Aircraft tractor parameter test system

Abstract

The utility model discloses an aircraft tractor parameter test system, relates to the technical field of airport ground special equipment, and is used for providing a scientific and accurate parameter test environment for an aircraft tractor. The testing system comprises a bottom plate, a frictional resistance adjusting device, a torque measuring device and a lifting pressure adjusting device, and an aircraft wheel simulator is arranged on the lifting pressure adjusting device and used for simulating the situation that aircraft wheels apply pressure to a tractor; the frictional resistance adjusting device is partially exposed out of the bottom plate to simulate frictional resistance under different grounds; the torque measuring device is installed on one side and measures rotation data of the driving wheel. The test device can be separated from a real airplane, accurately simulate actual working conditions, comprehensively and truly reflect the stress condition of the tractor, and provide powerful support for performance evaluation and optimization.

Description

TECHNICAL FIELD

[0001] The utility model relates to airport ground special equipment technical field, especially a kind of airplane tractor parameter test system. BACKGROUND

[0002] In the field of aviation, airplane tractor is important equipment for dragging airplane to move on airport ground. In order to ensure the performance stability and safety and reliability of airplane tractor under various working conditions, it is particularly important to accurately test its related parameters.

[0003] Traditional airplane tractor test method often relies on experience accumulation in actual use process. Although this method can reflect the performance of airplane tractor to some extent, it has many limitations. Specifically, the traditional method is difficult to scientifically and systematically test the influence of key factors such as ground friction resistance and airplane wheel pressure on airplane tractor performance. Therefore, the traditional method is difficult to comprehensively evaluate and optimize the performance of airplane tractor. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides an airplane tractor parameter test system, which can provide a scientific and accurate parameter test environment for airplane tractor by setting bottom plate, friction resistance adjusting device, torque measuring device and lifting pressure adjusting device arranged on the bottom plate.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An airplane tractor parameter test system, comprising a bottom plate, a friction resistance adjusting device, a torque measuring device, and a lifting pressure adjusting device arranged on the bottom plate, wherein the lifting pressure adjusting device is provided with an airplane wheel simulator, the airplane wheel simulator is used to simulate the pressure applied by the airplane wheel to the tractor after the lifting pressure adjusting device is connected to the tractor, and the friction resistance adjusting device is partially exposed from the bottom plate to simulate the friction resistance of the tractor drive wheel on different ground, and the torque measuring device is installed on one side of the friction resistance adjusting device to measure the data generated when the tractor drive wheel rotates.

[0007] In some embodiments, the lifting pressure adjusting device comprises a platform, the bottom surface of the platform is provided with an airplane wheel simulator, and the bottom surface of the platform is hinged to one end of a damping adjuster at four corners;

[0008] The other end of the damping adjuster is hinged to one end of a pressure adjusting hydraulic cylinder;

[0009] The other end of the pressure adjusting hydraulic cylinder is hinged to the bottom plate, and the damping adjuster and the pressure adjusting hydraulic cylinder form a support and adjustment structure together;

[0010] A hydraulic system controls a pressure regulating hydraulic cylinder to provide pressure to the aircraft wheel simulator on the platform bottom surface, so that the aircraft wheel simulator can simulate the pressure exerted by the aircraft wheels on the tractor.

[0011] In some embodiments, the friction resistance adjusting device comprises a roller and a resistance torque adjusting power motor connected to the roller, the roller is exposed to the bottom plate, and when the driving wheel of the tractor is in contact with the roller, the rotation speed of the resistance torque adjusting power motor can be adjusted to simulate the friction resistance of the driving wheel of the tractor on different ground surfaces.

[0012] In some embodiments, the torque measuring device comprises a measuring roller and a torque measuring sensor connected to the measuring roller, the torque measuring sensor can measure the data generated by the driving wheel of the tractor when the driving wheel drives the measuring roller to rotate.

[0013] In some embodiments, a mounting bracket is further provided on the platform bottom surface, and the aircraft wheel simulator is mounted on the mounting bracket.

[0014] The beneficial effects of the present application are as follows: by setting the lifting pressure adjusting device, adjustable pressure can be provided for the aircraft wheel simulator to accurately simulate the actual pressure exerted by the aircraft wheels on the tractor; at the same time, the friction resistance adjusting device can simulate the friction resistance of the driving wheel of the tractor on different ground conditions, thereby enhancing the universality and authenticity of the test; and the setting of the torque measuring device can accurately measure various parameters when the driving wheel of the tractor rotates, thereby providing strong support for performance evaluation and optimization of the tractor. The present application can simulate the actual working condition accurately and comprehensively and truly reflect the stress condition of the tractor, thereby providing strong support for performance evaluation and optimization. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic view of the aircraft tractor parameter test system of the present application;

[0016] Figure 2 It is a left view schematic view of the aircraft tractor parameter test system of the present application;

[0017] Figure 3 It is a front view schematic view of the aircraft tractor parameter test system of the present application;

[0018] Figure 4 It is Figure 1 A local enlarged view of position A;

[0019] Figure 5 It is a case schematic view of the aircraft tractor parameter test system of the present application testing an electric type rodless aircraft tractor;

[0020] Figure 6It is a structural schematic diagram of the friction resistance adjusting device;

[0021] Figure 7 It is a structural schematic diagram of the torque measuring device.

[0022] Wherein, 1, bottom plate; 11, bottom foot; 2, friction resistance adjusting device; 21, roller; 22, resistance torque adjusting power motor; 3, torque measuring device; 31, measuring roller; 32, torque measuring sensor; 41, platform; 42, aircraft wheel simulator; 43, damping adjuster; 44, pressure adjusting hydraulic cylinder; 45, hydraulic system; 5, cushion block; 6, mounting bracket. DETAILED DESCRIPTION

[0023] The technical scheme provided by the utility model will be described in more detail below. Figures 1-7 The technical scheme provided by the utility model will be described in more detail below.

[0024] Referring to Figures 1 to 5 The utility model embodiment provides a kind of aircraft tractor parameter test system, including bottom plate 1, friction resistance adjusting device 2, torque measuring device 3 and setting on the bottom plate 1 lifting pressure adjusting device, aircraft wheel simulator 42 is equipped on the lifting pressure adjusting device, aircraft wheel simulator 42 is the high-strength simulation wheel same with aircraft wheel size, and can be replaced according to the different aircraft wheel size of aircraft tractor adaptation.The aircraft wheel simulator 42 is used to simulate aircraft wheel to exert the pressure provided by lifting pressure adjusting device to tractor after the lifting pressure adjusting device and tractor are connected;Part of the friction resistance adjusting device exposes bottom plate;The friction resistance adjusting device is used to simulate the friction resistance of tractor drive wheel under different ground;The torque measuring device is installed on one side of friction resistance adjusting device, for measuring the data generated when tractor drive wheel rotates.

[0025] It should be noted that the configuration of lifting pressure adjusting device is not unique, and the purpose of lifting pressure adjusting device is to construct a platform with lifting function, which is provided with aircraft wheel simulator 42 below. Therefore, as long as the lifting function of the platform can be realized, and the aircraft wheel simulator 42 can be stably supported, so that it can simulate the pressure exerted by aircraft wheel to tractor, such configuration can be used as the design scheme of lifting pressure adjusting device.

[0026] For example, in some embodiments, the lifting pressure adjusting device includes platform 41, damping adjuster 43, pressure adjusting hydraulic cylinder 44 and hydraulic system 45;The platform 41 bottom surface is provided with aircraft wheel simulator 42 through mounting bracket 6 or connecting rod, and the platform 41 bottom surface is hinged to one end of damping adjuster 43 at four corners.

[0027] The other end of the damping adjuster 43 is hinged to one end of the pressure adjusting hydraulic cylinder 44.

[0028] The other end of the pressure adjusting hydraulic cylinder 44 is hinged to the base plate 1, and cooperates with the damping adjuster 43 to form a structure for supporting and adjusting the platform 41.

[0029] The hydraulic system 45 provides pressure to the aircraft wheel simulator 42 on the bottom surface of the platform 41 by controlling the pressure adjusting hydraulic cylinder 44, so that the aircraft wheel simulator 42 can simulate the pressure exerted by the aircraft wheels on the tractor. The hydraulic system 45 can be arranged on the cushion block 5 on the base plate 1, or directly mounted on the base plate 1.

[0030] Referring to Figure 3 , Figure 4 , the other end of the pressure adjusting hydraulic cylinder 44 can be hinged to the base plate 1 in various ways. For example, a hinge hole is arranged on the base plate 1, and the other end of the pressure adjusting hydraulic cylinder 44 is hinged to the hinge hole. Alternatively, a first hinge member 12 is arranged on the base plate 1, and the other end of the pressure adjusting hydraulic cylinder 44 is hinged to the first hinge member 12 through a pin shaft.

[0031] Continuing to refer to Figure 3 , Figure 4 , the four corners of the bottom surface of the platform 41 can be hinged to one end of the damping adjuster 43 in various ways. For example, hinge holes are arranged at the four corners of the bottom surface of the platform 41, and one end of the damping adjuster 43 is hinged to the hinge holes. Alternatively, second hinge members 13 are arranged at the four corners of the bottom surface of the platform 41, and one end of the damping adjuster 43 is hinged to the second hinge members 13 through pin shafts.

[0032] Referring to Figure 5 , Figure 6 In some embodiments, the friction resistance adjusting device 2 comprises a roller 21 and a resistance torque adjusting power motor 22, and the output end of the resistance torque adjusting power motor 22 is connected to the roller 21. When the driving wheel of the tractor is in contact with the roller 21 and rotates in the same direction, the roller 21 can be driven to rotate in the same direction at a speed different from the relative speed of the driving wheel by adjusting the rotating speed of the resistance torque adjusting power motor 22. Due to the speed difference between the driving wheel and the roller 21, the driving wheel will be subjected to the friction force generated by the roller 21. By adjusting the rotating speed of the resistance torque adjusting power motor 22, the size of the friction force can be changed, thereby simulating the friction resistance of the driving wheel of the tractor under different ground conditions.

[0033] Referring to Figure 5 , Figure 7 In some embodiments, the torque measuring device 3 comprises a measuring roller 31 and a torque measuring sensor 32 connected thereto, and the torque measuring sensor 32 can measure the data generated by the driving wheel of the tractor when the driving wheel drives the measuring roller 31 to rotate. The data includes the peak torque, starting acceleration, braking acceleration, and stable speed of the aircraft tractor under the working condition.

[0034] The working principle of the utility model is: the airplane tractor parameter test system is in the standby state, the drive wheel of the tractor is moved to the contact state of the friction resistance adjusting device 2 and the torque measuring device 3, and the wheel holding device of the tractor is connected with the airplane wheel simulator 42 of the lifting pressure adjusting platform. Figure 5 The tractor can be the electric type rodless airplane tractor in the electric type rodless airplane tractor can be moved to the platform 1.

[0035] The airplane wheel simulator 42 provides the equal proportion machine wheel pressure to the drive wheel of the tractor by the hydraulic system 45 controlling the pressure adjusting hydraulic cylinder 44 to shrink according to the stroke, the resistance torque adjusting power motor 22 of the friction resistance adjusting device 2 is started, the parameter is adjusted to the horizontal cement pavement friction coefficient, the parameter can be the preset rotating speed. The resistance torque adjusting power motor 22 can have multiple preset rotating speeds, and each preset rotating speed corresponds to different friction coefficients. The torque measuring sensor 32 of the torque measuring device 3 is started, and the airplane tractor is operated to make its drive wheel go through the starting state, the lowest stable speed to the highest stable speed, and the peak torque, the starting acceleration, the braking acceleration, the stable speed and other parameters of the airplane tractor under the working condition are measured by the torque measuring device.

[0036] Finally, it should be noted that: the above examples are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing examples, or make equivalent replacement to part of the technical features, but these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of each embodiment of the utility model.

Claims

1. An aircraft tug parameter testing system, characterized by: The device comprises a base plate (1), a friction resistance adjusting device (2), a torque measuring device (3), and a lifting pressure adjusting device provided on the base plate (1), wherein the lifting pressure adjusting device is provided with an aircraft wheel simulator (42) for simulating the pressure applied by the aircraft wheels to the tractor after the lifting pressure adjusting device is connected to the tractor; a part of the friction resistance adjusting device (2) is exposed to the base plate (1) for simulating the friction resistance of the tractor drive wheels on different ground; and the torque measuring device (3) is installed on one side of the friction resistance adjusting device (2) for measuring the data generated when the tractor drive wheels rotate.

2. The aircraft tug parameter testing system of claim 1, wherein, The lifting pressure adjusting device comprises: a platform (41) provided with the aircraft wheel simulator (42) on the bottom surface, and the platform (41) is hingedly connected to one end of a damping adjuster (43) at the four corners of the bottom surface; the damping adjuster (43) is hingedly connected to the other end of a pressure adjusting hydraulic cylinder (44); the pressure adjusting hydraulic cylinder (44) is hingedly connected to the base plate (1) and forms a support and adjustment structure together with the damping adjuster (43); a hydraulic system (45) controls the pressure adjusting hydraulic cylinder (44) to provide pressure to the aircraft wheel simulator (42) on the bottom surface of the platform (41), so that the aircraft wheel simulator (42) can simulate the pressure applied by the aircraft wheels to the tractor.

3. The aircraft tug parameter testing system of claim 1, wherein, The friction resistance adjusting device (2) comprises a roller (21) and a resistance torque adjusting power motor (22) connected to the roller, wherein the roller (21) is exposed to the base plate (1), and when the drive wheels of the tractor contact the roller (21), the rotational speed of the resistance torque adjusting power motor (22) can be adjusted to simulate the friction resistance of the drive wheels of the tractor on different ground.

4. The aircraft tug parameter testing system of claim 1, wherein, The torque measuring device (3) comprises a measuring roller (31) and a torque measuring sensor (32) connected to the measuring roller, wherein the torque measuring sensor (32) can measure the data generated by the drive wheels of the tractor when the drive wheels drive the measuring roller (31) to rotate.

5. The aircraft tug parameter testing system of claim 2, wherein, The device further comprises a mounting bracket (6) provided on the bottom surface of the platform (41), and the aircraft wheel simulator (42) is mounted on the mounting bracket (6). The device comprises a base plate (1), a friction resistance adjusting device (2), a torque measuring device (3), and a lifting pressure adjusting device provided on the base plate (1), wherein the lifting pressure adjusting device is provided with an aircraft wheel simulator (42) for simulating the pressure applied by the aircraft wheels to the tractor after the lifting pressure adjusting device is connected to the tractor; a part of the friction resistance adjusting device (2) is exposed to the base plate (1) for simulating the friction resistance of the tractor drive wheels on different ground; and the torque measuring device (3) is installed on one side of the friction resistance adjusting device (2) for measuring the data generated when the tractor drive wheels rotate. The lifting pressure adjusting device comprises: a platform (41) provided with the aircraft wheel simulator (42) on the bottom surface, and the platform (41) is hingedly connected to one end of a damping adjuster (43) at the four corners of the bottom surface; the damping adjuster (43) is hingedly connected to the other end of a pressure adjusting hydraulic cylinder (44); the pressure adjusting hydraulic cylinder (44) is hingedly connected to the base plate (1) and forms a support and adjustment structure together with the damping adjuster (43); a hydraulic system (45) controls the pressure adjusting hydraulic cylinder (44) to provide pressure to the aircraft wheel simulator (42) on the bottom surface of the platform (41), so that the aircraft wheel simulator (42) can simulate the pressure applied by the aircraft wheels to the tractor. The friction resistance adjusting device (2) comprises a roller (21) and a resistance torque adjusting power motor (22) connected to the roller, wherein the roller (21) is exposed to the base plate (1), and when the drive wheels of the tractor contact the roller (21), the rotational speed of the resistance torque adjusting power motor (22) can be adjusted to simulate the friction resistance of the drive wheels of the tractor on different ground. The torque measuring device (3) comprises a measuring roller (31) and a torque measuring sensor (32) connected to the measuring roller, wherein the torque measuring sensor (32) can measure the data generated by the drive wheels of the tractor when the drive wheels drive the measuring roller (31) to rotate. The device further comprises a mounting bracket (6) provided on the bottom surface of the platform (41), and the aircraft wheel simulator (42) is mounted on the mounting bracket (6).

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