Lubricating oil guide structure applied to front bearing of longitudinal transmission
By designing an oil collection groove and an internal oil groove in the housing of the longitudinally mounted transmission front bearing, combined with an oil agitator, the problem of poor lubrication of the front bearing was solved, achieving effective lubrication and improving lubrication efficiency and fluidity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YINCHUAN WEIMA MOTOR CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-19
AI Technical Summary
In the prior art, the front bearing of a longitudinally mounted transmission cannot be effectively lubricated because it is far from the oil agitator, leading to overheating and bearing failure.
Design a lubrication and oil guiding structure that includes an oil collection groove and an oil groove inside the housing. Combined with an oil stirring wheel, the lubricating oil is guided to flow through the chamber structure of the oil collection groove, ensuring that the lubricating oil can effectively reach the front bearing.
It achieves effective lubrication when the front bearing is far from the lubrication oil area, improves lubrication efficiency, avoids bearing overheating failure, has a compact structure and is easy to install, and is suitable for normal driving and climbing conditions.
Smart Images
Figure CN224260875U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transmission bearing lubrication technology, and in particular to a lubrication oil guiding structure applied to the front bearing of a longitudinally mounted transmission. Background Technology
[0002] Currently, in the design and development of longitudinal transmissions, it is common to add a planetary gear at the front of the transmission to increase torque. The drawback of this design is that the input shaft bearing of the original transmission is moved forward, away from the transmission body. The original lubricating oil in the transmission body is mainly stored in the area of the reduction gear shaft. Therefore, the rotation of the gear shaft itself cannot splash this part of the lubricating oil to the front bearing, thus making the lubrication of the front bearing a new problem.
[0003] Specifically, in the existing technology, the lubrication of longitudinal gearboxes still mostly relies on the rotation of the gear shaft components themselves to splash lubricating oil. Some designs add an oil churning wheel as an auxiliary oil churning wheel. However, when the input shaft bearing is far away from the oil churning wheel, or when the bearing is blocked by other parts, even with an oil churning wheel, it is not possible to effectively splash lubricating oil to the bearing position by agitation alone. As a result, the bearing cannot be effectively lubricated, which in turn leads to bearing overheating and failure.
[0004] Therefore, how to provide a lubrication guide structure for the front bearing of a longitudinally mounted transmission that can effectively lubricate the front bearing and improve the fluidity of the lubricating oil has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to provide a lubrication and oil guiding structure for the front bearing of a longitudinally mounted transmission, in order to solve the technical problem that the front bearing of the existing transmission cannot be effectively lubricated because it is far away from the oil churning wheel.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A lubrication oil guiding structure for the front bearing of a longitudinally mounted transmission includes: a transmission housing, wherein the transmission housing is provided with an oil collection groove and the transmission housing has an internal oil groove, and an oil stirring wheel is installed on an intermediate shaft;
[0008] The oil collection trough has a chamber, and the oil collection trough is inclined, with the chamber located at a high position in the oil collection trough; the oil trough inside the housing is inclined toward the input shaft bearing.
[0009] In practical applications, the oil collection groove is installed on the gearbox housing by bolt connection.
[0010] The oil churning wheel is bolted to the intermediate shaft.
[0011] Specifically, the inner ring of the input shaft bearing is interference-fitted and installed on the input shaft, while the outer ring is clearance-fitted and installed inside the gearbox housing.
[0012] Compared with the prior art, the lubrication guide structure for the front bearing of a longitudinally mounted transmission described in this utility model has the following advantages:
[0013] The lubrication and oil guiding structure for the front bearing of a longitudinally mounted transmission provided by this utility model, through the setting of an oil agitator, an oil collection groove, and an oil groove inside the housing, allows the front bearing to still be lubricated even when it is far from the lubrication area. The agitator stirs up and splashes the lubricating oil, and then the chamber structure on the oil collection groove stores the lubricating oil while guiding it to flow into the oil groove inside the housing. Finally, it flows to the bearing end through the oil groove inside the housing, thereby achieving the lubrication effect. The lubrication and oil guiding structure for the front bearing of a longitudinally mounted transmission provided by this utility model has a compact structure, is easy to install, occupies little space, has high lubrication efficiency, and can effectively lubricate the front bearing of the transmission whether the vehicle is driving normally or climbing a hill, further improving the fluidity of the lubricating oil. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a lubrication guide structure for the front bearing of a longitudinally mounted transmission, provided as an embodiment of the present invention.
[0015] Figure label:
[0016] 1-Gearbox housing; 11-Inner oil groove of housing; 2-Input shaft bearing; 3-Oil collection groove; 31-Cavity; 4-Oil stirring wheel; 5-Intermediate shaft; 6-Input shaft. Detailed Implementation
[0017] For ease of understanding, the lubrication and oil guiding structure for the front bearing of a longitudinally mounted transmission provided in this embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
[0018] This utility model embodiment provides a lubrication oil guiding structure for the front bearing of a longitudinally mounted transmission, such as... Figure 1 As shown, it includes: a gearbox housing 1, the gearbox housing 1 is provided with an oil collection groove 3, and the gearbox housing 1 has an internal oil groove 11, while an oil stirring wheel 4 is installed on the intermediate shaft 5;
[0019] The oil collection tank 3 has a chamber 31, and the oil collection tank 3 is inclined, while the chamber 31 is located at the high position of the oil collection tank 3; the oil trough 11 inside the housing is inclined toward the input shaft bearing 2.
[0020] Compared with the prior art, the lubrication guide structure for the front bearing of a longitudinally mounted transmission described in this embodiment of the invention has the following advantages:
[0021] The lubrication and oil guiding structure for the front bearing of a longitudinally mounted transmission provided in this embodiment of the invention, by setting up an oil stirring wheel 4, an oil collecting groove 3, and an oil groove 11 inside the housing, allows the front bearing to still be able to agitate and splash lubricating oil through the stirring of the oil stirring wheel 4, even when it is far from the lubricating oil area. Then, relying on the chamber 31 structure on the oil collecting groove 3, the oil is stored and guided to flow into the oil groove 11 inside the housing, and finally flows to the bearing end through the oil groove 11 inside the housing, thereby achieving the lubrication effect. The lubrication and oil guiding structure for the front bearing of a longitudinally mounted transmission provided in this embodiment of the invention has a compact structure, is easy to install, occupies little space, has high lubrication efficiency, and can effectively lubricate the front bearing of the transmission whether the vehicle is driving normally or climbing a hill, further improving the fluidity of the lubricating oil.
[0022] In practical applications, such as Figure 1 As shown, the oil collection groove 3 can be installed on the gearbox housing 1 by bolt connection.
[0023] Among them, such as Figure 1 As shown, the oil churning wheel 4 can be installed on the intermediate shaft 5 by bolt connection.
[0024] Specifically, such as Figure 1 As shown, the inner ring of the input shaft bearing 2 is interference-fitted and installed on the input shaft 6, while the outer ring is clearance-fitted and installed inside the gearbox housing 1.
[0025] The lubrication oil transfer process of the lubrication oil guiding structure applied to the front bearing of a longitudinally mounted transmission, provided in the embodiments of this utility model, will be described in detail below with reference to the accompanying drawings:
[0026] After being agitated by the oil churning wheel 4, the lubricating oil splashes along the inner wall of the gearbox housing 1 into the chamber 31 of the oil collection tank 3. The lubricating oil in the chamber 31 flows downward along the inclined angle designed by the oil collection tank 3 and flows into the oil groove 11 inside the gearbox housing 1. After passing through the downward angle designed by the oil groove 11 inside the housing, it further flows into the bearing seat where the input shaft bearing 2 is installed, thereby lubricating the bearing. In addition, when the vehicle is going uphill, the specific downward inclined angle of the oil collection tank 3 can ensure that even when the gearbox is tilted upward due to the vehicle going uphill, the oil collection tank 3 can still allow the lubricating oil to complete the entire lubrication flow process, ensuring that the front bearing of the gearbox will not fail due to poor lubrication.
[0027] In summary, the lubrication and oil guiding structure for the front bearing of a longitudinally mounted transmission provided by this utility model embodiment, by adding an oil collection groove 3 and an oil groove 11 inside the housing, and combining it with an oil stirring wheel 4, forms a lubrication system. This allows the bearing to be effectively lubricated even when it is far from the oil stirring wheel 4 or blocked by other parts, and even during uphill sections, thereby preventing the bearing from failing due to overheating.
[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A lubrication guide structure for the front bearing of a longitudinally mounted transmission, characterized in that, include: The gearbox housing is provided with an oil collection groove and has an internal oil groove, and an oil stirring wheel is installed on the intermediate shaft. The oil collection trough has a chamber, and the oil collection trough is inclined, with the chamber located at a high position in the oil collection trough; the oil trough inside the housing is inclined toward the input shaft bearing.
2. The lubrication and oil guiding structure applied to the front bearing of a longitudinally mounted transmission according to claim 1, characterized in that, The oil collection groove is installed on the gearbox housing by bolts.
3. The lubrication and oil guiding structure applied to the front bearing of a longitudinally mounted transmission according to claim 1, characterized in that, The oil churning wheel is bolted to the intermediate shaft.
4. The lubrication guide structure for the front bearing of a longitudinally mounted transmission according to any one of claims 1-3, characterized in that, The inner ring of the input shaft bearing is interference-fitted and installed on the input shaft, while the outer ring is clearance-fitted and installed inside the gearbox housing.