A vacuum pump impeller fluid dynamics test tool structure

Abstract

The utility model discloses a kind of vacuum pump impeller fluid power test tool structure, including processing table and vacuum pump main body, the vacuum pump main body is installed on the upper end surface of processing table, water tank is fixedly connected on the lower end surface of processing table, outlet port and inlet port are provided on the vacuum pump main body, two groups of adjusting structures are symmetrically provided on the processing table, the utility model is started by starting reduction motor, the output end of reduction motor drives rotating rod to rotate, rotating rod drives round plate to rotate by pinion and gear, and then can drive No. 1 pipeline assembly or No. 2 pipeline assembly to rotate, so that the size of outlet port and inlet port of different models of vacuum pump main body can be rotated to the position of being conveniently installed with outlet port and inlet port, and then different models of vacuum pump main body need not to be disassembled pipeline when being tested.

Description

Technical Field

[0001] This utility model relates to the field of fluid machinery performance testing technology, and more specifically, to a tooling structure for testing the hydrodynamics of a vacuum pump impeller. Background Technology

[0002] A vacuum pump is a device used to extract gas molecules from a closed space to create, improve, and maintain a vacuum environment. They are widely used in scientific research, industrial manufacturing, semiconductor processing, coating, freeze drying, medical equipment, and many other fields. Vacuum pump impeller hydrodynamic testing is a crucial step in evaluating and optimizing vacuum pump performance, especially when designing new models or improving existing products. This testing primarily focuses on the flow characteristics of the fluid (liquid or gas) inside the impeller, including key parameters such as pressure distribution, velocity field, turbulence, and energy conversion efficiency.

[0003] Traditional vacuum pump performance testing equipment typically uses a fixed pipeline system. When testing pumps of different models or with different installation orientations, it is necessary to frequently disassemble and reassemble the pipeline and sensors, which results in problems such as complex installation, long time consumption, easy leakage, and poor test consistency. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a vacuum pump impeller hydrodynamic testing fixture structure, which solves the problems of frequent disassembly and reassembly of pipelines and sensors when testing pumps of different models or installation directions, resulting in complex installation, long time consumption, easy leakage, and poor test consistency.

[0005] To achieve the above objectives, this utility model provides a vacuum pump impeller hydrodynamic testing fixture structure, including a processing table and a vacuum pump body. The vacuum pump body is mounted on the upper surface of the processing table, and a water tank is fixedly connected to the lower surface of the processing table. The vacuum pump body is provided with an outlet port and an inlet port. Two sets of adjustment structures are symmetrically arranged on the processing table. The two sets of adjustment structures are respectively provided with a first pipe assembly and a second pipe assembly, which are respectively connected to the outlet port and the inlet port.

[0006] Each set of adjustment structures includes a geared motor and a circular plate. The output end of each geared motor is fixedly connected to a rotating rod. The lower end of each rotating rod is rotatably connected to the upper surface of the processing table. A small gear is fixedly sleeved on each rotating rod. Each small gear is meshed with a large gear. Each large gear is fixedly sleeved on the circular plate. Each circular plate is rotatably mounted on the processing table.

[0007] The beneficial effects of this utility model are:

[0008] By starting the geared motor, the output of the geared motor drives the rotating rod to rotate. The rotating rod drives the circular plate to rotate through the small gear and the large gear, which in turn drives the first or second pipe assembly to rotate. This allows the first or second pipe assembly to be rotated to a position that is convenient for installation with the outlet and inlet ports of different models of vacuum pumps, so that the pipes do not need to be disassembled when testing different models of vacuum pumps.

[0009] Preferably, the No. 1 pipe assembly includes multiple No. 1 installation pipes and multiple No. 1 hoses. Each No. 1 installation pipe is fixedly inserted into the circular plate, and one end of each No. 1 hose is installed on the No. 1 installation pipe. One end of one of the No. 1 hoses is connected to the water outlet port. The diameters of the multiple No. 1 installation pipes and No. 1 hoses are all different.

[0010] Preferably, the second pipe assembly includes multiple second installation pipes and multiple second hoses. Each second installation pipe is fixedly inserted into the circular plate, and one end of each second hose is installed on the second installation pipe. One end of one of the second hoses is connected to the water inlet port. The diameters of the multiple second installation pipes and second hoses are all different.

[0011] Preferably, the lower ends of the plurality of No. 1 and No. 2 installation pipes are respectively fixedly connected to a connecting cone, and the lower end of each connecting cone is fixedly connected to a rotating connector. Fixed pipes are symmetrically fixedly inserted on the side wall of the water tank, and each fixed pipe is rotatably connected to a corresponding rotating connector.

[0012] Preferably, each of the No. 1 and No. 2 installation pipes is equipped with a pipe water pressure detector and a flow meter, and a display screen is fixedly connected to the side wall of the water tank.

[0013] Preferably, an inlet pipe and a drain pipe are fixedly inserted into the side wall of the water tank, and a switch valve is provided on the drain pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By starting the geared motor, the output of the geared motor drives the rotating rod to rotate. The rotating rod drives the circular plate to rotate through the small gear and the large gear, which in turn drives the first or second pipe assembly to rotate. This allows the first or second pipe assembly to be rotated to a position that is convenient for installation with the outlet and inlet ports of different models of vacuum pumps, so that the pipes do not need to be disassembled when testing different models of vacuum pumps. Attached Figure Description

[0016] Figure 1 This is an isometric view of one side of the overall structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0019] The meanings of the labels in the diagram are as follows:

[0020] 1. Processing table; 2. Water tank; 201. Inlet pipe; 202. Drain pipe; 3. Vacuum pump body; 301. Outlet port; 302. Inlet port; 4. Adjustment structure; 401. Gear motor; 402. Rotating rod; 403. Small gear; 404. Large gear; 405. Circular plate; 5. Pipe assembly No. 1; 501. Installation pipe No. 1; 502. Flexible hose No. 1; 6. Pipe assembly No. 2; 601. Installation pipe No. 2; 602. Flexible hose No. 2; 7. Connecting cone; 8. Rotating connector; 9. Fixed pipe; 10. Pipeline water pressure detector; 11. Flow meter; 12. Display screen. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-3 This embodiment provides a vacuum pump impeller hydrodynamic testing fixture structure, including a processing table 1 and a vacuum pump body 3. The vacuum pump body 3 is installed on the upper end surface of the processing table 1, and a water tank 2 is fixedly connected to the lower end surface of the processing table 1. The vacuum pump body 3 is provided with an outlet port 301 and an inlet port 302. Considering that when testing vacuum pump bodies 3 of different models or installation directions, it is necessary to frequently disassemble and reassemble pipelines and sensors, two sets of adjustment structures 4 are symmetrically arranged on the processing table 1. The two sets of adjustment structures 4 are respectively provided with a first pipe assembly 5 and a second pipe assembly 6. The first pipe assembly 5 and the second pipe assembly 6 are respectively connected to the outlet port 301 and the inlet port 302.

[0023] Each adjustment structure 4 includes a geared motor 401 and a circular plate 405. The output end of each geared motor 401 is fixedly connected to a rotating rod 402. The lower end of each rotating rod 402 is rotatably connected to the upper surface of the processing table 1. A small gear 403 is fixedly sleeved on each rotating rod 402. Each small gear 403 is meshed with a large gear 404. Each large gear 404 is fixedly sleeved on the circular plate 405. Each circular plate 405 is rotatably mounted on the processing table 1.

[0024] In summary, the improvement of this embodiment lies in:

[0025] By starting the geared motor 401, the output end of the geared motor 401 drives the rotating rod 402 to rotate. The rotating rod 402 drives the circular plate 405 to rotate through the small gear 403 and the large gear 404, which in turn drives the first pipe assembly 5 or the second pipe assembly 6 to rotate. This allows different first pipe assemblies 5 or second pipe assemblies 6 to be rotated to positions that are convenient for installation with the outlet port 301 and inlet port 302, according to the size of the outlet port 301 and inlet port 302 of different models of vacuum pump bodies 3. This eliminates the need to disassemble the pipes when testing different models of vacuum pump bodies 3.

[0026] Based on the above, other structures also need to be disclosed in detail, such as:

[0027] Please see Figure 1 Considering that different models of vacuum pumps require different pipes when installing pipes at the water outlet port 301, the first pipe assembly 5 includes multiple first installation pipes 501 and multiple first hoses 502. Each first installation pipe 501 is fixedly inserted into the circular plate 405, and one end of each first hose 502 is installed on the first installation pipe 501. One end of one first hose 502 is connected to the water outlet port 301. The diameters of the multiple first installation pipes 501 and first hoses 502 are all different. The first hoses 502 of different diameters are suitable for the water outlet port 301 on different models of vacuum pumps.

[0028] Please see Figure 1 and Figure 3 Considering that different models of vacuum pump bodies 3 require different pipes for installing water inlet ports 302, the second pipe assembly 6 includes multiple second mounting pipes 601 and multiple second hoses 602. Each second mounting pipe 601 is fixedly inserted into the circular plate 405, and one end of each second hose 602 is installed on the second mounting pipe 601. One end of one of the second hoses 602 is connected to the water inlet port 302. The diameters of the multiple second mounting pipes 601 and second hoses 602 are all different. The second hoses 602 of different diameters are suitable for the water inlet ports 302 on different models of vacuum pump bodies 3.

[0029] Please see Figure 2 Considering that water will be drawn out of water tank 2, tested again, and then reintroduced into water tank 2, the lower ends of multiple No. 1 installation pipes 501 and No. 2 installation pipes 601 are respectively fixedly connected to connecting cones 7. The lower end of each connecting cone 7 is fixedly connected to a rotating connector 8. Fixed pipes 9 are symmetrically fixed and inserted on the side wall of water tank 2. Each fixed pipe 9 is rotatably connected to the corresponding rotating connector 8. Water is introduced into or drawn out of water tank 2 through the connecting cones 7 and fixed pipes 9.

[0030] Please see Figure 1 and Figure 2 Considering the need to test the performance of the vacuum pump body 3, each No. 1 installation pipe 501 and No. 2 installation pipe 601 is equipped with a pipeline water pressure detector 10 and a flow meter 11. A display screen 12 is fixedly connected to the side wall of the water tank 2. The pipeline water pressure detector 10 and the flow meter 11 detect the flow rate of the water flowing through the No. 1 installation pipe 501 and No. 2 installation pipe 601 and detect the water pressure in the No. 1 installation pipe 501 and No. 2 installation pipe 601. The test results are displayed on the display screen 12.

[0031] Please see Figure 1 and Figure 2 Considering the need to add water to water tank 2 and the need to drain water from water tank 2, an inlet pipe 201 and a drain pipe 202 are fixedly inserted into the side wall of water tank 2. A switch valve is installed on the drain pipe 202. Water is added from the inlet pipe 201 and drained from the drain pipe 202 when the switch valve is opened.

[0032] In summary, the working principle of this solution is as follows:

[0033] The operator installs the vacuum pump body 3 on the processing table 1. When testing different models of vacuum pump bodies 3, the operator starts the reduction motor 401. The output end of the reduction motor 401 drives the rotating rod 402 to rotate. The rotating rod 402 drives the circular plate 405 to rotate through the small gear 403 and the large gear 404, which in turn drives the first pipe assembly 5 or the second pipe assembly 6 to rotate. This allows the first hose 502 and the second hose 602 of different diameters to be rotated to a position that is convenient for installation with the outlet port 301 and the inlet port 302 of different models of vacuum pump bodies 3, so that the pipes do not need to be disassembled when testing different models of vacuum pump bodies 3. The water pressure detector 10 and the flow meter 11 on the first installation pipe 501 and the second installation pipe 601 are used to detect the flow rate of water flowing through the first installation pipe 501 and the second installation pipe 601 and to detect the water pressure in the first installation pipe 501 and the second installation pipe 601.

[0034] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum pump impeller hydrodynamic testing fixture structure, comprising a processing table (1) and a vacuum pump body (3), wherein the vacuum pump body (3) is mounted on the upper end face of the processing table (1), and a water tank (2) is fixedly connected to the lower end face of the processing table (1), and the vacuum pump body (3) is provided with an outlet port (301) and an inlet port (302), characterized in that: Two sets of adjustment structures (4) are symmetrically arranged on the processing table (1). The two sets of adjustment structures (4) are respectively equipped with a first pipe assembly (5) and a second pipe assembly (6). The first pipe assembly (5) and the second pipe assembly (6) are respectively connected to the water outlet port (301) and the water inlet port (302). Each adjustment structure (4) includes a geared motor (401) and a circular plate (405). The output end of each geared motor (401) is fixedly connected to a rotating rod (402). The lower end of each rotating rod (402) is rotatably connected to the upper surface of the processing table (1). A small gear (403) is fixedly sleeved on each rotating rod (402). Each small gear (403) is meshed with a large gear (404). Each large gear (404) is fixedly sleeved on the circular plate (405). Each circular plate (405) is rotatably mounted on the processing table (1).

2. The vacuum pump impeller hydrodynamic testing fixture structure according to claim 1, characterized in that: The first pipe assembly (5) includes multiple first installation pipes (501) and multiple first hoses (502). Each first installation pipe (501) is fixedly inserted on the circular plate (405). One end of each first hose (502) is installed on the first installation pipe (501). One end of one of the first hoses (502) is connected to the water outlet port (301). The diameters of the multiple first installation pipes (501) and first hoses (502) are all different.

3. The vacuum pump impeller hydrodynamic testing fixture structure according to claim 2, characterized in that: The second pipe assembly (6) includes multiple second installation pipes (601) and multiple second hoses (602). Each second installation pipe (601) is fixedly inserted into the circular plate (405). One end of each second hose (602) is installed on the second installation pipe (601). One end of one of the second hoses (602) is connected to the water inlet port (302). The diameters of the multiple second installation pipes (601) and second hoses (602) are all different.

4. The vacuum pump impeller hydrodynamic testing fixture structure according to claim 3, characterized in that: The lower ends of the multiple No. 1 installation pipe (501) and No. 2 installation pipe (601) are respectively fixedly connected to a connecting cone (7), and the lower end of each connecting cone (7) is fixedly connected to a rotating connector (8). Fixed pipes (9) are symmetrically fixedly inserted on the side wall of the water tank (2), and each fixed pipe (9) is rotatably connected to the corresponding rotating connector (8).

5. The vacuum pump impeller hydrodynamic testing fixture structure according to claim 4, characterized in that: Each of the first installation pipe (501) and the second installation pipe (601) is equipped with a pipe water pressure detector (10) and a flow meter (11), and a display screen (12) is fixedly connected to the side wall of the water tank (2).

6. The vacuum pump impeller hydrodynamic testing fixture structure according to claim 1, characterized in that: The water tank (2) has an inlet pipe (201) and a drain pipe (202) fixedly inserted on its side wall, and the drain pipe (202) is equipped with a switch valve.

Images