CN215974672U - Transformer on-load switch hanging core device based on small crane - Google Patents
Transformer on-load switch hanging core device based on small crane Download PDFInfo
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- CN215974672U CN215974672U CN202121894406.0U CN202121894406U CN215974672U CN 215974672 U CN215974672 U CN 215974672U CN 202121894406 U CN202121894406 U CN 202121894406U CN 215974672 U CN215974672 U CN 215974672U
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Abstract
The utility model provides a transformer on-load switch suspended core device based on a small crane, which comprises a base arranged at the top of a transformer box body and an upright post fixed on the base, wherein the top of the upright post is fixedly connected with a suspension arm, the front side end part of the suspension arm is provided with a pulley, the middle part of the suspension arm is fixedly provided with a hoisting motor, an output shaft of the hoisting motor is fixedly provided with a winding roller, the winding roller is wound with a penetrating lifting rope, one end of the lifting rope is fixed at the other end of the winding roller, the other end of the lifting rope penetrates through the pulley and is fixedly provided with a lifting hook, the upper surface of the base and the lower part of the top edge of the transformer box body are provided with fastening clamp components, and the fastening clamp components positioned above and below the base are fixed at the top of the transformer box body through a bolt base Less working procedures, high safety factor and the like.
Description
Technical Field
The utility model relates to a transformer on-load switch hanging core device based on a small crane.
Background
The on-load tap changer is used as a main accessory device of the transformer, and the effective turn number of the high-voltage winding is changed through gear shifting operation, so that the purpose of outputting rated voltage under different power grid working conditions is achieved. In the statistics of the operation faults of the power grid equipment, the fault rate of a transformer body is not high, but the fault caused by a tap switch accounts for more than 50%. Therefore, the on-load tap changer is periodically lifted for special maintenance, and the key points and the difficult points of generating faults and ensuring the safe and stable operation of the main transformer are reduced.
Routine maintenance of the on-load tap changer mainly comprises core lifting inspection, traditional core lifting operation is carried out in a crane lifting mode, at least one special command person needs to be set for commanding in the operation process, the core body of the on-load tap changer is lifted out by the aid of the lifting arm and moved to a designated position for inspection and flushing, and finally the core body is reloaded.
Traditional crane hoisting mode seems simple effective, but has brought many-sided problem:
(1) the crane is adopted for hoisting, so that the operation risk level is improved, and hidden danger is brought to the operation safety;
(2) the crane renting cost is high, and the capital expenditure is large;
(3) during the hoisting operation, at least one special commander needs to be set, so that the number of operation workers is reduced, and the working efficiency is reduced;
(4) the crane is large in size, on-site investigation is needed to confirm whether the safe distance is met before operation, whether the crane can enter the field is judged, and working procedures are increased.
SUMMERY OF THE UTILITY MODEL
The utility model improves the problems, namely the technical problems to be solved by the utility model are that the existing hoisting inspection of the load voltage-regulating tap changer by adopting a crane is time-consuming and labor-consuming, the cost is high, and the requirement on the site is high.
The specific embodiment of the utility model is as follows: the utility model provides a transformer on-load switch suspended core device based on small-size loop wheel machine, is including arranging the base at transformer box top in and being fixed in the stand on the base, stand top fixedly connected with davit, davit front end portion has the pulley, and the davit middle part is fixed with lifts by crane the motor, the output shaft that lifts by crane the motor is fixed with the winding roll, the winding roll winding has the lifting rope of passing, lifting rope one end is fixed in the winding roll other end and passes the pulley and be fixed with the lifting hook, the upper surface of base and transformer box top edge lower part have fastening folder subassembly, and the fastening folder subassembly that lies in base top and below is fixed in transformer box top through the bolt base.
Furthermore, a support frame is arranged at the top of the upright post, a hinge shaft penetrating through the rear side of the suspension arm to realize hinge joint with the suspension arm is arranged on the support frame, a plurality of positioning holes distributed along an arc are formed in the rear side of the support frame, a limiting hole capable of corresponding to the positioning holes is formed in the rear portion of the suspension arm, and a limiting bolt penetrates through the limiting hole and the positioning holes to realize limitation of the angle of the suspension arm.
Furthermore, the fastening clamp assembly comprises clamping pieces B positioned on two sides of the base and a clamping piece A positioned between the two clamping pieces B, a waist circular hole is formed in the middle of each clamping piece B, locking holes are formed in the outer sides of the clamping pieces B, locking slotted holes are formed in two sides of each clamping piece A, the fastening clamp assemblies positioned on the upper surface of the base and on the lower portion of the edge of the top of the transformer box body are correspondingly arranged, the clamping pieces B which are adjacent up and down are fixedly connected through bolts penetrating through the waist circular holes and the locking holes, and the clamping pieces A which are adjacent up and down are fixed through the bolts penetrating through the locking slotted holes.
Furthermore, the davit is including supporting the armed lever and overlapping in the outside support arm cover of supporting the armed lever, support arm cover and support armed lever have laid the jack along length direction, and jack department runs through has arm cover fitting pin, thereby can adjust the length of davit through changing the length of supporting the armed lever in support arm cover.
Furthermore, the stand is hollow inside and is fixed with the electric jar, the flexible and support frame fixed connection of electric jar.
Furthermore, the limiting hole is located on the rear side of the support arm sleeve, and the pulley is hinged to the front side end of the support arm rod.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the core hanging function of the main transformer on-load switch is realized by combining the small crane and the fastening clamp, the small crane can be conveniently fixed on the top of the transformer box body according to needs to hoist the on-load tap changer and move to a specified position, and the fastening clamp component can adapt to the top edge of the transformer box body with common models in a transformer substation, so that the appearance, size, weight and operation requirements of various on-load switches are met, and the combined type on-load tap changer has the characteristics of light weight, low cost, high efficiency, no investigation, few processes, high safety coefficient and the like.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic top view of the transformer tank with the base clamped thereon.
FIG. 3 is a side view of the clip of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, a transformer on-load switch suspended core device based on a small crane comprises a base 10 arranged at the top of a transformer box 100 and a vertical column 110 fixed on the base, wherein a suspension arm 20 is fixedly connected to the top of the vertical column, a pulley 210 is arranged at the front end of the suspension arm, a hoisting motor 220 is fixed in the middle of the suspension arm, a winding roller is fixed on an output shaft of the hoisting motor, a penetrating lifting rope 230 is wound on the winding roller, one end of the lifting rope is fixed on the winding roller, the other end of the lifting rope penetrates through the pulley and is fixed with a lifting hook 240, fastening clamp components are arranged on the upper surface of the base and the lower part of the top edge of the transformer box, and the fastening clamp components positioned above and below the base are fixed on the top of the transformer box through bolt bases.
In this embodiment, the fastening clip assembly includes a clamping member B320 located on both sides of the base and a clamping member a310 located between the two clamping members B, the middle of the clamping member B320 has a waist circular hole 321, the outer side of the clamping member B has a locking hole 322, both sides of the clamping member a have locking slot holes 311, the fastening clip assembly located on the upper surface of the base and the lower portion of the top edge of the transformer tank are correspondingly disposed, the clamping members B adjacent to each other up and down are fixedly connected by bolts 101 penetrating through the waist circular hole and the locking hole, and the clamping members a adjacent to each other up and down are fixed by bolts 101 penetrating through the locking slot holes.
In order to better adapt to the working conditions of different sizes and distances, the suspension arm comprises a support arm rod 201 and a support arm sleeve 202 sleeved outside the support arm rod, a plurality of connection insertion holes 203 are distributed on the support arm sleeve and the support arm rod along the length direction, arm sleeve locking pins 204 penetrate through the connection insertion holes, and the length of the whole suspension arm 20 can be adjusted by changing the length of the support arm rod in the support arm sleeve.
In this embodiment, a supporting frame 111 is disposed on the top of the upright 110, the supporting frame has a hinge shaft 112 penetrating through the rear side of the boom to realize the hinge joint with the boom, the rear side of the supporting frame has a plurality of positioning holes 113 arranged along an arc, the rear side of the supporting arm sleeve 202 at the rear portion of the boom 20 has a limiting hole 205 capable of corresponding to the positioning holes, and a limiting bolt 114 penetrates through the limiting hole and the positioning hole 113 to realize the limitation of the boom angle.
In this embodiment, the plurality of positioning holes 113 are arranged in the circumferential direction around the hinge shaft 112, and the angle between the support arm sleeve 202 and the upright column 110 can be rotated by using the hinge shaft 112, and the angle of the suspension arm can be limited by the limit bolt penetrating through the limit hole and the positioning hole 113.
In this embodiment, the pulley 240 is hinged to the front end of the support arm 201.
During operation, the base is fixed on the top of the transformer box body, the length of the supporting arm sleeve 202 of the supporting arm rod 201 is adjusted according to the requirement of field operation, and then the lifting rope lifting switch is pulled through the lifting motor 220.
In the second embodiment, an electric cylinder is fixed in the hollow upright column, and the electric cylinder is fixedly connected with the support frame in a telescopic manner. Thereby adjusting the height of the column 110.
If the utility model discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the utility model can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.
Claims (6)
1. The utility model provides a transformer on-load switch suspended core device based on small-size loop wheel machine, its characterized in that, including arranging the base at transformer box top in and being fixed in the stand on the base, stand top fixedly connected with davit, davit front end portion has the pulley, and the davit middle part is fixed with lifts by crane the motor, the output shaft that lifts by crane the motor is fixed with the winding roller, the winding roller winding has the messenger, the messenger wire one end is fixed in the winding roller other end and passes the pulley and be fixed with the lifting hook, the upper surface of base and transformer box top edge lower part have the fastening folder subassembly, and the fastening folder subassembly that lies in base top and below is fixed in transformer box top through the bolt base.
2. The transformer on-load switch suspended core device based on the small crane as claimed in claim 1, wherein the top of the column is provided with a support frame, the support frame is provided with a hinge shaft penetrating through the rear side of the boom to realize hinge joint with the boom, the rear side of the support frame is provided with a plurality of positioning holes arranged along an arc, the rear part of the boom is provided with a limiting hole capable of corresponding to the positioning holes, and a limiting bolt penetrates through the limiting hole and the positioning holes to realize the limitation of the angle of the boom.
3. The transformer on-load switch core hanging device based on the small crane according to claim 1 or 2, wherein the fastening clamp assembly comprises clamping pieces B positioned on two sides of the base and a clamping piece A positioned between the two clamping pieces B, a waist circular hole is formed in the middle of each clamping piece B, locking holes are formed in the outer sides of the clamping pieces B, locking slotted holes are formed in two sides of each clamping piece A, the fastening clamp assemblies positioned on the upper surface of the base and on the lower portion of the top edge of the transformer box body are correspondingly arranged, the clamping pieces B which are adjacent up and down are fixedly connected through bolts penetrating through the waist circular holes and the locking holes, and the clamping pieces A which are adjacent up and down are fixed through the bolts penetrating through the locking slotted holes.
4. The transformer on-load switch suspension core device based on the small crane as claimed in claim 2, wherein the suspension arm comprises a support arm rod and a support arm sleeve sleeved outside the support arm rod, the support arm sleeve and the support arm rod are provided with connection insertion holes along the length direction, arm sleeve locking pins penetrate through the connection insertion holes, and the length of the suspension arm can be adjusted by changing the length of the support arm rod in the support arm sleeve.
5. The transformer on-load switch suspended core device based on the small crane as claimed in claim 1 or 2, wherein the vertical column is hollow and is fixed with an electric cylinder, and the electric cylinder is fixedly connected with the support frame in a telescopic manner.
6. The transformer on-load switch suspended core device based on the small crane as claimed in claim 4, wherein the limiting hole is located at the rear side of the support arm sleeve, and the pulley is hinged at the front side end of the support arm rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121894406.0U CN215974672U (en) | 2021-08-13 | 2021-08-13 | Transformer on-load switch hanging core device based on small crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121894406.0U CN215974672U (en) | 2021-08-13 | 2021-08-13 | Transformer on-load switch hanging core device based on small crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215974672U true CN215974672U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121894406.0U Active CN215974672U (en) | 2021-08-13 | 2021-08-13 | Transformer on-load switch hanging core device based on small crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215974672U (en) |
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2021
- 2021-08-13 CN CN202121894406.0U patent/CN215974672U/en active Active
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