CN113013770B - Modular drawing type mutual inductor for switch cabinet - Google Patents
Modular drawing type mutual inductor for switch cabinet Download PDFInfo
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- CN113013770B CN113013770B CN202110241414.3A CN202110241414A CN113013770B CN 113013770 B CN113013770 B CN 113013770B CN 202110241414 A CN202110241414 A CN 202110241414A CN 113013770 B CN113013770 B CN 113013770B
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- switch cabinet
- mutual inductor
- current mutual
- trolley
- modular
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/26—Arrangements of fuses, resistors, voltage arresters or the like
Abstract
The invention provides a modular pull-out type mutual inductor for a switch cabinet, which comprises a current mutual inductor, wherein the current mutual inductor is fixedly connected with an insulating cover, the current mutual inductor is provided with a hand cart frame, the bottom of the hand cart frame is provided with a plurality of pulleys, the pulleys are connected on a sliding rail in a sliding manner, the sliding rail is arranged in the switch cabinet, the current mutual inductor is also provided with a service transfer trolley which is matched with the current mutual inductor for use, and the hand cart frame is also connected with a handle. The current transformer is provided with a threaded hole, the threaded hole is used for being in threaded connection with a switch cabinet, the switch cabinet is provided with a fixed operation window, and the fixed operation window is used for enabling the current transformer and the switch cabinet to be fixedly connected together through threads. The assembly is completed outside the cabinet, the assembled modularized draw-out type current transformer handcart is pushed into the inner track of the cabinet through the special service trolley and then is connected with the inner bus bar of the cabinet, and therefore the assembly method is safe in operation, simple and convenient in installation and humanized in maintenance and overhaul.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a modular pull-out transformer for a switch cabinet.
Background
The existing armored metal-enclosed switchgear is mainly characterized in that except a handcart room, other primary electrical elements are fixedly installed, and the armored alternating-current metal-enclosed switchgear refers to a bus room, a cable room, a relay instrument room and a circuit breaker handcart room which are arranged in a cabinet body, wherein the cable room and the circuit breaker handcart room are communicated with the lower portion of the cabinet body, the bus room is arranged on the upper portion of the rear portion of the armored alternating-current metal-enclosed switchgear, and the relay instrument room is arranged above the bus room. And a metal partition plate is arranged between the bus chamber and the breaker chamber as well as between the bus chamber and the cable chamber, and comprises a loading and unloading partition plate fixed on the cabinet body and a movable valve type partition plate. The bus chamber is provided with a static contact device and a current transformer. The cable chamber is provided with a cable, a lightning arrester, a grounding switch and a grounding bus which are connected with the current transformer. The cable inlet end of the cable chamber is provided with a live display insulator, and the operating mechanism is provided with a live display device. Because the equipment space is limited, the size of the primary electric element is large, and in addition, the busbar connection is needed, the equipment installation and the maintenance are very inconvenient, and especially, the potential safety hazard also exists in the aspect of safety.
Disclosure of Invention
The invention solves the problems of inconvenience in equipment installation and maintenance and potential safety hazards in the prior art, and provides a modular pull-out type current transformer for a switch cabinet.
In order to realize the purpose, the following technical scheme is provided:
the utility model provides a modularization pull formula mutual-inductor for cubical switchboard, includes current transformer, current transformer fixedly connected with insulating boot, current transformer is equipped with the handcart frame, the handcart frame bottom is equipped with a plurality of pulleys, pulley sliding connection is on the slide rail, the slide rail sets up in the cubical switchboard, current transformer still is equipped with the supporting service transfer car (buggy) that uses, the handcart frame still is connected with the handle. The current transformer is provided with a threaded hole, the threaded hole is used for being in threaded connection with a switch cabinet, the switch cabinet is provided with a fixed operation window, and the fixed operation window is used for fixing the current transformer and the switch cabinet together through threaded connection.
The current transformer can be assembled outside the cabinet, and the assembled modularized draw-out type current transformer handcart is pushed into a slide rail in the switch cabinet through a service transfer trolley used in a matched mode and then is connected with a busbar in the switch cabinet. When in maintenance, only the bolt connected with the modularized draw-out type current transformer handcart needs to be removed, then the bolt is drawn out to the service transfer trolley used in a matched mode, and then the service transfer trolley used in a matched mode is transferred to the safety channel for maintenance.
Preferably, the threaded hole is a threaded hole embedded with a nut. Because the current transformer needs regular disassembly and maintenance, the threads of the current transformer are frequently rubbed, and the embedded nut is used for enhancing the thread strength of the current transformer and prolonging the service life of the current transformer.
Preferably, the service transfer trolley comprises a trolley body, a track for mutual inductor transfer is arranged on the trolley body, the track is connected with the trolley body through a plurality of height adjusting mechanisms, each height adjusting mechanism comprises an upper nut, an adjusting nut and a lower nut which are sequentially in threaded connection with a bolt, the upper nuts are fixed on the track, the lower nuts are fixed on the trolley body, and the front end of the trolley body is connected with a limiting device which is used for connecting the trolley body with a switch cabinet.
Clockwise or anticlockwise rotation adjusting nut, can change adjusting nut and last nut's relative position, thereby make the relative distance of track and automobile body change, thereby output height has been adjusted, be used for making the track aim at the slide rail in the cubical switchboard on the one hand, make things convenient for the transportation of mutual-inductor, on the other hand is height around being used for adjusting, set up certain angle, make the mutual-inductor have the slip trend, including forward slip trend and backward slip trend, when setting up to backward slip trend, avoid the mutual-inductor because jolt from the front end landing in the transportation, when setting up to forward slip trend, reduce artificial thrust, make the mutual-inductor utilize the dead weight to slide to the cubical switchboard in, convenient operation. The purpose of the limiting device is to connect the vehicle body and the switch cabinet, limit the running vehicle and avoid the mutual inductor from falling in the sliding process.
Preferably, an annular handle is arranged on the outer side of the adjusting nut. The purpose of setting up annular handle is the moment of torsion of increase adjusting nut for output height control is more laborsaving.
Preferably, the upper nut is provided with a plurality of threaded holes and is fixedly connected with the track through the threaded holes; the lower nut is provided with a plurality of threaded holes and is fixedly connected with the vehicle body through the threaded holes.
Preferably, the lower nut is provided with an extension section, and the extension section is embedded in the vehicle body. The extending section of the lower nut is embedded in the vehicle body, so that the transverse bearing capacity of the height adjusting mechanism is enhanced, and the structural strength is improved.
Preferably, a baffle is arranged on the rear side of the track, and an alignment connecting section is arranged on the front side of the track. The counterpoint linkage segment's effect is on the slide rail of overlap joint in the cubical switchboard, leads for mutual-inductor moving direction for the mutual-inductor removes more accurately and smoothly.
Preferably, the front end of the bottom of the vehicle body is provided with a steering wheel, and the rear end of the bottom of the vehicle body is provided with a directional wheel.
Preferably, the limiting device comprises an alignment shaft rotatably connected with the front end of the vehicle body, a cylindrical limiting block is eccentrically arranged at the front end of the alignment shaft, a positioning handle is connected with the rear end of the alignment shaft, a clamping groove is formed above and below the alignment shaft of the vehicle body, and the clamping groove is used for clamping the positioning handle.
The below that the cubical switchboard corresponds the slide rail is equipped with the counterpoint hole, and the below draw-in groove at the automobile body is put to the handle card of positioning during initial condition, and the cylinder stopper can insert in the counterpoint hole this moment, accomplishes the back of counterpointing when the automobile body, puts the handle card in the top draw-in groove of automobile body for the rotatory skew in position of cylinder stopper, makes partly card of cylinder stopper put at the counterpoint hole terminal surface, accomplishes stop device spacing to the operation car, avoids the mutual-inductor to take place at the condition that the in-process that slides dropped.
The invention has the beneficial effects that:
1. the current transformer can be assembled outside the cabinet, and the assembled modularized draw-out type current transformer handcart is pushed into a slide rail in the switch cabinet through a service transfer trolley used in a matched mode and then is connected with a busbar in the switch cabinet, so that the operation is safe, the installation is simple and convenient, and the maintenance is humanized;
2. the embedded nut enhances the thread strength of the current transformer and prolongs the service life of the current transformer;
3. set up stop device, connect automobile body and cubical switchboard, carry on spacingly to the operation car, avoid the mutual-inductor to take place at the condition that the in-process that slides dropped.
Drawings
FIG. 1 is a structural view of a current transformer of the embodiment;
FIG. 2 is a schematic front view of the switchgear of the embodiment;
FIG. 3 is a schematic rear end view of a switchgear of an embodiment;
FIG. 4 is a schematic view of a service transfer car configuration of the embodiment;
FIG. 5 is a cross-sectional view of the height adjustment mechanism of the embodiment;
FIG. 6 is an initial state diagram of the spacing device of the embodiment;
FIG. 7 is an operational state diagram of the limiting means of the embodiment;
wherein: 1. the device comprises a vehicle body 2, a rail 3, a height adjusting mechanism 4, a sliding rail 5, an alignment hole 6, an alignment shaft 7, a current transformer 11, a directional wheel 12, a steering wheel 13, a clamping groove 21, a baffle plate 22, an alignment connecting section 31, an upper nut 32, an adjusting nut 33, a lower nut 61, a cylindrical limiting block 62, an alignment handle 71, an insulating cover 72, a handcart frame 73, a pulley 74, a handle 75, an embedded nut 76 and a fixed operation window.
Detailed Description
The embodiment is as follows:
the embodiment provides a modular pull-out transformer for a switch cabinet, and referring to fig. 1, fig. 2 and fig. 3, the modular pull-out transformer comprises a current transformer 7, an insulating cover 71 is fixedly connected to the current transformer 7, the current transformer 7 is provided with a handcart frame 72, a plurality of pulleys 73 are arranged at the bottom of the handcart frame 72, the pulleys 73 are slidably connected to a slide rail 4, the slide rail 4 is arranged in the switch cabinet, the current transformer 7 is further provided with a service transfer trolley used in a matched manner, and the handcart frame 72 is further connected with a handle 74. The current transformer 7 is provided with a threaded hole, the threaded hole is used for being in threaded connection with a switch cabinet, the switch cabinet is provided with a fixed operation window 76, and the fixed operation window 76 is used for fixing the current transformer 7 and the switch cabinet together through threaded connection. The threaded hole is a threaded hole into which the nut 75 is inserted.
Referring to fig. 4, the service transfer trolley comprises a trolley body 1, a track 2 for mutual inductor transfer is arranged on the trolley body 1, the track 2 is provided with a left track and a right track, each track 2 is connected with the trolley body 1 through 2 height adjusting mechanisms 3, the height adjusting mechanisms 3 are respectively arranged at two ends of the track 2, each height adjusting mechanism 3 comprises an upper nut 31, an adjusting nut 32 and a lower nut 33 which are sequentially in threaded connection on a bolt 34, the upper nut 31 is fixed on the track 2, the lower nut 33 is fixed on the trolley body 1, the front end of the trolley body 1 is connected with a limiting device, and the limiting device is used for connecting the trolley body 1 with a switch cabinet. The adjusting nut 32 is provided with a ring-shaped handle on the outer side. The upper nut 31 is provided with 3 threaded holes and is fixedly connected with the track 2 through the threaded holes; the lower nut 33 is provided with 3 threaded holes and is fixedly connected with the vehicle body 1 through the threaded holes. The lower nut 33 is provided with an extension which is embedded in the vehicle body 1. The rear side of the track 2 is provided with a baffle 21, and the front side of the track 2 is provided with an alignment connecting section 22. The front end of the bottom of the vehicle body 1 is provided with a steering wheel 12, and the rear end of the bottom of the vehicle body 1 is provided with a directional wheel 11.
Stop device includes the counterpoint axle 6 of being connected with the front end rotation of automobile body 1, and the front end of counterpoint axle 6 is eccentric to be equipped with cylinder stopper 61, and the rear end of counterpoint axle 6 is connected with positioning handle 62, and automobile body 1 is located the top and the below of counterpoint axle 6 and is equipped with draw-in groove 13, and draw-in groove 13 is used for chucking positioning handle 62.
The current transformer 7 can be assembled outside the cabinet, and the assembled modularized draw-out type current transformer handcart is pushed into the slide rail 4 in the switch cabinet through a service transfer trolley used in a matched mode and then is connected with the busbar in the switch cabinet. When in maintenance, only the bolt connected with the modularized extraction type current transformer handcart needs to be removed, then the bolt is extracted to the service transfer trolley used in a matching way, and then the service transfer trolley used in the matching way is transferred to the safety channel for maintenance.
Because current transformer needs regular dismantlement to overhaul, its screw thread often takes place the friction, and embedded nut 75's effect is the screw thread intensity that strengthens current transformer, prolongs current transformer's life.
Referring to fig. 5, the adjusting nut 32 is rotated clockwise or counterclockwise, the relative position between the adjusting nut 32 and the upper nut 31 can be changed, so that the relative distance between the rail 2 and the car body 1 is changed, so that the output height is adjusted, on one hand, the adjusting nut is used for aligning the rail 2 to the slide rail 4 in the switch cabinet, so that the mutual inductor is convenient to transport, on the other hand, the adjusting nut is used for adjusting the front and rear heights, a certain angle is set, so that the mutual inductor has a sliding trend, including a forward sliding trend and a backward sliding trend, when the adjusting nut is set to the backward sliding trend, the mutual inductor is prevented from slipping from the front end due to bumping in the transportation process, when the adjusting nut is set to the forward sliding trend, artificial thrust is reduced, so that the mutual inductor can slide into the switch cabinet by using the dead weight, and the operation is convenient. The purpose of the limiting device is to connect the car body 1 and the switch cabinet, limit the running car and avoid the mutual inductor from falling in the sliding process.
The purpose of the annular handle is to increase the torque of the adjusting nut 32, making the output height adjustment more labour-saving. The extending section of the lower nut 33 is embedded in the vehicle body 1, so that the transverse bearing capacity of the height adjusting mechanism 3 is enhanced, and the structural strength is improved. The counterpoint linkage segment 22 is used for being lapped on the slide rail 4 in the switch cabinet and guiding the moving direction of the mutual inductor, so that the mutual inductor can move more accurately and smoothly.
Referring to fig. 6 and 7, the below that the cubical switchboard corresponds slide rail 4 is equipped with counterpoint hole 5, positioning handle 62 card is put at the below draw-in groove 13 of automobile body 1 during initial condition, cylinder stopper 61 can insert in counterpoint hole 5 this moment, after automobile body 1 accomplishes counterpoint, put handle 62 card at the top draw-in groove 13 of automobile body 1, make the rotatory skew in position of cylinder stopper 61, make a part card of cylinder stopper 61 put at counterpoint hole 5 terminal surfaces, accomplish the spacing of stop device to the operation car, avoid the mutual-inductor to take place at the condition that slides in-process and drop.
Claims (7)
1. A modular drawing type mutual inductor for a switch cabinet is characterized by comprising a current mutual inductor (7), wherein an insulating cover (71) is fixedly connected with the current mutual inductor (7), a trolley frame (72) is arranged on the current mutual inductor (7), a plurality of pulleys (73) are arranged at the bottom of the trolley frame (72), the pulleys (73) are connected onto a sliding rail (4) in a sliding mode, the sliding rail (4) is arranged in the switch cabinet, a service transfer trolley used in a matched mode is further arranged on the current mutual inductor (7), the trolley frame (72) is further connected with a handle (74), the current mutual inductor (7) is provided with a threaded hole, the threaded hole is used for being in threaded connection with the switch cabinet, the switch cabinet is provided with a fixed operation window (76), the fixed operation window (76) is used for connecting and fixing the current mutual inductor (7) and the switch cabinet together in a threaded mode, the service transfer trolley comprises a trolley body (1), a rail (2) used for transferring the mutual inductor is arranged on the trolley body (1), the rail (2) is connected with the trolley body (1) through a plurality of height adjusting mechanisms (3), the height adjusting mechanisms (3) comprise an upper nut (31) and a lower nut (33) which are sequentially connected onto a bolt (34), the lower nut (33) is fixed on the vehicle body (1), the front end of the vehicle body (1) is connected with a limiting device, and the limiting device is used for connecting the vehicle body (1) and the switch cabinet; stop device includes rotates counterpoint axle (6) of being connected with the front end of automobile body (1), the front end off-centre of counterpoint axle (6) is equipped with cylinder stopper (61), the rear end of counterpoint axle (6) is connected with positioning handle (62), the top and the below that automobile body (1) is located counterpoint axle (6) are equipped with draw-in groove (13), draw-in groove (13) are used for chucking positioning handle (62).
2. The modular drawing transformer for switchgear cabinets, according to claim 1, characterized in that said threaded holes are threaded holes with embedded nuts (75).
3. The modular transformer according to claim 1, characterized in that the adjusting nut (32) is provided with a ring-shaped handle on the outside.
4. The modular drawing transformer for the switch cabinet as claimed in claim 1, wherein the upper nut (31) is provided with a plurality of threaded holes through which it is fixedly connected with the rail (2); the lower nut (33) is provided with a plurality of threaded holes and is fixedly connected with the vehicle body (1) through the threaded holes.
5. The modular transformer according to claim 1, characterized in that the lower nut (33) is provided with an extension embedded in the body (1).
6. The modular transformer according to claim 1, characterized in that the rail (2) is provided with a baffle (21) at the rear side and an alignment connection section (22) at the front side of the rail (2).
7. The modular drawing transformer for the switch cabinet as claimed in claim 1, wherein the front end of the bottom of the vehicle body (1) is provided with a steering wheel (12), and the rear end of the bottom of the vehicle body (1) is provided with a directional wheel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110241414.3A CN113013770B (en) | 2021-03-04 | 2021-03-04 | Modular drawing type mutual inductor for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110241414.3A CN113013770B (en) | 2021-03-04 | 2021-03-04 | Modular drawing type mutual inductor for switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113013770A CN113013770A (en) | 2021-06-22 |
| CN113013770B true CN113013770B (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110241414.3A Active CN113013770B (en) | 2021-03-04 | 2021-03-04 | Modular drawing type mutual inductor for switch cabinet |
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| CN (1) | CN113013770B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114664517B (en) * | 2022-04-11 | 2024-03-26 | 无锡市锡容电力电器有限公司 | Current transformer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6717076B2 (en) * | 2001-12-21 | 2004-04-06 | Square D Company | Integrated medium voltage motor control center |
| CN203406540U (en) * | 2013-08-29 | 2014-01-22 | 常熟开关制造有限公司(原常熟开关厂） | Centrally installed switchgear transport vehicle |
| CN209786611U (en) * | 2019-01-14 | 2019-12-13 | 广东北江开关厂有限公司 | Metering handcart of high-voltage switch cabinet |
| CN109768485A (en) * | 2019-01-18 | 2019-05-17 | 王赟 | A kind of new and effective constant temperature electrical control cabinet |
| CN212011900U (en) * | 2019-12-30 | 2020-11-24 | 盛道（中国）电气有限公司 | A novel lower voltage transformer transfer car (buggy) for cubical switchboard |
| CN212485958U (en) * | 2020-08-04 | 2021-02-05 | 广东北江开关厂有限公司 | Combined high-voltage trolley cabinet |
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- 2021-03-04 CN CN202110241414.3A patent/CN113013770B/en active Active
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| CN113013770A (en) | 2021-06-22 |
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