Self-blocking differential of vehicle

FIELD: mechanic.

SUBSTANCE: the self-blocking differential contains a power-driven shell with lids, in which half shaft elements are placed coaxially and connected with the half shaft. The half shaft elements, on their upper surface, have spiral channels running in a direction opposite the spiral, odd number of rolling elements (balls), one closed channel containing a working groove open for inserting ball segments into the spiral channels of the half shaft elements; a longitudinal return channel with dimensions equal to the ball diameter, connected by intermediate channels made in the lids of the power-driven shell. The outside surface of the intermediate channels in the longitudinal section has a radius equal to 1.25 diameters of the ball; and their wall, at the outlet to the zone of connection to the return channel, contains a straight section. In the lids, a slot with dimensions equal to those of the working groove is made for placement of spiral channels of the half shaft elements in the intermediate channels area.

EFFECT: increased reliability of self-blocking differential.

4 cl, 2 dwg

 

The invention relates to vehicles and can be used in differential-drive vehicles made with automatic wheel lock.

Known self-locking differential of the vehicle selected by the applicant as a prototype containing the drive housing with lids, which coaxially to each other posted by related axes half-shaft elements having on the outer surface of the helical grooves of the opposite direction of the spiral, an odd number of rolling elements in the form of balls, filling chain, made in the drive housing with covers at least one closed channel. A closed channel is made in the longitudinal cross section is rectangular with rounded outside corners, square inside corners and contains opened for dipping segments of the balls in the helical grooves of half-shaft elements working groove and longitudinal return channel, United transient channels made in the cover of the drive enclosure. The cross-section of the longitudinal recurrent and transient channels made according to the size of the diameter of the balls. In longitudinal section the outer side of the transition channels contains a straight line segment, and rounded outer corners (see patent on PM No. of 52,778, from 01.12.05., publ. 27.04.06, UK 17/20).

The disadvantages of protot the PA should include the unreliability of design, regarding the implementation of the rectangular closed channel. Direct internal corners of a rectangular closed channel during movement of the chain balls of the transition channels in the return channel or into the working groove lead to inhibition. This causes increased friction balls: with the external side of the closed channel to the bottom of transient channels and walls in places of coupling caps and housing (in the connection zone of transition channels return channel), and with the inner side of the closed channel in the corners of the partitions between the return channel and the working groove, which leads to wear of the balls, abrasion of the walls of transient channels, causing lengthening of the chains of balls, and the emergence of the gap between the balls. In addition, when the output of the bypass channels in the cavity between the groove and the helical grooves balls hit into the end of the half-shafts elements that lead to the deterioration and destruction of the differential mechanism as a whole.

The technical objective of the proposed solutions is to increase the reliability of conventional prefilled auto-disable differential.

The problem is solved due to the fact that in the known cambiocorsa the differential of the vehicle containing the drive housing with lids, which coaxially to each other posted by related axes half-shaft elements having on the outer surface of the screw is anawiki opposite direction of the spiral, an odd number of rolling elements in the form of balls, filling chain is made in the drive housing with covers at least one closed channel containing opened for dipping segments of the balls in the helical grooves of half-shaft elements working the groove made in the size of the ball diameter longitudinal return channel, United transient channels made in the lid of the drive housing, which according to the invention the outer side of the transition channels in longitudinal section is made with a radius of 1.25 times the diameter of the ball, and the wall of their output in the connection zone with the return channel contains a straight line segment, and the caps made a groove in the size of the working grooves and for the location of the screw grooves of half-shaft elements in the zone of transition channels.

While grooves in the covers are made of a width not exceeding 0.75 diameter of the ball.

In addition, the housing and cover are made through longitudinal hole Assembly bolts and the ends of the body has fixing pins under the mounting holes drilled at the ends of the covers.

And one of the covers of the case is made with a flange for mounting differential on the vehicle.

The external side of the transition channels in longitudinal section with a radius of 1.25 times the diameter of the ball and the walls of their output in the AOR is in connection with the return channel contains a straight line segment, provides smooth, without braking, the promotion of a chain of balls of transient channels in the return channel, and execution of the grooves in the covers in the size of the working groove and of a width not exceeding 0.75 diameter of the ball provides longer half-shafts elements with helical grooves and hit balls directly from the transient channels in the helical grooves of half-shaft elements with subsequent release into the working groove of the casing, which eliminates the wear of the elements of the differential and increase its reliability, and also provides an increase in the numbers of balls are engaged, to transmit rotating torque, which increases the coefficient block.

In addition, performance on the housing and the cover through the longitudinal hole Assembly bolts, and at the end of the body positioning pins under the mounting holes drilled at the ends of the caps, greatly simplifies and facilitates the differential Assembly.

Conducted patent studies have not found a similar technical solutions that allows to draw a conclusion about the novelty and inventive step of the claimed technical solution.

The domestic industry has all the resources (materials, equipment and technology)required to manufacture the inventive conventional prefilled auto-disable differential and a wide IP is the use of it in vehicles.

The invention is illustrated by drawings, where:

figure 1 - self-locking differential in longitudinal section;

figure 2 - view of the end of the body.

A limited-slip differential vehicle comprises a drive housing 1 with caps 2 and 3. In the drive housing 1 is placed coaxially with each other associated with the axes 4 and 5 half-shaft elements 6 and 7, having on the outer surface of helical grooves 8 and 9 of the opposite direction of the spiral. In the drive housing 1 with caps 2 and 3 are met, the at least one closed channel 10 for the rolling bodies in the form of balls 11, filling his chain of an odd number of balls 11. In the proposed example, conventional prefilled auto-disable differential, designed to Gorky and the Ulyanovsk automobile plants, made six of closed channels 10, and the diameter of the ball 11 is 20 mm Each closed channel 10 contains opened for dipping segments of the balls 11 in the screw grooves 8 and 9 half-shafts elements 6 and 7, the working groove 12, is made in the size of the diameter of the ball 11 longitudinal return channel 13, United transient channels 14 made in the cover 23 of the drive housing 1. The outer side 15 of transient channels 14 in the longitudinal cross-sectional radius 1.25 times the diameter of the ball 11 and 25 mm, and wall them (transient channels) output in the connection zone with return is the anal 13 contains a straight line segment 16. In the caps 2 and 3 is made a groove 17 in the size of the working grooves 12 for the location of the helical grooves 8 and 9 half-shafts elements 6 and 7 in the zone of transition channels 14. Grooves 17 in the caps 2 and 3 are made of a width not exceeding 0.75 diameter of the ball 11, and are 13-15 mm. as a result, the number of balls 11, the transmitting torque to the wheels, one of the chain increases by two ball 11 and is, for example, four ball 11 and six. And when you consider that the number of chains of balls 11 in the differential of six (the number of closed channels 10), the number of balls 11, the transmitting torque to the wheels is increased by twelve pieces, and is not 24, and 36 balls 11. On the drive housing 1 and the lid 2 and 3 are longitudinal apertures 18 and 19 under the Assembly bolts 20, and the ends of the drive housing 1 a of the fixing pins 21 under mounting holes 22, are made at the ends of the caps 2 and 3, which greatly simplifies and facilitates Assembly of the differential. In addition, one of the covers 2 or 3 of the drive housing 1 is made with a flange 23 for mounting differential on the vehicle, which significantly reduces the labor required differential.

A limited-slip differential vehicle operates as follows. In straight-line motion of the vehicle at a good Dor the GE rotation from the drive housing 1 through the balls 11, contact with the helical grooves 8 and 9 half-shafts elements 6 and 7, is transmitted to the shafts 4 and 5 of the vehicle and then to the wheels, providing them with the same angular velocity. When turning the vehicle or contact one of the leading wheels on the bumps in the road (a hole or protuberance) of the wheel, and hence the shafts 4 and 5 with pausetime elements 6 and 7 tend to rotate at different angular velocities. While the balls 11 begin to move in a closed channel 10 without interfering with the turning of the vehicle. An odd number of balls 11 in the closed channel 10 ensures free movement of the chain of balls 11 unchanging, minimum clearance between the balls 11. The balls 11 in the transition channels 14 are moved without braking with minimal friction. In the coupling zone of transition 14 and return channels 13 balls 11, passing straight section 16 of the transition channel 14 made in the size of the return channel 13, smoothly without podklinivanija included in the return channel 13. In the transition zone of the balls 11 of the transition channels 14 in the cavity between the screw 8 and 9 and work 12 grooves, the balls 11 are initially freely fall into the spiral grooves 8 or 9, which, while rotating smoothly introduce the balls 11 in the working grooves 12 of the differential.

When getting any drive wheel transport the CSO funds on a slippery stretch of road there is a sharp decrease of the clutch wheel with the road. Polovoy item 6 or 7, associated with the wheel that is in good contact with the road, trying to move the ball 11 in the closed channel 10 of the housing 1, causing to rotate the other polovoy element 7 or 6, and through him to the wheel that is on the slippery area. Both wheels start to rotate at the same speed and the vehicle continues to move without slipping.

When the vehicle both forward and backward, the device works perfectly as an ordinary differential classical scheme, does not interfere with the operation of the vehicle. Improved patency in off-road and reliability when driving in bad weather. Increased stability driving in icy conditions, especially on the bends.

Trial offer conventional prefilled auto-disable differential on different models in different climatic conditions showed good results.

1. A limited-slip differential vehicle containing the drive housing with lids, which coaxially to each other posted by related axes half-shaft elements having on the outer surface of the helical grooves of the opposite direction of the spiral, an odd number of rolling elements in the form of balls, filling chain is made in the drive housing with covers at least one closed to the cash, contains opened for dipping segments of the balls in the helical grooves of half-shaft elements working the groove made in the size of the ball diameter longitudinal return channel, United transient channels made in the lid of the drive housing, wherein the outer side of the transition channels in longitudinal section is made with a radius of 1.25 times the diameter of the ball, and the wall of their output in the connection zone with the return channel contains a straight line segment, and the caps made a groove in the size of the working groove and to position the helical grooves of half-shaft elements in the zone of transition channels.

2. A limited-slip differential according to claim 1, characterized in that the grooves in the covers are made of a width not exceeding 0.75 diameter of the ball.

3. A limited-slip differential according to claim 1, characterized in that on the housing and covers are made through longitudinal hole Assembly bolts and the ends of the body has fixing pins under the mounting holes drilled at the ends of the covers.

4. A limited-slip differential according to claim 1, characterized in that one of the lids of the case is made with a flange for mounting differential on the vehicle.



 

Same patents:

FIELD: transport engineering; vehicle transmissions.

SUBSTANCE: invention can be used in differential drives of vehicles with possibility of automatic wheel locking. Proposed self-locking differential of vehicle contains drive case accommodating axle-shaft members coupled with axle shafts and provided on outer surface semi-round in cross section screw grooves of opposite hand of helix, solids of revolution in form of balls filling, in chain, closed channels made in drive case and containing working grooves opened to dip ball segments into screws of axle-shaft members, longitudinal bypass channels and side return channels. Inner part of case consists of three parts. On extreme parts working grooves are made with opposite direction of helix relative to each other and to screw grooves of axle-shaft members. Middle part is made with width not exceeding diameter of balls and is furnished with through axial holes corresponding to size of diameter of balls. Angle of tilting of working and screw grooves to longitudinal axis is 74-76°. Side return channels in longitudinal section are made with sizes steplessly increasing from diameter of ball on ends of channels to 1.5 diameter of ball in central part of channels. Longitudinal bypass channels in cross section are made to size of diameter of ball, and inner side of channels is made at angle of 1-2° to center of bypass channel, with stepless transition in place of connection.

EFFECT: improved reliability and efficiency of locking.

4 cl, 3 dwg

FIELD: automotive industry.

SUBSTANCE: invention can be used in differential drives of wheeled vehicles made for automatic locking of wheels. Proposed self-locking differential of vehicle contains drive case 1 accommodating axle shaft-members 4, 5 arranged coaxially to each other and coupled with axle-shafts 2, 3. Said axle-shaft members are provided with helical grooves 6, 7 on outer surface with opposite hand of helix, solids of revolution in form of balls 8 filling in line at least one closed channel 10 made in drive case. Part of said channel is opened to dip segments of balls into helical grooves. Closed channel 10 is made rectangular in longitudinal section, with rounded off outer angles 12. Cross section of legs of rectangular closed channel is equal to diameter of balls 8. Number of balls in channel is odd.

EFFECT: simplified design of differential, reduced overall dimensions, increased manufacturability, strength and efficiency at self-locking.

4 dwg

FIELD: mechanical engineering; vehicle transmissions.

SUBSTANCE: proposed differential contains case 1, side gears 2, and 3, planet pinions and locking device. Locking devices is made in form of ring shifter 7 connected with drive 8, pushers 10 arranged inside axles 9 of planet pinions, intermediate members and locking members. Differential includes also elastic stop, and spring inserts 17 and 18 placed between case 1 and rear surfaces 20 and 21 of side gears 2 and 3. Grooves are made on end face front surfaces of side gears 2 and 3. Said grooves have wavy profile corresponding to profile of locking members, and number of radial grooves is even.

EFFECT: prevention of failure of differential lock caused by wedging of locking members between side gears, and falling out of locking members at unlocking, provision of stepless row of values of locking coefficient.

5 cl, 6 dwg

FIELD: transport engineering.

SUBSTANCE: invention can be used to increase cross-country capacity and stability of vehicle at braking. Proposed differential lock mechanism contains locking device in form of friction mechanism including two members 1 and 2. Friction mechanism consists of pack of friction disk 3 and steel disks 4, two control pistons 7, air feed head 8 with union 9. Members 1, 2 of clocking device are connected by pairs of gears 10, 11, 12, 13 with axle-shafts 14, 15. Device is furnished additionally with air fed control system consisting of angular velocity pickups 16, 17, electronic control unit 18, electromagnetic control valve 19, relief valve 20, change-over switch 21, connecting air lines and electric wires.

EFFECT: increased cross-country capacity and stability of vehicle.

2 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to methods of control of differential locking of multidrive wheeled vehicles and it can be used at designing of systems to control tractive forces of driving wheels of multidrive vehicles and carrying out investigations of wheeled vehicles. proposed method of control of differential locks comes to locking of differential for definite periods of time at threshold values of mismatching of mechanical parameters of driving wheels intercoupled by said differential and unlocking differential at expiration of definite of time or at achievement of threshold value of steerability index. Unlocking of differentials at achievement of threshold value of steerability index is carried out individually, starting from differential whose locking has greater effect on steerability of wheeled vehicle.

EFFECT: enlarged range of control of traction forces on driving wheels to increase cross-country capacity and traction and speed properties at provision of required steerability of multidrive wheeled vehicles.

1 dwg

Muscular drive // 2270780

FIELD: transport engineering; bicycles.

SUBSTANCE: invention is designed for devices automatically changing gear ratio without interruption of power flow. Proposed drive contains two differentials. Force sensor 5 is installed between input shaft 8 and common input of both differentials, namely power differential 1 and regulating second differential 2. Said force sensor 5 cuts in braking device 4 at rise of load, said braking devices is idling at direct drive and is connected with regulating input of second differential 2. As a result, output gear 21 of second differential 2 starts rotating and self-braking drive 3 releases carrier 25 of power differential 1. Proposed drive automatically changes over from direct drive to drive with changed gear ratio. Moment of changing over can be regulated by tensioner 6 of spring 19 of force sensor.

EFFECT: facilitated selection of step-down gear in wide range of gear ration depending on individual capabilities of user.

1 dwg

Differential // 2267676

FIELD: mechanical engineering.

SUBSTANCE: differential comprises housing (1), cross-shaped or straight shaft (5) of satellites, a number of satellites (4), and gear pair (2) of semiaxles. When gears (2) of semiaxles cooperate with satellites (4) the gear ratio changes at least in two stages. The number of stages is multiple to the number of teeth in satellites (4) and gears (2) of the semiaxles.

EFFECT: expanded functional capabilities.

16 cl, 5 dwg, 1 tbl

FIELD: transport engineering.

SUBSTANCE: proposed differential has case 1 which accommodates coaxially installed axle-shafts of drive wheels, cages 7, 8, driven bushings 3, 4 with splines for connection with drive wheel axle-shafts coaxially installed in cages. Case 1 is made in form of cylindrical bushing on inner surface of which longitudinal wedging cavities for rollers 5, 6 are made. Each roller in each cavity can move along driven bushing from one wedging position into the other. Cages 7, 8 are made in form of hollow cylinders with rectangular holes on surface whose number corresponds to number of longitudinal wedging cavities for rollers. On end face surface of cages 7, 8 at least one slot is made on end face surface of one cage and hole with rigidly fitted-in pin on end face surface of other cage. Pin of one cage gets into slot of other cage forming movable link for angular displacement of cages in relatively opposite directions.

EFFECT: improved reliability, roadability and safety of vehicle.

5 dwg

The invention relates to the field of engineering, in particular to driving axles for cars and motorcycles supplied by the differential mechanisms to ensure non-rigid kinematic connection between the two wheels of the axle

The invention relates to transport machinery and can be used in a four-wheel drive

FIELD: transport engineering; mechanical engineering.

SUBSTANCE: planetary gear driven in two-speed final drive of axle is installed in drive pinion case. Ring gear 23 is mounted on hub 24 made integral with clutch member 26 for rotation relate to hub 10 of carrier and is made for connection by clutch 27 with clutch member 32 belonging to case 14. Carrier hub 10 is constantly coupled by connecting clutch 8 with driven shaft and it is arranged coaxially to drive and driven shafts. Connecting clutch 8 has external teeth 9 engaging with teeth of clutch 27 connecting driven and drive shafts with ring gear hub. Drive shaft 15 is installed on additional bearing 17 fitted in bore 18 of driven shaft 3. Hub 24 ring gear with clutch member 26 is installed on bearing resting on carrier hub.

EFFECT: slowed down speeds, increased cross-country capacity of vehicle.

3 cl, 1 dwg

FIELD: transport engineering; vehicle transmissions.

SUBSTANCE: invention can be used in differential drives of vehicles with possibility of automatic wheel locking. Proposed self-locking differential of vehicle contains drive case accommodating axle-shaft members coupled with axle shafts and provided on outer surface semi-round in cross section screw grooves of opposite hand of helix, solids of revolution in form of balls filling, in chain, closed channels made in drive case and containing working grooves opened to dip ball segments into screws of axle-shaft members, longitudinal bypass channels and side return channels. Inner part of case consists of three parts. On extreme parts working grooves are made with opposite direction of helix relative to each other and to screw grooves of axle-shaft members. Middle part is made with width not exceeding diameter of balls and is furnished with through axial holes corresponding to size of diameter of balls. Angle of tilting of working and screw grooves to longitudinal axis is 74-76°. Side return channels in longitudinal section are made with sizes steplessly increasing from diameter of ball on ends of channels to 1.5 diameter of ball in central part of channels. Longitudinal bypass channels in cross section are made to size of diameter of ball, and inner side of channels is made at angle of 1-2° to center of bypass channel, with stepless transition in place of connection.

EFFECT: improved reliability and efficiency of locking.

4 cl, 3 dwg

FIELD: automotive industry.

SUBSTANCE: invention can be used in differential drives of wheeled vehicles made for automatic locking of wheels. Proposed self-locking differential of vehicle contains drive case 1 accommodating axle shaft-members 4, 5 arranged coaxially to each other and coupled with axle-shafts 2, 3. Said axle-shaft members are provided with helical grooves 6, 7 on outer surface with opposite hand of helix, solids of revolution in form of balls 8 filling in line at least one closed channel 10 made in drive case. Part of said channel is opened to dip segments of balls into helical grooves. Closed channel 10 is made rectangular in longitudinal section, with rounded off outer angles 12. Cross section of legs of rectangular closed channel is equal to diameter of balls 8. Number of balls in channel is odd.

EFFECT: simplified design of differential, reduced overall dimensions, increased manufacturability, strength and efficiency at self-locking.

4 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to vehicle transmission and brake system control mechanisms. According to proposed method of driving wheel slip control, center differential is locked by acting onto brakes of driving wheels and (or) changing engine torque at moment of beginning of decreasing of torque transmitted to slipping wheels accompanied by reduction of wheel rolling radius. For this purpose, differential locking device contains hydraulic lock clutch, brush unit 5, high voltage unit 6 and control system including control unit 7 and angular velocity pickup 8, torque pickup 9, linear speed pickup 10 and steering wheel turning angle pickup 11 interconnected by electric circuits. Electrorheologic liquid is used as working liquid. Clutch members are isolated from each other.

EFFECT: improved efficiency of driving wheel slipping control and operation of differential locking control system.

3 cl, 1 dwg

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.

2 dwg

FIELD: mechanical engineering; vehicle transmissions.

SUBSTANCE: proposed differential contains case 1, side gears 2, and 3, planet pinions and locking device. Locking devices is made in form of ring shifter 7 connected with drive 8, pushers 10 arranged inside axles 9 of planet pinions, intermediate members and locking members. Differential includes also elastic stop, and spring inserts 17 and 18 placed between case 1 and rear surfaces 20 and 21 of side gears 2 and 3. Grooves are made on end face front surfaces of side gears 2 and 3. Said grooves have wavy profile corresponding to profile of locking members, and number of radial grooves is even.

EFFECT: prevention of failure of differential lock caused by wedging of locking members between side gears, and falling out of locking members at unlocking, provision of stepless row of values of locking coefficient.

5 cl, 6 dwg

FIELD: transport engineering.

SUBSTANCE: invention can be used to increase cross-country capacity and stability of vehicle at braking. Proposed differential lock mechanism contains locking device in form of friction mechanism including two members 1 and 2. Friction mechanism consists of pack of friction disk 3 and steel disks 4, two control pistons 7, air feed head 8 with union 9. Members 1, 2 of clocking device are connected by pairs of gears 10, 11, 12, 13 with axle-shafts 14, 15. Device is furnished additionally with air fed control system consisting of angular velocity pickups 16, 17, electronic control unit 18, electromagnetic control valve 19, relief valve 20, change-over switch 21, connecting air lines and electric wires.

EFFECT: increased cross-country capacity and stability of vehicle.

2 dwg

FIELD: automotive industry.

SUBSTANCE: automatically locking equalizing differential comprises housing made of two members, speeder interposed between the members of the housing, and four satellites mounted on the pins of the speeder. The satellites are connected with two conical pinions mounted on the cylindrical bushings. The cylindrical bushings cooperates with the semiaxles by means of inner slots. The semiaxles are connected with the locking disk and centering springs by means of screw.

EFFECT: enhanced off-road capability.

2 dwg

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

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

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

Up!