A transmission with an oil return structure

Abstract

The utility model discloses a transmission with oil return structure relates to transmission technical field, including the shell, the bottom of working cavity is provided with the installation of oil collecting pipe, and the bottom end lateral wall of shell is equipped with the oil pipe joint of cooperation and installation, and the oil pipe joint is connected with the oil collecting pipe, and the top of shell is fixedly installed with the top cover, and the top wall of top cover is equipped with the oil inlet, and the oil inlet is equipped with the oil pump assembly between the oil pipe joint, and the bottom wall of top cover is fixedly installed with the oil collecting tank, and the bottom wall of oil collecting tank is evenly provided with several groups of oil distribution holes. The utility model discloses design scheme through setting up oil collecting pipe and oil collecting groove, effectively collect the oil liquid in working cavity, and are connected through the oil pipe joint and oil pump assembly, ensure that the oil liquid can continuously, evenly flow to the oil collecting tank, and utilize oil distribution hole and make the oil liquid even drop on transmission assembly, guarantee that each movement part in transmission inside gets sustained, sufficient lubrication, thereby significantly reduce the wear and tear between parts, prolong the service life of transmission.

Description

Technical Field

[0001] This utility model relates to the field of transmission technology, and in particular to a transmission with an oil return structure. Background Technology

[0002] In existing transmission designs, splash lubrication is a common lubrication method, widely used in various mechanical devices. Splash lubrication relies on the high-speed rotation of rotating components inside the transmission (such as gears and shafts) to splash oil onto surrounding lubrication surfaces, thus lubricating and cooling the friction components. Due to its simple structure and low cost, it has been widely used in mechanical transmission systems such as transmissions.

[0003] However, splash lubrication also has certain limitations. First, the lubrication effect depends on factors such as the speed of rotating components, the amount of oil, and the viscosity of the oil. Under high-speed operation or high load conditions, the oil may not be able to fully cover all lubrication surfaces, resulting in insufficient lubrication of some components, which in turn increases component wear and reduces transmission efficiency. Especially under certain operating conditions of the transmission, splashed oil may not be evenly distributed, thus affecting overall lubrication performance. Second, since splash lubrication relies mainly on the rotation of components for oil distribution, the oil flow path and distribution are not precise enough, which may lead to poor lubrication in some areas, thus affecting the long-term stability of the transmission. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, the present invention provides a transmission with an oil return structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a transmission with an oil return structure, including a housing, a working chamber inside the housing, a transmission assembly installed in the working chamber, an oil collecting pipe installed at the bottom of the working chamber, an oil pipe connector installed on the bottom side wall of the housing, the oil pipe connector being connected to the oil collecting pipe, a top cover fixedly installed on the top of the housing, an oil inlet provided on the top wall of the top cover, an oil pump assembly provided between the oil inlet and the oil pipe connector, an oil collection tank fixedly installed on the bottom wall of the top cover, and several sets of oil equalization holes evenly opened on the bottom wall of the oil collection tank.

[0006] Furthermore, the oil pump assembly includes a hydraulic pump, a lubricating oil tank, and an oil filter. The input end of the hydraulic pump is connected to the lubricating oil tank, the output end of the hydraulic pump is connected to the oil inlet, the oil pipe joint is connected to the oil filter, and the oil filter is connected to the lubricating oil tank.

[0007] Furthermore, a check valve is connected between the oil pipe joint and the oil filter.

[0008] Furthermore, the bottom wall of the working chamber is a V-shaped surface structure with a central depression. An oil collecting groove is provided in the middle of the bottom wall of the working chamber. The oil collecting groove extends to both ends of the working chamber. The oil collecting pipe is installed in the oil collecting groove. Several sets of fixing brackets are fixedly installed on the outer wall of the oil collecting pipe. The fixing brackets are fixedly installed on the bottom wall of the working chamber. Oil inlet holes are evenly distributed on the side wall of the oil collecting pipe.

[0009] Furthermore, a threaded hole is provided on the bottom side wall of the outer casing, the position of which corresponds to the oil collecting pipe. A first threaded portion is provided on the outer wall of the oil pipe connector, and the oil pipe connector is fitted into the threaded hole. A first sealing cone surface is provided at the bottom of the threaded hole, and a second sealing cone surface matching the first sealing cone surface is provided at the end of the oil pipe connector. A first connector is provided at the end of the oil pipe connector away from the first threaded portion, and a second threaded portion is provided on the outer wall of the first connector.

[0010] Furthermore, a through hole is provided at the center of the first sealing cone surface, the through hole is connected to the oil collection groove, a second connector is provided at the end of the oil pipe joint away from the first connector, the second connector extends into the oil collection groove, a connecting hole is provided at the end of the oil collection pipe near the threaded hole, a sealing ring is fitted on the inner wall of the connecting hole, the second connector is fitted in the connecting hole, and an oil delivery hole is provided through the axis of the oil pipe joint.

[0011] The beneficial effects of this utility model are that, by setting up an oil collection pipe and an oil collection tank, the oil in the working chamber can be effectively collected, and the oil can be connected to the oil pump assembly through the oil pipe joint to ensure that the oil can continuously and evenly flow back to the oil collection tank. The oil distribution hole is used to make the oil drip evenly onto the transmission assembly, ensuring that all moving parts inside the transmission receive continuous and sufficient lubrication, thereby significantly reducing wear between parts and extending the service life of the transmission. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is the front view of the present invention; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction; Figure 5 for Figure 3 A magnified view of a portion of region C in the middle; Figure 6 This is a hydraulic schematic diagram of the present invention.

[0014] In the diagram: 1. Outer shell; 2. Working chamber; 3. Transmission assembly; 4. Oil collection pipe; 5. Oil pipe connector; 6. Top cover; 7. Oil inlet; 8. Oil collection tank; 9. Oil distribution hole; 10. Hydraulic pump; 11. Lubricating oil tank; 12. Oil filter; 13. Check valve; 14. Oil collection trough; 15. Fixing bracket; 16. Oil inlet hole; 17. Threaded hole; 18. First threaded part; 19. First sealing cone surface; 20. Second sealing cone surface; 21. First connector; 22. Second threaded part; 23. Through hole; 24. Second connector; 25. Connecting hole; 26. Sealing ring; 27. Oil delivery hole. Detailed Implementation

[0015] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0016] according to Figure 1-6 As shown, a transmission with an oil return structure includes a housing 1, an internal working chamber 2, a transmission assembly 3 installed inside the working chamber 2, an oil collection pipe 4 installed at the bottom of the working chamber 2, an oil pipe connector 5 installed on the bottom side wall of the housing 1, the oil pipe connector 5 being connected to the oil collection pipe 4, a top cover 6 fixedly installed on the top of the housing 1 by bolts, an oil inlet 7 provided on the top wall of the top cover 6, an oil pump assembly provided between the oil inlet 7 and the oil pipe connector 5, and an oil collection tank 8 fixedly installed on the bottom wall of the top cover 6, with several sets of oil equalization holes 9 evenly opened on the bottom wall of the oil collection tank 8.

[0017] In this embodiment, the oil pump assembly includes a hydraulic pump 10, a lubricating oil tank 11, and an oil filter 12. The input end of the hydraulic pump 10 is connected to the lubricating oil tank 11 via an oil delivery pipe, and the output end of the hydraulic pump 10 is connected to the oil inlet 7 via an oil delivery pipe. The oil pipe connector 5 is connected to the oil filter 12 via an oil delivery pipe, and a one-way valve 13 is connected between the oil pipe connector 5 and the oil filter 12. The one-way valve 13 prevents lubricating oil from flowing back from the oil filter 12 into the working chamber 2. The oil filter 12 is connected to the lubricating oil tank 11 via an oil delivery pipe. Under the action of the hydraulic pump 10, the lubricating oil in the working chamber 2 is delivered to the oil filter 12. The oil filter 12 filters out impurities in the oil and delivers it to the lubricating oil tank 11. At the same time, the lubricating oil in the lubricating oil tank 11 is delivered to the oil collection tank 8 under the action of the hydraulic pump 10. The oil is evenly dripped onto the transmission assembly 3 by the oil distribution holes 9 on the bottom wall of the oil collection tank 8, ensuring that all moving parts inside the transmission receive continuous and sufficient lubrication.

[0018] In this embodiment, the bottom wall of the working chamber 2 is a V-shaped surface structure with a central depression. An oil collecting groove 14 is provided in the middle of the bottom wall of the working chamber 2. The oil collecting groove 14 extends to both ends of the working chamber 2. An oil collecting pipe 4 is installed in the oil collecting groove 14. Several sets of fixing brackets 15 are fixedly installed on the outer wall of the oil collecting pipe 4. The fixing brackets 15 are fixedly installed on the bottom wall of the working chamber 2. Oil inlet holes 16 are evenly distributed on the side wall of the oil collecting pipe 4. The combination of the V-shaped depression structure at the bottom of the working chamber 2 and the setting of the oil collecting groove 14 allows the oil to flow back to the oil collecting pipe 4 in a concentrated manner, thereby avoiding the stagnation and poor flow of oil in the working chamber 2. Furthermore, by setting oil inlet holes 16 on the outer wall of the oil collecting pipe 4, the flow of oil is ensured to be more uniform.

[0019] In this embodiment, a threaded hole 17 is provided on the bottom side wall of the outer casing 1, and the position of the threaded hole 17 corresponds to that of the oil collecting pipe 4. A first threaded portion 18 is provided on the outer wall of the oil pipe connector 5. The oil pipe connector 5 is installed in the threaded hole 17 through threaded engagement. A first sealing cone surface 19 is provided at the bottom end of the threaded hole 17. A second sealing cone surface 20 matching the first sealing cone surface 19 is provided at the end of the oil pipe connector 5. When the oil pipe connector 5 is installed in the threaded hole 17, the first sealing cone surface 19 and the second sealing cone surface 20 are in close contact to prevent oil from leaking outward from the joint between the oil pipe connector 5 and the threaded hole 17. A first connector 21 is provided at the end of the oil pipe connector 5 away from the first threaded portion 18. A second threaded portion 22 is provided on the outer wall of the first connector 21. The oil pipe connector 5 is connected to the external oil supply pipe through the second threaded portion 22.

[0020] In this embodiment, a through hole 23 is provided at the center of the first sealing cone surface 19, and the through hole 23 is connected to the oil collection groove 14. A second connector 24 is provided at the end of the oil pipe joint 5 away from the first connector 21. The second connector 24 extends into the oil collection groove 14. A connecting hole 25 is provided at the end of the oil collection pipe 4 near the threaded hole 17. A sealing ring 26 is fitted on the inner wall of the connecting hole 25. The second connector 24 is inserted into the connecting hole 25. An oil delivery hole 27 is provided through the axial center of the oil pipe joint 5.

[0021] The working principle of this utility model is that, with the cooperation of the oil collection tank 14 and the oil collection pipe 4, the oil in the working chamber 2 is effectively collected. Under the action of the hydraulic pump 10, the oil is discharged from the working chamber through the oil pipe joint 5. After being filtered by the oil filter 12, it flows back from the lubricating oil tank 11 to the oil collection tank 8. The oil is evenly dripped onto the transmission component 3 by the oil equalization hole 9, ensuring that all moving parts inside the transmission receive continuous and sufficient lubrication, thereby significantly reducing wear between parts and extending the service life of the transmission.

[0022] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A transmission with an oil return structure, comprising a housing (1), wherein a working chamber (2) is provided inside the housing (1), and a transmission assembly (3) is installed in the working chamber (2), characterized in that: An oil collection pipe (4) is installed at the bottom of the working chamber (2). An oil pipe connector (5) is installed on the bottom side wall of the outer shell (1). The oil pipe connector (5) is connected to the oil collection pipe (4). A top cover (6) is fixedly installed on the top of the outer shell (1). An oil inlet (7) is provided on the top wall of the top cover (6). An oil pump assembly is provided between the oil inlet (7) and the oil pipe connector (5). An oil collection tank (8) is fixedly installed on the bottom wall of the top cover (6). Several sets of oil equalization holes (9) are evenly opened on the bottom wall of the oil collection tank (8).

2. A transmission with an oil return structure according to claim 1, characterized in that, The oil pump assembly includes a hydraulic pump (10), a lubricating oil tank (11), and an oil filter (12). The input end of the hydraulic pump (10) is connected to the lubricating oil tank (11), the output end of the hydraulic pump (10) is connected to the oil inlet (7), the oil pipe joint (5) is connected to the oil filter (12), and the oil filter (12) is connected to the lubricating oil tank (11).

3. A transmission with an oil return structure according to claim 2, characterized in that, A check valve (13) is connected between the oil pipe joint (5) and the oil filter (12).

4. A transmission with an oil return structure according to claim 1, characterized in that, The bottom wall of the working chamber (2) is a "V" shaped surface structure with a central depression. An oil collection groove (14) is provided in the middle of the bottom wall of the working chamber (2). The oil collection groove (14) extends to both ends of the working chamber (2). The oil collection pipe (4) is installed in the oil collection groove (14). Several sets of fixing brackets (15) are fixedly installed on the outer wall of the oil collection pipe (4). The fixing brackets (15) are fixedly installed on the bottom wall of the working chamber (2). Oil inlet holes (16) are evenly distributed on the side wall of the oil collection pipe (4).

5. A transmission with an oil return structure according to claim 4, characterized in that, The bottom sidewall of the outer casing (1) is provided with a threaded hole (17), the position of the threaded hole (17) corresponds to that of the oil collecting pipe (4), the outer wall of the oil pipe joint (5) is provided with a first threaded part (18), the oil pipe joint (5) is fitted and installed in the threaded hole (17), the bottom end of the threaded hole (17) is provided with a first sealing cone surface (19), the end of the oil pipe joint (5) is provided with a second sealing cone surface (20) that matches the first sealing cone surface (19), the end of the oil pipe joint (5) away from the first threaded part (18) is provided with a first connector (21), the outer wall of the first connector (21) is provided with a second threaded part (22).

6. A transmission with an oil return structure according to claim 5, characterized in that, The first sealing cone surface (19) has a through hole (23) at its center, which is connected to the oil collection groove (14). The oil pipe joint (5) has a second connector (24) at one end away from the first connector (21), which extends into the oil collection groove (14). The oil collection pipe (4) has a connecting hole (25) at one end near the threaded hole (17). A sealing ring (26) is fitted on the inner wall of the connecting hole (25). The second connector (24) is fitted into the connecting hole (25). The oil pipe joint (5) has an oil delivery hole (27) through it at its axial center.

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