A ducted motor test bench

Abstract

The utility model discloses a ducted motor test bench, which relates to the technical field of ducted motor wind force testing, including a workbench and a ducted motor body, wherein a linkage table is arranged on the workbench, and a guide assembly for guiding the linkage table and a detection assembly for detecting the moving thrust of the linkage table are arranged below the ducted motor body, and two L-shaped connecting frames are installed on the linkage table, and rubber pads are arranged on the two L-shaped connecting frames. The utility model has a reasonable design structure, wherein the ducted motor body is installed on the L-shaped connecting frame through a support ear, and the support ear is elastically supported by the rubber pad, so that the vibration generated when the ducted motor body is working can be buffered, so that the vibration will not be transmitted to the detection assembly, thereby ensuring the accuracy of the detection result of the detection assembly, and the guide assembly and the detection assembly are arranged below the ducted motor body to avoid obstruction to the air duct when the ducted motor body is working, so as to obtain a more accurate detection result.

Description

Technical Field

[0001] The utility model relates to the technical field of ducted motor wind force testing, in particular to a ducted motor testing bench. Background Art

[0002] A ducted motor, also known as a ducted fan, is a propulsion device with a duct set outside the free propeller. This design can improve propulsion efficiency to a certain extent because it can reduce induced drag and blade tip vortex. However, the efficiency of a ducted motor is not always higher than that of an open propeller motor.

[0003] A Chinese patent with the patent number CN206504852U discloses a thrust test device, which includes a force measuring device fixedly mounted on a test platform and a guide structure. The ducted fan is connected to the force measuring device through a connector and is movably mounted on the guide structure. When the ducted fan is working, the blades rotate to generate wind in a predetermined direction. Under the action of the reaction force, the ducted fan will move in a direction opposite to the predetermined direction. When the ducted fan no longer moves in that direction, the force measured by the force measuring device is the wind force generated by the ducted fan. The above structure can effectively measure the thrust of the ducted fan, solving the problem in the prior art that the thrust of the ducted fan cannot be effectively measured, facilitating the control of the ducted fan, and improving the performance of the aircraft.

[0004] However, the duct of the ducted fan in the device is blocked, which has a great impact on the actual value of the thrust. In addition, when the ducted fan is working, the wind will produce certain vibrations on the outer shell of the ducted fan. These vibrations will directly act on the wind detector, thereby affecting the test results and causing deviations in the test results. To this end, we provide a ducted motor test bench to solve the above problems. Utility Model Content

[0005] 1) Technical issues solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a ducted motor test bench.

[0007] 2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ducted motor test bench, comprising a workbench and a ducted motor body, wherein a linkage table is arranged on the workbench, and a guide assembly for guiding the linkage table and a detection assembly for detecting the moving thrust of the linkage table are arranged below the ducted motor body, two L-shaped connecting frames are installed on the linkage table, and rubber pads are arranged on the two L-shaped connecting frames, and two supporting ears are fixedly connected to the ducted motor body, and the supporting ears can be detachably installed on the L-shaped connecting frames.

[0009] Furthermore, a first mounting hole is formed on the support ear, a second mounting hole is formed on the L-shaped connecting frame, a bolt is provided in the second mounting hole, and one end of the bolt is threadedly connected to the first mounting hole.

[0010] Furthermore, the guide assembly includes two guide rails fixedly connected to the workbench, and sliders are slidably connected to the two guide rails, and the sliders are fixedly connected to the linkage table.

[0011] Furthermore, the detection component includes a fixed plate installed on the workbench, a thrust detector is installed on the fixed plate, and a detection end of the thrust detector is installed on the linkage table.

[0012] Furthermore, a base is provided below the workbench, four corners of the base are fixedly connected with vertical poles, and the top ends of the vertical poles are fixedly connected to the workbench.

[0013] 3) Beneficial effects:

[0014] Compared with the existing technology, the ducted motor test bench has the following beneficial effects:

[0015] The utility model installs the ducted motor body on the L-shaped connecting frame through the supporting ears, the linkage platform, the L-shaped connecting frame and the rubber pad through the matching arrangement, and elastically supports the supporting ears through the rubber pad, which can buffer the vibration generated by the ducted motor body when it is working, so that the vibration will not be transmitted to the detection component, thereby ensuring the accuracy of the detection result of the detection component, and arranging the guide component and the detection component below the ducted motor body to avoid obstruction of the air duct when the ducted motor body is working, thereby obtaining more accurate detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional Figure 1 ;

[0017] Figure 2 The three-dimensional Figure 2 ;

[0018] Figure 3 It is the front view of the utility model.

[0019] In the figure: 1. workbench; 2. ducted motor body; 3. linkage table; 4. support ear; 5. first mounting hole; 6. L-shaped connecting frame; 7. second mounting hole; 8. rubber pad; 9. fixing plate; 10. thrust detector; 11. guide rail; 12. slider; 13. base; 14. vertical pole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-3 As shown, the utility model provides a technical solution: a ducted motor test bench, comprising a workbench 1 and a ducted motor body 2, a base 13 is arranged under the workbench 1, four corners of the base 13 are fixedly connected with vertical poles 14, and the top of the vertical pole 14 is fixedly connected to the workbench 1.

[0022] The base 13 and the uprights 14 can be used to support the workbench 1 , so that there is a certain height difference between the workbench 1 and the placement surface of the base 13 , thereby reducing the wind resistance of the ducted motor body 2 caused by objects on the placement surface.

[0023] A linkage platform 3 is arranged on the workbench 1 , and a guide component for guiding the linkage platform 3 and a detection component for detecting the moving thrust of the linkage platform 3 are arranged below the ducted motor body 2 .

[0024] The guide assembly includes two guide rails 11 fixedly connected to the workbench 1, and sliders 12 are slidably connected to the two guide rails 11, and the sliders 12 are fixedly connected to the linkage platform 3. The sliders 12 are in a sliding state on the guide rails 11, and the friction force is small, so that the sliders 12 can be driven to move on the guide rails 11 when the linkage platform 3 moves, thereby reducing the impact of friction on the test results of the ducted motor body 2.

[0025] The detection component includes a fixed plate 9 installed on the workbench 1, on which a thrust detector 10 is installed. The detection end of the thrust detector 10 is installed on the linkage platform 3. When the linkage platform 3 moves, the moving force of the linkage platform 3 can be detected by the thrust detector 10.

[0026] Two L-shaped connecting frames 6 are installed on the linkage platform 3, and rubber pads 8 are provided on the two L-shaped connecting frames 6. Two supporting ears 4 are fixedly connected to the ducted motor body 2, and the supporting ears 4 can be detachably installed on the L-shaped connecting frames 6. The rubber pads 8 are L-shaped in design, which can elastically support the sides and bottom of the supporting ears 4, thereby buffering the vibration generated by the operation of the ducted motor body 2.

[0027] A first mounting hole 5 is provided on the support ear 4, and a second mounting hole 7 is provided on the L-shaped connecting frame 6. A bolt is provided in the second mounting hole 7, and one end of the bolt is threadedly connected to the first mounting hole 5. The connection between the support ear 4 and the L-shaped connecting frame 6 is completed by the bolt, and then the ducted motor body 2 is fixed on the linkage platform 3.

[0028] Working principle: The ducted motor body 2 is installed on the L-shaped connecting frame 6 through the support ear 4, and the support ear 4 is elastically supported by the rubber pad 8, which can buffer the vibration generated by the ducted motor body 2 when it is working, so that the vibration will not be transmitted to the detection component, thereby ensuring the accuracy of the detection result of the detection component. After the ducted motor body 2 is started, the wind force it generates will cause the ducted motor body 2 to drive the linkage platform 3 to move through the support ear 4 and the L-shaped connecting frame 6, and the linkage platform 3 drives the slider 12 to slide on the guide rail 11, and the thrust detector 10 is used to detect the moving force of the linkage platform 3. The detection component and the guide component are both arranged below the ducted motor body 2 to avoid obstruction to the air duct when the ducted motor body 2 is working, so as to obtain more accurate detection results.

[0029] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does 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 utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ducted motor test bench, comprising a workbench (1) and a ducted motor body (2), characterized in that: A linkage platform (3) is arranged on the workbench (1); a guide component for guiding the linkage platform (3) and a detection component for detecting the moving thrust of the linkage platform (3) are arranged below the ducted motor body (2); two L-shaped connecting frames (6) are installed on the linkage platform (3); rubber pads (8) are arranged on the two L-shaped connecting frames (6); two supporting ears (4) are fixedly connected to the ducted motor body (2), and the supporting ears (4) can be detachably installed on the L-shaped connecting frames (6).

2. A ducted motor test bench according to claim 1, characterized in that: The support ear (4) is provided with a first mounting hole (5), the L-shaped connecting frame (6) is provided with a second mounting hole (7), a bolt is arranged in the second mounting hole (7), and one end of the bolt is threadedly connected to the first mounting hole (5).

3. A ducted motor test bench according to claim 1, characterized in that: The guide assembly comprises two guide rails (11) fixedly connected to the workbench (1), and a slider (12) is slidably connected to each of the two guide rails (11), and the slider (12) is fixedly connected to the linkage platform (3).

4. A ducted motor test bench according to claim 1, characterized in that: The detection assembly comprises a fixing plate (9) mounted on a workbench (1), a thrust detector (10) being mounted on the fixing plate (9), and a detection end of the thrust detector (10) being mounted on a linkage platform (3).

5. The ducted motor test bench according to claim 1, characterized in that: A base (13) is provided below the workbench (1), and four corners of the base (13) are fixedly connected to vertical poles (14), and the top ends of the vertical poles (14) are fixedly connected to the workbench (1).

Images