Automobile gearbox shell

Abstract

The utility model discloses an automobile gearbox shell in the field of gearbox shells, which comprises a mounting base, the mounting base is provided with a containing cavity with an upward opening, a plurality of triangular supporting plates are arranged on the side face of the mounting base, the adjacent supporting plates are symmetrically arranged, and the supporting plates are arranged on the side face of the mounting base. A plurality of connecting plates are arranged at the bottom of the mounting base, every two adjacent connecting plates are symmetrically arranged, one end of each connecting plate extends outwards to form a connecting part, a plurality of communicated connecting holes are formed in the surface of each connecting part, and every two adjacent connecting holes are symmetrically arranged; according to the automobile gearbox shell, the triangular supporting plates are symmetrically arranged, the triangular stability principle is utilized, stress of the gearbox shell under complex working conditions is effectively dispersed, the overall torsion resistance and bending resistance are enhanced, and the structural strength is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of gearbox housings, specifically to an automotive gearbox housing. Background Technology

[0002] In automotive transmission systems, the gearbox housing, as a core load-bearing component, not only needs to support internal precision components such as gear sets, bearings, and clutches, but also needs to withstand complex dynamic loads transmitted by the engine (such as torque fluctuations and vibration shocks) and external environmental stresses (such as temperature changes and road bumps).

[0003] However, traditional gearbox housing designs still have significant shortcomings in terms of structural strength and susceptibility to loosening. Specifically, these shortcomings include: insufficient structural strength and fatigue resistance; traditional housings often employ rectangular frame structures, leading to significant stress concentration, especially under high-speed, high-load conditions, where the housing is prone to cracking or plastic deformation due to excessive local stress. Furthermore, the asymmetrical layout of the housing and connecting components results in uneven distribution of torsional stiffness, exacerbating the risk of deformation during rapid acceleration and braking. Vibration and loosening are frequent problems; the periodic vibrations generated by gear meshing and bearing rotation inside the gearbox can easily be transmitted to the vehicle body through the housing. Prolonged vibration can cause bolts to loosen, leading to the gearbox housing becoming prone to loosening under vibration, which in turn can cause the gearbox to become loose in the vehicle body, potentially creating safety hazards. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides an automotive gearbox housing that can effectively solve the technical problems of low structural strength and easy loosening of existing gearbox housings under vibration.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an automotive gearbox housing, including a mounting base, the mounting base having an upward-opening receiving cavity, a plurality of triangular support plates arranged on the side of the mounting base, adjacent support plates being symmetrically arranged, a plurality of connecting plates arranged at the bottom of the mounting base, adjacent connecting plates being symmetrically arranged, one end of the connecting plate extending outward to form a connecting part, the surface of the connecting part being provided with a plurality of through connecting holes, adjacent connecting holes being symmetrically arranged.

[0006] Furthermore, a fixing plate is vertically arranged in the receiving cavity, and a semi-circular mounting groove is provided at one end of the fixing plate.

[0007] Furthermore, a sealing gasket is provided on the surface of the mounting base, and the mounting base and the sealing gasket are provided with through screw holes.

[0008] Furthermore, the surface of the mounting base is provided with several semi-circular fixing grooves.

[0009] Furthermore, one end of the mounting base extends outward to form a positioning part, and the surface of the positioning part is provided with a plurality of positioning holes.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides an automotive gearbox housing with symmetrically arranged triangular support plates. Utilizing the principle of triangle stability, it effectively disperses the stress of the gearbox housing under complex working conditions, enhances the overall torsional and bending resistance, and greatly improves structural strength. The connecting part formed by the extension of the connecting plate and the symmetrical through holes can realize the quick alignment and installation of the gearbox housing with other components. The connecting part on the connecting plate can be inserted into other components to achieve limiting and prevent the gearbox from vibrating and becoming loose. Attached Figure Description

[0011] Figure 1 This is a perspective view of an automotive gearbox housing according to the present invention;

[0012] Figure 2 This is a top view of an automotive gearbox housing according to the present invention;

[0013] Figure 3 This is a bottom view of an automotive gearbox housing according to the present invention;

[0014] Figure 4 This is a perspective view of a connecting plate for an automotive gearbox housing according to the present invention.

[0015] Numbering on the map:

[0016] 1-Mounting base; 2-Receiving cavity; 3-Screw hole; 4-Positioning hole; 5-Sealing gasket; 6-Positioning part; 7-Fixing plate; 8-Mounting groove; 9-Fixing groove; 10-Connecting plate; 11-Connecting part; 12-Connecting hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The following is combined with Figures 1-4 A detailed description of an automotive gearbox housing according to this utility model is provided below:

[0019] An automotive transmission housing includes a mounting base 1 with an upward-opening receiving cavity 2. The mounting base 1 has several triangular support plates arranged symmetrically on its sides. The bottom of the mounting base 1 has several connecting plates 10 arranged symmetrically. One end of each connecting plate 10 extends outward to form a connecting portion 11. The surface of the connecting portion 11 has several through connecting holes 12 arranged symmetrically. A fixing plate 7 is vertically mounted in the receiving cavity 2. One end of the fixing plate 7 has a semi-circular mounting groove 8. A sealing gasket 5 is provided on the surface of the mounting base 1. The mounting base 1 and the sealing gasket 5 have through screw holes 3. The surface of the mounting base 1 has several semi-circular fixing grooves 9. One end of the mounting base 1 extends outward to form a positioning portion 6, and the surface of the positioning portion 6 has several positioning holes 4.

[0020] The semi-circular mounting groove 8 and fixing groove 9 provide radial positioning references for key components such as gears and bearings inside the gearbox. The vertical fixing plate 7 is designed to facilitate the installation of key components such as gears and bearings in a single direction. It works with the mounting groove 8 to achieve snap-fit ​​pre-fixation. By setting the sealing gasket 5, a seal is formed under the action of bolt pre-tightening force, which effectively prevents oil leakage inside the gearbox housing. The triangular support plate improves the lateral structural strength of the housing. The symmetrical layout enhances the anti-torsional performance and disperses vibration stress. The bottom symmetrical connecting plate 10 and the extended connecting part 11 achieve modular assembly through the connecting hole 12. The connecting part 11 on the connecting plate 10 can be snapped into other components to achieve limiting.

[0021] In this embodiment, an automotive gearbox housing features symmetrically arranged triangular support plates. Utilizing the principle of triangular stability, the stress on the gearbox housing under complex working conditions is effectively dispersed, enhancing the overall torsional and bending resistance and significantly improving structural strength. The connecting portion 11 formed by the extension of the connecting plate 10 and the symmetrical through holes enable rapid alignment and installation of the gearbox housing with other components. The connecting portion 11 on the connecting plate 10 can be inserted into other components to achieve limiting and prevent the gearbox from vibrating and becoming loose.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automobile transmission case, comprising a mounting base having an upwardly open accommodating cavity, characterized in that: The side of the mounting base is provided with a plurality of triangular supporting plates, which are symmetrically arranged between adjacent supporting plates.

2. The automotive transmission housing according to claim 1, characterized in that: The containing cavity is vertically provided with a fixing plate, one end of the fixing plate is provided with a semicircular mounting groove.

3. The automotive transmission housing of claim 1, wherein: The surface of the mounting base is provided with a sealing gasket, and the mounting base and the sealing gasket are provided with penetrating threaded holes.

4. The automotive transmission housing of claim 1, wherein: The surface of the mounting base is provided with a plurality of semicircular fixing grooves.

5. A housing for a gearbox according to any one of claims 1 to 4, characterized in that: One end of the mounting base extends outward to form a positioning portion, and the surface of the positioning portion is provided with a plurality of positioning holes.

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