Oil leakage prevention structure of right-angle speed reducer
Through the all-inclusive oil leakage anti-balance pad and embedded structure, the problem of oil leakage in the reducer sealing structure is solved, which improves the sealing and durability, and achieves a better oil leakage prevention effect.
Patent Information
- Application Number
- CN202422258174.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The sealing structure of existing reducers is prone to aging, resulting in high risk of oil leakage and poor sealing effect between the box and the box cover.
The fully-inclusive oil leakage rubber pad is adopted, and the box cover is embedded in the box, connected by the steps and flanges, and fixed with screws to form an embedded structure to enhance sealing.
It achieves a good anti-oil leakage effect, reduces the risk of oil leakage caused by aging of the rubber pad, improves sealing and assembly efficiency, and the product is beautiful and durable.
Smart Images
Figure CN223120568U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of speed reducers, in particular to an anti-oil leakage structure of a right-angle speed reducer. Background Art
[0002] Generally, the existing speed reducers on the market include a box body and a box cover. The box cover is directly pressed on the box body, and a rubber ring or sealant is used for sealing at the joint position between the box cover and the box body. However, the current structure has at least the following deficiencies:
[0003] (1) The rubber ring and sealant are exposed outside the box body and the box cover. In this case, the rubber ring or sealant is prone to aging, thereby increasing the oil leakage risk of the product;
[0004] (2) The stress points between the box body and the box cover only rely on a few screws, resulting in poor sealing effect between the box body and the box cover and high oil leakage risk.
[0005] Therefore, it is necessary to improve the existing speed reducers. Summary of the Utility Model
[0006] The utility model aims to solve at least one of the problems existing in the related art to a certain extent. For this reason, an object of the utility model is to provide an anti-oil leakage structure of a right-angle speed reducer, which has a good anti-oil leakage effect.
[0007] The above object is achieved by the following technical solutions:
[0008] An anti-oil leakage structure of a right-angle speed reducer includes a reduction gearbox, and the reduction gearbox includes a box body, a box cover and an anti-oil leakage gasket. A step portion is recessed and formed on the inner side of the top of the box body, and the bottom surface of the step portion is a horizontal plane. The box cover includes a cover body and a flange extending downward from the bottom edge of the cover body. The anti-oil leakage gasket includes a bottom surface portion, an inner side surface portion extending upward from the inner edge of the bottom surface portion, and an outer side surface portion extending upward from the outer edge of the bottom surface portion. A connecting groove is formed between the bottom surface portion, the inner side surface portion and the outer side surface portion. The flange is embedded in the connecting groove. The box cover is embedded in the top of the box body and abuts against the step portion, and the anti-oil leakage gasket is pressed between the box cover and the box body.
[0009] In some embodiments, the bottom surface portion is pressed between the bottom surface of the flange and the top surface of the step portion, the inner side surface portion is closely attached to the inner surface of the flange, and the outer side surface portion is pressed between the outer surface of the flange and the inner surface of the box body.
[0010] In some embodiments, an annular anti-oil leakage protrusion is protrudingly provided at a position near the outer edge of the bottom surface of the bottom surface portion.
[0011] In some embodiments, a plurality of positioning rods are provided at the bottom of the box cover, and a plurality of positioning holes are provided on the stepped portion, and the positioning rods are inserted into the corresponding positioning holes.
[0012] In some embodiments, there is also a screw, and the box cover, the oil leakage prevention rubber pad and the box body are fixedly connected together by the screw.
[0013] In some embodiments, a plurality of spaced connection portions are provided inside the oil leakage prevention rubber pad, and a plurality of spaced connection columns are provided inside the stepped portion, and the connection portions are arranged on the top surfaces of the corresponding connection columns, and the box cover, the connection portions and the connection columns are fixedly connected together by screws.
[0014] In some embodiments, a plurality of spaced connection bosses are provided inside the flange, and connection holes are formed in the connection bosses, and one end of the screw passes through the connection holes and the connection portions and then is screwed into the connection columns.
[0015] Compared with the prior art, the present utility model has at least the following beneficial effects:
[0016] 1. The oil leakage prevention structure of a right-angle speed reducer of the present utility model has a good oil leakage prevention effect. Description of the Drawings
[0017] Figure 1 is a three-dimensional schematic diagram of a right-angle speed reducer in an embodiment of the present utility model;
[0018] Figure 2 is an exploded schematic diagram of a right-angle speed reducer in an embodiment of the present utility model;
[0019] Figure 3 is a three-dimensional schematic diagram of an oil leakage prevention rubber pad in an embodiment of the present utility model;
[0020] Figure 4 is a three-dimensional schematic diagram of a box cover in an embodiment of the present utility model. Detailed Embodiments
[0021] The following embodiments are used to illustrate the present utility model, but the present utility model is not limited by these embodiments. Modifying the specific implementation manners of the present utility model or making equivalent replacements for some technical features without departing from the spirit of the present utility model scheme shall all be covered within the scope of the technical solution claimed by the present utility model.
[0022] Embodiment 1: As Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, this embodiment provides an anti-oil-leakage structure for a right-angle speed reducer, which includes a reduction gearbox. The reduction gearbox includes a box body 1, a box cover 2 and an anti-oil-leakage gasket 3. A stepped portion 11 is recessed and formed on the inner side of the top of the box body 1. The bottom surface of the stepped portion 11 is a horizontal plane. The box cover 2 includes a cover body 21 and a flange 22 extending downward from the bottom edge of the cover body 21. The anti-oil-leakage gasket 3 includes a bottom surface portion 31, an inner side surface portion 32 extending upward from the inner edge of the bottom surface portion 31, and an outer side surface portion 33 extending upward from the outer edge of the bottom surface portion 31. A connecting groove 34 is formed between the bottom surface portion 31, the inner side surface portion 32 and the outer side surface portion 33. The flange 22 is embedded in the connecting groove 34. The box cover 2 is embedded in the top of the box body 1 and abuts against the stepped portion 11. The anti-oil-leakage gasket 3 is pressed between the box cover 2 and the box body 1.
[0023] The anti-oil-leakage structure for a right-angle speed reducer provided by this embodiment has a good anti-oil-leakage effect.
[0024] Specifically, by adopting the fully enclosed anti-oil-leakage gasket 3, multi-faceted anti-oil-leakage can be achieved. In addition, to a certain extent, it can also reduce the oil-leakage risk caused by the deformation of the anti-oil-leakage gasket 3 after long-term use.
[0025] During installation, the anti-oil-leakage gasket 3 is wrapped outside the flange 22, and then the box cover 2 is embedded in the top of the box body 1 and abuts against the stepped portion 11. The installation of the box body 1, the box cover 2 and the anti-oil-leakage gasket 3 is simple, convenient and reliable.
[0026] The outer diameter of the box cover 2 is engaged with the inner diameter of the box body 1, thereby realizing the embedding of the box cover 2. When the box cover 2 is stressed, the box body 1 will also be stressed together, thereby increasing the durability of the box cover 2. In addition, the top surface of the stepped portion 11 is a horizontal plane, so that the joint portion between the box cover 2 and the box body 1 is a plane. Coupled with the fully enclosed anti-oil-leakage gasket 3, the joint portion can be more oil-resistant, thus better playing the role of anti-oil-leakage.
[0027] Moreover, the box cover 2 and the anti-oil-leakage gasket 3 adopt an embedded structure, and the anti-oil-leakage gasket 3 at the joint position cannot be seen from the outside, making the joint position less likely to age and the product more beautiful.
[0028] In this embodiment, the bottom surface portion 31 is pressed between the bottom surface of the flange 22 and the top surface of the stepped portion 11. The inner side surface portion 32 closely adheres to the inner surface of the flange 22. The outer side surface portion 33 is pressed between the outer surface of the flange 22 and the inner surface of the box body 1. By adopting the fully enclosed anti-oil-leakage gasket 3, multi-faceted anti-oil-leakage can be achieved, and it has a good anti-oil-leakage effect.
[0029] Further, an annular oil leakage prevention protrusion 310 is convexly arranged at a position on the bottom surface of the bottom surface portion 31 close to its outer edge. The oil leakage prevention protrusion 310 can block the outward seepage of engine oil. Its structure is simple and the design is reasonable, thereby further improving the sealing performance of the connection between the box body 1 and the box cover 2.
[0030] Furthermore, a plurality of positioning rods are arranged at the bottom of the box cover 2, and a plurality of positioning holes 110 are arranged on the stepped portion 11. The positioning rods are inserted into the corresponding positioning holes 110. Its structure is simple, thereby facilitating the positioning and connection between the box cover 2 and the box body 1, and improving the assembly efficiency of the product.
[0031] In this embodiment, it further includes screws. The box cover 2, the oil leakage prevention rubber pad 3 and the box body 1 are fixedly connected together by the screws. The screw connection method is simple, fast and reliable.
[0032] Further, a plurality of spaced connection portions 35 are arranged inside the oil leakage prevention rubber pad 3, and a plurality of spaced connection columns 12 are arranged inside the stepped portion 11. The connection portions 35 are arranged on the top surfaces of the corresponding connection columns 12. The box cover 2, the connection portions 35 and the connection columns 12 are fixedly connected together by screws. Its structure is simple and the design is reasonable, thereby realizing the connection between the box cover 2, the oil leakage prevention rubber pad 3 and the box body 1, and improving the stability and reliability of the connection among the three.
[0033] Furthermore, a plurality of spaced connection bosses 221 are arranged inside the flange 22, and connection holes 2210 are formed in the connection bosses 221. One end of the screw passes through the connection holes 2210 and the connection portions 35 and then is screwed into the connection columns 12, thereby ensuring the structural strength of the force-bearing part on the box cover 2, and further ensuring the stability and reliability of the connection between the box cover 2, the oil leakage prevention rubber pad 3 and the box body 1.
[0034] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.
Claims
1. An anti-oil leakage structure for a right-angle speed reducer, characterized in that, It includes a reduction gearbox, and the reduction gearbox includes a box body (1), a box cover (2) and an oil leakage prevention rubber pad (3). A stepped portion (11) is recessed and formed on the inner side of the top of the box body (1), and the bottom surface of the stepped portion (11) is a horizontal plane. The box cover (2) includes a cover body (21) and a flange (22) extending downward from the bottom edge of the cover body (21). The oil leakage prevention rubber pad (3) includes a bottom surface portion (31), an inner side surface portion (32) extending upward from the inner edge of the bottom surface portion (31), and an outer side surface portion (33) extending upward from the outer edge of the bottom surface portion (31). A connection groove (34) is formed among the bottom surface portion (31), the inner side surface portion (32) and the outer side surface portion (33). The flange (22) is embedded in the connection groove (34). The box cover (2) is embedded in the top of the box body (1) and abuts against the stepped portion (11), and the oil leakage prevention rubber pad (3) is pressed between the box cover (2) and the box body (1).
2. The anti-oil leakage structure of a right-angle reduction gear according to claim 1, characterized in that The bottom surface portion (31) is pressed between the bottom surface of the flange (22) and the top surface of the stepped portion (11), the inner side surface portion (32) is closely attached to the inner surface of the flange (22), and the outer side surface portion (33) is pressed between the outer surface of the flange (22) and the inner surface of the box body (1).
3. The anti-oil leakage structure of a right-angle speed reducer according to claim 1, characterized in that An annular oil leakage prevention protrusion (310) is protrudingly arranged at a position on the bottom surface of the bottom surface portion (31) close to its outer edge.
4. The anti-oil leakage structure of a right-angle speed reducer according to claim 1, 2 or 3, characterized in that, A plurality of positioning rods are arranged at the bottom of the box cover (2), and a plurality of positioning holes (110) are arranged on the stepped portion (11), and the positioning rods are inserted into the corresponding positioning holes (110).
5. The anti-oil leakage structure of a right-angle speed reducer according to claim 4, characterized in that, It also includes screws, and the box cover (2), the oil leakage prevention rubber pad (3) and the box body (1) are fixedly connected together by the screws.
6. The anti-oil leakage structure of a right-angle speed reducer according to claim 5, characterized in that, A plurality of spaced connection portions (35) are arranged inside the oil leakage prevention rubber pad (3), and a plurality of spaced connection columns (12) are arranged inside the stepped portion (11). The connection portions (35) are arranged on the top surfaces of the corresponding connection columns (12), and the box cover (2), the connection portions (35) and the connection columns (12) are fixedly connected together by the screws.
7. The anti-oil leakage structure of a right-angle reduction gear according to claim 6, characterized in that, A plurality of spaced connection bosses (221) are arranged inside the flange (22), and connection holes (2210) are formed in the connection bosses (221). One end of the screw passes through the connection holes (2210) and the connection portions (35) and then is screwed into the connection columns (12).