Oil seepage prevention air filter and gear box
By incorporating a transition piece and a bend in the flow channel within the gearbox air filter, the problem of lubricating oil leakage was solved, achieving effective utilization of lubricating oil and cost reduction.
Patent Information
- Application Number
- CN202520204195.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing gearbox air filters are prone to leakage of atomized lubricating oil, increasing oil consumption and operating costs.
An oil-proof air filter was designed by adding an adapter to the bottom of the filter body. The adapter has a flow channel that connects to the filter body and at least one bend in the flow channel to extend the length of the flow channel, slow down the flow rate of the lubricating oil, and allow it to flow back into the housing under the action of gravity.
This reduces the probability of lubricating oil leakage from the filter body, improves resource utilization, and reduces operating costs.
Smart Images
Figure CN223609267U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical drive technical field, specifically, relate to a kind of air filter and gear box of anti-seepage oil. BACKGROUND
[0002] The air filter of the gear box can filter the air entering the gear box, remove impurities, particulate matter, moisture and salt, etc. therein, ensure that the lubricating oil inside the gear box remains clean, reduce the wear and corrosion of moving parts. In addition, the air filter can also realize the circulation and cooling of the air inside the gear box, reduce the operating temperature and pressure, and improve the operating stability and service life of the gear box. Some gear line speed high splash lubrication single-stage transmission gear box, the structure of conventional air filter with oil baffle is easy to cause atomized lubricating oil to seep out of the air filter. SUMMARY
[0003] The utility model aims to, for example, provide an anti-seepage oil air filter and gear box, which can reduce the probability of atomized lubricating oil seeping out of the air filter, improve resource utilization efficiency and reduce operating cost.
[0004] The embodiments of the utility model can be implemented as follows:
[0005] In a first aspect, the utility model provides an anti-seepage oil air filter, comprising a filter body and an adapter, wherein:
[0006] The adapter is provided with a flow channel, and the flow channel has at least one bending section in its extension direction; the adapter is connected with the filter body, and the flow channel communicates with the filter channel of the filter body;
[0007] The adapter or the filter body is used to connect with the shell of the gear box, and the port of the flow channel away from the filter body is located in the cavity surrounded by the shell.
[0008] In an optional embodiment, the adapter comprises an adapter pipe and an elbow pipe, one end of the adapter pipe is connected with the filter body, the other end of the adapter pipe is connected with one end of the elbow pipe, and the other end of the elbow pipe is used to extend into the cavity;
[0009] The lumen of the adapter pipe and the lumen of the elbow pipe communicate to form the flow channel; the bending section is arranged in the elbow pipe.
[0010] In an optional embodiment, an external thread groove is arranged on the adapter pipe for screwing with the shell.
[0011] In an optional embodiment, the adapter pipe is threadedly connected with the elbow pipe.
[0012] In an optional embodiment, the filter body is threadedly connected with the adapter pipe.
[0013] In an optional embodiment, the elbow pipe is configured as a right-angle pipe or a U-shaped pipe.
[0014] In an optional embodiment, the adapter pipe comprises a first pipe body and a second pipe body connected with each other, the first pipe body has an outer diameter larger than that of the second pipe body, the filter body is inserted into the first pipe body, and the elbow pipe is inserted into the second pipe body.
[0015] In a second aspect, the utility model provides a gear box, the gear box comprises:
[0016] The housing and the air filter with oil leakage prevention of any one of the preceding embodiments, the adapter is installed on the housing, and the end of the flow channel is communicated with a cavity surrounded by the housing.
[0017] In an optional embodiment, the gear box further comprises an output gear shaft, the output gear shaft is rotatably matched with the housing, the housing has an inner side wall perpendicular to the axis of the output gear shaft, and the port of the flow channel away from the filter body is directed to the inner side wall.
[0018] In an optional embodiment, the distance between the inner side wall and the port of the flow channel is set to 5-10mm.
[0019] The beneficial effects of the utility model embodiment include, for example:
[0020] In conclusion, the air filter with oil leakage prevention provided by the embodiment can prolong the length of the flow channel in limited space by additionally arranging an adapter at the bottom end of the filter body, the adapter has a flow channel connected with the filter body, and the flow channel has at least one bending section. In this way, the speed of the atomized lubricating oil is reduced after entering the flow channel, and the atomized lubricating oil is prevented from directly impacting the filter body, thereby reducing the probability of leakage of the atomized lubricating oil from the filter body. At the same time, due to the design of the bending section of the flow channel, the travel distance of the atomized lubricating oil to the filter body is increased, and the time of the atomized lubricating oil staying in the flow channel is increased, the atomized lubricating oil is more likely to be liquefied during the flow process, and the liquefied lubricating oil can flow back to the housing under the action of gravity, thereby reducing the probability of oil leakage and improving resource utilization. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained from these drawings without creative labor.
[0022] Figure 1 It is a schematic view of the anti-seepage oil air filter of the embodiment of the present application.
[0023] Figure 2 It is a schematic view of the adapter of the embodiment of the present application.
[0024] Figure 3 It is a schematic view of the gear box of the embodiment of the present application.
[0025] Icon:
[0026] 100-filter body; 200-adapter; 201-flow channel; 202-bent section; 210-adapter pipe; 211-first pipe body; 212-second pipe body; 220-ell; 300-housing; 310-inner side wall; 320-body; 330-sight hole cover; 400-output gear shaft; 500-adjusting pipe. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0029] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0030] In the description of the utility model, it needs to be explained that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0031] In addition, if the terms "first", "second" and the like are used only to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0032] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.
[0033] In the prior art, some gearboxes are provided with air filters, which are generally installed on the gearbox body, and the output gear shaft 400 in the gearbox body is under high-speed rotating conditions, part of the lubricating oil splashes to the position of the air filter and directly enters the air filter, which is easy to seep out from the air filter. And the high-temperature atomized lubricating oil is also easy to seep out from the air filter, which is not conducive to the use of the air filter and increases the consumption of lubricating oil, increasing the operating cost.
[0034] In view of this, the designer provides an anti-seepage air filter which can reduce the seepage probability of lubricating oil from the filter body 100.
[0035] Please refer to Figure 1 and Figure 2 The embodiment provides an anti-seepage air filter, which comprises a filter body 100 and an adapter 200. The adapter 200 is provided with a flow channel 201, and the flow channel 201 has at least one bending section 202 in its extension direction. The adapter 200 is connected with the filter body 100, and the flow channel 201 is connected with the filter channel of the filter body 100. The adapter 200 or the filter body 100 is used for connecting with the shell 300 of the gearbox, and the port of the flow channel 201 away from the filter body 100 is located in the cavity surrounded by the shell 300.
[0036] As described above, the working principle of the anti-seepage air filter provided by the embodiment is as follows:
[0037] During the operation of the gear box, the external air is filtered by the filter body 100 and enters the cavity surrounded by the shell 300 of the gear box from the flow channel 201, and the air in the cavity can also be discharged from the filter body 100, thereby realizing the circulation of the air inside and outside the shell 300, reducing the operation temperature and pressure, and ensuring the stable operation of the gear box. Since the flow channel 201 has at least one bending section 202 in the extension direction thereof, the length of the flow channel 201 can be extended in the limited space, and the atomized lubricating oil liquid in the shell 300 is blocked at the bending section 202 after entering the flow channel 201, thereby reducing the speed, avoiding the atomized lubricating oil liquid from directly impacting the filter body 100, and reducing the probability of leakage of the atomized lubricating oil liquid from the filter body 100. Meanwhile, due to the design of the bending section 202 of the flow channel 201, the travel of the atomized lubricating oil liquid to the filter body 100 is increased, the time of the atomized lubricating oil liquid staying in the flow channel 201 is increased, the atomized lubricating oil liquid is more likely to be liquefied during the flow process, and the liquefied lubricating oil liquid can flow back to the shell 300 under the action of gravity, thereby reducing the probability of oil leakage and improving the resource utilization.
[0038] The following embodiments illustrate the detailed structure of the oil-impermeable air filter of the present application by way of example.
[0039] Please refer to Figure 1 and Figure 2 In the embodiment, optionally, the oil-impermeable air filter comprises a filter body 100 and an adapter 200. The filter body 100 is connected with the adapter 200, and the adapter 200 is used for mounting the filter body 100 on the shell 300 of the gear box.
[0040] In the embodiment, it should be noted that the filter body 100 is a known structure, and the structure of the filter body 100 is not improved in the embodiment. In order to avoid repetitive and tedious description, the detailed structure of the filter body 100 and the filtering principle thereof are not described in detail in the embodiment, and the known technology can be referred to.
[0041] Please refer to Figure 1 and Figure 2 In the embodiment, optionally, the adapter 200 comprises an adapter pipe 210 and an elbow pipe 220. One end of the adapter pipe 210 is connected with the filter body 100, the other end of the adapter pipe 210 is connected with the elbow pipe 220, and the elbow pipe 220 extends into the cavity surrounded by the shell 300. The lumen of the adapter pipe 210 and the lumen of the elbow pipe 220 are communicated and form the flow channel 201. The bending section 202 of the flow channel 201 is formed in the lumen of the elbow pipe 220, that is, the bending part of the elbow pipe 220 is the bending section 202.
[0042] Optionally, the adapter pipe 210 comprises an integrated first pipe body 211 and a second pipe body 212, both of which can be circular pipes, coaxially arranged to facilitate processing and manufacturing, and the outer diameter of the first pipe body 211 is larger than that of the second pipe body 212. During assembly, the filter body 100 is inserted into the first pipe body 211, and then the second pipe body 212 can be inserted through the housing 300 of the gearbox, so that the second pipe body 212 is connected with the housing 300, and then the elbow pipe 220 is connected with the second pipe body 212, effectively reducing the installation difficulty.
[0043] It should be understood that, since the outer diameter of the second pipe body 212 is designed to be smaller than that of the first pipe body 211, the consumption of materials can be reduced, and since the second pipe body 212 is connected with the housing 300, the diameter of the assembly hole formed on the housing 300 can be reduced, which ensures the firm connection between the second pipe body 212 and the housing 300 without affecting the strength of the housing 300.
[0044] Optionally, the filter body 100 can be inserted into the first pipe body 211 and screwed with the first pipe body 211.
[0045] Optionally, the outer pipe wall of the second pipe body 212 can be provided with an external thread groove, and the assembly hole on the housing 300 is a threaded hole, and the external thread groove is screwed with the thread.
[0046] Optionally, the port of the second pipe body 212 away from the first pipe body 211 can be processed into a threaded hole, and the elbow pipe 220 can be screwed into the threaded hole.
[0047] Please refer to Figure 1 and Figure 2 In this embodiment, the elbow pipe 220 can be provided as a right-angle pipe or a U-shaped pipe, and obviously, in other embodiments, the elbow pipe 220 can also be a pipe body with other angles.
[0048] In addition, in some embodiments, the elbow pipe 220 can be provided with multiple bending portions, so that the flow channel 201 has multiple bending sections 202, which can further increase the fluid movement stroke and reduce the oil leakage probability of the filter body 100.
[0049] The oil leakage prevention air filter provided in this embodiment has at least one bending section 202 in the flow channel 201, so that the atomized lubricating oil liquid is blocked at the bending section 202 when flowing towards the filter body 100, the speed is reduced, and it is not easy to reach the filter body 100 and leak. At the same time, the design of the bending section 202 increases the fluid movement stroke, and the atomized lubricating oil liquid is easily liquefied when flowing in the flow channel 201, which can flow back to the housing 300 under the action of gravity, and the resource utilization rate is high.
[0050] Please refer to Figure 3The embodiment also provides a gear box, which comprises a shell 300 and the oil-proof air filter in the above embodiment, and the adapter 200 is mounted on the shell 300, and the end of the flow channel 201 communicates with a cavity surrounded by the shell 300.
[0051] Optionally, the gear box further comprises an output gear shaft 400, the output gear shaft 400 is rotatably connected with the shell 300, the shell 300 has an inner side wall 310 which is perpendicular to the axis of the output gear shaft 400, and the end of the flow channel 201 which is away from the filter body 100 is directed to the inner side wall 310. In this way, the partial hole section of the flow channel 201 extends along the axis of the output gear shaft 400, and the end face where the end of the flow channel 201 is located is substantially perpendicular to the output gear shaft 400. The lubricating oil agitated by the output gear shaft 400 is less likely to directly enter the flow channel 201 from the end, thereby reducing the probability of oil leakage from the filter body 100.
[0052] Further, the distance between the inner side wall 310 and the end of the flow channel 201 is L, and the value of L can be 5-10mm, for example, the distance between the inner side wall 310 and the end of the flow channel 201 can be 5mm, 7.5mm or 10mm, etc. It is worth noting that the distance between the end of the flow channel 201 and the inner side wall 310 can be controlled by additionally arranging an adjusting pipe 500 at the end of the elbow pipe 220. The adjusting pipe 500 can be a steel pipe, the length of the adjusting pipe 500 is designed as required, and the adjusting pipe 500 can be screw-connected with the elbow pipe 220.
[0053] By controlling the distance between the inner side wall 310 and the flow channel 201, the probability of the atomized lubricating oil entering the flow channel 201 from the end can be further reduced, thereby reducing the probability of oil leakage from the filter body 100.
[0054] It should be understood that, in some embodiments, the shell 300 comprises a body 320 and a sight hole cover 330 mounted on the top of the body 320, the sight hole cover 330 can be used to observe the internal condition of the cavity, and the sight hole cover 330 can be fixed on the body 320 by bolts or the like. The adapter pipe 210 can be fixed on the sight hole cover 330.
[0055] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which shall be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims
1. An oil-impervious air filter, characterized by, The filter comprises a filter body (100) and an adapter (200), wherein: The adapter (200) is provided with a flow channel (201) having at least one bending section (202) in the extension direction thereof; the adapter (200) is connected with the filter body (100), and the flow channel (201) communicates with a filter channel of the filter body (100); The adapter (200) or the filter body (100) is used to be connected with a housing (300) of a gear box, and an end of the flow channel (201) away from the filter body (100) is located in a cavity enclosed by the housing (300).
2. The oil-proof air filter according to claim 1, wherein: The adapter (200) comprises an adapter pipe (210) and an elbow pipe (220), one end of the adapter pipe (210) is connected with the filter body (100), the other end of the adapter pipe (210) is connected with one end of the elbow pipe (220), and the other end of the elbow pipe (220) is used to extend into the cavity; The lumen of the adapter pipe (210) and the lumen of the elbow pipe (220) are communicated to form the flow channel (201), and the bending section (202) is arranged in the elbow pipe (220).
3. The oil-proof air filter according to claim 2, wherein: An external thread groove is arranged on the adapter pipe (210) and is used to be screwed with the housing (300).
4. The oil-proof air filter according to claim 2, wherein: The adapter pipe (210) is screwed with the elbow pipe (220).
5. The oil-proof air filter according to claim 2, wherein: The filter body (100) is screwed with the adapter pipe (210).
6. The oil-proof air filter according to claim 2, wherein: The elbow pipe (220) is arranged as a right-angle pipe or a U-shaped pipe.
7. The oil-proof air filter according to any one of claims 2-6, wherein: The adapter pipe (210) comprises a first pipe body (211) and a second pipe body (212) connected with each other, the outer diameter of the first pipe body (211) is greater than that of the second pipe body (212), the filter body (100) is inserted into the first pipe body (211), and the elbow pipe (220) is inserted into the second pipe body (212).
8. A gear box characterized in that, The gear box comprises: The housing (300) and the oil-proof air filter according to any one of claims 1-7, the adapter (200) is mounted on the housing (300), and an end of the flow channel (201) communicates with the cavity enclosed by the housing (300).
9. The gear box according to claim 8, wherein: The gear box further comprises an output gear shaft (400) rotatably engaged with the housing (300), the housing (300) having an inner side wall (310) perpendicular to the axis of the output gear shaft (400), the flow passage (201) facing the inner side wall (310) away from the port of the filter body (100).
10. The gear box as claimed in claim 9, wherein: The distance between the inner side wall (310) and the port of the flow passage (201) is set to 5-10 mm.