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One-way rotary damper

A rotary damper and function technology, applied in the damping field, can solve the problems of the operator pulling down the rolling shutter door hard, easy to deform and break, easy to heat, etc., and achieve the effects of convenient installation, increased strength, and prolonged service life.

Pending Publication Date: 2019-03-29
长沙微联精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dampers are used in existing rolling doors. Existing dampers used in high-quality rolling doors generally include a housing and an internal transmission shaft. The transmission shaft is an integrated structure. , both directions have a damping effect, it is very difficult for the operator to pull down the rolling shutter door, and the transmission shaft in the existing damper has an integrated structure, which is prone to heat and cause failure, deformation and fracture

Method used

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Examples

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Embodiment

[0021] A one-way acting rotary damper, with reference to Figure 1-Figure 4 As shown, it includes a housing 1, a transmission shaft arranged in the housing 1, and damping oil sealed between the housing 1 and the transmission shaft. The housing 1 is made of PC or ABS (PC+ABS) plastic material, wherein , the transmission shaft includes a drive shaft 3 and a follower shaft 2, the follower shaft 2 is located inside the casing 1, and an annular groove 203 is arranged on the outer wall of the follower shaft 2 close to the opening of the casing 1, and the ring groove 203 is fitted with a The seal ring 5 for damping oil leakage has a circular groove 204 recessed at the end of the follower shaft 2 close to the opening of the housing 1, and a one-way bearing 4 is interference-fitted in the circular groove 204, and the transmission shaft is connected with the follower shaft through the one-way bearing 4. The shaft 2 is rotationally connected, and the one-way bearing 4 can adopt a one-way...

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PUM

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Abstract

The invention discloses a one-way rotary damper which comprises a shell, a transmission shaft arranged in the shell and damping oil packaged between the shell and the transmission shaft. The transmission shaft comprises a driving shaft and a follow-up shaft, the follow-up shaft is located in the shell, and a round groove is formed in the end, away from the shell, of the follow-up shaft; a one-waybearing is in interference fit with the round groove, and the transmission shaft is rotationally connected with the follow-up shaft through the one-way bearing. The damper plays a one-way damping role, the damper is reasonable in overall structure and high in strength, the heating failure can not be caused in the using process, and the service life is long.

Description

technical field [0001] The present invention relates to the field of damping, and more particularly, it relates to a single-acting rotary damper. Background technique [0002] Damper is a device that uses damping characteristics to slow down mechanical vibration and consume kinetic energy. It is widely used in aerospace, aviation, military, guns, automobiles and other industries. curtain etc. [0003] Dampers are used in existing rolling doors. Existing dampers used in high-quality rolling doors generally include a housing and an internal transmission shaft. The transmission shaft is an integrated structure. , Both directions have a damping effect, and it is very difficult for the operator to pull down the rolling shutter door, and the transmission shaft in the existing damper has an integrated structure, which is prone to heat and cause failure, and is easily deformed and broken. Contents of the invention [0004] The object of the present invention is to provide a one-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F3/14
CPCE05F3/14
Inventor 罗涛
Owner 长沙微联精密机械有限公司
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