External circulating lubricating and cooling system for coal mining machine and coal mining machine cutting device

Abstract

The invention relates to an external circulating lubricating and cooling system for a coal mining machine and a coal mining machine cutting device. The external circulating lubricating and cooling system comprises a plate cooler, a cycloid lubricating pump and an oil suction filter, and the oil suction filter is installed at the inlet end of an oil suction pipe of the cycloid lubricating pump and located at the bottom of an oil pool of the cutting device; an outlet end of an oil return pipe of the cycloid lubricating pump is connected with an oil duct inlet of the plate cooler, an oil duct outlet of the plate cooler is connected with the oil pool of the cutting device, and an inlet and an outlet of a water channel of the plate cooler are correspondingly connected with an outlet and an inlet of a cooling water jacket of a box body of the cutting device; and the cutting device comprises the lubricating and cooling system, the plate cooler is fixed to the outer side face of the coal wall side in the middle of the box body of the cutting device, the cycloid lubricating pump is installed on the box body of the cutting device, and a main shaft of the cycloid lubricating pump is coaxially connected with a third gear shaft set in the box body. The problems that a high-power-density cutting device is high in operation temperature and a transmission system is poor in lubrication can be solved, and the requirements for efficient lubrication and continuous cooling are met.

Description

technical field [0001] The invention relates to an external circulating lubrication and cooling system used on a coal mining machine and a coal mining machine cutting device equipped with the system, belonging to the technical field of coal mining machinery. Background technique [0002] In order to achieve high production and high efficiency in coal mines, the installed power of the shearer, especially the cutting power, must be large. At the same time, in order to meet the requirements of small mining height and coal loading, the volume of the cutting device must be as small as possible. We call this type of cutting device It is a high power density cutting device. The heat generated during the continuous operation of the transmission system of the high power density cutting device is difficult to be taken away by traditional cooling methods, so it is necessary to develop a special cooling system to control the temperature rise. In addition, the cavity of the cutting devi...

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Problems solved by technology

[0004] The present invention aims to provide an external circulating lubrication and cooling system for a coal shearer and a shearer cutting device, which can solve the problems of high operating te

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