Differential case mounting window structure

Abstract

The utility model discloses a kind of differential mechanism shell mounting window structure, it is related to differential mechanism assembly technical field, including shell body, the inside of shell body is penetrated and is equipped with mounting window, the mounting window includes horizontal part, link part, two vertical parts and two connecting parts;The upper end of two vertical parts is respectively connected with the left and right ends of horizontal part by a connecting part, and the lower end of two vertical parts is respectively connected with the left and right ends of link part. The differential mechanism shell mounting window structure, by smooth tangent transition and supplemented with edge chamfer processing, avoid stress concentration, when differential mechanism shell body bears complex alternating load in vehicle driving, stress distribution is more uniform, improve the overall structural strength and fatigue life of shell, guarantee the reliability of long-term operation of differential mechanism.

Description

Technical Field

[0001] This utility model relates to the field of differential assembly technology, specifically to a differential housing mounting window structure. Background Technology

[0002] As a core component of the automotive transmission system, the differential plays a crucial role in adjusting the speed difference between the left and right wheels and transmitting power when the vehicle is turning. The differential housing, as the basic carrier that supports precision parts such as internal planetary gears, planetary gear shafts, and half-shaft gears, has a structural design that directly relates to the assembly feasibility, operational stability, and service life of the differential.

[0003] The mounting window that runs through the housing is a core functional area in differential design. Currently, the design shape of the mounting window varies, directly restricting the smoothness of differential assembly and becoming a significant factor affecting production efficiency and component assembly accuracy. Existing mounting windows often employ a small opening design to balance housing strength. However, some windows are too narrow, requiring long components such as planetary gear shafts and half-shaft gears to be tilted at a significant angle to enter or exit the window, resulting in limited operating space.

[0004] Therefore, we propose a differential housing mounting window structure to address the problems mentioned above. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model: The purpose of this utility model is to provide a differential housing mounting window structure to solve the problems currently existing in the market as mentioned in the background art.

[0006] 2. Technical Solution: To achieve the above objectives, this utility model provides the following technical solution: a differential housing mounting window structure, comprising a housing body, wherein a mounting window is provided through the interior of the housing body, and the mounting window includes a horizontal part, a connecting part, two vertical parts and two connecting parts; The upper ends of the two vertical parts are connected to the left and right ends of the horizontal part respectively through a connecting part, and the lower ends of the two vertical parts are connected to the left and right ends of the connecting part respectively.

[0007] Furthermore, the connecting part includes connecting part one and connecting part two; Both the first connecting part and the second connecting part are arc-shaped structures, and the first connecting part and the second connecting part are connected by a tangential transition. The end of the first connecting part away from the second connecting part is tangentially connected to the upper end of the vertical part, and the end of the second connecting part away from the first connecting part is tangentially connected to the end of the horizontal part.

[0008] The above technical solutions can avoid stress concentration and enhance the strength of the differential housing.

[0009] Furthermore, the connecting part is arc-shaped, and the left and right ends of the connecting part are tangentially connected to the left and right vertical parts respectively.

[0010] The above technical solutions further improve structural stability.

[0011] Furthermore, the two vertical portions are symmetrically distributed about the center of the horizontal portion.

[0012] The above technical solution ensures that the mounting window is subjected to balanced forces during differential operation, avoiding local deformation of the housing body due to concentrated load on one side, and significantly improving structural stability.

[0013] Furthermore, the two sides of the horizontal part, the connecting part, the vertical part, the first connecting part, and the second connecting part are all chamfered.

[0014] The above technical solutions can avoid local stress concentration caused by sharp edges, reduce the risk of fatigue failure of the housing body, prevent scratch damage between parts and window edges during assembly, protect the surface precision of parts, and reduce the flow resistance of lubricating oil at the edges, so that the lubricating oil can cover the gear meshing surface more efficiently and improve the lubrication effect.

[0015] 3. Beneficial effects: Compared with the prior art, the differential housing mounting window structure of this utility model, through a smooth tangential transition and edge chamfering, avoids stress concentration. When the differential housing body is subjected to complex alternating loads during vehicle operation, the stress distribution is more uniform, thereby improving the overall structural strength and fatigue life of the housing and ensuring the long-term reliability of the differential. The specific details are as follows: All connection points of the mounting window adopt arc-shaped tangential transitions, which can avoid stress concentration and enhance the strength of the differential housing. At the same time, the chamfering treatment further optimizes the edge stress distribution, which makes the stress distribution of the differential housing more uniform when subjected to complex alternating loads, thereby significantly improving the overall structural strength and fatigue life of the housing and ensuring the long-term reliability of the differential. (2) Due to the adoption of an optimized arc transition structure to ensure strength, the limitation of reducing the window size in the traditional design to ensure strength is broken. Under the same strength requirements, the area of ​​the installation window can be safely increased. The larger window provides more operating space for the assembly of internal parts such as planetary gear shafts, making the assembly process smoother and more convenient, effectively avoiding bumps and blockages during the assembly process, and improving production efficiency and assembly accuracy. (3) The increased installation window area can simultaneously increase the channel area and flow rate of lubricating oil into the differential, so that the lubricating oil can flow into the gear meshing area and bearing parts more fully and quickly, forming a more effective lubricating oil film. This significantly improves the lubrication conditions inside the differential, reduces friction and wear, helps to lower the operating temperature, and further improves the working efficiency and durability of the differential. (4) The increased installation window area allows for more reasonable material reduction in other non-critical parts of the housing, which helps to reduce the weight of the differential housing and even the entire differential device, in line with the automotive industry's development trend of lightweighting, energy saving and emission reduction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0017] In the diagram: 1. Shell body; 2. Mounting window; 3. Vertical part; 4. Connecting part one; 5. Connecting part two; 6. Horizontal part; 7. Joint. Detailed Implementation

[0018] To facilitate understanding of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, 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 number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0022] Please see Figure 1-3 A differential housing mounting window structure includes a housing body 1, with a mounting window 2 extending through the interior of the housing body 1. The mounting window 2 includes a horizontal part 6, a connecting part 7, two vertical parts 3, and two connecting parts. The upper ends of the two vertical parts 3 are connected to the left and right ends of the horizontal part 6 respectively through a connecting part, and the lower ends of the two vertical parts 3 are connected to the left and right ends of the connecting part 7 respectively. The connecting part includes connecting part 4 and connecting part 5; both connecting part 4 and connecting part 5 are arc-shaped structures, and they are connected by a tangential transition. The end of connecting part 4 away from connecting part 25 is tangentially connected to the upper end of the vertical part 3, and the end of connecting part 25 away from connecting part 4 is tangentially connected to the end of the horizontal part 6. The connecting part 7 is arc-shaped, and its left and right ends are tangentially connected to the left and right vertical parts 3 respectively. The two vertical parts 3 are symmetrically distributed about the center of the horizontal part 6. The two sides of the horizontal part 6, connecting part 7, vertical part 3, connecting part 4, and connecting part 25 are all chamfered. The horizontal part 6, connecting part 7, vertical part 3, connecting part one 4 and connecting part two 5 on the mounting window 2 all adopt a smooth tangential transition to avoid stress concentration and enhance the strength of the differential housing. At the same time, the chamfering treatment further optimizes the edge stress distribution, so that the stress distribution of the differential housing body 1 is more uniform when subjected to complex alternating loads, thereby improving the overall structural strength and fatigue life of the housing and ensuring the reliability of the differential in long-term operation. While meeting the strength requirements of the differential housing, the mounting window 2 has a larger area compared to the traditional design. The larger window provides more operating space for the assembly of internal parts such as the planetary gear shaft, making the assembly process smoother and more convenient, avoiding bumps and blockages during assembly, and improving production efficiency and assembly accuracy. At the same time, the rectangular mounting window 2 increases the channel area and flow rate of lubricating oil into the differential, allowing the lubricating oil to flow more fully and quickly into the gear meshing area and bearing parts, forming a more effective lubricating oil film, improving the lubrication conditions inside the differential, reducing friction and wear, helping to lower the operating temperature, and further improving the working efficiency and durability of the differential. While meeting the same performance requirements, a larger window helps reduce the weight of the differential housing and even the entire differential assembly, which is in line with the automotive industry's development trend of lightweighting, energy conservation and emission reduction.

[0023] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A differential housing mounting window structure, characterized in that: The housing includes a shell body (1), and an installation window (2) is provided through the interior of the shell body (1). The installation window (2) includes a horizontal part (6), a connecting part (7), two vertical parts (3) and two connecting parts. The upper ends of the two vertical parts (3) are connected to the left and right ends of the horizontal part (6) respectively through a connecting part, and the lower ends of the two vertical parts (3) are connected to the left and right ends of the connecting part (7) respectively.

2. The differential housing mounting window structure according to claim 1, characterized in that: The connecting part includes connecting part one (4) and connecting part two (5); Both the first connecting part (4) and the second connecting part (5) are arc-shaped structures, and the first connecting part (4) and the second connecting part (5) are connected by a tangential transition. The end of the first connecting part (4) away from the second connecting part (5) is tangentially connected to the upper end of the vertical part (3), and the end of the second connecting part (5) away from the first connecting part (4) is tangentially connected to the end of the horizontal part (6).

3. The differential housing mounting window structure according to claim 1, characterized in that: The connecting part (7) is arc-shaped, and the left and right ends of the connecting part (7) are tangentially connected to the left and right vertical parts (3) respectively.

4. The differential housing mounting window structure according to claim 1, characterized in that: The two vertical parts (3) are symmetrically distributed about the center of the horizontal part (6).

5. The differential housing mounting window structure according to claim 1, characterized in that: The two sides of the horizontal part (6), the connecting part (7), the vertical part (3), the connecting part one (4) and the connecting part two (5) are all chamfered.

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