CN103868439B - The method of multi-turn angular travel measuring apparatus and measurement multi-turn angular travel thereof - Google Patents

The method of multi-turn angular travel measuring apparatus and measurement multi-turn angular travel thereof Download PDF

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Publication number
CN103868439B
CN103868439B CN201210548874.1A CN201210548874A CN103868439B CN 103868439 B CN103868439 B CN 103868439B CN 201210548874 A CN201210548874 A CN 201210548874A CN 103868439 B CN103868439 B CN 103868439B
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China
Prior art keywords
gear
described
multi
angular travel
turn angular
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CN201210548874.1A
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Chinese (zh)
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CN103868439A (en
Inventor
周俊
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南京欧控自动化有限公司
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Abstract

The present invention provides a kind of multi-turn angular travel measuring apparatus, comprises gear combination, and gear combination comprises the first gear and the 2nd gear, and the number of teeth of the first gear is the number N of teeth of the 1, two gear1, N1Being more than or equal to 2, the first gear comprises the first main tooth, and the first main tooth and the 2nd gear engage each other, or the first main tooth is provided with the first extension tooth in the axis direction of vertical first gear, and the first extension tooth and the 2nd gear engage each other, and described first gear rotates N1During circle, described 2nd gear rotates 1 circle. The multi-turn angular travel measuring apparatus structure of the present invention is simple, and error is little, tolerance range height. Present invention also offers a kind of method measuring multi-turn angular travel, the method for the measurement multi-turn angular travel of application the present invention, has the following advantages: (1) structure is simple, facilitates scene to debug; (2) the accuracy of measurement height of multi-turn angular travel.

Description

The method of multi-turn angular travel measuring apparatus and measurement multi-turn angular travel thereof

Technical field

The present invention discloses a kind of multi-turn angular travel measuring apparatus and measures the method for multi-turn angular travel.

Background technology

Measuring the position that rotating object runs, such as the gate valve of band screw mandrel, because length and the valve aperture of valve rod are not of uniform size, the number of turns therefore rotated is also different, the position that Measuring Object is run at present, it is necessary to being first converted to electrical signal could measure.

The method of existing measured angular displacement is generally measured with potentiometer and hall sensing device, but this kind of testing method can only measure the position signal within the scope of 360 degree, so multi-turn displacement measurement can only pass through built-up type measuring method.

The method measuring multi-turn angular travel at present mainly contains two kinds:

1, adopt built up gear group according to reality running number of turns conversion portfolio ratio, maximum displacement converts in a circle the most at last, electrical signal is converted to by potentiometer or hall sensing device, shortcoming is: employing gear unit must according to on-the-spot machine operation, the operation ratio of adjustment gear unit, each debugging must be opened equipment and be debugged, it is necessary to certain working experience, if the improper meeting of ratio causes measuring accuracy difference or affects equipment use; Built up gear group complex structure, more multi-gear group is more many to run the number of turns, easily damages.

2, photoelectric counting method is adopted, draw the operation number of turns, adding the minimum position that potentiometer or hall sensing device are measured, by calculating actual displacement, shortcoming is: adopt photoelectric counting method, can obliterated data when equipment has a power failure, it is necessary to adopt stand-by battery to power, also can obliterated data when powered battery is not enough; If interference or other reasons cause counting mistake simultaneously, can be retained in measuring result always, also can form progressive error.

Therefore, measuring apparatus or the method for inventing a kind of simple, accuracy much higher circle angular travel have important meaning.

Summary of the invention

The present invention provides a kind of multi-turn angular travel measuring apparatus, and structure is simple, and error is little, accuracy height.

In order to reach above technique effect, the technical scheme of the present invention is as follows:

A kind of multi-turn angular travel measuring apparatus, comprises gear combination;

Described gear combination comprises the first gear and the 2nd gear;

The number of teeth of described first gear is 1;

The number N of teeth of described 2nd gear1, N1It is more than or equal to 2;

Described first gear comprises the first main tooth;

Described first main tooth and described 2nd gear engage each other, or described first main tooth is provided with the first extension tooth in the axis direction of vertically described first gear, and described first extension tooth and described 2nd gear engage each other;

Described first gear rotates N1During circle, described 2nd gear rotates 1 circle.

Preferably, described first extension tooth and described first main tooth are formed in one structure.

Preferably, described first gear is metal material or plastic material.

Preferably, described 2nd gear is metal material or plastic material.

Preferably, described N1It is less than or equal to 50.

In order to reach better technique effect, described gear unit amounts to the gear comprising n quantity, n is more than or equal to 3, described n-th gear comprises the n-th full-depth tooth face, (n-1)th gear comprises the (n-1)th full-depth tooth face and the (n-1)th main tooth, described (n-1)th main tooth is provided with the (n-1)th extension tooth in the axis direction in vertically described (n-1)th full-depth tooth face, and described (n-1)th extension tooth and described n-th gear engage each other; The number of teeth of described n-th gear is Nn-1, Nn-1It is more than or equal to 2; Described (n-1)th gear rotates Nn-1During circle, described n-th gear rotates 1 circle.

Preferably, described Nn-1It is less than or equal to 50.

Preferably, described n-th gear is metal material or plastic material. .

The technical scheme of application the present invention, has following technique effect: (1) multi-turn angular travel measuring apparatus structure is simple; (2) number of teeth having of gear is less than or equal to 50, when metering circuit accurately ensures, it is ensured that number of turns counting does not have error; (3) gear adopts metal material or plastic material, and the number of gear can carry out appropriate increasing according to actual demand, meets the different needs, and suitability is wide.

Present invention also offers a kind of method measuring multi-turn angular travel, it is specially and adopts the multi-turn angular travel measuring apparatus of the present invention to carry out measuring multi-turn angular travel, the actual measured value of described first gear is L ', the full scale value of described first gear is L, and total range value M of the multi-turn angular travel measured by described gear combination is: L '+(N1+N1��N2+��+Nn-2��Nn-1) �� L.

Apply the method for measurement multi-turn angular travel provided by the invention, have the following advantages: (1) multi-turn angular travel measuring apparatus structure is simple, facilitates scene to debug; (2) the accuracy of measurement height of multi-turn angular travel.

Accompanying drawing explanation

Fig. 1 is the structure diagram of the gear combination of multi-turn angular travel measuring apparatus in embodiment 1;

Fig. 2 is the structural representation of the first gear in Fig. 1;

Fig. 3 is the A-A sectional view of the first gear in Fig. 2;

Fig. 4 is the structure diagram of the gear combination of multi-turn angular travel measuring apparatus in embodiment 2;

Fig. 5 is the structural representation of the 2nd gear in Fig. 4;

Fig. 6 is the B-B sectional view of the 2nd gear in Fig. 5.

Embodiment

The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing and specific embodiment, is used for explaining the technical scheme of the present invention in the illustrative examples of this present invention and explanation, but not as a limitation of the invention.

Embodiment 1:

As shown in Figure 1, multi-turn angular travel measuring apparatus middle gear of the present invention combination comprises the gear of the first gear 11 and the 2nd gear 12 totally 2 quantity.

The number of teeth of described first gear 11 is 1.

The number N of teeth of described 2nd gear 121, N1It is more than or equal to 2 and be less than or equal to 50.

From Fig. 2 and Fig. 3, described first gear 11 comprises the first main tooth 111, described first main tooth 111 engages each other with described 2nd gear 12, and described first gear 11 is fixed in same plane by the first stationary shaft 13 and the 2nd stationary shaft 14 respectively with described 2nd gear 12.

Described first gear 11 and the 2nd gear 12 are metal material or plastic material.

Described first gear 11 rotates N1During circle, described 2nd gear 12 rotates 1 circle.

The multi-turn angular travel measuring apparatus of application the present invention, has following technique effect: (1) multi-turn angular travel measuring apparatus structure is simple; (2) number of teeth of gear is less than or equal to 50, when metering circuit accurately ensures, it is ensured that number of turns counting does not have error; (3) gear adopts metal material or plastic material, meets the different needs, and suitability is wide

Measure the method for multi-turn angular travel with the multi-turn angular travel measuring apparatus of the present invention, the actual measured value of described first gear 11 is L ', and the full scale value of described first gear 11 is L, and total range value M of the multi-turn angular travel measured by described gear combination is: L '+N1��L��

The method that multi-turn angular travel measured by the multi-turn angular travel measuring apparatus of application the present invention has the following advantages:

(1) multi-turn angular travel measuring apparatus structure is simple, and scene does not need to open debugs;

(2) the accuracy of measurement height of multi-turn angular travel.

Embodiment 2:

As shown in Figure 4, the gear combination in multi-turn angular travel measuring apparatus of the present invention comprises the gear of the first gear 21, the 2nd gear 22 and the 3rd gear 23 totally 3 quantity.

Described first gear 21 comprises the first main tooth 211.

By Fig. 5 and Fig. 6 it will be seen that described 2nd gear 22 comprises the 2nd full-depth tooth face 221 and the 2nd main tooth 222, described 2nd main tooth 222 is provided with the 2nd extension tooth 223 in the axis direction in vertically described 2nd full-depth tooth face 221.

Described first main tooth 211 engages each other with described 2nd gear 22, and described first gear 21 and the 2nd gear 22 are fixed in same plane by the first stationary shaft 24 and the 2nd stationary shaft 25 respectively.

Described 2nd extension tooth 223 engages each other with described 3rd gear 23, and described 2nd gear 22 and described 3rd gear 23 are fixed in mutually parallel two plane by the 2nd stationary shaft 25 and the 3rd stationary shaft 26 respectively.

The number of teeth of described first gear 21 is 1, the number N of teeth of described 2nd gear 221, the number N of teeth of described 3rd gear 232; Described first gear 21 rotates N1During circle, described 2nd gear 22 revolves and turns around; Described 2nd gear 22 rotates N2During circle, described 3rd gear 23 revolves and turns around, N1It is more than or equal to 2 and be less than or equal to 50, N2It is more than or equal to 2 and be less than or equal to 50.

Described first gear 21, the 2nd gear 22 and the 3rd gear 23 are metal material or plastic material.

Described 2nd main tooth 222 and described 2nd extension tooth 223 are formed in one structure.

Apply multi-turn angular travel measuring apparatus of the present invention, there is following technique effect: (1) multi-turn angular travel measuring apparatus structure is simple; (2) number of teeth of gear is less than or equal to 50, when metering circuit accurately ensures, it is ensured that number of turns counting does not have error; (3) gear adopts metal material or plastic material, and the number of gear can carry out appropriate increasing according to actual demand, meets the different needs, and suitability is wide.

Apply the method that multi-turn angular travel measured by multi-turn angular travel measuring apparatus of the present invention, the actual measured value of described first gear 21 is L ', the full scale value of described first gear 21 is L, and total range value M of the multi-turn angular travel measured by described gear combination is: L '+(N1+N1��N2) �� L.

The method applying multi-turn angular travel measuring apparatus of the present invention measurement multi-turn angular travel has the following advantages:

(1) multi-turn angular travel measuring apparatus structure is simple, and scene does not need to open debugs;

(2) the accuracy of measurement height of multi-turn angular travel.

When the gear unit in multi-turn angular travel measuring apparatus of the present invention comprises the gear of n quantity, 1st gear is identical with described first gear 21 structure, n-th gear is identical with the 3rd gear 23 structure, 2nd gear to the (n-1)th gear is identical with the structure of described 2nd gear 22, logical first gear 21 of the relation that engages each other of the 1st gear and the 2nd gear and the 2nd gear 22 engage each other relation, between 2nd gear to the n-th gear, the relation that engages each other of two gears engages each other relation with described 2nd gear 22 and the 3rd gear 23 successively, and n is more than or equal to 4.

Use the present invention comprises the measuring method of method with three gears of the multi-turn angular travel measuring apparatus measurement multi-turn angular travel of the gear unit of n quantity gear.

Except above embodiment, the gear in described gear combination can be designed to the structure such as twisted spur gear or cone gear according to the mentality of designing of the present invention, meets the different needs.

The above is the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.

Claims (9)

1. a multi-turn angular travel measuring apparatus, it is characterised in that: comprise gear combination;
Described gear combination comprises the first gear and the 2nd gear;
The number of teeth of described first gear is 1;
The number N of teeth of described 2nd gear1, N1It is more than or equal to 2;
Described first gear comprises the first main tooth;
Described first main tooth and described 2nd gear engage each other, or described first main tooth is provided with the first extension tooth in the axis direction of vertically described first gear, and described first extension tooth and described 2nd gear engage each other;
Described first gear rotates N1During circle, described 2nd gear rotates 1 circle.
2. multi-turn angular travel measuring apparatus according to claim 1, it is characterised in that: described first extension tooth and described first main tooth are formed in one structure.
3. multi-turn angular travel measuring apparatus according to claim 1, it is characterised in that: described first gear is metal material or plastic material.
4. multi-turn angular travel measuring apparatus according to claim 1, it is characterised in that: described 2nd gear is metal material or plastic material.
5. multi-turn angular travel measuring apparatus according to claim 1, it is characterised in that: described N1It is less than or equal to 50.
6. according to claim 1-5 wherein multi-turn angular travel measuring apparatus described in any one, it is characterized in that: described gear unit amounts to the gear comprising n quantity, n is more than or equal to 3, described n-th gear comprises the n-th full-depth tooth face, (n-1)th gear comprises the (n-1)th full-depth tooth face and the (n-1)th main tooth, described (n-1)th main tooth is provided with the (n-1)th extension tooth in the axis direction in vertically described (n-1)th full-depth tooth face, and described (n-1)th extension tooth and described n-th gear engage each other; The number of teeth of described n-th gear is Nn-1, Nn-1It is more than or equal to 2; Described (n-1)th gear rotates Nn-1During circle, described n-th gear rotates 1 circle.
7. multi-turn angular travel measuring apparatus according to claim 6, it is characterised in that: described Nn-1It is less than or equal to 50.
8. multi-turn angular travel measuring apparatus according to claim 6, it is characterised in that: described n-th gear is metal material or plastic material.
9. one kind adopts the method for claim 7 or 8 multi-turn angular travel measuring apparatus measurement multi-turn angular travel, it is characterised in that:
The actual measured value of described first gear is L ', and the full scale value of described first gear is L;
Total range value M of the multi-turn angular travel measured by described gear combination is: L '+(N1+N1��N2+��+Nn-2��Nn-1).
CN201210548874.1A 2012-12-17 2012-12-17 The method of multi-turn angular travel measuring apparatus and measurement multi-turn angular travel thereof CN103868439B (en)

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Application Number Priority Date Filing Date Title
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CN103868439B true CN103868439B (en) 2016-06-01

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DE102006023286A1 (en) * 2006-05-18 2007-11-22 Leopold Kostal Gmbh & Co. Kg Angle sensor
DE502007003076D1 (en) * 2007-01-05 2010-04-22 Sick Stegmann Gmbh encoders
JP5097800B2 (en) * 2010-06-09 2012-12-12 アルプス電気株式会社 Rotation angle sensor
CN102749026B (en) * 2012-07-10 2015-01-21 万向钱潮(上海)汽车系统有限公司 Detection device and method for absolute-type multi-circle rotation angle

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