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Diaphragm vacuum pump

A vacuum pump and diaphragm technology, applied in the direction of pumps, pump components, variable capacity pump components, etc., can solve the problems of increasing power, large space, increasing overall weight and volume, etc., and achieve the effect of reducing vibration

Pending Publication Date: 2021-05-04
北京桑翌实验仪器研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a structure relatively takes up more space, increases the overall weight and volume of the pump, and also increases the power required for pump operation

Method used

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  • Diaphragm vacuum pump
  • Diaphragm vacuum pump
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Embodiment Construction

[0024] The diaphragm vacuum pump disclosed in the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become apparent from the following detailed description and claims. It should be noted that all the drawings are in very simplified form and use imprecise ratios, which are only used for the purpose of conveniently and clearly assisting in describing the embodiments of the present invention.

[0025] With reference to the accompanying drawings, figure 1 with figure 2 A diaphragm vacuum pump according to the present disclosure is shown, comprising a drive motor 1 , a main shaft 2 connected to the output shaft of the drive motor 1 , and one or more pump head groups 3 . For example, a diaphragm vacuum pump may comprise two pump head sets 3 .

[0026] The drive motor 1 can be an AC single-phase asynchronous motor, a variable frequency motor ...

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Abstract

The present disclosure describes a diaphragm vacuum pump. The diaphragm vacuum pump comprises a main shaft and one or a plurality of pump head groups; the main shaft is used for connection to an output shaft of a drive motor, One or more pump head groups; each pump head group comprises four pump heads which are uniformly spaced around a longitudinal central axis in a plane perpendicular to the longitudinal central axis of the main shaft, the distances between all the pump heads and the longitudinal central axis of the main shaft are equal, a pump cavity is formed in each pump head, a diaphragm is arranged in each pump cavity, the diaphragm is connected to the main shaft through an eccentric crank, and the rotating motion of the main shaft drives the diaphragm to do reciprocating motion.

Description

technical field [0001] The present disclosure relates to a diaphragm vacuum pump. Background technique [0002] The basic principle of the diaphragm vacuum pump is to use the motor to drive the diaphragm to reciprocate in the pump chamber through a mechanical mechanism, and use the one-way valves on the intake side and exhaust side of the pump chamber to realize the gas delivery process under low pressure, so as to achieve the purpose of forming a vacuum. [0003] The simplest diaphragm vacuum pump uses a motor to drive a diaphragm pump head unit. The main shaft of the motor rotates through an eccentric cam to drive the crank that is installed on the cam through the bearing to reciprocate. The end of the crank is generally installed in the center of a diaphragm, and the periphery of the diaphragm is compressed and sealed with the pump head above the diaphragm. A pump chamber is formed, and the air inlet chamber and the air outlet chamber are respectively connected to the pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B37/14F04B45/027F04B39/00F04B39/12
CPCF04B37/14F04B39/00F04B39/0027F04B39/0094F04B39/123F04B45/027F04B45/043
Inventor 张成祥
Owner 北京桑翌实验仪器研究所