CN105890515A - Gear transmission type multi-ring non-contact digital potentiometer - Google Patents
Gear transmission type multi-ring non-contact digital potentiometer Download PDFInfo
- Publication number
- CN105890515A CN105890515A CN201610488250.3A CN201610488250A CN105890515A CN 105890515 A CN105890515 A CN 105890515A CN 201610488250 A CN201610488250 A CN 201610488250A CN 105890515 A CN105890515 A CN 105890515A
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- Prior art keywords
- gear
- magnetic steel
- driving gear
- housing
- order
- 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.)
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- 230000005540 biological transmission Effects 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 230000009467 reduction Effects 0.000 claims abstract description 25
- 238000000638 solvent extraction Methods 0.000 abstract 3
- 238000005259 measurement Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007087 memory ability Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/24—Adjustable resistors the contact moving along turns of a helical resistive element, or vica versa
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a gear transmission type multi-ring non-contact digital potentiometer which comprises a main shaft 1, a shell 11, a rear cover 7, a circuit board 9, a magnetic steel sleeve 5, magnetic steel 6, a partitioning plate 10, a first-stage driving gear 13 and a speed reduction gear group, wherein the magnetic steel sleeve 5, the magnetic steel 6, the partitioning plate 10, the first-stage driving gear 13 and the speed reduction gear group are arranged inside the shell 11; the first-stage driving gear 13 is arranged at one end of the main shaft 1, and is connected with the speed reduction gear group; the speed reduction gear group is connected with the magnetic steel sleeve 5 and is connected with the partitioning plate 10 in a rotatable and clamping manner; the magnetic steel 6 is fixed on the magnetic steel sleeve; the circuit board 9 is arranged inside the rear cover 7, is over against the magnetic steel 6 and does not contact the magnetic steel 6. According to the gear transmission type multi-ring non-contact digital potentiometer disclosed by the invention, the multi-ring corner of the main shaft is directly converted into a single-ring corner of the magnetic steel by using the speed reduction gear group, and thus a function of multi-ring angle measurement of the non-contact digital potentiometer is achieved.
Description
Technical field
The present invention relates to field of electronic devices, be specifically related to a kind of gear drive type multi-turn noncontact numeral
Potentiometer.
Background technology
Traditional potentiometer uses brush contact working method, and structure is by wire-wound resistor body, slip electricity
Brush, rotating shaft, shell etc. form.Supply voltage is carried in resistive element two ends, and brush slides above
Detection the voltage of output brush position, carry out detection angles information with this.If resistive element is done
Becoming multi-circle spiral flow shape, potentiometer can be achieved with the angle measuring function of multi-turn.This mode directly contacted
Due between brush and resistive element with the presence of sliding friction, cause its limited lifetime, simultaneously because
Abrasion, accuracy of detection also can decrease.
In recent years, non-contact type digital regulation resistance is greatly developed, and its principle is potentiometer master
One block of magnet steel is installed on axle, comprises the circuit of Hall element in just location arrangements one piece to magnet steel
Plate, this sensor is among the magnetic field that magnet steel produces, and when potentiometer main shaft rotates, sensor leads to
Cross detection X, Y both direction magnetic field intensity to calculate corresponding corner, and by corner information to use
Analog quantity or digital quantity needed for person export.Non-contact type digital regulation resistance can be in a lot of occasions
Substitute traditional potentiometer, owing to departing from CONTACT WITH FRICTION formula structure, its working life obtains significantly
Improve.But, this non-contact type potentiometer limits due to the function of its sensor, maximum detection model
Enclose only 360 degree, so the requirement that multi-turn is measured cannot directly be met.
In order to realize the purpose that multi-turn angle is measured by non-contact type potentiometer, also some potentiometer
Product producer employs some special methods, including: add in common non-contact type potentiometer
The number of turns remembered by dress enumerator, and the angle number of turns remembered and Hall element recorded is combined, passes through
Export the signal needed for user after calculating again, realize multi-turn with this and measure, such non-contact type electricity
It is exactly once device powers down that position device exists maximum defect, and the lap signal measuring gained also can be lost.
Another kind of method is to install a gear at the main shaft of common non-contact type potentiometer additional to slow down
Mechanism, is converted into reduction gearing individual pen (360 degree by this mechanism by the multi-turn angle of main shaft upper magnetic steel
Within) angle, second sensor measure the angle that this reduction gearing turns over, by calculate
The corner of reduction gearing is converted into the number of turns that main shaft turns over, and the main shaft recorded with first sensor
Angle combines, and exports the signal needed for user after again calculating.Use the noncontact of this design
Type potentiometer is owing to have employed mechanical reduction gear to carry out number of turns detection, and the most there is not power-off will
The shortcoming losing lap signal, but detect angle of eccentricity and reduction gearing corner due to needs simultaneously,
And it being combined calculating, its frame for movement and circuit part are the most more complicated, occupy space very big, very
Difficulty realizes miniaturization and carrys out the traditional multiturn potentiometer of replacement for small.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, it is provided that a kind of gear drive type multi-turn
Noncontact digital regulation resistance, it has longer service life relative to traditional potentiometer, simultaneously can also
Enough realizations are for the multi-turn angular surveying of digital regulation resistance, and reliability is high, volume is little, range of application
Extensively.
A kind of technical scheme realizing above-mentioned purpose is: a kind of gear drive type multi-turn noncontact numeral electricity
Position device, including main shaft 1, housing 11, bonnet 7, wiring board 9, and it is internal to be arranged on housing 11
Magnetic steel sleeve 5, magnet steel 6, dividing plate 10, first order driving gear 13 and train of reduction gears.
Described housing 11 is provided with a shell neck；Main shaft 1 is plugged in described shell neck.
Stretching into of described main shaft 1 arranges described first order driving gear 13 on the one end within housing 11.
Described first order driving gear 13 and train of reduction gears connect.
It is internal that dividing plate 10 is fixed on housing 11；Described train of reduction gears and described magnetic steel sleeve 5 connect,
And rotatable and dividing plate 10 clamping；Described magnet steel 6 is fixed on described magnetic steel sleeve.
Described bonnet 7 is connected with described housing 11；Described wiring board 9 is arranged in described bonnet 7,
Face described magnet steel 6, and have no to contact with described magnet steel 6.
Further, described train of reduction gears includes first order driven gear 2, second level driving gear
3, rotary gear shaft 4 and second level driven gear 12；Described first order driven gear 2 is with described first
Level driving gear 13 engagement connects；Described first order driven gear 2 and described second level driving gear 3
Riveting；Described rotary gear shaft 4 is through described first order driven gear 2 and described second level driving gear
3, it is fixed in described housing 11；Described second level driven gear 12 and described second level driving tooth
Wheel 3 engagement connects；The end face of described second level driven gear 12 is connected with described magnetic steel sleeve 5, and two
Person and the described rotating clamping of dividing plate 10.
Further, described wiring board 9 is by high impedance Hall element, sensing circuit, conversion electricity
Road and input and output pin are constituted.
Further, described bonnet 7 offering a wire through-hole, a wire 8 is by leading
Line three-way hole welds with described wiring board 9.
A kind of gear drive type multi-turn noncontact digital regulation resistance of the present invention, by potentiometer main shaft and magnetic
Steel separates, and is turned by the individual pen that the multi-turn corner of main shaft is converted into magnet steel part by train of reduction gears
Angle, realizes non-contact type digital regulation resistance with this and carries out the function of multi-turn angular surveying.Due to machinery machine
The holding capacity of structure, it is not necessary to outside continued power, potentiometer also can keep the memory energy to lap signal
Power, has the strongest reliability；Meanwhile, this design directly obtains the lap signal of magnet steel by circuit board,
Calculate without measuring the corner row again of reduction gearing, eliminate unnecessary component, therefore make number
The volume of word potentiometer reduces, and alternative traditional potentiometer has wider array of range.
Accompanying drawing explanation
Fig. 1 is the structural perspective of a kind of gear drive type multi-turn noncontact digital regulation resistance of the present invention
(shell partly cuts open)；
Fig. 2 is the inner section of a kind of gear drive type multi-turn noncontact digital regulation resistance of the present invention
Figure；
Fig. 3 is the electrical principle of a kind of gear drive type multi-turn noncontact digital regulation resistance of the present invention
Figure.
Detailed description of the invention
In order to enable preferably technical scheme to be understood, below by specifically embodiment
And combine accompanying drawing and be described in detail:
Refer to Fig. 1 and Fig. 2, a kind of gear drive type multi-turn noncontact digital regulation resistance of the present invention,
Including main shaft 1, housing 11, bonnet 7, wiring board 9, and it is arranged on the magnet steel within housing 11
Set 5, magnet steel 6, dividing plate 10, first order driving gear 13 and train of reduction gears.
Bonnet 7 and housing 11 are aluminum hardware, and the two part constitutes numeral of the present invention
The shell of potentiometer.
Housing 11 is provided with a shell neck；Main shaft 1 is rustless steel axial workpiece, is plugged in shell neck.
First order driving gear 13 is copper gear part, is arranged on stretching within housing 11 of main shaft 1
On one end, and 360 degree of rotations can be done around the axle center of housing 11.
Train of reduction gears includes first order driven gear 2, second level driving gear 3, rotary gear shaft 4
With second level driven gear 12.Wherein, first order driven gear 2, second level driving gear 3 and
Two grades of driven gears 12 are copper gear part, and rotary gear shaft 4 is rustless steel axial workpiece.First
Level driven gear 2 engages with first order driving gear 13.First order driven gear 2 and second level master
Moving gear 3 rivets；Rotary gear shaft 4 passes first order driven gear 2 and second level driving gear 3,
It is fixed in housing 11；First order driven gear 2 and second level driving gear 3 can be around rotary gear shafts 4
Axle center do 360 degree of rotations.Second level driven gear 12 engages with second level driving gear 3.
Dividing plate 10 is copper plate part, and it is internal that dividing plate 10 is fixed on housing 11.Magnetic steel sleeve 5 is
Rustless steel axial workpiece, the end face of second level driven gear 12 is connected with magnetic steel sleeve 5, the two with every
Plate 10 clamping, and 360 degree of rotations can be done around the axle center of dividing plate 10.Magnet steel 6 is that a neodymium iron boron is circular
Magnet steel, is fixed on magnetic steel sleeve 5 and can rotate with magnetic steel sleeve 5.
Bonnet 7 is connected with housing 11.Wiring board 9 is arranged in bonnet 7, faces magnet steel 6, and
Have no to contact with magnet steel 6.Wiring board 9 is by high impedance Hall element, sensing circuit, change-over circuit
And input and output pin is constituted.Offering a wire through-hole on bonnet 7, a wire 8 is by leading
Line three-way hole welds with wiring board 9, and connects with associated external equipment, as storage device, signal are included
Equipment etc..
Refer to Fig. 3, high impedance Hall (magnetosensitive) sensing during potentiometer work, on wiring board 9
Device (the U1 part in Fig. 3) is placed in the magnetic field space that magnet steel 6 produces, and detects X, Y two
Magnetic field intensity on direction, along with magnetic steel sleeve 5 drives magnet steel 6 to carry out 360 degree of rotations, high impedance is suddenly
You detect that the magnetic field intensity in both direction changes the most therewith by (magnetosensitive) sensor, this change
Magnetic field intensity is converted into required voltage current signal by change-over circuit (the U2 part in Fig. 3) and enters
Row output, standard signal is 0-5V/0-10V/4-20mA, it is also possible to directly with digital output, defeated
Going out form and include the data patterns such as PWM, SPI, SSI, external equipment is by gathering these output signals
Reach the purpose of angle detection.
First order driven gear 2, second level driving gear 3, second level driven gear 12 and the first order
Driving gear 13 constitutes the gear reduction of two-stage, and the rotating speed of main shaft 1 is reduced to about 1/10
Being delivered to magnetic steel sleeve 5, when magnetic steel sleeve 5 rotates 1 circle, main shaft 1 needs to rotate about 10 circles, quite
High impedance Hall (magnetosensitive) sensor on wiring board 9 have detected the angle of main shaft 1 about 10 circle
Change, achieves the function of multi-turn angular surveying with this.
The invention has the beneficial effects as follows: compared to traditional potentiometer, noncontact digital regulation resistance has resistance to
The advantages such as vibration, noise little, output signal diversified high life, and the gear drive type of the present invention is many
Circle noncontact digital regulation resistance, achieves noncontact digital regulation resistance by reduction gear mechanism
Multi-turnization is measured so that noncontact multi-turn digital regulation resistance can substitute the potentiometer of tradition multi-turn.With
Time, the gear drive type multi-turn noncontact digital regulation resistance of the present invention is without outside continued power, current potential
Device also can keep the memory ability to lap signal, has the strongest reliability；The present invention passes through circuit board
Directly obtain the lap signal of magnet steel, it is not necessary to the corner row again measuring reduction gearing calculates, and eliminates not
Necessary component, therefore makes the volume of digital regulation resistance reduce, has wider array of range.
Those of ordinary skill in the art is it should be appreciated that above embodiment is intended merely to
The bright present invention, and it is not used as limitation of the invention, as long as at the spirit of the present invention
In, change, the modification of embodiment described above all will be fallen in the range of claims of the present invention.
Claims (4)
1. a gear drive type multi-turn noncontact digital regulation resistance, including main shaft 1, housing 11, bonnet 7, line
Road plate 9, and it is arranged on the magnetic steel sleeve 5 within housing 11, magnet steel 6, dividing plate 10, first order driving gear
13 and train of reduction gears；It is characterized in that:
Described housing 11 is provided with a shell neck；Main shaft 1 is plugged in described shell neck；
Stretching into of described main shaft 1 arranges described first order driving gear 13 on the one end within housing 11；
Described first order driving gear 13 and train of reduction gears connect；
It is internal that dividing plate 10 is fixed on housing 11；Described train of reduction gears and described magnetic steel sleeve 5 connect, and rotatable
With dividing plate 10 clamping；Described magnet steel 6 is fixed on described magnetic steel sleeve；
Described bonnet 7 is connected with described housing 11；Described wiring board 9 is arranged in described bonnet 7, faces
Described magnet steel 6, and have no to contact with described magnet steel 6.
A kind of gear drive type multi-turn noncontact digital regulation resistance the most according to claim 1, its feature exists
In, described train of reduction gears includes first order driven gear 2, second level driving gear 3, rotary gear shaft 4 and
Two grades of driven gears 12；
Described first order driven gear 2 engages with described first order driving gear 13；Described first order driven gear
2 and described second level driving gear 3 rivet；Described rotary gear shaft 4 is through described first order driven gear 2 and institute
State second level driving gear 3, be fixed in described housing 11；
Described second level driven gear 12 engages with described second level driving gear 3；Described second level driven gear
The end face of 12 is connected with described magnetic steel sleeve 5, the two and the described rotating clamping of dividing plate 10.
A kind of gear drive type multi-turn noncontact digital regulation resistance the most according to claim 1 and 2, it is special
Levying and be, described wiring board 9 is by high impedance Hall element, sensing circuit, change-over circuit and input and output pin
Constitute.
A kind of gear drive type multi-turn noncontact digital regulation resistance the most according to claim 1 and 2, it is special
Levying and be, described bonnet 7 offers a wire through-hole, a wire 8 is by wire through-hole and described circuit
Plate 9 welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488250.3A CN105890515A (en) | 2016-06-29 | 2016-06-29 | Gear transmission type multi-ring non-contact digital potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610488250.3A CN105890515A (en) | 2016-06-29 | 2016-06-29 | Gear transmission type multi-ring non-contact digital potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105890515A true CN105890515A (en) | 2016-08-24 |
Family
ID=56719254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610488250.3A Pending CN105890515A (en) | 2016-06-29 | 2016-06-29 | Gear transmission type multi-ring non-contact digital potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105890515A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044252A (en) * | 2019-04-02 | 2019-07-23 | 武汉理岩控制技术有限公司 | A kind of measuring device and measuring method for detection axis rotational angle |
| CN111998767A (en) * | 2020-09-01 | 2020-11-27 | 枣阳市米朗科技有限公司 | Waterproof type magnetic resistance type multi-ring angular displacement sensor |
| CN114459339A (en) * | 2022-03-25 | 2022-05-10 | 天津思耐德精密机械有限公司 | Electrically-driven three-stage planetary reduction driver angle detection device |
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|---|---|---|---|---|
| CN2828754Y (en) * | 2005-10-26 | 2006-10-18 | 弘威科技股份有限公司 | Non-contact angle sensor for automobile and motorcycle |
| US20060267725A1 (en) * | 2005-05-25 | 2006-11-30 | Ge Medical Systems Global Technology Company, Llc | Potentiometer |
| CN101400972A (en) * | 2006-03-14 | 2009-04-01 | Skf公司 | Device for detecting angular position, electric motor, steering column, and reduction gear |
| CN201251427Y (en) * | 2008-08-29 | 2009-06-03 | 南京龙泰航空电子科技有限公司 | Ultra-micro servo machine |
| CN201273819Y (en) * | 2008-08-07 | 2009-07-15 | 深圳万讯自控股份有限公司 | Hall potentiometer used for execution mechanism |
| CN202630898U (en) * | 2012-05-22 | 2012-12-26 | 曾焕城 | Multi-circle angle measuring device |
| JP2013142603A (en) * | 2012-01-11 | 2013-07-22 | Sakae Tsushin Kogyo Kk | Contactless potentiometer |
| CN204007495U (en) * | 2014-06-12 | 2014-12-10 | 山东科技大学 | A kind of draw wire displacement sensor |
| CN204424024U (en) * | 2015-03-06 | 2015-06-24 | 上海思博机械电气有限公司 | A kind of plastic casing noncontact potentiometer |
| CN205825896U (en) * | 2016-06-29 | 2016-12-21 | 上海思博机械电气有限公司 | A kind of gear drive type multi-turn noncontact digital regulation resistance |
-
2016
- 2016-06-29 CN CN201610488250.3A patent/CN105890515A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060267725A1 (en) * | 2005-05-25 | 2006-11-30 | Ge Medical Systems Global Technology Company, Llc | Potentiometer |
| CN2828754Y (en) * | 2005-10-26 | 2006-10-18 | 弘威科技股份有限公司 | Non-contact angle sensor for automobile and motorcycle |
| CN101400972A (en) * | 2006-03-14 | 2009-04-01 | Skf公司 | Device for detecting angular position, electric motor, steering column, and reduction gear |
| CN201273819Y (en) * | 2008-08-07 | 2009-07-15 | 深圳万讯自控股份有限公司 | Hall potentiometer used for execution mechanism |
| CN201251427Y (en) * | 2008-08-29 | 2009-06-03 | 南京龙泰航空电子科技有限公司 | Ultra-micro servo machine |
| JP2013142603A (en) * | 2012-01-11 | 2013-07-22 | Sakae Tsushin Kogyo Kk | Contactless potentiometer |
| CN202630898U (en) * | 2012-05-22 | 2012-12-26 | 曾焕城 | Multi-circle angle measuring device |
| CN204007495U (en) * | 2014-06-12 | 2014-12-10 | 山东科技大学 | A kind of draw wire displacement sensor |
| CN204424024U (en) * | 2015-03-06 | 2015-06-24 | 上海思博机械电气有限公司 | A kind of plastic casing noncontact potentiometer |
| CN205825896U (en) * | 2016-06-29 | 2016-12-21 | 上海思博机械电气有限公司 | A kind of gear drive type multi-turn noncontact digital regulation resistance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044252A (en) * | 2019-04-02 | 2019-07-23 | 武汉理岩控制技术有限公司 | A kind of measuring device and measuring method for detection axis rotational angle |
| CN111998767A (en) * | 2020-09-01 | 2020-11-27 | 枣阳市米朗科技有限公司 | Waterproof type magnetic resistance type multi-ring angular displacement sensor |
| CN114459339A (en) * | 2022-03-25 | 2022-05-10 | 天津思耐德精密机械有限公司 | Electrically-driven three-stage planetary reduction driver angle detection device |
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Application publication date: 20160824 |
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