A gearbox gear oil filling and dispensing device
By designing a gearbox oil filling and discharging device and using solenoid valves and oil level gauges for control, high-viscosity gear oil can be efficiently added and discharged. This solves the maintenance problems under the traditional static pressure oil discharge method and improves equipment maintenance efficiency and operational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PANGANG GRP PANZHIHUA STEEL & VANADIUM
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-09
Smart Images

Figure CN224339459U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial machinery lubrication technology, and in particular to a gearbox gear oil filling and dispensing device. Background Technology
[0002] In industrial production, mechanically cooled fans are widely used in various heat dissipation scenarios, and their stable operation is crucial for production continuity. As the core component of a mechanically cooled fan, the gearbox requires regular replacement and replenishment of high-viscosity, heavy-duty gear oil to ensure normal operation and extend its service life.
[0003] However, the characteristics of high-viscosity, heavy-duty gear oils present numerous challenges for maintenance. Traditional hydrostatic draining methods, limited by the oil's viscosity, cannot completely drain the gear oil in a short time, significantly increasing gearbox maintenance time and making thorough repairs difficult. Residual old oil not only contaminates newly added gear oil, reducing its performance, but may also accelerate the wear of internal gearbox components.
[0004] Therefore, how to provide a gearbox gear oil filling and dispensing device that can conveniently add and dispense gear oil and reduce labor intensity is a technical problem that needs to be solved by those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to provide a gearbox oil filling and dispensing device, which solves the technical problem that it is inconvenient to add or dispense gearbox oil in existing gearboxes.
[0006] To achieve the above objectives, this utility model provides a gearbox gear oil filling and discharging device, comprising:
[0007] The gearbox of the speed reducer has an opening at the bottom that is connected to an oil filling and draining main pipe. The outlet of the oil filling and draining main pipe is connected to a tee pipe. The first outlet of the tee pipe is connected to the oil draining main pipe, and the second outlet of the tee pipe is connected to an oil filling main pipe. The outlet ends of the oil draining main pipe and the oil filling main pipe are both connected to an oil collection port.
[0008] An oil storage tank, the upper and lower openings of which are connected to the main refueling pipe via a first pipe and a second pipe respectively, the second pipe being equipped with an oil filling and discharging pump and connected to the main refueling pipe, and the second pipe being connected to a new oil pipe, the new oil pipe being equipped with a new oil filling pump, and the new oil pipe being connected to the main drain pipe via a third pipe;
[0009] An oil level gauge is installed on the oil filling and discharging main pipe;
[0010] The new oil pipeline is equipped with a first solenoid valve, the second pipeline is equipped with a second solenoid valve, the refueling main pipeline is equipped with a third solenoid valve, a fifth solenoid valve, an eighth solenoid valve and a check valve, the first pipeline is equipped with a fourth solenoid valve, the oil drain main pipeline is equipped with a sixth solenoid valve and a ninth solenoid valve, and the third pipeline is equipped with a seventh solenoid valve.
[0011] Preferably, the oil filling / discharging header is equipped with a matching oil filling hole.
[0012] Preferably, the height of the oil reservoir is higher than the height of the gearbox of the reducer.
[0013] Preferably, the oil pump is a bidirectional gear pump or a screw pump.
[0014] Preferably, the new oil pipeline is equipped with a filter.
[0015] Preferably, the oil level gauge is an electronic liquid level sensor.
[0016] Preferably, the oil collection port is connected to a waste oil recovery device.
[0017] Preferably, the first pipe, the second pipe, the third pipe, the refueling header, and the drain header are all oil-resistant, pressure-resistant hoses or rigid metal pipes.
[0018] Compared with the above-mentioned background technology, the present invention provides a gearbox gear oil filling and discharging device, which remotely opens the second, third and fifth solenoid valves and closes other related solenoid valves when adding oil to the gearbox of the reducer, and starts the oil filling and discharging pump.
[0019] Gear oil is pumped from the reservoir through a second pipe to the main filling pipe, and then enters the gearbox. When the oil level gauge indicates that the oil level has reached the target value, the remote control system stops the filling and draining pumps and closes the relevant solenoid valves, completing the filling operation. When draining oil from the gearbox: the remote control system opens the sixth, seventh, and eighth solenoid valves while closing other relevant solenoid valves, and starts the filling and draining pumps to create negative pressure. The old oil in the gearbox is extracted through the filling and draining main pipes, the tee pipe, and the draining main pipe, and discharged to a designated recovery container. When the filling and draining pumps run dry without producing oil, and the oil level gauge double-confirms that the oil in the gearbox has been completely drained, the remote control system stops the filling and draining pumps and closes the relevant solenoid valves, completing the draining operation.
[0020] In summary, the gearbox oil filling and discharging device provided in this application achieves efficient and convenient gear oil filling and discharging, improving equipment maintenance efficiency and operational stability. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of a gearbox gear oil filling device provided in an embodiment of the present invention.
[0023] in:
[0024] 01-First solenoid valve, 02-Second solenoid valve, 03-Third solenoid valve, 04-Fourth solenoid valve, 05-Fifth solenoid valve, 06-Sixth solenoid valve, 07-Seventh solenoid valve, 08-Eighth solenoid valve, 09-Ninth solenoid valve;
[0025] 1-Gearbox of reducer, 2-Oil filling and draining main pipe, 3-Oil draining main pipe, 4-Oil filling main pipe, 5-Oil draining collection port, 6-Oil storage tank, 7-First pipe, 71-Second pipe, 8-Oil filling and draining pump, 9-New oil pipe, 10-New oil filling pump, 11-Third pipe, 12-Oil level gauge, 13-Check valve, 14-Original filling hole. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] See Figure 1This application provides a gearbox gear oil filling and discharging device, including a reducer gearbox 1, the bottom opening of the reducer gearbox 1 being connected to a filling and discharging main pipe 2, the outlet of the filling and discharging main pipe 2 being connected to a tee pipe, the first outlet of the tee pipe being connected to a drain main pipe 3, the second outlet of the tee pipe being connected to a filling main pipe 4, and the outlet ends of both the drain main pipe 3 and the filling main pipe 4 being connected to a drain collection port 5; an oil storage tank 6, the upper and lower openings of the oil storage tank 6 being connected to the filling main pipe 4 via a first pipe 7 and a second pipe 71 respectively, the second pipe 71 being equipped with a filling and discharging pump 8 and connected to the filling main pipe 4, and a second pipe The new oil pipeline 9 is connected to the new oil pipeline 71. The new oil pipeline 9 is equipped with a new oil pump 10 and is connected to the drain pipe 3 via the third pipeline 11. The oil level gauge 12 is installed on the drain pipe 2. The new oil pipeline 9 is equipped with a first solenoid valve 01, the second pipeline 71 is equipped with a second solenoid valve 02, the drain pipe 4 is equipped with a third solenoid valve 03, a fifth solenoid valve 05, an eighth solenoid valve 08 and a check valve 13, the first pipeline 7 is equipped with a fourth solenoid valve 04, the drain pipe 3 is equipped with a sixth solenoid valve 06 and a ninth solenoid valve 09, and the third pipeline 11 is equipped with a seventh solenoid valve 07.
[0029] In other words, the bottom opening of the reducer gearbox 1 is directly connected to the oil filling and draining header 2 for filling and draining gear oil. The outlet of the oil filling and draining header 2 is connected to a three-way pipe with two outlets, which are connected to the oil draining header 3 and the oil filling header 4 respectively. The outlets of the oil draining header 3 and the oil filling header 4 eventually converge to the oil drain collection port 5. The oil draining header 3 and the oil filling header 4 are independent and are used for oil draining and oil filling operations respectively.
[0030] The oil storage tank 6 is used to store new high-viscosity heavy-duty gear oil. Its upper and lower openings are connected to the oil filling header 4 through the first pipe 7 and the second pipe 71, respectively.
[0031] The second pipeline 71 is equipped with an oil pump 8, which is responsible for pumping gear oil from the oil storage tank 6 to the oil filling header 4, and also for discharging old oil.
[0032] The new oil pipeline 9 is equipped with a new oil refueling pump 10, which is used to draw new oil from the low-altitude platform.
[0033] The oil level gauge 12 is installed on the oil filling and draining header 2 to monitor the oil level in the gearbox in real time and ensure the accuracy of oil filling and draining operations.
[0034] Refueling process for fuel tank 6:
[0035] New oil is drawn from the low-altitude platform through the new oil pump 10 and enters the high-altitude platform oil storage tank 6 through the first solenoid valve 01, the oil pump 8, the check valve 13, the third solenoid valve 03, and the fourth solenoid valve 04.
[0036] Lubrication process for gearbox 1 of the reducer:
[0037] Remotely open the second solenoid valve 02, the third solenoid valve 03 and the fifth solenoid valve 05, while closing other related solenoid valves, and start the oil pump 8.
[0038] Gear oil is pumped from the oil reservoir 6 through the second pipe 71 to the oil filling header 4, and then enters the gearbox 1 of the reducer.
[0039] When the oil level gauge 12 shows that the oil level has reached the target value, the remote control system stops the oil pump 8 and closes the relevant solenoid valves to complete the refueling operation.
[0040] Oil draining process of gearbox 1:
[0041] The remote control system opens the sixth solenoid valve 06, the seventh solenoid valve 07, and the eighth solenoid valve 08, while closing other related solenoid valves, and starts the oil pump 8 to create negative pressure.
[0042] The old oil in the gearbox 1 of the reducer is extracted through the oil filling and draining header 2, the three-way pipe and the oil draining header 3 and discharged to the designated recycling container.
[0043] When the oil pump 8 runs dry without producing oil, and the oil level gauge 12 double-confirms that the oil in the gearbox has been completely drained, the remote control system stops the oil pump 8 and closes the relevant solenoid valves to complete the oil draining operation.
[0044] In summary, the gearbox oil filling and discharging device provided in this application achieves efficient and convenient gear oil filling and discharging, improving equipment maintenance efficiency and operational stability.
[0045] Based on the above embodiments, the oil filling and draining main pipe 2 is provided with the original oil filling hole 14; the height of the oil storage tank 6 is higher than the height of the gearbox 1 of the reducer.
[0046] In other words, the oil filling and draining main pipe 2 is equipped with the original oil filling port 14. The original oil filling port 14 is a standard interface, which can be used as a backup oil filling in case of emergency, as well as for replenishing a small amount of gear oil during routine maintenance, thus improving the flexibility and convenience of the device.
[0047] The horizontal height of the oil storage tank 6 is greater than that of the gearbox 1 of the reducer. This height difference not only utilizes the effect of gravity, allowing new oil to flow naturally to the gearbox to a certain extent even when the oil pump 8 is not working, thus reducing the energy consumption of pumping, but also provides better working conditions for the oil pump 8, ensuring the stability and efficiency of the pumping process.
[0048] Based on the above embodiments, the oil pump 8 is a bidirectional gear pump or a screw pump; a filter is provided on the new oil pipeline 9; and the oil level gauge 12 is an electronic liquid level sensor.
[0049] Specifically, the oil filling / draining pump 8 is either a double-acting gear pump or a screw pump, both of which have powerful suction and discharge capabilities, making them particularly suitable for filling and draining high-viscosity, heavy-duty gear oils. The design of the double-acting gear pump or screw pump ensures that the pump maintains high efficiency and stable performance during both filling and draining processes. Switching between filling and draining functions can be easily achieved by adjusting the pump's rotation direction, greatly improving the operational flexibility and work efficiency of the device.
[0050] A filter was added to the new oil pipeline 9. The filter uses a high-precision filter element, which can effectively intercept impurities and particles in the new oil, ensuring that the gear oil entering the gearbox 1 of the reducer is clean and free of impurities. The filter not only protects the gearbox from impurities and extends the service life of the equipment, but also improves the lubrication effect of the gear oil and ensures the stable operation of the mechanical cooling fan.
[0051] The oil level gauge 12 is an electronic liquid level sensor. The electronic liquid level sensor can provide real-time and accurate feedback on the oil level information in the gearbox 1 of the reducer. When the oil level reaches the preset high or low level, the sensor will immediately send a signal to remind the operator to take appropriate measures.
[0052] Based on the above embodiments, the oil collection port 5 is connected to the waste oil recovery device. Specifically, the old oil discharged from the gearbox 1 of the reducer can be collected quickly and effectively, avoiding pollution to the environment caused by old oil leakage. It also facilitates the unified treatment and recycling of waste oil in the future. The waste oil recovery device is also equipped with a liquid level monitoring and alarm system. When the waste oil in the device reaches a certain liquid level, an alarm will be issued to remind the operator to clean or transfer the waste oil in time.
[0053] Based on the above embodiments, the first pipe 7, the second pipe 71, the third pipe 11, the refueling main pipe 4, and the draining main pipe 3 are all made of oil-resistant and pressure-resistant flexible hoses or metal rigid pipes.
[0054] Oil-resistant and pressure-resistant hoses have good flexibility and corrosion resistance, and can adapt to various complex installation environments and space constraints.
[0055] The use of rigid metal pipes ensures the stability and reliability of oil transportation and reduces the risk of safety accidents caused by pipe rupture or leakage.
[0056] Specifically, the aforementioned solenoid valve is designed to open when energized and close when de-energized, and is controlled by a PLC control system. In other words, the solenoid valve is designed to open when energized and close when de-energized, ensuring that the solenoid valve can respond quickly and open when it receives an electrical signal, and automatically close when the electrical signal disappears, thereby achieving precise control of the fluid in the pipeline.
[0057] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0058] This document uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0059] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A gearbox gear oil filling and dispensing device, characterized in that, include: The gearbox (1) of the speed reducer has an opening at the bottom end connected to the oil filling and draining main pipe (2), the outlet of the oil filling and draining main pipe (2) is connected to the tee pipe, the first outlet of the tee pipe is connected to the oil draining main pipe (3), the second outlet of the tee pipe is connected to the oil filling main pipe (4), and the outlet ends of the oil draining main pipe (3) and the oil filling main pipe (4) are both connected to the oil collection port (5). The oil storage tank (6) has an upper opening and a lower opening connected to the refueling main pipe (4) via a first pipe (7) and a second pipe (71). The second pipe (71) is equipped with an oil pump (8) and is connected to the refueling main pipe (4). The second pipe (71) is also connected to a new oil pipe (9). The new oil pipe (9) is equipped with a new oil pump (10) and is connected to the oil draining main pipe (3) via a third pipe (11). An oil level gauge (12) is installed on the oil filling and draining header (2); The new oil pipeline (9) is equipped with a first solenoid valve (01), the second pipeline (71) is equipped with a second solenoid valve (02), the oil filling main pipe (4) is equipped with a third solenoid valve (03), a fifth solenoid valve (05), an eighth solenoid valve (08) and a check valve (13), the first pipeline (7) is equipped with a fourth solenoid valve (04), the oil drain main pipe (3) is equipped with a sixth solenoid valve (06) and a ninth solenoid valve (09), and the third pipeline (11) is equipped with a seventh solenoid valve (07).
2. The gearbox gear oil filling and dispensing device according to claim 1, characterized in that, The oil filling and discharging main pipe (2) is equipped with a matching oil filling hole (14).
3. The gearbox gear oil filling and dispensing device according to claim 2, characterized in that, The height of the oil storage tank (6) is higher than the height of the gearbox (1) of the reducer.
4. The gearbox gear oil filling and dispensing device according to claim 1, characterized in that, The oil pump (8) is a bidirectional gear pump or a screw pump.
5. A gearbox gear oil filling and dispensing device according to claim 1, characterized in that, The new oil pipeline (9) is equipped with a filter.
6. A gearbox gear oil filling and dispensing device according to claim 1, characterized in that, The oil level gauge (12) is an electronic liquid level sensor.
7. A gearbox gear oil filling and dispensing device according to claim 1, characterized in that, The oil collection port (5) is connected to the waste oil recovery device.
8. A gearbox gear oil filling and dispensing device according to claim 1, characterized in that, The first pipe (7), the second pipe (71), the third pipe (11), the refueling main pipe (4) and the draining main pipe (3) are all oil-resistant, pressure-resistant hoses or metal rigid pipes.