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Jacking mechanism, jacking method and tower crane with jacking mechanism

A jacking mechanism and jacking technology, applied to cranes and other directions, can solve the problems of low lifting efficiency of climbing frames

Active Publication Date: 2013-12-18
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] During the working process of the climbing frame 10', the climbing frame 10' cannot be lifted when the climbing cylinder 11' shrinks, thus resulting in low lifting efficiency of the climbing frame

Method used

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  • Jacking mechanism, jacking method and tower crane with jacking mechanism
  • Jacking mechanism, jacking method and tower crane with jacking mechanism
  • Jacking mechanism, jacking method and tower crane with jacking mechanism

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Embodiment Construction

[0030] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0031] Such as Figure 2 to Figure 7 As shown, according to an embodiment of the present invention, the jacking mechanism includes a climbing frame 11, a first jacking device 12 and a second jacking device 13, and the first jacking device 12 and the second jacking device 13 are all fixedly connected to the climbing frame. Rack 11. The second jacking device 13 enters the jacking preparation state when the first jacking device 12 is jacking up; the first jacking device 12 enters the jacking preparation state when the second jacking device 13 is jacking up, and the first jacking device 12 and the second jacking device 13 alternately jack up the climbing frame 11.

[0032] During the jacking process o...

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Abstract

The invention provides a jacking mechanism, a jacking method and a tower crane with the jacking mechanism. The jacking mechanism comprises a climbing frame (11), a first jacking device (12) and a second jacking device (13), wherein the first jacking device (12) is fixedly connected to the climbing frame (11); and the second jacking device (13) is fixedly connected to the climbing frame (11) and enters a jacking readiness state when the first jacking device (12) jacks the climbing frame (11). The first jacking device (12) enters a jacking readiness state when the second jacking device (13) jacks the climbing frame (11), and the first jacking device (12) and the second jacking device (13) alternately jack the climbing frame (11). Jacking efficiency of the jacking mechanism can be effectively improved.

Description

technical field [0001] The invention relates to the field of construction hoisting machinery, in particular to a jacking mechanism, a jacking method, and a tower crane with the jacking mechanism. Background technique [0002] In the construction lifting operation, the climbing frame is used to perform standard section addition and subtraction operations on the tower crane, so it plays an important role in the tower crane. [0003] The lifting operation of the climbing frame of the existing tower crane is as follows: figure 1 As shown, the climbing frame 10' is generally single-sided and single-cylinder jacking, and the oil cylinder 11' stretches and retracts once to complete a jacking stroke (such as figure 1 4 steps shown), the specific working process is as follows: [0004] 1. Stretch the oil cylinder and lift it up; [0005] 2. Receiving cylinder; [0006] 3. Extend the oil cylinder for the second time and lift it up; [0007] 4. Retract the oil cylinder for the sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/62
Inventor 李建华
Owner ZOOMLION HEAVY IND CO LTD
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