Novel lubrication system for a constant velocity reducer

Abstract

The utility model relates to a novel steady voltage speed reducer lubricating system belongs to mechanical transmission equipment lubricating technical field. Through the synergic control of two pressure regulating valves, ensure that the speed reducer lubricating system pressure is accurate and stable. Simple and practical structure can realize pressure closed loop control further optimization dynamic pressure stability, easily applies in petroleum chemical industry large -scale speed reducer lubricating system.

Description

Technical Field

[0001] This utility model relates to a novel lubrication system for a voltage regulator reducer, belonging to the field of lubrication technology for mechanical transmission equipment. Background Technology

[0002] Speed ​​reducers are critical components in industrial transmission systems, and the reliable lubrication of their rotating parts, such as bearings and gears, directly affects the equipment's lifespan and operational stability. Traditional lubrication systems often use a single oil pump for oil supply, along with components such as coolers and oil filters. However, when oil viscosity changes, the oil filter becomes clogged, or the system load fluctuates, the system pressure is difficult to maintain, potentially leading to insufficient lubrication or seal failure. While some existing technologies employ pressure regulating valves, these are mostly located at a single point (such as the pump outlet) and cannot fully compensate for system pressure losses, especially when the oil filter becomes clogged, resulting in a significant decrease in pressure stability. Utility Model Content

[0003] The purpose of this invention is to provide a novel pressure-stabilized reducer lubrication system that solves the problem of large pressure fluctuations in existing lubrication systems by using the coordinated control of dual pressure regulating valves, thereby ensuring the stability of the reducer lubrication system pressure.

[0004] According to one aspect of this application, a novel pressure-regulating reducer lubrication system is provided, comprising an oil tank 1, a main oil pump 2, a backup oil pump 3, a first pressure regulating valve 4, a temperature control valve 5, a cooler 6, a differential pressure sensor 7, an oil filter 8, a second pressure regulating valve 9, a pressure sensor 10, a temperature sensor 11, and a reducer 12.

[0005] The system uses dual pressure regulating valves for coordinated control. The first pressure regulating valve 4 stabilizes the pump outlet pressure, while the second pressure regulating valve 9 detects and automatically adjusts its opening to ensure a constant oil supply pressure after the oil filter 8. This enables closed-loop pressure control and further optimizes dynamic pressure stability.

[0006] The main oil pump 2 and the standby oil pump 3 are connected in parallel, one in use and one on standby, and are operated alternately through electrical control. Both the main oil pump 2 and the standby oil pump 3 are fixed displacement pumps with a rated flow rate 20% higher than the required flow rate of the system.

[0007] The outlet pipes of the main oil pump 2 and the standby oil pump 3 are connected to the inlet of the cooler 6, the outlet of the cooler 6 is connected to the inlet of the oil filter 8, and the outlet of the oil filter 8 leads to the lubrication point of the reducer 12.

[0008] The first pressure regulating valve 4 and the second pressure regulating valve 9 are both self-operated pressure regulating valves.

[0009] The first pressure regulating valve 4 is installed on the pipeline between the outlet of the main oil pump 2 and the standby oil pump 3 and the cooler 6 to stabilize the pump output pressure;

[0010] The second pressure regulating valve 9 is installed on the pipeline between the outlet of the oil filter 8 and the reducer 12 to compensate for the flow and ensure that the oil pressure entering the reducer 12 is constant.

[0011] The first pressure regulating valve 4 is a pilot-operated relief valve, and its set pressure is 10-15% higher than the system's rated working pressure.

[0012] The second pressure regulating valve 9 is a direct-acting proportional regulating valve, and its set pressure is consistent with the system's rated working pressure.

[0013] The temperature control valve 5 controls the lubricating oil to not pass through the cooler 6 at low temperatures and to pass through the cooler 6 at high temperatures.

[0014] The oil filter 8 is connected in parallel with the differential pressure sensor 7 at both the inlet and outlet ends. When the oil filter 8 is blocked and the differential pressure exceeds the standard, the differential pressure sensor 7 will issue an alarm signal.

[0015] The pressure sensor 10 and temperature sensor 11 are located in the outlet pipeline of the oil filter 8. When the system pressure and temperature exceed the set values, an alarm signal is issued.

[0016] The advantages of this application are as follows: The novel pressure-stabilizing reducer lubrication system of this application ensures precise and stable pressure in the reducer lubrication system through the coordinated control of two pressure regulating valves. It has a simple and practical structure, enables closed-loop pressure control to further optimize dynamic pressure stability, and is easily applied in the lubrication systems of large reducers in the petrochemical industry. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the lubrication system for a new type of voltage-stabilized reducer.

[0018] The components include: 1. Oil tank; 2. Main oil pump; 3. Backup oil pump; 4. First pressure regulating valve; 5. Temperature control valve; 6. Cooler; 7. Differential pressure sensor; 8. Oil filter; 9. Second pressure regulating valve; 10. Pressure sensor; 11. Temperature sensor; and 12. Reducer. Detailed Implementation

[0019] The present application is described in detail below with reference to the embodiments, but the present application is not limited to these embodiments.

[0020] Example 1

[0021] A novel pressure-regulating reducer lubrication system includes an oil tank 1, a main oil pump 2, a backup oil pump 3, a first pressure regulating valve 4, a temperature control valve 5, a cooler 6, a differential pressure sensor 7, an oil filter 8, a second pressure regulating valve 9, a pressure sensor 10, a temperature sensor 11, and a reducer 12.

[0022] The system uses dual pressure regulating valves for coordinated control. The first pressure regulating valve 4 stabilizes the pump outlet pressure, while the second pressure regulating valve 9 detects and automatically adjusts its opening to ensure a constant oil supply pressure after the oil filter 8. This enables closed-loop pressure control and further optimizes dynamic pressure stability.

[0023] The main oil pump 2 and the standby oil pump 3 are connected in parallel, one in use and one on standby, and are operated alternately through electrical control. Both the main oil pump 2 and the standby oil pump 3 are fixed displacement pumps with a rated flow rate 20% higher than the required flow rate of the system.

[0024] The outlet pipes of the main oil pump 2 and the standby oil pump 3 are connected to the inlet of the cooler 6, the outlet of the cooler 6 is connected to the inlet of the oil filter 8, and the outlet of the oil filter 8 leads to the lubrication point of the reducer 12.

[0025] The first pressure regulating valve 4 and the second pressure regulating valve 9 are both self-operated pressure regulating valves.

[0026] The first pressure regulating valve 4 is installed on the pipeline between the outlet of the main oil pump 2 and the standby oil pump 3 and the cooler 6 to stabilize the pump output pressure;

[0027] The second pressure regulating valve 9 is installed on the pipeline between the outlet of the oil filter 8 and the reducer 12 to compensate for the flow and ensure that the oil pressure entering the reducer 12 is constant.

[0028] The first pressure regulating valve 4 is a pilot-operated relief valve, and its set pressure is 10-15% higher than the system's rated working pressure.

[0029] The second pressure regulating valve 9 is a direct-acting proportional regulating valve, and its set pressure is consistent with the system's rated working pressure.

[0030] The temperature control valve 5 controls the lubricating oil to not pass through the cooler 6 at low temperatures and to pass through the cooler 6 at high temperatures.

[0031] The oil filter 8 is connected in parallel with the differential pressure sensor 7 at both the inlet and outlet ends. When the oil filter 8 is blocked and the differential pressure exceeds the standard, the differential pressure sensor 7 will issue an alarm signal.

[0032] The pressure sensor 10 and temperature sensor 11 are located in the outlet pipeline of the oil filter 8. When the system pressure and temperature exceed the set values, an alarm signal is issued.

[0033] like Figure 1As shown, lubricating oil is drawn from oil tank 1 through main oil pump 2 (or standby oil pump 3), and the pump outlet pressure is stabilized to a set value (e.g., 0.6 MPa) by the first pressure regulating valve 4. The oil is controlled by temperature control valve 5; at low temperatures, it bypasses cooler 6, and at high temperatures, it is cooled by cooler 6 before entering oil filter 8. If the oil filter becomes clogged, causing a pressure difference increase, differential pressure sensor 7 will issue an alarm. The filtered oil is then further pressure-regulated by the second pressure regulating valve 9, precisely adjusting the pressure to the required value for the reducer (e.g., 0.2 MPa), and finally enters reducer 12 to lubricate the bearings and gears. Pressure sensor 10 monitors the filtered pressure in real time, and temperature sensor 11 monitors the filtered oil temperature in real time. The second pressure regulating valve 8 automatically adjusts its opening based on the detected filtered pressure, achieving closed-loop pressure control.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any modifications or substitutions made by those skilled in the art within the scope of the technology disclosed in this application should be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A novel lubrication system for a voltage-stabilized reducer, characterized in that, Includes oil tank (1), main oil pump (2), standby oil pump (3), first pressure regulating valve (4), temperature control valve (5), cooler (6), differential pressure sensor (7), oil filter (8), second pressure regulating valve (9), pressure sensor (10), temperature sensor (11), and reducer (12). The system is controlled by two pressure regulating valves. The first pressure regulating valve (4) stabilizes the pump outlet pressure, and the second pressure regulating valve (9) detects and automatically adjusts the opening to ensure that the oil supply pressure after the oil filter (8) is constant. This can achieve pressure closed-loop control and further optimize dynamic pressure stability.

2. The novel voltage-stabilized reducer lubrication system according to claim 1, characterized in that, The main oil pump (2) and the standby oil pump (3) are connected in parallel, one in use and one on standby, and are operated alternately through electrical control. Both the main oil pump (2) and the standby oil pump (3) are fixed displacement pumps with a rated flow rate 20% higher than the required flow rate of the system.

3. The novel voltage-stabilized reducer lubrication system according to claim 2, characterized in that, The outlet pipes of the main oil pump (2) and the standby oil pump (3) are connected to the inlet of the cooler (6), the outlet of the cooler (6) is connected to the inlet of the oil filter (8), and the outlet of the oil filter (8) leads to the lubrication point of the reducer (12).

4. The novel voltage-stabilized reducer lubrication system according to claim 3, characterized in that, Both the first pressure regulating valve (4) and the second pressure regulating valve (9) are self-operated pressure regulating valves. The first pressure regulating valve (4) is installed on the pipeline between the outlet of the main oil pump (2) and the standby oil pump (3) and the cooler (6) to stabilize the pump output pressure; The second pressure regulating valve (9) is installed on the pipeline between the outlet of the oil filter (8) and the reducer (12) to compensate for the flow and ensure that the oil pressure entering the reducer (12) is constant.

5. The novel voltage-stabilized reducer lubrication system according to claim 4, characterized in that, The first pressure regulating valve (4) is a pilot-operated relief valve, and its set pressure is 10-15% higher than the system's rated working pressure; The second pressure regulating valve (9) is a direct-acting proportional regulating valve, and its set pressure is consistent with the rated working pressure of the system.

6. The novel voltage-stabilized reducer lubrication system according to claim 5, characterized in that, The temperature control valve (5) controls the lubricating oil to not pass through the cooler (6) at low temperatures and to pass through the cooler (6) at high temperatures.

7. The novel voltage-stabilizing reducer lubrication system according to claim 6, characterized in that, The oil filter (8) has a differential pressure sensor (7) connected in parallel at both the inlet and outlet ends. When the oil filter (8) is blocked and the differential pressure exceeds the standard, the differential pressure sensor (7) will issue an alarm signal.

8. The novel voltage-stabilized reducer lubrication system according to claim 7, characterized in that, The pressure sensor (10) and temperature sensor (11) are located in the outlet pipeline of the oil filter (8). When the system pressure and temperature exceed the set values, an alarm signal is issued.

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