Grab automatic lubrication structure

Abstract

The invention provides an automatic lubricating structure of grab buckets. The automatic lubricating structure comprises two limiting blocks arranged on the back face of the grab buckets in a paired mode, and further comprises springs, pistons, one-way valves, an oil tank, oil inlet hoses and oil outlet hoses. A cavity is formed in each limiting block, the pistons are put into the cavities, and the springs are arranged between the pistons and the bottom walls of the cavities of the limiting blocks. At least one section of a piston rod of each piston is exposed out of the corresponding cavity. The oil tank and the cavities of the limiting blocks are connected through the oil inlet hoses, and the one way valves are arranged at the ends, close to the oil tank, of the oil inlet hoses. Oil outlet channels are formed in the bottom walls of the limiting blocks and communicated with oil outlet connectors on the outer sides of the bottom walls of the limiting blocks, and the oil outlet connectors of the limiting blocks are connected with oil nozzles of all hinge shafts through the oil outlet hoses. By means of the automatic lubricating structure, it is ensured that the hinge shafts of the grab buckets can be lubricated constantly, the influence of the severe environment is avoided, and oil holes of the hinge shafts cannot be blocked by dust particles.

Description

technical field [0001] The invention relates to a grab bucket, in particular to a grab bucket with automatic lubricating effect. Background technique [0002] Due to the high working frequency of the grab bucket, the hinge shaft is severely worn and must be refueled frequently, which will not only reduce the work efficiency, but also increase the labor intensity and risks of the workers. It is very inconvenient to refuel the grab bucket hinge shaft. [0003] Grab buckets usually work in very harsh environments such as docks and garbage dumps. There is a lot of wind and sand near the docks, and the dust particles will block the oil hole of the hinge shaft, so that it cannot be filled with oil. Contents of the invention [0004] Aiming at the deficiencies in the prior art, the present invention provides an automatic lubricating structure for a grab bucket, which can ensure that the hinge shaft can achieve the effect of constant lubrication, and can completely seal the hinge ...

AI Technical Summary

Problems solved by technology

[0002] Due to the high working frequency of the grab bucket, the hinge shaft is severely worn, and oil must be refueled frequently, which will not only reduce the work efficiency, but also increase the labor intensity and risks of the workers. It is very inconvenient to refuel the hinge shaft of the grab bucket now.

[0003] Grab buckets usually work in very harsh environments such as docks and garbage dumps. There is a lot of wind and sand near the docks, and the dust particles will block the oil hole of the hinge shaft, so that it cannot be filled with oil.

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