CN116525324B - 35KV dry type vacuum on-load tap switch - Google Patents
35KV dry type vacuum on-load tap switch Download PDFInfo
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- CN116525324B CN116525324B CN202310702767.8A CN202310702767A CN116525324B CN 116525324 B CN116525324 B CN 116525324B CN 202310702767 A CN202310702767 A CN 202310702767A CN 116525324 B CN116525324 B CN 116525324B
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- load tap
- support
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims description 23
- 238000010079 rubber tapping Methods 0.000 abstract description 17
- 230000008859 change Effects 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 12
- 230000009471 action Effects 0.000 description 8
- 239000011090 solid board Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0038—Tap change devices making use of vacuum switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/56—Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0044—Casings; Mountings; Disposition in transformer housing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a 35KV dry type vacuum on-load tap-changer, which comprises: the on-load tap changer main body comprises a tap selector and a change-over switch, wherein the change-over switch is arranged at the top of the tap selector, a supporting plate is arranged on the left side of the change-over switch, a guide groove is formed in the supporting plate, a sleeve plate is arranged on the left side of the supporting plate, a yielding groove is formed in the bottom of the sleeve plate in a penetrating mode, a ring plate is arranged on one side of the inner side of the guide groove in a penetrating mode, the ring plate is located on the inner side of the sleeve plate, and a protective cover is arranged at the bottom of the ring plate. This 35KV dry-type vacuum on-load tapping switch is through installing the fagging, and the staff can anticlockwise promote the annular plate and rotate with the change over switch as the centre of a circle after the operation is accomplished, makes the annular plate drive the protection casing and passes the guide slot under the effect of external force and remove to make the annular plate insert the inboard of cover board, and the protection casing can together remove and remove the inboard of the groove of stepping down under the support of annular plate simultaneously, makes the protection casing provide dustproof protection for tapping selector through the annular plate under the support of cover board.
Description
Technical Field
The invention relates to the technical field of dry vacuum on-load tap-changers, in particular to a 35KV dry vacuum on-load tap-changer.
Background
The dry vacuum on-load tap-changer is one of the devices indispensable in the 35KV on-load tap-changer, which can be connected to a corresponding circuit and performs on-load tap-change under the operation of a worker.
The invention discloses an installation auxiliary mechanism of a dry type vacuum on-load tap-changer, which comprises a main body of the dry type vacuum on-load tap-changer, a filter screen plate sleeved on the main body and a support assembly installed on the main body, wherein the filter screen plate is positioned at the position of a tap selector of the main body, the support assembly comprises a ring plate and a plurality of support plate groups uniformly distributed below the ring plate, the ring plate is sleeved on the main body, and the lower end of the support plate group is installed on a transformer. The above publication mainly discloses how to easily shake and even topple over in windy weather. However, the dry vacuum on-load tap changers described above are typically exposed to the outside of the tap selector and do not facilitate providing dust protection for the tap selector.
Therefore, there is a need for a 35KV dry vacuum on-load tap changer that at least partially addresses the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a 35KV dry vacuum on-load tap-changer, comprising: the on-load tap changer comprises an on-load tap changer main body, the on-load tap changer main body comprises a tap selector and a change-over switch, the change-over switch is arranged at the top of the tap selector, a supporting plate is arranged on the left side of the change-over switch, a guide groove is formed in the supporting plate, a sleeve plate is arranged on the left side of the supporting plate, a yielding groove is formed in the bottom of the sleeve plate in a penetrating mode, a ring plate is arranged on one side of the inner side of the guide groove in a penetrating mode, the ring plate is located on the inner side of the sleeve plate, a protective cover is arranged on the bottom of the ring plate in a penetrating mode, the yielding groove is formed in the bottom of the supporting plate in a penetrating mode, and a protective sleeve is arranged on the bottom of the supporting plate.
According to the 35KV dry-type vacuum on-load tap changer provided by the embodiment of the invention, the change-over switch is provided with the insulating cylinder assembly, the insulating cylinder assembly comprises a first insulating cylinder body, a second insulating cylinder body and a plurality of internal support modules, the first insulating cylinder body is arranged in the second insulating cylinder body, the internal support modules are uniformly distributed between the first insulating cylinder body and the second insulating cylinder body, the internal support modules comprise a plurality of C-shaped transverse flitch plates, the C-shaped transverse flitch plates are sequentially arranged on the inner wall of the second insulating cylinder body from top to bottom, the inner wall of the end part of each C-shaped transverse flitch plate is connected with the first insulating cylinder body through a transverse internal spring, and an intermediate internal support piece is arranged between two upper and lower adjacent transverse internal springs.
According to the 35KV dry-type vacuum on-load tap changer provided by the embodiment of the invention, the middle inner support piece comprises a middle vertical rod, a bearing piece and a plurality of C-shaped bearing bodies, the middle vertical rod is connected between the upper adjacent transverse inner springs and the lower adjacent transverse inner springs, the bearing piece comprises an inner shaft sleeve, an outer shaft sleeve and a plurality of inner roller bodies, the inner shaft sleeve is sleeved on the middle vertical rod, the outer shaft sleeve is rotatably sleeved on the inner shaft sleeve through the plurality of inner roller bodies, the plurality of C-shaped bearing bodies are movably arranged on the outer shaft sleeve, and an auxiliary framework part is arranged in the C-shaped bearing bodies.
According to the 35KV dry-type vacuum on-load tap changer provided by the embodiment of the invention, the C-shaped supporting body comprises a C-shaped outer contact plate, two inclined plates and a vertical corner block, wherein the upper end and the lower end of the vertical corner block are respectively connected to an outer shaft sleeve through a hinge seat, the two inclined plates are arranged on two sides of the vertical corner block, the C-shaped outer contact plate is arranged between the two inclined plates, and a plurality of auxiliary supports are arranged between the inclined plates and the outer shaft sleeve.
According to the 35KV dry-type vacuum on-load tap changer, the auxiliary support comprises a corner plate seat, a first spring seat, a first auxiliary spring and a second spring seat, wherein the corner plate seat is arranged on the outer shaft sleeve and is positioned between the inclined plate and the outer shaft sleeve, the first spring seat is arranged on the corner plate seat, the second spring seat is arranged on the inclined plate, the first auxiliary spring is arranged between the first spring seat and the second spring seat, the plurality of second spring seats are connected through a C-shaped inner contact plate, and the C-shaped inner contact plate abuts against the inner wall of the C-shaped outer contact plate.
According to the 35KV dry-type vacuum on-load tap changer provided by the embodiment of the invention, the auxiliary framework part comprises a framework block, a transverse framework supporting rod, a second auxiliary spring and an inner contact supporting block, wherein the framework block is arranged on the outer wall of the vertical corner block, the transverse framework supporting rod is arranged on the framework block, the second auxiliary spring is arranged at the outer end of the transverse framework supporting rod, and the inner contact supporting block is arranged at the outer end of the second auxiliary spring and supports against the inner wall of the C-shaped inner contact plate.
According to the 35KV dry-type vacuum on-load tap changer provided by the embodiment of the invention, the bottom of the tap selector is provided with a chassis, one side of the supporting plate is provided with a supporting plate, and the bottom of the supporting plate is provided with a side plate.
According to the 35KV dry-type vacuum on-load tap changer provided by the embodiment of the invention, three fixing plates are arranged at the bottoms of the side plates, and fixing holes are formed in the fixing plates.
According to the 35KV dry-type vacuum on-load tap changer provided by the embodiment of the invention, two cloth strips are arranged on the left side of the support plate, the cloth strips are positioned on the top of the side plate, and elastic bands are arranged in the cloth strips.
According to the 35KV dry-type vacuum on-load tap changer provided by the embodiment of the invention, one end of the cloth strip is provided with a support block, and one end of the support block is provided with a clamping ring.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the invention provides a 35KV dry-type vacuum on-load tapping switch, which is provided with a supporting plate, wherein the supporting plate can provide an opening space for a guide groove, the guide groove can provide a moving guide and a penetrating channel for a ring plate, a worker can pull the ring plate according to the actual situation, the ring plate can rotate clockwise by taking a change-over switch as a circle center under the action of external force and the support of the supporting plate, one end of the ring plate, which is positioned at the inner side of the guide groove, penetrates through the guide groove to be inserted into the inner side of a sleeve plate, and meanwhile, a protective cover can deform under the resisting action of the supporting plate and move along with the ring plate, so that the protective cover can be folded up to expose a tapping selector for the worker to operate.
2. The invention provides a 35KV dry-type vacuum on-load tapping switch, which is characterized in that a supporting plate is arranged on the 35KV dry-type vacuum on-load tapping switch, the supporting plate can firmly support the supporting plate, a worker can move a change-over switch according to the requirement of actual conditions, the change-over switch can drive a fixed plate to move to a proper position through the supporting plate, the fixed plate is attached to an upright plane at a working place, then the fixed plate is firmly installed on the upright plane at the working place by penetrating a fixed part through a fixed hole, or the worker can pull one ends of two cloth strips under the support of the supporting plate according to the requirement of actual conditions, the cloth strips can stretch an elastic band under the action of external force according to the requirement of actual conditions, the cloth strips are wrapped outside a cylindrical object at the working place, then the worker needs to drive a supporting block to move under the action of external force, the two clamping rings are stacked together, the two clamping rings can be mutually buckled under the support of the supporting block, then the two clamping rings can be mutually connected by using a fixed part, and the two clamping rings can be mutually connected to the two clamping rings at the outer sides of the two cloth strips through the elastic band according to the requirement of actual conditions, and the two clamping rings can be conveniently installed at the outer sides of the working place.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a cloth strip according to the present invention.
Fig. 3 is a schematic structural diagram of a switch according to the present invention.
Fig. 4 is a schematic structural view of a sleeve plate according to the present invention.
Fig. 5 is a schematic structural view of a stay plate according to the present invention.
FIG. 6 is a schematic view of the structure of the ring plate according to the present invention.
FIG. 7 is a schematic view of an outer sleeve assembly according to the present invention.
Fig. 8 is a schematic view of a part of the internal support module in the present invention.
Fig. 9 is a schematic structural view of the intermediate inner stay according to the present invention.
Fig. 10 is a schematic view of a part of the structure of the bearing member of the present invention.
Fig. 11 is a schematic structural view of a C-shaped carrier according to the present invention.
Fig. 12 is a schematic view of a part of the structure of the auxiliary support in the present invention.
Fig. 13 is a schematic structural view of an auxiliary skeleton portion in the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-6, the present invention provides a 35KV dry vacuum on-load tap-changer, comprising: the on-load tap changer main body 100, the on-load tap changer main body 100 includes tapping selector 1, change over switch 2, the top at tapping selector 1 is installed to change over switch 2, wherein, fagging 4 is installed in the left side of change over switch 2, guide slot 5 has been seted up in the inside run-through of fagging 4, sleeve plate 6 is installed in the left side of fagging 4, the bottom of sleeve plate 6 runs through and has been seted up the groove 7 of stepping down, ring plate 8 is installed to one side is run through to the inboard of guide slot 5, ring plate 8 is located the inboard of sleeve plate 6, protection casing 9 is installed to the bottom of ring plate 8, protection casing 9 runs through the groove 7 of stepping down, lag 10 is installed to the bottom of fagging 4.
The fagging 4 of foretell can provide firm support for the sleeve plate 6 under the support of tapping selector 1, sleeve plate 6 can provide space and direction supporting role for annular plate 8, and fagging 4 can provide space for guide slot 5, guide slot 5 can provide removal guiding role and through channel for annular plate 8, and annular plate 8 can provide support for protection casing 9, protection casing 9 can buckle wantonly under the effect of external force and warp, the groove 7 of stepping down can provide through channel and space for protection casing 9, lag 10 and protection casing 9 cooperation can cover tapping selector 1, provide dustproof protection for tapping selector 1, the staff can be according to actual conditions's needs pulling annular plate 8, make annular plate 8 under the effect of external force and under the support of fagging 4 use change over switch 2 as centre of a circle clockwise rotation, make annular plate 8 be located the inboard one end of guide slot 5 and insert the inboard of annular plate 6, protection casing 9 can warp and follow annular plate 8 together and move under the effect of stepping down of fagging 4 simultaneously, make protection casing 9 can be folded up and expose selector 1 and provide through passageway and remove the protection casing 9 cooperation with protection casing 9 can be for the protection casing 8 is carried out the effect of the inner side under the effect of supporting plate 8 of taking the change over switch 2 as centre of a circle, can make annular plate 8 to rotate under the effect of external force and the support of fagging 4, can make annular plate 8 move the annular plate 8 under the effect of the support of annular plate 8 and the effect of change over 8 can be for the centre of circle 5, can be moved under the effect of the inner side 8 under the effect of the support of change over 8, and can be moved under the effect of the action of the face plate 8 under the action of the need of change over 2.
Further, the chassis 3 is installed at the bottom of the tapping selector 1, the chassis 3 can provide stable support for the tapping selector 1, the tapping selector 1 can stably support the change-over switch 2, and a worker can connect corresponding lines with the change-over switch 2 and the tapping selector 1 according to the actual situation, so that the worker can operate the change-over switch 2 to control the tapping selector 1 to perform power tapping work according to the actual situation.
Further, a support plate 11 is installed at one side of the support plate 4, a side plate 12 is installed at the bottom of the support plate 11, and three fixing plates 13 are installed at the bottom of the side plate 12. Here through installing extension board 11 in one side of extension board 4, curb plate 12 is installed to the bottom of extension board 11, and three solid board 13 is installed to the bottom of curb plate 12, and foretell extension board 4 can firmly support extension board 11 under the support of change over switch 2, and extension board 11 can firmly support curb plate 12, and curb plate 12 can provide firm support for solid board 13, and the staff can remove change over switch 2 according to actual conditions's needs, makes change over switch 2 drive solid board 13 through extension board 4, extension board 11 and curb plate 12 and remove suitable position department, and solid board 13 is laminated with the plane of standing of job site department.
Further, a fixing hole 14 is formed in the fixing plate 13 in a penetrating manner, two cloth strips 15 are arranged on the left side of the support plate 11, the cloth strips 15 are located at the top of the side plate 12, elastic bands 16 are arranged in the cloth strips 15 in a penetrating manner, a support block 17 is arranged at one end of each cloth strip 15, and a clamping ring 18 is arranged at one end of each support block 17.
Through the design of the structure, after the fixing plate 13 is attached to the vertical plane at the working place, a worker can penetrate through the fixing holes 14 by using the fixing component to firmly install the fixing plate 13 on the vertical plane at the working place, or the worker can pull one ends of the two cloth strips 15 under the support of the support plate 11 according to the actual situation, the cloth strips 15 stretch the elastic band 16 according to the actual situation under the action of external force, the cloth strips 15 are wrapped around the outer side of a cylindrical object at the working place, then the worker needs to drive the support block 17 to move through one end of the cloth strips 15, the support block 17 drives the clamp rings 18 to move under the action of external force, the two clamp rings 18 are stacked and placed together, the two clamp rings 18 can be mutually buckled under the support of the support block 17, then the worker can mutually connect the two clamp rings 18 by using the fixing component, the two clamp rings 18 mutually connect one ends of the two cloth strips 15 through the support block 17, the two cloth strips 15 and the elastic band 16 can be held at the working place under the support of the support plate 11, and the device can be installed at the outer side of the working place flexibly.
Further, in order to increase the safety of the switch 2, the switch 2 is defined herein, wherein the switch 2 has an insulating cylinder assembly 21, the insulating cylinder assembly 21 is designed by adopting a double-layer cylinder structure of a first insulating cylinder 22 and a second insulating cylinder 23, the capacity of bearing internal pressure can be greatly increased, and a plurality of internal bracing modules 24 are further installed between the first insulating cylinder 22 and the second insulating cylinder 23, and the capacity of bearing pressure of the first insulating cylinder 22 and the second insulating cylinder 23 is further increased through the plurality of internal bracing modules 24, so that the switch 2 can bear external impact, such as shock, collision and the like in the process of carrying.
Through the above-mentioned structural design, the insulating cylinder assembly 21 herein includes a first insulating cylinder 22, a second insulating cylinder 23, and a plurality of internal support modules 24, specifically, the first insulating cylinder 22 is installed in the second insulating cylinder 23, and the first insulating cylinder 22 and the second insulating cylinder 23 serve as main bearing pressure components to provide protection functions for internal components;
as shown in fig. 7-13, a plurality of internal bracing modules 24 are uniformly distributed between the first insulating cylinder 22 and the second insulating cylinder 23, the internal bracing modules 24 comprise a plurality of C-shaped transverse flitch plates 241, wherein the plurality of C-shaped transverse flitch plates 241 are sequentially installed on the inner wall of the second insulating cylinder 23 from top to bottom, the inner wall of the end part of the C-shaped transverse flitch plates 241 is connected with the first insulating cylinder 22 through transverse internal springs 242, the C-shaped transverse flitch plates 241 provide installation positions for other components, and two transverse internal springs 242 transversely support between the first insulating cylinder 22 and the second insulating cylinder 23, so that the bearing pressure capacity of the first insulating cylinder 22 and the second insulating cylinder 23 is increased.
Further, an intermediate inner support member 25 is further installed between the two vertically adjacent lateral inner springs 242, wherein the first insulating cylinder 22 and the second insulating cylinder 23 are further reinforced by the intermediate inner support member 25, and the intermediate inner support member 25 has a high bearing capacity, so that an internal elastic support can be provided for the first insulating cylinder 22 and the second insulating cylinder 23 for a long period of time to improve the bearing pressure of the first insulating cylinder 22 and the second insulating cylinder 23.
Further, in order to achieve the above-mentioned function of the intermediate inner support member 25, the intermediate inner support member 25 herein includes an intermediate vertical rod 26, a bearing member 27, and a plurality of C-shaped supporting bodies 28, wherein the intermediate vertical rod 26 is installed and connected between upper and lower adjacent lateral inner springs 242, the bearing member 27 is installed on the intermediate vertical rod 26, the plurality of C-shaped supporting bodies 28 are uniformly arranged on the bearing member 27, and the diameter of the intermediate inner support member 25 is equal to the distance between the first insulating cylinder 22 and the second insulating cylinder 23.
Through the above structural design, the corresponding C-shaped bearing bodies 28 of the bearing members 27 are respectively contacted with the outer wall of the first insulating cylinder 22 and the inner wall of the second insulating cylinder 23, so that when the second insulating cylinder 23 is subjected to pressure and is transferred to the middle internal supporting member 25, the internal C-shaped bearing bodies 28 can support the first insulating cylinder 22 and the second insulating cylinder 23 to offset the pressure, and any C-shaped bearing bodies 28 can provide the above functions because the bearing members 27 can rotate.
The bearing member 27 includes an inner sleeve 271, an outer sleeve 272, and a plurality of inner rollers (not shown), wherein the inner sleeve 271 is sleeved on the middle vertical rod 26, and the outer sleeve 272 is rotatably sleeved on the inner sleeve 271 through a plurality of inner rollers, and the inner rollers have a certain length, so that the outer sleeve 272 can rotate on the inner sleeve 271 more smoothly.
Further, the plurality of C-shaped bearing bodies 28 are movably disposed on the outer sleeve 272, where the C-shaped bearing bodies 28 include a C-shaped outer contact plate 281, two inclined plates 282 and a vertical corner block 283, specifically, the upper and lower ends of the vertical corner block 283 are respectively connected to the outer wall of the outer sleeve 272 through a hinge seat 274, the two inclined plates 282 are mounted on two sides of the vertical corner block 283, the C-shaped outer contact plate 281 is mounted between the two inclined plates 282, the C-shaped outer contact plate 281 can contact with the outer wall of the first insulating cylinder 22 or contact with the inner wall of the second insulating cylinder 23, so that when the C-shaped bearing bodies 28 are stressed, the C-shaped outer contact plate 281 deforms inwards to push the two inclined plates 282, the auxiliary skeleton portion 29 is disposed in the C-shaped bearing bodies 28, so that the auxiliary skeleton portion 29 can receive the pressure of the C-shaped outer contact plate 281, and the auxiliary skeleton portion 29 can reversely support the C-shaped outer contact plate 281 to counteract the pressure generated by the impact, and meanwhile, the C-shaped outer sleeve 272 can drive the plurality of C-shaped bearing bodies 28 to rotate, so that the plurality of C-shaped bearing bodies 28 can be greatly counteracted.
In addition, the C-shaped carrier 28 may swing left and right after being stressed, so a plurality of auxiliary supports 30 are further installed at two sides of the C-shaped carrier 28, specifically, the plurality of auxiliary supports 30 are respectively installed between the inclined plate 282 and the outer sleeve 272, and the two sides of the C-shaped carrier 28 are balanced and supported by the plurality of auxiliary supports 30, so that the C-shaped carrier 28 can be better stopped at the original position after the impact is finished, so that the subsequent continuous operation is facilitated.
As shown in fig. 11-12, further, in order to realize the balanced support of the auxiliary support 30 on the C-shaped carrier 28, the auxiliary support 30 includes a corner plate seat 301, a first spring seat 302, a first auxiliary spring 303, and a second spring seat 304, where the corner plate seat 301 is mounted on the outer sleeve 272 and is located between the inclined plate 282 and the outer sleeve 272, the corner plate seat 301 is mounted with the first spring seat 302, and the second spring seat 304 is mounted on the inclined plate 282, where two sides of the second spring seat 304 are respectively mounted with an outer locking plate pad 306 and an inner locking pad 307, so that the second spring seat 304 can be fixed on the inclined plate 282, and the above-mentioned first auxiliary spring 303 is mounted between the first spring seat 302 and the second spring seat 304, so that when the C-shaped carrier 28 swings left and right, the inclined plate 282 extrudes the corresponding first auxiliary spring 303, and then the corresponding first auxiliary spring 303 is forced to push the inclined plate 282 to the opposite direction, so that the C-shaped carrier 28 can be better stopped in place, so as to facilitate the subsequent work.
Further, in order to make the auxiliary supports 30 on both sides participate in the dispersion support of the impact, the C-shaped inner contact plate 305 is installed on the inner side of the C-shaped outer contact plate 281, and the plurality of second spring seats 304 are connected by the C-shaped inner contact plate 305, further, a fixed inner groove 308 is opened on the inner end of the second spring seat 304, and the end of the C-shaped inner contact plate 305 is provided with a bending piece 309, the bending piece 309 is inserted and fixed into the fixed inner groove 308, and the C-shaped inner contact plate 305 and the second spring seat 304 can be firmly fixed, so that the C-shaped inner contact plate 305 abuts against the inner wall of the C-shaped outer contact plate 281, thus realizing the dispersion support of the impact by the auxiliary supports 30 on both sides, and increasing the impact bearing capability of the C-shaped outer contact plate 281.
As shown in fig. 13, further, the auxiliary skeleton portion 29 includes a skeleton block 291, a transverse skeleton stay 292, a second auxiliary spring 293, and an inner contact abutment 294, where the skeleton block 291 is mounted on an outer wall of the vertical corner block 283, the transverse skeleton stay 292 is mounted on the skeleton block 291, the second auxiliary spring 293 is mounted at an outer end of the transverse skeleton stay 292, the inner contact abutment 294 is mounted at an outer end of the second auxiliary spring 293 and abuts against an inner wall of the C-shaped inner contact plate 305, so when the C-shaped inner contact plate 305 is subjected to inward deformation by pressure transmission of the C-shaped outer contact plate 281, the C-shaped inner contact plate 305 generates pressure on the second auxiliary spring 293 through the inner contact abutment 294, so that the second auxiliary spring 293 generates elastic force after being stressed, and of course, the second auxiliary spring 293 can be selected as a compression spring, so that the second auxiliary spring 293 can provide elastic force support for the C-shaped inner contact plate 305 before being stressed, and actively counteracts an impact, and the structure such as the transverse skeleton stay 292, the skeleton stay 293, the skeleton block 293 and the like are fixed on the outer support plate are subjected to inward deformation by the second auxiliary spring 293, so that the second auxiliary spring 293 can counteract an appropriate length of the impact force by screwing the second auxiliary spring 292, and the second auxiliary spring 293 is subjected to reverse deformation by the auxiliary spring 292.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (7)
1. A 35KV dry vacuum on-load tap-changer, comprising: the on-load tap changer comprises an on-load tap changer main body (100), the on-load tap changer main body (100) comprises a tap selector (1) and a change-over switch (2), the change-over switch (2) is arranged at the top of the tap selector (1), a supporting plate (4) is arranged on the left side of the change-over switch (2), a guide groove (5) is formed in the supporting plate (4), a sleeve plate (6) is arranged on the left side of the supporting plate (4), a yielding groove (7) is formed in the bottom of the sleeve plate (6) in a penetrating mode, a ring plate (8) is arranged on one side of the inner side of the guide groove (5) in a penetrating mode, a protective cover (9) is arranged on the bottom of the ring plate (8) and penetrates through the yielding groove (7), and a protective sleeve (10) is arranged on the bottom of the supporting plate (4).
The change-over switch (2) is provided with an insulating cylinder assembly (21), the insulating cylinder assembly (21) comprises a first insulating cylinder body (22), a second insulating cylinder body (23) and a plurality of internal support modules (24), the first insulating cylinder body (22) is arranged in the second insulating cylinder body (23), the internal support modules (24) are uniformly distributed between the first insulating cylinder body (22) and the second insulating cylinder body (23), the internal support modules (24) comprise a plurality of C-shaped transverse flitch plates (241), the C-shaped transverse flitch plates (241) are sequentially arranged on the inner wall of the second insulating cylinder body (23) from top to bottom, the inner wall of the end part of each C-shaped transverse flitch plate (241) is connected with the first insulating cylinder body (22) through a transverse internal spring (242), and an intermediate internal support (25) is arranged between two upper and lower adjacent transverse internal springs (242).
The middle inner support piece (25) comprises a middle vertical rod (26), a bearing piece (27) and a plurality of C-shaped supporting bodies (28), the middle vertical rod (26) is connected between an upper adjacent transverse inner spring (242) and a lower adjacent transverse inner spring, the bearing piece (27) comprises an inner shaft sleeve (271), an outer shaft sleeve (272) and a plurality of inner roller bodies, the inner shaft sleeve (271) is sleeved on the middle vertical rod (26), the outer shaft sleeve (272) is rotationally sleeved on the inner shaft sleeve (271) through a plurality of inner roller bodies, a plurality of C-shaped supporting bodies (28) are movably arranged on the outer shaft sleeve (272), and an auxiliary framework part (29) is arranged in the C-shaped supporting bodies (28);
the C-shaped supporting body (28) comprises a C-shaped outer contact plate (281), two inclined plates (282) and a vertical corner block (283), wherein the upper end and the lower end of the vertical corner block (283) are respectively connected to an outer shaft sleeve (272) through a hinge seat (274), the two inclined plates (282) are arranged on two sides of the vertical corner block (283), the C-shaped outer contact plate (281) is arranged between the two inclined plates (282), and a plurality of auxiliary supports (30) are arranged between the inclined plates (282) and the outer shaft sleeve (272).
2. The 35KV dry vacuum on-load tap-changer according to claim 1, wherein the auxiliary support (30) comprises a corner plate seat (301), a first spring seat (302), a first auxiliary spring (303), and a second spring seat (304), the corner plate seat (301) is disposed on the outer sleeve (272) and between the inclined plate (282) and the outer sleeve (272), the first spring seat (302) is disposed on the corner plate seat (301), the second spring seat (304) is disposed on the inclined plate (282), the first auxiliary spring (303) is disposed between the first spring seat (302) and the second spring seat (304), and the plurality of second spring seats (304) are connected by a C-shaped inner contact plate (305), the C-shaped inner contact plate (305) abuts against an inner wall of the C-shaped outer contact plate (281).
3. The 35KV dry vacuum on-load tap changer according to claim 2, wherein the auxiliary skeleton portion (29) comprises a skeleton block (291), a transverse skeleton stay (292), a second auxiliary spring (293), and an inner contact abutment (294), the skeleton block (291) is disposed on an outer wall of the vertical corner block (283), the transverse skeleton stay (292) is disposed on the skeleton block (291), the second auxiliary spring (293) is disposed at an outer end of the transverse skeleton stay (292), and the inner contact abutment (294) is disposed at an outer end of the second auxiliary spring (293) and abuts against an inner wall of the C-type inner contact plate (305).
4. The 35KV dry-type vacuum on-load tap changer according to claim 1, wherein a chassis (3) is arranged at the bottom of the tap selector (1), a support plate (11) is arranged on one side of the support plate (4), and a side plate (12) is arranged at the bottom of the support plate (11).
5. The 35KV dry-type vacuum on-load tap changer according to claim 4, wherein three fixing plates (13) are arranged at the bottom of the side plate (12), and fixing holes (14) are formed in the fixing plates (13).
6. The 35KV dry-type vacuum on-load tap changer according to claim 4, wherein two cloth strips (15) are arranged on the left side of the support plate (11), the cloth strips (15) are positioned on the top of the side plates (12), and elastic bands (16) are arranged in the cloth strips (15).
7. The 35KV dry-type vacuum on-load tap changer according to claim 6, wherein one end of the cloth strip (15) is provided with a supporting block (17), and one end of the supporting block (17) is provided with a clamping ring (18).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310702767.8A CN116525324B (en) | 2023-06-14 | 2023-06-14 | 35KV dry type vacuum on-load tap switch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310702767.8A CN116525324B (en) | 2023-06-14 | 2023-06-14 | 35KV dry type vacuum on-load tap switch |
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| CN116525324A CN116525324A (en) | 2023-08-01 |
| CN116525324B true CN116525324B (en) | 2023-10-20 |
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|---|---|
| CN116525324A (en) | 2023-08-01 |
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