CN211924835U

CN211924835U - Differential mechanism assembly

Info

Publication number: CN211924835U
Application number: CN202022080812.5U
Authority: CN
Inventors: 曹栋斌; 王晓东
Original assignee: Shandong Shilihe Precision Machinery Co ltd
Current assignee: Shandong Shilihe Precision Machinery Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2020-11-13
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a differential mechanism assembly, which comprises a shell, wherein the shell is internally and rotatably connected with a second planet wheel, a first planet wheel and an outer gear, the shell is internally and fixedly connected with a sun wheel at the opposite side of the outer gear, the sun wheel, the second planet wheel, the outer gear and the first planet wheel are meshed, one side of the sun wheel, which is far away from the outer gear, is fixedly connected with a fixed shaft, one side of the outer gear, which is far away from the sun wheel, is fixedly connected with a movable shaft, one side of the shell is provided with a driving bevel gear, the fixed shaft is slidably connected at the center of the inside of the driving bevel gear, a large amount of lubricating oil is arranged in a lubricating oil cover and is communicated with the inside of the shell through small holes, when the differential mechanism rotates at high speed, the lubricating oil can be concentrated in the lubricating oil cover due to the centrifugal force, the gear is lubricated, so that the gear is always in a lubricated state, and the occurrence of the gear gluing condition is reduced.

Description

Differential mechanism assembly

Technical Field

The utility model relates to a differential mechanism field especially relates to a differential mechanism assembly.

Background

The automobile differential mechanism can realize a mechanism that left and right (or front and rear) driving wheels rotate at different rotating speeds. Mainly comprises a left half shaft gear, a right half shaft gear, two planet gears and a gear carrier. The function is that when the automobile turns or runs on an uneven road surface, the left wheel and the right wheel roll at different rotating speeds, namely, the pure rolling motion of the driving wheels at two sides is ensured. The differential is provided for adjusting the difference in the rotational speeds of the left and right wheels. In four-wheel drive, all the wheels must be connected to drive four wheels, if the four wheels are mechanically connected, the vehicle cannot rotate at the same speed when the vehicle runs on a curve, and in order to make the curve running rotation speed of the vehicle substantially consistent, an intermediate differential is added to adjust the rotation speed difference between the front wheel and the rear wheel.

In the operation process of the existing differential, due to gear meshing, heat is generated among gears due to friction, and the heat is difficult to dissipate, so that lubricating oil is lost quickly, the gears are easy to generate gluing failure, and the performance of a vehicle is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a differential mechanism assembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a differential mechanism assembly comprises a shell, wherein the shell is internally and rotatably connected with a second planet wheel, a first planet wheel and an outer gear, the shell is internally and fixedly connected with a sun wheel at the opposite side of the outer gear, the sun wheel, the second planet wheel, the outer gear and the first planet wheel are meshed, one side of the sun wheel, which is far away from the outer gear, is fixedly connected with a fixed shaft, one side of the outer gear, which is far away from the sun wheel, is fixedly connected with a movable shaft, one side of the shell is provided with a driving bevel gear, the fixed shaft is slidably connected at the inner center of the driving bevel gear, the other end of the fixed shaft is fixedly connected with a universal coupling, the other end of the universal coupling is fixedly connected with an output shaft, the center of the output shaft is rotatably connected with a buffer, gaskets are arranged, and the periphery of the shell is provided with a lubricating oil cover, and the center of one side of the shell, which is far away from the driving bevel gear, is fixedly provided with an oil scraper ring.

As a further description of the above technical solution:

the other end fixedly connected with universal joint of loose axle, universal joint's the other end fixedly connected with output shaft, the center department of output shaft rotates and is connected with the buffer.

As a further description of the above technical solution:

the bottom of lubricating oil cover is provided with the through-hole, the through-hole link up to the inside of casing.

As a further description of the above technical solution:

and a through hole is formed between the oil slinger and the shell, and the oil slinger is arranged on the outer side of the movable shaft.

As a further description of the above technical solution:

the movable shaft is rotatably connected with the shell, and a sliding bearing is arranged at the rotary connection position of the movable shaft and the shell.

As a further description of the above technical solution:

the sliding connection part of the fixed shaft and the driving bevel gear is provided with a sliding chute, and the nut is fixedly connected with the fixed shaft through threads.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up the lubricating oil cover, set up a large amount of lubricating oil in the lubricating oil cover to inside lining up the casing through the aperture, when the high-speed rotation of differential mechanism, because centrifugal force, lubricating oil can concentrate on in the lubricating oil cover, when the differential mechanism stall, lubricating oil can flow out from the aperture, lubricate the gear, make the gear be in a lubricated state all the time, reduce the emergence of the gear veneer condition.

2. The utility model discloses a set up the oil scraper ring, when lubricating oil exudes from slide bearing, live the lubricating oil pocket through the oil scraper ring, reduce the pollution of lubricating oil.

Drawings

Fig. 1 is a schematic view of an overall structure of a differential assembly according to the present invention;

FIG. 2 is a schematic view of a drive bevel gear of a differential assembly according to the present invention;

fig. 3 is a schematic view of an oil retainer ring of the differential assembly according to the present invention.

Illustration of the drawings:

1. a housing; 2. a lubricating oil cover; 3. a drive bevel gear; 4. a gasket; 5. a nut; 6. a universal coupling; 7. an output shaft; 8. a buffer; 9. a fixed shaft; 10. a sun gear; 11. a first planet gear; 12. a second planet wheel; 13. an outer gear; 14. a movable shaft; 15. and an oil scraper ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a differential mechanism assembly comprises a shell 1, wherein a second planet wheel 12, a first planet wheel 11 and an external gear 13 are rotatably connected in the shell 1, a sun wheel 10 is fixedly connected in the shell 1 on the opposite side of the external gear 13, the sun wheel 10 is in a central position, the sun wheel 10 only rotates and does not revolve, the sun wheel 10, the second planet wheel 12, the external gear 13 and the first planet wheel 11 are meshed, the second planet wheel 12 and the first planet wheel 11 are arranged between the sun wheel 10 and the external gear 13 and revolve around the sun wheel 10 while rotating, when the rotating speeds of the sun wheel 10 and the external gear 13 are the same, the planet wheel only revolves and does not rotate, the transmission is carried out in such a way, the rotating speed of the external gear 13 mainly depends on the steering angle of a vehicle and the rotating speed of the sun wheel 10, a fixed shaft 9 is fixedly connected on the side of the sun wheel 10, which is far away from the external gear 13, a, one side of the shell 1 is provided with a driving bevel gear 3, a fixed shaft 9 is connected at the center of the interior of the driving bevel gear 3 in a sliding manner, the other end of the fixed shaft 9 is fixedly connected with a universal coupling 6 and used in cooperation with a buffer 8, the other end of the universal coupling 6 is fixedly connected with an output shaft 7, the center of the output shaft 7 is rotatably connected with the buffer 8, the peripheral side of the fixed shaft 9 is provided with a gasket 4, one side of the gasket 4, which is far away from the driving bevel gear 3, is provided with a nut 5, the peripheral side of the, a large amount of lubricating oil is provided in the lubricating oil cover 2 and penetrates into the housing 1 through a small hole, and when the differential rotates at a high speed, due to the centrifugal force, the lubricating oil will collect in the lubricating oil cover 2, and when the differential stops rotating, the lubricating oil will flow out from the small hole, the gear is lubricated, and an oil retainer ring 15 is fixedly arranged at the center of one side of the shell 1, which is far away from the driving bevel gear 3.

The other end of the movable shaft 14 is fixedly connected with a universal coupling 6, the other end of the universal coupling 6 is fixedly connected with an output shaft 7, and the center of the output shaft 7 is rotatably connected with a buffer 8. The bottom end of the lubricating oil cover 2 is provided with a through hole which penetrates through the inside of the shell 1. A through hole is provided between the slinger 15 and the housing 1, and the slinger 15 is provided outside the movable shaft 14. The movable shaft 14 is rotatably connected to the housing 1, and the movable shaft 14 is provided with a sliding bearing at the rotational connection with the housing 1. The sliding connection part of the fixed shaft 9 and the driving bevel gear 3 is provided with a sliding chute, and the nut 5 is fixedly connected with the fixed shaft 9 through threads.

The working principle is as follows: through setting up lubricating oil cover 2, set up a large amount of lubricating oil in lubricating oil cover 2 to link up inside casing 1 through the aperture, when the high-speed rotation of differential mechanism, because centrifugal force, lubricating oil can concentrate on lubricating oil cover 2, when differential mechanism stall, lubricating oil can flow out from the aperture, lubricate the gear, make the gear be in a lubricated state all the time, reduce the emergence of gear veneer condition.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A differential assembly comprising a casing (1), characterized in that: the inner part of the shell (1) is rotatably connected with a second planet wheel (12), a first planet wheel (11) and an outer gear (13), the inner part of the shell (1) is fixedly connected with a sun wheel (10) at the opposite side of the outer gear (13), the sun wheel (10), the second planet wheel (12), the outer gear (13) and the first planet wheel (11) are meshed, one side of the sun wheel (10) departing from the outer gear (13) is fixedly connected with a fixed shaft (9), one side of the outer gear (13) departing from the sun wheel (10) is fixedly connected with a movable shaft (14), one side of the shell (1) is provided with a driving bevel gear (3), the fixed shaft (9) is slidably connected at the inner center of the driving bevel gear (3), the other end of the fixed shaft (9) is fixedly connected with a universal coupling (6), and the other end of the universal coupling (6) is fixedly, the utility model discloses a novel gear pump, including output shaft (7), fixed axle (9), the output shaft center department rotates and is connected with buffer (8), the week side of fixed axle (9) is provided with packing ring (4), one side that packing ring (4) deviate from drive bevel gear (3) is provided with nut (5), the week side of casing (1) is provided with lubricating oil cover (2), casing (1) is in the fixed oil scraper ring (15) that is provided with of one side center department that deviates from drive bevel gear (3).

2. A differential assembly according to claim 1, wherein: the other end fixedly connected with universal joint (6) of loose axle (14), the other end fixedly connected with output shaft (7) of universal joint (6), the center department of output shaft (7) rotates and is connected with buffer (8).

3. A differential assembly according to claim 1, wherein: the bottom end of the lubricating oil cover (2) is provided with a through hole which penetrates through the shell (1).

4. A differential assembly according to claim 1, wherein: a through hole is formed between the oil slinger (15) and the shell (1), and the oil slinger (15) is arranged on the outer side of the movable shaft (14).

5. A differential assembly according to claim 1, wherein: the movable shaft (14) is rotatably connected with the shell (1), and a sliding bearing is arranged at the rotary connection position of the movable shaft (14) and the shell (1).

6. A differential assembly according to claim 1, wherein: the sliding connection part of the fixed shaft (9) and the driving bevel gear (3) is provided with a sliding groove, and the nut (5) is fixedly connected with the fixed shaft (9) through threads.