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Drop hammer impact testing apparatus

An impact test, drop hammer technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of insufficient impact energy and inability to carry out underwater impact tests, etc.

Inactive Publication Date: 2012-12-26
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems of insufficient impact energy and the inability to carry out underwater impact tests in the prior art, and provide a drop-weight impact test device capable of carrying out high impact energy and underwater impact tests

Method used

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Embodiment Construction

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. The following examples are illustrative only, and are not construed as limiting the present invention.

[0019] Such as figure 1 As shown, a fixed base 2 is installed in the pool 1, and the fixed base 2 can obtain different heights through different assembly methods, so as to conduct underwater impact tests at different water depths. The fixed platform 3 is fixed on the fixed base 2, and the laboratory fixes the specimen 4 on the fixed platform 3 according to different boundary conditions.

[0020] The tower frame 5 is connected and fixed with the pool 1 at the footing, and the photoelectric velocity measuring device 6 is installed at the footing of the tower frame 5 to measure the impact velocity. A guide rail 7 is arranged on the tower frame 5, and a verticality adjustment assembly 8 is installed between the tower frame 5 and the guide rail ...

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Abstract

The invention discloses a drop hammer impact testing apparatus which is used for impact test of specimens in water. The apparatus comprises a base (2) which is disposed in a water pool (1), a fixing platform (3) which is arranged on the base (2) and used for fixing a to-be-tested specimen (4); a guiding rail (7) which is vertically disposed on the water pool (1) via a tower frame (5) and is above the base (2); and a free falling assembly (9) which is arranged on the guiding rail (7) and falls down from height along the guiding rail (7) so as to impact the specimen (4) placed in water. The apparatus can realize impact test with high impact energy by accurately adjusting the vertical degree of the rail and a test impact speed, and can perform underwater impact tests in different water depth.

Description

technical field [0001] The invention relates to the field of impact test equipment, in particular to a drop weight type impact test device. Background technique [0002] Impact strength or impact toughness is one of the important mechanical properties of materials, which is used to measure the impact resistance and toughness of materials. At present, the methods commonly used to test the impact strength of materials include pendulum impact test and drop weight impact test. [0003] The drop hammer impact test is a method in which the drop weight is freely dropped from a certain height to impact the sample, and by testing various mechanical parameters of the sample, the method of obtaining the impact load capacity of the sample is obtained. The device used is a drop-weight impact testing machine. [0004] The Chinese patent document with the application number 200720087210.4 discloses a drop-weight impact testing machine for measuring the no-deformation transition temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/303
Inventor 张涛徐治平贺章勋张咏鸥
Owner HUAZHONG UNIV OF SCI & TECH
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