CN215334277U - Chain wheel and gear hybrid transmission mechanism - Google Patents
Chain wheel and gear hybrid transmission mechanism Download PDFInfo
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- CN215334277U CN215334277U CN202121262417.7U CN202121262417U CN215334277U CN 215334277 U CN215334277 U CN 215334277U CN 202121262417 U CN202121262417 U CN 202121262417U CN 215334277 U CN215334277 U CN 215334277U
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Abstract
The utility model discloses a chain wheel and gear hybrid transmission mechanism, which comprises a wheel body, wherein gear teeth are arranged on the periphery of the wheel body, tooth roots of every two adjacent gear teeth are connected into an arc shape, the radius of the arc shape corresponds to the radius of a rolling pin of a chain, the tooth top clearance of every two adjacent gear teeth is greater than the diameter of the rolling pin, the tooth tops and the tooth roots of the gear teeth are connected through a smooth arc-shaped surface, and the tooth top height of the gear teeth is equal to or less than the diameter of the rolling pin.
Description
Technical Field
The utility model relates to a chain wheel and gear hybrid transmission mechanism.
Background
The patent with the publication number CN209026144U discloses a transmission gear capable of being connected with a chain and a gear at the same time, which essentially only combines the gear and a sprocket, the gear can only be connected with the gear, the sprocket can only be connected with the chain, and the structure will certainly limit the practical application; on the other hand, the related technical scheme for connecting different transmission shafts is also disclosed, but the structure is too complex, and the installation and the connection are inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a chain wheel and gear hybrid transmission mechanism.
The technical scheme of the utility model is as follows: the utility model provides a sprocket and gear hybrid transmission, includes the wheel body, the wheel body periphery has the teeth of a cogwheel, the teeth of a cogwheel uses the centre of a circle of wheel body to be annular equidistance distribution as the center, each the addendum of the teeth of a cogwheel is on same projection circle, every two adjacent it is convex to connect between the tooth root of the teeth of a cogwheel, convex radius and the radius of the round pin of rolling of chain are corresponding, and every two are adjacent the addendum clearance of the teeth of a cogwheel is greater than the diameter of rolling the round pin, be connected through smooth arcwall face between the addendum of the teeth of a cogwheel and the tooth root, the addendum height of the teeth of a cogwheel is equal to or is less than the diameter of rolling the round pin.
Preferably, the wheel body has fifteen teeth on the periphery.
Preferably, the tooth crest height of the gear teeth is smaller than the diameter of the rolling pin by 0.5-1 mm.
Furthermore, the middle part of the wheel body is also provided with a shaft hole, one end of the shaft hole is a round hole, the other end of the shaft hole is an equilateral polygonal hole, and the round hole and the equilateral polygonal hole are separated by a spacer ring.
Optionally, the wheel body is provided with two rows of gear teeth, and the tooth tops of the two rows of gear teeth are flat angles with arc-shaped transition ends.
Optionally, the wheel body is provided with two rows of gear teeth, and the tops of the gear teeth in the two rows are acute angles with arc transition.
Optionally, the wheel body is provided with two rows of gear teeth, the tooth tops of one row of the gear teeth are flat angles with arc-shaped transition at two ends, and the tooth tops of the other row of the gear teeth are acute angles with arc-shaped transition at the tops.
Optionally, three rows of gear teeth are arranged on the wheel body, the tooth tops of the gear teeth on the two sides of the gear teeth are flat angles with arc-shaped transition at two ends, and the tooth tops of the gear teeth in the middle of the gear teeth are acute angles with arc-shaped transition at the tops.
Optionally, three rows of gear teeth are arranged on the wheel body, the tooth tops of the gear teeth on the two sides of the wheel tooth are acute angles with arc-shaped transition at the tops, and the tooth tops of the gear teeth in the middle of the wheel tooth are flat angles with arc-shaped transition at the two ends.
The utility model has the beneficial effects that: the wheel body of the utility model can be connected with a chain for transmission, and can also be connected with a gear with corresponding gear teeth for transmission, thereby really realizing hybrid transmission.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of the present invention;
fig. 3 is a schematic structural diagram of another embodiment of the present invention.
Detailed Description
The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.
As shown in fig. 1, a sprocket and gear hybrid transmission mechanism includes a wheel body 1, wherein gear teeth 2 are provided on the periphery of the wheel body 1, the gear teeth 2 are annularly and equidistantly distributed around the center of the wheel body 1, and the tooth tops of the gear teeth 2 are on the same projection circle;
the tooth roots of every two adjacent gear teeth 2 are connected into an arc shape, the radius of the arc shape corresponds to the radius of a rolling pin 3 of the chain, the tooth top clearance of every two adjacent gear teeth 2 is larger than the diameter of the rolling pin 3, the tooth tops and the tooth roots of the gear teeth 2 are connected through a smooth arc-shaped surface, and the tooth top height of the gear teeth 2 is equal to or smaller than the diameter of the rolling pin 3;
through the structure, the rolling pin 3 of the chain can be embedded between two gear teeth 2 of the wheel body 1, so that the chain and the wheel body 1 can be driven, the wheel body 1 can also be meshed with a gear with the corresponding gear teeth 2 to drive, and the wheel body 1 is provided with two rows or more than two rows of gear teeth 2, so that the mixed transmission of the chain and the gear can be realized;
preferably, the periphery of the wheel body 1 is provided with fifteen gear teeth 2;
preferably, the height of the tooth crest of the gear teeth 2 is 0.5-1 mm smaller than the diameter of the rolling pin 3;
furthermore, the middle part of the wheel body 1 is also provided with a shaft hole, one end of the shaft hole is a round hole 4, the other end of the shaft hole is an equilateral polygonal hole 5, the round hole 4 and the equilateral polygonal hole 5 are separated by a spacer ring 6, and the spacer ring 6 is used for locking the end part of the shaft by a locking nut; therefore, the utility model can be used for forward mounting or backward mounting and can be suitable for connection of different types of shafts;
in another embodiment, as shown in fig. 2, the wheel body 1 has two rows of gear teeth 2, and the tooth tops of the two rows of gear teeth 2 are flat angles with arc-shaped transition at two ends;
in another embodiment, as shown in fig. 3, the wheel body 1 has two rows of gear teeth 2, and the tops of the two rows of gear teeth 2 are acute angles with arc transition;
in another embodiment, the wheel body 1 is provided with two rows of gear teeth 2, the tooth tops of one of the two rows of gear teeth 2 are flat angles with arc-shaped transition at two ends, and the tooth tops of the other one of the two rows of gear teeth 2 are acute angles with arc-shaped transition at tops;
it is worth mentioning that in the structure, the gear teeth 2 with the gear tops being the straight angles with the two ends in arc transition have the advantage of not slipping easily when being meshed with the gear, and the gear teeth 2 with the gear tops being the acute angles with the top in arc transition have the advantage of being capable of being matched with the rolling pin 3 more smoothly, so that the chain runs more stably, the impact is small, the noise is small, but the two gear teeth 2 can be matched with the gear or the chain for transmission;
in another embodiment, the wheel body 1 is provided with three rows of gear teeth 2, the tooth tops of the gear teeth 2 on two sides of the three rows of gear teeth 2 are flat angles with arc-shaped transition at two ends, and the tooth tops of the gear teeth 2 in the middle of the three rows of gear teeth 2 are acute angles with arc-shaped transition at the tops;
in another embodiment, the wheel body 1 has three rows of gear teeth 2, the tooth tops of the gear teeth 2 on two sides of the three rows of gear teeth 2 are acute angles with arc-shaped transitions at the tops, and the tooth tops of the gear teeth 2 in the middle of the three rows of gear teeth 2 are flat angles with arc-shaped transitions at the two ends.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a sprocket and gear hybrid transmission, includes the wheel body, the wheel body periphery has the teeth of a cogwheel, the teeth of a cogwheel uses the centre of a circle of wheel body to be annular equidistance distribution, each the tooth top of the teeth of a cogwheel is on same projection circle, its characterized in that: every two adjacent tooth roots of the gear teeth are connected into a circular arc shape, the radius of the circular arc shape corresponds to the radius of the rolling pin of the chain, the tooth top clearance of every two adjacent gear teeth is larger than the diameter of the rolling pin, the tooth top and the tooth root of the gear teeth are connected through a smooth arc-shaped surface, and the tooth top height of the gear teeth is equal to or smaller than the diameter of the rolling pin.
2. A sprocket and gear hybrid transmission according to claim 1, wherein: the periphery of the wheel body is provided with fifteen gear teeth.
3. A sprocket and gear hybrid transmission according to claim 2, wherein: the tooth crest height of the gear teeth is smaller than the diameter of the rolling pin by 0.5-1 mm.
4. A sprocket and gear hybrid transmission according to claim 3, wherein: the wheel body is characterized in that the middle of the wheel body is also provided with a shaft hole, one end of the shaft hole is a round hole, the other end of the shaft hole is an equilateral polygonal hole, and the round hole and the equilateral polygonal hole are separated by a spacer ring.
5. A sprocket and gear hybrid transmission according to claim 4, wherein: the gear body is provided with two rows of gear teeth, and the tooth tops of the two rows of gear teeth are flat angles with arc-shaped transition ends.
6. A sprocket and gear hybrid transmission according to claim 4, wherein: the gear body is provided with two rows of gear teeth, and the tooth tops of the two rows of gear teeth are all acute angles with arc transition tops.
7. A sprocket and gear hybrid transmission according to claim 4, wherein: the gear body is provided with two rows of gear teeth, the tooth tops of one row of the gear teeth are flat angles with arc-shaped transition at two ends, and the tooth tops of the other row of the gear teeth are acute angles with arc-shaped transition at the tops.
8. A sprocket and gear hybrid transmission according to claim 4, wherein: the gear body is provided with three rows of gear teeth, the tooth tops of the gear teeth on two sides of the gear teeth are flat angles with arc transition at two ends, and the tooth tops of the gear teeth in the middle of the gear teeth are acute angles with arc transition at the tops.
9. A sprocket and gear hybrid transmission according to claim 4, wherein: the gear body is provided with three rows of gear teeth, the tooth tops of the gear teeth on two sides of the gear teeth are acute angles with arc transition at the tops, and the tooth tops of the gear teeth in the middle of the gear teeth are flat angles with arc transition at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121262417.7U CN215334277U (en) | 2021-06-07 | 2021-06-07 | Chain wheel and gear hybrid transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121262417.7U CN215334277U (en) | 2021-06-07 | 2021-06-07 | Chain wheel and gear hybrid transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334277U true CN215334277U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121262417.7U Active CN215334277U (en) | 2021-06-07 | 2021-06-07 | Chain wheel and gear hybrid transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334277U (en) |
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2021
- 2021-06-07 CN CN202121262417.7U patent/CN215334277U/en active Active
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