CN205175701U - White automobile body of car movable trolley for bump test - Google Patents

Abstract

The utility model claims protection for a mobile trolley for automobile body-in-white collision test, which belongs to the technical field of automobile collision test. It includes the frame of the mobile trolley, the installation plate, the tires of the mobile trolley and the loading counterweight plate. On the frame of the mobile trolley, a traction hook is installed at the front end of the frame of the mobile trolley, and upper and lower U-shaped installation grooves are arranged on the axle installation position adjustment plate of the mobile trolley to adjust the installation height of the tire. Car body, carry out frontal collision and side impact tests of body-in-white, with simple device, strong operability, low price, good repeatability, and stable collision impact force, which can obtain the frontal and side impact performance of body-in-white.

Description

A mobile trolley for automobile body-in-white crash test

technical field

The utility model relates to the technical field of collision test of automobile body-in-white, in particular to a kind of collision test with strong operability, good repeatability, stable collision impact force, high accuracy of test data, which can obtain the frontal and side collision performance of automobile body-in-white Mobile trolley for automobile body-in-white crash test.

Background technique

In order to reduce the harm caused by automobile collision accidents to human beings, my country has successively formulated GB11551-2014 "Occupant Protection in Frontal Collision of Automobiles" on frontal collision and side collision (replacing the original GB11551-2003 "Occupant Protection in Frontal Collision of Passenger Cars") And GB20071-2006 "Passenger Car Side Collision Occupant Protection" standard, evaluate the vehicle's collision safety performance in the vehicle state. However, the development cycle of the whole vehicle is long, the development cost is high, and the test cost of the collision of the whole vehicle is also high, which has certain restrictions on the rapid development of new products by automobile companies.

In the collision, the body-in-white of the car absorbs most of the collision energy, which plays a decisive role in the safety of the car. In order to make the car body have good energy absorption characteristics, the basic idea of car safety design is to effectively absorb the collision energy in the deformable area of the car body, disperse and transmit the collision force, and ensure the effective living space of the occupants.

As the requirements for energy saving and emission reduction become more and more stringent, vehicle manufacturers often use new materials and new processes to reduce the weight of the body-in-white and realize the weight reduction of the body-in-white, and the corresponding complete vehicles generally require multiple rounds of optimization and testing verification to complete. In comparison, the development cycle of the body-in-white is shorter and the cost is low. Compared with the whole vehicle, the cost of the frontal and side impact tests of the body-in-white is also greatly reduced. In the early stage, it is possible to carry out frontal or side collisions to obtain collision performance, and then optimize and improve them in a timely manner, without having to wait until the vehicle collision verification test stage to find problems, which will greatly reduce the development cycle and R&D costs of automotive products.

The existing crash test technology can use the rail slide table or the trolley in GB20071-2006 "Occupant Protection in Side Collision of Passenger Cars" to load the car body-in-white, but the rail slide table has too many constraints on the collision, which is different from the actual test conditions. The difference is large, the impact damage to the track is relatively large in the test, and only a frontal collision with a low speed can be carried out, and the side collision test cannot be completed; the weight of the trolley in GB20071-2006 "Occupant Protection in Side Collision of Passenger Cars" is relatively heavy, and only It can carry out frontal collision at low speed, and the installation is high and cannot be adjusted, so it cannot complete the side impact test of the body-in-white.

A literature search of existing related technologies found that CN202008434U discloses "a frontal vehicle impact test device", which mainly introduces a vehicle frontal impact test device that accurately simulates the actual frontal collision process of a vehicle, and is used for the development of a restraint system. CN103512721A discloses an "adjustable crash test trolley", which mainly introduces an adjustable crash test trolley for the development of restraint systems. CN2703686Y discloses a "automobile frontal trolley collision test device", which is mainly used to simulate the dynamic process of any real vehicle collision mode during the collision process, and is suitable for the development of restraint systems. CN204128771U discloses "a kind of multifunctional crash test trolley", which is mainly used for the side regulation test of the whole vehicle, for installing honeycomb aluminum and carrying out collision impact on the whole vehicle; CN203101015U discloses "a new type of front longitudinal beam impact test "Device", which mainly introduces the test of the longitudinal beam of the vehicle using the side impact test platform of the whole vehicle.

To sum up, most of the existing crash test rigs are test devices for the development of frontal restraint systems, or test rigs for vehicle side collisions. The crash performance test of the body-in-white cannot be carried out due to the limitation.

Contents of the invention

Aiming at the deficiencies of the existing technology, a method is proposed to realize the evaluation of the frontal and side impact performance of the body in white. The frontal and side impact performance of the body in white can fill the blank of the body in white crash test technology. Technical scheme of the present invention is as follows:

A mobile trolley for automobile body-in-white crash test, comprising a mobile trolley frame, a mounting plate, a mobile trolley tire for carrying the mobile trolley and a loading counterweight plate, the mounting plate is fixed on the On the frame of the mobile trolley, the loading counterweight plate is mounted on the frame of the mobile trolley through the fixing bolts of the loading counterweight plate, the front end of the frame of the mobile trolley is equipped with a traction hook, and the tires of the mobile trolley are mounted on the axle through the tire It is connected to the axle installation position adjustment plate on the trolley frame with the tire axle installation plate, and the axle installation position adjustment plate is provided with up and down U-shaped installation grooves for adjusting the tire installation height.

Further, the tires of the mobile trolley are connected with the bearings of the tire installation shafts of the mobile trolley with an interference fit, and the tire installation shafts of the mobile trolley are connected with the tire axle installation plates.

Further, the frame of the mobile trolley is provided with an axle installation position adjustment plate, and the tire axle installation position adjustment plate is provided with upper and lower U-shaped installation grooves, and the tire axle installation plate is fixed on the axle by using tire axle installation plate bolts. Install on the U-shaped installation groove of the position adjustment plate.

Further, the frame of the mobile trolley is welded by light-weight thin-walled steel pipes with a hollow square cross-section, and is symmetrical from left to right.

Further, the weight of the mobile trolley is 500±5kg, and the frame of the mobile trolley, the tire mounting shaft of the mobile trolley, and the tires of the mobile trolley will not be deformed after collision.

Further, the test bench can be used for the frontal impact test of the body-in-white. The body-in-white is fixed on the mobile trolley through the installation plate, and the position of the installation plate is adjusted so that the longitudinal center plane of the body-in-white coincides with the longitudinal center plane of the trolley. , and the main safety components of the front end of the body-in-white are located in front of the front end of the trolley. In the non-body-in-white installation area at the rear end of the mobile trolley, a loading counterweight plate is arranged, and an external traction device is used to connect the tow hook of the mobile trolley to drive the mobile trolley. After the body-in-white reaches the preset collision speed, the front face hits the rigid wall vertically. (add content)

Further, the test bench can be used for the side impact test of the body-in-white, the body-in-white is fixed on the mobile trolley through the installation plate, and the position of the installation plate is adjusted so that the longitudinal center plane of the body-in-white coincides with the longitudinal center plane of the trolley , and the point R in the vehicle design of the body-in-white is in the same transverse plane as the midpoint between the front and rear wheels of the mobile trolley, and the loading counterweight plate is arranged in the non-body-in-white installation area at both ends of the mobile trolley to adjust the mobile trolley position, so that the longitudinal center plane of the body-in-white is perpendicular to the longitudinal center plane of the mobile deformation barrier, and the midpoint between the front and rear wheels of the mobile trolley is located on the longitudinal center plane of the mobile deformation barrier, by adjusting the front and rear tires of the mobile trolley The installation height of the body-in-white is to make the upper edge of the threshold of the body-in-white reach the preset height from the ground, and the external traction device is used to drive and move the deformed barrier to the preset collision speed, and hit the body-in-white vertically.

Further, the body-in-white does not have four doors, two covers, and front and rear windshields, or the body-in-white is equipped with four doors, two covers, and front and rear windshields.

Further, the weight range of the loaded weight plate is 0-800kg.

Advantage of the utility model and beneficial effect are as follows:

The utility model proposes a mobile trolley for automobile body-in-white collision test, which can realize the evaluation of the frontal and side collision performance of the body-in-white by adjusting the position of the plate installed on the frame of the trolley, the height of the tire and the weight of the counterweight plate, and the device is simple It has strong operability, low price, good repeatability, stable impact force, and high accuracy of test data. It can obtain the frontal and side impact performance of body-in-white, and can fill the blank of body-in-white crash test technology.

Description of drawings

Fig. 1 is a structural diagram of a preferred embodiment of the utility model.

Fig. 2 is the structural representation 2 diagrams of the present utility model.

Fig. 3 is a schematic diagram of frontal collision installation of the body-in-white of the present invention.

Fig. 4 is a schematic diagram of the side collision installation of the body-in-white of the present invention.

Fig. 5 is a schematic diagram of floor installation of the body-in-white of the present invention.

In the figure: 1. Mobile trolley frame; 2. Frame mounting bolt holes; 3. Loading the counterweight plate; 4. Loading the fixing bolts of the counterweight plate; 5. Installing the plate; 6. Installing the plate mounting bolts; Screw rod; 8, mobile car tire installation shaft; 9, mobile trolley tire; 10, tire axle installation plate; 11, tire axle installation plate bolt; 12, tire axle installation position adjustment plate; 13, tire axle installation position adjustment plate U Type installation groove; 14, traction tow hook; 15, body-in-white; 16, floor of body-in-white; 17, mobile deformation barrier.

detailed description

Below in conjunction with accompanying drawing, the present invention will be further described:

The utility model will be further described below in conjunction with the specific embodiments of the body-in-white collision test and the accompanying drawings.

Embodiment 1: The mobile trolley is used for the frontal collision test installation of the body-in-white. Test the body-in-white without four doors, two covers and front and rear windshield glass. According to the floor size of the body-in-white and the positions of the rear section of the front longitudinal beam, floor longitudinal beam and seat beam, a total of 2 places available for installation on the floor of the body-in-white are determined. . According to the location of the installation space, two body-in-white installation panels are arranged in parallel along the lateral direction of the vehicle under the body-in-white floor. Adjust the position of the mounting plate so that there is enough space on the floor of the body-in-white to connect with the mounting plate. On the floor of the body-in-white, corresponding to the positions of the mounting holes of the mounting plate, the mounting holes of the body-in-white are opened with an impact drill, and the body-in-white and the mounting plate are connected and fixed with the mounting plate mounting screws. There are 16 mounting plate mounting screws in total. Place the connected body-in-white and mounting plate on the mobile trolley, move the position of the mounting plate, and adjust until the front end of the body-in-white mounting plate is 150 mm from the front end of the test bench, so that the main safety components of the front end of the body-in-white are located in front of the front end of the trolley , while ensuring that the longitudinal center plane of the body-in-white coincides with the longitudinal center plane of the mobile trolley. At both ends of the installation plate, use the installation plate installation bolts to fix the installation plate and the mobile trolley, and there are 8 installation bolts in total.

In the non-body-in-white installation area at the rear end of the trolley, the loading counterweight plate is arranged in parallel along the transverse direction of the trolley, and the total weight of the loading counterweight plate is 300kg. At both ends of the loading counterweight plate, use the loading counterweight plate mounting bolts to connect the loading counterweight plate to the mobile trolley, and there are a total of 4 loading counterweight plate mounting bolts.

Adjust the position of the mobile trolley so that the straight-line driving direction of the mobile trolley forms an angle of 0° with the normal line of the front surface of the rigid wall. Use an external traction device to connect the towing hook of the mobile trolley, drive the mobile trolley, drive the body-in-white to reach the preset collision speed of 50km/h, release the traction device, hit the rigid wall, and complete the frontal collision of the body-in-white.

Embodiment 2: The mobile trolley is used for the installation of the body-in-white side impact test. The body-in-white is equipped with front and rear doors, engine cover and trunk lid. According to the measurement of the floor size of the body-in-white and the positions of the floor longitudinal beams and reinforcing beams, a total of 3 places available for installation on the floor of the body-in-white are calculated. According to the location of the installation space, three installation panels are arranged in parallel along the lateral direction of the vehicle under the floor of the body-in-white. Adjust the position of the mounting plate so that there is enough space on the floor of the body-in-white to connect with the mounting plate. On the floor of the body-in-white, corresponding to the positions of the mounting holes of the mounting plate, drill the mounting holes of the body-in-white, and fix the body-in-white on the mounting plate with the mounting plate mounting screws. The number of mounting plate mounting screws is 24 in total. Place the connected body-in-white and the installation plate on the mobile trolley, adjust the position of the installation plate on the mobile trolley, so that the longitudinal center plane of the body-in-white coincides with the longitudinal center plane of the mobile trolley, and the design of the body-in-white The R point and the midpoint between the front and rear wheels of the mobile trolley are in the same transverse plane. At the positions of the mounting holes at both ends of the mounting plate, the mounting plate is fixed on the mobile trolley by installing the plate mounting bolts to complete the installation and fixing of the body-in-white. The number of mounting bolts to install the plate is 12.

In the non-body-in-white installation area at both ends of the mobile trolley, the loading counterweight plate is arranged in parallel along the lateral direction of the mobile trolley. The total weight of the loading counterweight plate is 400kg. At the positions of the mounting holes at both ends of the loading counterweight plate, the mounting bolts of the loading counterweight plate are used. , fix the counterweight plate and the mobile trolley, and load a total of 36 counterweight plate mounting bolts.

The mobile trolley loaded with the body-in-white and the loaded counterweight plate is freely placed at the preset collision position, so that the longitudinal center plane of the body-in-white is perpendicular to the longitudinal center plane of the mobile deformation barrier, and the distance between the front and rear wheels of the mobile trolley is The midpoint is located on the longitudinal center plane of the mobile deformable barrier. By adjusting the installation height of the front and rear tires of the mobile trolley, the upper edge of the sill of the body-in-white can reach the preset height from the ground of 278mm.

Use the external traction device to drive and move the deformable barrier to the preset collision speed of 50km/h, release the traction device, hit the body-in-white, and complete the side collision on the body-in-white.

As shown in Figures 1, 2, 3, 4, and 5, a mobile trolley for a body-in-white collision test includes 1. a mobile trolley frame; 2. frame mounting bolt holes; 3. a loading counterweight plate; Heavy board fixing bolt; 5. Installing the flat plate; 6. Installing the flat plate mounting bolt; 7. Installing the flat plate mounting screw; 8. Mobile vehicle tire mounting shaft; 9. Mobile trolley tire; 10. Tire axle mounting plate; 11. Tire axle Mounting plate bolts; 12. Tire axle installation position adjustment plate; 13. U-shaped installation groove of tire axle installation position adjustment plate; 14. Traction hook; 15. Body in white; 16. Body in white floor; 17. Mobile deformation barrier. Mounting holes are provided on the mounting plate 5, the mobile trolley frame 1 and the mounting plate 5 are connected by the mounting plate mounting bolts 6, the mobile trolley frame 1 and the loading counterweight plate 3 are connected by the loading counterweight plate fixing bolts 4, and the mounting plate 5 and body-in-white 15 are connected by installing flat mounting screws 7, the number of installing flat plates 5 is 2-4, the number of installing flat mounting screws 7 is 16-24, and the number of installing flat mounting bolts 6 is 8-16 , the number of loading counterweight plates 3 is 2-4, the counterweight range is 200-800kg, the number of loading counterweight plate fixing bolts 4 is 4-8, the weight of the mobile trolley is 500 ± 5kg, and the mobile trolley The installation height of the tires is adjustable, which can keep the position of the body-in-white and the barrier in the side collision test consistent with that of the whole vehicle; during the collision, the frame 1, the tire installation shaft 8 of the mobile vehicle, and the tire 9 of the mobile trolley will not occur out of shape.

Preferably, the utility model is: a mobile trolley for automobile body-in-white collision test, comprising a mobile trolley frame 1, a mounting plate 5, a mobile trolley tire 9 for carrying the mobile trolley and a loading counterweight plate 3, The installation plate 5 is installed and fixed on the mobile trolley frame 1 by installing the plate mounting bolts 6, and the loading counterweight plate 3 is installed on the mobile trolley frame 1 by loading the counterweight plate fixing bolts 4, and the mobile trolley The front end of the frame 1 is equipped with a traction hook 14, and the mobile trolley tire 9 is connected to the axle installation position adjustment plate 12 on the trolley frame 1 through the tire installation shaft 8 and the tire axle installation plate 10, and the axle installation position adjustment plate 12 Up and down U-shaped mounting grooves 13 are arranged on the top for adjusting the mounting height of the tire 9 .

Preferably, the tires 9 of the mobile trolley are connected with the bearings of the tire installation shaft 8 of the mobile trolley with interference fit, and the tire installation shaft 8 of the mobile trolley is connected with the tire axle installation plate 10 .

Preferably, the frame 1 of the mobile trolley is provided with an axle installation position adjustment plate 12, and the tire axle installation position adjustment plate 12 is provided with upper and lower U-shaped installation grooves 13, and the tire axle installation plate bolts 11 are used to install the tire axle. The board 10 is installed and fixed on the U-shaped installation groove 13 of the axle installation position adjustment board 12 .

Preferably, the frame 1 of the mobile trolley is welded by light-weight thin-walled steel pipes with a hollow square cross-section, and is bilaterally symmetrical.

Preferably, the total weight of the mobile trolley is 500±5kg, and the mobile trolley frame 1, the mobile trolley tire mounting shaft 8, and the mobile trolley tire 9 will not be deformed after collision.

Preferably, the test bench can be used for the frontal impact test of the body-in-white. The body-in-white 15 is fixed on the mobile trolley through the installation plate 5, and the position of the installation plate 5 is adjusted so that the longitudinal center plane of the body-in-white 15 is aligned with the center plane of the body-in-white. The longitudinal center planes coincide, and the main safety components of the front end of the body-in-white are located in front of the front end of the trolley. In the non-body-in-white installation area at the rear end of the mobile trolley, a loading counterweight plate 3 is arranged, and an external traction device is used to connect the tow hook 14 of the mobile trolley. Drive the mobile trolley to drive the body-in-white 15 to reach the preset collision speed, and hit the rigid wall vertically frontally.

Preferably, the test bench can be used for the side impact test of the body-in-white, the body-in-white 15 is fixed on the mobile trolley through the installation plate 5, and the position of the installation plate 5 is adjusted so that the longitudinal center plane of the body-in-white 15 is in line with the center plane of the body-in-white. The longitudinal center plane coincides, and the R point in the design of the body-in-white vehicle is in the same transverse plane as the midpoint between the front and rear wheels of the mobile trolley, and the loading counterweight plate 3 is arranged in the non-body-in-white installation area at both ends of the mobile trolley , adjust the position of the mobile trolley so that the longitudinal center plane of the body-in-white 15 is perpendicular to the longitudinal center plane of the mobile deformation barrier, and make the midpoint between the front and rear wheels of the mobile trolley be located on the longitudinal center plane of the mobile deformation barrier. Adjust the installation height of the front and rear tires of the mobile trolley so that the upper edge of the sill of the body-in-white 15 reaches a preset height from the ground, use an external traction device to drive the mobile deformation barrier to a preset collision speed, and hit the body-in-white vertically.

Preferably, the body-in-white 15 does not have four doors and two covers and front and rear windshields or the body-in-white is equipped with four doors and two covers and front and rear windshields.

Preferably, the weight range of the loaded weight plate is 0-800kg.

The above embodiments should be understood as only for illustrating the utility model but not for limiting the protection scope of the utility model. After reading the content of the utility model, the skilled person can make various changes or modifications to the utility model, and these equivalent changes and modifications also fall within the scope defined by the claims of the utility model.

Claims (9)

1. an automobile body-in-white impact test is with mobile trolley used, comprise mobile trolley used framework (1), install dull and stereotyped (5), for carrying mobile trolley used mobile trolley used tire (9) and loading Weight plate (3), described installation dull and stereotyped (5) is fixed on mobile trolley used framework (1) by installing dull and stereotyped erection bolt (6), described loading Weight plate (3) is arranged on mobile trolley used framework (1) by loading Weight plate set bolt (4), described mobile trolley used framework (1) front end is provided with traction towing hook (14), described mobile trolley used tire (9) is connected on axletree installation site adjustable plate (12) on chassis framework (1) by tire installation shaft (8) and tire axletree installing plate (10), axletree installation site adjustable plate (12) is provided with upper and lower U-shaped mounting groove (13), for regulating tire (9) setting height(from bottom).

2. automobile body-in-white impact test according to claim 1 is with mobile trolley used, it is characterized in that: described mobile trolley used tire (9) is connected with the bearing interference fit of mobile trolley used tire installation shaft (8), mobile trolley used tire installation shaft (8) is connected with tire axletree installing plate (10).

3. automobile body-in-white impact test according to claim 1 is with mobile trolley used, it is characterized in that: described mobile trolley used framework (1) is provided with tire axletree installation site adjustable plate (12), tire axletree installation site adjustable plate (12) is provided with upper and lower U-shaped mounting groove (13), adopt tire axletree installing plate bolt (11), tire axletree installing plate (10) is fixed on the U-shaped mounting groove (13) of tire axletree installation site adjustable plate (12).

4. automobile body-in-white impact test according to claim 1 is with mobile trolley used, it is characterized in that: described mobile trolley used framework (1) is that square hollow cross section light thin wall steel-pipe welding forms by cross section, and symmetrical.

5. automobile body-in-white impact test according to claim 1 is with mobile trolley used, it is characterized in that: described mobile trolley used general assembly (TW) is 500 native 5kg, mobile trolley used framework (1), locomotive tire installation shaft (8), mobile trolley used tire (9) collision rift can not deform.

6. automobile body-in-white impact test according to claim 1 is with mobile trolley used, it is characterized in that: the described mobile trolley used frontal collision test that can be used for body in white, body in white (15) by install dull and stereotyped (5) be fixed on mobile trolley used on, the position of dull and stereotyped (5) is installed in adjustment, the longitudinal center face of body in white (15) is overlapped with the longitudinal center face of chassis, and before body in white front end main security parts are positioned at chassis front end face, the non-body in white installation region in mobile trolley used rear end, arrange and load Weight plate (3), outside draw-gear is adopted to connect mobile trolley used towing hook (14), drive mobile trolley used, after driving body in white (15) to reach default impact velocity, front vertical clashes into rigid wall.

7. automobile body-in-white impact test according to claim 1 is with mobile trolley used, it is characterized in that: the described mobile trolley used side collision test that can be used for body in white, body in white (15) by install dull and stereotyped (5) be fixed on mobile trolley used on, the position of dull and stereotyped (5) is installed in adjustment, the longitudinal center face of body in white (15) is overlapped with the longitudinal center face of chassis, and the position of collision R point in body in white entire vehicle design and the mid point between mobile trolley used front and back wheel are in same transverse plane, the non-body in white installation region at mobile trolley used two ends, arrange and load Weight plate (3), adjust mobile trolley used position, make the longitudinal center face of body in white (15) vertical with the longitudinal center face of Mobile deformable barrier, and make the mid point between mobile trolley used front and back wheel be positioned on the longitudinal center face of Mobile deformable barrier, by regulating the setting height(from bottom) of mobile trolley used front and back tire, make on body in white (15) threshold along reaching default terrain clearance, outside draw-gear is adopted to drive Mobile deformable barrier to the impact velocity preset, vertical direction toward impact body in white.

8. automobile body-in-white impact test according to claim 1 is with mobile trolley used, it is characterized in that: described body in white (15) is not with four-door two-lid and front-rear windshield glass or body in white that four-door two-lid and front-rear windshield glass are housed.

9. automobile body-in-white impact test according to claim 1 is with mobile trolley used, it is characterized in that: the counterweight scope of described loading Weight plate (3) is 0-800kg.