CN114242470B - Automatic oiling type wear-resistant contact for isolating switch - Google Patents
Automatic oiling type wear-resistant contact for isolating switch Download PDFInfo
- Publication number
- CN114242470B CN114242470B CN202111530322.3A CN202111530322A CN114242470B CN 114242470 B CN114242470 B CN 114242470B CN 202111530322 A CN202111530322 A CN 202111530322A CN 114242470 B CN114242470 B CN 114242470B
- Authority
- CN
- China
- Prior art keywords
- contact
- body section
- guide sections
- oil
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010687 lubricating oil Substances 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims description 68
- 238000005461 lubrication Methods 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/60—Auxiliary means structurally associated with the switch for cleaning or lubricating contact-making surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
Abstract
The invention relates to an automatic oiling type wear-resistant contact for an isolating switch, which comprises a contact body, wherein the contact body is formed by jointly connecting a body section and guide sections, the total number of the guide sections is two, the two guide sections are respectively connected to the same side of the body section in the long axis direction, the two guide sections are respectively positioned at two sides of the body section in the width direction, the guide sections are obliquely arranged, and the oblique direction of the guide sections gradually inclines towards the central axis direction of the body section from the side, connected with the body section, of the guide sections, so that the two guide sections are distributed in a splayed shape; the contact body is also provided with a self-lubricating mechanism. The invention has the advantages that: the contact body adopts a sectional structure of the body section and the guide section, so that the whole contact forms a self-operated contact finger structure, and the contact finger and the contact are lubricated through lubricating oil scraped by the contact finger when the contact finger contacts the contact, so that the wear resistance is improved.
Description
Technical Field
The invention relates to the field of isolating switches, in particular to an automatic oiling type wear-resistant contact for an isolating switch.
Background
In recent years, the requirements of users on the mechanical service lives of an isolating switch and a grounding switch are higher and higher, and the mechanical service life grades M0, M1 and M2 divided by standards of GB/T1985, DL/T486 and the like correspond to 1000 times, 3000 times and 10000 times of mechanical operation respectively, so that the mechanical service life of a railway system is required to be even more than 12000 times due to special use working conditions.
The isolating switch, the grounding switch contact and the contact finger which are applied to the market at present all adopt a copper surface tinning or silver plating scheme, the scheme does not have enough wear resistance, contact finger wear can occur when the mechanical operation is performed for more than 1000 times, contact and contact finger wear is serious when the mechanical operation is performed for more than 3000 times, surface plating layers can be ground off, and base material copper can also be worn.
In patent CN1588596a, a self-lubricating isolating switch contact is mentioned, which comprises a contact body of conductive metal, an intermediate layer is arranged on the contact body of conductive metal, and a coating layer containing graphite is arranged on the movable contact part of the intermediate layer. The contact body is copper and alloy thereof; the intermediate layer is silver and alloy thereof, or tin and alloy thereof; the thickness of the intermediate layer is 10-20 mu m; the thickness of the graphite-containing coating layer (30) is more than or equal to 80 mu m.
The contact is characterized in that a graphite-containing coating layer is additionally arranged on the contact to improve the contact, and the graphite coating layer can be utilized to play a certain abrasion-resistant effect when the contact is just started to be used, however, after the contact is used for a long time, graphite is worn, namely the graphite is gradually worn on a contact body, and finally the contact is worn, so that the subsequent use is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic oiling type wear-resistant contact for an isolating switch, which has good wear resistance and long service life.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides an automatic oiling formula wear-resisting contact for isolator which innovation point lies in: comprising
The contact body is formed by jointly connecting a body section and guide sections, the body section is rectangular, the two guide sections are respectively connected to the same side of the body section in the long axis direction, the two guide sections are respectively positioned at two sides of the body section in the width direction, the guide sections are obliquely arranged, and the oblique directions of the guide sections are gradually inclined to the central axis direction of the body section from the side, connected with the body section, of the guide sections, so that the two guide sections are distributed in a splayed shape;
the contact body is also provided with a self-lubricating mechanism, and the self-lubricating mechanism is as follows: two sides of the body section of the contact body are respectively provided with a lubricating oil duct, the lubricating oil ducts are provided with a notch extending out of the body section, the contact body is internally provided with a temporary storage runner for containing lubricating oil for circulation, and the two lubricating oil ducts are communicated with the temporary storage runner.
Furthermore, the temporary storage runner is in a shape of a Chinese character kou.
Further, the lubrication oil passage extends along the long axis direction of the body section, and the notch on the lubrication oil passage extends along the long axis direction of the lubrication oil passage, so that the whole lubrication oil passage is of an open structure.
Further, the connection part of the body section and the guide section is in arc transition.
Further, the contact body is further connected with a refueling mechanism, the refueling mechanism comprises an oil tank, the oil tank is arranged on the contact body through a contact bridge, an oil filling hole is further formed in one side, in contact with the contact bridge, of the oil tank, an oil conveying groove for containing oil to circulate is formed in the contact bridge, one side of the oil conveying groove is communicated with the oil filling hole of the oil tank, the other side of the oil conveying groove is communicated with a temporary storage runner, and a contact fixing plate is further arranged on the contact bridge, located beside the oil tank.
Furthermore, the two guide sections of the contact body are formed by bending round-edge copper buses.
The invention has the advantages that: according to the invention, the contact is improved, the contact body adopts a sectional structure with the body section and the guide section matched, so that the whole contact forms a self-operated contact finger structure, the guide section of the contact finger in a closing state deforms and expands, the guide section in a separating state deforms and recovers, and the contact position of the contact finger and the contact is lubricated through lubricating oil scraped by the contact finger when the contact finger contacts the contact through the additionally arranged self-lubricating mechanism, thereby achieving the purposes of reducing friction, improving wear resistance and prolonging service life.
In addition, through the cooperation of self-lubricating mechanism, in the in-process that contact finger and contact, the contact area of contact, contact finger is cleared up through the lubricating oil dragon emperor that the contact finger scraped, gets rid of the dust on the surface, possesses self-cleaning function.
The temporary storage runner is designed into a structure in a shape like a Chinese character kou, so that the storage amount of oil in the temporary storage runner can be increased on the basis of ensuring the structural strength of the contact body, and a basis is provided for continuous oil supply of a subsequent lubricating oil duct.
The same length with the lubrication oil duct is designed to the incision on the lubrication oil duct to thereby make whole lubrication oil duct be open-type structure, thereby this design has increased the play oil volume of lubrication oil duct, makes the contact finger can scrape out lubricating oil as far as possible when with the contact on the basis of avoiding the fluid extravagant, realizes the lubrication between contact finger and the contact, greatly reduced friction between the two, the reduction wearing and tearing improves wear resistance, improves life.
The arc transition mode is adopted at the joint of the body section and the guide section, so that the surface is smoother and has no sharp angle, and the abrasion is effectively reduced in the opening and closing process.
The design of the oiling mechanism on the contact body can continuously supply oil for the lubricating oil duct on the contact through the mutual matching of the oil tank, the contact bridge and other parts, so that the lubricating oil duct is ensured to be in a full oil state for a long time, and the cruising ability is improved.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic view of an automatic oiling wear contact for a disconnector of the present invention.
Fig. 2 is a front view of an automatic oiling type wear-resistant contact for a disconnecting switch in the invention.
Fig. 3 is a B-B cross-sectional view of fig. 2.
Fig. 4 is a schematic view of a fueling mechanism in accordance with the present invention.
Fig. 5 is a bottom view of the fueling mechanism of the present invention.
Figure 6 is a cross-sectional view A-A of figure 5.
Fig. 7 is a schematic diagram illustrating a mated state of a contact and a contact finger in the present invention.
Detailed Description
The following examples will provide those skilled in the art with a more complete understanding of the present invention and are not intended to limit the invention to the embodiments described.
An automatic oiling type wear-resistant contact for a disconnecting switch as shown in figures 1-7, comprising
The contact body is formed by jointly connecting a body section 1 and guide sections 2, the body section 1 is rectangular, the guide sections 2 are two in total and are respectively connected to the same side of the body section 1 in the long axis direction, and the two guide sections 2 are respectively positioned on two sides of the body section 1 in the width direction.
The two guide sections 2 of the contact body are formed by bending round-edge copper buses, the joint of the body section 1 and the guide section 2 is in arc transition, namely, the outer side wall of the joint of the body section 1 and the guide section 2 is in arc transition, and the inner side wall of the joint of the body section 1 and the guide section 2 is also in arc transition. The arc transition mode is adopted at the joint of the body section 1 and the guide section 2, so that the surface is smoother and has no sharp angle, and the abrasion is effectively reduced in the opening and closing process.
The guide section 2 is obliquely arranged, and the oblique direction of the guide section 2 is gradually inclined to the central axis direction of the body section 1 from the side, connected with the body section 1, of the guide section 2, so that the two guide sections 2 are distributed in a splayed shape, the gap on one side, away from the body section 1, of the two guide sections 2 is smaller than the gap on one side, connected with the body section 1, of the two guide sections 2, and one side, away from the body section 1, of the two guide sections 2 is not contacted.
The contact body is also provided with a self-lubricating mechanism, and the self-lubricating mechanism is as follows: two sides of the body section 1 of the contact body are respectively provided with a lubrication oil duct 3, the lubrication oil duct 3 is provided with a notch extending out of the body section, the lubrication oil duct 3 extends along the long axis direction of the body section, and the notch on the lubrication oil duct 3 extends along the long axis direction of the lubrication oil duct, so that the whole lubrication oil duct 3 is of an open type structure. The same length as the lubricating oil duct 3 is designed for the notch on the lubricating oil duct 3, so that the whole lubricating oil duct 3 is of an opening structure, the oil outlet amount of the lubricating oil duct is increased by the design, the contact fingers can scrape out lubricating oil as much as possible on the basis of avoiding oil waste when in contact with the contact, lubrication between the contact fingers and the contact is realized, friction between the contact fingers and the contact is greatly reduced, abrasion is reduced, the wear resistance is improved, and the service life is prolonged.
As can be seen from the schematic diagram shown in fig. 3, a temporary storage runner 4 for allowing lubricating oil to circulate is provided in the body section 1 of the contact body, and two lubricating oil channels 3 are both communicated with the temporary storage runner 4, and the temporary storage runner 4 supplies oil for the lubricating oil channels 3.
The temporary storage runner 4 is in a shape of a Chinese character kou, four edges of the temporary storage runner 4 are respectively in one-to-one correspondence with four edges of the body section 1, and the four edges of the temporary storage runner 4 are as close to the four edges of the body section 1 as possible. The temporary storage runner 4 is designed into a structure in a shape like a Chinese character kou, so that the storage amount of oil in the temporary storage runner 4 can be increased on the basis of ensuring the structural strength of the contact body, a basis is provided for continuous oil supply of the subsequent lubricating oil duct 3, and oil supply breakage is avoided.
The contact body is also connected with a refueling mechanism, as shown in the schematic diagram of fig. 4, the refueling mechanism comprises an oil tank 5, the oil tank 5 is arranged on the contact body through a contact bridge 6, the body section 1 of the contact body is fixed with the contact bridge 6 through a bolt, the oil tank 5 is fixed with the contact bridge 6 through a screw, one side of the oil tank 5, which is contacted with the contact bridge 6, is also provided with an oil filling hole, an oil conveying groove 7 for containing oil to circulate is arranged in the contact bridge 6, one side of the oil conveying groove 7 is communicated with the oil filling hole of the oil tank, the other side of the oil conveying groove 7 is communicated with a temporary storage runner 4, a contact fixing plate 8 is also arranged beside the oil tank 5 on the contact bridge, and the contact fixing plate 8 is fixed with the contact bridge 6 through a bolt.
When the switch-on operation is performed, firstly, lubricating oil in the oil tank 5 flows into the oil conveying groove 7 from the oil filling hole, then enters the temporary storage runner 4 from the oil conveying groove 7, finally enters the lubricating oil duct 3 from the temporary storage runner 4, and part of lubricating oil overflows from a notch of the lubricating oil duct 3.
According to the automatic oiling type wear-resistant contact for the isolating switch, the contact is improved, the contact body adopts the sectional structure of the body section 1 and the guide section 2, so that the whole contact forms a self-operated contact finger structure, the guide section 2 of the contact finger in a closing state deforms and expands, the guide section 2 in a separating state deforms and recovers, and abrasion of the contact finger in the contact process is reduced.
The contact part of the contact finger and the contact can be lubricated by the lubricating oil scraped by the contact finger when the contact finger is contacted with the contact by the self-lubricating mechanism, so that the aim of reducing friction is fulfilled, the wear resistance is improved, and the service life is prolonged; in addition, through the cooperation of self-lubricating mechanism, in the in-process that contact finger and contact, the contact area of contact, contact finger is cleared up through the lubricating oil dragon emperor that the contact finger scraped, gets rid of the dust on the surface, possesses self-cleaning function.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. An automatic oiling type wear-resistant contact for an isolating switch is characterized in that: comprising
The contact body is formed by jointly connecting a body section and guide sections, the body section is rectangular, the two guide sections are respectively connected to the same side of the body section in the long axis direction, the two guide sections are respectively positioned at two sides of the body section in the width direction, the guide sections are obliquely arranged, and the oblique directions of the guide sections are gradually inclined to the central axis direction of the body section from the side, connected with the body section, of the guide sections, so that the two guide sections are distributed in a splayed shape;
the contact body is also provided with a self-lubricating mechanism, and the self-lubricating mechanism is as follows: two sides of the body section of the contact body are respectively provided with a lubricating oil duct, the lubricating oil ducts are provided with a notch extending out of the body section, the contact body is internally provided with a temporary storage runner for lubricating oil circulation, and the two lubricating oil ducts are communicated with the temporary storage runner;
the contact body is also connected with a oiling mechanism, the oiling mechanism comprises an oil tank, the oil tank is arranged on the contact body through a contact bridge, an oil filling hole is further formed in one side, which is contacted with the contact bridge, of the oil tank, an oil conveying groove for containing oil to circulate is formed in the contact bridge, one side of the oil conveying groove is communicated with the oil filling hole of the oil tank, the other side of the oil conveying groove is communicated with a temporary storage runner, and a contact fixing plate is further arranged on the side, which is positioned on the oil tank, of the contact bridge.
2. The automatic oiling wear contact for a disconnector of claim 1, characterized in that: the temporary storage runner is in a shape of a Chinese character kou.
3. The automatic oiling wear contact for a disconnector of claim 1, characterized in that: the lubrication oil duct extends along the long axis direction of the body section, and the notch on the lubrication oil duct extends along the long axis direction of the lubrication oil duct, so that the whole lubrication oil duct is of an open structure.
4. The automatic oiling wear contact for a disconnector of claim 1, characterized in that: the junction of body section and direction section is arc transition.
5. The automatic oiling wear contact for a disconnector of claim 1, characterized in that: the two guide sections of the contact body are formed by bending round-edge copper buses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111530322.3A CN114242470B (en) | 2021-12-15 | 2021-12-15 | Automatic oiling type wear-resistant contact for isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111530322.3A CN114242470B (en) | 2021-12-15 | 2021-12-15 | Automatic oiling type wear-resistant contact for isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114242470A CN114242470A (en) | 2022-03-25 |
| CN114242470B true CN114242470B (en) | 2023-12-01 |
Family
ID=80756015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111530322.3A Active CN114242470B (en) | 2021-12-15 | 2021-12-15 | Automatic oiling type wear-resistant contact for isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114242470B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588596A (en) * | 2004-08-26 | 2005-03-02 | 许晓欢 | Self lubricating isolated switch cotnactor and coating method for contactor surface |
| CN204257566U (en) * | 2014-10-23 | 2015-04-08 | 德力西电气有限公司 | A kind of breaker contact system and circuit breaker |
| CN205751986U (en) * | 2016-05-10 | 2016-11-30 | 德雷希尔(西安)电气有限公司 | A kind of safe and reliable, non-maintaining indoor direct-current isolating switch |
| CN106783352A (en) * | 2016-11-25 | 2017-05-31 | 江苏省如高高压电器有限公司 | A kind of disconnecting switch clapper-type galvanic circle |
| CN210516580U (en) * | 2019-09-18 | 2020-05-12 | 刘一琛 | Contact device of isolating switch |
| CN214477145U (en) * | 2021-04-15 | 2021-10-22 | 北京华美煜力电力技术有限公司 | Contact of high-voltage isolating switch and high-voltage isolating switch with same |
-
2021
- 2021-12-15 CN CN202111530322.3A patent/CN114242470B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588596A (en) * | 2004-08-26 | 2005-03-02 | 许晓欢 | Self lubricating isolated switch cotnactor and coating method for contactor surface |
| CN204257566U (en) * | 2014-10-23 | 2015-04-08 | 德力西电气有限公司 | A kind of breaker contact system and circuit breaker |
| CN205751986U (en) * | 2016-05-10 | 2016-11-30 | 德雷希尔(西安)电气有限公司 | A kind of safe and reliable, non-maintaining indoor direct-current isolating switch |
| CN106783352A (en) * | 2016-11-25 | 2017-05-31 | 江苏省如高高压电器有限公司 | A kind of disconnecting switch clapper-type galvanic circle |
| CN210516580U (en) * | 2019-09-18 | 2020-05-12 | 刘一琛 | Contact device of isolating switch |
| CN214477145U (en) * | 2021-04-15 | 2021-10-22 | 北京华美煜力电力技术有限公司 | Contact of high-voltage isolating switch and high-voltage isolating switch with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114242470A (en) | 2022-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114242470B (en) | Automatic oiling type wear-resistant contact for isolating switch | |
| CN210516580U (en) | Contact device of isolating switch | |
| CN102714402B (en) | Gas insulated switchgear | |
| CN201027811Y (en) | Bimetallic bearing with sprayed lubricating layer | |
| CN208935172U (en) | A kind of cylindrical roller bearing | |
| US20080036162A1 (en) | Chips Dischargeable Wiper | |
| US8225686B2 (en) | Chips dischargeable wiper | |
| CN211788777U (en) | Low-resistance contact for high-voltage isolating switch and special cleaning tool thereof | |
| CN209638244U (en) | A kind of new automobile bearing shell | |
| CN109494538B (en) | Low-abrasion traveling crane current collector sliding block | |
| CN103452974B (en) | T-shaped bond structure | |
| CN203214615U (en) | Bearing bush | |
| CN209026017U (en) | A kind of concentric rib bushing | |
| CN218863092U (en) | Stable and durable linear guide rail | |
| CN207670238U (en) | A kind of side is by stream section insulator | |
| CN218093861U (en) | Rotating shaft for increasing torsion | |
| CN213472863U (en) | Copper-aluminum composite contact rail | |
| CN212225803U (en) | Wear-resistant shaft sleeve | |
| CN220168364U (en) | Copper bush capable of automatically compensating lubrication | |
| CN216648692U (en) | Corrosion-resistant electronic product connecting piece | |
| CN215487237U (en) | Bearing bush of high-rotating-speed heavy-load sliding bearing | |
| CN218152968U (en) | Wear-resisting type pipe fitting elbow | |
| CN213383734U (en) | Front axle connecting structure of 15t excavator and 15t excavator | |
| CN212615555U (en) | Wear-resistant steering impeller pump oil distribution disc | |
| CN220890338U (en) | Wear-resisting piston structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |