阅读说明：本技术 一种大型风力发电机转子静平衡检测方法 (Static balance detection method for rotor of large wind driven generator ) 是由 李金非 陈国旗 徐海阳 段灿明 黄诗进 王伟 于 2021-08-12 设计创作，主要内容包括：本发明涉及风力发电机技术领域,本发明公开了一种大型风力发电机转子静平衡检测方法,包括转子、基座、支撑梁、轴承座、心轴和限位装置,所述支撑梁连接在基座上方,所述轴承座连接在支撑梁上部,所述心轴与转子同轴设置,所述心轴设置在轴承座上,所述限位装置位于轴承座侧方,所述限位装置连接在支撑梁上,本发明的优点在于：1、结构简单、设计巧妙,便于工业制造和大范围推广使用；2、部件之间多采用螺栓活动连接,便于拆装；3、操作简单,便于工人操作,提升工作效率；4、能够精确测量转子静不平衡量及不平衡位置。(The invention relates to the technical field of wind driven generators, and discloses a static balance detection method for a large wind driven generator rotor, which comprises a rotor, a base, a supporting beam, a bearing seat, a mandrel and a limiting device, wherein the supporting beam is connected above the base, the bearing seat is connected to the upper part of the supporting beam, the mandrel and the rotor are coaxially arranged, the mandrel is arranged on the bearing seat, the limiting device is positioned on the side of the bearing seat, and the limiting device is connected to the supporting beam, and the static balance detection method for the large wind driven generator rotor has the advantages that: 1. the structure is simple, the design is ingenious, and the industrial manufacture and the large-scale popularization and use are convenient; 2. the parts are movably connected by bolts, so that the assembly and disassembly are convenient; 3. the operation is simple, the operation of workers is convenient, and the working efficiency is improved; 4. the static unbalance amount and the unbalance position of the rotor can be accurately measured.)

1. The utility model provides a large-scale aerogenerator rotor static balance detection method, adopts a static balance device to accomplish the detection, and this static balance device includes rotor (5), base (1), supporting beam (2), bearing frame (3), mandrel (4) and stop device (6), supporting beam (2) are connected in base (1) top, bearing frame (3) are connected in supporting beam (2) upper portion, mandrel (4) and rotor (5) coaxial setting, mandrel (4) set up on bearing frame (3), stop device (6) are located bearing frame (3) side, stop device (6) are connected on supporting beam (2), its characterized in that, the detection method includes following step:

firstly, hoisting a mandrel (4) above a rotor (5), connecting an outer flange of the mandrel (4) with an inner flange of the rotor (5), and ensuring that the mandrel and the rotor are coaxially arranged through a reserved matching spigot, and pre-assembling the devices into a whole;

secondly, hoisting the two support beams (2) above the base (1), respectively hoisting the two bearing seats (3) above the support beams (2), connecting the bearing seats (3) with the support beams (2) and assembling the two support beams into a whole II, wherein the two whole II are symmetrically distributed, and the centers of the two bearing seats (3) are coaxial and equal in height by adjusting the distance between the two whole II;

step three, turning the whole body by 90 degrees through a reserved lifting lug hole on the mandrel (4);

hoisting the integral I to the upper part of the integral II by a crane, placing the shaft end of the mandrel (4) between two rolling shafts on the bearing seat (3), and limiting the mandrel (4) by an adjustable bolt on a limiting device (6);

and fifthly, the rotor (5) is turned, the rotor (5) is observed after one rotation of the rotor (5) is more than one turn, the downward position of the rotor (5) is recorded, the vertical section of the position is an unbalanced surface, the weight of the upper part of the rotor (5) on the vertical section is balanced, and the unbalance of the rotor (5) can be determined by adjusting the weight of the balancing weight.

Technical Field

The invention relates to the technical field of wind driven generators, in particular to a static balance detection method for a large wind driven generator rotor.

Background

With the continuous development and progress of the wind driven generator technology, the wind driven generator set is gradually enlarged, and the outer diameter size of the matched wind driven generator rotor is gradually increased. After the rotor is machined, the rotor needs to be subjected to static balance correction, but the difficulty of static balance is increased due to the large size and high weight of the rotor of the large-scale wind driven generator.

Disclosure of Invention

The invention provides a static balance detection method for a large-scale wind driven generator rotor aiming at the defects in the prior art, and aims to solve the problems in the prior art.

In order to solve the technical problem, the invention is solved by the following technical scheme:

a static balance detection method for a large-scale wind driven generator rotor adopts a static balance device to complete detection, the static balance device comprises a rotor, a base, a supporting beam, a bearing seat, a mandrel and a limiting device, the supporting beam is connected above the base, the bearing seat is connected to the upper part of the supporting beam, the mandrel and the rotor are coaxially arranged, the mandrel is arranged on the bearing seat, the limiting device is positioned on the side of the bearing seat, the limiting device is connected on the supporting beam, and the detection method comprises the following steps:

firstly, hoisting a mandrel above a rotor, connecting an outer flange of the mandrel with an inner flange of the rotor, and ensuring that the mandrel and the rotor are coaxially arranged through a reserved matching seam allowance, and pre-assembling the devices into a whole;

hoisting two support beams above the base, respectively hoisting two bearing seats above the support beams, connecting the bearing seats with the support beams and assembling the bearing seats and the support beams into a whole II, wherein the two whole II are symmetrically distributed, and the centers of the bearing seats are coaxial and equal in height by adjusting the distance between the two whole II;

step three, turning the whole body by 90 degrees through a reserved lifting lug hole on the mandrel;

hoisting the integral I to the upper part of the integral II by a crane, placing the shaft end of the mandrel between two rolling shafts on a bearing seat, and limiting the mandrel by an adjustable bolt on a limiting device;

and fifthly, the rotor is coiled, the rotor rotates more than one circle at a time, the rotor is observed, the downward position of the rotor is recorded, the vertical section of the position is an unbalanced surface, the upper part of the rotor at the vertical section is balanced, and the unbalance of the rotor can be determined by adjusting the weight of the balancing weight.

The invention has the advantages that:

1. the structure is simple, the design is ingenious, and the industrial manufacture and the large-scale popularization and use are convenient;

2. the parts are movably connected by bolts, so that the assembly and disassembly are convenient;

3. the operation is simple, the operation of workers is convenient, and the working efficiency is improved;

4. the static unbalance amount and the unbalance position of the rotor can be accurately measured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.

FIG. 1 is a schematic diagram of the present invention.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments described herein without the need for inventive work, are within the scope of the present invention.

As shown in fig. 1, a static balance detection method for a large-scale wind driven generator rotor adopts a static balance device to complete detection, the static balance device comprises a rotor, a base, a supporting beam, a bearing seat, a mandrel and a limiting device, the supporting beam is connected above the base, the bearing seat is connected on the upper portion of the supporting beam, the mandrel and the rotor are coaxially arranged, the mandrel is arranged on the bearing seat, the limiting device is located on the side of the bearing seat, the limiting device is connected on the supporting beam, and the detection method comprises the following steps:

firstly, hoisting a mandrel 4 above a rotor 5, connecting an outer flange of the mandrel 4 with an inner flange of the rotor 5, and ensuring that the mandrel 4 and the rotor are coaxially arranged through a reserved matching spigot, and pre-assembling the devices into a whole;

secondly, hoisting the two support beams 2 above the base 1, hoisting the two bearing seats 3 above the support beams 2 respectively, connecting the bearing seats 3 with the support beams 2 and assembling the two whole bodies into a whole body II, wherein the two whole bodies II are symmetrically distributed, and the centers of the bearing seats 3 are coaxial and equal in height by adjusting the distance between the two whole bodies II;

step three, turning the whole body by 90 degrees through a lifting lug hole reserved on the mandrel 4;

hoisting the integral I to the upper part of the integral II by a crane, placing the shaft end of the mandrel 4 between two rolling shafts on the bearing seat 3, and limiting the mandrel 4 by an adjustable bolt on the limiting device 6;

and fifthly, the rotor 5 is turned, the rotor 5 rotates more than one circle once, the rotor 5 is observed, the downward position of the rotor 5 is recorded, the vertical section of the position is an unbalanced surface, the weight of the upper part of the rotor 5 on the vertical section is balanced, and the unbalance of the rotor 5 can be determined by adjusting the weight of the balancing weight.

What need supplement is, base 1 passes through bolt horizontal connection with ground, the quantity of a supporting beam 2 is two, two a supporting beam 2 symmetry sets up on base 1, a supporting beam 2's bottom flange passes through bolt fixed connection with base 1, the bottom flange of bearing frame 3 passes through bolt fixed connection with a supporting beam 2 top, be equipped with two rollers on the bearing frame 3, the outside flange of mandrel 4 and the inside flange coaxial coupling of rotor 5, the axle head at mandrel 4 both sides is circular, the axle head of mandrel 4 sets up between two rollers, stop device 6 sets up in the side of mandrel 4.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.