Intelligent thin oil lubrication system provided with multiple pump control systems and used for gearbox testing

Abstract

The utility model discloses an intelligent thin oil lubrication system with a plurality of pump control systems for testing a gearbox. An oil tank is connected with a plurality of groups of oil supply systems and oil return systems; each oil supply system is provided with two oil supply pumps connected in parallel, filters are connected behind the oil supply pumps, water coolers are connected behind the filters, the water coolers are communicated with oil ways of oil supply ports of the speed reducers, mixed flow valves are arranged at outlet ends of the water coolers, and the mixed flow valves are connected with inlet ends of the water coolers through mixed flow oil ways. Each oil return system comprises two oil return pumps connected in parallel, inlets of the oil return pumps are connected with an oil path from an oil outlet of the reduction gearbox, filters are connected behind the oil return pumps, and the filters are communicated with an oil return path towards the oil tank; an oil return temperature sensor is arranged on an oil way from an oil outlet of the reduction gearbox; a standby high-level oil tank is arranged above the speed reducer and connected with an oil supply port of the speed reducer through a pneumatic valve. The oil temperature and oil pressure are stable, the lubricating performance is improved, and the emergency oil supply function is achieved.

Description

Technical Field

[0001] This utility model relates to an intelligent thin oil lubrication system for gearbox testing. Background Technology

[0002] Gearboxes are crucial components in mechanical transmissions and are widely used in various types of machinery. For gearbox manufacturers, the variety and power of gearboxes are increasing. Choosing a lubrication testing system with a wide adjustable flow range undoubtedly reduces the system's footprint and operating costs. Gearbox lubrication testing collects data such as pressure, flow rate, and temperature, which is essential for determining the required lubrication parameters, ensuring normal operation, and extending the gearbox's service life. Existing intelligent thin oil lubrication systems for gearbox testing have shortcomings in oil temperature control and emergency oil supply, requiring further improvement. Summary of the Invention

[0003] The purpose of this invention is to provide an intelligent thin oil lubrication system for gearbox testing that achieves stable oil pressure and has multiple pump control systems.

[0004] The technical solution of this utility model is:

[0005] An intelligent thin oil lubrication system for gearbox testing with multiple pump control systems includes an oil tank, characterized in that: the oil tank is connected to multiple sets of oil supply systems and oil return systems; each oil supply system has two parallel oil supply pumps, one in use and one on standby, with a filter connected after the oil supply pump, a water cooler connected after the filter, and an oil circuit leading to the oil supply port of the reducer after the water cooler; a mixing valve is provided at the outlet end of the water cooler, and the mixing valve is connected to the inlet end of the water cooler through a mixing oil circuit; each oil return system includes two parallel oil return pumps, the inlet of which is connected to an oil circuit from the oil outlet of the reducer, a filter connected after the oil return pump, and an oil return circuit leading to the oil tank after the filter; an oil return temperature sensor is provided on the oil circuit from the oil outlet of the reducer; a spare high-level oil tank is provided above the reducer, and the high-level oil tank is connected to the oil supply port of the reducer through a pneumatic valve.

[0006] A temperature sensor is installed at the outlet of the water cooler.

[0007] This utility model's lubrication system employs a water-cooling system. To adapt to changes in the factory's water-cooling environment, precise control of the lubricating oil temperature is achieved through a closed-loop control system using an oil supply temperature sensor to detect the supply temperature and a closed-loop control system using a two-way regulating valve to control the cooling water flow or a closed-loop control system using a three-way mixing valve to control the ratio of hot and cold media. The lubrication system is also equipped with a return oil temperature detection sensor. By detecting the supply oil temperature, supply oil flow rate, and return oil temperature, the heat generation power of the gearbox can be estimated.

[0008] The lubrication system is equipped with an emergency oil supply tank and UPS power supply. In the event of a failure of the oil supply pump or a sudden power outage during testing, the pneumatic valve of the high-level oil tank can ensure operation, maintaining oil supply and lubrication during the idle period of the main unit, thus protecting the main unit. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 This is a structural schematic diagram of one embodiment of the present invention. Detailed Implementation

[0011] An intelligent thin oil lubrication system for gearbox testing with multiple pump control systems includes an oil tank 1, which is connected to multiple oil supply and return systems. Each oil supply system has two parallel oil supply pumps 2, one in use and one on standby. A filter 3 is connected after the oil supply pump, followed by a water cooler 4. An oil circuit leading to the reducer's oil supply port is connected after the water cooler. A mixing valve 6 is installed at the water cooler outlet, connected to the water cooler inlet via a mixing oil circuit 7. A temperature sensor 8 is installed at the water cooler outlet. Each return system includes two parallel return oil pumps 9, whose inlets are connected to an oil circuit from the reducer's outlet 10. A filter 11 is connected after the return oil pump, followed by a return oil circuit 12 leading to the oil tank. A return oil temperature sensor 5 is installed on the oil circuit from the reducer's outlet. A spare high-level oil tank 13 is located above the reducer, connected to the reducer's oil supply port via a pneumatic valve 14.

[0012] Application scope: Mainly used for factory testing by gearbox or bearing manufacturers.

Claims

1. A smart thin oil lubrication system for gearbox testing with multiple pump control systems, comprising an oil tank, characterized in that: The oil tank is connected to multiple oil supply and return systems. Each oil supply system has two parallel oil supply pumps, one in use and one on standby. After the oil supply pump, a filter is connected, after the filter, a water cooler is connected, and after the water cooler, an oil line leads to the oil supply port of the reducer. A mixing valve is installed at the outlet of the water cooler, and the mixing valve is connected to the inlet of the water cooler through a mixing oil line. Each oil return system includes two parallel oil return pumps. The inlet of the oil return pump is connected to the oil line from the oil outlet of the reducer. After the oil return pump, a filter is connected, and after the filter, an oil return line leads to the oil tank. An oil return temperature sensor is installed on the oil line from the oil outlet of the reducer. A spare high-level oil tank is installed above the reducer, and the high-level oil tank is connected to the oil supply port of the reducer through a pneumatic valve.

2. The intelligent thin oil lubrication system for gearbox testing with multiple pump control systems according to claim 1, comprising an oil tank, characterized in that: A temperature sensor is installed at the outlet of the water cooler.

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