CN102645313B - Test car rollover prevention device in crash test - Google Patents

Abstract

The invention relates to an auxiliary tool in a collision test, in particular to an anti-turnover device for a test vehicle which prevents the test vehicle from being bumped over during the collision test. The anti-rollover device for the test vehicle in the crash test includes a chassis, wheels positioned on both sides of the chassis, and a support column positioned at one end of the chassis to prevent the chassis from turning over. Both sides of the chassis are provided with a lifting mechanism, and the lifting mechanism The top is provided with a clamping mechanism for fixing on the test vehicle. The lifting mechanism includes a base rod set and a support rod set movably connected with the base rod set. The bottom end of the base rod set is hinged to both sides of the chassis to support The top of the rod group is hinged with the clamping mechanism. The invention is applicable to the crash test of the whole vehicle, and can prevent the crashed test vehicle from overturning, avoid damage to internal test instruments, and not affect test results.

Description

Test vehicle anti-rollover device in crash test

technical field

The invention relates to an auxiliary tool in a collision test, in particular to an anti-turnover device for a test vehicle which prevents the test vehicle from being bumped over during the collision test.

Background technique

During the crash test of the test vehicle, it is necessary to place the collided test vehicle on the operating platform, and perform a side collision on the collided test vehicle. When the collided vehicle is hit by the side, it is easy to cause the collided test vehicle to overturn, and the collided test vehicle will be turned over, which will damage the internal test equipment, not only make the test data unable to be extracted, the test fails, but also increase the cost of the crash test.

Be as Chinese patent publication number: CN1544277A, a kind of automobile crash test device disclosed on November 10, 2004, this device is made up of fixed wall, track, bumper, release mechanism, guiding mechanism and tackle. The pulley is connected with the release mechanism and the guide mechanism, and the test vehicle is controlled between the guide mechanisms. Although this device can combine the whole vehicle crash test and the car simulated crash test on one test bench, it cannot avoid the test car from being overturned after being hit. Data cannot be extracted, the test fails, and the cost of the crash test is increased.

Contents of the invention

The present invention mainly aims at the problems that the side impact of the existing collision test may easily cause the collided test vehicle to turn over, cause damage to the internal test equipment, increase the test cost, etc. The anti-rollover device of the test vehicle that is damaged by the internal test equipment and does not affect the test results.

The purpose of the present invention is mainly achieved by the following scheme: a test car anti-turnover device in a crash test, including a chassis, wheels positioned on both sides of the chassis and a support column positioned at one end of the chassis to prevent the chassis from turning over, the Both sides of the chassis are provided with a lifting mechanism, and the top of the lifting mechanism is provided with a clamping mechanism for fixing on the test vehicle. The lifting mechanism includes a base rod group, a support rod group that is movably connected with the base rod group, The bottom end of the base rod group is hinged to both sides of the chassis, and the top end of the support rod group is hinged to the clamping mechanism. In the side impact test, the side of the crashed vehicle needs to be impacted, and the anti-rollover device is placed on the opposite side of the impacted side of the test vehicle. The base rod group is movably connected with the support rod group, the bottom end of the base rod group is hinged with the chassis of the anti-turnover device, the top of the support rod group is hinged with the clamping mechanism, and the rotation of the base rod group drives the rotation of the support rod group at the same time, adjusting the base rod group and the support The height of the rod group in the vertical direction. Both sides of the chassis of the anti-turnover device are equipped with a lifting mechanism and a clamping mechanism. The clamping mechanism is used to fix the vertical threshold of the crashed test vehicle. According to the height of the threshold of different models, the clamping mechanism is adjusted by the lifting mechanism. Fix the clamping mechanisms on both sides of the chassis on the thresholds of the front and rear of the crashed test vehicle respectively. When the crashed test car is hit from the side, the test car will flip over. During the overturning process of the test vehicle, it will first push the anti-overturn device to translate, and the wheels on both sides of the chassis of the anti-overturn device can reduce the friction force of translation, reduce the test error of the collision test, and avoid affecting the test data; The test vehicle will continue to drive the anti-rollover device to turn over. At this time, the support column on the chassis of the anti-rollover device is in contact with the ground and supports the chassis to prevent the chassis and the lifting mechanism and clamping mechanism on the chassis from turning over, and then support the bumped object. The body of the test vehicle prevents the crashed test vehicle from turning over, protects the test instruments inside the test vehicle, and avoids instrument damage.

Preferably, a crossbeam is arranged between the base rod group and the support rod group, the base rod group includes a first base rod and a second base rod, the support rod group includes a first support rod and a second support rod, and the first base rod The top end of the bar, one end of the crossbeam and the bottom end of the first support rod are hinged to form a first hinge point; a section of chute is arranged on the crossbeam far away from the first hinge point, and the crossbeam is far away from the first hinge point. One end is located between the second base rod and the second support rod, the top end of the second base rod is hinged to the bottom end of the second support rod to form a second hinge point, and the second hinge point is slidingly connected with the chute; in the chute One end away from the first hinge point is provided with a fastening bolt. The top end of the first base rod, one end of the crossbeam, and the bottom end of the first support rod are hinged to form the first hinge point, and the second hinge point formed by the hinge connection of the top end of the second base rod and the second support rod can be on the crossbeam. Slide in the chute. The sliding range of the second hinge point is adjusted by fastening bolts in the chute, thereby adjusting the distance between the first hinge point and the second hinge point. When the distance between the first hinge point and the second hinge point decreases, the vertical height of the lifting mechanism increases; when the distance between the first hinge point and the second hinge point increases, the vertical height of the lifting mechanism increases. height is reduced.

Or, the base rod group includes a first base rod and a second base rod, and the support rod group includes a first support rod and a second support rod, and the first base rod, the second base rod, the first support rod and the second support rod Grooves are provided on the support rods, the first base rod and the second base rod are arranged crosswise and hinged on the grooves at the intersection, the first support rods and the second support rods are arranged crosswise and at the intersection The groove is hinged; the top end of the first base rod is hinged with the bottom end of the second support rod, and the top end of the second base rod is hinged with the bottom end of the first support rod; a height is set between the clamping mechanism and the chassis. Adjust screw. Grooves can also be set on the first base rod, the second base rod, the first support rod and the second support rod, and the first base rod and the second base rod are cross-hinged, and the first support rod and the second support rod are cross-hinged. The hinge point between the first base rod and the second base rod can slide in the groove on the first base rod and the second base rod, and the hinge point between the first support rod and the second support rod can be The operator can secure these two hinge points by sliding in the slots on the rod and the second support rod. Then the top of the first base bar is hinged with the bottom end of the second support bar, the top end of the second base bar is hinged with the bottom end of the first support bar, and the clamping mechanism is adjusted by the height adjustment screw between the clamping mechanism and the chassis Fasten the hinge point between the first base rod and the second base rod, and the hinge point between the first support rod and the second support rod, so that the lifting mechanism supports the clamping mechanism.

Preferably, the clamping mechanism includes a horizontally arranged base, a fixed clamping arm, a movable clamping arm parallel to the fixed clamping arm, and a lever for adjusting the distance between the movable clamping arm and the fixed clamping arm. Adjusting the bolt, the fixed clamping arm is vertically fixed on the base, the base is provided with a horizontal chute, and the movable clamping arm is slidably connected with the base through the horizontal chute. The clamping mechanism includes a base, a fixed clamping arm, a movable clamping arm and an adjusting bolt. The fixed clamping arm is vertically fixed on the base, and a horizontal chute is arranged on the base, and the movable clamping arm can slide in the chute To adjust the distance between the movable clamping arm and the fixed clamping arm, and clamp and fix it by adjusting the bolt. Loosen the adjusting bolt, place the threshold of the crashed test vehicle between the movable clamping arm and the fixed clamping arm, use the adjusting bolt to adjust the distance between the movable clamping arm and the fixed clamping arm, and use the movable clamping arm And the fixed clamping arm clamps the threshold of the test vehicle.

As a preference, both the bottom end of the first base rod and the bottom end of the second base rod are hinged to the side of the chassis, and the top ends of the first support rod and the second support rod are connected to the base of the clamping device. hinged. Both the bottom end of the first base rod and the bottom end of the second base rod are hinged with the side of the chassis, the top end of the first support rod and the top end of the second support rod are hinged with the base of the clamping device, and the clamping mechanism is connected with the lifting mechanism through the lifting mechanism. The chassis is connected. During the process of preventing the test vehicle from turning over by the anti-turnover device, the chassis supports and prevents the clamping mechanism through the lifting mechanism.

Preferably, the support column is vertical to the chassis and is fixedly arranged at a corner of one end surface of the chassis, and a diagonal brace is provided between the support column and the chassis. The anti-rollover device is fixed on the opposite side of the side of the test vehicle that was hit, and the support columns are located at two corners of one end face away from the test vehicle. When the side of the test vehicle is hit, the test vehicle turns over towards the side of the anti-rollover device and drives the anti-rollover device to rotate, the side of the anti-rollover device close to the test vehicle is raised, and the support column on the side away from the test vehicle touches the ground and The chassis of the anti-rollover device and the lifting mechanism and clamping mechanism on the chassis are supported, and then the body of the test vehicle is supported to prevent the test vehicle from continuing to turn over. Diagonal braces are set between the support column and the chassis to enhance the connection strength between the support column and the chassis and prevent the support column from breaking.

As a preference, the bottom end of the support column is provided with an anti-skid pad. When the bottom end of the support column touches the ground, the anti-skid pad prevents the bottom end of the support column from directly rubbing against the ground, and only the anti-skid pad needs to be replaced without replacing the support column.

Therefore, the test car anti-turnover device in the crash test of the present invention has the following advantages: 1, the anti-turnover device is installed on the opposite side of the test car by the bumped side, and the clamping mechanism of the anti-turnover device is used to be fixed on the vehicle body. When the side of the test vehicle is hit, the test vehicle pushes the chassis of the anti-rollover device to move. The wheels on both sides of the chassis can reduce friction and avoid affecting the data of the crash test. When the test vehicle drives the anti-rollover device to overturn, the chassis of the anti-rollover device The support column on the side far away from the test vehicle can support the ground, and then support the test vehicle body, prevent the test vehicle from turning over, protect the test instruments inside the test vehicle, and avoid instrument damage; For support, adjust the height of the lifting mechanism to match the models of different heights; 3. The clamping mechanism includes a base, a fixed clamping arm, and a movable clamping arm. The base is connected with the lifting device, and the movable clamping arm can Move in the horizontal chute on the seat, and control the distance between the fixed clamping arm and the movable clamping arm through the fastening bolts, and use the movable clamping arm and the fixed clamping arm to clamp the threshold of the test vehicle; 4. Support column A diagonal brace is set between the support column and the chassis to increase the connection strength between the support column and the chassis, and avoid the support column from breaking;

Description of drawings

Accompanying drawing 1 is a kind of structural representation of the present invention in embodiment 1;

Accompanying drawing 2 is a kind of structural representation of the present invention in reverse state in embodiment 1;

Accompanying drawing 3 is the structural representation of lifting mechanism in embodiment 1;

Accompanying drawing 4 is a kind of structural representation of the present invention in embodiment 2;

Accompanying drawing 5 is the structure diagram of lifting mechanism in embodiment 2.

Illustration: 1-chassis, 2-wheels, 3-support column, 4-lifting mechanism, 41-first base rod, 42-second base rod, 43-first support rod, 44-second support rod, 45-first hinge point, 46-second hinge point, 5-beam, 51-sliding slot, 6-fastening bolt, 7-slot, 8-height adjustment screw, 9-base, 10-fixed clamping arm , 11-movable clamping arm, 12-adjusting bolt, 13-horizontal chute, 14-slant brace, 15-anti-slip pad, 16-test vehicle.

Detailed ways

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Embodiment 1: As shown in Figure 1, a test car anti-rollover device in a crash test includes a rectangular chassis 1 and four wheels 2, the four wheels 2 are divided into two groups, and the two groups of wheels 2 are respectively installed on the chassis 1 on both sides. Both sides of the chassis 1 are equipped with a lifting mechanism 4, and the lifting mechanism 4 is connected with a clamping mechanism. The clamping mechanism is composed of a base 9, a fixed clamping arm 10 and a movable clamping arm 11. The fixed clamping arm 10 is vertically fixed on the base 9, and a horizontal chute 13 is provided on the base 9 for movable clamping. The arm 11 is parallel to the fixed clamping arm 10 , and the movable clamping arm 11 can slide in the horizontal chute 13 . The distance between the movable clamping arm 11 and the fixed clamping arm 10 is regulated by the adjusting bolt 12, and the movable clamping arm 11 and the fixed clamping arm 10 are used together to clamp the threshold of the bumped test vehicle 16. When the threshold of the test vehicle 16 is inconvenient for the clamping mechanism to clamp, vertical fixed blocks can be welded at the positions of the front and rear doors of the test vehicle 16, and the movable clamping arm 11 and the fixed clamping arm 10 are used to clamp the fixed block for The anti-rollover device is fixed on the test car 16 which is collided. At the corner of an end face of the test vehicle 16 that is away from the bumped test vehicle 16, the chassis 1 is welded with a vertical support column 3, and the bottom end of the support column 3 is covered with a non-slip pad 15, which adopts rubber material to make. A diagonal brace 14 is welded between the support column 3 and the chassis 1 to enhance the connection strength between the support column 3 and the chassis 1 and prevent the support column 3 from breaking.

The lifting mechanism 4 includes a base rod set, a support rod set movably connected with the base rod set, and a beam 5 is connected between the base rod set and the support rod set. As shown in FIG. 3 , the base rod set includes a first base rod 41 and a second base rod 42 , and the support rod set includes a first support rod 43 and a second support rod 44 . The top of the first base rod 41, one end of the crossbeam 5, and the bottom three of the first support rod 43 are overlapped successively and hinged to form the first hinge point 45. On the crossbeam 5, one end away from the first hinge point 45 has a sliding section. Slot 51. The top end of the second base bar 42, the crossbeam 5 has an end of the chute 51, and the bottom three of the second support bar 44 are overlapped successively and hinged to form the second hinge point 46, the second hinge point 46 is located in the chute 51 and can Slide in the chute 51. A fastening bolt 6 is mounted on the end of the slide groove 51 away from the first hinge point 45 , and the fastening bolt 6 is used to adjust the distance between the first hinge point 45 and the second hinge point 46 . The bottom end of the first base bar 41 and the bottom end of the second base bar 42 are all hinged with the side of the chassis 1, and the top ends of the first support bar 43 and the second support bar 44 are all hinged with the base 9 of the clamping mechanism .

The collided test car 16 is placed on the crash test stand, and the anti-rollover device is fixed on the opposite side of the side where the test car 16 is hit. Different car models have different threshold heights. According to different car models, adjust the height of the lifting mechanism 4 in the vertical direction, and then adjust the height of the clamping mechanism. First, loosen the fastening bolts 6 on the beam 5 , and swing the first base bar 41 and the second base bar 42 to adjust the distance between the first hinge point 45 and the second hinge point 46 . When the distance between the first hinge point 45 and the second hinge point 46 increased, the vertical height of the lifting mechanism 4 decreased; when the distance between the first hinge point 45 and the second hinge point 46 decreased, the lifting mechanism The vertical height of 4 is raised. After adjusting the height of the clamping mechanism, tighten the fastening bolts 6 on the beam 5 to limit the sliding of the second hinge point 46 along the chute 51 . Then loosen the adjusting bolt 12 on the clamping mechanism, insert the threshold of the test vehicle 16 between the fixed clamping arm 10 and the movable clamping arm 11, fix the adjusting bolt 12 to make the movable clamping arm 11 and the fixed clamping arm 10 cooperate Clamp the test vehicle 16. After the anti-turnover device and the bumped test vehicle 16 are fixed, ensure that the support column 3 on the chassis 1 of the anti-turnover device is positioned at the end of the chassis 1 away from the test vehicle 16 .

After the collided test vehicle 16 is hit, the test vehicle 16 moves towards the side where the anti-overturn device is installed and overturns. During the translation stage of the test vehicle 16, the test vehicle 16 pushes the anti-rollover device to translate, and the wheels 2 of the anti-rollover device can reduce the friction force between the anti-rollover device and the ground, so as to avoid the impact of the anti-rollover device on the results of the crash test. When the test vehicle 16 enters the overturning stage, as shown in FIG. 2 , the anti-overturn device follows the test vehicle 16 overturning. The contact line between the wheel of the anti-rollover device away from the test vehicle 16 and the ground is used as the reference axis for the rotation of the anti-rollover device. The end of the anti-rollover device close to the test vehicle 16 is raised, and the end far away from the test vehicle 16 is lowered. 1 The bottom end of the support column 3 at the end far away from the test vehicle 16 is in contact with the ground and supports the chassis 1, the lifting mechanism 4 on the chassis 1 and the clamping mechanism, and then supports the test vehicle 16 to prevent the test vehicle 16 from being collided Turn over to effectively protect the test instruments in the test vehicle 16, avoid instrument damage, and reduce test costs. An anti-skid pad 15 is installed at the bottom of the support column 3, which can prevent the support column 3 from directly contacting the ground, and prevent the bottom end of the support column 3 from wearing and tearing.

Embodiment 2: The structure of this embodiment is basically the same as that of Embodiment 1, the difference is that the first base rod 41, the second base rod 42, the first support rod 43 and the second support rod 44 are all provided with a section of groove 7. As shown in Figure 5, the first base bar 41 and the second base bar 42 are intersected and hinged at the intersection, and the hinge is located in the groove 7 on the first base bar 41 and the second base bar 42; the first support bar 43 intersects with the second support rod 44 and is hinged at the intersection, and the hinge is located in the groove 7 on the first support rod 43 and the second support rod 44 . The top end of the first base rod 41 is hinged to the bottom end of the second support rod 44 , and the top end of the second base rod 42 is hinged to the bottom end of the first support rod 43 . As shown in FIG. 4 , a height adjusting screw 8 is installed vertically between the base 9 of the clamping mechanism and the chassis 1 .

Unscrew the height adjustment screw rod 12, adjust the height of the clamping mechanism according to different vehicle models, and then tighten the height adjustment screw rod 12 after adjustment. When the height of the height adjustment screw 12 is increased, the position of the base 9 is raised, so that the hinge point between the first support rod 43 and the second support rod 44 slides upward along the groove 7, and at the same time, drives the first base rod The hinge point between 41 and the second base bar 42 slides upward along the slot 7 . After the position of the height adjustment screw 12 is fixed, the hinge point between the first base rod 41 and the second base rod 42 is fastened, and then the hinge point between the first support rod 43 and the second support rod 44 is fastened. . Both the height adjusting screw rod 12 and the lifting mechanism 4 support the base 9 of the clamping mechanism.

It should be understood that this embodiment is only used to illustrate the present invention and is not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Claims (6)

1. the turnover proof apparatusfor automobile in an impact test, it is characterized in that, comprise chassis (1), be positioned at the wheel (2) of both sides, chassis and be positioned at one end, chassis (1) for preventing the support column (3) of chassis upset, both sides, described chassis (1) are provided with elevating mechanism (4), described elevating mechanism (4) top is provided with for being fixed on the clamp system on instruction carriage, described elevating mechanism (4) comprises base bar group, the support bar group being flexibly connected with base bar group, described base bar group bottom and both sides, chassis are hinged, top and the clamp system of support bar group are hinged, described clamp system comprises horizontally disposed pedestal (9), fix to clamp arm (10), the movable clamping arm (11) parallel with fixing to clamp arm (10), be used for the adjusting bolt (12) that regulates movable clamping arm (11) and fix to clamp distance between arm (10), the described arm (10) that fixes to clamp is vertically fixed on pedestal (9), on described pedestal (9), be provided with horizontal concrete chute (13), movable clamping arm (11) is slidably connected by horizontal concrete chute (13) and pedestal (9).

2. the turnover proof apparatusfor automobile in impact test according to claim 1, it is characterized in that, between base bar group and support bar group, be provided with crossbeam (5), base bar group comprises the first base bar (41) and the second base bar (42), support bar group comprises the first support bar (43) and the second support bar (44), the top of the first described base bar (41), one end of crossbeam (5) and hinged formation the first pin joint of the first support bar (43) bottom three (45); Described crossbeam (5) is upper locates to be provided with one section of chute (51) away from the first pin joint (45), described crossbeam (5) is positioned between the second base bar (42) and the second support bar (44) away from one end of the first pin joint (45), described the second base bar (42) top and hinged formation the second pin joint in the second support bar (44) bottom (46), the second pin joint (46) is slidably connected with chute (51); One end away from the first pin joint (45) in chute (51) is provided with fastening bolt (6).

3. the turnover proof apparatusfor automobile in impact test according to claim 1, it is characterized in that, base bar group comprises the first base bar (41) and the second base bar (42), support bar group comprises the first support bar (43) and the second support bar (44), the first described base bar (41), the second base bar (42), on the first support bar (43) and the second support bar (44), be provided with groove (7), the first described base bar (41) and the second base bar (42) groove (7) arranged in a crossed manner and in intersection is upper hinged, described the first support bar (43) and the second support bar (44) groove (7) arranged in a crossed manner and in intersection is upper hinged, described the first base bar (41) top and the second support bar (44) bottom are hinged, and described the second base bar (42) top and the first support bar (43) bottom are hinged, between described clamp system and chassis (1), be provided with height adjusting screw rod (8).

4. the turnover proof apparatusfor automobile in impact test according to claim 2, it is characterized in that, the side on the Jun Yu chassis, bottom (1) of the bottom of the first described base bar (41) and the second base bar (42) is hinged, and described the first support bar (43) top and the second support bar (44) top are all hinged with the pedestal (9) of clamp device.

5. according to the turnover proof apparatusfor automobile in the impact test described in claim 1 or 2 or 3, it is characterized in that, the vertical chassis (1) of described support column (3) is also fixedly installed on the edge of chassis (1) one end face, between described support column (3) and chassis (1), is provided with diagonal brace (14).

6. the turnover proof apparatusfor automobile in impact test according to claim 5, is characterized in that, described support column (3) bottom is provided with slipmat (15).