Motorcycle split frame and aluminum part local installation structure

Abstract

The utility model discloses a partial mounting structure for a split frame and an aluminum piece of a motorcycle, which is characterized in that a left pipe joint is connected with the frame and a rear left connecting frame, and the left pipe joint is provided with an avoiding notch; the independent left side pipe joint is arranged on the frame to avoid the rear left connecting frame of the frame, higher strength is achieved, avoiding notches can be formed in the joint according to the positions of an engine assembly and the rear left connecting frame to guarantee the manufacturing process and performance requirements of the joint, the joint is welded to the frame body pipe in a wedge shape, the appearance is attractive, and meanwhile welding is reliable; the use universality of parts on the frame is improved, and the installation mode is reliable and safe while the appearance of an existing frame is maintained; and meanwhile, the layout and design period is shortened.

Description

Technical Field

[0001] The utility model relates to a local mounting structure for a motorcycle, in particular to a local mounting structure for a split frame and aluminum parts of a motorcycle. Background Art

[0002] The motorcycle frame is a crucial component. As the overall support for the motorcycle, it must possess a certain level of strength and rigidity. The frame is often also partially exposed as an exterior component. Within the overall layout of a motorcycle, especially for compact motorcycles, the frame is often connected to many other parts. For example, a hybrid steel and aluminum motorcycle frame typically uses bushings welded to the frame and screwed through the bushings to connect the two components. To ensure the bushings are securely welded to the frame, sufficient lateral space must be reserved at both ends for welding. While component structural design must meet performance requirements, it is also influenced by the overall vehicle layout, particularly the clearance around moving parts such as the engine assembly. With aluminum components fixed in position, sufficient space is generally required for the lateral connection to the bushings.

[0003] To achieve both strength and rigidity in motorcycle frame connections while also achieving aesthetics and stability, existing technologies generally involve adjusting the overall orientation of frame tubes or rearranging related parts. This increases frame mold costs and cycle times, results in poor part versatility, and prolongs the design cycle, significantly increasing overall costs and hindering widespread implementation. Summary of the Invention

[0004] Purpose of the invention: The purpose of the utility model is to provide a motorcycle split frame and aluminum parts local installation structure with reliable structure, strong adaptability and further reduced space required for components.

[0005] Technical solution: The utility model provides a split motorcycle frame and aluminum part local mounting structure, including a frame, wherein the local mounting structure is a left-side pipe joint connecting the frame and the rear left connecting frame, the rear left connecting frame being placed on the right side of the left-side pipe joint, one end of the left-side pipe joint being a connecting column connecting the frame, and one end being provided with a groove, a through hole being provided in the groove, the rear left connecting frame being bolted to the left-side pipe joint through the through hole, and the left-side pipe joint being provided with an avoidance recess; wherein, in order to ensure the clearance between the rear left connecting frame and the engine assembly, the lateral position of the area on the rear left connecting frame that cooperates with the left-side pipe joint is fixed; a through hole is provided in the groove in a U-shaped structure with a hole, thereby reducing the weight of the parts.

[0006] Among them, the avoidance recess is L-shaped, and the avoidance recess occupies 1 / 3 to 1 / 4 of the thickness of the left pipe joint; the engine assembly is provided on the right side of the left pipe joint. Since the lateral space between the frame and the rear left connecting frame is fixed, in order to ensure the connection between the left pipe joint, the frame, and the rear left connecting frame, a recess for avoiding the rear left connecting frame is provided on the left pipe joint while the gap between the rear left connecting frame and the engine assembly remains unchanged. The thickness of the avoidance recess not only ensures the structural stability of the left pipe joint, but also maintains pores for compact placement of components, which is extremely suitable for motorcycles with compact space layout.

[0007] Wherein, the connecting column is a solid cylindrical pipe joint, and the outer diameter of the connecting column is consistent with the inner diameter of the left side tube of the frame.

[0008] Wherein, a step is provided on the connecting column of the left pipe joint, and the step forms a wedge-shaped structure with the left pipe.

[0009] Among them, the connecting column is welded to the left side tube of the frame, the length of the connecting column and the left side tube is 8 to 12 mm, the outer diameter of the connecting column on the left side tube joint is the same as the inner diameter of the left side tube nesting, the radial weld gap between the connecting column and the left side tube is 1 to 2 mm, and the port mating part is a wedge-shaped structure.

[0010] Wherein, the groove is cylindrical or truncated cone-shaped.

[0011] Wherein, the left pipe joint is a steel casting, which increases strength, is reliable to install, and has good consistency in part size.

[0012] Among them, a connection point is provided on the rear left connecting frame, which cooperates with the avoidance recess on the left pipe joint to maintain the gap between the rear left connecting frame and the engine assembly, further reducing the space required for installation; the connection point is connected to the left pipe joint bolt through a through hole, and the left pipe joint and the rear left connecting frame are connected together by an M10x25x1.25 hexagon socket head screw.

[0013] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages: the motorcycle split frame and aluminum parts local installation structure of the utility model, by arranging an independent left-side pipe joint on the frame to avoid the rear left connecting frame of the frame, the solid pipe joint used in the left pipe joint has higher strength, and the avoidance recess can be set on the joint according to the position of the engine assembly and the rear left connecting frame to ensure the manufacturing process and performance requirements of the joint. The joint is welded to the main tube of the frame in a wedge shape, which has beautiful appearance and reliable welding; it increases the versatility of the parts on the frame, maintains the appearance of the existing frame, and the installation method is reliable and safe; at the same time, it shortens the layout and design cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a connection diagram of the utility model;

[0015] Figure 2 This is an exploded schematic diagram of the connection structure of the present invention;

[0016] Figure 3 This is a structural cross-sectional view of the left side pipe joint of the present utility model;

[0017] Figure 4 This is a front view of the structure of the left pipe joint of the present invention;

[0018] Among them, the left side pipe joint 1, the frame 2, the engine assembly 3, the rear left connecting frame 4, the hexagon socket head screw 5, the groove 11, the through hole 12, the avoidance recess 13, the step 14, the connecting column 15, the connection point 41, and the connection port 42. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0020] Example 1

[0021] A motorcycle split frame and aluminum component partial mounting structure includes a frame 2, a left-side pipe joint 1 connecting the frame 2 and a rear left connecting frame 4, an engine assembly 3 being provided on the right side of the left-side pipe joint 1, and the rear left connecting frame 4 being arranged to the right of the left-side pipe joint 1. The area on the rear left connecting frame 4 that cooperates with the left-side pipe joint 1 is fixed in a horizontal position. One end of the left-side pipe joint 1 is a connecting column 15 for connecting to the frame 2, and one end is provided with a cylindrical groove 11, and a through hole 12 is provided in the groove 11. The rear left connecting frame 4 is bolted to the left-side pipe joint 1 via the through hole 12. The left-side pipe joint 1 is provided with an avoidance recess 13. The avoidance recess 13 is L-shaped and accounts for 1 / 4 of the thickness of the left-side pipe joint 1. The left-side pipe joint 1 has a function of avoiding the rear left connecting frame 4, ensuring a safe gap between the rear left connecting frame 4 and the engine assembly 3.

[0022] The connecting column 15 is a solid cylindrical pipe joint, and the outer diameter of the connecting column 15 is consistent with the inner diameter of the left side tube 21 of the frame 2; the connecting column 15 of the left side pipe joint 1 is provided with a step 14, and the step 14 forms a wedge-shaped structure with the left side tube 21; the connecting column 15 is welded to the left side tube 21 of the frame 2; the length of the nesting between the connecting column 15 and the left side tube 21 is 8 to 12 mm, and the welding method is a single-sided V-shaped full-circle weld connection. The outer diameter of the connecting column on the left side pipe joint is φ23 mm, and the inner diameter of the nesting left side tube is φ23 mm. The radial weld gap between the connecting column and the left side tube is 1 mm, and the port mating part is a wedge-shaped structure.

[0023] A connection point 41 is provided on the rear left connecting frame 4. The connection point 41 of the rear left connecting frame 4 cooperates with the avoidance recess 13 on the left pipe joint 1 to leave space for other components, reducing the space required for the whole. The connection point 41 is bolted to the left pipe joint 1 through the through hole 12. The bolt connection adopts a hexagon socket head screw 5. The hexagon socket head screw 5 of M10x25x1.25 is passed through the through hole 12 on the left pipe joint 1 to connect to the rear left connecting frame 4. The rear left connecting frame 4 is also provided with a connection port 42 and a common interface on the frame 2, which is reinforced by a hexagon socket head screw of M10x25x1.25.

[0024] The utility model discloses a split motorcycle frame and aluminum component local mounting structure. An independent left-side pipe joint 1 is provided on the frame 2 to avoid the frame rear left connecting frame 4. The lower portion of the left-side pipe joint 1 is solid and made of cast steel, which has higher strength. An avoidance recess 13 can be provided on the left-side pipe joint 1 according to the position of the engine assembly 3 and the rear left connecting frame 4 to ensure the manufacturing process and performance requirements of the joint. The joint is welded to the lower left-side pipe 21 on the frame 2 in a wedge shape, which has an aesthetically pleasing appearance and reliable welding. At the same time, this technology minimizes the adjustment of the entire vehicle layout.

Claims

1. A motorcycle split frame and aluminum part local mounting structure, comprising a frame (2), characterized in that: The local mounting structure is a left pipe joint (1) connecting the vehicle frame (2) and the rear left connecting frame (4), the rear left connecting frame (4) is placed on the right side of the left pipe joint (1), one end of the left pipe joint (1) is a connecting column (15) connected to the vehicle frame (2), and one end is provided with a groove (11), a through hole (12) is provided in the groove (11), the rear left connecting frame (4) is bolted to the left pipe joint (1) through the through hole (12), and the left pipe joint (1) is provided with an avoidance notch (13).

2. The local mounting structure according to claim 1, characterized in that: The avoidance recess (13) is L-shaped.

3. The local mounting structure according to claim 1, wherein: The avoidance recess (13) occupies 1 / 3 to 1 / 4 of the thickness of the left pipe joint (1).

4. The local mounting structure according to claim 1, wherein: An engine assembly (3) is provided on the right side of the left pipe joint (1).

5. The local mounting structure according to claim 1, wherein: The connecting column (15) is a solid cylindrical pipe joint, and the outer diameter of the connecting column (15) is consistent with the inner diameter of the left side pipe (21) of the frame (2).

6. The local mounting structure according to claim 1, wherein: A step (14) is provided on the connecting column (15) of the left pipe joint (1), and the step (14) and the left pipe (21) form a wedge-shaped structure.

7. The local mounting structure according to claim 6, characterized in that: The connecting column (15) is connected to the left side tube (21) of the vehicle frame (2) by welding; the nesting length of the connecting column (15) and the left side tube (21) is 8 to 12 mm.

8. The local mounting structure according to claim 1, wherein: The groove (11) is cylindrical or truncated cone-shaped.

9. The local mounting structure according to claim 1, wherein: The left side pipe joint (1) is a steel casting.

10. The local mounting structure according to claim 1, characterized in that: A connection site (41) is provided on the rear left connecting frame (4), and the connection site (41) is bolted to the left pipe joint (1) through a through hole (12), wherein the bolt connection adopts a hexagon socket head screw (5).

Images