Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hydraulic transmission stepless speed-changing system

A continuously variable speed, hydraulic transmission technology, applied in the field of variable speed systems, can solve the problems of high requirements for parts processing and lubrication, the system cannot absorb and damp vibration, and the equipment of the electric drive system is complicated, so as to ensure the transmission ratio and reduce oil leakage. phenomenon, the effect of preventing component damage

Active Publication Date: 2018-05-18
ZHEJIANG UNIV CITY COLLEGE
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the mechanical transmission continuously variable transmission system is relatively common now, which has the characteristics of small slip rate and reliable operation, but the processing and lubrication requirements of the parts are high; at the same time, because the parts are in rigid contact, the system cannot absorb and attenuate vibration , causing the system to not work smoothly
For the continuously variable transmission system of electric transmission, its response speed is slow, and there is also the problem of unstable operation at low speed, and the equipment of electric transmission system is complicated and expensive, and its maintenance also requires corresponding professionals

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
  • Hydraulic transmission stepless speed-changing system
  • Hydraulic transmission stepless speed-changing system
  • Hydraulic transmission stepless speed-changing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Embodiment: hydraulic transmission continuously variable transmission system, constitutes as figure 1 , figure 2 and image 3 As shown, it includes a main circuit 100 composed of a pump 110 and a motor 120. The main circuit 100 is provided with a first branch 200 and a second branch 300 in sequence; The first one-way valve 210 and the second one-way valve 211, the oil supply branch 400 is connected between the first one-way valve 210 and the second one-way valve 211, the oil supply branch 400 is connected with the oil tank 520, the oil supply The branch 400 is provided with a charge pump 410; the second branch 300 is provided with a third one-way valve 310 and a fourth one-way valve 311 oppositely arranged and the flow direction is outflow, and the third one-way valve 310 and the fourth one-way valve An oil outlet branch 500 is connected between the valves 311, the oil outlet branch 500 is connected to the oil tank 520, and a safety valve 510 is provided on the oil o...

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 discloses a hydraulic transmission stepless speed-changing system. The hydraulic transmission stepless speed-changing system comprises a main loop composed of a pump and a motor and further comprises an electronic control unit. The main loop is provided with a first branch circuit for oil inlet and corresponding structures and a second branch circuit of oil outlet and corresponding structures. A sliding valve connected with the motor is further connected to the main loop in parallel; the pump is connected with an input shaft, and the motor is connected with an output mechanism; the electronic control unit is connected with a plurality of sensors and further connected with an output servo mechanism; and the output servo mechanism is connected with the motor. The hydraulic transmission stepless speed-changing system has the characteristics of smooth transmission, high lubrication full response speed and relatively-simple system; in addition, the oil leakage phenomenon is not likely to occur, and the system pressure and the transmission ratio are stable; meanwhile, the performance, resistant to hydraulic pressure impact, of a pipeline of the hydraulic transmission stepless speed-changing system is good, and the oil leakage phenomenon can be further reduced; and the motor is sufficiently lubricated, the energy of the friction loss is small, and the transmission efficiency of the system is high.

Description

technical field [0001] The invention relates to a speed change system, in particular to a hydraulic transmission continuously variable speed system. Background technique [0002] A continuously variable transmission system refers to a transmission system that can continuously obtain any transmission ratio within the transmission range. The best match between the transmission system and the engine operating conditions can be obtained through continuously variable transmission. The existing continuously variable transmission system mainly includes mechanical transmission continuously variable electric transmission continuously variable transmission. Among them, the mechanical transmission continuously variable transmission system is relatively common nowadays. It has the characteristics of small slip rate and reliable operation, but the processing and lubrication requirements of the parts are high; at the same time, because the parts are in rigid contact, the system cannot ab...

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 Applications(China)
IPC IPC(8): F16H41/24F16H57/04
CPCF16H41/24F16H57/0409F16H57/0412
Inventor 邵威陆倩倩
Owner ZHEJIANG UNIV CITY COLLEGE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com