Tool for assembling rear rocker arm

Abstract

The application relates to the technical field of cross-riding vehicle assembly, and provides a rear rocker arm assembly tool. The rear rocker arm assembly tool of the application is suitable for the assembly of a rear rocker arm in a cross-riding vehicle, and is used for assembling a pivot of one end of the rear rocker arm to a frame. The pivot has an axial through central hole, the tool comprises a bulging pipe and a top rod, one end of the bulging pipe is suitable for being penetrated by one end of the pivot through the central hole and extending to the outside of the other end of the pivot, the other end of the bulging pipe is provided with a first holding support, one end of the top rod is inserted into the bulging pipe, and the other end of the top rod is provided with a second holding support, and the one end of the top rod inserted into the bulging pipe can make the bulging pipe expand at the one end extending to the outside of the pivot. The rear rocker arm assembly tool of the application can realize the installation of the rear rocker arm in the cross-riding vehicle on the frame, and is favorable for improving the use quality of the rear rocker arm.

Description

Technical Field

[0001] This application relates to the field of assembly technology for straddle-type vehicles, and in particular to a tooling for assembling a rear swingarm. Background Technology

[0002] In straddle-type vehicles, such as motorcycles, the swingarm is an important component at the rear. It not only connects the rear wheel to the frame, but also works with the rear shock absorber to reduce the transmission of rear wheel vibration to the frame, thereby improving the riding quality of the straddle-type vehicle.

[0003] Currently, in traditional designs, the rear swingarm is generally connected to the frame via a single pivot that runs through the left and right sides. This installation method has disadvantages such as being unfavorable for the arrangement of the drive shaft in motorcycle-type vehicles and being unfavorable for reducing the impact on components such as the bearings at both ends of the rear swingarm.

[0004] Therefore, adopting a split-type mounting pivot provides a solution to the shortcomings of the continuous pivot mounting method. However, in some designs, the split-type pivot requires operating holes to be made on the rear rocker arm during installation, which can adversely affect the structure and sealing of the rear rocker arm, thus hindering its performance. Utility Model Content

[0005] In view of this, this application aims to provide a tooling for assembling a rear swingarm, so as to realize the installation of the rear swingarm on the frame in a motorcycle and improve the quality of the rear swingarm.

[0006] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0007] A tooling for assembling a rear swingarm, suitable for assembling a rear swingarm in a motorcycle, for mounting a pivot at one end of the rear swingarm to a frame, the pivot having an axially through center hole, and the tooling comprising:

[0008] An expansion tube, one end of which is adapted to pass through the central hole from one end of the pivot and extend to the other end of the pivot, and the other end of the expansion tube is provided with a first gripping bracket;

[0009] A push rod, one end of which is inserted into the expansion tube, and the other end of which is provided with a second gripping bracket;

[0010] When the first gripping bracket and the second gripping bracket are driven to move closer to each other, the end of the push rod inserted into the expansion tube can cause the end of the expansion tube extending outside the pivot to expand, and the expansion tube can pull the pivot into the mounting hole on the frame through the expanded end.

[0011] Furthermore, the inner wall of the end of the expansion tube extending outside the pivot has an inclined pushing surface and a notch extending through to the inner wall of the expansion tube;

[0012] One end of the push rod inserted into the expansion tube pushes against the abutment surface, causing the end of the expansion tube extending outside the pivot to expand.

[0013] Furthermore, the notches are multiple and evenly distributed along the circumference of the expansion tube.

[0014] Furthermore, the pushing surface is a ring around the circumference of the expansion tube, and the inner wall of the end of the expansion tube that allows it to expand is conical.

[0015] Furthermore, the end of the push rod inserted into the expansion tube is tapered;

[0016] The push rod pushes against the abutment surface through its tapered end.

[0017] Furthermore, the expansion tube is provided with radially outwardly convex stop blocks;

[0018] The stop block is used to block the nut fitted on the expansion tube when one end of the expansion tube passes through the central hole.

[0019] Furthermore, an elastic reset element is provided between the first grip support and the second grip support;

[0020] The elastic reset member is used to move the first grip support and the second grip support away from each other when the driving force on the first grip support and the second grip support is removed.

[0021] Furthermore, a slide rod assembly is provided between the first grip support and the second grip support;

[0022] The slide rod assembly includes a slide rod connected to the second grip bracket, and a slide member that slides through a through hole in the first grip bracket;

[0023] One end of the slider is constrained to the side of the first grip bracket facing away from the second grip bracket, and the other end of the slider is connected to the slide rod. The elastic reset member is disposed on the slide rod assembly and is located between the first grip bracket and the slide rod.

[0024] Furthermore, the slide rod assembly consists of two symmetrically arranged sets.

[0025] Furthermore, the elastic reset element is a spring sleeved on the slider.

[0026] Compared with related technologies, this application has the following advantages:

[0027] (1) The tooling for assembling the rear swingarm described in this application allows one end of the expansion tube to pass through the central hole of the pivot and extend to the other end of the pivot. When the two gripping brackets are driven to move closer to each other, the end of the push rod inserted into the expansion tube can cause the end of the expansion tube extending to the pivot to expand. The expansion tube can pull the pivot to the mounting hole on the frame through the expanded end. Thus, it can not only realize the installation of the rear swingarm on the frame in a motorcycle, but also avoid drilling holes in the rear swingarm, which helps to ensure the structural strength and rigidity of the rear swingarm and the sealing of the rear swingarm, thereby improving the quality of use of the rear swingarm.

[0028] (2) The inner wall of the end of the expansion tube extending outside the pivot is set as an inclined pushing surface, and a notch is set to penetrate into the inner wall of the expansion tube. When the push rod is inserted into the expansion tube, it is convenient to realize the expansion of one end of the expansion tube. Moreover, its structure is simple and easy to design and form.

[0029] (3) Make the notches evenly distributed along the circumference of the expansion tube, which facilitates the expansion of the end of the expansion tube. At the same time, it can make the expansion degree of each position of the expansion tube more consistent, so that the pivot can be pulled more stably after the end of the expansion tube extends outside the pivot.

[0030] (4) The inner wall of the end of the expansion tube that can expand is conical, which can cooperate with multiple evenly distributed notches and expand better under the action of the push rod, which helps to further improve the performance of the tooling.

[0031] (5) By making the end of the push rod used to drive the expansion tube to expand into a tapered shape, it helps to make the expansion tube fully expand at all positions under the action of the push rod, and the expansion degree is consistent. This allows the expansion tube to pull the pivot more stably, which is beneficial to ensuring the smooth progress of the rear rocker arm installation process.

[0032] (6) Setting a stop on the expansion tube can prevent the nut on the expansion tube from sliding towards the holding bracket, which would cause inconvenience to the operation of the tooling and help improve the quality of the tooling.

[0033] (7) By setting an elastic reset component between the two gripping brackets, when the driving force on the first gripping bracket and the second gripping bracket is removed, the two gripping brackets will automatically move away from each other, so that the expanded end of the expansion tube can be automatically reset, which can increase the convenience of tooling use and help to further improve the installation efficiency of the rear rocker arm.

[0034] (8) A slide rod assembly mainly composed of slide rods and slide pieces is provided between the first gripping bracket and the second gripping bracket, and the elastic reset piece is provided on the slide rod assembly. This facilitates the placement of the elastic reset piece between the two gripping brackets. Furthermore, the relative sliding of the slide rod assembly between the two gripping brackets can increase the smoothness of the relative sliding between the push rod and the expansion tube, which is beneficial to improving the quality of tooling use.

[0035] (9) The two sets of sliding rod assemblies arranged symmetrically can effectively prevent the top rod from rotating relative to the expansion tube while the top rod slides relative to the expansion tube, thus avoiding inconvenience to the use of the tooling.

[0036] (10) The elastic reset component is made of a spring sleeved on the slide, which has a simple structure, low cost, and can also ensure the stability of the elastic reset component. Attached Figure Description

[0037] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0038] Figure 1 This is a schematic diagram of the rear rocker arm mounted on the vehicle frame according to an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the vehicle frame described in the embodiments of this application;

[0040] Figure 3 This is a schematic diagram of the structure of the rear rocker arm described in the embodiment of this application;

[0041] Figure 4 This is a schematic diagram of the mounting structure of one end of the rear rocker arm described in the embodiment of this application;

[0042] Figure 5 This is a schematic diagram of the structure of the pivot described in the embodiment of this application;

[0043] Figure 6 This is a schematic cross-sectional view of the pivot described in an embodiment of this application;

[0044] Figure 7 This is a schematic diagram of the tooling structure described in the embodiments of this application;

[0045] Figure 8 This is a schematic diagram illustrating the structure of the tooling described in the embodiments of this application;

[0046] Figure 9 for Figure 8 A magnified view of part A in the middle;

[0047] Figure 10This is a schematic diagram illustrating the use of the tooling described in the embodiments of this application;

[0048] Figure 11 This is a schematic diagram of the tightening tool described in the embodiments of this application;

[0049] Figure 12 This is a schematic diagram of the sleeve described in an embodiment of this application;

[0050] Explanation of reference numerals in the attached figures:

[0051] 1. Rear swingarm; 2. Frame; 3. Left side mounting structure; 4. Tooling; 5. Tightening tool; 6. Socket;

[0052] 1a. Sleeve; 1b. Drive shaft clearance hole; 2a. Fork arm; 201. Mounting hole; 301. Pivot; 302. Bushing; 303. Bearing; 304. Nut; 305. Bolt; 306. Retaining ring; 307. Sealing ring; 401. Expansion tube; 402. Push rod; 403. First gripping bracket; 404. Second gripping bracket; 405. Elastic reset component; 406. Sliding component; 407. Sliding rod;

[0053] 3011, center hole; 3011a, tightening hole section; 3011b, threaded hole section; 3012, shoulder; 4011, stop block; 401a, push surface; 401b, notch; 402a, end; 4031, through hole; 6a, fitting hole; 601, handle. Detailed Implementation

[0054] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0055] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0056] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0058] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0060] An embodiment of the first aspect of this application provides a rear swingarm assembly tool (hereinafter referred to as tool 4), which is applicable to the assembly operation of the rear swingarm 1 in a motorcycle-type vehicle, so as to assemble the pivot of one end of the rear swingarm 1 onto the frame 2. The rear swingarm assembly tool can not only realize the installation of the rear swingarm 1 on the frame 2 in the motorcycle-type vehicle, but also help to improve the quality of use of the rear swingarm 1.

[0061] In related technologies, in straddle-type vehicles such as motorcycles, the rear swingarm 1, as one of the important rear components of the vehicle, is typically pivotally connected to the frame 2 at one end and connected to the rear wheel at the other end. A rear shock absorber, connected to the frame 2, is also usually located in the middle of the rear swingarm 1. This allows the rear swingarm 1 to not only connect the rear wheel to the frame 2, but also, in conjunction with the rear shock absorber, reduce the transmission of rear wheel vibration to the frame, thereby improving the vehicle's riding quality.

[0062] In the traditional design of motorcycles, the rear swingarm 1 is generally connected to the frame 2 via a single pivot that runs through both sides. This mounting method has two drawbacks. Firstly, the location of the rear swingarm 1 requires the placement of a driveshaft that connects to the rear wheel drivetrain. The through-type pivot necessitates a design that avoids obstructing the driveshaft's path, making its placement inconvenient and detrimental. Secondly, the through-type pivot can easily generate assembly stress between the bearings and other mounting structures at both ends of the rear swingarm 1. During vehicle operation, this can hinder the reduction of impacts caused by rear wheel vibrations on the bearings and other components at both ends of the rear swingarm, thus reducing the service life of these mounting structures.

[0063] Therefore, adopting a split-type mounting pivot provides a feasible solution to the shortcomings of the whole-pivot mounting method. However, in some designs, the split-type pivot requires operating holes to be made on the rear rocker arm 1 during installation, which will adversely affect the structural performance of the rear rocker arm 1 and the internal sealing of the rear rocker arm 1, thus hindering the improvement of the quality of use of the rear rocker arm 1.

[0064] In view of this, in order to overcome the shortcomings of the relevant technologies, and in combination with Figures 1 to 12 As shown, the tooling 4 provided in this embodiment is designed to be suitable for a pivot 301 with an axially through central hole 3011, and the tooling 4 includes an expansion tube 401 and a push rod 402.

[0065] One end of the expansion tube 401 is adapted to pass through the central hole 3011 from one end of the pivot 301 and extend to the other end of the pivot 301. A first gripping bracket 403 is provided at the other end of the expansion tube 401. One end of the push rod 402 is inserted into the expansion tube 401, and a second gripping bracket 404 is also provided at the other end of the push rod 402.

[0066] Furthermore, when the first grip bracket 403 and the second grip bracket 404 are driven to approach each other, the end of the push rod 402 inserted into the expansion tube 401 can cause the end of the expansion tube 401 extending outside the pivot 301 to expand, and the expansion tube 401 can pull the pivot 301 into the mounting hole 201 on the frame 2 through the expanded end, so as to realize the installation of the pivot 301 on the frame 2.

[0067] Therefore, based on the fact that one end of the expansion tube 401 can pass through the central hole 3011 of the pivot 301 and extend to the other end of the pivot 301, when the two gripping brackets are driven to move closer to each other, the end of the push rod 402 inserted into the expansion tube 401 can cause the end of the expansion tube 401 extending to the outside of the pivot 301 to expand, and the expansion tube 401 can pull the pivot 301 into the mounting hole 201 on the frame 2 through the expanded end. In this embodiment, the rear swingarm 1 in the straddle-type vehicle can be installed on the frame, while avoiding the need to make holes in the rear swingarm 1, thereby ensuring the structural strength and rigidity of the rear swingarm 1, as well as the sealing effect of the rear swingarm 1.

[0068] Based on the above overview, specifically, it is first necessary to introduce the rear rocker arm mounting form with a left-right disconnected pivot 301 applicable to tooling 4 in this embodiment. Here, as one example, we will continue to combine... Figures 1 to 6 As shown, the mounting structure of the rear rocker arm 1 includes a pivot 301, a bushing 302, a bearing 303, a nut 304, and a bolt 305.

[0069] The pivot 301 is mounted on the frame 2. A bushing 302 is fitted onto one end of the pivot 301 that extends into the rear rocker arm 1. A bearing 303 is disposed between the bushing 302 and the rear rocker arm 1. A nut 304 is connected to the other end of the pivot 301, and the nut 304 also secures the bushing 302 between the pivot 301 and the frame 2. A bolt 305 is connected to the pivot 301 and is located at the same end of the pivot as the nut 304, and the bolt 305 also locks the nut 304 to the end of the pivot 301.

[0070] At this time, by having the pivot 301 pass through the mounting hole 201 on the frame 2, the bushing 302 is fitted on the end of the pivot 301 that extends into the rear swingarm 1, and the bearing 303 is set between the bushing 302 and the rear swingarm 1. The nut 304 is connected to the other end of the pivot 301, and the bushing 302 is fixed between the pivot 301 and the frame 2. By utilizing the cooperation between the pivot 301, the bushing 302 and the nut 304, on the basis of connecting the pivot 301 with the bushing 302 to the frame 2, on the one hand, the bearing 303 can be used to support the rotation of the rear swingarm 1, so as to realize the rotational installation of the rear swingarm 1 on the frame 2. On the other hand, by having only one end of the pivot 301 extend into the rear swingarm 1, the pivot 301 used to connect the rear swingarm 1 and the frame 2 can be separated to the left and right, thereby avoiding the inconvenience caused by using a whole pivot 301 for the arrangement of the drive shaft in the motorcycle type.

[0071] Of course, it is understandable that by providing a bolt 305 connected to the pivot 301, and by enabling the bolt 305 to lock the nut 304 to the end of the pivot 301, this embodiment can also reduce the possibility of the nut 304 coming loose, and thus help improve the stability of the connection between the pivot 301 and the frame 2.

[0072] It is worth noting that, in this embodiment, the rear swingarm 1 can be, for example, a single swingarm, and the shock absorber located between the rear swingarm 1 and the frame 2 is also centrally mounted. Furthermore, continuing as... Figure 1 and Figure 2 As shown in the figure, the frame 2 of this embodiment also has two forks 2a arranged opposite to each other in the structure. The two forks 2a are arranged opposite to each other in the straddle-type vehicle. Mounting holes 201 are provided on the two forks 2a respectively for mounting the rear swingarm 1.

[0073] The aforementioned mounting structure for the rear rocker arm 1 is specifically used to mount one end of the rear rocker arm 1 onto the fork arm 2a on the same side, and still with... Figures 1 to 6 Taking the orientation shown as an example, in this embodiment, the tooling 4 can be, for example, a tool that rotates the left end of the rear rocker arm 1 onto the fork arm 2a on the same side. At this time, still taking... Figures 1 to 6 The directions shown are for reference. For ease of description, the mounting structure for mounting the left end of the rear rocker arm 1 can be called the left mounting structure 3, and the mounting structure for mounting the right end of the rear rocker arm 1 can be called the right mounting structure.

[0074] Continue to combine Figure 1 and Figure 3 As shown, it is worth noting that the end of the rear rocker arm 1 connected to the frame 2 in this embodiment is the end with the sleeve 1a (specifically the front end of the rear rocker arm 1). The sleeve 1a in the rear rocker arm 1 has an inner cavity that extends through the rear rocker arm 1 from left to right. Some of the structures in the aforementioned left and right mounting structures are located in this inner cavity to enable the rear rocker arm 1 to be rotated and mounted on the frame 2.

[0075] In addition, in this embodiment, the drive shaft in the above-mentioned straddle-type vehicle is specifically set in the drive shaft clearance hole 1b on the rear rocker arm 1. The drive shaft clearance hole 1b passes through the rear rocker arm 1b from front to back and also intersects with the inner cavity of the sleeve 1a.

[0076] Furthermore, by adopting the above-described installation structure of this embodiment, the pivot 301 connecting the rear rocker arm 1 and the frame 2 can be disconnected to the left and right, allowing the drive shaft to pass through the drive shaft clearance hole 1b. The front end of the drive shaft is generally connected to the power output end of the powertrain (such as the engine) in the vehicle via a universal joint, while the rear end is connected to the rear final drive, so as to realize the transmission of power from the powertrain to the rear wheels of the vehicle.

[0077] In this embodiment, taking the left mounting structure 3 as an example, based on the inner cavity formed by the sleeve 1a position of the rear rocker arm 1, one end of the pivot 301 in this mounting structure extends into the inner cavity of the rear rocker arm 1, specifically only one end extends into the inner cavity of the rear rocker arm 1. At the same time, the bearing 303, which is set on the pivot 301 via the bushing 302, is also press-fitted to the left end of the inner cavity to realize the rotational connection between the pivot 301 and the rear rocker arm 1.

[0078] Furthermore, in the aforementioned left-side mounting structure 3, as a preferred embodiment, a shoulder 3012 is also provided at the end of the pivot 301 that extends into the rear rocker arm 1. This shoulder 3012 is used to fix the bushing 302 between the pivot 301 and the fork arm 2a in the frame 2 after the nut 304 is connected, so as to realize the fixed arrangement of the entire left-side mounting structure 3 on the fork arm 2a in the frame 2, and thereby realize the rotational arrangement of the rear rocker arm 1 on the frame 2 by means of the bearing 303.

[0079] By providing a shoulder 3012 at one end of the pivot 301 that extends into the rear rocker arm 1, and fixing the bushing 302 between the shoulder 3012 and the frame 2 with a nut 304, it is easy to fix the bushing 302 between the pivot 301 and the frame 2. It also has the advantages of simple structure, easy molding, and good structural stability.

[0080] It is worth noting that, in specific implementation, as an example, please refer to [reference needed]. Figure 4 As shown, for example, the inner ring of the bearing 303 can be made to contact the shoulder 3012 at the end of the pivot 301, thereby indirectly achieving the fixed arrangement of the bushing 302 between the pivot 301 and the frame 2 by utilizing the inner ring of the bearing 303 located between the bushing 302 and the shoulder 3012.

[0081] However, in addition to indirectly fixing the bushing 302 between the pivot 301 and the frame 2 by using the inner ring of the bearing 303, it is also possible to make the end of the bushing 302 near the shoulder 3012 also contact the shoulder 3012, and then use the connected nut 304 to directly fix the bushing 302 between the pivot 301 and the frame 2.

[0082] In this embodiment, combined with Figure 5 and Figure 6 As shown, a clamping hole section 3011a and a threaded hole section 3011b are also provided in the central hole 3011 of the pivot 301. The cross-section of the clamping hole section 3011a is a regular polygon (such as a regular hexagon), and the clamping hole section 3011a can be used with a tool (such as...) inserted therein. Figure 11The tightening tool 5) is used to engage with a wrench or other tool to drive the pivot 301 to rotate when tightening the nut 304. The threaded hole section 3011b is used for bolt 305 to be threaded, so as to realize the connection of bolt 305 within the pivot 301.

[0083] Furthermore, given that a nut 304 and a bolt 305 are connected to one end of the pivot 301 that extends outside the first mounting hole 201, in a specific implementation, as a preferred design, the screwing direction between the nut 304 and the pivot 301 can be opposite to the screwing direction between the bolt 305 and the pivot 301.

[0084] In this way, by making the screwing direction between the nut 304 and the pivot 301 opposite to the screwing direction between the bolt 305 and the pivot 301, when the bolt 305 is assembled, the rotation tendency of the bolt 305 driving the pivot 301 is to tighten with the nut 304. Thus, when assembling the bolt 305, it is not necessary to use a separate tool to clamp and fix the pivot 301, which facilitates the assembly operation of the bolt 305.

[0085] At the same time, by utilizing the screwing direction between nut 304 and pivot 301, which is opposite to the screwing direction between bolt 305 and pivot 301, when nut 304 shows a tendency to loosen, it can also utilize the fact that bolt 305 is in a tightening tendency at this time to effectively prevent nut 304 from loosening, thereby ensuring the reliability of the connection of pivot 301 on frame 2.

[0086] In specific implementation, the external thread at the third shaft segment 301c on the pivot 301 can be, for example, a forward thread, to be screwed into the nut 304, while the thread on the bolt 305 can be, for example, a reverse thread, and mate with the threaded hole segment 3011b inside the pivot 301 to achieve the connection of the bolt 305 inside the pivot 301.

[0087] In this embodiment, specifically, the bearing 303 in the aforementioned left-side mounting structure 3 can be, for example, a deep groove ball bearing. This allows the bearing 303 to be a deep groove ball bearing, which not only has a simple structure, is easy to use, has a long service life, and excellent high-speed performance, but also utilizes the characteristic of deep groove ball bearings to withstand combined radial and axial loads, improving the adaptability of the bearing 303 to the swing of the rear rocker arm 1 and enhancing the stability of the rear rocker arm 1 mounted on the frame 2.

[0088] In addition, as Figure 4 As shown, in a specific implementation, a retaining ring 306 can generally be provided on the outside of the bearing 303, that is, on the side of the bearing 303 facing the fork arm 2a, and the retaining ring 306 is snapped onto the rear rocker arm 1.

[0089] Specifically, the retaining ring 306 is fitted into a groove on the inner wall of the inner cavity 1c. After the retaining ring 306 is fitted into the groove on the rear rocker arm 1, it can abut against the outer ring of the bearing 303, thereby enabling it to cooperate with the rear rocker arm 1 to achieve the positioning arrangement of the bearing 303 within the rear rocker arm 1.

[0090] In this embodiment, in addition to the retaining ring 306, a sealing ring 307 can also be further provided on the outside of the retaining ring 306. The sealing ring 307 is located between the rear rocker arm 1 and the bushing 302, and the sealing ring 307 generally adopts an existing product with an internally embedded skeleton and a sealing lip at the position where it abuts against the bushing 302.

[0091] Understandably, by providing a retaining ring 306 that is snapped onto the rear rocker arm 1 on the outside of the bearing 303, it can work with the rear rocker arm 1 to limit and prevent the bearing 303 from detaching, thus ensuring the stability of the connection between the bearing 303 and the rear rocker arm 1. Furthermore, by providing a sealing ring 307 on the outside of the bearing 303, located between the rear rocker arm 1 and the bushing 302, it can provide waterproofing and dustproofing for the bearing 303, ensuring its smooth and reliable operation and contributing to extending its service life.

[0092] In this embodiment, it is worth noting that, in addition to the left mounting structure 3 described above, the right mounting structure on the other side may also adopt the same structural form as the left mounting structure 3 described above in some implementations.

[0093] However, in addition to being the same as the left mounting structure 3, in other implementations, the right mounting structure can also adopt other related structures that include mounting shafts and bearing components to enable the right end of the rear rocker arm 1 to be rotated and mounted. There are no restrictions on this, as long as it can be similar to the left mounting structure 3, enable the rear rocker arm 1 to be mounted on the frame 2, and enable the left and right disconnection design of the rear rocker arm mounting pivot.

[0094] In this embodiment, we continue to combine Figures 7 to 9 As shown, in some exemplary embodiments, one end of the expansion tube 401 can expand when the push rod 402 is inserted. In a specific design, for example, the inner wall of the end of the expansion tube 401 extending outside the pivot 301 may have an inclined abutment surface 401a, while a notch 401b penetrating into the inner wall of the expansion tube 401 is provided at that end of the expansion tube 401.

[0095] Therefore, the end of the push rod 402 inserted into the expansion tube 401 is pushed and pushed by the abutment surface 401a, so that the end of the expansion tube 401 extending outside the pivot 301 can expand. Furthermore, by setting the inner wall of the end of the expansion tube 401 extending outside the pivot 301 as an inclined abutment surface 401a and providing a notch 401b that penetrates into the inner wall of the expansion tube 401, it is convenient to achieve the expansion of one end of the expansion tube 401 when the push rod 402 is inserted into the expansion tube 401. It also has the advantages of simple structure and easy design and molding.

[0096] Furthermore, in some of these exemplary implementations, see still Figure 9 As shown, the above-mentioned notch 401b can be a plurality of evenly distributed notches 401 along the circumference of the expansion tube 401. The evenly distributed notches 401b not only facilitate the expansion of the end of the expansion tube 401, but also make the degree of expansion at each position of the end of the expansion tube 401 more consistent. After the end of the expansion tube 401 that extends outside the pivot 301 expands, the pivot 301 can be pulled more stably.

[0097] Furthermore, based on the premise that the notches 401b are multiple evenly spaced, in some exemplary embodiments, the aforementioned pushing surface 401a may, for example, be a ring surrounding the circumference of the expansion tube 401, with the inner wall of the end of the expansion tube 401 capable of expansion being conical. In this way, the conical inner wall of the end of the expansion tube 401 capable of expansion can cooperate with the multiple evenly spaced notches 401b to better expand under the action of the push rod 402, thereby further improving the performance of the tooling.

[0098] In this embodiment, we still combine Figure 8 As shown, in some exemplary embodiments, the end 402a of the push rod 402 inserted into the expansion tube 401 may be tapered, for example, and the push rod 402 pushes against the push surface 401a through the tapered end 402a. This tapered end of the push rod 402, used to drive the expansion tube 401 to expand, also helps to ensure that all positions at the end of the expansion tube 401 expand sufficiently and to a uniform degree under the action of the push rod 402. This allows for a more stable pulling of the pivot 301 using the expansion tube 401, which is beneficial for ensuring the smooth installation of the rear rocker arm 1.

[0099] See also Figure 7 and Figure 8 As shown, in some exemplary embodiments, a radially protruding stop 4011 may be provided on the expansion tube 401. This stop 4011 is mainly used to block the nut 304 sleeved on the expansion tube 401 when one end of the expansion tube 401 passes through the central hole 3011. This prevents the nut 304 sleeved on the expansion tube 401 from sliding towards the first gripping bracket 403, thus avoiding inconvenience to the operation of the tooling 4 and improving the usability of the tooling 4.

[0100] In some exemplary embodiments of this embodiment, an elastic reset member 405 may be provided between the first gripping bracket 403 and the second gripping bracket 404. The elastic reset member 405 is mainly used to allow the first gripping bracket 403 and the second gripping bracket 404 to move away from each other when the driving force on the first gripping bracket 403 and the second gripping bracket 404 is removed.

[0101] At this time, an elastic reset member 405 is provided between the first gripping bracket 403 and the second gripping bracket 404. It can be understood that when the driving force on the first gripping bracket 403 and the second gripping bracket 404 is removed, the first gripping bracket and the second gripping bracket will automatically move away from each other, so that the expanded end of the expansion tube 401 can be automatically reset, thereby increasing the convenience of using the tooling 4 and helping to further improve the installation efficiency of the rear rocker arm 1.

[0102] In a specific implementation, as an exemplary configuration of the elastic reset member 405 between the first gripping bracket 403 and the second gripping bracket 404, for example, in this embodiment, a slide rod assembly may be provided between the first gripping bracket 403 and the second gripping bracket 404, and so on. Figure 7 and Figure 8 As shown, the slide rod assembly includes a slide rod 407 connected to the second grip bracket 404, and a slide member 406 slidably passing through a through hole 4031 in the first grip bracket 403. One end of the slide member 406 is constrained to the side of the first grip bracket 403 opposite to the second grip bracket 404, and the other end of the slide member 406 is connected to the slide rod 407. An elastic reset member 405 is disposed on the slide rod assembly, specifically located between the first grip bracket 403 and the slide rod 407.

[0103] It is understandable that by setting a slide rod assembly mainly composed of a slide rod 407 and a slide member 406 between the first gripping bracket 403 and the second gripping bracket 404, and setting the elastic reset member 405 on the slide rod assembly, it is possible to facilitate the setting of the elastic reset member 405 between the two gripping brackets. Furthermore, by utilizing the relative sliding of the slide rod assembly between the first gripping bracket 403 and the second gripping bracket 404, it is clear that it can also increase the smoothness of the relative sliding between the push rod 402 and the expansion tube 401, which is beneficial to improving the quality of use of the tooling 4.

[0104] In this embodiment, based on the above-described sliding rod assembly configuration, in some exemplary implementations, it is preferable to configure two symmetrically arranged sliding rod assemblies, with an elastic reset member provided at each sliding rod assembly. Thus, by using two symmetrically arranged sliding rod assemblies, it is possible to effectively prevent the top rod 402 from rotating relative to the expansion tube 401 while the top rod 402 slides relative to the expansion tube 401, thereby avoiding inconvenience to the use of the tooling 4.

[0105] Continue as Figure 7 and Figure 8 As shown in the illustration, in some exemplary embodiments, the elastic reset member 405 may be, for example, a spring sleeved on the slider 406. In this case, using a spring sleeved on the slider 406 for the elastic reset member not only results in a simple structure and low cost, but also ensures the stability of the elastic reset member 405.

[0106] In addition, as an example, in specific implementation, the slide bar 407 can generally be fixed to the second grip bracket 404 by welding or screwing, or the slide bar 407 and the second grip bracket 404 can be integrally formed.

[0107] The aforementioned slider 406 can be made of screw, so that not only can one end of the slider 406 be constrained to the side of the first grip bracket 403 facing away from the second grip bracket 404 by using the head of one end of the screw, but the other end of the slider 406 can also be connected to the slider 407 by using the screw connection between the screw and the slider 407.

[0108] In this embodiment, when installing the tooling 3, taking the above-mentioned left-side mounting structure 3 as an example, first press the bearing 303 onto the bushing 302, then put the bushing 302 onto the pivot 301, and then press the bearing 303, which is assembled with the bushing 302 and the pivot 301, into one end of the rear rocker arm 1.

[0109] Specifically, the bearing 303 is press-fitted into the mounting groove on the bushing 302 by one end. After the bushing 302 is fitted onto the pivot 301, the pivot 301, with the bushing 302 and bearing 303 attached, can be placed at the end of the inner cavity of the rear rocker arm 1. A pressing force is applied to the outer ring of the bearing 303 using a pressing tool, thereby pressing the bearing 303, which is assembled with the bushing 302 and the pivot 301, into the left end of the inner cavity of the rear rocker arm 1. Next, the retaining ring 306 can be installed into the retaining groove in the rear rocker arm 1 using snap ring pliers, and then the sealing ring 307 is pressed between the rear rocker arm 1 and the bushing 302.

[0110] Next, the nut 304 is fitted onto the fixture 4, so that one end of the fixture 4 passes through the frame 2 and the pivot 301. Then, the fixture 4 pulls the pivot 301, causing one end of the pivot 301 to slide through the frame 2.

[0111] Specifically, after fitting the nut 304 onto the tool 4, that is, fitting the nut 304 onto the expansion tube 401, and without bringing the two gripping brackets close to each other, one end of the expansion tube 401 passes through the first mounting hole 201 on the frame 2 and the center hole 3011 in the pivot 301. Next, by gripping the two gripping brackets tightly and bringing them close to each other, the tapered end 402a of the push rod 402 pushes against the abutment surface 401a in the expansion tube 401, thereby causing the end of the expansion tube 401 extending outside the pivot 301 to expand.

[0112] After the end of the expansion tube 401 extending outside the pivot 301 expands, the driving force on the two gripping brackets is maintained, and the expansion tube 401 is pulled outward. The tooling 4 can then pull the pivot 301, so that one end of the pivot 301 slides through the first mounting hole 201, thus realizing the mounting arrangement of the pivot 301 on the frame 2.

[0113] Finally, the nut 304 is connected to one end of the pivot 301 that protrudes from the mounting hole 201 on the frame 2, and after the nut 304 is tightened to the pivot 301, the bolt 305 is connected inside the pivot 301, such that the bolt 305 locks the nut 304 to the end of the pivot 301.

[0114] Specifically, after one end of the pivot 301 slides through the first mounting hole 201 via the tooling 4, the nut 303 can be connected to the pivot 301 by tightening the nut 303. Then, the driving force on the two gripping brackets in the tooling 4 can be removed, allowing the push rod 402 to slide back into position under the action of the elastic reset member 405, while the expanded end of the expansion tube 401 also resets. Next, the tooling 4 can be pulled out from the pivot 301 and the first mounting hole 201.

[0115] After removing tool 4, to tighten nut 303 on pivot 301, for example, the following can be used: Figure 11 The tightening tool 5 shown, and Figure 12 The sleeve 6 shown is shown. The cross-section of the tightening tool 5 is a regular polygon that matches the tightening hole section 3011a on the pivot 301. When one end of the tightening tool 5 is inserted into the tightening hole section 3011a on the pivot 301, the tightening tool 5 can be held with a wrench or other tools to tighten the pivot 301.

[0116] The sleeve 6 has a fitting hole 6a that matches the outer contour of the nut 304, and is provided with a handle 601 for holding the sleeve 6. When the sleeve 6 is fitted onto the nut 304, it can prevent the nut 304 from rotating. Then, by using the tightening tool 5 to tighten the pivot 301, the nut 304 and the pivot 301 can be tightened.

[0117] After tightening the nut 304, the bolt 305 is then connected to the center hole 3011 in the pivot 301. The bolt 305 and the nut 304 have opposite threads. After tightening the bolt 305, the bolt 305 locks the nut 304 at the end of the pivot 301, thus completing the installation of one end of the rocker arm 1 on the frame 2.

[0118] The tooling for assembling the rear swingarm in this embodiment adopts the above design, which can realize the installation of the rear swingarm 1 on the frame of the motorcycle and avoid drilling holes in the rear swingarm 1. This helps to ensure the structural strength and rigidity of the rear swingarm 1, as well as the sealing effect of the rear swingarm 1, and has good practicality.

[0119] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A tooling for assembling a rear swingarm, applicable to the assembly of a rear swingarm (1) in a motorcycle, for assembling a pivot (301) at one end of the rear swingarm (1) onto a frame (2), characterized in that, The pivot (301) has an axially through central hole (3011), and the tooling includes: An expansion tube (401) is provided at one end, which is adapted to pass through the central hole (3011) from one end of the pivot (301) and extend to the other end of the pivot (301). The other end of the expansion tube (401) is provided with a first gripping bracket (403). A push rod (402) is provided at one end, which is inserted into the expansion tube (401), and the other end of the push rod (402) is provided with a second gripping bracket (404). When the first grip bracket (403) and the second grip bracket (404) are driven to move closer to each other, the end of the push rod (402) inserted into the expansion tube (401) can cause the end of the expansion tube (401) extending outside the pivot (301) to expand, and the expansion tube (401) can pull the pivot (301) into the mounting hole (201) on the frame (2) through the expanded end.

2. The tooling for assembling the rear rocker arm according to claim 1, characterized in that: The inner wall of the end of the expansion tube (401) extending outside the pivot (301) has an inclined pushing surface (401a) and a notch (401b) penetrating into the inner wall of the expansion tube (401). The end of the push rod (402) inserted into the expansion tube (401) pushes against the abutment surface (401a) to cause the end of the expansion tube (401) extending outside the pivot (301) to expand.

3. The tooling for assembling the rear rocker arm according to claim 2, characterized in that: The notch (401b) is a plurality of evenly spaced notches along the circumference of the expansion tube (401).

4. The tooling for assembling the rear rocker arm according to claim 3, characterized in that: The pushing surface (401a) is a ring around the circumference of the expansion tube (401), and the inner wall of the end that allows the expansion tube (401) to expand is conical.

5. The tooling for assembling the rear rocker arm according to claim 4, characterized in that: The end (402a) of the top rod (402) inserted into the expansion tube (401) is tapered; The push rod (402) pushes against the abutment surface (401a) through the tapered end (402a).

6. The tooling for assembling the rear rocker arm according to claim 1, characterized in that: The expansion tube (401) is provided with a radially outwardly convex stop (4011). The stop (4011) is used to block the nut (304) sleeved on the expansion tube (401) when one end of the expansion tube (401) passes through the center hole (3011).

7. The tooling for assembling a rear rocker arm according to any one of claims 1 to 6, characterized in that: An elastic reset member (405) is provided between the first grip bracket (403) and the second grip bracket (404); The elastic reset member (405) is used to move the first gripping bracket (403) and the second gripping bracket (404) away from each other when the driving force on the first gripping bracket (403) and the second gripping bracket (404) is removed.

8. The tooling for assembling the rear rocker arm according to claim 7, characterized in that: A slide rod assembly is provided between the first grip bracket (403) and the second grip bracket (404); The slide rod assembly includes a slide rod (407) connected to the second grip bracket (404) and a slide member (406) that slides through a through hole (4031) in the first grip bracket (403). One end of the slider (406) is constrained to the side of the first gripping bracket (403) facing away from the second gripping bracket (404), and the other end of the slider (406) is connected to the slide rod (407). The elastic reset member (405) is disposed on the slide rod assembly and located between the first gripping bracket (403) and the slide rod (407).

9. The tooling for assembling a rear rocker arm according to claim 8, characterized in that: The slide bar assemblies are arranged in two symmetrical sets.

10. The tooling for assembling a rear rocker arm according to claim 8, characterized in that: The elastic reset member (405) is a spring sleeved on the slider (406).

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