Novel impact amplifier
By using adjustable force positioning blocks and guide rod structures in impact amplifiers, the problems of traditional impact amplifiers in high impact acceleration amplification and elastic regulation are solved, and more stable high acceleration amplification and simplified operation are achieved, satisfying large devices high impact test demand.
Patent Information
- Application Number
- CN202421070992.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-16
AI Technical Summary
When existing shock amplifiers achieve high impact acceleration, there are problems of instant weight loss caused by free fall on the main table and the problem of difficult to regulate elastic height. They cannot effectively amplify the acceleration and cannot meet the high impact test needs of large devices.
Use adjustable force positioning blocks instead of traditional rubber bands and elastic ropes to release the tabletop through inertia forces to ensure the realization of two relative collisions. Through the cooperation of the guide rod and the positioning block, the amplifier tabletop can slide up and down along the guide rod, avoiding the traditional Difficulty in weightlessness and elastic regulation of structures.
It achieves more stable high impact acceleration amplification, simplifies structure and operation, is suitable for devices with a weight of no less than 500 grams, and reaches an acceleration amplitude of 1E+06m/s2 or above, meeting the needs of large-scale impact tests.
Smart Images
Figure CN222188761U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of impact amplifiers, in particular to a novel impact amplifier. Background Art
[0002] Shock environment is an unavoidable environment for industrial parts during their life cycle. The acceleration amplitude is usually used to characterize the severity of the shock environment. At present, the shock acceleration that conventional shock test equipment can achieve is 3E+04m / s 2 , higher shock accelerations are achieved using air cannons, Hopkinson bars, or shock amplifiers.
[0003] The air cannon uses the fast-release characteristics of compressed air to instantly accelerate the projectile in the barrel, and after a certain movement stroke, it impacts to produce impact acceleration, with an amplitude of up to 2E+05m / s 2 This equipment is suitable for devices with dimensions not exceeding Φ40mm and weight not exceeding 200g, such as material samples and sensor testing.
[0004] The Hopkinson bar uses the diffraction principle of waves to transmit and superimpose the shock waves generated by the impact excitation in the long bar, and obtains a high impact acceleration amplitude at the end of the bar, which can reach up to 3E+06m / s. 2 This method is suitable for devices with dimensions not exceeding Φ20mm and weight not exceeding 80g, such as material samples, sensors, and strain gauge tests.
[0005] The impact amplifier currently used in the industry is combined with conventional impact test equipment. Based on the principle of energy conservation and impulse as velocity vector superposition, it amplifies the excitation impulse from the impact test equipment to about twice the original value. The highest acceleration amplitude can reach 5E+05m / s 2 , the weight of the test piece can reach 1000 grams.
[0006] The working principle of the existing impact amplifier is:
[0007] The bottom plate is connected to the main table of the conventional impact test equipment, and the rubber band connects the top plate to make the amplifier table detach from the bottom plate and hang in the air. During the impact, the main table falls freely or accelerates, and moves upward after the collision to generate a secondary impact with the falling amplifier table to amplify the speed change, thereby amplifying the acceleration.
[0008] However, this traditional structure has two problems:
[0009] First, at the moment when the main table is free falling or accelerating, due to weightlessness, the internal force of the rubber band is instantly released, and the amplifier table will rush to the top plate and collide with it. Therefore, a buffer pad is usually added to the top of the guide, but this collision cannot be avoided.
[0010] Secondly, it is difficult to get the right elasticity of the rubber band and the height H of the amplifier table. If the elasticity is insufficient, H is very small, and the amplifier table cannot even be suspended; if the elasticity is too large, H is very large, and when the main table rebounds, the amplifier table will instantly lose a lot of inertial speed under the tension of the rubber band, and it may even be unable to achieve a secondary impact.
[0011] In addition to the above structural problems, with the development of science and technology, the demand for large-scale impact tests is also increasing rapidly. The actual engineering needs are weights of no less than 500 grams and acceleration amplitudes of 1E+06m / s2 or more. At present, the impact amplifiers in the industry can solve some engineering problems, but there is still a big gap from the actual needs. For this reason, we propose a new type of impact amplifier. Utility Model Content
[0012] Technical problem solved: In view of the shortcomings of the prior art, the utility model provides a new type of impact amplifier, which no longer uses traditional rubber bands, elastic ropes and tension springs, but adopts a positioning block with adjustable force, relies on inertia force to release the table top, and ensures that two relative collisions can be achieved, which can effectively solve the problems in the background technology.
[0013] Technical solution: To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a new type of impact amplifier, including a base, a column is positioned on the base, a main table is arranged on the column, a bottom plate is positioned in the middle of the upper end of the main table, a guide rod is positioned on the bottom plate, an amplifier table is movably arranged on the guide rod, a three-punch assembly is positioned in the middle of the upper end of the amplifier table, and the three-punch assembly includes a three-punch table, a second positioning block and an anvil.
[0014] Preferably, a first positioning block is installed at the upper end of the amplifier table top, located on the side of the guide rod; a guide limit groove is provided on the guide rod near the top; a limiter is integrally formed at the position where the inner side of the first positioning block contacts the guide rod; and a through hole is provided inside the amplifier table top, passing through the guide rod.
[0015] Preferably, the anvil is located at the bottom of the three-punch table, and the second positioning blocks are located at both ends of the three-punch table.
[0016] Preferably, the guide rod is spirally positioned with the bottom plate, a through hole is arranged on the amplifier table to cooperate with the guide rod, and the amplifier table can slide up and down along the guide rod.
[0017] Preferably, the amplifier tabletop is separated from the bottom plate and maintained at a certain distance by a first positioning block.
[0018] Preferably, the amplifier table is positioned and installed between the three-punch assembly, and the three-punch table is kept at a certain distance from the anvil by a second positioning block.
[0019] Beneficial effects: Compared with the prior art, the utility model provides a new type of impact amplifier, which has the following beneficial effects: this new type of impact amplifier no longer uses traditional rubber bands, elastic ropes and tension springs, etc., and adopts a positioning block with adjustable strength, relies on inertia force to release the table top, and ensures that two relative collisions can be achieved. The guide is fixed on the bottom plate, and a through hole is set on the amplifier table top to cooperate with the guide, and can slide up and down along the guide. The amplifier table top can be separated from the bottom plate and maintained at a certain distance by the positioning block. A three-punch assembly is installed on the amplifier table top, and the three-punch table top is also maintained at a certain distance from the anvil through the positioning block. The entire impact amplifier has a simple structure and is easy to operate. The effect of use is better than that of the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a novel impact amplifier.
[0021] Figure 2 The utility model is a schematic diagram of the structure of the activity of the amplifier table in a novel impact amplifier.
[0022] Figure 3 The utility model is a structural schematic diagram of a three-impact component in a novel impact amplifier.
[0023] Figure 4 Schematic diagram of the traditional impact amplifier structure.
[0024] In the figure: 1. base; 2. column; 3. bottom plate; 4. amplifier table; 5. guide rod; 6. main table; 7. first positioning block; 8. three-punch assembly; 9. three-punch table; 10. second positioning block; 11. anvil; 12. guide limit groove; 13. limiter; 14. through hole. DETAILED DESCRIPTION
[0025] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the utility model, rather than all of the embodiments, and are only used to illustrate the utility model, and should not be considered to limit the scope of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. If the specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.
[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] like Figure 1-4 As shown, a new type of impact amplifier includes a base 1, a column 2 is positioned on the base 1, a main table 6 is arranged on the column 2, a bottom plate 3 is positioned in the middle of the upper end of the main table 6, a guide rod 5 is positioned on the bottom plate 3, an amplifier table 4 is movably arranged on the guide rod 5, a three-punch assembly 8 is positioned in the middle of the upper end of the amplifier table 4, the three-punch assembly 8 includes a three-punch table 9, a second positioning block 10 and an anvil 11, and traditional rubber bands, elastic ropes and tension springs are no longer used. A positioning block with adjustable strength is used, and the table is released by inertia force to ensure that two relative collisions can be achieved.
[0029] Furthermore, a first positioning block 7 is installed at the upper end of the amplifier table 4, which is located on the side of the guide rod 5. A guide limit groove 12 is provided on the guide rod 5 near the top. A limiter 13 is integrally formed at the position where the inner side of the first positioning block 7 contacts the guide rod 5. A through hole 14 is provided inside the amplifier table 4, which passes through the guide rod 5.
[0030] Furthermore, the anvil block 11 is located at the bottom of the three-punch table 9 , and the second positioning blocks 10 are located at both ends of the three-punch table 9 .
[0031] Furthermore, the guide rod 5 is spirally positioned with the bottom plate 3 , and a through hole 14 is provided on the amplifier table 4 to cooperate with the guide rod 5 , so that the amplifier table 4 can slide up and down along the guide rod 5 .
[0032] Furthermore, the amplifier table 4 is separated from the bottom plate 3 and maintained at a certain distance by the first positioning block 7 .
[0033] Furthermore, the amplifier table 4 is positioned and installed with the three-punch assembly 8 , and the three-punch table 9 is kept at a certain distance from the anvil 11 through the second positioning block 10 .
[0034] Working principle: The utility model includes a base 1, a column 2, a bottom plate 3, an amplifier table 4, a guide rod 5, a main table 6, a first positioning block 7, a three-punch assembly 8, a three-punch table 9, a second positioning block 10, an anvil 11, a guide limit groove 12, a limiter 13, and a through hole 14. The impact amplifier is mainly composed of a bottom plate, a guide, an amplifier table, a positioning block, and a three-punch assembly, wherein the three-punch assembly is composed of a three-punch table, a positioning block, and an anvil.
[0035] The guide is fixed on the base plate, and a through hole is arranged on the amplifier table top to cooperate with the guide, so that the amplifier table top can slide up and down along the guide. The amplifier table top can be separated from the base plate by a positioning block to maintain a certain distance, and a three-punch assembly is installed on the amplifier table top, in which the three-punch table top is also maintained at a certain distance from the anvil by a positioning block. Traditional rubber bands, elastic ropes and tension springs are no longer used. A positioning block with adjustable force is used, and the table top is released by inertia force to ensure that two relative collisions can be achieved.
[0036] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A novel impact amplifier, comprising a base (1), characterized in that: A column (2) is positioned on the base (1), a main table (6) is arranged on the column (2), a bottom plate (3) is positioned in the middle of the upper end of the main table (6), a guide rod (5) is positioned on the bottom plate (3), an amplifier table (4) is movably arranged on the guide rod (5), a three-punch assembly (8) is positioned in the middle of the upper end of the amplifier table (4), and the three-punch assembly (8) comprises a three-punch table (9), a second positioning block (10) and an anvil (11).
2. A novel impact amplifier according to claim 1, characterized in that: A first positioning block (7) is installed at the upper end of the amplifier table (4) at a position on the side of the guide rod (5); a guide limit groove (12) is provided on the guide rod (5) near the top; a limiter (13) is integrally formed at the position where the inner side of the first positioning block (7) contacts the guide rod (5); and a through hole (14) is provided inside the amplifier table (4) at a position passing through the guide rod (5).
3. A novel impact amplifier according to claim 1, characterized in that: The anvil block (11) is located at the bottom of the three-punch table (9), and the second positioning blocks (10) are located at both ends of the three-punch table (9).
4. A novel impact amplifier according to claim 1, characterized in that: The guide rod (5) and the bottom plate (3) are spirally positioned, and a through hole (14) is provided on the amplifier table (4) to cooperate with the guide rod (5), so that the amplifier table (4) can slide up and down along the guide rod (5).
5. A novel impact amplifier according to claim 2, characterized in that: The amplifier tabletop (4) is separated from the bottom plate (3) by a first positioning block (7) and maintained at a certain distance.
6. A novel impact amplifier according to claim 1, characterized in that: The amplifier table (4) is positioned and installed between the three-punch assembly (8), and the three-punch table (9) is kept at a certain distance from the anvil (11) via a second positioning block (10).