JP4609437B2 - Dismantling machine - Google Patents

Description

  The present invention relates to a demolition machine that performs various operations such as waste, stripping, and stripping of various wastes.

  Conventionally, as shown in Patent Document 1, a dismantling machine configured by diverting a hydraulic excavator is known.

  As shown in FIG. 8, the dismantling machine can travel and turn by a crawler type lower traveling body 1 and an upper revolving body 2 that is mounted on the lower traveling body 1 so as to be rotatable around a vertical axis O. A base machine A is configured, and an upper revolving body 2 of the base machine A is mounted with a retractable dismantling arm 3 that is used as a drilling attachment at the time of an excavator, while being clamped at the front of the lower traveling body 1 A device 4 is attached.

  A crushing device (also referred to as a crushing device) 5 that is opened and closed by a hydraulic cylinder is attached to the tip of the dismantling arm 3, and the disassembling object is fixed by the clamp device 4 and the crushing device 5 performs the ballasting and other dismantling operations.

In this known dismantling machine, as a device for stably grasping the object to be disassembled by the clamp device 4, the pair of left and right clamp arms constituting the clamp device 4 is configured in a folding manner, and the distal arm is always in a parallel state. It is configured to open and close.
Patent No. 2945237

  However, according to the above known technique, a parallel movement mechanism for translating the tip side arms of both clamp arms is required. Therefore, the structure becomes complicated, the cost is increased, the cost is increased, and the clamp device 4 is heavy. The bad effects such as becoming occurred.

  Therefore, the present invention provides a dismantling machine that can simply and inexpensively realize the weight of the clamping device and that can stably hold a dismantling object.

The invention according to claim 1, the upper swing structure is mounted pivotably on the lower traveling body is constructed based machine, the said upper rotating body, bending freely demolition arm provided with a crushing device to the tip, the lower a traveling member, clamping equipment with a closable pair of clamp arms, their respective undulating freely mounted around the proximal end side, by the disassembled arm in a state where the dismantled object was fixed with the clamping apparatus In the dismantling machine configured to dismantle, a first grip that is parallel to each other in a small opening state in which both the clamp arms are substantially closed as a gripping surface for grasping the object to be dismantled at the distal ends of the both clamp arms. and the surface, the second gripping surface formed parallel to each other in a large opening state is also a larger opening than that at and the small aperture state less than the maximum opening state, the first gripping surface is located distally Kuno It is obtained continuously formed shape.

According to a second aspect of the present invention, in the configuration of the first aspect, an inclined stress relief surface that is continuous with an obtuse angle with respect to the second gripping surface is provided on the proximal end side of the clamp arm of the second gripping surface. is there.

According to a third aspect of the present invention, in the configuration of the first or second aspect , a gripping member is detachably attached to the distal ends of the clamp arms, and a gripping surface is formed on the gripping member .

The invention according to claim 4, in the construction of claims 1 to 3, a single closing cylinder for opening and closing the two clamp arms, provided with between the base end portion of the clamper arm, the clamper arm, At the same time, a tuning link that opens and closes symmetrically with respect to the opening and closing center line passing through the center between the opening and closing fulcrums of both arms is provided between the clamp arms .

The invention of claim 5, in the construction of claims 1 to 4, the lower surface of the distal end of at least one of the clamping arms of the clamping apparatus, projecting a pressing member held down on the ground from the top of the demolition object, The lower surface of the pressing member is set to an angle that becomes horizontal when the clamp device is in the maximum raised state .

According to a sixth aspect of the present invention, there is provided a shovel base machine according to any one of the first to fifth aspects, wherein a dozer that can be raised and lowered and a dozer cylinder that raises and lowers the dozer are provided at a front portion of a crawler type lower traveling body. It is diverted as a base machine for a dismantling machine, and a clamping device is attached to a bracket for mounting a dozer provided on the lower traveling body, and the dozer cylinder is used as a lifting cylinder for raising and lowering the clamping device. It is provided in between .

  According to the present invention, the first gripping surfaces are parallel to each other in the small opening state of both clamp arms, and the second gripping surfaces are parallel to each other in the large opening state. If a large object is sandwiched between the first gripping surfaces in a small opening state and a thick one is sandwiched between the second gripping surfaces in a large opening state, at least two types of dismantling objects having different thicknesses The parallel gripping surface can be stably sandwiched by surface contact.

In this case , since the first gripping surfaces are parallel to each other with both clamp arms substantially closed, the thin plate-shaped dismantling object can be securely held.

  In addition, since it has two gripping surfaces that are continuous in a U-shape, it should be easy to fit either gripping surface if it is a dismantling object that can be deformed to some extent even in an open state other than the two large and small open states set. Thus, a wide range of dismantling objects can be grasped stably.

  In addition, since the gripping members are simply attached to the tip portions of both clamp arms, the structure is significantly simpler than that of the known technique. For this reason, the cost can be greatly reduced, the cost can be reduced, and the weight of the clamping device can be reduced. Moreover, since the structure is simple, there are few failures and durability is high.

According to the invention of claim 2, the second gripping surface clamp arm base end side of the, because providing the inclined stress relief surface continuous with an obtuse angle relative to the second gripping surface, sandwiching the second gripping surface by the pressure The stress generated on the base end side of this is released to the clamp arm side by this stress relief surface, and breakage of the gripping surface can be prevented.

According to the invention of claim 3 , since the gripping member having both gripping surfaces is detachably attached to both clamp arms, a plurality of types of gripping members having different angles formed by both gripping surfaces are prepared, and the dismantling object The most suitable gripping member can be selected and changed according to the shape and size.

According to the invention of claim 4 , since both clamp arms are configured to be opened / closed symmetrically by one cylinder and a tuned link, the number of cylinders is smaller than when both clamp arms are independently opened / closed by separate cylinders. The cost can be reduced by reducing. In addition, unlike the two-cylinder type, there is no possibility that both clamp arms will move asymmetrically due to poor synchronization of both cylinders.

According to the invention of claim 5 , since the lower surface of the pressing member that presses the dismantling object onto the ground from above is set at an angle that is horizontal in the maximum raising state of the clamp device, the dismantling object is pressed down and surely. Can be fixed to.

According to the invention of claim 6 , in the dismantling machine constructed by diverting the excavator, the bracket for mounting the dozer and the dozer cylinder can be used as they are as the bracket for mounting the clamping device and the lifting cylinder, so that the additional equipment is reduced. Can be made simpler and equipment costs can be reduced.

  An embodiment of the present invention will be described with reference to FIGS.

  The dismantling machine according to the embodiment is configured by diverting a hydraulic excavator in the same manner as the known technique shown in FIG.

  That is, a base machine B is constructed by mounting an upper turning body 22 on a crawler type lower traveling body 21 so as to be turnable around a vertical axis O. The upper turning body 22 of the base machine B is used as a drilling attachment at the time of a shovel. A flexible disassembling arm 23 to be used is mounted so as to be raised and lowered, and a clamp device 24 is attached to the front portion of the lower traveling body 1.

  A crushing device (also referred to as a crushing device) 25 that is opened and closed by a hydraulic cylinder is attached to the tip of the dismantling arm 23, and the crushing device is held in a state in which a dismantling object is sandwiched and fixed by a clamp device 24 or pressed from above to the ground. At 25, dismantling work is performed.

  As shown in FIG. 2 (illustration of the dismantling arm 23 is omitted) and FIGS. 3 to 6, the clamping device 24 includes a frame 26 that is attached to the lower traveling body 21 so as to be freely raised and lowered with the base end side as a fulcrum. A raising / lowering cylinder 27 for raising and lowering the frame 26; a pair of left and right clamp arms 28 and 29 whose base end side is pivotally attached to the distal end of the frame 26 about the vertical axis; Is configured by a single arm opening / closing cylinder (hydraulic cylinder) 30 and a tuning link 31 for synchronizing both clamp arms 28 and 29.

The tuning link 31 is attached between the projecting pieces 28a and 29a extending from the vicinity of the open / close fulcrums (vertical axes) 32 and 32 of the clamp arms 28 and 29. , 29 rotate (open / close) symmetrically with respect to the open / close center line X passing through the center between the open / close fulcrums 32, 32 simultaneously.

  Grip members 33, 33 are provided on the inner surfaces of the front ends of the clamp arms 28, 29, and the dismantling object is sandwiched and fixed by the grip members 33, 33.

  The gripping member 33 includes a first gripping surface 33a which is parallel to each other in a small opening state shown in FIG. 2 and FIG. 3 among two preset large and small opening states, a two-dot chain line in FIG. 2, and a solid line in FIG. The second gripping surfaces 33b that are parallel to each other in the large opening state shown in FIG.

  In this embodiment, a state in which both clamp arms 28 and 29 are substantially closed as shown in FIG. 3 is a small opening state, and a state in which both clamp arms 28 and 29 are parallel to the opening / closing center line X as shown by a solid line in FIG. Is set as a large opening state. The two-dot chain line in FIG. 4 indicates the maximum opening state of both clamp arms 28 and 29.

  According to this configuration, the angle formed by the gripping surfaces 33a and 33b is set based on two main dismantling objects, a thin one and a thick one, and the thin one (thin plate, etc.) is the first gripping surface in a small opening state. If a thick object (W in FIG. 4) is sandwiched between the second gripping surfaces 33b in a large opening state, the gripping surfaces 33a parallel to each other with respect to at least two types of dismantling objects having different thicknesses are assumed. , 33a or 33b, 33b can be stably sandwiched by surface contact.

  In addition, since it has two gripping surfaces 33a and 33b that are continuous in a U-shape, any of the gripping surfaces 33a and 33b can be disassembled if it can be deformed to some extent even in an opening state other than the two large and small opening states set. By making it easy to fit, it is possible to stably hold a wide range of dismantling objects.

  In addition, since the gripping member 33 is simply attached to the distal end portions of the clamp arms 28 and 29, the structure is remarkably simple as compared with the known technique. For this reason, the cost can be significantly reduced, the cost can be reduced, and the weight of the clamping device 24 can be reduced. Moreover, since the structure is simple, there are few failures and durability is high.

  Furthermore, since both clamp arms 28 and 29 are configured to be opened and closed symmetrically by one cylinder 30 and the tuning link 31, compared to the case where both clamp arms 28 and 29 are opened and closed independently by separate cylinders, The cost can be reduced by reducing the number of cylinders. In addition, unlike the two-cylinder type, there is no possibility that both clamp arms will move asymmetrically due to poor synchronization of both cylinders.

  On the other hand, an inclined stress relief surface 33c that is continuous with an obtuse angle with respect to the second gripping surface 33b is provided on the clamping arm proximal end side of the second gripping surface 33b of the gripping member 33. With this stress relief surface 33c, the stress generated on the proximal end side of the second gripping surface 33b by the clamping pressure is released to the clamp arm side, and damage to the gripping surface 33b can be prevented.

  The frame 26 of the clamp device 24 is attached to brackets 34, 34 to which a dozer for the excavator in the lower traveling body 21 is attached. Further, the raising / lowering cylinder 27 is used as the raising / lowering of the clamping device with the dozer cylinder for raising / lowering the dozer being attached between the lower traveling body 21 and the frame 26.

  On the other hand, a pulling tool 36 having a slit 35 for pulling out a rod body such as a nail or a bolt is provided on the top surface of the left end of the clamp arm 28, and both clamp arms 28 and 29 (one of them) A pressing member 37 is provided on the lower surface of the distal end of the tip end portion of the cutting member 37 to press the dismantling object onto the ground from above.

  The slit 35 of the extraction tool 36 is formed in a V-shape that widens in plan view. More specifically with reference to FIG. 5, the slit 35 has a shape in which the angle of forward expansion changes in three steps toward the distal end side at the minimum on the base end side, that is, three stages of grooves 35a, 35b, and 35c having different angles. Are formed in a continuous shape.

  With this slit shape, the three-stage grooves 35a, 35b, and 35c each handle a certain range with respect to the rods with heads of various diameters, so that it is possible to pull out the rods with a very wide diameter range. Moreover, since the overall length L of the slit 35 can be kept short compared with the case where the slit is formed by a single groove having a constant angle, the extraction tool 36 can be made compact and lightweight.

  As shown in the enlarged view of FIG. 6, the pressing member 37 has a lower surface (pressing surface) 37 a for pressing a dismantling object formed in a sawtooth shape.

  The holding surface 37a is inclined so that the clamp arms 28 and 29 are inclined downward in a horizontal state and horizontal in the maximum raised state of the clamp arms 28 and 29 (the state of the two-dot chain line in FIG. 6). Is set.

  In this way, since the pressing surface 37 is in horizontal contact with the dismantling object, the dismantling object whose upper surface is horizontal can be pressed down directly, and can be surely pressed and fixed without slipping and releasing the dismantling object.

Other Embodiments (1) In the above embodiment, the gripping member 33 is fixed to the tip of the clamp arms 28 and 29. However, as shown in FIG. 7 (illustrating the left clamp arm 28), the gripping member 33 is attached to the gripping member 33. A portion 38 may be provided, and the attachment portion 38 may be detachably attached to the clamp arm 28 (29) with bolts 39.

  In this way, a plurality of types of gripping members having different angles formed by the first and second gripping surfaces 33a and 33b are prepared, and the most suitable gripping member is selected according to the shape and size of the dismantling object. Can be changed.

  (2) In the above embodiment, the configuration is such that both clamp arms 28 and 29 are opened and closed in synchronization with one cylinder 30. However, both clamp arms 28 and 29 are individually opened and closed with two cylinders, as in the prior art. You may take the structure to make.

  (3) In the above-described embodiment, the dismantling machine configured by diverting the excavator base machine and the excavation attachment as they are to the base machine B and the dismantling arm 23 is illustrated, but the base machine diverts the excavator base machine and dismantles it. The arm 23 may be changed to another configuration different from the excavator attachment of the shovel.

  Further, as the hoisting cylinder 27 and the clamp device mounting bracket, a dedicated one may be attached instead of diverting the dozer cylinder and the dozer mounting bracket.

It is a whole side view of the demolition machine concerning the embodiment of the present invention. It is the same top view. It is an enlarged plan view of a clamp device. FIG. 4 is a view corresponding to FIG. 3 in a state where the clamp device is opened. It is a partially expanded plan view of the left clamp arm. It is an enlarged side view of a clamp arm. FIG. 6 is a view corresponding to FIG. 5 showing another embodiment of the present invention. It is a whole side view of a known demolition machine.

B base machine 21 lower traveling body 22 upper turning body 23 dismantling arm 24 clamping device 25 crushing device 26 frame of clamping device 27 hoisting cylinder 28,29 clamp arm 30 opening / closing cylinder 31 tuning link 32,32 opening / closing fulcrum 33 gripping member 33a first Grabbing surface 33b Second grabbing surface 33c Stress relief surface 34 Bracket for clamping device mounting 35 Pulling tool slit 35a, 35b, 35c Groove constituting slit 36 Pulling tool 37 Pressing member 37a Lower surface of pressing member 38 Mounting of gripping member Part 39 Bolt for removably attaching the gripping member

Claims (6)

Upper rotating body is mounted pivotably on the lower traveling body is constructed based machine, the said upper rotating body, bending freely demolition arm with a crushing device to tip, with the lower traveling body, an openable and closable clamping equipment having a pair of clamp arms, their respective undulating freely mounted around the proximal end side, the demolition object configured to dismantle by the demolition arm being fixed in the clamping device In the dismantling machine, as a gripping surface for gripping the dismantling object between the tip ends of both the clamp arms, a first gripping surface that is parallel to each other in a small opening state in which both the clamp arms are substantially closed, and a maximum opening state or less provided in and the small opening state second gripping surfaces parallel to each other in a large opening state in which a large aperture state than in the first gripping surface is continuously shaped rather positioned distally Dismantling machine, characterized in that. 2. The dismantling machine according to claim 1, wherein an inclined stress relief surface that is continuous with an obtuse angle with respect to the second gripping surface is provided on the clamp arm proximal end side of the second gripping surface . 3. A disassembling machine according to claim 1 , wherein a gripping member is detachably attached to the distal ends of the clamp arms, and a gripping surface is formed on the gripping member . Symmetric one closing cylinder for opening and closing the clamper arm, for both provided with between the base end portion of the clamp arm, the clamper arm, at the same time and closing the center line passing through the center between the opening and closing fulcrum of the arms The dismantling machine according to any one of claims 1 to 3, wherein a tuning link for opening and closing is provided between both clamp arms . A pressing member that presses the object to be disassembled onto the ground from above is projected on the lower surface of the tip of at least one clamp arm of the clamping device, and the lower surface of the pressing member is set at an angle that is horizontal when the clamping device is in the maximum raised state. demolition machine according to any one of claims 1 to 4, characterized in that the set. The excavator base machine equipped with a dozer that can be raised and lowered at the front of a crawler type lower traveling body and a dozer cylinder that raises and lowers the dozer is diverted as a base machine for a dismantling machine, and a dozer attached to the lower traveling body is installed. The clamp device is attached to the bracket for use, and the dozer cylinder is provided between the lower traveling body and the clamp device as an elevating cylinder for raising and lowering the clamp device. Demolition machine as described in.

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