A towing arrangement for a pure electrically driven trailer

Abstract

The application relates to the technical field of traction devices, in particular to a traction device for a pure electric trailer, which comprises a fixed base and a trailer bottom plate, the top of the fixed base is provided with sliding rails, the sliding rails are slidably provided with sliding members, the sliding members are provided with saddles, the saddles are provided with connecting grooves, the connecting grooves are internally provided with locking mechanisms, the trailer bottom plate is provided at the bottom with a connecting pin, and when the trailer bottom plate is connected with the saddles, the connecting pin is fixed in the connecting grooves through the locking mechanisms in the connecting grooves. The ultrasonic sensor is arranged, two connecting plates move to the outside of the connecting pin, the connecting pin is detected through the ultrasonic sensor, and detection data is transmitted to a background control system and compared with a standard value; if the detection value exceeds the standard value range interval, it is indicated that the inside of the connecting pin is damaged, and the connecting pin can be replaced by workers, so that the overall safety of the trailer during driving is ensured.

Description

Technical Field

[0001] This invention relates to the field of traction device technology, and in particular to a traction device for pure electric trailers. Background Technology

[0002] Electric trailers are heavy-duty transport vehicles that are connected to trailer heads via a towing pin. Their large cargo capacity makes them an important part of road freight transport. In actual use, semi-trailers need to be installed on a tractor unit, thus requiring the use of appropriate towing devices.

[0003] During use, trailers are mostly connected to the saddle using connecting pins to connect the trailer head and trailer body. As a crucial component for connecting the trailer body and the tractor, the stability of the connecting pin determines the safety of the trailer's operation. If the connecting pin is not properly inspected during use, even minor damage can exponentially increase the risk of the trailer's operation, affecting the personal safety of the driver. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a traction device for pure electric trailers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A towing device for a pure electric trailer includes a fixed base and a trailer floor. The top of the fixed base is provided with a slide rail, a sliding component is slidably mounted on the slide rail, a saddle is provided on the sliding component, a connecting groove is provided on the saddle, a locking mechanism is provided inside the connecting groove, and a connecting pin is installed at the bottom of the trailer floor. When the trailer floor and the saddle are connected, the connecting pin is fixed inside the connecting groove by the locking mechanism inside the connecting groove. A first auxiliary mechanism is provided on both sides of the fixed base, and a second auxiliary mechanism is provided on both sides of the bottom of the trailer floor.

[0007] Preferably, the first auxiliary mechanism includes a laser rangefinder sensor, with first fixing rods installed on both sides of the fixed base, a first connecting block movably connected to the side of the first fixing rod away from the fixed base, a lifting block movably connected to the top of the first connecting block, an installation block movably connected to the side of the lifting block closer to the fixed base, and the bottom of the laser rangefinder sensor movably connected to the top of the installation block.

[0008] Preferably, a first slot is provided on the side of the first fixed rod away from the fixed base, a threaded rod is rotatably installed inside the first slot, a rotary motor is installed at one end of the first fixed rod, the output end of the rotary motor movably passes through the end wall of the first fixed rod and is connected to the threaded rod, a sliding block is slidably installed inside the first slot, the threaded rod threaded through the sliding block, and the side of the sliding block near the first connecting block is connected to the first connecting block.

[0009] Preferably, an electric lifting rod is installed at the bottom of the first connecting block, with the lifting end of the electric lifting rod facing upward, and the lifting end of the electric lifting rod movably passing through the top of the first connecting block and connecting to the bottom of the lifting block.

[0010] Preferably, an electric telescopic rod is installed on the side of the lifting block away from the fixed base, with the telescopic end of the electric telescopic rod facing the fixed base, and the telescopic end of the electric telescopic rod movably passing through the lifting block and connecting to the mounting block.

[0011] Preferably, a rotating motor is embedded in the top of the mounting block, with the output end of the rotating motor facing upwards and connected to the bottom of the laser rangefinder sensor.

[0012] Preferably, the second auxiliary mechanism includes a connecting plate and clamping blocks. Second connecting blocks are movably installed on both sides of the bottom of the trailer floor. A connecting plate is movably installed on the side of the two second connecting blocks that are close to each other. An ultrasonic sensor is embedded in the side of the connecting plate near the connecting pin. Two clamping blocks are movably installed on the side of the connecting plate near the connecting pin.

[0013] Preferably, the trailer floor is provided with movable sliding grooves on both sides of the bottom, and a movable electric slider is installed on the top of the second connecting block, which is slidably installed inside the movable sliding groove.

[0014] Preferably, an electric extension rod is installed on the side of the second connecting block away from the connecting pin, and the extension end of the electric extension rod movably passes through the second connecting block and connects to the connecting plate.

[0015] Preferably, the connecting plate has two displacement grooves on the side near the connecting pin, and the clamping block is equipped with a displacement electric slider on the side near the connecting plate, and the displacement electric slider is slidably installed inside the displacement groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] In this invention, an ultrasonic sensor is installed. When the two connecting plates move to the outside of the connecting pin, the ultrasonic sensor detects the connecting pin and transmits the detection data to the background control system for comparison with the standard value. If the detection value exceeds the standard value range, it indicates that there is internal damage to the connecting pin, and the staff can replace it, thereby ensuring the overall safety of the trailer during operation.

[0018] In this invention, by setting up a clamping block and a laser rangefinder, when it is necessary to detect the deformation of the slide rail, the laser rangefinder is aligned with the slide rail to measure the change in distance between the laser rangefinder and the slide rail during the movement, and the detection value is transmitted to the background control system for comparison with the standard value. If the change in the detection data value exceeds the standard value change range, it indicates that the slide rail has deformed, and the staff can use the detection data to inspect and maintain the slide rail.

[0019] When it is necessary to test the connection stability of the saddle on the fixed base, during the connection between the saddle and the connecting pin, the detection head of the laser rangefinder sensor is rotated to face the saddle. Then, during the connection between the saddle and the connecting pin, the distance between the saddle and the laser rangefinder sensor is measured, and the change in the distance value during the measurement process is transmitted to the background control system for comparison with the standard value. If the detected value exceeds the standard value variation range, it indicates that there is a problem with the installation stability of the saddle, and the staff can repair it at this time.

[0020] When it is necessary to test the installation stability of the connecting pin, the clamping block holds the outer side of the connecting pin and shakes the connecting pin. The laser range sensor detects the distance change value of the connecting pin during the shaking process. If the detected value exceeds the standard value, it indicates that there is a problem with the stability of the connecting pin. The installation stability of the connecting pin can be tested through this operation method.

[0021] When the connecting pin is connected and positioned with the saddle, the connecting plate moves to the preset position, and the detection head of the laser rangefinder can rotate to face the connecting plate. Then, by comparing the distance values ​​measured by the two laser rangefinders with the standard value, and adjusting the direction of the trailer head according to the deviation range from the standard value, the central axis of the connecting pin can be aligned with the central axis of the saddle connecting groove. This operation method can prevent the two from directly docking when their central axes are not aligned, thus increasing the wear between the connecting pin and the saddle. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This is a schematic diagram of the saddle mounting structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the connecting pin installation structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the ultrasonic sensor mounting structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the laser ranging sensor mounting structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the rotating motor mounting structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the trailer floor and saddle structure to be installed according to the present invention.

[0030] In the diagram: 1. Fixed base; 2. Trailer floor plate; 3. Saddle; 5. First fixed rod; 6. Rotary motor; 7. First slot; 8. Threaded rod; 9. First connecting block; 10. Second connecting block; 11. Sliding block; 12. Connecting groove; 13. Slide rail; 14. Sliding component; 15. Connecting pin; 16. Moving slide; 17. Moving electric slider; 18. Electric extension rod; 19. Connecting plate; 20. Clamping block; 21. Ultrasonic sensor; 22. Displacement slide; 23. Displacement electric slider; 24. Electric lifting rod; 25. Lifting block; 26. Electric telescopic rod; 27. Mounting block; 28. Laser rangefinder sensor; 29. ​​Rotary motor. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] Reference Figure 1-8 A traction device for a pure electric trailer includes a fixed base 1 and a trailer base plate 2. The top of the fixed base 1 is provided with a slide rail 13, and a sliding member 14 is slidably mounted on the slide rail 13. A saddle 3 is provided on the sliding member 14, and a connecting groove 12 is provided on the saddle 3. A locking mechanism is provided inside the connecting groove 12. A connecting pin 15 is installed at the bottom of the trailer base plate 2. When the trailer base plate 2 and the saddle 3 are connected, the connecting pin 15 is fixed inside the connecting groove 12 by the locking mechanism inside the connecting groove 12. First auxiliary mechanisms are provided on both sides of the fixed base 1, and second auxiliary mechanisms are provided on both sides of the bottom of the trailer base plate 2. The connecting pin 15 engages with the inside of the connecting groove 12 and is fixed by the locking mechanism inside the connecting groove 12. This operation method completes the connection between the connecting pin 15 and the saddle 3. The first auxiliary mechanism can perform deformation detection of the slide rail 13 and installation stability detection of the saddle 3, and the second auxiliary mechanism can perform flaw detection of the connecting pin 15.

[0033] As an optimized technical solution of the present invention, the first auxiliary mechanism includes a laser rangefinder sensor 28. First fixing rods 5 are installed on both sides of the fixed base 1. A first connecting block 9 is movably connected to the side of the first fixing rod 5 away from the fixed base 1. A lifting block 25 is movably connected to the top of the first connecting block 9. A mounting block 27 is movably connected to the side of the lifting block 25 near the fixed base 1. The bottom of the laser rangefinder sensor 28 is movably connected to the top of the mounting block 27. By moving the laser rangefinder sensor 28 through the lifting block 25 and the mounting block 27, the laser rangefinder sensor 28 can be moved and used according to different usage requirements.

[0034] As a technical optimization of the present invention, a first slot 7 is formed on the side of the first fixed rod 5 away from the fixed base 1. A threaded rod 8 is rotatably installed inside the first slot 7. A rotary motor 6 is installed at one end of the first fixed rod 5. The output end of the rotary motor 6 movably passes through the end wall of the first fixed rod 5 and is connected to the threaded rod 8. A sliding block 11 is slidably installed inside the first slot 7. The threaded rod 8 is threaded through the sliding block 11. The side of the sliding block 11 near the first connecting block 9 is connected to the first connecting block 9. By rotating the threaded rod 8 driven by the rotary motor 6, the sliding block 11 can slide inside the first slot 7, thereby driving the first connecting block 9 to move on the first fixed rod 5 according to different usage requirements.

[0035] As a technical optimization of the present invention, an electric lifting rod 24 is installed at the bottom of the first connecting block 9. The lifting end of the electric lifting rod 24 faces upward, and the lifting end of the electric lifting rod 24 movably passes through the top of the first connecting block 9 and connects to the bottom of the lifting block 25. By raising and lowering the electric lifting rod 24, the lifting block 25 can be raised and lowered according to different usage requirements.

[0036] As a technical optimization of the present invention, an electric telescopic rod 26 is installed on the side of the lifting block 25 away from the fixed base 1. The telescopic end of the electric telescopic rod 26 faces the fixed base 1, and the telescopic end of the electric telescopic rod 26 movably passes through the lifting block 25 and connects to the mounting block 27. The extension and retraction of the electric telescopic rod 26 can drive the mounting block 27 to move according to different usage requirements.

[0037] As a technical optimization of the present invention, a rotary motor 29 is embedded in the top of the mounting block 27, with the output end of the rotary motor 29 facing upwards and connected to the bottom of the laser rangefinder 28. The rotary motor 29 can drive the laser rangefinder 28 to rotate according to different usage requirements.

[0038] As a technical optimization of the present invention, the second auxiliary mechanism includes a connecting plate 19 and clamping blocks 20. Second connecting blocks 10 are movably mounted on both sides of the bottom of the trailer floor 2. A connecting plate 19 is movably mounted on the side of the two second connecting blocks 10 that are close to each other. An ultrasonic sensor 21 is embedded in the side of the connecting plate 19 near the connecting pin 15. Two clamping blocks 20 are movably mounted on the side of the connecting plate 19 near the connecting pin 15. The ultrasonic sensor 21 can perform flaw detection on the connecting pin 15, and the clamping blocks 20 can clamp the connecting pin 15, thereby cooperating with the laser rangefinder sensor 28 to complete the installation stability detection of the connecting pin 15.

[0039] As a technical optimization of the present invention, movable sliding grooves 16 are provided on both sides of the bottom of the trailer floor 2, and a movable electric slider 17 is installed on the top of the second connecting block 10. The movable electric slider 17 is slidably installed inside the movable sliding groove 16. By sliding the movable electric slider 17 in the movable sliding groove 16, the second connecting block 10 can be moved on the trailer floor 2 according to different usage requirements.

[0040] As a technical optimization of the present invention, an electric extension rod 18 is installed on the side of the second connecting block 10 away from the connecting pin 15. The extension end of the electric extension rod 18 movably passes through the second connecting block 10 and connects to the connecting plate 19. By extending the electric extension rod 18, the connecting plate 19 can be moved on the second connecting block 10 according to different usage requirements.

[0041] As a technical optimization of the present invention, two displacement grooves 22 are formed on the side of the connecting plate 19 near the connecting pin 15, and a displacement electric slider 23 is installed on the side of the clamping block 20 near the connecting plate 19. The displacement electric slider 23 is slidably installed inside the displacement groove 22. By sliding the displacement electric slider 23 in the displacement groove 22, the clamping block 20 can be moved on the connecting plate 19 according to different usage requirements.

[0042] In use, all electrical devices in this invention are powered by a battery connected to the device via wires. The fixed base 1 is installed at the trailer head by bolts, which is a mature existing technology and will not be described further. The trailer floor plate 2 is part of the trailer body, and the way it is connected to the trailer head and the way it is installed with the connecting pin 15 are both mature existing technologies and will not be described further. The saddle 3 and connecting pin 15 used in this invention are both mature existing technologies and will not be described further. The ultrasonic sensor 21 and laser rangefinder 28 used in this invention are both mature existing technologies and will not be described further. The locking mechanism inside the connecting groove 12 on the saddle 3 is a mature existing technology and will not be described further.

[0043] like Figure 8 When the connecting pin 15 and the saddle 3 need to be installed, the trailer floor plate 2 is fixed in the preset position. The fixed base 1 installed above the rear of the trailer head moves closer to the trailer floor plate 2 as the trailer head moves, and follows the... Figure 8 Move from left to right as shown until the connecting pin 15 is inserted into the connecting groove 12 and locked by the locking mechanism inside the connecting groove 12, thus completing the installation of the saddle 3 and the connecting pin 15.

[0044] When deformation detection of slide rail 13 is required, the screw rod 8 is rotated by the rotary motor 6, so that the sliding block 11 can slide inside the first slot 7. At the same time, the laser range sensor 28 is aligned with slide rail 13 to measure the change in distance between the laser range sensor 28 and slide rail 13 during the movement. The detection value is transmitted to the background control system and compared with the standard value. If the change in the detection data value exceeds the standard value change range, it indicates that slide rail 13 has deformed. The staff can use the detection data to inspect and maintain slide rail 13.

[0045] When it is necessary to test the connection stability of the saddle 3 on the fixed base 1, during the connection and use of the saddle 3 and the connecting pin 15, the sliding block 11 slides in the first slot 7, causing the first connecting block 9 to move to the front or rear end of the saddle 3 according to different usage conditions. Then, the electric lifting rod 24 drives the lifting block 25 to rise to the preset usage position, at which point the lifting block 25 and the saddle 3 are at the same horizontal usage height. Then, the electric telescopic rod 26 drives the mounting block 27 to extend, causing the mounting block 27 to move towards the saddle 3. After the mounting block 27 moves to the preset position, the rotating motor 29 drives the laser rangefinder 28 to rotate, causing the detection head of the laser rangefinder 28 to rotate towards the saddle 3. Then, during the connection between the saddle 3 and the connecting pin 15, the laser rangefinder 28 measures the distance between the saddle 3 and the laser rangefinder 28, and transmits the change in distance value during the measurement process to the background control system for comparison with the standard value. If the detected value exceeds the standard value variation range, it indicates that there is a problem with the installation stability of the saddle 3, and the staff can then repair it.

[0046] When flaw detection is required on the connecting pin 15, the second connecting block 10 is moved to the preset position by sliding the movable slider 17 in the movable slide groove 16. Then, the connecting plate 19 is extended by the electric extension rod 18, so that both connecting plates 19 move towards the connecting pin 15. After the two connecting plates 19 move to the preset position, the ultrasonic sensor 21 is activated to detect the connecting pin 15 and transmit the detection data value to the background control system for comparison with the standard value. If the detection value exceeds the standard value range, it indicates that there is internal damage to the connecting pin 15, and the staff can replace it to ensure the overall safety of the trailer during operation.

[0047] When the installation stability of the connecting pin 15 needs to be tested, the fixed base 1 is moved to a preset position at the bottom of the trailer base plate 2 by the movement of the trailer head. The two connecting plates 19 are moved to preset positions on both sides of the connecting pin 15. Then, by sliding the displacement slider 23 in the displacement groove 22, the two clamping blocks 20 move closer to each other, so that the clamping blocks 20 can hold the outer side of the connecting pin 15. Then, after the first connecting block 9 moves to the preset use position on the first fixed rod 5, the lifting block 25 rises to the same horizontal height position as the connecting pin 15. The mounting block 27 moves toward the connecting pin 15, and the laser range sensor 28 rotates on the mounting block 27, causing the detection head of the laser range sensor 28 to rotate to the side facing the connecting pin 15. Then, the connecting pin 15 is moved by the clamping block 20, causing the connecting pin 15 to shake. At this time, the laser range sensor 28 detects the distance change of the connecting pin 15 during the shaking process. If the detected value exceeds the standard value, it indicates that the stability of the connecting pin 15 has a problem. This operation method can complete the test of the installation stability of the connecting pin 15.

[0048] When connecting pin 15 and saddle 3 are connected and positioned, such as Figure 8As shown, before the connecting pin 15 is connected to the saddle 3, when both move to the preset position, the connecting plate 19 moves to the preset use position, and the first connecting block 9 moves to the same use position as the connecting plate 19. Then, the electric lifting rod 24 drives the lifting block 25 to rise to the preset use position. Then, the electric telescopic rod 26 drives the mounting block 27 to extend to the preset use position. Subsequently, the lifting block 25 continues to rise and rotates in conjunction with the laser rangefinder 28, so that the detection head of the laser rangefinder 28 can rotate to face the connecting plate 19. Then, by comparing the distance values ​​measured by the two laser rangefinders 28 with the standard value, and adjusting the direction of the trailer head according to the deviation range from the standard value, the central axis of the connecting pin 15 can be aligned with the central axis of the connecting groove 12 of the saddle 3. This operation method can prevent the two from directly docking when their central axes are not aligned, thus increasing the wear between the connecting pin 15 and the saddle 3.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A towing device for a pure electric trailer, comprising a fixed base (1) and a trailer floor plate (2), characterized in that, The top of the fixed base (1) is provided with a slide rail (13), a sliding component (14) is slidably installed on the slide rail (13), a saddle (3) is provided on the sliding component (14), a connecting groove (12) is provided on the saddle (3), a locking mechanism is provided inside the connecting groove (12), a connecting pin (15) is installed at the bottom of the trailer base (2), when the trailer base (2) is connected to the saddle (3), the connecting pin (15) is fixed inside the connecting groove (12) by the locking mechanism inside the connecting groove (12), a first auxiliary mechanism is provided on both sides of the fixed base (1), and a second auxiliary mechanism is provided on both sides of the bottom of the trailer base (2). The second auxiliary mechanism includes a connecting plate (19) and a clamping block (20). The second connecting block (10) is movably installed on both sides of the bottom of the trailer floor (2). The connecting plate (19) is movably installed on the side of the two second connecting blocks (10) that are close to each other. An ultrasonic sensor (21) is embedded in the side of the connecting plate (19) that is close to the connecting pin (15). Two clamping blocks (20) are movably installed on the side of the connecting plate (19) that is close to the connecting pin (15). The trailer floor (2) has movable sliding grooves (16) on both sides of the bottom. The top of the second connecting block (10) is equipped with a movable electric slider (17), which is slidably installed inside the movable sliding groove (16). An electric extension rod (18) is installed on the side of the second connecting block (10) away from the connecting pin (15). The extension end of the electric extension rod (18) moves through the second connecting block (10) and connects to the connecting plate (19). The connecting plate (19) has two displacement grooves (22) on the side near the connecting pin (15), and the clamping block (20) is equipped with a displacement electric slider (23) on the side near the connecting plate (19). The displacement electric slider (23) is slidably installed inside the displacement groove (22).

2. A traction device for a pure electric trailer according to claim 1, characterized in that, The first auxiliary mechanism includes a laser rangefinder (28), and a first fixed rod (5) is installed on both sides of the fixed base (1). A first connecting block (9) is movably connected to the side of the first fixed rod (5) away from the fixed base (1). A lifting block (25) is movably connected to the top of the first connecting block (9). An installation block (27) is movably connected to the side of the lifting block (25) close to the fixed base (1). The bottom of the laser rangefinder (28) is movably connected to the top of the installation block (27).

3. A traction device for a pure electric trailer according to claim 2, characterized in that, The first fixed rod (5) has a first slot (7) on the side away from the fixed base (1). A threaded rod (8) is rotatably installed inside the first slot (7). A rotary motor (6) is installed at one end of the first fixed rod (5). The output end of the rotary motor (6) movably passes through the end wall of the first fixed rod (5) and is connected to the threaded rod (8). A sliding block (11) is slidably installed inside the first slot (7). The threaded rod (8) passes through the sliding block (11). The sliding block (11) is connected to the first connecting block (9) on the side close to the first connecting block (9).

4. A traction device for a pure electric trailer according to claim 2, characterized in that, An electric lifting rod (24) is installed at the bottom of the first connecting block (9). The lifting end of the electric lifting rod (24) faces upward, and the lifting end of the electric lifting rod (24) moves through the top of the first connecting block (9) and connects to the bottom of the lifting block (25).

5. A traction device for a pure electric trailer according to claim 2, characterized in that, An electric telescopic rod (26) is installed on the side of the lifting block (25) away from the fixed base (1). The telescopic end of the electric telescopic rod (26) faces the fixed base (1), and the telescopic end of the electric telescopic rod (26) moves through the lifting block (25) and is connected to the mounting block (27).

6. A traction device for a pure electric trailer according to claim 2, characterized in that, A rotating motor (29) is embedded in the top of the mounting block (27). The output end of the rotating motor (29) faces upward and is connected to the bottom of the laser rangefinder (28).

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