CN2739383Y

CN2739383Y - Wind-pill generator speed increasing gearbox

Info

Publication number: CN2739383Y
Application number: CNU2004200801745U
Authority: CN
Inventors: 刘建国; 袁包钢; 戴莹; 朱江平
Original assignee: Nanjing High Speed Gear Manufacturing Co Ltd
Current assignee: Nanjing High Speed Gear Manufacturing Co Ltd
Priority date: 2004-10-12
Filing date: 2004-10-12
Publication date: 2005-11-09
Anticipated expiration: 2014-10-12

Abstract

The utility model relates to a wind power generator speed increasing gearbox. The box body of the wind power generator speed increasing gearbox comprises a front box body, a middle box body, and a rear box body. An inner gear ring, an input planetary rack, a solar wheel, and a large gear coaxial core are provided between the front box body and the middle box body. The input planetary rack is installed between the front box body and the middle box body by a bearing, and the input end of the input planetary rack penetrates out the front box body. A large gear, a transition gear, and an output gear shaft are arranged in a triangle, and are installed between the middle box body and the rear box body in parallel by bearings. Sealed devices are arranged on the combining position of the input planetary rack and the front box body, and the combining position of the output gear shaft and the rear box body. The wind power generator speed increasing gearbox has the advantages that the box body is divided into the front box body, the middle box body, and the rear box body, and the wind power generator speed increasing gearbox is more convenient to be dismantled and installed; the inner gear ring is simultaneously used as the composing part of the box body, the weight of the wind power generator speed increasing gearbox is alleviated, and the wind power generator speed increasing gearbox is easy to be processed; A planetary wheel adopts two spherical surface roller bearings, in particular to after the spherical surface roller bearings are installed on a planetary rack by adopting filling columns, which not only increases carrying capacity, but also decreases installation space.

Description

Speed-increasing gearbox of wind driven generator

Technical field

The utility model relates to gear-box, especially a kind of speed-increasing gearbox of wind driven generator.

Background technique

Utilize wind-power electricity generation to compare, have the free of contamination advantage of generating, compare with hydroelectric power with traditional thermal power generation, have that the capital construction cost is low, floor space is little, maintaining is advantage easily, and for large-scale hydroelectric power plant, also there is certain potential safety hazard in storage reservoir to the downstream easily.In wind-driven generator, gear-box is the critical component of wind-driven generator, and the wind-driven generator step-up gear of China's use at present mainly solves by import, is generally overall structure, and the dismounting difficulty in case break down, can only be changed assembly, causes waste.

Summary of the invention

The purpose of this utility model is: at step-up gear, especially the speed-increasing gearbox of wind driven generator volume is bigger, and the practical problem that dismounting is inconvenient provides a kind of new speed-increasing gearbox of wind driven generator.

The purpose of this utility model is achieved in that a kind of wind-driven generator step-up gear, comprise casing, input planet carrier, sun gear, planet wheel, parallel-axes gears, output gear shaft, it is characterized in that: casing comprises preceding casing, middle casing and rear box, be provided with ring gear between preceding casing and the middle casing, preceding casing, ring gear, middle casing are connected by bolt with rear box; Input planet carrier, sun gear, gearwheel concentric, the input planet carrier by Bearing Installation between preceding casing and middle casing, its input end passes preceding casing, gearwheel, transition gear, output gear shaft are installed in parallel between middle casing and the rear box by bearing, and three is distribution triangular in shape, the output terminal of output gear shaft passes rear box, and transition gear comprises large and small two transition gears of coaxial setting, and output gear shaft is provided with small gear; Input planet carrier periphery evenly is provided with three planet wheels, and planet wheel often meshes with ring gear, sun gear simultaneously; The end of sun gear is provided with spline and is connected with splined shaft, drives gearwheel and rotates; Little transition gear on gearwheel and the transition gear often meshes, and great transition gear on the transition gear and the small gear on the output gear shaft often mesh; Input planet carrier and preceding casing junction and output gear shaft and rear box junction are equipped with seal arrangement.

Advantage of the present utility model is: casing is divided into preceding casing, middle casing and rear box, makes the gear-box dismounting convenient; Ring gear simultaneously as the constituent element of casing, has not only been alleviated the overall weight of gear-box, and processing easily; Planet wheel had both increased bearing capacity after adopting and adopting full-complement cylinder roller bearing to install on two spheric roller bearings, the especially planet carriers, had reduced installing space again.

Description of drawings

Fig. 1 is a kind of example structure schematic representation that the utility model relates to;

Fig. 2 is that seal arrangement is at the output terminal scheme of installation.

Among the figure: 1, preceding casing, 2, middle casing, 3, rear box, 4, ring gear, 5, planet wheel, 6, the input planet carrier, 7, sun gear, 8, gearwheel, 9, transition gear, 10, output gear shaft, 11, bearing, 12, seal arrangement, 13, flinger ring, 14, disc, 15, dust ring, 16, bearing pin, 17, pressure removal hole, 18, spill port, 19, splined shaft.

Embodiment

Accompanying drawing is nonrestrictive to disclose the structural representation of a kind of specific embodiment that the utility model relates to, and the utility model will be further described below in conjunction with accompanying drawing.

As seen from Figure 1, casing of the present utility model comprises preceding casing 1, middle casing 2 and rear box 3, is provided with ring gear 4 between preceding casing 1 and the middle casing 2, and preceding casing 1, ring gear 4, middle casing 2 and rear box 3 are connected by bolt; Input planet carrier 6, sun gear 7, gearwheel 8 three's concentrics, input planet carrier 6 is installed between preceding casing 1 and the middle casing 2 by bearing 11, its input end passes preceding casing 1, gearwheel 8, transition gear 9, output gear shaft 10 are installed in parallel between middle casing 2 and the rear box 3 by bearing 11, the output terminal of output gear shaft 10 passes rear box 3, transition gear 8 comprises large and small two transition gears of coaxial setting, and output gear shaft 10 is provided with small gear; Input planet carrier 6 peripheries evenly are provided with three planet wheels 5, and planet wheel 5 often meshes with ring gear 4, sun gear 7 simultaneously; The end of sun gear 7 is provided with spline and is connected with splined shaft 19; Little transition gear on gearwheel 8 and the transition gear 9 often meshes, and great transition gear on the transition gear 9 and the small gear on the output gear shaft 10 often mesh; Input planet carrier 6 is equipped with seal arrangement 12 with preceding casing 1 junction and output gear shaft 10 with rear box 3 junctions.In the present embodiment, adopt full-complement cylinder roller bearing to install between preceding casing 1 and the middle casing 2 on the planet carrier 6, each planet wheel 5 is installed in respectively on even three bearing pins 16 that are provided with of input planet carrier 6 peripheries by two spheric roller bearing bearings 11, and the input end of input planet carrier 6 also is provided with pressure removal hole 17.During concrete enforcement, planet wheel and sun gear speed ratio are 5～6, and it is 3～4 that gearwheel and small offence are crossed gear ratio, and the speed ratio of small gear is 3～4 on great transition gear and the output gear shaft.

As seen from Figure 2, seal ring 12 described in the embodiment that the utility model relates to comprises flinger ring 13, disc 14 and dust ring 15, as shown in the figure, output gear shaft 10 is supported on the rear box 3 by bearing 11, the output terminal of output gear shaft 10 passes rear box 3 and is fitted with flinger ring 13, disc 14 and dust ring 15 from the inside to the outside successively in intersection, the inner ring of disc 14 and output gear shaft 10 drive fits, outer ring and rear box 3 Spielpassung, the casing 3 between flinger ring 13 and the disc 14 is provided with spill port 18.

During actual the use, the kinetic energy that wind-force forms is by 6 inputs of input planet carrier, planet wheel 5 is rotated around sun gear 7, because planet wheel 5 often meshes with ring gear 4, sun gear 7 simultaneously, make sun gear 7 produce rotation, and drive gearwheel 8 and rotates synchronously, drive output gear shafts 10 high speed rotating by transition gear 9 then, at last by output gear shaft 10 drive generator for electricity generation.In the time of need dismantling with wind driven generator principal shaft, can inject hydraulic oil, wind driven generator principal shaft is separated with the input end of input planet carrier 6 by pressure removal hole 17.

Claims

1, a kind of wind-driven generator step-up gear comprises casing, input planet carrier, sun gear, planet wheel, parallel-axes gears, output gear shaft, it is characterized in that:

A) casing comprises preceding casing, middle casing and rear box, is provided with ring gear between preceding casing and the middle casing, and preceding casing, ring gear, middle casing are connected by bolt with rear box;

B) input planet carrier, sun gear, gearwheel concentric, the input planet carrier by Bearing Installation between preceding casing and middle casing, its input end passes preceding casing, gearwheel, transition gear, output gear shaft are installed in parallel between middle casing and the rear box by bearing, and three is distribution triangular in shape, the output terminal of output gear shaft passes rear box, and transition gear comprises large and small two transition gears of coaxial setting, and output gear shaft is provided with small gear;

C) input planet carrier periphery evenly is provided with three planet wheels, and planet wheel often meshes with ring gear, sun gear simultaneously;

D) end of sun gear is provided with spline and is connected with splined shaft, drives gearwheel and rotates;

E) the little transition gear on gearwheel and the transition gear often meshes, and great transition gear on the transition gear and the small gear on the output gear shaft often mesh;

F) input planet carrier and preceding casing junction and output gear shaft and rear box junction are equipped with seal arrangement.

2, speed-increasing gearbox of wind driven generator according to claim 1 is characterized in that: each planet wheel is installed in respectively on even three bearing pins that are provided with of input planet carrier periphery by bearing.

3, speed-increasing gearbox of wind driven generator according to claim 2 is characterized in that: described bearing is full-complement cylinder roller bearing or spheric roller bearing.

4, speed-increasing gearbox of wind driven generator according to claim 1 and 2 is characterized in that: the input end of input planet carrier is provided with the pressure removal hole.

5, speed-increasing gearbox of wind driven generator according to claim 1 is characterized in that: described seal arrangement comprises flinger ring, disc and dust ring.