CN215633523U

CN215633523U - Oil leakage prevention structure for guide shaft of gear box of wind generating set

Info

Publication number: CN215633523U
Application number: CN202122120196.6U
Authority: CN
Inventors: 张陇; 李洪涛; 强生金; 毕德刚; 景晓越; 高海龙
Original assignee: Ningxia Datang International Qingtongxia Wind Power Co ltd
Current assignee: Ningxia Datang International Qingtongxia Wind Power Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-25
Anticipated expiration: 2031-09-03

Abstract

The utility model relates to an oil leakage prevention structure for a guide shaft of a gear box of a wind generating set. The method is characterized in that: the gearbox guide shaft sleeve is composed of a joint and a connecting pipe which are communicated with each other, the connecting pipe is inserted into the guide shaft, and a gap is reserved between the connecting pipe and the guide shaft; wherein a through hole is opened on the hollow tube of the gear box beside the connecting tube, so that the guide shaft of the gear box leaks oil and flows to the through hole along the connecting tube to return to the interior of the gear box. Trial proves that after the oil leakage preventing structure of the guide shaft of the gear box of the wind generating set is adopted, when the gear box runs under heavy load, oil leaked from the sealing ring enters the hollow tube hole of the gear box through the outer wall of the sleeve and flows back into the gear box, so that the oil of the gear box is prevented from entering the sliding ring and the hub, the danger coefficient is reduced, and the safe running of a fan is ensured.

Description

Oil leakage prevention structure for guide shaft of gear box of wind generating set

Technical Field

The utility model relates to an oil leakage prevention structure for a guide shaft of a gear box of a wind generating set.

Background

With the rapid development of wind power industry in China, large-scale wind generating sets become mainstream, but the higher failure rate of the gear box becomes one of the main factors restricting the development of the gear box. The gear box mainly plays a role in the wind generating set, and the rotating speed of the impeller is accelerated through the gear box to reach the rated rotating speed of the generator. The leaked oil on the guide shaft of the gear box not only causes frequent accidents of the wind generating set, but also greatly increases the ignition risk of the wind generating set due to a large amount of leaked gear oil, so that the problem of the leaked oil on the guide shaft of the gear box is particularly important to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil leakage prevention structure for a guide shaft of a gearbox of a wind generating set, which can prevent gear oil from entering a sliding ring or a hub when the guide shaft of the gearbox leaks oil, so that electric elements in the sliding ring and the hub are damaged, and further, the occurrence of fire is effectively avoided.

The utility model provides a wind generating set gear box guide shaft leak protection oil structure which characterized in that: the gearbox guide shaft sleeve is composed of a joint and a connecting pipe which are communicated with each other, the connecting pipe is inserted into the guide shaft, and a gap is reserved between the connecting pipe and the guide shaft; wherein a through hole is opened on the hollow tube of the gear box beside the connecting tube, so that the guide shaft of the gear box leaks oil and flows to the through hole along the connecting tube to return to the interior of the gear box.

The cross section of the joint of the gear box guide shaft sleeve is T-shaped, and a plurality of mounting holes are formed in the edge of the joint so that the gear box guide shaft sleeve can be detachably mounted beside the guide shaft through fasteners such as bolts.

Trial proves that after the oil leakage preventing structure of the guide shaft of the gear box of the wind generating set is adopted, when the gear box runs under heavy load, oil leaked from the sealing ring enters the hollow tube hole of the gear box through the outer wall of the sleeve and flows back into the gear box, so that the oil of the gear box is prevented from entering the sliding ring and the hub, the danger coefficient is reduced, and the safe running of a fan is ensured.

Drawings

FIG. 1 is a schematic structural view of a guide shaft sleeve of a gear box according to the present invention.

Detailed Description

A wind generating set gear box guide shaft oil leakage prevention structure comprises a gear box guide shaft sleeve as shown in figure 1, wherein the gear box guide shaft sleeve is composed of a joint 2 and a connecting pipe 1 which are communicated with each other, the connecting pipe 1 is inserted into a guide shaft and a main shaft inner assembly and is specifically positioned in the guide shaft, and a gap is reserved between the sleeve and the guide shaft; wherein a through hole is opened on the hollow tube of the gear box beside the connecting tube 1, so that the guide shaft of the gear box leaks oil and moves to the through hole along the connecting tube 1 to return to the interior of the gear box.

The structure of the utility model is improved by inserting the sleeve into the guide shaft and the main shaft internal component and discharging the oil leakage back to the oil tank by drilling holes on the hollow pipe of the gear box, thereby solving the problem of oil leakage pollution. Therefore, the oil of the fan gear box can not enter the sliding ring and the hub, and the lubricating effect of the gear box is not influenced, so that the problem of oil leakage of the guide shaft of the gear box is solved.

The using method and the working principle of the utility model are as follows:

this gear box guide shaft sleeve pipe comprises joint 2 and connecting pipe 1 that communicate each other, and this connecting pipe 1 inserts in leading shaft and the main shaft inner assembly, is located inside the leading shaft to there is the clearance between sleeve pipe and the leading shaft, because the leading shaft is sealed not good when the gear box oil, flows into in the clearance space between leading shaft inner wall and the sleeve pipe outer wall, and in the operation process, the gear box oil of seepage flows into inside the gear box through the through-hole of beating in advance beside the leading shaft.

Claims

1. The utility model provides a wind generating set gear box guide shaft leak protection oil structure which characterized in that: the gearbox guide shaft sleeve is composed of a joint (2) and a connecting pipe (1) which are communicated with each other, the connecting pipe (1) is inserted into the guide shaft, and a gap is reserved between the connecting pipe (1) and the guide shaft; wherein a through hole is formed on the hollow tube of the gear box beside the connecting tube (1), so that the guide shaft of the gear box leaks oil to the through hole along the connecting tube (1) and returns to the interior of the gear box.

2. The wind generating set gearbox guide shaft oil leakage prevention structure as claimed in claim 1, wherein: the cross section of the joint (2) of the guide shaft sleeve of the gear box is T-shaped, and a plurality of mounting holes (3) are formed in the edge of the joint (2) so that the guide shaft sleeve of the gear box can be mounted beside the guide shaft through fasteners.