Vehicle differential with automatic locking of wheels

FIELD: transport.

SUBSTANCE: invention relates to vehicle transmissions, particularly, to differentials with automatic wheels locking. The proposed differential comprises drive housing accommodating moving ball closed chains incorporating with half-axle components. The said components are fitted aligned on half-axles. The drive element represents a plate, the ball chains being fitted in the holders furnished with axles mounted in through slots of the drive housing at equal radial distance from the drive housing axis. The ball chains are arranged so as to allow the balls to pass along the variable-depth figurate paths arranged in symmetry on the flange opposite end faces. The said flanges seat on the aforesaid half-axle elements.

EFFECT: higher reliability, compact design.

6 cl, 6 dwg

 

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

Known differential automatic locking of the wheels of the vehicle selected by the applicant as a prototype containing the drive housing with closed chains of balls for interconnection with pausetime elements mounted on axes aligned with each other, in the form of screws with right and left spiral grooves; chains of balls are able to move in is made in the case of closed channels containing opened for dipping segments of the balls in the helical grooves of half-shaft elements working grooves, lateral and return channels (see patent GR No. 38871 from 09.03.04., publ. 10.07.04).

The technical objective of the proposed solutions is to increase the reliability and compactness of differential automatic locking of the wheels of the vehicle.

The problem is solved by performing a known differential automatic locking of the wheels of the vehicle containing the drive housing located so that they can move closed chains of balls for interconnection with pausetime items that are installed on the floor of sah coaxially to each other, which according to the invention the drive casing is made in the form of a disk, and chains of balls are carried by axles mounted in end-to-end the slots at the ends of the drive housing, radially arranged at the same distance from the axis of the drive housing, with the passing of the balls in the figure tracks of variable depth, symmetrically made on facing each other, the ends of the flanges, is made on the half-shaft elements.

The maximum depth curly tracks made by a magnitude not greater than the amount of protrusion of the balls beyond the ends of the drive housing.

Through the slots made perpendicular to the ends of the drive housing.

Through the slots holds uniformly around the circumference of the ends of the drive housing.

Axis clamps can be made cylindrical.

Axis clamps made oval cross-section.

The proposed new layout of the differential automatic locking of the wheels of the vehicle, is made with a new form of transmission of rotation from the body to the axes when the new form of the half-shaft elements, a new form of execution of closed chains of rolling elements and their location in the drive housing, which increased the radii of the contact points of the rolling bodies with curly tracks on the end surfaces of the flanges of half-shaft elements, Thu is possible to reduce the load on the balls, consequently, to reduce their number and make the differential is more compact.

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 its widespread application in vehicles.

The invention is illustrated by drawings, where:

figure 1 - Differential automatic locking of the wheels of the vehicle in longitudinal section;

figure 2 is a View along a-a in figure 1;

figure 3 is a View along b-b In figure 1;

figure 4 - Differential automatic locking of the wheels of the vehicle in ISO;

figure 5 - General view of the cartridge bearings with a cylindrical axis;

figure 6 - General view of the bearing cage with oval cross-section axis.

Differential automatic locking of the wheels of the vehicle comprises a drive housing 1 made in the form of a disk. The ends 2 of the drive housing 1 is made radially spaced the same distance from the axis of the drive housing 1 through the slots 3 in which are mounted the cage 4 with closed chains of balls 5 for Zaimov the zi with pausetime elements 6 and 7, mounted on axles (not shown) coaxially to each other. Through the slots 3 are perpendicular to the end faces 2 of the drive housing 1 and evenly spaced around the circumference of the end faces 2 of the drive housing 1. And closed chain of balls 5 are mounted in the holder 4 to move the balls 5 in figure 8 lanes of variable depth, symmetrically made on facing each other, the ends 9 and 10 of the flanges 11 and 12, made on the half-shaft elements 6 and 7. The maximum depth figure 8 lanes executed by the magnitude is not greater than the protrusion of the balls 5 beyond the ends 2 of the drive housing 1. Clip 4 is made with the axis 13, which may be cylindrical 14 or oval 15 in cross section. The differential also includes a cap 16 and 17 connected to the drive housing 1 by screws 18. To improve the performance differential is possible to install bearings between the covers 16 and 17 and pausetime elements 6 and 7. For transmitting power from the drive shaft to the axle shafts (not shown) on the drive housing 1 fixed gear 19 and openings 20 half-shafts elements 6 and 7 are slots 21 for installation on the axis.

The differential operates as follows. From the propeller shaft of the vehicle - vehicle (not shown) through a main transmission (with a ring gear (19) the movement of privadas the drive housing 1. Due to the fact that curly track 8 on the ends of the flanges 9 and 10 11 and 12 half-shafts elements 6 and 7 are symmetrical (mirror-like and mixed), the balls 5, in case of equality of points on the wheels of the vehicle will not roll within the casing 4. Is rasklinivanie balls 5, and the force from the drive housing 1 through the balls 5 is transmitted to the half-shaft elements 6 and 7, then through the shafts to the wheels of the vehicle, which will rotate at the same speed. When the wheels have different rolling resistance (the car is turning)the wheels, and therefore the half-shaft elements 6 and 7 have the opportunity to rotate at different speeds due to the fact that the balls rolling inside of the clamps 4, objetivas around axis 14 or 15. If one of the wheels is on a slippery patch or will hang in the air, i.e. the time of rolling resistance on it will be close to zero, the second wheel will not fall to zero, as in the case of classical differential. When stopping (fixation) of one wheel and the rotation of the other balls 5, siteplease with figure 8 lanes flanges 11 and 12 half-shafts elements 6 and 7, begin to roll the inside of the clamps 4 and will spin polovoy element (6 or 7), and hence the wheel, which was locked.

Applicants manufactured by Garrett, Borg is n a prototype of the proposed differential automatic locking of the wheels of the vehicle, which was presented for the industrial tests.

1. Differential automatic locking of the wheels of the vehicle containing the drive housing located so that they can move closed chains of balls for interconnection with pausetime elements mounted on axes aligned to each other, wherein the drive body is made in the form of a disk, and chains of balls are carried by axles mounted in end-to-end the slots at the ends of the drive housing, radially arranged at the same distance from the axis of the drive housing, with the passing of the balls in the figure tracks of variable depth, symmetrically made on facing each other, the ends of the flanges, is made on the half-shaft elements.

2. Differential automatic locking of the wheels of the vehicle according to claim 1, characterized in that the maximum depth curly tracks made by a magnitude not greater than the amount of protrusion of the balls beyond the ends of the drive housing.

3. Differential automatic locking of the wheels of the vehicle according to claim 1, characterized in that the through grooves are made perpendicular to the ends of the drive housing.

4. Differential automatic locking of the wheels of the vehicle according to claim 1, characterized in that the through grooves made RA is nomemo around the circumference of the ends of the drive housing.

5. Differential automatic locking of the wheels of the vehicle according to claim 1, characterized in that the axis of the clamps are made cylindrical.

6. Differential automatic locking of the wheels of the vehicle according to claim 1, characterized in that the axis clamps made oval cross-section.



 

Same patents:

FIELD: transport.

SUBSTANCE: proposed gearbox incorporates an input and output shafts running in bearings and a lay shaft arranged parallel to the said input and output shafts. The output and lay shafts are furnished with the supports in the gearbox housing intermediate wall. The input shaft rear end is fitted in the output shaft end. The input shaft comprises a reverse drive gear and three forward running gears made integral with the aforesaid shaft. The input shaft supports also dual-direction gear free running thereon and accommodating a two-position coupling. One driven gear runs free on the output shaft end, while two other driven gears are fitted on the output shaft unfixed with a three-position coupling arranged there between. Three drive gears, dual-direction gear and three forward running driven gears in mesh with the input and output shaft gears run on the lay shaft. The reverse gear is fitted unfixed on the lay shaft to engage with the additional reverse gear. The said lay shaft supports two unfixed three-position coupling seating between the lay shaft gears. Similar coupling is fitted on the output shaft end.

EFFECT: reduced metal input, higher efficiency.

2 dwg

FIELD: machine building.

SUBSTANCE: invention relates to vehicles, in particular to self-locking differential gears and can be used in both transfer box and wheel gears. The propose vehicle differential gear comprises the housing, final drive, differential gear housing with half shaft gears and cams fitted therein. The said half shaft gears are in mesh with differential pinions. The said cams are helically-cammed with half shaft gears to get in contact with the push rods furnished with rollers. The thrust bearing is fixed on the reduction gear housing, the bearing movable race features a cam-like surface to interact with push rod rollers. The bearing cage inner surface features helical grooves or a diametral bore with through holes. The coupling holds the cage down to the thrust bearing fixed race with the help of plate spring.

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Bevel gear // 2341385

FIELD: transport.

SUBSTANCE: bevel gear contains casing (1) with opposite axle shaft gears (2, 3) axis of channel whereof forms acute angle with casing rotation axis of channel. On differential pinion axis (6) collets (10) are installed capable of shift along axis. Pinions (4, 5) engage with collets and penetrating into narrowed zone located between axle shaft gears are seized transmitting torque to stopped axle shaft gear and stopping slippage.

EFFECT: increase of bevel gear slippage properties.

5 dwg

FIELD: machine building.

SUBSTANCE: invention relates to transport machine building, in particular, to automotive and tractor driving axles. The self-locking differential incorporates housing (2), driven gear wheel (1), output half-axles (7), two free travel mechanisms, driving gear coupling (4) with end face trapezoidal teeth and two driven half-couplings with the like teeth rigidly coupled with the free travel mechanism driven cages (6). Gear coupling (4) with the end face trapezoidal teeth is linked with housing (2) to axially move. The distance along the axis between the tooth crests of one and the tooth space of the other driven half-coupling equals the axial distance between the driving coupling (4) crests. The number of end face teeth of each half-coupling is a multiple of the number of locking bodies (8) of the free travel mechanisms. Both such mechanisms are arranged so that, on cutting in, the driven half-coupling crests get aligned with the driving coupling (4) tooth spaces. The driven half-coupling and driving coupling (4) teeth feature an identical profile.

EFFECT: higher safety of vehicles and simpler design of self-locking differential.

2 dwg

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 external surface, have spiral grooves with a semi-circular cross-section, the direction of which is reverse to that of the spiral, rolling elements (balls) filling the closed channels in the power-driven shell, in chains. The closed channels contain working grooves open for inserting ball segments into the spiral grooves. The longitudinal bypass channels and the side return channels are formed by slots in the lids and cuts around the perimeter of the distribution washers installed on the half shaft elements. The distribution washers have a diameter equal to the working groove dimension.

EFFECT: increases reliability of self-blocking differential.

2 cl, 1 dwg

FIELD: mechanic.

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EFFECT: increased reliability of self-blocking differential.

4 cl, 2 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.

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FIELD: mechanical engineering; vehicle transmissions.

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5 cl, 6 dwg

FIELD: transport engineering.

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FIELD: transport.

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FIELD: transport.

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FIELD: transport.

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Planetary gearbox // 2324850

FIELD: transportation, trackless surface vehicles.

SUBSTANCE: invention pertains to the field of motor transport engineering and relates to staggered planetary gear box. The automatic hydro mechanical gear box consists of casing (1), input link (3), output link (4) and planetary reduction gear. In the planetary reduction gear, there are three frictional clutches and four friction brakes. The first planetary gear set consists of central gear (5), drive (6) for satellites and crown gear (7). The second planetary gear set consists of central gear (8), drive (9) for satellites and crown gear (10). The third planetary gear set consists of central gear (11), drive (12) for satellites and crown gear (13). The input link (3) is joined to rigidly interconnected drive (6) and the central gear (8). The crown gear (13) is connected to the output link (4) of the gear box. Drive (9) is connected to the control frictional clutch (15) through drive (6), which is rigidly connected to the central gear (8). Crown gear (10) is connected through the control frictional clutch (16) to drive (12), which is rigidly fixed to the central gear (5). Frictional brakes (17) joins the crown gear (7) to the casing (1) of the gear box. Frictional brakes (18) connect interconnected drive (9) and central gear (11) to the casing (1) of the gear box. Frictional brakes (19) connects the crown gear (10) to the casing (1) of the gear box. Frictional brakes (20) connects interconnected drive (12) and the central gear (5) to the casing (1) of the gearbox. This allows for enhancement of dynamic properties and broadening of the range of transmission ratios.

EFFECT: enhancement of dynamic properties and broadening of the range of transmission ratios.

5 cl, 6 dwg

FIELD: transport engineering.

SUBSTANCE: input shaft 2 and primary shaft 3 are coaxially installed in supports of gearbox housing. Secondary shaft 4, carrier shaft 5 and output shaft 6 are arranged parallel to coaxial shafts 2 and 3. Gear 7 is fixed on primary shaft 3, gear 8 is freely fitted at one side and gear cluster consisting of two gears 9 and 10 is installed at other side. Gear cluster consisting of gears 11 and 12 engaging with gears 8 and 7 of primary shaft and gears 13 and 14 engaging with cluster of gears 9 and 10 on primary shaft are installed on secondary shaft 4. Sun gear 15a of planetary mechanism is secured at output of secondary shaft 4, said gear being engaged with planet pinions 16 arranged on axles of carrier 17H. Planet pinions 16 are in meshing with epicyclic wheel 18b. Gear 8 is connected by tubular shaft 19 with gear rim 20, gear rim 21 is secured on primary shaft 3, and three-position gear rim 22 is secured on input shaft 2, three-position shifter clutch 23A being fitted on gear rim 22. Two position twin clutch B consists of clutches 24 and 25 interconnected by shifter fork 26. Clutch 24 is installed on gear rim of gear 7 of primary shaft 3, and clutch 25, on gear rim of gear 13 of secondary shaft 4. Two-position clutch 27C is fitted on hub of secondary shaft 4 between gears 13 and 14. Gear rim 28 is secured on tubular shaft 29 of housing of epicyclic wheel 18. Two-position gear rim 30 is secured on carrier shaft 5. Three-position gear rim 31 is secured on output shaft 6 which carries shifter clutch 32 connected for sliding with slider 33. Gear rim 34 with internal and external meshing is secured on slider 33, external teeth being engaged with three-position gear rim 35 of housing 1, and gear rim 36 of carrier 17 and gear rim 37 of housing of epicyclic wheel 18 are arranged opposite to external gearing.

EFFECT: reduced metal usage, simplified design of gearbox.

2 dwg

FIELD: transport engineering.

SUBSTANCE: proposed gearbox contains coaxial input, primary and secondary shafts and countershaft parallel to them, two-position twin clutch consisting of two one-way clutch members intercoupled by shifter fork, shifter clutch installed on gear rim of input shaft and shifter clutch installed on gear rim of outer shaft. Simple three-link planetary mechanism is installed on secondary shaft of gearbox.

EFFECT: enlarged operating capabilities of vehicle owing to increased number of speeds and range of gearbox.

2 dwg

FIELD: transport engineering.

SUBSTANCE: invention can be used in vehicles and in drives of mounted equipment of special vehicles. Shifter clutch of gearbox output shaft is brought out of reduction gear part. Cluster of two gears is freely fitted on secondary shaft and one gear is fixed. Shifter clutch is arranged in between, being coupled by slider with other clutch arranged between gears of primary shaft. Carrier shaft gear rim is two-position, and gear rim of output shaft is three-position one. Shifter clutch on said rim is provided with three internal gear rims. Gear rim with internal and external meshings is rigidly secured on slider of shifter clutch. External gearing of rim is engaged with three-position gear rim of housing.

EFFECT: enlarged operating capabilities of vehicle, reduced metal usage of set.

2 dwg

Gearbox // 2319623

FIELD: automotive industry.

SUBSTANCE: gearbox is designed for mounting onto all-wheel-drive trucks. Gearbox case 1 accommodates drive shaft 2, countershaft 3, driven shaft 4, reverse idler gear 5, planetary gear train 6 and interaxle differential 7 are installed on one axle and have common carrier 8. Sun gear of planetary gear train 10 is installed on driven shaft 4. Fitted on drive shaft 2 are double-acting clutches 11 and 12, four rotating gears 13, 14, 15 and 16 and two fixed gears 17 and 18. Fitted on countershaft 3 are double-acting clutch 19, two rotating gears 20 and 21, and four gears 22, 23, 24 and 25 which are fixed. Double-acting clutch 26 and two rotating gears 27 and 28 are installed on shaft 3. Planet pinions 29 of planetary gear train and planet pinions 30 of interaxle differential are arranged on one axle. Ring gear 9 of planetary gear train can alternately engage with toothed rim 31 secured on case 1 and toothed rim 32 on carrier 8. Ring gear 33 of planetary mechanism of interaxle differential is in constant meshing with toothed rim 34 which is secured on shaft 35 of axle drive and can be meshed with toothed rim 36 secured on carrier 8. Sun gear of planetary mechanism of interaxle differential is installed on axle drive shaft 38.

EFFECT: reduced power losses in transmission, noise level in operation, increased number of speeds with optimum kinematic parameters.

2 cl, 2 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to stepless mechanical transmission on base of inertia impulse transmission. Proposed transmission consists of input shaft 1 rigidly connected with housing of impulse mechanism 2 mechanically coupling with intermediate shaft 3 in which two overrunning mechanisms are installed, main mechanism 4 and output mechanism 5. Outer race 6 of main overrunning mechanism is connected with transmission case by means of cam clutch 7. Inner clutch member 8 of one of cam clutches is rigidly connected with housing of impulse mechanism. Clutch member 9 of second clutch is rigidly connected with flywheel 10 of output shaft. Outer race 11 of one of cam clutches is arranged on intermediate shaft between housing of impulse mechanism and main overrunning mechanism. Outer clutch member 12 of second cam clutch is installed on intermediate shaft between flywheel of output shaft and main overrunning mechanism. Outer clutch member 12 is rigidly connected with cam clutch 7 of main overrunning mechanism.

EFFECT: provision of transmission of torque from flywheel of output shaft to input shaft and vice versa.

3 dwg

Planetary gearbox // 2318144

FIELD: mechanical engineering; transmissions of vehicles.

SUBSTANCE: design peculiarity of proposed planetary gearbox is that planetary-pin tooth trains featuring multipair meshing are used as planetary trains 4-8 in gearbox, heaving common input eccentric shaft 2 and common carrier. Central wheels 9 of each planetary-pin tooth train engage with brakes 17-21. Common carrier is coupled with output 3.

EFFECT: increased load carrying capacity in combination with compactness.

4 cl, 2 dwg

FIELD: transport engineering; tractors.

SUBSTANCE: invention relates to hydraulically operated friction clutches. Proposed friction clutch contains hub secured on shaft of gearbox, hydraulic cylinder with radial projections made on hub, piston with pressure disk, thrust disk, inner drum made integral with driven gear and connected by gear joint with driving disks, driven disks connected with outer drum, ring groove made on inner surface of outer drum, and lockring. Novelty is that outer drum and thrust disk are made in form of common part, outer drum is provided with longitudinal projections, with outer projections of driven disks fitted in slots between longitudinal projections. Ends of projections of outer drum are installed between radial projections of hydraulic cylinder, and lockring is arranged in ring channel formed by ring grooves made on inner surface of outer drum and on outer surface of hydraulic cylinder.

EFFECT: reduced wear of disks, increased transmitted power and improved repairability of clutch.

2 dwg

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