CN202451792U - High speed class combined seal oil return mechanism in main wind power gear box - Google Patents

High speed class combined seal oil return mechanism in main wind power gear box Download PDF

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Publication number
CN202451792U
CN202451792U CN2012200615002U CN201220061500U CN202451792U CN 202451792 U CN202451792 U CN 202451792U CN 2012200615002 U CN2012200615002 U CN 2012200615002U CN 201220061500 U CN201220061500 U CN 201220061500U CN 202451792 U CN202451792 U CN 202451792U
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CN
China
Prior art keywords
cover plate
main shaft
oil
casing
oil pocket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012200615002U
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Chinese (zh)
Inventor
傅珺
牛国伟
董阳阳
陈晓爱
刘海滨
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.)
TIANJIN CITY XIANGWEI TRANSMISSIONS EQUIPMENT CO Ltd
Original Assignee
TIANJIN CITY XIANGWEI TRANSMISSIONS EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN CITY XIANGWEI TRANSMISSIONS EQUIPMENT CO Ltd filed Critical TIANJIN CITY XIANGWEI TRANSMISSIONS EQUIPMENT CO Ltd
Priority to CN2012200615002U priority Critical patent/CN202451792U/en
Application granted granted Critical
Publication of CN202451792U publication Critical patent/CN202451792U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a high speed class combined seal oil return mechanism in a main wind power gear box, which includes a box body, a main shaft and an upper cover plate, wherein the main shaft is installed in the box body and extends out of the outer end of the box body to package the upper cover plate; and a shaft sleeve is sleeved at a part where the main shaft is mounted with the upper cover plate. The high speed class combined seal oil return mechanism is characterized by further including a lower cover plate, an oil retainer, a first oil slinger, a second oil slinger, a rotary seal ring and a V-type dust-proof seal. The high speed class combined seal oil return mechanism in the main wind power gear box has a scientific and reasonable structural design, has the four-stage sealing and oil return protection functions, effectively avoids the leakage of the main shaft of the gear box, has the advantage of convenience for replacement, and greatly reduces the repair and maintenance cost of the main wind power gear box.

Description

Wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism
Technical field
The utility model relates to the gear-box of wind power equipment, particularly a kind of wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism.
Background technique
Wind-power electricity generation is compared with traditional thermal power generation, has the free of contamination advantage of generating, compares with hydroelectric power, has that the capital construction cost is low, floor space is little, a maintaining advantage easily.Also there is certain potential safety hazard in the storage reservoir of large-scale hydroelectric power plant to downstream easily.In wind-driven generator, gear-box is the critical component of wind-driven generator, a large amount of production domesticization of wind-driven generator step-up gear of China's use at present.But existing gear-box high speed beam warp often leakage of oil occurs and causes machine halt trouble, need frequently carry out repair and replacement, and because the self structure of blower fan and the particularity in geographical position, frequent maintenance has caused the waste and the loss of huge manpower and financial resources.It is NBR oil sealing or single labyrinth seal that the high speed shaft sealing of existing gear-box is used.The rubber parts life-span of NBR oil sealing is short fragile, and damages the difficult replacing in back, and single labyrinth seal oil sealing effect is not good enough.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of existing technology, and a kind of wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism is provided, and adopts multi-sealedly can effectively guarantee sealing reliability, reaches thorough oil sealing effect.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism; Comprise casing, main shaft, upper cover plate; Main shaft is installed in the casing, and main shaft stretches out the outer end encapsulation upper cover plate of casing, suit axle sleeve between main shaft and upper cover plate; It is characterized in that: also comprise a lower cover plate; This lower cover plate is sleeved on the main shaft between casing and the upper cover plate, at the main shaft upper sleeve gasket dress flinger ring and first disc of this lower cover plate inner side surface, adorns second disc at the main shaft upper sleeve gasket of this lower cover plate outer side surface; Sealing suit rotating seal ring between upper cover plate and main shaft sleeve; Sealing suit V-type dust seal between upper cover plate exterior edge face and main shaft sleeve, the flinger ring and first disc are engaged in jointly and form first oil pocket between flinger ring inboard and the casing, form second oil pocket between the outer side surface of flinger ring, first disc and the lower cover plate inner side surface; Form the 3rd oil pocket between second disc and the lower cover plate outer side surface, first oil pocket, second oil pocket, the 3rd oil pocket all with casing on made spill port be communicated with; Form the 4th oil pocket between main shaft sleeve, rotating seal ring and the lower cover plate, the return tube that the 4th oil pocket is installed through upper cover plate is communicated with casing.
And the gap between described flinger ring, first disc, second disc and the main shaft is 1mm.
And described flinger ring bottom is shaped on return opening, and said first oil pocket is communicated with the made spill port of casing through this return opening.
And the seam bottom of described lower cover plate is shaped on return opening, and said second oil pocket is communicated with the made spill port of casing through this return opening.
And described upper cover plate bottom is shaped on oil-return groove, and said the 3rd oil pocket is communicated with the made spill port of casing through this oil-return groove.
The advantage and the good effect of the utility model are:
The combination seal oil return mechanism scientific structure design of the utility model is reasonable, has quadruple sealing and oil return safeguard function, can effectively stop gear-box main shaft seepage, reaches thorough oil sealing effect.And have the outstanding advantage of being convenient to installing and replacing, significantly reduce maintenance, the maintenance cost of wind-powered electricity generation main-gear box.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the rotating seal ring of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done further to detail through specific embodiment.Following examples are descriptive, are not determinate, can not limit the protection domain of the utility model with this.
A kind of wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism comprises casing 18, main shaft 19, upper cover plate 5, and main shaft is installed in the casing, and main shaft stretches out the outer end encapsulation upper cover plate of casing, suit axle sleeve 8 between main shaft and upper cover plate.
The innovation part of this combination seal oil return mechanism is: also comprise a lower cover plate 2, this lower cover plate is sleeved on the main shaft between casing and the upper cover plate.The main shaft upper sleeve gasket dress flinger ring 1 and first disc 3 at this lower cover plate inner side surface; Adorn second disc 4 at the main shaft upper sleeve gasket of this lower cover plate outer side surface; Sealing suit rotating seal ring 6 between upper cover plate and main shaft sleeve, sealing suit V-type dust seal 7 between upper cover plate exterior edge face and main shaft sleeve.The flinger ring and first disc are engaged in jointly and form first oil pocket 15 between flinger ring inboard and the casing; Form second oil pocket 13 between the outer side surface of flinger ring, first disc and the lower cover plate inner side surface; Form between second disc and the lower cover plate outer side surface the 3rd oil pocket 11, the first oil pockets, second oil pocket, the 3rd oil pocket all with casing on made spill port 17 be communicated with; The return tube 10 that formation the 4th oil pocket 9, the four oil pockets are installed through upper cover plate between main shaft sleeve, rotating seal ring and the lower cover plate is communicated with casing.
Gap between flinger ring, first disc, second disc and the main shaft is 1mm.The flinger ring bottom is shaped on return opening 16, and said first oil pocket is communicated with the made spill port of casing through this return opening.The seam bottom of lower cover plate is shaped on return opening 14, and said second oil pocket is communicated with the made spill port of casing through this return opening.The upper cover plate bottom is shaped on oil-return groove 12, and said the 3rd oil pocket is communicated with the made spill port of casing through this oil-return groove.
The working principle of this combination seal oil return mechanism is:
Flinger ring is enclosed in oil in first oil pocket, and through spill port on the casing oil is returned in the casing; First disc will be enclosed in through the oil of first oil pocket in second oil pocket, and through spill port on the casing oil returned in the casing; Second disc will be enclosed in through the oil of second oil pocket in the 3rd oil pocket, and through spill port on the casing oil returned in the casing; Rotating seal ring will be enclosed in through the oil of the 3rd oil pocket in the 4th oil pocket, and through the return tube of upper cover plate below oil returned in the casing, and V-type has been sealed dustproof effect and has been easy to and changed.Through above-mentioned quadruple sealing and oil return, effectively guarantee gear-box main shaft seal reliability, reach thorough oil sealing effect.
Although disclose the embodiment and the accompanying drawing of the utility model for the purpose of illustration; But it will be appreciated by those skilled in the art that: in spirit that does not break away from the utility model and accompanying claims and scope; Various replacements, variation and modification all are possible; Therefore, the scope of the utility model is not limited to embodiment and the disclosed content of accompanying drawing.

Claims (5)

1. wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism; Comprise casing, main shaft, upper cover plate; Main shaft is installed in the casing, and main shaft stretches out the outer end encapsulation upper cover plate of casing, suit axle sleeve between main shaft and upper cover plate; It is characterized in that: also comprise a lower cover plate; This lower cover plate is sleeved on the main shaft between casing and the upper cover plate, at the main shaft upper sleeve gasket dress flinger ring and first disc of this lower cover plate inner side surface, adorns second disc at the main shaft upper sleeve gasket of this lower cover plate outer side surface; Sealing suit rotating seal ring between upper cover plate and main shaft sleeve; Sealing suit V-type dust seal between upper cover plate exterior edge face and main shaft sleeve, the flinger ring and first disc are engaged in jointly and form first oil pocket between flinger ring inboard and the casing, form second oil pocket between the outer side surface of flinger ring, first disc and the lower cover plate inner side surface; Form the 3rd oil pocket between second disc and the lower cover plate outer side surface, first oil pocket, second oil pocket, the 3rd oil pocket all with casing on made spill port be communicated with; Form the 4th oil pocket between main shaft sleeve, rotating seal ring and the lower cover plate, the return tube that the 4th oil pocket is installed through upper cover plate is communicated with casing.
2. wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism according to claim 1, it is characterized in that: the gap between described flinger ring, first disc, second disc and the main shaft is 1mm.
3. wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism according to claim 1, it is characterized in that: described flinger ring bottom is shaped on return opening, and said first oil pocket is communicated with the made spill port of casing through this return opening.
4. wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism according to claim 1, it is characterized in that: the seam bottom of described lower cover plate is shaped on return opening, and said second oil pocket is communicated with the made spill port of casing through this return opening.
5. wind-powered electricity generation main-gear box high speed level combination seal oil return mechanism according to claim 1, it is characterized in that: described upper cover plate bottom is shaped on oil-return groove, and said the 3rd oil pocket is communicated with the made spill port of casing through this oil-return groove.
CN2012200615002U 2012-02-22 2012-02-22 High speed class combined seal oil return mechanism in main wind power gear box Expired - Fee Related CN202451792U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200615002U CN202451792U (en) 2012-02-22 2012-02-22 High speed class combined seal oil return mechanism in main wind power gear box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200615002U CN202451792U (en) 2012-02-22 2012-02-22 High speed class combined seal oil return mechanism in main wind power gear box

Publications (1)

Publication Number Publication Date
CN202451792U true CN202451792U (en) 2012-09-26

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CN2012200615002U Expired - Fee Related CN202451792U (en) 2012-02-22 2012-02-22 High speed class combined seal oil return mechanism in main wind power gear box

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711879A (en) * 2014-01-17 2014-04-09 国电联合动力技术(包头)有限公司 Mechanical labyrinth sealing structure for wind power gear box
CN106641203A (en) * 2016-12-28 2017-05-10 南京高速齿轮制造有限公司 Sealing structure on input shaft and output shaft aiming at gear box used for aerogenerator
CN110131392A (en) * 2019-04-05 2019-08-16 杭州前进齿轮箱集团股份有限公司 A kind of wind turbine gearbox slip ring tube seal structure
CN112943900A (en) * 2021-01-28 2021-06-11 中车青岛四方机车车辆股份有限公司 Protector for replacing oil scraper ring, disassembling and assembling platform and oil scraper ring replacing method
CN115978171A (en) * 2022-12-21 2023-04-18 南京高精轨道交通设备有限公司 Gear box oil return sealing structure, gear box and gear box oil return method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711879A (en) * 2014-01-17 2014-04-09 国电联合动力技术(包头)有限公司 Mechanical labyrinth sealing structure for wind power gear box
CN106641203A (en) * 2016-12-28 2017-05-10 南京高速齿轮制造有限公司 Sealing structure on input shaft and output shaft aiming at gear box used for aerogenerator
CN110131392A (en) * 2019-04-05 2019-08-16 杭州前进齿轮箱集团股份有限公司 A kind of wind turbine gearbox slip ring tube seal structure
CN112943900A (en) * 2021-01-28 2021-06-11 中车青岛四方机车车辆股份有限公司 Protector for replacing oil scraper ring, disassembling and assembling platform and oil scraper ring replacing method
CN112943900B (en) * 2021-01-28 2022-05-31 中车青岛四方机车车辆股份有限公司 Protector for replacing oil scraper ring, disassembling and assembling platform and oil scraper ring replacing method
CN115978171A (en) * 2022-12-21 2023-04-18 南京高精轨道交通设备有限公司 Gear box oil return sealing structure, gear box and gear box oil return method
CN115978171B (en) * 2022-12-21 2023-09-01 南京高精轨道交通设备有限公司 Gear box oil return sealing structure, gear box and gear box oil return method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120926

Termination date: 20170222