SU1237483A1 - Vehicle drive axle - Google Patents

Description

This invention relates to vehicles, in particular, to drive axle devices of vehicles.

The purpose of the invention is to increase reliability.

FIG. 1 shows a general scheme of a vehicle with a hydraulic braking system of a vehicle; in fig. 2 shows section A-A in FIG. one; in fig. 3 - section B-B in FIG. 2 (drive wheel control mechanism); in fig. 4 is a schematic diagram of a vehicle with pneumatic brakes; in fig. 5 --- unit of hydraulic action on the diaphragm of the brake chamber of the pneumatic brake of the machine; in fig. 6 - wheel drive unit located outside the differential box; in fig. 7 - hydraulic cylinder; in fig. 8 is a control mechanism with a hydraulic cylinder containing a manifold; in fig. 9 is a section bb of FIG. eight.

The device consists of heads, their vehicle wheels 1 and 2, interconnected by axles 3 and 4 through differential 5 with differential box 6. On axes x (or differential box), overrunning clutches 7 and 8 of forward running and reverse coupling are mounted in pairs strokes 9 and 10, on which concentric gear pairs of gears 11 and 12 are mounted, as well as 13 and 14, with which other gear pairs of small and large diameter 15, 16 and 17, 18, as well as 19, 20 and 21, 22 are articulated with gearing. which kinematically articulate between each other the axles of the wheels when they are slipped by the shaft consisting of two half-blades 23 and 24, one of which is connected to the large gear and is mounted on it; 1en is a spring-loaded flange 25 which is floating on a key along the axis, connected via a screw assembly 26 to another kinematically communicates with another half 23, also rigidly connected with another small uiectern 15, 18 and 19, 21. Float.1. its flange kinematically through a lever system or via, for example, a hydraulic system with a hydraulic cylinder 28 containing a rod with 29 s roller 30 and piston 31, using working fluid and hydraulic lines 32, during acts on the wheel cylinders 33, the hydraulic braking system (FIG. one). In this case, the master cylinder 34 of the brake system in its inoperative position is disconnected from the hydraulic lines 35 and the wheel cylinders through the spool 36 with the hydraulic lead rod 37, which communicates with the brake pedal 38.

five

To simplify the braking system, it is possible to use the variant with hydraulic cylinders 28, made in the form of spool-type distribution hydraulic cylinders with the working fluid passing through the manifold (Fig. 7). In this case, spool 36 is not set, and the hydraulic system. The braking of the maschina does not differ from the usual one. The mechanism may contain a safety friction coupling. 39. In the case of using a pneumatic braking system, each diaphragm chamber 40 (Fig. 4 and 5) must have a hydraulic cylinder 42 communicating with its hydraulic cylinder 28, but a lever connection of the diaphragm 41 directly with flange 25.

The device works as follows.

The movement is linear.

Only clutches 7 and 8 of the forward stroke are working, and clutches 9 and 10 of the reverse gear are disconnected. The half shafts 3 and 4 rotate at equal speeds, and the half-shaft 23 rotates faster than the half-shaft 24, which allows the overrunning clutch 27. When reversing, the similar operation of the system occurs.

Turn the car.

The mutual speeds of the half-blades 23 and 24 vary within the limits allowed by the gear ratios of the wheels 15 and 16. The operation of the system does not change.

Slip.

One of the wheels, for example a wheel with a half-axle 3, accelerates the rotation relative to the half-axle 4 to such an extent that the semi-double 24 draws the half of the 23 and tends to overtake it. The clutch 27 is actuated, the joints of the half 23 and 24 are rigid. On the other hand, gear 18 continues to overtake gear 17 and, as the difference in wheel speeds further increases, screw assembly 26 is actuated, moving flange 25, which moves the piston of the hydraulic cylinder 28. The working fluid from the hydraulic cylinder 28 flows into the braking hydraulic cylinder 33 of the stalled wheel. The brake of the wheel being driven is activated. The wheel is braked and, through the differential, accelerates the rotation of the other wheel coaxial with it, increasing the permeability of the engine HJ and Ns.

5 When the other wheel is slipping, the mechanism on the other hand, containing gears 17 and 18, works similarly. When the rear axle is slipping, another pair of gears with gears 19, 20 and 21, 22 works in the same way.

0

1ZTI.MI overrunning clutches similar to the clutch 27 (not shown).

XI-L

and

20 21 22. FIG. 2

Bb bbc 23 27 26 25 24/6 39

  V / YY

/ 7 3/28

FIG.

FIG. five

17 28 27 W

27 to 28 of FIG. 6

7

-J

AT

Fig.c

2831

Claims (1)

VEHICLE DRIVING BRIDGE, comprising brake gears mounted in the axle shaft of the drive wheel drive axles with power cylinders connected to the final drive by a differential mechanism, and drive wheel rotation control device including wheel speed sensors mounted on the axle shafts, and an angular velocity comparison mechanism the semi-axis, the outputs of which are kinematically connected with the corresponding power cylinders of the brake mechanisms of the drive wheels, and the inputs are with the indicated sensors In order to increase reliability, the sensors are overrunning forward and reverse couplings, one mounted on each axle shaft, and the mechanism for comparing the angular speeds of the axle axles is the first kinematic coupling circuit of the overrunning forward coupling couplings to each other and the second kinematic coupling circuit freewheeling reverse couplings with each other, with each kinematic chain includes a first gear row of constant engagement, one gear of which is connected to the corresponding freewheel of one axles connected in series with each other, the first shaft, on which another gear of the aforementioned row is placed, coaxially placed and connected to the first via a sequentially installed overrunning clutch and screw-type screw-nut mechanism and a spline connection, a second shaft connected to the corresponding overrunning clutch of the other half shaft the second gear row of constant engagement, the gear ratio of which is greater than the gear ratio of the first row, and the screw of the screw mechanism is spring loaded relative to the second shaft flange pivotally connected to the rod of the power cylinder, the control cavity of which is connected by a highway to the control cavity of the brake cylinder of the corresponding drive wheel of the bridge, while the trunk of the control cavities of the power cylinders of the brake mechanisms of the drive wheels are connected to the locking system via a control device. SU .. „1237483 Fig!