CN214999265U - Hollow speed reducer - Google Patents
Hollow speed reducer Download PDFInfo
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- CN214999265U CN214999265U CN202120078240.9U CN202120078240U CN214999265U CN 214999265 U CN214999265 U CN 214999265U CN 202120078240 U CN202120078240 U CN 202120078240U CN 214999265 U CN214999265 U CN 214999265U
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- bevel gear
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- shaft
- reducing mechanism
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Abstract
The utility model discloses a hollow speed reducer, which relates to the technical field of speed reducers, and comprises a first-stage speed reducing mechanism, a second-stage speed reducing mechanism, a bevel gear shaft, a hollow bevel gear and a flange shaft, wherein the first-stage speed reducing mechanism is in transmission connection with the second-stage speed reducing mechanism, the second-stage speed reducing mechanism is in transmission connection with the bevel gear shaft, the bevel gear shaft is meshed with the hollow bevel gear, and the hollow bevel gear drives the flange shaft to rotate; a first through hole is formed in the axis of the hollow bevel gear, a second through hole is formed in the axis of the flange shaft, and the first through hole is communicated with the second through hole; the utility model discloses a small, avoid the winding technical problem of cable.
Description
Technical Field
The utility model relates to a speed reducer technical field especially relates to a cavity speed reducer.
Background
A part of high-precision power transmission parts, such as a high-precision hollow rotary table, an omnidirectional moving AGV trolley steering wheel steering gear and the like, generally adopt a right-angle steering speed reducer, the reduction ratio of the traditional right-angle steering speed reducer is more than 1:5-50, the volume of the right-angle steering speed reducer larger than 1:60 is very large, the requirement of some precision automation equipment on the small volume of the speed reducer is not met, and the traditional right-angle steering speed reducer cannot solve the problems of cable winding caused by threading from the speed reducer and rotation of the output end of the speed reducer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to realize little volume, avoid the cable winding.
In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
a hollow speed reducer comprises a first-stage speed reducing mechanism, a second-stage speed reducing mechanism, a bevel gear shaft, a hollow bevel gear and a flange shaft, wherein the first-stage speed reducing mechanism is in transmission connection with the second-stage speed reducing mechanism;
the hollow bevel gear is characterized in that a first through hole is formed in the axis of the hollow bevel gear, a second through hole is formed in the axis of the flange shaft, and the first through hole is communicated with the second through hole.
Further, the first-stage speed reducing mechanism includes a first sun gear, a first planetary gear, a first drive disk, and a ring gear, the first sun gear being in mesh with the first planetary gear, the first planetary gear being in mesh with an inner side of the ring gear, and the first planetary gear being pivoted on the first drive disk.
Further, second level reduction gears includes second sun gear, second planetary gear and second drive plate, the fixed center department that sets up at first drive plate of second sun gear, second sun gear and second planetary gear intermeshing, the inboard intermeshing of second planetary gear and ring gear, and the pin joint of second planetary gear is on the second drive plate, the second drive plate drives bevel gear axle and rotates.
Further, the central axis of the first sun gear, the central axis of the first drive disk, the central axis of the second sun gear, the central axis of the second drive disk, and the central axis of the bevel gear shaft are collinear.
Further, the central axis of the bevel gear shaft is collinear with the central axis of the hollow bevel gear.
The utility model has the advantages that: the utility model discloses a first order reduction gears, second level reduction gears, bevel gear shaft and hollow bevel gear's mutually supporting effect realize tertiary speed reduction effect, compare with the conventional art, tertiary speed reduction has also reduced whole volume, on the other hand, the utility model discloses an axle center department at hollow bevel gear has seted up first perforation, and the second perforation has been seted up to the axle center department of flange axle, with first perforation and the perforation intercommunication of second, can walk the line through first perforation and second perforation with cable, trachea, oil pipe, the cable of walking the line does not influence the rotation of flange axle to it turns to the line difficult and easy winding pain point of line to have solved traditional right angle to walk the speed reducer.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the overall structure of the present invention;
fig. 3 is a schematic view of the internal structure of the present invention;
fig. 4 is a schematic structural view of a bevel gear shaft, a hollow bevel gear and a flange shaft according to the present invention;
fig. 5 is an exploded view of the overall structure of the present invention.
The reference signs are:
the first-stage reduction mechanism 1, the first sun gear 11, the first planetary gears 12, the first drive disk 13, the ring gear 14,
the second-stage reduction mechanism 2, the second sun gear 21, the second planetary gears 22, the second transmission disc 23,
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 5, the hollow speed reducer comprises a first-stage speed reducing mechanism 1, a second-stage speed reducing mechanism 2, a bevel gear shaft 3, a hollow bevel gear 4 and a flange shaft 5, wherein the first-stage speed reducing mechanism 1 is in transmission connection with the second-stage speed reducing mechanism 2, the second-stage speed reducing mechanism 2 is in transmission connection with the bevel gear shaft 3, the bevel gear shaft 3 is meshed with the hollow bevel gear 4, the hollow bevel gear 4 drives the flange shaft 5 to rotate, three-stage speed reducing effect is achieved through the mutual matching effect of the first-stage speed reducing mechanism 1, the second-stage speed reducing mechanism 2, the bevel gear shaft 3 and the hollow bevel gear 4, the speed reducing ratio can reach 1:60, and the maximum torque of 150Nm can be output.
The first-stage reduction mechanism 1 includes a first sun gear 11, first planetary gears 12, a first drive plate 13, and a ring gear 14, the first sun gear 11 is intermeshed with the first planetary gears 12, the first planetary gears 12 are intermeshed with the inside of the ring gear 14, and the first planetary gears 12 are pivoted on the first drive plate 13.
The external driving mechanism drives the first sun gear 11 to rotate, the ring gear 14 is fixed because the first planetary gears 12 are meshed with the inner side of the ring gear 14, the first planetary gears 12 are driven to rotate around the first sun gear 11 in the ring gear 14 when the first sun gear 11 rotates, and the first driving disk 13 is driven to rotate when the first planetary gears 12 rotate around the first sun gear 11.
The second-stage reduction mechanism 2 comprises a second sun gear 21, a second planetary gear 22 and a second transmission disc 23, the second sun gear 21 is fixedly arranged at the center of the first transmission disc 13, the second sun gear 21 is meshed with the second planetary gear 22, the second planetary gear 22 is meshed with the inner side of the gear ring 14, the second planetary gear 22 is pivoted on the second transmission disc 23, and the second transmission disc 23 drives the bevel gear shaft 3 to rotate.
The first driving disk 13 drives the second sun gear 21 to rotate when rotating, the gear ring 14 is fixed because the second planet gears 22 are meshed with the inner side of the gear ring 14, the second sun gear 21 drives the second planet gears 22 to rotate around the second sun gear 21 in the gear ring 14 when rotating, and the second driving disk 23 is driven to rotate when the second planet gears 22 rotate around the second sun gear 21.
The central axis of the first sun gear 11, the central axis of the first drive disk 13, the central axis of the second sun gear 21, the central axis of the second drive disk 23, and the central axis of the bevel gear shaft 3 are collinear, and the central axis of the bevel gear shaft 3 is perpendicular to the central axis of the hollow bevel gear 4.
The utility model discloses a theory of operation does:
an external driving mechanism drives the first sun gear 11 to rotate, the gear ring 14 is fixed because the first planetary gears 12 are meshed with the inner side of the gear ring 14, the first planetary gears 12 are driven to rotate around the first sun gear 11 on the inner side of the gear ring 14 when the first sun gear 11 rotates, and the first driving disc 13 is driven to rotate when the first planetary gears 12 rotate around the first sun gear 11, so that primary speed reduction is realized;
the first driving disk 13 drives the second sun gear 21 to rotate when rotating, the gear ring 14 is fixed because the second planet gears 22 are meshed with the inner side of the gear ring 14, the second planet gears 22 are driven to rotate around the second sun gear 21 on the inner side of the gear ring 14 when the second sun gear 21 rotates, and the second driving disk 23 is driven to rotate when the second planet gears 22 rotate around the second sun gear 21, so that two-stage speed reduction is realized;
when the second transmission disc 23 rotates, the bevel gear shaft 3 is driven to rotate, and the bevel gear shaft 3 rotates to drive the hollow bevel gear 4 to rotate, so that three-stage speed reduction is realized;
The above description is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.
Claims (5)
1. A hollow speed reducer is characterized in that: the bevel gear mechanism comprises a first-stage speed reducing mechanism, a second-stage speed reducing mechanism, a bevel gear shaft, a hollow bevel gear and a flange shaft, wherein the first-stage speed reducing mechanism is in transmission connection with the second-stage speed reducing mechanism, the second-stage speed reducing mechanism is in transmission connection with the bevel gear shaft, the bevel gear shaft and the hollow bevel gear are meshed with each other, and the hollow bevel gear drives the flange shaft to rotate;
the hollow bevel gear is characterized in that a first through hole is formed in the axis of the hollow bevel gear, a second through hole is formed in the axis of the flange shaft, and the first through hole is communicated with the second through hole.
2. A hollow speed reducer according to claim 1, wherein: the first-stage speed reducing mechanism comprises a first sun gear, a first planetary gear, a first transmission disc and a gear ring, wherein the first sun gear is meshed with the first planetary gear, the first planetary gear is meshed with the inner side of the gear ring, and the first planetary gear is pivoted on the first transmission disc.
3. A hollow speed reducer according to claim 2, wherein: second level reduction gears includes second sun gear, second planetary gear and second driving disk, the fixed center department that sets up at first driving disk of second sun gear, second sun gear and second planetary gear intermeshing, the inboard intermeshing of second planetary gear and ring gear, and the pin joint of second planetary gear is on the second driving disk, the second driving disk drives bevel gear axle and rotates.
4. A hollow speed reducer according to claim 3, wherein: the central shaft of the first sun gear, the central shaft of the first driving disc, the central shaft of the second sun gear, the central shaft of the second driving disc and the central shaft of the bevel gear shaft are collinear.
5. The hollow speed reducer according to any one of claims 1 to 4, wherein: the central axis of the bevel gear shaft is collinear with the central axis of the hollow bevel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120078240.9U CN214999265U (en) | 2021-01-13 | 2021-01-13 | Hollow speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120078240.9U CN214999265U (en) | 2021-01-13 | 2021-01-13 | Hollow speed reducer |
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| Publication Number | Publication Date |
|---|---|
| CN214999265U true CN214999265U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120078240.9U Active CN214999265U (en) | 2021-01-13 | 2021-01-13 | Hollow speed reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115008988A (en) * | 2022-07-12 | 2022-09-06 | 北京理工大学 | Multifunctional unmanned ammunition transfer trolley driving system |
-
2021
- 2021-01-13 CN CN202120078240.9U patent/CN214999265U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115008988A (en) * | 2022-07-12 | 2022-09-06 | 北京理工大学 | Multifunctional unmanned ammunition transfer trolley driving system |
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