CN212616139U - Double-speed variable-speed gear mechanism of mahjong machine - Google Patents
Double-speed variable-speed gear mechanism of mahjong machine Download PDFInfo
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- CN212616139U CN212616139U CN202021140447.6U CN202021140447U CN212616139U CN 212616139 U CN212616139 U CN 212616139U CN 202021140447 U CN202021140447 U CN 202021140447U CN 212616139 U CN212616139 U CN 212616139U
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Abstract
A double-speed variable-speed gear mechanism of a mahjong machine comprises a driving motor and is characterized in that the mechanism comprises a driving gear, a first transmission gear, a second transmission gear, an intermediate gear and an output gear, the driving gear is mounted on an output shaft of the driving motor, the driving gear is respectively meshed with the first transmission gear and the second transmission gear, the first transmission gear is mounted on an intermediate shaft through a first one-way bearing, the intermediate gear is mounted on the intermediate shaft, and the first transmission gear is coaxially linked with the intermediate gear; the second transmission gear is mounted on an output shaft through a second one-way bearing, an output gear is mounted on the output shaft, the second transmission gear is coaxially linked with the output gear, and the intermediate gear is meshed with the output gear; the set rotating directions of the first one-way bearing and the second one-way bearing are opposite. The utility model provides a double-speed variable-speed gear mechanism of a mahjong machine, which realizes low-cost speed change and good practicability.
Description
Technical Field
The utility model belongs to mahjong machine motor trade relates to a actuating mechanism for mahjong machine.
Background
Most of the existing driving motors for mahjong machines only provide forward and reverse rotation functions, the rotating speed of the driving motors is constant, and the existing driving motors have defects in the use process of the mahjong machines; the very small part of the drive motor provides high and low speed functions. The small part of the motor is only used in special occasions, and is high in cost and not beneficial to popularization.
Disclosure of Invention
In order to overcome the defect that the existing mahjong machine driving mode can not realize low-cost speed change, the utility model provides a double-speed change gear mechanism of a mahjong machine, which realizes low-cost speed change and has better practicability.
The utility model provides a technical scheme that its technical problem adopted is:
a double-speed variable-speed gear mechanism of a mahjong machine comprises a driving motor and is characterized in that the mechanism comprises a driving gear, a first transmission gear, a second transmission gear, an intermediate gear and an output gear, the driving gear is mounted on an output shaft of the driving motor, the driving gear is respectively meshed with the first transmission gear and the second transmission gear, the first transmission gear is mounted on an intermediate shaft through a first one-way bearing, the intermediate gear is mounted on the intermediate shaft, and the first transmission gear is coaxially linked with the intermediate gear; the second transmission gear is mounted on an output shaft through a second one-way bearing, an output gear is mounted on the output shaft, the second transmission gear is coaxially linked with the output gear, and the intermediate gear is meshed with the output gear; the set rotating directions of the first one-way bearing and the second one-way bearing are opposite.
Further, the number of teeth of first drive gear, second drive gear is a, the number of teeth of intermediate gear is b, the number of teeth of driving gear is c, the number of teeth of output gear is d, wherein, a, b, c, d are positive integers, a < b < c < d.
The beneficial effects of the utility model are that: low-cost speed change is realized, and the practicability is better.
Drawings
FIG. 1 is an external schematic view of a two-speed change gear mechanism of a mahjong machine.
FIG. 2 is an internal schematic view of a two-speed change gear mechanism of the mahjong machine.
FIG. 3 is a top view of a two-speed ratio gear mechanism.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the double-speed change gear mechanism of the mahjong machine comprises a driving motor, the mechanism comprises a driving gear 1, a first transmission gear 2, a second transmission gear 3, an intermediate gear 4 and an output gear 5, the driving gear 1 is installed on an output shaft of the driving motor, the driving gear 1 is respectively meshed with the first transmission gear 2 and the second transmission gear 3, the first transmission gear 2 is installed on an intermediate shaft through a first one-way bearing, the intermediate gear 4 is installed on the intermediate shaft, and the first transmission gear 2 is coaxially linked with the intermediate gear 4; the second transmission gear is arranged on an output shaft through a second one-way bearing 3, an output gear 5 is arranged on the output shaft, the second transmission gear 3 is coaxially linked with the output gear 5, and the intermediate gear 4 is meshed with the output gear 5; the set rotating directions of the first one-way bearing and the second one-way bearing are opposite.
Further, the number of teeth of first drive gear 2, second drive gear 3 is a, the number of teeth of intermediate gear 4 is b, the number of teeth of driving gear 1 is c, the number of teeth of output gear 5 is d, wherein, a, b, c, d are positive integers, and a < b < c < d.
In this embodiment, the driving gear 1 is driven by a driving motor, the driving motor is a motor capable of rotating forward and backward, the output speed of the driving motor is constant, and the driving gear drives the first transmission gear or the second transmission gear, and because a coaxial but reverse one-way bearing is fixed inside the first transmission gear or the second transmission gear respectively, the driving gear can only drive one of the transmission gears, that is, only one transmission gear generates torque for each rotation direction no matter in forward rotation or reverse rotation, and the transmission gear generating the torque drives the lower gear to rotate, thereby achieving the effect of outputting the torque. Because the first transmission gear drives the output gear through the intermediate gear and the second transmission gear directly drives the output gear, the positive and negative rotation functions of the driving motor can respectively generate two homodromous rotating speeds.
Example (c): the number of teeth of the driving gear is 19 teeth, the number of teeth of the first transmission gear is 16 teeth, the number of teeth of the second transmission gear is 16 teeth, the number of teeth of the middle gear is 15 teeth, and the number of teeth of the output gear is 23 teeth.
From the overlooking perspective, if the driving gear rotates clockwise 100 revolutions per minute, the first one-way bearing generates torque to drive the first transmission gear, the second one-way bearing generates no torque, the rotating speed of the intermediate gear is 100 x (19/16) revolutions per minute, and the rotating speed of the output gear is 100 x (19/16) x (15/23) revolutions per minute; if the driving gear rotates 100 revolutions per minute anticlockwise, the second one-way bearing generates torque to drive the second transmission gear, no torque is generated by the first one-way bearing, the rotating speed of the second transmission gear is 100 x (19/16) revolutions per minute, then the rotating speed of the output gear is 100 x (19/16) revolutions per minute, and output of two different speeds is achieved.
Claims (2)
1. A double-speed variable-speed gear mechanism of a mahjong machine comprises a driving motor and is characterized in that the mechanism comprises a driving gear, a first transmission gear, a second transmission gear, an intermediate gear and an output gear, the driving gear is mounted on an output shaft of the driving motor, the driving gear is respectively meshed with the first transmission gear and the second transmission gear, the first transmission gear is mounted on an intermediate shaft through a first one-way bearing, the intermediate gear is mounted on the intermediate shaft, and the first transmission gear is coaxially linked with the intermediate gear; the second transmission gear is mounted on an output shaft through a second one-way bearing, an output gear is mounted on the output shaft, the second transmission gear is coaxially linked with the output gear, and the intermediate gear is meshed with the output gear; the set rotating directions of the first one-way bearing and the second one-way bearing are opposite.
2. The two-speed-changing gear mechanism of a mahjong machine as claimed in claim 1, wherein the number of teeth of the first transmission gear and the second transmission gear is a, the number of teeth of the middle gear is b, the number of teeth of the driving gear is c, and the number of teeth of the output gear is d, wherein a, b, c and d are positive integers, and a < b < c < d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021140447.6U CN212616139U (en) | 2020-06-18 | 2020-06-18 | Double-speed variable-speed gear mechanism of mahjong machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021140447.6U CN212616139U (en) | 2020-06-18 | 2020-06-18 | Double-speed variable-speed gear mechanism of mahjong machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212616139U true CN212616139U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021140447.6U Active CN212616139U (en) | 2020-06-18 | 2020-06-18 | Double-speed variable-speed gear mechanism of mahjong machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212616139U (en) |
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2020
- 2020-06-18 CN CN202021140447.6U patent/CN212616139U/en active Active
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