Double-shaft shearing type crusher

Abstract

The invention relates to a crusher and aims at providing a double-shaft shearing type crusher which is wide in speed adjusting range, large in torque, low in whole machine mass and good in heat dissipation performance. The double-shaft shearing type crusher comprises a shell, two cutter shafts arranged in the shell, a discharging door arranged on the shell and a hydraulic system. The hydraulic system comprises two variable pump-constant displacement motor closed type hydraulic systems, a gear pump-hydraulic oil cylinder subsystem, a cooling system and a hydraulic oil tank. The variable pump-constant displacement motor closed type hydraulic systems drive the two cutter shafts to rotate, the gear pump-hydraulic oil cylinder subsystem drives the discharging door to move, and the temperature of hydraulic oil is reduced through the cooling system. The volume of the hydraulic oil tank is large, oil supply of the system is guaranteed, and meanwhile the hydraulic oil can be cooled through the hydraulic oil tank.

Description

technical field [0001] The invention relates to a crusher, in particular to a double-shaft shearing crusher. Background technique [0002] Shear crusher, also known as shredder, is the most commonly used crusher in the solid waste treatment industry. Shear crusher mainly relies on the principle of "shear and cut" to complete the process of crushing solid waste. Shear crusher The machine can disassemble large solid waste into pieces with a diameter of less than 100mm, and is widely used in the crushing of waste plastics, waste rubber, wood, domestic garbage and other large-volume waste. The main structure of the shearing crusher is composed of a knife shaft, which is driven by a motor to cut, squeeze, and tear through the knife to reduce the size of the material. [0003] In the actual use of the shearing crusher in the prior art, due to the complex composition of the crushed materials, sometimes some high-strength materials cannot be crushed, so it is usually necessary to b...

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Problems solved by technology

[0003] In the actual use of the shearing crusher in the prior art, due to the complex composition of the crushed materials, sometimes some high-strength materials cannot be crushed, so it is usually necessary to be equipped with an electric motor with a larger rated power to complete the crushing work. Just cause the power of the whole machine to be high, the cost is higher, in addition also need to be equipped with the speed reducer, increased the total weight of the whole machine

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