CN107869567A - A kind of planetary gear and its design method provided with the micro- cone cylinder endoporus of multistage - Google Patents
A kind of planetary gear and its design method provided with the micro- cone cylinder endoporus of multistage Download PDFInfo
- Publication number
- CN107869567A CN107869567A CN201711173173.3A CN201711173173A CN107869567A CN 107869567 A CN107869567 A CN 107869567A CN 201711173173 A CN201711173173 A CN 201711173173A CN 107869567 A CN107869567 A CN 107869567A
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- micro
- cone cylinder
- endoporus
- cylinder endoporus
- internal diameter
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 208000004141 microcephaly Diseases 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 3
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 238000006748 scratching Methods 0.000 claims 1
- 230000002393 scratching effect Effects 0.000 claims 1
- 206010037660 Pyrexia Diseases 0.000 abstract description 4
- 230000027950 fever generation Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
- F16H55/0873—Profiling for improving axial engagement, e.g. a chamfer at the end of the tooth flank
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a kind of planetary gear provided with the micro- cone cylinder endoporus of multistage, its bore is to have the micro- cone cylinder endoporus of multistage, the internal diameter of the other end of the bore from close to one end of planet carrier to away from planet carrier gradually increases, the major part of the last period micro- cone cylinder endoporus is connected with the microcephaly of latter section of micro- cone cylinder endoporus, and internal diameter is consistent；Present invention additionally comprises its design method.Contact area is uniform between its bore area and multiple rows of needle roller, pressure distribution is uniform after gear stand under load, the deformation of the cantilever planet wheel spindle elasticity of flexure by the present invention, so as to avoid the influence of pressure unbalance loading between bore area and needle roller, planetary smooth running can be kept, the bad friction in rotation process between bore and needle roller can be reduced, reduce local pyrexia drawback, increase the surface contact fatigue life of needle roller and bore area.
Description
Technical field
The present invention relates to gear transmission technology field, and in particular to a kind of planetary gear provided with the micro- cone cylinder endoporus of multistage
And its design method.
Background technology
Planetary Gear Transmission has very extensive application in various machineries, plays increasing effect.With phase
To in light weight, small volume, gear range is big, output torque is big, the accuracy of manufacture is high, bearing capacity is high, efficiency high, operating are flat
Surely, the features such as noise is low, performance safety, strong adaptability, has the private characteristic of power dividing, multiple tooth engagement concurrently, be widely used in
Metallurgy, mine, lifting, engineering machinery, electric power, the energy, petrochemical industry, building machinery, light industry, communications and transportation, weapons and aviation
Space flight etc. industrial department.Wherein planetary reducer is with its small volume, and transmission efficiency, reduction range is wide, and precision height etc. is many
Advantage, and be widely used in the transmission systems such as servo, stepping, direct current, and be largely used for changing or replacing old-fashioned cylinder
Gear reduction unit product；Planetary transmission is used widely in land with the transport facilitys such as, navigation, aviation.
Planetary Gear Transmission generally includes planetary gear, planet carrier, planet wheel spindle, central gear and gear ring etc., to finish
Structure is compact, reduce parts and mitigates weight to reduce cost, and planet carrier is commonly designed with planet wheel spindle and is fabricated to cantilevered, OK
It is needle bearing between spider gear shaft and inner hole of planetary gear.But the planetary gear on cantilever planet wheel spindle is in actual motion
In bear heavier load, cantilever planet wheel spindle can produce certain elasticity of flexure deformation, inner hole of planetary gear surface and multiple rows of rolling
Contact area can reduce and cause contact to be distributed unbalance loading between pin, influence planetary smoothness of operation, make planet tooth
Bad friction is produced in rotation process between wheel endoporus and needle roller, and causes local pyrexia, and the lubrication of needle bearing and cold
But condition is limited because space limits in itself, so as to necessarily reduce the surface contact fatigue life of needle roller and bore area.Together
When cantilever planet wheel spindle produce elasticity of flexure deformation, limit the length of planet wheel spindle and cause planetary gear transverse tooth thickness narrower, drop
Low planetary gear bearing capacity.As can be seen here, existing cantilevered planetary design need to be improved further.
The content of the invention
It is an object of the invention to provide a kind of planetary gear and its design method provided with the micro- cone cylinder endoporus of multistage, with solution
Certainly between bore area and needle roller the problem of pressure unbalance loading, planetary smooth running can be kept, can reduce bore and
Bad friction between needle roller in rotation process, reduces local pyrexia drawback, increases the surface of needle roller and bore area
Contact fatigue life.
The present invention is achieved in that a kind of its planetary gear provided with the planetary gear of the micro- cone cylinder endoporus of multistage is arranged on
On planet carrier, wherein being run through by needle roller has planet wheel spindle；The planetary gear is provided with bore, and the bore is
There is the micro- cone cylinder endoporus of multistage.
Further, the internal diameter of the other end of the bore from close to one end of planet carrier to away from planet carrier is gradual
Increase, the major part of the last period micro- cone cylinder endoporus is connected with the microcephaly of latter section of micro- cone cylinder endoporus, and internal diameter is consistent.
A kind of planetary design method provided with the micro- cone cylinder endoporus of multistage, including：
1), the micro- cone cylinder endoporus microcephaly's internal diameter of first paragraph is designed as planet wheel spindle diameter plus twice of needle roller diameter plus rolling
Clearance value between pin and planetary bearing；
2), the micro- cone cylinder endoporus major part internal diameter of first paragraph is designed as the deflection value that endoporus microcephaly internal diameter adds stub end, scratches
Angle value presses deflection equation V=-qx2/24EI*(x2-4Lx+6L2) be calculated；Wherein V is the deflection value of stub end, and q is uniform
Line load standard value (k N/m), x be stub end arrive planetary gear left side distance, E be steel modulus of elasticity, E=
2100000N/mm2, I is the section moments of inertia of steel, can check in (mm in shaped steel table4), L is the width of planetary gear；
3), the micro- cone cylinder endoporus microcephaly of second segment is exactly the micro- cone cylinder endoporus major part of first paragraph, and internal diameter is consistent；
4), the micro- cone cylinder endoporus major part internal diameter of second segment is designed as this section of endoporus microcephaly internal diameter and adds this section of endoporus stub end
Deflection value, deflection value is by the deflection equation V=-qx in 2)2/24EI*(x2-4Lx+6L2) be calculated；
5), n-th section of micro- cone cylinder endoporus microcephaly is exactly the micro- cone cylinder endoporus major part of the last period, internal diameter one
Causing, n-th section of micro- cone cylinder endoporus major part is designed and sized to deflection value of the small area of bed of this section of endoporus plus this section of endoporus stub end,
Deflection value is by the deflection equation V=-qx in 2)2/24EI*(x2-4Lx+6L2) be calculated.
The beneficial effect of invention：
1. the present invention can meet the heavily loaded needs under the planetary gear actual operating mode on cantilever planet wheel spindle；
2. the contact surface between its bore area and multiple rows of needle roller after gear stand under load, the deformation of the cantilever planet wheel spindle elasticity of flexure
Product is uniform, pressure distribution is uniform, so as to avoid the influence of pressure unbalance loading between bore area and needle roller, can keep planetary gear
Smooth running, the bad friction in rotation process between bore and needle roller can be reduced, reduce local pyrexia drawback,
Increase the surface contact fatigue life of needle roller and bore area；
3. longer planet wheel spindle can be designed in full size, widen planetary gear transverse tooth thickness, planetary gear can be substantially improved
Bearing capacity；Have a good application prospect.
Brief description of the drawings
Fig. 1 is the schematic diagram of the micro- cone cylinder endoporus of two sections of the present invention；
Fig. 2 is the schematic diagram that the present invention is arranged on cantilever planet wheel spindle.
In accompanying drawing：11st, planet carrier, 12, planet wheel spindle, 13, needle roller, 2, planetary gear, 20, bore, 21, micro- cone post
Face first paragraph, 211, first paragraph microcephaly, 212, first paragraph major part, 22, micro- cone cylinder hole second segment, 221, second segment microcephaly,
222nd, second segment major part.
Embodiment
The embodiment of the present invention is described in further detail with reference to embodiment：
Embodiment 1：As depicted in figs. 1 and 2, a kind of planetary gear for being provided with two sections of micro- cone cylinder endoporus, its planetary gear 2
Set in planet carrier 11, wherein being run through by needle roller 13 has planet wheel spindle 12；The planetary gear 2 is provided with bore
20, the bore 20 includes micro- cone cylinder hole first paragraph 21 and micro- cone cylinder hole second segment 22, micro- cone cylinder hole first
Section 21 is close to one end of planet carrier 11, the other end of the micro- cone cylinder hole second segment 22 away from planet carrier, micro- cone cylinder hole first paragraph
21 internal diameter is less than micro- cone cylinder hole second segment 22, the microcephaly of the major part and micro- cone cylinder hole second segment of micro- cone cylinder hole first paragraph
It is connected, and internal diameter is consistent.
A kind of planetary design method provided with the micro- cone cylinder endoporus of multistage, including：
1), micro- cone cylinder hole first paragraph endoporus microcephaly's internal diameter is designed as the diameter of planet wheel spindle 12 and adds twice of diameter of needle roller 13
Plus the clearance value between needle roller 13 and planetary bearing 12；
2), the micro- cone cylinder endoporus major part internal diameter of first paragraph is designed as the deflection value that endoporus microcephaly internal diameter adds stub end, scratches
Angle value presses deflection equation V=-qx2/24EI*(x2-4Lx+6L2) be calculated；Wherein V is the deflection value of stub end, and q is uniform
Line load standard value (k N/m), x be stub end arrive planetary gear left side distance, E be steel modulus of elasticity, E=
2100000N/mm2, I is the section moments of inertia of steel, can check in (mm in shaped steel table4), L is the width of planetary gear；
3), the micro- cone cylinder endoporus microcephaly of second segment is exactly the micro- cone cylinder endoporus major part of first paragraph, and internal diameter is consistent；
4), the micro- cone cylinder endoporus major part internal diameter of second segment is designed as this section of endoporus microcephaly internal diameter and adds this section of endoporus stub end
Deflection value, deflection value is by the deflection equation V=-qx in 2)2/24EI*(x2-4Lx+6L2) be calculated；
5), n-th section of micro- cone cylinder endoporus microcephaly is exactly the micro- cone cylinder endoporus major part of the last period, internal diameter one
Causing, n-th section of micro- cone cylinder endoporus major part is designed and sized to deflection value of the small area of bed of this section of endoporus plus this section of endoporus stub end,
Deflection value is by the deflection equation V=-qx in 2)2/24EI*(x2-4Lx+6L2) be calculated.Described is only the preferred reality of the present invention
Apply mode, it is noted that for the person of ordinary skill of the art, without departing from the technical principles of the invention,
Some improvements and modifications can also be made, these improvements and modifications should also be as being considered as within protection scope of the present invention.
Claims (3)
1. a kind of planetary gear provided with the micro- cone cylinder endoporus of multistage, its planetary gear is set in planet carrier, wherein passing through rolling
Pin, which runs through, planet wheel spindle；The planetary gear is provided with bore, it is characterised in that the bore is to have multistage micro-
Bore cylinder endoporus.
A kind of 2. planetary gear provided with the micro- cone cylinder endoporus of multistage according to claim 1, it is characterised in that the tooth
The internal diameter of the other end of the wheel endoporus from close to one end of planet carrier to away from planet carrier gradually increases, the last period micro- cone cylinder endoporus
Major part be connected with the microcephaly of latter section of micro- cone cylinder endoporus, and internal diameter is consistent.
3. a kind of a kind of planetary design method provided with the micro- cone cylinder endoporus of multistage as claimed in claim 1, it is special
Sign is, including：
1), the micro- cone cylinder endoporus microcephaly's internal diameter of first paragraph be designed as planet wheel spindle diameter plus twice needle roller diameter plus needle roller with
Clearance value between planetary bearing；
2), the micro- cone cylinder endoporus major part internal diameter of first paragraph is designed as the deflection value that endoporus microcephaly internal diameter adds stub end, deflection value
By deflection equation V=-qx2/24EI*(x2-4Lx+6L2) be calculated；Wherein V is the deflection value of stub end, and q is to connect up lotus
Carry standard value (k N/m), x be stub end arrive planetary gear left side distance, E be steel modulus of elasticity, E=2100000N/
mm2, I is the section moments of inertia of steel, and (mm is checked in shaped steel table4), L is the width of planetary gear；
3), the micro- cone cylinder endoporus microcephaly of second segment is exactly the micro- cone cylinder endoporus major part of first paragraph, and internal diameter is consistent；
4), the micro- cone cylinder endoporus major part internal diameter of second segment is designed as this section of endoporus microcephaly internal diameter scratching plus this section of endoporus stub end
Angle value, deflection value is by the deflection equation V=-qx in 2)2/24EI*(x2-4Lx+6L2) be calculated；
5), the like, n-th section of micro- cone cylinder endoporus microcephaly is exactly micro- cone cylinder endoporus major part of the last period, and internal diameter is consistent, the
The micro- cone cylinder endoporus major part of n sections is designed and sized to deflection value of the small area of bed of this section of endoporus plus this section of endoporus stub end, amount of deflection
The deflection equation V=-qx being worth in pressing 2)2/24EI*(x2-4Lx+6L2) be calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173173.3A CN107869567A (en) | 2017-11-22 | 2017-11-22 | A kind of planetary gear and its design method provided with the micro- cone cylinder endoporus of multistage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173173.3A CN107869567A (en) | 2017-11-22 | 2017-11-22 | A kind of planetary gear and its design method provided with the micro- cone cylinder endoporus of multistage |
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| Publication Number | Publication Date |
|---|---|
| CN107869567A true CN107869567A (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711173173.3A Pending CN107869567A (en) | 2017-11-22 | 2017-11-22 | A kind of planetary gear and its design method provided with the micro- cone cylinder endoporus of multistage |
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| CN (1) | CN107869567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404844A (en) * | 2021-06-02 | 2021-09-17 | 浙江零跑科技股份有限公司 | Gluing structure is prevented to planetary gear's hole |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201461901U (en) * | 2009-05-18 | 2010-05-12 | 浙江天马轴承股份有限公司 | Planetary Gear Assemblies for Planetary Gearboxes |
| CN101915267A (en) * | 2010-08-24 | 2010-12-15 | 徐州科源液压有限公司 | Concave rolling passage needle bearing in planetary transmission mechanism |
| CN201747914U (en) * | 2010-08-24 | 2011-02-16 | 徐州科源液压有限公司 | Concave raceway needle bearing in planet transmission mechanism |
| CN203067715U (en) * | 2012-12-07 | 2013-07-17 | 杭州中天齿轮制造有限公司 | Easy-to-install planet wheel dedicated for planet carrier assembly |
| CN203363057U (en) * | 2013-06-19 | 2013-12-25 | 孙维 | Planet gear with improved structure |
| EP3034883A1 (en) * | 2014-12-16 | 2016-06-22 | Rotrex A/S | Centrifugal compressor |
-
2017
- 2017-11-22 CN CN201711173173.3A patent/CN107869567A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201461901U (en) * | 2009-05-18 | 2010-05-12 | 浙江天马轴承股份有限公司 | Planetary Gear Assemblies for Planetary Gearboxes |
| CN101915267A (en) * | 2010-08-24 | 2010-12-15 | 徐州科源液压有限公司 | Concave rolling passage needle bearing in planetary transmission mechanism |
| CN201747914U (en) * | 2010-08-24 | 2011-02-16 | 徐州科源液压有限公司 | Concave raceway needle bearing in planet transmission mechanism |
| CN203067715U (en) * | 2012-12-07 | 2013-07-17 | 杭州中天齿轮制造有限公司 | Easy-to-install planet wheel dedicated for planet carrier assembly |
| CN203363057U (en) * | 2013-06-19 | 2013-12-25 | 孙维 | Planet gear with improved structure |
| EP3034883A1 (en) * | 2014-12-16 | 2016-06-22 | Rotrex A/S | Centrifugal compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404844A (en) * | 2021-06-02 | 2021-09-17 | 浙江零跑科技股份有限公司 | Gluing structure is prevented to planetary gear's hole |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180403 |