Airplane cabin door opening torque testing device

Abstract

The invention provides an airplane cabin door opening torque testing device, which comprises a fixture, a torque sensor, a universal joint transmission shaft, a driving device, a control box and a lifting platform, wherein the control box and the driving device are fixed on the fixture, the driving device is connected with the fixture through the universal joint transmission shaft and the torque sensor sequentially, the fixture is connected with an airplane cabin door, the fixture, the torque sensor and the universal joint transmission shaft are coaxial, the torque sensor is a double-flange torque sensor of which both ends are of flange-type structures, one end of the torque sensor is connected with a screw hole of the fixture by a screw, the other end of the torque sensor is connected with a through hole in the universal joint transmission shaft by a bolt, and a power supply module and a converter of the torque sensor are installed in the control box. The torque sensor is in a doubleflange type, on the one hand, the size is small, the weight is light, no base is needed, and the installation and use are convenient, and on the other hand, the detection accuracy is high, the stability is good, and the anti-interference ability is strong. The airplane cabin door opening torque testing device has the advantages of high automation degree, high precision and good stability.

Description

technical field [0001] The invention relates to the field, in particular to an aircraft door opening torque test device. Background technique [0002] At present, the test of the opening torque of the aircraft door mostly adopts a canvas tape wrapped around the end of the handle, such as figure 1 As shown, make the canvas belt as evenly distributed as possible and point perpendicular to the handle, glue the load sensor at the end of the canvas belt, and install a component for easy force application at the end of the load sensor, manually pull the force application part and make the force application direction as close as possible to the handle Vertically, the handle force is read by a dynamic recorder, and the handle force multiplied by the upper moment arm is the opening torque. The disadvantages of this method are that first, the degree of automation is low and manual operation is required; second, the stability is poor, because of human factors, the direction of force a...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are that first, the degree of automation is low and manual operation is required; second, the stability is poor, because of human factors, the direction of force application cannot always be determined perpendicular to the handle, and its accuracy is low and repeatability is poor; third, it is in the cabin. In the case of residual pressure, the operation in the cabin is dangerous and the degree of automation is low

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