Double-flow driving axle

FIELD: machine building.

SUBSTANCE: double-flow driving axle consists of two main transmissions. A driven gear in the first main transmission is rigidly attached to a carrier of a differential. The driven gear of the second main transmission is installed in a cylinder aperture of the differential carrier and is connected to the half-axle of the assembly with splines.

EFFECT: upgraded compactness and simplification of design.

1 dwg

 

The invention relates to transport machinery.

Known for twin axles, which are the two main transmission, for example, axle drive caterpillar tractor T-150 [1], s, RIS and twin axle on UA 3155 [2], UA 3477 [3], UA 67437 [4] and others.

The lack of them - in high complexity, since each main gear is placed in its housing, and the driven gear of each main gear set through a separate pair of rolling bearings. For this reason, in the known twin bridges hosted a pair of main gears non-compact.

Famous twin axle drive propulsion with two main gear, the first driven gear mounted on a drive rod of the differential, and the hub of each sun gear is installed movably in the cylindrical hole of the body was taken to the axis of rotation and is connected by splines with one of the axes [4], and it has been adopted for the prototype.

The lack of it - and in increased complexity and noncompact placing a pair of main gears for the same reasons that have analogues[1], [2], [3].

The technical result of the invention is to improve the compactness and simplification of the structure of a twin drive axle.

The essence of the invention is that of a twin axle drive propulsion vehicle soda is separated by two main transmission, the first driven gear mounted on a drive rod of the differential, and the hub of each sun gear of the differential is installed movably in the cylindrical hole of the body was taken to the axis of rotation and is connected by splines with the axis of drive propulsion, and with the slots of one of the axes connected to ring gear of the second main gear, and accordingly the invention the hub of the driven gear of the second main gear movably installed in the same hole body was taken, in which you installed sun gear, but on the other side of this hole, and the driven gear both main gears are based on the same pair of rolling bearings that and drove, and one of them is installed in the wall fixed between the connecting flanges polomolok body of the bridge.

Due to the above essential features do not require additional bearings to install driven gear of the second main gear, and the device is both the main transmission is extremely compact.

Arranged in a two-line drive axle (the axle), for example, as follows.

The drawing shows part of the bridge with two main transmission section through the axes of rotation of the gears, but one of the glasses in Assembly with the shaft, gears and other parts not shown in section, and shows the view from above is from.

The legend on the drawing:

1 - body bridge (next building),

2 - right semi-body bridge with a connecting flange (hereinafter semi-body),

3 is a left semi-body bridge with a connecting flange (hereinafter semi-body),

4 - partition with flange (next screen),

5 - bolt connection of semi-bodies and partitions in a single housing 1 (the bolt),

6 - drive shaft-gear first main transmission (hereinafter gear shaft),

7 - drive shaft-gear of the second main transmission (hereinafter gear shaft),

8 - Cup for mounting therein the input drive shaft 6 (the Cup),

9 - Cup for installation in him pinion shaft 7 (the Cup),

10 - conical bearing (the bearing),

11 - ball bearing with two seals and grease (the bearing),

12 - bolt cups 8 and 9 to the semi-bodies 2 and 3, respectively (the bolt),

13 - strip adjustment gear gear main gear (the strip),

14 is a flange with slotted hole (hereinafter flange)

15 - washer-griseostriatus slotted hole (hereinafter griseostriatus),

16 - thrust washer (the washer),

17 - castle nut (hereinafter nut),

18 - pin fixing nut 16 (hereinafter cotter pin),

19 - Cup Assembly with the shaft-gear, flange, griseostriatus and other items (hereinafter the glass Assembly),

20 - WEDO is the first gear of the first main gear (the gear),

21 - drove differential bridge (hereinafter led),

22 - bolt gear 20 to the cage (the bolt),

23 - the left Cup was taken with a flange for fastening the gear 20, and with a mounting seat for mounting the rolling bearing with a cylindrical bore along the axis of rotation of this Cup (the Cup),

24 - the right Cup carrier with a mounting seat for mounting the rolling bearing with a cylindrical bore along the axis of rotation of this Cup (the Cup),

25 - bolt connections cups in a single node (the bolt),

26 - conical bearing (the bearing),

27 - axle gear-satellites (the rod),

28 - axis gears-satellites located perpendicularly to the rod 27 (hereinafter the web),

29 - gear-pinion differential (the satellite),

30 - right sun gear of the differential gear (the gear),

31 - left sun gear of the differential gear (the gear),

32 - ring gear of the second main gear (the gear),

33 - the left axis of the axle (the axle),

34 - right axis of the axle (the axle).

The housing 1 of the bridge is formed of two arms: right 2 and left 3. Between them the wall 4, which is sandwiched between the connecting flanges of the semi-bodies bolts 5. Gear shaft 6 and gear shaft 7 are identical and installed in the cups 8 and 9, which also Odie the hat. Within the body of the glass has seats for planted on the pinion shaft bearings 10 and 11, and an annular valve stem projection between them. The outer surface of the cylindrical glass with square flange for fastening to the body of the axle bolts 12 through the strip 13. On spline shank pinion shaft has a flange 14 of accession to the dual stream transmission, for example through cardan shafts. This flange is separated from the bearing griseostriatus 15 and through the washer 16 is fixed by a nut 17 with the pin 18.

Driven gear 20 of the first main gear connected to the planet carrier 21 of the differential bolts 22. Drove consists of cups 23 and 24, connected by bolts 25, and is installed in the housing of the axle on bearings 26, one of which is in the partition. Between the cups drove sandwiched mutually perpendicular rods 27 and 28 with two satellites 29 each. The satellites are in engagement with gears 30 and 31, the hub of each of which is installed movably in the cylindrical hole of the Cup 23 and 24, respectively. In the cylindrical hole of the Cup 23 is adjustably mounted the hub of the gear 32, the teeth of which mesh with the teeth of the pinion shaft 7, the second main gear. With gears 31 and 32 are connected by a splined shaft 33 and gear 30 are connected by a splined shaft 34. The flange 14 of each main gear connection of the Yong, for example, the propeller shaft with the corresponding facing shaft dual stream transmissions (hereinafter referred to double-flow CAT).

Operates a two-line bridge as follows.

A) Let you want to the right and left mover, such as pneumococcal, to pass from the engine through the transmission with dual stream transmission and a two-line bridge the same torque as with the same frequency of rotation of left and right movers on the straight-line trajectory, and with different speed of right and left movers, but with the same torques on a curved trajectory. In this case, the drive shaft gear 7, the second main gear is disconnected from the engine corresponding switching dual stream transmission. Gear shaft 7, having a kinematic connection with the engine, not to prevent the free rotation of the gear 32 with the axis 33. Torque from the engine to the propulsion passed through the first main transmission, differential, and axle shafts 33 and 34.

B) Let you want to the right and left propulsion, for example, to pneumocolon, to pass from the engine through the transmission with dual stream transmission and a two-line bridge torques with the same frequency on a straight-line trajectory even when different coefficients of coupling the right and left propulsion with the surface of the road. In the ACOM case, using dual stream transmission include the same speed shaft-gears 6 and 7 both main gears. Therefore, the gear 20 and 32 rotate synchronously. Therefore, the differential is locked, the shafts 33, 34 and both propulsion rotate synchronously, i.e. with the same frequency regardless of the conditions of coupling of each of the mover, for example, pneumocytes, with the surface of the path.

B) Suppose you are right and left propellers to inform torque with a given ratio of the frequencies of rotation, for example, stars left and right caterpillars. To do this, simultaneously include different frequencies of rotation facing shaft dual stream transmission transmission machine. Therefore, the gear 32, the shaft 33 and the gear 31 rotates with a higher (lower) frequency than the gear 20 and the carrier 21. By turning satellites 29 gear 30 and shaft 34 are behind drove (overtaking drove) and therefore rotate with a frequency less (greater)than the gear 31 and shaft 33. Thus the left caterpillar make runner (lagging), and the right - backward (runner). In the tracked machine is moved along the arc of rotation with constant radius and with the same module machine speed as before the turn, which is also useful.

G) Suppose you want to deploy tracked machine on site around its center of gravity (hereinafter CT) at some angle. To do this in dual stream transmission output drive shaft of the first main gear axle is disconnected from the engine and brakes. This is about Tanglewood pinion shaft 6, the gear 20 and the carrier 21. The axle 33 with the left propeller rotate only through the pinion shaft 7 and the gear 32 of the second main gear and the axle 34 with the right mover rotate through the pinion shaft 7, the gear 32, the shaft 33, satellites 29 and gear 30 with the same frequency as the axle 33 with the left mover, but in the opposite direction.

So, thanks declared essential features of a twin axle of the vehicle, simply known twin bridges, has a fairly compact device that allows you to use it primarily on a wheeled / tracked vehicles to drive and wheels with pneumatic tires and the leading stars of the caterpillars of the same bridge, as well as apply it as in wheeled and tracked machines for various purposes.

References

1. Traktori T-150 i T-150K. Potapenko A.T., "Harvest", 1978, 360 S.

2. UA 3155 B62D 7/14. Machine caterpillar. Publ. 15.10.2004, bull. No. 10.

3. UA 3477 B62D 55/00. Tractor-unversal. Publ. 15.11.2004, bull. No. 11.

4. UA 67437 F41H 7/00, B62D 7/14. Samohin machine. Publ. 15.12.2006, bull. No. 12.

Twin axle drive propulsion vehicle containing two main gear, the first driven gear mounted on a drive rod of the differential, and the hub of each sun gear is installed movably in the cylindrical hole of the body was taken across the axis of its rotation is occurring and is connected by splines with the axis of drive propulsion, with the slots of one of the axes connected to ring gear of the second main gear, characterized in that the hub of the driven gear of the second main gear movably installed in the same hole led, which has a sun gear, but on the other side of this hole, and the driven gear both main gears are based on the same pair of rolling bearings that were taken, and one of them is installed in the wall fixed between the connecting flanges polomolok body bridge.



 

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