Gearbox shell assembly and gearbox with same

Abstract

The utility model discloses a gearbox shell assembly and a gearbox with the gearbox shell assembly. The gearbox shell assembly comprises a first shell, a second shell and a third shell, a second housing; the third shell, the first shell, the second shell and the third shell are sequentially arranged and connected in the axial direction of the gearbox shell assembly, the peripheral wall of the third shell is provided with a mounting face used for mounting a suspension, the length of the third shell is a, the length of the second shell is b in the axial direction of the gearbox shell assembly, and the formula is shown in the specification. B. According to the gearbox shell assembly provided by the utility model, the gearbox shell assembly comprises the following components: a gt; b, the length of the second shell in the axial direction can be relatively shortened, and the length of the third shell in the axial direction can be increased, so that the axial length of the third shell is matched with the length of the mounting surface in the axial direction of the third shell, the suspension can be conveniently mounted on the third shell, the mounting reliability of the suspension is improved, and the mounting efficiency is improved; and a suspension support with enough strength is provided for the power assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a transmission case assembly and a transmission having the same. Background Art

[0002] In the related art, the case of a transmission is usually of a two-piece structure. When a mount is assembled to the transmission case, it is often prone to the situation that the mounting surface of the case and the mount cannot match, thus affecting the normal assembly of the mount. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a transmission case assembly, which can make the axial length of the third case match the size of the mounting surface, facilitating the mounting of the mount on the third case and improving the reliability of the mount installation.

[0004] The utility model also provides a transmission, which includes the above-mentioned transmission case assembly.

[0005] The transmission case assembly according to an embodiment of the utility model includes: a first case; a second case; a third case, the first case, the second case and the third case are arranged and connected in sequence along the axial direction of the transmission case assembly, the outer peripheral wall of the third case has a mounting surface for mounting a mount, along the axial direction of the transmission case assembly, the length of the third case is a, the length of the second case is b, and it satisfies: a > b.

[0006] For the transmission case assembly according to an embodiment of the utility model, by including a first case, a second case and a third case which are arranged and connected in sequence along the axial direction, the outer peripheral wall of the third case has a mounting surface for mounting a mount, along the axial direction of the transmission case assembly, the length of the third case is a, the length of the second case is b, and it satisfies: a > b, it can relatively shorten the length of the second case in the axial direction and increase the length of the third case in the axial direction, making the axial length of the third case match the length of the mounting surface in the axial direction of the third case, facilitating the mounting of the mount on the third case, improving the reliability of the mount installation, and providing a mount support with sufficient strength for the powertrain.

[0007] In addition, for the transmission case assembly according to the utility model, it may also have the following additional technical features:

[0008] In some embodiments, a > 80 mm.

[0009] In some embodiments, b < 80 mm.

[0010] In some embodiments, the mounting surface is provided with a plurality of mounting holes for mounting the suspension.

[0011] In some embodiments, a plurality of weight-reducing holes are provided on the mounting surface, and the plurality of weight-reducing holes are arranged at intervals.

[0012] In some embodiments, the outer peripheral wall of the third shell has two mounting surfaces, and the two mounting surfaces are respectively located on opposite sides of the third shell in the circumferential direction.

[0013] In some embodiments, the first shell, the second shell, and the third shell are connected by a plurality of fasteners, and the plurality of fasteners are arranged at intervals along the circumferential direction of the second shell.

[0014] In some embodiments, the plurality of fasteners extend along the axial direction of the transmission housing assembly, and each of the fasteners is simultaneously disposed on the first housing, the second housing, and the third housing.

[0015] In some embodiments, in the axial direction of the third shell, an area of the third shell facing one end of the second shell opposite to the mounting surface is a first area, the fastener has a head, and the head of the fastener passing through the first area is located on a side of the first shell facing away from the third shell.

[0016] The utility model also provides a gearbox having the above embodiment.

[0017] According to the gearbox of the embodiment of the utility model, the gearbox housing assembly is provided with the above-mentioned gearbox housing assembly, and the gearbox housing assembly includes a first housing, a second housing and a third housing which are arranged in sequence and connected along the axial direction, and the outer peripheral wall of the third housing has a mounting surface for mounting the suspension. Along the axial direction of the gearbox housing assembly, the length of the third housing is a, the length of the second housing is b, and it satisfies: a>b, which can relatively shorten the length of the second housing in the axial direction and increase the length of the third housing in the axial direction, so that the axial length of the third housing matches the length of the mounting surface in the axial direction of the third housing, which facilitates the installation of the suspension on the third housing, improves the reliability of the suspension installation, and provides a suspension support of sufficient strength for the powertrain.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is an exploded view of a transmission housing assembly according to an embodiment of the present utility model;

[0021] Figure 2 is a front view of a transmission housing assembly according to an embodiment of the present utility model;

[0022] Figure 3 is Figure 2 an enlarged view of the position C in

[0023] Figure 4 is a front exploded view of a transmission housing assembly according to an embodiment of the present utility model.

[0024] Reference numerals:

[0025] 100, transmission housing assembly;

[0026] 1, first housing; 11, through hole;

[0027] 2, second housing;

[0028] 3, third housing; 31, mounting surface; 32, mounting hole; 33, weight reduction hole; 34, first region; 35, second region;

[0029] 4, fastener; 41, head. Detailed implementation manners

[0030] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0033] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] The transmission housing assembly 100 according to an embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0035] As Figure 1 , Figure 2 and Figure 4 shown, the transmission housing assembly 100 according to an embodiment of the present utility model includes a first housing 1, a second housing 2, and a third housing 3.

[0036] Specifically, referring to the attached Figure 2 and the attached Figure 4 shown, the first housing 1, the second housing 2, and the third housing 3 are arranged and connected in sequence along the axial direction of the transmission housing assembly 100 (referring to the d direction shown in the attached Figure 2 ). An installation surface 31 for mounting a mount is provided on the outer peripheral wall of the third housing 3. By mounting a mount on the installation surface 31, the transmission can be connected to the vehicle chassis, effectively supporting the weight of the transmission, ensuring the stability of the transmission during vehicle driving, and effectively absorbing and isolating vibrations and impacts, improving the ride comfort and driving stability of the vehicle.

[0037] Furthermore, referring to the attached Figure 4 shown, along the axial direction of the transmission housing assembly 100, the length of the third housing 3 is a, and the length of the second housing 2 is b, and it satisfies: a > b, which can relatively shorten the length of the second housing 2 in the axial direction (referring to the d direction shown in the attached Figure 4 ), and increase the length of the third housing 3 in the axial direction (referring to the d direction shown in the attached Figure 4The length in the d direction shown, such that the axial length of the third housing 3 matches the length of the mounting surface 31 in the axial direction of the third housing 3, facilitating the mounting of the mount on the third housing 3, improving the reliability of the mount installation, and providing a mount support with sufficient strength for the powertrain.

[0038] It should be noted that splitting the transmission housing assembly 100 into the first housing 1, the second housing 2, and the third housing 3 arranged in sequence along the axial direction enables partial repair operations to be directly carried out on the vehicle without removing the entire transmission housing assembly 100 when repairing the transmission, thereby reducing the repair difficulty of the transmission and shortening the repair time of the transmission.

[0039] In a specific example, referring to the attached Figure 4 As shown, since the second housing 2 only retains a single-layer bearing chamber wall structure, a part of the second housing 2 extends into the cavity defined by the first housing 1 and / or the cavity defined by the third housing 3, so b is the length of the outer frame of the second housing 2 in the axial direction of the transmission housing assembly 100.

[0040] Optionally, when there is sufficient space in the width direction (referring to the e direction shown in the attached Figure 1 drawing) and the height direction (referring to the up and down direction shown in the attached Figure 1 drawing) of the transmission housing assembly 100, it is possible to make the second housing 2 be installed within the connection surface range of the third housing 3 by increasing the connection surface between the first housing 1 and the second housing 2 or reducing the connection surface of the second housing 2, so that the transmission housing assembly 100 appears as two sections of housings from the outside, and the layout of a large-area mount can also be achieved.

[0041] Furthermore, referring to the attached Figure 1 drawing, the first housing 1 has four through holes 11, and the centers of the four through holes 11 are respectively located at the four vertices of a rectangle. Each through hole 11 can be passed through by the motor shaft of a driving motor. The setting of the four driving motors greatly improves the power and enhances the power performance.

[0042] According to the transmission housing assembly 100 of the embodiments of the present utility model, the transmission housing assembly 100 includes a first housing 1, a second housing 2, and a third housing 3 that are arranged and connected in sequence along the axial direction. The outer peripheral wall of the third housing 3 has a mounting surface 31 for mounting the mount. Along the axial direction of the transmission housing assembly 100, the length of the third housing 3 is a, and the length of the second housing 2 is b, and it satisfies: a > b. It can relatively shorten the length of the second housing 2 in the axial direction and increase the length of the third housing 3 in the axial direction, so that the axial length of the third housing 3 matches the length of the mounting surface 31 in the axial direction of the third housing 3, facilitating the mounting of the mount on the third housing 3, improving the reliability of the mount installation, and providing a mount support with sufficient strength for the powertrain.

[0043] In some embodiments of the present utility model, referring to the attached Figure 4 As shown, a > 80 mm, which can lengthen the axial length of the third housing 3 as much as possible, increase the space occupied by the third housing 3 in the transmission housing assembly 100, so that the axial length of the third housing 3 matches the length of the mounting surface 31 in the axial direction of the third housing 3, facilitating the mounting of the mount on the third housing 3, improving the reliability of the mount installation, and providing a mount support with sufficient strength for the powertrain. For example, the length a of the third housing 3 in the axial direction of the transmission housing assembly 100 can be 81 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, or 325 mm.

[0044] In some embodiments of the present utility model, referring to the attached Figure 4 As shown, b < 80 mm, which can shorten the axial length of the second housing 2 as much as possible, reduce the space occupied by the second housing 2 in the transmission housing assembly 100, leave more space for the third housing 3, be beneficial to the layout of the mount, and ensure the reliability and stability of the transmission housing assembly 100. For example, the length b of the second housing 2 in the axial direction of the transmission housing assembly 100 can be 50 mm, 55 mm, 60 mm, 65 mm, 70 mm, 75 mm, or 79 mm.

[0045] In a specific example, referring to the attached Figure 4 As shown, in the axial direction of the transmission housing assembly 100, the length of the first housing 1 is 194 mm, the length of the second housing 2 is 50 mm, and the length of the third housing 3 is 325 mm.

[0046] In some embodiments of the present utility model, referring to the attached Figure 1 and the attached Figure 2As shown, a plurality of mounting holes 32 for mounting the mount are provided on the mounting surface 31. The plurality of mounting holes 32 are spaced apart. The mount can be selectively connected to at least some of the mounting holes 32 through fasteners, which can ensure that the mount is fixed at the mounting surface 31 of the third housing 3, avoid interference between the mount and other structures on the outer surface of the third housing 3, and ensure the reliability and stability of the mount installation. In a specific example, refer to the appendix Figure 2 As shown, there are twelve mounting holes 32 on the mounting surface 31. The twelve mounting holes 32 are arranged in three rows and four columns and are evenly spaced, which is convenient for the assembly of the mount.

[0047] In some embodiments of the present invention, refer to the appendix Figure 1 and the appendix Figure 2 As shown, a plurality of weight-reducing holes 33 are provided on the mounting surface 31. The plurality of weight-reducing holes 33 are spaced apart. On the premise of ensuring the structural strength and stiffness of the third housing 3, by reasonably selecting the shape, size and position, the weight of the third housing 3 can be reduced, thereby reducing the overall weight of the transmission housing assembly 100, which is beneficial to the lightweight design of the vehicle.

[0048] In some embodiments of the present invention, there are two mounting surfaces 31 on the outer peripheral wall of the third housing 3. The two mounting surfaces 31 are respectively located on the opposite sides in the circumferential direction of the third housing 3, which can increase the number of mounts fixed to the transmission housing assembly 100, make the force between the mounts relatively balanced, make the transmission have better stability, and defining that the two mounting surfaces 31 are respectively located on the opposite sides of the third housing 3 can facilitate the installation of a plurality of mounts and avoid interference between the plurality of mounts.

[0049] In some embodiments of the present invention, with reference to the appendix Figure 2 and the appendix Figure 3 As shown, the first housing 1, the second housing 2 and the third housing 3 are connected by a plurality of fasteners 4. The plurality of fasteners 4 are spaced apart along the circumferential direction of the second housing 2. By connecting with the fasteners 4, the assembly difficulty and disassembly difficulty between the first housing 1, the second housing 2 and the third housing 3 can be reduced, making it easier and faster to repair the transmission, replace the parts inside the transmission or perform equipment upgrades, reducing the maintenance difficulty of the transmission, reducing the maintenance cost and maintenance time of the transmission, and connecting with the fasteners 4 can ensure the connection reliability and stability of the first housing 1, the second housing 2 and the third housing 3, prevent safety accidents caused by loosening or falling off, and ensure the service life of the transmission housing assembly.

[0050] In a further embodiment of the present invention, refer to the appendix Figure 3As shown, multiple fasteners 4 extend along the axial direction of the gearbox housing assembly 100, and each fastener 4 is simultaneously provided on the first housing 1, the second housing 2, and the third housing 3. One fastener 4 can simultaneously connect the first housing 1, the second housing 2, and the third housing 3. Compared with connecting the first housing, the second housing, and the third housing in pairs, the number of fasteners 4 used can be greatly reduced, the production cost of the gearbox housing assembly 100 can be reduced, the assembly process of the gearbox housing assembly 100 can be simplified, the assembly complexity of the gearbox housing assembly 100 can be reduced, the number of holes opened on the first housing 1, the second housing 2, and the third housing 3 can be reduced, and the structural strength of the first housing 1, the second housing 2, and the third housing 3 can be ensured. Optionally, the fastener 4 is a bolt.

[0051] In a further embodiment of the present invention, in conjunction with the reference Figure 2 and attached Figure 3 As shown, in the axial direction of the third housing 3, the area of the third housing 3 facing the second housing 2 and opposite to the mounting surface 31 is the first area 34, and the fastener 4 has a head 41. The head 41 of the fastener 4 penetrating the first area 34 is located on the side of the first housing 1 away from the third housing 3, which can avoid the head 41 of the fastener 4 occupying the area of the mounting surface 31, so that the mounting surface can be maximized, and the head 41 of the fastener 4 is avoided. Interference with the installation of the suspension is avoided, and the difficulty of fixing the suspension to the gearbox housing assembly 100 is further reduced; the area of the third housing 3 facing the second housing 2 except the first area 34 is the second area 35, and the head 41 of the fastener 4 penetrating the second area 35 can be located on the side of the first housing 1 away from the third housing 3, and can also be located on the side of the third housing 3 away from the first housing 1.

[0052] The utility model also provides a gearbox having the gearbox housing assembly 100 of the above embodiment.

[0053] According to the gearbox of the embodiment of the utility model, the gearbox housing assembly 100 is provided with the above-mentioned gearbox housing assembly 100, and the gearbox housing assembly 100 includes a first housing 1, a second housing 2 and a third housing 3 arranged in sequence and connected in the axial direction, and the outer peripheral wall of the third housing 3 has a mounting surface 31 for mounting the suspension. Along the axial direction of the gearbox housing assembly 100, the length of the third housing 3 is a, the length of the second housing 2 is b, and it satisfies: a>b, which can relatively shorten the length of the second housing 2 in the axial direction and increase the length of the third housing 3 in the axial direction, so that the axial length of the third housing 3 matches the length of the mounting surface 31 in the axial direction of the third housing 3, so that the suspension can be installed on the third housing 3, the reliability of the suspension installation is improved, and the suspension support of sufficient strength is provided for the powertrain.

[0054] The gearbox housing assembly 100 according to the embodiments of the present utility model, as well as other components and operations of the gearbox, are known to those of ordinary skill in the art and will not be described in detail herein.

[0055] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0056] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A transmission housing assembly, characterized in that, include: A first housing (1); A second housing (2); A third housing (3), wherein the first housing (1), the second housing (2) and the third housing (3) are sequentially arranged and connected along the axial direction of the gearbox housing assembly (100); an outer peripheral wall of the third housing (3) is provided with a mounting surface (31) for mounting a suspension; along the axial direction of the gearbox housing assembly (100), the length of the third housing (3) is a, the length of the second housing (2) is b, and the following condition is satisfied: a>b.

2. The transmission housing assembly according to claim 1, characterized in that, a>80mm.

3. The transmission housing assembly according to claim 1, characterized in that, b<80mm.

4. The transmission housing assembly according to claim 1, wherein, The mounting surface (31) is provided with a plurality of mounting holes (32) for mounting the suspension.

5. The gearbox housing assembly according to claim 1, characterized in that A plurality of weight-reducing holes (33) are provided on the mounting surface (31), and the plurality of weight-reducing holes (33) are arranged at intervals.

6. The gearbox housing assembly according to claim 1, characterized in that The outer peripheral wall of the third shell (3) is provided with two mounting surfaces (31), and the two mounting surfaces (31) are respectively located on two opposite sides of the third shell (3) in the circumferential direction.

7. The transmission case assembly according to claim 1, wherein, The first shell (1), the second shell (2) and the third shell (3) are connected by a plurality of fasteners (4), and the plurality of fasteners (4) are arranged at intervals along the circumferential direction of the second shell (2).

8. The transmission case assembly according to claim 7, wherein The plurality of fasteners (4) extend along the axial direction of the gearbox housing assembly (100), and each of the fasteners (4) is simultaneously disposed on the first housing (1), the second housing (2) and the third housing (3).

9. The gearbox housing assembly according to claim 8, characterized in that, In the axial direction of the third shell (3), an area of the third shell (3) facing one end of the second shell (2) opposite to the mounting surface (31) is a first area (34), and the fastener (4) has a head (41), and the head (41) of the fastener (4) passing through the first area (34) is located on a side of the first shell (1) facing away from the third shell (3).

10. A transmission, characterized in that, The invention comprises a gearbox housing assembly (100) according to any one of claims 1 to 9.

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