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Lifting trolley for nuclear power plant with double rectangular steel wire rope down guide rope winding system

A lifting trolley and wire rope technology, applied in the direction of the spring mechanism, hoisting device, etc., can solve the problems of pulley diameter, large drum torque, large driving capacity of a single motor and reducer, uneconomical, etc., and reach the application range. The effect of reducing equipment manufacturing and maintenance costs

Active Publication Date: 2017-06-16
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 mechanism of the conventional double-down rope form of the hoisting trolley will cause parameters such as wire rope diameter, drum diameter, pulley diameter, and drum torque. If it is too large, the driving capacity required by a single motor, reducer, etc. will be too large, so that the model of the component selection is too large, which has the disadvantages of being uneconomical and unscientific

Method used

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  • Lifting trolley for nuclear power plant with double rectangular steel wire rope down guide rope winding system
  • Lifting trolley for nuclear power plant with double rectangular steel wire rope down guide rope winding system
  • Lifting trolley for nuclear power plant with double rectangular steel wire rope down guide rope winding system

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Experimental program
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Effect test

Embodiment 1

[0031] Such as Figure 5 , 6 , 7 shown. The nuclear power plant lifting trolley of the double rectangular steel wire rope lower guide 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 Installed at the center of the bracket 13, the two sides of the bracket 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 on one side in turn, area V5, area II2, area III3 and area VIII8 are arranged on the other side in turn, and there are two sets of lifting drive mechanisms 10, which are composed of motors and reducer, the lifting drive mechanism 10 is installed on the trolley frame 9, the trolley running mechanism 12 is installed at both ends of the trolley fra...

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 IV 4.4-1, and the steel wire rope I6.1 is divided into 2, the steel wire rope 6.1-1 in front of the balance beam IV 4.4-1, the steel wire rope 6.1-2 behind the balance beam IV 4.4-1, the steel wire rope 6.1-1 and the steel wire rope 6.1-2 are connected to the balance beam I4.1-1 end; the steel wire rope II6.2 is divided into two at the balance beam I4.1-1, the wire rope 6.2-1 in front of the balance beam I4.1-1, the steel wire rope 6.2-2 behind the balance beam I4.1-1, and the steel wire rope 6.2-1 and steel wire rope 6.2-2 are connected to both ends of the balance beam I4.1-1. Such as Figure 9 shown.

Embodiment 3

[0035] It is basically the same as embodiment 2, except that drum group I 1.1 or drum group II 1.2 are double-shaft double drums, four steel wire ropes, steel wire rope 6.1-1, steel wire rope 6.1-2, steel wire rope 6.2-1 and steel wire rope 6.2-2 They are respectively wound on their respective drums, the steel wire rope 6.1-1 is wound on the drum group I-1 1.1-1, the steel wire rope 6.1-2 is wound on the drum group I-2 1.1-2, and the steel wire rope 6.2-1 is wound on the drum group I-1 1.1-1. On the drum group II-11.2-1, the wire rope 6.2-2 is wound on the drum group II-2 1.2-2. Such as Figure 10 as shown,

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Abstract

Lifting trolley for nuclear power plant with double rectangular steel wire rope lower guide rope winding system, including trolley frame, hoisting drive mechanism, wire rope winding system, trolley running mechanism and spreader, wire rope winding system includes drum, upper pulley block, lower pulley block, and transition pulley block And the steel wire rope, one end of the steel wire rope is wound on the drum set, the other end is wound around the lower pulley block, the upper pulley block and the transition pulley block, and finally wound on the drum set to form a rectangular winding. Beneficial effects: suitable for crane trolleys of large lifting capacity nuclear power plants; reduce the drive capacity required by a single motor, reducer, etc., reduce equipment manufacturing and maintenance costs; have a wide range of applications, can be used on ring cranes and spent fuel container cranes in nuclear power plants, and can also be used On other cranes that need to achieve single fault protection for lifting dangerous loads.

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 Patents(China)
IPC IPC(8): B66D1/26B66D1/20
Inventor 徐宏伟苏冬
Owner DALIAN HUARUI HEAVY IND GRP CO LTD
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