CN113232885B - Simulated airplane loading vehicle - Google Patents

Abstract

The invention discloses a loading vehicle for simulating an airplane, which comprises a loading system, a frame system, a lifting hydraulic system and an electronic detection system, wherein the loading system comprises a loading platform, a loading platform and a loading platform; the load-carrying system is detachably connected with the frame system, the load-carrying system comprises airplane tires and hubs which can be assembled with different models, and loads applied to the ground by airplanes with different bearing capacities during running are simulated by assembling clump weights with different masses; the frame system comprises a vehicle body girder frame, a guide post, a traction turning front shaft and a traction rear shaft, the frame system is connected with the load system through the guide post, and the traction turning front shaft enables the whole vehicle to have the functions of steering, running, braking and the like; the hydraulic pump station and the electronic detection system are installed on the front traction rotation shaft, the lifting hydraulic system is installed on the vehicle body girder frame, and the hydraulic pump station provides power for the lifting hydraulic system. The invention can simulate and calculate the load applied to the ground when the airplane runs, and the whole airplane is designed in a bilateral symmetry way, and the center of gravity has no unbalance load basically.

Description

A simulated aircraft loading vehicle

technical field

The invention relates to the technical field of aircraft loading vehicles, in particular to a simulated aircraft loading vehicle.

Background technique

When the aircraft is taking off, landing and rolling, the main wheels of the aircraft will exert a great load on the road surface. When studying the airport pavement, it is necessary to consider the influence of the aircraft load on the pavement structure and material. From the loading point of view, the most ideal way to do the experiment is to directly let the real aircraft pass and load the pavement, but the maneuvering of the aircraft is very difficult. It involves a series of issues such as cost, safety, and venue. How to obtain the approximate loading effect of the aircraft while being convenient and cheap is a problem that needs to be solved urgently.

SUMMARY OF THE INVENTION

In view of the above existing problems, the present invention aims to provide a simulated aircraft loading vehicle, which can simulate and calculate the load applied by the main wheel of the aircraft to the road surface when the aircraft of different bearing capacities and types rolls, and can obtain the approximate loading of the aircraft. Effective, convenient and cheap.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

A simulated aircraft loading vehicle is characterized in that: it comprises a load-carrying system, a frame system, a lifting hydraulic system and an electronic detection system;

The load-carrying system includes an aircraft main wheel, a tire adapter, a pressure sensor, a load beam, a frame plate, a guide bush and a counterweight; the pressure sensor is installed at the bottom of the load beam, and the tire adapter is installed At the bottom of the pressure sensor, and the main wheel of the aircraft is installed under the load beam through the tire adapter; the top of the load beam is provided with frame plates all around, and the frame plate surrounds A counterweight block is arranged in the formed space, and a plurality of guide sleeves are fixed on the outer side wall of the frame plate;

The vehicle frame system includes a vehicle body frame frame, a guide column, a traction steering front axle and a traction rear axle, a plurality of guide columns matched with the guide sleeves are installed on the vehicle body frame frame, and the load-carrying system is connected with the guide sleeve. The frame system is detachably connected through the guide sleeve and the guide column; the front end bottom of the body frame is provided with a traction steering front axle, and the rear end bottom of the body frame is provided with a traction rear axle ;

A hydraulic pump station and an electronic detection system are installed on the traction steering front axle, the lifting hydraulic system is installed on the frame of the vehicle body, and the hydraulic pump station provides power for the lifting hydraulic system.

Further, the tire adapter includes an adapter body and a main axle, the adapter body includes a first mounting plate, an outer sealing plate, an inner sealing plate and a side plate, and the first mounting plate is connected to the The bottom of the pressure sensor is detachably connected, the outer sealing plate and the inner sealing plate are fixed in parallel on the bottom of the first mounting plate, and the outer sealing plate and the inner sealing plate are both stepped structures, A side plate is filled between the outer sealing plate and the inner sealing plate;

The adapter body is provided with a main axle near the bottom, the main axle penetrates the adapter body, and a sleeve and a shaft sleeve are provided on the outer shell of the main axle, and the sleeve is located in the adapter In the body, the shaft sleeve is detachably installed on the inner side of the inner sealing plate;

A limit plate is detachably installed on the outer side of the outer cover plate, the limit plate is located above the main axle, and the bottom of the limit plate is abutted with the top of the main axle.

Further, the pressure sensor is a wheel-spoke pressure sensor, and the number of the pressure sensor is four, the top of the pressure sensor is provided with a second mounting plate, the bottom is provided with a third mounting plate, the four said The pressure sensors are symmetrically distributed between the second mounting plate and the third mounting plate, and the force-bearing surface of the pressure sensor is in contact with the second mounting plate; the second mounting plate and the bottom of the load-bearing beam Removably connected, the third mounting plate is detachably connected with the first mounting plate.

Further, a plurality of limiting square tubes for limiting the position of the counterweight are fixed on the upper surface of the load-bearing beam, and a plurality of tension ears are evenly fixed around the load-bearing beam; the A hoisting connection lug is installed at the front and rear of the load beam, and the hoisting connection lug is used to connect the lifting hydraulic system;

Four corners of the load-bearing beam are fixed with a guide sleeve mounting plate, and the guide sleeve is fixed on the guide sleeve installation plate.

Further, the body frame frame includes two frame beams and two frame longitudinal beams, the two frame beams and the two frame longitudinal beams enclose a hollow frame, and the two frame longitudinal beams The bottom is fixed with a plurality of reinforcing beams, the reinforcing beams are parallel to the frame beams, and the reinforcing beams are provided with first fixing holes for fixed installation with the load-bearing beams;

Both ends of the two frame beams are provided with guide columns, and the middle parts of the two frame beams are provided with oil cylinder mounting seats.

Further, there are two lifting hydraulic systems, and the two lifting hydraulic systems are respectively installed on the oil cylinder mounting seats on the two frame beams;

Each of the lifting hydraulic systems includes a hydraulic cylinder mounted on the cylinder mounting seat, two sprockets are symmetrically mounted on the top of the hydraulic cylinder through a support axis, and a matching sprocket is mounted on each of the sprockets. a chain, one end of the chain is fixedly connected with the oil cylinder mounting seat, and the other end of the chain is fixedly connected with the lifting connecting ear;

The two sprockets located at the top of the same hydraulic cylinder are provided with chain anti-dropping devices for preventing the chains from loosening and falling off, and the chain anti-dropping devices are fixedly connected with the support shaft;

The hydraulic pump station provides power, control, auxiliary and working medium for the hydraulic cylinder.

Further, the traction steering front axle includes a front traction tripod, two front axles are symmetrically arranged at the bottom of the rear end of the front traction tripod, and a front traction tire is installed on the bottom of each of the front axles; A first front axle reinforcing beam and a second front axle reinforcing beam are fixed between the front axles;

The top of the rear end of the front traction tripod is provided with a slewing bearing, and the top of the slewing bearing is provided with an upper adapter plate, and the upper adapter plate is fixedly connected with the frame beam at the front end; the hydraulic pump station and the An electronic detection system is mounted on the upper adapter plate.

Further, the rear end of the front traction tripod is provided with a support frame, the middle of the support frame is provided with a connecting ring, and both sides of the connecting ring are provided with two connecting ears, between the two connecting ears. The distance between the front towing tripods matches the width of the rear end of the front traction tripod, and the two connecting ears are clipped into both sides of the rear end corresponding to the front traction tripod, and are fixedly installed through the front traction frame pins of the front traction frame;

Two triangular front traction frame gussets are respectively fixed at the two connecting ears on the outside, the upper front traction frame gusset is used to fix the support frame and the connecting ears, and the lower front traction frame gusset is used to fix the support frame and the connecting ears. for fixing the connecting ear and the corresponding front axle;

Front traction frame spring lugs are provided on the support frame corresponding to the two rear ends of the front traction tripod, and front traction frame spring lugs are correspondingly arranged on the upper surfaces of the two rear ends of the front traction tripod. A front tow frame spring is connected between the two front draw frame spring support ears corresponding to each other;

The slewing bearing is located above the connecting ring, and the slewing bearing and the connecting ring are provided with installation holes corresponding to each other.

Further, the traction rear axle includes a rear traction tripod, the front end of the rear traction tripod is symmetrically provided with two rear axles, each rear axle is mounted with a rear traction tire; between the two rear axles A rear axle reinforcement beam is fixed;

The two front ends of the rear traction tripod are respectively provided with rear traction frame hinge seats, the front side of the rear traction frame hinge seat is fixed with a plurality of rear traction frame angle plates in parallel up and down, and the rear axle is connected to the rear traction frame. The hinge seats of the traction frame are fixedly connected through the rear traction frame angle plate;

The hinge seat of the rear traction frame and the front end of the corresponding rear traction tripod are fixedly connected through the pin shaft of the rear traction frame;

The two rear axles and the two front ends of the rear traction tripod are provided with rear traction frame spring support ears, and a rear traction frame spring is connected between the two rear traction frame spring support ears corresponding to each other;

Rear traction frame inclined beams are fixed on the inner sides of the two rear axles, and the rear axles and the tops of the rear traction frame inclined beams are fixedly connected with the bottom of the vehicle body frame frame.

Further, the electronic detection system includes a mobile power supply, an intelligent recorder, a weighing module, a speed measuring module and a temperature control device, the mobile power supply provides electrical energy for the intelligent recorder, and the weighing module will detect the detected load. The weight signal of the system is converted into an analog signal for reading by the intelligent recorder, and the speed measurement module converts the detected rotation output square wave signal of the main wheel of the aircraft into an analog signal for reading by the intelligent recorder. A sound and light alarm device is provided, the sound and light alarm device is used to give an alarm when the load system is overweight, and the temperature control device is used to adjust the working environment temperature of all electrical components.

The beneficial effects of the present invention are: compared with the prior art, the improvement of the present invention is:

1. The aircraft loading vehicle proposed in the present invention is not disclosed in the prior art. It is a special test equipment that can simulate and calculate the load applied by the main wheel of the aircraft to the road surface when the aircraft is rolling, and can obtain the approximate loading of the aircraft. Effective, convenient and cheap.

2. The aircraft loading truck proposed in the present invention realizes the simulation of different bearing capacities and different types of aircraft by assembling counterweight blocks of different qualities and installing different types of aircraft main wheels. The main wheel of the aircraft is subjected to a simulated loading test, which is applicable to a wide range of applications.

3. In the present invention, the aircraft loading vehicle uses the guide column and other structures to optimize the load bearing form, effectively utilizes the advantages of the counterweight, and maximizes the utilization rate of the counterweight.

4. The whole vehicle of the simulated aircraft loading vehicle of the present invention has the function of driving and steering, which is convenient for the towing and no-load transition. A slewing bearing is installed on the front axle of the traction steering to meet the steering and locking functions; the whole vehicle is symmetrically designed, and there is basically no eccentric load in the center.

Description of drawings

FIG. 1 is a schematic structural diagram of a simulated aircraft loading vehicle of the present invention.

FIG. 2 is a front view of the structure of the simulated aircraft loading vehicle of the present invention.

FIG. 3 is a top view of the structure of the simulated aircraft loading vehicle of the present invention.

FIG. 4 is a schematic structural diagram of the load-carrying system of the present invention.

FIG. 5 is a schematic structural diagram of the tire adapter frame of the present invention.

FIG. 6 is a schematic diagram of the internal structure of the tire adapter of the present invention.

FIG. 7 is a side view in the direction A of FIG. 6 of the present invention.

FIG. 8 is a side view in the direction B of FIG. 6 of the present invention.

FIG. 9 is an axonometric view of the installation structure of the pressure sensor of the present invention.

Fig. 10 is a front view of the installation structure of the pressure sensor of the present invention.

FIG. 11 is a cross-sectional view along the CC direction in FIG. 10 of the present invention.

FIG. 12 is a schematic diagram of the structure of the load-bearing beam of the present invention.

Figure 13 is a schematic diagram of the structure of the frame plate of the present invention.

FIG. 14 is a schematic diagram of the frame structure of the vehicle body frame of the present invention.

FIG. 15 is a top view of the frame structure of the vehicle body frame according to the present invention.

FIG. 16 is a schematic diagram of the structure of the guide sleeve of the present invention.

Figure 17 is an axonometric view of the front axle of the traction steering according to the present invention.

Fig. 18 is a partial enlarged view of part D in Fig. 17 of the present invention.

FIG. 19 is a schematic structural diagram of the front traction tripod of the present invention.

Figure 20 is a schematic diagram of the structure of the support frame of the present invention.

Figure 21 is a top view of the structure of the traction steering front axle of the present invention.

FIG. 22 is a top view of the structure of the upper adapter plate of the present invention.

Figure 23 is a front view of the structure of the upper adapter plate of the present invention.

FIG. 24 is a top view of the frame structure of the adapter plate of the present invention.

Figure 25 is a schematic diagram of the structure of the traction rear axle of the present invention.

Figure 26 is a front view of the structure of the traction rear axle of the present invention.

Fig. 27 is a partial enlarged view of part E in Fig. 26 of the present invention.

Fig. 28 is a top view of the structure of the traction rear axle of the present invention.

Fig. 29 is a partial enlarged view of part F in Fig. 28 of the present invention.

Figure 30 is a side view of the traction rear axle structure of the present invention.

Figure 31 is a top view of the structure of the hinge seat of the rear traction frame of the present invention.

Figure 32 is a front view of the structure of the hinge seat of the rear traction frame of the present invention.

Figure 33 is a side view of the structure of the hinge seat of the rear traction frame of the present invention.

Figure 34 is a schematic structural diagram of the lifting hydraulic system of the present invention.

Figure 35 is a schematic diagram of the lifting hydraulic system of the present invention.

Figure 36 is a schematic diagram of the electronic detection system system of the present invention.

FIG. 37 is a schematic diagram of the electrical apparatus of the electronic detection system of the present invention.

Fig. 38 is a working flow chart of the simulated aircraft loading vehicle of the present invention.

Among them: 100-loading system, 200-frame system, 300-lifting hydraulic system, 400-electronic detection system, 500-traction steering front axle, 600-traction rear axle, 1-aircraft main wheel, 2-tire adapter , 201-first mounting plate, 202-outer sealing plate, 203-inner sealing plate, 204-side plate, 205-main axle, 206-sleeve, 207-shaft sleeve, 208-limiting plate, 3-pressure sensor , 301-Second mounting plate, 302-Third mounting plate, 4-Load beam, 401-Box longitudinal beam, 402-I-beam, 403-Limit square tube, 404-Tightening lug, 405-Lifting connection lug, 406-guide bushing mounting plate, 407-threaded rod, 5-frame plate, 501-rear plate, 502-side plate, 503-left front plate, 504-right front plate, 505-hinge, 506-bolt lock, 6 -Guide bush, 601-Guide bush body, 602-Guide bush bracket, 7-Counterweight, 8-Car body frame, 801-Frame beam, 802-Frame longitudinal beam, 803-Reinforcement beam, 804-Cylinder mount , 805-first fixing hole, 9-guide column, 10-hydraulic pump station, 11-front traction tripod, 12-front axle, 13-front traction tire, 14-first front axle reinforcement beam, 15-second front Shaft reinforcement beam, 16-slewing bearing, 17-upper adapter plate, 1701- adapter plate frame, 1702-ring frame, 1703-installation flange plate, 1704-first pump station installation plate, 1705-second pump Station Mounting Plate, 1706-Third Pumping Station Mounting Plate, 1707-Electrical Mounting Plate, 1708-Sloping Plate, 18-Support Frame, 19-Connecting Ring, 20-Connecting Ear, 21-Front Draw Frame Pin, 22-Front Traction frame angle plate, 23- Front traction frame spring lugs, 24- Front traction frame spring, 25- Mounting hole, 26- Rear traction tripod, 27- Rear axle, 28- Rear traction tire, 29- Rear traction frame hinge Seat, 30- Rear draw frame angle plate, 31- Rear draw frame pin, 32- Rear axle reinforcement beam, 33- Rear draw frame spring lug, 34- Rear draw frame spring, 35- Rear draw frame inclined beam, 36 -Hydraulic cylinder, 37-support shaft, 38-sprocket, 39-chain, 40-chain anti-drop device, 41-mobile power supply, 42-intelligent recorder, 43-weighing module, 44-speed measuring module, 45-temperature Control device, 46 - sound and light alarm device.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments.

Referring to a simulated aircraft loading vehicle shown in Figures 1-37, it includes a loading system 100, a frame system 200, a lifting hydraulic system 300 and an electronic detection system 400;

The load system 100 includes an aircraft main wheel 1, a tire adapter 2, a pressure sensor 3, a load beam 4, a frame plate 5, a guide sleeve 6 and a counterweight 7; the pressure sensor 3 is installed on the load beam 4. The bottom of the tire adapter 2 is installed at the bottom of the pressure sensor 3, and the aircraft main wheel 1 is installed under the load beam 4 through the tire adapter 2; the load beam 4 The top of the frame plate 5 is provided with frame plates 5 all around, the space enclosed by the frame plate 5 is provided with a counterweight 7, and a plurality of guide sleeves 6 are fixed on the outer side wall of the frame plate 5;

Specifically, the tire adapter 2 includes an adapter body and a main axle 205 . The adapter body includes a first mounting plate 201 , an outer sealing plate 202 , an inner sealing plate 203 and a side plate 204 . A mounting plate 201 is detachably connected to the bottom of the pressure sensor 3 , the outer sealing plate 202 and the inner sealing plate 203 are welded parallel to the bottom of the first mounting plate 201 , and the outer sealing plate 202 and The inner sealing plate 203 has a stepped structure, a side plate 204 is filled between the outer sealing plate 202 and the inner sealing plate 203, and the outer sealing plate 202, the inner sealing plate 203 and the side plate 204 form one The overall stepped structure;

The adapter body is provided with a main axle 205 near the bottom, the main axle 205 penetrates the adapter body, and the main axle 205 is covered with a sleeve 206 and a shaft sleeve 207. The sleeve 206 Located in the adapter frame body, the shaft sleeve 207 is detachably installed on the inner side of the inner sealing plate 203 through screws;

A limit plate 208 is detachably installed on the outer side of the outer cover plate 202 by screws. The limit plate 208 is located above the main axle 205 , and the bottom of the limit plate 208 is connected to the top of the main axle 205 . Fittingly, the connection between the limiting plate 208 and the main axle 205 is in the form of a keyway to limit the axial movement of the main axle 205 .

The tires and hubs of different aircrafts such as J-10, J-11, Yun-8, Yun-20, H-6 can be assembled on the main wheel shaft 205, and the adaptation design is carried out by replacing the aircraft connecting shaft, and the aircraft is driven according to the actual weight of the main wheel of the aircraft. . The adapter body is made of tentative Q550E steel plates by tailor welding, and the material of the main axle 205 and the shaft sleeve 207 is 40Cr.

The pressure sensor 3 is a spoke-type pressure sensor with a range of 20t, and the number of the pressure sensors 3 is four, and the total range is 60t. The top of the pressure sensor 3 is provided with a second mounting plate 301, the bottom is provided with a third mounting plate 302, and the four pressure sensors 3 are symmetrically distributed between the second mounting plate 301 and the third mounting plate 302, The base of the pressure sensor 3 is screwed to the third mounting plate 302 , and the force-bearing surface of the pressure sensor 3 is in contact with the second mounting plate 301 , and passes through the countersunk head screw holes of the second mounting plate 301 . The installed M30 countersunk head screw and the threaded hole in the middle of the pressure sensor 3 are matched for positioning and pressing; the second mounting plate 301 is detachably connected with the bottom of the load beam 4 through screws, and the third mounting plate 302 is detachably connected with the first mounting plate 201 by screws; the pressure sensor 3 is installed between the load beam 4 and the tire adapter 2. In order to avoid the influence of lateral force on the top and bottom tires, the second installation The plate 301 and the third mounting plate 302 are made of high-strength alloy steel. The thickness of the second mounting plate 301 is 40mm, and the thickness of the third mounting plate 302 is 35mm. Overturning ability.

The main body of the load beam 4 is composed of a box-shaped longitudinal beam 401 and an I-beam 402, and the upper surface of the load beam 4 is welded with 18 limit squares for limiting the first layer of the counterweight 7. Pipe 403, 12 tension lugs 404 are evenly arranged and welded around the load beam 4, which are used for tightening the wire rope after the counterweight 7 is placed, and a lifting connection lug 405 is installed at the front and rear of the load beam 4, The lifting connecting lugs 405 are used to connect the lifting hydraulic system 300;

The four corners of the load beam 4 are fixed with a guide sleeve mounting plate 406 , the guide sleeve 6 is fixed on the guide sleeve installation plate 406 , and the guide sleeve 6 includes a guide sleeve body 601 and a guide sleeve bracket 602 , the guide sleeve body 601 is connected to the guide sleeve bracket 602 through the flange end face at the top, and the guide sleeve bracket 602 and the guide sleeve mounting plate 406 are fixed with screws. The guide sleeve body 601 is a flange groove with an oil groove with a lubricating function, and the guide sleeve bracket 602 adopts Q345E. There are four threaded mounting holes in the middle of the bottom of the load beam 4, which are connected with the second mounting plate 301 on the top of the pressure sensor 3 by screws. There are also four threaded rods 407 with M30 in the middle of the bottom of the load beam 4. , the threaded rod 407 is connected with the frame system.

The frame plate 5 includes a rear plate 501, two side plates 502, a left front plate 503 and a right front plate 504. The frame plate 5 is made of steel plates and square tubes by tailor welding; the two side plates 502 are welded and fixed on the Both ends of the front side of the rear plate 501, the rear plate 501 and the two side plates 502 are welded and fixed to the upper surface of the load beam 4, and the left front plate 503 and the right front plate 504 are respectively their corresponding side plates. 502 is movably connected through hinges 505, and the left front panel 503 and the right front panel 504 are locked and fixed by a bolt lock 506, which can be locked when the whole vehicle is transported. The left front plate 503 and the right front plate 504 are arranged in the form of double doors, which is convenient for loading and unloading the counterweight 7. When the left front plate 503 and the right front plate 504 are opened, the counterweight 7 can be loaded and unloaded from the side using a forklift.

A counterweight 7 is loaded inside the load-carrying system 100 for the application of aircraft tire loads. The counterweight 7 is cast by molten steel, the shape is 1200 × 600 × 330mm, a single 1t, and two grooves are designed at the bottom to meet the lifting and lowering of the forklift. There are two convex grooves on the top, which are used to limit the position of the counterweights 7 when they are stacked and placed together with the grooves. There are hoisting interfaces on both sides of the counterweight block 7 to meet hoisting use. The simulated aircraft loading truck is suitable for single-wheel or multi-wheel operating conditions. The single-layer counterweight is 9 pieces, and after adding the weight of the load beam 4, it can meet the use requirements of a single main wheel bearing ≥16t. After three layers of counterweight, the total weight of the counterweight is 27t. After adding the load beam 4, the tire load is ≥30t, which can meet the maximum load requirements of the tire under the two-axle four-wheel working condition. After the counterweight 7 is loaded, the wire rope is installed using the tightening rope lugs on the load beam 4. One end of the wire rope is connected to the tightening lug 12 of the load beam 4, and the other end is tightened by the rope tightener and the opposite steel wire rope. . The weight block 7 is tightened and fixed as a whole to avoid shaking during transportation.

Further, the vehicle frame system 200 includes a vehicle body frame frame 8 , a guide column 9 , a traction steering front axle 500 and a traction rear axle 600 . A plurality of guide columns 9, the load system 100 and the frame system 200 are detachably connected through the guide sleeve 6 and the guide column 9; the bottom of the front end of the vehicle body frame frame 8 is provided with a traction steering front axle 500, a traction rear axle 600 is provided at the bottom of the rear end of the vehicle body frame frame 8.

Specifically, the vehicle body frame frame 8 includes two frame beams 801 and two frame longitudinal beams 802, which are mainly made of Q345E steel plates by tailor welding. The two frame beams 801 and the two frame longitudinal beams 802 enclose A hollow frame is formed. The bottoms of the two frame longitudinal beams 802 are welded and fixed with two reinforcing beams 803, which are used for no-load parking, transfer and safety protection to prevent accidental fall of the upper garment and cause accidental injury. The reinforcing beam 803 is parallel to the frame beam 801, and the reinforcing beam 803 is provided with a first fixing hole 805 for fixed installation with the load beam 4; The four threaded rods 407 at the bottom of the girder 4 pass through the corresponding first fixing holes 805 and then use M30 locking nuts for locking and fixing, so as to avoid the girder that is transported on the uneven road with no load from shock due to vibration.

Both ends of the two frame beams 801 are installed with guide columns 9 , and a large M120 nut is installed on the upper and lower frame beams 801 respectively. The guide columns 9 and the frame beams 801 are in clearance fit. For the installation part, structural reinforcement is carried out on the frame beam 801, and a reinforcing plate is installed in the longitudinal direction to ensure the local strength; the guide column 9 is made of 45 steel.

The middle parts of the two frame beams 801 are provided with oil cylinder mounts 804 , and each of the oil cylinder mounts 804 is mounted with a lifting hydraulic system 300 . Each of the lifting hydraulic systems 300 includes a hydraulic cylinder 36 mounted on the cylinder mounting base 804 , a support shaft 37 perpendicular to the extension rod of the hydraulic cylinder 36 is mounted, and the two ends of the support shaft 37 are symmetrically mounted There are two sprockets 38 , each of the sprockets 38 is mounted with a matching chain 39 , one end of the chain 39 is fixedly connected to the oil cylinder mounting seat 804 , and the other end of the chain 39 is connected to the other end of the chain 39 . The hoisting connecting lugs 405 are fixedly connected; the sprocket 38 cooperates with the chain 39 to drive the hoisting connecting lugs 405 on the load beam 4 to lift, so as to lift the load system 100 and facilitate the installation and disassembly of the aircraft main wheel 1 .

In order to prevent the chain 39 from loosening and falling off during transportation, the two sprockets 38 located on the top of the same hydraulic cylinder 36 are provided with a chain anti-dropping device 40 for preventing the chain from loosening and falling off. The support shaft 37 is fixedly connected by screws to prevent the chain 39 from falling out of the sprocket 38 during operation. It should be noted that when the hydraulic cylinder 36 is at the highest position, the load beam 4 needs to not exceed the top surface of the guide column 9; when the hydraulic cylinder 36 is at the shortest position, the load beam 4 needs to satisfy the lowest point above the reinforcement beam 803.

A hydraulic pump station 10 is installed on the traction steering front axle 500 , and the hydraulic pump station 10 provides power, control, assistance and working medium for the hydraulic cylinder 36 . The hydraulic pump station 10 is mainly composed of an oil tank assembly (the oil tank is provided with an oil suction filter, an oil return filter, an air filter, a liquid level liquid temperature gauge and an oil drain plug), a motor oil pump group, a hand pump, and a pressure gauge. , a manual reversing valve, a relief valve, a one-way throttle valve, a stop valve and a pipeline, etc. The hydraulic cylinder 36 is mainly composed of an oil cylinder and a hose assembly. The lift hydraulic system 300 is suitable for simulating parking loading of a loading vehicle, installation and unloading of the main wheel 1 of an aircraft. The lifting hydraulic system 300 has the functions of manual control operation, "holding" at any position within the cylinder stroke, and conforming to the requirements of various relevant specifications.

According to the schematic diagram of the hydraulic system in Fig. 35, during normal operation, only the manual reversing valve needs to be manually opened to perform the telescopic action of the lift cylinder, and the shut-off valve needs to be closed when the main wheel of the aircraft is installed. During no-load transfer, the shut-off valve is opened, and the two chambers of the lift cylinder release pressure for transportation. When the main wheel of the aircraft is installed, start the motor oil pump, the hydraulic source enters the constant flow low pressure standby condition; the manual reversing valve is switched to the left position, the hydraulic source enters the constant flow high pressure condition, the rodless cavity enters the oil, and the lift cylinder piston rod extends In place, close the two stop valves, the hydraulic source enters the constant flow low pressure standby condition, the manual reversing valve is switched to the neutral position, and the aircraft main wheel is installed; after the aircraft main wheel installation is completed, the stop valve is opened, and the manual reversing valve is switched to the right position , the hydraulic source enters the constant flow and low pressure condition, the rod cavity enters the oil, the piston rod of the lift cylinder accelerates and descends, and after the main wheel of the aircraft touches the ground, the manual reversing valve is switched to the neutral position, and the counterweight and subsequent full load tests are started.

Further, the traction steering front axle 500 includes a front traction tripod 11 , two front axles 12 are symmetrically arranged at the bottom of the rear end of the front traction tripod 11 ; the rear end of the front traction tripod 11 is provided with a support frame 18 , The middle of the support frame 18 is provided with a connecting ring 19 , and two connecting ears 20 are provided on both sides of the connecting ring 19 . The distance between the two connecting ears 20 is the same as the rear end of the front traction tripod 11 . The widths match, and the two connecting ears 20 are snapped into the two sides of the rear end portion corresponding to the front traction tripod 11, and are fixedly installed by the front traction frame pins 21, which penetrate through the front traction frame pins 21. Two of the connecting ears 20 and the front traction tripod 11, the bottom of each front axle 12 is mounted with a front traction tire 13; the first front axle reinforcement beam 14 and The second front axle reinforcement beam 15; the front traction tripod 11 adopts a double spring buffer mechanism, which can effectively reduce the impact on the trailer caused by the starting and braking of the vehicle, and protect the safety of the test.

The top of the rear end of the front traction tripod 11 is provided with a slewing bearing 16, and the top of the slewing bearing 16 is provided with an upper adapter plate 17, and the upper adapter plate 17 is welded and fixed to the frame beam 801 at the front end; The two connecting ears 20 are respectively fixed with two triangular front traction frame gussets 22, the upper front traction frame gusset 22 is used to fix the support frame 18 and the connecting ears 20, and the lower front traction frame The bracket angle plate 22 is used for fixing the connecting ear 20 and the corresponding front axle 12;

Front traction frame spring lugs 23 are provided on the support frame 18 corresponding to the two rear ends of the front traction tripod 11 , and front traction frames are correspondingly provided on the upper surfaces of the two rear ends of the front traction tripod 11 . Spring support lugs 23, a front draw frame spring 24 is connected between the two corresponding front draw frame spring support lugs 23; the slewing bearing 16 is located above the connecting ring 19, and the slewing bearing 16 and the The connecting ring 19 is provided with corresponding mounting holes 25, which are connected by bolts, and the slewing bearing 106 uses its own rotation function to ensure steering.

The upper adapter plate 17 includes an adapter plate frame 1701. The bottom of the adapter plate frame 1701 is provided with a ring frame 1702 and a mounting flange 1703; The first pump station mounting plate 1704, the second pump station mounting plate 1705 and the third pump station mounting plate 1706 of the hydraulic pump station 10, and the electrical mounting plate 1707 for mounting the electronic detection system 400, the adapter The disk frame 1701 is also provided with two inclined plates 1708 in parallel, and the inclined plates 1708 can play a strengthening role.

Further, the traction rear axle 600 includes a rear traction tripod 26, the front end of the rear traction tripod 26 is symmetrically provided with two rear axles 27, and each rear axle 27 is mounted with a rear traction tire 28; two A rear axle reinforcing beam 32 is also welded and fixed between the rear axles 27 ; the two front ends of the rear traction tripod 26 are respectively provided with rear traction frame hinge seats 29 , and the front side of the rear traction frame hinge seat 29 is A plurality of rear traction frame angle plates 30 are welded up and down in parallel, and the rear axle 27 and the rear traction frame hinge seat 29 are fixedly connected through the rear traction frame angle plate 30; the rear traction frame hinge seat 29 and its corresponding The front ends of the rear traction tripods 26 are fixedly connected through the rear traction frame pins 31;

Both the rear axles 27 and the two front ends of the rear traction tripod 26 are provided with rear traction frame spring lugs 33, and a rear traction frame spring 34 is connected between the two rear traction frame spring lugs 33 corresponding to each other. ; The inner sides of the two rear axles 27 are fixed with a rear draw frame inclined beam 35, and the top of the rear axle 27 and the rear draw frame inclined beam 35 are fixedly connected with the bottom of the frame 8.

The traction steering front axle 500 is used as the front axle of the simulated aircraft loading vehicle, which can rely on the slewing bearing 16 for steering under the action of the external tractor; the traction rear axle 600 is used as the rear axle of the simulated aircraft loading vehicle, with traction. function, no steering function.

Further, the electronic detection system 400 is installed on the electrical installation board 1707 , and the electronic detection system 400 includes a mobile power supply 41 , an intelligent recorder 42 , a weighing module 43 , a speed measurement module 44 and a temperature control device 45 . The mobile power supply 41 provides power for the smart recorder 42, and adopts dual power supply. The main backup battery is equipped with a 220V charger, and the output voltage is 220V, which supplies power for the smart instrument. When the main power supply battery fails or has no power, the dual power supply The power switch will automatically switch to the backup power supply; the button switch is controlled by the electronic detection system to start and stop; in addition, the main and backup batteries and chargers are detachable design. When the main battery is in use, the backup battery can be detached and charged for backup. Avoid the risk of insufficient power during prolonged use.

The weighing module 43 includes four spoke-type pressure sensors and four weighing transmitters. The weighing transmitter converts the weight signal of the car box detected by the feedback pressure sensor into an analog signal of 4-20mA for the smart meter to read. Take, and display the 4-way car box load value and 1-way summation value, the intelligent recorder 42 is also provided with a sound and light alarm device 46, when the weight exceeds the alarm upper limit, the intelligent recorder 42 relay action, the alarm sounds .

The speed measuring module 44 is composed of a Hall sensor and a code disc. The rotational speed sensor outputs a square wave signal by detecting the rotation of the code disc on the wheel hub, and the intelligent recorder 42 displays the vehicle speed value.

The temperature control device 45 includes a temperature sensor (PT100), a heating fan (100W) and a cooling fan (50W), which are used to adjust the working environment temperature of all electrical components. When the ambient temperature is lower than 0°C, the smart recorder 42 controls the heating fan to work, and when the ambient temperature is higher than 50°C, the smart recorder 42 controls the cooling fan to work;

The electronic detection system 400 is located in the electric control cabinet, and the electric control cabinet is installed on the electrical installation board 1707 to be connected to the mains before the vehicle leaves, and the temperature of the electric control cabinet can be adjusted to about 25°C.

The working principle flow of the simulated aircraft loading vehicle of the present invention is shown in accompanying drawing 38: when the simulated aircraft loading vehicle of the present invention is in the state of no-load parking (without the main wheel of the aircraft), it can carry out no-load transfer, and transfer it to the required After the test site, the lifting hydraulic system is lifted up, the main wheel of the aircraft is installed on the tire adapter, and then the lifting hydraulic system is lowered to make the main wheel of the aircraft land on the ground. Open the left front plate and right front plate of the frame plate, load an appropriate amount of counterweight, and install the wire rope using the tightening lug on the load beam. The steel wire rope is tightened, the counterweight is fixed, and the full-load test can be carried out after closing the left front plate and the right front plate of the frame plate.

In the present invention, the simulated aircraft loading vehicle relies on the integration of the loading system, the frame system, the lifting hydraulic system and the electronic detection system to complete the loading test task. The power relies on the external tractor for transition movement, and the overall load is supported by the load system and the frame system. The main function of the lift hydraulic system is to lift the load beam when loading aircraft tires, so as to facilitate the replacement of the aircraft main wheel. The electronic detection system can help the necessary parameters of the vehicle to be tested and electronically displayed in the transit state, and data can be stored in the test state to facilitate subsequent data processing.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A simulation aircraft loading car which characterized in that: the system comprises a load-carrying system (100), a frame system (200), a lifting hydraulic system (300) and an electronic detection system (400);

the load system (100) comprises an airplane main wheel (1), a tire adapter frame (2), a pressure sensor (3), a load girder (4), a frame plate (5), a guide sleeve (6) and a balancing weight (7); the pressure sensor (3) is arranged at the bottom of the load-carrying girder (4), the tire adapter rack (2) is arranged at the bottom of the pressure sensor (3), and the airplane main wheel (1) is arranged below the load-carrying girder (4) through the tire adapter rack (2); the top of the load-carrying crossbeam (4) is provided with frame plates (5) all around, a balancing weight (7) is arranged in a space enclosed by the frame plates (5), and the outer side wall of each frame plate (5) is fixedly provided with a plurality of guide sleeves (6);

the frame system (200) comprises a vehicle body girder frame (8), guide columns (9), a traction turning front shaft (500) and a traction rear shaft (600), a plurality of guide columns (9) matched with the guide sleeves (6) are mounted on the vehicle body girder frame (8), and the load-carrying system (100) is detachably connected with the frame system (200) through the guide sleeves (6) and the guide columns (9); a traction turning front shaft (500) is arranged at the bottom of the front end of the vehicle body girder framework (8), and a traction rear shaft (600) is arranged at the bottom of the rear end of the vehicle body girder framework (8);

a hydraulic pump station (10) and an electronic detection system (400) are installed on the traction turning front shaft (500), the lifting hydraulic system (300) is installed on the vehicle body girder framework (8), and the hydraulic pump station (10) provides power for the lifting hydraulic system (300).

2. A simulated aircraft loading cart according to claim 1 wherein: the tire adapter rack (2) comprises an adapter rack body and a main wheel shaft (205), the adapter rack body comprises a first mounting plate (201), an outer sealing plate (202), an inner sealing plate (203) and a side plate (204), the first mounting plate (201) is detachably connected with the bottom of the pressure sensor (3), the outer sealing plate (202) and the inner sealing plate (203) are fixedly arranged at the bottom of the first mounting plate (201) in parallel, the outer sealing plate (202) and the inner sealing plate (203) are both of a step-shaped structure, and the side plate (204) is filled between the outer sealing plate (202) and the inner sealing plate (203);

a main wheel shaft (205) is arranged at the position, close to the bottom, of the adapter frame body, the main wheel shaft (205) penetrates through the adapter frame body, a sleeve (206) and a shaft sleeve (207) are sleeved outside the main wheel shaft (205), the sleeve (206) is located in the adapter frame body, and the shaft sleeve (207) is detachably mounted on the inner side of the inner sealing plate (203);

the outer side of the outer sealing plate (202) is detachably provided with a limiting plate (208), the limiting plate (208) is located above the main wheel shaft (205), and the bottom of the limiting plate (208) is attached to the top of the main wheel shaft (205).

3. A simulated aircraft loading wagon as claimed in claim 2, wherein: the pressure sensors (3) are spoke type pressure sensors, the number of the pressure sensors (3) is four, a second mounting plate (301) is arranged at the top of each pressure sensor (3), a third mounting plate (302) is arranged at the bottom of each pressure sensor (3), the four pressure sensors (3) are symmetrically distributed between the second mounting plate (301) and the third mounting plate (302), and the stress surfaces of the pressure sensors (3) are in contact with the second mounting plate (301); the second mounting plate (301) is detachably connected with the bottom of the load girder (4), and the third mounting plate (302) is detachably connected with the first mounting plate (201).

4. A simulated aircraft loading cart according to claim 1 wherein: a plurality of limiting square tubes (403) used for limiting the balancing weight (7) are fixedly arranged on the upper surface of the load-carrying crossbeam (4), and a plurality of tensioning lugs (404) are uniformly and fixedly arranged on the periphery of the load-carrying crossbeam (4); a lifting connection lug (405) is respectively arranged at the front and the rear of the load girder (4), and the lifting connection lug (405) is used for connecting the lifting hydraulic system (300);

and four corners of the load-carrying crossbeam (4) are fixedly provided with a guide sleeve mounting plate (406), and the guide sleeve (6) is fixedly arranged on the guide sleeve mounting plate (406).

5. A simulated aircraft loading vehicle according to claim 4 wherein: the vehicle body girder framework (8) comprises two framework cross beams (801) and two framework longitudinal beams (802), the two framework cross beams (801) and the two framework longitudinal beams (802) enclose a hollow framework, a plurality of reinforcing cross beams (803) are fixedly arranged at the bottoms of the two framework longitudinal beams (802), the reinforcing cross beams (803) are parallel to the framework cross beams (801), and first fixing holes (805) for fixedly mounting with the load-carrying girders (4) are formed in the reinforcing cross beams (803);

guide posts (9) are installed at two ends of the two frame cross beams (801), and oil cylinder installation seats (804) are arranged in the middle of the two frame cross beams (801).

6. A simulated aircraft loading vehicle according to claim 5 wherein: the number of the lifting hydraulic systems (300) is two, and the two lifting hydraulic systems (300) are respectively arranged on oil cylinder mounting seats (804) on the two frame cross beams (801);

each lifting hydraulic system (300) comprises a hydraulic oil cylinder (36) arranged on an oil cylinder mounting seat (804), two chain wheels (38) are symmetrically arranged at the top of the hydraulic oil cylinder (36) through a support shaft (37), a chain (39) matched with each chain wheel (38) is arranged on each chain wheel (38), one end of each chain (39) is fixedly connected with the oil cylinder mounting seat (804), and the other end of each chain (39) is fixedly connected with the lifting connecting lug (405);

chain anti-dropping devices (40) for preventing chains from loosening and dropping are arranged on the two chain wheels (38) positioned at the top of the same hydraulic oil cylinder (36), and the chain anti-dropping devices (40) are fixedly connected with the supporting shaft (37);

the hydraulic pump station (10) provides power, control, auxiliary and working media for the hydraulic oil cylinder (36).

7. A simulated aircraft loading cart according to claim 1 wherein: the front traction rotation shaft (500) comprises a front traction tripod (11), two front shafts (12) are symmetrically arranged at the bottom of the rear end of the front traction tripod (11), and a front traction tire (13) is mounted at the bottom of each front shaft (12); a first front axle reinforcing beam (14) and a second front axle reinforcing beam (15) are fixedly arranged between the two front axles (12);

a slewing bearing (16) is arranged at the top of the rear end of the front traction tripod (11), an upper adapter plate (17) is arranged at the top of the slewing bearing (16), and the upper adapter plate (17) is fixedly connected with a frame cross beam (801) positioned at the front end; the hydraulic pump station (10) and the electronic detection system (400) are arranged on the upper transfer plate (17).

8. A simulated aircraft loading cart according to claim 7 wherein: a supporting frame (18) is arranged at the rear end of the front traction tripod (11), a connecting ring (19) is arranged in the middle of the supporting frame (18), two connecting lugs (20) are arranged on two sides of the connecting ring (19), the distance between the two connecting lugs (20) is matched with the width of the rear end of the front traction tripod (11), the two connecting lugs (20) are clamped into two sides of the corresponding rear end part of the front traction tripod (11), and the front traction tripod is fixedly installed through a front traction frame pin shaft (21);

two triangular front traction frame angle plates (22) are fixedly arranged at the two connecting lugs (20) positioned at the outer side respectively, the upper front traction frame angle plate (22) is used for fixing the support frame (18) and the connecting lugs (20), and the lower front traction frame angle plate (22) is used for fixing the connecting lugs (20) and the corresponding front shaft (12);

front traction frame spring support lugs (23) are respectively arranged at the positions, corresponding to the two rear ends of the front traction tripod (11), on the supporting frame (18), the upper surfaces of the two rear ends of the front traction tripod (11) are also correspondingly provided with the front traction frame spring support lugs (23), and a front traction frame spring (24) is connected between the two front traction frame spring support lugs (23) which correspond to each other;

the slewing bearing (16) is positioned above the connecting ring (19), and mounting hole positions (25) corresponding to each other are arranged on the slewing bearing (16) and the connecting ring (19).

9. A simulated aircraft loading cart according to claim 1 wherein: the traction rear shaft (600) comprises a rear traction tripod (26), two rear shafts (27) are symmetrically arranged at the front end of the rear traction tripod (26), and a rear traction tire (28) is mounted on each rear shaft (27); a rear axle reinforcing beam (32) is fixedly arranged between the two rear axles (27);

two front ends of the rear traction tripod (26) are respectively provided with a rear traction frame hinge seat (29), the front side surface of the rear traction frame hinge seat (29) is fixedly provided with a plurality of rear traction frame angle plates (30) in an up-down parallel manner, and the rear shaft (27) is fixedly connected with the rear traction frame hinge seat (29) through the rear traction frame angle plates (30);

the rear traction frame hinge seat (29) is fixedly connected with the front end part of the corresponding rear traction tripod (26) through a rear traction frame pin shaft (31);

rear traction frame spring support lugs (33) are arranged at the two front end parts of the two rear shafts (27) and the rear traction tripod (26), and a rear traction frame spring (34) is connected between the two rear traction frame spring support lugs (33) which correspond to each other;

rear traction frame oblique beams (35) are fixedly arranged on the inner sides of the two rear shafts (27), and the tops of the rear shafts (27) and the tops of the rear traction frame oblique beams (35) are fixedly connected with the bottom of the vehicle body girder framework (8).

10. A simulated aircraft loading cart according to claim 1 wherein: the electronic detection system (400) comprises a mobile power supply (41), an intelligent recorder (42), a weighing module (43), a speed measurement module (44) and a temperature control device (45), wherein the mobile power supply (41) provides electric energy for the intelligent recorder (42), the weighing module (43) converts a detected weight signal of the load-carrying system (100) into an analog signal for reading by the intelligent recorder (42), the speed measurement module (44) converts a detected rotation output square wave signal of the main wheel (1) of the airplane into an analog signal for reading by the intelligent recorder (42), an acousto-optic alarm device (46) is further arranged on the intelligent recorder (42), the acousto-optic alarm device (46) is used for alarming when the load-carrying system (100) is overweight, and the temperature control device (45) is used for adjusting the working environment temperature of all electrical elements.

Images