CN-224201098-U - Oil spraying plate device of gear box of land wind turbine generator

CN224201098UCN 224201098 UCN224201098 UCN 224201098UCN-224201098-U

Abstract

The utility model belongs to the technical field of wind power generation, in particular to a wind power generation technical field, and particularly relates to a gearbox oil injection plate device of a land wind turbine generator, which comprises a high-speed bearing and an oil injection plate assembly, wherein the high-speed bearing and the oil injection plate assembly are arranged at a partition plate in the gearbox, an oil inlet and an oil injection hole which are communicated through an inner groove are formed in the oil injection plate assembly, an oil outlet hole penetrating through the outer ring is formed in an outer ring of the high-speed bearing, a rear sealing plate of the oil injection plate assembly is of a non-fully-closed structure, the rear sealing plate in the traditional oil injection plate assembly is of a fully-closed state, oil can only be discharged from the oil outlet hole and then is collected, the rear sealing plate is of a non-fully-closed structure, and excessive oil can quickly overflow from an opening of the rear sealing plate to quickly take heat of the high-speed bearing, so that the overtemperature alarm and shutdown of the bearing are avoided.

Inventors

LI ZHUO
Mao Linbo
JIANG LIN
ZHANG GUANGYONG
Bai Gangling
XI SHANGHUA
SUN JIAWEN
LI KEKE
CHEN YUANJIAN

Assignees

大唐(长顺)新能源有限公司

Dates

Publication Date: 20260505
Application Date: 20250624

Claims (7)

1. The oil spraying plate device of the land wind turbine generator system gearbox comprises a high-speed bearing (2) and an oil spraying plate assembly (5) which are arranged at a partition plate (1) in the gearbox, wherein an oil inlet (7) and an oil spraying hole (8) which are communicated through an inner groove are formed in the oil spraying plate assembly (5), and an oil discharging hole (4) penetrating through the outer ring is formed in the outer ring of the high-speed bearing (2).
2. The oil spraying plate device for the gearbox of the land wind turbine generator system according to claim 1 is characterized in that the lower side of the rear sealing plate (6) is arranged in a penetrating mode.
3. The oil spraying plate device for the gearbox of the land wind turbine generator system according to claim 1 is characterized in that a semi-annular penetrating structure is arranged on the lower side of the rear sealing plate (6).
4. The oil spraying plate device for the gearbox of the land wind turbine generator system according to claim 1 is characterized in that the number of the oil spraying holes (8) is two, wherein one oil spraying hole (8) sprays oil on the roller of the high-speed bearing (2), and the other oil spraying hole (8) sprays oil on the baffle of the high-speed bearing (2).
5. The oil spraying plate device of the land wind turbine generator system gearbox is characterized in that an oil blocking shell (9) is arranged on one side, facing the column shaft (3), of the inner partition plate (1) of the gearbox.
6. The oil spraying plate device of the land wind turbine generator system gearbox is characterized in that one end of the oil blocking shell (9) is sealed with the outer ring of the high-speed bearing (2) through a sealing ring (10).
7. The oil spraying plate device of the land wind turbine generator system gearbox is characterized in that the lowest point of an outer baffle of the oil blocking shell (9) is higher than the lowest point of the inner diameter of an outer ring of the high-speed bearing (2).

Description

Oil spraying plate device of gear box of land wind turbine generator Technical Field The utility model belongs to the technical field of wind power generation, and particularly relates to a gearbox oil spraying plate device of a land wind turbine generator. Background The bearing lubrication mode of the high-speed shaft (blade side) of the gearbox is forced lubrication, lubricating oil is pumped into an oil inlet hole radially formed in an oil injection plate assembly through an oil pump motor, and an annular oil way communicated with the oil inlet hole and the oil injection hole is formed in the inner side of the oil injection plate assembly, so that oil can be finally sprayed onto the high-speed bearing through the oil injection hole, the high-speed bearing is lubricated, meanwhile, the oil flows to the inner side of an outer ring from a gap of a through roller, and then is discharged through an oil discharge hole formed in the outer ring, the flowing oil takes away heat, the bearing is cooled, when the oil cannot be discharged in time, a drowsiness phenomenon is generated, the oil cannot take away heat in time, the heat generated by the bearing is greater than the heat taken away by the oil, and the bearing temperature is continuously increased until overtemperature alarm is caused. Disclosure of utility model To solve the problems set forth in the background art. The utility model provides a land wind turbine generator system gearbox oil spraying plate device, which is characterized in that a rear sealing plate is of a non-fully-closed structure, excessive oil can quickly overflow from an opening of the rear sealing plate, heat of a high-speed bearing is quickly taken away, and overtemperature alarm shutdown of the bearing is avoided. The oil injection plate device of the land wind turbine generator gear box comprises a high-speed bearing and an oil injection plate assembly, wherein the high-speed bearing and the oil injection plate assembly are arranged at a partition plate in the gear box, an oil inlet hole and an oil injection hole which are communicated through an inner groove are formed in the oil injection plate assembly, an oil discharge hole penetrating through the outer ring is formed in an outer ring of the high-speed bearing, and a rear sealing plate of the oil injection plate assembly is of a non-fully-closed structure. As the oil spraying plate device of the land wind turbine generator gearbox, the lower side of the rear sealing plate is preferably arranged in a penetrating way. As the preferable oil spraying plate device of the land wind turbine generator gearbox, the lower side of the rear sealing plate is provided with a semi-annular penetrating structure. As the oil spraying plate device of the gear box of the land wind turbine generator, the number of the oil spraying holes is preferably two, wherein one oil spraying hole sprays oil on the roller of the high-speed bearing, and the other oil spraying hole sprays oil on the baffle of the high-speed bearing. As the oil spraying plate device of the gear box of the land wind turbine generator, an oil blocking shell is preferably arranged on one side, facing the column shaft, of the baffle plate in the gear box. As the preferable oil spraying plate device of the gear box of the land wind turbine generator, one end of the oil blocking shell is sealed with the outer ring of the high-speed bearing through the sealing ring. As the oil spraying plate device of the land wind turbine gear box, the lowest point of the baffle outside the oil blocking shell is preferably higher than the lowest point of the inner diameter of the outer ring of the high-speed bearing. Compared with the prior art, the oil spraying plate assembly has the beneficial effects that the rear sealing plate in the traditional oil spraying plate assembly is in a fully-closed state, oil can only be collected after being discharged from the oil discharging hole, the rear sealing plate is in a non-fully-closed structure, excessive oil can quickly overflow from the opening of the rear sealing plate, heat of a high-speed bearing is quickly taken away, and the overtemperature alarm shutdown of the bearing is avoided. Drawings The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings: FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a schematic diagram of a prior art fuel injection plate assembly according to the present utility model; FIG. 3 is a schematic view of an opening position of an oil jet in the present utility model; FIG. 4 is a schematic view of an improved structure of the rear seal plate of the present utility model; FIG. 5 is a schematic view of the opening position of the oil inlet hole i