CN201629279U - Buffering device of circuit breaker operating mechanism for accelerating initial speed - Google Patents
Buffering device of circuit breaker operating mechanism for accelerating initial speed Download PDFInfo
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- CN201629279U CN201629279U CN201020158981XU CN201020158981U CN201629279U CN 201629279 U CN201629279 U CN 201629279U CN 201020158981X U CN201020158981X U CN 201020158981XU CN 201020158981 U CN201020158981 U CN 201020158981U CN 201629279 U CN201629279 U CN 201629279U
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- piston
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- spring
- piston cylinder
- tripping spring
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Abstract
The utility model relates to a buffering device which comprises a tripping spring shell, a tripping spring and a buffer arranged inside the tripping spring, wherein the buffer is a sealed cylinder body which is internally provided with a piston cylinder, and the cylinder body is sealed by the top of the piston cylinder; the cylinder body and the piston cylinder are internally provided with aviation fuel in a sealing manner; the side wall of the piston cylinder is provided with a fuel hole; the piston cylinder is internally provided with a piston rod capable of making reciprocating motion along a body of the piston cylinder and a buffering piston arranged at the bottom of the piston rod; the buffer is also internally provided with a speed accelerating spring, so that the buffering device has higher initial speed and buffering performance; and the buffering device is especially applicable to the operating mechanism of a high-voltage circuit breaker with 126KV and above.
Description
Technical field
The utility model relates to a kind of buffer unit, particularly relates to the buffer unit in a kind of breaker operation mechanism.
Background technology
Spring operating mechanism is most widely used a kind of operating mechanism in the vacuum circuit-breaker, it is little to have the operating power capacity, can adopt two kinds of power supplys of AC and DC, low cost and other advantages, compare with the other types operating mechanism, the structure more complicated of spring operating mechanism, higher to the parts requirement on machining accuracy.Spring operating mechanism is to split as dynamical element with spring to close the operating mechanism that carries out separating brake and closing operation, has certain limitation because the power of spring discharges, and therefore must improve by transmission mechanism.Therefore; some occur and be used for the oil bumper of spring operating mechanism; as Chinese patent CN101315849A disclosed " spring operating mechanism that cooperates 126KV vacuum circuit-breaker deciliter characteristic "; oil bumper is laid in tripping spring 1 inside used in this operating mechanism; this oil bumper is used to increase the buffer capacity of buffer; oil bumper and tripping spring fully absorb the dump energy that switching-in spring discharges in making process, and the protection frame is not damaged.Such oil bumper, though buffering effect is better, when separating brake, the first component velocity of tripping spring is fast inadequately, makes dynamic and static contact separate a large amount of electric arc that forms rapidly inadequately easily, and then the damage machine influences the safe in utilization of circuit breaker.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of can have the buffer unit that uses in the breaker operation mechanism of higher component velocity just, particularly a kind of buffer unit that is applicable to the 126KV high-voltage breaker operation mechanism at above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of breaker operation mechanism is accelerated the buffer unit of component velocity just, comprise the tripping spring shell, tripping spring and the buffer that is positioned at tripping spring, it is characterized in that: described buffer is the cylinder block of a sealing, cylinder block inside has piston cylinder and this this cylinder block of piston cylinder top seal, be sealed with aero oil in described cylinder block and the piston cylinder, has oilhole on the described piston cylinder sidewall, has the buffering piston that can prolong piston cylinder cylinder body pistons reciprocating bar and piston rod bottom in the described piston cylinder, described piston cylinder bottom is provided with spring base, and it is relative with buffering piston to be provided with the speed-raising spring in the spring base.
Preferably, the top of described tripping spring has tripping spring seat and contiguous block, and described tripping spring seat is connected piston rod with contiguous block; Oilhole on the described piston cylinder sidewall is different at least two in aperture.
Compared with prior art; advantage of the present utility model is: the buffer that in tripping spring, adds with and interior speed-raising spring; not only when closing a floodgate; the dump energy protection frame that absorbs switching-in spring release better is not damaged; more when separating brake; can have higher first component velocity, the generation and then the protective circuit breaker that reduce electric arc are not damaged by electric arc.
Description of drawings
Fig. 1 is the structure cut-away view of the utility model tripping spring behind separating brake.
Fig. 2 is the structure cut-away view of the utility model tripping spring when closing a floodgate.
Fig. 3 is for using the breaker operation mechanism opening and closing state schematic diagram of the utility model buffer unit, and 3a is the energy storage state not of separating brake, and 3b treats "on" position for energy storage, and 3c treats gate-dividing state for closing a floodgate.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Quickening of the present utility model is the buffer of component velocity just, shown in Fig. 1-2, comprise tripping spring shell 2 and the tripping spring 4 that is positioned at tripping spring shell 2, tripping spring 4 tops connect tripping spring seat 3 and are positioned at the contiguous block 1 of tripping spring seat 3 tops, has buffer 5 in the described tripping spring 4, buffer 5 is the cylinder block 11 of a sealing, be positioned at the aero oil 6 of cylinder block 11, cylinder block 11 inside also have a piston cylinder 12, this cylinder block 11 of the top seal of this piston cylinder 12, has buffering piston 7 in the piston cylinder 12, connect by piston rod 10 between buffering piston 7 and contiguous block 1 and the tripping spring seat 3, and contiguous block 1 drives piston rod 10 and buffering piston 7 can be reciprocating along cylinder body in piston cylinder 12.Piston cylinder 12 bottoms have a spring base 9, are provided with speed-raising spring 8 in the spring base 9, and speed-raising spring 8 is located in the piston cylinder 12 relative with buffering piston 7, and also has at least two oilholes 13 on piston cylinder 12 sidewalls.
This circuit breaker is when closing operation, shown in Fig. 3 a-3c, switching-in spring 28 energy storage among Fig. 3 b, making electromagnet is accepted behind the switching signal charged, the moving iron core adhesive of making electromagnet, drive the combined floodgate guide post and impact 20 actions of combined floodgate pallet, combined floodgate pallet 20 is (shown in Fig. 3 c) rotation counterclockwise, discharging simultaneously closes a floodgate keeps pallet 21, close a floodgate and keep the rotation of pallet 21 clockwise directions to discharge ratchet roller 22, ratchet 23 connecting lever 30 in clockwise direction under the effect of switching-in spring power (shown in Fig. 3 c) rotation and the 24 bump outputs of drive cam makes its (shown in Fig. 3 c) rotation counterclockwise, when combined floodgate puts in place, spacing pivot pin 25 is kept pallet 26 and separating brake pallet 27 to pin by separating brake, the outer connecting lever 40 drive pull bars of output that rotate simultaneously with connecting lever 30 in the output close a floodgate breaker body fast, compress tripping spring 4 energy storage simultaneously, in order to sub-switching operation.Particularly; during compression tripping spring 4; contiguous block 1 and piston rod 10 are downward; buffering piston 7 compression speed-raising springs 8; state as shown in Figure 2; this moment, the aero oil 6 of piston cylinder 12 inside flowed out from a plurality of oilholes 13 of inferior part of the cylinder block; aero oil 6 has formed damping action from the discharge of oilhole 13; absorbed dump energy better; and internal buffer 5 in have the speed-raising spring 8; a large amount of dump energies that can better switching-in spring be discharged in making process fully absorb storage, have played good buffer protection function.
Prior, shown in Fig. 3 c, tripping spring 4 energy storage, during sub-switching operation, tripping electromagnet is accepted behind the sub-gate signal charged, the moving iron core adhesive of tripping electromagnet, drive the separating brake guide post and impact 27 actions of separating brake pallet, separating brake pallet 27 is (shown in Fig. 3 a) rotation counterclockwise, discharge separating brake simultaneously and keep pallet 26, separating brake keeps the spacing pivot pin 25 of pallet 26 rotation release counterclockwise, and connecting lever 30 and the outer connecting lever 40 of output while clockwise direction (shown in Fig. 3 a) under the effect of tripping spring power rotate and drive pull bar and make the breaker body quick acting switching-off in exporting, simultaneously 5 cushioning effects of buffer.Particularly; piston rod 10 moves upward under the effect of tripping spring 4 and speed-raising spring 3; as shown in Figure 1; the aero oil 6 that piston rod 10 promotes in the piston cylinder 12 is discharged from the oilhole 13 on piston cylinder 12 tops; because the effect of speed-raising spring 8; make when separating brake; piston rod 10 has higher initial velocity; therefore make that also the first component velocity of separating brake is very fast; protected equipment not to be subjected to the infringement of electric arc; and aero oil 6 is discharged the effect that piston cylinder 12 produces damping action and speed-raising spring 8 by the oilhole 13 of piston cylinder 12 sidewalls, can absorb dump energy well, has played the effect of splitting lock cushioning.
Therefore in tripping spring 4, add oil bumper 5 and speed-raising spring 8, the absorption and the tripping spring 4 that not only can improve dump energy when closing a floodgate can store more energy, more effectively be, when separating brake, tripping spring 4 and speed-raising spring 8 can provide bigger first component velocity, make the separating brake initial velocity accelerate, and the electric arc of generation can not damage mechanism itself, and the buffering that helps dump energy absorbs, and is specially adapted in the operating mechanism of 126KV and above primary cut-out.And those skilled in the art can know, size by at least two oilholes on the regulating piston cylinder 12, particularly the top oilhole is different with the pore size of bottom oilhole, can control and close a floodgate or the damping action of oil extraction during separating brake, thereby control is closed a floodgate or speed and time during separating brake.
In addition to the implementation, the utility model also includes other execution modes, and the technical scheme that all employing equivalents or equivalent substitute mode form all should fall within the protection range of the utility model claim.
Claims (3)
1. a breaker operation mechanism is accelerated the buffer unit of component velocity just, comprise tripping spring shell (2), tripping spring (4) and be positioned at the buffer (5) of tripping spring (4), it is characterized in that: described buffer (5) is the cylinder block (11) of a sealing, cylinder block (11) inside has piston cylinder (12), and this piston cylinder (12) this cylinder block of top seal (11), be sealed with aero oil (6) in described cylinder block (11) and the piston cylinder (12), has oilhole (13) on described piston cylinder (12) sidewall, having in the described piston cylinder (12) can be along the buffering piston (7) of piston cylinder (12) cylinder body pistons reciprocating bar (10) and piston rod (10) bottom, described piston cylinder (12) bottom is provided with spring base (9), and it is relative with buffering piston (7) to be provided with speed-raising spring (8) in the spring base (9).
2. buffer unit as claimed in claim 1 is characterized in that: the top of described tripping spring (4) has tripping spring seat (3) and contiguous block (1), and described tripping spring seat (3) is connected piston rod (10) with contiguous block (1).
3. buffer unit as claimed in claim 1 is characterized in that: the oilhole (13) on described piston cylinder (12) sidewall is different at least two in aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020158981XU CN201629279U (en) | 2010-04-09 | 2010-04-09 | Buffering device of circuit breaker operating mechanism for accelerating initial speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020158981XU CN201629279U (en) | 2010-04-09 | 2010-04-09 | Buffering device of circuit breaker operating mechanism for accelerating initial speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201629279U true CN201629279U (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020158981XU Expired - Fee Related CN201629279U (en) | 2010-04-09 | 2010-04-09 | Buffering device of circuit breaker operating mechanism for accelerating initial speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201629279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709114A (en) * | 2021-12-20 | 2022-07-05 | 河南平高电气股份有限公司 | Spring operating mechanism and speed characteristic adjusting method before assembly thereof |
-
2010
- 2010-04-09 CN CN201020158981XU patent/CN201629279U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709114A (en) * | 2021-12-20 | 2022-07-05 | 河南平高电气股份有限公司 | Spring operating mechanism and speed characteristic adjusting method before assembly thereof |
| CN114709114B (en) * | 2021-12-20 | 2023-10-10 | 河南平高电气股份有限公司 | Spring operating mechanism and speed characteristic adjusting method before assembly thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151118 Address after: 315145 Yinzhou District Binhai investment Pioneering Center, Ningbo, Zhejiang Patentee after: Ningbo Weilong Complete Electrical Appliances Co., Ltd. Address before: 315121 Dongqian Lake Tourism Resort Industrial Zone, Zhejiang, Ningbo Patentee before: Shanghai Zhenhua Port Machinery (Group) Ningbo Transmission Machinery Co., Ltd. Patentee before: Zheng Ankang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20170409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |