CN114348891B - Hoisting equipment for disassembling and assembling bridge crane of underground factory building and bridge crane disassembling and assembling construction method - Google Patents
Hoisting equipment for disassembling and assembling bridge crane of underground factory building and bridge crane disassembling and assembling construction method Download PDFInfo
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- CN114348891B CN114348891B CN202210017877.6A CN202210017877A CN114348891B CN 114348891 B CN114348891 B CN 114348891B CN 202210017877 A CN202210017877 A CN 202210017877A CN 114348891 B CN114348891 B CN 114348891B
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- 238000010276 construction Methods 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
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- 238000000034 method Methods 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
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Abstract
The invention relates to lifting equipment for disassembling and assembling an underground factory building bridge crane and a bridge crane disassembling and assembling construction method. The method is suitable for the field of bridge machine reconstruction of underground plants. The technical scheme adopted by the invention is as follows: a lifting device for dismouting of underground powerhouse bridge machine, its characterized in that: a through hole is formed in the central area of the top plate of the underground plant, a fixed pulley is arranged above the through hole, the fixed pulley is fixedly arranged on a supporting frame, and the supporting frame is fixedly arranged on a plant structure beam at the top of the underground plant; the fixed pulley is wound with a steel wire rope I, one end of the steel wire rope I penetrates through a through hole in a roof of the underground workshop and then is connected with a lifting connecting piece positioned in the underground workshop, the other end of the steel wire rope I is connected with lifting driving equipment, and the lifting driving equipment is fixed on a workshop structural beam at the top of the underground workshop.
Description
Technical Field
The invention relates to lifting equipment for disassembling and assembling an underground factory building bridge crane and a bridge crane disassembling and assembling construction method. The method is suitable for the field of bridge machine reconstruction of underground plants.
Background
The bridge machine replacement of the underground factory building has the following difficulties: 1. the automobile crane cannot directly transport the parts of the large-scale equipment into a factory building; 2. the old bridge crane is dismantled and the new bridge crane is hoisted, so that the condition that no hoisting equipment is available exists; 3. the maximum weight of the large part is 30 tons, and how to design a lifting scheme has difficulty. Hydropower stations of general underground plants are characterized by compact space arrangement, the top of the plant is a walking channel, and the truck cranes cannot directly travel into the plant, so that the large-scale equipment in the plant is very difficult to hoist.
Disclosure of Invention
The invention aims to solve the technical problems that: aiming at the problems, the lifting equipment for disassembling and assembling the bridge crane of the underground factory building and the bridge crane disassembling and assembling construction method are provided.
The technical scheme adopted by the invention is as follows: a lifting device for dismouting of underground powerhouse bridge machine, its characterized in that: a through hole is formed in the central area of the top plate of the underground plant, a fixed pulley is arranged above the through hole, the fixed pulley is fixedly arranged on a supporting frame, and the supporting frame is fixedly arranged on a plant structure beam at the top of the underground plant;
The fixed pulley is wound with a steel wire rope I, one end of the steel wire rope I penetrates through a through hole in a roof of the underground workshop and then is connected with a lifting connecting piece positioned in the underground workshop, the other end of the steel wire rope I is connected with lifting driving equipment, and the lifting driving equipment is fixed on a workshop structural beam at the top of the underground workshop.
The hoisting driving device is provided with a winch, a fixed pulley block and a movable pulley block, one end of a steel wire rope II on the winch is connected to a winding drum of the winch, the other end of the steel wire rope II is wound on the movable pulley block and the fixed pulley block back and forth, the movable pulley block is led to the winch and fixed on a base of the winch, and a bracket of the movable pulley block is connected with the steel wire rope I.
And a steel wire rope angle adjusting device is arranged corresponding to the steel wire rope II between the winding drum of the winding machine and the movable pulley block.
The steel wire rope angle adjusting device is provided with a movable pulley and a chain block, wherein the movable pulley is wound with the steel wire rope II, one end of the chain block is connected with a bracket of the movable pulley, and the other end of the chain block is connected with a fixing mechanism.
The support frame has a box girder and a box Liang Zhitui which is connected with two ends of the box girder and is matched with the box girder to form a door-shaped structure, and the side of the support frame, which is close to the lifting driving equipment, is connected with an anti-overturning support.
A method for dismounting and constructing an underground factory bridge crane is characterized in that:
Hoisting components of the new bridge crane to the bottom surface of a hoisting well beside the underground factory building by utilizing the original gate hoist of the hydropower station;
The components of the new bridge crane are transported into the underground factory building from the hoisting well through the factory building gate between the hoisting well and the underground factory building by utilizing the translation trolley;
hoisting the new bridge crane components in the underground factory building to a set height by using the hoisting equipment, and assisting in completing the installation of the new bridge crane in the underground factory building;
removing an original bridge crane in the underground factory building, and hoisting components of the original bridge crane to the bottom surface of the underground factory building by using the hoisting equipment;
the components of the original bridge crane are transported into the hoisting well from the underground factory building through the factory building gate by utilizing the translation trolley;
And hoisting out the original bridge crane component in the hoisting well by using a gate hoist.
Utilize translation dolly to transport the part of new bridge crane to underground factory building in passing factory building gate between hoist well and the underground factory building from the hoist well, include:
The door type hoist and the original bridge crane are utilized to carry out double lifting, and the girder of the new bridge crane is transferred into the underground factory building by matching with the translation trolley.
Utilize translation dolly to pass factory building gate with former bridge machine's part from underground factory building and transport to hoist and mount in the well, include:
And (3) carrying out double lifting by using the gate hoist and the new bridge crane, and transferring the girder of the original bridge crane into a lifting well by matching with the translation trolley.
The beneficial effects of the invention are as follows: according to the invention, the hoisting equipment is arranged on the top plate of the underground factory building, the steel wire rope I on the hoisting equipment penetrates through the through hole on the top plate of the underground factory building and then enters the underground factory building, so that the bridge crane component can be hoisted in the process of disassembling and reforming the bridge crane of the underground factory building, and the structure is simple, the construction is convenient, and the cost is lower.
In the invention, main components (a supporting frame, lifting driving equipment and the like) of the lifting equipment are fixed on a factory building structural beam at the top of an underground factory building, so that the safety of the operation process is ensured.
The invention realizes the installation of the new bridge crane and the removal of the original bridge crane by the cooperation of the gate hoist, the translation trolley and the lifting equipment. The invention firstly moves the original bridge crane to one end, completes the installation of the new bridge crane through the hoisting equipment, then completes the dismantling work of the original bridge crane through the hoisting equipment, and the new bridge crane girder can be matched with the original bridge crane and the gate hoist to carry out double lifting in the transportation process from the hoisting well to the underground factory building to assist the girder transportation; the girder of the original bridge crane can be matched with the new bridge crane and the gate hoist to carry out double lifting in the transportation process from the underground factory building to the lifting well, thereby assisting the transportation of the girder. The invention only needs to provide a through hole for the steel wire rope to pass through on the top plate of the underground factory building, is convenient for construction, and has basically negligible influence on the structure of the underground factory building.
Drawings
Fig. 1 is a schematic diagram of a bridge crane dismounting construction in an embodiment.
Fig. 2 and 3 are schematic diagrams of the arrangement of the hoisting apparatus in the embodiment.
Fig. 4 is a schematic structural view of a lifting driving device in an embodiment.
Fig. 5 and 6 are schematic structural views of a support frame according to an embodiment.
1. An underground plant; 1-1, through holes; 1-2, a factory building gate; 2. hoisting the well; 3. an original bridge machine; 4. a translation trolley; 5. new bridge girder; 6. a fixed pulley; 7. a support frame; 7-1, a box girder; 7-2, a box Liang Zhitui; 7-3, an anti-overturning bracket; 8. a steel wire rope I; 9. hoisting driving equipment; 9-1, winding drum; 9-2, a base; 9-3, fixed pulley blocks; 9-4 movable pulley blocks; 9-5, a steel wire rope II; 10. an adjusting pulley; 11. chain block; 12. a fixing mechanism.
Detailed Description
The embodiment provides a construction method for disassembling and assembling an underground factory building bridge machine, which specifically comprises the following steps:
s1, hoisting components of a new bridge crane to the bottom surface of a hoisting well beside an underground factory building by utilizing an original gate hoist of the hydropower station.
Considering that the automobile crane can not be used for hoisting in place, the existing gate hoist of the hydropower station is connected with the lifting lug of the girder of the new bridge crane, the hoisting space of the hoisting well is considered, one end of the girder of the new bridge crane is inclined to the workshop gate between the underground workshop and the hoisting well in the horizontal direction and the vertical direction, and then is gradually and slowly hoisted to the lower space (the workshop gate).
When the equal girder falls into the ground, one end of the girder of the new bridge crane passes through the factory building gate under the action of the gate hoist, and the bridge crane of the original factory building can be matched with the gate hoist to carry out double lifting operation.
S2, conveying components of the new bridge crane into the underground factory building from the hoisting well through a factory building gate between the hoisting well and the underground factory building by utilizing the translation trolley through a track, wherein the double lifting operation of the original bridge crane matched with the gate hoist is carried out for assisting in the loading and conveying process of the translation trolley.
S3, stopping the original bridge crane at one end, and hoisting the new bridge crane component in the underground plant to a set height by using hoisting equipment for the underground plant to assist in completing the installation of the new bridge crane in the underground plant.
In the embodiment, the hoisting equipment for disassembling and assembling the bridge crane of the underground plant is arranged on the top plate of the underground plant, a through hole is formed in the central area of the top plate of the underground plant, a fixed pulley is arranged above the through hole, the fixed pulley is arranged and fixed on a support frame, and the support frame is fixed on a plant structure beam at the top of the underground plant; the fixed pulley is wound with a steel wire rope I, one end of the steel wire rope I penetrates through a through hole in a roof of the underground workshop and then is connected with a lifting connecting piece (a hook and the like) positioned in the underground workshop, the other end of the steel wire rope I is connected with lifting driving equipment, and the lifting driving equipment is fixed on a workshop structural beam at the top of the underground workshop.
The hoisting driving device in the example comprises a winch, a fixed pulley block, a movable pulley block and the like, wherein one end of a steel wire rope II on the winch is connected to a winding drum of the winch, the other end of the steel wire rope II is wound on the movable pulley block and the fixed pulley block back and forth, and the movable pulley block is led to the winch and fixed on a base of the winch, and a bracket of the movable pulley block is connected with the steel wire rope I.
Considering that the lifting weight is 30 tons, in order to reduce the power of a driving system, the lifting device is composed of a fixed pulley, a movable pulley block, a fixed pulley block, a winch and the like, and 30 tons are saved by a pulley system to 5 tons.
In order to prevent the wire rope II from interfering with the edge of the winding drum when being wound and unwound, the embodiment is provided with a wire rope angle adjusting device corresponding to the wire rope II between the winding drum of the winch and the movable pulley block. The steel wire rope angle adjusting device is provided with an adjusting pulley and a chain block, wherein the adjusting pulley is wound with the steel wire rope II, one end of the chain block is connected with a bracket of the adjusting pulley, and the other end of the chain block is connected with a fixing mechanism fixed on the top plate.
The support frame in this embodiment has a box girder and connects in box girder both ends and cooperates and form box Liang Zhitui of a font structure, and the side joint of this support frame by lifting by crane actuating device prevents the support that overturns. The support frame needs to bear 2 force actions of 30 tons at the fixed pulley, strength and stress meet design specification requirements, the support frame is composed of a box beam, box beam supporting legs, anti-overturning supports and the like, the box beam is horizontally arranged, the box Liang Zhitui is connected to two ends of the box beam and matched with the two ends of the box beam to form a door-shaped structure, and the support frame is connected with the anti-overturning supports in a side joint manner by the lifting driving equipment.
S4, dismantling an original bridge crane in the underground factory building, and hoisting components of the original bridge crane to the bottom surface of the underground factory building by using hoisting equipment for disassembling and assembling the bridge crane of the underground factory building.
S5, conveying the parts of the original bridge crane from the underground factory building to the hoisting well through the factory building gate by utilizing the translation trolley. When the translation trolley loads and transports the girder of the original bridge crane, the door type hoist and the new bridge crane can be utilized to carry out double lifting, and the girder of the original bridge crane is transferred into a lifting well by matching with the translation trolley.
S6, hoisting out the original bridge crane component on the bottom surface of the hoisting well by using the gate hoist, and completing the disassembly, assembly and transformation operation of the bridge crane of the underground factory building.
Claims (5)
1. A method for dismounting and constructing an underground factory bridge crane is characterized in that:
Hoisting components of the new bridge crane to the bottom surface of a hoisting well beside the underground factory building by utilizing the original gate hoist of the hydropower station;
the components of the new bridge crane are transported into the underground factory building from the hoisting well through the factory building gate between the hoisting well and the underground factory building by utilizing the translation trolley; the door type hoist and the original bridge crane are utilized to carry out double lifting, and the girder of the new bridge crane is transferred into an underground factory building by matching with the translation trolley;
Hoisting the new bridge crane components in the underground factory building to a set height by using hoisting equipment for disassembling and assembling the bridge crane of the underground factory building, and assisting in completing the installation of the new bridge crane in the underground factory building;
removing an original bridge crane in the underground factory building, and hoisting components of the original bridge crane to the bottom surface of the underground factory building by using the hoisting equipment;
The components of the original bridge crane are transported into the hoisting well from the underground factory building through the factory building gate by utilizing the translation trolley; double lifting is carried out by utilizing a gate hoist and a new bridge crane, and the girder of the original bridge crane is transferred into a lifting well by matching with a translation trolley;
hoisting out the original bridge crane component in the hoisting well by using a gate hoist;
The hoisting equipment for disassembling and assembling the bridge crane of the underground plant comprises a through hole formed in the central area of the top plate of the underground plant, a fixed pulley is arranged above the through hole, the fixed pulley is fixedly arranged on a support frame, and the support frame is fixedly arranged on a plant structure beam at the top of the underground plant;
The fixed pulley is wound with a steel wire rope I, one end of the steel wire rope I penetrates through a through hole in a roof of the underground workshop and then is connected with a lifting connecting piece positioned in the underground workshop, the other end of the steel wire rope I is connected with lifting driving equipment, and the lifting driving equipment is fixed on a workshop structural beam at the top of the underground workshop.
2. The method for dismounting and constructing the bridge crane of the underground plant according to claim 1, wherein the method comprises the following steps: the hoisting driving device is provided with a winch, a fixed pulley block and a movable pulley block, one end of a steel wire rope II on the winch is connected to a winding drum of the winch, the other end of the steel wire rope II is wound on the movable pulley block and the fixed pulley block back and forth, the movable pulley block is led to the winch and fixed on a base of the winch, and a bracket of the movable pulley block is connected with the steel wire rope I.
3. The method for dismounting and constructing the bridge crane of the underground plant according to claim 2, wherein the method comprises the following steps: and a steel wire rope angle adjusting device is arranged corresponding to the steel wire rope II between the winding drum of the winding machine and the movable pulley block.
4. The method for dismounting and constructing the bridge crane of the underground plant according to claim 3, wherein the method comprises the following steps: the steel wire rope angle adjusting device is provided with an adjusting pulley and a chain block, wherein the adjusting pulley is wound with the steel wire rope II, one end of the chain block is connected with a bracket of the adjusting pulley, and the other end of the chain block is connected with a fixing mechanism.
5. The method for dismounting and constructing the bridge crane of the underground plant according to claim 1, wherein the method comprises the following steps: the support frame has a box girder and a box Liang Zhitui which is connected with two ends of the box girder and is matched with the box girder to form a door-shaped structure, and the side of the support frame, which is close to the lifting driving equipment, is connected with an anti-overturning support.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210017877.6A CN114348891B (en) | 2022-01-07 | 2022-01-07 | Hoisting equipment for disassembling and assembling bridge crane of underground factory building and bridge crane disassembling and assembling construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210017877.6A CN114348891B (en) | 2022-01-07 | 2022-01-07 | Hoisting equipment for disassembling and assembling bridge crane of underground factory building and bridge crane disassembling and assembling construction method |
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| CN114348891A CN114348891A (en) | 2022-04-15 |
| CN114348891B true CN114348891B (en) | 2024-05-24 |
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| CN110697581A (en) * | 2019-11-26 | 2020-01-17 | 中国电建集团华东勘测设计研究院有限公司 | Bridge crane dismounting and mounting construction method in factory building bridge crane updating project |
| CN111498672A (en) * | 2020-04-08 | 2020-08-07 | 中国电建集团华东勘测设计研究院有限公司 | Hoisting system and construction method for large bridge crane heavy workpiece |
-
2022
- 2022-01-07 CN CN202210017877.6A patent/CN114348891B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201325826Y (en) * | 2008-11-17 | 2009-10-14 | 中国水利水电第七工程局有限公司机电安装分局 | Rock anchor beam hoisting device for underground power house |
| CN101537973A (en) * | 2009-04-21 | 2009-09-23 | 武汉冶建安装工程有限责任公司 | Method for continuously hoisting rolling mill housings by hydraulic pushing and lifting |
| CN104060830A (en) * | 2014-06-13 | 2014-09-24 | 长江勘测规划设计研究有限责任公司 | Method for lifting and transporting large parts of underground nuclear power station |
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| CN111498672A (en) * | 2020-04-08 | 2020-08-07 | 中国电建集团华东勘测设计研究院有限公司 | Hoisting system and construction method for large bridge crane heavy workpiece |
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