Drive mechanism for continuously variable transmission
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
The present invention relates to a device infinitely variable transmission of the type traction roller of a toroidal surface, referred to hereinafter as the 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 a toroidal groove made coaxially relative to the input disk. Many videos (usually three roller) is provided in the toroidal cavity formed between the input and output disks and the power is transmitted from the input disk to the output disk via rollers. Rollers fixed in the roller, which are exposed to shear forces (usually by means of a hydraulic piston double-acting). The same hydraulic pressure is usually applied to the so-called chamber of mechanical load for applying axial force to one of the disks, to ensure adhesion of the rollers due to friction with the input and output disks.
Such transmission is mainly intended for use in applications with relatively large capacity, high torques, such as gearboxes of vehicles. Indeed, to allow manipulation of the levels of power and torque and to provide a more SIMM is tricou transmission, it is usually necessary to use a pair of input discs and a pair of coaxially installed output disks forming two toroidal cavities, each of which contains three rollers. One advantage of using three rollers in each toroidal cavity is that such execution is inherently stable in rolling contact at three equally spaced positions around the disk, minimizes the bending components of the variator and, therefore, minimizes wear. However, it is usually also necessary each roller to supply its own control piston double-acting, hydraulic pressure control using a computer.
Although the cost of such complications is acceptable in gearboxes of cars, this precludes the use of variable-speed drives in equipments with lower requirements.
Thus there is a need to create a quick, cheap variator for use in conditions that do not have such requirements.
According to the present invention provide variation transmission containing:
the input disc mounted on the input shaft for rotation together with him;
the output disk facing the input disc and made with the possibility of a coaxial rotation with him, moreover, the input and output disks form a toroidal cavity between them;
two rollers arranged in a toroidal cavity;
first and second means idlers are installed, respectively, the first and second rollers rotatably;
the tool end of the load for pressing the rollers into contact with the input and output discs to transmit movement;
lever means having an axis of rotation, two means of idlers mounted on the lever on opposite sides of the axis of rotation; and
turning means for turning the lever means about the axis of rotation;
in which the axis of rotation of the lever is arranged to move in a radial direction relative to the axis of rotation of the input and output disks.
By providing a variation of the gearbox, with only two rollers, and the control of the rollers with the lever means instead of hydraulic control, you can reduce the complexity and cost of transmission, and to provide a transmission which is suitable for relatively low power applications with a small torque. However, the radial displacement of the axis of rotation of the lever means enables movement of the lever means in a position in which the forces on the rollers matched.
Preferably, the axis of rotation of the lever is fixed in the direction perpendicular by mentioning the fact the radial direction, i.e. moving the axis of rotation limited to the mentioned radial direction.
Lever means, preferably, includes pivot pin, which is made with the possibility of displacement along the slot, which is mentioned in the radial direction. Preferably, the diameter of hinge finger, essentially, is the same as the width of the slot through which the pivot pin is retarded when moving in the longitudinal direction of the slot. Preferably, the axis of rotation is arranged to move a given distance in said radial direction.
Preferably, the hinge means for turning the lever means contains a plot of the shoulder.
Preferably, the hinge means (for example, ball joint) is provided between each means of the roller and lever means.
Preferably, the input shaft and the output disk drive inputs mixed epicycle gear, which is preferably coaxial with respect to the input shaft.
Also means reducing gear may be attached to the exit of the mixed epicycle gear.
Preferably, the tool end load contains elastically deformable means. Preferably, the tool end load contains only elastic deformation or the alignment tool.
Elastically deformable means preferably takes place between the transmission housing and one of the input and output disks.
Elastically deformable means preferably includes a spring, such as spring washer Belleville (Belleville).
Next will be described a specific variant of implementation of the present invention only by way of example, with reference to the accompanying drawings, on which:
Figure 1 is a view in longitudinal section of a variant of implementation of variation transmission in accordance with the present invention;
Figure 2 is a schematic representation of a transmission shown in figure 1; and
Figure 3 is a front view in cross section of a transmission shown in figure 1, when viewed in the direction of the arrows III-III, showing a management tool rollers.
The system continuously variable transmission includes a variator V, with the input disk 10 with a toroidal groove and located opposite the output disk 12 with a toroidal groove. Two rollers 14, 16 are installed in the toroidal cavity formed between opposing surfaces with toroidal undercut the input and output disks 10, 12 for the transmission of motion from the input disk 10 to the output disk 12 with respect, which is variable due to the inclination of the rollers 14, 16.
Input the first disk 10 is connected with the input shaft 18 of the system and rotates with it. The variator V provides output power 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 input power for mixed epicycle gear E1. As shown schematically, the end of the output shaft of the variator 20, remote from the output disc 12 carries a first Central gear S1 mixed epicycle gear E1. Drove C1 gears E1 is connected with the input shaft 18 and provides them in motion. Drove C1 carries four identical, evenly spaced internal radial direction of the planetary gears P1 and four identical, evenly spaced outer in the radial direction of the planetary gear P2 (not visible in figure 1) the same size as inside in the radial direction of the planetary gears P1. Interior in the radial direction of the planetary gears P1 engages with the first Central gear S1 and the corresponding one of the four outer in the radial direction of the planetary gears P2. Outer in the radial direction of the planetary gear P2 also engages with the gear A1 with internal gearing supplied inside the teeth, which form in the output power of the mixed epicycle gear E1. Output power from gear A1 with internal gearing is transmitted through a coaxial output shaft 22 in the form of a pipe to a simple downward epicycle kit E2 gears. Epicycle reduction kit E2 gears contains a Central input gear S2, supported by the shaft 22, which is engaged with four spaced at equal angular distances of the planetary gears P3, supported by the planet carrier C2. Planetary gears P3 also engages with the gear A2 with internal gearing, mounted on the transmission housing. The rotation of the carrier C2 generates the output power of the epicycle reduction kit E2 gears and sends out the output shaft 24, which is connected to the planet carrier C2. Output shaft 24 is coaxial with the input shaft 18, one end of which fits into a recess 26 in the inner end of output shaft 24.
Transmission is placed in essentially tubular sump 30 which supports the input and output shafts 18, 20. The end of the crankcase 30 adjacent to the input shaft 18, is closed by end plates 32. Conical spring washer 34 Belleville passes between the inner surface of the end plate 32 and the annular support plate 36, which is in rolling contact with outwardly the flat surface of the input disk 10 of the variator. Spring washer Belleville applies force ("end load") to the input disk 10 and provides the ability to transmit torque from the input disk 10 through the rollers 14, 16 to the output disk 12.
By means of variation of the inclination of the two rollers 14, 16 (as described below) you can adjust the speed of the output disc 12 relative to the input disk 10. Through a combination of rotations of the input gear and the output of the variator in a mixed epicycle gear E1, you can change the power output gear. In the shown device, the transmission may be changed gear from full reverse, through "neutral gear", to the full line. However, with appropriate selection of gear operating range of the variator can be adapted to the needs. For example, the variator can be performed with the possibility of changing from the low reverse gear through a neutral gear to a direct increase of the transmission if the vehicle running gear, usually operated at a direct gear and only sometimes is operated in reverse gear.
The mechanism for changing the inclination of the two rollers 14, 16 in more detail is shown in figure 3. Each roller 14, 16 is installed with an option of rotation in raichoor 40 by means of trunnion 42, which is mounted for rotation in the opposite flat support plates 44, 46 of the roller. One end of each roller 40 is connected with a corresponding one of two ends of the cross member 48 of the lever 50 control through the spherical bearing 52 (for example, "Rose bearing"made Rose Bearings Limited). The lever 50 of the control is equipped with a hinged finger 54, located midway between the center points of the two spherical bearings 52. Pivot pin is in the slot 56 of the same width as the diameter of hinge finger, but continues in a radial direction relative to the axis of rotation of the variator. In the mounting lug 58, which acts in the variator in the space between the input and output disks 10, 12, made the slot 56.
The lever 50 is equipped with a shoulder 60 which protrudes from the crankcase of the variable in the direction perpendicular to the connection line of the Central points of two spherical 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, made with a hole 62 for connecting two bozinovski cables (not shown) or other direct mechanical connection for rotation of the lever in opposite directions. The connection is a direct mechanical connection from the person operating the equipment, part of which forms the box the gear, and it is important that any force to the lever 50 should be applied in the direction perpendicular to the longitudinal axis of the shoulder 60, so no need to apply any force along the longitudinal axis of the shoulder 60. For example, the shoulder 60 may be connected to the accelerator pedal of the vehicle or pedal acceleration and reverse.
When the lever 50 is rotated, one of the rollers 10, 12 is pushed and the other pulled, both with equal torque. Mount hinge finger 54 within the slots 56 in the mounting lug 58 provides the ability to move the finger 54 in the radial direction inward and outward, and this ensures that the horizontal force from the rollers equalized and neutralized each other. This is important in cheap assemblies in which the components manufacturer, is probably less accurate. Radial movement of the hinge arm allows movement of the lever in the position in which any violation of the balance between the two rollers, which are the result of differences in production will be offset.
1. Variation transmission containing the input shaft, the input disc mounted on the input shaft for rotation with it, the output disk facing the input disc and made with the possibility of a coaxial rotation with him, and input and output disks form toroidal is to satisfy the cavity between them; only two rollers located in the toroidal cavity; first and second means idlers are rotatably mounted respectively to the first and second rollers; means end load for pressing the rollers into contact with the input and output discs to transmit movement; lever means having an axis of rotation, and two means of idlers mounted on the lever means on opposite sides of the axis of rotation, and a turning means for turning the lever means about the axis of rotation, with the axis of rotation of the lever means is arranged to move in one specified in the radial direction relative to the axis of rotation of the input and output disk.
2. Transmission according to claim 1, in which the axis of rotation of the lever means fixed in the direction perpendicular to the radial direction.
3. Transmission according to claim 1, in which the lever means includes pivot pin, which is made with the possibility of displacement along the slot, which runs in the radial direction.
4. Transmission according to claim 2, in which the lever means includes pivot pin, which is made with the possibility of displacement along the slot, which runs in the radial direction.
5. Transmission according to claim 3, in which the diameter of hinge finger, essentially, the same as Shire is in the slot.
6. Transmission according to claim 4, in which the diameter of hinge finger, essentially the same as the width of the slot.
7. Transmission according to any one of claims 1 to 6, in which the axis of rotation of the lever means is arranged to move a given distance in the radial direction.
8. Transmission according to any one of claims 1 to 6, in which the turning means for turning the lever means about the axis of rotation contains a plot of the shoulder.
9. Transmission according to claim 7, in which the turning means for turning the lever means about the axis of rotation contains a plot of the shoulder.
10. Transmission according to any one of claims 1 to 6, optionally containing hinge means between each means of the roller and lever means.
11. Transmission according to claim 7, additionally containing the hinge means between each means of the roller and lever means.
12. Transmission of claim 8, further containing a hinge means between each means of the roller and lever means.
13. Transmission according to claim 9, further containing a hinge means between each means of the roller and lever means.
14. Transmission of claim 10, in which the hinge means includes a ball joint.
15. Transmission according to claim 11, in which the hinge means includes a ball joint.
16. Transmission by A12, in which the hinge means includes a ball joint.
17. Transmission in item 13, in which the hinge means includes a ball joint.
18. Transmission according to claim 1, in which the input shaft and the output drive form the input power mixed epicycle gear.
19. Transmission on p in which mixed epicycle gear is coaxial with respect to the input shaft.
20. Transmission on p, optionally containing means downshift, United with the release of mixed epicycle gear.
21. Transmission according to claim 19, further containing a means downshift, United with the release of mixed epicycle gear.
22. Transmission according to claim 1, in which the tool end load contains progtesterone tool.
23. Transmission according to article 22, in which the tool end of the load contains only progtesterone tool.
24. Transmission according to item 22 or 23, in which progtesterone tool passes between the transmission housing and one of the input and output disks.
25. Transmission according to article 22, in which progtesterone means includes a spring.
26. Transmission according to item 23, in which progtesterone means includes a spring.
27. Transmission in paragraph 24, to the second progtesterone means includes a spring.
SUBSTANCE: proposed system comprises gearshift element including rod and lever parts, gearshift fork parts, multiple rod elements of gearshift mechanisms jointed to said fork gearshift parts. Lever part move to select and shift gear and gets pressed against selected gearshift ledge element. Every said element comprises a separate tooth-like ledge. Said lever part moves to selection axis and rotates about the latter to exert force in gearshift direction on one side of selected element tooth-like ledge and to exert force in gearshift direction on opposite side.
EFFECT: reduced gearshift time interval.
5 cl, 14 dwg
FIELD: transport engineering.
SUBSTANCE: vehicle consists of motor, of hydraulic pump, of running hydro-motor, of running wheel, of adjustment block, of vehicle speed measurement block. The adjustment block is designed to operate under mode of reduced slipping in the range of low speed, when speed of the vehicle is less or equal to specified speed. This is designed to reduce maximal speed of motor rotation, when speed of the vehicle decreases.
EFFECT: reduced hazard of slipping.
6 cl, 9 dwg
SUBSTANCE: transmission comprises gear shift element (51) displacing towards gear shift and gear shift selection directions, gear shift lever (40) having a pair of fork parts (41) spaced apart in gear shift direction and gear shift fork (20-23) linked with gear shift lever via gear shifter (30). Aforesaid element (51) is moved to displace one of aforesaid fork parts to wards gear shifting to selectively move gear shift lever to make gear shifting with the help of gear shift fork and gear shifter rod. Aforesaid pair of fork parts (41) is arranged spaced apart towards gear shifting direction.
EFFECT: fast and efficient gear shifting.
4 cl, 7 dwg
FIELD: machine building.
SUBSTANCE: invention is related to the field of motor transport machine building. System of automatic transmission control comprises pump, hydraulic distributor of modes having three positions, slide type pressure controller, hydraulic distributors of transmissions, pump filter, distributor filter, lubricating throttle, heat exchanger. In the first position hydraulic distributor of modes connects forward manifold and backward manifold to drain cavity. In the second position hydraulic distributor of modes connects forward manifold to the main manifold, and backward manifold to drain cavity. In the third position hydraulic distributor of modes connects forward manifold and backward manifold to the main manifold. Hydraulic distributors of transmissions are arranged as electromagnetic, and supply power fluid via control manifold to hydraulic cylinders of transmission control elements. Slide type pressure controller comprises stem with two pistons - left and right - that separate the stem into three sections. Pump filter is installed in supply channel between drain and controller drain channel. Distributor filter is installed in main manifold between pump and hydraulic distributor of modes. Lubricating throttle is installed in lubricating manifold, through which liquid is supplied to lubrication system. Heat exchanger is installed between lubricating system and lubricating throttle.
EFFECT: higher reliability of automatic transmission.
2 cl, 2 dwg
FIELD: machine engineering, namely stable-speed drives of subsidiary aggregates.
SUBSTANCE: drive includes planetary ball gearing 1000 with gradual variation of gear ratio; step motor, worm gearing. Planetary ball gearing includes planetary members having rolling contact with inner and outer raceways and it may gradually vary gear ratio in range 0.3 - 1.0. Inlet shaft of said gearing is joined with primary propeller such as crankshaft of transport vehicle engine through driving belt B1. Gearing includes at least one outlet shaft coaxial to inlet shaft. Processor analyzes revolution number of crankshaft and respectively varies gear ratio with use of step motor joined with worm gearing for keeping stable revolution number at outlet regardless of revolution number of crankshaft.
EFFECT: possibility for keeping stable revolution number of gearing regardless of revolution number of crankshaft of primary propeller.
21 cl, 18 dwg, 3 tbl
FIELD: mechanical engineering.
SUBSTANCE: infinitely variable gear box comprises a number of velocity governors. Driving disk (34), driven disk, and cylindrical bearing member (18) are in contact with the first, second, and third points on each of the velocity governors. Disk (60) of the thrust bearing transmits rotation to the driving disk. At least two generators of axial loading are interposed between the driven and driving disks and disk of the thrust bearing and can apply the axial loading to the driven disk.
EFFECT: improved structure.
62 cl, 27 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.
FIELD: mechanical engineering.
SUBSTANCE: variator comprises rotating driving member (69), at least three power controllers, bearing member (18) for the friction contact with each of the power controllers, at least one platform (13a) and (13c), at least one unmovable base (5a) and (5c), and a number of shaft holders. Each shaft holder slides over the convex surface of platform (13a) and (13 c) and concave surface of unmovable base (5a) and (5c) and controls axis of rotation in response to the axial movement of the platform.
EFFECT: enhanced reliability and simplified structure.
73 cl, 16 dwg
FIELD: transport engineering.
SUBSTANCE: invention can be used in wide range of vehicles, for instance, in minicars or trucks, snow movers, carts used when playing golf, cross country cars and scooters. Proposed driving pulley contains two centrifugal mechanisms, namely, positive unit and negative unit. Both units contains corresponding group of flyweights exposed to action of centrifugal force at rotation of driving pulley. Positive unit is used as standard speed governor which shifts one of two flanges of driving pulley towards other flange to increase diameter of running-over-over of driving pulley when speed rises. Negative unit is used to apply opposite force of positive unit when speed of rotation exceeds threshold value to delay rise of ratio of steplessly adjustable drive to higher ratio under action of positive unit. It provides maintenance of high speed of rotation at intensive acceleration and slow speed of rotation at slow speeds of vehicle.
EFFECT: provision of additional control over entire range of change of ratio of steplessly adjustable drive to decrease force created by centrifugal system of driving pulley.
12 cl, 6 dwg
SUBSTANCE: proposed reduction gear comprises drive shaft, interaxle bevel gear differential with front side gear with toothed hub, cylindrical pair with drive gear furnished with toothed hub and running in front side gear bearing, and toothed coupling with control mechanism. Toothed hub of cylindrical pair drive gear with outer gearing accommodates synchro unit with ring, while front side gear hub and drive shaft incorporate half-couplings. Toothed coupling with control mechanism engages half-coupling belonging to front side gear with either synchro unit or drive shaft half-coupling.
EFFECT: expanded operating performances.
SUBSTANCE: invention relates to automotive industry. Proposed transmission comprises main section and additional section with three idle shafts. Said main section comprises input shaft (1), output shaft (40), synchro unit (39') and two idle shafts (5) fitted in symmetry on both sides of said output shaft (40). Additional section comprises main shaft (25), synchro unit (23) wherein step-down gear (22) is fitted on main shaft (25), three idle shafts (19) arranged at equal distance around main shaft (25), while extension of main shaft (25) engages with flange (26).One of said three idle shafts (19) is aligned with one of two idle shafts (5) of the main section.
EFFECT: increased output power and better power transfer.
7 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: limiting drive ratio of variator (8) is facilitated by means of overrunning clutch (22 or 24). Overrunning clutch (22 or 24) is joined with both input and output of variator (8) and is designed for engagement (locking), when variator (8) reaches its maximum ratio.
EFFECT: raised reliability of facility.
5 cl, 1 dwg
FIELD: machine building.
SUBSTANCE: gear box consists of fixed case (1), of inlet link (2), of outlet link (3), of planetary mechanism (4), of single shaft (8) and of two-layer shaft (9), of tooth gear and of controlled clutches. Two-layer shaft (9) consists of external shaft (10) and internal shaft (11). Controlled clutch (12) connects internal (11) and external (12) shafts. The tooth gears are mounted on shafts (8, 10, 11) and form pairs (13, 14, 15, 16, 17) continuously engaged and transmitting motion from shaft to shaft by means of controlled clutches (18, 19, 20, 21, 22). Two controlled clutches (23) and (24) join correspondingly internal shaft (11) with fixed case (1) and external shaft (10) with fixed case (1). Carrier (5), sun gear (6) and epicycle (7) of planetary mechanism (4) are connected correspondingly to inlet link (2), internal (11) and external (10) shafts. Single shaft (8) is tied with outlet link (3).
EFFECT: increased reliability and resource of facility operation.
15 dwg, 1 tbl
FIELD: machine building.
SUBSTANCE: facility for continuously variable translation of motion consists of case, of driving shaft with drive pinion, of carrier, of converting mechanism, of driven shaft and of mechanism adjusting gear ratio. The drive pinion engages intermediary gears arranged along circumference. The intermediary gears transfer rotation via converting mechanisms and differentials installed between them to a tooth gear of internal engagement connected with the case and the driven shaft. Also uniform rotating motion of the driving shaft is converted into two separate, but equal by module continuous motions containing sections with accelerated and retarded motions. Further continuous motions are combined. Notably, uniform rotating motion transmitted to the driven shaft is resultant. Gear ratio between the driving and driven shafts is adjusted by phase shift of two separate continuous motions.
EFFECT: simplification of mechanism control and increased service life of transmission.
4 cl, 16 dwg
FIELD: machine building.
SUBSTANCE: converter of gear ratio of transmission consists of planetary differential with driving carrier (2) and two central gears (5, 6) different in diametre. One of central gears (5) transfers rotation to output shaft (7). Second central gear (6) transfers rotation via reducer (8) shifting direction of rotation and friction clutch (9), driven disk of which is rigidly coupled with the output shaft, also to output shaft (7). Both central gears rotate the output shaft in one direction, but have different speed of rotation. Difference of rotation speed is compensated with the friction clutch also distributing load between arms of the differential.
EFFECT: decreased losses and simplification of design.
3 cl, 1 dwg
FIELD: machine building.
SUBSTANCE: double-flow driving axle consists of two main transmissions. A driven gear in the first main transmission is rigidly attached to a carrier of a differential. The driven gear of the second main transmission is installed in a cylinder aperture of the differential carrier and is connected to the half-axle of the assembly with splines.
EFFECT: upgraded compactness and simplification of design.
FIELD: machine building.
SUBSTANCE: eight step offset shaft- planetary gear box consists of 6 gears, of elementary three-link planetary mechanism, dual coupling and two clutches of gear shift. Input shaft (2) and primary shaft (3) are coaxially arranged in supports of case (1) of the gear box. Secondary shaft (4) is mounted parallel to coaxial shafts (2) and (3), while coaxially to shaft (4) there are located output shaft of carrier (5) and output shaft (6) of the assembly. Tubular shaft (7) with gear (8) engaging gear (9) is mounted of primary shaft (3). Block of gears (9) and (10) is freely assembled on secondary shaft (4) whereon there is also freely installed gear (11). Gear (10) of the block engages gear (12) secured on primary shaft (3). Gear (13) is also secured on primary shaft (3) and engages gear (11) of secondary shaft (4). Carrier (14) is fixed on output shaft (5), while sun gear (15) is fixed on secondary shaft (4). Epicyclical gear (16) with tubular shaft (17) is connected with tooth crown (18). Sun gear (15) engage satellites (19) arranged on axles of carrier (14); the satellites are engaged with epicyclical gear (16). Two-position tooth crown (20) of carrier (14) is secured on output shaft of carrier (5); while three-position tooth crown (21) is mounted on output shaft (6). Three-position clutch (22) is installed on tooth crown (21) and is movably connected with slider (23) with fork; double-sided tooth crowns (24) are assembled on the slider; with their external crown they engage tooth crown (25) of the assembly case (1). Three position clutch (26) is mounted on secondary shaft (4) between the second and the third row of gears. Driven disks (27) of left coupling are arranged on primary shaft (3), while driven disks (28) of the right coupling are arranged on tubular shaft (7).
EFFECT: expanded operational functionality of vehicle.
FIELD: mechanical engineering.
SUBSTANCE: invention relates to mechanism of manual gearbox. Mechanism of manual gearbox with continuously variable reduction rate contains five shafts: input, main driven, main driving, intermediate shaft and output, and consists of three units: high range, low range and inverter, connected between intermediate shaft and out. Unit of high range consists of main part and four multitudes of reduction rates, which extend rating of change degree of main part. Main part contains two differential gears. Main driving shaft implements driving of shaft of each differential gear. Drive of main driven shaft is implemented from the other shaft of each differential gear, the third shaft of each differential gear is connected to variator. Unit of low range contains two differential gears. Driving shaft implements shaft driving of one of them, intermediate shaft implements driving of other shaft of other differential gear. Two multitudes of reduction rate units are located between shafts, not connected to input or output.
EFFECT: at provides as raise transmission efficiency as simplify structure.
52 cl, 21 dwg, 5 tbl
FIELD: engines and pumps.
SUBSTANCE: invention is related to hybrid power units of vehicles and may be used in city transport, for instance bus. Hybrid power unit of vehicle comprises primary power supply source (1), energy accumulator in the form of, for instance flywheel (18) or accumulator, and also drive comprising planetary disc variator (4), mechanism (12) for forced variation of gear ratio of planetary disc variator (4), which is arranged, for instance in the form of screw-nut gear, system (14) for control of mechanism for variation of gear ratio of planetary disc variator (4), periodically switched unit, for instance demultiplicator (29) comprising one or several gear switched drives, which transmits rotation from planetary disc variator (4) to drive of traction wheels (35) of vehicle. Range of gear ratios variation of periodically switched unit is arranged as lower than range of planetary disc variator variation.
EFFECT: saving of fuel and improved ecological compatibility of vehicle.
18 cl, 5 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