Electromagnetic boosting type gear shifting mechanism

A shift mechanism and force-increasing technology, applied in mechanical equipment, components with teeth, belts/chains/gears, etc., can solve problems such as insufficient shifting force, improve reliability, improve control speed, and improve accuracy. The effect of shifting

Inactive Publication Date: 2017-12-22
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the above patents, the electromagnetic attraction generated by the coil directly acts on the shift fork, and there is a problem of insufficient shifting force.

Method used

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  • Electromagnetic boosting type gear shifting mechanism
  • Electromagnetic boosting type gear shifting mechanism
  • Electromagnetic boosting type gear shifting mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.

[0031] Such as figure 1 , 2 As shown, an electromagnetic booster shift mechanism includes a sector gear 6, the top of the sector gear 6 meshes with the sliding fork 2, and the sliding fork 2 cooperates with the guide rail shaft 3 on the same axis. When the sector gear 6 rotates, The sliding fork 2 slides on the guide rail shaft 3, and the self-locking device 1 is installed on the sliding fork 2, and the position of the sliding fork 2 is self-locked; the self-locking device 1 is composed of a self-locking steel ball and a self-locking spring. The self-locking steel ball is pressed into the corresponding groove of the sliding shift fork 2 by the self-locking spring, which plays the role of locking the gear and prevents the gear from being disengaged; the upper end of the sector gear 6 is in interference fit with the outer ring of the positioning be...

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PUM

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Abstract

The invention discloses an electromagnetic boosting type gear shifting mechanism. The electromagnetic boosting type gear shifting mechanism comprises a self-locking device, a sliding shifting fork, a guide rail shaft, a first coil mounting rack, first coils, a sector gear, middle coils, a second coil mounting rack, second coils, a locating bearing, an assembly support, an infrared photoelectric reflective sensor and an ECU. When the electromagnetic boosting type gear shifting mechanism is in a neutral gear, the sliding shifting fork is located in the middle position of the guide rail shaft. The ECU controls connection and disconnection of electricity and current conditions of the first coils, the middle coils and the second coils to enable the first coils, the second coils and the middle coils to generate electromagnetic force simultaneously and act on the mounting ends of the middle coils. By means of the lever principle, the rotating arm force of the mounting ends of the middle coils is greater than that of the gear end. Under the energizing action of the sector gear, the sliding shifting fork is made to slide on the guide rail shaft to achieve the gear shifting action. Moreover, when the sliding shifting fork stops sliding, the self-locking device conducts self-locking.

Description

technical field [0001] The invention relates to the field of vehicle shifting mechanisms, in particular to an electromagnetic booster shifting mechanism. Background technique [0002] At present, automatic mechanical transmissions (AMT) generally use electro-hydraulic, electric, and all-electric shift mechanisms, in which electro-hydraulic and electric shift mechanisms use hydraulic energy storage devices to complete gear selection and shift actions through the control of solenoid valves. The disadvantages are large size, complex structure, high manufacturing cost, and power loss during the operation process. However, the all-electric shift mechanism uses an orthogonal two-motor arrangement to complete the gear selection and shift actions. The disadvantage is that it is difficult to control and easily leads to shifting. Stuck phenomenon. [0003] Chinese patent (CN202612594U) discloses an automatic electromagnetic shifting device for an electric vehicle. An electromagnetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/28F16H63/30F16H59/10
CPCF16H61/28F16H59/105F16H63/304F16H2061/2853F16H2061/2876F16H2063/305F16H2063/3059
Inventor 何仁邓衡
Owner JIANGSU UNIV
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