Track vehicle transmission

FIELD: transport engineering; mechanical and hydromechanical transmissions of track vehicles with reduction gear type steering gears.

SUBSTANCE: proposed transmission of track vehicle has nonreversible gearbox 1 whose input shaft 2 is coupled with driving gear 3 of final drive 4. Driven gear 5 of final drive 4 is rigidly and coaxially installed on driving drum 6 of steering gear, being in constant meshing with driving gear 3. Four planetary three-member mechanisms are coaxially installed driving drum 6. Two similar internal planetary mechanisms with single-rim planet pinions include sun gears 7 and 8, carriers 9 and 10 and epicyclical gears 11 and 12. Carrier 9 and epicyclical gear 12 are interconnected and connected with driven shaft 13 of steering mechanism. Carrier 10 and epicyclical gear 11 are interconnected and are connected with driven shaft 14 of steering mechanism. Two similar external planetary mechanisms with two-rim planet pinions include sun gears 15 and 16, carriers 17 and 18 and epicyclical gears 19 and 20. sun gears 7 and 15 are rigidly interconnected and are connected with driving drum 6 by means of controlled friction clutch 21. Sun gears 8 and 16 are rigidly interconnected and are connected with driving drum 6 by means of controlled friction clutch 22. Sun gears 7 and 15 are furnished with controlled steering brake 23, and sun gears 8 and 16 are furnished with controlled steering brake 24. carriers 17 and 18 of external planetary mechanisms are provided with two support brakes 25 and 26. Epicyclical gears 19 and 20 of external planetary mechanisms are rigidly and coaxially secured on driving drum 6. Driven shafts 13 and 14 of steering gear are furnished with stop brakes 27 and 28 and are connected with driving wheels 31 and 32 of vehicle through track reduction units 29 and 30.

EFFECT: possibility of turning in any direction at minimum radius, simplified design of gearbox, provision of complete reversing.

1 dwg

 

The invention relates to mechanical and hydromechanical transmissions caterpillar machines with mechanisms of rotation of the gear type.

Known transmission caterpillar machine with steering gear type "LC", developed Glaucium and Magnanese (Bauman. Bauman), used in Soviet heavy tanks and self-propelled artillery units in 40-50-ies of XX century (Gruzdev NI and other Tanks. Design and calculation. 4.11. Powertrain. M: Voenizdat. 1951, s-340; Nosov N.A. and other Calculation and design of tracked vehicles. L.: Engineering. 1972, s, rishu).

Feature transmission with steering-type "gear" is automatic, without switching transmission speeds are reduced on both sides of a vehicle at the entrance to the rotation, and the velocity of the backward side is reduced to a greater extent than runner. In addition, the reduced speed of sides increases proportionally decrease the turning radius. This property of the rotation mechanism "gear" allows heavy machines with a relatively low specific capacity to significantly increase the probability of turning without overload and siloxane of the engine, moreover, the rotation mechanism "LC" provides recovery (transmission) part of the BHP with lagging flanges on the runner, and this increases Tagalog is the size of the machine and increases the efficiency of the rotation mechanism. The minimum turning radius of the machine with the mechanism of rotation of the gear is equal to the gauge of the machine.

The lack of transmission with steering "gear", is selected as the analogue of the claimed invention is the absence of mode rotation with a fixed intermediate radius at which all the braking power of the backward side is sent to the runner Board without loss of brake rotation, providing a mechanism rotate with the maximum value of the coefficient of transmission.

Another disadvantage of the transmission with steering "gear" is the inability to turn the machine "on the spot", with a turning radius equal to half the gauge of the machine, which greatly restricts the possibility of maneuvering in cramped conditions.

The closest analogue, selected as a prototype by the totality of the circuit characteristics and the achieved technical result is the transmission of a caterpillar with a rotation mechanism of the type "LC", is structurally integrated with a two-stage planetary gear, allowing to double the number of gears forward and reverse transmission, compared with the same number of gears in the gearbox, as well as to provide an intermediate fixed turning radius with full recovery of the braking power of the backward side (the Guide is materialnoi parts and operation of the T-10M. M.: Izd. THE USSR MINISTRY OF DEFENSE. 1960, s-287).

The disadvantage of the prototype, as analogue, is the inability of rotation of the machine "in place" around a fixed vertical axis passing through the geometric center of the machine, with the same in magnitude and oppositely directed velocities sides, with a turning radius equal to half the track, and with zero speed translational motion, which significantly limits its flexibility if necessary twists and turns on the limited ground.

Another disadvantage of the prototype is the impossibility of splitting the full speed range of the transmission intermediate gear at the best law such as the law of geometric progression, or close to it, because of the two-stage multiplier, installed in series with the main transmission and specifying a constant ratio gear ratios of transmission received on the same gear transmission and two speed multiplier. The consequence is the impossibility of achieving high values of the load factor of the engine, which reduces the mobility of the machine. In addition, the serial connection in the transmission gearbox and a two-stage multiplier affects the efficiency of transm the hurt on accelerated programs most important for high-speed tracked vehicles.

The disadvantage of the prototype is the ability to rotate with the intermediate fixed radius only on the transmission of the accelerated series, when the multiplier on the runner Board included increasing the transfer, and the lagging Board - direct transmission. The rotation of the intermediate fixed radius on the delayed transmission range when conditions turn most severe, in the prototype fundamentally impossible.

Another disadvantage of the prototype is the presence of reverse gears in the gearbox. If the vehicle is reversing is provided by the main transmission, there is increased power loading planetary gearbox, as a rule, the presence of significant internal circulation of power, which increases the power losses in the gearbox. If the vehicle is reversing is provided a separate reverse gear, for example, at the entrance to the main transmission, as in the T-10M, the efficiency of the transmission is reduced even more due to the series connection of a reverse gear of the main transmission and the multiplier. If the transmission of the machine is not planetary, and is accomplished using simple gear mechanisms with fixed axes of rotation of the toothed wheels, the presence of the s in this box one or more reverse gears very significantly increases its size and weight.

Noted disadvantages prototype eliminates offered as the invention of the transmission of a caterpillar with a gear rotation mechanism.

The purpose of the invention is the provision of a tracked machine with a gear mechanism for rotation in the transmission of the opportunity to take a turn in any direction with a minimum possible radius equal to half the gauge of the machine, measured from the center of rotation to the longitudinal axis of the supporting pad runner caterpillars, the intermediate fixed turning radius on any transmission, providing the possibility of breaking the speed range of the transmission according to any desired law, as well as simplifying the transmission device and providing the possibility of obtaining multiple reverse gears, and in the limit the same as the speeds forward (full reverse), with a considerable reduction of power losses in the transmission straight-line machine and when her turn.

This task is solved in that in the transmission of a caterpillar, containing the gearbox, linked through the main transmission gear mechanism rotate, which contains the leading drum, two identical three-tier internal planetary mechanism, epicycle gear and drove them in pairs and cross-connected to the two driven shafts which, each of them through the side gear is connected with the leading side wheel, two identical outer three planetary gear, a sun gear which is connected with a sun wheel of the internal planetary mechanisms, two eponymous main link connected with the lead drum, the other two eponymous main level has an individual reference brakes, two multi-disc friction clutch installed between the two main parts of the external and internal planetary mechanisms, and two stopping brake on the driven shafts, according to the invention, as the gearbox is installed prevenirea transmission, leading the drum rotation mechanism is connected with a sun wheel inner and outer planetary mechanisms through two multi-disc friction clutches themselves are pairwise United solar wheel inner and outer planetary mechanism is equipped with two individual brake rotation epicycle gears two outer planetary mechanisms are rigidly connected to the lead drum, drove these mechanisms are equipped with two individual reference brakes themselves and outer planetary movements are made with internal gear number equal to minus one.

Thanks to the installation of the transmission preversion the th transmission reduction of power losses, transmitted from the engine through the transmission to the drive wheels of the machine, as well as reducing the weight and size of the transmission.

Due to the presence of two multi-disc friction clutches and two brakes turn mounted on each pair of interconnected sun gears of the inner and outer planetary mechanisms to ensure the presence of the most cost-effective intermediate fixed radius on all gears transmission obtained with the full-on brake turn from the backward side and the friction clutch from the side of the runner rail cars.

Due to the presence of two reference brakes installed on Fadilah outer planetary mechanisms, eliminating the need for reverse gears in the gearbox, since the outer planetary mechanisms enabled brakes drove operate as two identical reversing transmission, providing protivobloshinye epitsiklov and sun wheels of equal angular speeds, providing movement of the machine back on any gear in the gearbox. The vehicle is in forward motion is at anchor off the brakes and drove included a friction clutch that completely block the outer and inner planetary mechanisms.

Through the use, in kachestvennyh, planetary mechanisms with internal gear number that represents the ratio of angular velocities epicycle and sun wheels when the driver braked equal to minus one, lets turn the machine on the spot with a radius equal to half of the gauge. The direction of such rotation is effected by switching on the friction clutch from the side of the runner Board, moving forward, and turning on the pivot brakes were taken from the backward side, moving in reverse. Due to the fact that the gear ratio interlocked outer planetary mechanism with side runner Board is accurately plus unit, and the gear ratio of the outer planetary gear from the backward side is exactly minus the unit, the speed of the sides of the machine will be exactly the same in magnitude and opposite in direction, providing rotation of the machine on the spot with zero speed translational motion.

The invention is illustrated by the drawing, which shows a diagram of the transmission.

Transmission caterpillar machine contains serverserial transmission 1, an input shaft 2 which is connected with a leading gear wheel 3 and the main transmission 4. Slave gear 5 of the main transmission 4 is rigidly and coaxially mounted on the master drum 6 mechanisms is and rotation, and is in constant engagement with a leading gear wheel 3. Inside of a driving drum 6 are placed coaxially four planetary three-tier mechanism. Two identical internal planetary mechanism with odnovintovye satellites include sun gears 7 and 8 led 9 and 10 and epicycle gears 11 and 12. Drove 9 and epicycle gear wheel 12 is connected between themselves and with the driven shaft 13 of the rotation mechanism. Drove 10 and epicycle gear wheel 11 are interconnected and driven shaft 14 rotation mechanism. Two identical outer planetary mechanism with dvuhventsovye satellites include sun gears 15 and 16, drove 17 and 18 and epicycle gears 19 and 20. The sun gears 7 and 15 are rigidly interconnected and are connected with the leading drum 6 by means of controlled friction clutch 21. The sun gears 8 and 16 are rigidly interconnected and are connected with the leading drum 6 by means of controlled friction clutch 22. The sun gears 7 and 15 is equipped with a controllable brake rotation 23 and the sun gear 8 and 16 is equipped with a controllable brake of rotation 24. Drove 17 and 18 of the outer planetary mechanism is equipped with two individual reference brakes 25 and 26. Epicycle gear wheels 19 and 20 of the outer planetary mechanisms rigidly and coaxially fixed on the master drum 6. Driven shafts 3 and 14 of the rotation mechanism provided with an individual stopping brakes 27 and 29 and through the side gears 29 and 30 are connected to the drive wheels 31 and 32 of the machine.

The inventive transmission caterpillar machine operates as follows.

In straight-line motion of the machine forward in all gears gearbox operated friction clutches 21 and 22 are included, and all the brakes off. When reversing to a lower gear gearbox friction clutches 21 and 22 are turned off and the base of the brakes 23 and 24 are included. Thus, changing the direction of rectilinear motion is not an additional reverse gear in the gearbox or separate Autonomous and specialized reverse gear, as in the similar and the prototype, and the use of the new features of the proposed mechanism rotate with the transmission preferiremos transmission. Braking action during rectilinear movement of the forward or reverse is simultaneous (synchronous) dosed inclusion stopping brakes 27 and 28.

At the entrance of the machine to turn in the rotation mechanism from the backward side (for example, one that provides a sprocket wheel 31) should be off slip clutch Assembly 21 when moving forward or backing brake 25 when reversing. The machine will unmanaged rotation is large enough, in most cases, the radius, the magnitude of which will depend on the physico-mechanical properties Grun the and or the road surface, the speed of the machine logs in the turn, weight machines and geometrical parameters of the reference sites tracked propulsion. Turning control (regulation of the magnitude of the radius of rotation in the direction of decreasing) produce dosed inclusion brake rotation 23, the amount of slippage, which is directly proportional to the turning radius. With full inclusion of the brakes 23, with its zero slipping receive intermediate fixed turning radius, theoretical relative value which, in the tracks of the machine, will be 1+KInwhere KIn- kinematic characteristics of the internal planetary mechanism, which represents the ratio of the number of teeth of the epicycle gear 11 (12) to the number of teeth of the sun gear 7 (8). When turning with a fixed intermediate radius speed runner Board will be

,

and lagging

,

where VCR- machine speed before entering the turn when held constant speed mode of operation. When turning with a fixed intermediate radius in the transmission completely, no loss of power caused by the slipping is not fully on or off the brakes and friction clutches. If necessary turning radii smaller the, than the intermediate fixed, turn off the brake rotation 23 and include dosed (corresponding required amount of turning radius) slip stopping brake 27. Full inclusion stopping brake 27 to rotate the machine with radius equal to its track. Termination of rotation of the machine, the transition to its rectilinear movement is off the brake 27 or 23, depending on whether more or less than a fixed, was turning radius, and the inclusion of the friction clutch 21 (forward gear) or reference brake 25 (reverse).

The rotation mode "on the spot" with a radius equal to half track machine and zero velocity of forward movement of the machine, is included in the rotation mechanism of supporting brake outer planetary gear of the Board, which in turn should move in reverse, for example brake 25, and the inclusion, respectively, of the friction clutch 22, which provides the movement of the other side in forward motion. Since the rotation mechanism applied to outer planetary mechanisms with internal gear number equal to minus one, or, equivalently, with the kinematic characteristics ToN=1,0, the speed of the sides of the machine during the rotation will be equal in magnitude and oppositely directed, and these speeds CPA is to speed rectilinear motion machine on the same transmission transmission will be equal to (1+2K In)·VCR. In other words, the speed of the boards due to the properties of the rotation mechanism can reduce more than three times, which is completely justified, because the rotation of the machine on location is one of the most difficult modes of movement for any tracked vehicle.

As the outer three planetary mechanisms with internal gear number equal to minus one, and kinematic characteristics equal to the unit, use the basic planetary mechanisms mixed engagement with dvuhventsovye satellites with numbers of teeth of gear wheels, for example: ZE=96 - number of teeth epicycle gear (19 and 20), ZST-e=32 and ZARTICLE-=16 - number of teeth of gear rims dvuhventsovye satellites, which are in constant engagement with the epicycle and sun gears, respectively, and are installed on Fadilah 17 and 18 of the outer planetary gears; ZWith=48 - number of teeth of the sun gear (15 and 16). When the specified number of external teeth of the planetary mechanisms are internal gear ratio

,

and kinematic characteristics

The proposed transmission can be used for crawler tractors industrial, agricultural, and SP is inogo destination excavation and transport, utility and road construction machines with special crawler databases, crawler tractors, transporters and vehicles, as well as objects of armored vehicles, particularly those with high enough power density to a significant increase maneuvering qualities of cars when driving in cramped conditions. The use of the claimed transmission in a self-propelled transport and traction machines eliminates the need to use reverse gears in the main gearbox or use a specialized reverse gear within the transmission, and the vehicle is reversing any, in principle, the gear transmission is provided by the new features of the mechanism of turn.

Transmission caterpillar machine containing the gearbox, linked through the main transmission gear mechanism rotate, which contains the leading drum, two identical three-tier internal planetary mechanism, epicycle gear and drove them in pairs and cross-connected to the two driven shafts, each of which is through the side gear is connected with the leading side wheel, two identical outer three planetary gear, a sun gear which is connected with a sun wheel within the indoor planetary mechanisms, two eponymous main link connected with the lead drum, the other two eponymous main level has an individual reference brakes, two multi-disc friction clutch installed between the two main parts of the external and internal planetary mechanisms, and two stopping brake on the driven shafts, characterized in that the transmission as a transmission installed prevenirea transmission, leading the drum rotation mechanism is connected with a sun wheel inner and outer planetary mechanisms via two multi-disc friction clutches, and pairwise United solar wheel inner and outer planetary mechanism is equipped with two individual brake rotation epicycle gears two outer planetary mechanisms rigidly connected with the lead drum, drove these mechanisms are equipped with two individual reference brakes themselves and outer planetary movements are made with internal gear number equal to-1.



 

Same patents:

FIELD: transport engineering; mechanical and hydromechanical transmissions of track vehicles.

SUBSTANCE: proposed transmission includes gearbox 1 connected by shaft 2 with final drive 3. Driving gear 4 of final drive 3 fitted on shaft 2 is in constant meshing with driven gear 5 of final drive and driving gear 6 of additional gear drive 7. Driving gear 6 installed for rotation on shaft 2 is in constant meshing with driven gear 8 of additional driven 7. Final drive 3 and additional drive 7 have gear ratios of equal value and sign. Driven gear 5 of final drive 3 is coaxially secured on differential carrier 9, and driven gear 8 is coaxially secured on central gear 10 of differential. Driving gears 4, 6, respectively, of final driven 3 and additional driven 7 are furnished with two two-position controlled clutches 11 and 12. Clutch 11 in right-hand position connected, and in left-hand position disconnects driving gear 4 and driven shaft 2. Clutch 12 in right-hand position disconnects and in left-hand position connects driving gear 6 with drive shaft 2. Transmission with steering gear depicted in Fig. 1 is provided with second central gear 13 in three-member differential and several groups of air planet pinions 14 installed on carrier 9. Gears 10 13 are provided with brakes 15, 16 and they connected by means of driven shafts 17 and 18 of steering gear with driving wheels 12, 22 of vehicle through track reduction units 19, 20. Transmission depicted on Fig. 2 is provided with second central gear 13 in five-member differential, brakes 15, 16 being stop and turn brakes, two central gears 23, 24 connected by means of driven shafts 17, 18 of track reduction units 19 20 with driving wheels 21, 22 of vehicle and several groups of two-rim planet pinions 14 installed on carrier 9.

EFFECT: provision of turning in any direction at minimum radius and reliable parking braking.

2 dwg

Vehicle power unit // 2261815

FIELD: transport engineering; crawler and wheeled vehicles.

SUBSTANCE: proposed power unit consists of six-cylinder opposite diesel engine with turbocompressor supercharging and central reversible gear shifting-and-steering mechanism with high-speed complex interlocked torque converter, with two-shaft four-speed conventional gearbox with friction engagement of gears and power take off from reversible intermediate shaft of gearbox with additional creeper gear made by means of planetary train, and differential-type steering mechanism with hydrostatic transmission furnished with friction clutch to engage or disengage hydrostatic transmission from differential coupling between sides. Invention provides reduction of overall dimensions of power unit in height, reduction of distance between mating surface of engine and axis of output shafts of gear shifting-and-steering mechanism and enlarged functional capabilities of gear shifting-and-steering mechanism when power unit is used both for crawler vehicles and wheeled vehicles with steerable wheels.

EFFECT: reduced overall dimensions of power unit in height.

3 cl, 4 dwg

Vehicle // 2226472
The invention relates to mechanical engineering and can be used mainly as a compact tractor

FIELD: transport engineering; mechanical and hydromechanical transmissions of track vehicles.

SUBSTANCE: proposed transmission includes gearbox 1 connected by shaft 2 with final drive 3. Driving gear 4 of final drive 3 fitted on shaft 2 is in constant meshing with driven gear 5 of final drive and driving gear 6 of additional gear drive 7. Driving gear 6 installed for rotation on shaft 2 is in constant meshing with driven gear 8 of additional driven 7. Final drive 3 and additional drive 7 have gear ratios of equal value and sign. Driven gear 5 of final drive 3 is coaxially secured on differential carrier 9, and driven gear 8 is coaxially secured on central gear 10 of differential. Driving gears 4, 6, respectively, of final driven 3 and additional driven 7 are furnished with two two-position controlled clutches 11 and 12. Clutch 11 in right-hand position connected, and in left-hand position disconnects driving gear 4 and driven shaft 2. Clutch 12 in right-hand position disconnects and in left-hand position connects driving gear 6 with drive shaft 2. Transmission with steering gear depicted in Fig. 1 is provided with second central gear 13 in three-member differential and several groups of air planet pinions 14 installed on carrier 9. Gears 10 13 are provided with brakes 15, 16 and they connected by means of driven shafts 17 and 18 of steering gear with driving wheels 12, 22 of vehicle through track reduction units 19, 20. Transmission depicted on Fig. 2 is provided with second central gear 13 in five-member differential, brakes 15, 16 being stop and turn brakes, two central gears 23, 24 connected by means of driven shafts 17, 18 of track reduction units 19 20 with driving wheels 21, 22 of vehicle and several groups of two-rim planet pinions 14 installed on carrier 9.

EFFECT: provision of turning in any direction at minimum radius and reliable parking braking.

2 dwg

Angle gear drive // 2281862

FIELD: transport engineering.

SUBSTANCE: invention can be used at designing of angle gear drives of drive axles with rigid suspension of wheels, for instance, buses or trolleybuses. Proposed angle gear drive has case 1 with oil reservoir. Driving wheel 7 is installed bearings inside cup 10 rigidly coupled with body. Cover 18 with sealing member 19 is secured on flange of cup 10. Oil deflector 11 is installed between bearings of driving wheel 7 oil collector is made in form of space 14 on inner surface of body 2 and is coupled with through holes in cup 10. Oil holes 21 are symmetrical relative to horizontal plane passing through axle of driving wheel 7 at distance not exceeding inner radius of outer race of front bearing 9 of driving wheel 7.

EFFECT: increased service life of bearing units of drive axle angle drive driving wheel and enlarged operating capabilities.

3 dwg

FIELD: transport and agricultural engineering.

SUBSTANCE: proposed driving axle has housing, drive shaft, final drive in form of drive pinion and driven gear, differential case central hole fitted on bearings in housing and rigidly connected with driven gear, two driven shafts with screw thread, member movably connecting driven shafts by meshing with screw thread through solids of revolution and passing through central hole of differential case coaxially with case for axial displacement in said hole, and springs. Cavities, for instance, semi-spherical ones, are made in central cylindrical hole of differential case. Connecting member is made in form of cylindrical bushing on outer surface of which longitudinal grooves are made, for instance, with semispherical bottom, parallel to its axis, and on ends of inner surface cavities are made, for instance, semispherical ones. Ends of driven shafts from side of differential case are provided with outer thread and are installed in bushing for rotation. Bushing can be displacement both relative to differential case by means of solids of revolution, for instance, balls installed by one half in cavities of inner cylindrical surface of differential case and by other half, in longitudinal outer grooves of bushing and relative to driven shafts, by means of solids of revolution, for instance, balls installed in cavities of bushing and contacting with thread of driven shafts. Driven shafts are provided with stops to limit travel of bushing along driven shaft made, for instance, in form of beads on shafts and coil springs placed between beads and end faces of bushing. Cavities are made on end faces of driven shafts arranged inside differential case in which solids of revolution, for instance, balls are fitted.

EFFECT: simplified design, operation and repair of driving axle improved efficiency of its operation.

3 cl, 3 dwg

FIELD: mechanical engineering.

SUBSTANCE: proposed self-controlled automatic clutch has two outer clutch members and one inner clutch member with two rows of sprockets, locking disk with projections and cups for springs arranged between sprockets and installed for displacement through definite angle relative to inner clutch member, springs and rollers arranged in pairs in wedge-like slots formed between outer clutch member and sprockets. Rollers of one row are installed for engagement with rollers of other row through locking disk to change functions of driving and driven clutch members depending on direction of load. Invention provides distribution of torque between driving axles and driving wheels allowing different rpms of wheels at cornering and when running along rough roads and instantaneous locking and releasing of axles and wheels without assistance of driver.

EFFECT: increased cross country capacity of automobile and stability against skidding.

2 dwg

FIELD: transport mechanical engineering.

SUBSTANCE: cam-conical differential comprises housing (1), pinion (2) of the differential, carrier (3) with conical satellites (4), two conical differential gears (5), and two braking mechanisms (6). Braking mechanisms (6) are composed of two cylinders (7) and (8). One face of cylinders (7) and (8) has three expansion cams (9), and the other face is flat. Three stop projections (10) are made over periphery of the cylinders of braking mechanisms (6). The cylinders arrest angular rotation and are arranged at an angle of 120° over the periphery of the cylinder. Cylinder (7) of each braking mechanism (6) is rigidly connected with housing (1) of the differential. The smooth face of second cylinder (8) is provided with friction coating (11) that slides over the rim of the differential gear. The expansion cams of the cylinders face each other.

EFFECT: expanded functional capabilities.

2 dwg

FIELD: mechanical engineering; road vehicles.

SUBSTANCE: propose antilock system contains control device, remote controlled engine, transmission with driving wheels including clutch, gearbox, propeller shaft, final and differential drives, and vehicle wheels furnished with tachometers. Transmission contains at least two pairs of driving wheels. Gearbox is remote controlled by control device. Interaxle differential is connected to gearbox. Final and differential drives of all driving pairs of wheels remote controlled by control device are connected to interaxle differential, and steerable pairs of wheels are furnished with wheel angular position pickup connected to control device. Control device is made for setting additional pairs of wheels into active state in case of slipping or locking of one of wheels belonging to active pair.

EFFECT: possibility of regeneration of braking energy, increased cross-country capacity of vehicle, possibility of changing over of driving pairs of wheels of vehicle.

1 dwg

FIELD: transport engineering.

SUBSTANCE: proposed wheel has rim of regular shape and center of rotation. To drive the wheel, planetary reduction gear is fitted in wheel rim whose drive gear is planet pinion installed on driving "floating shaft whose axis, taking weight of vehicle applied to wheel, executes complex movement relative to axis of wheel rotation making it possible to: 1) spread projections of axis of rotation (being simultaneously point/line of support) of wheel and point of application of vehicle weight P to wheel on horizontal surface by some distance L; 2) change position of projection of point P on vertical; plane by some height h and provide constantly acting "canting" torque PL on wheel creating effect of eccentric wheel at wheel circumference remaining unchanged and eliminating cyclic loads.

EFFECT: improved cross-country capacity of vehicle, its steerability, efficiency of wheeled propulsor, simplified design.

1 dwg

FIELD: transport mechanical engineering.

SUBSTANCE: differential comprises housing (1) with spider (2) and satellites (3), differential gears (4) and (5), locking hydraulic clutch, planet gear, and control system. The locking hydraulic clutch has housing (6) provided with driving friction disks (7) and driven friction disks (8) connected with housing (1). The control system comprises control unit (14), electric motor (15), pickups (16) of angular velocity, pickups (17) of torque, pickups (18) of linear velocity, and pickups (19) of angle of rotation of the steering wheel. The planet gear has carrier (12) provided with two rows of satellites (10) and (11), solar gear (13), and epicycloid gear (9). Solar gear (13) is connected with one of the differential gears (9), carrier (12) is connected with electric motor (15), and epicycloid gear (9) is connected with housing (6).

EFFECT: enhanced efficiency.

1 dwg

FIELD: the invention refers to transport machinery.

SUBSTANCE: latching differential has a differential gear 4, a blocker and a control device. The control device has a scheme of measuring and comparison and sensors of a wheels angular speed in the shape of tachometers 11 and 12, kinematically connected with half-axles 9 and 10. The scheme of measuring and comparison includes differential links 13 and 14 and summing units 15 and 16 of angular accelerations, and an electro-chain of connection to a servo-motor 22 has intensifiers 19 and 20 and a relay of time 21. Differential links 13 and 14 are electrically connected with the sensors of wheels angular speeds. The differential realizes automatic blocking only at skidding of any driving wheel and does not react to other exterior disturbing influences. The control device works on the principle of comparison of an angular speeding up of a skidding wheel with given critical meaning equal to maximum possible speeding up at which skidding is still impossible.

EFFECT: decreasing of dynamic loads on transmission and drive and increasing reliability and longevity of a vehicle.

1 dwg

FIELD: transport engineering; automobiles, tractors, diesel locomotives.

SUBSTANCE: proposed vehicle stepless transmission contains final drive, differential 4 and step-up drive, brake device 13, overrunning clutch 21, damper 22 and regulator 14. Driven gear 3 of final drive is rigidly engaged with case of differential 4. Differential gears 6, 8 are engaged with driven shafts 7, 9. Shaft 7 transmits torque to drive wheels (tracks, screw, etc). Shaft 9 sets brake device 13 into motion through step-up drive. Overrunning clutch 21 and damper 22 are fitted on shaft of brake device 13.

EFFECT: reduced losses of torque, prevention of shock loads.

2 cl, 1 dwg

FIELD: transport engineering; transmissions of wheeled vehicles.

SUBSTANCE: proposed differential lock control system contains fluid medium supply source with reducing 7, three-position distributor 11, two-chamber cylinder consisting of control space A of lock-up clutch 4 formed by its housing and movable partition 34, and additional diaphragm chamber 6 having its control space Б arranged coaxially and in series relative to control space of lock-up clutch 4. Movable partition 34 is connected with pressure disk 29 by means of rod 30 rigidly connected by one end with pressure disk 29. Rod 30 interacts with diaphragm 32 of additional diaphragm chamber 6, and it passes in its middle part through central part of movable partition 34, being rigidly connected with support plate 33 interacting with partition 34. Space Б of additional diaphragm chamber 6 communicates with three-position distributor 11 selectively communicating said spaces with drain main line 14 and reducing regulated valve 7.

EFFECT: increased capacity owing to automatic reduction of locking at cornering of vehicle and decreased skidding of leading wheel.

2 dwg

Final drive // 2247038

FIELD: transport engineering.

SUBSTANCE: proposed final drive contains housing with oil reservoir, driven bevel gear and driving bevel gear with front and rear taper bearings whose outer races are press-fitted in bearing cup, and oil collecting pocket. Holes to let oil in and out are made in housing and bearing cup. Plate-type oil slinger with hole in central part is installed in cup between bearings. Diameter of slinger hole is less than inner diameter of front bearing outer race.

EFFECT: improved efficiency of lubrication of bearing of final drive driving gear.

FIELD: transport engineering; automobiles, tractors, diesel locomotives.

SUBSTANCE: proposed vehicle stepless transmission contains final drive, differential 4 and step-up drive, brake device 13, overrunning clutch 21, damper 22 and regulator 14. Driven gear 3 of final drive is rigidly engaged with case of differential 4. Differential gears 6, 8 are engaged with driven shafts 7, 9. Shaft 7 transmits torque to drive wheels (tracks, screw, etc). Shaft 9 sets brake device 13 into motion through step-up drive. Overrunning clutch 21 and damper 22 are fitted on shaft of brake device 13.

EFFECT: reduced losses of torque, prevention of shock loads.

2 cl, 1 dwg

FIELD: the invention refers to transport machinery.

SUBSTANCE: latching differential has a differential gear 4, a blocker and a control device. The control device has a scheme of measuring and comparison and sensors of a wheels angular speed in the shape of tachometers 11 and 12, kinematically connected with half-axles 9 and 10. The scheme of measuring and comparison includes differential links 13 and 14 and summing units 15 and 16 of angular accelerations, and an electro-chain of connection to a servo-motor 22 has intensifiers 19 and 20 and a relay of time 21. Differential links 13 and 14 are electrically connected with the sensors of wheels angular speeds. The differential realizes automatic blocking only at skidding of any driving wheel and does not react to other exterior disturbing influences. The control device works on the principle of comparison of an angular speeding up of a skidding wheel with given critical meaning equal to maximum possible speeding up at which skidding is still impossible.

EFFECT: decreasing of dynamic loads on transmission and drive and increasing reliability and longevity of a vehicle.

1 dwg

FIELD: transport mechanical engineering.

SUBSTANCE: differential comprises housing (1) with spider (2) and satellites (3), differential gears (4) and (5), locking hydraulic clutch, planet gear, and control system. The locking hydraulic clutch has housing (6) provided with driving friction disks (7) and driven friction disks (8) connected with housing (1). The control system comprises control unit (14), electric motor (15), pickups (16) of angular velocity, pickups (17) of torque, pickups (18) of linear velocity, and pickups (19) of angle of rotation of the steering wheel. The planet gear has carrier (12) provided with two rows of satellites (10) and (11), solar gear (13), and epicycloid gear (9). Solar gear (13) is connected with one of the differential gears (9), carrier (12) is connected with electric motor (15), and epicycloid gear (9) is connected with housing (6).

EFFECT: enhanced efficiency.

1 dwg

FIELD: transport engineering.

SUBSTANCE: proposed wheel has rim of regular shape and center of rotation. To drive the wheel, planetary reduction gear is fitted in wheel rim whose drive gear is planet pinion installed on driving "floating shaft whose axis, taking weight of vehicle applied to wheel, executes complex movement relative to axis of wheel rotation making it possible to: 1) spread projections of axis of rotation (being simultaneously point/line of support) of wheel and point of application of vehicle weight P to wheel on horizontal surface by some distance L; 2) change position of projection of point P on vertical; plane by some height h and provide constantly acting "canting" torque PL on wheel creating effect of eccentric wheel at wheel circumference remaining unchanged and eliminating cyclic loads.

EFFECT: improved cross-country capacity of vehicle, its steerability, efficiency of wheeled propulsor, simplified design.

1 dwg

FIELD: mechanical engineering; road vehicles.

SUBSTANCE: propose antilock system contains control device, remote controlled engine, transmission with driving wheels including clutch, gearbox, propeller shaft, final and differential drives, and vehicle wheels furnished with tachometers. Transmission contains at least two pairs of driving wheels. Gearbox is remote controlled by control device. Interaxle differential is connected to gearbox. Final and differential drives of all driving pairs of wheels remote controlled by control device are connected to interaxle differential, and steerable pairs of wheels are furnished with wheel angular position pickup connected to control device. Control device is made for setting additional pairs of wheels into active state in case of slipping or locking of one of wheels belonging to active pair.

EFFECT: possibility of regeneration of braking energy, increased cross-country capacity of vehicle, possibility of changing over of driving pairs of wheels of vehicle.

1 dwg

FIELD: transport mechanical engineering.

SUBSTANCE: cam-conical differential comprises housing (1), pinion (2) of the differential, carrier (3) with conical satellites (4), two conical differential gears (5), and two braking mechanisms (6). Braking mechanisms (6) are composed of two cylinders (7) and (8). One face of cylinders (7) and (8) has three expansion cams (9), and the other face is flat. Three stop projections (10) are made over periphery of the cylinders of braking mechanisms (6). The cylinders arrest angular rotation and are arranged at an angle of 120° over the periphery of the cylinder. Cylinder (7) of each braking mechanism (6) is rigidly connected with housing (1) of the differential. The smooth face of second cylinder (8) is provided with friction coating (11) that slides over the rim of the differential gear. The expansion cams of the cylinders face each other.

EFFECT: expanded functional capabilities.

2 dwg

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