Drive mechanism for stepless transmission

FIELD: machine building.

SUBSTANCE: transmission with a variator includes an input shaft, an input disc installed on the input shaft for rotation together with it, and an output disc facing the input disc and made so that it can be rotated coaxially with it. Input and output discs restrict a toroidal cavity between each other. In toroidal cavity there are two rollers (14, 16), and the first and the second roller carrying devices are provided, on which the first and the second rollers are installed so that they can be rotated. An end loading device brings rollers in forced manner in contact with input and output discs for transfer of movement. Both roller carrying devices are installed on opposite sides of lever (50) turning axis, and lever (50) turning axis is movable both in radial and non-radial direction relative to the turning axis of input and output discs.

EFFECT: simplified design of the device.

14 cl, 3 dwg

 

The present invention relates to characterized by infinitely variable gear ratio transmission device of the traction type, with means for rolling along the toroidal path, hereinafter referred to as a variator.

The basic form of the variator includes an input disk with a toroidal groove connected with the input drive shaft and output drive with toroidal recess located coaxially relative to the input disk. In the toroidal cavity bounded between the input and output disks, a plurality of rollers (usually three roller), and through these rollers, the power is transmitted from the input disk to the output disk. The rollers mounted on the roller, which are exposed to shear forces (usually via hydraulic pistons double acting). The same hydraulic pressure is usually applied to the so-called end of the load chamber for the application of axial force to one of the disks to ensure that the rollers will be in frictional contact with the input and output disks.

Such transmissions are typically designed for use in applications involving relatively high power and high torque, for example in the gearboxes of cars. In fact, to be able to adjust the power levels Trocadero of time and provide a more balanced transmission, it is usually necessary to use a pair of input discs and a pair of coaxially installed output disks, limiting two toroidal cavities, each of which are three of the roller. One advantage of using three rollers in each toroidal cavity is that the layout of inherent stability, because the contact with the rollers in three places, equidistant from each other around the discs, minimizes the bending components of the variator, and therefore minimizes wear and tear. However, usually it is also necessary to provide for each video its own control piston double-acting, and to control hydraulic pressure PC.

If transmissions hire the cost of such complications is acceptable, it prevents the use of variable-speed drives in less demanding conditions.

Therefore, there is a need to create a simplified cheap variator for use in such important circumstances.

At the same time the international patent application PCT/ER/050860 described simplified cheap variator with two rollers in contact with the input disk of the variator and the output disk of the variator. Each roller is mounted on the corresponding raichoor connected with the opposite ends of the lever, the which is rotated in response to the input action of the operator. The axis of rotation of the lever is movable in a radial direction relative to the axis of rotation of the input and output disks.

In one specific arrangement described in the application PCT/ER/050860, a lever provided with a hinged finger, which is made with the possibility of displacement along the radial passing through the groove in the bracket, which is fixed with respect to the crankcase of the variator. Although this arrangement works very well, this type of transfer is usually designed for use in a cheap mechanism, and it is therefore desirable to simplify the design and, therefore, reduce the value.

In accordance with the present invention, the proposed transmission with a variator containing:

Carter;

input shaft;

the input disc mounted on the input shaft for rotation together with him;

the output disk, converted to the input disk and configured to rotate coaxially with him, and input and output disks limit between a toroidal cavity;

two rollers located in the toroidal cavity;

the first and second religioone means are respectively installed with the possibility of rotation of the first and second rollers;

end load means for forcing the rollers into contact with the input and output discs to transmit movement;

lever means having the s axis of rotation, both rolemapping means mounted on the lever means from opposite sides of the axis of rotation; and

rotary means for rotating the lever means about the axis of rotation;

thus the axis of rotation of the lever means movable in a radial direction relative to the axis of rotation of the input and output disks, and also has a motion component not in the radial direction.

Due to the presence of transmission with a variator having only two rollers, and control videos by using the lever means, not hydraulic, it becomes possible to reduce the complexity and cost of transmission, and the creation of a gearbox suitable for applications involving low power and low torque, as in the case of an application PCT/ER/050860. However, providing the axis of rotation of the lever that is moved in the radial and non radial directions, also provides a simplified and cost-reduced design of the control mechanism of the variable.

In a preferred embodiment, the rotary tool includes an elongated slot in the lever means, enter into engagement with the protrusion, which is fixed with respect to the crankcase. The presence of the notches in the lever, which is engaged with the protrusion, which is fixed with respect to the crankcase, simplifies the design of the gearbox and, therefore, lower the t value.

The protrusion preferably includes pivot pin, fixed with respect to the crankcase, in which the hinge unit installed RAM, and this block of the slide was put into engagement with the notch in the lever means. The width of the block RAM is preferably the same as the width of the notches. In a preferred embodiment, the axis of rotation can be moved by a specified distance.

The turning tool to rotate the lever means preferably includes a shoulder part.

In a preferred embodiment, between each religionem means and lever means provided by hinge means (e.g., ball bearing).

In a preferred embodiment, the input shaft and the output drive motion to the inputs of the mixing planetary gear, which is preferably coaxial with respect to the input shaft.

You can also provide gear means connected to the output of the mixing planetary gears.

In the preferred embodiment, end load means includes elastically deformable means. In the preferred embodiment, end load, the tool contains only the elastically deformable means.

Elastically deformable means preferably extends between the transmission housing and one of the input and output is tion disk.

Elastically deformable means preferably includes a spring, such as Belleville spring.

Now, in the example given with reference to the accompanying drawings, will be described particular implementation of the present invention, in which:

figure 1 shows a longitudinal section through the structure, representing a variant of implementation of the transmission with a variator in accordance with the present invention;

figure 2 presents a schematic representation of a transmission according to figure 1; and

figure 3 shows a front view in cross section of a transmission according to figure 1, viewed in the direction of the arrows III-III and illustrating a management tool rollers.

System transmission with infinitely variable gear ratio contains the variator V, with Carter H, surrounding the input disk 10 with a toroidal groove and addressed to him the output disk 12 with a toroidal groove. In the toroidal cavity bounded between opposite toroidal machined surfaces of the input and output disks 10 and 12, mounted two rollers 14, 16 for the transmission of motion from the input disk 10 to the output disk 12 with a gear ratio that varies due to the inclination of the rollers 14, 16.

The input disk 10 is connected with the input shaft 18 of the system and rotates in the natural with him. The variator V provides access through the tubular output shaft 20, which is connected with the output disk 12 and is coaxial with the input shaft 18 and around it. Input shaft 18 and output shaft 20 of the variator provide inputs in a combination of the mixing planetary gear E1. As schematically shown in the drawing, the end of the output shaft of the variator 20, remote from the output disc 12 carries a first sun gear S1 of the mixing planetary gear E1. Drove C1 gears E1 is connected with the input shaft 18 and provides them in motion. Drove C1 carries four identical equally-spaced radially inner satellites P1 and four identical equally-spaced radially external satellite P2 (not visible in figure 1) the same size as the radially inner satellites P1. Radially outer satellites P2 also introduced in engagement with the annular crown A1 having internal teeth, which forms the output of the mixing planetary gear E1. The output of the ring crown A1 is connected via a coaxial tubular output shaft 22 with a simple planetary gear E2. Planetary gear E2 contains the input sun gear S2, carried by the shaft 22, which is inserted into engagement with the four spaced at equal angles satellites P3, carried by the planet carrier C2. The satellites is 3 also introduced in engagement with the annular crown A2, attached to the transmission housing. The rotation of the carrier C2 forms the output of the planetary gear E2 and transmitted out the output shaft 24, which is connected to the planet carrier C2. The output shaft 24 coaxial with the input shaft 18, one end of which is enclosed in the recess 26 in the inner end of output shaft 24.

The gear train described above and coupled with the output shaft 20, is just one example of the timing mechanism that can be used. You can use other sets of tools gear mechanism depending on the requirements and intended use of the transmission.

Transmission is enclosed in a casing 30, which is basically a tube, which serves to support the input and output shafts 18, 20. The end of the crankcase 30, adjacent the input shaft 18, muffled through the end cap 32. Between the inner face of the end cap 32 and the annular bearing plate 36, which is in rolling contact with the outer flat face of the input disk 10 variator, extending conical disc spring 32. Disc spring applies force ("end load") to the input disk 10 and allows the transfer of torque from the input disk 10 through the rollers 14, 16 to the output disk 12.

Tilt both rollers 14, 16 (as will be discussed below), you can adjust the speed of the output di is SC 12 relative to the input disk 10. Combining the speed of the input transmission and the output of the variator in the mixing planetary gear E1, you can change the output of the transmission. In the depicted arrangement, the state of the transmission can be changed from the corresponding motion status of the maximum speed in reverse through neutral condition of the timing mechanism to the appropriate maximum speed of the forward stroke. However, by proper selection of the timing mechanism, it is possible to adapt the operating range of the variator to the requirements. For example, the variator can be made with the possibility of transition between low speed reverse through neutral condition of the timing mechanism and the condition improves transmission for moving forward with high speed, if the vehicle on which you have installed transmission, usually operated using transmission, providing forward movement, and only sometimes operated on the rear of the fly.

The mechanism for changing the inclination of both of the rollers 14, 16 details shown in figure 3. Each roller 14, 16 is mounted for rotation on raichoor 40 by means of trunnion 42 which is mounted for rotation in opposite flat bearing plates 44, 46 of the roller (figure 3 shows only one of raichoor 40, but the other it is identical. One end of each roller 40 is connected with a corresponding one of two ends of the cross member 48 of the control lever 50 by means of ball bearings 52 (for example, "support Rose", manufactured by the firm Rose Bearing Limited). The control lever 50 is provided with a groove 54 in the middle between the center points of ball bearings 52 and perpendicular to the cross member 48 of the lever. In the groove 54 is enclosed ledge in the form of an elongated premastering block 56 of the slide of the same width as the width of the groove 54. Block 54 of the slide pivotally mounted on the pivot pin 58, which is mounted stationary relative to the crankcase of the variable.

The lever 50 is supplied with actuating shoulder 60, which protrudes from the crankcase of the variable in the direction perpendicular to the line connecting the Central points of the two ball bearings 52 (i.e. perpendicular to the axis of the cross member 48 of the lever). The end of the arm 60, which protrudes from the crankcase of the variator provided with a hole 62 for connection of two Bowden cables (not shown) or other parts of a direct mechanical connection to rotate the lever in opposite directions. This connection is a direct connection mechanical connection from the person operating the equipment, part of which is transmission. For example, the shoulder 60 may be connected to the gas pedal of the vehicle or pedal forward and one reverse gears.

When the lever 50 is rotated, one of the rollers 10, 12 is pushing impact and traction, both with the same torque. The presence of the groove 54 in the lever 50 which is slidable on the block of the RAM pivotally mounted on the pivot pin, fixed with respect to the crankcase, provides a balanced system, because the movement of the rollers in the groove guides the rollers in a position in which the torque transmitted by one of them decreases, the torque transmitted by one of them increases. Thus, there is regulation of the forces of reaction and the direction of their contributing balancing, and therefore the correct orientation. This is important in cheap nodes, where the manufacturer of the components, probably tolerate less accuracy. Radial movement of the hinged finger lever to enable movement of the lever in the position in which the imbalance between the two rollers, resulting from technological differences in the manufacture, will be excluded.

The described device also provides a small transverse (i.e., not radial) component of the movement of the lever, making fabrication easier, and therefore cheaper, than in the case of the device described in the application PCT/ER/050860.

1. Transmission with a variator, comprising:
Carter;
input shaft;
the input disk, the mouth of blenny on the input shaft for rotation together therewith;
the output disk, converted to the input disk and configured to rotate coaxially with him, and input and output disks limit between a toroidal cavity;
two rollers located in the toroidal cavity;
the first and second religioone means are respectively installed with the possibility of rotation of the first and second rollers;
end load means for forcing the rollers into contact with the input and output discs to transmit motion;
lever means rotatable about an axis of rotation, both rolemapping means mounted on the lever means from opposite sides of the axis of rotation; and
swivel means for mounting the lever means can be rotated around the axis of rotation, and the rotary tool includes an elongated slot in the lever means, enter into engagement with the tab that contains the pivot pin, fixed with respect to the crankcase, in which the hinge unit installed RAM, and this block of the slide was put into engagement with the notch in the lever means so that the lever means is movable in a radial direction relative to the axis of rotation of the input and output disks, and also has a motion component in neradilek direction.

2. Transmission with a variator according to claim 1, in which the width of the block is Asuna is essentially the same as the width of the notch.

3. Transmission with a variator according to claim 1, in which the notch in the lever means is a groove.

4. Transmission with a variator according to any one of claims 1 to 3, in which the axis of rotation of the lever means can be moved by a specified distance.

5. Transmission with a variator according to any one of claims 1 to 3, in which the turning tool to rotate the lever means includes a shoulder part.

6. Transmission with a variator according to any one of claims 1 to 3, additionally containing the hinge means between each religionem means and lever means.

7. Transmission with a variator according to any one of claims 1 to 3, in which the hinge means includes a ball bearing.

8. Transmission with a variator according to any one of claims 1 to 3, in which the input shaft and the output drive form the inputs of the mixing planetary gears.

9. Transmission with a variator of claim 8, in which the mixing planetary gear train is located coaxially relative to the input shaft.

10. Transmission with a variator according to any one of claims 1 to 3, further containing a gear means connected to the output of the mixing planetary gears.

11. Transmission with a variator according to any one of claims 1 to 3, in which the limit load tool contains progtesterone tool./p>

12. Transmission with a variator according to claim 11, in which the limit load tool contains only progtesterone tool.

13. Transmission with a variator according to any one of claims 1 to 3, in which the limit load tool contains progtesterone means extending between the transmission housing and one of the input and output disks.

14. Transmission with a variator according to item 13, in which progtesterone means includes a spring.



 

Same patents:

Variator // 2479767

FIELD: machine building.

SUBSTANCE: variator includes raceways, the first and the second rollers (199a, 199b), each of which is installed with possibility of being rotated in the corresponding holder (118a, 118b), roller control element that allows it to perform rotation about the rotational axis and translational movement. Variator also includes a damper that dampens translational movement of the control element.

EFFECT: enhanced reliability.

12 cl, 10 dwg

FIELD: motor car construction.

SUBSTANCE: transmission comprises variator 10 and throw-over gear including step-down clutch CL and step-up clutch CH. Throwing in step-down clutch to set transmission to step-down conditions. Throwing in step-up clutch moves transmission to step-up conditions. Control system comprises control part (for example, handle) to be displaced by driver along control path from low gear ratio end to high gear ratio end. Besides, said system comprises set-down clutch control device to throw in step-down clutch when control device is located between low gear end and transitional point of step-down clutch and to throw out step-down clutch when said control device is located between said transitional point of step-down clutch and high gear end. Besides, said system comprises set-up clutch control device to throw out step-up clutch when control device is located between down clutch when said control device is located between said transitional point of step-up clutch and high gear end.

EFFECT: simplified variator control device.

15 cl, 8 dwg

FIELD: transport.

SUBSTANCE: invention discloses planetary variator, combination of reverse variable transmission system comprising these planetary variators, hydraulic system for reverse variable transmission control and method for this hydraulic system regulation.

EFFECT: higher engine efficiency due to lower specific fuel consumption.

12 cl, 13 dwg

FIELD: machine building.

SUBSTANCE: device consists of control part actuated by user for control of ratio (lever (50) and of device of working connection (rollers (18) of control part for regulation of ratio with movable part for transfer of variator torque. The connecting device corresponds to a hydro-mechanical arrangement. When a user actuates control part (50) for regulation of ratio there is regulated ratio of variator. The device also has the appliance for turning torque off (valve (60) actuated by a user for disconnection of the part for regulation of the ratio from the movable part for transfer of torque.

EFFECT: simplification of design.

17 cl, 3 dwg

Variator // 2413888

FIELD: machine building.

SUBSTANCE: variator consists of two races made for rotation around common axis. Opposite profiled surfaces of races restrict circular space containing at least one roller (38) transferring driving force between races. The roller is installed on the carrier (42) so, that its incline to common axis can vary to facilitate changes of variator ratio. The rollers and their carriers are controlled by means of a mechanism consisting of solar (46) and circular (50) gears interacting with the carrier. Relative rotation of the solar and circular gears causes an incline of carrier (42) so, that rollers turn to a new incline. There is disclosed satellite (100) controlling solar and circular gears and interacting with both. Rotary position of the carrier is controlled independently from its interaction with solar and circular gears.

EFFECT: improved control of rollers orientation.

16 cl, 11 dwg

FIELD: machine building.

SUBSTANCE: variator transmission consists of input shaft (18), input disk (10) installed on input shaft and rotating with it and output disk (12) facing input disk and coaxially rotating with it. Input and output disks (10, 12) form a toroid cavity between them. In the toroid cavity there are positioned only two rollers; also the first and the second rotating rollers are arranged on the first and the second roller carriages. Facility (34, 36) of end load holds rollers down to contact with the input and output disks for motion transfer. Two roller carriages are mounted on opposite sides from the axis of lever pivot. Pivot axis of the lever travels in one, preset radial direction relative to rotation axis of input and output disks.

EFFECT: simplified and inexpensive variator.

27 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: invention relates to rolling variator, particularly to control mechanism by roller orientation. Device of infinitely variable control of reduction ratio (variator) contains couple of rotating rolling path, installed for rotation around its common axis (218) of variator. Drive force is passed from one rolling path to the other by means of at least one roll (200), running by it. Connection between roll (200) and its carrier (214) provides roller precession relative to around axis (228) of precession, where it is defined relative to axis of precession and non-parallel to roller axis. Precession leads to changing of angle between axis (222) of roller and axis (218) of variator and corresponding to changing of reduction ratio. Carrier itself allows toothing (206), by means of which it is engaged with central tooth gear (212) and gear rim (214). Rotation of carrier (204) around axis of carrier serves to changing of axle orientation (228) of precession and accompanied by changing of reduction ratio of variator.

EFFECT: invention provides by means of control of displacement of carrier to change reduction ratio of variator.

16 cl, 21 dwg

FIELD: machine building.

SUBSTANCE: invention relates to device for changing of transmission ratio, particularly to gears with rolling engagement in toroidal track. Variator contains input disk (18, 20), installed rotary; output disk (22), installed rotary co-axial with input disk (18, 20); rollers (30, 32), by means of which it is passed rotation between input disk and output disk; pistons (36, 38) of double-acting, each of which interacts on corresponding one of rollers. Variator also contains levers (44, 60), each of which is connected to corresponding one of rollers (30, 32) and connected to it positioner (36, 38), influencing on roller for control of transmission ratio of variator.

EFFECT: creation of considerabl more packaged design of variator.

40 cl, 9 dwg

FIELD: machine building.

SUBSTANCE: variable-speed drive unit comprises master and slave toroidal wheels (2, 3) and roller (6). Their generatrices are made in the form of convex and concave curved surfaces. Due to arrangement of generatrices of working surfaces in master and slave elements in accordance with a certain dependence, area of friction pairs contact is increased.

EFFECT: improved kinematic characteristics of variable-speed drive unit.

3 dwg, 1 tbl

FIELD: machine engineering, namely variable speed drives with continuously changing relation of revolution number of driven and driving shafts.

SUBSTANCE: friction tore ring type variable speed drive includes driving and driven discs made of set of rings 2, 3 forming together toroidal surface and joined with driving and driven shafts 1, 4 through tie rods 12, 16 at spring-loaded gap outside aid tie rods. Rings 2, 3 may move one relative to other and relative to driving and driven shafts along splines in parallel to main axis of variable speed drive. Ball 10 is used as frictional intermediate member between them; said ball transmits rotation of rings of driving disc to rings of driven disc and it rotates in holder 5 in direction set by means of rings and around main axis of variable speed drive. Actuating mechanism successively forces mutually opposite rings of driving and driven discs for providing their friction contact. Monitoring and control mechanism includes control gear wheel 8 working in pair with ring-like gear wheel 7 secured to holder 5; flat coiled spring whose one end is joined with housing and whose other end is joined with holder 5 or with control gear wheel 8.

EFFECT: improved design, simplified process for monitoring and controlling gear ratio.

5 cl, 7 dwg

FIELD: mechanical engineering.

SUBSTANCE: friction toroidal variator comprises inlet disk (2) and outlet disk (3) provided with toroidal surfaces, friction roller (5), spider whose one axle is provided with roller (5), holder (8) of friction roller, control mechanism, and mechanism for control of gear ratio. The second axle of the spider is fit in holder (8) of the friction roller that can rotate around the main axle of the variator. The control mechanism and mechanism for control of gear ration are made of gear sector (9) that rotates on the second axle of the spider secured to the first axle of the spider and housing (12) by means of worm gearing and spring (15) secured in housing (12) and connected with holder (8) directly or through the reduction gear.

EFFECT: simplified control and control of gear ratio.

8 dwg

FIELD: mechanical engineering.

SUBSTANCE: device comprises casing (160) mounted in the vicinity of roller (100) and pipeline for supplying fluid. Peripheral section (162) of the inner side of casing (160) is positioned close to the outer periphery of the roller. Two radial sections of the inner side are in the vicinity of appropriate side surfaces of roller (100). As a result, a chamber for supplying fluid is formed between roller (100) and casing (160). The pipeline for supplying fluid is mounted for permitting supply of fluid to the chamber for receiving fluid.

EFFECT: enhanced reliability.

14 cl, 10 dwg

FIELD: machine engineering, namely variable speed drives with continuously changing relation of revolution number of driven and driving shafts.

SUBSTANCE: friction tore ring type variable speed drive includes driving and driven discs made of set of rings 2, 3 forming together toroidal surface and joined with driving and driven shafts 1, 4 through tie rods 12, 16 at spring-loaded gap outside aid tie rods. Rings 2, 3 may move one relative to other and relative to driving and driven shafts along splines in parallel to main axis of variable speed drive. Ball 10 is used as frictional intermediate member between them; said ball transmits rotation of rings of driving disc to rings of driven disc and it rotates in holder 5 in direction set by means of rings and around main axis of variable speed drive. Actuating mechanism successively forces mutually opposite rings of driving and driven discs for providing their friction contact. Monitoring and control mechanism includes control gear wheel 8 working in pair with ring-like gear wheel 7 secured to holder 5; flat coiled spring whose one end is joined with housing and whose other end is joined with holder 5 or with control gear wheel 8.

EFFECT: improved design, simplified process for monitoring and controlling gear ratio.

5 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: variable-speed drive unit comprises master and slave toroidal wheels (2, 3) and roller (6). Their generatrices are made in the form of convex and concave curved surfaces. Due to arrangement of generatrices of working surfaces in master and slave elements in accordance with a certain dependence, area of friction pairs contact is increased.

EFFECT: improved kinematic characteristics of variable-speed drive unit.

3 dwg, 1 tbl

FIELD: machine building.

SUBSTANCE: invention relates to device for changing of transmission ratio, particularly to gears with rolling engagement in toroidal track. Variator contains input disk (18, 20), installed rotary; output disk (22), installed rotary co-axial with input disk (18, 20); rollers (30, 32), by means of which it is passed rotation between input disk and output disk; pistons (36, 38) of double-acting, each of which interacts on corresponding one of rollers. Variator also contains levers (44, 60), each of which is connected to corresponding one of rollers (30, 32) and connected to it positioner (36, 38), influencing on roller for control of transmission ratio of variator.

EFFECT: creation of considerabl more packaged design of variator.

40 cl, 9 dwg

FIELD: machine building.

SUBSTANCE: invention relates to rolling variator, particularly to control mechanism by roller orientation. Device of infinitely variable control of reduction ratio (variator) contains couple of rotating rolling path, installed for rotation around its common axis (218) of variator. Drive force is passed from one rolling path to the other by means of at least one roll (200), running by it. Connection between roll (200) and its carrier (214) provides roller precession relative to around axis (228) of precession, where it is defined relative to axis of precession and non-parallel to roller axis. Precession leads to changing of angle between axis (222) of roller and axis (218) of variator and corresponding to changing of reduction ratio. Carrier itself allows toothing (206), by means of which it is engaged with central tooth gear (212) and gear rim (214). Rotation of carrier (204) around axis of carrier serves to changing of axle orientation (228) of precession and accompanied by changing of reduction ratio of variator.

EFFECT: invention provides by means of control of displacement of carrier to change reduction ratio of variator.

16 cl, 21 dwg

FIELD: machine building.

SUBSTANCE: variator transmission consists of input shaft (18), input disk (10) installed on input shaft and rotating with it and output disk (12) facing input disk and coaxially rotating with it. Input and output disks (10, 12) form a toroid cavity between them. In the toroid cavity there are positioned only two rollers; also the first and the second rotating rollers are arranged on the first and the second roller carriages. Facility (34, 36) of end load holds rollers down to contact with the input and output disks for motion transfer. Two roller carriages are mounted on opposite sides from the axis of lever pivot. Pivot axis of the lever travels in one, preset radial direction relative to rotation axis of input and output disks.

EFFECT: simplified and inexpensive variator.

27 cl, 3 dwg

Variator // 2413888

FIELD: machine building.

SUBSTANCE: variator consists of two races made for rotation around common axis. Opposite profiled surfaces of races restrict circular space containing at least one roller (38) transferring driving force between races. The roller is installed on the carrier (42) so, that its incline to common axis can vary to facilitate changes of variator ratio. The rollers and their carriers are controlled by means of a mechanism consisting of solar (46) and circular (50) gears interacting with the carrier. Relative rotation of the solar and circular gears causes an incline of carrier (42) so, that rollers turn to a new incline. There is disclosed satellite (100) controlling solar and circular gears and interacting with both. Rotary position of the carrier is controlled independently from its interaction with solar and circular gears.

EFFECT: improved control of rollers orientation.

16 cl, 11 dwg

FIELD: machine building.

SUBSTANCE: device consists of control part actuated by user for control of ratio (lever (50) and of device of working connection (rollers (18) of control part for regulation of ratio with movable part for transfer of variator torque. The connecting device corresponds to a hydro-mechanical arrangement. When a user actuates control part (50) for regulation of ratio there is regulated ratio of variator. The device also has the appliance for turning torque off (valve (60) actuated by a user for disconnection of the part for regulation of the ratio from the movable part for transfer of torque.

EFFECT: simplification of design.

17 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention discloses planetary variator, combination of reverse variable transmission system comprising these planetary variators, hydraulic system for reverse variable transmission control and method for this hydraulic system regulation.

EFFECT: higher engine efficiency due to lower specific fuel consumption.

12 cl, 13 dwg

Up!