Motorcycle frame and motorcycle

Abstract

The motorcycle frame is provided with an engine suspension assembly, the engine suspension assembly comprises an upper suspension plate, the upper end of the upper suspension plate is detachably and fixedly connected to the motorcycle frame, and the lower end of the upper suspension plate is used for installing an engine; according to the motorcycle frame, the upper suspension plate is detachably installed on the frame, maintenance and replacement can be facilitated, meanwhile, the upper suspension plate is arranged in a triangular mode, the transverse rigidity, the longitudinal rigidity and the torsional rigidity of the frame can be improved in cooperation with the upper suspension cross beam, vibration is reduced, and strength and riding comfort are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, in particular to a motorcycle frame and a motorcycle. Background Art

[0002] A motorcycle's top suspension is a suspension design in which the engine hanger is positioned above the engine. It plays a crucial role in the motorcycle suspension system, primarily serving to improve the vehicle's torsional rigidity and shock absorption. Top suspension is widely used on various motorcycle types, particularly those requiring high torsional rigidity and excellent shock absorption. A key advantage of the top suspension design is its high torsional rigidity, meaning the suspension system is better able to resist torsional forces from various directions during driving, thereby improving vehicle stability and excelling in absorbing road vibrations and shocks, providing greater ride comfort. The top suspension also effectively absorbs vibrations and shocks, resulting in less vibration and fatigue for the rider during long rides.

[0003] In the existing motorcycle frame upper suspension structure, the upper suspension beam and the upper suspension plate are mostly directly welded to the frame. After the upper suspension beam and the upper suspension plate are welded, when other accessories are assembled, the deformation of the upper suspension beam and the upper suspension plate caused by improper operation is uncontrollable and irreversible, the assembly stress is large, and reassembly is very difficult. The upper suspension directly welded to the frame has poor maintainability, limited maintenance space, difficulty in disassembling and assembling other parts, and low space utilization.

[0004] Therefore, there is an urgent need to develop a motorcycle frame that can improve the lateral, longitudinal and torsional stiffness of the frame, reduce vibration, improve strength and riding comfort, and enable the suspension components located above the engine to be detachably mounted on the frame for easy maintenance and replacement. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a motorcycle frame and motorcycle that can improve the frame's lateral, longitudinal, and torsional rigidity, reduce vibration, enhance strength and riding comfort, and enable the suspension assembly located above the engine to be detachably mounted on the frame for easy maintenance and replacement.

[0006] The motorcycle frame of the utility model is provided with an engine suspension assembly. The engine suspension assembly comprises an upper suspension plate. The upper end of the upper suspension plate is detachably fixedly connected to the frame, and the lower end is used for mounting the engine.

[0007] Furthermore, there are two upper suspension plates, which suspend the engine from both lateral sides of the engine respectively, and an upper suspension beam is fixedly connected between the two upper suspension plates.

[0008] Furthermore, the vehicle frame also includes two longitudinal beams, and the two suspension plates are installed corresponding to the two longitudinal beams respectively, and are used to support the upper suspension crossbeam between the two longitudinal beams.

[0009] Furthermore, the engine suspension assembly further includes a front suspension arm, and there are two front suspension arms, and the horizontal distance between the two front suspension arms is wider than the horizontal distance between the two upper suspension plates.

[0010] Furthermore, the front suspension arm is mounted on the front end of the motorcycle frame, and the front suspension arm extends obliquely rearward of the motorcycle frame for mounting the engine.

[0011] Furthermore, the upper suspension plate is provided with a mounting position I and a mounting position II, and a triangle layout is formed between the mounting position I and the mounting position II and the upper suspension plate body.

[0012] Furthermore, the installation position I is arranged above the installation position II, the installation position I and the installation position II are connected by a reinforcing rib I, and the installation position II and the upper suspension plate body are connected by a reinforcing rib II, forming a hollow triangular layout.

[0013] Furthermore, the mounting position I is aligned with the upper suspension plate body along the same axis.

[0014] Furthermore, a protrusion is provided on the upper suspension plate, and the protrusion is provided with a mounting position for mounting a windshield and the windshield is mounted through a supporting lug.

[0015] The utility model also provides a motorcycle, on which the above-mentioned vehicle body structure is installed.

[0016] Beneficial effects of the present invention: The motorcycle frame of the present invention has an upper suspension plate detachably mounted on the frame, which is convenient for maintenance and replacement. At the same time, the upper suspension plate adopts a triangular layout, which, together with the upper suspension crossbeam, can enhance the lateral, longitudinal and torsional stiffness of the frame, reduce vibration, and enhance strength and riding comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 Schematic diagram of the structure of the upper suspension plate;

[0021] Figure 4 Schematic diagram of the structure of the upper suspension beam;

[0022] Figure 5 Schematic diagram of the structure of the lug;

[0023] Figure 6 This is a schematic diagram of the electrical box installation. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] Figure 1 This is a schematic diagram of the structure of the utility model. Figure 2 This is a top view of the utility model. Figure 3 is the structural diagram of the upper suspension plate. Figure 4 This is a structural diagram of the upper suspension beam. Figure 5 This is a schematic diagram of the structure of the lug. Figure 6 This is a schematic diagram of the installation of the electrical box, as shown in the figure: the motorcycle frame of this embodiment, the motorcycle frame is provided with an engine suspension assembly, the engine suspension assembly includes an upper suspension plate 2, the upper end of the upper suspension plate 2 is detachably fixedly connected to the frame 1, and the lower end is used to install the engine; the upper suspension plate 2 is located at the upper part of the entire engine suspension assembly, for suspending the engine upward and being completely in an upward suspended state; the detachable fixed connection can facilitate the installation and disassembly of the upper suspension plate 2, making maintenance, repair or replacement easier, reducing maintenance costs and time, and improving production efficiency. There are various forms of detachable fixed connections, and the upper end of the upper suspension plate 2 can be detachably fixed to the frame 1 by bolt connection, screw connection, snap connection, etc., which will not be repeated here.

[0027] In this embodiment, there are two upper suspension plates 2, which suspend the engine from both lateral sides of the engine. An upper suspension beam 3 is fixedly connected between the two upper suspension plates 2. The fixed connection method can be welding, bolt connection, riveting, etc. This solution takes bolt connection as an example. Figure 4As shown, connecting pieces 101 are provided at both ends of the upper suspension beam 3, and a pair of strip bolt holes are symmetrically provided on the connecting piece 101. The upper suspension plate 2 is provided with a mounting position III 202 at the connection with the upper suspension beam 3. The mounting position III 202 cooperates with the strip bolt hole on the connecting piece 101. The upper suspension beam 3 is fixedly connected between the two upper suspension plates 2 by screwing in the bolts. The long strip shape of the strip bolt hole allows the bolt to have a certain lateral movement space in the hole. This design allows for lateral adjustment of components during installation, thereby eliminating left and right gaps and ensuring precise alignment of components. In the actual manufacturing and installation process, some errors are inevitable in parts. The strip bolt holes can absorb these errors, so that even in the presence of manufacturing or installation deviations, components can still be correctly installed and aligned; traditional circular bolt holes are prone to stress concentration when subjected to force, while the design of strip bolt holes can disperse stress and reduce stress concentration, thereby improving the stability and safety of the structure; the detachable fixed upper suspension plate 2 can provide greater assembly flexibility when frequent disassembly or adjustment is required, and the strip bolt holes make assembly and maintenance more convenient. The strip bolt holes effectively eliminate left and right gaps by providing lateral adjustment space, absorbing errors, reducing stress concentration and improving assembly flexibility, thereby ensuring precise alignment and stability of components.

[0028] In this embodiment, a mounting bracket 102 for mounting the electrical box 7 can be provided at the lower center of the upper suspension beam 3. The mounting bracket 102 is used to mount the electrical box 7 to the upper suspension beam 3 and securely connect the electrical box 7. The secure connection is the same as the optional method mentioned above and will not be described in detail here. The electrical box 7 can be equipped with multiple electrical components such as a battery, a flasher, a dump sensor, a starter relay, a fuel evaporation control assembly, and a charcoal canister, thereby improving the internal space utilization of the vehicle frame 1 and making the space layout of the entire vehicle frame 1 compact. The two upper suspension plates 2 are symmetrically arranged.

[0029] In this embodiment, the frame 1 also includes two longitudinal beams 4, and the two suspension plates are installed corresponding to the two longitudinal beams 4 respectively, and are used to support the upper suspension beam 3 between the two longitudinal beams 4; the upper suspension plates 2 suspend the engine from the lateral sides of the engine respectively. Since the weight of the engine itself is too large, only two upper suspension plates 2 installed on the longitudinal beams 4 are used to suspend the engine at the top, which will impose a load on the longitudinal beam 4. When the load exceeds the yield strength of the longitudinal beam 4, the longitudinal beam 4 will deform downward, which is not conducive to the overall structural stability of the frame 1; fixedly connecting the upper suspension beam 3 between the two upper suspension plates 2 helps to increase the overall stability and rigidity of the longitudinal beam 4 structure of the frame 1, and distributes the concentrated load generated by the suspended engine to a wider area, thereby reducing the load of a single support point and forming a stable frame. The upper suspension beam 3 can also be used to resist the bending of the longitudinal beam 4. When the engine is suspended by the upper suspension plate 2 and is subjected to a vertical load, the upper suspension beam 3 will generate a bending moment to resist the bending of the longitudinal beam 4, thereby reducing the deformation of the longitudinal beam 4 under the action of the load.

[0030] In this embodiment, the engine suspension assembly also includes a front suspension arm 5, and there are two front suspension arms 5. The horizontal spacing between the two front suspension arms 5 is wider than the horizontal spacing between the two upper suspension plates 2; the front suspension arm 5 is installed at the front end of the motorcycle frame, and the front suspension arm 5 extends obliquely rearward of the motorcycle frame for installing the engine; the horizontal spacing between the two front suspension arms 5 is wider than the horizontal spacing between the two upper suspension plates 2, which can enable the overall frame 1 structure to obtain a greater bearing capacity, and the two upper suspension plates 2 cooperate with the two front suspension arms 5 to install the engine, which can save the installation volume of the engine, provide the driver with more operating space, and enhance the driving experience; it can also reduce the generation of rollover torque, absorb and alleviate the impact and vibration caused by torque changes, improve the comfort and handling of the motorcycle, and maintain the stability and handling of the vehicle.

[0031] In this embodiment, the upper suspension plate 2 is provided with a mounting position I 201A and a mounting position II 201, and a triangular layout is formed between the mounting position I 201A and the mounting position II 201 and the main body of the upper suspension plate 2; the triangular layout can ensure that the mounting position I 201A, the mounting position II 201 and the main body of the upper suspension plate 2 remain stable, support each other and are not easily deformed. When the upper suspension plate 2 suspends the engine, the triangular layout can enable the upper suspension plate 2 to maintain structural stability under the load of the engine weight; the lower end of the upper suspension plate 2 is provided with a mounting position IV 203, and the upper suspension plate 2 installs the engine through the mounting position IV 203.

[0032] In this embodiment, the mounting position I 201A is arranged above the mounting position II 201, and the mounting position I 201A and the mounting position II 201 are connected by a reinforcing rib I 205, and the mounting position II 201 and the upper suspension plate body 207 are connected by a reinforcing rib II 206, forming a hollow triangular layout; the mounting position I 201A and the upper suspension plate body are aligned along the same axis; when the upper suspension plate 2 suspends the engine, the weight of the engine itself will apply a downward pulling force to the upper suspension plate 2, and the mounting position I 201A is arranged above the mounting position II 201, and the upper suspension plate body 207 will provide a pulling force to the mounting position I 201A, so that the entire steel component of the upper suspension plate 2 is pulled, thereby avoiding the formation of torque on the mounting position I 201A, thereby improving the overall structural strength of the upper suspension plate 2, and being able to It is more effective to provide tension to the installation position I201A, so that the entire upper suspension plate 2 is more easily pulled. The installation position I201A is arranged above the installation position II201, and can also reserve installation space for the upper suspension beam 3 above the installation position II201 to avoid interference between parts; the hollow triangular layout structure can significantly reduce the weight of the upper suspension plate 2 itself compared to the solid structure, and can further reduce the weight of the vehicle body. Reasonable wall thickness and structural design of the reinforcing ribs can maintain the required strength and rigidity of the upper suspension plate 2, and can save production costs and use less materials compared to the solid one; the installation position I201A is aligned with the upper suspension plate body along the same axis, which means that the installation position I201A is in the same straight line with the upper suspension plate body along the length direction of the upper suspension plate body.

[0033] In this embodiment, a protrusion 204 is provided on the upper suspension plate 2, and the protrusion 204 is provided with a mounting position for installing a windshield and the windshield is installed through the support ear 6; the support ear 6 is installed on the upper suspension plate 2 through the protrusion 204 on the upper suspension plate 2, avoiding the support ear 6 being directly welded to the frame 1 to install the windshield, thereby improving the appearance of the entire vehicle.

[0034] The utility model also provides a motorcycle, which is equipped with the above-mentioned motorcycle frame, and the upper suspension plate 2 is detachably mounted on the frame 1, which is convenient for maintenance and replacement. At the same time, the upper suspension plate 2 adopts a triangular layout, and cooperates with the upper suspension beam 3 to improve the lateral, longitudinal and torsional stiffness of the frame 1, reduce vibration, and improve strength and riding comfort.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A motorcycle frame, characterized in that: The motorcycle frame is provided with an engine suspension assembly, the engine suspension assembly comprising an upper suspension plate, the upper end of the upper suspension plate being detachably fixedly connected to the frame, and the lower end being used for mounting the engine; The engine suspension assembly further includes two front suspension arms, wherein the horizontal spacing between the two front suspension arms is wider than the horizontal spacing between the two upper suspension plates; The upper suspension plate is provided with a protrusion, the protrusion is provided with a mounting position for mounting a windshield and the windshield is mounted through a supporting lug.

2. The motorcycle frame according to claim 1, characterized in that: There are two upper suspension plates, which suspend the engine from both lateral sides of the engine respectively, and an upper suspension crossbeam is fixedly connected between the two upper suspension plates.

3. The motorcycle frame according to claim 2, characterized in that: The vehicle frame further comprises two longitudinal beams, and the two upper suspension plates are respectively installed corresponding to the two longitudinal beams, and are used to support the upper suspension cross beam between the two longitudinal beams.

4. The motorcycle frame according to claim 1, characterized in that: The front suspension arm is installed at the front end of the motorcycle frame, and the front suspension arm extends obliquely rearward of the motorcycle frame for installing the engine.

5. The motorcycle frame according to claim 3, characterized in that: The upper suspension plate is provided with a mounting position I and a mounting position II for mounting on the longitudinal beam, and a triangle layout is formed between the mounting position I and the mounting position II and the upper suspension plate body.

6. The motorcycle frame according to claim 5, characterized in that: The installation position I is arranged above the installation position II. The installation position I and the installation position II are connected by a reinforcing rib I, and the installation position II and the upper suspension plate body are connected by a reinforcing rib II, forming a hollow triangular layout.

7. The motorcycle frame according to claim 6, characterized in that: The mounting position I is aligned with the upper suspension plate body along the same axis.

8. A motorcycle, characterized in that: The motorcycle is mounted with a motorcycle frame as described in any one of claims 1 to 7.

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