CN211693434U - Multidirectional buffering and noise reducing chain wheel - Google Patents

Abstract

The utility model discloses a sprocket of making an uproar falls in multidirectional buffering, including sprocket and bolster, the sprocket includes body and external tooth, the bolster is cyclic annular, the bolster inlays the both sides face of establishing the linking department of body and external tooth, and the bolster cladding salient in the both sides face of external tooth lower part. The utility model reduces the chain transmission impact force in multiple dimensions, and generates the buffer function in the transmission meshing direction, the driving direction and the chain transverse swinging direction; the utility model has the advantages that the buffer part is contacted with the arc surface of the chain roller, is more stable, and can achieve the buffer purpose only by a very small amount of buffer material; the utility model can obviously reduce various noises generated in the chain transmission process, has the noise reduction effect and expands the application range of chain transmission; the utility model discloses bolster multidimension buffering effect makes the wearing and tearing that the impact caused reduce, improves transmission's life-span greatly.

Description

Multidirectional buffering and noise reducing chain wheel

Technical Field

The utility model relates to a transmission field especially relates to a multidirectional buffering sprocket of making an uproar that falls.

Background

The chain transmission is invented for more than one hundred years from now, and the chain transmission is still the most widely used mode at present due to the advantages of reliable transmission, low cost and the like. The matched transmission chain wheel can generate a polygonal effect when being meshed with a chain in the transmission process, impact in different sizes and directions is generated due to different chain speeds and driving speed changes, various noises are generated, and the chain transmission can not meet the requirements on the use occasions requiring low noise. The side surface of the existing improved chain wheel is provided with buffer glue, and the side surface of the inner chain plate is firstly contacted with the buffer ring during meshing, so that the impact in the meshing direction of the chain and the chain wheel is reduced to a certain extent, and the noise level is reduced; but the driving direction and the swinging direction still generate obvious noise due to different impact forces.

Disclosure of Invention

The utility model aims at prior art's defect, provide a multidirectional buffering sprocket of making an uproar that falls.

In order to realize the above purpose, the utility model adopts the following technical scheme:

the utility model provides a sprocket of making an uproar falls in multidirectional buffering, includes sprocket and bolster, the sprocket includes body and external tooth, the bolster is cyclic annular, the bolster inlays the both sides face of establishing the body and linking department of external tooth, and the bolster cladding and salient in the both sides face of external tooth lower part.

Furthermore, the periphery of the buffer piece is in a convex tooth shape, and the concave parts of two adjacent convex tooth shapes are used for being abutted to the chain roller.

Furthermore, the end part of the convex tooth shape of the buffer piece is a slope surface extending towards the outer tooth.

Furthermore, the inner width of the chain wheel with the buffer piece and the inner section of the chain has a clearance of more than 0.1 mm.

Furthermore, the buffer piece is higher than the arc of the groove bottom between the outer teeth.

Furthermore, the body is provided with a plurality of through holes or through grooves, and the buffer parts on two sides of the body are connected through the through holes or through grooves.

Further, the buffer member is made of resin, rubber or composite elastic material.

Adopt the technical scheme of the utility model, the beneficial effects of the utility model are that: compared with the prior art, the utility model reduces the impact force of chain transmission in multiple dimensions, and generates buffer function in the transmission mesh-in direction, driving direction and chain transverse swing direction; the utility model has the advantages that the buffer part is contacted with the arc surface of the chain roller, is more stable, and can achieve the buffer purpose only by a very small amount of buffer material; the utility model can obviously reduce various noises generated in the chain transmission process, has excellent noise reduction effect and expands the application range of chain transmission; the utility model discloses bolster multidimension buffering effect makes the wearing and tearing that the impact caused reduce, improves transmission's life-span greatly.

Drawings

FIG. 1 is a structural diagram of an embodiment of a multi-directional buffering noise reduction sprocket provided by the present invention;

FIG. 2 is a cross-sectional view of a multi-directional buffering noise-reducing sprocket according to the present invention;

fig. 3 is a schematic view of the chain engaged with a multi-directional buffering noise reduction sprocket provided by the present invention;

FIG. 4 is a schematic view of the direction of chain swing provided by the present invention;

FIG. 5 is a second structural view of the embodiment of the multi-directional buffering noise reduction sprocket provided by the present invention;

FIG. 6 is a three-structure diagram of an embodiment of a multi-directional buffering noise reduction sprocket provided by the present invention;

fig. 7 is a structural diagram of the multi-directional buffering noise reduction chain wheel provided with a through groove.

The chain comprises a chain roller 1, a chain roller 2, a groove bottom arc 3, external teeth 4, a through hole 5, a slope surface 6, a buffer part 7, a chain wheel 8, a body 9, an inner chain plate 10, a through groove 11 and a through groove chamfer.

Detailed Description

The specific embodiments of the present invention will be further explained with reference to the accompanying drawings.

As shown in the figure, a sprocket of making an uproar falls in multidirectional buffering, includes sprocket 7 and bolster 6, sprocket 7 includes body 8 and external tooth 3, bolster 6 is cyclic annular, bolster 6 inlays the both sides face of establishing the body 8 with the linking department of external tooth 3, and the cladding of bolster 6 and salient in the both sides face of 3 lower parts of external tooth. So as to ensure that the inner chain plate 9 of the chain is contacted with the buffer 6 during the left-right swinging process to reduce the transverse impact force. The swing direction is shown in fig. 4.

The periphery of the buffer piece 6 is in a convex tooth shape, and two adjacent concave parts in the convex tooth shape are used for abutting against the chain roller 1.

The end part of the convex tooth shape of the buffer piece 6 is a slope surface 5 extending towards the outer tooth, so that the chain roller 1 can be conveniently clamped in.

The sprocket 7 with the buffer 6 has a gap of 0.1mm or more from the inner width of the inner link of the chain.

The buffer piece 6 is higher than the groove bottom arc 2 between the outer teeth. So as to ensure that the chain roller 1 contacts with the buffer 6 when engaging into the tooth space of the chain wheel, and contacts with the body 8 after the impact force is buffered.

The body 8 is provided with a plurality of through holes 4 or through grooves, and the buffer parts on two sides of the body are connected through the through holes 4 or through grooves. In order to ensure firm bonding between the cushion member 6 and the body 8, the body 8 is provided with a plurality of through holes 4 or through grooves 10 in the covering range of the cushion member 6 so as to communicate the cushion members 6 embedded on the left and right sides, and is fixed by injection molding, pouring, sticking or the like. The through groove 10 can be further provided with a through groove chamfer 11, so that the connection with the buffer member 6 is more close to attachment.

The buffer 6 is made of resin, rubber or composite elastic material. The hardness, thickness, width, rebound speed, etc. of the cushion member 6 are determined by the chain speed and the load at the time of chain transmission.

For example, the 4-minute transmission chain of the motorcycle is taken as an example, the hardness of the driving wheel buffer part 6 is 70-90HA, the hardness of the driven wheel buffer part 6 is 50-75HA, the thickness of the single surface of the buffer part 6 is 0.8-3mm, the width of the buffer part 6 is 6-10mm, and the buffer part covers the pitch circle of the chain wheel. The height of the buffer piece 6 of the 4-minute-friction trailer is preferably 0.05-0.3mm higher than the tooth bottom of the body.

The first embodiment,

As shown in fig. 1, the buffer member 6 may be formed to be entirely convex in a circular arc shape higher than the outer teeth of the body.

Example II,

As shown in fig. 5, the buffer member 6 may protrude from the bottom of the main body between the outer teeth and the two sides of the opening.

Example III,

As shown in fig. 6, the buffer member 6 may protrude from both sides of the outer teeth of the body to form discontinuous protrusions.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (7)

1. The utility model provides a sprocket of making an uproar falls in multidirectional buffering, its characterized in that, includes sprocket and bolster, the sprocket includes body and external tooth, the bolster is cyclic annular, the bolster inlays the both sides face of establishing the body and the linking department of external tooth, and the bolster cladding and salient in the both sides face of external tooth lower part.

2. A multidirectional cushioning and noise reducing sprocket as set forth in claim 1, wherein said cushioning member outer periphery is in the shape of a lobed tooth, and adjacent two of said lobed tooth recesses are adapted to abut the chain rollers.

3. A multi-directional noise reduction and damping sprocket as set forth in claim 2, wherein said damper lobed end is a ramped surface extending toward said outer teeth.

4. The multi-directional buffering and noise reducing sprocket as claimed in claim 1, wherein the inner width of the inner section of the sprocket with the buffering member and the chain has a gap of 0.1mm or more.

5. The multidirectional buffering and noise reducing sprocket as set forth in claim 1, wherein said buffer member is higher than a groove bottom arc between outer teeth.

6. The multi-directional buffering and noise reducing sprocket as set forth in claim 1, wherein the body is provided with a plurality of through holes or through grooves, and the buffering members on both sides of the body are connected through the through holes or through grooves.

7. A multidirectional cushioning and noise reducing sprocket as set forth in claim 1, wherein said cushioning member is a resin, rubber or composite elastic material.

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