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A damping rubber buffer

A technology of damping rubber and buffers, which is applied in the direction of elastic shock absorbers, etc., can solve the problems of high machining accuracy of air buffers, difficulty in controlling the amount of oil added, and many parts of oil buffers, and achieve easy and fast processing and assembly. The effect of unrestricted use environment and low processing precision requirements

Active Publication Date: 2016-08-10
宁波鑫鑫鑫寅电气有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The machining accuracy of the air buffer is extremely high, which brings about a sharp increase in manufacturing cost, and the volume is four times that of the oil buffer, which is obviously not suitable for the miniaturization of electrical appliances, and the application is limited; the oil buffer has many parts and processing Fine, difficult to control the amount of refueling, oil leakage, especially poor temperature adaptability and other issues
The defects and bad conditions of such buffers have been perplexing the industry for a long time.

Method used

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Embodiment 1

[0017] Such as Figure 1~2 As shown, a damping rubber buffer includes a main body 1, a piston 2, a cylinder cap 3, a damping rubber 4, a compression spring 5 and a cylinder liner 6. Piston 2, damping rubber 4 and stage clip 5 are assembled in the cylinder liner 6, and then the cylinder liner 6 and the cylinder cap 3 are screwed together to form a whole.

[0018] Cylinder cap 3 is made of brass, and the outer thread is tightly fitted with the inner thread of cylinder liner 6.

[0019] The outer diameter of the upper part of the piston 2 is slidingly matched with the inner hole of the cylinder cap 3, and the tolerance clearance is ≥0.2mm; the clearance tolerance between the outer diameter of the lower part of the piston 2 and the inner bottom hole of the cylinder liner 6 is ≥0.5mm;

[0020] The damping rubber 4 is a cylindrical body of φ20×44mm, the outer circle is a corrugated structure, the number of corrugations is 10, the wave pitch is 1.8mm, and the depth of the wave valle...

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Abstract

The invention relates to a damping rubber buffer. According to the damping rubber buffer, damping rubber is taken as a buffering medium, a compressed spring is taken as an auxiliary reset element, the damping rubber buffer structurally comprises a piston, a cylinder cap, the damping rubber, the compressed spring and a cylinder sleeve, the piston, the cylinder cap, the damping rubber and the pressure spring part are assembled wholly in the cylinder sleeve, and the components are combined into an integral structure. The damping rubber buffer can meet the technical requirement that buffers are required to be used on various vacuum circuit breaker structures.

Description

technical field [0001] The invention belongs to the field of vacuum circuit breakers, in particular to a damping rubber buffer. Background technique [0002] The buffer is an effective means to control the rebound amplitude of the opening of the vacuum circuit breaker. It has always been one of the important components of the vacuum circuit breaker. The modern 10kV vacuum circuit breaker defines the rebound amplitude of the opening as ≤2ms. If the value is too large, It may cause arc reignition, and overvoltage will bring safety hazards to electrical equipment and power grids. At present, there are roughly two kinds of buffers for vacuum circuit breakers, namely, air buffers and hydraulic oil buffers that are widely used at present. The machining accuracy of the air buffer is extremely high, which brings about a sharp increase in manufacturing cost, and the volume is four times that of the oil buffer, which is obviously not suitable for the miniaturization of electrical app...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F7/12
Inventor 沈百能郭华马益站沈寅朱洁沈聪芬应速飞沈建文
Owner 宁波鑫鑫鑫寅电气有限公司
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