CN202329650U - Heavy-duty rotary-transformer encoder with hollow shaft - Google Patents
Heavy-duty rotary-transformer encoder with hollow shaft Download PDFInfo
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- CN202329650U CN202329650U CN2011203704639U CN201120370463U CN202329650U CN 202329650 U CN202329650 U CN 202329650U CN 2011203704639 U CN2011203704639 U CN 2011203704639U CN 201120370463 U CN201120370463 U CN 201120370463U CN 202329650 U CN202329650 U CN 202329650U
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- revolve
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Abstract
The utility model discloses a heavy-duty rotary-transformer encoder with a hollow shaft, belonging to the technical field of industrial detection. The heavy-duty rotary-transformer encoder mainly comprises an encoder shaft sleeve, a locking ring, a rotary transformer, a rotary transformer rotor, a rotary transformer stator, a rotary transformer stand, a rotary transformer cover, a RD junction box, an intelligent R/D decoder circuit board, an output connector, an expansion sleeve and a stand bearing cover, wherein the rotary transformer rotor is installed on the encoder shaft sleeve via the expansion sleeve; the rotary transformer stator is fixed in the rotary transformer stand by the rotary transformer stand and the rotary transformer cover; the encoder shaft sleeve is sleeved on the insulated adapting shaft of the rotary-transformer encoder and locked by the locking ring; the RD junction box is connected to the rotary transformer cover and the rotary transformer stand, or is fixedly connected with the rotary transformer stand only; and the intelligent R/D decoder circuit board is installed in the RD junction box, and the output connector is installed outside the RD junction box. The heavy-duty rotary-transformer encoder with a hollow shaft disclosed by the utility model is simple in structure, convenient in installation, wide in application range, and obviously superior to photoelectric encoder in position and velocity feedback system needing high reliability and high accuracy simultaneously.
Description
Technical field
The utility model relates to the industrial detection technical field, exactly, is meant a kind of tubular shaft heavy duty resolving encoder.
Technical background
At present, the high precision overloading photoelectric encoder is applied in the industry spot of angle displacement measurement and velocity survey of various high-power main driving motors widely.Photoelectric encoder is through opto-electronic conversion the axis angular position information translation of importing to be become the corresponding digital code.Photoelectric encoder mainly is made up of photoelectric code disk, grating, photoelectric conversion tube and change-over circuit.And the material of photoelectric code disk mainly contains three kinds: glass, plastics, metal.Vitreous code-disc good temp characteristic, indeformable, along with the development of photoetching technique can be accomplished high precision, but frangible; The code-disc various aspects of performance of plastics matter is all poor, but low price; Metallic code-disc temperature characterisitic is relatively poor yielding, can only accomplish medium or low precision because of not using photoetching technique, but sturdy and durable; The photoelectric conversion tube long time continuous working can produce aging, and emissivity descends, and makes photoelectric encoder reliability variation.Although engineers is being done heavily loaded design aspect the use of high precision photoelectric scrambler; But because the own defective of glass code-disc in the photoelectric encoder and photoelectric conversion tube, in practical application, the large power rotor axle head may produce shaft current and damage photoelectric encoder; As time goes on photoelectric conversion tube also can wear out; Its reliability can descend greatly, along with automated system to reliability high precision aspect require increasingly high, current; The photoelectric encoder that is widely used has developed into a flat-top stage, can not satisfy especially to require high reliability and high-precision industry spot simultaneously.The appearance of the urgent expectation substitute products of high-precision automation control system.
Rotary transformer is a kind of element that angle of rotor is transformed into the micromotor signal that becomes a certain funtcional relationship with it.Be equivalent to a rotary transformer on the principle, be equivalent to the asynchronous motor of the two poles of the earth two phase wire wounds on the structure, the principle of work of rotary transformer and structures shape it have self unique advantage:
1, be adapted at work under the rugged environment, like vibrations, dust impacts high temperature, environment such as corrosion;
2, in very wide temperature range, possess high reliability, high precision and high mechanical property, can be between-50 ℃-155 ℃ steady operation.
3, owing to there is not bearing, be adapted at working under the situation of high rotating speed and high acceleration, can stand impact up to 500g (10ms), at vibration frequency the vibrations that can bear 20g under the situation of 10-500HZ.
4, there is problem of aging anything but.
5, possesses characteristic with the longer distance of analog signal transmission.
Above characteristics have determined rotary transformer to have range of application very widely, can be applicable to the occasion of high reliability and high precision and environment very severe.
And in the past except aspect military and the special dimension use; And do not obtain promoting at industrial circle; Mainly be because must could become digital quantity to position, angle conversion of signals, and realize the field circuit and the decoding circuit of this complicacy through complicated high frequency field circuit and decoding circuit; Technical difficulty is big, and cost is also high.Nowadays; Development along with microelectric technique and microprocessor special chip; Developed RD microprocessor special chip in the world; Its manufacturing cost is compared not high with photoelectric encoder, therefore make based on the axis angle measurement device of rotary transformer and realizing heavily loaded design integration, miniaturization, high precision and exporting reliable digital signal to become possibility.Have only at present the application of split type resolving encoder in the world, still do not have incorporate tubular shaft heavy duty resolving encoder.
The utility model content
The purpose of the utility model be to various heave-load device heavy-duty motors provide a kind of simple in structure, be convenient to install, technology is novel, highly reliable, high precision, wide range of application, the miniaturization that has high end interface, integrated, networked axis angular position and the heavily loaded resolving encoder of novel hollow axle of velocity survey.The utility model is in design; Perfectly combine rotary transformer and microprocessor decoding chip and heavy structure; It has overcome all defect that photoelectric encoder exists fully, has constituted small-sized integrated high reliability, high-precision heavily loaded resolving encoder product.Compare with photoelectric encoder, need especially at the same time can obviously be superior to photoelectric encoder in the high-precision position of high reliability, the rate feedback system.The utility model has obtained satisfied effect through test, can be more widely used in the near future.
The utility model provides a kind of tubular shaft heavy duty resolving encoder; Mainly comprise scrambler axle sleeve, binding ring, rotary transformer, revolve and become rotor, revolve set, revolve and become support, revolve and become cover, RD terminal box, intelligent R/D decoder circuit plate, output connector, expansion set, high-speed bearing and bearing cap; Described revolving on the left end seam that becomes support connects rotary transformer, revolves to become rotor and be installed in coder shaft and put; Revolve set and revolved and become support and become firm being fixed on of cover and revolve the change base inner, revolve and become support and revolve change cover bolt seals and be connected with revolving; Revolve the right-hand member two rank seams that become support and be bumped into high-speed bearing and bearing cap, bearing cap with revolve change support screw and be connected; The coder shaft cover is sleeved on the right-hand member of resolving encoder insulation adaptive shaft, and then with binding ring locking, the left end flange of resolving encoder insulation adaptive shaft is connected with big rotor axle head; RD terminal box screw is connected to revolve and becomes cover and revolve on the change support; Perhaps only with revolve that to become support affixed; Intelligent R/D decoding circuit plate is equipped with in RD terminal box inside, and the output connector is equipped with in the outside, and rotary transformer is connected with intelligent R/D decoding circuit plate through the RS connecting line.
The utility model has overcome all defect that photoelectric encoder exists; Can substitute the use of existing various tubular shaft photoelectric encoders fully; With resolving encoder insulation adaptive shaft (application number 2010102433697; The utility model name is called: the resolving encoder insulation adaptive shaft) share; Be applicable to that the bigger motor main transmission of heave-load device scrambler tests the speed and position probing, be applicable to rotten gas of high temperature, high humidity, high density dust, high pressure and big vibrations and the rugged surroundings of impact, and have high end interface.
The advantage that the utility model is used for axis angular position and velocity survey is:
1. use single direct supply working method;
2. adapt to abominable environment for use, high temperature, high humidity, big vibrations and impact;
3. solved complicated field power supply and the multi-channel dc power supply problem of adding that rely on;
4. realized the integrated small design of networked;
5. the module damage that can effectively prevent the power supply reversal connection and cause;
6. simple in structure, novel, adopt insulation adaptive shaft for rotary encoder, exempted when installing requirement to concentricity;
7. said scrambler promptly can be used as absolute encoder and uses, and also can be used as incremental encoder and uses, and also can be used as the shaft angle transmitter and uses, fully the instead of optical photoelectric coder.
8. share with the resolving encoder insulation adaptive shaft, and adopt firm heavily loaded metal shell, can be applicable to fully on the turning axle of high-power main driving motor of the various heave-load devices that rotating starting is frequent, can resist big impact and vibrations; Can overcome damage and the interference of shaft current, electromagnetic radiation fully to scrambler.
Description of drawings
The mounting structure synoptic diagram of the tubular shaft heavy duty resolving encoder that Fig. 1 provides for the utility model;
Fig. 1 a is the structural representation of scrambler axle sleeve in the utility model;
Fig. 1 b is the side view of Fig. 1 a;
The structural representation of expansion set in Fig. 1 c the utility model;
Fig. 2 is the principle of work synoptic diagram of intelligent R/D decoding circuit plate used in the utility model.
Among the figure:
1. revolve and become support 2. rotary transformers 3. and revolve and become rotor 4. and revolve the sub-5.RS connecting line of set
6. intelligent RD decoder circuit plate 7.RD terminal box 8. is revolved the change cover
9. resolving encoder insulation adaptive shaft 10. big rotor axle head 11. expansion sets 12. support bearing caps
13. scrambler axle sleeve 14. binding rings 15. high-speed bearings 16. scrambler moment supports
17. customized flange assembly 18. blind holes 19. output connectors
20. thrust collar 21. grooves 22. circlips 23. reducings 24. clamping screws
25. cylinder counterbore 26. threaded holes 27. open loops 28. small sircle holes
Embodiment
To combine accompanying drawing that the utility model is done further detailed description below.
See also shown in Figure 1; Tubular shaft that the utility model provides heavy duty resolving encoder comprises revolving and becomes support 1, rotary transformer 2, revolves and become rotor 3, revolve set 4, RS connecting line 5, intelligent R/D decoder circuit plate 6, RD terminal box 7, revolve and become cover 8, expansion set 11, bearing cap 12, scrambler axle sleeve 13, binding ring 14, output connector 19; Also comprise resolving encoder insulation adaptive shaft 9, scrambler moment support 16; This tubular shaft heavy duty resolving encoder is the shaft angle transmitter with rotary transformer 2; RS connecting line 5 through rotary transformer 2 is connected with intelligent R/D decoder circuit plate 6 and carries out conversion of signals, and the angle bit data after will change through output connector 19 is again exported.Wherein, Revolve and connect rotary transformer 2 on the left end seam that becomes support 1; Revolve and become rotor 3 and be installed in through expansion set 11 and form the swelling connection on the scrambler axle sleeve 13; Revolve set 4 and revolved and become support 1 and become cover 8 firm being fixed on and revolve and become support 1 inside, revolve and become cover 8 and revolve change support left end bolt and be connected with revolving; Revolve two seams of right-hand member that become support 1 and be bumped into high-speed bearing 15 and bearing cap 12, bearing cap 12 with revolve change support 1 screw and be connected; Described scrambler axle sleeve 13 is enclosed within on the resolving encoder insulation adaptive shaft 9 or directly is enclosed within on the equipment axis of big rotor axle head 10;
Shown in Fig. 1 and Fig. 1 a, described scrambler axle sleeve 13 profiles are microscler pipe, and material selection high-quality stainless steel after heat treatment has very high rigidity.Scrambler axle sleeve 13 right sides are axial open loop structure; And thrust collar 20 with outside raised structures; The plane, left side of thrust collar 20 is near high-speed bearing 15, and thrust collar 20 can effectively overcome from the nonstandard operation of installation process and to scrambler axle sleeve 13 right sides generation larger axis to power.Scrambler axle sleeve 13 left sides are processed with ring-shaped groove 21, and circlip for shaft 22 is stuck in the groove 21, produce the left-hand displacement in order to overcome scrambler axle sleeve 13.The thrust collar 20 of above-mentioned scrambler axle sleeve 13 and the part between the ring-shaped groove 21 are installed in to revolve and become between cover 8 and the bearing cap 12, and the outer rim of the two ends port part of scrambler axle sleeve 13 is processed into reducing 23, and binding ring 14 is sleeved in the reducing 23.After said scrambler axle sleeve 13 is sleeved on the resolving encoder insulation adaptive shaft 9, locked on resolving encoder insulation adaptive shaft 9 by tightly of the clamping screw 24 of adjustment binding ring 14, scrambler axle sleeve 13.Said scrambler axle sleeve 13 with revolve become cover 8, bearing cap 12 is designed to the axial labyrinth seal structure respectively at the rotation engagement, prevents that effectively dust, water from drenching, the intrusion of rotten gas.Need not use under the situation of resolving encoder insulation adaptive shaft 9, scrambler axle sleeve 13 can directly be sleeved on the equipment axis of big rotor axle head 10.
The mechanism of above-mentioned binding ring 14 is shown in Fig. 1 b, and binding ring 14 profiles are for there being certain thickness open loop annulus, and internal diameter is sleeved in the reducing 23.One side at radial center place, binding ring 14 top open loops, 27 position is that cylinder counterbore 25, one sides are threaded hole 26, and clamping screw 24 is spun in cylinder counterbore 25 and the threaded hole 26.The side that binding ring 14 bottoms and open loop 27 are relative is processed with small sircle hole 28 vertically and communicates with the internal diameter of binding ring 14, thereby makes binding ring 14 have elasticity.The quantity of described small sircle hole 28 is preferably three, and the center of circle of one of them small sircle hole 28 and open loop 27 are located on the same line.After said scrambler axle sleeve 13 is sleeved on the resolving encoder insulation adaptive shaft 9, locked on resolving encoder insulation adaptive shaft 9 by tightly of the clamping screw 24 of adjustment binding ring 14, scrambler axle sleeve 13.
Revolve change rotor 3 and be installed on the scrambler axle sleeve 13 through expansion set 11, expansion set 11 material selection high-quality stainless steels, like Fig. 1 c, expansion set 11 is divided into three sections A, B, C, and middle B section is longer, and profile is open loop, and the internal diameter two ends are the awl mouth.Both sides A, C section are short slightly, and profile is open loop, and a side band seam of A, C section becomes rotor 3 in order to block to revolve, and the opposite side external diameter is awl mouthful, and connect with the awl tone at the internal diameter two ends of middle B section.Become support 1 and become cover 8 and assemble when being connected when revolving with revolving; The axial force that produces is through high-speed bearing 15, and the B section outer shroud in the middle of making swells, and ring dwindles in both sides A, the C section; Thereby make expansion set 11, revolve become rotor 3, scrambler axle sleeve 13 forms swellings and connects, and loosening skidding.Also directly glue is solid on scrambler axle sleeve 13 to revolve change rotor 3.
Revolve change support 1 profile and be annular, material selection high-quality stainless steel or light-duty alloy aluminum, the center is a through hole; As shown in Figure 1; Revolving the right side that becomes support 1 has two rank seams, and in order to be bumped into high-speed bearing 15 and bearing cap 12, the left side seam is bumped into and revolves set 4; Seam outer disk in left side is drilled with equally distributed six bolt blind holes; The cylindrical of blind hole is processed with o-ring groove, and six bolt blind holes are revolved in order to connection and become cover 8, should in groove, lay O-ring seal when revolving to become support 1 and revolve to become when cover 8 attaches together.Revolve change support 1 and radially be drilled with cable-through hole, in order to be connected to the RS connecting line 5 of rotary transformer 2 on the intelligent RD decoder circuit plate 6.
Revolve change cover 8 profiles and be annular; Material selection high-quality stainless steel or light-duty alloy aluminum, center are through hole, and there are two rank seams on the right side; In order to be bumped into high-speed bearing 15 and to revolve set 4; Left side cylindrical seam can embed customized flange assembly 17, and seam outer disk in left side is drilled with equally distributed six bolt blind holes 18 and six cylinder counterbores, and six bolt blind holes 18 are in order to connect customized flange assembly 17; Six cylinder counterbores revolve in order to connection and become support 1, make to revolve to become support 1 and revolve change cover 8 bolts and be connected.
RD terminal box 7; Material selection high-quality stainless steel or light-duty alloy aluminum; Profile is the rectangular parallelepiped that has loam cake, and the opposite face of loam cake is processed into arcwall face, becomes support 1 and to revolve the external diameter circular arc that becomes cover 8 consistent with revolving; The arcwall face of RD terminal box 7 becomes support 1 and becomes cover 8 screws and be connected with revolving with revolving, or with to revolve change support 1 affixed.Output connector 19 be fixed on the RD terminal box 7 and with resolving encoder insulation adaptive shaft axis normal or parallel.Intelligence RD decoder circuit plate 6 is by the firm inside that is installed in RD terminal box 7, and with 7 insulation of RD terminal box.
After accomplishing, all component-assembled just constituted small-sized integrated high reliability, high-precision tubular shaft heavy duty resolving encoder product.Be sleeved on tubular shaft heavy duty resolving encoder on the scrambler insulation adaptive shaft 9, then with binding ring 14 locking scrambler axle sleeves 13.The left end flange of scrambler insulation adaptive shaft 9 is connected with big rotor axle head 10.And the supporting role that scrambler moment support 16 only plays the tubular shaft resolving encoder.Under the situation that need not use scrambler moment support 16 and scrambler insulation adaptive shaft 9; Tubular shaft heavy duty resolving encoder can be directly installed on big rotor axle head 10 equipment axis; Use customized flange assembly 17 right sides to be connected with tubular shaft heavy duty resolving encoder then, left end is connected with equipment axis seam end face.
Said intelligent R/D decoding circuit plate 6 provides the sinusoidal excitation power supply for rotary transformer 2; Rotary transformer 2 is under the effect of field power supply; Revolve set 4 and form stator field; Revolving to become has the mutually orthogonal winding of two covers on the rotor 3, this two covers winding construction is identical, on these two mutually orthogonal windings, induces the angle signal that becomes the sine and cosine relation with corner respectively.This cosine and sine signal is passed to intelligent R/D decoding circuit plate 6 through the RS connecting line 5 of rotary transformer 2; By intelligent R/D decoding circuit plate 6 with this cosine and sine signal convert that digital quantity is parallel into, serial output, analog quantity 4-20mA output, field-bus interface and EPA output, to satisfy the various needs of Industry Control.
See also shown in Figure 2; Intelligence R/D decoding circuit plate 6 is provided with R/D (shaft angle-numeral) decoding chip 601, D/A conversion chip 602, electric power management circuit 603, long line transmission chip for driving 604, dsp chip 608, EPA module 609, ProfiBus-DP module 610, CAN bus module 611 and SSI module 612, is provided with anti-jamming circuit 607, electrical isolation chip 605 and reverse-connection protection circuit 606 in addition.The function of intelligence R/D decoding circuit plate 6 comprises: high power position (10,12,14,16) shaft angle-digital decoding and line output, serial output, analog quantity 4-20mA output, field-bus interface and EPA output.All above-mentioned chips are special-purpose integrated chip.R/D decoding chip 601 provides field power supply for rotary transformer 2, and the cosine and sine signal of said R/D decoding chip 601 transformers of spinning in the future 2 converts digital signal into; D/A conversion chip 602 converts this digital signal to the analog quantity output of 4-20mA; Long line transmission chip for driving 604 can realize the long Distance Transmission problem of signal, and to be used to export digital quantity be that output of D0-D15 parallel port and serial ports are exported; 605 of electrical isolation chips are in order to prevent the interference of power supply and outer bound pair circuit; Said long line transmission chip for driving 604 is output as output of digital quantity parallel port and serial ports output; Electric power management circuit 603 provides its required power supply for each integrated chip; 607 of reverse-connection protection circuit 606 and anti-jamming circuits are for electric power management circuit 603 reverse connecting protection and jamproof function to be provided; Dsp chip 608 is through the serial ports output receiving digital signals of long line transmission chip for driving 604; Dsp chip 608 extends out bus through it and is connected with ProfiBus-DP module 610 with EPA module 609, realizes the interface output of fieldbus and EPA; Dsp chip 608 links to each other with SSI module 612 with CAN bus module 611, realizes the function of output of CAN bus and synchronous serial interface.Thereby realize the integrated small design of networked, satisfy the needs of modernization industry control and communication.
Claims (10)
1. tubular shaft heavy duty resolving encoder; It is characterized in that: mainly comprise scrambler axle sleeve, binding ring, rotary transformer, revolve and become rotor, revolve set, revolve and become support, revolve and become cover, RD terminal box, intelligent R/D decoder circuit plate, output connector, expansion set, high-speed bearing and bearing cap; Described revolving on the left end seam that becomes support connects rotary transformer, revolves to become rotor and be installed in coder shaft and put; Revolve set and revolved and become support and become firm being fixed on of cover and revolve the change base inner, revolve and become support and revolve change cover bolt seals and be connected with revolving; Revolve the right-hand member two rank seams that become support and be bumped into high-speed bearing and bearing cap, bearing cap with revolve change support screw and be connected; The coder shaft cover is sleeved on the right-hand member of resolving encoder insulation adaptive shaft, and then with binding ring locking, the left end flange of resolving encoder insulation adaptive shaft is connected with big rotor axle head; RD terminal box screw is connected to revolve and becomes cover and revolve on the change support; Perhaps only with revolve that to become support affixed; Intelligent R/D decoding circuit plate is equipped with in RD terminal box inside, and the output connector is equipped with in the outside, and rotary transformer is connected with intelligent R/D decoding circuit plate through the RS connecting line.
2. tubular shaft heavy duty resolving encoder according to claim 1 is characterized in that: described tubular shaft heavy duty resolving encoder guarantees that through a scrambler moment stent support scrambler has a stable reference field.
3. tubular shaft heavy duty resolving encoder according to claim 1, it is characterized in that: described scrambler axle sleeve profile is microscler pipe, the thrust collar of the oriented outer process structure in scrambler axle sleeve right side, the plane, left side of thrust collar is near high-speed bearing; Scrambler axle sleeve left side is processed with ring-shaped groove, and circlip for shaft is stuck in the groove; The outer rim of the two ends port part of scrambler axle sleeve is processed into reducing, and binding ring is sleeved in the reducing.
4. tubular shaft according to claim 1 heavy duty resolving encoder is characterized in that: described scrambler axle sleeve with revolve become cover, bearing cap is designed to the axial labyrinth seal structure respectively at the rotation engagement.
5. tubular shaft heavy duty resolving encoder according to claim 1, it is characterized in that: described binding ring profile is for there being certain thickness open loop annulus, and internal diameter is sleeved in the reducing of scrambler axle sleeve; One side at radial center place, open loop position, binding ring top is the cylinder counterbore, and a side is a threaded hole, and clamping screw is spun in cylinder counterbore and the threaded hole; The binding ring bottom is processed with small sircle hole vertically and communicates with internal diameter.
6. tubular shaft heavy duty resolving encoder according to claim 1 is characterized in that: the described direct glue of change rotor that revolves puts in coder shaft admittedly, perhaps is fixed on coder shaft through expansion set and puts; Said expansion set is divided into three sections, and interlude is longer, and profile is open loop; The internal diameter two ends are the awl mouth, and the both sides section is short slightly, and a side band seam of both sides section revolves the change rotor in order to block; The opposite side external diameter is awl mouthful, and connects with the awl tone at the internal diameter two ends of interlude.
7. tubular shaft heavy duty resolving encoder according to claim 1; It is characterized in that: the described change support profile of revolving is annular, and the center is a through hole, and revolving the right side that becomes support has two rank seams; Seam outer disk in left side is drilled with equally distributed tapped blind hole; The cylindrical of tapped blind hole is processed with o-ring groove, and tapped blind hole revolves the change cover in order to connection, revolves the change support and radially is drilled with cable-through hole.
8. tubular shaft heavy duty resolving encoder according to claim 7 is characterized in that: described revolving becomes support and revolves the change cover when attaching together, and in groove, lays O-ring seal.
9. tubular shaft heavy duty resolving encoder according to claim 1; It is characterized in that: described RD terminal box profile is the rectangular parallelepiped that has loam cake; The opposite face of loam cake is processed into arcwall face; Become support and to revolve the external diameter circular arc that becomes cover consistent with revolving, the arcwall face of RD terminal box with revolve that to become support affixed, perhaps be connected to revolve and become support and become on the cover with revolving with screw.
10. tubular shaft heavy duty resolving encoder according to claim 1 is characterized in that: output connector installation position and resolving encoder insulation adaptive shaft axis normal or parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203704639U CN202329650U (en) | 2010-09-28 | 2011-09-28 | Heavy-duty rotary-transformer encoder with hollow shaft |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010294609 CN101975592A (en) | 2010-09-28 | 2010-09-28 | Hollow shaft heavy-load rotary transformer encoder |
| CN201010294609.6 | 2010-09-28 | ||
| CN2011203704639U CN202329650U (en) | 2010-09-28 | 2011-09-28 | Heavy-duty rotary-transformer encoder with hollow shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202329650U true CN202329650U (en) | 2012-07-11 |
Family
ID=43575493
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010294609 Pending CN101975592A (en) | 2010-09-28 | 2010-09-28 | Hollow shaft heavy-load rotary transformer encoder |
| CN2011203704639U Expired - Fee Related CN202329650U (en) | 2010-09-28 | 2011-09-28 | Heavy-duty rotary-transformer encoder with hollow shaft |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010294609 Pending CN101975592A (en) | 2010-09-28 | 2010-09-28 | Hollow shaft heavy-load rotary transformer encoder |
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| Country | Link |
|---|---|
| CN (2) | CN101975592A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926265A (en) * | 2012-10-30 | 2013-02-13 | 无锡市洪成造纸机械有限公司 | Positioning structure for roll head of papermaking profiling roll |
| CN108036813B (en) * | 2017-12-23 | 2020-04-21 | 马鞍山钢铁股份有限公司 | Automatic detection method for slipping of motor encoder catcher |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201957U (en) * | 1987-03-23 | 1988-08-31 | 长春第一汽车制造厂 | Clamp for machining outside circularity of cylinder sleeve of motor |
| JP2007085925A (en) * | 2005-09-22 | 2007-04-05 | Kurimoto Ltd | Rotational position detector for crank press |
| CN2874431Y (en) * | 2005-12-13 | 2007-02-28 | 连云港杰瑞电子有限公司 | Integrated rotary change coder |
| CN101226066B (en) * | 2008-01-25 | 2010-06-02 | 连云港杰瑞电子有限公司 | Multiple-loop absolute type rotary encoder based on rotating transformer |
| CN201373750Y (en) * | 2009-01-23 | 2009-12-30 | 长春市汇通电子有限责任公司 | Locking ring of photoelectric encoder |
| CN201378060Y (en) * | 2009-04-15 | 2010-01-06 | 北京金自天正智能控制股份有限公司 | Motor shaft hollow shaft rotary encoder |
| CN101750106B (en) * | 2009-12-25 | 2011-04-20 | 北京金自天正智能控制股份有限公司 | Heavy load absolute type multi-ring resolving encoder |
-
2010
- 2010-09-28 CN CN 201010294609 patent/CN101975592A/en active Pending
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2011
- 2011-09-28 CN CN2011203704639U patent/CN202329650U/en not_active Expired - Fee Related
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| CN101975592A (en) | 2011-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20140928 |
|
| EXPY | Termination of patent right or utility model |