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Friction sensitivity test mechanical pressurizing device

A technology of mechanical pressurization and friction sensitivity, which is applied in the fields of remote precise pressure control and pressurization devices with protective facilities, friction sensitivity test mechanical pressurization devices, and can solve the problems of poor repeatability of pressure control, easy oil leakage of hydraulic machines, and poor pressure. Stability and other issues, to achieve precise and stable pressure control, eliminate oil pollution, and simplify the pressurization process

Active Publication Date: 2021-03-16
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing mechanical pressurization device for friction sensitivity test has the following problems: (1) The traditional hydraulic machine is prone to oil leakage, and the pressure control repeatability is poor when the pointer pressure gauge is used. The pressure is unstable at the moment of friction and impact, and the pressure fluctuation reaches 3-5 MPa; ) The test process requires repeated pressurization and pressure relief, and the loading process is complicated and time-consuming; (3) It is necessary to manually pull away the separation hook to lower the sliding column sleeve to expose the sample, which is inefficient; (4) No protective facilities are installed, and the impact There are potential safety hazards in the instant column hitting and sample flying out

Method used

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  • Friction sensitivity test mechanical pressurizing device
  • Friction sensitivity test mechanical pressurizing device

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Such as Figure 1 to Figure 5 As shown, this embodiment provides a friction-sensitive mechanical pressing device. It is characterized in that it includes a reaction chamber 1, a pressure sleeve 2, an upper ejector 3, an upper plunger 4, a sample 5, a lower plunger 6, a plunger sleeve 7, a lower top sleeve 8, an ejector rod 9, and a servo press 10 and rack 11;

[0047] The reaction chamber 1 is composed of a top plate 1-1 and a column 1-2, and the top plate 1-1 is fixedly installed on the top of the frame 11 through four columns 1-2 to form a semi-open chamber;

[0048] The pressure sleeve 2 is a fan-shaped ring, installed on the top plate 1-1, and can move up and down under the action of the cylinder, and forms a semi-open circular chamber with the stud sleeve 7 after being pressed down;

[0049] The upper top column 3 is a cylindrical structure, located in the center of the inner side of the pressure sleeve 2, and fixedly installed under the top plate 1-1;

[0050] ...

Embodiment 2

[0077] Such as Figure 1 to Figure 5 As shown, this embodiment provides a friction-sensitive mechanical pressing device. It is characterized in that it includes a reaction chamber 1, a pressure sleeve 2, an upper ejector 3, an upper plunger 4, a sample 5, a lower plunger 6, a plunger sleeve 7, a lower top sleeve 8, an ejector rod 9, and a servo press 10 and rack 11;

[0078] The reaction chamber 1 is composed of a top plate 1-1 and a column 1-2, and the top plate 1-1 is fixedly installed on the top of the frame 11 through four columns 1-2 to form a semi-open chamber;

[0079] The pressure sleeve 2 is a fan-shaped ring, installed on the top plate 1-1, and can move up and down under the action of the cylinder, and forms a semi-open circular chamber with the stud sleeve 7 after being pressed down;

[0080] The upper top column 3 is a cylindrical structure, located in the center of the inner side of the pressure sleeve 2, and fixedly installed under the top plate 1-1;

[0081] ...

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Abstract

The invention discloses a friction sensitivity test mechanical pressurizing device, which is characterized by comprising a reaction cavity, a pressing sleeve, an upper jacking column, an upper striking column, a test sample, a lower striking column, a striking column sleeve, a lower jacking sleeve, a jacking rod, a servo press and a rack. The device adopts the servo press to perform pressure loading on a friction sensitivity test sample, and a device structure with pressurizing, positioning and protecting effects is designed, so that the extrusion pressure can be precisely controlled, the automatic control of the operation process is realized, and meanwhile, the potential safety hazard caused by column striking and test sample flying out is avoided; and the accuracy of the friction sensitivity test and the safety of the operation process are ensured.

Description

technical field [0001] The application belongs to the technical field of propellant and explosive evaluation, and relates to a friction sensitivity test mechanical pressurization device, in particular to a pressurization device with remote precise pressure control and protective facilities. Background technique [0002] Explosives are often stimulated by various external energies in the process of production, storage, transportation and use. Among these forms of energy stimulation, friction is a common form, and the heat caused by friction is the one that causes the most accidents. A form of energy, so friction sensitivity is an important issue for the stability of explosives. At present, domestic propellant and explosive friction sensitivity measurement adopts Kozlov friction pendulum. This friction pendulum is composed of instrument body, pressurization device and pendulum. Pull away the separation hook to expose the sample, then pressurize to the specified pressure, swin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/06
CPCG01N19/06Y02E30/30
Inventor 赵娟封雪松冯博薛乐星潘文席鹏冯晓军
Owner XIAN MODERN CHEM RES INST
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