Synchronous control device of hydraulic headstock gear

A hydraulic hoist and synchronous control technology, applied in fluid pressure actuators, mechanical equipment, water conservancy projects, etc., can solve the problems of expensive servo valves, long working strokes, and difficult control

Inactive Publication Date: 2007-09-12
CHANGZHOU HYDRAULIC COMPLETE EQUIP
View PDF0 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the hydraulic hoists used in water conservancy projects are often of large capacity and long working strokes, it is difficult to control if the volume synchronization is used; the synchronization accuracy of the servo synchronization is high, but the servo valve is particularly expensive; since the gate itself has a certain rigid synchronization function Therefore, flow

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
  • Synchronous control device of hydraulic headstock gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The synchronous control device of the hydraulic hoist of the present invention as shown in Figure 1 has a set of hydraulic control system and a set of electrical control system, and the hydraulic control system has two sets of oil pump motor units 4, two rectifying speed regulating valve groups 2 and a bypass oil drain rectifying valve group, the two oil pump motor sets 4 serve as backups for each other, the bypass oil drain rectifying valve group is a three-position four-way proportional valve, and the electrical control system has a gate opening detection device and a programmable control valve. PLC, the oil pump motor unit 4 is connected to the inlet of two rectifying speed regulating valve groups 2 respectively through the oil pipeline, and the outlets of the two rectifying speed regulating valve groups 2 are respectively connected to the three-position four-way proportional valve 3 through the oil pipeline, and then respectively connected to a Only the hydraulic cyl...

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 hydraulic start-stop technique field, particularly a control device of high degree of accuracy synchronization hydraulic start-stop machine. The hydraulic can auto controls double-cylinder synchronous operation in start-stop progress of anchor gate. It has a hydraulic and an electricity control device. The hydraulic control device makeup with an oil pump electric engine group, two rectified speed control value group and a by-pass cut-away gate gurgle value group. The electricity control system makeup with a gate opening-detection device and a PLC. The invention use synchronous closed loop program combine the coarse adjustment of rectified speed control value group and gate gurgle of by-pass cut-away gate gurgle value group. It makes high degree of accuracy synchronization of two fluid cylinders and low cost of hydraulic start-stop machine.

Description

technical field [0001] The invention relates to the technical field of hydraulic hoists, in particular to a synchronous control device for a hydraulic hoist which can automatically control the synchronous operation of two cylinders and has high synchronization precision during the opening and closing process of a gate. Background technique [0002] The hydraulic hoist has a series of advantages such as high transmission efficiency, stable operation, large opening and closing capacity, compact structure, light weight, simplified hydraulic structure, stepless speed regulation, convenient on-site operation and remote centralized control, etc., and gradually replaces Hoist hoist is widely used in water conservancy projects. For the hydraulic hoist with double lifting points, although the gate itself has a relatively large spatial rigidity, there is always a synchronization deviation during operation. The synchronous deviation of the two hydraulic cylinders of the hydraulic hois...

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
IPC IPC(8): F15B11/22E02B7/26
Inventor 李兴富花晓阳丁昇
Owner CHANGZHOU HYDRAULIC COMPLETE EQUIP
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