CN213765677U - Aerogenerator bearing dismounting device - Google Patents

Abstract

The application provides a aerogenerator bearing dismounting device, including supporting base, lip block, two tension screw, it includes circular arc portion and two extensions to support the base, circular arc portion is semi-circular open structure, the extension does the downward vertical extension piece in circular arc portion both sides, two first screws have been seted up to the symmetry on the support base, tension screw one end with it passes through to support the base the screw spiro union, the lip block is the cuboid structure, the lip block has seted up two second screws along long limit axis symmetry, tension screw's the other end with the lip block passes through second screw spiro union. The bearing dismounting device has the characteristics of light and handy volume, convenience in use, strong adaptability and the like.

Description

Aerogenerator bearing dismounting device

Technical Field

The utility model belongs to the technical field of aerogenerator, especially, relate to an aerogenerator bearing dismounting device.

Background

When a front end bearing of a generator of a wind turbine generator needs to be disassembled due to reasons such as fault maintenance and the like, a cutting and disassembling method or a pulling-out method is often adopted due to space arrangement of a fan cabin and limitation of high-altitude operation.

The cutting and detaching method is to adopt a cutting tool to radially cut the bearing from outside to inside, the danger coefficient is increased during cutting, the main shaft is easily damaged, the bearing detached after cutting is scrapped and cannot be installed and used, and unnecessary waste is generated, so that the construction cost is greatly increased.

The pulling method is characterized in that a special tool for detaching the bearing is adopted, a bend angle between two feet of the puller is outwards opened, when the inner ring of the bearing is detached, the bend angle between the two feet of the puller is reversed, the bend angle is inward and is clamped on the end surface of the inner ring of the bearing, an operator aligns a screw rod to a central hole of a shaft, and the bearing is slowly pulled out by rotating a handle; the bearing is dismantled to this kind of scheme efficiency is higher, but stability is not good, often appears the lead screw crooked or the atress condition of drag hook and bearing inhomogeneous and cause the bearing damage, can't use, and because of aerogenerator axle is stretched longer, the unable installation of the horse of drawing is used for mostly, even the size is suitable, also can't pull out because of actual stretching moment is less during the use. The two methods are not suitable for disassembling the bearing of the wind driven generator.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a aerogenerator bearing dismounting device for solve the technical problem that aerogenerator bearing dismantles the difficulty.

In order to solve the above technical problems, the present application provides the following technical solutions:

the utility model provides a aerogenerator bearing dismounting device, including supporting base, lip block, two tension screw rods, jack, the support base includes circular arc portion and two extensions, circular arc portion is semi-circular open structure, the extension does the downward vertical extension piece in circular arc portion both sides, two first screws have been seted up to the symmetry on the support base, tension screw rod one end with the support base passes through the screw spiro union, the lip block is the cuboid structure, the lip block has seted up two second screws along long limit axis symmetry, tension screw rod's the other end with the lip block passes through second screw spiro union, the jack is used for providing bearing dismounting device with moment between the bearing.

Preferably, the inner diameter of the circular arc part is the same as the diameter of a main shaft where the bearing to be disassembled is located, and the distance between the two extending parts is the same as the inner diameter of the circular arc part.

Preferably, the supporting base and the supporting cushion block are made of steel.

Based on above-mentioned embodiment can see, the utility model provides a aerogenerator bearing dismounting device. Including supporting base, lip block, two tension screw, it includes circular arc portion and two extensions to support the base, circular arc portion is semi-circular open structure, the extension does the downward vertical extension piece in circular arc portion both sides, two first screws have been seted up to the symmetry on the support base, tension screw one end with the support base passes through the screw spiro union, the lip block is the cuboid structure, the lip block has seted up two second screws along long limit axis symmetry, tension screw's the other end with the lip block passes through the second screw spiro union. When the support base is used, the support base is clamped and seated on a main shaft behind a bearing according to the opening direction, the two tension screws are rotatably installed on the support base, the other ends of the two tension screws penetrate into the support cushion block, the support cushion block is placed at the position of the shaft extension end of the main shaft of the generator according to the horizontal direction, a jack is placed between the support cushion block and the end of the shaft extension end, the positions of the bearing base and the support cushion block are adjusted, the two tension screws are guaranteed to be parallel to the axial direction, and the bearing can be safely and quickly pulled out by screwing the moment through the jack.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a supporting base structure according to an embodiment of the present invention;

fig. 2 is a schematic view of a supporting pad structure according to an embodiment of the present invention;

fig. 3 is a schematic view of a first working state of a bearing dismounting device for a wind turbine according to an embodiment of the present invention;

fig. 4 is a schematic view of a second working state of the bearing dismounting device for a wind turbine provided by an embodiment of the present invention.

The reference numbers illustrate: 1-a support base; 2-supporting the cushion block; 3-a tension screw; 4-a jack; 5-a bearing; 6-a main shaft; 7-a generator; 11-a circular arc portion; 12-an extension; 13-a first screw hole; 21-second screw hole.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the embodiments of the present invention will be clearly and completely described below 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 is the embodiment of the utility model provides a support base 1 schematic structure diagram, fig. 2 is the embodiment of the utility model provides a support cushion block 2 schematic structure diagram, fig. 3 is the embodiment of the utility model provides a first operating condition schematic diagram of aerogenerator bearing dismounting device, fig. 4 is the embodiment of the utility model provides a provide a second operating condition schematic diagram of aerogenerator bearing dismounting device, combine fig. 1 to fig. 4 below, it is right the utility model provides a aerogenerator bearing dismounting device does further explanation.

As shown in fig. 1 to 4, a bearing dismounting device for a wind turbine according to an embodiment of the present application mainly includes: the device comprises a supporting base 1, supporting cushion blocks 2, two tension screws 3 and a jack 4.

Specifically, support base 1 by the steel preparation, support base 1 includes arc portion 11 and two extensions 12, arc portion 11 is semi-circular open structure, extension 12 is 11 both sides vertical extension piece downwards of arc portion, the internal diameter of arc portion 11 is the same with the diameter of waiting to dismantle main shaft 6, the interval of two extensions 12 is the same with the internal diameter of arc portion 11, arc portion 11 can with wait to dismantle the laminating of main shaft 6 periphery, extension 12 downwardly extending 80 mm. The opening structure of the supporting base 1 increases the stability of the supporting base 1 on the one hand, and on the other hand increases the contact area to provide better supporting effect, the opening type can be conveniently installed, the collision and friction damage to the main shaft 6 in the use process of falling off can be effectively avoided, the outer diameter size can coat the outer diameter of the main shaft 6, and the stress area is effectively increased. Two first screw holes 13 are symmetrically formed in the supporting base 1, and one end of the tension screw rod 3 is in threaded connection with the supporting base 1 through the first screw holes 13. The supporting cushion block 2 is made of steel, the supporting cushion block 2 is of a cuboid structure, two second screw holes 21 are symmetrically formed in the supporting cushion block 2 along the central axis of the long edge, and the other end of the tension screw rod 3 is in threaded connection with the supporting cushion block 2 through the second screw holes 21. The jack 4 is used to provide a moment between the bearing removal device and the bearing 5, and the wind turbine bearing removal device assists the jack 4 in use. Bearing torque is big when this aerogenerator bearing dismounting device uses, and non-deformable does not receive the axle to stretch end length influence, can cooperate the pulling force screw rod 3 of different length to carry out the convenient transport of the 2 types of facilitate use supporting pad and installation, can provide effectual pulling force and support, and furthest has protected bearing 5 or main shaft 6 that need the maintenance, can promote the bearing 5 dismantlement that is applicable to different models through the length change of pulling force screw rod 3.

As shown in fig. 3, in use, the support base 1 is clamped on the main shaft 6 behind the bearing 5 in the opening direction, the two tension screws 3 are rotatably mounted on the support base 1 and fixed by bolts, the support cushion block 2 is placed at the shaft extension end position of the generator 7 in the horizontal direction, the two tension screws 3 penetrate into the support cushion block 2, the positions of the bearing base 1 and the support cushion block 2 are adjusted to ensure that the two tension screws 3 are parallel to the main shaft 6, two nuts are mounted at the outlet of the tension screws 3, and the bearing 5 can be safely and quickly pulled out by screwing the moment through the jack 4 (as shown in fig. 4).

The application provides a aerogenerator bearing dismounting device, fine solution the not enough problem of construction space of dismantling the generator bearing on the wind turbine generator system pylon, can provide convenience for the bearing 5 dismantlement on the generator main shaft 6 that the major axis stretches. The moment fit between the supporting base 1 and the supporting cushion block 2 which can be flexibly assembled is adopted, and the bearing of the wind turbine generator can be safely, conveniently and nondestructively disassembled. The bearing dismounting device is economical, durable, simple and convenient to operate, low in cost, light and handy, and very suitable for dismounting the generator bearing on the tower of the wind turbine generator.

Since the above embodiments are all described by referring to and combining with other embodiments, the same portions are provided between different embodiments, and the same and similar portions between the various embodiments in this specification may be referred to each other. And will not be described in detail herein.

It should be noted that, unless otherwise specified and limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, mechanically or electrically connected, or may be communicated between two elements, directly or indirectly through an intermediate medium, and specific meanings of the terms may be understood by those skilled in the relevant art according to specific situations. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or device comprising the element. Relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In addition, as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

The above-described embodiments of the present application do not limit the scope of the present application.

Claims (3)

1. A bearing dismounting device of a wind driven generator is characterized by comprising a supporting base (1), a supporting cushion block (2), two tension screws (3) and a jack (4), wherein the supporting base (1) comprises an arc part (11) and two extending parts (12), the arc part (11) is of a semicircular opening structure, the extending parts (12) are downward vertical extending blocks at two sides of the arc part (11), the supporting base (1) is symmetrically provided with two first screw holes (13), one end of each tension screw (3) is in threaded connection with the supporting base (1) through the first screw holes (13), the supporting cushion block (2) is of a cuboid structure, the supporting cushion block (2) is symmetrically provided with two second screw holes (21) along a central axis of a long edge, and the other end of each tension screw (3) is in threaded connection with the supporting cushion block (2) through the second screw holes (21), the jack (4) is used for providing moment between the bearing dismounting device and the bearing (5).

2. A bearing dismounting device for a wind turbine according to claim 1, characterized in that the inner diameter of said circular arc portion (11) is the same as the diameter of the main shaft (6) where the bearing (5) to be dismounted is located, and the distance between the two extensions (12) is the same as the inner diameter of said circular arc portion (11).

3. Aerogenerator bearing dismounting device according to claim 1, characterized in that the support base (1) and the rest block (2) are made of steel.

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