Filtering device for lubricating oil of speed reducer

Abstract

The utility model discloses a speed reducer lubricating oil filtering device, which belongs to the technical field of speed reducers and comprises a speed reducer body, a liquid discharge pipe is arranged on the side of the speed reducer body, a liquid inlet pipe is arranged at the top of the speed reducer body, a liquid return pipe is mounted at the top end of the liquid inlet pipe, and a filtering box is fixedly sleeved at the top end of the liquid return pipe. According to the speed reducer, lubricating oil in the speed reducer body is pumped into the filter cartridge in the inner cavity of the filter box through the liquid pump, the liquid drainage pipe, the liquid guide steel pipe, the liquid guide hose and the connecting plug, and the lubricating oil is filtered through the filter holes in the filter cartridge, so that impurities in the lubricating oil are cleaned; and the filtered lubricating oil is guided back to the inner cavity of the speed reducer body from the liquid return pipe and the liquid inlet pipe, so that the function of directly filtering the lubricating oil in the speed reducer body is realized, and the problem that the lubricating oil needs to be independently discharged for filtering is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, and more specifically, to a lubricating oil filtering device for a reducer. Background Art

[0002] A reducer is an independent component consisting of a gear transmission, a worm transmission, or a gear-worm transmission enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine. It matches the speed and transmits torque between the prime mover and the working machine or actuator. It is widely used in modern machinery. In order to reduce the wear of the transmission components inside the reducer, lubricating oil is set inside the reducer. However, some wear is inevitable when the transmission components are transmitting, and the waste chips and impurities from the wear will be mixed in the lubricating oil, affecting the subsequent lubrication of the transmission components by the lubricating oil.

[0003] After searching, the utility model patent with publication number CN211715735U discloses a reducer lubricating oil filtering device, comprising a fixed surface, a reducer body, an oil pump and an oil tank arranged on the fixed surface, a filter cartridge is rotatably provided in the oil tank, a filter hole is provided on the outer wall of the filter cartridge, a tank cover is provided at the upper end of the oil tank, a motor is provided on the tank cover, a main shaft is fixedly provided on the motor shaft of the motor, a stirring blade is provided on the outer wall of the lower end of the main shaft, the main shaft passes through the upper and lower end surfaces of the filter cartridge and is fixedly welded as a whole, and a heating plate is provided on the inner wall of the oil tank; the device can ensure that the lubricating oil in the oil tank remains in a liquid state, at this time, the high-speed rotating stirring blade will stir the liquid lubricating oil in the filter cartridge at high speed to prevent impurities from settling, and then be thrown outward by centrifugal force and then filtered by the filter hole. The pure liquid lubricating oil after filtration will be smoothly extracted, thereby improving the stirring and filtering quality and smoothness when oiling the reducer as a whole.

[0004] However, the above patent has the following shortcomings: it requires the oil in the reducer to be discharged separately and then filtered through the above filtering device, which is not practical; and it is not convenient to clean the impurities filtered out of the filter cartridge. To address this problem, we propose a reducer lubricating oil filtering device. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a reducer lubricating oil filtering device.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A reducer lubricating oil filtering device comprises a reducer body, a drain pipe is provided on the side of the reducer body, a liquid inlet pipe is provided on the top of the reducer body, a return pipe is installed on the top of the liquid inlet pipe, a filter box is fixedly connected to the top of the return pipe, a mounting mechanism is provided on the side of the filter box, a filter cartridge is provided on the mounting mechanism, the filter cartridge is located in the inner cavity of the filter box, a plurality of filter holes are opened on the side of the filter cartridge, a liquid guide steel pipe is installed on the end of the drain pipe, the end of the liquid guide steel pipe is fixedly connected to a liquid suction pump, the output end of the liquid suction pump is fixedly connected to a liquid guide hose, the end of the liquid guide hose is fixedly connected to a plug connector, the end of the plug connector is fixedly connected to the inner cavity of the filter box, and a controller is fixedly installed on the side of the filter box.

[0008] As a preferred solution of the present invention, the mounting mechanism includes a threaded hole opened on the side of the filter box, a threaded plug is threadedly installed on the threaded hole, a servo motor is fixedly installed on the outside of the threaded plug, and the output shaft of the servo motor extends to the inner cavity of the filter box and is connected to the end of the filter cartridge.

[0009] As a preferred solution of the present invention, an electric heating plate is fixedly mounted on the inner wall of the filter cartridge, and a protective shell is fixedly connected to the inner wall of the filter cartridge and located outside the electric heating plate.

[0010] As a preferred solution of the present invention, a support ring is fixedly connected to the inner wall of the filter box, the end of the support ring is movably sleeved into the inner cavity of the filter cartridge, the side of the support ring is fitted with the inner wall of the filter cartridge, and the support ring and the plug connector are concentrically arranged.

[0011] As a preferred solution of the present invention, a third flange is provided at the end of the drainage pipe, a fourth flange is provided at the end of the liquid-conducting steel pipe, and a plurality of second bolt connectors are installed on the third flange and the fourth flange.

[0012] As a preferred solution of the present invention, a first flange is provided at the top end of the liquid inlet pipe, a second flange is provided at the bottom end of the liquid return pipe, and a plurality of first bolt connectors are installed on the second flange and the first flange.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the present invention, the lubricating oil in the reducer body is pumped into the filter cartridge in the inner cavity of the filter box by means of a liquid pump, a liquid discharge pipe, a liquid guide steel pipe, a liquid guide hose and a plug connector. The lubricating oil is filtered by means of the filter holes on the filter cartridge, thereby cleaning the impurities in the lubricating oil. The filtered lubricating oil is guided back to the inner cavity of the reducer body through the return pipe and the liquid inlet pipe, thereby realizing the function of directly filtering the lubricating oil in the reducer body and avoiding the problem of needing to release the lubricating oil separately for filtering.

[0015] (2) In the present invention, the threaded plug can be removed from the filter box through the cooperation of the threaded hole and the threaded plug, so that the filter cartridge can be taken out from the inner cavity of the filter box, and the waste debris and impurities filtered out of the filter cartridge can be cleaned, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded view of the overall structure of the utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the filter box of the utility model;

[0019] Figure 4 This is a schematic diagram of the disassembly of the filter box and the threaded plug of the utility model;

[0020] Figure 5 It is a cross-sectional schematic diagram of the filter cartridge of the present invention.

[0021] Description of the numbers in the figure:

[0022] 1. Reducer body; 2. Drain pipe; 3. Liquid inlet pipe; 4. Liquid return pipe; 5. Filter box; 6. Mounting mechanism; 7. Filter cartridge; 8. Filter hole; 9. Liquid guide steel pipe; 10. Liquid pump; 11. Liquid guide hose; 12. Connector; 13. Threaded hole; 14. Threaded plug; 15. Servo motor; 16. Electric heating plate; 17. Protective shell; 18. Support ring; 19. First flange; 20. Second flange; 21. First bolt connection; 22. Third flange; 23. Fourth flange; 24. Second bolt connection; 25. Controller. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0026] Example:

[0027] See also Figure 1-5 A reducer lubricating oil filtering device comprises a reducer body 1, a drain pipe 2 is provided on the side of the reducer body 1, a liquid inlet pipe 3 is provided on the top of the reducer body 1, a return pipe 4 is installed on the top of the liquid inlet pipe 3, a filter box 5 is fixedly connected to the top of the return pipe 4, a mounting mechanism 6 is provided on the side of the filter box 5, a filter cartridge 7 is provided on the mounting mechanism 6, the filter cartridge 7 is located in the inner cavity of the filter box 5, a plurality of filter holes 8 are opened on the side of the filter cartridge 7, a liquid guide steel pipe 9 is installed at the end of the drain pipe 2, the end of the liquid guide steel pipe 9 is fixedly connected to a liquid suction pump 10, the output end of the liquid suction pump 10 is fixedly connected to a liquid guide hose 11, the end of the liquid guide hose 11 is fixedly connected with a plug connector 12, the end of the plug connector 12 is fixedly connected to the inner cavity of the filter box 5, and a controller 25 is fixedly installed on the side of the filter box 5.

[0028] In this embodiment, the liquid pump 10 , the controller 25 and the electric heating plate 16 are connected to an external power source via wires. In addition, the controller 25 is used to control the liquid pump 10 , the electric heating plate 16 and the servo motor 15 .

[0029] For details, please refer to Figure 1 、 Figure 3 and Figure 4The mounting mechanism 6 includes a threaded hole 13 opened on the side of the filter box 5, a threaded plug 14 is threadedly installed on the threaded hole 13, and a servo motor 15 is fixedly installed on the outside of the threaded plug 14. The output shaft of the servo motor 15 extends to the inner cavity of the filter box 5 and is connected to the end of the filter cartridge 7.

[0030] In this embodiment, the filter cartridge 7 is installed in the inner cavity of the filter box 5 through the cooperation of the threaded hole 13 and the threaded plug 14. In addition, the servo motor 15 is connected to the power supply of the external device through a wire to supply power to it.

[0031] For details, please refer to Figure 5 An electric heating plate 16 is fixedly mounted on the inner wall of the filter cartridge 7 , and a protective shell 17 is fixedly connected to the inner wall of the filter cartridge 7 and located on the outer side of the electric heating plate 16 .

[0032] In this embodiment, the electric heating plate 16 is used to generate temperature in the filter cartridge 7, thereby reducing the viscosity of the viscous lubricating oil, making it easier to filter the lubricating oil while ensuring that the heating temperature does not affect the performance of the lubricating oil. In addition, the material of the filter cartridge 7 has thermal conductivity.

[0033] For details, please refer to Figure 3 and Figure 4 The inner wall of the filter box 5 is fixedly connected with a support ring 18, and the end of the support ring 18 is movably connected to the inner cavity of the filter cartridge 7. The side of the support ring 18 fits the inner wall of the filter cartridge 7, and the support ring 18 and the plug connector 12 are concentrically arranged.

[0034] In this embodiment, the filter cartridge 7 is supported by the support ring 18 , and at the same time, the sealing performance of the lubricating oil filtration in the filter cartridge 7 is ensured.

[0035] For details, please refer to Figure 2 A third flange 22 is provided at the end of the discharge pipe 2, and a fourth flange 23 is provided at the end of the liquid guide steel pipe 9. A plurality of second bolt connectors 24 are installed on the third flange 22 and the fourth flange 23.

[0036] In this embodiment, the liquid-conducting steel pipe 9 is installed and connected to the liquid-draining pipe 2 by the cooperation of the third flange 22 , the fourth flange 23 and the second bolt connection member 24 .

[0037] For details, please refer to Figure 2 A first flange 19 is provided at the top end of the liquid inlet pipe 3 , a second flange 20 is provided at the bottom end of the liquid return pipe 4 , and a plurality of first bolt connectors 21 are installed on the second flange 20 and the first flange 19 .

[0038] In this embodiment, the filter box 5 is mounted on the liquid inlet pipe 3 at the top of the reducer body 1 through the cooperation of the first flange 19 , the second flange 20 and the first bolt connector 21 .

[0039] Working principle: When in use, first, the lubricating oil is located in the reducer body 1 to lubricate the transmission parts. In addition, the controller 25 is used to start the liquid pump 10, the electric heating plate 16 and the servo motor 15 at a fixed time. Then, the liquid pump 10 is used to make the liquid guide steel pipe 9 generate suction, so that the lubricating oil in the inner cavity of the reducer body 1 is introduced from the discharge pipe 2, the liquid guide steel pipe 9, the liquid guide hose 11 and the plug connector 12 to the filter cartridge 7 in the inner cavity of the filter box 5. The filter hole 8 on the side of the filter cartridge 7 is used to filter the impurities in the lubricating oil. At the same time, the electric heating plate 16 makes the filter cartridge 7 have a certain amount of heat. The filter cartridge 7 reduces the viscosity of the viscous lubricating oil, and the servo motor 15 is used to drive the filter cartridge 7 to rotate, so that the lubricating oil in the filter cartridge 7 is efficiently filtered, and then the filtered lubricating oil falls to the bottom of the inner cavity of the filter box 5. At this time, the lubricating oil temperature drops and becomes viscous again. At the same time, the lubricating oil in the inner cavity of the filter box 5 is guided back to the reducer body 1 through the return pipe 4 and the inlet pipe 3. Finally, the threaded plug 14 is rotated regularly to remove the threaded plug 14 from the filter box 5, so that the filter cartridge 7 can be taken out from the inner cavity of the filter box 5, thereby cleaning the waste filtered out of the filter cartridge 7.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reducer lubricating oil filtering device, comprising a reducer body (1), characterized in that: A liquid discharge pipe (2) is provided on the side of the reducer body (1), a liquid inlet pipe (3) is provided on the top of the reducer body (1), a liquid return pipe (4) is installed on the top end of the liquid inlet pipe (3), a filter box (5) is fixedly sleeved on the top end of the liquid return pipe (4), a mounting mechanism (6) is provided on the side of the filter box (5), a filter cartridge (7) is provided on the mounting mechanism (6), the filter cartridge (7) is located in the inner cavity of the filter box (5), and the side of the filter cartridge (7) is provided with a filter cartridge (7). A plurality of filter holes (8) are provided, a liquid guide steel pipe (9) is installed at the end of the liquid discharge pipe (2), the end of the liquid guide steel pipe (9) is fixedly connected to a liquid extraction pump (10), the output end of the liquid extraction pump (10) is fixedly connected to a liquid guide hose (11), the end of the liquid guide hose (11) is fixedly sleeved with a plug connector (12), the end of the plug connector (12) is fixedly sleeved to the inner cavity of the filter box (5), and a controller (25) is fixedly installed on the side of the filter box (5).

2. A reducer lubricating oil filter device according to claim 1, characterized in that: The mounting mechanism (6) comprises a threaded hole (13) provided on the side of the filter box (5), a threaded plug (14) being threadedly mounted on the threaded hole (13), a servo motor (15) being fixedly mounted on the outer side of the threaded plug (14), and an output shaft of the servo motor (15) extending into the inner cavity of the filter box (5) and connected to the end of the filter cartridge (7).

3. The reducer lubricating oil filter device according to claim 2, characterized in that: An electric heating plate (16) is fixedly mounted on the inner wall of the filter cartridge (7), and a protective shell (17) is fixedly connected to the inner wall of the filter cartridge (7) and located outside the electric heating plate (16).

4. The reducer lubricating oil filter device according to claim 1, characterized in that: A support ring (18) is fixedly connected to the inner wall of the filter box (5), and the end of the support ring (18) is movably sleeved into the inner cavity of the filter cartridge (7). The side surface of the support ring (18) fits the inner wall of the filter cartridge (7), and the support ring (18) and the plug connector (12) are concentrically arranged.

5. The reducer lubricating oil filter device according to claim 1, characterized in that: The end of the liquid discharge pipe (2) is provided with a third flange (22), the end of the liquid guide steel pipe (9) is provided with a fourth flange (23), and a plurality of second bolt connectors (24) are installed on the third flange (22) and the fourth flange (23).

6. The reducer lubricating oil filter device according to claim 1, characterized in that: The top end of the liquid inlet pipe (3) is provided with a first flange (19), the bottom end of the liquid return pipe (4) is provided with a second flange (20), and a plurality of first bolt connectors (21) are installed on the second flange (20) and the first flange (19).

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