A planetary gear shift mechanism driven by a motor

A technology of planetary gear train and gear shifting mechanism, which is applied in the direction of mechanical equipment, components with teeth, transmission device control, etc., to achieve the effect of simple installation structure, small shifting impact, and preventing gear loosening

Active Publication Date: 2016-05-18
HEFEI UNIV OF TECH
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of stability and shift smoothness of the existing heavy-duty vehicle gearbox sub-box, the present invention provides a motor-driven planetary gear shift mechanism

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A planetary gear shift mechanism driven by a motor
  • A planetary gear shift mechanism driven by a motor
  • A planetary gear shift mechanism driven by a motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0021] see figure 1 and figure 2 , A motor-driven planetary gear shift mechanism is composed of a planetary gear mechanism, a synchronizer 15 and a shift fork mechanism.

[0022] see figure 1 and image 3 , the planetary gear train mechanism includes a center wheel 2, an inner ring gear 7, a planet carrier 9 and three planetary wheels 3, the center wheel 2 is fixedly installed on one end of the input shaft 1, and the center wheel 2 and the input shaft 1 are connected through a spline fit, The shaft end of the input shaft 1 is fixed by a lock nut, and the other end of the input shaft 1 is the input end. The planet carrier 9 is formed by a disk coaxially connected with a rotating shaft, see image 3 , three planetary gears 3 are evenly distributed on the disk through the planetary gear shaft 5, and needle bearings 4 are installed between e...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a planetary gear shifting mechanism driven by a motor. The shifting mechanism is composed of a planetary gear mechanism, a synchronizer and a shift fork mechanism; the planetary gear mechanism includes a sun gear, an inner ring gear, a planetary carrier and three planetary gears; the planetary carrier is coaxially connected by a disc Formed around a rotating shaft, three planetary gears are evenly distributed on the disc, and the three planetary gears mesh with the center wheel and the ring gear at the same time; one side of the ring gear is connected with a tubular bushing, and the bushing is set on the On the rotating shaft of the carrier; one side of the synchronizer is sleeved on the shaft sleeve of the inner ring gear, and the other side of the synchronizer is sleeved on the rotating shaft of the planetary carrier; the shift fork mechanism includes a shift fork, a ball screw and a servo motor. The present invention adopts the ball screw driven by the servo motor to drive the shift fork to realize the shifting; the shifting impact is relatively small, and the smoothness and service life of the shifting are improved; the servo motor is powered by the car battery, which does not directly consume the kinetic energy of the engine, effectively improving the the efficiency of the engine.

Description

technical field [0001] The invention belongs to the technical field of transmissions, and in particular relates to a motor-driven planetary gear shifting mechanism suitable for an auxiliary case of a gearbox of a heavy-duty vehicle. Background technique [0002] At present, most heavy-duty vehicles use double countershaft transmissions, which are divided into two parts, the main gearbox and the auxiliary gearbox. Most of them use the same double countershaft method as the main gearbox. The gear transmission system corresponding to this method adopts ordinary external meshing gear transmission, which makes the gear transmission system of the auxiliary gearbox very complicated. The volume of the gearbox is relatively large, the structure is not compact enough, the stability is poor, and the transmission efficiency is relatively low. From the perspective of the executive driving mechanism for shifting, at present, the shifting method of the main gearbox mostly adopts the manua...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/02F16H61/32
CPCF16H59/02F16H61/32F16H63/32F16H2057/02043F16H2061/323Y02T10/60
Inventor 黄康夏公川董宇段松林朱晓慧张祖芳
Owner HEFEI UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap