CN106644523A - Collision energy absorption device for automobile side surface cylindrical collision test and collision test device - Google Patents

Abstract

The present invention provides a collision energy absorption device for a side cylindrical collision test of an automobile and a collision test device. The collision energy absorption device includes a frame and a plurality of stainless steel pipes arranged on the frame; the collision test device can effectively prevent a "secondary collision" between the automobile and a rigid cylindrical barrier. The collision energy absorption device of the present invention can decelerate and stop the mobile platform vehicle through the crushing energy absorption of the stainless steel pipe after the mobile platform vehicle collides with the collision energy absorption device, thereby improving the reliability of the test. The wooden protection block installed on the mobile platform vehicle prevents the mobile platform vehicle frame from directly contacting and colliding with the stainless steel pipe, thereby improving the service life of the mobile platform vehicle body.

Description

Collision energy-absorbing device and collision test device for automobile side cylinder collision test

technical field

The invention belongs to the field of automobile collision tests, and in particular relates to a collision energy-absorbing device and a collision test device for automobile side cylinder collision tests.

Background technique

In the study of automobile crash safety, the real car crash test is the closest to the traffic accident, and can reflect the real safety performance of the vehicle to a large extent. Through the real car crash test, the deformation results of the test vehicle and the injury of the test dummy after the collision are analyzed . Evaluate vehicle safety performance, analyze and guide the design of vehicle passive safety.

The side cylinder impact test is a sideways movement test where the driver's head of the vehicle hits a rigid cylinder barrier at a certain speed, and truly reproduces the traffic accidents that occur when a vehicle running on the road hits a tree trunk, a pole or other columnar structures. According to the kinematic relationship between the test vehicle and the rigid cylindrical barrier, the side cylinder impact test can be divided into two types: the test vehicle moving laterally hits the fixed rigid cylindrical barrier (as shown in Figure 1), and the moving rigid cylindrical barrier hits the stationary The test vehicle (as shown in Figure 2). The invention solves the problem of the first type of cylindrical collision, when the test vehicle is carried by the mobile platform vehicle to move laterally and hit the rigid cylindrical barrier.

As we all know, the car can only run along the rolling direction of the wheels, and cannot move sideways by itself. In order to successfully complete the side cylinder impact test, the test vehicle is carried and transported by the mobile platform to make the test vehicle move sideways. The traction column of the mobile platform vehicle is connected with the track traction trailer to provide power for the entire collision system. Make the test vehicle move sideways and hit the rigid cylindrical barrier at a certain speed. When the collision is completed, the mobile platform vehicle still has a certain forward speed due to the driving inertia. If the mobile platform vehicle is not restrained to stop, the test vehicle will continue to move forward driven by the mobile platform vehicle and collide with the rigid cylindrical barrier again. , and this form of collision is called "secondary collision". The occurrence of "secondary collision" will seriously affect the test results.

Some similar mobile platform vehicles for side cylinder impact tests, such as: Patent No. 201120423369.5 describes a vehicle platform for vehicle side cylinder collisions, which uses grooved wheels to roll and engage with the test track to realize the function of carrying and transporting test vehicles. Limit the up and down movement of the platform in the vertical direction and how to ensure the straight running of the test platform. However, it did not explain how to ensure that the trial mobile platform vehicle prevents "secondary collisions". Patent No. 201120260531.6 is a traction auxiliary bracket for a flying floor vehicle. Through the assembly of the connection between the chute and the traction rail, it can effectively limit the horizontal displacement generated during the driving process of the flying floor vehicle. However, the installation is greatly affected by site factors. For example, when encountering a fully enclosed traction track or obstacles on the track, the installation is complicated. The above patents do not provide relevant technical instructions on how to ensure the avoidance of "secondary collision", effectively, conveniently and quickly install and use the mobile platform vehicle, and improve the anti-collision fatigue life of the mobile platform vehicle.

Contents of the invention

In view of this, the present invention aims to propose a collision energy-absorbing device and a collision test device for automobile side cylinder collision tests, to solve the problem of the gap between the test vehicle and the rigid cylinder when using the existing mobile platform vehicle for automobile side cylinder collision tests. The problem of susceptibility to secondary collisions occurs.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A collision energy absorbing device for a side column collision test of an automobile, comprising a frame body and a plurality of stainless steel pipes (205-216) arranged on the frame body.

Further, the stainless steel pipe (205-216) is detachably connected to the frame body;

Preferably, the stainless steel pipes are arranged in parallel.

Further, the frame body includes a fixed connecting plate (201), a supporting rib (202), a base (203) and a stainless steel pipe fixing support (204) for fixing the collision energy-absorbing device on the fixed collision barrier ;

The fixed connection plate (201) is connected to the base (203), and a support rib (202) is provided between the fixed connection plate (201) and the base (203);

The stainless steel pipe fixing support (204) includes a lower support and an upper support assembled and connected with the lower support, and the lower support is welded on the base (203).

Further, the length of the stainless steel pipe (205-216) is adjustable.

The present invention also provides an automobile side cylinder impact test device, comprising a mobile platform vehicle (100) for carrying and transporting a test vehicle, and the above-mentioned vehicle for absorbing energy and decelerating the mobile platform vehicle after the collision between the test vehicle and the rigid cylindrical barrier is completed. The collision energy-absorbing device (200), provides power for the collision system and the traction track system (500) that restricts the left and right movement of the mobile platform vehicle, and the collision fixing barrier (600) for fixing the collision energy-absorbing device (200) .

Further, there are two collision energy absorbing devices (200), which are arranged symmetrically with the traction track of the traction track system (500) as a symmetrical axis.

Further, vibration-damping wheels (109) are provided at the bottom of the mobile platform vehicle (100).

Preferably, the damping and damping wheel (109) includes a damping block (118), a damping block support plate (117), two wheel support side plates (119) and rubber wheels (116), and the lower end of the damping block (118) The boss is placed in the slot in the damping block support plate (117); three holes are respectively arranged on the wheel support side plate (119), and the middle hole in the wheel support side plate (119) and the damping block support plate (117) The cylinder assembly welded in the center, the other two circular holes are respectively connected with the supporting metal block and the rubber wheel (116) by bolts.

Further, the middle part of the mobile platform vehicle (100) is an acrylic transparent panel (115), and the two sides of the acrylic transparent panel (115) are provided with polytetrafluoroethylene panels (113).

Further, the mobile platform vehicle (100) includes a symmetrical left frame (101) and a right frame (102); the left frame (101) and the right frame (102) are provided with wooden supports boards (112), acrylic transparent support boards (114) are arranged between the wooden support boards (112);

The polytetrafluoroethylene panel (113) is arranged on the wooden support board (112); the acrylic transparent panel (115) is arranged on the acrylic transparent support board (114).

Further, the mobile platform vehicle (100) includes symmetrically arranged left frame (101) and right frame (102);

Both the left vehicle frame (101) and the right vehicle frame (102) are welded by steel;

The left vehicle frame (101) and the right vehicle frame (102) are welded with the vehicle frame connecting plate (128～130), and the vehicle frame connecting plate (128～130) is connected by three groups of bolts to connect the left vehicle frame (101), the right vehicle Frame (101) assembly connection;

There are two oblique support beams (103), which are installed on the left vehicle frame (101) and the right vehicle frame (102) respectively, to strengthen the vehicle frame strength;

The vertical support beam (104) is assembled on the right vehicle frame (102) to strengthen the collision impact on the vertical direction of the vehicle frame; the rear inclined support beam (105) is assembled on the left vehicle frame (101) by bolts;

Two traction rings (111) are symmetrically welded on the left vehicle frame (101) and the right vehicle frame (102);

The guide column support frame (107) is assembled on the left vehicle frame (101) and the right vehicle frame (102) by bolts, the guide column fixed support (106) is fixed on the guide column support frame (107), and the guide column fixed support A guide column (121) is provided in the cylinder fixing hole of (106);

28 wheel fixing plates (108) are divided into four groups and each group is 7, and the left vehicle frame (101), the right vehicle frame (102) bottoms are welded respectively in two groups;

The damping and damping wheel (109) is fixedly assembled on the wheel fixing plate (108) by bolts.

Further, the collision fixed barrier (600) is provided with a side collision pillar (300).

Preferably, the side collision pillar (300) is fixed on the collision fixed barrier (600) through a support frame;

Preferably, the support frame includes a steel pipe support channel steel (309), a plurality of horizontal H steel support beams (305) arranged directly behind the steel pipe support channel steel (309), and the horizontal H steel support beams (305) The width is less than the width of steel pipe support channel steel (309), and the end of each horizontal H steel support beam (305) is connected with a fixed connection plate (301), and the horizontal H steel support beam (305) is welded through the connection plate (303) Welded on the fixed connecting plate (301);

Preferably, vertical H steel support beams (304) are arranged between adjacent horizontal H steel support beams (305), and the connection between the vertical H steel support beams (304) and the steel pipe support channel steel (309) The width of the horizontal H steel support beam (8) between is less than the width of the steel pipe support channel steel (309);

Preferably, the horizontal H steel support beams (305) include three horizontal support beams and two oblique support beams; Square tube support beams (302) are arranged on both sides between the support beam and the fixed connecting plate (301);

Preferably, the mobile platform vehicle (100) is provided with a side auxiliary platform (400);

Preferably, two sets of guide columns (121) are provided on the mobile platform vehicle (100), and the two sets of guide columns (121) are connected to the traction track and form a straight line with the traction column and the traction trailer.

Compared with the prior art, the collision energy-absorbing device and the collision test device for a side column collision test of a vehicle according to the present invention have the following advantages:

(1) The present invention is used for the collision energy-absorbing device of the mobile platform vehicle used in the side cylinder impact test. After the mobile platform vehicle collides with the collision energy-absorbing device, the mobile platform vehicle will decelerate and stop through the crushing energy absorption of the stainless steel tube, effectively avoiding the impact of the vehicle. The "secondary collision" with the rigid cylindrical barrier improves the reliability of the test. The wooden protection block assembled on the mobile platform vehicle avoids the direct contact and collision between the mobile platform vehicle frame and the stainless steel pipe, which improves the reliability of the mobile platform vehicle body. service life.

(2) The wheel of the present invention is designed according to the requirements of driving stability and strong adaptability in the collision test device used for the side column collision test of the automobile. During the small test, the vehicle body vibrates in the vertical direction. In addition, the design of the wheels reduces the overall height of the vehicle body, improves the stability of the mobile platform vehicle during driving, and improves the accuracy of the test.

(3) The guide device of the present invention is used for the mobile platform vehicle of the side cylinder impact test device. Two sets of two guide columns are placed in the traction track, and the outer edge of the guide column sleeve is in close contact with the traction track, effectively restricting the movement The platform vehicle shakes left and right during the running process, and the guide column and the traction track are in contact with the traction track through the outer shaft, which is easy to install and is less affected by the external environment;

(4) On the support frame structure, the width of the horizontal H steel support beam in front of the vertical H steel support beam is smaller than the diameter of the collision column, which can avoid the situation that the support beam is wider than the collision column, when the test vehicle hits the cylindrical barrier body After crushing and immersion, a collision occurs between the test vehicle and the support beam, which affects the test results and can further avoid secondary collisions.

Description of drawings

The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 is a schematic diagram of a frontal cylinder collision of a car;

Figure 2 is a schematic diagram of a side column collision of a car;

Figure 3 is a schematic diagram of the mobile platform vehicle driving the test vehicle to hit the rigid cylindrical barrier at a certain speed during the collision process;

Fig. 4 is after the test vehicle collides with the rigid cylindrical barrier for an instant, the instant impact force will make the test vehicle rebound after being crushed;

Figure 5 is a schematic diagram of the mobile platform vehicle continuing to move forward due to the existence of inertial force; Figure 6 is a top view of the test device assembly of the side cylinder impact test;

Fig. 7 The front view of the test device assembly of the side cylinder impact test;

Figure 8 is a side view of the test device assembly of the side cylinder impact test;

The structural representation of the mobile platform vehicle frame of Fig. 9;

Fig. 10 is the structural representation of mobile platform vehicle;

Fig. 11 is a structural schematic diagram of the vibration damping and damping wheel of the mobile platform vehicle;

Fig. 12 is a partial sectional view of the vibration damping and damping wheel of the mobile platform vehicle;

Fig. 13 is the assembly diagram of mobile platform car guide column and traction track;

Fig. 14 is a structural schematic diagram of the collision energy absorbing device;

Fig. 15 is a top view of the assembly drawing of the collision energy absorbing device;

Figure 16 is a schematic structural view of the side impact pillar installed in the support frame;

Figure 17 is a schematic diagram of the structure of the side auxiliary platform for the side cylinder impact test;

Figure 18 is a structural diagram of the side auxiliary platform frame for the side cylinder impact test;

Fig. 19 is a structural schematic diagram of the left vehicle frame and the right vehicle frame frame connecting plate;

Fig. 20 is a front structural schematic diagram of the fixed support of the guide column of the mobile platform vehicle;

Fig. 21 is a side view structural schematic diagram of the fixed support of the guide column of the mobile platform vehicle;

Fig. 22 is a structural schematic diagram of a transparent acrylic panel of a mobile platform vehicle;

Fig. 23 is a schematic structural diagram of the adjustable feet of the side auxiliary platform;

Fig. 24 is a partial cross-sectional schematic diagram of the adjustable foot structure of the side auxiliary platform.

Explanation of reference signs:

100-mobile platform vehicle; 200-collision energy-absorbing device; 300-side impact column; 400-side auxiliary platform; 500-traction system; 600-collision fixed barrier

101-left frame; 102-right frame; 103-front inclined support beam; 104-vertical support beam; 105-rear inclined support beam; Fixed plate; 109-vibration damping wheel; 110-wooden protection block; 111-traction ring; 112-wooden support plate; 113-PTFE panel; 114-acrylic transparent support plate; 115-acrylic transparent panel; Rubber wheels; 117-damping block support plate; 118-damping block; 119-lateral support plate; 120-guiding column fixed connecting plate; 121-guiding column cylinder; Plastic inner shaft sleeve; 124-guide column shaft sleeve support plate; 125-traction chain; 126-traction connecting column; 127-20mm channel steel; 128-130-left and right frame connecting plates.

201-fixed connection plate; 202-support rib; 203-base; 204-fixed support of stainless steel pipe; 205-216-stainless steel pipe.

301-fixed connection plate for side impact column; 302-square tube support beam; 303-welded connection plate; 304-vertical H steel support beam; 305-horizontal H steel support beam; 306-steel pipe sealing plate; 307-254mm steel pipe; 308 - concrete; 309 - steel pipe support channel.

401-adjustable feet; 402-side auxiliary platform frame; 403-wooden support board; 404-polytetrafluoroethylene panel; 405-channel steel frame; 406-angle steel support beam; 407-L support board.

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.

The present invention will be described in detail below with reference to the accompanying drawings and examples.

In the test preparation stage, a pair of collision energy-absorbing devices and side collision pillars were respectively installed on the collision fixed barrier. The mobile platform vehicle is placed on the traction track of the crash test room, and its guide column is placed in the guide rail to contact with the traction track to limit left and right shaking. When adjusting the mobile platform vehicle, the wooden protection block and the longest stainless steel tube of the collision energy-absorbing device The distance between them is 100mm, and the mobile platform truck is fixed after completion. The test vehicle is placed on the mobile platform by a forklift, and the test vehicle is moved so that the corresponding position of the driver's head in front of the B-pillar is in contact with the side impact pillar. An auxiliary platform is placed on the left side of the mobile platform vehicle to expand the test operation area, which facilitates the movement of the test vehicle on the mobile platform vehicle and the adjustment of the test placement position.

During the driving process of the mobile platform vehicle, the vibration during the driving process of the mobile platform vehicle will affect the test results. Therefore, the vibration damping wheel is used to buffer the vibration in the vertical direction during the driving process through the damping block of the wheel, so as to improve the driving performance of the mobile platform vehicle. stability. Whether the mobile platform vehicle runs straight is related to the accuracy of the collision test results. In order to ensure that the mobile platform vehicle travels in a straight line, two sets of guide columns are connected with the traction rail to limit the left and right shaking of the mobile platform vehicle.

During the collision process, the test vehicle hits the side bumper at a certain speed driven by the mobile platform vehicle, as shown in Figure 3, when the side of the test vehicle collides with the side bumper instantly, the huge impact force will make the test The vehicle collapsed and rebounded, as shown in Figure 4. However, due to the existence of inertial force, the mobile platform vehicle will continue to move forward, as shown in Figure 5, if it is not stopped, the test vehicle will have a "secondary collision" with the side impact pillar, which will affect the results of the collision test. In order to avoid the occurrence of "secondary collision", the panel of the mobile platform vehicle is made of nylon plastic material with a small friction coefficient, which reduces the friction between the panel of the mobile platform vehicle and the car tires, and increases the rebound distance of the car after collision. In addition, a pair of collision energy-absorbing devices are placed in front of the mobile platform vehicle, and the wooden protective block of the mobile platform vehicle hits the stainless steel tube of the collision energy-absorbing device, and the mobile platform vehicle is decelerated and parked by using the crushing energy of the stainless steel tube, effectively preventing the test A "secondary collision" occurs between the vehicle and the rigid column.

As shown in Figures 6-8, a test device for side cylinder impact tests includes a mobile platform vehicle 100 for carrying and transporting a test vehicle, which is used for moving The platform vehicle decelerates and stops to avoid the collision energy-absorbing device 200 of "secondary collision", the side impact column 300 used for the side column collision test, and the side auxiliary platform 400 used for the preparation work before the test and the finishing work after the test is completed, for The collision system provides power and is connected with the guide column to limit the left and right swaying of the mobile platform vehicle during driving. The crash fixation barrier 600 is placed at the end of the track in the traction system 500 with the two center aligned. The mobile platform vehicle 100 has a body length of 4000mm and a width of 6000mm. There is a pair of collision energy-absorbing devices 200 directly in front of the mobile platform vehicle 100. The collision energy-absorbing devices 200 are fixedly installed on the collision fixed barrier 600, and the distance between the inner edge of the two collision energy-absorbing devices 200 and the center of the traction rail 500 is 585 mm. The distance between the stainless steel pipe 205 in the collision energy-absorbing device 200 and the wooden protective block 110 in the mobile platform vehicle 100 is 100 mm and the centers are aligned. The side impact column 300 is fixedly installed on the fixed collision barrier 600 , and it should be ensured that the collision column 300 is installed at the center of the fixed collision barrier 600 . In addition, the distance between the bottom surface of the side impact pillar steel pipe 304 and the surface of the polytetrafluoroethylene panel 113 of the mobile platform vehicle 100 is 100 mm. Long 4000mm is arranged on mobile platform vehicle 100 left side, the side auxiliary platform 300 of wide 2000mm.

As shown in Figure 9, the mobile platform vehicle 100 includes a left vehicle frame 101 and a right vehicle frame 102 of a frame structure welded by steel materials, and the left vehicle frame 101 and the right vehicle frame 102 are symmetrical, and the vehicle frame is welded with left and right The frame connecting plates 128-130, the left and right frame connecting plates 128-130 connect the left vehicle frame 101 and the right vehicle frame 102 through three groups of high-strength bolts. After the frame is welded, it needs to vibrate to eliminate internal stress. The oblique support beam 103 has two left and right symmetrically assembled on the left vehicle frame 101, the right vehicle frame 102, strengthens vehicle frame support rigidity. The vertical support beam 104 is assembled on the right vehicle frame 102 to enhance the support rigidity of the vehicle frame in the vertical direction. The rear inclined support beam 105 is connected to the left vehicle frame 101 by bolt assembly. Two traction rings 111 are welded symmetrically on the left vehicle frame 101 and the right vehicle frame 102 and the distance from the connecting hole in the traction ring 111 to the center of the mobile platform vehicle 100 is 495mm. The guide column support frame 107 is assembled on the vehicle frame by bolts, and is used for fixing the guide column fixed support 106. The guide column fixed support 106 is assembled on the vehicle frame and the guide column support frame 107, and the guide column fixed support 106 The circular hole on the fixed guide column 121. A total of 28 wheel fixing plates 108 are divided into four groups and each group of 7 is welded on the left vehicle frame 101 and the right vehicle frame 102 respectively. The shock-absorbing and damping wheel 109 is fixedly assembled on the wheel fixing plate 108 by bolts. The wooden protective block 110 is a composite plank with a thickness of 20 mm, which is fixedly connected to the frame of the mobile platform vehicle by bolts. Avoid direct collision contact with the stainless steel pipe during the collision process, protect the vehicle frame and improve the service life of the mobile platform vehicle 100 .

As shown in FIG. 10 , the wooden support board 112 of the vehicle frame is a wooden composite board with a thickness of 20 mm, which is fixed to cover the vehicle frame by studs to support the test vehicle on the mobile platform vehicle 100 . The polytetrafluoroethylene panel 113 has a thickness of 3 mm, and is fixed on the wooden support plate 112 by screws. During the crash test, it is easy to cause wear and tear, so it is divided into 18 pieces. If breakage occurs during the test, the damaged guide column fixing support 106 can be replaced separately, saving test cost. The acrylic transparent support plate 114 adopts a transparent acrylic material with a thickness of 20mm and is assembled on the vehicle frame by bolts, so that the bottom camera can photograph the bottom situation of the test vehicle at the moment of collision. In order to prevent the acrylic transparent support plate 114 from being scratched or damaged by collision, a layer of acrylic transparent panel 115 with a thickness of 3mm is installed on it by screws, and it can be replaced separately in the case of scratches or damage, saving test costs. The traction chain 125 is assembled on the traction ring 111, and the end of the traction chain 125 is connected to the traction column 126, and is connected with the traction trailer of the collision traction system 500 through the traction column 126, providing power for the entire collision test.

As shown in Figure 11, the running wheel is a shock-absorbing damping wheel, and the damping block 118 is made up of rubber and spring, and is installed on the wheel connecting plate, and the boss in the damping block 118 is placed in the slot in the damping block support plate 117, The middle hole in the wheel support side plate 119 is assembled with the side boss welded in the damping support plate 117, and the other two circular holes are respectively connected with the support block and the rubber wheel 116 by bolts, wherein the rubber wheel 116 is 100mm in diameter. The damping block 118 and the rubber wheel 116 are used to buffer the vibration during the traveling of the mobile platform vehicle to improve the test accuracy. In addition, the wheels and vibration damping blocks are installed front and rear compared with up and down installation, which reduces the overall height of the wheels, reduces the overall height of the mobile platform vehicle, and improves the driving stability of the mobile platform vehicle.

As shown in Figure 12-13, the assembly and connection diagram of the guide column assembly and the traction track in the traction system 500, the guide column fixing support 106 is used to fix the guide column, and the guide column body 121 is placed on the guide column fixing support 106 in the fixing hole. The guide column is installed on the guide column fixing connecting plate 120 by bolts, and another set of bolts fix the guiding column on the guiding column fixing support 106 through the “U” shaped slot hole in the guiding column fixing connecting plate 120 . The guide column nylon plastic axle sleeve 123 of transition assembly in the guide column outer axle sleeve 122. The guide column outer sleeve 122 is in contact with the traction rail 500, the guide column nylon plastic sleeve 123 is assembled with the guide column body 121, and the guide column sleeve support plate 124 is assembled and connected with the guide column body 121 by bolts for aligning the shaft. The sleeve is supported and fixed to prevent falling off. The nylon plastic of axle sleeve 123 in guide post has self-lubricating effect, is conducive to the rotation of axle sleeve in the traveling process of mobile platform vehicle. The two sets of guide columns are connected with the traction track and the traction column is connected with the traction trailer to form a straight line to prevent the left and right shaking of the mobile platform vehicle during driving and affect the test accuracy.

As shown in Figures 14 and 15, there are two collision energy absorbing devices 200, which are symmetrically installed on the collision fixed barrier 600 through bolts, and the distance between the inner edge and the center of the traction track is 585mm. The distance between two adjacent stainless steel pipes in the crash energy absorbing device 200 is 280 mm. The frame body 203 of the crash energy absorbing device is welded to the fixed connecting plate 201 . The supporting ribs 202 are welded on the frame body 203 and the fixed connecting plate 201 to strengthen the structural rigidity. The lower support of the stainless steel pipe fixing support 204 is welded on the collision energy absorbing device frame body 203, and the upper support is assembled and connected with the lower support by bolts to fix the stainless steel pipes 205-216. The stainless steel tubes in the left and right collision energy-absorbing devices are installed symmetrically. During the test, the stainless steel tube is crushed and deformed by the collision of the mobile platform vehicle 100 to absorb energy and decelerate the mobile platform vehicle to stop, so as to prevent the "secondary collision" between the test vehicle and the side impact column 300 from affecting the test results. The length, quantity and installation position of the stainless steel pipes 205-216 used should be determined according to the specific collision speed of the test vehicle. Table 1 shows the correspondence between the collision velocity and the length of the stainless steel tube. When increasing the speed of the crash test, the number of stainless steel tubes should be increased and their dimensions should be lengthened to ensure that excessive impact is generated between the mobile platform vehicle 100 and the collision energy-absorbing device 200 to deform the mobile platform vehicle 100 . In Table 1, 29km/h is the test speed of the Euro-NCAP side cylinder impact regulations. At this time, the length of the stainless steel pipes 206 and 215 in the collision energy-absorbing device 200 should be 360 mm, the length of the stainless steel pipes 207 and 214 should be 340 mm, and the length of the stainless steel pipes 209, 214 should be 360 mm. 212 length is 320mm. The test speed of the American NHTSA side cylinder impact regulations is 32km/h, and the placement and length of the 200 stainless steel tubes of the impact energy absorbing device should be based on the placement and length of the Euro-NCAP side cylinder impact test stainless steel tubes. Stainless steel tubes 208 and 213 should be added Its length is 320 mm. Table 1 shows the corresponding relationship between other collision velocities and the installation position of the stainless steel pipe and the length of the stainless steel pipe at the relative position.

Table 1: Corresponding relationship between the length placement position of the stainless steel tube of the collision energy-absorbing device and the collision speed

As shown in Figure 16, the side impact pillar 300 is assembled on the collision fixed barrier 600 through the fixed connecting plate 301, aligned with the center of the collision fixed barrier 600, and ensures that the bottom end of the side impact pillar is transparent to the center of the mobile platform vehicle 100. The distance between the acrylic panels 115 is 100 mm. The thickness of the connecting welding plate 303 is 10mm to facilitate the welding of the fixing connecting plate 301 and the H support beam. The support frame structure is welded by the 100mm square tube support beam 302, the 200mm vertical H support beam 304 and the 200mm horizontal H support beam 305. The column connection channel steel 309 is welded on the supporting frame 302, and the collision column is welded on the column connection channel steel 309, which is used for the connection between the collision column and the supporting frame body, and simultaneously for the support of the collision column. The collision column is a cylindrical steel pipe 307 with a diameter of 254 mm, a wall thickness of 20 mm, and a length of 2220 mm. A cylindrical steel pipe sealing plate 306 with a thickness of 20 mm is welded at the bottom of the cylindrical steel pipe 307. The inside of the cylindrical steel pipe is filled with concrete 308 to a distance of 23 mm from the top of the steel pipe. After the concrete is solidified, a cylindrical steel pipe sealing plate 306 with a thickness of 20 mm is welded on the top, and the cylindrical steel pipe 307 is formed into a solid structure by filling concrete 308 inside the cylindrical steel pipe 307 to enhance the strength of the cylindrical steel pipe and save manufacturing costs.

As shown in Figures 17 and 18, the side auxiliary platform 400 is placed on the left side of the mobile platform vehicle 100, with a length of 4000mm and a width of 2000m. The side auxiliary platform frame body 402 is welded by a 100mm channel steel frame 405, a 100mm angle steel support beam 406 and an L support plate 407. The wooden supporting board 403 is fixedly installed on the frame body 402 by bolts. The wooden supporting board 403 has the same material and function as the wooden supporting board 112 in the mobile platform vehicle 100 . The polytetrafluoroethylene panel 404 is also the same as the frame polytetrafluoroethylene panel 113 in the frame body 100 . A total of 8 L support plates 405 are welded on the side auxiliary platform 402. The height of the L support plate 405 bottom plate is 100mm, the width is 50mm, and the angle steel plate is 5mm in thickness. There is a threaded hole of M12mm in its center. The adjustable feet 401 are assembled on the L support plate 405, and the height of the side auxiliary platform 400 is adjusted by screwing the nuts of the adjustable feet 401 with a wrench.

As shown in Figure 19, the partial top view of the connection relationship between the left vehicle frame 101 and the right vehicle frame 102, the left and right vehicle frame connecting plates 128-130 are welded on the left vehicle frame 101 and the right vehicle frame 102, and the left and right vehicle frames The bottommost surfaces of the connecting plates 128-130 are aligned with the bottommost surfaces of the vehicle frame. Cut square hole at right vehicle frame 102 square pipes, and the vehicle frame beam between left and right vehicle frame connecting plates 129,130 is drilled with round hole, is used for the connection of two connecting plate bottom bolts of the car. The frame connecting plate is assembled and connected inside the square tube through the square hole to improve the lowest point of the overall frame.

As shown in Figures 20 and 21, there are two guide column fixed supports 106, which are respectively assembled on the vehicle frame and the guide column support frame 107. There are two circular holes with a diameter of 48mm in the guide column fixed support 106, and the two The distance between the two round holes is 58mm. The upper plate of the guide column fixed support 106 is drilled with 4 M10 threaded holes, which are assembled and connected with the column fixed connecting plate 120 for fixing the guide column.

As shown in Figure 22, the transparent acrylic panel 115 is a transparent acrylic plate with a length of 2900mm, a width of 2100mm, and a thickness of 3mm. Two "convex"-shaped holes are cut between the edges, so that the guide post can be assembled on the guide post through the hole and fixed. On the support 106. The transparent acrylic panel 115 is drilled with a counterbore, the counterbore has a diameter of 16 mm and a depth of 1.5 mm, and the diameter of the through hole is 10 mm. The transparent acrylic panel 115 is installed on the transparent acrylic support plate 114 by self-tapping screws and concave gaskets.

As shown in Figures 23 and 24, there are 8 adjustable feet 401, which are assembled on the L support plate 407 on the side auxiliary platform 400, and the nuts on the adjustable feet 401 are twisted by a wrench to raise or lower the side auxiliary platform The height makes it reach the same height as the mobile platform vehicle 100, increases the mobile range of the test vehicle, and facilitates the test to move to the test placement position.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. A collision energy-absorbing device for a side cylinder collision test of an automobile, characterized in that it comprises a frame body and a plurality of stainless steel pipes (205-216) arranged on the frame body. 2. The collision energy absorbing device according to claim 1, characterized in that: the stainless steel pipe (205-216) is detachably connected to the frame body; Preferably, the stainless steel pipes are arranged in parallel. 3. The collision energy-absorbing device according to claim 2, characterized in that: the frame body includes a fixed connecting plate (201), a supporting rib (202), a base (203) and a stainless steel pipe fixing support (204) ; The fixed connection plate (201) is connected to the base (203), and a support rib (202) is provided between the fixed connection plate (201) and the base (203); The stainless steel pipe fixing support (204) includes a lower support and an upper support assembled and connected with the lower support, and the lower support is welded on the base (203). 4. An automobile side cylinder impact test device, characterized in that: comprising a mobile platform vehicle (100) for carrying and transporting a test vehicle, the collision energy-absorbing device (200) described in any one of claims 1-3, being The collision system provides power and a traction rail system (500) for restricting the left and right movement of the mobile platform vehicle, and a collision fixing barrier (600) for fixing the collision energy absorbing device (200). 5. The vehicle side cylinder impact test device according to claim 4, characterized in that: there are two collision energy absorbing devices (200), which are arranged symmetrically with the traction track of the traction track system (500) as a symmetrical axis. 6. The vehicle side cylinder impact test device according to claim 5, characterized in that: the bottom of the mobile platform vehicle (100) is provided with damping wheels (109); Preferably, the damping and damping wheel (109) includes a damping block (118), a damping block support plate (117), two wheel support side plates (119) and rubber wheels (116), and the lower end of the damping block (118) The boss is placed in the slot in the damping block support plate (117); three holes are respectively arranged on the wheel support side plate (119), and the middle hole in the wheel support side plate (119) and the damping block support plate (117) The cylinder assembly welded in the center, the other two circular holes are respectively connected with the supporting metal block and the rubber wheel (116) by bolts. 7. The vehicle side cylinder impact test device according to claim 6, characterized in that: the middle part of the mobile platform vehicle (100) is an acrylic transparent panel (115), and the two sides of the acrylic transparent panel (115) are provided with poly Tetrafluoroethylene faceplate (113). 8. The vehicle side cylinder impact test device according to claim 7, characterized in that: the mobile platform vehicle (100) comprises a symmetrically arranged left vehicle frame (101) and a right vehicle frame (102); Both the frame (101) and the right frame (102) are provided with wooden support plates (112), and acrylic transparent support plates (114) are arranged between the wooden support plates (112); The polytetrafluoroethylene panel (113) is arranged on the wooden support board (112); the acrylic transparent panel (115) is arranged on the acrylic transparent support board (114). 9. The vehicle side cylinder impact test device according to claim 8, characterized in that: the mobile platform vehicle (100) comprises symmetrically arranged left frame (101) and right frame (102); Both the left vehicle frame (101) and the right vehicle frame (102) are welded by steel; The left vehicle frame (101) and the right vehicle frame (102) are welded with the vehicle frame connecting plate (128～130), and the vehicle frame connecting plate (128～130) is connected by three groups of bolts to connect the left vehicle frame (101), the right vehicle Frame (101) assembly connection; There are two oblique support beams (103), which are installed on the left vehicle frame (101) and the right vehicle frame (102) respectively, to strengthen the vehicle frame strength; The vertical support beam (104) is assembled on the right vehicle frame (102) to strengthen the collision impact on the vertical direction of the vehicle frame; the rear inclined support beam (105) is assembled on the left vehicle frame (101) by bolts; Two traction rings (111) are symmetrically welded on the left vehicle frame (101) and the right vehicle frame (102); The guide column support frame (107) is assembled on the left vehicle frame (101) and the right vehicle frame (102) by bolts, the guide column fixed support (106) is fixed on the guide column support frame (107), and the guide column fixed support A guide column (121) is provided in the cylinder fixing hole of (106); 28 wheel fixing plates (108) are divided into four groups and each group is 7, and the left vehicle frame (101), the right vehicle frame (102) bottoms are welded respectively in two groups; The damping and damping wheel (109) is fixedly assembled on the wheel fixing plate (108) by bolts. 10. The vehicle side cylindrical impact test device according to any one of claims 5-9, characterized in that: the fixed impact barrier (600) is provided with a side impact column (300); Preferably, the side collision pillar (300) is fixed on the collision fixed barrier (600) through a supporting frame; Preferably, the support frame includes a steel pipe support channel steel (309), a plurality of horizontal H steel support beams (305) arranged directly behind the steel pipe support channel steel (309), and the horizontal H steel support beams (305) The width is less than the width of steel pipe support channel steel (309), and the end of each horizontal H steel support beam (305) is connected with a fixed connection plate (301), and the horizontal H steel support beam (305) is welded through the connection plate (303) Welded on the fixed connecting plate (301); Preferably, vertical H steel support beams (304) are arranged between adjacent horizontal H steel support beams (305), and the connection between the vertical H steel support beams (304) and the steel pipe support channel steel (309) The width of the horizontal H steel support beam (8) between is less than the width of the steel pipe support channel steel (309); Preferably, the horizontal H steel support beams (305) include three horizontal support beams and two oblique support beams; Square tube support beams (302) are arranged on both sides between the support beam and the fixed connecting plate (301); Preferably, the mobile platform vehicle (100) is provided with a side auxiliary platform (400); Preferably, two sets of guide columns (121) are provided on the mobile platform vehicle (100), and the two sets of guide columns (121) are connected to the traction track and form a straight line with the traction column and the traction trailer.