CN211364472U - Automobile collision energy absorption device and collision test device - Google Patents
Automobile collision energy absorption device and collision test device Download PDFInfo
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- CN211364472U CN211364472U CN201921663505.0U CN201921663505U CN211364472U CN 211364472 U CN211364472 U CN 211364472U CN 201921663505 U CN201921663505 U CN 201921663505U CN 211364472 U CN211364472 U CN 211364472U
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Abstract
The utility model discloses an automobile collision energy-absorbing device and a collision test device, wherein the energy-absorbing device comprises a frame body and an energy-absorbing mechanism, the energy-absorbing mechanism comprises an energy-absorbing pipe and an energy storage bottle, and the energy-absorbing pipe is communicated with the energy storage bottle through a pipeline; the energy absorption tube comprises a cylinder body and a piston rod which is sleeved on the inner wall of the cylinder body in a sliding manner and can stretch under stress; the collision test device comprises a traction trolley for driving the test trolley to move, an energy absorption device, a traction motor for providing power for the traction trolley and a traction rail for limiting the movement of the traction trolley. The utility model has novel structure, when the traction trolley impacts the energy absorption device, the piston rod in the energy absorption tube moves backwards, and the impact force of the trolley can be converted into the pressure of the energy storage bottle; after the impact energy is unloaded, the piston rod is pushed back to the original position by the energy storage bottle through the pressure in the bottle, and the repeated energy absorption effect is realized. The mode replaces the mode of energy absorption deformation of the traditional aluminum energy absorption pipe, saves the time for dismounting and replacing the energy absorption pipe every time, and improves the working efficiency.
Description
Technical Field
The utility model relates to the field of automotive technology, concretely relates to car collision energy-absorbing device and bump test device.
Background
In the field of automobile crash tests, a test vehicle is unpowered in a crash test, and traction force is required to be provided by an external power system to pull the test vehicle to reach a certain speed to collide with a barrier, so that the test is completed. How the external power system is connected with the test vehicle and how to effectively disconnect the test vehicle at the moment of collision without influencing the test result are key factors influencing the automobile collision test. In addition, in the collision test, an energy absorption device for neutralizing the collision force of the tractor needs to be arranged. The existing energy absorption equipment generally adopts a mode that an aluminum energy absorption pipe deforms to absorb energy, and the energy absorption pipe needs to be replaced again every time a collision test is carried out, so that the existing energy absorption equipment is troublesome.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides an automobile collision energy-absorbing device and collision test device.
The utility model discloses a solve the technical scheme that its problem adopted and be:
the utility model discloses the first aspect provides a car collision energy-absorbing device, including support body and the energy-absorbing mechanism of setting on the support body, energy-absorbing mechanism includes a plurality of energy-absorbing pipes and energy storage bottle, wherein:
the energy absorption pipes are communicated with the energy storage bottle through pipelines;
the energy absorption pipe comprises a cylinder body and a piston rod which is sleeved on the inner wall of the cylinder body in a sliding manner and can stretch under stress.
Therefore, when the traction trolley impacts the energy absorption device, the piston rod in the energy absorption pipe is pressed to move backwards, and the impact force of the trolley can be converted into the pressure of the energy storage bottle; after the impact energy is unloaded, the energy storage bottle pushes the piston rod on the energy absorption tube back to the original position through the pressure in the bottle, and the repeated energy absorption effect is realized. The mode replaces the mode of energy absorption deformation of the traditional aluminum energy absorption pipe, saves the time for dismounting and replacing the energy absorption pipe every time, and greatly improves the working efficiency.
Furthermore, hydraulic oil is arranged in the cylinder body, and the cylinder body is communicated with the energy storage bottle through an oil pipe.
Therefore, when the traction trolley impacts the energy absorption device, the piston rod in the energy absorption pipe is pressed to move backwards, and therefore hydraulic oil in the cylinder body is pressed back to the energy storage bottle through the oil pipe.
Further, a buffer gas is arranged in the cylinder body, and the cylinder body is communicated with the energy storage bottle through a gas pipe.
Therefore, when the traction trolley impacts the energy absorption device, the piston rod in the energy absorption pipe is pressed to move backwards, and therefore the buffer gas in the cylinder body is pressed back to the energy storage bottle through the gas pipe.
Furthermore, a plurality of the energy absorption pipes are arranged in parallel.
Therefore, the plurality of energy absorption pipes are arranged in parallel, so that the energy absorption function of the energy absorption device is maximized, and the traction trolley can be stopped at the fastest speed.
Furthermore, a pressure gauge is arranged on the energy storage bottle.
Therefore, the pressure gauge is arranged on the energy storage bottle, so that the pressure in the energy storage bottle can be monitored in real time.
Specifically, the pressure gauge is a hydraulic pressure gauge or a gas pressure gauge.
Furthermore, a control valve is arranged on the energy storage bottle.
Therefore, the control valve is arranged on the energy storage bottle, so that the energy storage bottle can be pressurized or depressurized according to actual requirements.
Specifically, the control valve is an air pressure control valve or an oil pressure control valve.
The utility model discloses the second aspect still provides an automobile collision test device, including the traction trolley that drives the test dolly motion, the energy-absorbing device that above-mentioned first aspect provided, do traction trolley provides the traction motor and the restriction of power the track that pulls of traction trolley motion.
Therefore, when the automobile collision test is carried out, the traction motor provides power and drives the traction trolley to move along the traction track, and the traction trolley drives the test trolley to move simultaneously. After the traction trolley impacts the energy absorption device, the test trolley is unhooked from the traction trolley and impacts a target object through inertia, and the automobile impact test is completed.
Further, the small tractor comprises a body, a hanging mechanism for hanging a chain, a clamping mechanism for clamping a steel wire rope and a rocker arm mechanism, wherein:
the hanging mechanism is connected with the test trolley through a chain;
a locking elastic sheet for fixing the chain is arranged in the hanging mechanism;
the clamping mechanism is connected with the traction motor through a steel wire rope;
the rocker arm mechanism comprises a rocker arm which is rotatably connected with the body and a cam which is arranged on the rocker arm; the cam is matched with the clamping mechanism to clamp or release the steel wire rope;
one end of the rocker arm extends out of the body, and a frame body of the energy absorption device is provided with a stop block matched with the rocker arm;
therefore, when the traction trolley impacts the energy absorption device, the end, extending out of the body, of the rocker arm is impacted through the stop block on the frame body, so that the rocker arm rotates relative to the body, and the cam is driven to be separated from the clamping mechanism to release the steel wire rope;
when the traction trolley impacts the energy absorption device and stops, the test trolley continues to move forwards and drives the chain to overcome the elasticity of the stopping elastic sheet so as to separate from the hanging mechanism.
Further, articulate mechanism still includes first base and sets up a plurality of hangers that are used for articulating the chain on first base, wherein:
the first base is provided with an installation groove for installing a locking elastic sheet;
the plurality of hanging pieces are uniformly arranged on the periphery of the stop elastic piece;
when the chain is hung on the hanging piece, the stopping elastic sheet can clamp the chain.
From this, through set up around the locking shell fragment and hang the union piece to can hang two side chains of list or whole chain, guarantee the elasticity of iron chain, thereby satisfy the traction to experimental dolly.
Furthermore, the energy absorption device is connected with the traction rail through the pressing plate.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses an automobile collision energy-absorbing device, when the traction trolley collides with the energy-absorbing device, the piston rod in the energy-absorbing pipe is pressed to move backwards, and the impact force of the trolley can be converted into the pressure of the energy storage bottle; after the impact energy is unloaded, the energy storage bottle pushes the piston rod on the energy absorption tube back to the original position through the pressure in the bottle, and the repeated energy absorption effect is realized. The mode replaces the mode of energy absorption deformation of the traditional aluminum energy absorption pipe, saves the time for dismounting and replacing the energy absorption pipe every time, and greatly improves the working efficiency.
(2) The utility model discloses an automobile collision test device, its traction carriage is connected with the test carriage through the chain on the hooking structure, is connected with the traction motor through the wire rope on the clamping mechanism, and the connection mode is stable and reliable, the unhooking condition can not appear in the traction process; in addition, the test speed is controlled by the traction motor, so that the impact speed is accurate and stable, and the test precision and accuracy are ensured.
(3) The utility model discloses a car bump test device, stable in structure is reliable, does not have fragile part, and repeatedly usable has effectively saved the test cost.
(4) The utility model discloses a car bump test device can be through increasing other anchor clamps in order to be used for pulling other objects, and its degree of difficulty of reforming transform is lower with the cost, and the commonality is big.
Drawings
Fig. 1 is the structure schematic diagram of the energy absorbing device in the automobile collision test device.
FIG. 2 is a schematic structural view of a tractor in the automobile crash test device of the present invention;
FIG. 3 is a schematic structural view of the wagon of FIG. 2 from another perspective;
FIG. 4 is a schematic structural view of an energy absorbing device and a tractor of the automobile crash test device of the present invention;
wherein the reference numerals have the following meanings:
1. an energy absorbing device; 11. a frame body; 12. an energy absorbing mechanism; 121. an energy storage bottle; 122. an energy absorbing tube; 1221. a piston rod; 1222. a cylinder body; 13. a pipeline; 14. a pressure gauge; 15. a control valve; 16. an energy storage bottle strap; 17. a stopper; 18. pressing a plate; 2. a tractor; 21. a body; 22. a hanging mechanism; 221. a first base; 222. hanging and connecting pieces; 223. a locking spring plate; 23. a clamping mechanism; 231. a second base; 232. a fixing plate; 233. pushing the plate; 234. a push plate reset mechanism; 2341. a guide bar; 2342. a slider; 2343. a spring; 24. a rocker arm mechanism; 241. a rocker arm; 242. a cam; 243. a stop bolt; 25. braking the baffle; 26. a guide wheel.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example one
As shown in fig. 1, the utility model provides a car collision energy-absorbing device in the first aspect, including support body 11 and the energy-absorbing mechanism 12 of setting on support body 11, in this embodiment, this support body 11 is the rectangle form, and all is equipped with vertical baffle on the higher authority, lower authority and the left side of support body 11 to form a cavity. The energy absorbing mechanism 12 comprises a plurality of energy absorbing pipes 122 and energy storing bottles 121, in this embodiment, the plurality of energy absorbing pipes 122 are all arranged in parallel on the vertical baffle plate on the left side of the frame body 11, the energy storing bottles 121 are installed in the cavity of the frame body 11 through energy storing bottle straps 16, and the plurality of energy absorbing pipes 122 are communicated with the energy storing bottles 121 through pipelines 13. The energy absorption tube 122 includes a cylinder 1222 and a piston rod 1221 slidably sleeved on the inner wall of the cylinder 1222 and capable of stretching under force. In this embodiment, the cylinder 1222 is a cylinder, which contains hydraulic oil, and the pipeline 13 is an oil pipe.
Therefore, when the traction trolley 2 impacts the energy absorption device 1, the piston rod 1221 in the energy absorption pipe 122 is pressed to move backwards, hydraulic oil in the cylinder 1222 is pressed back to the energy storage bottle 121 through the oil pipe, and accordingly the impact force of the traction trolley 2 is converted into the pressure of the energy storage bottle 121; after the impact energy is unloaded, the energy storage bottle 121 pushes the piston rod 1221 on the energy absorption tube 122 back to the original position through the pressure in the bottle, so that the repeated energy absorption effect is realized. The mode replaces the traditional energy absorption deformation mode of the aluminum energy absorption tube, saves the time for disassembling and replacing the energy absorption tube 122 every time, and greatly improves the working efficiency. In addition, the plurality of energy absorption pipes 122 are arranged in parallel, so that the energy absorption function of the energy absorption device 1 is maximized, and the traction trolley 2 can be stopped at the fastest speed.
In addition, the accumulator tank 121 is further provided with a pressure gauge 14 and a control valve 15, in this embodiment, the pressure gauge 14 is a hydraulic gauge, and the control valve 15 is an oil pressure control valve. Thus, by providing the pressure gauge 14 to the accumulator tank 121, the pressure in the accumulator tank 121 can be monitored in real time. By arranging the control valve 15 on the energy storage bottle 121, the energy storage bottle 121 can be pressurized or depressurized according to actual needs, so that the energy storage bottle 121 maintains a working pressure state.
In addition, the energy absorption device also comprises a pressure plate 18, and the energy absorption device 1 is connected with the traction track through the pressure plate 18.
Example two
As shown in fig. 2-4, the second aspect of the present invention further provides an automobile crash test device, which comprises a towing trolley 2 for driving the test trolley to move, an energy absorbing device 1 provided by the first aspect, a traction motor for providing power for the towing trolley 2, and a traction track for limiting the movement of the towing trolley 2.
Therefore, when the automobile collision test is carried out, the traction motor provides power and drives the traction trolley 2 to move along the traction track, and the traction trolley 2 simultaneously drives the test trolley to move. After the traction trolley 2 impacts the energy absorption device 1, the test trolley is unhooked from the traction trolley 2 and impacts a target object through inertia, so that the automobile impact test is completed.
The traction trolley 2 comprises a body 21, wherein a brake baffle 25 matched with an energy absorption pipe 122 is arranged at the end part of the body 21; when the traction trolley 2 impacts the energy absorption device 1, the braking baffle impacts the piston rod 1221 on the energy absorption tube 122, so that the piston rod 1221 is compressed and absorbs energy.
The top surface of the body 21 is provided with a hanging mechanism 22, and the hanging mechanism 22 is connected with the test trolley through a hanging chain. The hanging mechanism 22 includes a first base 221 installed on the top surface of the body 21, in this embodiment, the first base 221 is approximately T-shaped, and an installation groove is provided at the middle position of the first base 221, a locking elastic sheet 223 is installed in the installation groove, in this embodiment, the locking elastic sheet 223 is approximately cross-shaped. In addition, a plurality of hanging pieces 222 are further arranged on the first base around the stop elastic piece 223, in this embodiment, each hanging piece 222 comprises a plurality of hanging rings and hanging brackets, and the hanging rings are symmetrically arranged on the left side and the right side of the stop elastic piece 223; the hanging bracket is disposed above the stopper spring 223. The stop spring 223 can fix the chain when the chain is hooked on the hooking member 222.
Therefore, the hanging pieces 222 are arranged around the stopping elastic sheet 223, the hanging rings can hang single or double side chains, and the hanging support can hang the whole chain. The tightness of the iron chain is ensured by changing the connection between the iron chain and the hanging piece 222, so that the test trolley is dragged. The iron chain is clamped on the first base 221 through the stop elastic sheet 223, so that the stable connection between the traction trolley 2 and the test trolley in the running process is ensured.
In addition, a rocker arm mechanism 24 is further provided on the top surface of the body 21, and the rocker arm mechanism 24 includes a rocker arm 241 rotatably connected to the top surface of the body and a cam 242 provided on the rocker arm 241; in the present embodiment, the swing arm 241 is rotatably coupled to the top surface of the body 21 by a stopper bolt 243; the cam 242 is located on the back of the body 21. One end of the swing arm 241 extends out of the body 21, and the frame 11 of the energy absorber 1 is provided with a stopper 17 engaged with the swing arm 241, in this embodiment, the stopper 17 is disposed along one side of the energy absorbing tube 122, and the length of the stopper 17 is longer than that of the energy absorbing tube 122.
The back of the body 21 is provided with a clamping mechanism 23 for clamping a steel wire rope, and the traction motor is connected with the clamping mechanism 23 through the steel wire rope. The clamping mechanism 23 includes a second base 231, and in this embodiment, the second base 231 is surrounded by four side plates, an upper side plate, a lower side plate, a left side plate, a right side plate, and a frame shaped like a Chinese character 'kou'. A fixing plate 232 is fixedly mounted on a lower end side plate of the second base 231. The clamping mechanism 23 further includes a push plate 233 and a push plate returning mechanism 234, the push plate 233 having first and second sides opposite to each other in the up-down direction, the first side cooperating with the cam 242, and third and fourth sides opposite to each other in the left-right direction, the second side being opposite to the fixing plate 232; the push plate resetting mechanism 234 includes two guide rods 2341 disposed on the left and right sides of the second base 231, and two sliders 2342 and two springs 2343 sleeved on the two guide rods 2341 respectively; the two sliders 2342 are respectively fixed on the third side and the fourth side of the push plate 233; one end of the spring 2343 is connected to the slider 2342, and the other end is connected to the lower end side plate of the second base 231.
Therefore, when the automobile collision test is carried out, the test trolley is connected with the traction trolley 2 through a chain, the traction motor is connected with the traction trolley 2 through a steel wire rope, and the traction motor provides power to drive the traction trolley 2 and the test trolley to move linearly. When pulling, the chain is first hooked to the hook 222 and is fixed by the stop spring 223. The cam 242 is rotated by rotating the rocker arm 241, and the cam 242 rotates and pushes the push plate 233 toward the fixed plate 232 to clamp the wire rope.
When the traction trolley 2 impacts the energy absorption device 1, the stop block 17 on the frame body 11 impacts one end, extending out of the body 21, of the rocker arm 241, so that the rocker arm 241 rotates relative to the body 21 and further drives the cam 242 to rotate, at the moment, the push plate 233 is not pushed by the cam 242 and moves in a direction far away from the fixing plate 232 under the action of the elastic force of the spring 2343, and therefore the steel wire rope is released, and the traction trolley 2 is separated from the traction motor.
When the traction trolley 2 impacts the energy absorption device 1 and stops, the test trolley continues to move forwards and drives the chain to overcome the elastic force of the stop elastic sheet 223 to separate from the hanging mechanism 22, so that the separation between the test trolley and the traction trolley 2 is realized, and the test trolley keeps inertia and hits a barrier at a required speed.
In addition, two pairs of guide wheels 26 are arranged below the traction trolley 2, and in the embodiment, the guide wheels 26 are arranged at the bottom of the body 21. The width of each pair of guide wheels 26 corresponds to the width of the traction track. Therefore, when the traction trolley 2 moves on the traction track at a high speed, the guide wheels 26 can prevent the traction trolley 2 from shaking in the movement process, so that the movement track and the final release position of the whole experiment are ensured.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (10)
1. The utility model provides an automobile collision energy-absorbing device, its characterized in that includes support body (11) and energy-absorbing mechanism (12) of setting on support body (11), energy-absorbing mechanism (12) include a plurality of energy-absorbing pipes (122) and energy storage bottle (121), wherein:
the energy absorption pipes (122) are communicated with the energy storage bottle (121) through pipelines (13);
the energy absorption pipe (122) comprises a cylinder body (1222) and a piston rod (1221) which is sleeved on the inner wall of the cylinder body (1222) in a sliding mode and can stretch out and draw back under stress.
2. Energy absorber according to claim 1, characterized in that hydraulic oil is provided in the cylinder (1222), and the cylinder (1222) is connected to the energy storage bottle (121) by means of a fuel line.
3. Energy-absorbing device according to claim 1, characterized in that the cylinder (1222) is filled with a buffer gas, and the cylinder (1222) is connected to the energy storage bottle (121) via a gas pipe.
4. An energy-absorbing device according to any one of claims 1-3, characterized in that several of said energy-absorbing tubes (122) are arranged in parallel.
5. Energy-absorbing device according to claim 4, characterized in that the energy storage bottle (121) is provided with a pressure gauge (14).
6. Energy-absorbing device according to claim 4, characterized in that a control valve (15) is provided on the energy storage bottle (121).
7. An automobile collision test device, which is characterized by comprising a traction trolley (2) driving a test trolley to move, an energy absorption device (1) as claimed in any one of claims 1-6, a traction motor for providing power for the traction trolley and a traction rail for limiting the movement of the traction trolley.
8. The automobile crash test device according to claim 7, characterized in that said traction carriage (2) comprises a body (21), a hitch mechanism (22) for hitching a chain, a clamping mechanism (23) for clamping a wire rope, and a rocker mechanism (24), wherein:
the hanging mechanism (22) is connected with the test trolley through a chain;
a stopping elastic sheet (223) for fixing the chain is arranged in the hanging mechanism (22);
the clamping mechanism (23) is connected with a traction motor through a steel wire rope;
the rocker arm mechanism (24) comprises a rocker arm (241) rotatably connected to the body (21) and a cam (242) provided on the rocker arm (241); the cam (242) is matched with the clamping mechanism (23) to clamp or release the steel wire rope;
one end of the rocker arm (241) extends out of the body (21), and a stop block (17) matched with the rocker arm (241) is arranged on a frame body (11) of the energy absorption device (1).
9. The vehicle crash test device according to claim 8, wherein said hitching mechanism (22) further comprises a first base (221) and a plurality of hitching members (222) provided on the first base (221) for hitching the chain, wherein:
the first base (221) is provided with an installation groove for installing a stop spring piece (223);
the hanging pieces (222) are uniformly arranged around the stopping elastic sheet (223);
when the chain is hung on the hanging piece (222), the stopping elastic sheet (223) can clamp the chain.
10. The vehicle crash test device according to claim 8 or 9, further comprising a pressure plate (18), wherein the energy absorption device (1) is connected to the traction track via the pressure plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663505.0U CN211364472U (en) | 2019-09-30 | 2019-09-30 | Automobile collision energy absorption device and collision test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663505.0U CN211364472U (en) | 2019-09-30 | 2019-09-30 | Automobile collision energy absorption device and collision test device |
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| Publication Number | Publication Date |
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| CN211364472U true CN211364472U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921663505.0U Active CN211364472U (en) | 2019-09-30 | 2019-09-30 | Automobile collision energy absorption device and collision test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682468A (en) * | 2020-12-22 | 2021-04-20 | 一汽解放汽车有限公司 | Anti-collision model car for test |
| CN114689343A (en) * | 2022-04-14 | 2022-07-01 | 中国汽车工程研究院股份有限公司 | Deceleration system for collision test |
-
2019
- 2019-09-30 CN CN201921663505.0U patent/CN211364472U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682468A (en) * | 2020-12-22 | 2021-04-20 | 一汽解放汽车有限公司 | Anti-collision model car for test |
| CN112682468B (en) * | 2020-12-22 | 2022-07-26 | 一汽解放汽车有限公司 | Anti-collision model car for test |
| CN114689343A (en) * | 2022-04-14 | 2022-07-01 | 中国汽车工程研究院股份有限公司 | Deceleration system for collision test |
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