Device and method for testing motion performance of multifunctional intelligent electric trolley

Abstract

The invention discloses a motion performance testing device for a multifunctional intelligent electric trolley. The motion performance testing device comprises a sample mounting table, mounting mechanisms arranged on the two sides of the sample mounting table, sliding frame mechanisms arranged on the two sides of the sample mounting table and detection mechanisms arranged on the sliding frame mechanisms. According to the device, the test of the central part or the side edge position of the anti-collision beam in the radial direction can be realized through the radial adjusting assembly, and the test of different positions of the anti-collision beam in the axial direction can be realized through the sliding frame mechanism; the anti-collision beam is inclined through a mounting frame structure of the mounting mechanism, and the inclined positive pressure test is further realized. According to the device, the switching mode of static pressure testing and impact testing is simple and convenient, the testing pressure head better simulates the actual impact condition of the anti-collision beam in a degaussing falling mode, simulation data are more real, diversified and accurate, and practicability is better.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile performance testing, and in particular to a multifunctional intelligent electric car motion performance testing device and a testing method. Background Art

[0002] In the process of verifying the vehicle's motion safety performance, a series of vehicle functions are usually tested or verified, including anti-collision performance testing. The anti-collision beam is a device used to reduce the impact energy of the vehicle when it is hit. It can effectively absorb the impact energy when the vehicle collides, minimize the damage to the door caused by the impact force, and thus protect the vehicle. Since the side collision of a car is the largest type of accident that causes harm to the occupants, the anti-collision beam will be verified in the car design to improve the performance and cost of the anti-collision beam.

[0003] The existing anti-collision beam test uses a three-point bending performance test and an impact test; the three-point bending performance test is to fix the two ends of the anti-collision beam and slowly load the pressure head in the middle until the anti-collision beam collapses, and the change in the stiffness of the anti-collision beam is judged by the output force-displacement curve. The impact test is to perform various tests by dropping the pressure head directly on the anti-collision beam test position. The existing patent publication number CN118090477A is a lightweight automobile anti-collision beam performance testing device and method, which realizes the rapid implementation of static pressure test and impact test in the same device, but the overall design of this structure is complex, the conversion method is inflexible, and the operation is cumbersome; in particular, its detection block is small in size and light in weight, and its detection block uses the movable rod 52 to impact its first detection block under the deformation force of the second spring. Its first detection block is connected to a long rod movable rod, and it cannot truly simulate the actual anti-collision beam being hit by the falling impact of the heavy impact block; its "second detection block 72 is squeezed on the side of the beam plate 31, and the second detection block 72 rotates with the rotating shaft of the rotating module 71 to fit on the side of the beam plate 31" to test the inclination angle of the beam. The structure is fixed in size and cannot adapt to the test of beam plates of different widths, and its practicality is not good. In addition, during the test process, different loads are applied to the anti-collision beam for multiple tests, which causes the anti-collision beam to generate heat, thus affecting the next bending test. Therefore, it is necessary to wait for the anti-collision beam to cool down before the next bending test can be carried out, which is time-consuming. The existing equipment is unable to reasonably arrange the cooling equipment according to whether the temperature of the beam changes after multiple tests. Summary of the invention

[0004] The present invention provides a multifunctional intelligent electric vehicle motion performance testing device which can realize anti-collision beam performance testing at different angles and positions, has more diverse and accurate simulation data, is more flexible to use, and has better practicality.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: In a first aspect, the present invention provides a multifunctional intelligent electric vehicle motion performance testing device, comprising a sample mounting platform, mounting mechanisms arranged on both sides of the sample mounting platform, a sliding frame mechanism arranged on both sides of the sample mounting platform, and a detection mechanism arranged on the sliding frame mechanism; The bottom of the mounting mechanism is mounted on the sample mounting platform in an axially movable manner, and the upper part of the mounting mechanism is connected to the two ends of the anti-collision beam sample; the sliding frame mechanism includes arc-shaped rods arranged on both sides of the sample mounting platform, and the two arc-shaped rods are provided with sliding grooves on the opposite sides; The detection mechanism includes a slider with two ends slidably installed in the slide groove of the arc rod, a cross bar connecting the two sliders, a radial adjustment component arranged on the cross bar, and a detection component installed below the radial adjustment component; the cross bars on both sides are connected to the slider as connecting rods; the radial adjustment component includes a first motor, a screw rod with one end connected to the first motor and the other end rotatably connected to the cross bar, a nut member is sleeved on the screw rod, and an encoder is installed in the first motor; The detection assembly includes a mounting frame and a test pressure head installed below the nut member, an electric telescopic cylinder is provided below the mounting frame, a connecting block is fixedly connected to the bottom of the electric telescopic cylinder, an annular groove is provided at the bottom of the connecting block, a magnet block that is powered and magnetized is installed in the annular groove, downwardly extending quick limit mechanisms are provided on both sides of the mounting frame, an annular iron block that cooperates with the magnet block is provided on the upper surface of the test pressure head, and assembly grooves that cooperate with the quick limit mechanisms are also provided on both sides of the test pressure head.

[0006] In a preferred technical solution, a cavity is provided between the magnet block and the top surface of the annular groove.

[0007] In a preferred technical solution, there are two quick limiting mechanisms, which are respectively arranged on opposite sides of the test pressure head; the quick limiting mechanism includes a receiving block, a small electric push rod assembly arranged at the bottom of the receiving block and installed horizontally on the side, the lower part of the receiving block is provided with a mounting hole, the electric push rod assembly includes a cylinder and a piston rod plugged into the cylinder, the cylinder is fixed to the outside of the mounting hole of the receiving block, one end of the piston rod is provided with a plug-in block placed in the mounting hole, and the front end of the plug-in block extends out of the mounting hole and is inserted into the assembly groove.

[0008] In a preferred technical solution, a through hole running through the upper and lower parts is provided at the center of the test pressure head, and a thin rod is installed at the bottom of the connecting block corresponding to the position of the through hole, and the diameter of the thin rod is smaller than the diameter of the through hole; a temperature sensor is connected to the end of the thin rod, and the length of the thin rod is not greater than the height of the test pressure head.

[0009] In a preferred technical solution, the annular groove is a rectangular ring groove structure, and the magnet block is a rectangular ring structure that matches the shape of the annular groove.

[0010] In a preferred technical solution, a water cooling device is installed on one side of the sample mounting table, and a shallow groove is provided on the inner side of the two axial slide grooves corresponding to the surface of the sample mounting table. The water cooling device includes a water-cooled sliding assembly and a water spray assembly. The water-cooled sliding assembly includes a slide rail with a screw structure axially arranged on one side of the shallow groove, a nut mounting seat slidably sleeved on the slide rail, and a rotating motor arranged at one end of the slide rail, and the other end of the slide rail is mounted on the side of the shallow groove through a base and the slide rail can be rotatably mounted on the base; the water spray assembly includes a connecting seat above the mounting nut mounting seat, a water pipe connecting pipe installed above the mounting seat, and a adapter rotatably sleeved on the top of the water pipe connecting pipe; an interface is provided at the lower part of the water pipe connecting pipe, and the interface is connected to a hose, and the other end of the hose is connected to a water tank placed at the bottom of the sample mounting table, and a water pump is installed at the interface between the hose and the water tank.

[0011] In a preferred technical solution, an electromagnetic valve is installed in the middle of the water pipe connection, the water outlet of the adapter is arranged on the upper side wall, and a spray pipe is connected through a water pipe joint; a plurality of spray heads are evenly distributed at the bottom of the spray pipe; A turbine is fixedly sleeved on the lower outer wall of the water pipe connecting pipe; a worm gear motor is installed on the upper side wall of the water pipe connecting pipe, and the output shaft of the worm gear motor is connected to a worm meshing with the turbine.

[0012] In a preferred technical solution, a water outlet is installed at the bottom of the shallow trough, and the water outlet is connected to a cooling trough arranged on the side of the water tank through a water outlet pipe. The cooling trough is connected to the water tank through a connecting pipe, and a filter screen and a solenoid valve are provided on the connecting pipe. A temperature sensor is also provided in the water tank.

[0013] In a preferred technical solution, the mounting mechanism comprises a sliding base plate slidably connected to the surface of the sample mounting table and a mounting frame fixedly connected to the sliding base plate, the middle part of the mounting frame is provided with an arc groove, a semi-cylinder is provided in the arc groove, a mounting portion is extended upward from the middle part of the upper surface of the semi-cylinder, and the upper surface of the mounting portion is the mounting surface for mounting the energy absorption box; a rotating shaft hole is dug at the center position of the semi-cylinder, a rotating shaft is fixedly connected to the rotating shaft hole, one side of the rotating shaft is rotatably connected to the side wall of the arc groove, and the other side passes through the side wall of the arc groove and is connected to the output shaft of a rotating motor, and an encoder is installed in the rotating motor; A rectangular accommodating groove is dug on one or both sides of the upper surface of the mounting frame corresponding to the arc groove, and a threaded channel communicating with the arc groove is provided at the lower part of the accommodating groove facing the arc groove. A locking screw is built into the accommodating groove, one end of the locking screw is inserted into the threaded channel and a plurality of anti-slip protrusions are distributed on the end portion, and the other end extends outward from the outside of the mounting frame and is connected to a screwing head; the surface of the semi-cylinder corresponding to the accommodating groove position is provided with anti-slip stripes along its arc surface.

[0014] In a second aspect, the present invention provides a method for testing the motion performance of a multifunctional intelligent electric vehicle applied to the above-mentioned testing device, the method comprising a method for testing the vertical impact of an anti-collision beam and the inclined impact of an anti-collision beam; the method for testing the vertical impact of an anti-collision beam comprises: When the anti-collision beam is subjected to a static pressure test, the radial adjustment component adjusts the position of the test pressure head to the test point according to the set anti-collision beam test point, and then the electric telescopic cylinder of the test component pushes the test pressure head down to the anti-collision beam to perform an extrusion test; When the anti-collision beam is subjected to an impact test, the radial adjustment component adjusts the position of the test pressure head to the test point according to the set anti-collision beam test point, and then the rapid limit mechanism of the test component is opened, the magnet block is powered off and demagnetized, and the test pressure head falls quickly to impact the anti-collision beam to complete the impact test; The testing method for the tilt impact condition of the anti-collision beam is: loosen the locking screw, rotate the motor to drive the rotating shaft to drive the semi-cylinder to rotate to a suitable angle, tighten the locking screw to limit the position, and then adjust the radial adjustment component according to the test point position, and then perform static pressure test and impact test.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The multifunctional intelligent electric vehicle motion performance testing device of the present invention can simultaneously perform static pressure tests and impact tests on the anti-collision beam at different positions and angles through the same test pressure head. The overall structural design is simple and reasonable, and it is easy to use while ensuring the durability and service life of each module after multiple tests.

[0016] The device of the present invention can realize the test of the center or side position of the anti-collision beam in the radial direction through the radial adjustment component, and realize the test of different positions of the anti-collision beam in the axial direction through the sliding frame mechanism; the anti-collision beam is tilted by the mounting frame structure of the mounting mechanism, so as to further realize the test of inclined positive pressure.

[0017] The switching method between the static pressure test and the impact test of the device of the present invention is simple. The test pressure head better simulates the actual impact of the anti-collision beam by demagnetizing and dropping. The simulation data is more real, diverse and accurate, and has better practicality.

[0018] The device of the present invention can also automatically and reasonably arrange water cooling according to whether the temperature of the beam changes during the test, and automatically adapt to the use of the cooling device according to the temperature changes of the steel and aluminum materials being tested; the cooling equipment is provided with a circulating water structure, which simplifies the process and is more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of an example of a multifunctional intelligent electric vehicle motion performance testing device according to an embodiment of the present invention; Figure 2 is a structural diagram of a radial adjustment component portion of an embodiment of the present invention; Figure 3 2 is a schematic diagram of the structure of the connection part of the test pressure head according to an embodiment of the present invention; Figure 4 is a schematic structural diagram of a test pressure head according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of a water spray assembly according to an embodiment of the present invention; Figure 6 It is a structural schematic diagram of the installation mechanism position of an embodiment of the present invention; Figure 7 It is a cross-sectional schematic diagram of the installation position of the locking screw according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] 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.

[0022] The present invention provides a multifunctional intelligent electric vehicle motion performance testing device. Figure 1 As shown, it includes a sample mounting platform 1 , mounting mechanisms 2 arranged on both sides of the sample mounting platform 1 , a sliding frame mechanism 3 arranged on both sides of the sample mounting platform 1 , and a detection mechanism 4 arranged on the sliding frame mechanism 3 .

[0023] The bottom of the mounting mechanism 2 is mounted on the sample mounting platform 1 in an axially movable manner, wherein the axially movable manner is to move along the axial direction of the anti-collision beam. Specifically, an axial slide groove 11 is provided on the table surface of the sample mounting platform 1, and a slider member matching the axial slide groove 11 is provided at the bottom of the mounting mechanism 2. The upper part of the mounting mechanism 2 is connected to the two ends of the anti-collision beam sample; the sliding frame mechanism 3 includes an arc-shaped rod 30 with an arc structure provided on both sides of the sample mounting platform 1, and a slide groove 31 is dug on the opposite sides of the two arc-shaped rods 30. A chain conveyor belt that moves back and forth in a cycle is built into the lower part of the slide groove 31, and a driving motor that drives the chain conveyor belt to move is provided at one end of the chain conveyor belt. This chain conveyor belt structure adopts the existing technology.

[0024] Figure 2 As shown, the detection mechanism 4 includes a slider 41 with two ends slidably installed in the slide groove 31 of the arc rod, a cross bar 42 connecting the two sliders 41, a radial adjustment component arranged on the cross bar 42, and a detection component installed below the radial adjustment component; the cross bars 42 on both sides are connected to the slider 41 as connecting rods. The radial adjustment component includes a first motor 43, a screw 44 with one end connected to the first motor 43 and the other end rotatably connected to the cross bar 42, a nut 45 is sleeved on the screw 44, and an encoder is installed in the first motor 43; the encoder can be selected from manufacturers including OMRON. The encoder is a rotary sensor that converts the position and displacement physical quantity of a rotating component into a series of digital pulse signals; the encoder uses a grating and an infrared light source to convert the optical signal into a TTL (HTL) electrical signal through a receiver, and intuitively reflects the rotation angle and rotation position of the motor by analyzing the TTL level frequency and the number of high levels. The encoder is a common means of collecting information about the motor's operating status by mechanically mounting it to the motor. The encoder of the present invention measures and calculates the distance the nut moves by detecting the rotation angle of the drive motor, which can more accurately locate the test point position than other distance detections. The first motor 43, screw 44, nut 45 and other accessories are a lead screw nut assembly, and the position of the detection assembly below the nut assembly is adjusted by the lead screw nut assembly.

[0025] The detection assembly includes a mounting frame 46 and a test pressure head 47 installed below the nut member 45. An electric telescopic cylinder 48 is provided below the mounting frame 46. The electric telescopic cylinder 48 drives its telescopic rod to perform a static pressure test on the test pressure head 47. A connecting block 49 is fixedly connected to the bottom of the electric telescopic cylinder 48. An annular groove 491 is provided at the bottom of the connecting block 49. A magnet block 490 that is powered and magnetized is installed in the annular groove 491. A cavity is provided between the magnet block 490 and the top surface of the annular groove 491, that is, the magnet block 490 does not contact the top surface of the annular groove 491 in the vertical direction. Since the pressure of the test pressure head 47 is relatively large when it is pressed down, a cavity is provided to provide a certain buffer space for the magnet block 490, which is convenient for the installation of the wires and can avoid excessive pressure on the magnet block. In an example, a buffer pad can be placed in the cavity. The two sides of the mounting frame 46 are provided with downwardly extending quick limit mechanisms, and the test pressure head 47 is a semi-cylindrical structure at the bottom and a rectangular parallelepiped structure at the top. Figure 3-4 As shown. The upper surface of the test ram 47 is provided with an annular iron block 470 that matches the magnet block 490, and both sides of the test ram 47 are also provided with assembly grooves 471 that match the quick limit mechanism. The magnet block 490 is a charged and magnetized electromagnetic plate. Under normal conditions, it is energized and magnetized to adsorb the test ram 47; after the magnet block is controlled to be powered off, it is demagnetized and the magnet block performs a drop impact anti-collision beam test.

[0026] To ensure that the test pressure head 47 always maintains a stable connection with the telescopic cylinder under normal conditions, Figure 3-4 As shown, the test pressure head 47 is also connected via a quick limiting mechanism, which is equivalent to a safety bolt of the test pressure head 47. There are two quick limiting mechanisms, which are respectively arranged on the opposite sides of the test pressure head 47. Figure 4 As shown, the quick limit mechanism includes a receiving block 50, a small electric push rod assembly arranged at the bottom of the receiving block 50 and a horizontally arranged side, a mounting hole 53 is arranged at the lower part of the receiving block 50, and the electric push rod assembly includes a cylinder 51 and a piston rod 52 plugged into the cylinder 51, the cylinder 51 is fixed to the outside of the mounting hole 53 of the receiving block 50, and one end of the piston rod 52 is provided with a plug-in block 54 placed in the mounting hole 53, and the front end of the plug-in block 54 extends out of the mounting hole 53 and is inserted into the assembly groove 471. When the electric push rod is in a non-impact test state, the plug-in block 54 at the end of the piston rod 52 is inserted into the assembly groove 471. When an impact test is required, the piston rod 52 is controlled to contract to withdraw the plug-in block 54 from the assembly groove 471; then the test pressure head is immediately demagnetized by the magnet block for impact test.

[0027] The central part of the test pressure head 47 is provided with a through hole 472 which runs through the upper and lower parts. Figure 3As shown, a thin rod 493 is installed at the bottom of the connecting block 49 corresponding to the position of the through hole 472, and the diameter of the thin rod 493 is smaller than the diameter of the through hole; the end of the thin rod 493 is connected to a temperature sensor 494, and the length of the thin rod 493 is not greater than the height of the test pressure head 47. The temperature sensor 494 monitors the temperature change of the anti-collision beam at any time during the static pressure test to enrich the test data. In addition, when the temperature sensor detects that the temperature exceeds the preset threshold, after the static pressure test is completed, the system automatically drives the water cooling equipment to cool down, so as to reduce the waiting time in the middle of multiple tests.

[0028] In a specific example, the annular groove 491 is a rectangular ring groove structure, and the magnet block 490 is a rectangular ring structure that matches the shape of the annular groove 491 .

[0029] In another example, a water cooling device is installed on one side of the sample mounting platform 1. Figure 1 As shown, a shallow groove 19 is provided on the surface of the sample mounting table 1 corresponding to the inner side of the two axial slide grooves 11, and the water cooling device includes a water-cooled slide assembly and a water spray assembly. The water-cooled slide assembly includes a screw-structured slide rail 60 axially arranged on one side of the shallow groove 19, a nut mounting seat 61 slidably sleeved on the slide rail 60, and a rotating motor 62 arranged at one end of the slide rail 60. The slide rail 60 is a threaded rod, and the other end of the slide rail 60 is mounted on the side of the shallow groove 19 through a base, and the slide rail 60 can be rotatably mounted on the base, so that under the drive of the rotating motor 62, the slide rail rotates to drive the nut mounting seat 61 to move, thereby adjusting to the test position for necessary water cooling operations. Figure 5 As shown, the water spray assembly includes a connection seat 63 above the mounting nut mounting seat 61, a water pipe connection 64 installed above the mounting seat 63, and an adapter 66 rotatably sleeved on the top of the water pipe connection 64; the lower part of the water pipe connection 64 is provided with an interface, the interface is connected to a hose 65, the other end of the hose 65 is connected to a water tank 68 placed at the bottom of the sample mounting table 1, and a water pump is installed at the interface between the hose 65 and the water tank 68. An electromagnetic valve 80 is installed in the middle of the water pipe connection 64, and of course a manual valve (not shown in the figure) can also be installed according to actual conditions. The water outlet of the adapter 66 is arranged on the upper side wall, and is connected to a spray pipe 67 through a water pipe joint; a plurality of spray heads 677 are evenly distributed at the bottom of the spray pipe 67. A turbine 83 is fixedly sleeved on the lower outer wall of the water pipe connecting pipe 64; a worm gear motor 81 is installed on the upper side wall of the water pipe connecting pipe 64, and the output shaft of the worm gear motor 81 is connected to a worm 82 meshing with the turbine 83; the adapter 66 is driven to rotate by this mechanism, and the adapter 66 rotates when the water cooling equipment is in use, and the spray pipe 67 connected to the outer end of the adapter 66 is turned to the position where the anti-collision beam needs to be cooled for spraying and cooling.

[0030] Figure 1 As shown, a water outlet 72 is installed at the bottom of the shallow groove 19, and the water outlet 72 is connected to a cooling groove 71 arranged on the side of the water tank 68 through a water outlet pipe. The cooling groove 71 is connected to the water tank 68 through a connecting pipe 77. A filter screen and a solenoid valve are provided on the connecting pipe 77. A temperature sensor can also be arranged in the water tank 68. When the water temperature drops to a suitable temperature, the system drives the solenoid valve to open, and the water in the cooling groove 71 flows into the water tank 68, so as to realize the recycling of cooling water.

[0031] When the anti-collision beam is hit at an inclined angle, the impact angle is generally not very large. Based on this, in an example of further improvement of the present invention, Figure 6-7 As shown, the mounting mechanism 2 includes a sliding base plate 21 slidably connected to the surface of the sample mounting platform 1 and a mounting frame 22 fixedly connected to the sliding base plate 21, an arc groove 23 is provided in the middle of the mounting frame 22, a semi-cylinder 24 is provided in the arc groove 23, a mounting portion 25 is extended upward from the middle of the upper surface of the semi-cylinder 24, and the upper surface of the mounting portion 25 is a mounting surface for mounting an energy absorption box; the mounting surface is directly fixed to the anti-collision beam (when only the anti-collision beam is tested) or the energy absorption box under the anti-collision beam (when the anti-collision beam and the energy absorption box are tested at the same time) by screws. A rotating shaft hole is dug at the center of the semi-cylinder 24, and a rotating shaft 26 is fixed to the rotating shaft hole. One side of the rotating shaft 26 is rotatably connected to the side wall of the arc groove 23, and the other side passes through the side wall of the arc groove 23 and is connected to the output shaft of a rotating motor 27. An encoder is installed in the rotating motor 27; the rotating shaft is driven by the rotating motor to rotate the semi-cylinder, and the encoder controls the size of the rotation angle, thereby realizing the tilt setting of the anti-collision beam. When in use, the test point is relocated according to the tilt position of the anti-collision beam, and then the position of the test component is adjusted according to the test point. The rotation angle of the device is within 45° clockwise or counterclockwise, providing more ways to test the anti-collision beam.

[0032] A rectangular accommodating groove 28 is dug on one or both sides (one side is shown in the figure, and both sides can be set according to actual conditions) of the upper surface of the mounting frame 25 corresponding to the arc groove, and a threaded channel 29 communicating with the arc groove 23 is provided at the lower part of the accommodating groove 28 facing the arc groove. A locking screw 280 is built into the accommodating groove 28, and one end of the locking screw 280 is inserted into the threaded channel 29 and a plurality of anti-slip protrusions are distributed on the end portion, and the other end extends outward from the outside of the mounting frame 25 and is connected to a screwing head 290; the surface of the semi-cylinder 24 corresponding to the position of the accommodating groove 28 is provided with anti-slip stripes along its arc surface.

[0033] The second aspect of the present invention discloses a method for testing the motion performance of a multifunctional intelligent electric car using a testing device, the method comprising a method for testing a vertical impact of an anti-collision beam and a method for testing an inclined impact of an anti-collision beam; the method for testing a vertical impact of an anti-collision beam comprises: When the anti-collision beam is subjected to a static pressure test, the radial adjustment component adjusts the position of the test pressure head to the test point according to the set anti-collision beam test point, and then the electric telescopic cylinder of the test component pushes the test pressure head down to the anti-collision beam to perform an extrusion test; When the anti-collision beam is subjected to an impact test, the radial adjustment component adjusts the position of the test pressure head to the test point according to the set anti-collision beam test point, and then the rapid limit mechanism of the test component is opened, the magnet block is powered off and demagnetized, and the test pressure head falls quickly to impact the anti-collision beam to complete the impact test; The testing method for the tilt impact condition of the anti-collision beam is: loosen the locking screw, rotate the motor to drive the rotating shaft to drive the semi-cylinder to rotate to a suitable angle, tighten the locking screw to limit the position, and then adjust the radial adjustment component according to the test point position, and then perform static pressure test and impact test.

[0034] In addition, the third aspect of the test also includes that during the static pressure test, the temperature sensor of the test pressure head monitors the temperature change of the anti-collision beam during the downward pressure process of the test pressure head. When the test temperature exceeds the set threshold, after the test pressure head leaves the anti-collision beam, the water-cooled sliding assembly moves to the test point position, drives the adapter to rotate, and the spray pipe rotates to the top of the anti-collision beam at the test point position, and opens the water pipe solenoid valve to spray and cool the water. After cooling, the water flows from the water outlet at the bottom of the shallow trough below to the cooling tank for cooling and recovery.

[0035] The present application also provides a computer program product. When the computer program product is run on a computer, the computer is enabled to execute the above-mentioned related steps to implement a vehicle simulation test method provided in the above-mentioned embodiment.

[0036] Through the description of the above implementation methods, technical personnel in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0037] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0038] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multifunctional intelligent electric car motion performance testing device, comprising a sample mounting platform, mounting mechanisms arranged on both sides of the sample mounting platform, a sliding frame mechanism arranged on both sides of the sample mounting platform, and a detection mechanism arranged on the sliding frame mechanism; It is characterized in that The bottom of the mounting mechanism is mounted on the sample mounting platform in an axially movable manner, and the upper part of the mounting mechanism is connected to the two ends of the anti-collision beam sample; the sliding frame mechanism includes arc-shaped rods arranged on both sides of the sample mounting platform, and the two arc-shaped rods are provided with sliding grooves on the opposite sides; The detection mechanism includes a slider with two ends slidably installed in the slide groove of the arc rod, a cross bar connecting the two sliders, a radial adjustment component arranged on the cross bar, and a detection component installed below the radial adjustment component; the cross bars on both sides are connected to the slider as connecting rods; the radial adjustment component includes a first motor, a screw rod with one end connected to the first motor and the other end rotatably connected to the cross bar, a nut member is sleeved on the screw rod, and an encoder is installed in the first motor; The detection assembly includes a mounting frame and a test pressure head installed below the nut member, an electric telescopic cylinder is provided below the mounting frame, a connecting block is fixedly connected to the bottom of the electric telescopic cylinder, an annular groove is provided at the bottom of the connecting block, a magnet block that is powered and magnetized is installed in the annular groove, downwardly extending quick limit mechanisms are provided on both sides of the mounting frame, an annular iron block that cooperates with the magnet block is provided on the upper surface of the test pressure head, and assembly grooves that cooperate with the quick limit mechanisms are also provided on both sides of the test pressure head.

2. The multifunctional intelligent electric vehicle motion performance testing device according to claim 1, characterized in that: A cavity is provided between the magnet block and the top surface of the annular groove.

3. The multifunctional intelligent electric vehicle motion performance testing device according to claim 1, characterized in that: There are two quick limit mechanisms, which are respectively arranged on opposite sides of the test pressure head; the quick limit mechanism includes a receiving block, a small electric push rod assembly arranged at the bottom of the receiving block and installed horizontally on the side, the lower part of the receiving block is provided with a mounting hole, the electric push rod assembly includes a cylinder barrel and a piston rod plugged into the cylinder barrel, the cylinder barrel is fixed to the outside of the mounting hole of the receiving block, one end of the piston rod is provided with a plug-in block placed in the mounting hole, and the front end of the plug-in block extends out of the mounting hole and is inserted into the assembly groove.

4. The multifunctional intelligent electric vehicle motion performance testing device according to claim 2, characterized in that: A through hole running through the upper and lower parts is provided in the central part of the test pressure head, and a thin rod is installed at the bottom of the connecting block corresponding to the position of the through hole, and the diameter of the thin rod is smaller than the diameter of the through hole; a temperature sensor is connected to the end of the thin rod, and the length of the thin rod is not greater than the height of the test pressure head.

5. The multifunctional intelligent electric vehicle motion performance testing device according to claim 1, characterized in that: The annular groove is a rectangular ring groove structure, and the magnet block is a rectangular ring structure adapted to the shape of the annular groove.

6. The multifunctional intelligent electric vehicle motion performance testing device according to claim 1, characterized in that: A water cooling device is installed on one side of the sample mounting table, and a shallow groove is provided on the inner side of the two axial slide grooves corresponding to the surface of the sample mounting table. The water cooling device includes a water-cooled sliding assembly and a water spray assembly. The water-cooled sliding assembly includes a slide rail with a screw structure axially arranged on one side of the shallow groove, a nut mounting seat slidably sleeved on the slide rail, and a rotating motor arranged at one end of the slide rail, and the other end of the slide rail is installed on the side of the shallow groove through a base and the slide rail can be rotatably mounted on the base; the water spray assembly includes a connecting seat above the mounting nut mounting seat, a water pipe connecting pipe installed above the mounting seat, and a converter rotatably sleeved on the top of the water pipe connecting pipe; an interface is provided at the lower part of the water pipe connecting pipe, and the interface is connected to a hose, and the other end of the hose is connected to a water tank placed at the bottom of the sample mounting table, and a water pump is installed at the interface between the hose and the water tank.

7. The multifunctional intelligent electric vehicle motion performance testing device according to claim 6, characterized in that: An electromagnetic valve is installed in the middle of the water pipe connection, the water outlet of the adapter is arranged on the upper side wall, and a spray pipe is connected through a water pipe joint; a plurality of spray heads are evenly distributed at the bottom of the spray pipe; A turbine is fixedly sleeved on the lower outer wall of the water pipe connecting pipe; a worm gear motor is installed on the upper side wall of the water pipe connecting pipe, and the output shaft of the worm gear motor is connected to a worm meshing with the turbine.

8. The multifunctional intelligent electric vehicle motion performance testing device according to claim 6, characterized in that: A water outlet is installed at the bottom of the shallow trough, and the water outlet is connected to a cooling trough arranged on the side of the water tank through a water outlet pipe. The cooling trough is connected to the water tank through a connecting pipe, and a filter screen and a solenoid valve are arranged on the connecting pipe. A temperature sensor is also arranged in the water tank.

9. The multifunctional intelligent electric vehicle motion performance testing device according to claim 1, characterized in that: The mounting mechanism comprises a sliding base plate slidably connected to the surface of the sample mounting table and a mounting frame fixedly connected to the sliding base plate, an arc-shaped groove is provided in the middle of the mounting frame, a semi-cylinder is provided in the arc-shaped groove, a mounting portion is extended upward from the middle of the upper surface of the semi-cylinder, and the upper surface of the mounting portion is a mounting surface for mounting the energy absorption box; a rotating shaft hole is dug at the center of the semi-cylinder, a rotating shaft is fixedly connected to the rotating shaft hole, one side of the rotating shaft is rotatably connected to the side wall of the arc-shaped groove, and the other side passes through the side wall of the arc-shaped groove and is connected to the output shaft of a rotating motor, and an encoder is installed in the rotating motor; A rectangular accommodating groove is dug on one or both sides of the upper surface of the mounting frame corresponding to the arc groove, and a threaded channel communicating with the arc groove is provided at the lower part of the accommodating groove facing the arc groove. A locking screw is built into the accommodating groove, one end of the locking screw is inserted into the threaded channel and a plurality of anti-slip protrusions are distributed on the end portion, and the other end extends outward from the outside of the mounting frame and is connected to a screwing head; the surface of the semi-cylinder corresponding to the accommodating groove position is provided with anti-slip stripes along its arc surface.

10. A test method for the multifunctional intelligent electric vehicle motion performance test device according to claim 9, the method comprising a test method for a vertical impact of an anti-collision beam and a test method for an inclined impact of an anti-collision beam; the test method for a vertical impact of an anti-collision beam comprises: When the anti-collision beam is subjected to a static pressure test, the radial adjustment component adjusts the position of the test pressure head to the test point according to the set anti-collision beam test point, and then the electric telescopic cylinder of the test component pushes the test pressure head down to the anti-collision beam to perform an extrusion test; When the anti-collision beam is subjected to an impact test, the radial adjustment component adjusts the position of the test pressure head to the test point according to the set anti-collision beam test point, and then the rapid limit mechanism of the test component is opened, the magnet block is powered off and demagnetized, and the test pressure head falls quickly to impact the anti-collision beam to complete the impact test; The testing method for the tilt impact condition of the anti-collision beam is: loosen the locking screw, rotate the motor to drive the rotating shaft to drive the semi-cylinder to rotate to a suitable angle, tighten the locking screw to limit the position, and then adjust the radial adjustment component according to the test point position, and then perform static pressure test and impact test.

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