Encoder

Abstract

The invention discloses an encoder which comprises a shell, an electric brush carrier, a rotating shaft, an encoding disc and an electric brush. The rotating shaft penetrates through the top of the shell and is fixed on the shell, the electric brush carrier, the coding disc and the electric brush are arranged in the shell, the electric brush is fixed on the electric brush carrier, and the electric brush carrier is fixedly connected with the rotating shaft at the bottom of the rotating shaft; a first connecting piece is arranged in the middle of the top of the coding disc, and at least one annular connecting piece is arranged around the first connecting piece; and insulating coatings are arranged on the annular connecting piece at equal intervals, electric brush tentacles are arranged at the bottom of the electric brush, one electric brush tentacle is in contact with the first connecting piece, and another electric brush tentacle is in contact with the annular connecting piece. The low-resistance wear-resistant layers with different grades are arranged on the annular connecting piece or the connecting piece, so that encoders with different service life grades can be realized. Compared with a traditional coding disc manufactured in a molding mode, the cost is relatively lower, the precision is higher, and a 32-bit encoder, a 64-bit encoder and even a 128-bit encoder can be achieved.

Description

technical field [0001] The invention relates to the field of encoders, in particular to an encoder. Background technique [0002] Most of the existing 32-bit encoders, 64-bit encoders or 128-bit encoders use optical encoders, but the optical encoders themselves have certain problems. If the rotation is too fast, it is easy to be unrecognizable, resulting in errors. And limited by the product structure complex process and the quality level of the optical devices used, the reliability is not as good as the mechanical encoder. However, most of the existing mechanical encoders are injection molded. Its accuracy is difficult to meet the requirements of 64-bit encoders or 128-bit encoders, and the life span is generally not more than 100,000 times. Therefore, it is necessary to have a good stability and feel. Encoder with high precision, long life and less error prone Contents of the invention [0003] The main purpose of the present invention is to provide an encoder with goo...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing 32-bit encoders, 64-bit encoders or 128-bit encoders use optical encoders, but the optical encoders themselves have certain problems. If the rotation is too fast, it is easy to be unrecognizable, resulting in errors. And limited by the product structure complex process and the quality level of the optical devices used, the reliability is not as good as the mechanical encoder

However, most of the existing mechanical encoders are injection molded. Its accuracy is difficult to meet the requirements of 64-bit encoders or 128-bit encoders, and the life span is generally not more than 100,000 times. Therefore, it is necessary to have a good stability and feel. Encoder with high precision, long life and less error prone

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