Device for testing strength of nose cone lock of aerostat

Abstract

The utility model discloses an aerostat nose cone lock strength test device, which comprises a vertical loading device and a guiding device which are fixed on a heavy frame, a transverse loading device is arranged on the vertical loading device, the transverse loading device can move along the vertical direction under the driving of the vertical loading device, and the guiding device is arranged on the vertical loading device. The actuating cylinder in the transverse loading device can also move along a horizontal plane perpendicular to the axis direction of the nose cone lock test piece, the nose cone lock test piece is fixed on the heavy frame, the guide device is located below the nose cone lock test piece, and a pulley adapter plate in the guide device can move along a horizontal plane parallel to the axis of the nose cone lock test piece. And a guide pulley is arranged on the pulley adapter plate. The test device is convenient to install, can realize rapid and quantitative tensioning and fixing, and better simulates the boundary condition of the installation state of the test piece.

Description

Technical Field

[0001] This utility model belongs to the field of airship strength testing technology, and in particular relates to a device for testing the strength of airship head cone lock. Background Technology

[0002] The nose cone lock of an aerostat is a key device in the mooring subsystem of a tethered balloon ground support system. Installed on the mooring tower, it connects with the nose cone of the tethered balloon. During balloon recovery, it automatically locks the nose cone to the mooring tower. It unlocks automatically or manually during balloon ascent. While the balloon is tethered in the air, it must withstand loads at different angles. Therefore, the nose cone lock must undergo functional, static strength, and fatigue strength tests on the ground. To simulate real-world conditions, facilitate improvements and modifications during the R&D phase, and meet batch production inspection requirements, a universal testing device is needed that can quickly meet the needs of nose cone lock improvement and modification testing and accommodate loading requirements at different angles. Currently, strength tests of the nose cone lock are conducted manually, which is inefficient, cannot fully simulate the operating conditions of the prototype in its installed state, and has a long testing cycle. Utility Model Content

[0003] Utility Model Purpose

[0004] To address the problem of low installation efficiency in existing head cone lock strength testing methods, this invention provides a strength testing device for airship head cone locks.

[0005] Utility Model Technical Solution

[0006] A strength testing device for a nose cone lock of an airship includes a vertical loading device and a guiding device fixed on a support frame. A transverse loading device is mounted on the vertical loading device, which can move vertically under the drive of the vertical loading device. An actuating cylinder in the transverse loading device can also move along a horizontal plane perpendicular to the axis of the nose cone lock test piece. The nose cone lock test piece is fixed on the support frame. The guiding device is located below the nose cone lock test piece. A pulley adapter plate in the guiding device can move along a horizontal plane parallel to the axis of the nose cone lock test piece. A guide pulley is mounted on the pulley adapter plate. A force sensor can also be arranged at the front end of the guide pulley in the guiding device for monitoring, thereby achieving quantitative tensioning and better simulating the operating conditions of the test piece in its installed state.

[0007] Preferably, the vertical loading device includes a guide rail that is vertically fixed on the support frame, the large substrate can move along the guide rail, and the horizontal loading device is disposed on the large substrate.

[0008] Preferably, the lateral loading device further includes a second guide rail horizontally arranged on the large substrate, the small substrate can move along the second guide rail, and the fixed end of the loading cylinder is fixed on the small substrate.

[0009] Preferably, the guiding device further includes a guide rail three fixed on the support frame. The guide rail three is horizontally arranged and perpendicular to the guide rail two, and the pulley adapter plate can move along the guide rail three.

[0010] Preferably, the large substrate, the small substrate, and the pulley adapter plate are all slidably engaged with guide rail one, guide rail two, and guide rail three respectively via sliders.

[0011] Preferably, the large substrate, the small substrate, and the pulley adapter plate are all driven by ball screws, and the ball screws are driven by servo motors.

[0012] Preferably, the head cone lock test piece is connected to the telescopic end of the actuating cylinder via a steel wire rope.

[0013] Preferably, one end of the head cone lock test piece is connected to a steel wire rope, and the other end of the steel wire rope is connected to the telescopic end of the actuating cylinder after passing over the guide pulley.

[0014] Preferably, the head cone lock test piece is connected to the guide pulley via a steel wire rope.

[0015] Preferably, the vertical movement of the large base plate in the vertical loading device, the lateral movement and extension / retraction of the actuating cylinder in the horizontal loading device, and the movement of the pulley adapter plate are all controlled by programming. This testing device is automatically controllable, achieving automation of test installation and loading, greatly improving test efficiency. From installation to loading, the entire testing device uses a control program to automatically control each servo motor in the loading device, significantly improving test efficiency.

[0016] Advantages of this utility model:

[0017] 1) This test device is easy to install and can achieve rapid quantitative tensioning and fixing, better simulating the boundary conditions of the test piece in the machine state;

[0018] 2) This testing device can adapt to different improved and modified test specimens, has strong applicability, and accelerates the improvement and modification design during the model development process;

[0019] 3) The test device can meet the loading requirements at different angles. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of axial loading for a strength testing device for the head cone lock of an airship according to the present invention.

[0021] Figure 2 This is a schematic diagram of the lateral angle loading of a test device for the strength of a float head cone lock according to the present invention.

[0022] Figure 3 This is a schematic diagram of vertical angle loading for a strength testing device for the head cone lock of an airship according to the present invention.

[0023] Figure 4 This is a schematic diagram of the functional test loading of a test device for the strength test of the head cone lock of an airship according to the present invention.

[0024] Figure 5 This is a schematic diagram of the framework platform structure.

[0025] Figure 6 This is a schematic diagram of the guiding device.

[0026] Figure 7 This is a schematic diagram of the vertical loading device.

[0027] Figure 8 This is a schematic diagram of the horizontal loading device.

[0028] In the diagram: 1—Supporting frame; 2—Adapter base; 3—Servo motor; 4—Screw fixing seat; 5—Dovetail groove guide rail; 6—Slider; 7—Pulley adapter plate; 8—Guide pulley; 9—Ball screw; 10—Slot; 11—Large base plate; 12—Small base plate; 13—Guide rail plate; 14—Motor fixing square steel base; 15—Actuating cylinder; 16—Vertical loading device; 17—Transverse loading device; 18—Wire rope; 19—Head cone lock joint; 20—Head cone lock test piece; 21—Frame platform; 22—Guiding device. Detailed Implementation

[0029] This utility model is achieved through the following technical solution.

[0030] A testing device for the strength of a nose cone lock on an airship includes a frame platform 21, which comprises a support frame 1 and a transfer base 2. A vertical loading device 16 and a guide device 22 are connected to the support frame 1. A lateral loading device 17 is connected to the vertical loading device 16 via connecting bolts. The vertical loading device 16 can drive the lateral loading device 17 to move vertically. The lateral loading device 17 includes two horizontally arranged guide rails 13 connected to the vertical loading device 16. A small base plate 12 is slidably mounted on the guide rails 13 via a slider 6 fixed on the small base plate 12. An actuating cylinder 15 is fixed to the small base plate 12, and the telescopic end of the actuating cylinder 15 is connected to a nose cone lock test piece 20 via a steel wire rope 18 and a nose cone lock connector 19. A ball screw nut is connected to the small base plate 12, and the ball screw 9 is driven to rotate by a servo motor 4, thereby causing the small base plate 12 to move along the guide rails 13. The nose cone lock test piece 20 is fixed to the support frame 1 via the transfer base 2. By adjusting the design of the adapter base 2, it can be adapted to different head cone lock improvements and modifications. The support frame 1 is mainly welded from square steel, and the adapter base 2 is mainly welded from channel steel.

[0031] The vertical loading device 16 includes a dovetail groove guide rail 5 vertically connected to the support frame 1. The large base plate 11 is slidably mounted on the dovetail groove guide rail 5 via a slider 6 fixed on the large base plate 11. The large base plate 11 is connected to a lead screw nut. The ball screw 9 of the vertical loading device 16 is driven to rotate by a servo motor 4, thereby causing the large base plate 11 to move up and down along the dovetail groove guide rail 5. The ball screw 9 of the vertical loading device 16 is fixed to the support frame 1 via a lead screw fixing seat 4. The servo motor 4 of the horizontal loading device 17 is fixed to the large base plate 11 via a motor fixing square steel base 14. The ball screw 9 of the horizontal loading device 17 is connected to the motor fixing square steel base 14 via a lead screw fixing seat 4.

[0032] The guide device 22 is located below the head cone lock test piece 20. The guide device 22 includes a dovetail groove guide rail 5, which is horizontally positioned and perpendicular to the transverse loading device 17. A pulley adapter plate 7 is slidably mounted on the dovetail groove guide rail 5 of the guide device 22 via a slider 6 connected to the bottom surface of the pulley adapter plate 7. The pulley adapter plate 7 is connected to a lead screw nut. The ball screw 9 is driven to rotate by a servo motor 4. A guide pulley 8 is provided on the top surface of the pulley adapter plate 7. The axis of the guide pulley 8 is horizontal. The position of the guide pulley 8 can be adjusted to meet the testing requirements of different improved and modified test pieces within a certain range, and to achieve tensioning and fixing of the test piece, better simulating the operating conditions of the head cone lock test piece 20 in its installed state. The ball screw 9 of the guide device 22 is fixed to the support frame 1 by a lead screw fixing seat 4. In use, one end of the wire rope 18 can be connected to the telescopic end of the actuating cylinder 15, and the other end can be connected to the head cone lock test piece 20 after passing around the outer circumference of the guide pulley 8. Alternatively, one end of the wire rope 18 can be fixed on the guide pulley 8, and the other end can be connected to the head cone lock test piece 20.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model. The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A testing device for the strength of a nose cone lock on an airship, characterized in that, The device includes a vertical loading device (16) and a guide device (22) fixed on the support frame (1). A transverse loading device (17) is provided on the vertical loading device (16). The transverse loading device can move vertically under the drive of the vertical loading device (16). The actuating cylinder (15) in the transverse loading device (17) can also move along a horizontal plane perpendicular to the axis of the head cone lock test piece (20). The head cone lock test piece (20) is fixed on the support frame (1). The guide device (22) is located below the head cone lock test piece (20). The pulley transition plate (7) in the guide device (22) can move along a horizontal plane parallel to the axis of the head cone lock test piece (20). A guide pulley (8) is provided on the pulley transition plate (7).

2. The device for testing the strength of the nose cone lock of an airship as described in claim 1, characterized in that, The vertical loading device (16) includes a guide rail that is vertically fixed on the support frame (1), the large base plate (11) can move along the guide rail, and the horizontal loading device (17) is disposed on the large base plate (11).

3. The device for testing the strength of the nose cone lock of an airship as described in claim 2, characterized in that, The horizontal loading device (17) also includes a guide rail two horizontally arranged on the large substrate (11), the small substrate (12) can move along the guide rail two, and the fixed end of the actuation cylinder (15) is fixed on the small substrate (12).

4. The device for testing the strength of the nose cone lock of an airship as described in claim 3, characterized in that, The guiding device (22) also includes a guide rail three fixed on the support frame (1). The guide rail three is horizontally set and perpendicular to the guide rail two. The pulley transfer plate (7) can move along the guide rail three.

5. The apparatus for testing the strength of a nose cone lock of an airship as described in claim 4, characterized in that, The large substrate (11), the small substrate (12), and the pulley adapter plate (7) are all slidably engaged with guide rail one, guide rail two, and guide rail three respectively via slider (6).

6. The apparatus for testing the strength of a nose cone lock of an airship as described in claim 4, characterized in that, The large substrate (11), the small substrate (12), and the pulley adapter plate (7) are all driven by ball screws (9), which are driven by servo motors.

7. A testing device for the strength of a nose cone lock of an airship as described in any one of claims 1 to 6, characterized in that, The head cone lock test piece (20) is connected to the telescopic end of the actuating cylinder (15) via a steel wire rope (18).

8. A testing device for the strength of a nose cone lock of an airship as described in any one of claims 1 to 6, characterized in that, The head cone lock test piece (20) is connected to one end of the wire rope (18), and the other end of the wire rope (18) is connected to the telescopic end of the actuating cylinder (15) after passing over the guide pulley (8).

9. A testing device for the strength of a nose cone lock of an airship as described in any one of claims 1 to 6, characterized in that, The head cone lock test piece (20) is connected to the guide pulley (8) via a steel wire rope (18).

10. The apparatus for testing the strength of a nose cone lock of an airship as described in claim 4, characterized in that, The vertical movement of the large base plate (11) in the vertical loading device (16), the horizontal movement and extension of the actuating cylinder (15) in the horizontal loading device (17), and the movement of the pulley adapter plate (7) are all controlled by programming.

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