CN201060748Y - Mechanical position limiter for tapping switch electrically operated mechanism - Google Patents
Mechanical position limiter for tapping switch electrically operated mechanism Download PDFInfo
- Publication number
- CN201060748Y CN201060748Y CNU2007201118928U CN200720111892U CN201060748Y CN 201060748 Y CN201060748 Y CN 201060748Y CN U2007201118928 U CNU2007201118928 U CN U2007201118928U CN 200720111892 U CN200720111892 U CN 200720111892U CN 201060748 Y CN201060748 Y CN 201060748Y
- Authority
- CN
- China
- Prior art keywords
- push
- dead man
- push rod
- output shaft
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a mechanical limiting device for electric mechanism of tapping switch, comprising a gear transmission part, a poker part and a push rod insertion part connected into a whole. The utility model is characterized in that the gear transmission part comprises an indexing disc with an upper limit pin and a lower limit pin; the indexing disc is meshed with a plurality of pulling guide teeth which are coaxial with the helical gear I; the helical gear I is meshed with a helical gear II on an output shaft; the push rod insertion part comprises a push rod with a reset spring and a push tray as well as a limit concave wheel and a pressing board connected with a limit seat; the limit concave wheel is connected with the output shaft; the poker part comprises an upper limit pin and a lower limit pin on the indexing disc, a poker I and a push tray; the poker I, a poker II and the push tray are matched with each other. The utility model has the advantages that a safety protection measure is added on the electric mechanism in the prior art, namely dual protection is adopted for the electric mechanism, therefore, in case of failure of the electric mechanism in the prior art, the mechanical limiting device is activated immediately to clamp the output shaft for disabling the rotation of output shaft, thereby avoiding major accident in case the tapping switch exceeds limit position and improving safety and reliability.
Description
Technical field
The utility model relates to safety, the protective device in a kind of tapping switch electric; particularly when electric spacing the breaking down in the motor drive mechanism; can effectively stop the running of motor drive mechanism output shaft, avoid exceeding the maximum the position and cause the mechanical stop limiter of the tapping switch electric that major accident uses.
Background technology
Shunting switch is to change the Transformer Winding tap position; carry out by the output shaft operation by motor drive mechanism; be the reliable safety that in motor drive mechanism, all has been provided with; the position-limit mechanism of protective effect; but when motor drive mechanism is controlled when breaking down step by step; shunting switch is after the conversion of finishing a step voltage; still carry out the extreme end of the conversion of unidirectional step voltage up to shunting switch; if this moment, position-limit mechanism can't be controlled the running of output shaft; shunting switch will take place to exceed the maximum the position and causes major accident; but the position-limit mechanism in the existing motor drive mechanism mostly is electrical structure and adopts the electric component travel switch; because of electric component is subject to temperature; the operational environment influence; it is also unreliable to work, and easily breaks down; malfunctioning and do not have protective effect.
Patent No. CN200520046485.4 " on load tap changer electric control mechanism ", this controlling organization only improves the installation site of phase sequence switch, makes its structure compact more, is more convenient for installing, debugs, overhauls.
The patent No. CN200520091398.0 circular motor drive mechanism of shunting switch " power transmission and transformation with " has also only solved and has made that transformer conversion gear is many, gear is accurate, makes its assembling, easy to maintenance, reliability raising.
Summary of the invention
Technical problem to be solved in the utility model is: the mechanical stop limiter that a kind of tapping switch electric is provided; be installed in the motor drive mechanism; when electric spacing the breaking down of motor drive mechanism, can effectively stop the running of output shaft in the motor drive mechanism; the operation of avoiding electronic tap conversion to occur exceeding the maximum; motor drive mechanism is played double protection, make motor drive mechanism work safer, reliable.
The technical scheme in the invention for solving the above technical problem is: the mechanical stop limiter of tapping switch electric, comprise by the gear drive part, the integral body that dead man is stirred partly and the push rod insertion portion connects into is formed, described gear drive part is by on having, the index dial of limit inferior pin and helical gear one coaxial pulling out are led the tooth engagement, helical gear two engagements on helical gear one and the output shaft constitute, described push rod insertion portion is by having back-moving spring, the push rod of push-plate and spacing recessed wheel that is connected on the limit base, the pressing plate cooperation constitutes, and spacing recessed the wheel is fixed on the output shaft, described dead man is stirred part by on the index dial, limit inferior pin and dead man one, push-plate, dead man one, dead man two, the push-plate cooperation constitutes.
Compared with prior art; advantage of the present utility model is: increase by one safety precautions in original motor drive mechanism again; promptly motor drive mechanism is carried out duplicate protection; in case original electric position-limit mechanism breaks down; this mechanical stop limiter moves at once; by going up or limit inferior pin promotion dead man on the index dial; promote push-plate by dead man again; adjust nut; push rod makes push rod enter spacing recessed the wheel; blocking output shaft can not rotate it and stops; reexamine; fix a breakdown; thereby avoid taking place the shunting switch position that exceeds the maximum and cause major accident; therefore stopping means is a mechanical structure simultaneously, is not subjected to operational environment and Temperature Influence, can not break down easily; so make motor drive mechanism have double insurance perfectly safe, therefore use safer; reliably.
Description of drawings
Fig. 1, structural representation of the present utility model (being installed in the motor drive mechanism).
The A-A view of Fig. 2, Fig. 1.
The left view of Fig. 3, Fig. 1.
Fig. 4, the utility model push rod do not insert spacing recessed structural representation of taking turns.
Fig. 5, the utility model push rod insert spacing recessed structural representation of taking turns (colliding the limes superiors pin).
Fig. 6, the utility model push rod insert spacing recessed structural representation of taking turns (colliding the limit inferior pin).
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
On index dial 13 peripheries uniform tooth and installing hole are arranged, fix two upper and lower limit pins 17,23 in the lower surface edge installing hole respectively, distance determines according to the shunting switch gear bands between two pins, if there are 7 grades, 7 installing holes of the then upper and lower limit 17,23 interbody spacers are installed in respectively on the first and the 8th position of mounting hole.Index dial 13 and dead man 1 are fixed on the column 19, and column 19 is screwed on base plate 15.
Pull out to lead and have only a tooth and index dial 13 engagements on the tooth 9, helical gear 1 is led tooth 9 usefulness collars and is fixed on axle 8 upper end and switch tap conversion indicating dial coaxial 8 with pulling out, helical gear 22 engagements on helical gear 1 and the output shaft 1, output shaft 1 is fixed with axle sleeve 3 matched in clearance and the spacing recessed 5 usefulness keys of taking turns, axle sleeve 3 is screwed and is connected in the middle of limit base 4 front end faces, limit base 4 is fixed on the base plate 15, as shown in Figure 1 and Figure 2.
Pull out and lead tooth 9 and turn around, index dial 13 rotates one grade.
One end of push rod 11 is connected with back-moving spring 7, end is adjusted nut 16 and push-plate 18 with being threaded in addition, and pressing plate 6 is screwed on the sidewall of limit base 4, and back-moving spring 7 is installed in the pressing plate 6, as shown in Figure 4, adjust the length that nut 16 is used for regulating push rod 11.
Groove on push-plate 18 lower surfaces with an end in contact of dead man 1, cooperate, the other end of dead man 1 is vertical free end.
Installing rack 14 is fixed on the base plate 15, and dead man 2 21 is fixed on the installing rack 14 by bearing pin 22, and a side cooperates with push-plate 18.
During work, output shaft 1 rotates and drives helical gear 22 rotations, and the helical gear 1 by engagement drives pulling out of coaxial 8 tops and leads tooth 9 and rotate, lead index dial 13 rotations that tooth 9 drives engagement by pulling out, when electric spacing the breaking down of motor drive mechanism, index dial 13 surpasses original slewing area and rotates, when index dial 13 turns to limes superiors pin 17 on it when running into dead man 1, stir dead man 1 and promote push-plate 18 and connect into whole push rod 11 by limes superiors pin 17 and move forward with push-plate, in push rod 11 front ends insert spacing recessed breach 24 of taking turns on 5, by the spacing recessed 5 stuck output shafts 1 of taking turns it can not be rotated, output shaft 1 quits work, just can check, fix a breakdown, as shown in Figure 5.
If index dial 13 counter-rotation, run into dead man 1 by the limit inferior pin 23 on the index dial, promoting dead man 1 moves right, promoting dead man 2 21 again by dead man 1 rotates along bearing pin 22 counter-clockwise direction, promote push-plate 18 by the end of dead man 2 21 again and drive push rods 11 and move forward, up to inserting spacing recessed the wheel in 5 the breach 24, stuck output shaft 1 does not allow its rotation, output shaft quits work, as shown in Figure 6.
After fault was got rid of, available rocking handle was hand, counter-rotation index dial 13 withdraws from push rod 11 under the effect of back-moving spring 7 from spacing recessed the wheel 5 breach 24 and the pressing plate 6, but output shaft 1 operate as normal again.
Claims (5)
1. the mechanical stop limiter of a tapping switch electric, it is characterized in that comprising by the gear drive part, the integral body that dead man is stirred partly and the push rod insertion portion connects into is formed, described gear drive part is by on having, limit inferior pin (17), pulling out on index dial (23) (13) and the helical gear one (10) coaxial (8) led tooth (9) engagement, helical gear two (2) engagements on helical gear one (10) and the output shaft (1) constitute, described push rod insertion portion is by having back-moving spring (7), the push rod (11) of push-plate (18) and spacing recessed wheel the (5) that is connected on the limit base (4), pressing plate (6) cooperation constitutes, and spacing recessed wheel the (5) is fixed on the output shaft (1), described dead man is stirred part by on the index dial (13), limit inferior pin (17), (23) respectively with dead man one (20), push-plate (18), dead man one (20), dead man two (21), push-plate (18) cooperation constitutes.
2. the mechanical stop limiter of tapping switch electric according to claim 1, it is characterized in that push rod (11) one ends are connected with back-moving spring (7), hold with adjustment nut (16) and the push-plate (18) of being threaded in addition, back-moving spring (7) is installed in the pressing plate (6).
3. the mechanical stop limiter of tapping switch electric according to claim 1, it is characterized in that limit base (4) is screwed on base plate (15), pressing plate (6) is screwed on a sidewall of limit base (4), also has been screwed axle sleeve (3) in the middle of limit base (4) front end face.
4. according to the mechanical stop limiter of claim 1 or 3 described tapping switch electrics, it is characterized in that output shaft (1) and axle sleeve (3) matched in clearance and spacing recessed wheel the (5) fix with key, have a breach (24) to cooperate on spacing recessed wheel the (5) periphery with push rod (11).
5. the mechanical stop limiter of tapping switch electric according to claim 1, it is characterized in that dead man one (20) is fixed on the base plate (15) by column (19), one end of dead man one (20) contacts, cooperates with groove on push-plate (18) lower surface, the other end of dead man one (20) is vertical free end, dead man two (21) is fixed on the installing rack (14) by bearing pin (22), and installing rack (14) is fixed on the base plate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201118928U CN201060748Y (en) | 2007-07-13 | 2007-07-13 | Mechanical position limiter for tapping switch electrically operated mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201118928U CN201060748Y (en) | 2007-07-13 | 2007-07-13 | Mechanical position limiter for tapping switch electrically operated mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060748Y true CN201060748Y (en) | 2008-05-14 |
Family
ID=39409234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201118928U Expired - Lifetime CN201060748Y (en) | 2007-07-13 | 2007-07-13 | Mechanical position limiter for tapping switch electrically operated mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060748Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127273B (en) * | 2007-07-13 | 2011-04-13 | 史伟峰 | Mechanical limit device of tapping switch electric device |
| CN104953549A (en) * | 2015-07-03 | 2015-09-30 | 江苏容天机电科技有限公司 | Step-by-step linkage protection device of on-load voltage regulation tapping switch |
| CN105549622A (en) * | 2015-12-21 | 2016-05-04 | 河北汉光重工有限责任公司 | Double limiting mechanism |
| CN108183042A (en) * | 2018-01-15 | 2018-06-19 | 贵州长征电气有限公司 | A kind of manual operation control mechanism of off circuit tap changer |
| CN113643914A (en) * | 2021-08-13 | 2021-11-12 | 浙江腾龙电器有限公司 | Tapping switch and electric mechanism mechanical limiting device equipped with same |
-
2007
- 2007-07-13 CN CNU2007201118928U patent/CN201060748Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127273B (en) * | 2007-07-13 | 2011-04-13 | 史伟峰 | Mechanical limit device of tapping switch electric device |
| CN104953549A (en) * | 2015-07-03 | 2015-09-30 | 江苏容天机电科技有限公司 | Step-by-step linkage protection device of on-load voltage regulation tapping switch |
| CN105549622A (en) * | 2015-12-21 | 2016-05-04 | 河北汉光重工有限责任公司 | Double limiting mechanism |
| CN108183042A (en) * | 2018-01-15 | 2018-06-19 | 贵州长征电气有限公司 | A kind of manual operation control mechanism of off circuit tap changer |
| CN113643914A (en) * | 2021-08-13 | 2021-11-12 | 浙江腾龙电器有限公司 | Tapping switch and electric mechanism mechanical limiting device equipped with same |
| CN113643914B (en) * | 2021-08-13 | 2023-11-21 | 浙江腾龙电器有限公司 | Tapping switch and electric mechanism mechanical limiting device equipped with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201060748Y (en) | Mechanical position limiter for tapping switch electrically operated mechanism | |
| US6471182B1 (en) | Control valves for heating and cooling systems | |
| CN201355579Y (en) | Mechanical interlocking mechanism of low-voltage circuit breaker | |
| CN203367180U (en) | Hand-operated and motor-driven integrated switching-off and switching-on device for circuit breaker | |
| CN101127273B (en) | Mechanical limit device of tapping switch electric device | |
| CN106864471A (en) | The lifting drive of floor push | |
| CN105448554A (en) | Motor-operating mechanism with wide-angle output | |
| CN104948670B (en) | A kind of dual input conversion equipment with auto-lock function | |
| CN219418276U (en) | Traffic signal lamp with fault emergency function | |
| CN215955116U (en) | Tapping switch electric mechanism with novel mechanical limiting device | |
| CN103835608A (en) | Electric car window glass emergency descending device | |
| CN103545149B (en) | A kind of circuit-breaker switching on-off operating device | |
| CN201862809U (en) | Novel lifting safety protecting mechanism for radial drilling machine | |
| CN101777440A (en) | Driving device for actuating mechanism | |
| EP1185454B1 (en) | Device for controlling an engine | |
| CN202084826U (en) | Locking mechanism of switch cabinet drawer unit | |
| CN204130370U (en) | Wide-angle output motor operating mechanism | |
| CN201741592U (en) | Driving device for operating mechanism | |
| CN101224640A (en) | Turn key manipulating mechanism | |
| CN201012544Y (en) | Urgent-stopping mechanism | |
| CN201796789U (en) | Limit device for manual control mechanism of off-circuit tap-changer | |
| CN203466146U (en) | Circuit breaker opening and closing manipulation device | |
| CN202148742U (en) | Electromagnetic automatic lock arranging device of intelligent serried shelf | |
| CN203129097U (en) | Manual-electric dual-purpose belt-wheel screw-rod type hoist | |
| CN113643914B (en) | Tapping switch and electric mechanism mechanical limiting device equipped with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080514 Effective date of abandoning: 20070713 |