CN105629027A - High-reliability high-wear-resistance conductive plastic potentiometer - Google Patents
High-reliability high-wear-resistance conductive plastic potentiometer Download PDFInfo
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- CN105629027A CN105629027A CN201410601780.5A CN201410601780A CN105629027A CN 105629027 A CN105629027 A CN 105629027A CN 201410601780 A CN201410601780 A CN 201410601780A CN 105629027 A CN105629027 A CN 105629027A
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- conductive plastic
- resistor assembly
- plastic potentiometer
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- assembly
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Abstract
The invention belongs to the technical field of an electromechanical servo mechanism, and specifically relates to a high-reliability high-wear-resistance conductive plastic potentiometer. According to the technical scheme adopted by the invention, the high-reliability high-wear-resistance conductive plastic potentiometer is disposed in a servo actuator and comprises a right resistor assembly, a left resistor assembly and an electric brush assembly; and the right resistor assembly is installed on the right side of the internal of a housing of the servo actuator, the left resistor assembly is installed on the left side of the internal of the housing of the servo actuator, and the electric brush assembly is installed on a leading screw in the servo actuator between the right resistor assembly and the left resistor assembly. The conductive plastic potentiometer has the advantage of high temperature resistance that short-time high temperature of the conductive plastic potentiometer can reach 200 DEG C. The conductive plastic potentiometer has the advantage of wear resistance that high-quality organic matters are taken as a mother body and a suitable conductive particle filling material, a series of physical and chemical treatments are performed on conductive particles, defects of the poor rheological property and the poor reinforcement property are overcome, and then wear-resistant, firm and reinforcing objects are achieved. And different resistivities are achieved through control of the concentration of the conductive particles of the conductive plastic potentiometer.
Description
Technical field
The invention belongs to electromechanical coupling system technical field, be specifically related to a kind of highly reliable high abrasion conductive plastic potentiometer.
Background technology
Rocket adopts the omnidistance offline mode becoming rail in endoatmosphere high-speed maneuver, and one-level powered phase adopts jet vane to control; Two grades of powered phases adopt flexible joint nozzle to control pitching and yaw direction, realize rolling control by airvane; Maneuvering flight section adopts airvane to control. In view of features such as electromechanical servo system working service performance are good, the lead time is short, technology stability is good, general requirement servosystem all adopts electromechanical servo system scheme.
Important component part as electromechanical servo, potentiometer is used for measuring servo actuator displacement of the lines and participating in feedback, high-wear-resistance long-service-life conductive plastic potentiometer research project proposes research to adapt to the supporting needs of servo control mechanism, due to potentiometric pick-up simple in construction, in displacement measurement and feedback, obtain comparatively general application. But owing to its principle is contact, determine service life limited.
The current potential in the past used is in respect of synthesis membrane type and conductive plastics two kinds, and wherein synthesis membrane type potentiometer uses the technology sixties, and the life-span does not grow (being generally 200,000 times), temperature resistant grade not high (being up to 150 DEG C). Along with launch mission requires more and more higher, synthesis transmembrane potential meter technology can not meet high reliability product needed very well, and mission requirements must carry out new technique and reliability consideration, carries out the update of product. Recent years, conductive plastic potentiometer arriving in each Project R&D was widely applied, but due to its resistive film inherent shortcoming of conductive plastics Middle Eocene meter, cause that its resistive element in use (about 50,000 times) there will be megohmite insulant and precipitates out, the phenomenon that potentiometer brush contact resistance increases, thus causing that kick occurs in servo mechanism test, affect servo control mechanism interpretation.
Therefore a kind of highly reliable, high abrasion, long-life conductive plastics Middle Eocene meter need to be developed to adapt to growing development demand.
Summary of the invention
The technical problem to be solved is, not enough for prior art, it is provided that a kind of highly reliable, high abrasion, long-life potentiometer.
The technical solution adopted in the present invention is:
A kind of highly reliable high abrasion conductive plastic potentiometer, it is located at inside servo actuator, including right resistor assembly, left resistor assembly and a brush assembly of electric, right resistor assembly is arranged on the right side of servo actuator enclosure interior, left resistor assembly is arranged on the left of servo actuator enclosure interior, and brush assembly of electric is positioned on the leading screw within the servo actuator between right resistor assembly and left resistor assembly.
Described right resistor assembly includes skeleton, bus and resistive film, and wherein bus is parallel with resistive film is printed on skeleton.
The described resistor assembly that does includes skeleton, bus and resistive film, and bus is parallel with resistive film to be printed on skeleton.
Brush assembly of electric includes brush and brush carrier, and brush is installed on brush carrier.
Framework material is YB20 polyimide laminate.
Resistive film adopts high temperature to be printed on skeleton matrix, and resistive film formula is:
Colloidal graphite powder F-1 content:(volume ratio) (reference value), all the other are SP14 phenolic resin solution.
SP14 phenol resin solution: SP14 phenolic resin: mixed solvent=1:1 (weight ratio).
The material of brush carrier is soluble polyimide laminated plastic YS20, and brush is welded by palladium iridium alloy silk and conductive spring leaf.
The invention has the beneficial effects as follows:
1. high temperature resistant: conductive plastic potentiometer short time high temperature can reach 200 DEG C, 150 DEG C of hot environments can normal operation, temperature drift is less than 50mV;
2. more resistant to mill: select high-quality Organic substance as parent and suitable conductive particulate filler, and conducting particles is carried out a series of physical chemistry process, overcome rheological characteristic and reinforcing poor defect, reach that wear-resisting, matter is hard and reinforcement purpose, realize different resistivity by controlling the concentration of its conducting particles simultaneously;
3. with matrix cementability is good, shrinkage factor is little, resistance body resistance stable;
4. hardness is high, contact resistance is little: after the resistive film after improvement is combined with YB-20 matrix material, Wear Resistance is higher. In brush motor process the abrasion of face is little, potentiometer contact resistance is obviously reduced compared with conventional conductive plastic potentiometer.
Accompanying drawing explanation
Fig. 1 is a kind of highly reliable high abrasion conductive plastic potentiometer structural representation;
Fig. 2 is a kind of highly reliable high abrasion conductive plastic potentiometer schematic diagram;
Fig. 3 is left and right resistor assembly schematic diagram;
Fig. 4 is brush assembly of electric schematic diagram
In figure: 1. right resistor assembly, 2. left resistor assembly, 3. brush handle assembly, 4. skeleton, 5. bus, 6. resistive element, 7. brush carrier, 8. brush.
Detailed description of the invention
Below in conjunction with drawings and Examples, one provided by the invention is introduced:
. a kind of highly reliable high abrasion conductive plastic potentiometer, it is located at inside servo actuator, including right resistor assembly 1, left resistor assembly 2 and a brush assembly of electric 3, right resistor assembly 1 is arranged on the right side of servo actuator enclosure interior, left resistor assembly 2 is arranged on the left of servo actuator enclosure interior, and brush assembly of electric 3 is positioned on the leading screw within servo actuator between right resistor assembly 1 and left resistor assembly 2.
Described right resistor assembly 1 includes skeleton 4, bus 5 and resistive film 6, and wherein bus 5 is parallel with resistive film 6 is printed on skeleton 4.
The described resistor assembly 2 that does includes skeleton 4, bus 5 and resistive film 6, and bus 5 is parallel with resistive film 6 to be printed on skeleton 4.
Brush assembly of electric 3 includes brush 8 and brush carrier 7, and brush 8 is installed on brush carrier 7.
Skeleton 4 material is YB20 polyimide laminate.
Resistive film adopts high temperature to be printed on skeleton matrix, and resistive film formula is:
Colloidal graphite powder F-1 content:Volume ratio reference value, all the other are SP14 phenolic resin solution.
SP14 phenol resin solution: SP14 phenolic resin: mixed solvent=1:1 weight ratio.
The material of brush carrier 7 is soluble polyimide laminated plastic YS20, and brush 8 is welded by palladium iridium alloy silk and conductive spring leaf.
In the present invention, after resistive film is combined with YB-20 matrix material, Wear Resistance is higher, and service life is up to 300,000 times, and contact resistance is stable; Temperature resistant grade is higher, up to more than 200 DEG C. The conductive plastic resistance resistance body series of series can be formed, cost of goods manufactured can suitably reduce, but can improve production qualification rate, it is possible to substitutes the synthesis transmembrane potential meter formula sensor being presently using completely, the reliability making model servo control mechanism is greatly improved, and brings considerable economic and social benefit.
Claims (7)
1. a highly reliable high abrasion conductive plastic potentiometer, it is located at inside servo actuator, it is characterized in that: include right resistor assembly (1), left resistor assembly (2) and a brush assembly of electric (3), right resistor assembly (1) is arranged on the right side of servo actuator enclosure interior, left resistor assembly (2) is arranged on the left of servo actuator enclosure interior, and brush assembly of electric (3) is positioned on the leading screw within servo actuator between right resistor assembly (1) and left resistor assembly (2).
2. the highly reliable high abrasion conductive plastic potentiometer of one according to claim 1, it is characterized in that: described right resistor assembly (1) includes skeleton (4), bus (5) and resistive film (6), wherein bus (5) is parallel with resistive film (6) is printed on skeleton (4).
3. the highly reliable high abrasion conductive plastic potentiometer of one according to claim 1, it is characterized in that: described in do resistor assembly (2) and include skeleton (4), bus (5) and resistive film (6), bus (5) is parallel with resistive film (6) to be printed on skeleton (4).
4. the highly reliable high abrasion conductive plastic potentiometer of one according to claim 1, it is characterized in that: brush assembly of electric (3) includes brush (8) and brush carrier (7), and brush (8) is installed on brush carrier (7).
5. the highly reliable high abrasion conductive plastic potentiometer of one according to Claims 2 or 3, it is characterised in that: skeleton (4) material is YB20 polyimide laminate.
6. the highly reliable high abrasion conductive plastic potentiometer of one according to Claims 2 or 3, it is characterised in that: resistive film adopts high temperature to be printed on skeleton matrix, and resistive film formula is:
Colloidal graphite powder F-1 content:(volume ratio) (reference value), all the other are SP14 phenolic resin solution.
SP14 phenol resin solution: SP14 phenolic resin: mixed solvent=1:1 (weight ratio).
7. the highly reliable high abrasion conductive plastic potentiometer of one according to claim 4, it is characterized in that: the material of brush carrier (7) is soluble polyimide laminated plastic YS20, and brush (8) is welded by palladium iridium alloy silk and conductive spring leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601780.5A CN105629027A (en) | 2014-10-31 | 2014-10-31 | High-reliability high-wear-resistance conductive plastic potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410601780.5A CN105629027A (en) | 2014-10-31 | 2014-10-31 | High-reliability high-wear-resistance conductive plastic potentiometer |
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| CN105629027A true CN105629027A (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410601780.5A Pending CN105629027A (en) | 2014-10-31 | 2014-10-31 | High-reliability high-wear-resistance conductive plastic potentiometer |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105454A (en) * | 1984-07-18 | 1987-01-28 | 美国电材料公司 | Composites with low ohmic value |
| CN101053045A (en) * | 2004-09-07 | 2007-10-10 | 株式会社村田制作所 | Paste, resistor paste, methods for producing those, and variable resistor |
| EP2074637A1 (en) * | 2006-10-12 | 2009-07-01 | Abb Research Ltd. | Layered electrically conductive structure and potentiometer comprising such a structure |
| CN202905355U (en) * | 2012-10-26 | 2013-04-24 | 陕西宏星电器有限责任公司 | Coaxial duplex straight-sliding type potentiometer |
| CN103090785A (en) * | 2011-10-28 | 2013-05-08 | 北京精密机电控制设备研究所 | Integrated triple redundancy angle displacement measurement device |
| CN103794317A (en) * | 2012-10-26 | 2014-05-14 | 陕西宏星电器有限责任公司 | Coaxial duplex straight-sliding type potentiometer |
| CN103794318A (en) * | 2012-10-26 | 2014-05-14 | 陕西宏星电器有限责任公司 | Linear displacement potentiometer |
| CN103840601A (en) * | 2014-03-06 | 2014-06-04 | 北京精密机电控制设备研究所 | Electric-mechanical actuator |
| CN203642865U (en) * | 2013-12-13 | 2014-06-11 | 南京晨光集团有限责任公司 | Wet linear displacement feedback potentiometer |
-
2014
- 2014-10-31 CN CN201410601780.5A patent/CN105629027A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105454A (en) * | 1984-07-18 | 1987-01-28 | 美国电材料公司 | Composites with low ohmic value |
| CN101053045A (en) * | 2004-09-07 | 2007-10-10 | 株式会社村田制作所 | Paste, resistor paste, methods for producing those, and variable resistor |
| EP2074637A1 (en) * | 2006-10-12 | 2009-07-01 | Abb Research Ltd. | Layered electrically conductive structure and potentiometer comprising such a structure |
| CN103090785A (en) * | 2011-10-28 | 2013-05-08 | 北京精密机电控制设备研究所 | Integrated triple redundancy angle displacement measurement device |
| CN202905355U (en) * | 2012-10-26 | 2013-04-24 | 陕西宏星电器有限责任公司 | Coaxial duplex straight-sliding type potentiometer |
| CN103794317A (en) * | 2012-10-26 | 2014-05-14 | 陕西宏星电器有限责任公司 | Coaxial duplex straight-sliding type potentiometer |
| CN103794318A (en) * | 2012-10-26 | 2014-05-14 | 陕西宏星电器有限责任公司 | Linear displacement potentiometer |
| CN203642865U (en) * | 2013-12-13 | 2014-06-11 | 南京晨光集团有限责任公司 | Wet linear displacement feedback potentiometer |
| CN103840601A (en) * | 2014-03-06 | 2014-06-04 | 北京精密机电控制设备研究所 | Electric-mechanical actuator |
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