CN204730851U - Be applied to the position detecting device of closed-loop system - Google Patents
Be applied to the position detecting device of closed-loop system Download PDFInfo
- Publication number
- CN204730851U CN204730851U CN201520519116.6U CN201520519116U CN204730851U CN 204730851 U CN204730851 U CN 204730851U CN 201520519116 U CN201520519116 U CN 201520519116U CN 204730851 U CN204730851 U CN 204730851U
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- Prior art keywords
- coded disc
- detecting device
- thread plate
- closed
- magnetic
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- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a kind of position detecting device being applied to closed-loop system, comprise the code thread plate be located on rear end cap and the magnetic coded disc be located on machine shaft, described magnetic coded disc is annular, described annular magnetic coded disc is circumferentially evenly provided with the sector shaped magnetic region that N pole and S pole distribute alternately, described sector shaped magnetic region is 50.The position detecting device of closed-loop system that what the utility model provided be applied to, adopts code thread plate and magnetic coded disc, and code thread plate is by identifying the direction in magnetic field on magnetic coded disc and strong and weak position and the speed identifying current motor, and position is accurate, precision is high.
Description
Technical field
The utility model relates to motor and drives technical field, particularly relates to a kind of position detecting device being applied to closed-loop system.
Background technology
Motor is the power unit that in industrial automation, electric operator carries out action.The operation precision of electric operator depends on the position detecting device of motor, and the function of the position detecting device of motor is to provide position signalling accurately.In traditional electric operator, adopt conductive plastic potentiometer, but it has contact, the life-span also can not be very long, and precision is not high yet more.Recently also have and use contactless multi-turn photoelectricity absolute value encoder, but because the power consumption of photoelectric scrambler is larger, usually the power consumption of hundreds of milliwatt is reached, therefore, after primary power power down, microprocessor cannot be allowed to read the change in location of electric operator in real time by powered battery.Simultaneously because the position detection of electric operator is its most important function, when position detection part goes wrong, electric operator needs to quit work, and this will have influence on the operation of whole process industry system, cannot meet the request for utilization of electric operator.
Utility model content
Technical problem to be solved in the utility model is: in order to overcome deficiency of the prior art, the utility model provides a kind of position detecting device being applied to closed-loop system, adopt code thread plate and magnetic coded disc, code thread plate is by identifying the direction in magnetic field on magnetic coded disc and strong and weak position and the speed identifying current motor, and position is accurate, precision is high.
The utility model solves the technical scheme that its technical matters will adopt: a kind of position detecting device being applied to closed-loop system, comprise the code thread plate be located on rear end cap and the magnetic coded disc be located on machine shaft, described magnetic coded disc is annular, described annular magnetic coded disc is circumferentially evenly provided with the sector shaped magnetic region that N pole and S pole distribute alternately, described sector shaped magnetic region is 50.Adopt code thread plate and magnetic coded disc, code thread plate is by identifying the direction in magnetic field on magnetic coded disc and strong and weak position and the speed identifying current motor, and position is accurate, precision is high.
Further, conveniently install, also comprise cushion block, described cushion block is located between described rear end cap and described code thread plate.
Further, in order to realize being connected with external signal, described code thread plate is also provided with connection terminal, described connection terminal is connected with described line of codes line circuit.
The beneficial effects of the utility model are: a kind of position detecting device being applied to closed-loop system that the utility model provides, adopt code thread plate and magnetic coded disc, code thread plate is by identifying the direction in magnetic field on magnetic coded disc and strong and weak position and the speed identifying current motor, and position is accurate, precision is high.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation that the utility model is applied to the position detecting device of closed-loop system.
Fig. 2 is the structural representation that the utility model is applied to the position detecting device of closed-loop system.
In figure: 1, rear end cap, 2, code thread plate, 3, machine shaft, 4, magnetic coded disc, 5, cushion block, 6, connection terminal.
Embodiment
By reference to the accompanying drawings the utility model is described in detail now.This figure is the schematic diagram simplified, and only basic structure of the present utility model is described in a schematic way, therefore it only shows the formation relevant with the utility model.
As shown in Figure 1-2, a kind of position detecting device being applied to closed-loop system of the present utility model, comprise the code thread plate 2 be located on rear end cap 1 and the magnetic coded disc 4 be located on machine shaft 3, described magnetic coded disc 4 is annular, described annular magnetic coded disc 4 is circumferentially evenly provided with the sector shaped magnetic region that N pole and S pole distribute alternately, described sector shaped magnetic region is 50.Magnetic coded disc 4, by magnetizing, is divided into the sector shaped magnetic region that the N pole of 50 deciles is extremely alternate with S, and code thread plate 2 is by identifying the direction in magnetic field on magnetic coded disc 4 and strong and weak position and the speed identifying current motor, and position is accurate, precision is high.According to the sector shaped magnetic region that the demand of realistic accuracy also can adopt more N pole and S pole to distribute alternately, be not limited to 50.
Further, conveniently install, also comprise cushion block 5, described pad/5 are located between described rear end cap 1 and described code thread plate 2.Employing cushion block 5 can avoid the interference between electric machine casing and code thread plate 2, simultaneously convenient installation.
Further, in order to realize being connected with external signal, described code thread plate 2 is also provided with connection terminal 6, described connection terminal 6 and described code thread plate 2 connection.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff not departing from scope of the present utility model, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on instructions, must determine its technical scope according to right.
Claims (3)
1. one kind is applied to the position detecting device of closed-loop system, it is characterized in that: comprise the code thread plate be located on rear end cap and the magnetic coded disc be located on machine shaft, described magnetic coded disc is annular, described annular magnetic coded disc is circumferentially evenly provided with the sector shaped magnetic region that N pole and S pole distribute alternately, described sector shaped magnetic region is 50.
2. be applied to the position detecting device of closed-loop system as claimed in claim 1, it is characterized in that: also comprise cushion block, described cushion block is located between described rear end cap and described code thread plate.
3. be applied to the position detecting device of closed-loop system as claimed in claim 1 or 2, it is characterized in that: described code thread plate is also provided with connection terminal, described connection terminal is connected with described line of codes line circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519116.6U CN204730851U (en) | 2015-07-16 | 2015-07-16 | Be applied to the position detecting device of closed-loop system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519116.6U CN204730851U (en) | 2015-07-16 | 2015-07-16 | Be applied to the position detecting device of closed-loop system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204730851U true CN204730851U (en) | 2015-10-28 |
Family
ID=54389193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520519116.6U Expired - Fee Related CN204730851U (en) | 2015-07-16 | 2015-07-16 | Be applied to the position detecting device of closed-loop system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204730851U (en) |
-
2015
- 2015-07-16 CN CN201520519116.6U patent/CN204730851U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 |