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Positioning device for supporting and radially adjusting split hopkinson bar

A technology of Hopkinson rods and positioning devices, which is applied in the direction of measuring devices, analysis materials, instruments, etc., can solve the problems of low positioning accuracy and no unified positioning reference, and achieve high positioning accuracy and reduce friction.

Inactive Publication Date: 2013-12-18
中国人民解放军陆军军官学院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a separate Hopkinson rod support and radial adjustment and positioning device to solve the problems in the prior art that the system does not have a unified positioning reference and the positioning accuracy is not high

Method used

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  • Positioning device for supporting and radially adjusting split hopkinson bar
  • Positioning device for supporting and radially adjusting split hopkinson bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Please refer to figure 1 , a separate Hopkinson rod support and radial adjustment and positioning device, mainly including a guide rail 2, and a center bracket 3 that can move along the guide rail 2, the lower end of the center bracket 3 is placed on the guide rail 2 through a slide seat 1; the center bracket 3. It includes an openable upper frame body 32 and a lower frame body 33. The lower frame body 33 is symmetrically provided with an adjustable screw advance and retreat device 35. The front end of the screw advance and retreat device 35 is equipped with a roller 31. The roller 31 can be moved through the screw advance and retreat device 35. Continuous adjustment, the lower frame body 33 is screwed with a locking pin 34 perpendicular to the screw advance and retreat device 35. After the roller 31 is adjusted, the screw advance and retreat device 35 can be locked by the lock pin 34, thereby adjusting the position of the roller 31. Fixed, at least two screw advance an...

Embodiment 2

[0027] Please refer to figure 2 , a separate Hopkinson rod support and radial adjustment and positioning device, mainly including a guide rail 2, and a center bracket 3 that can move along the guide rail 2, the lower end of the center bracket 3 is placed on the guide rail 2 through a slide seat 1; the center bracket 3. It includes an openable upper frame body 32 and a lower frame body 33. The lower frame body 33 is symmetrically provided with an adjustable screw advance and retreat device 35. The front end of the screw advance and retreat device 35 is equipped with a roller 31. The roller 31 can be moved through the screw advance and retreat device 35. Continuous adjustment, suitable for different rod diameters.

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PUM

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Abstract

The invention provides a positioning device for supporting and radially adjusting a split hopkinson bar, aiming to solve the problem of low positioning accuracy caused by the fact that no unified locating basis exists in a system in the prior art, and relating to the field of experimental equipment for mechanical property of materials. The positioning device mainly comprises a guide rail, and a center bracket capable of moving along the guide rail, wherein the lower end of the center bracket is arranged on the guide rail through a slide carriage; the center bracket comprises an upper bracket body and a lower bracket body capable of opening and closing; adjustable spiral advancing and retreating devices are symmetrically arranged on the lower bracket body; a roller is arranged at the front end of each spiral advancing and retreating device; the rollers can be continuously adjusted through the spiral advancing and retreating devices. The guide rail and the center bracket disclosed by the invention have unified horizontal and lateral bases; the positioning accuracy is high; transverse movement of a bar system in a hitting process can be prevented; the positions of the rollers can be adjusted by the spiral advancing and retreating devices; the bar systems with different bar diameters can be supported and adjusted, so that the requirements of a laboratory requiring a plurality of launchers with different bar diameters are met.

Description

Technical field: [0001] The invention relates to the field of experimental equipment for dynamic mechanical properties of materials, in particular to a separate Hopkinson rod support and radial adjustment positioning device. Background technique: [0002] Split Hopkinson rod is an effective experimental device for studying the dynamic mechanical properties of materials under one-dimensional stress state. Since Kolsky invented it in 1949 and used it to study the dynamic mechanical properties of materials under one-dimensional stress state, the experimental device has been improved a lot, and the experimental technology has been continuously improved. Its application fields range from the initial study of the dynamic mechanical properties of metal materials to the current study of the dynamic mechanical properties of rocks, concrete, ceramics, polymers, energetic materials, foam materials and other materials; in addition, it is also used to study some Dynamic response and dam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02
Inventor 姜锡权徐可立方文敏房凌晖肖桂凤张开闩
Owner 中国人民解放军陆军军官学院