Wind power planetary gear support device

Abstract

The present application relates to the technical fields of planetary gear production and transportation, in particular to a wind power planetary gear supporting device, which comprises a planetary gear, a sun gear and a gear ring, the outer surface of the planetary gear is engaged with the outer surface of the sun gear, and the inner surface of the gear ring is engaged with the outer surface of the planetary gear, characterized in that the gear ring is externally provided with a gear supporting base, the front end of the planetary gear is provided with a gear supporting cover, the inside of the gear supporting base is provided with a gear ring supporting clamping block, and the middle part of the gear supporting cover is provided with a planetary gear fixed supporting shaft, which has the beneficial effect that the planetary gear movable shaft seat capable of sliding adjustment is used to replace the bevel gear to fixedly support the planetary gear, the planetary gear movable shaft seats are collected through a central fixed disc, the problem that the planetary gear is hindered from rotating due to the use of the bevel gear without an outer ring to support the planetary gear is solved, and the planetary gear can be freely supported according to the position of the planetary gear.

Description

Technical Field

[0001] This invention relates to the field of planetary gear manufacturing and transportation technology, specifically a wind power planetary gear support device. Background Technology

[0002] A planetary gear system typically includes a planet carrier, planet shafts, planet gears, an internal ring gear, and a sun gear. The sun gear is located at the center of the internal ring gear, with an annular gap between the internal ring gear and the sun gear. The planet gears are situated within this gap, meshing inwards with the sun gear and outwards with the internal ring gear, and can perform circular motion within the gap. In wind turbines, planetary gears are installed inside the gearbox of a wind turbine generator. This allows the planetary gearbox to transmit maximum torque in a tight manner. The change in the rotational speed of the wind turbine blades during transmission increases the output shaft speed of the generator, improving power generation efficiency.

[0003] However, in the prior art, the support device for wind turbine planetary gears mostly uses full roller cylindrical bearings. Because they have no cage, there is a risk of roller slippage and damage. Moreover, the large size of such bearings limits the structural size of the planetary gears. In the prior art, a Chinese patent document with publication number CN201461269U and publication date of May 12, 2010, proposed a method to support the planetary gears by using two back-to-back bevel gears without outer rings mounted on the planetary shaft. However, this method has the problem that the meshing support of the bevel gears without outer rings on the planetary gears will hinder the rotation of the planetary gears.

[0004] Therefore, we need a wind power planetary gear support device to solve the problem that the existing technology of using bevel gears without outer rings to mesh with planetary gears will hinder the rotation of the planetary gears, and can provide free support for the planetary gears according to their positions. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that the use of bevel gears without outer rings to mesh with planetary gears in the prior art would hinder the rotation of the planetary gears. This application provides a wind power planetary gear support device that can freely support the planetary gears according to their positions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: comprising a planetary gear, a sun gear, and a ring gear, wherein the outer surface of the planetary gear meshes with the outer surface of the sun gear, and the inner surface of the ring gear meshes with the outer surface of the planetary gear; characterized in that: a gear support base is provided on the outside of the ring gear, and a gear support cover is provided at the front end of the planetary gear; a ring gear support block is provided inside the gear support base, a planetary gear fixing support shaft is provided in the middle of the gear support cover, the inner side of the ring gear support block engages with the outer surface of the ring gear, a central fixing disk is provided in the middle of the rear end of the planetary gear fixing support shaft, and planetary gear movable shaft seats are symmetrically slidably mounted on the outer side of the central fixing disk.

[0007] Preferably, the rear end of the gear support base is provided with a rotating groove that matches the rotating shaft of the sun gear, and the front end of the gear support cover is provided with a rotating groove that matches the rotating shaft of the planetary gear fixed support shaft.

[0008] Preferably, the front end surface of the gear support base and the rear end surface of the gear support cover are fixedly connected by bolts.

[0009] Preferably, a sun gear bearing is fixedly installed at the rear end of the central fixed disk, and the inner surface of the sun gear bearing engages with the outer surface of the front end of the sun gear shaft.

[0010] Preferably, a cover is fixedly installed on the outer surface of the sun gear shaft seat, the outer surface of the cover is in contact with the inner surface of the gear support cover, and the surface of the cover is symmetrically provided with adjustment grooves adapted to the rotating shaft of the planetary gear.

[0011] Preferably, the planetary gear movable shaft seat is provided in four sets, and pins are symmetrically arranged on the inner side of each of the four sets of planetary gear movable shaft seats, and there are eight sets of pins.

[0012] Preferably, the outer surface of the front end of the planetary gear is fixed by a pin engaging with the inner wall of the planetary gear movable shaft seat, and the engagement point between the planetary gear movable shaft seat and the planetary gear is provided with an engagement groove adapted to the pin.

[0013] Preferably, a gasket is provided on the outer side of the gear ring support block, the number of gaskets being adapted to the number of gear ring support blocks, and the gasket is fixedly installed on the inner side wall of the gear support base.

[0014] Preferably, the gear ring support block is inserted and installed on the inner side of the gasket, and the inner sidewall of the gasket is provided with a slot that matches the gear ring support block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention proposes a wind turbine planetary gear support device that uses a slidingly adjustable planetary gear movable shaft seat instead of a bevel gear to fix and support the planetary gears. The planetary gear movable shaft seat is assembled by a central fixed plate, so that the torque generated by the rotation of the planetary gears is concentrated on the planetary gear fixed support shaft. The planetary gears can rotate freely and drive the planetary gear fixed support shaft to rotate. When applied to wind power equipment, the wind turbine blades are mounted at the front end of the planetary gear fixed support shaft and rotate, causing the planetary gear fixed support shaft to drive the planetary gears to rotate in the opposite direction. This solves the problem that the existing technology, which uses bevel gears without outer rings to mesh and support the planetary gears, will hinder the rotation of the planetary gears. It can freely support the planetary gears according to their positions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure after the present invention is assembled.

[0018] Figure 2 This is a schematic diagram of the gear support cover after it is opened according to the present invention;

[0019] Figure 3 This is a schematic diagram of the gear support base structure after separation according to the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the gear support base of the present invention;

[0021] Figure 5 This is a schematic diagram of the installation structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the planetary gear fixed support shaft structure of the present invention;

[0023] Figure 7 This is a schematic diagram of the internal structure of the central fixing disk of the present invention;

[0024] Figure 8 This is a schematic diagram of the planetary gear bearing adjustment mechanism of the present invention;

[0025] Figure 9 This is a schematic diagram of the gear ring fixing structure of the present invention;

[0026] Figure 10 This is a schematic diagram of the gear ring disassembly structure of the present invention;

[0027] Figure 11 This is a schematic diagram of the planetary gear rotating guide rail mechanism of the present invention.

[0028] In the diagram: 1. Gear support base; 2. Gear support cover; 3. Planetary gear fixed support shaft; 31. Central fixed plate; 32. Sun gear shaft seat; 321. Cover; 33. Planetary gear movable shaft seat; 331. Pin; 4. Gear ring support block; 41. Shim; 5. Planetary gear; 6. Sun gear; 7. Gear ring; 8. Planetary gear rotating guide rail mechanism; 81. Bolt rod; 82. Adjusting nut; 83. Guide rail frame; 84. Limiting spring; 9. Planetary gear shaft seat adjustment mechanism; 91. First conical gear disc; 92. Adjusting conical gear; 93. Second conical gear disc; 94. Threaded rod; 95. Meshing conical gear. Implementation

[0029] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other. Example

[0033] Please see Figures 1 to 11 This invention provides a technical solution comprising a planetary gear 5, a sun gear 6, and a gear ring 7. The outer surfaces of the planetary gear 5 and the sun gear 6 mesh with each other, and the inner surface of the gear ring 7 meshes with the outer surface of the planetary gear 5. The gear ring 7 is characterized by having a gear support base 1 on its exterior, a gear support cover 2 at the front end of the planetary gear 5, a gear ring support block 4 inside the gear support base 1, a planetary gear fixing support shaft 3 in the middle of the gear support cover 2, the inner side of the gear ring support block 4 engaging with the outer surface of the gear ring 7, a central fixing disk 31 at the middle of the rear end of the planetary gear fixing support shaft 3, and planetary gear movable shaft seats 33 symmetrically slidably mounted on the outer side of the central fixing disk 31. The gear support base 1 has a rotating groove adapted to the rotating shaft of the sun gear 6 at its middle rear end, and the gear support cover 2 has a rotating groove adapted to the rotating shaft of the planetary gear fixing support shaft 3 at its middle front end. The front end side surface of the gear support base 1 and the rear end side surface of the gear support cover 2 are fixedly connected by bolts.

[0034] The planetary gear movable shaft seat 33 can slide and be adjusted on the central fixed plate 31, replacing the bevel gear to fix and support one end of the planetary gear 5's rotating shaft. The planetary gear movable shaft seat 33 is assembled through the central fixed plate 31, so that the torque generated by the rotation of the planetary gear is concentrated on the planetary gear fixed support shaft 3. The planetary gear 5 can rotate freely and drive the planetary gear fixed support shaft 3 to rotate. When applied to wind power equipment, the wind turbine blades are mounted on the front end of the planetary gear fixed support shaft 3 and rotate, causing the planetary gear fixed support shaft 3 to drive the planetary gear 5 to rotate in the opposite direction. With the cooperation of the gear ring 7, the planetary gear 5 drives the sun gear 6 to rotate and changes the speed of the sun gear 6, so that the sun gear 6 rotates at high speed. The sun gear 6 can rotate fixedly with the generator shaft to generate wind power. This solves the problem that the existing technology of using a bevel gear without an outer ring to mesh and support the planetary gears will hinder the rotation of the planetary gears. The planetary gears can be freely supported according to their positions. Example

[0035] See attached document Figures 7 to 8Based on Embodiment 1, in order to facilitate the adjustment of the planetary gear movable bearing 33 to adapt to the position of the planetary gear 5, this embodiment adds a planetary gear bearing adjustment mechanism 9 inside the central fixed disk 31. The planetary gear bearing adjustment mechanism 9 includes a first conical gear disk 91 and a second conical gear disk 93 rotatably mounted in the middle of the central fixed disk 31. The middle part of the second conical gear disk 93 is fixedly connected to the middle part of the first conical gear disk 91. An adjusting conical gear 92 is provided on the outer side of the first conical gear disk 91. The adjusting conical gear 92 is rotatably mounted on the front side wall of the central fixed disk 31. The outer surface of the adjusting conical gear 92 meshes with the outer surface of the first conical gear disk 91. A threaded rod 94 is symmetrically rotatably mounted on the rear side wall of the central fixed disk 31. The position of the threaded rod 94 corresponds one-to-one with the position of the planetary gear movable bearing 33. A meshing conical gear 95 is fixedly mounted on one end of the threaded rod 94. The outer surface of the meshing conical gear 95 meshes with the outer surface of the second conical gear disk 93.

[0036] At the initial installation of planetary gear 5, rotating the bevel gear 92 can rotate the first bevel gear disk 91. The second bevel gear disk 93, being coaxially fixed with the first bevel gear disk 91, will rotate synchronously with the first bevel gear disk 91. The meshing bevel gear 95, meshing with the second bevel gear disk 93, causes the four sets of meshing bevel gears 95 to rotate synchronously and in the same direction, thereby driving the four sets of threaded rods 94 to rotate. This allows the planetary gear movable shaft seat 33 to slide and adapt to the installation position of planetary gear 5 under the limiting cooperation of the central fixed disk 31, thus supporting planetary gear 5. This further solves the problem that the existing technology of using bevel gears without outer rings to mesh and support planetary gears will hinder the rotation of planetary gears. It can freely support planetary gears according to their positions. Example

[0037] See attached document Figures 9 to 11 Based on Embodiment 2, in order to ensure the stability of the rotation of the other end shaft of the planetary gear 5, this embodiment adds a planetary gear rotation guide mechanism 8. The planetary gear rotation guide mechanism 8 includes a bolt rod 81 symmetrically rotatably mounted on the inner side wall of the middle part of the gear support base 1. An adjusting nut 82 is provided on the outer surface of one end of the bolt rod 81. The inner surface of the adjusting nut 82 is threadedly connected to the outer surface of the bolt rod 81. A guide frame 83 is provided on the outer side of the adjusting nut 82. A sliding groove adapted to the second conical gear disk 93 is provided on the inner wall of the gear support base 1. One side of the guide frame 83 is slidably connected to the inner side wall of the gear support base 1. The middle inner wall of the guide frame 83 is slidably connected to the outer surface of the bolt rod 81. A limit spring 84 is sleeved on the outer surface of the other end of the bolt rod 81. One end of the limit spring 84 is in contact with the side surface of the guide frame 83.

[0038] By rotating the adjusting nut 82 in the middle of the bolt rod 81, the guide rail frame 83 can be pushed to slide and adjust its position on the gear support base 1. The adjustment is made according to the rotation axis position of the planetary gear 5 to ensure that the guide rail frame 83 can limit the rotation of the planetary gear 5, so that the rotation of the planetary gear 5 remains stable. The limiting spring 84 compresses the guide rail frame 83 to keep the guide rail frame 83 stable when the planetary gear 5 rotates. This further solves the problem that the existing technology of using a bevel gear without an outer ring to mesh with the planetary gear will hinder the rotation of the planetary gear. The planetary gear can be freely supported according to its position. Example

[0039] See attached document Figures 1 to 11 Based on Embodiment 3, this embodiment proposes that a sun gear bearing 32 is fixedly installed at the rear end of the central fixed disk 31, and the inner surface of the sun gear bearing 32 engages with the outer surface of the front end of the sun gear 6's rotating shaft; a cover 321 is fixedly installed on the outer surface of the sun gear bearing 32, and the outer surface of the cover 321 contacts the inner surface of the gear support cover 2; the surface of the cover 321 is symmetrically provided with adjusting grooves adapted to the rotating shaft of the planetary gear 5; four sets of planetary gear movable bearings 33 are provided, and pins are symmetrically provided on the inner side of each of the four sets of planetary gear movable bearings 33. 331, pins 331 are provided in eight sets; the outer surface of the front end of the planetary gear 5 is engaged and fixed with the inner wall of the planetary gear movable shaft seat 33 by the pins 331, and the engagement points of the planetary gear movable shaft seat 33 and the planetary gear 5 are respectively provided with engagement grooves that are adapted to the pins 331; a gasket 41 is provided on the outer side of the gear ring support block 4, the number of gaskets 41 is adapted to the number of gear ring support blocks 4, and the gaskets 41 are fixedly installed on the inner side wall of the gear support base 1; the gear ring support block 4 is inserted into the inner side of the gasket 41, and the inner side wall of the gasket 41 is provided with a slot adapted to the gear ring support block 4;

[0040] The sun gear bearing 32 provides stable support for the front end of the sun gear 6's rotating shaft. When the gear support base 1 and gear support cover 2 are fixedly installed, the sun gear bearing 32 seals the meshing relationship between the planet gear 5, the sun gear 6, and the ring gear 7 on its inner side, making its rotation stable. The pin 331 can fix the rotating shaft of the planet gear 5 to the inner wall of the planet gear movable bearing 33, and facilitates disassembly. The ring gear support block 4 engages with the outer periphery of the ring gear 7 without affecting the rotation of the ring gear 7. The washer 41 inserts into the ring gear support block 4 so that the ring gear support block 4 supports the side wall of the ring gear 7. This further solves the problem that the existing technology of using a bevel gear without an outer ring to mesh with the planet gears would hinder the rotation of the planet gears. The planet gears can be freely supported according to their positions. Example

[0041] This embodiment proposes a method for using a wind power planetary gear support device, including the following steps:

[0042] Step 1: Use the gear ring support block 4 to engage the gear ring 7 and fix the gear ring support block 4 on the washer 41. Place the planetary gear 5 on the inside of the gear ring 7 and mark the position where its rotating shaft contacts the gear support base 1. By rotating the adjusting nut 82 in the middle of the bolt rod 81, the guide rail frame 83 can be pushed to slide and adjust its position on the gear support base 1. Adjust according to the position of the rotating shaft of the planetary gear 5 to ensure that the guide rail frame 83 can limit the rotation of the planetary gear 5, and test the rotational stability of the planetary gear 5.

[0043] Step 2: Remove planetary gear 5, install sun gear 6 at the center of gear support base 1, and install planetary gear 5 between sun gear 6 and gear ring 7. Rotate and adjust bevel gear 92 to make the first bevel gear disk 91 rotate so that the second bevel gear disk 93 rotates synchronously. Meshing bevel gear 95 drives the four sets of threaded rods 94 to rotate, so that planetary gear movable shaft seat 33 slides under the limiting cooperation of central fixed disk 31 and matches the installation position of planetary gear 5.

[0044] Step 3: Fix one end of the planetary gear 5's rotating shaft to the planetary gear movable shaft seat 33 using pins 331. Install the planetary gear fixed support shaft 3 and the planetary gear 5 together inside the gear support base 1. Rotate the planetary gear fixed support shaft 3 to test whether the planetary gear 5 can drive the sun gear 6 to rotate.

[0045] Step 4: Pass the gear support cover 2 through the planetary gear fixing support shaft 3, and use bolts to fix the gear support cover 2 to the gear support base 1 to complete the support installation of the planetary gear.

[0046] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A wind turbine planetary gear support device, comprising a planetary gear (5), a sun gear (6), and a gear ring (7), wherein the outer surface of the planetary gear (5) meshes with the outer surface of the sun gear (6), and the inner surface of the gear ring (7) meshes with the outer surface of the planetary gear (5), characterized in that: The gear ring (7) is provided with a gear support base (1) on its outside, and the front end of the planetary gear (5) is provided with a gear support cover (2). The gear support base (1) is provided with a gear ring support block (4) inside, and a planetary gear fixed support shaft (3) is provided in the middle of the gear support cover (2). The inner side of the gear ring support block (4) engages with the outer surface of the gear ring (7). A central fixed disk (31) is provided in the middle of the rear end of the planetary gear fixed support shaft (3). A planetary gear movable shaft seat (33) is symmetrically slidably installed on the outer side of the central fixed disk (31). The rear end of the central fixed disk (31) is fixedly installed with a sun gear bearing seat (32), and the inner surface of the sun gear bearing seat (32) engages with the outer surface of the front end of the sun gear (6) shaft. A cover (321) is fixedly installed on the outer surface of the sun gear shaft seat (32). The outer surface of the cover (321) is in contact with the inner surface of the gear support cover (2). The surface of the cover (321) is symmetrically provided with adjustment grooves that are adapted to the rotating shaft of the planetary gear (5). The planetary gear movable shaft seat (33) is provided in four sets, and pins (331) are symmetrically provided on the inner side of each of the four sets of planetary gear movable shaft seats (33), and there are eight sets of pins (331). The outer surface of the front end of the planetary gear (5) is fixed to the inner wall of the planetary gear movable shaft seat (33) by a pin (331). The movable shaft seat (33) of the planetary gear and the planetary gear (5) are respectively provided with a locking groove that is compatible with the pin (331).

2. The wind power planetary gear support device according to claim 1, characterized in that: The gear support base (1) has a rotating groove at the rear center that is compatible with the rotating shaft of the sun gear (6), and the gear support cover (2) has a rotating groove at the front center that is compatible with the rotating shaft of the planetary gear fixed support shaft (3).

3. A wind power planetary gear support device according to claim 2, characterized in that: The front side surface of the gear support base (1) is fixedly connected to the rear side surface of the gear support cover (2) by bolts.

4. A wind power planetary gear support device according to claim 1, characterized in that: A gasket (41) is provided on the outside of the gear ring support block (4). The number of gaskets (41) is matched with the number of gear ring support blocks (4). The gaskets (41) are fixedly installed on the inner side wall of the gear support base (1).

5. A wind power planetary gear support device according to claim 4, characterized in that: The gear ring support block (4) is inserted into the inner side of the gasket (41), and the inner sidewall of the gasket (41) is provided with a slot that is compatible with the gear ring support block (4).

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