A speed torque thrust test device

Abstract

The invention discloses a rotational speed torque thrust test device. The central axis of the front end of the torque test sensor of the device is connected to a main shaft, the front part of the main shaft is fixed with an impeller assembly to be tested, and the main shaft between the impeller assembly to be tested and the test assembly is fixed on the main shaft There is a bearing assembly. The front part of the bearing assembly and the impeller assembly to be tested are located in the water tunnel. The rear part of the rotational speed and torque test sensor is coaxially arranged with a thrust shaft. The end of the thrust shaft is in contact with the thrust sensor, and the motor is connected by a timing belt assembly. Between the speed and torque test sensor and the thrust shaft, it is used to rotate the speed and torque test sensor and drive the main shaft and the impeller assembly to be tested to rotate. The invention can simultaneously detect the rotational speed torque and thrust, and output the rotational speed torque and thrust of the impeller in real time, so that the data is more convenient and accurate, and the equipment occupies a small space. The activity breaks the inaccurate situation of traditional thrust test and improves the accuracy of thrust test.

Description

technical field [0001] The invention relates to the field of impeller testing, in particular to a rotational speed torque thrust testing device. Background technique [0002] At present, axial flow impellers are widely used in pump-jet propellers, propellers, water pumps, assault boats, and rocket launches. The high-speed rotation of the impeller generates huge thrust, which is widely used in chemical, shipbuilding, and military fields. For different fields, the speed, torque and thrust requirements of various impellers are often very high, but the current technology is difficult to measure these three parameters at the same time, and it is impossible to output the speed torque and thrust data in real time in the same chart. [0003] The existing impeller test has to pass two testing equipments, namely the rotational speed torque testing equipment and the thrust testing equipment. At the same time, the existing thrust test device fixes the thrust sensor on the central rota...

AI Technical Summary

Problems solved by technology

For different fields, the speed, torque and thrust requirements of various impellers are often very high, but the current technology is difficult to measure these three parameters at the same time, and it is impossible to output the speed, torque and thrust data in the same chart in real time

[0003] Existing impeller testing needs to pass through two testing equipment, that is, speed torque testing equipment and thrust testing equipment. The two testing procedures are cumbersome and need to be tested separately, which may easily lead to inaccurate data.

At the same time, the existing thrust test device fixes the thrust sensor on the central shaft, which will damage the strength of the shaft, and the measurement range and accuracy are limited. The measured thrust often has a large deviation, and repeated tests and data calibration are required. Obtain relatively accurate data, and its detection accuracy is low

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