Landing lamp simulation dynamic wind load test platform
By designing a landing light simulation dynamic wind load test platform containing a magnetic powder loader and a dynamic twist speed sensor, the problem of inaccurate load data in the prior art is solved, and a more accurate and efficient test process is achieved.
Patent Information
- Application Number
- CN202421625085.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In the prior art, the weight load is a fixed load, and accurate load data cannot be provided. It is impossible to determine whether the landing light can work normally under the resistance of specific load values, or delay work, and the delay time cannot be digitized.
A landing lamp simulated dynamic wind load test platform is designed, and the load is digitally adjustable with magnetic powder loader. It combines a dynamic twist speed sensor and a crankshaft lamp head pressure plate to ensure that the load on the lamp surface, that is, the windward surface, is always at a fixed value and the error is minimal.
It realizes more accurate test data, provides consistency and digital recording of test data, improves testing efficiency, and ensures convenience and accuracy of digital load delivery.
Smart Images
Figure CN222748252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of landing light testing equipment, in particular to a landing light simulation dynamic wind load testing platform. Background Art
[0002] Aircraft landing lights are tools provided to illuminate and guide the aircraft to land normally when it "lands". They are usually stored inside the fuselage. The landing lights will be released during the landing process. Since the aircraft lands at a very high speed and encounters great wind resistance, this test is to test whether the landing lights can be released normally under the external load, namely wind resistance.
[0003] The existing technology is to fix the landing light on a gantry-type work frame, use a flat plate mechanism to press on the surface of the lamp head, hang a fixed weight on the head of the pressure plate, and then start the landing light to turn on. The lamp head can push the weight, which means that the lamp can work normally under the load provided by the fixed weight. The problems of the existing technology are:
[0004] 1. The weight is the gravity load in the vertical direction. When the landing light is released, the gravity load received by the light surface, i.e. the windward side, will change due to the change in angle.
[0005] 2. The weight load is a fixed load and cannot provide accurate load data. It is impossible to determine whether the landing light cannot work normally under a specific load value, or whether it will work with a delay. The delay time cannot be digitally counted. Utility Model Content
[0006] In order to solve the above problems, the utility model provides a landing light simulated dynamic wind load test platform with simple structure, accurate measurement and small error.
[0007] The utility model discloses a landing light simulation dynamic wind load test platform, comprising a working platform and a dynamic distortion speed sensor, wherein a magnetic powder loader is fixedly arranged on the working platform, and a transmission shaft is arranged on the magnetic powder loader;
[0008] The dynamic torsion speed sensor is provided with a rotating shaft, one end of the transmission shaft away from the magnetic powder loader is connected to one end of the rotating shaft through a rigid coupling, the other end of the rotating shaft is connected to a landing light test device, and the dynamic torsion speed sensor is fixedly arranged on the working platform;
[0009] The landing light test device comprises a landing light fixing device and a lamp holder pressing plate covering the landing light fixing device, connecting shafts are correspondingly arranged on both sides of the lamp holder pressing plate, one of the connecting shafts is connected to the rotating shaft through a rigid coupling, and the other connecting shaft is rotatably arranged in a bearing seat through a bearing, and the bearing seat is fixedly arranged on the working platform;
[0010] The central axes of the transmission shaft, the rotating shaft and the connecting shaft are all located on the same straight line.
[0011] Preferably, the lamp holder pressing plate is a crankshaft type lamp holder pressing plate, which comprises a pressing plate body, a balancing weight is fixedly arranged on one end of the pressing plate body, and an annular pressing plate for pressing on the landing light is arranged on the other end of the pressing plate body;
[0012] Connecting ears are correspondingly arranged on both sides of the pressing plate body, and the connecting shafts are respectively arranged on the connecting ears.
[0013] Preferably, the landing light fixing device is a sunken landing light fixing device, which includes a fixing seat, on which a receiving groove is provided, and a plurality of fixing threaded holes are provided on a vertically upward surface of the fixing seat, and the fixing threaded holes are evenly distributed along the circumference of the receiving groove.
[0014] The utility model changes the existing complicated and inaccurate testing status quo and realizes digitally adjustable load by using a magnetic powder loader.
[0015] The utility model can more conveniently load and unload the tested lamps, thereby improving the test efficiency, and the landing lamp fixing device is convenient for batch testing.
[0016] The utility model provides more accurate test data consistency and digital record and information accuracy, and digital load transfer is more convenient and accurate than manually adding weights.
[0017] The crankshaft lamp holder pressure plate of the utility model can keep the lamp holder pressure plate and the surface of the lamp under test in a parallel and pressed state at all times, and connecting ears are correspondingly arranged on both sides of the pressure plate body, and the connecting shafts are respectively arranged on the connecting ears, so that the connecting shaft is aligned with the rotation center of the lamp, thereby ensuring that the load on the lamp surface, i.e., the windward surface, is always a constant value with a minimum error.
[0018] The utility model uses a highly efficient and accurate magnetic powder brake with a dynamic adjustment range of 0-100 N*M and a precise torque sensor, so that the simulated wind load resistance value of the lamp surface, i.e. the windward surface, can be detected. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the utility model.
[0020] Figure 2 It is a top view of the utility model.
[0021] Figure 3 This is a schematic diagram of the lamp holder pressure plate.
[0022] Figure 4 for Figure 3 Top view of the .
[0023] Figure 5 for Figure 3 Left view of .
[0024] Figure 6 This is a schematic diagram of the landing light fixture.
[0025] Figure numerals: 1-working platform, 2-magnetic powder loader, 3-rigid coupling, 4-dynamic torsion speed sensor, 5-lamp holder pressure plate, 6-bearing seat, 7-landing light fixing device, 8-connecting shaft, 9-connecting ear, 10-fixing threaded hole. DETAILED DESCRIPTION Example
[0026] The following is combined with Figure 1 and attached Figure 2 The utility model is described as follows. The utility model is a landing light simulation dynamic wind load test platform, comprising a working platform 1 and a dynamic twisting speed sensor 4. A magnetic powder loader 2 is fixedly arranged on the working platform 1, and a transmission shaft is arranged on the magnetic powder loader 2;
[0027] The dynamic torsion speed sensor 4 is provided with a rotating shaft, one end of the transmission shaft away from the magnetic powder loader 2 is connected to one end of the rotating shaft through a rigid coupling 3, and the other end of the rotating shaft is connected to a landing light test device, and the dynamic torsion speed sensor 4 is fixedly arranged on the working platform 1;
[0028] The landing light test device comprises a landing light fixture 7 and a lamp holder pressing plate 5 covering the landing light fixture 7, and connecting shafts 8 are correspondingly arranged on both sides of the lamp holder pressing plate 5, one of the connecting shafts 8 is connected to the rotating shaft through a rigid coupling 3, and the other connecting shaft 8 is rotatably arranged in a bearing seat 6 through a bearing, and the bearing seat 6 is fixedly arranged on the working platform 1;
[0029] The central axes of the transmission shaft, the rotating shaft and the connecting shaft 8 are all located on the same straight line.
[0030] The lamp holder pressing plate 5 is a crankshaft type lamp holder pressing plate 5, and the crankshaft type lamp holder pressing plate 5 comprises a pressing plate body, a balancing weight is fixedly arranged on one end of the pressing plate body, and an annular pressing plate for pressing on the landing light is arranged on the other end of the pressing plate body;
[0031] Connecting ears 9 are correspondingly arranged on both sides of the pressing plate body, and the connecting shafts 8 are respectively arranged on the connecting ears 9 .
[0032] The landing light is controlled by an electric motor and a reducer mechanism to lower and retract the lamp head. There is a certain height difference between the plane of the lamp head and the plane of the reducer drive shaft. In order to use a pressure plate to accurately add simulated wind load to the lamp head surface, the pressure plate plane and the drive shaft must rotate concentrically. The connecting shaft 8 is respectively arranged on the connecting ear 9 so that the rotation center of the lamp head pressure plate 5 and the landing lamp head coincide, thereby ensuring that the pressure plate mechanism can perform synchronous action with the retraction and extension of the lamp head, thereby adding an accurate adjustable load, i.e., simulated wind load, to the lamp head.
[0033] The landing light fixing device 7 is a sunken landing light fixing device 7, which includes a fixing seat, on which a receiving groove is arranged, and a plurality of fixing threaded holes 10 are arranged on a vertically upward side of the fixing seat, and the fixing threaded holes 10 are evenly distributed along the circumference of the receiving groove.
[0034] When in use, the landing light is fixed in the accommodating groove on the sunken landing light fixing device 7, and the landing light is fixed by connecting the screws with the fixing threaded holes 10. After fixing, under the action of the motor connected to the landing light, only the lamp head can move, the lamp head pressure plate 5 is placed flat on the lamp head surface, and the annular pressure plate is pressed on the lamp head ring surface. After the landing light is powered on, it performs a retracting and extending action. Since the lamp head pressure plate 5 is pressed on the lamp head surface of the landing light, the lamp head pressure plate 5 moves with the lamp head, thereby driving the crankshaft lamp head pressure plate 5 to rotate. The magnetic powder loader 2 dynamically adds a certain torque load to the crankshaft lamp head pressure plate 5, and the dynamic torsion speed sensor 4 records and displays the current torque load and speed of the crankshaft lamp head pressure plate 5, and converts it into the time required for a complete action; when the landing light lamp head stops rotating, the lamp head pressure plate 5 also stops rotating, which is the maximum resistance torque thrust of the lamp body.
Claims
1. A landing light simulation dynamic wind load test platform, comprising a working platform and a dynamic twisting speed sensor, characterized in that: A magnetic powder loader is fixedly arranged on the working platform, and a transmission shaft is arranged on the magnetic powder loader; The dynamic torsion speed sensor is provided with a rotating shaft, one end of the transmission shaft away from the magnetic powder loader is connected to one end of the rotating shaft through a rigid coupling, the other end of the rotating shaft is connected to a landing light test device, and the dynamic torsion speed sensor is fixedly arranged on the working platform; The landing light test device comprises a landing light fixing device and a lamp holder pressing plate covering the landing light fixing device, connecting shafts are correspondingly arranged on both sides of the lamp holder pressing plate, one of the connecting shafts is connected to the rotating shaft through a rigid coupling, and the other connecting shaft is rotatably arranged in a bearing seat through a bearing, and the bearing seat is fixedly arranged on the working platform; The central axes of the transmission shaft, the rotating shaft and the connecting shaft are all located on the same straight line.
2. A landing light simulation dynamic wind load test platform as claimed in claim 1, characterized in that: The lamp holder pressing plate is a crankshaft type lamp holder pressing plate, and the crankshaft type lamp holder pressing plate comprises a pressing plate body, a balancing weight is fixedly arranged on one end of the pressing plate body, and an annular pressing plate for pressing on the landing light is arranged on the other end of the pressing plate body; Connecting ears are correspondingly arranged on both sides of the pressing plate body, and the connecting shafts are respectively arranged on the connecting ears.
3. A landing light simulation dynamic wind load test platform as claimed in claim 2, characterized in that: The landing light fixing device is a sunken landing light fixing device, and the sunken landing light fixing device includes a fixing seat, and the fixing seat is provided with a receiving groove. A plurality of fixing threaded holes are provided on a vertically upward surface of the fixing seat, and the fixing threaded holes are evenly distributed along the circumference of the receiving groove.