CN210245399U - Vacuum circuit breaker with guiding device - Google Patents
Vacuum circuit breaker with guiding device Download PDFInfo
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- CN210245399U CN210245399U CN201921605094.XU CN201921605094U CN210245399U CN 210245399 U CN210245399 U CN 210245399U CN 201921605094 U CN201921605094 U CN 201921605094U CN 210245399 U CN210245399 U CN 210245399U
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- crank arm
- frame
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a vacuum circuit breaker with guider, including frame and the operating mechanism of setting on the frame, the main shaft system, the drive connecting lever, the connecting rod, the transmission connecting lever, transmission round pin and insulating pull rod, set up the guide way on the frame, the drive connecting lever, the connecting rod, the transmission connecting lever articulates in proper order, insulating pull rod passes through transmission round pin fixed connection with the transmission connecting lever, transmission connecting lever pivoted sets up at the frame, give combined floodgate instruction back, the operating mechanism combined floodgate, the main shaft system rotates and drives drive connecting lever counter-clockwise turning, under the effect of drive connecting lever, the synchronous counter-clockwise turning of transmission connecting lever, under the lever action of transmission connecting lever, transmission round pin and insulating pull rod along the guide way upward movement, realize combined floodgate, after giving the separating brake instruction, the operating mechanism separating brake, the main shaft system carries out reverse rotation. The moving and static contacts of the vacuum arc extinguish chamber keep enough coaxiality when the moving end of the vacuum arc extinguish chamber moves, particularly when the vacuum arc extinguish chamber is switched on, fusion welding between the moving and static contacts is avoided, and reliability is improved.
Description
Technical Field
The utility model relates to a high-voltage electrical equipment technical field especially relates to a vacuum circuit breaker with guider.
Background
In some vacuum circuit breakers in the industry at present, due to the defects of design, on one hand, when a switch is switched on, switch-on bounce can be generated due to poor coaxiality of a moving contact and a fixed contact; on the other hand, during operation, the movable contact and the fixed contact are not reliably contacted due to the action of the electrodynamic force, so that a friction effect is generated, and fusion welding between the movable contact and the fixed contact is caused. Above, the reliability of the operation of the power system is seriously affected.
Therefore, how to provide a vacuum circuit breaker with a guiding device to improve reliability is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a vacuum circuit breaker with a guide device to improve reliability.
In order to achieve the above object, the utility model provides a following technical scheme:
a vacuum circuit breaker with a guide device comprises a frame, an operating mechanism, a main shaft system, a driving crank arm, a connecting rod, a driving crank arm, a driving pin and an insulating pull rod, wherein the operating mechanism, the main shaft system, the driving crank arm, the connecting rod, the driving crank arm, the driving pin and the insulating pull rod are arranged on the frame, a guide groove is arranged on the frame, the guide groove is arranged on the frame,
the driving crank arm, the connecting rod and the transmission crank arm are sequentially hinged, the insulating pull rod is fixedly connected with the transmission crank arm through the transmission pin, the transmission crank arm is rotatably arranged on the frame,
when a closing instruction is given, the operating mechanism is closed, the main shaft system rotates to drive the driving connecting lever to rotate anticlockwise, the driving connecting lever, the connecting rod, the transmission connecting lever and the frame form a four-bar mechanism, the transmission connecting lever synchronously rotates anticlockwise under the action of the driving connecting lever, the transmission pin and the insulation pull rod move upwards along the guide groove under the lever action of the transmission connecting lever to realize closing,
and when a brake-separating instruction is given, the operating mechanism separates the brake, and the main shaft system reversely rotates.
Preferably, an adjusting device is arranged between the connecting rod and the transmission crank arm,
the adjusting device comprises a rotating block,
the rotating block moves on the end thread of the connecting rod, and the rotating block is hinged with the transmission crank arm.
Preferably, the adjusting device further comprises an adjusting device and a locking device,
the adjusting device drives the rotating block to move on the end thread of the connecting rod, and the locking device fixes the rotating block.
Preferably, the adjusting device is an adjusting nut.
Preferably, the locking device is a lock nut.
Preferably, the operating mechanism is a manual mechanism.
Preferably, the operating mechanism is an electric mechanism.
The utility model provides a vacuum circuit breaker with guider, including the frame and set up operating mechanism, main shaft system, drive connecting lever, connecting rod, transmission connecting lever, drive round pin and the insulating pull rod on the frame, be provided with the guide way on the frame, wherein, drive connecting lever, the connecting rod, drive connecting lever articulate in proper order, insulating pull rod with drive connecting lever passes through drive round pin fixed connection, the setting that drive connecting lever rotated is in on the frame, after giving the command of closing a floodgate, operating mechanism combined floodgate, the main shaft system rotates and drives drive connecting lever anticlockwise rotation, drive connecting lever, the connecting rod, drive connecting lever, the frame constitutes four-bar mechanism under the effect of drive connecting lever, drive connecting lever synchronous anticlockwise rotation, the transmission pin and the insulating pull rod move upwards along the guide groove to realize closing, and when a switching-off instruction is given, the operating mechanism switches off, and the main shaft system rotates reversely.
The utility model provides a vacuum circuit breaker with a guiding device, wherein a frame is provided with a guiding structure, and the frame, a transmission crank arm, a transmission pin and an insulation pull rod form a slider structure, namely the guiding device; the moving and static contacts of the vacuum arc extinguish chamber keep enough coaxiality when the moving end of the vacuum arc extinguish chamber moves (particularly when the vacuum arc extinguish chamber is switched on); the bounce of the moving contact during the closing action is reduced, the friction effect of the moving contact and the static contact caused by the electrodynamic force is also reduced, and fusion welding between the moving contact and the static contact is avoided, so that the reliability is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structural diagram of a vacuum circuit breaker with a guide device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an adjusting device according to an embodiment of the present invention;
fig. 3 is a schematic three-dimensional structure diagram of a vacuum circuit breaker with a guiding device according to an embodiment of the present invention.
In the above FIGS. 1-3:
the device comprises a frame 1, an operating mechanism 2, a spindle system 3, a vacuum arc extinguish chamber assembly (solid-sealed polar pole) 4, a driving crank arm 5, a connecting rod 6, an adjusting nut 7, a rotating block 8, a locking nut 9, a driving crank arm 10, a driving pin 11 and an insulating pull rod 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic cross-sectional view of a vacuum circuit breaker with a guide device according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of an adjusting device according to an embodiment of the present invention; fig. 3 is a schematic three-dimensional structure diagram of a vacuum circuit breaker with a guiding device according to an embodiment of the present invention.
The utility model provides a vacuum circuit breaker with guider, including frame 1 and the operating mechanism 2 of setting on frame 1, main shaft system 3, drive connecting lever 5, connecting rod 6, transmission connecting lever 10, drive pin 11 and insulating pull rod 12, vacuum interrupter assembly (solid seal utmost point post) 4, be provided with the guide way on frame 1, wherein, drive connecting lever 5, connecting rod 6, transmission connecting lever 10 articulate in proper order, insulating pull rod 12 passes through drive pin 11 fixed connection with transmission connecting lever 10, what transmission connecting lever 10 rotated sets up on frame 1, after giving the instruction of closing a floodgate, operating mechanism 2 closes a floodgate, main shaft system 3 rotates and drives drive connecting lever 5 anticlockwise rotation, drive connecting lever 5, connecting rod 6, transmission connecting lever 10, frame 1 constitutes four-bar linkage, under the effect of drive connecting lever 5, transmission connecting lever 10 is synchronous anticlockwise rotation, under the leverage of drive connecting lever 10, and the transmission pin 11 and the insulating pull rod 12 move upwards along the guide groove to realize switching-on, and when a switching-off instruction is given, the operating mechanism 2 is switched off, and the main shaft system 3 rotates reversely.
The utility model provides a vacuum circuit breaker with a guiding device, a frame 1 is provided with a guiding structure, and forms a slide block structure, namely the guiding device, with a transmission crank arm 10, a transmission pin 11 and an insulation pull rod 12; the moving and static contacts of the vacuum arc extinguish chamber keep enough coaxiality when the moving end of the vacuum arc extinguish chamber moves (particularly when the vacuum arc extinguish chamber is switched on); the bounce of the moving contact during the closing action is reduced, the friction effect of the moving contact and the static contact caused by the electrodynamic force is also reduced, and fusion welding between the moving contact and the static contact is avoided, so that the reliability is improved.
Specifically, an adjusting device is further arranged between the connecting rod 6 and the transmission crank arm 10 and comprises a rotating block 8, the rotating block 8 moves on the end portion thread of the connecting rod 6, and the rotating block 8 is hinged to the transmission crank arm 10. The adjusting device also comprises an adjusting device and a locking device, the adjusting device drives the rotating block 8 to move on the end thread of the connecting rod 6, and the locking device fixes the rotating block 8. The adjusting means is an adjusting nut 7. The locking device is a locking nut 9. The overtravel and the opening distance of the circuit breaker can be changed.
Specifically, the operating mechanism 2 is a manual mechanism, or the operating mechanism 2 is an electric mechanism.
The utility model provides a vacuum circuit breaker with guider:
1) an insulating pull rod 12 with a fixed installation structure is adopted, so that the transmission connecting lever 10 and the frame 1 can be hinged through a transmission pin 11 to form a sliding block structure;
2) through adjusting connecting rod 6, adjusting nut 7, turning block 8, lock nut 9, can conveniently change the overstroke of circuit breaker, open a distance, the manufacturability is good.
Compared with the prior art, the utility model provides a vacuum circuit breaker with guider has following beneficial effect:
the utility model discloses when realizing relevant function, it is few to use the part, and the part commonality is good, and the assembly is simple, and the reliability is high, and it is convenient to maintain, has solved and has produced the property ability contradiction. Provides a new product implementation scheme for industry manufacturers and power consumers, and is particularly suitable for high-capacity products.
After the vacuum circuit breaker is assembled and debugged to be qualified, the vacuum circuit breaker can normally act.
When the breaker is in an opening state, after a closing action instruction (electric/manual) is applied to the operating mechanism 2, the operating mechanism 2 performs closing action, and the driving connecting lever 5 is driven to rotate anticlockwise through the main shaft system 3; the driving crank arm 5, the connecting rod 6, the transmission crank arm 10 and the frame 1 form a four-bar linkage, and the transmission crank arm 10 synchronously rotates anticlockwise under the action of the driving crank arm 5; the frame 1, the transmission connecting lever 10, the transmission pin 11 and the insulating pull rod 12 form a slider structure, and under the lever action of the transmission connecting lever 10, the transmission pin 11 and the insulating pull rod 12 move upwards along the guide groove of the frame 1 to realize closing.
When the brake is opened, the moving direction is opposite to the closing direction.
By the structure, the moving and static contacts of the vacuum arc extinguish chamber keep enough coaxiality when the moving end of the vacuum arc extinguish chamber moves (particularly when the vacuum arc extinguish chamber is switched on); the bounce of the moving contact during the closing action is reduced, the friction effect of the moving contact and the static contact caused by the electrodynamic force is also reduced, and fusion welding between the moving contact and the static contact is avoided.
The utility model discloses when realizing relevant function, it is few to use the part, and the part commonality is good, and the assembly is simple, and the reliability is high, and it is convenient to maintain, has solved and has produced the property ability contradiction. Provides a new product implementation scheme for industry manufacturers and power consumers, and is particularly suitable for high-capacity products.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A vacuum circuit breaker with a guide device is characterized by comprising a frame, an operating mechanism, a main shaft system, a driving crank arm, a connecting rod, a driving crank arm, a driving pin and an insulating pull rod, wherein the operating mechanism, the main shaft system, the driving crank arm, the connecting rod, the driving crank arm, the driving pin and the insulating pull rod are arranged on the frame, a guide groove is arranged on the frame, wherein,
the driving crank arm, the connecting rod and the transmission crank arm are sequentially hinged, the insulating pull rod is fixedly connected with the transmission crank arm through the transmission pin, the transmission crank arm is rotatably arranged on the frame,
when a closing instruction is given, the operating mechanism is closed, the main shaft system rotates to drive the driving connecting lever to rotate anticlockwise, the driving connecting lever, the connecting rod, the transmission connecting lever and the frame form a four-bar mechanism, the transmission connecting lever synchronously rotates anticlockwise under the action of the driving connecting lever, the transmission pin and the insulation pull rod move upwards along the guide groove under the lever action of the transmission connecting lever to realize closing,
and when a brake-separating instruction is given, the operating mechanism separates the brake, and the main shaft system reversely rotates.
2. The vacuum circuit breaker with guide device according to claim 1, wherein an adjusting device is further provided between the connecting rod and the transmission crank arm,
the adjusting device comprises a rotating block,
the rotating block moves on the end thread of the connecting rod, and the rotating block is hinged with the transmission crank arm.
3. Vacuum interrupter with guiding device according to claim 2, characterized in that the adjusting device further comprises an adjusting device and a locking device,
the adjusting device drives the rotating block to move on the end thread of the connecting rod, and the locking device fixes the rotating block.
4. Vacuum interrupter with guiding device according to claim 3, characterized in that the adjusting device is an adjusting nut.
5. Vacuum interrupter with guiding device according to claim 3, characterized in that the locking device is a lock nut.
6. The vacuum circuit breaker with guide apparatus of claim 1, wherein the operating mechanism is a manual mechanism.
7. The vacuum circuit breaker with guide apparatus of claim 6, wherein the operating mechanism is an electric mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605094.XU CN210245399U (en) | 2019-09-25 | 2019-09-25 | Vacuum circuit breaker with guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605094.XU CN210245399U (en) | 2019-09-25 | 2019-09-25 | Vacuum circuit breaker with guiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210245399U true CN210245399U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921605094.XU Active CN210245399U (en) | 2019-09-25 | 2019-09-25 | Vacuum circuit breaker with guiding device |
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| Country | Link |
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| CN (1) | CN210245399U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151302A (en) * | 2020-09-29 | 2020-12-29 | 四川电器集团中电开关有限公司 | Sulfur hexafluoride circuit breaker control mechanism |
| CN114678237A (en) * | 2021-12-20 | 2022-06-28 | 国网上海市电力公司 | Pin shaft for circuit breaker, arc extinguish chamber using pin shaft and circuit breaker |
-
2019
- 2019-09-25 CN CN201921605094.XU patent/CN210245399U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112151302A (en) * | 2020-09-29 | 2020-12-29 | 四川电器集团中电开关有限公司 | Sulfur hexafluoride circuit breaker control mechanism |
| CN114678237A (en) * | 2021-12-20 | 2022-06-28 | 国网上海市电力公司 | Pin shaft for circuit breaker, arc extinguish chamber using pin shaft and circuit breaker |
| CN114678237B (en) * | 2021-12-20 | 2024-05-17 | 国网上海市电力公司 | Pin shaft for circuit breaker, arc extinguishing chamber using pin shaft and circuit breaker |
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