CN201251427Y - Ultra-micro servo machine - Google Patents
Ultra-micro servo machine Download PDFInfo
- Publication number
- CN201251427Y CN201251427Y CNU2008201848268U CN200820184826U CN201251427Y CN 201251427 Y CN201251427 Y CN 201251427Y CN U2008201848268 U CNU2008201848268 U CN U2008201848268U CN 200820184826 U CN200820184826 U CN 200820184826U CN 201251427 Y CN201251427 Y CN 201251427Y
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- Prior art keywords
- duplex
- gear
- reduction gearing
- level
- potentiometer
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Abstract
The utility model discloses an ultra-micro servo machine which comprises an upper cover (10), a middle cover (20), a lower cover (30), a circuit board (304), a motor (301) and a potentiometer (302); the circuit board (304) is arranged in the lower cover (30) and is electrically connected with the motor (301) and the potentiometer (302); the output shaft end of the motor (301) penetrating the middle cover (20) is provided with a motor gear (101); the utility model is characterized in that a space surrounded by the upper cover (10) and the middle cover (20) is provided with a reduction gear unit (1); the first grade duplicate reduction gear (102) of the reduction gear unit (1) is engaged with the motor gear (101); the tail grade duplicate output gear (106) of the reduction gear unit (1) is arranged on the upper end of a potentiometer drive shaft (303); the small gear of the duplicate output gear (106) extends out of the upper cover (10); the lower end of the potentiometer drive shaft (303) penetrates the middle cover (20) and then is inserted into the potentiometer (302). The utility model has the advantages of small size, light weight, small noise, high precision, and reliable working.
Description
Technical field
The utility model relates to a kind of small-sized servo, especially a kind of compact conformation that grows up from the model plane field, the sensitive small-sized servo of rotation, specifically a kind of ultramicro minitype servo.
Background technology
As everyone knows, servo is a kind of driver of position servo.It receives certain control signal, and the accurate control of output displacement angle is applicable to that those need angle then, the control system that direction constantly changes and can keep.Servo appears at the model airplane field the earliest as the control assembly of direction of motion.Servo is the servomotor that is used for controlling rudder face.Servo is orientable motor in essence, when receiving a position command, will move and be positioned this assigned address.
Afterwards, along with the continuous development of science and technology, servo application more and more widely.Servo not only applies in the aviation and navigation model, and has obtained perfect application in industrial automation, promptly everyly needs the operability action time can consider to use servo to realize function.
Because servo is the combination of motor and speed reducer structure and control gear, the control accuracy that therefore existing servo exists is poor, and volume is bigger, and weight is big, can not adapt to the needs of miniaturization and lightness.
Summary of the invention
The purpose of this utility model is, Heavy Weight big at existing servo volume, can not adapt to the problem of miniaturization needs, designs a kind of weight and can be controlled in the following ultramicro minitype servo of 2.5 grams.
The technical solution of the utility model is:
A kind of ultramicro minitype servo, comprise loam cake 10, middle cover 20, lower cover 30, circuit board 304, motor 301 and potentiometer 302, loam cake 10 is provided with plastic column with lower cover 30 face relative with middle cover, middle cover 20 is provided with mounting hole, loam cake 10, middle cover 20 is pegged graft with the lower cover three and is linked to each other, circuit board 304 is installed in the lower cover 30 and with motor 301 and potentiometer 302 and is electrically connected, motor 301 and potentiometer 302 are installed on the bottom surface of middle cover 20 and are arranged in middle cover 20 and space that lower cover 30 surrounds, on the output axle head that passes middle cover 20 of motor 301 motor gear 101 is installed, it is characterized in that the one-level duplex reduction gearing 102 that train of reduction gears 1 train of reduction gears 1 is installed is meshed with motor gear 101 in the space that loam cake 10 and middle cover 20 are surrounded, the not level duplex output gear 106 of train of reduction gears 1 is installed on the upper end of potentiometer driving shaft 303, the pinion wheel of duplex output gear 106 and potentiometer driving shaft 303 are fixedly linked and stretch out loam cake 10, and the lower end of potentiometer driving shaft 303 is passed middle cover 20 backs and inserted in the potentiometer 302.
Described train of reduction gears 1 is by one-level duplex reduction gearing 102, secondary duplex reduction gearing 103, three grades of duplex reduction gearing 105, level Four duplex reduction gearing 104 and duplex output gear 106 are formed, the one-level duplex subtracts whole gear 102 and is sleeved on the one-level gear shaft 107, secondary duplex reduction gearing 103 and level Four duplex reduction gearing 104 spacer sleeves are contained on the secondary gear axle 108, three grades of duplex reduction gearing 105 are sleeved on the potentiometer driving shaft 303 and are positioned at the bottom of duplex output gear 106, one-level gear shaft 107 and secondary gear axle 108 are fixed between loam cake 10 and the middle cover 20, gear wheel in the one-level duplex reduction gearing 102 is meshed with motor gear 101, pinion wheel in the one-level duplex reduction gearing 102 is meshed with gear wheel in the secondary duplex reduction gearing 103, pinion wheel in the secondary duplex reduction gearing 103 is meshed with gear wheel in three grades of duplex reduction gearing 105, pinion wheel in three grades of duplex reduction gearing 105 is meshed with the gear wheel in the level Four duplex reduction gearing 104, pinion wheel in the level Four duplex reduction gearing 104 is meshed with gear wheel in the duplex output gear 106, and the pinion wheel in the duplex output gear 106 links to each other with potentiometer driving shaft 303 as the output of whole train of reduction gears 1.
The beneficial effects of the utility model:
The utlity model has simple in structure, in light weight, because housing (upper, middle and lower lid) adopts the transparent ABS material injection mo(u)lding, gear adopts the POM gear, servomotor adopts hollow coreless motor, therefore complete machine weight can be controlled in about 2.5 grams, has enlarged its range of application greatly, for model plane and Industry Control provide a kind of in light weight, Industry Control product that volume is little.
Gear reduction of the present utility model is reasonable in design, and reduction of speed is than big, and noiselessness is controlled rotational angle accurately and reliably by potentiometer.
Description of drawings
Fig. 1 is a three-dimensional decomposition texture synoptic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1.
A kind of ultramicro minitype servo, comprise loam cake 10, middle cover 20, lower cover 30, circuit board 304 (can adopt in the existing textbook similarly circuit to be realized, it mainly acts on is to receive control signal, simultaneously the variation of potentiometer resistance is converted to the rotational angle of potentiometer rotating shaft, and send control signal corresponding) to servomotor, (model can be: PT-6 Spain potentiometer) for motor 301 and potentiometer 302, loam cake 10 and lower cover 30 and middle cover 20 relative faces are provided with plastic column 2,3, middle cover 20 is provided with mounting hole, loam cake 10, middle cover 20 and lower cover 30 threes pass through plastic column 2 each other, 3 peg graft with the mounting hole wringing fit links to each other, circuit board 304 is installed in the lower cover 30 and with motor 301 and potentiometer 302 and is electrically connected, motor 301 and potentiometer 302 are installed on the bottom surface of middle cover 20 and are arranged in middle cover 20 and space that lower cover 30 surrounds, on the output axle head that passes middle cover 20 of motor 301 motor gear 101 is installed, the one-level duplex reduction gearing 102 that train of reduction gears 1 train of reduction gears 1 is installed in the space that loam cake 10 and middle cover 20 are surrounded is meshed with motor gear 101, the not level duplex output gear 106 of train of reduction gears 1 is installed on the upper end of potentiometer driving shaft 303, the pinion wheel of duplex output gear 106 and potentiometer driving shaft 303 are fixedly linked and stretch out loam cake 10, and the lower end of potentiometer driving shaft 303 is passed middle cover 20 backs and inserted in the potentiometer 302.Described train of reduction gears 1 is by one-level duplex reduction gearing 102, secondary duplex reduction gearing 103, three grades of duplex reduction gearing 105, level Four duplex reduction gearing 104 and duplex output gear 106 are formed, the one-level duplex subtracts whole gear 102 and is sleeved on the one-level gear shaft 107, secondary duplex reduction gearing 103 and level Four duplex reduction gearing 104 spacer sleeves are contained on the secondary gear axle 108, three grades of duplex reduction gearing 105 are sleeved on the potentiometer driving shaft 303 and are positioned at the bottom of duplex output gear 106, one-level gear shaft 107 and secondary gear axle 108 are fixed between loam cake 10 and the middle cover 20, gear wheel in the one-level duplex reduction gearing 102 is meshed with motor gear 101, pinion wheel in the one-level duplex reduction gearing 102 is meshed with gear wheel in the secondary duplex reduction gearing 103, pinion wheel in the secondary duplex reduction gearing 103 is meshed with gear wheel in three grades of duplex reduction gearing 105, pinion wheel in three grades of duplex reduction gearing 105 is meshed with the gear wheel in the level Four duplex reduction gearing 104, pinion wheel in the level Four duplex reduction gearing 104 is meshed with gear wheel in the duplex output gear 106, and the pinion wheel in the duplex output gear 106 links to each other with potentiometer driving shaft 303 as the output of whole train of reduction gears 1.
The utility model is when assembling, should be earlier the motor shaft of servomotor 301 be upward through middle cover 20, motor gear 101 is installed in the upper end of motor shaft, motor gear 101 and 102 engagements of one-level duplex reduction gearing, secondary duplex reduction gearing 103 is fastened in the servo by a stainless steel cylinder with level Four duplex reduction gearing 104 and covers, level Four duplex speed gear 104 is positioned at the top of secondary duplex reduction gearing 103, three grades of duplex reduction gearing 105 and duplex output gear 106 are that the potentiometer driving shaft 303 of cross post links together with potentiometer 302 by the lower end, duplex output gear 106 is positioned at the top of three grades of duplex reduction gearing 105, said gear makes whole speed change group gear be closely linked by the engagement between mutual.
Principle of work of the present utility model is:
Send signal by external signal and give servo of the present utility model, judge rotation direction via the IC on the circuit board 304, drive coreless servo 301 again and begin to rotate, see through reduction gearing power is reached swing arm, simultaneously send signal back to, judge whether to arrive the location by potentiometer 302.Potentiometer is exactly variable resistor in fact, and resistance value also can change thereupon when servo rotates, the angle of just rotating as can be known by the potentiometer resistance value.Coreless (drag cup) servomotor 301 is that fine copper wire is wrapped on three utmost point rotors, just can produce magnetic field when the electric current flowing through coil, with the magnet generation repulsive interaction of rotor periphery, and then the acting force that rotates.Therefore according to physics principle, the moment of inertia of object is directly proportional with quality, wants the rotating mass big object of healing, and required acting force also more greatly.Rotating speed is fast, power consumption is little in order to ask for servo, and what is that fine copper wire is wound in as thin as a wafer hollow circular cylinder, forms five utmost point hollow rotors that weight is extremely light, and magnet is put in the what right cylinder, Here it is drag cup servomotor.
While is more accurate when rotating in order to make servo, can increase bearing (not identifying among the figure) on duplex output gear 106, and the frictional resistance when it can more effectively reduce the servo rotation makes the servo rotation more flexible accurately.
Owing to the utility model relates to a kind of microminiature servo, the microminiature servo mainly solves light minor issue.Therefore the selection of associated materials is just particularly crucial.At first shell (being made up of loam cake, middle cover, lower cover three parts) material should be selected the transparent translucent ABS material of ultralight amount for use, to effectively reduce the weight of shell, deceleration group gear can be selected the POM gear for use, select three winding drag cup motors of light weight simultaneously for use, circuit board is chosen extra-thin IC nation and is decided circuit board, it can concentrate on all components and parts on the circuit board, avoids increasing extra components and parts, increases the weight of servo.By the selection of above-mentioned material, the Weight control that can make whole servo is about 2.5g.
In sum, the utility model is by the explanation of the foregoing description and correlative type, concrete in detail exposure correlation technique, the working technician of this area can be implemented according to this.And the above embodiments just are used for illustrating the utility model, rather than are used for limiting the utility model patent, and the interest field of the utility model patent should be defined by the claim of the utility model patent.Still all should belong in the interest field of the utility model patent as for the change of described components and parts or the replacement of equivalent components and parts etc. herein.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art to be realized.
Claims (2)
1, a kind of ultramicro minitype servo, comprise loam cake (10), middle cover (20), lower cover (30), circuit board (304), motor (301) and potentiometer (302), circuit board (304) is installed in the lower cover (30) and with motor (301) and potentiometer (302) and is electrically connected, motor (301) and potentiometer (302) are installed on the bottom surface of middle cover (20) and are arranged in middle cover (20) and space that lower cover (30) surrounds, on the output axle head that passes middle cover (20) of motor (301) motor gear (101) is installed, it is characterized in that the one-level duplex reduction gearing (102) that train of reduction gears (1) train of reduction gears (1) is installed is meshed with motor gear (101) in the space that loam cake (10) and middle cover (20) are surrounded, the not level duplex output gear (106) of train of reduction gears (1) is installed on the upper end of potentiometer driving shaft (303), the pinion wheel of duplex output gear (106) stretches out loam cake (10), and the lower end of potentiometer driving shaft (303) is passed middle cover (20) back and inserted in the potentiometer (302).
2, ultramicro minitype servo according to claim 1, it is characterized in that described train of reduction gears (1) is by one-level duplex reduction gearing (102), secondary duplex reduction gearing (103), three grades of duplex reduction gearing (105), level Four duplex reduction gearing (104) and duplex output gear (106) are formed, the one-level duplex subtracts whole gear (102) and is sleeved on the one-level gear shaft (107), secondary duplex reduction gearing (103) and level Four duplex reduction gearing (104) spacer sleeve are contained on the secondary gear axle (108), three grades of duplex reduction gearing (105) are sleeved on the bottom that duplex output gear (106) were gone up and be positioned to potentiometer driving shaft (303), one-level gear shaft (107) and secondary gear axle (108) are fixed between loam cake (10) and the middle cover (20), gear wheel in the one-level duplex reduction gearing (102) is meshed with motor gear (101), pinion wheel in the one-level duplex reduction gearing (102) is meshed with gear wheel in the secondary duplex reduction gearing (103), pinion wheel in the secondary duplex reduction gearing (103) is meshed with gear wheel in three grades of duplex reduction gearing (105), pinion wheel in three grades of duplex reduction gearing (105) is meshed with gear wheel in the level Four duplex reduction gearing (104), pinion wheel in the level Four duplex reduction gearing (104) is meshed with gear wheel in the duplex output gear (106), and the pinion wheel in the duplex output gear (106) links to each other with potentiometer driving shaft (303) as the output of whole train of reduction gears (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201848268U CN201251427Y (en) | 2008-08-29 | 2008-08-29 | Ultra-micro servo machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201848268U CN201251427Y (en) | 2008-08-29 | 2008-08-29 | Ultra-micro servo machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201251427Y true CN201251427Y (en) | 2009-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201848268U Expired - Fee Related CN201251427Y (en) | 2008-08-29 | 2008-08-29 | Ultra-micro servo machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN201251427Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654933A (en) * | 2015-03-12 | 2015-05-27 | 上海新跃仪表厂 | Electric servo mechanism and debugging method thereof |
| CN105890515A (en) * | 2016-06-29 | 2016-08-24 | 上海思博机械电气有限公司 | Gear transmission type multi-ring non-contact digital potentiometer |
| CN106808492A (en) * | 2017-03-30 | 2017-06-09 | 北京智控城服科技有限公司 | A kind of applied robot's joint motor |
| CN109573070A (en) * | 2018-11-06 | 2019-04-05 | 珠海隆华直升机科技有限公司 | The rotary drive assembly of helicopter and helicopter |
| CN109693782A (en) * | 2018-11-06 | 2019-04-30 | 珠海隆华直升机科技有限公司 | The rotary steering engine of helicopter and helicopter |
| CN110792732A (en) * | 2018-08-03 | 2020-02-14 | 惠州市工藤科技有限公司 | Gear reducer with self-locking mechanism |
-
2008
- 2008-08-29 CN CNU2008201848268U patent/CN201251427Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654933A (en) * | 2015-03-12 | 2015-05-27 | 上海新跃仪表厂 | Electric servo mechanism and debugging method thereof |
| CN104654933B (en) * | 2015-03-12 | 2016-06-01 | 上海新跃仪表厂 | A kind of electric servomechanism and adjustment method thereof |
| CN105890515A (en) * | 2016-06-29 | 2016-08-24 | 上海思博机械电气有限公司 | Gear transmission type multi-ring non-contact digital potentiometer |
| CN106808492A (en) * | 2017-03-30 | 2017-06-09 | 北京智控城服科技有限公司 | A kind of applied robot's joint motor |
| CN110792732A (en) * | 2018-08-03 | 2020-02-14 | 惠州市工藤科技有限公司 | Gear reducer with self-locking mechanism |
| CN109573070A (en) * | 2018-11-06 | 2019-04-05 | 珠海隆华直升机科技有限公司 | The rotary drive assembly of helicopter and helicopter |
| CN109693782A (en) * | 2018-11-06 | 2019-04-30 | 珠海隆华直升机科技有限公司 | The rotary steering engine of helicopter and helicopter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20091222 Pledge (preservation): Pledge |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |