Cushion plate self-telescoping device of vertical supporting leg of crane

A technology of vertical outriggers, cranes, applied in the direction of hoisting devices, lifting equipment braking devices, transportation and packaging

Inactive Publication Date: 2013-07-10
ANHUI LIUGONG CRANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a self-expanding device for the backing plate of the vertical leg of the crane. The self-expanding device for the backing plate of the pre...

Method used

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  • Cushion plate self-telescoping device of vertical supporting leg of crane
  • Cushion plate self-telescoping device of vertical supporting leg of crane
  • Cushion plate self-telescoping device of vertical supporting leg of crane

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] The self-retracting device of the backing plate of the vertical outrigger of the crane, such as figure 1 and figure 2 As shown, it includes a fixed frame 1, a backing plate assembly 2, a backing plate spring 3, a tension rod 4, a tension rod spring 5 and a connecting rod 6;

[0029] The fixed frame 1 is in the shape of a clamp, such as Figure 3 ~ Figure 5 As shown, it includes a base 11 and a reinforcing plate 12. The base 11 is two mutually symmetrical semicircular annular plates, the reinforcing plate 12 is two mutually symmetrical semicircular annular plates, and each of the two ends of the reinforcing plate 12 has a folded plate extending outward. 13. There are bolt holes on the folding plate 13, the inner diameter of the reinforcing plate 12 is equal to the outer diameter of the base 11, the reinforcing plate 12 is welded outsid...

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PUM

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Abstract

The invention discloses a cushion plate self-telescoping device of a vertical supporting leg of a crane. The cushion plate self-telescoping device comprises a fixed frame, a cushion plate assembly, a cushion plate spring, a tension rod, a tension rod spring and a connecting rod, wherein the fixed frame is locked on a piston rod of the vertical supporting leg of the crane; the cushion plate assembly is connected with the head of the piston rod of the vertical supporting leg; one end of the cushion plate spring is connected to the cushion plate assembly, and the other end of the cushion plate spring is connected to the fixed frame; one end of the connecting rod is connected to a connecting rod bracket of the cushion plate assembly, and the other end of the connecting rod is a free end; a third bearing is arranged at the free end; a first bearing of the fixed frame is positioned in a waist-shaped hole in the middle of the connecting rod; one end of the tension rod is connected to the fixed frame, and the other end of the tension rod is pressed against a cushion plate; and one end of the tension rod spring is connected to the fixed frame, and the other end of the tension rod spring is connected to the middle of the tension rod. According to the device, the cushion plate can automatically extend and retract, and solves the problems of time and labor wasting caused by manual positioning and placement of the cushion plate as well as the problems of high possibility of loss of the cushion plate which does not contract and low driving safety caused by extending of the cushion plate out of the crane.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing, in particular to a backing plate self-expanding device for a vertical leg of a crane. Background technique [0002] In order to increase the stability of the lifting operation, the outer dimensions of the backing plates of the vertical outriggers of medium and large tonnage truck cranes are larger, but the outer width of the vehicle is generally fixed, so the prior art generally uses the vertical outriggers of the crane The backing plate is made into a movable type, that is, although it is connected with the vertical outrigger, it is not fixed and positioned. When lifting operations are required, the backing plate is pulled out and aligned under the vertical outrigger. When the truck crane does not need to perform mid-term work When lifting the backing plate, retract the backing plate and push it into the car. This form of backing plate has the following disadvantages: In order t...

Claims

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Application Information

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IPC IPC(8): B66C5/00
Inventor 莫思剑张宗山汪阳王高峰
Owner ANHUI LIUGONG CRANE
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