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Internal-climbing and jacking apparatus of tower crane, control method and tower crane

A technology of tower crane and jacking device, applied in cranes and other directions, can solve the problem of low working efficiency of inner climbing jacking device, and achieve the effect of reducing labor intensity and improving automation

Active Publication Date: 2014-05-28
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an inner climbing and jacking device of a tower crane, a control method and the tower crane, which are used to solve the problem of low working efficiency of the inner climbing and jacking device existing in the prior art

Method used

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  • Internal-climbing and jacking apparatus of tower crane, control method and tower crane
  • Internal-climbing and jacking apparatus of tower crane, control method and tower crane
  • Internal-climbing and jacking apparatus of tower crane, control method and tower crane

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Experimental program
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Effect test

Embodiment 1

[0046] continue to refer image 3 , Figure 4 , Figure 5 , Image 6 as well as Figure 7 , the telescoping mechanism includes two small oil cylinders 9 connected by cylinders, and the piston rods 91 of the two small oil cylinders 9 are respectively connected with the cylinders of the corresponding jacking cylinders 1. Specifically, the cylinders of the two small oil cylinders 9 are respectively fixedly arranged On the small oil cylinder mount 10, two small oil cylinders 9 are fixedly connected together by the small oil cylinder mount 10, or one end of the two small oil cylinders 9 cylinder bodies is hinged away from its piston rod. Two piston rods 91 are connected with the cylinder body of corresponding jacking cylinder 1 through chain 12, meanwhile, the cylinder body of jacking cylinder 1 is provided with the concave seat 11 that cooperates with the piston rod 91 of small oil cylinder 9. When the piston rod 91 of the small oil cylinder 9 was stretched out, the top of the...

Embodiment 2

[0050] Such as Figure 8 as shown, Figure 8 Another structure of the telescopic mechanism is shown, and the telescopic mechanism includes connecting rods 15 respectively hinged to the cylinder body of each jacking cylinder 1, and the two connecting rods 15 are hingedly connected, and are arranged on the tower body standard The drive cylinder 16 on the platform in the section, and the top end of the piston rod of the drive cylinder 16 is hinged at the hinge between the two connecting rods 15. When the piston rod of the drive cylinder 16 shrinks, the jacking cylinder 1 is pulled close to the The direction of the tower body is rotated to the jacking position and locked, and when the piston rod of the drive cylinder 16 stretches out, the jacking cylinder 1 is pushed to rotate away from the tower body.

[0051] Specifically, the driving cylinder 16 is connected to the pumping station 14 that drives the jacking cylinder 1, and the driving cylinder 16 is driven by the pumping stati...

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Abstract

The invention discloses an internal-climbing and jacking apparatus of a tower crane, a control method and the tower crane. The internal-climbing and jacking apparatus comprises an internal-climbing frame spandrel girder fixedly arranged on a wall, an internal-climbing frame arranged on the internal-climbing frame spandrel girder, jacking cylinders symmetrically hinged onto the internal-climbing frame and two sets of step-changing device used for supporting a tower body and symmetrically hinged onto two ends of the internal-climbing frame spandrel girder, wherein the piston rod of each jacking cylinder is connected with a jacking crossbeam, and a telescoping mechanism used for driving two jacking cylinders to rotate towards a direction close to the tower body and to rotate towards a direction away from the tower body is arranged between and connected with the cylinder bodies of the two jacking cylinders. Thus, since the telescoping mechanism pushes and pulls the jacking cylinders in the process of jacking, the automation degree of the internal-climbing and jacking apparatus is increased, and labor intensity of workers during jacking is reduced; meanwhile, since the telescoping mechanism locks the jacking cylinders, the jacking cylinders are prevented from rotating towards the direction away from the tower body during jacking, thereby improving safety during jacking.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an internal climbing and jacking device of a tower crane, a control method and the tower crane. Background technique [0002] Such as figure 1 with figure 2 as shown, figure 1 It shows the structure of the internal climbing and jacking device before jacking, figure 2 It shows the structure of the inner climbing and jacking device during jacking. At present, during the inner climbing and jacking process of the tower crane, the jacking cylinder 1 and the jacking beam 2 are tilted outwards before jacking. When lifting, the jacking oil cylinder 1 and the jacking crossbeam 2 must be manually pulled to straighten the jacking oil cylinder 1, and the above steps need to be repeated every time a step is lifted. Pushing and pulling the jacking cylinder 1 and the jacking beam 2 all need to be operated by at least 4 people in the air. [0003] The defect of the prior art...

Claims

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Application Information

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IPC IPC(8): B66C23/62B66C23/80
Inventor 贺生龙符亮
Owner ZOOMLION HEAVY IND CO LTD
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