CN212480090U - Planet carrier and planetary gear box - Google Patents
Planet carrier and planetary gear box Download PDFInfo
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- CN212480090U CN212480090U CN202021686380.6U CN202021686380U CN212480090U CN 212480090 U CN212480090 U CN 212480090U CN 202021686380 U CN202021686380 U CN 202021686380U CN 212480090 U CN212480090 U CN 212480090U
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Abstract
The utility model relates to a planetary gear technical field discloses a planet carrier and planetary gear case, and wherein the planet carrier includes: a first web; the second web is arranged opposite to the first web at intervals, a first bearing seat and a groove are arranged on the side face, far away from the first web, of the second web, the groove is arranged on the radial outer side of the first bearing seat and used for being inserted into and disassembled from a tool, and when a first bearing is installed on the first bearing seat, the outer peripheral face of the first bearing is arranged between the radial inner edge and the radial outer edge of the groove; the upright columns are arranged at intervals, and two ends of each upright column are connected to the first web and the second web respectively; and the shaft neck is connected to the side face, far away from the second web, of the first web and is rotatably connected to the box body of the gear box. Through the structure, the planet carrier is compact in structure and small in axial size.
Description
Technical Field
The utility model relates to a planetary gear technical field especially relates to a planet carrier and planetary gear case.
Background
In a wind generating set, because the rotating speed of a wind wheel is very low and can not reach the rotating speed required by the power generation of a generator, the generator needs to obtain the corresponding rotating speed through the speed increase of a planetary gear box, and the planetary gear box plays an important role in wind power equipment as an important core component.
The planet carrier is one of the main force transmission components in the planetary gear, and the axial size of the planet carrier also influences the axial size of the whole planetary gear box. The planet carrier is rotatably connected to the gear box through a bearing, and in order to facilitate the removal and replacement of the bearing, as shown in fig. 1, a step 101 is generally arranged on a web 100 of the planet carrier, and an axial end surface of the bearing abuts against the step surface and is arranged at a distance from the web 100 of the planet carrier, so that a removal tool can be installed in a gap between the web 100 and the bearing to remove the bearing. Because the step 101 is arranged on the planet carrier web 100, the axial dimension of the planet carrier is large, which is not beneficial to the compact design and the light weight design of the planet carrier structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a planet carrier, this planet carrier compact structure, axial dimension is less.
To achieve the purpose, the utility model adopts the following technical proposal:
a planet carrier, comprising: a first web; the second web plate and the first web plate are arranged oppositely at intervals, a first bearing seat and a groove are arranged on the side face, far away from the first web plate, of the second web plate, the groove is arranged on the radial outer side of the first bearing seat and used for inserting and disassembling a tool, and when a first bearing is installed on the first bearing seat, the outer peripheral face of the first bearing is arranged between the radial inner edge and the radial outer edge of the groove; the upright columns are arranged at intervals, and two ends of each upright column are connected to the first web and the second web respectively; and the journal is connected to the side face, far away from the second web, of the first web and is rotationally connected to a box body of the gearbox.
As a preferable mode of the planetary carrier, an axial positioning table is formed between the groove and the first bearing seat, and when the first bearing is mounted on the first bearing seat, an inner ring of the first bearing abuts against the axial positioning table.
As a preferable scheme of the planet carrier, the groove is an annular groove, a central axis of the annular groove coincides with a central axis of the first bearing seat, an outer diameter of the annular groove is larger than an outer diameter of the first bearing, and an inner diameter of the annular groove is smaller than the outer diameter of the first bearing.
As a preferable mode of the planet carrier, the plurality of grooves are provided, and the plurality of grooves are distributed at equal intervals along the circumferential direction of the central axis of the first bearing seat.
As a preferable scheme of the planet carrier, the groove is one or at least two of a circular groove, an elliptical groove, a polygonal groove and an irregular groove.
As a preferable scheme of the planet carrier, a second bearing seat is arranged on the shaft journal, and the second bearing seat is rotationally connected to the box body through a second bearing.
As a preferable scheme of the planet carrier, a first chamfer angle is arranged at the joint of the first web and the stand column, and a second chamfer angle is arranged at the joint of the second web and the stand column.
As a preferred scheme of the planet carrier, a first pin shaft hole is formed in the first web, a second pin shaft hole is formed in the second web, the second pin shaft holes and the first pin shaft holes are arranged in a one-to-one opposite mode, one end of the planetary gear shaft is installed in the first pin shaft hole, and the other end of the planetary gear shaft is installed in the second pin shaft hole.
As a preferable mode of the carrier, a main shaft connection port is provided in the journal.
Another object of the utility model is to provide a planetary gear box, this planetary gear box's axial dimension is less, and the volume is less.
To achieve the purpose, the utility model adopts the following technical proposal:
a planetary gearbox comprises the planet carrier in any technical scheme.
The utility model has the advantages that:
the utility model provides a planet carrier, which comprises a first web, a second web, a plurality of columns and a shaft neck, wherein the second web is arranged at a relative interval with the first web, the plurality of columns are arranged at intervals, both ends of the columns are respectively connected with the first web and the second web, the shaft neck is connected with the side surface of the first web far away from the second web and is rotationally connected with a box body of a gear box, the side surface of the second web far away from the first web is provided with a first bearing seat and a groove, the groove is arranged at the radial outer side of the first bearing seat and is used for inserting a disassembling tool, when the first bearing is arranged on the first bearing seat, the outer peripheral surface of the first bearing is arranged between the radial inner edge and the radial outer edge of the groove, and a gap (namely a groove part) is arranged between the first bearing and the second web, so that the disassembling tool can act on the side surface of the first bearing close to the second web when the disassembling tool is inserted into the groove, thereby achieving convenient disassembly of the first bearing. Through the structure, on the basis of ensuring the convenient disassembly of the first bearing, the step additionally arranged on the amplitude plate in the prior art is avoided, the axial size of the planet carrier is reduced, and the planet carrier structure is more compact.
The utility model also provides a planetary gear box, this planetary gear box is owing to the planet carrier that provides including above-mentioned technical scheme, and its axial dimension is less, and the volume is less.
Drawings
FIG. 1 is a cross-sectional view of a prior art planet carrier;
fig. 2 is a cross-sectional view of a planet carrier according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a planetary carrier according to an embodiment of the present invention.
In fig. 1:
100. a web; 101. a step;
in fig. 2-3:
1. a first web; 11. a first chamfer; 12. a first pin shaft hole; 2. a second web; 21. a first bearing housing; 22. a groove; 23. an axial positioning table; 24. a second chamfer; 25. a second pin shaft hole; 3. a column; 4. a journal; 41. a second bearing housing; 42. a main shaft connecting port.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the specific embodiments with reference to the drawings.
The present embodiment provides a planet carrier, as shown in fig. 2 and fig. 3, the planet carrier includes a first web 1, a second web 2, a column 3 and a journal 4, the second web 2 is disposed opposite to the first web 1 at an interval, two ends of the column 3 are respectively connected to the first web 1 and the second web 2, the journal 4 is connected to a side of the first web 1 far away from the second web 2 and is rotatably connected to a box body of a gear box through a second bearing, a side of the second web 2 far away from the first web 1 is provided with a first bearing seat 21, and the first bearing seat 21 is rotatably connected to the box body of the gear box through the first bearing.
In this embodiment, a groove 22 is further provided on a side of the second web 2 away from the first web 1, the groove 22 is used for removing material on the second web 2, the groove 22 is used for inserting a dismounting tool, and the groove 22 is provided on a radial outer side of the first bearing seat 21, so that when the first bearing is mounted on the first bearing seat 21, a gap (i.e. a portion of the groove 22) exists between the first bearing and the second web 2. When the first bearing is mounted on the first bearing seat 21, the outer peripheral surface of the first bearing is arranged between the radial inner edge and the radial outer edge of the groove 22, so that when the disassembling tool is inserted into the groove 22, the disassembling tool can act on the side surface, close to the second web 2, of the first bearing, and therefore the first bearing is convenient to disassemble. Through the structure, the planet carrier avoids the step being additionally arranged on the second amplitude plate 2 on the basis of ensuring the convenient disassembly of the first bearing, so that the axial size of the planet carrier is reduced, and the structure of the planet carrier is more compact.
Preferably, an axial positioning table 23 is formed between the groove 22 and the first bearing seat 21, when the first bearing is mounted on the first bearing seat 21, an inner ring of the first bearing can abut against the axial positioning table 23, so that not only is the axial positioning of the first bearing facilitated, but also the first bearing is facilitated to abut against the second web 2 tightly during assembly, and the volume occupied by the planetary gearbox is facilitated to be reduced.
In this embodiment, a plurality of columns 3 are provided, the columns 3 are arranged at intervals, and both ends of the columns 3 are respectively connected to the first web 1 and the second web 2, so that the first web 1 and the second web 2 are connected into a whole. More preferably, the first web 1, the second web 2, the column 3 and the journal 4 are of an integrally formed structure, that is, the first web 1, the second web 2, the column 3 and the journal 4 are manufactured by an integrally forming processing method, so that the overall structural strength of the planet carrier is high, and the transmission of the planet carrier is facilitated.
Preferably, the groove 22 is provided as an annular groove, the central axis of the annular groove coincides with the central axis of the first bearing seat 21, the outer diameter of the annular groove is larger than the outer diameter of the first bearing, and the inner diameter of the annular groove is smaller than the outer diameter of the first bearing, so that when the dismounting tool is inserted into the annular groove, the dismounting tool can act on the side surface of the first bearing close to the second web 2, and the dismounting of the first bearing is facilitated.
In this embodiment, the grooves 22 may also be provided as a plurality of separately distributed grooves 22, the plurality of grooves 22 are uniformly distributed at equal intervals along the circumferential direction of the central axis of the first bearing seat 21, and the tool for facilitating the disassembly can be inserted into the grooves 22 at different positions in the circumferential direction of the central axis of the bearing seat to disassemble the first bearing. Specifically, the groove 22 may be one or at least two of a circular groove, an elliptical groove, a polygonal groove and an irregular groove, as long as the requirement that the disassembling tool can be disassembled is met, and a person skilled in the art can design the specific shape of the groove 22 according to actual conditions.
Preferably, the journal 4 is provided with a second bearing seat 41, the second bearing seat 41 is sleeved on the second bearing seat 41, and the second bearing seat 41 is rotatably connected to the box body through the second bearing, so that the journal 4 can rotate smoothly relative to the box body.
In this embodiment, the outside of the junction of first web 1 and stand 3 is equipped with first chamfer 11, and the outside of the junction of second web 2 and stand 3 is equipped with second chamfer 24, can alleviate the appearance of sharp edges and corners on the lateral surface of this planet carrier, is favorable to avoiding causing the fish tail to operating personnel when the dismouting, is favorable to improving the safety in utilization of this planet carrier.
Preferably, a first pin shaft hole 12 is formed in the first amplitude plate 1, a second pin shaft hole 25 is formed in the second amplitude plate 2, the second pin shaft hole 25 and the first pin shaft hole 12 are arranged in a one-to-one opposite mode, one end of the planetary gear shaft is installed in the first pin shaft hole 12, and the other end of the planetary gear shaft is installed in the second pin shaft hole 25, so that the planetary gear shaft can be conveniently installed on the planet carrier.
In the present embodiment, the journal 4 is provided with a spindle connection port 42, and the spindle connection port 42 is used for connection with a spindle of an external member, thereby realizing power transmission between the carrier and the external member. Preferably, the spindle connection port 42 is a circular hole, and the central axis of the circular hole coincides with the central axis of the journal 4, which is beneficial to make the rotational inertia of the journal 4 uniformly distributed along the circumference of the central axis, so that the rotation of the planet carrier is stable.
The embodiment also provides an epicyclic gearbox which comprises the planet carrier provided by the technical scheme, and the epicyclic gearbox has smaller axial size and volume due to the planet carrier provided by the technical scheme.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A planet carrier, comprising:
a first web (1);
the second web (2) is arranged opposite to the first web (1) at intervals, a first bearing seat (21) and a groove (22) are arranged on the side face, far away from the first web (1), of the second web (2), the groove (22) is arranged on the radial outer side of the first bearing seat (21), the groove (22) is used for inserting and disassembling a tool, and when a first bearing is installed on the first bearing seat (21), the outer peripheral face of the first bearing is arranged between the radial inner edge and the radial outer edge of the groove (22);
the vertical columns (3) are arranged at intervals, and two ends of each vertical column (3) are connected to the first web (1) and the second web (2) respectively;
the shaft neck (4), the shaft neck (4) is connected to the side face, away from the second web (2), of the first web (1), and the shaft neck (4) is connected to a box body of the gearbox in a rotating mode.
2. Planet carrier according to claim 1, characterised in that an axial positioning table (23) is formed between the recess (22) and the first bearing seat (21), against which axial positioning table (23) the inner ring of the first bearing abuts when the first bearing is mounted on the first bearing seat (21).
3. Planet carrier according to claim 1, characterised in that the groove (22) is provided as an annular groove, the centre axis of which coincides with the centre axis of the first bearing seat (21), the outer diameter of which is larger than the outer diameter of the first bearing and the inner diameter of which is smaller than the outer diameter of the first bearing.
4. The planet carrier according to claim 1, wherein the grooves (22) are provided in a plurality, and the plurality of grooves (22) are equally spaced in the circumferential direction of the central axis of the first bearing seat (21).
5. The planet carrier according to claim 4, wherein the groove (22) is one of a circular groove, an elliptical groove, a polygonal groove and an irregular groove.
6. Planet carrier according to claim 1, characterised in that a second bearing block (41) is provided on the journal (4), which second bearing block (41) is rotatably connected to the housing by means of a second bearing.
7. Planet carrier according to claim 1, characterised in that the junction of the first web (1) with the upright (3) is provided with a first chamfer (11) and the junction of the second web (2) with the upright (3) is provided with a second chamfer (24).
8. The planet carrier of claim 1, wherein the first web (1) is provided with a first pin hole (12), the second web (2) is provided with a second pin hole (25), the second pin holes (25) and the first pin holes (12) are arranged in a one-to-one opposite mode, one end of a planet shaft is installed in the first pin hole (12), and the other end of the planet shaft is installed in the second pin hole (25).
9. Planet carrier according to claim 1, characterised in that a spindle connection opening (42) is provided in the journal (4).
10. An epicyclic gearbox comprising a planet carrier according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021686380.6U CN212480090U (en) | 2020-08-13 | 2020-08-13 | Planet carrier and planetary gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021686380.6U CN212480090U (en) | 2020-08-13 | 2020-08-13 | Planet carrier and planetary gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212480090U true CN212480090U (en) | 2021-02-05 |
Family
ID=74453388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021686380.6U Active CN212480090U (en) | 2020-08-13 | 2020-08-13 | Planet carrier and planetary gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212480090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853220A (en) * | 2020-08-13 | 2020-10-30 | 南京高速齿轮制造有限公司 | Planet carrier and planetary gear box |
| JP7458925B2 (en) | 2020-07-22 | 2024-04-01 | 株式会社エンプラス | Planetary gear carrier and planetary gear |
-
2020
- 2020-08-13 CN CN202021686380.6U patent/CN212480090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7458925B2 (en) | 2020-07-22 | 2024-04-01 | 株式会社エンプラス | Planetary gear carrier and planetary gear |
| CN111853220A (en) * | 2020-08-13 | 2020-10-30 | 南京高速齿轮制造有限公司 | Planet carrier and planetary gear box |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230207 Granted publication date: 20210205 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230327 Granted publication date: 20210205 |