Hydraulic pin shaft dismounting system, hinging system, dismounting method and engineering machinery

Abstract

The invention discloses a hydraulic pin shaft dismounting system, a hinging system, a dismounting method and engineering machinery, the hydraulic pin shaft dismounting system comprises a telescopic device and two dismounting supports, and the telescopic device can complete telescopic motion in the horizontal direction; the two detachable supports are respectively and detachably arranged on the two pin shafts which are symmetrically arranged, one detachable support is detachably connected with the fixed part of the telescopic device, and the other detachable support is detachably connected with the telescopic part of the telescopic device. Each component is convenient to mount and dismount, a plurality of components can be freely combined, the flexibility is high, the dismounting force is large, and the pin shaft dismounting device is mainly used for dismounting rear suspension upper and lower pin shaft components of a large mining dump truck and a cargo compartment and frame connecting pin shaft component or dismounting other types of symmetrically mounted pin shafts, and is very convenient to use.

Description

technical field [0001] The invention relates to a portable hydraulic pin shaft disassembly system, belonging to the field of mining machinery, in particular to a hydraulic transmission system. Background technique [0002] Mining dump trucks are important material transportation equipment for large open-pit mines. The average annual operating hours are more than 6,500 hours, and the annual transportation of materials is more than 3 million tons. Its operational reliability has a great impact on the operating income of mining customers. Due to the large load capacity of the mine car, the oil and gas suspension is usually used as the shock absorption device. Each car uses two front suspension cylinders and two rear suspension cylinders. Usually, the service life of the rear suspension seal is about 6,000 hours. After the seal is damaged, the rear suspension cylinder needs to be replaced. Remove it and replace the seal; due to the high density and high hardness of materials in ...

AI Technical Summary

Problems solved by technology

The rear suspension is connected to the frame and the rear axle housing through four pins, and the cargo compartment is connected to the frame and the lift cylinder through four pins. The traditional pin removal method is to manually use copper rods to remove the pins each time. The pin shaft is smashed out of the installation hole, which is time-consuming and labor-intensive. Due to the limitation of the installation space and installation location, it is necessary to climb up to work, and the safety of the operation cannot be guaranteed. If the pin shaft is worn out, the disassembly work will be more difficult.

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