Air steering control unit for simulating parachute landing control training

Abstract

The utility model relates to an air steering control unit for simulating parachute landing control training. The air steering control unit comprises a rotating motor, a first rotating shaft connected with an output shaft of the rotating motor, a lower frame connected with the first rotating shaft and two steering simulation mechanisms arranged in the lower frame. The two steering simulation mechanisms are a first steering simulation mechanism and a second steering simulation mechanism, and the first steering simulation mechanism is located at the left end of the lower frame. Comprising a first pull box with an automatic contraction function, a reel arranged on the outer side of the first pull box, a control rope, a control rod, a second rotating shaft, a driving gear, a driven wheel, a third rotating shaft, a first switch unit and a speed regulator. When a parachute landing person is trained, the control rod on one side of the rear portion is pulled, the simulated parachute rotates towards the side in the air, and in the process, the rotating speed is higher along with downward pulling of the control rod; and meanwhile, the two operating rods on the rear side are pulled down to simulate the deceleration action of the parachute landing personnel when the parachute landing personnel contact the ground.

Description

Technical Field

[0001] The utility model patent relates to the field of parachuting training, in particular to an air steering control unit for simulating parachute landing control training. Background Art

[0002] Parachuting, also known as air dropping, is both a sport and a military activity. Operations such as parachutists adjusting direction, moving laterally in the air, and closing the ventilation opening of the parachute pack during landing can adjust direction, avoid obstacles, prevent parachutists from colliding, and adjust the landing point. These operations are all important for the safety of parachutists and often require simulation training on the ground. Only when the operations are proficient can panic and mistakes be avoided in the air and parachuting accidents be prevented.

[0003] The airborne simulation close to the real scene, in which the steering simulation operations include: 1. Pulling the control rod at the left rear side to simulate the parachute pack turning to the left, and pulling the control rod at the right rear side to simulate the parachute pack turning to the right; 2. Pulling a group of control rods at the right front side and the left rear side simultaneously to simulate the parachute pack turning in the direction of accelerating to the left, and pulling a group of control rods at the left front side and the right rear side simultaneously to simulate the parachute pack turning to the right and accelerating; 3. The lower the control rod is pulled down, the faster the simulated turning speed of the parachute pack. When pulling the control rods at the two rear corners simultaneously, the parachute pack does not turn, which is used to simulate the braking action during landing.

[0004] However, the current parachuting simulation devices only lift people on a rack and rotate them by a motor. Some are controlled by buttons, and some use ropes for mechanical transmission, pulling by hand to rotate and stopping when not pulling. They do not conform to the real scene, cannot implement the multiple operations described above, and cannot control the turning speed by the stretching amplitude of the control rod.

[0005] In short, there is a lack of an air steering control unit for simulating parachute landing control training that can simulate the above actions. Summary of the Utility Model

[0006] The utility model provides an air steering control unit for simulating parachute landing control training to solve the above-mentioned technical problems.

[0007] An air steering control unit for simulating airdrop operation training, comprising a rotary motor, a first rotating shaft connected to the output shaft of the rotary motor, a lower frame connected to the first rotating shaft, and two steering simulation mechanisms arranged in the lower frame; the two steering simulation mechanisms are correspondingly arranged at the left and right ends of the lower frame, and the two steering simulation mechanisms are respectively a first steering simulation mechanism and a second steering simulation mechanism. The first steering simulation mechanism is located at the left end of the lower frame and includes a first wire drawing box with an automatic retraction function, a wire winding wheel arranged outside the first wire drawing box, a control rope arranged on the wire winding wheel, a control rod fixed to the other end of the control rope, a second rotating shaft in anti-rotation fit with the wire winding wheel, a driving gear arranged at the end of the second rotating shaft, a driven wheel meshing with the driving gear, a third rotating shaft in anti-rotation fit with the driven wheel, a first switch unit, and a speed regulator connected to the third rotating shaft. The driven wheel includes a driven gear and a switch wheel coaxially arranged integrally with the driven gear. The circumferential surface of the switch wheel has a groove initially cooperating with the first switch unit. The first switch unit includes two travel switches arranged side by side, namely a first normally open switch and a first normally closed switch. The second steering simulation mechanism has one more fixed pulley for changing the steering of the control rope than the first steering simulation mechanism. The remaining structure of the second steering simulation mechanism is the same as that of the first steering simulation mechanism and is symmetrically arranged along the first rotating shaft (the first rotating shaft was not mentioned before). The switch unit of the second steering simulation mechanism is defined as the second switch unit, including a second normally open switch and a second normally closed switch. Among them, the first normally open switch and the second normally closed switch are connected in series to form a first steering circuit for controlling the rotary motor to drive the lower frame to rotate to the left. The second normally open switch and the first normally closed switch are connected in series to form a second steering circuit for controlling the rotary motor to drive the lower frame to rotate to the right. The first steering circuit and the second steering circuit are independently arranged. The end of the wire in the first wire drawing box of the first steering simulation mechanism is fixed to the wire winding wheel. The upper end of the control rope is fixed to the wire winding wheel and wound several turns. The lower end of the control rope passes through the bottom of the lower frame downward. The output wire of the speed regulator is connected to the rotary motor.

[0008] Preferably, the first steering simulation mechanism and the second steering simulation mechanism further include a second wire drawing box, which is fixed at both ends of the front side of the lower frame, and the wires of the second wire drawing box are respectively connected to a control rod alone.

[0009] Preferably, the third rotating shaft is connected to a universal joint coupling, and the universal joint coupling is connected to the speed regulator. The third rotating shaft is connected to the speed regulator through the universal joint coupling.

[0010] The aerial steering control unit for simulating parachute landing operation training of the present utility model. During training, the parachutist pulls the control rod on one side at the rear to simulate the rotation of the parachute in the air to that side. Taking the left side as an example, when pulling down the left control rod, the control rope rotates the winding wheel. The winding wheel drives the driven wheel through the second rotating shaft and the driving gear. The switch wheel on the driven wheel pushes the first switch unit away from the initial position and triggers it. The first normally open switch closes, and the first steering circuit is connected. The control rotates the motor to drive the lower frame to rotate to the left. At the same time, the first normally closed switch opens to prevent the second steering circuit from being connected and malfunctioning. During this process, as the control rod is pulled down, the third rotating shaft rotates accordingly, driving the speed governor to adjust the speed. The lower the control rod is pulled, the faster the rotation speed, simulating the adjustment of the parachute's direction in the air. When the control rod is released, the guy wire resets under the action of the first guy wire box, and the first switch unit resets, and the lower frame no longer rotates. If both control rods at the rear are pulled down simultaneously, both the first steering circuit and the second steering circuit remain open, the rotating motor does not start and does not rotate, simulating the deceleration action when the parachutist touches the ground.

[0011] Furthermore, during actual airborne operations, there are also two control rods on the front side of the parachute. Pulling the diagonal control rods will increase the steering speed. Second guy wire boxes and control rods are respectively arranged at both ends of the front side of the lower frame to simulate the airborne operation of pulling the diagonal control rods.

[0012] Furthermore, the third rotating shaft is connected to the speed governor through a universal joint coupling, which can ensure the accurate transmission of the rotation angle from the third rotating shaft to the potentiometer while greatly reducing the relative position requirements between the potentiometer and the third rotating shaft, facilitating installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an aerial steering control unit for simulating parachute landing operation training in the present utility model;

[0014] Figure 2 is a schematic structural diagram of the lower frame and two steering simulation mechanisms arranged in the lower frame;

[0015] Figure 3 is a top view structural diagram of the first steering simulation mechanism;

[0016] Figure 4 is a schematic structural diagram of the driven wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] An embodiment of an aerial steering control unit for simulating parachute landing operation training is as Figures 1-4As shown, it includes a rotating motor, a first rotating shaft 8 connected to the output shaft of the rotating motor, a lower frame 1 connected to the first rotating shaft, and two steering simulation mechanisms provided in the lower frame; the lower frame 1 can rotate horizontally driven by the rotating motor, and the two steering simulation mechanisms are correspondingly provided at the left and right end portions of the lower frame. The lower frame 1 is a rectangular frame made of angle iron, with two parallel horizontal fixing rods fixed at the top. The lower frame can be connected to the rotating motor directly or indirectly. Specifically, the output shaft of the rotating motor faces downward and is connected to the first rotating shaft 8. The direct connection method can be: the lower end of the first rotating shaft 8 is welded to the top of the lower frame. The indirect connection method: the first rotating shaft 8 is connected to the flange shaft sleeve through a flange shaft sleeve 12 and bolts, and the lower end of the flange shaft sleeve is welded or bolted to the lower frame; or other indirect connection methods are used to connect to the first rotating shaft. The rotating motor can be directly fixed on a gantry fixing frame or fixed on a lateral moving device, such as fixed on an upper frame. The upper frame is horizontally guided on the guide rail through a pulley mechanism and a traveling mechanism that drives the pulley mechanism to roll on the guide rail. The connection method between the rotating motor 11 and the lower frame and the fixing method of the rotating motor can be specifically set as needed, which will not be elaborated in this embodiment.

[0018] The two steering simulation mechanisms are the first steering simulation mechanism and the second steering simulation mechanism respectively. The first steering simulation mechanism includes a first wire drawing box 3 with an automatic retraction function, a wire winding wheel 6 arranged outside the first wire drawing box, a control rope 4 arranged on the wire winding wheel, a control rod 5 fixed at the other end of the control rope, a second rotating shaft 17 in anti-rotation cooperation with the wire winding wheel, a driving gear 18 arranged at the end of the second rotating shaft, a driven wheel meshing with the driving gear, a third rotating shaft in anti-rotation cooperation with the driven wheel, a first switch unit, and a speed regulator 21 connected to the third rotating shaft. The driven wheel includes a driven gear 19 and a switch wheel 27 arranged coaxially and integrally with the driven gear. The circumferential surface of the switch wheel has a groove initially cooperating with the first switch unit. In this embodiment, the groove is a cut surface 28, and in other embodiments, it can also be a U-shaped groove. The first switch unit includes two travel switches arranged side by side, namely a first normally open switch 25 and a first normally closed switch 26, which are fixed on an L-shaped fixing plate 24. The L-shaped fixing plate 24 is fixed on the lower frame. The second steering simulation mechanism has one more fixed pulley 2 for changing the steering direction of the control rope than the first steering simulation mechanism. The remaining structure of the second steering simulation mechanism is the same as that of the first steering simulation mechanism and is symmetrically arranged along the first rotating shaft. For the convenience of distinction, the switch unit of the second steering simulation mechanism is defined as the second switch unit, including a second normally open switch and a second normally closed switch. Among them, the first normally open switch and the second normally closed switch are connected in series to form a first steering circuit for controlling the rotation motor 11 to drive the lower frame to rotate to the left. The second normally open switch and the first normally closed switch are connected in series to form a second steering circuit for controlling the rotation motor 11 to drive the lower frame to rotate to the right. The first steering circuit and the second steering circuit are independently arranged. The end of the wire 13 in the first wire drawing box of the first steering simulation mechanism is fixed on the wire winding wheel. The upper end of the control rope 4 is fixed on the wire winding wheel and wound several turns. The lower end of the control rope passes downward through the bottom of the lower frame. The output wire of the speed regulator is connected to the rotation motor. The speed regulator 21 is an existing product and is connected to the third rotating shaft through a potentiometer on it. Specifically, the third rotating shaft is connected to the potentiometer through a universal joint coupling 20. In this way, while ensuring the accurate transmission of the rotation angle from the third rotating shaft to the potentiometer, the relative position requirement between the potentiometer and the third rotating shaft is greatly reduced, which is convenient for installation. It should be noted that the winding directions of the control ropes of the first steering simulation mechanism and the second steering simulation mechanism on the corresponding wire winding wheels are both clockwise for adapting to the potentiometer. The control rope of the second steering simulation mechanism changes the direction through the fixed pulley 2 to ensure that when the two control rods are pulled downward respectively, the rotation speed of the rotation motor 11 can be increased.An annular partition plate 16 is integrally provided on the winding wheel 6, separating the winding wheel 20 into two annular grooves 15 to form a double-groove winding wheel. The pulling wire 13 and the control cable 4 are respectively located in different annular grooves to avoid mutual interference and winding. The ends of the pulling wire and the control cable are both fixed in the corresponding annular grooves. Compared with connecting the pulling wire and the control cable and winding them on the winding wheel, when the control cable is released, it can avoid the problem that the winding wheel cannot be reset in place due to insufficient friction between the control cable pulling wire and the winding wheel, resulting in continuous rotation of the lower frame and speed regulation failure. The second rotating shaft and the third rotating shaft are both fixed on the second frame through bearing seats.

[0019] The first steering simulation mechanism and the second steering simulation mechanism further include a second wire pulling box 22, which is fixed at both ends of the front side of the lower frame. The pulling wires of the wire pulling box are each separately connected to a control rod. During an actual airborne operation, there are also two control rods on the front side of the parachute. Pulling the diagonal control rods will increase the steering speed. Wire pulling boxes and control rods are respectively arranged at both ends of the front side of the lower frame to simulate the airborne operation of pulling the diagonal control rods for practice.

Claims

1. An aerial steering control unit for simulating parachute control training, characterized in that: It includes a rotating motor, a first rotating shaft connected to the output shaft of the rotating motor, a lower frame connected to the first rotating shaft, and two steering simulation mechanisms arranged in the lower frame; the two steering simulation mechanisms are respectively arranged at the left and right ends of the lower frame, and the two steering simulation mechanisms are respectively a first steering simulation mechanism and a second steering simulation mechanism, the first steering simulation mechanism is located at the left end of the lower frame, and includes a first wire drawing box with an automatic retraction function, a winding wheel arranged outside the first wire drawing box, a control rope arranged on the winding wheel, a control rod fixed to the other end of the control rope, a second rotating shaft matched with the winding wheel for anti-rotation, a driving gear arranged at the end of the second rotating shaft, a driven wheel meshed with the driving gear, a third rotating shaft matched with the driven wheel for anti-rotation, a first switch unit, and a speed regulator connected to the third rotating shaft, the driven wheel includes a driven gear and a switch wheel arranged coaxially with the driven gear, the circumferential surface of the switch wheel has a groove initially matched with the first switch unit, and the first switch unit includes a plurality of The two travel switches arranged are respectively a first normally open switch and a first normally closed switch. The second steering simulation mechanism has one more fixed pulley for changing the direction of the control rope than the first steering simulation mechanism. The remaining structure of the second steering simulation mechanism is the same as the first steering simulation mechanism and is symmetrically arranged along the first rotation axis. The switch unit of the second steering simulation mechanism is defined as a second switch unit, including a second normally open switch and a second normally closed switch, wherein the first normally open switch and the second normally closed switch are connected in series to form a first steering circuit for controlling the rotating motor to drive the lower frame to rotate to the left, the second normally open switch and the first normally closed switch are connected in series to form a second steering circuit for controlling the rotating motor to drive the lower frame to rotate to the right, the first steering circuit and the second steering circuit are arranged independently of each other, the wire end of the first wire box in the first steering simulation mechanism is fixed on the winding wheel, the upper end of the control rope is fixed on the winding wheel and wound several times, the lower end of the control rope passes downward through the bottom of the lower frame, and the output wire of the speed regulator is connected to the rotating motor.

2. An aerial steering control unit for simulating parachute control training according to claim 1, characterized in that: The first steering simulation mechanism and the second steering simulation mechanism further include a second wire drawing box, which is fixed at two ends of the front side of the lower frame, and the wires of the second wire drawing box are each individually connected to a control rod.

3. The aerial steering control unit for simulating parachute control training according to claim 1, characterized in that: The third rotating shaft is connected to the universal joint coupling, the universal joint coupling is connected to the speed regulator, and the third rotating shaft is connected to the speed regulator through the universal joint coupling.

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