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Novel synchronizer with rolling type sliding block

A rolling and synchronizer technology, which is applied in the direction of mechanically driven clutches, clutches, couplings, etc., can solve problems such as poor friction performance, insufficient driving effect, failure of neutral gear positioning, etc., to improve the effect, improve the overall operation effect, reduce The effect of fixed gear stuck

Inactive Publication Date: 2021-04-30
泰州贺安特动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the single-cone synchronizer, the three-cone synchronizer can theoretically reduce the synchronization time of upshift and downshift. However, the existing synchronizer often has the problem of gear sticking due to the problem of the slider structure. As a result, the synchronization effect is poor. Patent CN105987090 records a rolling synchronizer slider. The slider structure is provided with an air spring. The air spring adopts an air spring chamber with a uniform caliber. When it is necessary to perform neutral positioning, the balls on the slider need to be pushed out. Using a uniform caliber, when the driving force gradually decreases in the later stage, the pushing effect on the balls will gradually decrease, which will easily lead to problems caused by insufficient pushing effect. The problem of neutral gear positioning failure needs to be improved; in addition, although the hardness of the existing synchronizer material can meet the requirements, the friction performance is poor. The synchronizer realizes power transmission through friction, so it is necessary to improve the existing synchronizer material make improvements

Method used

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  • Novel synchronizer with rolling type sliding block
  • Novel synchronizer with rolling type sliding block

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Embodiment 1: A new type of synchronizer with a rolling slider, including a tooth sleeve, a gear hub and a synchronous lock ring, the gear sleeve and the gear hub are fixed by the synchronous lock ring, and the gear hub is provided with a rolling positioning The slider, the rolling positioning slider includes a slider body 1, a ball 2 and an air spring seat 3, the slider body 1 is provided with a three-stage air spring chamber 4, and the air spring seat 3 is fixed on the three-stage The bottom of the first-stage air spring chamber 4, the top of the third-stage air spring chamber 4 is fixed with a hemispherical bushing 5; the hemispherical bushing 5 is provided with a sponge layer 6, and lubricating oil is stored in the sponge layer 6, and the sponge layer 6 is provided with The ball 2, the top of the slider body 1 is located on both sides of the bushing 5 and is provided with an elastic limit assembly 7 to limit the sliding of the ball 2;

[0019] The three-stage air sp...

Embodiment 2

[0024] Embodiment 2: The specific structure and implementation of this embodiment are the same as those in Embodiment 1, the difference being that the composition of the new copper alloy material is: copper: 52%; aluminum: 33.91%; manganese: 0.5% ; Iron: 6%; Silicon: 6%; Chromium: 0.5%; Carbon: 1%; Yttrium: 0.05%; Nickel: 0.02%; Magnesium: 0.02%; The coefficient of friction of this material can reach 0.14.

Embodiment 3

[0025] Embodiment 3: The specific structure and implementation method of this embodiment are the same as those in Embodiment 1, the difference being that the composition of the new copper alloy material is: copper: 53%; aluminum: 35.81%; manganese: 0.5% ; Iron: 5%; Silicon: 5%; Chromium: 0.5%; Carbon: 0.1%; Yttrium: 0.05%; Nickel: 0.02%; Magnesium: 0.02%;

[0026] The synchronizer prepared by the invention has the advantages of light weight, high strength and excellent friction transmission performance, and has broad application prospects.

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Abstract

The invention discloses a novel synchronizer with a rolling type sliding block. The novel synchronizer comprises a gear sleeve, a gear hub and a synchronous locking ring, the gear sleeve and the gear hub are fixed through the synchronous locking ring, the rolling type positioning sliding block is arranged in the gear hub, the rolling type positioning sliding block comprises a sliding block body, a ball and an air spring base, and a three-stage air spring bin is arranged in the sliding block body. The air spring base is fixed to the bottom of the three-stage air spring bin, a hemispherical bush is fixed to the top of the three-stage air spring bin, and the ball is arranged in the bush. Elastic limiting assemblies are arranged at the positions, located at the two sides of the bush, of the top of the sliding block body to limit the ball from sliding out. According to the synchronizer, by redesigning a mechanism, especially a rolling type sliding block structure, the operation stability of the synchronizer is greatly improved, through the structural design of the three-stage air spring bin, sensitive operation of the ball is achieved, and the problem of gear setting clamping stagnation is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of synchronizers, in particular to a novel synchronizer with a rolling slider. Background technique [0002] The use of synchronizers in automobile gearboxes can ensure that the gear meshes are not impacted when shifting gears, prolong the service life of gears, and make gear shifting convenient and fast. At present, there are many kinds of slider-type synchronizers, including single-cone, double-cone and even three-cone synchronizers, which can be selected according to different engine power and shift performance requirements. Double-cone and triple-cone synchronizers use the increase in the number of cones to increase the synchronization capacity. Compared with the single-cone synchronizer, the three-cone synchronizer can theoretically reduce the synchronization time of upshift and downshift. However, the existing synchronizer often has the problem of gear sticking due to the problem of the slider structu...

Claims

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Application Information

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IPC IPC(8): F16D23/02F16D23/06C22C9/01
CPCF16D23/02F16D23/06F16D23/025C22C9/01F16D2023/0618F16D2023/0625F16D2200/0026F16D2300/06
Inventor 路惠忠
Owner 泰州贺安特动力科技有限公司
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