KR20170022221A

KR20170022221A - Bumper collision test facility

Info

Publication number: KR20170022221A
Application number: KR1020150116948A
Authority: KR
Inventors: 이영득; 이문용
Original assignee: 주식회사 성우하이텍
Priority date: 2015-08-19
Filing date: 2015-08-19
Publication date: 2017-03-02
Also published as: KR101751220B1

Abstract

A bumper impact test equipment according to an embodiment of the present invention includes a rail extending at an inclined angle set at a lower level from a set height and extending in a horizontal direction from a lower end of an inclined portion, A bumper detachably installed at a predetermined position in front of the bogie, a barrier fixed at a position corresponding to an end of the bogie rail so as to collide with the bumper, And lifting the rail along the rail.

Description

[0001] BUMPER COLLISION TEST FACILITY [0002]

The present invention relates to a bumper crash test apparatus capable of analyzing the performance of a bumper using a crash structure in which a bumper mounted on a bumper collides with a barrier at a predetermined speed while moving along a rail at a set height.

Generally, when developing an automobile, a car crash test is conducted to improve the reliability of the vehicle by establishing a safety performance against a vehicle crash during the development process.

Such an automobile crash test is a safety device after an automobile crash, and includes a test on the operation state of the seatbelt and the airbag, the deformation amount of the vehicle body, the movement of the dummy to detect the movement of the passenger, and the deformation of the bumper.

This collision test is a test that must be done for new vehicle verification, although the configuration of the test equipment is complex and costly.

In addition, since the bumper of the vehicle plays an important role in the stability of the vehicle, the performance of the vehicle is measured through various collision tests at the manufacturing stage, and the damage to the vehicle body is measured and reflected in the design of the vehicle.

On the other hand, studies on bumper collision test equipment which has less space limitation than existing equipments, short travel distance of bumper mounted bogie, and shortened test time are under study, It contains important elements.

In recent years, engineering sample inspection reports (ESIRs) have been strengthened, the performance requirements for bumpers have been increasing, and the range of validation elements for approval has been widening. Therefore, it is an important factor to carry out the collision test of the bumper by the bumper by designing the cross section of the bumper and the structure of the stay variously.

Conventionally, when a crash test of a bumper is performed using a barrier, a wire is connected to a bogie and a collision speed is adjusted by using a large motor. The travel distance of the bogie is about 160 meters, The test takes a long time.

It is an object of the present invention to provide a bumper crash test equipment which can reduce the space of a bumper mounted bogie, shorten the collision test time, and easily change the impact energy of the bumper .

As described above, the bumper impact test equipment according to the embodiment of the present invention includes: a rail extending at a predetermined angle from a predetermined height at an inclination angle set to a lower side and extending horizontally from a lower end of an inclined portion; A bumper detachably installed at a predetermined position in front of the bogie, a barrier fixed at a position corresponding to an end of the bogie to be collided with the bumper, And a bogie lifting portion for lifting the rail to a set height and dropping along the rail.

The rail may include an inclined rail formed with a predetermined inclination angle and a curvature, and a horizontal rail formed in a horizontal direction at a lower end of the inclined rail.

And a weight coupled to the truck with a predetermined unit weight.

The bumper may be detachably disposed in front of the bogie so as to collide with the barrier.

And a column member provided on one side of the barrier so as to collide with the bumper, and the column member can be installed in the barrier so as to be movable in the longitudinal direction of the bumper.

The bogie lifting unit may include a motor for moving the wire connected to the rear end of the bogie to the upper end of the rail, and a control unit for controlling the operation of the motor.

The bogie lifting portion can freely drop the bogie loaded on the upper end of the rail along the rail.

A fixing bracket disposed at an upper end of the rail, an upper roller rotatably disposed at the fixing bracket, and a winder roller disposed at a lower portion of the upper roller, wherein the wire is connected to the rear of the carriage, The rollers are wound on the winder rollers, and the motor rotates the winder rollers to wind the wirings to lift the rollers to the upper end of the rails.

The bumper impact test equipment according to an embodiment of the present invention includes a rail including a slope rail formed with a predetermined inclination angle and a curvature and a horizontal rail formed in a horizontal direction at a lower end of the slope rail, A bumper detachably mounted at a predetermined position in front of the bogie, a bumper fixed at a position corresponding to an end of the bogie, And a bogie lifting unit arranged to collide with the bumper and provided with a pillar member corresponding to the bumper, a bogie lifting unit for lifting the bogie to the upper end of the rail and dropping the bogie along the rail freely .

The barrier is fixed to the front end of the rail, and the pillar member can be arranged to be movable in the longitudinal direction of the bumper along a moving bracket disposed in the barrier.

In accordance with the present invention for achieving this object, it is possible to reduce the constraint of the test space by applying inclined rails and horizontal horizontal rails to utilize the potential energy, and the moving distance of the bogie- The test time can be shortened and the impact energy of the bumper can be easily varied.

1 is an overall perspective view of a bumper impact test equipment according to an embodiment of the present invention.
2 is a plan view of a bumper impact test apparatus according to an embodiment of the present invention.
3 is a front view of the bumper impact test apparatus according to the embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a plan view of a bumper impact test apparatus according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a bumper impact test apparatus according to an embodiment of the present invention. Fig.

1 and 2, the bumper 190 crash test equipment includes a barrier 100, a moving bracket 102, a pillar member 105, a wheel 110, a carriage 120, a frame 130, The weight member 140, the wire 150, the upper roller 165, the winder roller 145, the fixing bracket 160, the inclined rail 172, the horizontal rail 174, the fixing member 185, A bumper 190, and a control unit 199. As shown in Fig.

A rail 170 is formed on the frame 130 and the rail 170 includes the slope rail 172 and the horizontal rail 174. [

The inclined rail 172 is inclined downward along a curvature set to a lower level from a predetermined height and a lower end of the inclined rail 172 is connected to a rear end of the horizontal rail 174. [ The point where the horizontal rail 174 and the slant rail 172 meet is connected with a set curvature.

Here, the replacement is arranged to move back and forth along the slope rail 172 and the horizontal rail 174 through the wheel 110 disposed at both lower sides of the bogie 120.

A crash box 122 is disposed on both sides of the front end of the bogie 120 and the bumper 190 for impact test is attached to the front end of the crash box 122. In the upper part of the bogie 120, And the weights 180 are stacked in layers by the fixing member 185.

The worker can flexibly adjust the entire weight of the bogie 120 through the number of the weights 180. Here, the weight 180 is fixed to the fixing member 185 fixed on the carriage 120, and the weight 180 may have a structure in which the fixing member 185 is fitted.

The barrier 100 is fixed to the front ends of the horizontal rails 174 and the frame 130 and at a portion of the front surface of the barrier 100 facing the bumper 190, (105). The pole member can be attached to one side of the barrier in a pole shape.

As shown in the drawing, the column member 105 is arranged to be movable from the front of the barrier 100 along the moving bracket 102 in the form of a shaft extending from the lower part to the upper part, The barrier 100 may be fixed to the barrier 100. [

By varying the position of the column member 105 in this manner, the position at which the column member 105 collides with the bumper 190 can be easily adjusted.

Referring to FIG. 3, a fixing bracket 160 is fixed to an upper end of the inclined rail 172, and an upper roller 165 is disposed on the fixing bracket 160.

A winder roller 145 is disposed at the rear end of the frame 130, that is, below the fixing bracket 160, and the winder roller 145 is disposed to rotate by the motor 140.

One end of the wire 150 is connected to the rear of the carriage 120 and is wound on the winder roller 145 via the upper roller 165. In addition, the controller 199 is arranged to control the rotation of the motor 140.

When the motor 140 is rotated by the control unit 199, the winder roller 145 winds the wire 150 and the bogie 120 connected to the wire 150 is driven by the horizontal rail 174, And the bogie 120 is pulled up with the weight 180 and the bumper 190 to the upper end of the sloping rail 172. The sloping rail 172 has a sloping rail 172,

The control unit 199 releases the wire 150 from the winder roller 145 through the motor 140 to drop the carriage 120 freely.

The bumper 190 of the bogie 120 moves along the sloping rail 172 at a constant speed while falling down from the top to the bottom along the sloping rail 172, And collide with the column member 105 or the barrier 100.

The operator can lift the carriage 120 upward again along the horizontal rail 174 and the slope rail 172 and repeat the collision test again.

Referring to FIG. 3, the weight 180 is stacked on the carriage 120, and the fixing member 185 is disposed through the weight 180. The operator can easily adjust the impact energy applied to the bumper 190 by adjusting the number of the weights 180 mounted on the bogie 120. [

The bogie 120 includes an upper wheel 110 corresponding to an upper surface of the rail 170 and a lower wheel 110 corresponding to a lower surface of the rail 170, 110 to prevent the bogie 120 from being disengaged.

The column member 105 can be moved in the longitudinal direction of the bumper 190 along the moving bracket 102 and a fixing member 185 such as a fixing bolt can move the column member 105 and the moving member So that the column member 105 can be fixed to the barrier 100.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

100: barrier 102: moving bracket
105: pillar member 110: wheel
120: Truck 122: Crash box
130: frame 140: motor
145: Winder roller 150: Wire
160: Fixing bracket 165: Upper roller
170: rail 172: inclined rail
174: Horizontal rail 180: Weight
185: fixing member 190: bumper
199:

Claims

A rail extending at a set height at an inclined angle set at the bottom and extending horizontally from the lower end of the inclined portion;
A carriage disposed to be reciprocally movable along the rail;
A bumper detachably installed at a predetermined position in front of the bogie;
A barrier fixedly disposed at a position corresponding to an end of the horizontal rail so as to collide with the bumper;
A bogie lifting portion for lifting the bogie to a set height along the rail and dropping along the rail;
Wherein the bumper crash test equipment comprises:

The method of claim 1,
Wherein the rails are inclined rails formed with a predetermined inclination angle and curvature; And
A horizontal rail formed in a horizontal direction at a lower end of the inclined rail;
Wherein the bumper impact test equipment comprises:

The method of claim 1,
A weight coupled to the truck with a predetermined unit weight;
Wherein the bumper crash test equipment comprises:

The method of claim 1,
Wherein the bumper is detachably disposed in front of the bogie so as to collide with the barrier.

The method of claim 1,
And a column member provided on one surface of the barrier so as to collide with the bumper,
And the column member is detachably attached to the barrier.

The method of claim 1,
The bogie lifting unit includes:
A motor connected to a rear end of the bogie to move the bogie to an upper end of the rail; And
A control unit for controlling operation of the motor;
Wherein the bumper crash test equipment comprises:

The method of claim 6,
Wherein the bogie lifting portion freely drops the bogie loaded on the upper end of the rail along the rails.

The method of claim 6,
A fixing bracket disposed at an upper end of the rail;
An upper roller rotatably disposed on the fixing bracket; And
A winder roller disposed at a lower portion of the upper roller; Lt; / RTI >
The wire being connected to the rear of the carriage, being wound on the winder roller past the upper roller,
Wherein the motor rotates the winder roller to lift the bogie up to the upper end of the rail.

A rail formed of a slope rail having a predetermined inclination angle and a curvature and formed from an upper portion to a lower portion and a horizontal rail formed in a horizontal direction at a lower end portion of the slope rail;
A bogie arranged to be reciprocally movable on the rail, and to which a weight is removably arranged;
A bumper detachably installed at a predetermined position in front of the bogie;
A barrier which is fixed at a position corresponding to an end of the horizontal rail and is arranged to be able to collide with the bumper, and a column member which is collided with the bumper is installed on one surface; And
A bogie lifting portion for lifting the bogie to the upper end of the rail and dropping the bogie along the rail;
Wherein the bumper crash test equipment comprises:

The method of claim 9,
The barrier is fixed to the leading end of the rail,
Wherein the pillar member is disposed so as to be movable in the width direction of the truck along a moving bracket disposed in the barrier.