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Crushing apparatus

A crushing device and crushing technology, which is applied in transportation and packaging, solid separation, filtering, etc., can solve the problems of longer recovery time and oil pressure loss, so as to reduce fuel consumption, reduce oil pressure loss, and avoid unnecessary the effect of the operation

Inactive Publication Date: 2008-12-17
KOMATSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] As a result, the time to reach recovery will be longer
Also, oil pressure loss due to decompression of the oil pressure circuit will occur

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0084] [1] Overall composition

[0085] Next, specific embodiments of the crushing device of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 is a side view of the wood crushing device, figure 2 is its rear view.

[0086] This wood shredder is self-propelled, and includes a shredder 1 and a substantially cylindrical drum (rotary drum) 2 that rotates around an axis O2 to supply wood to the shredder 1 .

[0087] In addition, a drum receiving frame for attaching the drum 2 around the axis, a crusher 1, etc. are attached to a chassis (machine body) 3, and a running body 4 is attached to the chassis 3. In addition, a hopper (fixed hopper) 5 is attached to the upper opening of the drum 2 , and wood is supplied into the drum 2 by putting wood into the hopper 5 .

[0088] Crusher 1 as shown in Figure 1 and figure 2 As shown, it includes a rotating shaft rotating around an axis O1 extending in the traveling direction of the woo...

Embodiment approach 2

[0236] Next, Embodiment 2 of the present invention will be described. In addition, in the following description, the description of the same parts as those already described will be omitted or simplified.

[0237] In the crushing device according to Embodiment 1 described above, the first hydraulic motor 1A is a variable displacement motor capable of changing displacement only by its own pressure.

[0238] In contrast, in the crushing device according to Embodiment 2, as shown in FIG. 13 , a solenoid 202 is connected to the first hydraulic motor 201A. It is set according to the change of capacity.

[0239] When the operator sets the capacity setting switch of the first hydraulic motor 201A on the operation panel to ON, the first hydraulic motor 201A is set to the small capacity side by the solenoid 202, and when the capacity setting switch is set to When off, it is set to the large capacity side. Moreover, the switching of the capacity of the first hydraulic motor 201A acco...

Embodiment approach 3

[0246] Next, Embodiment 3 of the present invention will be described.

[0247] In the above-described second embodiment, the solenoid 202 provided on the first hydraulic motor 201A is provided for the operator to set the capacity of the first hydraulic motor 201A.

[0248] In contrast, in the crushing device according to Embodiment 3, as shown in FIG. 15 , the first hydraulic motor 301A is not a motor of the type that uses its own pressure to switch the capacity, but a motor that uses an attached solenoid. The 302 type of excitation to switch the capacity of the motor is different in this point.

[0249] As the trigger sensor for switching the capacity of the first hydraulic motor 301A by the solenoid 302, in this embodiment, the pressure sensor 303 is used in the pump line 161A, and the output of the pressure sensor 303 is controlled by the controller 30. process to energize the solenoid 302 .

[0250] The control structure in the controller 30 is like the functional block ...

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PUM

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Abstract

The invention provides a rotary crushing device. The rotary crushing device equipped with a hydraulic motor for driving the crusher is equipped with: a load detection mechanism for detecting the load state of the hydraulic motor, a load determination mechanism for determining the load state of the hydraulic motor, Then stop the supply of the crushed object by the supply device, and start the supply quantity control mechanism of the supply device to the crushed object when it is judged to be low load, and immediately change the The capacity of the capacity motor is changed to the motor capacity control mechanism on the large capacity side. Since the capacity of the hydraulic motor is switched to the large capacity side when the supply device stops, the wood in the crusher can be crushed at a high torque, the load can be reduced, and the original state can be restored in a short time.

Description

technical field [0001] The invention relates to a crushing device for crushing wood, rocks and other crushed objects. Background technique [0002] As a crushing device, there is a self-propelled crushing machine (for example, refer to Patent Document 1). [0003] As shown in FIG. 18, this crushing machine includes a rotary crusher (crushed body) 151, and a drum (rotary drum 152) that rotates separately from the axis to supply wood (crushed material) to the rotary crusher 151. . Furthermore, the drum 152, the crusher 151, and the like are attached to a body 153, and a traveling body 154 is attached to the body 153. In this way, wood (crushed material) is put into the drum 152 and crushed by the crusher 151 , and the crushed material is supplied below the crusher 151 and discharged to the outside by the conveying conveyor 155 . [0004] However, wood as objects to be crushed includes branches, trunks, roots, etc., and has various hardness and size, and is often not in a co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C25/00B02C18/22B02C18/24
CPCB02C18/2225B02C18/24B02C25/00B02C2018/164B02C21/02B07B1/00B27L11/06B65G19/00
Inventor 梅田博之中岛刚介吉田哲幸
Owner KOMATSU LTD
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