Wear-resistant motorcycle chain wheel with protection device

Abstract

The utility model discloses a wear-resistant motorcycle chain wheel with a protection device, which relates to the technical field of chain wheels and comprises a chain wheel, a protection component, a sewage draining component and a sewage draining component, and the chain wheel is used for transmitting rotary motion and power of a shaft and is positioned at one end of the chain wheel adjacent to the protection component. According to the utility model, the chain wheel is installed on the first gear shaft, then the large gear and the protection plate are installed, the second gear shaft is installed on the protection plate, and then the small gear and the windmill are installed on the second gear shaft, so that the installation operation is completed; when the chain wheel rotates under the action of the motorcycle driving motor, the large gear on the first gear shaft can be driven to rotate, so that the small gear and the windmill are driven to rotate, dirt attached to the chain wheel is cleaned through rotating force of the windmill, abrasion of grit to the chain wheel is reduced, corrosion of sewage to the chain wheel is avoided, and the service life of the chain wheel is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sprockets, in particular to a wear-resistant motorcycle sprocket with a protective device. Background Art

[0002] There are three commonly used transmission systems for motorcycles: chain drive, belt drive and shaft drive. Among them, chain drive has the advantages of high transmission efficiency, cheap manufacturing and easy replacement, making it the most commonly used transmission system for motorcycles, and the sprocket is the most important component in the chain drive system.

[0003] The sprocket is generally directly exposed to the outside. When a motorcycle passes through a muddy road, muddy water can easily splash onto the sprocket. The gravel and other debris in the muddy water can accelerate the wear of the sprocket. The muddy water can also corrode the sprocket. Moreover, the exposed sprocket can easily be scratched by external objects. For this reason, a wear-resistant motorcycle sprocket with a protective device is provided (see patent number: 201721856869.1 for details). An outer plate and an inner plate with a diameter larger than the sprocket body are fixed on both sides of the sprocket body. Both the outer plate and the inner plate are provided with mounting holes and position marks, and the inner plate is provided with a An axial hole with the same diameter as the axial center hole is provided with a second keyway matching the above-mentioned first keyway, and a position mark is located directly above the second keyway. On the sprocket body, raised mounting blocks are provided on both sides of the first keyway, and a mounting groove matching the above-mentioned mounting hole is provided on the inner plate. The utility model arranges an outer plate and an inner plate on the original sprocket to effectively block the entry of some dust, thereby reducing the wear of the sprocket and extending the service life. In addition, position marks are arranged on the outer plate and the inner plate to facilitate the assembly of various components. The utility model has the advantages of simple structure, convenience, practicality and easy maintenance.

[0004] However, the existing sprocket with a protective device can only block some debris from entering, and there is a problem that the debris and sewage on the sprocket cannot be cleaned in time. If the debris attached to the sprocket cannot be cleaned in time, the wear of the sprocket will be aggravated, and the sewage on the sprocket will also corrode the sprocket, reducing the service life of the sprocket. Utility Model Content

[0005] The purpose of the utility model is to provide a wear-resistant motorcycle sprocket with a protective device in order to solve the problem that the sprocket lacks protection, external objects may collide with the sprocket, and the debris and sewage on the sprocket cannot be cleaned in time, thereby accelerating the wear and corrosion of the sprocket.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a wear-resistant motorcycle sprocket with a protective device, comprising:

[0007] Sprockets, used to transmit the rotational motion and power of the shaft;

[0008] A guard assembly, located at one end of the sprocket;

[0009] a blowdown assembly located at one end adjacent to the sprocket and guard assembly;

[0010] A through hole is provided at the middle position of one end of the sprocket, and the protective assembly includes a first gear shaft, a sprocket key is provided at one end of the outer side of the first gear shaft, a first sleeve is provided at one end of the sprocket key, a large gear key is provided at one end of the first sleeve away from the sprocket key and located at the top of the first gear shaft, a second sleeve is provided at one end of the large gear key away from the first sleeve, a bearing is provided at one end of the second sleeve away from the large gear key, a protective plate is sleeved on the outside of the bearing, and a mounting hole is provided on the top of one end of the protective plate, and the sewage discharge assembly includes a windmill, a second gear shaft is provided at the middle position of one end of the windmill, a key tooth is provided at the end of the second gear shaft close to the windmill, a pinion key is provided at the end of the second gear shaft close to the windmill, a pinion gear is sleeved on the outside of the pinion key, a large gear is sleeved on the outside of the large gear key and located on the end face adjacent to the sprocket and the protective plate, and the pinion gear meshes with the large gear.

[0011] As a further solution of the utility model: the sprocket, the large gear key, the first sleeve, the second sleeve, the bearing and the protective plate are all located on the outside of the first gear shaft.

[0012] As a further solution of the present invention: the first sleeve, the second sleeve, the bearing and the protective plate are all rotatably connected to the first gear shaft.

[0013] As a further solution of the utility model: the sprocket is connected to the first gear shaft by a sprocket key, and the large gear is connected to the first gear shaft by a large gear key.

[0014] As a further solution of the utility model: the windmill is connected to the second gear shaft by a key tooth, and the pinion is connected to the second gear shaft by a pinion key.

[0015] As a further solution of the utility model: the end of the second gear shaft away from the windmill is rotatably connected to the protective plate through a mounting hole.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. Through the sewage discharge component that is set, when in use, the sprocket rotates under the action of the motorcycle driving motor, and carries the first gear shaft to rotate under the action of the sprocket key, and drives the large gear to rotate under the action of the large gear key. At the same time, since the large gear is meshed and connected with the small gear, the small gear can be rotated in the opposite direction of the large gear. At the same time, under the action of the mounting hole, the second gear shaft rotates, and carries the windmill to rotate under the action of the key teeth, so that the reverse rotation force of the windmill can be used to generate an outward driving force for the dirt contaminated on the sprocket, thereby ensuring the cleanliness of the outside of the sprocket. When the motorcycle passes through a muddy road, mud, water and gravel adhere to the sprocket, the windmill will blow the gravel off in time, and the sewage on the sprocket will also be blown dry by the windmill, thereby reducing the wear of the sprocket on the gravel, and avoiding the corrosion of the sprocket on the sewage, thereby increasing its service life.

[0018] 2. By setting up a protective component, the first gear shaft is rotatably connected to the protective plate by means of a bearing, so that the protective plate is not affected by the rotation during the process of protecting the sprocket by means of the bearing. At the same time, the protective plate is located on the outside of the motorcycle, so that it can avoid direct impact of the outside on the sprocket. Then, in combination with the windmill on the sewage discharge component, the wind force generated by the rotation of the windmill is used to blow part of the dry dirt off the sprocket, thereby ensuring the cleanliness of the sprocket, improving the life of the sprocket to a certain extent, and reducing the wear between the sprocket and the chain belt, making its movement more sensitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a partial three-dimensional schematic diagram of the utility model.

[0022] In the figure: 1. sprocket; 101. through hole; 2. protective assembly; 201. first gear shaft; 202. sprocket key; 203. first sleeve; 204. large gear key; 205. second sleeve; 206. bearing; 207. protective plate; 208. mounting hole; 3. sewage discharge assembly; 301. large gear; 302. small gear; 303. small gear key; 304. second gear shaft; 305. key tooth; 306. windmill. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0025] See also Figures 1 to 3 In an embodiment of the utility model, a wear-resistant motorcycle sprocket with a protective device comprises:

[0026] Sprocket 1, used to transmit the rotational motion and power of the shaft;

[0027] A protection component 2 is located at one end of the sprocket 1;

[0028] A sewage discharge assembly 3 is located at one end adjacent to the sprocket 1 and the protection assembly 2;

[0029] A through hole 101 is provided at the middle position of one end of the sprocket 1, and the protective component 2 includes a first gear shaft 201, a sprocket key 202 is provided at one end of the outer side of the first gear shaft 201, a first sleeve 203 is provided at one end of the sprocket key 202, a large gear key 204 is provided at one end of the first sleeve 203 away from the sprocket key 202 and located at the top of the first gear shaft 201, a second sleeve 205 is provided at one end of the large gear key 204 away from the first sleeve 203, a bearing 206 is provided at one end of the second sleeve 205 away from the large gear key 204, and a protective plate 207 is provided on the outer side of the bearing 206 A mounting hole 208 is provided at the top of one end of the protective plate 207, and the sewage discharge component 3 includes a windmill 306. A second gear shaft 304 is provided at the middle position of one end of the windmill 306, and a key tooth 305 is provided at the end of the second gear shaft 304 near the windmill 306. A small gear key 303 is provided at the end of the second gear shaft 304 near the windmill 306. A small gear 302 is sleeved on the outer side of the small gear key 303, and a large gear 301 is sleeved on the outer side of the large gear key 204 and located on the end face adjacent to the sprocket 1 and the protective plate 207, and the small gear 302 is meshed with the large gear 301.

[0030] Please refer to Figure 1 and 2 The sprocket 1, the large gear key 204, the first sleeve 203, the second sleeve 205, the bearing 206 and the protective plate 207 are all located on the outside of the first gear shaft 201, which is convenient for the installation of the protective assembly.

[0031] Please refer to Figure 1 and 2 The first sleeve 203 , the second sleeve 205 , the bearing 206 and the protective plate 207 are all rotatably connected to the first gear shaft 201 , so that the first gear shaft 201 can transmit power from the sprocket 1 .

[0032] Please refer to Figure 1 and 2 The sprocket 1 is connected to the first gear shaft 201 through the sprocket key 202, and the large gear 301 is connected to the first gear shaft 201 through the large gear key 204, so that when the sprocket 1 rotates, it can drive the first gear shaft 201 and the large gear 301 to rotate.

[0033] Please refer to Figure 1 , 2 And 3, the windmill 306 is connected to the second gear shaft 304 by the key teeth 305, and the pinion 302 is connected to the second gear shaft 304 by the pinion key 303, so that when the pinion shaft 302 rotates, the second gear shaft can be driven to rotate.

[0034] Please refer to Figure 1 , 2and 3, one end of the second gear shaft 304 away from the windmill 306 is rotatably connected to the protective plate 207 through the mounting hole 208, so that the protective plate 207 is not affected by the rotation when protecting the sprocket.

[0035] The working principle of the utility model is: fix the device, install the sprocket 1 on the first gear shaft 201 through the sprocket key 202, then install the first sleeve 203, install the large gear 301 on the first gear shaft 201 through the large gear key 204, then install the second sleeve 205 and the bearing 206, finally install the protective plate 207, install the second gear shaft 304 on the protective plate 207 through the mounting hole 208 of the protective plate 207, install the small gear 302 on the second gear shaft 304 through the small gear key 303, and finally install the windmill 306 on the second gear shaft 304 through the key tooth 305 to complete the installation operation. When in use, the sprocket 1 rotates under the action of the motorcycle drive motor, and carries the first gear shaft 201 to rotate under the action of the sprocket key 202. , the large gear 301 is driven to rotate under the action of the large gear key 204. At the same time, since the large gear 301 is meshed with the small gear 302, the small gear 302 can be rotated in the opposite direction of the large gear 301. At the same time, under the action of the mounting hole 208, the second gear shaft 304 is rotated, and the windmill 306 is driven to rotate under the action of the key tooth 305, so that the reverse rotation force of the windmill can be used to generate an outward driving force for the dirt on the sprocket 1, thereby ensuring the cleanliness of the outside of the sprocket 1. When the motorcycle passes through a muddy road, mud, water and gravel adhere to the sprocket 1, the windmill will blow the gravel off in time, and the sewage on the sprocket 1 will also be blown dry by the windmill, thereby reducing the wear of the gravel on the sprocket 1, and avoiding the corrosion of the sprocket 1 by sewage, thereby increasing its service life.

[0036] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wear-resistant motorcycle sprocket with a protective device, characterized in that: include: A sprocket (1) for transmitting the rotational motion and power of the shaft; A protective assembly (2) is located at one end of the sprocket (1); A sewage discharge assembly (3) is located at one end adjacent to the sprocket (1) and the protection assembly (2); A through hole (101) is provided at a middle position of one end of the sprocket (1); the protective component (2) comprises a first gear shaft (201); a sprocket key (202) is provided at one end of the first gear shaft (201); a first sleeve (203) is provided at one end of the sprocket key (202); a large gear key (204) is provided at one end of the first sleeve (203) away from the sprocket key (202) and located at the top of the first gear shaft (201); a second sleeve (205) is provided at one end of the large gear key (204) away from the first sleeve (203); a bearing (206) is provided at one end of the second sleeve (205) away from the large gear key (204); and a protective plate (207) is provided on the outer side of the bearing (206). The top of one end of the protective plate (207) is provided with a mounting hole (208), the sewage discharge assembly (3) includes a windmill (306), a second gear shaft (304) is provided at a middle position of one end of the windmill (306), a key tooth (305) is provided on the outside of the second gear shaft (304) at one end close to the windmill (306), a small gear key (303) is provided on the outside of the second gear shaft (304) at one end close to the windmill (306), a small gear (302) is sleeved on the outside of the small gear key (303), a large gear (301) is sleeved on the end face of the large gear key (204) adjacent to the sprocket (1) and the protective plate (207), and the small gear (302) is meshed with the large gear (301).

2. A wear-resistant motorcycle sprocket with a protective device according to claim 1, characterized in that: The sprocket (1), the large gear key (204), the first sleeve (203), the second sleeve (205), the bearing (206) and the protective plate (207) are all located outside the first gear shaft (201).

3. A wear-resistant motorcycle sprocket with a protective device according to claim 1, characterized in that: The first sleeve (203), the second sleeve (205), the bearing (206) and the protection plate (207) are all rotatably connected to the first gear shaft (201).

4. A wear-resistant motorcycle sprocket with a protective device according to claim 1, characterized in that: The sprocket (1) is connected to the first gear shaft (201) by a sprocket key (202), and the large gear (301) is connected to the first gear shaft (201) by a large gear key (204).

5. The wear-resistant motorcycle sprocket with a protective device according to claim 1, characterized in that: The windmill (306) is connected to the second gear shaft (304) by means of a key tooth (305), and the pinion (302) is connected to the second gear shaft (304) by means of a pinion key (303).

6. A wear-resistant motorcycle sprocket with a protective device according to claim 1, characterized in that: One end of the second gear shaft (304) away from the windmill (306) is rotatably connected to the protection plate (207) via the mounting hole (208).

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