RU212058U1 - PIVOT ASSEMBLY OF WIND GENERATOR - Google Patents

Abstract

The utility model relates to wind turbines. More specifically, it refers to the pivot assembly of the wind turbine, which is more convenient to maintain when lubricated.

The technical result is to simplify the procedure for lubricating the pivot assembly, which does not require disassembly of the wind generator housing.

The specified technical result is achieved due to the fact that the wind turbine pivot assembly is claimed, consisting of a pivot assembly and a pivot assembly bushing clamped through thrust washers between the upper and lower parts of the wind generator housing, the bushing being located in the upper part of the housing, and the pivot located inside the bushing, characterized in that that on the outer side of the body of the upper part of the wind generator in the area of the kingpin, a through threaded hole is made in the wall of the body and passes through the sleeve, inside which the tavor is screwed.

Description

The utility model relates to wind turbines. More specifically, it refers to the pivot assembly of the wind turbine, which is more convenient to maintain when lubricated.

Whisper-200 wind turbines are known from the prior art [https://avrora-arm.ru/index/sitemenu/20700], publ.: 03/14/2019. The solution was chosen as a prototype.

In the prototype, the pivot assembly of the wind generator consists of a pivot and a bushing of the pivot assembly, clamped through thrust washers between the upper and lower parts of the wind turbine housing, the bushing being located in the upper part of the housing, and the pivot located inside the bushing.

This wind generator was created by the American company Southwest Wind Power, and is the most efficient wind generator in its class. generates more power than any other comparable turbine even at low wind speeds.

When carrying out maintenance work on autonomous power sources of cluster telemechanics, work is carried out to lubricate the pivot assembly of the Whisper-200 wind generator.

The technical problem is the complexity of this lubrication procedure.

So, for this procedure it is necessary:

1) Lower the generator from the mast (using a winch);

2) Separate the upper and lower parts of the wind turbine housing;

3) Lubricate the king pin;

4) Assemble the wind generator;

5) Raise the wind generator to the mast (using a winch). The objective of the utility model is to eliminate the specified technical problem.

The technical result is to simplify the procedure for lubricating the pivot assembly, which does not require disassembly of the wind generator housing.

The specified technical result is achieved due to the fact that the wind turbine pivot assembly is claimed, consisting of a pivot assembly and a pivot assembly bushing clamped through thrust washers between the upper and lower parts of the wind generator housing, the bushing being located in the upper part of the housing, and the pivot located inside the bushing, characterized in that that on the outer side of the housing of the upper part of the wind generator in the area of the kingpin, a through threaded hole is made in the wall of the housing and passes through the bushing, inside which the grease gun is screwed.

Preferably, the grease gun has a spherical tip.

Brief description of the drawings

On FIG. 1 shows the process of drilling a hole in the upper part of the wind turbine in the area of the pivot of a through hole in the casing wall.

On FIG. 2 shows an example of a utility model with a grease maker installed in the hole.

On FIG. 3 shows an example of kingpin lubrication through a grease fitting.

In the drawings: 1 - the upper part of the wind generator housing, 2 - the lower part of the wind generator housing, 3 - kingpin, 4 - bushing of the pivot assembly, 5 - thrust washers, 6 - drill, 7 - hole, 8 - grease gun, 9 - grease gun spherical tip, 10 - grease gun, 11 - oil flow direction.

Implementation of the utility model

The utility model reflects the pivot assembly of the wind generator (see Fig. 2), consisting of the pivot 3 and the sleeve 4 of the pivot assembly, clamped through the thrust washers 5 between the upper 1 and lower 2 parts of the wind generator housing, the sleeve 4 being located in the upper part 1 of the housing, and the pin 3 is located inside the sleeve 4.

What is new is that on the outer side of the housing of the upper part 1 of the wind generator in the area of the pivot 3, a through threaded hole is made in the wall of the housing and passes through the sleeve 4, inside which the grease gun 8 is screwed in. For convenience, the grease gun 8 has a spherical tip 9.

The utility model can be made in the following way.

In the upper part 1 of the wind turbine housing from the outside at half the height of the bronze bushing 4, a drill 6 drills a through hole in the housing wall (see Fig. 1), for example, with a diameter of 5.2 mm. Hole 7 is drilled in the wall of the body of the kingpin 3, passing through the sleeve 4 and without affecting the kingpin 3.

After that, with a tap, for example, Mb with a step of 0.75 mm, a thread is cut in hole 7. A straight grease fitting 8 is screwed into the resulting hole and tightened with a key (see Fig. 2).

The principle of using the utility model is based on the fact that when lubricating the pivot assembly of the wind generator, the maintenance process is carried out without disassembling the casing of the wind generator due to the fact that lubricant is added to the pivot assembly through the grease fitting 8 using a syringe.

Example.

The maintenance process of a wind turbine with an installed grease gun is carried out in the following steps:

1) Turn off the wind generator.

2) External inspection, checking the absence of mechanical damage to the hull and blades, checking the reliability of fastening the wind turbine to the mast, removing ice from the hull and blades in winter (monthly).

3) Lubricate the kingpin and bushings by pouring SKF low temperature grease through the grease fitting.

Lubrication of the pivot 3 and bushing 4 of the pivot assembly of the wind turbine occurs as follows (see Fig. 3).

The lever-plunger grease gun 10, for example, "Belak" (auto kit BAK 90510) is filled with SKF low-temperature grease. For greater convenience, the tip of the syringe is put on the spherical tip 9 of the grease gun 8. By pressing the lever of the syringe 10, lubricant is pumped. Lubricant 11 entering the wind generator housing gradually fills the gap between bushing 4 and kingpin 3, reaching thrust washers 5.

The lower part 2 of the wind turbine housing does not require lubrication.

4) After lubrication, the wind generator is put into operation.

5) Checking the operation of the dynamic braking system of the wind turbine. In the presence of wind up to 12 m / s, after turning on the “brake” machine in the ballast cabinet of the wind generator, the speed of rotation of the blades should gradually slow down. Otherwise, find and eliminate the cause of the malfunction.

The example shows that at the same time the procedure for lubricating the pivot assembly of the wind generator is provided and there is no need to disassemble and assemble the wind generator, as it is necessary to do in the Whisper-200 prototype pivot assembly.

Claims (2)

1. The pivot assembly of the wind generator, consisting of a pivot and a bushing of the pivot assembly, clamped through thrust washers between the upper and lower parts of the wind generator housing, the bushing is located in the upper part of the housing, and the pivot is located inside the bushing, characterized in that on the outer side of the housing of the upper part wind generator in the area of the kingpin, a through threaded hole is made in the housing wall and passes through the bushing, inside which the grease gun is screwed. 2. The pivot assembly of the wind generator according to claim 1, characterized in that the grease maker has a spherical tip.

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