CN215177803U - Photoelectric encoder - Google Patents
Photoelectric encoder Download PDFInfo
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- CN215177803U CN215177803U CN202121231203.3U CN202121231203U CN215177803U CN 215177803 U CN215177803 U CN 215177803U CN 202121231203 U CN202121231203 U CN 202121231203U CN 215177803 U CN215177803 U CN 215177803U
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Abstract
The utility model provides a photoelectric encoder, which belongs to the technical field of photoelectric detection, and comprises an outer shell, wherein a fixed plate is fixed at the bottom of the inner wall of the circumference of the outer shell, a sensor assembly is arranged on the fixed plate through screw threads, a light-emitting assembly and a receiving element are arranged at the upper end of the sensor assembly, a first connecting shaft is rotatably connected with the right inner wall of the outer shell through a first bearing seat, a light grid plate is fixed at the left end of the first connecting shaft, a grating plate is arranged between the light-emitting assembly and the receiving element, three circles of light-transmitting holes are arranged on the grating plate, gaps among the three circles of light-transmitting holes are the same, the whole photoelectric encoder is reasonable in structure, ingenious in concept, flexible in use and various in functions, simultaneously improves the detection precision of the device, finds out and timely solves the problem of the abrasion in the device through data at the first time, and the arrangement of a longitudinal measuring mechanism can also lead the photoelectric encoder to carry out the measurement of the data longitudinally, the practicability is strong.
Description
Technical Field
The utility model belongs to the technical field of photoelectric detection, concretely relates to photoelectric encoder.
Background
The photoelectric encoder is a sensor which converts the mechanical geometric displacement on an output shaft into pulse or digital quantity by photoelectric conversion. The sensor is the most applied sensor at present, and the photoelectric encoder consists of a light source, a light code disc and a photosensitive element. The grating disk is formed by equally dividing a circular plate with a certain diameter into a plurality of rectangular holes. Because the photoelectric code disc is coaxial with the motor, when the motor rotates, the grating disc rotates at the same speed as the motor, a plurality of pulse signals are detected and output by a detection device composed of electronic elements such as light emitting diodes, and the current rotating speed of the motor can be reflected by calculating the number of pulses output by the photoelectric encoder per second.
However, in case of damage to the light-transmitting groove in the grating disc in the photoelectric encoder in the prior art, the accuracy of measured data is greatly reduced, and the problem cannot be found from the appearance of the photoelectric encoder.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a photoelectric encoder aims at solving the light trap in the grating disk among the prior art photoelectric encoder and in case takes place to damage, can lead to its measured data precision greatly reduced to from photoelectric encoder's the unable its problem of outward appearance discovery, current photoelectric encoder can only a direction measure after fixed simultaneously, the comparatively single scheduling problem of function.
In order to achieve the above object, the utility model provides a following technical scheme:
a photoelectric encoder comprises an outer shell, a fixed plate is fixed at the bottom of the inner wall of the circumference of the outer shell, a sensor assembly is installed on the fixed plate through threads, a light emitting assembly and a receiving element are arranged at the upper end of the sensor assembly, the right inner wall of the outer shell is rotatably connected with a first connecting shaft through a first bearing seat, a light grid plate is fixed at the left end of the first connecting shaft, the light grid plate is arranged between the light emitting assembly and the receiving element, three circles of light transmitting holes are formed in the light grid plate, gaps among the three circles of light transmitting holes are the same, the three circles of light transmitting holes are sequentially formed by a plurality of first light transmitting slit grooves, second light transmitting slit grooves and third light transmitting slit grooves from outside to inside, the first light transmitting slit grooves, the second light transmitting slit grooves and the third light transmitting slit grooves are equidistantly arranged on the light grid plate, three light emitting light sources which are equidistantly distributed are arranged on the light emitting assembly, the receiving element is provided with three light-emitting sources matched with the three light-emitting sources respectively, the three light-emitting sources and the photosensitive element are matched with the three rolls of light-transmitting holes, and the shell is internally provided with a longitudinal measuring mechanism.
Preferably, the longitudinal measuring mechanism comprises a main helical gear, the main helical gear is fixed on the first connecting shaft, the upper part of the circumferential surface of the outer shell is rotatably connected with a second connecting shaft through a second bearing seat, an auxiliary helical gear is fixed at the lower end of the second connecting shaft, and the auxiliary helical gear is meshed with the main helical gear.
Preferably, a circuit board is fixed on the inner wall of the circumference of the outer shell, the circuit board is electrically connected with the sensor assembly, and the left end of the circuit board is connected with a connecting wire.
Preferably, the left end of the outer shell is connected with a rear cover in a clamping mode, and the other end of the connecting line penetrates through the rear cover and extends outwards.
Preferably, the first and second connecting shafts have ends to which first and second hexagonal rods are fixed, respectively.
Preferably, a plurality of matched threaded holes are formed in the sensor assembly and the fixing plate.
Preferably, the bottom of the fixing plate is provided with a radian matched with the inner wall of the circumference of the outer shell, and the fixing plate is fixed with the inner wall of the outer shell through welding.
Preferably, a sealing strip is arranged between the rear cover and the outer shell.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the scheme, the whole photoelectric encoder has reasonable structure, ingenious conception, flexible use and various functions, simultaneously improves the detection precision of the device, can discover and timely solve the problem of abrasion in the device at the first time, can also longitudinally measure data by the photoelectric encoder due to the arrangement of the longitudinal measuring mechanism, has strong practicability, effectively solves the problems that the precision of measured data is greatly reduced once a light-transmitting groove in a grating disc in the photoelectric encoder in the prior art is damaged, the problem cannot be found from the appearance of the photoelectric encoder, simultaneously the existing photoelectric encoder can only measure in one direction after being fixed, has single function and the like, and when in use, the utility model is firstly connected with a rotating shaft of an external motor to be detected through a first hexagonal rod on a first connecting shaft in the device, the motor rotates and can drive whole first connecting shaft at the internal rotation of first bearing seat, let grating plate also can rotate simultaneously, grating plate's rotation detects a plurality of pulse signals of output through the detection device that three rings light trap cooperation light emitting component and receiving element on grating plate constitute, and the pulse signal that detects here is three groups, just can reflect current motor's rotational speed through calculating the number of photoelectric encoder output pulse per second, and go on to can discover very fast that the data in the photoelectric encoder is unusual through the data to three output pulse of group, with which position in this calculation device goes wrong, and in time make corresponding countermeasure, in time the loss stopping.
2. In the scheme, a longitudinal measuring mechanism is connected with an external motor to be measured through a second hexagonal rod on a second connecting shaft, then the second connecting shaft is driven to rotate on an outer shell through a second bearing seat, the rotation of the second connecting shaft can drive an auxiliary helical gear fixed at the lower end of the second connecting shaft to rotate, so that a meshed main helical gear rotates, the main helical gear is fixed on the first connecting shaft to drive the rotation of the whole first connecting shaft to realize measurement, a circuit board is arranged in the outer shell to facilitate the connection of the device, and the measured data is transmitted out through the connecting wire, a rear cover is clamped at the left side of the outer shell to facilitate the replacement of parts in the device, the arrangement of the first hexagonal rod and the second hexagonal rod can improve the friction force of the connecting part of the device and the motor and prevent slipping, and a plurality of matched threaded holes are formed in a sensor assembly and a fixing plate to facilitate the installation, fixation and disassembly of the whole sensor assembly, the bottom of the fixing plate is provided with a radian matched with the inner wall of the circumference of the outer shell, the fixing plate and the inner wall of the outer shell are fixed by welding, so that the whole sensor assembly, the light-emitting assembly and the receiving element which are fixed on the sensor assembly and the first light-transmitting slit groove can be indirectly perpendicular to each other, the measurement precision is further improved, the sealing effect of the device can be improved by arranging the sealing strip between the rear cover and the outer shell, and the service life of the device is further prolonged.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a right side view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 according to the present invention
Fig. 5 is a partial perspective view of the present invention.
In the figure: 1. an outer housing; 2. a fixing plate; 3. a sensor assembly; 4. a light emitting assembly; 5. a receiving element; 6. a first bearing housing; 7. a first connecting shaft; 8. a grating plate; 9. a first light-transmitting slit groove; 10. a second light-transmitting slit groove; 11. a third light-transmitting slit groove; 12. a circuit board; 13. a connecting wire; 14. a rear cover; 15. a main helical gear; 16. a secondary helical gear; 17. a second bearing housing; 18. a second connecting shaft; 19. a first hexagonal rod; 20. a second hexagonal bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-5, the present invention provides the following technical solutions: a photoelectric encoder comprises an outer shell 1, a fixed plate 2 is fixed at the bottom of the circumferential inner wall of the outer shell 1, a sensor component 3 is installed on the fixed plate 2 through threads, a light-emitting component 4 and a receiving element 5 are arranged at the upper end of the sensor component 3, a first connecting shaft 7 is rotatably connected to the right inner wall of the outer shell 1 through a first bearing seat 6, a light grating plate 8 is fixed at the left end of the first connecting shaft 7, the light grating plate 8 is arranged between the light-emitting component 4 and the receiving element 5, three circles of light transmitting holes are formed in the light grating plate 8, gaps among the three circles of light transmitting holes are the same, the three circles of light transmitting holes are sequentially formed by a plurality of first light transmitting slit grooves 9, a plurality of second light transmitting slit grooves 10 and a plurality of third light transmitting slit grooves 11 from inside to outside, the plurality of first light transmitting slit grooves 9, the second light transmitting slit grooves 10 and the third light transmitting slit grooves 11 are equidistantly opened on the light grating plate 8, three light-emitting light sources which are equidistantly distributed are arranged on the light-emitting component 4, the receiving element 5 is provided with three light sources which are respectively matched with the three light sources, the three light sources and the photosensitive element are matched with the three rolls of light holes, and the outer shell 1 is internally provided with a longitudinal measuring mechanism.
In the concrete embodiment of the utility model, the whole photoelectric encoder has reasonable structure, ingenious conception, flexible use and various functions, simultaneously improves the detection precision of the device, can discover and solve the problem in time by data in the first time when the device is worn, can also lead the photoelectric encoder to measure data longitudinally by the arrangement of the longitudinal measuring mechanism, has strong practicability, effectively solves the problems that the precision of the measured data is greatly reduced once the light-transmitting groove in the grating disc in the photoelectric encoder in the prior art is damaged, the problem can not be discovered from the appearance of the photoelectric encoder, and the prior photoelectric encoder can only measure in one direction after being fixed, has single function and the like, when in use, is firstly connected with the rotating shaft of the external motor to be measured through the first hexagonal rod 19 on the first connecting shaft 7 in the device, the motor rotates and can drive whole first connecting shaft 7 and rotate in first bearing 6, let grating board 8 also can rotate simultaneously, grating board 8 rotates and detects a plurality of pulse signals of output through the detection device that three rings of light trap cooperation light emitting component 4 and receiving element 5 on grating board 8 constitute, and the pulse signal that detects here is three groups, just can reflect the rotational speed of current motor through calculating the number of photoelectric encoder output pulse per second, and whether unusual to data that can discover in the photoelectric encoder very fast through going on to the data of three output pulse groups, with which position emergence problem in this calculation device, and in time make corresponding countermeasure, in time the loss stopping.
Specifically, the longitudinal measuring mechanism comprises a main helical gear 15, the main helical gear 15 is fixed on the first connecting shaft 7, the upper part of the circumferential surface of the outer shell 1 is rotatably connected with a second connecting shaft 18 through a second bearing seat 17, a secondary helical gear 16 is fixed at the lower end of the second connecting shaft 18, and the secondary helical gear 16 is meshed with the main helical gear 15.
In this embodiment: the longitudinal measuring mechanism is connected with an external motor to be measured through a second hexagonal rod 20 on a second connecting shaft 18, then the second connecting shaft 18 is driven to rotate on the outer shell 1 through a second bearing seat 17, the rotation of the second connecting shaft 18 can drive an auxiliary bevel gear 16 fixed at the lower end of the second connecting shaft 18 to rotate, the rotation of a main bevel gear 15 which is meshed with the main bevel gear 15 is achieved, and the main bevel gear 15 is fixed on the first connecting shaft 7 to drive the whole first connecting shaft 7 to rotate, so that the measurement is achieved.
Specifically, a circuit board 12 is fixed on the inner circumferential wall of the outer casing 1, the circuit board 12 is electrically connected with the sensor assembly 3, and the left end of the circuit board 12 is connected with a connecting wire 13.
In this embodiment: the circuit board 12 is arranged in the outer housing 1 to facilitate the connection of the device and to transmit measurement data via the connection line 13.
Specifically, the left end of the outer case 1 is clamped with a rear cover 14, and the other end of the connection wire 13 penetrates through the rear cover 14 and extends outward.
In this embodiment: the rear cover 14 is clamped at the left side of the outer shell 1, so that the replacement of parts in the device can be facilitated.
Specifically, the first connecting shaft 7 and the second connecting shaft 18 have ends to which a first hexagonal rod 19 and a second hexagonal rod 20 are fixed, respectively.
In this embodiment: the arrangement of the first and second hexagonal rods 19 and 20 increases the friction at the connection part of the device and the motor, thereby preventing slipping.
Specifically, a plurality of matched threaded holes are formed in the sensor assembly 3 and the fixing plate 2.
In this embodiment: all set up a plurality of assorted screw holes on sensor module 3 and the fixed plate 2 and can be convenient for whole sensor module 3's installation fixed with the dismantlement.
Specifically, the bottom of fixed plate 2 is provided with the circumference inner wall assorted radian with shell body 1, and fixed plate 2 passes through welded fastening with the inner wall of shell body 1.
In this embodiment: the bottom of the fixing plate 2 is provided with a radian matched with the circumferential inner wall of the outer shell 1, and the fixing plate 2 and the inner wall of the outer shell 1 are fixed by welding, so that the whole sensor assembly 3, the light-emitting assembly 4 and the receiving element 5 which are fixed on the sensor assembly 3 can be indirectly kept perpendicular to the first light-transmitting slit groove 9, and the measurement precision is further improved.
Specifically, a sealing strip is provided between the rear cover 14 and the outer casing 1.
In this embodiment: the sealing strip is arranged between the rear cover 14 and the outer shell 1, so that the sealing effect of the device can be improved, and the service life of the device can be prolonged.
The utility model discloses a theory of operation and use flow: when the utility model is used, firstly, the first hexagonal rod 19 on the first connecting shaft 7 in the device is connected with the rotating shaft of the external motor to be tested, the motor rotates to drive the whole first connecting shaft 7 to rotate in the first bearing seat 6, so that the grating board 8 can also rotate at the same time, the rotation of the grating board 8 detects and outputs a plurality of pulse signals through the detecting device consisting of three circles of light holes on the grating board 8 matched with the light-emitting component 4 and the receiving element 5, and the pulse signals detected at the position are three groups, the rotating speed of the current motor can be reflected by calculating the number of the output pulses of the photoelectric encoder per second, and whether the data in the photoelectric encoder is abnormal can be found quickly through the data of the three groups of output pulses, which position in the calculating device has problems, and corresponding countermeasures can be made in time, and the damage can be stopped in time, the longitudinal measuring mechanism is connected with the external motor to be tested through the second hexagonal rod 20 on the second connecting shaft 18, then, a second connecting shaft 18 is driven to rotate on the outer shell 1 through a second bearing seat 17, the rotation of the second connecting shaft 18 can drive a secondary bevel gear 16 fixed at the lower end of the second connecting shaft 18 to rotate, so that a meshed main bevel gear 15 rotates, the main bevel gear 15 is fixed on the first connecting shaft 7 to drive the rotation of the whole first connecting shaft 7 to realize measurement, a circuit board 12 is arranged in the outer shell 1 to facilitate the connection of the device and the measurement, the measurement data is transmitted out through a connecting wire 13, a rear cover 14 is clamped at the left side of the outer shell 1 to facilitate the replacement of parts in the device, the arrangement of a first hexagonal rod 19 and a second hexagonal rod 20 enables the connecting part of the device and a motor to improve the friction force and prevent slipping, a plurality of matched threaded holes are formed in the sensor component 3 and the fixing plate 2 to facilitate the installation, fixation and disassembly of the whole sensor component 3, the bottom of the fixed plate 2 is provided with a radian matched with the circumferential inner wall of the outer shell 1, the fixed plate 2 and the inner wall of the outer shell 1 are fixed by welding, so that the whole sensor component 3, the light-emitting component 4 and the receiving element 5 which are fixed on the sensor component 3 can be kept perpendicular to the first light-transmitting slit groove 9, the measurement precision is further improved, the sealing strip is arranged between the rear cover 14 and the outer shell 1, the sealing effect of the device can be improved, the service life of the device is prolonged, the whole photoelectric encoder is reasonable in structure arrangement, ingenious in concept, flexible in use and various in functions, the detection precision of the device is improved, the worn in the device can be found and timely solved through data at the first time, the arrangement of the longitudinal measuring mechanism can also lead the photoelectric encoder to longitudinally measure the data, and the practicability is strong, effectively solve the light trap in the grating disk among the photoelectric encoder of prior art in case take place to damage, can lead to its measured data precision greatly reduced to can't discover its problem from photoelectric encoder's outward appearance, current photoelectric encoder can only a direction measure after fixed simultaneously, the comparatively single scheduling problem of function.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An optical-electrical encoder, characterized by: comprises a shell body (1), a fixed plate (2) is fixed at the bottom of the inner wall of the circumference of the shell body (1), a sensor component (3) is installed on the fixed plate (2) through threads, a light-emitting component (4) and a receiving element (5) are arranged at the upper end of the sensor component (3), the right inner wall of the shell body (1) is rotatably connected with a first connecting shaft (7) through a first bearing seat (6), a light grid plate (8) is fixed at the left end of the first connecting shaft (7), the light grid plate (8) is arranged between the light-emitting component (4) and the receiving element (5), three circles of light holes are formed in the light grid plate (8), gaps among the three circles of light holes are the same, and the three circles of light holes are sequentially formed by a plurality of first light-transmitting slit grooves (9), a second light-transmitting slit groove (10) and a third light-transmitting slit groove (11) from outside to inside, it is a plurality of first printing opacity slot (9), second printing opacity slot (10) and third printing opacity slot (11) equidistance are seted up on grating board (8), be provided with the luminescent light source that three equidistance distributes on light-emitting component (4), be provided with three respectively with three luminescent light source assorted luminescent light source on receiving element (5), it is three luminescent light source send out and photosensitive element all with three book light trap phase-matchings, be provided with vertical measuring mechanism in shell body (1).
2. The optical encoder according to claim 1, characterized in that: the longitudinal measuring mechanism comprises a main helical gear (15), the main helical gear (15) is fixed on the first connecting shaft (7), the upper part of the circumferential surface of the outer shell (1) is rotatably connected with a second connecting shaft (18) through a second bearing seat (17), an auxiliary helical gear (16) is fixed at the lower end of the second connecting shaft (18), and the auxiliary helical gear (16) is meshed with the main helical gear (15).
3. The optical-electrical encoder according to claim 2, wherein: the sensor is characterized in that a circuit board (12) is fixed on the inner wall of the circumference of the outer shell (1), the circuit board (12) is electrically connected with the sensor component (3), and the left end of the circuit board (12) is connected with a connecting wire (13).
4. The optical encoder according to claim 3, characterized in that: the left end of the outer shell (1) is connected with a rear cover (14) in a clamping mode, and the other end of the connecting wire (13) penetrates through the rear cover (14) and extends outwards.
5. The optical encoder according to claim 4, characterized in that: and a first hexagonal rod (19) and a second hexagonal rod (20) are respectively fixed at the tail ends of the first connecting shaft (7) and the second connecting shaft (18).
6. The optical encoder according to claim 5, characterized in that: a plurality of matched threaded holes are formed in the sensor assembly (3) and the fixing plate (2).
7. The optical encoder according to claim 6, characterized in that: the bottom of fixed plate (2) is provided with the circumference inner wall assorted radian with shell body (1), and fixed plate (2) passes through welded fastening with the inner wall of shell body (1).
8. The optical encoder according to claim 7, wherein: and a sealing strip is arranged between the rear cover (14) and the outer shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121231203.3U CN215177803U (en) | 2021-06-03 | 2021-06-03 | Photoelectric encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121231203.3U CN215177803U (en) | 2021-06-03 | 2021-06-03 | Photoelectric encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215177803U true CN215177803U (en) | 2021-12-14 |
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ID=79378014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121231203.3U Expired - Fee Related CN215177803U (en) | 2021-06-03 | 2021-06-03 | Photoelectric encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215177803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623849A (en) * | 2022-03-10 | 2022-06-14 | 朝阳市加华电子有限公司 | Novel photoelectric encoder modularization code wheel |
| CN114777819A (en) * | 2022-04-22 | 2022-07-22 | 西安邮电大学 | Data compression method and device based on self-encoder |
-
2021
- 2021-06-03 CN CN202121231203.3U patent/CN215177803U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623849A (en) * | 2022-03-10 | 2022-06-14 | 朝阳市加华电子有限公司 | Novel photoelectric encoder modularization code wheel |
| CN114623849B (en) * | 2022-03-10 | 2023-09-15 | 朝阳市加华电子有限公司 | Photoelectric encoder modularization code wheel |
| CN114777819A (en) * | 2022-04-22 | 2022-07-22 | 西安邮电大学 | Data compression method and device based on self-encoder |
| CN114777819B (en) * | 2022-04-22 | 2023-06-30 | 西安邮电大学 | Data compression method and device based on self-encoder |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |