Pipe pile prestressed tensioning machine
A prestressing and tensioning machine technology, applied in the direction of strengthening and forming, can solve the problems of bending deformation, damage, and instability of the tensioning device of the lifting screw rod, and achieve the effect of a stable lifting process
Active Publication Date: 2018-05-01
湖南恒瑞管桩科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a method that can make the lifting screw easily deformed or damaged when the tensioning head is subjected to external force in the prior art, and the tensioning device being lifted is unstable. Lifting tensioning device Stable pipe pile prestressing tensioning machine
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[0024] The present invention will be further described below in conjunction with specific embodiment:
[0025] Such as figure 1 and 2 As shown, the tensioning machine is composed of a tensioning head 302, a jack 301 connected to the tensioning head, a jack hanging device 1, a lifting device 2 and a walking device 6. The tensioning machine is dragged by the traveling device 6 to walk.
[0026] The lifting device 2 of the embodiment of the present invention includes a support 206, a support base 205, a lifting platform 208 and a lifting transmission device. The hanging device 1 is composed of an adjusting screw 101 , an adjusting nut 102 and a hanging 103 . The support 206 is fixedly arranged on the tensioning platform 5, the support seat 205 is arranged on the top of the support 206 and is located above the jack 301, the motor 209 and the reduction box 210 are both arranged on the support seat 205, and one end of the lifting screw 203 is connected to the reduction box 210 o...
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The invention provides a tubular pile prestress tensioning machine which aims at overcoming the defect that a tensioning machine in the prior art is prone to enabling a lifting lead screw to be bent, deform or be damaged to cause a lifted tensioning device to be unstable when the tensioning top is forced by external force. The tubular pile prestress tensioning machine comprises a lifting device and a walking device. The lifting device comprises a support, a supporting seat supported by the support, a lifting bench and a lifting bench reciprocating device. A hoisting device is composed of an adjusting lead screw, an adjusting nut, a hoisting part and a buffer component. One end of the adjusting lead screw is connected with the lifting bench through the adjusting nut, the other end of the adjusting lead screw is connected with the buffer component, the buffer component is connected with a jack through the hoisting part, and the reciprocating device can drive the lifting bench to enable the hoisting device to be raised and lowered. When the tensioning device is raised and lowered, the hoisting device is raised and lowered by the lifting device. Thus, the whole hoisting process is stable.
Description
technical field [0001] The invention relates to a tensioning machine, in particular to a pretensioning method pipe pile prestressing tensioning machine. Background technique [0002] Existing pre-tensioning method prestressed tensioning machine comprises tensioning device, lifting device, forward and backward moving trolley, left and right moving cart etc., tensioning device comprises jack, tensioning head and tensioning head, jack and tensioning head are connected, The pipe pile is stretched by the tensioning device, and the tensioning device is lifted by the lifting device. At present, the lifting device of the tensioning machine mostly adopts a single-point support device, and the support device is arranged under the jack, and the top of the lifting screw rod is connected with the lower end of the jack, and the jack is lifted by the screw rod. With this structure, when an external force acts on the tensioning head, since the lifting screw rod is rigidly connected with th...
Claims
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IPC IPC(8): B28B21/60
CPCB28B21/60
Inventor 李新社张俊伟毛家国
Owner 湖南恒瑞管桩科技有限公司