CN113188029A

CN113188029A - Oil receiving disc

Info

Publication number: CN113188029A
Application number: CN202110333032.3A
Authority: CN
Inventors: 闫萌萌; 张少侠; 胡东阳; 付祖发
Original assignee: Dongfeng Dana Axle Co Ltd
Current assignee: Dongfeng Dana Axle Co Ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-07-30

Abstract

The invention relates to an oil receiving disc, which is used for being connected to the outer side of a differential shell and comprises a disc body and an oil receiving handle, wherein the oil receiving handle is connected to the front end of the disc body, the upper end surface of the oil receiving handle is provided with an oil receiving part which is sunken downwards, an oil containing groove is formed in the disc body, one side of the oil containing groove is opened, the front end of the oil containing groove is communicated with the rear end of the oil receiving part, the bottom surface of the oil receiving part is higher than that of the oil containing groove, the oil receiving handle is arranged close to one side of a driving gear of a differential, and one side of the opening of the oil containing groove is opposite to a differential bearing of the differential; the differential gear ensures that lubricating oil cannot be directly thrown out from the inside of the differential gear to reduce the lubricating oil, and prevents abrasion and burning loss caused by poor lubrication during high-speed running and long-time running of a vehicle.

Description

Oil receiving disc

Technical Field

The invention relates to the technical field of drive axle lubrication, in particular to an oil receiving disc.

Background

An inter-axle differential is disposed inside an automobile drive axle and generally comprises a left shell, a right shell, and planetary gears, side gears and other parts mounted inside the differential. During operation, the relatively moving parts such as the planetary gears and the side gears must have sufficient lubricating oil for lubrication and cooling. Under the static state of the vehicle, a small amount of lubricating oil can enter the differential through the holes formed in the left shell and the right shell to lubricate the gears. When the oil level drops after the vehicle starts to run, the inside of the differential and the differential bearing cannot directly contact with lubricating oil, the internal lubricating oil is thrown out by centrifugal force generated when the differential rotates, the oil quantity is rapidly reduced, and gears are abraded due to lack of lubrication in a short time. This failure occurs particularly when the vehicle is running at high speed and for a long time, and the transmission reliability is seriously affected.

Disclosure of Invention

In view of the above, the present invention provides an oil receiving pan, which can ensure that lubricating oil thrown out from the inside of a differential mechanism can enter the inside of the differential mechanism again to lubricate parts during the running process of a vehicle.

The technical scheme for solving the technical problems is as follows: the utility model provides a connect food tray for connect in the outside of differential mechanism casing, include the disk body and connect the oil handle, connect the oil handle connect in the front end of disk body, the up end that connects the oil handle is formed with the oil portion that connects of undercut, be formed with flourishing oil groove on the disk body, one side opening of flourishing oil groove, the front end of flourishing oil groove with connect the rear end intercommunication setting of oil portion, the bottom surface that connects the oil portion highly is higher than the bottom surface height of flourishing oil groove, connect one side setting that the oil handle is close to differential mechanism's driving gear, flourishing oil groove open-ended one side sets up with differential mechanism's differential mechanism bearing relatively.

The application provides a connect food tray, it adopts the design that connects the oil handle setting in driving gear one side, guarantee that the oil that the driving gear was thrown away can fall into and connect oil handle undercut connect in the oil portion, then flow direction flourishing oil groove, oil in the flourishing oil groove passes through the clearance between differential mechanism casing and the main shaft from its open-ended one side and enters into inside the differential mechanism, guaranteed that lubricating oil can not be by directly throwing away from differential mechanism inside and lead to the lubricating oil to reduce, and can in time supply, the wearing and tearing and the scaling loss because of lubricated bad when the high-speed operation of vehicle and long-time operation have been prevented.

On the basis of the technical scheme, the method is further improved as follows:

furthermore, the rear end of the bottom surface of the oil receiving part is connected with the front end of the bottom surface of the oil containing groove in a smooth transition mode.

The beneficial effects are as follows: the lubricating oil in the oil receiving part can smoothly and fully flow into the oil containing groove.

Furthermore, a connecting flange is formed on the outer edge of the disc body and used for being connected with the differential shell.

Furthermore, through holes for installing fastening bolts are formed on the connecting flange.

The beneficial effects are as follows: through the arrangement of the connecting flange and the through hole, the oil receiving disc is guaranteed to be stably installed on the shell of the differential mechanism on the premise that the overall structure of the differential mechanism is not changed as far as possible.

Furthermore, the tray body is of a semicircular structure, and the upper end of the tray body is provided with an opening.

The beneficial effects are as follows: the upper end opening of disk body can effectually be located the lubricating oil that connects other parts drippage of oil pan top with transaxle inside and catch to send to differential mechanism inside, further guaranteed the inside part lubrication of differential mechanism.

Furthermore, a position avoiding notch is formed on the disk body corresponding to the main shaft of the differential, and the lowest point of the position avoiding notch is higher than the lowest point of the main shaft through hole on the differential shell.

The beneficial effects are as follows: keep away a breach and can effectually prevent to connect food tray and main shaft to interfere, keep away the high setting of a breach simultaneously and can effectively prevent lubricating oil from keeping away a breach outflow.

Furthermore, an inclined plane which is parallel to the top end surface of the driving gear is formed on one side of the oil receiving handle close to the driving gear.

The beneficial effects are as follows: the arrangement of the inclined plane on the oil receiving handle can enable the oil receiving handle to be closer to the driving gear under the condition of interference between the oil receiving handle and the driving gear, so that the accuracy and the effectiveness of oil receiving are guaranteed.

Furthermore, the disk body and the oil receiving handle are of an integrally formed structure.

Drawings

FIG. 1 is a schematic perspective view of an oil pan according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the flow direction of lubricating oil in an oil-receiving pan according to an embodiment of the present invention;

FIG. 3 is a sectional view of an oil pan according to an embodiment of the present invention;

FIG. 4 is a perspective view of the oil pan according to the embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

10. an oil receiving pan; 1. a tray body; 2. an oil receiving handle; 3. a differential mechanism; 11. a side wall; 12. a bottom wall; 13. a connecting flange; 1a, an oil containing groove; 1b, avoiding a gap; 2a, an oil receiving part; 2b, a bevel; 13a, a through hole; 31. a differential housing; 32. a driving gear; 33. a differential bearing; 34. a main shaft.

Detailed Description

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.

As shown in fig. 1, the present embodiment provides an oil pan 10 for attachment to the outside of a differential case 31, including a disk body 1 and an oil receiving shank 2.

As shown in fig. 3 and 4, the oil receiving handle 2 is connected to the front end of the disc body 1, an oil receiving portion 2a recessed downward is formed on the upper end surface of the oil receiving handle 2, and the oil receiving handle 2 is disposed on a side close to the driving gear 32 of the differential mechanism 3, so as to ensure that the oil receiving portion 2a on the oil receiving handle 2 can receive the lubricating oil thrown up by the driving gear 32 during the rotation of the driving gear 32 of the differential mechanism 3.

As shown in fig. 2, an oil containing groove 1a is formed in the tray body 1, the front end of the oil containing groove 1a is communicated with the rear end of the oil receiving portion 2a, the bottom surface of the oil receiving portion 2a is higher than the bottom surface of the oil containing groove 1a, so that the lubricating oil received by the oil receiving portion 2a flows to the oil containing groove 1a along the arrow direction in the figure.

As shown in fig. 3 and 4, one side of the oil reservoir 1a is open, one side of the oil reservoir 1a, which is open, is disposed opposite to the differential bearing 33 of the differential 3, and the oil in the oil reservoir 1a enters the differential 3 through a gap between the differential case 31 and the main shaft 34 from the open side thereof.

And then effectively guaranteed that lubricating oil can not directly be thrown away from differential mechanism 3 is inside, and lead to lubricating oil to reduce, prevented because of wearing and tearing and the scaling loss that lubricated bad caused when the vehicle high speed operation reaches long-time operation, the inside that differential mechanism bearing 33 can be got into to the lubricating oil that few parts are accumulated in flourishing oil groove 1a in addition, lubricate differential mechanism bearing 33, guarantee its life.

In order to make the lubricating oil in the oil receiving part 2a flow into the oil containing groove 1a smoothly and sufficiently. The rear end of the bottom surface of the oil receiving part 2a is connected with the front end of the bottom surface of the oil containing groove 1a in a smooth transition mode.

Wherein, disk body 1 is semi-circular structure, and in the embodiment of this application, disk body 1 includes that one is located the lateral wall 11 in the outside and is located the diapire 12 of bottom, and wherein the whole semicircular structure that is of lateral wall 11, diapire 12 are for buckling into the sheet structure of semicircle, the upper end opening of disk body 1, its effectual inside lubricating oil that is located the other part drippage that connect the oil pan 10 top of transaxle catches to send to differential mechanism inside, further guaranteed the inside part lubrication of differential mechanism.

In some embodiments of the present application, the disk 1 may be welded directly to the differential case 31 by welding; in other embodiments of the present application, the outer edge of the disk 1 is formed with a connecting flange 13 for connection with a differential case 31; more specifically, the connecting flange 13 is formed with through holes 13a for mounting fastening bolts, which ensure that the oil pan 10 is stably mounted on the differential case 31 without changing the overall structure of the differential 3 as much as possible.

In the preferred embodiment of the present application, the disc body 1 is formed with a clearance gap 1b corresponding to the spindle 34 of the differential 3, that is, the clearance gap 1b is formed at the central position of the top of the side wall 11, the lowest point of the clearance gap 1b is higher than the lowest point of the spindle through hole on the differential housing 31, the clearance gap 1b can effectively prevent the oil receiving disc 10 from interfering with the spindle 34, and meanwhile, the height of the clearance gap 1b can effectively prevent the lubricating oil from flowing out from the clearance gap 1 b.

More preferably, an inclined plane 2b arranged in parallel with the tooth crest end surface of the driving gear 32 is formed on one side of the oil receiving handle 2 close to the driving gear 32, and the arrangement of the inclined plane 2b on the oil receiving handle 2 can enable the oil receiving handle 2 to be closer to the driving gear 32 under the condition of not interfering with the driving gear 32, so as to ensure the accuracy and the effectiveness of oil receiving.

In some embodiments of the present application, the disk body 1 and the oil receiving handle 2 are welded, but because the welded formation may leave a protrusion or a welding spot inside, the connection between the oil receiving portion 2a and the oil containing groove 1a is not smooth, and therefore, in a preferred embodiment of the present application, the disk body 1 and the oil receiving handle 2 are formed as a single piece.

The oil receiving disc 10 provided by the embodiment of the application can effectively ensure that lubricating oil cannot be directly thrown out of the differential mechanism 3 to reduce the lubricating oil when in use, prevents abrasion and burning loss caused by poor lubrication when a vehicle runs at a high speed and runs for a long time, and can continuously lubricate parts by entering the differential mechanism 3 during running of the vehicle.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a connect food tray for connect in the outside of differential mechanism casing, its characterized in that, include the disk body and connect the oil handle, connect the oil handle connect in the front end of disk body, the up end that connects the oil handle is formed with the portion that connects of undercut, be formed with flourishing oil groove on the disk body, one side opening of flourishing oil groove, the front end of flourishing oil groove with connect the rear end intercommunication setting of oil portion, the bottom surface that connects the oil portion highly is higher than the bottom surface height of flourishing oil groove, connect one side setting that the oil handle is close to differential mechanism's driving gear, flourishing oil groove open-ended one side sets up with differential mechanism's differential mechanism bearing relatively.

2. An oil-receiving pan as claimed in claim 1, wherein the rear end of the bottom surface of the oil-receiving portion is smoothly transitionally connected with the front end of the bottom surface of the oil-receiving tank.

3. An oil drip pan as set forth in claim 1 wherein an outer edge of said pan body is formed with a connecting flange for connection with a differential housing.

4. An oil pan according to claim 3, wherein a through hole for mounting a fastening bolt is formed in the connecting flange.

5. An oil drip pan as set forth in claim 1 wherein said pan body is of a semi-circular configuration with an upper end of said pan body being open.

6. An oil pan as set forth in claim 1 wherein said plate body is formed with a relief notch corresponding to the main shaft of the differential, the lowest point of said relief notch being higher than the lowest point of the main shaft through hole on said differential case.

7. The oil pan as claimed in claim 6, wherein a slope is formed on a side of the oil receiving handle adjacent to the drive gear in parallel with a tooth top surface of the drive gear.

8. An oil drip pan as set forth in claim 1 wherein said pan body and said oil drip stalk are of an integrally formed construction.