CN211351932U

CN211351932U - Rotor shaft of direct-drive wind driven generator

Info

Publication number: CN211351932U
Application number: CN201922016306.7U
Authority: CN
Inventors: 居品良; 陈生
Original assignee: Jiangyin Jushi Machinery Manufacturing Co ltd
Current assignee: Jiangyin Jushi Machinery Manufacturing Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-25
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a direct drive formula aerogenerator's rotor shaft relates to aerogenerator technical field. The utility model discloses an axis body and axle center reinforcement, the axle chamber has been seted up in the axis body, an axis body terminal surface is seted up flutedly, the middle part is fixed with solid fixed ring in the recess, the axle center reinforcement includes the sleeve pipe, the intraductal wall of sleeve is fixed with a center pin through a plurality of backup pads, the center pin sets up with the sleeve pipe is concentric, sleeve pipe one end week side is fixed with fixed edge, fixed edge is the same with the recess internal diameter, fixed edge is located the recess inside and fixes at solid fixed ring side through the fastener, sleeve pipe one end week side just is located the fixed position of following. The utility model discloses a with offering the axle chamber on the axis body, can reduce the weight of axis body, through being equipped with the axle center reinforcement, can improve the intensity and the stability of axis body, solved the too big difficult problem of shifting and installing of rotor shaft weight.

Description

Rotor shaft of direct-drive wind driven generator

Technical Field

The utility model belongs to the technical field of aerogenerator, especially, relate to a direct drive formula aerogenerator's rotor shaft.

Background

Direct drive formula aerogenerator does not install the speed reducer, in order to guarantee aerogenerator's stability and life, consequently need guarantee the intensity and the stability of rotor shaft, consequently current rotor shaft adopts solid axis body more, nevertheless can cause the too big condition that causes to be difficult to shift and install of weight, and the structure that uses hollow axis body can cause the condition that intensity and stability are not enough, consequently design the rotor shaft that weight is little and can guarantee axis body intensity and stability be the problem that this area staff need solve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a direct drive formula aerogenerator's rotor shaft, through with offering the shaft cavity on the axis body, can reduce the weight of axis body, through being equipped with the axle center reinforcement, can improve the intensity and the stability ability of axis body, solved the too big difficult problem of shifting and installing of rotor shaft weight.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a direct drive formula aerogenerator's rotor shaft, including axis body and axle center reinforcement, the shaft cavity has been seted up in the axis body, an axis body terminal surface is seted up flutedly, the middle part is fixed with solid fixed ring in the recess, the axle center reinforcement includes the sleeve pipe, the intraductal wall of sleeve is fixed with a center pin through a plurality of backup pads, the center pin sets up with the sleeve pipe is concentric, sleeve pipe one end week side is fixed with fixed edge, fixed edge is the same with the recess internal diameter, fixed edge is located the recess inside and fixes at solid fixed ring side through the fastener, sleeve pipe one end week side just is located the position of fixed edge side and has seted up a plurality of operation mouths.

Furthermore, a first reinforcing block is fixed on the opposite side of the joint of the support plate and the central shaft, and a second reinforcing block is fixed on the opposite side of the joint of the support plate and the sleeve.

Further, the cross sections of the first reinforcing block and the second reinforcing block are both triangular structures or trapezoidal structures.

Furthermore, a plurality of partition plates are formed on the sleeve and positioned between the plurality of operation openings, and the partition plates are opposite to the support plate and the partition plates in position.

Further, the fastener includes holding screw, holding screw one end threaded connection has a plurality of nuts, fixed edge and solid fixed ring have seted up a plurality of mounting holes, fixed edge is through fastener and mounting hole and solid fixed ring fixed connection.

Further, a plurality of the fasteners are all located in a plurality of grooves, and the fasteners are opposite to the operation opening.

The utility model discloses following beneficial effect has:

1. the utility model discloses a with offering the shaft cavity on the axis body, can reduce the weight of axis body, convenient to use person's transfer and installation can improve the intensity and the stability of axis body through being equipped with the axle center reinforcement to wholly reduce axis body weight, make things convenient for the installation of rotor shaft.

2. The utility model discloses an offer the recess in axis body axle chamber one side to set up solid fixed ring in the recess, and set up fixed edge in sleeve pipe one end, the location, the installation and the fixed of the axle center reinforcement of being convenient for make things convenient for staff's operation.

3. The utility model discloses a set up the operation mouth on the sleeve, the space that operation mouth and recess formed is convenient for the fastener the installation with demolish, make things convenient for staff's installation.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a rotor shaft of a direct-drive wind power generator according to the present invention;

FIG. 2 is a schematic structural view of a shaft body;

FIG. 3 is a schematic view of an axial stiffener;

in the drawings, the components represented by the respective reference numerals are listed below:

1-shaft body, 2-axial reinforcement, 3-fastener, 101-shaft cavity, 102-groove, 103-fixing ring, 104-mounting hole, 201-sleeve, 202-supporting plate, 203-central shaft, 204-fixing edge, 205-operation opening, 206-first fixing block, 207-second fixing block, 208-partition plate, 301-set screw and 302-nut.

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 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.

Referring to fig. 1-3, the present invention relates to a rotor shaft of a direct-drive wind power generator, which comprises a shaft body 1 and an axis reinforcement member 2;

a shaft cavity 101 is formed in the shaft body 1, a groove 102 is formed in one end face of the shaft body 1, and a fixing ring 103 is fixed in the middle of the groove 102;

the axial reinforcement 2 comprises a sleeve 201, the inner wall of the sleeve 201 is fixed with a central shaft 203 through a plurality of supporting plates 202, and the central shaft 203 and the sleeve 201 are concentrically arranged;

a fixing edge 204 is fixed on the peripheral side surface of one end of the sleeve 201, the inner diameter of the fixing edge 204 is the same as that of the groove 102, and the fixing edge 204 is positioned in the groove 102 and fixed on one side surface of the fixing ring 103 through a fastener 3;

a plurality of operation openings 205 are formed on the peripheral side surface of one end of the sleeve 201 and on one side surface of the fixing edge 204.

As shown in fig. 1 and 3, a first reinforcing block 206 is fixed to the opposite side of the junction of the support plate 202 and the central shaft 203, and a second reinforcing block 207 is fixed to the opposite side of the junction of the support plate 202 and the sleeve 201.

Wherein the first and

second reinforcing blocks

206 and 207 each have a triangular structure or a trapezoidal structure in cross section, as shown in fig. 1 and 3.

As shown in fig. 3, a plurality of partitions 208 are formed on the casing 201 at positions between the plurality of operation ports 205, and the partitions 208 are opposite to the support plate 202 and the partitions 208.

As shown in fig. 1-3, the fastening member 3 includes a set screw 301, one end of the set screw 301 is connected with a plurality of nuts 302 through threads, the fixing edge 204 and the fixing ring 103 are provided with a plurality of mounting holes 104, and the fixing edge 204 is fixedly connected with the fixing ring 103 through the fastening member 3 and the mounting holes 104.

Wherein, as shown in fig. 1 and 3, a plurality of fasteners 3 are positioned in the plurality of grooves 102, the fasteners 3 being opposite to the operation opening 205.

One specific application of this embodiment is: during installation, after one end of the shaft body 1 is installed, the shaft center reinforcing member 2 is taken out, one end of the shaft center reinforcing member 2 is aligned with the shaft cavity 101, the shaft center reinforcing member 2 is transferred into the shaft cavity 101, the shaft center reinforcing member 2 is moved, one side face of the fixing edge 204 is attached to one side face of the fixing ring 103, the fastener 3 is taken out, one end of the set screw 301 penetrates through the fixing edge 204 and the mounting hole 104 in the fixing ring 103 to be moved to the inner side of the fixing ring 103, and the nut 302 is taken out by a user and installed on the set screw 301 through a space formed by the operation hole 205 and.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a direct drive formula aerogenerator's rotor shaft, includes axis body (1), its characterized in that: the device also comprises an axis reinforcement (2);

a shaft cavity (101) is formed in the shaft body (1), a groove (102) is formed in one end face of the shaft body (1), and a fixing ring (103) is fixed in the middle of the groove (102);

the axial center reinforcing member (2) comprises a sleeve (201), a central shaft (203) is fixed on the inner wall of the sleeve (201) through a plurality of supporting plates (202), and the central shaft (203) and the sleeve (201) are arranged concentrically;

a fixing edge (204) is fixed on the peripheral side surface of one end of the sleeve (201), the inner diameter of the fixing edge (204) is the same as that of the groove (102), and the fixing edge (204) is positioned in the groove (102) and fixed on one side surface of the fixing ring (103) through a fastener (3);

and a plurality of operation ports (205) are formed in the peripheral side surface of one end of the sleeve (201) and positioned on one side surface of the fixing edge (204).

2. A rotor shaft of a direct drive wind turbine according to claim 1, characterized in that the support plate (202) is fixed with first reinforcing blocks (206) on opposite sides of the connection with the central shaft (203), and the support plate (202) is fixed with second reinforcing blocks (207) on opposite sides of the connection with the sleeve (201).

3. The rotor shaft of a direct drive wind turbine as claimed in claim 2, wherein the first and second reinforcing blocks (206, 207) are each triangular or trapezoidal in cross-section.

4. The rotor shaft of a direct drive wind turbine according to claim 1, characterized in that the bushings (201) form partitions (208) at locations between the handling openings (205), the partitions (208) being located opposite the support plates (202) and the partitions (208).

5. The rotor shaft of the direct-drive wind driven generator according to claim 1, wherein the fastening member (3) comprises a set screw (301), one end of the set screw (301) is connected with a plurality of nuts (302) in a threaded manner, a plurality of mounting holes (104) are formed in the fixing edge (204) and the fixing ring (103), and the fixing edge (204) is fixedly connected with the fixing ring (103) through the fastening member (3) and the mounting holes (104).

6. A rotor shaft of a direct drive wind turbine according to claim 1, characterized in that a number of said fastening members (3) are located in a number of recesses (102), said fastening members (3) being opposite to the operation opening (205).