CN211696972U

CN211696972U - Test device for testing energy impact of vehicle steering column

Info

Publication number: CN211696972U
Application number: CN202020298233.5U
Authority: CN
Inventors: 李帅
Original assignee: Beijing Electric Vehicle Co Ltd
Current assignee: Beijing Electric Vehicle Co Ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-10-16
Anticipated expiration: 2030-03-11

Abstract

The utility model discloses a test device for testing vehicle steering column energy impact, include: the device comprises a rack, a pipe column restraint tool and an energy application assembly. The vehicle steering column is suitable for being fixed on the column restraint tool; the energy application assembly is arranged on the rack and located above the pipe column restraint tool, the arrangement height of the energy application assembly on the rack is adjustable, and at least one part of the energy application assembly can fall relative to the rack to impact the vehicle steering pipe column. The test device can simulate the working condition that a driver impacts a steering wheel and a vehicle steering column, can accurately measure the collision performance of the vehicle steering column, greatly shortens the verification period of products, can timely find problems, analyze, feed back and track the problems, and simultaneously provides support for the improvement and the promotion of a steering system.

Description

Test device for testing energy impact of vehicle steering column

Technical Field

The utility model relates to a general machinery technical field particularly, relates to a test device for testing vehicle steering column energy impact.

Background

When a vehicle has a collision accident, a driver continuously moves forward due to inertia to impact a steering wheel, so that the chest and the head of the driver collide violently with the driver, and the driver is injured and killed. But car universal application conquassation formula steering column at present, when driver and steering wheel bump and reach a certain degree, steering column will take place the conquassation energy absorption to reduce the injury that chest and head and steering wheel bump brought, do not have test device to simulate the influence that the driver caused when strikeing to the steering wheel at present, there is the improvement space.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides a test device for testing vehicle steering column energy impact, this test device can simulate driver impact steering wheel and vehicle steering column's operating mode to can accurately record vehicle steering column's collision performance.

According to the utility model discloses a test device for testing vehicle steering column energy impact, include: a rack; the vehicle steering column is suitable for being fixed on the column restraint tool; the energy application assembly is arranged on the rack and located above the pipe column restraining tool, the arrangement height of the energy application assembly on the rack is adjustable, and at least one part of the energy application assembly can fall relative to the rack to impact the vehicle steering pipe column.

According to the utility model discloses a test device for testing vehicle steering column energy impact, this test device can simulate driver impact steering wheel and vehicle steering column's operating mode, can accurately record vehicle steering column's collision performance, greatly shortens the verification cycle of product to can in time discover problem and analysis feedback, trail the solution, provide support for steering system's improvement and promotion simultaneously.

In addition, according to utility model embodiment's a test device for testing vehicle steering column energy impact, can also have following additional technical characterstic:

according to some embodiments of the invention, the energy application assembly comprises: the control structure that drops with drop, the control structure that drops is connected on the rack, the control structure that drops is steerable drop adsorb on the control structure that drops or follow the control structure that drops downwards.

According to some embodiments of the invention, the drop control structure comprises: electromagnetic adsorption equipment, the piece that drops includes: a metal counterweight block.

According to some embodiments of the invention, the energy application assembly further comprises: the buffer structure is arranged at the lower end of the falling part and is vertically opposite to the vehicle steering column.

According to some embodiments of the invention, the buffer structure comprises: a foam board.

According to some embodiments of the invention, the rack comprises: the energy applying assembly is connected to the rack cross beam, and the rack cross beam is opposite to the rack longitudinal beam and can move up and down.

According to the utility model discloses a some embodiments, the both ends of rack crossbeam are provided with the sliding sleeve, the sliding sleeve is suitable for slidable ground cover to establish and corresponds on the rack longeron.

According to the utility model discloses a some embodiments, tubular column restraint frock includes: and the vehicle steering column is fixed behind the vertical constraint tool and is perpendicular to the horizontal plane.

According to the utility model discloses a some embodiments, tubular column restraint frock includes: and the vehicle steering column is fixed behind the inclination constraint tool and is obliquely arranged at an acute angle with the horizontal plane.

According to some embodiments of the present invention, the testing device further comprises: the impact head is arranged at the impact end of the vehicle steering column, and the impact head is vertically opposite to the falling part.

Drawings

Fig. 1 is a schematic structural diagram of a test apparatus according to an embodiment of the present invention;

fig. 2 is a schematic partial structure diagram of a testing apparatus according to an embodiment of the present invention.

Reference numerals:

the device comprises a testing device 100, a rack 1, a vehicle steering column 200, an energy applying assembly 3, a falling control structure 31, a falling part 32, a buffer structure 33, a rack longitudinal beam 11, a rack cross beam 12, a sliding sleeve 13, a vertical constraint tool 21, an inclined constraint tool 22 and an impact head 4.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

An experimental apparatus 100 for testing the energy impact of a vehicle steering column 200 according to an embodiment of the present invention is described below with reference to fig. 1-2.

According to the utility model discloses a test device 100 for testing vehicle steering column 200 energy impact can include: the device comprises a rack 1, a pipe column restraining tool and an energy applying assembly 3.

As shown in fig. 1, the vehicle steering column 200 is adapted to be fixed to a column restraint tool to simulate the vehicle steering column 200 being disposed on a vehicle, and the energy application member 3 is disposed on the rack 1 and above the column restraint tool, wherein at least a portion of the energy application member 3 may be dropped relative to the rack 1 to impact the vehicle steering column 200 to simulate the driver impacting the vehicle steering column 200, to achieve the simulation of the driver's transmission of impact energy to the steering wheel and the vehicle steering column 200, and therefore, the impact performance of the vehicle steering column 200 can be accurately measured.

Further, in order to achieve adjustability of impact energy to simulate impact effects on the vehicle steering column 200 at different impact forces by different drivers, the height of the energy application assembly 3 disposed on the stand 1 is made adjustable. That is, the magnitude of the impact force can be adjusted by adjusting the setting height of the energy application member 3 on the stand 1, that is, the simulated impact force is larger when the relative position of the energy application member 3 is higher, and the simulated impact force is smaller when the relative position of the energy application member 3 is lower. Therefore, the adjustment is more convenient, and the control of the impact force is more convenient.

According to the utility model discloses a test device 100 for testing vehicle steering column 200 energy impact, this test device 100 can simulate the operating mode that the driver impacted steering wheel and vehicle steering column 200, can accurately survey vehicle steering column 200's crashworthiness, greatly shorten the verification cycle of product to can in time discover the problem and analysis feedback, trail the solution, provide support for steering system's improvement and promotion simultaneously.

As shown in fig. 1, the energy application assembly 3 includes: a drop control structure 31 and a drop piece 32, the drop control structure 31 being attached to the stand 1 and the drop control structure 31 being capable of controlling the drop piece 32 to be sucked onto the drop control structure 31 or to fall downwards from the drop control structure 31. That is, before the impact is not simulated, the dropping part 32 is adsorbed on the dropping control structure 31 so as to adjust the impact force, and during the impact, the dropping control structure 31 controls the dropping part 32 not to be adsorbed on the dropping control structure 31, the dropping part 32 can drop downwards under the action of gravity and generate the impact force, and when the dropping part 32 impacts the vehicle steering column 200, the impact of the driver on the steering wheel and the vehicle steering column 200 is simulated. Therefore, the test is more convenient to control, and the test result can be more accurate.

According to some embodiments of the present invention, referring to fig. 1, the drop control structure 31 comprises: the electromagnetic adsorption device, which may be considered an electromagnet structure, and the dropping member 32 includes: a metal counterweight block. That is to say, when the metal counterweight does not drop, the electromagnetic adsorption device adsorbs the metal counterweight to the electromagnetic adsorption device through magnetic force, and when the collision is needed to be realized, the electromagnetic adsorption device only needs to make the magnetism of the electromagnetic adsorption device disappear, and then the metal counterweight can automatically drop. Thus, the control of the test is more convenient.

Further, the energy application assembly 3 further comprises: and the buffer structure 33, the buffer structure 33 is arranged at the lower end of the dropping piece 32, and the buffer structure 33 is vertically opposite to the vehicle steering column 200, wherein the dropping piece 32 is suitable for being impacted to the vehicle steering column 200 through the buffer structure 33 instead of being directly impacted, so that the buffer structure 33 can be used for simulating a steering wheel to play a role in buffering and transferring energy. Therefore, the authenticity and the accuracy of the impact test can be improved.

As a preferred embodiment, the buffer structure 33 includes: a foam board. The foam board can play a good buffering role, is light in weight, cannot substantially influence the impact test, and is low in manufacturing cost so as to reduce the cost of the test device 100.

As shown in fig. 1, the gantry 1 includes: the rack longitudinal beams 11 and the rack cross beams 12 arranged between the rack longitudinal beams 11 on the two sides are connected with the frame base at the lower ends of the rack longitudinal beams 11, so that the whole rack 1 can be stably placed, and the impact test can be stably carried out.

Wherein the energy application assembly 3 is connected to the gantry beam 12 and the gantry beam 12 is movable up and down relative to the gantry beam 11. Therefore, the relative height of the energy application assembly 3 can be adjusted by moving the gantry beam 12 to adjust the relative height of the gantry beam, so that the influence on the vehicle steering column 200 caused by different impact forces can be simulated, and the collision performance of the vehicle steering column 200 can be accurately measured.

Further, referring to fig. 1, two ends of the gantry beam 12 are provided with sliding sleeves 13, and the sliding sleeves 13 are adapted to be slidably sleeved on the corresponding gantry longitudinal beams 11. Namely, each rack longitudinal beam 11 is sleeved with a sliding sleeve 13, and the sliding sleeve 13 can slide up and down and be locked relative to the rack longitudinal beam 11, so as to adjust the relative height of the rack cross beam 12 and further adjust the relative height of the energy application assembly 3.

As shown in fig. 1, the pipe column restraining tool comprises: vertical restraint frock 21, vehicle steering column 200 are fixed and are set up with the horizontal plane is perpendicular behind vertical restraint frock 21 to influence that the simulation driver caused when just bumping into steering wheel and vehicle steering column 200 to vehicle steering column 200.

Further, as shown in fig. 2, the pipe column constraint tool further includes: the vehicle steering column 200 is fixed on the inclination constraint tool 22 and then is obliquely arranged at an acute angle with the horizontal plane, so that the influence on the vehicle steering column 200 when a driver eccentrically collides with a steering wheel and the vehicle steering column 200 is simulated.

That is to say, restrict the setting state of vehicle steering column 200 through setting up different tubular column restraint frocks, and then the produced influence of steering wheel and vehicle steering column 200 when receiving the striking of different situations to can accurately record the crashworthiness of vehicle steering column 200, provide support for the improvement and the promotion of a steering system.

When the vehicle steering column 200 is subjected to a head-on collision test, the vehicle steering column 200 fixed behind the vertical restraining tool 21 can be arranged below the energy applying assembly 3 so as to be convenient for the head-on collision test; in the offset collision test of the vehicle steering column 200, the vehicle steering column 200 fixed to the tilt restraint tool 22 may be disposed below the energy application unit 3 to facilitate the offset collision test.

As shown in fig. 1, the test apparatus 100 further includes: and the impact head 4, wherein the impact head 4 is arranged on the impact end of the vehicle steering column 200, and the impact head 4 is vertically opposite to the dropping piece 32. When the impact test is carried out, the falling part 32 can impact the impact head 4 to realize the impact on the vehicle steering column 200, wherein the impact head 4 simulates the impact point position, so that the collection and the transmission of the impact force are convenient, and the test result can be more accurate.

The test procedure of the test apparatus 100 is described below with reference to fig. 1-2:

firstly, fixing a vehicle steering column 200 on a vertical constraint tool 21 or an inclined constraint tool 22, tightening according to specified torque and marking, then analyzing the energy of a driver impacting a steering wheel according to CAE simulation, designing the weight of a falling part 32 and the falling height of the falling part 32 to ensure that the impact energy simulated by a test is consistent with the energy analyzed by the simulation, then adsorbing the designed falling part 32 on an electromagnetic adsorption device, sticking a buffer structure 33 below the falling part 32, adjusting the impact height according to the calculated height, then arranging a high-speed camera at the horizontal position of the vehicle steering column 200 to record the impact process, opening an electromagnetic switch of the electromagnetic adsorption device after the test is ready to finish the impact, finally, recording the damage sequence of the impact in the test process, checking the damaged part of the vehicle steering column 200 after the test, and recording other hidden problems, to ultimately derive the crash performance of the vehicle steering column 200.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A testing apparatus (100) for testing the energy impact of a vehicle steering column (200), comprising:

a stand (1);

the vehicle steering column (200) is suitable for being fixed on the column restraint tool;

the energy applying assembly (3) is arranged on the rack (1) and located above the pipe column restraining tool, the arranging height of the energy applying assembly (3) on the rack (1) is adjustable, and at least one part of the energy applying assembly (3) can fall relative to the rack (1) to impact the vehicle steering pipe column (200).

2. The testing device (100) for testing the energy impact of a vehicle steering column (200) according to claim 1, characterized in that the energy application assembly (3) comprises: the dropping control structure (31) and the dropping piece (32), the dropping control structure (31) is connected on the rack (1), and the dropping control structure (31) can control the dropping piece (32) to be adsorbed on the dropping control structure (31) or to drop downwards from the dropping control structure (31).

3. The testing device (100) for testing the energetic impact of a vehicle steering column (200) according to claim 2, characterized in that said drop control structure (31) comprises: an electromagnetic adsorption device, the drop piece (32) comprising: a metal counterweight block.

4. The testing device (100) for testing the energy impact of a vehicle steering column (200) according to claim 2, characterized in that the energy application assembly (3) further comprises: buffer structure (33), buffer structure (33) set up the lower extreme that drops piece (32), buffer structure (33) with vehicle steering column (200) are just right from top to bottom.

5. The testing device (100) for testing the energy impact of a vehicle steering column (200) according to claim 4, characterized in that the damping structure (33) comprises: a foam board.

6. The testing device (100) for testing the energy impact of a vehicle steering column (200) according to claim 1, characterized in that said stand (1) comprises: the energy application device comprises rack longitudinal beams (11) and rack cross beams (12) arranged between the rack longitudinal beams (11), wherein the energy application component (3) is connected to the rack cross beams (12), and the rack cross beams (12) can move up and down relative to the rack longitudinal beams (11).

7. The testing device (100) for testing the energy impact of a vehicle steering column (200) according to claim 6, characterized in that the two ends of the gantry beam (12) are provided with sliding sleeves (13), the sliding sleeves (13) being adapted to slidably fit over the corresponding gantry stringers (11).

8. The testing device (100) for testing the energy impact of a vehicle steering column (200) according to claim 1, wherein the column restraint tooling comprises: the vehicle steering column is characterized by comprising a vertical constraint tool (21), wherein the vehicle steering column (200) is fixed behind the vertical constraint tool (21) and is perpendicular to the horizontal plane.

9. The testing device (100) for testing the energy impact of a vehicle steering column (200) according to claim 1, wherein the column restraint tooling comprises: the vehicle steering column is characterized by comprising an inclination constraint tool (22), wherein the vehicle steering column (200) is fixed behind the inclination constraint tool (22) and is obliquely arranged at an acute angle with the horizontal plane.

10. The testing device (100) for testing the energy impact of a vehicle steering column (200) according to claim 2, further comprising: the impact head (4) is arranged on the impact end of the vehicle steering column (200), and the impact head (4) is vertically opposite to the falling part (32).