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Deck unit erection gantry

A cable-mounted crane and hoist technology, which is applied in the field of cable-mounted cranes, can solve the problems of difficult operation, numerous moving procedures, huge winch and wire rope hoisting system, etc., and achieves the effects of convenient operation, low cost and reasonable stress.

Inactive Publication Date: 2009-10-21
GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resulting in bulky load-bearing structure, hoist and wire rope hoisting system
As a result, there are many installation and moving procedures and difficult operations, especially when hoisting requires four-point lifting speed synchronization

Method used

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  • Deck unit erection gantry
  • Deck unit erection gantry
  • Deck unit erection gantry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, a cable-loaded crane includes two towers 18, a hoist 1, a lifting block 2, and a load-bearing cable 3. The hoist 1 is located on the top of the tower 18, and the load-bearing wire 3 and the two towers 18 The top of the hoist 1 drives the lifting block 2 to slide along two parallel bearing cables 3 through the traction rope 15. The lifting block 2 is composed of two end beams 4, a load beam 5, a fixed pulley 6, The movable pulley 7 is composed of a fixed pulley 6 arranged on the load-bearing beam 5, and a suspension rope 8 is wound on the fixed pulley 6 and the movable pulley 7. The two ends of 5 form a steel pin hinged connection form with the end beam 4 through the hinge base 9; The connection point is located at the center of gravity of the shoulder pole beam 10, and the purpose is to hoist the suspended object, that is, the steel box girder section 14 horizontally. The two ends of the loa...

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Abstract

The invention discloses a deck unit erection gantry. The gantry comprises two towers, a winding engine, a lifting pulley and track ropes, wherein the winding engine is arranged on tops of the towers; the track ropes are connected with the tops of the two towers; the winding engine slides along two parallel track ropes through driving the lifting pulley by a hauling cable; the lifting pulley consists of two end girders, a load bearing cross beam, a fixed pulley and a movable pulley; the fixed pulley is arranged on the load bearing cross beam; lifting ropes are wound on the fixed pulley and the movable pulley. The deck unit erection gantry is characterized in that each upper surface of the two end girders is provided with a hinge base; two ends of the load bearing cross beam are connected with hinges of the end girders through the hinge bases; the movable pulley and a carrying-pole beam are connected and have a connection point positioned on the gravity center of the carrying-pole beam. The deck unit erection gantry has reasonable stress of bearing structure, simple structure, convenient operation, low cost and safe construction, and is particularly convenient for lifting and mounting a large steel box girder prefabricated structural element of a suspension bridge.

Description

technical field [0001] The invention relates to a crane equipment used in the process of hoisting and installing prefabricated structural parts or building materials of large buildings in large civil engineering, especially a cable-loaded crane for hoisting prefabricated beam segments of large suspension bridges. Background technique [0002] Cable cranes are mostly used for lifting and installing suspension bridge box girder segments, such as steel box girder segments or concrete box girder segments. The cable-loaded crane usually relies on the two structures of the suspension bridge installed in advance, uses the main cable as the bearing point, uses the vertical lifting of the box girder section directly under the main cable, and articulates with the sling on the main cable. The cable-mounted crane should have the following main functions: (1) It can realize fixed vertical hoisting in the horizontal section and inclined section of the main cable; Structure. [0003] The...

Claims

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Application Information

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IPC IPC(8): B66C21/00E01D21/00
Inventor 刘宏波谭立心李斌冯炳生吴聪钱亮钟建锋何畅焉生全黄德明
Owner GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG
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