CN215334205U - Male and female chain wheel transmission mechanism - Google Patents
Male and female chain wheel transmission mechanism Download PDFInfo
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- CN215334205U CN215334205U CN202121567343.8U CN202121567343U CN215334205U CN 215334205 U CN215334205 U CN 215334205U CN 202121567343 U CN202121567343 U CN 202121567343U CN 215334205 U CN215334205 U CN 215334205U
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- female
- chain wheel
- male
- sprocket
- chain
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Abstract
The utility model discloses a transmission mechanism of a male and female chain wheel, which comprises a male chain wheel, a female chain wheel, a sleeve roller chain and the like, wherein the male chain wheel is mainly set as a long-tooth chain wheel with higher tooth height, the female chain wheel is set as a short-tooth chain wheel with lower tooth height, the sleeve roller chain is connected end to end and circumferentially surrounds the female chain wheel in a closed ring shape, when the male chain wheel is meshed with a roller of the sleeve roller chain outside the female chain wheel, the long tooth of the male chain wheel is not contacted with the short tooth of the female chain wheel, but the tooth spaces of the female chain wheel are meshed with the outer diameter of the roller of the sleeve roller chain; therefore, the male chain wheel can transmit power to the female chain wheel through the sleeve roller chain, so that the chain of the sleeve roller chain can be effectively prevented from increasing the pitch and the length along with long-term use, particularly, the female chain wheel cannot be in contact wear with the male chain wheel, the maintenance workload can be reduced, the use requirement of high-rotating-speed transmission can be met, the service lives of the chain of the sleeve roller chain and the female chain wheel can be prolonged, and a large wheel is often used as the female chain wheel during variable-speed transmission.
Description
Technical Field
The utility model relates to a chain wheel transmission mechanism in the field of wheel train transmission, in particular to a male and female chain wheel transmission mechanism.
Background
At present, between two chain wheels with completely same tooth forms, a driving chain wheel pulls a driven chain wheel to rotate through a bush roller chain, which is a very common transmission technology, and is characterized in that: the bush roller chains are connected end to form a ring, the driving chain wheel and the driven chain wheel are arranged in a chain ring of the bush roller chains, the center distance of the two wheels is larger than the value obtained by dividing the addendum circle diameter of the two wheels by 2, and the chain of the bush roller chains forms wrapping angles of a certain degree on the driving chain wheel and the driven chain wheel respectively. Such structure advantage is that production technology can standardize, low in manufacturing cost, use and maintain convenient, still can normally work under the abominable condition of operational environment, can not receive the influence even under the lubricated operating mode condition yet. However, after the transmission mechanism using the bush roller chain is used for a long time, the chain pitch and the length of the bush roller chain are often gradually increased, so that the meshing performance of the chain wheel and the chain is reduced, transmission failure is easily caused, and the transmission mechanism is not suitable for high-speed transmission and has a shorter service life of the chain.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the chain transmission mechanism overcomes the defects of the prior chain transmission technology, and provides a male and female chain wheel transmission mechanism which can be suitable for high-speed transmission and can prolong the service life of the chain of a sleeve roller chain and the service life of the female chain wheel.
The technical problem of the utility model is realized by the following technical scheme:
a kind of female and male sprocket drive motor constructs, including the male sprocket of the initiative rotation, the female sprocket of the driven rotation and end-to-end connection present the bush roller chain around the female sprocket of the closed ring-shaped circumference, the bush roller chain rotates with the female sprocket synchronously, the said male sprocket is the higher long-tooth sprocket of the tooth height, the female sprocket is the shorter-tooth sprocket of the tooth height; the male chain wheel is meshed with the roller of the bush roller chain outside the female chain wheel, the long teeth of the male chain wheel are not contacted with the short teeth of the female chain wheel, but the tooth spaces of the female chain wheel are meshed with the outer diameter of the roller of the bush roller chain, and the male chain wheel transmits power to the female chain wheel through the bush roller chain.
The male sprocket transmits power to the female sprocket through the sleeve roller chain, and the design size of the female sprocket is in accordance with the following formula:
formula I, D1=D-d
D2=D-
In the formula, D1-the root circle diameter of the female sprocket;
D2-the addendum circle diameter of the female sprocket;
d is the reference circle diameter of the female chain wheel;
d-roller outside diameter of the bush roller chain;
the design size of the male chain wheel needs to accord with the following formula, and the tooth socket shape accords with GB 1244-85:
formulas II and D1=D-d
D2=D+
In the formula, D1-the root circle diameter of the male sprocket;
D2-the addendum circle diameter of the male sprocket;
d is the pitch circle diameter of the male sprocket;
d-roller outside diameter of the bush roller chain.
The pitch number of the sleeve roller chain is the same as the number of the low teeth of the female chain wheel.
The addendum circles of the male chain wheel and the female chain wheel are tangent.
The reference circles of the male chain wheel and the female chain wheel are tangent.
Compared with the prior art, the utility model mainly adopts the long-tooth chain wheel with higher tooth height as a male chain wheel, adopts the short-tooth chain wheel with lower tooth height as a female chain wheel, is externally provided with the sleeve roller chain which is connected end to end and is in a closed ring shape and circumferentially surrounds, and synchronously rotates with the female chain wheel. When the male chain wheel is meshed with the roller of the bush roller chain outside the female chain wheel, the long teeth of the male chain wheel are not contacted with the short teeth of the female chain wheel, but the tooth spaces of the male and female chain wheels are meshed with the outer diameter of the roller of the bush roller chain; thus, the male sprocket can transmit power to the female sprocket through the sleeve roller chain; therefore, the transmission mechanism can effectively avoid the chain of the sleeve roller chain from increasing the pitch and the length along with long-term use, particularly, the female chain wheel cannot be in contact wear with the male chain wheel, the maintenance workload can be reduced, the use requirement of high-rotating-speed transmission can be met, and the service lives of the chain of the sleeve roller chain and the female chain wheel can be prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
FIG. 3 is a schematic view of the female sprocket.
FIG. 4 is a schematic view of a male sprocket.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the above drawings.
As shown in fig. 1 to 4, 1 is a bush roller chain, 11 is a roller, 2 is a female sprocket, 21 is a short tooth, 3 is a male sprocket, 31 is a high tooth, and 4 is a tooth groove.
A male and female chain wheel transmission mechanism is shown in figures 1 and 2 and can be used in severe working environment and no-lubrication working condition, and the structure of the transmission mechanism mainly comprises a male chain wheel 3 which rotates in a driving mode, a female chain wheel 2 which rotates in a driven mode and a sleeve roller chain 1 which is connected end to end and circumferentially surrounds the female chain wheel 2 in a closed ring mode, and the sleeve roller chain and the female chain wheel 2 can rotate synchronously.
The male chain wheel 3 is a long-tooth chain wheel with a high tooth height, namely the male chain wheel 3 is provided with long teeth 31 which are uniformly distributed on the circumference, the female chain wheel 2 is a short-tooth chain wheel with a low tooth height, namely the female chain wheel 2 is provided with short teeth 21 which are uniformly distributed on the circumference, the number of the joints of the sleeve roller chain 1 is the same as that of the short teeth 21 of the female chain wheel 2, and the tooth spaces 4 of the male and female chain wheels are required to be in accordance with GB 1244-85.
The male chain wheel 3 is meshed with a roller 11 of the sleeve roller chain 1 outside the female chain wheel 2, the sleeve roller chain 1 is a standard chain and can be selected according to design requirements, the addendum circles of the male chain wheel 3 and the female chain wheel 2 are tangent, the reference circles are tangent, the long teeth 31 of the male chain wheel 3 are not contacted with the short teeth 21 of the female chain wheel 2, but the tooth spaces 4 of the female chain wheel are meshed with the outer diameter of the roller 11 of the sleeve roller chain 1; therefore, the male sprocket 3 can transmit the power to the female sprocket 2 via the bush roller chain 1.
The male chain wheel 3 transmits power to the female chain wheel 2 through the sleeve roller chain 1, and the design size of the female chain wheel meets the following formula:
formula I, D1=D-d
D2=D-
In the formula, D1The root circle diameter of the female sprocket 2 (dimensioned according to standard parameters);
D2the diameter of the addendum circle of the female sprocket 2 (the size is determined according to standard parameters);
d, the reference circle diameter (the size is determined according to standard parameters) of the female chain wheel 2;
d-outside diameter of the roller 11 of the bush roller chain 1 (sized according to standard parameters);
the design size of the male sprocket 3 is required to meet the following formula, and the shape of the tooth space 4 is GB 1244-85:
formulas II and D1=D-d
D2=D+
In the formula, D1The root circle diameter of the male sprocket 3 (dimensioned according to standard parameters);
D2the diameter of the addendum circle of the male sprocket 3 (the dimension is determined according to standard parameters);
d, the reference circle diameter of the male sprocket 3 (the size is determined according to standard parameters);
d-outside diameter of the roller 11 of the bush roller chain 1 (sized according to standard parameters).
The utility model mainly uses the difference of the height and the height of the teeth of the male and female chain wheels and the non-contact, and uses the way of the sleeve roller chain 1 to transmit, which can avoid the defect that the chain of the sleeve roller chain 1 is easy to increase the pitch and the length along with the long-term use in the traditional transmission chain transmission mechanism, thereby meeting the use requirement of high-speed transmission, and also can prolong the service life of the chain of the sleeve roller chain 1 and the female chain wheel 2, especially after the female chain wheel 2 does not contact and wear with the male chain wheel 3, the maintenance workload can be reduced, and the bull wheel is also often used as the female chain wheel 2 in the variable speed transmission.
The above description is only an example of the present invention, and those skilled in the art will understand that any equivalent structure design of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A kind of female and male sprocket drive motor constructs, including the male sprocket (3) of the initiative rotation, the female sprocket (2) of the driven rotation and end-to-end present the bush roller chain (1) that the closed ring circumference surrounds outside the female sprocket (2), this bush roller chain rotates with the female sprocket (2) synchronously, characterized by that the said male sprocket (3) is the higher long-tooth sprocket of the tooth height, the female sprocket (2) is the shorter short-tooth sprocket of the tooth height; the male chain wheel (3) is meshed with a roller (11) of the sleeve roller chain (1) outside the female chain wheel (2), long teeth (31) of the male chain wheel (3) are not in contact with short teeth (21) of the female chain wheel (2), tooth grooves (4) of the female chain wheel are all in shape meshed with the outer diameter of the roller (11) of the sleeve roller chain (1), and the male chain wheel (3) transmits power to the female chain wheel (2) through the sleeve roller chain (1).
2. A sprocket gear according to claim 1, wherein the male sprocket (3) transmits power to the female sprocket (2) via the sleeve roller chain (1), and the female sprocket is dimensioned according to the following equation:
formula I, D1=D-d
D2=D- 
In the formula, D1-root circle diameter of the female sprocket (2);
D2-the addendum circle diameter of the female sprocket (2);
d is the pitch circle diameter of the female chain wheel (2);
d-the outer diameter of the roller (11) of the bush roller chain (1);
the design size of the male chain wheel (3) is required to meet the following formula, and the shape of the tooth groove (4) meets GB 1244-85:
formulas II and D1=D-d
D2=D+
In the formula, D1-the root circle diameter of the male sprocket (3);
D2-the diameter of the addendum circle of the male sprocket (3);
d is the pitch circle diameter of the male chain wheel (3);
d-the outer diameter of the roller (11) of the bush roller chain (1).
3. A sprocket drive according to claim 1 wherein the rollers (1) have the same number of steps as the short teeth (21) of the sprocket (2).
4. A sprocket drive according to claim 1, wherein the addendum circles of the male (3) and female (2) sprockets are tangent.
5. A sprocket wheel drive according to claim 1, wherein the reference circles of the male (3) and female (2) sprocket wheels are tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121567343.8U CN215334205U (en) | 2021-07-12 | 2021-07-12 | Male and female chain wheel transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121567343.8U CN215334205U (en) | 2021-07-12 | 2021-07-12 | Male and female chain wheel transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334205U true CN215334205U (en) | 2021-12-28 |
Family
ID=79566255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121567343.8U Active CN215334205U (en) | 2021-07-12 | 2021-07-12 | Male and female chain wheel transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334205U (en) |
-
2021
- 2021-07-12 CN CN202121567343.8U patent/CN215334205U/en active Active
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