Photoelectric angle converter

IPC classes for russian patent Photoelectric angle converter (RU 2263395):

H03M1/28 - CODING, DECODING OR CODE CONVERSION, IN GENERAL (using fluidic means F15C0004000000; optical analogue/digital converters G02F0007000000; coding, decoding or code conversion, specially adapted for particular applications, see the relevant subclasses, e.g. G01D, G01R, G06F, G06T, G09G, G10L, G11B, G11C, H04B, H04L, H04M, H04N; ciphering or deciphering for cryptography or other purposes involving the need for secrecy G09C)

H03M1/24 - CODING, DECODING OR CODE CONVERSION, IN GENERAL (using fluidic means F15C0004000000; optical analogue/digital converters G02F0007000000; coding, decoding or code conversion, specially adapted for particular applications, see the relevant subclasses, e.g. G01D, G01R, G06F, G06T, G09G, G10L, G11B, G11C, H04B, H04L, H04M, H04N; ciphering or deciphering for cryptography or other purposes involving the need for secrecy G09C)

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FIELD: automation and computer engineering.

SUBSTANCE: proposed photoelectric angle converter that can be used for analog-to-digital conversion of shaft angular position to digital code in order to obtain digital information from controlled entities and to enter it in digital control and computing machines is installed on user's object and has case, guide cylinders disposed in diametrically opposite holes of case, shaft being encoded, indicating and metering disks with calibrated scale, radiators, and photodetectors forming optical information channels, as well as scale zero indicator in the form of hole in one of guide cylinders. Novelty is that installed in converter coaxially with shaft being encoded is coupling with flexible compensating member such as corrugated compensating member that has through hole coaxial with scale zero indicator, diameter of hole being greater than that of guide cylinder hole; coupling is joined with case on one end and with fixed part of object, on other end.

EFFECT: enhanced and enlarged functional capabilities due to facilitated jointing; enhanced precision and checkup of converter coupling with user's object.

1 cl, 2 dwg

The invention relates to automation and computer engineering and can be used for analog-to-digital conversion of the angular position of the shaft-to-digital Converter for receiving digital information from managed objects and putting it into the digital control and computing machines.

Known photoelectric transducer angle set on the user object, comprising a housing encoded shaft, measuring and indicator drives the emitters and photodetectors, the holders of emitters, photodetectors and the indicator disc, see Yakushenko YG "Design of opto-electronic devices", M.: engineering, 1981, Fig. 5.25, p.137-138.

This Converter has no axial fixation of the encoded shaft, which reduces the reliability of the mounting of the transducer and the accuracy of his work.

Known photoelectric transducer angle set on the user object, comprising a housing encoded shaft made with a cylindrical internal hole for the shaft of the user, the measuring and indicator drives the emitters and photodetectors, devices for securing holders, see the Prospect of Heidenhain. Germany: 1994. Model RON 255, 455. C18. The prospect of Heidenhain. General Catalog. Germany: 2003. P.32.

In the known device the Converter is attached to the shaft of the user nut in the axial direction of the tion, and in the radial direction between the shaft of the user and the shaft of the Converter there is a gap, because in this direction the design does not provide a clamping mechanism, this reduces the rigidity of the coupling of the transducer with the shaft of the user in the radial direction.

Known photoelectric transducer angle, comprising a housing encoded shaft, indicator and measuring disks, emitters and photodetectors, see the patent of the Russian Federation No. 2213415 on CL H 03 M 1/24, 1/28, publ. 2003

This technical is taken as the prototype of the present invention.

However, it has drawbacks.

In the photoelectric Converter prototype is not provided with a coaxial mounting on the shaft as on the shaft there is no through hole, to ensure the rigidity of the coupling in the radial and axial direction is required docking device, and this complicates the design and increases its size.

The basis of the present invention based on a technical solution to ensure play-free fixing of the transducer in the axial and radial directions on the movable part of the object with the possibility of adjustment efforts when attaching within the design of the Converter.

According to the invention this task is solved in such a way that photos tricocci angle Converter includes a housing, encoded shaft, indicator and measuring disks, emitters and photodetectors.

In the encoded shaft is made a groove and a through hole with a conical and a cylindrical inner surfaces and mounted coaxially with the shaft mounting device, for example in the form of a collet with an outer conical surface, second conical surface of the through hole, and the guide sleeve with the outer cylindrical surface, second cylindrical surface of the through hole, which is installation-adjusting element, for example in the form of a threaded shaft with a nut, which is associated with the shank and with the end portion of the encoded shaft and inside of the guide sleeve has a limiter angular position of the mounting device, for example in the form of a pin that interacts with a groove.

The applicant has not identified the sources containing information about technical solutions, identical to the present invention, which allows to make a conclusion about its compliance with the criterion of "novelty".

Due to the implementation of the distinguishing features of the invention (in conjunction with the features indicated in the restrictive part of the formula) achieved an important new properties object.

Installation of the fixing device and the fixing of the transducer in the axial and radial direction increases the reliability of mounting the deposits and the accuracy of his work.

Running through holes in the encoded shaft provides coaxial installation of the transducer on the shaft of the user and the possibility of placing the mounting device with a hard inclusion of the Converter shaft and coupling it with a moving part of the user object.

The installation-adjusting element to the mounting device provides for adjustment of the clamp on the shaft of the user.

The presence of the groove in the encoded shaft located parallel to its axis, and limiter angular position of the clamping device excludes reversals of the transducer relative to the user object when attaching.

The applicant is not aware of any publication that would contain information about the impact of the distinctive features of invention technical result achieved in this regard, according to the applicant, it is possible to draw a conclusion on the conformity of the proposed technical solution the criterion of " inventive step".

The invention is illustrated by drawings, where shown on figure 1 - photoelectric transducer angle (cut), figure 2 - section a-a in figure 1.

Photoelectric transducer angle contains:

Case 1.

Encoded shaft 2:

- the groove (shaft 2) 3,

- through hole (shaft 2) 4,

- conical inner surface (4 hole) 5,

- cylindricus the second inner surface (4 hole) 6.

The mounting device 7:

- Tsang (device 7) 8,

- guide Bush (device 7) 9,

- installation-adjusting element (sleeve 9) 10,

- threaded shank (item 10) 11,

- nut (item 10) 12,

stop angular position (inside of the bushing 9) 13,

- pin (limiter 13) 14.

Indicator disc 15.

Measuring disk 16.

The emitters 17.

The photodetectors 18.

Photoelectric transducer angle includes a housing 1, encoded by the shaft 2, the indicator 15 and the measuring 16 drives the emitters 17 and the photodetector 18. In the encoded shaft 2 has a groove 3 and a through hole 4. A through hole 4 has a conical 5 and 6 cylindrical inner surface. In the hole 4 of the shaft 2 is installed, the fastening device 7. The mounting device 7 preferably contains the collet 8, with at least three petals, and a guiding device 9. The collet 8 is made with the outer conical surface response conical surface 5 of the through-hole 4, and the guide sleeve 6 with the outer cylindrical surface response cylindrical surface 6 of the through hole 4 of the encoded shaft 2. On the guide sleeve 9 is installation-adjusting element 10, preferably in the form of a threaded shank 11 and a nut 12. Nut 12 is mated with the threaded shank 11 and face frequent the Yu encoded shaft 2. Inside the guide sleeve 9 has a limiter angular position 13 of the fixing device 7, preferably in the form of font size 14, which communicates with the groove 3 of the encoded shaft 2. Photoelectric transducer angle is as follows.

The angular displacement of the encoded shaft 2 shaft from a user (not shown) causes rotation of the metering disk 16 in the housing 1, while the light output from the emitters 17, passing through the metering disk 16 and indicator disc 15, is supplied to the photodetector 18 is blocked by the disk 16. Each angle of the encoded shaft 2 with the measuring disk 16 is characterized by its own combination of electrical signals coming from the sensors 18, required for the formation of the digital code Converter, which is the expression of this angle.

After installing the Converter on the shaft of the user (not shown) nut 12 is turned, while the mounting device 7 moves within the encoded shaft 2 in the axial direction, and the petals of the collet 8 hard cover per user, allowing the coupling of the transducer with a movable part of the user object. The mounting device 7 carries out reliable play-free fixing of the transducer on the movable (rotating) part of the user object, as in the axial and in the radial direction. Nut 12 ASU is actulay adjustment efforts clamping collet 8 on the shaft of the user. The limiter angular position 13, preferably made in the form of a pin 14, interacting with the groove 3 of the encoded shaft 2, excludes reversals of the transducer relative to the user object when conducting fastening operations.

Proposed photoelectric transducer angle manufactured in the factory shop "Measured", and the tests confirm its compliance with the criterion of "industrial applicability".

Proposed photoelectric transducer angle helps to ensure play-free fixing of the transducer in the axial and radial directions on the movable part of the object with the possibility of adjustment efforts in the mount, because

the transducer is fixed in the axial and radial directions,

- mounting device with a hard covering of the shaft of the Converter is placed in a through hole of the encoded shaft within the axial dimensions of the Converter,

- installation-adjusting element is placed in the fixing device

stop angular position interacts with the groove of the encoded shaft.

Photoelectric transducer angle, comprising a housing encoded shaft, indicator and measuring disks, emitters and photodetectors, characterized in that the encoded shaft is made a groove and squozen the e hole with conical and cylindrical inner surfaces and mounted coaxially with the shaft mounting device, for example, in the form of a collet with an outer conical surface, second conical surface of the through hole, and the guide sleeve with the outer cylindrical surface, second cylindrical surface of the through hole, which is installation-adjusting element, for example, in the form of a threaded shaft with a nut, which is associated with the shank and with the end portion of the encoded shaft and inside of the guide sleeve has a limiter angular position of the mounting device, for example, in the form of a pin that interacts with a groove.