CN113643914A - 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
- CN113643914A CN113643914A CN202110929497.5A CN202110929497A CN113643914A CN 113643914 A CN113643914 A CN 113643914A CN 202110929497 A CN202110929497 A CN 202110929497A CN 113643914 A CN113643914 A CN 113643914A
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- stop pin
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- 230000000670 limiting effect Effects 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 59
- 238000005096 rolling process Methods 0.000 claims abstract description 29
- 238000007906 compression Methods 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009471 action 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
- 230000002498 deadly effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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 tap changer of the invention 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 stop needle assembly comprises a stop needle; the inner end of the stop pin is inserted into a guide hole on the spindle box to form a sliding pair, and the outer end of the stop pin is provided with a rolling piece; in the guide hole, a compression spring for resetting is sleeved on the stop needle; in the spindle box, a main shaft is provided with a limit concave wheel matched with the stop pin; the cam component comprises a cam shaft, the cam shaft is matched with the bearing block to form a rotary pair, and a cam and a driving medium A are respectively arranged at two ends of the cam shaft; the cam is in transmission fit with the stop pin, the transmission part A is in transmission fit with the transmission part B linked with the gear disc, and after the gear disc rotates to the first gear and the last gear, the cam pushes the stop pin to be matched with the limiting concave wheel to form limiting, so that the main shaft is prevented from rotating, and the phenomenon that the electric tapping transformation exceeds the first gear and the last gear is avoided. Correspondingly, the invention also provides a mechanical limiting device of the electric mechanism.
Description
Technical Field
The invention relates to the technical field of tap changers, in particular to a tap changer and an electric mechanism mechanical limiting device equipped with the tap changer.
Background
The voltage regulation of the transformer is realized by changing the number of turns of a coil (generally a high-voltage coil) on one side of the transformer through a tap switch to adjust and connect the tap of the coil, so as to achieve the purpose of changing the output voltage. The electric mechanism is a device for controlling a tap changer to adjust the tapping position of a winding of a power transformer so as to change output voltage. In the process of the step-by-step gear shifting of the tap switch driven by the electric mechanism, in order to operate safely, a limit gear limiting device is generally arranged in the electric mechanism so as to ensure that the tap switch does not exceed a limit gear (namely, a first gear and a last gear). Besides an electronic limit protection device, a mechanical limit protection device is additionally arranged in an existing electric mechanism to ensure the safety of operation. At present, a mechanical protection device in an electric mechanism generally adopts a lever to stir a stop pin so as to limit the rotation of an output main shaft and achieve a limit gear position. Chinese patent CN200710070035.2 discloses a mechanical position limiter for electrical mechanism of tap switch, which is composed of a whole body formed by connecting gear transmission, shifting rod and push rod insertion part, where the gear transmission part is composed of indexing disc with upper and lower limit pins and shifting guide teeth on the same shaft of helical gear, the helical gear is composed of helical gear on the output shaft and the helical gear on the output shaft, the push rod insertion part is composed of push rod with reset spring and push disk, and limit concave wheel and press plate connected on the limit seat, and the limit concave wheel is connected on the output shaft, and the shifting rod shifting part is composed of upper and lower limit pins on the indexing disc, shifting rod one, shifting rod two and push disk. 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 operation of exceeding a limit gear in electric tapping transformation is avoided; however, the device has a complex structure, more related parts and troublesome field adjustment after installation.
Disclosure of Invention
The object of the present invention is to provide a tap changer equipped with electromechanical mechanical stop means to overcome the above mentioned problems of the prior art. The tap changer has long service life, fewer related parts of the electric mechanism mechanical limiting device, simplified structure, convenient assembly, low manufacturing cost and easy implementation, and can achieve the effect of mechanical limiting when the gear disc rotates to the first gear and the last gear through the mutual matching of the stop needle assembly and the cam assembly. Correspondingly, the invention also provides a mechanical limiting device of the electric mechanism.
For the tap changer, the technical scheme of the invention 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 stop needle assembly comprises a stop needle; the inner end of the stop pin is inserted into a guide hole on the spindle box to form a sliding pair, and the outer end of the stop pin is provided with a rolling piece; in the guide hole, a compression spring for resetting is sleeved on the stop needle; in the spindle box, a main shaft is provided with a limit concave wheel used for being matched with a stop pin; the cam component comprises a cam shaft, the cam shaft is matched with a fixedly arranged bearing seat through a bearing to form a rotary pair, and a cam and a driving medium A are respectively arranged at two ends of the cam shaft; the cam is in transmission fit with the rolling piece, the transmission part A is in transmission fit with the transmission part B linked with the gear disc, and after the gear disc rotates to the first gear and the last gear, the cam pushes the stop pin to be matched with the limiting concave wheel to form limiting.
Compared with the prior art, the mechanical limiting device provided by the tap changer comprises the stop needle assembly and the cam assembly, the stop needle assembly and the cam assembly are matched with each other, and after the gear disc rotates to the first gear and the last gear, the cam pushes the stop needle to be matched with the limiting concave wheel to form limiting, so that the rotation of the main shaft is prevented, the damage of the tap changer due to the fact that the electric tap changer exceeds the first gear and the last gear is avoided, and the service life of the tap changer is prolonged; the whole mechanical limiting device has fewer associated parts, simplified structure, convenient assembly, high reliability, low failure rate, low manufacturing cost and easy implementation. In addition, in the invention, the end part of the stopping needle is provided with the rolling piece matched with the cam, so that the stopping needle can be prevented from being deadly clamped in the pushing process, and the stopping needle is sleeved with the compression spring, so that the stopping needle can smoothly return by utilizing the spring force when resetting, and the stopping needle has reasonable structural design and high reliability.
Preferably, the cam comprises an A cam piece and a B cam piece, and the A cam piece and the B cam piece can be adjusted in angle relative to the camshaft; the cam piece A and the cam piece B respectively push the stop needle to be matched with the limit concave wheel to form limit when the tap changer is in an initial gear and a final gear. The cam adopts a structure of two cam pieces, so that fine adjustment during field installation is facilitated, and assembly errors can be effectively reduced; in addition, two cam pieces can form any angle, so that the cam piece can be applied to tap changer electric mechanisms of different standards, and the universality is high.
Preferably, a cam seat is arranged on the cam shaft, and the cam can be fixed on the cam shaft through the cam seat. At this moment, the cam is connected with the camshaft more firmly, thereby the cam can be stabilized on the camshaft in the rotation process of the camshaft, and the cam can be ensured to accurately and reliably touch the surface of the rolling part in the working process. Further, the cam shaft and the cam seat may be connected by a flat key. The flat key connection realizes the detachable connection between the cam shaft and the cam seat, so as to transmit torque and movement; at the moment, the structure is simple, and the disassembly and the assembly are convenient.
Preferably, the rolling member is a rolling bearing. Antifriction bearing frictional resistance is little for it is more laborsaving when the cam promotes the locking needle, and antifriction bearing easily purchases moreover, and the assembly is simple, makes things convenient for the maintenance when damage appears in the later stage to change. Further, the stop pin and the rolling bearing can be connected and fixed through riveting. 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.
Preferably, the transmission member A and the transmission member B are bevel gears, and the transmission member A and the transmission member B are meshed. The bevel gear transmission has the advantages of high efficiency, stable transmission ratio and the like, and the transmission between the gear disc and the cam is realized through the two bevel gears, so that the bevel gear transmission has high working reliability and long service life.
As optimization, a step is arranged on the stop needle and 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 ladder and preventing the stop pin from falling off when resetting. Therefore, the phenomenon that the stop pin is ejected and falls off due to overlarge elastic force of the compression spring in the reset process of the stop pin can be prevented.
For a mechanical limiting device, the technical scheme of the invention is as follows: the electric mechanism mechanical limiting device comprises a stop needle assembly and a cam assembly; the stop needle assembly comprises a stop needle; one end of the stopping needle is provided with a compression spring for resetting, and the other end of the stopping needle is provided with a rolling piece; the cam component comprises a cam shaft, the cam shaft is matched with the bearing block through a bearing to form a rotary pair, and a cam and a driving medium A are respectively arranged at two ends of the cam shaft; 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 electric mechanism mechanical limiting device consists of the stop needle 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; when the gear disc is applied to the tap changer, the cam assembly and the stop needle assembly are matched with each other, a mechanical limiting effect can be achieved, when the gear disc rotates to an initial gear position or a final gear position from other gear positions, the gear disc can not move to the same direction any more, and therefore the problem that the tap changer is damaged due to the fact that the electric tap changer exceeds the initial gear and the final gear can be avoided.
Preferably, the cam comprises an A cam piece and a B cam piece, and the A cam piece and the B cam piece can be adjusted in angle relative to the camshaft. The cam adopts a structure of two cam pieces, so that fine adjustment during field installation is facilitated, and assembly errors can be effectively reduced; in addition, two cam pieces can form any angle, so that the cam piece can be applied to tap changer electric mechanisms of different standards, and the universality is high.
Drawings
FIG. 1 is a schematic structural view of an electromechanical mechanical spacing device of the present invention;
FIG. 2 is a right side view of the electromechanical spacing device of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A of the electromechanical spacing device of FIG. 2;
FIG. 4 is an enlarged schematic view of the portion of circle C in FIG. 3;
FIG. 5 is a schematic view of the cam assembly of the present invention;
FIG. 6 is a cross-sectional view taken along line B of the cam assembly of FIG. 5;
fig. 7 is a schematic view of the electric mechanism in the tap changer of the present invention.
The labels in the figures are: 1-stop needle assembly, 101-stop needle, 1011-ladder, 102-rolling piece, 103-compression spring, 104-fixed pressing plate; 2-cam component, 201-cam shaft, 202-cam, 2021-A cam piece, 2022-B cam piece, 203-A transmission component, 204-bearing seat, 205-bearing and 206-cam seat; 3-a main spindle box; 4-a limit concave wheel; 5-a main shaft; 6-gear disc; 7-B transmission member.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Referring to fig. 1-7, the tap changer of the present invention 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 retaining needle assembly 1 comprises a retaining 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, a compression spring 103 for resetting is sleeved on the stop needle 101, and a rolling element 102 is arranged at the outer end of the stop needle; in the spindle box 3, a main shaft 5 is provided with a limit concave wheel 4 matched with the stop pin 101; the cam component 2 comprises a cam shaft 201, the cam shaft 201 is matched with a fixedly arranged bearing seat 204 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, and a screw can pass through the mounting hole to fix the bearing seat 204 on a working table surface; the bearing seat 204 is provided with a through hole, two ends of the through hole are respectively embedded with the 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 piece 203; the cam 202 is in transmission fit with the rolling part 102, the transmission part A203 is in transmission fit with the transmission part B7 linked with the gear disc 6, and after the gear disc 6 rotates to the first gear and the last gear, the cam 202 pushes the stopping needle 101 to be matched with the limiting concave wheel 4 to form limiting (a notch is formed in the limiting concave wheel 4, and the stopping needle 101 is inserted into the notch to form limiting).
Example (b):
in this embodiment, the cam 202 includes an a cam lobe 2021 and a B cam lobe 2022, and the a cam lobe 2021 and the B cam lobe 2022 are adjustable in angle with respect to the cam shaft 201; the cam piece A2021 and the cam piece B2022 respectively push the stop pin 101 to be matched with the limit concave wheel 4 to form a limit when the tap changer is in the initial gear and the final gear. The cam 202 adopts a structure of two cam pieces, so that fine adjustment during field installation is facilitated, and assembly errors can be effectively reduced; in addition, two cam pieces can form any angle, so that the cam piece can be applied to tap changer electric mechanisms of different standards, and the universality is high.
In this embodiment, 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. At this time, the connection between the cam 202 and the cam shaft 201 is 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 accurately and reliably touch the surface of the rolling member 102 during the operation. Further, the cam shaft 201 is connected with the cam seat 206 through a flat key. The flat key connection enables a detachable coupling between the cam shaft 201 and the cam seat 206 for transmitting torque and movement; at the moment, the structure is simple, and the disassembly and the assembly are convenient. Further, the cam 202 is fixed to the cam base 206 by screws. During installation, the cam plate A, B is fixed on the cam seat 206 by firstly overlapping the cam plate a 2021 and the cam plate B2022, adjusting the angle to a required angle, and then sequentially passing A, B the cam plate and the fixing hole on the cam seat 206 by using screws and locking, and simultaneously punching the positioning pin.
In this embodiment, the a transmission member 203 and the B transmission member 7 are both bevel gears, and the a transmission member 203 and the B transmission member 7 are engaged. The bevel gear transmission has the advantages of high efficiency, stable transmission ratio and the like, and the transmission between the gear disc 6 and the cam 202 is realized through the two bevel gears, so that the bevel gear transmission has high working reliability and long service life.
In this embodiment, referring to fig. 4, a step 1011 is disposed on the stopper pin 101, and the step 1011 is located in the guide hole; the compression spring 103 is located inside 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, and is simple in connection and convenient to assemble) for blocking the step 1011 and preventing the stop pin 101 from falling off when resetting. Therefore, the phenomenon that the stopping needle 101 is ejected and dropped due to the overlarge elastic force of the compression spring 103 in the process of resetting the stopping needle 101 can be prevented.
In this embodiment, the rolling member 102 is a rolling bearing. Antifriction bearing frictional resistance is little for it is more laborsaving when the cam promotes the locking needle, and antifriction bearing easily purchases moreover, and the assembly is simple, makes things convenient for the maintenance when damage appears in the later stage to change. Further, the stopper pin 101 and the rolling bearing may be fixed by riveting. 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.
The working principle is as follows:
after the gear disc 6 rotates to the initial gear (final gear), when the gear disc 6 continues to rotate in the same direction, the transmission part B7 linked with the gear disc is meshed with the transmission part A203 for transmission and drives the camshaft 201 to rotate; the cam plate A2021 (cam plate B2022) on the cam shaft 201 rotates and touches the rolling element 102 at the end of the stopping needle 101, and pushes the stopping needle 101 to move forward until the inner end of the stopping needle 101 is pushed into the gap of the limiting concave wheel 4 to form limiting; at this time, the stop pin 101 locks the main shaft 5 so that the main shaft cannot rotate; when the gear disc 6 rotates reversely, the stopper pin 101 retreats from the notch of the limiting concave wheel 4 under the action of the compression spring 103, so that the reset is realized, and the main shaft 5 continues to work normally.
Referring to fig. 1 to 6, the electromechanical mechanical stopper of the present invention includes a stopper needle assembly 1 and a cam assembly 2; the retaining needle assembly 1 comprises a retaining 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 element 102; the cam component 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 driving fit with the rolling member 102, and the A transmission member 203 is used for driving fit with the B transmission member 7 linked with the gear disc 6; the cam 202 includes an a cam lobe 2021 and a B cam lobe 2022, and the a cam lobe 2021 and the B cam lobe 2022 are angularly adjustable with respect to the cam shaft 201.
When the electric mechanism mechanical limiting device is arranged on a tap changer, a stop pin 101 is inserted into a guide hole on a main spindle box 3 to form a sliding pair, and a compression spring 103 is positioned in the guide hole; the A transmission piece 203 is connected with the B transmission piece 7 which is linked with the gear disc 6; the bearing block 204 is fixed to the work surface. When the gear disc 6 rotates, the cam sheet a 2021 and the cam sheet 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 the stop pin cooperates with the limit concave wheel 4 to form a limit, so that the spindle 5 is prevented from rotating.
The above general description of the invention and the description of the specific embodiments thereof, as referred to in this application, should not be construed as limiting the technical solutions of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the protection scope of the present application according to the disclosure of the present application without departing from the structural elements of the present invention.
Claims (10)
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 retaining needle assembly (1) comprises a retaining 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 part (102); in the guide hole, a compression spring (103) for resetting is sleeved on the stop needle (101); in the spindle box (3), a main shaft (5) is provided with a limit concave wheel (4) which is used for being matched with the stop pin (101); the cam component (2) comprises a cam shaft (201), the cam shaft (201) is matched with a fixedly arranged bearing seat (204) through a bearing (205) to form a rotary pair, and a cam (202) and an A transmission piece (203) are respectively arranged at two ends of the cam shaft (201); the cam (202) is in transmission fit with the rolling piece (102), the transmission piece A (203) is in transmission fit with the transmission piece B (7) linked with the gear disc (6), and after the gear disc (6) rotates to the first gear and the last gear, the cam (202) pushes the stop pin (101) to be matched with the limiting concave wheel (4) to form limiting.
2. Tap changer according to claim 1, characterized in that: the cam (202) comprises an A cam sheet (2021) and a B cam sheet (2022), and the A cam sheet (2021) and the B cam sheet (2022) can be angularly adjusted relative to the cam shaft (201); the cam piece A (2021) and the cam piece B (2022) respectively push the stop pin (101) to be matched with the limit concave wheel (4) to form limit when the tap changer is in an initial gear and a final gear.
3. Tap changer according to claim 1, characterized in that: 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).
4. The electrical mechanism of a tap changer with a novel mechanical stop device of claim 3, wherein: the camshaft (201) is connected with the cam seat (206) through a flat key.
5. Tap changer according to claim 1, characterized in that: the rolling element (102) is a rolling bearing.
6. Tap changer according to claim 5, characterized in that: the stop pin (101) is fixedly connected with the rolling bearing through riveting.
7. Tap changer according to claim 1, characterized in that: the transmission piece A (203) and the transmission piece B (7) are both bevel gears, and the transmission piece A (203) is meshed with the transmission piece B (7).
8. Tap changer according to claim 1, characterized in that: a step (1011) is arranged on the stop pin (101), and the step (1011) is positioned in the guide hole; the compression spring (103) is located inside the step (1011); and a fixed pressing plate (104) is correspondingly arranged on the spindle box (3) and used for blocking the ladder (1011) and preventing the stop pin (101) from falling off when resetting.
9. Electric mechanism machinery stop device, its characterized in that: comprises a stop pin assembly (1) and a cam assembly (2); the retaining needle assembly (1) comprises a retaining 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 element (102); the cam component (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 a cam (202) and an A transmission piece (203) are respectively arranged at two ends of the cam shaft (201); 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 member (102), and the A transmission member (203) is used for being in transmission fit with the B transmission member (7) linked with the gear disc (6).
10. The electromechanical mechanical stop device of claim 9, wherein: the cam (202) comprises an A cam sheet (2021) and a B cam sheet (2022), and the A cam sheet (2021) and the B cam sheet (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 true CN113643914A (en) | 2021-11-12 |
| CN113643914B CN113643914B (en) | 2023-11-21 |
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| 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 |
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| 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 |
|---|---|
| CN113643914B (en) | 2023-11-21 |
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