Combined motorcycle chain wheel with long service life

Abstract

The utility model relates to a combined type long-service-life motorcycle chain wheel which comprises a wheel disc unit, a plurality of tooth section units and clamping piece units, the number of the clamping piece units is two times that of the tooth section units, and the tooth section units are evenly inserted in the outer side of the wheel disc unit in the radial direction of the wheel disc unit. The two opposite sides of each tooth pitch unit are each provided with a clamping piece unit, the two clamping piece units on the two opposite sides of each tooth pitch unit are symmetrically distributed, and fasteners are inserted into the two opposite clamping piece units, so that the clamping piece units and the tooth pitch units are detachably connected and fixed to the wheel disc unit. Through cooperative arrangement of the wheel disc unit, the tooth pitch unit and the clamping piece unit, after the motorcycle chain wheel is used for a period of time, replacement and maintenance can be carried out through disassembly of the clamping piece unit and the tooth pitch unit when part of wheel teeth are abraded, so that overall replacement of the motorcycle chain wheel can be avoided, and then the maintenance cost is reduced; and the service life of the whole motorcycle chain wheel is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle sprocket technology, specifically a combined long-life motorcycle sprocket. Background Technology

[0002] In a motorcycle drivetrain, the sprocket is a critical transmission component, and its performance and lifespan directly affect the overall running quality and reliability of the motorcycle. Traditional motorcycle sprockets typically use a one-piece structure, where the sprocket and the sprocket are formed as a single piece through processes such as casting and forging. This structure has revealed many problems during long-term use.

[0003] Because the sprocket and chain are integrated, when the sprocket is damaged due to wear, breakage, or other reasons, it cannot be replaced individually; the entire sprocket must be replaced. This increases maintenance costs. During operation, the meshing area between the sprocket and the chain is directly exposed, making it susceptible to the intrusion of dust, mud, rainwater, and other impurities, thus accelerating component aging and damage. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a combined long-life motorcycle sprocket, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a combined long-life motorcycle sprocket, comprising a sprocket unit, several toothed segments, and a clamping unit twice the number of toothed segments. Several toothed segments are evenly inserted radially on the outside of the sprocket unit. Each toothed segment has a clamping unit on each of its opposite sides, and the two clamping units on opposite sides of the toothed segment are symmetrically distributed. Fasteners are inserted at each of the two opposite clamping units, so that the clamping units and toothed segments are detachably connected and fixed to the sprocket unit.

[0008] Preferably, the outer edge of the wheel unit has a number of positioning slots equal to the number of toothed segments, and the positioning slots are evenly distributed along the radial direction of the wheel unit. The wheel unit has a plurality of toothed segment connecting holes that penetrate the wheel unit. The toothed segment connecting holes and the positioning slots are used to cooperate with the positioning and connection of the toothed segments.

[0009] In a further preferred embodiment, the toothed segment unit has a snap-fit ​​groove on the side facing the wheel unit, and the toothed segment unit and the wheel unit are respectively fitted together by the snap-fit ​​groove and the positioning slot. The toothed segment unit also has at least one wheel connection hole that penetrates the toothed segment unit, and the wheel connection hole and the adjacent toothed segment connection hole are coaxially distributed.

[0010] In a further preferred embodiment, the clamping unit includes a fixing plate, on which a number of combined connecting holes equal to the number of wheel connecting holes are formed. The combined connecting holes are coaxially distributed with adjacent wheel connecting holes. Bolts penetrating the wheel connecting holes and the gear connecting holes are inserted into the combined connecting holes. The bolts, in conjunction with nuts, connect and fix the gear unit and the clamping unit to the wheel unit. The fixing plate is fan-shaped, and the fixing plates in several clamping units can be combined to form a ring. The clamping unit also includes a protective plate, on which a positioning step is formed on the side near the fixing plate. The protective plate is inserted into the outer edge of the fixing plate using the positioning step. The fixing plate has at least one outward connecting hole penetrating the combined connecting holes. A screw connecting the outward connecting hole and the protective plate is inserted into the positioning step.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a combined long-life motorcycle sprocket, which has the following beneficial effects:

[0013] In this invention, the combination of the wheel disc unit, the toothed joint unit, and the clamping plate unit allows the motorcycle sprocket to be replaced and maintained after a period of use when some teeth are worn. This avoids the need to replace the entire motorcycle sprocket, thereby reducing maintenance costs and extending the overall service life of the motorcycle sprocket. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the disassembled structure of the combined long-life motorcycle sprocket according to the implementation plan.

[0015] Figure 2 for Figure 1 A schematic diagram of the combined long-life motorcycle sprocket assembly.

[0016] Figure 3 This is a structural schematic diagram of the roulette unit according to the implementation plan;

[0017] Figure 4 This is a structural schematic diagram of the toothed joint unit according to the implementation plan;

[0018] Figure 5This is a schematic diagram of the clip unit according to the implementation scheme.

[0019] In the diagram: 10, wheel unit; 11, positioning slot; 12, toothed joint connection hole; 20, toothed joint unit; 21, snap-fit ​​groove; 22, wheel connection hole; 30, clamping plate unit; 31, fixing plate; 311, combined connection hole; 312, outward expansion connection hole; 32, protective plate; 321, positioning step. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 and Figure 2 A combined long-life motorcycle sprocket includes a sprocket unit 10, several toothed link units 20, and clamping units 30, which are twice the number of toothed link units 20. The toothed link units 20 are evenly inserted radially outwards from the sprocket unit 10, forming a toothed structure for engaging the chain. Each toothed link unit 20 has a clamping unit 30 on each opposite side, and the two clamping units 30 on opposite sides of each toothed link unit 20 are symmetrically distributed. Fasteners such as bolts are inserted into the two opposite clamping units 30, allowing the clamping units 30 and toothed link units 20 to be detachably connected and fixed to the sprocket unit 10 as a single unit.

[0022] See Figure 3 The outer edge of the wheel unit 10 has a number of positioning slots 11 equal to the number of toothed units 20, and the positioning slots 11 are evenly distributed radially along the wheel unit 10. The wheel unit 10 also has a plurality of toothed connection holes 12 penetrating through it, located near the positioning slots 11. The toothed connection holes 12 and the positioning slots 11 are used for positioning and connecting the toothed units 20, respectively.

[0023] See Figure 4The toothed joint unit 20 has a snap-fit ​​groove 21 on the side facing the wheel unit 10. The toothed joint unit 20 and the wheel unit 10 are connected by interlocking using the snap-fit ​​groove 21 and the positioning slot 11, respectively. The toothed joint unit 20 also has at least one wheel connection hole 22 that penetrates through the toothed joint unit 20. The wheel connection hole 22 and the adjacent toothed joint connection hole 12 are coaxially distributed and are used together to connect with the clamping unit 30.

[0024] See Figure 5 The clamping unit 30 includes a fixing plate 31 and a protective plate 32. The fixing plate 31 is fan-shaped, and several fixing plates 31 in the clamping units 30 can be combined to form a ring. The fixing plate 31 has a number of combination connection holes 311 equal to the number of wheel connection holes 22. The combination connection holes 311 are coaxially distributed with the adjacent wheel connection holes 22, so that after inserting a bolt into the combination connection hole 311 of the fixing plate 31, the toothed unit 20 and the clamping unit 30 can be connected and fixed to the wheel unit 10 by using the bolt and nut that pass through the wheel connection hole 22 and the toothed joint connection hole 12. When replacing the toothed joint unit 20, the bolt can be loosened to separate the bolt from the nut, and the corresponding clamping unit 30 and toothed joint unit 20 can be removed. The toothed joint unit 20 with severe wear can be replaced. The protective plate 32 has a positioning step portion 321 on the side near the fixing plate 31. The protective plate 32 is inserted into the outer edge of the fixing plate 31 by means of the positioning step portion 321. The fixing plate 31 has at least one extended connecting hole 312 through the combined connecting hole 311, and a screw is inserted at the positioning step 321 to connect and fix the extended connecting hole 312 and the protective plate 32 together. The protective plates 32 in the several clamping plate units 30 together form an annulus with an outer diameter larger than the outer diameter of the several toothed plate units 20, so that the protective plates 32 in the several clamping plate units 30 provide a certain degree of protection on the opposite sides of the motorcycle sprocket and chain, thereby preventing external dust, mud, rainwater and other impurities from splashing from the side to the toothed plate unit 20 during the motorcycle's operation.

[0025] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combined long-life motorcycle sprocket, characterized in that, The assembly includes a wheel unit (10), several toothed segments (20), and a clamping unit (30) twice the number of toothed segments (20). Several toothed segments (20) are evenly inserted radially on the outside of the wheel unit (10). Each toothed segment (20) has a clamping unit (30) on each opposite side, and the two clamping units (30) on opposite sides of the toothed segment (20) are symmetrically distributed. Fasteners are inserted at the two opposite clamping units (30), so that the clamping units (30) and the toothed segments (20) are detachably connected and fixed to the wheel unit (10).

2. The combined long-life motorcycle sprocket according to claim 1, characterized in that: The outer edge of the wheel unit (10) has a number of positioning slots (11) equal to the number of toothed joint units (20). The positioning slots (11) are evenly distributed along the radial direction of the wheel unit (10). The wheel unit (10) has a plurality of toothed joint connecting holes (12) that penetrate the wheel unit (10). The toothed joint connecting holes (12) and the positioning slots (11) are used to cooperate with the positioning and connection of the toothed joint units (20).

3. A combined long-life motorcycle sprocket according to claim 2, characterized in that: The toothed unit (20) has a snap-fit ​​groove (21) on the side facing the wheel unit (10). The toothed unit (20) and the wheel unit (10) are respectively fitted together by the snap-fit ​​groove (21) and the positioning slot (11). The toothed unit (20) also has at least one wheel connection hole (22) that penetrates the toothed unit (20). The wheel connection hole (22) and the adjacent toothed connection hole (12) are coaxially distributed.

4. A combined long-life motorcycle sprocket according to claim 3, characterized in that: The clamping unit (30) includes a fixing plate (31), on which a number of combination connecting holes (311) are formed equal to the number of wheel connecting holes (22), and the combination connecting holes (311) are coaxially distributed with the adjacent wheel connecting holes (22).

5. A combined long-life motorcycle sprocket according to claim 4, characterized in that: A bolt is inserted through the wheel disk connection hole (22) and the toothed joint connection hole (12) at the combined connection hole (311). The bolt and the nut connect and fix the toothed joint unit (20) and the clamping plate unit (30) to the wheel disk unit (10).

6. A combined long-life motorcycle sprocket according to claim 5, characterized in that: The fixing piece (31) is configured as a fan shape, and the fixing pieces (31) in several clamping units (30) can be combined together to form a ring.

7. A combined long-life motorcycle sprocket according to any one of claims 4-6, characterized in that: The clamping unit (30) also includes a protective plate (32). The protective plate (32) has a positioning step (321) on the side near the fixing plate (31). The protective plate (32) is inserted into the outer edge of the fixing plate (31) using the positioning step (321). The fixing plate (31) has at least one outward connecting hole (312) that passes through the combined connecting hole (311). A screw is inserted at the positioning step (321) to connect the outward connecting hole (312) and the protective plate (32).

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