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

Method and device for controlling secondary hoisting of crane winch

A control method and technology of cranes, applied in hoisting devices, clockwork mechanisms, etc., can solve problems such as poor control effects, high equipment manufacturing costs, and low power utilization efficiency, so as to achieve high power utilization efficiency and avoid hoisting The effect of the second lifting and lowering, reducing the manufacturing cost

Active Publication Date: 2012-06-20
ZOOMLION HEAVY IND CO LTD
View PDF8 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide a control method and control device for the secondary hoisting of the crane winch, so as to solve the problem of low power utilization efficiency and poor control effect in the control of preventing the secondary hoisting and sliding of the crane hoist in the prior art. Poor quality and high equipment manufacturing cost

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
  • Method and device for controlling secondary hoisting of crane winch
  • Method and device for controlling secondary hoisting of crane winch
  • Method and device for controlling secondary hoisting of crane winch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] It should be noted that, in the case of no conflict, the embodiments in the present application 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.

[0019] In this embodiment, the secondary hoisting of the hoist mainly means that after the hoist stops for a period of time, it is operated again to realize the hoisting or lowering. figure 1 It is a schematic diagram of the main steps of the control method for the secondary hoisting of the crane winch according to the embodiment of the present invention, as shown in figure 1 As shown, the method mainly includes the following steps:

[0020] Step S11: Record the pressure of the winch motor when the crane is hoisted up. The hoisting of the crane in this step refers to the first hoisting of the hoist. After the first lift, the crane stops for a period of time, and then performs the second lift...

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 method and a device for controlling secondary hoisting of a crane winch, and the method and device provided by the invention are used for solving the problems of low power utilization efficiency, poor control effect and higher equipment manufacturing cost during control over gliding down of the secondary hoisting of the crane winch. The method comprises the following steps of: recording the pressure of a winch motor when the crane winch performs hoisting; detecting the current pressure of the winch motor when the crane winch performs secondary hoisting, and comparing the current pressure with the recorded pressure of the winch motor; and if the current pressure of the winch motor is less than the recorded pressure of the winch motor, braking a winch mechanism, and pressurizing the hoisting loop of the winch motor to enable the current pressure to be not less than the preset pressure, wherein the preset pressure is determined according to the recorded pressure of the winch motor. By utilizing the technical scheme provided by the invention, the power utilization efficiency and the control effect are improved, and the manufacturing cost of equipment is reduced.

Description

technical field [0001] The invention relates to a control method and a control device for the secondary hoisting of a crane winch. Background technique [0002] Crane is a commonly used construction machinery, and the hoist of the crane is an important part of the crane. Crane hoist mainly refers to the hoist used for hooks and luffing on mobile cranes, such as the main and auxiliary hoists of truck cranes and tire cranes, such as the hoisting hoist and luffing hoist of crawler cranes. In practical engineering applications, it is often encountered the working condition of the winch being lifted twice. The secondary hoisting of the winch mainly refers to the hoisting operation to realize the hoisting or lowering after the hoisting stops for a period of time. During the working process of the second hoisting of the winch, the phenomenon of hoisting and sliding sometimes occurs. Lifting and falling mainly means that the actual direction or speed of the winch is not controlle...

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): B66D1/40
Inventor 詹纯新刘权黄赞高一平
Owner ZOOMLION HEAVY IND CO LTD
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