Crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and method thereof
A crawler crane and adjustment system technology, applied to cranes and other directions, can solve problems affecting work efficiency, safety hazards, and inability to ensure stable operation, so as to improve work efficiency and stability and prevent rope disorder
Inactive Publication Date: 2012-05-30
昆山三一机械有限公司
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Problems solved by technology
If the oil cylinder is retracted too quickly, the main luffing wire rope will be too loose, which will easily cause the wire rope to be disordered, thus causing a certain safety hazard; if the main luffing winch retracts the wire rope too quickly, it may cause The main luffing mast is broken, or the oil cylinder is bent and other dangerous situations occur
Therefore, due to the above-mentioned defects in the lifting device of the main luffing mast of the crawler crane in the prior art, the crawler crane cannot fully meet the operation requirements of safe construction, seriously affects the improvement of its work efficiency, and cannot guarantee its stable operation.
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[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0021] The invention adds a control system and a pressure adjustment device to the traditional crawler crane main luffing mast operating system, so as to realize the secondary pressure adjustment of the lifting oil cylinder. figure 1 It is a structural diagram of the secondary pressure adjustment system of the main luffing mast of the crawler crane according to the present invention. As shown in the figure, the bottom end of the main luffing mast 1 is fixed on the main platform of the crawler crane, the main luffing hoist 3 is also fixed on the main platform of the crawler crane, and the two ends of the steel wire rope 2 are respectively fixed on the main luffing mast 1 on the top and 3 on the main luffing hoist. The lifting cylinder 4 includes a three-stage oil cylinder, which is placed on the main platform of the crawler crane. . In addition, a pressure ...
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The invention relates to a crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and a method thereof. The system comprises a main amplitude mast, a main amplitude winch, a steel wire rope, a cocked cylinder, a pressure adjustment device and a control system, wherein the cocked cylinder is positioned on the main platform of a crawler crane; the top end of the cocked cylinder is in contact with the main amplitude mast; the control system is positioned on the main amplitude mast near the cocked cylinder; and the pressure adjustment device is connected with the cocked cylinder and the control system. Through the secondary pressure limit, the crawler crane main amplitude mast and cocked cylinder secondary pressure adjustment system and the method thereof of the invention solve the bad problems in the action process of the crawler crane main amplitude, effectively prevent the rope disordering phenomenon of main amplitude steel wire ropes and ensure thatthe amplitude mast and the cocked cylinder are not damaged, thereby enabling the whole crawler crane to achieve the safe construction operation requirements and greatly improving the working efficiency and the stability of the crawler crane.
Description
technical field [0001] The invention relates to the technical field of crawler cranes, in particular to a secondary pressure adjustment system and method for a crawler crane main luffing mast lifting oil cylinder. Background technique [0002] During the specific operation of the crawler crane, when the main luffing mast is lowered, the main luffing winch performs the operation of retracting the wire rope, and at the same time, the oil cylinder will be retracted. If the oil cylinder is retracted too quickly, the main luffing wire rope will be too loose, which will easily cause the wire rope to be disordered, thus causing a certain safety hazard; if the main luffing winch retracts the wire rope too quickly, it may cause Dangerous situations such as main luffing mast breaking, or cranking oil cylinder bending occur. Therefore, due to the above-mentioned defects in the lifting device of the main luffing mast of the crawler crane in the prior art, the crawler crane cannot f...
Claims
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IPC IPC(8): B66C23/62
Inventor 刘保军陈志刚苏令华
Owner 昆山三一机械有限公司