Planet carrier structure for wind driven generator

Abstract

The planet carrier structure comprises a front side plate and a rear side plate, a plurality of supporting columns are arranged between the front side plate and the rear side plate in the circumferential direction at equal intervals, each supporting column is composed of a first connecting plate and a second connecting plate, and the front side plate and the rear side plate are fixedly connected through bolts at the positions of the supporting columns. The inner surface of the assembled planet carrier can be exposed before assembly, so that a user can conveniently carry out machining operation, the assembled planet carrier is simple and reliable in structure and convenient to mount and dismount, the maintenance cost can be reduced, the axial connection strength between the first connecting plate and the second connecting plate can be improved through the reinforcing plates located in the inserting grooves, and the service life of the planet carrier is prolonged. And the middle part of the bolt is prevented from deforming in a continuous external force state, so that internal components of the planet carrier are prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power generators, in particular to a planetary frame structure used for wind power generators. Background Art

[0002] The working principle of a wind turbine is relatively simple. The wind wheel rotates under the action of wind force, which converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator rotates and generates electricity under the drive of the wind wheel shaft. As an important core component of the electric wheel drive system, the planetary gear reducer plays a role in reducing speed and increasing torque. It is one of the key structures for the stable operation of the power transmission system. The planetary carrier is one of the important components of the planetary gear reducer. Its structural design has an important influence on the load distribution and support capacity between the planetary gears.

[0003] The existing planetary carrier structure is generally produced by one-piece casting during production and processing. However, due to its complex structure and shape, its internal surface is not convenient for grinding and other operations, which increases the processing cost of the planetary carrier. Utility Model Content

[0004] The utility model aims to solve the problem that the inner surface of the one-piece planetary carrier structure in the prior art is inconvenient to process, and proposes the following technical solutions:

[0005] A planetary frame structure for a wind turbine generator comprises: a front side plate and a rear side plate, a plurality of support columns are circumferentially equidistantly arranged between the front side plate and the rear side plate, the support columns are composed of a first connecting plate and a second connecting plate, and the front side plate and the rear side plate are fixedly connected by bolts at a plurality of support column positions.

[0006] As a preferred embodiment of the above technical solution, it also includes a reinforcing plate, both ends of which are movably plugged into the connecting plate one and the connecting plate two, and the middle parts of the connecting plate one and the connecting plate two are provided with plug-in grooves corresponding to the reinforcing plate.

[0007] As a preferred embodiment of the above technical solution, the reinforcing plate is polygonal in shape, the reinforcing plate is hollow in shape, and the plug-in slot matches the reinforcing plate.

[0008] As a preferred embodiment of the above technical solution, a through groove is provided on the surface of the reinforcing plate, and a section of the bolt is movably inserted in the through groove.

[0009] The beneficial effects of the utility model are:

[0010] 1. The internal surface of the assembled planetary carrier can be "exposed" before assembly, which is convenient for users to perform processing operations. The assembled planetary carrier has a simple and reliable structure, is easy to install and disassemble, and can reduce maintenance costs;

[0011] 2. The reinforcing plate in the plug-in slot can increase the axial connection strength between the connecting plate 1 and the connecting plate 2, and prevent the middle of the bolt from deforming under continuous external force, thereby avoiding damage to the internal components of the planet carrier;

[0012] 3. The reinforcing plates and support columns are both hollow, which ensures the strength of the planetary carrier while reducing the overall weight of the planetary carrier, so that the planetary gear transmission has a high load-bearing capacity, less vibration and noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 What is shown is a schematic diagram of the overall structure of an embodiment;

[0014] Figure 2 Shown is a front cross-sectional view of an embodiment;

[0015] Figure 3 Shown is a diagram of the installation position of the reinforcement plate in the embodiment.

[0016] In the figure: 10, front side plate; 20, rear side plate; 30, support column; 31, connecting plate 1; 32, connecting plate 2; 40, bolt; 50, reinforcement plate; 51, through groove; 60, plug-in groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings of the specification.

[0018] Example

[0019] Figure 1-Figure 3 In the present invention, a planetary frame structure for a wind turbine includes: a front side plate 10 and a rear side plate 20, a plurality of support columns 30 are circumferentially equidistantly arranged between the front side plate 10 and the rear side plate 20, the support columns 30 are composed of a connecting plate 1 31 and a connecting plate 2 32, and the front side plate 10 and the rear side plate 20 are fixedly connected by bolts 40 at the positions of the plurality of support columns 30.

[0020] The internal surface of the assembled planetary carrier can be "exposed" before assembly, so that it is convenient for users to perform processing operations. The assembled planetary carrier has a simple and reliable structure, is easy to install and disassemble, and can reduce maintenance costs.

[0021] Figure 2-Figure 3 The reinforcing plate 50 is also included, and both ends of the reinforcing plate 50 are movably plugged into the connecting plate 1 31 and the connecting plate 2 32 . The middle parts of the connecting plate 1 31 and the connecting plate 2 32 are both provided with plug-in slots 60 corresponding to the reinforcing plate 50 .

[0022] The reinforcing plate 50 in the insertion groove 60 can increase the axial connection strength between the connecting plate 1 31 and the connecting plate 2 32 , and prevent the middle part of the bolt 40 from being deformed under a continuous external force state, thereby avoiding damage to the internal components of the planet carrier.

[0023] Figure 3 In the embodiment, the reinforcing plate 50 is in a polygonal shape, the reinforcing plate 50 is in a hollow shape, and the plug-in slot 60 matches the reinforcing plate 50 .

[0024] The reinforcing plate 50 and the support column 30 are both hollow, which ensures the strength of the planetary carrier while reducing the overall weight of the planetary carrier, so that the planetary gear transmission has a high load-bearing capacity, less vibration and noise.

[0025] Figure 3 In the embodiment, a through groove 51 is formed on the surface of the reinforcing plate 50 , and a portion of the bolt 40 is movably inserted into the through groove 51 .

[0026] A section of the bolt 40 is located in the through slot 51 and is protected by the reinforcing plate 50 , which further reduces the probability of deformation of the long bolt 40 , thereby extending the service life of the bolt 40 .

[0027] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A planetary frame structure for a wind turbine, comprising: A front side plate (10) and a rear side plate (20), wherein a plurality of support columns (30) are equidistantly arranged circumferentially between the front side plate (10) and the rear side plate (20), wherein the support columns (30) are composed of a connecting plate 1 (31) and a connecting plate 2 (32), and the front side plate (10) and the rear side plate (20) are fixedly connected at the positions of the plurality of support columns (30) by bolts (40).

2. The planetary carrier structure for a wind turbine according to claim 1, characterized in that: It also includes a reinforcing plate (50), the two ends of which are movably plugged into the first connecting plate (31) and the second connecting plate (32), and the middle parts of the first connecting plate (31) and the second connecting plate (32) are both provided with plugging grooves (60) corresponding to the reinforcing plate (50).

3. The planet carrier structure for a wind turbine according to claim 2, characterized in that: The reinforcing plate (50) is polygonal in shape, the reinforcing plate (50) is hollow in shape, and the insertion slot (60) matches the reinforcing plate (50).

4. The planet carrier structure for a wind turbine according to claim 2, characterized in that: A through slot (51) is provided on the surface of the reinforcing plate (50), and a section of the bolt (40) is movably inserted into the through slot (51).

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