CN103337321A - Fine-tuned precision potentiometer based on gear transmission - Google Patents
Fine-tuned precision potentiometer based on gear transmission Download PDFInfo
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- CN103337321A CN103337321A CN2013102075385A CN201310207538A CN103337321A CN 103337321 A CN103337321 A CN 103337321A CN 2013102075385 A CN2013102075385 A CN 2013102075385A CN 201310207538 A CN201310207538 A CN 201310207538A CN 103337321 A CN103337321 A CN 103337321A
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Abstract
The invention discloses a fine-tuned precision potentiometer based on gear transmission. The fine-tuned precision potentiometer comprises a multi-turn potentiometer, a coupling, a decelerator, a graduated disc, an instrument panel, a driving wheel, a driven wheel, a spindle and a rotary knob. The fine-tuned precision potentiometer is characterized in that the decelerator and the multi-turn potentiometer are arranged on the same shaft through the coupling, and after being decelerated according to the given transmission ratio, the multi-turn potentiometer is transferred into a single-turn potentiometer. The graduated disc is arranged on the output shaft of the decelerator, and the number is read through an observation window of the instrument panel. The driving wheel is arranged at the lower end of the spindle, the driven wheel is arranged on the coupling, the rotary knob is arranged on the upper end of the spindle. The rotary knob is adjusted, the dynamic force is transmitted to the multi-turn potentiometer through the gear, the adjust fineness of the multi-turn potentiometer is transmitted to the rotary knob, therefore fine adjust effect is achieved. The fine-tuned precision potentiometer based on gear transmission realizes application of a multi-turn potentiometer in a precision measuring instrument with a graduated disc, improves the measuring precision of the precision instrument, and increases the application fields of multi-turn potentiometer.
Description
Technical field
The present invention relates to a kind ofly belong to the electronic devices and components class based on gear-driven fine-tuning precision potentiometer, be specially adapted to fields such as instrument, instrument, power supply and fine measuring instrument.
Background technology
Precision potentiometer is widely used in electronic instrument, instrument and the fine measuring instrument equipment, is a kind of electronic devices and components commonly used in electric power, the electronic leaning laboratory fine measuring instrument.Precision potentiometer is a kind of of variable resistance, normally is made up of resistive element and rotation axis.Resistive element has two stiff ends, by the manual adjustments rotating shaft, changes the position of moving contact on resistive element, has then changed the resistance between moving contact and any stiff end, thereby changes the size of voltage and current.Advantages such as precision potentiometer has high accuracy, good stability, temperature coefficient is little, contact is reliable.
Potentiometer mainly is divided into individual pen and multi-turn, and generally between 1%～3%, the precision of multiturn potentiometer can accomplish 0.1%～0.3% to the precision of single-turn potentiometer, so adopt multiturn potentiometer (for example: 5 circles, 10 circles etc.) in a lot of high-acruracy survey fields more.Be the rotating shaft rotation multi-turn of multiturn potentiometer, could have transferred whole resistance values, reach the effect of fine setting.And on some has the fine measuring instrument of dial (for example: mutual-inductor tester), be subjected to the influence of precision, must adopt multiturn potentiometer, but the reading of dial one circle is corresponding with potentiometer integral capacitor value.If dial is directly installed in the rotating shaft of multiturn potentiometer, adjust multi-turn continuously after, reading can't be corresponding with actual value on the dial.Therefore in order to solve an above-mentioned difficult problem, design a kind of can being used in multiturn potentiometer on the fine measuring instrument, it is very necessary to pacify the fine-tuning precision potentiometer of accurate reading with dial again.
Summary of the invention
The objective of the invention is: at the existing limitation of multiturn potentiometer on range of application, provide a kind of based on gear-driven fine-tuning precision potentiometer, (for example: mutual-inductor tester) be specially adapted to have the fine measuring instrument of dial.This precision potentiometer adopts two groups of gear transmission structures, and first group of gear drive makes multi-turn become individual pen by given transmission ratios (for example: 5:1,10:1 etc.), thus the convenient dial of installing, the accuracy of assurance reading; Second group of gear is installed in shaft coupling and the rotating shaft finely tunes.
The technical solution adopted in the present invention is: a kind of based on gear-driven fine-tuning precision potentiometer, comprise multiturn potentiometer, shaft coupling, decelerator, dial, instrument panel, driving wheel, driven pulley, rotating shaft and knob, it is characterized in that: decelerator passes through the coaxial installation of shaft coupling with multiturn potentiometer, by after the given transmission ratios reduction of speed, make multiturn potentiometer become single-turn potentiometer by decelerator; Dial is installed on the output shaft of decelerator, by the observation window reading on the instrument panel; Driving wheel is installed in the lower end of rotating shaft, and driven pulley is installed on the shaft coupling, and knob is installed in the rotating shaft upper end, and adjusting knob drives multiturn potentiometer by gear transmission power, and the adjusting fineness of multiturn potentiometer is passed to knob, reaches the effect of fine setting.
Aforesaidly it is characterized in that based on gear-driven fine-tuning precision potentiometer further comprise potentiometer fixture, decelerator fixed head, multiturn potentiometer is fixed by the potentiometer fixture, decelerator is installed on the decelerator fixed head.
Aforesaidly it is characterized in that based on gear-driven fine-tuning precision potentiometer further comprise bearing pedestal, rotating shaft is fixed on the decelerator fixed head by bearing pedestal, and bearing is installed in the bearing pedestal.
Aforesaidly it is characterized in that based on gear-driven fine-tuning precision potentiometer that multiturn potentiometer is 5 circles or 10 circle potentiometers.
Aforesaidly it is characterized in that based on gear-driven fine-tuning precision potentiometer transmission ratios is 5:1 or 10:1.
The invention has the beneficial effects as follows: 1, adopt the gear reduction unit principle, make multiturn potentiometer (for example: 5 circles, 10 circles etc.) change individual pen into, make things convenient for the installation of dial and the accuracy of assurance reading, thereby realized multiturn potentiometer (for example: mutual-inductor tester), improved the certainty of measurement of precision instrument and the application of multiturn potentiometer is applied to have on the fine measuring instrument of dial.2, adopt parallel axes column gear transmission principle, the adjusting fineness of multiturn potentiometer is passed to knob, by adjusting knob, reach the effect of fine setting.
Description of drawings
Fig. 1 is overall structure profile of the present invention.
Fig. 2 is gear reduction unit of the present invention and parallel axes column gear transmission part sectioned view.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.Those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally within the listed claims limited range of the application.
Description of symbols among the figure: 1-multiturn potentiometer, 2-shaft coupling, 3-driven pulley, 4-decelerator, 5-dial, the 6-instrument panel, 7-potentiometer fixture, 8-driving wheel, 9-bearing pedestal, 10-rotating shaft, 11-decelerator fixed head, 12-knob, a few font fixtures of 13-, 14-bearing.
Fig. 1 is overall structure profile of the present invention, and the present invention is a kind of based on gear-driven fine-tuning precision potentiometer.This precision potentiometer mainly is made up of multiturn potentiometer 1, shaft coupling 2, decelerator 4, dial 5, driving wheel 8, driven pulley 3, rotating shaft 10 and knob 12.Multiturn potentiometer 1 is fixing by potentiometer fixture 7, uses shaft coupling 2 decelerator 4 and multiturn potentiometer 1 coaxial installation.Decelerator 4 is installed on the decelerator fixed head 11,, dial 5 is installed on the output shaft of decelerator 4, by the observation window reading on the instrument panel 6 by after given transmission ratios (for example: 5:1, the 10:1 etc.) reduction of speed by decelerator 4.Adopt other pair of parallel axial cylindrical gear drive principle, driving wheel 8 is installed in the lower end of rotating shaft 10, driven pulley 3 is installed on the shaft coupling 2.Rotating shaft 10 upper ends are equipped with knob 12, and adjusting knob 12 drives multiturn potentiometer 1 by gear transmission power, and the adjusting fineness of multiturn potentiometer 1 is passed to knob 12, reaches the effect of fine setting.
Fig. 2 is gear reduction unit of the present invention and parallel axes column gear transmission part sectioned view.Decelerator 4 is formed a cover transmission component with pair of parallel axial cylindrical gear, is installed on the instrument panel 6 by a few font fixtures 13.Driven pulley 3 is installed on the shaft coupling 2, and driving wheel 8 is installed in the lower end of rotating shaft 10.Rotating shaft 10 is fixed on the decelerator fixed head 11 by bearing pedestal 9, and bearing pedestal is equipped with bearing 14 for 9 li.Dial 5 is fixed on the output shaft of decelerator 4, and adjusting knob adopts the principle of gear transmission power to drive multiturn potentiometer 1 and dial 5, thereby realizes and can finely tune again by accurate reading.
Since gear drive have stable drive, gearratio accurately, compact conformation, reliable operation, efficient advantages of higher.Adopt the principle of gear drive reduction of speed, assurance decelerator 4 makes multiturn potentiometer (for example: 5 circles, 10 circles etc.) change individual pen into accurately by given transmission ratios (for example: 5:1,10:1 etc.) reduction of speed, makes things convenient for installation and the energy accurate reading of dial.By another group parallel axes column gear transmission, the adjusting fineness of multiturn potentiometer is passed to knob, realize fine setting, improve certainty of measurement.
The present invention adopts two groups of gear drives.One group is back gear.Its input is installed in by shaft coupling 2 in the rotating shaft of multiturn potentiometer 1, and is corresponding to the potentiometer number of turns given transmission ratios (for example: 5:1,10:1 etc.), make multiturn potentiometer 1 rotate multi-turn after, output shaft rotates 1 circle just.Dial 5 is installed on the output shaft of gear transmission structure, and reading can be corresponding with the potentiometer overall resistance, adopts the rotating shaft of other one group of gear rotation electrokinetic potential device, and the gearratio of this gear train can be adjusted according to demand.Like this, when manually reconciling potentiometer, can finely tune resistance value, dial reading is corresponding with resistance value simultaneously, makes reading more accurate.Thereby obtained a kind of precision potentiometer that can finely tune and can accurate reading.
The content that is not described in detail in this specification belongs to this area professional and technical personnel's known prior art.
Claims (5)
1. one kind based on gear-driven fine-tuning precision potentiometer, comprise multiturn potentiometer (1), shaft coupling (2), decelerator (4), dial (5), instrument panel (6), driving wheel (8), driven pulley (3), rotating shaft (10) and knob (12), it is characterized in that: decelerator (4) passes through the coaxial installation of shaft coupling (2) with multiturn potentiometer (1), by after the given transmission ratios reduction of speed, make multiturn potentiometer (1) become single-turn potentiometer by decelerator (4); Dial (5) is installed on the output shaft of decelerator (4), by the observation window reading on the instrument panel (6); Driving wheel (8) is installed in the lower end of rotating shaft (10), driven pulley (3) is installed on the shaft coupling (2), knob (12) is installed in rotating shaft (10) upper end, adjusting knob (12), drive multiturn potentiometer (1) by gear transmission power, the adjusting fineness of multiturn potentiometer (1) is passed to knob (12), reach the effect of fine setting.
2. according to claim 1 based on gear-driven fine-tuning precision potentiometer, it is characterized in that, further comprise potentiometer fixture (7), decelerator fixed head (11), multiturn potentiometer (1) is fixing by potentiometer fixture (7), and decelerator (4) is installed on the decelerator fixed head (11).
3. according to claim 2 based on gear-driven fine-tuning precision potentiometer, it is characterized in that, further comprise bearing pedestal (9), rotating shaft (10) is fixed on the decelerator fixed head (11) by bearing pedestal (9), and bearing pedestal (9) lining is equipped with bearing (14).
4. according to claim 1ly it is characterized in that based on gear-driven fine-tuning precision potentiometer that multiturn potentiometer (1) is 5 circles or 10 circle potentiometers.
5. according to claim 4ly it is characterized in that based on gear-driven fine-tuning precision potentiometer transmission ratios is 5:1 or 10:1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310207538.5A CN103337321B (en) | 2013-05-30 | 2013-05-30 | A kind of based on gear-driven fine-tuning precision potentiometer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310207538.5A CN103337321B (en) | 2013-05-30 | 2013-05-30 | A kind of based on gear-driven fine-tuning precision potentiometer |
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| CN103337321A true CN103337321A (en) | 2013-10-02 |
| CN103337321B CN103337321B (en) | 2015-11-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974897A (en) * | 2019-04-02 | 2019-07-05 | 上海外高桥造船有限公司 | A kind of PT100 temperature alarming tester |
| CN111916267A (en) * | 2020-08-11 | 2020-11-10 | 惠凯 | Multistage carry type high-precision adjustable low-resistance resistor |
| CN113257504A (en) * | 2021-04-23 | 2021-08-13 | 东莞福哥电子有限公司 | Rocker potentiometer with high-precision adjustment function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921068A (en) * | 1974-06-10 | 1975-11-18 | Veeder Industries Inc | Indicating potentiometer |
| JPH0927407A (en) * | 1995-07-13 | 1997-01-28 | Tokai Rika Co Ltd | Load control device |
| CN202612479U (en) * | 2012-06-12 | 2012-12-19 | 海顿直线电机(常州)有限公司 | Novel connecting device of potentiometer |
| CN203366884U (en) * | 2013-05-30 | 2013-12-25 | 国家电网公司 | Gear-driven-based micro-adjustable precision potentiometer |
-
2013
- 2013-05-30 CN CN201310207538.5A patent/CN103337321B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921068A (en) * | 1974-06-10 | 1975-11-18 | Veeder Industries Inc | Indicating potentiometer |
| JPH0927407A (en) * | 1995-07-13 | 1997-01-28 | Tokai Rika Co Ltd | Load control device |
| CN202612479U (en) * | 2012-06-12 | 2012-12-19 | 海顿直线电机(常州)有限公司 | Novel connecting device of potentiometer |
| CN203366884U (en) * | 2013-05-30 | 2013-12-25 | 国家电网公司 | Gear-driven-based micro-adjustable precision potentiometer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974897A (en) * | 2019-04-02 | 2019-07-05 | 上海外高桥造船有限公司 | A kind of PT100 temperature alarming tester |
| CN111916267A (en) * | 2020-08-11 | 2020-11-10 | 惠凯 | Multistage carry type high-precision adjustable low-resistance resistor |
| CN113257504A (en) * | 2021-04-23 | 2021-08-13 | 东莞福哥电子有限公司 | Rocker potentiometer with high-precision adjustment function |
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| Publication number | Publication date |
|---|---|
| CN103337321B (en) | 2015-11-18 |
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Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE STATE GRID Effective date: 20150702 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20150702 |
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Effective date of registration: 20150702 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: China Electric Power Research Institute Applicant after: State Grid Chongqing Electric Power Company Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Applicant before: China Electric Power Research Institute |
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Address after: 100192 No. 86 West Chang'an Avenue, Beijing, Xicheng District Co-patentee after: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Co-patentee after: STATE GRID CHONGQING ELECTRIC POWER Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: China Electric Power Research Institute Patentee before: State Grid Corporation of China Co-patentee before: STATE GRID CHONGQING ELECTRIC POWER Co. |
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