CN221347776U - Differential mechanism assembly of pure electric vehicle - Google Patents

Abstract

The utility model discloses a differential mechanism assembly of a pure electric vehicle, which comprises a driven large gear, a planetary gear and a sun gear, wherein the planetary gear and the sun gear are oppositely arranged and are in meshed connection, a connecting plate is arranged on the driven large gear, the planetary gear is rotationally connected to the connecting plate, two sliding grooves are formed in the connecting plate, the two sliding grooves are oppositely arranged, the sliding grooves are obliquely arranged, a sliding block is connected in the sliding grooves in a sliding manner, a moving groove is formed in the sliding block, a moving block is connected in the sliding manner, a pressure cylinder is arranged on the connecting plate, and the output end of the pressure cylinder is connected with the moving block. Through the matching arrangement of the sliding groove and the sliding block, when the automobile turns, the sliding block can contact friction with the sun gear at the inner side, so that the rotation of the sun gear at the inner side is reduced, the turning angle of the automobile is reduced, and the practicability is improved; through the arrangement of the pressure cylinder, the inside sliding block can automatically slide during turning, so that the inside sliding block can be in abutting friction with the sun gear.

Description

Differential mechanism assembly of pure electric vehicle

Technical Field

The utility model relates to the technical field of differential mechanism assemblies, in particular to a differential mechanism assembly of a pure electric vehicle.

Background

Electric vehicles are widely used because they are noiseless, do not exhaust, are easy to maintain, are easy to operate, and have excellent traction performance, but because electric vehicles require a lot of power to supply energy, the space utilization of the vehicle is very critical to fuel vehicles. The running system of the electric vehicle includes an axle, wheels, a frame, and a suspension, and a drive motor transmits power to the wheels via a reduction gearbox, a differential, and a transaxle.

The existing differential mechanism is usually meshed with a sun gear through a planetary gear, so that the sun gear drives a tire to rotate, and the turning function of an automobile is realized.

In the prior art, when an automobile turns, a tire is driven to rotate through a sun gear rotating on the outer side, the sun gear rotating on the outer side and a sun gear not rotating on the inner side are kept stable through a planetary gear rotating on the inner side, but the sun gear on the inner side can possibly rotate under the driving of the tire, so that the turning radian of the automobile is increased, and therefore, a pure electric automobile differential assembly with a braking mechanism needs to be designed.

Disclosure of utility model

Based on the foregoing, it is necessary to provide a differential assembly for a pure electric vehicle.

In order to achieve the above purpose, the utility model provides a differential mechanism assembly of a pure electric vehicle, which comprises a driven large gear, a planetary gear and a sun gear, wherein the planetary gear and the sun gear are oppositely arranged and are in meshed connection, a connecting plate is arranged on the driven large gear, the planetary gear is rotatably connected on the connecting plate, the connecting plate is provided with two sliding grooves, the two sliding grooves are oppositely arranged, the sliding grooves are obliquely arranged, a sliding block is connected in the sliding grooves in a sliding manner, a moving groove is arranged on the sliding block, a moving block is connected in the sliding manner in the moving groove, a pressure cylinder is arranged on the connecting plate, the output end of the pressure cylinder is connected with the moving block, the sliding block is matched with the sun gear, the differential mechanism assembly also comprises an annular pressure cylinder, an annular plate is connected on the annular pressure cylinder in a rotating and sealing manner, an output pipe is arranged on the annular plate and is communicated with the pressure cylinder, an input pipe is arranged on the annular pressure cylinder, and the input pipe is communicated with a pressure source.

Preferably, the planetary gear further comprises a differential shell, wherein the differential shell is positioned outside the planetary gear and the sun gear, the annular pressure cylinder is arranged on the differential shell, and an input pipe orifice is arranged on the differential shell.

Preferably, the automatic transmission further comprises a driving gear, the driving gear is connected with the driven large gear in a meshed mode, and a power shaft is arranged on the driving gear.

Preferably, the slide block is provided with a wear-resisting block.

Preferably, the sliding block is rotationally connected with a bolt, and the bolt is in threaded connection with the wear-resistant block.

Preferably, the sun gear is provided with a wear-resistant layer, and the wear-resistant layer is matched with the wear-resistant block.

Compared with the prior art, the technical scheme has at least one of the following beneficial effects:

Through the matching arrangement of the sliding groove and the sliding block, when the automobile turns, the sliding block can contact friction with the sun gear at the inner side, so that the rotation of the sun gear at the inner side is reduced, the turning angle of the automobile is reduced, and the practicability is improved;

Through the arrangement of the pressure cylinder, the inside sliding block can automatically slide during turning, so that the inside sliding block can be in abutting friction with the sun gear.

Drawings

FIG. 1 is a front cross-sectional view of an embodiment of the present utility model;

FIG. 2 is an enlarged view of FIG. 1A according to an embodiment of the present utility model;

FIG. 3 is a perspective view of an embodiment of the present utility model;

FIG. 4 is a perspective view of a differential carrier in accordance with an embodiment of the utility model;

In the figure, 1, a driven large gear; 2. a planetary gear; 3. a sun gear; 4. a connecting plate; 5. a sliding groove; 6. a slide block; 7. a moving groove; 8. a moving block; 9. a pressure cylinder; 10. an annular pressure cylinder; 11. an annular plate; 12. an output pipe; 13. an input tube; 14. a differential case; 15. an input pipe orifice; 16. a drive gear; 17. a power shaft; 18. a wear block; 19. a bolt; 20. and a wear-resistant layer.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1 to 4, an embodiment of the present application provides a differential assembly of a pure electric vehicle, which includes a driven large gear 1, a planetary gear 2, and a sun gear 3, wherein the planetary gear 2 and the sun gear 3 are oppositely disposed and engaged, two connection plates 4 are mounted on the driven large gear 1, the planetary gear 2 is rotatably connected to the connection plates 4, one of the connection plates 4 is provided with two sliding grooves 5, the two sliding grooves 5 are oppositely disposed, the sliding grooves 5 are obliquely disposed, a sliding block 6 is slidably connected in the sliding groove 5, a moving groove 7 is disposed on the sliding block 6, a moving block 8 is slidably connected in the moving groove 7, a double-head hydraulic cylinder having two telescopic ends and one telescopic end extending and contracting the other telescopic end is mounted on the connection plate 4, the sliding block 6 is matched with the sun gear 3, an annular pressure cylinder 10 is rotatably and hermetically connected to the annular plate 11, the annular plate 11 is mounted with an output pipe 12, the output pipe 12 is communicated with the pressure cylinder 9, an input pipe 13 is mounted on the annular pressure cylinder 10, and the input pipe 13 is communicable with a pressure source.

In this embodiment, when the automobile is running straight, the driven large gear 1 drives the meshing mechanism of the planet gear 2 and the sun gear 3 through the connecting plate 4 to rotate around the center of the driven large gear 1, the planet gear 2 and the sun gear 3 do not mesh and rotate, and when the automobile turns, the rotation speed of the sun gear 3 connected with the tire on the outer side of the automobile is greater than the rotation speed of the sun gear 3 connected with the tire on the inner side of the automobile through the angle adjustment of the automobile tire, and the sun gears 3 with different rotation speeds can drive the meshed planet gears 2 to rotate, so that the turning of the automobile is completed. During turning, the pressure source is input into the pressure cylinder 9 through the input pipe 13, so that the pressure cylinder 9 can drive the sliding block 6 to move through the moving block 8, the sliding block 6 on the outer side is far away from the sun gear 3 on the outer side, and the sliding block 6 on the inner side is in abutting friction with the sun gear 3 on the inner side. Through the sliding tray 5 that inclines to set up for when slider 6 kept away from sun gear 3, can carry out the lifting, the dismantlement repair of sun gear 3 and connecting axle of being convenient for. Slide in the travel groove 7 through slider 8 for slider 6 moves in the travel groove 5, and slider 8 moves in travel groove 7 simultaneously, makes the output of pneumatic cylinder 9 be connected with slider 8 all the time, avoids the damage to pneumatic cylinder 9. The annular plate 11 is in rotary sealing connection with the annular pressure cylinder 10, so that the pressure cylinder 9 on the connecting plate 4 can always communicate with the annular pressure cylinder 10 via the inlet pipe 13 when rotating.

In some embodiments, to facilitate the installation of the annular pressure cylinder 10 and the input of the pressure source, a differential case 14 is further provided, the differential case 14 is located outside the planetary gears 2 and the sun gear 3, the annular pressure cylinder 10 is installed on the differential case 14, and an input pipe orifice 15 is provided on the differential case 14.

In some embodiments, to facilitate driving the driven large gear 1, a driving gear 16 is further provided, the driving gear 16 is in meshed connection with the driven large gear 1, and a power shaft 17 is mounted on the driving gear 16.

In some embodiments, to improve the wear resistance of the slider 6, a wear block 18 is provided on the slider 6.

In some embodiments, to facilitate replacement of the wear block 18, a bolt 19 is rotatably connected to the slider 6, and the bolt 19 is screwed with the wear block 18.

In some embodiments, to improve the wear resistance of the sun gear 3, a wear layer 20 is provided on the sun gear 3, and the wear layer 20 is matched with the wear block 18.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Claims (6)

1. The utility model provides a pure electric vehicle differential mechanism assembly, includes driven gear (1), planetary gear (2), sun gear (3), planetary gear (2) are the subtend setting and meshing is connected with sun gear (3), install connecting plate (4) on driven gear (1), planetary gear (2) rotate and connect on connecting plate (4), its characterized in that, connecting plate (4) are equipped with two sliding tray (5), two sliding tray (5) subtend sets up, and sliding tray (5) are the slope setting, and sliding connection has slider (6) in sliding tray (5), are equipped with on slider (6) and remove groove (7), and sliding connection has movable block (8) in removal groove (7), installs pneumatic cylinder (9) on connecting plate (4), and the output of pneumatic cylinder (9) is connected with movable block (8), and slider (6) are provided with sun gear (3) cooperation, still include annular pneumatic cylinder (10), rotate on annular pressure cylinder (10) and seal and be connected with annular plate (11), install output tube (12) on annular plate (11), output tube (12) and pneumatic cylinder (13) are connected with input tube (13) on the pneumatic cylinder (13).

2. The pure electric vehicle differential assembly according to claim 1, further comprising a differential case (14), wherein the differential case (14) is located outside the planetary gear (2) and the sun gear (3), the annular pressure cylinder (10) is mounted on the differential case (14), and an input pipe orifice (15) is provided on the differential case (14).

3. The pure electric vehicle differential assembly according to claim 1, further comprising a driving gear (16), wherein the driving gear (16) is in meshed connection with the driven gearwheel (1), and a power shaft (17) is mounted on the driving gear (16).

4. The electric vehicle differential assembly of claim 1, characterized in that the slider (6) is provided with wear blocks (18).

5. The pure electric vehicle differential assembly according to claim 4, wherein the sliding block (6) is rotatably connected with a bolt (19), and the bolt (19) is in threaded connection with the wear-resistant block (18).

6. The pure electric vehicle differential assembly according to claim 4, wherein the sun gear (3) is provided with a wear-resistant layer (20), and the wear-resistant layer (20) is matched with the wear-resistant block (18).