CN202120778U - Oil buffer piston structure of high-voltage circuit breaker spring mechanism - Google Patents
Oil buffer piston structure of high-voltage circuit breaker spring mechanism Download PDFInfo
- Publication number
- CN202120778U CN202120778U CN2011201755848U CN201120175584U CN202120778U CN 202120778 U CN202120778 U CN 202120778U CN 2011201755848 U CN2011201755848 U CN 2011201755848U CN 201120175584 U CN201120175584 U CN 201120175584U CN 202120778 U CN202120778 U CN 202120778U
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- piston
- piston rod
- breaker spring
- spring mechanism
- utility
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Abstract
The utility model relates to an oil buffer piston structure of a high-voltage circuit breaker spring mechanism, comprising a piston rod and a piston disc. The piston disc is arranged on the bottom of the piston rod, the connection mode of the piston disc and the piston rod employs a screw thread connection mode and a copper welding mode, and the top end of the piston rod is equipped with an outer screw thread. The oil buffer piston structure of the high-voltage circuit breaker spring mechanism of the utility model acts an impact load generated by the operation of the high-voltage circuit breaker spring mechanism on the carbon steel structure piston rod, thereby solving the problem that the oil buffer piston is easy to distort when bears a bigger force, and improving the reliability of the mechanism.
Description
Technical field
The utility model relates to the oily damper piston structure of a kind of high-voltage breaker spring mechanism.
Background technology
The general adapted spring operating mechanism of producing both at home and abroad at present of 72.5kV-252kV primary cut-out; Wherein most of oil buffer that adopts; Its structure generally comprises oil storage cylinder, piston and end cover three parts; Piston is back and forth movement in oil cylinder, reaches the purpose of buffering through the flow of control hydraulic oil.Piston is the parts of unique motion in the whole buffer, and general oily piston rod and piston plate are formed, and there is certain impact in mechanism when operation, and requires mechanical endurance at 3000-10000 time, so piston will have favorable mechanical performance and resistance to wear.Usually piston adopts the whole turning moulding of aluminium bronze bar, and the low aluminium bronze simultaneously of aluminium bronze and steel friction fit coefficient has certain mechanical strength, this structure waste copper material, and production cost is higher; And making mechanism's clamping stagnation cause bigger accident when stressed deforming easily when big, reliability is relatively poor.
Summary of the invention
The purpose of the utility model is the oily damper piston structure of a kind of high-voltage breaker spring mechanism.
The technical scheme of the utility model is: the oily damper piston structure of a kind of high-voltage breaker spring mechanism; Comprise piston rod, piston plate; It is characterized in that: described piston plate is arranged at the bottom of piston rod; The connected mode of described piston plate and piston rod adopts to be threaded to be connected with brazing and combines, and described piston rod top is provided with external screw thread.
It is to be processed by the aluminium bronze material that the utility model has also designed described piston plate.
It is to be processed by carbon steel material that the utility model has also designed described piston rod.
The utility model has also designed described piston rod surface chromium plating.
The utility model adopts carbon steel machining piston bar, and chrome-plated process is adopted on the surface, strengthens antiseptic power; Threading in piston rod upper end maximum outside diameter place, machining internal thread and process cut on piston plate is fastened on piston rod that the back brazing welds on the piston plate; Impact loading when this structure is operated mechanism is on the piston rod of carbon steel structure, and mechanical strength is high, and the piston plate of copper material only plays wear-resisting effect; Simple in structure and save copper material, production cost is lower.
The beneficial effect of the utility model is: the impact loading when 1, the utility model will be operated in mechanism is on the piston rod of carbon steel structure, solved stressed yielding problem when big of oily damper piston, improved the reliability of mechanism.
2, the utility model piston rod surface adopts chrome-plated process, strengthens antiseptic power.
3, the simple in structure and saving copper material of the utility model, production cost is lower.
Description of drawings
Fig. 1 is the oily damper piston structural representation of a kind of high-voltage breaker spring of the utility model mechanism.
Embodiment
The oily damper piston structure of a kind of high-voltage breaker spring mechanism; Comprise piston rod 1, piston plate 2; It is characterized in that: described piston plate 2 is arranged at the bottom of piston rod 1; The connected mode of described piston plate 2 and piston rod 1 adopts to be threaded to be connected with brazing and combines, and described piston rod 1 top is provided with external screw thread 3.
It is to be processed by the aluminium bronze material that the utility model has also designed described piston plate 2.
It is to be processed by carbon steel material that the utility model has also designed described piston rod 1.
The utility model has also designed described piston rod 1 chrome-faced.
The utility model adopts carbon steel machining piston bar 1, and chrome-plated process is adopted on the surface, strengthens antiseptic power; Threading in maximum outside diameter place, piston rod 1 upper end, machining internal thread and process cut on piston plate 2 is fastened on piston rod 1 that the back brazing welds on the piston plate 2; Impact loading when this structure is operated mechanism is on the piston rod 1 of carbon steel structure, and mechanical strength is high, and 2 of the piston plates of copper material play wear-resisting effect; Simple in structure and save copper material, production cost is lower.
The beneficial effect of the utility model is: the impact loading when 1, the utility model will be operated in mechanism is on the piston rod 1 of carbon steel structure, solved stressed yielding problem when big of oily damper piston, improved the reliability of mechanism.
2, chrome-plated process is adopted on the utility model piston rod 1 surface, strengthens antiseptic power.
3, the simple in structure and saving copper material of the utility model, production cost is lower.
Claims (4)
1. the oily damper piston structure of a high-voltage breaker spring mechanism; Comprise piston rod (1), piston plate (2); It is characterized in that: described piston plate (2) is arranged at the bottom of piston rod (1); The connected mode of described piston plate (2) and piston rod (1) adopts to be threaded to be connected with brazing and combines, and described piston rod (1) top is provided with external screw thread (3).
2. the oily damper piston structure of a kind of high-voltage breaker spring according to claim 1 mechanism, it is characterized in that: described piston plate (2) is to be processed by the aluminium bronze material.
3. the oily damper piston structure of a kind of high-voltage breaker spring according to claim 1 mechanism, it is characterized in that: described piston rod (1) is to be processed by carbon steel material.
4. according to the oily damper piston structure of claim 1 or 3 described a kind of high-voltage breaker spring mechanisms, it is characterized in that: described piston rod (1) chrome-faced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201755848U CN202120778U (en) | 2011-05-30 | 2011-05-30 | Oil buffer piston structure of high-voltage circuit breaker spring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201755848U CN202120778U (en) | 2011-05-30 | 2011-05-30 | Oil buffer piston structure of high-voltage circuit breaker spring mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120778U true CN202120778U (en) | 2012-01-18 |
Family
ID=45461822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201755848U Expired - Fee Related CN202120778U (en) | 2011-05-30 | 2011-05-30 | Oil buffer piston structure of high-voltage circuit breaker spring mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202120778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287552A (en) * | 2013-06-27 | 2013-09-11 | 无锡市东舟船舶附件有限公司 | Piston rod lug structure for retractable fin stabilizer for ship |
-
2011
- 2011-05-30 CN CN2011201755848U patent/CN202120778U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287552A (en) * | 2013-06-27 | 2013-09-11 | 无锡市东舟船舶附件有限公司 | Piston rod lug structure for retractable fin stabilizer for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20130530 |