Pick holder with spray for mining machinery

Abstract

The invention relates to a pick holder with spray for mining machinery. The pick holder comprises a pick holder body, a pick sleeve and a nozzle, wherein the pick sleeve is arranged in an inner hole of the pick holder body in an interference fit mode; one circle of annular water passing groove and two annular sealing ring grooves are formed in the hole wall of the area, matched with the pick sleeve, of the inner hole, the annular water passing groove is located between the two annular sealing ring grooves, and sealing rings are arranged in the sealing ring grooves; a front water channel and arear water channel are arranged in front of and behind the inner hole in the pick holder body respectively, and the front water channel, the annular water passing groove and the rear water channel sequentially communicate; and an inlet section of the front water channel is provided with a water groove with a downward opening, the water groove is located on the mounting bottom face of the pick holder body, the nozzle is arranged at an outlet of the rear water channel, and an outlet of the nozzle faces the pick tip of a to-be-arranged pick in the pick sleeve. The pick holder with spray for the mining machinery is remarkable in cooling and dust falling effect, the nozzle is not prone to be blocked, the space for arranging a spraying system on a roller body can be saved, and the number of arranged pick holders is increased, so that the cutting capacity of a roller is improved.

Description

technical field [0001] The invention relates to a pick tooth seat with a spray structure, which can be used on cutting devices of various mining equipment including coal shearer drums. Background technique [0002] Taking the coal shearer drum as an example, the tooth seat is an important part welded on the drum body for installing the pick to realize coal cutting. There are two types of existing tooth seats without spray and with front spray. When using the tooth seat without spray, it is necessary to arrange a nozzle for each tooth seat on the blade of the drum body. The spray water is sprayed from the nozzle to the The tooth tip of the pick is used to cool down the temperature and reduce dust. This kind of tooth seat is the most common. The disadvantage is that it needs to occupy a large layout area, so the number of tooth seats that can be fixed on the drum body is small. When the adapter with front spray is used, the spray water is sprayed from the front side of the pi...

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