Note: Descriptions are shown in the official language in which they were submitted.
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[DESCRIPTION]
[Invention Title]
VIBRATING RIPPER
[Technical Field]
The present invention relates to a vibrating ripper, and more particularly, to
a
vibrating ripper having a rotating member which compensates for a change in
length
due to rotation of at least one connecting member for supporting a vibrating
body
within a limited amplitude range, thereby allowing the vibrating body to
vibrate up
and down.
[Background Art]
Generally, to crush rock at a construction site, a breaker iron core is
installed
on an arm of heavy equipment and hits and crushes the rock. However, since
such
a conventional breaker hitting method causes loud noise pollution, heavy
equipment
with low noise and high efficiency is required. Also, in a terrain consisting
of only
rocks, the rocks are crushed using a breaker. However, in the case of soft
rocks,
when the breaker is used, the rocks are not crushed, but a hole is drilled.
Therefore,
an apparatus which can not only perform a simple rock crushing operation like
that
of a breaker, but can also crush and dig in the ground while vibrating up and
down in
the manner of a breaker while equipped with an excavator blade for digging in
the
ground in the manner of an excavator is required.
The present invention has proposed vibrating rippers disclosed in Korean
Patent Registration Nos. 1158101, 0878296 and 0755017 and Korean Patent
Publication No. 10-2009-0054513.
[Disclosure]
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[Technical Problem]
The present invention is directed to providing a vibrating ripper which is
capable of supporting vibration generated from a vibration generating unit to
vibrate
up and down and also minimizing left and right movement of a vibrating body
due to
an external force applied laterally.
Also, the present invention is directed to providing a vibrating ripper which
compensates for a change in length due to rotation of a connecting member for
supporting a vibrating body, thereby allowing the vibrating body to vibrate up
and
down and also enhancing vibration quality of the vibrating body.
[Technical Solution]
One aspect of the present invention provides a vibrating ripper including a
main body portion; a vibrating body coupled to the main body portion and a
vibrating body support unit and configured to vibrate; and a ripper blade
installed at
the vibrating body, wherein the vibrating body support unit includes a
rotating
member which is rotatably installed at the vibrating body or the main body
portion
configured to support the vibrating body, and first and second connecting
members
which rotatably connect upper and lower sides based on a rotation center of
the
rotating member with the main body portion or the vibrating body to support
the
vibrating body with respect to the main body portion, and when the vibrating
body
vibrates with respect to the main body portion, the rotating member rotates,
and thus
a change in a coupling position between the vibrating body and the first and
second
connecting member according to vibration is compensated for.
In the present invention, the rotating member may be rotatably installed at
the
vibrating body in a direction perpendicular to a vibration direction, the
first and
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second connecting members may be respectively installed at both sides of the
rotating member, and the vibrating body may vibrate up and down.
The vibrating ripper may further include a link cylinder which is rotatably
installed between the vibrating body and the main body portion to move a blade
connected to the vibrating body forward and backward.
Another aspect of the present invention provides a vibrating ripper wherein a
rotating member is rotatably installed at a vibrating body, in which a ripper
blade is
installed at a lower portion thereof and a vibration generating unit is
installed, in a
direction perpendicular to a vibration direction, and first and second
connecting
members rotatably connect upper and lower sides of a rotation center of the
rotating
member with a main body portion and support the vibrating body to vibrate up
and
down with respect to the main body portion.
The vibrating body may further include the vibration generating unit, and one
side of each of the first and second connecting members which is connected to
the
rotating member may be rotatably connected to vertical upper and lower
portions of
the rotation center.
Still another aspect of the present invention provides a vibrating ripper
including a main body portion; and a vibrating body coupled to the main body
portion and a vibrating body support unit and configured to vibrate, wherein
the
vibrating body support unit supports the vibrating body to vibrate with
respect to the
main body portion, and includes at least one rotating member which is
rotatably
installed at the vibrating body, and a first connecting member and a second
connecting member which connect to one side of the main body portion and upper
and lower sides based on a rotation center of the rotating member, and when
the
vibrating body vibrates up and down, the rotating member rotates, and a change
in a
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coupling position between the first and second connecting members and the
vibrating
body according to vibration is compensated for.
Yet another aspect of the present invention provides a vibrating ripper
including a main body portion; a vibrating body coupled to the main body
portion
and a vibrating body support unit and configured to vibrate; a vibration
generating
unit installed at the vibrating body; and a ripper blade installed at the
vibrating body,
wherein the vibrating body support unit includes a rotating member which is
rotatably installed at the vibrating body or the ripper blade, first and
second
connecting members, both ends of which are rotatably connected to the main
body
portion and upper and lower sides based on a rotation center of the rotating
member
to support the vibrating body with respect to the main body portion, a sub-
main body
which is supported at the main body portion located at an upper side of the
vibrating
body by a first elastic support unit, a connecting member which extends from
the
vibrating body to the inside of the sub-main body, and a rotating shaft which
is
supported by the sub-main body and is rotatably installed at the connecting
member.
[Advantageous Effects]
The vibrating ripper of the present invention can suspend the vibrating body
so that the vibrating body vibrates in one direction and also vibrates with a
uniform
amplitude even if a vibrating force of the vibrating body is increased. Also,
because one side of each of the first and second connecting members is
supported by
a rotating body, stability of a supporting force of the vibrating body with
respect to
the main body portion can be achieved. Since the vibrating ripper of the
present
invention is supported by a rotating member installed at the vibrating body
and the
first and second connecting members connecting the rotating member with the
main
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body portion, vibration directivity can be limited to up and down directions,
and
vibration quality of the vibrating blade can be enhanced.
[Description of Drawings]
FIG. 1 is a partially cut-out perspective view of a vibrating ripper according
to the present invention.
FIG. 2 is a front view illustrating another embodiment of the vibrating ripper
according to the present invention.
FIG. 3 is a partially cut-out perspective view of the vibrating ripper of FIG.
2
having a rotating member according to the present invention.
FIGS. 4 and 5 are front views illustrating an installation state of the
rotating
member and first and second connecting members.
FIG. 6 is a partially cut-out perspective view illustrating another embodiment
of the vibrating ripper having the rotating member according to the present
invention.
FIG. 7 is a front view illustrating a front surface of the vibrating ripper
illustrated in FIG. 6.
FIG. 8 is a partially cut-out perspective view of still another embodiment of
the vibrating ripper according to the present invention.
FIG. 9 is a partially cut-out perspective view illustrating a portion of one
embodiment of a rotating member restoring unit according to the present
invention.
FIG. 10 is a partially cut-out perspective view illustrating still another
embodiment of the vibrating ripper having the rotating member according to the
present invention.
FIG. 11 is a partially cut-out perspective view of the vibrating ripper
illustrated in FIG. 10.
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FIG. 12 is a side cross-sectional view illustrating a portion of a vibrating
body support unit illustrated in FIG. 10.
FIG. 13 is a partially cut-out perspective view illustrating yet another
embodiment of the vibrating ripper according to the present invention.
FIG. 14 is a partially cut-out perspective view illustrating the vibrating
ripper
illustrated in FIG. 13.
FIG. 15 is a side view illustrating a state in which a vibrating body support
unit and a stopper illustrated in FIG. 13 are installed.
[Modes of the Invention]
Exemplary embodiments of a vibrating ripper according to the present
invention are illustrated in FIGS. 1 to 9.
Referring to the drawings, a vibrating ripper 10 according to the present
invention includes a vibrating body 20, a main body portion 30 which supports
the
vibrating body 20, a vibrating body support unit 40 which supports the
vibrating
body 20 to vibrate with respect to the main body portion 30, and a ripper
blade 100
which is installed at a lower surface side of the vibrating body 20.
The main body portion 30 may have a vibrating space portion 31 of the
vibrating body 10. As illustrated in FIG. 1, a support bracket portion 32 for
coupling with operation equipment may be formed at an upper side or a side
surface
side of the main body portion 30 and may include first and second support
frame
members 33 and 34 which extend to both sides to form the vibrating space
portion 31,
and a cover frame 35 which is supported by the first and second support frame
members 33 and 34. The vibrating space portion 31 may not be partitioned
separately in the main body portion 30. The main body portion 30 is not
limited to
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the above-described embodiment and may have any structure in which the
vibrating
body 20 is supported by the vibrating body support unit 40 to be capable of
vibrating.
The vibrating body 20 is a member which is supported with respect to the
main body portion 30 by the vibrating body support unit 40 to vibrate with a
predetermined amplitude and may further include a vibration generating unit
200.
In the vibration generating unit 200, two rotating shafts each having an
eccentric weight are installed in a housing in parallel, and gears which are
engaged
with the rotating shafts are installed on both. The eccentric weights
installed at the
driving shafts are installed in the same direction with respect to the
rotating shafts to
maximize vibration in up and down directions. An actuator which drives at
least
one of the two driving shafts is installed in the housing. A vibration
generating unit
having such a configuration is disclosed in Korean Patent Registration No.
0878296
which was filed and registered by the applicant.
As illustrated in FIGS. 1 to 3, the vibrating body support unit 40 is a member
which supports the vibrating body 20 to be capable of vibrating with respect
to the
main body portion 30 and includes at least one rotating member 41 which is
installed
at the vibrating body 20 and first and second connecting members 50 and 60,
one end
of each of which is rotatably installed at an upper or lower side of a
rotation center of
the rotating member 41 to be deviated from the rotation center of the rotating
member 41 and the other end of which is rotatably installed at the main body
portion
30.
The rotating member 41 may be installed in a direction perpendicular to a
vibration direction of the vibrating body 20 and may be installed at upper and
lower
portions of the main body portion 30 to be located on a vertical axial line.
The
rotating member 41 may pass through the vibrating body 20 so that the ends
thereof
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protrude to both sides and may be bearing-supported to rotate smoothly with
respect
to the vibrating body 20 in normal and reverse directions. In this case, it is
preferable that an eccentric bearing be used as the bearing.
Meanwhile, the rotating member 41 may not pass through the vibrating body
20 but may be installed at both of corresponding side surfaces of the
vibrating body
20. In this case, it is preferable that centers of the rotating members 41
and 42 be
located on the same axial line. Also, as illustrated in FIG. 1, the rotating
member
41 may be installed at a separate bracket 21 which is formed at an upper side
of the
vibrating body 20. The drawing illustrates that the rotating member 41 is
installed
at the vibrating body 20. Furthermore, the rotating member 41 may be installed
at
the main body portion 30, and the vibrating body and the rotating member may
be
connected by the first and second connecting members, as described above.
The amplitude of the vibrating body 20 may be adjusted according to a
coupling position of each of the first and second connecting members 50 and 60
coupled to an upper side and a lower side of a horizontal line based on the
rotation
center of the rotating member 41 by a hinge shaft. That is, when the vibrating
body
becomes far from the first and second connecting members 50 and 60 and the
rotation center of the rotating member 41 upward or downward, the amplitude of
the
vibrating body is increased, and when the vibrating body becomes close to the
first
and second connecting members 50 and 60 and the rotation center of the
rotating
member 41, the amplitude of the vibrating body is reduced.
As illustrated in FIGS. 1 to 5, one end of each of the first and second
connecting members 50 and 60 of the vibrating body support unit 40 may be
rotatably installed on the upper and lower sides of the rotation center of the
rotating
member 41 with second and fourth hinge shafts 52 and 62. The other end of each
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of the first and second connecting members 50 and 60 is rotatably installed on
the
main body portion 30 with first and third hinge shafts 51 and 61. As
illustrated in
FIG. 4, the first and second connecting members 50 and 60 may be installed to
maintain a horizontal state without rotating. As illustrated in FIG. 5, a
connection
portion between the first connecting member 50 and the main body portion 30
through the first hinge shaft 51 is located further up than a connection
portion
between the rotating member 41 and the second hinge shaft 52, and a connection
portion between the second connecting member 60 and the main body portion 30
through the third hinge shaft 61 is located further up than a connection
portion
through the fourth hinge shaft 62 at the lower side of the rotation center of
the
rotating member 41.
In the embodiments, lengths of the first and second connecting members 50
and 60 may not be the same as each other but may be formed to be different
from
each other in consideration of a rotation angle of the rotating member 41 and
the
hinge-coupling positions of the first and second connecting members 50 and 60.
As illustrated in FIGS. 6 and 7, a tuning connection member 300, both ends
of which are rotatably connected to the vibrating body 20 and the main body
portion
30 to be tuned to the vibration, is further provided at a portion which is
spaced a
predetermined interval from the rotating member 41, e.g., at a vertical lower
side of
the rotating member 41. The tuning connection member 300 and the connection
portion of the vibrating body 20 which is rotatably connected with the hinge
shaft
may not be located on a vertical axial line of the center of the rotating
member 41 in
consideration of rotation of the vibrating body when the vibrating body 20 is
moved
up and down.
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The tuning connection member 300 may be configured with a cylinder. It is
preferable that a double-acting hydraulic cylinder be used as the cylinder.
That is, a
rod 302 which is connected to a piston 301 of a hydraulic cylinder is
rotatably
installed at the ripper blade 100 by a hinge shaft, and a cylinder 303 in
which the
piston 301 is installed to be movable forward and backward is rotatably
installed at
the main body portion 30.
Although the double-acting hydraulic cylinder has been described as an
example of the tuning connection member 300, the present invention is not
limited
thereto, and the tuning connection member 300 may be configured with a single-
acting cylinder and a link.
As illustrated in FIG. 8, the rotating member may be installed at each of the
upper and lower sides of the vibrating body 20, and as described above, the
first and
second connecting members 50 and 60 may be installed on the rotating members
41
and 42, respectively.
At least one anti-vibration member 70 may be installed between the vibrating
body 20 and the main body portion 30. In this case, the vibrating body 20 may
be
supported with respect to the main body portion by the anti-vibration member
70 and
may be supported by a separate member from the main body portion 30.
The anti-vibration member 70 may be installed between the vibrating body 20
and the main body portion 30. The anti-vibration member 70 may be formed of an
elastic rubber material or an elastic body such as an elastic spring, but is
not limited
thereto. The anti-vibration member 70 may amplify the vibration generated from
the vibration generating unit 200 and may provide a restoring force for the
vibration
when the vibrating body 20 vibrates. The anti-vibration member 70 may be
installed between an upper surface side of the vibrating body 20 and a lower
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of the main body portion 30 and may be installed between the vibrating body 20
and
the first support frame member 33 and between the vibrating body 20 and the
second
support frame member 34. The anti-vibration member 70 may be installed between
the upper surface side of the vibrating body 20 and the lower surface of the
main
body portion 30 and between the vibrating body 20 and each of the first and
second
support frame members 33 and 34.
Meanwhile, as illustrated in FIG. 9, the main body portion 30 may further
include a rotating member restoring unit 80 which restores the rotating member
30 to
its original position when the rotating member 41 rotates. The rotating member
restoring unit 80 may include a housing 82 which is installed at the main body
portion 30 while surrounding a support shaft 81 of the rotating member and an
elastic
member 83 which is installed between an outer circumferential surface of the
support
shaft 81 of the rotating member and an inner circumferential surface of the
housing
82 to restore rotation of the support shaft 81. At this time, the outer
circumferential
surface of the support shaft 81 may be formed to have a polygonal surface. The
rotating member restoring unit is not limited to that of the above-described
embodiment and may be formed so that a restoring protrusion is formed at the
outer
circumferential surface of the support shaft of the rotating member and an
elastic
spring is installed between the housing and the restoring protrusion. When the
rotating member restoring unit is provided as described above, the anti-
vibration
member does not have to be installed between the main body portion 30 and the
vibrating body 20.
FIGS. 10 to 14 illustrate another embodiment of the vibrating ripper
according to the present invention. In the embodiment, the same reference
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numerals as those in the previous embodiment indicate the same elements as
those in
the previous embodiment.
Referring to the drawings, a vibrating ripper 10 according to the present
invention includes a vibrating body 20, a main body portion 30 which supports
the
vibrating body 20, a vibrating body support unit 40 which supports the
vibrating
body 20 to vibrate with respect to the main body portion 30, and a ripper
blade 100
which is installed at a lower portion of the vibrating body support unit 40.
The
vibrating body 20 is a member which is supported with respect to the main body
portion 30 by the vibrating body support unit 40 to vibrate with a
predetermined
amplitude as described in the previous embodiment and may further include a
vibration generating unit 200.
As illustrated in FIGS. 10 to 12, the vibrating body support unit 40 is a
member which supports the vibrating body 20 to be capable of vibrating with
respect
to the main body pOrtion 30 and includes at least one rotating member 41 which
is
installed at the ripper blade 100 and first and second connecting members 50
and 60,
one end each of which is rotatably installed at an upper or lower side of a
rotation
center of the rotating member 41 to be deviated from the rotation center of
the
rotating member 41 and the other end of which is rotatably installed at a
cover frame
35 of the main body portion 30. Each of the first and second connecting
members
50 and 60 may be configured with a link member and may be supported by a first
hinge shaft 51 and a third hinge shaft 61 which are installed at the cover
frame 35.
An installation structure of the rotating member 41 may be the same as that in
the
previous embodiment. That is, the rotating member 41 may be installed in a
direction perpendicular to a vibration direction of the vibrating body 20 and
may be
installed at upper and lower portions of the main body portion 30 to be
located on a
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vertical axial line. The rotating member 41 may pass through the vibrating
body 20
or the ripper blade 100 so that the ends thereof protrude to both sides and
may be
bearing-supported to rotate smoothly with respect to the vibrating body 20 in
normal
and reverse directions. As illustrated in FIG. 12, it is preferable that an
eccentric
bearing 45 be used as the bearing. Meanwhile, the rotating member 41 may be
rotatably installed at the vibrating body 20.
A sub-main body 110, both sides of which are supported on the main body
portion 30 by a first elastic support unit 120, is installed at an upper side
of the
vibrating body 20, a connecting member 111 extends from the vibrating body 20
toward the sub-main body 110, and a connection between the sub-main body 110
and
the connecting member 111 may be achieved by a rotating shaft 113 which is
rotatably installed at the connecting member 111 in a direction parallel to
the rotating
member 41 and both ends of which are supported by the sub-main body 110. The
connecting member 111 may be supported by a bearing which is supported by the
rotating shaft 113, and the bearing may be an eccentric bearing. Here, the
eccentric
bearing, which is installed at the rotating shaft 113 and supports the
connecting
member 111, may limit rotation of the rotating member 41 when the vibrating
body
vibrates. However, a stopper which is not illustrated in the drawings and
limits
the rotation of the rotating member may be installed separately.
20 A first elastic
member 115 which provides a reaction force, performs an
elastic support operation and also absorbs a shock may be installed between an
upper
side of the connecting member 111 and an upper surface side of the sub-main
body
110. A second elastic member 116 which performs the elastic support operation
to
provide the reaction force and also to absorb the shock like the first elastic
member
115 is installed between the upper surface side of the sub-main body 110 and a
lower
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surface of the main body portion 30 corresponding thereto. Each of the first
and
second elastic members 115 and 116 may be configured with a member capable of
providing elastic force, such as elastic rubber, a shock absorber or an
elastic spring.
Although not illustrated in the drawings, the second elastic member may be
installed at a side surface of the sub-main body and a side surface of the
main body
portion corresponding thereto. The side surface of the sub-main body 110 and
the
side surface of the main body portion 30 at which the second elastic member is
installed may be installed to be inclined.
As illustrated in FIGS. 10 and 12, a tuning connection member 117 which
tunes the sub-main body 110 to the main body portion 30 may be installed
between
the sub-main body 110 and the main body portion 30. A hydraulic cylinder may
be
used as the tuning connection member 117, but the present invention is not
limited
thereto. A connecting member, a shock absorber and an actuator which may be
moved forward and backward may also be used.
FIGS. 12 to 14 illustrate still another embodiment of the vibrating ripper
according to the present invention. The same reference numerals as those in
the
previous embodiments indicate the same elements as those in the previous
embodiments.
Referring to the drawings, a vibrating ripper 10 according to the present
invention includes a vibrating body 20, a main body portion 30 which supports
the
vibrating body 20, a vibrating body support unit 40 which supports the
vibrating
body 20 to vibrate with respect to the main body portion 30, and a ripper
blade 100
which is installed at a lower portion of the vibrating body support unit 40.
The vibrating body support unit 40 is a member which supports the vibrating
body 20 to be capable of vibrating with respect to the main body portion 30,
and a
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vibrating body bracket 131 is installed at an upper side of the vibrating body
20, and
one rotating member 41 is rotatably installed at the vibrating body bracket
131.
One end of each of first and second connecting members 50 and 60 is rotatably
installed at an upper or lower side of a rotation center of the rotating
member 41 to
be deviated from the rotation center of the rotating member 41 and the other
end of
each of first and second connecting members 50 and 60 is rotatably installed
at the
main body portion 30. The rotating member 41 may be supported by the vibrating
body bracket 131 through an eccentric bearing 45.
A sub-main body 110 which is supported on the main body portion 30 by a
first elastic support unit 120 is installed at an upper side of the vibrating
body 20, and
a first elastic member 115 which provides a reaction force, performs an
elastic
support operation and also absorbs a shock may be installed between an upper
side of
the vibrating body bracket 131 and an upper surface side of the sub-main body
110.
A separate elastic member (not shown) which performs the elastic support
operation
to provide the reaction force and also to absorb the shock, like the second
elastic
member 116, is installed between the upper surface side of the sub-main body
110
and a lower surface of the main body portion 30 corresponding thereto, or a
side
surface of the sub-main body 110 and a side surface of the main body portion
30
corresponding thereto.
A tuning connection member (not shown), both ends of which are rotatably
connected to the vibrating body 20 and the main body portion and which is
tuned to
vibration, may be further provided at a portion which is spaced a
predetermined
interval from the rotating member 41, e.g., at a vertical lower side of the
rotating
member 41. The tuning connection member may be configured with the hydraulic
cylinder or the link, as described above. Both ends of the tuning connection
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member may be rotatably connected to the sub-main body and the main body
portion
and may also be rotatably connected to the ripper blade and the main body
portion.
The tuning connection member may be configured with the cylinder as described
in
the previous embodiments.
A stopper 140 which limits rotation of the rotating member 41 is installed at
the vibrating body bracket 131 or the sub-main body 110. As illustrated in
FIGS.
13 and 14, the stopper 140 is in contact with at least one first connecting
member 50
or second connecting member 60 and limits a rotating position of the rotating
member 41. However, the present invention is not limited thereto, and the
stopper
140 may be in contact with an extending link portion 41a of the rotating
member 41
and may limit the rotating position of the rotating member 41.
The stopper 140 may include a stopper shaft 141 which extends from the
vibrating body bracket 131 or the sub-main body 110 toward the first
connecting
member 50 or an upper side of the extending link portion 41a of the rotating
member
41, an elastic member 142 which is installed along an outer circumferential
surface
of the stopper shaft 141, and an outer circumferential ring 143 which is
installed on
an outer circumferential surface of the elastic member 142. The outer
circumferential ring 143 may be formed of a metal ring. Meanwhile, the elastic
member 142 may be formed to be eccentric or may have an eccentric bearing.
However, the present invention is not limited thereto, and the stopper may
have any
structure which can gradually reduce a rotating reaction force of the rotating
member
41 and thus can limit the rotating position of the rotating member 41. For
example,
the stopper may be configured with an elastic member or may be configured with
only an elastic member for absorbing the shock installed at the outer
circumferential
surface of the stopper shaft.
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In the vibrating ripper 10 according to the present invention having the
above-described configuration, the vibrating body 20 vibrates up and down due
to
driving of the vibration generating unit installed at the vibrating body 20.
In the vibrating ripper 10 that uses a length compensating member using
rotation according to the present invention, the vibrating body 20 vibrates up
and
down due to driving of the vibration generating unit installed on the
vibrating body
20 or the vibration generating unit installed on an attachment coupled to the
vibrating
body.
In this process, an action of the vibrating body support unit 40 which
supports
the vibrating body 20 is as follows.
When the vibrating body 20 is moved upward by an action of the vibration
generating unit, a change amount in a length due to rotation of each of ends
of the
first and second connecting members 50 and 60 as the vibrating body 20 is
moved up
while the rotating member 41 installed at the vibrating body 20 or the ripper
blade
100 rotates is compensated for. That is, when the vibrating body 20 which is
supported with respect to the main body portion 30 by the first and second
connecting member 50 and 60 vibrates vertically upward, each of the ends of
the first
and second connecting members 50 and 60 follows an arc trace due to the
rotation of
the first and second connecting members 50 and 60. At this time, a movement
amount of each of the ends of the first and second connecting members 50 and
60
toward the main body portion 30 while the rotating member 41 rotates is
compensated for. Therefore, the vibrating body 20 may vibrate in the vibrating
space portion 31 of the main body portion 30. In particular, since the
rotating
member 41 is supported by the eccentric bearing 45, a change in a position of
each of
the ends when the first and second connecting members 50 and 60 are rotated
along
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the arc is compensated for. That is, while the rotating member 41 rotates,
each of
the ends of the first and second connecting members 50 and 60 which connect
the
main body portion 30 and the rotating member 41, i.e., the rotating member 41,
absorbs a change in a length of a connection portion. When the vibrating body
20 is
moved downward from an uppermost portion (a top dead point) or is moved from a
lowermost portion (a bottom dead point) to the uppermost portion, problems may
occur due to inertia of the vibrating body 20. The eccentric bearing 45 moves
the
position of the rotating member 41 and thus compensates for or absorbs the
problems.
In the case in which the vibrating body 20 is moved down, when the vibrating
body 20 vibrates vertically downward, the first and second connecting members
50
and 60 are rotated in the reverse direction, and each of the ends of the first
and
second connecting members 50 and 60 follows the arc trace. At this time, while
the
rotating member 41 rotates, ends of the first and second connecting members 50
and
60 move away from the main body portion 30, and the change amount thereof is
absorbed by the rotating member. Therefore, the vibrating body 20 vibrates up
and
down.
Meanwhile, an operation of the vibrating ripper as illustrated in FIGS. 10 and
15 is also substantially the same as that in the previous embodiment. Since
the
rotating member 41 is installed at the upper portion of the vibrating body 30,
and the
tuning connection member 300 is installed at the ripper blade 100 or the sub-
main
body 110, the rotation of the main body portion due to an external force
applied to
the vibrating body 20 and the ripper blade 100 can be prevented, and since the
stopper 140 which is in contact with the first connecting member 50 or the
second
connecting member is installed at the sub-main body 110, the rotating portion
of the
rotating member 41 can be limited.
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In this process, since the connecting member 111 installed at the upper side
of the vibrating body 20 is supported by the sub-main body 110 through the
bearing,
distortion of the vibration due to excessive rotation of the rotating member
41 which
is supported by the first and second connecting members 50 and 60 can be
prevented
when the vibrating body 20 is moved up and down. Also, since the sub-main body
110 is supported on the main body portion 30 by the first elastic support unit
120, the
vibration of the vibrating body 20 can be prevented from being transmitted to
the
main body portion 30.
In particular, since the first and second elastic members 115 and 116 are
installed between the sub-main body 110 and the connecting member 111 and
between the sub-main body 110 and the main body portion 30, transmission of
the
vibration generated from the vibrating body 20 from being transmitted to the
main
body portion 20 can be reduced, and the vibration can also be prevented from
being
transmitted to an excavator boom which supports the main body portion 30.
Since the tuning connection member 300 is installed between the sub-main
body 110 and the main body portion 30, the ripper blade can be prevented from
being rotated when the external force is applied to the vibrating body 20 and
the
ripper blade 100.
As described above, the vibration acting on the vibrating body 20 is
transmitted to the ripper blade 100 and crushes rocks, and the vibration
applied to the
vibrating body 20 and the ripper blade 100 is concentrated on an end side of
the
ripper blade 100, and thus a crushing force of the rocks and an excavating
force can
be increased. In particular, when the vibrating body vibrates downward, an
inertial
force due to a weight of the vibrating body 20 and a weight of the ripper
blade 100
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CA 02964074 2017-04-07
acts on the end of the ripper blade 100, and thus the crushing force can be
further
_
enhanced.
Although a few embodiments of the present invention have been shown and
described, they are merely illustrative, and it will be apparent that those
skilled in the
art can make various modifications and changes thereto within the scope of the
invention defined by the claims. Therefore, the true scope of the present
invention
should be defined by the technical spirit of the appended claims.
[Industrial Applicability]
The vibrating ripper that uses the length compensating member using
rotation according to the present invention may be used variously by being
applied to
attachments of an excavator and heavy equipment.
