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Bull gear involute sample plate

A technology of involutes and large gears, which is applied in the direction of measuring devices, instruments, and mechanical devices, etc., to achieve good market application prospects and promotion value, small size, and high involute precision.

Active Publication Date: 2017-03-08
金齿传动科技(大连)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For base circle radius r b There are no relevant national standards and industry standards for large gear involute models >400mm

Method used

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  • Bull gear involute sample plate
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Experimental program
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Effect test

Embodiment Construction

[0019] The technical solution is described in detail in conjunction with the accompanying drawings and specific embodiments.

[0020] (1) Implementation on a CMM without a rotary table

[0021] Large gears can be measured directly with a three-coordinate measuring machine. This type of large gear measuring instrument does not have a rotary platform, and directly uses the X and Y coordinates of the left and right tooth surfaces on the middle section of the gear tooth profile to evaluate the tooth profile, Tooth pitch, radial jump and other deviations. Place the large gear involute model on the workbench, adjust the auxiliary support ball head screw 3, make the auxiliary support ball head screw 3 touch the worktable of the coordinate measuring machine, and manually apply a pretightening force of about 5N.

[0022] Measure the shape of the mid-section of the base circle on one side of the large gear involute sample. If the exact value of the base circle radius of the large gear ...

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Abstract

The invention belongs to the precision gear test technology field and relates to a bull gear involute sample plate used for calibrating a bull gear measuring instrument. The invention provides the bull gear involute sample plate. Aiming at a base circle radius rb which is greater than 400mm, the bull gear involute sample plate comprises an involute sample plate block, a sector base circle block, an auxiliary supporting ball screw, a positioning pin and a connection screw. The bull gear involute sample plate is used for calibrating gear measuring instrument involute tooth profile deviation measurement precision. The bull gear involute sample plate is provided with the sector base circle block which is taken as a processing reference, a measuring reference and a positioning reference of an involute. Because of unification of the references, measurement precision of a bull gear involute is increased. Through measuring coordinates of a base circle of at least three points or radial jump, a center of circle position of the sample plate base circle is determined. The sample plate is used for calibration of the bull gear measuring instrument with or without revolving platform used for measuring a bull gear. The sample plate possesses advantages that the structure is simple, the size is small, involute precision is high and so on. The sample plate satisfies calibration of the bull gear measuring instrument with more than 4 level precision, and a good market application prospect and a good popularization value are possessed.

Description

technical field [0001] The invention belongs to the technical field of precision gear testing, and relates to a large gear involute sample plate for calibrating a large gear measuring instrument. Background technique [0002] Large gears are widely used in rubber and plastic machinery, large construction machinery, marine resources exploration equipment, large ships, wind power, nuclear power and other fields, and the requirements for gear precision are getting higher and higher. The measurement of the large gear is usually carried out with a gantry-type three-coordinate measuring machine or other special equipment. In order to improve the measurement accuracy of the large gear to the level 4 and above accuracy in the national standard GB / T10095.1-2008, the large gear test equipment must be calibrated. The total deviation of the tooth profile of the gear is a must-check item in the accuracy index of the involute gear. The standard device used to calibrate the involute measu...

Claims

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Application Information

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IPC IPC(8): G01B21/04G01B21/20G01B5/20
CPCG01B5/202G01B21/042G01B21/20
Inventor 凌四营娄志峰王立鼎王晓东李军贾颖
Owner 金齿传动科技(大连)有限公司
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