Tethered balloon rigging test equipment and test method

Abstract

The present invention belongs to the field of testing of aerostat mooring rigging under a simulated real-life load state, and specifically relates to a mooring balloon rigging test device and a test method. The device comprises: a characteristic turntable (1), a tensioning device (2), a lifting device (3), a steel wire rope (4), a winch system (5), and a rotation drive device (6). The lower end of the rotating shaft (602) is connected to a support platform (601) through a bearing (604), and the upper end is connected to the characteristic turntable (1). The tensioning device (2) is arranged on the characteristic turntable (1). The tensioning device (2) includes four stretching devices arranged symmetrically around the circumference. After the steel wire rope (4) passes through a fixed pulley (305) below the lifting device (3) and a fixed pulley located on the ground, one end is connected to a bow tie (73) of a bow tie test piece, and the other end is connected to the winch system (5). The lifting and lowering of the fixed pulley (305) and the rotation of the bow tie test piece on the characteristic turntable (1) are controlled to achieve different angle state tests.

Description

Technical Field

[0001] The present invention belongs to the field of testing the tethered rigging of soft aerostats such as tethered balloons, airships, and high-altitude balloons under a simulated real-use load state, and particularly relates to a tethered balloon rigging testing device and a testing method. Background Art

[0002] The rigging and the aerostat are connected by a bow tie, which transfers the environmental loads on the balloon to the ground anchoring equipment or the hands of the auxiliary workers. Due to the air flow, the aerostat may flip or pitch. At this time, the environmental loads borne by the aerostat and the mooring rigging are the most complex. Figure 1 As shown, as the attitude of the aerostat changes, the mooring rigging can be adjusted not only in the longitudinal direction of the aerostat, but also in the circumferential direction of the aerostat. The study of the interaction force between the mooring rigging and the bow tie is relatively complicated.

[0003] The existing test device is to conduct the ultimate strength test of the bow tie and the mooring rigging separately, without any test on their combination. Summary of the Invention

[0004] Purpose of the invention: To provide a tethered balloon rigging test device and test method, which can adjust the angle at which the tethered rigging is connected to the bow tie, thereby testing the interaction force between the tethered rigging and the bow tie at different angles, thereby solving the structural strength problem of the design.

[0005] Technical solution:

[0006] A tethered balloon rigging test device comprises: a feature turntable 1, a tensioning device 2, a lifting device 3, a steel wire rope 4, a winch system 5, and a rotation drive device 6, wherein the rotation drive device 6 comprises a support platform 601 and a rotating shaft 602, wherein the lower end of the rotating shaft 602 is connected to the support platform 601 via a bearing 604, and the upper end of the rotating shaft 602 is connected to the feature turntable 1 for driving the feature turntable 1 to rotate, the tensioning device 2 is arranged on the feature turntable 1, the tensioning device 2 comprises four circumferentially symmetrically arranged stretching devices, each stretching device is used to connect to the pull ring 71 of the bow-tie test piece, after the steel wire rope 4 passes through the fixed pulley 305 below the lifting device 3 and the fixed pulley located on the ground, one end is connected to the bow tie 73 of the bow-tie test piece, and the other end is connected to the winch system 5, the lifting and lowering of the fixed pulley 305 is controlled by the lifting device 3, and the rotation of the bow-tie test piece on the feature turntable 1 is controlled by the rotation drive device 6, so as to realize the interaction force between the mooring rigging and the bow tie in different angle states.

[0007] Furthermore, each stretching device in the tensioning device 2 includes a power device 201, a screw 202, a tensioning beam 204, a tensioning beam 205, and a sensor 206, wherein the power device 201 is fixed on the characteristic turntable 1, one end of the screw 202 is connected to the power device 201, and the other end is connected to the tensioning beam 204 through a thread, so that the tensioning beam 204 moves back and forth in one direction, transmitting the torque to the tensioning beam 205, and the two ends of the sensor 206 are fixed to the tensioning beam 205 and the tensioning beam 204, and are used to display the magnitude of the tensioning force in real time, and the tensioning beam 205 is used to fix the bow tie test piece.

[0008] Furthermore, the power device 201 is a motor-driven power device.

[0009] Furthermore, the stretching device also includes a slide 203, which is fixed on the characteristic turntable 1. The sliders under the tensioning beam 204 and the stretching beam 205 are placed in the slide 203 to ensure that the direction of the stretching beam 205 is stable when moving back and forth.

[0010] Furthermore, a gear slot 605 is fixed on the rotating shaft 602 of the rotation driving device 6 , wherein the power device 607 transmits the torque to the rotating shaft 602 through the gear 606 and the gear slot 605 .

[0011] Furthermore, the lifting device 3 includes a base 301, a limiting device 302, a cylinder 303, a beam 304 and a pulley 305, wherein both ends of the beam 304 are arranged in the limiting device 302, and the two cylinders 303 are hingedly connected to the beam 304 and the base 301, and the up and down movement of the beam is achieved by controlling the stroke of the cylinder.

[0012] Furthermore, the limiting device 302 is a longitudinal groove provided on the inner side surface of the base 301 .

[0013] A tethered balloon rigging test method, characterized in that the method is performed with the aid of the above-mentioned device, and the method comprises:

[0014] Determine the tension force on the bow-tie test piece;

[0015] Install the bow-tie test piece into the tensioning device 2 and use a steel pipe to fix the pull ring 71 of the bow-tie test piece to the tension beam 205 of the tensioning device 2;

[0016] According to the magnitude of the tensioning force, the power device 201 in the tensioning device 2 is started to tension, the value of the sensor 206 in the tensioning device 2 is read, and the tensioning is stopped within the error range of the tensioning force;

[0017] After calibrating the position of the turntable platform before rotation, start the motor in the rotation drive device 6 to drive the characteristic turntable 1 to rotate, and lock the motor gear after rotating it to the first angle;

[0018] Adjust the height of 303 of the lifting device 3 so that the angle between the wire rope 4 and the horizontal plane is a second angle;

[0019] The winch system 5 is started to test the tension of the wire rope 4 and the bow-tie test piece when they are broken.

[0020] Beneficial effects:

[0021] The tethered balloon rigging test equipment of the present invention features a simple structure, easy to manufacture, and based on mature and reliable technology. The turntable can rotate to achieve force transmission at varying angles, simulating the force relationship between the rigging and the bow tie. The device can also read the tension of the rigging under load in real time. The materials used and the finished product are all commonly used, mature structural products, offering simple manufacturing, a mature market, high quality, and competitive pricing, resulting in excellent economic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram for adjusting the direction of the mooring rigging;

[0023] Figure 2 is an axonometric view of the tethered balloon rigging test apparatus of the present invention with a bow-tie test piece placed thereon;

[0024] Figure 3 A front view of a tethered balloon rigging test apparatus according to the present invention;

[0025] Figure 4 A schematic diagram of the characteristic turntable and tensioning device of the tethered balloon rigging test equipment of the present invention without the bow tie test piece placed therein;

[0026] Figure 5 A schematic diagram of a tensioning device of a tethered balloon rigging test apparatus according to the present invention;

[0027] Figure 6 A schematic diagram of a rotation drive device for a tethered balloon rigging test device according to the present invention;

[0028] Figure 7 A schematic diagram of a lifting device for a tethered balloon rigging test device according to the present invention;

[0029] Figure 8 Schematic diagram of the bow-tie test piece;

[0030] Figure 9 Schematic diagram of the initial state of a test according to an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of a state where a test piece according to an embodiment of the present invention is rotated 45° relative to a characteristic turntable;

[0032] Among them, the characteristic features include a turntable 1, a tensioning device 2, a lifting device 3, a wire rope 4, a winch system 5, and a rotation drive device 6; a power device 201, a screw 202, a slideway 203, a tensioning beam 204, a stretching beam 205, and a sensor 206; a base 301, a limit device 302, a cylinder 303, a crossbeam 304, and a fixed pulley 305; a supporting platform 601, a rotating shaft 602, a supporting base 603, a bearing 604, a gear groove 605, a gear 606, and a power device 607; a pull ring 71, an airbag material body 72, and a bow tie 73. DETAILED DESCRIPTION

[0033] In order to reflect the load borne by the aerostat in the most realistic way, this test device was invented. It can simulate the interaction between the aerostat rigging to the greatest extent, provide support for the design of the aerostat bow and the selection of the mooring rigging, thereby improving the design accuracy of the mooring rigging and reducing safety risks.

[0034] The tethered balloon rigging test equipment of the present invention can adjust the angle at which the tethered rigging is connected to the bow tie, thereby testing the interaction force between the tethered rigging and the bow tie at different angles, thereby solving the structural strength problem of the design.

[0035] like Figure 2 and Figure 3 The tethered balloon rigging test equipment of the present invention includes a characteristic turntable 1, a tensioning device 2, a lifting device 3, a steel wire rope 4, a winch system 5, and a rotary drive device 6. The characteristic turntable 1 is used to fix the tensioning device 2. Driven by the rotary drive device 6, the turntable device 1 rotates to change the horizontal angle between the bow-tie test piece and the cable. The lifting device 3 can be raised and lowered to adjust the vertical angle between the bow-tie test piece and the cable. This can change the horizontal spatial angle between the bow-tie test piece and the cable, achieving the test purpose. The winch system 5 is connected to the bow-tie test piece in the test equipment via the steel wire rope 4. By changing the spatial angle, the maximum load that the bow-tie test piece can bear at different angles is measured.

[0036] The characteristic turntable 1 is also used as a platform for placing various equipment and instruments and is a major component of the test device.

[0037] like Figure 4 and 5The tensioning device 2 primarily consists of four identical tensioning devices, arranged symmetrically around the circumference. Each tensioning device consists of a power unit 201, a screw 202, two slideways 203, two sensors 206, a tensioning beam 205, and a tensioning beam 204. The power unit 201, fixed to the characteristic turntable 1, is an electric mechanism that converts electrical energy into mechanical power and primarily consists of a motor and a gearbox. The screw 202 is connected to the power unit 201 at one end and to the tensioning beam 204 via a threaded connection at the other end, enabling the tensioning beam 204 to move back and forth in one direction, transmitting torque to the tensioning beam 205.

[0038] Slide 203 is fixed to the characteristic turntable 1, ensuring that the tensile beam 205 maintains a stable direction during its back-and-forth movement. Sensor 206 is fixed to both ends of tensile beam 205 and tension beam 204, providing real-time display of the tensioning force. Tensile beam 205 is the component that secures the bow-tie test piece.

[0039] like Figure 6 The rotation drive unit 6 is located directly below the feature turntable 1 and is fixed to the feature turntable 1 via a rotating shaft 602. The lower portion of the rotating shaft 602 is connected to the support platform 601 and the support base 603 via a bearing 604. A gear slot 605 is fixed to the rotating shaft 602, transmitting the torque transmitted by the power unit to the feature turntable 1, thereby rotating the shaft platform. The power unit 607 converts electrical energy into mechanical energy and transmits the torque to the shaft platform via gear 606.

[0040] like Figure 7 The lifting device 3 is mainly composed of a base 301, a limit device 302, an oil cylinder 303, a beam 304 and a pulley 305. The two oil cylinders 303 are hingedly connected to the beam 304 and the base 301, and the up and down movement of the beam is achieved by controlling the oil cylinder stroke.

[0041] like Figure 8 The bow-tie test piece includes a pull ring 71, an airbag material body 72 and a bow-tie 73. The pull ring passes through the tensioning beam 204 in the tensioning device 2 and is fixed in the tensioning beam with a round tube.

[0042] During use, the bow tie test piece is placed on the characteristic turntable 1 of the tethered balloon rigging test equipment. After the fixed tensioning device 2 on the characteristic turntable 1 tensions the bow tie test piece, the wire rope 4 passes through the bow tie 73 of the bow tie test piece 7, passes through the fixed pulley 305 of the lifting device 3, and uses the winch system 5 to test the bearing force between the bow tie 73 and the rigging.

[0043] The steel wire rope 4 passes through the fixed pulley 305 of the lifting device and the fixed pulley on the ground (between the lifting device 3 and the winch system 5), and is wound on the winch system 5 of the power device. The power device can control the winch output and display the size of the output force.

[0044] Example

[0045] The steel wire rope 4 and the bow tie are deflected 45° laterally and 45° vertically to perform a tensile test on the steel wire rope 4 and the bow tie test piece.

[0046] Follow these steps to implement:

[0047] (1) First, convert the pressure of one of the working conditions of the airbag design into the tension force of the bow tie test piece.

[0048] (2) Figure 9 , install the bow tie test piece into the tensioning device 2, and use a steel pipe to fix the pull ring 71 on the tensioning beam 205 of the tensioning device 2.

[0049] (3) According to the magnitude of the tensioning force, the power driving device 201 in the rotating tensioning device 2 is started to tension, the value of the sensor 206 in the tensioning device 2 is read, and the tensioning is stopped within the error range.

[0050] (4) Calibrate the position of the turntable platform before rotation. Start the motor in the rotation drive device 6 to drive the characteristic turntable 1 to rotate. After rotating the turntable 1 to a first angle (for example, 45°), lock the motor gear.

[0051] (5) Figure 10 , adjust the height of the oil cylinder 303 of the lifting device 3 so that the angle between the wire rope 4 and the horizontal is a second angle (for example, it can be 45°).

[0052] (6) Start the winch system 5 to test the tension when the wire rope 4 and the bow-tie test piece are broken.

Claims

1. A tethered balloon rigging test device, characterized in that: include: A characteristic turntable, a tensioning device, a lifting device, a wire rope, a winch system, and a rotation drive device, wherein the rotation drive device includes a support platform and a rotating shaft, wherein the lower end of the rotating shaft is connected to the support platform through a bearing, and the upper end of the rotating shaft is connected to the characteristic turntable, for driving the characteristic turntable to rotate, and the tensioning device is arranged on the characteristic turntable, and the tensioning device includes four circumferentially symmetrically arranged stretching devices, each stretching device is used to be connected to the pull ring of the bow-tie test piece, after the wire rope passes through the fixed pulley below the lifting device and the fixed pulley located on the ground, one end is connected to the bow of the bow-tie test piece, and the other end is connected to the winch system, the lifting and lowering of the fixed pulley is controlled by the lifting device, and the rotation of the bow-tie test piece on the characteristic turntable is controlled by the rotation drive device, so as to realize the interaction force between the mooring rigging and the bow-tie in different angle states.

2. The tethered balloon rigging test equipment according to claim 1, characterized in that: Each stretching device in the tensioning device includes a power device, a screw, a tensioning beam, a tensile beam, and a sensor. The power device is fixed on the characteristic turntable, one end of the screw is connected to the power device, and the other end is connected to the tensioning beam through a thread, so that the tensioning beam moves back and forth in one direction and transmits the torque to the tensile beam. The two ends of the sensor are fixed to the tensile beam and the tensioning beam, and are used to display the magnitude of the tensioning force in real time. The tensile beam is used to fix the bow tie test piece.

3. The tethered balloon rigging test equipment according to claim 2, characterized in that: The power device is an electric motor driven power device.

4. The tethered balloon rigging test equipment according to claim 2, characterized in that: The stretching device also includes a slideway, which is fixed on the characteristic turntable. The tensioning beam and the slider under the stretching beam are placed in the slideway to ensure that the direction of the stretching beam is stable when it moves back and forth.

5. The tethered balloon rigging test equipment according to claim 2, characterized in that: A gear groove is fixed on the rotating shaft of the rotary drive device, wherein the power device transmits torque to the rotating shaft through the gears and the gear groove.

6. The tethered balloon rigging test equipment according to claim 2, characterized in that: The lifting device includes a base, a limit device, a cylinder, a beam and a pulley, wherein both ends of the beam are set in the limit device, and the two cylinders are hingedly connected to the beam and the base, and the beam is moved up and down by controlling the stroke of the cylinder.

7. The tethered balloon rigging test equipment according to claim 2, characterized in that: The limiting device is a longitudinal groove arranged on the inner side surface of the base.

8. A tethered balloon rigging test method, characterized in that: The method is performed by means of the apparatus according to any one of claims 2 to 7, and the method comprises: Determine the tension force on the bow-tie test piece; Install the bow-tie test piece into the tensioning device and use a steel pipe to fix the pull ring of the bow-tie test piece to the tension beam of the tensioning device; According to the magnitude of the tensioning force, a power device in the tensioning device is started to tension, a value of a sensor in the tensioning device is read, and tensioning is stopped within an error range of the tensioning force; Calibrate the position of the turntable platform before rotation, start the motor in the rotation drive device, drive the characteristic turntable to rotate, and lock the motor gear after rotating to the first angle; By adjusting the lifting device, the angle between the wire rope and the horizontal plane is made to be a second angle; Start the winch system to test the tension of the wire rope and the bow-tie test piece when it is broken.

Images