A motorcycle frame based on high strength design

Abstract

The utility model provides a kind of motorcycle frame based on high-strength design, including riser, main beam and front support beam;Main beam includes first beam body and second beam body, and the lower end of first beam body and second beam body is fixedly connected by support rod piece, and first connecting beam is arranged between first beam body and second beam body;Front support beam includes left lower beam and right lower beam, and the lower end of left lower beam and right lower beam is fixedly connected by connecting rod piece, and second connecting beam is arranged between left lower beam and right lower beam, and support plate piece is further arranged between left lower beam and right lower beam, and both ends of support plate piece are fixedly connected with second connecting beam and connecting rod piece respectively.First connecting beam can support the middle bending part of first beam body and the middle bending part of second beam body, and then improve the structural strength of main beam.Support plate piece can support the lower bending part of left beam and the lower bending part of right beam, and then improve the structural strength of front support beam.

Description

Technical Field

[0001] This utility model relates to motorcycle frames, and more particularly to a motorcycle frame based on a high-strength design. Background Technology

[0002] Currently, Chinese patent CN217623916U discloses a motorcycle frame, including a top tube, a main beam, and a front support beam. The main beam is connected to a support seat for mounting a seat, and a rear swingarm is rotatably connected to the main beam. The main beam includes a first beam and a second beam, which are respectively fixedly connected to the top tube. A first connecting beam is provided between the first beam and the second beam. The front support beam includes a left beam and a right beam, which are respectively fixedly connected to the top tube. Both ends of the left beam are fixedly connected to the first beam, and both ends of the right beam are fixedly connected to the second beam. A second connecting beam is fixedly connected between the left beam and the right beam.

[0003] However, in the aforementioned motorcycle frame, the first connecting beam is located in the lower half of the first and second beams, not at the bending points of the first and second beams. Therefore, when the first and / or second beams are subjected to external impact, the bending points are prone to deformation. Similarly, the second connecting beam is located in the upper half of the left and right beams, not at the bending points of the left and right beams. This again makes the left and / or right beams prone to deformation at the bending points when subjected to external impact.

[0004] In summary, the aforementioned motorcycle frame has the defect of relatively low structural strength in the main beam and front support beam. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a motorcycle frame based on a high-strength design, which has the advantage of relatively high structural strength of the main beam and the front support beam.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a motorcycle frame based on a high-strength design, including a top tube, a main beam, and a front support beam; The main beam includes a first beam and a second beam. The upper ends of the first beam and the second beam are fixedly connected to the riser. The lower ends of the first beam and the second beam are fixedly connected by support rods. The middle part of the first beam and the second beam both protrude upward and form a middle bend. A first connecting beam is provided between the first beam and the second beam. The two ends of the first connecting beam are fixedly connected to the middle bend of the first beam and the middle bend of the second beam, respectively. The front support beam includes a lower left beam and a lower right beam. The upper end of the lower left beam is fixedly connected to the first beam body, and the upper end of the lower right beam is fixedly connected to the second beam body. The lower ends of the lower left beam and the lower right beam are fixedly connected by connecting rods. The middle parts of the lower left beam and the lower right beam both bulge downwards to form a lower bend. A second connecting beam is provided between the lower left beam and the lower right beam. The second connecting beam is located above the lower bend. A support plate is also provided between the lower left beam and the lower right beam. The two ends of the support plate are fixedly connected to the second connecting beam and the connecting rod, respectively, and the shape of the support plate is adapted to the shape of the lower left beam and the lower right beam.

[0007] Through the above technical solution, the first beam, the second beam, and the supporting members form a near-triangular structure. This configuration of the main beam provides high structural strength and reduces the likelihood of deformation. Both the first and second beams have upward-protruding mid-sections forming central bends, preventing them from bending inwards. A first connecting beam connects the first and second beams, with its two ends connecting to the central bends of the first and second beams respectively. This first connecting beam supports the central bends of both beams, thereby enhancing the structural strength of the main beam.

[0008] The lower left and right beams, along with the connecting rods, form a near-triangular structure, giving the front support beam high structural strength and making it less prone to deformation. Both the left and right beams have downward-protruding sections in the middle, forming downward bends, which prevent them from bending inwards. Support plates are installed between the left and right beams, connecting to the downward bends of both beams. This support plate arrangement effectively supports the downward bends of the left and right beams, further enhancing the structural strength of the front support beam. Second connecting beams and connecting rods are located on the upper and lower sides of the support plates, respectively, reinforcing their structural strength and further improving the overall structural strength of the front support beam.

[0009] In summary, the motorcycle frame described above has the advantage of relatively high structural strength in its main beam and front support beam.

[0010] Preferably, a mounting chamber for mounting an engine is formed between the main beam and the front support beam. A first mounting seat is provided on the first connecting beam facing the mounting chamber. A first mounting hole for positioning the upper end of the engine is provided through the first mounting seat. A second mounting seat is provided on the connecting rod facing the mounting chamber. A second mounting hole for positioning the lower end of the engine is provided through the second mounting seat.

[0011] The above technical solution involves placing the first mounting hole for positioning the upper part of the engine on the first mounting base, thus eliminating the need to drill holes in the first connecting beam. Similarly, placing the second mounting hole for positioning the lower part of the engine on the second mounting base eliminates the need to drill holes in the connecting rod. This arrangement ensures the structural strength of the main beam and the front support beam.

[0012] Preferably, the second connecting beam has an upper mounting opening facing the supporting plate, the upper end of the supporting plate extends into the upper mounting opening, and the upper end of the supporting plate is fixedly connected to the second connecting beam by welding. The connecting rod has a third mounting seat facing the supporting plate, the two ends of the third mounting seat are fixedly connected to the lower left beam and the lower right beam respectively, the side of the third mounting seat has a lower mounting opening, the lower end of the supporting plate extends into the lower mounting opening, and the lower end of the supporting plate is fixedly connected to the third mounting seat by welding.

[0013] The above technical solution involves creating an upper mounting opening on the second connecting beam, which facilitates the welding process at the upper end of the support plate. Similarly, creating a lower mounting opening on the third mounting base further facilitates the welding process of the support plate. By placing the lower mounting opening on the third mounting base, it is unnecessary to drill holes in the connecting rod, thus ensuring high structural strength of the connecting rod.

[0014] Preferably, the lower end of the upper mounting opening and the upper end of the lower mounting opening are both widened to form countersunk holes.

[0015] With the above technical solution, the lower end of the upper mounting opening and the upper end of the lower mounting opening are both widened to form countersunk holes. In this way, when the support plate is welded and fixed to the second connecting beam and the third mounting base, the weld between the countersunk hole and the support plate is wider and the connection is more stable.

[0016] Preferably, it further includes a rear support beam, which includes an upper left beam and an upper right beam. The upper ends of the upper left beam and the upper right beam are fixedly connected to the riser. The lower ends of the upper left beam and the upper right beam pass around the support member from the outside and are fixedly connected to the connecting member. The middle part of the upper left beam and the middle part of the upper right beam both protrude upward to form an upper bend. A third connecting beam is provided between the upper left beam and the upper right beam. The third connecting beam is located above the upper bend. A fourth connecting beam is provided between the upper left beam and the upper right beam. The fourth connecting beam is located below the upper bend.

[0017] Through the above technical solution, the upper left beam, upper right beam, and connecting rods form a triangular structure. This rear support beam has high structural strength and is not easily deformed. The third and fourth connecting beams are located on the upper and lower sides of the upper bend, respectively, and can support the upper left and upper right beams, making them less prone to deformation.

[0018] Preferably, a reinforcing seat is fixedly sleeved on the outer side of the support rod, and the reinforcing seat is fixedly connected to the upper left beam and the upper right beam.

[0019] The above technical solution can enhance the connection strength of the main beam and the rear support beam, thereby improving the structural strength of the motorcycle frame.

[0020] Preferably, the reinforcing seat has a left mounting groove facing the upper left beam for the upper left beam to be inserted, and the reinforcing seat is fixedly connected to the upper left beam by welding. The reinforcing seat also has a right mounting groove facing the upper right beam for the upper right beam to be inserted, and the reinforcing seat is fixedly connected to the upper right beam by welding.

[0021] The above technical solution ensures that the shape of the mounting groove on the left matches the shape of the upper left beam, making the welding process between the reinforcing seat and the upper left beam more convenient. Similarly, the shape of the mounting groove on the right matches the shape of the upper right beam, further facilitating the welding process between the reinforcing seat and the upper right beam. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a cross-sectional schematic diagram of an embodiment; Figure 3 for Figure 2 Enlarged view of part A; Figure 4 for Figure 2 Enlarged view of part B.

[0023] Reference numerals: 1. Riser; 2. Support rod; 3. Main beam; 31. First beam; 32. Second beam; 4. Front support beam; 41. Lower left beam; 42. Lower right beam; 5. Middle bend; 6. First connecting beam; 7. Connecting rod; 8. Lower bend; 9. Second connecting beam; 10. Support plate; 11. Mounting chamber; 12. First mounting seat; 13. First mounting hole; 14. Second mounting seat; 15. Second mounting hole; 16. Upper mounting opening; 17. Third mounting seat; 18. Lower mounting opening; 19. Countersunk hole; 20. Rear support beam; 201. Upper left beam; 202. Upper right beam; 21. Upper bend; 22. Third connecting beam; 23. Fourth connecting beam; 24. Reinforcing seat; 25. Left mounting groove; 26. Right mounting groove. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0025] A motorcycle frame based on a high-strength design, such as Figures 1 to 4 As shown, it includes riser 1, main beam 3, front support beam 4 and rear support beam 20.

[0026] The main beam 3 includes a first beam 31 and a second beam 32 symmetrically arranged around the axis of the riser 1. The upper ends of both the first beam 31 and the second beam 32 are fixedly connected to the riser 1, and the lower ends of both beams are fixedly connected by support members 2. The middle part of both the first beam 31 and the second beam 32 protrudes upward to form a central bend 5, and the bending angle of the first beam 31 and the second beam 32 is an obtuse angle. A first connecting beam 6 is provided between the first beam 31 and the second beam 32, and the two ends of the first connecting beam 6 are fixedly connected to the central bend 5 of the first beam 31 and the central bend 5 of the second beam 32, respectively.

[0027] The front support beam 4 includes a lower left beam 41 and a lower right beam 42 symmetrically arranged around the axis of the riser 1. The upper end of the lower left beam 41 is fixedly connected to the first beam body 31, and the upper end of the lower right beam 42 is fixedly connected to the second beam body 32. The lower ends of the lower left beam 41 and the lower right beam 42 are fixedly connected by connecting rods 7. The middle part of the lower left beam 41 and the lower right beam 42 both bulge downward to form a lower bend 8, and the bending angle of the lower left beam 41 and the lower right beam 42 is an obtuse angle. A second connecting beam 9 is provided between the lower left beam 41 and the lower right beam 42. The second connecting beam 9 is located above the lower bend 8. A support plate 10 is also provided between the lower left beam 41 and the lower right beam 42. The two ends of the support plate 10 are fixedly connected to the second connecting beam 9 and the connecting rod 7, respectively, and the shape of the support plate 10 is adapted to the shape of the lower left beam 41 and the lower right beam 42.

[0028] A mounting chamber 11 for mounting the engine is formed between the main beam 3 and the front support beam 4. A first mounting seat 12 is provided on the first connecting beam 6 facing the mounting chamber 11, and a first mounting hole 13 for positioning the upper end of the engine is provided through the first mounting seat 12. A second mounting seat 14 is provided on the connecting rod 7 facing the mounting chamber 11, and a second mounting hole 15 for positioning the lower end of the engine is provided through the second mounting seat 14, and the second mounting hole 15 is parallel to the first mounting hole 13.

[0029] The second connecting beam 9 has an upper mounting opening 16 facing the support plate 10. The upper end of the support plate 10 extends into the upper mounting opening 16 and is fixedly connected to the second connecting beam 9 by welding. The connecting rod 7 has a third mounting seat 17 facing the support plate 10. The two ends of the third mounting seat 17 are fixedly connected to the lower left beam 41 and the lower right beam 42, respectively. The side of the third mounting seat 17 has a lower mounting opening 18. The lower end of the support plate 10 extends into the lower mounting opening 18 and is fixedly connected to the third mounting seat 17 by welding. The lower end of the upper mounting opening 16 and the upper end of the lower mounting opening 18 are both flared to form countersunk holes 19.

[0030] The rear support beam 20 includes a left upper beam 201 and a right upper beam 202 symmetrically arranged around the axis of the riser 1. The upper ends of both the left upper beam 201 and the right upper beam 202 are fixedly connected to the riser 1, and the lower ends of both beams pass around the support member 2 from the outside and are fixedly connected to the connecting member 7. The middle parts of the left upper beam 201 and the right upper beam 202 both protrude upwards to form an upper bend 21, and the bending angle of the left upper beam 201 and the right upper beam 202 is an obtuse angle. A third connecting beam 22 is provided between the left upper beam 201 and the right upper beam 202, and the third connecting beam 22 is located above the upper bend 21. A fourth connecting beam 23 is provided between the left upper beam 201 and the right upper beam 202, and the fourth connecting beam 23 is located below the upper bend 21.

[0031] A reinforcing seat 24 is fixedly sleeved on the outer side of the support rod 2, and the reinforcing seat 24 is fixedly connected to the upper left beam 201 and the upper right beam 202. The reinforcing seat 24 has a left mounting groove 25 facing the upper left beam 201 for the upper left beam 201 to be inserted, and the reinforcing seat 24 is fixedly connected to the upper left beam 201 by welding. The reinforcing seat 24 has a right mounting groove 26 facing the upper right beam 202 for the upper right beam 202 to be inserted, and the reinforcing seat 24 is fixedly connected to the upper right beam 202 by welding.

[0032] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A motorcycle frame based on a high-strength design, characterized in that: It includes riser (1), main beam (3) and front support beam (4); The main beam (3) includes a first beam body (31) and a second beam body (32). The upper ends of the first beam body (31) and the second beam body (32) are fixedly connected to the riser (1). The lower ends of the first beam body (31) and the second beam body (32) are fixedly connected by a support rod (2). The middle part of the first beam body (31) and the second beam body (32) both protrude upward and form a middle bend (5). A first connecting beam (6) is provided between the first beam body (31) and the second beam body (32). The two ends of the first connecting beam (6) are fixedly connected to the middle bend (5) of the first beam body (31) and the middle bend (5) of the second beam body (32), respectively. The front support beam (4) includes a lower left beam (41) and a lower right beam (42). The upper end of the lower left beam (41) is fixedly connected to the first beam body (31), and the upper end of the lower right beam (42) is fixedly connected to the second beam body (32). The lower ends of the lower left beam (41) and the lower right beam (42) are fixedly connected by connecting rods (7). The middle parts of the lower left beam (41) and the lower right beam (42) both bulge downwards and form a lower bend (8). A second connecting beam (9) is provided between the lower left beam (41) and the lower right beam (42). The second connecting beam (9) is located above the lower bend (8). A support plate (10) is also provided between the lower left beam (41) and the lower right beam (42). The two ends of the support plate (10) are fixedly connected to the second connecting beam (9) and the connecting rod (7) respectively. The shape of the support plate (10) is adapted to the shape of the lower left beam (41) and the lower right beam (42).

2. A motorcycle frame based on a high-strength design according to claim 1, characterized in that: A mounting chamber (11) for mounting an engine is formed between the main beam (3) and the front support beam (4). A first mounting seat (12) is provided on the first connecting beam (6) facing the mounting chamber (11). A first mounting hole (13) for positioning the upper end of the engine is provided through the first mounting seat (12). A second mounting seat (14) is provided on the connecting rod (7) facing the mounting chamber (11). A second mounting hole (15) for positioning the lower end of the engine is provided through the second mounting seat (14).

3. A motorcycle frame based on a high-strength design according to claim 1, characterized in that: The second connecting beam (9) has an upper mounting opening (16) facing the support plate (10). The upper end of the support plate (10) extends into the upper mounting opening (16), and the upper end of the support plate (10) is fixedly connected to the second connecting beam (9) by welding. The connecting rod (7) has a third mounting seat (17) facing the support plate (10). The two ends of the third mounting seat (17) are fixedly connected to the lower left beam (41) and the lower right beam (42) respectively. The side of the third mounting seat (17) has a lower mounting opening (18), and the lower end of the support plate (10) extends into the lower mounting opening (18), and the lower end of the support plate (10) is fixedly connected to the third mounting seat (17) by welding.

4. A motorcycle frame based on a high-strength design according to claim 3, characterized in that: The lower end of the upper mounting opening (16) and the upper end of the lower mounting opening (18) are both enlarged to form countersunk holes (19).

5. A motorcycle frame based on a high-strength design according to claim 1, characterized in that: It also includes a rear support beam (20), which includes a left upper beam (201) and a right upper beam (202). The upper ends of the left upper beam (201) and the right upper beam (202) are fixedly connected to the riser (1). The lower ends of the left upper beam (201) and the right upper beam (202) pass around the support member (2) from the outside and are fixedly connected to the connecting member (7). The middle part of the left upper beam (201) and the... The middle part of the upper right beam (202) protrudes upward and forms an upper bend (21). A third connecting beam (22) is provided between the upper left beam (201) and the upper right beam (202). The third connecting beam (22) is located above the upper bend (21). A fourth connecting beam (23) is provided between the upper left beam (201) and the upper right beam (202). The fourth connecting beam (23) is located below the upper bend (21).

6. A motorcycle frame based on a high-strength design according to claim 5, characterized in that: A reinforcing seat (24) is fixedly sleeved on the outer side of the support rod (2), and the reinforcing seat (24) is fixedly connected to the upper left beam (201) and the upper right beam (202).

7. A motorcycle frame based on a high-strength design according to claim 6, characterized in that: The reinforcing seat (24) is provided with a left mounting groove (25) for the left upper beam (201) to be placed in the left upper beam (201) and the reinforcing seat (24) is fixedly connected to the left upper beam (201) by welding. The reinforcing seat (24) is provided with a right mounting groove (26) for the right upper beam (202) to be placed in the right upper beam (202) and the reinforcing seat (24) is fixedly connected to the right upper beam (202) by welding.

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