Speed increasing telescopic mechanism of boom

A technology of telescopic mechanism and jib, applied in cranes and other directions, can solve problems such as affecting the weight of tree grabbing and lifting, affecting the efficiency of grabbing forest trees, etc.

Pending Publication Date: 2020-02-04
ANHUI LIUGONG CRANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some working conditions, if the excavator is equipped with a boom for tree grabbing in forest farms, the telescoping speed of the boom ...

Method used

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  • Speed increasing telescopic mechanism of boom
  • Speed increasing telescopic mechanism of boom
  • Speed increasing telescopic mechanism of boom

Examples

Experimental program
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Embodiment Construction

[0025] Such as Figures 1 to 5 Shown (in order to clearly understand the internal structure of the speed-up telescopic mechanism of the boom, figure 2 The master section arm 51 is omitted in image 3 In the main section arm 51 and the retraction wire rope 6 are omitted, Figure 4 The main section arm 51 and the extended steel wire rope 7 are omitted in the Figure 5 Omit the main section arm 51, the second section arm 52, the telescopic oil cylinder 1, the pulley assembly, the winding assembly, stretch out the wire rope 7 and retract the wire rope 6).

[0026] The jib of the crane in this embodiment includes a main section arm 51, a second section arm 52 and two secondary section arms. Inside, the two sub-section arms are three-section arms 53 and four-section arms 54 respectively.

[0027] The speed-up telescopic mechanism of the boom comprises a telescopic oil cylinder 1, a pulley assembly, a winding assembly, a steel wire rope 7 stretched out, a retraction steel wire r...

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PUM

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Abstract

The invention discloses a speed increasing telescopic mechanism of a boom. The mechanism comprises a telescopic oil cylinder, a pulley assembly, a winding assembly, an extending-out steel wire rope and a retraction steel wire rope. A cylinder body of the telescopic oil cylinder is fixed to a main section arm, an extending-out pulley and a retraction pulley of the pulley assembly are supported on abase, the base of the pulley assembly is fixedly connected with the end of a piston rod of the telescopic oil cylinder, a first transmission winding block and a second transmission winding block of the winding assembly are fixedly connected to the side walls of a two-section arm, one end of the reaction steel wire rope is fixed to the main section arm, the other end of the reaction steel wire rope winds around the reaction pulley of the pulley assembly and the first transmission winding block and is fixed to the main section arm, one end of the extending-out steel wire rope is fixed to the main section arm of the boom, and the other end of the extending-out steel wire rope winds around the extending-out pulley of the pulley assembly and the second transmission winding block and is fixed to the main section arm. The speed increasing telescopic mechanism has the beneficial effects that engineering machine light-weight rapid lifting loading needs under some working conditions can be met,the telescopic speed of the boom can be improved, and the weight potential of the telescopic mechanism is reduced.

Description

technical field [0001] The invention relates to a speed-up and telescopic mechanism of a boom. Background technique [0002] At the present stage at home and abroad, taking the boom on the truck crane as an example, the telescopic mechanism in the boom is generally placed in the innermost arm tube, and the second-section boom is directly connected to the telescopic cylinder tube, which is synchronously expanded and contracted with the oil cylinder. It is consistent with the telescopic speed of the telescopic oil cylinder in the telescopic mechanism, and the telescopic mechanism is generally longer in length and heavy in weight according to the telescopic length of the boom. In some working conditions, if the excavator is equipped with a boom for tree grabbing in forest farms, the telescoping speed of the boom will greatly affect the work efficiency of grabbing trees, and the weight of the boom itself will also affect the tree grabbing. hanging weight. Contents of the inve...

Claims

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Application Information

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IPC IPC(8): B66C23/693
CPCB66C23/703B66C23/705
Inventor 毛江霞单心泽张盛楠
Owner ANHUI LIUGONG CRANE
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