CN201917317U - Position detector of electric executing mechanism - Google Patents
Position detector of electric executing mechanism Download PDFInfo
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- CN201917317U CN201917317U CN2010206613887U CN201020661388U CN201917317U CN 201917317 U CN201917317 U CN 201917317U CN 2010206613887 U CN2010206613887 U CN 2010206613887U CN 201020661388 U CN201020661388 U CN 201020661388U CN 201917317 U CN201917317 U CN 201917317U
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- encoder
- transmission shaft
- executing mechanism
- photoelectricity absolute
- turn
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Abstract
The utility model provides a position detector of an electric executing mechanism, which belongs to a shaft angle and displacement sensor. A structure with double types of encoders is adopted, a multi-circle photoelectric absolute value encoder with high power consumption and high precision is adopted, and a magnetic encoder with low power consumption and low precision is also adopted. Because of the adoption of the double-encoder design, the problem of position detection precision of the electric executing mechanism is solved, the goal that the electric executing mechanism can continuously do position detection when any one encoder fails is also realized, and the normal work of the electric executing mechanism is ensured. Meanwhile, because the magnetic encoder with low power consumption is adopted, the goal that the executing mechanism can still normally detect and track the position change is ensured under the condition of power failure of a main power supply. Thereby, the position detector has the advantages that when the position control precision of the electric executing mechanism is improved, the reliability of the electric executing mechanism is also improved.
Description
Technical field
The utility model relates to a kind of position detecting device of electric operator, belongs to a kind of shaft angle and displacement transducer.
Background technology
Electric operator is the performance element in the industrial automation instrument. it can accept the control signal of instrument systems such as self tuning regulator, industrial computer, DCS, computing machine, use motor and reduction gear to come fluid machineries such as mobile valve and gate, realize the positioning function of topworks.Electric operator is an indispensable main device of forming automatic control system.
The function of the position detecting device of electric operator provides position signalling accurately.Many employing conductive plastic potentiometers in traditional electric operator, but it has the contact, the life-span also can not be very long, and precision is not high yet.Recently also have and use contactless multi-turn photoelectricity absolute value encoder, but because the power consumption of photoelectricity absolute type encoder is bigger, usually reach the power consumption of hundreds of milliwatt, therefore after the primary power power down, can't allow microprocessor read the change in location of electric operator in real time by powered battery.Simultaneously because the position probing of electric operator is its most important function, and when the position detection part went wrong, electric operator need quit work, this will have influence on the operation of whole process industry system.Therefore, adopt multi-turn photoelectricity absolute value encoder to realize that the position probing of electric operator can't satisfy the request for utilization of electric operator merely.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of position detecting device of electric operator, comprises multi-turn photoelectricity absolute value encoder, individual pen photoelectricity absolute value encoder;
Described individual pen photoelectricity absolute encoder comprises transmission shaft 7, decoder module 6b and code-disc 6a; Code-disc 6a is fixed on the transmission shaft 7 and with transmission shaft 7 and rotates, the light hole that forms by certain coding rule is arranged on the code-disc 6a, photoelectric probe on the decoder module 6b is aimed at the lane place on the code-disc 6a, current location on the code-disc 6a is formed coding, according to the difference that code-disc is selected, this device can be divided into 8192～131072 absolute positions with 360 ° that individual pen rotates; This transmission shaft 7 is bearing in the bearing 3 of scrambler base 4, and bearing 3 is fixed in the bearing seat 2, by this bearing seat 2 this device is fixed in the electric operator housing inner chamber; The transmission shaft front end is connected with an end fixing coaxial of bevel gear shaft 1, and the other end of bevel gear shaft 1 is provided with bevel gear, the conical gear engagement of the output shaft of bevel gear and electric operator;
Described multi-turn photoelectricity absolute encoder 8 is positioned at this individual pen photoelectricity absolute encoder rear, is fixed on the scrambler base 4 with four fixed legs 9.Transmission shaft 7 passes on the axle body of multi-turn photoelectricity absolute encoder 8 pinion wheel is set, the input gearing mesh of this pinion wheel and this multi-turn photoelectricity absolute encoder 8, under the drive of the rotation of transmission shaft 7, this multi-turn photoelectricity absolute encoder 8 is imported decoding circuit plate 5 with the rotating cycle of this transmission shaft 7 coding in the lump together with the coding that individual pen photoelectricity absolute encoder decoder module 6b produces, and is integrated into one by the controller on the decoding circuit plate 5 and comprises the number of turns and rotation angle information outputs in the microprocessor at 25～30 interior codings;
It is characterized in that: also be provided with magnetic encoder, described magnetic encoder comprises magnet ring parts 12 and magnetic induction coding circuit plate 11, described magnet ring parts be fixed on transmission shaft foremost and with the coaxial rotation of transmission shaft, 6 cylinder type neodymium iron boron magnet every 60 ° of installations are housed in the magnet ring parts 12, and the N utmost point and the S of the magnet of being separated by are extremely reciprocal; Magnetic induction coding circuit plate 11 is between magnet ring parts 12 and multi-turn photoelectricity absolute encoder, and be fixed on the multi-turn photoelectricity absolute encoder 8 by four packing rings 10, be separated by 90 ° on the magnetic induction coding circuit plate 11 two US1881 Hall switch are housed, can the reaction magnetic ring parts rotation and the change in polarity of the magnet that brings, the coded pulse that outgoing position changes, being separated by 90 ° has a dry-reed tube switch, the power supply break-make when being used to control powered battery again.
The utlity model has following beneficial effect:
1. being that encoder section of the present utility model adopts is contactless, does not therefore have any mechanical wear.The serviceable life of extended position pick-up unit and reliability greatly.
2. encoder section of the present utility model has adopted multi-turn photoelectricity absolute value encoder, can detect the most nearly 31 absolute position, this can improve the position detection accuracy of electric operator greatly, when particularly electric operator is applied on gate and the large bore valves, can guarantee position control accuracy.
3. encoder section of the present utility model has also comprised the magnetic encoder of low-power consumption, has guaranteed under the situation of primary power power down, and when using powered battery, topworks still can normally detect and follow the tracks of and the display position variation.
4. encoder section of the present utility model has adopted the design of double-type scrambler, when also having solved electric operator any one scrambler having broken down therein, can also continue position probing, guarantee the operate as normal of electric operator, improve the reliability of electric operator under any operating mode.
Below with reference to accompanying drawing concrete structure of the present utility model and technique effect are described further, to set forth the purpose of this utility model, feature and effect fully.
Description of drawings
Fig. 1 is the structural representation of specific embodiment of the utility model;
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, coded portion of the present utility model comprises individual pen photoelectricity absolute encoder, multi-turn photoelectricity absolute encoder and magnetic encoder.
Individual pen photoelectricity absolute encoder comprises transmission shaft 7, decoder module 6b and code-disc 6a; Code-disc 6a is fixed on the transmission shaft 7 and with transmission shaft 7 and rotates, the light hole that forms by certain coding rule is arranged on the code-disc 6a, photoelectric probe on the decoder module 6b is aimed at the lane place on the code-disc 6a, current location on the code-disc 6a is formed coding, according to the difference that code-disc is selected, this device can be divided into 8192～131072 absolute positions with 360 ° that individual pen rotates; This transmission shaft 7 is bearing in the bearing 3 of scrambler base 4, and bearing 3 is fixed in the bearing seat 2, by this bearing seat 2 this device is fixed in electric operator (such as electric device for valve) the housing inner chamber.The transmission shaft front end is connected with an end fixing coaxial of bevel gear shaft 1, and the other end of bevel gear shaft 1 is provided with bevel gear, and speed increasing gear train is formed in the conical gear engagement of the output shaft of bevel gear and electric operator, and speed increasing ratio is decided by concrete accuracy requirement.
This multi-turn photoelectricity absolute encoder 8 is positioned at this individual pen photoelectricity absolute encoder rear, is fixed on the scrambler base 4 with four fixed legs 9.Transmission shaft 7 passes on the axle body of multi-turn photoelectricity absolute encoder 8 pinion wheel is set, the input gearing mesh of this pinion wheel and this multi-turn photoelectricity absolute encoder 8, under the drive of the rotation of transmission shaft 7, this multi-turn photoelectricity absolute encoder 8 is imported decoding circuit plate 5 with the rotating cycle of this transmission shaft 7 coding in the lump together with the coding that individual pen photoelectricity absolute encoder decoder module 6b produces, and is integrated into one by the controller on the decoding circuit plate 5 and comprises the number of turns and rotation angle information outputs in the microprocessor at 25～30 interior codings.Surpass single in the past axle position scrambler because the capacity of the utility model coding is crossed, therefore can support the electric operator output shaft to rotate 1024 circles, simultaneously the position of valve and the signal of stroke are accurately exported.
Among Fig. 1, except above-mentioned individual pen photoelectricity absolute encoder and multi-turn photoelectricity absolute encoder 8, also be provided with magnetic encoder, described magnetic encoder comprises magnet ring parts 12 and magnetic induction coding circuit plate 11, described magnet ring parts be fixed on transmission shaft foremost and with the coaxial rotation of transmission shaft, 6 cylinder type neodymium iron boron magnet every 60 ° of installations are housed in the magnet ring parts 12, and the N utmost point and the S of the magnet of being separated by are extremely reciprocal; Magnetic induction coding circuit plate 11 is between magnet ring parts 12 and multi-turn photoelectricity absolute encoder, and be fixed on the multi-turn photoelectricity absolute encoder 8 by four packing rings 10, be separated by 90 ° on the magnetic induction coding circuit plate 11 two US1881 Hall switch are housed, can the reaction magnetic ring parts rotation and the change in polarity of the magnet that brings, the coded pulse that outgoing position changes, being separated by 90 ° has a dry-reed tube switch, the power supply break-make when being used to control powered battery again.
Individual pen photoelectricity absolute value encoder is used for gathering the interior angular rate signal of singly turn-taking, the multi-turn absolute value encoder is used to gather several detection signal of turn-taking, the coding of this two photoelectricity part inputs to microprocessor after by decoding circuit plate 5, microprocessor can be gathered the variation of absolute position in real time like this, after primary power source de-energizes, this scrambler quits work, but still follows the tracks of the change in location of electric operator on the absolute position.
Magnetic encoder rotates by Hall switch identification magnet ring parts and produces pulse output, microprocessor passes through acquisition pulse, realize the collection of positional change even, rotate by the tongue tube reaction magnetic ring in addition, determine after primary power source de-energizes, whether rotating shaft rotates, and in a single day rotating shaft rotates, and responds to by tongue tube, open the powered battery switch, microprocessor opening entry change in location does not collect in a period of time under the situation of change in location at microprocessor, sends order, turn-off powered battery, like this can maximized saving power consumption, maximization prolongs battery working time, guarantees the position probing after the primary power power down.Therefore the design of double-type scrambler had both improved reliability, and the function that can display position changes also is provided under the power loss condition still.
Owing to adopted the design of double-type scrambler, both solved the position detection accuracy problem of electric operator, when also having solved electric operator any one scrambler breaking down therein, can also continue position probing, guarantee the operate as normal of electric operator; Owing to adopted the magnetic encoder of low-power consumption, guaranteed also under the situation of primary power power down that simultaneously topworks still can normally detect tracing positional and change.Therefore the utility model can improve the reliability of electric operator under any operating mode when improving the electric operator position control accuracy.
In sum, be a kind of preferred embodiment of the present utility model described in this instructions.All technician in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in claim protection domain of the present utility model.
Claims (1)
1. the position detecting device of an electric operator comprises multi-turn photoelectricity absolute value encoder, individual pen photoelectricity absolute value encoder;
Described individual pen photoelectricity absolute encoder comprises transmission shaft (7), decoder module (6b) and code-disc (6a); Code-disc (6a) is fixed on transmission shaft (7), and the light hole that forms by certain coding rule is arranged on the code-disc (6a), and the photoelectric probe on the decoder module (6b) is aimed at the lane place on the code-disc (6a); This transmission shaft (7) is bearing in the bearing (3) of scrambler base (4), and bearing (3) is fixed in the bearing seat (2), by this bearing seat (2) this device is fixed in the electric operator housing inner chamber; Transmission shaft (7) front end is connected with an end fixing coaxial of bevel gear shaft (1), and the other end of bevel gear shaft (1) is provided with bevel gear, the conical gear engagement of bevel gear and electric operator output shaft;
Described multi-turn photoelectricity absolute encoder (8) is positioned at individual pen photoelectricity absolute encoder rear, the input gear of multi-turn photoelectricity absolute encoder (8) and the pinion of passing on wherein transmission shaft (7) axle body;
It is characterized in that: also be provided with magnetic encoder, described magnetic encoder comprises magnet ring parts (12) and magnetic induction coding circuit plate (11), described magnet ring parts be fixed on transmission shaft foremost and with the coaxial rotation of transmission shaft, 6 cylinder type neodymium iron boron magnet every 60 ° of installations are housed in the magnet ring parts (12), and the N utmost point and the S of the magnet of being separated by are extremely reciprocal; Magnetic induction coding circuit plate (11) is positioned between magnet ring parts (12) and the multi-turn photoelectricity absolute encoder, and be fixed on the multi-turn photoelectricity absolute encoder (8) by four packing rings (10), be separated by 90 ° on the magnetic induction coding circuit plate (11) change in polarity of the magnet that the rotation of two reaction magnetic ring parts is housed and brings and the US1881 Hall switch of the coded pulse that outgoing position changes, being separated by 90 ° also is provided with the dry-reed tube switch of a power supply break-make when being used to control powered battery again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206613887U CN201917317U (en) | 2010-12-15 | 2010-12-15 | Position detector of electric executing mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206613887U CN201917317U (en) | 2010-12-15 | 2010-12-15 | Position detector of electric executing mechanism |
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| CN201917317U true CN201917317U (en) | 2011-08-03 |
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| CN2010206613887U Expired - Lifetime CN201917317U (en) | 2010-12-15 | 2010-12-15 | Position detector of electric executing mechanism |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109361A (en) * | 2010-12-15 | 2011-06-29 | 天津埃柯特阀门控制设备有限公司 | Position detection device for electric executing mechanism |
| CN102736026A (en) * | 2012-07-16 | 2012-10-17 | 无锡市凯旋电机有限公司 | Service life testing device for motor-operated mechanism |
| CN106595729A (en) * | 2016-12-14 | 2017-04-26 | 济南轲盛自动化科技有限公司 | Display device-equipped encoder |
| CN107127362A (en) * | 2017-06-19 | 2017-09-05 | 宁波友智机械科技有限公司 | A kind of lathe process sync detection device |
| CN107367289A (en) * | 2017-08-10 | 2017-11-21 | 银弗（北京）科技有限公司 | A kind of multi-turn absolute value encoder and its method of work |
| CN109029511A (en) * | 2018-07-25 | 2018-12-18 | 苏州少士电子科技有限责任公司 | A kind of dual coding high-precision magnetic coder and the motor with it |
| CN113847934A (en) * | 2021-09-24 | 2021-12-28 | 深圳市灵犀自动化技术有限公司 | Position determination method and device of hybrid encoder |
| CN114623849A (en) * | 2022-03-10 | 2022-06-14 | 朝阳市加华电子有限公司 | Novel photoelectric encoder modularization code wheel |
-
2010
- 2010-12-15 CN CN2010206613887U patent/CN201917317U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109361B (en) * | 2010-12-15 | 2012-02-01 | 天津埃柯特测控技术有限公司 | Position detection device for electric executing mechanism |
| CN102109361A (en) * | 2010-12-15 | 2011-06-29 | 天津埃柯特阀门控制设备有限公司 | Position detection device for electric executing mechanism |
| CN102736026A (en) * | 2012-07-16 | 2012-10-17 | 无锡市凯旋电机有限公司 | Service life testing device for motor-operated mechanism |
| CN102736026B (en) * | 2012-07-16 | 2015-07-08 | 无锡市凯旋电机有限公司 | Service life testing device for motor-operated mechanism |
| CN106595729A (en) * | 2016-12-14 | 2017-04-26 | 济南轲盛自动化科技有限公司 | Display device-equipped encoder |
| CN107127362B (en) * | 2017-06-19 | 2019-07-02 | 宁波友智机械科技有限公司 | A kind of lathe process sync detection device |
| CN107127362A (en) * | 2017-06-19 | 2017-09-05 | 宁波友智机械科技有限公司 | A kind of lathe process sync detection device |
| CN107367289A (en) * | 2017-08-10 | 2017-11-21 | 银弗（北京）科技有限公司 | A kind of multi-turn absolute value encoder and its method of work |
| CN107367289B (en) * | 2017-08-10 | 2019-11-29 | 前沿驱动（北京）技术有限公司 | A kind of multi-turn absolute value encoder and its working method |
| CN109029511A (en) * | 2018-07-25 | 2018-12-18 | 苏州少士电子科技有限责任公司 | A kind of dual coding high-precision magnetic coder and the motor with it |
| CN109029511B (en) * | 2018-07-25 | 2024-04-05 | 苏州少士新创电子科技有限公司 | Double-coding high-precision magnetic encoder and motor with same |
| CN113847934A (en) * | 2021-09-24 | 2021-12-28 | 深圳市灵犀自动化技术有限公司 | Position determination method and device of hybrid encoder |
| CN114623849A (en) * | 2022-03-10 | 2022-06-14 | 朝阳市加华电子有限公司 | Novel photoelectric encoder modularization code wheel |
| CN114623849B (en) * | 2022-03-10 | 2023-09-15 | 朝阳市加华电子有限公司 | Photoelectric encoder modularization code wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN AIKETE MEASURING + CONTROL TECHNOLOGY CO., Free format text: FORMER OWNER: TIANJIN AIKETE VALVE CONTROL EQUIPMENT CO., LTD. Effective date: 20110919 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300240 DONGLI, TIANJIN TO: 300384 NANKAI, TIANJIN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110919 Address after: 300384 Tianjin New Technology Industrial Park Haitai Development Road No. 12 two Patentee after: Tianjin Act Measurement & Control Technology Co., Ltd. Address before: 300240, Tianjin, Dongli District, Grand Industrial Park, Jin Ji speed north entrance Patentee before: Tianjin Act Valve Control Equipment CO., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110803 Effective date of abandoning: 20120201 |