Supporting device capable of achieving rapid and continuous change of angle and bearing large load

Abstract

The invention relates to a supporting device capable of achieving rapid and continuous change of an angle and bearing a large load. The supporting device capable of achieving rapid and continuous change of the angle and bearing the large load is composed of an upper platform and a lower platform, wherein the upper platform is movable and moves along with an engine test article during a test, the lower platform is fixed and is connected with an installation base, the upper platform and the lower platform are connected through a rotary shaft device, arc-shaped guide rail devices and a driving device, the rotary shaft device is installed between one side of the upper platform and one side of the lower platform, the driving device is installed between the other side of the upper platform and the other side of the lower platform, and the upper platform rotates relative to the lower platform around the rotary shaft; an angle sensor is installed at one end of the rotary shaft so that angle detection can be achieved easily; the arc-shaped guide rail devices are installed on the two sides of the upper platform and the lower platform and can limit the moving trajectory of the upper platform and bear the load in the horizontal direction. The driving device is formed by combining two electric cylinders and a high-power servo motor, large pushing force can be provided, and rapid and accurate positioning of an angle can be achieved.

Description

technical field [0001] The invention is used in the ground test drive test of aerospace engines under high-altitude environment and high Mach number conditions. Background technique [0002] The invention relates to a variable-angle supporting device for a ground test drive test of an aerospace engine. Due to the limitation of the working characteristics of the engine and the test conditions, the test time of the aerospace engine on the ground is generally very short, and the engine is mostly tested in a horizontal position, and a small number of tests with angles are also realized by the pre-bias device. One test run The test can only measure the data under one angle state. With the development of engine development technology, the load of the engine test is getting larger and larger, and the demand for test data is also increasing. The test with yaw angle state brings a large side load, so The current test support device can no longer meet the development requirements of...

AI Technical Summary

Problems solved by technology

Due to the limitation of the working characteristics of the engine and the test conditions, the test time of the aerospace engine on the ground is generally very short, and the engine is mostly tested in a horizontal position, and a small number of tests with angles are also realized by the pre-bias device. One test run The test can only measure data at one angle

With the development of engine development technology, the load of the engine test is getting larger and larger, and the demand for test data is also increasing. The test with yaw angle state brings a large side load, so The current test support device can no longer meet the development requirements of the engine, and it is necessary to develop a fast and continuously variable angle support device that can withstand large loads as the test equipment for the engine test run

There is no public report of similar continuously variable angle devices in China, and there are few reports of such test devices in foreign countries, and no relevant information has been found.

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