A protective system for vehicle roll testing

Abstract

The application discloses a protection system for vehicle roll test, which comprises a bottom plate, an inclined plate hinged to the top of the bottom plate through a shaft, an auxiliary plate connected to one side of the bottom plate through bolts, uniformly distributed connecting blocks connected to the outer wall of the top of the inclined plate through bolts, hanging holes opened in the outer wall of one side of the connecting blocks, a stopper arranged on the top of the inclined plate, a chain hung in the hanging holes of the connecting blocks, two connecting ports opened in the outer wall of one side of the stopper, one end of the chain located in the connecting ports, a plug-in port opened in the outer wall of the top of the stopper, a plug-in block plugged into the plug-in port, a pin rod integrally formed on the outer wall of the bottom of the plug-in block, and an adjusting plate hinged to the outer wall of the top of the inclined plate through a shaft. The stopper can prevent the vehicle from side slipping, the stopper is blocked when the stopper is invalid, the vehicle can be blocked, and accidents of the vehicle in the roll test can be prevented.

Description

Technical Field

[0001] This invention relates to the field of vehicle roll test technology, and more specifically to a protective system for vehicle roll tests. Background Technology

[0002] The vehicle roll test is a test used to inspect vehicles and determine the roll stability angle, maximum rollover stability angle, center of gravity position, wheel mass, axle mass, total mass, and axle load ratio of wheeled vehicles.

[0003] Chinese Patent No. 201710115918.4 discloses a half-vehicle roll test bench, which consists of a left-right symmetrical suspension assembly, a roll force generating mechanism, an electronic control system with displacement sensors, and a test vehicle frame; the roll force is calculated based on the vehicle turning model in the computer host, and the two ends of the vehicle frame are suspended by steel wire ropes to form a counterweight.

[0004] Existing vehicle roll test protection equipment uses a single type of protection, making accidents more likely during roll tests. Furthermore, the equipment cannot be adjusted according to the vehicle's stopping position, making stopping the vehicle during roll tests difficult. Therefore, there is an urgent need to design a vehicle roll test protection system to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a protective system for vehicle rollover testing to address the aforementioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A vehicle rollover protection system includes a base plate. An inclined plate is hinged to the top of the base plate via a shaft. An auxiliary plate is bolted to one side of the base plate. Evenly distributed connecting blocks are bolted to the top outer wall of the inclined plate. Hanging holes are formed on one side outer wall of each connecting block. A stop block is provided on the top of the inclined plate. A chain is hung inside the hanging holes of the connecting blocks. Two connection ports are formed on one side outer wall of the stop block, with one end of the chain located inside one of the connection ports. An insertion interface is formed on the top outer wall of the stop block, and an insertion block is inserted into the insertion interface. The bottom outer wall of the plug-in block is integrally formed with a pin rod. The top outer wall of the inclined plate is hinged to an adjusting plate via a shaft. A baffle is provided on one side of the adjusting plate. An adjusting cylinder is hinged between the auxiliary plate and the adjusting plate via a shaft. The top outer wall of the base plate has a mounting groove. A supporting cylinder is hinged inside the mounting groove via a shaft. The output end of the supporting cylinder is hinged to the inclined plate via a shaft. A tilt sensor is provided on the top of the inclined plate. A controller is bolted to the top outer wall of the auxiliary plate. The tilt sensor is electrically connected to the controller via a wire.

[0008] Preferably, a mounting plate is welded to the top outer wall of the tilting plate, and the tilt sensor is connected to the mounting plate by bolts.

[0009] Preferably, a housing is bolted to one side of the outer wall of the adjusting plate, and two threaded sleeves are connected between the two inner walls of the housing via bearings. Two screws are welded to one side of the outer wall of the baffle, and the two screws are respectively threaded to the threaded sleeves.

[0010] Preferably, a worm is connected between the inner walls of the two sides of the housing via a bearing, and a worm wheel is welded to the outside of the screw sleeve, with the worm meshing with the worm wheel.

[0011] Preferably, a buffer layer is adhered to one side of the outer wall of the baffle, and the buffer layer is made of rubber.

[0012] Preferably, a pull ring is welded to the top outer wall of the plug block, and the pin is adapted to the chain.

[0013] Preferably, an anti-tipping device is attached inside the hanging hole of the connecting block, and the anti-tipping device includes a steel wire rope.

[0014] Preferably, a connecting ring is welded to one end of the wire rope, and a stud is welded to the end of the wire rope away from the connecting ring. The stud is adapted to the connecting ring, and two adjusting nuts are threadedly connected to the outside of the stud.

[0015] Preferably, a handwheel is connected to one side of the outer wall of the housing via a bearing, and one end of the connecting shaft of the handwheel is connected to the worm gear via a spline.

[0016] Preferably, the chain is made of stainless steel and the screw is made of nitrided steel.

[0017] In the above technical solution, the protective system for vehicle rollover testing provided by the present invention has beneficial effects.

[0018] (1) The present invention utilizes the ability of the block to prevent the vehicle from skidding. The baffle can block the vehicle when the block is ineffective, thereby preventing accidents during the vehicle tilt test.

[0019] (2) The present invention uses a worm, a screw sleeve and a screw to drive the worm wheel and the screw sleeve to rotate when the worm rotates, so that the screw sleeve can drive the protective plate to move through the screw, thereby making the distance between the protective plate and the vehicle under test adjustable, making it more convenient for the vehicle under test to park.

[0020] (3) The present invention uses an anti-rollover device to fix the connecting block to the wheel hub of the test vehicle by means of the steel wire rope of the anti-rollover device, so that the anti-rollover device can simulate the effect of preventing the test vehicle from rolling over, thereby improving the safety level of the protection system.

[0021] (4) The present invention uses a tilt sensor and a controller to detect the tilt angle of the tilt plate and transmits it to the controller through an electrical signal, so that the controller can control the adjusting cylinder to work, so that the adjusting plate can always remain perpendicular to the tilt plate during the tilting process, which is more secure than directly fixing the adjusting plate to the tilt plate. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a vehicle rollover test protection system according to the present invention.

[0024] Figure 2 This is a schematic diagram of the internal structure of the housing provided in an embodiment of a vehicle rollover test protection system according to the present invention.

[0025] Figure 3 This is a schematic diagram of the anti-rollover device structure provided in an embodiment of a vehicle rollover test protection system according to the present invention.

[0026] Figure 4 This is an enlarged structural schematic diagram of point A provided in an embodiment of a vehicle rollover test protection system of the present invention.

[0027] Figure 5 This is a schematic diagram of the plug-in block structure provided in an embodiment of a vehicle rollover test protection system according to the present invention.

[0028] Figure 6 This is a control flowchart provided for an embodiment of a vehicle rollover test protection system according to the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Base plate, 2. Auxiliary plate, 3. Inclined plate, 4. Stop block, 5. Chain, 6. Connecting block, 7. Hanging hole, 8. Mounting groove, 9. Support cylinder, 10. Anti-rollover device, 11. Adjusting plate, 12. Adjusting cylinder, 13. Housing, 14. Screw sleeve, 15. Screw, 16. Worm gear, 17. Worm, 18. Handwheel, 19. Baffle, 20. Buffer layer, 21. Wire rope, 22. Connecting ring, 23. Stud, 24. Adjusting nut, 25. Mounting plate, 26. Inclined sensor, 27. Connecting port, 28. Insertion block, 29. Pull ring, 30. Insertion interface, 31. Pin, 32. Controller. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] like Figure 1-6 As shown in the figure, an embodiment of the present invention provides a vehicle rollover test protection system, including a base plate 1. An inclined plate 3 is hinged to the top of the base plate 1 via a shaft. An auxiliary plate 2 is bolted to one side of the base plate 1. Evenly distributed connecting blocks 6 are bolted to the top outer wall of the inclined plate 3. Hanging holes 7 are formed on one side outer wall of the connecting blocks 6. A stop block 4 is provided on the top of the inclined plate 3. A chain 5 is hung inside the hanging holes 7 of the connecting blocks 6. Two connection ports 27 are formed on one side outer wall of the stop block 4. One end of the chain 5 is located inside the connection port 27. An insertion interface 30 is formed on the top outer wall of the stop block 4, and a plug is inserted into the insertion interface 30. Connecting block 28 has a pin 31 integrally formed on the bottom outer wall. The top outer wall of the inclined plate 3 is hinged to an adjusting plate 11 via a shaft. A baffle 19 is provided on one side of the adjusting plate 11. An adjusting cylinder 12 is hinged between the auxiliary plate 2 and the adjusting plate 11 via a shaft. The top outer wall of the base plate 1 has an installation groove 8. A support cylinder 9 is hinged inside the installation groove 8 via a shaft. The output end of the support cylinder 9 is hinged to the inclined plate 3 via a shaft. An tilt sensor 26 is provided on the top of the inclined plate 3. A controller 32 is bolted to the top outer wall of the auxiliary plate 2. The tilt sensor 26 is electrically connected to the controller 32 via a wire.

[0033] Specifically, in this embodiment, a base plate 1 is included. An inclined plate 3 is hinged to the top of the base plate 1 via a shaft. The vehicle to be tested is placed on the inclined plate 3, allowing the vehicle to tilt when the base plate 1 rotates. An auxiliary plate 2 is bolted to one side of the base plate 1. Evenly distributed connecting blocks 6 are bolted to the top outer wall of the inclined plate 3. Hanging holes 7 are formed on one side of the outer wall of the connecting blocks 6. A stop block 4 is provided on the top of the inclined plate 3 to block the vehicle's wheels. A chain 5 is hung inside the hanging holes 7 of the connecting blocks 6. Two connecting ports 27 are formed on one side of the outer wall of the stop block 4, with one end of the chain 5 located inside the connecting port 27. An insertion interface 30 is formed on the top outer wall of the stop block 4, and an insertion interface 30 is inserted inside the insertion interface 30. A plug-in block 28 is connected, and a pin 31 is integrally formed on the bottom outer wall of the plug-in block 28. When the pin 31 is plugged into the chain 5, the stop block 4 can block the wheels of the vehicle to prevent the vehicle under test from slipping severely. An adjusting plate 11 is hinged to the top outer wall of the inclined plate 3 via a shaft. A baffle 19 is provided on one side of the adjusting plate 11. An adjusting cylinder 12 is hinged between the auxiliary plate 2 and the adjusting plate 11 via a shaft. An installation groove 8 is opened on the top outer wall of the base plate 1. A support cylinder 9 is hinged to the inside of the installation groove 8 via a shaft. The output end of the support cylinder 9 is hinged to the inclined plate 3 via a shaft. An inclined sensor 26 is provided on the top of the inclined plate 3. The inclined sensor 26 is model ZCT1000ML-S230.

[0034] The top outer wall of the auxiliary plate 2 is bolted to a controller 32, model WEST P6100. The tilt sensor 26 is electrically connected to the controller 32 via a wire. The support cylinder 9 and the adjusting cylinder 12 are controlled by a hydraulic system. The controller 32 is connected to the relief valve of the hydraulic system, enabling the controller 32 to control the support cylinder 9 and the adjusting cylinder 12 to work. The tilt sensor 26 detects the tilt angle of the tilt plate 3 and transmits it to the controller 32 via an electrical signal, enabling the controller 32 to control the adjusting cylinder 12 to work. This ensures that the adjusting plate 11 remains perpendicular to the tilt plate 3 during the tilting process, which is more secure than directly fixing the adjusting plate 11 to the tilt plate 3. At the same time, the adjusting plate 11 can be placed parallel to the auxiliary plate 2, thereby reducing the space occupied.

[0035] The present invention provides a vehicle rollover protection system. The present invention utilizes the block 4 to prevent the vehicle from skidding, and the baffle 19 can block the vehicle when the block 4 is ineffective, thereby preventing accidents during the rollover test.

[0036] In another embodiment of the present invention, an installation plate 25 is welded to the top outer wall of the tilt plate 3, and the tilt sensor 26 is connected to the installation plate 25 by bolts, so that the tilt sensor 26 is fixed to the installation plate 25.

[0037] In another embodiment of the present invention, a housing 13 is bolted to one side of the outer wall of the adjusting plate 11, and two threaded sleeves 14 are connected between the two inner walls of the housing 13 by bearings. Two screws 15 are welded to one side of the outer wall of the baffle 19, and the two screws 15 are threaded to the threaded sleeves 14 respectively, so that when the two threaded sleeves 14 rotate synchronously, they can drive the baffle 19 to move.

[0038] In another embodiment of the present invention, a worm 17 is connected between the inner walls of the two sides of the housing 13 by a bearing, and a worm wheel 16 is welded to the outside of the screw sleeve 14. The worm 17 meshes with the worm wheel 16, and the rotation of the worm 17 drives the two worm wheels 16 to rotate synchronously, so that the two worm wheels 16 drive the two screw sleeves 14 to rotate synchronously.

[0039] In another embodiment of the present invention, a buffer layer 20 is adhered to one side of the outer wall of the baffle 19. The buffer layer 20 is made of rubber and serves as a buffer to prevent the tested vehicle from directly colliding with the baffle 19.

[0040] In another embodiment of the present invention, a pull ring 29 is welded to the top outer wall of the plug block 28, and the pin 31 is adapted to the chain 5 so that the pin 31 can be inserted into the inside of the chain 5, and the plug block 28 can be easily pulled out through the pull ring 29.

[0041] In another embodiment of the present invention, an anti-rollover device 10 is attached inside the hanging hole 7 of the connecting block 6. The anti-rollover device 10 includes a steel wire rope 21 and is connected to the wheel hub of the vehicle to prevent the vehicle from skidding.

[0042] In another embodiment of the present invention, a connecting ring 22 is welded to one end of the wire rope 21, and a stud 23 is welded to the end of the wire rope 21 away from the connecting ring 22. The stud 23 is adapted to the connecting ring 22. In use, the stud 23 is inserted into the inside of the connecting ring 22. Two adjusting nuts 24 are threadedly connected to the outside of the stud 23. The adjusting nuts 24 are threadedly connected to the stud 23, so that the adjusting nuts 24 can block the connecting ring 22, thereby allowing the wire rope 21 to be hooked with the hanging hole 7 of the connecting block 6.

[0043] In another embodiment of the present invention, a handwheel 18 is connected to one side of the outer wall of the housing 13 via a bearing. One end of the connecting shaft of the handwheel 18 is connected to the worm gear 17 via a spline. The handwheel 18 facilitates the rotation of the worm gear 17, which in turn drives the worm wheel 16 and the screw sleeve 14 to rotate. This allows the screw sleeve 14 to move the protective plate via the screw 15, thereby adjusting the distance between the protective plate and the vehicle under test, making it more convenient to park the vehicle under test.

[0044] In another embodiment of the present invention, the chain 5 is made of stainless steel, which makes the chain 5 have better tensile strength, and the screw 15 is made of nitrided steel, which makes the threads of the screw 15 less prone to deformation.

[0045] Working principle: When a roll test is required, the vehicle to be tested is driven onto the tilt plate 3, with the vehicle body parallel to the baffle 19. When the rollover device needs to be installed, the steel wire rope 21 is threaded onto the vehicle's wheel hub, and one end of the stud 23 is inserted into the connecting ring 22. Then, the adjusting nut 24 is threaded onto the stud 23, so that the steel wire rope 21 is hooked into the hanging hole 7 of the connecting block 6. When the anti-skid device needs to be installed, one end of the chain 5 is hooked into the hanging hole 7 of the connecting block 6, and the stop block 4 is positioned on the tilted side of the vehicle, with a 2cm gap between the stop block 4 and the vehicle's tire. The plug block 28 is pulled out from the plug interface 30 of the stop block 4 through the pull ring 29, and the chain 5 is connected to the connecting port 27. Pulling the internal mechanism of the chain 5 fully unfolds it. Then, the plug block 28 is re-inserted into the plug interface 30 of the stop block 4, so that the pin 31 is inserted into the chain 5. Then, the worm gear 17 is rotated by the handwheel 18, so that the worm gear 17 drives the worm wheel 16 to rotate, so that the worm wheel 16 drives the screw 15 to one end, thereby bringing the baffle 19 closer to the vehicle body, so that the distance between the baffle 19 and the vehicle body is 2cm. At this time, the support cylinder 9 is activated, so that the support cylinder 9 supports and lifts one side of the tilt plate 3, so that the tilt plate 3 tilts. At the same time, the tilt sensor 26 detects the tilt angle of the tilt plate 3 and transmits it to the controller 32, so that the controller 32 controls the oil supply of the regulating cylinder, so that the baffle 19 can rotate with the rotation of the tilt plate 3.

[0046] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A protective system for vehicle rollover testing, comprising a base plate (1), characterized in that, An inclined plate (3) is hinged to the top of the base plate (1) via a shaft. An auxiliary plate (2) is bolted to one side of the base plate (1). Evenly distributed connecting blocks (6) are bolted to the top outer wall of the inclined plate (3). Hanging holes (7) are opened on one side outer wall of the connecting block (6). A stop block (4) is provided on the top of the inclined plate (3). A chain (5) is hung inside the hanging hole (7) of the connecting block (6). Two connecting blocks are opened on one side outer wall of the stop block (4). The chain (5) is located inside the connection port (27). The top outer wall of the stop block (4) has a plug-in interface (30). A plug-in block (28) is inserted into the plug-in interface (30). A pin (31) is integrally formed on the bottom outer wall of the plug-in block (28). An adjusting plate (11) is hinged to the top outer wall of the inclined plate (3) through a shaft. A baffle (19) is provided on one side of the adjusting plate (11). The auxiliary plate (2) and the adjusting plate (11) are connected together. An adjusting cylinder (12) is hinged to the bottom plate (1) via a shaft. An installation groove (8) is opened on the top outer wall of the bottom plate (1). A support cylinder (9) is hinged to the inside of the installation groove (8) via a shaft. The output end of the support cylinder (9) is hinged to the inclined plate (3) via a shaft. An inclined sensor (26) is provided on the top of the inclined plate (3). A controller (32) is bolted to the top outer wall of the auxiliary plate (2). The inclined sensor (26) is electrically connected to the controller (32) via a wire. An installation plate (25) is welded to the top outer wall of the inclined plate (3). The inclined sensor (26) is bolted to the installation plate (25). A housing (13) is bolted to one side outer wall of the adjusting plate (11). Two threaded sleeves (14) are connected between the two inner walls of the housing (13) via bearings. Two screws (15) are welded to one side outer wall of the baffle (19). The two screws (15) are respectively threaded to the threaded sleeves (14).

2. The vehicle rollover protection system according to claim 1, characterized in that, A worm (17) is connected between the inner walls of the two sides of the housing (13) by a bearing, and a worm wheel (16) is welded to the outside of the screw sleeve (14). The worm (17) meshes with the worm wheel (16).

3. The vehicle rollover protection system according to claim 1, characterized in that, A buffer layer (20) is bonded to one side of the outer wall of the baffle (19), and the buffer layer (20) is made of rubber.

4. The vehicle rollover protection system according to claim 1, characterized in that, The top outer wall of the plug block (28) is welded with a pull ring (29), and the pin (31) is adapted to the chain (5).

5. A vehicle rollover protection system according to claim 1, characterized in that, An anti-rollover device (10) is attached inside the hanging hole (7) of the connecting block (6), and the anti-rollover device (10) includes a steel wire rope (21).

6. A vehicle rollover protection system according to claim 5, characterized in that, One end of the wire rope (21) is welded with a connecting ring (22), and the other end of the wire rope (21) away from the connecting ring (22) is welded with a stud (23). The stud (23) is adapted to the connecting ring (22), and the stud (23) is connected to two adjusting nuts (24) by threads.

7. A vehicle rollover protection system according to claim 6, characterized in that, A handwheel (18) is connected to one side of the outer wall of the housing (13) via a bearing. One end of the connecting shaft of the handwheel (18) is connected to the worm gear (17) via a spline.

8. A vehicle rollover protection system according to claim 1, characterized in that, The chain (5) is made of stainless steel, and the screw (15) is made of nitrided steel.

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