A device for measuring the impact destructive force of a vehicle colliding with an uneven road surface

Abstract

The embodiment of the present application discloses a device for measuring the destructive force of the impact when a whole vehicle collides with an uneven road surface, which is used to predict the collision impact force on the fastened parts when the loose parts of the engine collide with the fastened parts, and includes: a base, a support frame, a rocker arm shaft, a force measuring line, a rocker arm, a flyweight, a flyweight rod, a limit rod and a spring; the support frame is fixed on the base, the rocker arm is suspended on the support frame through the force measuring line, and is connected to the support frame through the rocker arm shaft; the rocker arm includes a collision end and a force measuring end, the limit rod and the flyweight rod are installed on the base, the limit rod is fixed below the force measuring end, the flyweight rod is fixed below the collision end, and the flyweight is movably sleeved on the flyweight rod; the spring is installed between the limit rod and the rocker arm shaft, one end of the spring is fixedly connected to the rocker arm, and the other end is fixedly connected to the base; when the collision end of the rocker arm is not collided, the force measuring line is perpendicular to the rocker arm.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of automobile engine technology, and in particular to a device for measuring the destructive force of a collision between a vehicle and an uneven road surface. Background Art

[0002] In automobile engines, some parts are not fastened and can move freely to a limited extent. For example, the valve chain system with valve clearance, when the valve chain system is not in the state of pressing the valve, its push rod and rocker arm are in a loose state and can move freely to a limited extent; or for example, for some four-valve engines using valve bridges, when the valve chain system is not in the state of pressing the valve, its valve bridge is also in a loose state and can move freely to a limited extent. When the push rod, tappet, valve bridge and other parts are in a loose state, if the whole vehicle collides with an uneven road surface, the push rod, tappet, valve bridge and other freely movable parts will collide with fixed parts such as rocker arms. When a car is driving at high speed on the road, it is inevitable that the tire will collide with potholes, bosses, stones, and steps on the road. When it is hit, the impact force generated will spread outward from the collision point and be transmitted to the driver, passengers and various parts of the car.

[0003] When a car hits an obstacle or brakes suddenly, it will stop suddenly, but people or parts that are not fixed in the car will keep their original motion due to inertia, and people will collide with objects in the car, and even fly out of the car in serious cases. The instantaneous high-speed collision will generate stress and deformation, which will propagate in the parts in the form of waves, affecting the parts, and seriously damaging the parts, causing them to fail. At present, it is necessary to provide a test tool that can be used to test the impact destructive force generated by a car colliding with an uneven road surface, so as to predict the impact of the collision when the loose parts of the engine collide with the fastened parts, and improve the high-speed driving safety factor of the car. Summary of the invention

[0004] An embodiment of the present application provides a device for measuring the impact destructive force of a vehicle colliding with an uneven road surface, which is used to predict the collision impact force received by the fastening parts when the loose parts of the engine collide with the fastening parts when the vehicle collides with the uneven road surface or brakes suddenly.

[0005] To achieve the above solution, the present invention provides the following technical solutions:

[0006] A device for measuring the impact destructive force of a vehicle colliding with an uneven road surface, comprising:

[0007] Base, support frame, rocker arm shaft, force measuring line, rocker arm, flyweight, flyweight rod, limit rod and spring;

[0008] The support frame is fixed on the base, the rocker arm is suspended on the support frame through the force measuring line, and is connected to the support frame through the rocker arm shaft;

[0009] The rocker arm comprises a collision end and a force measuring end, the limit rod and the flyweight rod are installed on the base, the limit rod is fixed below the force measuring end, the flyweight rod is fixed below the collision end, and the flyweight is movably sleeved on the flyweight rod;

[0010] The spring is installed between the limit rod and the rocker arm shaft, one end of the spring is fixedly connected to the rocker arm, and the other end is fixedly connected to the base;

[0011] When the collision end of the rocker arm is not collided, the force measuring line is perpendicular to the rocker arm.

[0012] Optionally, the flyweight is movably sleeved on the flyweight rod and comprises:

[0013] The flyweight is provided with an inner cavity, the diameter of which is larger than the outer diameter of the flyweight rod, and the inner cavity is used to enable the flyweight to move axially along the flyweight rod but not to separate from the flyweight rod.

[0014] Optionally, a gap is provided between the top of the flying weight rod and the collision end, a gap is provided between the top end of the limiting rod and the force measuring end, and the limiting rod is used to limit the rotation angle of the rocker arm.

[0015] Optionally, the limiting rod and the flyweight rod are installed on the base and include:

[0016] The bottoms of the limiting rod and the flying block rod are both fixedly connected to the base through threads.

[0017] Optionally, the support frame includes a suspension beam arranged at the top and a first support beam and a second support beam arranged at both sides, and a plurality of connecting components are respectively arranged on the suspension beam and the rocker arm, and the plurality of connecting components are used to fix the force measuring lines.

[0018] Optionally, a square hole is provided in the middle of the first support beam, the diameter of the square hole is larger than the diameter of the rocker arm, the rocker arm passes through the first support beam through the square hole, a through hole is opened in the middle of the rocker arm, the rocker arm shaft passes through the rocker arm through the through hole, and the contact surface between the through hole and the rocker arm shaft is smooth and provided with a gap.

[0019] Optionally, the plurality of connecting parts are hanging rings or hooks or threaded holes.

[0020] Optionally, the rocker arm is a rigid rod.

[0021] Optionally, the support frame is made of a rigid material.

[0022] Optionally, the flyweight is a round-cap-shaped metal block, and the flyweight rod is a cylindrical rod.

[0023] In the above technical scheme, the measuring device is installed and fastened at the position of the whole vehicle or engine to be tested. When the whole vehicle or the engine collides, the collision end of the rocker arm will be subjected to the instantaneous collision impact of the flying block, and the force measuring end of the rocker arm will rotate toward the side of the limit rod, so that the force measuring line is subjected to the pulling force of the force measuring end of the rocker arm. The equivalent pulling force received by the force measuring line when the collision occurs is judged based on the relationship curve between the plastic deformation elongation of the force measuring line and the pulling force, and the equivalent collision impact force of the collision end is calculated according to the lever principle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 A schematic diagram of a structure of a device for measuring the destructive force of a collision between a vehicle and an uneven road surface provided in an embodiment of the present application;

[0026] Figure 2 A right view of a device for measuring the destructive force of a vehicle colliding with an uneven road surface provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In addition, the embodiments shown below do not limit the invention described in the claims in any way. In addition, all the contents of the configurations shown in the embodiments below are not limited to the solutions required as the invention described in the claims.

[0029] An embodiment of the present application provides a device for measuring the impact destructive force of a vehicle colliding with an uneven road surface, which is used to measure and study the collision of a vehicle with an uneven road surface or sudden braking, so as to predict the impact of the collision impact force on the fastening parts when the loose parts of the engine collide with the fastening parts.

[0030] See also Figure 1 and Figure 2 , Figure 1A structural schematic diagram of a device for measuring the impact destructive force of a whole vehicle colliding with an uneven road surface provided in an embodiment of the present application, comprising: a base 1, a support frame 2, a rocker arm shaft 3, a force measuring line 4, a rocker arm 5, a flyweight 6, a flyweight rod 7, a limit rod 8 and a spring 9; the support frame 2 is fixed on the base 1, the rocker arm 5 is suspended on the support frame 2 through the force measuring line 4, and is connected to the support frame 2 through the rocker arm shaft 3; the rocker arm 5 comprises a collision end 51 and a force measuring end 52, the limit rod 8 and the flyweight rod 7 are installed on the base 1, the limit rod 8 is fixed below the force measuring end 52, the flyweight rod 7 is fixed below the collision end 51, and the flyweight 6 is movably sleeved on the flyweight rod 7; the spring 9 is installed between the limit rod 8 and the rocker arm shaft 3, one end of the spring 9 is fixedly connected to the rocker arm 5, and the other end is fixedly connected to the base 1, and when the collision end 51 of the rocker arm 5 is not collided, the force measuring line 4 is perpendicular to the rocker arm 5.

[0031] The entire measuring device can be fixed on the whole vehicle or engine parts through the base 1, the support frame 2 is fixedly connected to the base 1, the force measuring line 4 is fixedly tied between the rocker arm 5 and the top side of the support frame 2, the rocker arm 5 is fixedly connected between the support frame 2 and the base 1 through the rocker arm shaft 3, the rocker arm 5 includes a collision end 51 and a force measuring end 52, the flyweight rod 7 is located below the collision end 51, and a flyweight 6 is movably sleeved on the flyweight rod 7. The flyweight 6 is used to simulate the loose parts on the car, and the flyweight 6 performs a collision impact on the collision end 51. The rocker arm 5 can be designed with reference to the parts of the engine that are impacted by the collision, such as the length, width, height, collision surface shape and size and material of the intake and exhaust rocker arm of the engine. The quality design of the flyweight 6 can refer to the actual quality of the loose parts of the engine such as push rods, tappets, valve bridges, etc., or set a variety of qualities to be studied according to research needs. The collision surface of the flyweight 6 can also be designed with reference to the actual shape and size of the loose parts of the engine, so that the collision destructive force test is closer to the actual situation. The force measuring line 4 is fixed on one side of the force measuring end 52, and a limit rod 8 is arranged below the force measuring end 52, and the limit rod 8 is used to limit the rotation angle of the rocker arm 5. The spring 9 is installed between the limit rod 8 and the rocker arm shaft 3, and one end of the spring 9 is fixedly connected to the rocker arm 5, and the other end is fixedly connected to the base 1. The spring 9 is an ordinary spring, one end of which is fixed below the rocker arm 5, and the other end is fixed on the base 1, so that the force measuring end 52 of the rocker arm 5 is subjected to a slight downward pulling force to ensure that the rocker arm 5 will not rotate at will, and the gap between its collision end and the flying block 6 remains unchanged in the non-collision state.

[0032] It should be noted that the test vehicle is operated according to the set specific requirements. The specific requirements can be passing through set obstacles such as steps, pits, slopes, etc. at a certain speed, or sudden acceleration or braking and other vehicle conditions. After the operation is completed, the vehicle stops and the elongation of the force measuring line 4 due to plastic deformation is observed. In addition, the force measuring line 4 is a metal wire or rod calibrated by professional equipment, such as a steel wire or a bolt, or a wire or rod made of non-metallic materials, such as a plastic wire or a cotton wire. Before using the measuring device, it is necessary to first measure the relationship curve between the elongation of the force measuring line 4 due to plastic deformation and the tension it receives, and the critical value of the tension received by the force measuring line 4 when the force measuring line is broken, using professional equipment.

[0033] In addition, if the measuring device is installed horizontally on the test vehicle, the flyweight 6 can only move in the vertical direction, and the impact force of the collision in the vertical direction of the rocker arm 5 is measured; if the measuring device is installed vertically, the flyweight 6 can only move in the horizontal direction, and the impact force of the collision in the horizontal direction of the rocker arm 5 is measured. In addition to vertical and horizontal installation, it can also be installed obliquely according to needs or the actual situation of the installation surface. When multiple locations need to be measured, multiple locations can also be installed. According to needs, multiple measuring devices with different types of force measuring lines 4 can also be installed at one time to reduce the number of measurement tests; or multiple devices of the present invention with the same type of force measuring lines 4 can be installed at one time to verify the repeatability and accuracy of the measurement data.

[0034] In the embodiment of the present invention, the flyweight 6 is provided with an inner cavity, the diameter of which is larger than the outer diameter of the flyweight rod 7, and the inner cavity is used to make the flyweight 6 move axially along the flyweight rod 7 but the movement in the direction perpendicular to the flyweight rod 7 is limited, and the flyweight 6 will not separate from the flyweight rod 7 when a collision occurs. A gap is provided between the top of the flyweight rod 7 and the collision end 51, and a gap is provided between the top of the limit rod 8 and the force measuring end 52, and the limit rod 8 is used to limit the rotation angle of the rocker arm 5. Under normal circumstances, due to the limiting effect of the limit rod 8, the rocker arm 5 cannot rotate too much upward, and the flyweight 6 can only move between the rocker arm 5 and the flyweight rod 7 and cannot separate from the flyweight rod 7.

[0035] In the embodiment of the present invention, the bottoms of the limit rod 8 and the fly block rod 7 are both fixedly connected to the base 1 by threads. When necessary, the fly block rod 7 can be rotated appropriately, and the height of the fly block rod 7 can be adjusted by threads to adjust the gap between the fly block rod 7 and the rocker arm 5, or the limit rod 8 can be rotated appropriately, and the height of the limit rod 8 can be adjusted by threads to adjust the gap between the limit rod 8 and the rocker arm. There is a certain gap between the fly block 6 and the rocker arm 5, and the gap can be set with reference to the engine valve clearance. There is a certain gap between the limit rod 8 and the rocker arm 5. When the rocker arm 5 rotates to no gap with the limit rod 8, the rocker arm 5 is restricted and cannot continue to rotate.

[0036] In the embodiment of the present invention, the support frame 2 includes a suspension beam 21 arranged at the top and a first support beam 22 and a second support beam 23 arranged at both sides, and a plurality of connecting components are respectively arranged on the suspension beam 21 and the rocker arm 5, and the plurality of connecting components are used to fix and connect the force measuring line 4. The plurality of connecting components are hanging rings or hooks or threaded holes. The distance from the force measuring line 4 to the fulcrum of the rocker arm 5 can be changed through the plurality of connecting components to obtain multiple measurement results.

[0037] It should be noted that when the collision end 5 is subjected to the same impact force, the closer the force measuring line 4 is to the end surface direction of the force measuring end 52 of the rocker arm 5, the greater the distance between the force measuring line 4 and the fulcrum, so the tension it receives is smaller. The force measuring line 4 is continuously adjusted and measured until the force measuring line 4 does not break after the collision, and fine-tuned in the unbroken state so that the force measuring line 4 does not break after the collision but undergoes plastic deformation, that is, the length of the force measuring line 4 is elongated. At this time, the equivalent tension received by the force measuring line 4 during the collision can be determined by the calibrated critical value of the plastic deformation of the force measuring line 4 and the relationship curve between the plastic deformation elongation and the tension, and the equivalent collision impact force of the collision end 51 is calculated according to the lever principle. Since the fulcrum of the rocker arm 5 is the center of gravity, during the collision, the impact force generated by the rocker arm 5 itself due to the collision will be concentrated on the support point and offset by the reverse force generated by the support point, which will not affect the measurement of the device of the present invention, thereby ensuring the accuracy of the measurement of the device of the present invention. To ensure the effectiveness of the measurement, collision impact reliability and durability tests can be arranged to be repeated multiple times or even carried out according to certain specifications.

[0038] In the embodiment of the present invention, a square hole is provided in the middle of the first support beam 22, and the diameter of the square hole is larger than the diameter of the rocker arm 5. The rocker arm 5 passes through the first support beam 22 through the square hole. A through hole is provided in the middle of the rocker arm 5, and the rocker arm shaft 3 passes through the rocker arm 5 through the through hole. The contact surface between the through hole and the rocker arm shaft 3 is smooth and a gap is provided. In order to reduce the friction between the rocker arm shaft 3 and the through hole, lubricating oil can also be applied between the through hole and the rocker arm shaft 3, so that the rocker arm 5 can be more easily rotated with the rocker arm shaft 3 as the center.

[0039] In an embodiment of the present invention, the materials of the support frame 2 and the rocker arm 5 of the measuring device are both hard materials that are not easy to deform. For example, the rocker arm 5 is a hard rod, the material of the support frame 2 is a rigid material, the flyweight 6 is a round cap-shaped metal block, and the flyweight rod 7 is a cylindrical rod, so as to obtain more accurate measurement results.

[0040] It should be noted that after assembling the measuring device, a force measuring line 4 of a suitable type or model is fixed on the measuring device. When tightening the force measuring line 4, it is necessary to ensure that the rocker arm 5 is parallel to the suspension beam 21 of the support frame 2. If the rocker arm 5 is regarded as a lever, its fulcrum is at the position of the rocker arm shaft 3, and the fulcrum is also equivalent to the center of gravity of the rocker arm 5. Generally, the force measuring line 4 is installed from the position close to the fulcrum of the rocker arm 5, that is, close to the rocker arm shaft 3. Assume that the collision impact force generated by the collision between the flying weight 6 and the collision end 51 of the rocker arm 5 is F 碰 , the distance from the collision end to the fulcrum is L 碰 , the tension of force line 4 during collision is F 拉 , the distance from the force line 4 to the fulcrum is L 拉 , then according to the lever principle, at the moment of collision there is F 碰 L 碰 =F 拉 L 拉 , that is, F 拉 =F 碰 L 碰 / L 拉 Therefore, when a collision occurs, the tension on the force measuring line 4 is the collision impact force multiplied by the distance from the collision end 51 to the fulcrum and the distance from the force measuring line 4 to the fulcrum. Since the distance from the collision end 51 to the fulcrum is greater than the distance from the force measuring line 4 to the fulcrum, the tension on the force measuring line 4 is greater than the actual collision impact force, thereby amplifying the impact force, reducing the difficulty of impact force measurement, and increasing the accuracy of measurement.

[0041] In addition, measure the distance L1 from the outermost edge of the force measuring end 52 of the rocker arm 5 to the suspension beam 21 of the support frame 2. When the rocker arm 5 is parallel to the suspension beam 21 of the support frame 2, this L1 is the same as the length of the force measuring line 4. After the collision end 51 of the rocker arm 5 is impacted, if the force on the force measuring line 4 is within its own elastic range, then the measured L1 after the collision remains unchanged. If the force on the force measuring line 4 exceeds its own elastic range and is not broken, then the force measuring line 4 will undergo plastic deformation and elongation. Suppose the distance from the outermost edge of the rocker arm 5 to the fulcrum is L 外 , the distance from the fixed point of force line 4 on rocker arm 5 to the fulcrum is L 拉 After the collision end 51 is impacted, the force measuring line 4 will undergo plastic deformation. When the force measuring line undergoes plastic deformation, it is assumed that the elongation is L 测力线伸长 , measure the distance L2 from the outermost edge of the force measuring end 52 of the rocker arm 5 to the suspension beam 21 of the support frame 2. According to the similarity criterion of triangles, the increase in the distance from the outermost edge of the force measuring end 52 of the rocker arm 5 to the suspension beam 21 of the support frame 2 is L=L2-L1=L 测力线伸长 L 外 / L 拉Therefore, after the force measuring line 4 undergoes plastic deformation during collision, the increase in the distance from the outermost edge of the force measuring end 52 of the rocker arm 5 to the suspension beam 21 of the support frame 2 is equal to the elongation of the force measuring line 4 multiplied by the ratio of the distance from the outermost edge of the force measuring end 52 of the rocker arm 5 to the fulcrum to the distance from the force measuring line 4 to the fulcrum. Since the distance from the outermost edge of the force measuring end 52 of the rocker arm 5 to the fulcrum is greater than the distance from the force measuring line to the fulcrum, the plastic deformation elongation of the force measuring line 4 is magnified, reducing the difficulty of measuring the plastic deformation elongation of the force measuring line 4, thereby increasing the accuracy of the measurement.

[0042] In addition, the measuring device measures the equivalent impact force during the collision impact rather than the actual impact force. The actual impact force is not a constant value, but changes with time. The process from the beginning to the end of the collision changes from small to large, and then decreases at the peak value, forming a peak shape. The force of the force measuring line 4 is fractured or plastically deformed under the action of the stress wave generated by the collision impact. The force is not uniform. There is force where the stress wave reaches, and there is no force where the stress wave does not reach. The force is doubled where the stress wave is superimposed. When the rocker arm 5 pulls the force measuring line 4 due to the collision impact, the lower end of the force measuring line 4 fastened to the rocker arm 5 is first affected by the impact force and generates stress and deformation. This stress and deformation will propagate upward in the form of waves, and will be reflected when it reaches the top of the force measuring line 4. After the reflected wave is superimposed on the incident wave, the stress will be doubled, so it is easier to break where the incident wave and the reflected wave are superimposed and the stress is doubled. That is, the collision impact force received by the force measuring line 4 is not equal to the collision impact force received by the collision end 51, nor is it a linear proportional relationship. There are losses in the propagation of stress waves in the rod or line, losses in the reflection, and the direction of reflection may not be completely opposite to the incident direction. Some waves will also be reflected and superimposed when they reach the edge of the rod or line, etc., which makes the propagation and reflection superposition calculation of stress waves in a rod and line of limited length very complicated. Therefore, when the force measuring line 4 breaks or undergoes plastic deformation, the stress at the break or plastic deformation is not equal to the stress generated by the rocker arm 5 pulling the force measuring line 4 at the beginning of the impact. It will be larger, but not necessarily 2 times. It may be larger or smaller. Therefore, this measuring device can be used to study the collision and impact force on the fastening parts and their fastening devices when the whole vehicle collides with an uneven road surface or brakes suddenly, and the loose parts on the whole vehicle and the engine collide and impact the fastening parts.

[0043] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only used to illustrate the relative positional relationships between the various components or components, and do not particularly limit the specific installation orientations of the various components or components.

[0044] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0045] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In addition, the structures, proportions, sizes, etc. drawn in the drawings in the present application are only used to match the contents disclosed in the specification so as to facilitate the understanding and reading of those skilled in the art, and are not used to limit the restrictive conditions that can be implemented in the present application. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present application without affecting the effects and purposes that can be achieved by the present application.

Claims

1. A device for measuring the impact destructive force of a vehicle colliding with an uneven road surface, characterized in that: include: Base, support frame, rocker arm shaft, force measuring line, rocker arm, flyweight, flyweight rod, limit rod and spring; The support frame is fixed on the base, the rocker arm is suspended on the support frame through the force measuring line, and is connected to the support frame through the rocker arm shaft; The rocker arm includes a collision end and a force measuring end, the limit rod and the flyweight rod are installed on the base, the limit rod is fixed below the force measuring end, the flyweight rod is fixed below the collision end, the flyweight is movably sleeved on the flyweight rod, a gap is provided between the top of the flyweight rod and the collision end, a gap is provided between the top of the limit rod and the force measuring end, and the limit rod is used to limit the rotation angle of the rocker arm; The spring is installed between the limit rod and the rocker arm shaft, one end of the spring is fixedly connected to the rocker arm, and the other end is fixedly connected to the base; When the collision end of the rocker arm is not collided, the force measuring line is perpendicular to the rocker arm.

2. The device for measuring the impact destructive force of a vehicle colliding with an uneven road surface according to claim 1, characterized in that: The flying block is movably sleeved on the flying block rod and comprises: The flyweight is provided with an inner cavity, the diameter of which is larger than the outer diameter of the flyweight rod, and the inner cavity is used to enable the flyweight to move axially along the flyweight rod but not to separate from the flyweight rod.

3. The device for measuring the impact destructive force of a vehicle colliding with an uneven road surface according to claim 1, characterized in that: The limiting rod and the flying block rod are installed on the base and include: The bottoms of the limiting rod and the flying block rod are both fixedly connected to the base through threads.

4. The device for measuring the impact destructive force of a vehicle colliding with an uneven road surface according to claim 1, characterized in that: The support frame includes a suspension beam arranged at the top and a first support beam and a second support beam arranged at both sides. A plurality of connecting components are respectively arranged on the suspension beam and the rocker arm, and the plurality of connecting components are used to fix and connect the force measuring lines.

5. The device for measuring the impact destructive force of a vehicle colliding with an uneven road surface according to claim 4, characterized in that: A square hole is provided in the middle of the first support beam, and the diameter of the square hole is larger than the diameter of the rocker arm. The rocker arm passes through the first support beam through the square hole. A through hole is opened in the middle of the rocker arm, and the rocker arm shaft passes through the rocker arm through the through hole. The contact surface between the through hole and the rocker arm shaft is smooth and provided with a gap.

6. The device for measuring the impact destructive force of a vehicle colliding with an uneven road surface according to claim 5, characterized in that: The plurality of connecting parts are hanging rings or hooks or threaded holes.

7. The device for measuring the impact destructive force of a vehicle colliding with an uneven road surface according to any one of claims 1 to 5, characterized in that: The rocker arm is a rigid rod.

8. The device for measuring the impact destructive force of a vehicle colliding with an uneven road surface according to any one of claims 1 to 5, characterized in that: The support frame is made of a rigid material.

9. The device for measuring the impact destructive force of a vehicle colliding with an uneven road surface according to any one of claims 1 to 5, characterized in that: The flyweight is a round cap-shaped metal block, and the flyweight rod is a cylindrical rod.

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