Double-flywheel short-interval multi-high-overload mechanical test device

Abstract

This invention discloses a dual-flywheel short-interval multiple high-overload mechanical testing device. The impact mechanism's power source provides rotational power to the impact mechanism, causing it to drive the impact specimen body to rotate counterclockwise. The impacted mechanism's power source provides rotational power to the impacted mechanism, causing the impacted plate on it to rotate clockwise. After rotational stabilization, the driving power source drives the impacted moving platform to move downwards along the support column a distance z, then into position. The impact head then impacts and penetrates the impacted plate, achieving multiple short-interval high-overload impacts. Compared to a single-flywheel impact structure, this invention, by controlling the speed of the impact flywheel, the speed of the impacted flywheel, and the number of impacted plates, can achieve multiple high-overload impacts with shorter intervals. Furthermore, the thickness and material of the impacted plates can be designed to adjust the pulse width and overload of multiple impacts, providing an effective means for short-interval multiple high-overload mechanical testing in a laboratory environment.

Description

Technical Field

[0001] This invention belongs to the field of impact testing equipment, specifically relating to a dual-flywheel short-interval multiple high overload mechanical testing device. Background Technology

[0002] Many core components in production and daily life operate under conditions of repeated high overload mechanical action at short intervals. Typical examples include piston components of impact drills, valve structures of engines, and core components of mining gearboxes and coal mining machines. Therefore, to verify the reliability of such components, mechanical experiments must be conducted during their research and development and production. Especially in some special fields, such as the high-speed penetration of penetrating munitions into multi-layered hard targets, their fuse mechanisms and control components will be subjected to the mechanical environment generated by the penetration process. This mechanical environment exhibits characteristics such as repeated short intervals, high overload, and long pulse width. To evaluate their performance and response under the conditions of repeated high overload in short intervals, it is necessary to conduct repeated high overload mechanical experiments on them in advance.

[0003] Currently, the main experimental methods for testing high overload conditions with short intervals include the drop hammer impact test device and the flywheel impact test device. The drop hammer impact test device can generate high overload signals with long pulse widths, while the flywheel impact test device can generate multiple high overload signals. However, these experimental devices have certain limitations for testing the performance of components that need to operate under high overload conditions with short intervals.

[0004] To address the need for multiple high overloads with short intervals, a dual-flywheel mechanical testing device for multiple high overloads with short intervals was designed. This testing device effectively solves the problem of generating multiple high overload signals with short intervals. Furthermore, by utilizing the structure and materials of the impact head and the impact plate, it achieves overload signals with different pulse width and peak value combinations, thus realizing a high overload impact signal with variable impact interval, adjustable number of impacts, adjustable pulse width, and controllable peak value. Summary of the Invention

[0005] This invention proposes a dual-flywheel short-interval, multiple-overload mechanical testing device for testing the performance and function of certain electromechanical components under short-interval, multiple-overload operating conditions. It aims to replicate the short-interval, multiple-overload, long-pulse-width impacts experienced during operation in a laboratory environment as closely as possible, reducing experimental costs and improving research efficiency. This invention achieves adjustable high-overload impact intervals, controllable number of impacts, variable pulse widths, and controllable peak values ​​by adjusting the flywheel speed, the structure and materials of the impact head, and the structure and materials of the impact plate.

[0006] The technical solution of this invention is as follows: a dual-flywheel short-interval multiple high overload mechanical testing device, comprising an impact mechanism, an impact mechanism power source, an impacted mechanism, an impacted mechanism power source, a support base, an impacted moving platform, a drive power source, a top beam, and four pillars. The support base is fixed to the ground. The impact mechanism is located on the top surface of the support base, with its bottom extending downwards through the center of the support base to connect to the impact mechanism power source. The impact mechanism power source provides rotational power to the impact mechanism, causing it to rotate counterclockwise. Two mounting grooves are provided on the outer edge of the top surface of the impact flywheel, with the two grooves sharing a common diameter, for mounting the impact specimen body and counterweights to achieve dynamic balance of the impact flywheel. The impacted mechanism is located on the bottom surface of the impacted moving platform, with its top extending upwards through the center of the impacted moving platform to connect to the impact mechanism power source. The impact mechanism power source provides rotational power to the impacted mechanism, causing it to rotate clockwise. Twenty mounting grooves are evenly distributed on the edge of the impact flywheel for loading and unloading impact plate clamps. The support column is cylindrical, fixed to the ground at the bottom, and has two rings of protrusions on its body; the upper one is the first protrusion, and the lower one is the second protrusion. The impact-sensitive moving platform moves up and down between the first and second protrusions. The top beam constrains the displacement of the support column, preventing it from bending and swaying during operation. Initially, the upper surface of the impact-sensitive moving platform is in contact with the lower surface of the first protrusion of the support column. After being driven to the workstation by the power source, its lower surface contacts the upper surface of the second protrusion of the support column. Assume the distance between the first and second protrusions of the support column is... The thickness of the impacted mobile platform is The mobile platform that is impacted can move within a certain range. In the initial position, the distance between the impact apex of the impact head and the bottom surface of the impacted plate is... The impact point in the impact plate is at a distance from the bottom surface of the impact plate. At this point, the distance between the impact apex of the impact head and the impact point in the impacted plate is set to... During the test, the drive power source propelled the impacted mobile platform downwards. The distance to the impact point is the distance to the impact head, which penetrates the impacted plate at the impact point. During the impact penetration process, the impact head generates multiple high overloads at short intervals, achieving a penetration test with multiple high overloads at short intervals.

[0007] Compared with the prior art, the significant advantages of this invention are:

[0008] (1) The double flywheel structure is adopted. The impact flywheel and the impact flywheel are coaxial and rotate in opposite directions at high speed. Compared with the single flywheel mechanism, it can achieve multiple high overload impacts with shorter intervals.

[0009] (2) The present invention mainly achieves multiple overloads at short intervals by penetrating the impact plate through the impact specimen body mechanism. The impact pulse width and peak value are controlled by adjusting the impact head structure and material in the impact specimen body mechanism and the structure and material of the impact plate. Attached Figure Description

[0010] Figure 1 This is an overall oblique view of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0011] Figure 2 This is a perspective view of the support base of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0012] Figure 3 This is a perspective view of the impact-affected moving platform of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0013] Figure 4 This is a schematic diagram showing the positional relationship between the impact-affected moving platform, support column, impact plate, and impact head of the dual-flywheel short-interval multiple high overload mechanical testing device of the present invention.

[0014] Figure 5 This is a perspective view of the support column of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0015] Figure 6 This is a perspective view of the impact mechanism of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0016] Figure 7 This is a cross-sectional view of the impact mechanism of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0017] Figure 8 This is a perspective view of the impact flywheel of a dual flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0018] Figure 9 This is a perspective view of the impact specimen mechanism of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0019] Figure 10 This is a cross-sectional view of the impact specimen structure of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0020] Figure 11 This is a perspective view of the impact mechanism of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0021] Figure 12 This is a cross-sectional view of the impact mechanism of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0022] Figure 13 This is a perspective view of the impacted flywheel of a dual-flywheel short-interval multiple high overload mechanical testing device according to the present invention.

[0023] In the diagram: 1 - Impact mechanism; 101 - Impact specimen body mechanism; 1011 - Impact body clamp; 1012 - Impact head; 1013 - Impact housing; 1014 - Impact spring; 1015 - Impact specimen; 102 - Impact flywheel; 103 - Upper clamping plate of impact flywheel; 104 - Lower clamping plate of impact flywheel; 105 - Upper cover of impact bearing support cylinder; 106 - Impact bearing support cylinder; 107 - Lower cover of impact bearing support cylinder; 108 - Impact shaft; 109 - Impact cylindrical roller bearing; 110 - First self-aligning roller bearing of impact; 111 - Second self-aligning roller bearing of impact; 112 - Impact driven wheel; 113 - Impact V-belt; 114 - Impact retaining ring; 115 - Impact driving wheel; 116 - Impact motor. 2-Impacted mechanism, 201-Impacted flywheel, 202-Impacted flywheel upper clamping plate, 203-Impacted flywheel lower clamping plate, 204-Impacted plate clamp, 205-Impacted plate, 206-Impacted cylindrical roller bearing, 207-Impacted first self-aligning roller bearing, 208-Impacted second self-aligning roller bearing, 209-Impacted bearing support cylinder lower cover, 210-Impacted bearing support cylinder, 211-Impacted bearing support cylinder upper cover, 212-Impacted shaft, 213-Impacted retaining ring, 214-Impacted driven wheel, 215-Impacted V-belt, 216-Impacted driving wheel, 217-Impacted motor, 3-Support base, 4-Column, 5-Impacted moving platform, 6-Top beam. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0026] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible to those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0029] The following section will further introduce the specific implementation method, as well as the technical difficulties and inventive points of this invention, using this design example as an example.

[0030] Combination Figures 1-13 The present invention discloses a dual-flywheel short-interval multiple high overload mechanical testing device, comprising an impact mechanism 1, an impact mechanism power source, an impact-receiving mechanism 2, an impact-receiving mechanism power source, a support base 3, an impact-receiving moving platform 5, a drive power source, a top beam 6, and four support columns 4. The components are arranged coaxially from top to bottom: a top beam 6, an impact-bearing moving platform 5, an impact-bearing mechanism 2, an impact mechanism 1, and a support base 3. The support base 3 is fixed to the ground. The impact mechanism 1 is located on the top surface of the support base 3, with its bottom extending downward through the center of the support base 3 to connect to the power source of the impact mechanism. The pillars 4 are evenly distributed and fixed to the ground, restricting and supporting the movement of the impact-bearing moving platform 5. The impact-bearing mechanism 2 is located on the bottom surface of the impact-bearing moving platform 5, with its top extending upward through the center of the impact-bearing moving platform 5 to connect to the power source of the impact mechanism. A cross-shaped top beam 6 is installed at the top of the pillars 4. The power source of the impact mechanism provides rotational power to the impact mechanism 1, causing the impact mechanism 1 to rotate counterclockwise and drive the impact specimen body mechanism 101 on the impact mechanism 1 to rotate. The power source of the impact mechanism provides rotational power to the impact mechanism 2, causing the impact mechanism 2 to rotate clockwise. The driving power source is used to drive the impact-bearing moving platform 5 to move up and down along the pillars 4. The top beam 6 constrains the displacement of the pillars 4 to prevent the pillars 4 from bending and swaying during operation.

[0031] While the impact specimen body mechanism 101 rotates counterclockwise under the drive of the impact mechanism 1, the impact plate rotates clockwise under the drive of the impact mechanism. After the impact mechanism and the impact plate have stabilized, the driving power source drives the impact moving platform to move downward, so that the impact specimen body mechanism impacts and penetrates the impact point of the impact plate. Initially, the upper surface of the impact moving platform is in contact with the lower surface of the first boss of the support column. After the impact moving platform is driven to the work position by the driving power source, its lower surface is in contact with the upper surface of the second boss of the support column. Assume the distance between the first and second bosses of the support column is... The thickness of the impacted mobile platform is The mobile platform that is impacted can move within a certain range. In the initial position, the distance between the impact apex of the impact head and the bottom surface of the impacted plate is... The impact point in the impact plate is at a distance from the bottom surface of the impact plate. , During the test, the drive power source propelled the impacted mobile platform downwards. The distance to the impact point is the distance to the impact head, which penetrates the impacted plate at the impact point. During the impact penetration process, the impact head generates multiple high overloads at short intervals, achieving a penetration test with multiple high overloads at short intervals.

[0032] The support base 3 is a U-shaped part with an opening facing downwards. A threaded hole is machined in the center of its top plate for installing the impact bearing support cylinder 106. The impact flywheel 102 is located above the top plate of the support base 3, and the impact driven wheel 112 is located below the top plate of the support base 3.

[0033] The support column 4 is a cylinder with its bottom fixed to the ground. It has two rings of protrusions on its body, the upper one being the first protrusion and the lower one being the second protrusion. The impact-sensitive moving platform 5 moves up and down between the first and second protrusions.

[0034] Combination Figures 5-7The impact mechanism 1 includes an impact flywheel 102, an upper impact flywheel clamping plate 103, a lower impact flywheel clamping plate 104, an impact shaft 108, an impact bearing support mechanism, an impact driven wheel 112, and an impact fixing ring 114. The impact flywheel 102 is placed horizontally, and the impact shaft 108 is a vertical shaft. The impact specimen body mechanism 101 is fixed on the impact flywheel 102. The impact shaft 108 is equipped with the upper impact flywheel clamping plate 103, the impact flywheel 102, the lower impact flywheel clamping plate 104, the impact bearing support mechanism, the impact driven wheel 112, and the impact fixing ring 114 from top to bottom. The impact bearing support mechanism includes an upper impact bearing support cylinder cover 105, an impact bearing support cylinder 106, a lower impact bearing support cylinder cover 107, an impact cylindrical roller bearing 109, and an impact first self-aligning roller bearing 110. 10. Impact second self-aligning roller bearing 111. The top and bottom surfaces of the impact bearing support cylinder 106 are respectively provided with an upper cover 105 and a lower cover 107, which together form the cylinder body. The impact cylindrical roller bearing 109, the first self-aligning roller bearing 110, and the second self-aligning roller bearing 111, which are sleeved on the impact shaft 108 from top to bottom, are all located in the cylinder body. The impact bearing support cylinder 106 is inserted into the central through hole of the support base 3 and fixed to it, providing support for the impact cylindrical roller bearing 109, the first self-aligning roller bearing 110, and the second self-aligning roller bearing 111. The first self-aligning roller bearing 110 and the second self-aligning roller bearing 111 restrict the radial displacement of the impact shaft 108, and the impact retaining ring 114 constrains the axial displacement.

[0035] The power source of the impact mechanism includes an impact V-belt 113, an impact drive wheel 115, and an impact motor 116. The impact motor 116 is fixed to the ground by a bracket. The impact drive wheel 115 is provided on the output shaft of the impact motor 116. The impact driven wheel 112 and the impact drive wheel 115 are connected by the impact V-belt 113, which drives the impact mechanism 1 to rotate.

[0036] The impact flywheel 102 is thick at its center and edges. The axial displacement of the center is restricted by the upper clamping plate 103 and the lower clamping plate 104 of the impact flywheel, and it is fixed to the impact shaft 108 by a connecting pin. Two mounting grooves are provided on the outer edge of the top surface of the impact flywheel 102, with the two grooves sharing a common diameter. These grooves are used to mount the impact specimen mechanism 101 and the counterweight, enabling the impact flywheel 102 to achieve dynamic balance. Figures 8-9The impact specimen body mechanism 101 includes an impact body clamp 1011, an impact head 1012, an impact housing 1013, an impact spring 1014, and an impact specimen 1015. The impact body clamp 1011 has a cavity from the head to the tail. The tail of the impact housing 1013 extends into the cavity of the impact body clamp 1011. The impact spring 1014 is disposed in the cavity, with its two ends abutting against the cavity and the tail of the impact housing 1013, respectively. The impact specimen 1015 is disposed in the impact housing 1013. The impact head 1012 is threadedly connected to the impact housing 1013 to press the impact specimen 1015, ensuring that the impact specimen 1015 can be completely removed. Under the force of the impact spring 1014 and the constraint of the cavity, the impact housing 1013 can move freely along the axial direction of the cavity. The bottom diameter of the impact head 1012 is larger than the diameter of the cylindrical part of the impact body clamp 1011 to prevent the impact body clamp 1011 from being impacted during the impact process.

[0037] Combination Figures 10-12 The impact-bearing mechanism 2 includes an impact-bearing flywheel 201, an upper impact-bearing flywheel clamping plate 202, a lower impact-bearing flywheel clamping plate 203, an impact-bearing plate clamp 204, an impact-bearing plate 205, an impact-bearing bearing support mechanism, an impact-bearing shaft 212, an impact-bearing retaining ring 213, and an impact-bearing driven wheel 214. The impact-bearing flywheel 201 is placed horizontally, and the impact-bearing shaft 212 is a vertical shaft. The impact-bearing shaft 212 is equipped with the impact-bearing retaining ring 213, the impact-bearing driven wheel 214, the impact-bearing bearing support mechanism, the upper impact-bearing flywheel clamping plate 202, the impact-bearing flywheel 201, and the lower impact-bearing flywheel clamping plate 203 from top to bottom. The impact-bearing bearing support mechanism includes an upper impact-bearing support cylinder cover 211, an impact-bearing support cylinder 210, a lower impact-bearing support cylinder cover 209, a second impact-bearing self-aligning roller bearing 208, and a first impact-bearing self-aligning roller bearing 209. 7. The impact cylindrical roller bearing 206 and the impact bearing support cylinder 210 are respectively provided with an upper cover 211 and a lower cover 209 on the top and bottom surfaces to form a cylinder body. The impact second self-aligning roller bearing 208, the impact first self-aligning roller bearing 207, and the impact cylindrical roller bearing 206 are located inside the cylinder body and are sleeved on the impact shaft 212 from top to bottom. The impact bearing support cylinder 210 is inserted into the central through hole of the impact moving platform 5 and fixed thereto, providing support for the impact cylindrical roller bearing 206, the impact first self-aligning roller bearing 207, and the impact second self-aligning roller bearing 208. The impact first self-aligning roller bearing 207 and the impact second self-aligning roller bearing 208 restrict the radial displacement of the impact shaft 212, and the impact retaining ring 213 restricts the axial displacement of the impact shaft 212.

[0038] The power source of the impact mechanism includes an impact V-belt 215, an impact drive wheel 216, and an impact motor 217. The impact motor 217 is fixed to the impact moving platform 5 via a bracket. The impact drive wheel 216 is provided on the output shaft of the impact motor 217. The impact driven wheel 214 and the impact drive wheel 216 are connected by the impact V-belt 215, which drives the impact flywheel 201 to rotate.

[0039] The impacted flywheel 201 is restricted in axial displacement by the upper clamping plate 202 and the lower clamping plate 203 of the impacted flywheel, and is fixed to the impacted shaft 212 by a connecting pin; the outer edge of the bottom surface of the impacted flywheel 201 is evenly provided with twenty mounting slots for mounting twenty impacted plate clamps 204. The impacted plate 205 and the impacted plate clamp 204 are threadedly connected to the mounting position of the impacted flywheel 201. During the operation of the device, the impacted plate 205 is impacted and penetrated by the impact head 1012.

[0040] Workflow: During test preparation, check the distance z between the lower surface of the impact-affected moving platform 5 and the upper surface of the second protrusion of the support column 4, and check the distance z between the impact apex of the impact head 1012 and the impact point in the impact plate 205. Then, control the rotation speed of the impact flywheel 102. The flywheel rotates at speed 201 under impact. And the number of impact plates 205 installed Select an appropriate impact interval; after the test begins, the power source of the impact mechanism provides rotational power to the impact mechanism 1, causing the impact mechanism 1 to rotate counterclockwise, and driving the impact specimen body mechanism 101 on the impact mechanism 1 to rotate. The power source of the impacted mechanism provides rotational power to the impacted mechanism 2, causing the impacted mechanism 2 to rotate clockwise. After the impact mechanism 1 and the impacted mechanism 2 maintain a uniform rotation speed, the driving power source drives the impacted moving platform 5 to move downward along the support column 4 until the impacted moving platform 5 moves downward a distance z and reaches the working position. After the driving position is reached, the impact head 1012 will impact and penetrate the impacted plate 205. The impact body clamp 1011 supports the impact head 1012, and the impacted plate clamp 204 fixes and supports the impacted plate 205. During the impact penetration process, the impact head 1012 generates multiple high overloads at short intervals, realizing a penetration test with multiple high overloads at short intervals.

[0041] Assuming the speed of the impact flywheel The speed of the flywheel under impact The relative speeds of the impact flywheel and the impacted flywheel are: The impact-resistant flywheel has 20 evenly spaced installation positions along its edge. For each impacted plate, the following can be calculated:

[0042] Impact interval

[0043] By controlling the speed of the impact flywheel The speed of the flywheel under impact and the number of impact plates installed Different impact intervals can be achieved, as shown in the table below.

[0044]

[0045] In summary, this invention employs a dual-flywheel structure, with the impact flywheel and the main impact flywheel rotating coaxially and in opposite directions at high speed. Compared to a single-flywheel mechanism, this allows for multiple high-overload impacts at shorter intervals. This invention primarily achieves multiple overloads at short intervals by penetrating the impact plate through the impact specimen body mechanism. The impact pulse width and peak value are controlled by adjusting the structure and material of the impact head within the impact specimen body mechanism, as well as the structure and material of the impact plate.

Claims

1. A dual-flywheel short-interval multiple high overload mechanical testing device, characterized in that: The system includes an impact mechanism (1), an impact mechanism power source, an impact-bearing mechanism (2), an impact-bearing mechanism power source, a support base (3), an impact-bearing moving platform (5), a drive power source, a top beam (6), and four support columns (4). The top beam (6), impact-bearing moving platform (5), impact-bearing mechanism (2), impact mechanism (1), and support base (3) are arranged coaxially from top to bottom. The support base (3) is fixed to the ground. The impact mechanism (1) is located on the top surface of the support base (3), with its bottom extending downwards through the center of the support base (3) to connect to the impact mechanism power source. The support columns (4) are evenly distributed and fixed to the ground, restricting and supporting the movement of the impact-bearing moving platform (5). The impact mechanism (2), impact mechanism (3), and support base (4) are arranged in a coaxial manner from top to bottom. The top of the impact mechanism is set on the bottom surface of the impact moving platform (5), and its top passes through the center of the impact moving platform (5) to connect to the impact mechanism power source; a cross-shaped top beam (6) is installed at the top of the support column (4); the impact mechanism power source provides rotational power to the impact mechanism (1), causing the impact mechanism (1) to rotate counterclockwise, and driving the impact specimen body mechanism (101) on the impact mechanism (1) to rotate; the impact mechanism power source provides rotational power to the impact mechanism (2), causing the impact mechanism (2) to rotate clockwise; the driving power source is used to drive the impact moving platform (5) to move up and down along the support column (4); the top beam (6) constrains the displacement of the support column (4) and prevents the support column (4) from bending and swaying during operation.

2. The dual-flywheel short-interval multiple high overload mechanical testing device according to claim 1, characterized in that: The support base (3) is a U-shaped part with an opening facing downwards. A threaded hole is machined in the center of its top plate for installing the impact bearing support cylinder. The impact flywheel (102) is located above the top plate of the support base (3), and the impact driven wheel (112) is located below the top plate of the support base (3).

3. The dual-flywheel short-interval multiple high overload mechanical testing device according to claim 1, characterized in that: The support column (4) is a cylinder with its bottom fixed to the ground. It has two rings of protrusions on its body, the upper one being the first protrusion and the lower one being the second protrusion. The impact-moving platform (5) moves up and down between the first protrusion and the second protrusion.

4. The dual-flywheel short-interval multiple high overload mechanical testing device according to claim 1, characterized in that: The impact mechanism (1) includes an impact specimen body mechanism (101), an impact flywheel (102), an upper impact flywheel clamping plate (103), a lower impact flywheel clamping plate (104), an impact shaft (108), an impact bearing support mechanism, an impact driven wheel (112), and an impact fixing ring (114). The impact flywheel (102) is placed horizontally, and the impact shaft (108) is a vertical shaft. The impact specimen body mechanism (101) is fixed on the impact flywheel (102). The impact shaft (108) is equipped with the upper impact flywheel clamping plate (103), the impact flywheel (102), the lower impact flywheel clamping plate (104), the impact bearing support mechanism, the impact driven wheel (112), and the impact fixing ring (114) from top to bottom. The impact bearing support mechanism includes an upper impact bearing support cylinder cover (105), an impact bearing support cylinder (106), a lower impact bearing support cylinder cover (107), and an impact cylindrical roller shaft. The impact bearing support cylinder (106) is provided with an upper cover (105) and a lower cover (107) on the top and bottom surfaces of the impact bearing support cylinder (106), which together form the cylinder body. The impact cylindrical roller bearing (109), the first self-aligning roller bearing (110), and the second self-aligning roller bearing (111) mounted on the impact shaft (108) from top to bottom are all located in the cylinder body. The impact bearing support cylinder (106) is inserted into the central through hole of the support base (3) and fixed to it, providing support for the impact cylindrical roller bearing (109), the first self-aligning roller bearing (110), and the second self-aligning roller bearing (111). The first self-aligning roller bearing (110) and the second self-aligning roller bearing (111) restrict the radial displacement of the impact shaft (108).

5. The dual-flywheel short-interval multiple high overload mechanical testing device according to claim 4, characterized in that: The power source of the impact mechanism includes an impact V-belt (113), an impact drive wheel (115), and an impact motor (116). The impact motor (116) is fixed to the ground by a bracket. The impact drive wheel (115) is provided on the output shaft of the impact motor (116). The impact driven wheel (112) and the impact drive wheel (115) are connected by the impact V-belt (113) to drive the impact mechanism (1) to rotate. The power source of the impact mechanism includes an impact V-belt (215), an impact drive wheel (216), and an impact motor (217). The impact motor (217) is fixed to the upper right of the impact moving platform (5) by a bracket. The impact drive wheel (216) is provided on the output shaft of the impact motor (217). The impact driven wheel (214) and the impact drive wheel (216) are connected by the impact V-belt (215) to drive the impact flywheel (201) to rotate.

6. The dual-flywheel short-interval multiple high overload mechanical testing device according to claim 4, characterized in that: The impact flywheel (102) is thick at its center and edge. The axial displacement of the center position is restricted by the upper clamping plate (103) and the lower clamping plate (104) of the impact flywheel. It is fixed to the impact shaft (108) by a connecting pin. Two mounting grooves are provided on the outer edge of the top surface of the impact flywheel (102). The two mounting grooves are distributed with a common diameter and are used to install the impact specimen body mechanism (101) and the counterweight, so that the impact flywheel (102) can achieve dynamic balance.

7. The dual-flywheel short-interval multiple high overload mechanical testing device according to claim 4, characterized in that: The impact specimen body mechanism (101) includes an impact body clamp (1011), an impact head (1012), an impact shell (1013), an impact spring (1014), and an impact specimen (1015). The impact body clamp (1011) has a cavity from the head to the tail. The tail of the impact shell (1013) extends into the cavity of the impact body clamp (1011). The impact spring (1014) is set in the cavity, with its two ends abutting against the cavity and the tail of the impact shell (1013) respectively. The impact specimen (1015) is set in the impact shell (1013). The impact head (1012) is threadedly connected to the impact shell (1013) to press the impact specimen (1015). Under the force of the impact spring (1014) and the constraint of the cavity, the impact shell (1013) moves freely along the axial direction of the cavity.

8. The dual-flywheel short-interval multiple high overload mechanical testing device according to claim 7, characterized in that: The impact-bearing mechanism (2) includes an impact-bearing flywheel (201), an upper impact-bearing flywheel clamping plate (202), a lower impact-bearing flywheel clamping plate (203), an impact-bearing plate clamp (204), an impact-bearing plate (205), an impact-bearing bearing support mechanism, an impact-bearing shaft (212), an impact-bearing retaining ring (213), and an impact-bearing driven wheel (214). The impact-bearing flywheel (201) is placed horizontally, and the impact-bearing shaft (212) is a vertical shaft. The impact-bearing shaft (212) is equipped with the impact-bearing retaining ring (213), the impact-bearing driven wheel (214), the impact-bearing bearing support mechanism, the upper impact-bearing flywheel clamping plate (202), the impact-bearing flywheel (201), and the lower impact-bearing flywheel clamping plate (203) from top to bottom. The impact-bearing bearing support mechanism includes an upper impact-bearing support cylinder cover (211), an impact-bearing support cylinder (210), a lower impact-bearing support cylinder cover (209), and an impact-bearing second self-aligning roller bearing (200). 8) The impact-bearing first self-aligning roller bearing (207), the impact-bearing cylindrical roller bearing (206), the impact-bearing support cylinder (210) is provided with an impact-bearing support cylinder upper cover (211) and an impact-bearing support cylinder lower cover (209) on the top and bottom surfaces respectively to form a cylinder body. The impact-bearing second self-aligning roller bearing (208), the impact-bearing first self-aligning roller bearing (207), and the impact-bearing cylindrical roller bearing (206) are located inside the cylinder body and are inserted into the center through hole of the impact-bearing moving platform (5) and fixed to it, providing support for the impact-bearing cylindrical roller bearing (206), the impact-bearing first self-aligning roller bearing (207), and the impact-bearing second self-aligning roller bearing (208). The impact-bearing first self-aligning roller bearing (207) and the impact-bearing second self-aligning roller bearing (208) restrict the radial displacement of the impact-bearing shaft (212).

9. The dual-flywheel short-interval multiple high overload mechanical testing device according to claim 8, characterized in that: The impacted flywheel (201) is restricted from axial displacement by the upper clamping plate (202) and the lower clamping plate (203) of the impacted flywheel, and is fixed to the impacted shaft (212) by a connecting pin; the outer edge of the bottom surface of the impacted flywheel (201) is evenly provided with twenty mounting slots for mounting twenty impacted plate clamps (204), and the impacted plate (205) and the impacted plate clamps (204) are threadedly connected to the mounting position of the impacted flywheel (201).

10. The dual-flywheel short-interval multiple high overload mechanical testing device according to claim 9, characterized in that: While the impact test specimen body mechanism (101) rotates counterclockwise under the drive of the impact mechanism (1), the impact plate (205) rotates clockwise under the drive of the impact mechanism (2). After the impact mechanism (1) and the impact mechanism (2) have stabilized, the driving power source drives the impact moving platform (5) to move downward, so that the impact test specimen body mechanism (101) impacts and penetrates the impact point of the impact plate (205). At the initial position, the upper surface of the impact moving platform (5) is in contact with the lower surface of the first boss of the support column (4). After the impact moving platform (5) is driven to the work station by the driving power source, its lower surface is in contact with the upper surface of the second boss of the support column (4). Assuming that the distance between the first boss and the second boss of the support column (4) is The thickness of the impacted mobile platform (5) is The movable range of the impacted mobile platform (5) is... In the initial position, the distance between the impact apex of the impact head (1012) and the bottom surface of the impacted plate (205) is... The impact point in the impact plate (205) is far from the bottom surface of the impact plate (205). At this time, the distance between the impact apex of the impact head (1012) and the impact point in the impact plate (205) is set as follows: During the test, the driving power source drives the impacted mobile platform (5) to move downwards. Distance, reaching the point of action, the impact head (1012) impacts and penetrates the impacted plate (205) at the impacted position; during the impact penetration process, the impact head (1012) generates multiple high overloads at short intervals inside, realizing the penetration test of multiple high overloads at short intervals.

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