An industrial equipment interface pipe sealing test device

Abstract

This utility model relates to an industrial equipment interface pipe sealing performance testing device. It includes a base plate supported by a frame, a top plate above the base plate, connecting columns between the four corners of the top and base plates, a support frame mounted on the top plate with an upper sealing device, a window on the top plate with an inflation detection device below the window, a support plate at the front of the top plate, and a multi-station loading and shifting device mounted on the support plate. The multi-station loading and shifting device includes a shifting bracket with multiple support seats, each support seat having a detachable loading connector for loading the interface pipe, and a quick clamp for fixing the interface pipe on the loading connector. It also includes a shifting drive assembly for driving the shifting bracket to move laterally. This utility model can load multiple interface pipes simultaneously and perform sealing performance testing on each one, improving testing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and in particular relates to a testing device for the sealing performance of interface pipes in industrial equipment. Background Technology

[0002] Industrial equipment connector pipes are a type of connecting component used in industrial equipment piping systems. They connect two adjacent pipes, and therefore, the sealing performance of these connector pipes has a significant impact on the overall sealing performance of the industrial equipment piping, as well as the stability and reliability of the equipment's operation. After processing and assembly, and before leaving the factory, connector pipes undergo a sealing test to ensure that the main body of the connector pipe is sealed and leak-free.

[0003] Existing technologies use sealing testing devices to test the sealing performance of interface pipes. However, this is typically a single-station approach. During sealing testing, a single interface pipe is loaded onto the testing fixture, both ports are sealed, and pressure is maintained. The presence of a sealing problem is determined by detecting a pressure drop during this pressure-holding process. The aforementioned testing equipment has low sealing testing efficiency, necessitating the development and design of novel interface pipe sealing testing equipment to improve efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an industrial equipment interface pipe sealing performance testing device to improve the efficiency of interface pipe sealing performance testing.

[0005] The technical solution adopted by this utility model is as follows: an industrial equipment interface pipe sealing test device, including a base plate supported by a frame, a top plate above the base plate, connecting columns between the four corners of the top plate and the base plate, a support frame installed on the top plate and an upper sealing device installed on the support frame, a window on the top plate and an inflation test device below the window, a support plate installed at the front of the top plate, a multi-station loading and shifting device installed on the support plate, the multi-station loading and shifting device including a shifting bracket, multiple support seats on the shifting bracket, a detachable loading connection seat for loading interface pipes installed on each support seat, a quick clamp for fixing the interface pipes installed on the loading connection seat, and a shifting drive assembly for driving the shifting bracket to shift laterally. When the shifting bracket is parked at the test position, one of the interface pipes is located between the upper sealing device and the inflation test device.

[0006] Preferably, the displacement drive assembly includes a horizontally positioned displacement hydraulic cylinder located at the front of the support plate. The displacement hydraulic cylinder is mounted and fixed on the support plate using a fixed seat, and the back of the displacement bracket is fixedly connected to the end of the piston rod of the displacement hydraulic cylinder.

[0007] Preferably, the upper sealing device includes an upper hydraulic cylinder mounted and fixed on a support frame, a lifting seat installed at the lower end of the piston rod of the upper hydraulic cylinder, and an upper sealing plug installed at the bottom of the lifting seat.

[0008] Preferably, the inflation detection device includes a housing, a lower connecting plug located in the middle of the top of the housing and inside a window in the top plate, a support pipe installed at the bottom of the housing, an air inlet pipe installed on the side wall of the support pipe and connected to the inflation and pressure holding device, and a lifting drive assembly.

[0009] Preferably, the lifting drive assembly includes a base plate located below the bottom plate, a support column between the top plate and the base plate, a lower hydraulic cylinder installed at the bottom of the base plate, a lifting base fixedly connected to the upper end of the piston rod of the lower hydraulic cylinder, the lower end of the support pipe and the air inlet pipe fixedly installed on the lifting base, and a lifting guide assembly.

[0010] Preferably, the lifting guide assembly includes a guide rod disposed between the top plate and the base plate, and guide sleeves are provided at corresponding positions on the lifting base, with each guide sleeve located on a respective guide rod.

[0011] Preferably, a protective net is installed between the four edges of the top plate and the bottom plate, and a protective net is installed below the four edges of the bottom plate and on the outside of the frame.

[0012] The advantages and positive effects of this utility model are:

[0013] This invention provides an industrial equipment interface pipe sealing performance testing device. Compared with existing sealing performance testing devices, this invention features a multi-station loading and shifting device, which can simultaneously load multiple interface pipe workpieces and perform sealing performance testing on each one. Compared with single-station testing devices that require frequent loading and unloading of interface pipe workpieces, this testing device reduces the operation time required for frequent loading and unloading of workpieces by loading multiple interface pipe workpieces at once, completing the testing on each one, and then unloading them together, thereby improving the operational efficiency of interface pipe sealing performance testing. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the present invention, viewed from above;

[0015] Figure 2 yes Figure 1 A three-dimensional structural diagram of the middle support and upper enclosure device;

[0016] Figure 3 yes Figure 1 A three-dimensional structural diagram of the loading and shifting device;

[0017] Figure 4 yes Figure 1 A three-dimensional structural diagram of the inflation detection device, viewed from above;

[0018] Figure 5 yes Figure 1 A three-dimensional structural diagram of the inflation detection device, viewed from below.

[0019] In the picture:

[0020] 1. Frame; 2. Inflation detection device; 2-1. Lower hydraulic cylinder; 2-2. Air inlet pipe; 2-3. Lower connecting plug; 2-4. Housing; 2-5. Guide rod; 2-6. Support pipe; 2-7. Lifting base; 2-8. Guide sleeve; 3. Protective net; 4. Upper sealing device; 4-1. Upper hydraulic cylinder; 4-2. Lifting seat; 4-3. Upper sealing plug; 5. Multi-station loading and shifting device; 5-1. Fixed seat; 5-2. Shifting hydraulic cylinder; 5-3. Support seat; 5-4. Quick clamp; 5-5. Loading connecting seat; 5-6. Shifting bracket; 6. Support frame; 7. Support plate; 8. Top plate; 9. Bottom plate; 10. Connecting column; 11. Support column; 12. Base plate. Detailed Implementation

[0021] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0022] Please see Figure 1 The industrial equipment interface pipe sealing test equipment of this utility model includes a base plate 9 supported by a frame 1, a top plate 8 above the base plate, and connecting columns 10 between the four corners of the top plate 8 and the base plate 9.

[0023] A support frame 6 is installed on the top plate 8, and an upper sealing device 4 is installed on the support frame 6. A window is provided on the top plate 8, and an inflation detection device 2 is provided below the window. A support plate 7 is also installed at the front of the top plate 8, and a multi-station loading and shifting device 5 is installed on the support plate 7. The detection principle is as follows: The interface tube workpiece loaded on the multi-station loading and shifting device 5 is located between the upper sealing device 4 and the inflation detection device 2. When the detection operation is started, the upper sealing device 4 seals the upper port of the interface tube workpiece, the inflation detection device 2 moves upward and connects to the lower port of the interface tube workpiece, and the inflation and pressure holding device connected to the inflation detection device 2 injects compressed air and raises the internal pressure to the set value. Then, the pressure holding stage is entered. The presence of sealing defects in the interface tube workpiece is determined by detecting the pressure drop change during the pressure holding stage.

[0024] Please see Figure 3 It can be seen that:

[0025] The multi-station loading and shifting device 5 includes a shifting bracket 5-6, on which multiple support seats 5-3 are provided. Each support seat 5-3 is equipped with a detachable loading connector 5-5 for loading interface tubes. A quick clamp 5-4 for fixing the interface tubes is also installed on the loading connector 5-5. It also includes a shifting drive assembly for driving the shifting bracket 5-6 to shift laterally. When the shifting bracket is parked at the detection position, one of the interface tubes is located between the upper sealing device 4 and the inflation detection device 2.

[0026] The loading connector 5-5 has an insert groove that matches the outer contour of the interface tube workpiece. The interface tube workpiece is embedded in the insert groove with its upper end facing upwards and its lower end facing downwards. Then, the quick clamp 5-4 is used to apply clamping force to the loaded interface tube workpiece to prevent it from shaking or falling off during subsequent sealing tests. The purpose of detachably connecting the loading connector 5-5 to the support 5-3 is that different interface tube workpieces have different outer contours, and when a changeover test is required, the loading connector 5-5 needs to be disassembled and replaced accordingly.

[0027] In this embodiment, the displacement drive assembly includes a horizontally positioned displacement hydraulic cylinder 5-2 located at the front of the support plate 7. The displacement hydraulic cylinder 5-2 is mounted and fixed on the support plate 7 using a fixed base 5-1. The back of the displacement bracket 5-6 is fixedly connected to the end of the piston rod of the displacement hydraulic cylinder 5-2. Figure 2 As shown, the displacement hydraulic cylinder 5-2 is provided with two cylinders, one above the other, that move synchronously to ensure the stability of the displacement bracket 5-6 and its auxiliary components when they are moved horizontally.

[0028] Please see Figure 2 It can be seen that:

[0029] The upper sealing device 4 includes an upper hydraulic cylinder 4-1 mounted and fixed on the support frame 6. A lifting seat 4-2 is installed at the lower end of the piston rod of the upper hydraulic cylinder 4-1. An upper sealing plug 4-3 is installed at the bottom of the lifting seat 4-2. After the upper sealing plug 4-3 descends, it presses and seals the upper port of the interface tube workpiece. The upper sealing plug 4-3 is a rubber block. When it is pressed on the upper port of the interface tube workpiece, it seals the upper port by means of elastic deformation.

[0030] Please see Figure 4 and Figure 5 It can be seen that:

[0031] The inflation testing device 2 includes a housing 2-4. A lower connecting plug 2-3 is located at the top center of the housing 2-4, within a window in the top plate 8. A support pipe 2-6 is installed at the bottom of the housing 2-4. An air inlet pipe 2-2 is installed on the side wall of the support pipe 2-6, connecting to the inflation and pressure-holding device. The device also includes a lifting drive assembly. During testing, the lifting drive assembly drives the aforementioned air inlet pipe 2-2, support pipe 2-6, housing 2-4, and lower connecting plug 2-3 to rise. The lower connecting plug 2-3 presses against the lower port of the interface tube workpiece. The lower connecting plug 2-3 is a rubber block; when pressed against the lower port of the interface tube workpiece, it seals the lower port through elastic deformation. Simultaneously, a metal air pipe is located at the center of the lower connecting plug 2-3, connecting to the inner cavity of the interface tube while sealing the lower port.

[0032] The lifting drive assembly includes a base plate 12 located below the base plate 8, a support column 11 between the top plate 8 and the base plate 12, a lower hydraulic cylinder 2-1 installed at the bottom of the base plate 12, a lifting base 2-7 fixedly connected to the upper end of the piston rod of the lower hydraulic cylinder 2-1, the lower end of the support pipe 2-6 and the air inlet pipe 2-2 fixedly installed on the lifting base 2-7, and a lifting guide assembly.

[0033] In this embodiment, the lifting guide assembly includes a guide rod 2-5 disposed between the top plate 8 and the base plate 12, and a guide sleeve 2-8 disposed at a corresponding position on the lifting base 2-7. Each guide sleeve 2-8 is located on each guide rod 2-5. Through the cooperation of the guide rod 2-5 and the guide sleeve 2-8, the stability of the lifting base 2-7 and its auxiliary components during lifting and lowering is improved.

[0034] As shown in the figure, a window is provided in the middle of the base plate 9, and the center of the inflation detection device 2 is located inside this window. A protective net 3 is installed between the four edges of the top plate 8 and the base plate 9, and a protective net 3 is installed below the four edges of the base plate 9 and on the outside of the frame 1. Figure 1 Only the protective net 3 located at the front of the frame 1 is shown in the drawing. The purpose of the protective net 3 is to prevent the operator's limbs from entering the internal working space of this sealing detection device, thereby improving safety.

[0035] Testing process:

[0036] The piston rod of the displacement hydraulic cylinder 5-2 extends to the initial position. At this time, the first loading connector 5-5 on the left end moves to the lower end of the upper sealing plug 4-3. Then, the inspection operator loads multiple interface tube workpieces one by one onto each loading connector 5-5 and clamps them with their respective quick clamps 5-4.

[0037] After the test is started, the piston rod of the upper hydraulic cylinder 4-1 of the upper sealing device 4 extends downward, and the upper sealing plug 4-3 presses against the upper port of the interface pipe workpiece and seals the upper port. The piston rod of the lower hydraulic cylinder 2-1 of the inflation detection device 2 extends upward, and the lower connecting plug 2-3 presses against the lower port of the interface pipe workpiece. The inflation and pressure holding device injects compressed air into the device through the air inlet pipe 2-2 to raise the internal pressure to the set value, and then enters the pressure holding stage. During the pressure holding stage, the pressure drop of the internal pressure is detected, and the pressure drop is used to determine the pressure when the device is ready to operate. Check for sealing defects in the front interface tube workpiece; after the front interface tube workpiece is inspected, the upper sealing device 4 and the inflation detection device 2 operate synchronously and disconnect from the interface tube workpiece. Then, the piston rod of the displacement hydraulic cylinder 5-2 moves one station distance, and the second loading connection seat 5-5 and its interface tube workpiece move to the bottom of the upper sealing plug 4-3. Repeat the above operation to complete the sealing inspection of all interface tube workpieces one by one. After the last interface tube workpiece is inspected, the inspection operator unloads all interface tube workpieces.

Claims

1. An industrial equipment interface pipe tightness detection device, characterized by: The system includes a base plate (9) supported by a frame (1), a top plate (8) above the base plate (9), connecting columns (10) between the four corners of the top plate (8) and the base plate (9), a support frame (6) installed on the top plate (8) and an upper enclosure device (4) installed on the support frame (6), a window on the top plate (8) and an inflation detection device (2) below the window, a support plate (7) installed at the front of the top plate (8), and a multi-station loading and shifting device (5) installed on the support plate (7). The device (5) includes a shift bracket (5-6), on which multiple support seats (5-3) are provided. Each support seat (5-3) is equipped with a detachable loading connector (5-5) for loading the interface tube. A quick clamp (5-4) for fixing the interface tube is also installed on the loading connector (5-5). The device also includes a shift drive assembly for driving the shift bracket (5-6) to shift laterally. When the shift bracket (5-6) is parked in the detection position, one of the interface tubes is located between the upper sealing device (4) and the inflation detection device (2).

2. The industrial equipment interface pipe tightness detection apparatus according to claim 1, characterized by: The displacement drive assembly includes a horizontally positioned displacement hydraulic cylinder (5-2) located at the front of the support plate (7). The displacement hydraulic cylinder (5-2) is mounted and fixed on the support plate (7) using a fixed base (5-1). The back of the displacement bracket (5-6) is fixedly connected to the end of the piston rod of the displacement hydraulic cylinder (5-2).

3. The industrial equipment interface pipe tightness detection apparatus according to claim 2, characterized by: The upper sealing device (4) includes an upper hydraulic cylinder (4-1) mounted and fixed on a support frame (6), a lifting seat (4-2) is installed at the lower end of the piston rod of the upper hydraulic cylinder (4-1), and an upper sealing plug (4-3) is installed at the bottom of the lifting seat (4-2).

4. The industrial equipment interface pipe tightness detection apparatus according to claim 3, characterized by: The inflation detection device (2) includes a housing (2-4), a lower connecting plug (2-3) is provided at the top center of the housing (2-4) and the lower connecting plug (2-3) is located in the window of the top plate (8), a support pipe (2-6) is installed at the bottom of the housing (2-4), an air inlet pipe (2-2) is installed on the side wall of the support pipe (2-6), the air inlet pipe (2-2) is connected to the inflation and pressure holding device, and also includes a lifting drive assembly.

5. The industrial equipment interface pipe tightness detection apparatus according to claim 4, characterized by: The lifting drive assembly includes a base plate (12) located below the base plate (9), a support column (11) between the top plate (8) and the base plate (12), a lower hydraulic cylinder (2-1) installed at the bottom of the base plate (12), a lifting base (2-7) and the upper end of the piston rod of the lower hydraulic cylinder (2-1) are fixedly connected, the lower end of the support pipe (2-6) and the air inlet pipe (2-2) are installed and fixed on the lifting base (2-7), and a lifting guide assembly is also included.

6. The industrial equipment interface pipe tightness detection apparatus according to claim 5, characterized by: The lifting guide assembly includes a guide rod (2-5) disposed between the top plate (8) and the base plate (12), and a guide sleeve (2-8) provided at a corresponding position on the lifting base (2-7), with each guide sleeve (2-8) located on each guide rod (2-5).

7. The industrial equipment interface pipe leak detection apparatus of any one of claims 1 to 6, wherein: A protective net (3) is installed between the four edges of the top plate (8) and the bottom plate (9), and a protective net (3) is installed below the four edges of the bottom plate (9) and on the outside of the frame (1).

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