CN202014220U - Out-of-step detecting mechanism of stepping motor - Google Patents
Out-of-step detecting mechanism of stepping motor Download PDFInfo
- Publication number
- CN202014220U CN202014220U CN2011201298999U CN201120129899U CN202014220U CN 202014220 U CN202014220 U CN 202014220U CN 2011201298999 U CN2011201298999 U CN 2011201298999U CN 201120129899 U CN201120129899 U CN 201120129899U CN 202014220 U CN202014220 U CN 202014220U
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- stepping motor
- controller
- disc
- blanking disc
- groove
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Abstract
The utility model relates to an out-of-step detecting mechanism of a stepping motor. The out-of-step detecting mechanism comprises a light shading disc, a groove-shaped photoelectric switch and a controller, wherein, the light shading disc is mounted on a rotor output shaft extending out of a housing of the stepping motor; equally-divided disc teeth and disc grooves are formed on the periphery of the light shading disc; the photoelectric switch provided with a detecting groove is mounted on the housing of the stepping motor; the light shading disc is arranged in the detecting groove of the photoelectric switch; an input end of the controller is connected with an output end of the photoelectric switch; and the controller is connected with an input end of the stepping motor through a driver. The out-of-step detecting mechanism feeds back the actual rotation condition of the stepping motor through detecting the light shading disc arranged on the rotor output shaft of the stepping motor, and has the characteristics of reasonable structure, low cost, high positioning accuracy and high position resolution.
Description
Technical field
The utility model relates to a kind of detection of loss of mains mechanism of stepping motor, belongs to the stepping motor technical field.
Background technology
As everyone knows, receive a pulse, just make step angle of rotor rotation, and rely on electromagnetic force locking rotating shaft on certain position when stepping motor.Therefore, stepping motor will be by the number of driving pulse, the angle that control is rotated, and under the not high occasion of positioning accuracy, stepping motor system all adopts open loop control.But because the influence of factors such as intrinsic low-frequency resonance, the high frequency moment of torsion of stepping motor step-out that causes such as little and mechanical structure, the capital causes the actual rotation angle deviating set point of stepping motor, causes the precision and the performance of the stepping motor of open loop control to can not get guaranteeing.Under the occasion of high position precision, existing technology is that the load behind the reducing gear of stepping motor goes out axle head one high-precision photoelectric code disk is set, when stepping motor drives the code-disc rotation, detect the rotational angle of stepping motor shaft by the optics of precision, feed back to control step motor and drive signal and compare, to detect whether step-out of stepping motor.This structure need adopt high-precision photoelectric code disk, not only costs an arm and a leg, and complex structure, debugging difficulty is big.
Summary of the invention
The purpose of this utility model provides a kind of rational in infrastructure, the detection of loss of mains mechanism low-cost, that the stepping motor of higher positioning accuracy and position resolution is arranged.
The utility model is that the technical scheme that achieves the above object is: a kind of detection of loss of mains mechanism of stepping motor, it is characterized in that: comprise blanking disc, optoelectronic switch and controller, described blanking disc is installed on the rotor shaft that extends the stepping motor casing, the periphery of blanking disc has the dish tooth and the dish groove of five equilibrium, having the optoelectronic switch that detects groove is installed on the casing or bearing of stepping motor, blanking disc is arranged in the detection groove of optoelectronic switch, the input of controller is connected with the output of optoelectronic switch, and controller is connected with the input of stepping motor by driver.
The utility model is installed in blanking disc the rotor shaft of stepping motor outside, therefore work as drive signal and affact stepping motor, the rotor shaft of stepping motor drives blanking disc and rotates synchronously together, also driving the load shaft by reduction gearing mechanism simultaneously rotates, optoelectronic switch detected the rotation of blanking disc and obtained a set of pulses signal this moment, and the rotation situation of rotor shaft fed back to controller, the controller pulse signals is handled, calculate and comparison, detect whether step-out of stepping motor with this, and stepping motor effectively proofreaied and correct and compensate, debugging is convenient, accurately.The utility model is directly to be placed on the rotor shaft with blanking disc, does not pass through the deceleration of reducing gear, so its positioning accuracy and position resolution be greatly improved, and is rational in infrastructure, thus the low-cost closed-loop control that realizes stepping motor.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the structural representation of the detection of loss of mains mechanism of the utility model stepping motor.
Fig. 2 is the structural representation of the utility model blanking disc.
Wherein: 1-load shaft, the 2-stepping motor, 3-rotor shaft, the 4-blanking disc, 41-coils tooth, and 42-coils groove, the 5-optoelectronic switch, 51-detects groove, 6-bearing, 7-drive signal, 8-controller.
Embodiment
See shown in Fig. 1,2 that the detection of loss of mains mechanism of stepping motor of the present utility model comprises blanking disc 4, optoelectronic switch 5 and controller 8.The rotor shaft 3 of stepping motor 2 is connected with load shaft 1 by reducing gear, during stepping motor 2 work, drive rotor shaft 3 and 1 rotation of load shaft simultaneously, owing to pass through reducing gear, make the load shaft 1 and the speed reducing ratio of rotor shaft 3 can be 1: m, promptly the rotating speed of rotor shaft 3 be load shaft 1 rotating speed m doubly.See Fig. 1, shown in 2, the utility model blanking disc 4 is installed on the rotor shaft 3 that extends stepping motor 2 casings, and the periphery of blanking disc 4 has the dish tooth 41 and the dish groove 42 of five equilibrium, dish tooth 41 numbers of this blanking disc 4 equal the number of poles of stepping motor 2, the dish tooth 41 energy uniform rotation on the blanking disc 4 had both been guaranteed, the feedback signal pulse duration that obtains is identical, and guarantee can not reduce the precision of detection of loss of mains, having the optoelectronic switch 5 that detects groove 51 is installed on the casing or bearing 6 of stepping motor 2, blanking disc 4 is arranged in the detection groove 51 of optoelectronic switch 5, the input of controller 8 is connected with the output of optoelectronic switch 5, controller 8 is connected with the input of stepping motor 2 by driver 7, contrast by controller 8, calculate the back and pass through driver 7 control step motors 2, controller 8 of the present utility model can adopt conventional single-chip microcomputer such as MSP430 series monolithic, and driver can adopt A3901 full-bridge type motor driver.
See shown in Fig. 1,2, during the utility model work, rotor shaft 3 actions of driver 7 control step motors 2, blanking disc 4 is with in rotor shaft 3 rotation processes, blanking disc 4 is detected, when the dish tooth 41 of blanking disc 4 passes through optoelectronic switch 5, optoelectronic switch 5 output high level; And when the dish groove 42 of blanking disc 4 passes through optoelectronic switch 5, optoelectronic switch 5 output reverse pumpings go out low level, optoelectronic switch 5 inputs to controller 8 with the feedback pulse signal that obtains, 8 pairs of feedback pulse signals of controller are handled, at first calculate the angular displacement and the speed of rotor shaft 3, and calculate the angular displacement and the speed of load shaft 1 again by speed reducing ratio m, compare controlled signal, output control signals to driver 7 and drive stepping motor 2 by controller 8, stepping motor 2 is effectively proofreaied and correct and compensated, thus the closed-loop control of realization stepping motor 2.
Claims (2)
1. the detection of loss of mains mechanism of a stepping motor, it is characterized in that: comprise blanking disc (4), optoelectronic switch (5) and controller (8), described blanking disc (4) is installed on the rotor shaft (3) that extends stepping motor (2) casing, the periphery of blanking disc (4) has the dish tooth (41) and the dish groove (42) of five equilibrium, optoelectronic switch (5) with detection groove (51) is installed on the casing or bearing (6) of stepping motor (2), blanking disc (4) is arranged in the detection groove (51) of optoelectronic switch (5), the input of controller (8) is connected with the output of optoelectronic switch (5), and controller (8) is connected with the input of stepping motor (2) by driver (7).
2. the detection of loss of mains mechanism of stepping motor according to claim 1 is characterized in that: the several numbers of poles that equal stepping motor (2) of the dish tooth (41) of described blanking disc (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201298999U CN202014220U (en) | 2011-04-28 | 2011-04-28 | Out-of-step detecting mechanism of stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201298999U CN202014220U (en) | 2011-04-28 | 2011-04-28 | Out-of-step detecting mechanism of stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202014220U true CN202014220U (en) | 2011-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201298999U Expired - Lifetime CN202014220U (en) | 2011-04-28 | 2011-04-28 | Out-of-step detecting mechanism of stepping motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN202014220U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359031A (en) * | 2013-07-26 | 2013-10-23 | 孙博华 | Stepping motor feedback system suitable for adjustable rear protection device of heavy duty vehicle |
| CN104765387A (en) * | 2015-04-20 | 2015-07-08 | 泸州市慧江机械制造有限公司 | Rotary piston type flow meter |
| CN105811821A (en) * | 2016-04-28 | 2016-07-27 | 深圳市保凌影像科技有限公司 | Out-of-step prevention device for stepping motor of high-speed cloud billiard ball machine |
| CN107689757A (en) * | 2016-12-28 | 2018-02-13 | 江苏博权医疗科技有限公司 | A kind of groove type photoelectric switch structure of medical stepper motor travel control device |
| CN108631665A (en) * | 2017-03-15 | 2018-10-09 | 杭州三花研究院有限公司 | A kind of motor control method and motor control assembly |
| CN108626919A (en) * | 2017-03-15 | 2018-10-09 | 杭州三花研究院有限公司 | The control method and air-conditioner control system of electric expansion valve |
| CN110165950A (en) * | 2019-05-25 | 2019-08-23 | 福州伊柯达信息技术有限公司 | Two-phase hybrid stepping motor step-out method of discrimination |
| CN110607222A (en) * | 2019-09-24 | 2019-12-24 | 广州市金圻睿生物科技有限责任公司 | Precision optical device auxiliary motion mechanism and gene sequencer |
| CN114244204A (en) * | 2021-12-13 | 2022-03-25 | 西安瑞峰光电技术有限公司 | Method, system and device for preventing step-by-step motor from being out of step |
-
2011
- 2011-04-28 CN CN2011201298999U patent/CN202014220U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103359031A (en) * | 2013-07-26 | 2013-10-23 | 孙博华 | Stepping motor feedback system suitable for adjustable rear protection device of heavy duty vehicle |
| CN104765387A (en) * | 2015-04-20 | 2015-07-08 | 泸州市慧江机械制造有限公司 | Rotary piston type flow meter |
| CN105811821A (en) * | 2016-04-28 | 2016-07-27 | 深圳市保凌影像科技有限公司 | Out-of-step prevention device for stepping motor of high-speed cloud billiard ball machine |
| CN107689757A (en) * | 2016-12-28 | 2018-02-13 | 江苏博权医疗科技有限公司 | A kind of groove type photoelectric switch structure of medical stepper motor travel control device |
| CN108631665A (en) * | 2017-03-15 | 2018-10-09 | 杭州三花研究院有限公司 | A kind of motor control method and motor control assembly |
| CN108626919A (en) * | 2017-03-15 | 2018-10-09 | 杭州三花研究院有限公司 | The control method and air-conditioner control system of electric expansion valve |
| CN110165950A (en) * | 2019-05-25 | 2019-08-23 | 福州伊柯达信息技术有限公司 | Two-phase hybrid stepping motor step-out method of discrimination |
| CN110607222A (en) * | 2019-09-24 | 2019-12-24 | 广州市金圻睿生物科技有限责任公司 | Precision optical device auxiliary motion mechanism and gene sequencer |
| CN114244204A (en) * | 2021-12-13 | 2022-03-25 | 西安瑞峰光电技术有限公司 | Method, system and device for preventing step-by-step motor from being out of step |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213000 Zhencen Village, Luoyang Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Huayang Intelligent Equipment Co., Ltd. Address before: 213104 No. 8 Cencun Road, Luoyang Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: Jiangsu Huayang Electrical Appliances Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |