CN203272441U - Connecting structure of engine room chassis and main shaft - Google Patents

Connecting structure of engine room chassis and main shaft Download PDF

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Publication number
CN203272441U
CN203272441U CN2013202209991U CN201320220999U CN203272441U CN 203272441 U CN203272441 U CN 203272441U CN 2013202209991 U CN2013202209991 U CN 2013202209991U CN 201320220999 U CN201320220999 U CN 201320220999U CN 203272441 U CN203272441 U CN 203272441U
Authority
CN
China
Prior art keywords
bearing
main shaft
engine room
connecting structure
loads
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
CN2013202209991U
Other languages
Chinese (zh)
Inventor
赵炳胜
蔡晓峰
陈虎
刘衍选
马斌
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.)
Shenyang China Creative Wind Energy Co Ltd
China Creative Wind Energy Co Ltd
Ningxia China Creative Wind Energy Co Ltd
Qingdao China Creative Wind Energy Co Ltd
Tongliao China Creative Wind Energy Co Ltd
Original Assignee
Shenyang China Creative Wind Energy Co Ltd
Ningxia China Creative Wind Energy Co Ltd
Qingdao China Creative Wind Energy Co Ltd
Tongliao China Creative Wind Energy 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 Shenyang China Creative Wind Energy Co Ltd, Ningxia China Creative Wind Energy Co Ltd, Qingdao China Creative Wind Energy Co Ltd, Tongliao China Creative Wind Energy Co Ltd filed Critical Shenyang China Creative Wind Energy Co Ltd
Priority to CN2013202209991U priority Critical patent/CN203272441U/en
Application granted granted Critical
Publication of CN203272441U publication Critical patent/CN203272441U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/042—Housings for rolling element bearings for rotary movement
    • F16C35/047—Housings for rolling element bearings for rotary movement with a base plate substantially parallel to the axis of rotation, e.g. horizontally mounted pillow blocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The utility model relates to a connecting structure of an engine room chassis and a main shaft. The connecting structure comprises the main shaft and the engine room chassis, wherein the connecting position of the engine room chassis and the main shaft is provided with coaxial first and second bearing seats; the main shaft is arranged on the engine room chassis through two bearings; the inner diameters of the two bearing seats are respectively matched with bearing outer rings which are correspondingly arranged. The connecting structure is characterized in that the structure of the main shaft is supported by adopting two main shaft bearings; the front main shaft bearing is a cylindrical roller bearing and mainly bears radial loads; the rear main shaft bearing is a biserial conical roller bearing and mainly bears radial and axial combined loads which take the radial loads as a main part. The connecting structure disclosed by the utility model can be used for bearing more radial and axial loads without oversize bearings. According to the utility model, the front bearing seat and the rear bearing seat which are positioned on the engine room chassis are integrated with an engine room base into an integer, so that the form and location tolerance, such as axiality and the like, of the front bearing seat and the rear bearing seat can be ensured, and finally the integral structure can optimize the load bearing path of a wind-driven generator to greatly relieve the loads born by a transmission chain.

Description

The linkage structure of a kind of cabin underframe and main shaft
Technical field
The invention belongs to technical field of wind power generation, particularly relate to the linkage structure of a kind of cabin underframe and main shaft.
Background technique
In the wind-driven generator of nowadays installing, what 75%～80% employing was arranged is the main shaft bearing support concept, and namely the inner ring of main bearing is arranged on the main shaft of rotation, and the outer ring is arranged in fixing bearing support.Main shaft plays support cage and blade, transmits torque to the effect of speedup box.The main bearing radial force of main shaft bearing, the quality of its performance is not only influential to transmission efficiency, and has determined the maintenance cost of main drive chain, so require to have good aligning performance, resistance to shock and smoothness of operation.Jumbo wind-driven generator is due to the wind wheel with larger diameter, so can catch more wind energy.But it is large that the load of the wind that it is suffered and the weight of self also can the phase strains.This just makes when the large capacity wind-driven generator of design, need to carry out particular design to its main shaft supporting structure.A general bearings, its poor stability of adopting between existing cabin underframe and main shaft.Especially large capacity wind-driven generator is more inapplicable.
Summary of the invention
For the technical problem of above-mentioned existence, the invention provides the linkage structure of a kind of cabin underframe and main shaft, it makes main shaft more firm with being connected of cabin underframe by changing the structure of cabin underframe.
The objective of the invention is to be achieved through the following technical solutions:
The linkage structure of a kind of cabin underframe and main shaft, comprise main shaft and cabin underframe, described cabin underframe is provided with first, second coaxial bearing support in the position that is connected with main shaft, described main shaft is installed on the underframe of cabin by two bearings, and diaxon bearing internal diameter matches with the bearing outer ring of corresponding installation respectively.
Further, in described clutch shaft bearing seat, roller bearing is set.
Further, in described the second bearing support, double-row conical bearing is set.
Beneficial effect of the present invention is:
1. the present invention adopts the structure of two main shaft bearing supports main shaft.Wherein the forward spindle bearing is roller bearing, mainly bears radial load; Rear main shaft bearing is double-row conical bearing, mainly bear take radial load as main radially with axial connected load.The structure of two main shaft bearing supports main shaft can be carried the larger thrust load that radially reaches, and do not need that bearing does too large.
2. on the underframe of cabin of the present invention, former and later two bearing supports and engine room foundation are integral types.Like this, can guarantee by follow-up machining the form and position tolerances such as coaxality of former and later two bearing supports, finally make total can optimize the load-bearing path of wind-driven generator, greatly alleviate the suffered load of Transmitted chains.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the cabin underframe in Fig. 1.
Fig. 3 is the roller bearing in Fig. 1.
Fig. 4 is the double-row conical bearing in Fig. 1.
In figure: 1. roller bearing, 11. outer rings, 12. rollers, 13. inner rings, 14. retainers, 2. double-row conical bearing, 21. outer rings, 22. retainers, 23. inner rings, 24. rollers, 25. outer ring spacer, 3. cabin underframe, 31. clutch shaft bearing seats, 32. second bearing support, 4. main shafts.
Embodiment
The invention will be further described below by embodiment and accompanying drawing.
Embodiment: referring to Fig. 1, the linkage structure of a kind of cabin underframe and main shaft, comprise main shaft 4 and cabin underframe 3, described cabin underframe 3 is provided with first, second bearing support 31,32 in the position that is connected with main shaft 4, described main shaft 4 is installed on cabin underframe 3 by two bearings, and diaxon bearing internal diameter matches with the bearing outer ring of corresponding installation respectively.
The interior roller bearing 1 that arranges of described clutch shaft bearing seat 31.Referring to Fig. 3, the kind of bearings load carrying capacity is large, mainly bears radial load.In roller bearing 1, rolling element is cylindrical roller, and roller is that line contacts or repair the contact of rolling off the production line with raceway, and radially bearing capacity is large, is applicable to bear heavy load and impact load.Bearing inner race or outer ring are separable, are convenient to installation and removal.
The interior double-row conical bearing 2 that arranges of described the second bearing support 32.Referring to Fig. 2, kind of bearings be mainly used in bearing take radial load as main radially with axial connected load, and can restrictive axes along the axial displacement of a direction.In double-row conical bearing 2, rolling element is conical roller, and inside and outside circle all has tapered raceway, and bearing load carrying capacity depends on the raceway angles of outer ring, and the larger bearing capacity of angle is larger.
Referring to Fig. 2, the cabin underframe 3 in the present invention is nodular iron casting, first, second spindle bearing holder 31,32 and cabin underframe 3 be integrally casting out.By follow-up machining, can control well the form and position tolerances such as coaxality of two bearing supports, so just can guarantee two main shaft bearings and first, second bearing support 31,32 and the assembly precision of main shaft 4, guarantee the smooth operation of complete machine.
Referring to Fig. 1-4, the present invention is when assembling, and first main shaft 4 being stood upside down is placed in the level land, then heats the inner ring 13 of roller bearing 1, is arranged on main shaft 4, then assembles roller 12, retainer 14 and outer ring 11.Then the rear spindle bearing holder position of heater bilge frame 3, rear main shaft bearing is installed in bearing support.At last, heat simultaneously the inner ring 23 of the second bearing support 32 and double-row conical bearing 2, after reaching predetermined temperature, underframe 3 integral body in cabin are sling, fall to being placed on main shaft 4, after temperature was cooling, whole assembling was completed.

Claims (3)

1. the linkage structure of a cabin underframe and main shaft, comprise main shaft and cabin underframe, it is characterized in that: described cabin underframe is provided with first, second coaxial bearing support in the position that is connected with main shaft, described main shaft is installed on the underframe of cabin by two bearings, and diaxon bearing internal diameter matches with the bearing outer ring of corresponding installation respectively.
2. the linkage structure of cabin underframe and main shaft according to claim 1, is characterized in that: in described clutch shaft bearing seat, roller bearing is set.
3. the linkage structure of cabin underframe and main shaft according to claim 1, is characterized in that: in described the second bearing support, double-row conical bearing is set.
CN2013202209991U 2013-04-27 2013-04-27 Connecting structure of engine room chassis and main shaft Expired - Fee Related CN203272441U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013202209991U CN203272441U (en) 2013-04-27 2013-04-27 Connecting structure of engine room chassis and main shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013202209991U CN203272441U (en) 2013-04-27 2013-04-27 Connecting structure of engine room chassis and main shaft

Publications (1)

Publication Number Publication Date
CN203272441U true CN203272441U (en) 2013-11-06

Family

ID=49502863

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013202209991U Expired - Fee Related CN203272441U (en) 2013-04-27 2013-04-27 Connecting structure of engine room chassis and main shaft

Country Status (1)

Country Link
CN (1) CN203272441U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105508155A (en) * 2015-12-31 2016-04-20 北京金风科创风电设备有限公司 Wind generating set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105508155A (en) * 2015-12-31 2016-04-20 北京金风科创风电设备有限公司 Wind generating set
CN105508155B (en) * 2015-12-31 2021-06-01 北京金风科创风电设备有限公司 Wind generating set

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

Granted publication date: 20131106

Termination date: 20190427

CF01 Termination of patent right due to non-payment of annual fee