Internal spray system for telescopic cutting head and tunneling machine

Abstract

The utility model relates to the technical field of mining equipment parts, especially to an internal spraying system for telescopic cutting part and a heading machine. The internal spraying system for telescopic cutting part comprises: a water pump arranged in a cutting head shaft, the axis of the water pump is parallel to or coincides with the axis of the cutting head shaft, and the water pump is provided with a water inlet, a water outlet, an oil inlet and an oil outlet; the telescopic cylinder group is provided with a first water inlet channel, a first oil inlet channel and a first oil return channel; a sealing sleeve is clamped between the telescopic cylinder group and the cutting head shaft and is provided with a second water inlet channel, a second oil inlet channel and a second oil return channel; and the pipeline gap between the telescopic protection cylinder and the telescopic cylinder group is provided with a water inlet pipeline, an oil inlet pipeline and an oil return pipeline. The utility model utilizes the pipeline gap and the channels provided on the telescopic cylinder group and the sealing sleeve to realize that the axis of the water pump can be arranged parallel to or coincides with the axis of the cutting head shaft, improves the machining and assembly process and prolongs the service life of the cutting head shaft.

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