KR20040009073A - The Moving Motion Simulator of Suspension - Google Patents

Abstract

PURPOSE: An apparatus for simulating a motion of a real car used for a suspension test is provided to precisely inspect endurance of the real car by simulating inert force and roll motion of the real car when performing the suspension test. CONSTITUTION: A moving mass member(100) includes a front frame(110), a rear frame(110') and a horizontal frame(120), which are connected to each other in a rectangular shape. The horizontal frame(120) has an upper horizontal frame(120a) and a lower horizontal frame(120b). A coupler(121) is formed at an upper portion of the upper horizontal frame(120a). The upper horizontal frame(120a) is formed at side walls thereof with plural holes(122) and the lower horizontal frame(120b) is formed at side walls thereof with plural coupling holes. Suspension supporting sections are inserted into the holes(122) and the coupling holes.

Description

Vehicle motion reproducing device for suspension test {The Moving Motion Simulator of Suspension}

The present invention relates to an actual vehicle motion reproducing apparatus for suspension test, and more particularly, because of guide rails and bearings, the inertia force and roll motion generated during driving can be reproduced to more accurately test the durability of the vehicle to satisfy consumer conditions. The present invention relates to an actual vehicle motion reproducing apparatus for suspension test for developing a suspension.

In general, a suspension of a vehicle composed of a cross member, a lower arm, an upper control arm, a strut, and the like is coupled to vibration joints at each joint to absorb a plurality of complex loads transmitted from a wheel to perform a vibration suppression function to suppress vibration.

These bushes are subjected to both positive and torsional loads at the same time, thereby rapidly lowering the durability of a particular site, and the durability of the bush has a significant effect on the performance degradation of the vehicle as time passes.

Therefore, the bush secures the test data through the endurance test for the positive load in the forward direction and the torsional load in the shear direction by the endurance test device, etc., and can be used as useful information for improving the durability before applying it for vibration prevention of the suspension. do.

The durability test apparatus described above is a perspective view of a conventional general excitation apparatus, as shown in FIG.

First, an exciter 10 coupled to a knuckle of a suspension part, a first connecting member 20 disposed in a transverse direction so as to be connected to the lower end of the vibrator 10 and rotated, and the first connecting member 20. And the lower end is connected to the first operating rod 21, which is rotated with the first supporting member 22, and connected to one end of the first operating rod 21, and is rotated. The first hydraulic cylinder 23 is rotated with the support frame 24, and the first plate 70 and the second plate 80 are connected to both sides of the rotary 10 so as to rotate in the front-rear direction. Coupling member 90 connecting the central portion of the first plate 70 and the second plate 80, the second connecting member 30 is connected to the coupling member 90, and the second connecting member 30 Rotating with the end of the), the lower end is connected to the second operating rod 31 which is rotated with the second support member 32, the work of the second operating rod 31 It is rotated in connection with the second support frame 34 and the second hydraulic cylinder (33) made of, the first plate 70 and the second plate 80, the lower end of the rotating member (50) and Is connected and rotated, the upper end of the rotating member 50 is connected to the third connecting member 40, the end is connected to the third operating rod 42, the third hydraulic cylinder 43 is connected to the excitation Reproducing and testing the braking motion in the machine, and is rotated by being connected to the torsion support 60 in the lower center of the rotating member 50, the torsion support 60 is connected to the third support frame 44, Since it is connected to the fourth hydraulic cylinder and rotated up and down inside the third supporting frame, the exciter 1 reproduces each motion and simultaneous multiple motions in the transverse direction, the front and rear directions, and the vertical direction. To do endurance tests.

On the other hand, the durability test apparatus currently in use for the suspension is mainly used for floating type (floating type), semi-floating type, fixed type (fixed type).

First, the floating type connects a vibrator having a hydraulic cylinder to suspension portions formed on both front and rear sides of a vehicle body (white body) to which no equipment is attached at all, thereby generating a load coming from the actual vehicle by the vibrator. It is to detect the stress weak part of the vehicle body and the overall suspension portion.

In addition, the one side floating type is a system in which the exciter having the floating type hydraulic cylinder is formed in the suspension on both front sides, and the rear suspension part is supported by the fixing member and inspected.

Meanwhile, in the case of the fixing type, the vehicle body, or a jig corresponding thereto, is fixed and operated by inspecting an exciter connected to the suspension.

In the case of the floating type described above, the durability test close to the actual vehicle can be reproduced, but the vehicle body is required and measurement for low vibration is impossible.

In addition, in the case of one side floating type, this also requires a vehicle body and has the disadvantage that only one side of the front and rear inspection and correct position.

In addition, in the case of the fixed type, it is possible to test with a jig fixing device without a vehicle, but the inertial force of the vehicle cannot be reproduced, and there is a limitation in using data of similar vehicles.

As described above, the conventional durability test apparatus cannot reproduce the inertia force and the rotational motion generated during actual driving, there is a problem that a vehicle body is required, and data for similar vehicles cannot be used.

In order to solve the problems described above, the present invention suspension vehicle motion reproducing apparatus can be tested without the vehicle body, reproduce the inertial force and roll motion of the actual vehicle state, and more accurately inspect the durability of the vehicle The objective is to reduce the initial development time by using data from similar vehicles.

1 is a perspective view of a conventional excitation device coupled to the suspension portion.

Figure 2 is a combined perspective view of the actual vehicle motion reproduction apparatus for the present inventors suspension test.

Figure 3 is an exploded perspective view of the actual vehicle motion reproducing apparatus for the inventors suspension test.

4 is a cross-sectional view of the combination of the bearing and the bearing coupling.

5 is a perspective view of a general suspension and a suspension according to the invention.

Explanation of symbols on the main parts of the drawings

100-moving mass member 110-front frame

110 '-Rear frame 111, 111'-Bearing coupling hole

120-Horizontal Frame 120a-Top Horizontal Frame

120b-Bottom horizontal frame 121-Loop

122-Feed hole 123-Fastener

130-Bearing 131-Head

132-Body

132 b-rotating part 133-thread

140-Bearing coupling member 141-Through hole

142-Ball Bearing 143-Washer

144-Nut 150-Guide Element

150a-first guide member 150b-second guide member

151-Protrusion 160-Guide Rail

161-Guide Groove 170-Fixed Plate

170a-1st fixed plate 170b-2nd fixed plate

180a-first fixed support member 180b-second fixed support member

190-Weight adjustment part 200-Suspension support part

210-first cross member support member 220-second cross member support member

230-third cross member support member 240-strut support member

250-Upper control arm support member 300-Suspension

310-Strut Assembly 310a-Shock Absorber

310b-Coil Spring 320-Upper Control Arm

330-Knuckle 340-Excitement

350-Tie Rod 370-Steering Gearbox

380-Lower Control Arm 390-Crossmember

In order to achieve the above object, the present invention provides a moving mass member, a first fixing plate coupled to the front side of the moving mass member, and a second fixing plate coupled to the rear side of the moving mass member. The moving part is made of a combination, the moving mass member is formed of a plurality of horizontal frame, the front frame is coupled to the end of the horizontal frame, and formed on the other end of the front frame, the rear frame is coupled to the horizontal frame, A bearing coupling hole formed in the front and rear frames, a bearing coupled to the bearing coupling hole, a bearing coupling member coupled to the bearing end, a guide member coupled to the bearing coupling member, and a guide rail for sliding the guide member. And, the guide rail is made of a fixing member which is fixed, the first fixing The first fixed support member is coupled to the rate, and the second fixed support member is missing from the second fixed plate, thereby achieving the object of the present invention.

Hereinafter, a suspension vehicle motion reproducing apparatus for suspension test of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of the present invention, the actual vehicle motion reproduction apparatus for suspension test, Figure 3 is an exploded perspective view of the actual vehicle motion reproduction apparatus for the suspension test of the present invention, Figure 4 is a cross-sectional view of the combination of the bearing and the bearing coupling, Figure 5 is a general suspension and A perspective view of a suspension according to the invention.

First, the moving mass member 100 connects the corner portions of the front frame 110 and the rear frame 110 'with the horizontal frame 120 to have a rectangular shape.

The horizontal frame 120 is composed of an upper horizontal frame 120a and a lower horizontal frame 120b.

A ring 121 is formed on the upper side of the upper horizontal frame 120a to be coupled thereto.

The ring 121 may be formed in the upper center and the end of the upper horizontal frame 120a, it is preferable to configure so that there is no deviation in the center of gravity.

Side of the upper horizontal frame (120a) to form a plurality of transfer holes (122).

In addition, a plurality of fastening holes 123 are formed to be coupled to the side of the lower horizontal frame 120b with screws.

The suspension support part 200 is coupled to the transfer hole 122 and the fastening hole 123.

Meanwhile, bearing coupling holes 111 and 111 'are formed at the center of the front frame 110 and the rear frame 110' so that the bearing 130 is installed around the center of gravity of the vehicle.

The bearing 130 is inserted into the bearing coupling holes 111 and 111 ′, and the bearing coupling member 140 is coupled to the end of the bearing 130.

Here, the bearing 130 has a head 131 in the shape of a bolt, has a body 132 of a cylindrical shape, the body 132 is a coupling portion 132a and the rotating portion 132b It consists of.

The rotating part 132b is formed to have a diameter smaller than that of the coupling part 132a, and an end of the rotating part 132b forms a thread 133.

On the other hand, the bearing coupling member 140, the through hole 141 is formed in the central portion, and the ball bearing 142 is rolled in the through hole 141.

In addition, the bearing coupling member 140 and the guide member 150 are coupled to each other, and the protrusion 151 is formed inside the guide member 150.

The guide member 150 is formed of a first guide member 150a and a second guide member 150b, coupled to both sides of the bearing coupling member 140, and the bearing coupling member 1.

It is preferable to allow the bearing 130 to be fastened to the center of the 40.

In addition, the guide rail 150 is formed so that the guide rail 160 slides.

Guide groove on the guide rail 160 to be inserted into the guide rail 160 to be transported

161 is formed.

The guide rail 160 is coupled to the first fixing plate 170a and the second fixing plate 170b formed in front and rear of the moving mass member 100.

Here, the coupling between the bearing coupling member 140 and the guide member 150 and the coupling between the guide rail 160 and the fixing plates 170a and 170b are most preferably fastened with bolts and nuts.

In addition, the weight adjusting unit 190 is formed inside the moving mass member 100 to adjust the weight of the actual vehicle.

On the other hand, the suspension support portion 200, the fastening hole formed in the lower horizontal frame (120b)

The first cross member support member 210 coupled to the 123, the second cross member support member 220 and the third cross member support member 230, the upper horizontal frame 120a and the lower horizontal The strut support member 240 and the upper control arm support member 250 coupled to the frame 120b are formed.

Here, the strut support member 240 and the upper control arm support member 250 are integrally coupled to each other.

Referring to the assembly state of the actual vehicle motion reproducing apparatus for the suspension test of the present invention configured as described above are as follows.

The bolt is assembled to the fastening hole 123 formed in the guide rail 160 and coupled to the first fixing plate 170a formed at the front and the second fixing plate 170b formed at the rear.

The first fixed plate 170a is coupled to the first fixed support member 180a formed at the front side, and the second fixed plate 170b is welded to the second fixed support member 180b and coupled with bolts and nuts. Do it.

Meanwhile, the moving mass member 100 couples both ends of the upper horizontal frame 120a to the upper edge portion of the front frame 110 formed at the front side and the rear frame 110 'formed at the rear side, and at the lower edge portion. Combine both ends of the lower horizontal frame (120b).

In addition, a plurality of frames are coupled to the inside of the moving mass member 100 to form a weight adjusting unit 180.

The strut support member 240 and the upper control arm support member 250 are coupled to the plurality of transfer holes 122 formed on the side of the horizontal frame 120 by adjusting bolts and nuts.

In addition, the first horizontal member support member 210, the second cross member support member 220, and the third cross member support member 230 are coupled to the lower horizontal frame 120b.

Meanwhile, the bearing 130 is inserted into the bearing coupling holes 111 and 111 'formed at the centers of the front frame 110 and the rear frame 110', and the pivoting portion 132b of the bearing 130 is inserted. After inserting the bearing coupling member 140 in, insert the washer 143 and then nut (144)

Fasten with).

Both sides of the bearing coupling member 140 have a first guide member 150a and a second guide member.

Combine 150b.

The suspension support unit 200 is coupled to both ends, and the moving mass member 100, which combines the bearing 130 and the guide member 150 in front and rear, is connected to the crane 121 at the upper end, and the guide member ( The protrusion 151 formed on the 150 is inserted from the top to be fastened to the guide groove 161 formed on the guide rail 160.

On the other hand, the configuration of the general suspension and the coupling state of the suspension support member of the present invention will be described as follows.

The strut assembly 310 having the shock absorber 310a and the coil spring 310b is coupled to the strut support member 240.

In addition, the upper control arm 320 formed outside the coil spring 310b is fixed to the upper control arm support 250, and the upper control arm 320 is coupled to the nut 330.

The side of the knuckle 330 is coupled to the exciter 340, one end is coupled to the tie rod 350.

The coupling portion of the tie rod 350 and the knuckle 330 is connected by a ball joint.

On the other hand, the tie rod 350 is connected to the steering gear box 370, which is also connected to the ball joint 360.

The steering gear box 370 is connected to the cross member 390.

The cross member 390 is also connected to the tie rod 350 and the lower control arm 380, the first cross member support member 210 and the second cross member support member 220 and the third cross member The cross member 390 is coupled to the support member 230.

Here, the cross member 390 and the cross member support members 210, 220, 230 are connected by a rubber bush.

Meanwhile, a suspension composed of an upper control arm, a cross member, a strut assembly, a lower control arm, and the like is the same as that of a conventional vehicle, and is selectively tested by combining a knuckle with an exciter, and thus, detailed description of the suspension part is omitted. Shall be.

Therefore, the general suspension structure configured as described above is coupled to the suspension support of the present invention, coupled to the cross member support member according to the size and type, and coupled to adjust the position of the strut support member and the upper control arm support member which are transportable. do.

Referring to the operation state for the endurance test by combining the suspension of the general vehicle configured as described above to the actual vehicle motion reproducing apparatus for the suspension test of the present invention as follows.

The hydraulic cylinder connected to the vibrator by coupling one side of the knuckle of the suspension to the vibrator having the hydraulic cylinder is connected to the hydraulic pump through the hydraulic line to generate the hydraulic pressure according to the control signal of the controller to supply hydraulic pressure to the hydraulic cylinder, As a result, vibration is transmitted to the suspension connected to the suspension support.

For this reason, the present invention is carried out by the moving mass member to the load transmitted through the ground during the actual driving of the vehicle without the vehicle body, guided up and down in the fixed member formed in front and rear by the guide member formed on the moving mass member, It is rotated from side to side due to the bearing, so that the durability can be measured by reproducing the inertia force and roll movement of the actual vehicle in the module unit generated through the ground during the actual driving of the vehicle.

Due to the actual vehicle motion reproducing apparatus for the suspension test of the present invention as described above, it is possible to test even without the body required in the conventional durability test apparatus, can reproduce the inertial force of the actual vehicle state, the initial development period using the data of similar vehicles It can shorten and measure the low vibration transmitted from the side.

As described above, the present invention has the following effects due to the actual vehicle motion reproducing apparatus for the suspension test.

First, the moving mass member formed of the horizontal frame and the front and rear frames can test the durability of the vehicle suspension without securing the vehicle.

Second, the guide member and the guide rail are formed in the front and rear frames to be transported up and down with no friction, so that the durability against the inertia force of the actual vehicle can be examined.

Third, the bearings are coupled to the moving mass member and the fixed plate to move from side to side to reproduce the roll motion of the actual vehicle.

Fourth, due to the guide rail and the bearing, it is possible to test the durability by reproducing the vibration transmitted to the vehicle.

Fifth, since a plurality of transfer holes are formed in the horizontal support, the suspension support can be moved, so that the durability of the vehicle having various types of suspensions can be tested.

Sixth, a ring is formed on the upper portion of the moving mass member, so that it can be conveniently used during assembly, disassembly and movement.

Seventh, since the weight adjustment unit is formed inside the moving mass member, the weight can be adjusted to the actual vehicle according to each vehicle, so that the motion of the suspension can be more accurately reproduced.

In other words, it is possible to test the durability without the body, test the durability of the inertia force of the vehicle due to the friction of the vertical movement of the guide rail and the left and right rotation of the bearing, and to test the durability of the vehicle with various types of suspension. Due to the weight adjustment part, it can be adjusted and tested according to the weight of the car body.

As described above, the present invention, the actual vehicle motion reproducing apparatus for the suspension test, by improving the problems of the various types of durability test apparatus used in the prior art, it is possible to more accurately test the safety of the vehicle, the development of the automotive industry and the same industry It is a very useful invention that can greatly contribute to the technology of.

Claims (4)

Moving mass member, The first fixing plate is coupled to the front of the moving mass member, the second fixing plate is coupled to the rear, A suspension support part disposed on both sides of the moving mass member; A suspension is connected to the suspension support and is made of an exciter coupled to the suspension; The moving mass member, A horizontal frame formed of a plurality; A front frame coupled to the horizontal frame end; It is formed on the other end of the front frame, made of a rear frame coupled to the horizontal frame, Bearing coupling holes formed in the front and rear frames; A bearing coupled to the bearing coupling hole; A bearing coupling member coupled to the bearing end; A guide member coupled to the bearing coupling member; A guide rail for sliding the guide member; The guide rail is made of a fixing member is fixed; A first fixing support member is coupled to the first fixing plate, The second fixed plate is coupled to the second fixed support member, the actual vehicle motion reproducing apparatus for a suspension test. The method of claim 1, The suspension support portion, A first cross member support member, a second cross member support member, and a third cross member support member coupled to a lower end of the horizontal frame, A strut support member and an upper control arm support member coupled to the upper and lower ends of the horizontal frame; The strut support member and the upper control arm support member are integrally formed, By forming a plurality of transfer holes in the horizontal frame, The actual vehicle motion reproducing apparatus for suspension test, characterized in that the position adjustment of the strut support member and the upper control arm support member in the transfer hole. The method according to claim 1 or 2, Suspension test vehicle actual motion reproducing apparatus, characterized in that the ring is formed on the top of the moving mass member. The method according to claim 1 or 2, The suspension vehicle motion reproducing apparatus for a suspension test, characterized in that a weight adjusting portion is formed inside the moving mass member.