CN221994367U - An oil buffer structure for ZN63A vacuum circuit breaker - Google Patents
An oil buffer structure for ZN63A vacuum circuit breaker Download PDFInfo
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- CN221994367U CN221994367U CN202420566729.4U CN202420566729U CN221994367U CN 221994367 U CN221994367 U CN 221994367U CN 202420566729 U CN202420566729 U CN 202420566729U CN 221994367 U CN221994367 U CN 221994367U
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- oil cylinder
- circuit breaker
- vacuum circuit
- movable rod
- piston block
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- 230000000694 effects Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 64
- 239000010720 hydraulic oil Substances 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 15
- 238000005381 potential energy Methods 0.000 abstract description 10
- 230000006378 damage Effects 0.000 abstract description 8
- 230000003139 buffering effect Effects 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
本实用新型涉及缓冲机构技术领域，尤其涉及一种ZN63A真空断路器的油缓冲结构。其主要针对现有的真空断路器在分闸的过程中，弹簧会瞬间释放缓冲时挤压的势能，其瞬间产生的势能会对真空断路器中造成伤害，长此以往会导致其使用寿命降低的问题，提出如下技术方案：包括移动触头，所述移动触头的底部连接有便于带动移动触头移动的第一活动杆，所述第一活动杆的底端连接有便于带动第一活动杆活动的第一活塞块，所述第一活塞块上套设有便于对移动状态下的第一活塞块进行缓冲的第一缓冲组件。本实用新型实现对弹簧产生的势能进行缓冲，避免在瞬间释放势能时对真空断路器造成伤害，进一步提升对其防护效果。
The utility model relates to the technical field of buffer mechanisms, and in particular to an oil buffer structure for a ZN63A vacuum circuit breaker. It is mainly aimed at the problem that in the process of opening the existing vacuum circuit breaker, the spring will instantly release the potential energy squeezed during the buffering, and the potential energy generated instantly will cause damage to the vacuum circuit breaker, which will lead to a reduction in its service life in the long run. The following technical solution is proposed: comprising a moving contact, the bottom of the moving contact is connected to a first movable rod that is convenient for driving the moving contact to move, the bottom end of the first movable rod is connected to a first piston block that is convenient for driving the first movable rod to move, and the first piston block is sleeved with a first buffer component that is convenient for buffering the first piston block in a moving state. The utility model achieves buffering of the potential energy generated by the spring, avoids damage to the vacuum circuit breaker when the potential energy is instantly released, and further improves its protection effect.
Description
Technical Field
The utility model relates to the technical field of buffer mechanisms, in particular to an oil buffer structure of a ZN63A vacuum circuit breaker.
Background
ZN63A is a common vacuum circuit breaker model. Vacuum circuit breakers are an important device for switching and protecting electrical equipment in an electrical power system. The control and disconnection of the current are realized by utilizing the magnetic field and the electric field in the environment with high vacuum degree. At present, when the vacuum circuit breaker is switched on and off, a spring is used for buffering the movable contact, so that impact force in the switching on and off process is relieved, equipment is protected, and the service life of the equipment is prolonged.
However, in the existing vacuum circuit breaker, the spring can instantly release the extruded potential energy during buffering, and the instant generated potential energy can cause damage to the vacuum circuit breaker, so that the service life of the vacuum circuit breaker is reduced.
Disclosure of utility model
The utility model aims to solve the problems in the prior art and provides an oil buffer structure of a ZN63A vacuum circuit breaker.
The technical scheme of the utility model is as follows: the utility model provides an oil buffer structure of ZN63A vacuum circuit breaker, includes the movable contact, the bottom of movable contact is connected with the first movable rod of being convenient for drive the movable contact and remove, the bottom of first movable rod is connected with the first piston block of being convenient for drive first movable rod activity, the cover is equipped with the first buffer unit that is convenient for cushion the first piston block under the mobile state on the first piston block, be provided with the second movable rod in the first buffer unit, the bottom of second movable rod is connected with the second piston block of being convenient for drive the second movable rod and remove, second buffer unit is installed on first buffer unit and the second piston block.
Preferably, the first buffer assembly comprises a first oil cylinder, the bottom of the first oil cylinder is connected with a second oil cylinder, and the diameter of the first oil cylinder is larger than that of the second oil cylinder.
Preferably, a first movable port is formed in the top of the first oil cylinder, and the bottom end of the first movable rod penetrates through the first movable port and then is arranged in the first oil cylinder.
Preferably, a flow pipeline is arranged on the inner wall of the second oil cylinder, the second movable rod is arranged in the second oil cylinder, and the second movable rod is positioned at the outlet of the flow pipeline.
Preferably, the bottom of the first oil cylinder is provided with a second movable port, the top of the second oil cylinder is in an opening state, and the first oil cylinder and the inside of the second oil cylinder are in a communicating state.
Preferably, the first piston block is arranged in the first oil cylinder, and hydraulic oil is arranged at the bottom of the first piston block in the second oil cylinder.
Preferably, the second buffer assembly comprises a sleeve plate, the sleeve plate is sleeved on the surface of the outer ring of the second piston block, a spring is connected to the top wall body of the sleeve plate, and the top end of the spring is connected with the bottom wall body of the first oil cylinder.
Compared with the prior art, the utility model has the following beneficial technical effects:
According to the utility model, through the cooperation of the sleeve plate and the spring, potential energy generated by the movable contact in the closing process is stored, so that the protection of the vacuum circuit breaker is realized, when the potential energy is released by the spring, the second piston block drives the sleeve plate to move, the spring is reset, the second movable rod is pressed down under the drive of the second piston block, hydraulic oil in the second oil cylinder is extruded, part of the hydraulic oil enters into the space at the top of the second movable rod through the flow pipeline, the potential energy generated by the reset of the spring is slowed down under the influence of the hydraulic oil in the moving process of the second movable rod, the damage to the vacuum circuit breaker is avoided, and the protection of the vacuum circuit breaker is further improved.
Drawings
FIG. 1 is a schematic perspective view of an oil buffer structure of a ZN63A vacuum circuit breaker;
fig. 2 is a schematic diagram of the front sectional structure of fig. 1.
Reference numerals: 1. a moving contact; 2. a first movable lever; 3. a first piston block; 4. a first cushioning assembly; 41. a first cylinder; 42. a second cylinder; 43. hydraulic oil; 5. a second movable rod; 6. a second piston block; 7. a second cushioning assembly; 71. a sleeve plate; 72. and (3) a spring.
Detailed Description
The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.
Examples
As shown in fig. 1-2, the oil buffer structure of the ZN63A vacuum circuit breaker provided by the utility model comprises a movable contact 1, wherein the top of a first piston block 3 is fixedly connected with the bottom end of a first movable rod 2, and the top end of the first movable rod 2 is fixedly connected with the bottom wall of the movable contact 1, so that the movable contact 1 can be driven to move by being matched with the first movable rod 2.
Further, a first buffer component 4 which is convenient for buffering the first piston block 3 in a moving state is sleeved on the first piston block 3, the first buffer component 4 comprises a first oil cylinder 41, the diameter of the first oil cylinder 41 is larger than that of a second oil cylinder 42, the first piston block 3 is arranged inside the first oil cylinder 41, the bottom end of the first movable rod 2 penetrates through a first movable opening formed in the top of the first oil cylinder 41, and the first movable opening is matched with the first movable rod 2 to assist the first piston block 3 to drive the movable contact 1 to move, so that the movable contact 1 can be contacted with another contact to complete closing; the top end of the second oil cylinder 42 is in an opening state and is arranged in a second movable port formed in the bottom of the first oil cylinder 41 to be matched with the second movable port, so that the second oil cylinder 42 is communicated with the inside of the first oil cylinder 41, hydraulic oil 43 is arranged below the first piston block 3 and is filled in the first oil cylinder 41 and the second oil cylinder 42, the subsequent buffering of the force in the closing and opening processes is facilitated, the damage to a vacuum circuit breaker is avoided, and the protection performance to the vacuum circuit breaker is improved; the second movable rod 5 is arranged in the second oil cylinder 42 and is arranged at the outlet of a flow pipeline formed in the inner wall of the second oil cylinder 42, so that hydraulic oil 43 can flow in the second oil cylinder 42 and the first oil cylinder 41, and damage to the second oil cylinder 42 caused by impact force generated in the resetting process of the subsequent second movable rod 5 is avoided; the third movable port is formed in the wall body at the bottom of the second oil cylinder 42, the top end of the second piston block 6 penetrates through the third movable port and is fixedly connected with the wall body at the bottom of the second movable rod 5, the bottom end of the second piston block 6 is connected with the driving end of electromagnetic driving equipment in the vacuum circuit breaker, the second piston block 6 is conveniently pushed to drive the second movable rod 5 to move, the second movable rod 5 is enabled to squeeze hydraulic oil 43 to flow in the rising process, the hydraulic oil 43 in the flowing state causes resistance to the movement of the second movable rod 5, the other contact damaged by the moving contact 1 in the closing process is avoided, the safety in the closing process is improved, the second movable rod 5 is buffered in the resetting process, and the damage to the second oil cylinder 42 in the resetting process is avoided.
Further, the first buffer assembly 4 and the second piston block 6 are provided with a second buffer assembly 7, the second buffer assembly 7 comprises a sleeve plate 71, and the sleeve plate 71 is fixedly sleeved on the outer ring surface of the second piston block 6, so that the second piston block 6 can conveniently drive the sleeve plate 71 to move in the moving process; the spring 72 sets up between the cover plate 71 and first hydro-cylinder 41, the top and the first hydro-cylinder 41 bottom wall fixed connection of spring 72, the bottom of spring 72 then with cover plate 71 top wall fixed connection, through the setting of spring 72, be favorable to making second piston piece 6 in the removal in-process, through the cooperation of cover plate 71 and spring 72, the power that produces when removing second piston piece 6 cushions, promote the protectiveness, simultaneously, because hydraulic oil 43's mobility for second movable rod 5 is in the reset process, be favorable to slowing down the potential energy that spring 72 produced in the reset process, avoid its release in the twinkling of an eye, cause the injury to equipment, further promote the protective effect.
The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.
Claims (7)
1. The utility model provides an oil buffer structure of ZN63A vacuum circuit breaker, includes moving contact (1), its characterized in that: the bottom of moving contact (1) is connected with first movable rod (2) that are convenient for drive moving contact (1) and remove, the bottom of first movable rod (2) is connected with first piston block (3) that are convenient for drive first movable rod (2) activity, the cover is equipped with first buffer module (4) that are convenient for cushion first piston block (3) under the mobile state on first piston block (3), be provided with second movable rod (5) in first buffer module (4), the bottom of second movable rod (5) is connected with second piston block (6) that are convenient for drive second movable rod (5) and remove, second buffer module (7) are installed on first buffer module (4) and second piston block (6).
2. The oil buffer structure of the ZN63A vacuum circuit breaker according to claim 1, characterized in that the first buffer assembly (4) comprises a first oil cylinder (41), the bottom of the first oil cylinder (41) is connected with a second oil cylinder (42), and the diameter of the first oil cylinder (41) is larger than the diameter of the second oil cylinder (42).
3. The oil buffer structure of the ZN63A vacuum circuit breaker according to claim 2, wherein the first movable port is provided at the top of the first oil cylinder (41), and the bottom end of the first movable rod (2) is provided in the first oil cylinder (41) after penetrating through the first movable port.
4. The oil buffer structure of the ZN63A vacuum circuit breaker according to claim 3, wherein the inner wall of the second oil cylinder (42) is provided with a flow pipeline, the second movable rod (5) is arranged in the second oil cylinder (42), and the second movable rod (5) is positioned at the outlet of the flow pipeline.
5. The oil buffer structure of the ZN63A vacuum circuit breaker according to claim 4, wherein a second movable port is opened at the bottom of the first oil cylinder (41), the top of the second oil cylinder (42) is in an open state, and the inside of the first oil cylinder (41) and the inside of the second oil cylinder (42) are in a communicating state.
6. The oil buffer structure of the ZN63A vacuum circuit breaker according to claim 5, characterized in that the first piston block (3) is arranged in a first oil cylinder (41), and the bottom of the first piston block (3) is provided with hydraulic oil (43) in a second oil cylinder (42).
7. The oil buffer structure of the ZN63A vacuum circuit breaker according to claim 6, characterized in that the second buffer assembly (7) comprises a sleeve plate (71), the sleeve plate (71) is sleeved on the outer ring surface of the second piston block (6), a spring (72) is connected to the top wall of the sleeve plate (71), and the top end of the spring (72) is connected to the bottom wall of the first oil cylinder (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420566729.4U CN221994367U (en) | 2024-03-22 | 2024-03-22 | An oil buffer structure for ZN63A vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420566729.4U CN221994367U (en) | 2024-03-22 | 2024-03-22 | An oil buffer structure for ZN63A vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221994367U true CN221994367U (en) | 2024-11-12 |
Family
ID=93375797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420566729.4U Active CN221994367U (en) | 2024-03-22 | 2024-03-22 | An oil buffer structure for ZN63A vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221994367U (en) |
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2024
- 2024-03-22 CN CN202420566729.4U patent/CN221994367U/en active Active
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