Full-drive-by-wire wheel unit five-degree-of-freedom performance test platform

Abstract

The utility model discloses a full-drive-by-wire wheel unit five-degree-of-freedom performance test platform, which comprises a main body frame, and a counterweight mechanism, a load simulation nozzle, a lateral deviation simulation mechanism, a vertical vibration simulation mechanism and a lateral loading mechanism are sequentially arranged in the main body frame from top to bottom. The lateral loading mechanism comprises a transverse sliding rail which is fixedly mounted with the main body frame; a sliding block is arranged on the surface of the transverse sliding rail; and a bottom plate is arranged at the upper part of the sliding block. According to the utility model, the counterweight mechanism, the load simulation nozzle, the lateral deviation simulation mechanism, the vertical vibration simulation mechanism and the lateral loading mechanism are arranged in the main body frame from top to bottom in sequence, and all the mechanisms are cooperatively controlled, so that various working conditions in real-time driving of a vehicle can be simulated, and construction requirements of continuous testing are met; and data acquired under various working conditions are recorded and analyzed in real time, so that the research and development speed of the whole drive-by-wire wheel unit is improved to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of a full-wire wheel control unit test platform, and more specifically to a five-degree-of-freedom performance test platform for a full-wire wheel control unit. Background Art

[0002] The full-wire wheel control unit performance test platform is a comprehensive test system designed specifically for wheel control units (WLUs), core drive components in wheeled vehicles (such as electric vehicles and autonomous vehicles). The platform integrates high-precision measuring instruments, automated control technology, and data analysis software to comprehensively and accurately evaluate and verify all aspects of WLU performance.

[0003] Existing side-view sprinklers are unable to simulate dynamic motion and loading in multiple degrees of freedom, nor can they measure the dynamic posture and force conditions of the full-wire control wheel unit. Therefore, a new technical solution is needed to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a five-degree-of-freedom performance test platform for a full-line wheel control unit, which solves the problem that the existing side-view sprinkler head cannot simulate dynamic motion and loading of multiple degrees of freedom, nor can it measure the dynamic posture and force conditions of the full-line wheel control unit.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a five-degree-of-freedom performance test platform for a full-wire wheel control unit, comprising: a main frame, wherein the interior of the main frame is provided with a counterweight mechanism, a load simulation nozzle, a lateral simulation mechanism, a vertical vibration simulation mechanism and a lateral loading mechanism from top to bottom, wherein the lateral loading mechanism comprises a transverse slide rail fixedly mounted on the main frame, a slider is provided on the surface of the transverse slide rail and a bottom plate is provided on the upper part of the slider, a transmission screw is provided at the bottom of the main frame and a drive motor is provided at one end of the transmission screw, a fixed block connected to the transmission screw is provided at the lower part of the bottom plate, the vertical vibration simulation mechanism comprises a mounting plate and the mounting plate is provided on the upper part of the bottom plate, A connecting column is provided on the upper part of the plate and a connecting plate is provided on the upper part of the connecting column, an electric actuator is provided on the lower part of the connecting plate and four groups of air bags are provided on the upper part, the lateral deviation simulation mechanism is installed on the upper part of the connecting plate and the lateral deviation simulation mechanism includes a group of servo motors, a rotary assembly protective cover and a fixed plate, the servo motor is fixed on the fixed plate, a load simulation platform is installed on the upper part of the fixed plate, the load simulation nozzle includes a mounting frame and two groups of drums are provided on the inner side of the mounting frame, a flat belt is provided on the surface of the drum, the drum is a built-in motor, the counterweight mechanism includes a vertical slide rail fixedly mounted on the main frame and a sliding block is provided on the surface of the vertical slide rail, a connecting seat is provided on the side of the sliding block and a weight is provided on the upper part of the connecting seat.

[0006] As a preferred embodiment of the present invention, a dust collection cabinet is provided on the side of the main frame, and a collection pipe of the dust collection cabinet extends into the interior of the main frame.

[0007] As a preferred embodiment of the present invention, an electrical control cabinet is provided on the side of the main frame and is connected to the control circuit inside the main frame.

[0008] As a preferred embodiment of the present invention, a fixing column is provided on the upper portion of the connecting seat and the weight is sleeved on the surface of the fixing column, and a locking nut is provided on the top of the fixing column.

[0009] As a preferred embodiment of the present invention, a three-force sensor is provided between the base plate and the mounting plate.

[0010] As a preferred embodiment of the present invention, a guide rod is provided at the lower portion of the fixing plate, and the guide rod passes through the connecting plate and is slidably connected thereto.

[0011] As a preferred embodiment of the present invention, a tensioning cylinder is provided on the side of the mounting frame and a movable block is provided at the output end of the tensioning cylinder, and the movable block is connected to one group of rotating drums.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model comprises a main frame, wherein a counterweight mechanism, a load simulation nozzle, a lateral deflection simulation mechanism, a vertical vibration simulation mechanism and a lateral loading mechanism are arranged in sequence from top to bottom inside the main frame, the lateral loading mechanism comprises a transverse slide rail fixedly mounted on the main frame, a slider is arranged on the surface of the transverse slide rail and a bottom plate is arranged on the upper part of the slider, a transmission screw is arranged at the bottom of the main frame and a driving motor is arranged at one end of the transmission screw, a fixed block connected to the transmission screw is arranged at the lower part of the bottom plate, and the transmission screw is driven to rotate by the driving drive, so that the fixed block threadedly connected thereto drives the transmission screw to rotate. The base plate moves laterally to achieve lateral loading. The vertical vibration simulation mechanism includes a mounting plate, and the mounting plate is arranged on the upper part of the base plate. A connecting column is arranged on the upper part of the mounting plate, and a connecting plate is arranged on the upper part of the connecting column. An electric actuator is arranged at the lower part of the connecting plate and four groups of air bags are arranged on the upper part. The electric actuator is used as the actuator of this part to ensure the vertical movement working condition requirements of the equipment. The full-line control wheel unit is excited according to the input usage frequency. The air bag ensures that the servo electric cylinder only bears the force of the full-line control wheel unit, and the rest of the gravity is borne by the air bag. The lateral deflection simulation mechanism is installed on the upper part of the connecting plate. The lateral deviation simulation mechanism includes a set of servo motors, a rotary assembly protective cover and a fixed plate. The servo motor is fixed on the fixed plate, and the rotary assembly is driven by the motor to realize the lateral deviation simulation of the equipment. A fixed plate is provided on the upper part of the airbag, and a load simulation platform is installed on the upper part of the fixed plate. The load simulation nozzle includes a mounting frame, and two sets of drums are provided on the inner side of the mounting frame. A flat belt is provided on the surface of the drum. The drum is a built-in motor, and the outer surface of the drum is a synchronous wheel. The flat belt is a special synchronous belt. When the drum rotates, the flat belt ensures that the two drums rotate synchronously. The counterweight module includes a vertical fixed installation on the main frame. The surfaces of the lateral and vertical slide rails are provided with sliding blocks, the sides of the sliding blocks are provided with connecting seats and the upper part of the connecting seats is provided with weights. According to different load conditions, the variable load function of the full-line wheel control unit can be realized by changing the weights. The vertical slide rails and the sliding blocks ensure that the movement direction of the full-line wheel control unit and the weights is vertical. The five-degree-of-freedom performance test platform of the full-line wheel control unit is collaboratively controlled by various mechanisms, which can simulate various working conditions in real-time driving of the vehicle, meet the construction needs of continuous testing, and record and analyze the data collected under various working conditions in real time, which greatly improves the research and development speed of the full-line wheel control unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the vertical vibration simulation mechanism, lateral deflection simulation mechanism, and lateral loading mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the counterweight mechanism of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the load simulation platform of the utility model;

[0018] Figure 5 This is a structural diagram of the side deviation simulation mechanism of the utility model from another angle.

[0019] In the figure: 1. Main frame; 2. Dust collection cabinet; 3. Electrical control cabinet; 4. Counterweight mechanism; 5. Load simulation platform; 6. Lateral deviation simulation mechanism; 7. Vertical vibration simulation mechanism; 8. Lateral loading mechanism; 9. Drive motor; 10. Horizontal slide rail; 11. Bottom plate; 12. Slider; 13. Transmission screw; 14. Three-force sensor; 15. Mounting plate; 16. Connecting column; 17. Electric actuator; 18. Connecting plate; 19. Guide rod; 20. Airbag; 21. Vertical slide rail; 22. Sliding block; 23. Connecting seat; 24. Weight; 25. Fixed column; 26. Mounting frame; 27. Drum; 28. Flat belt; 29. ​​Tensioning cylinder; 30. Movable block; 31. Fixed plate; 32. Servo motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-5The utility model provides a technical solution: a five-degree-of-freedom performance test platform for a full-wire wheel control unit, comprising: a main frame 1, wherein the interior of the main frame 1 is provided with a counterweight mechanism 4, a load simulation nozzle, a lateral simulation mechanism 6, a vertical vibration simulation mechanism 7 and a lateral loading mechanism 8 from top to bottom, wherein the lateral loading mechanism 8 comprises a transverse slide rail 10 fixedly mounted on the main frame 1, a slider 12 is provided on the surface of the transverse slide rail 10 and a bottom plate 11 is provided on the upper part of the slider 12, a transmission screw 13 is provided at the bottom of the main frame 1 and a drive motor 9 is provided at one end of the transmission screw, a fixed block connected to the transmission screw 13 is provided at the lower part of the bottom plate 11, and the vertical vibration simulation mechanism 7 is provided. It includes a mounting plate 15 and the mounting plate 15 is arranged on the upper part of the base plate 11, a connecting column 16 is provided on the upper part of the mounting plate 15 and a connecting plate 18 is provided on the upper part of the connecting column 16, an electric actuator 17 is provided on the lower part of the connecting plate 18 and four groups of airbags 20 are provided on the upper part, the side deviation simulation mechanism 6 is installed on the upper part of the connecting plate 18 and the side deviation simulation mechanism 6 includes a group of servo motors 32, a rotary assembly protective cover 33 and a fixed plate 31, the servo motor 32 is fixed on the fixed plate 31, a load simulation platform 5 is installed on the upper part of the fixed plate 31, the load simulation nozzle includes a mounting frame 26 and two groups of drums 27 are provided on the inner side of the mounting frame 26, and a flat belt 28 is provided on the surface of the drum 27. The rotating drum 27 is a built-in motor. The counterweight mechanism 4 includes a vertical slide rail 21 fixedly mounted on the main frame 1 and a sliding block 22 is provided on the surface of the vertical slide rail 21. A connecting seat 23 is provided on the side of the sliding block 22 and a weight 24 is provided on the upper part of the connecting seat 23. The main frame 1 includes a counterweight mechanism 4, a load simulation nozzle, a lateral simulation mechanism 6, a vertical vibration simulation mechanism 7 and a lateral loading mechanism 8. The lateral loading mechanism 8 includes a transverse slide rail 10 fixedly mounted on the main frame 1, a slider 12 is provided on the surface of the transverse slide rail 10 and a bottom plate 11 is provided on the upper part of the slider 12, and a transmission screw 13 is provided at the bottom of the main frame 1 and a transmission screw A driving motor 9 is provided at one end, and a fixed block connected to a transmission screw 13 is provided at the lower part of the base plate 11. By driving and driving the transmission screw 13 to rotate, the fixed block threadedly connected thereto drives the base plate 11 to move laterally to achieve lateral loading. The vertical vibration simulation mechanism 7 includes a mounting plate 15, and the mounting plate 15 is provided on the upper part of the base plate 11. A connecting column 16 is provided on the upper part of the mounting plate 15, and a connecting plate 18 is provided on the upper part of the connecting column 16. An electric actuator 17 is provided at the lower part of the connecting plate 18, and four groups of air bags 20 are provided on the upper part. The electric actuator 17 serves as the actuator of this part to ensure the vertical motion working condition requirements of the equipment and excite the full-line control wheel unit according to the input usage frequency.The airbag 20 ensures that the servo electric cylinder only bears the force of the full-line control wheel unit, and the rest of the gravity is borne by the airbag 20. The lateral deviation simulation mechanism 6 is installed on the upper part of the connecting plate 18 and the lateral deviation simulation mechanism 6 includes a group of servo motors 32, a rotary assembly protective cover 33 and a fixed plate 31. The servo motor 32 is fixed on the fixed plate 31, and the rotary assembly is driven by the motor to realize the lateral deviation simulation of the equipment. A fixed plate 31 is provided on the upper part of the airbag 20 and a load simulation platform 5 is installed on the upper part of the fixed plate 31. The load simulation nozzle includes a mounting frame 26 and two groups of drums 27 are provided on the inner side of the mounting frame 26. A flat belt 28 is provided on the surface of the drum 27. The drum 27 is a built-in motor, and the outer surface of the drum 27 is a synchronous wheel. The flat belt 28 is a special synchronous belt. When the drum 27 rotates The flat belt 28 ensures the synchronous rotation of the two drums 27. The counterweight mechanism 4 includes a vertical slide rail 21 fixed to the main frame 1. The surface of the vertical slide rail 21 is provided with a sliding block 22. The side of the sliding block 22 is provided with a connecting seat 23, and the upper portion of the connecting seat 23 is provided with a weight 24. According to different load conditions, the weight 24 can be changed to achieve variable load function for the full-line wheel control unit. The vertical slide rail 21 and sliding block 22 ensure that the full-line wheel control unit and the weight 24 move in the vertical direction. The five-degree-of-freedom performance test platform of the full-line wheel control unit is controlled by various mechanisms in a coordinated manner. It can simulate various working conditions of real-time vehicle driving and meet the construction needs of continuous testing. It also records and analyzes data collected under various working conditions in real time, greatly improving the development speed of the full-line wheel control unit.

[0022] Further improvements, such as Figure 1 As shown: a dust collection cabinet 2 is provided on the side of the main frame 1 and the collection pipe of the dust collection cabinet 2 extends into the interior of the main frame 1. This setting can collect the dust generated by the test to avoid environmental pollution.

[0023] Further improvements, such as Figure 1 As shown: an electrical control cabinet 3 is provided on the side of the main frame 1 and the electrical control cabinet 3 is connected to the control circuit inside the main frame 1. This arrangement facilitates test control from the outside.

[0024] Further improvements, such as Figure 3 As shown: a fixing column 25 is provided on the upper part of the connecting seat 23 and the weight 24 is sleeved on the surface of the fixing column 25. A locking nut is provided on the top of the fixing column 25. This setting can effectively fix the weight 24 and facilitate the disassembly and replacement of the weight 24.

[0025] Further improvements, such as Figure 2 As shown: a three-force sensor 14 is provided between the base plate 11 and the mounting plate 15 , and the three-force sensor 14 can collect the magnitude of the force required in each direction during the experiment in real time.

[0026] Further improvements, such as Figure 2 As shown: a guide rod 19 is provided at the lower part of the fixing plate 31 and the guide rod 19 passes through the connecting plate 18 and is slidably connected thereto. The setting of the guide rod 19 ensures the stability of the upward and downward movement of the fixing plate 31 and avoids deviation.

[0027] Further improvements, such as Figure 4 As shown: a tensioning cylinder 29 is provided on the side of the mounting frame 26 and a movable block 30 is provided at the output end of the tensioning cylinder 29. The movable block 30 is connected to one group of rotating drums 27. The movable block 30 can be driven to move by the extension and contraction of the tensioning cylinder 29, thereby ensuring the tension of the flat belt 28.

[0028] The utility model includes a main frame 1, and a counterweight mechanism 4, a load simulation nozzle, a lateral simulation mechanism 6, a vertical vibration simulation mechanism 7 and a lateral loading mechanism 8 are arranged inside the main frame 1 from top to bottom. The lateral loading mechanism 8 includes a transverse slide rail 10 fixedly installed with the main frame 1, a slider 12 is provided on the surface of the transverse slide rail 10, and a bottom plate 11 is provided on the upper part of the slider 12, a transmission screw 13 is provided at the bottom of the main frame 1, and a drive motor 9 is provided at one end of the transmission screw, and a fixed block connected to the transmission screw 13 is provided at the lower part of the bottom plate 11. The transmission screw 13 is driven to rotate by driving, so that the fixed block threadedly connected to the bottom plate 1 is driven. 1 moves sideways to achieve lateral loading. The vertical vibration simulation mechanism 7 includes a mounting plate 15, and the mounting plate 15 is arranged on the upper part of the base plate 11. A connecting column 16 is arranged on the upper part of the mounting plate 15, and a connecting plate 18 is arranged on the upper part of the connecting column 16. An electric actuator 17 is arranged on the lower part of the connecting plate 18, and four groups of air bags 20 are arranged on the upper part of the connecting plate 18. The electric actuator 17 serves as the actuator of this part to ensure the vertical movement working condition requirements of the equipment and excite the full-line control wheel unit according to the input usage frequency. The air bag 20 ensures that the servo electric cylinder only bears the force of the full-line control wheel unit, and the rest of the gravity is borne by the air bag 20. The lateral deflection simulation mechanism 6 is installed on the upper part of the connecting plate 18 and The lateral deflection simulation mechanism 6 includes a set of servo motors 32, a rotary assembly protective cover 33 and a fixed plate 31. The servo motor 32 is fixed on the fixed plate 31. The rotary assembly is driven by the motor to realize the lateral deflection simulation of the equipment. A fixed plate 31 is provided on the upper part of the airbag 20 and a load simulation platform 5 is installed on the upper part of the fixed plate 31. The load simulation nozzle includes a mounting frame 26 and two sets of drums 27 are provided on the inner side of the mounting frame 26. A flat belt 28 is provided on the surface of the drum 27. The drum 27 is a built-in motor. The outer surface of the drum 27 is a synchronous wheel. The flat belt 28 is a special synchronous belt. When the drum 27 rotates, the flat belt 28 ensures that the two drums 27 rotate synchronously. The counterweight module includes a mounting frame 26 and a mounting frame 26. The inner side of the mounting frame 26 is provided with two sets of drums 27. The outer surface of the drum 27 is a synchronous wheel. The flat belt 28 is a special synchronous belt. When the drum 27 rotates, the flat belt 28 ensures that the two drums 27 rotate synchronously. The frame 1 is fixedly mounted with a vertical slide rail 21 and a sliding block 22 is provided on the surface of the vertical slide rail 21. A connecting seat 23 is provided on the side of the sliding block 22 and a weight 24 is provided on the upper part of the connecting seat 23. According to different load working conditions, the variable load function of the full-line wheel control unit can be realized by changing the weight 24. The vertical slide rail 21 and the sliding block 22 ensure that the movement direction of the full-line wheel control unit and the weight 24 is vertical. The five-degree-of-freedom performance test platform of the full-line wheel control unit is collaboratively controlled by various mechanisms, which can simulate various working conditions in real-time driving of the vehicle, meet the construction needs of continuous testing, and record and analyze the data collected under various working conditions in real time, which greatly improves the research and development speed of the full-line wheel control unit.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which can be mechanical connection or electrical connection, or internal communication between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0031] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A five-degree-of-freedom performance test platform for a fully wire-controlled wheel unit, characterized by: include: A main frame (1), wherein the interior of the main frame (1) is provided with a counterweight mechanism (4), a load simulation nozzle, a lateral deflection simulation mechanism (6), a vertical vibration simulation mechanism (7) and a lateral loading mechanism (8) from top to bottom, wherein the lateral loading mechanism (8) comprises a transverse slide rail (10) fixedly mounted on the main frame (1), a slider (12) is provided on the surface of the transverse slide rail (10), and a base plate (11) is provided on the upper part of the slider (12), a transmission screw (13) is provided at the bottom of the main frame (1), and a driving motor (9) is provided at one end of the transmission screw, and a fixed block connected to the transmission screw (13) is provided at the lower part of the base plate (11), and the vertical vibration simulation mechanism (7) comprises a mounting plate (15), and the mounting plate (15) is provided on the upper part of the base plate (11), a connecting column (16) is provided on the upper part of the mounting plate (15), and a connecting plate (18) is provided on the upper part of the connecting column (16), and the connecting plate The lower part of the connecting plate (18) is provided with an electric actuator (17) and the upper part is provided with four groups of air bags (20), the side deviation simulation mechanism (6) is installed on the upper part of the connecting plate (18) and the side deviation simulation mechanism (6) includes a group of servo motors (32), a rotary assembly protective cover (33) and a fixed plate (31), the servo motor (32) is fixed on the fixed plate (31), the upper part of the fixed plate (31) is provided with a load simulation platform (5), and the load simulation nozzle includes a mounting plate (31) and a mounting plate (32). A mounting frame (26) is provided and two groups of rotating drums (27) are provided on the inner side of the mounting frame (26), a flat belt (28) is provided on the surface of the rotating drum (27), and the rotating drum (27) is a built-in motor. The counterweight mechanism (4) includes a vertical slide rail (21) fixedly mounted on the main frame (1), and a sliding block (22) is provided on the surface of the vertical slide rail (21), a connecting seat (23) is provided on the side of the sliding block (22), and a weight (24) is provided on the upper part of the connecting seat (23).

2. The five-degree-of-freedom performance testing platform for a full-wire wheel control unit according to claim 1, characterized in that: A dust collection cabinet (2) is provided on the side of the main frame (1), and a collection pipe of the dust collection cabinet (2) extends into the interior of the main frame (1).

3. The five-degree-of-freedom performance testing platform for a full-wire wheel control unit according to claim 1, characterized in that: An electrical control cabinet (3) is provided on the side of the main frame (1), and the electrical control cabinet (3) is connected to a control circuit inside the main frame (1).

4. The five-degree-of-freedom performance testing platform for a full-wire wheel control unit according to claim 1, characterized in that: A fixing column (25) is provided on the upper portion of the connecting seat (23), and a weight (24) is sleeved on the surface of the fixing column (25). A locking nut is provided on the top of the fixing column (25).

5. The five-degree-of-freedom performance testing platform for a full-wire wheel control unit according to claim 1, characterized in that: A three-force sensor (14) is provided between the base plate (11) and the mounting plate (15).

6. The five-degree-of-freedom performance testing platform for a full-wire wheel control unit according to claim 1, characterized in that: A guide rod (19) is provided at the lower portion of the fixing plate (31), and the guide rod (19) passes through the connecting plate (18) and is slidably connected thereto.

7. The five-degree-of-freedom performance testing platform for a full-wire wheel control unit according to claim 1, characterized in that: A tensioning cylinder (29) is provided on the side of the mounting frame (26), and a movable block (30) is provided at the output end of the tensioning cylinder (29). The movable block (30) is connected to one group of rotating drums (27).

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