CN103794318A - Linear displacement potentiometer - Google Patents
Linear displacement potentiometer Download PDFInfo
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- CN103794318A CN103794318A CN201210419282.XA CN201210419282A CN103794318A CN 103794318 A CN103794318 A CN 103794318A CN 201210419282 A CN201210419282 A CN 201210419282A CN 103794318 A CN103794318 A CN 103794318A
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Abstract
The invention discloses a linear displacement potentiometer which comprises a shell and a conductive substrate, wherein one end of the shell is provided with a front cover, the other end of the shell is provided with a rear cover, the inner wall of one side of the shell is provided with a boss 1, the inner wall of the other side of the shell is provided with a boss 2, a slide block which can slide along the boss 1 and the boss 2 is arranged in the shell, the upper part of the shell is provided with a sliding chute, the slide block is vertically provided with an adjusting shaft, the top surface of the conductive substrate is provided with a resistor body, one end of the resistor body is provided with an electrode 1, the other end of the resistor body is provided with an electrode 3, the top surface of the conductive substrate is provided with an electrode 2, the lower end of the slide block is provided with a spring leaf, the spring leaf is provided with a multi-fingered brush 1 and a multi-fingered brush 2, the rear cover is provided with a through hole, a heat shrinkable tube is arranged in the through hole, and a lead 1, a lead 2 and a lead 3 are arranged in the heat shrinkable tube, wherein the lead 1 is connected with the electrode 1, the lead 2 is connected with the electrode 2, and the lead 3 is connected with the electrode 3. The linear displacement potentiometer is simple in structure, large in resistance value adjusting range, and high in linear precision.
Description
Technical field
The present invention relates to a kind of displacement transducer, particularly relate to a kind of straight-line displacement potentiometer.
Background technology
Straight-line displacement potentiometer is the high-accuracy potentiometer of the accurate electronics of a kind of suitable needs, mechanical output performance servo applications.Its output is linear with the linear position of regulating shaft, the conversion from mechanical movement (rectilinear motion) to electronic signal can be realized, the military complete machines such as Aeronautics and Astronautics and precision instrumentation, vehicle position sensor can be met to high accuracy, high-performance, high life, highly reliable requirement.Existing straight-line displacement potentiometer is all to complete by the axial push-and-pull to regulating shaft mostly.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of straight-line displacement potentiometer is provided.The adjustable range simple in structure, resistance of this straight-line displacement potentiometer is large, linear precision is high, rotational life is long, flatness is good, definition is excellent, moving noise is little, reliability is high, is convenient to promote the use of.
For achieving the above object, the technical solution used in the present invention is: a kind of straight-line displacement potentiometer, it is characterized in that: comprise shell and conducting base is in the enclosure set, one end of described shell is provided with protecgulum, the other end of described shell is provided with bonnet, on one side inwall of described shell, be provided with the boss one extending along outer cover length direction, on the opposite side inwall of described shell, be provided with the boss two extending along outer cover length direction, in described shell, be provided with the slide block that can slide along boss one and boss two, the top of described shell offers the chute extending along outer cover length direction, on described slide block, be vertically provided with regulating shaft, chute is stretched out in the upper end of described regulating shaft, the end face of described conducting base is provided with the resistive element extending along conducting base length direction, one end of described resistive element is provided with electrode one, the other end of described resistive element is provided with electrode three, on described conducting base end face and be positioned at resistive element one side and be provided with the electrode two that is strip, the lower end of described slide block is provided with reed, on described reed, be provided with the many finger brushes one that connect with resistive element and the many finger brushes two that connect with electrode two, on described bonnet, offer through hole, in described through hole, be provided with heat-shrink tube, in described heat-shrink tube, be provided with the lead-in wire one joining with electrode one, the lead-in wire two joining with electrode two and the lead-in wire three joining with electrode three.
Above-mentioned a kind of straight-line displacement potentiometer, it is characterized in that: in described heat-shrink tube, be provided with flexible pipe, described lead-in wire one, lead-in wire two and lead-in wire three are all arranged in flexible pipe, the outer end of heat-shrink tube is stretched out in one end of described flexible pipe, and the other end of described flexible pipe stretches out the inner of heat-shrink tube and is connected on conducting base by rivet.
Above-mentioned a kind of straight-line displacement potentiometer, is characterized in that: described reed is fixedly mounted on slide block by screw.
Above-mentioned a kind of straight-line displacement potentiometer, is characterized in that: the cross section of described slide block is " work " font.
Above-mentioned a kind of straight-line displacement potentiometer, is characterized in that: described resistive element adopts DAP resin to make.
Above-mentioned a kind of straight-line displacement potentiometer, is characterized in that: described conducting base adopts DAP plastics to make.
Above-mentioned a kind of straight-line displacement potentiometer, is characterized in that: described slide block adopts polytetrafluoroethylene to make.
The present invention compared with prior art has the following advantages:
1, of the present invention simple in structure, rationally novel in design, be easy to install.
2, the present invention moves in chute by regulating shaft, thereby band movable slider slides on boss one and boss two, and then obtain variable voltage or resistance output by lead-in wire one, lead-in wire two and lead-in wire three, described regulating shaft, along moving with its axial perpendicular direction, has improved the adjustable range of this potentiometer resistance resistance.
3, linear precision of the present invention is high, rotational life is long, flatness is good, definition is excellent, moving noise is little, reliability is high.
4, of the present invention to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, the present invention is simple in structure, and novel in design rationally functional reliability is high, and the adjustable range of resistance is large, linear precision is high, rotational life is long, flatness is good, definition is excellent, moving noise is little, result of use is good, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the annexation schematic diagram of slide block of the present invention and boss one and boss two.
Fig. 3 is the position relationship schematic diagram of resistive element of the present invention, electrode one, electrode two and electrode three.
Description of reference numerals:
1-shell; 1-1-chute; 1-2-boss one;
1-3-boss two; 2-regulating shaft; 3-slide block;
4-bonnet; 5-lead-in wire one; 6-lead-in wire two;
7-lead-in wire three; 8-flexible pipe; 9-heat-shrink tube;
10-rivet; 11-screw; 12-reed;
13-refer to brush one more; 14-conducting base; 14-1-resistive element;
14-2-electrode one; 14-3-electrode three; 14-4-electrode two;
15-protecgulum.
Embodiment
As Fig. 1, a kind of straight-line displacement potentiometer shown in Fig. 2 and Fig. 3, comprise shell 1 and be arranged on the conducting base 14 in shell 1, one end of described shell 1 is provided with protecgulum 15, the other end of described shell 1 is provided with bonnet 4, on one side inwall of described shell 1, be provided with boss one 1-2 extending along shell 1 length direction, on the opposite side inwall of described shell 1, be provided with boss two 1-3 that extend along shell 1 length direction, in described shell 1, being provided with can be along the slide block 3 of boss one 1-2 and boss two 1-3 slips, the top of described shell 1 offers the chute 1-1 extending along shell 1 length direction, on described slide block 3, be vertically provided with regulating shaft 2, chute 1-1 is stretched out in the upper end of described regulating shaft 2, the end face of described conducting base 14 is provided with the resistive element 14-1 extending along conducting base 14 length directions, one end of described resistive element 14-1 is provided with electrode one 14-2, the other end of described resistive element 14-1 is provided with electrode three 14-3, on described conducting base 14 end faces and be positioned at resistive element 14-1 mono-side and be provided with electrode two 14-4 that are strip, the lower end of described slide block 3 is provided with reed 12, on described reed 12, be provided with the many finger brushes 1 that connect with resistive element 14-1 and the many finger brushes two that connect with electrode two 14-4, on described bonnet 4, offer through hole, in described through hole, be provided with heat-shrink tube 9, in described heat-shrink tube 9, be provided with the lead-in wire 1 joining with electrode one 14-2, the lead-in wire 26 joining with electrode two 14-4 and the lead-in wire 37 joining with electrode three 14-3.
When use, move in chute 1-1 by regulating shaft 2, thereby band movable slider 3 slides on boss one 1-2 and boss two 1-3, it is described that how finger brush 1 connects with resistive element 14-1, it is described that how finger brush two connects with electrode two 14-4, along with the movement of slide block 3, thereby obtain variable voltage or resistance output by lead-in wire 1, lead-in wire 26 and lead-in wire 37.In the present invention, described regulating shaft 2, along moving with its axial perpendicular direction, has improved the adjustable range of this potentiometer resistance resistance.
As shown in Figure 1, in described heat-shrink tube 9, be provided with flexible pipe 8, described lead-in wire 1, lead-in wire 26 and lead-in wire 37 are all arranged in flexible pipe 8, and the outer end of heat-shrink tube 9 is stretched out in one end of described flexible pipe 8, and the other end of described flexible pipe 8 stretches out the inner of heat-shrink tube 9 and is connected on conducting base 14 by rivet 10.Described reed 12 is fixedly mounted on slide block 3 by screw 11.
As shown in Figure 2, the cross section of described slide block 3 is " work " font.
In the present embodiment, described resistive element 14-1 adopts DAP resin to make, DAP resin (diallyl phthalate) is a kind of resin of high-temp resisting high-humidity resisting, when its polymerization, be cross-linked into netted three-dimensional-structure, become insoluble not molten polymer, under the rigor condition such as hot and humid, do not produce free analyte, stable performance.Due to polymer film densification, surface smoothness is high.The resistive element mechanical endurance excellence made from this material, rotational life (or sliding the life-span) can reach ten million time, has guaranteed friction durability and the reliability of product.Described conducting base 14 adopts DAP plastics to make, DAP plastics electric breakdown strength is high, insulation property are good, performance at aspects such as electrical characteristic, dimensional stability, thermal endurance, moisture-proof, resistance to ag(e)ing and chemical stabilities (chemical resistance) is very excellent, also there is good mildew-resistant and anti-salt fog performance simultaneously, select DAP resin as conducting base, guaranteed the stability of product.Described shell 1, protecgulum 15 and bonnet 4 all adopt aluminium alloy to make.Described aluminium alloy is the aluminium alloy that aircraft industry is used and the trade mark is LY12, and it has higher mechanical strength and good high-temperature mechanical property, and oxalic acid anodization makes surface passivation, can salt spray resistance, mould proof.Described slide block 3 adopts polytetrafluoroethylene to make.Polytetrafluoroethylene not only has remarkable heat-resisting, cold resistance, the more important thing is that its greasy property is good, has very low dynamic and static coefficient of friction, can be low to moderate 0.07 to the coefficient of friction of metal, is conducive to slide on boss one 1-2 and boss two 1-3.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation of above embodiment being done according to the technology of the present invention essence, all still belongs in the protection range of technical solution of the present invention.
Claims (7)
1. a straight-line displacement potentiometer, it is characterized in that: comprise shell (1) and be arranged on the conducting base (14) in shell (1), one end of described shell (1) is provided with protecgulum (15), the other end of described shell (1) is provided with bonnet (4), on one side inwall of described shell (1), be provided with the boss one (1-2) extending along shell (1) length direction, on the opposite side inwall of described shell (1), be provided with the boss two (1-3) extending along shell (1) length direction, in described shell (1), being provided with can be along the slide block (3) of boss one (1-2) and boss two (1-3) slip, the top of described shell (1) offers the chute (1-1) extending along shell (1) length direction, on described slide block (3), be vertically provided with regulating shaft (2), chute (1-1) is stretched out in the upper end of described regulating shaft (2), the end face of described conducting base (14) is provided with the resistive element (14-1) extending along conducting base (14) length direction, one end of described resistive element (14-1) is provided with electrode one (14-2), the other end of described resistive element (14-1) is provided with electrode three (14-3), on described conducting base (14) end face and be positioned at resistive element (14-1) side and be provided with the electrode two (14-4) that is strip, the lower end of described slide block (3) is provided with reed (12), on described reed (12), be provided with the many finger brushes one (13) that connect with resistive element (14-1) and the many finger brushes two that connect with electrode two (14-4), described bonnet offers through hole on (4), in described through hole, be provided with heat-shrink tube (9), in described heat-shrink tube (9), be provided with the lead-in wire one (5) joining with electrode one (14-2), the lead-in wire two (6) joining with electrode two (14-4) and the lead-in wire three (7) joining with electrode three (14-3).
2. a kind of straight-line displacement potentiometer according to claim 1, it is characterized in that: in described heat-shrink tube (9), be provided with flexible pipe (8), described lead-in wire one (5), lead-in wire two (6) and lead-in wire three (7) are all arranged in flexible pipe (8), the outer end of heat-shrink tube (9) is stretched out in one end of described flexible pipe (8), and the other end of described flexible pipe (8) stretches out the inner of heat-shrink tube (9) and is connected on conducting base (14) by rivet (10).
3. a kind of straight-line displacement potentiometer according to claim 1, is characterized in that: described reed (12) is fixedly mounted on slide block (3) by screw (11).
4. a kind of straight-line displacement potentiometer according to claim 1, is characterized in that: the cross section of described slide block (3) is " work " font.
5. a kind of straight-line displacement potentiometer according to claim 1, is characterized in that: described resistive element (14-1) adopts DAP resin to make.
6. a kind of straight-line displacement potentiometer according to claim 1, is characterized in that: described conducting base (14) adopts DAP plastics to make.
7. a kind of straight-line displacement potentiometer according to claim 1, is characterized in that: described slide block (3) adopts polytetrafluoroethylene to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210419282.XA CN103794318A (en) | 2012-10-26 | 2012-10-26 | Linear displacement potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210419282.XA CN103794318A (en) | 2012-10-26 | 2012-10-26 | Linear displacement potentiometer |
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| Publication Number | Publication Date |
|---|---|
| CN103794318A true CN103794318A (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210419282.XA Pending CN103794318A (en) | 2012-10-26 | 2012-10-26 | Linear displacement potentiometer |
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| Country | Link |
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| CN (1) | CN103794318A (en) |
Cited By (4)
| 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 |
| CN106441063A (en) * | 2016-10-21 | 2017-02-22 | 惠州市铂蓝德科技有限公司 | Displacement sensor and pressure cooker thereof |
| CN109110573A (en) * | 2018-09-06 | 2019-01-01 | 深圳市安泽智能工程有限公司 | Fiber tension regulating device |
| CN110500941A (en) * | 2019-08-27 | 2019-11-26 | 成都宏明电子股份有限公司 | A kind of straight-line displacement magneto-dependent sensor of RS485 linear convergent rate |
-
2012
- 2012-10-26 CN CN201210419282.XA patent/CN103794318A/en active Pending
Cited By (5)
| 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 |
| CN106441063A (en) * | 2016-10-21 | 2017-02-22 | 惠州市铂蓝德科技有限公司 | Displacement sensor and pressure cooker thereof |
| CN109110573A (en) * | 2018-09-06 | 2019-01-01 | 深圳市安泽智能工程有限公司 | Fiber tension regulating device |
| CN110500941A (en) * | 2019-08-27 | 2019-11-26 | 成都宏明电子股份有限公司 | A kind of straight-line displacement magneto-dependent sensor of RS485 linear convergent rate |
| CN110500941B (en) * | 2019-08-27 | 2024-05-14 | 成都宏明电子股份有限公司 | Linear displacement magneto-dependent sensor with RS485 linear output |
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Application publication date: 20140514 |