Compact assembly structure of single-rocker-arm rear fork and chassis
Through the compact assembly structure of the rear flat fork of a single swingarm and the chassis, the complexity and high cost of the double swingarm structure are solved, and the compact assembly and simplified maintenance of motorcycle parts are realized, reducing the weight and production costs of the whole vehicle.
Patent Information
- Application Number
- CN202422427608.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The double rocker structure fixed at both ends of the motor shaft in existing motorcycles results in numerous parts, complicated assembly, difficult maintenance and high cost.
A compact assembly structure with a single rocker rear flat fork and the chassis is adopted, including a single rocker rear flat fork and the chassis of the vehicle body, the motor shaft is fixed through motor bushings and pin keys, and a reinforcement structure is added to the key connection to simplify assembly.
It realizes the compactness of the assembly structure, reduces parts, reduces weight and costs, improves vehicle energy efficiency, and simplifies maintenance process.
Smart Images
Figure CN223072663U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motorcycle parts, in particular to a compact assembly structure of a single swing arm rear swingarm and a chassis. Background Art
[0002] In the existing motorcycle technology, the motor shaft usually adopts a design with both ends fixed, and this design is often combined with a double swing arm structure to support and drive the rear wheel. However, this double swing arm structure is accompanied by more components, which leads to the complexity and redundancy of the connection structure.
[0003] Due to the large number of components, the assembly process of the double swing arm structure becomes quite cumbersome, and the daily maintenance process is also relatively difficult and time-consuming; at the same time, the complexity of the structure also leads to an increase in manufacturing costs.
[0004] On this basis, it is urgent to develop a compact assembly structure of a single swing arm rear swingarm and a chassis. Content of the Utility Model
[0005] The applicant of the present utility model aims at the above-mentioned shortcomings in the existing production technology, and provides a compact assembly structure of a single swing arm rear swingarm and a chassis, so that the overall assembly structure is compact, the cost can be saved during the production and manufacturing process, and it is also beneficial to reduce the weight of the whole vehicle and improve the energy efficiency of the vehicle.
[0006] The technical solution adopted by the present utility model is as follows: a compact assembly structure of a single swing arm rear swingarm and a chassis, including a single swing arm rear swingarm, and the single swing arm rear swingarm is connected to the chassis of the vehicle body; the single swing arm rear swingarm includes a swingarm head tube and a left tube, and a rear shock absorber hanger bracket for assembling with a rear shock absorber is arranged at the top of the left tube, and a motor bushing for assembling with the motor shaft of the motor is arranged on the left tube; a disc brake disc is installed on the end face of the motor, and the disc brake disc is arranged on a disc brake mounting bracket; the motor and the tire are assembled on the rear wheel hub, and after assembly, a key is placed at the keyway position of the motor shaft pin, and is pressed and fixed from the motor bushing of the single swing arm rear swingarm.
[0007] As a further improvement of the above technical solution:
[0008] Preferably, one end of the disc brake mounting bracket passes through the motor shaft, and the other end passes through a disc brake limit post on the left tube and is fixed.
[0009] Preferably, after the motor shaft of the motor is pressed and fitted in place in the motor bushing, it is tightened and fixed by a spring washer and a lock nut.
[0010] Preferably, the rear shock absorber hanger bracket is connected to the bottom of the rear shock absorber, and a buffer sleeve is also installed at the assembly position of the rear shock absorber hanger bracket and the rear shock absorber;
[0011] More preferably, a reinforcing plate for the hanger bracket is additionally provided at the contact end between the rear shock absorber hanger bracket and the left pipe.
[0012] Preferably, a reinforcing diagonal brace is additionally provided between the flat fork head pipe and the left pipe, and the reinforcing diagonal brace is used to strengthen the structure between the flat fork head pipe and the left pipe.
[0013] Preferably, main bracket mounting brackets are arranged at both sides of the flat fork head pipe, main bracket limiting pipes are arranged at intervals between the main bracket mounting brackets on both sides, and a main bracket limiting plate is arranged in the middle of the main bracket limiting pipes;
[0014] More preferably, a reinforcing plate for the flat fork head pipe is additionally provided at the contact end between the main bracket limiting pipe and the main bracket limiting plate and the flat fork head pipe.
[0015] Preferably, both ends of the flat fork head pipe are inserted into the rear flat fork mounting plate of the vehicle frame and fastened by a mounting shaft and bolts.
[0016] The beneficial effects of the present utility model are as follows:
[0017] The overall structure of the present utility model is compact and convenient for assembly. By adopting a single swing arm assembly structure to replace the double swing arm structure, one shock absorber and corresponding structural parts are reduced, the structural space of the whole vehicle can be saved, the assembly structure is more compact, and it is also beneficial to reduce the weight of the whole vehicle and improve the energy efficiency of the vehicle.
[0018] The present utility model further includes the following advantages:
[0019] (1) The present utility model adopts a single swing arm assembly structure, with relatively few components, which can reduce the component cost; at the same time, the disassembly and assembly structure is relatively simple, which is beneficial to the maintenance and repair of removing the tire in the later stage and reduces the after-sales cost;
[0020] (2) The single swing arm rear flat fork of the present utility model fixes the motor by means of a key and pin fit, which can prevent the motor shaft from rotating in the rear flat fork. Description of the Drawings
[0021] Figure 1 is a perspective view of the single swing arm rear flat fork structure of the present utility model.
[0022] Figure 2 is Figure 1 a schematic left view of the single swing arm rear flat fork in
[0023] Figure 3 is a front view of the assembly structure of the single swing arm rear flat fork and the chassis in the present utility model.
[0024] Figure 4 is Figure 3 a top view of
[0025] Figure 5This is a schematic cross-sectional view of the assembly structure of the single swingarm rear swingarm and the chassis in the present utility model.
[0026] Among them: 1. Single swingarm rear swingarm; 2. Rear shock absorber; 3. Buffer sleeve; 4. Disc brake mounting bracket; 5. Spring washer; 6. Locking nut; 7. Motor; 8. Disc brake disc; 9. Tire; 10. Rear hub; 11. Key.
[0027] 101. Swingarm head tube; 102. Left tube; 103. Reinforcing diagonal brace; 104. Main bracket mounting bracket; 105. Main bracket limit tube; 106. Main bracket limit plate; 107. Rear shock absorber hanger bracket; 108. Hanger bracket reinforcement plate; 109. Motor bushing; 110. Disc brake limit post; 111. Swingarm head tube reinforcement plate. Specific embodiments
[0028] The following will describe the specific embodiments of the present utility model in conjunction with the accompanying drawings.
[0029] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively with reference to the relevant accompanying drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0031] In the case of using "including", "having", and "comprising" described herein, unless a clear limiting term is used, such as "only", "consisting of", etc., another component can also be added. Unless otherwise mentioned, terms in the singular form can include the plural form and should not be construed as having a quantity of one.
[0032] It should be understood that although terms such as "first" and "second" can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present utility model, the first element can be called the second element, and similarly, the second element can be called the first element.
[0033] In addition, the attached drawings are not drawn to a scale of 1:1, and the relative dimensions of the components are only drawn by way of example in the attached drawings and not necessarily to the true scale.
[0034] As Figures 1 to 5 , a schematic state diagram of a compact assembly structure of a single swing arm rear swingarm and a chassis in an embodiment of the present utility model is shown; for ease of description, the attached drawings only show the structures related to the embodiments of the present utility model.
[0035] The compact assembly structure of the single swing arm rear swingarm and the chassis in this embodiment includes a single swing arm rear swingarm 1, and the single swing arm rear swingarm 1 is connected to the chassis of the vehicle body; the single swing arm rear swingarm 1 includes a swingarm head tube 101 and a left tube 102. At the top of the left tube 102, there is a rear shock absorber hanger bracket 107 assembled with the rear shock absorber 2, and on the left tube 102, there is a motor bushing 109 assembled with the motor shaft of the motor 7; a disc brake disc 8 is installed on the end face of the motor 7, and the disc brake disc 8 is arranged on a disc brake mounting bracket 4; the motor 7 and the tire 9 are assembled on the rear wheel hub 10. After assembly, a pin key 11 is placed at the motor shaft pin keyhole position and pressed and fixed from the motor bushing 109 of the single swing arm rear swingarm 1.
[0036] In this embodiment, one end of the disc brake mounting bracket 4 passes through the motor shaft, and the other end passes through a disc brake limit post 110 on the left tube 102 and is fixed.
[0037] In this embodiment, after the motor shaft of the motor 7 is press-fitted in place in the motor bushing 109, it is tightened and fixed with a spring washer 5 and a lock nut 6.
[0038] In this embodiment, the rear shock absorber hanger bracket 107 is connected to the bottom of the rear shock absorber 2, and a buffer sleeve 3 is also installed at the assembly position of the rear shock absorber hanger bracket 107 and the rear shock absorber 2.
[0039] In this embodiment, a hanger bracket reinforcing plate 108 is additionally provided at the contact end of the rear shock absorber hanger bracket 107 and the left tube 102.
[0040] In this embodiment, a reinforcing diagonal brace 103 is additionally provided between the swingarm head tube 101 and the left tube 102, and the reinforcing diagonal brace 103 is used to enhance the structure between the swingarm head tube 101 and the left tube 102.
[0041] In this embodiment, main bracket mounting brackets 104 are provided on both sides of the swingarm head tube 101, main bracket limit tubes 105 arranged at intervals are provided between the main bracket mounting brackets 104 on both sides, and a main bracket limit plate 106 is provided in the middle of the main bracket limit tubes 105.
[0042] In this embodiment, a swingarm head tube reinforcing plate 111 is additionally provided at the contact end of the main bracket limit tubes 105 and the main bracket limit plate 106 with the swingarm head tube 101.
[0043] In this embodiment, both ends of the flat fork head tube 101 are inserted into the rear flat fork mounting plate of the vehicle frame and fastened by a mounting shaft and bolts; Exemplarily, buffer sleeves 3 can also be press-fitted at the left and right ends of the flat fork head tube 101.
[0044] The structure of the present utility model is reasonable. Compared with the double swing arm structure, the single swing arm rear flat fork 1 reduces a shock absorber and corresponding structural parts, which can save the structural space of the whole vehicle for arranging other parts, thereby achieving a better space layout and improving the comfort and practicality of the vehicle; moreover, the single swing arm structure has relatively fewer parts, which can reduce the cost of parts and the weight of the whole vehicle, thereby improving energy efficiency.
[0045] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0046] The above-described embodiments only express the implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A compact assembly structure of a single swing arm rear swing fork and a chassis, characterized in that Comprising: A single swing arm rear swingarm (1), which is connected to the chassis of the vehicle body; The single swing arm rear swingarm (1) includes a swingarm head tube (101) and a left tube (102). At the top of the left tube (102), there is a rear shock absorber hanger bracket (107) assembled with the rear shock absorber (2). On the left tube (102), there is a motor bushing (109) assembled with the motor shaft of the motor (7); A disc brake disc (8) is installed on the end face of the motor (7), and the disc brake disc (8) is arranged on a disc brake mounting bracket (4); The motor (7) and the tire (9) are assembled on the rear wheel hub (10). After assembly, a pin key (11) is placed at the pin key hole position of the motor shaft, and it is pressed and fixed from the motor bushing (109) of the single swing arm rear swingarm (1).
2. The compact assembly structure of the single swing arm rear swing fork and the chassis according to claim 1, characterized in that: One end of the disc brake mounting bracket (4) passes through the motor shaft, and the other end passes through a disc brake limit post (110) on the left tube (102) and is fixed.
3. The compact assembly structure of the single swing arm rear swing fork and the chassis according to claim 1, characterized in that: After the motor shaft of the motor (7) is pressed and fitted in place in the motor bushing (109), it is tightened and fixed with a spring washer (5) and a lock nut (6).
4. The compact assembly structure of the single swing arm rear swing fork and the chassis according to claim 1, characterized in that: The rear shock absorber hanger bracket (107) is connected to the bottom of the rear shock absorber (2). A buffer sleeve (3) is also installed at the assembly position of the rear shock absorber hanger bracket (107) and the rear shock absorber (2).
5. The compact assembly structure of the single swing arm rear swing fork and the chassis according to claim 4, characterized in that: A hanger bracket reinforcement plate (108) is additionally provided at the contact end of the rear shock absorber hanger bracket (107) and the left tube (102).
6. The compact assembly structure of the single swing arm rear swingarm and the chassis according to claim 1, characterized in that: A reinforcing diagonal brace (103) is additionally provided between the swingarm head tube (101) and the left tube (102). The reinforcing diagonal brace (103) is used to enhance the structure between the swingarm head tube (101) and the left tube (102).
7. The compact assembly structure of the single swing arm rear swing fork and the chassis according to claim 1, wherein: Main bracket mounting brackets (104) are arranged on both sides of the swingarm head tube (101). Between the main bracket mounting brackets (104) on both sides, there are main bracket limit tubes (105) arranged at intervals, and a main bracket limit plate (106) is arranged in the middle of the main bracket limit tubes (105).
8. The compact assembly structure of the single swing arm rear swingarm and the chassis according to claim 7, characterized in that: A swingarm head tube reinforcement plate (111) is additionally provided at the contact end of the main bracket limit tube (105) and the main bracket limit plate (106) with the swingarm head tube (101).
9. The compact assembly structure of the single swing arm rear swing fork and the chassis according to claim 7, characterized in that: Both ends of the swingarm head tube (101) are inserted into the rear swingarm mounting plate of the vehicle frame and fastened by an installation shaft and bolts.