CN107706035B - Manual and electric three-station mechanism with brake separating and tripping functions - Google Patents
Manual and electric three-station mechanism with brake separating and tripping functions Download PDFInfo
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- CN107706035B CN107706035B CN201711029187.8A CN201711029187A CN107706035B CN 107706035 B CN107706035 B CN 107706035B CN 201711029187 A CN201711029187 A CN 201711029187A CN 107706035 B CN107706035 B CN 107706035B
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- tripping
- grounding
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- isolation
- energy storage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/227—Interlocked hand- and power-operating mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a manual and electric integrated three-station mechanism with a brake separating release, which comprises a rack, wherein an isolating transmission device, an isolating output device, a grounding transmission device, a grounding output device, an energy storage device, an electric driving device and a brake separating release device are arranged on the rack, the brake separating release device is linked with the isolating transmission device, the isolating transmission device drives the energy storage device to store energy, when the energy storage device rotates through a maximum energy storage position, the stored energy is released to drive the isolating transmission device to continuously rotate to output a closing torque, the brake separating release device rotates along with the rotation and stores energy, and after the energy storage state of the brake separating release device is relieved, the isolating transmission device can be driven to reversely rotate by the isolating transmission device to realize isolating operation. The grounding transmission device rotates to drive the energy storage device to store energy, and when the energy storage device rotates past the maximum energy storage position, the energy storage is released to drive the grounding transmission device to continue rotating and output grounding torque. The invention has reasonable and reliable structural design, high stability and long service life.
Description
Technical Field
The invention relates to an operating mechanism of a load switch, in particular to a manual and electric integrated three-station mechanism with a brake separating trip.
Background
The load switch is used for realizing the connection and disconnection of a circuit through the opening and closing actions of the contacts, and the opening and closing actions of the contacts are realized through an operating mechanism of the load switch. The current common operating mechanism is a three-position operating mechanism. The three stations of the three-station mechanism are very clear, the isolation station is arranged in the middle, the closing station and the grounding station are respectively arranged at two ends, and the isolation, closing and grounding states of the load switch can be realized through the operation of the three-station mechanism. The existing three-position mechanism is generally complex in structure, unstable in performance and high in manufacturing cost, so that the structure of the three-position mechanism needs to be improved.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a manual and electric integrated three-station mechanism with a brake separating trip, which has a reliable structure and stable performance.
The technical scheme adopted by the invention for solving the technical problem is as follows: a manual and electric integrated three-station mechanism with an opening tripping device comprises a frame, wherein an isolation transmission device, an isolation output device, a grounding transmission device, a grounding output device, an energy storage device, an electric driving device and an opening tripping device are arranged on the frame, the electric driving device is connected with and drives the isolation transmission device in a one-way input mode, the isolation transmission device is connected with one end of the energy storage device and can rotate under the driving of manual input or motor driving so as to drive the energy storage device to store energy, when the energy storage device rotates to the maximum energy storage position, the energy storage device is released to drive the isolation transmission device to continue rotating, the isolation transmission device can drive the isolation output device to rotate to output a closing torque, in the process of outputting the closing torque by the isolation transmission device, the opening tripping device rotates along with the energy storage device and stores energy, after the energy storage state of the opening tripping device is relieved by external force, the separating brake tripping device can drive the isolating output device to reversely rotate through the isolating transmission device to realize isolating operation, the grounding transmission device is connected with the other end of the energy storage device and can rotate under the driving of external force so as to drive the energy storage device to store energy, when the energy storage device rotates to the maximum energy storage position, the energy storage is released to drive the grounding transmission device to continuously rotate, the grounding transmission device can drive the grounding output device to rotate to output grounding torque, when the isolating transmission device rotates, the grounding transmission device is in a grounding initial state, and when the grounding transmission device rotates, the isolating transmission device is in a closing initial state.
Furthermore, the isolation transmission device comprises an isolation transmission shaft, two ends of the isolation transmission shaft are rotatably mounted on the rack, the output end of the isolation transmission device is connected with the isolation output device, an isolation transmission crank arm capable of rotating along with the isolation transmission shaft is arranged on the isolation transmission shaft, the isolation transmission crank arm is linked with the energy storage device and can drive the energy storage device to store energy when the isolation transmission shaft rotates, the isolation output device is driven to rotate when the energy storage device releases energy, and an isolation transmission pin is arranged at the free end of the isolation transmission crank arm; keep apart output device including installing at the output of keeping apart the transmission shaft and can keep apart the output connecting lever and with the isolation linkage connecting lever of keeping apart the output connecting lever linkage of transmission shaft pivoted, keep apart the outside of linkage connecting lever and be equipped with and hold and keep apart the transmission groove that the transmission pin is gliding wherein, keep apart the both ends of transmission groove and have the spacing arc of keeping apart with keeping apart the transmission pin matching.
The tripping device comprises a tripping mechanism plate, a tripping tension spring, a tripping shaft, a tripping limit crank and a tripping linkage crank, wherein the tripping shaft is rotatably installed on the rack through the tripping mechanism plate, the tripping limit crank and the tripping linkage crank are fixedly connected together and rotatably installed on the isolation transmission shaft, a tripping pin is arranged between the tripping limit crank and the tripping linkage crank, one end of the tripping tension spring is rotatably hung on the tripping pin, the other end of the tripping tension spring is rotatably installed on the mechanism plate through a pin, the tripping linkage crank can be linked with the isolation transmission device to store energy or drive the linkage transmission device to rotate reversely when the energy is stored, the tripping device further comprises a tripping energy storage retaining device in a tripping energy storage state, and the tripping energy storage retaining device acts on the tripping limit crank and keeps the tripping tension spring in the energy storage state.
Further, the linkage relation between the tripping linkage crank arm and the isolation transmission device is as follows: the tripping device comprises a tripping linkage crank arm, an isolating transmission shaft, an energy storage device, a tripping tension spring, a tripping linkage crank arm and an isolating transmission pin, wherein the tripping linkage crank arm is provided with a tripping limit arc matched with the isolating transmission pin, when the isolating transmission shaft rotates under the driving of external force to drive the energy storage device to store energy, the isolating transmission pin abuts against the tripping limit arc and drives the tripping linkage crank arm and the tripping limit crank arm to rotate through the tripping limit arc, so that the tripping tension spring stretches to store energy for tripping, when the tripping energy storage state is relieved, the tripping tension spring releases energy to drive the tripping linkage.
Furthermore, the tripping energy storage retaining device comprises a half-shaft notch arranged on the tripping shaft and matched with the tripping limit crank arm and a reset torsion spring sleeved on the tripping shaft, one end of the reset torsion spring is hung on the tripping shaft, the other end of the reset torsion spring is fixed on a tripping mechanism plate, when the tripping linkage crank arm and the tripping limit crank arm are driven by the isolation transmission pin to rotate, the outer end of the tripping limit crank arm stirs the tripping shaft through the half-shaft notch to rotate, when the tripping limit crank arm rotates to be separated from interference with the tripping shaft, the tripping shaft resets under the action of the reset torsion spring, and the arc at the back of the half-shaft notch limits the tripping limit crank arm in a stretching state of the tripping tension spring, so that energy storage retaining is realized; the tripping energy storage keeping device further comprises a tripping unlocking device for unlocking the tripping energy storage state, the tripping unlocking device comprises a tripping plate and a connecting plate capable of pushing the tripping plate to rotate, the tripping plate is mounted on the tripping shaft and can drive the tripping shaft to rotate, the connecting plate is hung on the rack and can move in a certain range to push against or loosen the tripping plate, when the connecting plate pushes against the tripping plate, the tripping plate drives the tripping shaft to rotate, and the tripping limiting crank arm is released to realize tripping unlocking.
Further, electric drive device is including installing the driving motor in the frame, electric output connecting lever passes through one-way bearing and rotationally installs on driving motor's output shaft, electric connecting rod is rotationally connected to electric output connecting lever's free end, electric drive device still includes the electric drive connecting lever, be equipped with the rotational pin on the electric drive connecting lever, electric connecting rod and this rotational pin rotatable coupling, thereby drive electric drive connecting lever rotates, the electric drive connecting lever is rotationally installed on keeping apart the transmission shaft, the outer fringe of electric drive connecting lever is equipped with the outer fringe groove with keeping apart the transmission round pin and match.
Furthermore, the grounding transmission device comprises a grounding transmission shaft, two ends of the grounding transmission shaft are rotatably arranged on the rack, the output end of the grounding transmission device is connected with the grounding output device, a grounding transmission crank arm capable of rotating along with the grounding transmission shaft is arranged on the grounding transmission shaft, the grounding transmission crank arm is linked with the energy storage device and can drive the energy storage device to store energy when the grounding transmission shaft rotates, the energy storage device releases energy to drive the grounding output device to rotate, and a grounding transmission pin is arranged at the free end of the grounding transmission crank arm; the grounding output device comprises a grounding output crank arm which is arranged at the output end of the grounding transmission shaft and can rotate around the grounding transmission shaft and a grounding linkage crank arm linked with the grounding output crank arm, a grounding transmission groove which can accommodate a grounding transmission pin to slide in the grounding transmission groove is arranged at the rotating end of the grounding linkage crank arm, and two ends of the grounding transmission groove are provided with grounding limit arcs matched with the grounding transmission pin.
Furthermore, when the load switch is in an isolation state, the grounding transmission pin is located at a grounding starting end of the grounding transmission groove, when the grounding transmission device is driven by external force to rotate to the maximum energy storage position of the energy storage device, the grounding transmission pin is located at a grounding starting end of the grounding transmission groove, and when the energy storage device releases energy storage and drives the grounding transmission device to continue rotating, the grounding transmission pin drives the grounding linkage crank arm to rotate through a grounding limiting arc of the grounding starting end, so that the grounding output crank arm is driven to rotate to output grounding torque.
Furthermore, energy memory includes the energy storage pressure spring, and the both ends of energy storage pressure spring are equipped with the pressure spring head, and the pressure spring head rotationally connects respectively on keeping apart transmission and ground connection transmission, is equipped with the telescopic link between the pressure spring head, and the telescopic link can be compressed and the shrink along with the pressure spring.
Furthermore, the three-station mechanism also comprises an interlocking mechanism of an isolation transmission device and a grounding transmission device, the interlocking mechanism comprises an interlocking hanging plate, the interlocking hanging plate is hung on the rack through a waist-shaped hole, two ends of the interlocking hanging plate are respectively hung at the input ends of an isolation transmission shaft of the isolation transmission device and a grounding transmission shaft of the grounding transmission device through interlocking holes with gaps, and the input ends of the isolation transmission shaft and the grounding transmission shaft are respectively provided with a notch matched with the gap of the interlocking hole; the interlocking relation of interlocking link plate and isolation transmission shaft and ground connection transmission shaft is: when isolation transmission and ground connection transmission all are in the isolated state, the incision of isolation transmission and ground connection transmission all faces the breach of interlocking hole, interlocking link plate is in the pine and takes off the state this moment, when one of them rotation of isolation transmission and ground connection transmission is closed a floodgate or the ground connection position, the breach of the corresponding interlocking hole of arc surface jack-up of its input for the incision of another device is spacing with the breach laminating in the interlocking hole that corresponds, thereby realize only when two devices are in the isolated state, just can carry out the operation of closing a floodgate or ground connection.
The invention has the beneficial effects that: the invention realizes that power is provided for the isolation operation and the grounding operation of the load switch through the energy storage device with a single spring structure, the energy storage power of the energy storage device can be from manual external force or can be completed through an electric driving structure equipped by the mechanism, and the electric structure and the manual structure are not interfered with each other. In addition, the isolation operation device and the grounding operation device can realize interlocking, ensure that the three-station mechanism can carry out switching-on or grounding operation only in an isolation state, and prevent the operation of grounding during switching-on or switching-on during grounding.
Drawings
Fig. 1 is an isometric view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic diagram of the operation of the present invention.
Fig. 4 is a schematic diagram of the present invention after the opening release device is hidden.
Fig. 5 is a schematic view of an interlock device of the present invention.
Fig. 6 is an enlarged view of the isolated output device.
Fig. 7 is an enlarged view of the ground output device.
Fig. 8 is an enlarged view of the engagement of the trip shaft and the trip limit crank arm.
Reference numbers in the figures: 1-a first mechanism plate, 2-a second mechanism plate, 3-a support, 4-an isolation transmission shaft, 5-an isolation transmission crank arm, 6-an isolation transmission pin, 7-an isolation output crank arm, 8-an isolation linkage crank arm, 9-an isolation transmission groove, 10-an isolation limit arc, 11-an isolation starting end, 12-an isolation starting end, 13-a grounding transmission shaft, 14-a grounding transmission crank arm, 15-a grounding transmission pin, 16-a grounding output crank arm, 17-a grounding linkage crank arm, 18-a grounding transmission groove, 19-a grounding limit arc, 20-a grounding starting end, 21-a grounding starting end, 22-an energy storage pressure spring, 23-a pressure spring head, 24-a driving motor, 25-a telescopic rod, 26-an interlocking hanging plate and 27-a kidney-shaped hole, 28-limit nail, 29-interlocking hole, 30-notch, 31-motor output shaft, 32-electric output crank arm, 33-one-way bearing, 34-electric connecting rod, 35-rotating pin, 36-L-shaped bend, 37-electric transmission crank arm, 38-tripping mechanism plate, 39-tripping tension spring, 40-tripping shaft, 41-tripping limit crank arm, 42-tripping linkage crank arm, 43-tripping pin, 44-tripping limit arc, 45-half shaft notch, 46-reset torsion spring, 47-tripping plate and 48-connecting plate.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
A manual and electric integrated three-station mechanism with an opening tripping device comprises a frame, wherein an isolation transmission device, an isolation output device, a grounding transmission device, a grounding output device, an energy storage device, an electric driving device and an opening tripping device are arranged on the frame, the electric driving device is connected with and drives the isolation transmission device in a one-way input mode, the isolation transmission device is connected with one end of the energy storage device and can rotate under the driving of manual input or motor driving so as to drive the energy storage device to store energy, when the energy storage device rotates to the maximum energy storage position, the energy storage device is released to drive the isolation transmission device to continue rotating, the isolation transmission device can drive the isolation output device to rotate to output a closing torque, in the process of releasing the energy storage, the opening tripping device rotates along with the energy storage device and stores energy, after the energy storage state of the opening tripping device is released through external force, the separating brake tripping device can drive the isolation output device to reversely rotate through the isolation transmission device to realize isolation operation.
The grounding transmission device is connected with the other end of the energy storage device and can rotate under the driving of external force so as to drive the energy storage device to store energy, when the energy storage device rotates to the maximum energy storage position, the energy storage is released to drive the grounding transmission device to continue rotating, and at the moment, the grounding transmission device can drive the grounding output device to rotate to output grounding torque.
Since the switching-on or grounding operation is only safe when the load switch is in the isolation state, that is, only the isolation-switching-on or isolation-grounding operation is allowed, and the switching-on-grounding or grounding-switching-on operation is not allowed, when the isolation transmission device rotates, the grounding transmission device is in the grounding initial state, and when the grounding transmission device rotates, the isolation transmission device is in the switching-on initial state.
As shown in fig. 2, the rack includes a first mechanism board 1 at the operation output end and a second mechanism board 2 at the operation input end, a load switch is disposed outside the first mechanism board 1, and the first mechanism board 1 and the second mechanism board 2 are fixedly mounted together by a support 3, and generally, the first mechanism board 1 and the second mechanism board 2 are disposed in parallel.
As shown in fig. 1-2, the isolation transmission device includes an isolation transmission shaft 4, an input end of the isolation transmission shaft 4 is rotatably mounted on the second mechanism plate 2 through a rotating bearing, an output end of the isolation transmission shaft 4 is rotatably mounted on the first mechanism plate 1 through a rotating bearing, an input end of the isolation transmission shaft 4 extends out of the second mechanism plate 2, an isolation transmission crank arm 5 capable of rotating along with the isolation transmission shaft 4 is arranged on the isolation transmission shaft 4, and an isolation transmission pin 6 is arranged at a free end of the isolation transmission crank arm 5.
As shown in fig. 5, the isolation output device comprises an isolation output crank arm 7 which is installed at the output end of the isolation transmission shaft 4 and can rotate around the isolation transmission shaft 4 and an isolation linkage crank arm 8 linked with the isolation output crank arm 7, an isolation transmission groove 9 which can accommodate the isolation transmission pin 6 to slide in the isolation transmission groove is arranged on the outer side of the isolation linkage crank arm 8, and isolation limit arcs 10 matched with the isolation transmission pin 6 are arranged at the two ends of the isolation transmission groove 9.
As shown in fig. 3, when the load switch is in the isolated state, the isolation transmission pin 6 is located at the isolation start end 11 of the isolation transmission groove 9, when the isolation transmission shaft 4 rotates under the driving of an external force, the isolation transmission crank arm 5 drives the isolation transmission pin 6 to rotate therewith, and the isolation transmission device drives the energy storage device to store energy, in the process, the isolation transmission pin 6 slides along the isolation transmission groove 9 without interfering with the isolation linkage crank arm 8, when the energy storage device reaches the maximum energy storage position by rotating, the isolation transmission pin 6 is located at the isolation end 12 of the start transmission groove 9, at this time, the external force is removed, the mechanism continues to rotate under the inertia effect, so that when the energy storage device rotates through the maximum energy storage position, (or the energy storage release can be realized as long as the energy storage device slightly rotates through the maximum energy storage position of the energy storage device under the external force effect, thereby releasing the stored energy and driving the isolation transmission shaft 4 to continue to rotate, in the process of continuing to rotate, the isolation transmission pin 6 props against the isolation starting end 12 of the isolation linkage crank arm 8, and the isolation linkage crank arm 8 is driven to rotate through the isolation limiting arc 10 of the isolation starting end 12, so that the isolation output crank arm 7 is driven to rotate to output the closing torque to the load switch.
When the isolation transmission device performs closing operation, the grounding transmission device is in an isolation state.
The invention also provides an electric driving device, wherein the electric driving device is mainly used for driving the isolation transmission device to carry out the closing operation, and the grounding operation needs to be considered with higher safety, so that the electric driving mode is not adopted for the grounding operation.
Specifically, as shown in fig. 1-2, the electric driving device includes a driving motor 24 mounted on the frame, the driving motor 24 outputs electric power through a motor output shaft 31, an electric output crank arm 32 is rotatably mounted on the motor output shaft 31 through a one-way bearing 33, the one-way bearing 33 is used for driving the electric output crank arm 32 to rotate through the motor output shaft 31 by the driving motor 24, the electric output crank arm 32 cannot drive the motor output shaft 31 to rotate, so as to protect the motor, and avoid inconvenience in use caused by the fact that manual operation needs to overcome the steering force of the motor due to linkage relation under the condition of manual operation.
The free end of the electric output crank arm 32 is rotatably connected with an electric connecting rod 34, the electric driving device also comprises an electric transmission crank arm 37, the electric transmission crank arm 37 is provided with a rotating pin 35, the electric connecting rod 34 is rotatably connected with the rotating pin 35 so as to drive the electric transmission crank arm 37 to rotate, the electric transmission crank arm 37 is rotatably arranged on the isolation transmission shaft 4, the outer edge of the electric transmission crank arm 37 is provided with an outer edge groove matched with the isolation transmission pin 6, when the electric transmission crank arm 37 rotates along with the driving of the electric connecting rod 34 under the driving action of a motor, the outer edge groove drives the isolation transmission pin 6 to rotate along with the motor, so as to drive the isolation transmission shaft 4 to rotate for storing energy, in the process, the isolation transmission pin 6 is always positioned at one end of the outer edge groove, the shape of the whole outer edge groove is matched with the isolation transmission groove 9 on the isolation linkage crank arm 8, so that the outer edge groove and the isolation transmission groove 9 are positioned at the same, the existence of the outer edge groove can not influence the movement of the isolation transmission pin 6 in the isolation transmission groove 9, and the movement of the isolation transmission pin 6 in the isolation transmission groove 9 can not cause interference to the position of the electric transmission crank arm 37, so that the manual and electric integration and mutual noninterference are realized, and the later steps are consistent with the manual mode. It should be noted that, because the rotation range of the isolating linkage connecting lever 8 is limited by the preset arc hole on the first mechanism board 1, it can not do the rotation in the whole range, but only rotate in the range of a fan angle, because of the linkage relationship, the range of the isolating transmission shaft 4 and the electric transmission connecting lever 37 is also limited in this range, in the manual mode, the angle of the manual rotation can be controlled, and in the electric mode, it needs to be designed reasonably, for example, the electric connecting rod 34 has an L-shaped bend, which is close to the end where the electric connecting rod 34 is connected with the electric output connecting lever 32, when the motor rotates, because of the bend, the end where the electric connecting rod 34 is connected with the electric transmission connecting lever 37 only rotates in a certain range, which is consistent with the rotation range of the isolating linkage connecting lever 8 allowed by the preset arc hole on the first mechanism board 1, this will not cause interference inside the mechanism during rotation, and also protect the mechanism.
The three-station mechanism is provided with the opening tripping device, and the opening tripping device has the function that when the load switch performs closing operation, energy can be stored for the opening tripping device, and then the opening operation of the load switch in reverse rotation can be started by the opening tripping device.
As shown in fig. 1-2, the opening trip device comprises a trip mechanism plate 38 and a trip tension spring 39, the tripping device comprises a tripping shaft 40, a tripping limit crank arm 41 and a tripping linkage crank arm 42, wherein the tripping shaft 43 is rotatably installed on the second mechanism plate 2 through a tripping mechanism plate 38, the tripping limit crank arm 41 and the tripping linkage crank arm 42 are fixedly connected together and rotatably installed on the isolation transmission shaft 4, a tripping pin 43 is arranged between the tripping limit crank arm 41 and the tripping linkage crank arm 42, one end of a tripping tension spring 39 is rotatably hung on the tripping pin 43, the other end of the tripping tension spring is rotatably installed on the second mechanism plate 2 through a pin, the tripping linkage crank arm 42 can be linked with the isolation transmission device to store energy or drive the linkage transmission device to rotate reversely when the stored energy is released, the brake separating tripping device further comprises a tripping energy storage retaining device in a tripping energy storage state, and the tripping energy storage retaining device acts on the tripping limit crank arm 41 and keeps the tripping tension spring 39 in the energy storage state.
As shown in fig. 3, the tripping linkage crank arm 42 and the isolation transmission device are in linkage relation: the tripping linkage crank arm 42 is provided with a tripping limit arc 44 matched with the isolation transmission pin 6, when the isolation transmission shaft 4 is driven by external force to rotate to drive the energy storage device to store energy, the isolation transmission pin 6 pushes against the tripping limit arc 44 and drives the tripping linkage crank arm 42 and the tripping limit crank arm 41 to rotate through the tripping limit arc 44, so that the tripping tension spring 39 is stretched to store energy for tripping, when the tripping energy storage state is relieved, the tripping tension spring 39 releases the stored energy to drive the tripping linkage crank arm 42 to rotate, at the moment, the tripping limit arc 44 drives the isolation transmission shaft 4 to rotate reversely through the isolation transmission pin 6, and isolation (brake separating) operation is realized.
After the tripping tension spring 39 is stretched, the tripping tension spring can be kept in an energy storage state under the condition of no external force, and the function is realized by a tripping energy storage keeping device, as shown in fig. 8, the tripping energy storage keeping device comprises a half shaft notch 45 which is arranged on a tripping shaft 40 and matched with the outer end of a tripping limit connecting lever 41, and a reset torsion spring 46 which is sleeved on the tripping shaft 40, one end of the reset torsion spring 46 is hung on the tripping shaft 40, the other end of the reset torsion spring is fixed on a tripping mechanism plate 38, when the tripping linkage connecting lever 42 and the tripping limit connecting lever 41 are driven by an isolation transmission pin 6 to rotate, the outer end of the tripping limit connecting lever 41 just passes through the half shaft notch 45, in the rotating process, the outer end of the tripping limit connecting lever 41 is always kept in contact with the tangent plane of the half shaft notch 45, so that the tripping shaft 40 is shifted to rotate through the half shaft notch 45, and when the tripping limit connecting lever 41 rotates to be separated from the interference, the trip shaft 40 is reset under the action of the reset torsion spring 46, and the arc at the back of the half shaft notch 45 limits the trip limit crank arm 41 in the stretching state of the trip tension spring 39, so that the energy storage keeping is realized.
The energy storage state of the tripping tension spring 39 can be unlocked by external force, and this function can be realized by a tripping unlocking device, the tripping unlocking device includes a tripping plate 47 and a tripping link plate 48 capable of pushing the tripping plate 47 to rotate, the tripping plate 47 is installed on the tripping shaft 40 and can drive the tripping shaft 40 to rotate, the tripping link plate 48 is hung on the second mechanism plate 2 and can move in a certain range, for example, as shown in fig. 4, a kidney-shaped hole is arranged on the tripping link plate 48, the kidney-shaped hole is hung on the second mechanism plate 2 through a pin, when the tripping link plate 48 is jacked up, the upper end jacks up one end of the tripping plate 47 to drive the tripping plate 47 to rotate, so that the tripping shaft 40 rotates to the outer end of the half shaft notch 45 facing the tripping limit crank arm 41, at this time, the limit state of the tripping limit crank arm 41 is released, unlocking is realized, after unlocking, under the restoring force of the tripping tension spring 39, the tripping limit crank arm 41 and the tripping linkage crank arm 42 synchronously rotate, and the tripping limit arc 44 drives the isolation transmission pin 6 to reversely rotate, so that the isolation transmission shaft 4 is driven to reversely rotate, and isolation (brake opening) operation is realized.
In the case of an electric drive mode, the opening tripping device adopts the same principle to provide power for the reverse rotation of the isolation transmission device.
As shown in fig. 1-2, the grounding transmission device includes a grounding transmission shaft 13, an input end of the grounding transmission shaft 13 is rotatably mounted on the second mechanism board 2 through a rotating bearing, an output end thereof is rotatably mounted on the first mechanism board 1 through a rotating bearing, the grounding transmission shaft 13 is provided with a grounding transmission crank arm 14 capable of rotating therewith, and a free end of the grounding transmission crank arm 14 is provided with a grounding transmission pin 15.
As shown in fig. 6, the ground output device includes a ground output crank arm 16 mounted at the output end of the ground transmission shaft 13 and capable of rotating 13 around the ground transmission shaft, and a ground linkage crank arm 17 linked with the ground output crank arm 16, wherein a rotating end of the ground linkage crank arm 17 is provided with a ground transmission groove 18 capable of accommodating the ground transmission pin 15 to slide therein, and two ends of the ground transmission groove 18 are provided with ground limiting arcs 19 matched with the ground transmission pin 15.
As shown in fig. 3, when the load switch is in the isolated state, the grounding transmission pin 15 is located at the grounding start end 20 of the grounding transmission slot 18, when the grounding transmission shaft 13 is driven by an external force to rotate, the grounding transmission crank 14 drives the grounding transmission pin 15 to rotate therewith, and the grounding transmission device drives the energy storage device to store energy in the opposite direction to the closing state, in this process, the grounding transmission pin 15 slides along the grounding transmission slot 18 without interfering with the grounding linkage crank 17, when the energy storage device reaches the maximum energy storage position by rotating, the external force is removed, the mechanism will continue to rotate under the inertia effect to make the energy storage device rotate through the maximum energy storage position, (or the inertia is not utilized, the energy storage release can be realized as long as the energy storage device slightly rotates through the maximum energy storage position of the energy storage device under the external force), the grounding transmission pin 15 will push against the grounding start end 21 of the grounding transmission slot 18, and the grounding linkage crank arm 17 is driven to rotate by a grounding limit arc 19 of a grounding starting end 21, so that the grounding output crank arm 16 is driven to rotate to output grounding torque to the load switch.
When the grounding transmission device performs grounding operation, the isolation transmission device is in an isolation state.
The energy storage device adopts a compressed spring energy storage device, and comprises an energy storage compressed spring 22, wherein two ends of the energy storage compressed spring 22 are provided with compressed spring heads 23, the compressed spring heads 23 are respectively and rotatably connected to an isolation transmission pin 6 and a grounding transmission pin 15, a telescopic rod 25 is arranged between the compressed spring heads 23, and the telescopic rod 25 can be contracted along with the compression of the energy storage compressed spring 22.
As shown in fig. 4, the three-station mechanism of the present invention further includes an interlocking device of the isolation transmission device and the ground transmission device, the interlocking device includes an interlocking hanging plate 26, the interlocking hanging plate 26 is hung on the outer surface of the second mechanism plate 2 through two waist-shaped holes 27, a limit nail 28 matched with the waist-shaped hole 27 is arranged on the outer surface of the second mechanism plate 2, two ends of the interlocking hanging plate 26 are respectively hung on the input ends of the isolation transmission shaft 4 and the ground transmission shaft 13 through an interlocking hole 29 with a notch, and the input ends of the isolation transmission shaft 4 and the ground transmission shaft 13 are respectively provided with a notch 30 matched with the notch of the interlocking hole 29; the interlocking mode of the interlocking hanging plate 26, the isolation transmission shaft 5 and the grounding transmission shaft 13 is as follows: when the isolation transmission device and the grounding transmission device are both in an isolation state, the notches 30 of the isolation transmission shaft 4 and the grounding transmission shaft 13 face the notches of the interlocking holes 29, at the moment, the interlocking hanging plate 26 is in a loosening state and can move up and down in the range limited by the waist-shaped hole 27, when the isolation transmission device rotates to a closing state or the grounding transmission device rotates to the grounding state, the arc surface of the input end of the rotating shaft of the device in a changing state jacks up the corresponding notches of the interlocking holes 29, the notches 30 of the rotating shaft of the device in an unchanged state are attached to the corresponding notches of the interlocking holes 29 in a limiting manner, and therefore the operation of grounding or closing can be carried out only when the two devices are in the isolation state.
Claims (6)
1. A manual and electric integrated three-station mechanism with an opening tripping device comprises a frame and is characterized in that an isolation transmission device, an isolation output device, a grounding transmission device, a grounding output device, an energy storage device, an electric driving device and an opening tripping device are arranged on the frame, the electric driving device is connected with and drives the isolation transmission device in a one-way input mode, the isolation transmission device is connected with one end of the energy storage device and can rotate under the driving of manual input or motor driving so as to drive the energy storage device to store energy, when the energy storage device rotates to the maximum energy storage position, the energy storage is released to drive the isolation transmission device to continue rotating, the isolation transmission device can drive the isolation output device to rotate to output a closing torque, in the process of outputting the closing torque by the isolation transmission device, the opening tripping device rotates along with the isolation transmission device and stores energy, after the energy storage state of the opening tripping device is relieved through external force, the brake separating tripping device can drive the isolation output device to reversely rotate through the isolation transmission device to realize isolation operation, the grounding transmission device is connected with the other end of the energy storage device and can rotate under the driving of external force so as to drive the energy storage device to store energy, when the energy storage device rotates past a maximum energy storage position, the energy storage is released to drive the grounding transmission device to continuously rotate, at the moment, the grounding transmission device can drive the grounding output device to rotate to output grounding torque, when the isolation transmission device rotates, the grounding transmission device is in a grounding initial state, and when the grounding transmission device rotates, the isolation transmission device is in a closing initial state;
the isolation transmission device comprises an isolation transmission shaft, two ends of the isolation transmission shaft are rotatably arranged on the rack, the output end of the isolation transmission device is connected with an isolation output device, an isolation transmission crank arm capable of rotating along with the isolation transmission shaft is arranged on the isolation transmission shaft, the isolation transmission crank arm is linked with the energy storage device and can drive the energy storage device to store energy when the isolation transmission shaft rotates, the isolation output device is driven to rotate when the energy storage device releases the energy storage, and an isolation transmission pin is arranged at the free end of the isolation transmission crank arm; the isolation output device comprises an isolation output crank arm which is arranged at the output end of the isolation transmission shaft and can rotate around the isolation transmission shaft and an isolation linkage crank arm which is linked with the isolation output crank arm, an isolation transmission groove which can accommodate the isolation transmission pin to slide in the isolation transmission groove is arranged on the outer side of the isolation linkage crank arm, and isolation limiting arcs matched with the isolation transmission pin are arranged at two ends of the isolation transmission groove;
the electric driving device comprises a driving motor arranged on the rack, an electric output crank arm is rotatably arranged on an output shaft of the driving motor through a one-way bearing, the free end of the electric output crank arm is rotatably connected with an electric connecting rod, the electric driving device also comprises an electric transmission crank arm, a rotating pin is arranged on the electric transmission crank arm, the electric connecting rod is rotatably connected with the rotating pin so as to drive the electric transmission crank arm to rotate, the electric transmission crank arm is rotatably arranged on the isolation transmission shaft, and the outer edge of the electric transmission crank arm is provided with an outer edge groove matched with the isolation transmission pin;
the brake separating tripping device comprises a tripping mechanism plate, a tripping tension spring, a tripping shaft, a tripping limit crank arm and a tripping linkage crank arm, wherein the tripping shaft is rotatably arranged on the rack through the tripping mechanism plate, the tripping limit crank arm and the tripping linkage crank arm are fixedly connected together and rotatably arranged on the isolation transmission shaft, a tripping pin is arranged between the tripping limit crank arm and the tripping linkage crank arm, one end of the tripping tension spring is rotatably hung on the tripping pin, the other end of the tripping tension spring is rotatably arranged on the mechanism plate through a pin, the tripping linkage crank arm can be linked with the isolation transmission device to store energy or drive the linkage transmission device to rotate reversely when the stored energy is released, the brake separating tripping device also comprises a tripping energy storage retaining device in a tripping energy storage state, and the tripping energy storage retaining device acts on the tripping limit crank arm and keeps the tripping tension spring in the energy storage state;
the tripping energy storage retaining device comprises a half shaft notch arranged on the tripping shaft and matched with the tripping limit crank arm and a reset torsion spring sleeved on the tripping shaft, one end of the reset torsion spring is hung on the tripping shaft, the other end of the reset torsion spring is fixed on a tripping mechanism plate, when the tripping linkage crank arm and the tripping limit crank arm are driven by the isolation transmission pin to rotate, the outer end of the tripping limit crank arm stirs the tripping shaft through the half shaft notch to rotate, when the tripping limit crank arm rotates to be separated from interference with the tripping shaft, the tripping shaft resets under the action of the reset torsion spring, and the arc at the back of the half shaft notch limits the tripping limit crank arm in a stretching state of the tripping tension spring, so that energy storage retaining is realized; the tripping energy storage keeping device further comprises a tripping unlocking device for unlocking the tripping energy storage state, the tripping unlocking device comprises a tripping plate and a connecting plate capable of pushing the tripping plate to rotate, the tripping plate is mounted on the tripping shaft and can drive the tripping shaft to rotate, the connecting plate is hung on the rack and can move in a certain range to push against or loosen the tripping plate, when the connecting plate pushes against the tripping plate, the tripping plate drives the tripping shaft to rotate, and the tripping limiting crank arm is released to realize tripping unlocking.
2. The manual and electric integrated three-station mechanism with the brake separating release as claimed in claim 1, wherein the linkage relationship between the release linkage crank arm and the isolation transmission device is as follows: the tripping device comprises a tripping linkage crank arm, an isolating transmission shaft, an energy storage device, a tripping tension spring, a tripping linkage crank arm and an isolating transmission pin, wherein the tripping linkage crank arm is provided with a tripping limit arc matched with the isolating transmission pin, when the isolating transmission shaft rotates under the driving of external force to drive the energy storage device to store energy, the isolating transmission pin abuts against the tripping limit arc and drives the tripping linkage crank arm and the tripping limit crank arm to rotate through the tripping limit arc, so that the tripping tension spring stretches to store energy for tripping, when the tripping energy storage state is relieved, the tripping tension spring releases energy to drive the tripping linkage.
3. The manual and electric integrated three-station mechanism with the brake separating release as claimed in claim 1, wherein the grounding transmission device comprises a grounding transmission shaft, two ends of the grounding transmission shaft are rotatably mounted on the frame, an output end of the grounding transmission device is connected with the grounding output device, a grounding transmission crank arm capable of rotating along with the grounding transmission shaft is arranged on the grounding transmission shaft, the grounding transmission crank arm is linked with the energy storage device and can drive the energy storage device to store energy when the grounding transmission shaft rotates, the energy storage device releases energy to drive the grounding output device to rotate, and a grounding transmission pin is arranged at a free end of the grounding transmission crank arm; the grounding output device comprises a grounding output crank arm which is arranged at the output end of the grounding transmission shaft and can rotate around the grounding transmission shaft and a grounding linkage crank arm linked with the grounding output crank arm, a grounding transmission groove which can accommodate a grounding transmission pin to slide in the grounding transmission groove is arranged at the rotating end of the grounding linkage crank arm, and two ends of the grounding transmission groove are provided with grounding limit arcs matched with the grounding transmission pin.
4. The three-position mechanism with a separating brake release integrated with manual and electric functions as claimed in claim 3, wherein when the load switch is in an isolated state, the grounding transmission pin is located at a grounding start end of the grounding transmission groove, when the grounding transmission device rotates to a maximum energy storage position of the energy storage device under the driving of an external force, the grounding transmission pin is located at a grounding start end of the grounding transmission groove, and when the energy storage device releases energy storage and drives the grounding transmission device to continue to rotate, the grounding transmission pin drives the grounding linkage crank arm to rotate through a grounding limit arc at the grounding start end, so as to drive the grounding output crank arm to rotate and output grounding torque.
5. The three-position mechanism with the brake separating release, which integrates the manual operation and the electric operation, as claimed in claim 1, wherein the energy storage device comprises an energy storage compression spring, two ends of the energy storage compression spring are provided with compression spring heads, the compression spring heads are respectively rotatably connected to the isolation transmission device and the grounding transmission device, a telescopic rod is arranged between the compression spring heads, and the telescopic rod can be contracted along with the compression of the compression spring.
6. The manual and electric integrated three-station mechanism with the brake separating and tripping function as claimed in claim 1, wherein the three-station mechanism further comprises an interlocking mechanism of an isolation transmission device and a grounding transmission device, the interlocking mechanism comprises an interlocking hanging plate, the interlocking hanging plate is hung on the rack through a waist-shaped hole, two ends of the interlocking hanging plate are hung on the input ends of the isolation transmission shaft of the isolation transmission device and the grounding transmission shaft of the grounding transmission device through interlocking holes with notches respectively, and the input ends of the isolation transmission shaft and the grounding transmission shaft are provided with notches respectively matched with the notches of the interlocking holes; the interlocking relation of interlocking link plate and isolation transmission shaft and ground connection transmission shaft is: when isolation transmission and ground connection transmission all are in the isolated state, the incision of isolation transmission and ground connection transmission all faces the breach of interlocking hole, interlocking link plate is in the pine and takes off the state this moment, when one of them rotation of isolation transmission and ground connection transmission is closed a floodgate or the ground connection position, the breach of the corresponding interlocking hole of arc surface jack-up of its input for the incision of another device is spacing with the breach laminating in the interlocking hole that corresponds, thereby realize only when two devices are in the isolated state, just can carry out the operation of closing a floodgate or ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029187.8A CN107706035B (en) | 2017-10-29 | 2017-10-29 | Manual and electric three-station mechanism with brake separating and tripping functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029187.8A CN107706035B (en) | 2017-10-29 | 2017-10-29 | Manual and electric three-station mechanism with brake separating and tripping functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107706035A CN107706035A (en) | 2018-02-16 |
| CN107706035B true CN107706035B (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711029187.8A Active CN107706035B (en) | 2017-10-29 | 2017-10-29 | Manual and electric three-station mechanism with brake separating and tripping functions |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320981B (en) * | 2018-02-28 | 2020-08-18 | 默飓电气有限公司 | Manual and electric load switch three-station mechanism |
| CN108320985B (en) * | 2018-02-28 | 2020-08-18 | 默飓电气有限公司 | Three-station mechanism of load switch |
| CN108470657B (en) * | 2018-02-28 | 2020-08-18 | 默飓电气有限公司 | Three-station mechanism of combined electrical apparatus |
| CN110189955B (en) * | 2019-06-17 | 2024-01-30 | 浙江奔一新能源有限公司 | Dual-energy-storage operating mechanism of isolating switch |
| CN112563066B (en) * | 2020-12-04 | 2023-12-29 | 武汉倍诺德开关有限公司 | Miniaturized multistation operating device |
| CN117672736B (en) * | 2024-01-29 | 2024-04-09 | 佛山市顺德区法福特电气有限公司 | External operating mechanism capable of being operated electrically and manually |
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