CN104074952B - Planet-gear speed reducer with bearing without outer ring - Google Patents
Planet-gear speed reducer with bearing without outer ring Download PDFInfo
- Publication number
- CN104074952B CN104074952B CN201410254632.0A CN201410254632A CN104074952B CN 104074952 B CN104074952 B CN 104074952B CN 201410254632 A CN201410254632 A CN 201410254632A CN 104074952 B CN104074952 B CN 104074952B
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- Prior art keywords
- planet
- ring
- flange
- speed reducer
- bearing
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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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
- F16H57/02—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
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a planet-gear speed reducer with a bearing without an outer ring. Through using the bearing without the outer ring and a self-sealing connecting rack with a mounting flange at the outer end to replace an ordinary bearing structure, the diameter of an inner bearing ring is increased as far as possible in a limited space, enough mounting space is reserved for the shaft design in the practical application, the assembly technique is optimized, and the cost is lowered; and meanwhile, the bearing capacity, dynamic load resistance and impact resistance of the speed reducer are improved, and the service life of the speed reducer is prolonged.
Description
Technical field
The present invention relates to a kind of use the planet-gear speed reducer without race bearing, be adapted to the design of reductor, manufacture, belong to reductor technical field.
Background technology
Existing reductor; its output flange axle i.e. output shaft of output flange realizes the connection with reducer shell by rolling bearing mounted thereto; and normally used bearing is common standard bearing; often occurs causing because bearing size is limited Lack of support during use; the problems such as assembly technology is bad; and rely solely on common oil sealing at the installation sealing of output flange axle, usually environmental contaminants can be caused easily to be mingled with because there is no auxiliary sealing structure on flange or enter into phenomenons such as causing leakage of oil in early days at sealing lip.
Summary of the invention
It is an object of the invention to overcome in existing reductor, it is not enough to there is bearing capacity in the standard rolling bearing being arranged on output shaft, and assembly technology is bad and the problem of easy leakage of oil at sealing.
For achieving the above object, the invention provides and a kind of use the planet-gear speed reducer without race bearing, including reducer shell, it is arranged on the planet carrier in the decelerator body body, there is the output flange axle of flange barreled tooth flank and the outer end stretched out from reducer shell, output flange axle is coupled with planet carrier by barreled tooth flank, the inner end of output flange axle is provided with the locating part of the position limiting barreled tooth flank, it is characterized in that, be arranged with on output flange axle after being positioned at described barreled tooth flank outer end without race bearing, this self sealss link being provided by sealing ring without race bearing couples with reducer shell.
Above-mentioned self sealss link is the taper barrel that a inner is less, its outer end outer wall is provided with in order to install fixing extension round edge with reducer shell；
The medial surface that be tightly connected frame relative with without race bearing is arcwall face, and this arcwall face contacts with the rolling member without race bearing；
Being provided with sealing ring on self sealss link outer end inner wall, this sealing ring outer end is provided with dust excluder lips.
Above-mentioned flange just extend its interior dust-proof groove to being provided with in the card of dust excluder lips for this dust excluder lips；Or flange just to being provided with the dust ring being placed in above this dust excluder lips in the card of dust excluder lips, and the lower end of this dust ring downwardly extend contact with this dust excluder lips and along dust excluder lips to reducer shell direction extend so that this dust excluder lips is covered in.
By the sealing of O RunddichtringO, sealant sealing or sealed by interference fit between extension round edge and reducer shell.
Locating part is to have spacing and pressuring action locking nut.
Above-mentioned planet-gear speed reducer, also includes the boss back-up ring of the angle of oscillation in order to limit described flange being placed between reducer shell and flange；Boss back-up ring is arranged on the rear end end face of reducer shell or in the card of flange；
The inner ring diameter scope Φ 100mm to Φ 1000mm of boss back-up ring, race diameter scope Φ 110mm to Φ 1200mm, the axial wall thickness of back-up ring is 3mm to 40mm.
The swing rotary of planet carrier, barreled tooth flank, self sealss link, ring flange and bearing inner race is centrally disposed to be completely superposed.
Self sealss link the inner internal diameter span is in the range of Φ 20mm to Φ 1000mm, and external diameter span is in the range of Φ 50mm to Φ 1200mm；The tapering of self sealss link is 0.5 ° to 45 °.
The inner end of output flange axle is Surface of Sphere shape, matches with the ball-and-socket of described planet carrier, feels relieved planet carrier.
Without being cambered surface with self sealss link phase-contact surface outside race bearing, can swing along this cambered surface without race bearing, such that it is able to make ring flange realize significantly pivot angle, its pivot angle scope is 0 ° to 20 °.
The invention has the beneficial effects as follows: have the self sealss link of mounting flange to replace plain bearing structure by using without race bearing and outer end, thus reach to strengthen the diameter of bearing inner race in limited space as far as possible, in applying for reality, shaft design reserves enough installing spaces, optimize assembly technology, reduce cost, improve the bearing capacity of reductor, anti-dynamic loading, impact capacity, simultaneously, by the dust excluder lips that is arranged on sealing ring be arranged on flange surface dust-proof groove or dust ring with the use of, reduce the oil leakage fault of reductor, the reductor life-span is made to increase.
It is described in detail with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is a kind of to use the planet-gear speed reducer structural representation without race bearing；
Fig. 2 is self sealss link structural representations.
Fig. 3 is the self sealss link schematic diagram installing sealing ring.
Fig. 4 is the self sealss link schematic diagram being installed sealing ring by transition rings.
Description of reference numerals: 1, reductor；2, planet carrier；3, barreled tooth flank；4, reducer shell；5, boss back-up ring；6, flange；7, self sealss link；7-1, dust excluder lips；7-2, sealing ring；7-3, transition rings；7a, extension round edge；7b, seam；8, dust ring；9, without race bearing；10, swing rotary center；11, O RunddichtringO；12, locating part；13, output flange axle.
Detailed description of the invention
Embodiment one:
As shown in Figure 1, present embodiments provide and a kind of use the planet-gear speed reducer without race bearing, the planet carrier 2 that including reducer shell 4, is arranged in reducer shell 4, barreled tooth flank 3 and have the output flange axle 13 of flange 6 from the outer end that reducer shell 4 stretches out, output flange axle 13 is coupled with planet carrier 2 by barreled tooth flank 3, the inner end of output flange axle 13 is provided with the locating part 12 of the position limiting barreled tooth flank 3, select herein and there is spacing and pressuring action locking nut, improve the reliability connected.Be arranged with on output flange axle 13 after being positioned at barreled tooth flank 3 outer end without race bearing 9, this is coupled with reducer shell 4 by self sealss link 7 without race bearing 9.
By self sealss link 7 and the rolling member containing plain bearing without race bearing 9() coordinate fixing output flange axle 13 by the way of, the bearing inner race overcoming the existence of conventionally employed standard rolling bearing is limited, diameter cannot be large enough to do, the problem of Lack of support, thus reach to strengthen the diameter of bearing inner race in limited space as far as possible, in applying for reality, shaft design reserves enough installing spaces, optimizes assembly technology, reduces cost.
Embodiment two:
As shown in Figure 2, the present embodiment is compared with embodiment one, difference is, self sealss link 7 is the taper barrel that a inner is less, it is provided with on its outer end outer wall in order to the extension round edge 7a installed that is connected with reducer shell 4, the outer end inner wall of self sealss link 7 is provided with seam 7b, when reality manufactures, may be designed as: the inner internal diameter span of self sealss link 7 is in the range of Φ 20mm to Φ 1000mm, and external diameter span is in the range of Φ 50mm to Φ 1200mm；The tapering being tightly connected frame 7 is 0.5 to 45 °.Self sealss link 7 use 42CrMo, 40Cr, C45, GCr15, GCr15SiMn, GCr4,100CrMnSi4-1,100CrMnSi6-4,100CrMnMoSi8-4-6,52100,5195, UNSK19526,1070M, 5130, any one in 100CrMnSi6-4 make.
Visible in conjunction with Fig. 1, the medial surface of the self sealss link 7 relative with without race bearing 9 is arcwall face (arcwall face uses fine grinding technology processing, it is ensured that roller running up on its surface), and this arcwall face contacts with the rolling member without race bearing 9；Sealed by modes such as O RunddichtringO 11, fluid sealant, interference fit between extension round edge 7a and reducer shell 4, the problem overcoming traditional easy leakage of oil of interference fits sealing means.
Embodiment three:
High-visible in conjunction with Fig. 3, it is provided with sealing ring 7-2 on self sealss link 7 outer end inner wall, specifically can be directly embedded in by sealing ring 7-2 on the seam 7b of self sealss link 7 afterbody or be embedded on seam 7b by transition rings 7-3 shown in Fig. 4, sealing ring 7-2 outer end is provided with dust excluder lips 7-1.And flange 6 is just extending its interior dust-proof groove 6-1(traditional structure without this dust-proof groove to being provided with in the card of dust excluder lips 7-1 for this dust excluder lips 7-1, dust excluder lips is caused cruelly to leak in outside, pollutant are easily accessible or are mingled with, cause premature abrasion) or flange 6 just to being provided with the dust ring 8 being placed in above this dust excluder lips 7-1 in the card of dust excluder lips 7-1, and the lower end of this dust ring 8 downwardly extend contact with this dust excluder lips 7-1 and along dust excluder lips 7-1 to reducer shell 4 direction extend so that this dust excluder lips 7-1 is covered in.
It is embedded in dust-proof groove 6-1 by dust excluder lips 7-1, is effectively isolated environmental contaminants and enters, extend the aging of the first sealing ring 7-2 simultaneously, increase the service life.
And during with dust ring 8 replacement dust-proof groove 6-1, dust ring 8 is arranged on flange 6 purpose reaching the most dust-proof by screw and binding agent, effect is with dust-proof groove 6-1.
Embodiment four:
High-visible by Fig. 1, the planet-gear speed reducer that the present embodiment provides, in addition to including the composition (structure) that foregoing embodiments provides, also includes the boss back-up ring 5 of the angle of oscillation in order to limit flange 6 being placed between reducer shell 4 and flange 6；Boss back-up ring 5 is arranged on the rear end end face of reducer shell 4 or in the card of flange 6.Boss back-up ring 5 can be to be structure as a whole with reducer shell 4, and i.e. boss back-up ring 5 and reducer shell 4 are overall parts；Can also be to separate with reducer shell 4, i.e. boss back-up ring 5 be independent parts.The inner ring diameter scope Φ 100mm to Φ 1000mm of boss back-up ring 5, race diameter scope Φ 110mm to Φ 1200mm, back-up ring axial wall thickness 3mm to 40mm.Boss back-up ring 5 can also be arranged on flange 6 or be overall parts with flange 6.
The swing rotary center 10 of planet carrier 2, barreled tooth flank 3, self sealss link 7, ring flange 6 and bearing inner race 9 overlaps and arranges, it is ensured that good concentricity, and the swing component that is respectively associated realizes swinging with one heart.
Embodiment five:
In the present embodiment, without being cambered surface with self sealss link 7 phase-contact surface outside race bearing 9, can swing along this cambered surface without race bearing 9, such that it is able to make ring flange 6 realize significantly pivot angle, its pivot angle scope is 0 ° to 20 °.
Meanwhile, the shape of the inner end of output flange axle 13 is also designed as Surface of Sphere shape by the present embodiment, it is therefore an objective to match with the ball-and-socket on planet carrier 2, thus realizes the concentric restriction to planet carrier 2, to ensure the assembling concentricity requirement of planet carrier 2.
Claims (9)
1. one kind uses the planet-gear speed reducer without race bearing, including reducer shell (4), the planet carrier (2) being arranged in reducer shell (4), barreled tooth flank (3) and have the output flange axle (13) of flange (6) from the outer end that reducer shell (4) stretches out, output flange axle (13) is coupled with planet carrier (2) by barreled tooth flank (3), the inner end of output flange axle (13) is provided with the locating part (12) of the position limiting barreled tooth flank (3), it is characterized in that: be arranged with on described output flange axle (13) after being positioned at described barreled tooth flank (3) outer end without race bearing (9), this is coupled with reducer shell (4) by self sealss link (7) without race bearing (9)；Being cambered surface without race bearing (9) outside and self sealss link (7) phase-contact surface, can swing along this cambered surface without race bearing (9), such that it is able to make ring flange (6) realize significantly pivot angle, its pivot angle scope is 0 ° to 20 °.
2. the planet-gear speed reducer as described in claim 1, it is characterised in that: self sealss link (7) is the taper barrel that a inner is less, and its outer end outer wall is provided with the extension round edge (7a) in order to be connected with reducer shell (4)；The medial surface that be tightly connected frame (7) relative with without race bearing (9) is arcwall face, and this arcwall face contacts with the rolling member without race bearing (9)；Being provided with sealing ring (7-2) on self sealss link (7) outer end inner wall, this sealing ring (7-2) outer end is provided with dust excluder lips (7-1).
3. the planet-gear speed reducer as described in claim 2, it is characterised in that: it is provided with in the just card to described dust excluder lips (7-1) of described flange (6) and extends its interior dust-proof groove (6-1) for this dust excluder lips (7-1)；Or be provided with the dust ring (8) being placed in this dust excluder lips (7-1) top in flange (6) just card to described dust excluder lips (7-1), and the lower end of this dust ring (8) downwardly extend contact with this dust excluder lips (7-1) and along dust excluder lips (7-1) to the extension of reducer shell (4) direction so that this dust excluder lips (7-1) is covered in.
4. the planet-gear speed reducer as described in claim 2, it is characterised in that: seal (11), sealant sealing by O RunddichtringO between described extension round edge (7a) and reducer shell (4) or sealed by interference fit.
5. the planet-gear speed reducer as described in claim 1, it is characterised in that: described locating part (12) is for have spacing and pressuring action locking nut.
6. the planet-gear speed reducer as described in claim 1 or 2, it is characterised in that: also include the boss back-up ring (5) of the angle of oscillation in order to limit described flange (6) being placed between reducer shell (4) and flange (6)；Boss back-up ring (5) is arranged on the rear end end face of reducer shell (4) or in the card of flange (6)；The inner ring diameter scope Φ 100mm to Φ 1000mm of described boss back-up ring (5), race diameter scope Φ 110mm to Φ 1200mm, the axial wall thickness of back-up ring is 3mm to 40mm.
7. the planet-gear speed reducer as described in claim 1 or 2, it is characterised in that: the swing rotary center (10) of described planet carrier (2), barreled tooth flank (3), self sealss link (7), ring flange (6) and bearing inner race (9) arranges and is completely superposed.
8. the planet-gear speed reducer as described in claim 2, it is characterised in that: the inner internal diameter span of described self sealss link (7) is in the range of Φ 20mm to Φ 1000mm, and external diameter span is in the range of Φ 50mm to Φ 1200mm；The tapering of self sealss link (7) is 0.5 to 45 °.
9. the planet-gear speed reducer as described in claim 1, it is characterised in that: the inner end of described output flange axle (13) is Surface of Sphere shape, matches with the ball-and-socket of described planet carrier (2), feels relieved planet carrier (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254632.0A CN104074952B (en) | 2014-06-10 | 2014-06-10 | Planet-gear speed reducer with bearing without outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254632.0A CN104074952B (en) | 2014-06-10 | 2014-06-10 | Planet-gear speed reducer with bearing without outer ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074952A CN104074952A (en) | 2014-10-01 |
| CN104074952B true CN104074952B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410254632.0A Active CN104074952B (en) | 2014-06-10 | 2014-06-10 | Planet-gear speed reducer with bearing without outer ring |
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| Country | Link |
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| CN (1) | CN104074952B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565315B (en) * | 2015-01-15 | 2017-01-04 | 中铁工程机械研究设计院有限公司 | A kind of sealing device for power shovel hoisting drum |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02500044A (en) * | 1986-09-30 | 1990-01-11 | ツァーンラトファブリック フリードリッヒシャーフェン アクチエン ゲゼルシャフト | Wheel hub transmission with friction brakes |
| DE4235215A1 (en) * | 1992-10-20 | 1994-04-21 | Asug Getriebewerk Dessau Gmbh | Gear rim drive with gear rim and one or two pinions engaging with it - has transmission gear with drive shafts connected by dog clutch to pinions |
| CN202097839U (en) * | 2011-05-17 | 2012-01-04 | 赵铁栓 | Speed reduction driving device for mixing drum of concrete mixer truck |
| CN203384225U (en) * | 2012-12-11 | 2014-01-08 | 赵铁栓 | Reducer containing bearing |
| CN202992119U (en) * | 2012-12-24 | 2013-06-12 | 赵铁栓 | Limiting device for reducer output flange of concrete mixer truck |
| CN203880051U (en) * | 2014-06-10 | 2014-10-15 | 赵铁栓 | Planet gear speed reducer using bearing without outer ring |
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2014
- 2014-06-10 CN CN201410254632.0A patent/CN104074952B/en active Active
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| Publication number | Publication date |
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| CN104074952A (en) | 2014-10-01 |
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Application publication date: 20141001 Assignee: Transpower Hydraulic Engineering Xi'an Co., Ltd. Assignor: Zhao Tieshuan Contract record no.: 2018610000003 Denomination of invention: Planet-gear speed reducer with bearing without outer ring Granted publication date: 20170111 License type: Exclusive License Record date: 20180131 |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180223 Address after: No. 16, information Avenue, Xi'an high tech Zone, Shaanxi Province Patentee after: Transpower Hydraulic Engineering Xi'an Co., Ltd. Address before: 710119 information avenue of new industrial park, Xi'an, Shaanxi Province, No. 16 Patentee before: Zhao Tieshuan |