Experimental fixture of gas generator and experimental method of gas generator
A gas generator and test fixture technology, applied in instruments, manufacturing tools, workpiece clamping devices, etc., can solve the problems of inconvenience and general use, low test accuracy, and inaccurate measurement results, saving installation time and increasing versatility. Effect
Active Publication Date: 2015-06-17
ZHEJIANG GEELY HLDG GRP CO LTD +1
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Problems solved by technology
The equipment generally used for pressure testing of gas generators is to fix the insulated gas generator on the internal fixture integrated with the pressure vessel. The container needs to be opened, and it takes time to fix the gas generator on the fixture and close the container. The longer the time The greater the change in temperature of the long generator, the lower the accuracy of the test
Moreover, this kind of pressure vessel fixed gas generator is generally fixed by multiple bolts, and usually only one specification of the generator is applicable, which is not convenient for general use.
[0003] In addition, in the actual measurement process, it is found that when the general fixture is used to perform multiple pressure tests in the container, even if the temperature is constant, the results of multiple measurements still have large differences, and the measurement results are not accurate enough
Method used
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Embodiment Construction
[0023] figure 1 is a schematic diagram of a test fixture for a gas generator according to an embodiment of the present invention. The test fixture of the gas generator of the present embodiment is detachably installed in the pressure vessel 50, see Figure 5 , the pressure vessel 50 is a vessel for a gas generator, and the test fixture of this embodiment and the pressure vessel 50 can be quickly matched, installed and fixed. The test fixture of the gas generator of the present embodiment includes a main body 10 and a clamping part 20. The main body 10 has an accommodating space 11 for inserting the gas generator. The accommodating space 11 is an open structure and not a closed space. The gas generator can be detonated normally; the clamping part 20 is installed in the accommodating space 11 to clamp the inserted gas generator, and the clamping part 20 is configured to be able to adjust its clamping range to adapt to gas generators of different sizes.
[0024] combine figur...
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The invention provides an experimental fixture of a gas generator and an experimental method of the gas generator. The experimental fixture of the gas generator comprises a main body portion, a clamping portion and a drive component, wherein a containing space which is used for insertion of the gas generator is formed in the main body portion; the clamping portion is arranged in the containing space to clamp the inserted gas generator and set to be capable of adjusting the clamping range; the clamping portion comprises a first clamping component and a second clamping component, and clamping walls which make contact with the gas generator are formed between the first clamping component and the second clamping component; the first clamping component and the second clamping component are both in transmission connection with the drive component, and when the drive component is actuated, the first clamping component and the second clamping component can selectively move to be close to each other or far away from each other, so that the clamping range of the clamping walls is changed. According to the experimental fixture of the gas generator and the experimental method of the gas generator, the time for placing the gas generator in a vessel is saved, the operation is simple and convenient, and the universality is high.
Description
technical field [0001] The invention relates to the technical field of automobile test equipment, in particular to a test fixture for a gas generator and a test method for the gas generator. Background technique [0002] In the development process of automobile airbags, the pressure of the gas generator is a very important parameter. This parameter is obtained by measuring the internal pressure of the gas generator at different temperatures in a closed container with a specific volume. . The equipment generally used for pressure testing of gas generators is to fix the insulated gas generator on the internal fixture integrated with the pressure vessel. The container needs to be opened, and it takes time to fix the gas generator on the fixture and close the container. The longer the time The greater the change in generator temperature, the lower the accuracy of the test. Moreover, this kind of pressure vessel fixed gas generator is generally fixed by multiple bolts, and usua...
Claims
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Login to View More IPC IPC(8): B25B11/00G01D21/00
CPCB25B11/00G01D21/00
Inventor 尹高纪龚洁肖海涛孙立志周大永刘卫国吴成明冯擎峰
Owner ZHEJIANG GEELY HLDG GRP CO LTD