Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
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A REPLACEABLE WEAR COMPONENT
TECHNICAL FIELD
The present disclosure relates to a replaceable wear component for an
industrial
accessory which is subjected to both internal and external wear during use.
The present
disclosure also relates to an industrial accessory comprising an inner side
which is
subjected to internal wear during use caused by abrasive material and an
external side
which is subjected to external wear during use caused by abrasive material.
BACKGROUND OF THE DISCLOSURE
An industrial accessory, such as a bucket for an earth moving machine, a load
platform
for moving earth material, and a load bay for moving earth material, is
subjected to wear
during use caused by abrasive material. To reduce the wear rate, the
industrial accessory
is typically made of an abrasive-resistant material, such as certain types of
steel having a
high abrasion resistance. In addition, the industrial accessory may also
comprise separate
wear components, or wear plates, which are attached to the industrial
accessory. The
wear components are typically attached to the industrial accessory at specific
areas
thereof where the abrasion caused by abrasive material during use is high.
Even though there exist different types of wear components for such industrial
accessories, there is still a strive to develop further improved wear
components.
SUMMARY OF THE DISCLOSURE
In view of the above, an object of the disclosure is to provide an improved
replaceable
wear component for an industrial accessory which at least partly alleviates
one or more
drawbacks of the prior art, or which at least provides a suitable alternative.
A further
object of the disclosure is to provide a replaceable wear component in which
at least one
of the following advantages is achieved: 1) the wear component's load
absorption during
use is improved; 2) the attachment and/or detachment procedure of the
replaceable wear
component is facilitated; 3) both the inner and external sides of the
industrial accessory
can be effectively protected by one component; 4) the replaceable wear
component can
be retro-fitted to many different types of industrial accessories; and 5) the
replaceable
wear component can be easily attached to industrial accessories with different
plate
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thickness. A yet further object of the disclosure is to provide an improved
industrial
accessory comprising a replaceable wear component, which at least partly
alleviates one
or more drawbacks of the prior art, or which at least provides a suitable
alternative.
According to a first aspect of the disclosure, at least one of the objects is
at least partly
achieved by a replaceable wear component according to claim 1.
Thus, there is provided a replaceable wear component for an industrial
accessory.
The wear component comprises:
- an inner wear member comprising an inner wear surface,
- an outer wear member comprising an outer wear surface,
- wherein the inner and outer wear members are configured to be releasably
attached to
each other so that the inner and outer wear surfaces are provided on opposing
sides of
the wear component, and
- wherein at least one of the inner and outer wear members further
comprises:
- a support surface provided on an opposite side with respect to its
wear surface,
- a protruding portion provided on the opposite side, wherein the
protruding
portion extends away from the support surface and in a direction away from
the wear surface of the wear member so that it forms an extension of the
wear member, and wherein the protruding portion comprises a mating
surface facing away from the wear surface of the wear member.
Furthermore, the mating surface of the at least one of the inner and outer
wear members
is adapted to face a corresponding mating surface of the other one of the
inner and outer
wear members when the inner and outer wear members are attached to each other.
By the provision of a replaceable wear component as disclosed herein, an
improved
replaceable wear component is achieved. For example, the present disclosure is
based
on a realization that by using a protruding portion as disclosed herein for at
least one of
the wear members, the accommodation of forces exerted on the wear component
during
use will be improved. More particularly, it has been realized that forces
exerted on known
wear components may result in a very high wear and tear on the attachment
members,
typically screws or bolts, so that eventually the attachment members may
break. This may
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be especially relevant if forces exerted on the wear component are large in a
direction
corresponding to the extension of its wear surface. Accordingly, by
configuring at least
one of the wear members with a protruding portion as disclosed herein, the
protruding
portion can be inserted into an opening of the industrial accessory so that
forces exerted
on the wear component will at least partly be transferred from the wear
component to the
industrial accessory via the protruding portion. As such, forces transferred
to the industrial
accessory via any attachment member will be significantly reduced, or
eliminated,
implying increased service life of the wear component and of the attachment
member(s).
In addition, as another example, by the provision of the replaceable wear
component as
disclosed herein, both the inside and the external side of the industrial
accessory can be
more effectively protected during use. For example, by configuring the wear
component
with two separate wear members with corresponding mating surfaces which are
facing
each other when the wear members are attached to each other, and with
respective inner
and outer wear surfaces, the wear component will work as a single wear
component
which protects both the inside and the external side. Accordingly, instead of
using e.g.
separate and distant wear components on the inside and on the outside, there
is provided
a single wear component which extends through an opening of the industrial
accessory.
An inner wear member as disclosed herein is a wear member which is intended to
be
provided on an inside of the industrial accessory. Accordingly, an outer wear
member as
disclosed herein is a wear member which is intended to be provided on an
outside, or
external side, of the industrial accessory.
The wear component as disclosed herein is replaceable due to the fact that the
inner and
outer wear members are releasably attached to each other.
By "releasably attached' is herein meant that the wear members can be attached
to and
detached from each other, for example without damaging, or at least not
significantly
damaging, any attachment members for attaching the wear members to each other.
Optionally, the at least one of the inner and outer wear members may be
configured so
that the support surface and the protruding portion thereof form a recess
between the
inner and outer wear members when being attached to each other. Thereby, an
improved,
more reliable and robust support to the industrial accessory may be achieved.
Preferably,
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when the replaceable wear component is received in an opening of the
industrial
accessory, the recess may be used to at least partly enclose a portion of the
industrial
accessory which defines a perimeter of the opening.
Still optionally, the recess may extend at least partly around a perimeter
profile of the
wear component when the inner and outer wear members are attached to each
other.
More preferably, the recess may extend completely around the perimeter profile
of the
wear component when the inner and outer wear members are attached to each
other.
This implies a more reliable and robust support which can better withstand
forces exerted
thereon from several different directions. For example, the at least one of
the inner and
outer wear members may be configured so that the support surface thereof
extends
around, such as completely around, i.e. encloses, the protruding portion
thereof.
Optionally, the wear component may be adapted so that the mating surface and
the
corresponding mating surface are able to be in conforming contact with each
other when
the inner and outer wear members are attached to each other. By "conforming
contact" is
herein meant that the corresponding surfaces are adapted to substantially
match and
follow each other all over an area therebetween when being attached to each
other.
Preferably, the mating surface and the corresponding mating surface are planar
surfaces.
Optionally, the wear component may further comprise an intermediate washer
element
being adapted to be placed in-between the mating surface and the corresponding
mating
surface when the inner and outer wear members are attached to each other.
Thereby, the
wear component may be easily adapted to different plate thicknesses of
different
industrial accessories. This implies a more flexible wear component, which in
turn implies
cost-effectiveness.
Optionally, the inner wear member may comprise at least one bore for receiving
a
respective attachment member, such as a screw or bolt, and the outer wear
member may
comprise at least one corresponding bore for receiving the respective
attachment
member, wherein the inner and outer wear members are adapted to be releasably
attached to each other by insertion of the respective attachment member into
the at least
one bore and into the at least one corresponding bore. Accordingly, the at
least one bore
and the at least one corresponding bore are aligned when the inner and outer
wear
members are attached to each other. Thereby, instead of using different sets
of
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attachment members for attaching one wear member to the other and vice versa,
fewer
attachment members may be used. Still optionally, the at least one bore of the
inner
and/or outer wear members may extend through the protruding portion. For
example, the
at least one bore of the inner and/or outer wear members may extend through
the inner
5 and/or outer wear member, e.g. including extending through the protruding
portion, in a
direction which is substantially perpendicular to the respective wear surface
of the inner
and/or outer wear member. This implies a more robust configuration.
Optionally, at least one of the inner and outer wear members may comprise a
wear
indicator which is adapted to provide a visual and/or haptic wear indicia to a
user during
use. Thereby, a user may more easily determine when it is time to replace at
least one of
the inner and outer wear members of the wear component. For example, the wear
indicator may be provided by a bore extending in a direction towards the wear
surface of
the inner or outer wear member, such as in a direction being substantially
perpendicular
to the wear surface. The bore may terminate at a specific distance from the
wear surface
so that when the wear surface has been worn down the specific distance, an
opening of
the bore appears on the wear surface. Thereby, a user may identify the opening
of the
bore, implying that the wear member is worn and needs to be replaced.
Optionally, each one of the inner and outer wear members may comprise:
- a support surface provided on an opposite side with respect to its
wear surface,
- a protruding portion provided on the opposite side, wherein the
protruding
portion extends away from the support surface and in a direction away from
the wear surface of the wear member so that it forms an extension of the
wear member, and wherein the protruding portion comprises a mating
surface facing away from the wear surface of the wear member, and
- wherein the mating surface of the inner wear member is adapted to face the
mating
surface of the outer wear member when the inner and outer wear members are
attached
to each other.
Configuring the inner and outer wear members so that they are similar in shape
may imply
cost-effectiveness and facilitated attachment/detachment procedure.
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Optionally, at least one of the inner and outer wear members may be made in
one single
piece, and/or at least one of the inner and outer wear members may comprise a
separate
protruding portion which is attached to another separate member of the at
least one of the
inner and outer wear members which comprises the inner or outer wear surface.
The
attachment of the separate protruding portion which is attached to the other
separate
member is preferably a permanent attachment, i.e. an irreversible attachment,
such as a
weld. Thereby, by configuring at least one of the wear members in one single
piece or by
at least two parts which are permanently attached to each other, the wear
component
may comprise few separate parts. This implies easier handling for a user. For
example,
the wear component may be assembled and attached to the industrial accessory
by
providing a single wear member on the inside and a single wear member on the
outside.
Optionally, the protruding portion of the at least one of the inner and outer
wear members
may have an oblong profile, as seen in an extension of the protruding portion
which
corresponds to an extension of the wear surface of the at least one of the
inner and outer
wear members. Thereby, the wear component may be able to better withstand and
accommodate forces in specific directions. More specifically, it has further
been realized
that for industrial accessories which are subjected to wear during use caused
by abrasive
material, the abrasive material is commonly provided onto the industrial
accessory in a
main direction. As such, by configuring the protruding portion with an oblong
profile, a
larger area on the protruding portion may accommodate the forces in the main
direction,
thereby resulting in a reduced pressure thereon compared to forces exerted
onto a
smaller area.
Optionally, at least one of the inner and outer wear members may have a T-
formed
profile, as seen in a sectional plane which is defined by a length direction
and a height
direction of the replaceable wear component. The height direction is
perpendicular to the
wear surfaces of the wear component. The length direction is perpendicular to
the height
direction. Still optionally, the inner and outer wear members, when being
attached to each
other, may have a H-formed profile, as seen in the sectional plane which is
defined by the
length direction and the height direction of the replaceable wear component.
According to a second aspect of the disclosure, at least one of the objects is
at least partly
achieved by an industrial accessory according to claim 11.
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Thus, there is provided an industrial accessory comprising an inner side which
is
subjected to internal wear during use caused by abrasive material and an
external side
which is subjected to external wear during use caused by abrasive material.
The industrial accessory further comprises:
- an opening between the inner side and the external side for receiving a
replaceable
wear component, and
- the replaceable wear component according to any one of the embodiments of
the first
aspect of the disclosure, wherein the replaceable wear component is received
in the
opening by providing the inner wear member from the inner side so that the
inner wear
surface faces away from the opening, and by providing the outer wear member
from the
external side so that the outer wear surface faces away from the opening, and
wherein
the protruding portion of the at least one of the inner and outer wear members
extends
into the opening.
Advantages and effects of the second aspect of the disclosure are largely
analogous to
advantages and effects of the first aspect of the disclosure. It shall also be
noted that all
embodiments of the second aspect of the disclosure are applicable to all
embodiments of
the first aspect of the disclosure, and vice versa.
An inner side of the industrial accessory may be defined as a side where
abrasive
material is generally intended to be stored during use, at least temporarily
stored.
Accordingly, an external side of the industrial accessory may be defined as an
opposite
side to the inner side.
Optionally, when the replaceable wear component comprises a recess as
disclosed
herein, the recess may at least partly enclose a portion of the industrial
accessory which
at least partly defines a perimeter of the opening. More preferably, the
recess may at least
partly enclose a portion of the of the industrial accessory which extends
around the
complete perimeter of the opening when the replaceable wear component is
received in
the opening.
Optionally, the industrial accessory may be an earth moving accessory for an
earth
moving machine, such as any one of a bucket for moving earth material, a load
platform
for moving earth material, and a load bay for moving earth material.
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Optionally, when the industrial accessory is a bucket, the opening may be
provided on a
heel section of the bucket which is provided between a bottom section and a
side wall of
the bucket. It has further been realized that the heel section of a bucket is
an area of the
bucket where wear components may require to be frequently replaced.
Furthermore,
especially the external side of the heel section is subjected to large forces
when the
bucket is collecting earth material. As such, by the provision of a wear
component as
disclosed herein at the heel section, an improved bucket will be achieved.
Optionally, the heel section may be inclined with respect to the bottom
section and with
respect to the side wall, such as the heel section may form an angle of
substantially 45
degrees with respect to the bottom section and with respect to the side wall.
Still optionally, the heel section may comprise one or more replaceable heel
section
members which connect the side wall and the bottom section.
BRIEF DESCRIPTION OF THE DRAWINGS
With reference to the appended drawings, below follows a more detailed
description of
embodiments of the disclosure cited as examples.
In the drawings:
Figs. la-b are schematic sectional views of a replaceable wear component
according to
an example embodiment of the disclosure,
Fig. 2 is a schematic sectional view of a replaceable wear component according
to
another example embodiment of the disclosure,
Fig. 3 is a perspective view of a replaceable wear components according to an
example
embodiment of the present disclosure,
Fig. 4 is a sectional view of the replaceable wear component as shown in fig.
3,
Figs. 5a-b are schematic perspective views of an industrial accessory
according to an
example embodiment of the present disclosure,
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Fig. 6 is a schematic perspective view of another industrial accessory
according to an
example embodiment of the disclosure, and
Figs. 7a-b are schematic views from below of respective wear members of
respective
replaceable wear components according to example embodiments of the disclosure
The drawings show diagrammatic exemplifying embodiments of the present
disclosure
and are thus not necessarily drawn to scale. It shall be understood that the
embodiments
shown and described are exemplifying and that the disclosure is not limited to
these
embodiments. It shall also be noted that some details in the drawings may be
exaggerated in order to better describe and illustrate the disclosure. Like
reference
characters refer to like elements throughout the description, unless expressed
otherwise.
DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS
Fig. la depicts a schematic and sectional view of a replaceable wear component
1
according to an example embodiment of the present disclosure. The section
corresponds
to a plane which is defined by a length direction L and a height direction H
of the
replaceable wear component 1. The height direction H extends in a direction
which is
perpendicular to the wear surfaces 12, 22 of the wear component 1, and the
length
direction L is perpendicular to the height direction H.
The replaceable wear component 1 is a replaceable wear component for an
industrial
accessory, for example an industrial accessory 100, 100' as shown in figs. 5-
6, which is
subjected to both internal and external wear during use caused by abrasive
material.
Abrasive material as used herein may be defined as any material comprised in
for
example earth material, such as stones of different sizes, gravel, sand,
minerals etc. It
may also be pre-processed material, such as metal scrap, building material,
concrete, any
type of waste material etc.
The wear component 1 comprises:
- an inner wear member 10 comprising an inner wear surface 12, and
- an outer wear member 20 comprising an outer wear surface 22.
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The inner and outer wear members 10, 20 are configured to be releasably
attached to
each other so that the inner and outer wear surfaces 12, 22 are provided on
opposing
sides of the wear component 1.
5
The wear members 10, 20, and especially the wear surfaces 12, 22, are
preferably made
of hard abrasive-resistant material, such as different types of abrasive
resistant steel.
Purely by way of example, at least one of the wear surfaces 12, 22 may
comprise a
coating with an abrasive-resistant material.
10 Fig. la depicts the inner and outer wear members 10, 12 when being detached
from each
other and fig. lb depicts the inner and outer wear members 10, 12 when being
attached
to each other.
The inner wear member 10 further comprises:
- a support surface 14 provided on an opposite side with respect to its
wear surface 12,
- a protruding portion 16 provided on the opposite side, wherein the
protruding portion extends away from the support surface 14 and in a
direction away from the wear surface 12 of the inner wear member 10 so
that it forms an extension of the inner wear member 10, wherein the
protruding portion 16 comprises a mating surface 161 facing away from the
wear surface 12 of the inner wear member 10.
As shown, the outer wear member 20 may in a similar manner further comprise:
- a support surface 24 provided on an opposite side with respect to its
wear surface 22,
- a protruding portion 26 provided on the opposite side, wherein the
protruding portion 26 extends away from the support surface 24 and in a
direction away from the wear surface 22 of the wear member 20 so that it
forms an extension of the outer wear member 20, wherein the protruding
portion 26 comprises a mating surface 261 facing away from the wear
surface 22 of the outer wear member 20.
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Accordingly, as shown, each one of the inner and outer wear members 10, 20 may
be
configured with a respective support surface 14, 24 and a respective
protruding portion
16, 26.
The mating surface 161 of the inner wear member 10 is adapted to face the
mating
surface 261 of the outer wear member 20 when being attached to each other.
The wear surfaces 12, 22 may as shown be substantially planar surfaces. The
support
surfaces 14, 24 may also as shown be substantially planar surfaces. The wear
surfaces
12, 22 and the support surfaces 14, 24 may be defined by respective planes
which are
offset from each other and perpendicular to the height direction H.
In the shown embodiment, the wear component 1 is provided through, i.e.
mounted in, an
opening 130 of an industrial accessory, for example the industrial accessory
100 and 100'
as shown in figs. 5-6 which will be described in more detail in the below. The
opening 130
is an opening through a portion 102 of the industrial accessory. The portion
102 is here a
portion of a sheet metal plate, such as a sheet metal plate of a bucket 100
for an
excavator as shown in figs. 5a-b or a sheet metal plate of a load bay 100' for
a truck as
shown in fig. 6.
As shown, the support surface 14 of the inner wear member 10 may be adapted to
be
received on and supported by a seat surface 102' of the portion 102 which is
located on
an inner side of the industrial accessory. The support surface 24 of the outer
wear
member 20 may be adapted in a similar manner, i.e. it may be adapted to be
received on
and supported by a seat surface 102" of the portion 102 which is located on an
external
side thereof. In the shown embodiment, the seat surfaces 102', 102" of the
portion 102
are substantially planar surfaces.
As further shown, at least one of the inner and outer wear members 10, 20 may
be
configured so that the support surface 14, 24 and the protruding portion 16,
26 thereof
form a recess 30 between the inner and outer wear members 10, 20 when being
attached
to each other. In the shown embodiment, the support surfaces 14, 24 and the
protruding
portions 16, 26 together form the recess 30.
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As further shown, the recess 30 may extend at least partly around a perimeter
profile of
the wear component 1 when the inner and outer wear members 10, 20 are attached
to
each other. In the shown examples, an opening of the recess 30 faces away from
the
wear component 1 in directions which are perpendicular to the height direction
H.
Even though a recess 30 around a perimeter profile is shown, it shall be noted
that the
recess may additionally, or alternatively, be formed at other locations
between the inner
and outer wear members 10, 20. For example, as shown in figs. 7a and 7b, a
protruding
portion 16', 16" may be segmented with intermediate recesses 31, 32 located
between
the segments. Figs. 7a and 7b depict schematic views from below of respective
inner
wear members 10', 10". Accordingly, by way of example, there may be multiple
of
recesses 30, 31, 32 provided between the inner and outer wear members. In the
shown
embodiments, the multiple recesses 30, 31, 32 are formed by three separate
segments of
the protruding portion 16', 16" and by the support surface 14', 14". In fig.
7a, each
segment 16' is shaped substantially as a rectangle, as seen from below. In
fig. 7b, each
segment 16" is shaped as a circle, as seen from below. Other shapes are of
course also
possible, such as an elliptic shape or a substantial square shape. Preferably,
the outer
wear member (not shown) is formed by similarly shaped segments of its
protruding
portion. As such, portions of the industrial accessory (not shown in figs. 7a-
b) may extend
in each one of the recesses 30, 31, 32 which are formed between the inner and
outer
wear members. By providing multiple recesses, the wear component 1 may better
withstand and accommodate large forces which are directed in the direction of
the wear
surfaces 12, 22. Still further, by way of example, each one of the segments
16', 16" may
also comprise an opening for receiving an attachment member as disclosed
herein, e.g. a
screw or bolt.
As shown in e.g. fig. 1 b, the wear component 1 is preferably adapted so that
the mating
surface 161 and the corresponding mating surface 261 are able to be in
conforming
contact with each other when the inner and outer wear members 10, 20 are
attached to
each other. In the shown embodiment, the mating surface 161 and the
corresponding
mating surface 261 are in conforming contact with each other when the inner
and outer
wear members 10, 20 are attached to each other. It can further be gleaned from
e.g. fig.
lb that the mating surfaces 161, 261 may be planar surfaces. The planar
surfaces 161,
261 extend in a plane defined by the length direction L and a width direction
w of the wear
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component 1. The width direction w is perpendicular to the length direction L
and to the
height direction H.
As shown in fig. 2, the wear component 1 may further comprise an intermediate
washer
element 40 which is adapted to be placed in-between the mating surface 161 and
the
corresponding mating surface 261 when the inner and outer wear members 10, 20
are
attached to each other. Thereby, the wear component 1 will be more flexible
and
adaptable to different plate thicknesses of the industrial accessory.
Accordingly, by way of
example, the wear members' height may be standardized, whereby intermediate
washer
elements with varying thickness in the height direction H can be provided to
vary the
height of the wear component 1.
As further shown in e.g. figs. la-b and 2, the inner wear member 10 may
comprise at
least one bore 18 for receiving a respective attachment member 50, such as a
screw or
bolt, and the outer wear member 20 may comprise at least one corresponding
bore 28 for
receiving the respective attachment member 50. The inner and outer wear
members 10,
are thereby adapted to be releasably attached to each other by insertion of
the
respective attachment member 50 into the at least one bore 18 and into the at
least one
corresponding bore 28. In the shown embodiments, there are three attachment
members
20 50 provided in respective pairs of bores of the inner and outer wear
members 10, 20. As
shown, each pair of bores of the inner and outer wear members 10, 20 are
aligned so that
a respective attachment member 50 can be inserted therethrough. Even though
three
pairs of bores are shown, it shall be understood that there may be more of
fewer pairs of
bores depending on e.g. the size of the wear component 1. The attachment
members 50
as shown in the embodiments are threaded screws or bolts. As such, at least
one of the
wear members 10, 20 may have corresponding threads in its bore(s) for the
threaded
screw of bolt. Other attachment means are of course also possible, such as a
bolt and nut
connection, a releasable snap-fit connection etc.
The bores 18, 28, as shown, preferably extend in a direction from the inner
wear surface
12 to the outer wear surface 22, i.e. in the height direction H. Still
further, as shown, the
bores 18, 28 preferably extend through each respective protruding portion, 16
and 26.
As further shown in figs. la-b, at least one of the inner and outer wear
members 10, 20
may comprise a wear indicator 60 which is adapted to provide a visual and/or
haptic wear
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indicia to a user during use. In the shown example, the inner wear member 10
is provided
with a wear indicator 60 in the form of a bore which is drilled from the
mating surface 161
towards the inner wear surface 12. The bore 60 terminates at a distance from
the inner
wear surface 12. As such, when the inner wear surface 12 is worn down so that
the bore
60 is revealed, it results in a visual and/or haptic indicator for a user that
the inner wear
member 10 should be replaced. The outer wear member 20 may be equipped with a
similar or different wear indicator.
As further shown in e.g. figs. la-b and 2, the inner and outer wear members
10, 20 may
be made in one single piece. Alternatively, at least one of the inner and
outer wear
members 10, 20 may comprise a separate protruding portion which is attached to
another
separate member of the at least one of the inner and outer wear members which
comprises the inner or outer wear surface.
Fig. 3 shows a perspective view of a wear component 1 similar to the ones
shown in figs.
la-b and 2. However, the embodiment in fig. 3 further shows that the
protruding portion
16, 26 of the at least one of the inner and outer wear members 10, 20 may have
an
oblong profile, as seen in an extension of the protruding portion 16, 26
corresponding to
an extension of the wear surface 12, 22 of the at least one of the inner and
outer wear
members 10, 12. As can be seen, the wear surfaces 12, 22, extend in respective
planes
which are defined by the length direction L and the width direction w, i.e.
respective
planes which are perpendicular to the height direction H. In fig. 3, the
protruding portion
16 of the inner wear member 10 can be seen. However, the outer wear member 20
has in
this embodiment a corresponding protruding portion 26, even though other
shapes are
also conceivable. Accordingly, the oblong protruding portion 16 extends in the
length
direction L and in the width direction w of the wear component 1, whereby its
length in the
length direction L is longer than its length in the width direction w. It
shall be noted that
other profiles are also possible, such as a circular profile. As depicted in
e.g. figs. 1-3,
each support surface 14, 24 extends around, in these examples completely
around, its
respective protruding portion 16, 26. In other words, each support surface
14,24 may
enclose its respective protruding portion 16, 26.
As further shown in fig. 3, a washer element 52 may be provided for each
attachment
member 50. The washer element 52 may for example be a so-called tension-
locking
washer element which uses tension created by use of two adjacent washers to
lock the
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screw or bolt. Alternatively, the washer element may be a more traditional
friction-locking
washer element.
Fig. 4 shows the wear component 1 of fig. 3 in a sectional view defined by a
plane which
5 extends in the length direction L and the height direction H of the wear
component 1. As
shown also for this embodiment, a recess 30 is formed between the inner and
outer wear
members 10, 20. The recess 30 as shown extends around the complete perimeter
of the
wear component 1.
10 As depicted in e.g. fig 4, the inner and outer wear members 10, 20 may have
a T-formed
profile, as seen in the sectional plane which is defined by the length
direction L and the
height direction H of the replaceable wear component 1. As further shown in
fig. 4, the
inner and outer wear members 10, 20, when being attached to each other, may
have a H-
formed profile, as seen in the sectional plane which is defined by the length
direction L
15 and the height direction H of the replaceable wear component 1.
With reference to figs. 5a-b, schematic perspective views of an industrial
accessory 100
according to an example embodiment of the present disclosure is depicted.
The industrial accessory 100, which here is in the form of a bucket for an
earth moving
machine, comprises an inner side 110 which is subjected to internal wear
during use
caused by abrasive material and an external side 120 which is subjected to
external wear
during use caused by abrasive material.
The industrial accessory 100 further comprises:
- an opening 130 between the inner side and the external side for receiving
a replaceable
wear component, and
- the replaceable wear component 1 according to any one of the embodiments
of the first
aspect of the disclosure.
In the shown embodiment, there is provided seven wear components 1 in
respective
openings on a heel section 140 of the bucket 100. It shall however be noted
that there
may be more of fewer wear components, for example depending on the size of the
bucket
100. The wear components 1 as shown are here identical, even though in
alternative
embodiments the wear components may be of different shape.
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16
The heel section 140 of the bucket 100 is as shown provided between a bottom
section
150 and a side wall 160 of the bucket 100. Moreover, as shown, the heel
section 140 may
be inclined with respect to the bottom section 150 and with respect to the
side wall 160.
As further shown, the heel section 140 may form an angle of substantially 45
degrees with
respect to the bottom section 150 and with respect to the side wall 160. Yet
further, as
shown, the heel section 140 may comprise a plurality of replaceable heel
section
members 141 which connect the side wall 160 and the bottom section 150. In the
shown
embodiment, the wear components 1 are provided on each heel section member
141.
Each replaceable wear component 1 is received in the respective opening 130 by
providing the inner wear member 10 from the inner side 110 so that the inner
wear
surface 12 faces away from the opening 130, and by providing the outer wear
member 20
from the external side 120 so that the outer wear surface 22 faces away from
the opening
130. Furthermore, as shown in the previous figs., the protruding portion 16,
26 of the at
least one of the inner and outer wear members 10, 20 extends into the
respective opening
130.
Furthermore, similar to the embodiment shown in e.g. figs. la-b, each
respective
replaceable wear component 1 comprises a recess 30. The respective recess 30
at least
partly encloses a portion 102, see e.g. figs. la-b, of the industrial
accessory 100 which at
least partly defines a perimeter of the opening 130.
As mentioned in the above and shown in figs. 7a-b, the recess 30 may be formed
by use
of a segmented protruding portion 16', 16" of the inner 10', 10" and/or outer
wear
members. Accordingly, the opening of the industrial accessory may be
partitioned,
forming corresponding openings adapted to receive the segmented protruding
portion.
Even though it has been found that the wear component 1 is particularly
advantageous for
a bucket 100, the wear component 1 may also be used for other industrial
accessories,
such as a load platform for moving earth material, and a load bay for moving
earth
material. A schematic illustration of a load bay 100' for a truck is shown in
perspective
view in fig. 6. One or more wear components 1 may be provided on the load bay
100' at
different locations, such as in the proximity of a tipping opening of the load
bay 100'. For
example, section A indicates an area at a bottom surface of the load bay 100'
proximate
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17
the tipping opening where one or more wear components 1 may be provided. Other
areas
where one or more wear components 1 may be provided are for example in bottom
corners of the load bay 100'.
It is to be understood that the present disclosure is not limited to the
embodiments
described above and illustrated in the drawings; rather, the skilled person
will recognize
that many changes and modifications may be made within the scope of the
appended
claims.
