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

Control device for hydraulic winch and engineering machine

A control device and hydraulic winch technology, applied in the hydraulic field, can solve problems such as unstable speed and achieve the effect of stable control

Active Publication Date: 2012-12-12
SHANGHAI ZOOMLION HEAVY IND PILING MACHINERYCO +1
View PDF7 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to provide a control device and a drilling rig for a hydraulic winch, so as to solve the problem of unstable speed in the prior art when the rope is unwound at a slow speed

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
  • Control device for hydraulic winch and engineering machine
  • Control device for hydraulic winch and engineering machine
  • Control device for hydraulic winch and engineering machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0029] As a first aspect of the present invention, a control device for a hydraulic winch is provided. Such as figure 2 with image 3 As shown, the control device includes a motor 10, a back pressure valve 20 and a flow regulating valve 30; the motor 10 is connected with a hydraulic winch 40, and the motor 10 includes a load chamber 11 and a descending chamber 12; the load chamber 11 is sequentially connected with the back pressure valve 20, the flow rate The regulating valve 30 is connected with the oil tank 50 . Preferably, the motor 10 is connected to the reel of the hydraulic winch 40 through a reducer 110 . Therefore, in the case where a slow descent is required, a reducer with a larger reduction ratio is used, and the slow descent is easier...

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 provides a control device for a hydraulic winch and an engineering machine. The control device comprises a motor, a back pressure valve and a flow regulation valve, wherein the motor is connected with the hydraulic winch, and comprises a loading cavity and a descending cavity; and the loading cavity is connected with the back pressure valve, the flow regulation valve and an oil tank sequentially. According to the control device, the flow regulation valve is used for regulating the flow of hydraulic oil discharged from the loading cavity of the motor, so that the control on a descending speed is realized, the speed of slow descending is controlled stably, and the control is more stable and reliable.

Description

technical field [0001] The invention relates to the field of hydraulics, and more specifically, to a control device for a hydraulic winch and construction machinery. Background technique [0002] Vertical earth and stone excavation construction (such as drilling down from the surface, tunneling, etc.) needs to control the speed of drilling / driving, and the pressure of drilling / driving equipment (ie, load) on the ground. When the drilling / excavation working device is suspended by a hydraulic winch, the speed of drilling / excavation and the pressure control of the drilling / excavation working device on the ground can be controlled by controlling the speed of the hydraulic winch (that is, the speed of descent) and the speed on the rope. Drag is achieved. [0003] figure 1 A hydraulic principle diagram of a control device of a hydraulic winch in the prior art is shown. Such as figure 1 As shown, the reel of the hydraulic winch 40 is connected to the motor 10 through a reducer ...

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): B66D1/08B66D1/44
Inventor 朱长林乔国华黄志明刘发民
Owner SHANGHAI ZOOMLION HEAVY IND PILING MACHINERYCO
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