Speed reducer oil supply device with filtering function

Abstract

The application relates to a speed reducer oil supply device with a filtering function, belonging to the field of speed reducer lubrication, which comprises an oil tank, the oil tank is connected with an oil outlet pipe and an oil return pipe, the oil outlet pipe is connected with an oil pump, the oil outlet pipe is connected with multiple speed reducers in series, the oil return pipe is connected with the last oil outlet of all the speed reducers in series, the oil tank is provided with a detachably connected filter screen, and the oil return pipe is provided with a blocking valve which is used for closing the oil return pipe when the filter screen is detached. The application has the effects that the operation is simple, the lubricating oil does not need to be frequently replaced, and the work load of workers is reduced.

Description

Technical Field

[0001] This application relates to the field of gearbox lubrication, and in particular to gearbox oil supply devices with filtering functions. Background Technology

[0002] In the production process of polymer materials such as polystyrene, a large number of mixing and cleaning equipment are required. These equipment are equipped with a large number of speed reducers. During the daily maintenance of the speed reducers, workers need to frequently change the lubricating oil.

[0003] In related technologies, each reducer is equipped with an oil inlet and an oil outlet. When changing the lubricating oil, the worker discharges the old lubricating oil through the oil outlet and then adds new lubricating oil through the oil inlet.

[0004] Regarding the aforementioned technologies, the inventors believe that the existing technologies are rather cumbersome. The lubricating oil in the reducer needs to be changed frequently during use, which is labor-intensive. Furthermore, the old lubricating oil contains a large amount of impurities, making it difficult to handle. Utility Model Content

[0005] To simplify oil change operations, solve the problem of frequent lubricant replacement in the reducer, and reduce the workload of workers, this application provides a reducer oil supply device with a filtration function.

[0006] The oil supply device for a speed reducer with a filtering function provided in this application adopts the following technical solution: A reducer oil supply device with a filtering function includes an oil tank, an oil outlet pipe and a return oil pipe connected to the oil tank, an oil pump connected to the oil outlet pipe, multiple reducers connected in series on the oil outlet pipe, and the return oil pipe connected to the last oil outlet of all the reducers connected in series. The oil tank is equipped with a detachable filter screen, and the return oil pipe is equipped with a shut-off valve. When the filter screen is removed, the shut-off valve closes the return oil pipe.

[0007] By adopting the above solution, the oil outlets and inlets of multiple reducers are connected in series through an oil outlet pipe. The oil pump delivers lubricating oil to each reducer. During the daily maintenance of the reducers, workers do not need to frequently change the lubricating oil. The filter screen on the oil tank can filter the lubricating oil, improve its quality, and thus realize the recycling of lubricating oil. In addition, when the filter screen is removed, the shut-off valve can close the return oil pipe, thereby preventing workers from forgetting to turn off the oil pump when replacing or washing the filter screen, which would cause unfiltered lubricating oil to directly enter the oil tank and damage the quality of the lubricating oil in the tank. This reduces the maintenance cost and difficulty of the oil tank.

[0008] Preferably, the oil outlet and oil inlet of each reducer are connected to a shut-off valve. The oil outlet pipe is connected in series with the reducer and the shut-off valve. The oil outlet pipe is equipped with multiple bypass valves, each of which corresponds to a reducer. The bypass valves are connected in parallel with the reducers to the oil outlet pipe.

[0009] By adopting the above scheme, each reducer is connected in parallel with a bypass valve through the oil outlet pipe. When one or more reducers on the production line need to be taken offline for maintenance, the bypass valve can be opened while the shut-off valve is closed, so that the lubricating oil passes through the pipeline connected to the bypass valve without affecting the normal operation of other reducers, thereby improving production efficiency.

[0010] Preferably, a fixing bracket is fixedly connected to the oil tank at the position corresponding to the return oil pipe, and the filter screen is inserted into the fixing bracket; the blocking valve includes a valve body and a valve core, the valve body is connected to the return oil pipe, the valve core is slidably connected to the valve body, the valve core has a through hole, the valve core can abut against the filter screen, and a return spring is placed inside the valve body; when the filter screen is inserted into the fixing bracket, the valve core moves away from the filter screen, and the through hole opens the return oil pipe; when the filter screen is pulled out of the fixing bracket, the valve core blocks the return oil pipe under the action of the return spring.

[0011] By adopting the above solution, when the filter screen is being cleaned or replaced, it is pulled upwards. At this time, the valve core, which is pressed against the filter screen, loses the force pushing it from the filter screen. Under the action of the return spring, it will move towards the filter screen and block the return oil pipe, preventing unfiltered lubricating oil from flowing directly into the oil tank if the oil pump is not turned off after the filter screen is removed, thus causing a decline in the quality of the lubricating oil. After the filter screen is cleaned or replaced, it can press against the valve core again during the lowering process, thereby allowing the through hole in the valve core to re-open the return oil pipe. The operation is simple and convenient, and it is not easy to damage the quality of the lubricating oil.

[0012] Preferably, one end of the valve core is provided with a guide slope, and the valve core extends out of the valve body at the end corresponding to the guide slope, and the guide slope can abut against the filter screen.

[0013] By adopting the above solution, when the worker is placing the filter screen, the filter screen pushes the valve core through the guide slope, thereby causing the valve core to move away from the filter screen, and thus connecting the through hole and the return oil pipe, making it easier for the worker to place the filter screen, saving time and effort.

[0014] Preferably, a sealing ring is snapped onto the end of the valve body near the filter screen, and the sealing ring forms a sliding seal with the valve core. A sealing sleeve is fitted onto the part of the valve core away from the filter screen, and the sealing sleeve moves synchronously with the valve core.

[0015] By adopting the above solution, when the filter screen is removed, the sealing ring can form a sliding seal with the valve core, and the sealing sleeve can prevent the lubricating oil in the return oil pipe from flowing out along the gap, thereby further preventing unfiltered lubricating oil from entering the oil tank, reducing the quality of the lubricating oil, and damaging the equipment.

[0016] Preferably, the valve body is detachably connected to a threaded end cap at the position corresponding to the reset spring.

[0017] By adopting the above solution, when the valve body needs maintenance, the threaded end cap located at the position of the return spring can be removed, thereby realizing the function of valve body maintenance.

[0018] Preferably, the return oil pipe is rotatably connected to a clearance section near the top of the filter screen, and the clearance section is located above the filter screen, away from the return oil pipe.

[0019] By adopting the above solution, when the filter screen is disassembled or placed, the clearance section can rotate away from its original position to prevent obstruction of the disassembly or placement of the filter screen, thereby making the operation process simpler and easier to operate.

[0020] Preferably, the oil tank is equipped with a level gauge and a thermometer.

[0021] By adopting the above solution, when the equipment is running, the thermometer located inside the oil pump can measure the temperature of the lubricating oil in real time to avoid the oil temperature from getting too high, and the level gauge can check the remaining amount of lubricating oil in the oil tank in real time to facilitate timely oil replenishment.

[0022] In summary, this application has the following beneficial effects: 1. Connecting multiple speed reducers in series enables the recycling of lubricating oil; operation is simple, eliminating the need for frequent oil changes and reducing the workload of workers; and each speed reducer is connected in parallel with a bypass valve, so when one or more speed reducers on the production line need to be taken offline for maintenance, the bypass valve can be closed while the other speed reducer is opened, allowing the lubricating oil to flow through the pipeline connected to the bypass valve without affecting the normal operation of other speed reducers, thus improving production efficiency.

[0023] 2. The filter screen is removable. When the filter screen is removed, the shut-off valve can close the return oil pipe, thereby preventing unfiltered lubricating oil from entering the oil tank directly when workers forget to turn off the oil pump when replacing or washing the filter screen, which would damage the quality of the lubricating oil in the oil tank and reduce the maintenance cost and difficulty of the oil tank. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a reducer oil supply device with a filtering function according to an embodiment of this application; Figure 2This is a cross-sectional view of a protruding oil tank of a reducer oil supply device with a filtering function according to an embodiment of this application; Figure 3 This is a cross-sectional view of a protruding shut-off valve in a reducer oil supply device with a filtering function according to an embodiment of this application.

[0025] Explanation of reference numerals in the attached diagram: 1. Oil tank; 11. Collection tank; 12. Sedimentation tank; 13. Level gauge; 14. Thermometer; 2. Oil pump; 3. Oil outlet pipe; 4. Oil return pipe; 41. Yield section; 5. Pressure gauge; 6. Shut-off valve; 61. Valve body; 611. Threaded end cap; 612. Sealing ring; 62. Valve core; 621. Sealing sleeve; 622. Through hole; 63. Return spring; 7. Filter screen; 71. Fixing bracket; 8. Shut-off valve; 9. Bypass valve. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0027] This application discloses a reducer oil supply device with a filtering function. (Refer to...) Figure 1 The system includes an oil tank 1, which is connected to an oil outlet pipe 3 and an oil return pipe 4. The oil outlet pipe 3 is connected to an oil pump 2, which is connected in series with all the reducers. The oil outlet pipe 3 connects the oil inlet and outlet of two adjacent reducers. Each reducer has a shut-off valve 8 connected to both its oil outlet and inlet. The oil outlet pipe 3 is connected in series with the reducer and the shut-off valve 8. The oil outlet pipe 3 is equipped with multiple bypass pipes, which are connected to bypass valves 9. Each bypass valve 9 corresponds to a reducer. The bypass pipes are connected in parallel with the reducers to the oil outlet pipe 3. The oil return pipe 4 is connected to the last oil outlet of all the reducers connected in series. The last oil outlet is connected to a pressure gauge 5, which is connected to the oil tank 1 through the oil return pipe 4.

[0028] This device can connect multiple speed reducers in series, enabling the recycling of lubricating oil; it is easy to operate, does not require frequent lubricating oil changes, and reduces the workload of workers.

[0029] Reference Figure 1 and Figure 2 A fixing bracket 71 is fixedly connected to the oil tank 1 at the position corresponding to the return oil pipe 4. A filter screen 7 is inserted into the fixing bracket 71, and the end of the return oil pipe 4 is located above the filter screen 7. A clearance section 41 is rotatably connected to the return oil pipe 4 near the position above the filter screen 7. The portion of the clearance section 41 away from the return oil pipe 4 is located directly above the filter screen 7, and the portion of the clearance section 41 near the return oil pipe 4 is rotatably connected to the return oil pipe 4. A partition plate is fixedly connected inside the oil tank 1, dividing the oil tank 1 into a collection tank 11 and a sedimentation tank 12. The height of the partition plate is lower than the height of the oil tank 1. The oil outlet pipe 3 is connected to the collection tank 11. A level gauge 13 and a thermometer 14 are fixedly connected to the collection tank 11.

[0030] Reference Figure 2 and Figure 3 A shut-off valve 6 is connected to the return oil pipe 4 near the filter screen 7. The shut-off valve 6 includes a valve body 61, which is a hollow cylinder. The axis of the return oil pipe 4 is perpendicular to the axis of the valve body 61. A valve core 62 is slidably connected in the valve body 61. The valve core 62 is a cylinder with a through hole 622, which is coaxial with the return oil pipe 4. The valve core 62 is coaxial with the valve body 61 and is horizontally positioned.

[0031] This device can block the return oil pipe 4 when the worker is cleaning or replacing the filter screen 7, preventing unfiltered lubricating oil from flowing directly into the oil tank 1 and causing a decline in the quality of the lubricating oil, which would be caused by forgetting to turn off the oil pump 2 after the filter screen 7 is removed.

[0032] Reference Figure 2 and Figure 3 One end of the valve core 62 has a guide slope, and the valve core 62 is positioned to extend out of the valve body 61 corresponding to the guide slope. The guide slope can abut against the filter screen 7. The guide slope slopes downward from the side away from the filter screen 7 to the side closer to the filter screen 7. When the filter screen 7 moves downward, the bottom of the filter screen 7 pushes the guide slope to move away from the filter screen 7.

[0033] The oil supply device for the reducer with filtration function of this application can save workers time and effort in the process of placing or removing the filter screen 7, and make the filter screen 7 easier to take out or place.

[0034] Reference Figure 2 and Figure 3 Inside the valve body 61, a return spring 63 is placed at the end of the valve core 62 furthest from the filter screen 7. The return spring 63 is coaxially aligned with the valve core 62, and applies a force to the valve core 62 as it approaches the filter screen 7. An inspection port is provided at the end of the valve body 61 corresponding to the return spring 63. A threaded end cap 611 is threadedly connected to the inspection port, covering it. One end of the return spring 63 abuts against the threaded end cap 611, and the other end abuts against the end of the valve core 62 furthest from the filter screen 7.

[0035] The oil supply device for the reducer with filtration function in this application can realize the maintenance function of valve body 61. During maintenance, it is only necessary to remove the threaded end cover 611 to check and maintain it, which is simple to operate.

[0036] Reference Figure 2 and Figure 3 A sealing ring 612 is snapped onto the end of the valve body 61 near the filter screen 7, and the sealing ring 612 and the valve core 62 form a sliding seal; a sealing sleeve 621 is fitted onto the part of the valve core 62 away from the filter screen 7, and the sealing sleeve 621 moves synchronously with the valve core 62, and the sealing sleeve 621 and the valve body 61 form a sliding seal.

[0037] The gearbox oil supply device with filtration function of this application can prevent unfiltered lubricating oil from entering the oil tank 1, thereby reducing the quality of the lubricating oil and damaging the equipment.

[0038] The implementation principle of the oil supply device for a speed reducer with a filtering function in this application embodiment is as follows: During the oil supply process for the speed reducer, lubricating oil is first added to the oil tank 1, and then the oil pump 2 is turned on. The oil pump 2 can supply oil to multiple speed reducers connected in series in series sequence. When one or more speed reducers on the production line need to be taken offline for maintenance, the bypass valve 9 can be opened while the shut-off valve 8 is closed, so that the lubricating oil passes through the pipeline connected to the bypass valve 9. When the filter screen 7 needs to be replaced or cleaned, when the workers take out the filter screen 7, the shut-off valve 6 can close the return oil pipe 4. When the workers put the filter screen 7 back, the shut-off valve 6 can reconnect the return oil pipe 4. The threaded end cap 611 on the shut-off valve 6 can be used for maintenance of the shut-off valve 6. The thermometer 14 located in the oil pump 2 can measure the temperature of the lubricating oil in real time to avoid the oil temperature from being too high. The level gauge 13 can check the remaining amount of lubricating oil in the oil tank 1 in real time, so as to facilitate timely oil replenishment.

[0039] The embodiments of this application have the advantages of being easy to operate, not requiring frequent changes of lubricating oil, and reducing the workload of workers.

[0040] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A reducer oil supply device with a filtering function, comprising an oil tank (1), characterized in that: The oil tank (1) is connected to an oil outlet pipe (3) and an oil return pipe (4). The oil outlet pipe (3) is connected to an oil pump (2). The oil outlet pipe (3) is connected in series with multiple speed reducers. The oil return pipe (4) is connected to the last oil outlet of all the series speed reducers. The oil tank (1) is equipped with a detachable filter screen (7). The oil return pipe (4) is equipped with a shut-off valve (6). When the filter screen (7) is removed, the shut-off valve (6) closes the oil return pipe (4).

2. The reducer oil supply device with filtering function according to claim 1, characterized in that: Each reducer has an oil outlet and an oil inlet connected to a shut-off valve (8). The oil outlet pipe (3) is connected in series with the reducer and the shut-off valve (8). The oil outlet pipe (3) is equipped with multiple bypass valves (9). Each bypass valve (9) corresponds to a reducer and is connected in parallel with the reducer to the oil outlet pipe (3).

3. The oil supply device for a speed reducer with a filtering function according to claim 1, characterized in that: The oil tank (1) is fixedly connected to a fixing frame (71) at the position corresponding to the return oil pipe (4), and the filter screen (7) is inserted into the fixing frame (71); the blocking valve (6) includes a valve body (61) and a valve core (62), the valve body (61) is connected to the return oil pipe (4), the valve core (62) is slidably connected to the valve body (61), the valve core (62) has a through hole (622), the valve core (62) can abut against the filter screen (7), and a return spring (63) is placed inside the valve body (61); when the filter screen (7) is inserted into the fixing frame (71), the valve core (62) moves away from the filter screen (7), and the through hole (622) connects to the return oil pipe (4); when the filter screen (7) is pulled out of the fixing frame (71), the valve core (62) blocks the return oil pipe (4) under the action of the return spring (63).

4. The reducer oil supply device with filtering function according to claim 3, characterized in that: The valve core (62) has a guide slope at one end, and the valve core (62) extends out of the valve body (61) at the end corresponding to the guide slope. The guide slope can abut against the filter screen (7).

5. A reducer oil supply device with filtering function according to claim 3, characterized in that: A sealing ring (612) is snapped onto one end of the valve body (61) near the filter screen (7). The sealing ring (612) and the valve core (62) form a sliding seal. A sealing sleeve (621) is fitted onto the valve core (62) away from the filter screen (7). The sealing sleeve (621) moves synchronously with the valve core (62).

6. The oil supply device for a speed reducer with a filtering function according to claim 3, characterized in that: The valve body (61) is detachably connected to a threaded end cap (611) at the position corresponding to the reset spring (63).

7. The oil supply device for a speed reducer with a filtering function according to claim 1, characterized in that: The return oil pipe (4) is rotatably connected to a clearance section (41) near the filter screen (7) above it. The clearance section (41) is located above the filter screen (7) and is away from the return oil pipe (4).

8. The oil supply device for a speed reducer with a filtering function according to claim 1, characterized in that: The oil tank (1) is equipped with a level gauge (13) and a thermometer (14).

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