Alternating hydrostatic test device

Abstract

The utility model relates to the technical field of motor testing, and discloses an alternating water pressure testing device which comprises a testing tank body, and a tank cover is arranged at the top end of the testing tank body. When the alternating water pressure test device is used through the test device, a test motor stator workpiece is placed at the top end of a fixing plate in a test tank body, then a tank cover is closed, the test tank body and the tank cover are connected and fixed through a fixing nut and a fixing bolt, and when water is injected into the test tank body, water is injected into the test tank body. After the water conveying pipe is connected into an external water supply pipe, water is injected into the test tank body and the tank cover through the water conveying pipe, the connecting pipe and the water injection pipe, and meanwhile, the filter screen is fixed in the connecting ring in the water injection process so that particle impurities and the like contained in a water injection source can be filtered and removed in an auxiliary mode, and the purity of injected water is improved; dirt and scaling in the test device are reduced, and the problem that auxiliary impurity filtering is inconvenient to carry out on a test water source guided into the test device is solved.

Description

Technical Field

[0001] This utility model relates to the field of motor testing technology, specifically to an alternating water pressure testing device. Background Technology

[0002] Shaftless propulsion motors are a new type of propulsion technology. They utilize the characteristics of shaftless motors to directly integrate the motor and the propeller, achieving lightweight, high efficiency, and low noise. In the design, production, and manufacturing process of shaftless propulsion motors, alternating hydrostatic testing equipment is needed to conduct hydrostatic tests on the internal motor stator components to test their strength and sealing performance, ensuring their reliable and safe operation and preventing potential problems during operation.

[0003] However, when the alternating water pressure testing device is used to perform water pressure tests on the motor stator, some particulate impurities contained in the external water source will directly enter the interior of the testing device during the water injection test. Over time, these impurities will accumulate and deposit inside the testing device, easily forming scale. This not only causes dirt inside the testing device but is also difficult to clean later. This is a drawback, as it makes it inconvenient to perform auxiliary impurity filtration on the test water source introduced into the testing device.

[0004] Now, a novel alternating hydrostatic testing device is proposed to address the aforementioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide an alternating water pressure testing device to solve the problem mentioned in the background art of the inconvenience of filtering impurities from the test water source introduced into the testing device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an alternating water pressure testing device, comprising a test tank, a tank cover at the top of the test tank, a water injection pipe fixed to the left side of the top of the tank cover, a first valve fixed to the left side of the water injection pipe, a connecting pipe fixed to the left side of the first valve, a connecting ring on the left side of the connecting pipe, and a water supply pipe on the left side of the connecting ring. Connecting flanges are welded and fixed to the right side of the water supply pipe and the left side of the connecting pipe, respectively. A filter screen is fixed inside the connecting ring, sealing gaskets are provided on both sides of the connecting ring, a connecting bolt is passed through the inside of the connecting flange, and threaded holes for installation with the connecting bolts are provided inside the inside of both sides of the connecting ring.

[0007] Furthermore, the water supply pipe is connected to the interior of the connecting pipe via a connecting ring, and the connecting pipe is connected to the interior of the water injection pipe.

[0008] Furthermore, the connecting flange has four sets of equally spaced annular holes on one side of the sealing gasket, and the threaded holes are respectively provided in four sets of equally spaced holes on both sides of the connecting ring.

[0009] Preferably, the top of the can lid is provided with a top cover, and support rods are welded and fixed at the four corners of the top of the can lid, and lifting rings are welded and fixed on both sides of the top of the can lid.

[0010] Furthermore, the top end of the support rod is welded and fixed to the top end inside the top cover, and the top end of the lifting ring penetrates through the interior of the top end of the top cover.

[0011] Preferably, side covers are symmetrically arranged at the bottom ends of both sides of the test tank, and three sets of mounting bolts are equally spaced on the right side of the side covers. The mounting bolts penetrate the interior of the side covers. Three sets of fixing feet are welded and fixed at equal intervals on both sides of the test tank, and screw holes that cooperate with the mounting bolts are opened inside the right side of the fixing feet.

[0012] Preferably, a lower connecting sleeve is welded and fixed to the top of the outer side of the test tank, and an upper connecting sleeve is welded and fixed to the bottom of the outer side of the tank cover. A fixing bolt is provided at the bottom of the lower connecting sleeve, and the top of the fixing bolt passes through the interior of the lower connecting sleeve and the upper connecting sleeve respectively and is rotatably connected to a fixing nut. Multiple sets of fixing bolts are provided at equal intervals at the bottom of the lower connecting sleeve. Support legs are welded and fixed to the four corners of the bottom of the test tank. A drain pipe is fixed to the bottom of the test tank, and a second valve is provided on the drain pipe.

[0013] Preferably, a control console is provided on the right side of the test tank, and a pressurization component is provided inside the control console. A gas supply pipe is installed and fixed at the output end of the pressurization component. An air inlet is fixed on the right side of the top of the tank cover. The top end of the gas supply pipe is fixedly connected to the air inlet. A fixing plate is welded and fixed at the bottom of the interior of the test tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the alternating water pressure test device not only facilitates the auxiliary impurity filtration of the test water source introduced into the test device, facilitates the dust prevention of the top of the test device, but also facilitates the external protection of the test device.

[0015] The testing device is equipped with a test tank, a tank cover, a water supply pipe, a connecting ring, a connecting pipe, a connecting flange, connecting bolts, threaded holes, a filter screen, and a sealing gasket. When using the testing device, the stator workpiece of the test motor is placed on the top of the fixed plate inside the test tank. Then, the tank cover is closed, and the connection between the test tank and the tank cover is fixed using fixing nuts and fixing bolts. When filling the test tank with water, the water supply pipe is connected to the external water supply pipe, and water is injected into the test tank and the tank cover through the water supply pipe, the connecting pipe, and the water injection pipe. At the same time, a filter screen is fixed inside the connecting ring during the water injection process, which can assist in filtering and removing some particulate impurities in the water source, improving the purity of the injected water and reducing dirt and scale inside the testing device.

[0016] The test device is equipped with a test tank, a tank cover, a lifting ring, a top cover, and a support rod. When the test device is in use, the top cover is fixed to the top of the tank cover by the support rod. The top cover can provide an auxiliary outer cover to protect the top of the test device from dust, reducing the accumulation of dust and dirt on the top of the test device during long-term use and the inconvenience of cleaning.

[0017] The test device is equipped with a test tank, a tank cover, side covers, fixing feet, mounting bolts and screw holes. When in use, the side covers are installed and fixed at the bottom of both sides of the test tank using mounting bolts and screw holes. The two sets of side covers, which are symmetrically arranged, can provide auxiliary outer protection against impact to the bottom of the test device and reduce deformation and damage to the outside of the test device. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a partial enlarged cross-sectional view of the connecting ring of this utility model.

[0020] Figure 3 This is a top view of the test tank structure of this utility model;

[0021] Figure 4 This is a top view of the side cover structure of this utility model.

[0022] In the diagram: 1. Support leg; 2. Test tank body; 3. Fixing plate; 4. Lower connecting sleeve; 5. Upper connecting sleeve; 6. Tank cover; 7. Water supply pipe; 8. Connecting ring; 9. Connecting pipe; 10. First valve; 11. Water injection pipe; 12. Lifting ring; 13. Top cover; 14. Support rod; 15. Gas supply pipe; 16. Air inlet; 17. Fixing nut; 18. Fixing bolt; 19. Control console; 20. Pressurization assembly; 21. Drain pipe; 22. Second valve; 23. Side cover; 24. Connecting flange; 25. Connecting bolt; 26. Threaded hole; 27. Filter screen; 28. Sealing gasket; 29. ​​Fixing foot; 30. Mounting bolt; 31. Screw hole. Detailed Implementation

[0023] 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.

[0024] Example 1: Please refer to Figure 1-4 An alternating water pressure testing device includes a test tank 2, a tank cover 6 at the top of the test tank 2, a water injection pipe 11 fixed to the left side of the top of the tank cover 6, a first valve 10 fixed to the left side of the water injection pipe 11, a connecting pipe 9 fixed to the left side of the first valve 10, a connecting ring 8 on the left side of the connecting pipe 9, a water supply pipe 7 on the left side of the connecting ring 8, a connecting flange 24 welded to the right side of the outside of the water supply pipe 7 and the left side of the outside of the connecting pipe 9, a filter screen 27 fixed inside the connecting ring 8, a sealing gasket 28 on both sides of the connecting ring 8, a connecting bolt 25 penetrating through the inside of the connecting flange 24, and threaded holes 26 on both sides of the connecting ring 8 that mate with the connecting bolt 25.

[0025] The water supply pipe 7 is connected to the inside of the connecting pipe 9 through the connecting ring 8. The connecting pipe 9 is connected to the inside of the water injection pipe 11. The connecting flange 24 has four sets of equally spaced rings on one side of the sealing gasket 28. The threaded holes 26 are respectively opened in four sets of equally spaced holes on both sides of the connecting ring 8.

[0026] Specifically, such as Figure 1 and Figure 2As shown, after placing the stator workpiece of the test motor on the top of the fixing plate 3 inside the test tank 2, the tank cover 6 is then closed and the test tank 2 and the tank cover 6 are connected and fixed using fixing nuts 17 and fixing bolts 18. When filling the test tank 2 with water, the water supply pipe 7 is connected to the external water supply pipe, and water is filled into the test tank 2 and the tank cover 6 through the water supply pipe 7, the connecting pipe 9 and the water injection pipe 11. At the same time, a filter screen 27 is fixed inside the connecting ring 8 during the water injection process, which can assist in filtering and removing some particulate impurities contained in the water source, thereby improving the purity of the water.

[0027] Example 2: A top cover 13 is provided at the top of the can lid 6. Support rods 14 are welded and fixed at the four corners of the top of the can lid 6. Lifting rings 12 are welded and fixed on both sides of the top of the can lid 6. The top of the support rods 14 is welded and fixed to the top of the inside of the top cover 13. The top of the lifting rings 12 penetrates the inside of the top of the top cover 13.

[0028] Specifically, such as Figure 1 As shown, a top cover 13 is fixed to the top of the can lid 6 by a support rod 14. The top cover 13 can provide an auxiliary outer cover to protect the top of the test device from dust, reducing the accumulation of dust and dirt on the top of the test device during long-term test use.

[0029] Example 3: Side covers 23 are symmetrically arranged at the bottom of both sides of the test tank 2, and three sets of mounting bolts 30 are equally spaced on the right side of the side cover 23. The mounting bolts 30 penetrate the interior of the side cover 23. Three sets of fixing feet 29 are welded and fixed at equal intervals on both sides of the test tank 2, and the right side of the fixing feet 29 is provided with screw holes 31 that cooperate with the mounting bolts 30 for installation.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, side covers 23 are installed and fixed at the bottom of both sides of the test tank 2 using mounting bolts 30 and screw holes 31. The two sets of side covers 23 arranged symmetrically can provide auxiliary outer cover protection against impact to the bottom of the test device.

[0031] The top of the test tank 2 is welded and fixed with a lower connecting sleeve 4, and the bottom of the tank cover 6 is welded and fixed with an upper connecting sleeve 5. The bottom of the lower connecting sleeve 4 is provided with a fixing bolt 18, and the top of the fixing bolt 18 passes through the interior of the lower connecting sleeve 4 and the upper connecting sleeve 5 respectively and is rotatably connected with a fixing nut 17. Multiple sets of fixing bolts 18 are evenly spaced at the bottom of the lower connecting sleeve 4. Support legs 1 are welded and fixed at the four corners of the bottom of the test tank 2. A drain pipe 21 is fixed at the bottom of the test tank 2, and a second valve 22 is provided on the drain pipe 21.

[0032] A control console 19 is provided on the right side of the test tank 2, and a pressurization component 20 is provided inside the control console 19. A gas supply pipe 15 is installed and fixed at the output end of the pressurization component 20. An air inlet 16 is fixed on the right side of the top of the tank cover 6. The top end of the gas supply pipe 15 is fixedly connected to the air inlet 16. A fixing plate 3 is welded and fixed at the bottom inside the test tank 2.

[0033] Working principle: When using this experimental device, the stator workpiece of the test motor is placed on the top of the fixing plate 3 inside the test tank 2. Then, the tank cover 6 is closed, and the test tank 2 and the tank cover 6 are connected and fixed using fixing nuts 17 and fixing bolts 18. When filling the test tank 2 with water, the water supply pipe 7 is connected to the external water supply pipe. Water is then injected into the test tank 2 and the tank cover 6 through the water supply pipe 7, connecting pipe 9, and water injection pipe 11. At the same time, a filter screen 27 is fixed inside the connecting ring 8 during the water injection process to help filter and remove some particulate impurities contained in the water source. After the test tank 2 is filled with water, the pressurization component 20 is started to pressurize. The pressure is increased to 1 MPa, 2 MPa, 3 MPa, and 4 MPa, and then held for 5 minutes each time. Then, the pressure is increased to the specified pressure. After the test is completed, the pressure is released, the tank cover 6 is opened, the sample is taken out, and it is placed under normal atmospheric conditions to recover naturally.

[0034] Meanwhile, when the test device is in use, a top cover 13 is fixed to the top of the tank cover 6 by a support rod 14. The top cover 13 can provide an auxiliary outer cover to protect the top of the test device from dust. When the test device is in use, side covers 23 are installed and fixed at the bottom of both sides of the test tank 2 by mounting bolts 30 and screw holes 31. The two sets of side covers 23 are symmetrically arranged to provide an auxiliary outer cover to protect the bottom of the test device from impact.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An alternating water pressure testing device, comprising a test tank (2), characterized in that: The test tank (2) is provided with a tank cover (6) at the top, and a water injection pipe (11) is fixed on the left side of the top of the tank cover (6). A first valve (10) is installed and fixed on the left side of the water injection pipe (11). A connecting pipe (9) is installed and fixed on the left side of the first valve (10). A connecting ring (8) is provided on the left side of the connecting pipe (9), and a water supply pipe (7) is provided on the left side of the connecting ring (8). A connecting flange (24) is welded and fixed on the right side of the outside of the water supply pipe (7) and the left side of the outside of the connecting pipe (9). A filter screen (27) is fixed inside the connecting ring (8). A sealing gasket (28) is provided on both sides of the connecting ring (8). A connecting bolt (25) is provided through the inside of the connecting flange (24). Threaded holes (26) that cooperate with the connecting bolt (25) are provided on both sides of the connecting ring (8).

2. The alternating hydrostatic testing device according to claim 1, characterized in that: The water supply pipe (7) is connected to the interior of the connecting pipe (9) via the connecting ring (8), and the connecting pipe (9) is connected to the interior of the water injection pipe (11).

3. The alternating hydrostatic testing device according to claim 1, characterized in that: The connecting flange (24) has four sets of equally spaced rings on one side of the sealing gasket (28), and the threaded holes (26) have four sets of equally spaced openings on both sides of the connecting ring (8).

4. The alternating hydrostatic testing device according to claim 1, characterized in that: The top of the can lid (6) is provided with a top cover (13), and support rods (14) are welded and fixed at the four corners of the top of the can lid (6). Hanging rings (12) are welded and fixed on both sides of the top of the can lid (6).

5. The alternating hydrostatic testing device according to claim 4, characterized in that: The top of the support rod (14) is welded and fixed to the top of the inside of the top cover (13), and the top of the lifting ring (12) penetrates the inside of the top of the top cover (13).

6. The alternating hydrostatic testing device according to claim 1, characterized in that: The test tank (2) has side covers (23) symmetrically arranged at the bottom of both sides, and three sets of mounting bolts (30) are equally spaced on the right side of the side cover (23). The mounting bolts (30) penetrate the interior of the side cover (23). Three sets of fixing feet (29) are welded and fixed on both sides of the test tank (2) at equal intervals. The right side of the fixing feet (29) has screw holes (31) that cooperate with the mounting bolts (30) for installation.

7. The alternating hydrostatic testing device according to claim 1, characterized in that: The test tank (2) is welded and fixed to the top of the outside with a lower connecting sleeve (4), and the tank cover (6) is welded and fixed to the bottom of the outside with an upper connecting sleeve (5). The bottom of the lower connecting sleeve (4) is provided with a fixing bolt (18), and the top of the fixing bolt (18) passes through the interior of the lower connecting sleeve (4) and the upper connecting sleeve (5) respectively and is rotatably connected with a fixing nut (17). The fixing bolt (18) is provided in multiple sets at equal intervals at the bottom of the lower connecting sleeve (4). The test tank (2) is welded and fixed to the four corners at the bottom of the test tank (2). The test tank (2) is fixed to the bottom with a drain pipe (21), and a second valve (22) is provided on the drain pipe (21).

8. The alternating hydrostatic testing device according to claim 1, characterized in that: The test tank (2) is provided with a control console (19) on the right side, and a pressurization component (20) is provided inside the control console (19). A gas supply pipe (15) is installed and fixed at the output end of the pressurization component (20). An air inlet (16) is fixed at the right side of the top of the tank cover (6). The top end of the gas supply pipe (15) is fixedly connected to the air inlet (16). A fixing plate (3) is welded and fixed at the bottom inside the test tank (2).

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