Airplane wheel driving and rotating device

Abstract

The invention discloses an airplane wheel driving and rotating device, particularly relates to the technical field of airplane maintenance equipment, and aims to solve the technical problem that an existing airplane wheel driving and rotating device firstly drives and rotates airplane wheels and then performs a brake test, which is different from a real landing condition, and a real landing environment cannot be simulated. The device comprises a rack, a contact roller is installed on the rack, the contact roller is driven by a driving module installed on the rack to rotate, and an asphalt concrete layer is arranged on the outer side of the contact roller and used for simulating the pavement of an airplane runway. The invention provides an airplane wheel rotation driving device which can simulate a real braking environment, so that working state test data of an airplane wheel braking system can be closer to a real value, and powerful data theory support is provided for research of the airplane wheel braking system.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft maintenance equipment, and in particular relates to a wheel belt rotating device. Background Art

[0002] When an aircraft is undergoing ground support maintenance, it is necessary to regularly test the working status of the aircraft wheel brake system. The prior art is to use a wheel rotation device to rotate the aircraft wheel so that the wheel rotation speed reaches a certain speed or above to simulate the operating status of the wheel at a certain ground speed of the aircraft, and then perform a brake test.

[0003] During the actual landing process, the aircraft is in contact with the ground and in relative motion, and the wheels do not rotate. When the aircraft lands, i.e., when the wheels are in contact with the ground, the ground drives the wheels to rotate through static friction, and at the same time, the wheels are braked through the wheel brake system.

[0004] However, the prior art has the following deficiencies:

[0005] The existing wheel-driven rotating device first drives the aircraft wheels to rotate to a certain speed and then performs a brake test, which is contrary to the actual landing situation (in the actual situation, the aircraft starts to use the wheel brake system as soon as it lands) and cannot simulate the above-mentioned actual landing environment, and has certain limitations. Summary of the invention

[0006] The present invention provides a wheel belt rotation device, which can simulate a real braking environment, so that the working state test data of the aircraft wheel brake system can be closer to the real value, and provide strong data theoretical support for the research of the aircraft wheel brake system.

[0007] The technical solution adopted by the present invention is as follows:

[0008] A wheel belt rotation device comprises a frame, on which a contact roller is installed. The contact roller is driven to rotate by a driving module installed on the frame. An asphalt concrete layer is arranged on the outer side of the contact roller, and the asphalt concrete layer is used to simulate an aircraft runway pavement.

[0009] According to the above technical scheme, the contact roller is first rotated by the driving module so that the contact roller reaches the corresponding preset speed (i.e., simulating the relative speed of the aircraft at the moment of landing and the runway under real conditions), and then the stationary wheel is gradually approached to the contact roller along a certain preset speed (aircraft descent speed), and finally contacts the contact roller, and then the staff starts the wheel brake system at the moment of contact until the wheel and the contact roller remain stationary, and records the relevant experimental data. When the present invention tests the wheel brake device, the wheel does not rotate at the beginning, but when it contacts the contact roller, the asphalt concrete layer on the surface of the contact roller drives the wheel to rotate through static friction, and brakes at the same time through the wheel brake system, and the process simulates the real braking environment, so that the working state test data of the aircraft wheel brake system can be closer to the real value compared with the existing wheel rotation device, providing strong data theoretical support for the research of aircraft wheel brake system.

[0010] Preferably, a shell is further provided on the frame, and a water spray pipe with a water outlet facing the outside of the contact roller is provided on one side of the shell, and the water spray pipe is connected to a water storage tank inside the shell.

[0011] According to the above technical solution, when it is necessary to test the wheel brake system under simulated rainy weather conditions, first open the water pump inside the shell in advance, and spray water on the asphalt concrete layer still on the surface of the contact roller, and at the same time start the drive module to drive the contact roller to rotate until the entire asphalt concrete layer reaches the corresponding preset humidity and temperature, and then perform the above process test. During the test, the water pipe continues to spray water to simulate the rainy conditions when the aircraft lands, so that the present invention can provide an aircraft runway pavement simulating rainy weather, thereby providing more and more realistic wheel brake system test data.

[0012] Preferably, a sliding plate is slidably connected to one side of the shell, a plurality of water spray pipe arrays are provided, and each of them is movably sleeved on the sliding plate, the water spray pipe is a hose, one end of the water spray pipe is fixedly connected to the water tank, and the other end passes through the outside of the sliding plate, and the sliding plate slides back and forth on one side of the shell through a reciprocating sliding mechanism.

[0013] According to the above technical solution, a plurality of the water spray pipes are provided to increase the coverage area of ​​the water spray, and the sliding plate is made to slide back and forth in the vertical direction on one side of the shell through a reciprocating sliding mechanism. Since the water spray pipe is a hose, the ends of all the water spray pipes are made to reciprocate in the vertical direction with the position where the water spray pipe extends from the surface of the sliding plate as a base point, so that the water outlet end of the water spray pipe swings back and forth in the vertical direction, thereby further increasing the coverage area of ​​the water spray, so that the asphalt concrete layer can be fully covered by the water spray, thereby improving the efficiency of wetting the asphalt concrete layer, and the water spray pipe swings along the corresponding motion trajectory, which can simulate the real situation of rain water swinging in the air with the airflow, thereby providing a more realistic simulation of rainy weather.

[0014] Preferably, the shell is further provided with a xenon lamp on the side where the water spray pipe is provided, and the emission end of the xenon lamp is aligned with the outer side of the contact roller.

[0015] According to the above technical solution, when it is necessary to test the wheel brake system under simulated sunny weather conditions, first turn on the xenon lamp in advance so that its light shines on the asphalt concrete layer on the surface of the contact roller, and at the same time start the drive module to drive the contact roller to rotate until the entire asphalt concrete layer reaches the corresponding preset dryness and temperature, and then perform the above process test. During the test, the xenon lamp is continuously exposed to the sun to simulate the sunny weather conditions when the aircraft lands, so that the present invention can provide an aircraft runway pavement simulating sunny weather, thereby providing more and more realistic wheel brake system test data.

[0016] Preferably, the contact roller includes an abutment wheel, and bevel wheels coaxially and symmetrically arranged on both sides of the abutment wheel, a threaded rod is coaxially sleeved through the interior of the abutment wheel, two ends of the threaded rod are respectively sleeved through the interior of the bevel wheels on both sides of the abutment wheel and are threadedly connected to the bevel wheels; a guide rod is also coaxially sleeved through the interior of the abutment wheel, two ends of the guide rod are respectively sleeved through the bevel wheels on both sides of the abutment wheel and are slidably connected to the bevel wheels; one end of the threaded rod passes through the outside of the bevel wheel and is driven to rotate by a first motor outside the bevel wheel.

[0017] According to the above technical solution, before testing, the staff moves the wheel to the contact roller to adjust the contact roller. First, the threaded rod is rotated by the first motor. Since the bevel wheel is threadedly connected to the bevel wheel, the two bevel wheels can approach or move away from the abutment wheel at the same speed, so that the contact roller can adjust itself to adapt according to the width of the tested wheel, that is, the abutment wheel matches the outer side of the wheel, and the slope of the bevel wheel abuts against the bend of the wheel. Therefore, it can adapt to and match more different types of wheels and is more practical.

[0018] Preferably, an end plate is provided at the outer end of the incline wheel, and a plurality of second infrared ranging sensors are evenly distributed on the inner side of the end plate along the circumference of the incline wheel, and the second infrared ranging sensor is electrically connected to a second alarm module arranged on the contact roller; a mounting seat is slidably connected to the frame, and the mounting seat slides along the width direction of the frame, and one end of the mounting seat is connected to a first telescopic cylinder, a telescopic column of the first telescopic cylinder is fixedly connected to the mounting seat, and a cylinder body of the first telescopic cylinder is fixedly connected to the frame.

[0019] According to the above technical solution, before the test, the staff moves the wheel to the contact roller to adjust the contact roller. After adjusting the contact roller to match the width of the wheel (that is, the abutment wheel matches the outer side of the wheel, and the slope of the slope wheel abuts against the bend of the wheel), the second infrared ranging sensor on the inner side of the end plate performs ranging. The distance measured at this time is the distance from the end plate to the side of the wheel. If the values ​​measured by the second infrared sensors on both sides are different, the second alarm module issues an alarm, which proves that the edge top of the wheel is not aligned with the center of the abutment wheel. If the test is carried out directly, it will have an adverse effect on the data. Therefore, when this happens, the staff starts the first telescopic cylinder after receiving the alarm reminder. The first telescopic rod is telescopic to drive the entire mounting seat and the contact roller to move along the width direction of the frame, thereby adjusting the edge top of the wheel to align with the center of the abutment wheel. When the adjustment is made to the second alarm module to stop, it indicates that the adjustment has been in place.

[0020] Preferably, connecting columns are slidably arranged between the abutment wheel and the adjacent incline wheel, and a plurality of first infrared ranging sensors are evenly arranged around the outer side of the connecting columns; the first infrared ranging sensor is electrically connected to a first alarm module arranged on the contact roller; a support plate is hingedly arranged at the bottom of one end of the frame close to the contact roller in the length direction, and a supporting telescopic cylinder is also arranged at the bottom of the frame, an articulated seat is connected between the top end of the supporting telescopic cylinder and the frame, one end of the articulated seat is slidably connected to the frame along the length direction of the frame, and the other end of the articulated seat is fixedly connected to the supporting telescopic cylinder, and a universal pulley is arranged at the bottom of the supporting telescopic cylinder.

[0021] According to the above technical solution, before the test, the staff moves the wheel to the contact roller to adjust the contact roller. After adjusting the top edge of the wheel to align with the center of the abutment wheel, different first infrared sensors located on both sides of the abutment wheel measure the distance. If the distances measured by the first infrared sensors on both sides are different, the first alarm module starts to alarm, indicating that the radial surface of the wheel is not parallel to the radial surface of the abutment wheel. If the test is carried out at this time, it will cause a large deviation in the test data and there will be major safety hazards during the test. Therefore, when the staff receives the alarm reminder, they start and continue to raise the The support telescopic cylinder allows the front end of the frame to rotate along the hinge point of the support plate, and the frame slides on the hinge seat, so that the rear end of the frame is lifted to a certain height. The staff holds the push rod at the tail of the frame, and the universal wheel at the bottom of the support telescopic cylinder contacts the ground. At this time, the staff operates the push rod to make the entire frame rotate in the horizontal direction, and the outer end of the telescopic rod of the support telescopic cylinder makes an arc motion on the ground with the contact point between the wheel and the contact roller as the center. Until the first alarm module stops alarming, it proves that it has been adjusted into place, that is, the radial surface of the wheel is parallel to the radial surface of the abutment wheel.

[0022] Preferably, the output end of the driving module is installed in a driving disk, the driving disk is rotatably connected to the frame, the driving disk is connected to a driven disk on the frame through a belt, and the driven disk is rotatably connected to the frame; the contact roller is installed on the mounting seat through mounting shafts on both sides of the bevel wheel, and the mounting shaft on one side of the contact roller passes through the outside of the mounting seat and is installed inside the driven disk.

[0023] According to the above technical solution, when driving the contact roller to rotate, the output end of the driving module drives the driving disk to rotate, and then drives the driven disk to rotate under the action of the belt, and the rotating disk drives the mounting shaft to rotate on the mounting seat, and then drives the contact roller to rotate on the mounting seat.

[0024] Preferably, the output end of the driving module is evenly provided with engaging teeth along its circumference, and is inserted into the interior of the driving disk from one side of the driving disk through the engaging tooth groove inside the driving disk for mating installation; a second telescopic cylinder is provided at one end of the driving module, the telescopic column of the second telescopic cylinder is fixedly connected to the driving module, and the cylinder body of the second telescopic cylinder is fixedly connected to the frame.

[0025] According to the above technical solution, when the driving module drives the contact roller to reach a corresponding preset speed, the second telescopic rod retracts to drive the entire driving module to move along the width direction on the frame, thereby driving the engaging teeth in the output end to slide in the engaging tooth groove until the engaging teeth are disengaged from the engaging tooth groove, and then the driving module is closed, thereby preventing the wheel in a stationary state from braking the contact wheel when it contacts the contact roller during the test, causing the rotation of the driving module to be blocked and causing damage to the driving module.

[0026] Preferably, the end of the mounting shaft is evenly provided with engaging teeth along its circumference, the engaging teeth engage with the engaging tooth grooves inside the driving disk, and enable the mounting shaft of the contact roller to slide inside the driven disk along the width direction of the frame.

[0027] According to the above technical solution, during the adjustment process of the contact roller to adapt to the width of the wheel, the mounting shaft of the contact roller slides inside the driven disk along the width direction of the frame. At this time, the engaging tooth slides in the engaging tooth groove but always maintains an engagement state with the engaging tooth groove and will not disengage therefrom, thereby allowing the mounting shaft to always maintain a transmission state with the drive module during the adjustment process without being affected by physical interference.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 1. When the present invention tests the wheel brake device, the wheel does not rotate at the beginning. Instead, when it contacts the contact roller, the asphalt concrete layer on the surface of the contact roller drives the wheel to rotate through static friction, and brakes through the wheel brake system at the same time. The process simulates the real braking environment, so that the working state test data of the aircraft wheel brake system can be closer to the real value compared with the existing wheel belt rotation device, providing strong data theoretical support for the research of aircraft wheel brake system.

[0030] Preferably, a shell is further provided on the frame, and a water spray pipe with a water outlet facing the outside of the contact roller is provided on one side of the shell, and the water spray pipe is connected to a water pump inside the shell.

[0031] 2. The present invention can provide an aircraft runway pavement simulating rainy weather, thereby providing more and more realistic wheel brake system test data.

[0032] 3. The water spray pipe in the present invention swings along the corresponding motion trajectory under the action of the reciprocating sliding mechanism, which can simulate the real situation of rain water swinging in the air with the air flow, thereby providing a more realistic simulation of rainy weather.

[0033] 4. During the test process, the present invention continuously exposes the xenon lamp to the sun to simulate the sunny weather conditions when the aircraft lands, so that the present invention can provide an aircraft runway pavement simulating sunny weather, thereby providing more and more realistic wheel brake system test data.

[0034] 5. The present invention can give an alarm for abnormal wheel conditions before testing, and make adjustments according to corresponding mechanisms to achieve a better testing state.

[0035] 6. When the present invention is being tested, the drive module can be separated from the transmission assembly to prevent the brake effect on the contact wheel when the stationary wheel contacts the contact roller, thereby preventing the drive module from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0037] Figure 1 It is a three-dimensional diagram of a wheel belt rotating device in the present invention;

[0038] Figure 2 It is a front view of a wheel belt rotating device in the present invention;

[0039] Figure 3 A top view of a wheel belt rotating device in the present invention;

[0040] Figure 4 is a schematic diagram of the internal structure of the housing described in the present invention;

[0041] Figure 5 is a three-dimensional diagram of the contact roller in the present invention;

[0042] Figure 6 It is a side view of a wheel belt rotating device in the present invention;

[0043] Figure 7 A side view of a wheel belt rotating device of the present invention when the frame angle is adjusted;

[0044] Figure 8 It is a structural installation diagram of the supporting telescopic cylinder in the present invention;

[0045] Fig. 9 It is a schematic diagram of the connection structure between the output end and the driving disk in the present invention;

[0046] Fig.10 for Fig. 9 Structural cutaway view of the middle cross section;

[0047] Fig.11 It is a schematic diagram of the connection structure between the mounting shaft and the driven disc in the present invention;

[0048] Fig.12 for Fig.11 Structural cutaway view of the middle cross section.

[0049] Among them: 1-frame, 2-asphalt concrete layer, 3-drive module, 4-shell, 5-spray pipe, 6-sliding plate, 7-xenon lamp, 8-abutment wheel, 9-inclined wheel, 10-threaded rod, 11-guide rod, 12-first motor, 13-connecting column, 14-first infrared ranging sensor, 15-support plate, 16-support telescopic cylinder, 17-hinged seat, 18-end plate, 19-second infrared ranging sensor, 20-mounting seat, 21-first telescopic cylinder, 22-output end, 2 3-driving disc, 24-belt, 25-driven disc, 26-installing shaft, 27-engaging teeth, 28-engaging tooth grooves, 29-second telescopic cylinder, 30-engaging teeth, 31-engaging tooth grooves, 32-fixing plate, 33-cam, 34-second motor, 35-placing chamber, 36-push rod, 37-first spring, 38-bottom plate, 39-pressing column, 40-water tank, 41-check valve, 42-auxiliary support plate, 43-second spring, 44-elastic water bag, 45-universal pulley. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiment is only a piece of embodiment of the present application, rather than a full piece of embodiment. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0051] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0052] Combine the following Figures 1 to 12 The present invention is described in detail.

[0053] Example 1

[0054] A wheel belt rotating device, in this embodiment, as Figure 1 to Figure 3 As shown, it comprises a frame 1, on which a contact roller is mounted, and the contact roller is driven to rotate by a driving module 3 mounted on the frame 1, and an asphalt concrete layer 2 is arranged on the outer side of the contact roller, and the asphalt concrete layer 2 is used to simulate the runway pavement of an aircraft;

[0055] When used specifically, the contact roller is first rotated by the driving module 3 so that the contact roller reaches the corresponding preset speed (i.e., simulating the relative speed of the aircraft at the moment of landing and the runway under real conditions), and then the stationary wheel is gradually approached to the contact roller along a certain preset speed (aircraft descent speed), and finally contacts the contact roller. Then the staff starts the wheel brake system at the moment of contact until the wheel and the contact roller remain stationary, and records the relevant experimental data. When the present invention tests the wheel brake device, the wheel does not rotate at the beginning, but when it contacts the contact roller, the asphalt concrete layer 2 on the surface of the contact roller drives the wheel to rotate through static friction, and brakes at the same time through the wheel brake system. The process simulates the real braking environment, so that the working state test data of the aircraft wheel brake system can be closer to the real value compared with the existing wheel rotation device, providing strong data theoretical support for the research of aircraft wheel brake system.

[0056] In this embodiment, if Figure 1 to Figure 3 As shown, a shell 4 is further provided on the frame 1 , and a water spray pipe 5 with a water outlet facing the outside of the contact roller is provided on one side of the shell 4 , and the water spray pipe 5 is connected to a water storage tank 40 inside the shell 4 .

[0057] During specific use, when it is necessary to test the wheel brake system under simulated rainy weather conditions, water is first sprayed on the asphalt concrete layer 2 still on the surface of the contact roller, and at the same time, the drive module 3 is started to drive the contact roller to rotate until the entire asphalt concrete layer 2 reaches the corresponding preset humidity and temperature, and then the above process is tested. During the test, the water pipe 5 continues to spray water to simulate the rainy conditions when the aircraft lands, so that the present invention can provide an aircraft runway pavement simulating rainy weather, thereby providing more and more realistic wheel brake system test data.

[0058] In this embodiment, if Figure 1 to Figure 3 As shown, a sliding plate 6 is slidably connected to one side of the housing 4, a plurality of water spray pipes 5 are arranged in an array, and each of them is respectively penetrated and movably sleeved on the sliding plate 6, the water spray pipe 5 is a hose, and one end of the water spray pipe 5 is connected to the water storage tank 40; Figure 4As shown, the reciprocating sliding mechanism includes a bottom plate 38 fixedly arranged on the top of the sliding plate 6, a fixed plate 32 is provided on the top of the shell 4, and the fixed plate 32 is rotatably connected to a cam 33 on the side close to the sliding plate 6. The cam 33 is driven to rotate by a second motor 34 on the fixed plate 32. A plurality of rotating rollers are arranged and rotatably arranged at the bottom of the bottom plate 38, and the rotating rollers are in contact with the cam 33. A first spring 37 is provided between the bottom plate 38 and the top of the shell 4.

[0059] During specific use, a plurality of the water spray pipes 5 are provided to increase the coverage area of ​​the water spray. In addition, the sliding plate 6 is made to slide back and forth in the vertical direction on one side of the shell 4 through a reciprocating sliding mechanism. Since the water spray pipe 5 is a hose, the ends of all the water spray pipes 5 are made to reciprocate in the vertical direction with the position where the water spray pipe 5 extends from the surface of the sliding plate 6 as the base point, so that the water outlet end of the water spray pipe 5 swings back and forth in the vertical direction, thereby further increasing the coverage area of ​​the water spray, so that the asphalt concrete layer 2 can be fully covered by the water spray, thereby improving the efficiency of wetting the asphalt concrete layer 2, and the water spray pipe 5 swings along the corresponding motion trajectory, which can simulate the real situation of rain water swinging in the air with the airflow, thereby providing a more realistic simulation of rainy weather.

[0060] In this embodiment, if Figure 1 to Figure 3 As shown, the shell 4 is further provided with a placement cavity 35 on the side where the water spray pipe 5 is provided. The placement cavity 35 is provided above the water spray pipe 5. A xenon lamp 7 is provided in the placement cavity 35. The emitting end of the xenon lamp 7 is tilted downward to align with the outer side of the contact roller.

[0061] During specific use, when it is necessary to test the wheel brake system under simulated sunny weather conditions, first turn on the xenon lamp 7 in advance so that its light shines on the asphalt concrete layer 2 on the surface of the contact roller, and at the same time start the drive module 3 to drive the contact roller to rotate until the entire asphalt concrete layer 2 reaches the corresponding preset dryness and temperature, and then perform the above process test. During the test, the xenon lamp 7 is continuously exposed to the sun to simulate the sunny weather conditions when the aircraft lands, so that the present invention can provide an aircraft runway pavement simulating sunny weather, thereby providing more and more realistic wheel brake system test data.

[0062] In this embodiment, if Figure 1 to Figure 5As shown, the contact roller includes an abutment wheel 8, and bevel wheels 9 coaxially and symmetrically arranged on both sides of the abutment wheel 8, a threaded rod 10 is coaxially penetrated inside the abutment wheel 8, and two ends of the threaded rod 10 are respectively sleeved inside the bevel wheels 9 on both sides of the abutment wheel 8 and threadedly connected to the bevel wheels 9; a guide rod 11 is also coaxially penetrated inside the abutment wheel 8, and two ends of the guide rod 11 are respectively sleeved inside the bevel wheels 9 on both sides of the abutment wheel 8 and slidably connected to the bevel wheels 9; one end of the threaded rod 10 passes through the outside of the bevel wheel 9 and is driven to rotate by a first motor 12 outside the bevel wheel 9.

[0063] During specific use, before testing, the staff moves the wheel to the contact roller to adjust the contact roller. First, the threaded rod 10 is rotated by the first motor 12. Since the bevel wheel 9 is threadedly connected to the bevel wheel 9, the two bevel wheels 9 can approach or move away from the abutment wheel 8 at the same speed, so that the contact roller can adjust itself to adapt according to the width of the tested wheel, that is, the abutment wheel 8 matches the outer side of the wheel, and the slope of the bevel wheel 9 abuts against the bend of the wheel. Therefore, it can adapt to and adapt to more different types of wheels, and is more practical.

[0064] In this embodiment, if Figure 1 to Figure 5 As shown, an end plate 18 is provided at the outer end of the incline wheel 9, and a plurality of second infrared ranging sensors 19 are evenly distributed on the inner side of the end plate 18 along the circumference of the incline wheel 9, and the second infrared ranging sensor 19 is electrically connected to the second alarm module arranged on the contact roller; a mounting seat 20 is slidably connected to the frame 1, and the mounting seat 20 slides along the width direction of the frame 1, and one end of the mounting seat 20 is connected to a first telescopic cylinder 21, and the telescopic column of the first telescopic cylinder 21 is fixedly connected to the mounting seat 20, and the cylinder body of the first telescopic cylinder 21 is fixedly connected to the frame 1.

[0065] During specific use, before testing, the staff moves the wheel to the contact roller to adjust the contact roller. After adjusting the contact roller to match the wheel width (that is, the abutment wheel 8 matches the outer side of the wheel, and the slope of the slope wheel 9 abuts against the bend of the wheel), at this time, the second infrared ranging sensor 19 on the inner side of the end plate 18 performs ranging. The distance measured at this time is the distance from the end plate 18 to the side of the wheel. If the values ​​measured by the second infrared sensors on both sides are different, the second alarm module issues an alarm, which proves that the edge top of the wheel is not aligned with the center of the abutment wheel 8. If the test is carried out directly, it will have an adverse effect on the data. Therefore, when this happens, the staff starts the first telescopic cylinder 21 after receiving the alarm reminder. The first telescopic rod is telescopic to drive the entire mounting seat 20 and the contact roller to move along the width direction of the frame 1, thereby adjusting the edge top of the wheel to align with the center of the abutment wheel 8. When the adjustment is made to the second alarm module to stop, it indicates that the adjustment has been in place.

[0066] In this embodiment, if Figure 1 to Figure 5 As shown, a connecting column 13 is slidably arranged between the abutting wheel 8 and the adjacent inclination wheel 9, and a plurality of first infrared ranging sensors 14 are evenly arranged around the outer side of the connecting column 13; the first infrared ranging sensor 14 is electrically connected to the first alarm module arranged on the contact roller; a support plate 15 is hingedly connected to the bottom of one end of the frame 1 close to the contact roller in the length direction, as shown in FIG. Figure 8 As shown, a supporting telescopic cylinder 16 is also provided at the bottom of the frame 1, and an articulated seat 17 is connected between the top of the supporting telescopic cylinder 16 and the frame 1, one end of the articulated seat 17 is rotatably connected to the frame 1, and the other end of the articulated seat 17 is fixedly connected to the supporting telescopic cylinder 16.

[0067] During specific use, before testing, the staff moves the wheel to the contact roller to adjust the contact roller. After adjusting the top edge of the wheel to align with the center of the abutment wheel 8, different first infrared sensors located on both sides of the abutment wheel 8 measure the distance. If the distances measured by the first infrared sensors on both sides are different, the first alarm module starts to alarm, indicating that the radial surface of the wheel is not parallel to the radial surface of the abutment wheel 8. If the test is carried out at this time, it will cause a large deviation in the test data, and there will also be major safety hazards during the test. Therefore, when the staff receives the alarm reminder, they start and continue to raise the support telescopic cylinder 16, so that The front end of the frame 1 rotates along the hinge point of the support plate 15, and the frame 1 slides on the hinge seat 17, so that the rear end of the frame 1 is lifted to a certain height. The staff holds the push rod 36 at the tail of the frame 1, and the universal wheel at the bottom of the supporting telescopic cylinder 16 contacts the ground. At this time, the staff operates the push rod 36 to rotate the entire frame 1 in the horizontal direction, and the outer end of the telescopic rod of the supporting telescopic cylinder 16 moves in an arc on the ground with the contact point between the wheel and the contact roller as the center. Until the first alarm module stops alarming, it proves that it has been adjusted into place, that is, the radial surface of the wheel is parallel to the radial surface of the abutting wheel 8.

[0068] It is worth mentioning that when testing the wheel brake system, the height of the support telescopic cylinder 16 can be adjusted, the bottom of the support telescopic rod remains stationary (the universal pulley is locked), and the frame 1 slides on the top of the articulated seat 17, thereby adjusting the angle between the frame 1 and the ground, and making the angle within a range of greater than or equal to 2 degrees to less than or equal to 3 degrees. At this time, the wheel abuts against the contact roller in a horizontal movement, thereby simulating the scenario in which the aircraft lands at an angle of greater than or equal to 2 degrees to less than or equal to 3 degrees, which conforms to the actual landing situation and further improves the data reliability of the present invention.

[0069] In this embodiment, if Figure 1 to Figure 3 As shown, the output end 22 of the driving module 3 is installed in the driving disk 23, the driving disk 23 is rotatably connected to the frame 1, the driving disk 23 is connected to the driven disk 25 on the frame 1 through a belt 24, and the driven disk 25 is rotatably connected to the frame 1; the contact roller is installed on the mounting seat 20 through the mounting shafts 26 on both sides of the bevel wheel 9, and the mounting shaft 26 on one side of the contact roller passes through the outside of the mounting seat 20 and is installed inside the driven disk 25.

[0070] During specific use, when driving the contact roller to rotate, the output end 22 of the driving module 3 drives the driving disk 23 to rotate, and then drives the driven disk 25 to rotate under the action of the belt 24, and the rotating disk drives the mounting shaft 26 to rotate on the mounting seat 20, thereby driving the contact roller to rotate on the mounting seat 20.

[0071] In this embodiment, if Figure 9-10 As shown, the output end 22 of the driving module 3 is evenly provided with engaging teeth 27 along its circumference, and is inserted into the driving disk 23 from one side of the driving disk 23 through the engaging tooth groove 28 inside the driving disk 23 for matching installation; one end of the driving module 3 is provided with a second telescopic cylinder 29, the telescopic column of the second telescopic cylinder 29 is fixedly connected to the driving module 3, and the cylinder body of the second telescopic cylinder 29 is fixedly connected to the frame 1, and the ends of the engaging teeth 27 and the engaging tooth groove 28 are both set to arc shapes for easy insertion.

[0072] During specific use, when the driving module 3 drives the contact roller to reach the corresponding preset speed, the second telescopic rod retracts to drive the entire driving module 3 to move along the width direction of the frame 1, thereby driving the engaging tooth 27 in the output end 22 to slide in the engaging tooth groove 28 until the engaging tooth 27 is disengaged from the engaging tooth groove 28, and then the driving module 3 is closed, thereby preventing the machine wheel in a stationary state from braking the contact wheel when it contacts the contact roller during testing, causing the rotation of the driving module 3 to be blocked and causing damage to the driving module 3.

[0073] In this embodiment, if Figure 11-12 As shown, the end of the mounting shaft 26 is evenly provided with engaging teeth 30 along its circumference, and the engaging teeth 30 engage with the engaging tooth grooves 31 inside the driving disk 23, so that the mounting shaft 26 of the contact roller slides inside the driven disk 25 along the width direction of the frame 1.

[0074] During specific use, during the adjustment process of the contact roller to match the width of the wheel, the mounting shaft 26 of the contact roller slides inside the driven disk 25 along the width direction of the frame 1. At this time, the engaging tooth 30 slides in the engaging tooth groove 31 but always maintains an engagement state with the engaging tooth groove 31 and will not disengage therefrom, thereby allowing the mounting shaft 26 to always maintain a transmission state with the drive module 3 during the adjustment process without being affected by physical interference.

[0075] Example 2

[0076] In this embodiment, different from the above embodiment, Figure 4As shown, a pressing column 39 slidably connected to the shell 4 is provided below the cam 33, and an interval water spraying mechanism is connected between each of the water spraying pipes 5 and the water storage tank 40, and the interval water spraying mechanism includes an elastic water bag 44 arranged below the pressing column, and a one-way valve 41 is connected between the elastic water bag 44 and the water spraying pipe 5 and between the elastic water bag 44 and the water storage tank 40, and the water outlet direction of the one-way valve 41 is toward the direction of the water spraying pipe 5; all the elastic water bags 44 are overlapped and arranged below the pressing column 39, and an auxiliary support plate 42 is provided between the elastic water bag 44 located at the bottom and the box body, and a second compression spring is provided between the auxiliary support plate 42 and the box body.

[0077] When in use, the raised end of the cam 33 pushes up the bottom plate 38 so that the sliding plate 6 slides upward, thereby causing the water spray pipe 5 to rotate downward. When the raised end of the cam 33 abuts downward against the pressing column 39, the sliding plate 6 slides downward under the action of the first spring 37, causing the water spray pipe 5 to rotate upward, thereby completing the reciprocating swing of the water spray pipe 5. At the same time, when the raised end of the cam 33 abuts downward against the pressing column 39, the pressing column 39 slides downward to squeeze all the overlapping elastic water bags 44, each of which is in a The auxiliary support plate 42 and the pressing column 39 are squeezed, so that the internal water is pressed into the water spray pipe 5 through the one-way valve 41 and sprayed out. When the raised end of the cam 33 pushes the bottom plate 38 upward, the elastic water bag 44 restores its deformation, so that the liquid in the water tank 40 is pressed into the elastic water bag 44 for standby use under the action of negative pressure, thereby realizing intermittent water spraying of the water spray pipe 5, so that the asphalt concrete layer 2 will not be continuously excessively sprayed with water, and while saving water for spraying, the preset wetness of the asphalt concrete layer 2 can be maintained and at the same time.

[0078] Example 3

[0079] Different from the above embodiment, a first roller is provided at the bottom of the frame 1, the bottom of the first roller is tangent to the bottom end of the support plate 15, and a second roller is provided at the tail end, the rotation axis of the second roller is higher than the rotation axis of the first roller. When the staff needs to move the present invention, they press the push rod 36 downward, at which time the first roller rotates as a fulcrum, and the second roller contacts the ground, which makes it convenient for the staff to move the device.

[0080] Example 4

[0081] Different from the above embodiment, it also includes a detection method of the wheel brake system:

[0082] First, determine the weather environment to be simulated, and then treat the asphalt concrete layer 2 on the surface of the contact roller through the corresponding water spray pipe 5 or xenon lamp 7. Before the test, the staff moves the wheel to the contact roller to adjust the contact roller. The contact roller is adjusted so that the contact roller can adjust itself to fit according to the width of the tested wheel, align the edge top of the wheel with the center of the abutment wheel 8, and the radial surface of the wheel is parallel to the radial surface of the abutment wheel 8. Then, the drive module 3 is started to drive the contact roller to rotate, so that the contact roller reaches the corresponding preset speed (i.e., simulating the relative speed of the aircraft with the runway at the moment of landing in real conditions). At this time, the drive module 3 is controlled to move to disengage from the transmission structure, and then the lifting angle of the frame 1 is adjusted to allow the stationary wheel to gradually approach the contact roller horizontally at a certain preset speed (aircraft descent speed), and finally contact the contact roller. Then the staff starts the wheel brake system at the moment of contact until the wheel and the contact roller remain stationary, and records the relevant experimental data.

[0083] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A wheel belt rotating device, characterized in that: The invention comprises a frame (1), on which a contact roller is mounted, the contact roller is driven to rotate by a driving module (3) mounted on the frame (1), an asphalt concrete layer (2) is arranged on the outer side of the contact roller, and the asphalt concrete layer (2) is used to simulate an airplane runway pavement.

2. The wheel belt rotation device according to claim 1, characterized in that: The frame (1) is also provided with a shell (4), one side of the shell (4) is provided with a water spray pipe (5) with a water outlet facing the outside of the contact roller, and the water spray pipe (5) is connected to a water storage tank (40) inside the shell (4).

3. The wheel belt rotation device according to claim 2, characterized in that: A sliding plate (6) is slidably connected to one side of the shell (4); a plurality of water spray pipes (5) are arranged in an array and are respectively inserted through and movably sleeved on the sliding plate (6); the water spray pipe (5) is a hose; one end of the water spray pipe (5) is fixedly connected to the water storage tank (40), and the other end passes through the outside of the sliding plate (6); the sliding plate (6) reciprocates on one side of the shell (4) through a reciprocating sliding mechanism.

4. The wheel belt rotation device according to claim 2, characterized in that: The housing (4) is also provided with a xenon lamp (7) on the side where the water spray pipe (5) is provided, and the emission end of the xenon lamp (7) is aimed at the outside of the contact roller.

5. The wheel belt rotation device according to claim 1, characterized in that: The contact roller comprises an abutment wheel (8), and a bevel wheel (9) coaxially and symmetrically arranged on both sides of the abutment wheel (8); a threaded rod (10) is coaxially penetrated and sleeved inside the abutment wheel (8); two ends of the threaded rod (10) are respectively sleeved inside the bevel wheels (9) on both sides of the abutment wheel (8) and are threadedly connected to the bevel wheels (9); a guide rod (11) is also coaxially penetrated and sleeved inside the abutment wheel (8); two ends of the guide rod (11) are respectively sleeved inside the bevel wheels (9) on both sides of the abutment wheel (8) and are slidably connected to the bevel wheels (9); one end of the threaded rod (10) passes through the outside of the bevel wheel (9) and is driven to rotate by a first motor (12) outside the bevel wheel (9).

6. The wheel belt rotation device according to claim 5, characterized in that: An end plate (18) is arranged at the outer end of the incline wheel (9), and a plurality of second infrared distance measuring sensors (19) are evenly arranged on the inner side of the end plate (18) along the circumference of the incline wheel (9), and the second infrared distance measuring sensors (19) are electrically connected to a second alarm module arranged on the contact roller; a mounting seat (20) is slidably connected to the frame (1), and the mounting seat (20) slides along the width direction of the frame (1); one end of the mounting seat (20) is connected to a first telescopic cylinder (21), a telescopic column of the first telescopic cylinder (21) is fixedly connected to the mounting seat (20), and a cylinder body of the first telescopic cylinder (21) is fixedly connected to the frame (1).

7. The wheel belt rotation device according to claim 5, characterized in that: A connecting column (13) is slidably arranged between the abutting wheel (8) and the adjacent inclined wheel (9), and a plurality of first infrared distance measuring sensors (14) are evenly arranged around the outer side of the connecting column (13); the first infrared distance measuring sensor (14) is electrically connected to a first alarm module arranged on the contact roller; a support plate (15) is hingedly connected to the bottom of one end of the frame (1) close to the contact roller in the length direction; a supporting telescopic cylinder (16) is also arranged at the bottom of the frame (1); an articulated seat (17) is connected between the top end of the supporting telescopic cylinder (16) and the frame (1); one end of the articulated seat (17) is slidably connected to the frame (1) along the length direction of the frame (1), and the other end of the articulated seat (17) is fixedly connected to the supporting telescopic cylinder (16); and a universal pulley is arranged at the bottom of the supporting telescopic cylinder (16).

8. The wheel belt rotation device according to claim 6, characterized in that: The output end (22) of the driving module (3) is mounted in a driving disk (23), the driving disk (23) is rotatably connected to the frame (1), the driving disk (23) is connected to a driven disk (25) on the frame (1) via a belt (24), and the driven disk (25) is rotatably connected to the frame (1); the contact roller is mounted on the mounting seat (20) via mounting shafts (26) on both sides of the bevel wheel (9), and the mounting shaft (26) on one side of the contact roller passes through the outside of the mounting seat (20) and is mounted inside the driven disk (25).

9. The wheel belt rotation device according to claim 8, characterized in that: The output end (22) of the driving module (3) is evenly provided with engaging teeth (27) along its circumference, and is inserted into the driving disk (23) from one side through the engaging tooth groove (28) inside the driving disk (23) for mating installation; a second telescopic cylinder (29) is provided at one end of the driving module (3), the telescopic column of the second telescopic cylinder (29) is fixedly connected to the driving module (3), and the cylinder body of the second telescopic cylinder (29) is fixedly connected to the frame (1).

10. The wheel belt rotation device according to claim 9, characterized in that: The end of the mounting shaft (26) is evenly provided with engaging teeth (30) along its circumference, and the engaging teeth (30) engage with engaging tooth grooves (31) inside the driving disk (23), so that the mounting shaft (26) of the contact roller slides inside the driven disk (25) along the width direction of the frame (1).

Images