Aircraft snowblower

Abstract

The present invention relates to the field of snowblowing for aircraft, and specifically is a snowblowing vehicle for aircraft, comprising a carriage, a main electric turntable is installed on one side of the top of the carriage, a connecting seat is installed on the upper surface of the main electric turntable, a main swing arm is rotatably installed in the connecting seat through a pin shaft, a first hydraulic cylinder is rotatably installed between the main swing arm and the connecting seat, an end of the main swing arm away from the connecting seat is hinged with an auxiliary swing arm through a connecting frame, an end of the auxiliary swing arm away from the connecting frame is hinged with an auxiliary frame, a third hydraulic cylinder is rotatably installed between the auxiliary frame and the connecting frame, a second hydraulic cylinder is rotatably installed between an end of the main swing arm close to the auxiliary swing arm and the auxiliary swing arm, a pod is installed on the upper surface of the auxiliary frame, and an anti-collision part is installed on the bottom of the pod. The present invention has the following beneficial effects: the influence of the inertia of the pod and the swing arm on the main electric turntable is minimized, the main electric turntable is protected, the failure rate of the main electric turntable caused by instantaneous increase in load is reduced, and the reliability of snowblowing and de-icing for aircraft is improved.

Description

Technical Field

[0001] The invention relates to an aircraft snowblower, belonging to the field of aircraft snowblowing. Background Art

[0002] When an aircraft is operating in winter and encounters cold, snowy, freezing rain and other weather conditions, it is necessary to remove snow and ice from key aircraft surfaces before takeoff, usually including wings, wingtip winglets, control surfaces, propellers, engine air intakes, the upper surface of the aircraft fuselage where the engine is mounted at the rear, horizontal stabilizers, vertical stabilizers or any other stable surfaces of the aircraft. Due to the high altitude of the aircraft, a foldable swing arm is required to adjust the height of the pod. One end of the swing arm is connected to a vehicle with a hydraulic pump station and an internal combustion engine through an electric turntable. The position of the pod is adjusted through the electric turntable, and the height of the pod is adjusted through the hydraulic cylinder in the swing arm. Then a fan and an electric heater are installed on the swing arm. A blow pipe is installed on the pod. When the fan is working, air enters the electric heater, which heats the air. Then the hot air is blown to the surface of the aircraft through the blow pipe to achieve the purpose of clearing the snow on the surface of the aircraft. Because the personnel are in the pod, the pod will block their sight, that is, there will be a blind spot when the personnel are in the pod. In order to prevent the pod from colliding with the aircraft when driven by the electric turntable, an anti-collision sensor is installed on the surface of the pod to prevent the pod from colliding with the aircraft. The collision sensor detects the relative position of the pod and the aircraft in real time. When the pod is too close to the aircraft, the anti-collision sensor transmits the detected data to the central processing unit, and the central processing unit controls the electric turntable to stop moving immediately. The above method is one of the measures to prevent the pod from colliding with the aircraft. Since the pod and the swing arm are heavy, when the electric turntable stops suddenly, the pod and the swing arm will swing under the action of their inertia. At this time, the worm gear on the output end of the power motor in the electric turntable is subjected to a large reaction force, causing the electric turntable to be subjected to a large unbalanced load. The probability of failure of the electric turntable is relatively high, causing the electric turntable to be unable to be used normally. At this time, the pod is in the operating area around the aircraft, and it takes more effort to keep the pod away from the aircraft, affecting the efficiency of snow blowing. Summary of the invention

[0003] In view of the shortcomings of the prior art, the object of the present invention is to provide an aircraft snowblower to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: an aircraft snowblower, including a carriage, a hydraulic pump station, an internal combustion engine and a generator are installed in the carriage, a main electric turntable is installed on one side of the top of the carriage, a connecting seat is installed on the upper surface of the main electric turntable, a main swing arm is rotatably installed in the connecting seat through a pin shaft, a first hydraulic cylinder is rotatably installed between the main swing arm and the connecting seat, an end of the main swing arm away from the connecting seat is hinged to a secondary swing arm through a connecting frame, an end of the secondary swing arm away from the connecting frame is hinged to a secondary frame, a third hydraulic cylinder is rotatably installed between the secondary frame and the connecting frame, and a third hydraulic cylinder is rotatably installed between the end of the main swing arm close to the secondary swing arm and the secondary swing arm. A second hydraulic cylinder is rotatably installed, a pod is installed on the upper surface of the sub-frame, a fan is installed on one side of the connecting seat, an electric heater is installed on one side of the main swing arm, the air outlet end of the fan is connected to the air inlet end of the electric heater through a first hose, the air outlet end of the electric heater is installed with a first air supply pipe, a second air supply pipe is installed on one side of the sub-swing arm, a second hose is installed between the first air supply pipe and the second air supply pipe, the end of the second air supply pipe away from the second hose is connected to a hollow tube through a third hose, the hollow tube is installed at the bottom of the pod, the end of the hollow tube away from the second air supply pipe is installed with a blowing pipe through an angle adjustment piece, and an anti-collision piece is installed at the bottom of the pod.

[0005] Specifically, the anti-collision member includes an annular tube, an annular tube filled with insulating oil is provided at the lower side of the hollow tube, the annular tube is installed at the bottom of the nacelle through a bracket, a plurality of tubes connected to the annular tube are installed on the surface of the annular tube, one of the plurality of tubes is arranged vertically, and the other tubes of the plurality of tubes except the vertically arranged tube are arranged horizontally, a detachable tube cover is installed at one end of the tube away from the annular tube, a guide hole is opened in the middle of one side of the tube cover, a guide rod is inserted in the guide hole, a second piston is installed at one end of the guide rod in the tube, the second piston is slidably installed in the tube, a carrier is installed at one end of the guide rod outside the tube, an inflatable rubber airbag is installed on one side of the carrier away from the guide rod, and a control component for controlling the current of the power motor in the main electric turntable is installed on the side of the outer surface of the annular tube away from the vertically arranged tube.

[0006] Specifically, the control component includes a cylinder body, a cylinder body communicated with the annular tube is installed on the side of the outer surface of the annular tube away from the vertically arranged tube tube, a detachable end cover is installed on the end of the cylinder body away from the annular tube, a rectangular hole is opened in the middle of one side of the end cover, a rectangular rod is inserted in the rectangular hole, a first piston is installed at the end of the rectangular rod in the cylinder body, the first piston is slidably installed in the cylinder body, a spring is provided between the first piston and the end cover, the spring is sleeved on the rectangular rod, a conductive sleeve is installed at the end of the rectangular rod in the outer side of the cylinder body through an insulating seat, a linear resistor that is in sliding contact with the conductive sleeve is inserted in the conductive sleeve, the linear resistor is arranged parallel to the cylinder body, a wiring ear that is electrically connected to the wires in the power motor in the main electric turntable is installed on the end of the linear resistor close to the annular tube and the outer surface of the conductive sleeve, and a shielding member for hiding the linear resistor is installed on the cylinder body.

[0007] Specifically, the shielding member includes a shielding cover, the shielding cover is sleeved on the cylinder and is connected and fixed to the cylinder, a shielding shell is provided on the side of the shielding cover away from the annular tube, the end of the shielding shell close to the shielding cover is open, and the open end of the shielding shell is connected to the shielding cover by a plurality of bolts, the end of the linear resistor away from the annular tube is sleeved with an insulating sleeve adhered to the linear resistor, the insulating sleeve is installed in the shielding cover, the rectangular rod and the conductive sleeve are arranged in the shielding shell, and two threading holes are provided on one side of the shielding cover.

[0008] Specifically, a circular cavity penetrating the guide rod is processed in the guide rod, a connecting rod is inserted in the circular cavity, the guide rod penetrates the second piston, the end of the guide rod away from the second piston penetrates the carrier plate, the end of the connecting rod close to the second piston is connected and fixed with the third piston, the third piston is arranged on the side of the second piston away from the cylinder cover, the third piston is slidably installed in the tube, the end of the connecting rod in the circular cavity is installed with the fourth piston, the fourth piston is slidably installed in the circular cavity, two blocking rods are symmetrically installed on the side of the second piston away from the third piston, the end of the blocking rod away from the second piston is in contact with the cylinder cover, the blocking rod and the guide rod are arranged in parallel, two elastic ropes in a stretched state are installed on the side of the second piston away from the third piston, the end of the elastic rope away from the second piston is connected and fixed to the cylinder cover, and the two elastic ropes and the two blocking rods are alternately arranged.

[0009] Specifically, two first blind holes are formed on one side of the second piston facing the cylinder cover, two second blind holes are formed on one side of the cylinder cover facing the second piston and aligned with the first blind holes, and two ends of the elastic rope are respectively glued into the first blind hole and the second blind hole.

[0010] Specifically, an oil filling pipe is installed on the outer surface of one end of the cylinder close to the annular tube, and a connecting ring fixedly connected to the oil filling pipe is sleeved on one end of the oil filling pipe away from the cylinder, and a sealing cover is installed on the connecting ring through multiple bolts.

[0011] Specifically, the angle adjustment member includes a bent pipe, a bent pipe is provided between the hollow pipe and the blowing pipe, one end of the hollow pipe close to the bent pipe is rotatably connected via a first electric turntable, and one end of the bent pipe away from the hollow pipe is rotatably connected to the blowing pipe via a second electric turntable.

[0012] Specifically, the connecting ring is installed with a ring through multiple bolts, an oil storage cylinder connected and fixed to the ring is inserted in the ring, a fifth piston is slidably installed in the oil storage cylinder, the end of the oil storage cylinder away from the oil filling pipe is closed, an electric push rod is installed at the closed end of the oil storage cylinder, and the movable end of the electric push rod extends into the oil storage cylinder and is connected and fixed to the fifth piston.

[0013] Beneficial effects of the present invention: 1. Control the motors in the first electric turntable and the second electric turntable to work. The motor drives the turbine to rotate through the worm. The two turbines drive the two turbines to rotate respectively. The two turbines drive the blowing port and the bent pipe to rotate respectively, so that the angle between the bent pipe and the hollow pipe changes, and the angle between the blowing pipe and the bent pipe changes, so as to adjust the angle of the blowing pipe according to needs.

[0014] 2. Connect the circuit of the fan and the electric heater so that the fan works to make the air flow into the electric heater, the electric heater heats the air, and then the heated air is blown to the required position of the aircraft through the channel formed by the air duct, the bottom pipe, the elbow and the air outlet, so as to realize the snow removal operation of the aircraft by using hot air, avoid the use of deicing fluid, save costs and protect the environment.

[0015] 3. An annular tube is installed at the bottom of the pod. Insulating oil is injected into the annular tube. Multiple tubes connected to the annular tube are evenly installed on the outer surface of the annular tube. When the main electric turntable drives the pod to move, if the rubber airbag contacts the aircraft, the rubber airbag will be squeezed and deformed. Serve as the first step of buffering.

[0016] 4. After the rubber airbag is squeezed, it drives the first piston to move in the tube toward the annular tube through the guide rod, and the second piston presses the insulating oil in the tube into the annular tube. The insulating oil in the annular tube enters the cylinder. At this time, the first piston moves in the cylinder away from the annular tube, and the spring is in a compressed state. At this time, the rectangular rod drives the conductive sleeve to move along the linear resistance, thereby increasing the resistance on the power supply circuit connected to the power motor in the main electric turntable, making the current of the power motor in the main electric turntable smaller under a constant voltage, so that the speed of the power motor in the main electric turntable is reduced, so that the speed of the main electric turntable driving the pod to move is slowly reduced until the pod stops moving, preventing the power motor in the main electric turntable from suddenly stopping working, and minimizing the influence of the inertia of the pod and the swing arm on the main electric turntable, thereby protecting the main electric turntable, reducing the failure rate of the main electric turntable due to the instantaneous increase in load, and improving the reliability of snow blowing and de-icing for aircraft.

[0017] 5. In the initial state, the insulating oil in the annular tube enters into the tube barrel under the action of the spring rebound force, and the third piston fits with the second piston under the action of the elastic rope rebound force, so that the third piston blocks the circular cavity. Under the restriction of the blocking rod, there is a gap between the second piston and the tube cover to provide installation space for the elastic rope, and under the action of the blocking rod, the insulating oil in one tube barrel enters into the annular tube and will not enter into other tube barrels.

[0018] 6. When the rubber airbag is squeezed, the air inside it will enter the circular cavity in the guide rod, thereby pushing the fourth piston in the circular cavity to move. The fourth piston drives the third piston to move. The third piston first squeezes the insulating oil in the tube. When the rubber airbag is separated from the aircraft, under the action of the spring rebound force, the insulating oil entering the tube forces the rubber airbag to expand. During the expansion of the rubber airbag, its surface tension changes, causing the ice and snow attached to the surface of the rubber airbag to fall off, preventing snow blocks from scratching the surface of the aircraft.

[0019] 7. The linear resistor, conductive sleeve, rectangular rod and other components are hidden in the space formed by the shielding shell and the shielding cover. On the one hand, it protects the linear resistor and other components, and on the other hand, it reduces the impact of ice and snow on the linear resistor and other components, thereby improving the safety of electricity use.

[0020] 8. Because the connecting rod is hidden in the circular cavity, ice and snow will not adhere to the surface of the connecting rod. Therefore, when the surface of the guide rod cannot slide smoothly along the guide hole due to the adhesion of ice and snow, the insulating oil in the tube can still force the first piston to move under the squeeze, so that the conductive sleeve and the linear resistor can slide smoothly, preventing freezing from affecting the adjustment of the resistor size.

[0021] 9. When the pod moves up and down, the electric push rod is controlled to retract, and the electric push rod drives the fifth piston to slide in the oil storage cylinder, so that a part of the insulating oil in the annular tube enters the oil storage cylinder. At this time, the amount of insulating oil in the tube is reduced, so that a part of the guide rod is retracted into the tube, thereby shortening the length of the structure formed by the guide rod and the tube, making it easier to move the pod up and down in a narrow space. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 This is a structural schematic diagram of an aircraft snowblower of the present invention; Figure 2 A three-dimensional view of an aircraft snowblower according to the present invention from another perspective; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 It is a schematic diagram of the assembly of a linear resistor, an annular tube and a pod in an aircraft snowblower of the present invention; Figure 5 It is a schematic diagram of assembling a conductive sleeve, a rectangular rod, a spring, a first piston and an end cover in an aircraft snowblower of the present invention; Figure 6 It is a schematic diagram of the assembly of a blocking rod, an elastic rope, a second piston, a third piston, a rubber airbag, a guide rod and a cylinder cover in an aircraft snowblower of the present invention; Figure 7 It is a cross-sectional assembly diagram of a second piston, a third piston, a guide rod and a rubber airbag in an aircraft snowblower of the present invention; Figure 8 It is a schematic diagram of the assembly of the fourth piston, the third piston and the connecting rod in an aircraft snowblower of the present invention; Fig. 9 It is a schematic diagram of the assembly of an oil storage cylinder and an electric push rod in an aircraft snowblower of the present invention; Fig.10 It is a schematic diagram of the assembly of the fifth piston and the electric push rod in an aircraft snowblower of the present invention; In the figure: 1, carriage, 2, fan, 3, main swing arm, 4, first hose, 5, connecting seat, 6, electric heater, 7, first air duct, 8, second hose, 9, connecting frame, 10, auxiliary swing arm, 11, pod, 12, third hose, 13, main electric turntable, 14, second air duct, 15, shielding shell, 16, auxiliary frame, 17, annular pipe, 18, blowing pipe, 19, rubber airbag, 20, guide rod, 21, tube, 22, hollow pipe, 23, first electric turntable, 24, bent pipe, 25, second electric turntable , 26. The first hydraulic cylinder, 27. The second hydraulic cylinder, 28. The third hydraulic cylinder, 29. The cylinder cover, 30. The blocking cover, 31. The oil filling pipe, 32. The cylinder, 33. The shielding cover, 34. The carrier, 35. The end cover, 36. The rectangular rod, 37. The insulating sleeve, 38. The linear resistor, 39. The conductive sleeve, 40. The first piston, 41. The spring, 42. The blocking rod, 43. The second piston, 44. The third piston, 45. The elastic rope, 46. The fourth piston, 47. The connecting rod, 48. The oil storage cylinder, 49. The electric push rod, 50. The fifth piston. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] Embodiment 1: In order to prevent the pod 11 from colliding with the aircraft when driven by the electric turntable, an anti-collision sensor is installed on the surface of the pod 11. The anti-collision sensor detects the relative position of the pod 11 and the aircraft in real time. When the pod 11 is too close to the aircraft, the anti-collision sensor transmits the detected data to the central processor, and the central processor controls the electric turntable to stop the action immediately. The above method is one of the measures to prevent the pod 11 from colliding with the aircraft. Because the weight of the pod 11 and the swing arm is large, when the electric turntable stops suddenly, the pod 11 and the swing arm will swing under the action of their inertia. At this time, the worm gear on the output end of the power motor in the electric turntable is subjected to a large reaction force, which makes the electric turntable subjected to a large unbalanced load. The probability of failure of the electric turntable is high, causing the electric turntable to be unable to be used normally. At this time, the pod 11 is in the operating area around the aircraft, and it takes more effort to keep the pod 11 away from the aircraft, affecting the efficiency of snow blowing; See also Figure 1-Figure 8 The present invention provides a technical solution: an aircraft snowblower, comprising a carriage 1, in which a hydraulic pump station, an internal combustion engine and a generator are installed, the internal combustion engine provides power for the generator, and the generator provides electrical energy for the hydraulic pump in the hydraulic pump station.

[0025] A main electric turntable 13 is installed on one side of the top of the carriage 1, and a connecting seat 5 is installed on the upper surface of the main electric turntable 13. A main swing arm 3 is rotatably installed in the connecting seat 5 through a pin shaft, and a first hydraulic cylinder 26 is rotatably installed between the main swing arm 3 and the connecting seat 5. The end of the main swing arm 3 away from the connecting seat 5 is hinged to the auxiliary swing arm 10 through a connecting frame 9, and the end of the auxiliary swing arm 10 away from the connecting frame 9 is hinged to a sub-frame 16, and a third hydraulic cylinder 28 is rotatably installed between the sub-frame 16 and the connecting frame 9. A second hydraulic cylinder 27 is rotatably installed between the end of the main swing arm 3 close to the sub-swing arm 10 and the sub-swing arm 10, and a pod 11 is installed on the upper surface of the sub-frame 16. A fan 2 is installed on one side of the connecting seat 5, and a side of the main swing arm 3 An electric heater 6 is installed, the air outlet end of the fan 2 is connected to the air inlet end of the electric heater 6 through a first hose 4, a first air duct 7 is installed at the air outlet end of the electric heater 6, a second air duct 14 is installed on one side of the auxiliary swing arm 10, a second hose 8 is installed between the first air duct 7 and the second air duct 14, an end of the second air duct 14 away from the second hose 8 is connected to a hollow tube 22 through a third hose 12, the hollow tube 22 is installed at the bottom of the pod 11, a bent tube 24 is provided between the hollow tube 22 and the blowing tube 18, an end of the hollow tube 22 close to the bent tube 24 is rotatably connected through a first electric turntable 23, and an end of the bent tube 24 away from the hollow tube 22 is connected to the blowing tube 18 through a second electric turntable 25 Rotary connection; The motors in the first electric turntable 23 and the second electric turntable 25 are controlled to work. The motor drives the turbine to rotate through the worm gear. The two turbines respectively drive the blowing pipe and the curved pipe 24 to rotate, so that the angle between the curved pipe 24 and the hollow pipe 22 is changed, and the angle between the blowing pipe 18 and the curved pipe 24 is changed, so that the angle of the blowing pipe 18 can be adjusted according to needs, and the circuit of the fan 2 and the electric heater 6 are connected, so that the fan 2 works to make air flow into the electric heater 6, and the electric heater 6 heats the air. Subsequently, the heated air is blown to the required position of the aircraft through the channel formed by the first air duct 7, the second air duct 14, the hollow pipe 22, the curved pipe 24 and the blowing pipe 18, so that the aircraft can be snowed by hot air, and the use of deicing fluid can be avoided, thus saving costs and protecting the environment.

[0026] An electric turntable is a mechanical device used to achieve rotational motion. Its main structure usually includes the following parts: a base: supports the entire turntable structure and provides a stable installation foundation; a turntable: carries the workpiece or equipment to achieve rotational motion; a motor: provides rotational power, common ones include servo motors, stepper motors, etc., and the selection depends on the required speed and accuracy; a reducer: reduces the motor speed, increases the torque, and ensures smooth operation of the turntable; a transmission mechanism: transmits the rotational motion of the motor to the turntable. A common transmission method is a worm gear transmission. Therefore, the structure and working principle of the electric turntable have been fully disclosed in the prior art and will not be repeated here.

[0027] The lower side of the hollow tube 22 is provided with an annular tube 17 filled with insulating oil. The annular tube 17 is installed at the bottom of the nacelle 11 through a bracket. A plurality of tubes 21 communicating with the annular tube 17 are installed on the surface of the annular tube 17. One tube 21 among the plurality of tubes 21 is arranged vertically. The other tubes 21 except the vertically arranged tube 21 are arranged horizontally. A detachable tube cover 29 is installed at one end of the tube 21 away from the annular tube 17. A guide hole is opened in the middle of one side of the tube cover 29. A guide rod 20 is inserted in the guide hole. The guide rod 20 is located at one end of the tube 21. A second piston 43 is installed, and the second piston 43 is slidably installed in the tube 21. A carrier plate 34 is installed at one end of the guide rod 20 outside the tube 21, and an expandable rubber airbag 19 is installed on the side of the carrier plate 34 away from the guide rod 20. An annular tube 17 is installed at the bottom of the pod 11, and insulating oil is injected into the annular tube 17. A plurality of tubes 21 connected with the annular tube 17 are evenly installed on the outer surface of the annular tube 17. When the main electric turntable 13 drives the pod 11 to move, if the rubber airbag 19 contacts the aircraft, the rubber airbag 19 will be deformed after being squeezed, which plays the first step of buffering.

[0028] A barrel 32 communicating with the annular tube 17 is installed on the side of the outer surface of the annular tube 17 facing away from the vertically arranged tube 21, and a detachable end cover 35 is installed on the end of the barrel 32 away from the annular tube 17. A rectangular hole is opened in the middle of one side of the end cover 35, and a rectangular rod 36 is inserted in the rectangular hole. The rectangular rod 36 cooperates with the rectangular hole to prevent the conductive sleeve 39 from rotating.

[0029] A first piston 40 is installed at one end of the rectangular rod 36 in the cylinder 32, and the first piston 40 is slidably installed in the cylinder 32. A spring 41 is provided between the first piston 40 and the end cover 35, and the spring 41 is sleeved on the rectangular rod 36. A conductive sleeve 39 is installed at one end of the rectangular rod 36 outside the cylinder 32 through an insulating seat. A linear resistor 38 is inserted in the conductive sleeve 39 to make sliding contact with the conductive sleeve 39. The linear resistor 38 is arranged parallel to the cylinder 32. The end of the linear resistor 38 close to the annular tube 17 and the outer surface of the conductive sleeve 39 are both installed with wiring ears electrically connected to the wires in the power motor in the main electric turntable 13. After the rubber airbag 19 is squeezed, the first piston 40 is driven by the guide rod 20 to move in the tube 21 toward the annular tube 17. The second piston 43 presses the insulating oil in the tube 21 into the annular tube 17, and the insulating oil in the annular tube 17 enters the cylinder 32. At this time, the first piston 40 moves in the cylinder 32 in the direction away from the annular tube 17, and the spring 41 is in a compressed state. At this time, the rectangular rod 36 drives the conductive sleeve 39 to move along the linear resistor 38, thereby increasing the resistance on the power supply circuit of the power motor connected to the main electric turntable 13, so that the current of the power motor in the main electric turntable 13 becomes smaller under a constant voltage, so that the speed of the power motor in the main electric turntable 13 is reduced, so that the speed of the main electric turntable 13 driving the pod 11 to move is slowly reduced until the pod 11 stops moving, preventing the power motor in the main electric turntable 13 from suddenly stopping working, and minimizing the influence of the inertia of the pod 11 and the swing arm on the main electric turntable 13, thereby protecting the main electric turntable 13, reducing the failure rate of the main electric turntable 13 due to the instantaneous increase in load, and improving the reliability of snow blowing and de-icing for aircraft.

[0030] A shielding cover 33 connected and fixed to the cylinder 32 is sleeved on the cylinder 32, and a shielding shell 15 is provided on the side of the shielding cover 33 away from the annular tube 17. The end of the shielding shell 15 close to the shielding cover 33 is open, and the open end of the shielding shell 15 is connected to the shielding cover 33 by multiple bolts. The end of the linear resistor 38 away from the annular tube 17 is sleeved with an insulating sleeve 37 adhered to the linear resistor 38, and the insulating sleeve 37 is installed in the shielding cover 33. The rectangular rod 36 and the conductive sleeve 39 are arranged in the shielding shell 15. Two threading holes are provided on one side of the shielding cover 33, so that the linear resistor 38, the conductive sleeve 39, the rectangular rod 36 and other components are hidden in the space formed by the shielding shell 15 and the shielding cover 33. On the one hand, it plays a role in protecting components such as the linear resistor 38, and on the other hand, it reduces the influence of ice and snow on components such as the linear resistor, thereby improving the safety of electricity use.

[0031] Embodiment 2: As can be seen from the above description, a portion of the guide rod 20 is exposed to the outside world, and ice and snow will adhere to the surface of the guide rod 20 in cold weather, that is, the contact portion between the guide rod 20 and the cylinder cover 29 will be frozen. At this time, the guide rod 20 cannot smoothly drive the second piston 43 to move, so that the conductive sleeve 39 cannot slide smoothly along the linear resistor 38, thereby affecting the adjustment of the resistance of the power motor in the main electric turntable 13, and making the anti-collision failure; See also Figure 6-Figure 8 A circular cavity penetrating the guide rod 20 is processed in the guide rod 20, a connecting rod 47 is inserted in the circular cavity, the guide rod 20 penetrates the second piston 43, the end of the guide rod 20 away from the second piston 43 penetrates the carrier 34, the end of the connecting rod 47 close to the second piston 43 is connected and fixed with the third piston 44, the third piston 44 is arranged on the side of the second piston 43 away from the cylinder cover 29, the third piston 44 is slidably installed in the tube 21, the end of the connecting rod 47 in the circular cavity is installed with the fourth piston 46, the fourth piston 46 is slidably installed in the circular cavity, the side of the second piston 43 away from the third piston 44 is symmetrically installed with two blocking rods 42, the blocking rod 42 is away from the second piston One end of 43 is in contact with the cylinder cover 29, the blocking rod 42 is arranged in parallel with the guide rod 20, and two elastic ropes 45 in a stretched state are installed on the side of the second piston 43 away from the third piston 44, and one end of the elastic rope 45 away from the second piston 43 is connected and fixed to the cylinder cover 29, and the two elastic ropes 45 and the two blocking rods 42 are arranged alternately, wherein two first blind holes are provided on the side of the second piston 43 facing the cylinder cover 29, and two second blind holes aligned with the first blind holes are provided on the side of the cylinder cover 29 facing the second piston 43, so that the two ends of the elastic rope 45 are respectively adhered in the first blind hole and the second blind hole by glue, so as to improve the stability of the installation of the elastic rope 45.

[0032] In the initial state, the insulating oil in the annular tube 17 enters the tube 21 under the action of the spring 41, and the third piston 44 fits with the second piston 43 under the action of the elastic rope 45, so that the third piston 44 blocks the circular cavity. Under the restriction of the blocking rod 42, there is a gap between the second piston 43 and the tube cover 29, providing an installation space for the elastic rope 45. Under the action of the blocking rod 42, the insulating oil in one tube 21 enters the annular tube 17 but does not enter the other tubes 21. When the airbag 19 is squeezed, the air inside it will enter the circular cavity in the guide rod 20, thereby pushing the fourth piston 46 in the circular cavity to move, and the fourth piston 46 drives the third piston 44 to move. The third piston 44 first squeezes the insulating oil in the tube 21. When the rubber airbag 19 is separated from the aircraft, under the action of the rebound force of the spring 41, the insulating oil entering the tube 21 forces the rubber airbag 19 to expand. During the expansion of the rubber airbag 19, its surface tension changes, causing ice and snow attached to the surface of the rubber airbag 19 to fall off, preventing snow blocks from scratching the surface of the aircraft.

[0033] Because the connecting rod 47 is hidden in the circular cavity, ice and snow will not adhere to the surface of the connecting rod 47. Therefore, when the surface of the guide rod 20 cannot slide smoothly along the guide hole due to the adhesion of ice and snow, the insulating oil in the tube 21 can still force the first piston 40 to move under the squeeze, so that the conductive sleeve 39 and the linear resistor 38 can slide smoothly, preventing freezing from affecting the adjustment of the resistance size.

[0034] Embodiment 3: When the first hydraulic cylinder 26, the second hydraulic cylinder 27, and the third hydraulic cylinder 28 cooperate with each other to adjust the up and down position of the pod 11, because the structure formed by the guide rod 20, the tube 21 and other components is relatively long, that is, one end of the guide rod 20 extends to the outside of the bottom of the pod 11, so that the pod 11 needs a larger space when moving up and down, when the pod 11 is in a narrow space somewhere in the aircraft, the guide rod 20 and other components will form movement interference with the aircraft components; See also Figure 3 , Fig. 9 and Fig.10An oil filling pipe 31 is installed on the outer surface of one end of the cylinder 32 close to the annular tube 17, and a connecting ring connected and fixed to the oil filling pipe 31 is sleeved on one end of the oil filling pipe 31 away from the cylinder 32. The connecting ring is installed with a blocking cover 30 through multiple bolts. After removing the blocking cover 30, the connecting ring is installed with a ring through multiple bolts, wherein an oil storage cylinder 48 connected and fixed to the ring is inserted in the ring, and a fifth piston 50 is slidably installed in the oil storage cylinder 48. The end of the oil storage cylinder 48 away from the oil filling pipe 31 is closed, and an electric push rod 49 is installed at the closed end of the oil storage cylinder 48. The movable end of the electric push rod 49 extends into the oil storage cylinder 48 and is fixedly connected to the fifth piston 50. When the pod 11 moves up and down, the electric push rod 49 is controlled to contract, and the electric push rod 49 drives the fifth piston 50 to slide in the oil storage cylinder 48, so that a part of the insulating oil in the annular tube 17 enters the oil storage cylinder 48. At this time, the amount of insulating oil in the tube 21 is reduced, so that a part of the guide rod 20 is retracted into the tube 21, thereby shortening the length of the structure formed by the guide rod 20 and the tube 21, which is convenient for moving the pod 11 up and down in a narrow space.

[0035] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An aircraft snowblower, comprising a compartment (1), characterized in that: A hydraulic pump station, an internal combustion engine and a generator are installed in the carriage (1); a main electric turntable (13) is installed on one side of the top of the carriage (1); a connecting seat (5) is installed on the upper surface of the main electric turntable (13); a main swing arm (3) is rotatably installed in the connecting seat (5) via a pin shaft; a first hydraulic cylinder (26) is rotatably installed between the main swing arm (3) and the connecting seat (5); an end of the main swing arm (3) away from the connecting seat (5) is hinged to an auxiliary swing arm (10) via a connecting frame (9); an end of the auxiliary swing arm (10) away from the connecting frame (9) is hinged to an auxiliary frame (16); a third hydraulic cylinder (28) is rotatably installed between the auxiliary frame (16) and the connecting frame (9); a second hydraulic cylinder (27) is rotatably installed between the end of the main swing arm (3) close to the auxiliary swing arm (10) and the auxiliary swing arm (10); and a second hydraulic cylinder (28) is installed on the upper surface of the auxiliary frame (16). A pod (11) is provided, a fan (2) is installed on one side of the connection seat (5), an electric heater (6) is installed on one side of the main swing arm (3), an air outlet end of the fan (2) is connected to an air inlet end of the electric heater (6) via a first hose (4), a first air delivery pipe (7) is installed on the air outlet end of the electric heater (6), a second air delivery pipe (14) is installed on one side of the auxiliary swing arm (10), a second hose (8) is installed between the first air delivery pipe (7) and the second air delivery pipe (14), an end of the second air delivery pipe (14) away from the second hose (8) is connected to a hollow pipe (22) via a third hose (12), the hollow pipe (22) is installed at the bottom of the pod (11), an end of the hollow pipe (22) away from the second air delivery pipe (14) is installed with a blowing pipe (18) via an angle adjustment member, and an anti-collision member is installed at the bottom of the pod (11).

2. The aircraft snowblower according to claim 1, characterized in that: The anti-collision component comprises an annular tube (17), an annular tube (17) filled with insulating oil is provided at the lower side of the hollow tube (22), the annular tube (17) is installed at the bottom of the pod (11) through a bracket, a plurality of tubes (21) in communication with the annular tube (17) are installed on the surface of the annular tube (17), one tube (21) of the plurality of tubes (21) is arranged vertically, and the other tubes (21) of the plurality of tubes (21) except the vertically arranged tube (21) are arranged horizontally, and a detachable tube cover (29) is installed at one end of the tube (21) away from the annular tube (17), the tube cover (29) A guide hole is provided in the middle of one side, a guide rod (20) is inserted in the guide hole, a second piston (43) is mounted on one end of the guide rod (20) located in the tube (21), the second piston (43) is slidably mounted in the tube (21), a carrier plate (34) is mounted on one end of the guide rod (20) located outside the tube (21), an inflatable rubber airbag (19) is mounted on one side of the carrier plate (34) facing away from the guide rod (20), and a control component for controlling the current of the power motor in the main electric turntable (13) is mounted on one side of the outer surface of the annular tube (17) facing away from the vertically arranged tube (21).

3. The aircraft snowblower according to claim 2, characterized in that: The control member comprises a cylinder (32). A cylinder (32) communicating with the annular tube (17) is installed on a side of the outer surface of the annular tube (17) away from the vertically arranged tube (21). A detachable end cover (35) is installed on one end of the cylinder (32) away from the annular tube (17). A rectangular hole is opened in the middle of one side of the end cover (35). A rectangular rod (36) is inserted in the rectangular hole. A first piston (40) is installed at one end of the rectangular rod (36) located in the cylinder (32). The first piston (40) is slidably installed in the cylinder (32). A spring is provided between the first piston (40) and the end cover (35). (41), the spring (41) is sleeved on the rectangular rod (36), one end of the rectangular rod (36) outside the cylinder (32) is installed with a conductive sleeve (39) through an insulating seat, a linear resistor (38) is inserted in the conductive sleeve (39) and is in sliding contact with the conductive sleeve (39), the linear resistor (38) is arranged parallel to the cylinder (32), one end of the linear resistor (38) close to the annular tube (17) and the outer surface of the conductive sleeve (39) are both installed with wiring ears electrically connected to the wires in the power motor in the main electric turntable (13), and a shielding member for hiding the linear resistor (38) is installed on the cylinder (32).

4. The aircraft snowblower according to claim 3, characterized in that: The shielding member comprises a shielding cover (33), the shielding cover (33) being sleeved on the cylinder (32) and being connected and fixed to the cylinder (32), a shielding shell (15) being provided on a side of the shielding cover (33) away from the annular tube (17), the shielding shell (15) having an end close to the shielding cover (33) being open, the open end of the shielding shell (15) being connected to the shielding cover (33) by means of a plurality of bolts, an insulating sleeve (37) being sleeved on an end of the linear resistor (38) away from the annular tube (17), the insulating sleeve (37) being adhered to the linear resistor (38), the insulating sleeve (37) being installed in the shielding cover (33), the rectangular rod (36) and the conductive sleeve (39) being arranged in the shielding shell (15), and two threading holes being provided on one side of the shielding cover (33).

5. The aircraft snowblower according to claim 2, characterized in that: A circular cavity is machined inside the guide rod (20) and penetrates the guide rod (20). A connecting rod (47) is inserted into the circular cavity. The guide rod (20) penetrates the second piston (43). The end of the guide rod (20) away from the second piston (43) penetrates the carrier plate (34). The end of the connecting rod (47) close to the second piston (43) is connected and fixed with a third piston (44). The third piston (44) is arranged on a side of the second piston (43) away from the cylinder cover (29). The third piston (44) is slidably mounted in the tube (21). The end of the connecting rod (47) in the circular cavity is mounted with a fourth piston (46). The fourth piston (46) is slidably mounted in the circular cavity. Two blocking rods (42) are symmetrically mounted on a side of the second piston (43) facing away from the third piston (44). One end of the blocking rod (42) away from the second piston (43) contacts the cylinder cover (29). The blocking rod (42) and the guide rod (20) are arranged in parallel. Two elastic ropes (45) in a stretched state are mounted on a side of the second piston (43) facing away from the third piston (44). One end of the elastic rope (45) away from the second piston (43) is connected and fixed to the cylinder cover (29). The two elastic ropes (45) and the two blocking rods (42) are arranged alternately.

6. The aircraft snowblower according to claim 5, characterized in that: Two first blind holes are formed on a side of the second piston (43) facing the cylinder cover (29), and two second blind holes are formed on a side of the cylinder cover (29) facing the second piston (43) and aligned with the first blind holes. The two ends of the elastic rope (45) are respectively glued into the first blind hole and the second blind hole.

7. The aircraft snowblower according to claim 3, characterized in that: An oil injection pipe (31) is mounted on the outer surface of one end of the cylinder (32) close to the annular tube (17), and a connecting ring fixedly connected to the oil injection pipe (31) is sleeved on one end of the cylinder (32) away from the cylinder (32), and a sealing cover (30) is mounted on the connecting ring via a plurality of bolts.

8. The aircraft snowblower according to claim 1, characterized in that: The angle adjustment member comprises a curved pipe (24), wherein the curved pipe (24) is provided between the hollow pipe (22) and the blowing pipe (18), wherein one end of the hollow pipe (22) close to the curved pipe (24) is rotatably connected via a first electric rotating table (23), and one end of the curved pipe (24) away from the hollow pipe (22) is rotatably connected to the blowing pipe (18) via a second electric rotating table (25).

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