Dragging device for hybrid vehicle test

Abstract

The invention discloses a dragging device for a hybrid vehicle test. The dragging device comprises a dragging assembly, a fixing assembly and a driving assembly, the dragging assembly comprises a transverse pull rod and a connecting rod, the first end of the connecting rod is connected with the center position of the transverse pull rod, and the transverse pull rod is located between front wheels and rear wheels of the vehicle and abuts against a chassis of the vehicle; the fixing assembly comprises two walking rails, a moving block and a transmission rod, the two walking rails are placed on the ground, the two ends of the moving block are slidably connected with the two walking rails respectively, the second end of the connecting rod is connected with the first side wall of the moving block, and the first end of the transmission rod is connected with the second side wall of the moving block; the driving assembly is connected with the second end of the transmission rod and used for driving the transmission rod to move. The problem that the current fire vehicle cannot move is solved, the personnel demand in the emergency fire extinguishing process is reduced, the casualty risk and loss are reduced, and the emergency rescue capacity is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hybrid vehicle safety, and more particularly, to a dragging device for hybrid vehicle tests. Background Art

[0002] In recent years, hybrid vehicles have become increasingly popular in the market. With the need for transformation and development, the types of hybrid products of the company have increased rapidly, including extended-range, series-parallel, etc. Compared with traditional internal combustion engine vehicle tests, due to the coupling effect of the engine, battery, and motor in hybrid vehicles, the vehicle operating conditions are more complex, and the risk of fire tests has increased significantly compared to traditional internal combustion engine vehicles in the past. Moreover, battery fires are difficult to quickly extinguish with conventional fire extinguishers, and the personal safety, equipment safety, and test vehicle safety of enterprises need to be improved and perfected through technical means.

[0003] As the basic test equipment for vehicle power performance, economy, and high and low temperature tests, the original laboratory equipment in the vehicle chassis dynamometer laboratory did not consider the safety risks of hybrid tests, especially the characteristic that battery fires cannot be quickly extinguished. Combining with the current method of extinguishing hybrid vehicle fires (i.e., moving the whole vehicle to a safe or open-air location to control the fire), the existing chassis dynamometer laboratory of the enterprise cannot quickly move the vehicle on fire to a safe location outdoors, making it difficult to quickly control the hybrid vehicle fire and easily resulting in large-scale equipment property losses and damage to R & D resources.

[0004] Therefore, how to provide a dragging device for hybrid vehicle tests has become a technical problem urgently to be solved in this field. Summary of the Invention

[0005] An object of the present invention is to provide a new technical solution for a dragging device for hybrid vehicle tests.

[0006] According to a first aspect of the present invention, there is provided a dragging device for hybrid vehicle tests, comprising: a dragging component, a fixing component, and a driving component;

[0007] The dragging component includes a cross bar and a connecting rod. The first end of the connecting rod is connected to the central position of the cross bar. The cross bar is located between the front wheels and the rear wheels of the vehicle and abuts against the vehicle chassis.

[0008] The fixing component includes two walking tracks, a moving block, and a transmission rod. The two walking tracks are placed on the ground. The two ends of the moving block are respectively slidably connected to the two walking tracks. The second end of the connecting rod is connected to the first side wall of the moving block. The first end of the transmission rod is connected to the second side wall of the moving block.

[0009] The driving component is connected to the second end of the transmission rod and is used to drive the transmission rod to move.

[0010] Optionally, pulleys are provided at both ends of the moving block, and the pulleys are slidably arranged on the two walking tracks.

[0011] Optionally, there are two moving blocks, and the fixing component further includes two fixing rods. The two fixing rods are respectively arranged at both ends of the moving block, and both ends of the fixing rod are respectively connected to the two moving blocks.

[0012] Optionally, the fixing component further includes a pneumatic lifting rod. The pneumatic lifting rod is arranged at the central position of the moving block, and the pneumatic lifting rod is connected to the connecting rod.

[0013] Optionally, the driving component includes a driving cylinder, and the output shaft of the driving cylinder is connected to the second end of the transmission rod.

[0014] Optionally, the driving component includes a driving motor, a transmission shaft, a first gear and a second gear. The output end of the driving motor is connected to the transmission shaft. The first gear is sleeved on the transmission shaft, the second gear is sleeved on the second end of the transmission rod, and the first gear and the second gear are meshed.

[0015] Optionally, an installation hole is provided on the moving block, and the driving component further includes a bearing. The bearing is arranged in the installation hole, and the first end of the transmission rod is connected to the inner wall of the bearing.

[0016] Optionally, the driving component further includes a controller. The controller is electrically connected to the driving motor and is used to control the driving motor to be turned on or off.

[0017] Optionally, the driving component further includes a first sensor and a second sensor. The first sensor and the second sensor are respectively arranged at both ends of the walking track. The first sensor is arranged close to the transmission shaft, and the second sensor is arranged close to the cross tie rod. The first sensor and the second sensor are both electrically connected to the controller and are respectively used to detect the position of the moving block and transmit signals to the controller.

[0018] The beneficial effects of the present invention are as follows:

[0019] In the present invention, the first end of the connecting rod is connected to the central position of the cross tie rod, both ends of the moving block are respectively slidably connected to two traveling tracks, the second end of the connecting rod is connected to the first side wall of the moving block, the first end of the transmission rod is connected to the second side wall of the moving block, and the driving assembly is connected to the second end of the transmission rod. When an emergency such as a vehicle fire occurs, the driving assembly is started, so that the driving assembly drives the transmission rod to move. The movement of the transmission rod drives the moving block to move on the two traveling tracks, thereby driving the connecting rod and the cross tie rod to move, making the cross tie rod abut against the vehicle chassis, and towing the vehicle out of the test chamber, solving the problem that the fire vehicle cannot move currently, reducing the personnel requirements in the emergency fire extinguishing process, reducing the risk of casualties and losses, and improving the emergency rescue ability.

[0020] Other features and advantages of the present invention will become clear from the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. Brief Description of the Drawings

[0021] The drawings incorporated in and forming a part of this specification illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0022] Figure 1 It is a structural diagram of the dragging device for hybrid vehicle test of the present invention.

[0023] The labels in the figure are as follows: 1. Dragging assembly; 11. Cross tie rod; 12. Connecting rod; 2. Fixing assembly; 21. Traveling track; 22. Moving block; 23. Transmission rod; 24. Fixing rod; 25. Pneumatic lifting rod; 3. Driving assembly; 31. Driving motor; 32. Transmission shaft; 33. First gear; 34. Second gear; 35. Controller; 36. First sensor; 37. Second sensor; 4. Vehicle. Detailed Description of the Embodiments

[0024] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0025] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as a limitation on the present invention or its application or use.

[0026] Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the specification.

[0027] In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0028] As Figure 1 shown, an embodiment of the present invention provides a dragging device for a hybrid vehicle test, including: a dragging component 1, a fixing component 2, and a driving component 3.

[0029] The dragging component 1 includes a cross rod 11 and a connecting rod 12. The first end of the connecting rod 12 is connected to the central position of the cross rod 11. The cross rod 11 is located between the front wheels and the rear wheels of the vehicle 4 and abuts against the chassis of the vehicle 4.

[0030] It should be noted that the operator can adjust the cross rod 11 with different lengths according to the type of the vehicle 4 so that the cross rod 11 can be adapted to different vehicle models such as trucks, pickups, sedans, SUVs, and commercial vehicles.

[0031] The fixing component 2 includes two walking tracks 21, a moving block 22, and a transmission rod 23. The two walking tracks 21 are placed on the ground. The two ends of the moving block 22 are respectively slidably connected to the two walking tracks 21. The second end of the connecting rod 12 is connected to the first side wall of the moving block 22. The first end of the transmission rod 23 is connected to the second side wall of the moving block 22.

[0032] Specifically, universal wheels can be provided at the bottom of the walking track 21, thereby facilitating the movement of the walking track 21. The gap between the two walking tracks 21 is greater than the width of the vehicle 4, thereby facilitating the transmission rod 23 to drive the cross rod 11 and the connecting rod 12 to move, so that the vehicle 4 can be towed out of the test room from between the two walking tracks 21.

[0033] The driving component 3 is connected to the second end of the transmission rod 23 and is used to drive the transmission rod 23 to move.

[0034] Before the test, the vehicle 4 is parked on the test equipment in the test room. The operator selects a cross rod 11 with a different length according to the different vehicle 4 and places the cross rod 11 between the front wheels and the rear wheels of the vehicle 4. Then, the operator connects the connecting rod 12 to the middle position of the cross rod 11.

[0035] If a fire occurs in the vehicle 4, the operator starts the driving component 3 to drive the driving component 3 to drive the transmission rod 23 to move. The movement of the transmission rod 23 drives the moving block 22 to move on the two walking tracks 21. The movement of the moving block 22 drives the connecting rod 12 to move, and then the connecting rod 12 drives the cross rod 11 to move, so that the cross rod 11 abuts against the chassis of the vehicle 4, thereby towing the vehicle 4 out of the test room.

[0036] In the present invention, the first end of the connecting rod 12 is connected to the central position of the cross tie rod 11, both ends of the moving block 22 are respectively and slidably connected to two traveling tracks 21, the second end of the connecting rod 12 is connected to the first side wall of the moving block 22, the first end of the transmission rod 23 is connected to the second side wall of the moving block 22, and the driving assembly 3 is connected to the second end of the transmission rod 23. When an emergency such as a fire occurs in the vehicle 4, the driving assembly 3 is started, so that the driving assembly 3 drives the transmission rod 23 to move. The movement of the transmission rod 23 drives the moving block 22 to move on the two traveling tracks 21, thereby driving the connecting rod 12 and the cross tie rod 11 to move, making the cross tie rod 11 abut against the chassis of the vehicle 4 and towing the vehicle 4 out of the test chamber, solving the problem that the current vehicle 4 on fire cannot move, reducing the personnel requirements in the emergency fire extinguishing process, reducing the risk of casualties and losses, and enhancing the emergency rescue ability.

[0037] Further, the moving block 22 is a telescopic rod. The operator adjusts the distance between the two traveling tracks 21 according to the type of the vehicle 4 to be towed as needed, and makes the moving block 22 telescopic so as to be able to be placed on the two traveling tracks 21, thereby being able to adapt to different vehicle types such as trucks, pickups, sedans, SUVs, and commercial vehicles.

[0038] In an embodiment of the towing device for hybrid vehicle tests of the present invention, in order to ensure the stability of the movement of the moving block 22 on the traveling track 21, pulleys are provided at both ends of the moving block 22, and the pulleys are slidably arranged on the two traveling tracks 21.

[0039] In an embodiment of the towing device for hybrid vehicle tests of the present invention, there are two moving blocks 22, and the fixing assembly 2 further includes two fixing rods 24. The two fixing rods 24 are respectively arranged at both ends of the moving block 22, and both ends of the fixing rod 24 are respectively connected to the two moving blocks 22.

[0040] Specifically, the two fixing rods 24 are arranged at both ends of the connecting rod 12. Through the action of the fixing rods 24, the two moving blocks 22 can move on the traveling track 21 simultaneously, further improving the stability of the movement of the moving block 22.

[0041] In an embodiment of the towing device for hybrid vehicle tests of the present invention, the fixing assembly 2 further includes a pneumatic lifting rod 25. The pneumatic lifting rod 25 is arranged at the central position of the moving block 22, and the pneumatic lifting rod 25 is connected to the connecting rod 12.

[0042] In the present invention, by arranging the pneumatic lifting rod 25 at the central position of the moving block 22 and connecting the pneumatic lifting rod 25 to the connecting rod 12, the height of the connecting rod 12 and the cross tie rod 11 can be adjusted through the pneumatic lifting rod 25 so that the cross tie rod 11 can adapt to different types of vehicles 4.

[0043] In an embodiment of the dragging device for hybrid vehicle tests of the present invention, the driving assembly 3 includes a driving cylinder, and the output shaft of the driving cylinder is connected to the second end of the transmission rod 23.

[0044] In this embodiment, the driving cylinder drives the transmission rod 23 to move, and then the transmission rod 23 drives the moving block 22, the connecting rod 12 and the cross rod 11 to move, so that the cross rod 11 drags the vehicle 4, thereby pulling the vehicle 4 out of the laboratory to a safe location and reducing the fire loss.

[0045] In an embodiment of the dragging device for hybrid vehicle tests of the present invention, the driving assembly 3 includes a driving motor 31, a transmission shaft 32, a first gear 33 and a second gear 34. The output end of the driving motor 31 is connected to the transmission shaft 32. The first gear 33 is sleeved on the transmission shaft 32, and the second gear 34 is sleeved on the second end of the transmission rod 23, and the first gear 33 and the second gear 34 are meshed.

[0046] Specifically, when an emergency such as a fire occurs in the vehicle 4, the driving motor 31 drives the transmission shaft 32 to rotate. The rotation of the transmission shaft 32 drives the first gear 33 to rotate. The rotation of the first gear 33 drives the second gear 34 meshed with it to rotate. The rotation of the second gear 34 drives the rotating rod to rotate, so that the transmission shaft 32, the first gear 33, the second gear 34 and the rotating rod form a worm and worm gear structure, and then the rotating rod drives the moving block 22, the connecting rod 12 and the cross rod 11 to move stably, thereby ensuring that the vehicle 4 can be quickly and smoothly moved out of the laboratory to a safe location.

[0047] In an embodiment of the dragging device for hybrid vehicle tests of the present invention, the moving block 22 is provided with a mounting hole. The driving assembly 3 further includes a bearing, and the bearing is arranged in the mounting hole, and the first end of the transmission rod 23 is connected to the inner wall of the bearing.

[0048] The present invention ensures the stability of the dragging device for hybrid vehicle tests of the present invention by arranging the bearing in the mounting hole and connecting the first end of the transmission rod 23 to the inner wall of the bearing.

[0049] In an embodiment of the dragging device for hybrid vehicle tests of the present invention, the driving assembly 3 further includes a controller 35. The controller 35 is electrically connected to the driving motor 31 and is used to control the driving motor 31 to turn on or off.

[0050] Further, the driving assembly 3 further includes a first sensor 36 and a second sensor 37. The first sensor 36 and the second sensor 37 are respectively disposed at two ends of the traveling track 21. The first sensor 36 is disposed close to the transmission shaft 32, and the second sensor 37 is close to the cross tie rod 11. Both the first sensor 36 and the second sensor 37 are electrically connected to the controller 35, and are respectively configured to detect the position of the moving block 22 and transmit signals to the controller 35.

[0051] Specifically, before the test, the vehicle 4 is parked on the test equipment in the laboratory. The operator places the two traveling tracks 21 on the ground and places the sliding block on the two traveling tracks 21. At this time, by starting the driving motor 31, the moving block 22 moves on the traveling track 21 in a direction away from the transmission shaft 32. When the second sensor 37 detects the moving block 22, the second sensor 37 transmits a signal to the controller 35. The controller 35 receives the signal transmitted by the second sensor 37 and controls the driving motor 31 to stop running.

[0052] Then, the operator connects the connecting rod 12 to the central position of the cross tie rod 11, starts the driving motor 31, and the driving motor 31 drives the transmission shaft 32 to rotate. The rotation of the transmission shaft 32 drives the first gear 33 to rotate. The rotation of the first gear 33 drives the second gear 34 meshing with it to rotate. The rotation of the second gear 34 drives the rotating rod to rotate, so that the transmission shaft 32, the first gear 33, the second gear 34 and the rotating rod form a worm and worm gear structure. Furthermore, the rotating rod drives the moving block 22, the connecting rod 12 and the cross tie rod 11 to move stably to drive the vehicle 4 to move. When the first sensor 36 detects the moving block 22, it means that the moving block 22 has moved to the end of the traveling track 21. At this time, the first sensor 36 transmits a signal to the controller 35. The controller 35 receives the signal transmitted by the first sensor 36 and controls the driving motor 31 to stop running.

[0053] The present invention solves the problem that the current on - fire vehicle 4 cannot move, reduces the personnel requirements in the emergency fire - fighting process, reduces the risk of casualties and losses, and improves the emergency rescue ability.

[0054] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A towing device for hybrid vehicle testing, characterized in that: include: Towing assembly, fixing assembly and driving assembly; The towing assembly includes a tie rod and a connecting rod, wherein a first end of the connecting rod is connected to a center position of the tie rod, and the tie rod is located between the front wheels and the rear wheels of the vehicle and abuts against a chassis of the vehicle; The fixed assembly includes two walking tracks, a moving block and a transmission rod, the two walking tracks are placed on the ground, the two ends of the moving block are respectively slidably connected to the two walking tracks, the second end of the connecting rod is connected to the first side wall of the moving block, and the first end of the transmission rod is connected to the second side wall of the moving block; The driving assembly is connected to the second end of the transmission rod and is used for driving the transmission rod to move.

2. The towing device for hybrid vehicle testing according to claim 1, characterized in that: Pulleys are arranged at both ends of the moving block, and the pulleys are slidably arranged on the two walking tracks.

3. The towing device for hybrid vehicle testing according to claim 1, characterized in that: There are two moving blocks, and the fixing assembly further includes two fixing rods. The two fixing rods are respectively arranged at two ends of the moving block, and the two ends of the fixing rods are respectively connected to the two moving blocks.

4. The towing device for hybrid vehicle testing according to claim 1, characterized in that: The fixing assembly further comprises a pneumatic lifting rod, which is arranged at the center position of the moving block and is connected to the connecting rod.

5. The towing device for hybrid vehicle testing according to any one of claims 1 to 4, characterized in that: The driving assembly comprises a driving cylinder, and an output shaft of the driving cylinder is connected to the second end of the transmission rod.

6. The towing device for hybrid vehicle testing according to any one of claims 1 to 4, characterized in that: The driving assembly includes a driving motor, a transmission shaft, a first gear and a second gear. The output end of the driving motor is connected to the transmission shaft. The first gear is sleeved on the transmission shaft. The second gear is sleeved on the second end of the transmission rod, and the first gear and the second gear are meshed.

7. The towing device for hybrid vehicle testing according to claim 6, characterized in that: The moving block is provided with a mounting hole, and the driving assembly further comprises a bearing, the bearing is arranged in the mounting hole, and the first end of the transmission rod is connected to the inner wall of the bearing.

8. The towing device for hybrid vehicle testing according to claim 6, characterized in that: The driving assembly further includes a controller, which is electrically connected to the driving motor and is used to control the driving motor to be turned on or off.

9. The towing device for hybrid vehicle testing according to claim 8, characterized in that: The driving assembly also includes a first sensor and a second sensor, the first sensor and the second sensor are respectively arranged on the two ends of the walking track, the first sensor is arranged close to the transmission shaft, and the second sensor is close to the transverse rod, the first sensor and the second sensor are both electrically connected to the controller, and are respectively used to detect the position of the moving block and transmit the signal to the controller.

Images