A sump plate and a transmission with a sump plate

By designing inclined oil guide grooves in the transmission to collect and deliver lubricating oil, the problem of poor lubrication at the first gear of the second shaft was solved, achieving full lubrication of the roller bearings and reducing the failure rate, thereby improving manufacturing efficiency and strength.

CN224397088UActive Publication Date: 2026-06-23SHAANXI FAST GEAR CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI FAST GEAR CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing transmissions, the roller bearings at the first gear of the second shaft are poorly lubricated, especially when going uphill or downhill, resulting in a high failure rate.

Method used

Design an oil collection plate comprising an inclined oil guide groove for the reverse gear of the two shafts and an oil guide groove for the first gear of the two shafts, to collect splashed lubricating oil and deliver it to the bearing to ensure adequate lubrication.

Benefits of technology

The oil guide groove structure of the oil collection plate achieves full lubrication of the roller bearing at the first gear of the second shaft, significantly reducing the failure rate, improving manufacturing efficiency and strength, and reducing manufacturing costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224397088U_ABST
    Figure CN224397088U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of oil collecting plates, including oil collecting plate body, still including the two-axis reverse gear oil guide groove of installing in the bottom of oil collecting plate body one side and the two-axis gear oil guide groove of installing in the bottom of oil collecting plate body other side;The two-axis reverse gear oil guide groove is arranged by the edge of oil collecting plate body to center inclination, the two-axis gear oil guide groove is arranged by the edge of oil collecting plate body to center inclination.The oil collecting plate provided by the utility model, by setting two-axis reverse gear oil guide groove and two-axis gear oil guide groove collection two-axis reverse gear and two-axis gear oil splashing of oil liquid and the oil liquid collected is transported to bearing, so that roller bearing is fully lubricated, greatly reduce the failure rate of this bearing.The oil collecting plate provided by the utility model, integrally stamping molding, improve the strength and accuracy of component whole, shorten technological process, significantly improve the efficiency of manufacturing and processing, reduce manufacturing cost.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of clutch technology, specifically to an oil collecting plate and a transmission with an oil collecting plate. Background Technology

[0002] The transmission is one of the core components of a vehicle's drivetrain, and its reliability plays a crucial role in the overall performance of the system. Needle roller bearings, as key support components in the transmission, rely on lubricating oil splashed onto gears, shafts, and other parts for lubrication. This lubricating oil enters the lubrication points through radial oil holes and end face oil grooves on the gears. However, for the bearings in the relatively enclosed environment of the first gear on the second shaft, the amount of lubricating oil reaching the needle roller bearing is limited, resulting in poor lubrication, especially when going uphill or downhill. As the transmission tilts with the vehicle, the lubrication effect is further reduced, making the bearings more prone to burning due to poor lubrication. Market failure data analysis shows that the failure rate of roller bearings in the first gear on the second shaft is relatively high, and their failure risk cannot be ignored. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an oil collection plate and a transmission with an oil collection plate, so as to solve the problem that the transmission in the existing technology is prone to high failure rate due to insufficient lubrication in some parts.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an oil collecting plate, including an oil collecting plate body, and further including a two-axis reverse gear oil guide groove installed at the bottom of one side of the oil collecting plate body and a two-axis first gear oil guide groove installed at the bottom of the other side of the oil collecting plate body.

[0005] The oil guide groove of the two-axis reverse gear is arranged inclined from the edge of the oil collection plate body towards the center, and the oil guide groove of the two-axis first gear is arranged inclined from the edge of the oil collection plate body towards the center.

[0006] This utility model also has the following technical features:

[0007] The angle between the oil guide groove of the reverse gear of the two shaft and the horizontal plane is 5.2°, and the angle between the oil guide groove of the first gear of the two shaft and the horizontal plane is 9.2°.

[0008] It also includes a mounting plate that is vertically connected to one side of the oil collection plate body, and the mounting plate has mounting holes.

[0009] The mounting plate is located on the side of the oil collecting plate body where the two-shaft, one-speed gear oil guide groove is installed.

[0010] It also includes anti-fork corners that are vertically connected to the mounting plate.

[0011] The anti-rotation fork angle includes two stiffening plates that are perpendicularly connected to the mounting plate, and an anti-rotation cavity is formed between the two stiffening plates.

[0012] It also includes a groove at the bottom of the oil collecting plate body, and the oil guide groove of the two-axis reverse gear and the oil guide groove of the two-axis first gear are located on both sides of the groove.

[0013] This utility model also provides a transmission with an oil collecting plate, including a transmission body and the aforementioned oil collecting plate, wherein the oil collecting plate is installed in the transmission body.

[0014] The oil collection plate is connected to the transmission housing by screws.

[0015] The transmission housing is also equipped with ribs, which cooperate with the anti-rotation cavity.

[0016] The position of the oil guide groove of the reverse gear on the two shafts corresponds to the position of the reverse gear, and the position of the oil guide groove of the first gear on the two shafts corresponds to the position of the first gear.

[0017] Compared with the prior art, this utility model has the following technical effects:

[0018] (I) The oil collection plate provided by this utility model collects the oil splashed by the reverse gear and the first gear of the second shaft by setting the oil guide groove of the reverse gear and the first gear of the second shaft, and transports the collected oil to the bearing, so that the roller bearing is fully lubricated and the failure rate of the bearing is greatly reduced.

[0019] (II) The oil collecting plate provided by this utility model is integrally stamped, which improves the overall strength and precision of the component, shortens the process flow, significantly improves the efficiency of manufacturing and processing, and reduces manufacturing costs.

[0020] (III) The oil collecting plate, the oil guide groove of the reverse gear of the two shafts and the oil guide groove of the first gear of the two shafts provided by this utility model have a certain slope. During the uphill or downhill process, the oil collecting plate can still collect the splashed lubricating oil, which has a better guiding and lubrication effect.

[0021] (IV) The transmission with an oil collection plate provided by this utility model collects the oil splashed by the reverse gear and the first gear of the second shaft, and then flows through the oil guide groove structure and drips into the oil groove and oil hole of the first gear of the second shaft. This allows a large amount of oil to flow into the roller bearing of the first gear of the second shaft, so that the roller bearing is fully lubricated and the failure rate of the bearing is greatly reduced.

[0022] (V) The transmission with an oil collection plate provided by this utility model uses hexagonal head screws to fix the oil collection plate axially and uses ribs and anti-rotation forks to cooperate for anti-rotation limiting. The method is simple and reliable and has the advantages of high assembly efficiency and low cost. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the oil collecting plate of this utility model. Figure I .

[0024] Figure 2 This is a schematic diagram of the overall structure of the oil collecting plate of this utility model. Figure II .

[0025] Figure 3 These are three views of the oil collecting plate of this utility model.

[0026] Figure 4 This is a schematic diagram of the gearbox of this utility model.

[0027] Figure 5 This is a schematic diagram of the working process of the oil collecting plate of this utility model. Figure I .

[0028] Figure 6 This is a schematic diagram of the working process of the oil collecting plate of this utility model. Figure II .

[0029] The meanings of the labels in the attached diagram are as follows:

[0030] 1-Oil collecting plate body, 2-Second shaft reverse gear oil guide groove, 3-Second shaft first gear oil guide groove, 4-Mounting plate, 5-Mounting hole, 6-Anti-rotation fork angle, 7-Groove, 8-Transmission housing, 9-Screw, 10-Rib plate, 11-Reverse gear, 12-First gear, 13-Second shaft, 14-Bearing.

[0031] 6-1 Rib plate, 6-2 Anti-rotation cavity.

[0032] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0033] Unless otherwise specified, all components in this invention are made from components known in the prior art.

[0034] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0035] Example 1:

[0036] This embodiment provides an oil collecting plate, such as Figures 1-3 As shown, it includes an oil collection plate body 1, a two-axis reverse gear oil guide groove 2 installed on the bottom of one side of the oil collection plate body 1, and a two-axis first gear oil guide groove 3 installed on the bottom of the other side of the oil collection plate body 1.

[0037] The oil guide groove 2 of the two-axis reverse gear is arranged inclined from the edge of the oil collection plate body 1 towards the center, and the oil guide groove 3 of the two-axis first gear is arranged inclined from the edge of the oil collection plate body 1 towards the center.

[0038] The oil collecting plate provided by this utility model collects the oil splashed by the reverse gear and the first gear of the second shaft by setting the oil guide groove 2 and the first gear of the second shaft, and transports the collected oil to the bearing, so that the roller bearing is fully lubricated and the failure rate of the bearing is greatly reduced.

[0039] As a preferred embodiment:

[0040] The angle between the oil guide groove 2 of the two-axis reverse gear and the horizontal plane is 5.2°, and the angle between the oil guide groove 3 of the two-axis first gear and the horizontal plane is 9.2°. The length and angle of the oil guide groove 2 of the two-axis reverse gear and the oil guide groove 3 of the two-axis first gear can be adjusted according to actual needs.

[0041] As a preferred embodiment:

[0042] It also includes a mounting plate 4 vertically connected to one side of the oil collecting plate body 1, and the mounting plate 4 has mounting holes 5. The mounting holes 5 cooperate with screws to provide axial positioning.

[0043] The mounting plate 4 is located on the side of the oil collection plate body 1 on which the two-shaft, one-gear oil guide groove 3 is installed.

[0044] As a preferred embodiment:

[0045] It also includes the anti-rotation fork angle 6, which is vertically connected to the mounting plate 4.

[0046] The anti-rotation fork angle 6 includes two stiffening plates 6-1 that are perpendicularly connected to the mounting plate 4, and an anti-rotation cavity 6-2 is formed between the two stiffening plates 6-1.

[0047] The anti-rotation cavity 6-2 formed in the middle of the two stiffening plates 6-1 is based on the thickness of the cast rib plate of the shell to prevent the oil collecting plate from rotating in the axial direction.

[0048] As a preferred embodiment:

[0049] It also includes a groove 7 at the bottom of the oil collecting plate body 1, and the oil guide groove 2 of the two-axis reverse gear and the oil guide groove 3 of the two-axis first gear are located on both sides of the groove 7.

[0050] A groove is formed at the junction of the reverse gear oil guide groove 2 and the first gear oil guide groove 3 of the second shaft. The lengths of the reverse gear oil guide groove 2 and the first gear oil guide groove 3 of the second shaft are referenced to the position where the lubricating oil needs to drip.

[0051] Example 2:

[0052] This embodiment provides a transmission with an oil collection plate, such as... Figure 4 As shown, it includes a transmission body and an oil collection plate as described in Embodiment 1, the oil collection plate being installed in the transmission body.

[0053] The pre-cast screw holes and ribs for assembling the transmission housing with the oil collection plate reduce manufacturing steps and lower costs.

[0054] As a preferred embodiment:

[0055] The oil collection plate is connected to the transmission housing 8 by screws 9.

[0056] The transmission housing 8 is also equipped with a rib plate 10, which cooperates with the anti-rotation cavity 6-2.

[0057] The reverse gear 11 and the first gear 12 are mounted on the second shaft 14.

[0058] The position of the oil guide groove 2 of the two-axis reverse gear corresponds to the position of the reverse gear 11, and the position of the oil guide groove 3 of the two-axis first gear corresponds to the position of the first gear 12.

[0059] Mounting hole 5 engages with the screw hole mating surface of the transmission housing, and is axially limited by an internal hexagonal head screw. Anti-rotation fork 6 on the oil collection plate is installed on the rib plate 10 of the transmission housing for anti-rotation limitation. The reverse gear oil guide groove 2 and the first gear oil guide groove 3 of the second shaft on the oil collection plate are respectively the reverse gear and the first gear of the second shaft. The first gear of the second shaft is supported on the second shaft by a roller bearing, and the second shaft is supported on the transmission housing by a second shaft bearing.

[0060] The transmission with an oil collecting plate provided by this utility model collects the oil splashed from the reverse gear and first gear of the second shaft, and then flows it through the oil guide groove structure and drips it into the oil groove and oil hole of the first gear of the second shaft. This allows a large amount of oil to flow into the roller bearing of the first gear of the second shaft, so that the roller bearing is fully lubricated and the failure rate of the bearing is greatly reduced.

[0061] The specific working process of this utility model:

[0062] like Figure 5 As shown, during the operation of the transmission, the first gear of the second shaft rotates counterclockwise, and the oil is agitated by the first gear of the second shaft and splashes counterclockwise. The splashed lubricating oil is blocked by the oil collection plate baffle and flows into the oil guide groove 3 of the first gear of the second shaft. The oil passing through the oil guide groove 3 of the first gear of the second shaft flows directly into the roller bearing hole through the oil hole and oil groove of the first gear of the second shaft, so that the bearing is fully lubricated.

[0063] like Figure 6 As shown, during the operation of the transmission, the second-shaft reverse gear rotates clockwise, and the oil is agitated by the second-shaft reverse gear and splashes clockwise. The splashed lubricating oil is blocked by the oil collection plate baffle and flows into the second-shaft reverse gear oil guide groove 2. The oil passing through the second-shaft reverse gear oil guide groove 2 flows directly into the roller bearing hole through the second-shaft first gear oil hole and oil groove to ensure good lubrication of the bearing. During normal operation of the transmission, the gears rotate continuously, and the oil collection plate guide groove always contains oil. All the oil in the oil collection plate can enter the bearing hole, thus lubricating the roller bearing and ensuring that the roller bearing is not burned.

[0064] The above technical solutions are only preferred embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art without creative effort within the technical scope disclosed in this utility model are covered within the protection scope of this utility model.

Claims

1. An oil collecting plate, characterized in that, It includes an oil collection plate body (1), and also includes a two-shaft reverse gear oil guide groove (2) installed at the bottom of one side of the oil collection plate body (1) and a two-shaft first gear oil guide groove (3) installed at the bottom of the other side of the oil collection plate body (1); The oil guide groove (2) of the two-axis reverse gear is arranged inclined from the edge of the oil collection plate body (1) towards the center, and the oil guide groove (3) of the two-axis first gear is arranged inclined from the edge of the oil collection plate body (1) towards the center.

2. The oil collecting plate as described in claim 1, characterized in that, The oil guide groove (2) of the two-axis reverse gear has an angle of 5.2° with the horizontal plane, and the oil guide groove (3) of the two-axis first gear has an angle of 9.2° with the horizontal plane.

3. The oil collecting plate as described in claim 1, characterized in that, It also includes a mounting plate (4) that is vertically connected to one side of the oil collection plate body (1), and the mounting plate (4) has mounting holes (5); The mounting plate (4) is located on the side of the oil collection plate body (1) on which the two-shaft, one-gear oil guide groove (3) is installed.

4. The oil collecting plate as described in claim 3, characterized in that, It also includes anti-fork angles (6) that are vertically connected to the mounting plate (4); The anti-rotation fork angle (6) includes two stiffening plates (6-1) that are perpendicularly connected to the mounting plate (4), and an anti-rotation cavity (6-2) is formed between the two stiffening plates (6-1).

5. The oil collecting plate as described in claim 2, characterized in that, It also includes a groove (7) opened at the bottom of the oil collection plate body (1), and the oil guide groove (2) of the two-axis reverse gear and the oil guide groove (3) of the two-axis first gear are located on both sides of the groove (7).

6. A transmission with an oil collecting plate, comprising a transmission body, characterized in that, It also includes an oil collection plate as described in any one of claims 1-5, wherein the oil collection plate is installed in the transmission body.

7. The transmission with an oil collecting plate as described in claim 6, characterized in that, The oil collection plate is connected to the transmission housing (8) by screws (9); The transmission housing (8) is also equipped with a rib plate (10), which cooperates with the anti-rotation cavity (6-2); The position of the oil guide groove (2) of the two-axis reverse gear corresponds to the position of the reverse gear (11), and the position of the oil guide groove (3) of the two-axis first gear corresponds to the position of the first gear (12).