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Speed variator of two-stage variable speed starter

A technology of starter and two-stage deceleration, which is applied in the direction of transmission, gear transmission, mechanical equipment, etc., can solve the problem of small starter working requirements, can not meet, can not meet the output speed ratio and other problems, achieve short start time, high speed The effect of durability and high starting torque

Inactive Publication Date: 2009-02-25
杨旭伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it cannot meet the different requirements of engines of different types and power levels and various models, especially because of the structural characteristics, it cannot meet the working requirements of starters with small output speed ratios.

Method used

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  • Speed variator of two-stage variable speed starter
  • Speed variator of two-stage variable speed starter

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Experimental program
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Embodiment Construction

[0010] The two-stage variable speed starter transmission device includes a primary speed-up mechanism and a secondary speed-down mechanism. The two-stage reduction mechanism is a known structure, see figure 2 , is formed by meshing the sun gear 6 of the first-stage speed-up mechanism with the planetary gear 10 in the two-stage reduction device, and then meshing the planetary gear 10 with the fixed internal gear 11. The first-stage speed-up mechanism includes a first-stage speed change internal gear 3, a first-stage speed change planetary gear 8, a first-stage speed change planetary gear fixed plate 4, and a sun gear 6 connected with a two-stage speed change. The first-stage variable speed internal gear 3 is installed in the secondary variable-speed case 1 (the original starter variable-speed case) through the bearing 2. The large and small ends of the primary variable-speed internal gear 3 are equipped with internal teeth, and the small end internal teeth are connected with t...

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Abstract

A gear change mechanism of a secondary variable-speed starter comprises a first accelerating mechanism, and a secondary decelerating mechanism, wherein the first accelerating mechanism comprises a first variable-speed inner gear wheel, a first variable-speed planet gear wheel and a sun wheel gear connecting the secondary variable-speed mechanism. Inner teeth are formed at the big and small ends of the first variable-speed inner gear wheel, wherein the inner teeth of the small end are inserted into outer teeth produced by the front end of the rotor shaft of the starter; the inner gear wheel of the big end of the first variable-speed inner gear wheel drives the first variable-speed planet gear wheel; and the first planet gear wheel drives the sun gear wheel connected with the secondary variable-speed mechanism. The secondary decelerating mechanism comprises a planet gear wheel, an inner gear wheel, and a fixing tray of the planet gear wheel, wherein the planet gear wheel is driven by the sun gear wheel connected with the secondary variable-speed mechanism; the planet gear wheel rotates fixedly around the inner gear wheel and drives the fixing tray of the planet gear wheel to rotate, thereby outputting the rotating speed; and different reduction ratio parameters are set according to the property requirements of different types of starters. The mechanism has the advantages of large starting torque, short starting time, high efficiency, higher reliability and higher durability.

Description

technical field [0001] The invention relates to a starter for an automobile engine, in particular to a speed change device for a two-stage speed change starter. Background technique [0002] With the development of automobiles and engines, the development of starters is very rapid. At present, starters with deceleration devices are widely used due to their compact structure, small size, light weight, stable transmission torque, low starting noise, and long service life. The deceleration devices of their starters are mostly planetary reducer. The universal planetary reduction starter is a drive cover assembly driven by a DC motor to drive the planetary gear to change speed. The planetary gear rotates along the fixed inner ring gear to drive the fixed plate of the planetary gear to rotate, and the output speed is provided for the engine to start. The disadvantage is that it cannot meet the different requirements of engines of different types and power levels and various vehi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/28
Inventor 唐荣成
Owner 杨旭伟
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