CN110185783A - The low speed end structure of epicyclic gearbox - Google Patents
The low speed end structure of epicyclic gearbox Download PDFInfo
- Publication number
- CN110185783A CN110185783A CN201910558362.5A CN201910558362A CN110185783A CN 110185783 A CN110185783 A CN 110185783A CN 201910558362 A CN201910558362 A CN 201910558362A CN 110185783 A CN110185783 A CN 110185783A
- Authority
- CN
- China
- Prior art keywords
- bearing
- slow
- low speed
- epicyclic gearbox
- end structure
- 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.)
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Classifications
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0479—Gears or bearings on planet carriers
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H2057/085—Bearings for orbital gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of low speed end structures of epicyclic gearbox, comprising: shell, planet carrier, several planetary gears, ring gear, first bearing and second bearing；Several planetary gears are rotatablely connected to planet carrier；Planetary gear is engaged with ring gear；Ring gear is fixed to shell or is formed by shell；Planet carrier is equipped with or is formed with slow-speed shaft；One end of slow-speed shaft is equipped with or is formed with driving section first bearing for being inputted or being exported and second bearing is sheathed with the periphery of slow-speed shaft；First bearing and second bearing are all set between shell and slow-speed shaft；First bearing and second bearing are set to the ipsilateral of driving section；At least one in first bearing and second bearing is oscillating bearing.The invention has the beneficial effects that the low speed shaft supporting structure of the low speed end structure of epicyclic gearbox improves bearing capacity, minification, mitigates weight, reduces cost.
Description
Technical field
The present invention relates to a kind of epicyclic gearboxes, and in particular to a kind of low speed end structure of epicyclic gearbox.
Background technique
Epicyclic gearbox is widely applied due to having the characteristics that bearing capacity is high, compact-sized, transmission ratio is big, high-efficient
In numerous industrial circles such as wind-power electricity generation, engineering machinery, epicyclic gearbox can be divided into gearbox and two kinds of reduction gearbox, very big by one
Part planetary gear low speed end is equipped with slow-speed shaft, and slow-speed shaft refers to the input shaft of gearbox and the output shaft of reduction gearbox.It is existing
Although there is the slow-speed shaft revolving speed of significant portion epicyclic gearbox lower, very big load is born, both bears torque, it is also possible to bear
Moment of flexure, even additional axial force, there is also very big impacts for some operating conditions.
Overwhelming majority slow-speed shaft uses roller bearings at present, but rolling bearing size is larger, higher cost.In addition
There is a small amount of sliding bearing using form of sleeve to support, such as patent No. CN202360735U discloses one kind for wind-power electricity generation
Machine epicyclic gearbox, output gear shaft use most common flanged sliding bearing, specifically it can be seen that in embodiment
Using tubulose (Cylinder inner bore) sliding bearing.Such sliding bearing is only applicable in loaded, double-sided bearings supporting structure among axis.It is right
Structure that is loaded on the outside of axis, being supported using unilateral bearing, it is easy to sliding bearing both ends be caused very big EDGE CONTACT occur
Stress, thus premature failure.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of low speed end structures of epicyclic gearbox, to planet
The slow-speed shaft of gear-box provides a kind of new support scheme, improves bearing capacity, minification, mitigates weight, reduces cost.
In order to achieve the above objectives, the present invention uses following scheme:
A kind of low speed end structure of epicyclic gearbox, comprising: shell, planet carrier, several planetary gears, ring gear, slow-speed shaft,
One bearing and second bearing；Several planetary gears are rotatablely connected to planet carrier；Planetary gear is engaged with ring gear；Ring gear is fixed
It is formed to shell or by shell；Planet carrier is equipped with or is formed with slow-speed shaft；One end of slow-speed shaft is equipped with or is formed with progress
The driving section of input or output；First bearing and second bearing are sheathed with the periphery of slow-speed shaft；First bearing and second bearing
It is all set between shell and slow-speed shaft；First bearing and second bearing are set to the ipsilateral of driving section；First bearing and second
At least one in bearing is oscillating bearing.Further, driving section is output gear.
Further, slow-speed shaft is installed to planet carrier and planet carrier and constitutes an entirety relative to housing into rotation.
Further, one in first bearing and second bearing is oscillating bearing；In first bearing and second bearing
Another is sliding bearing.
Further, oscillating bearing is between sliding bearing and driving section.
Further, the low speed end structure of epicyclic gearbox further include: outside framework oil seal；Outside framework oil seal is sheathed with slow-speed shaft
Periphery；Outside framework oil seal is between slow-speed shaft and shell.
Further, the low speed end structure of epicyclic gearbox further include: transparent cover；Transparent cover is fixed to shell；Transparent cover is formed with
The through-hole passed through for slow-speed shaft；Transparent cover is equipped with the sealing structure that sealing is realized between the hole wall and slow-speed shaft of through-hole.
Further, the revolving speed of slow-speed shaft is less than or equal to 100r/min；The aligning angle of oscillating bearing is less than or equal to 5 degree.
A kind of low speed end structure of epicyclic gearbox, comprising: shell, first bearing, second bearing and slow-speed shaft；First axle
Hold the periphery that slow-speed shaft is sheathed with second bearing；First bearing and second bearing are all set between shell and slow-speed shaft；The
At least one in one bearing and second bearing is oscillating bearing.
Further, one in first bearing and second bearing is oscillating bearing；In first bearing and second bearing
Another is sliding bearing.
Further, first bearing and second bearing are oscillating bearing.
Further, one in first bearing and second bearing is oscillating bearing；In first bearing and second bearing
Another is rolling bearing.
The invention has the beneficial effects that improving bearing capacity, minification, mitigating weight, reduce cost.
Power (torque) density that product is improved to the support construction of slow-speed shaft, reduces cost, hence it is evident that improve product
Competitiveness.
Detailed description of the invention
Fig. 1 is the schematic diagram of the low speed end structure of epicyclic gearbox of the invention.
Planetary gear reduction box 100, shell 10, planet carrier 21, ring gear 22, slow-speed shaft 23, output gear 231, first
Bearing 24, second bearing 25, transparent cover 26, sealing structure 27, outside framework oil seal 28, retaining ring 29, washer 30.
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of low speed end structure 100 of epicyclic gearbox, comprising: shell 10, planet carrier 21, several rows
Star-wheel, ring gear 22, slow-speed shaft 23, first bearing 24 and second bearing 25.Several planetary gears are rotatablely connected to planet carrier
21.Planetary gear is engaged with ring gear 22.
As a kind of specific embodiment, ring gear 22 is fixed to shell 10.As an alternative embodiment, interior
Gear ring can also be formed with shell, i.e., as a part of shell.
The installation of slow-speed shaft 23 constitutes an entirety to planet carrier 21 and planet carrier 21 and rotates relative to shell 10.As one kind
Optional embodiment, slow-speed shaft can also be formed by planet carrier.That is a part of slow-speed shaft as planet carrier.
One end of slow-speed shaft 23 is equipped with the driving section for being exported.As a kind of specific embodiment, work as planet
When gear-box is reduction gearbox, slow-speed shaft 23 is output shaft.Driving section is output section.As an alternative embodiment, planet
When gear-box is gearbox, slow-speed shaft is input shaft.Driving section is input unit.As a kind of specific embodiment, driving section
For output gear 231.Slow-speed shaft 23 can also become low-speed gear axis, be driven by gear.As a kind of optional reality
Mode is applied, the driving section of slow-speed shaft can not be gear.The driving section of slow-speed shaft can pass through flange, flat key, spline or locking
The types of attachment such as disk are driven.Driving section can also be formed by output shaft.That is a part of driving section as output shaft.First
Bearing 24 and second bearing 25 are sheathed with the periphery of slow-speed shaft 23.First bearing 24 and second bearing 25 are all set in shell 10
Between slow-speed shaft 23.At least one in first bearing 24 and second bearing 25 is oscillating bearing.First bearing 24 and the second axis
It holds 25 and is set to the ipsilateral of driving section.First bearing 24 and second bearing 25 are set to the ipsilateral of output gear 231.First bearing
24 and second bearing 25 can use oil lubrication, grease lubrication, self-lubricating.
As a kind of specific embodiment, first bearing 24 is sliding bearing.Second bearing 25 is oscillating bearing.Joint
Bearing is between sliding bearing and output gear 231.One end using oscillating bearing to slow-speed shaft 23 far from planet carrier 21 into
Row support, helps to improve the service life.Oscillating bearing bearing capacity with higher, bearing capacity can be on an equal basis under identical size
The several times of size rolling bearing, can use oil lubrication, grease lubrication, self-lubricating, can substantially reduce the size, save material and
Space reduces the overall cost of product.
As an alternative embodiment, first bearing is oscillating bearing, second bearing is sliding bearing.As another
The optional embodiment of kind, first bearing and second bearing are for oscillating bearing.As another optional embodiment,
One in one bearing and second bearing is oscillating bearing, another in first bearing and second bearing is rolling bearing.
As a kind of specific embodiment, the low speed end structure 100 of epicyclic gearbox further include: outside framework oil seal 28.Bone
Frame oil sealing 28 is sheathed with the periphery of slow-speed shaft 23.Outside framework oil seal 28 and between slow-speed shaft 23 and shell 10.As a kind of tool
The embodiment of body, outside framework oil seal 28 and between first bearing 24 and second bearing 25.As a kind of optional embodiment party
Formula, outside framework oil seal are arranged between planet carrier and first bearing.
As a kind of specific embodiment, the low speed end structure 100 of epicyclic gearbox further include: transparent cover 26.Transparent cover 26
It is fixed to shell 10.Transparent cover 26 is formed with the through-hole passed through for slow-speed shaft 23.Transparent cover 26 is equipped with hole wall and slow-speed shaft in through-hole
The sealing structure 27 of sealing is realized between 23.Specifically, sealing structure 27 is sealing ring.
As a kind of specific embodiment, the revolving speed of slow-speed shaft 23 is less than or equal to 100r/min.The aligning of oscillating bearing
Angle is less than or equal to 5 degree.
As a kind of specific embodiment, the low speed end structure 100 of epicyclic gearbox further include: retaining ring 29 and washer
30.Retaining ring 29 and washer 30 are set on slow-speed shaft 23.Retaining ring 29 is contacted with the inner ring of oscillating bearing.Washer 30 and sliding axle
It holds and is in contact.
As a kind of specific embodiment, the low speed end structure 100 of epicyclic gearbox is the planet tooth of wind-driven generator
Take turns the low speed end structure of reduction gearbox.The low speed end structure of epicyclic gearbox also can be applied to engineering machinery such as rotary reducer
Deng.The low speed end structure of epicyclic gearbox is also applied to gearbox.For example, the low speed end structure of epicyclic gearbox can answer
Use wind power speed-increasing gearbox.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (10)
1. a kind of low speed end structure of epicyclic gearbox, comprising: shell, planet carrier, several planetary gears, ring gear, first axle
It holds and second bearing；Several described planetary gears are rotatablely connected to the planet carrier；The planetary gear is nibbled with the ring gear
It closes；The ring gear is fixed to the shell or is formed by the shell；The planet carrier is equipped with or is formed with slow-speed shaft；Institute
The one end for stating slow-speed shaft is equipped with or is formed with the driving section for being inputted or being exported；The first bearing and described second
Bearing is sheathed with the periphery of slow-speed shaft；The first bearing and the second bearing are all set in the shell and the low speed
Between axis；The first bearing and the second bearing are set to the ipsilateral of the driving section；The first bearing and described
At least one in two bearings is oscillating bearing.
2. the low speed end structure of epicyclic gearbox according to claim 1, which is characterized in that
One in the first bearing and the second bearing is oscillating bearing；In the first bearing and the second bearing
Another be sliding bearing.
3. the low speed end structure of epicyclic gearbox according to claim 2, which is characterized in that
The oscillating bearing is between the sliding bearing and the driving section.
4. the low speed end structure of epicyclic gearbox according to claim 1, which is characterized in that
The low speed end structure of the epicyclic gearbox further include: the skeleton oil being set between the slow-speed shaft and the shell
Envelope；The outside framework oil seal is sheathed with the periphery of the slow-speed shaft.
5. the low speed end structure of epicyclic gearbox according to claim 4, which is characterized in that
The low speed end structure of the epicyclic gearbox further include: transparent cover；The transparent cover is fixed to the shell；The transparent cover is formed
There is the through-hole passed through for the slow-speed shaft；The transparent cover, which is equipped between the hole wall and the slow-speed shaft of the through-hole, realizes sealing
Sealing structure.
6. the low speed end structure of epicyclic gearbox according to claim 1, which is characterized in that
The revolving speed of the slow-speed shaft is less than or equal to 100r/min；The aligning angle of the oscillating bearing is less than or equal to 5 degree.
7. a kind of low speed end structure of epicyclic gearbox characterized by comprising shell, first bearing, second bearing and low speed
Axis；The first bearing and the second bearing are sheathed with the periphery of the slow-speed shaft；The first bearing and second axis
It holds and is all set between the shell and the slow-speed shaft；At least one in the first bearing and the second bearing is joint
Bearing.
8. the low speed end structure of epicyclic gearbox according to claim 7, which is characterized in that
One in the first bearing and the second bearing is oscillating bearing；In the first bearing and the second bearing
Another be sliding bearing.
9. the low speed end structure of epicyclic gearbox according to claim 7, which is characterized in that
The first bearing and the second bearing are oscillating bearing.
10. the low speed end structure of epicyclic gearbox according to claim 7, which is characterized in that
One in the first bearing and the second bearing is oscillating bearing；In the first bearing and the second bearing
Another be rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558362.5A CN110185783A (en) | 2019-06-26 | 2019-06-26 | The low speed end structure of epicyclic gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910558362.5A CN110185783A (en) | 2019-06-26 | 2019-06-26 | The low speed end structure of epicyclic gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110185783A true CN110185783A (en) | 2019-08-30 |
Family
ID=67723407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910558362.5A Pending CN110185783A (en) | 2019-06-26 | 2019-06-26 | The low speed end structure of epicyclic gearbox |
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| Country | Link |
|---|---|
| CN (1) | CN110185783A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200957789Y (en) * | 2006-07-07 | 2007-10-10 | 重庆江陵仪器厂 | Agitation-drum driver of concrete agitation transporting lorry |
| CN201090683Y (en) * | 2007-10-26 | 2008-07-23 | 重庆齿轮箱有限责任公司 | Wind power generation variable oar reduction gear box |
| CN202545696U (en) * | 2012-03-30 | 2012-11-21 | 杭州前进齿轮箱集团股份有限公司 | High-power two-stage speed-increasing planet gearbox |
| DE102012104083A1 (en) * | 2012-05-09 | 2013-11-14 | Wittenstein Ag | Gear box has drive element that is provided for driving teeth in radial direction and rotated around rotational axis, such that cam contour of drive element is provided with projections in radial direction |
| CN203807024U (en) * | 2014-04-17 | 2014-09-03 | 洛阳汉鼎起重机械有限公司 | Connecting structure of coiling block and speed reducer |
| CN210397672U (en) * | 2019-06-26 | 2020-04-24 | 南京高速齿轮制造有限公司 | Low-speed end structure of planetary gear box |
-
2019
- 2019-06-26 CN CN201910558362.5A patent/CN110185783A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200957789Y (en) * | 2006-07-07 | 2007-10-10 | 重庆江陵仪器厂 | Agitation-drum driver of concrete agitation transporting lorry |
| CN201090683Y (en) * | 2007-10-26 | 2008-07-23 | 重庆齿轮箱有限责任公司 | Wind power generation variable oar reduction gear box |
| CN202545696U (en) * | 2012-03-30 | 2012-11-21 | 杭州前进齿轮箱集团股份有限公司 | High-power two-stage speed-increasing planet gearbox |
| DE102012104083A1 (en) * | 2012-05-09 | 2013-11-14 | Wittenstein Ag | Gear box has drive element that is provided for driving teeth in radial direction and rotated around rotational axis, such that cam contour of drive element is provided with projections in radial direction |
| CN203807024U (en) * | 2014-04-17 | 2014-09-03 | 洛阳汉鼎起重机械有限公司 | Connecting structure of coiling block and speed reducer |
| CN210397672U (en) * | 2019-06-26 | 2020-04-24 | 南京高速齿轮制造有限公司 | Low-speed end structure of planetary gear box |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190925 Address after: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road. Applicant after: Nanjing High Speed Gear Manufacturing Co., Ltd. Applicant after: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. Address before: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road. Applicant before: Nanjing High Speed Gear Manufacturing Co., Ltd. |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200511 Address after: 211103 No.30, Houjiao Road, gaoxinyuan, Jiangning District, Nanjing City, Jiangsu Province Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road. Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. |
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| TA01 | Transfer of patent application right |