CN210344175U - Multistage planetary reducer - Google Patents
Multistage planetary reducer Download PDFInfo
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- CN210344175U CN210344175U CN201920151576.6U CN201920151576U CN210344175U CN 210344175 U CN210344175 U CN 210344175U CN 201920151576 U CN201920151576 U CN 201920151576U CN 210344175 U CN210344175 U CN 210344175U
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Abstract
The utility model discloses a multi-stage planetary reducer, which comprises a driving motor and a speed reducing mechanism which are fixedly connected through a flange, wherein a speed reducing box of the speed reducing mechanism comprises a first-stage speed reducing box and a second-stage speed reducing box; the first-stage reduction gearbox is provided with a worm and gear reduction device and a first-stage planetary reduction mechanism; the second-stage reduction gearbox is provided with a second-stage planetary reduction mechanism. The utility model discloses a driving motor carries out elementary speed reduction through worm gear decelerator, carries out the second grade through first order planet reduction gears and slows down, carries out tertiary speed reduction through second grade planet reduction gears at last to obtain high moment of torsion low-speed power, have compact structure, small in size, light in weight, use advantages such as nimble and safe and reliable, overcome not enough among the prior art.
Description
Technical Field
The utility model relates to a small-size motor, in particular to multistage planetary reducer.
Background
In real life, especially on the building site, often need adopt some supplementary jacking equipment to be under construction, the great high moment of torsion speed reducer of some volumes that these equipment adopted usually is not only not good installation as drive power, and manufacturing cost is high moreover, in order to reduce manufacturing cost, the utility model discloses a multistage planet slows down and provides high moment of torsion, reduces the volume, the installation of being convenient for.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a multistage planetary reducer is provided, compact structure, small in size to overcome not enough among the prior art.
The technical scheme of the utility model: the utility model provides a multistage planetary reducer, it includes driving motor and reduction gears through the flange rigid coupling, its characterized in that: the reduction gearbox of the speed reducing mechanism comprises a first-stage reduction gearbox and a second-stage reduction gearbox; the first-stage reduction gearbox and the second-stage reduction gearbox are fixedly connected through bolts; the first-stage reduction gearbox is provided with a worm and gear reduction device and a first-stage planetary reduction mechanism; the second-stage reduction gearbox is provided with a second-stage planetary reduction mechanism; the worm gear and worm speed reducer comprises a worm gear and a worm which are meshed with each other, and the worm is directly connected with an output shaft of the driving motor; the first-stage planetary reduction mechanism comprises a first-stage sun gear shaft, more than 2 first-stage planetary gears, a first-stage fixed inner gear ring and a first-stage planet carrier; the first-stage sun wheel shaft is arranged along the axial direction of the worm wheel and is fixedly connected with the worm wheel; the first-stage planet gear is simultaneously meshed with the first-stage sun gear shaft and the first-stage fixed inner gear ring; the second-stage planetary reduction mechanism comprises a second-stage sun wheel shaft, more than 2 second-stage planetary wheels, a second-stage fixed inner gear ring and an output planet carrier; the second-stage planet gear is simultaneously meshed with the second-stage sun gear shaft and the second-stage fixed inner gear ring; the first-stage fixed inner gear ring and the second-stage inner gear ring are respectively and fixedly connected with the first-stage reduction gearbox and the second-stage reduction gearbox; the second-stage sun gear is fixedly connected with the first-stage planet carrier, and the first-stage planet gear and the second-stage planet gear are fixedly connected with the first-stage planet carrier and the output planet carrier through pin shafts respectively.
Preferably, the number of the first-stage planet wheels is 3, and the first-stage planet wheels are uniformly arranged along the radial direction of the first-stage sun wheel shaft.
Preferably, the number of the second-stage planet wheels is 3, and the second-stage planet wheels are uniformly arranged along the radial direction of the second-stage sun wheel shaft.
Preferably, the first stage reduction gearbox and the flange are integrally cast.
Compared with the prior art, the utility model discloses a driving motor carries out elementary speed reduction through worm gear decelerator, carries out the second grade through planet decelerator and slows down, carries out tertiary speed reduction through second grade planet reduction gears at last to obtain high moment of torsion low-speed power, have compact structure, small in size, light in weight, use advantages such as nimble and safe and reliable.
Drawings
The reference numerals are explained below: 1-a first stage reduction gearbox; 2-a worm gear; 3-a worm; 4-first stage sun gear shaft; 5-a first stage planet carrier; 6-first stage fixed gear ring; 7-first stage planet wheel; 8-a second stage reduction gearbox; 9-second stage sun gear shaft; 10-second stage fixed gear ring; 11-a second stage planet wheel; 12-output planet carrier; 13-driving the motor.
Fig. 1 is a schematic structural diagram of the multi-stage planetary speed reducer of the present invention.
Fig. 2 is a sectional view of a reduction mechanism relating to the multi-stage planetary reduction gear of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, which are illustrative only and not limiting, and the scope of the present invention should not be limited thereby.
Like fig. 1-2, the utility model provides a multistage planetary reducer, reduction gears's first reducing gear box 1 and flange integrated into one piece casting shaping, driving motor 13 adopt the low-power motor commonly used, with the flange fixed connection of bolt and reducing gear box 1. The first-stage reduction gearbox 1 and the second-stage reduction gearbox 8 of the reduction mechanism are fixedly connected through bolts; a worm and gear speed reducer and a first planet speed reducing mechanism are arranged in the first-stage reduction gearbox 1; a second-stage planetary reduction mechanism is arranged in the second-stage reduction box 8; the worm and gear speed reducer comprises a worm wheel 2 and a worm 3 which are meshed with each other, and the worm 3 is directly connected with an output shaft of the driving motor 13 through a flat key; the first-stage planetary reduction mechanism comprises a first-stage sun wheel shaft 4, more than 2 first-stage planetary wheels 7, a first-stage fixed inner gear ring 6 and a first-stage planet carrier 5, the second-stage planetary reduction mechanism comprises a second-stage sun wheel shaft 9, more than 2 second-stage planetary wheels 11, a second-stage fixed inner gear ring 10 and an output planet carrier 12, the first-stage sun wheel shaft 4 is arranged along the axial direction of the worm wheel 2 and is fixedly connected with the worm wheel 2 through a flat key, the second-stage sun wheel shaft 9 is fixedly connected with the first-stage planet carrier 5 through an involute spline, the first-stage fixed inner gear ring 6 and the second-stage fixed inner gear ring 10 are respectively and fixedly connected with the first-stage reduction box 1 and the second-stage reduction box 8 through pin shafts, and the first-stage planetary wheels 7; the second-stage planet gears 11 are simultaneously meshed with the second-stage sun gear shaft 9 and the second-stage fixed inner gear ring 10; the first-stage planet gear 7 and the second-stage planet gear 11 are fixedly connected with the first-stage planet carrier 5 and the output planet carrier 12 through pin shafts respectively, and oil seal devices are arranged at the output end and the input end of the first-stage reduction gearbox 1 and the second-stage reduction gearbox 8 respectively.
As a preferred implementation of the above embodiment, the number of the first-stage planet wheels 7 is 3, and the first-stage planet wheels are uniformly distributed along the radial direction of the first-stage sun wheel shaft 4.
As a preferred implementation of the above embodiment, the number of the second-stage planet wheels 11 is 3, and the second-stage planet wheels are uniformly distributed along the radial direction of the second-stage sun wheel shaft 9.
The utility model discloses a theory of operation: the driving motor 13 drives the worm 3 to rotate, the worm 3 drives the worm wheel 2 to rotate, the first-stage sun wheel shaft 4 rotates under the driving of the worm wheel 2, the first-stage planet wheel 7 is meshed with the first-stage sun wheel shaft 4 and the first-stage fixed inner gear ring 6 simultaneously, the first-stage planet wheel 7 is fixed with the first-stage planet carrier 5 through a pin shaft, the first-stage planet carrier 5 can rotate along with the first-stage sun wheel shaft 4, the second-stage sun wheel shaft 9 is fixedly connected with the first-stage planet carrier 5, the first-stage planet carrier 5 rotates to drive the second-stage sun wheel shaft 9 to rotate, the second-stage planet wheel 11 is meshed with the second-stage sun wheel shaft 9 and the second-stage fixed inner gear ring 10 simultaneously, the second-stage planet wheel 11 is fixedly connected with the output planet carrier 12 through a pin shaft, the.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention should be subject to the claims.
Claims (4)
1. The utility model provides a multistage planetary reducer, it includes driving motor and reduction gears through the flange rigid coupling, its characterized in that: the reduction gearbox of the speed reducing mechanism comprises a first-stage reduction gearbox and a second-stage reduction gearbox; the first-stage reduction gearbox and the second-stage reduction gearbox are fixedly connected through bolts; the first-stage reduction gearbox is provided with a worm and gear reduction device and a first-stage planetary reduction mechanism; the second-stage reduction gearbox is provided with a second-stage planetary reduction mechanism; the worm gear and worm speed reducer comprises a worm gear and a worm which are meshed with each other, and the worm is directly connected with an output shaft of the driving motor; the first-stage planetary reduction mechanism comprises a first-stage sun gear shaft, more than 2 first-stage planetary gears, a first-stage fixed inner gear ring and a first-stage planet carrier; the first-stage sun wheel shaft is arranged along the axial direction of the worm wheel and is fixedly connected with the worm wheel; the first-stage planet gear is simultaneously meshed with the first-stage sun gear shaft and the first-stage fixed inner gear ring; the second-stage planetary reduction mechanism comprises a second-stage sun wheel shaft, more than 2 second-stage planetary wheels, a second-stage fixed inner gear ring and an output planet carrier; the second-stage planet gear is simultaneously meshed with the second-stage sun gear shaft and the second-stage fixed inner gear ring; the first-stage fixed inner gear ring and the second-stage inner gear ring are respectively and fixedly connected with the first-stage reduction gearbox and the second-stage reduction gearbox; the second-stage sun gear is fixedly connected with the first-stage planet carrier, and the first-stage planet gear and the second-stage planet gear are fixedly connected with the first-stage planet carrier and the output planet carrier through pin shafts respectively.
2. The multi-stage planetary reducer according to claim 1, wherein: the number of the first-stage planet wheels is 3, and the first-stage planet wheels are uniformly arranged along the radial direction of the first-stage sun wheel shaft.
3. The multi-stage planetary reducer according to claim 1, wherein: the number of the second-stage planet wheels is 3, and the second-stage planet wheels are uniformly arranged along the radial direction of the second-stage sun wheel shaft.
4. The multi-stage planetary reducer according to claim 1, wherein: the first-stage reduction gearbox and the flange are integrally cast and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920151576.6U CN210344175U (en) | 2019-01-29 | 2019-01-29 | Multistage planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920151576.6U CN210344175U (en) | 2019-01-29 | 2019-01-29 | Multistage planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210344175U true CN210344175U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920151576.6U Active CN210344175U (en) | 2019-01-29 | 2019-01-29 | Multistage planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210344175U (en) |
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2019
- 2019-01-29 CN CN201920151576.6U patent/CN210344175U/en active Active
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