Crushing apparatus

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...

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