CN114180447A - Self-pressing hoisting tool and hoisting method for coil end ring of large transformer - Google Patents
Self-pressing hoisting tool and hoisting method for coil end ring of large transformer Download PDFInfo
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- CN114180447A CN114180447A CN202111317472.6A CN202111317472A CN114180447A CN 114180447 A CN114180447 A CN 114180447A CN 202111317472 A CN202111317472 A CN 202111317472A CN 114180447 A CN114180447 A CN 114180447A
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- hoisting
- tool
- end ring
- ring
- pressing block
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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
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to a self-pressing hoisting tool and a hoisting method for a coil end ring of a large transformer, and belongs to the technical field of transformer manufacturing and detection. The technical scheme is as follows: the tool seat (3) comprises a tool seat bottom plate (31), a tool seat side plate (32) and a tool seat top plate (33), the tool seat top plate (33) is movably connected with the pressing block (1) through a rotating shaft (5), the hoisting ring (4) is fixedly connected to the top of the pressing block (1), one end of the spring (2) is fixedly connected with the tool seat side plate (32), and the other end of the spring (2) is fixedly connected with the pressing block (1). The invention has the beneficial effects that: by utilizing the hoisting tool, the hoisting efficiency and the hoisting quality of the end ring are improved, the production cost is reduced, and the market competitiveness of the product is improved.
Description
Technical Field
The invention relates to a self-pressing hoisting tool and a hoisting method for a coil end ring of a large transformer, and belongs to the technical field of transformer manufacturing and detection.
Background
The high-end transformer with high voltage level and large capacity inevitably causes the transformer to have larger overall dimension, the coil end ring of the transformer with high voltage level has very large dimension, and the most of the external diameter dimension can reach more than 2 m. During the assembly process, operators need to transport the end rings to a space of 2.5-3 meters or even higher for assembly work. The end of the end ring is placed horizontally by a plurality of people, in the lifting or assembling process, if the end ring is bent and uneven, the cushion block of the end ring is easy to fall off, the cushion block after falling off needs to be accurately positioned for bonding again, the operation is inconvenient, the adhesive needs to be dried after bonding, the assembling work can be carried out after the adhesive is firmly bonded, and the production progress is delayed.
In the conventional hoisting process, as shown in the attached drawing, three-point hoisting is performed by using three slings, wherein the tail end sling penetrates through the lower part of the end ring and is fixed by penetrating through a shackle and hanging the sling on a vertical sling. Firstly, the process is complicated to operate, the large end ring hoisting and hanging point needs about 2-3 minutes of operation, and due to the fact that the number of the end rings needing to be hoisted is large, time needed for hanging and hanging is accumulated, and much time is delayed; secondly, because the operation is complicated, the hanging quantity is generally three points for striving for the production progress. At the moment, three parts of the end ring are stressed to be high, the rest parts of the end ring are bent downwards under the influence of gravity, the fall between the high point and the low point of the integral deformation of the end ring can reach 0.3m, and the cushion block is easy to fall off due to the large deformation; thirdly, as the hanging process, the dismounting process has much time delay; fourthly, after the end ring is placed in place, the sling is disassembled and pulled out, the thickness of the end part of the sling is large, the position of the end ring is easy to change in the pulling-out process, and secondary adjustment is needed.
The conventional end ring hoisting process is high in time cost, brings a lot of repeated work and has inevitable quality hidden troubles.
The problems directly cause complex operation, high technical requirements on operators, low production efficiency, increased production cost and low yield, and seriously affect the production progress and production plan.
Aiming at the problems, in order to improve the hoisting efficiency and the hoisting quality of the end ring, reduce the production cost and improve the market competitiveness of products, the self-pressing hoisting tool and the hoisting method for the end ring of the large transformer coil are provided.
Disclosure of Invention
The invention provides a self-pressing hoisting tool and a hoisting method for a large transformer coil end ring, wherein the hoisting tool can be used for effectively improving the hoisting efficiency of the end ring in the hoisting process, hoisting quality, reducing production cost, improving the market competitiveness of products and solving the problems in the background art.
The technical scheme of the invention is as follows: a self-pressing hoisting tool for a large transformer coil end ring comprises a pressing block, a spring, a tool seat, a hoisting ring and a rotating shaft.
The tool seat comprises a tool seat bottom plate, a tool seat side plate and a tool seat top plate, the tool seat top plate is movably connected with a pressing block through a rotating shaft, the pressing block can rotate around the rotating shaft relative to the tool seat top plate, a hoisting ring is fixedly connected to the top of the pressing block, during hoisting, the hoisting ring is matched with a lifting hook to complete hoisting, one end of a spring is fixedly connected with the tool seat side plate, and the other end of the spring is fixedly connected with the pressing block.
When the tool is in work, the pressing block is supported by the spring and inclines outwards, the hoisting tool is inserted into the position where the end ring is provided with the cushion block, the gap between the end ring and the bottom plate of the tool seat is large enough, the pressing block does not need to be manually adjusted by an operator in the insertion process, the tool can be easily placed at the position needing to be clamped, hoisting points needed in the hoisting process are sequentially placed on the hoisting tool according to the method, and the hoisting ring is connected with the hanging strip.
The suspender pulls the hoisting tool upwards at the hoisting ring, the pressing block rotates to be vertical or close to a vertical state by taking the rotating shaft as an axis after being stressed, the spring is compressed at the moment, and the bottom of the pressing block and the bottom plate of the tool seat firmly clamp the end ring.
The end ring is lifted and adjusted to a proper position, the overhead traveling crane is lowered, the hanging belt is loosened, the spring is loosened and rebounded to jack up the pressing block, so that the clamping force between the pressing block and the bottom plate of the tool seat is eliminated, and the hoisting tool is easily taken out.
The hoisting process is simple and convenient and easy, and originally, one operator can finish the operation by only one operator at each hoisting point.
Preferably, the bottom of the pressing block is provided with a wavy surface, the upper surface of the tool seat bottom plate is provided with a wavy surface, and the end ring is firmly clamped by the wavy surface at the bottom of the pressing block and the wavy surface of the tool seat bottom plate during hoisting.
Preferably, the hoisting tool further comprises a magnetic support steel bar, and the tail end of the tool seat bottom plate is fixedly connected with an end magnetic slope. The magnetic force supports the billet and the tip magnetic force slope is magnetic material and makes, adsorbs each other during supporting use, is difficult for droing, in the face of the diameter size great, the width is less, during the less end ring hoist and mount of thickness, inlays the magnetic force support billet between tip magnetic force slope and the end ring that adjacent hoisting point frock seat bottom plate end linked firmly, selects to increase the magnetic force support billet according to the handling actual conditions, supports the adjustment to the crooked position that sinks. The lifting device is suitable for lifting and assembling large end rings which are large in area, low in hardness, easy to deform and easy to damage.
Preferably, the fixed connection mode of the hoisting ring and the pressing block is welding.
A hoisting method of a large transformer coil end ring self-pressing hoisting tool adopts the hoisting tool and comprises the following steps: firstly, placing hoisting tools at hoisting points uniformly distributed along the circumference of an end ring; secondly, the hanging belt is connected with the hoisting tool through the hoisting ring, and the hoisting tool is pulled upwards, so that the pressing block and the tool seat bottom plate firmly clamp the end ring; starting the crown block, completing lifting and hoisting, lifting and adjusting the end ring to a proper position, descending the crown block, loosening the lifting belt, and ejecting the pressing block by loosening and rebounding the spring, thereby eliminating the clamping force of the pressing block and the bottom plate of the tool seat and easily taking out the hoisting tool.
The method specifically comprises the following steps: firstly, placing hoisting tools on hoisting points uniformly distributed along the circumference of an end ring, and embedding magnetic support steel bars between end magnetic slopes fixedly connected with the tail ends of bottom plates of adjacent hoisting point tool seats and the end ring, so as to improve hoisting rigidity; secondly, the hanging belt is connected with the hoisting tool through the hoisting ring, and the hoisting tool is pulled upwards, so that the pressing block and the tool seat bottom plate firmly clamp the end ring; starting the crown block, completing lifting and hoisting, lifting and adjusting the end ring to a proper position, descending the crown block, loosening the lifting belt, and ejecting the pressing block by loosening and rebounding the spring, thereby eliminating the clamping force of the pressing block and the bottom plate of the tool seat and easily taking out the hoisting tool.
The invention has the beneficial effects that: by utilizing the hoisting tool, the hoisting efficiency and the hoisting quality of the end ring are improved, the production cost is reduced, and the market competitiveness of the product is improved.
Drawings
FIG. 1 is a schematic diagram of a conventional end ring hoisting process;
FIG. 2 is a schematic structural view of an end ring self-pressing hoisting tool of the invention;
FIG. 3 is a schematic view of the use state of the end ring self-pressing hoisting tool structure of the invention;
FIG. 4 is a schematic view of the end ring hoisting process of the present invention;
in the figure: 1-a pressing block, 2-a spring, 3-a tool seat, 31-a tool seat bottom plate, 32-a tool seat side plate, 33-a tool seat top plate, 4-a hoisting ring, 5-a rotating shaft, 6-a hoisting tool, 7-a hanging strip, 8-an end ring, 9-an additional hoisting tool, 10-an end magnetic slope and 11-a magnetic support steel bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a self-pressing hoisting tool 6 for a coil end ring of a large transformer comprises a pressing block 1, a spring 2, a tool seat 3, a hoisting ring 4 and a rotating shaft 5.
The tool seat 3 comprises a tool seat bottom plate 31, a tool seat side plate 32 and a tool seat top plate 33, the tool seat top plate 33 is movably connected with a pressing block 1 through a rotating shaft 5, the pressing block 1 can rotate around the rotating shaft 5 relative to the tool seat top plate 33, a hoisting ring 4 is fixedly connected to the top of the pressing block 1, during hoisting, the hoisting ring 4 is matched with a lifting hook to complete hoisting, one end of a spring 2 is fixedly connected with the tool seat side plate 32, the other end of the spring 2 is fixedly connected with the pressing block 1, a wavy surface is machined at the bottom of the pressing block 1, and the tool seat bottom plate 31 is a wavy surface.
When the tool is in operation, the pressing block 1 is supported by the spring 2 and inclines outwards, the hoisting tool 6 is inserted into the hoisting position with the cushion block on the end ring, the gap between the end ring and the tool seat bottom plate 31 is large enough, the pressing block 1 is not required to be manually adjusted by an operator in the insertion process, the position needing to be clamped can be easily arranged, the hoisting tool is sequentially placed at the hoisting point needed in the hoisting process according to the method, and the hoisting ring 4 is connected with the hanging strip 7.
The hanging strip 7 pulls the hoisting tool 6 upwards at the hoisting ring 4, the pressing block 1 is stressed to rotate to be vertical or close to the vertical state by taking the rotating shaft 5 as an axis, and the spring 2 is compressed at the moment. The wavy surface of the bottom of the pressing block 1 and the wavy surface of the tool base bottom plate 31 firmly clamp the end ring.
The end ring is lifted and adjusted to a proper position, the overhead traveling crane is lowered, the hanging belt 7 is loosened, the spring 2 is loosened and rebounded to jack up the pressing block 1, so that the clamping force of the pressing block 1 and the tool base bottom plate 31 is eliminated, and the hoisting tool is easily taken out. The hoisting process is simple and convenient and easy, and originally, one operator can finish the operation by only one operator at each hoisting point.
As another embodiment of the invention: the hoisting tool 6 further comprises a magnetic support steel bar 11, and the tail end of the tool seat bottom plate 31 is fixedly connected with an end magnetic slope 10. Magnetic force supports billet 11 and tip magnetic force slope 10 and is magnetic material and makes, adsorbs each other during supporting use, is difficult for droing, in the face of the diameter size great, the width is less, during the less end ring hoist and mount of thickness, inlays magnetic force support billet 11 between tip magnetic force slope 10 and the end ring that 31 ends of adjacent hoisting point frock seat bottom plate link firmly, selects to increase magnetic force support billet 11 according to the handling actual conditions, supports the adjustment to the crooked position that sinks.
As another embodiment of the invention: when the hoisting tool 6 is used for hoisting, more than 3 hoisting tools can be uniformly arranged along the circumferential direction of the end ring, as shown in the attached drawing 4, the hoisting tool 9 is added to further increase the hoisting rigidity, the hoisting and assembling work of the transformer assembly which is large in diameter, large in area of the end ring, low in hardness, easy to deform and easy to damage is completed, the working efficiency is improved, and the product quality is ensured.
A hoisting method of a large transformer coil end ring self-pressing hoisting tool adopts the hoisting tool, and comprises the following steps in work: firstly, placing hoisting tools at hoisting points uniformly distributed along the circumference of an end ring; secondly, the hanging strip 7 is connected with a hoisting tool 6 through a hoisting ring 4, the hoisting tool 6 is pulled upwards, the pressing block 1 is stressed to rotate to be vertical or close to the vertical state by taking the rotating shaft 5 as an axis, the spring 2 is compressed at the moment, and the end ring is firmly clamped by the wavy surface at the bottom of the pressing block 1 and the wavy surface of the tool seat bottom plate 31; starting the crown block, completing lifting and hoisting, lifting and adjusting the end ring to a proper position, descending the crown block, loosening the lifting belt 7, and rebounding the loosening of the spring 2 to jack up the pressing block 1, so that the clamping force of the pressing block 1 and the tool seat bottom plate 31 is eliminated, and the hoisting tool is easily taken out.
The method specifically comprises the following steps: firstly, placing hoisting tools 6 at hoisting points uniformly distributed along the circumference of an end ring, and embedding magnetic support steel bars 11 between end magnetic slopes 10 fixedly connected with the tail ends of bottom plates 31 of adjacent hoisting point tool seats and the end ring to improve hoisting rigidity; secondly, the hanging strip 7 is connected with the hoisting tool 6 through the hoisting ring 4, and the hoisting tool 6 is pulled upwards, so that the pressing block 1 and the tool seat bottom plate 31 firmly clamp the end ring; starting the crown block, completing lifting and hoisting, lifting and adjusting the end ring to a proper position, descending the crown block, loosening the lifting belt 7, and rebounding the loosening of the spring 2 to jack up the pressing block 1, so that the clamping force of the pressing block 1 and the tool seat bottom plate 31 is eliminated, and the hoisting tool is easily taken out.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a large-scale transformer coil end ring is from pressing hoist and mount frock which characterized in that: hoist and mount frock (6) are including compact heap (1), spring (2), frock seat (3), hoisting ring (4) and pivot (5), frock seat (3) are including frock seat bottom plate (31), frock seat curb plate (32) and frock seat roof (33), and frock seat roof (33) link firmly in compact heap (1) top through pivot (5) and compact heap (1) swing joint, hoisting ring (4), and spring (2) one end links firmly with frock seat curb plate (32), and the spring (2) other end links firmly with compact heap (1).
2. The self-compacting hoisting tool for the coil end ring of the large transformer as claimed in claim 1, wherein the self-compacting hoisting tool comprises: the bottom of the pressing block (1) is provided with a wavy surface, and the upper surface of the tool seat bottom plate (31) is provided with a wavy surface.
3. The self-compacting hoisting tool for the coil end ring of the large transformer as claimed in claim 2, wherein the self-compacting hoisting tool comprises: the hoisting tool further comprises a magnetic support steel bar (11), and the tail end of the tool seat bottom plate (31) is fixedly connected with an end magnetic slope (10).
4. The self-compacting hoisting tool for the coil end ring of the large transformer according to claim 3, wherein the self-compacting hoisting tool comprises: the hoisting ring (4) is fixedly connected with the pressing block (1) by welding.
5. A hoisting method of a self-pressing hoisting tool for a coil end ring of a large transformer adopts the hoisting tool defined by any one of claims 1 to 4, and is characterized by comprising the following steps: firstly, placing hoisting tools (6) at hoisting points which are uniformly distributed along the circumference of an end ring; secondly, the hanging belt (7) is connected with the hoisting tool (6) through the hoisting ring (4), and the hoisting tool (6) is pulled upwards, so that the pressing block (1) and the tool seat bottom plate (31) firmly clamp the end ring; starting the crown block, completing lifting and hoisting, lifting and adjusting the end ring to a proper position, descending the crown block, loosening the lifting belt (7), and ejecting the pressing block (1) through loosening and rebounding of the spring (2), so that the clamping force of the pressing block (1) and the tool seat bottom plate (31) is eliminated, and the hoisting tool is easily taken out.
6. The hoisting method of the self-compacting hoisting tool for the coil end ring of the large transformer as claimed in claim 5, which is characterized by comprising the following steps: firstly, hoisting tools (6) are placed at hoisting points which are uniformly distributed along the circumference of an end ring, and magnetic support steel bars (11) are embedded between end magnetic slopes (10) fixedly connected with the tail ends of bottom plates (31) of adjacent hoisting point tool seats and the end ring, so that the hoisting rigidity is improved; secondly, the hanging belt (7) is connected with the hoisting tool (6) through the hoisting ring (4), and the hoisting tool (6) is pulled upwards, so that the pressing block (1) and the tool seat bottom plate (31) firmly clamp the end ring; starting the crown block, completing lifting and hoisting, lifting and adjusting the end ring to a proper position, descending the crown block, loosening the lifting belt (7), and ejecting the pressing block (1) through loosening and rebounding of the spring (2), so that the clamping force of the pressing block (1) and the tool seat bottom plate (31) is eliminated, and the hoisting tool is easily taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317472.6A CN114180447A (en) | 2021-11-09 | 2021-11-09 | Self-pressing hoisting tool and hoisting method for coil end ring of large transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317472.6A CN114180447A (en) | 2021-11-09 | 2021-11-09 | Self-pressing hoisting tool and hoisting method for coil end ring of large transformer |
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| Publication Number | Publication Date |
|---|---|
| CN114180447A true CN114180447A (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111317472.6A Pending CN114180447A (en) | 2021-11-09 | 2021-11-09 | Self-pressing hoisting tool and hoisting method for coil end ring of large transformer |
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| CN (1) | CN114180447A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116690230A (en) * | 2023-08-08 | 2023-09-05 | 吴江市天富金属制品有限公司 | Chassis frame convenient for transportation for numerical control machine tool |
-
2021
- 2021-11-09 CN CN202111317472.6A patent/CN114180447A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116690230A (en) * | 2023-08-08 | 2023-09-05 | 吴江市天富金属制品有限公司 | Chassis frame convenient for transportation for numerical control machine tool |
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