CN106813694A - A kind of bearing-free encoder - Google Patents

A kind of bearing-free encoder Download PDF

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Publication number
CN106813694A
CN106813694A CN201611189334.3A CN201611189334A CN106813694A CN 106813694 A CN106813694 A CN 106813694A CN 201611189334 A CN201611189334 A CN 201611189334A CN 106813694 A CN106813694 A CN 106813694A
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China
Prior art keywords
seat
encoder
positioning sleeve
bearing
case
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Granted
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CN201611189334.3A
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CN106813694B (en
Inventor
陶慧
李明武
刘宇强
杨卫涛
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Zhejiang Zobow Mechanical and Electrical Tech Co Ltd
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Zhejiang Zobow Mechanical and Electrical Tech Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/26Mechanical 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
    • G01D5/32Mechanical 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 with attenuation or whole or partial obturation of beams of light
    • G01D5/34Mechanical 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 with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)

Abstract

The invention provides a kind of bearing-free encoder, belong to electronic equipments technical field.It needs debugging cumbersome when being easily damaged, install when solving the problems, such as that existing bearing-free encoder is transported.This bearing-free encoder includes mounting seat, grating seat, lenticular lenses, encoder main body, case and positioning sleeve, open slot corresponding with clamp screw pit is offered on case, location hole is further opened with case, grating seat is located at the lower section of location hole, some grooves for running through circumferentially are offered on the inwall of location hole, there are some locating pieces on the periphery wall of positioning sleeve, positioning sleeve one end penetrates in mounting hole and locating piece can be embedded in corresponding groove, positioning sleeve can be penetrated grating seat is pressed in mounting seat in case and locating piece is resisted against at the lower edge of location hole.This bearing-free encoder transport when, grating seat can be pressed in mounting seat, will not damage, during installation, it is not necessary to debugging it is ensured that encoder have accuracy higher, it is easy for installation.

Description

A kind of bearing-free encoder
Technical field
The invention belongs to electronic equipments technical field, it is related to a kind of encoder, particularly a kind of bearing-free encoder.
Background technology
Encoder is to work out signal or data, be converted to the signal form that may be used to communicate, transmit and store Equipment.Angular displacement or straight-line displacement are converted into electric signal by encoder, and the former is referred to as code-disc, and the latter is referred to as yardstick.According to reading Mode encoder can be divided into contact and contactless two kinds;Can be divided into increment type and absolute type according to operation principle encoder Two classes.Incremental encoder is that displacement is converted into periodic electric signal, then this electric signal is transformed into count pulse, is used The number of pulse represents the size of displacement.One digital code of determination of each position correspondence of absolute type encoder, therefore it Indicating value only with measurement starting and final position it is relevant, and with measure pilot process it is unrelated.In motor encoder application, Having a kind of encoder can be while having the hybrid encoder of incremental encoder and absolute type encoder function --- servo is compiled Code device, in current electromechanics trade, the application of encoded servo device is so the maximum coding of proportion in motor encoder Device.
Encoded servo device general currently on the market has integral structure, also there is split-type structural.Its integral structure bag Include:Play two bearings of the main body of spring bearing and main shaft, supports main shaft and grating rotating, user installation connection motor shaft The main shaft for being used, the flat spring used by user's stationary body, the encoder light emitting source on encoder main body is arranged on Determine grating in main body, the dynamic grating on grating disc seat, the circuit board on encoder main body is compiled for protecting The shell of code device internal structure, for the photocell of receiving optical signal.Split encoder structure include grating, grating seat, Main body, the light emitting source being fixed in main body, the circuit board being fixed in main body and on circuit board receiving optical signal photocell.
Such as Chinese patent application (application number:201320199294.6) a kind of bearing-free cone centring type coding is disclosed Device, the encoder includes encoder main body, is arranged on LED light emitting sources and circuit board on encoder main body, is welded on circuit board On cable, set on circuit boards be used for receiving optical signal photocell, mounting hole is provided with encoder main body, be used for The dynamic grating seat of branch racking grating, for the feeler gauge of client's installation and debugging, the lower end of described dynamic grating seat is cone segments, coding Be provided with device main body with dynamic grating seat lower end cone segments taper identical taper hole, under taper hole on encoder main body and dynamic grating seat End cone body end taper matches.
There is following defect in above-mentioned encoder:It is inserting by cone segments and taper hole between grating seat and encoder main body Connect in succession, in transportation, grating seat is not attached on machine shaft, i.e. grating seat without any positioning, Can be relatively moved between grating seat and lenticular lenses and encoder main body, be susceptible to damaged in collision, and in transportation In, relative movement is susceptible between grating seat and encoder main body, therefore encoder with motor when installing, in addition it is also necessary to pass through Feeler gauge debugs the accuracy that the position between dynamic grating and encoder main body ensures encoder operation, operates relatively complicated, no Just.
The content of the invention
The purpose of the present invention is directed to existing technology and there is above mentioned problem, it is proposed that a kind of bearing-free encoder, this hair Bright technical problem to be solved is:The damage of lenticular lenses when how to prevent from transporting, while guarantee does not need feeler gauge when mounted Debugging can guarantee that accuracy.
The purpose of the present invention can be realized by following technical proposal:A kind of bearing-free encoder, including mounting seat, grating Seat, lenticular lenses and encoder main body, the encoder main body are fixed in mounting seat, the lenticular lenses be fixed on grating seat and The lenticular lenses are oppositely arranged with the encoder main body, and the grating seat is resisted against in the mounting seat, it is characterised in that institute Stating encoder also includes case and tubular positioning sleeve, and the case is fixed in mounting seat, the grating seat, lenticular lenses and Encoder main body is respectively positioned in case, and location hole is further opened with the case, and the grating seat is located under the location hole Side, circumferentially offers some grooves for running through on the inwall of the location hole, have on the periphery wall of the positioning sleeve some Locating piece, described positioning sleeve one end is penetrated in mounting hole and the locating piece can be embedded in corresponding groove, the positioning sleeve Can penetrate grating seat is pressed in mounting seat in case and the locating piece is resisted against at the lower edge of the location hole.
When this bearing-free encoder is transported, positioning sleeve is directed at the location hole on case, the positioning block alignment on positioning sleeve Groove on location hole inwall, positioning sleeve can be penetrated grating seat is pressed in mounting seat in case, and now locating piece is passed Groove, rotational positioning set so that the upper surface of locating piece is resisted against at the lower edge of location hole, and grating seat is pressed in mounting seat Positioned and positioning sleeve between, in transportation, relative motion will not occur between grating seat and mounting seat, when needs and motor dress Timing, the rotating shaft of motor is located in grating seat, is sequentially passed through on the open slot and grating seat of case by holding screw Tightening screwed hole is resisted against on machine shaft, and machine shaft is fixed with the grating seat, is then rotated further by positioning sleeve so that fixed Position set departs from grating seat, easy for installation.
, in transport, can be pressed on for grating seat by this bearing-free encoder by case and the matching design of positioning sleeve In mounting seat, relative motion will not occur between grating seat and mounting seat, lenticular lenses will not because collide and caused by damage, and And because grating seat is positioned, the relative position between lenticular lenses and encoder main body is also fixed, will not be changed, because This, when being installed with motor, it is not necessary to the position of grating seat is debugged by feeler gauge it is ensured that encoder has essence higher True property, installs more convenient.Additionally, case is existing to coordinate positioning sleeve positioning function, dust-proof effect can be played again, it is to avoid extraneous The impurity such as dust enter cause burn into damage encoder.
In above-mentioned bearing-free encoder, the inner surface of the positioning sleeve penetrating end is tapered locating surface, described The internal diameter of locating surface is gradually reduced from positioning sleeve penetrating end toward the other end, and the upper end of the grating seat is tubular butting section, The external diameter of the butting section is less than the maximum inner diameter of locating surface, more than the minimum diameter of locating surface.Positioning sleeve penetrates case interior energy The upper end of grating seat is enough set in, locating surface is tapered, positioning sleeve is moved down can be by the butting section clamping of grating seat, then Rotational positioning set so that the upper surface of locating piece is resisted against at the lower edge of location hole, and grating seat is pressed in mounting seat, from And can realize positioning in the horizontal and vertical directions to grating seat, being further ensured that between grating seat and mounting seat to occur Relative motion, lenticular lenses will not because collide and caused by damage, while install when need not debug can guarantee that encoder have There is accuracy higher.
Some half grooves are circumferentially further opened with above-mentioned bearing-free encoder, on the inwall of the location hole, it is described Through the lower edge of location hole, the locating piece can be embedded in half groove and be positioned in half groove half groove.During transport, Locating piece passes groove, rotational positioning set so that the upper surface of locating piece is resisted against at the lower edge of location hole, and grating seat is pressed It is tight to be positioned between mounting seat and positioning sleeve;When needing to be assembled with motor, the rotating shaft of motor is located in grating seat, passed through The tightening screwed hole that holding screw is sequentially passed through on the open slot and grating seat of case is resisted against on machine shaft, by machine shaft Fixed with the grating seat, be then rotated further by positioning sleeve, locating piece is embedded in and is positioned in half groove, positioning sleeve takes off with grating seat From grating seat can be rotated with machine shaft.
In above-mentioned bearing-free encoder, the positioning sleeve has annular gear edge with respect to the other end of penetrating end, described It is arranged with spring outside positioning sleeve, the spring one end is resisted against annular gear along upper, and the other end is resisted against on case, the locating piece Upper surface can be resisted against on the bottom wall of half groove under the action of the spring.When the upper surface of locating piece is resisted against the following of location hole At, spring is compressed, and be pressed on grating seat in mounting seat by positioning sleeve.After machine shaft is fixed on grating seat, rotate Positioning sleeve causes that locating piece is gone at the position being aligned with half groove, and in the presence of spring force, locating piece is embedded in half groove Interior, and the upper surface of locating piece is resisted against positioning is realized on the bottom wall of half groove, positioning sleeve and grating seat depart from, and grating seat can be with Machine shaft is together rotated.By the design of spring, it is ensured that stability of the positioning sleeve in every configuration state, it is ensured that grating seat Relative motion will not occur between mounting seat, lenticular lenses will not because collide and caused by damage, while need not when installing Debugging can guarantee that encoder has accuracy higher.
In above-mentioned bearing-free encoder, the end of the butting section has chamfering.The design of chamfering, coordinates positioning Cover the taper inwall of locating surface so that grating seat can be good at being positioned in mounting seat, it is ensured that grating seat and mounting seat it Between relative motion will not occur, lenticular lenses will not because collide and caused by damage, while need not debug and can protect when installing Card encoder has accuracy higher.
In above-mentioned bearing-free encoder, the lower end of the grating seat is tubular installation portion, the installation portion Bottom surface is plane and is resisted against in mounting seat that the external diameter of the external diameter more than butting section of the installation portion, the lenticular lenses are set in On butting section, on the periphery wall of the butting section on offer annular mounting groove, jump ring is provided with the annular mounting groove, it is described Lenticular lenses lower end is resisted against on installation portion, and upper end is resisted against on jump ring.Lenticular lenses pass through to be fixed on grating seat between jump ring, light The bottom surface of grid seat is abutted directly against in mounting seat for plane, i.e., after grating seat is positioned, between grating seat and encoder main body Relative position will not be moved, and lenticular lenses and encoder main body ensure that accurate relative position all the time, therefore when installing, Need not be debugged by feeler gauge.
In above-mentioned bearing-free encoder, the grating seat is provided with tightening screwed hole, offered on the case with The corresponding open slot of the clamp screw pit, has the slot to make way to be formed that caves inward on the periphery wall of the case, described to open Mouth groove is opened on the bottom wall of slot to make way, and the openend of the open slot is located at the bottom of case.The design of slot to make way, reduces The required axial length of holding screw, while being also convenient for installing.
In above-mentioned bearing-free encoder, the depth of half groove is the 1/2~2/3 of the depth of positioning hole, described The thickness of locating piece matches with the depth of half groove.
Compared with prior art, this bearing-free encoder has advantages below:
1st, by the matching design of case, spring and positioning sleeve, in transport, grating seat can be pressed on mounting seat On, relative motion will not occur between grating seat and mounting seat, lenticular lenses will not because collide and caused by damage, and due to Grating seat is positioned, and the relative position between lenticular lenses and encoder main body is also fixed, will not be changed, therefore, When being installed with motor, it is not necessary to the position of grating seat is debugged by feeler gauge it is ensured that encoder have accuracy higher, Install more convenient.
2nd, case is existing coordinates positioning sleeve positioning function, dust-proof effect can be played again, it is to avoid the impurity such as extraneous dust enters Enter and cause burn into damage encoder.
3rd, can be clamped on grating seat on locating surface by the design of the tapered locating surface of positioning sleeve, so as to exist to grating seat Positioning horizontally and vertically can be realized on direction, is further ensured that between grating seat and mounting seat will not relative motion, light Grid will not because collide and caused by damage, while need not being debugged when installing, to can guarantee that encoder has higher accurate Property.
Brief description of the drawings
Fig. 1 is the explosive view of this bearing-free encoder.
Fig. 2 is the sectional view of this bearing-free encoder.
Fig. 3 is the three-dimensional structure diagram of case.
Fig. 4 is the three-dimensional structure diagram of positioning sleeve.
In figure, 1, mounting seat;2nd, grating seat;2a, tightening screwed hole;2b, butting section;2c, installation portion;3rd, lenticular lenses;4、 Encoder main body;5th, jump ring;6th, case;6a, open slot;6b, location hole;6b1, groove;6b2, half groove;6c, slot to make way;7th, it is fixed Position set;7a, locating piece;7b, locating surface;7c, annular gear edge;8th, spring.
Specific embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described, But the present invention is not limited to these embodiments.
As Figure 1-4, this bearing-free encoder, including mounting seat 1, grating seat 2, lenticular lenses 3, encoder main body 4, cover Shell 6 and tubular positioning sleeve 7.Encoder main body 4 is fixed in mounting seat 1, and lenticular lenses 3 are fixed on grating seat 2 and described Lenticular lenses 3 are oppositely arranged with encoder main body 4, and grating seat 2 is resisted against in mounting seat 1, and case 6 is fixed in mounting seat 1, grating Seat 2, lenticular lenses 3 and encoder main body 4 are respectively positioned in case 6, and grating seat 2 is provided with tightening screwed hole 2a, the periphery wall of case 6 It is upper that there is the slot to make way 6c to be formed that caves inward, open slot corresponding with tightening screwed hole 2a is offered on the bottom wall of slot to make way 6c The openend of 6a, open slot 6a is located at the bottom of case 6.
As shown in Figure 1,2 and 3, location hole 6b is further opened with case 6, grating seat 2 is located at the lower section of location hole 6b, positioning Some groove 6b1 for running through and some half groove 6b2, half groove 6b2 are circumferentially offered on the inwall of hole 6b through location hole 6b's Lower edge.
As shown in figure 4, have some locating piece 7a on the periphery wall of positioning sleeve 7, the one end of positioning sleeve 7 penetrate in mounting hole and Locating piece 7a can be embedded in corresponding groove 6b1, and positioning sleeve 7 can be penetrated in case 6 and for grating seat 2 be pressed on mounting seat 1 Upper and locating piece 7a is resisted against at the lower edge of location hole 6b.As shown in Fig. 1,2 and 4, the other end of the positioning sleeve 7 with respect to penetrating end With annular gear along 7c, spring 8 is arranged with outside positioning sleeve 7, the one end of spring 8 is resisted against annular gear along 7c, and the other end is resisted against On case 6, locating piece 7a can be resisted against on the bottom wall of half groove 6b2 upper surface in the presence of spring 8, the depth of half groove 6b2 It is the 1/2~2/3 of location hole 6b depth, the thickness of locating piece 7a matches with the depth of half groove 6b2.
More specifically, as illustrated in fig. 1 and 2, the upper end of grating seat 2 is tubular butting section 2b, the end of butting section 2b There is chamfering, the lower end of grating seat 2 is tubular installation portion 2c, and the bottom surface of installation portion 2c is plane and is resisted against installation at portion On seat 1, the external diameter of the external diameter more than butting section 2b of installation portion 2c, lenticular lenses 3 are set on the 2b of butting section, the periphery of butting section 2b Annular mounting groove is offered on wall, jump ring 5 is provided with annular mounting groove, the lower end of lenticular lenses 3 is resisted against on installation portion 2c, upper end It is resisted against on jump ring 5.
As shown in Figures 2 and 4, the inner surface of the penetrating end of positioning sleeve 7 is tapered locating surface 7b, the internal diameter of locating surface 7b by The penetrating end of positioning sleeve 7 is gradually reduced toward the other end, the maximum inner diameter of the external diameter less than locating surface 7b of the butting section 2b of grating seat 2, greatly In the minimum diameter of locating surface 7b.
When this bearing-free encoder is transported, positioning sleeve 7 is directed at the location hole 6b on case 6, the locating piece on positioning sleeve 7 Groove 6b1 on 7a alignment location hole 6b inwalls, positioning sleeve 7 penetrates the upper end that grating seat 2 can be set in case 6, positioning Face 7b is tapered, and positioning sleeve 7 is moved down can be by the butting section 2b clampings of grating seat 2, then rotational positioning set 7 so that fixed The upper surface of position block 7a is resisted against at the lower edge of location hole 6b, and spring 8 is compressed, and grating seat 2 is pressed in mounting seat 1, Relative motion will not occur between grating seat 2 and mounting seat 1, lenticular lenses 3 will not because collide and caused by damage.When need with Motor assemble when, the rotating shaft of motor is located in grating seat 2, by holding screw sequentially pass through case 6 open slot 6a and Tightening screwed hole 2a on grating seat 2 is resisted against on machine shaft, machine shaft is fixed with grating seat 2, any rotational positioning Set 7 causes that locating piece 7a is gone at the position being aligned with the half groove 6b2, in the presence of the elastic force of spring 8, locating piece 7a insertions In half groove 6b2, and the upper surface of locating piece 7a is resisted against realization positioning on the bottom wall of half groove 6b2, and positioning sleeve 7 takes off with grating seat 2 From grating seat 2 can together be rotated with machine shaft, because grating seat 2 is positioned, between lenticular lenses 3 and encoder main body 4 Relative position is also fixed, will not be changed, therefore, when being installed with motor, it is not necessary to debug grating by feeler gauge Seat 2 position it is ensured that encoder have accuracy higher, install it is more convenient.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.

Claims (8)

1. a kind of bearing-free encoder, including mounting seat (1), grating seat (2), lenticular lenses (3) and encoder main body (4), it is described Encoder main body (4) is fixed in mounting seat (1), and the lenticular lenses (3) are fixed on grating seat (2) and the lenticular lenses (3) It is oppositely arranged with the encoder main body (4), the grating seat (2) is resisted against in the mounting seat (1), it is characterised in that institute Stating encoder also includes case (6) and tubular positioning sleeve (7), and the case (6) is fixed in mounting seat (1), the light Grid seat (2), lenticular lenses (3) and encoder main body (4) are respectively positioned in case (6), and location hole is further opened with the case (6) (6b), the grating seat (2) circumferentially offers on the lower section of the location hole (6b), the inwall of the location hole (6b) Some grooves (6b1) for running through, have some locating pieces (7a), the positioning sleeve (7) on the periphery wall of the positioning sleeve (7) End is penetrated in mounting hole and the locating piece (7a) can be embedded in corresponding groove (6b1), and the positioning sleeve (7) can penetrate Grating seat (2) is pressed in mounting seat (1) in case (6) and the locating piece (7a) is resisted against under the location hole (6b) Edge.
2. bearing-free encoder according to claim 1, it is characterised in that the inner surface of positioning sleeve (7) penetrating end It is tapered locating surface (7b), the internal diameter of the locating surface (7b) is gradually reduced from positioning sleeve (7) penetrating end toward the other end, institute The upper end of grating seat (2) is stated for tubular butting section (2b), the external diameter of the butting section (2b) is less than locating surface (7b) most Large diameter, more than the minimum diameter of locating surface (7b).
3. bearing-free encoder according to claim 1 and 2, it is characterised in that edge on the inwall of the location hole (6b) Some half grooves (6b2) are circumferentially further opened with, half groove (6b2) is through the lower edge of location hole (6b), the locating piece (7a) Can be embedded in half groove (6b2) and be positioned in half groove (6b2).
4. bearing-free encoder according to claim 3, it is characterised in that the positioning sleeve (7) is another with respect to penetrating end One end has annular gear along (7c), and spring (8) is arranged with outside the positioning sleeve (7), and described spring (8) one end is resisted against annular gear Along on (7c), the other end is resisted against on case (6), and upper surface can be against in the presence of spring (8) for the locating piece (7a) On the bottom wall of half groove (6b2).
5. bearing-free encoder according to claim 2, it is characterised in that the end of the butting section (2b) has Angle.
6. bearing-free encoder according to claim 5, it is characterised in that the lower end of the grating seat (2) is to be cylindrical in shape Installation portion (2c), the bottom surface of the installation portion (2c) is for plane and is resisted against in mounting seat (1), the installation portion (2c) it is outer External diameter of the footpath more than butting section (2b), the lenticular lenses (3) are set on butting section (2b), the periphery wall of the butting section (2b) It is upper to offer annular mounting groove, jump ring (5) is provided with the annular mounting groove, lenticular lenses (3) lower end is resisted against installation In portion (2c), upper end is resisted against on jump ring (5).
7. the bearing-free encoder according to claim 1 or 2 or 5 or 6, it is characterised in that the grating seat (2) is provided with Tightening screwed hole (2a), offers open slot (6a) corresponding with the tightening screwed hole (2a), the cover on the case (6) There is the slot to make way to be formed (6c) that caves inward, the open slot (6a) is opened in slot to make way (6c) on the periphery wall of shell (6) On bottom wall, the openend of the open slot (6a) is located at the bottom of case (6).
8. bearing-free encoder according to claim 3, it is characterised in that the depth of half groove (6b2) is described fixed The 1/2~2/3 of position hole (6b) depth, the thickness of the locating piece (7a) matches with the depth of half groove (6b2).
CN201611189334.3A 2016-12-21 2016-12-21 A kind of bearing-free encoder Active CN106813694B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107990923A (en) * 2017-12-28 2018-05-04 长春禹衡光学有限公司 A kind of Split encoder
CN110388946A (en) * 2019-08-17 2019-10-29 浙江沪龙科技股份有限公司 A kind of individual encoders and the motor with individual encoders
CN112525234A (en) * 2020-11-19 2021-03-19 无锡麦德瑞光电科技有限公司 Heavy-load type shaftless encoder

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DE3171133D1 (en) * 1980-10-03 1985-08-01 Xerox Corp Binary ink drop printing apparatus
CN2519332Y (en) * 2001-11-13 2002-10-30 王锡成 Four-way rotating touch type sensing device
CN2558673Y (en) * 2002-06-27 2003-07-02 贺欣机械厂股份有限公司 Improvement on location device of sewing machine needle
DE102010042101A1 (en) * 2010-10-07 2012-04-12 Osram Ag Sensor device for use in raster lamp i.e. ceiling light, has sensor coupled with base body, and fastening device coupled with base body and comprising V-shaped clamping device for fastening sensor device at lamella of raster lamp
CN202814422U (en) * 2012-07-31 2013-03-20 长春荣德光学有限公司 Ultrathin permanent-magnetism servo high-speed motor encoder
CN105300428A (en) * 2014-06-13 2016-02-03 日本电产三协株式会社 Sensor device and encoder

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Publication number Priority date Publication date Assignee Title
DE3171133D1 (en) * 1980-10-03 1985-08-01 Xerox Corp Binary ink drop printing apparatus
CN2519332Y (en) * 2001-11-13 2002-10-30 王锡成 Four-way rotating touch type sensing device
CN2558673Y (en) * 2002-06-27 2003-07-02 贺欣机械厂股份有限公司 Improvement on location device of sewing machine needle
DE102010042101A1 (en) * 2010-10-07 2012-04-12 Osram Ag Sensor device for use in raster lamp i.e. ceiling light, has sensor coupled with base body, and fastening device coupled with base body and comprising V-shaped clamping device for fastening sensor device at lamella of raster lamp
CN202814422U (en) * 2012-07-31 2013-03-20 长春荣德光学有限公司 Ultrathin permanent-magnetism servo high-speed motor encoder
CN105300428A (en) * 2014-06-13 2016-02-03 日本电产三协株式会社 Sensor device and encoder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107990923A (en) * 2017-12-28 2018-05-04 长春禹衡光学有限公司 A kind of Split encoder
CN110388946A (en) * 2019-08-17 2019-10-29 浙江沪龙科技股份有限公司 A kind of individual encoders and the motor with individual encoders
CN112525234A (en) * 2020-11-19 2021-03-19 无锡麦德瑞光电科技有限公司 Heavy-load type shaftless encoder

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