Planet reductor brake

A kind of machine brake and planetary deceleration technology, applied in the direction of brake actuator, mechanical equipment, engine components, etc., can solve the problems of restricting the development of construction machinery industry, insufficient radial compression, poor sealing effect, etc., to improve the sealing effect and the performance of the whole machine, reducing the deformation rate, and the effect of small frictional resistance

Inactive Publication Date: 2012-02-08
XUZHOU KEYUAN HYDRAULIC
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, oil leakage is common in the brakes of planetary reducers required for construction machinery, hoisting and transportation machinery, etc.
The main reason for the oil leakage problem is: the piston seal in the brake mostly adopts the existing star-shaped sealing ring, which deforms greatly under high pressure, resulting in insufficient radial compression, resulting in poor sealing effect and oil leakage problem

Method used

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Embodiment Construction

[0011] Below in conjunction with embodiment the present invention is further described. Such as figure 1 , figure 2 As shown, a planetary reduction gear brake, which includes a brake housing 1, a piston 4 is housed in the brake housing 1, a sealed cavity 5 is arranged between the piston 4 and the brake housing 1, and the outer circle of the piston 4 and the brake There is a sealing groove at the joint of the inner wall of the housing 1, and a sealing ring 3 is installed in the sealing groove. The sealing ring 3 is an H-shaped sealing ring. Both axial sides are planes, the cross-section is H-shaped, the lip cross-section is arc-shaped, and there is an arc transition between the lip and the groove. The both sides of described sealing ring 3 have nylon retaining ring 2.

[0012] The H-type sealing ring is a self-tightening sealing ring installed radially. The axial force depends on the pressure P of the system. As the pressure P increases, the radial compression of the H-type...

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Abstract

The invention discloses a planet reductor brake, and belongs to the technical field of planet reductors. The brake comprises a brake shell, wherein a piston is arranged in the brake shell, a seal cavity is arranged between the piston and the brake shell, and the joint of a piston excircle and an brake shell inner wall is provided with a seal groove; and a seal ring is arranged in the seal groove, the seal ring is an H-shaped seal ring, the radial inner and outer circles of the seal ring are respectively provided with a groove, the axial two sides of the seal ring are flat surfaces, and the sections of the axial two sides of the seal ring are H-shaped. The brake adopting the H-shaped seal ring provided by the invention has the beneficial effects of smaller frictional resistance and starting resistance and good sealing effect; the non-circular section can prevent rolling during the reciprocating motion, and the wearability is good; and by using the brake provided by the invention, the problem of oil spilling because of insufficient radial compression quantity caused by large transformation of the existing star seal ring can be solved, thereby improving the brake sealing effect and the whole brake performance.

Description

technical field [0001] The invention relates to a planetary reducer brake, which belongs to the technical field of planetary reducers. Background technique [0002] At present, oil leakage is common in the brakes of planetary reducers required for construction machinery, hoisting and transportation machinery, etc. The main reason for the oil leakage problem is that the piston seal in the brake mostly adopts the existing star-shaped sealing ring, which deforms greatly under high pressure, resulting in insufficient radial compression, resulting in poor sealing effect and oil leakage problem. Contents of the invention [0003] In order to overcome the disadvantages of the above-mentioned prior art, the present invention provides a planetary reduction gear brake, which uses an H-shaped sealing ring to improve the sealing effect and solve the problem of oil leakage. [0004] The present invention is achieved through the following technical solutions: a planetary reduction gear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/10F16D65/16F16J9/20
Inventor 韩永进唐俊辉
Owner XUZHOU KEYUAN HYDRAULIC
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