CN211449531U - Planetary gear transmission mechanism for gearbox of wind driven generator - Google Patents
Planetary gear transmission mechanism for gearbox of wind driven generator Download PDFInfo
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- CN211449531U CN211449531U CN201922467329.XU CN201922467329U CN211449531U CN 211449531 U CN211449531 U CN 211449531U CN 201922467329 U CN201922467329 U CN 201922467329U CN 211449531 U CN211449531 U CN 211449531U
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Abstract
The utility model discloses a planetary gear drive mechanism for aerogenerator gear box, include: the device comprises a hollow accommodating barrel, a driving mechanism and a driving mechanism, wherein the accommodating barrel is fixedly arranged and is open at two ends; the outer periphery of the left gear ring is attached and fixedly connected with the inner periphery of the containing cylinder; the outer periphery of the right gear ring is attached and fixedly connected with the inner periphery of the containing cylinder; and a left gear carrier and a right gear carrier respectively arranged in the left gear ring and the right gear ring. According to the utility model discloses, it still can guarantee stable transmission operation after long-time work through setting up the high-speed shaft that two-stage planetary gear transmission structure guaranteed the aerogenerator gear box, has greatly improved the transmission stability of gear box, has prolonged the maintenance interval of gear box.
Description
Technical Field
The utility model relates to a aerogenerator gear box field, in particular to planetary gear drive mechanism for aerogenerator gear box.
Background
In the field of wind turbine gearboxes, it is known to use transmission mechanisms of different construction to achieve variable speed transmission of the rotational torque. In the variable speed transmission process of research and realization turning moment, utility model people find that the drive mechanism among the prior art has following problem at least:
because the high-speed shaft of the wind driven generator gearbox has high rotating speed during working, the problems of abnormal sound and even gear jamming caused by insufficient lubrication of the gearbox after long-time working are easy to occur.
In view of the above, it is necessary to develop a planetary gear transmission mechanism for a wind turbine gearbox to solve the above problems.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists among the prior art, the utility model discloses a main objective provides a planetary gear drive mechanism for aerogenerator gear box, and it still can guarantee stable transmission operation after long-time work through setting up two-stage planetary gear transmission structure and guaranteeing the high-speed shaft of aerogenerator gear box, has greatly improved the transmission stability of gear box, has prolonged the maintenance interval of gear box.
In order to achieve the above objects and other advantages in accordance with the present invention, there is provided a planetary gear transmission for a wind turbine gearbox, comprising:
the device comprises a hollow accommodating barrel, a driving mechanism and a driving mechanism, wherein the accommodating barrel is fixedly arranged and is open at two ends;
the outer periphery of the left gear ring is attached and fixedly connected with the inner periphery of the containing cylinder;
the outer periphery of the right gear ring is attached and fixedly connected with the inner periphery of the containing cylinder; and
the left gear rack and the right gear rack are respectively arranged in the left gear ring and the right gear ring;
the left gear rack and the right gear rack are respectively coaxially arranged with the left gear ring and the right gear ring, the centers of the left gear rack and the right gear rack are respectively connected with a first transmission shaft and a sun gear in a rotating mode, the left gear rack is internally connected with at least three left planetary gears between the left gear ring and the first transmission shaft in a rotating mode, and the right gear rack is internally connected with at least three right planetary gears between the right gear ring and the sun gear in a rotating mode.
Optionally, the left planetary gear is respectively engaged with the inner periphery of the left gear ring and the outer periphery of the first transmission shaft.
Optionally, the right planetary gear is respectively engaged with the inner periphery of the right gear ring and the outer periphery of the sun gear.
Optionally, a transmission through hole coaxial with the accommodating cylinder is formed in the partition plate, and a left guide shaft sleeve and a right guide shaft sleeve extending into the transmission through hole are integrally formed on end surfaces of the left gear carrier and the right gear carrier opposite to the transmission through hole respectively.
Optionally, a sun gear transmission shaft penetrating through the right guide shaft sleeve and extending into the left guide shaft sleeve is integrally formed on the end surface of the sun gear opposite to the right guide shaft sleeve.
Optionally, the sun gear transmission shaft is clamped with the left guide shaft sleeve, so that the sun gear and the left gear carrier can synchronously and coaxially rotate.
Optionally, a left bearing and a right bearing respectively sleeved on the left guide shaft sleeve and the right guide shaft sleeve are arranged in the transmission through hole, so that the left guide shaft sleeve and the right guide shaft sleeve can smoothly and stably rotate in the transmission through hole under the support of the left bearing and the right bearing.
Optionally, a second transmission shaft extending to the outside of the accommodating cylinder is fixedly connected to an end of the right gear frame, and the first transmission shaft, the sun gear and the second transmission shaft are coaxially arranged with respect to the accommodating cylinder.
One of the above technical solutions has the following advantages or beneficial effects: the high-speed shaft of the gearbox of the wind driven generator can still ensure stable transmission operation after long-time work by arranging the two-stage planetary gear transmission structure, so that the transmission stability of the gearbox is greatly improved, and the maintenance interval of the gearbox is prolonged.
Drawings
Fig. 1 is an axial cross-sectional view of a planetary gear transmission for a wind turbine gearbox according to an embodiment of the present invention;
fig. 2 is an axial cross-sectional view of a receiving cylinder in a planetary gear train for a wind turbine gearbox according to an embodiment of the present invention;
fig. 3 is an axial cross-sectional view of a planetary gear mechanism for a wind turbine gearbox according to an embodiment of the present invention with a receiving cylinder hidden therein.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.
In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.
Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
According to an embodiment of the present invention, with reference to the illustrations of fig. 1 and 2, it can be seen that the planetary gear transmission mechanism for the wind turbine gearbox includes:
a hollow accommodating cylinder 11 fixedly arranged and opened at both ends, wherein a partition plate 111 is arranged in the accommodating cylinder 11 to divide the inner space of the accommodating cylinder 11 into a left transmission chamber 112 and a right transmission chamber 113 in sequence along the axial direction;
a left gear ring 15 arranged in the left transmission chamber 112, the outer periphery of which is jointed and fixedly connected with the inner periphery of the containing cylinder 11;
the outer periphery of the right gear ring 16 arranged in the right transmission chamber 113 is jointed and fixedly connected with the inner periphery of the containing cylinder 11; and
a left carrier 121 and a right carrier 131 provided in the left ring gear 15 and the right ring gear 16, respectively;
the left gear carrier 121 and the right gear carrier 131 are respectively arranged coaxially with the left gear ring 15 and the right gear ring 16, the centers of the left gear carrier 121 and the right gear carrier 131 are respectively connected with the first transmission shaft 12 and the sun gear 14 in a rotating manner, the left gear carrier 121 is connected with at least three left planetary gears 122 between the left gear ring 15 and the first transmission shaft 12 in a rotating manner, and the right gear carrier 131 is connected with at least three right planetary gears 132 between the right gear ring 16 and the sun gear 14 in a rotating manner.
Further, the left planetary gears 122 are respectively engaged with the inner periphery of the left ring gear 15 and the outer periphery of the first transmission shaft 12.
Further, the right planetary gears 132 mesh with the inner periphery of the right ring gear 16 and the outer periphery of the sun gear 14, respectively.
Referring to fig. 3, a driving through hole 114 is formed in the partition 111 to be coaxial with the accommodating tube 11, and a left guide sleeve 1211 and a right guide sleeve 1311 extending into the driving through hole 114 are integrally formed on end surfaces of the left gear carrier 121 and the right gear carrier 131 opposite to the driving through hole 114, respectively.
Referring to fig. 1, a sun gear transmission shaft 141 is integrally formed on an end surface of the sun gear 14 opposite to the right guide sleeve 1311, and extends through the right guide sleeve 1311 into the left guide sleeve 1211.
Referring to fig. 1 and 2 again, the sun gear shaft 141 is engaged with the left guide sleeve 1211, so that the sun gear 14 and the left gear frame 121 can rotate synchronously and coaxially.
Further, a left bearing 1141 and a right bearing 1142 respectively sleeved on the left guide sleeve 1211 and the right guide sleeve 1311 are disposed in the transmission through hole 114, so that the left guide sleeve 1211 and the right guide sleeve 1311 can smoothly and stably rotate in the transmission through hole 114 under the support of the left bearing 1141 and the right bearing 1142.
Further, a second transmission shaft 13 extending to the outside of the accommodating tube 11 is fixed to an end of the right gear carrier 131, and the first transmission shaft 12, the sun gear 14, and the second transmission shaft 13 are coaxially disposed with respect to the accommodating tube 11.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (8)
1. A planetary gear transmission for a wind turbine gearbox, comprising:
the device comprises a hollow accommodating cylinder (11), a driving mechanism and a driving mechanism, wherein the accommodating cylinder (11) is fixedly arranged and is opened at two ends, and a partition plate (111) is arranged in the accommodating cylinder (11) to divide the inner space of the accommodating cylinder (11) into a left transmission chamber (112) and a right transmission chamber (113) in sequence along the axial direction;
the outer periphery of the left gear ring (15) arranged in the left transmission chamber (112) is jointed and fixedly connected with the inner periphery of the containing cylinder (11);
the outer periphery of a right gear ring (16) arranged in the right transmission chamber (113) is jointed and fixedly connected with the inner periphery of the containing cylinder (11); and
a left gear rack (121) and a right gear rack (131) respectively arranged in the left gear ring (15) and the right gear ring (16);
the left gear carrier (121) and the right gear carrier (131) are coaxially arranged with the left gear ring (15) and the right gear ring (16) respectively, the centers of the left gear carrier (121) and the right gear carrier (131) are respectively connected with a first transmission shaft (12) and a sun gear (14) in a rotating mode, at least three left planetary gears (122) located between the left gear ring (15) and the first transmission shaft (12) are connected in the left gear carrier (121) in a rotating mode, and at least three right planetary gears (132) located between the right gear ring (16) and the sun gear (14) are connected in the right gear carrier (131) in a rotating mode.
2. A planetary gear transmission for a wind turbine gearbox according to claim 1, characterised in that the left planet wheel (122) meshes with the inner periphery of the left ring gear (15) and the outer periphery of the first transmission shaft (12), respectively.
3. A planetary gear transmission for a wind turbine gearbox according to claim 1, characterised in that the right planet wheel (132) meshes with the inner periphery of the right ring gear (16) and the outer periphery of the sun wheel (14), respectively.
4. The planetary gear transmission mechanism for the wind turbine gearbox according to claim 1, wherein a transmission through hole (114) coaxially disposed with the accommodating cylinder (11) is opened in the partition plate (111), and a left guide sleeve (1211) and a right guide sleeve (1311) extending into the transmission through hole (114) are integrally formed on end surfaces of the left gear carrier (121) and the right gear carrier (131) opposite to the transmission through hole (114), respectively.
5. An epicyclic gearing mechanism for a wind turbine gearbox according to claim 4, wherein a sun gear drive shaft (141) passing through said right guide sleeve (1311) and extending into said left guide sleeve (1211) is integrally formed on the end face of said sun gear (14) opposite to said right guide sleeve (1311).
6. An epicyclic gear train for a wind turbine gearbox according to claim 5, wherein said sun gear shaft (141) is engaged with said left guide sleeve (1211) so that said sun gear (14) and said left gear carrier (121) can rotate synchronously and coaxially.
7. The planetary gear transmission mechanism for the wind turbine gearbox according to claim 4, wherein the transmission through hole (114) is provided therein with a left bearing (1141) and a right bearing (1142) respectively sleeved on the left guide sleeve (1211) and the right guide sleeve (1311).
8. The planetary gear transmission mechanism for the wind turbine gearbox according to claim 1, wherein a second transmission shaft (13) extending to the outside of the accommodating cylinder (11) is fixed to an end of the right gear carrier (131), and the first transmission shaft (12), the sun gear (14) and the second transmission shaft (13) are coaxially arranged with respect to the accommodating cylinder (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922467329.XU CN211449531U (en) | 2019-12-31 | 2019-12-31 | Planetary gear transmission mechanism for gearbox of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922467329.XU CN211449531U (en) | 2019-12-31 | 2019-12-31 | Planetary gear transmission mechanism for gearbox of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211449531U true CN211449531U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922467329.XU Active CN211449531U (en) | 2019-12-31 | 2019-12-31 | Planetary gear transmission mechanism for gearbox of wind driven generator |
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| Country | Link |
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| CN (1) | CN211449531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065667A (en) * | 2020-09-21 | 2020-12-11 | 华北理工大学 | Transmission structure for wind driven generator |
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2019
- 2019-12-31 CN CN201922467329.XU patent/CN211449531U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065667A (en) * | 2020-09-21 | 2020-12-11 | 华北理工大学 | Transmission structure for wind driven generator |
| CN112065667B (en) * | 2020-09-21 | 2021-10-19 | 华北理工大学 | Transmission structure for wind driven generator |
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