CN211178523U - Light-blocking coded disc measuring device - Google Patents
Light-blocking coded disc measuring device Download PDFInfo
- Publication number
- CN211178523U CN211178523U CN201922493921.7U CN201922493921U CN211178523U CN 211178523 U CN211178523 U CN 211178523U CN 201922493921 U CN201922493921 U CN 201922493921U CN 211178523 U CN211178523 U CN 211178523U
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- light
- blocking
- measuring device
- code wheel
- motor
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- 230000004888 barrier function Effects 0.000 claims abstract description 17
- 230000000903 blocking effect Effects 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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Abstract
The utility model relates to a light-blocking coded disc measuring device, the light-blocking coded disc measuring device comprises a motor, a coded disc and an acquisition device, the coded disc comprises a body and a light-blocking plate, a signal slot is arranged on the body, the light-blocking plate is arranged around the signal slot, and the body is connected with an output shaft of the motor; the collecting device is a photoelectric sensor or a scanner and is arranged at the edge of the body, a light-emitting mechanism is arranged on one side of the collecting device, a receiving mechanism is arranged on the opposite side of the collecting device, and the body is positioned between the light-emitting mechanism and the receiving mechanism; when the motor drives the body to rotate, the signal slot passes through the space between the light-emitting mechanism and the receiving mechanism, and the external relation is blocked by the light barrier, so that the acquisition accuracy of the acquisition device is improved.
Description
Technical Field
The utility model relates to a code wheel data measurement field especially relates to a code wheel measuring device that is in light.
Background
Code wheel refers to a digital encoder that measures angular displacement, by a sensor that converts mechanical geometric displacement on an output shaft into a pulsed digital quantity. The coded disc is formed by opening a plurality of holes on a circular plate with a certain diameter, the coded disc is driven by an output shaft of the motor to synchronously rotate, a plurality of pulse signals are output by a detection device composed of electronic elements such as light emitting diodes, and the rotating speed of the motor or the rotating speed of the motor can be obtained by coding or decoding the pulse signals. However, the conventional code wheel is sensitive to strong light, so that the measurement accuracy is not high, namely, the external light affects the measurement accuracy of the code wheel.
SUMMERY OF THE UTILITY MODEL
For overcoming the problem that the code wheel is sensitive to the highlight, the utility model provides a code wheel measuring device that is in light.
The technical scheme of the utility model for solving the technical problem is to provide a light-blocking coded disc measuring device, the light-blocking coded disc measuring device comprises a motor, a coded disc and an acquisition device, the coded disc comprises a body and a light-blocking plate, the body is provided with a signal slot, the light-blocking plate is arranged around the signal slot, and the body is connected with an output shaft of the motor; the collecting device is a photoelectric sensor or a scanner and is arranged at the edge of the body, a light-emitting mechanism is arranged on one side of the collecting device, a receiving mechanism is arranged on the opposite side of the collecting device, and the body is positioned between the light-emitting mechanism and the receiving mechanism; when the motor drives the body to rotate, the signal slot passes through the space between the light-emitting mechanism and the receiving mechanism.
Compared with the prior art, the utility model provides a code wheel measuring device that is in light has following advantage:
through setting up but the worn-out fur, can block that outside light passes through the signal fluting from the slotted side of signal and enters into receiving mechanism to disturb the light source that light-emitting structure sent, make the data that collection system gathered more accurate.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Drawings
Fig. 1 is a schematic perspective view of a light-blocking code disc measuring device according to a first embodiment of the present invention;
FIG. 2 is a schematic perspective view of the code wheel of FIG. 1;
FIG. 3 is a schematic perspective view of the body of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic view of the light shielding plate of FIG. 1;
description of reference numerals: 10. a light-blocking code disc measuring device; 20. a motor; 30. code disc; 40. a collection device; 31. a body; 301. a central bore; 303. signal slotting; 305. a light barrier; 307. a light-blocking groove; 3071. rotating the hole; 3051. and rotating the shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, the present invention provides a light-blocking code wheel measuring device 10, which includes a motor 20, a code wheel 30 and a collecting device 40, wherein the code wheel 30 is connected to an output shaft of the motor 20 and can rotate together with the output shaft of the motor 20. The pickup device 40 is provided at the edge of the code wheel 30 to pick up the angular displacement of the code wheel 30.
Specifically, the code wheel 30 includes a body 31, the body 31 is provided with a central hole 301 and a signal slot 303, the central hole 301 is in interference fit with an output shaft of the motor 20, so as to connect the code wheel 30 and the motor 20. The signal slots 303 are equally spaced around the central hole 301 and are disposed on the body 31 and extend through the body 31. The collecting device 40 is arranged on the periphery of the body 31, and when the coded disc 30 rotates along with the output shaft of the motor, the angular displacement of the coded disc 30 is obtained through the signal slot 303 of the collecting device 40.
It should be noted that the collecting device 40 is a photoelectric sensor or a scanner, one side of which is provided with a light emitting mechanism, and the other side is provided with a receiving structure, when the body 31 rotates along with the motor 20, the signal slot 303 on the body 31 is located between the light emitting mechanism and the receiving structure of the collecting device, and the light emitting mechanism emits light source into the receiving mechanism through the signal slot 303. When the body 31 rotates along with the output shaft of the motor 20, every time the signal slot 303 passes through the collecting device 40, the light emitted by the light-emitting mechanism can enter the receiving structure through the signal slot 303, and the light emitted by the light-emitting mechanism is received by the receiving structure in a pulse form, so as to obtain the angular displacement of the code wheel 30.
It will be appreciated that the light emitting means may be a light emitting diode and the receiving means may be a light dependent resistor.
It should be understood that the signal slots 303 may not be equally divided on the body 31, as long as the angular displacement of the code wheel can be obtained through conversion according to the light source emitted by the light-emitting mechanism passing through the signal slots 303 and received by the receiving mechanism.
Referring to fig. 2-5, the code wheel 30 further includes a light barrier 305, where the light barrier 305 is located around the signal slot 303 to surround the signal slot 303, so as to prevent external light from passing through the signal slot 303 from the periphery of the signal slot 303, thereby interfering with the acquisition device 40 and affecting the acquisition accuracy.
Further, the body 31 is further provided with a light blocking groove 307, the light blocking groove 307 is located around the signal slot 303, and the light blocking plate 305 is located in the light blocking groove 307 and is rotatably connected with the body 31. When the angular displacement of the code wheel 30 needs to be acquired, the light barrier 305 is turned up from the light barrier groove 307 to surround the periphery of the signal slot 303, so that the influence on the accuracy of acquisition by the acquisition device 40 caused by the fact that external light enters the receiving structure of the acquisition device 40 from the periphery of the signal slot 303 through the signal slot 303 is avoided. When the angular displacement of the code wheel 30 does not need to be captured, the light barrier 305 is flipped into the light barrier groove 307, so that the light barrier 305 is received in the light barrier groove 307, and the light barrier 305 is prevented from being damaged.
Furthermore, a rotating hole 3071 is formed in the side wall of the light blocking groove 307, a rotating shaft 3051 is arranged on the light blocking plate 305, and the rotating shaft 3051 is in clearance fit with the rotating hole 3071, so that the rotating shaft 3051 can rotate in the rotating hole 3071, and the light blocking plate is rotatably connected with the body 31.
Furthermore, a reflective mirror (not shown) is disposed on a side of the light barrier 305 close to the signal slot 303, and due to the scattering property of the light source, when the light source emitted by the light emitting mechanism of the collecting device 40 passes through the signal slot 303, the reflective mirrors on the light barrier 305 surrounding the signal slot 303 can focus the direction of the light source to the direction of the signal slot 303, so as to increase the intensity of the receiving structure receiving the light source, and further increase the accuracy of the collecting device 40.
Further, when the light-blocking panel 305 is received in the light-blocking groove 307, the light-blocking panel 305 is flush with the body 31.
In the present embodiment, when the light-blocking code wheel measuring device 10 is used to measure the mechanical geometric displacement, the light-blocking plate 305 is turned up from the light-blocking slot 307 so that it is not around the signal slot 303, and the reflective mirror is located at a side close to the signal slot 303. The motor 20 drives the code wheel 30 to rotate, and when the signal slot 303 of the code wheel 30 passes between the light-emitting mechanism and the receiving mechanism of the acquisition device 40, the light source of the light-emitting mechanism enters the receiving mechanism through the signal slot 303. That is, the light source signal received by the receiving device is in the form of pulse, and the angular displacement of the code wheel 30 can be obtained by converting the light source signal in the form of pulse, so that the parameters of mechanical geometric displacement such as the speed and the direction of the motor rotation can be measured.
Compared with the prior art, the utility model provides a code wheel measuring device that is in light has following advantage:
through setting up but the worn-out fur, can block that outside light passes through the signal fluting from the slotted side of signal and enters into receiving mechanism to disturb the light source that light-emitting structure sent, make the data that collection system gathered more accurate.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a code wheel measuring device that is in light which characterized in that:
the light-blocking coded disc measuring device comprises a motor, a coded disc and an acquisition device, wherein the coded disc comprises a body and a light-blocking plate, the body is provided with a signal slot, the light-blocking plate is arranged around the signal slot, and the body is connected with an output shaft of the motor;
the collecting device is a photoelectric sensor or a scanner and is arranged at the edge of the body, a light-emitting mechanism is arranged on one side of the collecting device, a receiving mechanism is arranged on the opposite side of the collecting device, and the body is positioned between the light-emitting mechanism and the receiving mechanism; when the motor drives the body to rotate, the signal slot passes through the space between the light-emitting mechanism and the receiving mechanism.
2. A light-blocking code wheel measuring device as claimed in claim 1, characterized in that:
the body is further provided with light blocking grooves, the light blocking grooves are located around the signal slots, the light blocking plates are located in the light blocking grooves, and the light blocking plates are rotatably connected with the body.
3. A light-blocking code wheel measuring device as claimed in claim 2, characterized in that:
the light blocking groove is characterized in that a rotating hole is formed in the side wall of the light blocking groove, a rotating shaft is arranged on the light blocking plate, and the rotating hole is in clearance fit with the rotating shaft so that the light blocking plate is rotatably connected with the body.
4. A light-blocking code wheel measuring device as claimed in claim 3, characterized in that:
when the light barrier is accommodated in the light blocking groove, the light barrier is flush with the body.
5. A light-blocking code wheel measuring device as claimed in claim 1, characterized in that:
and a reflector is arranged on the light barrier and is arranged on one surface of the light barrier close to the signal slot.
6. A light-blocking code wheel measuring device as claimed in claim 1, characterized in that:
the body is further provided with a center hole, and the center hole is in interference fit with an output shaft of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922493921.7U CN211178523U (en) | 2019-12-31 | 2019-12-31 | Light-blocking coded disc measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922493921.7U CN211178523U (en) | 2019-12-31 | 2019-12-31 | Light-blocking coded disc measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211178523U true CN211178523U (en) | 2020-08-04 |
Family
ID=71821850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922493921.7U Expired - Fee Related CN211178523U (en) | 2019-12-31 | 2019-12-31 | Light-blocking coded disc measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211178523U (en) |
-
2019
- 2019-12-31 CN CN201922493921.7U patent/CN211178523U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 |