Water pump with long service life and high sealing performance and assembling method

Abstract

The invention provides a water pump with long service life and high sealing performance and an assembling method, and relates to the technical field of assembling of the water pump with high sealing performance. The water pump comprises a pump body support, a motor support, a motor, a coupler, a lead screw, a commutator, a piston and a cylinder body. The pump body support and the motor support arein butt joint. The motor is fixedly mounted on the motor support. The coupler is arranged in the motor support. The lead screw and an output shaft of the motor are coaxially arranged. One axial end of the lead screw stretches into the motor support and is in butt joint with the output shaft of the motor through the coupler. The piston is in butt joint with the other axial end of the lead screw through the commutator. The cylinder body sleeves the outer wall of the piston. The motor drives the lead screw to rotate through the coupler. Rotation of the lead screw is converted into axial transverse movement of the piston through the commutator. The problems that movement of a piston part of a water pump with high sealing performance is blocked, radial runout is large, the service life of thewater pump is short, and the sealing leak rate exceeds standards are solved, and the purposes that the assembling process is digitally detected, the problem about the performance of the water pump ischecked in time, the production efficiency is improved, and the development period is shortened are achieved.

Description

technical field [0001] The invention relates to the technical field of assembly of a high-tight water pump, in particular to a long-life high-tight water pump and an assembly method thereof. Background technique [0002] The high-seal water pump is an important equipment of the environmental control and life protection system of the space test module, and its performance affects the life safety of astronauts and the success or failure of the space test. The water pump is a general-purpose component for fluid transmission. This kind of high-seal and long-life water pump can be used for subsequent space missions such as deep space exploration and manned moon landing, and can be applied to important liquid transmission equipment on the ground. It has a good application prospect. and use value. [0003] A water pump is a mechanical device that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to incr...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, provide a long-life high-seal water pump precision assembly method, and solve the high-seal water pump piston parts stuck in motion, large radial runout, short service life of the water pump, and excessive seal leakage rate and other problems, realized the digital inspection of the assembly process, timely checked the performance problems of the pump, improved production efficiency, and shortened the development cycle

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