CN212161020U

CN212161020U - Helicopter rescue teaching instrument

Info

Publication number: CN212161020U
Application number: CN202021191514.7U
Authority: CN
Inventors: 冯凯; 潘涛; 孙胜华; 杨馥模; 熊伟
Original assignee: Dalian Maritime University
Current assignee: Dalian Maritime University
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2020-12-15
Anticipated expiration: 2030-06-23

Abstract

The utility model provides a helicopter rescue teaching instrument. Including the mount and rotate the simulation helicopter cabin of connection above that through a plurality of jibs, the cabin includes cabin body, supporting mechanism, rotation mechanism and hoist mechanism, and supporting mechanism circumference is equipped with the tie point that links to each other with each jib, and its top sets up rotation mechanism, its below is connected the cabin body, hoist mechanism set up inside the cabin body, and its end is equipped with the hoist that can stretch out in the cabin body, through changing the spatial position of simulation helicopter cabin for the mount, the motion process of simulation helicopter in the rescue process, through operation rotation mechanism, the turning to the motion in the simulation helicopter horizontal plane, through operation hoist mechanism, the rescue winch system of simulation helicopter. The utility model discloses compact structure, portable can directly demonstrate helicopter motion and various rescue modes on the classroom, saves the training cost, reduces the risk that the student takes place the incident at actual training in-process.

Description

Helicopter rescue teaching instrument

Technical Field

The utility model relates to a teaching aid technical field especially relates to a helicopter succour teaching instrument.

Background

The most common and effective mode for aviation emergency rescue is helicopter rescue, which requires the cooperation of a helicopter driver, a winch driver and a rescuer. In the rescue process, a driver controls the helicopter, a winch operator operates the rescue winch, and a lifesaver goes out of the cabin to rescue people at the same time. Aiming at different distress conditions, different rescue equipment is hoisted by utilizing a rescue winch hung outside the helicopter to rescue personnel. The helicopter rescue crew is trained, the theoretical course learning in the early stage is needed, the scientific training of a winch driver and a rescuer is carried out on the helicopter rescue simulator, and finally the training and the examination are carried out for a certain time on the real helicopter to become a professional rescue worker.

In the course of theoretical course training of earlier stage and teaching, because the helicopter structure is complicated, the rescue training process is nimble changeable, the rescue mode is various, the in-process of giving lessons, through the explanation of courseware, be difficult to make the student understand the process of helicopter rescue, if direct demonstration to the student through the rescue training simulator in the laboratory, then the cost of consumption is high, and personnel's security can not ensure.

SUMMERY OF THE UTILITY MODEL

According to the technical problem provided by the invention, a helicopter rescue teaching instrument is provided. The utility model discloses a technical means as follows:

the utility model provides a helicopter rescue teaching instrument, includes the mount and rotates the simulation helicopter cabin of connection on it through a plurality of jibs, simulation helicopter cabin includes cabin body, supporting mechanism, rotation mechanism and hoist mechanism, supporting mechanism circumference is equipped with the tie point that links to each other with each jib, and its top sets up rotation mechanism, its below are connected the cabin body, hoist mechanism sets up inside the cabin body, and its end is equipped with the hoist that can stretch out in the cabin body, through changing the spatial position of simulation helicopter cabin for the mount, the motion process of simulation helicopter in the rescue in-process, through operation rotation mechanism, the motion that turns to in the simulation helicopter horizontal plane, through operation hoist mechanism, the rescue winch system of simulation helicopter.

Furthermore, the fixed mount comprises a lower platform, an upper platform and a plurality of polished rods connecting the lower platform and the upper platform, the specifications of the polished rods are the same, the upper platform and the lower platform are parallel to each other, and the graph formed by connecting lines of adjacent groups of polished rods is a regular polygon.

Furthermore, each group of the polish rods comprises two polish rods, sliding blocks connected to the polish rods in a sliding mode are arranged on the two polish rods, the sliding blocks are connected with the inclined rods through ball hinges, the connecting points of the supporting mechanisms are also ball hinges, and a translation motor driven by each sliding block is arranged at the corresponding position of the lower platform.

Furthermore, a synchronous belt is arranged between the upper platform and the lower platform, the translation motor is connected with the synchronous belt, and the sliding block is installed on the synchronous belt.

Furthermore, the slewing mechanism comprises a bevel gear pair arranged above the supporting mechanism, the bevel gear pair comprises a first bevel gear connected to the slewing motor and a second bevel gear meshed with the first bevel gear, and the second bevel gear is connected with the cabin body through a rotating shaft.

Further, the hoisting mechanism comprises a hoisting motor and a hoisting machine body meshed with an output end gear of the hoisting motor, and the lifting appliance is specifically a wire wound on the hoisting machine body and a hook fixedly connected with the bottom end of the wire.

The utility model discloses compact structure, portable can directly demonstrate helicopter motion and various rescue modes on the classroom, conveys the relevant step of helicopter help-out experiment directly perceived to the student, promotes experiment teaching effect, cultivates student's innovation consciousness and hands-on operation ability. Through the translation mechanism and the executing mechanism, the motions of the helicopter in various directions for accurately advancing and retreating the rescue site are simulated, the rising or descending flight height of the real helicopter in the rescue process is restored, the real helicopter approaches to a target, and the helicopter withdraws in the designated direction. Through the simulation rescue winch system, the hoisting mechanism automatically retracts and releases the steel cable at different positions, and various rescue modes executed by the rescue helicopter under different distress conditions are restored. The utility model discloses effectually combine together training and experiment, the teaching combines together with the scientific research, saves a large amount of training expenses every year, has reduced student and has taken place the risk of incident at actual training in-process. Although the actions of the rescuers cannot be embodied through the teaching instrument, the detailed processes of various lifting modes of helicopter rescue training can be vividly displayed through oral description of the teaching personnel and demonstration of the teaching instrument. The problem of utilize the courseware explanation inconvenient student to understand on the helicopter help training theoretical course, the teaching effect is not obvious, directly carry out the demonstration in kind in the laboratory with high costs, the safety guarantee is not enough is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is the utility model discloses helicopter succour teaching instrument overall structure sketch map.

Fig. 2 is the utility model discloses helicopter help teaching instrument actuating mechanism concrete structure schematic diagram.

In the figure: 1. the system comprises an upper platform, 2 parts of a polished rod, 3 parts of a sliding block, 4 parts of a diagonal rod, 5 parts of an actuating mechanism, 6 parts of a helicopter cabin, 7 parts of a synchronous belt, 8 parts of a translation motor and 9 parts of a lower platform;

51. the hoisting machine comprises a rotary motor, 52, a support structure, 53, a second bevel gear, 54, a rotating shaft, 55, a hoisting motor, 56, a gear, 57, a winding machine body roller and 58, a hook.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figure 1 and figure 2, the embodiment of the utility model discloses a helicopter rescue teaching instrument, helicopter rescue teaching instrument forms according to the motion process design when true helicopter rescues. The rescue scene of the helicopter is reduced according to the proportion of 1:100, and the horizontal movement, the lifting movement, the steering in the horizontal plane and the retraction and release movement of a rescue winch system on the helicopter are simulated. Including the mount and rotate the simulation helicopter cabin of connection on it through a plurality of jibs, simulation helicopter cabin 6 includes cabin body, supporting mechanism and a plurality of actuating mechanism 5, actuating mechanism includes rotation mechanism and hoisting mechanism, supporting mechanism 52 circumference is equipped with the tie point that links to each other with each jib, and its top sets up rotation mechanism, its below is connected the cabin body, hoisting mechanism sets up inside the cabin body, and its end is equipped with the hoist that can stretch out in the cabin body, through changing the spatial position of simulation helicopter cabin for the mount, the motion process of simulation helicopter in the rescue in-process, through operation rotation mechanism, the motion that turns to in the simulation helicopter horizontal plane, through operation hoisting mechanism, the rescue winch system of simulation helicopter.

In a preferred embodiment, the fixing frame comprises a lower platform 9, an upper platform 1 and a plurality of polished rods 2 connected with the lower platform, the specifications of the polished rods are the same, the upper platform and the lower platform are parallel to each other, and the figure formed by connecting lines of adjacent groups of polished rods is a regular polygon. In this embodiment, the upper and lower platforms are equilateral triangles and are connected by six polished rods.

Each group of the polish rods comprises two polish rods, wherein the two polish rods are provided with sliders 3 connected to the polish rods in a sliding mode, the sliders 3 are connected with the inclined rods 4 through ball hinges correspondingly, in the embodiment, the number of the sliders is 3, the connecting points of the supporting mechanisms are also ball hinges, the supporting mechanisms can be flat plates, each slider is provided with a translation motor 8 driven by the slider at the corresponding position of the lower platform, and the translation motors are stepping motors.

A synchronous belt 7 is arranged between the upper platform and the lower platform, the translation motor is connected with the synchronous belt, and the sliding block is arranged on the synchronous belt.

Specifically, the whole translation mechanism is of a parallel arm structure, the three sliding blocks move in a coordinated mode, the movement of the sliding blocks is converted into horizontal and vertical movement of the executing mechanism through angle change of the fixed-length inclined rods, when the three sliding blocks move at a constant speed, the executing mechanism and the sliding blocks move linearly in the vertical direction together, and when the three sliding blocks move in a differential mode, the executing mechanism moves horizontally. The horizontal movement radius of the actuating mechanism is 0.5m, the vertical movement distance is 0.6m, and the movement of the helicopter in an airspace with the radius of 50m and the height of 60m can be simulated.

The slewing mechanism comprises a bevel gear pair arranged above the supporting mechanism, the bevel gear pair comprises a first bevel gear connected to a slewing motor 51 and a second bevel gear 53 meshed with the first bevel gear, and the second bevel gear is connected with the cabin body through a rotating shaft 54. The hoisting mechanism comprises a hoisting motor 55 and a hoisting machine body roller 57 meshed with the output end of the hoisting motor through a gear 56, and the lifting appliance is specifically a lifting hook 58 fixedly connected with the bottom end of a wire wound clockwise or anticlockwise on the hoisting machine body roller. The motor on the actuating mechanism is used for reducing speed through the bevel gear, changing the motion direction and driving the helicopter cabin to rotate, so that the steering motion in the horizontal plane of the helicopter is simulated, and the lifting motor drives the hoisting system to reel and reel the steel cable and simulate the rescue winch system of the helicopter.

Specifically, the teaching instrument can demonstrate various rescue modes in helicopter rescue training, and four common rescue modes of single set hoisting, double set hoisting, stretcher hoisting and high rope hoisting are taken as examples for explanation.

Example 1

The single set of hoisting refers to that a rescuer carries out rescue on people in danger by using a rescue sleeve, people with clear consciousness and good physical conditions can be rescued by using the method, the most common method for rescue of a common helicopter is also provided, the specific use method of the rescue sleeve is that the rescuer holds the rescue sleeve tightly by the right hand, finds a lifting hook from the armpit of the rescuer by the left hand along the lifting belt, lifts the lifting belt by one hand and straightens the lifting belt, and tightens a cable loop of the rescue sleeve, so that a winch handle hoists the rescuer and the rescuer to the helicopter together through a rescue winch steel cable.

The demonstration of a single set of lifting by using a teaching instrument is introduced as follows:

(1) the cabin is at the highest position, and the simulated airplane height is 60 m; the translation mechanism moves downwards in the vertical direction, the cabin descends to a position 0.2m away from the lower platform, the rescue helicopter is simulated to descend to a position 20m away from the ground to prepare for rescue after a distress target is found out from the normal flight height.

(2) The hoisting motor drives the hoisting system to lower the steel cable to a position 0.05m away from the lower platform. The simulation lowered the rescuer from the helicopter to a height of 5m from the ground.

(3) The translation mechanism moves to drive the cabin to move forward 0.4m in the horizontal direction, and the simulated airplane moves forward nearly 20 units (1 unit is equivalent to 2m) to a lifting point, namely, the simulated airplane reaches the position above the distress position.

(4) The winch system controls the steel cable to be continuously lowered to the ground level, the simulated winch driver hoists the lifeguard to the ground through the winch, the lifeguard is connected with the rescued person, namely the lifeguard is sleeved with the rescue sleeve, then the winch system retracts the steel cable, and the lifeguard and the rescued person are simulated to be successfully hoisted back to the cabin.

(5) The translation mechanism enables the engine room to withdraw according to the original route, horizontally retreats for 0.4m and returns to the initial position, and single set of hoisting rescue mode demonstration is completed.

Example 2

The double-set lifting refers to that a rescuer rescues people in danger by using two rescue sets, people with unconsciousness and coma but no body trauma and no fracture use the mode to rescue, and people who fall into water usually also use double-set rescue when rescuing people, wherein one rescue set is arranged under the armpit of a rescuee, and the second rescue set is arranged at the knee joint of the rescuee. Because the training of the double-set hoisting rescue mode is basically consistent with the training of the single-set hoisting, the demonstration by using a teaching instrument is completely the same as the single-set hoisting, and the process is not repeated.

Example 3

The stretcher lifting refers to that a lifeguard rescues people in distress by using a rescue stretcher, the stretcher is mainly used for rescuing serious patients or people with body fractures, the stretcher can fix the head, the body and four limbs of the rescued people, and the lifting is convenient for a helicopter.

When teaching instruments are used for demonstrating the lifting of the stretcher, the method is completely consistent with the first three steps of single lifting, and the mode demonstration of the lifting of the stretcher is introduced as follows from the fourth step:

(1) after the first three steps of operation, the nacelle is moved over the location in distress. And the hoisting system controls the steel cable to be continuously lowered to the ground level, and the lifesaver is simulated to be hoisted to the ground.

(2) After the steel cable is just put down to the ground, the translation mechanism drives the cabin to move 0.04m leftwards, the simulated airplane waits at 2 unit positions on the left side right above the transfer point, and at the moment, the rescuer continues to establish connection with the rescuee on the ground, namely, the rescuer fixes the rescuee by using a stretcher.

(3) The translation mechanism drives the cabin to move rightwards and return to the position above the lifting point, and a certain length allowance of the steel cable is kept in the whole process, so that the lifeguard is guaranteed not to be pulled. The hoisting system retracts the steel cable into the cabin, and represents that the lifeguard and the rescuee are successfully hoisted back into the cabin.

(4) And controlling the stepping motor to enable the cabin to withdraw according to the original route, horizontally retreating by 20 units, returning to the initial position, and finishing the demonstration of the lifting rescue mode of the stretcher.

Compared with single set lifting and double set lifting, the demonstration of the lifting link of the stretcher increases the steps of left movement and right movement of the engine room above a lifting point, and aims to enable the engine room to be evacuated above the lifting point when the stretcher is lifted, so that a rescuer can conveniently perform quick emergency treatment on a rescued person.

Example 4

The high rope is also called a high-position guide rope, a rope which is easy to break is attached to a winch lifting hook, the rope can accelerate the winch operation process, and the high-position guide rope is generally suitable for being used for solving the problems that the winch operation space is very small or an obstacle exists, the sea condition is poor, the height of dangerous objects on a ship is high, and a plurality of people in danger all use the high-rope hoisting rescue mode.

(1) The translation mechanism is arranged at the highest position, and the height of the aircraft is simulated to be 60 m; the translation mechanism moves downwards in the vertical direction, the cabin descends to a position 0.2m away from the lower platform, the rescue helicopter is simulated to descend to a position 20m away from the ground to prepare for rescue after a distress target is found out from the normal flight height.

(2) And starting the translation mechanism to enable the cabin to horizontally move 5 units leftwards to a waiting point, hanging a high rope in the cabin by a simulated winch hand at the moment, and putting down the high rope while putting down a lifesaver. And (4) hoisting a steel cable of the system to a position 0.05m away from the lower platform, and simulating to lower the lifeman together with a high rope from the helicopter to a position 5m in height.

(3) When the cabin moves to the upper part of the hoisting point, the steel cable is just lowered to the ground level, and a rescuer is simulated to carry the high cable to the ground.

(4) When the steel cable just reaches the ground, the cabin moves left rapidly, the steel cable continues to be released while moving left, meanwhile, the simulated lifeguard establishes connection with the rescuee on the ground, and mainly establishes connection between the high rope and the ground.

(5) After the connection is established, a ground rescuer can point the head of a winch in the cabin, at the moment, the cabin moves to a recovery point 3 units away from the hoisting point to the right, the hoisting system recovers the steel cable, meanwhile, the cabin moves to a waiting point to the left quickly, and the rescuer and the rescuee can be recovered to enter the cabin in the process. If a plurality of rescuees exist, the teaching instrument is used for repeating the process, and the demonstration of the high-rope hoisting rescue mode is completed.

The motion of all mechanisms of this device is all accomplished through the action of singlechip control motor, and the rescuer action that relates in the demonstration of above-mentioned rescue mode is virtual scene, but is essential link in the actual rescue training, though the rescuer action can not embody through the teaching instrument, but can show the detailed process of the various handling modes of helicopter rescue training through teaching personnel oral description, combines the demonstration of teaching instrument again, abundant vivid demonstration.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a helicopter salvage teaching instrument, its characterized in that includes the mount and rotates the simulation helicopter cabin of connection on it through a plurality of jibs, the simulation helicopter cabin includes cabin body, supporting mechanism, rotation mechanism and hoist mechanism, supporting mechanism circumference is equipped with the tie point that links to each other with each jib, and its top sets up rotation mechanism, its below is connected the cabin body, hoist mechanism sets up inside the cabin body, and its end is equipped with the hoist that can stretch out in the cabin body, through changing the spatial position of simulation helicopter cabin for the mount, simulates the course of motion of helicopter in the rescue process, through operation rotation mechanism, simulates the turning to the motion in the helicopter horizontal plane, through operation hoist mechanism, simulates the rescue winch system of helicopter.

2. A helicopter rescue teaching apparatus as claimed in claim 1 wherein the mounting bracket includes a lower platform, an upper platform and a plurality of polished rods connecting the lower platform and the upper platform, each polished rod being of the same dimensions such that the upper platform and the lower platform are parallel to each other and the pattern defined by the connecting lines of adjacent sets of polished rods is a regular polygon.

3. A helicopter rescue teaching apparatus as claimed in claim 2 wherein each set of polished rods includes two polished rods with sliders slidably connected thereto, the sliders are connected to the diagonal rods by ball hinges, the support mechanism is also connected by ball hinges, and each slider is provided with a translation motor for driving the slider at a position corresponding to the lower platform.

4. A helicopter rescue teaching apparatus as claimed in claim 3 wherein a timing belt is provided between the upper platform and the lower platform, the translation motor is connected to the timing belt, and the slide block is mounted on the timing belt.

5. A helicopter rescue teaching apparatus as claimed in claim 1 wherein the slewing mechanism includes a bevel gear pair disposed above the support mechanism, the bevel gear pair including a first bevel gear connected to the slewing motor and a second bevel gear meshing therewith, the second bevel gear being connected to the nacelle body via a rotating shaft.

6. A helicopter rescue teaching apparatus as claimed in claim 1 wherein the hoist mechanism includes a hoist motor and a hoist body geared to an output gear thereof, and the hoist includes a wire wound around the hoist body and a hook fixedly connected to a bottom end of the wire.