CN112097802A - Composite photoelectric code disc device - Google Patents
Composite photoelectric code disc device Download PDFInfo
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- CN112097802A CN112097802A CN202010779567.9A CN202010779567A CN112097802A CN 112097802 A CN112097802 A CN 112097802A CN 202010779567 A CN202010779567 A CN 202010779567A CN 112097802 A CN112097802 A CN 112097802A
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- 239000002131 composite material Substances 0.000 title claims abstract description 60
- 230000003287 optical effect Effects 0.000 claims abstract description 174
- 230000008093 supporting effect Effects 0.000 claims description 39
- 238000005192 partition Methods 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 12
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/264—Mechanical constructional elements therefor ; Mechanical adjustment thereof
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Abstract
The invention provides a composite photoelectric code disc device, relating to the technical field of photoelectric code disc devices. The composite coded disc can enable the optical dial and the optical coded disc to coaxially rotate, the technical effect of one disc with multiple purposes is achieved, and optical signal output is completed through the matching of 360 line-carving areas of the outer ring of the composite coded disc, the optical microscope system and the eyepiece group; the 720-strip scribing areas and the indicating grating generate relative movement through the composite type coded disc inner ring to generate moire fringes, and the moire fringes are received by the photoelectric converter and output as sine and cosine electric signals with the phase difference of 90 degrees; the coaxial output of photoelectric signals is realized, so that coupling errors are avoided, and the stability of output signals is ensured.
Description
Technical Field
The invention relates to the technical field of photoelectric coded disc devices, in particular to a composite photoelectric coded disc device.
Background
At present, in the related technology, the reading of domestic optical systems is composed of a dial and a display optical microscope system and an eyepiece group, and the electrical system acquires rotation signals generally by adopting an encoder. An optical scale signal and an encoder exist separately in an original system of the equipment, and the optical signal and an electrical appliance signal are output respectively; the problems of large connection error between the dial rotating shaft and the encoder rotating shaft, unstable output signals, high cost, large volume, difficult installation and debugging and the like are caused. Moreover, the optical scale itself has the phenomena of mildewing and fogging, the storage environment requirement of the equipment is high, and the storage is not good, thereby influencing the use problem. Therefore, a composite type photoelectric code disc device is needed to solve the above problems.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, the invention provides a composite photoelectric code disc device.
In view of the above, the present invention provides a composite photoelectric encoder device, the composite photoelectric encoder device is fixed on a base, the composite photoelectric encoder device is connected to a position-limiting system and a photoelectric converter, and the composite photoelectric encoder device includes: the device comprises a support shaft, a shell, a central shaft, an optical dial, an outer ring reticle, an optical coded disc, an inner ring reticle, a middle partition plate, a light emitting tube, an indicating grating cylinder and an indicating grating; one end of the supporting shaft close to the base is connected with the base; the shell is positioned above the supporting shaft and is connected with one end of the supporting shaft, which is far away from the base; the central shaft is sleeved outside the supporting shaft, and the central shaft is rotatably connected with the supporting shaft; the optical dial is in a ring shape and is connected with the central shaft; the outer ring reticle is arranged on one side surface of the optical scale, which is far away from the base, along the circumferential direction of the optical scale; the optical code disc is in a ring shape and is positioned above the optical dial, one side surface of the optical code disc close to the base is connected with one side surface of the optical dial far away from the base, and the axis of the optical code disc is superposed with the axis of the optical dial; the inner ring groove is arranged on one side surface of the optical code disc close to the base along the circumferential direction of the optical code disc; the middle partition plate is positioned below the optical scale, is sleeved outside the central shaft and is connected with the shell; the light emitting tube is positioned below the optical scale and is connected with the middle partition plate; the indicating grating cylinder is a hollow cavity with openings at two ends, is positioned above the optical dial and is connected with the shell; the indication grating is embedded into one opening end of the indication grating cylinder close to the base, and the side wall of the indication grating is connected with the inner wall of the indication grating cylinder.
In the technical scheme, firstly, one end of the supporting shaft close to the base is connected with the base to realize the fixing effect of the base on the supporting shaft, so that the supporting shaft and the base are prevented from rotating relatively; secondly, the shell is positioned above the supporting shaft and is connected with one end, far away from the base, of the supporting shaft so as to fix and support the shell, and therefore the shell is fixed on the supporting shaft and is ensured to not rotate relative to the supporting shaft; thirdly, the central shaft is sleeved on the outer side of the supporting shaft and is rotatably connected with the supporting shaft, so that the central shaft and the supporting shaft rotate relatively; thirdly, the optical dial is in a circular ring shape and is connected with the central shaft, so that the central shaft drives the optical dial to rotate; thirdly, the optical code disc is in a ring shape and is positioned above the optical dial, one side surface of the optical code disc close to the base is connected with one side surface of the optical dial far away from the base, and the axis of the optical code disc is superposed with the axis of the optical dial, so that the optical code disc and the optical dial rotate coaxially, and the optical code disc and the optical dial rotate synchronously to form a composite code disc; thirdly, the outer ring scribed line is arranged on one side surface of the optical disc far away from the base along the circumferential direction of the optical disc, and the inner ring scribed line is arranged on one side surface of the optical disc close to the base along the circumferential direction of the optical disc, so that the outer ring scribed line and the inner ring scribed line are clamped in front of the optical disc and the optical disc to achieve the protection effect on the outer ring scribed line and the inner ring scribed line, and the problem that the scribed lines are abraded to cause inaccurate degree is avoided; thirdly, the intermediate partition plate is positioned below the optical dial, the intermediate partition plate is sleeved on the outer side of the central shaft, and the intermediate partition plate is connected with the shell so as to prevent the intermediate partition plate and the shell from rotating relatively; thirdly, the light-emitting tube is positioned below the optical scale and is connected with the middle partition plate so as to be fixed below the optical scale, and the optical scale is illuminated to form an optical signal; thirdly, the indicating grating cylinder is a hollow cavity with openings at two ends, the indicating grating cylinder is positioned above the optical dial and is connected with the shell, so that the technical effect of fixing the indicating grating cylinder on the shell is realized, and the stability of the indicating grating cylinder is improved; and thirdly, embedding the indicating grating into one opening end of the indicating grating cylinder close to the base, wherein the side wall of the indicating grating is connected with the inner wall of the indicating grating cylinder so as to fix the indicating grating, and forming a moire fringe signal with the indicating grating when the optical code disc rotates. The optical disc and the optical code disc are glued by the product by using the special optical processing technology to form the composite code disc, so that the outer ring reticle and the inner ring reticle are positioned on the inner side of the composite code disc and are not exposed outside, the reticles are protected, the storage environment requirements of the optical disc and the optical code disc are reduced, the phenomena of mildew and fog of the optical disc and the optical code disc are reduced, and the service life of the optical disc and the optical code disc is prolonged. Moreover, the optical dial and the optical coded disc can coaxially rotate by adopting the composite coded disc, the technical effect of multiple purposes of one disc is realized, and the optical signal output is completed by matching 360 line-carving areas of the outer ring of the composite coded disc with the optical microscope system and the eyepiece group; the 720-strip line scribing areas in the composite coded disc and the indicating grating move relatively to generate moire fringes, the moire fringes are received by the photoelectric converter, and the moire fringes are output as sine and cosine electric signals with the phase difference of 90 degrees; therefore, coaxial output of photoelectric signals is realized, coupling errors are avoided, and stability of output signals is ensured; moreover, the photoelectric signals are integrated and output simultaneously, so that the signal stability can be improved, and the installation and debugging are convenient, the weight is reduced, and the cost is reduced.
Specifically, the photoelectric converter is fixed on the shell above the optical code disc, and comprises a light-emitting plate and a photoelectric receiving plate, wherein the photoelectric receiving plate is used for receiving moire fringes generated by relative displacement of the inner ring groove and the indicating grating.
In addition, the composite photoelectric coded disc device in the technical scheme provided by the invention can also have the following additional technical characteristics:
in the above technical solution, preferably, the composite photoelectric encoder apparatus further includes: worm gears, worms, and hand wheels; the side wall of the worm wheel is provided with first spiral teeth, the worm wheel is sleeved outside the central shaft, and the worm wheel is connected with the central shaft; the side wall of the worm is provided with second spiral teeth, the worm penetrates through the base, and the second spiral teeth of the worm are meshed with the first spiral teeth of the worm wheel; the hand wheel is sleeved outside the worm and is connected with the worm.
In the technical scheme, the side wall of the worm wheel is provided with the first spiral teeth, the worm wheel is sleeved on the outer side of the central shaft and is connected with the central shaft, the side wall of the worm is provided with the second spiral teeth, the worm penetrates through the base, the second spiral teeth of the worm are meshed with the first spiral teeth of the worm wheel, the hand wheel is sleeved on the outer side of the worm and is connected with the worm, the worm is rotated by rotating the hand wheel, the second spiral teeth are meshed with the first spiral teeth, the worm drives the worm wheel to rotate, the central shaft is driven to rotate, the composite coded disc fixed on the central shaft is driven to rotate, and therefore photoelectric signals are output simultaneously.
In the above technical solution, preferably, the composite photoelectric encoder apparatus further includes: a bearing; the bearing comprises an inner ring, a ball and an outer ring, the bearing sleeve is arranged on the outer side of the supporting shaft, the inner ring and the outer ring are attached to one end face, away from the base, of the central shaft, and the ball is attached to the supporting shaft.
In this technical scheme, through including inner circle, ball and outer lane at the bearing, the bearing housing is established in the outside of back shaft, and the base was kept away from to inner circle and outer lane and center pin terminal surface laminating mutually, and the ball laminates with the back shaft mutually to realize the limiting displacement to the center pin, and reduce the friction between center pin and the back shaft, thereby make the smooth rotation of center pin, reduce the wearing and tearing between back shaft and the center pin.
In the above technical solution, preferably, the central shaft further includes: the body, the connecting part and the pressing plate; the connecting part is sleeved on the outer side of the body, and one side surface of the optical dial close to the base is attached to the connecting part; the pressing plate is located above the optical code disc and connected with the connecting portion.
In the technical scheme, the connecting part is sleeved on the outer side of the body, and one side surface of the optical dial close to the base is attached to the connecting part, so that the supporting effect on the optical dial and the optical code disc is realized; the pressing plate is positioned above the optical coded disc and connected with the connecting part, so that the optical dial and the optical coded disc are fixed, namely, the stability of the composite coded disc is improved, the composite coded disc synchronously rotates along with the central shaft, and the accuracy of an output signal is ensured.
In the above technical solution, preferably, the composite photoelectric encoder apparatus further includes: a first bolt; the first bolt penetrates through the pressing plate and the connecting part in sequence.
In the technical scheme, the first bolt sequentially penetrates through the pressing plate and the connecting part to connect the pressing plate and the connecting part, so that the composite coded disc is pressed tightly, and the stability of the composite coded disc is improved.
In the above technical solution, preferably, the worm wheel further includes: the brake device comprises a worm wheel body, a brake wheel, a second bolt and a limiting hole; the brake wheel is positioned above the worm wheel body and is connected with the worm wheel body; after the second bolt penetrates through the worm wheel body, the second bolt is embedded into the contracting brake wheel; the limiting hole is formed in the contracting brake wheel.
In the technical scheme, the band-type brake wheel is positioned above the worm wheel body and is connected with the worm wheel body, so that the band-type brake and the worm wheel body synchronously rotate; after the second bolt penetrates through the worm wheel body, the second bolt is embedded into the contracting brake wheel, so that the connection stability of the worm wheel body and the contracting brake wheel is improved; through setting up spacing hole on the contracting brake wheel to it is fixed with the contracting brake wheel through making other connecting pieces pass spacing hole, thereby fixes the worm wheel, so that worm wheel stall realizes the technological effect of contracting brake.
In the above technical solution, preferably, the housing further includes: a housing body and a mounting portion; one surface of the shell body close to the base is attached to one end surface of the support shaft far away from the base; the installation part is annular, and the one end that the base was kept away from to the installation part is connected with the casing body.
In the technical scheme, one surface of the shell body close to the base is attached to one end surface of the support shaft far away from the base, so that the support shaft can support the shell body; the installation part is annular, one end of the installation part, which is far away from the base, is connected with the shell body, the intermediate partition plate is connected with the shell through the installation part, the intermediate partition plate and the shell do not rotate relatively, the technical effect of fixing the light emitting tube is achieved, the optical dial and the optical code disc above the light emitting tube are illuminated, and a moire fringe signal is formed by relative movement of the optical dial and the indicating grating.
In the above technical solution, preferably, the composite photoelectric encoder apparatus further includes: an observation port; the observation port is positioned above the optical code disc and penetrates through the shell body.
In the technical scheme, the observation port is positioned above the optical code disc and penetrates through the shell body, so that the microscope system can read an optical signal through the observation port, namely the rotating angle of the optical dial, and the reading is visual and accurate.
Specifically, the microscope system is fixed to the housing so as to read optical signal data through the observation port.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a cross-sectional view of a compound optical code wheel device according to one embodiment of the present invention;
FIG. 2 shows a cross-sectional view of a composite code wheel according to the present invention;
FIG. 3 shows a schematic structural diagram of a composite code wheel according to the present invention;
FIG. 4 shows a schematic diagram of the structure of an indicator grating according to the present invention;
fig. 5 shows a schematic circuit diagram of a light emitting panel of a photoelectric converter according to the present invention;
fig. 6 shows a schematic circuit diagram of a photoelectric receiving panel of a photoelectric converter according to the present invention;
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
the photoelectric converter comprises a base 10, a photoelectric converter 12, a limit system 14, a support shaft 16, a shell 18, a shell body 181, a mounting part 182, a central shaft 20, a body 201, a connecting part 202, a pressing plate 203, an optical dial 22, an outer ring reticle 24, an optical code disc 26, an inner ring reticle 28, a middle partition plate 30, a light emitting tube 32, an indicating grating cylinder 34, an indicating grating 36, a worm gear 38, a worm wheel body 381, a brake wheel 382, a second bolt 383, a limit hole 384, a worm 40, a hand wheel 42, a bearing 44, a first bolt 46 and a viewing port 48.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The composite type photoelectric encoder device according to some embodiments of the present invention will be described below with reference to fig. 1 to 6.
In an embodiment of the present invention, as shown in fig. 1 to 6, the present invention provides a composite type photoelectric encoder device, the composite type photoelectric encoder device is fixed on a base 10, the composite type photoelectric encoder device is connected with a limiting system 12 and a photoelectric converter 14, the composite type photoelectric encoder device includes: a support shaft 16, a shell 18, a central shaft 20, an optical dial 22, an outer ring groove 24, an optical code disc 26, an inner ring groove 28, a middle partition plate 30, a light-emitting tube 32, an indicating grating cylinder 34 and an indicating grating 36; one end of the supporting shaft 16 close to the base 10 is connected with the base 10; the shell 18 is positioned above the supporting shaft 16, and the shell 18 is connected with one end of the supporting shaft 16 far away from the base 10; the central shaft 20 is sleeved outside the support shaft 16, and the central shaft 20 is rotatably connected with the support shaft 16; the optical scale 22 is in a ring shape, and the optical scale 22 is connected with the central shaft 20; an outer circumferential reticle 24 is disposed on a side of the optical scale 22 away from the base 10 along a circumference of the optical scale 22; the optical code disc 26 is annular, the optical code disc 26 is positioned above the optical scale 22, one side surface of the optical code disc 26 close to the base 10 is connected with one side surface of the optical scale 22 far away from the base 10, and the axis of the optical code disc 26 is superposed with the axis of the optical scale 22; an inner ring scribed line 28 is arranged on one side surface of the optical code disc 26 close to the base 10 along the circumferential direction of the optical code disc 26; the middle partition plate 30 is positioned below the optical scale 22, the middle partition plate 30 is sleeved outside the central shaft 20, and the middle partition plate 30 is connected with the shell 18; light-emitting tube 32 is positioned below optical scale 22, and light-emitting tube 32 is connected to intermediate barrier 30; the indication grating cylinder 34 is a hollow cavity with openings at two ends, the indication grating cylinder 34 is positioned above the optical scale 22, and the indication grating cylinder 34 is connected with the shell 18; an indication grating 36 is embedded in one open end of the indication grating cylinder 34 near the base 10, and the side wall of the indication grating 36 is connected with the inner wall of the indication grating cylinder 34.
In this embodiment, first, the supporting shaft 16 is fixed by the base 10 by connecting one end of the supporting shaft 16 close to the base 10 with the base 10, so as to prevent the supporting shaft 16 and the base 10 from rotating relatively; secondly, the shell 18 is fixed on the supporting shaft 16 by positioning the shell 18 above the supporting shaft 16 and connecting the shell 18 with one end of the supporting shaft 16 far away from the base 10, so as to fix the shell 18 on the supporting shaft 16 and ensure that the shell 18 and the supporting shaft 16 do not rotate relatively; thirdly, the central shaft 20 is sleeved outside the support shaft 16, and the central shaft 20 is rotatably connected with the support shaft 16, so that the central shaft 20 and the support shaft 16 relatively rotate; thirdly, the optical scale 22 is made to be circular, and the optical scale 22 is connected with the central shaft 20, so that the central shaft 20 drives the optical scale 22 to rotate; thirdly, the optical code disc 26 is in a circular ring shape, the optical code disc 26 is positioned above the optical dial 22, one side surface of the optical code disc 26 close to the base 10 is connected with one side surface of the optical dial 22 far away from the base 10, and the axis of the optical code disc 26 is overlapped with the axis of the optical dial 22, so that the optical code disc 26 and the optical dial 22 rotate coaxially, and the optical code disc 26 and the optical dial 22 rotate synchronously to form a composite code disc; thirdly, by arranging the outer ring groove 24 on one side of the optical disc 22 far away from the base 10 along the circumferential direction of the optical disc 22 and arranging the inner ring groove 28 on one side of the optical disc 26 near the base 10 along the circumferential direction of the optical disc 26, the outer ring groove 24 and the inner ring groove 28 are clamped in front of the optical disc 22 and the optical disc 26 to achieve a protection effect on the outer ring groove 24 and the inner ring groove 28, so that the problem that the grooves are worn and inaccurate in degree is avoided; thirdly, the intermediate partition plate 30 is positioned below the optical scale 22, the intermediate partition plate 30 is sleeved outside the central shaft 20, and the intermediate partition plate 30 is connected with the shell 18, so that the intermediate partition plate 30 and the shell 18 are prevented from rotating relatively; thirdly, by positioning light-emitting tube 32 below optical scale 22 and connecting light-emitting tube 32 to intermediate barrier 30, light-emitting tube 32 is fixed below optical scale 22, and optical scale 22 is illuminated to form an optical signal; thirdly, the indication grating cylinder 34 is a hollow cavity with openings at two ends, the indication grating cylinder 34 is positioned above the optical dial 22, and the indication grating cylinder 34 is connected with the shell 18, so that the technical effect of fixing the indication grating cylinder 34 on the shell 18 is realized, and the stability of the indication grating cylinder 34 is improved; again, the indicator grating 36 is fixed by embedding the indicator grating 36 into one open end of the indicator grating cylinder 34 near the base 10, and the side wall of the indicator grating 36 is connected with the inner wall of the indicator grating cylinder 34, so that a moire signal is formed with the indicator grating 36 when the optical code disc 26 rotates. By adopting the connection mode, the structure is simple, the product uses the special optical processing technology to glue the optical disc 22 and the optical code disc 26 to form the composite code disc, so that the outer ring reticle 24 and the inner ring reticle 28 are positioned at the inner side of the composite code disc and are not exposed outside, the reticles are protected, the requirement on the storage environment of the optical disc 22 and the optical code disc 26 is lowered, the phenomena of mildew and fogging of the optical disc 22 and the optical code disc 26 are reduced, and the service life of the optical disc 22 and the optical code disc 26 is prolonged. Moreover, the optical dial 22 and the optical dial 26 can coaxially rotate by adopting the composite type dial, so that the technical effect of one multi-purpose dial is realized, and the optical signal output is completed by matching 360 line-carving areas of the outer ring of the composite type dial with the optical microscope system and the eyepiece group; the 720-strip line scribing areas in the composite coded disc and the indicating grating 36 move relatively to generate moire fringes, the moire fringes are received by the photoelectric converter 12, and the moire fringes are output as sine and cosine electric signals with the phase difference of 90 degrees; therefore, coaxial output of photoelectric signals is realized, coupling errors are avoided, and stability of output signals is ensured; moreover, the photoelectric signals are integrated and output simultaneously, so that the signal stability can be improved, and the installation and debugging are convenient, the weight is reduced, and the cost is reduced.
Specifically, the photoelectric converter 12 is fixed on the housing 18 above the optical code disc 26, and the photoelectric converter 12 includes a light emitting plate and an optical receiving plate for receiving moire fringes generated by relative displacement of the inner ring groove 28 and the indicator grating 36.
Specifically, schematic circuit diagrams of the light emitting panel and the light receiving panel are shown in fig. 5 and 6.
In one embodiment of the present invention, preferably, as shown in fig. 1, the composite type photoelectric encoder device further includes: worm gear 38, worm 40, and hand wheel 42; the side wall of the worm wheel 38 is provided with a first helical tooth, the worm wheel 38 is sleeved on the outer side of the central shaft 20, and the worm wheel 38 is connected with the central shaft 20; the side wall of the worm 40 is provided with a second spiral tooth, the worm 40 penetrates through the base 10, and the second spiral tooth of the worm 40 is meshed with the first spiral tooth of the worm wheel 38; the hand wheel 42 is sleeved on the outer side of the worm 40, and the hand wheel 42 is connected with the worm 40.
In this embodiment, a first spiral tooth is arranged on a side wall of the worm wheel 38, the worm wheel 38 is sleeved on the outer side of the central shaft 20, the worm wheel 38 is connected with the central shaft 20, a second spiral tooth is arranged on a side wall of the worm 40, the worm 40 penetrates through the base 10, the second spiral tooth of the worm 40 is meshed with the first spiral tooth of the worm wheel 38, the hand wheel 42 is sleeved on the outer side of the worm 40, and the hand wheel 42 is connected with the worm 40, so that the worm 40 is rotated by rotating the hand wheel 42, the second spiral tooth is meshed with the first spiral tooth, the worm 40 drives the worm wheel 38 to rotate, the central shaft 20 and the composite code wheel fixed on the central shaft 20 are driven to rotate, and the photoelectric signal is output simultaneously.
In one embodiment of the present invention, preferably, as shown in fig. 1, the composite type photoelectric encoder device further includes: a bearing 44; the bearing 44 includes an inner ring, a ball and an outer ring, the bearing 44 is sleeved outside the support shaft 16, the inner ring and the outer ring are attached to an end face of the central shaft 20 far away from the base 10, and the ball is attached to the support shaft 16.
In this embodiment, the bearing 44 includes an inner ring, balls, and an outer ring, the bearing 44 is sleeved outside the support shaft 16, the inner ring and the outer ring are attached to an end surface of the central shaft 20 away from the base 10, and the balls are attached to the support shaft 16, so as to limit the central shaft 20 and reduce friction between the central shaft 20 and the support shaft 16, so that the central shaft 20 rotates smoothly, and abrasion between the support shaft 16 and the central shaft 20 is reduced.
In one embodiment of the present invention, preferably, as shown in fig. 1, the central shaft 20 further includes: a body 201, a connecting portion 202, and a pressure plate 203; the connecting part 202 is sleeved outside the body 201, and one side surface of the optical scale 22 close to the base 10 is attached to the connecting part 202; the pressing plate 203 is located above the optical code wheel 26, and the pressing plate 203 is connected with the connecting portion 202.
In this embodiment, the connecting portion 202 is sleeved on the outer side of the body 201, and one side surface of the optical scale 22 close to the base 10 is attached to the connecting portion 202, so as to support the optical scale 22 and the optical code disc 26; the pressing plate 203 is positioned above the optical code disc 26, and the pressing plate 203 is connected with the connecting part 202, so that the optical dial 22 and the optical code disc 26 are fixed, namely, the stability of the composite code disc is improved, the composite code disc rotates synchronously along with the central shaft 20, and the accuracy of an output signal is ensured.
In one embodiment of the present invention, preferably, as shown in fig. 1, the composite type photoelectric encoder device further includes: a first bolt 46; the first bolt 46 passes through the pressing plate 203 and the connecting portion 202 in this order.
In this embodiment, the composite code wheel is compressed by passing the first bolt 46 through the pressure plate 203 and the connecting portion 202 in this order to connect the pressure plate 203 and the connecting portion 202, thereby improving the stability of the composite code wheel.
In one embodiment of the present invention, preferably, as shown in fig. 1, the worm wheel 38 further includes: the worm wheel body 381, the band-type brake wheel 382, the second bolt 383 and the limiting hole 384; the contracting brake wheel 382 is positioned above the worm wheel body 381, and the contracting brake wheel 382 is connected with the worm wheel body 381; after the second bolt 383 penetrates through the worm wheel body 381, the second bolt 383 is embedded into the contracting brake wheel 382; the limit hole 384 is provided on the contracting brake wheel 382.
In this embodiment, the band-type brake wheel 382 is located above the worm wheel body 381, and the band-type brake wheel 382 is connected with the worm wheel body 381, so that the band-type brake and the worm wheel body 381 rotate synchronously; after the second bolt 383 penetrates through the worm wheel body 381, the second bolt 383 is embedded into the contracting brake wheel 382, so that the connection stability of the worm wheel body 381 and the contracting brake wheel 382 is improved; the limiting hole 384 is arranged on the contracting brake wheel 382, so that the contracting brake wheel 382 is fixed by enabling other connecting pieces to penetrate through the limiting hole 384, the worm wheel 38 is fixed, the worm wheel 38 stops rotating, and the technical effect of contracting brake is achieved.
In one embodiment of the present invention, preferably, as shown in fig. 1, the housing 18 further includes: a housing body 181 and a mounting portion 182; one surface of the shell body 181 close to the base 10 is attached to one end surface of the support shaft 16 far away from the base 10; the mounting portion 182 is annular, and one end of the mounting portion 182 away from the base 10 is connected to the housing body 181.
In this embodiment, the supporting function of the supporting shaft 16 on the housing body 181 is realized by making one surface of the housing body 181 close to the base 10 abut against one end surface of the supporting shaft 16 far from the base 10; by making the mounting portion 182 annular, the end of the mounting portion 182 remote from the base 10 is connected to the casing body 181, so that the intermediate partition 30 is connected to the casing 18 via the mounting portion 182, and the intermediate partition 30 and the casing 18 are not rotated relatively, thereby achieving the technical effect of fixing the light-emitting tube 32, illuminating the optical dial 22 and the optical code disc 26 above it, and forming a moire signal by moving relatively to the indicator grating 36.
In one embodiment of the present invention, preferably, as shown in fig. 1, the composite type photoelectric encoder device further includes: an observation port 48; the observation port 48 is located above the optical code disc 26, and the observation port 48 penetrates the housing body 181.
In this embodiment, the observation port 48 is located above the optical code disc 26, and the observation port 48 penetrates through the housing body 181, so that the microscope system can read the optical signal through the observation port 48, namely, the angle through which the optical scale 22 rotates, and the reading is visual and accurate.
In particular, microscopy system 14 is secured to housing 18 to facilitate reading of optical signal data through viewing port 48.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. A composite photoelectric coded disc device is fixed on a base and is connected with a limiting system and a photoelectric converter, and the composite photoelectric coded disc device is characterized by comprising:
the supporting shaft is connected with the base at one end close to the base;
the shell is positioned above the supporting shaft and is connected with one end, far away from the base, of the supporting shaft;
the central shaft is sleeved outside the supporting shaft and is rotatably connected with the supporting shaft;
the optical scale is annular and is connected with the central shaft;
an outer ring reticle disposed on a side of the optical scale away from the base along a circumferential direction of the optical scale;
the optical coded disc is annular and is positioned above the optical dial, one side surface of the optical coded disc close to the base is connected with one side surface of the optical dial far away from the base, and the axis of the optical coded disc is superposed with the axis of the optical dial;
the inner ring groove is arranged on one side surface, close to the base, of the optical code disc along the circumferential direction of the optical code disc;
the middle partition plate is positioned below the optical scale, is sleeved on the outer side of the central shaft and is connected with the shell;
the light-emitting tube is positioned below the optical scale and is connected with the middle partition plate;
the indicating grating cylinder is a hollow cavity with openings at two ends, is positioned above the optical scale and is connected with the shell;
the indication grating is embedded into the indication grating cylinder and is close to one opening end of the base, and the side wall of the indication grating is connected with the inner wall of the indication grating cylinder.
2. A composite electro-optic code wheel device according to claim 1, further comprising:
the side wall of the worm wheel is provided with first spiral teeth, the worm wheel is sleeved on the outer side of the central shaft, and the worm wheel is connected with the central shaft;
the side wall of the worm is provided with second spiral teeth, the worm penetrates through the base, and the second spiral teeth of the worm are meshed with the first spiral teeth of the worm wheel;
the hand wheel is sleeved on the outer side of the worm and connected with the worm.
3. A composite electro-optic code wheel device according to claim 1, further comprising:
the bearing comprises an inner ring, a ball and an outer ring, the bearing sleeve is arranged on the outer side of the supporting shaft, the inner ring and the outer ring are attached to one end face of the base, away from the central shaft, and the ball is attached to the supporting shaft.
4. A composite electro-optic code wheel device according to claim 1, characterized in that said center shaft further comprises:
a body;
the connecting part is sleeved on the outer side of the body, and one side surface of the optical dial close to the base is attached to the connecting part;
the pressing plate is located above the photoelectric coded disc and connected with the connecting portion.
5. The composite electro-optic code wheel device according to claim 4, characterized in that it further comprises:
the first bolt sequentially penetrates through the pressing plate and the connecting part.
6. The composite electro-optic code wheel device of claim 1, wherein the worm gear further comprises:
a worm gear body;
the brake contracting wheel is positioned above the worm wheel body and is connected with the worm wheel body;
the second bolt penetrates through the worm wheel body and is embedded into the contracting brake wheel;
and the limiting hole is formed in the contracting brake wheel.
7. A composite electro-optic code wheel device according to claim 1, wherein said housing further comprises:
the surface of the shell body close to the base is attached to one end surface of the support shaft far away from the base;
the installation department, the installation department is the annular, the installation department is kept away from the one end of base with casing body is connected.
8. A composite electro-optic code wheel device according to any one of claims 1-7, further comprising:
and the observation port is positioned above the optical code disc and penetrates through the shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779567.9A CN112097802A (en) | 2020-08-05 | 2020-08-05 | Composite photoelectric code disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010779567.9A CN112097802A (en) | 2020-08-05 | 2020-08-05 | Composite photoelectric code disc device |
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| Publication Number | Publication Date |
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| CN112097802A true CN112097802A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010779567.9A Pending CN112097802A (en) | 2020-08-05 | 2020-08-05 | Composite photoelectric code disc device |
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| DE3528955A1 (en) * | 1984-11-01 | 1986-04-30 | Jenoptik Jena Gmbh, Ddr 6900 Jena | Arrangement for angular measurement, in particular for geodetic instruments |
| CN2898769Y (en) * | 2006-04-29 | 2007-05-09 | 中车集团沈阳第三三○一工厂 | Digital optical crosswind transit |
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| CN201697580U (en) * | 2010-06-21 | 2011-01-05 | 张荣泽 | Antiwear graduated ruler |
| CN201715963U (en) * | 2010-06-09 | 2011-01-19 | 上海市宝山区青少年科学技术指导站 | Anti-abrasion graduated scale |
| CN201748917U (en) * | 2010-06-12 | 2011-02-16 | 沈阳第三三○一工厂 | Wireless optical pilot balloon theodolite |
| CN204878465U (en) * | 2015-06-24 | 2015-12-16 | 沈阳第三三0一工厂 | Fast switch over worm gear mechanism |
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2020
- 2020-08-05 CN CN202010779567.9A patent/CN112097802A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB266226A (en) * | 1926-08-31 | 1927-02-24 | James Simms Wilson | Improvements in and relating to optical scale reading devices |
| DE3528955A1 (en) * | 1984-11-01 | 1986-04-30 | Jenoptik Jena Gmbh, Ddr 6900 Jena | Arrangement for angular measurement, in particular for geodetic instruments |
| CN2898769Y (en) * | 2006-04-29 | 2007-05-09 | 中车集团沈阳第三三○一工厂 | Digital optical crosswind transit |
| CN201516765U (en) * | 2009-09-28 | 2010-06-30 | 张业放 | Ruler |
| CN201715963U (en) * | 2010-06-09 | 2011-01-19 | 上海市宝山区青少年科学技术指导站 | Anti-abrasion graduated scale |
| CN201748917U (en) * | 2010-06-12 | 2011-02-16 | 沈阳第三三○一工厂 | Wireless optical pilot balloon theodolite |
| CN201697580U (en) * | 2010-06-21 | 2011-01-05 | 张荣泽 | Antiwear graduated ruler |
| CN204878465U (en) * | 2015-06-24 | 2015-12-16 | 沈阳第三三0一工厂 | Fast switch over worm gear mechanism |
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Application publication date: 20201218 |
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