CN2218853Y - Mechanical stepless speed regulator - Google Patents

Abstract

The utility model provides a mechanical stepless speed regulator which has the advantages of simple structure, easy fabrication, low cost, no need of a clutch and no need of shift. The utility model comprises a dynamic force input mechanism, a crank link mechanism, a rolling block slide bar mechanism, a one-way driving mechanism and a dynamic force output mechanism, and rotational speed can be made endlessly change only through adjusting the sliding position of the slide bar from zero to a certain value. The utility model can be used on motor vehicles or other many speed changing occasions according to specific circumstances with wide applicability.

Description

A kind of mechanical stepless arrangements for speed regulation

The utility model relates to mechanically operated speed adjusting technique field, and it can be used as motor vehicle transmission or other needs the mechanically operated arrangements for speed regulation of speed change.

Well-known mechanical governing device now has multiple sample, as gear-shift transmission, and torque converter, the arrangements for speed regulation that combine with electric, magnetic force etc. in addition.They can be applicable to various mechanically operated speed governing occasions.But these arrangements for speed regulation ubiquity complex structures, manufacturing technology require high, problems such as cost height, and what also have need be furnished with clutch exactly, wants gear shift during operation, can not form stepless speed regulation.

The purpose of this utility model provide a kind of simple in structure, easy to manufacture, with low cost, need not clutch, mechanical stepless arrangements for speed regulation that need not gear shift, it is applicable to speed change or other mechanically operated speed change occasion of motor vehicle transmission.

The technical solution of the utility model is such: it is made up of some groups of identical following mechanisms, every group comprises five kinds of mechanisms such as power input mechanism, connecting rod, swinging block sliding bar mechanism, one-way drive mechanism and power take-off mechanism, and the utility model is made of some groups of such mechanism's parallel connections.Main feature of the present utility model is to have adopted the swinging block sliding bar mechanism, and by regulating the slip locations of slide bar, the amplitude size that slide bar is waved constantly changes, thereby the rotating speed of power take-off mechanism is also constantly changed, and reaches infinite variable speed purpose.

Adopt above-mentioned structure (because said mechanism is all clear, so the structure explanation is omitted, specify and see drawings and Examples), the utility model is simple in structure, easy to manufacture, cost is low, easy to operate, because slewing range can be by " 0 to a certain value (this value is by the decision of number of teeth of slide bar length and back output mechanism middle gear; can satisfy according to specific requirement); therefore at all need not clutch; also at all need not gear shift, and just motive force can be exported after with stepless speed regulation is an invention that has much advantage really.

Be illustrated below in conjunction with drawings and Examples:

Fig. 1 for the utility model be applied in schematic representation on the Motor Vehicle (the one group of mechanism of only drawing among the figure, present embodiment is provided with three groups because in addition two groups just the same, do not draw so omit, in following explanation, set forth).

As shown in Figure 1, the utility model is made up of three groups of following mechanisms, and every group comprises power input mechanism (being that gear 3,2 constitutes), connecting rod 4, swinging block sliding bar mechanism (being swinging block 6, slide bar 5), one-way drive mechanism (drive chain 9, return spring 10, unidirectional interior mesh driving gear 11 and 12), these five parts of power take-off mechanism (gear 13, chain 14, gear 15).Power source is to produce (being that piston, connecting rod, crank mechanism 1 are produced) by former internal combustion engine of motor vehicle, be delivered in the connecting rod 4 through gear 2 and 3, an end that drives swinging block sliding bar mechanism, slide bar 5 links to each other with connecting rod, the other end links to each other with chain 9, slide bar is in the chute in the swinging block 6 can slippage, swinging block 6 rotates with axle 16 and cooperates, and regulates the slip locations that rope 7 just can be controlled slide bar arbitrarily by handgrip 8, makes it amplitude of oscillation size variation.Slide bar moves up and down two ends, promptly is the scope that its amplitude of oscillation slew rate changes, and can produce from the 0 slew rate excursion to a certain value.The speed that chain 9 drives unidirectional drive gears 11 also changes thereupon, is engaged in 11 and fixing with rotating shaft 17 in 12; Return spring 10 makes chain 9 returns, owing to be unidirectional drive, when so slide bar swings, only can drive the unidirectional drive wheel when a direction swing rotates, be idle running during the other direction swing, so just make the power output gear 13 that is fixed on the axle 17 drive, then also intermittently stressed rotation of the load driving wheel 15 that drives by chain 14 (symbolic signal) for unidirectional intermittent type.More than be that one pack system is analysed, because the utility model is three groups of above-mentioned same mechanism to be set come common in parallel the driving, need only be in connecting rod crank be designed to three places, and its phase difference all is decided to be 120 °, can make three cover mechanisms of this device drive power output wheel 13 in the rotating shaft 17 jointly so, and can reach output speed and be tending towards even.

This device can be designed to some groups and achieve the goal according to the concrete condition and the requirement of application.Its power input mechanism not only can be above-mentioned gear engagement mechanism in addition, also can be alternate manner (as mechanisms such as belt transmission chain transmissions), its power take-off mechanism not only can be chain output, also can be alternate manner (as mechanisms such as belt transmission or gear transmissions).In a word, can change as the case may be, reach the purpose of this utility model.

Claims (1)

1, a kind of mechanical stepless arrangements for speed regulation is characterized in that: it comprises some groups of identical following mechanisms, and every group includes power input mechanism, connecting rod, and swinging block sliding bar mechanism, one-way drive mechanism and power take-off mechanism, wherein:

1. power input mechanism is made of gear engagement mechanism (2,3), and this mechanism imports motive force;

2. connecting rod (4) is made of bent axle, connecting rod, and bent axle is driven by power input mechanism, and connecting rod links to each other with slide bar (5) one ends in the swinging block sliding bar mechanism, with transmission of power in the swinging block sliding bar mechanism;

3. the swinging block sliding bar mechanism is made of the slide bar (5) that is enclosed within the swinging block (6) on the supporting base axle (16) and is arranged in the swinging block chute, and swinging block is rotatable, the slide bar slip;

4. one-way drive mechanism comprises that an end links to each other with slide bar, the other end links to each other with a return spring (10) and fixing chain (9), be meshed with chain (9) and be fixed on unidirectional drive wheel in the rotating shaft (17), (comprising external gear 11 and inside engaged gear 12) constitutes;

5. power take-off mechanism comprises that the power output wheel (13), drive chain (14) and the load driving wheel (15) that are fixed in the rotating shaft (17) constitute, and this mechanism exports the power rotating speed after speed governing.