(57) Abstract:Usage: engineering. The inventive mechanism includes a planetary gear reducer, a friction clutch and an overrunning roller clutch. Drove gearbox is connected to the friction clutch. The sun gear reducer performs the function of the shroud overrunning roller clutch. Leading the discs of the friction clutch is connected with a sprocket wheel overrunning roller clutch. Pressure disc overrunning roller clutch is made in the form of a piston placed in the annular bore of the housing of the friction clutch. 1 C.p. f-crystals, 1 Il. The invention relates to mechanical engineering and can be used in the mechanisms of transmission of torque in excavators, tractors, cranes and other machines.Known gear torque, containing the pinion shaft which is movably fixed wheel disks of the clutch and the fixed carrier of the planetary gear, with satellites which engages crown gear pinion shaft and on the hub installed overrunning roller clutch 
The disadvantage of this mechanism is that the outer race overrunning roller MOFCOM and as a consequence of their rapid deterioration.In addition, the inclusion of the clutch is performed by iterative lever-hinge system, which is subject to abrasive wear and transmits the axial load on the bearings of the planetary reducer, reducing the lifetime of their work.Closest to the claimed solution is the gear unit torque  contains a planetary gear with leading a crown gear, which drove through the disk friction clutch is connected with a sun gear. The sun gear has a well-developed hub, made in the form of stars overrunning roller clutch outer ring which is rigidly connected with the fixed body.This construction has the following disadvantages: the crown gear is a leading link, that when the timing mechanism in the mode of the gearbox leads to lower efficiency; coaxial arrangement of the drive shaft, hub and sun gear complicates the manufacture and Assembly of the mechanism; since the torque in the planetary gear is transmitted from the crown gear to the cage, the overrunning roller clutch becoming jammed sun gear, perceives torque, increased gears planetary ed the and mechanism.The invention is characterized by the following set of essential features.Gear torque contains a planetary gear mixed gearing. Carrier of the planetary gear is connected with a friction clutch, wheel disks which are connected with a sprocket wheel overrunning roller clutch and sun gear acts as a shroud overrunning roller clutch. The crown gear is fixed.In the case of the friction clutch is made of inner ring bore, in which is placed a piston that serves as a pressure disk friction clutch.The proposed solution differs from the prototype in that the crown gear is stationary, leading the discs of the friction clutch is connected with a sprocket wheel overrunning roller clutch and sun gear acts as a cage roller clutch.In the inner ring bore of the housing of the friction clutch is placed a piston that serves as a pressure disk friction clutch.Due to the fact that the asterisk overrunning clutch rollers is placed in the bore of the flange solar chesteraaaar detail nazaruddin.The location of the overrunning roller clutch automatically provides a mechanical connection of the drive sprocket shaft of the engine even in the event of an emergency stop the flow of air in the pneumatic cylinder of the clutch, which ensures the reliability of the mechanism.As the roller overrunning clutch zakladivaetsa between the fixed sprocket wheel and yoke, jamming occurs more slowly, which increases the service life of the mechanism.The engine torque transmitted by the shaft, gears on overrunning roller clutch, not reinforced planetary gear, so the clutch is operating in the power saving mode, which increases the life of her work.Constructive performance overrunning roller clutch and its location provides ease of maintenance, improves reliability and increases the service life of the transmission mechanism of torque.The invention is illustrated in the drawing.Gear torque includes a housing 1 in which the bearing is located asterisk 2, rigidly connected with the planet carrier 3.On the axes 4 led 3 are 5 satellites included in engagement with the crown gear 6 and the practical boring, generatrix in contact with the rollers 8 and the sprocket 9 overrunning roller clutch and the sprocket 9 by means of the fingers 10 are rigidly connected with the leading disk 11.Driven disks 12 with the leading disk 11 forms a friction clutch, a housing 13 which is rigidly connected to the axis 4. The housing 13 is closed by a cover 14, which serves as a support disk friction clutch. In the housing 13 has an internal annular bore with the piston 15. The outer flange 16 of the housing 13 serves as a stopping brake. Gear shaft 17 mounted in aligned bearings of the sprocket 2 and the sun gear 7. Gear shaft 17 is connected by means of the ring gear 18 with the cylinder main clutch (not shown).Gear torque is as follows.Torque from the main clutch through the crown gear 18 is transmitted to the shaft-gear 17 and rigidly connected with it the sprocket 9 overrunning clutch.At the same sprocket 9 simultaneously rotating wheel disks 11 mounted on the sprocket 9 10 fingers. The piston 15 under the influence of compressed air compresses the package of the slave disk 12 and the leading disk 11, resulting in the housing 13 starts the rotation is related to the sprocket 2.The sun gear 7, the receiving rotation from satellites 5, no jams with a sprocket wheel 9 through the rollers 8, because it has a greater angular velocity and, thus, does idling.If under the piston 15 is not supplied with compressed air, the housing 13 of the friction clutch does not receive rotation from the input drive shaft 17. Through the sprocket 9 rotation with the input drive shaft 17 is transmitted to the rollers 8 and they zakladivaetsa in the bore a sun gear 7.As a result, the rotation of the sprocket 2 is transmitted via the planetary gear. In this case, the asterisk 2 receives the rotation, unidirectional rotating gear shaft 17, but with torque increased as a result of its transmission through a planetary reducer.Thus, the gear torque allows you to get on the sprocket 2 two unidirectional rotation speed.The use of such a mechanism in lifting devices, such as crane, allows you to lower the load at a speed lower speed of his ascent at the time of the change of direction is not interrupted gearing gear, which increases the reliability of the lifting machine. 1. Top gear is vtorogo connected to the friction clutch, and overrunning roller clutch, the rollers of which are intended for engagement with a sun gear of the planetary gear reducer, wherein the crown gear of the planetary gear reducer is stationary, leading the discs of the friction clutch is connected with a sprocket wheel overrunning roller clutch and sun gear acts as a shroud overrunning roller clutch.2. The mechanism under item 1, characterized in that the housing of the friction clutch made of the inner ring bore and the pressure plate of the friction clutch is designed as a piston placed in the annular bore.
FIELD: automotive engineering.
SUBSTANCE: proposed driving axle reduction gear without externally controlled lock mechanism includes complex final drive with under drive and differential. Drive installed between each output gear of differential and wheel is made as overdrive, i.e. increasing speed of rotation of driving axle transmitted from differential to wheel.
EFFECT: increased cross-country capacity of vehicle.
FIELD: machine building.
SUBSTANCE: invention refers to shiftable helical planetary gearing. The gearing consists of case (1), sun gear (17), carrier (16) with helical satellites (18) and axially travelling crown gear (19) designed to engage either case (1) or carrier (16). First saw-like connecting teeth (50) with first flat side (51) are arranged on ends of crown gear (19). Second saw-like connecting teeth (57) are arranged on case (1) and carrier (16); they have first flat side (67) and connecting teeth (50) entering the first ones so, that at corresponding step of shifting tangential forces actuating crown gear (19) hold down first flat sides (51) of first connecting teeth (50) to first flat sides (67) of second connecting teeth (57) on case (1) and carrier (16). Thus, crown gear 19 is fixed in its corresponding engaged position due to friction closure.
EFFECT: design of compact and simple in fabrication gear.
13 cl, 7 dwg
FIELD: machine building.
SUBSTANCE: planetary transmission (100) includes inlet element (13), outlet element (19), braking element, planetary transmission assembly (13, 14, 15, 16, 17), centrifugal coupling (40), free travel coupling (22), which are mechanically located between inlet and outlet elements. Free travel coupling is intended for direct connection of inlet and outlet elements from zero rotation frequency to the first rotation frequency. Centrifugal coupling is intended for direct connection of inlet and outlet elements from the second rotation frequency which is higher than zero rotation frequency to the third rotation frequency exceeding the first rotation frequency. Braking element is intended for selective rotation control of planetary transmission assembly.
EFFECT: reducing power losses and improving performance characteristics of the device.
7 cl, 11 dwg
SUBSTANCE: invention relates to automotive vehicle transmission module. Transmission module (1) has input (3) connected with engine, output (5) connected with differential, clutch (7) and planetary gear (21). The first rotating component (23) of planetary gear is connected with clutch casing (9), the second rotating component (25) is connected with brake (27), the third rotating component (29) is connected with output (5). Transmission (31) is a part of transmission module (1). Between the clutch (7) and the planetary gear (21) there is partition (45) which is connected with gearbox casing (33). Between the partition and the gearbox casing volume is formed filled with oil (47). Clutch drive cylinder (15), the main cylinders of brake (27) and their incoming pipelines are attached to partition (45) with the result that activation is performed in single module.
EFFECT: simplification and improvement of transmission module.
19 cl, 5 dwg
FIELD: mechanical engineering.
SUBSTANCE: invention relates to hybrid vehicles. Drive control system for a hybrid vehicle with an engine, the power distribution unit, motors and braking device comprises a controller that sets the first operational mode where the vehicle is driven by a first motor and second motor. In the second operating mode the vehicle is powered by an engine or the second motor subject to the allowance of carrier rotation. The time is calculated after completion of the first operation mode. Energy distributor temperature is estimated according to the noted time duration. The first operating mode, when the estimated temperature is less or equal to a predetermined allowable temperature and the first operation mode is prohibited, when the estimated temperature is higher than the allowable temperature is provided.
EFFECT: drive control system, which reduces gearbox wear.
5 cl, 5 dwg
FIELD: machine engineering.
SUBSTANCE: two-gear manual drive of shut-off valves comprises a housing (1), a cover (2), a planetary mechanism including a crown wheel (3), satellites (4), the axes of satellites (5), a carrier (6), and a central shaft-gear (7), a gear switch consisting of a central shaft-gear flange (8) with holes, which number is equal to the number of satellites (4), and the heads of satellite axles (9), which sizes correspond to the sizes of flange (8) holes, a gear switch lock (10), a flywheel (11), and a sliding bearing (12). Simplified design of the drive and reduction of its axial size and mass is achieved by designing the gear selector in the form of a narrow flange of the central shaft-gear (8) with holes and used as gear switch elements of heads of satellite axes (9), as well as by providing the lock of the gear switch position (10) in the form of one open elastic ring located in the circular groove of the carrier (6) of the planetary mechanism.
EFFECT: increased efficiency.
2 cl, 3 dwg
FIELD: transport engineering.
SUBSTANCE: invention relates to crawler tractors and it can be used in their full-flow hydrostatic transmissions. Said transmission contains dividing reduction unit 2, two parallel final hydrostatic drives with pumps 3, 4 and hydraulic motors 5, 6, track reduction units 17, 18 and two planetary mechanisms. Planetary mechanisms are installed between hydraulic motors 17, 18 and track reduction units 17, 18. Sun gears 9, 10 of planetary mechanisms are connected with each hydraulic motor by two similar gear trains 7, 9. Carriers 11, 12 of each planetary mechanism are connected with epicyclic wheels 14, 13 of other planetary mechanism and with track reduction units 17, 18. invention improves maneuverability of tractor, provides economic recuperation of brake power from trailing side to leading side at turning of tractor, reduced power load on engine at turning, reduced power losses in hydrostatic drives of transmission of tractor with possibility of use of hydrostatic drives of lower installed power.
EFFECT: improved service characteristics of tractor.
FIELD: mechanical engineering.
SUBSTANCE: infinitely variable reduction gear comprises input shaft connected with the driving electric motor and output shaft provided with a longitudinal opening connected with the controllable throttle through the coupling. The throttle is connected with the rotatable housing which receives the hydraulic braking device mounted inside the vessel. The hydraulic braking device is made of worm gearing whose worm wheel is connected with the output shaft. The worm wheel is coupled with two worm shafts arranged from both sides of the worm wheel. The axle of each worm shafts is connected with the gearing pump whose intake is connected with the space of the vessel and outlet is connected with the opening in the output shaft.
EFFECT: enhanced reliability and simplified structure.
FIELD: mechanical engineering.
SUBSTANCE: positive-displacement hydraulic-mechanical transmission comprises input shaft (1), output shaft (2), two interconnected reversible controlled hydraulic motors (3) and (4), four-link differential (5), and pumping devices (12), (13), (14), and (15). Satellites (7) and (8) of differential (5) are made in pairs and engage each other. Satellite (8) is wide and interposed between the large solar gear (10) and central wheel (11) with the inner engagement. Satellite (7) is narrow and engages small solar gear (9). Two switching devices (14) and (15) connect the shaft of hydraulic motor (4) with input shaft (1) of the transmission and central wheel (11) with the inner engagement. Two switching devices (12) and (13) connect the shaft of hydraulic motor (3) with output shaft (2) of the transmission and small solar gear (9) of the differential.
EFFECT: reduced mass and sizes and enhanced efficiency.
1 dwg, 1 tbl
FIELD: transport engineering.
SUBSTANCE: invention can be used as gearbox in vehicles or as actuator in tank armament stabilizers. Proposed stepless transmission contains power differential 1, comparing differential 30, regulating differential 2, two self-braking mechanisms 3, 4 operating in release mode, two regulators, and mechanism 36 for equalizing speeds of rotation of central gears of regulating differential. Input of power differential 1 is connected with drive and with input of regulating differential 2. Central gears 17, 18 of power differential are rigidly connected with driven members 15, 16 of self-braking mechanisms and are connected with central gears of comparing differential 30 to provide rotation of the latter in opposite directions. Driving members 13, 14 of self-braking mechanisms are connected with central gears of regulating differential by mechanism 36 equalizing speeds of rotation and are rigidly connected with regulators.
EFFECT: enlarged range of change of gear ratio, improved dynamic characteristics of vehicle, its reliability and multipurposeness.
FIELD: mechanical engineering and machine-tool building.
SUBSTANCE: invention can be used in vehicles and machine tools, different machines and mechanisms. Proposed continuously-variable transmission contains drive and output shafts and case accommodating drive and drive and driven constant-mesh gears, differential with coaxial gears mechanically engaging through planet pinions and provided with coaxial axle-shafts, and gear ratio changer including axial-plunger pump with inclined plate with rotary working member, pressure line and suction line connected with reservoir filled with working liquid. Adjustable bypass restrictor is installed in pressure line of pump. Output of restrictor is connected with said reservoir by drain line. Rotary working member of pump is made in form of block of working cylinders accommodating plungers, each being mechanically coupled with inclined plate. Differential is arranged inside working cylinder block of axial-plunger pump with coaxial arrangement of drive and driven gears and said block, and it has at least one pair of planet pinions installed for rotation in cylinder block of axial-plunger pump. Constant-mesh drive gear is connected with drive shaft, and constant-mesh driven gear is connected with drive gear of differential. Invention is aimed at enlarging functional capabilities of transmission owing to provision of limitation of speed of rotation and braking of output shaft, interruption of torque on shaft and control of delivery of pump included into gear ratio changer of transmission and increase of service life and provision of uniform rotation of output shaft and increase of efficiency of transmission.
EFFECT: enlarged operating capabilities, increased efficiency of transmission.
22 cl, 4 dwg
FIELD: mechanical engineering.
SUBSTANCE: infinitely variable transmission comprises power differential (1), synchronizing differential (2), two self-braking mechanisms (3) and (4), and two controllers. The input of power differential (1) is connected with the drive and input of synchronizing differential (2). Central wheels (17) and (18) of the power differential are connected with driven links (15) and (16) of self-braking mechanisms (3) and (4). Driving links (13) and (14) of self-braking mechanisms are connected with central wheels (19) and (20) of the synchronizing differential and controllers. Driven shaft (26) is connected with one of the central wheels of power differential (1).
EFFECT: expanded functional capabilities.
FIELD: mechanical engineering.
SUBSTANCE: variable-speed drive comprises two differential stages connected in series. The differential sage whose shaft is connected with the engine is the input shaft of the variable-speed drive and is made of a differential mechanism. The second differential stage is a hydraulic differential converter provided with two planet rows defined by the kinematical links of multi-gearing hydraulic pump and hydraulic motor provided with different gear ratios . The axles of the satellites of the first and second differential stages are mounted inside the housing . The housing is set in bearings inside the crankcase of the variable-speed drive and represents a carrier for both of the differential stages. The carrier is provided with the free running clutch.
EFFECT: enhanced efficiency.
FIELD: engines and pumps.
SUBSTANCE: invention refers to devices for stepless converters of torque and rotary motion. A gear variator contains two differential mechanisms (1, 2), two reducers (3, 4) with different ratios. One of the shafts of each reducer is connected to a hydro pump (11) equipped with an adjustable valve. Two differential mechanisms and two reducers are arranged so that input shafts of the reducers are at the same time half axes of the first differential mechanism, while output shafts of reducers are half axes of the second differential mechanism. The differential allows distribution of rotation between half axes within range from zero to a speed of a drive shaft on one of the half axes which corresponds to interval from the speed of the drive shaft to zero on the other half axis. A rotation speed of the variator driven shaft can be adjusted by means of adjustable valves through which liquid is pumped by gear oil pumps driven with specified shafts of the mechanism.
EFFECT: variator allows to change value of torque within any given range.
FIELD: engines and pumps.
SUBSTANCE: invention relates to a hydromechanical transmission incorporating a split mechanical and hydrostatic drives and is designed to be used in agricultural tractors. The hydromechanical four-gear infinitely-variable transmission incorporates planetary mechanism (32) including three planetary trains (34, 36, 38), four clutches (C1, C2, C3, C4) and brake (48) to throw in reverse. First hydrostatic assembly (20) is in mesh with planetary mechanism second crown gear (R2). In the First and Fourth gears, second hydrostatic assembly (18) is in mesh with carrier (28) thrown in by first clutch (C1). In the Second and Third gears, second hydrostatic assembly is thrown into mesh with sun gear (S2) of the planetary mechanism second train by second clutch (C2). In the First and Second gears third clutch (C3) meshes carrier (28) with output shaft (46). In the Third and Fourth gears, fourth clutch (C4) meshes sun gear (S2) of the second planetary train with output shaft (46). Third planetary train (38) incorporates brake (48) to throw in reverse. When brake (48) meshes to throw in reverse and both clutches, third and fourth, (C3, C4), are disengaged, third train sun gear (S3) and, hence, transmission output shaft (46) runs reverse.
EFFECT: infinitely-variable transmission with steady efficiency in operating conditions.
27 cl, 6 dwg
FIELD: machine building.
SUBSTANCE: hydro-automatic output control gear incorporates input shaft 1 and output shafts 3, 4 coupled with propulsion unit and inter-jointed by differential 2, its output elements being coupled with pumps 10, 11 be planetary drive of hydraulic control system. Pumps 10, 11 communicate, via control valve 17, with common fluid flow rate control valve driven by both aforesaid output elements. Aforesaid control valve 17 is articulated to steering drive worm 18.
EFFECT: improved vehicle propulsion performances, better steering, longer life of propulsion unit due to automatic shut-off of fluid flow rate control valve.