Anti-eccentricity motorcycle chain wheel

Abstract

The utility model discloses an anti-eccentricity motorcycle chain wheel, relates to the technical field of chain wheels, solves the problems that an existing device is inaccurate in installation position and low in stability, and adopts the following scheme that a wheel seat is fixedly installed on the left side of a wheel. The chain wheel seat is located in the mounting cavity, the chain wheel is attached to the left side of the chain wheel seat, the limiting groove corresponds to the limiting ring, and finally the chain wheel and the chain wheel seat are fixedly connected through bolts, so that the chain wheel, the chain wheel seat and the wheel seat are closely connected, and the mounting precision is improved; then the bolt is inserted into the mounting hole A from the mounting hole B, the nut is located on the left side of the chain wheel, the bolt corresponds to the bolt hole, then the nut is rotated, the chain wheel, the chain wheel base and the wheel base can be stably connected into a whole through the gasket, and the mounting stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of sprockets, in particular to an anti-eccentricity motorcycle sprocket. Background Art

[0002] A motorcycle's sprocket seat is a key component that connects the chain between the rear-wheel drive and the engine's output gear. Existing sprocket seats have a bearing mounted in their center, secured to the motorcycle body via fasteners. Due to the high-speed rotation of the bearing, the sprocket seat can easily wear or tear due to eccentric rotation and other structural issues.

[0003] After searching, the application with patent publication number CN209008810U discloses a motorcycle sprocket structure, including a circular sprocket seat body, a bearing mounting through hole is provided in the center of the sprocket seat body, one side of the sprocket seat body forms an arc surface from the outer edge to the bearing mounting through hole, and the bearing mounting through hole is provided with a first concave platform and a second concave platform in sequence from one side of the arc surface edge to the end of the other side. The second concave platform and the inner wall of the bearing mounting through hole form a bearing mounting limit mechanism, which can prevent the bearing from being displaced and improve the stability of the bearing.

[0004] However, since the diameter of the sprocket seat body is installed on the wheel, it is easy to cause the installation position of the sprocket seat body to shift, causing the chain on the sprocket seat body to be eccentric, resulting in chain wear and breakage, and the installation position is not accurate. At the same time, since the sprocket seat body is directly installed by bolts, the bolts are easy to loosen after long-term use, and the installation stability is low.

[0005] Therefore, we propose an anti-eccentricity motorcycle sprocket. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an anti-eccentricity motorcycle sprocket, which solves the problems of inaccurate installation position and low stability of the prior device.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anti-eccentricity motorcycle sprocket, comprising a wheel and a sprocket with matching specifications;

[0008] A wheel seat is fixedly installed on the left side of the wheel, a mounting cavity is opened on the left side of the wheel seat, a sprocket seat of matching specifications is installed in the mounting cavity, a limiting ring with a relative position is fixedly installed on the left side of the sprocket seat, a limiting groove with matching specifications is opened on the right side of the sprocket, six groups of threaded holes with relative positions are opened in the mounting cavity, six groups of mounting holes A and mounting holes B with relative positions and penetrating therethrough are opened on the right side of the sprocket seat and the sprocket respectively, and bolts with matching specifications are installed in the threaded holes;

[0009] A through hole is provided on the right side of the sprocket, a bearing of matching specifications is fixedly installed on the left side of the sprocket seat, a nut located on the left side of the sprocket is fixedly installed on the left side of the bolt, the nut is a regular hexagon, and a washer is assembled between the nut and the sprocket.

[0010] Preferably, an annular mounting groove is provided in the mounting cavity, and a mounting ring with matching specifications is fixedly installed on the right side of the sprocket seat, so that the sprocket seat can be limited and the stability and accuracy of the sprocket seat installation can be improved.

[0011] Preferably, evenly distributed slots are provided on the inner wall of the through hole, and a block with matching specifications is fixedly installed on the outer wall of the bearing, so that the sprocket can be limited and the accuracy and stability of the sprocket installation can be improved.

[0012] Preferably, the thickness of the wheel seat and the sprocket seat is 5 cm, and the diameter of the sprocket is larger than the diameter of the wheel seat, so as to prevent the chain on the sprocket from contacting the wheel.

[0013] Preferably, six groups of grooves are provided on the left side of the sprocket in opposite positions, which can reduce the gravity and resistance of the sprocket and improve the heat dissipation performance of the sprocket.

[0014] Preferably, the sprocket is integrally formed, which can improve the strength of the sprocket.

[0015] 1. The anti-eccentricity motorcycle sprocket is provided with an installation cavity, a limiting groove and bolts. The sprocket seat is located in the installation cavity, the sprocket fits with the left side of the sprocket seat, the limiting groove and the limiting ring correspond to each other, and finally they are connected and fixed by bolts, thereby closely connecting the sprocket, the sprocket seat and the wheel seat, limiting each other, and improving the accuracy of installation.

[0016] 2. At the same time, through the setting of the through hole and the washer, first merge the sprocket and the sprocket seat together, with the bearing located in the through hole, and then insert the bolt from the mounting hole B into the mounting hole A. The nut is located on the left side of the sprocket, and the bolt corresponds to the bolt hole. Then rotate the nut, and the sprocket, sprocket seat and wheel seat can be stably connected into a whole through the washer, and the installation stability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the sprocket of the utility model;

[0019] Figure 3 This is a structural diagram of the wheel seat of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the sprocket seat of the utility model.

[0021] In the figure: 1. Wheel; 2. Sprocket; 3. Wheel seat; 4. Mounting cavity; 5. Sprocket seat; 6. Limiting ring; 7. Limiting groove; 8. Threaded hole; 9. Mounting hole A; 10. Mounting hole B; 11. Through hole; 12. Slot; 13. Bearing; 14. Block; 15. Bolt; 16. Nut; 17. Mounting groove; 18. Mounting ring; 19. Groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1: Figure 1-4 As shown: a wheel seat 3 is fixedly installed on the left side of the wheel 1, a mounting cavity 4 is opened on the left side of the wheel seat 3, a sprocket seat 5 with matching specifications is assembled in the mounting cavity 4, a limiting ring 6 with a relative position is fixedly installed on the left side of the sprocket seat 5, a limiting groove 7 with matching specifications is opened on the right side of the sprocket 2, six groups of threaded holes 8 with relative positions are opened in the mounting cavity 4, the sprocket seat 5 and the right side of the sprocket 2 are respectively opened with six groups of mounting holes A9 and mounting holes B10 with relative positions and passing through, and bolts 15 with matching specifications are assembled in the threaded holes 8. Through the arrangement of the mounting cavity 4, the limiting groove 7 and the bolt 15, the sprocket seat 5 is located in the mounting cavity 4, the sprocket 2 is fitted with the left side of the sprocket seat 5, the limiting groove 6 and the limiting ring 6 correspond to each other, and finally are connected and fixed by the bolt 15, so that the sprocket 2, the sprocket seat 5 and the wheel seat 3 are closely connected and limited to each other, thereby improving the accuracy of installation.

[0024] Example 2: Figure 2-4 As shown: a through hole 11 is provided on the right side of the sprocket 2, a bearing 13 of matching specifications is fixedly installed on the left side of the sprocket seat 5, and a nut 16 located on the left side of the sprocket 2 is fixedly installed on the left side of the bolt 15. The nut 16 is a regular hexagon, and a washer is assembled between the nut 16 and the sprocket 2. Through the arrangement of the through hole 11 and the washer, the sprocket 2 and the sprocket seat 5 are first merged together, the bearing 13 is located in the through hole 11, and then the bolt 15 is inserted from the mounting hole B10 into the mounting hole A9, the nut 16 is located on the left side of the sprocket 2, the bolt 15 corresponds to the bolt hole 8, and then the nut 16 is rotated. The sprocket 2, the sprocket seat 5 and the wheel seat 3 can be stably connected into a whole through the washer, and the installation stability is high.

[0025] Example 3: Figure 2-3 As shown: an annular mounting groove 17 is opened in the mounting cavity 4, and a mounting ring 18 of matching specifications is fixedly installed on the right side of the sprocket seat 5, so that the sprocket seat 5 can be limited and the stability and accuracy of the installation of the sprocket seat 5 can be improved.

[0026] The working principle and usage process of the utility model are as follows: when the device is needed to work, first combine the sprocket 2 and the sprocket seat 5 together, the bearing 13 is located in the through hole 11, and then insert the bolt 15 from the mounting hole B10 into the mounting hole A9, the nut 16 is located on the left side of the sprocket 2, the bolt 15 corresponds to the bolt hole 8, and then rotate the nut 16, and the sprocket 2, the sprocket seat 5 and the wheel seat 3 can be stably connected into a whole through the washer, and the installation stability is high. At the same time, the sprocket seat 5 is located in the installation cavity 4, the sprocket 2 fits in the left side of the sprocket seat 5, the limiting groove 6 and the limiting ring 6 correspond, and finally are connected and fixed by the bolt 15, so that the sprocket 2, the sprocket seat 5 and the wheel seat 3 are closely connected, and limit each other, thereby improving the accuracy of installation.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An anti-eccentricity motorcycle sprocket, comprising a wheel (1) and a sprocket (2) of matching specifications; Its characteristics are: A wheel seat (3) is fixedly mounted on the left side of the wheel (1), a mounting cavity (4) is provided on the left side of the wheel seat (3), a sprocket seat (5) of matching specifications is assembled in the mounting cavity (4), a limiting ring (6) of relative position is fixedly mounted on the left side of the sprocket seat (5), a limiting groove (7) of matching specifications is provided on the right side of the sprocket (2), six groups of threaded holes (8) of relative position are provided in the mounting cavity (4), six groups of mounting holes A (9) and mounting holes B (10) of relative position and penetrating are respectively provided on the right side of the sprocket seat (5) and the sprocket (2), and bolts (15) of matching specifications are assembled in the threaded holes (8); A through hole (11) is provided on the right side of the sprocket (2), a bearing (13) of matching specifications is fixedly installed on the left side of the sprocket seat (5), and a nut (16) located on the left side of the sprocket (2) is fixedly installed on the left side of the bolt (15), the nut (16) is a regular hexagon, and a washer is assembled between the nut (16) and the sprocket (2).

2. The anti-eccentricity motorcycle sprocket according to claim 1, characterized in that: An annular mounting groove (17) is provided in the mounting cavity (4), and a mounting ring (18) of matching specifications is fixedly mounted on the right side of the sprocket seat (5).

3. The anti-eccentricity motorcycle sprocket according to claim 1, characterized in that: Evenly distributed clamping grooves (12) are provided on the inner wall of the through hole (11), and a clamping block (14) of matching specifications is fixedly mounted on the outer wall of the bearing (13).

4. The anti-eccentricity motorcycle sprocket according to claim 1, characterized in that: The wheel seat (3) and the sprocket seat (5) have a thickness of 5 cm, and the diameter of the sprocket (2) is larger than the diameter of the wheel seat (3).

5. The anti-eccentricity motorcycle sprocket according to claim 1, characterized in that: Six groups of grooves (19) positioned opposite to each other are provided on the left side of the sprocket (2).

6. The anti-eccentricity motorcycle sprocket according to claim 1, characterized in that: The sprocket (2) is integrally formed.

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