Motorcycle frame and motorcycle

Abstract

The motorcycle frame comprises a vertical pipe and main frames located on the two sides of the vertical pipe, each main frame comprises an upper main pipe, a lower main pipe and a middle main pipe, and the upper main pipes, the lower main pipes and the middle main pipes form a triangular supporting structure I; the front end of the triangular supporting structure I is fixed to the vertical pipe, and the upper main pipe extends backwards out of the triangular supporting structure I and is fixedly connected to the set position of the frame. Compared with the prior art, the motorcycle frame and the motorcycle have higher strength and rigidity, the manufacturing process is more convenient, and the production cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle technology, and in particular to a motorcycle frame and a motorcycle. Background Technology

[0002] Existing motorcycle frame structures, such as Chinese invention patent publication number CN105658512, disclose a frame structure for a straddle-type vehicle. In order to improve the rigidity and strength of the frame seat tube, the front part of the frame, from the front suspension of the engine to the seat tube, has a complex design structure and is relatively heavy, which leads to a relatively complex manufacturing process and is not conducive to cost control.

[0003] Therefore, it is necessary to improve the structure of existing motorcycle frames to meet the requirements of lightweighting, while also increasing the stiffness and strength of the top tube, making the manufacturing process more convenient and reducing production costs. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a motorcycle frame and motorcycle that can improve the stiffness and strength of the seat tube while meeting the requirements of lightweighting, and improve the structural stability of the front of the frame when the whole vehicle is subjected to horizontal impact and lateral torsional impact.

[0005] The motorcycle frame of this utility model includes a top tube and a main frame located on both sides of the top tube. The main frame includes an upper main tube, a lower main tube, and a middle main tube, which together form a triangular support structure I. The front end of the triangular support structure I is fixed to the top tube, and the upper main tube extends rearward from the triangular support structure I and is fixedly connected to a set position on the frame.

[0006] Furthermore, the main frame also includes a reinforcing pipe I, with both ends of the reinforcing pipe I fixed to the riser and the main pipe, respectively, so that the riser, the main pipe and the reinforcing pipe I form a triangular support structure II.

[0007] Furthermore, the frame also includes a reinforcing plate assembly, which includes a main tube reinforcing plate. The main tube reinforcing plate is located at the end of the triangular area formed by the two upper main tubes and the riser, and is fixedly connected to the upper main tube and the riser respectively. The tail of the main tube reinforcing plate is dovetail-shaped and has a connecting flange, which is fixedly connected to the upper riser.

[0008] Furthermore, the reinforcing plate assembly also includes a pair of upper reinforcing plates, which are respectively disposed at the end positions of the triangular area formed by the upper part of the middle section of the reinforcing pipe I and the lower main pipe, and are respectively fixedly connected to the reinforcing pipe I and the lower main pipe. The upper reinforcing plates have a triangular structure and the edges of the upper reinforcing plates are provided with reinforcing flanges.

[0009] Furthermore, the reinforcing plate assembly also includes a pair of lower reinforcing plates, which are respectively disposed at the end positions of the triangular area formed by the lower part of the middle section of the reinforcing pipe I and the lower main pipe, and are respectively fixed to the reinforcing pipe I and the lower main pipe. The cross-section of the lower reinforcing plate is U-shaped.

[0010] The upper and lower reinforcing plates are respectively fixed to both sides of the reinforcing tube I.

[0011] Furthermore, the reinforcing plate assembly also includes a pair of connecting plates I, which are respectively disposed near the connection between the upper main pipe and the lower main pipe, and fixed to the upper main pipe and the lower main pipe.

[0012] Furthermore, the frame also includes an upper cross tube and a lower cross tube. The upper cross tube extends backward and diagonally downward to form a first bend. The first bend extends diagonally downward and parallel to the vehicle width direction to form a second bend. The second bend extends downward and is fixedly connected to the upper cross tube.

[0013] The upper horizontal tube has connecting plates II at both ends, and the lower horizontal tube is connected to the bottom of the connecting plates II at both ends.

[0014] The upper horizontal tube is provided with a rear suspension upper connecting plate, and the lower horizontal tube is provided with a rear suspension lower connecting plate.

[0015] Furthermore, the frame also includes a front suspension connecting plate, and the lower main tube extends downward to form a third bend, the third bend extending downward to connect with one end of the front suspension connecting plate;

[0016] The main pipe extends downward to form a fourth bend, which extends downward to connect with the other end of the front suspension connecting plate.

[0017] Furthermore, the frame also includes a reinforcing tube II, with each end of the reinforcing tube II being connected to the connection points of the two reinforcing tubes I and the two lower main tubes, and the reinforcing tube II and the two lower main tubes forming a triangular support structure III.

[0018] The motorcycle of this utility model includes the motorcycle frame described above.

[0019] The beneficial effects of this utility model are as follows: The motorcycle frame and motorcycle of this utility model are constructed by setting an upper main tube, a lower main tube and a middle main tube to form a main frame, and forming a triangular support structure at the front of the frame. This can improve the structural strength of the main frame, improve the rigidity, stability and strength reliability of the front of the frame when the whole vehicle is subjected to horizontal impact and lateral torsional impact, and the overall structure is simpler than the prior art, which is conducive to achieving structural lightweighting, easier molding and processing, and has a lower production cost. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the frame structure of this utility model;

[0022] Figure 2 for Figure 1 A structural diagram from another perspective;

[0023] Figure 3 for Figure 1 Side view;

[0024] Figure 4 for Figure 3 A schematic diagram of the structure from the perspective of point A;

[0025] Figure label:

[0026] 1. Upper main pipe; 101. First bend; 102. Second bend; 2. Riser; 3. Lower main pipe; 301. Third bend; 4. Connecting plate I; 5. Upper reinforcing plate; 6. Lower reinforcing plate; 7. Middle main pipe; 701. Fourth bend; 8. Front suspension connecting plate; 801. Front suspension mounting hole; 9. Reinforcing pipe I; 10. Upper tailpipe; 11. Lower tailpipe; 12. Rear suspension upper connecting plate; 13. Upper horizontal pipe; 14. Connecting plate II; 15. Bushing; 16. Rear suspension lower connecting plate; 17. Lower horizontal pipe; 18. Reinforcing pipe II; 19. Main pipe reinforcing plate; Detailed Implementation

[0027] Figure 1 This is a schematic diagram of the frame structure of this utility model. Figure 2 for Figure 1 Another structural diagram from another perspective. Figure 3 for Figure 1 Side view, Figure 4 for Figure 3 A structural diagram from the perspective of A, as shown below. Figure 1-4As shown: The motorcycle frame of this embodiment includes a riser tube 2 and a main frame located on both sides of the riser tube 2. The main frame includes an upper main tube 1, a lower main tube 3 and a middle main tube 7. The upper main tube 1, the lower main tube 3 and the middle main tube 7 form a triangular support structure I. The front end of the triangular support structure I is fixed to the riser tube 2, and the upper main tube 1 extends backward out of the triangular support structure I and is fixedly connected to a set position on the frame. The front and rear are relative to the front and rear direction of the motorcycle. There are two upper main tubes 1, lower main tubes 3, and middle main tubes 7, that is, the main frame is a pair. The riser 2 is hinged to the steering column and the front wheel system. The upper main tube 1 is connected to the upper part of the riser 2 (relative to the vertical direction of the motorcycle). The lower main tube 3 is connected to the connection between the upper main tube 1 and the riser 2. The middle main tube 7 is connected to the middle part of the upper main tube 1. Thus, the front end of the triangular support structure I is fixed to the riser 2, which can improve the structural strength of the riser 2 and improve its impact resistance. Generally, the upper main tube 1 extends backward to the upper cross tube 13 of the frame and is then fixed. Compared with the existing technology, while improving the structural strength of the front of the frame, the structure is simpler, which is conducive to molding and processing and structural lightweighting.

[0028] In this embodiment, the main frame further includes a reinforcing tube I9, with both ends of the reinforcing tube I9 fixed to the riser 2 and the lower main tube 3, respectively, so that the riser 2, the lower main tube 3, and the reinforcing tube I9 form a triangular support structure II. One end of the reinforcing tube I9 is ​​fixed to the lower part of the riser 2 (relative to the vertical direction of the motorcycle), and the other end of the reinforcing tube I9 is ​​fixed to the upper middle part of the lower main tube 3. Thus, the reinforcing tube I9, the lower main tube 3, and the riser 2 form a triangular support structure II. By forming two triangular support structures that are staggered at the front of the frame, the structural strength and impact resistance of the entire vehicle can be improved.

[0029] Specifically, the diameter of the middle main pipe 7 is smaller than that of the upper main pipe 1, and the diameter of the reinforcing pipe I 9 is smaller than that of the middle main pipe 7. The ratio of the diameter of the reinforcing pipe I 9 to that of the upper main pipe 1 is 1:2. Generally, the diameters of the upper main pipe 1 and the lower main pipe 3 are the same. By rationally designing the diameters of the upper main pipe 1, the lower main pipe 3, the middle main pipe 7, and the reinforcing pipe I 9, it is beneficial to achieve structural lightweighting while meeting the requirements of rigidity and strength.

[0030] In this embodiment, the frame further includes a reinforcing plate assembly, which includes a main tube reinforcing plate 19. The main tube reinforcing plate 19 is disposed at the end position of the triangular area formed by the two upper main tubes 1 and the riser tube 2, and is fixedly connected to the upper main tube 1 and the riser tube 2 respectively. The tail of the main tube reinforcing plate 19 is dovetail-shaped and has a connecting flange, which is fixedly connected to the upper riser tube 2. The main tube reinforcing plate 19 has a similar triangular structure. The main tube reinforcing plate 19 is connected to the front position of the upper main tube 1 and the riser tube 2 respectively, thereby improving the structural strength at the connection between the riser tube 2 and the upper main tube 1. The tail of the main tube reinforcing plate 19 (relative to the rear part in the front-rear direction of the motorcycle) forms a connecting flange, which can improve the structural strength of the main tube reinforcing plate 19 and increase the connection area with the upper main tube 1, thereby further improving the structural strength at the connection between the main tube reinforcing plate 19 and the upper main tube 1.

[0031] In this embodiment, the reinforcing plate assembly further includes a pair of upper reinforcing plates 5. The upper reinforcing plates 5 are respectively disposed at the end positions of the triangular area formed by the upper middle portion of the reinforcing pipe I9 and the lower main pipe 3, and are respectively fixedly connected to the reinforcing pipe I9 and the lower main pipe 3. The upper reinforcing plates 5 have a triangular structure, and their edges are provided with reinforcing flanges. By setting the upper reinforcing plates 5, the structural strength at the connection between the reinforcing pipe I9 and the lower main pipe 3 can be enhanced. The upper reinforcing plates 5 have a triangular structure, and their edges are provided with reinforcing flanges, thereby improving the structural strength of the upper reinforcing plates 5 themselves. Simultaneously, the contact area with the upper main pipe 1 and the reinforcing pipe I9 can be increased, which is beneficial for further improving the connection strength between the upper reinforcing plates 5 and the reinforcing pipe I9 and the lower main pipe 3.

[0032] In this embodiment, the reinforcing plate assembly further includes a pair of lower reinforcing plates 6. The lower reinforcing plates 6 are respectively disposed at the end positions of the triangular area formed by the lower part of the reinforcing tube I9 and the lower main tube 3, and are respectively fixed to the reinforcing tube and the lower main tube 3. The cross-section of the lower reinforcing plate 6 is U-shaped. The lower reinforcing plates 6 are respectively connected to the lower part of the reinforcing tube and the lower main tube 3, thereby further improving the structural strength at the connection between the reinforcing tube I9 and the lower main tube 3, and improving the ability of the front of the frame to resist side impacts.

[0033] The upper reinforcing plate 5 and the lower reinforcing plate 6 are respectively fixed to both sides of the reinforcing tube I9. The upper reinforcing plate 5 is connected to the inner side of the reinforcing tube I9, and the lower reinforcing plate 6 is connected to the outer side of the reinforcing tube I9, thereby improving the structural strength of the reinforcing tube I9.

[0034] In this embodiment, the reinforcing plate assembly further includes a pair of connecting plates I4, which are respectively disposed near the connection between the upper main pipe 1 and the lower main pipe 3, and fixed to the upper main pipe 1 and the lower main pipe 3. The rear end of the connecting plate I4 is recessed. By setting the connecting plate I4, the structural strength at the connection between the upper main pipe 1 and the lower main pipe 3 can be improved, thereby enhancing the impact resistance of the front of the frame.

[0035] In this embodiment, the frame further includes an upper horizontal tube 13 and a lower horizontal tube 17. The upper horizontal tube 1 extends backward and diagonally downward to form a first bend 101. The first bend 101 extends diagonally downward and parallel to the vehicle width direction to form a second bend 102. The second bend 102 extends downward and is fixedly connected to the upper horizontal tube 13. The first bend 101 continues to extend diagonally downward to form the second bend 102. The second bend 102 is approximately parallel to the ground. The second bend 102 continues to extend downward and is connected to the upper horizontal tube 13, thereby forming the front structure of the frame.

[0036] The upper horizontal tube 13 is provided with connecting plates II 14 at both ends, and the lower horizontal tube 17 is connected to the bottom of the connecting plates II 14 at both ends. The upper end of the connecting plates II 14 is fixedly connected to the upper horizontal tube 13, and the lower horizontal tube 17 is fixedly connected to the lower end of the connecting plates II 14. The connecting plates II 14 are provided with bushings 15 for hinged connection with the rear wheel swing arm system.

[0037] The upper horizontal tube 13 is provided with a rear suspension upper connecting plate 12, and the lower horizontal tube 17 is provided with a rear suspension lower connecting plate 16. The rear suspension upper connecting plate 12 is detachably and fixedly connected to the engine upper suspension support, and the rear suspension lower connecting plate 16 is detachably and fixedly connected to the engine rear suspension support.

[0038] In this embodiment, the frame also includes a front suspension connecting plate 8. The lower main tube 3 extends downward to form a third bend 301, and the third bend 301 extends downward to connect with one end of the front suspension connecting plate 8. Of course, there are two front suspension connecting plates 8, which is consistent with the number of main frames. The lower main tube 3 extends downward to the front of the engine cylinder head to form a third bend 301, and the third bend 301 extends downward to be fixedly connected to the front end of the front suspension connecting plate 8. The front suspension connecting plate 8 is detachably fixedly connected to the front suspension mounting hole 801 near the exhaust port of the engine cylinder head.

[0039] The central main pipe 7 extends downward to form a fourth bend 701, which extends downward to connect with the other end of the front suspension connecting plate 8. The central main pipe 7 extends towards the engine cylinder head front suspension mounting hole 801 to near the engine cylinder head to form a fourth bend 701, which extends downward to be fixedly connected to the rear end of the front suspension connecting plate 8.

[0040] In this embodiment, the frame further includes a reinforcing tube II 18. Both ends of the reinforcing tube II 18 are respectively connected to the vicinity of the connection points between the two reinforcing tubes I 9 and the two lower main tubes 3, and the reinforcing tube II 18 and the two lower main tubes 3 form a triangular support structure III. One end of the reinforcing tube II 18 is fixedly connected to the vicinity of the connection point between the reinforcing tube I 9 and the lower main tube 3 on the left side (relative to the left-right direction of the motorcycle), and the other end of the reinforcing tube II 18 is fixedly connected to the vicinity of the connection point between the reinforcing tube I 9 and the lower main tube 3 on the right side (relative to the left-right direction of the motorcycle). Specifically, the connection point is generally located in the middle between the connection point of the reinforcing tube I 9 and the lower main tube 3 and the third bend 301. Thus, the reinforcing tube II 18 forms a triangular support structure III at the front of the frame, which can further improve the rigidity and stability of the front of the frame.

[0041] The motorcycle of this embodiment includes the motorcycle frame described above. The main frame forms the front frame of the frame, and the frame also includes a rear frame, which is disposed on both sides of the riser tube 2. The rear frame generally includes an upper tail tube 10 fixedly connected to the upper main tube 1 and a lower tail tube 11 fixedly connected to the connecting plate II 14, which will not be described in detail here.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A motorcycle frame, characterized in that: It includes a riser and a main frame located on both sides of the riser. The main frame includes an upper main pipe, a lower main pipe and a middle main pipe. The upper main pipe, the lower main pipe and the middle main pipe form a triangular support structure I. The front end of the triangular support structure I is fixed to the riser. The upper main pipe extends backward from the triangular support structure I and is fixedly connected to a set position on the frame.

2. The motorcycle frame according to claim 1, characterized in that: The main frame also includes a reinforcing pipe I, with both ends of the reinforcing pipe I fixed to the riser and the main pipe, respectively, so that the riser, the main pipe and the reinforcing pipe I form a triangular support structure II.

3. The motorcycle frame according to claim 1, characterized in that: The frame also includes a reinforcing plate assembly, which includes a main tube reinforcing plate. The main tube reinforcing plate is located at the end of the triangular area formed by the two upper main tubes and the riser, and is fixedly connected to the upper main tube and the riser respectively. The tail of the main tube reinforcing plate is dovetail-shaped and has a connecting flange, which is fixedly connected to the upper riser.

4. The motorcycle frame according to claim 3, characterized in that: The reinforcing plate assembly also includes a pair of upper reinforcing plates, which are respectively disposed at the end positions of the triangular area formed by the upper part of the middle section of the reinforcing pipe I and the lower main pipe, and are respectively fixedly connected to the reinforcing pipe I and the lower main pipe. The upper reinforcing plates have a triangular structure and the edges of the upper reinforcing plates are provided with reinforcing flanges.

5. The motorcycle frame according to claim 4, characterized in that: The reinforcing plate assembly also includes a pair of lower reinforcing plates. The lower reinforcing plates are respectively located at the end of the triangular area formed by the lower part of the middle section of the reinforcing pipe I and the lower main pipe, and are respectively fixed to the reinforcing pipe I and the lower main pipe. The cross-section of the lower reinforcing plate is U-shaped. The upper and lower reinforcing plates are respectively fixed to both sides of the reinforcing tube I.

6. The motorcycle frame according to claim 3, characterized in that: The reinforcing plate assembly also includes a pair of connecting plates I, which are respectively disposed near the connection between the upper main pipe and the lower main pipe and fixed to the upper main pipe and the lower main pipe.

7. The motorcycle frame according to claim 1, characterized in that: The frame also includes an upper horizontal tube and a lower horizontal tube. The upper horizontal tube extends backward and diagonally downward to form a first bend. The first bend extends diagonally downward and parallel to the vehicle width direction to form a second bend. The second bend extends downward and is fixedly connected to the upper horizontal tube. The upper horizontal tube has connecting plates II at both ends, and the lower horizontal tube is connected to the bottom of the connecting plates II at both ends. The upper horizontal tube is provided with a rear suspension upper connecting plate, and the lower horizontal tube is provided with a rear suspension lower connecting plate.

8. The motorcycle frame according to claim 7, characterized in that: The frame also includes a front suspension connecting plate, and the lower main tube extends downward to form a third bend, which extends downward to connect with one end of the front suspension connecting plate. The main pipe extends downward to form a fourth bend, which extends downward to connect with the other end of the front suspension connecting plate.

9. The motorcycle frame according to claim 2, characterized in that: The frame also includes a reinforcing tube II, with each end of the reinforcing tube II connected to the connection points of the two reinforcing tubes I and the two lower main tubes, and the reinforcing tube II and the two lower main tubes forming a triangular support structure III.

10. A motorcycle, characterized in that: Includes the motorcycle frame as described in any one of claims 1-9.

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