CN204512367U - The output terminal of wind driven generator yaw and variable propeller gearbox - Google Patents

The output terminal of wind driven generator yaw and variable propeller gearbox Download PDF

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Publication number
CN204512367U
CN204512367U CN201420839120.6U CN201420839120U CN204512367U CN 204512367 U CN204512367 U CN 204512367U CN 201420839120 U CN201420839120 U CN 201420839120U CN 204512367 U CN204512367 U CN 204512367U
Authority
CN
China
Prior art keywords
output terminal
box
supporting box
transmission shaft
final stage
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.)
Withdrawn - After Issue
Application number
CN201420839120.6U
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Chinese (zh)
Inventor
李苏东
陈武
夏权栋
杜树军
朱琰
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 Gear Manufacturing Co Ltd
Original Assignee
Nanjing High Speed Gear Manufacturing 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 Nanjing High Speed Gear Manufacturing Co Ltd filed Critical Nanjing High Speed Gear Manufacturing Co Ltd
Priority to CN201420839120.6U priority Critical patent/CN204512367U/en
Application granted granted Critical
Publication of CN204512367U publication Critical patent/CN204512367U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the output terminal of a kind of wind driven generator yaw and variable propeller gearbox, its output terminal casing comprises the rear box of final stage planetary gear train and the supporting box of transmission shaft, they are bolted, the output terminal of final stage planet carrier and the transmission shaft docking region seal space between rear box and supporting box; Rear box is provided with purge cock, and supporting box is provided with grease inlet; By bearings on the back shell, bearing is placed in lubricant oil to the output terminal of final stage planet carrier, and the outside of bearing is provided with framework type sealing ring; Supporting box is provided with two roller bearings, and grease inlet is between two roller bearings, and two roller bearings are all placed in lubricating grease, and their outside is provided with seal ring; One end of transmission shaft is passed through two roller bearings and is placed on seal space between rear box and supporting box, and docked with the internal spline of coupling by the external splines of end, the other end is placed in outside supporting box, and end is provided with actuation gear.

Description

The output terminal of wind driven generator yaw and variable propeller gearbox
Technical field
The utility model patent relates to the output terminal of a kind of wind driven generator yaw and variable propeller gearbox.
Background technique
Driftage and variable propeller gearbox are one of significant components of wind power generating set.Due to wind field mostly remote, have inconvenient traffic, area that physical environment is severe; And driftage variable propeller gearbox is arranged on from the cabin of tens meters, narrow space, difficult in maintenance; Along with blower fan is to maximization and the development of marine type, the weight and volume that driftage becomes oar is increasing, and it is more inconvenient to keep in repair.Once driftage variable propeller gearbox breaks down, blower fan may be caused to shut down for a long time, huge economic loss can be caused to owner.Therefore these propose very high requirement to the convenience that driftage variable propeller gearbox is safeguarded.
Existing driftage variable propeller gearbox is generally made up of reducing gear and output mechanism two large divisions.The entirety that reducing gear and output mechanism are installed as one; The slow speed turbine stage of reducing gear generally adopts NGW planetary structure, final stage planet carrier and output shaft adopt splined, output shaft is exporting on casing by two roller bearing supports, wherein, the lubricating system of the roller bearing that upper end is less is the same with final stage planetary stage parts, adopt oil lubrication, the roller bearing employing grease lubrication that lower end is larger.Meanwhile, in the middle of two roller bearings, outside framework oil seal is provided with, in order to isolate two kinds of different lubricant mediums.
Structure above has following obvious deficiency: gear-box reaches reducing gear and output mechanism two-part can influence each other, after one side breaks down, the opposing party may be caused also cannot normally to work, whole retarder when maintenance, all may be needed to pull down maintenance; In addition, due to gear-box overall weight and volume excessive, the hoisting weight of the on-the-spot loop wheel machine needed during maintenance and dismounting space and all larger, once the gross weight of retarder exceedes the crane capacity of on-the-spot loop wheel machine, or run into site space narrow and small when, namely cannot integral demounting and reinstalling, sometimes by part by manually breaking step by step and install, can only waste time and energy very much; In addition; in output mechanism, the oil sealing of sealing lubricating oil exports between roller bearing at two; just in case the oil sealing at this place damages; the roller bearing first pulling down upper end is needed before changing oil sealing; and generally cannot realize in maintenance sites, thus oil sealing cannot be changed, whole gear-box can only be changed ... above problem both increases maintenance time and cost; and may cause long downtimes, cause huge economic loss.
Therefore, how to optimize the structure of driftage variable propeller gearbox, improve the convenience of maintenance, especially reducing the difficulty of dismounting operation, is the heat subject paid close attention in the industry.But, even to this day, do not have the document of this respect to be seen in report.
Model utility content
The purpose of this utility model is, influence each other after breaking down for the reducing gear of current yawing speed reducer for wind power generation and variable propeller gearbox and output mechanism two-part, on-the-spot lifting and dismounting difficulty during maintenance, output shaft being used between two roller bearings the oil sealing of seal lubrication is on-the-spot cannot the practical problem of spot replace, the output terminal of yawing reducer and variable propeller gearbox is improved, the output terminal of a kind of new wind driven generator yaw and variable propeller gearbox is provided.
The purpose of this utility model is achieved in that the output terminal of a kind of wind driven generator yaw and variable propeller gearbox, the transmission shaft comprising output terminal casing, pass through the output terminal of the final stage planet carrier of seal ring, dock with the output terminal of final stage planet carrier, and output shaft spring bearing and seal ring, it is characterized in that:
A) the output terminal casing described in comprises the rear box of final stage planetary gear train and the supporting box of transmission shaft, rear box and supporting box are bolted, the output terminal of planet carrier and the transmission shaft docking region seal space between rear box and supporting box; Described rear box is provided with purge cock, and described supporting box is provided with grease inlet;
B) output terminal of final stage planet carrier passes through and by bearings in the rear casing, bearing is placed in lubricant oil, and the outside of bearing is provided with framework type sealing ring; Supporting box is provided with upper and lower two roller bearings, and on the supporting box of described grease nipple between upper and lower two roller bearings, two roller bearings are all placed in lubricating grease, and their outside is provided with seal ring;
C) one end of transmission shaft is passed through two roller bearings and is placed on seal space between rear box and supporting box, transmission shaft is docked with the internal spline of final stage planet carrier output terminal by the external splines of end, the other end is placed in outside supporting box, and end is provided with actuation gear.
In the utility model: upper and lower two roller bearings are positioned in supporting box by seam respectively, the transmission shaft being positioned at actuation gear one end is provided with annular boss, the transmission shaft of the other end is provided with screw thread, is furnished with the bearing lock nuts mated with screw thread, after transmission shaft passes through two roller bearings, annular boss is butted on the seal ring with end, is butted on the seal ring with end, forms integrally-built driving-shaft assembly after the locking nut of the other end is threaded onto the screw thread of coupling; After rear box and supporting box are bolted, the external splines of end part of driving shaft docks with the internal spline of final stage planet carrier output terminal.
In the utility model: rear box and supporting box connecting part are provided with the shared flange for the docking of output terminal casing and gear-box integral installation.
In the utility model: the flange of gear-box integral installation is located on supporting box.
The utility model has the advantage of: the output terminal of yawing reducer and variable propeller gearbox is improved, traditional integral type output terminal casing is divided into the rear box of final stage planetary gear train and the supporting box of transmission shaft, traditional output shaft is separated from gear-box and calls transmission shaft, seal space is formed with the region of docking of transmission shaft at the output terminal of planet carrier, parts are made to realize overall separation, relatively alleviate the weight of single assembly, the dismounting for gear-box provides very convenient condition.Output terminal due to final stage planet carrier passes through and by bearings in the rear casing, bearing is placed in lubricant oil, and the outside of bearing is provided with framework type sealing ring; Supporting box is provided with upper and lower two roller bearings, on the supporting box of described grease nipple between upper and lower two roller bearings, two roller bearings are all placed in lubricating grease, their outside is provided with seal ring, thus is that two separating components construct two different independent lubricating patterns.Due to, the transmission shaft being positioned at actuation gear one end is provided with annular boss, the transmission shaft of the other end is provided with screw thread, is furnished with the bearing lock nuts mated with screw thread, after transmission shaft passes through two roller bearings, annular boss is butted on the seal ring with end, is butted on the seal ring with end, makes transmission shaft can form completely independently parts after the locking nut of the other end is threaded onto the screw thread of coupling.
The utility model is for driftage and the contribution of variable propeller gearbox: greatly reduce reducing gear and output mechanism two-part break down after interactional probability, the as far as possible only maintenance and change the part broken down when gearbox fault; And realize two-part separately lifting and dismounting, greatly reduce the requirement to on-the-spot loop wheel machine and dismounting space; Oil sealing between final stage planet carrier and rear box also directly can be changed on reducing gear in scene.Thus greatly reduce engineering time, and blower fan can be allowed in a short period of time to recover normal operation, reduce the cost of maintenance, decrease the economic loss of owner.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the utility model.
Fig. 2 is the structural representation of the utility model the second embodiment.
Fig. 3 is the structural representation of the third embodiment of the utility model.
In figure: 1, the output terminal of final stage planet carrier; 2, bearing; 3, framework type sealing ring; 4, rear box; 5, supporting box; 6, transmission shaft; 7, seal ring; 8, upper roller bearing; 9, lower roller bearing; 10, seal ring; 11, bolt, 12, actuation gear; 13, purge cock; 14, grease inlet; 15, locking nut; 16, flange; 17, share flange.
Embodiment
Fig. 1, Fig. 2 and Fig. 3 individually disclose the concrete structure of different embodiment of the present utility model, are further described the utility model embodiment below in conjunction with accompanying drawing.
From Fig. 1, Fig. 2 and Fig. 3, the transmission shaft that they are all provided with output terminal casing, pass through the output terminal 1 of the final stage planet carrier of seal ring, dock with the output terminal 1 of final stage planet carrier, and output shaft spring bearing and seal ring, wherein: output terminal casing comprises the rear box 4 of final stage planetary gear train and the supporting box 5 of transmission shaft, rear box 4 is connected by bolt 11 with supporting box 5, and the output terminal 1 of planet carrier and transmission shaft 6 dock the seal space of region between rear box 4 and supporting box 5; Described rear box 4 is provided with purge cock 13, and described supporting box 5 is provided with grease inlet 14.The output terminal 1 of final stage planet carrier is passed through and is supported on described rear box 4 by bearing 2, and bearing 2 is placed in lubricant oil, and the outside of bearing 2 is provided with framework type sealing ring 3; Supporting box 5 is provided with roller bearing 8 and lower roller bearing 9, on the supporting box 5 of described grease inlet 14 between upper roller bearing 8 and lower roller bearing 9, upper roller bearing 8 and lower roller bearing 9 are all placed in lubricating grease, the outside of upper roller bearing 8 is provided with seal ring 7, and the outside of lower roller bearing 9 is provided with seal ring 10.
One end of transmission shaft 6 is passed through two roller bearings 9 and 8 and is placed on seal space between rear box 4 and supporting box 5, transmission shaft 6 is docked with the internal spline of final stage planet carrier output terminal 1 by the external splines of end, the other end is placed in outside supporting box 5, and end is provided with actuation gear 12.
In the present embodiment: upper roller bearing 8 and lower roller bearing 9 are positioned in supporting box 5 by seam respectively, the transmission shaft 6 being positioned at actuation gear 12 one end is provided with annular boss, the transmission shaft 6 of the other end is provided with screw thread, is furnished with the bearing lock nuts 15 mated with screw thread, after transmission shaft 6 passes through two roller bearings 8 and 9, annular boss is butted on the seal ring 10 with end, is butted on the seal ring 7 with end after the locking nut 15 of the other end is threaded onto the screw thread of coupling; After rear box 4 is connected by bolt 11 with supporting box 5, the external splines of transmission shaft 6 end docks with the internal spline of final stage planet carrier output terminal 1.
In the embodiment described in Fig. 2 and Fig. 3: the flange 16 for gear-box integral installation is located at supporting box 5.
During installation, can first transmission shaft 6 be passed through on the supporting box 5 between upper roller bearing 8 and lower roller bearing 9, seal ring 7 and seal ring 10 are installed, after being compressed by locking nut again, them are made to form an integrally-built driving-shaft assembly, lubricating grease is injected again by grease inlet 14, then fixed (as shown in Figure 1 structure) by the base of bolt 11 with rear box 4 and installation position, or first integrally-built driving-shaft assembly is fixed on the base of installation position by flange, reoffer bolt 11 and dock (as shown in Figure 2 structure) with rear box 4.
During maintenance, only need reverse operating that rear box 4 is separated with integrally-built driving-shaft assembly, decomposition maintenance is carried out to gear box structure, substantially reduces the workload of maintenance.

Claims (4)

1. the output terminal of a wind driven generator yaw and variable propeller gearbox, the transmission shaft comprising output terminal casing, pass through the output terminal of the final stage planet carrier of seal ring, dock with the output terminal of final stage planet carrier, and output shaft spring bearing and seal ring, it is characterized in that:
A) the output terminal casing described in comprises the rear box of final stage planetary gear train and the supporting box of transmission shaft, rear box and supporting box are bolted, the output terminal of planet carrier and the transmission shaft docking region seal space between rear box and supporting box; Described rear box is provided with purge cock, and described supporting box is provided with grease inlet;
B) output terminal of final stage planet carrier passes through and by bearings in the rear casing, bearing is placed in lubricant oil, and the outside of bearing is provided with framework type sealing ring; Supporting box is provided with upper and lower two roller bearings, and on the supporting box of described grease inlet between upper and lower two roller bearings, two roller bearings are all placed in lubricating grease, and their outside is provided with seal ring;
C) one end of transmission shaft is passed through two roller bearings and is placed on seal space between rear box and supporting box, transmission shaft is docked with the internal spline of final stage planet carrier output terminal by the external splines of end, the other end is placed in outside supporting box, and end is provided with actuation gear.
2. the output terminal of wind driven generator yaw according to claim 1 and variable propeller gearbox, it is characterized in that: upper and lower two roller bearings are positioned in supporting box by seam respectively, the transmission shaft being positioned at actuation gear one end is provided with annular boss, the transmission shaft of the other end is provided with screw thread, is furnished with the bearing lock nuts mated with screw thread, after transmission shaft passes through two roller bearings, annular boss is butted on the seal ring with end, be butted on the seal ring with end after the locking nut of the other end is threaded onto the screw thread of coupling, form integrally-built driving-shaft assembly; After rear box and supporting box are bolted, the external splines of end part of driving shaft docks with the internal spline of final stage planet carrier output terminal.
3. the output terminal of wind driven generator yaw according to claim 1 and 2 and variable propeller gearbox, is characterized in that: rear box and supporting box connecting part are provided with the shared flange for the docking of output terminal casing and gear-box integral installation.
4. the output terminal of wind driven generator yaw according to claim 3 and variable propeller gearbox, is characterized in that: the flange of gear-box integral installation is located on supporting box.
CN201420839120.6U 2014-12-26 2014-12-26 The output terminal of wind driven generator yaw and variable propeller gearbox Withdrawn - After Issue CN204512367U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420839120.6U CN204512367U (en) 2014-12-26 2014-12-26 The output terminal of wind driven generator yaw and variable propeller gearbox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420839120.6U CN204512367U (en) 2014-12-26 2014-12-26 The output terminal of wind driven generator yaw and variable propeller gearbox

Publications (1)

Publication Number Publication Date
CN204512367U true CN204512367U (en) 2015-07-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420839120.6U Withdrawn - After Issue CN204512367U (en) 2014-12-26 2014-12-26 The output terminal of wind driven generator yaw and variable propeller gearbox

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500703A (en) * 2014-12-26 2015-04-08 南京高速齿轮制造有限公司 Output end of wind driven generator yawing and pitch-varying gear box

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104500703A (en) * 2014-12-26 2015-04-08 南京高速齿轮制造有限公司 Output end of wind driven generator yawing and pitch-varying gear box
CN104500703B (en) * 2014-12-26 2017-03-29 南京高速齿轮制造有限公司 The outfan of wind driven generator yaw and variable propeller gearbox

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20150729

Effective date of abandoning: 20170329