An actively tilted vehicle test platform

Abstract

The application provides an active tilting vehicle test platform, and relates to the technical field of vehicle testing and detection. A vehicle body is parked to a predetermined position of a tilting platform. A first blocking piece enters a circumferential groove of a corresponding tire. A second blocking piece abuts against the outside of the tire and pushes the outside of the tire to move the vehicle body until the first blocking piece is parallel to the second blocking piece, so that the whole vehicle body is parallel to the second blocking piece, the contact area and the contact degree of the tire and the second blocking piece are consistent, and the accuracy of test data is ensured. When the tilting platform rotates, the first blocking piece laterally supports all the tires, and the second blocking piece laterally supports the tires close to the preset axis, so that the lateral support source is increased, the lateral load of the vehicle body is uniformly applied to the first blocking piece and the second blocking piece, the pressure intensity on the sidewall of the tire is reduced, the structural damage of the sidewall of the tire caused by stress concentration is reduced, the accuracy of test data is ensured, and safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle testing and detection, in particular to an active tilting vehicle test platform. BACKGROUND

[0002] The automobile roll stability test is a core verification link to ensure the dynamic safety performance of the vehicle. GB / T 14172-2021 "Automobile, Trailer and Automobile Train Static Roll Stability Bench Test Method" provides a basic test specification for the industry, which evaluates the anti-rollover capability of the vehicle by simulating the vehicle roll attitude.

[0003] In the prior art, the anti-sideslip test system adopts a constraint mode combined with tire-platform static friction and rigid block. In fact, the lateral constraint of the test bench on the vehicle mainly depends on the rigid abutment of the block to the tire sidewall. When the roll loading is performed, the block needs to bear most of the lateral load of the vehicle, so that the pressure in the contact area between the tire sidewall and the block is greatly beyond the elastic deformation threshold of the tire sidewall material, resulting in stress concentration phenomenon of the tire sidewall, causing shear damage of the tire cord layer, and thus causing irreversible structural damage of the tire, affecting the accuracy of the test data, and possibly causing safety hazards in the test process. In addition, due to parking reasons, the contact area and contact degree of the front and rear tires of the vehicle with the block may be different, affecting the accuracy of the test data.

[0004] The information disclosed in the background section of this application is only intended to deepen the understanding of the general background of the application, and should not be regarded as recognition or in any form as implying that this information constitutes prior art known to those skilled in the art. SUMMARY

[0005] Therefore, it is necessary to provide an active tilting vehicle test platform in view of the problems existing in the current anti-sideslip test system.

[0006] The above-mentioned purpose is achieved by the following technical scheme:

[0007] An active tilting vehicle test platform, comprising a tilting platform and a first blocking piece and a second blocking piece arranged on the tilting platform, the tilting platform is used for parking a vehicle body, the tire of the vehicle body has a circumferential groove, and the tilting platform can rotate around a preset axis and form a test included angle with the horizontal plane;

[0008] The first blocking piece can be clamped with the corresponding circumferential groove, the first blocking piece is consistent with the overall direction of the vehicle body, the second blocking piece is parallel to the preset axis, and the second blocking piece is located on the side of the tilting platform close to the preset axis, the second blocking piece abuts and pushes the outer side of the tire, so that the vehicle body moves until the first blocking piece is parallel to the second blocking piece.

[0009] Further, the thickness of the second blocking piece perpendicular to the inclined platform is positively correlated with the cross-sectional thickness of the tire.

[0010] Further, the second blocking piece comprises a fixed part and a lifting part, the lifting part being movable relative to the fixed part to change the thickness of the second blocking piece perpendicular to the inclined platform.

[0011] Further, the inclined platform is provided with a limiting piece for limiting the distance of the second blocking piece pushing the tire to move the vehicle body.

[0012] Further, the inclined platform is provided with a mounting rack slidingly arranged thereon, the sliding direction of the mounting rack being perpendicular to the preset axis, the first blocking piece being arranged on the mounting rack, the first blocking piece being slidingly arranged on the mounting rack, the sliding direction of the first blocking piece being the same as the sliding direction of the mounting rack.

[0013] Further, the circumferential grooves are arranged at equal intervals along the axial direction of the tire.

[0014] Further, a roller is arranged between the mounting rack and the inclined platform, the roller rolling when the mounting rack slides.

[0015] The beneficial effects of the present application are as follows: when the vehicle body is parked to the predetermined position of the inclined platform, the first blocking piece enters the circumferential groove of the corresponding tire and is clamped therewith, the second blocking piece parallel to the preset axis abuts against the outer side of the tire, the second blocking piece pushes the outer side of the tire to move the vehicle body, until the first blocking piece is parallel to the second blocking piece, so that the whole vehicle body is oriented parallel to the second blocking piece, thereby ensuring that the contact area and the contact degree of the tire and the second blocking piece are consistent, and ensuring the accuracy of the test data; when the side loading is performed, the inclined platform gradually rotates around the preset axis and forms an angle with the horizontal plane, the first blocking piece laterally supports all the tires of the vehicle body, and the second blocking piece laterally supports the tires of the vehicle body close to the preset axis, thereby increasing the lateral support source of the tires, making the lateral load of the vehicle body uniformly act on the first blocking piece and the second blocking piece, reducing the pressure intensity on the sidewall of the tire, reducing the structural damage of the sidewall of the tire due to stress concentration, thereby ensuring the accuracy of the test data and reducing the safety hazards in the test process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The isometric view of the active inclined vehicle test platform provided by the embodiments of the present application;

[0017] Figure 2 The isometric view of the active inclined vehicle test platform provided by the embodiments of the present application; Figure 1 The top view of the active inclined vehicle test platform provided by the embodiments of the present application;

[0018] Figure 3 for Figure 2 Figure 1 is a sectional view of the active tilting vehicle test platform along the A-A direction;

[0019] Figure 4 for Figure 3 Figure 2 is a partial enlarged view at B in Figure 1;

[0020] Figure 5 for Figure 1 Figure 3 is an axonometric view of the active tilting vehicle test platform without the vehicle body in Figure 1;

[0021] Figure 6 for Figure 5 Figure 4 is a partial enlarged view at C in Figure 3;

[0022] Figure 7 for Figure 6 Figure 5 is a partial enlarged view at E in Figure 3;

[0023] Figure 8 for Figure 6 Figure 6 is a partial enlarged view at F in Figure 3;

[0024] Figure 9 for Figure 5 Figure 7 is a top view of the active tilting vehicle test platform without the vehicle body in Figure 3;

[0025] Figure 10 for Figure 9 Figure 8 is a sectional view of the active tilting vehicle test platform along the G-G direction in Figure 3;

[0026] Figure 11 for Figure 10 Figure 9 is a partial enlarged view at H in Figure 8.

[0027] Wherein:

[0028] 100, tilting platform; 101, vehicle body; 102, tire; 103, circumferential groove; 104, guiding platform; 105, control console; 106, fixed seat; 107, hinged seat; 108, first screw rod; 109, sliding block; 110, track; 111, push rod; 112, detection module; 113, support seat;

[0029] 200, first blocking piece; 201, mounting frame; 206, first long slot; 207, third long slot; 208, adjusting plate; 209, fourth long slot;

[0030] 300. Second blocking component; 301. Rewinding shaft; 302. Rewinding roller; 303. Steel cable; 304. First motor; 305. Second screw; 306. First wedge; 307. Second wedge; 308. Vertical rod; 309. First chain; 310. Second chain; 311. Fixing ring; 312. Pull rod; 313. Guide rod; 314. Second elongated hole; 315. Fixing part; 316. Lifting part. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0032] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" of the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] like Figures 1 to 11 As shown, this embodiment of the invention provides an active tilting vehicle test platform, including a tilting platform 100 and a first blocking member 200 and a second blocking member 300 disposed on the tilting platform 100. The tilting platform 100 is used to park a vehicle body 101. The tires 102 of the vehicle body 101 have circumferential grooves 103. The tilting platform 100 can rotate around a preset axis and form a test angle with the horizontal plane.

[0035] The first blocking piece 200 can be clamped with the corresponding circumferential groove 103, the overall orientation of the first blocking piece 200 is consistent with the vehicle body 101, the second blocking piece 300 is parallel to the preset axis, and the second blocking piece 300 is located on the side of the inclined platform 100 close to the preset axis, and the second blocking piece 300 abuts and pushes the outer side of the tire 102, so that the vehicle body 101 moves until the first blocking piece 200 is parallel to the second blocking piece 300.

[0036] When the vehicle body 101 is parked to the predetermined position of the inclined platform 100, the first blocking piece 200 enters the circumferential groove 103 of the corresponding tire 102 and is clamped with it, the second blocking piece 300 parallel to the preset axis abuts the outer side of the tire 102, the second blocking piece 300 pushes the outer side of the tire 102 to move the vehicle body 101 until the first blocking piece 200 is parallel to the second blocking piece 300, so that the overall orientation of the vehicle body 101 is parallel to the second blocking piece 300, thereby ensuring that the contact area and the contact degree of the tire 102 and the second blocking piece 300 are consistent, and ensuring the accuracy of the test data; when the side loading is carried out, the inclined platform 100 gradually rotates around the preset axis and forms an angle with the horizontal plane, the first blocking piece 200 laterally supports all the tires 102 of the vehicle body 101, and the second blocking piece 300 laterally supports the tires 102 of the vehicle body 101 close to the preset axis, thereby increasing the lateral support source of the tire 102, making the lateral load of the vehicle body 101 uniformly act on the first blocking piece 200 and the second blocking piece 300, reducing the pressure on the sidewall of the tire 102, reducing the structural damage of the sidewall of the tire 102 caused by stress concentration, thereby ensuring the accuracy of the test data and reducing the safety hidden trouble in the test process.

[0037] Among them, see Figure 1 、 Figure 3The main structure of the vehicle test platform is that: the starting end of the platform main body is provided with a guide platform 104 connected with the inclined platform 100, the guide platform 104 is arranged obliquely and one side is provided with a control console 105 for controlling the output end rotation of the speed reducer; the ground is provided with a fixed seat 106 and a hinged seat 107 oppositely, and a first screw rod 108 is rotatably arranged between the two; the first screw rod 108 is driven to rotate by the speed reducer, and a sliding block 109 is threadedly connected to the first screw rod 108; the ground is provided with a track 110 for the sliding block 109 to slide; one end of a push rod 111 is hingedly connected to the sliding block 109, and the other end of the push rod 111 is hingedly connected to one side of the inclined platform 100; the other side of the inclined platform 100 is hingedly connected to the hinged seat 107; and the ground is provided with a support seat 113 away from the preset axis on one side for supporting the inclined platform 100 when it is parallel to the horizontal plane. The output end of the speed reducer drives the first screw rod 108 to rotate, drives the sliding block 109 to slide along the track 110, and drives the inclined platform 100 to rotate uniformly around the hinge between the inclined platform 100 and the hinged seat 107, i.e. the preset axis, through the push rod 111, so that the inclined platform 100 forms a test angle with the horizontal plane. The maximum descending speed of the inclined platform 100 should be not greater than 27° / min, and the minimum ascending speed should be not greater than 3° / min. A plurality of the above structures are arranged along the length direction of the inclined platform 100 to improve the support and driving stability of the inclined platform 100.

[0038] In addition, the vehicle test platform also includes a base seat, the fixed seat 106, the hinged seat 107 and the support seat 113 are all installed on the base seat, which is the basic support structure of the test platform. The base seat is processed from a carbon structural steel plate to ensure stability during the test process. The base seat is provided with a plurality of mounting holes for fixing other components. The base seat is uniformly distributed with a plurality of ground anchors to ensure the stability of the equipment during operation and prevent displacement of the equipment due to vibration and impact. The ground anchor has the characteristics of adjustable height, which is suitable for the case where the use frequency of the inclined platform 100 is high and the precision is reduced, and ensures the stability of the inclined platform 100 during use. The above-mentioned speed reducer can include a helical tooth reducer and a worm gear reverser. Specifically, a high-efficiency energy-saving servo motor is selected as the power source. The motor is connected with the helical gear reducer to realize 90° reversing of the output shafts at both ends of the reducer and provide kinetic energy for the output shafts. The worm gear reverser is connected with the output shaft of the reducer through a shaft coupling. The kinetic energy input by the output shaft is converted by the worm gear to realize 90° reversing, which drives the first screw rod 108 to rotate. The vehicle test platform also includes proximity switches and angle sensors, etc. for real-time detection of the angle of the inclined platform 100.

[0039] The vehicle test platform adopts an electric drive system to replace a traditional hydraulic system, and generates a required roll force through a motor drive to simulate and test the roll performance of a vehicle. Compared with the hydraulic system, the electric drive system has the advantages of simple and compact structure, convenient maintenance, environmental protection and energy saving, and the manufacturing and maintenance costs of the motor are relatively low. The requirements for the foundation are simple, the distance from the ground after the background surface is flattened is relatively reduced, and the anti-seismic ability and stability are higher.

[0040] It is worth noting that each motor used in the vehicle test platform is configured with a corresponding power supply, connection line and controller. The controller of each motor is connected to the processor in the control console 105 to facilitate the start and stop of each motor through the control console 105.

[0041] The first blocking piece 200 and the second blocking piece 300 are both rod-shaped. The number of the circumferential grooves 103 of the tire 102 is equal to the number of the first blocking pieces 200, and the number of the axles of the vehicle body 101 is equal to the number of the second blocking pieces 300. For example, for a domestic four-wheel saloon car, the number of the tires 102 is 4, and the number of the axles is 2. Therefore, the number of the first blocking pieces 200 is a multiple of 4, and the number of the second blocking pieces 300 is 2. In addition, when the vehicle body 101 is stopped, all the tires 102 are directed towards the front of the vehicle body 101, so that the tangential direction of the tires 102 of the vehicle body 101 is parallel to the front-rear direction of the vehicle body 101.

[0042] The first blocking piece 200 and the second blocking piece 300 are both rod-shaped. The number of the circumferential grooves 103 of the tire 102 is equal to the number of the first blocking pieces 200, and the number of the axles of the vehicle body 101 is equal to the number of the second blocking pieces 300. For example, for a domestic four-wheel saloon car, the number of the tires 102 is 4, and the number of the axles is 2. Therefore, the number of the first blocking pieces 200 is a multiple of 4, and the number of the second blocking pieces 300 is 2. In addition, when the vehicle body 101 is stopped, all the tires 102 are directed towards the front of the vehicle body 101, so that the tangential direction of the tires 102 of the vehicle body 101 is parallel to the front-rear direction of the vehicle body 101. Figure 6 The side of the tilting platform 100 away from the preset axis is provided with a winding shaft 301 parallel to the preset axis, and the tilting platform 100 is provided with a driving device to drive the winding shaft 301 to rotate. The winding shaft 301 is provided with a winding roller 302, and the winding roller 302 is provided with a plurality of mutually parallel steel cables 303. When the winding roller 302 rotates, the second blocking piece 300 is pulled through the steel cable 303, so that the second blocking piece 300 abuts against the outside of the tire 102 close to the side of the preset axis. Of course, other ways can also be used to drive the second blocking piece 300 to move, such as a linear motor or a screw nut structure.

[0043] The side of the tilting platform 100 away from the preset axis can also be provided with a rollover prevention safety device to prevent the vehicle body 101 from rolling over. The restraining force of the safety device on the vehicle body 101 should be zero before the vehicle body 101 reaches the rollover critical state. The safety device can be a plurality of chains or ropes connected to the vehicle body 101 away from the preset axis.

[0044] Preferably, the thickness of the second blocking piece 300 perpendicular to the tilting platform 100 is positively correlated with the cross-sectional thickness of the tire 102.

[0045] The thickness of the second blocking piece 300 perpendicular to the inclined platform 100 should not be greater than the larger value of 2 / 3 of the distance between the tire 102 ground contact surface and the lower edge of the rim and 60mm before the vehicle body 101 tilts, the length direction of the second blocking piece 300 is parallel to the preset axis, and the length of the second blocking piece 300 should not be less than 500mm, and the top corner radius of the second blocking piece 300 on the tire 102 contact side is not less than 10mm. In theory, the greater the thickness of the second blocking piece 300 perpendicular to the inclined platform 100, the greater the measured static rollover stability angle of the vehicle. From the perspective of the influence on the test results, the smaller the thickness of the second blocking piece 300 perpendicular to the inclined platform 100, the better, but if the thickness of the second blocking piece 300 perpendicular to the inclined platform 100 is too low, the tire 102 will deform severely under the action of lateral force during the test and easily slide over the second blocking piece 300, causing safety accidents. In actual use, under the premise of preventing side sliding and ensuring test safety, it is recommended to use a blocking piece with a lower thickness as much as possible to improve the accuracy of the test results.

[0046] The detection module 112 is arranged on the guide platform 104, and when the vehicle body 101 passes through the detection module 112, the detection module 112 is used to obtain the distance between the tire 102 ground contact surface and the lower edge of the rim of the vehicle body 101. The greater the distance, the greater the cross-sectional thickness of the corresponding tire 102, that is, the greater the thickness of the second blocking piece 300 perpendicular to the inclined platform 100.

[0047] Preferably, the second blocking piece 300 includes a fixed part 315 and a lifting part 316, and the lifting part 316 can move relative to the fixed part 315 to change the thickness of the second blocking piece 300 perpendicular to the inclined platform 100, so that the second blocking piece 300 can automatically adjust its thickness perpendicular to the inclined platform 100 according to different sizes of the tire 102.

[0048] The detection module 112 is arranged on the guide platform 104, and when the vehicle body 101 passes through the detection module 112, the detection module 112 is used to obtain the distance between the tire 102 ground contact surface and the lower edge of the rim of the vehicle body 101. The greater the distance, the greater the cross-sectional thickness of the corresponding tire 102, that is, the greater the thickness of the second blocking piece 300 perpendicular to the inclined platform 100. Figure 10 , Figure 11The fixed part 315 has a cavity and is open on the upper side. The lifting part 316 is arranged on the opening of the fixed part 315. One end of the fixed part 315 is provided with the first motor 304. The output end of the first motor 304 extends into the cavity and is fixed with the second screw rod 305. The second screw rod 305 is divided into two parts by the center. The two parts are provided with two external threads with opposite rotation directions. The two external threads are respectively engaged with the corresponding first wedge blocks 306. The first wedge blocks 306 are arranged in the fixed part 315 along the length direction of the second screw rod 305. The lifting part 316 is formed with the second wedge block 307. The upper surface of the first wedge block 306 and the lower surface of the second wedge block 307 are inclined surfaces which are in contact with each other. The detection module 112 controls the output end of the first motor 304 to drive the second screw rod 305 to rotate according to the distance between the tire 102 and the lower edge of the rim of the vehicle body 101. The two first wedge blocks 306 are driven to move in opposite directions. The second wedge block 307 and the lifting part 316 are jointly moved up and down, so as to change the thickness of the second blocking piece 300 perpendicular to the inclined platform 100.

[0049] In addition, the spring is arranged between the fixed part 315 and the lifting part 316. The inclined surface of the upper surface of the first wedge block 306 and the inclined surface of the lower surface of the second wedge block 307 are kept in contact. The vertical rod 308 is further arranged between the fixed part 315 and the lifting part 316. The lifting part 316 can only move up and down. Of course, the driving structure between the fixed part 315 and the lifting part 316 can also be other forms, which are not limited here.

[0050] It is worth mentioning that, at the moment when the inclined platform 100 and the vehicle body 101 gradually approach the limit roll angle, the lifting part 316 can be quickly moved relative to the fixed part 315 to quickly increase the thickness of the second blocking piece 300 perpendicular to the inclined platform 100, so as to avoid the tire 102 slipping off due to the failure of the first blocking piece 200, the small static friction between the tire 102 and the inclined platform 100, or the low second blocking piece 300, thereby ensuring the safety of the test.

[0051] Preferably, the inclined platform 100 is provided with the limiting piece. The limiting piece is used to limit the distance that the second blocking piece 300 pushes the tire 102 to move the vehicle body 101.

[0052] Among them, referring to Figure 6 , Figure 8The free end of the steel cable 303 is connected to one end of the first iron chain 309. The other end of the first iron chain 309 is fixed to one side of the second blocking member 300. The other side of the second blocking member 300 is fixed to one end of the limiting member. The limiting member consists of multiple second iron chains 310 of equal length and equally spaced parallel arrangement. One end of the second iron chain 310 is fixed to the second blocking member 300. Multiple fixing rings 311 are provided on the side of the inclined platform 100 near the preset axis. The other end of the second iron chain 310 is connected to the fixing rings 311.

[0053] Of course, other structures can also be used for the limiting component. For example, the limiting component can slide along the inclined platform 100 through a guide block and guide groove structure, and the movement distance of the guide block in the guide groove is limited.

[0054] Preferably, a mounting bracket 201 is slidably provided on the inclined platform 100, the sliding direction of the mounting bracket 201 is perpendicular to the preset axis, and a first blocking member 200 is provided on the mounting bracket 201.

[0055] Among them, see Figure 6 , Figure 7 The mounting bracket 201 can be a rectangular frame. Preferably, the mounting bracket 201 consists of two parallel rods of equal length, with a first blocking member 200 between the two rods. Furthermore, the first blocking member 200 has first elongated holes 206 along its length at both ends, and the first blocking member 200 is movably mounted on the mounting bracket 201 through the first elongated holes 206 and bolts. It is worth noting that the first blocking member 200 is preferably made of carbon steel, aluminum alloy, or stainless steel, and the lower part of the first blocking member 200 is provided with reinforcing ribs to improve its support strength.

[0056] Among them, see Figure 8 A pull rod 312 is fixed to the free end of the steel cable 303, and a guide rod 313 is fixed to one end of the mounting frame 201. The guide rod 313 is movably mounted on the pull rod 312 through a second elongated hole 314 and a bolt. The pull rod 312 is fixed to one end of the first iron chain 309. A through hole is provided on the mounting frame 201, through which the first iron chain 309 passes, and the other end of the first iron chain 309 is fixed to the second blocking member 300. The steel cable 303 pulls the second blocking member 300 to move via the pull rod 312 and the first iron chain 309, and the sliding direction of the mounting frame 201 is limited to be the same as the pulling direction of the first iron chain 309 by the sliding of the guide rod 313 along the pull rod 312.

[0057] Preferably, the first blocking member 200 is slidably disposed on the mounting bracket 201, and the sliding direction of the first blocking member 200 is the same as the sliding direction of the mounting bracket 201.

[0058] The first blocking pieces 200 corresponding to the two tires 102 on the same rotating shaft of the vehicle body 101 can be adjusted in relative distance to adapt to the vehicle body 101 with different wheel track. For example, the distance between the first blocking pieces 200 corresponding to the left and right tires 102 on the front axle of a four-wheel passenger car can be adjusted.

[0059] Preferably, the circumferential grooves 103 are arranged at equal intervals along the axial direction of the tire 102 to improve the lateral supporting force of the first blocking pieces 200 on the tire 102. In addition, the distance between the adjacent first blocking pieces 200 can be adjusted to adapt to the distance between the circumferential grooves 103 of different tires 102.

[0060] Specifically, referring to Figure 7 , the mounting frame 201 is provided with a third long slot 207, and the third long slot 207 is movably provided with an adjusting plate 208 through a bolt. The adjusting plate 208 is provided with a fourth long slot 209, and a plurality of first blocking pieces 200 are movably arranged on the adjusting plate 208 through the fourth long slot 209 and the bolt. For a single tire 102, the number of first blocking pieces 200 is greater than the number of circumferential grooves 103 to adapt to different numbers of circumferential grooves 103 of different tires 102. The distance between the first blocking pieces 200 on the same adjusting plate 208 can be adjusted, and the plurality of first blocking pieces 200 can slide along the fourth long slot 209 with the adjusting plate 208. The third long slot 207 is parallel to the fourth long slot 209 and perpendicular to the first long slot 206.

[0061] Preferably, a roller is arranged between the mounting frame 201 and the inclined platform 100. When the mounting frame 201 slides, the roller rolls to reduce the friction between the mounting frame 201 and the inclined platform 100. The roller can only roll in one direction, thereby limiting the sliding direction of the mounting frame 201 to be perpendicular to the preset axis.

[0062] Of course, the sliding direction of the mounting frame 201 can also be limited by a sliding groove and a sliding rod structure. For example, the inclined platform 100 is provided with a sliding groove, and the mounting frame 201 is provided with a corresponding sliding rod.

[0063] In use, the vehicle body 101 is driven by the guide platform 104 to the inclined platform 100 and parked at a predetermined position of the inclined platform 100, in the process, the detection module 112 controls the output end of the first motor 304 to drive the second screw 305 to rotate, drives the two first wedge blocks 306 to move in opposite directions, so that the second wedge block 307 and the lifting part 316 move up and down together, thereby changing the thickness of the second blocking piece 300. Then adjust the position and spacing of the first blocking piece 200, so that it is aligned with the corresponding circumferential groove 103 of the tire 102. The vehicle body 101 drives over the mounting frame 201, and the tire 102 is pressed on the first blocking piece 200, and the first blocking piece 200 needs to enter the circumferential groove 103 of the corresponding tire 102 and be clamped with it.

[0064] The winding shaft 301 and the winding roller 302 are controlled to rotate to pull the steel cable 303, the second blocking piece 300 is moved by the pull rod 312 and the first chain 309, the second blocking piece 300 is abutted with the outside of the tire 102 close to the preset axis, and the second blocking piece 300 pushes the outside of the tire 102 to move the vehicle body 101, until the second chain 310 is pulled tight, the first blocking piece 200 is parallel to the second blocking piece 300, so that the whole vehicle body 101 is parallel to the second blocking piece 300, thereby ensuring that the contact area and the contact degree of the tire 102 and the second blocking piece 300 are consistent, and ensuring the accuracy of the test data. Then, the two ends of the first blocking piece 200 are fixed with the adjusting plate 208, the adjusting plate 208 is fixed with the mounting frame 201, and the pull rod 312 is fixed with the guide rod 313.

[0065] The first screw 108 is driven to rotate by the speed reducer motor, the sliding block 109 is driven to slide along the track 110, and the inclined platform 100 is also driven to rotate uniformly around the hinge with the hinge seat 107, that is, the preset axis, by the push rod 111, so that the inclined platform 100 forms a test angle with the horizontal plane to perform a roll loading process. The first blocking piece 200 is in the circumferential groove 103 to laterally support all the tires 102 of the vehicle body 101, and the second blocking piece 300 laterally supports the tires 102 close to the preset axis of the vehicle body 101, thereby increasing the lateral support source of the tire 102, making the lateral load of the vehicle body 101 uniformly act on the first blocking piece 200 and the second blocking piece 300, reducing the pressure on the sidewall of the tire 102, reducing the structural damage of the sidewall of the tire 102 due to stress concentration, thereby ensuring the accuracy of the test data and reducing the safety hazards in the test process.

[0066] Any combination of the technical features in the above embodiments can be made, and for the sake of brevity, not all possible combinations are described above. However, any combination of the technical features is deemed to be within the scope of the present disclosure as long as such a combination does not result in an inconsistency.

[0067] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the present application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An actively banked vehicle test platform characterized by, The application relates to a device for testing the stability of a vehicle body, which comprises a tilting platform for parking the vehicle body, a first blocking piece and a second blocking piece arranged on the tilting platform, wherein the vehicle body has circumferential grooves, the tilting platform can rotate around a preset axis and forms a test angle with the horizontal plane. The first blocking piece can be clamped with the corresponding circumferential grooves, the first blocking piece is consistent with the whole vehicle body, the second blocking piece is parallel to the preset axis, and the second blocking piece is located on the side of the tilting platform close to the preset axis, the second blocking piece abuts and pushes the outer side of the tire, so that the vehicle body moves until the first blocking piece is parallel to the second blocking piece.

2. The actively banked vehicle test platform of claim 1, wherein, The thickness of the second blocking piece perpendicular to the tilting platform is positively correlated with the cross-sectional thickness of the tire.

3. The actively banked vehicle test platform of claim 2, wherein, The second blocking piece comprises a fixed part and a lifting part, and the lifting part can move relative to the fixed part to change the thickness of the second blocking piece perpendicular to the tilting platform.

4. The actively banked vehicle test platform of claim 1, wherein, The tilting platform is provided with a limiting piece for limiting the distance of the tire pushed by the second blocking piece to move the vehicle body.

5. The actively banked vehicle test platform of any of claims 1 to 4, wherein, The tilting platform is provided with a mounting frame, the sliding direction of the mounting frame is perpendicular to the preset axis, the first blocking piece is arranged on the mounting frame, the first blocking piece is slidably arranged on the mounting frame, and the sliding direction of the first blocking piece is the same as the sliding direction of the mounting frame.

6. The actively banked vehicle test platform of claim 5, wherein, The circumferential grooves are arranged at equal intervals along the axial direction of the tire.

7. The actively banked vehicle test platform of claim 5, wherein, The mounting frame and the tilting platform are provided with a roller, and the roller rolls when the mounting frame slides.

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