CN212161618U - Quick gear-shifting on-load tap-changer - Google Patents
Quick gear-shifting on-load tap-changer Download PDFInfo
- Publication number
- CN212161618U CN212161618U CN202021297167.6U CN202021297167U CN212161618U CN 212161618 U CN212161618 U CN 212161618U CN 202021297167 U CN202021297167 U CN 202021297167U CN 212161618 U CN212161618 U CN 212161618U
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- load tap
- changer
- shifting
- fixedly connected
- fast
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Abstract
The utility model discloses a quick gear shifting has tap changer, including having the tap changer body, the top that has the tap changer body is provided with actuating mechanism. This quick gear shifting on-load tap-changer, when needs overhaul on-load tap-changer this internal electrical contact, accessible pulling push-and-pull piece drives the protective baffle and rises to be located the mounting groove, and make two magnet pieces inhale the back mutually, can overhaul the inside electrical contact through the access hole, make the maintenance convenient, when simple maintenance, need not dismantle it, make the simplification that maintenance work becomes, after the maintenance finishes, make two magnet piece separation, protective baffle falls down two fixture blocks and inserts in two draw-in grooves, protective baffle shelters from the access hole protection this moment, cooperate under the spacing condition of fixture block and draw-in groove simultaneously, do not influence the normal use of electrical contact and on-load tap-changer body, the practicality of device has been improved.
Description
Technical Field
The utility model belongs to the technical field of on-load tap-changer, concretely relates to quick gear shifting has on-load tap-changer.
Background
When the transformer is subjected to field handover or routine test, the test items are as follows: testing the transformation ratio, the direct current resistance or the transition resistance of the on-load tap-changer, wherein the testing is carried out by switching gears; generally, a mechanism motor of the on-load tap-changer is powered on, and direct electric up-shifting and down-shifting switching is only needed. An on-load tap changer generally comprises a switch body, a drive mechanism and a protection element.
However, in the case of power failure maintenance in a capital construction site or a total station, as the mechanism is not powered on, the gear shifting switching of the on-load tap-changer only depends on manual gear shifting, but the manual gear shifting is very troublesome and needs no several turns of shaking, and for the tests such as a transformation ratio test and a direct current resistance test which need to frequently adjust the transformation ratio, the manual gear shifting is time-consuming, labor-consuming and low in efficiency, errors exist in the gear shifting, inconvenience is brought to the gear shifting of the on-load tap-changer, meanwhile, an electric contact in the on-load tap-changer needs to be maintained after the action exceeds fifty thousand times.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick gear shifting has on-load tap-changer to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a quick-speed-shifting on-load tap-changer comprises an on-load tap-changer body, wherein a driving mechanism is arranged at the top of the on-load tap-changer body, a shifting shaft center rod is arranged inside the on-load tap-changer body, a first bevel gear is fixedly connected to the outer surface of the shifting shaft center rod, a fixed seat is fixedly connected inside the on-load tap-changer body, a sleeve is connected inside the fixed seat in a rotating manner, a second bevel gear is fixedly connected to the right end of the sleeve, the first bevel gear is meshed with the second bevel gear, a group of clamping pieces are connected inside the sleeve, an electric contact is arranged inside the on-load tap-changer body, an access hole is formed in the right side of the on-load tap-changer body, a mounting groove is formed in the top of the access hole, guide rails are fixedly connected to two sides inside of the mounting groove, two fixedly connected with guard flap between the sliding block, two fixture blocks of guard flap's lower fixed surface are connected with, two draw-in grooves have been seted up to the interior bottom of manhole.
Preferably, the inside of the fixing seat is fixedly connected with a limit bearing, and the sleeve is fixedly connected with an inner ring of the limit bearing.
Preferably, the left end of the sleeve penetrates and extends to the outside of the on-load tap-changer body.
Preferably, the electrical contact is located at the access hole.
Preferably, the protective baffle corresponds to the position of the access hole and is matched with the access hole in size.
Preferably, the upper surface of guard flap fixedly connected with first magnet piece, the interior top fixedly connected with second magnet piece of mounting groove, first magnet piece with the relative one side of second magnet piece is inhaled mutually.
Preferably, the outer side of the protective baffle is fixedly connected with a push-pull block, and the two clamping blocks respectively extend to the two inner parts of the clamping grooves.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) this quick gear shifting has on-load tap-changer, through setting up actuating mechanism, under the circular telegram normal condition, actuating mechanism drives gear shifting axle center pole and rotates and carry out the gear shifting, when having a power failure or unable power supply, can break off actuating mechanism and gear shifting axle center pole, it is fixed with the fastener in the sleeve to reuse the similar drive arrangement of electric drill, and then drive the sleeve and rotate, use under two bevel gear's cooperation this moment, drive gear shifting axle center pole and rotate, gear shifting operation, consequently, make under the condition of not having the power supply, can realize the gear shifting that has on-load tap-changer fast, simultaneously and the simple operation, reduce artificial labour, and gear shifting efficiency has been improved.
(2) This quick gear shifting on-load tap-changer, through setting up protective baffle, when needs overhaul on-load tap-changer this internal electrical contact, accessible pulling push-pull piece drives protective baffle and rises to be located the mounting groove, and make two magnet pieces inhale the back mutually, can overhaul the inside electrical contact through the manhole, make the maintenance convenient, when simple maintenance, need not dismantle it, make the simplification that maintenance work becomes, after the maintenance finishes, make two magnet piece separation, protective baffle falls down two fixture blocks and inserts in two draw-in grooves, protective baffle shelters from the manhole protection this moment, cooperate under the spacing condition of fixture block and draw-in groove simultaneously, do not influence the normal use of electrical contact and on-load tap-changer body, the practicality of device has been improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of the structure of fig. 1 at a;
FIG. 3 is a schematic sectional view of the present invention;
fig. 4 is an enlarged view of the structure of fig. 3B according to the present invention;
fig. 5 is a schematic side view of the protective baffle of the present invention.
In the figure: 1. an on-load tap-changer body; 2. a drive mechanism; 3. a shift spindle lever; 4. a first bevel gear; 5. a fixed seat; 6. a sleeve; 7. a second bevel gear; 8. a fastener; 9. an electrical contact; 10. an access hole; 11. mounting grooves; 12. a guide rail; 13. a slider; 14. a protective baffle; 15. a clamping block; 16. a card slot; 17. a limit bearing; 18. a first magnet block; 19. a second magnet block; 20. and (4) pushing and pulling the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution of a fast-speed-shifting on-load tap-changer: the on-load tap-changer comprises an on-load tap-changer body 1, a driving mechanism 2 is arranged at the top of the on-load tap-changer body 1, a shifting spindle rod 3 is arranged inside the on-load tap-changer body 1, a first bevel gear 4 is fixedly connected to the outer surface of the shifting spindle rod 3, a fixed seat 5 is fixedly connected inside the on-load tap-changer body 1, a sleeve 6 is connected inside the fixed seat 5 in a rotating manner, a second bevel gear 7 is fixedly connected to the right end of the sleeve 6, the first bevel gear 4 is meshed with the second bevel gear 7, a group of clamping pieces 8 are connected inside the sleeve 6, an electrical contact 9 is arranged inside the on-load tap-changer body 1, an access hole 10 is formed in the right side of the on-load tap-changer body 1, a mounting groove 11 is formed in the top of the access hole 10, guide rails, fixedly connected with guard flap 14 between two sliding blocks 13, two fixture blocks 15 of guard flap 14's lower fixed surface are connected with, and two draw-in grooves 16 have been seted up to the interior bottom of manhole 10.
In this embodiment, preferably, the inside of the fixing seat 5 is fixedly connected with the limit bearing 17, and the sleeve 6 is fixedly connected with the inner ring of the limit bearing 17, so that the stability of the sleeve 6 during rotation is improved.
In this embodiment, preferably, the left end of the sleeve 6 penetrates and extends to the outside of the on-load tap-changer body 1, so as to facilitate the clamping connection with an external electric drill-like driving device.
In this embodiment, it is preferable that the electrical contact 9 is located at the access hole 10, so that the electrical contact 9 can be easily accessed through the access hole 10.
In this embodiment, preferably, the protective baffle 14 corresponds to the position of the manhole 10, and has a size suitable for the position of the manhole 10, so as to improve the protective effect.
In this embodiment, preferably, the upper surface of the protective baffle 14 is fixedly connected with the first magnet block 18, the inner top of the mounting groove 11 is fixedly connected with the second magnet block 19, and one side of the first magnet block 18 opposite to the second magnet block 19 is attracted.
In this embodiment, preferably, the outer side of the protective baffle 14 is fixedly connected with a push-pull block 20, the two clamping blocks 15 respectively extend into the two clamping grooves 16, and the push-pull block 20 is arranged to facilitate moving the protective baffle 14.
The utility model discloses a theory of operation and use flow: the on-load tap-changer for fast gear shifting is characterized in that a driving mechanism 2 is arranged, the driving mechanism 2 drives a gear shifting shaft center rod 3 to rotate for gear shifting under the normal condition of electrification, when power failure occurs or power supply cannot be supplied, the driving mechanism 2 and the gear shifting shaft center rod 3 can be disconnected, a driving device similar to an electric drill is used for fixing a clamping piece 8 in a sleeve 6 so as to drive the sleeve 6 to rotate, the gear shifting shaft center rod 3 is driven to rotate under the matching use of two bevel gears for gear shifting operation, therefore, under the condition of no power supply, the gear shifting of the on-load tap-changer can be fast realized, meanwhile, the operation is convenient, the labor force is reduced, the gear shifting efficiency is improved, through arranging a protective baffle 14, when the electric contact 9 in the on-load tap-changer body 1 needs to be overhauled, the protective baffle 14 can be driven to ascend in a mounting groove 11 through pulling a push-pull block 20, and make two magnet pieces inhale the back mutually, can overhaul inside electrical contact 9 through access hole 10, make the maintenance convenient, when simple maintenance, need not dismantle it, make the simplification that maintenance work becomes, after the maintenance finishes, make two magnet piece separation, protective baffle 14 falls down two fixture blocks 15 and inserts in two draw-in grooves 16, protective baffle 14 shields the access hole 10 this moment and shelters from, cooperate under the spacing condition of fixture block 15 and draw-in groove 16 simultaneously, do not influence electrical contact 9 and the normal use of having the tapping switch body 1, the practicality of device has been improved.
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 (7)
1. A fast-speed-changing on-load tap-changer comprises an on-load tap-changer body (1), and is characterized in that: the on-load tap-changer is characterized in that a driving mechanism (2) is arranged at the top of the on-load tap-changer body (1), a shifting spindle rod (3) is arranged inside the on-load tap-changer body (1), a first bevel gear (4) is fixedly connected to the outer surface of the shifting spindle rod (3), a fixed seat (5) is fixedly connected to the inside of the on-load tap-changer body (1), a sleeve (6) is connected to the inside of the fixed seat (5) in a rotating manner, a second bevel gear (7) is fixedly connected to the right end of the sleeve (6), the first bevel gear (4) is meshed with the second bevel gear (7), a group of clamping pieces (8) is connected to the inside of the sleeve (6), an electrical contact (9) is arranged inside the on-load tap-changer body (1), an access hole (10) is formed in the right side of the on-load tap-changer body (1), and, the equal fixedly connected with guide rail (12) in inside both sides of mounting groove (11), two the equal sliding connection in inside of guide rail (12) has sliding block (13), two fixedly connected with guard flap (14) between sliding block (13), two fixture blocks (15) of the lower fixed surface of guard flap (14), two draw-in grooves (16) have been seted up to the interior bottom of manhole (10).
2. A fast-shifting on-load tap changer according to claim 1, characterized in that: the inner part of the fixed seat (5) is fixedly connected with a limiting bearing (17), and the sleeve (6) is fixedly connected with an inner ring of the limiting bearing (17).
3. A fast-shifting on-load tap changer according to claim 1, characterized in that: the left end of the sleeve (6) penetrates through and extends to the outside of the on-load tap-changer body (1).
4. A fast-shifting on-load tap changer according to claim 1, characterized in that: the electrical contact (9) is located at the manhole (10).
5. A fast-shifting on-load tap changer according to claim 1, characterized in that: the protective baffle (14) corresponds to the position of the access hole (10) and is matched with the access hole in size.
6. A fast-shifting on-load tap changer according to claim 1, characterized in that: the upper surface fixed connection of guard shield (14) has first magnet piece (18), the interior top fixed connection of mounting groove (11) has second magnet piece (19), first magnet piece (18) with the relative one side of second magnet piece (19) is inhaled mutually.
7. A fast-shifting on-load tap changer according to claim 1, characterized in that: the outer side of the protective baffle (14) is fixedly connected with a push-pull block (20), and the two clamping blocks (15) respectively extend into the two clamping grooves (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021297167.6U CN212161618U (en) | 2020-07-06 | 2020-07-06 | Quick gear-shifting on-load tap-changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021297167.6U CN212161618U (en) | 2020-07-06 | 2020-07-06 | Quick gear-shifting on-load tap-changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212161618U true CN212161618U (en) | 2020-12-15 |
Family
ID=73701352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021297167.6U Expired - Fee Related CN212161618U (en) | 2020-07-06 | 2020-07-06 | Quick gear-shifting on-load tap-changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212161618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112967897A (en) * | 2021-03-04 | 2021-06-15 | 国网山东省电力公司青州市供电公司 | Hand-held type on-load tap-changer gear shifting device |
-
2020
- 2020-07-06 CN CN202021297167.6U patent/CN212161618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112967897A (en) * | 2021-03-04 | 2021-06-15 | 国网山东省电力公司青州市供电公司 | Hand-held type on-load tap-changer gear shifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 Termination date: 20210706 |
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| CF01 | Termination of patent right due to non-payment of annual fee |