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Ultrasonic strengthening device for gear tooth surfaces of involute cylindrical gears

A gear and ultrasonic technology, applied in the direction of gear teeth, belts/chains/gears, components with teeth, etc., can solve the problems of unfavorable mass production, complex and expensive laser shock strengthening equipment, and high processing costs, to improve service life, The effect of improving stress state and improving processing efficiency

Inactive Publication Date: 2012-06-20
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the laser shock peening equipment is complex and expensive, and the processing cost of processing the entire tooth surface is high, which is not conducive to mass production

Method used

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  • Ultrasonic strengthening device for gear tooth surfaces of involute cylindrical gears
  • Ultrasonic strengthening device for gear tooth surfaces of involute cylindrical gears
  • Ultrasonic strengthening device for gear tooth surfaces of involute cylindrical gears

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The first slide plate 3 and the second slide plate 9 are installed on the guide rail of the base 1, and the first lead screw 2 and the second lead screw 8 are driven by the handle to drive the two slide plates to move linearly. The base disc 4 and the reinforced gear 5 are assembled on the same spindle, and the base disc 4 and the reinforced gear 5 are fastened on the spindle by nuts. The mandrel is assembled on the first slide plate 3 through bearings, and the mandrel can rotate freely. The guide ruler 7 is assembled on the second slide plate 9 . The ultrasonic generating device 15 is installed on the moving pair of the guide rail pair 11 through the clamp 10 , and the ultrasonic processing head 6 is installed on the ultrasonic generating device 15 . The ultrasonic machining head 6 adopts an L shape, which is convenient for inserting into the tooth slot of the strengthened gear 5 .

[0019] By turning the handle, the first lead screw 2 drives the first sliding plate ...

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Abstract

The invention belongs to the technical field of strengthening of tooth surfaces of gears, and discloses an ultrasonic strengthening device for gear tooth surfaces of involute cylindrical gears. The ultrasonic deep rolling technology and the involute generation theory are organically combined, and the ultrasonic strengthening device for gear tooth surfaces of involute cylindrical gears comprises an ultrasonic generating device, an L-shaped ultrasonic machining head, a pressure feeding device, a first slide plate, a second slide plate, a base circular plate, a guide scale and a base. The ultrasonic generating device is used for generating high-frequency high-energy vibration. Initial static pressure is regulated by means of adjusting the pressure feeding device, the guide scale drives the base circular plate and a gear to rotate by the aid of friction force, gear teeth of the strengthened gear and the ultrasonic machining head move in a meshed manner, and simultaneously, ultrasonic strengthening of the surface of the strengthened gear is completed by the ultrasonic machining head in a linear contact manner. Ultrasonic strengthening of the integral tooth surface is realized under joint actions of the high-frequency high-energy vibration and the static pressure, a residual stress layer with a certain depth is formed on the gear tooth surface of the strengthened gear, and accordingly purposes of improving stress state of the gear after the gear is ground and prolonging the service life of the gear are achieved.

Description

technical field [0001] The invention belongs to the technical field of tooth surface strengthening of gears. The ultrasonic deep rolling technology is organically combined with the principle of involute generation, and a set of ultrasonic rolling strengthening devices suitable for surface strengthening of involute cylindrical gear teeth is developed to improve grinding The residual stress state of the gear surface behind the tooth can improve the service life of the gear. Background technique [0002] Grinding is the final process of gear machining after heat treatment and the main finishing method to ensure the accuracy of gears. Due to the contact between the grinding wheel and the machined surface during the grinding process, high heat is generated. Grinding heat causes the local instantaneous temperature in the grinding area to exceed the normal tempering temperature of the carburized steel, which will not only cause the transformation of the local carburizing and quenc...

Claims

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Application Information

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IPC IPC(8): B23F19/00
Inventor 娄志峰马勇陈文蕊王立鼎王晓东
Owner DALIAN UNIV OF TECH
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