Wind tunnel test device for high-speed pantograph contact pressure optimization design

Abstract

The utility model discloses a high-speed pantograph contact pressure optimization design wind tunnel test device comprising a wind tunnel, one end of the wind tunnel is provided with a first motor, the first motor is connected with a worm, one end of the wind tunnel is rotatably connected with a cylinder, the cylinder is connected with a worm gear, the worm is engaged with the worm gear, the cylinder is connected with a plate body, and the plate body is connected with the wind tunnel. A pantograph assembly is arranged on the plate body, a plurality of sets of hole bodies are formed in the plate body, the pantograph assembly is in threaded connection with two sets of bolts, the two sets of bolts are in threaded connection with the corresponding hole bodies respectively, and two sets of frame bodies are arranged above the plate body. According to the utility model, the fan blades are driven to rotate, the first motor is started, the worm and the worm gear are driven to be engaged through the external device, the plate body is driven to rotate through the column body, the plate body drives the pantograph assembly to rotate, a multi-angle wind tunnel test is carried out on the pantograph assembly, conditions encountered in actual use of the pantograph are simulated to a certain extent, and the test efficiency is improved. And the test result is relatively accurate.

Description

Technical Field

[0001] This utility model relates to the technical field of pantographs, and in particular to a wind tunnel test device with optimized design of high-speed pantograph contact pressure. Background Technology

[0002] A pantograph is a device installed on the top of vehicles such as electric locomotives and electric trains to obtain electrical energy from overhead contact lines.

[0003] Existing pantograph wind tunnel testing equipment typically fixes the pantograph and conducts wind tunnel tests on it in one direction, which to some extent makes the test results relatively inaccurate. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wind tunnel testing device with optimized design for high-speed pantograph contact pressure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wind tunnel testing device with optimized design for high-speed pantograph contact pressure includes a wind tunnel, a first motor installed at one end of the wind tunnel, the first motor being connected to a worm gear, a column rotatably connected to one end of the wind tunnel, a worm wheel connected to the column, the worm gear meshing with the worm wheel, a plate connected to the column, a pantograph assembly mounted on the plate, multiple sets of holes formed on the plate, two sets of bolts threadedly connected to the pantograph assembly, the two sets of bolts being threadedly connected to corresponding holes, two sets of frames mounted above the plate, each set of frames rotatably connected to a grooved wheel, a rope connecting the two sets of grooved wheels, a second motor installed at one end of one set of frames, the second motor being connected to the grooved wheel.

[0007] Preferably, two sets of electric push rods are installed on the plate, and one end of each set of electric push rods is connected to a corresponding frame.

[0008] Preferably, the multiple sets of holes are evenly distributed on the plate.

[0009] Preferably, a knob is connected to one end of each set of bolts.

[0010] Preferably, one end of the wind tunnel is connected to a housing, the housing is rotatably connected to a worm gear, and the housing is rotatably connected to a column.

[0011] Preferably, the rope is made of a copper-tin alloy.

[0012] Preferably, one end of the wind tunnel is rotatably connected to multiple sets of fan blades.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By coordinating the pantograph assembly, the first motor, and the worm gear, the fan blades are rotated via an external device, starting the first motor, which in turn drives the worm gear and worm wheel to mesh, thereby rotating the plate through the column, and the plate drives the pantograph assembly to rotate. This allows for multi-angle wind tunnel testing of the pantograph assembly, simulating to some extent the conditions encountered by the pantograph in actual use, and the test results are relatively accurate.

[0015] 2. By coordinating the electric push rod, grooved wheel, and rope, the second motor is activated to drive the grooved wheel to rotate, which in turn moves the rope to contact the sliding plate of the pantograph assembly. This simulates the actual usage situation. When the pantograph assembly raises and lowers the sliding plate through its own components, the electric push rod is activated to move the rope to contact the sliding plate of the pantograph assembly, which makes the test results more accurate to a certain extent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a wind tunnel test device for optimizing the contact pressure of a high-speed pantograph proposed in this utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the wind tunnel;

[0018] Figure 3 for Figure 1 A cross-sectional structural schematic diagram of the first motor, worm gear, and housing;

[0019] Figure 4 for Figure 1 A schematic diagram of the structure of the second motor, pulley, and belt;

[0020] Figure 5 for Figure 1 A schematic diagram of the structure of the central column, plate, and worm gear.

[0021] In the diagram: 1. Wind tunnel; 2. First motor; 3. Worm gear; 4. Column; 5. Worm wheel; 6. Plate; 7. Pantograph assembly; 8. Hole; 9. Bolt; 10. Electric actuator; 11. Frame; 12. Grooved wheel; 13. Rope; 14. Second motor; 15. Housing; 16. Fan blade. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1, referring to Figures 1 to 5A wind tunnel testing device with optimized design for high-speed pantograph contact pressure includes a wind tunnel 1 (existing technology, details omitted here). A first motor 2 is installed at one end of the wind tunnel 1; the model of the first motor 2 can be selected according to actual conditions. The first motor 2 is connected to a worm gear 3, which drives the worm gear 3 to rotate. A column 4 is rotatably connected to one end of the wind tunnel 1, and a worm wheel 5 is connected to the column 4. The worm gear 3 meshes with the worm wheel 5, driving the column 4 to rotate. A plate 6 is connected to the column 4, driving the plate 6 to rotate. A pantograph assembly 7 is mounted on the plate 6, driving the pantograph assembly 7 to rotate. Multiple sets of holes 8 are formed on the plate 6. Two sets of bolts 9 are threadedly connected to the pantograph assembly 7. Tightening the bolts 9 secures the pantograph assembly. The pantograph assembly 7 is fixed, and two sets of bolts 9 are threadedly connected to the corresponding holes 8. Two sets of frames 11 are provided on the top of the plate 6. Both sets of frames 11 are rotatably connected to grooved wheels 12. A rope 13 is connected between the two sets of grooved wheels 12. The grooved wheels 12 drive the rope 13 to move and contact the sliding plate part of the pantograph assembly 7 to simulate the actual use of the pantograph assembly 7. A second motor 14 is installed at one end of one set of frames 11. The model of the second motor 14 can be selected according to the actual situation. The second motor 14 is connected to the grooved wheels 12 and drives the grooved wheels 12 to rotate. By conducting multi-angle wind tunnel tests on the pantograph assembly 7, the conditions that the pantograph assembly 7 may encounter in actual use are simulated, and the test results are relatively accurate to a certain extent.

[0024] In this embodiment, two sets of electric push rods 10 are installed on the plate 6. One end of each set of electric push rods 10 is connected to a corresponding frame 11. When the pantograph assembly 7 adjusts the position of the sliding plate part through its own components, the electric push rods 10 are activated to drive the frame 11 to move. The movement of the frame 11 causes the rope 13 to move and contact the sliding plate part of the pantograph assembly 7, simulating the actual use of the pantograph assembly 7. To a certain extent, the test results are relatively accurate. Multiple sets of holes 8 are evenly distributed on the plate 6, which can fix pantograph assemblies 7 of more sizes. One end of each set of bolts 9 is connected to a knob, which makes it easier to rotate the bolts 9. One end of the wind tunnel 1 is connected to a housing 15. The housing 15 is rotatably connected to the worm gear 3 and the column 4, which to a certain extent prevents dust and other debris from affecting the meshing of the worm wheel 5 and the worm gear 3. The rope 13 is made of copper-tin alloy, which has high hardness and good wear resistance. One end of the wind tunnel 1 is rotatably connected to multiple sets of fan blades 16. The fan blades 16 are driven to rotate through an external device to generate wind force to conduct wind tunnel tests on the pantograph assembly 7.

[0025] The working principle of this embodiment is as follows: In use, the pantograph assembly 7 is placed on the plate 6, and the bolts 9 are screwed into the pantograph assembly 7 and the corresponding hole 8 to fix the pantograph assembly 7. The fan blade 16 is driven to rotate through the external device to generate wind power and conduct a wind tunnel test on the pantograph assembly 7. The first motor 2 is started to drive the worm gear 3 to mesh with the worm wheel 5, which drives the column 4 to rotate. The column 4 drives the pantograph assembly 7 to rotate through the plate 6, and conducts a multi-angle wind tunnel test on the pantograph assembly 7 to simulate the situation encountered by the pantograph assembly 7 in actual use. To a certain extent, the test results are relatively accurate. The second motor 14 is started to drive the grooved wheel 12 to rotate, which in turn drives the rope 13 to move and contact the sliding plate part of the pantograph assembly 7, simulating the situation when the pantograph assembly 7 is in actual use. When the pantograph assembly 7 adjusts the height of the sliding plate part through its own components, the electric push rod 10 is started to drive the rope 13 to move and contact the sliding plate part of the pantograph assembly 7, which to a certain extent simulates the contact situation between the sliding plate part of the pantograph assembly 7 and the rope 13 in actual use. The test results are relatively accurate.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wind tunnel testing device with optimized design for high-speed pantograph contact pressure, comprising a wind tunnel (1), characterized in that, The wind tunnel (1) is equipped with a first motor (2) at one end, and the first motor (2) is connected to a worm gear (3). The wind tunnel (1) is rotatably connected to a column (4), and a worm wheel (5) is connected to the column (4). The worm gear (3) meshes with the worm wheel (5). The column (4) is connected to a plate (6), and a pantograph assembly (7) is provided on the plate (6). Multiple sets of holes (8) are opened on the plate (6). The pantograph assembly (7) is threadedly connected to two sets of bolts (9). The two sets of bolts (9) are threadedly connected to the corresponding holes (8). Two sets of frames (11) are provided above the plate (6). Both sets of frames (11) are rotatably connected to grooved wheels (12). A rope (13) is connected between the two sets of grooved wheels (12). A second motor (14) is installed at one end of one set of frames (11), and the second motor (14) is connected to the grooved wheel (12).

2. The wind tunnel testing apparatus for optimizing the contact pressure of a high-speed pantograph according to claim 1, characterized in that, Two sets of electric push rods (10) are installed on the plate (6), and one end of each set of electric push rods (10) is connected to the corresponding frame (11).

3. The wind tunnel test apparatus for optimizing the contact pressure of a high-speed pantograph according to claim 1, characterized in that, Multiple sets of the holes (8) are evenly distributed on the plate (6).

4. The wind tunnel testing apparatus for optimizing the contact pressure of a high-speed pantograph according to claim 1, characterized in that, Both sets of bolts (9) have a knob connected to one end.

5. The wind tunnel testing apparatus for optimizing the contact pressure of a high-speed pantograph according to claim 1, characterized in that, One end of the wind tunnel (1) is connected to a box (15), the box (15) is rotatably connected to the worm (3), and the box (15) is rotatably connected to the column (4).

6. The wind tunnel test apparatus for optimizing the contact pressure of a high-speed pantograph according to claim 1, characterized in that, The rope (13) is made of copper-tin alloy.

7. The wind tunnel testing apparatus for optimizing the contact pressure of a high-speed pantograph according to claim 1, characterized in that, The wind tunnel (1) has multiple sets of fan blades (16) rotatably connected to one end.

Images