CN218823692U

CN218823692U - Hopkinson pressure bar experiment system test water target chamber device

Info

Publication number: CN218823692U
Application number: CN202022819195.6U
Authority: CN
Inventors: 徐可立; 王凯歌; 汪超琦
Original assignee: Luoyang Liwei Technology Co ltd
Current assignee: Luoyang Liwei Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2023-04-07
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to a test technical field of dynamic mechanical properties, a test water target cabin device of split Hopkinson pressure bar experimental system is disclosed, including device base group, test piston, piston end plate, test target cabin body, sensor gauge head, discharge valve, the test piston shaft of one end of the test target cabin body is connected with the piston end plate in a sealing fit way after passing through the piston seal ring, the piston end plate is connected with the start flange end face of the test target cabin body in a sealing way through the start flange seal ring; a terminal flange sealing ring in a terminal flange end surface groove of the test target cabin body is connected with a terminal stop plate in a sealing manner, and an axial sensor measuring head is arranged on the terminal stop plate; the test target cabin is provided with a sensor measuring head, a radial sensor measuring head, a stop valve and an exhaust valve, and the bottom of the test target cabin is provided with a water drain valve for controlling an actuating element. The utility model discloses can strike the impact load loading that the kinetic energy turned into the water target under-deck with the sample, its structural style is reasonable, manufacturing and experiment are with low costs, and easy operation, test experiment factor of safety are higher.

Description

Hopkinson pressure bar experiment system test water target chamber device

Technical Field

The utility model relates to a test technical field of dynamic mechanical properties especially relates to a hopkinson pressure bar experiment system test water target cabin device.

Background

At present, a Hopkinson pressure bar technical system is a testing device for researching dynamic mechanical properties of materials under high strain rate loading, and in the field of testing impact loading, a test piston at the incident end of a water-filled target cabin is impacted by a high-speed sample or a shot, so that equivalent impact wave load can be obtained in the water-filled target cabin, and a technical structure device of the testing device for researching the material impact resistance mode of an impact environment loading experiment is realized.

The water target cabin testing device is an experimental device for simulating and testing an underwater impact environment by utilizing high-pressure gas of a Hopkinson pressure bar system to drive a high-speed impact body to impact a testing piston at the end part of a water target cabin after water filling, and obtaining equivalent underwater shock wave load in the water target cabin. The test water target cabin device tests and tracks the impact resistance of the material subjected to impact loading by the compression bar system according to the structural device for bearing underwater pressure of the cabin body under a certain unit cross section area and effective length, so that the reliability of the test system after loading can be influenced by selecting the cabin specification of the cabin body and the distribution form of the measurement and control positions on the cabin body.

Disclosure of Invention

The utility model discloses the purpose is for solving the problem that exists among the prior art, provides a Hopkinson pressure bar experiment system test water target cabin device, and its appearance structural style is reasonable, make with the experiment with low costs and easy operation, test experiment factor of safety higher.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a water target cabin testing device of a Hopkinson pressure bar experiment system comprises a device base group, a testing piston, a piston sealing ring, a piston end plate, a starting end flange sealing ring, a testing target cabin body, a sensor measuring head, a stop valve, a radial force sensor measuring head, a sensor measuring head, an exhaust valve, a terminal end flange sealing ring, a terminal end plate, an axial force sensor measuring head and a water drain valve, wherein the testing target cabin body on a system working datum plane is fixed on the device base group; a terminal flange sealing ring arranged in a terminal flange end surface groove of the test target cabin body is tightly and hermetically connected with a terminal stop plate through the circumference of a fastener, and an axial sensor measuring head is arranged on the terminal stop plate; the distribution of the measurement and control positions on the test target cabin body is provided with a sensor measuring head, a radial sensor measuring head and a sensor measuring head, a stop valve for testing a control execution element on the water target cabin is arranged between the sensor measuring head and the radial sensor measuring head, the terminal position of the test target cabin body is provided with an exhaust valve for controlling the execution element, and the bottom position of the test target cabin body is provided with a water drain valve for controlling the execution element.

Due to the adoption of the technical scheme, the utility model has the advantages that:

the utility model provides a Hopkinson pressure bar experiment system test water target cabin device, the design manufacturing process method is simple, and convenient equipment and experimental operation have reduced the test experiment cost, from the loading of structural device simulation impact force under water, and the effectual dangerous structural style and the operation form that take place that has eliminated and reduced the test experiment are simple, and the test effect can satisfy the equivalent loading demand of impact under water, and test operation is controllable, and process repeatability is strong.

Drawings

FIG. 1 is a schematic structural diagram of a water target cabin testing device of a Hopkinson pressure bar experiment system.

In the figure, the device comprises a base group 1, a testing piston 2, a piston sealing ring 3, a piston end plate 4, a starting end flange sealing ring 5, a testing target cabin body 6, a sensor measuring head I7, a stop valve 8, a radial force sensor measuring head 9, a sensor measuring head II 10, an exhaust valve 11, a terminal flange sealing ring 12, a terminal stop plate 13, an axial force sensor measuring head 14 and a water drain valve 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

As shown in fig. 1, a test water target cabin device of a hopkinson pressure bar experiment system comprises a device base group 1, a test piston 2, a piston seal ring 3, a piston end plate 4, a starting end flange seal ring 5, a test target cabin body 6, a sensor head I7, a stop valve 8, a radial force sensor head 9, a sensor head II 10, an exhaust valve 11, a terminal end flange seal ring 12, a terminal end stop plate 13, an axial force sensor head 14 and a drain valve 15, wherein the test target cabin body 6 on a system working reference surface is fixed on the device base group 1, one port of the test target cabin body 6 is provided with the test piston 2, the axial diameter of the test piston 2 is in sealing fit connection with a central aperture on the piston end plate 4 through the piston seal ring 3, and the piston end plate 4 is in circumferential fastening and sealing connection with a fastening piece through the starting end flange seal ring 5 and the starting end flange body end face of the test target cabin body 6; a terminal flange sealing ring 12 arranged in a terminal flange end surface groove of the test target cabin 6 is tightly and hermetically connected with a terminal stop plate 13 through the circumference of a fastener, and an axial sensor measuring head 14 is arranged on the terminal stop plate; the distribution of the measurement and control positions on the test target cabin body is provided with a first sensor measuring head 7, a radial sensor measuring head 9 and a second sensor measuring head 10, a stop valve 8 for testing a control execution element on the water target cabin is arranged between the first sensor measuring head 7 and the radial sensor measuring head 9, the terminal position of the test target cabin body 6 is provided with an exhaust valve 11 for controlling the execution element, and the bottom position of the test target cabin body 6 is provided with a water drain valve 15 for controlling the execution element.

The utility model discloses a test water target cabin technical device structure includes that device base group 1, test piston 2, piston seal 3, end plate 4, top flange seal 5, the test target cabin body 6, sensor head 7, stop valve 8, radial force sensor gauge head 9, sensor gauge head two 10, discharge valve 11, terminal flange seal 12, terminal end board 13, axial force sensor gauge head 14, components such as valve 15 that drains.

The utility model discloses a theory of operation is: the structure device is characterized in that an impact sample of the Hopkinson pressure bar system is used for impacting a test piston body of the water target cabin, the impact kinetic energy of the sample is converted into impact load loading in the water target cabin, and a pressure measurement system on the structure device is used for tracking the transmission process of the test pressure stress in the test water target cabin and obtaining the test stress change experiment.

The specific implementation operation is as follows: the test target cabin body 6 is firmly fixed on a system working datum plane through the device base group 1, so that the axial center line of the cabin body is superposed with the system test center line and the hatch direction corresponds to the system requirement; after a piston sealing ring 3 is arranged on the axial diameter of a testing piston 2 and is in sealing fit with the central aperture on a piston end plate 4, the testing piston is circumferentially fastened and sealed with the initial end flange body end face and the initial end flange sealing ring 5 of the testing target cabin body through fasteners; a terminal flange sealing ring 12 and a terminal stop plate 13 are arranged in a terminal flange end surface groove of the test target cabin body at the other end and are circumferentially fastened and sealed through a fastener, and an axial sensor measuring head 14 is arranged on the terminal stop plate; the first sensor measuring head 7, the radial sensor measuring head 9 and the second sensor measuring head 10 are arranged in the test target cabin body through the distribution of the measurement and control positions, then the stop valve 8, the exhaust valve 11 and the drain valve 15 of the control execution element on the test water target cabin body are arranged on the corresponding cabin body position, after the sealing is reliable, medium water is input to the test experiment requirement through the matching of the stop valve and the exhaust valve, the test water target cabin device is adjusted and completed after the test sensor is connected to the monitoring instrument, and the system loading test application can be carried out.

Claims

1. The utility model provides a Hopkinson pressure bar experimental system test water target cabin device which characterized by: the device comprises a device base group, a test piston, a piston seal ring, a piston end plate, a starting end flange seal ring, a test target cabin body, a sensor measuring head I, a stop valve, a radial force sensor measuring head, a sensor measuring head II, an exhaust valve, a terminal flange seal ring, a terminal end plate, an axial force sensor measuring head and water drainage, wherein the test target cabin body (6) positioned on a system working datum plane is fixed on the device base group (1), one port of the test target cabin body (6) is provided with the test piston (2), the axial diameter of the test piston (2) is in sealing fit connection with a central aperture on the piston end plate (4) through the piston seal ring (3), and the piston end plate (4) is in sealing connection with the starting end flange body end face of the test target cabin body (6) through a starting end flange seal ring (5) by a fastener circumference fastening sensor measuring head; a terminal flange sealing ring (12) arranged in a terminal flange end surface groove of the test target cabin body (6) is tightly and hermetically connected with a terminal stop plate (13) through the circumference of a fastener, and an axial sensor measuring head (14) is arranged on the terminal stop plate; the distribution of the measurement and control positions on the test target cabin body is provided with a first sensor measuring head (7), a radial sensor measuring head (9) and a second sensor measuring head (10), a stop valve (8) for testing a control execution element on the water target cabin is arranged between the first sensor measuring head (7) and the radial sensor measuring head (9), the terminal position of the test target cabin body (6) is provided with an exhaust valve (11) for controlling the execution element, and the bottom position of the test target cabin body (6) is provided with a water drain valve (15) for controlling the execution element.