Speed regulation device and land leveler

A technology of speed control device and motor grader, which is applied in the direction of transmission device control, mechanical equipment, earth mover/shovel, etc., to achieve the effect of reducing the number of gears and the number of gear shifts

Inactive Publication Date: 2014-05-07
HUNAN SANY ROAD MACHINERY
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention proposes a speed regulating device and a motor grader to solve the problem of coordinated operation of mechanical and hydraulic shifting

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
  • Speed regulation device and land leveler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0014] Such as figure 1 As shown, the present invention preferably has a speed regulating device, including an engine, a gearbox, a hydraulic motor, a hydraulic pump, a controller, and a gear shifter. The gear shifter is a handle for operating the gear shifting of the gearbox, and the engine drives the hydraulic motor pump. Oil, the hydraulic pump supplies oil to the hydraulic motor, and the hydraulic motor is connected to the gearbox. The power transmission route is: engine-hydraulic pump-hydraulic motor-gearbox.

[0015] The controller obtains the gear position signal of the gear shifter. On the one hand, it controls the gearbox to shift gears. On the other hand, according to the current gear...

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 speed regulation device which comprises a gearbox, a hydraulic motor and a hydraulic pump. Oil is supplied to the hydraulic motor by the hydraulic pump. The hydraulic motor is connected with the gearbox. In addition, the speed regulation device further comprises a gear stage device and a controller. Gear stage signals of the gear stage device of the gearbox are obtained by the controller, so that the delivery capacity of the hydraulic motor and / or the hydraulic pump is adjusted. The invention further provides a land leveler comprising the speed regulation device. The gear stage signals of the gear stage device are collected by the controller in real time, delivery capacity control signals are output to the hydraulic pump and / or the hydraulic motor, gear-shifting control orders are sent to the gearbox, and therefore the delivery capacity of the hydraulic pump and / or the hydraulic motor and the gear stage of the gearbox are adjusted. The purpose of cooperated speed regulation of mechanical speed change and hydraulic speed change is achieved. Due to the fact that speed regulation with a certain range can be achieved by the hydraulic pump and the hydraulic motor, the same speed regulation range is achieved, and meanwhile the gear stage number and the number of times of gear shift of the mechanical gearbox can be reduced.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a speed regulating device and a grader comprising the speed regulating device. Background technique [0002] At present, the existing motor grader walking power transmission system includes three schemes: (1) prime mover, hydraulic torque converter, gearbox, drive shaft, drive axle, balance box, wheels, (2) prime mover, gearbox, Drive shaft, drive axle, balance box, wheels, (3) For example, CN200420068592 patent discloses a "motor grader driving device", the power transmission route of the patent is: prime mover-hydraulic pump-hydraulic motor-gearbox-drive axle . Both the first scheme and the second scheme adopt a gearbox for gear shifting, which is hereinafter referred to as a mechanical shifting, and there is a shifting shock in the mechanical shifting. The third scheme is to use a gearbox for gear shifting, and a hydraulic pump and a hydraulic motor for hydraulic shiftin...

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): E02F3/76E02F3/84E02F3/85
CPCF16H61/47E02F3/76E02F9/2079E02F9/2253
Inventor 林涛杨岱璋江海波
Owner HUNAN SANY ROAD MACHINERY
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