High-Impact Vibration Test Device Resistant to High and Low Temperatures and Its Usage Method

Abstract

The present invention relates to the field of testing or analyzing materials by measuring the chemical or physical properties of materials, and particularly relates to a high-impact vibration testing device resistant to high and low temperatures and a using method thereof, including an impact terminal, which includes an output end that directly impacts the product; a power ram, which includes an impact end that pushes the impact terminal to move and a gas path; a reset member; a cylinder block, which includes a cavity suitable for placing the impact terminal and the power ram; step S1, introducing high-pressure gas into the cavity through an air inlet and the gas path; step S2, the impact end contacts the input end to drive the impact terminal to move in the cavity, and stop introducing high-pressure gas into the cavity; step S3, the output end impacts the product and then the impact terminal stops moving; step S4, the reset member works to pull the impact terminal back to its original position. The present invention provides a high-impact vibration testing device resistant to high and low temperatures and a using method thereof, improving the adaptability of the vibration device to temperature and being able to provide a large impact force.

Description

Technical Field

[0001] The present invention relates to the field of testing or analyzing materials by measuring the chemical or physical properties of materials, and particularly to a high-impact vibration testing device resistant to high and low temperatures and a usage method thereof. Background Art

[0002] An electromagnetic vibration device, or an electromagnetic vibration test bench, whose working principle is based on electromagnetic induction; it consists of a magnetic field system and an energized coil. When an electric current passes through the coil, according to Ampere's law, the coil will be subjected to a force in the magnetic field, and the magnitude of this force is related to the current intensity, the number of turns of the coil, and the magnetic field intensity; the specific process of vibration generation is as follows: after the energized coil is subjected to the electromagnetic force, it will drive the vibration table to move. The vibration table and the coil are usually rigidly connected or connected through a transmission mechanism. When the coil reciprocates in the magnetic field, the end face or the table of the vibration device also reciprocates accordingly. By changing the frequency of the current, the frequency of vibration can be changed; by changing the magnitude of the current, the amplitude of vibration can be changed.

[0003] Due to the limitation of the temperature physical characteristics of magnetic force, the vibration device driven by electromagnetic induction can only ensure stable operation in the temperature range of -20 to 100 °C; the electromagnetic vibration device cannot operate stably in the temperature ranges less than -20 °C and greater than 100 °C, and there is a technical problem of a small working temperature range of the electromagnetic vibration device. There is an urgent need to design a new testing device.

[0004] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application, and therefore, it may include information that does not constitute the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-impact vibration testing device resistant to high and low temperatures and a usage method thereof to solve the above problems.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A high-impact vibration testing device resistant to high and low temperatures, comprising:

[0008] An impact terminal, which includes an output end that directly impacts the product;

[0009] A power ram, which includes an impact end that pushes the impact terminal to move and a gas path that serves as a gas channel;

[0010] A reset member;

[0011] A cylinder block, which includes a cavity suitable for placing the impact terminal and the power ram, and an air outlet and an air inlet are provided on the side wall of the cylinder block;

[0012] The intake port ventilates the cavity through an air path to drive the power ram to move, so as to be suitable for providing a sufficiently large impact force in both high-temperature and low-temperature situations. The power ram drives the impact terminal to move a certain distance and then separates from the power ram. After the impact terminal continues to move a certain distance, it is pulled back to its original position by a reset member.

[0013] In an alternative embodiment, the cylinder block further includes a first blocking surface and a second blocking surface that limit two extreme positions of the impact terminal;

[0014] The impact terminal further includes an input end located between the first blocking surface and the second blocking surface;

[0015] One end of the reset member is connected to the input end, and the other end of the reset member contacts the first blocking surface, so that the reset member is suitable for pushing the input end to abut against the second blocking surface.

[0016] In an alternative embodiment, the impact end is located at the end of the power ram away from the air path, so that when there is high-pressure gas in the air path and the cavity, it is suitable for driving the impact end to drive the input end.

[0017] In an alternative embodiment, the air path includes a first air duct and a second air duct that communicate with each other;

[0018] The first air duct is connected to the cavity;

[0019] The second air duct is suitable for communicating with an air outlet or an intake port to connect the air outlet or the intake port with the cavity.

[0020] In an alternative embodiment, the first air duct penetrates through one end of the power ram away from the impact terminal, so that high-pressure gas is suitable for pushing the power ram to move;

[0021] The number of the second air ducts is not less than one.

[0022] In an alternative embodiment, the power ram further includes a contact surface;

[0023] The cylinder block further includes a limiting surface suitable for abutting against the contact surface to limit the movement distance of the power ram in the cavity;

[0024] Both the contact surface and the limiting surface are flat surfaces.

[0025] In a second aspect, the embodiments of the present disclosure further provide a high-impact vibration test device resistant to high and low temperatures, including:

[0026] An impact terminal, which includes an output end that directly impacts the product;

[0027] A power ram, which includes an impact end that pushes the impact terminal to move and an air path that serves as a gas channel;

[0028] Reset part;

[0029] Cylinder block, which includes a cavity adapted to place an impact terminal and a power ram, and an air outlet and an air inlet are provided on the side wall of the cylinder block;

[0030] The air inlet ventilates the cavity through an air path to drive the power ram to move, so as to be adapted to provide a sufficiently large impact force in both high-temperature and low-temperature conditions. After the power ram drives the impact terminal to move a certain distance, it separates from the power ram, and the impact terminal continues to move a certain distance and is then pulled back to its original position by the reset part;

[0031] Partial sides of the impact terminal and the power ram are hermetically connected to the side wall of the cavity;

[0032] The cross-sections of the impact terminal, the power ram, and the cavity are all circular.

[0033] In an alternative embodiment, the cylinder block further includes a first stop surface and a second stop surface that limit two extreme positions of the impact terminal;

[0034] The impact terminal further includes an input end located between the first stop surface and the second stop surface;

[0035] One end of the reset part is connected to the input end, and the other end of the reset part contacts the first stop surface, so that the reset part is adapted to push the input end against the second stop surface.

[0036] Usage method of a high-impact vibration test device resistant to high and low temperatures, including the following steps:

[0037] Step S1, pass high-pressure gas into the cavity through the air inlet and the air path, so that the high-pressure gas between the end of the cavity and the power ram drives the power ram to move;

[0038] Step S2, the impact end contacts the input end to drive the impact terminal to move in the cavity, stop passing high-pressure gas into the cavity, and further, the air outlet is communicated with the air path to continuously discharge the high-pressure gas in the cavity, the speed of the power ram decreases, and then the impact end separates from the input end, and the power ram returns to its original position under the action of gravity;

[0039] Step S3, after the output end impacts the product, the impact terminal stops moving, and at this time the input end approaches the first stop surface;

[0040] Step S4, the reset part works to pull the impact terminal back to its original position until the input end contacts the second stop surface.

[0041] In an alternative embodiment, after the air outlet is communicated with the second air path in step S2, the contact surface of the power ram contacts the limit surface again, so that the high-pressure gas in the cavity can be discharged;

[0042] After the output end hits the product and stops in step S3, the input end is separated from the first blocking surface at this time.

[0043] The beneficial effects of the present invention are as follows: providing a high-impact vibration test device resistant to high and low temperatures and a usage method. By using an impact terminal, a power ram, a reset member, and a cylinder block in cooperation, a high-impact vibration test device resistant to high and low temperatures is made to replace an electromagnetic vibration device, realizing the effect of testing products in the range of -100 to 200 °C, improving the temperature adaptability of the vibration device, being able to provide a large impact force, and reducing the occupied space of the vibration device. Description of the Drawings

[0044] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0045] Figure 1 It is a device design target and part attribute simulation result diagram of the high-impact vibration test device resistant to high and low temperatures provided by the embodiments of the present disclosure.

[0046] Figure 2 It is a working principle diagram of the high-impact thrust generated by the device of the high-impact vibration test device resistant to high and low temperatures provided by the embodiments of the present disclosure.

[0047] Figure 3 It is a working principle diagram of the pneumatic forward movement direction with a high vibration amplitude of the high-impact vibration test device resistant to high and low temperatures provided by the embodiments of the present disclosure.

[0048] Figure 4 It is a working principle diagram of the pneumatic backward movement direction with a high vibration amplitude of the high-impact vibration test device resistant to high and low temperatures provided by the embodiments of the present disclosure.

[0049] Figure 5 It is a technical effect diagram of the high-impact vibration test device resistant to high and low temperatures provided by the embodiments of the present disclosure.

[0050] In the figure: 1. Impact terminal; 11. Output end; 12. Input end;

[0051] 2. Power ram; 21. Impact end; 22. Air path; 23. First air duct; 24. Second air duct; 25. Contact surface;

[0052] 3. Reset member;

[0053] 4. Cylinder block; 41. Cavity; 42. Air outlet; 43. Air inlet; 44. First blocking surface; 45. Second blocking surface;

[0054] 46. Limiting surface. Detailed implementation manners

[0055] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0056] In this document, when it is mentioned that the first component is located on the second component, this may mean that the first component can be directly formed on the second component, or a third component can be inserted between the first component and the second component. In addition, in the drawings, to effectively describe the technical content, the thickness of the components may be exaggerated or reduced.

[0057] In this document, the exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0058] The terms used herein are only for describing specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an", and "the" may also be intended to include the plural forms, unless clearly stated otherwise herein. The terms "comprising", "including", and "having" are inclusive and thus specify the presence of the specified features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or their combinations.

[0059] As used herein, phrases such as "in one embodiment", "according to one embodiment", "in some embodiments", etc. generally refer to the fact that the specific feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure. Thus, a specific feature, structure, or characteristic can be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, terms such as "example", "exemplary", etc. are used "as an example, instance, or illustration. Any embodiment, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other embodiments, aspects, or designs. Instead, the use of terms such as "example", "exemplary", etc. is intended to present concepts in a concrete manner.

[0060] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0061] The following will, with reference to the accompanying drawings, elaborate on some embodiments of the present invention. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0062] The main functions of the high-impact vibration test device resistant to high and low temperatures are to generate a high vibration amplitude and a high impact thrust, and to adapt to the working environments of high and low temperatures; the working principle of the high-impact vibration test device resistant to high and low temperatures for generating a high impact thrust is: the high-impact vibration test device resistant to high and low temperatures is a cylinder structure, including a cylindrical empty chamber with a piston pushed by high-pressure gas inside, which converts the air pressure into the kinetic energy of the high-speed movement of the piston.

[0063] The high-impact vibration test device resistant to high and low temperatures consists of four structures: an impact terminal 1, a power ram 2, a reset member 3, and a cylinder block 4; the high-pressure gas drives the power ram 2 to move, and the power ram 2 transmits the mechanical vibration energy to the impact terminal 1 through impact, and a thrust F is generated on the end face of the impact terminal 1; the thrust F, stroke S, and frequency f of the impact terminal 1 are the main design parameters of the device; for the impact terminal 1 of the device, under the condition that the stroke S remains unchanged at 15 mm and the frequency f is at least kept above 1000 Hz, as the air pressure of the input high-pressure gas increases, the thrust F increases proportionally, and the design range of the thrust F is 100 - 300 Kg, and the corresponding pressure range of the input high-pressure gas is 0.1 - 1 MPa.

[0064] The following parameters need to be further calculated and selected: the mass m1 of the impact terminal 1, the mass m2 of the power ram 2, and the force-bearing area A when the impact terminal 1 and the power ram 2 collide.

[0065] ‌The calculation can be carried out through the following steps and formulas:

[0066] Acceleration can be calculated using Newton's second law, namely F=Ma, thrust F, total mass M, acceleration a, and F=PA, thrust F, air pressure P, force area A.

[0067] F=Ma, is the thrust F of the impact terminal 1, the total mass M is the mass of the impact terminal 1 plus the mass of the power hammer 2, and the acceleration a is the acceleration of the impact terminal 1.

[0068] F=PA, the thrust F of the impact terminal 1, the air pressure P provided by the cylinder body 4, and the force area A of the impact terminal 1.

[0069] The frequency f is a cyclic function of the acceleration over time based on the stroke S and the total mass M during motion; the magnitude of the thrust F of the impact terminal 1 depends on the effective area of action; these require simulation technology, finite element analysis, and simulation of the ventilation movement effect; adjust and evaluate the part properties of the impact terminal 1 and the power hammer 2, that is, to obtain the mass m1 of the impact terminal 1, the mass m2 of the power hammer 2, and the force area A of the impact terminal 1; the finite element analysis simulation obtains: the part properties of the impact terminal 1 and the power hammer 2: the mass m1 of the impact terminal 1: 0.1Kg, the mass m2 of the power hammer 2: 0.55Kg, the force area A of the impact terminal 1: 452.16 mm², the aperture of the air inlet of the power hammer 2 ф3.1 mm, the aperture of the air outlet of the power hammer 2 ф4.8 mm (reference Figure 1 and Figure 2 ).

[0070] The working principle of the device to generate high vibration amplitude is: the mechanical reciprocating work of the impact terminal 1 adopts the following technical scheme:

[0071] The cylinder body 4 adopts a double-acting cylinder: it includes an air inlet 43 and an air outlet 42 for air supply and exhaust respectively; when the high-pressure gas enters the cylinder body 4 from the air inlet 43, it pushes the power hammer 2 to move forward; and when the high-pressure gas is discharged from the air outlet 42, the power hammer 2 is reset, and the double-acting cylinder body 4 is reset with the help of the reset member 3, so that continuous mechanical reciprocating motion can be achieved.

[0072] Inside the cylinder block 4, there is a cavity 41 for storing high-pressure gas. The cavity 41 is also used to control the moving direction of the power ram 2, that is, to guide the power ram 2. When high-pressure gas is introduced into the cavity 41, a strong thrust will be generated, thereby pushing the power ram 2 to move, and then hitting the impact terminal 1. The device uses high-pressure gas as the power source and drives the movement of the power ram 2 by controlling the input of the gas. The power ram 2 advances in the cylinder block 4 and hits the impact terminal 1. A return spring, that is, the reset member 3, is installed at the end of the impact terminal 1. When the impact terminal 1 is hit by the power ram 2, it can move forward. When the impact terminal 1 hits the product and then the reset member 3 drives the impact terminal 1 to reset, the impact terminal 1 also drives the power ram 2 to reset, realizing the mechanical reciprocating work of the impact terminal 1.

[0073] The cylinder block 4 is used to store and release high-pressure gas. It is designed with an air inlet 43, which is connected to a high-pressure gas source to provide the high-pressure gas required for the device to work. The cylinder block 4 is designed with a pneumatic output port, that is, an air outlet 42, to discharge the high-pressure gas in the cylinder block 4.

[0074] The power ram 2 is used to hit the impact terminal 1 to make it move. It is used to push the impact terminal 1 to move under the action of the high-pressure gas in the cavity 41 and is pressed and reset by the impact terminal 1 pulled by the reset member 3 when the high-pressure gas in the cavity 41 is discharged.

[0075] A reset member 3, that is, a return spring, is installed on the impact terminal 1 to enable the impact terminal 1 to reset.

[0076] The mechanical reciprocating work of the impact terminal 1 consists of three consecutive cyclic stages: the driving stage, the holding stage, and the reset stage.

[0077] Driving stage: When high-pressure gas enters the cylinder block 4 through the air inlet 43 of the cylinder block 4, at this time, the air inlet 43 of the cylinder block 4 is connected to the air inlet passage of the power ram 2, and the high-pressure gas is filled into the cavity 41 of the cylinder block 4. The high-pressure gas in the cavity 41 generates a thrust, pushing the power ram 2 to move forward along the axis of the cavity 41 and driving the power ram 2 to advance.

[0078] Holding stage: The power ram 2 continues to advance. When the second air passage 24 of the power ram 2 is connected to the air outlet 42 of the cylinder block 4, the high-pressure gas in the cylinder block 4 will be released outside the cylinder, and the impact power of the power ram 2 will also disappear. At this time, the power ram 2 hits the impact terminal 1.

[0079] Reset stage: In order to return the impact terminal 1 to its initial position, a spring, i.e., the reset member 3, is sleeved at the position where the impact terminal 1 is located. When the power ram 2 is not hitting, the elastic force of the spring will restore the impact terminal 1 to its starting position, i.e., the input end 12 contacts the second blocking surface 45; at the same time, the impact terminal 1 presses the power ram 2 to reset, realizing the mechanical reciprocating operation of the impact terminal 1 (refer to Figure 3 and Figure 4 ).

[0080] Working principle of the device when working at high temperature:

[0081] The device adopts pneumatic drive. In the cylinder system, the compressibility of air and the friction between the cylinder and the piston, etc., will cause the temperature of the system to gradually rise, resulting in a decrease in the stability of the pneumatic system, thus affecting the performance of the device; for the need of the device to cool itself and to work in the ambient temperature range of -100 to 250 °C, the device uses normal-temperature air as the air source and designs a temperature adjustment mechanism on the power ram 2: using the working principle of the evaporator, through the heat exchange between the flowing high-pressure gas and the power ram 2. When the power ram 2 is at a high temperature, the flowing high-pressure gas absorbs heat, thus achieving a refrigeration effect; when the power ram 2 is at a low temperature, the flowing high-pressure gas releases heat, thus achieving a heating effect; in order to improve the heat exchange efficiency of the power ram 2, an incremental path for heat exchange is designed. A hole with a depth of 60 mm and a diameter of Φ10 mm is provided on the cylindrical end face of the power ram 2, and two connecting holes are provided in this hole, and the connecting holes are alternately communicated with the air inlet 43 and the air outlet 42 of the cylinder block 4; this is a mechanism that allows the device to have its own temperature adjustment during operation.

[0082] When the normal-temperature high-pressure gas enters the cylinder from the air inlet 43 of the cylinder block 4, it pushes the power ram 2 to move forward; the flowing high-pressure gas exchanges heat with the power ram 2. When the power ram 2 is at a high temperature, the flowing high-pressure gas absorbs heat, thus achieving a refrigeration effect; when the power ram 2 is at a low temperature, the flowing high-pressure gas releases heat, thus achieving a heating effect; when the flowing high-pressure gas is discharged from the air outlet 42 of the cylinder block 4, the power ram 2 moves backward and also discharges the high-pressure gas from the device; this temperature adjustment mechanism is synchronized with the mechanical reciprocating motion of the power ram 2 and continuous, so it can meet the need for the device to cool itself during operation and the temperature adjustment need for the device to work in the ambient temperature range of -100 to 250 °C (refer to Figure 5 ).

[0083] Device installation:

[0084] Fix this device to the vibration test bench through a jig or bracket, and adjust the relative position of the input end 11 of the impact terminal 1 in contact with the test platform, test product, or test object. The distance between the input end 11 and the test product needs to be maintained within the stroke of the device. The stroke of the impact terminal 1 is 15 mm, and adjust the orientation to ensure that the vibration direction is consistent with the desired force direction of the test work.

[0085] Place this device together with the test platform, test product, or test object into the test chamber. Through the temperature control system of the chamber, gradually adjust the temperature. Conduct a vibration test with a 1-hour hold at each 10°C from -100°C to 250°C to verify the performance of the device at the operating temperature from -100°C to 250°C.

[0086] Initial setting: Set the input pressure of the high-pressure gas to 0.6 MPa, the impact stroke to 15 mm, ensure that the generated thrust is 200 Kg, and keep the operating frequency of the impact terminal 1 at 1200 Hz (high-frequency vibration).

[0087] Test process: High-pressure gas enters the cavity 41 to drive the power ram 2 to move. The power ram 2 converts the pressure energy of the high-pressure gas into mechanical energy. The power ram 2 transfers the energy to the impact terminal 1 through impact, and a thrust F is generated on the end face of the impact terminal 1.

[0088] The operating movement frequency of the impact terminal 1 belongs to a high frequency, at least above 1000 Hz, the stroke S is maintained at 15 mm. As the pressure of the input high-pressure gas increases, the thrust F increases proportionally. The thrust F range is set to 100 - 300 Kg, and the corresponding input high-pressure gas pressure range is 0.1 - 1 MPa; the mass m1 of the impact terminal 1: 0.1 Kg, the mass m2 of the power ram 2: 0.55 Kg, the force-bearing area A of the impact terminal 1: 452.16 mm², the inlet hole diameter ф3.1 mm of the power ram 2, and the outlet hole diameter ф4.8 mm of the power ram 2.

[0089] The end face of the impact terminal 1 impacts the test object in the form of high amplitude and high thrust.

[0090] High thrust output: By adjusting the input pressure, the maximum thrust can reach 300 KG; Strong temperature adaptability: The device can operate stably in an environment from -100°C to 250°C, providing guarantee for test requirements in complex environments; The device has a small volume and can adapt to test objects of different sizes (reference Figures 3 to 5 )

[0091] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0092] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0093] Although this patent document contains many details, it should not be construed as limiting any invention or the scope of the claims, but rather as a description of the features of specific embodiments of a particular invention. Certain features described in the context of separate embodiments of this patent document may also be implemented in combination in a single embodiment. Conversely, the various functions described in the context of a single embodiment may also be implemented separately in multiple embodiments, or in any suitable sub-combination. In addition, although the above features may be described as acting in certain combinations, and even initially claimed as such, in some cases, one or more features of a claim combination may be removed from the combination, and the claim combination may be directed to a sub-combination or a variant of the sub-combination.

[0094] Similarly, although the operations are described in a specific order in the drawings, this should not be construed as meaning that such operations must be performed in the specific order or sequence shown to obtain the desired result, or that all the illustrated operations must be performed. In addition, the separation of various system components in the embodiments of this patent document should not be construed as required in all embodiments.

[0095] Only some implementations and examples are described, and other implementations, enhancements, and variations can be made based on what is described and illustrated in this patent document.

[0096] Although several embodiments are provided in the present disclosure, it should be understood that the disclosed systems and methods may be embodied in many other specific forms without departing from the spirit or scope of the present disclosure. The current examples are considered illustrative rather than restrictive and are not limited to the details given. For example, various elements or components may be combined or integrated in another system, or certain features may be omitted or not implemented.

Claims

1. A high-impact vibration test device resistant to high and low temperatures, characterized in that, Comprising: An impact terminal (1), which includes an output end (11) that directly impacts the product; A power ram (2), which includes an impact end (21) that pushes the impact terminal (1) to move and an air passage (22) that serves as a gas channel; A reset member (3); A cylinder block (4), which includes a cavity (41) adapted to place the impact terminal (1) and the power ram (2), and an air outlet (42) and an air inlet (43) are provided on the side wall of the cylinder block (4); The air inlet (43) ventilates into the cavity (41) through the air passage (22) to drive the power ram (2) to move, so as to be suitable for providing a sufficiently large impact force in both high-temperature and low-temperature situations. After the power ram (2) drives the impact terminal (1) to move a certain distance, it separates from the power ram (2), and the impact terminal (1) continues to move a certain distance and is then pulled back to its original position by the reset member (3); The cylinder block (4) further includes a first blocking surface (44) and a second blocking surface (45) that limit two extreme positions of the impact terminal (1); The impact terminal (1) further includes an input end (12) located between the first blocking surface (44) and the second blocking surface (45); One end of the reset member (3) is connected to the input end (12), and the other end of the reset member (3) contacts the first blocking surface (44), so that the reset member (3) is suitable for pushing the input end (12) to abut against the second blocking surface (45); The impact end (21) is located at the end of the power ram (2) away from the air passage (22), so that when there is high-pressure gas in the air passage (22) and the cavity (41), it is suitable for driving the impact end (21) to drive the input end (12); The air passage (22) includes a first air duct (23) and a second air duct (24) that are connected to each other; The first air duct (23) is connected to the cavity (41); The second air duct (24) is suitable for communicating with the air outlet (42) or the air inlet (43) to communicate the air outlet (42) or the air inlet (43) with the cavity (41); The device uses ambient air as the air source and designs a temperature adjustment mechanism on the power ram (2): Using the working principle of an evaporator, through heat exchange between the flowing high-pressure gas and the power ram (2), when the power ram (2) is at a high temperature, the flowing high-pressure gas absorbs heat, thereby achieving a refrigeration effect; when the power ram (2) is at a low temperature, the flowing high-pressure gas releases heat, thereby achieving a heating effect.

2. The high-impact vibration test device resistant to high and low temperatures according to claim 1, wherein: The first air duct (23) penetrates through one end of the power ram (2) away from the impact terminal (1), so that the high-pressure gas is suitable for pushing the power ram (2) to move; The number of the second air ducts (24) is not less than one.

3. The high-impact vibration test device resistant to high and low temperatures according to claim 1, wherein: The power ram (2) further includes a contact surface (25); The cylinder block (4) further includes a limiting surface (46) adapted to abut against the contact surface (25) to limit the movement distance of the power ram (2) in the cavity (41). The contact surface (25) and the limiting surface (46) are both flat surfaces.

4. A high-impact vibration test device resistant to high and low temperatures, characterized in that, It includes: An impact terminal (1), which includes an output end (11) that directly impacts the product; A power ram (2), which includes an impact end (21) that pushes the impact terminal (1) to move and a gas path (22) that serves as a gas channel; A reset member (3); A cylinder block (4), which includes a cavity (41) suitable for placing the impact terminal (1) and the power ram (2), and an air outlet (42) and an air inlet (43) are provided on the side wall of the cylinder block (4); The air inlet (43) ventilates the cavity (41) through the gas path (22) to drive the power ram (2) to move, so as to be suitable for providing a sufficient large impact force in both high-temperature and low-temperature situations. After the power ram (2) drives the impact terminal (1) to move a certain distance, it separates from the power ram (2), and the impact terminal (1) continues to move a certain distance and is then pulled back to its original position by the reset member (3); Partial sides of the impact terminal (1) and the power ram (2) are hermetically connected to the side wall of the cavity (41); The cross-sections of the impact terminal (1), the power ram (2), and the cavity (41) are all circular; The device uses normal-temperature air as the air source, and a temperature adjustment mechanism is designed on the power ram (2): using the working principle of an evaporator, heat exchange is carried out between the flowing high-pressure gas and the power ram (2). When the power ram (2) is at a high temperature, the flowing high-pressure gas absorbs heat, thereby achieving a refrigeration effect; when the power ram (2) is at a low temperature, the flowing high-pressure gas releases heat, thereby achieving a heating effect.

5. The high-impact vibration test device resistant to high and low temperatures according to claim 4, characterized in that: The cylinder block (4) further includes a first blocking surface (44) and a second blocking surface (45) that limit two extreme positions of the impact terminal (1); The impact terminal (1) further includes an input end (12) located between the first blocking surface (44) and the second blocking surface (45); One end of the reset member (3) is connected to the input end (12), and the other end of the reset member (3) contacts the first blocking surface (44), so that the reset member (3) is suitable for pushing the input end (12) to abut against the second blocking surface (45).

6. A method for using a high-impact vibration test device resistant to high and low temperatures, characterized in that, It includes the following steps: Step S1, high-pressure gas is introduced into the cavity (41) through the air inlet (43) and the gas path (22), so that the high-pressure gas between the end of the cavity (41) and the power ram (2) drives the power ram (2) to move; Step S2, the impact end (21) contacts the input end (12) to drive the impact terminal (1) to move in the cavity (41), stop introducing high-pressure gas into the cavity (41), and further, the air outlet (42) is communicated with the gas path (22) to continuously discharge the high-pressure gas in the cavity (41), the speed of the power ram (2) decreases, and then the impact end (21) separates from the input end (12), and the power ram (2) resets under the action of gravity; Step S3, after the output end (11) impacts the product, the impact terminal (1) stops moving, and at this time the input end (12) approaches the first blocking surface (44); Step S4, the reset member (3) operates to pull the impact terminal (1) back to its original position until the input end (12) contacts the second blocking surface (45).

7. The method for using a high-impact vibration test device resistant to high and low temperatures according to claim 6, characterized in that: After the air outlet (42) communicates with the second air passage (24) in the step S2, the contact surface (25) of the power ram (2) contacts the limiting surface (46) so that the high-pressure gas in the cavity (41) can be discharged; After the output end (11) impacts the product and stops in the step S3, at this time, the input end (12) is separated from the first blocking surface (44).

Images