Long-life electric vehicle reducer with ease of maintenance

Abstract

The utility model relates to long -life electric motor car speed reducer convenient to maintain, including casing one, casing one outside installs scrap collecting subassembly, the bucket body of scrap collecting subassembly inserts casing one, and the bucket body side surface is equipped with the lubricating oil impact window, and the lubricating oil impact window is aligned oil port, and the oil port is opposite output gear, and the bucket body middle axle sets up the electromagnetic rod, the utility model discloses through the built -in scrap collecting subassembly in the reduction gearbox, makes the output gear that vehicle travels and rotates constantly draws lubricating oil, and part lubricating oil will rush into the oil port, and from lubricating oil impact window enters the bucket body, and further contacts the electromagnetic rod that the bucket body in electrification and has magnetism, and the trace metal scrap in lubricating oil will be adsorbed on the electromagnetic rod surface, and the lubricating oil that rushes into the bucket body will under the high pressure in the bucket body and run out of the bucket body, and the electromagnetic rod is deenergized after the vehicle stops, and the metal scrap falls down along with gravity, and is adsorbed by the magnet at the bottom of the bucket body, can conveniently maintain the reduction gearbox, can effectively reduce lubricating oil use cost.

Description

Technical Field

[0001] This utility model relates to a speed reducer, specifically a long-life electric vehicle speed reducer that is easy to maintain. Background Technology

[0002] Electric vehicles drive the wheels to rotate through a reducer. After prolonged use, the reducer produces a small amount of metal shavings. These shavings rub against the surfaces of various components of the reducer as the lubricant flows, generating more metal shavings. This affects the lifespan of the lubricant and accelerates the wear and tear of the parts inside the reducer. To ensure the lifespan of the reducer, the lubricant needs to be changed regularly, but this method is costly.

[0003] Currently, the utility model patent with publication number CN218625363U discloses a lubricating oil filtration structure for gearboxes, including a cartridge, a socket at the lower end of the gearbox housing, the cartridge being inserted into the socket, an oil outlet at the bottom of the gearbox housing, the oil outlet communicating with the cartridge, a filter element inside the cartridge, a first filter outlet at the lower end of the cartridge, a dispersion partition between the filter element and the oil outlet, the dispersion partition having multiple through holes, the filter element including a mesh frame, a pleated filter element inside the mesh frame, and the filter element and cartridge being detachable, solving the problem of frequent lubricating oil replacement and low reusability in gear-type gearboxes.

[0004] As can be seen from the above-disclosed technical content, as prior art, the utility model with announcement number CN218625363U filters the deposited lubricating oil by setting a filter structure at the bottom of the box, removes impurities, and facilitates collection and reuse. However, this treatment method has a complex structure, and the reusable lubricating oil is not suitable for being added back into the vehicle gearbox, so it is not suitable for the gearbox of electric vehicles. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model provides an easy-to-maintain, long-life electric vehicle reducer, which can facilitate the maintenance of the gearbox and effectively reduce the cost of lubricating oil.

[0006] To achieve the above objectives, this utility model provides a long-life electric vehicle reducer that is easy to maintain, comprising a housing 1, a housing 2, an output shaft, and a differential. Housing 1 and housing 2 are joined together by screws. A motor shaft gear, an intermediate gear, and an output gear are sequentially arranged in housing 1 and housing 2 via bearings. The output gear is connected to the output shaft on housing 1 and housing 2 via the differential. An oil port is provided on the inner side of housing 1, and a debris collection assembly is installed on the outer side of housing 1. The barrel of the debris collection assembly is inserted into housing 1, and a lubricating oil impact window is provided on the side of the barrel, which is aligned with the oil port. The oil port is directly opposite the output gear. An electromagnetic rod is installed on the central shaft of the barrel, and a control line connection terminal is fixedly connected to the upper end of the electromagnetic rod.

[0007] In addition, the easy-to-maintain, long-life electric vehicle reducer proposed according to the above embodiments of this utility model may also have the following additional technical features:

[0008] As a further improvement of this utility model, the barrel body is a plastic shell.

[0009] As a further improvement of this utility model, a magnet is installed at the bottom of the barrel body via a bracket or groove.

[0010] As a further improvement of this utility model, the barrel body is installed on the outer side of the shell by threads or nuts.

[0011] As a further improvement of this utility model, the control line connection terminal is equipped with a waterproof cover and a rubber sealing ring.

[0012] By means of the above solution, this utility model has at least the following advantages: Compared with conventional gearboxes, by building a debris collection component inside the gearbox, the output gear rotating during vehicle operation continuously moves the lubricating oil, and some of the lubricating oil will rush into the oil inlet and enter the tank through the lubricating oil impact window. It will then come into contact with an energized and magnetic electromagnetic rod in the tank, and the trace metal debris in the lubricating oil will be attracted to the surface of the electromagnetic rod. The lubricating oil that rushes into the tank will be ejected from the tank under the high pressure inside the tank. After the vehicle stops, the electromagnetic rod is de-energized, and the metal debris falls with gravity and is attracted by the magnet at the bottom of the tank. This makes it convenient to maintain the gearbox and can effectively reduce the cost of lubricating oil use. Attached Figure Description

[0013] Figure 1 This is a 3D schematic diagram of a long-life electric vehicle reducer that is easy to maintain;

[0014] Figure 2 This is a structural diagram of a debris collection assembly for a long-life electric vehicle reducer that is easy to maintain.

[0015] Figure 3 This is a side view of a debris collection assembly for a long-life electric vehicle reducer that is easy to maintain;

[0016] Figure 4 This is a structural diagram of a debris collection assembly for a long-life electric vehicle reducer that is easy to maintain.

[0017] In the diagram: 1. Housing 1, 2. Housing 2, 3. Output shaft, 4. Debris collection assembly, 41. Control line connection terminal, 42. Barrel, 43. Lubricating oil impact window, 44. Electromagnetic rod, 45. Magnet, 5. Motor shaft gear, 6. Intermediate gear, 7. Output gear, 8. Oil port, 9. Differential. Detailed Implementation

[0018] The present invention relates to an easy-to-maintain, long-life electric vehicle reducer, described below with reference to the accompanying drawings.

[0019] In Embodiment 1 of this application, as Figures 1 to 4 As shown, this easy-to-maintain long-life electric vehicle reducer (hereinafter referred to as "the present invention") includes a housing 1, a housing 2, an output shaft 3, a debris collection assembly 4, a control line connection terminal 41, a barrel 42, a lubricating oil impact window 43, an electromagnetic rod 44, a motor shaft gear 5, an intermediate gear 6, an output gear 7, an oil port 8, and a differential 9. The housing 1 and housing 2 are connected by screws. The motor shaft gear 5, the intermediate gear 6, and the output gear 7 are sequentially arranged in the housing 1 and housing 2 through bearings. The output gear 7 is connected to the output shaft 3 on the housing 1 and housing 2 through the differential 9. An oil port 8 is opened on the inner side of the housing 1, and the debris collection assembly 4 is installed on the outer side of the housing 1. The barrel 42 of the debris collection assembly 4 is inserted into the housing 1. A lubricating oil impact window 43 is opened on the side of the barrel 42, which is aligned with the oil port 8. The oil port 8 is directly opposite the output gear 7. An electromagnetic rod 44 is arranged on the central shaft of the barrel 42, and the upper end of the electromagnetic rod 44 is fixedly connected to the control line connection terminal 41. The barrel body 42 is a plastic shell.

[0020] It should be noted that although the oil port 8 and the lubricating oil impact window 43 are separate, the oil port 8 itself has a certain height and is long and rectangular. When the output gear 7 moves, some oil rushes in from the lower half of the oil port 8 and then flows out from the upper half. Although there will be some turbulence, the electric vehicle reducer itself is a closed space, and the debris collection component 4 only needs to deal with a small amount of metal debris. Therefore, metal debris can be collected slowly.

[0021] The utility model patent CN218625363U discloses a lubricating oil filtration structure for a gearbox (hereinafter referred to as "the patent"). This patent uses a filtration structure at the bottom of the gearbox to filter deposited lubricating oil, removing impurities and facilitating collection and reuse. However, this method is structurally complex, and the reusable lubricating oil is not suitable for refilling into automotive gearboxes, thus it is not applicable to electric vehicle gearboxes. The present invention, by incorporating a debris collection component 4 within the gearbox, prevents the output gear 7 from being decomposed during vehicle operation. When the lubricating oil is interrupted, some of it will rush into the oil port 8 and enter the barrel 42 through the lubricating oil impact window 43. It will then come into contact with the energized and magnetic electromagnetic rod 44 inside the barrel 42. Trace metal fragments in the lubricating oil will be attracted to the surface of the electromagnetic rod 44. The lubricating oil that rushed into the barrel 42 will be ejected from the barrel 42 under the high pressure inside the barrel 42. After the vehicle stops, the electromagnetic rod 44 is de-energized, and the metal fragments fall with gravity and are attracted by the magnet 45 at the bottom of the barrel 42. This allows for convenient maintenance of the gearbox and effectively reduces the cost of lubricating oil use.

[0022] This second embodiment is basically the same in structure as the first embodiment, the difference being that, as Figure 4 As shown, a magnet 45 is mounted on the bottom of the barrel 42 via a bracket or groove. The magnet 45 can attract metal debris, preventing it from being washed away by the flow of lubricating oil.

[0023] To further optimize the working efficiency of this application and facilitate the disassembly and assembly of the debris collection assembly 4, the barrel 42 is installed on the outside of the housing 1 by threads or nuts. To ensure the proper functioning of the debris collection assembly 4 and to prevent water ingress, the control line connection terminal 41 is equipped with a waterproof cap and a rubber sealing ring.

[0024] To use, simply install the long-life electric vehicle reducer that is easy to maintain and connect it to the corresponding wiring equipment.

[0025] When this utility model is used, its specific operation is as follows:

[0026] In operation, the motor drives the motor shaft gear 5, intermediate gear 6, and output gear 7 to rotate. The output gear 7 agitates the lubricating oil in housing 1 and housing 2, distributing it evenly across the surfaces of the motor shaft gear 5, intermediate gear 6, output gear 7, and bearings. As the output gear 7 agitates, some lubricating oil flows from the oil port 8 and the lower half of the lubricating oil impact window 43 into the barrel 42, passing through the electromagnetic rod 44. The electromagnetic rod 44 remains energized during operation, attracting metal debris and other impurities adhering to its surface from the lubricating oil. The lubricating oil then re-enters housing 1 and housing 2 from the oil port 8 and the upper half of the lubricating oil impact window 43 for continued lubrication. After shutdown, the electromagnetic rod 44 is de-energized, and some metal debris falls to the bottom of the barrel 42 under gravity and is attracted by the magnet 45. Maintenance is simple: just remove the nut and pull the debris collection component 4 out of the hole in the housing 1, or unscrew the debris collection component 4 directly and clean it. Since the lubricating oil in the housing 1 and housing 2 is not full, the oil surface is lower than the installation port of the debris collection component 4, so it can be cleaned easily without worrying about the lubricating oil leaking out.

[0027] It should be noted that the reducer itself is enclosed, and the internal metal parts will only produce a small amount of metal debris during long-term operation. These metal debris are collected by the debris collection component 4 to ensure the purity of the lubricating oil. Although the internal space of the debris collection component 4 is not large, it can fully accommodate a small amount of metal debris, ensuring that the amount of metal debris in the lubricating oil is kept at a low level.

[0028] In summary, the easy-to-maintain long-life electric vehicle reducer of this utility model, by incorporating a debris collection component 4 within the reduction gearbox, allows the output gear 7 rotating during vehicle operation to continuously move the lubricating oil. Some of the lubricating oil rushes into the oil inlet 8 and enters the tank 42 through the lubricating oil impact window 43. This lubricating oil then contacts the energized and magnetic electromagnetic rod 44 within the tank 42. Trace metal debris in the lubricating oil is then adsorbed onto the surface of the electromagnetic rod 44. The lubricating oil rushing into the tank 42 is then ejected from the tank 42 under the high pressure within the tank 42. After the vehicle stops, the electromagnetic rod 44 is de-energized, and the metal debris falls with gravity and is attracted by the magnet 45 at the bottom of the tank 42. This facilitates the maintenance of the reduction gearbox and effectively reduces the cost of lubricating oil usage.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A long-life electric vehicle reducer that is easy to maintain, comprising a housing (1), a housing (2), an output shaft (3), a motor shaft gear (5), an intermediate gear (6), an output gear (7), an oil port (8), and a differential (9), wherein the housing (1) and the housing (2) are joined by screws, and the motor shaft gear (5), the intermediate gear (6), and the output gear (7) are sequentially arranged in the housing (1) and the housing (2) via bearings, and the output gear (7) is connected to the output shaft (3) on the housing (1) and the housing (2) via the differential (9), characterized in that, An oil port (8) is opened on the inner side of the housing (1), and a debris collection assembly (4) is installed on the outer side of the housing (1). The barrel (42) of the debris collection assembly (4) is inserted into the housing (1). A lubricating oil impact window (43) is opened on the side of the barrel (42). The lubricating oil impact window (43) is aligned with the oil port (8). The oil port (8) is directly opposite the output gear (7). An electromagnetic rod (44) is set on the central shaft of the barrel (42). The upper end of the electromagnetic rod (44) is fixedly connected to the control line connection terminal (41).

2. The easy-to-maintain, long-life electric vehicle reducer according to claim 1, characterized in that, The barrel body (42) is a plastic shell.

3. The easy-to-maintain, long-life electric vehicle reducer according to claim 2, characterized in that, Magnets are installed at the bottom of the barrel (42) via a bracket or groove.

4. The easy-to-maintain, long-life electric vehicle reducer according to claim 1, characterized in that, The barrel (42) is installed on the outside of the housing (1) by threads or nuts.

5. The easy-to-maintain, long-life electric vehicle reducer according to claim 4, characterized in that, The control line connection terminal (41) is equipped with a waterproof cover and a rubber sealing ring.

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