CN111463057A - Operating mechanism for load switch of gas-insulated switchgear - Google Patents
Operating mechanism for load switch of gas-insulated switchgear Download PDFInfo
- Publication number
- CN111463057A CN111463057A CN202010275466.8A CN202010275466A CN111463057A CN 111463057 A CN111463057 A CN 111463057A CN 202010275466 A CN202010275466 A CN 202010275466A CN 111463057 A CN111463057 A CN 111463057A
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- tripping
- shaft
- plate
- switching
- crank arm
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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
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- 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
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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
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to an operating mechanism for a load switch of an inflatable cabinet, which comprises a mechanism body part and a mechanism interlocking part, wherein the mechanism body part comprises a driving shaft, and a limiting step is arranged on the driving shaft, so that a tripping crank arm is protected from colliding with a tripping plate, and the tripping plate is prevented from being damaged; the mechanism operates the load switch body to rotate and simultaneously drives the rotating shaft, the rotating shaft drives the transmission rod to rotate through the transmission of the connecting rod so as to drive the indicating plate fixedly arranged at one end of the connecting rod, and the opening and closing indication of the main circuit and the grounding circuit is realized only by one set of indicating device. The interlocking part consists of an interlocking plate, a padlock sliding plate, an interlocking plate body and a padlock bracket, and three position locking holes are formed in the padlock bracket to achieve different padlock protection functions; the padlock sliding plate is provided with a protection plate, the protection plate slides along with the padlock sliding plate and is matched with the switch cabinet door to guarantee that the padlock sliding plate sliding groove arranged on the front panel of the cabinet body is blocked at any time, and the protection grade requirement of the cabinet body is met.
Description
Technical Field
The invention belongs to the technical field of operating mechanisms for load switches, and particularly relates to an operating mechanism for a load switch of an inflatable cabinet.
Background
The operating mechanism may be classified into a manual operating mechanism (CS), an electromagnetic operating mechanism (CD), a spring operating mechanism (CT), and a motor operating mechanism (CJ) according to energy forms. The switching-on energy of the operating mechanism comes from manpower or electric power fundamentally. The two energy sources may also be converted to other forms of energy such as electromagnetic energy, spring potential energy, gravitational potential energy, compression energy of a gas or liquid, and the like.
Most of the opening operation of the load switch can be powered by an energy storage spring arranged on the load switch, but some pneumatic operating mechanisms and hydraulic operating mechanisms can also utilize the energy provided by the operating mechanisms to complete the opening operation of the load switch. The operating mechanism is generally an independent product, and one type of operating mechanism can be assembled with several different types of load switches; similarly, one type of load switch can be assembled with several different types of operating mechanisms. The operating mechanism is integrated with the load switch, and the special operating mechanism is only assembled on part of the load switch.
The lifting mechanism is a mechanism for driving the moving contact of the load switch to move. It can make the moving contact head move according to a certain track, usually linear motion or approximate linear motion. The transmission mechanism is an intermediate link for connecting the operating mechanism and the lifting mechanism. Because the operating mechanism and the lifting mechanism are often separated by a certain distance and the movement directions of the operating mechanism and the lifting mechanism are often inconsistent, a transmission mechanism needs to be additionally arranged; in some cases, however, the drive mechanism may be omitted, and the lifting mechanism and the drive mechanism are usually formed by a link mechanism.
The speed at which the load switch operates is high. In order to reduce the impact and avoid the damage of parts, a buffer between the opening and the closing is needed. The damper is mostly mounted in the vicinity of the lifting mechanism. The operating mechanism operates according to the opening and closing signals. According to the operation and maintenance requirements, the operating mechanism is provided with a mechanical indicator reflecting the opening and closing positions on the operating mechanism and the load switch in addition to an electric signal indication of opening and closing.
The load switch operating mechanism in the prior art has the defects that the indicating driving force is not taken from the load switch body, and when the opening and closing indicating indication is in place, the actual opening operation of the load switch is not in place or the opening and closing operation is not in place;
disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide an operating mechanism for a load switch of an air-filled tank, which indicates that a driving force is taken from a load switch body.
The invention realizes the purpose through the following technical scheme:
an operating mechanism for a load switch of an inflatable cabinet comprises a rack, a mechanism body part and a mechanism interlocking part, wherein the rack comprises a first rack plate, a middle partition plate and a second rack plate, the first rack plate and the second rack plate are fixedly connected through a strut, and the middle partition plate is fixedly connected with the second rack plate through an upright post;
the interlocking part of the mechanism consists of an interlocking plate weldment, a padlock sliding plate, an interlocking plate body and a padlock support, wherein the interlocking plate body is fixedly arranged on a front plate of the mechanism, the padlock sliding plate and the interlocking plate weldment are fixedly arranged and can move up and down relative to the interlocking plate body, the padlock support is fixedly arranged on the surface of the front plate of the cabinet body, a padlock hole is formed in the padlock sliding plate, three position locking holes are formed in the padlock support, the three position locking holes respectively have different padlock protection functions, the position of the uppermost lock hole is that the padlock sliding plate locks a main circuit opening and closing main shaft hole of a load switch, the load switch cannot perform main circuit opening and closing actions, and the lower operating shaft can be operated to be grounded in a main circuit opening state (the mechanism cannot operate a grounding operating shaft in a main circuit closing state, and an interlock is arranged in the mechanism); the position of the lowest lockhole, the grounding operation shaft hole of the padlock sliding plate lock load switch, the main circuit opening and closing main shaft of the upper mechanism can be operated (the mechanism can not be operated in the grounding state of the grounding circuit, the main circuit opening and closing main shaft is interlocked in the mechanism), the position of the lockhole in the middle of the hanger locks the opening and closing main shaft hole and the grounding operation shaft hole, and the mechanism can not do any action;
the mechanism body part comprises a switching-on and switching-off switch operating device, a grounding switch operating device, a spring energy storage device, a switching-off tripping device and a tripping limiting mechanism, wherein the switching-on and switching-off switch operating device comprises a switching-on and switching-off main shaft and a switching-on and switching-off crank arm, the switching-on and switching-off main shaft is in rotatable fit with a first frame plate through a shaft sleeve, the outer end of the switching-on and switching-off main shaft extends out of the first frame plate, the switching-on and switching-off crank arm is connected with the switching-on and switching-off;
the grounding switch operating device comprises a grounding switch operating shaft and a grounding crank arm, the grounding crank arm is sleeved on the grounding switch operating shaft, the grounding switch operating shaft is rotatably matched with the first frame plate through a shaft sleeve, the outer end of the grounding switch operating shaft extends out of the first frame plate, and an independent microswitch is arranged on the second frame plate on one side of the grounding crank arm;
be equipped with spring energy memory between earthing switch operating means and the divide-shut brake switch operating means, thereby earthing switch operating means's one end stretches out in one side of frame and can rotate under manual drive and drive spring energy memory and carry out the energy storage, when spring energy memory rotated the biggest energy storage position, release energy storage made earthing switch operating means continue to rotate, and earthing switch operating means passes through ground connection turning arm output torque this moment. The switching-on and switching-off switch operating device has the same principle as the grounding switch operating device.
The separating brake tripping device comprises a tripping 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 installed on a first frame plate through the tripping plate, the tripping limit crank arm and the tripping linkage crank arm are fixedly connected together and rotatably installed on a separating and closing main 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 installed on the first frame plate through a pin, the tripping linkage crank arm can be in linkage with the separating and closing main shaft to store energy or drive the separating and closing main shaft to rotate reversely when the energy is stored, the separating brake 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 and enables the tripping.
The tripping energy storage retaining device comprises a half shaft notch which is arranged on the tripping shaft and matched with the outer end of the tripping limit connecting lever and a reset torsion spring which is 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 the tripping plate, when the tripping linkage connecting lever and the tripping limit connecting lever rotate under the drive of the opening and closing main shaft, the outer end of the tripping limit connecting lever just scratches the half shaft notch, during the rotation process, the outer end of the tripping limit connecting lever always keeps contact with the tangent plane of the half shaft notch, so that the tripping shaft is toggled to rotate through the half shaft notch, when the tripping limit connecting lever rotates to be separated from interference with the half shaft notch, the tripping shaft resets under the action of the reset torsion spring, the arc at the back of the half shaft notch limits the tripping limit connecting lever to be in the tripping stretching state, and energy storage maintenance is realized.
The energy storage state of the tripping tension spring can be unlocked by external force, and the function can be realized by a tripping unlocking device, the tripping unlocking device comprises a tripping plate and a tripping connecting plate capable of pushing the tripping plate to rotate, the tripping plate is arranged on the tripping shaft and can drive the tripping shaft to rotate, the tripping connecting plate is hung on the second mechanism plate and can move within a certain range, for example, a waist-shaped hole is arranged on the tripping connecting plate, the waist-shaped hole is hung on the second mechanism plate through a pin, when the tripping connecting plate is jacked up, the upper end of the tripping plate jacks up one end of the tripping plate to drive the tripping plate to rotate, so that the tripping shaft rotates to the half shaft notch towards the outer end of the tripping limiting crank arm, the limiting state of the tripping limiting crank arm is relieved to realize tripping unlocking, and after tripping, the limiting crank arm and the tripping linkage arm synchronously rotate under the restoring force of the tripping tension spring, the opening and closing main shaft is driven to rotate reversely, and the opening and closing operation is realized.
The tripping limiting mechanism comprises a limiting barb, a shaft welding piece and an electric mechanism driving shaft, the limiting barb is arranged on the middle partition plate, the shaft welding piece is arranged on the opening and closing main shaft, the electric mechanism driving shaft is arranged on the shaft welding piece, a limiting step is arranged on the electric mechanism driving shaft, and the electric mechanism driving shaft is matched with the limiting barb on the middle partition plate;
the electric mechanism drive shaft is used as the spacing axle of divide-shut brake main shaft under the condition that the mechanism does not install the motor, and divide-shut brake main shaft rotates under external drive, drives dropout turning arm and closing device to required position, thereby in order not to let the tripping device continue to rotate and destroy the dropout board, when spacing step reachs spacing barb department, spacing barb prevents that divide-shut brake main shaft from continuing to rotate to protection dropout turning arm is unlikely to collide the dropout board, prevents to damage the dropout board.
As a further optimization scheme of the invention, the mechanism interlocking part also comprises a lower door interlocking mechanism, and the lower door interlocking of the switch cabinet is completed through the cooperation of a lower door interlocking plate matched with the cam sleeve and a lever; the cam sleeve is arranged on the first frame plate and fixedly installed on the opening and closing main shaft, and the lower door interlocking plate and the lever are connected with the first frame plate through a pin shaft.
As a further optimization scheme of the invention, the padlock sliding plate is provided with a protection plate, and the protection plate slides along with the padlock sliding plate and is matched with the opening and closing door to ensure that a padlock sliding plate sliding groove arranged on the front panel of the cabinet body is blocked at any time so as to meet the protection grade requirement of the cabinet body.
As a further optimization scheme of the invention, the spring energy storage device comprises a pressure spring, a first pressure spring head, a second pressure spring head, a first spring crank arm and a second spring crank arm, the opening and closing main shaft is provided with the first spring crank arm, the earthing switch operating shaft is provided with the second spring crank arm, the first pressure spring head and the second pressure spring head are connected through a telescopic connecting rod, the pressure spring is sleeved on the telescopic connecting rod, the first pressure spring head is hinged with the second spring crank arm on the earthing switch operating shaft through a pin shaft, the second pressure spring head is hinged with the first spring crank arm on the opening and closing main shaft through a pin shaft, and when the earthing switch operating device rotates, the first pressure spring head is driven to compress the pressure spring so as to store energy; when the opening and closing main shaft rotates, the second pressure spring head can compress the pressure spring in the opposite direction so as to store energy.
As a further optimization scheme of the invention, the telescopic connecting rod is two sleeved and clearance-matched pipe fittings.
As a further optimization scheme of the invention, the dividing and combining crank arm and the grounding crank arm are both provided with output pin shafts, and the second frame plate is provided with arc-shaped output grooves in clearance fit with the output pin shafts.
As a further optimization scheme of the invention, the mechanism body part also comprises an indicating mechanism, the indicating mechanism comprises an indicating plate, a transmission rod, an indicating connecting rod, an indicating short connecting rod, an indicating long connecting rod and an indicating rotating shaft, a clamping device is arranged on the indicating rotating shaft, the indicating rotating shaft is movably connected with a rotating shaft of the load switch body through the clamping device, the indicating short connecting rod is fixedly connected with the tail part of the indicating rotating shaft, one end of the indicating long connecting rod is rotatably connected with the indicating short connecting rod through a pin shaft, the other end of the indicating long connecting rod is rotatably connected with the indicating connecting rod through a pin shaft, the indicating connecting rod is fixedly connected with one end of the transmission rod. The operating mechanism operates the load switch body to rotate and simultaneously drives the indicating rotating shaft, the indicating rotating shaft drives the transmission rod to rotate through the transmission of the connecting rod so as to drive the indicating plate fixedly arranged at one end of the transmission rod to rotate to indicate the correct opening and closing positions of the main circuit and the grounding circuit of the switch, and the indicating driving force of the structure is from the rotation of the main shaft of the load switch body.
As a further optimized solution of the present invention, the indication rotating shaft is disposed at the center of the second frame plate.
In a further preferred embodiment of the present invention, the load switch body to which the operating mechanism is connected, and the rotating shaft of the load switch body is connected to the indicating rotating shaft.
The invention has the beneficial effects that:
1) the indicating driving force of the indicating mechanism of the invention comes from the main shaft rotation of the load switch body, for the original structure, the switching-on and switching-off indication of the main circuit and the grounding circuit is solved only by one set of indicating device, meanwhile, for the original structure, the situation of indicating not in place does not exist, the indicating driving force of the original structure is not taken from the load switch body, when the switching-on and switching-off indication is in place, the situation that the actual switching-off operation of the load switch is not in place or switching-on and switching-off are not in place exists, and the situation is completely avoided by the structure;
2) the interlocking part of the mechanism of the invention has different padlock protection functions, the uppermost padlock locks the switching-on and switching-off operation hole of the main circuit of the load switch, the load switch can not perform the switching-on and switching-off actions of the main circuit, and the lower operation shaft can be operated to be grounded under the switching-off state of the main circuit; the lowest padlock lock load switch grounding operation shaft hole can operate the upper mechanism main circuit opening and closing operation shaft, the lock hole position in the middle of the padlock locks all the upper and lower operation shaft operation holes, and the mechanism can not do any action;
3) the protective plate is arranged on the padlock sliding plate, slides along with the padlock sliding plate and is matched with the opening and closing door to ensure that a padlock sliding plate sliding groove arranged on a front panel of the cabinet body is blocked at any time so as to meet the protection grade requirement of the cabinet body;
4) the electric mechanism driving shaft is used as a limiting shaft of the opening and closing main shaft under the condition that the mechanism is not provided with a motor, the opening and closing main shaft is driven by external force to rotate to drive the tripping crank arm and the closing device to a required position, in order to prevent the tripping device from continuously rotating to damage the tripping plate, when the limiting step reaches the limiting barb, the limiting barb prevents the opening and closing main shaft from continuously rotating, so that the tripping crank arm is protected from colliding with the tripping plate, and the tripping plate is prevented from being damaged.
Drawings
FIG. 1 is a schematic view of the connection structure of the present invention with a cabinet according to one embodiment;
FIG. 2 is a schematic diagram of the overall structure of the present invention in the first embodiment;
FIG. 3 is a schematic diagram of the overall structure of the present invention in the first embodiment;
FIG. 4 is an exploded view of the present invention in one embodiment;
FIG. 5 is a schematic structural diagram of the present invention in accordance with one embodiment;
fig. 6 is a schematic structural diagram of the trip limiting mechanism according to the first embodiment of the invention.
In the figure:
a first frame plate 101, a middle partition plate 102 and a second frame plate 103;
a switching-on and switching-off main shaft 301, a switching-on and switching-off crank arm 302, a plurality of groups of linkage combined micro switches 303, a grounding switch operating shaft 304, a grounding crank arm 305 and an independent micro switch 306;
a compression spring 401, a first compression spring head 402, a second compression spring head 403, a first spring crank arm 404 and a second spring crank arm 405;
a tripping plate 501, a tripping tension spring 502, a tripping shaft 503, a tripping limit crank arm 504, a tripping linkage crank arm 505, a reset torsion spring 506, a tripping connecting plate 507, a limit barb 508, a shaft welding piece 509 and an electric mechanism driving shaft 510;
an indication plate 601, a transmission rod 602, an indication connecting rod 603, an indication short connecting rod 604, an indication long connecting rod 605 and an indication rotating shaft 606;
a cabinet front panel 901 and a padlock sliding plate sliding groove 911.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example one
As shown in fig. 1-6, an operating mechanism for a load switch of an inflatable cabinet comprises a frame, a mechanism body part and a mechanism interlocking part, wherein the frame comprises a first frame plate 101, a middle partition plate 102 and a second frame plate 103, the first frame plate 101 and the second frame plate 103 are fixedly connected through a strut, and the middle partition plate 102 is fixedly connected with the second frame plate 103 through a column;
the interlocking part of the mechanism consists of an interlocking plate weldment 201, a padlock sliding plate 202, an interlocking plate body 203 and a padlock bracket 204, wherein the interlocking plate weldment 201 is fixedly arranged on a front plate of the mechanism, the padlock sliding plate 202 and the interlocking plate weldment 201 are fixedly arranged, and can move up and down relative to the interlocking plate body 203, the padlock bracket 204 is fixedly arranged on the surface of the front panel 901 of the cabinet body, the padlock sliding plate 202 is provided with a padlock hole, meanwhile, three position locking holes 209 are formed in the padlock bracket 204, the three position locking holes 209 respectively have different padlock protection functions, the position of the uppermost locking hole is that the padlock sliding plate 202 locks a main circuit opening and closing main shaft 301 hole of the load switch, the load switch cannot perform main circuit opening and closing actions, and the lower operating shaft can be operated to be grounded in a main circuit opening state (the mechanism cannot operate the grounded operating shaft in a main circuit closing state, and the mechanism is internally interlocked); at the lowest keyhole position, a padlock sliding plate 202 locks a load switch grounding operation shaft hole, an upper mechanism main loop opening and closing main shaft 301 can be operated (the mechanism cannot be operated in the grounding state of the grounding loop, the main loop opening and closing main shaft 301 is interlocked in the mechanism), and the central keyhole position locks the opening and closing main shaft 301 hole and the grounding operation shaft hole completely, so that the mechanism cannot do any action;
preferably, the mechanism interlocking part also comprises a lower door interlocking mechanism, and the lower door interlocking of the switch cabinet is completed through the cooperation of a lower door interlocking plate 206 matched with the cam sleeve 205 and a lever 207; the cam sleeve 205 is arranged on the first frame plate 101 and fixedly installed on the opening and closing main shaft 301, and the lower door interlocking plate 206 and the lever 207 are connected with the first frame plate 101 through pin shafts.
Preferably, the padlock sliding plate 202 is provided with a protection plate 208, and the protection plate 208 slides along with the padlock sliding plate 202 and is matched with a door to be opened and closed at the same time, so that the padlock sliding plate sliding groove 911 arranged on the cabinet front panel 901 is blocked to meet the protection grade requirement of the cabinet.
The mechanism body part comprises a switching-on and switching-off switch operating device, a grounding switch operating device, a spring energy storage device, a switching-off tripping device and a tripping limiting mechanism, the switching-on and switching-off switch operating device comprises a switching-on and switching-off main shaft 301 and a switching-on and switching-off crank arm 302, the switching-on and switching-off main shaft 301 is in rotatable fit with the first frame plate 101 through a shaft sleeve, the outer end of the switching-on and switching-off main shaft 301 extends out of the first frame plate 101, the switching-on and switching-off crank arm 302 is movably connected with the switching-on and switching-off main shaft 301, the switching-on and switching-off crank arm;
the grounding switch operating device comprises a grounding switch operating shaft 304 and a grounding crank arm 305, the grounding crank arm 305 is sleeved on the grounding switch operating shaft 304, the grounding switch operating shaft 304 is rotatably matched with the first frame plate 101 through a shaft sleeve, the outer end of the grounding switch operating shaft 304 extends out of the first frame plate 101, and an independent microswitch 306 is arranged on the second frame plate 103 on one side of the grounding crank arm 305;
the spring energy storage device comprises a pressure spring 401, a first pressure spring head 402, a second pressure spring head 403, a first spring crank arm 404 and a second spring crank arm 405, the opening and closing main shaft 301 is provided with the first spring crank arm 404, the grounding switch operating shaft 304 is provided with the second spring crank arm 405, the first pressure spring head 402 and the second pressure spring head 403 are connected through a telescopic connecting rod, the pressure spring 401 is sleeved on the telescopic connecting rod, the first pressure spring head 402 is hinged with the second spring crank arm 405 on the grounding switch operating shaft 304 through a pin shaft, the second pressure spring head 403 is hinged with the first spring crank arm 404 on the opening and closing main shaft 301 through a pin shaft, and when the grounding switch operating device rotates, the first pressure spring head 402 is driven to compress the pressure spring 401 so as to store energy; when the opening and closing main shaft 301 rotates, the second compression spring head 403 compresses the compression spring 401 in the opposite direction to store energy.
Preferably, the telescopic connecting rod is two sleeved and clearance-fit pipe fittings.
Preferably, the dividing and combining crank arm 302 and the grounding crank arm 305 are both provided with output pins, and the second frame plate 103 is provided with arc-shaped output grooves in clearance fit with the output pins.
Be equipped with spring energy memory between earthing switch operating means and the divide-shut brake switch operating means, thereby earthing switch operating means's one end stretches out in one side of frame and can rotate under manual drive and drive spring energy memory and carry out the energy storage, when spring energy memory rotated the biggest energy storage position, release energy storage made earthing switch operating means continue to rotate, and earthing switch operating means passes through earthing connecting lever 305 output moment of torsion this moment. The switching-on and switching-off switch operating device has the same principle as the grounding switch operating device.
The brake separating tripping device comprises a tripping plate 501 and a tripping tension spring 502, the tripping device comprises a tripping shaft 503, a tripping limit crank arm 504 and a tripping linkage crank arm 505, wherein the tripping shaft 503 is rotatably installed on the first frame plate 101 through a tripping plate 501, the tripping limit crank arm 504 and the tripping linkage crank arm 505 are fixedly connected together and rotatably installed on the opening and closing main shaft 301, a tripping pin is arranged between the tripping limit crank arm 504 and the tripping linkage crank arm 505, one end of a tripping tension spring 502 is rotatably hung on the tripping pin, the other end of the tripping tension spring is rotatably installed on the first frame plate 101 through a pin, the tripping linkage crank arm 505 can be in linkage with the opening and closing main shaft 301 to store energy or drive the opening and closing main shaft 301 to rotate reversely when the stored energy is released, the opening and tripping device further comprises a tripping energy storage and retaining device in a tripping energy storage state, and the tripping energy storage and retaining device acts on the tripping limit crank arm 504 and enables.
After the tripping tension spring 502 is stretched, the tripping tension spring can be kept in an energy storage state under the condition of no external force, the function is realized by a tripping energy storage keeping device, the tripping energy storage keeping device comprises a half shaft notch which is arranged on a tripping shaft 503 and matched with the outer end of a tripping limit crank 504 and a reset torsion spring 506 which is sleeved on the tripping shaft 503, one end of the reset torsion spring 506 is hung on the tripping shaft 503, the other end of the reset torsion spring is fixed on a tripping plate 501, when the tripping linkage crank 505 and the tripping limit crank 504 are driven by a switching main shaft 301 to rotate, the outer end of the tripping limit crank 504 just crosses the half shaft notch, in the rotating process, the outer end of the tripping limit crank 504 is always kept in contact with the tangent plane of the half shaft notch, so as to toggle the tripping shaft 503 to rotate through the half shaft notch, when the tripping limit crank 504 rotates to be separated from interference with the half shaft notch, the tripping shaft 503 resets under the action of the reset torsion spring 506, the arc at the back of the half shaft notch limits the tripping limit crank 504 in the stretching state of the tripping tension spring 502, so that energy storage keeping is realized.
The energy storage state of the tripping tension spring 502 can be unlocked by external force, and this function can be realized by a tripping unlocking device, where the tripping unlocking device includes a tripping plate 501 and a tripping link plate 507 capable of pushing the tripping plate 501 to rotate, the tripping plate 501 is mounted on the tripping shaft 503 and can drive the tripping shaft 503 to rotate, the tripping link plate 507 is hung on the second mechanism plate and can move within a certain range, for example, as shown in the figure, a kidney-shaped hole is formed on the tripping link plate 507 and hung on the second mechanism plate by a pin, when the tripping link plate 507 is jacked up, the upper end of the tripping plate jacks up one end of the tripping plate 501 to drive the tripping plate 501 to rotate, so that the tripping shaft 503 rotates to the half-shaft notch towards the outer end of the tripping limit crank arm 504, at this time, the limit state of the tripping limit crank arm 504 is released, unlocking is realized, after tripping is unlocked, under the restoring force of the tripping tension spring 502, the tripping limit crank arm 504 and the tripping linkage crank arm 505 synchronously rotate to drive the opening and closing main shaft 301 to reversely rotate, so that the opening operation is realized.
The mechanism body part also comprises a tripping limiting mechanism, the tripping limiting mechanism comprises a limiting barb 508, a shaft welding piece 509 and an electric mechanism driving shaft 510, the middle partition plate 102 is provided with the limiting barb 508, the opening and closing main shaft 301 is provided with the shaft welding piece 509, the shaft welding piece 509 is provided with an electric mechanism driving shaft 510, the electric mechanism driving shaft 510 is provided with a limiting step, and the electric mechanism driving shaft 510 is matched with the limiting barb 508 on the middle partition plate 102;
the electric mechanism driving shaft 510 serves as a limiting shaft of the opening and closing main shaft 301 under the condition that the mechanism is not provided with a motor, the opening and closing main shaft 301 is driven by external force to rotate to drive the tripping crank arm and the closing device to a required position, in order to prevent the tripping device from continuing to rotate and damage the tripping plate 501, when the limiting step reaches the limiting barb 508, the limiting barb 508 prevents the opening and closing main shaft 301 from continuing to rotate, so that the tripping crank arm is protected from colliding with the tripping plate 501, and the tripping plate 501 is prevented from being damaged.
The mechanism body part also comprises an indicating mechanism, the indicating mechanism comprises an indicating plate 601, a transmission rod 602, an indicating connecting rod 603, an indicating short connecting rod 604, an indicating long connecting rod 605 and an indicating rotating shaft 606, a clamping device is arranged on the indicating rotating shaft 606, the indicating rotating shaft 606 is movably connected with a rotating shaft of the load switch body through the clamping device, the indicating short connecting rod 604 is fixedly connected with the tail part of the indicating rotating shaft 606, one end of the indicating long connecting rod 605 is rotatably connected with the indicating short connecting rod 604 through a pin shaft, the other end of the indicating long connecting rod is rotatably connected with the indicating connecting rod 603 through a pin shaft, the indicating connecting rod 603 is fixedly connected with one end of the transmission rod 602. The operating mechanism operates the load switch body to rotate and simultaneously drives the indicating rotating shaft 606, the indicating rotating shaft 606 drives the transmission rod 602 to rotate through the transmission of the connecting rod so as to drive the indicating plate 601 fixedly installed at one end of the transmission rod 602 to rotate to indicate the correct opening and closing positions of the main circuit and the grounding circuit of the switch, and the indicating driving force of the structure is from the rotation of the main shaft of the load switch body.
Preferably, the indication rotation shaft 606 is provided at the center of the second chassis plate 103.
Preferably, the load switch body is connected to the operating mechanism, and the rotating shaft of the load switch body is connected to the instruction rotating shaft 606.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. The utility model provides an aerify cabinet operating device for load switch which characterized in that: the mechanism comprises a rack, a mechanism body part and a mechanism interlocking part, wherein the rack comprises a first rack plate, a middle partition plate and a second rack plate, the first rack plate and the second rack plate are fixedly connected through a support column, and the middle partition plate is fixedly connected with the second rack plate through an upright column;
the interlocking part of the mechanism consists of an interlocking plate weldment, a padlock sliding plate, an interlocking plate body and a padlock bracket, wherein the interlocking plate body is fixedly arranged on a front plate of the mechanism;
the mechanism body part comprises a switching-on and switching-off switch operating device, a grounding switch operating device, a spring energy storage device, a switching-off tripping device and a tripping limiting mechanism, wherein the switching-on and switching-off switch operating device comprises a switching-on and switching-off main shaft and a switching-on and switching-off crank arm, the switching-on and switching-off main shaft is in rotatable fit with a first frame plate through a shaft sleeve, the outer end of the switching-on and switching-off main shaft extends out of the first frame plate, the switching-on and switching-off crank arm is connected with the switching-on and switching-off;
the grounding switch operating device comprises a grounding switch operating shaft and a grounding crank arm, the grounding crank arm is sleeved on the grounding switch operating shaft, the grounding switch operating shaft is rotatably matched with the first frame plate through a shaft sleeve, the outer end of the grounding switch operating shaft extends out of the first frame plate, and an independent microswitch is arranged on the second frame plate on one side of the grounding crank arm;
a spring energy storage device is arranged between the grounding switch operating device and the opening and closing switch operating device;
the brake separating tripping device comprises a tripping 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 a first frame plate through the tripping plate, the tripping limit crank arm and the tripping linkage crank arm are fixedly connected together and rotatably arranged on a brake separating and combining main 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 first frame plate through a pin, the tripping linkage crank arm can be in linkage with the brake separating and combining main shaft to store energy or drive the brake separating and combining main shaft to rotate reversely when the stored energy is released, the brake separating tripping device also comprises a tripping energy storage and retaining device, the tripping energy storage and retaining device comprises a half-shaft notch which is arranged on the tripping shaft and matched with the outer end of the, one end of the reset torsion spring is hung on the tripping shaft, and the other end of the reset torsion spring is fixed on the tripping plate;
the tripping limiting mechanism comprises a limiting barb, a shaft welding piece and an electric mechanism driving shaft, the limiting barb is arranged on the middle partition plate, the shaft welding piece is arranged on the opening and closing main shaft, the electric mechanism driving shaft is arranged on the shaft welding piece, a limiting step is arranged on the electric mechanism driving shaft, and the electric mechanism driving shaft is matched with the limiting barb on the middle partition plate.
2. The operating mechanism for the load switch of the gas-filled cabinet as claimed in claim 1, wherein: the mechanism interlocking part also comprises a lower door interlocking mechanism, and the lower door interlocking of the switch cabinet is completed through the cooperation of a lower door interlocking plate matched with the cam sleeve and a lever; the cam sleeve is arranged on the first frame plate and fixedly installed on the opening and closing main shaft, and the lower door interlocking plate and the lever are connected with the first frame plate through a pin shaft.
3. The operating mechanism for the load switch of the gas-filled cabinet as claimed in claim 1, wherein: and a protection plate is arranged on the padlock sliding plate.
4. The operating mechanism for the load switch of the gas-filled cabinet as claimed in claim 1, wherein: the spring energy storage device comprises a pressure spring, a first pressure spring head, a second pressure spring head, a first spring crank arm and a second spring crank arm, a switching main shaft is provided with the first spring crank arm, a grounding switch operating shaft is provided with the second spring crank arm, the first pressure spring head and the second pressure spring head are connected through a telescopic connecting rod, a pressure spring sleeve is arranged on the telescopic connecting rod, the first pressure spring head is hinged with the second spring crank arm on the grounding switch operating shaft through a pin shaft, and the second pressure spring head is hinged with the first spring crank arm on the switching main shaft through a pin shaft.
5. The operating mechanism for the load switch of the gas-filled cabinet as claimed in claim 1, wherein: the telescopic connecting rod is two sleeved pipe fittings in clearance fit.
6. The operating mechanism for the load switch of the gas-filled cabinet as claimed in claim 1, wherein: and the second frame plate is provided with an arc output groove in clearance fit with the output pin shaft.
7. The operating mechanism for the load switch of the gas-filled cabinet as claimed in claim 1, wherein: the mechanism body part also comprises an indicating mechanism, the indicating mechanism comprises an indicating plate, a transmission rod, an indicating connecting rod, an indicating short connecting rod, an indicating long connecting rod and an indicating rotating shaft, a clamping device is arranged on the indicating rotating shaft, the indicating rotating shaft is movably connected with a rotating shaft of the load switch body through the clamping device, the indicating short connecting rod is fixedly connected with the tail of the indicating rotating shaft, one end of the indicating long connecting rod is rotatably connected with the indicating short connecting rod through a pin shaft, the other end of the indicating long connecting rod is rotatably connected with the indicating connecting rod through a pin shaft, the indicating connecting rod is fixedly connected with one end of the transmission rod.
8. The operating mechanism for the load switch of the gas-filled cabinet as claimed in claim 1, wherein: the indication rotating shaft is arranged in the center of the second frame plate.
9. The operating mechanism for the load switch of the gas-filled cabinet as claimed in claim 1, wherein: the load switch body is connected with the operating mechanism, and the rotating shaft of the load switch body is connected with the indicating rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010275466.8A CN111463057A (en) | 2020-04-09 | 2020-04-09 | Operating mechanism for load switch of gas-insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010275466.8A CN111463057A (en) | 2020-04-09 | 2020-04-09 | Operating mechanism for load switch of gas-insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111463057A true CN111463057A (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010275466.8A Pending CN111463057A (en) | 2020-04-09 | 2020-04-09 | Operating mechanism for load switch of gas-insulated switchgear |
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| Country | Link |
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| CN (1) | CN111463057A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635233A (en) * | 2020-12-25 | 2021-04-09 | 默飓电气有限公司 | Operating mechanism of load switch-fuse combined electrical apparatus |
| CN112802705A (en) * | 2021-01-28 | 2021-05-14 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
-
2020
- 2020-04-09 CN CN202010275466.8A patent/CN111463057A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635233A (en) * | 2020-12-25 | 2021-04-09 | 默飓电气有限公司 | Operating mechanism of load switch-fuse combined electrical apparatus |
| CN112802705A (en) * | 2021-01-28 | 2021-05-14 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
| CN112802705B (en) * | 2021-01-28 | 2023-02-28 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
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