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Off-axis absolute value encoder

An absolute encoder, off-axis technology, applied in the field of motor encoders, can solve the problems of large occupied space, reduced encoder measurement accuracy, unfavorable miniaturization, etc., and achieves the effects of compact structure, reduced vibration interference, and convenient installation.

Pending Publication Date: 2022-07-12
SHANGHAI HENGXIANG OPTICAL ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the inherent vibration of the motor and the movement of the motor shaft, the measurement accuracy of the encoder is reduced.
At the same time, due to the limitation of the installation location, it takes up a lot of space, which is not conducive to the need for miniaturization

Method used

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Examples

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Embodiment Construction

[0030] The specific embodiments of the off-axis absolute encoder of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] see attached figure 1 , The off-axis absolute encoder includes a flange 1 and a base 2. The base 2 is fixed on the flange 1, and the bearing frame 3 is fixed on the base 2, and is set between the base 2 and the bearing frame 3 The code disc 4 and the PCB board 5 are provided with a shaft sleeve 6 in the middle of the base 2 . An expansion ring 7 and a locking nut 8 are arranged in the shaft sleeve 6, the PCB board 5 is fixed on the bearing frame 3, the two ends of the shaft sleeve 6 are provided with bearings 9, and the bearings 9 are respectively fixed on the base 2 and the bearing frame 3. The tightening nut 8 locks the expansion ring 7.

[0032] see attached figure 2 , the base 2 is fixed on the flange 1 through the elastic frame 10, the elastic frame 10 is made of spring steel material, and its...

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Abstract

The invention relates to the technical field of motor encoders, and discloses an off-axis absolute value encoder, which comprises a flange plate and a base, the base is fixed on the flange plate, a bearing frame is fixedly arranged on the base, a code disc and a PCB (Printed Circuit Board) are arranged between the base and the bearing frame, a shaft sleeve is arranged in the middle of the base, the code disc is fixed on a wing edge of the shaft sleeve, and the bearing frame is fixed on the shaft sleeve. An expansion ring and a locking nut are arranged in the shaft sleeve, the PCB is fixed on the bearing frame, bearings are arranged at two ends of the shaft sleeve, the bearings are respectively fixed on the base and the bearing frame, and the expansion ring is locked by the locking nut. Off-axis coaxial holding flexible connection is adopted, an ultra-thin and ultra-small structure is achieved, installation is convenient, and precision is high.

Description

technical field [0001] The invention relates to the technical field of motor encoders, in particular to an off-axis absolute value encoder. Background technique [0002] Absolute encoders are used for precise motion control, especially linear motion. The existing installation method of the absolute encoder is generally installed on the motor shaft through a coupling. However, due to the inherent vibration of the motor and the movement of the motor shaft, the measurement accuracy of the encoder is reduced. At the same time, due to the limitation of the installation position, the occupied space is large, which is not conducive to the need for miniaturization. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to solve the above problems and provide an off-axis absolute encoder, which uses an off-axis coaxially-clamped flexible connection, realizes an ultra-thin and ultra-small structure, is easy to install, and has high precision. [0004] The techn...

Claims

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Application Information

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IPC IPC(8): G01D5/249
CPCG01D5/2497
Inventor 方国祥
Owner SHANGHAI HENGXIANG OPTICAL ELECTRONICS
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