Integrally-assembled auxiliary frame structure

Abstract

The utility model relates to the technical field of motorcycles, in particular to an integrated assembly auxiliary frame structure which comprises an auxiliary seat base and two side frame assemblies, the two side frame assemblies are symmetrically distributed in the horizontal direction, and the side surface, close to the other side frame assembly, of each side frame assembly is connected to the side wall of the auxiliary seat base. The auxiliary frame is formed by combining the auxiliary seat base and the two side frame assemblies, and during transportation, the side frame assemblies and the auxiliary seat base can be separated, so that the space utilization rate of the auxiliary frame is increased, and the possibility that the auxiliary frame is twisted due to thermal stress generated in the welding process of the auxiliary frame is reduced.

Description

Technical Field

[0001] This application relates to the technical field of motorcycles, and particularly to an integrated assembly sub-frame structure. Background Art

[0002] The frame of a motorcycle includes a main frame and a sub-frame. The main frame is used to connect to the engine and support the suspension structure. The sub-frame refers to the structure that extends from the main frame and bears the driver's and passenger's seats and some accessories (such as a battery, an ignition computer, etc.).

[0003] In the existing frame, the sub-frame is welded and formed by a welding tooling. During transportation, the sub-frame needs to occupy a large space, resulting in low space utilization. Moreover, due to the existence of welding thermal stress, it is difficult to control the frame size, and there are problems such as the distortion of the frame tail and size deviation. And because the frame has high strength, it is impossible to correct the size deviation caused by thermal stress, which affects the overall vehicle assembly effect. Summary of the Utility Model

[0004] In order to achieve the detachable connection of the sub-frame, improve the space utilization rate during the transportation of the sub-frame, and facilitate the assembly of the sub-frame, this application provides an integrated assembly sub-frame structure.

[0005] An integrated assembly sub-frame structure provided by this application adopts the following technical solutions:

[0006] An integrated assembly sub-frame structure includes a sub-seat base and side frame components. There are two side frame components, and the two side frame components are symmetrically distributed in the horizontal direction. One side surface of the side frame component close to the other side frame component is connected to the side wall of the sub-seat base.

[0007] By adopting the above technical solutions, the sub-frame is composed of a sub-seat base and two side frame components. During transportation, the side frame components and the sub-seat base can be separated to improve the space utilization rate of the sub-frame and reduce the possibility of the sub-frame being distorted due to the thermal stress generated during the welding of the sub-frame.

[0008] Preferably, a weight reduction groove is provided on the side of the side frame component close to the sub-seat base.

[0009] By adopting the above technical solutions, the side frame component is provided with a weight reduction groove, which reduces the weight of the side frame component on the premise of ensuring the structural strength of the side frame component, helps to improve the fuel economy of the motorcycle, and meets the environmental protection requirements.

[0010] Preferably, the subframe base is provided with a receiving cavity for storing articles. Mounting holes are provided on the wall of the receiving cavity. The mounting holes are divided into two groups, and the two groups of mounting holes respectively correspond to two side frame components. The mounting holes are for bolts to pass through and be threadedly connected to the side frame components. The mounting holes in the same group are spaced along the length direction of the side frame components.

[0011] By adopting the above technical solution, the subframe base is provided with a receiving cavity to provide storage space for the motorcycle and improve the convenience of the motorcycle. Mounting holes are provided on the wall of the receiving cavity for bolts to pass through and be threadedly connected to the side frame components, facilitating the installation of the subframe base and the side frame components and improving the work efficiency of subframe assembly.

[0012] Preferably, a number of abutting columns are connected to the bottom of the weight reduction groove. The number of the abutting columns is the same as and corresponds one by one to the number of the mounting holes. One end of the abutting column away from the bottom of the weight reduction groove abuts against the outer wall of the subframe base. A fixing hole is provided at one end of the abutting column close to the subframe base. The mounting hole is for a bolt to pass through and be threadedly connected into the fixing hole.

[0013] By adopting the above technical solution, abutting columns are connected to the bottom of the weight reduction groove. The abutting columns abut against the outer periphery of the subframe base. The number of the abutting columns is the same as and corresponds one by one to the number of the mounting holes, which helps to improve the installation accuracy of the subframe base and the side frame components, reduce the possibility of relative rotation between the subframe base and the side frame components after assembly, and improve the connection stability between the subframe base and the side frame components.

[0014] Preferably, a first reinforcing rib is connected to the outer periphery of the abutting column. The first reinforcing rib extends from the outer wall of the abutting column to the bottom of the weight reduction groove.

[0015] By adopting the above technical solution, the first reinforcing rib extends from the outer wall of the abutting column to the bottom of the weight reduction groove, improving the structural strength at the connection between the abutting column and the bottom of the weight reduction groove, reducing the possibility of fracture at the connection between the abutting column and the bottom of the weight reduction groove, increasing the service life of the side frame components, and thus increasing the service life of the subframe.

[0016] Preferably, a number of extension plates are connected to the upper wall of the weight reduction groove. The extension plates extend in the horizontal direction. The a number of extension plates are spaced along the length direction of the upper wall of the weight reduction groove.

[0017] By adopting the above technical solution, extension plates are connected to the upper wall of the weight reduction groove, which helps to improve the structural strength at the connection between the extension plates and the wall of the weight reduction groove. Moreover, the extension plates can be used for connecting other components to the subframe, improving the connection flexibility of the side frame components.

[0018] Preferably, a second reinforcing rib is connected to the lower surface of the extension plate. The second reinforcing rib extends from the lower surface of the extension plate to the bottom of the weight reduction groove.

[0019] By adopting the above technical solution, the extension plate is connected with a second reinforcing rib, which helps to improve the structural strength at the connection between the extension plate and the wall of the weight reduction groove, reduce the possibility of fracture at the connection between the extension plate and the bottom of the weight reduction groove, improve the connection stability of the side frame, increase the service life of the side frame assembly, and thus increase the service life of the subframe.

[0020] Preferably, a plurality of connecting seats are connected to the lower wall of the weight reduction groove, and the plurality of connecting seats are spaced apart along the length direction of the lower wall of the weight reduction groove. A connecting hole is provided on the side of the connecting seat away from the lower wall of the weight reduction groove.

[0021] By adopting the above technical solution, the connecting seats are provided, and the connecting seats are provided with connecting holes, which improves the structural strength at the connecting holes and the connection stability between the side frame assembly and external components.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The subframe is composed of a sub-seat base and two side frame assemblies. During transportation, the side frame assembly and the sub-seat base can be separated to improve the space utilization rate of the subframe and reduce the possibility of the subframe being distorted due to thermal stress generated during the welding process of the subframe.

[0024] 2. The sub-seat base is provided with a receiving cavity to provide a storage space for the motorcycle and improve the convenience of the motorcycle. Mounting holes are provided on the wall of the receiving groove, and the mounting holes are used for bolts to pass through and be threadedly connected with the side frame assembly, which facilitates the installation of the sub-seat base and the side frame assembly and improves the working efficiency of the subframe assembly.

[0025] 3. The bottom of the weight reduction groove is connected with abutting columns, and the abutting columns abut against the outer periphery of the sub-seat base. The number of abutting columns is the same as and corresponds one-to-one to the number of mounting holes, which helps to improve the installation accuracy of the sub-seat base and the side frame assembly, reduce the possibility of relative rotation between the sub-seat base and the side frame assembly after the sub-seat base and the side frame assembly are assembled, and improve the connection stability between the sub-seat base and the side frame assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural view of an integrally assembled subframe structure.

[0027] Figure 2 is a schematic structural view of the sub-seat base.

[0028] Figure 3 is a schematic structural view of the side frame assembly.

[0029] Figure 4 is a partial cross-sectional view of the integrally assembled subframe structure.

[0030] Figure 5 It is a schematic structural view of another perspective of the side frame assembly.

[0031] Explanation of the reference numerals:

[0032] 1. Sub-seat base; 11. Accommodating cavity; 12. Mounting hole; 13. Mounting seat; 14. Groove; 15. Abutting seat; 151. First stepped surface; 16. Boss; 161. Second stepped surface;

[0033] 2. Side frame assembly; 21. Weight reduction groove; 22. Abutting column; 221. Fixing hole; 23. First reinforcing rib; 24. Extension plate; 25. Second reinforcing rib; 26. Connecting seat; 261. Connecting hole; 27. Fixing part. Detailed implementation manners

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] Referring to Figure 1 , an integrated assembled sub-frame structure disclosed in an embodiment of the present application includes a sub-seat base 1. An accommodating cavity 11 is provided at the upper end of the sub-seat base 1, and the accommodating cavity 11 is used for storing items. A mounting seat 13 is connected to the upper end of the sub-seat base 1, and the mounting seat 13 is located at one end of the sub-seat base 1 along the length direction of the sub-seat base 1. A groove 14 is provided at one end of the sub-seat base 1 away from the mounting seat 13, and the groove 14 is used for the front seat cushion to be inserted.

[0036] An integrated assembled sub-frame structure further includes a side frame assembly 2. There are two side frame assemblies 2, and the two side frame assemblies 2 are symmetrically distributed along the width direction of the sub-seat base 1. A fixing part 27 is fixedly connected to one end of the side frame assembly 2 along the length direction of the side frame assembly 2, and the fixing part 27 is used for connecting with the main frame. In this embodiment, one side frame assembly 2 is provided with two fixing parts 27, and the two fixing parts 27 are spaced apart vertically.

[0037] Referring to Figure 2 , a plurality of abutting seats 15 are respectively fixedly connected to the outer walls on both sides of the sub-seat base 1 along the width direction of the sub-seat base 1, and the plurality of abutting seats 15 on the same side are spaced apart along the length direction of the sub-seat base 1. In this embodiment, there are two abutting seats 15 on the same side. A boss 16 is fixedly connected to the cavity wall of the accommodating cavity 11, the number of bosses 16 is the same as the number of abutting seats 15 and they correspond one by one, and the lower end of the boss 16 is fixedly connected to the bottom of the accommodating cavity 11.

[0038] Referring to Figure 1 and Figure 3 , a weight reduction groove 21 is provided on one side of the side frame assembly 2 close to the other side frame assembly 2, and an abutting column 22 is fixedly connected to the bottom of the weight reduction groove 21, and the abutting column 22 is located on the side of the side frame assembly 2 away from the fixing part 27.

[0039] Referring toFigure 3 and Figure 4 , the number of abutting columns 22 is the same as that of abutting seats 15 and they correspond to each other one by one. The axis of the abutting column 22 is parallel to the width direction of the sub-base 1. A first stepped surface 151 is provided on the side of the abutting seat 15 away from the accommodating cavity 11. The first stepped surface 151 is located at the lower end of the abutting seat 15. One end of the abutting column 22 away from the bottom of the weight-reducing groove 21 is in contact with the first stepped surface 151. A second stepped surface 161 is provided on the side of the convex platform 16 away from the abutting seat 15. The second stepped surface 161 is located at the upper end of the convex platform 16. An installation hole 12 is provided at the second stepped surface 161. The installation hole 12 sequentially penetrates through the convex platform 16, the sub-base 1 and the abutting seat 15. The other end of the installation hole 12 is located at the first stepped surface 151. A fixing hole 221 is coaxially provided in the abutting column 22. The installation hole 12 is used for a bolt to pass through and be threadedly connected into the fixing hole 221.

[0040] Referring to Figure 3 , a first reinforcing rib 23 is fixedly connected to the outside of the abutting column 22. The first reinforcing rib 23 extends from the outer wall of the abutting column 22 to the bottom of the weight-reducing groove 21. In this embodiment, three first reinforcing ribs 23 are provided. The three first reinforcing ribs 23 are spaced apart around the axis of the abutting column 22 close to the fixing portion 27. One end of a first reinforcing rib 23 away from the abutting column 22 extends to the outer wall of another abutting column 22. The other two ends of the first reinforcing ribs 23 away from the abutting column 22 extend to the wall of the weight-reducing groove 21.

[0041] Referring to Figure 1 and Figure 5 , an extension plate 24 is fixedly connected to the upper wall of the weight-reducing groove 21. The extension plate 24 extends along the width direction of the sub-base 1. A plurality of extension plates 24 are provided. The extension plates 24 are located between the abutting columns 22 and the fixing portion 27. The plurality of extension plates 24 are spaced apart along the length direction of the upper wall of the weight-reducing groove 21. In this embodiment, two extension plates 24 are provided. A second reinforcing rib 25 is fixedly connected to the lower surface of the extension plate 24. The second reinforcing rib 25 extends from the lower surface of the extension plate 24 to the bottom of the weight-reducing groove 21. One extension plate 24 corresponds to two second reinforcing ribs 25. The two second reinforcing ribs 25 are spaced apart along the width direction of the extension plate 24.

[0042] A connecting seat 26 is fixedly connected to the lower wall of the weight-reducing groove 21. One end of the connecting seat 26 away from the other side frame assembly 2 is fixedly connected to the bottom of the weight-reducing groove 21. A plurality of connecting seats 26 are provided. The connecting seats 26 are located between the abutting columns 22 and the fixing portion 27. The plurality of connecting seats 26 are spaced apart along the length direction of the lower wall of the weight-reducing groove 21. In this embodiment, five connecting seats 26 are provided. A connecting hole 261 is provided on the side of the connecting seat 26 away from the bottom of the weight-reducing groove 21.

[0043] The implementation principle of an integrated assembled subframe structure in an embodiment of the present application is as follows: When installing the subframe, first abut the end of the abutting column 22 against the first stepped surface 151, pass the bolt through the mounting hole 12 and then thread it into the fixing hole 221 to realize the relative fixation of the sub-seat base 1 and the side frame assembly 2, and then connect the subframe to the main frame to improve the installation efficiency.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An integrated subframe assembly structure, characterized in that: The vehicle comprises a sub-seat base (1) and a side frame assembly (2); two side frame assemblies (2) are provided; the two side frame assemblies (2) are symmetrically distributed in the horizontal direction; and a side surface of the side frame assembly (2) close to the other side frame assembly (2) is connected to the side wall of the sub-seat base (1).

2. The integrated subframe structure according to claim 1, characterized in that: A weight-reducing groove (21) is provided on one side of the side frame assembly (2) close to the auxiliary seat base (1).

3. The integrated subframe structure according to claim 2, characterized in that: The sub-frame base is provided with a receiving cavity (11); the receiving cavity (11) is used for storing articles; the receiving cavity (11) is provided with mounting holes (12) on its wall; the mounting holes (12) are divided into two groups; the two groups of mounting holes (12) correspond to two side frame assemblies (2) respectively; the mounting holes (12) are used for bolts to pass through and then be threadedly connected to the side frame assemblies (2); the mounting holes (12) in the same group are spaced apart along the length direction of the side frame assemblies (2).

4. The integrated subframe structure according to claim 3 is characterized in that: The bottom of the weight-reducing groove (21) is connected to a plurality of abutment columns (22); the number of the abutment columns (22) is the same as the number of the mounting holes (12) and corresponds to each other; one end of the abutment column (22) away from the bottom of the weight-reducing groove (21) abuts against the outer wall of the auxiliary seat base (1); one end of the abutment column (22) close to the auxiliary seat base (1) is provided with a fixing hole (221); the mounting hole (12) is used for a bolt to pass through and then be threadedly connected to the fixing hole (221).

5. The integrated subframe structure according to claim 4, characterized in that: The outer periphery of the abutment column (22) is connected to a first reinforcing rib (23); the first reinforcing rib (23) extends from the outer wall of the abutment column (22) to the bottom of the weight-reducing groove (21).

6. The integrated subframe structure according to claim 2, characterized in that: A plurality of extension plates (24) are connected to the upper groove wall of the weight-reducing groove (21); the extension plates (24) extend in a horizontal direction; and the plurality of extension plates (24) are distributed at intervals along the length direction of the upper groove wall of the weight-reducing groove (21).

7. The integrated subframe structure according to claim 6, characterized in that: The lower surface of the extension plate (24) is connected to a second reinforcing rib (25); the second reinforcing rib (25) extends from the lower surface of the extension plate (24) to the bottom of the weight-reducing groove (21).

8. The integrated subframe structure according to claim 2, characterized in that: A plurality of connection seats (26) are connected to the lower groove wall of the weight-reducing groove (21); the plurality of connection seats (26) are spaced apart along the length direction of the lower groove wall of the weight-reducing groove (21); and a connection hole (261) is provided on a side of the connection seat (26) away from the lower groove wall of the weight-reducing groove (21).

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