High-performance motorcycle chain wheel with adjustable outer teeth

Abstract

The high-performance motorcycle chain wheel comprises a tooth inner disc, a plurality of sets of outer tooth rings, inner bolts, a cover plate and a plurality of outer bolts, an opening is formed in one side of the tooth inner disc, an inner cavity is formed in the inner side of the tooth inner disc, and the outer tooth rings are arranged on the outer side of the tooth inner disc in the mode that a circle is defined by the outer tooth rings in the radial direction of the tooth inner disc. Each outer tooth ring is fixedly connected with the tooth inner disc through an inner bolt located in an inner cavity of the tooth inner disc, the cover plate covers the opening of the tooth inner disc in a matched mode, and the cover plate is fixedly connected with the tooth inner disc through a plurality of outer bolts. According to the motorcycle chain wheel, the tooth-shaped structure on the motorcycle chain wheel can be replaced according to the abrasion condition after long-time use through the matched arrangement of the tooth inner disc, the outer tooth ring, the inner bolt, the cover plate and the outer bolt, so that the motorcycle chain wheel can be matched with a chain for use for a longer time, and the overall damage to the motorcycle chain wheel can be reduced; therefore, the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to motorcycle sprocket technical field, concretely is a kind of high-performance motorcycle sprocket with adjustable external teeth. BACKGROUND

[0002] Sprocket is an important component in motorcycle transmission system, its main function is to realize power transmission through cooperation with chain. The existing motorcycle sprocket usually adopts standard parts, its structure includes gear teeth and the tooth groove between gear teeth, and gear teeth cooperate with chain to transmit power.

[0003] However, there are some problems in the prior art motorcycle sprocket. The existing sprocket design usually cannot conveniently replace the external tooth structure, and once the sprocket is worn or needs to adapt to different transmission requirements, the entire sprocket needs to be replaced, which increases maintenance cost and inconvenience. SUMMARY

[0004] (I) technical problem solved

[0005] The utility model provides a kind of high-performance motorcycle sprocket with adjustable external teeth, solve the problem raised in the above background technology.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of high-performance motorcycle sprocket with adjustable external teeth, including tooth inner disc, multiple groups of external tooth ring and internal bolt, cover plate and several external bolts, the side opening of tooth inner disc and forming has inner cavity, multiple external tooth ring is set in tooth inner disc outside along tooth inner disc radial and forms a circle, each external tooth ring is connected and fixed by one internal bolt in the inner cavity of tooth inner disc, the cover plate is adapted to the opening of tooth inner disc and is covered, and cover plate and tooth inner disc are connected and fixed by several external bolts.

[0008] Preferably, the tooth inner disc includes base surface, annular frame, several positioning mounting seats and external seat, the annular frame is formed at the outer edge of base surface, so that the base surface and the annular frame form a disc structure with opening and inner cavity, the external seat is formed at the center of base surface, and the external seat is positioned and matched between the cover plate, and several positioning mounting seats are formed on the base surface, and the inner cavity of positioning mounting seat is provided with internal thread matched with external bolt.

[0009] It is further preferred in the further that the annular frame is set as annular structure with concave-convex alternation, the outer wall of the convex part of the annular frame is set as positioning surface matched with external tooth ring, the inner wall of the convex part of the annular frame is set as positioning recess matched with internal bolt, and the convex part of the annular frame is formed with through hole penetrating the annular frame.

[0010] In a further preferred embodiment, the outer tooth ring is formed with a positioning notch in the middle of the side facing the toothed disc, and the positioning notch is formed with a threaded hole matched with the internal bolt, and the middle of the side of the outer tooth ring facing away from the toothed disc is formed with tooth bottoms and tooth tops distributed alternately, and the tooth tops and tooth bottoms of the plurality of groups of outer tooth rings constitute a complete tooth profile structure of the motorcycle sprocket.

[0011] In a further preferred embodiment, the cover plate is shaped to match the shape of the annular frame, and the center of the cover plate is formed with an opening matched with the outer mounting seat.

[0012] (III) Advantages

[0013] Compared with the prior art, the utility model provides a high-performance motorcycle sprocket with adjustable outer teeth, which has the following advantages:

[0014] In the utility model, the tooth profile structure on the motorcycle sprocket can be replaced according to the wear condition after long-time use through the cooperation of the toothed disc, the outer tooth ring, the internal bolt, the cover plate and the external bolt, so that the motorcycle sprocket can be used with the chain for a longer time, and the overall damage of the motorcycle sprocket can be reduced, thereby improving the service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the high-performance motorcycle sprocket with adjustable outer teeth according to the embodiment.

[0016] Figure 2 It is a structural schematic view of the high-performance motorcycle sprocket with adjustable outer teeth according to the embodiment. Figure 1 It is a structural schematic view of the high-performance motorcycle sprocket with adjustable outer teeth according to the embodiment.

[0017] Figure 3 It is a structural schematic view of the toothed disc according to the embodiment.

[0018] Figure 4 It is a structural schematic view of the outer tooth ring according to the embodiment.

[0019] In the drawings: 10, toothed disc; 11, base surface; 12, annular frame; 121, positioning surface; 122, through hole; 123, positioning recessed area; 13, positioning mounting seat; 14, outer mounting seat; 20, outer tooth ring; 21, tooth top; 22, tooth bottom; 23, positioning notch; 24, threaded hole; 30, internal bolt; 40, cover plate; 50, external bolt. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0021] Please refer to Figure 1 and Figure 2 A high-performance motorcycle sprocket with adjustable external teeth comprises a tooth inner disc 10, multiple groups of external tooth rings 20 and internal bolts 30, a cover plate 40 and multiple external bolts 50. The tooth inner disc 10 is open on one side and has an inner cavity, and multiple external tooth rings 20 are arranged on the outer side of the tooth inner disc 10 in a circle along the radial direction of the tooth inner disc 10, and each external tooth ring 20 is connected and fixed with the tooth inner disc 10 by an internal bolt 30 located in the inner cavity of the tooth inner disc 10. The cover plate 40 is adapted to the opening of the tooth inner disc 10 and covers it, and the cover plate 40 and the tooth inner disc 10 are connected and fixed by multiple external bolts 50. There is a gap between every two adjacent external tooth rings 20 in multiple groups of external tooth rings 20, and the tooth top 21 and the tooth bottom 22 on multiple groups of external tooth rings 20 constitute the complete tooth profile structure of the motorcycle sprocket. Damaged external tooth rings 20 can be replaced to avoid the motorcycle sprocket as a whole.

[0022] Please refer to Figure 3 The tooth inner disc 10 comprises a base surface 11, an annular frame 12, multiple positioning mounting seats 13 and an external seat 14. The annular frame 12 is formed at the outer edge of the base surface 11, so that the base surface 11 and the annular frame 12 constitute a disc-shaped structure with an opening and an inner cavity. The external seat 14 is formed at the center of the base surface 11, and the external seat 14 can be used for flat key clamping connection between the motorcycle sprocket as a whole and the shaft body, and the external seat 14 can also be positioned and matched with the cover plate 40. Multiple positioning mounting seats 13 are formed on the base surface 11, and the inner cavity of the positioning mounting seat 13 is provided with an internal thread matched with the external bolt 50, so that after the cover plate 40 is positioned and placed, the cover plate 40 can be fixed by tightening the external bolt 50.

[0023] In the present embodiment, the annular frame 12 is arranged as a ring-shaped structure with concave-convex alternation. The outer wall of the convex part of the annular frame 12 is arranged as a positioning surface 121 matched with the external tooth ring 20, so that it can be positioned and placed. The inner wall of the convex part of the annular frame 12 is arranged as a positioning recess 123 matched with the internal bolt 30, and the inner top wall of the positioning recess 123 is arranged as a plane, so that the internal bolt 30 can be stably tightened. The convex part of the annular frame 12 is formed with a through hole 122 penetrating through the annular frame 12, and the internal bolt 30 can pass through the through hole 122.

[0024] Please refer toFigure 4 The outer tooth ring 20 is formed with a positioning notch 23 in the middle of the side facing the tooth inner disc 10, which is matched with the positioning surface 121 to be placed. The positioning notch 23 is formed with a threaded hole 24 matched with the inner bolt 30, so that the inner bolt 30 passing through the through hole 122 can be screwed into the threaded hole 24. The middle of the side of the outer tooth ring 20 away from the tooth inner disc 10 is formed with tooth bases 22 and tooth tops 21 distributed alternately.

[0025] Referring to Figure 2 The cover plate 40 is shaped to match the shape of the annular frame 12, and the center of the cover plate 40 is formed with an opening matched with the outer seat 14, so that the cover plate 40 can be positioned and fixed in a unique position.

[0026] In all the above-mentioned solutions, the connection between the 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 described one by one. In the above, whenever it is mentioned that it is fixedly connected, it is preferred to consider welding. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high performance motorcycle sprocket with externally adjustable teeth, characterized in that, The application relates to a toothed disc (10), a plurality of outer tooth rings (20) and inner bolts (30), a cover plate (40) and a plurality of outer bolts (50), wherein one side of the toothed disc (10) is open and forms an inner cavity, a plurality of the outer tooth rings (20) are arranged on the outer side of the toothed disc (10) in a circle along the radial direction of the toothed disc (10), each outer tooth ring (20) is connected and fixed with the toothed disc (10) by an inner bolt (30) arranged in the inner cavity of the toothed disc (10), the cover plate (40) is matched with the opening of the toothed disc (10) and covers the toothed disc (10), and the cover plate (40) and the toothed disc (10) are connected and fixed by the plurality of outer bolts (50).

2. A high performance motorcycle sprocket with externally adjustable teeth according to claim 1, characterized in that: The toothed disc (10) comprises a base surface (11), an annular frame (12), a plurality of positioning mounting bases (13) and an outer connecting base (14), the annular frame (12) is formed at the outer edge of the base surface (11), so that the base surface (11) and the annular frame (12) form a disc structure with an opening and an inner cavity, the outer connecting base (14) is formed at the center of the base surface (11) and is positioned and matched with the cover plate (40), and the plurality of positioning mounting bases (13) are formed on the base surface (11) and are provided with inner threads matched with the outer bolts (50) in the inner cavities of the positioning mounting bases (13).

3. A high performance motorcycle sprocket with externally adjustable teeth according to claim 2, characterized in that: The annular frame (12) is arranged in a ring structure with concave-convex alternation, the outer wall of the convex part of the annular frame (12) is arranged as a positioning surface (121) matched with the outer tooth ring (20), the inner wall of the convex part of the annular frame (12) is arranged as a positioning recessed area (123) matched with the inner bolt (30), and the convex part of the annular frame (12) is formed with a through hole (122) penetrating through the annular frame (12).

4. A high performance motorcycle sprocket with externally adjustable teeth according to claim 3, characterized in that: The middle part of one side of the outer tooth ring (20) facing the toothed disc (10) is formed with a positioning notch (23) matched with the positioning surface (121), and the positioning notch (23) is formed with a threaded hole (24) matched with the inner bolt (30), and the middle part of the side of the outer tooth ring (20) facing away from the toothed disc (10) is formed with tooth bottoms (22) and tooth tops (21) distributed alternately.

5. A high performance motorcycle sprocket with externally adjustable teeth according to claim 4, characterized in that: The gap exists between every two adjacent outer tooth rings (20) in the plurality of groups of the outer tooth rings (20), and the tooth tops (21) and the tooth bottoms (22) on the plurality of groups of the outer tooth rings (20) form a complete tooth profile structure of a motorcycle sprocket.

6. A high performance motorcycle sprocket with externally adjustable teeth according to any one of claims 2-5, characterized in that: The shape of the cover plate (40) is matched with the shape of the annular frame (12), and the center of the cover plate (40) is formed with an opening matched with the outer connecting base (14).

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