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CN103591231A - Power splitting planetary ring bevel gear type stepless speed changer - Google Patents

Power splitting planetary ring bevel gear type stepless speed changer Download PDF

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Publication number
CN103591231A
CN103591231A CN201310531303.1A CN201310531303A CN103591231A CN 103591231 A CN103591231 A CN 103591231A CN 201310531303 A CN201310531303 A CN 201310531303A CN 103591231 A CN103591231 A CN 103591231A
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Prior art keywords
bevel gear
planetary
gear
ring
power
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CN103591231B (en
Inventor
毛虎平
王军
董小瑞
杨世文
张翼
李建军
张艳岗
冯耀南
尤国栋
徐俊峰
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North University of China
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North University of China
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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
    • 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
    • F16H3/76—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with an orbital gear having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable
    • 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
    • F16H57/08—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)
  • Transmission Devices (AREA)
  • Friction Gearing (AREA)

Abstract

本发明提供一种功率分流行星环锥齿轮式无级变速器，对行星环锥齿轮式无级变器和差动轮系进行组合，通过行星环锥齿轮自转与公转以及差动轮系来传递小部分功率，通过动力输入轴与行星架来传递大部分功率，两部分功率在同步行星轮处合成并传递给输出轴，完成功率分流，通过改变调速环与行星环锥齿轮的接触半径实现无级变速传动，本发明具有传动平稳，起动性良好，在满负荷下可稳步从零起动，适应变工况工作，使用寿命长，变速范围广的优点，与现有的行星式无级变速器相比，能够使功率分流的同时避免功率回流实现传递大功率，使几何滑动减小到最小，实现传动的效率更高。

Figure 201310531303

The invention provides a planetary ring bevel gear type continuously variable transmission with power splitting, which combines the planetary ring bevel gear type continuously variable transmission and the differential gear train, and transmits the power through the rotation and revolution of the planetary ring bevel gear and the differential gear train A small part of the power is transmitted through the power input shaft and the planet carrier, and the two parts of power are synthesized at the synchronous planetary gear and transmitted to the output shaft to complete the power split, which is realized by changing the contact radius between the governor ring and the planetary ring bevel gear Continuously variable speed transmission, the invention has the advantages of stable transmission, good starting performance, stable starting from zero under full load, adaptable to variable working conditions, long service life and wide range of speed change, compared with the existing planetary continuously variable transmission In comparison, it is possible to split power while avoiding power backflow to transmit high power, minimize geometric slip, and achieve higher transmission efficiency.

Figure 201310531303

Description

Power dividing planet ring bevel gear type stepless speed variator
Technical field
The present invention relates to a kind of mechanically operated stepless speed variator, specifically a kind of power dividing planet ring bevel gear type stepless speed variator.
Background technique
At present, the kind of drive of stepless speed variator is divided three classes, and is respectively hydraulic transmission, electric drive, mechanical transmission.Hydraulicdriven stepless speed variator accuracy of manufacturing requires high, price, and because output characteristics is permanent torque, sliding ratio is larger, and oil leakage phenomenon easily occurs during running; Electrically-driven stepless speed variator can be divided into again electromagnetism sliding type stepless speed variator, DC motor type stepless speed variator and Wechselstrommotor formula stepless speed variator, they exist, and sliding ratio is large, inefficiency, be not suitable for long-term debt running, equipment is complicated, cost is high, mechanical property presents the shortcomings such as permanent moment of torsion, galloping in reduction of speed section; And that mechanically operated stepless speed variator has is simple in structure, easy to maintenance, price is relatively cheap, stabilization of speed, sliding ratio are little, reliable operation, because the main frictionally of mechanical transmission stepless speed variator improves power, therefore bearing capacity is lower, in being generally applicable to, low power transmission.
Summary of the invention
Object of the present invention is just to provide a kind of power dividing planet ring bevel gear type stepless speed variator, compare with existing planet type continuous variable transmission, can transmit the high-power power of simultaneously avoiding by power dividing and reflux, geometric slide rate is reduced to minimum, make the efficiency of transmission higher.
The present invention for the technological scheme that realizes above-mentioned object and take is: power dividing planet ring bevel gear type stepless speed variator, comprise power input shaft, speed ring, planet ring bevel gear, planet ring bevel gear retainer, little support ring, large support ring, active center bevel gear, driven center bevel gear, synchronous cylindrical gears, center inside engaged gear, synchronous inside engaged gear, planet carrier, planet wheel, output center wheel, pto＝power take-off, it is characterized in that: power input shaft and speed ring drive planet ring bevel gear, planet ring bevel gear is revolved round the sun around central axis with power input shaft on the one hand, the star ring bevel gear retainer that detours is again done rotation simultaneously, the two synthetic planetary motion transmit fraction power by driven center bevel gear and synchronous cylindrical gears to planet wheel, from most of power of power input shaft input, be directly passed to planet carrier, planet carrier passes to planet wheel again, synthesizes, then export by output shaft with fraction power by planet wheel.
Described power input shaft and described active center bevel gear are connected, the planet ring cone small gear engagement transferring power on described active center bevel gear and described planet ring bevel gear; In the middle of described planet ring bevel gear, be provided with planet ring bevel gear cirque body, described planet ring bevel gear cirque body and described little support ring and the described planet ring of the corresponding support of described large support ring bevel gear, to subtract the tilting moment of asteroid ring bevel gear.
Between described synchronous cylindrical gears and described center inside engaged gear, access a fixed axis gear.
A synchronous planetary pinion, described synchronous planetary pinion and the engagement of output center wheel are connected on described planetary pinion.
The beneficial effect that the present invention brings is: power dividing planet ring bevel gear type stepless speed variator has stable drive, startability is good, can be steadily from zero starting under at full capacity, adapt to variable working condition, long service life, the advantage such as slewing range is wide, compares with existing planet type continuous variable transmission, when can make power dividing, avoid power to reflux, make the efficiency of transmission higher.
Accompanying drawing explanation
Fig. 1 is drive mechanism schematic diagram of the present invention.
Fig. 2 is planet ring bevel gear enlarged view.
In Fig. 1 and Fig. 21, power input shaft; 2, planet ring bevel gear; 3, speed ring; 4, little supporting frame; 5, large supporting frame; 6, active center bevel gear; 7, planet ring bevel gear retainer; 8, driven center bevel gear; 9, synchronous cylindrical gears; 10, fixed axis gear; 11, center inside engaged gear; 12, synchronous inside engaged gear; 13, planet wheel; 14, synchronous planetary pinion; 15 planet carriers; 16, output center wheel; 17, output shaft; 18, planet ring bevel gear conical surface; 19, planet ring bevel gear cirque body; 20, planet ring cone gearwheel; 21, planet ring cone small gear; 22, planet ring bevel gear is supported small column; 23, leverage; 24, center inside engaged gear retainer;
Figure 936125DEST_PATH_IMAGE001
, planet ring bevel gear 1 rotation radius; , planet ring bevel gear 1 revolution radius.
Fig. 3 is power dividing stepless speed variator simplified model figure.
P, planet ring bevel gear type stepless speed variator in figure; X, 2K-H positive sign differential gear train; A, input end; B, output terminal; A, b, e are three external parts of planet ring bevel gear type stepless speed variator; G, d, h are three external parts of 2K-H positive sign differential gear train.
Embodiment
Power dividing ring bevel gear type stepless speed variator, transmission principle is the combination of the stepless change device of planet ring bevel gear type and differential gear train, drive mechanism as shown in Figure 1, comprises power input shaft 1, planet ring bevel gear 2, speed ring 3, ramuscule pushing out ring 4, large support ring 5, active center bevel gear 6, planet ring bevel gear retainer 7, driven center bevel gear 8, synchronous cylindrical gears 9, fixed axis gear 10, center inside engaged gear 11, synchronous inside engaged gear 12, planet wheel 13, synchronous planetary pinion 14, planet carrier 15, output center wheel 16, output shaft 17; Ramuscule pushing out ring 4, large support ring 5 and planet ring bevel gear retainer 7 empty sets are on power input shaft 1, and active center bevel gear 6 and planet carrier 15 are connected on power input shaft 1;
The structure of planet ring bevel gear 2 as shown in Figure 2, comprise planet ring bevel gear conical surface 18, planet ring bevel gear cirque body 19, planet ring cone gearwheel 20, planet ring cone small gear 21 and planet ring bevel gear support small column 22, planet ring bevel gear 2 is an angle and tilts, make an outer contour maintenance level of planet ring bevel gear conical surface 18, and around 3～5 gears of central shaft circle distribution, during speed governing, change speed ring 3 and planet ring bevel gear 2 rotation radiuses
Figure 639825DEST_PATH_IMAGE003
, reached infinite variable speed object, no matter in speed governing or while turning round, speed ring 3 does not rotate.
Under working state, particularly, in speed regulation process, there is tilting moment in planet ring bevel gear 2, makes it have certain amount of floating, thereby reduce transmission efficiency, shortens the life-span of planet ring bevel gear, in order to improve this shortcoming, so planet ring bevel gear cirque body 19 is set between planet ring cone gearwheel 20 and planet ring bevel gear conical surface 18, ramuscule pushing out ring 4 and large support ring 5 be corresponding with planet ring bevel gear cirque body 19 supports planet ring bevel gear 2, can be equilibrated at the tilting moment producing in speed regulation process like this, not only can improve the drive characteristic of planet ring cone gearwheel 20 and planet ring cone small gear 21, and the life-span that can improve speed ring 3 and planet ring bevel gear conical surface 18, reduce slippage, overcome the large shortcoming of planet circular cone type stepless speed variator geometric slide rate, improve transmission efficiency.
During the work of power dividing ring bevel gear type stepless speed variator, power directly passes to pto＝power take-off 1 again from pto＝power take-off 1 or by reducing gear, most of power is directly delivered to planet carrier 15, fraction power is delivered to active center ring bevel gear 6, active center ring bevel gear 6 and 21 engagements of planet ring cone small gear, then, by speed ring 3 and the frictional force of planet ring bevel gear conical surface 18, be delivered to planet ring cone gearwheel 20, planet ring cone gearwheel 20 meshes with driven center bevel gear 8 again, driven center bevel gear 8 is given synchronous cylindrical gears 9 by transmission of power, pass through afterwards fixed axis gear 10, center inside engaged gear 11, synchronous inside engaged gear 12, planet wheel 13, two-part power is synthetic on planet wheel 13, again through synchronous planetary pinion 14 and output center wheel 16, by output shaft 17, exported.Its velocity ratio formula is:
Figure 283296DEST_PATH_IMAGE004
＝
Figure 618462DEST_PATH_IMAGE005
Wherein,
Figure 285067DEST_PATH_IMAGE006
=
Figure 363881DEST_PATH_IMAGE007
,
Figure 861859DEST_PATH_IMAGE008
the velocity ratio that represents respectively driven center bevel gear 8 and active center bevel gear 6, all
Figure 321921DEST_PATH_IMAGE009
represent the number of teeth, its subscript represents corresponding gear;
Figure 272560DEST_PATH_IMAGE001
,
Figure 155065DEST_PATH_IMAGE010
be respectively planet ring bevel gear rotation radius and revolution radius.
In above-mentioned power transmission process, from driven center bevel gear 8, output to synchronous cylindrical gears 9, synchronous cylindrical gears 9 can be directly and center inside engaged gear 11 mesh, but in order to make power there is no backflow phenomenon, between synchronous cylindrical gears 9 and center inside engaged gear 11, access a fixed axis gear 10, 11 engagements of fixed axis gear 10Yu center inside engaged gear, to synchronous inside engaged gear 12, synchromesh gear 12 and planet wheel 13 engagements, with the synthetic output of planet carrier 15, planet wheel 13 can be directly and the 16 engagement outputs of output center wheel, but for fear of existing power to reflux, a synchronous planetary pinion 14 is connected on planet wheel 13, by synchronous planetary pinion 14 and 16 engagements of output center wheel, complete power dividing and electrodeless variable-speed transmission.
Fig. 3 is power dividing stepless speed variator simplified model figure, and in figure, P represents planet ring bevel gear type stepless speed variator, and X represents 2K-H positive sign differential gear train.A, B are respectively input, output terminal; A, b, e are three external parts of planet ring bevel gear type stepless speed variator; G, d, h are three external parts of 2K-H positive sign differential gear train.Total efficiency is:
Figure 445232DEST_PATH_IMAGE011
Wherein, all subscripts represent with respect to it, such as
Figure 387780DEST_PATH_IMAGE012
represent that power is delivered to h with respect to the transmission efficiency with d from g.
Fig. 3 has illustrated the principle of power dividing, while carrying out an invention patent, the velocity ratio of well-designed differential gear train, makes it avoid power recirculating zone, really realizes power dividing, overcomes the little shortcoming of planet circular cone type stepless speed variator transmitted power.

Claims (4)

1.功率分流行星环锥齿轮式无级变速器，包括动力输入轴、调速环、行星环锥齿轮、行星环锥齿轮保持架、小支撑环、大支撑环、主动中心锥齿轮、从动中心锥齿轮、同步圆柱齿轮、中心内啮合齿轮、同步内啮合齿轮、行星架、行星轮、输出中心轮、动力输出轴，其特征在于：动力输入轴和调速环驱动行星环锥齿轮，行星环锥齿轮一方面随动力输入轴绕中心轴线公转，同时又绕行星环锥齿轮保持架作自转，二者合成的行星运动传递小部分功率通过从动中心锥齿轮和同步圆柱齿轮到行星轮；从动力输入轴输入的大部分功率直接传递给行星架，行星架再传递给行星轮，与小部分功率通过行星轮合成，再通过输出轴输出。 1. Power split planetary bevel gear type continuously variable transmission, including power input shaft, speed regulating ring, planetary bevel gear, planetary bevel gear cage, small support ring, large support ring, active center bevel gear, driven Central bevel gear, synchronous cylindrical gear, central internal gear, synchronous internal gear, planetary carrier, planetary gear, output sun gear, power output shaft, characterized in that: the power input shaft and speed regulating ring drive the planetary ring bevel gear, planetary On the one hand, the ring bevel gear revolves around the central axis with the power input shaft, and at the same time it rotates around the planet ring bevel gear cage. The planetary motion synthesized by the two transmits a small part of power through the driven center bevel gear and synchronous cylindrical gear to the planetary gear. ; Most of the power input from the power input shaft is directly transmitted to the planetary carrier, and then the planetary carrier is transmitted to the planetary gear, and a small part of the power is synthesized through the planetary gear, and then output through the output shaft. 2.根据权利要求1所述功率分流行星环锥齿轮式无级变速器，其特征在于：所述动力输入轴与所述主动中心锥齿轮固连，所述主动中心锥齿轮与所述行星环锥齿轮上的行星环锥小齿轮啮合传递动力；所述行星环锥齿轮中间设置有行星环锥齿轮圆环体，所述行星环锥齿轮圆环体与所述小支撑环和所述大支撑环对应支撑所述行星环锥齿轮，以减小行星环锥齿轮的倾翻力矩。 2. The power split planetary ring bevel gear type continuously variable transmission according to claim 1, characterized in that: the power input shaft is fixedly connected to the active central bevel gear, and the active central bevel gear is connected to the planetary ring The planetary ring bevel pinion on the bevel gear meshes to transmit power; the planetary ring bevel gear ring body is arranged in the middle of the planetary ring bevel gear, and the planetary ring bevel gear ring body is connected with the small support ring and the large support ring. The ring correspondingly supports the planetary ring bevel gear to reduce the tilting moment of the planetary ring bevel gear. 3.根据权利要求1所述的功率分流行星环锥齿轮式无级变速器，其特征在于：所述同步圆柱齿轮和所述中心内啮合齿轮之间接入一个定轴齿轮。 3. The power splitting planetary ring bevel gear type continuously variable transmission according to claim 1, characterized in that: a fixed shaft gear is inserted between the synchronous cylindrical gear and the central internal meshing gear. 4.根据权利要求1所述的功率分流行星环锥齿轮式无级变速器，其特征在于：所述行星齿轮上固连一个同步行星齿轮，所述同步行星齿轮与输出中心轮啮合。 4. The power splitting planetary ring bevel gear type continuously variable transmission according to claim 1, characterized in that a synchronous planetary gear is fixedly connected to the planetary gear, and the synchronous planetary gear meshes with the output sun gear.
CN201310531303.1A 2013-11-01 2013-11-01 Power dividing planet ring bevel gear type stepless speed variator Expired - Fee Related CN103591231B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791047A (en) * 2014-02-25 2014-05-14 合肥工业大学 Variable transmission system for helicopter
CN105840756A (en) * 2016-05-17 2016-08-10 中北大学 Positive pressure adaptive planetary ring bevel gear power split continuously variable transmission
CN108105347A (en) * 2018-01-23 2018-06-01 张敏 Diameter type variable multi-gear is combined into equivalent gear-driven buncher
CN111765222A (en) * 2020-06-19 2020-10-13 熊一洲 CVT, CVT method and application
CN113236718A (en) * 2021-06-16 2021-08-10 上海中联重科桩工机械有限公司 Cutting speed reducer, cutting part and heading machine
CN115143251A (en) * 2022-07-22 2022-10-04 扬州大学 Large-span transmission ratio compound transmission continuously variable transmission

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108386538A (en) * 2018-03-25 2018-08-10 大连碧蓝节能环保科技有限公司 Planetary gear stepless speed changing retarder

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Publication number Priority date Publication date Assignee Title
CN85106904A (en) * 1985-09-08 1986-07-02 熊介良 The top pendulum-type is stepless, a grade planetary charge drive device is arranged
CN2035820U (en) * 1988-08-18 1989-04-12 余茂芃 Automatic mechanical-control friction stepless speed changing device
CN2050505U (en) * 1989-04-20 1990-01-03 浙江省宁波市海洋渔业公司渔机厂 Stageless speed variator with mechanical self-control and hand adjusting speed limit
CN1045849A (en) * 1990-05-09 1990-10-03 李德才 Stepless speed variator
CN2237147Y (en) * 1995-10-19 1996-10-09 崔松竹 Planetary gear stepless speed reducing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85106904A (en) * 1985-09-08 1986-07-02 熊介良 The top pendulum-type is stepless, a grade planetary charge drive device is arranged
CN2035820U (en) * 1988-08-18 1989-04-12 余茂芃 Automatic mechanical-control friction stepless speed changing device
CN2050505U (en) * 1989-04-20 1990-01-03 浙江省宁波市海洋渔业公司渔机厂 Stageless speed variator with mechanical self-control and hand adjusting speed limit
CN1045849A (en) * 1990-05-09 1990-10-03 李德才 Stepless speed variator
CN2237147Y (en) * 1995-10-19 1996-10-09 崔松竹 Planetary gear stepless speed reducing device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791047A (en) * 2014-02-25 2014-05-14 合肥工业大学 Variable transmission system for helicopter
CN103791047B (en) * 2014-02-25 2016-02-24 合肥工业大学 A kind of helicopter speed variable transmission system
CN105840756A (en) * 2016-05-17 2016-08-10 中北大学 Positive pressure adaptive planetary ring bevel gear power split continuously variable transmission
CN108105347A (en) * 2018-01-23 2018-06-01 张敏 Diameter type variable multi-gear is combined into equivalent gear-driven buncher
CN108105347B (en) * 2018-01-23 2023-05-30 张敏 Continuously variable transmission with variable diameter multi-gear combined into equivalent gear transmission
CN111765222A (en) * 2020-06-19 2020-10-13 熊一洲 CVT, CVT method and application
CN113236718A (en) * 2021-06-16 2021-08-10 上海中联重科桩工机械有限公司 Cutting speed reducer, cutting part and heading machine
CN115143251A (en) * 2022-07-22 2022-10-04 扬州大学 Large-span transmission ratio compound transmission continuously variable transmission
CN115143251B (en) * 2022-07-22 2024-10-18 扬州大学 A composite transmission continuously variable transmission with a large transmission ratio

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