A vacuum pump vibration damping device with adjustable stiffness

A vibration damping device and vacuum pump technology, which is applied in the direction of pump components, variable capacity pump components, non-rotational vibration suppression, etc., can solve problems such as difficult adjustment of stiffness, and achieve the effects of improved vibration damping and vibration absorption, small stiffness, and simple and convenient operation

Active Publication Date: 2021-10-15
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art and provide a vacuum pump damping device with adjustable stiffness to solve the technical problem that the stiffness of the vacuum pump damping structure is difficult to adjust in the prior art

Method used

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  • A vacuum pump vibration damping device with adjustable stiffness
  • A vacuum pump vibration damping device with adjustable stiffness
  • A vacuum pump vibration damping device with adjustable stiffness

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Effect test

Embodiment

[0047] The invention provides a vacuum pump damping device with adjustable stiffness, such as Figure 1 to Figure 8 As shown, it includes a pressing part 20 , a washer 30 and a first damping part 40 . Such as Figure 5 As shown, the pressing member 20 is designed as a bowl-shaped structure as a whole, and a plurality of claws 22 are uniformly arranged along the circumferential direction in the bottom of the bowl-shaped structure. A flange is provided on the mouth of the bowl-shaped structure, and three evenly distributed installation holes are opened on the flange.

[0048] Such as Figure 4 As shown, the first shock absorber 40 is designed as a ring structure as a whole, the surface area of ​​the ring structure matches the surface area of ​​the bottom of the bowl-shaped structure of the pressing member 20, and the first shock absorber 40 is connected to the end of the vacuum pump 50 motor. The surface areas in contact with each other are equal. Grooves 42 respectively cor...

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PUM

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Abstract

The invention discloses a vacuum pump vibration damping device with adjustable stiffness, relates to the technical field of vacuum pump booster systems, and solves the technical problem that the stiffness of the vacuum pump vibration damping structure is difficult to adjust. It includes a pressing piece connected to the bracket, a gasket arranged between the bracket and the pressing piece, and a first vibration damper. The first vibration damper is pressed on the vacuum pump through the connection between the pressing piece and the bracket. The first The degree of compression between the vibration damper and the vacuum pump is adjusted by the thickness of the gasket. The present invention can change the degree of compression of the first shock absorber by the pressing member by selecting the presence, quantity or thickness of the gasket, so as to achieve the purpose of adjusting the stiffness of the vibration damping structure of the vacuum pump, so that the vacuum pump can be adapted to different arrangements location and use environment, breaking the limitations of the location of the vacuum pump, and the installation and disassembly of the vacuum pump vibration damping structure can be realized by assembling and disassembling the pressing parts. The first vibration damping part does not need to bear the load of the vacuum pump, allowing the vacuum pump vibration damping structure Stiffness is set to be smaller.

Description

technical field [0001] The invention relates to the technical field of vacuum pump booster systems, in particular to a vacuum pump vibration damping device with adjustable stiffness. Background technique [0002] The electric vacuum pump is mainly driven by the motor through the pin shaft or the connecting rod mechanism to drive the blade, diaphragm or piston to move. During the working process, it is inevitable to generate large noise and vibration. If there is no good layout and structure, especially on pure electric vehicles, it is very easy to transmit noise and vibration to the cockpit, resulting in relatively large noise and vibration of the brake pedal and steering wheel, causing complaints from customers. [0003] Depending on the location of the vacuum pump, there will be different requirements for vibration damping stiffness. When the vacuum pump is arranged on the body part, the rigidity of the vacuum pump damping structure is required to be small, so as to redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00F04B39/14F16F15/02
CPCF04B39/0044F04B39/14F16F15/02
Inventor 谢佳萍解洪江邹星刘康宋瀚
Owner DONGFENG MOTOR CORP HUBEI
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