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Nuclear power station hoisting trolley with double steel wire rope winding systems in shape of Chinese character 'pin'

A lifting trolley and wire rope technology, applied in the field of nuclear power plant crane trolleys, can solve the problems of uneconomical, large pulley diameter, drum torque and other parameters, large driving capacity of a single motor, etc., achieving a wide range of applications, reducing equipment manufacturing and maintenance. cost effect

Active Publication Date: 2015-12-09
DALIAN HUARUI HEAVY IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the further improvement of the power generation capacity of nuclear power plants, the maximum dangerous load hoisted by the ring crane has reached more than 350t. The lifting trolley adopts the above-mentioned conventional single-drum double-down rope or double-drum single-down rope hoisting mechanism, which will lead to wire rope diameters, coils, etc. Excessive parameters such as cylinder diameter, pulley diameter, and reel torque will lead to excessive driving capacity required by a single motor, reducer, etc., so that the model selection of components is too large, which has the disadvantages of being uneconomical and unscientific

Method used

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  • Nuclear power station hoisting trolley with double steel wire rope winding systems in shape of Chinese character 'pin'
  • Nuclear power station hoisting trolley with double steel wire rope winding systems in shape of Chinese character 'pin'
  • Nuclear power station hoisting trolley with double steel wire rope winding systems in shape of Chinese character 'pin'

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 5 , 6 , 7 shown. The nuclear power plant lifting trolley of the double-shaped steel wire rope winding system includes a trolley frame 9, a lifting drive mechanism 10, a wire rope winding system 11, a trolley running mechanism 12 and a spreader. The spreader includes a hook and a bracket 13, and the hook is installed on At the center of the support 13, the two sides of the support 13 are divided into eight lifting position areas, which are respectively area I1, area II2, area III3, area IV4, area V5, area VI6, area VII7 and area VIII8, wherein area I1, area VI6, area VII7 and area IV4 are arranged in sequence on one side, area V5, area II2, area III3 and area VIII8 are arranged in sequence on the other side, and there are two sets of lifting drive mechanisms 10, which are composed of motors and reducers Composition, the lifting drive mechanism 10 is installed on the trolley frame 9, the trolley running mechanism 12 is installed at both ends of the troll...

Embodiment 2

[0033]It is basically the same as Embodiment 1, except that the transition pulley block I4.1 is a balance beam I4.1-1, the transition pulley block IV4.4 is a balance beam IV4.4-1, and the steel wire rope I6.1 is on the balance beam I4.1-1 It is divided into 2 pieces, the wire rope I-16.1-1 in front of the balance beam I4.1-1, the wire rope I-26.1-2, the wire rope I-16.1-1 and the wire rope I-26.1 behind the balance beam I4.1-1 -2 is connected to both ends of the balance beam I4.1-1; the wire rope II6.2 is divided into two at the balance beam IV4.4, the wire rope II-16.2-1 is in front of the balance beam IV4.4, and the back of the balance beam IV4.4 The steel wire rope II-26.2-2, the steel wire rope II-16.2-1 and the steel wire rope II-26.2-2 are connected to both ends of the balance beam IV4.4. Such as Figure 9 shown.

Embodiment 3

[0035] It is basically the same as embodiment 2, except that the reel group I1.1 or reel group II1.2 is a double-drum single-down rope mode in which each reel is wound with a steel wire rope, and the steel wire rope 6.1 is wound on the reel group I-11.1 -1 and drum set I-21.1-2, the wire rope 6.2 is wound on drum set II-11.2-1 and drum set II-21.2-2. Such as Figure 10 shown.

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Abstract

A nuclear power station hoisting trolley with double steel wire rope winding systems in a shape of Chinese character 'pin' comprises a trolley frame, a lifting driving mechanism, a steel wire rope winding system, a trolley running mechanism and a lifting appliance. Each steel wire rope winding system comprises a winding drum, an upper pulley set, a lower pulley set, a transition pulley set and steel wire ropes; one ends of the steel wire ropes are wound on the winding drum, and the other ends of the steel wire ropes wind around the lower pulley set, the upper pulley set and the transition pulley set and finally are wound on a winding drum set; and two shapes of Chinese character 'pin' which have one horizontal stroke on one side and two horizontal strokes on the other side are formed on the lifting position area of the lower pulley set, and the nuclear power station hoisting trolley with the steel wire rope winding systems in the shape of Chinese character 'pin' is formed. The nuclear power station hoisting trolley has the beneficial effects that the system is suitable for large-lifting-weight nuclear station crane trolleys, the driving capacity needed by a single electric motor, a speed reducer and the like is reduced, the equipment manufacturing and maintenance cost is reduced, the application range is wide, and the trolley can be used for a nuclear station circle crane and a spent fuel container crane and also can be used for other cranes which are used for lifting and transporting dangerous loads and need to achieve single failure protection.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant cranes, in particular to a nuclear power plant crane trolley with a single fault protection function for a hoisting mechanism. Background technique [0002] Ring cranes and other equipment in nuclear power plants lift dangerous loads. The wire ropes of the hoisting mechanism of the trolley adopt a cross-winding method. When one wire rope breaks, the remaining wire ropes can reliably and safely support the dangerous load. by Figure 11 Take the spreader in the example as an example, the cross winding of the single-row lower pulley group spreader means that one wire rope is wrapped around the pulleys in the 1 and 4 areas of the spreader, and the other steel wire is wrapped around the pulleys in the 2 and 3 areas; or a steel wire is wound The pulleys in areas 1 and 3 of the spreader group, and another steel wire rope is wound around the pulleys in areas 2 and 4, so that the tension of a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C11/16
Inventor 徐宏伟苏冬吴克利
Owner DALIAN HUARUI HEAVY IND GRP CO LTD