JP2006233572A - Crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crusher capable of executing both of cooperative work of an upper crushing device provided to a work attachment with a clamping arm provided to the front of a lower traveling body and single cutting work with the lower part, and also, capable of safely executing cutting work by suppressing lateral inclinations of a material to be crushed when cutting a long material to be crushed. <P>SOLUTION: The clamping arms 14, 15 are provided to both lateral sides of the front of the lower traveling body 1 constituting a base machine 3 so as to be capable of freely ascending/descending by rotational movement around an arm supporting shaft. A cutting tool 16, which cuts the material (A) to be crushed by being vertically opened/closed in a scissor type, is provided on the left side between the clamping arms on both sides. When the material (A) to be crushed is long, the material (A) to be crushed can be cut with the cutting tool 16 in a state that the material (A) to be crushed is placed and supported on the upper face of each clamping arm. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a crusher for crushing buildings and various wastes.

  Conventionally, as shown in Patent Document 1, as a crusher, an open / close type crushing device (attached to a crawler traveling type base machine having a boom and an arm attached thereto and provided at the tip of the work attachment ( Hereinafter, what crushes (crushes and cuts) a building or an automobile using an upper crushing device is known.

Moreover, in this known crusher, as means for crushing the material to be crushed more finely for recycling,
(B) As shown in Patent Document 1, a pair of left and right clamp arms is provided at the front part of the lower traveling body of the base machine, and the upper crushing apparatus holds the object to be crushed on the ground with the clamp arm. Things that can perform tearing work (hereinafter referred to as collaborative work),
(B) As disclosed in Patent Document 2, an open / close-type cutting tool is provided in place of the clamp arm at the front of the lower traveling body so that the object to be crushed at the lower part can be cut independently. It is.
Japanese Utility Model Sho 62-105024 JP 2002-89057 A

  However, according to the above-mentioned known technique (a), the collaborative work using the upper crushing device and the clamp arm is possible, but since the cutting work cannot be performed by the lower part alone, it is not suitable for fine processing of the object to be crushed. is there.

  On the other hand, according to the known technique (b), cutting work can be performed by itself at the lower part, but the collaborative work can fix the object to be crushed only at one place, so the fixing force is weak. Work efficiency becomes worse.

  In addition, when the object to be crushed is long, the object to be crushed is greatly inclined to the left and right in a grounded state on one side with the object to be crushed introduced into an open cutting tool as a cutting preparation stage. Therefore, when the cutting is started from this state, there is a problem that the object to be crushed greatly jumps and the surrounding crushed pieces are scattered.

  In the technique (b), the lower blade is provided with a receiving surface for stopping the rotation of the object to be crushed during cutting. On this receiving surface, it is possible to prevent the inclination of the long object to be crushed during the cutting preparation stage. Therefore, the problem that the object to be crushed greatly jumps at the start of cutting cannot be solved.

  Therefore, the present invention provides a crusher that can perform both a collaborative work with an upper crushing apparatus and a cutting work by itself at the lower part, and can suppress a jump at the start of cutting during a single cutting work. is there.

  According to the first aspect of the present invention, a base machine is configured such that an upper swing body is pivotably mounted on a lower traveling body, a work attachment that can be raised and lowered on the upper swing body of the base machine, and a crushing device at the tip of the work attachment Are provided on both the front left and right sides of the lower traveling body in such a state that clamp arms for pressing the object to be crushed to the ground can be moved up and down by the lifting drive means, and provided with a lower blade and an upper blade. A cutting tool of the type is provided so that it can be moved up and down integrally with the clamp arm between the clamp arms on both sides, and a long crushed object is cut by the cutting tool in a state where the crushed object is placed and supported on the upper surface of the clamp arm. It is comprised so that it can do.

  According to a second aspect of the present invention, in the configuration of the first aspect, the lower blade of the cutting tool is fixed to the clamp arm on one side.

  According to a third aspect of the present invention, in the configuration of the first or second aspect, the cabin is provided on one of the left and right sides of the upper swing body in the base machine, and the cutting tool is provided on the side of the left and right sides where the cabin is located. .

  According to a fourth aspect of the present invention, in the configuration according to any one of the first to third aspects, the cutting tool is provided on one of the left and right sides, the clamp arm on the opposite side to the side on which the cutting tool is provided, and the upper surface of the arm. The stopper which prevents the forward movement of the to-be-crushed object mounted and supported is provided.

  According to a fifth aspect of the present invention, in the structure according to any one of the first to fourth aspects, a gripping portion capable of gripping an object to be crushed is provided on the tip side of the lower blade and the upper blade constituting the cutting tool.

  According to a sixth aspect of the present invention, there is provided the blade according to any one of the first to fifth aspects, wherein a blade for grounding and performing a dozer action is provided on the lower surface of the proximal end portion of the clamp arm.

  A seventh aspect of the present invention is the structure according to any one of the first to sixth aspects, wherein an uneven spike is provided on the lower surface of the tip end portion of the clamp arm.

  According to the present invention, on both the front left and right sides of the lower traveling body of the base machine, a clamp arm for pressing the object to be crushed into the ground during the cooperative work is provided, and an open / close type cutting tool is provided between the both side clamp arms. The collaborative work can be efficiently performed in a state where the object to be crushed is pressed and fixed by the clamp arms on both sides, while the single cutting work at the lower part by the cutting tool is also possible.

  In addition, during the single cutting operation of a long object to be crushed, one side of the object to be crushed can be supported at a position higher than the ground by the clamp arm with the object to be crushed introduced into the cutting tool, so that the inclination of the object to be crushed can be reduced. can do. Therefore, it is possible to suppress the jumping of the object to be crushed at the start of cutting and to work safely.

  Also, as the clamp arm and cutting tool are moved up and down as a unit, if the object to be crushed is bent or if you want to perform cutting work at a high position avoiding other objects to be crushed around The cutting work position in the height direction can be arbitrarily adjusted.

  According to the invention of claim 2, when the cutting tool having a frame independent of both blades is mounted on the clamp arm in order to provide the lower blade of the cutting tool on the clamp arm on one side and also using this as the lower blade frame Compared to, the number of parts is small and the cost is low.

  According to the invention of claim 3, since the cutting tool is provided on the side of the left and right sides where the cabin is located (on the left side in a general machine), the operator in the cabin can easily see the cutting situation, and the work efficiency and safety are improved. Contribute to.

  According to the invention of claim 4, the cutting tool is provided on one side of the left and right sides, and the stopper for preventing the forward movement of the object to be crushed mounted on the upper surface of the arm is provided on the clamp arm opposite to the cutting tool. When cutting a long object to be crushed, the front slip on the side opposite to the side where the object to be crushed is cut can be suppressed and efficiently sandwiched and cut.

  According to the invention of claim 5, since the gripping portion capable of gripping the object to be crushed is provided on the tip side of the lower blade and the upper blade constituting the cutting tool, the collapsing operation and the sorting operation of the crushed pieces It becomes convenient for etc.

  According to the invention of claim 6, since the blade for performing the dozer action is provided on the lower surface of the proximal end portion of the clamp arm, the scattered object is removed from the periphery of the cutting tool by this blade, the object to be crushed is sandwiched in the cutting tool, and the cutting work Can be performed efficiently.

  According to the seventh aspect of the present invention, the anti-slip effect can be obtained by the spike provided on the lower surface of the tip end portion of the clamp arm during the cooperative operation.

1st Embodiment (refer FIGS. 1-4)
FIG. 1 shows the entire crusher according to the embodiment.

  In the figure, reference numeral 1 is a crawler type lower traveling body, and 2 is an upper revolving body mounted on the lower traveling body 1 so as to be capable of swiveling. A base machine 3 is constituted by these, and an upper revolving body of the base machine 3. The work attachment 4 is attached to 2.

  The work attachment 4 includes a boom 5 and an arm 6 attached to the tip of the boom 5, and an upper crushing device 7 is centered on a swing shaft 8 that is a horizontal axis in the left-right direction at the tip of the arm 6. It is attached so that it can rotate freely and can rotate around the central axis X.

  In the figure, 9 is a boom cylinder for raising and lowering the boom 5 (entire attachment), 10 is an arm cylinder for raising and lowering the arm 6, and 11 is a crushing device cylinder for rotating the upper crushing device 7.

  Further, the upper swing body 2 of the base machine 3 is provided with a cabin 12 for performing various operations including a crushing operation on the left and right sides (usually on the left side, hereinafter described in this example).

  On the other hand, a lower processing device 13 is provided in front of the lower traveling body 1 in the base machine 3. The configuration and operation of the lower processing apparatus 13 will be described in detail below with reference to FIGS.

  The lower processing device 13 is provided on the front portion of the lower traveling body 1 with a pair of clamp arms 14 and 15 provided in a front-facing manner with a space between the left and right sides, and between the clamp arms 14 and 15 on the same arm. The scissors-type cutting tool 16 that opens and closes in the vertical direction is used, and as shown by a two-dot chain line in FIG. 1, the object A grasped by the crushing device 7 is bent and stretched by the work attachment 4. Then, it is carried to the lower processing device 13, introduced into the opened cutting tool 16, and cut.

  In addition, conveyance of the to-be-crushed object A to this cutting tool 16 can also be performed with another conveyance machine.

  Both clamp arms 14 and 15 are formed in a square cylinder shape, and arm brackets 17 and 17 provided at rear ends of the clamp arms 14 and 15 respectively are arm support shafts 18 and 18 that are horizontal axes in the horizontal direction, and a lower processing device of the lower traveling body 1. It is attached to the attachment part 1a.

  As a result, both the clamp arms 14 and 15 can be rotated (lifted and lowered) in the vertical direction around the arm support shafts 18 and 18, and the lifting and lowering provided between the arm brackets 17 and 17 and the lower processing apparatus mounting portion 1 a is performed. The cylinders (hydraulic cylinders) 19 and 19 are driven up and down.

  In FIG. 3, reference numerals 20 and 20 denote connecting members that connect the clamp arms 14 and 15.

  The cutting tool 16 is fixed to the clamp arm 14 on the left side (the left side when viewed from the cabin 12, the same for the left and right directions described below), which is the side where the cabin 12 is provided, of both the clamp arms 14 and 15. A lower blade 21 and an upper blade 22 provided on the upper side of the lower blade 21 are provided.

  The upper blade 22 is provided on the lower surface of the upper blade frame 23, and the upper blade frame 23 is attached to an upper blade bracket 24 provided on the left clamp arm 14 by a horizontal upper blade support shaft 25.

  Further, the upper blade bracket 24 is provided with an open / close cylinder (hydraulic cylinder) 26 as upper blade drive means, and the upper blade frame 23, that is, the upper blade 22 is centered on the upper blade support shaft 25 by the expansion / contraction operation of the open / close cylinder 26. Rotate up and down.

  In this way, a cutting tool 16 that can be opened and closed in a vertical direction in a scissor manner is configured, and the object to be crushed sandwiched between the lower blade 21 and the upper blade 22 (tube materials are illustrated in FIGS. 1, 2 and 4) A. It is comprised so that it can cut | disconnect.

  In addition, gripping portions 21 a and 22 a that engage like a pliers are provided on the distal ends of the lower blade 21 and the upper blade 22 in order to grip fine crushed pieces and the like.

  In order to prevent slipping, the meshing surface of the gripping portion 22a of the upper blade 22 is formed in an uneven shape as shown in the figure. This uneven engagement surface may also be provided on the gripping portion 21 a of the lower blade 21.

  As other structures, as shown in FIGS. 2 to 4, a stopper 27 is provided on the upper surface of the distal end of the clamp arm 15 on the right side opposite to the side on which the cutting tool 16 is provided.

  The stopper 27 is formed as a protrusion having a recess for receiving the object A to be crushed on the back side, and when the object A is cut, the stopper 27 prevents forward movement of one end side (right side) of the object A to be crushed. The

  In addition, a sawtooth spike 28 is provided on the lower surface of the tip of each clamp arm 14, 15, and this spike 28 plays a role of preventing slipping against an object to be crushed during a collaborative crushing operation.

  According to this crusher, the object A to be crushed can be firmly pressed and fixed to the ground by the both-side clamp arms 14 and 15 of the lower processing device 13, and in this state, the upper object crusher 7 tears the object A to be crushed. Work can be done efficiently.

  On the other hand, since the cutting tool 16 is provided in the lower processing apparatus 13, the cutting tool 16 can also perform a single cutting operation at the lower part.

  Moreover, at the time of this single cutting operation, when the object A to be crushed is a long object such as a shape steel or a pipe, as compared with a case where only a cutting tool is provided as is known (when there is no clamp arm), Since one side of the object to be crushed A can be supported at a position higher than the ground by the clamp arm 15 in a state where the object to be crushed A is introduced into the cutting tool 16 as a cutting preparation stage, the inclination of the object to be crushed A can be reduced. .

  To describe this point in detail, when the lower processing device 13 performs the cutting operation, for example, the object A gripped by the crushing device 7 is carried to the lower processing device 13 as shown by a two-dot chain line in FIG. As shown in FIG. 4, the cutting tool 16 is opened (between the lower blade 21 and the upper blade 22).

  In this state, the object A is cut by operating the open / close cylinder 26 to rotate the upper blade 22 (closing the cutting tool 16).

  Here, when the object A to be crushed is a long object that is longer than the outer distance between the clamp arms 14 and 15 on both sides, the weight balance of the left and right is usually in a state where the object A is introduced into the cutting tool 16. Since it cannot be taken, it tilts to the left or right.

  FIG. 5 schematically shows this situation in a front view. In the known technique without the clamp arms 14 and 15, the object to be crushed A is not contacted with the right side as shown by the two-dot chain line in FIG. In order to stabilize, the inclination angle becomes large. For this reason, when cutting is started in this state, there is a problem that the crushed object A greatly jumps toward the horizontal posture due to the large inclination angle, and crushed pieces and the like in the vicinity scatter.

  On the other hand, according to this crusher, since the right side of the object A to be crushed is supported at a position higher than the upper surface of the right clamp arm 15, that is, the ground, the inclination of the object A to be crushed can be suppressed.

  In this case, in this embodiment, the crushing object A is inclined to the lower right because the lower blade 21 of the cutting tool 16 is provided so as to protrude slightly upward from the left clamp arm 14. , 15 is much smaller than the case without 15 (the posture is almost horizontal).

  Therefore, since the inclination of the object to be crushed A is small, the object to be crushed A is prevented from jumping up at the start of cutting, and can be operated safely.

  In addition to the above basic effects, this crusher (lower processing apparatus 13) can obtain the following effects.

  (i) Since the lower blade 21 of the cutting tool 16 is fixed to the left clamp arm 14 and only the upper blade 22 is rotated to cut the object A to be crushed, the lower blade 21 is also of a rotary type. During cutting, the cutting point of the object A to be crushed does not move up and down. For this reason, an efficient cutting action can be obtained stably. Further, by rotating only the upper blade 22 while the lower blade 21 is fixed, the driving force of the open / close cylinder 26 can be efficiently applied to the cutting tool 16 as a cutting force.

  (ii) Since the clamp arms 14 and 15 and the cutting tool 16 are lifted and lowered integrally, the cutting object A is bent at a high position while avoiding other objects to be crushed when the object to be crushed A is bent. If desired, the height position at which the cutting operation is performed can be arbitrarily adjusted.

  Further, during the collaborative work, the clamp arm 14, 15 is moved up and down so that the object A can be pressed and released easily.

  (iii) Since the lower blade 21 of the cutting tool 16 is provided on the left clamp arm 14 in a state where it is also used as the lower blade frame, a cutting tool having a frame independent of both blades is mounted on the clamp arm; In comparison, the number of parts is small and the cost is low.

  (iv) Since the cutting tool 16 is provided on the left side of the left and right sides where the cabin 12 is located, it is easy for the operator in the cabin to see the cutting situation, which contributes to improvement in work efficiency and safety.

  This crusher is equipped with a plurality of hydraulic pumps (not shown) as in the case of a hydraulic excavator and the like, and oil from each pump is used to operate the work attachment 4 (boom operation, arm operation, etc.) and the base machine 3. Sorted into actions (running, turning). Here, in order to increase the cutting ability (speed) of the lower processing device 13, it is desirable to adopt a configuration in which oil from the two pumps is joined and supplied to the open / close cylinder 26 of the cutting tool 16 at the time of cutting.

Other embodiments
(1) In the above basic embodiment, the lower blade 21 of the cutting tool 16 is provided on the left clamp arm 14 in a state where it is also used as the lower blade frame. However, as shown in FIG. May be provided on the frames 31 and 32 independent of the clamp arm 14 to constitute the cutting tool 16.

  In this case, the lower blade frame 31 may be fixed with respect to the clamp arm 14 or may be pivotably attached as a movable type. In the illustrated example, a fixed type is adopted, and the upper blade frame 32 is vertically rotated by an open / close cylinder 34 provided on the upper blade bracket 33. In FIG. 6, reference numerals 29a and 30a denote gripping portions.

  According to this configuration, the basic effect that both cooperative work and single cutting work at the lower part are possible can be obtained in the same manner as in the basic embodiment.

  FIG. 6 shows an example in which the positions of the lower blade 29 and the upper blade 30 are higher than those in the basic embodiment, but the both blades 29 and 30 are installed as low as possible between the clamp arms 14 and 15 on both sides. It is also possible to do. If it carries out like this, similarly to basic embodiment, when the to-be-crushed object A is long, the effect of restraining the inclination of the to-be-crushed object A small at the cutting preparation stage can also be ensured.

  (2) As shown in FIG. 6, a blade 35 that performs a dozer action may be provided between the base ends of the both side clamp arms 14 and 15. In this way, scattered objects can be excluded from the periphery of the cutting tool by the blade 35, and the object to be crushed into the cutting tool 16 can be efficiently cut.

  (3) In the above embodiment, the cutting tool 16 is provided on the left side. However, when the cabin 12 is provided on the right side, it may be provided on the right side. Alternatively, the cutting tool 16 may be provided on the side opposite to the cabin 12 or may be provided in the left and right intermediate part.

  (4) In the above embodiment, the clamp arms 14 and 15 are provided only on the left and right sides. However, the clamp arms may be provided at the left and right intermediate positions as long as they do not interfere with the cutting tool 16.

  (5) In the said embodiment, although the work attachment 4 was comprised by the boom 5 and the arm 6, you may comprise the multistage bending-extension-type work attachment by a multistage boom and arm.

1 is an overall side view of a crusher according to an embodiment of the present invention. It is an enlarged side view of the lower processing apparatus provided in the crusher. It is the same top view. It is a figure which expands and shows a part of lower processing apparatus further. It is a figure which shows a cutting condition typically by a front view. It is a side view of the lower processing apparatus of the crusher concerning another embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower traveling body 2 Upper revolving body 3 Base machine 4 Work attachment 7 Crushing device 13 Lower processing device 14,15 Clamp arm 16 Cutting tool 18 Arm spindle 19 Lifting cylinder as lifting drive means 21 Lower blade of cutting tool 22 Same upper blade 21a, 22a Holding part 23 Upper blade frame 25 Upper blade spindle 26 Opening / closing cylinder as upper blade driving means 27 Stopper 28 Spike 29 Lower blade 30 Upper blade 31 Lower blade frame 30a, 31a Holding part 32 Upper blade frame 34 Opening / closing cylinder 35 blade

Claims (7)

  In a crusher in which an upper swing body is pivotably mounted on a lower traveling body to form a base machine, a work attachment that can be raised and lowered on the upper swing body of the base machine, and a crusher provided at the tip of the work attachment, respectively. In addition, a clamp arm for pressing the object to be crushed to the ground is provided on both the front left and right sides of the lower traveling body in a state where it can be moved up and down by the lifting drive means, and an open / close-type cutting tool having a lower blade and an upper blade is provided on both sides. Provided so that it can be moved up and down integrally with the clamp arm between the clamp arms, and configured to be able to be cut with the above-mentioned cutting tool in a state where the object to be crushed is placed and supported on the upper surface of the clamp arm. A crusher characterized by.   2. The crusher according to claim 1, wherein the lower blade of the cutting tool is fixed to a clamp arm on one side.   The crusher according to claim 1 or 2, wherein a cabin is provided on one of the left and right sides of the upper swing body in the base machine, and a cutting tool is provided on the side of the left and right sides where the cabin is located.   The crusher according to any one of claims 1 to 3, wherein the cutting tool is provided on one of the left and right sides, and is placed on the upper surface of the arm on a clamp arm opposite to the side on which the cutting tool is provided. A crusher provided with a stopper for preventing a forward movement of a supported object to be crushed.   The crusher according to any one of claims 1 to 4, wherein a gripping part capable of gripping an object to be crushed is provided on a tip side of a lower blade and an upper blade constituting a cutting tool. Machine.   The crusher according to any one of claims 1 to 5, wherein a blade for grounding and performing a dozer action is provided on a lower surface of a proximal end portion of the clamp arm.   The crusher according to any one of claims 1 to 6, wherein an uneven spike is provided on the lower surface of the tip end portion of the clamp arm.

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