Vehicle measuring system

Abstract

The utility model is suitable for the technical field of vehicle detection, and provides a vehicle measuring system, which comprises a base, a stand column, a lifting driving assembly and a cross beam, the base comprises a first adjusting assembly, the stand column comprises a stand column body and a second adjusting assembly, the first adjusting assembly is used for driving the stand column body to rotate around a first axis, and the lifting driving assembly is arranged on the stand column body. And the driving assembly is connected with the second adjusting assembly and used for driving the second adjusting assembly to translate in the third direction, and the second adjusting assembly is connected with the cross beam and used for driving the cross beam to rotate around the first axis and the third axis. The multiple sets of adjusting structures are arranged in a scattered mode, the structures of the first adjusting assembly, the lifting driving assembly and the second adjusting assembly can be simplified respectively, the structural relevance between the adjusting structures and the relevance between the results are reduced, the problem that repeated and repeated adjustment is needed due to relevance of the adjusting structures is avoided, and the adjusting efficiency can be improved easily.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle detection, in particular to a vehicle measurement system. BACKGROUND

[0002] Vehicle four-wheel positioning is to adjust the positioning parameters of the four wheels (two front wheels and two rear wheels) of the vehicle, so that the geometric angles between the suspension system and the wheels of the vehicle are in the best state. ADAS (Advanced Driver Assistant Systems) calibration refers to the calibration of the position, function and parameters of the sensors (such as cameras, radars, ultrasonic sensors, etc.) configured on the vehicle by using external measurement equipment, so as to ensure that they can accurately perceive the environmental information around the vehicle.

[0003] Before the four-wheel positioning and ADAS calibration of the vehicle are performed, the relative position between the calibration structure and the vehicle to be detected needs to be ensured. This requires that the calibration structure can be finely adjusted in translation in multiple different directions and finely adjusted in swing in multiple different planes.

[0004] Therefore, the existing vehicle measurement system has the problem that multiple sets of adjustment structures are integrated together, resulting in a complex overall structure, and assembly, maintenance, etc. have certain difficulties, and the adjustment structures of different groups are often structurally related to each other, and the adjustment results are also related to each other. The multiple sets of adjustment structures need to be operated in sequence and individually, and often need to be adjusted repeatedly, thereby causing the problems of inconvenient adjustment and low efficiency. CONTENT OF THE INVENTION

[0005] The purpose of the embodiments of the present application is to provide a vehicle measurement system, which aims to solve the technical problems of the existing adjustment device that the structure is complex and has strong correlation, resulting in inconvenient adjustment.

[0006] The embodiments of the present application are implemented in this way. A vehicle measurement system comprises:

[0007] A base, comprising a base body and a first adjustment assembly arranged on the base body;

[0008] A stand column, comprising a stand column body and a second adjustment assembly arranged on the stand column body, the stand column body being connected to the first adjustment assembly, the first adjustment assembly being used to drive the stand column body to rotate around a first axis, the first axis being parallel to a third direction;

[0009] A lifting driving assembly arranged on the stand column body and used to drive the second adjustment assembly to translate along the third direction; and

[0010] A crossbeam, the second adjusting assembly is connected with the crossbeam and is used to drive the crossbeam to rotate around a second axis and a third axis; the second axis is parallel to the first direction, and the third axis is perpendicular to the first direction; the first direction is perpendicular to the third direction.

[0011] In one embodiment, the first adjusting assembly comprises a first rotating member, the first rotating member comprises a first worm and a first worm wheel engaged with each other; a central axis of the first worm wheel is the first axis, and the first worm wheel is rotatably installed on the base body; the column body is coaxially connected with the first worm wheel.

[0012] In one embodiment, the first adjusting assembly further comprises a first translating member and a second translating member; the first translating member comprises a first screw rod and a first nut engaged with each other, and a first support plate fixedly connected with the first nut; the second translating member comprises a second screw rod and a second nut engaged with each other, and a second support plate fixedly connected with the second nut.

[0013] An axial direction of the first screw rod is parallel to the first direction, and the first screw rod is rotatably installed on the base body; an axial direction of the second screw rod is parallel to a second direction, and the second screw rod is rotatably installed on the first support plate; the first worm wheel is rotatably installed on the second support plate; the second direction is perpendicular to the first direction and the third direction.

[0014] In one embodiment, the first translating member further comprises a first driving member, the first driving member is arranged on the base body and connected with the first screw rod; the second translating member further comprises a second driving member, the second driving member is arranged on the first support plate and connected with the second screw rod; the first rotating member further comprises a third driving member, the third driving member is arranged on the second support plate and connected with the first worm.

[0015] In one embodiment, a master control module is further included, the master control module is connected with the lifting driving assembly, the first driving member, the second driving member and the third driving member, and is used to control the lifting driving assembly, the first driving member, the second driving member and the third driving member.

[0016] In one embodiment, the column body comprises a fixed column and a lifting column, the fixed column is connected with the first adjusting assembly, and the lifting column is slidingly connected with the fixed column along the third direction; the lifting driving assembly comprises a jacking member and a driving chain, the jacking member is fixedly connected with the fixed column and comprises a push rod capable of lifting in the third direction, one end of the driving chain is connected with the fixed column, the driving chain slidingly passes over a top end of the jacking member, and the other end of the driving chain is fixedly connected with the second adjusting assembly.

[0017] In one embodiment, the column body further comprises a bracket fixedly connected to the second adjusting assembly and the other end of the driving chain, opposite sides of the bracket are respectively provided with guide rollers, the lifting column is sleeved on the fixed column, opposite sides of the lifting column are respectively provided with guide grooves opened in the third direction, and the guide rollers are rollingly arranged in the guide grooves.

[0018] In one embodiment, the second adjusting assembly comprises a fixed plate, a movable plate, a first fine adjustment module and a second fine adjustment module, the fixed plate is fixedly connected to the lifting driving assembly, the movable plate is rotationally connected to the fixed plate about the second axis, the first fine adjustment module is connected between the fixed plate and the movable plate and is used to drive the movable plate to rotate about the second axis, and the second fine adjustment module is arranged on the movable plate and is used to be connected with the cross beam, and the second fine adjustment module is used to drive the cross beam to rotate about the third axis.

[0019] In one embodiment, the first fine adjustment module comprises a third screw rod, a third nut and a connecting rod, the third screw rod is rotationally arranged on the fixed plate, a central axis of the third screw rod is perpendicular to the second direction, the third nut is arranged on the third screw rod, a first end of the connecting rod is rotationally connected to the fixed plate about a fourth axis, a second end of the connecting rod is rotationally connected to the third nut about a fifth axis, and the fourth axis and the fifth axis are parallel to the second axis; and the second direction is perpendicular to the first direction and the third direction.

[0020] In one embodiment, the first fine adjustment module further comprises a third guide rail and a third sliding block, the third guide rail is fixedly arranged on the movable plate and is parallel to the third screw rod, and the third sliding block is arranged on the third guide rail; and the second end of the connecting rod is rotationally connected to the third sliding block about the fifth axis.

[0021] In one embodiment, the second fine adjustment module comprises a second worm and a second worm wheel in meshing connection, the second worm is rotationally arranged on the movable plate, a central axis of the second worm is perpendicular to the first direction, the second worm wheel is rotationally arranged on the movable plate, and a central axis of the second worm wheel is perpendicular to the second direction; the cross beam is fixedly connected with the second worm wheel; and the second direction is perpendicular to the first direction and the third direction.

[0022] In one embodiment, the cross beam comprises a cross beam body and an inclination detection element arranged on the cross beam body, the inclination detection element is used to measure an inclination angle of the cross beam body relative to at least one of the first direction, the second direction and the third direction, and the second direction is perpendicular to the first direction and the third direction.

[0023] The vehicle measurement system provided by the embodiments of the present application has the following beneficial effects:

[0024] The vehicle measurement system provided by the embodiments of the present application comprises a base, a column, a lifting driving assembly, and a cross beam. The base comprises a base body and a first adjusting assembly arranged on the base body. The column comprises a column body and a second adjusting assembly arranged on the column body. The column body is connected to the first adjusting assembly. The first adjusting assembly is configured to drive the column body to rotate around a first axis. The lifting driving assembly is arranged on the column body and connected to the second adjusting assembly. The lifting driving assembly is configured to drive the second adjusting assembly to translate along a third direction. The second adjusting assembly is configured to connect the cross beam and drive the cross beam to rotate around the first axis and a third axis. The multiple sets of adjusting assemblies are arranged in a distributed manner. The structures of the first adjusting assembly, the lifting driving assembly, and the second adjusting assembly can be simplified respectively. Meanwhile, the structural correlation between the adjusting assemblies is reduced, the correlation between the adjusting results is reduced, the problem of repeated and multiple adjustments caused by the structural correlation of the adjusting assemblies is avoided, and the adjustment efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application. Other drawings can be obtained by those skilled in the art without creative effort.

[0026] Figure 1 is a schematic diagram of the overall structure of the vehicle measurement system provided by the embodiments of the present application;

[0027] Figure 2 is a schematic diagram of the structure of the base in the vehicle measurement system provided by the embodiments of the present application;

[0028] Figure 3 is a schematic diagram of the structure of the first adjusting assembly in the vehicle measurement system provided by the embodiments of the present application;

[0029] Figure 4 is a schematic diagram of the structure of the column in the vehicle measurement system provided by the embodiments of the present application;

[0030] Figure 5 is a schematic diagram of the structure of the column in the vehicle measurement system provided by the embodiments of the present application;

[0031] Figure 6 is a schematic diagram of the structure of the second adjusting assembly in the vehicle measurement system provided by the embodiments of the present application;

[0032] Figure 7is an exploded structural schematic view of a part of structure of a second adjusting assembly in a vehicle measurement system provided by an embodiment of the present application;

[0033] Figure 8 is a front view of a part of structure of a second adjusting assembly in a vehicle measurement system provided by an embodiment of the present application;

[0034] Figure 9 is a structural schematic view of a first fine adjustment module of a second adjusting assembly in a vehicle measurement system provided by an embodiment of the present application.

[0035] The meanings of the labels in the figures are as follows:

[0036] 100- vehicle measurement system;

[0037] 1- base, 11- base body, 111- upper shell, 112- lower shell;

[0038] 12- first adjusting assembly, 121- first translation member, 1211- first driving member, 1212- first lead screw, 1213- first nut, 1214- first support plate, 1215- first guide rail;

[0039] 123- second translation member, 1231- second driving member, 1232- second lead screw, 1233- second nut, 1234- second support plate, 1235- second guide rail;

[0040] 125- first rotation member, 1251- third driving member, 1252- first worm, 1253- first worm gear;

[0041] 3- stand, 31- stand body, 311- fixed stand, 312- lifting stand, 3120- guide groove, 313- support, 314- guide roller;

[0042] 33- second adjusting assembly;

[0043] 331- fixed plate, 3311- first fixed block;

[0044] 332- movable plate, 3321- second fixed block;

[0045] 333- first fine adjustment module, 3331- first hand wheel, 3332- first bevel gear, 3333- third lead screw, 3334- third nut, 3335- second bevel gear, 3336- third guide rail, 3337- third sliding block, 3338- connecting rod, 3340- connecting rod, 3341- first rotation rod;

[0046] 335 - second fine adjustment module, 3351 - second hand wheel, 3352 - second worm, 3353 - second worm wheel, 3354 - third bevel gear, 3355 - fourth bevel gear, 3356 - third support plate, 3357 - second rotating rod;

[0047] 7 - cross beam, 71 - cross beam body, 72 - image acquisition module, 73 - calibration element;

[0048] 81 - range finder;

[0049] 82 - electric control box, 83 - main control module;

[0050] 9 - lifting drive assembly, 91 - jacking element, 92 - drive chain;

[0051] X - first direction, Y - second direction, Z - third direction, P - first axis, Q - second axis, M - third axis, N - fourth axis, L - fifth axis. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0053] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly or indirectly fixed or disposed on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present patent. The terms "first", "second" are only for the purpose of convenient description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0054] In order to illustrate the technical scheme described in the present application, the following will be described in detail in combination with specific drawings and embodiments.

[0055] Please refer to Figure 1 As shown in the drawings, the embodiments of the present application provide a vehicle measurement system 100, which comprises a base 1, a stand 3, a lifting drive assembly 9, and a cross beam 7. As Figure 2As shown, the base 1 comprises a base body 11 and a first adjusting assembly 12 arranged on the base body 11, the base body 11 is arranged on a fixed surface such as the ground, serving as the support of the whole vehicle measurement system 100; as shown Figures 4 to 6 As shown, the column 3 comprises a column body 31 and a second adjusting assembly 33 arranged on the column body 31, the column body 31 is connected to the first adjusting assembly 12, the first adjusting assembly 12 is used to drive the column body 31 to rotate around the first axis P (see Figure 3 As shown), the first axis P is parallel to the third direction Z; as shown Figure 4 and Figure 5 As shown, the lifting driving assembly 9 is arranged on the column body 31 and connected to the second adjusting assembly 33, used to drive the second adjusting assembly 33 to translate along the third direction Z; the second adjusting assembly 33 is used to connect the cross beam 7 and drive the cross beam 7 to rotate around the second axis Q and the third axis M; as shown Figure 7 As shown; the second axis Q is parallel to the first direction X, and the third axis M is perpendicular to the first direction X; the first direction X and the third direction Z are perpendicular to each other.

[0056] In this way, through the cooperation of the first adjusting assembly 12, the lifting driving assembly 9 and the second adjusting assembly 33, the cross beam 7 can realize translation along the third direction Z, rotation around the first axis P, rotation around the second axis Q and rotation around the third axis M, realizing the adjustment of the position of the cross beam 7 in multiple dimensions, so as to adjust the cross beam 7 to the required position and attitude, meeting the needs of vehicle measurement.

[0057] Among the multiple groups of adjusting structures for adjusting the position and attitude of the cross beam 7, assuming that one dimension of adjustment corresponds to one group of adjusting structures, in the embodiment of the present application, the first adjusting assembly 12 (corresponding to at least one group of adjusting structures) is arranged on the base body 11, the lifting driving assembly 9 (corresponding to at least one group of adjusting structures) is arranged on the column 3, and the second adjusting assembly 33 (corresponding to at least two groups of adjusting structures) is arranged on the lifting driving assembly 9, so that the multiple groups of adjusting structures are dispersedly arranged, the structures of the first adjusting assembly 12, the lifting driving assembly 9 and the second adjusting assembly 33 can be simplified respectively, at the same time, this reduces the structural correlation between the adjusting structures, and further reduces the correlation between the adjustment results, avoiding the problem of repeated and multiple adjustments caused by the correlation of the adjusting structures, which is beneficial to improve the adjustment efficiency.

[0058] In addition, the dispersed arrangement of the first adjusting assembly 12, the lifting driving assembly 9 and the second adjusting assembly 33 can reduce the assembly and maintenance difficulty of the first adjusting assembly 12, the lifting driving assembly 9 and the second adjusting assembly 33.

[0059] Please refer to Figure 1 and Figure 2As shown, the vehicle measurement system 100, the crossbeam 7 further comprises a plurality of image acquisition modules 72 and a calibration piece 73, the image acquisition modules 72 are respectively arranged at opposite ends of the crossbeam body 71 along the first direction X, and the calibration piece 73 is arranged on the crossbeam body 71. During the measurement of the vehicle, the image acquisition modules 72 are used to acquire image information of parts (such as four wheels) of the vehicle, and the calibration piece 73 is used as a reference point for the sensing system of the vehicle to detect whether the sensing system of the vehicle is accurate.

[0060] In one embodiment, the first adjusting assembly 12 is further used to drive the column body 31 to move along the first direction X and the second direction Y. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0061] In this embodiment, the first direction X, the second direction Y and the third direction Z are arranged perpendicular to each other, and their specific directions are not limited. For example Figure 1 and Figure 2 As shown, for the convenience of description and understanding, the second direction Y is defined as being pointed by the column 3 to the vehicle, taking the driver's seat as the reference, the second direction Y is the front-rear direction, the first direction X is the left-right direction, and the third direction Z is the vertical direction.

[0062] In one embodiment, at each end of the crossbeam body 71 along the first direction X, the image acquisition module 72 comprises two cameras. The two cameras of one image acquisition module 72 correspond to two wheels on one side of the vehicle to be detected, respectively. For example, the two cameras located at the left end of the crossbeam 7 are used to acquire image information of the front left wheel and the rear left wheel.

[0063] One or more calibration pieces 73 can be arranged on the crossbeam body 71. A plurality of calibration pieces 73 are arranged on the crossbeam body 71 along the first direction X, such as Figure 1 As shown, further, at least one calibration piece 73 can slide on the crossbeam body 71 along the first direction X to meet the measurement requirements of different parts of the vehicle to be detected.

[0064] As shown in Figure 2 and Figure 3 In one embodiment, the first adjusting assembly 12 comprises a first translation piece 121, a second translation piece 123 and a first rotating piece 125, the first translation piece 121 is arranged on the base body 11, the second translation piece 123 is arranged on the first translation piece 121, and the first rotating piece 125 is arranged on the second translation piece 123. The first translation piece 121 can drive the second translation piece 123 and the first rotating piece 125 to move reciprocally along the left-right direction, the second translation piece 123 can drive the first rotating piece 125 to move along the front-rear direction, and the first rotating piece 125 can drive the column 3 to rotate around the first axis P.

[0065] Specifically, please refer toFigure 3 As shown, the first translation member 121 comprises a first screw rod 1212 and a first nut 1213 engaged with each other, and a first support plate 1214 fixedly connected with the first nut 1213; the second translation member 123 comprises a second screw rod 1232 and a second nut 1233 engaged with each other, and a second support plate 1234 fixedly connected with the second nut 1233; the first rotation member 125 comprises a first worm 1252 and a first worm wheel 1253 engaged with each other. The first screw rod 1212 has a central axis parallel to the first direction X, and is rotatably mounted on the base body 11 about the central axis thereof; the first nut 1213 is slidably mounted on the base body 11 along the first direction X. The second screw rod 1232 has a central axis parallel to the second direction Y, and is rotatably mounted on the first support plate 1214 about the central axis thereof; the second nut 1233 is slidably mounted on the first support plate 1214 along the second direction Y. The lower end of the column body 31 is coaxially connected with the first worm wheel 1253, and the first worm wheel 1253 is rotatably mounted on the second support plate 1234 about the first axis P; the first worm 1252 has a central axis perpendicular to the first axis P, and is rotatably mounted on the second support plate 1234 about the central axis thereof.

[0066] Rotation of the first screw rod 1212 can be converted into translation of the first nut 1213 along the first direction X, so as to drive the first support plate 1214 to reciprocally move along the first direction X. Rotation of the second screw rod 1232 can be converted into translation of the second nut 1233 along the second direction Y, so as to drive the second support plate 1234 to reciprocally move along the second direction Y. Rotation of the first worm 1252 can be converted into rotation of the first worm wheel 1253 perpendicular to the first worm 1252, so as to drive the column 3 to rotate about the first axis P.

[0067] Please continue to refer to Figure 3 As shown, in one embodiment, the first translation member 121 further comprises a first driving member 1211, the second translation member 123 further comprises a second driving member 1231, and the first rotation member 125 further comprises a third driving member 1251. The first driving member 1211 is fixedly mounted on the base body 11, and has an output end connected with the first screw rod 1212 for driving the first screw rod 1212 to rotate. The second driving member 1231 is fixedly mounted on the first support plate 1214, and has an output end connected with the second screw rod 1232 for driving the second screw rod 1232 to rotate. The third driving member 1251 is fixedly mounted on the second support plate 1234, and has an output end connected with the first worm 1252 for driving the first worm 1252 to rotate.

[0068] The rotation of the first screw rod 1212, the second screw rod 1232 and the first worm 1252 is controlled by the first driving member 1211, the second driving member 1231 and the third driving member 1251, without manual adjustment, so that the labor intensity can be saved; meanwhile, since the height of the base 1 is usually small, the positions of the first screw rod 1212, the second screw rod 1232 and the first worm 1252 are low, and the rotation of the first screw rod 1212, the second screw rod 1232 and the first worm 1252 is controlled by the first driving member 1211, the second driving member 1231 and the third driving member 1251, so that the inconvenience caused by the repeated bending of the operator can be avoided.

[0069] The first driving member 1211, the second driving member 1231 and the third driving member 1251 can be motors respectively.

[0070] In one embodiment, as shown in Figure 1 The vehicle measurement system 100 can include a master control module 83, which is fixedly arranged on the column body 31 and kept at a certain height, which can be a fixed height, for the operator to operate. The master control module 83 is connected with the first driving member 1211, the second driving member 1231 and the third driving member 1251, and the operator can operate the first driving member 1211, the second driving member 1231 and the third driving member 1251 through the master control module 83.

[0071] In addition, the master control module 83 can be connected with the lifting driving assembly 9 to control the start and stop of the lifting driving assembly 9. Specifically, the master control module 83 is connected with the jacking member 91 of the lifting driving assembly 9 and controls the lifting of the push rod of the jacking member 91.

[0072] Further, in one embodiment, the vehicle measurement system 100 can further include a control terminal (not shown), which is connected with the master control module 83 through wired communication or wireless communication. The operator can remotely control the master control module 83 on the control terminal, and then control the first translation member 121, the second translation member 123 and the first rotation member 125.

[0073] Please refer to Figure 3As shown, the first translation member 121 further comprises one or more first guide rails 1215 arranged along the first direction X and a first sliding block (not shown), the first guide rails 1215 are arranged on the base body 11, for example, on the surface of the lower shell 112 of the base body 11, the first sliding block is slidingly arranged on the first guide rails 1215, and the first support plate 1214 is further fixedly arranged on the first sliding block. The second translation member 123 further comprises a plurality of second guide rails 1235 arranged along the second direction Y and a second sliding block (not shown), the second guide rails 1235 are fixedly arranged on the first support plate 1214, the second sliding block is slidingly arranged on the second guide rails 1235, and the second support plate 1234 is further fixedly arranged on the second sliding block.

[0074] As shown in Figure 2 As shown, in the base body 11, a substantially closed accommodation space is defined between the lower shell 112 and the upper shell 111, and the first translation member 121, the second translation member 123 and the first rotation member 125 are arranged in the accommodation space. The first adjustment assembly 12 can further comprise a connecting member (not shown), which is fixedly connected between the first worm gear 1253 and the column body 31 and passes through the upper shell 111. A rotation bearing (not shown) can be arranged between the outer periphery of the connecting member and the upper shell 111 to support the rotation of the connecting member and reduce the friction between the connecting member and the base body 11.

[0075] The base body 11 needs to maintain the stability of the entire vehicle measurement system 100 in the vertical direction, so it needs to have a certain area and weight. In the embodiment of the application, the first adjustment assembly 12 is arranged in the accommodation space of the base body 11, which makes full use of the area and volume of the base body 11, and the first adjustment assembly 12 does not need to occupy space outside the base body 11; the weight of the base 1 as a whole is provided, and the center of gravity of the base 1 as a whole can be kept at a lower position.

[0076] In addition, the first adjustment assembly 12 does not need to follow the column body 31 to rise and fall, which further reduces the energy consumption of the entire vehicle measurement system 100.

[0077] Next, please refer to Figure 4 and Figure 5 As shown, the column body 31 comprises a fixed column 311 and a lifting column 312, the lower end of the fixed column 311 is fixedly connected to the connecting member of the first adjustment assembly 12 and remains fixed in the third direction Z, and the lifting column 312 is slidingly connected to the fixed column 311 along the third direction Z; the lifting drive assembly 9 is arranged on the fixed column 311 and is used to drive the lifting of the lifting column 312. The second adjustment assembly 33 is arranged on the lifting column 312 to rise and fall with the lifting column 312, thereby realizing the lifting adjustment of the cross beam 7.

[0078] In the embodiments of the present application, the lifting of the column body 31 is achieved by the relative sliding of the lifting column 312 and the fixed column 311. On the one hand, the column body 31 has a variable height, and when the vehicle measurement system 100 is transported, for example, the lifting column 312 can be lowered to the lowest point to facilitate storage and transportation.

[0079] Specifically, as shown in Figure 4 and Figure 5 In one embodiment, the lifting driving assembly 9 includes a jacking member 91 and a driving chain 92. The jacking member 91 is fixedly connected to the fixed column 311 and has a push rod that can be lifted away from the base 1 in the third direction Z. One end of the driving chain 92 is connected to the fixed column 311, and the driving chain 92 slides around the top end of the jacking member 91 (for example, the top end of the jacking member 91 is provided with a pulley). The other end of the driving chain 92 is fixedly connected to the second adjusting assembly 33.

[0080] In this way, when the push rod of the jacking member 91 is lifted by a distance, the parts of the driving chain 92 located on both sides of the jacking member 91 are lifted by the same distance, and the second adjusting assembly 33 moves by twice the distance. The purpose of this arrangement is to achieve a large distance movement of the second adjusting assembly 33 through a small movement of the jacking member 91, which is conducive to further reducing the height of the fixed column 311 in the third direction Z, and in turn, is conducive to reducing the overall height and volume of the vehicle measurement system 100, etc.

[0081] The form of the driving chain 92 is not limited and can be a chain, a steel wire rope, or a rope made of other materials, as long as it can bear the pulling force that causes the second adjusting assembly 33 to rise.

[0082] The end of the driving chain 92 connected to the fixed column 311 is located at the rear side of the fixed column 311, and the other end of the driving chain 92 is located at the front side of the fixed column 311. The second adjusting assembly 33 is located at the front side of the fixed column 311.

[0083] As shown in Figure 5 The column 3 further includes a bracket 313 and a guide roller 314. The bracket 313 is arranged at the front side of the fixed column 311 and is fixedly connected to the rear side of the second adjusting assembly 33 and the other end of the driving chain 92. The bracket 313 is connected to the guide roller 314, and the lifting column 312 is provided with a guide groove 3120 that is opened in the third direction Z. The guide roller 314 is arranged in the guide groove 3120. In this way, the other end of the driving chain 92 drives the bracket 313 and the second adjusting assembly 33 to rise together, and the cooperation of the guide roller 314 and the guide groove 3120 guides the movement of the bracket 313 in the third direction Z.

[0084] Further, by setting the shape of the guide roller 314, such as an I-shaped, and passing through the lifting column 312, the relative position between the bracket 313 and the lifting column 312 can be limited, avoiding the guide roller 314 from escaping from the guide groove 3120.

[0085] In an optional embodiment, as shown in Figure 4 and Figure 5 , the lifting column 312 can be arranged to slide on the fixed column 311.

[0086] In an optional embodiment, as shown in Figure 5 , the guide roller 314 is arranged on the opposite sides of the bracket 313 along the first direction X, and the guide groove 3120 is arranged on the opposite sides of the lifting column 312 along the first direction X. In more embodiments, the guide roller 314 and the guide groove 3120 can be arranged at other positions, such as the opposite sides of other directions, or multiple sides.

[0087] As shown in Figure 4 and Figure 5 , the fixed column 311 is a hollow structure with an opening at the upper end, and the jacking member 91 is arranged inside the fixed column 311, and the top end of the jacking member 91 can pass through the opening at the upper end of the fixed column 311. The purpose of this arrangement is to utilize the internal space of the fixed column 311, and at the same time, the fixed column 311 can provide certain protection for the jacking member 91. In more embodiments, the lifting column 312 can be arranged side by side with the fixed column 311.

[0088] Next, as shown in Figures 6 to 8 , in an embodiment, the second adjusting assembly 33 includes a fixed plate 331, a movable plate 332, a first fine adjustment module 333, and a second fine adjustment module 335. The fixed plate 331 is fixedly connected to the driving chain 92 of the lifting driving assembly 9 through the bracket 313, and the movable plate 332 is rotationally connected to the fixed plate 331 about a second axis Q. The first fine adjustment module 333 is connected between the fixed plate 331 and the movable plate 332, and is used to drive the movable plate 332 to rotate about the second axis Q. The second fine adjustment module 335 is arranged on the movable plate 332 and is used to be fixedly connected with the cross beam 7, and the second fine adjustment module 335 is used to drive the cross beam 7 to rotate about a third axis M.

[0089] The rotation of the cross beam 7 about the second axis Q represents the whole front and back pitching of the cross beam 7, and the rotation of the cross beam 7 about the third axis M represents the up and down swinging of the left and right sides of the cross beam 7.

[0090] In the embodiment of the present application, the second adjusting assembly 33 is used to drive the cross beam 7 to rotate around the second axis Q and the third axis M, and the two rotations are separated from the translation of the cross beam 7 in the first direction X and the second direction Y. The cross beam 7 does not need to make the translation movement in the first direction X and the second direction Y on the second adjusting assembly 33, so as not to affect the rotation of the cross beam 7 and the action of the first fine adjustment module 333 and the second fine adjustment module 335 in the second adjusting assembly 33.

[0091] By contrast, it is assumed that the second adjusting assembly 33 can also drive the cross beam 7 to translate in the first direction X. If the midpoint of the cross beam 7 in the first direction X is not aligned with the second adjusting assembly 33, the image acquisition modules 72 at both ends of the cross beam body 71 have different distances from the vehicle to be detected when the cross beam 7 performs the front-back pitching adjustment, and the images obtained will be different, affecting the detection result. Therefore, the pitching adjustment can be performed only after the cross beam 7 is adjusted in place along the first direction X.

[0092] Similarly, it is assumed that the second adjusting assembly 33 can also drive the cross beam 7 to translate in the first direction X. If the midpoint of the cross beam 7 in the first direction X is not aligned with the second adjusting assembly 33, the image acquisition modules 72 at both ends of the cross beam body 71 have different distances from the vehicle to be detected when the cross beam 7 performs the up-down swinging, affecting the detection result.

[0093] In the embodiment of the present application, the second fine adjustment module 335 is arranged on the movable plate 332 and fixedly connected with the cross beam 7 to drive the cross beam 7 to rotate around the third axis M. Therefore, the second fine adjustment module 335 can be fixedly connected with the midpoint of the cross beam 7 along the first direction X to ensure that the left and right sides of the cross beam 7 always remain symmetrical in the pitching adjustment process and the up-down swinging process. Such a setting can improve the adjustment efficiency. In the process of the translation of the cross beam along the first direction X, the second direction Y and the third direction Z, and the rotation around the first axis P, the left and right sides of the cross beam 7 always remain symmetrical.

[0094] In addition, the structure of the second adjusting assembly 33 can be simplified and the volume can be reduced.

[0095] For details, please refer to Figures 6 to 8 As shown in the figure, the first fine adjustment module 333 includes a third screw rod 3333, a third nut 3334 and a connecting rod 3338. The third screw rod 3333 is rotatably installed on the movable plate 332, and the central axis of the third screw rod 3333 is perpendicular to the first direction X. The third nut 3334 is engaged with the third screw rod 3333. Figure 9 As shown in the figure, the first end of the connecting rod 3338 is rotatably installed on the fixed plate 331 around the fourth axis N, and the other end of the connecting rod 3338 is rotatably connected to the third nut 3334 around the fifth axis L. The fifth axis L and the fourth axis N are both parallel to the second axis Q.

[0096] When the third screw rod 3333 rotates, the third nut 3334 moves along the third screw rod 3333, please refer to Figure 9 As shown, since the third nut 3334 is rotationally connected to the other end of the connecting rod 3338, it will push the movable plate 332 to rotate around the second axis Q to adapt to the length of the connecting rod 3338. As shown Figure 9 As shown, when the third nut 3334 slides upward along the third screw rod 3333, the included angle between the movable plate 332 and the fixed plate 331 becomes smaller.

[0097] Please refer to Figure 7 and Figure 8 In one embodiment, the first fine adjustment module 333 further includes a third guide rail 3336 and a third sliding block 3337. The third guide rail 3336 is fixedly arranged on the movable plate 332 and parallel to the central axis of the third screw rod 3333. The third sliding block 3337 is arranged on the third guide rail 3336, and the third sliding block 3337 is fixedly connected with the third nut 3334. When the third nut 3334 moves along the third screw rod 3333, it drives the third sliding block 3337 to move along the third guide rail 3336 synchronously. The other end of the connecting rod 3338 is rotationally connected to the third sliding block 3337 around the fifth axis L.

[0098] Through the sliding configuration of the third guide rail 3336 and the third sliding block 3337, the third sliding block 3337 can restrict the rotation of the third nut 3334 around the third screw rod 3333, without the need to set an additional circumferential limiting structure for the third nut 3334. Also, the torque of the third screw rod 3333 is avoided from being transmitted to the connecting rod 3338 through the third nut 3334, thereby avoiding the problems of deflection and easy jamming of the connecting rod 3338, and ensuring the smoothness of the forward and backward pitching adjustment of the movable plate 332.

[0099] In addition, through the configuration of the third guide rail 3336 and the third sliding block 3337, in the first direction X, the connecting rod 3338 can be arranged away from the third nut 3334. This is conducive to the arrangement of the structure within the first fine adjustment module 333, and also makes the second adjustment assembly 33 have a certain volume, so as to have a large enough connection area with the bracket 313, the beam body 71, etc., to ensure the connection stability between the second adjustment assembly 33 and the bracket 313, the beam body 71, etc.

[0100] As shown Figure 7 and Figure 8 In one embodiment, the third guide rail 3336 and the third sliding block 3337 are both configured as two, which are respectively located on both sides of the third screw rod 3333 in the first direction X. The connecting rod 3338 can be configured as a group and hinged with one of the third sliding blocks 3337, or configured as two groups and hinged with the third sliding blocks 3337, as shown Figure 8As shown.

[0101] In this way, the two third sliders 3337 slide on both sides of the third lead screw 3333, which makes the force on the two third sliders 3337 balanced, facilitating the sliding of the third sliders 3337.

[0102] As shown in Figure 7 and Figure 8 , the two third sliders 3337 are fixedly connected through the connecting rod 3340. Of course, in the second direction Y, the connecting rod 3340 avoids the third lead screw 3333.

[0103] Please continue to refer to Figure 7 and Figure 8 , the first fine adjustment module 333 further includes a first bevel gear 3332 and a second bevel gear 3335 engaged with each other, the first bevel gear 3332 is coaxially connected with one end of the third lead screw 3333, for example, is fixedly connected with the upper end of the third lead screw 3333, and the second bevel gear 3335 is rotatably installed on the movable plate 332. The central axis of the second bevel gear 3335 is perpendicular to the central axis of the first bevel gear 3332. By rotating the second bevel gear 3335, the rotation of the first bevel gear 3332 and the third lead screw 3333 can be realized.

[0104] One end of the second bevel gear 3335 is connected with the first hand wheel 3331 through the first rotating rod 3341, which is used for rotating the second bevel gear 3335 by the operator. The purpose of such arrangement is to allow the operator to operate the rotation of the third lead screw 3333 from the left side or the right side of the second adjustment assembly 33. This is considering that, as shown in Figure 1 , the upper part of the second adjustment assembly 33 is generally provided with an electric control box 82, so that the rotation operation of the third lead screw 3333 can avoid the electric control box 82.

[0105] In other optional embodiments, the first bevel gear 3332 and the second bevel gear 3335 can be omitted, and the first hand wheel 3331 can be directly arranged at the upper end or the lower end of the third lead screw 3333, if the space above or below the second adjustment assembly 33 allows.

[0106] Please refer to Figure 7 and Figure 8 , the side surface of the fixed plate 331 facing the movable plate 332 is provided with a first fixed block 3311, and the side surface of the movable plate 332 facing the fixed plate 331 is provided with a second fixed block 3321 (the second fixed block 3321 is shown separately from the movable plate 332 due to the viewing angle). The first fixed block 3311 and the second fixed block 3321 are hinged with the second axis Q as the axis.

[0107] In order to improve the hinge stability of the fixed plate 331 and the movable plate 332, as shown inFigure 7 and Figure 8 As shown in

[0108] As shown in Figure 7 and Figure 8 As shown in

[0109] The rotation of the second worm 3352 can be converted into the rotation of the second worm wheel 3353, so as to realize the rotation of the cross beam 7 around the third axis M, which can adjust the height of the left and right sides of the cross beam 7.

[0110] As shown in Figure 7 and Figure 8 As shown in

[0111] Optionally, the third support plate 3356 can also support the third screw rod 3333, for example, the lower end of the third screw rod 3333.

[0112] As shown in Figure 7 and Figure 8 As shown in

[0113] In addition, in order to facilitate the rotation of the third screw rod 3333, in an embodiment, as shown in Figure 7 and Figure 8As shown, the second fine adjustment module 335 further comprises a third bevel gear 3354 coaxially arranged at one axial end, such as the upper axial end, of the second worm 3352, and a fourth bevel gear 3355 rotatably arranged on the movable plate 332, with the central axis of the fourth bevel gear 3355 being perpendicular to the central axis of the third bevel gear 3354.

[0114] As shown, the fourth bevel gear 3355 is connected to the second hand wheel 3351 through a second rotating rod 3357, so as to facilitate the operation of the fourth bevel gear 3355 by the operator. Figure 6 and Figure 6 As shown, the fourth bevel gear 3355 is connected to the second hand wheel 3351 through a second rotating rod 3357, so as to facilitate the operation of the fourth bevel gear 3355 by the operator.

[0115] Similarly, the second hand wheel 3351 is arranged to avoid the rotation of the second worm 3352 from the electric control box 82. In other alternative embodiments, the second hand wheel 3351 can be directly connected to the upper axial end or the lower axial end of the second worm 3352, if allowed.

[0116] In one embodiment, the second hand wheel 3351 and the first hand wheel 3331 are oppositely arranged along the first direction X, respectively on the left side and the right side of the second adjustment module 33, which is adapted to the operation habit of the operator.

[0117] As shown in FIG. 1, ​ In one embodiment, the vehicle measurement system 100 further comprises a plurality of distance meters 81 (two are shown in FIG. 1). The distance meters 81 are arranged on the cross beam 7 and / or the second fine adjustment module 335, and move synchronously with the cross beam 7. The distance meters 81 are used to measure the distance between the cross beam 7 and the ground, and the distance between the cross beam 7 and the reference position in front. In one embodiment, the height of the base 1 is fixed, and the distance meters 81 can be used to measure the distance between the cross beam 7 and the upper surface of the base 1. ​ In addition, in one embodiment, the vehicle measurement system 100 further comprises a plurality of inclination detection elements (not shown) arranged on the cross beam 7, which are used to reflect whether the left and right portions of the cross beam 7 are horizontal, including the inclination angle of the cross beam body 71 relative to at least one of the first direction X, the second direction Y and the third direction X, thereby providing a reference for the adjustment of the cross beam 7. For example, the inclination detection elements can include a gyroscope, and the inclination detection elements can be arranged on the rear side of the cross beam body 71; further, a plurality of inclination detection elements can be arranged in an array on the cross beam body 71.

[0118]

[0119] ​In addition, in one embodiment, the base 1 of the vehicle measurement system 100 further comprises a wheel assembly (not shown) arranged at the lower end of the base body 11, so that the base body 11 and the first adjusting assembly 12 thereof can be moved on the ground, allowing the vehicle measurement system 100 to be quickly moved to the position required for use. The first translation member 121 and the second translation member 123 can have a smaller adjustment accuracy, which is conducive to improving the adjustment efficiency.

[0120] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle measurement system, characterized by, The base comprises a base body and a first adjusting assembly arranged on the base body; The column comprises a column body and a second adjusting assembly arranged on the column body, the column body is connected to the first adjusting assembly, the first adjusting assembly is used to drive the column body to rotate around a first axis, the first axis is parallel to a third direction; The lifting driving assembly is arranged on the column body and is used to drive the second adjusting assembly to translate along the third direction; The second adjusting assembly is connected to the cross beam and is used to drive the cross beam to rotate around a second axis and a third axis; the second axis is parallel to the first direction, the third axis is perpendicular to the first direction; and the first direction is perpendicular to the third direction. The first adjusting assembly comprises a first rotating member, the first rotating member comprises a first worm and a first worm wheel in engagement; a central axis of the first worm wheel is the first axis, the first worm wheel is rotatably installed on the base body; and the column body is coaxially connected to the first worm wheel. The first adjusting assembly further comprises a first translating member and a second translating member, the first translating member comprises a first screw rod and a first nut in engagement, and a first support plate fixedly connected to the first nut; the second translating member comprises a second screw rod and a second nut in engagement, and a second support plate fixedly connected to the second nut; 2. The vehicle measurement system of claim 1, wherein, An axial direction of the first screw rod is parallel to the first direction, the first screw rod is rotatably installed on the base body; an axial direction of the second screw rod is parallel to a second direction, the second screw rod is rotatably installed on the first support plate; the first worm wheel is rotatably installed on the second support plate; and the second direction is perpendicular to the first direction and the third direction.

3. The vehicle measurement system of claim 2, wherein, The first translating member further comprises a first driving member arranged on the base body and connected to the first screw rod; the second translating member further comprises a second driving member arranged on the first support plate and connected to the second screw rod; and the first rotating member further comprises a third driving member arranged on the second support plate and connected to the first worm. A master control module is further arranged, the master control module is connected to the lifting driving assembly, the first driving member, the second driving member and the third driving member, and is used to control the lifting driving assembly, the first driving member, the second driving member and the third driving member.

4. The vehicle measurement system of claim 3, wherein, The column body comprises a fixed column and a lifting column, the fixed column is connected to the first adjusting assembly, and the lifting column is slidingly connected to the fixed column along the third direction; the lifting driving assembly comprises a jacking member and a driving chain, the jacking member is fixedly connected to the fixed column and comprises a push rod capable of lifting in the third direction, one end of the driving chain is connected to the fixed column, the driving chain slidingly passes through a top end of the jacking member, and the other end of the driving chain is fixedly connected to the second adjusting assembly.

5. The vehicle measurement system of claim 4, wherein, ​ 6. The vehicle measurement system of claim 1, wherein, ​ 7. The vehicle measurement system of claim 6, wherein, The column body further comprises a support fixedly connected with the second adjusting assembly and the other end of the driving chain, opposite sides of the support are respectively provided with guide rollers, the lifting column is sleeved on the fixed column, opposite sides of the lifting column are both provided with guide grooves opened along the third direction, and the guide rollers are rollingly arranged in the guide grooves.

8. The vehicle measurement system of any one of claims 1 to 7, wherein, The second adjusting assembly comprises a fixed plate, a movable plate, a first fine adjustment module and a second fine adjustment module; the fixed plate is fixedly connected with the lifting driving assembly, the movable plate is rotationally connected to the fixed plate about the second axis, the first fine adjustment module is connected between the fixed plate and the movable plate and is used for driving the movable plate to rotate about the second axis, and the second fine adjustment module is arranged on the movable plate and is used for being connected with the cross beam; the second fine adjustment module is used for driving the cross beam to rotate about the third axis.

9. The vehicle measurement system of claim 8, wherein, The first fine adjustment module comprises a third screw rod, a third nut and a connecting rod; the third screw rod is rotationally installed on the fixed plate, a central axis of the third screw rod is perpendicular to the second direction, the third nut is installed on the third screw rod, a first end of the connecting rod is rotationally connected to the fixed plate about a fourth axis, a second end of the connecting rod is rotationally connected to the third nut about a fifth axis, and the fourth axis and the fifth axis are parallel to the second axis; and the second direction is perpendicular to the first direction and the third direction.

10. The vehicle measurement system of claim 9, wherein, The first fine adjustment module further comprises a third guide rail and a third sliding block; the third guide rail is fixedly installed on the movable plate and is parallel to the third screw rod, and the third sliding block is arranged on the third guide rail; and the second end of the connecting rod is rotationally connected to the third sliding block about the fifth axis.

11. The vehicle measurement system of claim 8, wherein, The second fine adjustment module comprises a second worm and a second worm wheel in engagement; the second worm is rotationally installed on the movable plate, a central axis of the second worm is perpendicular to the first direction, the second worm wheel is rotationally installed on the movable plate, and a central axis of the second worm wheel is perpendicular to the second direction; the cross beam is fixedly connected with the second worm wheel; and the second direction is perpendicular to the first direction and the third direction.

12. The vehicle measurement system of any one of claims 1 to 7, wherein, The cross beam comprises a cross beam body and an inclination detection element arranged on the cross beam body; the inclination detection element is used for measuring an inclination angle of the cross beam body relative to at least one of the first direction, the second direction and the third direction; and the second direction is perpendicular to the first direction and the third direction.

Images