Device used for testing explosive grain shear force

A shear force, grain column technology, applied in the direction of using a stable shear force to test the strength of materials, measuring devices, instruments, etc., can solve the problem of the lack of effective detection methods for small shear forces, and limited data analysis and calculation capabilities. , the detection process and the complexity of the detection device, etc., to achieve the effect of protection and safety, easy operation of the device, and reduction of interference.

Inactive Publication Date: 2019-04-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no good method for the shear test of explosive grain in China. Due to the limitation of sensor technology and related detection technology, the existing shear test lacks effective detection means for small shear force. At the same

Method used

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  • Device used for testing explosive grain shear force
  • Device used for testing explosive grain shear force
  • Device used for testing explosive grain shear force

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A device for testing the shear force of an explosive grain, comprising: a frame 1, a first pull rod 2, a shear force sensor 3, a second pull rod 4, a pre-pressure mechanism 5, a steel wire rope 6, a weight 7, and a pressure rod 8. Powder column 9, motor 10, gearbox 11, jacket 12, slider 13 and support frame 14;

[0030] The motor is used to provide pulling force to the device; the force generated by the motor is transmitted to the gearbox through the bearing, and the gearbox is used to adjust the pulling force; the gearbox is connected to the bearing of the frame, and the bearing meshes with the relevant gear to drive the first pull rod in the tension Left and right movement is realized under pulling; the shear force sensor is movably connected with the ends of the first pull rod and the second pull rod; Powder column;

[0031] The pre-pressure mechanism is composed of a connecting rod, a wire rope and a weight; one end of the connecting rod is installed movably, and t...

Embodiment 2

[0050]A device for testing the shear force of an explosive grain, comprising: a frame 1, a first pull rod 2, a shear force sensor 3, a second pull rod 4, a pre-pressure mechanism 5, a steel wire rope 6, a weight 7, and a pressure rod 8. Powder column 9, motor 10, gearbox 11, jacket 12, slider 13 and support frame 14;

[0051] The motor is used to provide pulling force to the device; the force generated by the motor is transmitted to the gearbox through the bearing, and the gearbox is used to adjust the pulling force; the gearbox is connected to the bearing of the frame, and the bearing meshes with the relevant gear to drive the first pull rod in the tension Left and right movement is realized under pulling; the shear force sensor is movably connected with the ends of the first pull rod and the second pull rod; Powder column;

[0052] The pre-pressure mechanism is composed of a connecting rod, a wire rope and a weight; one end of the connecting rod is installed movably, and th...

Embodiment 3

[0058] A device for testing the shear force of an explosive grain, comprising: a frame 1, a first pull rod 2, a shear force sensor 3, a second pull rod 4, a pre-pressure mechanism 5, a steel wire rope 6, a weight 7, and a pressure rod 8. Powder column 9, motor 10, gearbox 11, jacket 12, slider 13 and support frame 14;

[0059] The motor is used to provide pulling force to the device; the force generated by the motor is transmitted to the gearbox through the bearing, and the gearbox is used to adjust the pulling force; the gearbox is connected to the bearing of the frame, and the bearing meshes with the relevant gear to drive the first pull rod in the tension Left and right movement is realized under pulling; the shear force sensor is movably connected with the ends of the first pull rod and the second pull rod; Powder column;

[0060] The pre-pressure mechanism is composed of a connecting rod, a wire rope and a weight; one end of the connecting rod is installed movably, and t...

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PUM

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Abstract

The invention relates to a device used for testing explosive grain shear force, and belongs to the field of explosive grain performance detection. The device is a novel testing method and a detectionmeans, which are designed by aiming at the explosive grain, and can test the shear force and the shear force threshold value of the explosive grain. The testing device can test the shear force and theshear force threshold value of the explosive grain under certain pre-pressure or pre-tension, a set temperature and set shear speed, in addition, all data of the explosive grain in a sheared processcan be detected in real time, and a shear force deformation curve is automatically drawn. By use of the device, two modes, including the pre-pressure and the pre-tension, can be provided, and different conditions of the sheared working condition of the explosive grain are simulated. In a design process, the device fully considers the factor of experiment operation safety, and the safety of experiment personnel can be effectively protected.

Description

technical field [0001] The invention relates to a device for testing the shear force of an explosive grain column, which belongs to the field of performance testing of an explosive grain column. Background technique [0002] The shear performance of explosive grain directly affects its quality and safety. The adaptability and rate of change of the explosive grain can be understood through the test of the shear performance of the explosive grain, which has important practical significance for its application. [0003] At present, there is no good method for the shear test of explosive grain in China. Due to the limitation of sensor technology and related detection technology, the existing shear test lacks effective detection means for small shear force. At the same time, the detection process and detection device It is too complicated, and the later data analysis and calculation capabilities are quite limited. Therefore, it is of great significance to develop a set of effici...

Claims

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Application Information

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IPC IPC(8): G01N3/24G01N3/04
CPCG01N3/04G01N3/24G01N2203/0025
Inventor 李丽洁王玮哲金韶华刘云飞陈煜王俊英田庚凡陈树森
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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