CN2893310Y

CN2893310Y - Wind power generator booster gear box

Info

Publication number: CN2893310Y
Application number: CNU2006200684774U
Authority: CN
Inventors: 刘建国; 袁包钢; 王朝阳; 朱江平
Original assignee: Nanjing High Speed Gear Manufacturing Co Ltd
Current assignee: Nanjing High Speed Gear Manufacturing Co Ltd
Priority date: 2006-01-16
Filing date: 2006-01-16
Publication date: 2007-04-25
Anticipated expiration: 2016-01-16

Abstract

The utility model relates to a speed adding gear box in a wind power generator and comprises a box, a solar wheel, a planet frame, a planet axis, a planet wheel, a transition gear axis, and an output gear axis. The utility model is characterized in that the transmission axis and the output gear axis both adopt two bearing supports; the lower box part is provided with a machine pump; the box, the planet frame, and the planet axis are provided with a lubricate channel respectively; and the lubricate channels are communicated with bearing installation points. The utility model has the advantages of that the box is divided into a torque force arm, an upper box, and a lower box, making the disassembly of the gear box more convenient; at the same time, the inner gear ring is taken as a part of the box, reducing the entire weight of the gear box and easing the processing; the transition gear, the wheel axis, and the output axis all adopts three bearing supports, increasing the loading capacity of the gear box; the gear box is arranged with a machine pump, providing lubricates for the gear box at any turning of the gear box; and the planet wheel axis adopts forced lubricating, which greatly increases the reliability of the gear box.

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.

The inventor once on October 12nd, 2004 to Patent Office of the People's Republic of China with same subject application utility model patent, the patent No. is 200420080174.5, after this patent is implemented, we find, for low power speed-increasing gearbox of wind driven generator, tangible good effect is arranged really, at powerful speed-increasing gearbox of wind driven generator, lubricated and the transition gear of each bearing, the bearing capacity of output shaft really await further perfect.

Summary of the invention

The purpose of this utility model is: at step-up gear, especially 200420080174.5 patents are used the problem of bearing capacity of lubricated and transition gear, the output shaft of each bearing that need solve in more powerful occasion, and a kind of new speed-increasing gearbox of wind driven generator is provided.

The purpose of this utility model is achieved in that a kind of speed-increasing gearbox of wind driven generator, comprise casing, sun gear, planet wheel, output shaft, wherein: casing comprises toggle, upper box and lower box, be provided with ring gear between toggle and the upper box, toggle, ring gear, upper box and lower box are connected by bolt; Input planet carrier, sun gear, gearwheel concentric, the input planet carrier by Bearing Installation between toggle and upper and lower casing, its input end passes upper box, gearwheel, transition gear, output shaft are installed in parallel between upper box and the lower box by bearing, the output terminal of output shaft passes toggle, transition gear comprises large and small two transition gears of coaxial setting, and output 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 gearwheel; Little transition gear on gearwheel and the transition gear axle often meshes, and great transition gear on the transition gear axle and the small gear on the output shaft often mesh; Input planet carrier and upper box junction and output shaft and toggle junction are equipped with seal ring, it is characterized in that: transition gear axle, output gear shaft all adopt three bearings, lower box is provided with mechanical pump, casing, planet carrier, planet axis are provided with oil leab, and oil leab communicates with the Bearing Installation point.

In the utility model, each planet wheel is installed in respectively on even three positioning shafts that are provided with of input planet carrier periphery by bearing, and Bearing Installation point communicates with oil leab.Described bearing is a cylindrical roller bearing, or full roller bearing, or tapered roller bearing, or spheric roller bearing.

In the utility model, the input end of input planet carrier can be provided with the pressure removal hole.

In the utility model, described seal ring comprises flinger ring, disc and dust ring.

In the utility model, gear-box is provided with mechanical pump.

Advantage of the present utility model is: casing is divided into toggle, upper box and lower 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; Transition gear axle, output gear shaft all adopt three bearings, have improved the bearing capacity of gear-box; Gear-box is provided with mechanical pump, can provide lubricant oil for gear-box under any rotation of gear-box; Planet wheel bearing adopts pressure lubrication, has so just improved the reliability of gear-box greatly.

Description of drawings

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

Fig. 2 is that the A of Fig. 1 is to schematic representation.

Among the figure: 1, input planet carrier, 2, toggle, 3, planet axis, 4, planet wheel, 5, ring gear, 6, sun gear, 7, upper box, 8, lower box, 9, splined shaft, 10, gearwheel, 11, the great transition gear, 12, the transition gear axle, 13, output gear shaft, 14, mechanical pump, 15, bearing, 16, removal hole, 17, oil duct.

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.

By Fig. 1 Fig. 2 as seen, casing of the present utility model comprises toggle 2, upper box 7 and lower box 8, is provided with ring gear 5 between toggle 2 and upper box 7, the lower box 8, and toggle 2, ring gear 5, upper box 7 and lower box 8 are connected by bolt; Input planet carrier 1, sun gear 6, gearwheel 10 three's concentrics, input planet carrier 1 is installed in toggle 2 and upper box 7 by bearing 15, between the lower box 8, its input end passes toggle 2, gearwheel 10, great transition gear 11, transition gear axle 12, output gear shaft 13 is installed in parallel between upper box 7 and the lower box 8 by bearing 15, wherein, transition gear axle 12, output gear shaft 13 supports by three bearings 15, be installed in parallel between upper box 7 and the lower box 8, the output terminal of output gear shaft 13 passes upper box 7, great transition gear 11 is installed on the transition gear axle 12 that is provided with little transition gear, and output gear shaft 13 is provided with small gear; Input planet carrier 1 periphery evenly is provided with three planet wheels 4, and planet wheel 4 often meshes with ring gear 5, sun gear 6 simultaneously; The end of sun gear 6 is provided with spline and is connected with splined shaft 9; Little transition gear on gearwheel 10 and the transition gear axle 12 often meshes, and the great transition gear 11 on the transition gear axle 12 often meshes with the small gear on the output gear shaft 13; Input planet carrier 1 is equipped with seal arrangement with toggle 2 junctions and output gear shaft 13 with upper box 7 junctions; Mechanical pump 14 is installed on the casing, and mechanical pump 14 provides lubricant oil by oil duct 17 for each bearing 15.In the present embodiment, each planet wheel 4 is installed in respectively on even three planet axis 3 that are provided with of input planet carrier 1 periphery by bearing 15, and the input end of input planet carrier 1 also is provided with pressure removal hole 16.During concrete enforcement, described bearing 15 can adopt cylindrical roller bearing, or full roller bearing, or tapered roller bearing; The planetary stage speed ratio is 5～6, and it is 4～5 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.

During actual the use, the kinetic energy that wind-force forms is by 1 input of input planet carrier, planet wheel 4 is rotated around sun gear 6, because planet wheel 4 often meshes with ring gear 5, sun gear 6 simultaneously, make sun gear 6 produce rotation, and drive gearwheel 10 and rotates synchronously, drive output gear shafts 13 high speed rotating by transition gear axle 12, great transition gear 11 then, at last by output gear shaft 13 drive generator for electricity generation.In the work, the lubricant oil in the lubricating oil tank can provide lubricant oil for each bearing 15 by oil duct 17 under the effect of mechanical pump 14.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 1 by pressure removal hole 16.

Claims

1, a kind of speed-increasing gearbox of wind driven generator, comprise casing, sun gear, planet wheel, output shaft, wherein: casing comprises toggle, upper box and lower box, is provided with ring gear between toggle and the upper box, and toggle, ring gear, upper box and lower box are connected by bolt; Input planet carrier, sun gear, gearwheel concentric, the input planet carrier by Bearing Installation between toggle and upper box, its input end passes upper box, gearwheel, transition gear, output shaft are installed in parallel between upper box and the lower box by bearing, the output terminal of output shaft passes toggle, transition gear comprises large and small two transition gears of coaxial setting, and output 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 gearwheel; Little transition gear on gearwheel and the transition gear axle often meshes, and great transition gear on the transition gear axle and the small gear on the output shaft often mesh; Input planet carrier and preceding casing junction and output shaft and rear box junction are equipped with seal ring, it is characterized in that: transition gear axle, output gear shaft all adopt three bearings, lower box is provided with mechanical pump, casing, planet carrier, planet axis are provided with oil leab, and oil leab communicates with the Bearing Installation point.

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 positioning shafts that are provided with of input planet carrier periphery by bearing, and Bearing Installation point communicates with oil leab.

3, speed-increasing gearbox of wind driven generator according to claim 2 is characterized in that: described bearing is a cylindrical roller bearing, or full roller bearing, or tapered 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 ring comprises flinger ring, disc and dust ring.

6, speed-increasing gearbox of wind driven generator according to claim 1, it is characterized in that: gear-box is provided with mechanical pump.