阅读说明：本技术 一种摩托车后驱动传动用静音驱动链系统及摩托车 (Motorcycle rear drive transmission is with silence drive chain system and motorcycle ) 是由 付振明 刘毅 李存志 王魁 戴龙杰 金玉谟 于 2020-11-25 设计创作，主要内容包括：一种摩托车后驱动传动用静音驱动链系统,涉及摩托车链传动技术领域,包括小链轮、大链轮、以及静音驱动链,静音驱动链为齿形链,包括：外链板、内链板、导板、销轴、套筒和减震密封圈；套筒与内链板、导板的安装孔过盈配合,并与内链板、导板一起构成内链节,销轴贯穿于套筒内,并与套筒间隙配合,销轴的两端与外链板的安装孔过盈配合,并与外链板一起构成外链节,外链节与内链节之间设有减震密封圈。本发明通过对摩托车的静音驱动链及其链传动系统的创新设计,克服了传统链传动的技术局限,能够使摩托车在高速剧烈运动时依然保持链传动系统的稳定和低噪声,满足高端摩托车的个性化低噪声高耐磨的需要,并可有效避免危险事故的发生。(The utility model provides a motorcycle rear drive is silence drive chain system for transmission, relates to motorcycle chain drive technical field, including little sprocket, big sprocket and silence drive chain, the silence drive chain is the profile of tooth chain, includes: the outer chain plate, the inner chain plate, the guide plate, the pin shaft, the sleeve and the damping sealing ring; the sleeve is in interference fit with the mounting holes of the inner chain plate and the guide plate and forms an inner chain link together with the inner chain plate and the guide plate, the pin shaft penetrates through the sleeve and is in clearance fit with the sleeve, two ends of the pin shaft are in interference fit with the mounting holes of the outer chain plate and form an outer chain link together with the outer chain plate, and a damping sealing ring is arranged between the outer chain link and the inner chain link. The invention overcomes the technical limitation of the traditional chain transmission through the innovative design of the mute driving chain and the chain transmission system thereof of the motorcycle, can ensure that the motorcycle still keeps the stability and low noise of the chain transmission system when in high-speed violent movement, meets the requirements of individuation, low noise and high wear resistance of high-end motorcycles, and can effectively avoid the occurrence of dangerous accidents.)

1. A silent driving chain system for motorcycle rear driving transmission is characterized in that: including little sprocket, big sprocket and transmission connection in little sprocket and big silence drive chain who links between the wheel, little sprocket can dismantle fixed connection with the motor of motorcycle or the output shaft of engine, big sprocket can dismantle fixed connection with the rear wheel axle of motorcycle, silence drive chain be the profile of tooth chain, include: the outer chain plate, the inner chain plate, the guide plate, the pin shaft, the sleeve and the damping sealing ring; the sleeve is in interference fit with the mounting holes of the inner chain plate and the guide plate and forms an inner chain link together with the inner chain plate and the guide plate, the pin shaft penetrates through the sleeve and is in clearance fit with the sleeve, two ends of the pin shaft are in interference fit with the mounting holes of the outer chain plate and form an outer chain link together with the outer chain plate, and a damping sealing ring is arranged between the outer chain link and the inner chain link.

2. A silent drive chain system for motorcycle rear drive transmission as claimed in claim 1, wherein: the guide plate is located in the middle of the outer surface of the sleeve, the inner chain plates are symmetrically arranged on two sides of the guide plate, the damping sealing ring is sleeved on the end portion of the sleeve, and the inner end face and the outer end face of the damping sealing ring are respectively abutted to the outer surface of the inner chain plate and the inner surface of the outer chain plate.

3. A silent drive chain system for motorcycle rear drive transmission as claimed in claim 2, wherein: the engagement of the mute driving chain with the small chain wheel and the large chain wheel is an internal and external composite engagement mechanism or the engagement of the mute driving chain with the large chain wheel adopts an internal engagement mechanism; the number of teeth of the small chain wheel and the large chain wheel is 13-72 teeth.

4. A silent drive chain system for motorcycle rear drive transmission as claimed in any one of claims 1 to 3, wherein: the motorcycle rear fork is characterized by further comprising a chain support, wherein the chain support comprises an inverted U-shaped support and a bearing piece connected between openings at the bottom end of the support, the top end of the support is detachably and fixedly connected with the outer surface of one side, close to the large chain wheel, of the motorcycle rear fork, the silent driving chain penetrates through the support and is matched with the bearing piece for use, and the bearing piece is made of light wear-resistant materials.

5. A silent drive chain system for motorcycle rear drive transmission as claimed in claim 3, wherein: the tooth forms of the small chain wheel and the large chain wheel can adopt involute tooth forms or linear tooth forms; the large chain wheel and the small chain wheel adopt involute tooth form pressure angle of 30-40 degrees; the tooth form half angle of the inner chain plate and the outer chain plate of the mute driving chain is 30-40 degrees; .

6. A silent drive chain system for motorcycle rear drive transmission as claimed in claim 5, wherein: the tooth form half angle of the silent driving chain inner chain plate and the silent driving chain outer chain plate is 35 degrees.

7. A silent drive chain system for motorcycle rear drive transmission as claimed in claim 5, wherein: the tooth profiles of the large chain wheel and the small chain wheel are involute tooth profiles, and the pressure angle is 35 degrees.

8. A silent drive chain system for motorcycle rear drive transmission as claimed in any one of claims 1 to 3 and 5 to 7, wherein: the cross section of the damping sealing ring is O-shaped, X-shaped, or + shaped, M-shaped, or Z-shaped.

9. A silent drive chain system for motorcycle rear drive transmission as claimed in claim 4, wherein: the supporting piece is of a plate-shaped structure or a roller structure; the supporting piece is made of PA46 or PA66 material.

10. A motorcycle characterized in that: the motorcycle is provided with the silent driving chain system for the rear driving transmission of the motorcycle as claimed in any one of claims 1 to 3, 5 to 7 and 9.

Technical Field

The invention relates to the technical field of motorcycle chain transmission, which covers motorcycles driven by engines, motors and the like, in particular to a motorcycle rear drive chain transmission system and a motorcycle.

Background

The current motorcycle rear drive transmission mode mainly adopts chain transmission, and solves the driving problem of the motorcycle through the chain transmission between the output shaft of the engine and the rear wheel shaft.

In the design of the prior art, the chain structure adopted by the rear drive transmission of the motorcycle is a roller chain, and the characteristics of simple and light chain transmission structure, low cost and easy maintenance are considered, and another important reason is that the rear fork of the motorcycle provided with the driving wheel can vibrate in violent movement, and the chain can give a certain margin when the tightness is adjusted, so that the rear fork vibration can be adapted to, and the transmission of an engine and a rear wheel is maintained.

However, with the continuous development of the industry, the existing motorcycle rear drive chain transmission system shows the technical limitation more and more prominently, which is specifically embodied as follows:

with the increasing demand of motorcycles such as high-displacement cruising, traveling, off-road, competitive and the like and high-end high-speed electric motorcycles, the traditional chain transmission system is difficult to adapt to the requirement of individuation low noise of the motorcycles, and particularly, the noise of the back-driving chain transmission is required to be reduced for the high-end high-displacement motorcycles such as high-end electric motorcycles, cruising, traveling, street running and the like, and is more and more loud. Even patent "202020979030.2 a transmission is with making an uproar sprocket that falls", adopted and glued the design to the sprocket, can cushion the impact of chain roller and the teeth of a cogwheel when high-speed transmission, the transmission noise that has reduced to a certain extent, but along with the decline of rubber coating buffer capacity, its noise reduction ability is reducing gradually, also can not effectively solve the individualized low noise's of high-end motorcycle needs. In addition, when the tightness allowance of the chain is reserved too much when the chain is installed, or when the abrasion elongation of the chain is too large after the chain is used, the transmission noise of the chain transmission system is increased, and the dangers of failure of a speedometer sensor, aggravation of abrasion of a chain sprocket, separation of the chain from the sprocket and the like are caused.

Disclosure of Invention

The invention provides a mute drive chain system for rear drive transmission of a motorcycle, which solves the technical limitation of the traditional chain transmission through the innovative design of a mute drive chain of the motorcycle and a chain transmission system thereof, can ensure that the motorcycle still keeps the stability and low noise of the chain transmission system when in high-speed violent movement, meets the requirements of individuation, low noise and high wear resistance of a high-end motorcycle, and can effectively avoid dangerous accidents.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a silence driving chain system for motorcycle rear drive transmission comprises a small chain wheel, a large chain wheel and a silence driving chain in transmission connection between the small chain wheel and the large chain wheel, wherein the small chain wheel is detachably and fixedly connected with an output shaft of a motor or an engine of a motorcycle, the large chain wheel is detachably and fixedly connected with a rear wheel shaft of the motorcycle, and the silence driving chain is a tooth-shaped chain and comprises: the outer chain plate, the inner chain plate, the guide plate, the pin shaft, the sleeve and the damping sealing ring; the sleeve is in interference fit with the mounting holes of the inner chain plate and the guide plate and forms an inner chain link together with the inner chain plate and the guide plate, the pin shaft penetrates through the sleeve and is in clearance fit with the sleeve, two ends of the pin shaft are in interference fit with the mounting holes of the outer chain plate and form an outer chain link together with the outer chain plate, and a damping sealing ring is arranged between the outer chain link and the inner chain link.

Preferably, the guide plate is located in the middle of the outer surface of the sleeve, the inner chain plates are symmetrically arranged on two sides of the guide plate, the damping sealing ring is sleeved on the end portion of the sleeve, and the inner end face and the outer end face of the damping sealing ring are respectively abutted against the outer surface of the inner chain plate and the inner surface of the outer chain plate.

Preferably, the engagement of the mute driving chain with the small chain wheel and the large chain wheel is an internal and external composite engagement mechanism or the engagement of the mute driving chain with the large chain wheel adopts an internal engagement mechanism; the number of teeth of the small chain wheel and the large chain wheel is 13-72 teeth.

Preferably, the motorcycle rear fork noise reduction device further comprises a chain support, the chain support comprises an inverted U-shaped support and a supporting piece connected between openings at the bottom end of the support, the top end of the support is detachably and fixedly connected with the outer surface of one side, close to the large chain wheel, of the motorcycle rear fork, the silent driving chain penetrates through the support and is matched with the supporting piece for use, and the supporting piece is made of light wear-resistant materials.

Preferably, the tooth forms of the small chain wheel and the large chain wheel can adopt involute tooth forms or linear tooth forms; the large chain wheel and the small chain wheel adopt involute tooth form pressure angle of 30-40 degrees; the tooth form half angle of the inner chain plate and the tooth form half angle of the outer chain plate of the mute driving chain are 30-40 degrees.

Preferably, the tooth profile half angle of the silent driving chain inner chain plate and the silent driving chain outer chain plate is 35 degrees.

Preferably, the tooth profiles of the large chain wheel and the small chain wheel are involute tooth profiles, and the pressure angle is 35 degrees.

Preferably, the cross section of the damping sealing ring is O-shaped, X-shaped, or + shaped, or M-shaped, or Z-shaped.

Preferably, the supporting piece is of a plate structure or a roller structure.

Preferably, the supporting piece is made of PA46 or PA66 material.

Preferably, the motorcycle is provided with the silent driving chain system for the rear driving transmission of the motorcycle.

The invention relates to a mute driving chain system for rear drive transmission of a motorcycle and the motorcycle, which have the following beneficial effects:

(1) the invention realizes the inner meshing mechanism or the inner and outer composite meshing mechanism of the silent driving chain (tooth-shaped chain) and the chain wheel through the innovative structural design of the silent driving chain, reduces the polygon effect in the prior motorcycle roller chain transmission process, and leads the chain transmission to be more stable. The requirements of low noise and high wear resistance of the rear drive chain transmission of high-end motorcycles, particularly high-speed electric motorcycles, are effectively met.

(2) The invention overcomes the technical limitation of the traditional motorcycle driving chain transmission, adopts the design of the sleeve toothed chain structure with the damping sealing ring, and adopts the guide mode of the internal guide type toothed chain transmission, so that the chain transmission system is more stable and reliable, the chain transmission efficiency and the durable service life are greatly improved, and the chain transmission noise is reduced.

(3) The invention reduces the transmission noise of the chain transmission system by adding the chain support structure design to the motorcycle rear drive chain transmission system, eliminates the dangerous risks of speedometer sensor failure, chain separation from a chain wheel and the like caused by overlong chain, and simultaneously can improve the wear resistance, fatigue resistance and transmission stability of the chain transmission and better realize silent transmission.

Drawings

FIG. 1: the invention relates to a front view structure schematic diagram of a mute drive chain system for rear drive transmission of a motorcycle;

FIG. 2: the invention relates to a structural schematic diagram of a mute drive chain system for rear drive transmission of a motorcycle on the motorcycle;

FIG. 3: the invention discloses a front view and top view structure schematic diagram of a mute drive chain;

FIG. 4: the invention discloses a structural schematic diagram of a top view of the matching relationship of all parts of a mute drive chain;

FIG. 5: the invention discloses a schematic structural diagram of an outer chain link of a mute driving chain in a top view;

FIG. 6: the invention discloses a schematic structural diagram of an inner chain link of a mute driving chain in a top view;

FIG. 7: the invention relates to a small chain wheel front-view and top-view structure schematic diagram of a mute driving chain system;

FIG. 8: the invention relates to a structural schematic diagram of a large chain wheel of a mute driving chain system in front view and in right view;

FIG. 9: the invention relates to a chain support front view structure schematic diagram of a mute drive chain system; (ii) a

FIG. 10: the invention discloses a relation schematic diagram of noise and small sprocket rotating speed of silent driving chain transmission, common roller chain transmission and roller chain transmission with a rubberizing sprocket.

1: small chain wheel, 2: mute drive chain, 3: motorcycle rear fork, 4: chain support, 5: big sprocket, 6: outer link plate, 7: inner link plate, 8: guide plate, 9: damping sealing ring, 10: pin shaft, 11: sleeve, 12: a bracket, 13: a support member.

Detailed Description

In the following, embodiments of the present invention are described in detail in a stepwise manner, which is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not to be construed as being limited thereto.

Examples 1,

A silence driving chain system for motorcycle rear drive transmission is disclosed, as shown in fig. 1-6, comprising a small chain wheel 1, a large chain wheel 5 and a silence driving chain 2 in transmission connection between the small chain wheel 1 and the large chain wheel 5, wherein the small chain wheel 1 is detachably and fixedly connected with an output shaft of a motor or an engine of a motorcycle, the large chain wheel 5 is detachably and fixedly connected with a rear wheel shaft of the motorcycle, and the silence driving chain 2 is a tooth-shaped chain, comprising: the outer chain plate 6, the inner chain plate 7, the guide plate 8, the pin shaft 10, the sleeve 11 and the damping sealing ring 9; the sleeve 11 and the mounting holes of the inner chain plate 7 and the guide plate 8 are in interference fit, the sleeve and the inner chain plate 7 and the guide plate 8 form an inner chain link, the pin shaft 10 penetrates through the sleeve 11 and is in clearance fit with the sleeve 11, two ends of the pin shaft 11 are in interference fit with the mounting holes of the outer chain plate 6 and form an outer chain link together with the outer chain plate 6, and a damping sealing ring 9 is arranged between the outer chain link and the inner chain link.

The traditional motorcycle rear driving chain is a roller chain, although the structure is simple, the structure is light, the maintenance is easy, the tightness allowance is convenient to adjust, and the use requirement of the traditional motorcycle can be met, however, as described in the background technology part of the invention, along with the rapid development of the motorcycles such as large-displacement cruising, traveling, off-road, competition and the like and high-end high-speed electric motorcycles, the use of the traditional roller chain is more and more limited, and the development requirement cannot be met particularly in the aspect of silence. For the reasons, the invention provides the silent driving chain 2 with the tooth-shaped chain structure, which can obviously improve the silent effect while fully meeting the load intensity of the motorcycle.

Examples 2,

On the basis of embodiment 1, the present embodiment is further improved, specifically:

as shown in fig. 1 to 6, the guide plate 8 is located in the middle of the outer surface of the sleeve 11, the inner link plates 7 are symmetrically installed on both sides of the guide plate 8, the damping sealing ring 9 is sleeved on the end of the sleeve 11, and the inner end surface and the outer end surface of the damping sealing ring 9 are respectively abutted against the outer surface of the adjacent inner link plate 7 and the inner surface of the outer link plate 6.

Examples 3,

On the basis of embodiment 2, the present embodiment makes further improvements, specifically:

the mute driving chain 2 is meshed with the small chain wheel 1 and the large chain wheel 5 through an internal and external composite meshing mechanism or the mute driving chain 2 is meshed with the large chain wheel 5 through an internal meshing mechanism.

Examples 4,

On the basis of embodiment 3, the present embodiment makes further improvements, specifically:

as shown in fig. 1, 2 and 9, the motorcycle rear fork noise reduction device further comprises a chain support 4, wherein the chain support 4 comprises an inverted U-shaped support 12 and a support part 13 connected between openings at the bottom end of the support 12, the top end of the support 12 is detachably and fixedly connected with the outer surface of one side, close to the large chain wheel 5, of the motorcycle rear fork 3, the silent driving chain 2 penetrates through the support 12 and is matched with the support part 13 for use, and the support part is made of light wear-resistant materials.

Examples 5,

On the basis of embodiment 4, this embodiment makes further improvements, specifically:

as shown in fig. 7 and 8, the number of teeth of the small sprocket 1 is 16 teeth or 15 teeth, preferably 16 teeth in this embodiment, the number of teeth of the large sprocket 5 is 51 teeth, and the tooth profiles of the small sprocket 1 and the large sprocket 5 are both involute tooth profiles; the large chain wheel and the small chain wheel adopt an involute tooth form pressure angle of 30 degrees; the tooth form half angle of the inner chain plate 7 and the outer chain plate 6 of the mute driving chain 2 is 30 degrees.

Examples 6,

On the basis of embodiment 4, this embodiment makes further improvements, specifically:

the big chain wheel and the small chain wheel adopt an involute tooth form pressure angle of 40 degrees; the tooth form half angle of the inner chain plate 7 and the outer chain plate 6 of the mute driving chain 2 is 40 degrees.

Example 7,

On the basis of embodiment 4, this embodiment makes further improvements, specifically:

the tooth forms of the small chain wheel 1 and the large chain wheel 5 are both linear tooth forms.

Example 8,

On the basis of embodiment 4, this embodiment makes further improvements, specifically:

as shown in fig. 7 and 8, the tooth profile half angle of the inner link plate 7 and the outer link plate 6 of the silent driving chain 2 is 35 °.

Examples 9,

On the basis of embodiment 4, this embodiment makes further improvements, specifically:

as shown in fig. 7 and 8, the tooth profiles of the large chain wheel 5 and the small chain wheel 1 are involute tooth profiles, and the pressure angle is 35 °.

Examples 10,

On the basis of the above embodiments, the present embodiment is further improved, specifically:

the cross section of the damping sealing ring is shaped like a plus sign.

Examples 11,

On the basis of embodiment 10, this embodiment is further improved, specifically:

as shown in fig. 9, the supporting member 13 has a plate-like structure.

Examples 12,

On the basis of embodiment 10, this embodiment is further improved, specifically:

the supporting member 13 is a roller structure (not shown).

Examples 13,

On the basis of the embodiments 11 and 12, the embodiment is further improved, specifically:

the support 13 is made of PA66 material.

Example 14:

on the basis of the above embodiments, the present embodiment further discloses:

the motorcycle is provided with the mute drive chain system for the rear drive transmission of the motorcycle.

Experimental example:

based on the above embodiments, the present invention is verified by experiments, and the data is shown in fig. 10, and the comparison result between the noise test of the silent drive chain transmission and the noise test of the common roller chain transmission and the roller chain transmission with the rubberizing sprocket is as follows: noise of a silent driving chain transmission is 2-7 decibels lower than that of a common roller chain transmission; noise of the silent driving chain transmission is 1-6 decibels lower than noise of the transmission of the roller chain with the rubber-hanging chain wheel; and the noise change of the mute driving chain transmission is relatively stable compared with the noise of the common roller chain transmission and the roller chain transmission with the rubber-hanging chain wheel.

The working principle of the invention is as follows:

1. the invention greatly reduces the transmission noise of the motorcycle transmission chain by the guiding mode of the internal guide type tooth-shaped chain transmission;

2. on the basis, the damping sealing ring 9 is arranged between the inner chain link and the outer chain link, external sand and dust can be prevented from entering the chain through the damping sealing ring 9, abrasion of the pin shaft 10 and the sleeve 11 is accelerated, dry friction between the pin shaft 10 and the sleeve 11 caused by overflow of lubricating oil in the chain can be prevented, collision friction between the inner chain plate 7 and the outer chain plate 6 can be eliminated, the abrasion resistance of the chain can be improved, the service life of the chain can be prolonged, and chain transmission noise can be further reduced;

3. the silent driving chain 2 adopts a tooth-shaped chain form, breaks through the traditional roller chain transmission mode, realizes internal meshing or internal and external composite meshing transmission under the condition of fully meeting the heavy load of the motorcycle, can keep the stable transmission of the rear drive of the motorcycle, and can further reduce the transmission noise on the basis;

4. the invention also provides the chain support 4, the dangerous risks of speedometer sensor failure, chain separation from the chain wheel and the like caused by overlong chain can be eliminated through the chain support 4, the stability of chain transmission is improved, and silent chain transmission is better realized.