CN104329416A - Planetary gear device for automatic transmission - Google Patents

Planetary gear device for automatic transmission Download PDF

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Publication number
CN104329416A
CN104329416A CN201410579493.9A CN201410579493A CN104329416A CN 104329416 A CN104329416 A CN 104329416A CN 201410579493 A CN201410579493 A CN 201410579493A CN 104329416 A CN104329416 A CN 104329416A
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CN
China
Prior art keywords
gear
axis gear
minor axis
planet
frame plate
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.)
Granted
Application number
CN201410579493.9A
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Chinese (zh)
Other versions
CN104329416B (en
Inventor
孙德山
赵非
苏俊元
严丽丽
马静
关崴
柴召朋
赵玲
张海侠
杨林
张新鹏
王墨
张亮
王精
李晓宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Dongan Automotive Engine Manufacturing Co Ltd
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Harbin Dongan Automotive Engine Manufacturing Co Ltd
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Publication date
Application filed by Harbin Dongan Automotive Engine Manufacturing Co Ltd filed Critical Harbin Dongan Automotive Engine Manufacturing Co Ltd
Priority to CN201410579493.9A priority Critical patent/CN104329416B/en
Publication of CN104329416A publication Critical patent/CN104329416A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/46—Gearings having only two central gears, connected by orbital gears
    • 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
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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
    • 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)
  • General Details Of Gearings (AREA)

Abstract

The invention discloses a planetary gear device for an automatic transmission, relates to a planetary gear device, and aims at solving the problems that the welding deformation amount of an existing Ravigneaux planetary gear device is large, the existing Ravigneaux planetary gear device is difficult to process and the accuracy is difficult to guarantee. A planetary carrier is formed by connecting a first planetary carrier body with a second planetary carrier body in a welding way; the first planetary carrier body serves as a holding structure for one end of each of long shaft gears and short shaft gears; the second planetary carrier body serves as a holding structure for the other end of each of the long shaft gears and the short shaft gears; a plurality of welding bosses are arranged on the circumference of the first planetary carrier body and surround the outer sides of the short shaft gears; a plurality of long welding holes are formed in the circumference of the second planetary carrier body; the welding bosses and the long welding holes are welded together in a one-to-one correspondence way. The first planetary carrier body and the second planetary carrier body are connected in the welding way, so that the planetary carrier bodies are welded for only one step, the welding deformation amount is small, the device is easy to process, and therefore the accuracy of the planetary carrier bodies is improved.

Description

A kind of automatic transmission planetary gear device
Technical field
The present invention relates to a kind of planetary gear system, be specifically related to a kind of automatic transmission planetary gear device, belong to automotive transmission technical field.
Background technique
Usually, La Weina planetary gear system is used in automatic transmission, its planet carrier structure adopts multiple welding to connect usually, face that welding deformation amount is large, processing difficulties, precision is difficult to ensure the problem of card, and the structure of planet carrier structure three pieces of frame plates also can affect lubricating quality, gear is made to produce larger noise.La Weina planet carrier association part needs a large amount of lubrications just can ensure working life, and the structure of La Weina planet carrier directly affects the lubrication amount of other parts.And the noise of the noise of automatic transmission when mainly concentrating on working gear, the noise-reducing work of La Weina planet carrier is the object that automatic transmission noise reduction is paid close attention to always.
Summary of the invention
The present invention's problem that existing La Weina planetary gear system welding deformation amount is large, processing difficulties, precision are difficult to guarantee in order to solve, and then provide a kind of automatic transmission planetary gear device.
The present invention in order to solve the problems of the technologies described above taked technological scheme is:
A kind of automatic transmission planetary gear device of the present invention comprises planet carrier, first central gear, second central gear, multiple major axis gear and multiple minor axis gear, coaxially arrange about the first central gear and the second central gear, multiple minor axis gears meshing of the first central gear and its circumferential directions, minor axis gear again with multiple major axis gears meshing of the first central gear circumferential directions, the axial length of major axis gear is greater than the axial length of minor axis gear, major axis gear vertically right-hand member engages with the second central gear, major axis gear and minor axis gear are all arranged in planet carrier, major axis gear also can be rotated by the supporting of long planet gear axle, minor axis gear also can be rotated by the supporting of shor planet gear axle, long planet gear axle and shor planet gear axle are fixed in planet carrier,
Described planet carrier is formed by connecting by welding manner by first planet support body and the second planet support body;
First planet support body, as the holding structure of described major axis gear and described minor axis gear one end; Second planet support body, as the holding structure of the other end of described major axis gear and described minor axis gear;
First planet support body be circumferentially provided with multiple welding boss, welding boss is enclosed in the outside of minor axis gear, the second planet support body circumferentially offer multiple welding elongated hole, welding boss with weld elongated hole one_to_one corresponding and weld together;
The second external side of planet carrier is processed with the first spline and the second spline.
First planet support body and the second planet support body are by being welded to connect, and this planet carrier body only experiences and once welds like this, and welding deformation amount is little, processing is simple, thus improves the precision of planet support body.
Preferred: in described first planet support body, annular array has multiple minor axis gear frame plate and multiple major axis gear frame plate, the alternately arrangement of minor axis gear frame plate and major axis gear frame plate, and minor axis gear frame plate and major axis gear frame plate all offer axis hole, long planet gear axle and shor planet gear axle are separately fixed in the axis hole of major axis gear frame plate and the axis hole of minor axis gear frame plate by riveted joint.Setting like this, is convenient to mounting and adjusting.
In order to solve the problem that in La Weina planetary gear system running, lubricating quality is poor and operating noise is large, each minor axis gear frame plate of automatic transmission planetary gear device of the present invention is other all offers groove, and minor axis gear frame plate and major axis gear frame plate be not in same plane.Usual frame plate connects, the frame plate mediated inherently hinders the flowing of lubricant oil, is designed to not in same plane, can effectively removes this obstacle by minor axis gear frame plate and major axis gear frame plate, significantly improve lubrication effect, bring up to 500cc/min by existing 150cc/min.Meanwhile, the guarantee of planet carrier precision and by opening groove and another solder-bump is centered around outside minor axis gear, another minor axis retainer for gear plate and major axis retainer for gear plate significantly can not reduce noise and the vibration of planetary mechanism in same plane.
Preferred: the quantity of described major axis gear and minor axis gear is 3 or 4.
Preferred: the quantity of described welding boss and welding elongated hole is 3 or 4.
The present invention compared with prior art has following effect:
A kind of automatic transmission planetary gear device welding deformation amount of the present invention is little, processing is simple, precision is enough to ensure, and significantly improves lubrication effect, brings up to 500cc/min by existing 150cc/min.Meanwhile, the guarantee of planet carrier precision and by opening groove and another solder-bump is centered around outside minor axis gear, another minor axis retainer for gear plate and major axis retainer for gear plate significantly can not reduce noise and the vibration of planetary mechanism in same plane.
Accompanying drawing explanation
Fig. 1 is planetary gear system structural representation of the present invention;
Fig. 2 is the A-A line schematic cross-section along Fig. 1;
Fig. 3 is the B-B line schematic cross-section along Fig. 1;
Fig. 4 is planetary gear system schematic perspective view of the present invention;
Fig. 5 is first planet frame structure figure;
Fig. 6 is the second planet carrier body structure figure;
In figure: 2-planet carrier; 3-first central gear; 4-minor axis gear; 5-major axis gear; 6-second central gear; 7-shor planet gear axle; 8-long planet gear axle; 9-welds boss; 10-first planet support body; 11-minor axis gear frame plate; 12-major axis gear frame plate; 13-groove; 14-second planet support body; 15-first spline; 16-second spline; 17-welds elongated hole.
Embodiment
Embodiment: composition graphs 1 to Fig. 6 is described, a kind of automatic transmission planetary gear device of present embodiment comprises planet carrier 2, first central gear 3, second central gear 6, three major axis gears 5 and three minor axis gears 4, first central gear 3 and the second central gear about 6 are coaxially arranged, first central gear 3 engages with three minor axis gears 4 of its circumferential directions, minor axis gear 4 engages with three major axis gears 5 of the first central gear 3 circumferential directions again, the axial length of major axis gear 5 is greater than the axial length of minor axis gear 4, major axis gear 5 vertically right-hand member engages with the second central gear 6, major axis gear 5 and minor axis gear 4 are all arranged in planet carrier 2, major axis gear 5 is supported by long planet gear axle 8 and can rotate, minor axis gear 4 is supported by shor planet gear axle 7 and can rotate, long planet gear axle 8 and shor planet gear axle 7 are fixed in planet carrier 2, described planet carrier 2 is formed by connecting by welding manner by first planet support body 10 and the second planet support body 14, first planet support body 10, as the holding structure of described major axis gear and described minor axis gear one end, second planet support body 14, as the holding structure of the other end of described major axis gear and described minor axis gear, first planet support body 10 be circumferentially provided with three welding boss 9, welding boss 9 is enclosed in the outside of minor axis gear 4, the second planet support body 14 circumferentially offer three welding elongated holes 17, welding boss 9 with weld elongated hole 17 one_to_one corresponding and weld together, the first spline 15 and the second spline 16 is processed with outside second planet support body 14.First planet support body 10 and the second planet support body 14 are by being welded to connect, and this planet carrier body only experiences and once welds like this, and welding deformation amount is little, processing is simple, thus improves the precision of planet support body.
In described first planet support body 10, annular array has three minor axis gear frame plates 11 and three major axis gear frame plates 12, the alternately arrangement of minor axis gear frame plate 11 and major axis gear frame plate 12, and minor axis gear frame plate 11 and major axis gear frame plate 12 all offer axis hole, long planet gear axle 8 and shor planet gear axle 7 are separately fixed in the axis hole of major axis gear frame plate 12 and the axis hole of minor axis gear frame plate 11 by riveted joint.Setting like this, is convenient to mounting and adjusting.
Each minor axis gear frame plate 11 of automatic transmission planetary gear device is other all offers groove 13, and minor axis gear frame plate 11 and major axis gear frame plate 12 be not in same plane.Usual frame plate connects, the frame plate mediated inherently hinders the flowing of lubricant oil, is designed to not in same plane, can effectively removes this obstacle by minor axis gear frame plate 11 and major axis gear frame plate 12, significantly improve lubrication effect, bring up to 500cc/min by existing 150cc/min.Meanwhile, the guarantee of planet carrier precision and by opening groove 13 and another solder-bump 9 is centered around outside minor axis gear 4, another minor axis retainer for gear plate 11 and major axis retainer for gear plate 12 significantly can not reduce noise and the vibration of planetary mechanism in same plane.
The exemplary illustration of present embodiment just to this patent, does not limit its protection domain, and those skilled in the art can also change, as long as no the Spirit Essence exceeding this patent, in the protection domain of this patent its local.

Claims (6)

1. an automatic transmission planetary gear device, comprise planet carrier (2), first central gear (3), second central gear (6), multiple major axis gear (5) and multiple minor axis gear (4), first central gear (3) is coaxially arranged with the second central gear (6) left and right, first central gear (3) engages with multiple minor axis gears (4) of its circumferential directions, minor axis gear (4) engages with multiple major axis gears (5) of the first central gear (3) circumferential directions again, the axial length of major axis gear (5) is greater than the axial length of minor axis gear (4), major axis gear (5) vertically right-hand member engages with the second central gear (6), major axis gear (5) and minor axis gear (4) are all arranged in planet carrier (2), major axis gear (5) also can be rotated by long planet gear axle (8) supporting, minor axis gear (4) also can be rotated by shor planet gear axle (7) supporting, long planet gear axle (8) and shor planet gear axle (7) are fixed in planet carrier (2),
It is characterized in that: described planet carrier (2) is formed by connecting by welding manner by first planet support body (10) and the second planet support body (14);
First planet support body (10), as the holding structure of described major axis gear and described minor axis gear one end; Second planet support body (14), as the holding structure of the other end of described major axis gear and described minor axis gear;
First planet support body (10) be circumferentially provided with multiple welding boss (9), welding boss (9) is enclosed in the outside of minor axis gear (4), second planet support body (14) circumferentially offer multiple welding elongated hole (17), welding boss (9) with weld elongated hole (17) one_to_one corresponding and weld together;
Second planet support body (14) outside is processed with the first spline (15) and the second spline (16).
2. a kind of automatic transmission planetary gear device according to claim 1, it is characterized in that: the interior annular array of described first planet support body (10) has multiple minor axis gear frame plate (11) and multiple major axis gear frame plate (12), the alternately arrangement of minor axis gear frame plate (11) and major axis gear frame plate (12), and minor axis gear frame plate (11) and major axis gear frame plate (12) all offer axis hole, long planet gear axle (8) and shor planet gear axle (7) are separately fixed in the axis hole of major axis gear frame plate (12) and the axis hole of minor axis gear frame plate (11) by riveted joint.
3. a kind of automatic transmission planetary gear device according to claim 2, is characterized in that: each minor axis gear frame plate (11) is other all offers groove (13), and minor axis gear frame plate (11) and major axis gear frame plate (12) be not in same plane.
4. a kind of automatic transmission planetary gear device according to claim 3, is characterized in that: the below of described each minor axis gear frame plate (11) is equipped with groove.
5. a kind of automatic transmission planetary gear device according to claim 1, is characterized in that: the quantity of described major axis gear (5) and minor axis gear (4) is 3 or 4.
6. a kind of automatic transmission planetary gear device according to claim 4, is characterized in that: the quantity of described welding boss (9) and welding elongated hole (17) is 3 or 4.
CN201410579493.9A 2014-10-27 2014-10-27 A kind of automatic transmission planetary gear device Active CN104329416B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN104329416B CN104329416B (en) 2016-08-31

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105221721A (en) * 2015-10-13 2016-01-06 哈尔滨东安汽车发动机制造有限公司 A kind of planetary carrier
CN107178606A (en) * 2017-06-07 2017-09-19 包敢锋 A kind of pinion frame
CN107664579A (en) * 2017-11-20 2018-02-06 哈尔滨东安汽车发动机制造有限公司 Transmission gear, which is uttered long and high-pitched sounds, engages order extraction and decision method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070111847A1 (en) * 2005-11-17 2007-05-17 Aisin Aw Co., Ltd. Planetary gear train and driving unit having the same
CN101387336A (en) * 2007-09-12 2009-03-18 Gkn动力传动国际有限公司 Limited slip differential with end teeth
CN201351714Y (en) * 2008-11-27 2009-11-25 国茂减速机集团有限公司 Dead shaft type multi-level planet gear speed reducer
JP2010181012A (en) * 2009-02-09 2010-08-19 Honda Motor Co Ltd Planetary carrier
CN201826842U (en) * 2010-08-11 2011-05-11 西安煤矿机械有限公司 Coal-winning machine reducer planet carrier
CN103363082A (en) * 2012-04-04 2013-10-23 金属成型及铸币公司 Torque transmitting assembly and method of producing
CN103574001A (en) * 2012-07-30 2014-02-12 福特全球技术公司 Pinion carrier assembly
DE102012216445A1 (en) * 2012-09-14 2014-03-20 Schaeffler Technologies Gmbh & Co. Kg Planetary gear e.g. differential gear box, for motor car, has driving wheel arranged in flange region, and planet carrier positioned in functional areas and radially provided in inner side of driving wheel
JP2014077487A (en) * 2012-10-10 2014-05-01 Unipres Corp Carrier plate in carrier for planetary gear mechanism

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070111847A1 (en) * 2005-11-17 2007-05-17 Aisin Aw Co., Ltd. Planetary gear train and driving unit having the same
CN101387336A (en) * 2007-09-12 2009-03-18 Gkn动力传动国际有限公司 Limited slip differential with end teeth
CN201351714Y (en) * 2008-11-27 2009-11-25 国茂减速机集团有限公司 Dead shaft type multi-level planet gear speed reducer
JP2010181012A (en) * 2009-02-09 2010-08-19 Honda Motor Co Ltd Planetary carrier
CN201826842U (en) * 2010-08-11 2011-05-11 西安煤矿机械有限公司 Coal-winning machine reducer planet carrier
CN103363082A (en) * 2012-04-04 2013-10-23 金属成型及铸币公司 Torque transmitting assembly and method of producing
CN103574001A (en) * 2012-07-30 2014-02-12 福特全球技术公司 Pinion carrier assembly
DE102012216445A1 (en) * 2012-09-14 2014-03-20 Schaeffler Technologies Gmbh & Co. Kg Planetary gear e.g. differential gear box, for motor car, has driving wheel arranged in flange region, and planet carrier positioned in functional areas and radially provided in inner side of driving wheel
JP2014077487A (en) * 2012-10-10 2014-05-01 Unipres Corp Carrier plate in carrier for planetary gear mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105221721A (en) * 2015-10-13 2016-01-06 哈尔滨东安汽车发动机制造有限公司 A kind of planetary carrier
CN107178606A (en) * 2017-06-07 2017-09-19 包敢锋 A kind of pinion frame
CN107178606B (en) * 2017-06-07 2024-03-22 无锡市恒特力金属制品有限公司 Planet gear rack
CN107664579A (en) * 2017-11-20 2018-02-06 哈尔滨东安汽车发动机制造有限公司 Transmission gear, which is uttered long and high-pitched sounds, engages order extraction and decision method

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