Intelligent thin oil lubrication system for gearbox test

Abstract

The utility model discloses an intelligent thin oil lubrication system 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 leading to oil supply ports of the speed reducers, oil supply pressure transmitters are arranged on the oil ways leading to the oil supply ports of the speed reducers, and mixed flow valves are arranged at outlet ends of the water coolers. The mixed flow valve is connected with the inlet end of the water cooler through a mixed flow oil way; each oil return system comprises two oil return pumps connected in parallel, inlets of the oil return pumps are connected with an oil way from an oil outlet of the reduction gearbox, a filter is connected behind the oil return pumps, and the filter is communicated with an oil return way towards the oil tank. The oil temperature is stable, the oil pressure is stable, and the lubricating performance is improved.

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 controlling oil temperature and pressure, 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 temperature and pressure, and improves lubrication performance.

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

[0005] An intelligent thin oil lubrication system for gearbox testing includes an oil tank, characterized in that: the oil tank is connected to multiple 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 passage leading to the reducer's oil supply port connected after the water cooler; an oil supply pressure transmitter is installed on the oil passage leading to the reducer's oil supply port, and a mixing valve is installed at the outlet end of the water cooler, the mixing valve being connected to the inlet end of the water cooler through a mixing oil passage; each oil return system includes two parallel oil return pumps, the inlet of which is connected to an oil passage from the reducer's oil outlet, a filter connected after the oil return pump, and an oil return passage leading to the oil tank connected after the filter.

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

[0007] This utility model's lubrication system employs a pump control system composed of a variable frequency motor and a fixed displacement oil pump to achieve real-time adjustment of the test flow rate. A flow sensor detects the real-time flow rate, and closed-loop control of the variable frequency motor speed improves the accuracy of the oil supply flow. A single lubrication system can expand the flow regulation range by connecting multiple pump control systems in parallel. The lubrication system uses a water-cooling system. To adapt to changes in the factory's water-cooling environment, a supply oil temperature sensor detects the temperature, and a closed-loop control of a two-way regulating valve controls the cooling water flow, or a closed-loop control of a three-way mixing valve controls the ratio of hot and cold media to achieve precise control of the lubricating oil temperature. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a structural schematic diagram of one embodiment of the present invention. Detailed Implementation

[0010] An intelligent thin oil lubrication system for gearbox testing 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 operation and one on standby. A filter 3 is connected after each oil supply pump, followed by a water cooler 4. An oil passage leading to the reducer's oil supply port is connected after the water cooler. An oil supply pressure transmitter 5 is installed on the oil passage leading to the reducer's oil supply port. A mixing valve 6 is installed at the water cooler's outlet, connected to the water cooler's inlet via a mixing oil passage 7. A temperature sensor 8 is installed at the water cooler's outlet. Each return system includes two parallel return oil pumps 9, whose inlets are connected to an oil passage from the reducer's outlet 10. A filter 11 is connected after each return oil pump, followed by a return oil passage 12 leading to the oil tank.

[0011] Application scope: Mainly used for factory testing by gearbox or bearing manufacturers.

Claims

1. An intelligent oil lubrication system for gear box testing comprising an oil tank characterized by: The oil tank is connected with multiple oil supply systems and oil return systems; each oil supply system has two parallel oil supply pumps, one in use and one in standby, the oil supply pump is connected with a filter, the filter is connected with a water cooler, the water cooler is connected with an oil path leading to the oil supply port of the speed reducer, an oil supply pressure transmitter is arranged on the oil path leading to the oil supply port of the speed reducer, a mixing valve is arranged at the outlet end of the water cooler, and the mixing valve is connected with the inlet end of the water cooler through a mixing oil path; each oil return system includes two parallel oil return pumps, the inlet of the oil return pump is connected with an oil path from the oil outlet of the speed reducer, the oil return pump is connected with a filter, and the filter is connected with an oil return oil path leading to the oil tank.

2. The intelligent oil lubrication system for gearbox testing according to claim 1, comprising an oil tank, characterized in that: A temperature sensor is arranged at the outlet end of the water cooler.

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