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Large-diameter rotary clutch oil cylinder rapid oil unloading structure

A large-diameter, clutch technology, applied in the field of hydraulic control, can solve the problems of large spring force, slow reset, etc.

Inactive Publication Date: 2021-04-09
贵州凯星液力传动机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an oil unloading structure that can quickly reduce the oil pressure in view of the problems that the existing rotary clutch needs to be designed with a large spring force and the reset is slow

Method used

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  • Large-diameter rotary clutch oil cylinder rapid oil unloading structure
  • Large-diameter rotary clutch oil cylinder rapid oil unloading structure

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Experimental program
Comparison scheme
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Embodiment Construction

[0021] Including cylinder 2, piston 3 and piston return butterfly spring 11, there is an oil discharge hole on piston 3, the oil discharge hole is composed of a large diameter T1 section and a small diameter T2 section, the transition from T1 section to T2 section is tapered Surface, steel ball 5 is set on the tapered surface, the diameter of steel ball 5 is smaller than the diameter of T1 segment and larger than the diameter of T2 segment.

[0022] The piston 3 divides the oil cylinder 2 into an oil inlet chamber and an oil discharge chamber. When the oil inlet chamber enters oil, the pressure of the hydraulic oil plus the pressure generated by the rotation of the hydraulic oil is greater than the centrifugal force generated by the rotation of the steel ball 5 in the direction of the cone surface. Participate.

[0023] Cylinder 2 is a disc structure with an annular stepped groove and a central opening. Piston 3 is a disc structure with a central opening. The inner wall of the...

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Abstract

The invention discloses a large-diameter rotary clutch oil cylinder rapid oil unloading structure which comprises an oil cylinder, a piston and a piston return belleville spring, an oil unloading hole is formed in the piston and composed of a large-diameter section T1 and a small-diameter sectionT2, the transition position from the section T1 to the section T2 is a conical surface, a steel ball is arranged on the conical surface, and the diameter of the steel ball is smaller than that of the section T1 and larger than that of the section T2. Centrifugal force generated by rotating hydraulic oil in the oil cylinder can be rapidly eliminated, through a simple one-way sealing structure controlled by the steel ball through the centrifugal force, the steel ball can automatically block an oil unloading opening during oil feeding, when the oil pressure of an oil inlet disappears, the steel ball can automatically leave the oil unloading opening under the action of the centrifugal force, so that the oil pressure is rapidly reduced, and reset can be achieved only through small spring elastic force.

Description

technical field [0001] The invention belongs to the hydraulic control technology, and in particular relates to a fast oil unloading structural design of a large-diameter rotary clutch oil cylinder in a transmission. Background technique [0002] In the transmissions used by vehicles and construction machinery, rotating clutches are used to varying degrees. Because there is relatively high-speed rotation in the oil passage entering the rotating clutch oil cylinder, and the relatively rotating part is sealed with a wear-resistant sealing ring. In order to improve the service life of the sealing ring, only small-sized sealing rings are considered in the design. For this reason, when arranging the oil inlet of the rotary clutch, the central oil supply method is adopted to reduce the seal size of the sealing ring. [0003] The rotary clutch is compressed by multiple internal and external friction plates, and the power is transmitted by the generated friction force. When combin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D25/12
CPCF16D25/12F16D25/14
Inventor 张正富
Owner 贵州凯星液力传动机械有限公司