Testing device for realizing high-energy shock response spectrum of exploder

Abstract

The utility model belongs to the technical field of aerospace instrument experiments, and discloses a device for realizing a high-energy shock response spectrum test of an exploder, which comprises a power system, a response system and a parameter acquisition system, the power system comprises an air cylinder, an air pump, a compression chamber, an air valve, an air supply pipeline and a power pipeline; the response system comprises a test object table, a test object clamp, a test object and a test object table fixer; the parameter acquisition system comprises a pressure sensor, an arithmetic unit, a display screen and an operation panel. According to the utility model, the problems of poor high-frequency energy response, low-frequency drift, over-high inflection point frequency, over-allowance, stable waveform reproduction and the like in a test are solved through the modes of high-energy pneumatic impact response spectrum equipment structure transformation, response plate design, sensor type selection, waveform transformation of a waveform generator, fastening torque measurement and the like. The device can be used in various research institutes, is not limited to spaceflight instruments, and can also be expanded to instruments in other fields for experimental research.

Description

Technical Field

[0001] The utility model belongs to the technical field of aerospace instrument experiments, and in particular relates to a device for realizing a high-energy impact response spectrum test of an initiator. Background Art

[0002] At present, in the aerospace field, the shock response spectrum test of ultra-high values ​​is mostly carried out by explosive explosion. Only the shock response spectrum required below 20000g is processed by pneumatic shock equipment. On the one hand, the energy that can be achieved by the development of pneumatic shock response spectrum equipment is limited. On the other hand, the method of using pneumatic shock equipment to solve the high-value shock response spectrum test is not well studied. However, the use of pneumatic shock response spectrum equipment to carry out high-value shock response spectrum tests has the advantages of good repeatability and convenient operation.

[0003] An existing horizontal shock response spectrum test bench includes a base, a fixed platform, a response platform, and an impact platform arranged on the base in sequence along the front-to-back direction, an impact cylinder and a return cylinder arranged on the base and located behind the impact platform, as well as a counterweight hole and a counterweight block, the response platform and the impact platform can be arranged to move forward and backward relative to the base, there are two impact cylinders, the axis lines of the two impact cylinders and the axis line of the return cylinder are located in the same plane, and the axis lines of the two impact cylinders are symmetrically distributed on the left and right sides of the axis line of the return cylinder, and the base; by making the counterweight hole open on the upper surface of the impact platform, the counterweight block can be detachably arranged in the counterweight hole, when used under the same impact force, the deadweight of the impact platform can be adjusted by disassembling the counterweight block in the counterweight hole, thereby changing the test index, and the adaptability to the test index is wider. However, the problem with the horizontal shock response spectrum test bench is that it is large in size, high in cost, and can only complete pneumatic shock response experiments with lower energy requirements. For experiments with higher energy requirements, the pneumatic shock of the device cannot meet the requirements.

[0004] Another existing hammer device for high-level impact response spectrum simulation equipment has sliding components on both sides of the hammer body of the hammer device. The sliding components include pulleys. The installation can be completed by directly slidingly connecting the pulleys with the corresponding tracks, which saves time and effort. The hammer body has the function of sliding in one direction on this track to ensure that the hammer device of the high-level impact response spectrum simulation equipment is safe and reliable. In addition, the hammer body is prevented from being disturbed by forces in other directions during movement, which can better ensure the test accuracy. The hammer body of the sliding component installation structure is detachably connected and can be replaced on the hammer body required for the test as needed, with strong versatility. However, the problem with the hammer body device of the high-level impact response spectrum simulation equipment is that its impact response source is applied by the hammer body structure, which causes a high degree of damage to the equipment and has poor repeatability.

[0005] Through the above analysis, the problems and defects of the prior art are as follows:

[0006] (1) It is large in size, high in cost, and can only complete pneumatic impact response experiments with lower energy requirements. For experiments with higher energy requirements, the pneumatic impact of this device cannot meet the requirements.

[0007] (2) The impact response source is applied by a hammer structure, which causes high damage to the equipment and poor repeatability. Utility Model Content

[0008] In view of the problems existing in the prior art, the utility model provides a device for implementing a high-energy impact response spectrum test of an initiator.

[0009] The utility model is implemented as follows: a device for implementing a high-energy impact response spectrum test of an initiator, characterized in that it includes a power system, a response system, and a parameter acquisition system;

[0010] The power system includes a cylinder, an air pump, a compression chamber, an air valve, an air delivery pipeline, and a power pipeline;

[0011] The response system includes a test bench, a test clamp, a test sample, and a test bench fixture;

[0012] The parameter acquisition system includes a pressure sensor, a computing unit, a display screen, and an operation panel.

[0013] Furthermore, the power system is located below the response system; the cylinder is located outside the compression chamber to provide the required gas to the compression chamber; the air pump is located on the side of the air supply pipeline close to the compression chamber; the compression chamber is located below the response system to apply external force to the response system through the power pipeline; and the air valve is located on the side of the power pipeline close to the compression chamber.

[0014] Furthermore, the test bench is located on the upper side of the power pipeline to receive the impact provided by the power pipeline; the test clamp is located on the upper side of the test bench to fix the test sample; the test sample is located on the upper part of the test bench; the test bench fixture is located on the side of the test bench to fix the test bench.

[0015] Furthermore, the pressure sensor is in close contact with the upper surface of the test bench of the same sample, and is used to monitor the impact on the sample; the operator is connected to the pressure sensor via a data line, and is used to analyze and calculate the data collected by the sensor; the display screen is located on the surface of the operator, and the data calculated and output by the operator is visually displayed; the operation panel is located on the surface of the operator, next to the display screen, and is used for manual debugging and display of data that needs to be observed.

[0016] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the utility model are as follows:

[0017] First, in the past, in the aerospace field, the shock response spectrum test of ultra-high value was mostly assessed by using explosive explosion. Only the shock response spectrum required below 20000g was processed by pneumatic shock equipment. On the one hand, this is because the energy that can be achieved by the development of pneumatic shock response spectrum equipment is limited. On the other hand, the method of using pneumatic shock equipment to solve high-value shock response spectrum tests is not well studied. However, the use of pneumatic shock response spectrum equipment to carry out high-value shock response spectrum tests has the advantages of good repeatability and convenient operation. The device involved in the utility model solves the problems of insufficient high-frequency energy response, low-frequency drift, excessive inflection point frequency, and maintaining stable waveform reproduction in the test one by one from the aspects of structural modification of high-energy pneumatic shock response spectrum equipment, response plate design, sensor selection, waveform modification of waveform generator (felt and steel pad), tightening torque measurement, etc., and has been highly recognized.

[0018] Second, the utility model has the advantages of good repeatability and convenient operation by using pneumatic shock response spectrum equipment to carry out high-value shock response spectrum tests.

[0019] The device involved in the utility model solves the difficult problems of insufficient high-frequency energy response, low-frequency drift, excessive inflection point frequency, out-of-tolerance and maintaining stable waveform reproduction in the test by means of structural modification of high-energy pneumatic shock response spectrum equipment, response plate design, sensor selection, waveform generator waveform modification, tightening torque measurement, etc.

[0020] Third, as auxiliary evidence of the inventiveness of the claims of the utility model, it is also reflected in the following important aspects:

[0021] (1) The expected benefits and commercial value of the technical solution of this utility model after transformation are:

[0022] The high-energy impact response spectrum experimental method of the detonator can be used in various research institutes. It is not limited to aerospace equipment, but can also be extended to other fields of equipment for experimental research. In addition to selling equipment, its commercial value can also be realized through leasing and other means.

[0023] (2) The technical solution of this utility model fills the technical gap in the industry at home and abroad:

[0024] Currently, in the field of aerospace equipment experimental technology, the key research objects are pneumatic shocks under low energy and hammer shocks under high energy. However, the pneumatic shock response spectrum experiment under high energy has always been a domestic technical gap. The difficulty lies in that pneumatic shocks are often difficult to achieve the high-energy shocks that hammer shocks can achieve. The device involved in the utility model solves the problems of insufficient high-frequency energy response and low-frequency drift in the test through the structural modification of high-energy pneumatic shock response spectrum equipment, response board design, sensor selection, etc., filling the domestic technical gap.

[0025] (3) Whether the technical solution of the utility model solves the technical problems that people have been eager to solve but have never been able to solve successfully:

[0026] Whether it is an impact response experiment of aerospace equipment or mechanical structures in other fields, it is hoped that the experiment has high repeatability, low cost, simple operation and accurate feedback. The existing experimental equipment can only conduct experiments in low-energy pneumatic or high-energy hammering ways, and the impact of hammering and other methods is highly destructive, the experimental repeatability is poor, and the medium applying the impact will have a large energy loss during the impact path, resulting in a high experimental error. The equipment involved in the utility model solves the problem of insufficient pneumatic impact force encountered in high-energy pneumatic impact that people have been eager to solve, and gas is used as an impact medium to effectively reduce the energy loss caused during the impact, solving the problem of inaccurate experimental data that people have been eager to solve.

[0027] (4) Whether the technical solution of the utility model overcomes technical prejudice:

[0028] In traditional concepts, pneumatics can only be used in impact response experiments under low energy, and high-energy impact can only be achieved by hammering or other methods. The device involved in the utility model uses pneumatic impact to complete high-energy impact experiments, overcoming traditional technical prejudices. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view and a longitudinal section view of a device for implementing a high-energy impact response spectrum test of an initiator provided by an embodiment of the utility model;

[0030] Figure 2 It is a partial cross-sectional view of a control panel of a device for testing the high-energy impact response spectrum of an initiator provided by an embodiment of the utility model;

[0031] Figure 3 The utility model provides a flowchart for implementing a high-energy impact response spectrum test device for an initiator.

[0032] In the figure: 1. Power system; 2. Response system; 3. Parameter acquisition system; 4. Cylinder; 5. Air pump; 6. Compression chamber; 7. Air valve; 8. Sample table; 9. Sample clamp; 10. Sample; 11. Sample table fixture; 12. Pressure sensor; 13. Calculator; 14. Display screen; 15. Operation panel; 16. Air supply pipeline; 17. Power pipeline. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0034] like Figure 1 The figure shows a longitudinal cross-sectional view of the structure of the utility model. Figure 2 It is a longitudinal section view of the side part of the utility model structure. Specifically: the elastic-plastic coal reservoir fracture expansion simulation device includes:

[0035] Power system 1, response system 2, parameter acquisition system 3;

[0036] The power system 1 includes a cylinder 4, an air pump 5, a compression chamber 6, an air valve 7, an air delivery pipeline 16, and a power pipeline 17;

[0037] The response system 2 includes a sample table 8, a sample clamp 9, a sample 10, and a sample table fixture 11;

[0038] The parameter acquisition system 3 includes a pressure sensor 12 , a computing unit 13 , a display screen 14 , and an operation panel 15 .

[0039] Furthermore, the power system 1 includes a cylinder 4, an air pump 5, a compression chamber 6, an air valve 7, an air supply pipe 16, and a power pipe 17; the power system 1 is located below the response system 2; the cylinder 4 is located outside the compression chamber 6 to provide the required gas for the compression chamber 6; the air pump 5 is located on the side of the air supply pipe 16 close to the compression chamber 6; the compression chamber 6 is located below the response system 2 and applies external force to the response system 2 through the power pipe 17; the air valve 7 is located on the side of the power pipe 17 close to the compression chamber 6.

[0040] Furthermore, the response system 2 includes a sample table 8, a sample clamp 9, a sample 10, and a sample table fixture 11; the sample table 8 is located on the upper side of the power pipeline 17 to receive the impact provided by the power pipeline 17; the sample clamp 9 is located on the upper side of the sample table 8 to fix the sample 10; the sample 10 is located on the upper part of the sample table 8; the sample table fixture 11 is located on the side of the sample table 8 to fix the sample table 8.

[0041] Furthermore, the parameter acquisition system 3 includes a pressure sensor 12, an operation unit 13, a display screen 14, and an operation panel 15; the pressure sensor 12 is in close contact with the upper surface of the test bench 8 of the same test piece 10, and is used to monitor the impact on the test piece 10; the operation unit 13 is connected to the pressure sensor 12 via a data line, and is used to analyze and calculate the data collected by the sensor; the display screen 14 is located on the surface of the operation unit 13, and visualizes the data calculated and output by the operation unit 13; the operation panel 15 is located on the surface of the operation unit 13, next to the display screen 14, and is used for manual debugging to display the data that needs to be observed.

[0042] The equipment consisting of the power system, response system and parameter acquisition system is a test equipment used to test the compressive strength or impact response of various materials or products. The following is the working principle of this system:

[0043] Power system 1: The power system first delivers gas into the compression chamber 6 through the cylinder 4. The air pump 5 pushes the gas to the compression chamber 6 in the air delivery pipe 16. When the gas accumulates to a certain pressure in the compression chamber, the air valve 7 opens, allowing the compressed gas to be pushed upward through the power pipe 17.

[0044] Response system 2: Above the power pipeline 17 is a sample table 8, which receives the impact force from the power pipeline. The sample 10 is placed on the sample table and fixed in place by the sample clamp 9. The sample table fixture 11 can prevent the sample table from moving when it is subjected to impact force.

[0045] Parameter acquisition system 3: The pressure sensor 12 is attached to the sample table 8 and can detect the impact force on the sample 10. This data is then sent to the calculation unit 13, which analyzes and calculates the data. The calculation results can be visualized on the display screen 14, and manual debugging and selection of data to be observed can be performed through the operation panel 15.

[0046] The system provided by the utility model is used to measure the response of an object or material after being subjected to a certain pressure or impact. By changing the pressure generated by the power system, the performance of the object under different pressure conditions can be tested. At the same time, the parameter acquisition system can monitor and analyze the test results in real time to provide users with accurate data support.

[0047] The main scheme and effect description of this utility model:

[0048] like Figure 3 As shown, the process of the high energy impact response spectrum test method of the detonator is as follows:

[0049] S1: fixed test bench;

[0050] S2: fixed test piece;

[0051] S3: cylinder air supply;

[0052] S4: Turn off the air pump;

[0053] S5: Compression chamber compresses gas;

[0054] S6: Open the gas valve;

[0055] S7: gas shock;

[0056] S8: parameter collection;

[0057] S9: parameter analysis;

[0058] S10: Parameter visualization output

[0059] In the S4 stage, the experimenter can operate the air pump to deliver gas according to the current gas pressure and the target pressure.

[0060] In the S5 stage, the experimenter can compress and expand the inner wall of the compression chamber and adjust the air pressure according to the current air wall pressure and the target pressure.

[0061] In the S7 stage, the experimenter can repeat the experiment by re-performing the preparation steps according to the experimental requirements.

[0062] Working principle: The cylinder is a gas storage structure that delivers the required gas to the compression chamber. The air pump in the air delivery pipeline is an electromagnetic pump, which can extract gas from the low-pressure side to the high-pressure side and deliver the cylinder gas to the compression chamber. The compression chamber can adjust the indoor gas pressure by adjusting the contraction and expansion of the inner wall of the chamber to achieve the target air pressure shock value. The air pressure adjustment is divided into two steps. The first step is that the air pump extracts gas from the cylinder to the compression chamber to form air pressure. The second step is to make detailed adjustments by adjusting the compression chamber. The placement position of the pressure sensor is the same as that of the sample, which can accurately collect the external pneumatic impact on the sample. The collected parameter information is input into the operator for analysis and calculation and visualized output through the display screen. The staff can observe the required parameters through the operation panel.

[0063] The utility model is mainly used in various research institutes and is not limited to aerospace equipment. It can also be extended to equipment in other fields for experimental research. In addition to selling equipment, its commercial value can also be realized through leasing and other means.

[0064] The device involved in the utility model has been conducting test method research for half a year in the Xi'an laboratory. From the aspects of structural modification of high-energy pneumatic shock response spectrum equipment, response plate design, sensor selection, waveform modification of waveform generator felt and steel pads, tightening torque measurement, etc., the difficult problems of inadequate high-frequency energy response, low-frequency drift, excessive inflection point frequency, out-of-tolerance and maintaining stable waveform reproduction in the test were solved one by one. The debugged waveform met the requirements of the client and the test was highly recognized by the customer.

[0065] The utility model includes a power system, a response system and a parameter acquisition system. Two specific embodiments and specific implementation schemes are listed below:

[0066] Example 1: Impact test equipment

[0067] Power system 1:

[0068] The cylinder 4 provides the gas required by the compression chamber 6 .

[0069] The air pump 5 is located in the air delivery pipeline 16, close to the compression chamber 6, and is used to increase the gas pressure.

[0070] The compression chamber 6 is located below the response system 2 and applies impact force to the response system 2 through the power pipeline 17.

[0071] The gas valve 7 is located in the power pipeline 17, close to one side of the compression chamber 6, and is used to control the release of gas.

[0072] Response System 2:

[0073] The sample table 8 is located above the power pipeline 17 to receive impact from the power system.

[0074] The sample clamp 9 is located above the sample table 8 and is used to clamp and fix the sample 10 .

[0075] The sample 10 is located on the upper portion of the sample table 8 .

[0076] The sample table fixture 11 is located on the side of the sample table 8 and is used to fix the sample table 8 to ensure stable test conditions.

[0077] Parameter acquisition system 3:

[0078] The pressure sensor 12 is in close contact with the upper surface of the test platform 8 and is used to monitor the impact force on the test sample 10 .

[0079] The operator 13 is connected to the pressure sensor 12 via a data line, and is used to analyze and calculate the impact data collected by the sensor.

[0080] The display screen 14 is located on the surface of the computing unit 13 and visually displays the data output by the computing unit.

[0081] The operation panel 15 is located beside the surface of the operator 13 and is used for manual debugging and observing required data.

[0082] Example 2: Upgradable version of impact test equipment

[0083] This embodiment is an upgraded version of Embodiment 1, including some additional features and improvements:

[0084] Power system 1:

[0085] A temperature control module was added to ensure the constancy of the test temperature.

[0086] An adjustable air pressure system is introduced to adjust the impact force according to test requirements.

[0087] Response System 2:

[0088] Introduced a versatile specimen grip that can accommodate different types of specimens.

[0089] The adjustable height function of the specimen table has been added to accommodate specimens of different sizes and shapes.

[0090] Parameter acquisition system 3:

[0091] The parameter acquisition system has been expanded to simultaneously monitor multiple test parameters such as temperature, pressure, and vibration.

[0092] Remote data storage and access capabilities are provided so that users can monitor and track data in real time during the experiment.

[0093] This upgraded version of the device offers greater flexibility and functionality to meet a wider range of testing needs.

[0094] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0095] The above description is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A device for testing the high energy impact response spectrum of an initiator, characterized in that: Including power system, response system, parameter acquisition system; The power system includes a cylinder, an air pump, a compression chamber, an air valve, an air delivery pipeline, and a power pipeline; The response system includes a test bench, a test clamp, a test sample, and a test bench fixture; The parameter acquisition system includes a pressure sensor, a computing unit, a display screen, and an operation panel.

2. The device for implementing the high energy impact response spectrum test of the initiator according to claim 1, characterized in that: The power system is located below the response system; the cylinder is located outside the compression chamber to provide the required gas for the compression chamber; the air pump is located on the side of the air supply pipeline close to the compression chamber; the compression chamber is located below the response system to apply external force to the response system through the power pipeline; the air valve is located on the side of the power pipeline close to the compression chamber.

3. The device for implementing the high energy impact response spectrum test of the initiator according to claim 1, characterized in that: The test bench is located on the upper side of the power pipeline to receive the impact provided by the power pipeline; the test clamp is located on the upper side of the test bench to fix the test sample; the test sample is located on the upper part of the test bench; the test bench fixture is located on the side of the test bench to fix the test bench.

4. The device for implementing the high energy impact response spectrum test of the initiator according to claim 1, characterized in that: The pressure sensor is in close contact with the upper surface of the test bench and is used to monitor the impact on the test sample; the operator is connected to the pressure sensor via a data line and is used to analyze and calculate the data collected by the sensor; the display screen is located on the surface of the operator and visualizes the data output by the operator; the operation panel is located on the surface of the operator, next to the display screen, and is used for manual debugging and display of data that needs to be observed.

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