CN211569867U - Wind turbine generator system becomes oar bearing hoist - Google Patents

Abstract

The utility model discloses a wind turbine generator system becomes oar bearing hoist, major structure are the hanging beam, in the left side of hanging beam, under and the right side, have the hanging seat respectively, have the connecting seat in the last plane of hanging beam, and threaded hole is opened to the connecting seat. The utility model discloses it is safe convenient, assembly efficiency is high to become oar bearing hoist. The lifting appliance and the bearing are connected in a two-side mode, so that the bearing is prevented from deforming in the lifting process; the bearing can be turned over, and the variable pitch bearing is turned over from a flat state to a vertical state; the bearing can be ensured to be in a vertical state in the hoisting process, and the bearing cannot incline, so that the bearing and the hub are attached and installed without a gap; is suitable for hoisting a large bearing.

Description

Wind turbine generator system becomes oar bearing hoist

Technical Field

The utility model relates to a wind generating set technical field especially relates to a wind turbine generator system becomes oar bearing hoist.

Background

Wind power is taken as a clean renewable energy source, in recent years, the wind power bearing has more and more attention in the world, the development pace is faster and faster, and the demand on the wind power bearing is increased day by day. Because the wind driven generator has a severe service environment and high maintenance cost, the main machine provides very high requirements for the service life of the wind power bearing. The performance and the service life of the wind power bearing are related to the machining precision of the bearing, the installation of the bearing plays a vital role, and the correct installation is a powerful guarantee for ensuring the precision and the performance of the bearing, prolonging the service life of the bearing and enabling the wind power main engine to stably run for a long time.

The variable pitch bearing is an oversize turntable bearing, and consists of a ferrule, a rolling body, a sealing element, a retainer or an isolation block like a common turntable bearing, wherein the inner ring of the variable pitch bearing is provided with transmission teeth, and torque is transmitted by meshing with a pinion matched with a hub. The variable pitch bearing is mounted by sleeving and fixing the bearing outer ring on the corresponding hub base through the connecting bolt. Because the size of the bearing is large, the weight is heavy, and the snare is easy to deform if the bearing is not properly installed, certain technical requirements are met in the installation process.

In the prior art, some of the variable-pitch bearings are installed on a variable-pitch bearing by using lifting bolts and are directly lifted by using lifting belts for assembly; some adopted hoisting devices are mainly single-point hoisting devices, namely the hoisting devices are installed in holes of the inner ring of the variable-pitch bearing through connecting bolts, hoisting holes are formed in the upper side of the hoisting devices, and in the process that the bearing is gradually moved to the hub base from the horizontal state to the vertical state, the hoisting center position cannot be guaranteed by the hoisting device structure, the bearing is inclined towards the installation surface of the hub, and the assembly difficulty is increased for the gapless fitting of the variable-pitch bearing and the hub. With the development of a wind generating set to large megawatts, the pitch bearing is also larger and larger, the devices are unsafe to a certain extent because of single-side stress, the pitch bearing is likely to deform in the hoisting process, the assembly is difficult, and the working efficiency is low. Some of the lifting bolts are arranged on the variable-pitch bearing and are directly lifted by the lifting belts for assembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wind turbine generator system becomes oar bearing hoist, the technical scheme of the utility model as follows:

the utility model provides a wind turbine generator system becomes oar bearing hoist, major structure is the hanging beam, has the hanging seat respectively on the left side of hanging beam, under and the right side, has the connecting seat on the last plane of hanging beam, and threaded hole is opened to the connecting seat, and the fastening bolt of corresponding size can be installed to the plane average arrangement on the connecting seat to the threaded hole.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts, wherein:

fig. 1 is the utility model discloses a wind turbine generator system becomes oar bearing sling's front view.

Fig. 2 is the utility model discloses a wind turbine generator system becomes oar bearing sling's top view.

Fig. 3 is a schematic view of a horizontal state of a wind turbine generator pitch bearing lifting tool provided with a pitch bearing.

Fig. 4 is a schematic view of a vertical state of a wind turbine generator pitch bearing lifting tool provided with a pitch bearing.

In the figure: the device comprises a hanging beam 1, a hanging seat 2, a connecting seat 3, a reinforcing rib 4, a pitch-variable bearing 5, a bolt 6, a nut 7 and a washer 8.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. 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.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, the utility model discloses a wind turbine generator system becomes oar bearing sling main part is hanging beam 1, has arranged hanging seat 2 respectively in the left side of hanging beam 1, under and the right side for hoisting equipment is connected with hanging seat 2 of three under the different situation, lifts by crane from this and installs the utility model discloses a wind turbine generator system becomes oar bearing 5 on the oar bearing sling.

A connecting seat 3 is arranged on the upper plane of the hanging beam 1, a plurality of threaded holes which are evenly distributed are formed in the connecting seat 3, and a variable-pitch bearing 5 is installed on the hanging beam 1 through a bolt 6, a nut 7 and a washer 8. Preferably, two connection seats 3 are symmetrically arranged at left and right sides above the hanging beam 1.

Preferably, in order to strengthen the utility model discloses a wind turbine generator system becomes oar bearing sling's intensity, at a plurality of strengthening ribs 4 of side-mounting of hanging beam 1, avoid causing owing to become oar bearing 5 too big too heavily the utility model discloses a wind turbine generator system becomes oar bearing sling and damages.

The utility model discloses a wind turbine generator system becomes oar bearing hoist's application method does: firstly, respectively installing 2 shackles on a hanging seat 2 on the left side and the lower side of a hanging beam 1, and then respectively hanging the shackles on main and auxiliary lifting hooks of a crane of hoisting equipment through hanging belts; hoisting a wind turbine generator pitch bearing lifting tool, dropping the lifting tool above a horizontal pitch bearing 5, and connecting a connecting seat 3 with an inner ring of the pitch bearing 5 through a bolt 6, a nut 7 and a washer 8 when the lifting tool drops to the state that the connecting seat 3 of the wind turbine generator pitch bearing lifting tool is attached to the inner ring of the pitch bearing 5; simultaneously hoisting the main hook and the auxiliary hook to enable the pitch bearing 5 to be lifted to the height same as the center height of the hub mounting surface of the wind turbine generator, then keeping the auxiliary hook stationary, continuously hoisting the main hook, and gradually changing the pitch bearing 5 from a horizontal state to a vertical state; continuing to move the main hook and the auxiliary hook simultaneously, attaching the variable pitch bearing 5 to the hub mounting surface and the positioning spigot, and connecting the variable pitch bearing 5 with the hub by using a high-strength bolt; after the pitch bearing 5 is installed on the hub, the bolt 6, the nut 7 and the washer 8 are removed, and therefore the pitch bearing 5 is separated from the wind turbine pitch bearing lifting tool.

The utility model discloses it is safe convenient, assembly efficiency is high to become oar bearing hoist. The lifting appliance and the variable-pitch bearing 5 adopt a two-side connection mode, so that the variable-pitch bearing 5 is ensured not to deform in the lifting process; the turning-over of the variable pitch bearing 5 can be realized, and the variable pitch bearing 5 is turned over from a flat state to a vertical state; the bearing can be ensured to be in a vertical state in the hoisting process, the variable pitch bearing 5 cannot be inclined, the variable pitch bearing 5 and the hub are attached and installed without a gap, and the large bearing hoisting device is suitable for hoisting a large bearing.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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 process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like are referred to herein as being placed in the state shown in the drawings.

It should be further noted that the above embodiments are only used for illustrating the technical solution of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the scope of the present invention.

Claims (3)

1. The utility model provides a wind turbine generator system becomes oar bearing hoist, major structure is hanging beam, its characterized in that: the left side, the right side and the right side of the hanging beam are respectively provided with a hanging seat, the upper plane of the hanging beam is provided with a connecting seat, and the connecting seat is provided with a threaded hole.

2. The wind turbine generator pitch bearing hanger of claim 1, wherein: the threaded holes on the connecting seat are evenly distributed.

3. The wind turbine generator pitch bearing hanger of claim 1, wherein: and reinforcing ribs are arranged on the side surfaces of the hanging beams.

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