CN213541225U

CN213541225U - Open differential mechanism

Info

Publication number: CN213541225U
Application number: CN202022333780.5U
Authority: CN
Inventors: 白金砖
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-25
Anticipated expiration: 2030-10-20

Abstract

The utility model relates to an open differential mechanism belongs to machinery. The utility model discloses a left side planet gear support, right side planet gear support, input shaft, output shaft, differential gear and differential axle, all install planetary gear on left side planet gear support and the right side planet gear support, input shaft and output shaft all cooperate with planetary gear, left side planet gear support and right side planet gear support all cooperate with the differential gear, the one end and the differential gear of differential axle are connected. The open differential mechanism has the advantages of good installation, convenient control and the like for controlling the left planetary gear bracket and the right planetary gear bracket.

Description

Open differential mechanism

Technical Field

The utility model relates to an open differential mechanism belongs to machinery.

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. The differential mechanism in the prior art is inconvenient to control the differential speed of the output shaft on a paved road surface and is inconvenient to install and control.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide an open differential mechanism that structural design is reasonable, convenient control, be convenient for install, practice thrift the cost.

The utility model provides a technical scheme that above-mentioned problem adopted is: the open differential mechanism is characterized in that: the planetary gear transmission mechanism comprises a left planetary gear support, a right planetary gear support, an input shaft, an output shaft, a differential gear and a differential shaft, wherein the left planetary gear support and the right planetary gear support are respectively provided with a planetary gear, the input shaft and the output shaft are respectively matched with the planetary gear, the left planetary gear support and the right planetary gear support are respectively matched with the differential gear, and one end of the differential shaft is connected with the differential gear. The open differential mechanism has the advantages of good installation, convenient control and the like for controlling the left planetary gear bracket and the right planetary gear bracket.

Furthermore, the left planetary gear bracket comprises a left bevel gear and a left gear mounting disc, and a planetary gear is mounted between the left bevel gear and the left gear mounting disc

Further, the right planetary gear support comprises a right bevel gear and a right gear mounting disc, and a planetary gear is mounted between the right bevel gear and the right gear mounting disc.

Further, the input shaft comprises an input shaft body, two ends of the input shaft body are respectively provided with an input shaft gear, and the two input shaft gears are respectively meshed with the planetary gears arranged on the left planetary gear bracket and the right planetary gear bracket.

Further, the input shaft still includes the input shaft connection pad, the input shaft connection pad is installed on the input shaft body, be provided with the mounting hole on the input shaft connection pad.

Further, the output shaft comprises an output shaft body and an output shaft gear, the output shaft gear is installed at one end of the output shaft body, and the output shaft gear is meshed with the planetary gear.

Further, the number of the planetary gears is more than 3.

Further, the planetary gear comprises a planetary gear body and a planetary gear shaft, the planetary gear shaft is mounted on each of the left planetary gear support and the right planetary gear support, and the planetary gear body is mounted on the planetary gear shaft.

Compared with the prior art, the utility model has the advantages of it is following: the open differential controls the left planetary gear bracket and the right planetary gear bracket, the open differential is adopted to conveniently control the straight movement and the turning of a vehicle, the number of the planetary gears is controlled between 3 and 5, on one hand, the cost can be saved, and on the other hand, the input shaft gear, the output shaft gear and the planetary gear body can be ensured to have enough meshing surfaces so as to ensure that the input shaft gear, the output shaft gear and the planetary gear body have enough transmission force; the open type differential has the advantages of being easy to install and convenient to control.

Drawings

Fig. 1 is a schematic structural view of an open differential according to an embodiment of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure a-a in fig. 1.

Fig. 3 is a schematic perspective view of an open differential according to an embodiment of the present invention.

Fig. 4 is an exploded view of an open differential according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a right-view structure of an open differential according to an embodiment of the present invention.

Fig. 6 is a schematic view of a sectional structure B-B in fig. 5.

In the figure: a left planet gear bracket 1, a right planet gear bracket 2, an input shaft 3, an output shaft 4, a planet gear 5, a differential gear 6, a differential shaft 7,

A left bevel gear 11, a left gear mounting disc 12,

A right bevel gear 21, a right gear mounting plate 22,

An input shaft body 31, an input shaft gear 32, an input shaft connecting plate 33, a mounting hole 34,

An output shaft body 41, an output shaft gear 42,

A planetary gear body 51 and a planetary gear shaft 52.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples

Referring to fig. 1 to 6, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essence, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, in the present specification, if there are terms such as "upper", "lower", "left", "right", "middle" and "one", they are used for clarity of description only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered as the scope of the present invention without substantial changes in the technical content.

The open differential mechanism in the embodiment is used for controlling the straight movement or turning of the vehicle, and the straight movement or turning of the vehicle is controlled by controlling the left planetary gear bracket 1 and the right planetary gear bracket 2 in the open differential mechanism; the left and right planet gear carriers 1 and 2 may be used to control the left and right front wheels, and may also be used to control the left and right rear wheels.

The open differential mechanism in this embodiment includes a left planetary gear carrier 1, a right planetary gear carrier 2, an input shaft 3, an output shaft 4, a differential gear 6, and a differential shaft 7, wherein planetary gears 5 are mounted on the left planetary gear carrier 1 and the right planetary gear carrier 2, the input shaft 3 and the output shaft 4 are both engaged with the planetary gears 5, the left planetary gear carrier 1 and the right planetary gear carrier 2 are both engaged with the differential gear 6, and one end of the differential shaft 7 is normally connected to the differential gear 6.

The left planetary gear bracket 1 in this embodiment includes a left bevel gear 11 and a left gear mounting plate 12, the right planetary gear bracket 2 includes a right bevel gear 21 and a right gear mounting plate 22, and the planetary gears 5 are mounted between the left bevel gear 11 and the left gear mounting plate 12, and between the right bevel gear 21 and the right gear mounting plate 22.

The input shaft 3 in this embodiment includes an input shaft body 31 and an input shaft connecting plate 33, one input shaft gear 32 is mounted at each end of the input shaft body 31, the two input shaft gears 32 are respectively engaged with the planetary gears 5 mounted on the left planetary gear carrier 1 and the right planetary gear carrier 2, the input shaft connecting plate 33 is mounted on the input shaft body 31, and the input shaft connecting plate 33 is provided with a mounting hole 34 for facilitating gear mounting.

The output shaft 4 in this embodiment includes an output shaft body 41 and an output shaft gear 42, the output shaft gear 42 is mounted at one end of the output shaft body 41, the output shaft gear 42 is engaged with the planetary gear 5, the other end of the output shaft body 41 is connected with a wheel and a sprocket for driving a crawler, and a gap exists between the output shaft gear 42 and the input shaft gear 32.

The number of the planetary gears 5 in the present embodiment is 3 or more, and preferably, the number of the planetary gears 5 is 3 to 5, the planetary gears 5 include planetary gear bodies 51 and planetary gear shafts 52, the planetary gear shafts 52 are mounted on the left planetary gear carrier 1 and the right planetary gear carrier 2, and the planetary gear bodies 51 are mounted on the planetary gear shafts 52.

The control method of the open differential in the present embodiment is as follows:

the open differential is controlled to stop the rotation of the left planetary gear bracket 1 and the right planetary gear bracket 2, and the input shaft 3 and the output shaft 4 are matched through the planetary gear 5 to realize the straight movement of the vehicle; so as to realize no differential speed when the vehicle moves straight.

When the vehicle moves straight, the open differential is adopted to control the vehicle to be concretely as follows, the differential wheel 6 is controlled to stop rotating, so that the left bevel gear 11 and the right bevel gear 21 stop rotating; the input shaft gears 32 installed at both ends of the input shaft body 31 at this time drive the planetary gear bodies 51 to rotate, and the output shaft gears 42 installed on the output shaft body 41 are driven to rotate by the planetary gear bodies 51, thereby realizing the rotation of the output shaft body 41 to realize the straight movement of the vehicle.

The differential gear 6 stops rotating, so that the output shafts 4 on the two sides of the left planetary gear bracket 1 and the right planetary gear bracket 2 realize non-differential rotation, and further the output shafts 4 on the two sides realize anti-skid rotation.

And (II) controlling the vehicle to turn by adopting the open differential, controlling the open differential to enable the left planetary gear bracket 1 and the right planetary gear bracket 2 to rotate left and right, and matching the input shaft 3 and the output shaft 4 through the planetary gear 5 to realize the turning of the vehicle.

When the vehicle turns, the open differential is adopted to control the vehicle to rotate left and right by controlling the differential wheel 6 to realize the left and right rotation of the left bevel gear 11 and the right bevel gear 21; at this time, the input shaft gears 32 installed at both ends of the input shaft body 31 drive the planetary gear bodies 51 to rotate, the output shaft gears 42 installed on the output shaft bodies 41 are driven to rotate by the planetary gear bodies 51, when the vehicle turns left and right, the rotation speeds of the output shaft bodies 41 at both ends are different, the output shaft body 41 at the left end pushes the left planetary gear carrier 1 to rotate right, and the differential gear 6 rotates right, or the output shaft body 41 at the right end pushes the right planetary gear carrier 2 to rotate left, and the differential gear 6 rotates left, so that the vehicle turns.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. An open differential, characterized by: the planetary gear transmission mechanism comprises a left planetary gear support (1), a right planetary gear support (2), an input shaft (3), an output shaft (4), a differential gear (6) and a differential shaft (7), wherein planetary gears (5) are mounted on the left planetary gear support (1) and the right planetary gear support (2), the input shaft (3) and the output shaft (4) are matched with the planetary gears (5), the left planetary gear support (1) and the right planetary gear support (2) are matched with the differential gear (6), and one end of the differential shaft (7) is connected with the differential gear (6).

2. The open differential of claim 1, wherein: the left planetary gear support (1) comprises a left bevel gear (11) and a left gear mounting disc (12), and a planetary gear (5) is mounted between the left bevel gear (11) and the left gear mounting disc (12).

3. The open differential of claim 1, wherein: the right planetary gear support (2) comprises a right bevel gear (21) and a right gear mounting disc (22), and a planetary gear (5) is mounted between the right bevel gear (21) and the right gear mounting disc (22).

4. The open differential of claim 1, wherein: the input shaft (3) comprises an input shaft body (31), two ends of the input shaft body (31) are respectively provided with an input shaft gear (32), and the two input shaft gears (32) are respectively meshed with planetary gears (5) arranged on the left planetary gear bracket (1) and the right planetary gear bracket (2).

5. The open differential of claim 4, wherein: the input shaft (3) further comprises an input shaft connecting disc (33), the input shaft connecting disc (33) is installed on the input shaft body (31), and a mounting hole (34) is formed in the input shaft connecting disc (33).

6. The open differential of claim 1, wherein: the output shaft (4) comprises an output shaft body (41) and an output shaft gear (42), the output shaft gear (42) is installed at one end of the output shaft body (41), and the output shaft gear (42) is meshed with the planetary gear (5).

7. The open differential of claim 1, wherein: the number of the planetary gears (5) is more than 3.

8. The open differential of claim 1, wherein: the planetary gear (5) comprises a planetary gear body (51) and planetary gear shafts (52), the planetary gear shafts (52) are mounted on the left planetary gear support (1) and the right planetary gear support (2), and the planetary gear body (51) is mounted on the planetary gear shafts (52).