CN219034914U

CN219034914U - Connecting rod assembly for wind generating set

Info

Publication number: CN219034914U
Application number: CN202223503800.4U
Authority: CN
Inventors: 张璞; 张玲; 李楠; 王明华
Original assignee: Deyang Linkage Testing Technology Co ltd
Current assignee: Deyang Linkage Testing Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-05-16
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a connecting rod assembly for a wind generating set, which comprises two sleeves and a connecting rod, wherein the two sleeves are respectively arranged at two ends of the connecting rod, the axes of the two sleeves are perpendicular to the central line of the length direction of the connecting rod, and the different surfaces of the axes of the two sleeves are perpendicular; an inner bushing is arranged in each sleeve, and a gasket assembly is arranged between the outer wall of the inner bushing and the inner wall of the sleeve. The elastic deformation and the relative rotation of the inner bushing and the gasket assembly are used for compensating the relative deflection of the two shafts connected by the coupler, and the coupler has the advantages of high connection strength and stable connection.

Description

Connecting rod assembly for wind generating set

Technical Field

The utility model relates to the field of wind driven generator couplings, in particular to a connecting rod assembly for a wind driven generator set.

Background

The shaft coupling is used as a key component in a transmission system of the wind generating set, and the functions of the shaft coupling are mainly as follows: connecting a high-speed shaft of a gearbox and a generator shaft, transmitting power, buffering and damping, fault tolerance of a shafting, electric insulation, moment overload protection and the like. The existing wind generating set uses a diaphragm type coupler, the main component on the coupler for connecting a gearbox high-speed shaft and a generator shaft is a bolt, namely the coupler is connected to a diaphragm through the bolt, and the diaphragm is connected to the gearbox and the generator shaft.

Disclosure of Invention

The utility model aims to provide a connecting rod assembly for a wind generating set, which realizes compensation digestion by rotating an inner bushing and a gasket assembly in the connecting rod assembly around the axis of the connecting rod assembly and deforming an elastic body, and has the advantages of high connection strength and stable connection.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the connecting rod assembly for the wind generating set comprises two sleeves and a connecting rod, wherein the two sleeves are respectively arranged at two ends of the connecting rod, the axes of the two sleeves are perpendicular to the central line of the length direction of the connecting rod, and the different surfaces of the axes of the two sleeves are perpendicular; an inner bushing is arranged in each sleeve, and a gasket assembly is arranged between the outer wall of the inner bushing and the inner wall of the sleeve. The relative misalignment (i.e., axial, radial, and angular misalignment) of the two shafts (i.e., the gearbox-side high speed shaft and the generator-side motor shaft) connected by the coupling is compensated for by the elastic deformation and relative rotation of the inner bushing and the washer assembly.

Further, one of the gasket assemblies in the sleeve comprises three arc-shaped butterfly gaskets, the three arc-shaped gaskets are sequentially stacked and located between the outer wall of the inner bushing and the inner wall of the sleeve, a first backing ring is attached to the upper end of the three arc-shaped gaskets, and an O-shaped sealing ring is further arranged on the butterfly gaskets attached to the sleeve. The elastic deformation of the arc-shaped gasket is used for compensation, the arc-shaped gasket is high in rigidity and high in buffering and shock absorbing capacity, and can bear a large load with small deformation.

Further, the gasket assembly in the other sleeve comprises a straight barrel type gasket, and the upper end of the straight barrel type gasket is attached with a second gasket ring. The straight barrel washers facilitate compensation by relative rotation.

Further, the lower end face of the inner bushing is of a bump structure. When the connecting rod assembly is connected with other assemblies of the wind driven generator, the axial movement of the inner bushing can be effectively prevented through the lug structure, and the stability of the connecting rod assembly during operation is ensured.

Further, the cross section of the connecting rod is I-shaped. The two sleeves are connected through the I-shaped connecting rod, and the weight of the connecting rod can be effectively reduced on the premise of ensuring the connection strength of the two sleeves, so that the working stability is improved;

compared with the prior art, the utility model has the advantages that:

compensating for relative misalignment (i.e., axial, radial, and angular misalignment) of the two shafts (i.e., the gearbox-side high speed shaft and the generator-side motor shaft) connected by the coupling by elastic deformation and relative rotation of the inner bushing and the washer assembly;

when the connecting rod assembly is connected with other assemblies of the wind driven generator, the bump structure can effectively prevent the axial movement of the inner bushing, and the stability of the connecting rod assembly during operation is ensured;

the two sleeves are connected through the I-shaped connecting rod, and the weight of the connecting rod can be effectively reduced on the premise of ensuring the connection strength of the two sleeves, so that the working stability is improved.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a view D-D of FIG. 1;

fig. 3 is A-A view of fig. 1.

In the figure: 1. a sleeve; 2. a connecting rod; 3. an inner liner; 4. butterfly washers; 5. an O-shaped sealing ring; 6. a first backing ring; 7. straight cylinder type gasket; 8. a second backing ring; 9. bump structure.

Detailed Description

The present utility model will be further described below.

Examples: as shown in fig. 1, a connecting rod assembly for a wind generating set comprises a sleeve 1 and a connecting rod 2, wherein the sleeve 1 is hollow and cylindrical and is provided with two sleeves, one sleeve 1 is arranged at one end of the connecting rod 2, and the outer wall of the sleeve 1 is fixedly connected with the end head of the connecting rod 2 and is used for being connected with a gear box or a generator box in the wind generating set; the other sleeve 1 is arranged at the other end of the connecting rod 2, and the outer wall of the sleeve 1 is fixedly connected with the end head of the connecting rod 2 and is used for being connected with a coupler in a wind generating set; the axes of the two sleeves 1 are perpendicular to the central line of the connecting rod 2 in the length direction, and the different planes of the axes of the two sleeves 1 are perpendicular; the two sleeves 1 are respectively provided with an inner bushing 3, a gasket assembly is further arranged between the outer wall of the inner bushing 3 and the inner wall of the sleeve 1, and the relative deflection (axial, radial and angular deflection) of two shafts (namely a high-speed shaft on the gear box side and a motor shaft on the generator side) connected by the coupler is compensated through the elastic deformation and relative rotation of the inner bushing 3 and the gasket assembly 3.

Specifically, the gasket assembly in the sleeve 1 connected with the generator shaft or the high-speed shaft comprises three arc butterfly gaskets 4, the compensation is carried out through the elastic deformation of the arc gaskets 4, and the arc gaskets 4 have the advantages of high rigidity, high buffering and shock absorbing capacity and capability of bearing large load with small deformation; the variable stiffness characteristic is provided, and the variable stiffness characteristic has a wide range of nonlinear characteristics; when the butterfly gaskets are overlapped, the more the butterfly gaskets 4 are, the larger the load is, wherein the butterfly gaskets 4 attached to the sleeve 1 are also provided with O-shaped sealing rings 5, and the O-shaped sealing rings are positioned between the butterfly gaskets 4 and the inner wall of the sleeve 1; the upper end face of the butterfly washer 4 is attached with a first backing ring 6, and when a bolt is inserted into the inner bushing 3, the butterfly washer 4 is protected through the first backing ring 6, and the butterfly washer 4 is tightly pressed.

Specifically, the gasket assembly in the sleeve 1 connected with the coupling comprises a straight barrel gasket 7, the straight barrel gasket 7 is favorable for compensating through relative rotation, a second backing ring 8 is attached to the upper end of the straight barrel gasket 7, the straight barrel gasket 7 is protected through the second backing ring 8, and the straight barrel gasket 7 is compressed.

Specifically, the lower terminal surface of inner liner 3 is the lug structure, when being connected link assembly and other subassemblies of aerogenerator, can effectively prevent the axial displacement of inner liner 3 through this lug structure 9, guarantee the stability of link assembly during operation.

Specifically, the cross section of the connecting rod 2 is I-shaped, the two sleeves 1 are connected through the I-shaped connecting rod 2, and the weight of the connecting rod 2 can be effectively reduced on the premise of ensuring the connection strength of the two sleeves, so that the working stability is improved.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present utility model and the core ideas thereof; also, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A connecting rod assembly for a wind turbine generator system, characterized by: the connecting rod comprises two sleeves and a connecting rod, wherein the two sleeves are respectively arranged at two ends of the connecting rod, the axes of the two sleeves are perpendicular to the central line of the length direction of the connecting rod, and the different surfaces of the axes of the two sleeves are perpendicular; an inner bushing is arranged in each sleeve, and a gasket assembly is arranged between the outer wall of the inner bushing and the inner wall of the sleeve.

2. A connecting rod assembly for a wind turbine generator set according to claim 1, wherein: one of the gasket assemblies in the sleeve comprises three arc-shaped butterfly gaskets, the three arc-shaped gaskets are sequentially stacked and located between the outer wall of the inner bushing and the inner wall of the sleeve, a first backing ring is attached to the upper end of the three arc-shaped gaskets, and an O-shaped sealing ring is further arranged on the butterfly gaskets attached to the sleeve.

3. A connecting rod assembly for a wind turbine generator system according to claim 2, wherein: the other gasket assembly in the sleeve comprises a straight barrel type gasket, and the upper end of the straight barrel type gasket is attached with a second gasket ring.

4. A connecting rod assembly for a wind turbine generator set according to claim 1, wherein: the lower end face of the inner bushing is of a bump structure.

5. A connecting rod assembly for a wind turbine generator set according to claim 1, wherein: the cross section of the connecting rod is I-shaped.