Test device for testing performance of water lubricated bearing in real environment

Abstract

The invention belongs to the technical field of test devices, and discloses a test device for testing performance of a water-lubricated bearing in a real environment. The test device comprises a loadsimulation module, a test shaft, a test water lubricated bearing, an environment simulation module and a measurement module, wherein the load simulation module comprises a torque output unit, a longitudinal load output unit and a lateral load output unit; the environment simulation module comprises a water circulation unit and a water flow control unit; the test shaft passes through the water circulation unit, and the measurement module is used to measure rotation speed and displacement of the test shaft and load and internal pressure distribution of the test water lubricated bearing. The testdevice of the invention can effectively simulate a real environment and a loading condition of the test water lubricated bearing during working. By the test device, the improvement on accuracy and practicability of design of the water-lubricated bearing can be achieved in case of inadequate consideration on different environmental factors during design of the water lubricated bearing.

Description

technical field [0001] The invention belongs to the technical field of test devices, and more particularly relates to a test device for testing the performance of water-lubricated bearings in real environments. Background technique [0002] Water-lubricated bearings are a kind of bearings that use water as a lubricating medium. Compared with oil-lubricated bearings, they have the advantages of no pollution, simple structure, and small friction coefficient under high-speed conditions. They are more and more widely used in ship shafting . Water-lubricated bearings use the flow of water to take away the heat of friction. When the working speed of the shaft reaches a certain condition, a layer of water film is formed to further reduce friction. [0003] Chinese patent CN201811203430 discloses a water-lubricated bearing performance test device, which includes a base on which a servo motor, a transmission device, a driven device and a water tank are installed, and a drive pulley ...

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Problems solved by technology

However, the structure of the device is complicated, and the water circulation method used in the test bearing is forced water lubrication, which does not realize the simulation of real factors such as water quality and incoming flow velocity. At the same time, the pressure distribution test method of the device is to strain The pressure sensor is arranged between the outer wall of the stern bearing and the stern bearing support along the axial direction of the bearing, so it is difficult to accurately measure the real uneven distribution pressure in the bearing

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