JP2004188305A - Crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crusher by which the comparatively larger object to be crushed can be crushed without enlarging the size of a working machine to be used as the base machine of the crusher and the working efficiency of which is improved. <P>SOLUTION: A crushing unit 6 is loaded on a frame of a traveling body 2 of the working machine 1 while a supporting unit 7 is interposed so that the unit 6 is projected forward from the body 2. A charging work tool 8 for throwing the object to be crushed in the unit 6 is fit to a working arm 5 fixed in the machine 1. The object to be crushed is thrown in the unit 6 by the tool 8 and crushed. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a crusher used for crushing cobblestone, concrete, various wastes, and the like.
[0002]
[Prior art]
A crusher configured by attaching a crusher attachment to an arm of a self-propelled working machine such as a hydraulic shovel is disclosed in, for example, Patent Document 1. In this type of crusher attachment, a crushing roller for crushing the crushed object is mounted in a bucket attached to the working arm, so that the crushing and crushing of the crushed object are relatively small and small. There is an advantage that one work machine can be used. The crusher attachment described in the above publication is provided with a sharp crushing blade around two rotating shafts arranged side by side, and crushes a crushed object sandwiched between a bucket inner wall and each of the rotating shafts. .
[0003]
[Patent Document 1]
JP, 10-159119, A [Problems to be solved by the invention]
Since the crushing machine attachment plays two roles of loading and crushing the crushed object in the bucket, the crushed object must be thrown into the crushing section between the crushing rollers in the attachment by the attachment itself to be crushed. In addition, there is a problem that it is difficult to load and crush relatively large tatami mats, for example, tatami mats, accumulated on the ground.
[0004]
In order to solve such problems, when the size of the crusher attachment is increased, the working arm for supporting the crusher and the working machine body also need to be increased, and a larger crusher attachment and It is also necessary to increase the size of the counterweight for balancing the weight with the work arm, which causes a problem that it is difficult to crush crushed building materials in narrow places in urban areas.
[0005]
In view of the above problems, the present invention provides a crusher capable of crushing a relatively large crushed object without increasing the size of a work machine used as a base machine, and improving work efficiency. The purpose is to do.
[0006]
[Means for Solving the Problems]
(1) The crusher of the present invention is provided with a crushing device by protruding forward from the traveling body via a supporting device on the traveling body frame of the working machine,
The work arm provided on the work machine is provided with a loading work tool for charging the crushed object into the crushing device.
[0007]
In this way, if the crushing device is attached to the traveling body frame, the crushing work can be performed with good workability by loading the crushed material into the crushing device by the loading work tool attached to the working arm, and the work efficiency can be improved. Is improved.
[0008]
Also, since the crushing device is mounted on the traveling body frame, the mounting position is low, and the projecting width of the crushing device from the working machine main body can be set small, so that compared to the case where the crushing device is attached to the tip of the working arm, Even if a relatively large crushing device is installed, the degree of impairing the stability of the working machine body is reduced. For this reason, a large-sized crusher can be configured using a small-sized work machine without increasing the size of the work-machine main body, and crushing work can be performed even in a narrow place in an urban area by inserting the crusher.
[0009]
In addition, since the crushing device can be enlarged, and the crushed material can be put into the crushing device with another loading work tool, even a large crushed material such as a tatami mat can be easily crushed. It becomes possible.
[0010]
(2) In the crusher according to the present invention, it is preferable that the support device has a driving device for vertically moving the crusher.
[0011]
If the crushing device is made movable up and down in this way, the crushing particles falling from the crushing device accumulate on the ground or in a hole, and the crushing device is raised as the top of the accumulated swarf is raised. A large amount of crushed debris can be accumulated at three places, and the crushing operation can be performed efficiently without frequently moving the crusher.
[0012]
(3) In the crusher of the present invention, it is preferable that the crusher has a soil discharging plate on the front side.
[0013]
As described above, by providing the earth discharging plate on the front surface of the housing, it is possible to efficiently level the accumulated dust when leveling.
[0014]
(4) In the crusher of the present invention, it is preferable that the width of the crushing device is set within the width of the traveling body.
[0015]
Thus, if the width of the housing is set within the width of the traveling body, it is possible to prevent the housing from colliding with an obstacle and being damaged during traveling or the like.
[0016]
(5) In the crusher of the present invention, the support device includes a crushing device mounting frame provided between the traveling body and the crushing device. Is preferably supported by a crushing device supporting frame provided between the side frames.
[0017]
With this configuration, it is not necessary to increase the size of the support device, economical achievement is achieved, and a relatively large crushing device can be mounted.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a side view showing an embodiment of a crusher according to the present invention. 1 is a work machine comprising a hydraulic excavator as a base machine, 2 is a traveling body thereof, 3 is a revolving device, 4 is a revolving body, 5 is a work arm mounted on the revolving body 4, 6 is a frame of the traveling body 2 A crushing device 8 which is vertically movable by a support device 7 having a structure to be described later is a working tool for loading the crushing device 6 on the crushing device 6 on the working arm 5, and in this embodiment, the loading working tool 8 Shows a case where is a hawk.
[0019]
The working arm 5 includes a boom 10 attached to the revolving unit 4 by a boom cylinder 9 so as to be able to move up and down, and an arm 12 attached to the tip of the boom 10 by an arm cylinder 11 so as to be vertically rotatable. A hydraulic cylinder 13 for rotating the work implement 8.
[0020]
As shown in FIGS. 2 and 3, the support device 7 of the crushing device 6 swings the swing frame 15 vertically attached to the traveling body frame 2 a by the pins 14 and swings the swing frame 15 up and down. And a hydraulic cylinder 16.
[0021]
The crushing device 6 of this example is suitable for crushing building waste such as tatami mats, and has a housing 17 attached to the tip of the swinging frame 15, and the housing 17 has a box shape with upper and lower openings. The housing 17 includes a front plate 19, a rear plate 20, and side plates 21 and 22. Bearings 23, 24 and 25, 26 are provided on the side plates 21, 22, respectively, and these two bearings support two crushing roller shafts 27, 28. Shredder-type crushing blades 29, 30 and spacers 31, 32 interposed between the crushing blades 29, 29, 30, 30 are fitted to the crushing roller shafts 27, 28, respectively. The crushing blades 29 and 30 are arranged alternately so as to fit into each other on the other side. Further, the front plate 19 and the rear plate 20 are provided with fixed blades 33 and 34 for preventing the crushed object from being fitted between the crushing blades 29 and 29 and between the crushing blades 30 and 30 and also performing a crushing action.
[0022]
An output shaft of a drive motor (a hydraulic motor or an electric motor) 35 is coupled to one of the crushing roller shafts 28, and the rotational force of the crushing roller shaft 28 is fitted on the crushing roller shafts 27 and 28 and meshes with each other. The crushing blades 29, 30 are transmitted to the crushing roller shaft 27 by the gears 36, 37, and are configured so that the crushing blades 29, 30 move inward (opposite sides) with each other to pinch the crushed material to be thrown in. On the front surface of the housing 17, there is provided an earth discharging plate 39 for moving crushed debris or breaking up accumulated debris.
[0023]
When crushing the crushed object using this crushing machine, the crushed object is gripped by the loading work tool 8 attached to the working arm 5 and put into the crushing device 6 to be crushed. The example of FIG. 2 shows an example in which a hole 40 is dug in the ground and crushed debris 41 is accumulated. A container may be put in the hole 40 and the crushed waste 41 may be put into the container.
[0024]
As described above, the crushing work can be performed with good workability by inputting the crushed material into the crushing device 6 by the loading work tool 8 provided on the work arm 5, thereby improving work efficiency.
[0025]
In addition, since the crushing device 6 is mounted on the traveling body frame 2a, the mounting position is low, and the width of the crushing device 6 protruding from the working machine body can be set small, so that the crushing device 6 is attached to the tip of the working arm 5. In comparison with the case, even if a relatively large crushing device is attached, the degree of impairing the stability of the working machine body is reduced. For this reason, a crusher can be configured using a small work machine without increasing the size of the work machine body, and crushing work can be performed with the crusher even in a narrow place in an urban area.
[0026]
Further, since the crushing device can be made larger, it is possible to easily crush even a large crushed object such as a tatami mat.
[0027]
The example of FIG. 4 is an example in which crushed debris 41 is accumulated on the ground. Here, since the crushing device 6 can be moved up and down, crushed debris falling from the crushing device 6 accumulates on the ground, and the crushing device 6 is raised as the top thereof rises. Can be accumulated, and the crushing operation can be performed efficiently without frequently moving the place of the crusher.
[0028]
Further, after the crushed debris accumulates to some extent, the crushing device is retracted once, and then moved forward, so that the crushed debris 41 is moved by the crusher and moved to another place by the earth discharging plate 39. The crushing work can be prevented from hindering the crushing operation, or can be accumulated at a position suitable for transportation by a truck or the like.
[0029]
FIG. 5 is a view showing another working mode of the crusher. The crushed chips falling from the crusher 6 are loaded on a truck, for example, by a conveyor 42 or accumulated in another place, that is, under the crusher 6. This is an example in which work is performed without accumulating crushed waste.
[0030]
In the present embodiment, as shown in FIG. 3, the width W1 of the crushing device 6 is set within the width W2 of the traveling body 2 (W2 ≧ W1). According to this structure, it is possible to reduce the degree to which the housing collides with an obstacle and breaks during traveling or the like.
[0031]
FIG. 6 shows another embodiment of the crusher of the present invention. The crushing device 6A has a center shaft 45 rotatably supported at the center of a housing 44, and a rotating plate 46 is fixedly attached to both ends of the center shaft 45. These rotating plates 46 are mounted with a plurality of shafts 47 rotating about a rotating shaft 45 as a center of rotation. A crushing roller 49 is rotatably (rotated) fitted to each shaft 47. The crushing roller 49 has a cylindrical shape and is provided with crushing projections 49a on its outer periphery. When the central shaft 45 is rotated by a hydraulic motor (not shown), the central shaft 45 rotates (revolves) around the central shaft 45.
[0032]
As shown in FIG. 6, the housing 44 is provided with a front wall 50 and a rear wall 51 so as to sandwich the assembly of the crushing rollers 49, respectively. Crushed bodies 52 are provided on the inner surfaces of these walls 50 and 51, respectively.
[0033]
Below the crushing roller 49 in the housing 44, a screen 53 made of a net or a grid is attached. The gap G between the outermost revolving locus of the crushing roller 49 and the inner surface of the screen 53 is formed so as to be gradually narrowed in the revolving direction R of the crushing roller 49 so that the crushed debris is forced downward from the hole of the screen 53. It is made to be able to be pressed and dropped, thereby improving the sieving efficiency.
[0034]
This crusher is suitable for crushing cobblestones, concrete blocks, and the like. The crusher moves to a place where there is a crushed object by self-propelled, and is supplied to a crushing device 6A by a loading work tool 8 attached to a tip of a work arm 5. Input and perform crushing work.
[0035]
At this time, the crushing roller 49 revolves around the revolution of the crushing roller 49, moves the object to be crushed in the housing 44 with the revolution, and is sandwiched between the crushing roller 49 and the crushed body 52 provided on the front wall 50 and the rear wall 51. The crushed object is rotated (rotated), and the projection 49a collides with the crushed object to promote crushing. Since the crushing roller 49 is rotatably fitted to the shaft 47, the crushing roller 49 is appropriately rotated in accordance with the movement of the crushed object during the crushing process, and an excessive force is applied to the crushing roller 49 or the crushed body 52. When acting, it can be released by rotation. Therefore, the damage of the crushing roller 49 and the crushing body 52 and the progress of wear are suppressed.
[0036]
The crushed debris that can pass through the holes of the screen 53 due to the crushing falls down from the screen 53 and is accumulated on a truck or an accumulation place via a conveyor (not shown). The crushed material that cannot pass through the screen 53 is crushed again between the crushing body 52 fixed to the rear wall 51 and the crushing roller 49, and the crushed chips partially fall, and the rest is fixed to the front wall 50 again. The crushed body 52 and the crushing roller 49 are crushed again. In this way, the crushed material that cannot pass through the screen 53 is crushed until it can pass, so that, for example, the reinforcing bar or the like does not pass while being long, and is crushed into crushed chips having the same maximum size.
[0037]
Further, a plurality of shafts 47 are provided concentrically between the pair of rotating plates 46, and the crushing rollers 49 are attached to the respective shafts 47, so that the rotating plates 45 are rotated to rotate the plurality of crushing rollers 49. Therefore, the configuration of the rotary drive device can be simplified without increasing the number of motors.
[0038]
FIGS. 7A and 7B show another example of the supporting device 7A of the crushing device 6. In this example, the crushing device supporting frame 55 is provided between the left and right side frames 2b and 2b of the traveling body frame 2a. Erection. Reference numeral 56 denotes a frame for mounting the crushing device 6. One end of the frame 56 is connected to and fixed to the center frame 2 c of the traveling body frame 2 a by a pin 57, and the front portion is supported by the crushing device supporting frame 55. Fix it.
[0039]
A bracket 59 provided on the back of the crushing device 6 is attached to the front of the crushing device mounting frame 56 so as to be rotatable around a pin 58. A hydraulic cylinder 61 is provided between the bracket 59 and the traveling body frame 2a or a portion fixed to the traveling body frame 2 for rotating the crushing device 6 to move the crushing device 6 up and down.
[0040]
By supporting the mounting frame 56 of the crushing device 6 with the crushing device supporting frame 55 provided between the side frames 2b, 2b in this way, it is not necessary to increase the size of the support device 7A, and economy is achieved. In addition, there is an advantage that a relatively large crushing device 6 can be attached.
[0041]
FIG. 8 shows another embodiment of the crusher according to the present invention, in which a work machine 1A having a wheel-type traveling body 2A is used as a base machine, and a bucket is used as a loading work tool 8A. A lifting magnet, a clamshell, or the like can be used as a loading tool in addition to a bucket and a hawk.
[0042]
In the above embodiment, the earth discharging plate 39 is provided directly on the outer front surface of the housings 17 and 44 constituting the crushing devices 6 and 6A. However, the strength of the housings 17 and 44 is taken into consideration. The housings 17 and 44 may have a double structure, or the swing frame 15 may be provided with a frame extending in front of the housings 17 and 44 bypassing the crushing devices 6 and 6A. It is also possible to prevent a load from directly acting on 6, 6A.
[0043]
【The invention's effect】
According to the present invention, since the crushing device is mounted on the traveling body frame and the loading work tool is mounted on the working arm, the crushing work is loaded with the loading work tool on the crushing device, so that the crushing operation can be performed with good workability. Work efficiency is improved.
[0044]
Also, since the crushing device is mounted on the traveling body frame, the mounting position is low, and the projecting width of the crushing device from the working machine main body can be set small, so that compared to the case where the crushing device is attached to the tip of the working arm, Even when a relatively large crushing device is installed, the degree of impairing the stability of the working machine body is reduced. For this reason, a crusher can be configured using a small work machine without increasing the size of the work machine body, and crushing work can be performed with the crusher even in a narrow place in an urban area.
[0045]
Further, since the crushing device can be made larger, it is possible to easily crush even a large crushed object such as a tatami mat.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional side view showing an embodiment of a crusher according to the present invention.
FIG. 2 is a side view showing a crushing device and a support device for the crushing device according to the present embodiment.
FIG. 3 is a plan view of FIG. 2;
FIG. 4 is a side view showing another example of the working mode of the present embodiment.
FIG. 5 is a side view showing another example of the working mode of the present embodiment.
FIG. 6 is a partial cross-sectional side view showing a crusher and a supporting device of another embodiment of the crusher of the present invention.
FIGS. 7A and 7B are a side view and a plan view showing another example of a support device for a crushing device according to the present invention. .
FIG. 8 is a side view showing another embodiment of the crusher according to the present invention.
[Explanation of symbols]
1A: Work machine, 2, 2A: Traveling body, 2a: Traveling body frame, 2b: Side frame, 2c: Center frame, 3: Revolving device, 4: Revolving body, 5: Working arm, 6, 6A: Crushing device , 7, 7A: Supporting device, 8, 8A: Loading tool, 9: Boom cylinder, 10: Boom, 11: Arm cylinder, 12: Arm, 13: Hydraulic cylinder, 15: Swing frame, 16: Hydraulic cylinder , 17; housing, 19: front plate, 20: rear plate, 21, 22: side plate, 23 to 26: bearing, 27, 28: crushing roller shaft, 29, 30: crushing blade, 31, 32: spacer, 33, 34: fixed blade, 35: drive motor, 36, 37: gear, 39: earth removal plate, 40: hole, 41: crushed waste, 42: conveyor, 44: housing, 45: center shaft, 46: rotary plate , 47: Shaft, 49: Crushing La, 50: front wall, 51: rear wall, 52: crushing body, 53: Screen, 55: crushing device supporting frame, 56: crushing device mounting frame, 58: Pin, 59: Bracket, 61: hydraulic cylinder

Claims (5)

A crushing device is provided by protruding forward from the traveling body via the supporting device on the traveling body frame of the working machine,
A crusher, wherein a work arm for loading the crushed object into the crusher is provided on a work arm provided in the work machine. The crusher according to claim 1,
The crusher according to claim 1, wherein the supporting device includes a driving device that moves the crushing device up and down. The crusher according to claim 2,
A crushing machine, comprising a dumping plate on the front side of the crushing device. The crusher according to any one of claims 1 to 3,
A crusher wherein the width of the crusher is set within the width of the traveling body. The crusher according to any one of claims 1 to 4,
The support device includes a crushing device mounting frame provided between the traveling body and the crushing device, and the crushing device supporting frame erected between the left and right side frames of the traveling body. A crusher characterized by being supported by a crusher.

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