CN218730607U - Three-station operating mechanism with automatic clutch function after switching-on and switching-off operation in place - Google Patents
Three-station operating mechanism with automatic clutch function after switching-on and switching-off operation in place Download PDFInfo
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- CN218730607U CN218730607U CN202222556604.7U CN202222556604U CN218730607U CN 218730607 U CN218730607 U CN 218730607U CN 202222556604 U CN202222556604 U CN 202222556604U CN 218730607 U CN218730607 U CN 218730607U
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Abstract
The utility model relates to a high tension switchgear field, concretely relates to three station operating device with close, automatic separation and reunion function after separating brake operation targets in place, which comprises a frame, frame upper portion transversely is provided with a pair of transmission shaft, the front portion of transmission shaft all rotates to be connected with rather than sliding fit and by actuating mechanism driven two-way clutch drive gear, and preceding, the rear side correspondence that lies in two-way clutch drive gear on the transmission shaft is provided with two-way clutch drive gear matched with reverse transmission gear and forward drive gear, the lower part both sides of frame all are provided with and go up and down and be used for closing, the slider of separating brake operation through the drive mechanism drive by the transmission shaft, the anterior sliding connection of slider has the connecting rod that can surmount that has slip limit structure, the upper portion that can surmount the connecting rod all articulates with the rear portion of a turning arm mutually, turning arm middle part is rotated with the frame and is connected and is fixed with the shift fork that drives two-way clutch drive gear along transmission shaft axial displacement, and the spring that upper portion slant rear top and be connected with the frame is all installed to the front portion of turning arm. The three-station operating mechanism is compact in structure, and can effectively avoid mechanical damage of a transmission link.
Description
Technical Field
The utility model relates to a high tension switchgear field, concretely relates to three station operating device with close, automatic separation and reunion function after separating brake operation targets in place.
Background
The three-station isolating switch is arranged between a main bus and a feeder side circuit breaker in a medium-voltage power system, plays the role of a main element of a safety isolation fracture and a feeder side grounding during maintenance, has the function of ensuring the safety of maintainers, and is an essential main element of switch equipment. Traditional three-station isolating switch all adopts manual local operation, can not realize remote control, has because of the maloperation arouses the equipment accident, threatens the hidden danger of personal safety. And after the traditional three-station mechanism is driven in place, the stroke is controlled by means of on-off of a limit switch contact, a reliable mechanical protection link is lacked, and mechanical damage of the mechanism is often caused by damage of the limit switch contact and inaccurate stroke control. The existing social energy is short of supply, the development of clean green energy is the development trend in the future, the photovoltaic and wind power generation industries are developed rapidly, and most of the photovoltaic and wind power generation industries are in remote or barren areas away from a central town, so that a three-position isolating switch operating mechanism capable of being remotely and fully electrically controlled needs to be matched.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a three station operating device with close, automatic separation and reunion function after the separating brake operation targets in place, this three station operating device compact structure can effectively avoid the mechanical damage of transmission link.
The technical scheme of the utility model lies in: the utility model provides a three-station operating device with close, automatic separation and reunion function behind the switching-on operation targets in place, includes the frame, frame upper portion transversely is provided with a pair of transmission shaft, the front portion of transmission shaft all rotates to be connected with rather than sliding fit and by actuating mechanism driven two-way clutch drive gear, and the preceding, rear side correspondence that lie in two-way clutch drive gear on the transmission shaft is provided with reverse transmission gear and the forward drive gear with two-way clutch drive gear matched with, the lower part both sides of frame all are provided with and go up and down and be used for closing, the slider of switching-on operation through the drive mechanism drive by the transmission shaft, the anterior sliding connection of slider has the connecting rod that can surmount that has slip limit structure, the upper portion that can surmount the connecting rod all articulates with the rear portion of a turning arm, turning arm middle part is rotated with the frame and is connected and is fixed with the shift fork that drives two-way clutch drive gear along transmission shaft axial displacement, and the spring that upper portion slant rear top and frame be connected is all installed to the front portion of turning arm.
Furthermore, the reverse transmission gear comprises an anticlockwise helicoid arranged on the front end face of the two-way clutch transmission gear, the head end and the tail end of the anticlockwise helicoid are connected through a vertical face to form a reverse transmission gear face, and a reverse transmission pin matched with the reverse transmission gear face to complete reverse transmission is fixed on the transmission shaft at the front side of the two-way clutch transmission gear.
Furthermore, the forward transmission gear comprises a clockwise spiral surface arranged on the rear end face of the bidirectional clutch transmission gear, the head end and the tail end of the clockwise spiral surface are connected through a vertical surface to form a forward transmission gear face, and a forward transmission pin matched with the forward transmission gear face to complete forward transmission is fixed on the transmission shaft at the rear side of the bidirectional clutch transmission gear.
Furthermore, the transmission mechanism comprises a vertically arranged screw rod, the upper part and the lower part of the screw rod are rotatably connected with the rack, the upper end of the screw rod is in transmission connection with the rear part of the transmission shaft through a bevel gear pair, and the sliding block is fixedly connected with a nut seat arranged on the screw rod.
Further, the sliding limiting structure comprises a sliding groove which is vertically arranged on the overrunning connecting rod, a sliding pin is fixed to the front portion of the sliding block through a connecting piece, and the sliding pin is in sliding fit with the sliding groove.
Furthermore, the lower side of the bidirectional clutch transmission gear on the rack is rotatably connected with a swing arm shaft which is longitudinally arranged, the middle part of the crank arm is fixedly connected with one end part of the swing arm shaft, and the shifting fork is fixedly connected with the other end part of the swing arm shaft.
Furthermore, the driving mechanisms respectively comprise motors transversely arranged on the upper part of the rack, and driving gears meshed with the bidirectional clutch transmission gears are arranged on output shafts of the motors.
Compared with the prior art, the utility model has the advantages of it is following:
the three-station electric mechanism is characterized in that a left screw rod slide block kinematic pair and a right screw rod slide block kinematic pair are respectively driven by two motors, so that the output shaft of the mechanism is clockwise rotated by 90 degrees from a middle station, and the closing operation of an isolating switch is completed; the mechanism output shaft rotates 90 degrees anticlockwise from the switching-on position to complete the switching-off operation of the isolating switch, and returns to the middle station; an output shaft of the mechanism rotates 90 degrees anticlockwise from the middle station to complete the grounding and closing operation of the isolating switch; and the output shaft of the mechanism rotates 90 degrees clockwise from the grounding position to complete the grounding and opening operation of the isolating switch. When the first motor positive rotation driving mechanism screw rod sliding block kinematic pair reaches the isolation closing position, the first bidirectional clutch transmission gear is separated from a positive transmission gear, a reverse transmission gear is hung, isolation brake-separating transmission preparation is completed, at the moment, the motor positive transmission idles, mechanical damage of a transmission link is effectively avoided, and isolation brake-separating operation is not performed. When the second motor reverse rotation driving mechanism screw rod sliding block kinematic pair is in a grounding closing position, the second bidirectional clutch transmission gear is separated from a reverse transmission gear, a forward transmission gear is hung, grounding brake-separating transmission preparation is completed, at the moment, the motor reverse rotation transmission idles, mechanical damage of a transmission link is effectively avoided, and the grounding brake-separating operation is not performed.
Drawings
Fig. 1 is a schematic structural view of the mechanism at the isolation separating brake station of the present invention;
fig. 2 is a right-side schematic view of fig. 1 (with some components omitted) according to the present invention;
fig. 3 is a schematic top view of fig. 1 according to the present invention;
in the figure: 1. a frame; 2. isolating the transmission shaft; 3. a grounded transmission shaft; 4. a first bidirectional clutch transmission gear; 5. a second bidirectional clutch transmission gear; 6. a slider; 7. a connecting rod can be surpassed; 8. a crank arm; 9. a shifting fork; 10. a spring; 11. a first motor; 12. a second motor; 13. a first drive gear; 14. a second drive gear; 15. a counterclockwise helicoid; 16. a reverse transmission gear face; 17. a reverse drive pin; 18. a clockwise helicoid; 19. a forward drive gear plane; 20. a forward drive pin; 21. a screw rod; 22. a bevel gear pair; 23. a chute; 24. a slide pin; 25. isolating the swing arm shaft; 26. a grounded swing arm shaft; 27. a pin shaft; 28. a connecting pin; 29. a clockwise helicoid; 30. a forward drive pin; 31. a counterclockwise helicoid; 32. a reverse drive pin; O-O, center line.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1 to 3
A three-station operating mechanism with an automatic clutch function after switching on and switching off operations are in place comprises a rack 1, wherein a pair of transmission shafts, namely an isolation transmission shaft 2 and a grounding transmission shaft 3, are transversely arranged on the upper portion of the rack. The front part of the transmission shaft is rotatably connected with a bidirectional clutch transmission gear which is axially matched with the transmission shaft in a sliding way and is driven by a driving mechanism, namely a first bidirectional clutch transmission gear 4 arranged on the isolation transmission shaft 2 and a second bidirectional clutch transmission gear 5 arranged on the grounding transmission shaft 3. The transmission shaft is correspondingly provided with a reverse transmission gear and a forward transmission gear which are matched with the bidirectional clutch transmission gear at the front side and the rear side of the bidirectional clutch transmission gear, so that the reverse rotation of the transmission shaft is realized when the bidirectional clutch transmission gear is matched with the reverse transmission gear, and the forward rotation of the transmission shaft is realized when the bidirectional clutch transmission gear is matched with the forward transmission gear. The two sides of the lower part of the rack are respectively provided with a slide block 6 which is driven by a transmission shaft through a transmission mechanism to lift and is used for switching on and off, and the front part of the slide block is connected with an overrunning connecting rod 7 with a sliding limiting structure in a sliding way, so that the slide block can rise a certain distance and then drive the overrunning connecting rod to rise or fall a certain distance and then drive the overrunning connecting rod to fall. The upper part of the overrunning connecting rod is hinged with the rear part of a crank arm 8, the middle part of the crank arm is rotationally connected with the frame and is fixed with a shifting fork 9 which drives the bidirectional clutch transmission gear to axially move along the transmission shaft, and the front part of the crank arm is provided with a spring 10 which inclines to the rear upper part of the upper part and is connected with the frame, so that the bidirectional clutch transmission gear is shifted through the matching of the spring and the shifting fork.
In this embodiment, in order to drive the bidirectional clutch transmission gear to rotate, the driving mechanism includes a first motor 11 and a second motor 12 horizontally mounted on the upper portion of the rack, a first driving gear 13 engaged with the first bidirectional clutch transmission gear 4 is mounted on an output shaft of the first motor 11, and a second driving gear 14 engaged with the second bidirectional clutch transmission gear 5 is mounted on an output shaft of the second motor 12, so as to drive the first bidirectional clutch transmission gear and the second bidirectional clutch transmission gear respectively.
In this embodiment, the reverse transmission gear comprises an anticlockwise helicoid 15 arranged on the front end face of the two-way clutch transmission gear, the head and the tail ends of the anticlockwise helicoid are connected through a vertical surface to form a reverse transmission gear face 16, and a reverse transmission pin 17 matched with the reverse transmission gear face to complete reverse transmission is fixed on the transmission shaft and positioned on the front side of the two-way clutch transmission gear. Therefore, after the bidirectional clutch transmission gear moves forwards, the transmission shaft is driven to rotate by the butting of the reverse transmission gear surface and the reverse transmission pin during the counterclockwise rotation, and the transmission shaft idles during the clockwise rotation.
In this embodiment, the forward transmission gear includes a clockwise helicoid 18 disposed on the rear end face of the bidirectional clutch transmission gear, the head and tail ends of the clockwise helicoid are connected via a vertical plane to form a forward transmission gear face 19, and a forward transmission pin 20 is fixed on the transmission shaft at the rear side of the bidirectional clutch transmission gear, and cooperates with the forward transmission gear face to complete forward transmission. Therefore, after the bidirectional clutch transmission gear moves forwards, the clockwise transmission gear face is abutted with the forward transmission pin to drive the transmission shaft to rotate when the bidirectional clutch transmission gear rotates clockwise, and the counterclockwise transmission gear face rotates anticlockwise and idles.
In another embodiment, referring to fig. 3, the first dual clutch transmission gear 4 is provided with a reverse transmission gear on the front side and a forward transmission gear on the rear side. The front side of the second bidirectional clutch transmission gear 5 is provided with a forward transmission gear, and the rear side is provided with a reverse transmission gear. At this time, the front end of the first bidirectional clutch transmission gear 4 is a counterclockwise spiral surface 15, the corresponding transmission pin is a reverse transmission pin 17, the rear end of the first bidirectional clutch transmission gear 4 is a clockwise spiral surface 18, and the corresponding transmission pin is a forward transmission pin 20. The front end of the second bidirectional clutch transmission gear 5 is a clockwise helicoid 29, the corresponding transmission pin is a forward transmission pin 30, the rear end of the second bidirectional clutch transmission gear 5 is a counterclockwise helicoid 31, and the corresponding transmission pin is a reverse transmission pin 32.
In this embodiment, the transmission mechanisms include a screw rod 21 vertically disposed on the lower side of the rear portion of the east transmission shaft, the upper and lower portions of the screw rod are rotatably connected to the frame, the upper end of the screw rod is rotatably connected to the rear portion of the transmission shaft through a bevel gear pair 22, and the slider is fixedly connected to a nut seat mounted on the screw rod, so that the slider is driven to move up and down by the rotation of the screw rod.
In this embodiment, in order to realize the limit of the sliding block and the overrunning connecting rod in sliding fit, the sliding limit structure comprises a sliding groove 23 vertically arranged on the overrunning connecting rod, the front part of the sliding block is fixed with a sliding pin 24 through a connecting piece, and the sliding pin is a stud pin. The sliding pin is in sliding fit with the sliding groove, so that the overrunning connecting rod is driven to move downwards when the sliding pin is abutted to the lower end of the sliding groove, and the overrunning connecting rod is driven to ascend when the sliding pin is abutted to the upper end of the sliding groove, so that the crank arm is driven to swing.
In this embodiment, the lower sides of the bidirectional clutch transmission gears on the rack are rotatably connected with swing arm shafts which are longitudinally arranged, namely an isolation swing arm shaft 25 and a grounding swing arm shaft 26. The middle part of the crank arm is fixedly connected with one end part of the swing arm shaft, and the shifting fork is fixedly connected with the other end part of the swing arm shaft. The lower part of the spring is hooked on a pin 27 at the front part of the crank arm, and the upper part of the spring is hooked on a connecting pin 28 arranged on the frame. The line between the center of the connecting pin 28 and the center of the swing arm shaft forms a center line O-O.
In this embodiment, the middle part and the end of the transmission shaft are rotatably connected with the frame through a bearing.
The working principle is as follows:
as shown in FIG. 1: the mechanism is positioned at an isolation brake-separating station, the sliding block (left side) is positioned at the lower end, the first bidirectional clutch transmission gear 4 is in a state of being meshed with the forward transmission pin 20, a forward transmission gear is hung, the first bidirectional clutch transmission gear 4 can only drive the isolation transmission shaft 2 to rotate clockwise, and idling is realized when the first bidirectional clutch transmission gear rotates anticlockwise. At the moment, the first motor 11 rotates positively to drive the corresponding lead screw 21 to enable the slide block 6 to move upwards, the slide block 6 abuts against the upper end of the sliding groove 23 through the sliding pin, so that the overrunning connecting rod 7 pushes the crank arm 8 to rotate clockwise, and the crank arm 8 drives the spring 10 to swing clockwise. When the sliding block 6 reaches a top dead center, the isolation switch-on operation is completed, at the moment, after the spring 10 swings clockwise to exceed a central line O-O, the overrunning motion is realized, the spring 10 pushes the connecting lever 8 to continue to rotate clockwise, the connecting lever 8 drives the swing arm shaft 25 to rotate clockwise, the swing arm shaft 25 drives the shifting fork 9, the shifting fork 9 is embedded in the annular groove of the first bidirectional clutch transmission gear 4, the first bidirectional clutch transmission gear 4 is shifted to a position where the first bidirectional clutch transmission gear is engaged with the reverse transmission pin 17, the reverse transmission gear is hung, the first bidirectional clutch transmission gear 4 can only drive the clutch transmission shaft 2 to rotate anticlockwise at the moment, and the isolation switch-off transmission preparation is completed. When the first motor 11 rotates reversely to drive the screw 21 to move the slider 6 downward to the bottom dead center, the isolation and brake-separating operation is completed, and the first bidirectional clutch transmission gear 4 is restored to be in a state of being meshed with the forward transmission pin 20.
In this principle, reference is made to fig. 3. When the mechanism is in a middle station, the first bidirectional clutch transmission gear 4 is meshed with the forward transmission pin 20, the second bidirectional clutch transmission gear 5 is meshed with the corresponding forward transmission pin 20, and in this state, the first bidirectional clutch transmission gear 4 rotates clockwise to realize isolation switching-on, realize switching-off in place and rotate anticlockwise to realize idle rotation protection. The second bidirectional clutch transmission gear 5 rotates anticlockwise to achieve grounding closing and clockwise rotation idling protection. When the grounding switch-on is completed, the second bidirectional clutch transmission gear 5 is meshed with the forward transmission pin 32, the forward transmission gear is hung, the grounding switch-off transmission preparation is completed, and at the moment, the grounding switch-on in-place idling protection is realized
When the terms "first", "second", etc. are used to define the components of the present invention, those skilled in the art will understand that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.
The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be formed by a plurality of solitary component parts equipment, also can be for the solitary part that the integrated into one piece technology made out.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (7)
1. The utility model provides a three-station operating device with close, automatic separation and reunion function behind the switching-on operation targets in place, includes the frame, its characterized in that, frame upper portion transversely is provided with a pair of transmission shaft, the front portion of transmission shaft all rotates to be connected with rather than sliding fit and by actuating mechanism driven two-way clutch drive gear, and the preceding, rear side correspondence that lie in two-way clutch drive gear on the transmission shaft is provided with reverse transmission gear and the forward drive gear with two-way clutch drive gear matched with, the lower part both sides of frame all are provided with by the transmission shaft through the slider of drive mechanism drive lift and be used for closing, switching-on operation, the anterior sliding connection of slider has the connecting rod that can surmount that has slip limit structure, the upper portion that can surmount the connecting rod all articulates with the rear portion of a turning arm, turning arm middle part is connected with the frame rotation and is fixed with the shift fork that drives two-way clutch drive gear along transmission shaft axial displacement, and the spring that upper portion slant rear top and be connected with the frame is all installed to the front portion of turning arm.
2. The three-station operating mechanism with the automatic clutch function after the switching-on and switching-off operations are in place according to claim 1, wherein the reverse transmission gear comprises an anticlockwise spiral surface arranged on the front end surface of the bidirectional clutch transmission gear, the head end and the tail end of the anticlockwise spiral surface are connected through a vertical surface to form a reverse transmission gear surface, and a reverse transmission pin which is matched with the reverse transmission gear surface to complete reverse transmission is fixed on the transmission shaft at the front side of the bidirectional clutch transmission gear.
3. The three-station operating mechanism with the automatic clutch function after the brake closing and opening operations are in place according to claim 1 or 2, wherein the forward transmission gear comprises a clockwise spiral surface arranged on the rear end surface of the bidirectional clutch transmission gear, the head end and the tail end of the clockwise spiral surface are connected through a vertical surface to form a forward transmission gear surface, and a forward transmission pin matched with the forward transmission gear surface to complete forward transmission is fixed on the transmission shaft at the rear side of the bidirectional clutch transmission gear.
4. The three-station operating mechanism with the function of automatic clutch after switching on and off in place according to claim 1, wherein the transmission mechanism comprises a vertically arranged screw rod, the upper part and the lower part of the screw rod are rotatably connected with the frame, the upper end of the screw rod is in transmission connection with the rear part of the transmission shaft through a bevel gear pair, and the sliding block is fixedly connected with a nut seat arranged on the screw rod.
5. The three-position operating mechanism with the function of automatically clutching after switching on and off in place according to claim 1, 2 or 4, wherein the sliding limiting structure comprises a sliding groove vertically arranged on the overrunning connecting rod, a sliding pin is fixed at the front part of the sliding block through a connecting piece, and the sliding pin is in sliding fit with the sliding groove.
6. The three-station operating mechanism with the automatic clutch function after the switching-on and switching-off operations are in place according to claim 1, characterized in that the lower sides of the bidirectional clutch transmission gears on the rack are rotatably connected with swing arm shafts which are longitudinally arranged, the middle parts of the crank arms are fixedly connected with one end parts of the swing arm shafts, and the shifting forks are fixedly connected with the other end parts of the swing arm shafts.
7. The three-station operating mechanism with the automatic clutch function after the switching-on and switching-off operations are in place according to claim 1, 2, 4 or 6, characterized in that the driving mechanisms respectively comprise motors transversely arranged at the upper parts of the racks, and driving gears meshed with the bidirectional clutch transmission gears are arranged on output shafts of the motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222556604.7U CN218730607U (en) | 2022-09-27 | 2022-09-27 | Three-station operating mechanism with automatic clutch function after switching-on and switching-off operation in place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222556604.7U CN218730607U (en) | 2022-09-27 | 2022-09-27 | Three-station operating mechanism with automatic clutch function after switching-on and switching-off operation in place |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218730607U true CN218730607U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222556604.7U Active CN218730607U (en) | 2022-09-27 | 2022-09-27 | Three-station operating mechanism with automatic clutch function after switching-on and switching-off operation in place |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218730607U (en) |
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2022
- 2022-09-27 CN CN202222556604.7U patent/CN218730607U/en active Active
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