CN102996781A - Planet carrier with combination structure - Google Patents
Planet carrier with combination structure Download PDFInfo
- Publication number
- CN102996781A CN102996781A CN2012105778477A CN201210577847A CN102996781A CN 102996781 A CN102996781 A CN 102996781A CN 2012105778477 A CN2012105778477 A CN 2012105778477A CN 201210577847 A CN201210577847 A CN 201210577847A CN 102996781 A CN102996781 A CN 102996781A
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- Prior art keywords
- planet
- planet wheel
- shaped
- wheel shaft
- planet carrier
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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
- F16H57/04—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
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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
- F16H57/082—Planet carriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a planet carrier with a combination structure. The planet carrier comprises a planet carrier seat with a spline shaft hole manufactured at the center. The front view of the planet carrier seat is of an equilateral triangle structure, each top corner of the planet carrier seat is provided with a wipe-corner arc. Three through planet wheel shaft holes are manufactured on the planet carrier seat surrounding the spline shaft hole in equal radian and are located at the position of the corresponding corners of the planet carrier seat, a planet wheel shaft is installed and located in each planet wheel shaft hole in detachable mode, a cooling lubricating liquid runner is manufactured on each planet wheel shaft along the center axis in penetrating mode, at least one radial lubricating channel communicating the cooling lubricating liquid runner and the surface of the periphery of each planet wheel shaft is manufactured on the corresponding planet wheel shaft, and the planet wheel shafts and the planet carrier seat are fixedly assembled to form the planet carrier structure with multiple material assembly choices. The planet carrier is simple in manufacture process, convenient to process, high in production efficiency, capable of achieving volume production easily, not high in machining hot processing requirement and flexible in material selection and has the lubricating and radiating functions.
Description
Technical field
The present invention relates to mechanical transmissioning technology, especially the planetary carrier of oil hydraulic motor retarder, specifically a kind of planet carrier of composite structure.
Background technique
The planet wheel shaft of oil hydraulic motor retarder planet carrier and planet stand are generally overall structure in the prior art, and integrally-built planet carrier needs mold in the processing process.Moreover because the planet wheel shaft of planet carrier is direct and bearing fit, this just needs planet wheel shaft can carry very large load, so require the surface of planet wheel shaft must have the degree of depth of certain hardness and certain degree of hardness layer.But for integrally-built planet carrier because it is relatively harsher to requirement of machining and subsequent heat treatment, thereby manufacturing efficiency is low, and the product yield is difficult to improve, and once any one planet wheel shaft wearing and tearing whole scrapping then, virtually increase user cost, lacked commutativity.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned prior art present situation, and provides planet stand and planet wheel shaft can carry out the planet carrier of the adaptive a kind of composite structure of multiple choices in selection, processing, heat treatment.This planet carrier technique is simple, easy to manufacture, can realize volume production and have lubricated and heat sinking function.
The present invention solves the problems of the technologies described above the technological scheme that adopts: a kind of planet carrier of composite structure, comprise that the center is shaped with the planet stand of spline axis hole, the front view of planet stand is the equilateral triangle structure, and each drift angle of this planet stand all has the angle of smearing circular arc, the radians such as planet stand pressed on ring lap-ups key axis hole are shaped with three penetrating planet wheel axis holes, each planet wheel axis hole all is positioned at the corresponding drift angle of planet stand place, detachable location and installation has planet wheel shaft in the planet wheel axis hole, planet wheel shaft connects along central axis and is shaped with the cooling-lubricant runner, and be shaped with the radially lubrication channel that is communicated with at least together cooling-lubricant runner and planet wheel shaft outer surface on this planet wheel shaft, the fixing assembling of planet wheel shaft and planet stand consists of the two and has the planet carrier structure that the various material assembly is selected.
For optimizing technique scheme, Adopts measure also comprises:
Above-mentioned planet wheel shaft comprises the installation shaft part that is connected shaft part and cooperates with the bearing installation that installs cooperation with planet wheel axis hole location, and the intersegmental spacing table top that cooperates with the front hole end surface location of planet wheel axis hole that is formed with of shaft part and coupling shaft is installed, and above-mentioned radially lubrication channel is communicated to the outer circumferential face that planet wheel shaft is installed shaft part.
Be shaped with the toroidal cavity with cooling-lubricant runner concentric on the end face of above-mentioned installation shaft part, and install to be shaped with together on the outer surface of shaft part and clamp the first back-up ring draw-in groove that cooperates with circlip.
The shaft axis of three above-mentioned planet wheel axis holes is on same circumference, the back side of planet stand is encircled each planet wheel axis hole and all is shaped with the location cavity, and the back side of planet stand is formed with the little shape boss around the spline axis hole, and the front-end face of planet stand is a plane.
The rear end of above-mentioned planet wheel axis hole is expanded system and is processed with the inclined-plane, location, and correspondingly the connection shaft part rear end of planet wheel shaft is shaped with and locates contour localization and cooperate the location claw that prevents that planet wheel shaft from rotating in a circumferential direction.
The connection shaft part outer circumferential face of above-mentioned planet wheel shaft is shaped with axially extended spline groove, correspondingly is shaped with the spline tooth that matches with this spline groove in the planet wheel axis hole.
The connection shaft part of above-mentioned planet wheel shaft is shaped with tail end, and the diameter of tail end is less than the diameter that connects shaft part, and is shaped with the second back-up ring draw-in groove on this tail end side face, and card is furnished with check ring in the second back-up ring draw-in groove.
The front-end face of above-mentioned check ring matches with the location, bottom surface of location cavity.
Axially-aligned is shaped with twice and is communicated to the radially lubrication channel that the shaft part outer surface is installed on the above-mentioned installation shaft part.
Compared with prior art, planet carrier of the present invention is by the planet stand of Split type structure and the planet wheel shaft combination is equipped consists of, and Split type structure is not high to the machining heat treatment requirements, and very large flexibility is also arranged in selection in addition.Thereby up-to-standard rate is high in batch production, and manufacturing efficiency is high, easily realizes volume production.Also increase simultaneously the lubrication channel that lubricated and thermolysis have been arranged on the planet wheel shaft of Split type structure, further improved working life of the present invention.Advantage of the present invention and beneficial effect are:
1, Split type structure is without die sinking, the simple and low cost of manufacture of technique.
2, machining and heat treatment are more flexible, and surface quality is easy to hold.
3, batch production efficient is high, has reduced reject rate.
Description of drawings
Fig. 1 is the Facad structure schematic representation of the embodiment of the invention;
Fig. 2 is one of combination assumption diagram of the embodiment of the invention;
Fig. 3 be the embodiment of the invention combination assumption diagram two;
Fig. 4 is the sectional structure chart of planet stand among Fig. 2;
Fig. 5 is the sectional structure chart of planet stand among Fig. 3;
Fig. 6 is the structural representation of planet wheel shaft among Fig. 2;
Fig. 7 is the structural representation of planet wheel shaft among Fig. 3.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 to 7 is structural representation of the present invention.
Reference character wherein is: check ring A, circumference L, planet stand 1, spline axis hole 1a, planet wheel axis hole 1b, location inclined-plane 1c, smear angle circular arc 11, location cavity 12, bottom surface 121, little shape boss 13, spline tooth 14, planet wheel shaft 2, cooling-lubricant runner 2a, lubrication channel 2b radially, shaft part 21 is installed, end face 21a, toroidal cavity 211, the first back-up ring draw-in groove 212, connect shaft part 22, spline groove 22a, location claw 221, spacing table top 23, tail end 24, the second back-up ring draw-in groove 241.
Extremely shown in Figure 7 such as Fig. 1, the planet carrier of a kind of composite structure of the present invention, comprise that the center is shaped with the planet stand 1 of spline axis hole 1a, wherein: the front view of planet stand 1 is the equilateral triangle structure, and each drift angle of this planet stand 1 all has the angle of smearing circular arc 11, the radians such as planet stand 1 pressed on ring lap-ups key axis hole 1a are shaped with three penetrating planet wheel axis hole 1b, each planet wheel axis hole 1b all is positioned at planet stand 1 corresponding drift angle place, detachable location and installation has planet wheel shaft 2 among the planet wheel axis hole 1b, planet wheel shaft 2 connects along central axis and is shaped with cooling-lubricant runner 2a, and be shaped with the radially lubrication channel 2b that is communicated with at least together cooling-lubricant runner 2a and planet wheel shaft 2 outer surfaces on this planet wheel shaft 2, planet wheel shaft 2 and the 1 fixing assembling of planet stand consist of the two and have the planet carrier structure that the various material assembly is selected.The present invention is a kind of planet carrier that is applied on the oil hydraulic motor retarder, planet stand 1 and the planet wheel shaft 2 of such planet carrier in the conventional art are integrated part, the planet carrier of integral piece forms by the die sinking casting, its production technology is that follow-up machining and heat treatment has brought a lot of difficulties, therefore manufacture cost is high, and manufacturing efficiency is low.The two constitutes by planet stand 1 and planet wheel shaft 2 in the present invention, planet stand 1 and planet wheel shaft 2 just have very large flexibility on material is selected like this, planet wheel shaft 2 can select separately steel part or copper alloy made to form, also can select the heat treatment method different from planet stand 1, thereby the hardness on planet wheel shaft 2 surfaces and rigidity layer can both be guaranteed well.Simultaneously planet wheel shaft 2 of the present invention be shaped with respectively the cooling-lubricant runner 2a that is connected and radially lubrication channel 2b efficiently solve planet wheel shaft 2 surface radiatings and lubrication problem, thereby working life of also greatly having improved this product.Because the planet carrier of Split type structure is not high to the machining heat treatment requirements, the flexible selection of planet wheel shaft 2 and heat treatment have improved the up-to-standard rate in the product batch production and saved the cost of mold, thereby manufacturing process of the present invention is simple, and is easy to process, manufacturing efficiency is high, easily realizes volume production.
Embodiment one, among the embodiment such as Fig. 1, Fig. 2, Fig. 4 and shown in Figure 6, the planet carrier of a kind of composite structure of the present invention is made of planet stand 1 and planet wheel shaft 2 assemblings of Split type structure, the front view of planet stand 1 is with the equilateral triangle structure of smearing angle circular arc 11, the center of planet stand 1 is shaped with the spline axis hole 1a equipped with the spline output shaft, the radians such as planet stand 1 pressed on ring lap-ups key axis hole 1a are shaped with three penetrating planet wheel axis hole 1b, the shaft axis of three planet wheel axis hole 1b on same circumference L and each planet wheel axis hole 1b all be positioned at planet stand 1 corresponding drift angle place.The back side of planet stand 1 is encircled each planet wheel axis hole 1b and all is shaped with location cavity 12, and the back side of planet stand 1 is formed with the little shape boss 13 around spline axis hole 1a, and the front-end face of planet stand 1 is a plane.Planet wheel shaft 2 comprises with planet wheel axis hole 1b location and installs being connected shaft part 22 and with bearing the installation shaft part 21 that cooperates being installed of cooperation, and shaft part 21 is installed and is connected 22 of shaft parts and is formed with the front hole end surface of planet wheel axis hole 1b and locates the spacing table top 23 that cooperates.Planet wheel shaft 2 connects along central axis and is shaped with cooling-lubricant runner 2a, and axially-aligned is shaped with twice are communicated to installation shaft part 21 outer surfaces from cooling-lubricant runner 2a radially lubrication channel 2b on the installation shaft part 21 of planet wheel shaft 2.From Fig. 2 and Fig. 6, can find out, the toroidal cavity 211 that is shaped with on the end face 21a of shaft part 21 with cooling-lubricant runner 2a concentric is installed, and install to be shaped with together on the outer surface of shaft part 21 and clamp the first back-up ring draw-in groove 212 that cooperates with circlip.
For the assembling speed that improves product is connected the soundness that is connected with planet wheel shaft 2 with the planet stand, among the embodiment as shown in Figure 4 the rear end of planet wheel axis hole 1b expand system and be processed with location inclined-plane 1c, correspondingly connection shaft part 22 rear ends of planet wheel shaft 2 are shaped with and locate inclined-plane 1c location and cooperate the location claw 221 that prevents that planet wheel shaft 2 from rotating in a circumferential direction and coming off.
Embodiment two, among the embodiment such as Fig. 3, Fig. 5 and shown in Figure 7, the planet carrier of a kind of composite structure of the present invention is made of with planet wheel shaft 2 assemblings the planet stand 1 of Split type structure, planet wheel shaft 2 is fixedly mounted on the planet wheel axis hole 1b that planet stand 1 is shaped with.Planet wheel shaft 2 comprises with planet wheel axis hole 1b location and installs being connected shaft part 22 and with bearing the installation shaft part 21 that cooperates being installed of cooperation, and shaft part 21 is installed and is connected 22 of shaft parts and is formed with the front hole end surface of planet wheel axis hole 1b and locates the spacing table top 23 that cooperates.Such as Fig. 7 and shown in Figure 5, the outer circumferential face that connects shaft part 22 is shaped with axially extended spline groove 22a, correspondingly is shaped with the spline tooth 14 that matches with this spline groove 22a among the planet wheel axis hole 1b.Planet wheel shaft 2 can guarantee the positioning action of planet wheel shaft 2 better by the cooperation of spline groove 22a and spline tooth 14, and the connection shaft part 22 of planet wheel shaft 2 is shaped with tail end 24, the diameter of tail end 24 is less than the diameter that connects shaft part 22, be shaped with the second back-up ring draw-in groove 241, the second back-up ring draw-in grooves 241 interior cards on these tail end 24 side faces and be furnished with check ring A.The interaction energy of check ring A prevents planet wheel shaft 2 axial motions.As can be seen from Figure 1, be shaped with three planet wheel axis hole 1b on the planet stand 1 of the present invention, each planet wheel axis hole 1b all is fitted with planet wheel shaft 2, in order to improve the working life of planet wheel shaft 2, planet wheel shaft 2 connects along central axis and is shaped with cooling-lubricant runner 2a, and axially-aligned is shaped with twice are communicated to installation shaft part 21 outer surfaces from cooling-lubricant runner 2a radially lubrication channel 2b on the installation shaft part 21 of planet wheel shaft 2.The center of planet stand 1 of the present invention is shaped with the spline axis hole 1a equipped with the spline output shaft, three radians such as planet wheel axis hole 1b be looped around spline axis hole 1a around, the shaft axis of three planet wheel axis hole 1b is on same circumference L.The back side of planet stand 1 is encircled each planet wheel axis hole 1b and all is shaped with location cavity 12, and the back side of planet stand 1 is formed with the little shape boss 13 around spline axis hole 1a, and the front-end face of planet stand 1 is a plane.Check ring A just in time is arranged in location cavity 12, and the front-end face of check ring A matches with 121 location, bottom surface of location cavity 12.Other is all identical except the structure difference of the structure of the connection shaft part 22 of planet wheel shaft 2 and planet wheel axis hole 1b for present embodiment.
The invention discloses the planet carrier of two kinds of Split assembled structures, wherein, embodiment one has represented the advantage of Split type structure well, is one of effective method from producing simultaneously.Embodiment two compares the machining relative complex with embodiment one, but mounting or dismounting also are more prone to.Both are relative, and prior art is with the obvious advantage, and manufacturing efficiency is high, easily realizes volume production and has lubricating function, is suitable for all kinds of reducing gears and installs and uses.
Claims (9)
1. the planet carrier of a composite structure, comprise that the center is shaped with the planet stand (1) of spline axis hole (1a), it is characterized in that: the front view of described planet stand (1) is the equilateral triangle structure, and each drift angle of this planet stand (1) all has the angle of smearing circular arc (11), the radians such as described planet stand (1) pressed on ring lap-ups key axis hole (1a) are shaped with three penetrating planet wheel axis holes (1b), each described planet wheel axis hole (1b) all is positioned at the corresponding drift angle place of planet stand (1), detachable location and installation has planet wheel shaft (2) in the described planet wheel axis hole (1b), described planet wheel shaft (2) connects along central axis and is shaped with cooling-lubricant runner (2a), and be shaped with the radially lubrication channel (2b) that is communicated with at least together cooling-lubricant runner (2a) and planet wheel shaft (2) outer surface on this planet wheel shaft (2), the fixing assembling of described planet wheel shaft (2) and planet stand (1) consists of the two and has the planet carrier structure that the various material assembly is selected.
2. the planet carrier of a kind of composite structure according to claim 1, it is characterized in that: described planet wheel shaft (2) comprises the installation shaft part (21) that is connected shaft part (22) and cooperates with the bearing installation that installs cooperation with planet wheel axis hole (1b) location, and described installation shaft part (21) is formed with the spacing table top (23) that cooperates with the front hole end surface location of planet wheel axis hole (1b) with being connected between shaft part (22), described radially lubrication channel (2b) is communicated to the outer circumferential face that planet wheel shaft (2) is installed shaft part (21).
3. the planet carrier of a kind of composite structure according to claim 2, it is characterized in that: be shaped with the toroidal cavity (211) with cooling-lubricant runner (2a) concentric on the end face (21a) of described installation shaft part (21), and install to be shaped with together on the outer surface of shaft part (21) and clamp the first back-up ring draw-in groove (212) that cooperates with circlip.
4. the planet carrier of a kind of composite structure according to claim 3, it is characterized in that: the shaft axis of described three planet wheel axis holes (1b) is on same circumference (L), the back side of described planet stand (1) is encircled each planet wheel axis hole (1b) and all is shaped with location cavity (12), and the back side of planet stand (1) is formed with the little shape boss (13) around spline axis hole (1a), and the front-end face of planet stand (1) is a plane.
5. the planet carrier of a kind of composite structure according to claim 4, it is characterized in that: the rear end of described planet wheel axis hole (1b) is expanded system and is processed with inclined-plane (1c), location, and correspondingly connection shaft part (22) rear end of described planet wheel shaft (2) is shaped with and locates location, inclined-plane (1c) and cooperate the location claw (221) that prevents that planet wheel shaft (2) from rotating in a circumferential direction.
6. the planet carrier of a kind of composite structure according to claim 4, it is characterized in that: connection shaft part (22) outer circumferential face of described planet wheel shaft (2) is shaped with axially extended spline groove (22a), correspondingly is shaped with the spline tooth (14) that matches with this spline groove (22a) in the described planet wheel axis hole (1b).
7. the planet carrier of a kind of composite structure according to claim 6, it is characterized in that: the connection shaft part (22) of described planet wheel shaft (2) is shaped with tail end (24), the diameter of described tail end (24) is less than the diameter that connects shaft part (22), and be shaped with the second back-up ring draw-in groove (241) on this tail end (24) side face, card is furnished with check ring (A) in described the second back-up ring draw-in groove (241).
8. the planet carrier of a kind of composite structure according to claim 7 is characterized in that: the front-end face of described check ring (A) matches with the location, bottom surface (121) of location cavity (12).
9. it is characterized in that according to claim 5 or the planet carrier of 8 described a kind of composite structures: the upper axially-aligned of described installation shaft part (21) is shaped with twice and is communicated to the radially lubrication channel (2b) that shaft part (21) outer surface is installed.
Priority Applications (1)
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CN2012105778477A CN102996781A (en) | 2012-12-27 | 2012-12-27 | Planet carrier with combination structure |
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CN2012105778477A CN102996781A (en) | 2012-12-27 | 2012-12-27 | Planet carrier with combination structure |
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CN2012105778477A Pending CN102996781A (en) | 2012-12-27 | 2012-12-27 | Planet carrier with combination structure |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105134796A (en) * | 2015-08-12 | 2015-12-09 | 苏州安特实业有限公司 | Three-parallel boss structure |
US11313441B2 (en) * | 2018-12-21 | 2022-04-26 | Rolls-Royce Deutschland Ltd & Co Kg | Planetary gearbox and method for assembling a planetary gearbox |
CN115467940A (en) * | 2022-09-21 | 2022-12-13 | 宜宾四川大学产业技术研究院 | Many bosss are chromatogram planet case against current suitable for high rotational speed |
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FR2576067A1 (en) * | 1985-01-17 | 1986-07-18 | Ford France | AXIAL FIXING OF A SATELLITE SPROCKET AXLE |
DE29906157U1 (en) * | 1999-04-12 | 1999-12-09 | IWD Ingenieur Werner Dill GmbH & Co.KG, 61462 Königstein | Split planet carrier |
WO2005120877A1 (en) * | 2004-06-08 | 2005-12-22 | Ricardo Uk Ltd. | Epicyclic differential transmission |
CN102135129A (en) * | 2011-02-21 | 2011-07-27 | 安徽福马车桥有限公司 | Automobile drive axle wheel-side planet axle with oil duct |
CN201992002U (en) * | 2010-12-17 | 2011-09-28 | 无锡威孚中意齿轮有限责任公司 | Planetary gearing train structure |
CN202326933U (en) * | 2011-11-17 | 2012-07-11 | 启东万惠机械制造有限公司 | Split-type planet frame for rotary speed reducer |
CN102818003A (en) * | 2012-08-22 | 2012-12-12 | 无锡市闽仙汽车电器有限公司 | Planet carrier |
CN102829171A (en) * | 2012-09-13 | 2012-12-19 | 上海方鼎机电制造有限公司 | Integrated planet carrier |
CN202629042U (en) * | 2012-06-29 | 2012-12-26 | 盛瑞传动股份有限公司 | Planet carrier for automatic transmission |
CN202971858U (en) * | 2012-12-27 | 2013-06-05 | 宁波广天赛克思液压有限公司 | Combined-structure planet carrier |
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2012
- 2012-12-27 CN CN2012105778477A patent/CN102996781A/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2576067A1 (en) * | 1985-01-17 | 1986-07-18 | Ford France | AXIAL FIXING OF A SATELLITE SPROCKET AXLE |
DE29906157U1 (en) * | 1999-04-12 | 1999-12-09 | IWD Ingenieur Werner Dill GmbH & Co.KG, 61462 Königstein | Split planet carrier |
WO2005120877A1 (en) * | 2004-06-08 | 2005-12-22 | Ricardo Uk Ltd. | Epicyclic differential transmission |
CN201992002U (en) * | 2010-12-17 | 2011-09-28 | 无锡威孚中意齿轮有限责任公司 | Planetary gearing train structure |
CN102135129A (en) * | 2011-02-21 | 2011-07-27 | 安徽福马车桥有限公司 | Automobile drive axle wheel-side planet axle with oil duct |
CN202326933U (en) * | 2011-11-17 | 2012-07-11 | 启东万惠机械制造有限公司 | Split-type planet frame for rotary speed reducer |
CN202629042U (en) * | 2012-06-29 | 2012-12-26 | 盛瑞传动股份有限公司 | Planet carrier for automatic transmission |
CN102818003A (en) * | 2012-08-22 | 2012-12-12 | 无锡市闽仙汽车电器有限公司 | Planet carrier |
CN102829171A (en) * | 2012-09-13 | 2012-12-19 | 上海方鼎机电制造有限公司 | Integrated planet carrier |
CN202971858U (en) * | 2012-12-27 | 2013-06-05 | 宁波广天赛克思液压有限公司 | Combined-structure planet carrier |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105134796A (en) * | 2015-08-12 | 2015-12-09 | 苏州安特实业有限公司 | Three-parallel boss structure |
US11313441B2 (en) * | 2018-12-21 | 2022-04-26 | Rolls-Royce Deutschland Ltd & Co Kg | Planetary gearbox and method for assembling a planetary gearbox |
CN115467940A (en) * | 2022-09-21 | 2022-12-13 | 宜宾四川大学产业技术研究院 | Many bosss are chromatogram planet case against current suitable for high rotational speed |
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Address after: Jiangbei District, Zhejiang city of Ningbo Province China 315021 Street No. 195 Applicant after: SAIKESI HYDRAULIC TECHNOLOGY CO., LTD. Address before: Jiangbei District, Zhejiang city of Ningbo Province China 315021 Street No. 195 Applicant before: Ningbo Wide Sky SKS Hydraulic Co., Ltd. |
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Application publication date: 20130327 |