CN203642865U - Wet linear displacement feedback potentiometer - Google Patents
Wet linear displacement feedback potentiometer Download PDFInfo
- Publication number
- CN203642865U CN203642865U CN201320828287.8U CN201320828287U CN203642865U CN 203642865 U CN203642865 U CN 203642865U CN 201320828287 U CN201320828287 U CN 201320828287U CN 203642865 U CN203642865 U CN 203642865U
- Authority
- CN
- China
- Prior art keywords
- component
- brush
- base member
- feedback potentiometer
- seat
- 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.)
- Expired - Lifetime
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Images
Abstract
The utility model discloses a wet linear displacement feedback potentiometer. One end of a resistor part penetrates through a shell and a brush holder component, the other end of the resistor component extends into a seat component, the brush holder component comprises multi-finger brushes and a brush holder, the brush holder component is fixedly connected with the shell via the brush holder, the multi-finger brushes are fixed on the brush holder and are respectively contacted with a resistor film and a conductive strip of the resistor component, the seat component comprises a seat body and a terminal, and the terminal is arranged in the seat body, and is sealed and packaged. The terminal extends out of the seat body at a wire inlet end of the seat body close to the brush holder component, a conducting wire is led out at one end of the resistor component close to the seat component, the conducting wire penetrates through the terminal and is led out at an wire outlet end of the seat component, and the wire outlet end of the seat component is sealed and packaged. According to the wet linear displacement feedback potentiometer, the seat component formed by the cooperation of seat body and the terminal is employed so that the wet linear displacement feedback potentiometer can operate in the wet environment, the sealing and the insulation are good, and the reliable usage of the feedback potentiometer in the harsh environment of high voltage oil is creatively realized.
Description
Technical field
The utility model belongs to displacement transducer field, particularly a kind of wet type straight-line displacement feedback potentiometer.
Background technology
Potentiometer is a kind of sensing element that mechanical shift or corner is converted to Voltage-output.In solid missile thrust vectoring control servo-drive system, adopt resistance-type potentiometer as position feedback elements more.
In the servo-drive system of a lot of models, feedback potentiometer is the synthetic film potentiometer of a kind of straight-line displacement, and it and pressurized strut are coaxially installed, and its brush is driven and formed armature contact by piston rod; Resistive element mid point (electric midstroke) is that center tap is earth point, and the contact at two ends connects respectively the positive and negative electrode of power supply.Potential difference (PD) between brush and center tap has reflected the displacement of piston apart from meta.On the matrix of resistive element, bus is installed in parallel in resistive film side, and both are spaced-apart.Brush is both with resistive film contact, and also, with bus contact, the output voltage on brush is drawn by bus.
The synthetic membrane potentiometer of straight-line displacement, because of advantages such as resolving power is high, impulse stroke scope is large, technique simple, reliable operations, makes it be widely used in fields such as space flight, aviation and engineering machinery.But because its actuating medium is generally air, and interface do not possess sealing, actual product can environment for use more single, restrict the application of feedback potentiometer.
Existing working environment requires feedback potentiometer need to meet the environmental baseline that actuating medium is 10# aircraft fluid, and oil liquid pressure is up to 35MPa.For the feedback potentiometer technology of high-voltage oil liquid working environment, also there is no in this respect at present breakthrough both at home and abroad.
Utility model content
The purpose of this utility model be to provide a kind of can be in high-voltage oil liquid environment the wet type straight-line displacement feedback potentiometer of reliably working.
The technical solution that realizes the utility model object is:
A kind of wet type straight-line displacement feedback potentiometer, comprises housing, brush carrier parts, resistance component, base member and wire, wherein, resistance component one end is through housing and brush carrier parts, the other end stretches into base member, brush carrier parts comprise referring to brush more and hold brush, brush carrier parts are fixedly connected with housing by holding brush, refer to that brush is fixedly in one's hands and brushes more, and contact with bus with the resistive film of resistance component respectively, base member comprises pedestal and binding post, binding post is arranged on the inside of pedestal, and hermetically sealed, stretch out pedestal at pedestal near the lead-in wire terminal of brush carrier parts, resistance component is drawn wire near one end of base member, through binding post, and draw at the leading-out terminal of base member, the leading-out terminal of base member is hermetically sealed.
The utility model compared with prior art, its remarkable advantage:
The base member that the utility model adopts pedestal and binding post to coordinate, straight-line displacement feedback potentiometer of the present utility model can be worked in wet environment, sealing, good insulating, creatively realized the reliable use of feedback potentiometer in the harsh and unforgiving environments of high-voltage oil liquid.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model wet type straight-line displacement feedback potentiometer.
Fig. 2 is the structural representation of the utility model wet type straight-line displacement feedback potentiometer resistance component.
Fig. 3 is the structural representation of the utility model wet type straight-line displacement feedback potentiometer base member.
Embodiment
In conjunction with Fig. 1 and Fig. 3:
A kind of wet type straight-line displacement of the utility model feedback potentiometer, comprises housing 1, brush carrier parts 2, resistance component 3, base member 4 and wire 5, wherein, resistance component 3 one end are through housing 1 and brush carrier parts 2, the other end stretches into base member 4, brush carrier parts 2 comprise referring to brush more and hold brush, brush carrier parts 2 are fixedly connected with housing 1 by holding brush, refer to that brush is fixedly in one's hands and brushes more, and contact with bus 8 with the resistive film 7 of resistance component 3 respectively, base member 4 comprises pedestal 10 and binding post 11, binding post 11 is arranged on the inside of pedestal 10, and hermetically sealed, stretch out pedestal 10 at pedestal 10 near the lead-in wire terminal of brush carrier parts 2, resistance component 3 is drawn wire 5 near one end of base member 4, through binding post 11, and draw at the leading-out terminal of base member 4, the leading-out terminal of base member is hermetically sealed.
Between binding post 11 and seat 10, encapsulate by glass sintering.
The leading-out terminal of base member 4 is hermetically sealed by O-ring seal.
As shown in Figure 2:
Resistance component 3 adopts conventional structure, is formed in parallel back-to-back by two plates, and on matrix 6, bus 8 is installed in parallel in resistive film 7 sides, and both are spaced-apart.Resistive element mid point is earth point, and the contact at two ends connects respectively the positive and negative electrode of power supply.The brush of finger more than two is arranged on brush carrier and forms brush carrier parts 2, and brush carrier parts 2 are connected with housing 1, is driven brush is slided on resistive element by piston rod, and the potential difference (PD) between brush and intermediate contact has reflected the displacement of piston apart from meta.Brush both contacted with resistive film 7, also contacted with bus 8, and the output voltage on brush is just drawn by bus 8.Obtain the output voltage linear with brush shift, the wire 5 of potentiometer is drawn by base member 4.
In order to there is good sealing and insulativity in high-voltage oil liquid, wet type feedback potentiometer adopts base member 4 to draw wire 5, as shown in Figure 3: the excircle dimension of base member 4 matches with piston rod cavity O-ring seal installation dimension, between pedestal 10 and binding post 11, take the special sealing-in mode of glass sintering, its resistance to pressure, good airproof performance, and reliability is high, meet the use needs in high-voltage oil liquid.
Claims (3)
1. a wet type straight-line displacement feedback potentiometer, is characterized in that: comprise housing (1), brush carrier parts (2), resistance component (3), base member (4) and wire (5), wherein, resistance component (3) one end is through housing (1) and brush carrier parts (2), the other end stretches into base member (4), brush carrier parts (2) comprise referring to brush more and hold brush, brush carrier parts (2) are fixedly connected with housing (1) by holding brush, refer to that brush is fixedly in one's hands and brushes more, and contact with bus (8) with the resistive film (7) of resistance component (3) respectively, base member (4) comprises pedestal (10) and binding post (11), binding post (11) is arranged on the inside of pedestal (10), and hermetically sealed, stretch out pedestal (10) at pedestal (10) near the lead-in wire terminal of brush carrier parts (2), resistance component (3) is drawn wire near one end of base member (4), through binding post (11), and draw at the leading-out terminal of base member (4), the leading-out terminal of base member is hermetically sealed.
2. a kind of wet type straight-line displacement feedback potentiometer according to claim 1, is characterized in that: between described binding post (11) and seat (10), encapsulate by glass sintering.
3. a kind of wet type straight-line displacement feedback potentiometer according to claim 1, is characterized in that: the leading-out terminal of described base member (4) is hermetically sealed by O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828287.8U CN203642865U (en) | 2013-12-13 | 2013-12-13 | Wet linear displacement feedback potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828287.8U CN203642865U (en) | 2013-12-13 | 2013-12-13 | Wet linear displacement feedback potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642865U true CN203642865U (en) | 2014-06-11 |
Family
ID=50874101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320828287.8U Expired - Lifetime CN203642865U (en) | 2013-12-13 | 2013-12-13 | Wet linear displacement feedback potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203642865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629027A (en) * | 2014-10-31 | 2016-06-01 | 北京精密机电控制设备研究所 | High-reliability high-wear-resistance conductive plastic potentiometer |
| CN108127561A (en) * | 2017-12-19 | 2018-06-08 | 苏州锃道研磨技术有限公司 | It is a kind of to power off the retainable absolute position measure and control device of data and its investigating method |
-
2013
- 2013-12-13 CN CN201320828287.8U patent/CN203642865U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105629027A (en) * | 2014-10-31 | 2016-06-01 | 北京精密机电控制设备研究所 | High-reliability high-wear-resistance conductive plastic potentiometer |
| CN108127561A (en) * | 2017-12-19 | 2018-06-08 | 苏州锃道研磨技术有限公司 | It is a kind of to power off the retainable absolute position measure and control device of data and its investigating method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203642865U (en) | Wet linear displacement feedback potentiometer | |
| CN204390820U (en) | Series gap metal oxide arrester on transmission line of alternation current | |
| CN201252047Y (en) | Movable end connecting structure for sealed high-pressure vacuum breaker | |
| CN206505836U (en) | A kind of aluminium electrolutic capacitor of resistance to vibration shape the with a tight waist | |
| CN206291847U (en) | A kind of microminiature angular displacement sensor | |
| CN203101578U (en) | Electrode for voltage withstanding test of hot-line work tool | |
| CN202481386U (en) | Simple plastic bag sealing device | |
| CN203519194U (en) | Air compressor-used explosion-proof temperature sensor | |
| CN203516755U (en) | Electronic type electric accurate small-size single-seated adjusting valve | |
| CN203310455U (en) | Sensor of gas mass flow controller | |
| CN203950280U (en) | The active pointer with capacitance induction system | |
| CN103592050B (en) | A kind of integrated temperature sensor used for air compressor | |
| CN203308452U (en) | Pulser pressure compensating device | |
| CN204141073U (en) | A kind of submerged pump cable sealing structure | |
| CN205194468U (en) | Take totally -enclosed transformer of bellytank | |
| CN203274780U (en) | Housing of sensor | |
| CN203548404U (en) | Hydraulic oil cylinder | |
| CN202712009U (en) | Explosion-proof button | |
| CN202420364U (en) | Stroke detecting device used in high pressure environment | |
| CN203180144U (en) | Oil and vapor-resistant media high pressure-resistant underwater connector | |
| CN204464669U (en) | A kind of filtering inserting needle electric connector | |
| CN203434307U (en) | Motor releaser thread device | |
| CN203300383U (en) | Breathing tube internally-arranged metal expander | |
| CN103575419A (en) | Anti-explosion temperature sensor for air compressor | |
| CN203670986U (en) | Kettle bottom valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |