Commercial vehicle electric drive axle reducer and motor common shell assembly

Abstract

The utility model relates to the technical field of motor shells, in particular to a commercial vehicle electric drive axle reducer and motor common shell assembly which comprises a common shell body. The speed reducer cavity and the motor cavity are respectively arranged in the common shell body, the corresponding speed reducer and the motor are installed in the common shell body and are fixed by being screwed on the motor end cover and rotor assembly installation surface and the speed reducer cover assembly installation surface through the bolts, so that the speed reducer and the motor share one shell; the side portion of the motor shell is integrated with the axle housing installation face, the axle housing installation face is further provided with the gear ring support and the output shaft bearing cover, so that a transmission output piece of the speed reducer is located on the same shell, the whole shell is integrated, and compared with an existing shell, the motor shell and the speed reducer shell are split, part mold pieces are relatively reduced, and cost is reduced. And the manufacturing process is simpler, the integration degree is high, the rigidity is higher, and the phenomenon of shaking or breakage is not prone to occurring even under the severe working condition.

Description

Technical Field

[0001] This utility model relates to the field of motor housing technology, and in particular to a common housing assembly for a commercial vehicle electric drive axle reducer and motor. Background Technology

[0002] Currently, the housings of electric drive axle reducers and motors in commercial vehicles on the market are separate components. The motor housing and reducer housing are installed together by positioning with a stop and bolts.

[0003] The modular design requires a wider variety of molds for the components, and additional mounting flanges and bolts are needed for fastening. Furthermore, the separation of the motor housing and the reducer housing necessitates more end-face machining. Moreover, the required molds are heavy, increasing the weight and the cost of purchasing and manufacturing the components, thus increasing the initial investment. In addition, the motor is suspended on the reducer housing after installation, which can easily cause vibration or even breakage under harsh operating conditions, posing a significant safety hazard.

[0004] Based on the above background, a common housing assembly for the electric drive axle reducer and motor in commercial vehicles is proposed to solve the problem. Utility Model Content

[0005] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0006] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a commercial vehicle electric drive axle reducer and motor with a common housing assembly.

[0007] To achieve the above objectives, the technical solution of this utility model is: a commercial vehicle electric drive axle reducer and motor common housing assembly, comprising: a common housing body, a motor end cover with rotor assembly mounting surface, a reducer cover assembly mounting surface, an axle housing mounting surface, a gear ring bracket, and an output shaft bearing cover. The common housing body contains a reducer chamber and a motor chamber. The common housing body is an integrated structure with a motor end cover with rotor assembly mounting surface mounted on one side and a reducer cover assembly mounting surface mounted on the other side. The axle housing mounting surface is an integrated structure with the common housing body. A gear ring bracket and an output shaft bearing cover are respectively mounted on the axle housing mounting surface.

[0008] In some embodiments, the motor end cover with rotor assembly is also included, which is fixed in the motor chamber by the motor end cover with rotor assembly mounting surface.

[0009] In some embodiments, a reducer cover assembly is also included, which is fixedly installed in the reducer chamber via a reducer cover assembly mounting surface, and the reducer cover assembly is located on the side of the motor end cover with rotor assembly.

[0010] In some embodiments, a reducer oil inlet hole is provided on the housing body.

[0011] In some embodiments, a motor oil inlet hole is provided on the housing body.

[0012] In some embodiments, a gear ring is fitted inside the gear ring bracket, and an output shaft assembly is installed inside the gear ring.

[0013] In some embodiments, an output shaft bearing assembly is fitted inside the output shaft bearing cover.

[0014] In some embodiments, an oil pan assembly mounting surface is provided on the lower side of the common housing body.

[0015] In some embodiments, an electric oil pump is connected to the mounting surface of the oil pan assembly, and a heat exchanger assembly is mounted on one side of the electric oil pump.

[0016] In some embodiments, a boss is integrally provided on the side of the common housing body near the motor end cover with rotor assembly mounting surface, and a terminal block is installed on the boss.

[0017] By adopting the above technical solution, the beneficial effects of this utility model are as follows: The common housing body of this utility model is divided into a reducer chamber and a motor chamber. The corresponding reducer and motor are installed in the common housing body and fixed by bolts on the motor end cover with rotor assembly mounting surface and reducer cover assembly mounting surface, so that the reducer and motor share a housing. The side is integrated with the bridge housing mounting surface. The bridge housing mounting surface also has a gear ring bracket and an output shaft bearing cover, so that the transmission output component of the reducer is on a housing, thereby realizing the integration of the entire housing into one unit. Compared with the existing housing, the motor housing and reducer housing are separate, the number of component mold parts is relatively reduced, the manufacturing process is simpler, the integration is high, and the rigidity is stronger. Even under harsh working conditions, it is not easy to vibrate or break.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0019] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0020] To make the above-mentioned beneficial effects and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0022] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0024] Explanation of key figure labels:

[0025] Figure 1 This is a first-view structural schematic diagram of a commercial vehicle electric drive axle reducer and motor sharing a common housing assembly according to the present invention.

[0026] Figure 2 This is a second-view structural schematic diagram of the common housing assembly of the electric drive axle reducer and motor for commercial vehicles according to this utility model.

[0027] Figure 3 This utility model Figure 1 A schematic diagram of the assembled structure.

[0028] Figure 4 This utility model Figure 2 A schematic diagram of the structure after the viewpoint is assembled.

[0029] Explanation of main reference numerals: Common housing body -1, Motor end cover with rotor assembly mounting surface -2, Reducer cover assembly mounting surface -3, Axle housing mounting surface -4, Gear ring bracket -5, Output shaft bearing cover -6, Motor end cover with rotor assembly -7, Reducer cover assembly -8, Reducer oil inlet -9, Motor oil inlet -10, Gear ring -11, Output shaft assembly -12, Output shaft bearing assembly -13, Oil pan assembly mounting surface -14, Electronic oil pump -15, Heat exchanger assembly -16, Terminal block -17. Detailed Implementation

[0030] The following detailed description of the embodiments of this utility model, in conjunction with the accompanying drawings, will provide a thorough understanding of how this utility model uses technical means to solve technical problems and achieve technical effects, enabling its implementation. It should be noted that, provided there is no conflict, the various embodiments and features within them can be combined with each other, and all resulting technical solutions are within the protection scope of this utility model.

[0031] Furthermore, numerous specific details are set forth in the following description for illustrative purposes to provide a thorough understanding of the embodiments of this invention. However, it will be apparent to those skilled in the art that this invention may be practiced without the specific details or particular methods described herein.

[0032] Please see Figure 1-4 This utility model provides a commercial vehicle electric drive axle reducer and motor common housing assembly, including: common housing body 1, motor end cover with rotor assembly mounting surface 2, reducer cover assembly mounting surface 3, axle housing mounting surface 4, gear ring bracket 5, and output shaft bearing cover 6. The common housing body 1 is provided with a reducer chamber and a motor chamber. The common housing body 1 is an integrated structure with the motor end cover with rotor assembly mounting surface 2 installed on one side and the reducer cover assembly mounting surface 3 installed on the other side. The axle housing mounting surface 4 is an integrated structure with the common housing body 1. The gear ring bracket 5 and the output shaft bearing cover 6 are respectively installed on the axle housing mounting surface 4.

[0033] During use, the common housing body 1 is divided into a reducer chamber and a motor chamber. The corresponding reducer and motor are installed in the common housing body 1 and fixed by bolts on the motor end cover with rotor assembly mounting surface 2 and reducer cover assembly mounting surface 3, so that the reducer and motor share a housing. The side is integrated with the bridge housing mounting surface 4. The bridge housing mounting surface 4 also has a gear ring bracket 5 and an output shaft bearing cover 6, so that the transmission output components of the reducer are on a housing. This achieves the integration of the entire housing into one unit, which is more rigid and less prone to vibration or breakage.

[0034] According to some embodiments of this application, optionally, a motor end cover with rotor assembly 7 is also included, which is fixed in the motor chamber by the motor end cover with rotor assembly mounting surface 2. This serves to fix the motor within the common housing body 1.

[0035] According to some embodiments of this application, optionally, the reducer cover assembly 8 is fixedly installed in the reducer chamber via the reducer cover assembly mounting surface 3, and the reducer cover assembly 8 is located on the side of the motor end cover with rotor assembly 7. This serves to fix the reducer within the common housing body 1.

[0036] According to some embodiments of this application, optionally, a reducer oil inlet hole 9 is provided on the housing body 1. This allows for oiling and maintenance of the corresponding internal components within a single housing.

[0037] According to some embodiments of this application, optionally, a motor oil inlet hole 10 is provided on the housing body 1. This allows for oiling and maintenance of the corresponding internal components within a single housing.

[0038] According to some embodiments of this application, optionally, a gear ring 11 is housed within the gear ring bracket 5, and an output shaft assembly 12 is mounted within the gear ring 11. This serves to fix the gear ring 11 and the output shaft assembly 12 in their respective positions.

[0039] According to some embodiments of this application, optionally, an output shaft bearing assembly 13 is housed within the output shaft bearing cover 6. This serves to fix the output shaft bearing assembly 13 within the output shaft bearing cover 6, thereby enabling the transmission output of the motor and the reducer to be mounted on a single housing.

[0040] According to some embodiments of this application, optionally, an oil pan assembly mounting surface 14 is provided on the lower side of the common housing body 1, an electronic oil pump 15 is connected to the oil pan assembly mounting surface 14, and a heat exchanger assembly 16 is mounted on one side of the electronic oil pump 15. By sharing a housing with the motor and the reducer, the overall housing becomes smoother, reducing the feeling of unevenness, thus creating the oil pan assembly mounting surface 14, which in turn facilitates the installation of the electronic oil pump 15 and the heat exchanger assembly 16.

[0041] According to some embodiments of this application, optionally, a boss is integrally provided on the side of the common housing body 1 near the motor end cover and rotor assembly mounting surface 2, and a terminal block 17 is mounted on the boss. This facilitates wiring and power supply to each assembly.

[0042] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0043] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0044] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A commercial vehicle electric drive axle-reducer and motor in- housing assembly, characterized by, include: The common housing body (1), motor end cover with rotor assembly mounting surface (2), reducer cover assembly mounting surface (3), bridge housing mounting surface (4), gear ring bracket (5), and output shaft bearing cover (6) are provided inside the common housing body (1). The common housing body (1) is an integrated structure with a motor end cover with rotor assembly mounting surface (2) on one side and a reducer cover assembly mounting surface (3) on the other side. The bridge housing mounting surface (4) is an integrated structure with the common housing body (1). The gear ring bracket (5) and the output shaft bearing cover (6) are respectively installed on the bridge housing mounting surface (4).

2. A commercial vehicle electric drive axle-reducer and motor in- housing assembly as claimed in claim 1, characterized in that, It also includes a motor end cover with rotor assembly (7), which is fixed in the motor chamber by the motor end cover with rotor assembly mounting surface (2).

3. The electric drive axle reducer and motor in one housing assembly of claim 2, wherein, It also includes a reducer cover assembly (8), which is fixedly installed in the reducer chamber via the reducer cover assembly mounting surface (3). The reducer cover assembly (8) is located on the side of the motor end cover with rotor assembly (7).

4. The electric drive axle reducer and motor in one housing assembly of claim 1 or 2, wherein, The reducer oil inlet (9) is provided on the housing body (1).

5. The electric drive axle reducer and motor in one housing assembly of claim 1 or 3, wherein, The common housing body (1) has an oil inlet hole (10) for motor.

6. A commercial vehicle electric drive axle-reducer and motor in- housing assembly as in claim 1, wherein, A gear ring (11) is fitted inside the gear ring bracket (5), and an output shaft assembly (12) is installed inside the gear ring (11).

7. A commercial vehicle electric drive axle-reducer and motor in- housing assembly as in claim 1, wherein, An output shaft bearing assembly (13) is fitted inside the output shaft bearing cover (6).

8. A commercial vehicle electric drive axle-reducer and motor in- housing assembly as in claim 1, wherein, The lower side of the common housing body (1) is provided with an oil pan assembly mounting surface (14).

9. A commercial vehicle electric drive axle-reducer and motor in- housing assembly as in claim 1, wherein, An electronic oil pump (15) is connected to the oil pan assembly mounting surface (14), and a heat exchanger assembly (16) is installed on one side of the electronic oil pump (15).

10. A commercial vehicle electric drive axle-reducer and motor in- housing assembly as in claim 1, wherein, A boss is integrally provided on the side of the common housing body (1) near the motor end cover with rotor assembly mounting surface (2), and a terminal block (17) is installed on the boss.

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