CN110469657A - A kind of planet pin shaft and retarder - Google Patents
A kind of planet pin shaft and retarder Download PDFInfo
- Publication number
- CN110469657A CN110469657A CN201910881127.1A CN201910881127A CN110469657A CN 110469657 A CN110469657 A CN 110469657A CN 201910881127 A CN201910881127 A CN 201910881127A CN 110469657 A CN110469657 A CN 110469657A
- Authority
- CN
- China
- Prior art keywords
- hollow structure
- shaft body
- planet pin
- pin shaft
- blocking
- 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.)
- Pending
Links
- 230000000903 blocking effect Effects 0.000 claims abstract description 38
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 38
- 238000010586 diagram Methods 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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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
- F16H57/042—Guidance of lubricant
- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of planet pin shaft and retarders, belong to transmission technical field, and planet pin shaft includes shaft body and blocking, and at least one end of the shaft body is hollow structure, and the blocking is in interference fit in the hollow structure.By the way that hollow structure is arranged in shaft body, mitigate weight；Blocking is interference fitted with hollow structure, guarantees the cavity for forming sealing, in order to be lubricated using lubricating oil, and the setting blocked, it is able to bear radial force suffered by shaft body, the part for preventing shaft body and planet carrier to be interference fitted can become taper；Hollow structure is opened on the end face of shaft body, production easy to process, conducive to the installation and removal of blocking.Retarder uses above-mentioned planet pin shaft, by reducing the weight of planet pin shaft, improves the torque density of retarder, is blocked by setting, while guaranteeing the reliability and lubricity of planet pin shaft and planet carrier interference fit.
Description
Technical field
The present invention relates to transmission technical field more particularly to a kind of planet pin shafts and retarder.
Background technique
In gear drive field, Planetary Gear Transmission has the characteristics that compact-sized, bearing capacity is strong, sends out in wind-force
The fields such as electricity, engineering machinery, universal machine are used widely, and especially wind-powered electricity generation power field, mainstay are all made of planet
Gear drive.With the rapid development of wind generating technology, the main-gear box of wind-powered electricity generation generating equipment needs higher torque density,
Under i.e. same torque, gear-box needs smaller weight.
The main-gear box (>=2.5MW) of conventional wind generating equipment mostly uses two-stage planet to add level-one parallel construction at present,
In entire gear-box weight, low speed planet grade accounting highest, and the specific gravity that planet pin shaft accounts for entire slow speed turbine stage weight is left up to 15%
The right side, and the trend development with low speed planet grade towards low speed than, multirow star-wheel, planet pin shaft weight accounting can be mentioned further
Height, therefore the weight for reducing planet pin shaft has significant impact to entire gear-box weight is reduced.
The generally solid axis of the structure of planet pin shaft at present, and process and forced feed lubrication, heavier-weight are carried out with oilhole.If adopting
It with hollow shaft structure, then can not seal to form chamber, and then planetary bearing lubrication can not be carried out by planet pin shaft.In addition, empty
The part of planet pin shaft and the planet carrier interference fit of the heart can become taper, influence planetary bearing cooperation and planet pin shaft is brought to beat
Sliding risk.
Summary of the invention
The purpose of the present invention is to provide a kind of planet pin shaft and retarders, to solve planet pin existing in the prior art
The big technical problem of axis weight.
As above design, the technical scheme adopted by the invention is that:
A kind of planet pin shaft, including shaft body, at least one end of the shaft body are hollow structure, further include blocking, institute
Blocking is stated in interference fit in the hollow structure.
Wherein, one end of the shaft body is hollow structure, other end closing.
Wherein, the both ends of the shaft body are hollow structure, and two hollow structures are connected to form cavity.
Wherein, one end in the shaft body far from the hollow structure offers the first oil duct, first oil duct with
The hollow structure connection.
Wherein, the second oil duct is offered in the blocking, second oil duct is connected to the hollow structure.
Wherein, axisymmetrical of first oil duct relative to the shaft body.
Wherein, oilhole is radially offered in the shaft body, the oilhole is connected to the hollow structure.
Wherein, limited step, one end of the blocking and the limited step are provided on the inner wall of the hollow structure
It abuts.
Wherein, the blocking cooperates with the hollow structure under elastic deformation.
A kind of retarder, including planet pin shaft as described above.
Beneficial effects of the present invention:
Planet pin shaft proposed by the present invention mitigates weight by the way that hollow structure is arranged in shaft body；Blocking and hollow knot
Structure interference fit guarantees the cavity for forming sealing, in order to be lubricated using lubricating oil, and the setting blocked, it is able to bear
Radial force suffered by shaft body, the part for preventing shaft body and planet carrier to be interference fitted can become taper；Hollow structure opens up
In on the end face of shaft body, production easy to process, conducive to the installation and removal of blocking.
Retarder proposed by the present invention improves retarder by reducing the weight of planet pin shaft using above-mentioned planet pin shaft
Torque density, by setting block, while guarantee planet pin shaft and planet carrier interference fit reliability and lubricity.
Detailed description of the invention
Fig. 1 is the schematic diagram for the planet pin shaft that the embodiment of the present invention one provides；
Fig. 2 is the schematic diagram for the retarder that the embodiment of the present invention one provides；
Fig. 3 is the schematic diagram of planet pin shaft provided by Embodiment 2 of the present invention；
Fig. 4 is the schematic diagram of retarder provided by Embodiment 2 of the present invention；
Fig. 5 is the schematic diagram for the planet pin shaft that the embodiment of the present invention three provides；
Fig. 6 is the schematic diagram for the retarder that the embodiment of the present invention three provides.
In figure:
10, planetary bearing；20, planetary gear；30, planet carrier；40, snap ring；
1, shaft body；11, hollow structure；12, the first oil duct；13, oilhole；
2, it blocks；21, the second oil duct.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of embodiment is shown in the accompanying drawings, wherein identical from beginning to end
Or similar label indicates same or similar element or element with the same or similar functions.It is retouched below with reference to attached drawing
The embodiment stated is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment one
Referring to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of planet pin shaft, for being assembled to the inner hole of planetary bearing 10,
And it is connect with planet carrier 30.Planet pin shaft includes shaft body 1 and blocking 2, and at least one end of shaft body 1 is hollow structure 11, is blocked up
Plug 2 is in interference fit in hollow structure 11.
By the way that hollow structure 11 is arranged in shaft body 1, mitigate weight；Blocking 2 is interference fitted with hollow structure 11, is guaranteed
The cavity of sealing is formed, in order to be lubricated, and the setting of blocking 2, it is able to bear radial force suffered by shaft body 1, is prevented
The part that only shaft body 1 and planet carrier 30 are interference fitted can become taper；Hollow structure 11 is opened on the end face of shaft body 1,
Production easy to process, conducive to the installation and removal of blocking 2.
In the present embodiment, one end of shaft body 1 is hollow structure 11, and the other end of shaft body 1 is closed.2 assembly of blocking
In the opening of hollow structure 11, the setting of hollow structure 11 mitigates the weight of shaft body 1, and convenient for being realized using lubricating oil
Lubrication.Blocking 2 is solid construction, when shaft body 1 is by radial force, due to the supporting role of blocking 2, reduces shaft body 1
Deformation so that the outer surface of shaft body 1 is cylinder, and then ensure that the service life with the planetary bearing 10 of planet pin shaft cooperation.
Blocking 2 with hollow structure 11 be interference fitted, to guarantee the leakproofness of hollow structure 11, be conducive to planetary bearing 10 into
Row lubrication.Specifically, blocking 2 can be made of colloidal materials, to realize sealing in the case of an elastic deformation；It is also possible to steel
Material reaches sealing effect, this is not restricted to realize interference fit under the mating reaction of tolerance.
It is provided with limited step on the inner wall of hollow structure 11,2 one end is blocked and is abutted with limited step, to blocking 2
It is limited, prevents blocking 2 from sliding into the inside of hollow structure 11.Specifically, the opening of hollow structure 11 is arranged in limited step
Near, so that blocking 2, which just enters hollow structure 11, to be advisable.
One end of the closed end of shaft body 1, i.e., the opening in shaft body 1 far from hollow structure 11 offers the first oil duct
12, the first oil duct 12 is connected to hollow structure 11.Lubricating oil can flow into hollow structure 11 along the first oil duct 12, convenient for row
Star bearing 10 is lubricated.In the present embodiment, when planet pin shaft and planet carrier 30 cooperate, the oil duct on planet carrier 30 is provided with
The closed end of shaft body 1, here, the first oil duct 12 opens up, so that the structure of shaft body 1 is fully used.
Axisymmetrical of first oil duct 12 relative to shaft body 1 can be achieved oil inlet in the two sides of shaft body 1, improve
Lubricating efficiency, and make 1 symmetrical configuration of shaft body, stress equalization guarantees the stationarity of movement.In the present embodiment, the first oil
Road 12 is in cross.
Oilhole 13 is radially offered in shaft body 1, oilhole 13 is connected to hollow structure 11.Into in hollow structure 11
Lubricating oil is flowed out through oil-through hole 13, the position where planetary bearing 10 is reached, convenient for being lubricated to planetary bearing 10.Oilhole 13
Open up position so that planet pin shaft with planetary bearing 10 assemble when, oilhole 13 be located just at and same planetary gear 20 cooperate
A pair of bearings between.
The embodiment of the present invention also provides a kind of retarder, including above-mentioned planet pin shaft.By being set in one end of shaft body 1
Hollow structure 11 is set, the weight of planet pin shaft is reduced, improves the torque density of retarder, it is stifled by being arranged in hollow structure 11
Plug 2, and block 2 and be interference fitted with hollow structure 11, guarantee the reliability and lubrication that planet pin shaft and planet carrier 30 are interference fitted
Property.
Retarder further includes planetary bearing 10, planetary gear 20 and planet carrier 30, when assembly, planetary bearing 10 and planetary gear 20
It is put into the front and back web of planet carrier 30, by the assembly of blocking 2 in shaft body 1.Planet pin shaft (wind-driven generator on the right side of the pivoted frame
Motor side) it is packed into, until planet pin shaft is assemblied in the inner hole of planetary bearing 10 and the left web of planet carrier 30.
Planet pin shaft is positioned in motor side using snap ring 40, prevents planet pin shaft from deviating from.Snap ring 40 is connect with planet carrier 30
And it is abutted with shaft body 1.
Embodiment two
Fig. 3 and Fig. 4 shows embodiment two, wherein being the same as example 1 or corresponding components use and embodiment one
Corresponding appended drawing reference.For simplicity, the distinctive points of embodiment two Yu embodiment one are only described.Difference place is, blocks 2
On offer the second oil duct 21, the second oil duct 21 is connected to hollow structure 11.In the present embodiment, planet pin shaft and planet carrier 30
When cooperation, the oil duct on planet carrier 30 is provided with one end of the opening close to hollow structure 11, here, opening up the by blocking 2
Two oil ducts 21, will not influence the structural strength of shaft body 1, and space is fully used.
At this point, the first oil duct 12 can also be opened up in shaft body 1, the first oil duct 12 is connected to the second oil duct 21, second
Oil duct 21 is connected to hollow structure 11.Lubricating oil can flow into the second oil duct 21 along the first oil duct 12, then flow into hollow structure 11
It is interior.The setting of first oil duct 12, convenient for cooperating with the oil duct on planet carrier 30.
Axisymmetrical of first oil duct 12 relative to shaft body 1, axis pair of second oil duct 21 also relative to shaft body 1
Claim, i.e., oil inlet can be achieved in the two sides of shaft body 1, improve lubricating efficiency, and makes 2 equal symmetrical configurations of shaft body 1 and blocking,
Stress equalization guarantees the stationarity of movement.In the present embodiment, the first oil duct 12 and the combination of the second oil duct 21 are in cross.
Oilhole 13 is radially offered in shaft body 1, oilhole 13 is connected to hollow structure 11.Into in hollow structure 11
Lubricating oil is flowed out through oil-through hole 13, the position where planetary bearing 10 is reached, convenient for being lubricated to planetary bearing 10.Herein not
It repeats again.
Retarder provided in an embodiment of the present invention, snap ring 40 connect with planet carrier 30 and abuts with shaft body 1, while snap ring
40 abut with blocking 2, can limit to blocking 2.
Embodiment three
Fig. 5 and Fig. 6 shows embodiment three, wherein components identical or corresponding with embodiment two use and embodiment two
Corresponding appended drawing reference.For simplicity, the distinctive points of embodiment three Yu embodiment two are only described.It is in place of difference, axis sheet
The both ends of body 1 are hollow structure 11, and two connections of hollow structure 11 form cavity.Further mitigate the weight of shaft body 1, and
Production easy to process.Certainly, setting blocking 2 is both needed in two hollow structures 11, so that cavity forms seal chamber.
Each blocking 2 is corresponded on the inner wall of each hollow structure 11 and is provided with limited step, blocks 2 one end and limit
Step abuts.
In the present embodiment, the first oil duct 12 is provided in shaft body 1, is offered in one of blocking 2 and the first oil
The second oil duct 21 that road 12 is connected to, the second oil duct 21 are connected to hollow structure 11, and details are not described herein.
Retarder provided in an embodiment of the present invention is needed to assemble the blocking 2 at both ends, be opened before assembling planet pin shaft
Blocking 2 equipped with the second oil duct 21 connection corresponding with the first oil duct 12 in shaft body 1.
Embodiment of above only elaborates that the basic principles and features of the invention, the present invention are not limited by above embodiment
System, without departing from the spirit and scope of the present invention, the invention also has various changes and changes, and these changes and changes are all
It falls into scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (10)
1. a kind of planet pin shaft, including shaft body (1), which is characterized in that at least one end of the shaft body (1) is hollow structure
It (11), further include blocking (2), the blocking (2) is in interference fit in the hollow structure (11).
2. planet pin shaft according to claim 1, which is characterized in that one end of the shaft body (1) is hollow structure
(11), the other end is closed.
3. planet pin shaft according to claim 1, which is characterized in that the both ends of the shaft body (1) are hollow structure
(11), two hollow structure (11) connections form cavity.
4. planet pin shaft according to claim 2, which is characterized in that the closed end of the shaft body (1) offers first
Oil duct (12), first oil duct (12) are connected to the hollow structure (11).
5. planet pin shaft according to claim 2 or 3, which is characterized in that offer the second oil duct on the blocking (2)
(21), second oil duct (21) is connected to the hollow structure (11).
6. planet pin shaft according to claim 4, which is characterized in that first oil duct (12) is relative to the shaft body
(1) axisymmetrical.
7. planet pin shaft according to claim 1-3, which is characterized in that radially opened on the shaft body (1)
Equipped with oilhole (13), the oilhole (13) is connected to the hollow structure (11).
8. planet pin shaft according to claim 1-3, which is characterized in that on the inner wall of the hollow structure (11)
It is provided with limited step, one end of the blocking (2) is abutted with the limited step.
9. planet pin shaft according to claim 1-3, which is characterized in that the blocking (2) is under elastic deformation
Cooperate with the hollow structure (11).
10. a kind of retarder, which is characterized in that including according to claim 1-9 described in any item planet pin shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910881127.1A CN110469657A (en) | 2019-09-18 | 2019-09-18 | A kind of planet pin shaft and retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910881127.1A CN110469657A (en) | 2019-09-18 | 2019-09-18 | A kind of planet pin shaft and retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110469657A true CN110469657A (en) | 2019-11-19 |
Family
ID=68516102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910881127.1A Pending CN110469657A (en) | 2019-09-18 | 2019-09-18 | A kind of planet pin shaft and retarder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110469657A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201747802U (en) * | 2010-08-12 | 2011-02-16 | 重庆齿轮箱有限责任公司 | Planetary gear bearing positioning structure of wind power gear box |
| CN103307258A (en) * | 2012-03-10 | 2013-09-18 | 诺迈士科技有限公司 | Pin retainer |
| CN204153120U (en) * | 2014-09-16 | 2015-02-11 | 内蒙古第一机械集团有限公司 | For the tooth cover arrestment mechanism of Gear Planet Transmission actuating element |
| CN104718400A (en) * | 2012-07-19 | 2015-06-17 | 光洋轴承北美有限责任公司 | Plug for a planetary pin assembly |
| CN105422745A (en) * | 2015-12-28 | 2016-03-23 | 南京高速齿轮制造有限公司 | Planet wheel retarding stage in wind driven generator gearbox |
| CN108700184A (en) * | 2016-01-06 | 2018-10-23 | 光洋轴承北美有限责任公司 | Draw planet pin assemblies |
| CN109630657A (en) * | 2019-01-24 | 2019-04-16 | 中国船舶重工集团公司第七0三研究所 | A kind of non-equal spreader groove heavy duty planet wheel spindle bearing structure |
| CN211175311U (en) * | 2019-09-18 | 2020-08-04 | 南京高速齿轮制造有限公司 | Planet pin shaft and speed reducer |
-
2019
- 2019-09-18 CN CN201910881127.1A patent/CN110469657A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201747802U (en) * | 2010-08-12 | 2011-02-16 | 重庆齿轮箱有限责任公司 | Planetary gear bearing positioning structure of wind power gear box |
| CN103307258A (en) * | 2012-03-10 | 2013-09-18 | 诺迈士科技有限公司 | Pin retainer |
| CN104718400A (en) * | 2012-07-19 | 2015-06-17 | 光洋轴承北美有限责任公司 | Plug for a planetary pin assembly |
| CN204153120U (en) * | 2014-09-16 | 2015-02-11 | 内蒙古第一机械集团有限公司 | For the tooth cover arrestment mechanism of Gear Planet Transmission actuating element |
| CN105422745A (en) * | 2015-12-28 | 2016-03-23 | 南京高速齿轮制造有限公司 | Planet wheel retarding stage in wind driven generator gearbox |
| CN108700184A (en) * | 2016-01-06 | 2018-10-23 | 光洋轴承北美有限责任公司 | Draw planet pin assemblies |
| CN109630657A (en) * | 2019-01-24 | 2019-04-16 | 中国船舶重工集团公司第七0三研究所 | A kind of non-equal spreader groove heavy duty planet wheel spindle bearing structure |
| CN211175311U (en) * | 2019-09-18 | 2020-08-04 | 南京高速齿轮制造有限公司 | Planet pin shaft and speed reducer |
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Effective date of registration: 20200508 Address after: 211100 No. 30 Houjiao Road, High-tech Park, Jiangning District, Nanjing City, Jiangsu Province Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211100 No. 30 Houjiao Road, High-tech Park, Jiangning District, Nanjing City, Jiangsu Province Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. |