CN213906504U

CN213906504U - High-precision small-sized incremental encoder

Info

Publication number: CN213906504U
Application number: CN202120073745.6U
Authority: CN
Inventors: 方国祥
Original assignee: Shanghai Hengxiang Optical Electronic Co ltd
Current assignee: Shanghai Hengxiang Optical Electronic Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-08-06
Anticipated expiration: 2031-01-12

Abstract

The utility model relates to a motor encoder technical field discloses a small-size incremental encoder of high accuracy, including the encoder body, this internal blind hole axle that sets up of encoder, the hole depth of blind hole axle is 9-10mm, set up holding screw on the encoder body, connect the interface cable on the encoder body, the axiality between the motor shaft that blind hole axle and cooperation are connected is less than 0.03mm, the aperture of blind hole axle is 4.0-6.5 mm. The utility model discloses the realization is high with the installation accuracy of motor shaft, is applicable to small-size and microminiature motor.

Description

High-precision small-sized incremental encoder

Technical Field

The utility model relates to a motor encoder technical field especially relates to a small-size incremental encoder of high accuracy.

Background

The encoder is divided into a photoelectric type, a magnetic sheet type, an incremental type and the like, and the parameters such as the rotation angle, the displacement and the like of the motor are measured by detecting photoelectric signals.

The existing encoder has a plurality of problems for the application of the micro motor, and the accuracy and the installation form affect the measurement result.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem, provide a small-size incremental encoder of high accuracy, the installation accuracy is high, is applicable to small-size and microminiature motor.

The utility model adopts the technical proposal that:

the utility model provides a small-size incremental encoder of high accuracy, characterized by, includes the encoder body, this internal blind hole axle that sets up of encoder, the hole depth of blind hole axle is 9-10mm, set up holding screw on the encoder body, connect the interface cable on the encoder body, the axiality between the motor shaft that blind hole axle and cooperation are connected is less than 0.03mm, the aperture of blind hole axle is branst 4.0-6.5 mm.

Further, the interface cable is located below the encoder body, and the bending radius of the interface cable is greater than 20 mm.

Further, the set screws are two and arranged at 90 degrees.

Further, the axial movement of the motor shaft matched with the blind hole shaft is less than 0.1 mm.

The utility model has the advantages that:

(1) the precision of the shaft hole is improved, so that the detection precision is higher;

(2) the lower outgoing line does not influence the work of the motor and occupies no extra space;

(3) the two sides are fixed to limit the positioning of the shaft hole.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the installation position of the interface cable of the present invention;

fig. 3 is a schematic view of the mounting of the encoder to the motor.

The reference numbers in the drawings are respectively:

1. an encoder body; a blind hole shaft;

3. tightening the screw; 4, a motor shaft;

5. an interface cable.

Detailed Description

The following describes in detail a specific embodiment of the high-precision small incremental encoder according to the present invention with reference to the accompanying drawings.

Referring to the accompanying drawings 1 to 3, the small-size incremental encoder of high accuracy includes encoder body 1, sets up blind hole axle 2 in the encoder body 1, and the hole depth of blind hole axle 2 is 9-10mm, and the aperture of blind hole axle 2 is 4.0-6.5 mm on the hot. Set screw 3 is set up on encoder body 1, and set screw 3 is two, is 90 degrees and arranges. The two set screws 3 fix the motor shaft 4 and the blind hole shaft 2, so that the coaxiality between the blind hole shaft 2 and the motor shaft 4 which is connected in a matched mode is smaller than 0.03mm, and the axial movement of the motor shaft 4 which is matched with the blind hole shaft 2 is smaller than 0.1 mm.

Referring to fig. 2, the encoder body 1 is connected with an interface cable 5, the interface cable 5 is located below the encoder body 1, and the bending radius of the interface cable 5 is greater than 20 mm.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A high-precision small-sized incremental encoder is characterized in that: including the encoder body, this internal blind hole axle that sets up of encoder, the hole depth of blind hole axle is 9-10mm, set up holding screw on the encoder body, connect the interface cable on the encoder body, the axiality between the motor shaft that blind hole axle and cooperation are connected is less than 0.03mm, the aperture of blind hole axle is 4.0-6.5 mm wide.

2. A high precision compact incremental encoder according to claim 1, characterized in that: the interface cable is located the below of encoder body, and the bending radius of interface cable is greater than 20 mm.

3. A high precision compact incremental encoder according to claim 1, characterized in that: the two set screws are arranged at 90 degrees.

4. A high precision compact incremental encoder according to claim 1, characterized in that: the axial movement of the motor shaft matched with the blind hole shaft is less than 0.1 mm.