Strength testing device for flange production

Abstract

The utility model discloses a strength testing device for flange production, which comprises a base, a support frame, a pressing plate, a rubber pad and a limiting plate, the base is internally provided with a cavity, the support frame is fixedly connected to the middle of the upper part of the base, the rubber pad is fixedly connected to the center of the upper wall of the base, and the limiting plate is fixedly connected to the upper wall of the base. The pressing plate is movably connected between the supporting frame and the upper wall of the base through a pressing assembly, a testing assembly is installed on the upper wall of the pressing plate, and a positioning assembly is movably connected to the middle of the side wall of the limiting plate. The utility model belongs to the technical field of pressure detection equipment, and particularly relates to a strength testing device for flange production, which is used for testing the structural strength of a flange, preventing the surface of a part from being damaged in the testing process and increasing the comprehensiveness of flange detection.

Description

Technical Field

[0001] This utility model belongs to the technical field of pressure testing equipment, and in particular relates to a strength testing device for flange production. Background Technology

[0002] In the flange manufacturing process, strength testing is a crucial step in ensuring its safety and reliability. This includes tests on both structural and material aspects.

[0003] Existing strength testing equipment for flange production is mainly used for testing the external structural strength of flanges, such as torque and impact resistance. However, it is easy to damage the flange surface during testing, and it cannot test the internal structural strength and sealing performance of the flange, resulting in an incomplete structural inspection of the flange. Utility Model Content

[0004] The technical problem this invention aims to solve is to improve the structural strength testing of flanges, avoid damage to the surface of parts during the testing process, and increase the comprehensiveness of flange inspection.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a strength testing device for flange production, including a base with a hollow cavity inside, and further including a support frame, a pressure plate, a rubber pad, and a limiting plate. The support frame is fixedly connected to the upper middle part of the base, the rubber pad is fixedly connected to the center of the upper wall of the base, and the limiting plate is fixedly connected to the upper wall of the base and is symmetrically distributed on the left and right sides with the rubber pad as the center. The pressure plate is movably connected between the support frame and the upper wall of the base through a pressing component. A testing component is installed on the upper wall of the pressure plate, and a positioning component is movably connected to the middle of the side wall of the limiting plate.

[0006] Furthermore, the pressing assembly includes a cylinder, which is installed in the middle of the upper wall of the support frame. The telescopic end of the cylinder extends through the support frame to the upper wall of the base and is fixedly connected to the upper wall of the pressure plate.

[0007] Furthermore, the test assembly includes a sealing plate, a water pump, and a water supply pipe. The sealing plate is fixedly connected to the bottom wall of the pressure plate, the water pump is installed on the upper wall of the support frame, and the water supply pipe passes through the pressure plate and the sealing plate in sequence. An outlet pipe is connected between the water supply pipe and the outlet end of the water pump, and an inlet pipe is connected between the inlet end of the water pump and the inside of the base.

[0008] Furthermore, a pressure gauge is provided on the upper wall of the pressure plate, and the detection end of the pressure gauge passes through the sealing plate and is located at the lower end of the sealing plate.

[0009] Furthermore, the positioning component includes a second cylinder and a push plate. The second cylinder is installed in the middle of the outer wall of the limiting plate. The telescopic end of the second cylinder extends through the limiting plate to above the rubber pad. The push plate is fixedly connected to the telescopic end of the second cylinder.

[0010] Furthermore, the two ends of the symmetrical limiting plate are flared, and the upper wall of the base has a reflux port located between the limiting plate and the rubber pad.

[0011] After adopting the above structure, the beneficial effects of this utility model are as follows: For the structural strength test of the flange, the flange is pushed onto the rubber pad, and the positioning component is used to clamp and limit it. The pressure plate that moves up and down is pressed on the upper end of the flange to test the support strength of the flange end.

[0012] Meanwhile, both ends of the flange form a closed cavity with the pressure plate and the rubber gasket, respectively. Pressurized water is injected into the closed cavity, and the internal structural strength and sealing performance are tested by hydrostatic pressure inside the flange. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] Figure 1 This is a schematic diagram of the overall structure of the strength testing device for flange production proposed in this utility model.

[0015] Figure 2 This is a half-sectional view of the strength testing device for flange production proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the strength testing device for flange production proposed in this utility model.

[0017] Figure 4 for Figure 2 Enlarged view of part A;

[0018] Figure 5 for Figure 2 Enlarged view of part B.

[0019] In the attached diagram: 1. Base, 2. Support frame, 3. Pressure plate, 4. Rubber pad, 5. Limiting plate, 6. Test assembly, 7. Positioning assembly, 8. Cylinder 1, 9. Sealing plate, 10. Water pump, 11. Water supply pipe, 12. Water outlet pipe, 13. Water inlet pipe, 14. Pressure gauge, 15. Cylinder 2, 16. Push plate, 17. Return port, 18. Pressing assembly. Detailed Implementation

[0020] like Figure 1-5As shown, a strength testing device for flange production includes a base 1 with a hollow interior, a support frame 2, a pressure plate 3, a rubber pad 4, and a limiting plate 5. The support frame 2 is fixedly connected to the upper middle part of the base 1. The rubber pad 4 is fixedly connected to the center of the upper wall of the base 1. The limiting plate 5 is fixedly connected to the upper wall of the base 1 and is symmetrically distributed around the rubber pad 4. The pressure plate 3 is movably connected between the support frame 2 and the upper wall of the base 1 via a pressing assembly 18. A testing assembly 6 is installed on the upper wall of the pressure plate 3. A positioning assembly 7 is movably connected to the middle of the side wall of the limiting plate 5. The two ends of the symmetrical limiting plate 5 are flared. A return port 1 is opened on the upper wall of the base 1. 7. The flange is located between the limiting plate 5 and the rubber pad 4. Water is filled into the base 1. The flange is pushed between the symmetrical limiting plates 5 and is located on the rubber pad 4. The positioning component 7 clamps and limits it. The pressing component 18 pushes the pressure plate 3 down to press it on the upper end of the flange to test the support strength of the flange end. At the same time, the testing component 6 introduces pressurized water into the flange to increase the internal pressure of the flange. The pressure gauge 14 is observed to make the internal pressure of the flange reach 1.5 times the design pressure and maintain the pressure for 20 minutes to achieve the internal sealing performance and internal structural strength test of the flange. The leaked water can flow into the base 1 for recycling through the return ports 17 on both sides of the rubber pad 4.

[0021] like Figure 1 , Figure 2 and Figure 5 As shown, in order to improve the detection stability of the flange, the positioning assembly 7 includes a second cylinder 15 and a push plate 16. The second cylinder 15 is installed in the middle of the outer wall of the limiting plate 5. The telescopic end of the second cylinder 15 extends through the limiting plate 5 to the top of the rubber pad 4. The push plate 16 is fixedly connected to the telescopic end of the second cylinder 15. By driving the telescopic end of the second cylinder 15 to extend, the push plate 16 is close to the outer circumference of the flange, so that the flange is stably placed on the rubber pad 4, thereby realizing the positioning of the flange.

[0022] like Figure 2-4 As shown, in order to achieve the support strength test of the flange end and further improve the placement stability of the flange, the pressing assembly 18 includes a cylinder 8. The cylinder 8 is installed in the middle of the upper wall of the support frame 2. The telescopic end of the cylinder 8 extends through the support frame 2 to the upper wall of the base 1 and is fixedly connected to the upper wall of the pressure plate 3. When the telescopic end of the cylinder 8 is driven to extend, the pressure plate 3 drives the detection assembly to move down and fasten it to the upper end of the flange. The pressure plate 3 and the sealing gasket form a closed cavity inside the flange, which facilitates the injection of pressurized water into the detection assembly.

[0023] like Figure 3 and Figure 4As shown, to test the internal structural strength and sealing performance of the flange, the test assembly 6 includes a sealing plate 9, a water pump 10, and a water supply pipe 11. The sealing plate 9 is fixedly connected to the bottom wall of the pressure plate 3. The water pump 10 is installed on the upper wall of the support frame 2. The water supply pipe 11 passes through the pressure plate 3 and the sealing plate 9 in sequence. An outlet pipe 12 is connected between the water supply pipe 11 and the outlet end of the water pump 10. An inlet pipe 13 is connected between the inlet end of the water pump 10 and the inside of the base 1. A pressure gauge 14 is installed on the upper wall of the pressure plate 3. The detection end of the pressure gauge 14 passes through the sealing plate. Plate 9 is located at the lower end of sealing plate 9. Pressure plate 3 contacts the upper end of flange through sealing plate 9 to increase the sealing performance of closed cavity. Water pump 10 draws water from base 1 through water inlet pipe 13 and sends it into closed cavity inside flange through water inlet pipe 13 and water supply pipe 11. As pressurized water is injected, observe pressure gauge 14 to make the internal pressure of flange reach 1.5 times the design pressure and maintain the pressure for 20 minutes. At the same time, observe whether there is water leakage on the outside and bottom of flange to realize the internal sealing performance and internal structural strength test of flange.

[0024] In practical use, the operator pushes the flange onto the rubber pad 4 and positions it between the symmetrical limiting plates 5. The extension end of the second driving cylinder 15 extends, so that the symmetrical push plates 16 clamp the outer circumference of the flange from opposite directions, thereby limiting the flange. At the same time, the first driving cylinder 8 extends, and the pressure plate 3 drives the detection component to move down and fasten it to the upper end of the flange. The pressure plate 3 and the sealing gasket form a closed cavity inside the flange.

[0025] During testing, water pump 10 draws water from base 1 through inlet pipe 13 and sends it into the closed cavity inside the flange through inlet pipe 13 and water supply pipe 11. As pressurized water is injected, pressure gauge 14 is observed to ensure that the internal pressure of the flange reaches 1.5 times the design pressure and is maintained for 20 minutes. Pressure gauge 14 is a Y-60 model medium and high pressure test pressure gauge with a range of 0-40MPa. At the same time, it is observed whether there is water leakage on the outside and bottom of the flange, thus realizing the testing of the internal sealing performance and internal structural strength of the flange.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A strength testing device for flange production, comprising a base (1), wherein the base (1) has a hollow interior, characterized in that: It also includes a support frame (2), a pressure plate (3), a rubber pad (4), and a limiting plate (5). The support frame (2) is fixedly connected to the upper middle part of the base (1). The rubber pad (4) is fixedly connected to the center of the upper wall of the base (1). The limiting plate (5) is fixedly connected to the upper wall of the base (1) and is symmetrically distributed on the left and right sides with the rubber pad (4) as the center. The pressure plate (3) is movably connected between the support frame (2) and the upper wall of the base (1) through a pressing component (18). A test component (6) is installed on the upper wall of the pressure plate (3). A positioning component (7) is movably connected to the middle of the side wall of the limiting plate (5).

2. The strength testing device for flange production according to claim 1, characterized in that: The pressing assembly (18) includes a cylinder (8), which is installed in the middle of the upper wall of the support frame (2). The telescopic end of the cylinder (8) extends through the support frame (2) to the upper wall of the base (1) and is fixedly connected to the upper wall of the pressure plate (3).

3. The strength testing device for flange production according to claim 1, characterized in that: The test assembly (6) includes a sealing plate (9), a water pump (10), and a water supply pipe (11). The sealing plate (9) is fixedly connected to the bottom wall of the pressure plate (3). The water pump (10) is installed on the upper wall of the support frame (2). The water supply pipe (11) passes through the pressure plate (3) and the sealing plate (9) in sequence. A water outlet pipe (12) is connected between the water supply pipe (11) and the water outlet end of the water pump (10). A water inlet pipe (13) is connected between the water inlet end of the water pump (10) and the inside of the base (1).

4. The strength testing device for flange production according to claim 3, characterized in that: The upper wall of the pressure plate (3) is provided with a pressure gauge (14), the detection end of the pressure gauge (14) passes through the sealing plate (9) and is located at the lower end of the sealing plate (9).

5. The strength testing device for flange production according to claim 1, characterized in that: The positioning component (7) includes a second cylinder (15) and a push plate (16). The second cylinder (15) is installed in the middle of the outer wall of the limiting plate (5). The telescopic end of the second cylinder (15) extends through the limiting plate (5) to the top of the rubber pad (4). The push plate (16) is fixedly connected to the telescopic end of the second cylinder (15).

6. The strength testing device for flange production according to claim 1, characterized in that: The two ends of the symmetrical limiting plate (5) are flared, and the upper wall of the base (1) has a return port (17) located between the limiting plate (5) and the rubber pad (4).

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