CN218326073U

CN218326073U - Integral type tricycle differential case

Info

Publication number: CN218326073U
Application number: CN202122021291.0U
Authority: CN
Inventors: ***; 徐波; 闫可; 徐静源; 苏利军
Original assignee: Jiangsu Jujie Electromechanical Co ltd
Current assignee: Jiangsu Jujie Electromechanical Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2023-01-17
Anticipated expiration: 2031-08-25

Abstract

The utility model discloses an integrated tricycle differential case, which comprises a left shell, a right shell, a motor shaft and a motor end cover, wherein the left shell is fixedly connected with the right shell through bolts, and an internal differential cavity is formed when the left shell is connected with the right shell; the motor end cover and the left shell are integrally formed, a shaft hole is formed in the motor end cover, a first gear is arranged at one end of a motor shaft, the motor shaft and the first gear are integrally formed, one end of the motor shaft, which is provided with the first gear, is inserted into the shaft hole, double connecting shafts driven by the motor shaft are installed in the middle of the differential cavity, and an output mechanism driven by the double connecting shafts is installed in the differential cavity in a rotating mode. This device realizes that the noise is little, the product uniformity is high, the outward appearance is small and exquisite, light in weight and reduce the advantage of driving load, and die-casting shaping between motor end cover and the left side casing, the structure is more firm, and one-time processing size precision is high.

Description

Integral type tricycle differential case

Technical Field

The utility model relates to an integral type tricycle differential case belongs to differential case technical field.

Background

Differential motor gear box is used for electric automobile, electric tricycle more, is the car drive and the transmission with the supporting use of differential motor, and electric motor car actuating system mainly constitutes the part, and traditional differential motor gear box is mostly the motor and separates with the differential case, and the motor shaft splices with the drive gear pressure equipment, and assembly error is great, influences the motor quality, and the production defective rate is high, and the abnormal sound proportion is big, and especially the manufacturing cost that unnecessary technology leads to is high, and the manufacturing loss is big.

SUMMERY OF THE UTILITY MODEL

To the problem that above-mentioned prior art exists, the utility model provides an integral type tricycle differential case can realize that installation error is little and with low costs integral type tricycle motor structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an integrated tricycle differential case comprises a left shell, a right shell, a motor shaft and a motor end cover, wherein the left shell and the right shell are fixedly connected through bolts, and an internal differential cavity is formed when the left shell and the right shell are connected;

the motor end cover and the left shell are integrally formed, a shaft hole is formed in the motor end cover, a first gear is arranged at one end of the motor shaft, the motor shaft and the first gear are integrally formed, one end, provided with the first gear, of the motor shaft is inserted into the shaft hole, double connecting shafts driven by the motor shaft are installed in the middle of the differential cavity, and an output mechanism driven by the double connecting shafts is installed in the differential cavity in a rotating mode.

Preferably, one end of the motor shaft inserted into the shaft hole is rotatably installed in the shaft hole through two bearings, and the two shaft holes are respectively installed in the left shell and the right shell.

Preferably, two ends of the double connecting shaft are rotatably installed inside the differential cavity through bearings respectively, a second gear is installed in the middle of the double connecting shaft, and the second gear and the double connecting shaft are integrally formed.

Preferably, the output mechanism comprises a gear ring and split shaft sleeves installed on two sides of the gear ring through bolts, the two split shaft sleeves and the axis of the gear ring are on the same straight line, and two ends of the two split shaft sleeves are respectively installed on two sides of the differential cavity through bearings in a rotating mode.

Preferably, the lower ends of the left shell and the right shell are respectively provided with a shaft hole, and the shaft holes and the axes of the gear rings are on the same straight line.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the device realizes the advantages of low noise, high product consistency, small and exquisite appearance, light weight and reduction of the load of a travelling crane by integrally installing the gears at the front end of the motor shaft.

2. The motor end cover and the left shell are formed by die casting, so that the structure is firmer, and the one-time processing size precision is high.

3. The perpendicularity of the motor shaft and the gear box can be guaranteed, and stress generated after the motor shaft is assembled is avoided.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an internal cross-sectional view of the present invention.

Description of the reference numerals:

1. the motor comprises a motor end cover, 2, a bearing, 3, a first gear, 4, a motor shaft, 5, a right shell, 6, a double-link shaft, 7, a gear ring, 8, a split shaft sleeve, 9, a through hole, 10, a second gear, 11, a differential cavity, 12 and a left shell.

Detailed Description

The technical solutions in the implementations of the present invention will be apparent from and fully described in conjunction with the accompanying drawings, which illustrate only some, but not all, embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 3, an embodiment of the present invention provides an integrated tricycle differential case, which includes a left casing 12, a right casing 5, a motor shaft 4 and a motor end cover 1, wherein the left casing 12 is fixedly connected to the right casing 5 through a bolt, and when the left casing 12 is connected to the right casing 5, an internal differential cavity 11, the left casing 12 and the right casing 5 are formed;

the motor end cover 1 and the left shell 12 are integrally formed, a middle connecting plate of the traditional differential motor is eliminated, the motor can be directly assembled with the differential case (a two-in-one structure is realized), the problem that the whole vehicle has high noise due to large size and slide tolerance errors generated by assembling independent finished products is avoided, a shaft hole is arranged in the motor end cover 1, a first gear 3 is arranged at one end of the motor shaft 4, the motor shaft 4 and the gear I3 are integrally formed, one end of the motor shaft 4 provided with the gear I3 is inserted into the shaft hole, one end of the motor shaft 4 inserted into the shaft hole is rotatably arranged in the shaft hole through two bearings 2, the two shaft holes are respectively arranged in the left shell 12 and the right shell 5, the rotation friction of the motor shaft 4 is small, the middle part of the differential cavity 11 is provided with a double connecting shaft 6 driven by a motor shaft 4, two ends of the double connecting shaft 6 are respectively rotatably arranged inside the differential cavity 11 through bearings 2, the middle part of the double connecting shaft 6 is provided with a gear II 10, the gear II 10 and the double connecting shaft 6 are integrally formed, the noise is low, the product consistency is high, the output mechanism driven by the double connecting shafts 6 is rotatably arranged in the differential cavity 11 and comprises a toothed ring 7 and split shaft sleeves 8 arranged on two sides of the toothed ring 7 through bolts, a wheel shaft of the electric vehicle is fixed with the split shaft sleeves 8 in a conventional fixing mode, the application does not specifically describe, the two split shaft sleeves 8 and the axis of the toothed ring 7 are on the same straight line, two ends of the two split shaft sleeves 8 are rotatably arranged on two sides of the differential cavity 11 through bearings 2 respectively, shaft holes are formed in the lower ends of the left shell 12 and the right shell 5, and the shaft holes and the axis of the gear ring 7 are on the same straight line and high in coaxiality.

Before the installation, motor shaft 4 adds the front end when processing and has integrated into one piece's installation gear 3, and motor, motor end cover 1 and left casing 12 have been assembled and accomplished, when assembling differential case and motor, opens differential chamber 11, installs inside bearing 2, double shaft 6 and output mechanism inside left casing 12 and right casing 5 respectively, again with left casing 12 and right casing 5 through the bolt fastening can.

When the device is used, the motor shaft 4 rotates to drive the output mechanism to rotate through the double connecting shaft 6, the output mechanism drives the wheel shaft inside the vehicle body to rotate, and through the integrated forming of the motor shaft 4 and the gear, the assembling error of the spliced combined gear can be avoided, and the advantages of firmness, noise reduction and long service life can be achieved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that the invention can be implemented in other specific forms without departing from the spirit and essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. An integrated tricycle differential case comprises a left shell (12), a right shell (5), a motor shaft (4) and a motor end cover (1), wherein the left shell (12) is fixedly connected with the right shell (5) through bolts, and an internal differential cavity (11) is formed when the left shell (12) is connected with the right shell (5);

the method is characterized in that: motor end cover (1) and left casing (12) integrated into one piece, the inside of motor end cover (1) is equipped with the shaft hole, the one end of motor shaft (4) is equipped with gear (3), motor shaft (4) and gear (3) integrated into one piece, the one end that motor shaft (4) were equipped with gear (3) inserts in the shaft hole, the mid-mounting of differential chamber (11) has through motor shaft (4) driven doubly-linked axle (6), the internal rotation of differential chamber (11) is installed through doubly-linked axle (6) driven output mechanism.

2. The differential case of one-piece tricycle as claimed in claim 1, wherein the end of the motor shaft (4) inserted into the shaft hole is rotatably mounted in the shaft hole through two bearings (2), and the two shaft holes are respectively mounted in the left casing (12) and the right casing (5).

3. The differential case of the integrated tricycle as claimed in claim 1, wherein two ends of the double connecting shaft (6) are rotatably mounted inside the differential chamber (11) through bearings (2), a second gear (10) is mounted in the middle of the double connecting shaft (6), and the second gear (10) and the double connecting shaft (6) are integrally formed.

4. The integrated tricycle differential case according to claim 3, characterized in that the output mechanism comprises a gear ring (7) and split shaft sleeves (8) which are installed on two sides of the gear ring (7) through bolts, the two split shaft sleeves (8) and the gear ring (7) are on the same straight line, and two ends of the two split shaft sleeves (8) are respectively installed on two sides of the differential cavity (11) through bearings (2) in a rotating mode.

5. The differential case of the integrated tricycle as claimed in claim 4, wherein shaft holes are formed at the lower ends of the left shell (12) and the right shell (5), and the shaft holes and the axis of the gear ring (7) are on the same straight line.