CN102538835A - Non-contact annular magnetoelectric rotary encoder - Google Patents
Non-contact annular magnetoelectric rotary encoder Download PDFInfo
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- CN102538835A CN102538835A CN2010105961011A CN201010596101A CN102538835A CN 102538835 A CN102538835 A CN 102538835A CN 2010105961011 A CN2010105961011 A CN 2010105961011A CN 201010596101 A CN201010596101 A CN 201010596101A CN 102538835 A CN102538835 A CN 102538835A
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- rotary encoder
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Abstract
The invention discloses a sensor, and particularly relates to a non-contact annular magnetoelectric rotary encoder. The encoder comprises an annular encoder main body I, and an acquisition head II which is arranged correspondingly to the annular encoder body I, wherein a clearance is formed between the annular encoder main body I and the acquisition head II, the annular encoder main body I comprises a bearing ring body, a magnetic ring stuck and sleeved on the upper edge part of the bearing body, and a protecting cover arranged outside the bearing ring body and the magnetic ring and playing a role of protecting the magnetic ring; and a magnetic induction chip is arranged in the acquisition head II. The magnetoelectric principle is adopted by the encoder; the defects of easiness in cracking of a code disc, high requirement on precision, complex mechanical structure, complex mounting and adjusting process and the like of the traditional photoelectric encoder are overcome; the generation, the receiving and the processing of a signal are realized by selecting and using a magnetoelectric integrated chip; the complex debugging process of the traditional photoelectric encoder is omitted; the production efficiency and the performance of products are greatly improved; and the non-contact annular magnetoelectric rotary encoder which is small in size, high in reliability, resistant in vibration, high in frequency response, low in cost, high in precision, low in error and long in service life is provided.
Description
Technical field
The invention discloses a kind of sensor, a kind of specifically noncontact annular magnetoelectricity rotary encoder, this scrambler can be widely used in fields such as numerically-controlled machine, elevator industry, navigation, robotization, aviation, Electric Machine Control and industrial automation.
Background technology
Scrambler is a kind of rotating detector that angle displacement is converted to a succession of digit pulse.Its basic structure is made up of luminescent device, code-disc, slit, receiving element.When the rotation of coder shaft drive code-disc, the light that sends through light-emitting component is cut into interrupted light by code-disc, slit and is received the element reception, produces initialize signal, and this signal is exported signal after subsequent conditioning circuit is handled.The precision of rotary encoder depends on machinery and electric factor, and these factors have: the inexactness of optical disc eccentricity, bearing off-centre and opticator.Traditional photoelectric encoder is because its code-disc is generally glassware, and is frangible, aspect anti-vibration, has inborn shortcoming, and degree of protection is low, and operating temperature range is narrow, and-20
0C is to+50
0C, and code-disc when delineation accuracy requirement is high, and difficulty is big.Assembly cost is high, and production efficiency is low.Need main shaft and bearing on the structure, purchase cost is high.During assembly and adjustment for bearing, main shaft, main body, the cooperation between the optical device etc. is strict, difficulty is big reducing on the error, production efficiency is low.
Summary of the invention
The objective of the invention is to adopt the magnetoelectricity principle; Solve that traditional photoelectric encoder code-disc is frangible, accuracy requirement is high; Complicated in mechanical structure is debug shortcomings such as process is loaded down with trivial details, selects for use the magnetoelectricity integrated chip to realize the generation of signal; Receive and handle; Save the complicated debug process of traditional photo-electric, increase substantially production efficiency and performance of products, a kind of microminiaturization, reliability height, anti-vibration, high frequency sound, low cost, precision is high, error is little, the life-span is grown noncontact annular magnetoelectricity rotary encoder are provided.
The objective of the invention is to realize like this, this scrambler comprise circular encoder main body I and with circular encoder main body I between have the collection head II that gap, corresponding scrambler main body I are provided with; Described scrambler main body I comprises carries ring body, is posted in the magnetosphere that carries position, main body upper edge, is arranged on and carries ring body and the protective cover of protecting the magnetosphere effect is worked in the magnetosphere outside, is provided with the magnetic induction chip in the described collection head II.
Described magnetosphere requires through especially towards magnetic according to different pulses, and its periphery N along magnetosphere, S alternating polarity are provided with, and number is an even number.
Described collection head II comprises that loam cake, end face have the lower cover of brush, are arranged on the magnetic induction chip that is provided with on the inner circuit board of loam cake and lower cover, the circuit board.
Described brush is two, inserts respectively in the groove below the lower cover.
The present invention is owing to adopt said structure to have the following advantages:
1, adopt the hollow-core construction of large circle on the scrambler main body machinery profile of the present invention, no main shaft and bearing need not code-disc; Simplified physical construction greatly; Simultaneously also reduced purchase cost, adopted the noncontact design, precision is high, the life-span is long, reduce machine error.Select high-precision magnetic sensing chip 7 on its collection head circuit board for use, adopted the magneto-electric principle, can discern the angle position of the permanent magnetosphere that is positioned at the chip below; In have integrated circuit that it is handled; Can enroll different programs as required, realize different pulse number and phase relation, be that circuit is simple; Weight is little, uses lighter.
2, the invention solves that traditional photoelectric encoder code-disc is frangible, accuracy requirement is high, complicated in mechanical structure is debug shortcomings such as process complicacy.Select for use the magnetoelectricity integrated chip to carry out the generation of signal, receive and handle, saved the complicated debug process of traditional photo-electric; Has remarkable advantages; Increase substantially production efficiency, improved performance of products, have advantages such as microminiaturization, high reliability, anti-vibration, high frequency sound, low cost.
3, physical construction is simplified firm: need not code-disc and bearing, and main shaft, can be directly installed on survey on the object main shaft, can make the rotating speed of scrambler consistent with survey object rotating speed.Profile is lighter and handier, flexibly, the reliability of long-term work is provided.Design firmly, degree of protection is high, can be grease proofing, waterproof, dust protection etc., can reach IP64, and can resist high strength bump and vibrations.
4, flexibility and reliability, accurate: noncontact, nothing wearing and tearing design, even signal is still very stable under higher temperature, operating temperature range is wide ,-40
0C is to+125
0C.Multiple industry standard format output can be provided.Big array hall-effect sensor is arranged in chip,, guaranteed high-purity signal and precision in conjunction with point-device output signal.
5, enhance productivity: production debugging is convenient and swift; In special-purpose magnetoelectricity integrated chip is arranged; More intelligent, need in production debugging, not need the cost plenty of time remove to adjust the position relation between main body and circuit board, the optical device, ability picked up signal as traditional photo-electric structure.
Description of drawings
Fig. 1 is a noncontact annular magnetic electricity rotary encoder one-piece construction synoptic diagram.
Fig. 2 is circular encoder main body A of the present invention-A sectional view.
Fig. 3 is magnet ring periphery N, the S polarity distributed and arranged figure after magnetosphere launches on the circular encoder main body of the present invention.
Fig. 4 is the whole decomposition texture synoptic diagram of collection head of the present invention.
Fig. 5 is a noncontact annular magnetoelectricity rotary encoder principle of work block diagram of the present invention.
Embodiment
By accompanying drawing 1, shown in 2: this scrambler by circular encoder main body I and with circular encoder main body I between have collection head II two parts that gap, corresponding scrambler main body I be provided with and form, described scrambler main body I comprises carries ring body 1, is posted in the magnet ring 2 that carries position, main body 1 upper edge, is arranged on that rim bearing carries ring body 1 and the protective cover 3 that protection magnetosphere 2 acts on is played in magnetosphere 2 outsides.
Shown in accompanying drawing 3: described magnetosphere 2 requires through especially towards magnetic according to different pulses, and its periphery N along magnetosphere 2, S alternating polarity are provided with, and number is an even number.
Shown in accompanying drawing 4: described collection head II comprises that loam cake 4, end face have the lower cover 5 of brush 8, are arranged on the magnetic induction chip 7 that is provided with on the inner circuit board 6 of loam cake 4 and lower cover 5, the circuit board 6.
Described brush 8 adopts the wool felt quality, and two brushes 8 insert respectively in two grooves below the lower cover 5, so that can in time clear up the surface of protective cover 3 on the scrambler main body I in use, prevent that dust from exerting an influence to signal, prolong physical life.
Described circuit board 6 is fixed on the draw-in groove position of lower cover 5, and with the fluid sealant sealing, thereby the ability waterproof is grease proofing; Loam cake 4 has four corresponding sunk screw holes respectively with the lower end of lower cover 5, connects from lower cover 5 with long spiro nail, and collection head profile covers is consistent; The circuit board 6 that is arranged in the collection head body is in sealing state, can better be anti-interference, prolong utility time, and loam cake 4 leaves wire hole, is used for the signal transmission.
This invention has selected for use magnetic induction chip 7 to realize that signal receives and handles; Correspondent peripheral circuit is arranged around the magnetic induction chip 7; To further handling through the signal of magnetic induction chip output; This magnetic induction chip 7 can enroll different programs according to the needs of oneself, thus the gating pulse number, phase relation etc.Can different output forms be provided according to of the processing of user's needs through subsequent conditioning circuit.Circuit structure is simple, and stability is strong, and is high temperature resistant.Magnetic induction chip 7 place circuit boards later on can normal safe use in liquid medium with the fluid sealant sealing.
Shown in accompanying drawing 5: during use; Circular encoder main body I directly is fixed on the main shaft of measured object, and the collection head II is horizontally fixed on the circular encoder main body I outside, and both are in the same plane; Make between collection head II and circular encoder main body I and have certain clearance; Thereby the realization noncontact, friction-free design, the reliability of assurance long-term work.The present invention utilizes the magneto-electric induction principle; Through the rotation of magnetosphere 2 on the circular encoder main body I, send the magnetic strength signal of respective angles position from magnetosphere N, the S utmost point, the magnetic induction chip 7 that is provided with in the collection head II can receive and respond to the magnetic strength signal that magnetosphere 2 sends; The Hoare logic array is arranged in magnetic induction chip 7; Can accomplish the conversion of magnetoelectricity signal, this magnetoelectricity chip 7 is a kind of programming devices, can enroll corresponding program according to the needs of different pulses.Around magnetic induction chip 7, be provided with correspondent peripheral circuit, the signal from this chip output is carried out processing such as shaping, filtering, output.According to client's different demands, different subsequent conditioning circuits is set, different output forms is provided.
Claims (5)
1. noncontact annular magnetoelectricity rotary encoder is characterized in that: this scrambler comprise circular encoder main body (I) and with circular encoder main body (I) between have the collection head (II) that gap, corresponding scrambler main body (I) are provided with; Described scrambler main body (I) comprises carries ring body (1), is posted in the magnetosphere (2) that carries main body (1) position, upper edge, is arranged on rim bearing and carries ring body (1) and work the protective cover (3) of protecting magnetosphere (2) to act on magnetosphere (2) outside, is provided with magnetic induction chip (7) in the described collection head (II).
2. a kind of noncontact annular magnetoelectricity rotary encoder according to claim 1; It is characterized in that: described magnetosphere (2) requires through especially towards magnetic according to different pulses; Its periphery N along magnetosphere (2), S alternating polarity are provided with, and number is an even number.
3. a kind of noncontact annular magnetoelectricity rotary encoder according to claim 1 is characterized in that: described collection head (II) comprises that loam cake (4), end face have the lower cover (5) of brush (8), are arranged on loam cake (4) and the inner last magnetic induction chip (7) that is provided with of circuit board (6), circuit board (6) of lower cover (5).
4. a kind of noncontact annular magnetoelectricity rotary encoder according to claim 3, it is characterized in that: described brush (8) is the brush of two wool felt quality, inserts respectively in the following groove of lower cover (5).
5. a kind of noncontact annular magnetoelectricity rotary encoder according to claim 3, it is characterized in that: described circuit board (6) is fixed on the draw-in groove position of lower cover (5), and seals with fluid sealant; Loam cake (4) has four corresponding sunk screw holes respectively with the lower end of lower cover (5), connects from lower cover (5) with long spiro nail, and collection head profile covers is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105961011A CN102538835A (en) | 2010-12-20 | 2010-12-20 | Non-contact annular magnetoelectric rotary encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105961011A CN102538835A (en) | 2010-12-20 | 2010-12-20 | Non-contact annular magnetoelectric rotary encoder |
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| Publication Number | Publication Date |
|---|---|
| CN102538835A true CN102538835A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105961011A Pending CN102538835A (en) | 2010-12-20 | 2010-12-20 | Non-contact annular magnetoelectric rotary encoder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767957A (en) * | 2017-02-27 | 2017-05-31 | 张道勇 | Magnetic induction encoder Quick locating structure and installation method |
| CN108895955A (en) * | 2018-05-22 | 2018-11-27 | 江阴林格科技有限公司 | DVVA specialized compact hall displacement transducer and its assembly method |
| CN109708673A (en) * | 2019-01-17 | 2019-05-03 | 北京金钢科技有限公司 | Separate type magnetic coder based on pattern |
| CN113983935A (en) * | 2021-12-29 | 2022-01-28 | 太原向明智控科技有限公司 | Coal mining machine position coding and positioning device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1291660A2 (en) * | 2001-09-11 | 2003-03-12 | Koyo Seiko Co., Ltd. | Magnetic pulser ring, magnetizing device and method, and bearing unit having a magnetic pulser ring |
| CN2630798Y (en) * | 2003-01-30 | 2004-08-04 | 北京科大天宇微电子材料技术开发有限公司 | Huge magneto-resistance magnetic coder |
| CN1542410A (en) * | 2003-02-26 | 2004-11-03 | ��ǿ�ʽ | Rotary encoder |
| EP1536239A2 (en) * | 2003-11-28 | 2005-06-01 | Fuji Jukogyo Kabushiki Kaisha | Encoder structure |
| CN101652636A (en) * | 2007-04-24 | 2010-02-17 | 谐波传动系统有限公司 | Magnetic Encoder and Absolute Rotational Position Detection Method |
| CN201579419U (en) * | 2009-12-22 | 2010-09-15 | 西安腾达电器有限责任公司 | Magnetic encoder for spindle of machine tool |
| CN101832789A (en) * | 2009-02-24 | 2010-09-15 | W·梅纳特 | Absolute magnetic position encoder |
| CN201917349U (en) * | 2010-12-20 | 2011-08-03 | 长春荣德光学有限公司 | Non-contact annular magnetoelectric rotary encoder |
-
2010
- 2010-12-20 CN CN2010105961011A patent/CN102538835A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1291660A2 (en) * | 2001-09-11 | 2003-03-12 | Koyo Seiko Co., Ltd. | Magnetic pulser ring, magnetizing device and method, and bearing unit having a magnetic pulser ring |
| CN2630798Y (en) * | 2003-01-30 | 2004-08-04 | 北京科大天宇微电子材料技术开发有限公司 | Huge magneto-resistance magnetic coder |
| CN1542410A (en) * | 2003-02-26 | 2004-11-03 | ��ǿ�ʽ | Rotary encoder |
| EP1536239A2 (en) * | 2003-11-28 | 2005-06-01 | Fuji Jukogyo Kabushiki Kaisha | Encoder structure |
| CN101652636A (en) * | 2007-04-24 | 2010-02-17 | 谐波传动系统有限公司 | Magnetic Encoder and Absolute Rotational Position Detection Method |
| CN101832789A (en) * | 2009-02-24 | 2010-09-15 | W·梅纳特 | Absolute magnetic position encoder |
| CN201579419U (en) * | 2009-12-22 | 2010-09-15 | 西安腾达电器有限责任公司 | Magnetic encoder for spindle of machine tool |
| CN201917349U (en) * | 2010-12-20 | 2011-08-03 | 长春荣德光学有限公司 | Non-contact annular magnetoelectric rotary encoder |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767957A (en) * | 2017-02-27 | 2017-05-31 | 张道勇 | Magnetic induction encoder Quick locating structure and installation method |
| CN106767957B (en) * | 2017-02-27 | 2023-11-17 | 张道勇 | Quick positioning structure of magnetic induction encoder and installation method |
| CN108895955A (en) * | 2018-05-22 | 2018-11-27 | 江阴林格科技有限公司 | DVVA specialized compact hall displacement transducer and its assembly method |
| CN108895955B (en) * | 2018-05-22 | 2020-01-24 | 江阴林格科技有限公司 | Compact Hall displacement sensor special for DVVA and assembling method thereof |
| CN109708673A (en) * | 2019-01-17 | 2019-05-03 | 北京金钢科技有限公司 | Separate type magnetic coder based on pattern |
| CN113983935A (en) * | 2021-12-29 | 2022-01-28 | 太原向明智控科技有限公司 | Coal mining machine position coding and positioning device and method |
| CN113983935B (en) * | 2021-12-29 | 2022-05-17 | 太原向明智控科技有限公司 | Coal mining machine position coding and positioning device and method |
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Application publication date: 20120704 |