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sprag type one-way clutch

A one-way clutch and wedge-type technology, applied in the field of mechanical transmission components, can solve the problems of one-way clutch failure, difficult to meet the service life requirements of starting and stopping motors, and roller failure, so as to reduce the design volume and ensure the use of The effect of increasing the life and the ability to transmit torque

Active Publication Date: 2019-02-19
无锡市神力齿轮冷挤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the roller engagement type one-way clutch used on the current starter motor is difficult to meet the service life requirements of the start-stop motor
[0003] In order to meet the requirements for the use of the start-stop motor, the applicant conducted a detailed analysis. Through the failure analysis of the roller-engaging one-way clutch, it was found that the main failure mode of the one-way clutch is the failure of the engagement spring of the roller, which leads to one-way failure. clutch failure

Method used

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  • sprag type one-way clutch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 , figure 2 As shown, the wedge type one-way clutch in embodiment 1 is mainly composed of a star wheel 1, a wedge 2, an elastic ring 3, a driving gear 4, a gear shaft 5, a bearing 6, a spring 7, a cover 8, a snap ring 9, Shaft sleeve 10 and dust cover 11 etc. are formed.

[0028] Such as figure 1 , figure 2 As shown, the star wheel 1 is used to connect with the starter motor shaft to input torque. In this embodiment 1, the star wheel 1 is connected to the starter motor shaft in the form of gear reduction transmission, the outer peripheral surface of the star wheel 1 is provided with outer gear teeth, and the drive gear is installed on the starter motor shaft. The gear meshes with the outer gear teeth on the outer peripheral surface of the star wheel 1, so that the star wheel 1 realizes the connection transmission with the starter motor shaft.

[0029] Such as figure 1 , figure 2 As shown, the surface of the inner hole of the star wheel 1 is a s...

Embodiment 2

[0036] Such as image 3, Figure 4 As shown, the sprag type one-way clutch in Embodiment 1 is mainly composed of star wheel 1 , sprag 2 , elastic ring 3 and drive gear 4 .

[0037] Such as image 3 , Figure 4 As shown, the star wheel 1 is used to connect with the starter motor shaft to input torque. In the second embodiment, the star wheel 1 and the starter motor shaft are connected in the form of planetary reduction transmission, the outer peripheral surface of the star wheel 1 is provided with splines, the starter motor shaft is connected with an inner ring gear, and the star wheel The wheel 1 is set coaxially at the center of the ring gear. Between the ring gear and the star wheel 1, there are several planetary gears uniformly distributed around the star wheel 1. The outer side of the planetary gear meshes with the inner ring gear, and the inner side of the planetary gear Engage with the splines on the outer peripheral surface of star wheel 1. The splines on the outer...

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Abstract

The invention relates to a wedge-block type one-way clutch. The surface of a star wheel inner hole is a smooth cylindrical face. A drive gear in a drive gear assembly is arranged in the star wheel inner hole, and the peripheral surface of the drive gear is a smooth cylindrical face. A plurality of wedge blocks are arranged between the star wheel inner hole and the periphery of the drive gear, and the multiple wedge blocks are tightly arranged to form a circle in a surrounding manner in the circumferential direction. Each wedge block is provided with a slotted groove with an opening located in the outer end of the wedge block. The bottom faces of the slotted grooves are inclining faces, and the inclining directions of the bottom faces of the slotted grooves of all the wedge blocks are the same. Elastic rings are embedded in the slotted grooves of the wedge blocks forming one circle in the surrounding manner and have inward tightening force for the wedge blocks forming one circle in the surrounding manner. Under the action of the tightening force of the elastic rings, the outer ends of the wedge blocks conduct wedge-caulking on the surface of the star wheel inner hole, and the inner ends of the wedge blocks conduct wedge-caulking on the surface of the periphery of the drive gear. The wedge-block type one-way clutch is compact in structure, ingenious in design, small in size, small in weight, large in transmission power and high in machining precision, and the one-way clutch can have more stable work performance, higher reliability and longer service life.

Description

technical field [0001] The invention relates to a one-way clutch for an automobile starter motor with one-way torque transmission and reverse slipping, in particular to a wedge-type one-way clutch, which belongs to the technical field of mechanical transmission components. Background technique [0002] With the continuous development of automobile technology, higher requirements are put forward for auto parts. At present, there are new requirements and functions in terms of automobile energy saving and emission at home and abroad, such as the start-stop motor is one of them, this motor is used in a new type of energy-saving and emission-reducing automobile, and this type of automobile is At this time, the engine will automatically turn off, and the engine will start again as long as the accelerator is added, so as to achieve the function of energy saving and emission reduction. This type of car has higher requirements for the life of the starter motor because it needs to be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D41/06
CPCF16D41/06
Inventor 王维涛黄伟平
Owner 无锡市神力齿轮冷挤有限公司
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