Overturning hydraulic oil cylinder for automobile cab

Abstract

The overturning hydraulic oil cylinder for the automobile cab comprises an oil cylinder body, buffering mechanisms, a locking mechanism, an embedded part and a sleeving ring, the left end and the right end of the oil cylinder body are connected with the buffering mechanisms in a clamped mode, the upper ends of the buffering mechanisms are connected in a locked mode through the embedded part, and the lower ends of the buffering mechanisms are connected in a locked mode through the locking mechanism. And a sleeving ring is mounted at the upper end of the oil cylinder body. The problems that due to the fact that the weight of an automobile cab is heavy, when the overturned cab is driven by a hydraulic oil cylinder to fall back, the descending speed is difficult to control, and when the descending speed is high, an oil pipe possibly explodes accidentally are solved, the oil cylinder loses the lifting effect, and then the cab falls down due to the dead weight; when the upper end of the oil cylinder damages the lower end of the cab, the safety of a maintainer below the cab cannot be guaranteed, the oil cylinder is easy to bend and deform after being lifted for a long time, and a piston assembly cannot smoothly stretch out and draw back.

Description

technical field [0001] The invention relates to the technical field of automobile cab overturning, in particular to an overturning hydraulic oil cylinder for an automobile cab. Background technique [0002] The application of medium and heavy trucks in daily life is becoming more and more common. At present, the cabs of medium and heavy trucks in my country have been flattened. In order to facilitate the maintenance of the engine, it is required that the cab can be turned forward to a certain angle. Because the cabs of medium and heavy trucks are too heavy, it is impossible to turn over the cab by manpower alone. The turning device must be used to realize the turning of the cab. At present, the empty turning device for medium and heavy trucks mainly uses hydraulic cylinders to lift and turn over. However, The existing hydraulic cylinders may have the following problems during operation: [0003] 1. Due to the heavy weight of the car cab, when the overturned cab is driven do...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the heavy weight of the car cab, when the overturned cab is driven down by the hydraulic cylinder, its descending speed is difficult to control. When the descending speed is fast, the oil pipe may burst accidentally, making the oil cylinder lose the effect of lifting , the cab will then fall under its own weight, and the upper end of the oil cylinder will damage the lower end of the cab, and the maintenance personnel under the cab will not be able to get safety guarantees;

[0004] 2. Long-term lifting is also prone to bending and deformation of the oil cylinder, resulting in the piston assembly not being able to stretch smoothly

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