CN212563540U

CN212563540U - Be used for wind generating set driftage bearing, become lubricated oil circuit structure of oar bearing

Info

Publication number: CN212563540U
Application number: CN202021530896.1U
Authority: CN
Inventors: 何录忠; 章滔; 阳雪兵; 卜忠颉; 聂威; 刘明; 张学文
Original assignee: XEMC Windpower Co Ltd
Current assignee: XEMC Windpower Co Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-02-19
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a be used for wind generating set driftage bearing, become oar bearing lubrication oil circuit structure, including the bearing, the inner circle and the cabin of bearing link to each other, and the outer lane and the brake disc of bearing link to each other and link firmly on the fan tower section of thick bamboo again, the bearing inner circle is equipped with a plurality of grease inlets along the axis direction, and the grease pipeline of lubricating system is connected with grease inlet, squeezes into the inside of bearing raceway with the grease; an open sealing ring is arranged on the side of the bearing cabin and used as a main oil path for bearing grease discharge, and a plurality of pressure relief holes are formed in the circumferential direction of the outer ring of the bearing and used as an auxiliary grease discharge oil path of the bearing; the lubricating oil path of the bearing is as follows: the grease pipeline, the bearing grease inlet hole, the bearing raceway, the open seal ring grease outlet/pressure relief hole assist in grease outlet. The utility model has the advantages of simple structure, can effectively solve driftage, become oar bearing and go out difficult, the sealed fat problem of leaking of fat.

Description

Be used for wind generating set driftage bearing, become lubricated oil circuit structure of oar bearing

Technical Field

The utility model relates to a wind-powered electricity generation field, in particular to be used for wind generating set driftage bearing, change oar bearing lubrication oil circuit structure.

Background

The yaw variable pitch bearing of the wind generating set usually adopts a double-row four-point angular contact ball bearing, and the yaw or variable pitch action is realized through the relative movement of an inner ring and an outer ring. A typical bearing lubrication channel of a yaw variable pitch bearing is shown in FIG. 1, wherein 10 in FIG. 1 is a nacelle, 11 is a grease inlet hole, 12 is the yaw variable pitch bearing, 12-1 is an inner ring of the yaw variable pitch bearing, 12-2 is an outer ring of the yaw variable pitch bearing, 13 is a tower barrel, and a plurality of grease inlet holes 11 and grease outlet holes are circumferentially arranged on the outer ring of the yaw variable pitch bearing in FIG. 1. Grease enters the roller path from the outer wall surface of the outer ring 12-2 of the yaw variable-pitch bearing through the grease inlet hole 11 through the pipeline, then flows out of the yaw variable-pitch bearing through the grease outlet hole of the outer ring 12-2 of the yaw variable-pitch bearing, and finally flows into the grease collecting bottle.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a be used for wind generating set driftage bearing, change oar bearing lubrication oil circuit structure that simple structure, play fat are smooth and easy, sealed effectual.

The utility model provides a technical scheme of above-mentioned problem is: a lubricating oil path structure for a yaw bearing and a pitch bearing of a wind generating set comprises a bearing, wherein an inner ring of the bearing is connected with an engine room, an outer ring of the bearing is connected with a brake disc and then fixedly connected to a fan tower, the inner ring of the bearing is provided with a plurality of grease inlet holes along the axial direction, a grease pipeline of a lubricating system is connected with the grease inlet holes, and grease is pumped into a bearing raceway; an open sealing ring is arranged on the side of the bearing cabin and used as a main oil path for bearing grease discharge, and a plurality of pressure relief holes are formed in the circumferential direction of the outer ring of the bearing and used as an auxiliary grease discharge oil path of the bearing; the lubricating oil path of the bearing is as follows: the grease pipeline, the bearing grease inlet hole, the bearing raceway, the open seal ring grease outlet/pressure relief hole assist in grease outlet.

The lubricating oil path structure for the yaw bearing and the pitch bearing of the wind generating set is characterized in that the side of the bearing tower cylinder is sealed by the multi-lip sealing ring.

The lubricating oil path structure for the yaw bearing and the pitch bearing of the wind generating set is characterized in that the grease collecting disc is arranged on the outer diameter of the brake disc.

The lubricating oil circuit structure for the yaw bearing and the pitch bearing of the wind generating set is characterized in that the pressure relief hole is formed in the side of the bearing tower barrel.

The beneficial effects of the utility model reside in that:

1. the utility model discloses set up open type sealing washer in bearing cabin side, open type sealing washer mainly acts on and plays dustproof effect to as the main passageway that the bearing goes out fat, the inside exhaust grease of bearing can lubricate the flank of tooth.

2. The utility model discloses it has a plurality of pressure release holes to open at bearing inner race circumferencial direction, can realize the release of pressing in the bearing, reduces the pressure of bearing tower section of thick bamboo side sealing washer to as the supplementary grease discharging oil circuit of bearing.

3. The utility model discloses a bearing tower section of thick bamboo side adopts the many lips sealing washer sealed, can prevent that the bearing grease from leaking.

4. The utility model discloses be provided with the grease catch tray at the brake disc external diameter, can collect the pressure release hole exhaust grease.

5. The utility model discloses the lubricated oil circuit of bearing does: the grease pipeline, the bearing grease inlet hole, the bearing raceway, the open sealing ring grease outlet/pressure relief hole assist in grease outlet, have the advantage of simple structure, and can effectively solve the problems of difficult grease outlet of yaw and variable pitch bearings and grease leakage in sealing.

Drawings

FIG. 1 is a schematic view of a typical wind generating set yaw pitch bearing lubrication structure.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the main grease outlet channel of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 2 and 3, a lubricating oil path structure for a yaw bearing and a pitch bearing of a wind generating set comprises a bearing 2, wherein an inner ring of the bearing 2 is connected with a cabin 1, an outer ring of the bearing 2 is connected with a brake disc 4 and then fixedly connected to a fan tower drum 3, a plurality of grease inlet holes 2-1 are formed in the inner ring of the bearing 2 along the axis direction, a grease pipeline of a lubricating system is connected with the grease inlet holes 2-1 through threads, grease is injected into a bearing raceway, and a channel of the grease inlet hole 2-1 can be arranged to enter a lower raceway and alternately enter the upper raceway; an open type sealing ring 2-2 is arranged on the cabin side of the bearing 2, the open type sealing ring 2-2 has a dustproof effect and is used as a main oil way for bearing grease discharge, and grease discharged from the interior of the bearing 2 can lubricate the tooth surface; the tower cylinder side of the bearing 2 is sealed by multi-lip sealing rings 2-4, so that grease leakage of the bearing 2 can be prevented; a plurality of pressure relief holes 2-3 are formed in the circumferential direction of the outer ring of the bearing 2, the pressure relief holes 2-3 are formed in the tower cylinder side of the bearing 2, the internal pressure of the bearing can be released, the pressure of a multi-lip sealing ring 2-4 on the tower cylinder side of the bearing 2 is reduced, and the multi-lip sealing ring serves as an auxiliary grease discharging oil path of the bearing 2; the lubricating oil path of the bearing 2 is as follows: the grease pipeline-bearing grease inlet hole 2-1-bearing raceway-open seal ring 2-2 grease outlet/pressure relief hole 2-3 assists in grease outlet. And a grease collecting disc is arranged on the outer diameter of the brake disc 4 and can be used for collecting grease discharged from the pressure relief holes 2-3.

The utility model discloses bearing 2's lubricated oil circuit does: the grease pipeline-bearing grease inlet hole 2-1-bearing raceway-open seal ring 2-2 grease outlet/pressure relief hole 2-3 assists in grease outlet. The utility model discloses rationally design the oil circuit of bearing, had simple structure's advantage, can reduce the pressure of bearing seal end, can effectively solve driftage, become oar bearing and go out difficult, the sealed hourglass fat problem of fat.

Claims

1. The utility model provides a be used for wind generating set driftage bearing, become lubricated oil circuit structure of oar bearing which characterized in that: the bearing comprises a bearing, wherein an inner ring of the bearing is connected with an engine room, an outer ring of the bearing is connected with a brake disc and then fixedly connected to a fan tower cylinder, a plurality of grease inlet holes are formed in the inner ring of the bearing along the axial direction, a grease pipeline of a lubricating system is connected with the grease inlet holes, and grease is pumped into a bearing raceway; an open sealing ring is arranged on the side of the bearing cabin and used as a main oil path for bearing grease discharge, and a plurality of pressure relief holes are formed in the circumferential direction of the outer ring of the bearing and used as an auxiliary grease discharge oil path of the bearing; the lubricating oil path of the bearing is as follows: the grease pipeline, the bearing grease inlet hole, the bearing raceway, the open seal ring grease outlet/pressure relief hole assist in grease outlet.

2. The lubricating oil path structure for the yaw bearing and the pitch bearing of the wind generating set according to claim 1, wherein the lubricating oil path structure comprises: the side of the bearing tower cylinder is sealed by a multi-lip sealing ring.

3. The lubricating oil path structure for the yaw bearing and the pitch bearing of the wind generating set according to claim 1, wherein the lubricating oil path structure comprises: the outer diameter of the brake disc is provided with a grease collecting disc.

4. The lubricating oil path structure for the yaw bearing and the pitch bearing of the wind generating set according to claim 1, wherein the lubricating oil path structure comprises: the pressure relief hole is formed in the side of the bearing tower barrel.