CN217898742U - Semi-enclosed planet carrier and planetary gear speed reducing mechanism with same - Google Patents
Semi-enclosed planet carrier and planetary gear speed reducing mechanism with same Download PDFInfo
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- CN217898742U CN217898742U CN202222206815.8U CN202222206815U CN217898742U CN 217898742 U CN217898742 U CN 217898742U CN 202222206815 U CN202222206815 U CN 202222206815U CN 217898742 U CN217898742 U CN 217898742U
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Abstract
The utility model discloses a semi-enclosed planet carrier and a planetary gear speed reducing mechanism with the planet carrier, the semi-enclosed planet carrier comprises a planet carrier enclosure body with an opening at one end, a planet carrier body extends to the opening in the bottom of the planet carrier enclosure body, and a plurality of planet carrier mounting through holes for mounting the planet carrier are arranged on the flange surface extending outwards from the opening end of the planet carrier enclosure body; the middle part of the planet carrier body is provided with a central through hole which penetrates through the planet carrier body and the planet carrier surrounding body; the bottom of the planet carrier body is also provided with a plurality of planet gear shaft mounting through holes which penetrate through the planet carrier body and the planet carrier enclosure body, and the planet gear shaft mounting through holes are uniformly and annularly distributed on the outer circumference of the central through hole. The utility model discloses a half enclose formula planet carrier has that the part is few, the installation is succinct, the packaging efficiency is high and structure size advantage such as little, and this planet carrier has reduced the fault point, and the quality is reliable.
Description
Technical Field
The utility model relates to a planetary gear drive technical field especially relates to half enclose formula planet carrier and have planetary gear reduction mechanism of this planet carrier.
Background
The planet carrier is an important part in a planetary gear speed reducing mechanism and is mainly used for installation and limiting of a planetary gear. The existing planet carrier structure is mainly open, the end face of one side of the planet carrier is designed into a disc shape, and 1 or 2 bolt holes are designed on the disc-shaped structure and used for fixedly connecting the planet carrier with a hub and the end cover, so that power is transmitted from a sun gear to a planet gear, then transmitted to the planet carrier and then transmitted to a wheel on the hub. And a sealing element is arranged between the planet carrier and the end cover, the end cover is fastened on the planet carrier by a bolt, and the joint surface is pressed to realize the sealing of the speed reducing mechanism.
For the existing planet carrier structure, the following defects exist:
(1) The number of bolts is large, the material management cost is high, and the processing and assembling efficiency is low;
(2) Planet carrier and wheel hub connecting bolt are fixed, need increase wheel hub and planet carrier relevant position's profile, wall thickness size, and then can lead to rim connecting bolt to distribute the circle size increase, transaxle overall dimension increase, rim size increase, are unfavorable for whole car to be arranged.
Therefore, it is desirable to develop a new planet carrier structure to overcome the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a semi-enclosed planet carrier and have planetary gear reduction gears of this planet carrier, have that the part is few, the installation is succinct, the packaging efficiency is high and structure size advantage such as little, and this planet carrier has reduced the fault point, the quality is reliable.
According to the utility model provides a semi-enclosed planet carrier, enclose the body including one end open-ended planet carrier, the planet carrier encloses the internal side direction opening part extension in body bottom and has the planet carrier body, the planet carrier encloses the flange face of the external extension of body open end and opens and to have a plurality of planet carrier mounting through holes that are used for installing this planet carrier.
Preferably, the middle part of the planet carrier body is provided with a central through hole, and the central through hole penetrates through the planet carrier body and the planet carrier enclosing body.
Preferably, a plurality of planet gear shaft mounting through holes are further formed in the bottom of the planet carrier body, the planet gear shaft mounting through holes penetrate through the planet carrier body and the planet carrier enclosing body, and the planet gear shaft mounting through holes are uniformly and annularly distributed on the outer circumference of the central through hole.
Preferably, an annular sealing groove is formed in one side, away from the planet carrier body, of the flange surface extending outwards from the opening end of the planet carrier enclosure body.
According to the utility model provides a planetary gear reduction gears contains the aforesaid semi-enclosed planet carrier.
Preferably, the planet carrier further comprises a planet gear, a hub, an end cover and a sun gear, wherein the opening of the planet carrier is fixedly connected with the hub through a rim bolt, the planet gear is sleeved on a planet gear shaft on the outer side of the planet carrier body inside the planet carrier, one end of the sun gear is inserted into a central through hole formed in the middle of the planet carrier body, and the end cover is fixedly connected with the outer side of the bottom of the planet carrier through a fastening bolt.
Preferably, a sealing element is further arranged on one side of the end cover close to the planet carrier.
The utility model provides a beneficial effect is:
the utility model designs the planet carrier into a semi-surrounding structure, which can be fastened on the wheel hub by sharing the rim bolt, thereby saving a set of bolts; the wall thickness of the planet carrier can be reduced, so that the weight is reduced, and more space is provided for rim installation; the number of required bolts is small, so that the assembly efficiency is improved; meanwhile, the hidden danger of oil leakage at one position is eliminated.
Drawings
Fig. 1 is a schematic view of an assembled state of a planetary gear reduction mechanism with a semi-enclosed planet carrier according to the present invention;
fig. 2 is a schematic structural diagram of a semi-enclosed planet carrier according to the present invention;
fig. 3 is a cross-sectional view of a semi-enclosed planet carrier according to the present invention;
fig. 4 is an axonometric view of the semi-enclosed planet carrier provided by the utility model.
In the figure: 1-planet carrier, 101-planet carrier enclosure, 102-planet carrier mounting through hole, 103-sealing groove, 104-planet carrier body, 105-central through hole, 106-planet gear shaft mounting through hole, 2-planet gear, 3-rim bolt, 4-wheel hub, 5-fastening bolt, 6-end cover, 7-sun gear and 8-sealing element.
Detailed Description
Example 1
Referring to fig. 3 and 4, the utility model provides a semi-enclosed planet carrier includes that one end open-ended planet carrier encloses body 101, and the planet carrier encloses the interior side direction opening part of body 101 bottom and extends and have planet carrier body 104, and the planet carrier encloses the flange face of the outside extension of body 101 open end and opens and have a plurality of planet carrier mounting through holes 102 that are used for installing this planet carrier.
The middle part of the planet carrier body 104 is provided with a central through hole 105, and the central through hole 105 penetrates through the planet carrier body 104 and the planet carrier surrounding body 101.
The bottom of the planet carrier body 104 is further provided with a plurality of planet gear shaft mounting through holes 106, the planet carrier body 104 and the planet carrier enclosure body 101 are penetrated by the planet gear shaft mounting through holes 106, and the planet gear shaft mounting through holes 106 are uniformly and annularly distributed on the outer circumference of the central through hole 105.
In order to improve the sealing performance of the connection between the planet carrier enclosure 101 and the hub 4, an annular sealing groove 103 is formed on one side of the outwardly extending flange surface of the opening end of the planet carrier enclosure 101, which is far away from the planet carrier body 104.
Example 2
Referring to fig. 1, 2, and 3, the present invention provides a planetary gear reduction mechanism including a semi-enclosed planetary carrier according to embodiment 1.
In addition, the planetary gear speed reducing mechanism also comprises conventional components, such as a planetary gear 2, a hub 4, an end cover 6 and a sun gear 7, wherein an opening of the planetary carrier 1 is fixedly connected with the hub 4 through a rim bolt 3, the planetary gear 2 is sleeved on an outer planetary gear shaft of a planetary carrier body 104 inside the planetary carrier 1, one end of the sun gear 7 is inserted into a central through hole 105 formed in the middle of the planetary carrier body 104, and the end cover 6 is fixedly connected with the outer side of the bottom of the planetary carrier 1 through a fastening bolt 5. The central through hole 105 corresponds to the center of the end cover 6, so that the sun gear 7 can be axially contacted and limited in the operation process and can be automatically adjusted to be in an accurate position.
In order to avoid the problem of oil leakage at the end cover, a sealing member 8 is further arranged at one side of the end cover 6 close to the planet carrier 1.
As for the conventional components of the planetary gear speed reducing mechanism, such as the planetary gear 2, the hub 4, the end cover 6, the sun gear 7, etc., except for the installation scheme described in the present invention, the existing installation method can be adopted for the rest.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the present invention.
Claims (7)
1. Semi-enclosed planet carrier, its characterized in that: the planet carrier enclosure comprises a planet carrier enclosure body (101) with an opening at one end, a planet carrier body (104) is extended from the lateral opening in the bottom of the planet carrier enclosure body (101), and a plurality of planet carrier installation through holes (102) for installing the planet carrier are formed in a flange surface of the planet carrier enclosure body (101) with the opening end extending outwards.
2. The semi-enclosed planet carrier of claim 1, wherein: the middle part of the planet carrier body (104) is provided with a central through hole (105), and the central through hole (105) penetrates through the planet carrier body (104) and the planet carrier enclosing body (101).
3. The semi-enclosed planet carrier of claim 2, wherein: a plurality of planet gear shaft mounting through holes (106) are further formed in the bottom of the planet carrier body (104), the planet gear shaft mounting through holes (106) penetrate through the planet carrier body (104) and the planet carrier enclosing body (101), and the planet gear shaft mounting through holes (106) are evenly distributed on the outer circumference of the central through hole (105) in an annular mode.
4. The semi-enclosed planet carrier of claim 1, wherein: an annular sealing groove (103) is formed in one side, away from the planet carrier body (104), of the flange surface, extending outwards, of the opening end of the planet carrier surrounding body (101).
5. A planetary gear reduction comprising a semi-enclosed planet carrier according to any one of claims 1 to 4.
6. A planetary gear speed reducing mechanism according to claim 5, further comprising a planetary gear (2), a hub (4), an end cover (6) and a sun gear (7), wherein an opening of the planetary carrier (1) is fixedly connected with the hub (4) through a rim bolt (3), the planetary gear (2) is sleeved on an outer side planetary gear shaft of the planetary carrier body (104) inside the planetary carrier (1), one end of the sun gear (7) is inserted into a central through hole (105) formed in the middle of the planetary carrier body (104), and the end cover (6) is fixedly connected with the outer side of the bottom of the planetary carrier (1) through a fastening bolt (5).
7. A planetary gear reduction according to claim 6, characterized in that the side of the end cover (6) close to the planet carrier (1) is also provided with a seal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222206815.8U CN217898742U (en) | 2022-08-22 | 2022-08-22 | Semi-enclosed planet carrier and planetary gear speed reducing mechanism with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222206815.8U CN217898742U (en) | 2022-08-22 | 2022-08-22 | Semi-enclosed planet carrier and planetary gear speed reducing mechanism with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217898742U true CN217898742U (en) | 2022-11-25 |
Family
ID=84142778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222206815.8U Active CN217898742U (en) | 2022-08-22 | 2022-08-22 | Semi-enclosed planet carrier and planetary gear speed reducing mechanism with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217898742U (en) |
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2022
- 2022-08-22 CN CN202222206815.8U patent/CN217898742U/en active Active
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