Control method and controller for crane and its composite actions of crane

A technology of compound action and control method, applied in the field of controller, crane and its compound action control method, can solve the problems of stop action, failure of pressure reducing valve, inconsistency, etc. The effect of improving stability
CN102079482AActive Publication Date: 2011-06-01XUZHOU HEAVY MASCH CO LTD
0 Cites 16 Cited by

Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Applications(China)
Current Assignee / Owner
XUZHOU HEAVY MASCH CO LTD
Publication Date
2011-06-01

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a control method of composite actions of a crane, which is used for controlling total flow of hydraulic oil to be distributed to multiple actuators. The liquid-feeding flow of each actuator is controlled by regulating the opening of a control valve; and the motion speed of at least one actuator is obtained in real time by using the control method, and the judgment result of regulating the opening of the valve port of the controller valve used for controlling the liquid-feeding flow of each actuator is obtained according to the fact that whether the motion speed of at least one actuator meets preset judgment conditions. Through the analysis of engineering mechanical composite actions, the preset judgment conditions of regulating the opening of the vale port of the control valve are determined, thereby effectively controlling the flow distribution from the total flow to the actuators based on the motion speeds of the actuators in real time. In addition, the invention also provides a controller and the crane with the controller.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the compound action control technology of engineering machinery, in particular to a crane and its compound action control method and controller. Background technique

[0002] With the acceleration of the pace of social development, the requirements for various construction machinery are not limited to basic working performance such as safety and reliability. How to improve operating efficiency has become the key point of optimal design, especially, reasonably design compound movements and improve their operability.

[0003] Taking the construction crane as an example, it has the basic actions of walking the whole machine, turning on the car, extending and retracting the boom, luffing the boom, and lifting and lowering the hook. In order to meet the needs of actual working conditions, the combination of the aforementioned basic actions can effectively improve the operating efficiency of the crane, thereby greatly shortening the...

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