A motorcycle cradle structure

Abstract

The utility model relates to the technical field of motorcycle accessories, specifically relates to a motorcycle cradle structure, including rocker, triangular connecting body, three first bearings and second bearing, three first bearings are connected with triangular connecting body dismantling respectively, second bearing is connected with rocker dismantling, the rocker has the mounting hole, when assembling, the shaft body is from one end and penetrates the mounting hole of rocker, and is connected with the inner ring of first bearing on the triangular connecting body tight cooperation, thereby make the shaft body, rocker and triangular connecting body realize reliable rotation cooperation through first bearing, finally constitute a complete and can effectively transmit and buffer impact force motorcycle multi-connecting rod type cradle structure, can very good bear the impact force when jumping and landing of motorcycle movement, help rear shock absorber share a part of the kinetic energy released downward, solve the problem of insufficient buffering performance and structure fatigue fracture when the high strength and high frequency impact of traditional structure through such mode.

Description

Technical Field

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

[0002] The motorcycle swingarm is a key component connecting the frame, rear swingarm, and suspension system. Its core function is to transmit and cushion the impact loads borne by the rear wheel during vehicle operation. In extreme conditions such as motorcycle racing, vehicles often face the enormous challenges of high-speed takeoffs and violent landings. In these situations, the impact force is concentrated on the frame and suspension system through the rear swingarm.

[0003] Traditional cradle structures suffer from insufficient cushioning performance, structural fatigue, or excessive weight when dealing with such high-intensity, high-frequency impacts. This not only affects the maximization of the shock absorption system's effectiveness but may also adversely impact the vehicle's handling agility and overall structural lifespan.

[0004] Therefore, there is an urgent need to provide a cradle structure that is lightweight, highly rigid, and can actively share and release impact kinetic energy. Utility Model Content

[0005] The purpose of this utility model is to provide a motorcycle cradle structure that solves the problems of insufficient buffering performance, easy structural fatigue, or excessive weight of traditional cradle structures in the prior art when dealing with such high-intensity, high-frequency impacts. This not only affects the maximization of the shock absorption system's efficiency, but may also have an adverse impact on the vehicle's handling sensitivity and overall structural lifespan.

[0006] To achieve the above objectives, this utility model provides a motorcycle rocker arm structure, including a rocker arm, a triangular connector, three first bearings and a second bearing. The triangular connector is rotatably disposed on the outer side wall of the triangular connector. The three first bearings are detachably connected to the triangular connector. The second bearings are detachably connected to the rocker arm and are located on the inner side wall of the rocker arm. The rocker arm has mounting holes.

[0007] The rocker arm has a first arc-shaped chamfer.

[0008] The triangular connector has a process groove.

[0009] The rocker arm has a second arc-shaped chamfer.

[0010] This utility model discloses a motorcycle rocker arm structure. During assembly, the shaft passes through the mounting hole of the rocker arm from one end and is tightly connected to the inner ring of the first bearing mounted on the triangular connector. This allows the shaft, the rocker arm, and the triangular connector to achieve reliable rotational engagement through the first bearing, ultimately forming a complete multi-link rocker arm structure that can effectively transmit and buffer impact forces. The second bearing is used for shock absorber mounting. The rocker arm and the triangular connector are both made of aluminum alloy, achieving lightweight construction and effectively withstanding the impact forces during motorcycle takeoff and landing. This helps the rear shock absorber share some of the downward kinetic energy released. In this way, the problem of insufficient buffering performance and easy fatigue fracture of traditional structures under high-strength and high-frequency impacts is solved. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the motorcycle cradle structure of this utility model.

[0013] Figure 2 This is the utility model Figure 1 Top view.

[0014] Figure 3 This is the utility model Figure 1 A bottom view.

[0015] Figure 4 This is the utility model Figure 1 The left view.

[0016] Figure 5 This is the utility model Figure 1 The right view.

[0017] 101-rocker arm, 102-triangular connector, 103-first bearing, 104-second bearing, 105-mounting hole, 106-first arc-shaped chamfer, 107-process groove, 108-second arc-shaped chamfer. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1-5 , Figure 1 This is a schematic diagram of the motorcycle cradle structure of this utility model. Figure 2 This is the utility model Figure 1 Top view, Figure 3 This is the utility model Figure 1 The bottom view, Figure 4 This is the utility model Figure 1 Left view, Figure 5 This is the utility model Figure 1 The right view.

[0020] This utility model provides a motorcycle rocker arm structure, including a rocker arm 101, a triangular connector 102, three first bearings 103 and a second bearing 104. The rocker arm 101 has a mounting hole 105 and a first arc-shaped chamfer 106. The triangular connector 102 has a process groove 107 and a second arc-shaped chamfer 108.

[0021] The triangular connector 102 is rotatably disposed on the outer side wall of the triangular connector 102. The three first bearings 103 are detachably connected to the triangular connector 102 respectively. The second bearing 104 is detachably connected to the rocker arm 101 and is located on the inner side wall of the rocker arm 101. The rocker arm 101 has a mounting hole 105.

[0022] In this embodiment, during assembly, the shaft passes through the mounting hole 105 of the rocker arm 101 from one end and is tightly connected to the inner ring of the first bearing 103 on the triangular connector 102. This allows the shaft, the rocker arm 101, and the triangular connector 102 to achieve reliable rotational engagement through the first bearing 103, ultimately forming a complete multi-link rocker arm structure for motorcycles that can effectively transmit and buffer impact forces. The second bearing 104 is used for shock absorber installation. The rocker arm 101 and the triangular connector 102 are both made of aluminum alloy, achieving lightweight design and effectively withstanding the impact forces during motorcycle take-off and landing. This helps the rear shock absorber share some of the downward kinetic energy released. In this way, the problems of insufficient buffering performance and easy fatigue fracture of traditional structures under high-intensity and high-frequency impacts are solved.

[0023] Furthermore, the rocker arm 101 has a first arc-shaped chamfer 106.

[0024] In this embodiment, the first arc-shaped chamfer 106 can effectively avoid the risk of scratches during assembly and improve operational safety; it also makes it easier for parts to be aligned during installation and smoothly enter the mating position, significantly improving assembly efficiency and accuracy. At the same time, the chamfer can eliminate stress concentration, enhance the fatigue strength of parts, and improve the overall structural reliability and service life of the product. It is a key detail to ensure process quality and performance.

[0025] Furthermore, the triangular connector 102 has a process groove 107.

[0026] In this embodiment, the process groove 107 is used to reduce weight and also plays a role in dispersing stress and preventing cracks. In addition, it provides convenience for positioning and locking during the assembly process, significantly improving the accuracy and efficiency of installation.

[0027] Furthermore, the rocker arm 101 has a second arc-shaped chamfer 108.

[0028] In this embodiment, the second arc-shaped chamfer 108 can effectively avoid the risk of scratches during assembly and improve operational safety; it also makes it easier for parts to be aligned during installation and smoothly enter the mating position, significantly improving assembly efficiency and accuracy. At the same time, the chamfer can eliminate stress concentration, enhance the fatigue strength of parts, and improve the overall structural reliability and service life of the product. It is a key detail to ensure process quality and performance.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A motorcycle cradle structure, characterized in that, The device includes a rocker arm, a triangular connector, three first bearings, and a second bearing. The triangular connector is rotatably mounted on the outer wall of the rocker arm. The three first bearings are detachably connected to the triangular connector. The second bearings are detachably connected to the rocker arm and are located on the inner wall of the rocker arm. The rocker arm has mounting holes.

2. The motorcycle cradle structure as described in claim 1, characterized in that, The rocker arm has a first arc-shaped chamfer.

3. The motorcycle cradle structure as described in claim 2, characterized in that, The triangular connector has a process groove.

4. The motorcycle cradle structure as described in claim 3, characterized in that, The rocker arm has a second arc-shaped chamfer.

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