Auxiliary frame assembly structure of two-wheeled motorcycle

Abstract

The utility model relates to an auxiliary frame assembly structure of a two-wheeled motorcycle and an assembling process of the auxiliary frame assembly structure, which belong to the technical field of auxiliary frames of two-wheeled motorcycles and comprise a left auxiliary frame and a right auxiliary frame which are connected with a main frame, and one end of the left auxiliary frame and one end of the right auxiliary frame which are close to the main frame are connected with an anti-torsion support. The torsion-resistant support is connected with the left auxiliary frame and the right auxiliary frame through threaded fasteners, the ends, away from the main frame, of the left auxiliary frame and the right auxiliary frame are connected with connecting supports, and the connecting supports are connected with the left auxiliary frame and the right auxiliary frame through threaded fasteners. The left auxiliary frame and the right auxiliary frame are made of aluminum alloy in a high-pressure casting mode, the vast majority of modeling requirements are met, cost is reduced, almost all tail parts are integrated on the left auxiliary frame and the right auxiliary frame, and the installation step can be achieved at a preassembling station; and a final assembly line only needs to complete connection and fixation of the main frame and the auxiliary frame assembly, so that the pressure of the production line is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a two-wheeled motorcycle auxiliary frame, in particular to an auxiliary frame assembly structure of a two-wheeled motorcycle. Background Art

[0002] A two-wheeled motorcycle is a motorcycle with two wheels, which is widely used for personal travel and cargo transportation. In China, two-wheeled motorcycles can be divided into light motorcycles and ordinary two-wheeled motorcycles according to the engine displacement and design speed, corresponding to Class F and Class E driver's licenses respectively. The engine displacement of a light motorcycle does not exceed 50 ml, and the maximum design speed does not exceed 50 km / h, while the displacement of an ordinary two-wheeled motorcycle is usually greater than 50 ml, and the maximum design speed exceeds 50 km / h.

[0003] Traditional two-wheeled motorcycles usually split the entire vehicle frame into two parts: the main frame and the subframe, so that the main frame can be used universally and the subframe can be changed according to different configurations. However, this method will inevitably lead to the increase of parts, complex installation, and cumbersome after-sales disassembly and assembly, which will affect the factory's production capacity and maintenance convenience, and even cause the disassembly and assembly labor costs to be greater than the parts replacement costs. At the same time, additional covers need to be added to cover the subframe, causing cost fluctuations; in addition, the subframe is prone to thermal deformation during welding, causing the installation point to be misaligned. Utility Model Content

[0004] In order to solve the problems in the above background technology that the subframe installation process is complicated and the additional covering parts are required, which leads to increased costs, the utility model provides the following technical solutions:

[0005] A two-wheeled motorcycle sub-frame assembly structure comprises a left sub-frame and a right sub-frame connected to the main frame, the left sub-frame and the right sub-frame being connected to an anti-torsion bracket at one end close to the main frame, the anti-torsion bracket and the left sub-frame and the right sub-frame being connected together by threaded fasteners, the left sub-frame and the right sub-frame being connected to one end away from the main frame being connected to a connecting bracket, the connecting bracket and the left sub-frame and the right sub-frame being connected together by threaded fasteners, a rear inner mud plate being provided at the bottom of the connecting bracket, the rear inner mud plate being installed between the left sub-frame and the right sub-frame, the rear inner mud plate being connected to the left sub-frame and the right sub-frame by threaded fasteners, a rear tail cover being installed at the top of the connecting bracket, a tail light being provided at one end of the bottom of the rear tail cover away from the main frame, the tail light being located at the rear inner mud plate and one end of the left sub-frame away from the main frame, a main beam plate being installed at the top of the rear tail cover, and a rear seat cushion being provided at the top of the main beam plate.

[0006] Furthermore, fasteners are passed through the main beam plate, the connecting bracket and the rear tail cover, and the main beam plate, the connecting bracket and the rear tail cover are connected together by the fasteners.

[0007] Furthermore, the left sub-frame and the right sub-frame are made of aluminum alloy, which can be formed by high-pressure casting, can meet most styling requirements, can be used as appearance parts, and reduce manufacturing costs.

[0008] Furthermore, the taillight and the rear inner fender are connected together by threaded fasteners.

[0009] Furthermore, the rear tail cover is buckled together with the rear inner mud plate, the left sub-frame and the right sub-frame.

[0010] Furthermore, a mounting hole is reserved at the top of the rear tail cover, and the fastener passes through the mounting hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The left and right sub-frames of the present invention are made of aluminum alloy and can be formed by high-pressure casting, which can meet most styling requirements and can be used as appearance parts to reduce manufacturing costs. Considering that the left and right sub-frames need to bear large axial torque during riding and steering, high requirements are placed on their strength. The connecting bracket and the anti-torsion bracket in the present invention can effectively transfer the above-mentioned torque deformation to the main frame.

[0013] 2. The left and right sub-frames of the present invention are integrally located at the rear of the vehicle. The weight of the front passengers is borne by the main frame, and the sub-frame assembly only needs to bear the weight of the rear passengers. In this utility model, the bottom of the rear seat cushion is almost completely in contact with the main beam plate, which can effectively reduce the pressure on the connecting bracket, and there is no need to have too high strength requirements for the left and right sub-frames, thereby avoiding cost waste.

[0014] 3. The tail parts of the utility model are almost all integrated into the left sub-frame and the right sub-frame. This installation step can be achieved at the pre-installation station; the final assembly line only needs to complete the connection and fixation of the main frame and the sub-frame assembly, which greatly reduces the pressure on the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the subframe assembly of a two-wheeled motorcycle of the utility model;

[0016] Figure 2 It is a schematic diagram of the fastener of the utility model penetrating the main beam plate, the rear tail cover, and the connecting bracket;

[0017] Figure 3 for Figure 1 Exploded view after removing the main frame;

[0018] Figure 4 It is a front view of the sub-frame assembly structure of a two-wheeled motorcycle of the utility model;

[0019] Figure 5 for Figure 4 Exploded view of;

[0020] Figure 6 It is a schematic diagram of the installation process of the utility model.

[0021] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0022] 1. Main frame; 2. Main beam plate; 3. Rear cushion; 4. Connecting bracket; 5. Rear tail cover; 6. Tail light; 7. Rear inner mud plate; 8. Anti-torsion bracket; 9. Left subframe; 10. Right subframe; 11. Fasteners. DETAILED DESCRIPTION

[0023] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0024] See also Figure 1-3 The utility model provides a sub-frame assembly structure of a two-wheeled motorcycle, including a left sub-frame 9 and a right sub-frame 10 connected to a main frame 1. The left sub-frame 9 and the right sub-frame 10 are made of aluminum alloy and can be formed by high-pressure casting, which can meet most of the modeling requirements. An anti-torsion bracket 8 is connected to the end of the left sub-frame 9 and the right sub-frame 10 close to the main frame 1. The anti-torsion bracket 8 is connected to the left sub-frame 9 and the right sub-frame 10 through threaded fasteners. A connecting bracket 4 is connected to the end of the left sub-frame 9 and the right sub-frame 10 away from the main frame 1. The connecting bracket 4 is connected to the left sub-frame 9 and the right sub-frame 10 through threaded fasteners. The connecting bracket 4 and the anti-torsion bracket 8 can transfer the torsional deformation borne by the left sub-frame 9 and the right sub-frame 10 during the steering process to the main frame 1.

[0025] A rear inner fender 7 is provided at the bottom of the connecting bracket 4, and the rear inner fender 7 is installed between the left sub-frame 9 and the right sub-frame 10. The rear inner fender 7 is connected to the left sub-frame 9 and the right sub-frame 10 through threaded fasteners. A rear tail cover 5 is installed on the top of the connecting bracket 4, and the rear tail cover 5 is snapped together with the rear inner fender 7, the left sub-frame 9 and the right sub-frame 10. A mounting hole is reserved at the top of the rear tail cover 5. A taillight 6 is provided at the end of the bottom of the rear tail cover 5 away from the main frame 1, and the taillight 6 is located at the end of the rear inner fender 7 and the left sub-frame 9 away from the main frame 1. A main beam plate 2 is installed on the top of the rear tail cover 5, and fasteners 11 are passed through between the main beam plate 2, the connecting bracket 4 and the rear tail cover 5. The fasteners 11 pass through the mounting holes, and the main beam plate 2, the connecting bracket 4 and the rear tail cover 5 are connected together by the fasteners 11.

[0026] A rear cushion 3 is provided on the top of the main beam plate 2, and the bottom of the rear cushion 3 is almost completely in contact with the main beam plate 2, which can effectively reduce the pressure on the connecting bracket 4, and it is not necessary to have too high strength requirements for the left subframe 9 and the right subframe 10, thereby avoiding cost waste.

[0027] like Figure 6 As shown, the utility model also includes an assembly process for assembling the above-mentioned two-wheeled motorcycle subframe assembly, and the specific steps are as follows:

[0028] Step 1: Install the connecting bracket 4 and the anti-torsion bracket 8 between the left sub-frame 9 and the right sub-frame 10, and connect the connecting bracket 4, the anti-torsion bracket 8, the left sub-frame 9 and the right sub-frame 10 together through threaded fasteners to form a preliminary positioning to facilitate the installation of subsequent components;

[0029] Step 2: Move upward from the bottom of the left subframe 9 and the right subframe 10 until the rear inner mud plate 7 coincides with the mounting points below the left subframe 9 and the right subframe 10, and then connect the rear inner mud plate 7, the left subframe 9 and the right subframe 10 together through threaded fasteners;

[0030] Step 3: Move the rear cover 5 downward from the top of the left sub-frame 9 and the right sub-frame 10 until the rear cover 5 is moved to a position that matches the mounting points on the left sub-frame 9 and the right sub-frame 10, and then buckle the rear cover 5 with the rear inner mud plate 7, the left sub-frame 9 and the right sub-frame 10 to form a whole. This step does not require the use of fasteners, which can reduce some assembly time.

[0031] Step 4: Push the taillight 6 forward from the rear of the left subframe 9 and the right subframe 10, move them to the predetermined position and connect them together through threaded fasteners. The rear tail cover 5 is provided with a limiting structure, which can achieve preliminary positioning without the need for employees to apply external force before tightening;

[0032] Step 5. Move the main beam plate 2 downward above the left subframe 9 and the right subframe 10. After the installation point of the main beam plate 2 matches the installation hole reserved on the rear tail cover 5, use the fasteners 11 to penetrate the main beam plate 2, the rear tail cover 5 and the connecting bracket 4, and fasten the main beam plate 2, the rear tail cover 5 and the connecting bracket 4 together to stably connect the three. The pre-installation of the two-wheeled motorcycle subframe assembly is completed.

[0033] During the above steps, each component only needs to complete one-dimensional translation in space to be placed in the specified position. Compared with traditional parts directly assembled into the whole vehicle, employees are required to complete multiple-dimensional rotation and translation. This can further reduce assembly time and reduce investment in employee training costs.

[0034] After the motorcycle subframe assembly is pre-assembled, Figure 4 and 5As shown, the motorcycle subframe assembly is pushed forward until the mounting points on the left subframe 9 and the right subframe 10 are fully matched with the main frame 1, and then fastened to complete the entire assembly process of the motorcycle subframe assembly.

[0035] Moreover, the utility model uses aluminum alloy as the material of the left sub-frame 9 and the right sub-frame 10, so that the left sub-frame 9 and the right sub-frame 10 can be used as appearance parts and load-bearing parts at the same time, connected by multiple brackets, and using it as the main frame, the various components are sequentially installed on the left sub-frame 9 and the right sub-frame 10, and finally only 4 threaded fasteners are needed to fix them with the main frame, so that the two can be stably connected. Compared with the sub-frame in the form of traditional steel pipe braiding, the overall rigidity and accuracy are better, which can greatly improve production efficiency, while reducing the number of components. Through actual cost accounting and installation testing, the cost is reduced by about 30%, and the assembly time is shortened by about 40%.

[0036] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A subframe assembly structure of a two-wheeled motorcycle, characterized in that: The invention comprises a left sub-frame (9) and a right sub-frame (10) connected to a main frame (1); the ends of the left sub-frame (9) and the right sub-frame (10) close to the main frame (1) are connected to a torsion-resistant bracket (8); the torsion-resistant bracket (8) and the left sub-frame (9) and the right sub-frame (10) are connected together by threaded fasteners; the ends of the left sub-frame (9) and the right sub-frame (10) away from the main frame (1) are connected to a connecting bracket (4); the connecting bracket (4) and the left sub-frame (9) and the right sub-frame (10) are connected together by threaded fasteners; the bottom of the connecting bracket (4) is provided with A rear inner mud plate (7) is provided, the rear inner mud plate (7) is installed between a left sub-frame (9) and a right sub-frame (10), the rear inner mud plate (7) and the left sub-frame (9) and the right sub-frame (10) are connected together by threaded fasteners, a rear tail cover (5) is installed on the top of the connecting bracket (4), a tail light (6) is provided at the bottom end of the rear tail cover (5) away from the main frame (1), the tail light (6) is located at the end of the rear inner mud plate (7) and the left sub-frame (9) away from the main frame (1), a main beam plate (2) is installed on the top of the rear tail cover (5), and a rear seat cushion (3) is provided on the top of the main beam plate (2).

2. The subframe assembly structure of a two-wheeled motorcycle according to claim 1, characterized in that: A fastener (11) passes through the main beam plate (2), the connecting bracket (4) and the rear tail cover (5), and the main beam plate (2), the connecting bracket (4) and the rear tail cover (5) are connected together by the fastener (11).

3. The subframe assembly structure of a two-wheeled motorcycle according to claim 1, characterized in that: The left auxiliary frame (9) and the right auxiliary frame (10) are made of aluminum alloy.

4. The subframe assembly structure of a two-wheeled motorcycle according to claim 1, characterized in that: The taillight (6) and the rear inner mud panel (7) are connected together via threaded fasteners.

5. The subframe assembly structure of a two-wheeled motorcycle according to claim 1, characterized in that: The rear tail cover (5) is buckled together with the rear inner mud plate (7), the left auxiliary frame (9) and the right auxiliary frame (10).

6. The subframe assembly structure of a two-wheeled motorcycle according to claim 2, characterized in that: A mounting hole is reserved at the top of the rear tail cover (5), and the fastener (11) passes through the mounting hole.

Images