CN204388874U - Novel encoder structure - Google Patents
Novel encoder structure Download PDFInfo
- Publication number
- CN204388874U CN204388874U CN201520014729.4U CN201520014729U CN204388874U CN 204388874 U CN204388874 U CN 204388874U CN 201520014729 U CN201520014729 U CN 201520014729U CN 204388874 U CN204388874 U CN 204388874U
- Authority
- CN
- China
- Prior art keywords
- disc
- code
- line plate
- tube
- photic zone
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Optical Transform (AREA)
Abstract
The utility model discloses a kind of Novel encoder structure, comprise code-disc and at least one pair of infrared emitting, receiving tube, code-disc is provided with photic zone and Zu Guang district, code-disc is set in the axle head of motor by keyway, the below of code-disc is provided with lower-class line plate, the top of code-disc is provided with top line plate, the insulated support with code-disc groove is provided with between lower-class line plate and top line plate, insulated support and lower-class line plate, top line plate is all by register pin clamping, infrared emission tube is arranged on top line plate, infrared receiver tube is arranged on lower-class line plate, often pair of infrared emitting, by the electrical connection of corresponding row's pin between receiving tube, often pair of infrared emission tube, insulated support between receiving tube all offers light tank.The utility model not only eliminates the bending of infrared emission tube and receiving tube complexity, installation and location, and drastically increases assembling speed and the precision of scrambler, improves the precision of motor location, reduces cost.
Description
Technical field
The utility model relates to a kind of scrambler.
Background technology
Scrambler is a kind of device variable quantity of displacement (angular displacement or displacement of the lines) being converted to electric signal.Contact and contactless two kinds can be divided into according to reading manner scrambler.Contact adopts brush to export, and is " 1 " with the state of brush contact conduction region, to contact the state of insulation layer for " 0 "; Contactless general employing light activated element or magneto sensor, when adopting light activated element, being " 1 " with the state of photic zone, is " 0 " with the state in Zu Guang district.
As shown in Figures 1 to 4, in prior art, the scrambler 1 of above-mentioned employing light activated element, mainly comprise: a code-disc 2 being set in motor shaft end, code-disc 2 is provided with lenticular lenses, the two sides of code-disc 2 is arranged with some to infrared emission tube 3 and receiving tube 4, often pair of infrared emitter and receiver 3,4 is by corresponding grid gap receiving optical signals thoroughly, to obtain some groups of signals (such as A, B, C phase sequential signal and Z point signal), the often pair of infrared emission tube, receiving tube are arranged on shell 5 two ends of a medial recess, finally by capping 1 buckle.Because the structural design of this scrambler shell 5 is unreasonable, make when assembling infrared emission tube 3 and receiving tube 4 in it, due to infrared emission tube 3 and receiving tube 4 very little, both be not easy to be affectedly bashful, be not easy plug-in card again, assembling speed does not increase, moreover, in assembling process, also need the pin bending 90 degree one by one infrared emission tube 3 and receiving tube 4, then also need to intert on wiring board 6 weld, assembly precision be not easy very much ensure, directly affects production efficiency and the accuracy of detection of scrambler.
When encoder applies is in sewing machine field, be mainly used for controlling the accurate location of electrical motor of sewing machine.The height of motor positioning precision directly has influence on the stability, life-span etc. of sewing efficiency, machinery.If location is inaccurate, sewing machine at every turn parking automatic scissors time, blade may get to eedle, cause physical damage.Perform when returning continuously joint function, cannot realize just as with the pin apertures backstitched, affect stitching, damage fabric.Therefore, positioning precision is particularly important on sewing machine, the height of precision, will directly determine the height of sewing machine performance.Prior art can only improve positioning precision, the defect that this mode exists by improving the distribution density of raster grid on code-disc 2 usually: a cost being the increase in grating, two be the distribution density of raster grid because of the restriction by process technology, be difficult to raising.
Utility model content
The purpose of this utility model is to provide a kind of Novel encoder structure, not only eliminates the bending of prior art middle infrared (Mid-IR) power valve and receiving tube complexity, installation and location, and drastically increases assembling speed and the assembly precision of scrambler.
For achieving the above object, the utility model adopts following technical scheme:
A kind of Novel encoder structure, comprise code-disc and at least one pair of infrared emitting, receiving tube, code-disc is provided with photic zone and Zu Guang district, often pair of infrared emission tube, infrared receiver tube is by corresponding photic zone receiving optical signals, code-disc is set in the axle head of motor by keyway, the below of code-disc is provided with lower-class line plate, the top of code-disc is provided with top line plate, insulated support is provided with between lower-class line plate and top line plate, between insulated support and lower-class line plate, all by corresponding register pin clamping between insulated support to top line plate, the middle part of insulated support is radially provided with code-disc groove, described infrared emission tube is arranged on top line plate, described infrared receiver tube is arranged on lower-class line plate, often pair of infrared emitting, by the electrical connection of corresponding row's pin between receiving tube, often pair of infrared emission tube, insulated support between receiving tube all offers light tank.
Described infrared emission tube is paster infrared emission components and parts, and described infrared receiver tube is paster infrared receiver components and parts.
Described photic zone has four, wherein three is circular arc photic zone, the central angle of these three circular arc photic zones is 60 degree and is distributed on the circumferentially same of code-disc, 4th is narrow slit photic zone, this narrow slit photic zone be distributed in code-disc another circumferentially, described infrared emission tube, infrared receiver tube have U1, V1, W1 and Z1 tetra-right, wherein U1, V1, W1 tri-to all by circular arc photic zone Received signal strength and adjacent two between radial angle be A; Described 4th couple of Z1 is by narrow slit photic zone Received signal strength and be positioned on the equidistant point of U1, V1 or V1, the radial angle of W1.
Described included angle A is 40 degree.
Compared with prior art the beneficial effects of the utility model are: code-disc is set in the axle head of motor by keyway, code disc loading timing, code-disc assembling can be completed accurately, not only eliminate orientation assemble all modulated separately by the every platform machine of traditional raster sheet step to grating, and the very simple of change is installed.The below of code-disc is provided with lower-class line plate, the top of code-disc is provided with top line plate, insulated support is provided with between lower-class line plate and top line plate, between insulated support and lower-class line plate, all by corresponding register pin clamping between insulated support to top line plate, the middle part of insulated support is radially provided with code-disc groove, described infrared emission tube is arranged on top line plate, described infrared receiver tube is arranged on lower-class line plate, often pair of infrared emitting, by the electrical connection of corresponding row's pin between receiving tube, often pair of infrared emission tube, insulated support between receiving tube all offers light tank, this coder structure, not only eliminate the bending of prior art middle infrared (Mid-IR) power valve and receiving tube complexity, install and location, and by corresponding register pin clamping, drastically increase assembling speed and assembly precision, thus improve production efficiency and the accuracy of detection of scrambler.When certain photic zone on code-disc rotate to certain to infrared emitter and receiver between time, the light that described infrared emission tube sends through corresponding photic zone and light tank, can be irradiated to corresponding infrared receiver tube accurately.
Further beneficial effect is, described photic zone has four, wherein three is circular arc photic zone, the central angle of these three circular arc photic zones is 60 degree and is distributed on the circumferentially same of code-disc, 4th is narrow slit photic zone, this narrow slit photic zone be distributed in code-disc another circumferentially, described infrared emission tube, infrared receiver tube have U1, V1, W1 and Z1 tetra-right, wherein U1, V1, W1 tri-to all by circular arc photic zone Received signal strength and adjacent two between radial angle be A; Described 4th couple of Z1 is by narrow slit photic zone Received signal strength and be positioned on the equidistant point of U1, V1 or V1, the radial angle of W1, this layout, multipair infrared emission tube, receiving tube are integrated, further increases assembling speed, and installation accuracy each other can be improved.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of scrambler in prior art;
Fig. 2 is the part-structure schematic diagram of scrambler in Fig. 1;
Fig. 3 is the mounting structure schematic diagram of Fig. 2 middle infrared (Mid-IR) power valve and receiving tube;
Fig. 4 is the fractionation structural representation of Fig. 3;
Fig. 5 the utility model eliminates the structural representation of code-disc;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is that the A-A of Fig. 6 is to cut-open view;
Fig. 8 is the fractionation structural representation that the utility model eliminates code-disc;
Fig. 9 is the partial enlarged drawing of Fig. 8;
Figure 10 is code-disc structural representation of the present utility model;
Figure 11 is the signal waveform schematic diagram of the utility model A, B, C, Z.
Embodiment
As shown in Fig. 5 to 11, the utility model is a kind of Novel encoder structure, it comprises code-disc 2 and at least one pair of infrared emission tube 3, infrared receiver tube 4, described code-disc 2 is provided with photic zone and Zu Guang district, code-disc 2 is set in the axle head of motor by keyway, the below of code-disc 2 is provided with lower-class line plate 5, the top of code-disc 2 is provided with top line plate 6, insulated support 7 is provided with between lower-class line plate 5 and top line plate 6, between insulated support 7 and lower-class line plate 5, all by corresponding register pin 10 clamping between insulated support 7 to top line plate 6, the middle part of insulated support 7 is radially provided with code-disc groove 1, described infrared emission tube 3 is arranged on top line plate 6, described infrared receiver tube 4 is arranged on lower-class line plate 5, often pair of infrared emitting, receiving tube 3, be electrically connected by corresponding row's pin 9 between 4, often pair of infrared emission tube 3, insulated support 7 between receiving tube 4 all offers light tank 8.In the present embodiment, photic zone is preferably four, wherein three is circular arc photic zone U, V, W, these three circular arc photic zone U, V, the central angle of W is 60 degree and is distributed on the circumferentially same of code-disc 2, 4th is narrow slit photic zone Z, this narrow slit photic zone Z be distributed in code-disc 2 another circumferentially, the present embodiment middle infrared (Mid-IR) power valve 3, infrared receiver tube 4 is preferably U1, V1, W1 and Z1 tetra-is right, wherein U1, V1, W1 tri-pairs of infrared emission tubes, infrared receiver tube all by circular arc photic zone Received signal strength and adjacent two between radial angle be preferably 40 degree, described 4th pair of Z1 infrared emission tube, infrared receiver tube are by narrow slit photic zone Z Received signal strength and be positioned on the equidistant point of U1, V1 or V1, the radial angle of W1.In the present embodiment, described infrared emission tube 3 is paster infrared emission components and parts, and described infrared receiver tube 4 is paster infrared receiver components and parts.
Use above-mentioned Novel encoder structure to carry out the method for motor location, mainly comprise the steps:
1, collection signal step:
Gather A, B, C tri-groups of signals respectively by U1, V1, W1 tri-pairs of infrared emitter and receivers 3,4 of described Novel encoder, by described Z1, Z point signal is gathered to infrared emitter and receiver 3,4;
2, angular velocity step is calculated:
By the control system be made up of high speed digital signal processor DSP, A, B, C of collecting tri-groups of signals and Z point signal are calculated;
By three photic zone U, V, W and U1, V1, W1 tri-pairs of infrared emittings, receiving tube 3, the structure distribution of 4 is known, two of arbitrary neighborhood are spaced apart 20 degree between rising edge and negative edge, when after described electric machine rotation, after Novel encoder collects rising edge in an ABC or negative edge, when next negative edge or rising edge being detected so again, the angle of electric machine rotation is 20 degree, 20 degree of time T1 used are turned over by record motor, then motor turns over these the 20 degree angular velocity V1=20/T1 run, after continuous operation, current continuous print mean angular velocity v=(V1+....+VN)/(T1+....+TN) is calculated by multiple described turn meter,
Z point signal is the monumented point that motor rotation one encloses, and after control system detects Z signal, carries out clear operation, starts again to count, and completes a computation period;
3, anchor point step is gone out by working time and average angular speed calculation:
Control system is after getting continuous and stable mean angular velocity v, and the orientation angle a between two rising edges of arbitrary neighborhood or negative edge can be calculated by t and mean angular velocity v working time, i.e. a=vt;
4, motor positioning step is controlled:
Control system, according to the orientation angle a that calculates, sends steering order, to be driven and locate by driving circuit to motor;
5, compensating approach step: rotor magnetic field feedback current i exists corresponding relation with continuous and stable mean angular velocity v, while A, B, C tri-groups of signals and Z point signal is gathered, calculating, by sensor, rotor magnetic field feedback current i is detected, numerical value according to current i compensates and corrects v, improves the precision of orientation angle a further.
Structure and distribution is stated by what improve photic zone and infrared emitter and receiver, just can realize precise positioning according to angular velocity and time parameter, instead of traditional grid physical positioning, do not re-use expensive lenticular lenses, not only positioning precision improves further, and greatly reduces cost.Such as, the positioning precision of traditional raster sheet code-disc, for 1600 lines (namely code-disc has 400 grating grooves for one week), positioning precision theoretical value is one week 1/1600th, namely 0.225 degree, and due to the restriction of control technology and control efficiency, theoretical value is difficult to realize in practice, and the actual precision that arrives is generally about 0.3-0.5 degree.Use the utility model to locate, we have reached 0.1 degree at present, and theoretically, if needed, precision can also improve further.
Claims (4)
1. a Novel encoder structure, comprise code-disc (2) and at least one pair of infrared emitting, receiving tube (3, 4), code-disc (2) is provided with photic zone and Zu Guang district, often pair of infrared emission tube (3), infrared receiver tube (4) is by corresponding photic zone receiving optical signals, it is characterized in that: code-disc (2) is set in the axle head of motor by keyway, the below of code-disc (2) is provided with lower-class line plate (5), the top of code-disc (2) is provided with top line plate (6), insulated support (7) is provided with between lower-class line plate (5) and top line plate (6), between insulated support (7) and lower-class line plate (5), all by corresponding register pin (10) clamping between insulated support (7) and top line plate (6), the middle part of insulated support (7) is radially provided with code-disc groove (1), described infrared emission tube (3) is arranged on top line plate (6), described infrared receiver tube (4) is arranged on lower-class line plate (5), often pair of infrared emitting, receiving tube (3, 4) by arranging pin (9) electrical connection accordingly between, often pair of infrared emission tube (3), insulated support (7) between receiving tube (4) all offers light tank (8).
2. Novel encoder structure according to claim 1, is characterized in that: described infrared emission tube (3) is paster infrared emission components and parts, and described infrared receiver tube (4) is paster infrared receiver components and parts.
3. Novel encoder structure according to claim 1 and 2, it is characterized in that: described photic zone has four, wherein three is circular arc photic zone (U, V, W), these three circular arc photic zone (U, V, W) central angle is 60 degree and is distributed on the circumferentially same of code-disc (2), 4th is narrow slit photic zone (Z), this narrow slit photic zone (Z) be distributed in code-disc (2) another circumferentially, described infrared emission tube (3), infrared receiver tube (4) has U1, V1, W1 and Z1 tetra-is right, wherein U1, V1, W1 tri-is to all by circular arc photic zone (U, V, W) Received signal strength and adjacent two between radial angle be A, described 4th couple of Z1 passes through narrow slit photic zone (Z) Received signal strength and is positioned on the equidistant point of U1, V1 or V1, the radial angle of W1.
4. Novel encoder structure according to claim 3, is characterized in that: described included angle A is 40 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014729.4U CN204388874U (en) | 2015-01-09 | 2015-01-09 | Novel encoder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520014729.4U CN204388874U (en) | 2015-01-09 | 2015-01-09 | Novel encoder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204388874U true CN204388874U (en) | 2015-06-10 |
Family
ID=53361585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520014729.4U Withdrawn - After Issue CN204388874U (en) | 2015-01-09 | 2015-01-09 | Novel encoder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204388874U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501845A (en) * | 2015-01-09 | 2015-04-08 | 杭州谷立电气技术有限公司 | Novel encoder structure and motor locating method using the same |
| CN108917653A (en) * | 2018-03-20 | 2018-11-30 | 刘红阳 | Rotational angle measurement method and device |
-
2015
- 2015-01-09 CN CN201520014729.4U patent/CN204388874U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501845A (en) * | 2015-01-09 | 2015-04-08 | 杭州谷立电气技术有限公司 | Novel encoder structure and motor locating method using the same |
| CN104501845B (en) * | 2015-01-09 | 2017-08-25 | 杭州谷立电气技术有限公司 | Novel encoder structure and its method for carrying out motor positioning |
| CN104501845B9 (en) * | 2015-01-09 | 2017-10-24 | 杭州谷立电气技术有限公司 | Novel encoder structure and method for positioning motor by using same |
| CN108917653A (en) * | 2018-03-20 | 2018-11-30 | 刘红阳 | Rotational angle measurement method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104501845A (en) | Novel encoder structure and motor locating method using the same | |
| CN103098366B (en) | Phase deviation checkout gear, motor drive, brushless motor and phase deviation detection method | |
| CN104079218B (en) | A kind of motor rotor position angle preparation method | |
| CN103292806B (en) | The magnetic navigation system of a kind of applicable AGV and air navigation aid | |
| CN109477733A (en) | Motor drive control device, electric power steering apparatus and vehicle | |
| CN204388874U (en) | Novel encoder structure | |
| CN201018440Y (en) | Angular position and rotary speed testing apparatus of switch reluctance motor rotor | |
| CN108828258A (en) | A kind of device and method improving fly-wheel motor rate accuracy | |
| CN103207039B (en) | Torque sensor using magnetic circuit | |
| CN101886932A (en) | Position detection device, signal processing device thereof and method | |
| CN201546034U (en) | Control circuit of sewing machine | |
| CN103424089A (en) | Motor rotor chute angle measuring device and measuring method | |
| CN202663268U (en) | Position detecting device for switch reluctance machine rotor | |
| CN209562325U (en) | Steering engine device | |
| CN204705338U (en) | Hoisting machinery robotization displacement detection system | |
| CN103954788B (en) | Locomotive photoelectric sensor displacement method of reseptance and signal pickup assembly | |
| CN107342712A (en) | Method for determining the position of a rotor of an electric machine | |
| CN201528253U (en) | Photoelectric speed measuring apparatus for printing motor | |
| CN201075009Y (en) | Position detector for switch reluctance motor | |
| CN202041173U (en) | Three-phase angular displacement sensor circuit | |
| CN207717110U (en) | Incremental optical electric axial angle encoder | |
| CN204044174U (en) | A kind of locomotive photoelectric sensor displacement receiving array device | |
| CN108088376B (en) | Grating scale, photoelectric encoder, distance measuring method and distance measuring device | |
| CN208707477U (en) | Brushless motor servo-driver | |
| CN102347722A (en) | Method for detecting initial magnetic field position of linear synchronous motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150610 Effective date of abandoning: 20170825 |