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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CN
China
Prior art keywords
bevel gear
planet
power
ring
ring bevel
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Granted
Application number
CN201310531303.1A
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Chinese (zh)
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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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Priority to CN201310531303.1A priority Critical patent/CN103591231B/en
Publication of CN103591231A publication Critical patent/CN103591231A/en
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Publication of CN103591231B publication Critical patent/CN103591231B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/76Toothed 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/023Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/08General details of gearing of gearings with members having orbital motion

Abstract

The invention provides a power splitting planetary ring bevel gear type stepless speed changer. A planetary ring bevel gear type stepless speed changer and a differential gear train are combined. A small part of power is transmitted through rotation and revolution of planetary ring bevel gears and the differential gear train, most of power is transmitted through a power input shaft and a planetary carrier, and the two parts of power are synthesized on synchronous planetary gears and then transmitted to an output shaft, so that power splitting is finished. Stepless speed changing drive is achieved through changing the contact radius of the speed regulation rings and the planetary ring bevel gears. The power splitting planetary ring bevel gear type stepless speed changer has the advantages of being stable in drive, good in starting performance, capable of being stably started from zero under full loads and adapted to work of variable working conditions, long in service life and wide in speed changing range. In comparison with an existing planetary type stepless speed changer, the power splitting can be achieved, meanwhile, power reflowing is avoided, high power transmission is achieved, geometrical slipping is reduced to the minimum, and transmission efficiency is higher.

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; , 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 , 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:
Wherein, = , the velocity ratio that represents respectively driven center bevel gear 8 and active center bevel gear 6, all represent the number of teeth, its subscript represents corresponding gear; , 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:
Wherein, all subscripts represent with respect to it, such as 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. 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.
2. power dividing planet ring bevel gear type stepless speed variator according to claim 1, it is characterized in that: 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.
3. power dividing planet ring bevel gear type stepless speed variator according to claim 1, is characterized in that: between described synchronous cylindrical gears and described center inside engaged gear, access a fixed axis gear.
4. power dividing planet ring bevel gear type stepless speed variator according to claim 1, is characterized in that: the synchronous planetary pinion that is connected on described planetary pinion, described synchronous planetary pinion and the engagement of output center wheel.
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 (2)

* 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 self-adaptive power split type continuously variable transmission of planetary ring bevel gear

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

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

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 (3)

* 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 self-adaptive power split type continuously variable transmission of planetary ring bevel gear

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Granted publication date: 20151125

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