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Coded disc support, grating assembly and optical encoder

An encoder and code disc technology, applied in the field of encoders, can solve problems such as high cost and difficult processing, and achieve the effects of low cost, simple production, and improved product competitiveness.

Pending Publication Date: 2021-08-06
SHANGHAI LEIZHI MOTOR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a code disc support, a grating assembly and an optical encoder, which solves the problems that the existing metal code disc support is difficult to process and has high cost

Method used

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  • Coded disc support, grating assembly and optical encoder
  • Coded disc support, grating assembly and optical encoder
  • Coded disc support, grating assembly and optical encoder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Aiming at the problem that the metal code wheel bracket is difficult to process and has high cost; this embodiment provides a code wheel bracket made of plastic material, which is easier to manufacture and has higher precision than metal material because it is made of plastic material , and the cost is lower, and the product competitiveness of the code disc support can be greatly improved. For ease of understanding, this embodiment is combined below Figure 1 to Figure 8 The code wheel support structure shown is an example.

[0040] See Figure 1 to Figure 8 As shown, the code wheel support provided in this embodiment includes a support seat 1 and a code wheel carrying plate 2 made of plastic. in, figure 1 The direction indicated by the arrow A in is from low to high. See figure 1 As shown, the middle of the bracket seat 1 is provided with a lower first through hole 11 that runs through the upper and lower ends of the bracket seat 1, and the middle of the code disc...

Embodiment 2

[0058] This embodiment provides a grating assembly, please refer to Figure 9 to Figure 17 As shown, the grating assembly includes a reflective code wheel 3 and a code wheel support as shown in the above embodiment. The code wheel support provided in this embodiment includes a support seat 1 and a code wheel carrying plate 2 made of plastic. in, Figure 9 The direction indicated by the arrow A in is from low to high. See Figure 9 to Figure 17 As shown, the middle of the support base 1 is provided with a lower first through hole 11 that runs through the upper and lower ends of the support base 1, and the middle of the code disc carrier plate 2 is provided with a second through hole that penetrates the top surface and the bottom surface of the code disc carrier plate 2. 21; Wherein, the code disc carrying plate 2 is fixed on the lower end 13 of the bracket base 1 and the first through hole 11 communicates with the second through hole 21, and the diameter of the first through...

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Abstract

The invention discloses a code disc support, a grating assembly and an optical encoder. The code disc support is used for bearing and fixing a reflective code disc, and the code disc support comprises a plastic support seat (1) and a code disc bearing plate (2); a first through hole (11) penetrating through the upper end and the lower end is formed in the middle of the support seat (1), and a second through hole (21) penetrating through the top face and the bottom face is formed in the middle of the code disc bearing plate (2); the code disc bearing plate (2) is fixed at the lower end (13) of the support seat (1), the first through hole (11) is communicated with the second through hole (21), and the support seat (1) and the code disc bearing plate (2) are sleeved on a motor rear shaft extending from a rear end cover of the motor through the first through hole (11) and the second through hole (21), so that the reflective code disc is fixed on the motor rear shaft. The code disc support is made of plastic, the cost is lower, manufacturing is simpler, and the product competitiveness of the code disc support can be improved to a great extent.

Description

technical field [0001] The invention relates to the field of encoders, in particular to a code disc support, a grating assembly and an optical encoder. Background technique [0002] An optical encoder is a sensor that converts the mechanical geometric displacement on the output shaft into pulses or digital quantities through photoelectric conversion. This is also the most widely used encoder at present. An optical encoder is composed of a grating component and a photoelectric detection device. The grating component is coaxial with the motor. When the motor rotates, the grating component and the motor rotate at the same speed. The detection device composed of light-emitting diodes and other electronic components detects and outputs a number of pulse signals, which can be reflected by calculating the number of output pulses of the photoelectric encoder per second. The current speed of the motor. [0003] The grating assembly generally includes a code disc and a code disc su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/347G01D5/38G01D11/30H02K11/22
CPCG01D5/264G01D5/347G01D5/3473G01D5/38G01D11/30H02K11/22
Inventor 张晨常霞彬荆红民姚亚澜李卫平
Owner SHANGHAI LEIZHI MOTOR