CN101979957B - Oil-immersed sensor for locomotive - Google Patents
Oil-immersed sensor for locomotive Download PDFInfo
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- CN101979957B CN101979957B CN2010102812481A CN201010281248A CN101979957B CN 101979957 B CN101979957 B CN 101979957B CN 2010102812481 A CN2010102812481 A CN 2010102812481A CN 201010281248 A CN201010281248 A CN 201010281248A CN 101979957 B CN101979957 B CN 101979957B
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- housing
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- shell
- rotating shaft
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Abstract
The invention discloses an oil-immersed sensor for a locomotive, which consists of a conductive plastic angular displacement sensor, wherein the conductive plastic angular displacement sensor consists of a shell part, a rotating shaft part and a resistor body part; the shell part comprises a shell and a housing which are provided with leading-out ends integrated with the shell and the housing; the housing is integrated with the shell by screw threads to form a sealed space in which the rotating shaft part and the resistor body part are arranged; oil is filled in the sealed space; a rotating shaft of the rotating shaft part is extended out of the shell; the rotating shaft part is provided with an electric brush arm part which works on a substrate of a resistor body; the shell is provided with more than one oil hole; after the sealed space is filled with the oil, the oil holes are screwed by bolts; and the housing is provided with three or four flat leading-out ends. The oil-immersed sensor effectively prevents discharge breakdown on the contact surface of an electric brush and the resistor body under special conditions, reduces the coefficient of friction between the electric brush and the substrate surface of the resistor body, has greatly-prolonged service life, effectively ensures the reliability of contact between the electric brush and the surface of the resistor body, and outputs signals more stably and reliably with higher output accuracy.
Description
Technical field
The present invention relates to the novel sensor that a kind of half-sine wave that is produced by the angle variation controls, belong to the optical, mechanical and electronic integration field.
Background technology
Traditional contact angular displacement sensor is widely used in the dynamo-electric conversion elements in the Industry Control shunting in the optical, mechanical and electronic integration at present.Particularly, be applicable to the balanced system that controls in train and industrial automation field.But this type of working sensor limited service life, contact short circuit produces the Electromechanical Control field that spark does not allow to be used to have requirement of explosion proof, and usable range is restricted, poor stability.
Summary of the invention
The objective of the invention is to: solve the problems referred to above that conventional art exists, provide a kind of and overcome above-mentioned defective, guarantee reliability, the serviceable life of improving sensor that the conductive plastics sensor works, the locomotive oil immersion sensor that can prevent to produce discharge breakdown and the generation of discharge spark phenomenon under rugged surroundings because of electric reason brush and resistive element surface of contact.
The object of the invention is realized through following scheme: angular displacement conductive plastics sensor constitutes; Angular displacement conductive plastics sensor is made up of housing parts, rotating axis component and resistive element parts three parts, it is characterized in that: housing parts comprises housing and the case that has the exit that is connected as a single entity with it, and case connects as one the formation seal cavity through screw thread and housing; Built-in rotating axis component and resistive element parts; Injecting oil liquid in the sealing space, housing is extended in the rotating shaft of rotating axis component, and the brush arm parts are arranged on the rotating axis component; The brush arm parts are worked on the resistive element matrix; Housing is provided with one with upper oil hole, and fluid is filled with the back and screwed with screw, and case is provided with three or four flat exits.
Case according to the invention connects as one through screw thread and housing, adopts the sealing of O type first O-ring seal between the binding face.
Case top according to the invention is provided with dead eye, in the seal of rubber and plastic compound oil is housed.
Is furnished with O type second O-ring seal in the oilhole according to the invention.
Brush arm parts according to the invention adopt lever both arms girder construction.
Housing according to the invention is the stainless steel outer cover, and inside casing integral body is inlayed transparent plastic.
After the present invention improves existing angular displacement conductive plastics sensor construction; Inject extraordinary oil at sensor internal; And sealing fully, brush produces discharge breakdown with the resistive element surface of contact when preventing special circumstances thereby sensor is worked in the fluid of insulation fully, simultaneously because extraordinary oily lubrication; Reduce the friction factor of brush and resistive element basal plane, increased substantially the serviceable life of sensor.Because brush arm has adopted lever both arms girder construction; Guaranteed the equalising torque that brush arm is born when receiving bigger resistance when in fluid, working; Guarantee the contact reliability on brush and resistive element surface effectively, the output signal is more steadily reliable, and output accuracy is higher.
Description of drawings
Fig. 1 is a general structure synoptic diagram of the present invention;
Fig. 2 is an oilhole structural representation of the present invention;
Fig. 3 is that the embodiment of the invention 1 is installed view
Fig. 4 is that the embodiment of the invention 2 is installed view
Fig. 5 is a casing structure synoptic diagram of the present invention.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the present invention is elaborated.
Embodiment 1
Present embodiment is made up of angular displacement conductive plastics sensor, and angular displacement conductive plastics sensor is made up of housing parts, rotating axis component and resistive element parts three parts.Housing parts comprises housing 8 and the case 1 that has the exit 9 that is connected as a single entity with it; Case 1 connects as one the formation seal cavity through screw thread 13 and housing 8; And through 7 sealings of O type first O-ring seal, built-in rotating axis component and resistive element parts are filled with extraordinary fluid in the sealing space.Housing 8 is stainless steel 14 outer covers, and inside casing integral body is inlayed transparent plastic 15, visible inner fluid.Case is provided with three exits 9; Form screw thread flange 16 on exit 9 mounting holes, housing 8 tops are provided with dead eye, in rubber and plastic compound oil seal 5 is housed; The rotating shaft 6 of rotating axis component is stretched out housing 8 outer ends through dead eye and rubber oil sea circle, and rubber and plastic compound oil seal 5 and rotating shaft 6 are for closely cooperating.The brush arm parts 4 of lever both arms girder construction are arranged on the rotating axis component, and brush arm parts 4 are worked on resistive element matrix 3, and housing 8 is provided with 2 oilholes 12 that are convenient for changing fluid, and fluid is filled with the back and screwed with screw 10.All is furnished with an O type second O-ring seal 11 in the oilhole 12.
Embodiment 2
Case is provided with four flat band M3 screw thread flange exits 9, and one of them is arranged on the central axis, and other two are symmetrical set its both sides, another be used for ground connection and with the center of circle angle that is arranged at the exit on the central axis be 45 the degree.Other structure is identical with embodiment 1.
Claims (6)
1. a locomotive oil immersion sensor is made up of angular displacement conductive plastics sensor, and angular displacement conductive plastics sensor is made up of housing parts, rotating axis component and resistive element parts three parts; It is characterized in that: housing parts comprises housing (8) and the case (1) that has the exit (9) that is connected as a single entity with housing parts; Case (1) connects as one the formation seal cavity through screw thread and housing (8), built-in rotating axis component and resistive element parts, injecting oil liquid in the sealing space; Housing (8) is extended in the rotating shaft of rotating axis component (6); Brush arm parts (4) are arranged on the rotating axis component, and brush arm parts (4) are gone up work at resistive element matrix (3), and housing (8) is provided with one with upper oil hole (12); Fluid is filled with the back and is screwed with screw (10), and case (1) is provided with three or four flat exits (9).
2. locomotive oil immersion sensor according to claim 1 is characterized in that: case (1) connects as one through screw thread and housing (8), adopts O type first O-ring seal (7) sealing between the binding face.
3. locomotive oil immersion sensor according to claim 1 and 2 is characterized in that: housing (8) top is provided with dead eye, in rubber and plastic compound oil seal (5) is housed.
4. locomotive oil immersion sensor according to claim 1 and 2 is characterized in that: be furnished with O type second O-ring seal (11) in the oilhole (12).
5. locomotive oil immersion sensor according to claim 1 and 2 is characterized in that: brush arm parts (4) adopt lever both arms girder construction.
6. locomotive oil immersion sensor according to claim 1 and 2 is characterized in that: housing (8) is the stainless steel outer cover, and inside casing integral body is inlayed transparent plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102812481A CN101979957B (en) | 2010-09-14 | 2010-09-14 | Oil-immersed sensor for locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102812481A CN101979957B (en) | 2010-09-14 | 2010-09-14 | Oil-immersed sensor for locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101979957A CN101979957A (en) | 2011-02-23 |
| CN101979957B true CN101979957B (en) | 2012-03-14 |
Family
ID=43600475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102812481A Expired - Fee Related CN101979957B (en) | 2010-09-14 | 2010-09-14 | Oil-immersed sensor for locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101979957B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806816A (en) * | 2017-12-04 | 2018-03-16 | 江西天河传感器科技有限公司 | A kind of electric locomotive displacement conductive plastic sensor |
| CN111707184A (en) * | 2020-06-19 | 2020-09-25 | 广东世创科技有限公司 | Long-service-life multi-output sensor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4860394B2 (en) * | 2006-07-28 | 2012-01-25 | 愛三工業株式会社 | Sensor rotor for rotation angle sensor, throttle position sensor, device unit, and engine intake device |
| CN101354233B (en) * | 2008-08-04 | 2010-06-02 | 宁波市北仑机械电器有限公司 | Integrated multi-angle sensor |
| CN201364138Y (en) * | 2009-01-14 | 2009-12-16 | 江西天河传感器科技有限公司 | Angular displacement conductive plastic standard current output sensor |
| CN201532184U (en) * | 2009-07-17 | 2010-07-21 | 江西天河传感器科技有限公司 | Angular displacement conductive plastic frequency output sensor |
| CN101644560B (en) * | 2009-08-18 | 2011-06-08 | 宁波市北仑机械电器有限公司 | Angle displacement sensor for conductive plastic center tap |
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2010
- 2010-09-14 CN CN2010102812481A patent/CN101979957B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101979957A (en) | 2011-02-23 |
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Granted publication date: 20120314 Termination date: 20180914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |