CN201177512Y - Absolute encoder - Google Patents
Absolute encoder Download PDFInfo
- Publication number
- CN201177512Y CN201177512Y CNU2008200740773U CN200820074077U CN201177512Y CN 201177512 Y CN201177512 Y CN 201177512Y CN U2008200740773 U CNU2008200740773 U CN U2008200740773U CN 200820074077 U CN200820074077 U CN 200820074077U CN 201177512 Y CN201177512 Y CN 201177512Y
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- code
- wheel
- circuit board
- shell
- encoder
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- Expired - Fee Related
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Abstract
The utility model provides an absolute type encoder. In the encoder, a hollow core axle and a small axle are both arranged on a shell, an input gear and three coding discs are arranged on the hollow core axle, two carry bit gears are arranged on the small axle, four photoelectric transmission-receiving boards are welded on a numeral conversion circuit board, which forms a set of circuit board component, and the circuit board component is arranged on a bottom cover; the bottom cover and a back cover in which the circuit boards are arranged are connected with the shell on which the coding discs were arranged by bolts; and two positioning steel balls are arranged in fixing holes of the shell and tightly pressed by spring leaves. The encoder of the utility model has the advantages of simple structure, big counting range, low cost and easy realization; moreover, the encoder is made of common metal materials and engineering plastics and electric elements easily bought in market, and manufactured by pressing pieces and injection pieces, so that the manufacturing cost is low.
Description
Technical field
The utility model relates to the scrambler field, is a kind of absolute type encoder specifically.
Background technology
Scrambler is a kind of device that angular displacement or straight-line displacement is converted to electric signal.Can be divided into increment type and absolute type two classes according to the principle of work scrambler.Incremental encoder is with the periodic electric signal of displacement conversion, again this electrical signal conversion is become count pulse, represents the size of displacement with the number of pulse.The corresponding definite numerical code in each position of absolute type encoder, therefore, its indicating value is only relevant with the initial sum final position of measuring.In electronic, pneumatic actuator, scrambler is used for the accurate measurement to the output shaft movement position, and feedback signal accurately is provided; Also can be used for reversible metering to the positive and negative revolution of object of various rotations, or the accurate measurement of rotational angle.
What use in a large number on the market now is incremental encoder.Though the incremental encoder structure is simpler, the individual pen umber of pulse is also abundant, special-purpose positive and negative reversible counting integrated circuit is also arranged, but it has a very big shortcoming, when having a power failure, can not remember original position exactly, especially changed the position of output shaft after power failure artificially as the people, system just is in general confusion when sending electricity again, so reserve battery must be arranged when using.
Absolute type encoder uses seldom, because its price is higher, single encoded device price has reached the cost price of corresponding topworks.Therefore a kind of simple in structure for the just necessary design of the digitizing that realizes topworks, cost is low, the scrambler that technology can realize.
The scrambler that can supply mostly adopts grating or magnetic grid technology on the market, must have special-purpose production equipment and material to produce though this technology is advanced, and production cost is high, has influenced promoting the use of of scrambler.
The utility model content
The purpose of this utility model is the deficiency that exists at the above scrambler, and a kind of absolute type encoder is provided, and has both enlarged counting region, has reduced cost, has also reduced code-disc quantity and has been easy to and produced.
The utility model absolute type encoder is achieved in that a kind of absolute type encoder, comprise input gear, code-wheel, two carry gears, positioning ball, spring leaf, circuit board assemblies, air-cored axis, little axle, shell, bonnet and bottoms, air-cored axis and little axle are installed in the enclosure respectively; On the little axle the first carry gear and the second carry gear are installed side by side; Air-cored axis is separately installed with first code-wheel, second code-wheel, the 3rd code-wheel and input gear; The input gear and first code-wheel are connected with a joggle, first code-wheel is connected with the first carry gearing mesh, the first carry gear and second code-wheel are connected with a joggle, and second code-wheel is connected with the second carry gearing mesh, and the second carry gear and the 3rd code-wheel are connected with a joggle; Circuit board assemblies sends dash receiver by four photoelectricity and a digital change-over circuit plate is formed, and four photoelectricity send dash receiver and are welded on the digital change-over circuit plate; Positioning ball is placed in the shell pilot hole, and compresses with spring leaf; Circuit board assemblies is installed on the bottom, and bottom and bonnet that circuit board is housed link together with screw and the inner shell that has installed code-wheel.
Described first code-wheel, second code-wheel, the 3rd code-wheel can be respectively arranged with two groups of five notches.
Described first code-wheel, second code-wheel, the 3rd code-wheel are separately positioned on photoelectricity and send between the dash receiver, photoelectricity sends dash receiver by the notch on the code-wheel, detected rotational position signal is delivered to digital change-over circuit, constantly send the serial Gray code of turned position by digital change-over circuit.
Described positioning ball can be provided with two.
The utility model adopts Gray code, makes whenever to advance one digit number and have only the one digit number sign indicating number to change, and has overcome general binary code, the shortcoming of easy output mistake when binary-coded decimal is read; Each code-disc has two groups of five notches, has enlarged counting region effectively, and three coded disc counting scopes can reach 0-32768; Used the mechanical counter bit method in addition, made novelty simple in structure.Generally speaking, the utility model is simple in structure, and cost is low, realizes can adopting common metal material and engineering plastics easily, uses the electronic component of easily purchasing on the market, adopts stamping parts and moulding production, and production drops into low.
Description of drawings
Fig. 1 cuts structural representation open for the longitudinal cross-section of a kind of absolute type encoder of the utility model;
Fig. 2 cuts structural representation open for the xsect of a kind of absolute type encoder of the utility model.
Embodiment
Below in conjunction with accompanying drawing and the concrete patent of implementing the utility model is described in detail.
A kind of absolute type encoder as depicted in figs. 1 and 2, comprises input gear 6, code-wheel (5,7,9), carry gear (3-1,3-2), positioning ball 14, spring leaf 15, circuit board assemblies, air-cored axis 8, little axle 4, shell 4, bonnet 1 and bottom 10.Air-cored axis 8 and little axle 4 are installed in the enclosure respectively; On the little axle 4 the first carry gear 3-1 and the second carry gear 3-2 are installed successively; Be separately installed with first code-wheel 5, second code-wheel 7, the 3rd code-wheel 9 and input gear 6 in the air-cored axis 8; The input gear 6 and first code-wheel 5 are connected with a joggle, first code-wheel 5 and the first carry gear 3-1 are connected with a joggle, the first carry gear 3-1 and second code-wheel 7 are connected with a joggle, second code-wheel 7 and the second carry gear 3-2 are connected with a joggle, and the second carry gear 3-2 and the 3rd code-wheel 9 are connected with a joggle; Circuit board assemblies sends dash receiver (11-1,11-2,11-3,11-4) by four photoelectricity and a digital change-over circuit plate 2 is formed, and four photoelectricity send dash receiver (11-1,11-2,11-3,11-4) and are fixedly welded on the digital change-over circuit plate 12; First code-wheel 5, second code-wheel 7, the 3rd code-wheel 9 are separately positioned on photoelectricity and send between the dash receiver (11-1,11-2,11-3,11-4), photoelectricity sends dash receiver (11-1,11-2,11-3,11-4) by the notch on the code-wheel, detected rotational position signal is delivered to digital change-over circuit 12, constantly send the serial Gray code of turned position by digital change-over circuit 12.Positioning ball 14 is placed in the shell pilot hole, and compresses with spring leaf 15; Circuit board assemblies is installed on the bottom 10, and bottom 10 and bonnet 1 usefulness self-tapping screw 13 that circuit board is housed link together with the inner shell 4 that has installed code-wheel.
The course of work is: the rotation that must detect will be rotated input by importing gear 6, and 6 rotations of input gear drive first code-wheel 5 and rotate, and when first code-wheel, 5 rotation half-turns, then the carry cingulum on the dish moves the first carry gear 3-1 and rotates a tooth.First carry gear 3-1 drives second code-wheel 7 again and rotates a tooth.When second code-wheel 7 rotates half-turn, make the second carry gear 3-2 rotate a tooth again, the second carry gear 3-2 drives the 3rd code-wheel 9 again and rotates.The rotation that must detect is constantly imported like this, and then code-wheel also just constantly rotates.When code-wheel rotated, four photoelectricity sent dash receiver by the notch on the code-wheel, and detected rotational position signal is delivered to digital change-over circuit, are constantly sent the serial Gray code of turned position by digital change-over circuit.
That the utility model is mainly used in is electronic, in the pneumatic actuator, be used for the accurate measurement to the output shaft movement position, provides and returns feedback signal accurately; Also can be used for reversible metering to the positive and negative revolution of various article for rotation, or the accurate measurement of rotational angle.The utility model adopts Gray code, makes whenever to advance one digit number and have only the one digit number sign indicating number to change, and has overcome general binary code, the shortcoming of easy output mistake when binary-coded decimal is read; Each code-disc has two groups of five notches, has enlarged counting region effectively, and three coded disc counting scopes can reach 0-32768; Used the mechanical counter bit method, made novelty simple in structure; Can adopt common metal material and engineering plastics in addition, use the electronic component of easily purchasing on the market, adopt stamping parts and moulding production, production drops into low.
Claims (4)
1, a kind of absolute type encoder comprises input gear, code-wheel, carry gear, positioning ball, spring leaf, circuit board assemblies, air-cored axis, little axle, shell, bonnet and bottom, it is characterized in that: air-cored axis and little axle are installed in the enclosure respectively; Little axle is equipped with the first carry gear and the second carry gear successively; Air-cored axis is separately installed with first code-wheel, second code-wheel, the 3rd code-wheel and input gear; The input gear and first code-wheel are connected with a joggle, first code-wheel is connected with the first carry gearing mesh, the first carry gear and second code-wheel are connected with a joggle, and second code-wheel is connected with the second carry gearing mesh, and the second carry gear and the 3rd code-wheel are connected with a joggle; Circuit board assemblies sends dash receiver by four photoelectricity and a digital change-over circuit plate is formed, and four photoelectricity send dash receiver and are welded on the digital change-over circuit plate; Positioning ball is placed in the shell pilot hole, and compresses with spring leaf; Circuit board assemblies is installed on the bottom, and bottom and bonnet that circuit board is housed link together with screw and the inner shell that has installed code-wheel.
2, a kind of absolute type encoder as claimed in claim 1 is characterized in that: described first code-wheel, second code-wheel, the 3rd code-wheel are respectively arranged with two groups of five notches.
3, a kind of absolute type encoder as claimed in claim 2 is characterized in that: described first code-wheel, second code-wheel, the 3rd code-wheel are separately positioned on photoelectricity and send between the dash receiver.
4, a kind of absolute type encoder as claimed in claim 2 is characterized in that: described positioning ball has two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200740773U CN201177512Y (en) | 2008-03-14 | 2008-03-14 | Absolute encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200740773U CN201177512Y (en) | 2008-03-14 | 2008-03-14 | Absolute encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201177512Y true CN201177512Y (en) | 2009-01-07 |
Family
ID=40217532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200740773U Expired - Fee Related CN201177512Y (en) | 2008-03-14 | 2008-03-14 | Absolute encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201177512Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322881A (en) * | 2011-05-30 | 2012-01-18 | 扬州电力设备修造厂 | Non-contact passive hold-down photomagnetic multi-rotary absolute position sensor |
| CN102607605A (en) * | 2012-02-29 | 2012-07-25 | 天津祥嘉流体控制系统有限公司 | Absolute position encoder for Hall multiple rings |
| CN109341737A (en) * | 2018-11-21 | 2019-02-15 | 金卡智能集团股份有限公司 | Intelligent metering instrument brush sample count structure |
| CN114432662A (en) * | 2022-01-26 | 2022-05-06 | 嘉兴职业技术学院 | Pull-up trainer |
| CN115493628A (en) * | 2022-11-16 | 2022-12-20 | 惠州市正牌科电有限公司 | Code disc, gray code encoder and encoding method thereof |
-
2008
- 2008-03-14 CN CNU2008200740773U patent/CN201177512Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322881A (en) * | 2011-05-30 | 2012-01-18 | 扬州电力设备修造厂 | Non-contact passive hold-down photomagnetic multi-rotary absolute position sensor |
| CN102607605A (en) * | 2012-02-29 | 2012-07-25 | 天津祥嘉流体控制系统有限公司 | Absolute position encoder for Hall multiple rings |
| CN109341737A (en) * | 2018-11-21 | 2019-02-15 | 金卡智能集团股份有限公司 | Intelligent metering instrument brush sample count structure |
| CN109341737B (en) * | 2018-11-21 | 2024-04-12 | 金卡智能集团股份有限公司 | Brush sampling counting structure of intelligent metering instrument |
| CN114432662A (en) * | 2022-01-26 | 2022-05-06 | 嘉兴职业技术学院 | Pull-up trainer |
| CN115493628A (en) * | 2022-11-16 | 2022-12-20 | 惠州市正牌科电有限公司 | Code disc, gray code encoder and encoding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20120314 |