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Speed changing box of motor-driven gear shifting mechanism

A shifting mechanism and motor-driven technology, which is applied in the field of gearboxes, can solve the problems of unstable shifting force and inaccurate shifting, and achieve the effect of accurate shifting

Inactive Publication Date: 2015-01-28
唐海滨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The original shifting mechanism of the traditional automatic transmission is: the servo valve controls the work of the cylinder or the oil cylinder, the cylinder or the oil cylinder drives the shift head, and the shift head drives the shift fork, thereby realizing the gear shift. Influenced by uncertain factors of gear position, such as input signal, the output signal processed by TCU is not very accurate, resulting in unstable shifting force and inaccurate shifting

Method used

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0013] Such as figure 1 , 2 As shown, the gearbox of the motor-driven shift mechanism of the present invention includes a shift motor 1, a roller screw 2, a shift head 3, a fork shaft 4, a shift fork 5, a guide block 6, an input shaft 7, output shaft 8. The ball screw 2 is connected to the output shaft of the shift motor 1, and the upper end of the dial 3 is provided with an internal thread sleeve, and the internal thread sleeve is threadedly connected with the roller screw 2; The lower end of the toggle 3 fixes the shift fork 5 . The actuator includes an input shaft 7, an output shaft 8, a needle bearing 9, a first gear 10, a second gear 11, a shaft 12, a third gear 13, and a fourth gear 14. The input shaft 7 and the first gear 10 is fixedly connected, the bottom of ...

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Abstract

The invention relates to a speed changing box technology, in particular to a speed changing box of a motor-driven gear shifting mechanism. The speed changing box comprises a gear shifting motor, a ball screw, a shifting block, a gear shifting fork and an execution mechanism, wherein the ball screw is connected with an output shaft of the gear shifting motor; an internal thread sleeve is arranged at the upper end of the shifting block and is in threaded connection with the ball screw; the gear shifting fork is fixedly arranged at the lower end of the shifting block and is connected with the execution mechanism. An air cylinder or an oil cylinder is replaced with a motor, so that the gear shifting force is steadily output, and gears are more accurately shifted; moreover, due to the fact that stress on the gear shifting fork is larger, the gear shifting fork is not directly connected with the ball screw to avoid the damage to the ball screw with the adoption of the design of a fork shaft and a guide block.

Description

technical field [0001] The invention relates to a gearbox technology, in particular to a gearbox for a motor-driven shifting mechanism. Background technique [0002] The gearbox mainly refers to the gearbox of the car, which is divided into manual and automatic. The manual gearbox is mainly composed of gears and shafts, and the variable speed and torque are generated through different gear combinations; It is composed of torque converter, planetary gear and hydraulic control system, and achieves variable speed and torque through hydraulic transmission and gear combination. The functions are: 1. to change the transmission ratio; 2. to enable the car to run backwards when the rotation direction of the engine remains unchanged; 3. to use the neutral gear to interrupt the power transmission so that the engine can start and idle, and it is convenient for the transmission to shift gears or perform power transmission. output. [0003] The original shifting mechanism of the tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/32F16H61/04
CPCF16H63/32F16H61/04F16H2061/0474F16H2063/321
Inventor 唐海滨王军雷雨龙王志福
Owner 唐海滨
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