Guiding type trailer ball cover for middle axle trailer
By designing a guide cover on the trailer ball cover of the center shaft trailer and combining software algorithms, the automatic docking between the center shaft trailer and the tractor is realized, solving the problems of cumbersome operation and interference in the prior art, and reducing the vehicle weight and energy consumption.
Patent Information
- Application Number
- CN202422342960.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The trailer ball cover of the existing mid-axle trailer is cumbersome and easy to interfere when docking at the rear of the tractor, and automatic docking cannot be achieved.
A guided trailer ball cover is designed. By designing a guide cover under the trailer ball cover and combining software algorithms, the automatic docking between the trailer and the tractor is realized. The guide cover is optimized based on the original size, reducing the radius size in the xy plane direction and avoiding interference when docking with the rear of the tractor.
Automatic docking between the mid-axle trailer and the tractor is realized, avoiding docking interference, and reducing the vehicle weight by about 30%, reducing vehicle energy consumption.
Smart Images
Figure CN222973137U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of the towing and connecting structure of a mid - shaft trailer, and particularly relates to a guiding trailer ball cover for a mid - shaft trailer. Background Art
[0002] A trailer ball cover refers to a ball - shaped structure mainly used for the towing and connection of a mid - shaft trailer, located at the front towing and connection position of the mid - shaft trailer. At present, the docking device between a traveling mid - shaft trailer and a tractor mostly adopts manual docking. After parking, the trailer ball cover at the front of the trailer is manually docked with the trailer ball at the rear of the tractor, and the operation is rather cumbersome. Therefore, a guiding trailer ball cover is needed to provide a guiding mechanism and combine software algorithms to realize the automatic docking of the trailer and the tractor. Considering that the guiding mechanism is relatively large in size during the actual application process, it may cause interference with the rear bumper of the tractor and the trailer ball arm at the rear. In order to provide a trailer ball cover that can be guided and has an optimized size to prevent interference with the rear bumper of the tractor and the trailer ball arm at the rear has become an urgent problem in automobile use at present. Summary of the Invention
[0003] To solve the above - mentioned technical problems, the utility model provides a guiding trailer ball cover for a mid - shaft trailer, which includes a trailer ball cover. A trailer ball cover connecting bracket is connected to the rear side of the trailer ball cover in a communicating manner. The trailer ball cover connecting bracket and the trailer ball cover are integrally cast. A guiding cover is connected to the lower part of the trailer ball cover by welding, and a guiding port communicating with the lower part of the trailer ball cover is opened above the guiding cover.
[0004] In some preferred embodiments, the guiding port extends backward by a length greater than the diameter of the trailer ball cover, so that there is enough redundant space for the towing ball head of the used tractor to slide into the trailer ball cover.
[0005] In some preferred embodiments, a load - bearing rib plate is connected between the lower side of the trailer ball cover connecting bracket and the upper side of the guiding cover by welding. The load - bearing rib plate is coplanar with the side walls on both sides of the trailer ball cover connecting bracket, and the distance between the two load - bearing rib plates is equal to the width of the guiding port, so that there is a smooth and unobstructed connection between the guiding port and the trailer ball cover.
[0006] In some preferred embodiments, the height from the vertex to the bottom edge of the guiding cover is less than or equal to 3 cm.
[0007] In some preferred embodiments, the planar diameter of the horizontal projection of the guiding cover is less than or equal to three times the diameter of the trailer ball cover.
[0008] In some embodiments, as a preferred solution, there is also a reinforcing structure between the trailer ball cover and the guiding cover. The reinforcing structure includes a cylindrical reinforcing rib shell and a reinforcing flange. The cylindrical reinforcing rib shell is connected between the trailer ball cover and the guiding cover by welding. The reinforcing flange is welded to the outside of the joint between the cylindrical reinforcing rib shell and the guiding cover. There is also an edge along the lower side of the trailer ball cover connecting bracket, and the edge is welded to the end of the reinforcing flange.
[0009] In some embodiments, as a preferred solution, the guiding cover is one or more of aluminum-lithium alloy, titanium-aluminum alloy, magnesium alloy, beryllium alloy, and titanium alloy.
[0010] Compared with the prior art, the advantages of the present utility model are as follows:
[0011] The guiding type trailer ball cover of the present utility model realizes the automatic docking of the trailer and the tractor by designing the guiding cover and combining software algorithms. On the basis of the original size, the designed guiding cover reduces the radius size in the xy plane direction, ensuring that the trailer ball cover can be smoothly coupled and docked with the towing ball head. The optimization of the guiding cover size can avoid interference when docking with the rear of the tractor, and at the same time, a part of the structure is retained, so that the ball cover still has a guiding function during automatic docking, solving the problem that the traditional trailer ball cover cannot provide the guiding conditions required for automatic docking. Through size optimization, shape optimization, combined with the application of lightweight materials and advanced processes, the weight is reduced by about 30%, reducing the vehicle energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structure schematic diagram of the guiding type trailer ball cover of the present utility model.
[0013] Figure 2 It is a three-dimensional structure schematic diagram of another perspective of the guiding type trailer ball cover of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] For the convenience of understanding the technical solution of the present utility model, the following is a detailed description in combination with the accompanying drawings and specific embodiments.
[0015] See Figure 1 and 2, A guiding trailer ball cover for a mid - shaft trailer, comprising a trailer ball cover 4. A trailer ball cover connecting bracket 1 is connected and communicated at the rear side of the trailer ball cover 4. The trailer ball cover connecting bracket 1 and the trailer ball cover 4 are integrally cast. A guiding cover 5 is connected to the lower part of the trailer ball cover 4 by welding. The height from the vertex to the bottom edge of the guiding cover 5 is less than or equal to 3 cm, and the planar diameter of the horizontal projection of the guiding cover 5 is less than or equal to three times that of the trailer ball cover 4. This makes the designed guiding cover reduce the radius size in the xy - plane direction on the basis of the original size, ensuring that the trailer ball cover can be smoothly coupled and docked with the towing ball head. An opening 8 communicating with the lower part of the trailer ball cover 4 is opened above the guiding cover 5. The opening 8 extends backward and is larger than the diameter of the trailer ball cover 4, so that there is enough redundant space for the towing ball head of the used tractor to slide into the trailer ball cover 4. A load - bearing rib plate 3 is connected by welding between the lower side of the trailer ball cover connecting bracket 1 and the upper side of the guiding cover 5. The load - bearing rib plate 3 is coplanar with the side walls on both sides of the trailer ball cover connecting bracket 1. The distance between the two load - bearing rib plates 3 is equal to the width of the opening 8, making the opening 8 and the trailer ball cover 4 smooth and unobstructed. Thus, it solves the problem that the traditional trailer ball cover cannot provide the guiding conditions required for automatic docking. And the present utility model provides a guiding mechanism during automatic docking, enabling the docking to proceed smoothly. On this basis, through the optimization of the guiding cover size, interference during docking with the rear of the tractor can be avoided, and at the same time, a part of the structure is retained, so that the ball cover still has a guiding function during automatic docking.
[0016] Specifically, there is also a strengthening structure between the trailer ball cover 4 and the guiding cover 5. The strengthening structure includes a cylindrical strengthening rib shell 6 and a strengthening flange 7. The cylindrical strengthening rib shell 6 is connected by welding between the trailer ball cover 4 and the guiding cover 5. The strengthening flange 7 is connected by welding to the outside of the connection between the cylindrical strengthening rib shell 6 and the guiding cover 5. There is also an edge 2 on the lower side of the trailer ball cover connecting bracket 1, and the edge 2 is welded to the end of the strengthening flange 7.
[0017] Particularly, the guiding cover 5 is one or more of aluminum - lithium alloy, titanium - aluminum alloy, magnesium alloy, beryllium alloy and titanium alloy. In this embodiment, aluminum - lithium alloy is adopted. Thus, through size optimization, shape optimization, combined with the application of lightweight materials and advanced processes, the weight of the guiding trailer ball cover of the present utility model is reduced by about 30%, reducing vehicle energy consumption.
[0018] During use, move the trailer equipped with the guiding trailer ball cover of the present utility model to the rear of the tractor to be towed. Align the guiding cover 5 of the guiding trailer ball cover with the towing ball head of the tractor. The towing ball head slides along the smooth surface of the guiding cover 5 into the opening 8 until it slides into the trailer ball cover 4. At this time, due to the optimal optimization of the height and diameter of the guiding cover 5, it can be ensured that the towing ball head is completely embedded in the trailer ball cover 4, and the guiding cover 5 does not touch the bumper at the rear of the tractor, so that docking interference will not occur.
[0019] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model shall be subject to the scope defined by the claims. Several improvements and refinements made by those skilled in the art without departing from the spirit and scope of the present utility model shall also be regarded as within the protection scope of the present utility model.
Claims
1. A guided trailer ball cover for a mid-axle trailer, characterized in that: The invention comprises a trailer ball cover (4), the rear side of the trailer ball cover (4) is connected to a trailer ball cover connecting bracket (1), the trailer ball cover connecting bracket (1) and the trailer ball cover (4) are integrally cast, a guide cover (5) is connected to the bottom of the trailer ball cover (4) by welding, and a guide port (8) is opened on the top of the guide cover (5) and is connected to the bottom of the trailer ball cover (4).
2. The guide type trailer ball cover for a center axle trailer according to claim 1, characterized in that: The guide opening (8) extends backwards to a greater extent than the diameter of the trailer ball cover (4), so that the towing ball head of the towing vehicle used has sufficient redundant space to slide into the trailer ball cover (4).
3. The guide type trailer ball cover for a center axle trailer according to claim 1, characterized in that: A load-bearing rib (3) is connected between the lower side of the trailer ball cover connecting bracket (1) and the upper side of the guide cover (5) by welding. The load-bearing rib (3) is coplanar with the side walls on both sides of the trailer ball cover connecting bracket (1). The distance between the two load-bearing ribs (3) is equal to the width of the guide opening (8), so that the guide opening (8) and the trailer ball cover (4) are smooth and unobstructed.
4. The guide type trailer ball cover for a center axle trailer according to claim 1, characterized in that: The height between the top and bottom edge of the guide cover (5) is less than or equal to 3 cm.
5. The guided trailer ball cover for a center axle trailer according to claim 1, characterized in that: The plane diameter of the horizontal projection of the guide cover (5) is less than or equal to three times that of the trailer ball cover (4).
6. The guided trailer ball cover for a center axle trailer according to claim 1, characterized in that: A reinforcement structure is also provided between the trailer ball cover (4) and the guide cover (5), and the reinforcement structure includes a columnar reinforcement rib shell (6) and a reinforcement flange (7). The columnar reinforcement rib shell (6) is connected to the trailer ball cover (4) and the guide cover (5) by welding, and the reinforcement flange (7) is connected to the outer side of the connection between the columnar reinforcement rib shell (6) and the guide cover (5) by welding. The lower side of the trailer ball cover connection bracket (1) also has an edge (2), and the edge (2) is welded to the end of the reinforcement flange (7).
7. The guide type trailer ball cover for a center axle trailer according to claim 1, characterized in that: The guide cover (5) is one or more of an aluminum-lithium alloy, a titanium-aluminum alloy, a magnesium alloy, a beryllium alloy and a titanium alloy.