Pump box for coal-mining machine

• Main Author: QINGAN NAN
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2004
• Edition: 7
• Subjects: BLASTING; EARTH DRILLING; FIXED CONSTRUCTIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MINING; MINING OR QUARRYING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model discloses a pump box for coal-mining machine, which is characterized in that the dry chamber is separated with the wet chamber. A pump valve assembly and other valves are disposed in the dry chamber. The dry chamber is connected with the wet chamber via a pipeline and a filter unit. An electric engine chamber and a gear cluster chamber are arranged in a pump box. The electric engine chamber is provided with an electric engine therein, and the gear cluster chamber is provided with an electric engine wheel gear, an idle gear and a main pump wheel gear therein. Driven by the electric engine via the electric engine wheel, the idle gear and the main pump wheel gear, the main pump sucks the oil from the wet chamber via the filter unit and the pipeline. The oil discharge motion drives a main motor arranged in the pull box via the pipeline to realize the movement of the coal-mining machine. By alternating the arrangement that the pump valve assembly and the oil pool are positioned in one chamber, the pump box has the arrangement that the pump, the valve and the control member are independently positioned in the dry chamber, which is easy to maintenance and inspection, and effectively prevents external pollution to the hydraulic oil to keep the cleanness of the hydraulic oil. 本实用新型公开了一种新型采煤机泵箱，其特点为"干、湿腔"分离。干腔内设有泵阀组合体以及其他阀，干腔通过管路和过滤装置与湿腔连接。在泵箱内还设有电机腔以及齿轮组腔，电机腔内设有电机，齿轮组腔内设有电机齿轮、惰轮和主泵齿轮，当电机通过电机齿轮、惰轮和主泵齿轮带动主泵工作时，主泵通过过滤装置和管路从湿腔内吸油，而排油通过管路带动牵引箱中的主马达工作，实现采煤机的行走。该泵箱由于改变了传统的泵阀组与油池共腔的方式，使泵箱中泵、阀以及控制元件独立于干腔中，给维护和检修带来了方便，也有效地防止了外界对液压油的污染，保持了液压油的清洁。