Reinforcement and limiting structure and method for detachable suspension of trailer

Abstract

The present invention provides a reinforcement and limiting structure for a detachable suspension of a trailer, comprising a lower wing plate, a widened plate, a connecting hole provided on the widened plate, a suspension connecting plate, a front limiting hole, a rear limiting hole, a front limiting plate and a rear limiting plate; the suspension connecting plate is connected to the widened plate by bolts; the front limiting hole and the rear limiting hole are respectively arranged at the front and rear parts of the suspension connecting plate; the front limiting plate is installed corresponding to the front limiting hole, and the rear limiting plate is installed corresponding to the rear limiting hole; the aperture of the front limiting hole is larger than the longest side dimension of the front limiting plate, so that the front limiting plate can move in the front limiting hole; the aperture of the rear limiting hole is larger than the longest side dimension of the rear limiting plate, so that the rear limiting plate can move in the rear limiting hole; the front end of the front limiting plate abuts against the inner edge of the front limiting hole, and the rear end of the rear limiting plate abuts against the inner edge of the rear limiting hole. This solution not only solves the problem of flexible assembly and disassembly of the suspension, but also solves the problem that the suspension connection structure is easily broken due to long-term influence of shear force.

Description

Technical Field

[0001] The invention relates to the field of semi-trailers, and in particular to a reinforcement and limiting structure and method for a detachable suspension of a trailer. Background Art

[0002] After the semi-trailer is manufactured in the production factory, in order to facilitate transportation and improve transportation efficiency, the easy-to-assemble components are usually kept in a disassembled state. The disassembled components are then loaded into standard containers and transported to the destination by various means of transportation before being assembled.

[0003] The main connection methods between the suspension and the frame are bolt connection or riveting, and bolt connection is more commonly used.

[0004] The suspension system needs to bear the load of the vehicle, so the connection method between the suspension and the frame is mostly achieved by setting mounting holes on the lower wing plate of the frame longitudinal beam and the suspension bracket connecting plate to achieve the disassembly and assembly of the suspension. There are also cases where the suspension is achieved by setting mounting holes on the widened plate of the lower wing plate of the frame longitudinal beam and the suspension bracket connecting plate.

[0005] When the manufacturer produces the trailer frame, it is necessary to assemble and position the detachable suspension parts in advance so that the trailer components can be quickly assembled after they are delivered to the destination. The current situation is that when assembling the suspension parts, the installation is troublesome due to the inconvenient positioning of the frame and suspension and the size errors of the bolts and mounting holes. In addition, during vehicle operation, the braking and starting of the trailer cause the bolts on the lower wing plate of the frame longitudinal beam and the suspension connecting plate to be subjected to shear force. Long-term repeated action can easily cause the bolts to loosen or even break, posing a safety hazard.

[0006] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention

[0007] The purpose of the present invention is to address the deficiencies in the prior art and to provide a reinforcement and limiting structure and method for a detachable suspension of a trailer, which not only solves the problem of flexible suspension disassembly and assembly, but also solves the problem of easy breakage of the suspension connection structure due to long-term shear force.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a reinforcement and limiting structure of a detachable suspension of a trailer, comprising a lower wing plate, a widening plate and a connecting hole provided on the widening plate, the reinforcement and limiting structure of the detachable suspension of the trailer also comprises a suspension connecting plate, a front limiting hole, a rear limiting hole, a front limiting plate and a rear limiting plate;

[0009] The suspension connecting plate is provided with a lower wing plate connecting hole, and the lower wing plate connecting hole corresponds to the connecting hole on the widened plate and is connected by bolts;

[0010] The front limit hole is arranged at the front part of the suspension connecting plate, and the rear limit hole is arranged at the rear part of the suspension connecting plate;

[0011] The front limit plate is installed corresponding to the front limit hole, the bottom end of the front limit plate is welded and fixed to the lower wing plate, the rear limit plate is installed corresponding to the rear limit hole, and the bottom end of the rear limit plate is welded and fixed to the lower wing plate;

[0012] The diameter of the front limiting hole is larger than the longest side of the front limiting plate, so that the front limiting plate can move in the front limiting hole;

[0013] The diameter of the rear limiting hole is larger than the longest side of the rear limiting plate, so that the rear limiting plate can move in the rear limiting hole;

[0014] When the suspension connecting plate is connected to the widening plate, the front end of the front limiting plate abuts against the inner edge of the front limiting hole, and the rear end of the rear limiting plate abuts against the inner edge of the rear limiting hole.

[0015] Based on the above, the front limit plate is welded and fixed to the lower wing plate through the rear bottom seam, so that the weld remains on the rear side of the front limit plate, and the front side of the front limit plate is in close contact with the inner edge of the front limit hole.

[0016] Based on the above, the rear limit plate is welded and fixed to the lower wing plate through the front bottom seam, so that the weld remains on the front side of the rear limit plate, and the rear side of the rear limit plate is in close contact with the inner edge of the rear limit hole.

[0017] Based on the above, the front limit plate and the rear limit plate are both circular plates, the front limit hole and the rear limit hole are both circular holes, the center holes of the front limit plate and the rear limit plate are welding process holes, the front limit plate and the rear limit plate are welded and fixed to the lower wing plate through the inside of the welding process holes, and the diameters of the front limit plate and the rear limit plate are smaller than the apertures of the front limit hole and the rear limit hole.

[0018] Based on the above, the front limit plate and the rear limit plate are both polygonal plates with a welding process hole at the center, the front limit hole and the rear limit hole are both matching circular holes or polygonal holes, and the front limit plate and the rear limit plate are welded and fixed to the lower wing plate through the inside of the welding process hole.

[0019] Based on the above, the front limit plate and the rear limit plate are both arc-shaped plates, the front limit hole and the rear limit hole are both round holes, the convex arc surface of the front limit plate is located on the front side, and the convex arc surface of the rear limit plate is located on the rear side.

[0020] Based on the above, the thickness of the front limit plate and the rear limit plate are both greater than the thickness of the suspension connecting plate.

[0021] A method for reinforcing and limiting a detachable suspension of a trailer comprises the following steps: adding a widening plate to a lower wing plate, setting a connecting hole on the widening plate, and welding a front limiting plate and a rear limiting plate to the lower wing plate respectively; setting lower wing plate connecting holes on the suspension connecting plate corresponding to the connecting holes, and fixing the suspension connecting plate, the lower wing plate and the widening plate together with bolts; setting a front limiting hole and a rear limiting hole on the front and rear sides of the suspension connecting plate corresponding to the front limiting plate and the rear limiting plate respectively, the front side of the front limiting plate abuts against the inner edge of the front limiting hole, and the rear side of the rear limiting plate abuts against the inner edge of the rear limiting plate.

[0022] Based on the above, the front limit plate and the rear limit plate are both circular plates, the front limit hole and the rear limit hole are both circular holes, the center holes of the front limit plate and the rear limit plate are welding process holes, the front limit plate and the rear limit plate are welded and fixed to the lower wing plate through the inside of the welding process holes, and the diameters of the front limit plate and the rear limit plate are smaller than the apertures of the front limit hole and the rear limit hole.

[0023] Compared with the prior art, the present invention has outstanding substantial features and significant progress. Specifically, on the basis of widening the lower wing plate, the present invention designs a suspension connecting plate, which is fixed to the widened plate by bolts. At the same time, a front limit hole and a rear limit hole are respectively arranged at the front and rear of the suspension connecting plate, and a front limit plate and a rear limit plate are welded at corresponding positions of the lower wing plate accordingly. The front limit plate is inserted into the front limit hole, and the rear limit plate is inserted into the rear limit hole, and a certain amount of movement is reserved for both. The front and rear limit plates limit the tendency of the suspension part to move forward or backward, reduce the shear force on the bolts, and avoid loosening and damage of the bolts. This structure not only solves the problem of flexible disassembly and assembly of the suspension bracket, but also overcomes the problem that the bolt connection is easily affected by the shear force during long-term movement, causing the bolts to loosen and be damaged.

[0024] At the same time, it also has the advantages of quick positioning and easy installation during the installation process. It can also reduce the number of bolts used, making assembly more convenient, saving labor hours, and reducing production costs.

[0025] Furthermore, in order to ensure that the connection between the limit plate and the limit hole is tight without any margin, the weld is designed on one side of the non-contact surface, such as in the welding process hole at the center of the circular limit plate, so that it can not only resist the forward and backward movement tendency caused by the impact, but also solve the problem of close contact between the limit plate and the limit hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the main structure of the reinforcement and limiting structure of the detachable suspension of the trailer in the present invention.

[0027] Figure 2It is one of the side structural schematic diagrams of the reinforcement and limiting structure of the detachable suspension of the trailer in the present invention.

[0028] Figure 3 This is the second side structural schematic diagram of the reinforcement and limiting structure of the detachable suspension of the trailer in the present invention.

[0029] Figure 4 It is a structural schematic diagram of the front limiting hole of the reinforcement and limiting structure of the detachable suspension of the trailer in the present invention.

[0030] Figure 5 It is a schematic diagram of the main structure of the reinforcement and limiting structure of the detachable suspension of the trailer in the present invention at the rear limiting hole.

[0031] In the figure: 1. Lower wing plate; 2. Widening plate; 3. Suspension connecting plate; 4. Bolts; 5. Front limit hole; 6. Rear limit hole; 7. Front limit plate; 8. Rear limit plate; 9. Welding process hole. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described in detail below through specific implementation methods.

[0033] Example 1

[0034] like Figure 1-Figure 5 As shown, a reinforcement and limiting structure of a detachable suspension of a trailer includes a lower wing plate 1, a widened plate 2, a connecting hole provided on the widened plate, a suspension connecting plate 3, a front limiting hole 5, a rear limiting hole 6, a circular front limiting plate 7 and a circular rear limiting plate 8.

[0035] The suspension connecting plate is provided with a lower wing plate connecting hole, which corresponds to the connecting hole on the widened plate and is connected by a bolt 4.

[0036] The front limiting hole 5 is arranged at the front part of the suspension connecting plate 3 , and the rear limiting hole 6 is arranged at the rear part of the suspension connecting plate 3 .

[0037] The front limit plate 7 is installed corresponding to the front limit hole 5, and the bottom end of the front limit plate 7 is welded and fixed to the lower wing plate 1. The rear limit plate 8 is installed corresponding to the rear limit hole 6, and the bottom end of the rear limit plate 8 is welded and fixed to the lower wing plate 1.

[0038] The diameter of the front limiting hole 5 is larger than the diameter of the front limiting plate 7 , so that the front limiting plate 7 can move in the front limiting hole 5 .

[0039] The diameter of the rear limiting hole 6 is larger than the diameter of the rear limiting plate 8 so that the rear limiting plate 8 can move in the rear limiting hole 6 .

[0040] When the suspension connecting plate 3 is connected to the widening plate 2 , the front end of the front limiting plate 7 abuts against the inner edge of the front limiting hole 5 , and the rear end of the rear limiting plate 8 abuts against the inner edge of the rear limiting hole 6 .

[0041] During transportation, the bolts 4 on the suspension connecting plate 3 are removed to separate it from the lower wing plate 1 and the widened plate 2 so as to disperse the transportation and reduce the transportation pressure. During the assembly, installation and use, the front and rear limit plates can play a role in quick positioning. At the same time, due to the existence of the front and rear limit plates, the tendency of the suspension connecting plate to move forward and backward is effectively restricted, so that the front and rear limit plates are subjected to force first, which effectively reduces the shear force borne by the bolts, prolongs the service life of the bolts, protects the overall safety of the suspension, and can also reduce the number of bolts installed to save costs.

[0042] Furthermore, in order to enable the front limit plate and the rear limit plate to play their advantages more advantageously, the front limit hole and the rear limit hole are designed to be circular holes, and the center holes of the front limit plate and the rear limit plate are welding process holes 9. The front limit plate and the rear limit plate are welded and fixed to the lower wing plate through the welding process holes. At this time, the weld is inside the welding process hole, and there is no weld on the outer edge of the front limit plate and the rear limit plate, so they can be in close contact with the front limit hole and the rear limit hole, and have higher stability.

[0043] Furthermore, in order to improve the strength of the limit plate, the thickness of the front limit plate and the rear limit plate is designed to be greater than the thickness of the suspension connecting plate, so that the structural strength can effectively resist the tendency of forward and backward movement.

[0044] Example 2

[0045] The difference between this embodiment and Embodiment 1 is that: when the front and rear limit plates are of other shapes, the front limit plate is welded and fixed to the lower wing plate through the rear bottom seam, so that the weld remains on the rear side of the front limit plate, and the front side of the front limit plate is in close contact with the inner edge of the front limit hole; the rear limit plate is welded and fixed to the lower wing plate through the front bottom seam, so that the weld remains on the front side of the rear limit plate, and the rear side of the rear limit plate is in close contact with the inner edge of the rear limit hole.

[0046] Example 3

[0047] The difference between this embodiment and Embodiment 1 is that the front limit plate and the rear limit plate are both polygonal plates with a welding process hole at the center, the front limit hole and the rear limit hole are both adapted circular holes or polygonal holes, and the front limit plate and the rear limit plate are welded and fixed to the lower wing plate through the inside of the welding process hole.

[0048] Example 4

[0049] The front limit plate and the rear limit plate are both arc-shaped plates, the front limit hole and the rear limit hole are both round holes, the convex arc surface of the front limit plate is located at the front side, and the convex arc surface of the rear limit plate is located at the rear side.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A reinforcement and limiting structure for a detachable suspension of a trailer, comprising a lower wing plate, a widening plate and a connecting hole provided on the widening plate, characterized in that: The reinforcement and limiting structure of the detachable suspension of the trailer also includes a suspension connecting plate, a front limiting hole, a rear limiting hole, a front limiting plate and a rear limiting plate; The suspension connecting plate is provided with a lower wing plate connecting hole, and the lower wing plate connecting hole corresponds to the connecting hole on the widened plate and is connected by bolts; The front limit hole is arranged at the front part of the suspension connecting plate, and the rear limit hole is arranged at the rear part of the suspension connecting plate; The front limit plate is installed corresponding to the front limit hole, the bottom end of the front limit plate is welded and fixed to the lower wing plate, the rear limit plate is installed corresponding to the rear limit hole, and the bottom end of the rear limit plate is welded and fixed to the lower wing plate; The diameter of the front limiting hole is larger than the longest side of the front limiting plate, so that the front limiting plate can move in the front limiting hole; The diameter of the rear limiting hole is larger than the longest side of the rear limiting plate, so that the rear limiting plate can move in the rear limiting hole; When the suspension connecting plate is connected to the widening plate, the front end of the front limiting plate abuts against the inner edge of the front limiting hole, and the rear end of the rear limiting plate abuts against the inner edge of the rear limiting hole; The thickness of the front limit plate and the rear limit plate are both greater than the thickness of the suspension connecting plate; The front and rear limit plates restrict the tendency of the suspension part to move forward or backward, reduce the shear force on the bolts, and avoid loosening and damage of the bolts.

2. The reinforcement and limiting structure of the detachable suspension of the trailer according to claim 1 is characterized in that: The front limit plate is welded and fixed to the lower wing plate through the rear bottom seam, so that the weld remains on the rear side of the front limit plate, and the front side of the front limit plate is in close contact with the inner edge of the front limit hole.

3. The reinforcement and limiting structure of the detachable suspension of the trailer according to claim 2 is characterized in that: The rear limit plate is welded and fixed to the lower wing plate through the front bottom seam, so that the weld remains on the front side of the rear limit plate, and the rear side of the rear limit plate is in close contact with the inner edge of the rear limit hole.

4. The reinforcement and limiting structure of the detachable suspension of the trailer according to claim 1 is characterized in that: The front limit plate and the rear limit plate are both circular plates, the front limit hole and the rear limit hole are both circular holes, the center holes of the front limit plate and the rear limit plate are welding process holes, the front limit plate and the rear limit plate are welded and fixed to the lower wing plate through the inside of the welding process holes, and the diameters of the front limit plate and the rear limit plate are smaller than the apertures of the front limit hole and the rear limit hole.

5. The reinforcement and limiting structure of the detachable suspension of the trailer according to claim 1 is characterized in that: The front limit plate and the rear limit plate are both polygonal plates with a welding process hole at the center, the front limit hole and the rear limit hole are both adapted circular holes or polygonal holes, and the front limit plate and the rear limit plate are welded and fixed to the lower wing plate through the inside of the welding process hole.

6. The reinforcement and limiting structure of the detachable suspension of the trailer according to claim 3 is characterized in that: The front limit plate and the rear limit plate are both arc-shaped plates, the front limit hole and the rear limit hole are both round holes, the convex arc surface of the front limit plate is located at the front side, and the convex arc surface of the rear limit plate is located at the rear side.

7. A method for reinforcing and limiting the detachable suspension of a trailer, characterized in that: A widening plate is added to the lower wing plate, a connecting hole is set on the widening plate, and a front limit plate and a rear limit plate are welded on the lower wing plate respectively; a lower wing plate connecting hole is set on the suspension connecting plate corresponding to the connecting hole, and the suspension connecting plate, the lower wing plate and the widening plate are fixed together with bolts; a front limit hole and a rear limit hole are set on the front and rear sides of the suspension connecting plate corresponding to the front limit plate and the rear limit plate respectively, the front side of the front limit plate abuts against the inner edge of the front limit hole, and the rear side of the rear limit plate abuts against the inner edge of the rear limit plate; the thickness of the front limit plate and the rear limit plate are both greater than the thickness of the suspension connecting plate; the aperture of the front limit hole is greater than the longest side dimension of the front limit plate, so that the front limit plate can move in the front limit hole; The diameter of the rear limiting hole is larger than the longest side of the rear limiting plate, so that the rear limiting plate can move in the rear limiting hole; The front and rear limit plates restrict the tendency of the suspension part to move forward or backward, reduce the shear force on the bolts, and avoid loosening and damage of the bolts.

8. The method for reinforcing and limiting the detachable suspension of a trailer according to claim 7, characterized in that: The front limit plate and the rear limit plate are both circular plates, the front limit hole and the rear limit hole are both circular holes, the center holes of the front limit plate and the rear limit plate are welding process holes, the front limit plate and the rear limit plate are welded and fixed to the lower wing plate through the inside of the welding process holes, and the diameters of the front limit plate and the rear limit plate are smaller than the apertures of the front limit hole and the rear limit hole.

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