Large-sized vane static test system

Abstract

The invention discloses a large-sized vane static test system. The large-sized vane static test system includes a test bench which is used for carrying a vane to be tested, fixtures which are arranged on loading points of the vane to be tested and are uniformly distributed along the length direction of the vane to be tested, force sensors which are arranged below the fixtures and are located below the vane to be tested, pulley blocks which are connected with the force sensors, force output sources which are connected with winding ropes in the pulley blocks, and a controller which is electrically connected with the force sensors and the force output sources. With the large-sized vane static test system composed of the test bench, the fixtures, the force sensors, the pulley blocks, the force output sources and the controller adopted, automatic loading of a load can be realized, manpower investment and other hardware investment can be decreased, and cost can be reduced; the loading of the load is more accurate and more efficient, and the vane will not be tested in an overload state in testing.

Description

technical field [0001] The invention belongs to the field of static or dynamic balance testing of mechanical or structural components, in particular to a large blade static testing system. Background technique [0002] At present, cranes are often used to apply loads for large-scale blade static tests. Multiple cranes are respectively parked on the loading points of the test blades. Each crane hooks an electronic scale connected to a fixture through a hook, and the fixture holds the blade. Once the test begins, the force transducers transfer the load to the fixture and then through the fixture to the blade. Each crane completes its own load independently during the loading process, but it needs to be loaded simultaneously under the command of external commanders. As we all know, cranes are mainly used for hoisting in engineering, and their disadvantages are that it is difficult to control the accuracy of loading loads, and it is difficult to cooperate with each loading poin...

AI Technical Summary

Problems solved by technology

Each crane completes its own load independently during the loading process, but it needs to be loaded at the same time under the command of external commanders

As we all know, the crane is mainly used for hoisting in engineering, and its disadvantage is that it is difficult to control the accuracy of the loading load, and it is difficult to coordinate the operation of each loading point

In addition, the rental cost of an ordinary 30t crane for 8 hours per day is about 3,000 to 5,000 yuan. Generally, at least 4 cranes are required for the test, so the rental cost of the crane is about 20,000 yuan. If the local market cranes are in short supply, the rental fee will increase Higher, resulting in a sudden increase in test costs

Furthermore, crane loading requires special personnel to command and coordinate to ensure that all cranes are loaded at the same time, and these personnel cannot record the load value loaded in the test. For this reason, it is necessary to equip special personnel to record the load data, which virtually increases the labor cost.

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