The differential of a drive axle of the vehicle

 

The invention relates to the field of engineering. The differential includes a conical satellites 8 and the Central gear 12, 13 located in the housing 1. The housing 1 has a flange 3, which are connected to the cover 2 and the gear wheel 4 wheel drive differential. Between the housing 1 and the cover 2 are made of an oil channel formed by the groove 15 in the cover 2 and the flange 3. In case the gear 12 is a through hole 14. The technical result - providing abundant lubrication of the parts of the differential by a vigorous stream of air-oil mixture. 7 C.p. f-crystals, 4 Il.

The invention relates to the field of engineering. It concerns the differential gears with tapered satellites used in vehicles, in particular in driving axles of buses and trolleybuses.

In differential gears, called more briefly differentials, housing for lubrication of parts perform special oil holes that are shown in the various security documents (issued in USSR author's certificate No. 401845, IPC F 16 H 57/04; published EPO application No. 343146, IPC F 16 H 57/04; patents in Germany, No. 2219258, IPC F 16 H 57/04; U.S. No. 3429400, 3966020, N is estva, containing shaped body consisting of two cups connected between a plane containing the axis of the conical satellite differential (issued in USSR author's certificate No. 844394, IPC F 16 H 57/04). On one of the cups of the case is made scoops and holes for the passage of lubricating fluid, and in the other Cup has a window for passage of the air-oil aerosol, which is placed radially spaced fins set at an angle to a plane perpendicular to the axis of the differential. This differential case has a very complex shape and reduced stiffness.

Know of any other differential driving axle of a vehicle, comprising a housing consisting of two articulated between a Cup having a longitudinal oil hole on one of the cups attached slave gear wheel of the main gear (issued in USSR author's certificate No. 1458634, IPC F 16 N 57/04). On Carter drive axle fixed collector ring covering one Cup differential, and on the top collector is tubular passage with an oblique end, placed in the annular trough mounted on the back side of the aforementioned gears. This differential is the train the other differential bevel satellites, comprising a housing with openings at the periphery, where there are specialized Cams for directing lubricating fluid from an external oil bath to the satellites for the lubrication of their supports (issued in great Britain patent No. 2036207, IPC F 16 N 57/04). Know of any other similar differential device for lubrication, comprising a housing consisting of two cups, each of which periphery is made obliquely through the oval hole to capture the lubricating fluid from the oil bath crankcase drive axle (published in Japan application No. 63-38586, IPC F 16 N 57/04). However, when the rotation of the housing by centrifugal force substantially prevents the passage of lubricating fluid into it through such holes.

A device for lubrication of the differential of a drive axle of a vehicle with a tapered satellites containing tray mounted in the crankcase drive axle opposite the Central conical opening at the end of the differential housing extending towards the other end of the housing, is made with a tapered bore larger, extending in the same direction to create a flow of lubricating liquid from the tray through the differential (applications in EPO No. 280093, IPC F 16 H 57/04, Germany No. 3706217, M is the was taken as a prototype differential driving axle of the vehicle, containing conical satellites and the Central gear located in the housing with the periphery of the annular flange, with which the different parties connected cover and a gear wheel drive differential (issued in Swedish patent No. 510894, IPC F 16 H 48/08, published 05.07.1999). For lubrication of satellites and their supports in the housing cover is made of conventional oil hole, which is insufficient to provide details of the differential abundant lubrication.

Task - providing simple means reliable lubrication of the differential of a drive axle of the vehicle.

To solve this problem in differential containing conical satellites and the Central gear located in the housing having a flange with which it is interconnected housing cover and a gear wheel drive differential, between the body and lid made oil channel, and in the case about gear is a through hole.

If the housing or cover oil passage, and the housing around the gear holes in the differential containing conical satellites and the Central gear located in the housing having a flange with which it is interconnected housing cover and a gear wheel drive differential, with the ENES conical satellites and pinion that ensures reliable lubrication of their bearings. This is achieved because the output oil passage to the outside is located on a large radius due to the coupling of the cover with the flange of the body, which serves for securing the gear.

Mentioned oil channel is formed by a groove made in the lid and the flange of the body.

In the case of the differential between it and the cap near the groove ring set partition that separates the cavity inside the housing for formation oil bath.

In the groove is set the blade to capture the lubricating fluid from the oil bath, kept in the tank, in which is placed the differential.

The blade is made in the form of a plate with spikes on each side, placed in holes made in the flange of the body and the lid.

The plate is made in the form of a scoop, that is, with a curved terminal block located at the periphery of the cover.

The groove in the cover is located along the chord, that is, obliquely, to facilitate throwing the lubricating fluid of the ladle into the cavity inside the housing. The rim of the lid may have a groove plot variable radius, decreasing toward the front surface of the scoop, for improved terms of leakage of lubricating fluid h is Sportage means, longitudinal section; Fig. 2 shows a section of the cover of the differential housing with the blade; Fig. 3 shows separately the blade of maslosborny, view in plan; Fig. 4 - blade maslosborny, side view.

The differential includes a Cup-shaped housing 1 with a cover 2 (Fig.1). The housing has a flange 3, which on the one hand involves worn on the body gear wheel 4 wheel drive differential, and on the other hand involves the cover 2. Gear wheel 4 and the cover 2 is fixed to the flange 3 by screws 5, the heads of which are located in zekovic 6 on the cover 2 (Fig.2). The housing 1 with a cover 2 is installed in the crankcase drive axle on tapered roller bearings 7 (Fig.1). In the housing 1 are tapered satellites 8, mounted on the supporting rods 9, 10. Satellites 8 is a through radial holes 11 for the passage of lubricating fluid to the pair of satellites with the supporting rods. Satellites have 6 teeth meshing with the Central gear 12 and 13, respectively installed in the housing 1 and the cover 2. In the housing 1 about the gear 12 opposite its end of the longitudinal through hole 14, and between the body 1 and lid 2 are made of oil channels, each of which is formed by a groove 15 a U-shaped about the 15 set the blade 16, which is a plate with studs 17, 18 on the lateral edges (Fig.3), placed in holes made in the flange 3 of the casing and in the cover 2. Plate, forming a blade 16 has a curved end section 19 (Fig.4), forming with the cover 2 and the flange 3 a scoop to capture lubricant from the oil bath crankcase drive axle. Rim 20 (Fig.2) cover 2 has a groove 15 section 21 variable radius, decreasing toward the front surface of the scoop, that is, the blades 16 maslosborny. In the housing 1 between it and the cover 2 near the groove 15 is installed annular wall 22 (Fig.1) that separates the inside of the housing 1, the cavity 23 for formation oil bath. The partition 22 is made of thin plate, which is clamped in the housing 1 cover 2, abutting against the annular ledge 24 in the plate at a diameter smaller than the diameter of the contact plate with the housing 1.

During the rotation of the differential lubricating fluid in the crankcase drive axle, sprayed the toothed wheel 4, which creates the air-oil mixture, i.e. oil spray, called oil mist. As the oil channel formed by the groove 15 and the flange 3 of the casing, and a through hole 14 in the housing are located at different distances from bedstvie something inside the differential under the influence of centrifugal forces, there is a considerable flow mentioned air-oil mixture from the hole 14 in the specified oil channel, formed by the groove 15 and the flange 3. When getting this air-oil mixture from the hole 14 in the cavity 23 under the action of centrifugal forces is deposited her on the inner wall of the casing and on the satellites 8 drops of lubricating fluid through the openings 11 penetrate to the pairing of satellites 8 with the supporting rods 9, 10 and, in addition, accumulating in the cavity 23, the form in it's own oil differential. Thus from leaking out of the cavity 23 of the accumulated lubricating fluid is retained annular partition 22. In addition, this private oil bath additionally filled with grease when you throw in her portions of the lubricating fluid by the blades 16, which scoop as the scoop lubricating fluid from the sump drive axle and direct it into the cavity 23 through the annular gap between the inner edge of the partition 22 and the parts of the differential. Lubricating fluid is received in the cavity 23, thanks to its abundant quantity, provides proper lubrication interfaces satellites 8 with their legs slip, which increases the reliability of the differential.

Thus, due to the fact that the differential containing conical satellites and gear, whic is a cap made of an oil channel, and in the housing around the gear performed through a longitudinal hole created in the intensive circulation of the air-oil mixture through the differential, providing abundant lubrication of the parts. This is facilitated by the presence between the body and cover the annular partition separating about satellites cavity, which creates its own oil bath, from which there is direct feeding lubricating fluid interfaces satellites with their supporting rods, which is the most loaded of their plots. The receipt of a positive technical result also contributes to the accommodation in the above-mentioned oil channel of the blade in the form of a scoop, the guide portion of the lubricating fluid inside the differential is formed in an oil bath.

Claims

1. The differential of a drive axle of a vehicle, containing conical satellites and the Central gear located in the housing having a flange with which it is interconnected housing cover and a gear wheel drive differential, characterized in that between the housing and cover are made of an oil channel, and in the case about gear is a through hole.

2. Differ rential under item 2, characterized in that the casing between it and the cap near the groove ring set partition.

4. Differential under item 3, characterized in that the groove is installed blade.

5. Differential under item 4, characterized in that the blade is made in the form of a plate with spikes at the edges, placed in holes made in the flange of the body and the lid.

6. Differential under item 5, wherein the plate is made in the form of a scoop.

7. Differential under item 6, characterized in that the groove in the cover is located along the chord.

8. Differential under item 7, characterized in that the rim of the lid has a groove plot variable radius, decreasing toward the front surface of the scoop.

 

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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

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