JP2007283174A - Dismantling working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dismantling working machine capable of accomplishing a function for pressing an object to be dismantled and a function for clamping it at a low cost while suppressing increase of a weight. <P>SOLUTION: The dismantling working machine is provided with a pair of left and right arms 27, 28 extending from a lower traveling body 2 to a front side, a retaining part 20 provided on the lower traveling body 2 and retaining the respective arms 27, 28 respectively such that at least distal ends of the respective arms 27, 28 are vertically movable respectively and at least the distal ends of the respective arms 27, 28 become movable in a direction approaching in a left/right direction to each other as ascending or descending of the distal ends of the respective arms 27, 28 is advanced, and a pair of hydraulic cylinders 29, 30 for operating the respective arms 27, 28 relative to the lower traveling body 2 respectively along movement routes D7, D8 specified by the retaining part 20 in every arm 27, 28 respectively. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dismantling machine used for various dismantling operations.

  Conventionally, for example, a dismantling machine as disclosed in Patent Document 1 has been used for dismantling work on dismantling objects such as scrap cars.

  The dismantling machine of Patent Document 1 includes a dismantling arm that is swingably provided on an upper swing body and includes a crusher at a tip portion, and a clamp arm that extends forward from the lower traveling body.

  The clamp arm includes a pair of left and right arms provided so as to move up and down and move in the left and right directions relative to the lower traveling body, a pair of swinging member operating cylinders that raise and lower these arms, and the arms in contact with the left and right. And a pair of refracting cylinders that are opened and closed.

And the clamp arm which concerns on patent document 1 falls on each dismantling object, the function which presses down a dismantling target object between the ground, and the said arm by opening and closing each arm to the left and right. The dismantling object is sandwiched between the arms, and the dismantling object held by the arms can be disassembled by the crusher of the dismantling arm.
JP 2001-150222 A

  However, the dismantling work machine of Patent Document 1 is configured so that each arm is a lower traveling body in order to embody the function of pressing the dismantling object between the ground and the function of sandwiching the dismantling object between the arms. On the other hand, the structure is complicated because it requires a mechanism for movably holding in the two directions of up and down and left and right.

  For this reason, the dismantling work machine of Patent Document 1 has a problem that not only the weight of the machine body becomes large and the work of transporting the machine body becomes difficult, but also the cost increases.

  In particular, the dismantling machine of Patent Document 1 requires a total of four cylinders, that is, a pair of swinging member working cylinders for raising and lowering each arm and a pair of refraction working cylinders for opening and closing each arm. Therefore, the influence of the number of these cylinders on the weight and cost of the fuselage was extremely large.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a dismantling work machine capable of realizing a function of pressing a dismantling object and a function of sandwiching at low cost while suppressing an increase in weight. It is said.

  In order to solve the above-described problems, the present invention provides a lower traveling body, an upper revolving body that is turnably mounted on the lower traveling body, and a crushing device provided at the top of the upper revolving body that can be raised and lowered. Is a demolition work machine having an attachment that is detachably mounted and a restraining device that restrains a dismantling object so as to be crushed by the crushing device, and the restraining device moves forward and backward from the lower traveling body. A pair of left and right arms extending in the direction and the lower traveling body, at least the tip of each arm can move up and down, and at least each of the arms as the tip of the arm rises or falls A holding portion for holding each arm so that the tip of the arm can move in a direction close to each other in the left-right direction, and the holding portion for each arm. Is along a defined movement path, to provide a demolition machine, characterized in that each of said arms and a pair of actuators that each operate with respect to the undercarriage.

  According to the present invention, since the tip of each arm can be moved up and down by the operating device, the dismantling object is pressed against the ground by lowering the tip of each arm from above the dismantling object. be able to.

  Furthermore, in the present invention, as each arm is raised or lowered, at least the tip of each arm can be brought close to the left and right directions, that is, each arm can be opened and closed by the raising and lowering operation of each arm. Therefore, the dismantling object can be sandwiched between the arms that open and close in this way.

  In the present invention, the above-described configuration is simply provided with a holding portion for holding each arm on the lower traveling body so that the arm can move along one movement path defined for each arm. An operation for sandwiching the dismantling object and an operation for pressing can be realized.

  Therefore, the dismantling work machine according to the present invention simplifies the configuration of the holding unit that holds each arm, unlike the conventional technique that requires a configuration for holding each arm so as to be movable in the vertical and horizontal directions. Therefore, an increase in the weight of the airframe can be suppressed and cost can be reduced.

  In particular, in the present invention, the above-described function of sandwiching the dismantling object and the function of pressing down can be realized only by providing one operating device for each arm corresponding to each of the moving paths. Unlike the conventional technique in which two arms are required for each arm in order to move in the left-right direction, a total of four cylinders, the configuration (actuating device) for operating each arm can be reduced to two.

  Therefore, according to the present invention, the function of pressing the dismantling object and the function of pinching can be realized at low cost while suppressing the increase in weight and maintaining the workability of transporting the machine body.

  Specifically, the holding portions are set so as to be close to each other in the left-right direction when the tip portions of the respective arms are raised, while being separated from each other in the left-right direction when the tip portions of the respective arms are lowered. The arms can be configured to be held so as to be movable along the movement paths.

  In this way, as the tip of each arm is lowered, each arm is opened in the left-right direction. Therefore, when pressing a short dismantling object against the ground, It can be pressed down and fixed securely.

  Further, when the crushing apparatus is configured to be able to hold the dismantling object, even if the dismantling object is short, the dismantling object is sandwiched between the arms after being lifted by the crushing apparatus. be able to.

  On the other hand, the holding portions are set so as to be separated from each other in the left-right direction when the tip portions of the respective arms are raised, and close to each other in the left-right direction when the tip portions of the respective arms are lowered. Each of the arms may be held so as to be movable along the movement path.

  In this way, as the tip of each arm is lowered, each arm is closed in the left-right direction, so that the dismantling object can be sandwiched at a position close to the ground, and the dismantling object placed on the ground Can be easily pinched, and even if the dismantling object placed in this way is short, it can be pinched reliably.

  Conversely, when pressing a tall dismantling object, the upper surface of the dismantling object is pressed at a high position, so the dismantling object is pressed over a wide range by each arm that is relatively open. be able to.

  Although not intended to limit the form of the holding portion, the holding portion supports the base end portion of each arm so as to extend in the left-right direction and to be rotatable around an inclined axis inclined with respect to the horizontal plane. It is preferable.

  According to this configuration, by rotating each arm with respect to the lower traveling body, the tip end portion of each arm moves up and down and also opens and closes in the left-right direction.

  When each arm is held around the tilt axis as described above, it is preferable that each tilt axis is set to an tilt angle at which the respective axis lines are symmetrical.

  In this way, each arm can be operated along a symmetrical movement path, so that the dismantling object is placed at the center of the left and right between the tips of each arm, and each arm is By simultaneously rotating, the dismantling object can be reliably sandwiched between the arms.

  Furthermore, a common drive source that drives each of the operating devices, and an adjustment unit that adjusts the power supplied from the drive source to the operating device so that the operation amounts of the arms are substantially the same. With this configuration, the movement amount of each arm can be made substantially the same while using a common drive source, so that the lifting and closing operations of each arm can be synchronized, and the dismantling object can be pressed. And the pinching operation can be performed more reliably.

  In the dismantling machine, a gripping surface capable of gripping the dismantling object between the arms is formed at the tip of each arm, and the gripping surface is an upper limit set in the movement path. It is preferable that the arms are arranged so as to face each other when they move to the position or the lower limit position and the tips of the arms approach each other.

  According to this configuration, since each arm has a gripping surface, each disposing object is disposed between the gripping surfaces, and the tips of the arms are brought close to each other so that the grips facing each other are arranged. The dismantling object can be securely held between the surfaces.

  Specifically, a grip portion that protrudes from the opposite inner side surface to the other arm side is provided at the tip of each arm, and the inner side surface of each grip portion is defined as the grip surface. The gripping surfaces can be configured to be in close contact with each other when the tips of the arms are moved close to the upper limit position or the lower limit position.

  In this way, since the dismantling object can be gripped between the inner side surfaces (gripping surfaces) of the gripping portions protruding inside each arm, the arm and the dismantling object are separated by a portion other than the gripping portion. Contact can be suppressed, and damage to each arm can be suppressed.

  In particular, in the configuration in which each arm is rotatable about the tilt axis, a gripping surface capable of gripping the dismantling object between the arms is formed at the tip of each arm, These gripping surfaces rotate substantially to the upper limit position or the lower limit position set in the movement path and are substantially parallel when the distal end portions of the arms approach each other, and when the distal end portions of the arms are separated from each other, It is preferable that the arms are mutually arranged so as to be opened toward the tip end side of each arm.

  In this way, the tip of each arm can be opened and closed between the state in which each gripping surface is substantially parallel and the state in which the gripping surface is open, so that the dismantling object is received between the arms. In some cases, the front opening can be widened, and the dismantling object can be reliably gripped between gripping surfaces that are substantially parallel to each other.

  Therefore, according to this configuration, it is possible to achieve both the ease of accepting the dismantling object between the arms and the ease of grasping the dismantling object thus accepted.

  Each of the arms is formed in a rod shape having a base portion extending in a direction substantially orthogonal to the axis of the tilt axis and a bent portion bent from the base portion, and each of the bent portions is configured so that each arm has the upper limit. The bending angles are defined so as to be substantially parallel to each other when moved to the position or the lower limit position, and each bending portion has a gripping member that protrudes from the opposing inner surface to the other arm side. It is particularly preferred that the inner surfaces of these gripping members are mounted as the gripping surfaces.

  According to this configuration, each of the grip surfaces can be formed on each arm by mounting the grip member on the bent portion of each arm while forming each arm in a bar shape.

  Here, since each bending portion is defined to have a bending angle so that each arm is substantially parallel when the arm is rotated to the upper limit position or the lower limit position, each bending portion has a substantially rectangular shape having a surface parallel to each bending portion. Each gripping surface can be formed by attaching a gripping member to each bent portion.

  Therefore, according to this configuration, since the configuration of the gripping part goods can be simplified, an increase in cost can be prevented even when the area of the gripping surface is large.

  According to the present invention, the function of pressing the dismantling object and the function of sandwiching can be realized at low cost.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing an overall configuration of a demolition work machine according to an embodiment of the present invention.

  Referring to FIG. 1, a dismantling work machine 1 includes a lower traveling body 2 having a crawler 2 a, an upper revolving body 3 that is turnably mounted on the lower traveling body 2, and can be raised and lowered on the upper revolving body 3. And the clamp 4 (restraint device) 5 provided on the lower traveling body 2. In the following description, the side where the clamp device 5 is provided in the advancing / retreating direction of the lower traveling body 2 is defined as the front, and the direction orthogonal to the advancing / retreating direction is defined as the left-right direction.

  The attachment 4 is mounted on the front part of the upper swing body 3 so as to be raised and lowered. The attachment 4 includes a boom 6 and an arm 7 connected to the distal end portion of the boom 6, and a crushing device 8 is detachably attached to the distal end portion of the arm 7.

  The boom 6 is raised and lowered by the expansion and contraction operation of the boom cylinder 9, the arm 7 is swung up and down by the expansion and contraction operation of the arm cylinder 10, and the crushing device 8 is vertically moved around the horizontal axis by the expansion and contraction operation of the cylinder 11. Rotate.

  The crushing device 8 includes a main body 12 that is detachably attached to the distal end of the arm 7, a bracket 14 that is connected to the main body 12 via a hydraulic motor (not shown), and an axis J 1 with respect to the bracket 14. A pair of crushing blades 15 and a crushing blade 16 supported so as to be rotatable around are provided.

  The crushing blades 15 and 16 are brought into contact with and separated from each other by the expansion and contraction operation of a hydraulic cylinder (not shown), so that each distal end portion is between an open position indicated by a two-dot chain line and a closed position indicated by a solid line. It opens and closes.

  The bracket 14 is rotatably connected to the main body 12 so that the crushing blades 15 and 16 move on the same circumference. Therefore, the opening / closing directions of the crushing blades 15 and 16 can be adjusted by driving a hydraulic motor (not shown).

  2 shows a lower frame of the lower traveling body in FIG. 1, (a) is a plan view, (b) is a front view, and (c) is a left side view.

  1 and 2, the lower traveling body 2 includes a lower frame 17 that supports the upper swing body 3.

  The lower frame 17 includes a pair of left and right crawler guides 18 that hold the crawler 2a, a mounting seat 19 that holds the upper swing body 3 between the crawler guides 18 so as to be rotatable, and a front portion of the mounting seat 19. The holding part 20 provided is provided.

  The holding | maintenance part 20 supports the clamp apparatus 5 mentioned later. Specifically, the holding portion 20 includes a pair of left and right brackets 21 and 22 extending forward from the mounting seat 19.

  As shown in FIG. 2B, the right bracket 21 is provided along an inclination direction D1 that goes upward as it goes to the left side, while the left bracket 22 is inclined upward as it goes to the right side. The inclination directions D1 and D2 are provided along the direction D2, and the left and right center positions of the mounting seat 19 are symmetric. In addition, since the structure of brackets 21 and 22 is common except this inclination direction D1 and D2, in the following description, the same code | symbol is attached | subjected and demonstrated about the common structure of each bracket 21 and 22. FIG.

  Each bracket 21, 22 includes a pair of left and right holding plates 23 and 24 that extend along the respective inclination directions D 1, D 2 and are parallel to each other with a predetermined interval.

  These holding plates 23 and 24 are formed with a pair of upper and lower through-holes 25 and 26 penetrating the both holding plates 23 and 24 in the normal direction thereof. An upper shaft (inclined shaft) J2 and a lower shaft J3 (see FIG. 3 respectively) for supporting the device 5 are inserted.

  FIG. 3 is an enlarged plan view showing the clamping device of FIG. 4 is an enlarged left side view of the clamping device of FIG. FIG. 5 is an enlarged front view showing the clamping device of FIG.

  3-5, the clamp device 5 includes a pair of left and right arms 27 and 28 extending forward from the holding portion 20, and a hydraulic cylinder 29 and a hydraulic cylinder 30 that operate the arms 27 and 28, respectively. A hydraulic circuit 31 (see FIG. 6) for driving the hydraulic cylinders 29 and 30 is provided.

  The base ends of the arms 27 and 28 are supported by the upper shaft J2 with respect to the brackets 21 and 22, respectively. The axis D3 and the axis D4 (see FIG. 5) of the upper shaft J2 extend in the normal direction of the holding plates 23, 24, that is, in the left-right direction, and are set to be inclined with respect to the horizontal plane.

  Specifically, the base end portions of the arms 27 and 28 are inserted through the upper shaft J2 together with the holding plates 23 and 24 while being inserted between the holding plates 23 and 24. Therefore, the arms 27 and 28 can rotate with respect to the lower frame 17 around the axes D3 and D4 of the upper axis J2 orthogonal to the inclination directions D1 and D2, respectively.

  That is, the arms 27 and 28 are held movably along the moving path D7 and the moving path D8 (see FIG. 5) set so as to be close to each other in the left-right direction as they are raised relative to the holding unit 20.

  On the other hand, the hydraulic cylinders 29 and 30 are pivotally supported with respect to the holding plates 23 and 24 in a state in which their base end portions (head side) are rotatable around the lower shaft J3, and their tip ends ( The rod side) is pivotally supported by a bracket 32 formed in the middle of each arm 27, 28 so as to be rotatable around the axis J4.

  The axis D5 and the axis D6 (see FIG. 5) of each lower shaft J3 are directed in a direction parallel to the axial directions D3 and D4 of each upper shaft J2, that is, in a direction extending in the left-right direction and inclined with respect to the horizontal plane. Is set.

  Therefore, when the hydraulic cylinders 29 and 30 expand and contract, the arms 27 and 28 rotate around the upper shaft J2.

  Specifically, when the hydraulic cylinders 29 and 30 are extended to a predetermined position, the arms 27 and 28 are raised to the upper limit position indicated by the solid line in FIG. When the 30 rods are shortened to a predetermined position, the arms 27 and 28 are lowered to a lower limit position indicated by a two-dot chain line in FIG. That is, the arms 27 and 28 are held by the holding unit 20 so as to be movable along the movement paths D7 and D8 between the upper limit position and the lower limit position.

  A grip 33 is provided at the tip of each of the arms 27 and 28 so as to protrude from the inner surface facing each other toward the other arm. When the arms 27 and 28 are set to the upper limit position, the inner side surfaces (gripping surfaces) 33a of the gripping portions 33 are in close contact with each other.

  FIG. 6 is a circuit diagram showing a hydraulic circuit for driving the hydraulic cylinder of FIG.

  The hydraulic circuit 31 supplies hydraulic oil from the hydraulic pump (drive source) 35 to the hydraulic cylinders 29 and 30 via the switching valve 36 and tanks the return oil from the hydraulic cylinders 29 and 30 via the switching valve 36. 37 is collected.

  Specifically, the hydraulic circuit 31 includes a first flow path 38 that communicates the switching valve 36 and the rod side of the hydraulic cylinders 29 and 30, and a second fluid passage that communicates the switching valve 36 and the head side of the hydraulic cylinders 29 and 30. A flow path 39 and a diversion valve (adjustment unit) 40 provided in the second flow path 39 are provided.

  The diversion valve 40 is configured so that the flow rate of hydraulic fluid supplied from the hydraulic pump 35 to the hydraulic cylinders 29 and 30 or the flow rate of hydraulic fluid recovered from the hydraulic cylinders 29 and 30 to the tank 37 is different for each hydraulic cylinder 29 and 30. Is provided with a restriction 40a provided at an appropriate position of the second flow path 39 so as to be equal to each other.

  As described above, the supply / discharge flow rate of the hydraulic oil to the hydraulic cylinders 29 and 30 is adjusted by the diversion valve 40, so that the expansion and contraction amounts of the hydraulic cylinders 29 and 30 are made substantially the same while using the common hydraulic pump 35. Since the movement amounts of the arms 27 and 28 can be made substantially the same, the raising and lowering and opening / closing operations of the arms 27 and 28 can be synchronized.

  When performing the demolition work using the demolition work machine 1 configured as described above, first, as shown in FIG. 1, the arms 27 and 28 are lowered from above on the demolition object S placed on the ground surface. Thus, the dismantling object S is pressed between the tips of the arms 27 and 28 and the ground surface.

  Subsequently, the crushing device 8 is caused to face between the arms 27 and 28 by causing the attachment 4 to fall over the pressed dismantling object S, and the crushing blades 15 and 16 of the crushing device 8 are to be dismantled. A part of the dismantling object S is torn off by holding a part of the object S and rotating the bracket 14 of the crushing device 8 as it is or raising the attachment 4.

  Further, in the dismantling work, there is a case in which a member to be recycled is separated from the dismantling object S, for example, a metal part is separated from a discarded electrical appliance.

  In such a case, first, as shown by a two-dot chain line in FIG. 3, the arms 27 and 28 are lowered to separate the gripping portions 33 of the arms 27 and 28 from each other. In this state, since the gripping surface 33a of each gripping part 33 is arranged to open forward toward the front, it is possible to make a large opening for receiving the dismantling object S.

  Next, as shown in FIG. 7, the arms 27, 28 are raised to hold the dismantling object S between the gripping surfaces 33 a, and the crushing device 8 faces the dismantling object S.

  Then, a member to be recycled among the dismantling object S is sandwiched by the crushing device 8 and the bracket 14 of the crushing device 8 is rotated as it is or the attachment 4 is erected to raise the attachment 4. To separate.

  As described above, according to the dismantling work machine 1, the distal ends of the arms 27 and 28 can be moved up and down by the hydraulic cylinders 29 and 30, so that the arms 27 and 28 are disposed on the dismantling object S from above. 1 is lowered, the dismantling object S can be pressed against the ground as shown in FIG.

  Further, in the dismantling work machine 1, as the arms 27 and 28 are raised, the distal ends of the arms 27 and 28 can be brought close to each other in the left-right direction. That is, since the arms 27 and 28 can be opened and closed by raising the arms 27 and 28, the dismantling object S can be sandwiched between the arms 27 and 28 that open and close in this way.

  In the demolition work machine 1, the arms 27 and 28 are moved so as to be movable along one movement path D7 and D8 (see FIG. 5) defined for the arms 27 and 28, respectively. With the configuration in which only the holding unit 20 that is held in the lower traveling body 2 is provided, the operation for sandwiching the dismantling object S and the operation for pressing can be realized.

  Therefore, in the dismantling work machine 1, unlike the conventional technique that requires a configuration for holding the arms 27 and 28 so as to be movable in the vertical and horizontal directions, the configuration of the holding unit 20 that holds the arms 27 and 28. Therefore, the increase in the weight of the airframe can be suppressed and the cost can be reduced.

  In particular, in the dismantling work machine 1, the above-described function of sandwiching the dismantling object S is pressed by simply providing one hydraulic cylinder 29, 30 for each arm 27, 28 corresponding to each movement path D7, D8. Therefore, the number of hydraulic cylinders 29 and 30 can be reduced compared to the case where two arms for moving each arm 27 and 28 in the vertical and horizontal directions are provided for each arm 27 and 28. Can be reduced.

  Therefore, according to the dismantling work machine 1, the function of pressing the dismantling object S and the function of sandwiching can be realized at low cost while suppressing the increase in weight and maintaining the workability of transporting the machine.

  Specifically, the holding portion 20 is adjacent to each other in the left-right direction when the tip portions of the arms 27 and 28 are raised, while the holding portion 20 is located in the left-right direction when the tip portions of the arms 27 and 28 are lowered. The arms 27 and 28 are held so as to be movable along the movement paths D7 and D8 (see FIG. 5) set so as to be separated from each other.

  For this reason, since the arms 27 and 28 are opened as the tips of the arms 27 and 28 are lowered, the dismantling object S is widened when pressing the short dismantling object S against the ground. It can be fixed securely by pressing it in the range.

  Even if the dismantling object S is short, the dismantling object S can be sandwiched between the arms 27 and 28 after the dismantling object S is lifted using the crushing device 8.

  In the above-described embodiment, the movement paths D7 and D8 set so that the arms 27 and 28 are closed when the tips of the arms 27 and 28 are raised are described. However, the arms 27 and 28 are lowered. It is also possible to set the movement path so that each arm 27, 28 closes when it is moved and opens when it is raised.

  That is, by moving the axes D3 and D4 shown in FIG. 5 that are the rotation axes of the arms 27 and 28 to the left and right, a moving path that closes the arms 27 and 28 as the arms 27 and 28 are lowered is set. be able to.

  In such a case, since the arms 27 and 28 close as the tips of the arms 27 and 28 are lowered, the dismantling object S can be sandwiched at a position close to the ground, and the dismantling placed on the ground Not only can the object S be easily sandwiched, but even if the dismantling object S placed in this way is short, it can be reliably pinched.

  On the other hand, when the tall dismantling object S is pressed, the upper surface of the dismantling object S is pressed at a high position, so that the arms 27 and 28 in a relatively open state dismantle extensively. The object S can be pressed down.

  In addition, as in the above-described embodiment, by setting the axis D3 of each upper shaft J2 to an inclination angle that is symmetric with respect to each other, the distal ends of the arms 27 and 28 are operated along a symmetric movement path D8. Therefore, the dismantling object S is arranged at the center of the left and right between the tip portions of the arms 27 and 28, and the arms 27 and 28 are simultaneously rotated, so that the arms 27 and 28 can be rotated simultaneously. Thus, the dismantling object S can be reliably sandwiched.

  And in the said embodiment, since the dismantling target object S can be hold | gripped between the inner surfaces 33a of the holding part 33 which protruded inside each arm 27 and 28, each arm other than the said holding part 33 is each arm. 27 and 28 and the dismantling object S can be prevented from contacting each other, and damage to the arms 27 and 28 can be suppressed.

  Furthermore, in the above-described embodiment, when the arms 27 and 28 are lowered, the gripping surfaces 33a are first opened forward, and when the arms 27 and 28 are lifted, the gripping surfaces 33a are Since they can be in close contact (arranged in parallel), when the dismantling object S is received between the arms 27 and 28, the front opening can be widened while being substantially parallel to each other. The dismantling object S can be reliably gripped between the gripping surfaces 33a.

  Therefore, according to the above-described embodiment, it is possible to achieve both the ease of accepting the dismantling object S between the arms 27 and 28 and the ease of grasping the dismantling object S thus accepted.

  In the above-described embodiment, the configuration including the arms 27 and 28 extending substantially straight has been described. However, as illustrated in FIG. 8, a configuration including bent arms 41 and 42 may be employed.

  FIG. 8 is a view corresponding to FIG. 3 of a demolition work machine according to another embodiment of the present invention. In addition, about the structure same as the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  Referring to FIG. 8, the arms 41 and 42 according to the present embodiment each include a rod-like main body 43 supported by the upper shaft J <b> 2 and a gripping member 44 attached to the distal end portion of the rod-like main body 43. Yes.

  The rod-shaped main body 43 includes a base portion 45 extending in a direction orthogonal to the axes D3 and D4 (see FIG. 5) of the upper shaft J2, and a bent portion 46 bent from the distal end portion of the base portion 45.

  The bent portion 46 is bent with respect to the base portion 45 so that the axes D9 are substantially parallel to each other when the arms 41 and 42 are raised to the upper limit position.

  Each gripping member 44 is a substantially rectangular block body, and is attached to the inner surface of each bent portion 46. In this mounted state, a plurality of recesses 44a are formed on the inner surface of each gripping member 44 so as to be recessed toward the respective arm 41, 42 to which it is mounted.

  The range of the inner surface of each gripping member 44 other than the recess 44a is a gripping surface 44b that is in close contact with each other (arranged in parallel) when the arms 41 and 42 are raised to the upper limit position. Yes.

  That is, in the arms 41 and 42 of the present embodiment, the dismantling object S can be gripped between the gripping surfaces 44b, and the gripping surfaces 44b between the concave portions 44a function as crushing blades. Thus, the dismantling object S sandwiched between the both gripping surfaces 44b can be crushed.

  In this embodiment, the gripping member 44 is attached to the bent portion 46 of the arms 41 and 42 while the arms 41 and 42 are formed in a rod shape, so that the gripping surfaces 44b are attached to the arms 41 and 42, respectively. Can be formed.

  Here, since the bending angles of the respective bent portions 46 are defined so as to be substantially parallel when the respective arms 41 and 42 are rotated to the upper limit position, the surfaces parallel to the axis D9 of the respective bent portions 46. Each gripping surface 46 can be formed by attaching a substantially rectangular gripping member 44 having a shape to each bent portion 46.

  Therefore, according to this embodiment, since the structure of the holding member 44 can be simplified, even if it is a case where the area of the holding surface 44b is taken large, the increase in cost can be prevented.

It is a side view which shows the whole structure of the demolition work machine which concerns on embodiment of this invention. The lower frame of the lower traveling body in FIG. 1 is shown, (a) is a plan view, (b) is a front view, and (c) is a left side view. It is a top view which expands and shows the clamp apparatus of FIG. It is a left view which expands and shows the clamp apparatus of FIG. It is a front view which expands and shows the clamp apparatus of FIG. It is a circuit diagram which shows the hydraulic circuit for driving the hydraulic cylinder of FIG. It is a figure which shows the state which is performing the demolition work using the demolition work machine of FIG. FIG. 4 is a view corresponding to FIG. 3 of a dismantling work machine according to another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Demolition work machine 2 Lower traveling body 3 Upper turning body 4 Attachment 5 Clamp device (restraint device)
8 Crushing device 17 Lower frame 20 Holding portion 25 Through hole 27, 28, 41, 42 Arm 29, 30 Hydraulic cylinder (actuating device)
33 Grip part 35 Hydraulic pump (drive source)
40 Diverging valve (adjusting part)
43 Bar-shaped body 44 Gripping member 44b Gripping surface 45 Base 46 Bending part D3, D4 Axis (rotation axis of arm)
D7, D8 Movement path J2 Upper axis (tilt axis)
S Demolition object

Claims (10)

A lower traveling body, an upper revolving body mounted on the lower traveling body so as to be capable of swiveling, an attachment provided on the upper revolving body so as to be able to undulate, and a crushing device detachably attached to a tip of the upper traveling body; A demolition work machine having a restraining device for restraining a dismantling object so as to be crushed by the device,
The restraining device is:
A pair of left and right arms extending in the advancing and retreating direction from the lower traveling body;
Provided in the lower traveling body, at least the tip of each arm can move up and down, and as the tip of each arm rises or descends, at least the tips of each arm move in the left-right direction. A holding part that holds each of the arms so as to be movable in the direction of approaching;
A demolition work machine comprising: a pair of actuating devices that actuate each of the arms with respect to the lower traveling body along a movement path defined for each of the arms by the holding portion.   The holding portions are set so as to be close to each other in the left-right direction when the tip portions of the respective arms are raised, while being separated from each other in the left-right direction when the tip portions of the respective arms are lowered. The demolition work machine according to claim 1, wherein each of the arms is held so as to be movable along a path.   The holding portions are set so as to be separated from each other in the left-right direction when the tip portions of the respective arms are raised, while being moved closer to each other in the left-right direction when the tip portions of the respective arms are lowered. The demolition work machine according to claim 1, wherein each of the arms is held so as to be movable along a path.   The said holding | maintenance part each supports the base end part of each arm so that it can rotate to the surroundings of the inclination axis | shaft inclined with respect to the horizontal surface while extending in the left-right direction. The dismantling machine according to item 1.   The demolition work machine according to claim 4, wherein each of the tilt axes is set to an tilt angle at which the respective axes are symmetrical.   A common drive source that drives each of the actuators, and an adjustment unit that adjusts the power supplied from the drive source to the actuators so that the operation amounts of the arms are substantially the same. The demolition work machine according to claim 5, wherein:   A gripping surface capable of gripping the dismantling object between the arms is formed at the tip of each arm, and these gripping surfaces move to an upper limit position or a lower limit position set in the movement path. The dismantling work machine according to any one of claims 1 to 6, wherein the dismantling work machines are arranged so as to face each other when the distal end portions of the arms approach each other.   At the tip of each arm, there are provided gripping portions that project from the opposing inner side surfaces to the other arm side, and the inner side surfaces of these gripping portions are the gripping surfaces, respectively, and the upper limit position Alternatively, the demolition work machine according to claim 7, wherein the gripping surfaces come into close contact with each other when the tip ends of the arms approach each other by moving to a lower limit position.   A gripping surface capable of gripping the dismantling object between the arms is formed at the tip of each arm, and these gripping surfaces rotate to the upper limit position or the lower limit position set in the movement path. The arms are arranged in parallel to each other so as to be parallel to each other when the tips of the arms approach each other and to be opened toward the tips of the arms when the tips of the arms are separated. The dismantling work machine according to any one of claims 4 to 6, wherein   Each of the arms is formed in a rod shape having a base portion extending in a direction substantially orthogonal to the axis of the tilt axis and a bent portion bent from the base portion, and each of the bent portions is configured so that the arms are in the upper limit position or The bending angles are defined so as to be substantially parallel to each other when moved to the lower limit position, and gripping members that protrude from the opposing inner side surfaces to the counterpart arm side are respectively attached to the respective bending portions. The disassembling work machine according to claim 9, wherein inner surfaces of the gripping members are the gripping surfaces.

Images