Anti-vibration motorcycle frame

Abstract

The application relates to the technical field of motorcycle frames, and a shock-resistant motorcycle frame which comprises a main frame body and a fixing part, the fixing part is connected to the main frame body, the fixing part is provided with a fixing hole, and the fixing hole is used for allowing a bolt to pass through to realize fixed connection between the main frame body and a sub-frame. The fixing part is connected to the main frame body, the fixing part is provided with the fixing hole, the fixed connection between the main frame body and the sub-frame is realized by the bolt passing through the fixing hole, deformation of the sub-frame due to welding thermal stress is reduced, and the structural strength of the whole frame is improved.

Description

Technical Field

[0001] This application relates to the technical field of motorcycle frames, and in particular to a shock-resistant motorcycle frame. Background Technology

[0002] The frame is the basic load-bearing component of a motorcycle, playing a connecting and supporting role. The frame can organically connect the motorcycle engine, transmission, suspension, steering system, wheels, and body panels into a whole.

[0003] A motorcycle's frame consists of a main frame and a subframe. The main frame is used to connect to the engine and support the suspension structure, while the subframe extends from the main frame to support the driver, passenger seat, and some accessories (such as the battery and ignition computer).

[0004] Typically, a motorcycle frame is made by bending and welding tubing, with various connecting components welded onto the tubing for connecting different assemblies. In existing frames, the main frame and subframe are welded together, but welding thermal stress can cause the subframe to deform and change in size, affecting the overall assembly of the motorcycle. Utility Model Content

[0005] In order to reduce the deformation of the subframe caused by welding thermal stress and improve the overall structural strength of the frame, this application provides a shock-resistant motorcycle frame.

[0006] The shock-resistant motorcycle frame provided in this application adopts the following technical solution: An anti-vibration motorcycle frame includes a main frame body and a fixing part. The fixing part is connected to the main frame body and has fixing holes for bolts to pass through to achieve a fixed connection between the main frame body and the subframe.

[0007] By adopting the above technical solution, the fixing part is connected to the main frame body. The fixing part is provided with fixing holes. The fixing connection between the main frame body and the subframe is achieved by bolts passing through the fixing holes, which reduces the deformation of the subframe caused by welding thermal stress and improves the overall structural strength of the frame.

[0008] Preferably, the main frame body includes a head tube, a main beam tube, a sub-beam tube, a first connecting tube, and a connecting frame. One end of the main beam tube is connected to the outer wall of the head tube, and the other end of the main beam tube is connected to the outer wall of the first connecting tube. The axis of the first connecting tube is perpendicular to the axis of the head tube. There are two main beam tubes, which are symmetrically distributed along the axis of the first connecting tube. There are four fixing parts, which are divided into two groups. The two groups of fixing parts correspond to two main beam tubes respectively. The two fixing parts in the same group are spaced apart along the length of the main beam tube. One end of the sub-beam tube is connected to the outer wall of the head tube, and the other end of the sub-beam tube is used to connect to the outer wall of the engine. The number of sub-beam tubes is the same as the number of main beam tubes and they correspond one-to-one. The two sub-beam tubes are located below the two main beam tubes respectively. The connecting frame is connected to the outer wall of the first connecting tube and is located below the first connecting tube.

[0009] By adopting the above technical solution, the sub-beam tube and connecting frame are used to connect to the outer wall of the engine, so that the engine and the main frame body are matched, thereby improving the structural strength of the main frame body, reducing the possibility of deformation of the main frame body under external force, and improving the service life of the main frame body.

[0010] Preferably, the main frame body further includes reinforcing tubes, and there are several reinforcing tubes. The several reinforcing tubes are divided into two groups, and the two groups of reinforcing tubes correspond to two main beam tubes respectively. The two ends of the reinforcing tubes are respectively connected to the outer walls of the main beam tube and the sub-beam tube.

[0011] By adopting the above technical solution, the two ends of the reinforcing tube are respectively connected to the main beam tube and the sub-beam tube, which improves the stability of the connection between the main beam tube, the sub-beam tube and the head tube, and improves the structural strength of the main frame body.

[0012] Preferably, there are four reinforcing tubes, and the ends of two reinforcing tubes in the same group that are closer to the sub-beam tube are inclined toward the side that is closer to the other reinforcing tube.

[0013] By adopting the above technical solution, the two reinforcing tubes in the same group are set to taper on the side closest to the sub-beam tube, so that the two reinforcing tubes, the main beam tube and the sub-beam tube form a triangular structure, which helps to improve the stability of the connection between the main beam tube, the sub-beam tube and the head tube, and improve the structural strength of the main frame body.

[0014] Preferably, the end of the fixing part near the main beam tube is connected to a welding part, the welding part is arc-shaped, and the side of the welding part away from the fixing part is in contact with the outer wall of the main beam tube.

[0015] By adopting the above technical solution, a welding part is connected to one end of the fixing part near the main beam tube. The welding part is arc-shaped, and the inner wall of the welding part is in contact with the outer wall of the main beam tube, which increases the contact area between the fixing part and the main beam tube. This helps to extend the length of the weld between the fixing part and the main beam tube, improves the stability of the connection between the fixing part and the main frame body, and improves the stability of the connection between the main frame body and the subframe.

[0016] Preferably, both the fixing part and the welding part are made of Q550 steel.

[0017] By adopting the above technical solutions, Q550 steel has higher toughness and tensile strength under the same conditions, which helps to strengthen the structure of the fixed part and the welded part, reduces the possibility of the fixed part and the welded part being broken by the outer wall, and improves the stability of the connection between the main frame body and the subframe.

[0018] Preferably, a reinforcing rib is provided between the fixing part and the welding part.

[0019] By adopting the above technical solution, the reinforcing rib helps to improve the structural strength between the fixed part and the welded part, reduce the possibility of the connection between the fixed part and the welded part being broken by the outer wall, and improve the stability of the connection between the main frame body and the subframe.

[0020] Preferably, the main frame body further includes a first horizontal tube and a second horizontal tube, the two ends of the first horizontal tube being connected to the outer walls of two main beam tubes respectively, and the two ends of the second horizontal tube being connected to the outer walls of two secondary beam tubes respectively.

[0021] By adopting the above technical solution, the first horizontal tube connects to the outer wall of the two main beam tubes, forming a triangular structure between the first horizontal tube and the two main beam tubes. The second horizontal tube connects to the outer wall of the two secondary beam tubes, forming a triangular structure between the second horizontal tube and the two secondary beam tubes, thereby improving the structural strength of the main frame body.

[0022] Preferably, the main frame body further includes a first reinforcing plate, which is connected to the outer wall of the two main beam tubes, and the end of the first reinforcing plate near the head tube is in contact with the outer wall of the head tube.

[0023] By adopting the above technical solution, the first reinforcing plate is connected to the two main beam tubes and fits against the outer wall of the head tube, which improves the stability of the connection between the main beam tube and the head tube and improves the structural strength of the main frame body.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The fixing part is connected to the main frame body. The fixing part is provided with fixing holes. The fixing connection between the main frame body and the subframe is achieved by bolts passing through the fixing holes, which reduces the deformation of the subframe due to welding thermal stress and improves the overall structural strength of the frame. 2. Q550 steel has high toughness and tensile strength under the same conditions, which helps to strengthen the structure of the fixed parts and welded parts, reduces the possibility of the fixed parts and welded parts being broken by the outer wall, and improves the stability of the connection between the main frame body and the subframe. 3. Reinforcing ribs help improve the structural strength between the fixed parts and the welded parts, reduce the possibility of fracture at the connection between the fixed parts and the welded parts due to the outer wall, and improve the stability of the connection between the main frame body and the subframe. Attached Figure Description

[0025] Figure 1 This is a structural diagram of an anti-vibration motorcycle frame.

[0026] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0027] Explanation of reference numerals in the attached figures: 1. Main frame body; 11. Head tube; 12. Main beam tube; 13. Sub-beam tube; 14. First connecting tube; 15. Connecting frame; 16. Reinforcing tube; 17. First transverse tube; 18. Second transverse tube; 19. First reinforcing plate; 110. Second connecting plate; 111. Engine mounting plate; 112. Second connecting tube; 113. Third connecting tube; 2. Mounting base; 21. Fixing part; 211. Fixing hole; 22. Welding part; 23. Reinforcing rib. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] Reference Figure 1 This application discloses an anti-vibration motorcycle frame including a main frame body 1. The main frame body 1 includes a head tube 11, a main beam tube 12, a first connecting tube 14, and a secondary beam tube 13. One end of the main beam tube 12 is fixedly connected to the outer wall of the first connecting tube 14, and the axis of the first connecting tube 14 is horizontally arranged. The other end of the main beam tube 12 is fixedly connected to the outer wall of the head tube 11, and the axis of the head tube 11 is perpendicular to the axis of the first connecting tube 14. There are two main beam tubes 12, which are symmetrically distributed along the axis of the first connecting tube 14. The main beam tubes 12 are bent, and the ends of the two main beam tubes 12 near the head tube 11 are bent in a direction that brings them closer to each other. One end of the sub-beam tube 13 is fixedly connected to the outer wall of the head tube 11, and the other end of the sub-beam tube 13 is inclined away from the main beam tube 12. The other end of the sub-beam tube 13 is used to connect to the outer wall of the engine. The number of sub-beam tubes 13 is the same as the number of main beam tubes 12 and they correspond one-to-one. The two sub-beam tubes 13 are located below the two main beam tubes 12 respectively. The sub-beam tubes 13 are bent, and the ends of the two sub-beam tubes 13 near the head tube 11 are bent in a direction that brings them closer to each other.

[0030] The main frame body 1 also includes a first reinforcing plate 19, a first horizontal tube 17, and a second horizontal tube 18. The first reinforcing plate 19 is fixedly connected to the outer wall of the two main beam tubes 12 on the side away from the sub-beam tubes 13. The first reinforcing plate 19 is located on the side of the main beam tube 12 near the head tube 11, and the side wall of the first reinforcing plate 19 is in contact with the outer wall of the head tube 11. The two ends of the first horizontal tube 17 are respectively fixedly connected to the outer walls of the two main beam tubes 12. The axis of the first horizontal tube 17 is parallel to the axis of the first connecting tube 14, and the first horizontal tube 17 is located on the side of the main beam tube 12 near the head tube 11. The two ends of the second horizontal tube 18 are respectively fixedly connected to the outer walls of the two sub-beam tubes 13. The axis of the second horizontal tube 18 is parallel to the axis of the first horizontal tube 17, and the second horizontal tube 18 is located on the side of the sub-beam tube 13 near the head tube 11.

[0031] The main frame body 1 also includes reinforcing tubes 16, of which several are provided. These reinforcing tubes 16 are divided into two groups, each group corresponding to one of the two main beam tubes 12. The two ends of each reinforcing tube 16 are fixedly connected to the outer walls of the main beam tube 12 and the secondary beam tube 13, respectively. In this embodiment, four reinforcing tubes 16 are provided, with two reinforcing tubes 16 in the same group spaced apart along the length of the main beam tube 12. The ends of the two reinforcing tubes 16 in the same group closest to the secondary beam tube 13 are inclined towards the side closest to the other reinforcing tube 16 in the same group.

[0032] Reference Figure 1 and Figure 2 An anti-vibration motorcycle frame also includes mounting seats 2, located on the side of the main beam tube 12 away from the sub-beam tube 13. Four mounting seats 2 are provided, divided into two groups, each group corresponding to two main beam tubes 12. Two mounting seats 2 in the same group are spaced apart along the length of the main beam tube 12. In this embodiment, the mounting seats 2 are made of Q550 steel and undergo heat treatment, including carburizing and quenching. Each mounting seat 2 includes a welding part 22 and a fixing part 21. The welding part 22 is arc-shaped, with its inner wall fitting against the outer wall of the main beam tube 12. One end of the fixing part 21 is fixedly connected to the outer wall of the welding part 22. The fixing part 21 has a fixing hole 211 for bolts to pass through, thus achieving a fixed connection between the main frame body 1 and the sub-frame. Reinforcing ribs 23 are fixedly connected between the welding parts 22, extending from the surface of the welding part 22 near the other group of mounting seats 2 to the outer wall of the welding part 22.

[0033] The main frame body 1 also includes a connecting frame 15, a second connecting plate 110, and an engine mounting plate 111. The connecting frame 15 is fixedly connected to the outer wall of the first connecting pipe 14, and is located on the side of the first connecting pipe 14 away from the main beam pipe 12, and is located below the first connecting pipe 14. The engine mounting plate 111 is fixedly connected to the surface of the connecting frame 15 near the sub-beam pipe 13, and extends from the connecting frame 15 to the outer wall of the first connecting pipe 14. There are two engine mounting plates 111, which are symmetrically distributed along the axis of the first connecting pipe 14. The second connecting plate 110 is fixedly connected to the outer wall of the connecting frame 15 on the side away from the engine mounting plate 111, and the number of second connecting plates 110 is the same as the number of engine mounting plates 111 and they correspond one-to-one.

[0034] The main frame body 1 also includes a second connecting pipe 112 and a third connecting pipe 113. The second connecting pipe 112 is fixedly connected to the end of the connecting frame 15 away from the first connecting pipe 14, and the axis of the second connecting pipe 112 is parallel to the axis of the first connecting pipe 14. The two ends of the third connecting pipe 113 are fixedly connected to two engine mounting plates 111 respectively, and the axis of the third connecting pipe 113 is parallel to the axis of the first connecting pipe 14.

[0035] The implementation principle of an anti-vibration motorcycle frame according to an embodiment of this application is as follows: the welded part 22 is attached to the outer wall of the main beam tube 12 and then welded to improve the structural strength of the connection between the mounting seat 2 and the main beam tube 12, thereby improving the stability of the connection between the main frame body 1 and the sub-frame. The end of the sub-beam tube 13 away from the head tube 11 and the engine mounting plate 111 are fixedly connected to the engine, thereby improving the stability between the sub-beam tube 13 and the connecting frame 15.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A shock-resistant motorcycle frame, characterized in that: It includes a main frame body (1) and a fixing part (21); the fixing part (21) is connected to the main frame body (1); the fixing part (21) is provided with a fixing hole (211); the fixing hole (211) is used for bolts to pass through to realize the fixed connection between the main frame body (1) and the subframe; The main frame body (1) includes a head tube (11), a main beam tube (12), a secondary beam tube (13), a first connecting tube (14), and a connecting frame (15); one end of the main beam tube (12) is connected to the outer wall of the head tube (11); the other end of the main beam tube (12) is connected to the outer wall of the first connecting tube (14); the axis of the first connecting tube (14) is perpendicular to the axis of the head tube (11); there are two main beam tubes (12); the two main beam tubes (12) are symmetrically distributed along the axis of the first connecting tube (14); there are four fixing parts (21); the four fixing parts (21) are divided into two groups; The two sets of fixing parts (21) correspond to two main beam tubes (12) respectively; the two fixing parts (21) in the same set are distributed at intervals along the length of the main beam tube (12); one end of the sub-beam tube (13) is connected to the outer wall of the head tube (11); the other end of the sub-beam tube (13) is used to connect to the outer wall of the engine; the number of sub-beam tubes (13) is the same as the number of main beam tubes (12) and they correspond one-to-one; the two sub-beam tubes (13) are located below the two main beam tubes (12) respectively; the connecting frame (15) is connected to the outer wall of the first connecting tube (14); the connecting frame (15) is located below the first connecting tube (14).

2. The shock-resistant motorcycle frame according to claim 1, characterized in that: The main frame body (1) also includes a reinforcing tube (16); there are several reinforcing tubes (16); the several reinforcing tubes (16) are divided into two groups; the two groups of reinforcing tubes (16) correspond to two main beam tubes (12) respectively; the two ends of the reinforcing tubes (16) are respectively connected to the outer walls of the main beam tube (12) and the secondary beam tube (13).

3. The shock-resistant motorcycle frame according to claim 2, characterized in that: The reinforcing tube (16) is provided in four parts; the two reinforcing tubes (16) in the same group are inclined at one end near the sub-beam tube (13) towards the other reinforcing tube (16).

4. The shock-resistant motorcycle frame according to claim 1, characterized in that: The fixing part (21) is connected to a welding part (22) at one end near the main beam tube (12); the welding part (22) is arc-shaped; the side of the welding part (22) away from the fixing part (21) is in contact with the outer wall of the main beam tube (12).

5. The shock-resistant motorcycle frame according to claim 4, characterized in that: Both the fixing part (21) and the welding part (22) are made of Q550 steel.

6. The shock-resistant motorcycle frame according to claim 4, characterized in that: A reinforcing rib (23) is connected between the fixing part (21) and the welding part (22).

7. The shock-resistant motorcycle frame according to claim 1, characterized in that: The main frame body (1) also includes a first horizontal tube (17) and a second horizontal tube (18); the two ends of the first horizontal tube (17) are respectively connected to the outer walls of two main beam tubes (12); the two ends of the second horizontal tube (18) are respectively connected to the outer walls of two secondary beam tubes (13).

8. The shock-resistant motorcycle frame according to claim 1, characterized in that: The main frame body (1) also includes a first reinforcing plate (19); the first reinforcing plate (19) is connected to the outer wall of the two main beam tubes (12); the end of the first reinforcing plate (19) near the head tube (11) is in contact with the outer wall of the head tube (11).

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