CN202836964U

CN202836964U - Rotary Support Structure of Gearbox Test Bench for Wind Turbine

Info

Publication number: CN202836964U
Application number: CN 201220439477
Authority: CN
Inventors: 袁久明; 李应华; 宋成桂
Original assignee: GUANGDONG MINGYANG WIND POWER INDUSTRY GROUP CO LTD
Current assignee: GUANGDONG MINGYANG WIND POWER INDUSTRY GROUP CO LTD
Priority date: 2012-08-31
Filing date: 2012-08-31
Publication date: 2013-03-27
Anticipated expiration: 2022-08-31

Abstract

The utility model discloses a rotary supporting structure of wind generating set gear box test bench, it includes the hollow shaft, the tight adapter sleeve that expands is passed through drive flange joint to the one end of hollow shaft, the tight adapter sleeve that expands downthehole face expands with the cooperation of the high-speed output shaft of gear box, be equipped with rotatory oil blanket subassembly between hollow shaft and the high-speed output shaft of gear box, the periphery of hollow shaft is equipped with the sealed lid of rear end, the sealed lid of rear end is connected with the gear box, be equipped with the bearing housing between the sealed lid of hollow shaft and rear end, be equipped with the bearing between bearing. The utility model discloses duplex bearing rationally selects for use, has satisfied the bearing capacity and has greatly reached high transmission torque's designing requirement. The lubrication adopts a forced splash lubrication mode and reasonable cooling system arrangement, and the service life of the bearing is effectively ensured. The expansion connecting sleeve is connected with the output shaft of the gear box, so that the centering performance is good, the bearing capacity is high, the transmission torque is large, the requirement of frequent disassembly of the gear box is met, and the auxiliary sealing effect can be realized.

Description

The rotary support structure of gear box test bed of wind generating set

[technical field]

The utility model relates to a kind of rotary support structure of gear box test bed of wind generating set.

[background technology]

Wind-driven generator group wheel box is as the crucial weak element of wind power generating set, from its design and develop, the aspects such as the authentication of quality control, type and customer demand all necessarily require gear case correlated performance parameter is tested, whether satisfy re-set target with checking, and the rotary support component design is as the gear box test table important component part, for the gearbox high-speed output shaft provides support, transmitting torque and sealing function requirement.So propose this compact wind power generating set 6.0 MW class gear box test table rotary components structural design schemes.

[utility model content]

The purpose of this utility model is to overcome the deficiencies in the prior art part, a kind of long service life is provided, load capacity and transmitting torque are large, and centering property is good, quick detachable, and has the rotary support structure of the gear box test bed of wind generating set of fine seal lubrication performance.

The purpose of this utility model is achieved in that

The rotary support structure of gear box test bed of wind generating set, it is characterized in that it comprises tubular shaft, one end of tubular shaft connects expansion connecting sleeve by driving flange, the expansion connecting sleeve inner hole surface cooperates swelling with the gearbox high-speed output shaft, be provided with the rotary oil seal assembly between tubular shaft and the gearbox high-speed output shaft, the outer rear end seal cover that is arranged with of tubular shaft, rear end seal cover is connected with gear case, be provided with bearing holder (housing, cover) between tubular shaft and the rear end seal cover, be provided with bearing between bearing holder (housing, cover) and the tubular shaft.

The rotary support structure of aforesaid gear box test bed of wind generating set, it is characterized in that described tubular shaft is horn shape, bearing comprises the deep groove ball bearing that is located at tubular shaft heavy caliber periphery and the cylinder roller bearing that is located at the small-bore periphery of tubular shaft.

The rotary support structure of aforesaid gear box test bed of wind generating set, the top that it is characterized in that described bearing holder (housing, cover) is provided with inlet nozzle and oil inlet passage, the bottom of bearing holder (housing, cover) is provided with oil discharge passage and spill port, lubricating oil enters from the inlet nozzle at top, through flowing into oil discharge passage behind the oil inlet passage, again through the spill port oil return to rear end seal cover.

The rotary support structure of aforesaid gear box test bed of wind generating set is characterized in that described inlet nozzle comprises the oil inlet pipe that is inserted into space between tubular shaft and the bearing holder (housing, cover), and the outside of oil inlet pipe is provided with the oil inlet pipe lid, and oil inlet pipe covers and is provided with seal head.

Rotary support modular construction of the present utility model is reasonable in design, has the following advantages:

1, duplex bearing reasonable selection has satisfied the designing requirement of the large and high pass torque of bearing capacity, and with the bearing holder (housing, cover) of bearing fit on be designed with temperature sensor and vibration transducer, can the whole rotary components duty of Real-Time Monitoring.The lubricated employing forces spray lubrication mode and rational cooling system to be arranged, effectively guaranteed bearing life.

2, connect gearbox output shaft by expansion connecting sleeve, centering property is good, bearing capacity is high, transmitting torque is large, satisfied gear case often dismantles requirement, and can play the auxiliary seal effect.

3, adopt labyrinth sealing, the sealing of O RunddichtringO and rotary oil seal triplicity mode, sealing property is strong.

[description of drawings]

Figure l is structural representation of the present utility model;

Fig. 2 is the enlarged drawing of the utility model broken section.

[embodiment]

The rotary support structure of gear box test bed of wind generating set, it comprises tubular shaft 1, be provided with rotary oil seal assembly 3 between tubular shaft 1 and the gearbox high-speed output shaft 2, one end of tubular shaft 1 connects expansion connecting sleeve 5 by driving flange 4, and expansion connecting sleeve inner hole surface 51 cooperates swelling with gearbox high-speed output shaft 2.The outer rear end seal cover 6 that is arranged with of tubular shaft 1, rear end seal cover 6 is connected with gear case, is provided with bearing holder (housing, cover) 7 between tubular shaft 1 and the rear end seal cover 6, is provided with bearing 8 between bearing holder (housing, cover) 7 and the tubular shaft 1.Tubular shaft 1 is horn shape, and bearing 8 comprises the deep groove ball bearing 81 that is located at tubular shaft heavy caliber periphery and the cylinder roller bearing 82 that is located at the small-bore periphery of tubular shaft.

Bearing holder (housing, cover) 7 the top be provided with inlet nozzle 71 and oil inlet passage 72, the bottom of bearing holder (housing, cover) 7 is provided with oil discharge passage 73 and spill port 74, lubricating oil enters from the inlet nozzle 71 at top, through flowing into oil discharge passage 73 behind the oil inlet passage 72, again through spill port 74 oil returns to rear end seal cover 6.

Inlet nozzle 71 comprises the oil inlet pipe 711 that is inserted into space 9 between tubular shaft 1 and the bearing holder (housing, cover) 7, and the outside of oil inlet pipe 711 is provided with oil inlet pipe lid 712, and oil inlet pipe lid 712 is provided with seal head 713.

Inner seal ring 11, sealing bush 12, outer seal ring 13 and driving flange 4 common labyrinth seal, the good airproof performances of forming.

In addition, be furnished with shock sensor 15, temperature sensor mounting hole site 10 on the bearing holder (housing, cover), be convenient to the whole rotary components duty of Real-Time Monitoring.

Claims

1. The rotating support structure of the wind turbine gearbox test bench is characterized in that it includes a hollow shaft (1), and one end of the hollow shaft (1) is connected to the expansion joint sleeve (5) through the transmission flange (4). The inner hole surface (51) of the connecting sleeve cooperates with the high-speed output shaft (2) of the gearbox to expand tightly, and a rotating oil seal assembly (3) is arranged between the hollow shaft (1) and the high-speed output shaft (2) of the gearbox, and the hollow shaft (1 ) is provided with a rear sealing cover (6), which is connected to the gearbox, and a bearing sleeve (7) is provided between the hollow shaft (1) and the rear sealing cover (6). A bearing (8) is provided between (7) and the hollow shaft (1).

2. The rotating support structure of the wind turbine gearbox test bench according to claim 1, characterized in that the hollow shaft (1) is in the shape of a trumpet, and the bearing (8) includes a deep shaft arranged on the outer periphery of the large diameter of the hollow shaft. Groove ball bearings (81) and cylindrical roller bearings (82) located at the small diameter periphery of the hollow shaft.

3. The rotating support structure of the wind turbine gearbox test bench according to claim 1, characterized in that the top of the bearing sleeve (7) is provided with an oil inlet nozzle (71) and an oil inlet channel (72), and the bearing The bottom of the sleeve (7) is provided with an oil outlet channel (73) and an oil return hole (74). The lubricating oil enters from the oil inlet nozzle (71) on the top, and flows into the oil outlet channel (73) after passing through the oil inlet channel (72). Then return the oil to the rear end sealing cover (6) through the oil return hole (74).

4. The rotating support structure of the wind turbine gearbox test bench according to claim 3, characterized in that the oil inlet nozzle (71) is inserted into the gap between the hollow shaft (1) and the bearing sleeve (7) ( 9) The oil inlet pipe (711), the outer side of the oil inlet pipe (711) is provided with an oil inlet pipe cover (712), and the oil inlet pipe cover (712) is provided with a sealing head (713). the