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Wheel crane mobile counterweight

A technology of wheeled crane and counterweight frame, which is applied to cranes and other directions, can solve the problems of boom length, luffing and hoisting weight restrictions, and achieve the effect of not affecting passability and safety, and improving driving safety.

Inactive Publication Date: 2009-06-03
艾凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, wheeled cranes are constrained by conditions such as self-weight and boom slenderness ratio, so that the length, luffing and lifting capacity of the boom are limited.

Method used

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  • Wheel crane mobile counterweight

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] As shown in the picture: after the wheeled crane arrives at the work site, after putting down the outriggers, the following steps can be followed

[0026] 1. Lower and shrink the cab 8, and loosen the counterweight fixing device 10.

[0027] 2. According to the movable boom to be used, install the movable boom hoist 7 steel wire rope at the arm end.

[0028] 3. Raise the boom and put down the folding boom support 9.

[0029] 4. Move the counterweight 1 along with the counterweight frame 3 along the telescopic counterweight frame 4 and the fixed counterweight frame 5 to a suitable position according to the requirements of the hoisting weight, boom height and amplitude, and obstacles within the radius of gyration.

[0030] 5. During the operation, the main boom hoist 6 and the movable boom hoist 7 tighten or loosen the wire rope synchron...

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Abstract

Wheel crane mobile counterweight relates to a wheel crane. In order to improve the structure form of the wheel crane counterweight, reduce the self-weight of a suspension arm, increase lift height, increase amplitude and hoisting, in the invention, the counterweight moves backwards following a counterweight framework along with a retractable counterweight framework and a fixed counterweight framework; the horizontal distance from the gravity force of the counterweight to a turret is increased; the stresses of the front and back supporting points of the turret reaches a relative balance by increasing the external load of the turret; and the steel wire ropes of a main suspension arm hoisting machine and a movable suspension arm hoisting machine are respectively connected with the ends of the suspension arm; due to the switch and the steel wire rope static locking device of the hoisting machine that linked with the counterweight and the suspension arm, the counterweight, the suspension arm and the turret keep a triangular structure, thus preventing the counterweight framework and the suspension arm from being bent and improving the overall stability of the crane; by applying a retractable cab, a foldable suspension arm support and a counterweight fixed device, the safety and flexibility of the crane is not effected by the movable counterweight.

Description

technical field [0001] The invention relates to a wheeled crane, in particular to a mobile counterweight device for the wheeled crane. technical background [0002] Wheeled cranes are widely used with good mobility. However, wheeled cranes are constrained by conditions such as self-weight and boom slenderness ratio, which limit the length, luffing and lifting capacity of the boom. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned wheeled cranes, improve the counterweight structure of the wheeled crane, lengthen the horizontal distance between the counterweight and the turntable, connect the counterweight and the arm end through the hoist wire rope, and make the counterweight, the boom and the turntable Maintain the triangular structure, prevent the counterweight frame and boom from bending, improve the overall stability of the crane, reduce the dead weight of the boom, increase the lifting height...

Claims

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Application Information

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IPC IPC(8): B66C23/76B66C23/36
Inventor 艾凯
Owner 艾凯
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