Wind power generation variable pitch bearing convenient to install

Abstract

The wind power generation variable-pitch bearing convenient to install comprises a variable-pitch bearing inner ring, a variable-pitch bearing outer ring is installed on the outer wall of the variable-pitch bearing inner ring, an inner gear ring is arranged in the variable-pitch bearing inner ring, a first installation hole is formed in the outer surface of the upper end of the variable-pitch bearing inner ring, and a second installation hole is formed in the outer surface of the lower end of the variable-pitch bearing inner ring. A limiting ring is fixedly installed at the bottom of an inner cavity of the variable pitch bearing inner ring, a limiting hole is formed in the outer surface of the upper end of the limiting ring, and a material pressing assembly is installed at the upper end of the variable pitch bearing inner ring and comprises a material pressing ring, an installation ring and a second installation hole. According to the wind power generation variable-pitch bearing convenient to install, the inner gear ring and the variable-pitch bearing inner ring are convenient to assemble and disassemble, the inner gear ring is convenient to overhaul and maintain, and the variable-pitch bearing is convenient to hoist and install through the arranged hoisting ring.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of variable pitch bearing, concretely to a wind power variable pitch bearing convenient to install. BACKGROUND

[0002] Variable pitch bearing is a special bearing for wind turbine, which is mainly installed between wind turbine blade and hub, and plays an important role in connecting rotor hub and rotor blade, controlling blade wind angle, controlling wind wheel speed and fan output power.

[0003] The variable pitch bearing in the prior art contains an inner gear ring, which is welded on the inner wall of the inner ring of the variable pitch bearing and belongs to a structure prone to wear, but is inconvenient to disassemble and inconvenient to replace and maintain.

[0004] Therefore, the utility model provides a wind power variable pitch bearing convenient to install. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a wind power variable pitch bearing convenient to install, which is convenient to install and disassemble, convenient to overhaul and maintain and has other advantages, and can effectively solve the problems in the background art.

[0007] (II) technical scheme

[0008] To achieve the above object, the utility model takes the technical scheme that a wind power variable pitch bearing convenient to install, including variable pitch bearing inner ring, the outer wall of the variable pitch bearing inner ring is installed with variable pitch bearing outer ring, the inside of the variable pitch bearing inner ring is provided with inner gear ring, the upper end outer surface of the variable pitch bearing inner ring is equipped with first mounting hole, the bottom of the inner cavity of the variable pitch bearing inner ring is fixedly installed with limit ring, the upper end outer surface of the limit ring is equipped with limit hole, the upper end of the variable pitch bearing inner ring is installed with pressure material assembly, the pressure material assembly includes pressure material ring, installation ring and second mounting hole, the fixed bolt is set up between the pressure material assembly and the variable pitch bearing inner ring, the lower end outer surface of the inner gear ring is fixedly installed with limit pin, one side of the variable pitch bearing outer ring is fixedly installed with lifting ring.

[0009] Preferably, the limit ring is limited to the lower end outer surface of the inner gear ring, and the pressure material ring is limited to the upper end outer surface of the inner gear ring.

[0010] Preferably, the limit pin is inserted between the outer wall and the limit hole.

[0011] Preferably, the outer wall of the pressure material ring is inserted between the inner wall of the variable pitch bearing inner ring.

[0012] Preferably, the mounting ring is fixedly mounted on the outer wall of the upper portion of the pressure ring, and the second mounting hole is arranged on the outer surface of the upper end of the mounting ring.

[0013] Preferably, the mounting ring is arranged on the outer surface of the upper end of the inner ring of the variable pitch bearing, and the fixing bolt is threadedly connected between the second mounting hole and the first mounting hole.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the wind power variable pitch bearing convenient to install has the following beneficial effects:

[0016] 1. The wind power variable pitch bearing convenient to install is convenient to assemble and disassemble between the inner gear ring and the inner ring of the variable pitch bearing, and facilitates the maintenance and maintenance of the inner gear ring.

[0017] 2. The wind power variable pitch bearing convenient to install is convenient to lift and install the variable pitch bearing through the lifting ring. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the wind power variable pitch bearing convenient to install.

[0019] Figure 2 It is a local structure schematic view of the wind power variable pitch bearing convenient to install.

[0020] Figure 3 It is a bottom structure schematic view of the inner gear ring in the wind power variable pitch bearing convenient to install.

[0021] Figure 4 It is a structure schematic view of the pressure assembly in the wind power variable pitch bearing convenient to install.

[0022] In the figure: 1, the inner ring of the variable pitch bearing; 2, the outer ring of the variable pitch bearing; 3, the pressure assembly; 4, the inner gear ring; 5, the first mounting hole; 6, the limiting ring; 7, the limiting hole; 8, the limiting pin; 9, the pressure ring; 10, the mounting ring; 11, the second mounting hole; 12, the lifting ring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] The embodiment is a wind power variable pitch bearing convenient to install.

[0025] As Figures 1-4As shown, including the pitch bearing inner ring 1, the outer wall of the pitch bearing inner ring 1 is provided with the pitch bearing outer ring 2, the inside of the pitch bearing inner ring 1 is provided with the inner gear ring 4, the upper end outer surface of the pitch bearing inner ring 1 is provided with the first mounting hole 5, the bottom of the inner cavity of the pitch bearing inner ring 1 is fixedly provided with the limiting ring 6, the upper end outer surface of the limiting ring 6 is provided with the limiting hole 7, the upper end of the pitch bearing inner ring 1 is provided with the pressing assembly 3, the pressing assembly 3 includes the pressing ring 9, the mounting ring 10 and the second mounting hole 11, the fixing bolt is arranged between the pressing assembly 3 and the pitch bearing inner ring 1, the lower end outer surface of the inner gear ring 4 is fixedly provided with the limiting pin 8, and the side of the pitch bearing outer ring 2 is fixedly provided with the lifting ring 12.

[0026] The limiting ring 6 is limited to the lower end outer surface of the inner gear ring 4, and the pressing ring 9 is limited to the upper end outer surface of the inner gear ring 4; the outer wall of the limiting pin 8 and the limiting hole 7 are inserted; the outer wall of the pressing ring 9 and the inner wall of the pitch bearing inner ring 1 are inserted; the mounting ring 10 is fixedly installed on the outer wall of the upper portion of the pressing ring 9, and the second mounting hole 11 is arranged on the upper end outer surface of the mounting ring 10; the mounting ring 10 is located on the upper end outer surface of the pitch bearing inner ring 1, and the fixing bolt is threadedly connected between the second mounting hole 11 and the first mounting hole 5.

[0027] It should be noted that the utility model is a kind of wind power generation variable pitch bearing, the pitch bearing inner ring 1, the pitch bearing outer ring 2 and the inner gear ring 4 described in the text all belong to prior art, which can be effectively known by the skilled person in the art, and specific details will not be repeated;The inner gear ring 4 and the pitch bearing inner ring 1 are detachably connected, when installing, the limiting pin 8 on one side of the inner gear ring 4 is inserted into the limiting hole 7 for limiting, the inner gear ring 4 is limited by the limiting ring 6, then the pressing assembly 3 is installed, the pressing ring 9 in the pressing assembly 3 is inserted into the inside of the pitch bearing inner ring 1 and abuts against the side of the inner gear ring 4 away from the limiting ring 6, then the bolt is connected between the second mounting hole 11 and the first mounting hole 5, so that the installation of the pressing assembly 3 is realized, the inner gear ring 4 is limited by the pressing assembly 3 and the limiting ring 6, so that the inner gear ring 4 and the pitch bearing inner ring 1 are convenient to install and detach, and the inner gear ring 4 is convenient to disassemble for maintenance and maintenance or replacement;The lifting ring 12 is arranged, which facilitates lifting the variable pitch bearing and facilitates the installation of the variable pitch bearing.

[0028] It is to be noted that, in this document, the terms such as first and second, etc. are used merely to distinguish one entity or action from another, and do not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the statement "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the stated element.

[0029] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A wind power variable pitch bearing convenient to install, comprising a variable pitch bearing inner ring (1), a variable pitch bearing outer ring (2) is mounted on the outer wall of the variable pitch bearing inner ring (1), and an internal gear ring (4) is arranged in the inside of the variable pitch bearing inner ring (1), characterized in that: The upper end outer surface of the variable pitch bearing inner ring (1) is provided with a first mounting hole (5), the bottom of the inner cavity of the variable pitch bearing inner ring (1) is fixedly provided with a limiting ring (6), the upper end outer surface of the limiting ring (6) is provided with a limiting hole (7), the upper end of the variable pitch bearing inner ring (1) is provided with a pressing assembly (3), the pressing assembly (3) comprises a pressing ring (9), a mounting ring (10) and a second mounting hole (11), a fixing bolt is arranged between the pressing assembly (3) and the variable pitch bearing inner ring (1), the lower end outer surface of the inner gear ring (4) is fixedly provided with a limiting pin (8), one side of the variable pitch bearing outer ring (2) is fixedly provided with a lifting ring (12).

2. A wind power variable pitch bearing for easy installation according to claim 1, characterized in that: The limiting ring (6) is limited to the lower end outer surface of the inner gear ring (4), and the pressing ring (9) is limited to the upper end outer surface of the inner gear ring (4).

3. A wind power variable pitch bearing for easy installation according to claim 2, characterized in that: The outer wall of the limiting pin (8) and the limiting hole (7) are inserted.

4. A wind power variable pitch bearing for ease of installation according to claim 3, characterized in that: The outer wall of the pressing ring (9) and the inner wall of the variable pitch bearing inner ring (1) are inserted.

5. A wind power variable pitch bearing for ease of installation according to claim 4, characterized in that: The mounting ring (10) is fixedly installed on the outer wall of the upper portion of the pressing ring (9), and the second mounting hole (11) is arranged on the upper end outer surface of the mounting ring (10).

6. A wind power variable pitch bearing for ease of installation according to claim 5, characterized in that: The mounting ring (10) is located on the upper end outer surface of the variable pitch bearing inner ring (1), and the fixing bolt is threadedly connected between the second mounting hole (11) and the first mounting hole (5).

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