An automated device and system for gangway door functionality and durability testing

Abstract

The application provides a kind of gangway door function and durability test automation device and system, belongs to helicopter gangway door function and durability test technical field, the fixed rack in the device is arranged with door opening electric servo in the middle of upper end, and the extending end of door opening electric servo is provided with force handle;Two fixed pulleys are arranged on the both sides of the upper end of fixed rack, and a motor is arranged in the middle of the lower end of fixed rack, a speed change mechanism is arranged on the motor, the speed change mechanism is connected with two sides power flywheel through transmission shaft, one end of each cable is connected with one power flywheel, two cables are respectively through the fixed pulley on the both sides of the upper end of fixed rack, and the other end of two cables are connected with test piece hatch;Switch lock electric servo is installed on the hatch of test piece, and switch lock electric servo is connected with hatch lock handle through handle connecting mechanism;It can simulate the real boundary condition and various test working conditions of gangway door function and durability test, and realize the stable operation of gangway door multiple opening and closing cycle action.

Description

Technical Field

[0001] This invention belongs to the field of helicopter gangway door function and durability testing technology, specifically relating to an automated device and system for gangway door function and durability testing. Background Technology

[0002] As a crucial component of helicopters, the reliability of the boarding stairs and doors directly impacts the helicopter's usability. Door function and durability tests are conducted based on the total flight life of the helicopter airframe; after proportional conversion, this requires nearly 100,000 opening and closing cycles, which is limited by testing methods and technical conditions.

[0003] In related technologies, cabin door function and durability testing usually requires a technician to simulate the actual boarding actions of a flight attendant crew and manually operate the cabin door opening and closing actions. Therefore, it is urgent to realize fully automated operation of cabin door function and durability testing. Summary of the Invention

[0004] To address the technical problem of the inability to fully automate the functional and durability testing of helicopter door systems in related technologies, this invention provides an automated operating device and system for helicopter door functional and durability testing. This system simulates the real boundary conditions and various test scenarios of helicopter door functional and durability testing, and achieves stable operation of the door through nearly 100,000 opening and closing cycles. It also accumulates technical experience for subsequent helicopter door durability testing. The technical solution is as follows:

[0005] In a first aspect, an automated device for testing the function and durability of a gangway door is provided. The device includes: a fixed platform 1, a fixed pulley 2, a door opening electric servo 3, a force-applying handle 4, a motor 6, a speed-changing mechanism 7, a transmission shaft 8, a power flywheel 10, a switch / lock electric servo 12, and a handle connection mechanism 13.

[0006] A door-opening electric servo 3 is arranged at the middle of the upper end of the fixed platform 1, and a force-applying handle 4 is provided at the extended end of the door-opening electric servo 3; a fixed pulley 2 is arranged on each side of the upper end of the fixed platform 1, and a motor 6 is arranged at the middle of the lower end of the fixed platform 1. The motor 6 is equipped with a speed-changing mechanism 7, which is connected to the power flywheels 10 on both sides through a transmission shaft 8. The motor 6 realizes the conversion of low speed and high power on the power flywheels 10 through the speed-changing mechanism 7. Each power flywheel 10 on both sides is connected to a cable. At one end of cable 5, two cables 5 are connected to fixed pulleys 2 on both sides of the upper end of the fixed platform 1. The other ends of the two cables 5 are connected to the hatch of test specimen 14, which can realize the closing operation of test specimen 14. The switch lock servo 12 is installed on the hatch of test specimen 14. The switch lock servo 12 is connected to the door lock handle of the hatch through the handle connection mechanism 13, which can realize the unlocking and locking actions of the hatch. The fully extended and fully retracted states of the unlocking servo 12 should not affect the unlocking and locking functions of the hatch.

[0007] Optionally, the door opening electric servo 3 is mounted on the fixed frame 1 by means of clamps. The clamps can be used to make fine adjustments to the installation position of the door opening electric servo 3, ensuring that the door opening electric servo 3 can open the gangway door to the designated position.

[0008] Optionally, the two fixed pulleys 2 are installed at the same height and in a vertical position to prevent the cable 5 from detaching from the fixed pulleys and to ensure that the cable 5 moves along a preset trajectory.

[0009] Optionally, the other ends of both cables 5 are connected to the hatch of the test specimen 14 via cable connectors 11.

[0010] The power flywheel 10, the fixed pulley 2, and the cable connector 11 are all installed on the same plane.

[0011] Optionally, each of the two power flywheels 10 is provided with an anti-detachment device 9 to prevent the cable 5 from detaching from the power flywheel 10, ensuring that the cable 5 will not fall off the power flywheel 10 when the hatch is opened and closed.

[0012] Optionally, the mounting frame 1 is fixed to the floor of the specimen 14 and aligned with the hatch.

[0013] Optionally, the initial connection posture of the power flywheels 10 on both sides and the cable 5 is consistent, ensuring that the angle and linear velocity of the movement of the cable 5 on both sides are consistent.

[0014] Optionally, the motor 6 is bolted to the fixed frame 1.

[0015] Optionally, the drive shaft 8 and the power flywheel 10 are connected by a fixed pin, and the drive shaft 8 needs to be installed horizontally.

[0016] Secondly, an automated system for testing the function and durability of a gangway door is provided. The system includes: an automated device for testing the function and durability of a gangway door, a test specimen 14, and a host computer. The automated device for testing the function and durability of the gangway door includes any of the devices described in the first aspect. The unlocking servo 12 of the device is installed on the hatch of the test specimen 14.

[0017] The host computer is used to control the motor 6 to drive the speed change mechanism 7, transmission shaft 8, power flywheel 10, cable 5, fixed pulley 2, and specimen 14 hatch according to the control instructions, so as to realize the hatch closing function;

[0018] The host computer is also used to control the door opening electric servo 3 according to the control instructions to drive the force application handle 4 and the hatch of the test piece 14 to realize the hatch opening function.

[0019] The host computer is also used to control the switch lock servo 12 according to the control instructions to drive the handle connection mechanism 13, so as to realize the door lock opening and closing function.

[0020] The present invention provides an automated device for testing the function and durability of gangway doors. It can simulate the normal operation process of opening and closing gangway doors, and can also realize the automatic opening and closing of gangway door locks and the opening and closing of cabin doors. It can operate stably and continuously to achieve the function and durability test of gangway doors, and to achieve the purpose of assessing the fatigue life and failure mode of each component of gangway doors. Attached Figure Description

[0021] Figure 1 A schematic diagram of an automated device for testing the function and durability of a gangway door, provided by the present invention;

[0022] Figure 2 This is a schematic diagram of the switch and lock mechanism provided by the present invention;

[0023] Figure 3 This is a frontal schematic diagram of the door opening and closing mechanism provided by the present invention. Detailed Implementation

[0024] The present application will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0025] This invention provides an automated device for testing the function and durability of gangway doors, such as... Figure 1 and Figure 2 As shown, the device includes: a fixed platform 1, a fixed pulley 2, a door opening electric servo 3, a force-applying handle 4, a motor 6, a speed change mechanism 7, a drive shaft 8, a power flywheel 10, a switch lock electric servo 12, and a handle connecting mechanism 13.

[0026] A door-opening electric servo 3 is arranged at the middle of the upper end of the fixed platform 1, and a force-applying handle 4 is provided at the extended end of the door-opening electric servo 3; a fixed pulley 2 is arranged on each side of the upper end of the fixed platform 1, and a motor 6 is arranged at the middle of the lower end of the fixed platform 1. A speed-changing mechanism 7 is provided on the motor 6, and the speed-changing mechanism 7 is connected to the power flywheels 10 on both sides through a transmission shaft 8. The motor 6 realizes the conversion of low speed and high power on the power flywheels 10 through the speed-changing mechanism 7. Each of the two power flywheels 10 is connected to one end of a cable 5. The two cables 5 are respectively connected to the fixed pulleys 2 on both sides of the upper end of the fixed platform 1, and the other ends of the two cables 5 are connected to the hatch of the specimen 14, which can realize the closing operation of the specimen 14; a switch-lock electric servo 12 is installed on the hatch of the specimen 14, and the switch-lock electric servo 12 is connected to the door lock handle of the hatch through a handle connection mechanism 13, which can realize the unlocking and locking actions of the hatch. Figure 2 As shown. The fully extended and fully retracted states of the switch lock servo 12 must not affect the door's unlocking and locking functions.

[0027] In one possible implementation, the door opening electric servo 3 is mounted on the fixed platform 1 by means of clamps. The clamps allow for fine-tuning of the installation position of the door opening electric servo 3, ensuring that the door opening electric servo 3 can open the gangway door to the designated position.

[0028] The two fixed pulleys 2 are installed at the same height and in a vertical position to prevent the cable 5 from detaching from the fixed pulleys and to ensure that the cable 5 moves along the preset trajectory.

[0029] The other ends of both cables 5 are connected to the hatch of the test specimen 14 via cable connectors 11.

[0030] The power flywheel 10, the fixed pulley 2, and the cable connector 11 are all installed on the same plane.

[0031] Embodiments of the present invention also provide another automated device for gangway door function and durability testing, such as Figure 1 As shown, the device includes: a fixed frame 1, a fixed pulley 2, a door opening electric servo 3, a force-applying handle 4, a cable 5, a motor 6, a speed-changing mechanism 7, a transmission shaft 8, an anti-derailment device 9, a power flywheel 10, a switch lock electric servo 12, and a handle connecting mechanism 13.

[0032] like Figure 3 As shown, both sides of the power flywheel 10 are equipped with anti-detachment devices 9 to prevent the cable 5 from detaching from the power flywheel 10. When performing the opening and closing actions of the cabin door, the cable 5 can be guaranteed not to fall off the power flywheel 10.

[0033] The fixed stand 1 is fixed to the floor of the specimen 14 and aligned with the hatch.

[0034] The initial orientation of the connection between the power flywheels 10 on both sides and the cable 5 is consistent, ensuring that the angle and linear velocity of the movement of the cable 5 on both sides are consistent.

[0035] The motor 6 is bolted to the fixed frame 1.

[0036] The drive shaft 8 and the power flywheel 10 are connected by a fixed pin, and the drive shaft 8 needs to be installed horizontally.

[0037] This invention also provides an automated system for testing the function and durability of gangway doors. The system includes: an automated device for testing the function and durability of gangway doors, a test specimen 14, and a host computer. The automated device for testing the function and durability of gangway doors includes the automated device for testing the function and durability of gangway doors described in this invention. The switch / lock servo 12 of this device is installed on the hatch of the test specimen 14.

[0038] The host computer is used to control the motor 6 to drive the speed change mechanism 7, transmission shaft 8, power flywheel 10, cable 5, fixed pulley 2, and specimen 14 hatch according to the control instructions, so as to realize the hatch closing function;

[0039] The host computer is also used to control the door opening electric servo 3 according to the control instructions to drive the force application handle 4 and the hatch of the test piece 14 to realize the hatch opening function.

[0040] The host computer is also used to control the switch lock servo 12 according to the control instructions to drive the handle connection mechanism 13, so as to realize the door lock opening and closing function.

[0041] Please see Figures 1 to 3 The working process of the automated device for testing the function and durability of a gangway door provided in this embodiment of the invention is as follows:

[0042] The starting position is the fully opened position of the hatch of specimen 14, such as... Figure 1 As shown. The host computer controls the motor 6 to start according to the control command to drive the speed change mechanism 7. The motor power is realized through the speed change mechanism 7, which transforms the speed from high speed and low torque to low speed and high torque. Then, it drives the power flywheel 10 to rotate through the transmission shaft 8. Since the power flywheel 10 is fixed to one end of the cable 5, the power flywheels 10 on both sides start to pull the cable 5. The cable 5 changes direction through the fixed pulley 2 without changing the load, and retracts the hatch of the specimen 14, and finally realizes the hatch closing action. The sensor is triggered the moment the hatch is completely closed. The host computer controls the motor 6 to close according to the trigger command.

[0043] The host computer also controls the switch lock servo 12 to start according to the control command. The piston rod of the switch lock servo 12 extends, drives the handle connecting mechanism 13, the door lock handle is fully opened, the door lock is in the unlocked position, and the host computer controls the switch lock servo 12 to close.

[0044] The host computer controls the motor 6 to start according to the control command. The motor 6 reverses to drive the speed change mechanism 7, which in turn drives the power flywheel 10 to rotate in the opposite direction through the transmission shaft 8. The power flywheel 10 releases the cable 5. After the cable 5 has been released to a sufficient length, the host computer controls the motor 6 to shut down according to the control command.

[0045] The host computer also controls the start of the door opening electric servo 3 according to the control command. The door opening electric servo 3 starts to extend the piston rod. The piston rod end is equipped with a force application handle 4. The force application handle 4 pushes the hatch of the specimen 14 outward, so that the hatch opens to a specified angle. After the hatch opens to the specified angle, it begins to open the hatch by its own gravity until it is fully open.

[0046] The host computer also controls the door opening electric servo 3 to start according to the control command. The piston rod of the door opening electric servo 3 retracts until it is fully retracted. The host computer then controls the door opening electric servo 3 to close according to the control command.

[0047] The host computer also controls the power-locking servo 12 to start according to the control command. The piston rod of the power-locking servo 12 retracts until it is fully retracted. The host computer then controls the power-locking servo 12 to shut down according to the control command.

[0048] The above description merely illustrates the embodiments of this application, and while it is quite specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Furthermore, any parts not detailed in this application are conventional techniques.

Claims

1. An automated device for testing the function and durability of a gangway door, characterized in that, The device includes: a fixed platform (1), an opening electric servo (3) is provided at the middle position of the upper end of the fixed platform (1), and a force-applying handle (4) is provided at the extended end of the opening electric servo (3); a fixed pulley (2) is provided on each side of the upper end of the fixed platform (1), a motor (6) is provided at the middle position of the lower end of the fixed platform (1), a speed change mechanism (7) is provided on the motor (6), the speed change mechanism (7) is connected to the power flywheels (10) on both sides through the transmission shaft (8), each of the power flywheels (10) on both sides is connected to one end of a cable (5), the two cables (5) are respectively connected to the fixed pulleys (2) on both sides of the upper end of the fixed platform (1), and the other end of the two cables (5) is connected to the hatch of the test piece (14); a switch lock electric servo (12) is installed on the hatch of the test piece (14), and the switch lock electric servo (12) is connected to the door lock handle of the hatch through the handle connection mechanism (13); The door opening electric servo (3) is mounted on the fixed frame (1) by clamps; The two fixed pulleys (2) are installed at the same height and their posture is kept vertical; Both sides of the power flywheel (10) are equipped with anti-detachment devices (9) to prevent the cable (5) from detaching from the power flywheel (10).

2. The apparatus according to claim 1, characterized in that, The other ends of both cables (5) are connected to the hatch of the test specimen (14) via cable connectors (11). The power flywheel (10), fixed pulley (2) and cable connector (11) are installed on the same plane.

3. The apparatus according to claim 1, characterized in that, The fixed stand (1) is fixed to the floor of the test piece (14) and aligned with the hatch.

4. The apparatus according to claim 1, characterized in that, The initial connection posture of the power flywheel (10) and cable (5) on both sides is the same.

5. The apparatus according to claim 1, characterized in that, The motor (6) is mounted on the fixed frame (1) by bolts.

6. The apparatus according to claim 1, characterized in that, The drive shaft (8) and the power flywheel (10) are connected by a fixed pin.

7. An automated system for testing the function and durability of gangway doors, characterized in that, The system includes: the device according to any one of claims 1 to 6, the test piece (14), and the host computer.

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