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Assembled tower type crane with mobile balancing weight system

A tower crane and counterweight technology, applied in cranes and other directions, can solve problems such as heavy additional balance, and achieve the effects of good stress condition, lower cost, and less space occupation

Active Publication Date: 2014-06-11
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the problem of large additional balance weight of super-large tonnage mobile cranes, this invention proposes a link mechanism to adjust the position of the balance weight

Method used

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  • Assembled tower type crane with mobile balancing weight system
  • Assembled tower type crane with mobile balancing weight system
  • Assembled tower type crane with mobile balancing weight system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Below in conjunction with the accompanying drawings, the tower crane for erecting iron tower construction equipped with a movable counterweight system of the present invention will be further described in detail.

[0037] Such as figure 1 , Figure 4 As shown, a special-purpose tower crane for erecting a transmission line iron tower equipped with a movable counterweight system according to an embodiment of the present invention mainly includes: a steel structure base 1, a jacking frame 2, and a tower body 3. Attachment frame 4, attachment wire rope 5, slewing support device 6, boom 7, hook 8, tower head 9, cable 10, balance arm 11, movable counterweight system 12, boom luffing mechanism 13, Lifting mechanism 14 and control room 15.

[0038] The steel structure base 1 is welded by section steel and steel plate, and installed on the concrete cap. Anchor bolts are pre-embedded when the concrete cap is cast, and the steel structure base 1 and the concrete cap are connect...

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Abstract

The invention provides an assembled tower type crane with a mobile balancing weight system. The assembled tower type crane comprises a steel structure base, a jacking sleeve frame, a tower body, a rotary supporting device, a lifting arm, a lifting hook, a tower head, a pull rope, a balancing arm, a lifting arm amplitude variation mechanism, a lifting mechanism, a control chamber and the mobile balancing weight system, wherein the balancing weight system comprises a balancing weight, a balancing weight bearing trolley, a balancing weight traction mechanism, a traction steel wire rope, a steering pulley and a control system; the balancing weight bearing trolley bears the balancing weight to move along the balancing arm; the mobile balancing weight can reduce unbalanced torque on the tower body and improve the stress condition of the tower body, so that the hoisting capacity of the tower crane is improved or under the same hoisting capacity, the sectional size and the weight of the tower body are reduced; and therefore, the processing cost is lowered, and transportation, mounting, dismounting and on-site carrying are facilitated. The assembled tower type crane has the advantages of small structural size and light weight of the tower body, high safety, flexibility in lifting, high construction efficiency and the like and can meet an assembling requirement on all types of power transmission line iron towers with various voltage levels.

Description

technical field [0001] The invention belongs to the field of construction equipment for overhead transmission lines, and in particular relates to a special tower crane installed with a movable counterweight system for erecting transmission line iron towers. Background technique [0002] The erection construction of poles and towers is a construction link with heavy workload, high construction difficulty and many risk factors in the construction of transmission lines. At present, large mobile cranes or helicopters are mainly used for tower construction in foreign countries. For example, the United States, Canada and other countries have generally used large mobile cranes or helicopters for tower construction, while the main equipment for domestic tower construction is various forms of poles. The poles for power transmission and transformation construction (including single poles, rocker poles, etc.) are light and small lifting equipment. They are simple lifting equipment comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/76B66C23/16B66C23/64B66C23/82B66C23/84
CPCB66C23/72B66C23/26
Inventor 孙竹森张强李明乐波缪谦夏拥军秦剑胡春华马一民张金淼郝玉靖胡凤英
Owner STATE GRID CORP OF CHINA
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