SUBSTANCE: invention relates to automotive industry and may be used in agricultural machinery and trackless machines. Proposed vehicle comprises body 2 to house two-stage planetary final drive 2 coupled via gearshift mechanism 3 with engine 4. Said planetary final drive 2 comprises two planetary trains 5. Planetary train 5 consists of carrier 6 with pinions 7 engaged with side brake 8, sun gear 9 and ring gear 11. Clutches of sun and ring gears locking and sun gear brakes are composed of inertial synchromesh units, each being engaged with sun gear of appropriate planetary train to be locked with ring gear or final drive housing.
EFFECT: higher reliability, reduced power loss in turns.
The invention relates to a tractor and transport machinery, and may find application in agricultural production and trackless vehicles.
Known vehicle containing the drive from the motor and mechanism for change-speed planetary gear mechanism rotate with the on-Board brakes, wheel suspension system (see kN. "Argo Avenger & Avenger EFI", Parts Manual Ontario Drive &Gear Limited, Printed in Canada, c.1-12).
The disadvantage of the vehicle are large mechanical loss when turning.
Also known vehicle containing the drive from the engine and the mechanism of change of the two-stage planetary gear mechanism rotate with the friction lock solar and epicycle gears, brakes, sun gears and side brakes, crawler undercarriage system (see kN. "Caterpillar heavy carrier Prime mover GT-T and truck tractor GT-TS, instruction manual, edited Goryacheva V.T., Order of the red banner military publishing house of the Ministry of defense of the USSR, M., 1971, p.34-46 (prototype)).
The disadvantage of the vehicle are large power loss when turning and the complexity of the design.
The objective of the invention is to reduce power loss when turning. This is achieved by two-stage planetary rotation mechanism includes an inertial synchronizers, each of whom shall meet the movable splined connection with the sun gear of the planetary range and interoperability with conical friction surfaces and toothed crowns of the projections of the casing and epicycle gear.
1 shows a vehicle with crawler chassis with two-stage planetary rotation mechanism and the mechanism for change-speed driven from the engine, left side view; figure 2 - two-stage planetary rotation mechanism, the view from the top in the section.
The vehicle includes a housing 1 within which is located a two-stage planetary rotation mechanism 2 connected through the mechanism of the change-speed 3 engine 4.
Two-stage planetary rotation mechanism includes two planetary series 5, each of which consists of a carrier 6 are installed on the satellites 7 associated with the onboard tape brake 8, the sun gear 9 having a slotted movable connection with the inertial synchronizer 10, epicycle gear 11 containing ring gear 12, the outer face of which is made in the form of a conical friction surface and driven in rotation conic pair 13. Two-stage planetary rotation mechanism 2 is located in its own housing 14 with the inner side walls of the protrusions in the form of gear rims 15, the outer face of which is made conical friction surfaces for engagement with the inertial synchronizer 10. On the outside of the housing 1 a side of the transmission 16, associated with the drive wheels 17.
Rover works the et as follows.
Torque from the motor 4 through the mechanism of the change of the transmission 3 is transmitted to the bevel pair 13 and the associated epicycle gear 11, interlocked by means of inertial synchronizer 10 with sun gears 9, with 7 satellites, not being able to rotate, to transmit power from the epicycle gear 11 and the sun gear 9, vadilal 6, transmitting torque through airborne transmission 16 and the drive wheels 17, providing rectilinear motion of the Rover.
Moving inertial synchronizer 10 in the locked position the sun gear 9 with the housing 14 stops them, reducing the frequency of rotation of the carrier and increasing the torque on them, provides slow-motion rectilinear motion. Moving only one inertial synchronizer 10 in the locked position the sun gear 9 with the housing 14 to rotate the vehicle in the direction displaced inertial synchronizer 10 with a fixed radius.
The neutral position of the inertial synchronizer 10 is not providing torque transmission planetary series 5, making it impossible independent movement of the vehicle. The neutral position of one of the inertial synchronizer 10 causes uncontrolled turning of the vehicle with a radius-dependent resistance forces external to the food.
In the neutral position of one of the inertial synchronizer 10 and enabling the tape brake 8 of the same side is rotating in the same direction with a radius that depends on the friction band brake 8, but not less than the gauge of the vehicle.
This ATV has a simple construction, reliable in operation and provides less power loss when turning.
In order to reduce power losses during rotation, the friction lock solar and epicycle gears and brake the sun gear made in the form of inertia of synchronizers, each of which is associated with the sun gears of the respective planetary series and has the possibility of blocking with epicycle gear or body.
The vehicle containing the drive from the engine and the mechanism of change of the two-stage planetary gear mechanism rotate with the friction lock solar and epicycle gears and brakes sun gears and brake, tracked or wheeled chassis system, characterized in that the friction lock solar and epicycle gears and brake the sun gear made in the form of inertia of synchronizers, each of which is associated with the sun gears of the respective planetary series and has the possibility of blocking with epicycle gear Il is with the case of the rotation mechanism.
FIELD: machine building.
SUBSTANCE: variator comprises input shaft whereto external torque is applied, set of driven gears, variable crank, variable input link, unidirectional couplings, set of crankshafts and set of working links. Driven gears are arranged around input shaft at one radius, each being shifted relative to the other one through definite angle. Variable crank is arranged in variable input element to vary radius of rotation. Variable input link is coupled with input shaft. Unidirectional couplings are fitted on inner surface on every gear to run in one direction. Crankshafts are arranged inside said unidirectional couplings to turn in housing. One end of every working link is connected with variable crank while opposite end is engaged with each of crankshafts to run therewith.
EFFECT: decreased overall dimensions, longer life.
7 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: rotary movement transfer mechanism includes a housing, in which an eccentric drive shaft, a driven shaft and intermediate link located on the drive shaft are installed with possibility of being rotated. The mechanism housing is provided with a central gear with satellites and free-wheel mechanisms with inlet and outlet links. Central gear is rigidly attached to the intermediate link. The inlet link of each free-wheel mechanism is connected to the corresponding satellite, and the outlet link of each free-wheel mechanism is connected to a hinge installed on the mechanism housing. Rotary movement is transferred to the outlet shaft through kinematic connection to the intermediate link.
EFFECT: improving reliability and durability of rotary movement transfer mechanism and increasing the mechanism efficiency.
8 cl, 5 dwg
SUBSTANCE: gearbox comprises planetary step-down helical gearbox and automatic system of shifting from 1st to 2nd gear. Said planetary reduction gear consists of drive shaft 1 supporting crown gear 2 with drive disc secured thereat, sun gear 3 running on driven shaft 4 with carrier 5 rigidly secured thereat with axles 6 and pinions 7 engaged with crown and sun gears. Automatic gear shifting system consists of friction coupling with its drive discs 8 coupled via splines with crown gear and driven discs coupled via case 10 and disc with pinion axles and carrier and with driven shaft of centrifugal weights 11 with springs 12, and automatic sun gear control system. Said automatic sun gear control system comprises braking element consisting of shoe drum brake mechanism. Coupling case and axles of pinions are rigidly interconnected. Crown gear on engine side has outer flange 26 for left drive disc to thrusts there against. Slave arms of centrifugal weights with sleeves at their ends are pressed via working springs to crown gear for compression of coupling discs.
EFFECT: higher reliability.
SUBSTANCE: gearbox comprises planetary step-down helical gearbox and automatic system of shifting from 1st to 2nd gear. Said planetary reduction gear consists of drive shaft 1 supporting crown gear 2 with drive disc secured thereat, sun gear 3 running on driven shaft 4 with carrier 5 rigidly secured thereat with axles 6 and pinions 7 engaged with crown and sun gears. Automatic gear shifting system consists of friction coupling with its drive discs 8 coupled via splines with crown gear and driven discs coupled via case 10 and disc with pinion axles and carrier and with driven shaft of centrifugal weights 11 with springs 12, and automatic sun gear control system. Said automatic sun gear control system comprises braking element consisting of body 14 rigidly fitted at sun gear hub and splines of drive discs 15, driven discs 16, throw-in ring 18 coupled via two-arm levers 19, 20 and link 22 with crown gear. Cases of coupling 10, disc 26 and axles of pinions 6 and carrier are rigidly interconnected. Extreme left drive disc of coupling 27 is bolted to crown gear. Slave arms of centrifugal weights with sleeves at their ends are pressed via working springs to crown gear for compression of coupling discs.
EFFECT: higher reliability.
SUBSTANCE: proposed gearbox comprises input and output shafts, three differentials and seven control elements. Every said differential comprises pinion cage, differential pinions, sun and ring gears. Two differentials make main planetary gearbox with sun gears engaged with ring gear of third differential. Pinion cage and sun gear of the latter are engaged via friction couplings with input shaft to make planetary reversing divider with accelerating gearing.
EFFECT: higher performances and efficiency.
SUBSTANCE: gearbox comprises cylindrical skew planetary reduction gear, multidisc friction coupling, centrifugal weights on coupling casing, and sun gear state ACS. Crown gear of cylindrical skew planetary reduction gear is fitted on drive shaft splines, sun gear moves unlimited while pinion frame with planet gears and their axles are rigidly fixed on driven shaft. Drive discs of aforesaid multidisc friction coupling is splined with crown gear while drive discs of said coupling are engaged via coupling right side with pinion frame. Centrifugal discs may move apart to contract, via working springs, aforesaid discs. Aforesaid sun gear state ACS comprises minor brake made up of pulley rigidly fitted on sun gear hub and having its braking belt coupled via tie-rids, bell cranks and spring, with crown gear and driver's control lever.
EFFECT: higher efficiency and reliability.
FIELD: machine building.
SUBSTANCE: invention refers to multi-speed transmission with double coupling. Transmission is connected to the inlet element of the motor and has outlet distribution mechanism, first and second inlet transmission shafts, first and second intermediate shafts, multiple coplanar set of gears and multiple devices transmitting torsion torque. First and second inlet transmission shafts are supported so that they could rotate in the transmission body with combination of ball and needle bearings. First and second inlet transmission shafts are supported so that they could rotate in the transmission body with multiple support bearings. The devices transmitting the torsion torque include many synchronizing units and double coupling unit. Transmission ensures at least one advantage of back run and many advantages of fore run between inlet and outlet elements.
EFFECT: improvement of multi-stage transmission arrangement.
23 cl, 2 dwg
SUBSTANCE: hybrid transmission comprises two planetary gear sets. Planetary gear set elements are coupled with drive engine via two all-purpose electrical machines and, via output links, with torque. Controlled friction couplings couple links of planetary gear sets with housing and between them. First universal electrical machine engages with crown gear of the first planetary gear set and, via first controlled coupling, with input shaft while, via second controlled coupling, it is engaged with pinion frame of secondary planetary gear set. Second planetary gear set crown gear is engaged via third controlled coupling with housing. Second all-purpose electrical machine is directly engaged with sun gear of both planetary gear sets and, via fourth controlled coupling, with housing.
EFFECT: improved kinematics.
FIELD: machine building.
SUBSTANCE: mechanism consists of oscillating and driven shafts, of variator shaft kinematically tied with oscillating shaft, and of pair of overrunning gear clutches with driving and driven half-clutches. The driving half-clutches are kinematically coupled with the oscillating shaft and rotate multi-directionally; they are made in form of central gears with rim engaging satellites installed on the driven half-clutches; their axles are spring-loaded to stops on the driven half-clutches. Also, the driven half-clutches are attached to the driven shaft. On the driven shaft there is mounted a slider with holders of the satellite axles. The mechanism also consists of a device for release of the satellite axles from the stops at overrunning. The slider is driven form a cam variator mounted on an input shaft.
EFFECT: raised efficiency of oscillation rectifier.
SUBSTANCE: double-row planetary train comprises friction coupling sun gears 3, 10 of the first and second planetary rows and overrunning coupling controlled by screw pressure device operating when moment of resistance to shaft rotation increases to magnitudes that cause engine overloads initiating its failure.
EFFECT: increased gear ratio with increasing torque resistance on drive shaft and reduced drive shaft rpm.
SUBSTANCE: invention relates to machine building, particularly, to running gear of self-propelled mine machinery, namely to mining crawler machinery. Proposed crawler comprises caterpillar frame 1 with axles 2 for mounting wheels 3 thereon. Tensioning axles 4 with tensioning wheels 5 are arranged at the front of said caterpillar frames 4 while drive wheels are fitted on driver shafts 7. Treads 8 are fitted on tensioning and road wheels. Case 10 of complex seal 9 is secured to caterpillar frame 1. Said complex seal comprises tree-step sealing of friction assemblies: labyrinth seal 14, static seal composed of rubber ring 15 and end contact seal.
EFFECT: longer life, protected bearing assemblies.
SUBSTANCE: invention relates to railway vehicles. Adjustable gage bogie comprises chassis, one carriage, drive cylinder transverse displacement of said carriage and connection hose. Chassis incorporates built-in hose. Carriage is connected with chassis for relative transverse displacement and is provided with carriage built-in hose. Connection hose is arranged at joint between carriage built-in hose and chassis built-in hose. Method of connection bogie hoses comprises mounting hose connector at joint between carriage built-in hose and chassis built-in hose. Besides, it comprises connecting carriage built-in hose to one side of hose connector and chassis built-in hose to opposite side of hose connector.
EFFECT: higher reliability owing to ruled out damage of hoses.
25 cl, 6 dwg
SUBSTANCE: running gear 1 is arranged on tank body armored board 2 and comprises caterpillar 4. The latter runs over drive and guide wheels 5, 6, road wheels 7, front road wheel 8, rear road wheel 9 with torsion suspensions. Caterpillar upper section between drive wheel 5 and guide wheel 6 is shifted below said wheels in space between front road wheel 8 and rear road wheel 9. Said upper section is displaced by means of extra spring-loaded front and rear wheels 11, 12 provided with springs 13, 14. Armored board 2 is furnished with box-like ledge 16 communicated with inner useful volume of the body behind-the-armor space. Armored box-like ledge 16 has operating clearances on different sides.
EFFECT: possibility to vary caterpillar path, increased inner useful volume body behind-the-armor space.
SUBSTANCE: invention relates to track idlers of harvester crawler trucks, for example self-propelled rice-and-grain harvesters and fodder choppers TRACK IDLER OF harvester crawler truck comprises wheel (1), rotating on two bearings (2) with stationary axle (3) fixed in rests (4) having guides (6) with rollers (10). Vertical play of wheel (1) is limited by planks (7) pressed from below to lower flanges of channel beams (8) of crawler truck frame by springs (9). On each guide (6) from the side of channel beam (8) of crawler truck frame, roller (10) is installed which rotates and rests on lower flange of channel beam. Under action of tensioner, wheel (1) moves on rollers (10) over lower flanges of channel beam (8) lower flanges of channel beam.
EFFECT: invention is aimed at lowering force for moving wheel guided over flanges of channel beams of crawler truck frame, as well as at reducing wear of coupled parts - guides and flanges of channel beams of crawler truck frame.
SUBSTANCE: caterpillar running gear comprises lower frame with carrying roller and central trunnion, caterpillars and running gear drive reduction gear. Note here that lower frame consists of two parts and is furnished with joint straps arranged in pairs on the frame opposite surfaces. Pairs of straps and both parts of the platform are bolted together. Caterpillar frames are bolted to lower frame. Running gear reduction gears are aligned on caterpillar frames at distance of 1/4 of lower frame width while carrying roller diameter-to-lower frame width makes 0.8-0.9.
EFFECT: higher stability, simplified servicing.
FIELD: machine building.
SUBSTANCE: proposed chassis comprises rims running in one direction and provided with outer gearing wheels, and tires-tracks. Inner line of rims is fitted on hollow shafts mounted on shaft aligned therewith to make mounts for outer line of rims. Inner line rims are connected in pairs with joining tire-track starting from the first rim is seen along chassis motion. Outer line pairwise connection of rims with joining tire-track is shifted relative to inner line connection of rims.
EFFECT: higher floatation.
6 cl, 3 dwg
SUBSTANCE: invention relates to machine building. Proposed truck comprises track running over sprocket fitted on hub, twin front and rear support-and-tension rollers coupled via front and rear equalisers with spring and articulated with equaliser beam. articulated with equaliser beam. Equaliser beam is equipped with spring guide and beam lever pivot pin is attached by rocker arm to tractor arm. Support-and-tension rollers may displace in lengthwise-vertical plane and allow varying rollers inclination to equaliser beam by stop screw of rear equaliser.
EFFECT: simplified design.
6 cl, 9 dwg
SUBSTANCE: invention relates to machine building. Caterpillar mover comprises caterpillar chain, track rubber rollers fitted on tank torsion suspension crank lever ends, guide roller running on crank axle, caterpillar track tensioner, drive sprocket fitted on transmission output shaft, shock-absorbers and retainers limiting torsion suspension crank travel. Track rubber rollers features two diameters. First roller, if seen from guide roller, and the next odd track rollers feature larger diameter than even track rollers. Difference in diameters makes 1.1-2.0 of crank travel. Caterpillar track top flight thrusts on larger diameter track rollers. Smaller diameter track rollers do not touch tract top flight even at maximum travel torsion suspension. Guide roller crank arm makes 0.2-0.4 of guide roller diameter. Crank proper is equipped with shock absorber and travel limiters to allow guide roller spontaneous up-down travel in plane perpendicular to caterpillar track support surface. Crank end is directed downward in initial position while, in end position, it is directed toward track rubber rollers.
EFFECT: higher cross-country capacity.
2 cl, 2 dwg
FIELD: transport machinery.
SUBSTANCE: removable tractor crawler unit includes a knock-down driving wheel, posts, beams with track rollers and two guide wheels. The driving wheel of the crawler unit includes 2 wheel hubs with taper holes and 4 V-shaped adapters for fixing the driving wheel to the tractor semi-axle.
EFFECT: increase in grip features of a tractor crawler unit.
SUBSTANCE: invention refers to transportation equipment. Multi-purpose tracked undercarriage on single platform includes thin-armoured housing with tree compartments. Movement control compartment includes movement control members, instrumentation, basic armament instruments and units, surveillance devices and three seats in the front part of compartment of driver mechanic, captain and operator, cabinets of main armament equipment units and one seat for operator in the compartment rear part. Middle compartment is provided with main armament equipment. Sealed engine compartment located in the aft part of undercarriage. Engine compartment include cruise engine with high speed output shaft, mechanical transmission, two on-board reduction gears, cooling system, reduction gear of drive of reserve generators, gas-turbine engine with traction alternators. Carriage part includes caterpillar drive, hydraulic shock absorbers, cushioning deactivation mechanism and caterpillar tension mechanism. In housing between middle compartment and engine compartment there formed is additional intermediate compartment throughout the width of the undercarriage with reduction gear for reserve alternators and internal fuel tanks. Cruise internal combustion engine is located perpendicular to undercarriage longitudinal axis. High speed output shaft is kinematically connected to input reduction gear having additional power takeoff shaft passing through transverse engine compartment bulkhead to intermediate compartment for connection of reserve alternators. Fuel system consists of internal and external tanks as per in-series fuel depletion scheme.
EFFECT: unification of tracked undercarriage on single platform.
6 cl, 11 dwg
FIELD: transport engineering; crawler carriers.
SUBSTANCE: proposed crawler carrier contains engine and transmission compartment and control cabin with seats for crew members in front part of carrier, load-carrying platform arranged after cabin and crawler propulsor including seven pairs of torsion suspensions of track rollers and worm-type track adjuster. Carrier is made to provided higher cross country capacity owing to distribution of full-weight loads under suspension rollers at ratio (1.25-1.45):(1.25-1.45) for first and last pairs of track rollers and where 1/7 th of total load on pair of track rollers is taken for 1.0. Remaining load is uniformly distributed between the rest of five middle pairs of track rollers, with subsequent provision of preliminary static tension force by track adjuster at level of traction force on slope with sift ground.
EFFECT: improved stability of track in guide at increased cross country capacity.