Housing structure for a multifunctional transmission

CN224871842UActive Publication Date: 2026-10-20GUANGXI YUCHAI MASCH CO LTD
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Patent Information

Application Number
CN202522798850.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-10-20
Estimated Expiration
2035-12-30

AI Technical Summary

Technical Problem

[0003]功能单一:大多数壳体仅注重机械强度,缺乏集成化设计,未考虑散热增强,导致在高速运行时变速器内润滑油温升高

Benefits of technology

[0019]与现有技术相比,本实用新型的多功能变速器的壳体结构具有以下有益效果:多功能集成,通过一体化设计,集成多个轴承座、油封座、散热筋条、泄压阀孔以及放油塞孔等于一体;维护便捷,放油塞和泄压阀安装孔使保养更简单;性能提升:整流罩安装搭子允许加装空气动力学组件,降低风阻,适用于航空领域;扩展性强:可适配不同整流罩,满足多样化场景需求;轴承座加强筋的设置可整体加强壳体本身的强度与刚度,在满足自身强度要求的同时,还能使壳体本身作为其它部件的辅助支撑点提供了可靠的保证。

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Abstract

The utility model discloses a casing structure of multifunctional transmission, including casing body, casing body is long circular casing structure, and the one side of long circular casing structure is open, and the other side is closed, and casing body includes a plurality of bearing seat, a plurality of bolt sub, a plurality of heat dissipation rib, a plurality of bearing seat reinforcing rib and lubricating oil cavity, the central axis of a plurality of bearing seat is set up in the closed side of casing body mutually in parallel, a plurality of bolt sub sets up at the edge of casing body open, a plurality of heat dissipation rib sets up on the outer wall of the closed side of casing body, a plurality of bearing seat reinforcing rib sets up on the inner wall of the closed side of casing body, and lubricating oil cavity sets up in the lower part inside casing body. By this, can through integrated design, integrate bearing seat, oil seal seat, heat dissipation rib, pressure relief valve hole, oil drain plug hole and fairing installation sub etc. to an integral whole, has multiple functions simultaneously, can adapt to different auxiliary fittings, satisfies the demand of diversified scene.
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Description

Technical Field

[0001] This utility model relates to the field of engine design and manufacturing technology, and in particular to a multifunctional housing for a transmission, suitable for scenarios requiring high-reliability transmission such as power transmission and engine gearboxes. Background Technology

[0002] In existing technologies, transmission housings are typically designed as simple support structures, primarily functioning to house gear sets and bearings and provide basic lubrication. However, conventional housings have the following shortcomings:

[0003] Single function: Most housings only focus on mechanical strength, lack integrated design, and do not consider heat dissipation enhancement, resulting in increased lubricating oil temperature in the transmission during high-speed operation.

[0004] Inconvenient maintenance: Oil draining and pressure relief functions are often achieved through external additional components, which increases installation complexity and makes leakage more likely.

[0005] Poor scalability: No dedicated interface is provided for installing additional components, which limits its application in special environments.

[0006] Therefore, it is necessary to design a multifunctional transmission housing to solve the problems of single function and difficult maintenance of existing housings.

[0007] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0008] The purpose of this utility model is to provide a multi-functional transmission housing structure, which integrates bearing housing, oil seal housing, heat dissipation fins, pressure relief valve hole, oil drain plug hole and fairing mounting bracket into one unit through integrated design. It also has multiple functions, can be adapted to different auxiliary accessories, and meets the needs of diverse scenarios.

[0009] To achieve the above objectives, this utility model provides a housing structure for a multifunctional transmission, including a housing body. The housing body has an elongated oval structure, with one side open and the other side closed. The housing body includes multiple bearing seats, multiple bolt catches, multiple heat dissipation ribs, multiple bearing seat reinforcing ribs, and a lubricating oil cavity. The central axes of the multiple bearing seats are arranged parallel to each other on the closed side of the housing body. The multiple bolt catches are located at the edge of the open side of the housing body. The multiple heat dissipation ribs are located on the outer wall of the closed side of the housing body. The multiple bearing seat reinforcing ribs are located on the inner wall of the closed side of the housing body. The lubricating oil cavity is located in the lower part of the interior of the housing body.

[0010] In a preferred embodiment, a portion of the plurality of bearing housings has a through-hole structure, and another portion has a countersunk hole structure.

[0011] In a preferred embodiment, the through-hole bearing housing is located at the upper part of the housing body, and the countersunk bearing housing is located at the middle and lower parts of the housing body.

[0012] In a preferred embodiment, the center line connecting the multiple bearing seats is a straight line, and this straight line coincides with the center line of the housing body along its length.

[0013] In a preferred embodiment, the center line connecting the multiple bearing seats in the housing structure of the multi-function transmission is a broken line.

[0014] In a preferred embodiment, the plurality of heat dissipation ribs are in the form of multiple convex ribs extending along the length of the housing body and located in the lower middle part of the outer wall of the closed side of the housing body.

[0015] In a preferred embodiment, a portion of the plurality of bearing housing reinforcing ribs is disposed between the edge of the through-hole structure and the countersunk hole structure and the inner wall of the side portion of the housing body.

[0016] In a preferred embodiment, a portion of the plurality of bearing housing reinforcing ribs is disposed between the edge of the bearing housing in the through-hole structure and the outer wall of the side portion of the housing body.

[0017] In a preferred embodiment, the housing structure of the multi-function transmission also includes a plurality of fairing mounting brackets disposed around the bearing seats of the through-hole structure on the upper part of the housing body.

[0018] In a preferred embodiment, the housing structure of the multi-function transmission further includes a pressure relief valve hole, an oil drain plug hole, at least one locating pin hole, and an oil seal seat; the pressure relief valve hole is located on the side wall at the top of the housing body; the oil drain plug hole is located on the side wall at the bottom of the housing body; at least one locating pin hole is located at the edge of the open end of the housing body; and the oil seal seat is located at one end of the through-hole bearing seat of the housing body located on the outer wall.

[0019] Compared with existing technologies, the housing structure of this utility model of a multi-functional transmission has the following advantages: multi-functional integration, through integrated design, multiple bearing seats, oil seal seats, heat dissipation ribs, pressure relief valve holes, and drain plug holes are integrated into one unit; convenient maintenance, the drain plug and pressure relief valve mounting holes make maintenance simpler; performance improvement: the fairing mounting bracket allows for the addition of aerodynamic components, reducing wind resistance, and is suitable for the aviation field; strong expandability: it can be adapted to different fairings to meet diverse scenario requirements; the setting of bearing seat reinforcing ribs can enhance the overall strength and rigidity of the housing itself, while meeting its own strength requirements, it can also provide a reliable guarantee for the housing itself to serve as an auxiliary support point for other components. Attached Figure Description

[0020] Figure 1 This is a side sectional view of the shell structure according to an embodiment of the present invention;

[0021] Figure 2 This is a front view schematic diagram of the shell structure according to an embodiment of the present utility model;

[0022] Figure 3 This is a rear view schematic diagram of the shell structure according to an embodiment of the present utility model.

[0023] Explanation of key figure labels:

[0024] 10-Housing body, 101-Single shaft bearing seat, 102-Second shaft bearing seat, 103-Third shaft bearing seat, 104-Oil seal seat, 105-Pressure relief valve hole, 106-Lubricating oil chamber, 107-Drain plug hole, 108-Fairing mounting bracket, 109-Heat dissipation fins, 110-Bolt bracket, 111-Bearing seat reinforcing rib, 112-Positioning pin hole. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0026] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0027] like Figures 1 to 3 As shown, a housing structure of a multi-functional transmission according to a preferred embodiment of the present invention includes a housing body 10. The housing body 10 has an elongated oval structure, with one side open and the other side closed. The housing body 10 includes multiple bearing seats, multiple bolt catches 110, multiple heat dissipation ribs 109, multiple bearing seat reinforcing ribs 111, and a lubricating oil cavity 106. The central axes of the multiple bearing seats are arranged parallel to each other on the closed side of the housing body 10. The multiple bolt catches 110 are located at the edge of the open side of the housing body 10. The multiple heat dissipation ribs 109 are located on the outer wall of the closed side of the housing body 10. The multiple bearing seat reinforcing ribs 111 are located on the inner wall of the closed side of the housing body 10. The lubricating oil cavity 106 is located in the lower part of the housing body 10. The lubricating oil cavity 106 can store lubricating oil, and a portion of the bottom gear can be immersed in the lubricating oil. It can also lubricate and dissipate heat for other gears by splashing.

[0028] Please see Figures 1 to 3In some embodiments, a portion of the multiple bearing seats has a through-hole structure, while another portion has a countersunk hole structure. The through-hole bearing seats are located at the upper part of the housing body 10, while the countersunk bearing seats are located at the middle and lower parts of the housing body 10. The center line connecting the multiple bearing seats is a straight line, and this straight line coincides with the centerline of the housing body 10 along its length. In the housing structure of the multi-function transmission, the center line connecting the multiple bearing seats forms a broken line. This embodiment illustrates three bearing seats: a first-axis bearing seat 101, a second-axis bearing seat 102, and a third-axis bearing seat 103. The first-axis bearing seat 101, with a through-hole structure, is at the uppermost part, while the second-axis and third-axis bearing seats, with countersunk holes, are in the middle and lower parts. The center line connecting the three bearing seats is a straight line, and coincides with the center of the housing body 10. However, this embodiment is merely exemplary, and the present invention is not limited thereto.

[0029] Please see Figures 2 to 3 In some embodiments, multiple heat dissipation ribs 109 are multiple convex rib structures extending along the length of the housing body 10 and located in the lower middle part of the outer wall of the closed side of the housing body 10. Multiple heat dissipation ribs 109 are beneficial to the heat dissipation effect of the housing itself.

[0030] Please see Figures 2 to 3 In some embodiments, a portion of the plurality of bearing housing reinforcing ribs 111 is disposed between the edge of the through-hole structure and the countersunk hole structure and the inner wall of the side portion of the housing body 10. A portion of the plurality of bearing housing reinforcing ribs 111 is disposed between the edge of the bearing housing in the through-hole structure and the outer wall of the side portion of the housing body 10.

[0031] Please see Figures 2 to 3 In some embodiments, the housing structure of the multi-function transmission also includes multiple fairing mounting brackets 108, which are disposed around the bearing seats of the through-hole structure on the upper part of the housing body 10. In this embodiment, multiple fairing mounting brackets 108 are provided around the bearing seats of the through-hole structure on the upper part. Therefore, correspondingly, multiple bearing seat reinforcing ribs 111 are also provided around the oil seal seat to ensure the strength and rigidity requirements of the fairing mounting position.

[0032] Please see Figures 1 to 3In some embodiments, the housing structure of the multi-function transmission further includes a pressure relief valve hole 105, an oil drain plug hole 107, at least one locating pin hole 112, and an oil seal seat 104. The pressure relief valve hole 105 is located on the side wall at the top of the housing body 10 and can be used to install a pressure relief valve or other supporting components. The oil drain plug hole 107 is located on the side wall at the bottom of the housing body 10 and communicates with the lubricating oil chamber 106. When the lubricating oil in the lubricating oil chamber 106 needs to be replaced, the lubricating oil can be drained from the oil drain plug hole 107. At least one locating pin hole 112 is located at the edge of the open end of the housing body 10. This application illustrates two locating pin holes 112 at symmetrical oblique angles, but this utility model is not limited thereto. The oil seal seat 104 is located at one end of the bearing seat of the through hole structure of the housing body 10 located on the outer wall, which can be used for sealing the external power shaft.

[0033] In summary, the housing structure of this utility model's multi-functional transmission has the following advantages: multi-functional integration, through an integrated design that integrates multiple bearing seats, oil seal seats, heat dissipation ribs, pressure relief valve holes, and drain plug holes into one unit; convenient maintenance, with drain plug and pressure relief valve mounting holes simplifying maintenance; performance enhancement: the fairing mounting bracket allows for the addition of aerodynamic components, reducing wind resistance and making it suitable for the aviation field; strong expandability: it can be adapted to different fairings to meet diverse scenario requirements; the bearing seat reinforcing ribs can enhance the overall strength and rigidity of the housing itself, ensuring its own strength requirements while also providing reliable support for other components.

[0034] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A housing structure for a multi-functional transmission, characterized in that, The shell body comprises an elongated oval shell structure, one side of which is open and the other side is closed. Multiple bearing housings, wherein the axes are arranged parallel to each other on one side of the housing body; Multiple bolt catches are provided at the edge of the opening of the housing body; Multiple heat dissipation fins are provided on the outer wall of the closed side of the housing body; Multiple bearing housing reinforcing ribs are disposed on the inner wall of the closed side of the housing body; and The lubricating oil chamber is located in the lower part of the housing body.

2. The housing structure of the multi-functional transmission as described in claim 1, characterized in that, One part of the multiple bearing housings has a through-hole structure, and the other part has a countersunk hole structure.

3. The housing structure of the multi-functional transmission as described in claim 2, characterized in that, The bearing seat with the through hole structure is located at the upper part of the housing body, and the bearing seat with the countersunk hole structure is located at the middle and lower parts of the housing body.

4. The housing structure of the multi-functional transmission as described in claim 1, characterized in that, The center line connecting the multiple bearing seats is a straight line, and this straight line coincides with the center line of the housing body along its length.

5. The housing structure of the multi-functional transmission as described in claim 1, characterized in that, The center line connecting the multiple bearing housings forms a broken line.

6. The housing structure of the multi-functional transmission as described in claim 1, characterized in that, The plurality of heat dissipation ribs are multiple convex ridge structures extending along the length of the housing body, and are located in the lower middle part of the outer wall of the closed side of the housing body.

7. The housing structure of the multi-functional transmission as described in claim 2, characterized in that, A portion of the plurality of bearing seat reinforcing ribs is disposed between the edges of the through-hole structure and the countersunk hole structure and the inner wall of the side portion of the housing body.

8. The housing structure of the multi-functional transmission as described in claim 2, characterized in that, A portion of the multiple bearing seat reinforcing ribs is disposed between the edge of the bearing seat in the through-hole structure and the outer wall of the side portion of the housing body.

9. The housing structure of the multi-functional transmission as described in claim 3, characterized in that, It also includes multiple fairing mounting brackets, which are disposed around the bearing seats of the through-hole structure on the upper part of the housing body.

10. The housing structure of the multi-functional transmission as described in claim 3, characterized in that, Also includes: A pressure relief valve port is located on the side wall at the top of the housing body; An oil drain plug hole is located on the side wall at the bottom of the housing body; At least one locating pin hole is provided at the edge of the opening of the housing body; and An oil seal seat is provided at one end of the outer wall of the through-hole structure bearing seat of the housing body.