Intelligent front clamping type jack enabling construction to be achieved conveniently
A jack and front clamping technology, applied in the direction of the lifting device, etc., can solve the problems of large volume at the front end of the jacking, inability to install the jack, complex structure, etc., and achieve the effect of simple structure, small working support surface and convenient construction
Active Publication Date: 2015-09-16
柳州泰姆预应力机械有限公司
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Problems solved by technology
[0002] The traditional jack includes an oil cylinder, a piston and a bushing. The piston drives the bushing to move to tension the steel strand. Occasionally, due to the small supporting surface, it is impossible to install a jack for construction
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[0013] Such as figure 1 As shown, the return cylinder 11 is fastened to the front end of the tension cylinder 13, its outer diameter is smaller than the outer diameter of the tension cylinder 13, and its centerline is coaxial with the centerline of the tension cylinder 13; the front end of the bushing 12 is Ladder structure, the oil cavity B of the return cylinder is formed between the step and the return cylinder, and the wall of the step is the pushing force surface of the return cylinder; the rear end of the bushing 12 is fastened with a sealing plug 14, and the sealing plug The tension cylinder oil cavity A is formed between the side wall of 14 and the tension cylinder, and the side wall of the sealing plug 14 is the force-bearing surface of the tension cylinder.
[0014] The front end of the return cylinder 11 is fixedly connected with a baffle plate 1 with a through hole, and the inner hole of the front end of the through-hole sleeve 12 is equipped with a top plate 2, a ...
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Disclosed is an intelligent front clamping type jack enabling construction to be achieved conveniently. A kicker cylinder is fastened to the front end of a tensioning cylinder, the outer diameter of the kicker cylinder is smaller than that of the tensioning cylinder, and the center line of the kicker cylinder is coaxial with that of the tensioning cylinder; the front end of a hollow sleeve is of a stepped structure, and the stepped wall serves as the pushing driving surface of the kicker cylinder; a sealing plug is fastened to the rear end of the hollow sleeve, and the side wall of the sealing plug serves as the pushing driving surface of the tensioning cylinder. The jack has the advantages that a piston is omitted, structure is extremely simple, the working supporting surface of the front end is small, the jack is suitable for various construction occasions, construction is convenient, steel strands are saved, and the jack is especially suitable for prestresstension construction sites where space is limited.
Description
technical field [0001] The invention relates to a jack in the technical field of prestress application, in particular to an intelligent front clamping jack which is convenient for construction. Background technique [0002] The traditional jack includes an oil cylinder, a piston and a bushing. The piston drives the bushing to move to tension the steel strand. Occasionally, due to the small supporting surface, it is impossible to install a jack for construction. Contents of the invention [0003] The object of the present invention is to provide an intelligent front clamping jack that cancels the piston, and the return cylinder and the tension cylinder respectively drive the through sleeve to move to realize tension and save steel strands, which is convenient for construction. [0004] The solution of the present invention is this: [0005] An intelligent front clamping jack convenient for construction, including a return cylinder, a tension cylinder, and a through sleeve...
Claims
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IPC IPC(8): B66F3/43
CPCB66F3/43
Inventor 李建强杨帆
Owner 柳州泰姆预应力机械有限公司