Rotating hub spacing adjusting mechanism and test board

Abstract

The utility model discloses a rotating hub spacing adjusting mechanism, and belongs to the technical field of vehicle detection. The rotating hub distance adjusting mechanism comprises a bottom frame. The first rotating hub is installed on the bottom frame and rotationally connected with the bottom frame. The second rotating hub and the first rotating hub are arranged in parallel, and the second rotating hub is slidably connected with the bottom frame; the lead screw mechanism is installed on the bottom frame, and one end is connected with the second rotating hub. The rotating hub spacing adjusting mechanism is simple in structure, realizes accurate adjustment, and can meet the test requirements of micro new energy vehicles and vehicles with smaller tire sizes or lower chassis. By arranging the screw rod mechanism and the moving mechanism, the distance between the two rotating hubs can be adjusted, so that the sinkage of a vehicle during testing is adjusted, and when a vehicle with a lower chassis or a vehicle with a smaller tire enters a testing position, the chassis does not interfere with the surface of equipment or the vertexes of the rotating hubs; the trafficability of the vehicle and the safety in the test process are ensured, and the adaptation capability of the test bench to the tire is also improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of rotation hub spacing adjustment mechanism and test bench, belong to vehicle detection technical field. BACKGROUND

[0002] After automobile assembly is completed, the chassis and wheels of the automobile need to be debugged on the rotation hub test bench before being offline, to ensure that each vehicle meets the quality standards before being shipped.

[0003] During vehicle testing, the vehicle will sink to varying degrees when entering the test position. The rotation hub group spacing of the existing rotation hub test bench is a fixed value, and the sinking amount of the vehicle during testing is also a fixed value, which cannot be adjusted. This results in interference between the chassis and the equipment surface or the rotation hub vertex when the chassis of a vehicle with a height below 120mm enters the test position, which cannot guarantee the passability of the vehicle, and thus cannot perform normal testing. In addition, the existing rotation hub test bench has limitations in terms of tire adaptation capability. With the increasing number of small-sized new energy vehicles and vehicles with small-sized tires on the market, and due to the inability to adjust the rotation hub group spacing, the passability of the existing equipment cannot meet the testing requirements of these vehicles. Even if some rotation hub test benches can adjust the rotation hub group spacing, they cannot achieve precise adjustment. SUMMARY

[0004] The utility model provides a kind of rotation hub spacing adjustment mechanism and test bench, to solve the vehicle with the chassis below 120mm when entering test position, easy to interfere with the surface of equipment or rotation hub vertex, cannot guarantee the passability of the vehicle, affect the normal testing of vehicle, and the vehicle with small-sized tire cannot meet the testing requirements, cannot realize the problem of precise adjustment.

[0005] The utility model realizes the following technical solutions:

[0006] In a first aspect, the utility model provides a kind of rotation hub spacing adjustment mechanism, including

[0007] bottom frame;

[0008] first rotation hub, installation is in the bottom frame, and is rotatably connected with the bottom frame;

[0009] second rotation hub, it is parallelly arranged with the first rotation hub, and the second rotation hub is slidably connected with the bottom frame;

[0010] screw rod mechanism, installation is in the bottom frame, and one end is connected with the second rotation hub.

[0011] In a kind of embodiment of the utility model, including base, the second rotation hub is installed on the base, and is rotatably connected with the base.

[0012] In an embodiment of the utility model, the base is provided with a mounting plate, one end of the screw rod mechanism is connected with the second rotary hub through the mounting plate.

[0013] In an embodiment of the utility model, the base and the bottom frame are connected through the moving mechanism.

[0014] In an embodiment of the utility model, the moving mechanism comprises a guide rail and a sliding block, the guide rail is installed on the bottom frame, and the sliding block is installed on the base.

[0015] In an embodiment of the utility model, the driving mechanism is connected with the screw rod mechanism through the transmission mechanism.

[0016] In an embodiment of the utility model, a position sensor is further included, and the position sensor is installed on the bottom frame. The position sensor can detect the position of the second rotary hub in real time and feed back the position information of the second rotary hub to the control system. The control system controls the movement of the screw rod mechanism through the driving mechanism to realize stepless adjustment of the distance between the first rotary hub and the second rotary hub.

[0017] In an embodiment of the utility model, the screw rod mechanism is a positioning screw rod. Through the screw transmission relationship between the screw rod and the nut, accurate linear motion and positioning are realized, and stepless adjustment of the distance between the first rotary hub and the second rotary hub is realized.

[0018] In an embodiment of the utility model, the diameter of the first rotary hub is greater than the diameter of the second rotary hub. The vehicle test process can effectively offset the movement due to inertia.

[0019] In a second aspect, the utility model provides a test bench comprising the rotary hub distance adjustment mechanism.

[0020] Advantages

[0021] The rotary hub distance adjustment mechanism provided by the utility model has simple structure and realizes accurate adjustment, and can meet the test requirements of small new energy vehicles, vehicles with small tires or chassis below 120mm. Through the screw rod mechanism and the moving mechanism, the position of the second rotary hub can be adjusted, the distance between the two rotary hubs is adjusted, the sinking amount of the vehicle during testing is adjusted, the chassis of the vehicle with a chassis below 120mm or the vehicle with small tires does not interfere with the surface of the equipment or the vertex of the rotary hub when entering the test position, the passability of the vehicle and the safety during testing are ensured, and the adaptation ability of the test bench to the tires is increased.

[0022] The screw mechanism of the rotating hub distance adjusting mechanism is a positioning screw, which can not only accurately adjust and realize millimeter-level rotating hub distance adjusting precision, but also enable the second rotating hub to be fixed through self-locking of the screw mechanism after being moved to a proper position. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 A perspective view of the rotating hub distance adjusting mechanism is provided in the present application.

[0024] Fig. 2 A top view of the rotating hub distance adjusting mechanism is provided in the present application.

[0025] Fig. 3 A right view of the rotating hub distance adjusting mechanism is provided in the present application.

[0026] In the figure: 1, bottom frame; 2, first rotating hub; 3, second rotating hub; 4, base; 41, mounting plate; 5, moving mechanism; 51, guide rail; 52, sliding block; 6, screw mechanism; 7, transmission mechanism; 8, driving mechanism; 9, position sensor; 10, support. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the present application, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them.Moreover, first feature "on", "above" and "on" second feature includes that first feature is directly above and obliquely above second feature, or only indicates that first feature is higher than second feature in horizontal height.First feature "under", "below" and "under" second feature includes that first feature is directly below and obliquely below second feature, or only indicates that first feature is lower than second feature in horizontal height.

[0030] As Figs. 1 to 3 The utility model discloses a hub spacing adjustment mechanism for the debugging of automobile chassis and wheels, which comprises a bottom frame 1, a first hub 2 and a second hub 3. The first hub 2 and the second hub 3 are both drum structures. The first hub 2 is fixedly installed on one side of the bottom frame 1 and is rotatably connected to the bottom frame 1. The second hub 3 is installed on one side of the first hub 2 and is parallel to the first hub 2. The second hub 3 is installed on the bottom frame 1 through a base 4 and a moving mechanism 5. The second hub 3 is rotatably connected to the base 4. The base 4 is installed with the moving mechanism 5 on the side away from the second hub 3. The moving mechanism 5 is connected to the bottom frame 1 on the side away from the base 4. The moving mechanism 5 can move the second hub 3 in the direction perpendicular to the axis of the second hub 3, thereby adjusting the spacing between the hubs, increasing the adaptability of the hub test bench to tires, and enabling the hub test bench to be adjusted according to the size of the tires to meet the testing requirements of smaller vehicles. Meanwhile, by adjusting the spacing between the hubs, the lower vehicles can be lifted to prevent the vehicle chassis from interfering with the surface of the equipment or the top point of the hub, thereby affecting the normal testing.

[0031] Further, in some embodiments, the moving mechanism 5 comprises guide rails 51 and sliding blocks 52. The moving mechanism 5 has two, which are installed on both sides of the base 4. The guide rails 51 are installed on the bottom frame 1 to provide guidance for the movement of the base 4. The sliding blocks 52 are installed on the base 4. The guide rails 51 cooperate with the sliding blocks 52 to enable the base 4 to move on the bottom frame 1.

[0032] In some embodiments, the bottom frame 1 is provided with a screw rod mechanism 6, which is located on the side of the second rotary hub 3 away from the first rotary hub 2. The base 4 is provided with a mounting plate 41, and one end of the screw rod mechanism 6 is connected with the mounting plate 41. The screw rod mechanism 6 drives the mounting plate 41 to move, thereby driving the base 4 and the second rotary hub 3 to move linearly on the bottom frame 1. The bottom frame 1 is also provided with a driving mechanism 8, which is connected with the screw rod mechanism 6 through a transmission mechanism 7. The driving mechanism 8 transmits power to the screw rod mechanism 6 through the transmission mechanism 7, so that the screw rod mechanism 6 moves, and the base 4 and the second rotary hub 3 are driven to move, thereby realizing the adjustment of the distance between the rotary hubs.

[0033] Further, in some embodiments, the screw rod mechanism 6 is a positioning screw rod, which realizes precise linear motion and positioning through the screw transmission relationship between the screw rod and the nut, and realizes stepless adjustment of the distance between the first rotary hub 2 and the second rotary hub 3. The driving mechanism 8 is a screw rod motor, which drives the screw rod mechanism 6 to move reciprocally by controlling the forward and reverse rotation of the driving mechanism 8.

[0034] In some embodiments, the bottom frame 1 is also provided with a position sensor 9, which is connected with the bottom frame 1 through a support 10. The position sensor 9 can detect the position of the second rotary hub 3 in real time, and feed back the position information of the second rotary hub 3 to a control system. The control system controls the movement of the screw rod mechanism 6 by controlling the driving mechanism 8, thereby realizing stepless adjustment of the distance between the first rotary hub 2 and the second rotary hub 3.

[0035] Optionally, in some embodiments, the diameters of the first rotary hub 2 and the second rotary hub 3 can be the same or different. Preferably, in the present embodiment, the first rotary hub 2 is a driving wheel, and the second rotary hub 3 is an idler wheel. The diameter of the second rotary hub 3 is smaller than that of the first rotary hub 2, which can effectively offset the movement due to inertia during vehicle testing.

[0036] In addition, the utility model also provides a test bench, test bench includes above-mentioned rotary hub distance adjustment mechanism, a plurality of rotary hub distance adjustment mechanisms are installed on the test bench symmetrically and are connected with the test bench through the bottom frame 1. The vehicle drives to the test bench, and the sinking amount of the vehicle is adjusted through the rotary hub distance adjustment mechanism. The vehicle with low chassis or small tire size is prevented from interfering with the surface of the equipment or the vertex of the rotary hub, and the safety of the vehicle during testing is ensured.

[0037] The utility model discloses a working principle: vehicle drives to the test platform, and control system controls the rotation of driving mechanism 8, and driving mechanism 8 transmits power through transmission mechanism 7 and drives to screw rod mechanism 6, and drives screw rod mechanism 6 to move, and screw rod mechanism 6 moves base 4 and second rotary hub 3 through mounting plate 41, and position sensor 9 detects the position of second rotary hub 3 in real time and sends position information to control system. When second rotary hub 3 moves to the appropriate position, driving mechanism 8 stops rotating, screw rod mechanism 6 stops moving, and is self-locked, and makes second rotary hub 3 fixed. By moving second rotary hub 3, the distance between two rotary hubs is adjusted, thereby adjusting the sinking amount of vehicle during testing, so that the chassis of the vehicle below 120mm or the vehicle with smaller tires will not interfere with the device surface or the rotary hub vertex when entering the test position, which ensures the passability of the vehicle and the safety during testing, and also increases the adaptation ability of the test platform to the tire. Adopting screw rod mechanism 6 to adjust the position of second rotary hub 3 can not only accurately adjust the millimeter level rotary hub spacing adjustment precision, but also enable second rotary hub 3 to be fixed by self-locking of screw rod mechanism 6 after moving to the appropriate position. The rotary hub spacing adjustment mechanism has simple structure, realizes accurate adjustment, and can meet the testing needs of micro new energy vehicles, vehicles with smaller tires or chassis below 120mm and the like.

[0038] The technical features of the above embodiments can be combined arbitrarily, and to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0039] The above embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the invention patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model.

[0040] The principle and implementation manner of the utility model are described by applying specific embodiments in the paper, and the above embodiment description is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principle of the utility model, a number of improvements and modifications can be made to the utility model, and these improvements and modifications also fall within the protection scope of the claims of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A turnbuckle pitch adjustment mechanism, characterized by, Comprising: a bottom frame (1); a first rotary hub (2) mounted on the bottom frame (1) and rotatably connected with the bottom frame (1); a second rotary hub (3) arranged in parallel with the first rotary hub (2), the second rotary hub (3) being slidably connected with the bottom frame (1); a screw mechanism (6) mounted on the bottom frame (1) and having one end connected with the second rotary hub (3).

2. A hub spacing adjustment mechanism according to claim 1, wherein The second rotary hub (3) is mounted on a base (4) and rotatably connected with the base (4).

3. A hub spacing adjustment mechanism according to claim 2, wherein The base (4) is provided with a mounting plate (41), and one end of the screw mechanism (6) is connected with the second rotary hub (3) through the mounting plate (41).

4. A hub spacing adjustment mechanism according to claim 3, wherein A moving mechanism (5) is further included, and the base (4) is slidably connected with the bottom frame (1) through the moving mechanism (5).

5. A hub spacing adjustment mechanism according to claim 4, wherein The moving mechanism (5) includes a guide rail (51) and a sliding block (52), the guide rail (51) is mounted on the bottom frame (1), and the sliding block (52) is mounted on the base (4).

6. A hub spacing adjustment mechanism according to claim 1, wherein A driving mechanism (8) and a transmission mechanism (7) are further included, and the driving mechanism (8) is connected with the screw mechanism (6) through the transmission mechanism (7).

7. A hub spacing adjustment mechanism according to claim 1 wherein, A position sensor (9) is further included, and the position sensor (9) is mounted on the bottom frame (1).

8. A hub spacing adjustment mechanism according to claim 6, wherein The screw mechanism (6) is a positioning screw.

9. A hub spacing adjustment mechanism according to claim 3, wherein The diameter of the first rotary hub (2) is greater than the diameter of the second rotary hub (3).

10. A test station characterized by, The bottom frame (1) is mounted on the test bench. The bottom frame (1) is mounted on the test bench.

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