Airplane seat constraint system function and airtight testing bench

Abstract

The invention discloses an airplane seat constraint system function and airtight testing bench. The testing bench comprises a hanger, a hanging beam, a hanger rod, a bufferfly-like nut, a fixed pulley and a support, wherein the fixed pulley is fixed on the upper end of the support, one end of the hanging beam is hinged to the support through a connection assembly, the hanger is installed at the upper portion of one end, closer to the support, of the hanging beam, the hanger rod is disposed at one end, closer to the support, on the hanging beam, the hanger rod is connected with the hanging beam through the bufferfly-like nut, and the lower end of the hanger rod is suspended with a counterweight. The airplane seat constraint system function and airtight testing bench has the advantages of reasonable structural design, convenient application and the like, can rapidly and accurately realize airplane seat test requirements, is low in fault rate and convenient to operate, greatly improves the airplane seat repair efficiency, saves enormous production time, gets rid of restrictions of air pressure, hydraulic pressure and motor parts, is safe and environmentally friendly and can stably carry out product function examination.

Description

technical field [0001] The invention relates to the technical field of repairing aviation accessories, in particular to an aircraft seat restraint system function and airtight test bench. Background technique [0002] After the aircraft seat is repaired and assembled, it is necessary to conduct functional and sealing tests such as the seat restraint system to verify the working performance and reliability of the entire product. Among them, in order to verify the performance of the leg tension rope and the reliability of the matching ball lock, it is necessary to add a load of 1176N to each process cylinder through the tension rope for 3 minutes. In addition, it is necessary to increase the load on the shoulder belt to check the working ability of the shoulder belt tensioning device. During the inspection, it is necessary to adjust the length of the shoulder belt several times, and add it to the belt within 10 to 20 seconds. Force, keep for 5-8s. [0003] The early test eq...

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Problems solved by technology

[0003] The early test equipment was manufactured according to the drawings imported from Ukraine, and the loading method was winch loading. During the above two tests, there were the following problems: 1. The seat leg straps and shoulder straps are made of textiles. The internal deformation of the winch leads to insufficient supply of winch tension, and the force value on the sensor declines significantly; 2. Due to the space limitation in the design of the test bench, it is difficult for the winch to reach the specified force value range within 10-20 seconds, combined with multiple adjustments of the shoulder strap Length inspection requirements, this structure is a serious waste of physical strength of workers, low work efficiency

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