Adjustable loading test platform for various rudders

Abstract

The utility model provides a kind of adjustable loading test platform for multiple rudders, it is related to rudder performance test field, including support component, the left side of the support component is provided with control unit, the below of the support component is provided with friction force simulation component;The support component includes bottom plate, the side support fixedly connected in the top of the bottom plate both sides, top plate, and pressure loading mechanism are fixedly connected in the top of the top plate, the output of the pressure loading mechanism is through side support and is fixedly connected with rudder mounting plate;The utility model is realized torque stepless regulation by magnetic-powder brake, corresponding different road resistance, restores real driving scene, so that test result is more reference value, can comprehensively evaluate rudder comprehensive performance, while compatibility and integration degree are high, adapt 50-500mm diameter rudder, quick clamping need not frequent tooling, pressure loading, friction force simulation, data acquisition and other function integrated design, convenient operation.

Description

Technical Field

[0001] This utility model belongs to the field of steering wheel performance testing technology, specifically an adjustable loading test platform for various steering wheels. Background Technology

[0002] Steering wheel testing equipment is a collective term for a series of devices and systems specifically used for performance testing, functional verification, and quality assessment of steering wheels. As a key component in many mechanical devices that realize steering and driving functions, such as in electric forklifts, AGVs (Automated Guided Vehicles), and some special robotic equipment, the performance of steering wheels directly affects the operational stability, control precision, and safety of the entire equipment. Therefore, steering wheel testing equipment plays a crucial role. It can help manufacturers discover product defects in a timely manner during the steering wheel production process, ensuring the quality of products leaving the factory, and can also provide accurate data support for R&D personnel, helping to optimize and upgrade new products.

[0003] Currently, existing steering wheel testing equipment has significant shortcomings. On the one hand, the range of loading pressure adjustment is limited and the accuracy is insufficient. Most equipment can only achieve fixed pressure or small-range pressure adjustment, which cannot cover the wide range of pressure requirements from 1 to 25T, making it difficult to meet the testing scenarios of steering wheels of different tonnages. On the other hand, most existing equipment lacks accurate friction simulation functions, or can only provide fixed resistance through simple mechanical structures, and cannot flexibly adjust the magnitude of friction according to testing requirements. It is difficult to reproduce the real force state of the steering wheel when it travels on different road surfaces (such as cement roads, asphalt roads, and gravel roads). At the same time, some equipment has problems such as poor compatibility and incomplete data collection, resulting in low testing efficiency and limited reference value of the results.

[0004] In summary, this utility model provides an adjustable loading test platform for various steering wheels to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An adjustable loading test platform for various steering wheels includes a support assembly. A control unit is located on the left side of the support assembly, and a friction simulation assembly is located below the support assembly. The support assembly includes a base plate, side brackets fixedly connected to the top two sides of the base plate, a top plate bolted to the side brackets, and a pressure loading mechanism fixedly connected to the top of the top plate. The output end of the pressure loading mechanism passes through the side brackets and is fixedly connected to a steering wheel mounting plate. The control unit includes a control cabinet, an electrical control assembly, a switching power supply and a hydraulic station located inside the control cabinet, a three-color warning light installed on the top of the control cabinet, and a display touch screen located on the front of the control cabinet. The friction simulation component includes a driven wheel, a resistive wheel, a magnetic powder brake, a torque sensor, and a base. The output shaft of the magnetic powder brake is drivenly connected to the input shaft of the torque sensor, and the output shaft of the torque sensor is drivenly connected to the resistive wheel.

[0006] Furthermore, in this utility model, guide mechanisms are slidably connected to both sides of the top of the top plate, and the bottom of the guide mechanisms is fixedly connected to the steering wheel mounting plate.

[0007] Furthermore, in this invention, the steering wheel mounting plate is provided with mounting holes to accommodate various loads and types of steering wheels.

[0008] Furthermore, in this invention, the support component and the control unit are installed side by side, and the front of the control cabinet is reserved with USB interface and Ethernet interface.

[0009] Furthermore, in this utility model, the resisting wheel and the driven wheel are parallel to each other and precisely meshed, the magnetic powder brake is fixedly connected to the base by bolts, and both the driven wheel and the resisting wheel are fixed to the base by bearing seats.

[0010] Beneficial effects: This utility model has the following beneficial effects: This invention features wide-range adjustable and high-precision pressure, enabling continuous loading from 1 to 25T, covering testing needs from light to heavy-duty steering wheels. Pressure control accuracy reaches ±1% FS with minimal fluctuations. It eliminates the need for multiple devices, significantly reducing testing costs and enhancing equipment versatility. Furthermore, its friction simulation is precise and flexible, achieving stepless torque adjustment via a magnetic powder brake to accommodate different road resistances and recreate realistic driving scenarios, making test results more valuable. It comprehensively evaluates the overall performance of steering wheels and boasts high compatibility and integration, adapting to steering wheels with diameters from 50 to 500mm. Quick clamping eliminates the need for frequent tooling changes. The integrated design of pressure loading, friction simulation, and data acquisition functions ensures convenient operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the pressure loading mechanism, the guide mechanism, and the top plate of this utility model; Figure 3 This is a schematic diagram of the control cabinet structure of this utility model; Figure 4 This is a schematic diagram of the friction simulation component of this utility model.

[0012] In the picture: 1. Support assembly; 2. Control unit; 3. Friction simulation assembly; 4. Base plate; 5. Side bracket; 6. Top plate; 7. Pressure loading mechanism; 8. Guide mechanism; 9. Steering wheel mounting plate; 10. Control cabinet; 11. Electrical control assembly; 12. Switching power supply; 13. Hydraulic station; 14. Three-color warning light; 15. Display and control touch screen; 16. Driven wheel; 17. Resistance wheel; 18. Magnetic powder brake; 19. Torque sensor; 20. Base. Detailed Implementation

[0013] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0014] Example 1 like Figure 1-4 As shown, this is the first embodiment of the present invention. This embodiment provides an adjustable loading test platform for various steering wheels, including a support assembly 1, a control unit 2 disposed on the left side of the support assembly 1, and a friction simulation assembly 3 disposed below the support assembly 1. The support assembly 1 includes a base plate 4, side brackets 5 fixedly connected to the top two sides of the base plate 4, a top plate 6 bolted to the side brackets 5, and a pressure loading mechanism 7 fixedly connected to the top of the top plate 6. The output end of the pressure loading mechanism 7 passes through the side brackets 5 and is fixedly connected to a steering wheel mounting plate 9. The control unit 2 includes a control cabinet 10, an electrical control assembly 11 disposed in the cavity of the control cabinet 10, a switching power supply 12 and a hydraulic station 13, a three-color warning light 14 mounted on the top of the control cabinet 10, and a display touch screen 15 disposed on the front of the control cabinet 10. The friction simulation component 3 includes a driven wheel 16, a resistive wheel 17, a magnetic powder brake 18, a torque sensor 19, and a base 20. The output shaft of the magnetic powder brake 18 is connected to the input shaft of the torque sensor 19, and the output shaft of the torque sensor 19 is connected to the resistive wheel 17.

[0015] like Figure 1-4As shown, the support assembly 1 consists of a base plate 4, side supports 5, and a top plate 6. The entire assembly is welded from Q235A steel sheet, and undergoes aging treatment after welding to eliminate internal stress, ensuring structural stability under a wide pressure loading range of 1-25T. The surface is treated with electrostatic powder coating, providing rust and scratch resistance. This assembly is used to fix the pressure loading mechanism 7 and the friction simulation assembly 3, providing a platform for steering wheel testing. The core of the pressure loading mechanism 7 is a customized hydraulic cylinder, capable of continuously adjusting the loading pressure from 1-25T with a pressure control accuracy of ±1%. The FS (Front-Side Components) system meets the testing requirements of steering wheels with different load levels. The control unit 2 is a vertical structure, installed side by side with the support component 1. The control cabinet 10 adopts a layered layout, with the electrical control component 11, switching power supply 12, and hydraulic station 13 from top to bottom. Each area is separated by a metal partition to avoid electromagnetic interference. The tri-color warning light 14 installed on the top of the control cabinet 10 displays the current operating status of the equipment in real time. The display and control touch screen 15 serves as a human-machine interface, allowing direct operation of equipment start / stop, parameter setting, and data viewing. The friction simulation component 3 is installed on the base plate 4. By adjusting the excitation current of the magnetic powder brake 18, the torque output is controlled to provide different driving resistances for the steering wheel, accurately simulating various road conditions. Through a customized hydraulic system and PLC closed-loop control, it achieves continuous adjustment from 1 to 25T, with a pressure control accuracy of ±1%. The FS solves the problems of narrow pressure range and low accuracy of existing equipment. The magnetic powder brake friction simulation structure achieves stepless torque adjustment through dual-wheel transmission and magnetic powder brake 18 torque adjustment, accurately simulating various road resistances and restoring real driving scenarios.

[0016] Example 2 Reference Figure 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0017] In this embodiment, guide mechanisms 8 are slidably connected to both sides of the top of the top plate 6, and the bottom of the guide mechanism 8 is fixedly connected to the steering wheel mounting plate 9.

[0018] The steering wheel mounting plate 9 is provided with mounting holes to accommodate various loads and steering wheels.

[0019] like Figure 2 As shown, the guide mechanism 8 provides guidance in the direction of pressure, avoiding deviation and shaking, and improving the accuracy and reliability of the test. The steering wheel mounting plate 9 has mounting holes for various models and positions, which can be adapted to various loads and types of steering wheels.

[0020] Example 3 Reference Figure 1 and Figure 4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0021] In this embodiment, the support component 1 and the control unit 2 are installed side by side, and the front of the control cabinet 10 is reserved with USB interface and Ethernet interface.

[0022] The drive wheel 17 and the driven wheel 16 are parallel to each other and precisely meshed. The magnetic powder brake 18 is fixedly connected to the base 20 by bolts. Both the driven wheel 16 and the drive wheel 17 are fixed to the base 20 by bearing seats.

[0023] like Figure 1 and Figure 4 As shown, the control cabinet 10 is equipped with a metal hinged door, which facilitates debugging and prevents dust from entering. It has reserved USB and Ethernet interfaces. The USB interface is used to export test data, and the Ethernet interface supports the connection between the device and the computer to realize remote control and data synchronization. The driven wheel 16 and the resistive wheel 17 are both made of 45 steel and the diameter can be replaced. The driven wheel 16 is in contact with the surface of the rudder wheel under test. When the rudder wheel rotates, the driven wheel 16 and the resistive wheel 17 rotate synchronously through friction, thus transmitting power.

[0024] Example 4 Reference Figure 1-4 This is the fourth embodiment of the present invention, which is based on the previous three embodiments.

[0025] In this embodiment, the electronic control component 11 includes a PLC control system. The pressure loading mechanism 7 can be linked with the PLC control system to realize two modes: static loading and dynamic loading. Dynamic loading supports a custom "pressure-time" curve. A magnetic powder brake 18 is used and fixedly connected to the drag wheel 17. The excitation current is adjusted by a dedicated drive power supply to achieve stepless torque adjustment. It simulates flat cement roads, simulated asphalt roads, and simulated gravel roads with different driving resistance. The torque sensor 19 can be a spoke-type torque sensor to collect the actual torque value in real time and transmit it to the PLC to form a closed-loop control to ensure that the resistance is consistent with the set value.

[0026] In addition to hydraulic loading, pressure loading can also use an electro-hydraulic servo loading system, which has a higher loading accuracy of ±0.5%FS, but the cost is higher and it is suitable for scenarios with extremely high accuracy requirements. Alternatively, a weight + lever mechanism can be used, which is low in cost but has poor dynamic loading flexibility and is only suitable for static testing.

[0027] In addition to the magnetic powder brake 18, friction simulation can be achieved by using an electromagnetic brake, which has a fast response speed but a narrow torque adjustment range, or a mechanical friction plate brake, which has a simple structure but wears out quickly and requires frequent replacement of parts.

[0028] When using the test, the following steps are required: According to the model, size and installation requirements of the steering wheel to be tested, adjust the adjustable wheel set fixing device, drive the steering wheel mounting plate 9 through the pressure loading mechanism 7, adjust the fixing height to match the installation height of the steering wheel, replace the appropriate adapter shims according to the mounting hole conditions, and then install the steering wheel on the fixing device and clamp it in place.

[0029] Parameter settings: Open the control system and select the test mode of static loading or dynamic loading. If static loading is selected, set the target pressure value, loading duration, and friction simulation value, etc. If dynamic loading is selected, you can select a preset standard test cycle or customize the "pressure-time" curve, and set the data acquisition frequency.

[0030] Start Test: Click the "Start Test" button on the control system. The adjustable loading system will start applying load to the steering wheel according to the preset parameters. During the test, the data acquisition system will collect data such as pressure, displacement, and time in real time and transmit them to the control system. The software will display the change curves and values ​​of each parameter in real time.

[0031] Test completion: When the test reaches the preset duration or completes the custom test cycle, the adjustable pressure loading mechanism 7 automatically stops loading, and the control system automatically saves the test data. Operators can view the curves or export the data for subsequent analysis and processing by staff.

[0032] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0033] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An adjustable loading test platform for various steering wheels, characterized in that: The system includes a support assembly (1), a control unit (2) on the left side of the support assembly (1), and a friction simulation assembly (3) below the support assembly (1). The support assembly (1) includes a base plate (4), side brackets (5) fixedly connected to the top two sides of the base plate (4), a top plate (6) bolted to the side brackets (5), and a pressure loading mechanism (7) fixedly connected to the top of the top plate (6). The output end of the pressure loading mechanism (7) passes through the side brackets (5) and is fixedly connected to a steering wheel mounting plate (9). The control unit (2) includes a control cabinet (10), an electrical control assembly (11), a switching power supply (12), and a hydraulic station (13) located inside the control cabinet (10), a three-color warning light (14) installed on the top of the control cabinet (10), and a display touch screen (15) located on the front of the control cabinet (10). The friction simulation component (3) includes a driven wheel (16), a resistive wheel (17), a magnetic powder brake (18), a torque sensor (19), and a base (20). The output shaft of the magnetic powder brake (18) is connected to the input shaft of the torque sensor (19), and the output shaft of the torque sensor (19) is connected to the resistive wheel (17).

2. The adjustable loading test platform for various steering wheels as described in claim 1, characterized in that: The top plate (6) has guide mechanisms (8) slidably connected to both sides of the top, and the bottom of the guide mechanism (8) is fixedly connected to the steering wheel mounting plate (9).

3. The adjustable loading test platform for various steering wheels as described in claim 1, characterized in that: The steering wheel mounting plate (9) is provided with mounting holes to accommodate various loads and types of steering wheels.

4. The adjustable loading test platform for various steering wheels as described in claim 1, characterized in that: The support component (1) and the control unit (2) are installed side by side, and the front of the control cabinet (10) is reserved with USB interface and Ethernet interface.

5. The adjustable loading test platform for various steering wheels as described in claim 1, characterized in that: The braking wheel (17) is parallel to and precisely meshed with the driven wheel (16) on the axis. The magnetic powder brake (18) is fixedly connected to the base (20) by bolts. Both the driven wheel (16) and the braking wheel (17) are fixed to the base (20) by bearing seats.

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