Drive axle differential assembly

Abstract

The utility model discloses a drive axle differential assembly which comprises a front shell, an input shaft, a rear shell and an output shaft, the input shaft is movably installed on the front shell in an inserted mode, the rear shell is movably installed on the front shell, the output shaft is movably installed on the rear shell in an inserted mode, and a maintenance structure is arranged on the rear shell. The sealing cover plate is used for being connected with the rear shell and shielding the access hole, the annular turnup is connected with the annular mounting groove in an inserted mode, and the annular sealing face is matched with the attaching face, so that secondary sealing of the access hole is achieved, dust is prevented from entering the position between the rear shell and the front shell from the access hole, and the service life of the access hole is prolonged under the condition that the whole is not disassembled. The sealing cover plate is detached from the rear shell, the access hole is exposed, the interior of the rear shell can be observed through the access hole, an operator can conveniently observe and overhaul the interior of the differential mechanism, operation is easy and convenient, the operator can conveniently find the problems of the differential mechanism in time, and normal work of the differential mechanism is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to differential mechanism technical field, concretely is a drive axle differential mechanism assembly. BACKGROUND

[0002] The drive axle differential mechanism is an important component in the automobile or other motor vehicles, and it is responsible for transmitting power from the engine to the wheels to drive the vehicle forward. The differential mechanism is a key element in the drive axle, and its main function is to transmit power to the two half shafts. In the actual use of the differential mechanism, the differential mechanism needs to be disassembled as a whole to observe the working state of the internal components of the differential mechanism shell, which is inconvenient to operate, so it is not convenient to supervise the working state of the differential mechanism at any time, and it is not convenient to find problems in time. Only when a fault occurs, the differential mechanism is disassembled, and the internal differential mechanism is repaired, which can easily affect the normal work of the differential mechanism.

[0003] In view of the above problems, there may be technical means to solve in the prior art, but the present case wants to provide an alternative or replacement technical scheme. INVENTION CONTENTS

[0004] In order to solve the problems proposed in the background art, the utility model realizes the following technical scheme: a drive axle differential mechanism assembly, comprising a front shell, an input shaft, a rear shell and an output shaft, the input shaft is movably inserted into the front shell, the rear shell is movably installed on the front shell, the output shaft is movably inserted into the rear shell, and the rear shell is provided with a maintenance structure.

[0005] The maintenance structure comprises a maintenance opening, the maintenance opening is provided on the rear shell, a closing cover plate is movably installed on the rear shell, the closing cover plate is composed of an annular flange, an annular mounting surface, an annular sealing surface and a disc type shielding surface, an annular mounting groove is formed on the rear shell, the annular flange is movably inserted into the annular mounting groove, the annular mounting surface is arranged at one end of the annular flange, and the annular mounting surface is movably attached to the rear shell, the annular sealing surface is arranged at one end of the annular mounting surface, the cross section shape of the annular sealing surface is C type structure, a matching surface matched with the annular sealing surface is formed on the rear shell, and the disc type shielding surface is filled at one end of the annular sealing surface.

[0006] Preferably, the rear shell and the front shell are connected by first bolts.

[0007] Preferably, the annular mounting surface is penetrated by second bolts, and one end of the second bolts is inserted into the rear shell.

[0008] Preferably, a rubber pad is installed on the inner wall surface of the closing cover plate.

[0009] Preferably, the disc type shielding surface corresponds to the maintenance opening.

[0010] Preferably, the closing cover plate is an integral structure.

[0011] Advantages

[0012] The utility model provides a kind of drive axle differential assembly, compared with prior art, with following beneficial effects: closing cover plate is used to be connected with rear shell and the shielding of access hole, annular flanging and the matching of annular sealing surface and the surface of sticking, play the secondary sealing of access hole, prevent dust from access hole part between rear shell and front shell, under the condition of not disassembling whole, closing cover plate is disassembled from rear shell, expose access hole, the inside of rear shell can be observed by access hole, it is convenient for operator to observe and overhaul the inside of differential, it is easy to operate, it is convenient for operator to find the problem of differential in time, guarantee differential normal work. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is three-dimensional structure schematic view of the utility model a kind of drive axle differential assembly.

[0014] Fig. 2 It is side view sectional structure schematic view of the utility model a kind of drive axle differential assembly.

[0015] Fig. 3 It is main view structure schematic view of the utility model a kind of drive axle differential assembly.

[0016] In the drawing: 1, front shell, 2, input shaft, 3, rear shell, 4, output shaft, 5, access hole, 6, annular flanging, 7, annular mounting surface, 8, annular sealing surface, 9, disc type shielding surface, 10, surface of sticking, 11, first bolt, 12, second bolt, 13, rubber pad. DETAILED DESCRIPTION

[0017] Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0018] Embodiment: please refer to Figs. 1-3 In order to solve the inconvenience of overhaul caused by disassembling differential whole, leading to not being able to find the problem existing in differential inside in time, therefore, design this technical scheme, detailed technical scheme is as follows:

[0019] A kind of drive axle differential assembly, including front shell 1, input shaft 2, rear shell 3 and output shaft 4, input shaft 2 is movably inserted in front shell 1, rear shell 3 is movably installed in front shell 1, output shaft 4 is movably inserted in rear shell 3, and access structure is provided on rear shell 3;

[0020] It needs to be explained that the front shell 1 and the rear shell 3 are provided with a transmission gear set, the transmission gear set is connected with the input shaft 2 and the output shaft 4, the differential function is realized, and the structure and working principle of the transmission gear set of the differential are prior art, so they are not drawn in the figure;

[0021] Specifically, the maintenance structure comprises a maintenance opening 5, the maintenance opening 5 is provided on the rear shell 3, a closing cover plate is movably mounted on the rear shell 3, the closing cover plate is composed of a ring-shaped flange 6, a ring-shaped mounting surface 7, a ring-shaped sealing surface 8 and a disc-shaped shielding surface 9, a ring-shaped mounting groove is provided on the rear shell 3, the ring-shaped flange 6 is movably inserted into the ring-shaped mounting groove, the ring-shaped mounting surface 7 is arranged at one end of the ring-shaped flange 6 and movably attached to the rear shell 3, the ring-shaped sealing surface 8 is arranged at one end of the ring-shaped mounting surface 7, the cross-sectional shape of the ring-shaped sealing surface 8 is a C-shaped structure, a matching surface 10 is provided on the rear shell 3 and matches the ring-shaped sealing surface 8, and the disc-shaped shielding surface 9 is filled at one end of the ring-shaped sealing surface 8;

[0022] It needs to be explained that the closing cover plate is used for connecting with the rear shell 3 and shielding the maintenance opening 5, the ring-shaped flange 6 is movably inserted into the ring-shaped mounting groove, the ring-shaped sealing surface 8 matches the matching surface 10, and the maintenance opening 5 is sealed twice, so that dust cannot enter the part between the rear shell 3 and the front shell 1 from the maintenance opening 5, the closing cover plate is removed from the rear shell 3 under the condition that the whole is not disassembled, the maintenance opening 5 is exposed, the inside of the rear shell 3 can be observed through the maintenance opening 5, the inside of the differential can be observed and maintained by the operator, the operation is simple and convenient, the operator can timely find the problems of the differential, and the normal work of the differential is ensured;

[0023] As a preferred, further, the rear shell 3 and the front shell 1 are connected by a first bolt 11, and are used for fixedly mounting the rear shell 3 and the front shell 1;

[0024] As a preferred, further, a second bolt 12 is inserted into the rear shell 3 at one end of the ring-shaped mounting surface 7, and is used for fixedly mounting the closing cover plate and the rear shell 3;

[0025] As a preferred, further, a rubber pad 13 is mounted on the inner wall surface of the closing cover plate, and is used for increasing the sealing between the closing cover plate and the rear shell 3;

[0026] As a preferred, further, the disc-shaped shielding surface 9 corresponds to the maintenance opening 5;

[0027] As a preferred, further, the closing cover plate is an integral structure.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drive axle differential assembly comprising a front housing (1), an input shaft (2), a rear housing (3) and an output shaft (4), the input shaft (2) being movably mounted in the front housing (1), the rear housing (3) being movably mounted in the front housing (1), the output shaft (4) being movably mounted in the rear housing (3), characterized in that The rear shell (3) is provided with an inspection structure; The inspection structure comprises an inspection opening (5) formed on the rear shell (3), and a closing cover plate movably mounted on the rear shell (3), wherein the closing cover plate comprises an annular flange (6), an annular mounting surface (7), an annular sealing surface (8) and a disc-shaped shielding surface (9), an annular mounting groove is formed on the rear shell (3), the annular flange (6) is movably inserted into the annular mounting groove, the annular mounting surface (7) is arranged at one end of the annular flange (6) and movably attached to the rear shell (3), the annular sealing surface (8) is arranged at one end of the annular mounting surface (7), the annular sealing surface (8) has a C-shaped cross section, a matching surface (10) is formed on the rear shell (3) and matched with the annular sealing surface (8), and the disc-shaped shielding surface (9) is filled at one end of the annular sealing surface (8).

2. A drive axle differential assembly as in claim 1, wherein, The rear shell (3) is connected with the front shell (1) through the first bolt (11).

3. A drive axle differential assembly as in claim 1, wherein, The second bolt (12) is inserted into the rear shell (3) at one end.

4. A drive axle differential assembly as in claim 1, wherein, The rubber pad (13) is mounted on the inner wall surface of the closing cover plate.

5. A drive axle differential assembly as in claim 1, wherein, The disc-shaped shielding surface (9) is corresponded with the inspection opening (5).

6. A drive axle differential assembly as in claim 1, wherein, The closing cover plate is an integral structure.

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