Grating disk, starter engagement detection device, detection method and evaluation method

Through the detection method combined with the grating disc and laser displacement sensor, the problem of difficulty in detecting the engine starter meshing state in the prior art is solved, and the accuracy and low cost of quantitative detection of the engagement depth, rotation direction and rotation speed are achieved, and the performance of the starter is evaluated and optimization points are discovered.

CN118274718BActive Publication Date: 2025-03-25HUBEI SHENDIAN AUTOMOBILE ELECTRIC MOTORS CO LTD
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Patent Information

Application Number
CN202410355289.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-26
Publication Date
2025-03-25
Estimated Expiration
2044-03-26

AI Technical Summary

Technical Problem

The prior art is difficult to quickly and accurately detect the meshing state of the engine starter driving gear and the engine flywheel, resulting in difficult time discovering wear and performance problems.

Method used

Using a detection method combined with a grating disc and a laser displacement sensor, the meshing depth, rotation direction and rotation speed of the driving gear are measured in real time and accurately through the plane detection area and grating detection area of ​​the grating disc.

Benefits of technology

The accuracy of quantitative detection of the meshing depth, rotation direction and speed of the drive gear is achieved, and the detection cost is reduced. The performance of the starter is evaluated through data analysis and potential problems or optimization points are discovered.

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Abstract

The present invention discloses a grating disk, which is applied to a driving gear of a starter. The grating disk is coaxially arranged with the driving gear, the grating disk is fixed to one side end face of the driving gear, and an axial hole is arranged in the middle of the grating disk; the grating disk is provided with a first circular contour and a second circular contour which are concentric with the axial hole, the area between the first circular contour and the axial hole constitutes a plane detection area, and the area between the second circular contour and the first circular contour constitutes a grating detection area; the grating detection area is provided with a plurality of groups of grating structures which are arranged adjacent to each other in sequence along the circumferential direction of the grating disk, and each group of the grating structures includes a plurality of steps of different heights which are arranged in sequence along the circumferential direction; the present invention detects the driving gear of the starter by arranging a grating disk in combination with a laser displacement sensor, so as to quantitatively detect the meshing depth, rotation direction and rotation speed of the driving gear, and the detection result is accurate and the detection cost is low.
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