CN-122014833-A - Multistage noise reduction compact wind power gear box

CN122014833ACN 122014833 ACN122014833 ACN 122014833ACN-122014833-A

Abstract

The invention discloses a multistage noise reduction compact wind power gear box, which relates to the technical field of gear boxes and comprises a base and a first transmission assembly, wherein a second transmission assembly and a connecting assembly are arranged at the right end of the upper side of the base, the second transmission assembly is connected with the connecting assembly, the first transmission assembly comprises a supporting shell, a first transmission shaft, a first bearing, a sun gear and an inner gear ring, the supporting shell is fixed at the left end of the upper side of the base, the left end of the inside of the supporting shell is rotationally connected with the first transmission shaft, the first bearing is arranged on the surface of the first transmission shaft, the first bearing is fixed at the left end of the inside of the supporting shell, the sun gear is fixed at the right end of the inside of the first transmission shaft, the inner gear ring is arranged at the right end of the inside of the supporting shell, and the sun gear is positioned inside the inner gear ring, so that the operation noise can be effectively reduced, the axial size can be reduced, and the maintenance flow can be simplified through multistage planetary gear transmission and automatic lubrication system and compact structural design.

Inventors

PENG ZHIZHONG
ZHAO JIYONG
QIN YIWEI
Wang Diebin
JIA YUEFEI

Assignees

华能山西综合能源有限责任公司
华能吐鲁番风力发电有限公司
华能左权羊角风电有限责任公司
五寨县太重新能源风力发电有限公司

Dates

Publication Date: 20260512
Application Date: 20260212

Claims (10)

1. The multi-stage noise reduction compact wind power gear box is characterized by comprising a base (1) and a first transmission assembly (2); The right end of the upper side of the base (1) is provided with a second transmission assembly (4) and a connecting assembly (5), and the second transmission assembly (4) is connected with the connecting assembly (5); The first transmission component (2) comprises a supporting shell (21), a first transmission shaft (22), a first bearing (23), a sun gear (24) and an inner gear ring (25), wherein the supporting shell (21) is fixed at the left end of the upper side of the base (1), the first transmission shaft (22) is rotatably connected with the left end of the inside of the supporting shell (21), the first bearing (23) is arranged on the surface of the first transmission shaft (22), the first bearing (23) is fixed at the left end of the inside of the supporting shell (21), the sun gear (24) is fixed at the right end of the first transmission shaft (22), the inner gear ring (25) is arranged at the right end of the inside of the supporting shell (21), the sun gear (24) is positioned in the inside of the inner gear ring (25), the right end of the inside of the supporting shell (21) is provided with a planetary gear component (3), the left end of the planetary gear component (3) is respectively meshed with the sun gear (24) and the inner gear ring (25), the right end of the planetary gear component (3) is connected with the second transmission component (4), the supporting shell (21) is provided with the reset component (7), the reset component (7) is arranged on the surface of the supporting shell (7), the reset component (7) is arranged on the reset component (6), the discharging component (8) is connected with the resetting component (7).
2. The multi-stage noise reduction compact wind power gearbox according to claim 1, wherein the planetary gear assembly (3) comprises a connecting rod (31), a planetary gear carrier (32), a planetary gear (33), a transmission main gear (34) and a second bearing (35), the right end inside the supporting shell (21) is rotationally connected with the connecting rod (31), the left end of the connecting rod (31) is fixedly provided with the planetary gear carrier (32), the left side of the planetary gear carrier (32) is rotationally connected with three corresponding planetary gears (33), the three planetary gears (33) are respectively meshed with a sun gear (24) and an inner gear ring (25), the second bearing (35) is installed on the circumferential surface of the connecting rod (31), and the right end of the second bearing (35) is fixedly arranged inside the supporting shell (21), and the right end of the connecting rod (31) is fixedly provided with the transmission main gear (34).
3. The multi-stage noise reduction compact wind power gear box according to claim 2, wherein the second transmission assembly (4) comprises a transmission pinion (41), a second transmission shaft (42), a first connecting gear (43) and a protection cover (44), two corresponding protection covers (44) are fixed at the right end of the upper side of the base (1), two corresponding first openings are formed in the corresponding inner side surfaces of the two protection covers (44), the second transmission shaft (42) is rotatably connected to the inside of the two first openings, the transmission pinion (41) is fixed at the left end of the second transmission shaft (42), the transmission pinion (41) is meshed with the transmission main gear (34), the transmission pinion (41) and the transmission main gear (34) are both located inside the left protection cover (44), the first connecting gear (43) is fixed at the right end of the second transmission shaft (42), and the first connecting gear (43) is located inside the right protection cover (44).
4. The multi-stage noise reduction compact wind power gear box according to claim 3, wherein the connecting assembly (5) comprises a second connecting gear (51), a connecting shaft (52) and a connecting disc (53), a second opening is formed in the right side of the right-side protection cover (44), the connecting shaft (52) is rotatably connected to the inside of the second opening, the second connecting gear (51) is fixed to the left end of the connecting shaft (52), the second connecting gear (51) is meshed with the first connecting gear (43), the second connecting gear (51) is located in the right-side protection cover (44), and the connecting disc (53) is fixed to the right end of the connecting shaft (52).
5. The multi-stage noise reduction compact wind power gear box according to claim 2, wherein the oiling component (6) comprises a storage barrel (61), a first internal thread ring (62), a storage cavity (63) and an inclined guide plate (64), the storage cavity (63) is arranged in the shell wall at the upper end of the support shell (21), the inclined guide plate (64) is fixed in the storage cavity (63), two corresponding connecting holes are formed in the upper end of the storage cavity (63), a first internal thread ring (62) is fixed in the connecting hole at the left side, and the storage barrel (61) is connected with the internal thread of the first internal thread ring (62).
6. The multi-stage noise reduction compact wind power gear box according to claim 5, wherein the reset component (7) comprises a second internal thread ring (71), a connecting barrel (72), a limiting ring (73), supporting plates (74), springs (75) and connecting columns (76), the connecting barrel (72) is arranged in a connecting hole formed in the right side of the upper end of the inside of the storage cavity (63), the second internal thread ring (71) is connected with the surface of the connecting barrel (72) in a threaded mode, the second internal thread ring (71) is fixed on the surface of the supporting shell (21), the limiting ring (73) is fixed on the circumferential surface of the connecting barrel (72), the limiting ring (73) is attached to the upper end of the second internal thread ring (71), two corresponding supporting plates (74) are arranged in the inside of the connecting barrel (72), the springs (75) are fixed between the two supporting plates (74), and the connecting columns (76) are fixed at the lower ends of the supporting plates (74) on the lower side.
7. The multi-stage noise reduction compact wind power gear box according to claim 6, wherein the discharging assembly (8) comprises a discharging rod (81), a diversion trench (82) and a diversion hole (83), a discharging hole is formed in the lower end of the inside of the storage cavity (63), the discharging rod (81) is connected in a sliding mode in the discharging hole, the diversion trench (82) is formed in the left end of the surface of the discharging rod (81), the diversion trench (83) is formed in the upper end of the inside of the supporting shell (21), the diversion hole (83) is communicated with the discharging hole, the diversion hole (83) corresponds to the diversion trench (82) mutually, the upper end of the discharging rod (81) is fixed at the lower end of the connecting column (76), and the discharging rod (81) is matched with the planet gear carrier (32).
8. The multi-stage noise reduction compact wind power gear box according to claim 4, wherein a supporting frame (9) is fixed at the right end of the upper side of the base (1), a fixing hole is formed in the upper end of the inside of the supporting frame (9), a supporting tube (10) is fixed in the inside of the fixing hole, and the connecting shaft (52) is rotatably connected in the supporting tube (10).
9. The multi-stage noise reduction compact wind power gear box according to claim 4, wherein a connecting flange plate (11) is fixed at the right end of the connecting disc (53), and uniformly distributed connecting holes are formed at the edge of the connecting flange plate (11).
10. The multi-stage noise reduction compact wind power gear box is characterized in that four corresponding mounting holes are formed in four corners of the base (1), and reinforcing rings (12) are fixed in the mounting holes.

Description

Multistage noise reduction compact wind power gear box Technical Field The invention relates to the field of gear boxes, in particular to a multi-stage noise reduction compact wind power gear box. Background Wind power generation plays an increasingly important role in global energy structure transformation as a clean renewable energy source. The wind wheel is driven to rotate by wind power, wind energy is converted into mechanical energy, and then the generator is utilized to generate electric energy, so that green electric power is provided for a power grid. With the promotion of increasingly serious climate change problems and environmental protection policies, wind power generation technology is rapidly developed, and particularly, the wide application of large-scale wind power generation units on the sea and on the land brings higher requirements on the reliability, efficiency and environmental friendliness of equipment. The core of the wind power generation system is wind energy capturing and converting efficiency, wherein a transmission part is used as a key link to directly influence the performance and service life of the whole unit. With the continuous increase of the capacity of a single machine, wind power generation is developing towards more efficient and intelligent, but challenges such as noise control, space layout and maintenance convenience are faced. The wind power gear box is a core transmission device in the wind generating set and is positioned between the wind wheel and the generator, and the wind power gear box has the main function of converting low-rotation-speed and high-torque power of the wind wheel into high-rotation-speed and low-torque power required by the generator, thereby realizing efficient power generation. Because the rotating speed of the wind wheel is usually lower, and the generator can work efficiently at a higher rotating speed, the gear box realizes speed increase through multi-stage gear transmission, and the energy conversion efficiency is ensured. The design of the gearbox needs to be compatible with high load capacity, compact structure and long-term reliability to bear frequently changing loads and severe operating environments of wind power generation. The typical wind power gear box adopts a planetary gear structure, and the structure has the advantages of large transmission ratio, strong bearing capacity, high space utilization rate and the like, but also provides strict requirements on manufacturing precision, a lubrication system and vibration control. The performance of the gearbox is directly related to the operational stability, noise level and maintenance costs of the entire wind power plant, and therefore its technical optimization has been the focus of industry attention. However, the existing wind power gear box still has a plurality of defects in practical application. On the one hand, the problem of vibration and noise generated by meshing gears is prominent in the high-speed running process of the gearbox, and the traditional design often lacks effective noise reduction measures, so that noise is transmitted through the structure, influences the surrounding environment and can mask early fault signals. On the other hand, in order to pursue high power output, the gear box often adopts multi-stage transmission, so that the axial dimension is overlarge, the structure is not compact enough, the manufacturing cost and the tower top arrangement difficulty are increased, and the rigidity and the stability of the system are reduced. In addition, the existing gearbox is poor in maintainability, and is inconvenient to detach when being lubricated, so that the multi-stage noise reduction compact wind power gearbox is provided. Disclosure of Invention The technical problem to be solved by the invention is to overcome the existing defects, and provide the multistage noise reduction compact wind power gear box which can effectively reduce the running noise, reduce the axial size and simplify the maintenance flow through multistage planetary gear transmission, an automatic lubrication system and compact structural design, and can effectively solve the problems in the background technology. In order to achieve the purpose, the invention provides the technical scheme that the multi-stage noise reduction compact wind power gear box comprises a base and a first transmission assembly; The right end of the upper side of the base is provided with a second transmission assembly and a connecting assembly, and the second transmission assembly is connected with the connecting assembly; The first transmission assembly comprises a supporting shell, a first transmission shaft, a first bearing, a sun gear and an annular gear, wherein the supporting shell is fixed at the left end of the upper side of the base, the first transmission shaft is rotatably connected to the left end of the inside of the supporting shell, the first bearing is mounted on the surface of the first t