Multi-type fan experiment fixing device

Abstract

The utility model provides a multi-type fan experiment fixing device, which comprises a mounting bottom plate and a support frame body, the support frame body comprises an upper layer frame and a lower layer frame, a front mounting plate of the upper layer frame is provided with a first mounting hole for fixing a brake resistor fan, and the front mounting plate of the lower layer frame is provided with a second mounting hole for fixing a brake resistor fan. A second mounting hole used for fixing an auxiliary inverter fan is formed in a back mounting plate of the upper-layer frame, inclined side plates inclining upwards are arranged on the left side and the right side of the upper-layer frame respectively, reserved mounting holes are formed in the inclined side plates, and a third mounting hole used for fixing an air conditioner condensate fan is formed in a top plate of the upper-layer frame. The auxiliary fan experiment tool is simple in structure, reasonable in design, capable of fixing various different types of fans, capable of completing experiment operation of various auxiliary fans only by manufacturing one tool, convenient and flexible to use and high in practical value.

Description

Technical Field

[0001] This utility model relates to the technical field of fan fixing devices for subway vehicles, specifically a multi-type fan experimental fixing device. Background Technology

[0002] In subway cars, auxiliary inverters, traction inverters, and air conditioning systems all employ forced-pump cooling. During this cooling process, the operating status of the cooling fan components directly impacts vehicle operational safety. Fan failures can directly cause delays and mid-journey stops, significantly affecting safe operation and potentially leading to equipment damage or even accidents. Therefore, when a vehicle reaches its overhaul standard, the cooling fan components need to be disassembled to replace bearings, seals, and fasteners, and to inspect the condition of the fan blades, mounting bases, and supports, ensuring safe and reliable operation. After disassembly and reassembly, a crucial method for verifying the fan's operating status is a run-in test. This accurately measures the fan's operating condition and vibration under actual operating conditions, eliminating the impact of bearing break-in and seal / fastener condition issues during disassembly and reassembly. This ensures that the operating status, noise, and vibration generated during the pre-installation run-in test meet the initial design requirements and parameter standards.

[0003] Currently, there is no device that can simultaneously fix the cooling fan components in the different systems mentioned above during experiments. Currently, each manufacturer provides its own test bench and corresponding fan component fixing fixtures, designed specifically for their products, resulting in a large number of devices and fixtures, and making use cumbersome. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a multi-type fan test fixing device. By integrating the cooling fans of different systems into one fan test fixing device, the fan components of multiple systems can be installed and fixed, ensuring the normal operation of the fan run-in test.

[0005] The technical solution provided by this utility model is as follows: a multi-type fan test fixing device, including a mounting base plate and a support frame. The support frame includes an upper frame and a lower frame. The front mounting plate of the upper frame has a first mounting hole for fixing a braking resistor fan, and the back mounting plate of the upper frame has a second mounting hole for fixing an auxiliary inverter fan. The left and right sides of the upper frame are respectively upwardly inclined side plates, and each of the inclined side plates has a reserved mounting hole. The top plate of the upper frame has a third mounting hole for fixing an air conditioner condenser fan.

[0006] Furthermore, a partition is provided between the upper frame and the lower frame, and ventilation holes are provided on the partition.

[0007] Furthermore, the lower frame is a cuboid frame, and at least one round hole is provided on each of the four fixed upright plates on the front, back, left, and right sides of the lower frame for ventilation or as a reserved fixing hole.

[0008] Furthermore, the lower frame is provided with a vertical intermediate stiffening plate in the middle to enhance the support strength. A motor mounting plate is horizontally fixed on one side of the intermediate stiffening plate, and a flat stiffening plate is provided on the other side to reserve space for the installation and fixing of other motors.

[0009] Furthermore, the side plate of the lower frame is provided with a square operating hole to facilitate fixing the motor to the motor mounting plate.

[0010] Furthermore, the first mounting hole is circular, and multiple threaded holes for fixing the brake resistor fan by passing through bolts are evenly distributed on the outer circumference of the first mounting hole.

[0011] Furthermore, the second mounting hole is square, and bolts are used to secure the auxiliary inverter fan at the four outer corners of the second mounting hole.

[0012] Furthermore, the mounting base plate is provided with multiple reinforcing ribs.

[0013] Furthermore, fixing holes are provided at the four corners of the mounting base plate for passing bolts through to fix the entire device to the ground.

[0014] Furthermore, the inclined side plate has an included angle of 45°, and both the left and right inclined side plates have two reserved mounting holes along the inclined direction.

[0015] The beneficial effects of this utility model are: ① Effectively solves the problem of excessive vibration caused by insecure fan fixing; ② Simulates the airflow direction of the fan under real conditions, ensuring that the fan's operating state is simulated under real working conditions, and ensuring the accuracy of measured parameters; ③ One tooling with multiple uses eliminates the need to customize different fan fixing tooling according to different auxiliary fan types. The rational layout of the designed multi-functional experimental fixing tooling ensures that the air volume meets the requirements while having more expandability; ④ Designed according to different system fan components and installation structures, it ensures that different types of cooling fans can be installed and fixed on this tooling, which is low-cost and easy to promote; ⑤ Saves space in the work station, reduces the risk points in the operation process, and avoids the risk of falling and bumping during the fan switching hoisting process; ⑥ Saves the transfer time of fan components of each system, reduces equipment procurement, labor and time costs, better integrates resources, and thus improves the work efficiency of fan component testing during the overhaul. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 The right view;

[0018] Figure 3 yes Figure 2 A schematic diagram of the AA direction;

[0019] In the diagram: 1—Mounting base plate, 2—Supporting frame, 2-1—Upper frame, 2-2—Lower frame, 2-3—Partition plate, 3—First mounting hole, 4—Second mounting hole, 5—Reserved mounting hole, 6—Third mounting hole, 7—Ventilation hole, 8—Round hole, 9—Intermediate vertical stiffener plate, 10—Motor mounting plate, 11—Flat stiffener plate, 12—Square operating hole, 13—Threaded hole, 14—Reinforcing stiffener plate, 15—Fixing hole. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "front," "rear," "upper," and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1-3 The illustrated multi-type fan test fixing device includes a mounting base plate 1 and a support frame 2. The support frame 2 includes an upper frame 2-1 and a lower frame 2-2. The front mounting plate of the upper frame 2-1 has a first mounting hole 3 for fixing a braking resistor fan, and the back mounting plate of the upper frame 2-1 has a second mounting hole 4 for fixing an auxiliary inverter fan. The left and right sides of the upper frame 2-1 are respectively inclined side plates that slope upwards, and each inclined side plate has a reserved mounting hole 5. The top plate of the upper frame 2-1 has a third mounting hole 6 for fixing an air conditioning condenser fan.

[0024] A partition 2-3 is provided between the upper frame 2-1 and the lower frame 2-2, and ventilation holes 7 are provided on the partition 2-3.

[0025] The lower frame 2-2 is a cuboid frame. At least one round hole 8 is provided on each of the four fixed upright plates on the front, back, left, and right sides of the lower frame 2-2 for ventilation or as a pre-drilled fixing hole. The interior of the lower frame 2-2 is equipped with a vertical intermediate stiffening plate 9 to enhance support strength and reduce vibration frequency. A motor mounting plate 10 is horizontally fixed to one side of the intermediate stiffening plate 9, and bolts are used to secure it according to the size of the motor mounting screw holes for fixing a small motor for testing. A flat stiffening plate 11 is provided on the other side of the intermediate stiffening plate 9 to allow for the installation and fixing of other motors, while also strengthening the installation fixture. Square operating holes 12 are provided on the side plates of the lower frame 2-2 to facilitate fixing the motor to the motor mounting plate.

[0026] The first mounting hole 3 is circular, and multiple threaded holes 13 for fixing the brake resistor fan by bolts are evenly distributed on the outer circumference of the first mounting hole 3. Specifically, M10 bolts are used for fastening, and 12 threaded holes are evenly distributed on the outer side of the first mounting hole with a diameter of 550mm.

[0027] The second mounting hole 4 is square, and bolts are used to secure the auxiliary inverter fan at the four outer corners of the second mounting hole 4. Specifically, M10 bolts are used to secure the fan at the four corners of the rectangle, which is 390mm long and 310mm wide, and a hole is made in the middle to ensure that the ventilation volume meets the fan load requirements.

[0028] The mounting base plate 1 is provided with multiple reinforcing ribs 14. Specifically, the reinforcing ribs 14 are trapezoidal steel plates, which are located at the four corners and the middle along the length of the mounting base plate 1. Ten trapezoidal steel plates (60mm wide, 330mm high, and 12mm thick) are welded to the mounting base plate 1 and the lower frame 2-2 to increase the overall support capacity and enhance the stability of the tooling. This eliminates the influence of the tooling's own vibration on the equipment's fan test.

[0029] Fixing holes 15 are provided at each of the four corners of the mounting base plate 1, for passing bolts through to fix the entire device to the ground.

[0030] The inclined side plate has an included angle of 45°, and both the left and right inclined side plates have two reserved mounting holes 5 along the inclined direction for installing fan mounting brackets for other system cooling fans that are installed at a 45° angle.

[0031] This invention involves disassembling and overhauling the auxiliary inverter assembly according to technical requirements, replacing the corresponding bearings, seals, and fasteners, injecting new grease, installing the mounting bracket and fan blades of the auxiliary inverter fan, with the fan's cooling duct running vertically up and down, and securing the fan assembly to the fan bracket using four M10 bolts and washers. The motor power supply is then connected according to the vehicle wiring method. Simultaneously, vibration and temperature probes from the test bench are used to test the drive and non-drive ends. During operation, the vibration probe is used to test the entire fan assembly to ensure the vibration frequency meets technical requirements.

[0032] This invention involves disassembling and overhauling the brake resistor fan assembly according to technical requirements, replacing the corresponding bearings, seals, and fasteners, injecting new grease, installing the fan casing and blades of the brake resistor fan, connecting the brake resistor fan assembly's connectors, and tightening the entire fan casing with 12 M10 bolts. After completion, vibration and temperature probes are installed and tested on the motor drive and non-drive ends, and probes are used to test several key parts of the fan.

[0033] This utility model uses multiple fixed plates welded together to form an integral support frame. Holes are made in areas where no mounting holes are provided to ensure unobstructed access for the entire fixture. This ensures that each system's fan components can meet their ventilation requirements. Reserved spaces are also made for other parts, allowing for drilling and tapping based on the mounting hole spacing and size of the fan components when new system fan cooling components need to be tested. Selective hole making based on the operating conditions and airflow direction of the fan components achieves the fixture's versatility and ease of promotion, comprehensively reducing costs and increasing efficiency. This also enables the fixture to be expanded to multiple functions, reducing the need for different test benches for different fan component run-in tests, simplifying the test bench, reducing transportation costs, and improving operational efficiency.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-type fan test fixing device, characterized in that, The system includes a mounting base plate (1) and a support frame (2). The support frame (2) includes an upper frame (2-1) and a lower frame (2-2). The front mounting plate of the upper frame (2-1) has a first mounting hole (3) for fixing the braking resistor fan. The back mounting plate of the upper frame (2-1) has a second mounting hole (4) for fixing the auxiliary inverter fan. The left and right sides of the upper frame (2-1) are inclined side plates that slope upwards. Each inclined side plate has a reserved mounting hole (5). The top plate of the upper frame (2-1) has a third mounting hole (6) for fixing the air conditioner condenser fan.

2. The multi-type fan test fixing device according to claim 1, characterized in that, A partition (2-3) is provided between the upper frame (2-1) and the lower frame (2-2), and ventilation holes (7) are provided on the partition (2-3).

3. The multi-type fan test fixing device according to claim 1, characterized in that, The lower frame (2-2) is a cuboid frame. At least one round hole (8) is provided on each of the four fixed upright plates on the front, back, left and right sides of the lower frame (2-2) for ventilation or as a reserved fixing hole.

4. The multi-type fan test fixing device according to claim 1, characterized in that, The lower frame (2-2) is provided with a vertical intermediate stiffening plate (9) to strengthen the support. A motor mounting plate (10) is horizontally fixed on one side of the intermediate stiffening plate (9), and a flat stiffening plate (11) is provided on the other side to reserve space for the installation and fixing of other motors.

5. The multi-type fan test fixing device according to claim 4, characterized in that, The lower frame (2-2) has a square operating hole (12) on its side plate to facilitate fixing the motor to the motor mounting plate.

6. The multi-type fan test fixing device according to claim 1, characterized in that, The first mounting hole (3) is circular, and multiple threaded holes (13) for fixing the brake resistor fan by passing through bolts are evenly distributed on the outer circumference of the first mounting hole (3).

7. The multi-type fan test fixing device according to claim 1, characterized in that, The second mounting hole (4) is square, and the auxiliary inverter fan is fastened with bolts at the four outer corners of the second mounting hole (4).

8. The multi-type fan test fixing device according to claim 1, characterized in that, The mounting base plate (1) is provided with multiple reinforcing ribs (14).

9. The multi-type fan test fixing device according to claim 1, characterized in that, Fixing holes (15) are provided at the four corners of the mounting base plate (1) for passing bolts through to fix the entire device to the ground.

10. The multi-type fan test fixing device according to claim 1, characterized in that, The inclined side plate has an included angle of 45°, and both the left and right inclined side plates have two reserved mounting holes (5) along the inclined direction.

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