CN1436940A - Plunger-type insulated high-voltage oil cylinder - Google Patents
Plunger-type insulated high-voltage oil cylinder Download PDFInfo
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- CN1436940A CN1436940A CN 03115780 CN03115780A CN1436940A CN 1436940 A CN1436940 A CN 1436940A CN 03115780 CN03115780 CN 03115780 CN 03115780 A CN03115780 A CN 03115780A CN 1436940 A CN1436940 A CN 1436940A
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- plunger
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- resistant sleeve
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Abstract
The plunger-type insulated high-voltage oil cylinder as one mechanical product includes end cap, plunger, cylinder jacket, inner friction lining, sealing ring, outer friction lining and dustproof cover. The plunger includes nut, mandrel and jacket glued and interference fitted to the mandrel, and the inner friction lining, the sealing ring and the outer friction lining are interference fitted to the inner wall of the cylinder jacket and made to slide outside the plunger. The insulated cylinder may be used in charged equipment and even in high voltage field.
Description
Technical field
What the present invention relates to is a kind of High-Voltage Insulation oil cylinder, and particularly a kind of plunger type High-Voltage Insulation oil cylinder belongs to mechanical field.
Background technique
In livewire work,, often need to use some robot device to finish some function for raising the efficiency and ensure operator's safety.Hydraulic jack commonly used comes transmission campaign and power in these robot device.General plunger type single-action hydraulic cylinder is made up of plunger, cylinder barrel, cylinder cap etc., and material therefor is a metal.Find by literature search, the Zhang Chicheng chief editor, the teaching material " hydraulic transmission " that publish Geology Publishing House, Beijing in June nineteen ninety-five is gone up (the 104th page of chapter 4) has detailed introduction to metal plunger formula oil hydraulic cylinder.During work, high pressure oil enters the cylinder barrel from filler opening and promotes plunger outward and stretch out.Effect by load gravity or other external force in the time of oppositely makes plunger return.But because material therefor is a metal, so when livewire work, can not directly connect power part spare with oil cylinder.For guaranteeing the insulating properties requirement, the measure of taking at present is to install insulating mechanism additional in the front portion of metal oil cylinder or rear portion.Must increase mechanism size like this, increase the power and the complexity of system.And under high voltage environment, then do not allow to use the metal oil cylinder.
Summary of the invention
The objective of the invention is to situation at the hydraulic jack that does not have high voltage operations to use at present, a kind of plunger type High-Voltage Insulation oil cylinder is provided, make it under the high voltage situation, both can not influence High-Voltage Insulation, can directly drive power unit again and carry out livewire work, strengthen automation degree of equipment and flexibility greatly.
The present invention is achieved by the following technical solutions, the present invention mainly comprises: end cap, plunger, cylinder sleeve, interior wear-resistant sleeve, seal ring, outer wear-resistant sleeve, cylinder cap, dust ring lid, its Placement is: end cap and cylinder sleeve are by being threaded, cylinder sleeve and cylinder cap, dust ring lid are linked together by bolt, interior wear-resistant sleeve and outer wear-resistant sleeve and cylinder sleeve interference fit combine, seal ring is clipped in the middle of the inside and outside wear-resistant sleeve, plunger interior wear-resistant sleeve and outside slide in the wear-resistant sleeve, but plunger does not contact with inboard wall of cylinder liner.
Plunger comprises: nut, plug, overcoat, and the interference of overcoat gluing is enclosed within on the plug, and overcoat is positioned the afterbody of plug by screw thread by nut.Interior wear-resistant sleeve, seal ring, outer wear-resistant sleeve interference are arranged on the inwall of cylinder sleeve, and the outer inner room of interior wear-resistant sleeve, seal ring, outer wear-resistant sleeve and plunger is the gap slip.
During work, high pressure oil enters the cylinder sleeve from the hydraulic fluid port of end cap, promotes plunger and outwards moves along interior wear-resistant sleeve, seal ring, outer wear-resistant sleeve.Cylinder sleeve does not contact with plunger, the position of wear-resistant sleeve, seal ring, outer wear-resistant sleeve in cylinder cap is fixing.The dust ring lid stops that the dust of outside enters in the cylinder body.During backhaul, external force such as dependence gravity make plunger return.
Compare with traditional single-plunger type molten metal cylinder pressure, end cap of the present invention, cylinder sleeve, interior wear-resistant sleeve, outer wear-resistant sleeve, cylinder cap, dust ring lid, nut, plug all are the insulation combined material of epoxy resin fiberglass, and what changed the whole employings of molten metal cylinder pressure like is the situation of metallic material; The epoxy resin fiberglass material rubs mutually, surface at material will grind glass fiber, if cylinder sleeve and plunger directly use epoxy, cylinder sleeve will fluff and quicken the wearing and tearing of seal ring, oil cylinder can't normally use for a long time like this, and for avoiding the appearance of this kind situation, the present invention improves on the structure of plunger, at the outer wall bag of epoxy plunger one deck overcoat, it adopts insulation high-abrasive material teflon.
The present invention has substantive distinguishing features and remarkable progress, the present invention is because the characteristics of its insulating properties, therefore can work in charged workplace, charging equipment is operated, particularly can be applicable to the high voltage occasion, inconvenience and the economic loss that so both can avoid power operation to bring, operator's life safety in the time of can guaranteeing livewire work again.
Description of drawings
Fig. 1 cylinder structure schematic representation of the present invention
Fig. 2 oil cylinder piston structure of the present invention schematic representation
Embodiment
As shown in Figure 1, the present invention mainly comprises: end cap 1, plunger 2, cylinder sleeve 3, interior wear-resistant sleeve 4, seal ring 5, outer wear-resistant sleeve 6, cylinder cap 7, dust ring lid 8, its Placement is: end cap 1 and cylinder sleeve 3 are by being threaded, cylinder sleeve 3 and cylinder cap 5, dust ring lid 8 are linked together by bolt, interior wear-resistant sleeve 4 and outer wear-resistant sleeve 6 combine with cylinder sleeve 3 interference fit, seal ring 5 is clipped in the middle of the inside and outside wear-resistant sleeve, plunger 2 slip in interior wear-resistant sleeve 4 and outer wear-resistant sleeve 6.
As shown in Figure 2, plunger 2 comprises: nut 9, plug 10, overcoat 11, and overcoat 11 gluing interference are enclosed within on the plug 10, and overcoat 11 is positioned the afterbody of plug 10 by screw thread by nut 9.Interior wear-resistant sleeve 4, seal ring 5,6 interference of outer wear-resistant sleeve are arranged on the inwall of cylinder sleeve 3, and 11 in the overcoat of interior wear-resistant sleeve 4, seal ring 5, outer wear-resistant sleeve 6 and plunger 2 is to slide in the gap.
End cap 1, cylinder sleeve 3, interior wear-resistant sleeve 4, outer wear-resistant sleeve 6, cylinder cap 7, dust ring lid 8, nut 9, plug 10 all are the insulation combined material of epoxy resin fiberglass.
The outer wall bag of epoxy plunger 2 one deck overcoat 11, it adopts insulation high-abrasive material teflon.
Claims (4)
1, a kind of plunger type High-Voltage Insulation oil cylinder, mainly comprise: end cap (1), plunger (2), cylinder sleeve (3), interior wear-resistant sleeve (4), seal ring (5), outer wear-resistant sleeve (6), cylinder cap (7), dust ring lid (8), it is characterized in that plunger (2) comprising: nut (9), plug (10), overcoat (11), overcoat (11) gluing interference is enclosed within on the plug (10), overcoat (11) is positioned the afterbody of plug (10) by screw thread by nut (9), interior wear-resistant sleeve (4), seal ring (5), outer wear-resistant sleeve (6) interference is arranged on the inwall of cylinder sleeve (3), interior wear-resistant sleeve (4), seal ring (5), be to slide in the gap between the overcoat (11) of outer wear-resistant sleeve (6) and plunger (2).
2, plunger type High-Voltage Insulation oil cylinder according to claim 1, it is characterized in that end cap (1) and cylinder sleeve (3) are by being threaded, cylinder sleeve (3) is linked together by bolt with cylinder cap (5), dust ring lid (8), interior wear-resistant sleeve (4) and outer wear-resistant sleeve (6) combine with cylinder sleeve (3) interference fit, seal ring (5) is clipped in the middle of the inside and outside wear-resistant sleeve, plunger (2) interior wear-resistant sleeve (4) and outside slide in the wear-resistant sleeve (6).
3, plunger type High-Voltage Insulation oil cylinder according to claim 1 and 2, it is characterized in that epoxy plunger (2) the outer wall bag one deck overcoat (11), it adopts insulation high-abrasive material teflon.
4, plunger type High-Voltage Insulation oil cylinder according to claim 1 is characterized in that end cap (1), cylinder sleeve (3), interior wear-resistant sleeve (4), seal ring (5), outer wear-resistant sleeve (6), cylinder cap (7), dust ring lid (8), nut (9), plug (10) all are the insulation combined material of epoxy resin fiberglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031157807A CN1300491C (en) | 2003-03-13 | 2003-03-13 | Plunger-type insulated high-voltage oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031157807A CN1300491C (en) | 2003-03-13 | 2003-03-13 | Plunger-type insulated high-voltage oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1436940A true CN1436940A (en) | 2003-08-20 |
| CN1300491C CN1300491C (en) | 2007-02-14 |
Family
ID=27634320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031157807A Expired - Fee Related CN1300491C (en) | 2003-03-13 | 2003-03-13 | Plunger-type insulated high-voltage oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1300491C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598157A (en) * | 2009-06-30 | 2009-12-09 | 无锡市海航电液伺服系统有限公司 | A kind of tensioning hydro-cylinder of improvement |
| CN101936392A (en) * | 2010-08-20 | 2011-01-05 | 张家港市广大机械锻造有限公司 | Sealing device for cylinder plunger |
| CN101387197B (en) * | 2008-10-22 | 2012-08-22 | 中国石油集团长城钻探工程有限公司 | Non-magnetic wear-resistant sleeve of logging-while-drilling tool |
| CN103375527A (en) * | 2012-04-19 | 2013-10-30 | Zf腓特烈斯哈芬股份公司 | Piston-cylinder unit |
| CN104482199A (en) * | 2014-11-03 | 2015-04-01 | 无锡市百顺机械厂 | Oil cylinder cover anti-loose structure in oil cylinder |
| CN112460097A (en) * | 2020-11-02 | 2021-03-09 | 广东电网有限责任公司广州供电局 | Wear-resistant insulating oil cylinder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4757751A (en) * | 1987-05-26 | 1988-07-19 | Ingersoll-Rand Company | Ram couling and cylinder end seal assembly for high pressure cylinder |
| DE4119840A1 (en) * | 1991-06-13 | 1992-12-17 | Tro Transformatoren Und Schalt | Low space requirement piston sealing system for high voltage switch - has adjacent, radially slit sealing rings of rectangular cross=section which are joined loosely by pin |
| DE20023733U1 (en) * | 2000-12-20 | 2005-12-01 | Elringklinger Ag | Gasket e.g. for cylinder head has electrically insulating coating on outer sealing layer |
| CN2517915Y (en) * | 2001-04-21 | 2002-10-23 | 王同义 | Novel pressure cylinder |
-
2003
- 2003-03-13 CN CNB031157807A patent/CN1300491C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387197B (en) * | 2008-10-22 | 2012-08-22 | 中国石油集团长城钻探工程有限公司 | Non-magnetic wear-resistant sleeve of logging-while-drilling tool |
| CN101598157A (en) * | 2009-06-30 | 2009-12-09 | 无锡市海航电液伺服系统有限公司 | A kind of tensioning hydro-cylinder of improvement |
| CN101936392A (en) * | 2010-08-20 | 2011-01-05 | 张家港市广大机械锻造有限公司 | Sealing device for cylinder plunger |
| CN101936392B (en) * | 2010-08-20 | 2012-06-27 | 张家港市广大机械锻造有限公司 | Sealing device for cylinder plunger |
| CN103375527A (en) * | 2012-04-19 | 2013-10-30 | Zf腓特烈斯哈芬股份公司 | Piston-cylinder unit |
| CN103375527B (en) * | 2012-04-19 | 2016-12-28 | Zf腓特烈斯哈芬股份公司 | Piston cylinder devices |
| CN104482199A (en) * | 2014-11-03 | 2015-04-01 | 无锡市百顺机械厂 | Oil cylinder cover anti-loose structure in oil cylinder |
| CN112460097A (en) * | 2020-11-02 | 2021-03-09 | 广东电网有限责任公司广州供电局 | Wear-resistant insulating oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1300491C (en) | 2007-02-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20070214 Termination date: 20100313 |