CN205377726U - Servo motor drive arrangement - Google Patents
Servo motor drive arrangement Download PDFInfo
- Publication number
- CN205377726U CN205377726U CN201620108977.XU CN201620108977U CN205377726U CN 205377726 U CN205377726 U CN 205377726U CN 201620108977 U CN201620108977 U CN 201620108977U CN 205377726 U CN205377726 U CN 205377726U
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- China
- Prior art keywords
- servo motor
- axle sleeve
- signal input
- sensing axle
- driving device
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Abstract
The utility model provides a servo motor drive arrangement, the manager comprises a control unit, two at least servo motor and the drive shaft of being connected with servo motor, a plurality of servo motor and same the control unit, still include casing and sensing axle sleeve, be provided with the sensing axle sleeve in the drive shaft, the sensing axle sleeve is including the cover body, the equidistant magnet steel that is provided with is gone up to the cover body, the central point department of putting of magnet steel is provided with the perforation, cover body radius is not less than fenestrate radial half with drive shaft radius difference, sensing axle sleeve both sides are provided with two sets of infrared photoelectric sensor and a hall sensor, hall sensor sets up at the infrared photoelectric sensor intermediate position, infrared photoelectric sensor's transmitting terminal and receiving terminal central point align with fenestrate central point. The utility model has the advantages of the signal feedback is accurate, and the error rate is little.
Description
Technical field
This utility model relates to Serve Motor Control field, particularly relates to a kind of servo motor driving device.
Background technology
Servomotor can make control speed, and positional precision is very accurate, it is possible to voltage signal is converted into torque and rotating speed to drive control object.Servo motor rotor rotating speed is controlled by input signal, and energy fast reaction, in automatic control system, as executive component, and there is the characteristics such as electromechanical time constant is little, the linearity is high, pickup voltage, the signal of telecommunication received can be converted to the angular displacement on motor reel or angular velocity output.But in actual use, servomotor can not be in glitch-free working environment forever, and the main feedback system of servomotor to be the mode changed by current/voltage carried out, so easily producing very big error.
Utility model content
Thering is provided a kind of servo motor driving device for the deficiencies in the prior art part this utility model, this utility model promotes feedback precision by increasing external feedback module.
nullThe technical solution of the utility model is to provide a kind of servo motor driving device，Including control unit、At least two servomotor and the driving axle being connected with described servomotor，Multiple described servomotors and same described control unit，It is characterized in that: also include housing and sensing axle sleeve，Described driving axle is provided with sensing axle sleeve，Described sensing axle sleeve includes body，Described body is equidistantly provided with magnet steel，The center position of described magnet steel is provided with perforation，Described body radius and described driving axle semidiameter are not less than 1/2nd of the radius of described perforation，Described sensing axle sleeve both sides are provided with two groups of infrared tubes and a Hall element，Described Hall element is arranged on described infrared tube centre position，The transmitting terminal of described infrared tube aligns with the central point of receiving terminal central point with described perforation.
Thus, this utility model is provided with sensing axle sleeve on the driving shaft, sensing shaft puts the magnet steel of setting for coordinating Hall element that rotating speed and corner are sampled, rotating speed and corner are also sampled by infrared sensor simultaneously, this the two sampling dependent simultaneously because infrared tube only talented just to perforation time could read, and Hall element is also such, so the theoretical sampled value of the two should be identical, exactly because perforation being arranged on magnet steel center also this reason.
As of the present utility model preferably, described control unit includes calibration module, described calibration module includes magnetic signal input, infrared signal input and first order comparator, described magnetic signal input is all connected with described first order comparator with described infrared signal input, described magnetic signal input is connected with described Hall element, and described infrared signal input is connected with described infrared tube.
Thus, both sampled signals are compared in the first order comparator output, increase the precision of sampling.
As of the present utility model preferably, described calibration module also includes motor signal input and the second level comparator of the feedback signal for collecting described servomotor, and described motor signal input is connected with the input of described first order comparator with described second level comparator.
Thus, the signal of output in first order comparator and the feedback signal of servomotor are carried out contrasting output in the comparator of the second level and obtain the most accurate feedback signal.
As of the present utility model preferably, described sensing axle sleeve position hexagonal structure, described magnet steel is arranged on four sides that described sensing axle sleeve is symmetrical.
As of the present utility model preferably, described magnet steel is disposed on two groups of sides that described sensing axle sleeve is relative.
As of the present utility model preferably, the transmitting direction of the described infrared tube being arranged on described Hall element both sides is parallel to each other.
As of the present utility model preferably, described body is provided with connection both sides described in perforation through hole, be provided with reflecting coating in described through hole.
This utility model has the advantages that
This utility model has signal feedback accurately, the advantage that error rate is little.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is sensing shaft nested structure schematic diagram of the present utility model；
Fig. 3 is calibration module system block diagram of the present utility model；
In figure, 1-control unit；2-servomotor；3-drives axle；4-senses axle sleeve；5-housing；6-Hall element；7-infrared tube；101-calibration module；1011-magnetic signal input；1012-infrared signal input；1013-first order comparator；1014-motor signal input；1015-second level comparator；401-body；402-magnet steel；403-bores a hole；4011-through hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
nullAs shown in Figure 1 to Figure 2，This utility model embodiment includes control unit 1、At least two servomotor 2 and the driving axle 3 being connected with servomotor 2，Multiple servomotors 2 and same control unit 1，It is characterized in that: also include housing 5 and sensing axle sleeve 4，Drive and axle 3 is provided with sensing axle sleeve 4，Sensing axle sleeve 4 includes body 401，Body 401 is equidistantly provided with magnet steel 402，The center position of magnet steel 402 is provided with perforation 403，Body 401 radius is not less than 1/2nd of the radius of perforation 403 with driving axle 3 semidiameter，Sensing axle sleeve 4 both sides are provided with two groups of infrared tubes 7 and a Hall element 6，Hall element 6 is arranged on infrared tube 7 centre position，The transmitting terminal of infrared tube 7 aligns with the central point of receiving terminal central point with perforation 403.
As shown in Figure 3, this utility model embodiment control unit 1 includes calibration module 101, calibration module 101 includes magnetic signal input 1011, infrared signal input 1012 and first order comparator 1013, magnetic signal input 1011 is all connected with first order comparator 1013 with infrared signal input 1012, magnetic signal input 1011 is connected with Hall element 6, and infrared signal input 1012 is connected with infrared tube 7.Calibration module 101 also includes motor signal input 1014 and the second level comparator 1015 of the feedback signal for collecting servomotor 2, and motor signal input 1014 is connected with the input of first order comparator 1013 with second level comparator 1015.Wherein first order comparator 1013 is two signals carry out continuous reading in same time period then compare program module or the components and parts of quantity output meansigma methods, and second level comparator 1015 is program module or components and parts that two signals compare output meansigma methods
As in figure 2 it is shown, this utility model embodiment sensing 4 hexagonal structures of axle sleeve, magnet steel 402 is arranged on four sides of sensing axle sleeve 4 symmetry.Magnet steel 402 is disposed on two groups of sides that sensing axle sleeve 4 is relative.The transmitting direction of the infrared tube 7 being arranged on Hall element 6 both sides is parallel to each other.Body 401 is provided with the through hole 4011 of connection two side perforations 403, in through hole 4011, is provided with reflecting coating 4012.
Embodiment described above is only that preferred implementation of the present utility model is described, and not design of the present utility model and scope is defined.Under the premise without departing from this utility model design concept; various modification that the technical solution of the utility model is made by this area ordinary person and improvement; protection domain of the present utility model all should be dropped into, the technology contents that this utility model is claimed, all record in detail in the claims.
Claims (7)
- null1. a servo motor driving device，Including control unit (1)、At least two servomotor (2) and the driving axle (3) being connected with described servomotor (2)，Multiple described servomotors (2) and same described control unit (1)，It is characterized in that: also include housing (5) and sensing axle sleeve (4)，Described driving axle (3) is provided with sensing axle sleeve (4)，Described sensing axle sleeve (4) includes body (401)，Described body (401) is equidistantly provided with magnet steel (402)，The center position of described magnet steel (402) is provided with perforation (403)，Described body (401) radius and described driving axle (3) semidiameter are not less than 1/2nd of the radius of described perforation (403)，Described sensing axle sleeve (4) both sides are provided with two groups of infrared tubes (7) and a Hall element (6)，Described Hall element (6) is arranged on described infrared tube (7) centre position，The transmitting terminal of described infrared tube (7) aligns with the central point of receiving terminal central point with described perforation (403).
- 2. a kind of servo motor driving device according to claim 1, it is characterized in that: described control unit (1) includes calibration module (101), described calibration module (101) includes magnetic signal input (1011), infrared signal input (1012) and first order comparator (1013), described magnetic signal input (1011) is all connected with described first order comparator (1013) with described infrared signal input (1012), described magnetic signal input (1011) is connected with described Hall element (6), described infrared signal input (1012) is connected with described infrared tube (7).
- 3. a kind of servo motor driving device according to claim 2, it is characterized in that: described calibration module (101) also includes motor signal input (1014) and the second level comparator (1015) of the feedback signal for collecting described servomotor (2), and described motor signal input (1014) is connected with the input of described first order comparator (1013) with described second level comparator (1015).
- 4. a kind of servo motor driving device according to claim 1, it is characterised in that: described sensing axle sleeve (4) position hexagonal structure, described magnet steel (402) is arranged on four sides that described sensing axle sleeve (4) is symmetrical.
- 5. a kind of servo motor driving device according to claim 4, it is characterised in that: described magnet steel (402) is disposed on two groups of sides that described sensing axle sleeve (4) is relative.
- 6. a kind of servo motor driving device according to claim 1, it is characterised in that: the transmitting direction of the described infrared tube (7) being arranged on described Hall element (6) both sides is parallel to each other.
- 7. a kind of servo motor driving device according to claim 1, it is characterised in that: described body (401) is provided with the through hole (4011) of perforation (403) described in connection both sides, in described through hole (4011), is provided with reflecting coating (4012).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620108977.XU CN205377726U (en) | 2016-02-03 | 2016-02-03 | Servo motor drive arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620108977.XU CN205377726U (en) | 2016-02-03 | 2016-02-03 | Servo motor drive arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205377726U true CN205377726U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620108977.XU Active CN205377726U (en) | 2016-02-03 | 2016-02-03 | Servo motor drive arrangement |
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| CN (1) | CN205377726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720866A (en) * | 2016-02-03 | 2016-06-29 | 浙江科宁电机有限公司 | Servo motor drive device |
-
2016
- 2016-02-03 CN CN201620108977.XU patent/CN205377726U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720866A (en) * | 2016-02-03 | 2016-06-29 | 浙江科宁电机有限公司 | Servo motor drive device |
| CN105720866B (en) * | 2016-02-03 | 2018-09-11 | 浙江科宁电机有限公司 | A kind of servo motor driving device |
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| GR01 | Patent grant |