CN115683671A - Test method of multifunctional test bench for steering wheel system - Google Patents
Test method of multifunctional test bench for steering wheel system Download PDFInfo
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- CN115683671A CN115683671A CN202211309478.3A CN202211309478A CN115683671A CN 115683671 A CN115683671 A CN 115683671A CN 202211309478 A CN202211309478 A CN 202211309478A CN 115683671 A CN115683671 A CN 115683671A
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Abstract
The invention discloses a test method of a multifunctional test bench for a steering wheel system. The loading unit comprises a lifting motor, a worm gear lead screw lifter, a first tension pressure sensor, a suspension system, a T-shaped sliding block and an adapter plate; the friction test unit comprises a gear reduction motor, a first coupler, a ball screw, a second pull pressure sensor, a heavy-load linear guide rail, a protective cover, a heavy-load sliding block, a material block, a first limiter, a deep groove ball bearing and a bearing seat; the comprehensive performance testing unit comprises a magnetic powder brake, a torque sensor, a metal pair grinding wheel, a second coupler, a third coupler and a transmission shaft; the outer frame comprises a bottom supporting frame, an upper side moving frame, a linear guide rail, a sliding block, a screw rod, a hand wheel and a second limiter.
Description
Technical Field
The invention relates to a testing device, in particular to a multifunctional testing platform for a steering wheel system.
Background
With the increase of the modern industrial intelligence degree, the AGV steering wheel system has already gone up to the era stage. However, no special test board capable of touching the performance of the steering wheel system exists in the market at present, a loading test board with similar functions cannot test the actual friction coefficient of the steering wheel, and research tests such as obstacle crossing and ditch crossing cannot be performed, so that the multifunctional test board has certain limitations.
Disclosure of Invention
The invention aims to provide a multifunctional test bench for a steering wheel system, which can simultaneously carry out a rolling friction coefficient test of a steering wheel tire, a sliding friction coefficient test of the steering wheel tire, an obstacle crossing test of the steering wheel system, a ditch crossing test of the steering wheel system and the like on the basis of realizing the conventional loading test function of the steering wheel system.
The technical solution for realizing the purpose of the invention is as follows: a multifunctional test bench for a steering wheel system comprises a loading unit, a friction test unit, a comprehensive performance test unit and an outer frame. The loading unit comprises a lifting motor, a worm gear lead screw lifter, a first pull pressure sensor, a suspension system, a T-shaped sliding block and an adapter plate; the friction test unit comprises a gear reduction motor, a first coupler, a ball screw, a second pull pressure sensor, a heavy-load linear guide rail, a protective cover, a heavy-load sliding block, a material block, a first limiter, a deep groove ball bearing and a bearing seat; the comprehensive performance testing unit comprises a magnetic powder brake, a torque sensor, a metal pair grinding wheel, a second coupler, a third coupler and a transmission shaft; the outer frame comprises a bottom supporting frame, an upper side moving frame, a linear guide rail, a sliding block, a screw rod, a hand wheel and a second limiter.
In the loading unit, a lifting motor is matched with a worm wheel screw rod lifter to apply loading force to simulate wheel pressure, the bottom of the loading unit is connected with a suspension system, so that the loading is more stable, and the bottom of the loading unit can be connected with a steering wheel system to be tested.
In the friction test unit, a gear reduction motor is matched with a ball screw and a linear guide rail to provide horizontal tension, so that a heavy-load sliding block is pushed to move relative to a steering wheel tire.
In the comprehensive performance testing unit, a load torque is provided through the magnetic powder brake, the magnetic powder brake is connected with the metal pair grinding wheel through the transmission shaft, and the steering wheel can provide a load for the metal pair grinding wheel when driving the metal pair grinding wheel to rotate.
The loading unit is integrally installed in the upper side moving frame, and the rotating hand wheel can integrally move on the friction testing unit and the comprehensive performance testing unit through the linear guide rail and the ball screw, so that integration of multiple testing functions is realized.
Compared with the prior art, the invention has the following remarkable advantages: (1) More test functions can be realized, including friction coefficient measurement, obstacle crossing and ditch crossing tests, service life tests and the like; (2) The function compatibility and integration are high, and the loading unit is integrated integrally and can meet the requirements of different test functions through integral movement; (3) The loading stability is good, the tension and pressure sensor feeds back the magnitude of the loading force in real time to control the change of the loading force, and the suspension system is provided, so that the loading is more stable; (4) The steering wheel is more convenient to install, the steering wheel adapter plate is connected with a T-shaped block, and the steering wheel adapter plate can be directly slid into a T-shaped groove which is formed in advance in the suspension base plate during installation.
Drawings
FIG. 1 is a front view of a multi-function test stand;
FIG. 2 is a left side view of the multi-function test stand;
FIG. 3 is a right side view of the multi-function test stand;
FIG. 4 is a top view of the multi-function test stand;
FIG. 5 is a perspective view of a multi-function test stand.
Detailed Description
Example 1
With reference to fig. 1 to 5, the present embodiment provides a multifunctional test bench for a steering wheel system, the test bench includes a loading unit, a friction test unit and a comprehensive performance test unit, wherein the loading unit is located at an upper portion of the test bench, and a worm wheel screw lift is used to fix a steering wheel to be tested therein; the friction testing unit and the comprehensive performance testing unit are arranged below the loading unit side by side, and the loading unit moves above the friction testing unit and the comprehensive performance testing unit through the guide rail device;
the friction testing unit is internally provided with a heavy-load sliding block 14, a gear reduction motor and a linear guide rail, and the gear reduction motor is matched with a ball screw and the linear guide rail to provide horizontal tension to push the heavy-load sliding block to move relative to a steering wheel tire;
the comprehensive performance testing unit is internally provided with a metal pair grinding wheel 18 and a magnetic powder brake 16, the magnetic powder brake 16 is connected with the metal pair grinding wheel through a transmission shaft, and the steering wheel drives the metal pair grinding wheel to provide load for the metal pair grinding wheel when rotating, applies reverse braking torque and tests the comprehensive performance of the steering wheel.
As shown in fig. 1, the loading unit is a frame structure, and includes an upper moving frame 23, a lifting motor 1, a worm screw lifter 2, a coupling nut 3, a suspension system 5, a T-shaped slider 6, and an adapter plate 7;
a worm gear lead screw lifter 2 is arranged in the upper side moving frame 23, the output shaft of the lifting motor 1 is connected with the worm gear lead screw lifter 2, the connecting nut 3 is sleeved on the middle shaft of the worm gear lead screw lifter 2, and the bottom end of the connecting nut 3 is pressed on the top plate of the suspension system 5; the base plate of the suspension system 5 is connected with an adapter plate 7 through a T-shaped sliding block 6, a steering wheel system to be tested is installed below the connection adapter plate 7, the adapter plate 7 is in a cylindrical boss shape, and a fan-shaped opening is formed in one side of the boss.
In the loading unit, a lifting motor 1 and a worm screw rod lifter 2 are both installed at the top end of an upper side moving frame 23, an output shaft of the lifting motor 1 is connected with the worm screw rod lifter 2, the bottom end of a connecting nut 3 is connected with a first pull pressure sensor 4 and then pressed on a top plate of a suspension system 5, a bottom plate of the suspension system 5 is connected with an adapter plate 7 through a T-shaped slider 6, and a steering wheel system to be tested can be installed. In suspension system 5, the roof passes through optical axis bottom screw and links to each other with the bottom plate, sets up linear bearing between optical axis and the roof, and the roof all is connected the mounting bar with the bottom plate both sides, installs the rectangle spring between the mounting bar, and the guide bar passes from the mounting bar both sides, sets up linear bearing between guide bar and the mounting bar, and the guide bar both ends are fixed in upside moving frame 23 through the axle fixing base.
As shown in fig. 3 and 5, the suspension system 5 includes a top plate 501, a bottom plate 502, a rectangular spring 503, a linear bearing 504, an optical axis 505, a mounting bar 506, a guide rod 507, and a shaft fixing base 508; the top plate 501 and the bottom plate 502 are arranged in parallel, the top plate 501 is connected with the bottom plate 502 through an optical axis 505, and a linear bearing 504 is arranged between the optical axis 505 and the top plate 501; mounting strips 506 are arranged on two sides of the top plate 501 and the bottom plate 502, the mounting strips 506 are also in a top-bottom corresponding structure, and rectangular springs 503 are arranged between the mounting strips on the top and the mounting strips on the bottom; the top plate 501 is H-shaped with a circular opening in the middle for passing the optical axis 505. The bottom plate 502 is also H-shaped, with a threaded opening in the middle for connecting the optical axis 505 and a T-shaped slot at the bottom for mounting the T-shaped block 6.
The guide rod 507 passes through the two sides of the mounting bar 506 and penetrates through the mounting bar at the top and the mounting bar at the bottom, a linear bearing 504 is arranged at the joint of the guide rod 507 and the mounting bar 506, and the two ends of the guide rod 507 are fixed on the upper side moving frame 23 through a shaft fixing seat 508.
In order to control the pressure applied to the steering wheel, a first pull pressure sensor 4 is also arranged in the loading unit, and the first pull pressure sensor 4 is arranged at the bottom end of the coupling nut 3.
As shown in fig. 3, the whole friction test unit is located at one side of the bottom support frame 22, a gear reduction motor 8, a first coupler 9, a ball screw 10 and a heavy-load linear guide rail 12 are arranged in the friction test unit, the gear reduction motor 8 is installed on the bottom support frame 22, an output shaft is connected with the ball screw 10 through the first coupler 9, and optical axes at two ends of the ball screw 10 are installed on a bearing seat 30 through a deep groove ball bearing 29; a feed screw nut 1001 is arranged on the ball screw 10, the feed screw nut 1001 is connected with a heavy-load sliding block 14, and the heavy-load sliding block 14 is arranged on a heavy-load linear guide rail 12 on a bottom supporting frame 22; as a preferred embodiment of the present application, the heavy-duty linear guide rail 12 is provided with protective covers 13 at both sides thereof and first stoppers 28 at both ends thereof for performing stroke limitation.
In order to control the magnitude of the pushing force applied to the steering wheel, the friction test unit further comprises a second pull pressure sensor 11, and the second pull pressure sensor 11 is connected with the lead screw nut 1001 and is located between the lead screw nut 1001 and the heavy-load slider 14.
As shown in fig. 2, the overall performance testing unit is located on the other side of the bottom supporting frame 22, the magnetic powder brake 16, the torque sensor 17 and the metal-pair grinding wheel 18 are arranged in the overall performance testing unit, the magnetic powder brake 16, the torque sensor 17 and the metal-pair grinding wheel 18 are coaxially mounted, two ends of the magnetic powder brake 16, the torque sensor 17 and the metal-pair grinding wheel 18 are fixed on the bottom supporting frame 22, the magnetic powder brake 16 and the torque sensor 17 are connected through a second coupler 20, and the torque sensor 17 and the metal-pair grinding wheel 18 are connected through a third coupler 19 and a transmission shaft 21.
Further, the surface of the metal pair grinding wheel 18 is provided with a detachable obstruction bar 1801.
In the friction test unit, a gear reduction motor 8 is installed on a bottom support frame 22, an output shaft is connected with a ball screw 10 through a first coupler 9, optical axes at two ends of the ball screw 10 are installed on a bearing seat 30 through a deep groove ball bearing 29, a screw nut 1001 is connected with a second pull pressure sensor 11 and then is connected with a heavy-load sliding block 14, and the heavy-load sliding block 14 is arranged on a heavy-load linear guide rail 12 installed on the bottom support frame 22. The center of the heavy-load slide block 14 is provided with a through hole for passing through the ball screw 10, and the top surface can be provided with a material block 15 for friction coefficient test.
In the comprehensive performance test unit, the magnetic powder brake 16, the torque sensor 17 and the metal-pair grinding wheel 18 are all mounted on the bottom support frame 22, the magnetic powder brake 16 and the torque sensor 17 are connected through the second coupling 20, the torque sensor 17 and the metal-pair grinding wheel 18 are connected through the third coupling 19 and the transmission shaft 21, and the test unit can be used for applying reverse braking torque.
As shown in fig. 4, a linear guide 24, a slider 25 and a screw rod 26 are arranged between the upper moving frame 23 and the bottom supporting frame 22, the upper moving frame 23 is moved along the bottom supporting frame 22 by rotating a hand wheel 27, and two ends of the linear guide 24 are provided with second stoppers 31 for protection.
The multifunctional test bench for the steering wheel system can be used for carrying out bottom-touching tests such as comprehensive performance tests and friction coefficient tests.
The comprehensive performance test means that the test bench can provide rated pressurization loading conditions for the steering wheel. In a specific mode, the loading unit is moved to the upper part of the comprehensive performance testing unit by rotating the hand wheel 27, the slide block 25 of the upper side moving frame 23 is locked on the linear guide rail 24 by a screw, and the steering wheel to be tested is installed with the adapter plate 7 and the T-shaped slide block 6 and then slides into the T-shaped groove of the bottom plate of the suspension system 5. The elevator motor 1 controls the worm wheel screw rod elevator 2 to press the steering wheel on the metal pair grinding wheel 18 through the suspension system 5, the magnetic powder brake 16 applies load moment according to needs, and the steering wheel driver controls the steering wheel to complete related operation tests according to needs under the condition of pressurization loading.
Example 2
Based on the multifunctional test bench for the steering wheel system, the embodiment is a method for testing the steering wheel system by using the multifunctional test bench, and the test method comprises the following steps: rotating a hand wheel 27 to move the loading unit above the friction test unit and lock the slide block 25 of the upper moving frame 23 on the linear guide rail 24 through a screw; after a steering wheel to be tested is provided with an adapter plate 7 and a T-shaped slider 6, the steering wheel slides into a T-shaped groove of a bottom plate of a suspension system 5;
the elevator 1 controls a worm gear 26, the elevator 2 presses a steering wheel on the friction test unit through a suspension system 5, and a ball screw 10 drives a material block 15 to move through a gear reduction motor 8;
in the test process, the tension and pressure sensors for measuring the loading force and the friction force feed back data to the control system in real time, the loading lifting motor 1 is controlled according to the loading force requirement, the stability of the loading force is ensured, and after the test is finished, the friction coefficient value is calculated according to the test data of the two tension and pressure sensors.
The friction coefficient equal-touch test refers to a test of the friction coefficient of a steering wheel tire, an obstacle crossing test of a steering wheel system and a ditch crossing test of the steering wheel system through a test board. In a specific mode, the loading unit is moved to the upper part of the friction test unit by rotating the hand wheel 27, the slide block 25 of the upper moving frame 23 is locked on the linear guide rail 24 by a screw, and the steering wheel to be tested is installed with the adapter plate 7 and the T-shaped slide block 6 and then slides into the T-shaped groove of the bottom plate of the suspension system 5. The elevator 1 controls the worm gear screw 26, the elevator 2 presses a steering wheel on the friction test unit through the suspension system 5, the ball screw 10 of the gear reduction motor 8 drives the material block 15 to move, in the test process, the tension and pressure sensors for measuring the loading force and the friction force feed back data to the control system in real time, the loading elevator motor 1 is controlled according to the loading force requirement, the stability of the loading force is ensured, and after the test is finished, the friction coefficient value is calculated according to the test data of the two tension and pressure sensors. When the obstacle and ditch crossing test is carried out, the material block 15 is only required to be replaced by an obstacle block and a steel plate with a groove.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (10)
1. A method for testing a multi-functional test stand for a rudder wheel system, said method comprising: rotating a hand wheel (27) to move the loading unit above the friction test unit and lock a slide block (25) of the upper side moving frame (23) on a linear guide rail (24) through a screw; after a steering wheel to be tested is provided with an adapter plate (7) and a T-shaped slide block (6), the steering wheel slides into a T-shaped groove of a bottom plate of a suspension system (5);
the lifting motor (1) controls a worm screw (26) and a lifter (2) to press a steering wheel on the friction test unit through a suspension system (5), and a ball screw (10) drives a material block (15) to move through a gear reduction motor (8);
in the test process, the tension and pressure sensors for measuring the loading force and the friction force feed back data to the control system in real time, the loading lifting motor (1) is controlled according to the loading force requirement, the stability of the loading force is ensured, and after the test is finished, the friction coefficient value is calculated according to the test data of the two tension and pressure sensors.
2. The test method of the multifunctional test bench for the rudder wheel system according to claim 2, wherein the test bench comprises a loading unit, a friction test unit and a comprehensive performance test unit, wherein the loading unit is located at the upper part of the test bench, and the rudder wheel to be tested is fixed therein by a worm screw lifter; the friction test unit and the comprehensive performance test unit are arranged below the loading unit side by side, and the loading unit moves above the friction test unit and the comprehensive performance test unit through the guide rail device;
the friction testing unit is internally provided with a heavy-load sliding block (14), a gear reduction motor and a linear guide rail, and the gear reduction motor is matched with a ball screw and the linear guide rail to provide horizontal tension to push the heavy-load sliding block to move relative to a steering wheel tire;
the comprehensive performance testing unit is internally provided with a metal pair grinding wheel (18) and a magnetic powder brake (16), the magnetic powder brake (16) is connected with the metal pair grinding wheel through a transmission shaft, and the steering wheel drives the metal pair grinding wheel to provide load for the metal pair grinding wheel when rotating, applies reverse braking torque and tests the comprehensive performance of the steering wheel.
3. The test method for the multifunctional test bed of the steering wheel system according to claim 2, wherein the loading unit is a frame structure comprising an upper side moving frame (23), a lifting motor (1), a worm screw rod lifter (2), a coupling nut (3), a suspension system (5), a T-shaped slider (6) and an adapter plate (7);
a worm wheel lead screw lifter (2) is arranged in the upper side moving frame (23), an output shaft of the lifting motor (1) is connected with the worm wheel lead screw lifter (2), the connecting nut (3) is sleeved on a middle shaft of the worm wheel lead screw lifter (2), and the bottom end of the connecting nut (3) is pressed on a top plate of the suspension system (5); the base plate of the suspension system (5) is connected with an adapter plate (7) through a T-shaped sliding block (6), and a steering wheel system to be tested is installed below the connection adapter plate (7).
4. The test method of the multifunctional test bench for rudder wheel systems according to claim 3, characterized in that the suspension system (5) comprises a top plate (501), a bottom plate (502), a rectangular spring (503), a linear bearing (504), an optical axis (505), a mounting bar (506), a guide bar (507), a shaft fixing seat (508); the top plate (501) and the bottom plate (502) are arranged in parallel, the top plate (501) is connected with the bottom plate (502) through an optical axis (505), and a linear bearing (504) is arranged between the optical axis (505) and the top plate (501); mounting strips (506) are arranged on two sides of the top plate (501) and the bottom plate (502), the mounting strips (506) are of a top-bottom corresponding structure, and rectangular springs (503) are arranged between the mounting strips on the top and the mounting strips on the bottom; guide bar (507) pass from mounting bar (506) both sides, run through the mounting bar at top and the mounting bar of bottom, and guide bar (507) and mounting bar (506) junction set up linear bearing (504), and guide bar (507) both ends are fixed in upside moving frame (23) through axle fixing base (508).
5. Multifunctional test bench for rudder wheel system according to claim 3, characterised in that a first pull and pressure sensor (4) is also provided in the loading unit, said first pull and pressure sensor (4) being mounted at the bottom end of the coupling nut (3).
6. The testing method of the multifunctional testing platform for the steering wheel system according to claim 2, wherein the friction testing unit is integrally located at one side of the bottom supporting frame (22), a gear reduction motor (8), a first coupler (9), a ball screw (10) and a heavy-duty linear guide rail (12) are arranged in the friction testing unit, the gear reduction motor (8) is installed on the bottom supporting frame (22), an output shaft is connected with the ball screw (10) through the first coupler (9), and optical axes at two ends of the ball screw (10) are installed on the bearing seats (30) through deep groove ball bearings (29); the ball screw (10) is provided with a screw nut (1001), the screw nut (1001) is connected with a heavy-load sliding block (14), and the heavy-load sliding block (14) is arranged on a heavy-load linear guide rail (12) on the bottom supporting frame (22).
7. The testing method of the multifunctional test bench for the steering wheel system according to claim 6, characterized in that the friction test unit further comprises a second pull pressure sensor (11), and the second pull pressure sensor (11) is connected with the lead screw nut (1001) and is located between the lead screw nut (1001) and the heavy-duty slider (14).
8. The test method of the multifunctional test bench for the rudder wheel system according to claim 2, wherein the comprehensive performance test unit is integrally located at the other side of the bottom support frame (22), a magnetic powder brake (16), a torque sensor (17) and a metal pair grinding wheel (18) are arranged in the comprehensive performance test unit, the magnetic powder brake (16), the torque sensor (17) and the metal pair grinding wheel (18) are coaxially installed, two ends of the magnetic powder brake (16), the torque sensor (17) and the metal pair grinding wheel are fixed on the bottom support frame (22), the magnetic powder brake (16) and the torque sensor (17) are connected through a second coupling (20), and the torque sensor (17) and the metal pair grinding wheel (18) are connected through a third coupling (19) and a transmission shaft (21).
9. Method for testing of a multifunctional test bench for rudder wheel systems according to claim 8 characterised in that the surface of the metal pair grinding wheel (18) is provided with removable bars of obstruction (1801).
10. The testing method of the multifunctional testing platform for the steering wheel system according to claim 8, wherein a linear guide rail (24), a slider (25) and a screw rod (26) are arranged between the upper moving frame (23) and the bottom supporting frame (22), the upper moving frame (23) is moved along the bottom supporting frame (22) by rotating a hand wheel (27), and second stoppers (31) are arranged at two ends of the linear guide rail (24) for protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211309478.3A CN115683671A (en) | 2022-10-25 | 2022-10-25 | Test method of multifunctional test bench for steering wheel system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211309478.3A CN115683671A (en) | 2022-10-25 | 2022-10-25 | Test method of multifunctional test bench for steering wheel system |
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| CN115683671A true CN115683671A (en) | 2023-02-03 |
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| CN202211309478.3A Pending CN115683671A (en) | 2022-10-25 | 2022-10-25 | Test method of multifunctional test bench for steering wheel system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288835A (en) * | 2023-11-27 | 2023-12-26 | 江苏腾沅机械科技有限公司 | Automatic detection device for turbine blade |
| CN117516929A (en) * | 2024-01-08 | 2024-02-06 | 德州德迈传动机械有限公司 | Multifunctional screw rod lifter test bed |
-
2022
- 2022-10-25 CN CN202211309478.3A patent/CN115683671A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288835A (en) * | 2023-11-27 | 2023-12-26 | 江苏腾沅机械科技有限公司 | Automatic detection device for turbine blade |
| CN117288835B (en) * | 2023-11-27 | 2024-01-26 | 江苏腾沅机械科技有限公司 | Automatic detection device for turbine blade |
| CN117516929A (en) * | 2024-01-08 | 2024-02-06 | 德州德迈传动机械有限公司 | Multifunctional screw rod lifter test bed |
| CN117516929B (en) * | 2024-01-08 | 2024-04-12 | 河北德迈传动机械有限公司 | Multifunctional screw rod lifter test bed |
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