CN113643914B - Tapping switch and electric mechanism mechanical limiting device equipped with same - Google Patents
Tapping switch and electric mechanism mechanical limiting device equipped with same Download PDFInfo
- Publication number
- CN113643914B CN113643914B CN202110929497.5A CN202110929497A CN113643914B CN 113643914 B CN113643914 B CN 113643914B CN 202110929497 A CN202110929497 A CN 202110929497A CN 113643914 B CN113643914 B CN 113643914B
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- 230000000670 limiting effect Effects 0.000 title claims abstract description 40
- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 57
- 238000005096 rolling process Methods 0.000 claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The tapping switch of the application comprises an electric mechanism; the electric mechanism comprises a mechanical limiting device; the mechanical limiting device comprises a stop needle assembly and a cam assembly; the stopper needle assembly includes a stopper needle; the inner end of the stop pin is inserted into a guide hole on the main shaft box to form a sliding pair, and the outer end of the stop pin is provided with a rolling piece; a compression spring for resetting is sleeved on the stop needle in the guide hole; in the main shaft box, a limiting concave wheel matched with the stop pin is arranged on the main shaft; the cam assembly comprises a cam shaft, the cam shaft is matched with the bearing seat to form a revolving pair, and two ends of the cam shaft are respectively provided with a cam and an A transmission piece; the cam is in transmission fit with the stop pin, the A transmission piece is in transmission fit with the B transmission piece in linkage with the gear disc, after the gear disc rotates to the beginning and end gears, the cam pushes the stop pin to be matched with the limiting concave wheel to form a limit, and the main shaft is prevented from rotating, so that the operation of exceeding the beginning and end gears in electric tapping conversion is avoided. Correspondingly, the application also provides a mechanical limiting device of the electric mechanism.
Description
Technical Field
The application relates to the technical field of tapping switches, in particular to a tapping switch and an electric mechanism mechanical limiting device equipped with the tapping switch.
Background
The transformer voltage regulation is to change the number of turns of a coil (generally a high-voltage coil) on one side of the transformer by regulating the tap of the coil through a tap switch, so as to achieve the purpose of changing the output voltage. The electric mechanism is a device for controlling the tapping switch to adjust the tapping position of the winding of the power transformer so as to change the output voltage. In the step-by-step gear shifting process of the tapping switch driven by the electric mechanism, for operation safety, a limit gear limiting device is generally arranged in the electric mechanism so as to ensure that the tapping switch does not exceed the limit gear (namely, start and end gears). Besides the electronic limit protection device, a mechanical limit protection device is added in the existing electric mechanism to ensure the operation safety. The mechanical protection device in the current electric mechanism generally adopts a lever to toggle a stop pin so as to limit the rotation of the output main shaft and reach the limit gear position. Chinese patent CN200710070035.2 discloses a mechanical limiting device of an electric mechanism of a tap switch, which is formed by integrally connecting a gear transmission part, a pulling rod pulling part and a push rod inserting part, wherein the gear transmission part is formed by meshing a dividing disc with upper and lower limit pins with a pulling guide tooth on the same axis of a bevel gear, the bevel gear is meshed with a bevel gear on an output shaft, the push rod inserting part is formed by matching a push rod with a reset spring and a push disc with a limiting concave wheel and a pressing plate connected on a limiting seat, the limiting concave wheel is connected on the output shaft, and the pulling rod pulling part is formed by matching upper and lower limit pins on the dividing disc with a pulling rod, a push disc, a pulling rod one, a pulling rod two and a push disc. The mechanical limiting device can clamp the output shaft to prevent the output shaft from rotating when the electric limiting of the electric mechanism fails, so that the electric tapping conversion is prevented from exceeding the limit gear; however, the device has a complex structure, more related parts and troublesome on-site adjustment after installation.
Disclosure of Invention
The present application aims to provide a tap changer equipped with an electromechanical mechanical stop device to overcome the above-mentioned problems of the prior art. The tapping switch has long service life, less parts and components associated with the mechanical limiting device of the electric mechanism, simple structure, convenient assembly, low manufacturing cost and easy implementation, and can achieve the function of mechanical limiting when the gear disc rotates to start and stop gears through the mutual matching of the stop pin assembly and the cam assembly. Correspondingly, the application also provides a mechanical limiting device of the electric mechanism.
For the tapping switch, the technical scheme of the application is as follows: the tapping switch comprises an electric mechanism; the electric mechanism comprises a mechanical limiting device; the mechanical limiting device comprises a stop needle assembly and a cam assembly; the stopper needle assembly includes a stopper needle; the inner end of the stop pin is inserted into a guide hole on the main shaft box to form a sliding pair, and the outer end of the stop pin is provided with a rolling piece; a compression spring for resetting is sleeved on the stop needle in the guide hole; a limiting concave wheel matched with the stop pin is arranged on the main shaft in the main shaft box; the cam assembly comprises a cam shaft, the cam shaft is matched with a bearing seat fixedly arranged through a bearing to form a revolving pair, and two ends of the cam shaft are respectively provided with a cam and an A transmission piece; the cam is in transmission fit with the rolling part, the transmission part A is in transmission fit with the transmission part B in linkage with the gear disc, and after the gear disc rotates to start and end gears, the cam pushes the stop needle to be matched with the limiting concave wheel to form limiting.
Compared with the prior art, the mechanical limiting device of the tapping switch comprises the stop pin assembly and the cam assembly, and the stop pin assembly and the cam assembly are matched with each other, so that after the gear disc rotates to the beginning and the end, the cam pushes the stop pin to be matched with the limit concave wheel to form limit, thereby preventing the rotation of the main shaft, avoiding the damage of the tapping switch caused by the operation of exceeding the beginning and the end of the electric tapping change, and prolonging the service life of the tapping switch; the whole mechanical limiting device has fewer associated parts, simplifies the structure, and has the advantages of convenient assembly, high reliability, low failure rate, low manufacturing cost and easy implementation. In addition, the end part of the stop needle is provided with the rolling piece matched with the cam, so that the stop needle can be prevented from being blocked in the pushing process, the stop needle is sleeved with the compression spring, and the stop needle can be smoothly returned by utilizing the spring force when being reset, so that the stop needle has reasonable structural design and high reliability.
As optimization, the cam comprises an A cam plate and a B cam plate, and the angle of the A cam plate and the B cam plate relative to the cam shaft can be adjusted; and the cam plate A and the cam plate B respectively push the stop pin to be matched with the limit concave wheel to form limit when the tapping switch is in an initial gear and a final gear. The cam adopts a structure of two cam sheets, so that fine adjustment is convenient in field installation, and assembly errors can be effectively reduced; in addition, two cam sheets can form any angle, so that the cam sheets can be applied to tapping switch electric mechanisms with different standards, and the cam sheets are high in universality.
As optimization, the cam seat is arranged on the cam shaft, and the cam can be fixed on the cam shaft through the cam seat. At this time, the connection of cam and camshaft is comparatively firm to make at camshaft rotatory in-process, the cam can be stabilized on the camshaft, ensure that the cam can be accurate, reliably touch the surface of rolling element in the course of the work. Further, the cam shaft and the cam seat can be connected through a flat key. The flat key connection realizes the detachable connection between the cam shaft and the cam seat for transmitting torque and movement; at this time, the structure is simple, and the disassembly and the assembly are convenient.
Preferably, the rolling elements are rolling bearings. The friction resistance of the rolling bearing is small, so that the force is saved when the cam pushes the stop needle, the rolling bearing is easy to purchase, the assembly is simple, and the maintenance and the replacement are convenient when the cam is damaged in the later period. Further, the stop pin and the rolling bearing can be fixed through riveting connection. The riveting connection has the advantages of small deformation, high strength and the like, so that the rolling bearing is not easy to loosen in the working process.
As optimization, the transmission part A and the transmission part B are bevel gears, and the transmission part A and the transmission part B are meshed. The bevel gear transmission has the advantages of high efficiency, stable transmission ratio and the like, and in the application, the transmission between the gear disc and the cam is realized through two bevel gears, so that the working reliability is high and the service life is long.
As optimization, the stop needle is provided with a step, and the step is positioned in the guide hole; the compression spring is positioned on the inner side of the step; and the spindle box is correspondingly provided with a fixed pressing plate for blocking the step and preventing the stop needle from falling off during resetting. Therefore, the phenomenon that the stop needle is ejected and falls out due to the overlarge elastic force of the compression spring in the process of resetting the stop needle can be prevented.
For the mechanical limiting device, the technical scheme of the application is as follows: the mechanical limiting device of the electric mechanism comprises a stop needle assembly and a cam assembly; the stopper needle assembly includes a stopper needle; one end of the stop needle is provided with a compression spring for resetting, and the other end of the stop needle is provided with a rolling piece; the cam assembly comprises a cam shaft, the cam shaft is matched with the bearing seat through a bearing to form a rotary pair, and two ends of the cam shaft are respectively provided with a cam and an A transmission part; the bottom of the bearing seat is provided with a mounting hole for fixing; the cam is in transmission fit with the rolling piece, and the A transmission piece is used for being in transmission fit with the B transmission piece linked with the gear disc.
Compared with the prior art, the mechanical limiting device of the electric mechanism consists of the stop pin assembly and the cam assembly, has fewer related parts, is convenient to assemble, high in reliability, low in failure rate, low in manufacturing cost and easy to implement; the gear disc is applied to the tapping switch, the cam assembly and the stop pin assembly are matched with each other, so that the mechanical limiting effect can be achieved, and when the gear disc rotates from other gear positions to the initial gear position or the final gear position, the gear disc cannot move continuously in the same direction, so that the tapping switch is prevented from being damaged due to the fact that the electric tapping conversion exceeds the initial gear or the final gear.
Preferably, the cam comprises an A cam plate and a B cam plate, and the angle of the A cam plate and the angle of the B cam plate relative to the cam shaft can be adjusted. The cam adopts a structure of two cam sheets, so that fine adjustment is convenient in field installation, and assembly errors can be effectively reduced; in addition, two cam sheets can form any angle, so that the cam sheets can be applied to tapping switch electric mechanisms with different standards, and the cam sheets are high in universality.
Drawings
FIG. 1 is a schematic view of the mechanical stop device of the electric mechanism of the present application;
FIG. 2 is a right side view of the electromechanical mechanical stop device of FIG. 1;
FIG. 3 is an A-direction cross-sectional view of the electromechanical mechanical stop device of FIG. 2;
FIG. 4 is an enlarged schematic view of the C-circle portion of FIG. 3;
FIG. 5 is a schematic illustration of the cam assembly of the present application;
FIG. 6 is a B-direction cross-sectional view of the cam assembly of FIG. 5;
fig. 7 is a schematic view of the structure of the electric mechanism in the tap changer of the present application.
The marks in the drawings are: 1-a stop needle assembly, 101-a stop needle, 1011-a step, 102-a rolling element, 103-a compression spring, 104-a fixed platen; 2-cam assembly, 201-cam shaft, 202-cam, 2021-a cam plate, 2022-B cam plate, 203-a driving member, 204-bearing housing, 205-bearing, 206-cam housing; 3-a spindle box; 4-limiting concave wheels; 5-a main shaft; 6-gear disc; 7-B transmission member.
Detailed Description
The application is further illustrated by the following figures and examples, which are not intended to be limiting.
Referring to fig. 1 to 7, the tap changer of the present application includes an electric mechanism; the electric mechanism comprises a mechanical limiting device; the mechanical limiting device comprises a stop needle assembly 1 and a cam assembly 2; the stopper needle assembly 1 comprises a stopper needle 101; the inner end of the stop pin 101 is inserted into a guide hole on the spindle box 3 to form a sliding pair; in the guide hole, the stop needle 101 is sleeved with a compression spring 103 for resetting, and the outer end of the stop needle is provided with a rolling piece 102; in the main shaft box 3, a main shaft 5 is provided with a limiting concave wheel 4 which is used for being matched with a stop pin 101; the cam assembly 2 comprises a cam shaft 201, wherein the cam shaft 201 is matched with a bearing seat 204 fixedly arranged through a bearing 205 to form a rotary pair (the bottom of the bearing seat 204 is provided with a mounting hole for mounting and fixing, a screw can pass through the mounting hole to fix the bearing seat 204 on a workbench surface, a through hole is formed in the bearing seat 204, two ends of the through hole are respectively embedded with one bearing 205, the cam shaft 201 passes through 2 bearings 205 and is fixed on the bearing seat 204), and two ends of the cam shaft 201 are respectively provided with a cam 202 and an A transmission member 203; the cam 202 is in driving fit with the rolling element 102, the a driving element 203 is in driving fit with the B driving element 7 which is in linkage with the gear disc 6, and after the gear disc 6 rotates to the start and end gear, the cam 202 pushes the stop needle 101 to be matched with the limit concave wheel 4 to form limit (a notch is arranged on the limit concave wheel 4, and the stop needle 101 is inserted into the notch to form limit).
Examples:
in this embodiment, the cam 202 includes an a cam plate 2021 and a B cam plate 2022, and the a cam plate 2021 and the B cam plate 2022 may be adjusted in angle with respect to the cam shaft 201; the a and B cam pieces 2021 and 2022 advance the latch needle 101 into engagement with the limit cam 4 to form a limit when the tap changer is in the initial and final positions, respectively. The cam 202 adopts a structure of two cam plates, so that fine adjustment during field installation is facilitated, and assembly errors can be effectively reduced; in addition, two cam sheets can form any angle, so that the cam sheets can be applied to tapping switch electric mechanisms with different standards, and the cam sheets are high in universality.
In this embodiment, the cam seat 206 is disposed on the cam shaft 201, and the cam 202 is fixed on the cam shaft 201 through the cam seat 206. At this time, the connection between the cam 202 and the cam shaft 201 is relatively firm, so that the cam 202 can be stabilized on the cam shaft 201 during the rotation of the cam shaft 201, and the cam 202 can be ensured to precisely and reliably touch the surface of the rolling element 102 during the working process. Further, the cam shaft 201 is connected to the cam seat 206 by a flat key. The flat key connection enables a detachable coupling between the camshaft 201 and the cam base 206 for transmitting torque and movement; at this time, the structure is simple, and the disassembly and the assembly are convenient. Further, the cam 202 is fixed to the cam seat 206 by a screw. When in installation, the A cam plate 2021 and the B cam plate 2022 are firstly overlapped together and adjusted to a required angle, then screws are used for penetrating through fixing holes on the A, B cam plate and the cam seat 206 in sequence and locking, and meanwhile, positioning pins are punched, so that the A, B cam plate is fixed on the cam seat 206.
In this embodiment, the a transmission member 203 and the B transmission member 7 are bevel gears, and the a transmission member 203 and the B transmission member 7 are meshed. The bevel gear transmission has the advantages of high efficiency, stable transmission ratio and the like, and in the application, the transmission between the gear disc 6 and the cam 202 is realized through two bevel gears, so that the working reliability is high and the service life is long.
In this embodiment, referring to fig. 4, the stopping needle 101 is provided with a step 1011, and the step 1011 is located in the guiding hole; the compression spring 103 is positioned on the inner side of the step 1011; the spindle box 3 is correspondingly provided with a fixed pressing plate 104 (the fixed pressing plate 104 can be fixed on the spindle box 3 through screws, the connection is simple, the assembly is convenient), and the fixed pressing plate is used for blocking the step 1011 and preventing the stop needle 101 from falling off when being reset. Thus, it is possible to prevent the phenomenon that the stopper needle 101 is ejected and dropped due to the excessive elastic force of the compression spring 103, which occurs during the return of the stopper needle 101.
In this embodiment, the rolling element 102 is a rolling bearing. The friction resistance of the rolling bearing is small, so that the force is saved when the cam pushes the stop needle, the rolling bearing is easy to purchase, the assembly is simple, and the maintenance and the replacement are convenient when the cam is damaged in the later period. Further, the stopper pin 101 and the rolling bearing may be fixed by caulking. The riveting connection has the advantages of small deformation, high strength and the like, so that the rolling bearing is not easy to loosen in the working process.
Working principle:
after the gear disc 6 rotates to an initial gear (final gear), when the gear disc 6 continues to rotate in the same direction, the B transmission piece 7 linked with the gear disc is meshed with the A transmission piece 203 for transmission and drives the cam shaft 201 to rotate; an A cam piece 2021 (B cam piece 2022) on the cam shaft 201 rotates and touches the rolling piece 102 at the end part of the stop pin 101, so that the stop pin 101 is pushed to move forward until the inner end of the stop pin 101 is pushed into a notch of the limit concave wheel 4 to form limit; at this time, the stopper pin 101 locks the main shaft 5 so that it cannot rotate; the gear disc 6 is reversely rotated, the stop needle 101 is withdrawn from the notch of the limiting concave wheel 4 under the action of the compression spring 103, the reset is realized, and the main shaft 5 continues to work normally.
Referring to fig. 1 to 6, the electromechanical mechanical limiter of the present application comprises a stopper needle assembly 1 and a cam assembly 2; the stopper needle assembly 1 comprises a stopper needle 101; one end of the stop needle 101 is sleeved with a compression spring 103 for resetting, and the other end of the stop needle is provided with a rolling piece 102; the cam assembly 2 comprises a cam shaft 201, the cam shaft 201 is matched with a bearing seat 204 through a bearing 205 to form a revolving pair, and two ends of the cam shaft 201 are respectively provided with a cam 202 and an A transmission member 203; the bottom of the bearing seat 204 is provided with a mounting hole for fixing; the cam 202 is in transmission fit with the rolling element 102, and the A transmission element 203 is used for being in transmission fit with the B transmission element 7 which is in linkage with the gear disc 6; the cam 202 includes an a-cam plate 2021 and a B-cam plate 2022, and the a-cam plate 2021 and the B-cam plate 2022 are angularly adjustable with respect to the cam shaft 201.
When the mechanical limiting device of the electric mechanism is arranged on the tapping switch, the stop pin 101 is inserted into a guide hole on the main shaft box 3 to form a sliding pair, and the compression spring 103 is positioned in the guide hole; the transmission member A203 is connected with the transmission member B7 which is linked with the gear disc 6; the bearing housing 204 is secured to the work surface. When the gear disc 6 rotates, the cam pieces a 2021 and B2022 respectively push the stop pin 101 into the limit concave wheel 4 arranged in the spindle box 3 when the gear disc 6 is in the initial gear and the final gear, and form limit with the limit concave wheel 4 to prevent the spindle 5 from rotating.
The above general description of the application and the description of specific embodiments thereof in relation to the present application should not be construed as limiting the scope of the application. Those skilled in the art can add, subtract or combine the features disclosed in the foregoing general description and/or the detailed description (including examples) to form other technical solutions within the scope of the application without departing from the disclosure of the application.
Claims (8)
1. The tapping switch comprises an electric mechanism; the method is characterized in that: the electric mechanism comprises a mechanical limiting device; the mechanical limiting device comprises a stop needle assembly (1) and a cam assembly (2); the stopper needle assembly (1) comprises a stopper needle (101); the inner end of the stop pin (101) is inserted into a guide hole on the spindle box (3) to form a sliding pair, and the outer end of the stop pin is provided with a rolling piece (102); a compression spring (103) for resetting is sleeved on the stop needle (101) in the guide hole; in the main shaft box (3), a limiting concave wheel (4) which is used for being matched with the stop pin (101) is arranged on the main shaft (5); the cam assembly (2) comprises a cam shaft (201), the cam shaft (201) is matched with a bearing seat (204) fixedly arranged through a bearing (205) to form a rotary pair, and two ends of the cam shaft (201) are respectively provided with a cam (202) and an A transmission piece (203); the cam (202) is in transmission fit with the rolling element (102), and the A transmission element (203) is in transmission fit with the B transmission element (7) which is linked with the gear disc (6); a notch is arranged on the limiting concave wheel (4); the cam (202) comprises an A cam plate (2021) and a B cam plate (2022), and the A cam plate (2021) and the B cam plate (2022) can adjust angles relative to the cam shaft (201); the A cam piece (2021) and the B cam piece (2022) respectively push the stop pin (101) into the notch of the limit concave wheel (4) when the tapping switch is in the initial gear and the final gear, so that limit is formed.
2. The tap changer of claim 1, wherein: the cam shaft (201) is provided with a cam seat (206), and the cam (202) is fixed on the cam shaft (201) through the cam seat (206).
3. The tap changer of claim 2, wherein: the cam shaft (201) is connected with the cam seat (206) through a flat key.
4. The tap changer of claim 1, wherein: the rolling elements (102) are rolling bearings.
5. The tap changer of claim 4, wherein: the stop needle (101) is fixedly connected with the rolling bearing through riveting.
6. The tap changer of claim 1, wherein: the A transmission piece (203) and the B transmission piece (7) are bevel gears, and the A transmission piece (203) is meshed with the B transmission piece (7).
7. The tap changer of claim 1, wherein: a step (1011) is arranged on the stop needle (101), and the step (1011) is positioned in the guide hole; the compression spring (103) is positioned on the inner side of the step (1011); the spindle box (3) is correspondingly provided with a fixed pressing plate (104) for blocking the step (1011) and preventing the stop needle (101) from falling off during resetting.
8. Electric mechanism mechanical stop device, its characterized in that: comprises a stop needle assembly (1) and a cam assembly (2); the stopper needle assembly (1) comprises a stopper needle (101); one end of the stop needle (101) is sleeved with a compression spring (103) for resetting, and the other end of the stop needle is provided with a rolling piece (102); the cam assembly (2) comprises a cam shaft (201), the cam shaft (201) is matched with a bearing seat (204) through a bearing (205) to form a rotary pair, and two ends of the cam shaft (201) are respectively provided with a cam (202) and an A transmission piece (203); the bottom of the bearing seat (204) is provided with a mounting hole for fixing; the cam (202) is in transmission fit with the rolling element (102), and the A transmission element (203) is used for being in transmission fit with the B transmission element (7) linked with the gear disc (6); the cam (202) comprises an A cam piece (2021) and a B cam piece (2022), and the A cam piece (2021) and the B cam piece (2022) can be adjusted in angle relative to the cam shaft (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110929497.5A CN113643914B (en) | 2021-08-13 | 2021-08-13 | Tapping switch and electric mechanism mechanical limiting device equipped with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110929497.5A CN113643914B (en) | 2021-08-13 | 2021-08-13 | Tapping switch and electric mechanism mechanical limiting device equipped with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113643914A CN113643914A (en) | 2021-11-12 |
| CN113643914B true CN113643914B (en) | 2023-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110929497.5A Active CN113643914B (en) | 2021-08-13 | 2021-08-13 | Tapping switch and electric mechanism mechanical limiting device equipped with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113643914B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201060748Y (en) * | 2007-07-13 | 2008-05-14 | 史伟峰 | Mechanical position limiter for tapping switch electrically operated mechanism |
| CN201796789U (en) * | 2010-09-30 | 2011-04-13 | 史伟峰 | Limit device for manual control mechanism of off-circuit tap-changer |
| CN205428739U (en) * | 2016-03-18 | 2016-08-03 | 宁波高新区甬江电力设备厂 | Limit stop gear of tapping switch controller |
| CN210516515U (en) * | 2019-09-27 | 2020-05-12 | 浙江腾龙电器有限公司 | Tap switch operating mechanism with starting and end gear limiting functions |
| CN215955116U (en) * | 2021-08-13 | 2022-03-04 | 浙江腾龙电器有限公司 | Tapping switch electric mechanism with novel mechanical limiting device |
-
2021
- 2021-08-13 CN CN202110929497.5A patent/CN113643914B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201060748Y (en) * | 2007-07-13 | 2008-05-14 | 史伟峰 | Mechanical position limiter for tapping switch electrically operated mechanism |
| CN201796789U (en) * | 2010-09-30 | 2011-04-13 | 史伟峰 | Limit device for manual control mechanism of off-circuit tap-changer |
| CN205428739U (en) * | 2016-03-18 | 2016-08-03 | 宁波高新区甬江电力设备厂 | Limit stop gear of tapping switch controller |
| CN210516515U (en) * | 2019-09-27 | 2020-05-12 | 浙江腾龙电器有限公司 | Tap switch operating mechanism with starting and end gear limiting functions |
| CN215955116U (en) * | 2021-08-13 | 2022-03-04 | 浙江腾龙电器有限公司 | Tapping switch electric mechanism with novel mechanical limiting device |
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| Publication number | Publication date |
|---|---|
| CN113643914A (en) | 2021-11-12 |
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