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Dual-machine loading-and-walking type hydraulic numerical control deck erection gantry and control system and control method

A technology of a control system and a control method, which is applied in the directions of cranes, earth-moving drilling and mining, cable cranes, etc., can solve the problems of difficulty in horizontal transportation of the main girder section of the transverse truss of suspension bridges, and achieve the effects of complete functions, high safety and high work efficiency.

Active Publication Date: 2010-07-28
LIUZHOU OVM MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a double-machine load-carrying hydraulic numerical control cable-spanning crane with large lifting force, high working efficiency and good stability for erecting the main girder of the suspension bridge, so as to solve the problem of difficulty in horizontal transportation of the main girder section of the transverse truss of the suspension bridge; Another object of the invention is to provide a control system for the double-machine load-carrying hydraulic numerical control spanning cable crane used for hoisting the steel truss section of the suspension bridge and erecting the main girder of the suspension bridge, and a method for synchronously controlling the jack by the control system

Method used

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  • Dual-machine loading-and-walking type hydraulic numerical control deck erection gantry and control system and control method
  • Dual-machine loading-and-walking type hydraulic numerical control deck erection gantry and control system and control method
  • Dual-machine loading-and-walking type hydraulic numerical control deck erection gantry and control system and control method

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Experimental program
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Embodiment 1

[0062] A dual-machine load-carrying hydraulic numerical control cable-crossing crane, including 2 sets of cable-crossing cranes and control systems, the said cable-crossing crane is a load-carrying hydraulic numerical control The cable-spanning crane comprises four parts: the main girder 9 of the transverse truss, two sets of walking-type load-carrying devices 2 installed at both ends of the main girder 9 of the transverse truss, the hydraulic lifting equipment 8 and the shoulder pole 6 of the spreader (see figure 1 );

[0063] The main girder 9 of the transverse truss is formed by connecting the two ends of the truss 22 welded by H-shaped steel to the double-door-shaped load beam 23, and the space of the truss is used to place the take-up reel 26, the hydraulic pump station, the main console and the construction personnel. Work platform; The top of double-door glyph load beam 23 is provided with bearing pin 15 (referring to Figure 5 );

[0064] Each set of walking-type loa...

Embodiment 2

[0079] The utility model relates to a method for controlling a jack by a control system of a dual-machine load-carrying hydraulic numerical control cable-span crane used for erecting a main girder of a suspension bridge for load-carrying walk.

[0080] The control of the jack by the control system system is a kind of system control, including remote control mode and local control mode:

[0081] The remote control mode is the highest level of the system, and all operations are completed on the upper computer, that is, the main control computer. At this time, the operations of all on-site controllers are invalid. In this mode, Y×2q lifting jacks, Y×m Traction jacks, Y×P guide rail walking jacks, Y×4n load transfer jacks, for manual or automatic control, to complete the lifting, lowering, anchor tightening, loosening of lifting jacks, forward and backward of traction jacks, guide rail walking jacks The advancement is: push, retreat, effective control of the lifting or lowering of...

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Abstract

The invention provides a dual-machine loading-and-walking type hydraulic numerical control deck erection gantry, which comprises two sets of loading-and-walking type hydraulic numerical control deck erection gantries and a control system, wherein each set of the loading-and-walking type hydraulic numerical control deck erection gantries comprises the following four parts: a transverse truss girder, two sets of walking type loading-and-walking devices arranged at two ends of the transverse truss girder, a hydraulic lifting device and a carrying pole of a hanger; each set of the walking type loading-and-walking devices consists of a guideway, a walking mechanism steel framework, m traction jacks, 4n load conversion jacks, a supporting pull rod, a walking roller bracket and P guideway walking jacks; all the components are connected with one another by pin shafts; and the control system of the deck erection gantry is a distributed computer network control system which consists of a main control station, Y field controllers, Y pump stations, Y pump station starting boxes, a data acquisition system, and a plurality of data wires and communication wires. The deck erection gantry has the advantages of great lifting force and high work efficiency and stability; and when the deck erection gantry walks with load, the control system of the deck erection gantry can effectively and synchronously control every jack.

Description

Technical field: [0001] The invention relates to a long-span suspension bridge mechanized construction equipment, in particular to a suspension bridge main girder erection equipment, a control system and a control method that can solve the horizontal transportation of the main girder section of the transverse truss of the suspension bridge. Background technique: [0002] The cable-spanning crane is the "special equipment for erecting the main girder of the suspension bridge". After continuous improvement and perfection for a hundred years, it has become the safest and most reliable beam-erecting equipment. At present, the single lifting capacity of the cable-spanning crane has reached 500t. The main girder erection method is to use a single-machine single-hang hydraulic spanning cable crane. The function of this single-machine single-hanging spanning cable crane is only vertical lifting. Use steel wire rope to pull and swing, that is, firstly make the cross-cable crane walk ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C21/00B66C13/18B66C13/16B66C15/06E21D21/00
Inventor 唐小萍上官兴肖汝诚刘显晖孙斌谢正元甘秋萍张皓吕振刚李江伟谭柳芳
Owner LIUZHOU OVM MASCH CO LTD
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