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CN-122009521-A - Fault ground test device for flap slide rail mechanism of airplane

CN122009521ACN 122009521 ACN122009521 ACN 122009521ACN-122009521-A

Abstract

The application belongs to the technical field of fault ground test design of an airplane flap slide rail mechanism, and particularly relates to a fault ground test device of an airplane flap slide rail mechanism. The support frame is the support structure of the whole test device, the supporting connection structure and the load loading mechanism are connected to the support frame and connected to the slide rail mechanism test piece, and support and load loading are provided for the slide rail mechanism test piece.

Inventors

  • CHEN XIANMIN
  • Zhuo Die
  • LI SANYUAN
  • YUAN XINFENG
  • LI CHEN

Assignees

  • 中国飞机强度研究所

Dates

Publication Date
20260512
Application Date
20260330

Claims (7)

  1. 1. The ground fault test device for the flap slide rail mechanism of the airplane is characterized by comprising a supporting frame (1), a supporting connection structure (2), a load loading mechanism (3) and a slide rail mechanism test piece (4); the supporting frame (1) comprises a supporting vertical beam (11), a supporting bottom frame (12) and a loading supporting beam (13); The support vertical beams (11) are provided with two pairs, the root parts are connected with the two ends of the supporting bottom frame (12); The loading support beams (13) are vertically arranged in three pairs, and two ends of the loading support beams are connected to the two pairs of vertical support beams (11); the support connecting structure (2) comprises a support vertical beam (21), a support cross beam (22), a box section connecting beam (23), a support connecting box section (24) and a support connecting seat (25); two supporting vertical beams (21) are arranged, and the root parts of the two supporting vertical beams are connected to side beams on two sides of the supporting bottom frame (12); The two supporting beams (22) are arranged, one end of each supporting beam is connected to the tops of the two supporting vertical beams (21), and the other end of each supporting beam is connected to the pair of supporting vertical beams (11); the box section connecting beam (23) is horizontally connected to the two supporting cross beams (22); the supporting connection box section (24) is connected below the box section connection beam (23); the support connecting seat (25) is connected below the support connecting box section (24); The load loading mechanism (3) is provided with three sets of load actuating cylinders (35) which are connected to the three pairs of load supporting beams (13) in a sliding manner; the slide rail mechanism test piece (4) comprises a slide rail mechanism (41) and a simulation wing box (42); The sliding rail mechanism (41) is horizontally connected below the support connecting box section (24) and the support connecting seat (25), and the support of the sliding rail mechanism (41) by the wing is simulated; a connecting joint is arranged below the simulated wing box (42) and is used for connecting the rocker middle joint, the rear joint and the hanging lug of the sliding rail mechanism (41), and the simulated flap wing box is connected with the flap sliding rail mechanism (41); A front joint (43), a middle joint (44) and a rear joint (45) are arranged above the simulation wing box (42), and are connected with three loading actuating cylinders (35).
  2. 2. The aircraft flap slide rail mechanism failure ground test apparatus of claim 1, wherein the support base frame (12) is mounted on a load bearing floor.
  3. 3. The aircraft flap slide rail mechanism failure ground test apparatus of claim 2, wherein the tops of each pair of support vertical beams (11) are connected by a short beam.
  4. 4. The aircraft flap slide rail mechanism fault ground test device according to claim 3, characterized in that the load loading mechanism (3) comprises a slide rail assembly (31), a sliding connection beam (32), a driving motor (33), a screw nut (34), a loading actuator (35) and a fixed connection beam (36); two slide rail assemblies (31) are connected to a pair of loading support beams (13); Two ends of the sliding connecting beam (32) are connected to the two sliding rail assemblies (31); The loading actuator cylinder (35) is hinged on the sliding connecting beam (32); The driving motor (33) is connected to the sliding connecting beam (32); Two ends of the fixed connecting beam (36) are connected to a pair of loading supporting beams (13); A nut (341) in the screw nut (34) is connected to the fixed connecting beam (36), and a screw (342) is connected to the driving motor (33).
  5. 5. The aircraft flap slide rail mechanism failure ground test apparatus of claim 4, wherein the rail assembly (31) comprises a slide rail (311), a fixed plate (322), a slider (323), a stop (324); the sliding rail (311) is connected to the fixed plate (322), and the fixed plate (322) is connected to the loading support beam (13); two sliding blocks (323) are arranged and are connected to the sliding rail (311) in a sliding manner; Two stop blocks (324) are connected to the fixed plate (322) and are positioned at two ends of the sliding rail (311); Two ends of the sliding connecting beam (32) are connected to the sliding blocks (323) of the two sliding rail assemblies (31).
  6. 6. The aircraft flap slide rail mechanism fault ground test device according to claim 5, wherein a nut (341) in a screw nut (34) is installed in a nut installation seat, the nut installation seat is connected to a fixed connection beam (36), a tapered roller bearing (343) is sleeved on a screw (342), the tapered roller bearing (343) is installed in a bearing installation seat, the bearing installation seat is connected to a sliding connection beam (32), and the screw (342) is connected with a driving motor (33) through a coupler (344).
  7. 7. The aircraft flap slide rail mechanism fault ground test device according to claim 6, wherein a motor mounting seat (331) is sleeved at the front end of the driving motor (33), the motor mounting seat (331) is connected to the fixed connecting beam (36), and a motor cushion block (332) is arranged between the rear end of the driving motor (33) and the fixed connecting beam (36).

Description

Fault ground test device for flap slide rail mechanism of airplane Technical Field The application belongs to the technical field of fault ground test design of an airplane flap slide rail mechanism, and particularly relates to a fault ground test device of an airplane flap slide rail mechanism. Background The wing flap of the airplane is positioned on the inner side of the trailing edge of the wing, is an essential component of the high lift device, has complex use environment and is required to meet the comprehensive requirements of high reliability, long service life, low maintenance cost and the like. The sliding rail mechanism is an important component part of the flap motion mechanism, and the structural integrity of the sliding rail mechanism has important influence on the functions of the front wing. However, the rail mechanism inevitably wears during service, thereby causing failure of the mechanism. The ground test of the sliding rail mechanism faults is designed to study the relation between the abrasion state of the sliding rail mechanism and the flight time of the airplane and the influence of the abrasion state on the flap function, reasonable test data are obtained, and data support is provided for the design improvement and the field maintenance of the sliding rail mechanism. Currently, in order to reduce the difficulty of test loading, a fault ground test device generally adopts side mounting to a slide rail mechanism, turns over 90 degrees with the slide rail mechanism, fixes on supporting a vertical beam, connects three joints of a rocker arm middle joint, a rear joint and a hanging lug on the slide rail mechanism inside a simulation wing box, designs a loading joint outside the simulation wing box and is connected with a hydraulic actuator cylinder, the hydraulic actuator cylinder is approximately parallel to the ground, and when in test, the hydraulic actuator cylinder is used for loading pneumatic simulation load on the slide rail mechanism, a slide rail trolley moves on a slide rail, and the hydraulic actuator cylinder follows the movement. The technical scheme has the following defects: the influence of the dead weight of the sliding rail trolley on abrasion is not considered, and the dead weight of the hydraulic actuating cylinder, the sliding rail trolley and the simulated wing box can apply an additional side load, so that the abrasion state of the contact surface of the side pulley and the sliding rail is influenced, the gap between the sliding rail trolley and the sliding rail is not reasonably simulated, the test simulation is different from the actual state of the sliding rail, the effectiveness of the test result is influenced, and the reliability of the test result is low. In partial improvement scheme, on the motion trail of slide rail dolly, set up stop gear to this stop gear follows the slide rail dolly motion, offset the influence of dead weight, but limited slide rail mechanism and side load's applys, and increased the complexity of test device structure, need increase many sets of position accuse devices, the test control degree of difficulty is big, and test cost is high. The present application has been made in view of the above-described technical drawbacks. Disclosure of Invention The application aims to provide a ground test device for the faults of an airplane flap slide rail mechanism, which can truly simulate the support and pneumatic load application of the slide rail mechanism during the test and improve the authenticity and the structural effectiveness of the ground test simulation of the slide rail mechanism faults. The technical scheme of the application is as follows: A fault ground test device for an airplane flap slide rail mechanism comprises a support frame, a support connection structure, a load loading mechanism and a slide rail mechanism test piece; The supporting frame comprises supporting vertical beams, supporting bottom frames and loading supporting beams; The support vertical beam is provided with two pairs, the root is connected with the two ends of the supporting bottom frame; the loading support beams are vertically arranged in three pairs, and two ends of the loading support beams are connected to the two pairs of vertical support beams; the support connecting structure comprises a support vertical beam, a support cross beam, a box section connecting beam, a support connecting box section and a support connecting seat; There are two support vertical beams, the root is connected to the side beams at two sides of the supporting bottom frame; the two supporting beams are arranged, one end of each supporting beam is connected to the tops of the two supporting vertical beams, and the other end of each supporting beam is connected to the pair of supporting vertical beams; The box section connecting beam is horizontally connected to the two supporting cross beams; the support connection box section is connected below the box section connection be