Road durability test wheel loading device

Abstract

The utility model discloses a wheel loading device for a road durability test, and the device comprises two supporting frames which are symmetrically arranged, the bottoms of the supporting frames are fixedly connected with a pedestal, the bottom of the pedestal is provided with a linear motor, the lower end of the interior of the linear motor is slidably connected with a first guide rail, and the lower end of the interior of the first guide rail is slidably connected with a second guide rail. Second guide rails are symmetrically and fixedly connected to one side of the top of the supporting frame, the longitudinal position of a loading device composed of a hydraulic cylinder and a loading plate is changed by driving a linear motor, then the loading device conducts transverse position loading under threaded connection of a screw rod and a movable base through a driving motor, and after position adjustment is completed, the loading device is driven by a driving motor to conduct transverse position loading. A certain load is applied to the wheel by driving the loading device, and then data such as the load, the rotating speed, the vibration and the temperature of the wheel are collected through the load sensor and the dynamic data collector, so that the problem that most of the existing loading devices are fixed and immovable devices is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel loading, and in particular relates to a wheel loading device for a road durability test. Background Art

[0002] The wheel loading device for road durability test is a device used to test the durability performance of a vehicle under simulated actual road conditions. This device usually consists of a loading system, a control system, a data acquisition system, and a test wheel.

[0003] At present, it is necessary to carry out loading tests on the wheels of vehicles during the vehicle production process. However, most of the existing wheel loading devices are fixed and immovable devices, which creates certain limitations. The vehicle needs to be moved to the bottom of the loading device to conduct a side view of the wheel load. When the loading position is offset, it will lead to inaccurate data collection, thus bringing certain inconveniences. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a wheel loading device for road durability test, so as to solve the problem proposed in the above background technology that the wheels of the vehicle need to be loaded during the vehicle production process, and the existing wheel loading devices are mostly fixed and immovable devices, which has certain limitations. The vehicle needs to be moved to the bottom of the loading device to perform a side view of the wheel load. When the loading position is offset, it will lead to inaccurate data collection, thus bringing certain inconveniences.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a road durability test wheel loading device, comprising a support frame, wherein two support frames are symmetrically arranged, the bottom of the support frame is fixedly connected to a base, a linear motor is arranged at the bottom of the base, a first guide rail is slidably connected to the lower end of the linear motor, a second guide rail is symmetrically fixedly connected to one side of the top of the support frame, second limit blocks are symmetrically fixedly connected to both ends of the second guide rail, a screw is arranged between the two second limit blocks, the screw is fixedly connected to the output end of the motor, a moving seat is threadedly connected to the outer side of the screw, a hydraulic cylinder is fixedly connected to the bottom of the moving seat, a guide seat is symmetrically fixedly connected to one side of the top of the hydraulic cylinder, and a loading plate is fixedly connected to the output end of the hydraulic cylinder.

[0006] Preferably, the base is fixedly connected to the linear motor via bolts.

[0007] Preferably, both ends of the first guide rail are fixedly connected with first limit blocks.

[0008] Preferably, the screw is rotatably connected to the second limit block via a bearing seat.

[0009] Preferably, the motor is fixedly connected to one side of the second limiting block.

[0010] Preferably, the guide seat is slidably connected to the outer side of the second guide rail.

[0011] Preferably, a flexible pad is fixedly connected to the bottom of the loading plate, and ventilation holes are provided inside the flexible pad.

[0012] Preferably, a load sensor is fixedly connected between the loading plate and the flexible pad, a dynamic data collector is fixedly connected to one side of the top of the loading plate, a support rod is fixedly connected to the outside of the hydraulic cylinder, and a camera is fixedly connected to one end of the support rod.

[0013] Compared with the prior art, the utility model provides a wheel loading device for road durability test, which has the following beneficial effects:

[0014] 1. The utility model sets a wheel loading device for road durability test. When in use, the vehicle is moved to the bottom of the device, and then the camera detects the position of the wheel test loading. Then, the linear motor is driven to change the longitudinal position of the loading device composed of the hydraulic cylinder and the loading plate. Then, the motor is driven to make the loading device implement the lateral loading position under the threaded connection between the screw and the moving seat. After the position adjustment is completed, a certain load is applied to the wheel by driving the loading device. Then, the load sensor and dynamic data collector are provided to collect the load, rotation speed, vibration, temperature and other data of the wheel, thereby solving the problem that most of the existing loading devices are fixed and immovable devices.

[0015] 2. The utility model provides a flexible pad at the bottom of the loading device to protect the vehicle, and a plurality of through holes are provided inside the flexible pad, so that a buffering effect can be achieved during the loading process, thereby reducing damage to the wheel and facilitating heat dissipation.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the axle-side structure of one side of a wheel loading device for a road durability test proposed by the utility model;

[0019] Figure 2This is a schematic diagram of the axle side structure of the other side of a wheel loading device for a road durability test proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the flexible pad structure of a wheel loading device for a road durability test proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the camera structure of a wheel loading device for road durability testing proposed by the utility model;

[0022] Figure 5 This is a bottom view structural schematic diagram of a wheel loading device for a road durability test proposed by the utility model;

[0023] Figure 6 This is a schematic diagram of the hydraulic cylinder structure of a wheel loading device for a road durability test proposed by the utility model;

[0024] In the figure: support frame 1, base 2, linear motor 3, first guide rail 4, first limit block 5, second guide rail 6, second limit block 7, screw 8, bearing seat 9, motor 10, moving seat 11, guide seat 12, hydraulic cylinder 13, loading plate 14, flexible pad 15, load sensor 16, dynamic data collector 17, support rod 18, camera 19. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6The utility model provides a technical solution: a wheel loading device for a road durability test, comprising a support frame 1, wherein two support frames 1 are symmetrically arranged, wherein a base 2 is fixedly connected to the bottom of the support frame 1, a linear motor 3 is arranged at the bottom of the base 2, a first guide rail 4 is slidably connected to the lower end of the inner part of the linear motor 3, a second guide rail 6 is symmetrically fixedly connected to one side of the top of the support frame 1, a second limit block 7 is symmetrically fixedly connected to both ends of the second guide rail 6, a screw rod 8 is arranged between the two second limit blocks 7, the screw rod 8 is fixedly connected to the output end of the motor 10, a moving seat 11 is threadedly connected to the outer side of the screw rod 8, a hydraulic cylinder 13 is fixedly connected to the bottom of the moving seat 11, and a hydraulic cylinder 13 is fixedly connected to the bottom of the hydraulic cylinder 13. A guide seat 12 is symmetrically fixedly connected to one side of the top of the hydraulic cylinder 13, and a loading plate 14 is fixedly connected to the output end of the hydraulic cylinder 13. The camera 19 detects the position of the wheel test loading, and then the linear motor 3 is driven to change the longitudinal position of the loading device composed of the hydraulic cylinder 13 and the loading plate 14, and then the motor 10 is driven to make the loading device implement the lateral loading position under the threaded connection between the screw 8 and the moving seat 11. When the position adjustment is completed, a certain load is applied to the wheel by driving the loading device, and then the load sensor 16 and the dynamic data collector 17 are provided to collect the wheel's load, speed, vibration, temperature and other data.

[0027] In the present invention, preferably, the base 2 is fixedly connected to the linear motor 3 by bolts.

[0028] In the present invention, preferably, both ends of the first guide rail 4 are fixedly connected with first limit blocks 5 .

[0029] In the present invention, preferably, the screw rod 8 is rotatably connected to the second limit block 7 via a bearing seat 9 .

[0030] In the present invention, preferably, the motor 10 is fixedly connected to one side of the second limiting block 7 .

[0031] In the present invention, preferably, the guide seat 12 is located on the outer side of the second guide rail 6 and is slidably connected.

[0032] In the present invention, preferably, a flexible pad 15 is fixedly connected to the bottom of the loading plate 14 , and air holes are provided inside the flexible pad 15 .

[0033] In the utility model, preferably, a load sensor 16 is fixedly connected between the loading plate 14 and the flexible pad 15, a dynamic data collector 17 is fixedly connected to one side of the top of the loading plate 14, a support rod 18 is fixedly connected to the outside of the hydraulic cylinder 13, and a camera 19 is fixedly connected to one end of the support rod 18.

[0034] The working principle and use process of the utility model: When in use, the device includes two symmetrically arranged support frames 1, the bottoms of which are fixedly connected to the base 2. A linear motor 3 is installed at the bottom of the base 2, and the lower end inside the linear motor 3 is slidably connected to the first guide rail 4. Such a design can realize the precise adjustment of the longitudinal position of the loading device. On one side of the top of the support frame 1, a second guide rail 6 is symmetrically fixedly connected, and the two ends of the second guide rail 6 are symmetrically fixedly connected to the second limit blocks 7. A screw 8 is arranged between the two second limit blocks 7, one end of the screw 8 is fixedly connected to the output end of the motor 10, and the other outer side is connected to the moving seat 11 through a thread. A hydraulic cylinder 13 is fixedly connected to the bottom of the moving seat 11, and a guide seat 12 is symmetrically fixedly connected to one side of the top of the hydraulic cylinder 13. The output end of the hydraulic cylinder 13 is fixedly connected to the loading plate 14, which is the part that applies the load to the wheel. In order to detect the position of the wheel test loading, a camera 19 is provided in the device, which can accurately capture the position information of the loading plate 14. According to this information, the longitudinal position of the loading device composed of the hydraulic cylinder 13 and the loading plate 14 is changed by driving the linear motor 3. In addition, by driving the motor 10, the loading device implements lateral loading position adjustment under the threaded connection between the screw 8 and the moving seat 11. After the position adjustment is completed, the loading device is driven to apply a certain load to the wheel. At this time, the load sensor 16 and the dynamic data collector 17 start working to collect data such as the load, speed, vibration, and temperature of the wheel. The base 2 is fixedly connected to the linear motor 3 by bolts, which enhances the stability of the connection; the first limit blocks 5 are fixedly connected to both ends of the first guide rail 4 to ensure the accurate limit of the first guide rail; the screw 8 is rotatably connected to the second limit block 7 through the bearing seat 9, so that the movement of the screw is smoother; the motor 10 is fixedly connected to one side of the second limit block 7 to facilitate the control of the rotation of the screw and the moving seat; the guide seat 12 is located on the outer side of the second guide rail 6 and is slidably connected to ensure the accurate movement trajectory of the hydraulic cylinder and the guide seat; the bottom of the loading plate 14 is fixedly connected to a flexible pad 15, and air holes are opened inside, which can reduce damage to the wheel and facilitate heat dissipation; a load sensor 16 is fixedly connected between the loading plate 14 and the flexible pad 15, a dynamic data collector 17 is fixedly connected to one side of the top of the loading plate 14, a support rod 18 is fixedly connected to the outer side of the hydraulic cylinder 13, and a camera 19 is fixedly connected to one end of the support rod 18. The arrangement of these components optimizes the structure and function of the device and improves the accuracy and efficiency of the test.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheel loading device for a road durability test, comprising a support frame (1), characterized in that: The support frames (1) are symmetrically provided with two of them, the bottom of the support frame (1) is fixedly connected with a base (2), the bottom of the base (2) is provided with a linear motor (3), the lower end of the linear motor (3) is slidably connected with a first guide rail (4), one side of the top of the support frame (1) is symmetrically fixedly connected with a second guide rail (6), both ends of the second guide rail (6) are symmetrically fixedly connected with second limit blocks (7), a screw rod (8) is provided between the two second limit blocks (7), the screw rod (8) is fixedly connected to the output end of the motor (10), the outer side of the screw rod (8) is threadedly connected with a moving seat (11), the bottom of the moving seat (11) is fixedly connected with a hydraulic cylinder (13), one side of the top of the hydraulic cylinder (13) is symmetrically fixedly connected with a guide seat (12), and the output end of the hydraulic cylinder (13) is fixedly connected with a loading plate (14).

2. A wheel loading device for road durability testing according to claim 1, characterized in that: The base (2) is fixedly connected to the linear motor (3) via bolts.

3. The wheel loading device for road durability test according to claim 1, characterized in that: Both ends of the first guide rail (4) are fixedly connected with first limit blocks (5).

4. The wheel loading device for road durability test according to claim 1, characterized in that: The screw rod (8) is rotatably connected to the second limit block (7) via a bearing seat (9).

5. The wheel loading device for road durability test according to claim 1, characterized in that: The motor (10) is fixedly connected to one side of the second limiting block (7).

6. The wheel loading device for road durability test according to claim 1, characterized in that: The guide seat (12) is located on the outer side of the second guide rail (6) and is slidably connected thereto.

7. The wheel loading device for road durability test according to claim 1, characterized in that: A flexible pad (15) is fixedly connected to the bottom of the loading plate (14), and ventilation holes are provided inside the flexible pad (15).

8. The wheel loading device for road durability test according to claim 1, characterized in that: A load sensor (16) is fixedly connected between the loading plate (14) and the flexible pad (15), a dynamic data collector (17) is fixedly connected to one side of the top of the loading plate (14), a support rod (18) is fixedly connected to the outside of the hydraulic cylinder (13), and a camera (19) is fixedly connected to one end of the support rod (18).

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