Through-flow type static pressure dynamic force gauge

Abstract

The invention relates to a tubular hydrostatic dynamic dynamometer. A hydraulic turbine runner is fastened on a horizontal shaft through bolts; the hydraulic turbine runner is connected with the horizontal shaft through a flat key, so as to transmit torque; the horizontal shaft is supported through a front-rear mechanical bearing; the front-rear mechanical bearing is fixed in the dynamic sleeve of a hydrostatic bearing; the rear end of the horizontal shaft is connected with bevel gears; the bevel gears are fixed through the flat key and the bolts, and mesh with each other; the other end of a power measuring arm is connected with a counterweight; the dynamic sleeve of the hydrostatic bearing is suspended on the static sleeve of the hydrostatic bearing, and an oil cavity between the static sleeve and the dynamic sleeve of the hydrostatic bearing is connected with an oil supply device; a vertical shaft is fastened with the bevel gears through the bolts, and the lower end of the vertical shaft is fastened with the dynamic sleeve of the hydrostatic bearing through the bolts. The hydrostatic dynamic dynamometer has the advantages that the change of horizontal force to vertical force can be achieved; a small amount of friction force hermetically generated due to the mechanical bearing and a main shaft is conducted accurately; a passage is used for reasonably solving the problems of the static oil and the leaking water of a seal; the power loss in the transmission process is reduced; the efficiency of equipment power transmission is enhanced; and the equipment processing accuracy is improved.

Description

technical field [0001] The invention relates to a through-flow static pressure dynamic dynamometer. Background technique [0002] In my country's hydropower industry, tubular hydroelectric generating units are widely used, but at present the core technology of hydraulic turbine runners does not have its own technical intellectual property rights, and they must be purchased from foreign companies. Due to the absence of high-performance power testing equipment, the hydraulic performance development and research of tubular turbines in my country cannot be carried out. In the past, we also tried to use existing technologies and equipment for testing, such as using torque meters, mechanical bearing transmission, etc., either because the equipment was unstable or the accuracy was poor, but they could not meet the needs, and the results all ended in failure. Foreign companies have some similar technical equipment in this field, but foreign companies have a strict technical blockad...

AI Technical Summary

Problems solved by technology

[0002] In my country's hydropower industry, tubular hydroelectric generating units are widely used, but the current core technology of hydraulic turbine runners does not have its own technical intellectual property rights, and they must be purchased from foreign companies

Due to the absence of high-performance power testing equipment, the hydraulic performance development and research of tubular turbines in my country cannot be carried out

In the past, we also tried to test with existing technologies and equipment, such as using torque meters, mechanical bearing transmission, etc., either because the equipment was unstable or the accuracy was poor, but they could not meet the needs, and the results all ended in failure.

Foreign companies have some similar technical equipment in this field, but foreign companies have a strict technical blockade against our country, so they cannot understand

Images