CN114348891A - Hoisting equipment for disassembling and assembling bridge crane of underground workshop and bridge crane disassembling and assembling construction method - Google Patents
Hoisting equipment for disassembling and assembling bridge crane of underground workshop and bridge crane disassembling and assembling construction method Download PDFInfo
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- CN114348891A CN114348891A CN202210017877.6A CN202210017877A CN114348891A CN 114348891 A CN114348891 A CN 114348891A CN 202210017877 A CN202210017877 A CN 202210017877A CN 114348891 A CN114348891 A CN 114348891A
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Abstract
The invention relates to a hoisting device for disassembling and assembling a bridge crane of an underground workshop and a construction method for disassembling and assembling the bridge crane. The method is suitable for the field of transformation of bridge cranes of underground plants. The technical scheme adopted by the invention is as follows: the utility model provides a lift by crane equipment that is used for dismouting of secret factory building bridge crane which characterized in that: a through hole is formed in the central area of the top plate of the underground workshop, a fixed pulley is arranged above the through hole, the fixed pulley is installed and fixed on a support frame, and the support frame is fixed on a workshop structural beam at the top of the underground workshop; a steel wire rope I is wound on the fixed pulley, one end of the steel wire rope I penetrates through a through hole in a top plate of the underground workshop and then is connected with a hoisting connecting piece located inside the underground workshop, the other end of the steel wire rope I is connected with hoisting driving equipment, and the hoisting driving equipment is fixed on a workshop structural beam at the top of the underground workshop.
Description
Technical Field
The invention relates to a hoisting device for disassembling and assembling a bridge crane of an underground workshop and a construction method for disassembling and assembling the bridge crane. The method is suitable for the field of transformation of bridge cranes of underground plants.
Background
The replacement of the bridge crane of the underground factory building has the following difficulties: 1. the truck crane can not directly transport the parts of the large-scale equipment into the plant; 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-scale part is 30 tons, and the difficulty exists in designing a hoisting scheme. The hydropower station of a general underground powerhouse is characterized in that the space arrangement is compact, the top of the powerhouse is a walking channel, and an automobile crane cannot directly drive into the powerhouse, so that large-scale equipment in the powerhouse is very difficult to hoist.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems, the hoisting equipment for disassembling and assembling the bridge crane of the underground workshop and the construction method for disassembling and assembling the bridge crane are provided.
The technical scheme adopted by the invention is as follows: the utility model provides a lift by crane equipment that is used for dismouting of secret factory building bridge crane which characterized in that: a through hole is formed in the central area of the top plate of the underground workshop, a fixed pulley is arranged above the through hole, the fixed pulley is installed and fixed on a support frame, and the support frame is fixed on a workshop structural beam at the top of the underground workshop;
a steel wire rope I is wound on the fixed pulley, one end of the steel wire rope I penetrates through a through hole in a top plate of the underground workshop and then is connected with a hoisting connecting piece located inside the underground workshop, the other end of the steel wire rope I is connected with hoisting driving equipment, and the hoisting 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 winds the movable pulley block and the fixed pulley block back and forth, then the driven pulley block is led to the winch and fixed on a base of the winch, and a support 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 winch drum 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 support of the movable pulley, and the other end of the chain block is connected with a fixing mechanism.
The support frame is provided with a box beam and box beam supporting legs which are connected to two ends of the box beam and are matched with each other to form a door-shaped structure, and an anti-overturning support is connected to the side, close to the hoisting driving equipment, of the support frame.
A construction method for dismounting an underground factory bridge crane is characterized by comprising the following steps:
hoisting the parts of the new bridge crane to the bottom surface of a hoisting well beside an underground workshop by using the original gantry hoist of the hydropower station;
transporting the parts of the new bridge crane from the hoisting well to an underground workshop through a workshop gate between the hoisting well and the underground workshop by using the translation trolley;
hoisting the new bridge crane component in the underground plant to a set height by using the hoisting equipment to assist in completing the installation of the new bridge crane in the underground plant;
dismantling an original bridge crane in the underground workshop, and hoisting the components of the original bridge crane to the bottom surface of the underground workshop by using the hoisting equipment;
transporting the components of the original bridge crane to a hoisting well from an underground workshop through a gate of the workshop by using a translation trolley;
and hoisting the original bridge machine component in the hoisting well out by using a gantry hoist.
Utilize translation dolly to pass the factory building gate between hoist and mount well and the underground factory building with the part of new bridge crane and transport to the underground factory building in from the hoist and mount well, include:
the gantry hoist and the original bridge crane are used for double lifting, and the girder of the new bridge crane is transferred to an underground workshop by matching with the translation trolley.
Utilize the translation dolly to pass the part transportation of factory building gate to hoist and mount well with former bridge crane from secret factory building, include:
the gantry hoist and the new bridge crane are used for double lifting, and the translation trolley is matched to transfer the girder of the original bridge crane into the hoisting well.
The invention has the beneficial effects that: according to the invention, the hoisting equipment is arranged on the top plate of the underground plant, the steel wire rope I on the hoisting equipment passes through the through hole on the top plate of the underground plant and then enters the underground plant, and bridge crane components can be hoisted in the process of dismounting and transforming the bridge crane of the underground plant.
In the invention, the main parts (the support frame, the lifting driving equipment and the like) of the lifting equipment are all fixed on the plant structural beam at the top of the underground plant, so that the safety of the operation process is ensured.
The invention realizes the installation of a new bridge crane and the removal of an original bridge crane by the matching of the gantry hoist, the translation trolley and the hoisting equipment. The method comprises the steps that an original bridge crane is moved to one end, a new bridge crane is installed through a hoisting device, then the original bridge crane is dismantled through the hoisting device, and a girder of the new bridge crane can be matched with the original bridge crane and a gantry hoist to carry out double lifting and hoisting in the transportation process from a hoisting well to an underground workshop to assist in the transportation of the girder; the new bridge crane and the gantry hoist can be matched to carry out double lifting and hoisting in the transportation process of the girder of the original bridge crane from an underground workshop to a hoisting well, so that the transportation of the girder is assisted. According to the invention, only one through hole through which the steel wire rope can pass is formed in the top plate of the underground workshop, so that the construction is convenient, and the influence on the structure of the underground workshop can be basically ignored.
Drawings
FIG. 1 is a schematic view of the construction of assembling and disassembling the bridge crane in the embodiment.
Fig. 2 and 3 are schematic layout diagrams of the hoisting equipment in the embodiment.
Fig. 4 is a schematic structural diagram of the hoisting driving device in the embodiment.
Fig. 5 and 6 are schematic structural views of the support frame in the embodiment.
1. An underground plant; 1-1, through holes; 1-2, a plant gate; 2. hoisting the well; 3. an original bridge machine; 4. translating the trolley; 5. a girder of the new bridge crane; 6. a fixed pulley; 7. a support frame; 7-1, box beam; 7-2, box beam supporting legs; 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, a fixed pulley block; 9-4 movable pulley blocks; 9-5, a steel wire rope II; 10. adjusting the pulley; 11. a chain block; 12. and a fixing mechanism.
Detailed Description
The embodiment provides a construction method for dismounting an underground factory bridge crane, which specifically comprises the following steps:
and S1, hoisting the parts of the new bridge crane to the bottom surface of a hoisting well beside the underground powerhouse by using the original gantry hoist of the hydropower station.
Considering that the hydraulic power station can not be hoisted in place by using an automobile crane, the existing gantry hoist of the hydraulic power station is connected with the lifting lug of the girder of the new bridge crane, considering the hoisting space of the hoisting well, one end of the girder of the new bridge crane inclines towards the plant gate between the underground plant and the hoisting well in the horizontal direction and the vertical direction, and then the girder of the new bridge crane is gradually and slowly hoisted to the lower space (the plant gate).
When the girder falls into the ground, one end of the girder of the new bridge crane passes through the gate of the plant under the action of the gantry hoist, and the original plant bridge crane can be matched with the gantry hoist to carry out double lifting operation.
And S2, conveying the parts of the new bridge crane into the underground plant through the plant gate between the hoisting well and the underground plant from the hoisting well by using the translation trolley through the rail, and assisting double lifting operation by matching the original plant bridge crane with the gantry hoist in the loading and conveying processes of the translation trolley.
And S3, stopping the original bridge crane at one end, hoisting the new bridge crane component in the underground workshop to a set height by using the hoisting equipment for the underground workshop, and assisting in finishing the installation of the new bridge crane in the underground workshop.
In the embodiment, the hoisting equipment for disassembling and assembling the bridge crane of the underground workshop is arranged on a top plate of the underground workshop, a through hole is formed in the central area of the top plate of the underground workshop, a fixed pulley is arranged above the through hole, the fixed pulley is fixedly arranged on a support frame, and the support frame is fixed on a workshop structural beam at the top of the underground workshop; a steel wire rope I is wound on the fixed pulley, one end of the steel wire rope I penetrates through a through hole in a top plate of the underground plant and then is connected with a hoisting connecting piece (a hook and the like) positioned inside the underground plant, the other end of the steel wire rope I is connected with a hoisting driving device, and the hoisting driving device is fixed on a plant structural beam at the top of the underground plant.
The hoisting driving device in the embodiment 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 winds the movable pulley block and the fixed pulley block back and forth, then the driven pulley block is led to the winch and fixed on a base of the winch, and a support of the movable pulley block is connected with the steel wire rope I.
Considering that the hoisting weight is 30 tons, in order to reduce the power of a driving system, the embodiment adopts the components of a fixed pulley, a movable pulley block, a fixed pulley block and a winch, and the like, and the 30 tons finally save the labor to 5t through a pulley system.
In order to prevent the interference between the steel wire rope II and the edge of the winding drum when the steel wire rope II is wound and unwound, the steel wire rope angle adjusting device is arranged corresponding to the steel 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 support 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 has box girder and connects in box girder both ends and the box girder landing leg that forms the structure of door font in this embodiment, and this support frame leans on the drive equipment side of lifting by crane has the support of preventing toppling. The support frame needs to bear the action of 2 30 tons of forces at the fixed pulley, the strength and the stress meet the design specification requirements, the support frame comprises a box beam, box beam supporting legs, an anti-overturning support and the like, the box beam is horizontally arranged, the box beam supporting legs are connected to two ends of the box beam and matched to form a door-shaped structure, and the support frame is close to the hoisting driving device and is connected with the anti-overturning support in a side mode.
S4, dismantling the original bridge crane in the underground workshop, and hoisting the components of the original bridge crane to the bottom surface of the underground workshop by using the hoisting equipment for dismounting the bridge crane in the underground workshop.
And S5, transporting the components of the original bridge crane from the underground workshop to a hoisting well through a gate of the workshop by using the translation trolley. The translation trolley can utilize the gantry hoist and the new bridge crane to carry out double lifting when loading and transporting the girder of the original bridge crane, and the translation trolley is matched to transfer the girder of the original bridge crane into a hoisting well.
And S6, lifting out the original bridge crane component on the bottom surface of the hoisting well by using a gantry hoist to complete the dismounting and transformation operation of the bridge crane of the underground workshop.
Claims (8)
1. The utility model provides a lift by crane equipment that is used for dismouting of secret factory building bridge crane which characterized in that: a through hole is formed in the central area of the top plate of the underground workshop, a fixed pulley is arranged above the through hole, the fixed pulley is installed and fixed on a support frame, and the support frame is fixed on a workshop structural beam at the top of the underground workshop;
a steel wire rope I is wound on the fixed pulley, one end of the steel wire rope I penetrates through a through hole in a top plate of the underground workshop and then is connected with a hoisting connecting piece located inside the underground workshop, the other end of the steel wire rope I is connected with hoisting driving equipment, and the hoisting driving equipment is fixed on a workshop structural beam at the top of the underground workshop.
2. The hoisting equipment for disassembling and assembling the bridge crane of the underground powerhouse according to the claim 1, which is characterized in that: 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 winds the movable pulley block and the fixed pulley block back and forth, then the driven pulley block is led to the winch and fixed on a base of the winch, and a support of the movable pulley block is connected with the steel wire rope I.
3. The hoisting equipment for disassembling and assembling the bridge crane of the underground powerhouse according to the claim 2, characterized in that: and a steel wire rope angle adjusting device is arranged corresponding to the steel wire rope II between the winch drum and the movable pulley block.
4. The hoisting equipment for disassembling and assembling the bridge crane of the underground powerhouse according to the claim 3, characterized in that: 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 support of the adjusting pulley, and the other end of the chain block is connected with a fixing mechanism.
5. The hoisting equipment for disassembling and assembling the bridge crane of the underground powerhouse according to the claim 1, which is characterized in that: the support frame is provided with a box beam and box beam supporting legs which are connected to two ends of the box beam and are matched with each other to form a door-shaped structure, and an anti-overturning support is connected to the side, close to the hoisting driving equipment, of the support frame.
6. A construction method for dismounting an underground factory bridge crane is characterized by comprising the following steps:
hoisting the parts of the new bridge crane to the bottom surface of a hoisting well beside an underground workshop by using the original gantry hoist of the hydropower station;
transporting the parts of the new bridge crane from the hoisting well to an underground workshop through a workshop gate between the hoisting well and the underground workshop by using the translation trolley;
hoisting a new bridge crane component in the underground plant to a set height by using the hoisting equipment according to any one of claims 1 to 5 to assist in completing the installation of the new bridge crane in the underground plant;
dismantling an original bridge crane in the underground workshop, and hoisting the components of the original bridge crane to the bottom surface of the underground workshop by using the hoisting equipment;
transporting the components of the original bridge crane to a hoisting well from an underground workshop through a gate of the workshop by using a translation trolley;
and hoisting the original bridge machine component in the hoisting well out by using a gantry hoist.
7. The underground powerhouse bridge crane dismounting construction method according to claim 6, wherein the step of transporting the components of the new bridge crane from the hoist shaft to the underground powerhouse through the powerhouse gate between the hoist shaft and the underground powerhouse by using the translation trolley comprises the following steps:
the gantry hoist and the original bridge crane are used for double lifting, and the girder of the new bridge crane is transferred to an underground workshop by matching with the translation trolley.
8. The underground powerhouse bridge crane dismounting construction method according to claim 6, wherein the step of transporting the components of the original bridge crane from the underground powerhouse to the hoisting well through the powerhouse gate by using the translation trolley comprises the following steps:
the gantry hoist and the new bridge crane are used for double lifting, and the translation trolley is matched to transfer the girder of the original bridge crane into the hoisting well.
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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 true CN114348891A (en) | 2022-04-15 |
| CN114348891B CN114348891B (en) | 2024-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115340010A (en) * | 2022-09-13 | 2022-11-15 | 长江勘测规划设计研究有限责任公司 | A method and system for hoisting bridge cranes in underground workshops |
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| CN115340010A (en) * | 2022-09-13 | 2022-11-15 | 长江勘测规划设计研究有限责任公司 | A method and system for hoisting bridge cranes in underground workshops |
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