CN220016040U - Supporting device for planetary gear - Google Patents
Supporting device for planetary gear Download PDFInfo
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- CN220016040U CN220016040U CN202321487692.8U CN202321487692U CN220016040U CN 220016040 U CN220016040 U CN 220016040U CN 202321487692 U CN202321487692 U CN 202321487692U CN 220016040 U CN220016040 U CN 220016040U
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- supporting surface
- bearing
- sun gear
- shaft
- supporting
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- 238000002955 isolation Methods 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 17
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a supporting device of a planetary gear, which comprises a planetary carrier, a first shell and a second shell; the planet carrier is provided with a first supporting surface and a second supporting surface which are oppositely arranged and have a distance larger than the thickness of the planet pinion, and an outer edge surface is connected between the first supporting surface and the second supporting surface; the sun gear shaft penetrates through the first supporting surface and penetrates out of the second supporting surface; the planetary pinion shaft is fixedly sleeved with a third bearing and a fourth bearing, two ends of the planetary pinion shaft penetrate through a first supporting surface and a second supporting surface respectively, an output part is fixedly connected to the side, away from the first supporting surface, of the second supporting surface, an output shaft is connected to the output part, and the output shaft and the sun gear shaft are coaxially arranged; the output shaft penetrates out of the first shell, and the sun gear shaft penetrates out of the second shell; the planetary gear supporting device has the advantages of simple structure, convenient installation and operation, regular appearance and convenient connection, and only the power input shaft and the power output shaft are arranged outside the planetary gear supporting device.
Description
Technical Field
The utility model belongs to the technical field of power transmission equipment, and particularly relates to a supporting device of a planetary gear.
Background
The planetary gear includes a sun gear, a plurality of planetary pinions disposed around the sun gear, and an outer stationary ring gear surrounding the plurality of planetary pinions. In operation, the rotation and revolution of the pinion gears are caused by the rotational motion input to the sun gear, and the revolution motion of the pinion gears is output, whereby the rotational motion is decelerated. Because the number of gears is large in the planetary gears, particularly the rotation and revolution of the planetary pinions are involved, and the input shaft and the output shaft are involved, the installation and fixation of the planetary pinions, the sun gears and the external fixed ring gear in the planetary gears are complex. In the prior art, the supporting device of the planetary gear is complex in structure and irregular in appearance, and relates to a plurality of structural parts, the mounting operation is complex, a plurality of rotating shafts are arranged outside the planetary gear, and the problem of connection errors is easy to occur.
Disclosure of Invention
The utility model aims to provide a supporting device for a planetary gear, which has the advantages of simple structure, convenient installation and operation and regular appearance, and is convenient to connect because only a power input shaft and a power output shaft are arranged outside.
The technical scheme of the utility model relates to a supporting device of a planetary gear, which comprises a planetary carrier, a first shell and a second shell, wherein the first shell is arranged with the planetary carrier, and the second shell is arranged with the first shell;
the planet carrier is provided with a first supporting surface and a second supporting surface which are oppositely arranged and have a distance larger than the thickness of the planet pinion, and an outer edge surface is connected between the first supporting surface and the second supporting surface;
the sun gear shaft penetrates through the first supporting surface and penetrates out of the second supporting surface, and the sun gear is fixedly sleeved on the sun gear shaft and is arranged between the first supporting surface and the second supporting surface; the sun gear shaft is fixedly sleeved with a first bearing and a second bearing, and the first bearing and the second bearing are fixedly connected with the first supporting surface and the second supporting surface respectively;
the planet pinion is arranged between the first supporting surface and the second supporting surface and meshed with the sun gear, the planet pinion passes through the planet pinion shaft, a third bearing and a fourth bearing are fixedly sleeved on the planet pinion shaft, two ends of the planet pinion shaft respectively pass through the first supporting surface and the second supporting surface, and the third bearing and the fourth bearing are respectively fixedly connected with the first supporting surface and the second supporting surface;
the second supporting surface is far away from the first supporting surface, an output part is fixedly connected to the second supporting surface, an output shaft hole is formed in the output part, an output shaft is fixedly connected in the output shaft hole, and the output shaft and a sun gear shaft are coaxially arranged;
the outer edge surface is provided with avoidance grooves which are matched with the number of the planet pinions, the outer peripheral surfaces of the planet pinions penetrate out of the avoidance grooves and are meshed with the outer fixed inner gear ring, the outer fixed inner gear ring is fixedly connected with the first shell, the first shell is fixedly connected with a connecting plate, the connecting plate is fixedly provided with a fifth bearing, and the fifth bearing and the output shaft are coaxially arranged and sleeved outside the output part;
the output shaft is penetrated out of the first shell, and the sun gear shaft is penetrated out of the second shell.
Preferably, the first supporting surface and the second supporting surface are both circular and symmetrically arranged, the sun gear shaft penetrates through the axis of the first supporting surface, the planet pinions are arranged on the outer side of the sun gear in a uniformly distributed mode, the cross section of the output part is circular, the output shaft and the output part are coaxially arranged, and the fifth bearing is sleeved outside the output part.
Preferably, the output shaft hole has a bottom surface, and the bottom surface isolates the output shaft from the sun gear shaft; the output part is integrally formed with the second supporting surface, the isolation surface is formed outside the output part, the isolation surface is used for isolating the connecting plate and the second supporting surface, a plurality of supporting balls are uniformly distributed on the side surface of the isolation surface, which faces the connecting plate, of the isolation surface, and the side surface of the connecting plate, which faces the isolation surface, is contacted with the supporting balls.
Preferably, the outer edge is cylindrical, the avoidance groove is arc-shaped, and the chord length of the avoidance groove in the arc shape is larger than the diameter of the planet pinion and larger than the diameter of the sun gear.
Preferably, the side face of the external fixed annular gear, which faces the second supporting surface, is fixedly connected with a connecting circular surface, the first shell and the second shell are both in a cylindrical groove shape with an opening, the opening position of the first shell is detachably fixedly connected with the connecting circular surface, the inner bottom surface of the first shell faces the second supporting surface and is fixedly connected with the connecting plate, and the inner bottom surface of the second shell faces the first supporting surface and is detachably fixedly connected with the first shell.
Preferably, the sun gear shaft and the output shaft are respectively sleeved with a sixth bearing and a seventh bearing, and the sixth bearing and the seventh bearing are respectively installed with the second shell and the first shell.
The technical scheme of the utility model provides a supporting device for a planetary gear, which has the beneficial effects that: the sun gear, the plurality of planet pinions and the external fixed annular gear are fixed through the whole supporting device formed by the first supporting surface, the second supporting surface, the outer edge surface and the output part, the structure is simple, the installation is convenient, the external structure is regular, the connection, the installation and the arrangement with external equipment are facilitated, and only one power input shaft (sun gear shaft) and one output shaft are arranged outside the supporting device, so that the connection with the power equipment is facilitated.
Drawings
Fig. 1 is a schematic view of the external structure of a planetary gear supporting device according to the present utility model.
Fig. 2 is an internal cross-sectional view of a planetary gear supporting device according to the present utility model.
Fig. 3 is a schematic diagram of meshing of a planet pinion and an outer fixed ring gear in the present technical solution.
Fig. 4 is a schematic diagram of meshing of a sun gear, planet pinion and an external fixed ring gear in the present solution.
Fig. 5 is a view showing mounting positions of the planet carrier, the first housing and the second housing in the present embodiment.
Fig. 6 is a schematic diagram of a structure of a planet carrier in the present technical solution.
Detailed Description
In order to facilitate the understanding of the technical scheme of the present utility model by those skilled in the art, the technical scheme of the present utility model will be further described with reference to specific embodiments and drawings attached to the specification.
As shown in fig. 1 and 6, the supporting device for a planetary gear according to the present utility model includes a carrier 100, a first housing 10, and a second housing 11, wherein the first housing 10 is mounted to the carrier 100, and the second housing 11 is mounted to the first housing 10.
As shown in fig. 5 and 2, the planet carrier 100 has a first support surface 1 and a second support surface 2 which are disposed opposite to each other and spaced apart by a distance greater than the thickness of the planet pinion 102, and an outer edge surface 3 is connected between the first support surface 1 and the second support surface 2, and the outer edge surface 3 connects the first support surface 1 and the second support surface 2 as a whole. The sun gear shaft 104 penetrates through the first supporting surface 1 and penetrates out of the second supporting surface 2, and the sun gear 101 is fixedly sleeved on the sun gear shaft 104 and is arranged between the first supporting surface 1 and the second supporting surface 2. The sun gear shaft 104 is fixedly sleeved with a first bearing 21 and a second bearing 22, and the first bearing 21 and the second bearing 22 are fixedly connected with the first supporting surface 1 and the second supporting surface 2 respectively. The sun gear shaft 104 is connected with a power system through the penetrating end of the first supporting surface 1, and the sun gear shaft 104 is driven to rotate by the power system, so that the sun gear 101 drives the planet pinion 102 to rotate, the outer part of the planet pinion 102 is meshed with the outer fixed annular gear 103, and the planet pinion 102 revolves while rotating, namely the planet carrier 100 rotates. In this solution, the mounting of the sun gear shaft 104 with the first support surface 1 and the second support surface 2 is achieved by means of the first bearing 21 and the second bearing 22, so that the sun gear shaft 104 rotates about its own axis under the drive of an external power system.
In the technical scheme, a planet pinion 102 is arranged between a first supporting surface 1 and a second supporting surface 2 and meshed with a sun gear 101, the planet pinion 102 passes through a planet pinion shaft 105, a third bearing 23 and a fourth bearing 24 are fixedly sleeved on the planet pinion shaft 105, two ends of the planet pinion shaft respectively pass through the first supporting surface 1 and the second supporting surface 2, and the third bearing 23 and the fourth bearing 24 are respectively fixedly connected with the first supporting surface 1 and the second supporting surface 2. The planet pinion shafts 105 are fixedly mounted with the first and second support surfaces 1, 2 by means of the third and fourth bearings 23, 24 such that the planet pinion 102 can rotate.
In the technical scheme, an output part 5 is fixedly connected to the side, away from the first supporting surface 1, of the second supporting surface 2. The output part 5 is provided with an output shaft hole 6, an output shaft 13 is fixedly connected in the output shaft hole 6, and the output shaft 13 and the sun gear shaft 104 are coaxially arranged. The output unit 5 is provided such that the output shaft 13 is fixedly connected to the carrier 100, and the rotational movement of the carrier 100 is output, that is, the power is input from the sun gear shaft 104 and output from the output shaft 13. The output part 5 and the second supporting surface are integrally formed, so that the strength of the planet carrier 100 is ensured, the planet carrier 100 is taken as a whole, the installation of the output part 5 is avoided, the installation of a planet gear is simplified, meanwhile, the power transmission capability of the planet carrier is ensured, and the integral failure rate of the planet gear is reduced.
In the technical scheme, the outer edge surface 3 is provided with avoidance grooves 4 which are matched with the number of the planet pinions 102, and the outer peripheral surface of the planet pinions 102 penetrates out of the avoidance grooves 4 and is meshed with the outer fixed annular gear 103. The external fixed ring gear 103 is fixedly connected with the first casing 10, a connecting plate 12 is fixedly connected on the first casing 10, a fifth bearing 25 is fixedly arranged on the connecting plate 12, and the fifth bearing 25 and the output shaft 13 are coaxially arranged and sleeved outside the output part 5. The first housing is connected to the planet carrier 100 through a fifth bearing, the rotation of the planet carrier does not affect the fixing of the first housing, the outside of the first housing is fixed on the corresponding device or base, the first housing is fixedly mounted, and the planet carrier rotates in the first housing. The first housing enables the overall installation of the planet gears while enabling the installation of the planet carrier 100, i.e. the sun gear, the planet pinion and the external stationary ring gear.
In this technical scheme, output shaft 13 is worn out by first casing 10, and sun gear shaft 104 is worn out by second casing 11, only can observe power input shaft (sun gear shaft 104) and power output shaft (output shaft 13) by the planetary gear outside, and the structure is regular simple, when this planetary gear is connected with external equipment, is difficult for appearing the misconnection problem.
In this technical scheme, first holding surface 1 and second holding surface 2 are circular and symmetry setting, and sun gear shaft 104 passes by first holding surface 1 axis position, and first holding surface and second holding surface are all with sun gear shaft 104 axisymmetry by oneself, simple structure is stable, and planet carrier 100 stable in structure is convenient for install and use. The planet pinions 102 are arranged on the outer side of the sun gear 101 and uniformly distributed on the outer side of the sun gear 101, the cross section of the output part 5 is circular, the output shaft 13 is coaxially arranged with the output part 5, and the sun gear shaft 104 and the output shaft 5 are coaxial and coaxial with the whole planet carrier, so that the structure is stable and the stress is uniform. The fifth bearing 25 is sleeved outside the output part 5, so that the first shell and the planet carrier 100 are installed, and the installation is convenient, simple and reliable.
In the technical scheme, the hole 6 of the output shaft 13 is provided with a bottom surface 9, and the bottom surface 9 isolates the output shaft 13 from the sun gear shaft 104, so that the output shaft and the sun gear shaft are prevented from being interfered by installation. The output part 5 is integrally formed with the second support surface 2, and ensures the strength and stability of the whole planet carrier 100. The isolation surface 7 is formed outside the output part 5 integrally, the isolation surface 7 isolates the connecting plate 12 from the second supporting surface 2, the installation and the limit of the connecting plate 12 are realized, and the interference between the installation of the connecting plate and the second supporting surface is avoided. The side of the isolation surface 7 facing the connecting plate 12 is uniformly provided with a plurality of supporting balls, the side of the connecting plate 12 facing the isolation surface 7 is contacted with the supporting balls, the supporting balls are arranged, friction between the isolation surface 7 and the connecting plate is reduced, good installation of the connecting plate is ensured, and smooth rotation of the planet carrier is ensured. The radius of the isolation surface 7 is smaller than the distance from the planet pinion shaft 105 to the sun gear shaft 104, and the distance between the isolation surface 7 and the second supporting surface is larger than the thickness of the fourth bearing 24, so that the installation of the fourth bearing 24 is not affected.
In the technical scheme, the outer edge surface 3 is cylindrical, the avoidance groove 4 is arc-shaped, the chord length of the avoidance groove 4 in arc shape is larger than the diameter of the planet pinion 102 and larger than the diameter of the sun gear 101, the integral forming of the planet carrier is ensured, and meanwhile, the installation of the planet pinion and the sun gear is convenient.
In this technical scheme, the side rigid coupling of outer fixed ring gear 103 towards second holding surface 2 has connection round surface 14, and first casing 10 and second casing 11 all are the open-ended cylinder groove form that has, and the open position of first casing 10 can dismantle the rigid coupling with connection round surface 14, and the interior bottom surface 9 of first casing 10 is towards second holding surface 2 and with connecting plate 12 rigid coupling, and the interior bottom surface 9 of second casing 11 is towards first holding surface 1 and open position and first casing 10 can dismantle the rigid coupling. The mounting of the outer stationary ring gear 103 is achieved while the first and second housings are mounted with the carrier 100. The integral installation of the planetary gear is realized through the first shell and the second shell. The first shell and the second shell are cylindrical, so that the overall appearance of the planetary gear is regular, and the planetary gear is convenient to process, assemble, package, install and maintain.
In this technical solution, the sun gear shaft 104 and the output shaft 13 are further sleeved with a sixth bearing 26 and a seventh bearing 27, and the sixth bearing 26 and the seventh bearing 27 are respectively mounted with the second housing and the first housing. The sun gear shaft 104 and the output shaft 13 are mounted with the second housing and the first housing by means of the sixth bearing 26 and the seventh bearing 27, respectively, the sun gear shaft 104 and the output shaft 13 penetrating the second housing and the first housing, respectively, and being rotatable about the telescopic axis.
While the present utility model has been described above by way of example with reference to the embodiments and the accompanying drawings, it is apparent that the specific implementation of the present utility model is not limited by the foregoing, and it is within the scope of the present utility model to apply the inventive concept and technical solution to other situations without any substantial improvement or improvement.
Claims (6)
1. A planetary gear supporting device, comprising a planet carrier, a first housing and a second housing, wherein the first housing is mounted with the planet carrier, and the second housing is mounted with the first housing;
the planet carrier is provided with a first supporting surface and a second supporting surface which are oppositely arranged and have a distance larger than the thickness of the planet pinion, and an outer edge surface is connected between the first supporting surface and the second supporting surface;
the sun gear shaft penetrates through the first supporting surface and penetrates out of the second supporting surface, and the sun gear is fixedly sleeved on the sun gear shaft and is arranged between the first supporting surface and the second supporting surface; the sun gear shaft is fixedly sleeved with a first bearing and a second bearing, and the first bearing and the second bearing are fixedly connected with the first supporting surface and the second supporting surface respectively;
the planet pinion is arranged between the first supporting surface and the second supporting surface and meshed with the sun gear, the planet pinion passes through the planet pinion shaft, a third bearing and a fourth bearing are fixedly sleeved on the planet pinion shaft, two ends of the planet pinion shaft respectively pass through the first supporting surface and the second supporting surface, and the third bearing and the fourth bearing are respectively fixedly connected with the first supporting surface and the second supporting surface;
the second supporting surface is far away from the first supporting surface, an output part is fixedly connected to the second supporting surface, an output shaft hole is formed in the output part, an output shaft is fixedly connected in the output shaft hole, and the output shaft and a sun gear shaft are coaxially arranged;
the outer edge surface is provided with avoidance grooves which are matched with the number of the planet pinions, the outer peripheral surfaces of the planet pinions penetrate out of the avoidance grooves and are meshed with the outer fixed inner gear ring, the outer fixed inner gear ring is fixedly connected with the first shell, the first shell is fixedly connected with a connecting plate, the connecting plate is fixedly provided with a fifth bearing, and the fifth bearing and the output shaft are coaxially arranged and sleeved outside the output part;
the output shaft is penetrated out of the first shell, and the sun gear shaft is penetrated out of the second shell.
2. The device for supporting a planetary gear according to claim 1, wherein the first supporting surface and the second supporting surface are both circular and symmetrically arranged, the sun gear shaft passes through the axis of the first supporting surface, the planetary pinions are arranged in four and uniformly distributed on the outer side of the sun gear, the cross section of the output part is circular, the output shaft and the output part are coaxially arranged, and the fifth bearing sleeve is arranged on the outer side of the output part.
3. The planet gear support device of claim 2, wherein the output shaft aperture has a bottom surface that isolates the output shaft from the sun gear shaft; the output part is integrally formed with the second supporting surface, the isolation surface is formed outside the output part, the isolation surface is used for isolating the connecting plate and the second supporting surface, a plurality of supporting balls are uniformly distributed on the side surface of the isolation surface, which faces the connecting plate, of the isolation surface, and the side surface of the connecting plate, which faces the isolation surface, of the isolation surface is contacted with the supporting balls.
4. The planetary gear support device according to claim 2, wherein the outer edge is cylindrical, the escape groove is arc-shaped, and the chord length of the escape groove in arc shape is larger than the diameter of the planetary pinion and larger than the diameter of the sun gear.
5. The planetary gear supporting device according to claim 1, wherein a connecting circular surface is fixedly connected to a side surface of the outer fixed ring gear, which faces the second supporting surface, the first casing and the second casing are both in a cylindrical groove shape with an opening, the opening position of the first casing is detachably fixedly connected to the connecting circular surface, the inner bottom surface of the first casing faces the second supporting surface and is fixedly connected to the connecting plate, and the inner bottom surface of the second casing faces the first supporting surface and is detachably fixedly connected to the first casing.
6. The planetary gear support device according to claim 5, wherein a sixth bearing and a seventh bearing are further sleeved on the sun gear shaft and the output shaft, respectively, and the sixth bearing and the seventh bearing are mounted with the second housing and the first housing, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321487692.8U CN220016040U (en) | 2023-06-12 | 2023-06-12 | Supporting device for planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321487692.8U CN220016040U (en) | 2023-06-12 | 2023-06-12 | Supporting device for planetary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220016040U true CN220016040U (en) | 2023-11-14 |
Family
ID=88686675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321487692.8U Active CN220016040U (en) | 2023-06-12 | 2023-06-12 | Supporting device for planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220016040U (en) |
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2023
- 2023-06-12 CN CN202321487692.8U patent/CN220016040U/en active Active
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