Lubricating and cooling mechanism for driving assembly of new energy automobile

Abstract

The invention belongs to the technical field of new energy automobiles, and discloses a new energy automobile driving assembly lubricating and cooling mechanism which comprises a driving assembly shell and further comprises a driving motor, the driving motor is arranged at one end of an inner cavity of the driving assembly shell, and a motor rotor is arranged at the inner end of the driving motor; according to the technical scheme, the ejection assembly, the fixing assembly and the linkage assembly are arranged, and the ends of the linkage assembly are driven to be opposite, so that internal hydraulic oil is pushed to be guided into the inner end of the inner cavity of the fixing assembly, and the output end of the fixing assembly is pushed to retract into the inner cavity; the inner end of the fixing assembly is separated from the interior of the top end of the filter plate, the clamping and fixing effect on the filter plate is relieved, at the moment, the ejection assembly is released, the whole filter plate is pushed to eject upwards, finally, the filter plate can be smoothly taken out for cleaning, operation is convenient and rapid, and the labor intensity of operators is greatly relieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicles, and specifically relates to a lubrication and cooling mechanism for a new energy vehicle drive assembly. Background Art

[0002] The lubrication and cooling mechanism of the new energy vehicle drive assembly is a core component to ensure the efficient and reliable operation of the system. Its design needs to take into account the dual requirements of lubrication and cooling and adapt to the complex working conditions of the dual-motor architecture. Generally, it means filling the inside of the reduction gear of the drive assembly with cold lubricating oil, filtering it into the drive assembly through the end of the motor rotor, and then flowing back to the reduction gear through the bottom valve to achieve lubrication while circulating water cooling.

[0003] When the existing lubrication and cooling part lubricates the reduction gear part, it will take away some impurities generated during rotation. The filtering device of the rotor part can filter and block them. However, since the filter screen will be blocked during the first use of the filtering device, it is necessary to remove the entire drive assembly for cleaning. The operation is cumbersome and complex, which greatly increases the labor intensity of the operator. Therefore, it needs to be improved. Summary of the Invention

[0004] To solve the problems raised in the above background art, the present invention provides a lubrication and cooling mechanism for a new energy vehicle drive assembly, which has the advantage of being convenient for disassembling and cleaning the filter screen.

[0005] To achieve the above object, the present invention provides the following technical solution: A lubrication and cooling mechanism for a new energy vehicle drive assembly, including a drive assembly housing, further including: a drive motor, the drive motor is arranged at one end of the inner cavity of the drive assembly housing, and a motor rotor is arranged at the inner end of the drive motor; a reduction mechanism, the motor rotor is arranged inside the other end of the drive motor; a filtering component, the filtering component is movably sleeved at the end of the motor rotor; a jacking component, the jacking component is arranged at the middle of the bottom end of the filtering component; a fixing component, the fixing component is arranged on both sides of the top end of the filtering component, and the fixing component is communicated with a linkage component arranged below the fixing component; wherein, the fixing component includes a first hydraulic cylinder arranged inside the drive assembly housing and located outside the top of the filtering component, a first hydraulic rod is movably installed inside the first hydraulic cylinder, a clamping block is arranged at the inner end of the first hydraulic rod, and the clamping block is elastically connected with the inside of the drive assembly housing through a second elastic member.

[0006] Preferably, the filtering component includes a connecting pipe, a limiting ring, a sealing ring and a filter plate;

[0007] The connecting pipe is movably installed inside the driving assembly housing and is in contact with the end of the motor rotor. The limiting ring is arranged at the end of the connecting pipe and is arranged inside the motor rotor. The sealing ring is arranged at the end of the connecting pipe. The filter plate is movably installed in the middle of the connecting pipe.

[0008] Preferably, the ejecting assembly includes a top plate, a telescopic rod and a first elastic member.

[0009] The top plate is movably installed at the bottom of the filter plate. The telescopic rod is arranged at the bottom end of the top plate, and the bottom end of the telescopic rod is fixedly connected to the inner wall of the connecting pipe. The top plate is elastically connected to the inner wall of the connecting pipe through the first elastic member.

[0010] Preferably, the surface of the telescopic rod is slidably connected to the inner wall of the first elastic member.

[0011] Preferably, the linkage assembly includes a second hydraulic cylinder, a second hydraulic piston rod, a linkage block and an oil passage groove.

[0012] The second hydraulic cylinder is fixedly installed inside the motor rotor and is located directly below the first hydraulic cylinder. The second hydraulic piston rod is movably installed in the inner cavity of the second hydraulic cylinder. The linkage block is arranged at the inner end of the second hydraulic piston rod. The second hydraulic cylinder is communicated with the first hydraulic cylinder through the oil passage groove.

[0013] Preferably, the inner end of the linkage block is designed in an inclined plane shape.

[0014] Preferably, shielding mechanisms are arranged on both sides of the filter plate inside the motor rotor. The shielding mechanisms include shielding plates, connecting frames and sliding strips.

[0015] The shielding plates are movably installed inside the motor rotor and are located above the outer side of the filter plate. The connecting frames are arranged at the outer ends of the shielding plates. The sliding strips are arranged at the inner ends of one side of the connecting frames.

[0016] Preferably, a check valve is arranged at the bottom end of the driving assembly housing between the bottom ends of the driving motor and the reduction mechanism.

[0017] Preferably, a driving assembly is arranged inside the motor rotor at the inner ends of the sliding strips. The driving assembly includes a power motor group, a movable block and a linkage arm.

[0018] The power motor group is arranged inside the motor rotor and is located in the middle of the inner side of the sliding strip. The movable block is threadedly sleeved on the output end of the power motor group. The linkage arm is hinged between the movable block and the sliding strip.

[0019] Preferably, the surface of the movable block is completely fitted with the inner wall of the motor rotor.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] Through the above technical solution, by setting the ejection component, the fixing component and the linkage component, the ends of the linkage component are driven to move away from each other, so that the hydraulic oil inside is pushed into the inner end of the inner cavity of the fixing component, causing the output end of the fixing component to be pushed and retracted into the inner cavity, and further causing the inner end of the fixing component to disengage from the inside of the top of the filter plate, releasing the clamping and fixing effect on the filter plate. At this time, the ejection component will be released, thus pushing the whole filter plate to pop up partially upward, and finally the filter plate can be taken out smoothly for cleaning. The operation is convenient and fast, greatly reducing the labor intensity of the operator.

[0022] The present invention sets up a shielding mechanism and a driving component. By driving the driving component to operate, the output end of the driving component can drive the shielding mechanism to move towards each other, and then the inner ends of the shielding mechanism are completely fitted to each other, so as to shield and seal both sides of the filter plate, thereby avoiding the lubricating oil flowing in the connecting pipe and affecting the subsequent disassembly of the filter plate. At the same time, when the inner ends of the shielding mechanism are completely fitted, the inner ends of the linkage component will be smoothly pushed away from each other, so as to release the fixing effect on the filter plate subsequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is a partial sectional structural diagram of the motor rotor of the present invention;

[0025] Figure 3 is Figure 2 a partial enlarged structural diagram at A in

[0026] Figure 4 is Figure 2 a partial enlarged structural diagram at B in

[0027] Figure 5 is a sectional structural diagram of the filter plate of the present invention;

[0028] Figure 6 is Figure 5 a partial enlarged structural diagram at C in

[0029] Figure 7 is a sectional structural diagram of the shielding mechanism of the present invention;

[0030] Figure 8 is a sectional structural diagram of the power motor group of the present invention.

[0031] In the figure: 1. Driving assembly housing; 2. Driving motor; 3. Motor rotor; 4. Reduction mechanism; 5. Filter assembly; 501. Connecting pipe; 502. Limiting ring; 503. Sealing ring; 504. Filter plate; 6. Ejecting assembly; 601. Top plate; 602. Telescopic rod; 603. First elastic member; 7. Fixing assembly; 701. First hydraulic cylinder; 702. First hydraulic rod; 703. Clamping block; 704. Second elastic member; 8. Linkage assembly; 801. Second hydraulic cylinder; 802. Second hydraulic piston rod; 803. Linkage block; 804. Oil passage; 9. Shielding mechanism; 901. Shielding plate; 902. Connecting frame; 903. Sliding bar; 10. Check valve; 11. Driving assembly; 1101. Power motor group; 1102. Movable block; 1103. Linkage arm. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figures 1 to 8 shown, the present invention provides a lubricating and cooling mechanism for a driving assembly of a new energy vehicle, including a driving assembly housing 1, and further including: a driving motor 2, the driving motor 2 is arranged at one end of the inner cavity of the driving assembly housing 1, and a motor rotor 3 is arranged at the inner end of the driving motor 2; a reduction mechanism 4, the motor rotor 3 is arranged inside the other end of the driving motor 2; a filter assembly 5, the filter assembly 5 is movably sleeved on the end of the motor rotor 3; an ejecting assembly 6, the ejecting assembly 6 is arranged at the middle of the bottom end of the filter assembly 5; a fixing assembly 7, the fixing assembly 7 is arranged on both sides of the top end of the filter assembly 5, and the fixing assembly 7 is communicated with a linkage assembly 8 arranged below the fixing assembly 7; wherein, the fixing assembly 7 includes a first hydraulic cylinder 701 arranged inside the driving assembly housing 1 and located outside the top of the filter assembly 5, a first hydraulic rod 702 is movably installed inside the first hydraulic cylinder 701, a clamping block 703 is arranged at the inner end of the first hydraulic rod 702, and the clamping block 703 is elastically connected with the inside of the driving assembly housing 1 through a second elastic member 704.

[0034] By retracting the end of the linkage assembly 8 into the inner cavity of the linkage assembly 8, the hydraulic oil inside the linkage assembly 8 can be introduced into the first hydraulic cylinder 701, thereby pushing the first hydraulic rod 702 and the clamping block 703 away from each other, so that the inner end of the clamping block 703 releases the clamping and fixing effect on the middle filtering part of the filter assembly 5, and then the filtering part can be pushed out by releasing the ejecting assembly 6.

[0035] As Figure 4and Figure 7 As shown in Figure 7 , the filtering component 5 includes a connecting pipe 501, a limiting ring 502, a sealing ring 503 and a filter plate 504;

[0036] The connecting pipe 501 is movably installed inside the driving assembly housing 1 and fits against the end of the motor rotor 3. The limiting ring 502 is arranged at the end of the connecting pipe 501 and is arranged inside the motor rotor 3. The sealing ring 503 is arranged at the end of the connecting pipe 501, and the filter plate 504 is movably installed in the middle of the connecting pipe 501.

[0037] With the above scheme: By providing the limiting ring 502 and the sealing ring 503, the end of the connecting pipe 501 and the motor rotor 3 can be movably sleeved through the design of the limiting ring 502, and the sealing ring 503 keeps the connection sealed.

[0038] As Figure 6 shown in Figure 6 , the ejecting component 6 includes a top plate 601, a telescopic rod 602 and a first elastic member 603;

[0039] The top plate 601 is movably installed at the bottom of the filter plate 504. The telescopic rod 602 is arranged at the bottom end of the top plate 601, and the bottom end of the telescopic rod 602 is fixedly connected to the inner wall of the connecting pipe 501. The top plate 601 is elastically connected to the inner wall of the connecting pipe 501 through the first elastic member 603.

[0040] With the above scheme: By providing the first elastic member 603, when the elastic force of the first elastic member 603 is released, it will smoothly push the top plate 601 to drive the whole filter plate 504 to extend upward.

[0041] As Figure 6 shown in Figure 6 , the surface of the telescopic rod 602 is slidably connected to the inner wall of the first elastic member 603.

[0042] With the above scheme: When the first elastic member 603 releases its telescopic movement, it will smoothly expand and contract under the sliding limiting effect along the surface of the telescopic rod 602.

[0043] As Figure 3 shown in Figure 3 , the linkage component 8 includes a second hydraulic cylinder 801, a second hydraulic piston rod 802, a linkage block 803 and an oil passage 804;

[0044] The second hydraulic cylinder 801 is fixedly installed inside the motor rotor 3, and the second hydraulic cylinder 801 is located directly below the first hydraulic cylinder 701. The second hydraulic piston rod 802 is movably installed in the inner cavity of the second hydraulic cylinder 801. The linkage block 803 is arranged at the inner end of the second hydraulic piston rod 802. The second hydraulic cylinder 801 is communicated with the first hydraulic cylinder 701 through the oil passage 804.

[0045] Adopt the above solution: By providing an oil passage groove 804, when the second hydraulic piston rod 802 moves away from each other, it will push the hydraulic oil at the outer end of the inner cavity of the second hydraulic cylinder 801 into the inner end of the inner cavity of the first hydraulic cylinder 701 smoothly through the oil passage groove 804, so as to push the first hydraulic rod 702 and the clamping block 703 to move away from each other.

[0046] As Figure 3 shown, the inner end of the linkage block 803 is designed with an inclined surface.

[0047] Adopt the above solution: Through the inclined surface design of the inner end of the linkage block 803, it can move away from each other smoothly when being squeezed.

[0048] As Figure 7 and Figure 8 shown, a shielding mechanism 9 is arranged on both sides of the filter plate 504 inside the motor rotor 3. The shielding mechanism 9 includes a shielding plate 901, a connecting frame 902 and a sliding bar 903;

[0049] The shielding plate 901 is movably installed inside the motor rotor 3, and the shielding plate 901 is located above the outer side of the filter plate 504. The connecting frame 902 is arranged at the outer end of the shielding plate 901, and the sliding bar 903 is arranged at the inner end of one side of the connecting frame 902.

[0050] Adopt the above solution: By providing a shielding plate 901, when the shielding plates 901 are completely fitted to each other, the bottom end of the filter plate 504 can be shielded and sealed.

[0051] As Figure 2 shown, a check valve 10 is arranged at the bottom end of the driving assembly housing 1 between the bottom ends of the driving motor 2 and the reduction mechanism 4.

[0052] Adopt the above solution: Through the design of the check valve 10, the lubricating oil in the inner cavity of the driving assembly housing 1 located in the part of the driving motor 2 can only flow back unidirectionally from the bottom to the inner cavity of the driving assembly housing 1 where the reduction mechanism 4 is located through the check valve 10.

[0053] As Figures 6 to 8 shown, a driving component 11 is arranged inside the motor rotor 3 at the inner end of the sliding bar 903. The driving component 11 includes a power motor group 1101, a movable block 1102 and a linkage arm 1103;

[0054] The power motor group 1101 is arranged inside the motor rotor 3, and the power motor group 1101 is located in the middle of the inner side of the sliding bar 903. The movable block 1102 is threadedly sleeved on the output end of the power motor group 1101, and the linkage arm 1103 is hinged between the movable block 1102 and the sliding bar 903.

[0055] Adopting the above solution: By providing the linkage arm 1103, when the power motor set 1101 operates to drive the movable block 1102 to move, the linkage arm 1103 will deflect to drive the sliding bar 903, the connecting frame 902 and the baffle 901 to move towards each other.

[0056] As Figures 6 to 8 shown, the surface of the movable block 1102 is completely fitted with the inner wall of the motor rotor 3.

[0057] Adopting the above solution: Due to the complete fitting relationship between the surface of the movable block 1102 and the inner wall of the motor rotor 3, the movement of the movable block 1102 can be limited.

[0058] The working principle and usage process of the present invention:

[0059] First, when the inside of the filter plate 504 is blocked by impurities, affecting the circulation of the lubricating oil, the power motor set 1101 can be started so that the output end of the power motor set 1101 drives the movable block 1102 to move, causing the linkage arm 1103 to deflect and pull the entire assembly of the two sliding bars 903, the connecting frame 902 and the baffle 901 to move towards each other until the baffle 901 is completely fitted together. At this time, the two sides at the bottom of the filter plate 504 can be blocked and sealed, causing the lubricating oil to stop circulating inside the drive assembly housing 1 and the entire operation of the drive assembly housing 1 can be stopped.

[0060] Then, due to the complete fitting of the baffle 901, the outer end of the connecting frame 902 will squeeze the inclined surface of the linkage block 803, causing the linkage block 803 to move away from each other, driving the second hydraulic piston rod 802 to retract into the second hydraulic cylinder 801. Furthermore, the hydraulic oil at the outer end of the inner cavity of the second hydraulic cylinder 801 is introduced into the inner end of the inner cavity of the first hydraulic cylinder 701 through the oil passage 804 to push the first hydraulic rod 702 and the clamping block 703 to move away from each other until the inner end of the clamping block 703 disengages from the top inside of the filter plate 504, releasing the clamping and fixing effect on the entire filter plate 504. Finally, the first elastic member 603 will push the top plate 601 to push the protruding part at the top of the filter plate 504 upward, and then the filter plate 504 can be smoothly pulled out for cleaning.

[0061] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lubrication and cooling mechanism for a new energy vehicle drive assembly, comprising a drive assembly housing (1), characterized in that: Further included are: A drive motor (2), the drive motor (2) is arranged at one end of the inner cavity of the drive assembly housing (1), and a motor rotor (3) is arranged at the inner end of the drive motor (2); A reduction mechanism (4), the motor rotor (3) is arranged inside the other end of the drive motor (2); A filter assembly (5), the filter assembly (5) is movably sleeved on the end of the motor rotor (3); An ejection assembly (6), the ejection assembly (6) is arranged in the middle of the bottom end of the filter assembly (5); A fixing assembly (7), the fixing assembly (7) is arranged on both sides of the top end of the filter assembly (5), and the fixing assembly (7) is communicated with a linkage assembly (8) arranged below the fixing assembly (7); Among them, the fixing assembly (7) includes a first hydraulic cylinder (701) arranged inside the drive assembly housing (1) and outside the top of the filter assembly (5), a first hydraulic rod (702) is movably installed inside the first hydraulic cylinder (701), a clamping block (703) is arranged at the inner end of the first hydraulic rod (702), and the clamping block (703) is elastically connected with the inside of the drive assembly housing (1) through a second elastic member (704).

2. The lubrication and cooling mechanism of the new energy vehicle drive assembly according to claim 1, characterized in that: The filter assembly (5) includes a connecting pipe (501), a limiting ring (502), a sealing ring (503) and a filter plate (504); The connecting pipe (501) is movably installed inside the drive assembly housing (1) and is attached to the end of the motor rotor (3), the limiting ring (502) is arranged at the end of the connecting pipe (501), and the limiting ring (502) is arranged inside the motor rotor (3), the sealing ring (503) is arranged at the end of the connecting pipe (501), and the filter plate (504) is movably installed in the middle of the connecting pipe (501).

3. The lubrication and cooling mechanism for the drive assembly of a new energy vehicle according to claim 1, characterized in that: The ejection assembly (6) includes a top plate (601), a telescopic rod (602) and a first elastic member (603); The top plate (601) is movably installed at the bottom of the filter plate (504), the telescopic rod (602) is arranged at the bottom end of the top plate (601), and the bottom end of the telescopic rod (602) is fixedly connected with the inner wall of the connecting pipe (501), and the top plate (601) is elastically connected with the inner wall of the connecting pipe (501) through a first elastic member (603).

4. The lubrication and cooling mechanism for the drive assembly of a new energy vehicle according to claim 3, characterized in that: The surface of the telescopic rod (602) is slidably connected with the inner wall of the first elastic member (603).

5. The lubrication and cooling mechanism for the drive assembly of a new energy vehicle according to claim 1, characterized in that: The linkage assembly (8) includes a second hydraulic cylinder (801), a second hydraulic piston rod (802), a linkage block (803) and an oil through groove (804); The second hydraulic cylinder (801) is fixedly installed inside the motor rotor (3), and the second hydraulic cylinder (801) is located directly below the first hydraulic cylinder (701), the second hydraulic piston rod (802) is movably installed in the inner cavity of the second hydraulic cylinder (801), the linkage block (803) is arranged at the inner end of the second hydraulic piston rod (802), and the second hydraulic cylinder (801) is communicated with the first hydraulic cylinder (701) through the oil through groove (804).

6. The lubrication and cooling mechanism for the drive assembly of a new energy vehicle according to claim 5, characterized in that: The inner end of the linkage block (803) is designed in a bevel shape.

7. The lubrication and cooling mechanism for the drive assembly of a new energy vehicle according to claim 1, wherein: The inside of the motor rotor (3) is provided with shielding mechanisms (9) on both sides of the filter plate (504). The shielding mechanisms (9) include shielding plates (901), connecting frames (902), and sliding strips (903). The shielding plates (901) are movably installed inside the motor rotor (3), and the shielding plates (901) are located above the outer side of the filter plate (504). The connecting frames (902) are arranged at the outer ends of the shielding plates (901), and the sliding strips (903) are arranged at the inner ends of one side of the connecting frames (902).

8. The lubrication and cooling mechanism for the drive assembly of a new energy vehicle according to claim 1, wherein: A check valve (10) is provided at the bottom end of the drive assembly housing (1) between the bottom ends of the drive motor (2) and the reduction mechanism (4).

9. The lubrication and cooling mechanism for the drive assembly of a new energy vehicle according to claim 1, characterized in that: A drive component (11) is provided inside the motor rotor (3) at the inner ends of the sliding strips (903). The drive component (11) includes a power motor group (1101), a movable block (1102), and a linkage arm (1103). The power motor group (1101) is provided inside the motor rotor (3), and the power motor group (1101) is located in the middle of the inner side of the sliding strips (903). The movable block (1102) is threadedly sleeved on the output end of the power motor group (1101), and the linkage arm (1103) is hinged between the movable block (1102) and the sliding strips (903).

10. The lubrication and cooling mechanism for the drive assembly of a new energy vehicle according to claim 9, characterized in that: The surface of the movable block (1102) is completely attached to the inner wall of the motor rotor (3).

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