Constraint support system for five-belt mobile floor system
By designing a constraint support system for a five-belt moving floor system, the problems of high cost and measurement error in existing devices are solved, enabling accurate simulation and measurement of different vehicles, adapting to various vehicle models, and improving the accuracy and safety of measurements.
Patent Information
- Application Number
- CN202511801832.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-02-03
AI Technical Summary
Existing mobile floor devices are mainly imported from abroad, which are costly and have limited room for improvement and upgrading. Traditional single-belt systems have interference errors and accuracy problems in force measurement tests, making it difficult to adapt to the measurement needs of different vehicles.
Design a constraint support system for a five-belt movable floor system. The system employs four symmetrically arranged constraint support units, combined with an XY moving platform, a lifting device, a circular grating, and a unidirectional sensor, to achieve overall lifting, moving, and deflection of the vehicle. The system also monitors and controls the vehicle's position in real time through a servo system.
It enables accurate simulation and measurement of different vehicles, avoids interference errors, adapts to different vehicle models, and improves the accuracy and safety of measurement.
Smart Images
Figure CN121453324A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of automobile wind tunnel technology, and particularly relates to a restraint support system for a five-belt moving floor system. BACKGROUND
[0002] The existing moving belt floor devices of all the automobile wind tunnels built in China are all introduced from abroad, and the costs of equipment procurement, use and maintenance are extremely high, and there are many limitations in later improvement and upgrading and use. At present, the domestic automobile industry is developing rapidly, and the market urgently needs self-developed moving belt floor technology. From the product safety and model development, it is of great significance to carry out key technology research on the moving belt floor and complete the localization construction.
[0003] The traditional single-belt system needs to make major modifications to the vehicle during force measurement tests to cope with the force closure between the wheels and the conveyor belt; or needs to apply complex vertical force measurement technology through the moving belt. The former can be realized by removing the wheels from the chassis and running on independent supports, which eliminates the lift of the wheels in the balance measurement, but the vehicle itself must be installed on the upper or rear supports, which will produce significant interference errors. The latter is to measure the vertical force of the tire contact point through the moving belt, but the absolute accuracy of the measurement cannot be verified in detail. SUMMARY
[0004] The purpose of the present application is to overcome the above-mentioned problems, and to provide a restraint support system for a five-belt moving floor system.
[0005] The technical scheme adopted by the present application to achieve the above-mentioned purpose is: The restraint support system for the five-belt moving floor system comprises four restraint support units arranged symmetrically in pairs, the restraint support units are slidingly installed on an XY moving platform, the restraint support unit comprises a lifting device, the lifting device is connected with a driving system, the lifting device is driven to lift through the driving system, the lifting device is provided with a circular grating, the upper end of the lifting device is provided with a skirt stand, the lifting rod of the lifting device is connected with a draw pin device integrated in the skirt stand, the lower end of the lifting device is installed on a single-direction sensor, and the single-direction sensor is installed on the XY moving platform.
[0006] The XY moving platform comprises an X-axis moving assembly and a Y-axis moving assembly, a group of Y-axis moving assemblies is installed below the single-direction sensor of each restraint support unit, the Y-axis moving assembly drives the restraint support unit to move in the Y direction, two groups of Y-axis moving assemblies on the same side are installed on the same X-axis moving assembly, two groups of X-axis moving assemblies are arranged in parallel, and the X-axis moving assembly drives the restraint support unit to move in the X direction.
[0007] The lifting device is a dual-input screw jack.
[0008] The invention is characterized by its ability to achieve overall lifting, two-directional movement and deflection of different vehicles, and to monitor their actual position in real time. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the constraint support unit structure of the present invention.
[0010] The components include: 1. Constraint support unit; 11. Lifting device; 12. Drive system; 13. Circular grating; 14. Skirt column; 15. Pulley device; 16. Unidirectional sensor; 2. X-axis moving assembly; 3. Y-axis moving assembly. Detailed Implementation
[0011] like Figure 1 , 2 As shown, this invention is a constraint support system for a five-belt movable floor system, capable of overall lifting, two-directional movement, and deflection of different vehicles, and real-time monitoring of their actual positions. It includes four sets of constraint support units 1 arranged symmetrically in pairs. Each constraint support unit 1 is slidably mounted on an XY moving platform on the upper plane of a balance. Each constraint support unit 1 includes a lifting device 11, which employs a double-input screw lift. One end of the lifting device 11 is connected to a drive system 12, which drives the lifting and lowering. The other end is equipped with a circular grating 13 for position measurement, thereby achieving accurate simulation of the driving height of different vehicles. A skirt column 14 is installed at the upper end of the lifting device 11, and a rivet device 15 is integrated within the skirt column 14, guiding the lifting rod of the lifting device 11. The lifting rod of the lifting device 11 and the rivet... The device 15 is connected, and the lower end of the lifting device 11 is mounted on a unidirectional sensor 16. The unidirectional sensor 16 is mounted on an XY moving platform. The XY moving platform includes an X-axis moving component 2 and a Y-axis moving component 3. Each set of constraint support units 1 has a set of Y-axis moving components 3 installed below the unidirectional sensor 16. The Y-axis moving components 3 drive the constraint support units 1 to move in the Y direction. Two sets of Y-axis moving components 3 on the same side are mounted on the same X-axis moving component 2. The two sets of X-axis moving components 2 are arranged in parallel. The X-axis moving components 2 drive the constraint support units 1 to move in the X direction. The XY moving platform can be composed of a high-load servo motor, a precision slide rail, a cross slider, and a linear grating. The cross slider can move within a certain range under the drive of the servo motor. The position of the cross slider is fed back in real time through the linear grating, thereby adapting to the constraint support requirements of different vehicle sizes.
[0012] In use, the four groups of constraint support units 1 adjust the position of the XY moving platform by reading the characteristic size parameters of the car, and the car skirt clamps are tightened by the drawpin device 15 on the skirt stand 14, so as to realize the fixation and support of the car. In the test process, the wind resistance of the car is transmitted to the balance through the constraint support unit 1 to measure the force, the lift of the car is measured in real time through the one-way sensor 16, and is fed back to the servo system. The servo system controls the height of the constraint support unit 1 through PID to realize the control of the lift in the test process of the car.
[0013] The application is suitable for different wheelbase and track vehicles, can avoid the movement of the vehicle under the wind force to cause the inaccuracy of the aerodynamic force or the test accident, and provides the basis for realizing the aerodynamic simulation of different driving heights and pitch angles of the vehicle.
[0014] The above is only the preferred specific implementation of the application, but the protection scope of the application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.
Claims
1. A restraint support system for a five-belt movable floor system, characterized in that: It includes four sets of constraint support units arranged symmetrically in pairs. The constraint support units are slidably mounted on the XY moving platform. Each constraint support unit includes a lifting device, which is connected to a drive system and is driven to lift and lower. The lifting device is equipped with a circular grating. A skirt column is mounted on the upper end of the lifting device. The lifting rod of the lifting device is connected to a tie rod device integrated in the skirt column. The lower end of the lifting device is mounted on a unidirectional sensor, which is mounted on the XY moving platform.
2. The restraint support system for a five-belt movable floor system as described in claim 1, characterized in that: The XY moving platform includes an X-axis moving component and a Y-axis moving component. Each set of constraint support units has a Y-axis moving component installed on its unidirectional sensor. The Y-axis moving component drives the constraint support unit to move in the Y direction. Two sets of Y-axis moving components on the same side are installed on the same X-axis moving component. The two sets of X-axis moving components are arranged in parallel. The X-axis moving component drives the constraint support unit to move in the X direction.
3. The restraint support system for a five-belt movable floor system as described in claim 1, characterized in that: The lifting device is a dual-input screw jack.