Diaphragm pump motor assembly front cover, diaphragm pump motor assembly and diaphragm pump

Abstract

The invention discloses a front cover of a membrane pump motor assembly, the membrane pump motor assembly and a membrane pump. The front cover of the membrane pump motor assembly comprises a front cover body and a compressing part; an annular positioning portion is arranged in the middle of the front cover body; the annular positioning portion and the bottom face of the front cover body jointly define a bearing chamber for containing a bearing; the bearing chamber is provided with an end port used for mounting the bearing; a through hole allowing a motor shaft to penetrate through is formed inthe bottom face of the bearing chamber; the compressing part is installed on the annular positioning portion and close to the end port; the compressing part comprises a base portion and a compressingboard movably connected with the base portion; the compressing board can move towards or away from the end port so as to have the first position and the second position; when the compressing board isat the first position, one end of the compressing board shields a part of the end port; and when the compressing board is at the second position, the compressing board gets away from the end port toexpose the whole end port. According to the technical scheme, rapid assembly and disassembly of the bearing can be achieved.

Description

technical field [0001] The invention relates to the technical field of diaphragm pumps, in particular to a front cover of a diaphragm pump motor assembly, a diaphragm pump motor assembly and a diaphragm pump. Background technique [0002] The motor assembly in the existing diaphragm pump generally includes a housing, a motor accommodated in the housing, a front cover matched with both ends of the housing, and a bearing arranged in the front cover and matched with the motor shaft , in actual production, the bearings are fixed in the prefabricated holes on the front cover by means of pressure plates and screws, so as to prevent the bearings from loosening during long-term movement and affect the performance of the diaphragm pump; the bearing installation structure and method are in the assembly process The process of fixing the pressure plate with screws is added, and the operation of loosening the screws is required during the disassembly process, which makes the bearing asse...

AI Technical Summary

Problems solved by technology

[0002] The motor assembly in the existing diaphragm pump generally includes a housing, a motor accommodated in the housing, a front cover matched with both ends of the housing, and a bearing arranged in the front cover and matched with the motor shaft , in actual production, the bearings are fixed in the prefabricated holes on the front cover by means of pressure plates and screws, so as to prevent the bearings from loosening during long-term movement and affect the performance of the diaphragm pump; the bearing installation structure and method are in the assembly process The process of fixing the pressure plate with screws is added, and the operation of loosening the screws is required during the disassembly process, which makes it inconvenient to assemble and disassemble the bearings and cannot be assembled and disassembled quickly

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