A control method, control system and controller for a super-lift winch of a crane
A control method and control system technology, applied to cranes, hoisting devices, spring mechanisms, etc., can solve problems such as breakage, excessive deformation of the main arm, and swinging of the hoisting rope
Active Publication Date: 2021-08-24
SANY AUTOMOBILE HOISTING MACHINERY
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Problems solved by technology
In the process of extending the arm, if the rope is released too slowly, the main arm will be pulled back and deformed too much or even broken; if the rope is released too slowly, the winch rope will swing down
In the process of retracting the arm, if the rope is retracted too slowly, the hoisting rope will swing down; if the rope is retracted too quickly, the main arm will be pulled back and deformed too much or even broken
Method used
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[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0059] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The invention discloses a control method, a control system and a controller of a super-hoisting hoist of a crane, and relates to the technical field of construction machinery. The control method specifically includes acquiring the real-time length L of the main arm 1 and the real-time rope release amount L of the reel 2 ;According to the real-time length L of the main arm 1 The preset length l of the main arm when the main arm is retracted and retracted synchronously with the reel 1 and the reel's preset amount l 2 The length relation of l 2 =f 1 (l 1 ), calculate the target rope release amount L of the reel 2' ;Target lay-off L on the reel 2' and the real-time rope release amount L of the reel 2 When they are not equal, the amount L of the rope will be released in real time 2 Adjust to the target rope release amount L 2' . The control method can effectively determine the retracting and retracting length of the super-hoisting winch on the premise that the telescopic length of the main boom is determined, so that the synchronous movement of the winch and the main boom can be realized, thereby ensuring the safety performance of the crane.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a control method, a control system and a controller for a super-lift winch of a crane. Background technique [0002] With the process of modern industrialization, more and more large-volume, heavy-weight components and devices require cranes for installation, disassembly, and transfer. Truck cranes are more and more used in various occasions due to their small footprint, flexible transition, and fast construction speed. [0003] As an important mechanism of the super-large tonnage barrel jib crane, the superlift can greatly reduce the deflection and side bending of the telescopic boom, and greatly improve the lifting capacity of the equipment. [0004] The superlift is installed on the basic section of the main boom, and there are two basically symmetrical masts, which are placed on the left and right of the main boom. Each mast is equipped with a reel that is wou...
Claims
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IPC IPC(8): B66C23/62B66C13/16B66D1/48
CPCB66C13/16B66C23/62B66D1/48
Inventor 马胜何伟城李松云
Owner SANY AUTOMOBILE HOISTING MACHINERY