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Multi-shot continuous launching test platform

A test platform and projectile technology, applied in the field of test platforms, can solve problems such as the complex structure of shot peening equipment

Pending Publication Date: 2021-01-26
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many shot peening equipment currently on the market. The structure of these shot peening equipment is relatively complicated, and most of them are suitable for shot peening of large equipment materials.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as Figure 8 , The projectile dial 2 and the cylindrical platform 6 are installed on the motor output shaft with the base hole system, and then the output shaft is driven by the variable speed motor to rotate at a suitable speed. The projectile rolls down from the inclined surface of the magazine 20, and falls into the curved tube of the plastic launch tube through the projectile dial 2. Wherein the magazine and the variable speed motor etc. are all welded on the fixed panel 21 of the truss.

[0024] After the projectile falls into the curved tube, it will be given an initial velocity by the projectile driving device. Such as image 3 , the rotor shaft 11 of the driving device is made into honeycomb coal shape to reduce its weight, so as to ensure quick start when energized. The permanent magnet coil frame 10 and the rotor shaft 11 are also matched thro...

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Abstract

The invention provides a multi-shot continuous launching test platform, belongs to the field of shot peening strengthening, and overcomes the defects that laboratory shot peening equipment cannot meetthe strengthening requirement of small materials and the shot peening speed cannot be adjusted. The multi-shot continuous launching test platform comprises a shot filling device, a shot driving device and a shot launching device. The shots are continuously provided by an open magazine, the shot drives a friction wheel to provide initial velocity, an electromagnetic acceleration coil is powered onwhen the shot touches a pressure sensor, and the shot hits a sample after being accelerated by forward thrust due to an instantly generated magnetic field. The initial speed of the shot can be calculated through a related formula according to the rotating speed of the driving friction wheel. The speed of the shot out of a launching tube can be measured by a laser speed measuring device. The effect of different projectile launching directions is achieved by controlling the angle of the sample. The test platform can be used for a shot peening test in a laboratory, and has the advantages of simple installation, convenient operation, good reliability and the like.

Description

technical field [0001] The invention relates to the field of shot peening, in particular to a test platform capable of realizing continuous firing of multiple projectiles, controllable speed and impact angle. Background technique [0002] Shot peening is a relatively traditional surface strengthening technology. It uses high-speed projectiles to continuously impact the surface of the material to cause elastic-plastic deformation. The plastic deformation layer improves the hardness and wear resistance of the material surface due to work hardening and grain refinement. , In addition, the springback of elastic deformation will form beneficial residual compressive stress in the surface layer and subsurface layer of the material. The improvement of material surface hardness and the injection of residual compressive stress can effectively inhibit and hinder the initiation and propagation of surface cracks. [0003] There are many shot peening equipment currently on the market. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N3/317
CPCG01N3/02G01N3/317
Inventor 胡兴远王成李开发姚尚成
Owner ANHUI UNIV OF SCI & TECH
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