CN211202766U - Speed reducer - Google Patents

Speed reducer Download PDF

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Publication number
CN211202766U
CN211202766U CN201921774074.5U CN201921774074U CN211202766U CN 211202766 U CN211202766 U CN 211202766U CN 201921774074 U CN201921774074 U CN 201921774074U CN 211202766 U CN211202766 U CN 211202766U
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China
Prior art keywords
gear
positive
sun gear
sun
output
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CN201921774074.5U
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Chinese (zh)
Inventor
肖祖荣
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肖祖荣
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Priority to CN201921774074.5U priority Critical patent/CN211202766U/en
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Abstract

The utility model discloses a simple structure, production simple process, low in production cost, small, transmission range is big, the speed reducer of easy mechatronics, it includes positive sun gear and anti-sun gear, positive sun gear and anti-sun gear share one or more output planet wheel, just, the axial lead coincidence of anti-sun gear, output planet wheel installs on the planet arm, the fixed perpendicular connection of planet arm is on the output shaft, positive sun gear and anti-sun gear rotate with the rotation of turning to opposite relatively and drive one or more output planet wheel rotations, and simultaneously with the difference in rotation speed of positive sun gear and anti-sun gear, make output planet wheel revolve around the axial lead revolution of positive sun gear and anti-sun gear, the revolution of output planet wheel drives planet arm and output shaft rotation, the utility model discloses mainly used power is big, the mechanical transmission that the drive ratio scope is big.

Description

Speed reducer
Technical Field
The utility model belongs to mechanical speed reduction transmission.
Background
At present, in the known speed reducer, the cylindrical gear speed reducer has a small transmission ratio range and a large volume, while the needle thread balance wheel speed reducer has a large volume and a small power, and the worm gear speed reducer has a large volume and is easy to wear.
Disclosure of Invention
In order to overcome the shortcoming that current speed reducer drive ratio scope is little, bulky and do not benefit from mechatronic, the to-be-solved technical problem of the utility model is to provide a reduction gear, it adopts two planetary gear sets of sharing planet wheel, and the different rotational speeds of two sun gears of coaxial positive and negative rotation drive shared planet wheel and planet arm revolution, carry out mechanical transmission.
In order to solve the technical problem, the utility model discloses a technical scheme is: two sun gears in the two planetary gear sets are arranged on the same axis, so that the two sun gears share one or more planetary gears. The two sun gears rotate in a positive-negative mode on the same axis to serve as input sun gears, the positive sun gear serves as a positive sun gear, the negative sun gear serves as a negative sun gear, the cylindrical gear fixedly connected with the negative sun gear serves as a negative gear, the cylindrical gear fixedly connected with the positive sun gear serves as a spur gear, the positive sun gear, the negative sun gear, the positive gear and the negative gear are all on the same axis, the shaft of the negative sun gear connected with the negative gear serves as a negative shaft, and the negative shaft is connected with the negative sun gear and the negative gear at two ends through center holes of the positive sun gear and the spur gear. And the planet wheel shared by the two sun wheels is used as an output planet wheel. The planetary arm on the output planetary gear is used as an output end, and a shaft which is coaxial with the sun gear and is fixedly and vertically connected with the planetary arm is used as an output shaft. The cylindrical gear engaged with the counter gear serves as an input gear, which is an input end. The cylindrical gear meshed with the spur gear serves as a positive driven input gear, and the cylindrical gear coaxially and fixedly connected with the positive driven input gear and meshed with the input gear serves as a positive input gear. The input gear drives the reverse gear to rotate reversely, and simultaneously drives the positive input gear and the positive driven gear to rotate reversely, the positive driven gear drives the spur gear to rotate positively, the spur gear is fixedly connected with the positive sun gear, and the reverse gear is fixedly connected with the reverse sun gear, so that the two sun gears rotate positively and reversely, when the rotating speeds of the two sun gears are different, the common output planetary gear and the planetary arm are driven to revolve around the axis line of the sun gear, and the planetary arm drives the output shaft to output corresponding rotating speeds.
A speed reducer is characterized by comprising a positive sun wheel and a negative sun wheel, wherein the positive sun wheel and the negative sun wheel share one or more output planetary wheels, the axial leads of the positive sun wheel and the negative sun wheel are overlapped, the output planetary wheels are arranged on a planetary arm, the planetary arm is fixedly and vertically connected onto an output shaft, the positive sun wheel and the negative sun wheel rotate in opposite directions to drive one or more output planetary wheels to rotate, the output planetary wheels revolve around the axial leads of the positive sun wheel and the negative sun wheel according to the rotation speed difference of the positive sun wheel and the negative sun wheel, and the revolution of the output planetary wheels drives the planetary arm and the output shaft to rotate.
Preferably, the device comprises a spur gear, a counter gear, a positive driven input gear, a positive input gear and an input gear, wherein the counter sun gear is installed on a counter shaft, the positive sun gear and the spur gear are fixed on the same hollow shaft, the counter shaft penetrates through center holes of the positive sun gear and the spur gear, the counter sun gear and the counter gear are fixedly connected on the same shaft, the positive driven input gear and the positive input gear are fixedly connected on the same shaft, the positive sun gear and the counter sun gear share one or more output planet gears, the input gear is meshed to drive the counter gear to rotate reversely, the counter gear drives the counter sun gear to rotate reversely, the input gear is meshed to drive the positive input gear to rotate reversely, the positive driven input gear coaxial with the positive input gear is reversely rotated to drive the spur gear meshed with the positive driven input gear to rotate forwardly, and accordingly the positive sun gear coaxial with.
The utility model has the advantages that: the structure is simple and compact, the volume is small, the power is large, the transmission ratio range is large, the production process is simple, the production cost is low, and the electromechanical integration is easier.
Drawings
The present invention will be further explained with reference to the drawings and examples
FIG. 1 is a working schematic diagram of the present invention
In the figure, 1 is an input gear 2, a reverse gear 3, a reverse sun gear 4, a positive input gear 5, a positive slave input gear 6, a spur gear 7, a positive sun gear 8, an output planet gear 9, a reverse shaft 10, a planet arm 11, a base 12 and an output shaft
Detailed Description
In fig. 1, a positive sun gear 7 and a negative sun gear 3 are mounted on the same axis, and two sun gears share one or more output planet gears 8, the output planet gears 8 are mounted on a planet arm 10, the planet arm 10 is fixedly and vertically connected to an output shaft 12, a spur gear 6 and the positive sun gear 7 are fixedly connected on the same axis, the spur gear 6 is meshed with a positive driven input gear 5, the positive driven input gear 5 and a positive input gear 4 are fixedly connected on the same axis, the positive input gear 4 is meshed with an input gear 1, a reverse shaft 9 fixedly connects the negative sun gear 3 and a reverse gear 2 on the same axis through central holes of the positive sun gear 7 and the spur gear 6, and the reverse gear 2 is meshed with the input gear 1. When the number of revolutions of the counter sun gear 3 is the same as that of the positive sun gear 7 and the directions are opposite, the output planet gear 8 only rotates on the planet arm 10 and cannot drive the planet arm 10 to revolve around the axis of the sun gear, so that the output shaft 12 does not rotate. When the number of revolutions of the reverse sun gear 3 is larger than that of the positive sun gear 7, and the direction is opposite, the reverse sun gear 3 rotates for more than the number of revolutions of the positive sun gear 7, the reverse sun gear 3 rotates for more than the number of revolutions, the output planet gear 8 is driven to rotate, the positive sun gear 7 is fixed, the output planet gear 8 rotates, the planet arm 10 is driven to revolve around the sun gear when the output planet gear 8 rotates, and the planet arm 10 drives the output shaft 12 to output corresponding rotating speed. The same principle applies when the positive sun gear 7 is rotated in the opposite direction to the negative sun gear 3. When the input gear 1 rotates to drive the counter gear 2 to rotate reversely, the counter gear 2 drives the counter sun gear 3 to rotate reversely together. Meanwhile, the input gear 1 can drive the positive input gear 4 to rotate reversely, the positive input gear 4 drives the positive driven input gear 5 to rotate reversely, the positive driven input gear 5 can drive the spur gear 6 to rotate positively, and the spur gear 6 can drive the positive sun gear 7 to rotate positively. The rotation directions of the positive sun wheel 7 and the negative sun wheel 3 are opposite, the rotation speed of the negative sun wheel 3 is determined by the setting of the input gear 1 and the negative sun wheel 2, the rotation speed of the positive sun wheel 7 is determined by the setting of the input gear 1, the positive input gear 4, the negative input gear 5 and the spur gear 6, so that the negative sun wheel 3 and the positive sun wheel 7 can set different rotation speeds according to different requirements, and the directions are opposite, so that the output planet wheel 8 and the planet arm 10 can be driven to revolve around the sun wheel, the planet arm 10 drives the output shaft 12 to rotate, and the output shaft 12 can obtain corresponding output rotation speed.

Claims (2)

1. The speed reducer is characterized by comprising a positive sun wheel (7) and a negative sun wheel (3), wherein the positive sun wheel (7) and the negative sun wheel (3) share one or more output planetary wheels (8), the axial leads of the positive sun wheel and the negative sun wheel are overlapped, the output planetary wheels (8) are arranged on planetary arms (10), the planetary arms (10) are fixedly and vertically connected to an output shaft (12), the positive sun wheel (7) and the negative sun wheel (3) rotate in opposite directions to drive one or more output planetary wheels (8) to rotate, and simultaneously, the output planetary wheels (8) revolve around the axial leads of the positive sun wheel and the negative sun wheel according to the rotation speed difference of the positive sun wheel (7) and the negative sun wheel (3), and the revolution of the output planetary wheels (8) drives the planetary arms (10) and the output shaft (12) to rotate.
2. The speed reducer according to claim 1, wherein: comprises a spur gear (6), a counter gear (2), a positive driven input gear (5), a positive input gear (4) and an input gear (1), wherein the counter sun gear (3) is arranged on a counter shaft (9), the positive sun gear (7) and the spur gear (6) are fixed on the same hollow shaft, the counter shaft (9) passes through the central holes of the positive sun gear (7) and the spur gear (6), the counter sun gear (3) and the counter gear (2) are fixedly connected on the same shaft, the positive driven input gear (5) and the positive input gear (4) are fixedly connected on the same shaft, the input gear (1) is meshed to drive the counter gear (2) to rotate reversely, the counter gear (2) drives the counter sun gear (3) to rotate reversely, the input gear (1) is meshed to drive the positive driven input gear (4) to rotate reversely, the spur gear (6) which is coaxial with the positive driven input gear (4) is driven by the positive driven input gear (5) to rotate reversely and meshed with the positive driven input gear, thereby driving the positive sun gear (7) which is coaxial with the spur gear (6) to rotate positively.
CN201921774074.5U 2019-10-22 2019-10-22 Speed reducer Active CN211202766U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921774074.5U CN211202766U (en) 2019-10-22 2019-10-22 Speed reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921774074.5U CN211202766U (en) 2019-10-22 2019-10-22 Speed reducer

Publications (1)

Publication Number Publication Date
CN211202766U true CN211202766U (en) 2020-08-07

Family

ID=71861418

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921774074.5U Active CN211202766U (en) 2019-10-22 2019-10-22 Speed reducer

Country Status (1)

Country Link
CN (1) CN211202766U (en)

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