Increment type photoelectric encoder

A photoelectric encoder and incremental technology, applied in the field of photoelectric coding, can solve the problems of inconvenient use and maintenance, low precision and low resolution, and achieve the effect of easy maintenance, high precision and high resolution

Inactive Publication Date: 2011-10-26
王天甜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing photoelectric encoders have low resolution, low precision, large volume, and inconvenient use and maintenance

Method used

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  • Increment type photoelectric encoder
  • Increment type photoelectric encoder

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Embodiment Construction

[0012] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0013] Such as figure 1 As shown, an incremental photoelectric encoder includes a casing 6, a positioning body 1 is fixed inside the casing 6, an O-shaped sealing ring 10 is installed at the connection between the casing 6 and the positioning body 1, and the positioning body 1 is connected to the main shaft through a bearing 2 3. There are two PCB circuit boards 8, 8` at one end of the main shaft 3 in the housing 6, and a code disc 9 is installed between the two PCB circuit boards 8, 8`, and the PCB circuit board 8 on the left side of the code disc 9 is equipped with a photosensitive The component 7 and the PCB circuit board 8 ′ on the right side of the code disc 9 are equipped with a light source 4 , and a connector 5 is connected to the top of...

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PUM

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Abstract

Provided is an increment type photoelectric encoder. The invention relates to the field of photoelectric coding technology. The encoder comprises a housing and a positioning body fixed in the housing and is characterized in that O type sealing rings are provided at the connecting place of the housing and the positioning body. The positioning body is connected to a main shaft through a bearing. One end of the main shaft in the housing is provided with two PCB circuit boards. A code disc is provided between the two PCB circuit boards. The PCB circuit board at the left side of the code disc is provided with a light-sensitive element and the PCB circuit board at the right side of the code disc is provided with a light source. The upper part of the housing is connected to a connector. The invention has advantages such as high resolution, high precision, simple structure, small volume, reliable use, easy maintenance and the like. A solid and beautiful aluminium alloy and a stainless steel rotating shaft are adopted, the rotating shaft is designed with double bearings, and therefore the encoder can be used in a harsh working environment. The encoder is characterized by no screw and disposable machine pressed rubber so as to prevent dusts and splashing and ensure normal work in a scurvy environment.

Description

technical field [0001] The invention relates to the technical field of photoelectric encoding, in particular to an incremental photoelectric encoder. Background technique [0002] Encoder is a kind of sensor. It is mainly used to detect the speed, position, angle, distance or count of mechanical movement. In addition to being used in industrial machinery, many motor controls such as servo motors and BLDC servos All motors need to be equipped with encoders for the motor controller to detect phase commutation, speed and position, so the application range is quite wide. According to the detection principle, the encoder can be divided into optical, magnetic, inductive and capacitive. According to its scale method and signal output form, it can be divided into incremental encoder and absolute encoder. The photoelectric encoder uses the principle of grating diffraction to realize displacement-digital conversion. It is a digital detection device integrating light, mechanics and e...

Claims

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Application Information

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IPC IPC(8): G01D5/36
Inventor 王天甜
Owner 王天甜
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