Tension-compression type multifunctional Hopkinson equipment transmitting device
By designing a tension-compression type multifunctional Hopkinson test device, the problem of unstable test data in small rod diameter Hopkinson test devices was solved, enabling tensile and compression testing of materials, meeting the needs of multifunctional materials mechanics research, and improving experimental efficiency and data stability.
Patent Information
- Application Number
- CN202421400945.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-06-19
AI Technical Summary
Existing Hopkinson bar experimental setups produce unstable test data for tensile and compressive components of materials with small bar diameters, and traditional setups are difficult to meet the needs of multifunctional material mechanical property research.
A tension-compression type multifunctional Hopkinson test launcher was designed, comprising a tension cylinder, a launch valve body, a launch exhaust solenoid valve, a launch barrel, a guide rail platform, and a launch conversion device. The cylinder generates air pressure to push the bullet to impact, thereby realizing the tension and compression testing of materials.
It improves experimental efficiency and data stability, enabling dynamic loading and multifunctional testing of materials, thus meeting the needs of high strain rate material research.
Smart Images
Figure CN223449625U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power and material science test technical field especially relates to a tension and compression type multifunctional hopkinson device launching device. BACKGROUND
[0002] At present, in view of the gas as medium operation simple, the repeatability strong pneumatic acceleration of hopkinson bar experiment becomes the general power source of hopkinson bar experimental device, and with the development of material research to higher strain rate, it requires that experimental equipment provides greater power, and increasing gas pressure is an application method, but also requires to improve the safety operation standard of whole experimental device, needs to make overall improvement to the whole experimental device. In the process of material mechanics research, only the compression and tensile properties are not enough, and the material mechanics characteristics often lose the original function or even completely fail due to factors such as shape and structure. Therefore, it is necessary to build a multifunctional test device that can not only study the tensile and compressive properties of materials, but also study the failure of material components and extended mechanical properties.
[0003] At present, the independent hopkinson bar experimental device, but all due to the bar diameter factor makes that small bar diameter hopkinson experimental device obtains the unstable state of the pulse value of the test data of the tensile and compressive components of the research material, especially the launching device of hopkinson device experiment, therefore, a tension and compression type multifunctional hopkinson device launching device needs to be developed. UTILITY MODEL CONTENT
[0004] In order to overcome the defects of the prior art, the utility model aims at providing a tension and compression type multifunctional hopkinson device launching device.
[0005] In order to realize the above-mentioned invention purpose, the utility model adopts the technical scheme that:
[0006] A tension and compression type multifunctional hopkinson device launching device, comprising: a tensile cylinder, a launching valve body device, a launching exhaust electromagnetic valve, a launching barrel, a guide rail platform, a launching conversion device, the guide rail platform is provided with the launching conversion device, the launching conversion device is provided with the launching barrel parallel to the guide rail, one side of the launching conversion device is connected with the launching valve body device, one end of the launching valve body device is provided with the tensile cylinder, the other end of the launching valve body device is provided with the launching exhaust electromagnetic valve, the barrel mouth of the launching barrel is provided with a bullet rod speed meter, and the bullet rod speed meter is fixedly connected to the guide rail platform, the launching valve body device is provided with a tensile cylinder inlet electromagnetic valve, a tensile cylinder exhaust electromagnetic valve and a pressure gauge.
[0007] Due to the adoption of the technical scheme as above, the utility model has the following beneficial effects:
[0008] A tension-compression multifunctional Hopkinson device launching device can make the tension cylinder produce air pressure to push the bullet in the cavity to impact, the device is convenient to operate, has good reliability and can significantly improve the experimental efficiency. The combined tension-compression Hopkinson device can effectively provide a new application for dynamic loading of material research rod system test change operation process. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is a structural schematic view of a tension-compression multifunctional Hopkinson device launching device.
[0010] In the figure: 1, tension cylinder, 2, launching valve body device, 3, launching exhaust electromagnetic valve, 4, launching cannon, 5, guide rail platform, 6, launching conversion device. DETAILED DESCRIPTION
[0011] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.
[0012] As Figure 1 shown, a tension-compression multifunctional Hopkinson device launching device, comprising: a tension cylinder 1, a launching valve body device 2, a launching exhaust electromagnetic valve 3, a launching cannon 4, a guide rail platform 5, a launching conversion device 6, the guide rail platform 5 is provided with the launching conversion device 6, the launching conversion device 6 is provided with the launching cannon 4 parallel to the guide rail, one side of the launching conversion device 6 is connected with the launching valve body device 2, one end of the launching valve body device 2 is provided with the tension cylinder 1, the other end of the launching valve body device 2 is provided with the launching exhaust electromagnetic valve 3.
[0013] The barrel mouth 4 of the launching cannon is provided with a bullet rod speed meter, and the bullet rod speed meter is fixedly connected to the guide rail platform 5 and is used for bullet rod speed measurement.
[0014] The launching valve body device 2 is provided with a tension cylinder intake electromagnetic valve, a tension cylinder exhaust electromagnetic valve and a pressure gauge.
[0015] A multifunctional tension-compression Hopkinson device composed of a tension rod launching device, comprising: a shared platform, the shared platform is composed of a main rack and a device extension rack, the main rack and the device extension rack are provided with a guide rail base, the guide rail base is provided with a guide rail, one end of the guide rail is provided with the tension rod launching device, and the other end of the guide rail is provided with a buffer device; the tension rod launching device and the buffer device are sequentially provided with an incident rod piece, a projection rod piece and an absorption rod piece; the incident rod piece is located in a sliding sleeve of a sliding sleeve rod center support frame, and the sliding sleeve rod center support frame is fixedly connected to a guide rail workbench surface. The incident rod piece and the projection rod piece are provided with a test piece conversion device, and the test piece conversion device is fixedly connected to the guide rail workbench surface.
[0016] The rod launching device is fixed on the guide rail table, the launching port of the rod launching device is connected with the air inlet of the stretching cylinder through the high-pressure air hose, the stretching cylinder exhaust manual valve and the stretching cylinder exhaust electromagnetic valve in sequence, the air inlet of the stretching cylinder is provided with the stretching experiment air inlet electromagnetic valve and the pressure gauge, the stretching experiment rod passes through the bullet speed measuring instrument, the rod launching device and the stretching cylinder support frame in sequence, and is supported through the rod support device, one end of the stretching experiment rod close to the absorbing rod is the flange end, the other end of the stretching experiment rod is provided with the compression experiment rod, the experiment adapter is arranged at the close end of the stretching experiment rod and the compression experiment rod, the compression experiment rod is supported through the rod support device, the other end of the compression experiment rod is provided with the bullet speed measuring instrument and the compression cannon tube fixed on the water platform, the compression cannon tube is supported through the cannon tube support frame and fixed on the water platform, the experimental bullet is arranged in the compression cannon tube, the other end of the compression launching device is provided with the compression cylinder fixed on the water platform, the launching end of the compression cylinder is connected with the compression cannon tube through the compression cylinder exhaust electromagnetic valve and the compression cylinder exhaust manual valve in sequence, the compression cylinder control valve group is provided with the air inlet electromagnetic valve and the pressure gauge, and the assembly combination forms a dynamic loading device of the tension and compression integrated multifunctional Hopkinson equipment under the same environmental state, which provides an effective scheme for application test.
[0017] During operation, by using the characteristics of the new type of cylinder and medium gas, and adjusting the inner sleeve air flow path of the launching device, an obvious instantaneous pressure difference can be formed to drive the movement of the closed piston in the device, instantaneous impact, and impact rod, impact loading on the incident rod, convert the axial movement of the loading rod into radial movement, so as to apply a certain radial expansion speed to the rod, realize impact loading of the rod, and convert the corresponding rod system by using the launching system of the device, so as to realize tension and compression test application.
[0018] During operation, by using the characteristics of the new type of cylinder and medium gas, and adjusting the inner sleeve air flow path of the launching device, an obvious instantaneous pressure difference can be formed to drive the movement of the closed piston in the device, instantaneous impact, and impact rod, impact loading on the incident rod, convert the axial movement of the loading rod into radial movement, so as to apply a certain radial expansion speed to the rod, realize impact loading of the rod, and convert the corresponding rod system by using the launching system of the device, so as to realize tension and compression test application.
Claims
1. A multifunctional tension-compression Hopkinson device launcher, characterized by: include: A stretching cylinder (1), a launching valve body device (2), a launching exhaust solenoid valve (3), a launching gun barrel (4), a guide rail platform (5), and a launching conversion device (6). The guide rail platform (5) is provided with a launching conversion device (6), a launching gun barrel (4) parallel to the guide rail is provided on the launching conversion device (6), one side of the launching conversion device (6) is connected to a launching valve body device (2), one end of the launching valve body device (2) is provided with a stretching cylinder (1), and the other end of the launching valve body device (2) is provided with a launching exhaust solenoid valve (3); a pipe mouth of the launching gun barrel (4) is provided with a spring rod velocimeter, and the spring rod velocimeter is fixedly connected to the guide rail platform (5); and a stretching cylinder air inlet solenoid valve, a stretching cylinder exhaust solenoid valve and a pressure gauge are provided on the launching valve body device (2).