阅读说明：本技术 风力发电机组底座自锁式可折叠楔形垫块装置 (Self-locking foldable wedge-shaped cushion block device of wind generating set base ) 是由 李健 唐杜梅 于 2019-10-24 设计创作，主要内容包括：本发明设计了一种风力发电机组底座自锁式可折叠楔形垫块,属于风力发电机技术领域。楔形垫块包括底座、发电机弹性支撑和楔形垫块,所述楔形垫块包括上楔形垫块和下楔形垫块,上下楔形垫块采用同一种结构,所述下楔形垫块与底座相连,上楔形垫块与发电机弹性支撑底面相连,所述上楔形垫块的斜面置于下楔形垫块的斜面上。通过本发明设计的风力发电机组底座自锁式可折叠楔形垫块,结构简单,可折叠,便于携带,楔形块的角度在摩擦角的范围内,支撑结构始终保持在平衡状态下,发生自锁现象,提高了调节的可靠性；粗调上下楔形块搭接垫块数可以大幅度调节垫块高度,微调上楔形块,就能满足使用过程中的小调节量的要求,提高调整的工作速度和准确性。(The invention designs a self-locking foldable wedge-shaped cushion block for a base of a wind generating set, and belongs to the technical field of wind generators. The wedge-shaped cushion block comprises a base, a generator elastic support and a wedge-shaped cushion block, the wedge-shaped cushion block comprises an upper wedge-shaped cushion block and a lower wedge-shaped cushion block, the upper wedge-shaped cushion block and the lower wedge-shaped cushion block are of the same structure, the lower wedge-shaped cushion block is connected with the base, the upper wedge-shaped cushion block is connected with the bottom surface of the generator elastic support, and the inclined surface of the upper wedge-shaped cushion block is arranged on the inclined surface of the lower wedge-. The self-locking foldable wedge-shaped cushion block of the base of the wind generating set, which is designed by the invention, has the advantages of simple structure, folding and convenient carrying, the angle of the wedge-shaped block is within the range of a friction angle, and the supporting structure is always kept in a balanced state, so that the self-locking phenomenon is generated, and the reliability of adjustment is improved; the height of the cushion block can be adjusted by roughly adjusting the number of the overlapping cushion blocks of the upper wedge-shaped block and the lower wedge-shaped block, the requirement of small adjustment amount in the using process can be met by finely adjusting the upper wedge-shaped block, and the working speed and accuracy of adjustment are improved.)

1. The utility model provides a wind generating set base is from collapsible wedge cushion device of locking-type which characterized in that: the wedge-shaped cushion block device comprises an upper wedge-shaped cushion block and a lower wedge-shaped cushion block, the lower wedge-shaped cushion block is connected with the base, the upper wedge-shaped cushion block is connected with the bottom surface of the elastic support of the generator, and the inclined surface of the upper wedge-shaped cushion block is arranged on the inclined surface of the lower wedge-shaped cushion block.

2. The self-locking foldable wedge-shaped cushion block device of the base of the wind generating set according to claim 1, characterized in that: the upper wedgeThe shape cushion block and the lower wedge-shaped cushion block adopt the same foldable structure and comprise horizontal steel plates, vertical steel plate groups and oblique steel plates, each vertical steel plate group is formed by hinging at least 2 steel plates formed by top-down, the hinging position is positioned on the outer side wall of each two adjacent steel plates, the bottom end surface of the steel plate positioned above the two adjacent steel plates is completely attached to the top end surface of the steel plate positioned below the vertical steel plate group, one end surface of each steel plate, which faces the oblique steel plate, is alpha with the included angle in the horizontal direction, the distance from the central point of the inclined plane to the horizontal steel plate is H, and the length of the horizontal steel plate is L, so

The two ends of the horizontal steel plate are hinged to the vertical steel plate group and the inclined steel plate respectively, one end, hinged to the horizontal steel plate, of the inclined steel plate is far away from one end, hinged to the horizontal steel plate, of the inclined steel plate, one end, hinged to the horizontal steel plate, of the vertical steel plate group is far away from one end, hinged to the horizontal steel plate, of the inclined steel plate, the end.

3. The self-locking foldable wedge-shaped cushion block device of the base of the wind generating set according to claim 1, characterized in that: the angle of the inclined steel plates of the upper wedge-shaped cushion block and the lower wedge-shaped cushion block is equal each time, and the angle of the inclined steel plates is within the range of the friction angle of the overlapped surfaces of the upper wedge-shaped cushion block and the lower wedge-shaped cushion block.

Technical Field

The invention belongs to the field of wind generating sets, and particularly relates to a base self-locking type foldable wedge-shaped cushion block device for supporting and centering a wind driven generator.

Background

The wind driven generator is generally installed in a nacelle, and when the wind driven generator is installed, a rotating shaft of the generator needs to be coaxially connected with a high-speed transmission shaft of a gearbox. Because the limit of the adjusting height of the elastic support of the generator is not enough to adapt to the installation and adjustment requirements of the wind driven generator, after the elastic support of the generator is used for a long time, the vertical adjusting amount is not enough, and only a cushion block is added at the bottom of the elastic support or a new elastic support is replaced. However, due to the narrow space in the cabin, the operation of workers in the cabin is very inconvenient, the work efficiency is difficult to improve, and the cushion blocks used in the installation and maintenance processes need to be specially customized, so that the centering work of the rotating shaft of the generator and the high-speed transmission shaft of the gear box is complicated, and the maintenance time is long; the direct replacement of the new spring support would again result in increased maintenance costs.

Therefore, it is necessary to develop a self-locking foldable wedge-shaped cushion block device for supporting and centering a wind driven generator to meet the use requirements of the wind driven generator.

Disclosure of Invention

Aiming at the technical problems, the invention provides a self-locking foldable wedge-shaped cushion block device of a wind driven generator base, which has the advantages of large height adjusting range, convenient adjustment and high reliability, and meets the alignment requirement of a rotating shaft of a generator and a high-speed transmission shaft of a gear box by changing the form of the cushion block device of the base:

in order to realize the purpose of the invention, the technical scheme is as follows:

the self-locking foldable wedge-shaped cushion block device comprises a base, a generator elastic support and a wedge-shaped cushion block device, wherein the wedge-shaped cushion block device comprises an upper wedge-shaped cushion block and a lower wedge-shaped cushion block, the lower wedge-shaped cushion block is connected with the base, the upper wedge-shaped cushion block is connected with the bottom surface of the generator elastic support, and the inclined surface of the upper wedge-shaped cushion block is arranged on the inclined surface of the lower wedge-shaped cushion block.

Furthermore, the upper wedge-shaped cushion block and the lower wedge-shaped cushion block adopt the same foldable structure and respectively comprise a horizontal steel plate (namely a horizontally arranged steel plate), a vertical steel plate group (namely a steel plate for supporting in the vertical direction) and an inclined steel plate (namely an obliquely arranged steel plate), wherein the vertical steel plate group is composed of at least 2 steel plates which are hinged from top to bottom, the hinged position is positioned on the outer side wall of two adjacent steel plates, the bottom end surface of the steel plate positioned above the two adjacent steel plates is completely attached to the top end surface of the steel plate positioned below the two adjacent steel plates, the included angle between the end surface of one end of each steel plate facing the inclined steel plate and the horizontal direction is alpha, the distance from the center point of the inclined plane to the horizontal steel plate is H, the length of the horizontal steel plate is L, and then tan alpha is H/L, so that the end face of the steel plate can still be completely attached to the surface of the inclined steel plate after the height is adjusted, and the steel plate is convenient to firmly support. The two ends of the horizontal steel plate are hinged with the vertical steel plate group and the inclined steel plate through second hinges respectively, one end, hinged with the horizontal steel plate, of the inclined steel plate is far away from one end, hinged with the horizontal steel plate, of the inclined steel plate, one end, hinged with the horizontal steel plate, of the inclined steel plate is far away from one end, hinged with the horizontal steel plate, of the vertical steel plate group, of the inclined.

The upper wedge-shaped cushion block and the lower wedge-shaped cushion block adopt the same foldable structure and respectively comprise a horizontal steel plate, a vertical steel plate group and an inclined steel plate,

furthermore, the angle of the inclined steel plates of the upper wedge-shaped cushion block and the lower wedge-shaped cushion block is equal each time, and the angle of the inclined steel plates is within the range of the friction angle of the overlapped surfaces of the upper wedge-shaped cushion block and the lower wedge-shaped cushion block.

Compared with the prior art, the invention has the following advantages:

the self-locking foldable wedge-shaped cushion block device for the base of the wind generating set has the advantages that the structure is simple, the device is foldable, the included angle between the inclined steel plates of the upper wedge-shaped block and the lower wedge-shaped block and the horizontal plane is in the range of a friction angle, the supporting structure is always self-locked to keep a balance state, and the reliability of connection is improved; the height of the wedge-shaped cushion block device can be adjusted greatly by roughly adjusting the number of the rectangular steel plates lapped by the upper wedge block and the lower wedge block, the requirement of small adjustment amount in the use process can be met by finely adjusting the upper wedge block, and the speed and the accuracy of adjustment work are improved.

Drawings

FIG. 1 is a schematic view of the assembly of the wedge-shaped spacer block device and the generator elastically supported on the base of the rear cabin.

Fig. 2 is an assembly schematic view (front view direction) of the wedge-shaped cushion block device and the generator elastically supported on the base of the rear cabin.

FIG. 3 is an enlarged view of the assembly of the wedge-shaped spacer block device and the generator of FIG. 2 elastically supported on the base of the rear nacelle.

FIG. 4 is a three-dimensional view of a wedge block assembly provided by the present invention;

FIG. 5 is a schematic view of a wedge-shaped spacer block device of the wedge-shaped spacer block provided by the present invention;

in the figure, 1 — the aft nacelle base; 2-wedge shaped cushion block device; 2-1-horizontal steel plate; 2-2-oblique steel plate; 2-3-vertical steel plate group; 2-3-1-steel plate; 3-elastic support of the generator; 4, a first hinge; and 5, a second hinge.

Detailed Description

The invention is described in more detail below with reference to the following examples:

as shown in fig. 1 to 3, the self-locking foldable wedge-shaped cushion block device for the base of the wind generating set provided by the invention comprises a base 1, a wedge-shaped cushion block device 2 and a generator elastic support 3, wherein the wedge-shaped cushion block 2 comprises an upper wedge-shaped cushion block and a lower wedge-shaped cushion block, the lower wedge-shaped cushion block is connected with the base 1, the upper wedge-shaped cushion block is connected with the bottom surface of the generator elastic support 3, and the inclined surface of the upper wedge-shaped cushion block is arranged on the inclined surface of the lower wedge-shaped cushion block.

In the above embodiment, as shown in fig. 4 and 5, the upper wedge-shaped cushion block and the lower wedge-shaped cushion block adopt the same structure, and the angle of the inclined plane of each adjustment of the upper wedge-shaped cushion block and the lower wedge-shaped cushion block is equal. The utility model discloses a steel plate, including the bottom of going up wedge cushion and lower wedge cushion, including horizontal steel plate, vertical steel plate group and oblique steel plate, vertical steel plate group comprises 4 top-down through a hinge articulated steel sheet, and articulated position is located the lateral wall of two adjacent steel plates, and the bottom terminal surface that lies in the steel plate of top in two adjacent steel plates laminates completely with the top terminal surface that lies in the steel plate of below, and the one end terminal surface of every steel plate orientation oblique steel plate is alpha with the contained angle of horizontal direction, and this inclined plane central point is H to the distance of horizontal steel plate, and the length of this horizontal steel plate is L, then tan alpha ═ H/L. The angle of the inclined steel plates of the upper wedge-shaped cushion block and the lower wedge-shaped cushion block is equal each time, and the angle of the inclined steel plates is within the range of the friction angle of the overlapped surfaces of the upper wedge-shaped cushion block and the lower wedge-shaped cushion block. Two ends of the horizontal steel plate 2-1 are hinged with the vertical steel plate group 2-3 and the inclined steel plate 2-2 through a second hinge 5 respectively, one end, far away from the horizontal steel plate 2-1, of the inclined steel plate 2-2 is lapped with one end, far away from the horizontal steel plate 2-1, of the vertical steel plate group 2-3, of the inclined steel plate 2-1, of the inclined steel plate, and the lapping surfaces are limited through friction force.

As shown in figure 5, if the static friction factor of the contact surfaces of the upper wedge-shaped cushion block and the lower wedge-shaped cushion block is 0.4, the self-locking phenomenon can occur when the angle of the wedge block is within the range of 21.8 degrees, and simultaneously, the height of the vertical steel plate group of the upper wedge-shaped block and the height of the vertical steel plate group of the lower wedge-shaped block can be adjusted greatly through rough adjustment. The specific method for reducing the height of the wedge-shaped cushion block device 2 comprises the following steps: firstly, adjusting a lower wedge-shaped cushion block: the steel plate at the top is pulled out leftwards and is turned and folded, so that the top end face of the steel plate 2-3-1 below the steel plate is lapped on the inclined steel plate 2-2. Then adjusting the upper wedge-shaped cushion block: the steel plate 2-3-1 at the bottom is pulled out rightwards and is turned and folded, so that the bottom end face of the steel plate 2-3-1 above the steel plate is lapped on the inclined steel plate 2-2.

The wedge block is finely adjusted, so that the requirement of small adjustment amount in the use process can be met, and the speed and the accuracy of adjustment work are improved. Specifically, the support height of the wedge-shaped cushion block device is adjusted by pushing up or moving down the inclined steel plate of the lower wedge-shaped cushion block. The above description is only a preferred embodiment, but the scope of the present invention is not limited thereto.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.