CN1255962A

CN1255962A - Transmission system

Info

Publication number: CN1255962A
Application number: CN 99800089
Authority: CN
Inventors: 马努索斯·帕塔科斯; 约翰·帕塔科斯; 埃马努伊尔·帕塔科斯
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-30
Filing date: 1999-01-28
Publication date: 2000-06-07
Anticipated expiration: 2019-01-28
Also published as: WO1999039116A1; CN1141502C; GR980100044A; EP0995057A1; JP2001520732A

Abstract

The rotary motion of an input shaft is firstly altered into a controllable rotational oscillation of an intermediate member and subsequently, by means of an overrunning clutch mechanism, this oscillation is transformed into one way impulses towards output shafts which drive the loads. The connecting mechanism between the input shaft and the intermediate member controls, according to its condition, the amplitude of the angular oscillation of the intermediate member within a minimun/maximum, defining the transmission ratio. Inherent drawbacks like the strong impact loads are eliminated as long as the output shafts drive the loads through proper elastic connections while additional overrunning clutches, secured to the casing, prevent the reverse motion of the output shafts.

Description

Transmission system

Press the present art, according to patent PCT/JP92/00719, JP60125454, US4109539, DE3226245, US4109539, DE2752937, DE1122350 and FR125297, input shaft rotatablely moves and at first becomes the controlled rotary oscillation of an intermediate member, and utilize an overrunning cluth mechanism then, this swing is converted into the unidirectional pulsation of an output shaft that can be used for driving load.Bindiny mechanism between input shaft and the intermediate member is according to the amplitude of oscillation of its state at the angle swinging of minimum/maximum value inner control intermediate member, and the decision velocity ratio.Yet, being fixed on when overrunning cluth on the shell can prevent the output shaft reverse rotation at another, output shaft can not be to connect rigidly but by suitable elasticity to drive load.Therefore can obtain the transmission system of a continuously variable of comparing, having the remarkable dynamic characteristic of having improved that may reach with any the present art.

Fig. 1 and 2 shows a bent axle 5 with crankpin 6 of adjustable eccentric distance.Rotatablely moving of bent axle 5 passes to the middle swinging member 15 that drives output shaft 16 by means of overrunning cluth 48 by connecting rod 44.

Fig. 3 shows that is rigidly fixed to a flywheel 45 on the output shaft 16, that be equivalent to inertia load.

Fig. 4 simplifies whole transmission system assemblies that in fact demonstration is in the present art.Flywheel is suitable for the inertia of working machine, and break is suitable for the various brakings in the working machine motion.An input shaft is arranged, have a rotation to convert the adjustable connection mechanism of the rotary oscillation of the variable amplitude of oscillation of intermediate member to, also have the overrunning cluth between swing element and output shaft input shaft.The throw of eccentric of the crankpin 6 by adjusting input shaft 5 changes velocity ratio.

There are several methods that meet the present art to realize the system of this continuous transformation velocity ratio, but all must comprise input shaft, connection regulating mechanism, middle swinging member, overrunning cluth and output shaft as the fundamental composition thing, even if remodeling.The device of Fig. 4, all components of a kind of like this transmission system of demonstration.

Fig. 5 shows that flywheel 45 flexibly is connected with output shaft 16.Also be presented at an additional overrunning cluth between shell and the output shaft.

Fig. 6 simplifies the general assembly that is shown in the transmission system that Fig. 4 retrofits according to the present invention.Herein, driven device flexibly is clipped between shell 23 and the output shaft 16 to prevent the reverse rotation of output shaft with the overrunning cluth 49 that output shaft 16 is connected and additional.

The angular velocity and the time lag that the mechanism of Fig. 7 to 12 signal displayed map 1 to 6 is meshed.

Bent axle 5 among Fig. 1 and Fig. 2 is with speed omega ₀Rotation, the function as the time is shown in Fig. 7 to 12.Crankpin 6 has an adjustable eccentric distance, is smaller value in the example of Fig. 2.Connecting rod 44 is connected the pin 14 of intermediate member 15 with crankpin 6.The swing of the adjustable amplitude of oscillation △ that the rotatablely moving of bent axle 5 is converted into intermediate member 15.The instantaneous velocity of intermediate member 15 is ω in Fig. 1 ₁And be ω in Fig. 2 ₁', be shown in Fig. 7 and 8.Roller 26 and spring 28 constitute an overrunning cluth 48 between intermediate member 15 and output shaft 16.Be shown in the output shaft 16 that Fig. 3 also is shown in Fig. 1 and 2, fixing by means of rigid member 47 with the driven device 45 that is shown flywheel, so the instantaneous angular velocity of output shaft 16 and driven device 45 is ω ₂The break 50 that is shown in Fig. 4 produces the resistance of driven device.Among Fig. 9, the resulting angular velocity omega of the load 45 of axle 16 and Fig. 3 ₂Draw with solid line.T is a rotational time of bent axle 5.During each rotation of bent axle 5, to the only lasting very little time lag △ τ of the energy transfer of output shaft 16 and load 45.This is because during input shaft once rotated, driven device only lost its extremely small spot speed.The result is intense impact load, noise, vibration, excessive wear and the poor efficiency of long arc.The mean value of ω 2 is only than a little bit smaller point of the maximum angular rate of intermediate member 15.After each energy pulse, angular velocity omega ₂The slight decline owing to various resistances is till next pulse.Velocity ratio is actually the ratio of the maximum angular rate of intermediate member 15 with the mean angular velocity of input shaft.This ratio changes according to the throw of eccentric of crankpin 6, and as shown in Figure 2, crankpin 6 transforms to the spin axis of more close bent axle 5, then △ '＜△ .The position of conversion crankpin 6 just is enough to change velocity ratio.

In Fig. 5 and 6, driven device 45 flexibly is connected with output shaft 16 by some flat helical springs 45, and an additional overrunning cluth 49 that is made of roller 25 and spring 29 then is clipped between axle 16 and the set casing 23.In Fig. 5, the instantaneous angular velocity ω of axle 16 _2a, driven device 45 be ω ₃, with ω _2aDifferent.Among Figure 11, the angular velocity omega of Fig. 5 and 6 output shaft 16 _2aDraw with solid line, and driven device 45 resulting angular velocity omegas ₃Draw with dot and dash line.Additional overrunning cluth prevents the reverse rotation of output shaft 16.T _aBe the bent axle 5 revolutions time lag once, intermediate member 15 and output shaft 16 engagements therebetween, energy therefrom transmits.This T _aApproximately be the half the time of period T, therefore have time enough that energy is passed to output shaft 16 from bent axle 5.And energy passes to load all the time.This is because at the input shaft T of 5 revolution cycle periods _aIn the time lag, Flexible Connector 46 is stored energy and pass to load substantially continuously all.Load no longer includes impact.The swing amplitude of oscillation △ that velocity ratio is actually intermediate member 15 once rotates necessary 360 ratios of spending with input shaft 5.

Foregoing description has been understood fully operating principle, inertia load, resulting velocity ratio and can have been flowed and all be fundamentally different than every original technology, has been the result of add-on assemble.

Fig. 8,10 and 12 is corresponding displayed map 7,9 and 11 respectively, but pin 6 small eccentricity situations as shown in Figure 2.

If one second input shaft is driven by middle swinging member by an additional overrunning cluth and the sub-fraction of load by the flexible driving of above-mentioned second output shaft, and another overrunning cluth between the shell and second output shaft prevents the second output shaft reverse rotation, and transmission system is also finished the work to the adjustable differential supply Maximum Torque of portion more at a slow speed of load.

Claims

1. transmission system comprises:

A shell;

An input shaft;

An output shaft;

The intermediate member of a rotary oscillation;

An adjustable connection mechanism is connected above-mentioned input shaft and rotatablely moving of above-mentioned input shaft converted to above-mentioned rotary oscillation intermediate member the rotary oscillation of the above-mentioned rotary oscillation intermediate member variable-angle amplitude of oscillation;

Overrunning cluth between above-mentioned rotary oscillation intermediate member and above-mentioned output shaft;

It is characterized in that above-mentioned output shaft connects the driving load by elasticity, and the additional overrunning cluth between above-mentioned output shaft and above-mentioned shell is controlled the transmission direction that above-mentioned elasticity connects,

Therefore, be delivered to load to the power stable and continuous, raise the efficiency and eliminated impact load, noise and wearing and tearing.

2. according to the transmission system of claim 1, it is characterized in that, one second output shaft is arranged, drive by an additional overrunning cluth that is sandwiched between them by above-mentioned rotary oscillation intermediate member, above-mentioned second output shaft connects the load of driving sub-fraction by elasticity, and an additional overrunning cluth between above-mentioned shell and above-mentioned second output shaft prevents the above-mentioned second output shaft reverse rotation, finishes controlled differential work thus.

3. according to the transmission system of claim 1, it is characterized in that, select adjustable intermediary agency, improve the device population equilibrium according to its quality and their distribution.