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Cantilever crane rotating speed control method, device, system and engineering machinery

A technology of rotation speed and control method, which is applied in the field of device, boom rotation speed control method, system and construction machinery, can solve the problems of inability to adjust in real time, affect equipment construction efficiency, low boom rotation speed, etc. The effect of ensuring safety and improving rotation efficiency

Active Publication Date: 2016-07-27
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Embodiments of the present invention provide a boom rotation speed control method, device, system and construction machinery to solve the problem in the prior art that the boom rotation speed is set too low and cannot be adjusted in real time, thereby affecting the construction efficiency of the entire equipment

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  • Cantilever crane rotating speed control method, device, system and engineering machinery
  • Cantilever crane rotating speed control method, device, system and engineering machinery
  • Cantilever crane rotating speed control method, device, system and engineering machinery

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Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of patent protection of the present invention.

[0055] During the horizontal rotation of the boom, in order to avoid collisions between the boom and the people and buildings on the construction site, the horizontal rotation speed of the boom needs to be limited according to the specifications (that is, when the boom is horizontally rotated, the maximum level of the jib at the end position The speed of movement is not greater than 1.5m / s), that is to say, the maximum control current of the rotary pr...

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Abstract

The invention discloses a cantilever crane rotating speed control method, device, system and engineering machinery. The cantilever crane rotating speed control method, device, system and engineering machinery guarantee cantilever crane rotation safety, improve cantilever crane rotation efficiency and are convenient for operation. The method comprises acquiring inclined angles of arm sections of a cantilever crane relative to the plane under the current work conditions, wherein the inclined angles are angles of the arm sections rotating around a head end hinge joint along an anticlockwise direction and relatively to the plane, determining horizontal distances of the tail ends of the arm sections and the center line of a rotary table under the current work conditions according to lengths of the arm sections and the acquired inclined angles of the arm sections, ensuring the largest horizontal distance and calculating a current maximal admission control current of a rotary proportional valve according to the largest horizontal distance.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a method, device, system and construction machinery for controlling the rotation speed of a boom. Background technique [0002] With the rapid development of the construction industry, high-speed rail and other fields, various construction vehicles with jib equipment are widely used. Such vehicles are usually equipped with jibs. The shaft is hinged, and there is a boom cylinder connected between two adjacent joint arms. The boom cylinder can drive the two adjacent joint arms connected to the boom cylinder to rotate a certain angle around the connecting shaft to realize the folding and folding of the joint arm. Open. At the same time, the boom consisting of multiple joint arms is fixed on the machine base through the turntable. Driven by the turntable, the boom can rotate 360 ​​degrees around the vertical axis perpendicular to the horizontal plane (that is, horizon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/86B66C13/20
Inventor 曾中炜
Owner ZOOMLION HEAVY IND CO LTD
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