New energy reducer lubrication system with oil pump auxiliary lubrication

Abstract

The application discloses a new energy reducer lubricating system with mechanical oil pump auxiliary lubrication, which comprises a first box body and a second box body, the first box body is buckled with the second box body, the driving mechanism comprises a differential, a driving gear, an oil pump, a connecting block, a driving rod, a first meshing gear, and a second meshing gear, the differential is installed in the first box body, the driving gear is installed on the differential, the oil pump is fixed in the first box body and located below the differential, the connecting block is fixed at one end of the oil pump, the driving rod is connected with the connecting block, the first meshing gear is rotatably installed on the driving rod, the second meshing gear is rotatably arranged between the oil pump and an oil conveying mechanism, and the second meshing gear is matched with the first meshing gear and the oil conveying mechanism at the same time, and the first meshing gear is matched with the driving gear. The application can fully lubricate the internal parts of the reducer, and avoids the problem of insufficient lubrication of the reducer of the new energy automobile.

Description

Technical Field

[0001] This invention relates to the field of lubrication technology for speed reducers, and specifically to a lubrication system for a new energy speed reducer with oil pump-assisted lubrication. Background Technology

[0002] A lubrication system, also known as a centralized lubrication system, is a system that supplies lubricating oil to a device to achieve the purpose of lubrication. Lubrication systems are classified into oil lubrication systems and grease lubrication systems.

[0003] Compared to gasoline vehicles, new energy vehicles mainly use oil-based lubrication systems. However, traditional oil-based lubrication systems cannot fully meet the lubrication needs of new energy vehicles. New energy vehicles have high input speeds and high internal temperatures, which leads to insufficient lubrication of the reducer. In addition, in the past, if fixed-point pipeline oil delivery was used, the pipelines needed to be regularly maintained to prevent the accumulation of oil sludge inside the oil delivery pipes, which would reduce the efficiency of lubrication delivery. Summary of the Invention

[0004] The purpose of this invention is to provide a lubrication system for new energy vehicle reducers with oil pump-assisted lubrication. This invention can ensure that the internal components of the reducer are adequately lubricated, thus avoiding the problem of insufficient lubrication in the reducers of new energy vehicles.

[0005] The technical solutions to the above technical problems are as follows:

[0006] A lubrication system for a new energy reducer with mechanical oil pump-assisted lubrication includes a first housing and a second housing, which are fastened together. The first housing has an oil collection groove inside. It also includes a drive mechanism and an oil delivery mechanism. The drive mechanism cooperates with the oil delivery mechanism to deliver lubricating oil to the oil collection groove. The drive mechanism includes a differential, a drive gear, an oil pump, a connecting block, a drive rod, a first meshing gear, and a second meshing gear. The differential is installed inside the first housing, and the drive gear is installed on the differential. The oil pump is fixed inside the first housing and located below the differential. The connecting block is fixed to one end of the oil pump. The drive rod is connected to the connecting block. The first meshing gear is rotatably mounted on the drive rod. The second meshing gear is rotatably arranged between the oil pump and the oil delivery mechanism, and simultaneously cooperates with the first meshing gear and the oil delivery mechanism. The first meshing gear cooperates with the drive gear.

[0007] Furthermore, the oil delivery mechanism includes a cooling fan, an oil suction filter, and an oil pipe. The cooling fan is engaged with a second meshing gear, and the oil suction filter is installed on one side of the oil pump. The cooling fan is connected to the oil pump, and one end of the oil suction filter is connected to the oil pump, while the other end is connected to the oil pipe.

[0008] Further, the oil pipe includes a first straight oil pipe, an intermediate bent oil pipe, and a second straight oil pipe, one end of the first straight oil pipe is connected to the oil suction filter, the other end is connected to the intermediate bent oil pipe, one end of the second straight oil pipe is connected to the other end of the intermediate bent oil pipe, and the other end is aligned with the oil accumulation groove.

[0009] Further, buffer descaling devices are provided at the connection positions between the first straight oil pipe and the intermediate bent oil pipe, and between the intermediate bent oil pipe and the second straight oil pipe.

[0010] Further, the buffer descaling device includes an oil flushing plate, an elastic pull rope, and an oil storage threaded pipe, the end face of the oil flushing plate is provided with an oil flushing filter port, the circumferential surface is symmetrically provided with limiting grooves, the axial end inside the oil pipe is provided with an inner pipe limiting block, and notch limiting blocks are symmetrically arranged along the inner axial direction of the oil pipe, the radial end of the oil pipe is provided with an oil discharge through hole, the oil storage threaded pipe is in threaded connection with the oil discharge through hole, one end of the elastic pull rope is fixed on the inner wall of the oil pipe, the other end is connected with the end face of the oil flushing plate, and the limiting groove of the oil flushing plate is in sliding fit with the notch limiting block in the oil pipe.

[0011] In the lubrication system for a new energy reducer with mechanical oil pump assistance provided by the present invention, firstly, a single differential drives the drive mechanism to rotate, then the drive mechanism cooperates with the oil delivery mechanism to realize the driving and addition of lubricating oil, and the oil delivery mechanism cooperates with the oil accumulation groove, thereby realizing the directional oil guiding function of the lubricating oil, so as to solve the problem of insufficient lubrication of the reducer of new energy vehicles in the prior art. Brief Description of the Drawings

[0012] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 is a schematic diagram of the internal structure of the present invention;

[0014] Figure 3 is a schematic structural diagram of the drive mechanism and the oil delivery mechanism of the present invention;

[0015] Figure 4 is a schematic structural diagram of the mechanical oil pump of the present invention;

[0016] Figure 5 is a schematic structural diagram of the cooling extractor of the present invention;

[0017] Figure 6 is a schematic structural diagram of the oil inlet end of the oil pipe of the present invention;

[0018] Figure 7 is a schematic structural diagram of the oil outlet end of the oil pipe of the present invention;

[0019] Figure 8 is a schematic structural diagram of the oil flushing plate of the present invention.

[0020] Labels in the attached diagram:

[0021] First housing 1, differential 2, oil flush plate 3, fastening block 4, second housing 12, oil trough 13, drive gear 21, oil pump 22, connecting block 23, drive rod 24, first meshing gear 25, second meshing gear 26, vacuum cooler 27, oil suction filter 28, oil pipe 29, first straight oil pipe 29-1, intermediate bend oil pipe 29-2, second straight oil pipe 29-3, oil flush filter port 31, elastic pull rope 32, limiting groove 33, lower oil through hole 34, oil storage threaded pipe 35, groove limiting block 36, inner pipe limiting block 37. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 4 As shown, a lubrication system for a new energy reducer with mechanical oil pump-assisted lubrication includes a first housing 1 and a second housing 12, which are fastened together. The first housing 1 has an oil collection groove 13 inside. It also includes a drive mechanism and an oil delivery mechanism. The drive mechanism cooperates with the oil delivery mechanism to deliver lubricating oil to the oil collection groove 13. The drive mechanism includes a differential 2, a drive gear 21, an oil pump 22, a connecting block 23, a drive rod 24, a first meshing gear 25, and a second meshing gear 26. The differential 2 is mounted on... Inside the first housing 1, the drive gear 21 is mounted on the differential 2. The oil pump 22 is fixed inside the first housing 1 and located below the differential 2. The connecting block 23 is fixed to one end of the oil pump 22. The drive rod 24 is connected to the connecting block 23. The first meshing gear 25 is rotatably mounted on the drive rod 24. The second meshing gear 26 is rotatably arranged between the oil pump 22 and the oil delivery mechanism. The second meshing gear 22 simultaneously engages with the first meshing gear and the oil delivery mechanism. The first meshing gear 25 engages with the drive gear 21.

[0024] In this embodiment, the first housing 1 and the second housing 12 are fastened together by bolts after being fastened together by their own structure. The side wall of the oil collection groove 13 is set with a V-shaped structure. When the drive end of the reducer rotates, the differential 2 drives the drive gear 21 to rotate at the same time. The drive gear 21 drives the first meshing gear 25 to rotate at the same time. The first meshing gear 25 drives the second meshing gear 26 to rotate at the same time. The second meshing gear 26 drives the mechanical oil pump 22 to pump and pressurize the lubricating oil. Then the lubricating oil is transported to the V-shaped oil collection groove 13 through the oil delivery mechanism. Since there is an oil seepage groove (not shown in the figure) at the corner of the V-shaped oil collection groove 13 in this embodiment, the lubricating oil flows into the left bearing of the input shaft, the right bearing of the input shaft, the left bearing of the intermediate shaft, the right bearing of the intermediate shaft, and the left bearing of the differential through the oil seepage groove to lubricate the left bearing of the input shaft, the right bearing of the input shaft, the left bearing of the intermediate shaft, the right bearing of the intermediate shaft, and the left bearing of the differential. Thus, the rotation of the reducer reduces energy consumption while achieving lubrication of the reducer's internal parts.

[0025] like Figures 2 to 5 As shown, the oil delivery mechanism includes a cooling fan 27, an oil suction filter 28, and an oil pipe 29. The cooling fan 27 is engaged with the second meshing gear 26. The oil suction filter 28 is installed on one side of the oil pump 22. The cooling fan 27 is connected to the oil pump 22. One end of the oil suction filter 28 is connected to the oil pump 22, and the other end is connected to the oil pipe 29.

[0026] In this embodiment, when the second meshing gear 26 drives the mechanical oil pump 22 to pump and pressurize the lubricating oil, the oil suction filter 28 first draws the lubricating oil into the cooling machine 27 for cooling, and then the lubricating oil flows into the oil pipe 29 through the oil pump 22, and finally flows out from the port of the oil pipe 29 aligned with the oil collection tank 13, thereby flowing into the V-shaped oil collection tank 13.

[0027] like Figure 3 As shown, the oil pipe 29 includes a first straight oil pipe 29-1, an intermediate bend oil pipe 29-2, and a second straight oil pipe 29-3. One end of the first straight oil pipe 29-1 is connected to the oil suction filter 28, and the other end is connected to the intermediate bend oil pipe 29-2. One end of the second straight oil pipe 29-3 is connected to the other end of the intermediate bend oil pipe 29-2, and the other end is aligned with the oil accumulation tank 13.

[0028] In this embodiment, after the lubricating oil flows out of the oil suction filter 28, it first flows into the first straight oil pipe 29-1, then into the intermediate bend oil pipe 29-2, then into the second straight oil pipe 29-3, and finally into the V-shaped oil accumulation groove 13. In this embodiment, fastening blocks 4 are provided at the connection points of the first straight oil pipe 29-1, the second straight oil pipe 29-3 and the intermediate bend oil pipe 29-2. The fastening blocks 4 can not only strengthen the connection strength between the intermediate bend oil pipe 29-2 and the first straight oil pipe 29-1 and the second straight oil pipe 29-3, but also fix the entire oil pipe 29 inside the first housing 1, thereby preventing the oil pipe 29 from shaking.

[0029] like Figures 6 to 8 As shown, the buffer descaling device includes an oil flushing plate 3, an elastic pull rope 32, and an oil storage threaded pipe 35. The oil flushing plate 3 has an oil flushing filter port 31 on its end face and a limiting groove 33 symmetrically arranged on its circumferential surface. The axial end of the oil pipe 29 is provided with an inner pipe limiting block 37 and a slot limiting block 36 symmetrically arranged along the axial direction of the oil pipe 29. The radial end of the oil pipe 29 is provided with a lower oil passage hole 34. The oil storage threaded pipe 35 is threadedly connected to the lower oil passage hole 34. One end of the elastic pull rope 32 is fixed to the inner wall of the oil pipe 29, and the other end is connected to the end face of the oil flushing plate 3. The limiting groove 33 of the oil flushing plate 3 and the slot limiting block 36 inside the oil pipe 29 are in sliding fit.

[0030] like Figures 1 to 8As shown, in this embodiment, buffer descaling devices are provided inside the first straight oil pipe 29-1, the intermediate bend oil pipe 29-2, and the second straight oil pipe 29-3. When lubricating oil enters the first straight oil pipe 29-1 from the oil suction filter 28, then enters the intermediate bend oil pipe 29-2 from the first straight oil pipe 29-1, and finally flows into the second straight oil pipe 29-3 from the intermediate bend oil pipe 29-2, the flow rate at the inlet is greater than the oil output of the oil flushing port 31 of the oil flushing plate 3. Therefore, the pressure of the lubricating oil pushes the oil flushing plate 3 to move forward along the groove limit block 36 inside the oil pipe 29. At this time, a portion of the lubricating oil will enter the next pipeline from the oil flushing port 31. When the reducer stops running, the mechanism oil pump 22 also stops running. At this time, no lubricating oil passes through the oil pipe 29, and there is no pressure in the oil pipe 29. At this time, the first straight oil pipe 29-1, the intermediate bend oil pipe 29-2, and the second straight oil pipe 29-3 are all equipped with buffer descaling devices. Under the elastic pull of the elastic rope 32, the oil flushing plate 3 inside the second straight oil pipe 29-3 slides along the groove limiting block 36 to its initial position. During the sliding back process, since the oil flushing plate 3 and the pipe wall of the oil pipe 29 are in clearance fit, the oil flushing plate 3 scrapes off the dirt on the pipe wall of the oil pipe 29 and scrapes it into the oil storage threaded pipe 35. In this embodiment, the oil outlet ends of the first straight oil pipe 29-1, the intermediate bend oil pipe 29-2, and the second straight oil pipe 29-3 are all provided with inner pipe limiting blocks 37. The inner pipe limiting blocks 37 can limit and protect the oil flushing plate 3, preventing the oil flushing plate 3 in the first straight oil pipe 29-1 from entering the intermediate bend oil pipe 29-2, the oil flushing plate 3 in the intermediate bend oil pipe 29-2 from entering the second straight oil pipe 29-3, and the oil flushing plate 3 in the second straight oil pipe 29-3 from being flushed out, thereby realizing the buffering function of the high-speed oil body.

[0031] In this embodiment, during the transportation of lubricating oil, since the cross-sectional area of ​​the oil flushing filter 31 is 0.75 times that of the cross-sectional area of ​​the oil flushing plate 3, it can ensure stable transportation of lubricating oil while still achieving stable pushing of the oil flushing plate 3. Due to the sliding friction between the oil flushing plate 3 and the inside of the oil pipe 29, as well as the elastic tension of the elastic rope 32, and in conjunction with the setting of the middle bend oil pipe 29-2 of the oil pipe 29, the kinetic energy of the lubricating oil is converted into potential energy, thereby realizing the buffering function of the high-speed oil body.

[0032] Finally, it should be noted that the above-described embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit them, much less limit the scope of protection of the present invention; although the invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of protection of the claims.

Claims

1. A lubrication system for a new energy reducer with auxiliary lubrication via a mechanical oil pump, characterized in that, It includes a first housing (1) and a second housing (12), which are fastened together. The first housing (1) is provided with an oil collection groove (13) inside. It also includes a drive mechanism and an oil delivery mechanism. The drive mechanism and the oil delivery mechanism cooperate to deliver lubricating oil into the oil collection groove (13). The side wall of the oil collection groove has a V-shaped structure. An oil seepage groove is provided at the corner of the oil collection groove. The lubricating oil flows through the oil seepage groove to the bearing to be lubricated inside the reducer. The drive mechanism includes a differential (2), a drive gear (21), an oil pump (22), a connecting block (23), a drive rod (24), a first meshing gear (25), and a second meshing gear (26). The differential (2) is installed inside the first housing (1), the drive gear (21) is installed on the differential (2), the oil pump (22) is fixed inside the first housing (1) and located below the differential (2), the connecting block (23) is fixed at one end of the oil pump (22), the drive rod (24) is connected to the connecting block (23), the first meshing gear (25) is rotatably installed on the drive rod (24), the second meshing gear (26) is rotatably arranged between the oil pump (22) and the oil delivery mechanism, and the second meshing gear (26) simultaneously engages with the first meshing gear and the oil delivery mechanism, and the first meshing gear (25) engages with the drive gear (21). The oil conveying mechanism includes an oil pipe (29), and a buffer descaling device is provided inside the oil pipe. The buffer descaling device includes an oil flushing plate (3), an elastic pull rope (32), and an oil storage threaded pipe (35). An oil flushing filter port (31) is provided on the end face of the oil flushing plate (3), and a limiting groove (33) is symmetrically provided on the circumferential surface. An inner tube limiting block (37) is provided at the axial end inside the oil pipe (29), and a slot limiting block (36) is symmetrically provided along the axial direction inside the oil pipe (29). A lower oil passage hole (34) is provided at the radial end of the oil pipe (29). The oil storage threaded pipe (35) is threadedly connected to the lower oil passage hole (34). One end of the elastic pull rope (32) is fixed on the inner wall of the oil pipe (29), and the other end is connected to the end face of the oil flushing plate (3). The limiting groove (33) of the oil flushing plate (3) and the slot limiting block (36) inside the oil pipe (29) slide in cooperation.

2. The lubrication system for a new energy reducer with mechanical oil pump auxiliary lubrication according to claim 1, characterized in that, The oil delivery mechanism also includes a cooling fan (27) and an oil suction filter (28). The cooling fan (27) is engaged with the second meshing gear (26). The oil suction filter (28) is installed on one side of the oil pump (22). The cooling fan (27) is connected to the oil pump (22). One end of the oil suction filter (28) is connected to the oil pump (22), and the other end is connected to the oil pipe (29).

3. The lubrication system for a new energy reducer with mechanical oil pump auxiliary lubrication according to claim 2, characterized in that, The oil pipe (29) includes a first straight oil pipe (29-1), a middle bend oil pipe (29-2), and a second straight oil pipe (29-3). One end of the first straight oil pipe (29-1) is connected to the oil suction filter (28), and the other end is connected to the middle bend oil pipe (29-2). One end of the second straight oil pipe (29-3) is connected to the other end of the middle bend oil pipe (29-2), and the other end is aligned with the oil accumulation tank (13).

4. The lubrication system for a new energy reducer with mechanical oil pump auxiliary lubrication according to claim 3, characterized in that, A buffer descaling device is provided at the connection between the first straight oil pipe (29-1) and the intermediate bend oil pipe (29-2), and at the connection between the intermediate bend oil pipe (29-2) and the second straight oil pipe (29-3).

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