Guiding and locking device for testing degree of impact sensitivity of initiating explosive device

Abstract

The invention particularly relate to a guiding and locking device for testing the degree of impact sensitivity of an initiating explosive device. Through the device, a jumper hammer falls off stably without eccentricity, the secondary impact is prevented, the guiding and locking device mainly comprises a base, the jumper hammer, a guiding device and a locking device, the guiding device and the locking device are both installed on the base, the locking device is located behind the guiding device, the jumper hammer comprises a hammer body, a hammer head, a hammer handle and a pawl mechanism, thehammer handle is installed on the upper end face of the hammer body, the hammer head is installed on the lower end face of the hammer body, guide slots are arranged in the two sides of the hammer body, the pawl mechanism is arranged on the end face, right facing the locking device, of the hammer body, the jumper hammer is clamped on the guiding device of the jumper hammer through the guide slotsin the hammer body, the pawl mechanism is closed under the action of the locking device when the jumper hammer ascends along the guiding device, the pawl mechanism is opened under the action of the locking device when the jumper hammer descends along the guiding device, and the jumper hammer is locked.

Description

technical field [0001] The invention belongs to testing and measuring technology, in particular to a guiding and locking device for testing the impact sensitivity of pyrotechnics. Background technique [0002] In the pyrotechnics industry, it is necessary to conduct impact tests on energetic materials such as pyrotechnics for testing and calibration at all stages of R&D, production, and testing. When used for testing, it is necessary to perform a fixed drop height impact test on a batch of samples to test whether the batch of samples is qualified; while for calibration, a characteristic drop height test is required, and the next weight test should be adjusted according to whether the sample explodes or not. Hammer height to test the excitation height of the sample weight hammer. Regardless of whether it is used for testing or calibration, the falling process of the heavy hammer should be similar to free fall, and it is necessary to accurately test the speed and energy of th...

AI Technical Summary

Problems solved by technology

The measurement error of this method is very large, it varies from time to time, and the randomness is large, and the test results can only be judged qualitatively and cannot be quantified. In many cases, the sound and light are not obvious, resulting in misjudgment and hidden dangers in the use of pyrotechnics , and more than ten of the test personnel are at the test site, the labor intensity of the personnel is high, and the safety is low

[0004] The existing impact sensitivity test equipment has a heavy hammer that is pulled up by a steel wire connected to the hammer head. There is no guiding measure during the falling process, and eccentricity often occurs. When the heavy hammer rebounds after impact, the tester needs to tighten the steel wire again, requiring rapid response. , Sometimes if the response is not timely, it will cause a secondary impact on the pyrotechnics, and the reliability cannot be guaranteed

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