CN206439377U - The lubrication and seal and drive mechanism of wind power generating variable pitch gearbox - Google Patents

The lubrication and seal and drive mechanism of wind power generating variable pitch gearbox Download PDF

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Publication number
CN206439377U
CN206439377U CN201621457988.5U CN201621457988U CN206439377U CN 206439377 U CN206439377 U CN 206439377U CN 201621457988 U CN201621457988 U CN 201621457988U CN 206439377 U CN206439377 U CN 206439377U
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CN
China
Prior art keywords
lip
seal
lubrication
drive mechanism
wind power
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Active
Application number
CN201621457988.5U
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Chinese (zh)
Inventor
管益旭
陈武
邱模强
仇博文
李冬会
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing High Speed and Accurate Gear Group Co Ltd
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Nanjing High Speed Gear Manufacturing Co Ltd
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Priority to CN201621457988.5U priority Critical patent/CN206439377U/en
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  • General Details Of Gearings (AREA)
  • Sealing Of Bearings (AREA)

Abstract

The utility model is related to the lubrication and seal and drive mechanism of a kind of wind power generating variable pitch gearbox, including upper lower box, input side lubrication and seal and drive mechanism, reduction planetary gear teeth wheel construction, outlet side lubrication and seal and drive mechanism, it is characterised in that:Upper box is furnished with mounting flange, and described input side lubrication sealing structure uses three lip combined frame oil sealings, and input shaft is supported in the mounting flange of upper box by deep groove ball bearing.

Description

The lubrication and seal and drive mechanism of wind power generating variable pitch gearbox
Technical field
The utility model is related to a kind of wind power generating variable pitch gearbox, is especially for the high rotating speed of input shaft, oil sealing Variable propeller gearbox under internal and external environment cleannes difference operating mode.
Background technology
Variable propeller gearbox of wind power generator is one of wind power generating set critical component, and every blade is equipped with a change oar tooth Roller box, when wind-force changes, can adjust blade angle, it is ensured that maximum energy be obtained, in addition in the case of typhoon Blower fan can be protected.General blade is monolithic construction, and variable paddle speed reducer is arranged on root of blade close to the position of hub centre.
With flourishing for wind-power electricity generation in recent years, the construction of blade becomes diversification, and this means that pitch gear Case will also change with the change of blade angle adjustment frequency.
Traditional variable propeller gearbox lubricates and encapsulation scheme is such:When blade blade tip is located at more than horizontal direction, Pitch gear carton upside down, lubricating oil flows down lubrication deep groove ball bearing.Two skeleton oil seal lubricating oil.Two oil sealing grease lubrication, Ensure service life.Outside framework oil seal between two output bearings had both played the effect of seal case internal gear oil, and big bearing is sealed again Lubricating grease effect.Under high rotating speed, high commutating frequency, clean environment degree difference operating mode, if also using the sealing of conventional gearbox Mode, it is possible to occur gear, bearing etc. lubrication it is insufficient, or oil leak risk.
Nowadays the adjustment frequency more and more higher of major blower fan producers blade of wind-driven generator, rotation speed requirements more and more higher. This input rotating speed for also resulting in variable propeller gearbox is high and rotating frequency is high.The rotating frequency of some fan blades has increased 20 times are added, this input shaft part to variable propeller gearbox and sealing propose huge challenge.Rotating oil film is difficult generation, Commutation moment can make oil sealing dry friction, significant losses oil sealing life-span.Gear-box internal lubrication oil one section of time limit of use time, can go out Existing oil product cleannes are poor, the situation that particle increases, and there are baneful influence in these life-spans to reinforced seal.This is accomplished by us to height Variable propeller gearbox seal box lubrication under rotating speed, high commutating frequency, clean environment degree difference operating mode carries out special design.
Utility model content
The purpose of this utility model is:It is all higher for variable propeller gearbox input rotating speed and commutating frequency, and environment There is provided one kind for a series of problems, such as cleannes are poor.
What the purpose of this utility model was realized in:A kind of lubrication and seal of wind power generating variable pitch gearbox and transmission are tied Structure, including upper lower box, input side lubrication and seal and drive mechanism, reduction planetary gear teeth wheel construction, outlet side lubrication and seal and Drive mechanism, it is characterised in that:Upper box is furnished with mounting flange, and described input side lubrication sealing structure combines bone using three lips Frame oil sealing, input shaft is supported in the mounting flange of upper box by deep groove ball bearing.
In the utility model:Secondary sealing lip, primary seal lip, the lip of major-minor sealing lip are provided with three lip combined frame oil sealings Cabinets cavity is pointed to, the lip of primary seal lip is provided with spring, while setting up the opposite dust excluder lips of lip.
In the utility model:Lip in three described lip combined frame oil sealings is made using fluorubber.
In the utility model:Output shaft is supported in lower box by a pair of size push-and-pull bearings, and outside framework oil seal is located at size Between push-and-pull bearing.
The utility model advantage is:The utility model is all higher for input rotating speed and commutating frequency, and environment is clear The characteristics of cleanliness difference, input oil sealing is used into three lip combination oil seals, the combination oil seal is sealed by secondary sealing lip and primary seal lip Composition, the lip band spring of primary seal lip, can improve sealing effectiveness, secondary sealing lip can be with lubricating oil in filter cavity Grain thing, prevents particulate matter from entering primary seal lip and influenceing its sealing effectiveness, the lip of primary seal lip also has a dust excluder lips effective Dust-proof infiltration is prevented, the sealing effectiveness of primary seal lip is influenceed.Because lip material selects the fluorubber of wear-resistance and oil-resistance better performances Material makes, and its service life is relatively long.The utility model compact conformation, it is easy to maintenance.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the partial enlarged drawing of I in Fig. 1.
In figure:1st, mounting flange, 2, three lip combined frame oil sealings, 3, input shaft spring bearing, 4, input shaft, 5, ring gear Planetary gear train, 6, upper box, 7, lower box, 8, output outside framework oil seal, 9, small push-and-pull bearing, 10, output shaft, 11, big push-pull shaft Hold, 12, secondary sealing lip, 13, primary seal lip, 14, dust excluder lips, 15, spring.
Embodiment
Accompanying drawing discloses the concrete structure of the utility model embodiment without limitation, new to this practicality below in conjunction with the accompanying drawings Type is further described.
As seen from Figure 1, the utility model includes upper box 6, lower box 7, input side lubrication and seal and drive mechanism, deceleration Planetary gear wheel construction, outlet side lubrication and seal and drive mechanism, wherein:Mounting flange 1 is provided with upper box 6, it is described Input side lubrication sealing structure use three lip combined frame oil sealings 2, input shaft is supported in upper box 6 by deep groove ball bearing 3 In mounting flange 1.Planetary gear train 5 is placed in upper box, and input shaft 4 is docked with the sun wheel shaft of planetary gear train 5.
In the present embodiment, output shaft 10 is supported in lower box 7 by big a pair push-and-pull bearing 11 and small push-and-pull bearing 9, Outside framework oil seal 8 is located between big push-and-pull bearing 11 and small push-and-pull bearing 9.
As seen from Figure 2:Secondary sealing lip 12, primary seal lip 13, the lip of major-minor sealing lip are provided with three lip combined frame oil sealings 2 Mouth points to cabinets cavity, and the lip of primary seal lip 13 is provided with spring 15, while setting up the opposite dust excluder lips of lip 14.
During specific implementation:Lip in three described lip combined frame oil sealings 2 is made using fluorubber.

Claims (4)

1. the lubrication and seal and drive mechanism of a kind of wind power generating variable pitch gearbox, including upper lower box, input side lubrication and seal With drive mechanism, reduction planetary gear teeth wheel construction, outlet side lubrication and seal and drive mechanism, it is characterised in that:Upper box is furnished with Mounting flange, described input side lubrication sealing structure uses three lip combined frame oil sealings, and input shaft is supported by deep groove ball bearing In the mounting flange of upper box.
2. the lubrication and seal and drive mechanism of wind power generating variable pitch gearbox according to claim 1, it is characterised in that:Three Secondary sealing lip is provided with lip combined frame oil sealing, primary seal lip, the lip of major-minor sealing lip points to cabinets cavity, primary seal lip Lip is provided with spring, while setting up the opposite dust excluder lips of lip.
3. the lubrication and seal and drive mechanism of wind power generating variable pitch gearbox according to claim 1, it is characterised in that:Institute Lip in the three lip combined frame oil sealings stated is made using fluorubber.
4. the lubrication and seal and drive mechanism of wind power generating variable pitch gearbox according to claim 1 or 2, its feature exist In:Output shaft is supported in lower box by a pair of size push-and-pull bearings, and outside framework oil seal is located between size push-and-pull bearing.
CN201621457988.5U 2016-12-28 2016-12-28 The lubrication and seal and drive mechanism of wind power generating variable pitch gearbox Active CN206439377U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621457988.5U CN206439377U (en) 2016-12-28 2016-12-28 The lubrication and seal and drive mechanism of wind power generating variable pitch gearbox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621457988.5U CN206439377U (en) 2016-12-28 2016-12-28 The lubrication and seal and drive mechanism of wind power generating variable pitch gearbox

Publications (1)

Publication Number Publication Date
CN206439377U true CN206439377U (en) 2017-08-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621457988.5U Active CN206439377U (en) 2016-12-28 2016-12-28 The lubrication and seal and drive mechanism of wind power generating variable pitch gearbox

Country Status (1)

Country Link
CN (1) CN206439377U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108087527A (en) * 2017-12-28 2018-05-29 南京高速齿轮制造有限公司 The sealing structure of wind power generating variable pitch gearbox
CN110425093A (en) * 2019-08-29 2019-11-08 南京高速齿轮制造有限公司 A kind of wind power generating set barring gear

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108087527A (en) * 2017-12-28 2018-05-29 南京高速齿轮制造有限公司 The sealing structure of wind power generating variable pitch gearbox
CN110425093A (en) * 2019-08-29 2019-11-08 南京高速齿轮制造有限公司 A kind of wind power generating set barring gear

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GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20191008

Address after: No. 30 Houjiao Road, Jiangning District, Nanjing, Jiangsu Province, 210000 (Jiangning High-tech Park)

Co-patentee after: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd.

Patentee after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd.

Address before: 211100, No. 1 East Tianyuan Road, Jiangning Science Park, Jiangning District, Jiangsu, Nanjing

Patentee before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200515

Address after: No. 30 Houjiao Road, Jiangning District, Nanjing, Jiangsu Province, 210000 (Jiangning High-tech Park)

Patentee after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd.

Address before: No. 30 Houjiao Road, Jiangning District, Nanjing, Jiangsu Province, 210000 (Jiangning High-tech Park)

Co-patentee before: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd.

Patentee before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220905

Address after: No.79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province, 210000

Patentee after: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd.

Address before: 210000 No.30, Houjiao Road, Jiangning District, Nanjing, Jiangsu Province

Patentee before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd.