CN113860137A - Deformation-preventing sliding hoisting method and device for transformer substation steel framework - Google Patents
Deformation-preventing sliding hoisting method and device for transformer substation steel framework Download PDFInfo
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- CN113860137A CN113860137A CN202110967371.7A CN202110967371A CN113860137A CN 113860137 A CN113860137 A CN 113860137A CN 202110967371 A CN202110967371 A CN 202110967371A CN 113860137 A CN113860137 A CN 113860137A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 129
- 239000010959 steel Substances 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000969 carrier Substances 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- 239000012209 synthetic fiber Substances 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/122—Sling or load protectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
Abstract
The invention discloses a deformation-preventing sliding hoisting method and device for a transformer substation steel framework, belongs to the field of transformer substation steel framework hoisting, and discloses a deformation-preventing sliding hoisting method for a transformer substation steel framework, which comprises the following steps: hoisting a first pulley part at the working end of the crane; at least two second pulley parts are hoisted on two sides of the first pulley part through the first pulley part; respectively hoisting the middle parts of the plurality of deformation bearing bodies on the second pulley parts, wherein the deformation bearing bodies are connected with the second pulley parts in a sliding manner; binding the end parts of the deformation supporting bodies on two sides of a steel framework, wherein the length of the deformation supporting bodies is larger than the distance between the connection points of the deformation supporting bodies on the two sides of the steel framework; and (5) hoisting the steel framework by using a crane. The lifting device has the advantages that the connecting points with the steel framework are increased, the gravity borne by the single points is dispersed, the local deformation caused by uneven weight distribution at the two ends of the steel framework can be prevented, and the lifting of the steel framework is more stable.
Description
Technical Field
The invention belongs to the field of hoisting of transformer substation steel frameworks, and particularly relates to a deformation-preventing sliding hoisting method and device for a transformer substation steel framework.
Background
At present, a single-point hoisting method is generally adopted in hoisting construction of a steel framework of a transformer substation, concrete is injected into a steel pipe 2.4m from the bottom of the steel framework in advance, the weight of the bottom is obviously increased, and the steel framework is easy to bend and deform in the process of single-point hoisting.
Disclosure of Invention
The invention aims to provide a deformation-preventing sliding hoisting method and device for a transformer substation steel framework, so that the transformer substation steel framework is not easy to deform in hoisting construction.
The invention is realized by the following technical scheme:
the deformation-preventing sliding hoisting method for the transformer substation steel framework comprises the following steps:
hoisting a first pulley part at the working end of the crane;
at least two second pulley parts are hoisted on two sides of the first pulley part through the first pulley part;
respectively hoisting the middle parts of the plurality of deformation bearing bodies on the second pulley parts, wherein the deformation bearing bodies are connected with the second pulley parts in a sliding manner;
binding the end parts of the deformation supporting bodies on two sides of a steel framework, wherein the length of the deformation supporting bodies is larger than the distance between the connection points of the deformation supporting bodies on the two sides of the steel framework;
and (5) hoisting the steel framework by using a crane.
The two connection points of the deformation supporting bodies and the steel framework are at least three.
The deformation supporting body is a rope; or
The deformation supporting body is a chain, and the second pulley part is provided with a gear meshed with the chain.
The first pulley portion and the second pulley portion are fixed pulleys.
The second pulley part comprises at least two fixed pulleys which are coaxially connected;
the deformation supporting body at least comprises two ropes, each rope is connected with the fixed pulley in a matching mode, and the connection point of the end of each rope and the steel framework is different.
The end part of each rope is connected to one side of the steel framework; or
The end of each rope is connected to both sides of the steel framework.
The second pulley portion with the self-balancing structure is constituteed to the supporting body of deformation, self-balancing structure includes first bearing body, the first rope body, is used for restricting first rope body radial motion's locating part and slider, the slider with the locating part sets up the first rope body with between the first bearing body, the body of locating part with this body coupling of first bearing, the working end of locating part with first rope body coupling, the first rope body pass through the slider with this body sliding connection of first bearing.
The limiting part comprises a first roller with a first annular groove at the edge and a second roller with a second annular groove at the edge, one side of the first rope body is located in the first annular groove, and the other side of the first rope body is located in the second annular groove.
Compared with the prior art, the invention has the following beneficial technical effects: the two sides of the steel framework are connected through the deformation supporting bodies, and the second pulley parts bear weight under the combined action of the deformation supporting bodies and the second pulley parts, so that the borne weight is located at the gravity center position of the steel framework. The steel framework hoisting device has the advantages that the connecting points with the steel framework are increased, the gravity borne by the single points is dispersed, the local deformation caused by uneven weight distribution at the two ends of the steel framework can be prevented, and the steel framework hoisting is more stable.
The invention also provides a deformation-preventing sliding hoisting device for the transformer substation steel framework, which is used for the deformation-preventing sliding hoisting method for the transformer substation steel framework, and comprises the following steps:
the self-balancing structure comprises a first bearing body, a first rope body, a limiting part and a sliding part, wherein the limiting part and the sliding part are used for limiting the radial movement of the first rope body; the two ends of the first rope body are provided with the anti-falling pieces.
The limiting part comprises a first roller with a first annular groove at the edge and a second roller with a second annular groove at the edge, one side of the first rope body is located in the first annular groove, and the other side of the first rope body is located in the second annular groove.
Compared with the prior art, the deformation-preventing sliding hoisting device for the transformer substation steel framework has the same beneficial effects as the deformation-preventing sliding hoisting method for the transformer substation steel framework in the technical scheme, and the details are not repeated here.
Drawings
FIG. 1 is a block diagram of the deformation-preventing sliding hoisting method for the steel framework of the transformer substation;
FIG. 2 is a schematic overall structure diagram of the deformation-preventing sliding hoisting device for the steel framework of the transformer substation;
FIG. 3 is another schematic structural diagram of the deformation-preventing sliding hoisting device for the transformer substation steel framework;
fig. 4 is a schematic overall structure diagram of a limiting member in the deformation-preventing sliding hoisting device for the transformer substation steel framework of the present invention.
Reference numerals: 1. a first load bearing body; 2. a second load bearing body; 3. an anti-drop member; 4. a steel framework; 5. a first rope body; 6. a second rope body; 7. a first roller; 8. a first annular groove; 9. a second roller; 10. a second annular groove.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
Referring to fig. 1, a block diagram of a method for hoisting a transformer substation steel framework in an anti-deformation sliding manner according to the present invention is shown, and the method for hoisting the transformer substation steel framework in the anti-deformation sliding manner includes:
101, hoisting a first pulley part at the working end of the crane. In this step, the first pulley portion is directly connected to the working end of the crane, and the first pulley portion may be one or more fixed pulleys. Or
The first pulley part can also be a fixed pulley coaxially provided with a gear, the deformation supporting body is a chain, and a motor is installed on the fixed pulley, the motor does not participate in the lifting process, the motor can operate when the steel framework 4 needs to be turned over, the gear is driven to rotate, then the chain is driven to move, the balance state of the gear, the rack and the suspended steel framework 4 is broken, and the square steel framework 4 is erected.
102, at least two second pulley parts are hoisted on two sides of the first pulley part through the first pulley part. The second pulley portion may be one fixed pulley or may be at least two fixed pulleys connected coaxially. When it is a fixed pulley, as shown in fig. 2. The two ends of the first rope body 5 are provided with two connecting points with the steel framework 4.
If the fixed pulley has two fixed pulleys coaxially connected, two first rope bodies 5 may be connected to one second pulley portion, that is, one second pulley portion may be connected to the steel frame 4 through four connection points of the two first rope bodies 5, as shown in fig. 3. And if four tie points are not on one line, the bearing of two first ropes 5 to one side of steel framework 4 is three-dimensional bearing capacity, and the bearing of two first ropes 5 to steel framework 4 is more stable.
In the above example, the number of the second pulley portions is two, and as shown in fig. 2, one of the second pulley portions is connected to one side of the steel frame 4 through the deformable supporting body, and the other of the second pulley portions is connected to the other side of the steel frame 4 through the deformable supporting body. The two second pulley portions can uniformly bear the gravity of both sides of the steel framework 4. The bearing capacity of the steel framework 4 is equally divided by a plurality of connecting points, and the steel framework 4 is not easy to deform.
103, respectively hoisting the middle parts of the plurality of deformation bearing bodies on the second pulley part, wherein the deformation bearing bodies are in sliding connection with the second pulley part. Because the second pulley portion is connected with the middle part of the deformation supporting body in a sliding mode, the second pulley portion can slide back and forth along the length direction of the deformation supporting body. The position of the second pulley portion is finally determined by the weight of the steel frame 4. The position where the second pulley part finally stops is on the gravity line of the steel framework 4 between the connecting points at the two sides of the deformation supporting body and the steel framework 4.
Since the second pulley portions are provided in two or more numbers, the two second pulley portions are provided on both sides of the steel frame 4, and at least two second pulleys are balanced by the first pulley portion, the bearing point of the first pulley portion is finally located on the gravity center line of the entire steel frame 4.
104, binding the end parts of the deformation carrying bodies on two sides of the steel framework 4, wherein the length of the deformation carrying bodies is larger than the distance between the connection points of the deformation carrying bodies on the two sides of the steel framework 4. The end of each rope is connected to one side of the steel framework 4; or the ends of each rope are connected to both sides of the steel framework 4. The number of the connecting points of the two deformation supporting bodies and the steel framework 4 is at least three. The center line of gravity of the final resultant force of the first pulley part can be positioned in the middle of the steel framework 4 through the plurality of deformation supporting bodies. The bearing force borne by each connection point on the steel framework 4 is relatively uniform.
And 105, hoisting the steel framework 4 by using a crane.
In conclusion, the deformation supporting bodies are connected with the two sides of the steel framework, and the second pulley parts bear weight under the combined action of the deformation supporting bodies and the second pulley parts, so that the borne weight is located at the gravity center position of the steel framework. The steel framework hoisting device has the advantages that the connecting points with the steel framework are increased, the gravity borne by the single points is dispersed, the local deformation caused by uneven weight distribution at the two ends of the steel framework can be prevented, and the steel framework hoisting is more stable.
Further, the present invention also discloses a transformer substation steel framework deformation-preventing sliding hoisting device, please refer to fig. 2 and fig. 4, which show the overall structure schematic diagram of the transformer substation steel framework deformation-preventing sliding hoisting device of the present invention, the transformer substation steel framework deformation-preventing sliding hoisting device includes: the self-balancing structure comprises a first bearing body 1, a first rope body 5, a limiting part and a sliding part, wherein the limiting part and the sliding part are used for limiting the radial movement of the first rope body 5, the sliding part and the limiting part are arranged between the first rope body 5 and the first bearing body 1, the body of the limiting part is connected with the first bearing body 1, the working end of the limiting part is connected with the first rope body 5, and the first rope body 5 is in sliding connection with the first bearing body 1 through the sliding part; the two ends of the first rope body 5 are provided with the anti-falling pieces 3.
In the above embodiments, the self-balancing structure is composed of the first load-bearing body 1, the first rope, the limiting member and the sliding member. Wherein, the first bearing body 1, the sliding part and the first rope body 5 are main actuating mechanisms. As shown in fig. 2, one end of the first rope 5 is connected to one end of the steel framework 4, and the other end of the first rope 5 is connected to the other end of the steel framework 4. The middle part of the first rope body 5 is connected with the first bearing body 1 through a sliding part. When the first load-bearing body 1 is lifted up, the first load-bearing body 1 firstly straightens the first rope 5, as shown in fig. 2. Since the first rope 5 can slide left and right with respect to the first rope 5. When the steel framework 4 applies different pulling forces to the two ends of the first rope body 5, the first rope body 5 can slide left and right relative to the first load-bearing body 1 to balance the pulling forces at the two ends of the first rope body 5. Until the pulling forces at the two ends of the first rope body 5 are the same, the first rope body 5 and the first bearing body 1 are relatively static. Wherein, the sliding part is a fixed pulley or a sliding hook. The first rope body 5 is a steel wire rope or a carbon fiber rope.
The limiting part is used for limiting the first rope body 5, so that the first rope body 5 cannot slide out of the first bearing body 1, and when the first rope body 5 slides, the sliding direction of the first rope body 5 is always the axial direction of the first rope body 5. For example, the limiting member is a through groove on the first load bearing body 1, the first rope body 5 is disposed in the through groove, and the first rope body 5 is disposed along the length direction of the through groove. For another example, the limiting member includes a first roller 7 having a first annular groove 8 along a side thereof and a second roller 9 having a second annular groove 10 along a side thereof, one side of the first rope 5 is located in the first annular groove 8, and the other side of the first rope 5 is located in the second annular groove 10.
When the anti-drop 3 is used for preventing the first rope body 5 from transporting the steel framework 4, the first rope body 5 drops to injure constructors by a crashing object. The drop-off prevention piece 3 is, for example, a drop-off prevention U-shaped ring. For another example, the falling off preventive member 3 is a knot to which the first rope 5 is wound on the steel frame 4.
When the anti-deformation sliding hoisting device for the transformer substation steel framework is used, the two ends of the first rope body 5 are tied up to be connected with the steel framework 4 through the anti-falling pieces 3, and the self-balancing structure is connected with the middle of the first rope body 5. And then hoisting the steel framework 4 by using a crane.
To sum up, first rope through self-balancing structure is connected with the both sides of steel framework, and the combined action of first rope, slider and locating part among the rethread self-balancing structure makes first bearing body when bearing weight, and the weight that bears is located the barycenter position from the steel framework. The local deformation caused by uneven weight distribution at two ends of the steel framework can be prevented, and the hoisting of the steel framework is more stable.
Further, according to another embodiment of the deformation-preventing sliding hoisting device for the transformer substation steel framework, a synthetic fiber sling is arranged between the first rope body 5 and the anti-falling piece 3, the end of the first rope body 5 is connected with one end of the synthetic fiber sling, and the other end of the synthetic fiber sling is connected with the anti-falling piece 3.
In the above embodiment, the steel frame 4 is wound with the synthetic fiber sling, and the galvanized coating of the galvanized member of the steel frame 4 can be protected.
Referring to fig. 2, the invention also discloses a deformation-preventing sliding hoisting system for the transformer substation steel framework 4, which comprises:
the transformer substation steel framework deformation-preventing sliding hoisting devices are arranged on the steel framework;
a second load-bearing body 2;
a plurality of second ropes 6 for transmitting load-bearing weight;
one end of each second rope body 6 is connected with the second bearing body 2, and the other end of each second rope body is connected with one deformation-preventing sliding hoisting device of the transformer substation steel framework 4.
In the above embodiment, since the steel frame 4 is a three-dimensional member, if it is ensured that the steel frame 4 maintains a specific posture when the steel frame 4 is lifted, a plurality of the deformation-preventing sliding hoisting devices for the transformer substation steel frame need to be used simultaneously. The use of the anti-deformation sliding hoisting device for the plurality of transformer substation steel frameworks 4 can ensure that the steel frameworks 4 keep the hoisting shape required by constructors during hoisting. And then the placing and adjusting time of the steel framework 4 is shortened, and the construction period is shortened.
The second rope body 6 is used for connecting each transformer substation steel framework anti-deformation sliding hoisting device with the second bearing body 2. The second bearing body 2 bears the weight of the deformation-preventing sliding hoisting device of the transformer substation steel framework.
The second load-bearing body 2 can be one or more. When the steel framework 4 is too heavy, two cranes can be simultaneously adopted to lift and transport the steel framework 4.
Specifically, the shape slip hoist device that preapres for an unfavorable turn of events of transformer substation steel framework 4 specifically is two. The anti-deformation sliding hoisting system for the transformer substation steel framework 4 further comprises a crane, and the second bearing body 2 is a bearing lifting hook on the crane.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, descriptions related to "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Technical solutions between various embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Claims (10)
1. The deformation-preventing sliding hoisting method for the transformer substation steel framework is characterized by comprising the following steps:
hoisting a first pulley part at the working end of the crane;
at least two second pulley parts are hoisted on two sides of the first pulley part through the first pulley part;
respectively hoisting the middle parts of the plurality of deformation bearing bodies on the second pulley parts, wherein the deformation bearing bodies are connected with the second pulley parts in a sliding manner;
binding the end parts of the deformation supporting bodies on two sides of a steel framework, wherein the length of the deformation supporting bodies is larger than the distance between the connection points of the deformation supporting bodies on the two sides of the steel framework;
and (5) hoisting the steel framework by using a crane.
2. The deformation-preventing sliding hoisting method for the transformer substation steel framework as claimed in claim 1, wherein the number of the connection points of the two deformation carriers and the steel framework is at least three.
3. The deformation-preventing sliding hoisting method for the transformer substation steel framework according to claim 1, wherein the deformation supporting body is a rope; or
The deformation supporting body is a chain, and the second pulley part is provided with a gear meshed with the chain.
4. The deformation-preventing sliding hoisting method for the transformer substation steel framework according to claim 1, wherein the first pulley part and the second pulley part are fixed pulleys.
5. A deformation-preventing sliding hoisting method for a transformer substation steel framework according to claim 1, wherein the second pulley part comprises at least two coaxially connected fixed pulleys;
the deformation supporting body at least comprises two ropes, each rope is connected with the fixed pulley in a matching mode, and the connection point of the end of each rope and the steel framework is different.
6. A transformer substation steel framework deformation-prevention sliding hoisting method according to claim 5, characterized in that the end of each rope is connected to one side of the steel framework; or
The end of each rope is connected to both sides of the steel framework.
7. The transformer substation steel framework deformation-prevention sliding hoisting method according to claim 1, wherein the second pulley part and the deformation-prevention supporting body constitute a self-balancing structure, the self-balancing structure comprises a first load-bearing body, a first rope body, a limiting part for limiting radial movement of the first rope body, and a sliding part, the sliding part and the limiting part are arranged between the first rope body and the first load-bearing body, a body of the limiting part is connected with the first load-bearing body, a working end of the limiting part is connected with the first rope body, and the first rope body is connected with the first load-bearing body in a sliding manner through the sliding part.
8. A method for preventing deformation of a substation steel framework from sliding and hoisting according to claim 1, wherein the limiting member comprises a first roller with a first annular groove at the edge and a second roller with a second annular groove at the edge, one side of the first rope is located in the first annular groove, and the other side of the first rope is located in the second annular groove.
9. The utility model provides a transformer substation steel framework shape slip hoist device that preapres for the anti-deformation slip hoist and mount method of above-mentioned transformer substation steel framework, its characterized in that includes:
the self-balancing structure comprises a first bearing body, a first rope body, a limiting part and a sliding part, wherein the limiting part and the sliding part are used for limiting the radial movement of the first rope body; the two ends of the first rope body are provided with the anti-falling pieces.
10. A method for deformation-resistant sliding hoisting of a substation steel framework according to claim 9, characterized in that the limiting member comprises a first roller having a first annular groove along its edge and a second roller having a second annular groove along its edge, one side of the first rope being located in the first annular groove and the other side of the first rope being located in the second annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967371.7A CN113860137A (en) | 2021-08-23 | 2021-08-23 | Deformation-preventing sliding hoisting method and device for transformer substation steel framework |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110967371.7A CN113860137A (en) | 2021-08-23 | 2021-08-23 | Deformation-preventing sliding hoisting method and device for transformer substation steel framework |
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| CN110510501A (en) * | 2018-05-22 | 2019-11-29 | 宏润建设集团股份有限公司 | Steel reinforcement cage integral hoisting method and hanging apparatus |
| CN209872117U (en) * | 2019-04-12 | 2019-12-31 | 中交一公局第三工程有限公司 | Hoisting device and hoisting system |
| CN219489339U (en) * | 2021-08-23 | 2023-08-08 | 西北水利水电工程有限责任公司 | Transformer substation steel frame anti-deformation sliding hoisting device and system |
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2021
- 2021-08-23 CN CN202110967371.7A patent/CN113860137A/en active Pending
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| CN101434366A (en) * | 2008-12-12 | 2009-05-20 | 宁夏电力建设工程公司 | Hoisting tool and hoisting method for column component |
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| JP2016016912A (en) * | 2014-07-04 | 2016-02-01 | 株式会社キトー | Rope guide mechanism and rope hoist |
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