Mechanical sealing element testing device with wide application range

Abstract

The utility model discloses a mechanical sealing element testing device with a wide application range, which relates to the technical field of mechanical engineering and comprises a mechanical sealing element testing device body, and an extrusion assembly is arranged above the mechanical sealing element testing device body. The extrusion assembly comprises two extrusion rods arranged above the mechanical sealing element testing device body, the two extrusion rods are hinged to each other, the extrusion rods are rotatably connected with connecting plates, a rotating rod is rotatably connected between the two connecting plates, and a fixing plate is installed on the outer wall of the rotating rod; according to the utility model, one extrusion rod is pushed to enable the two extrusion rods to be close to each other, so that the connecting plate and the rotating rod are driven to move downwards, the fixed plate and the extrusion plate are enabled to extrude the mechanical sealing element downwards, and meanwhile, the close mechanical sealing element testing device body extrudes the two sides of the mechanical sealing element; extrusion in three directions can be achieved through one driving force, and multi-direction pressure testing can be conveniently conducted on the mechanical sealing piece.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a mechanical seal testing device with a wide range of applications. Background Art

[0002] Mechanical seals are key components used to prevent leakage of working media. They are widely used in pumps, reaction reactors, turbine compressors, submersible motors and other equipment. Due to their important sealing functions, the performance of mechanical seals is directly related to the normal operation and working efficiency of the equipment. Therefore, it is necessary to test mechanical seals using test equipment.

[0003] In real applications, mechanical seals often need to withstand pressure in multiple directions, but existing testing devices can only simulate pressure in a single direction. This limits the accuracy and comprehensiveness of the test results. Because pressure testing in a single direction cannot fully simulate the complex pressure distribution in the actual working environment, it may not be possible to accurately evaluate the performance of mechanical seals in actual applications. Utility Model Content

[0004] The purpose of the utility model is to provide a mechanical seal testing device with a wide range of applications, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides a mechanical seal testing device with a wide range of applications, including a mechanical seal testing device body, an extrusion assembly is arranged above the mechanical seal testing device body, and the extrusion assembly includes two extrusion rods arranged above the mechanical seal testing device body, the two extrusion rods are hinged, the extrusion rods are rotatably connected to a connecting plate, a rotating rod is rotatably connected between the two connecting plates, the outer wall of the rotating rod is installed with a fixed plate, and the bottom of the fixed plate is installed with an extrusion plate.

[0006] Furthermore, an extension pressing plate is provided on both sides of the extrusion rod, the outer wall of the extension pressing plate is connected to the outer wall of the extrusion rod, and a plurality of the extension pressing plates correspond to each other.

[0007] Furthermore, the extrusion rod is provided with a through slot, a rotating shaft is installed on the inner wall of the through slot, and one end of the connecting plate away from the rotating rod extends to the inside of the through slot and is rotatably connected to the outer wall of the rotating shaft.

[0008] Furthermore, a slide groove is provided on the top of the main body of the mechanical seal testing device, circular support plates are provided on both sides of the extrusion rod, an insertion rod is installed between the two circular support plates, the extrusion rod is rotatably connected to the outer wall of the insertion rod, the circular support plate is located inside the slide groove and the outer wall of the circular support plate is slidably connected to the inner wall of the slide groove.

[0009] Furthermore, a servo motor is installed on the inner bottom wall of the slide slot, a gear is connected to the driving end of the servo motor, a fixing block is installed at one end of the two insertion rods, and a rack meshing with the gear is installed on the outer wall of the fixing block.

[0010] Furthermore, two support rods are installed on the inner bottom wall of the slide groove, a storage tray is connected between the two support rods, and the storage tray is installed on the top of the support rods.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, pushing one extrusion rod will bring the two extrusion rods closer together, thereby driving the connecting plate and the rotating rod to move downward, and then causing the fixed plate and the extrusion plate to squeeze the mechanical seal downward. At the same time, the mechanical seal test device body that is brought closer together squeezes the two sides of the mechanical seal. Extrusion in three directions can be achieved through one driving force, which is convenient for multi-directional pressure testing of the mechanical seal.

[0013] 2. In the utility model, when the servo motor drives the gear to rotate, the rack drives the insertion rod and the extrusion rod to move through the fixed block, so that the two extrusion rods are brought together at the same time, avoiding the risk of deviation of the extrusion rods. Only one driving device is required to achieve extrusion in three directions, which also effectively reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the through slot and the rotating shaft in the utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the gear and the servo motor in the utility model;

[0017] Figure 4 for Figure 1 A magnified view of the structure at center.

[0018] In the figure: 1. Mechanical seal test device body;

[0019] 2. Extrusion assembly; 201. Extrusion rod; 202. Connecting plate; 203. Rotating rod; 204. Fixing plate; 205. Extrusion plate;

[0020] 3. Extension plate; 4. Insertion rod; 5. Circular support plate; 6. Slide groove; 7. Fixed block; 8. Rack; 9. Storage tray; 10. Support rod; 11. Gear; 12. Servo motor; 13. Through groove; 14. Rotating shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] Embodiment 1:

[0024] See also Figure 1-Figure 4 A mechanical seal testing device with a wide range of applications includes a mechanical seal testing device body 1, an extrusion assembly 2 is arranged above the mechanical seal testing device body 1, the extrusion assembly 2 includes two extrusion rods 201 arranged above the mechanical seal testing device body 1, the two extrusion rods 201 are hinged, the extrusion rods 201 are rotatably connected to a connecting plate 202, a rotating rod 203 is rotatably connected between the two connecting plates 202, a fixing plate 204 is fixedly installed on the outer wall of the rotating rod 203, the fixing plate 204 is located between the two connecting plates 202, and an extrusion plate 205 is fixedly installed on the bottom of the fixing plate 204.

[0025] Pushing one of the extrusion rods 201 to move will bring the two extrusion rods 201 closer together. When the two extrusion rods 201 are relatively close together, they will push one end of the connecting plate 202. When one end of the connecting plate 202 is pushed, the end of the connecting plate 202 away from the extrusion rod 201 will drive the rotating rod 203 to move downward together.

[0026] The rotating rod 203 drives the fixed plate 204 and the extrusion plate 205 to move downward. The downward moving extrusion plate 205 will squeeze the top of the mechanical seal below the extrusion plate 205, and the two approaching extrusion rods 201 will squeeze the two sides of the mechanical seal. Only one driving force is needed to achieve extrusion in three directions, which is convenient for pressure testing of multiple locations of the mechanical seal.

[0027] See also Figure 4 An extended pressing plate 3 is provided on both sides of the extrusion rod 201, and the outer wall of the extended pressing plate 3 is fixedly connected to the outer wall of the extrusion rod 201, and multiple extended pressing plates 3 correspond to each other.

[0028] The extended pressure plate 3 enlarges the contact area between the extrusion rod 201 and the mechanical seal. When some wider mechanical seals need to be pressure tested and the area of ​​the extrusion rod 201 is insufficient, the extended pressure plate 3 can be used to contact and squeeze the mechanical seal, thereby increasing the range of testing mechanical seals of different sizes.

[0029] See also Figure 2 The extrusion rod 201 is provided with a through slot 13 , and a rotating shaft 14 is fixedly mounted on the inner wall of the through slot 13 . One end of the connecting plate 202 away from the rotating rod 203 extends to the inside of the through slot 13 and is rotatably connected to the outer wall of the rotating shaft 14 .

[0030] The through slot 13 provides a swinging space for the connecting plate 202 , and at the same time, the through slot 13 fixes the outer wall of the rotating shaft 14 , so that one end of the connecting plate 202 can rotate along the outer wall of the rotating shaft 14 .

[0031] See also Figure 4 A slide groove 6 is provided on the top of the main body 1 of the mechanical seal testing device, and circular support plates 5 are provided on both sides of the extrusion rod 201. An insertion rod 4 is fixedly installed between the two circular support plates 5. The extrusion rod 201 is rotatably connected to the outer wall of the insertion rod 4. The circular support plate 5 is located inside the slide groove 6 and the outer wall of the circular support plate 5 is slidably connected to the inner wall of the slide groove 6.

[0032] While the slide groove 6 provides a moving direction for the slide groove 6, the circular support plate 5 is tightly attached to the inner wall of the slide groove 6, so the circular support plate 5 is stuck in the slide groove 6 to prevent the extrusion rod 201 from tipping over. The circular support plate 5 is connected to the extrusion rod 201 through the insertion rod 4, which makes it convenient for the circular support plate 5 to move with the extrusion rod 201 when the extrusion rod 201 moves. At the same time, the connection between the circular support plate 5 and the slide groove 6 also makes the extrusion rod 201 more stable.

[0033] Embodiment 2:

[0034] See also Figure 3-Figure 4 A servo motor 12 is fixedly installed on the inner bottom wall of the slide 6, and the driving end of the servo motor 12 is connected to a gear 11. A fixed block 7 is fixedly installed at one end of the two insertion rods 4, and a rack 8 meshing with the gear 11 is fixedly installed on the outer wall of the fixed block 7. The two racks 8 are respectively located on both sides of the gear 11.

[0035] The servo motor 12 drives the gear 11 to rotate, and the rotating gear 11 will drive the two racks 8 to move toward or away from each other. When the gear 11 rotates clockwise, it will drive the two racks 8 to move toward each other, and then the rack 8 drives the insertion rod 4 and the bottom end of the extrusion rod 201 to move through the fixed block 7, so that the two extrusion rods 201 are brought together at the same time, effectively avoiding the risk of the two extrusion rods 201 being offset when only one of the extrusion rods 201 is moved. At the same time, only one driving device is needed for simultaneous extrusion in three directions, which also greatly reduces energy consumption.

[0036] See also Figure 3-Figure 4 Two support rods 10 are fixedly installed on the inner bottom wall of the slide groove 6, and a storage tray 9 is fixedly connected between the two support rods 10, and the storage tray 9 is fixedly installed on the top of the support rods 10.

[0037] The support rod 10 is used to fix the placement tray 9 above the gear 11. The placement tray 9 is used to support the mechanical seal, so that the mechanical seal to be tested can be placed on the top of the placement tray 9 to facilitate the extrusion assembly 2 to squeeze it. The support rod 10 keeps the placement tray 9 away from the gear 11 to prevent the rotating gear 11 from being affected by the placement tray 9. A gap is left between the support rod 10 and the gear 11, so the support rod 10 will not affect the rotation of the gear 11.

[0038] Working principle:

[0039] Pushing one of the extrusion rods 201 to move will bring the two extrusion rods 201 closer together. When the two extrusion rods 201 are relatively close together, they will push one end of the connecting plate 202. When one end of the connecting plate 202 is pushed, the end of the connecting plate 202 away from the extrusion rod 201 will drive the rotating rod 203 to move downward together.

[0040] The rotating rod 203 drives the fixed plate 204 and the extrusion plate 205 to move downward. The downward moving extrusion plate 205 will squeeze the top of the mechanical seal below the extrusion plate 205, and the two approaching extrusion rods 201 will squeeze the two sides of the mechanical seal. Only one driving force is needed to achieve extrusion in three directions, which is convenient for pressure testing of multiple locations of the mechanical seal.

[0041] The servo motor 12 drives the gear 11 to rotate, and the rotating gear 11 will drive the two racks 8 to move toward or away from each other. When the gear 11 rotates clockwise, it will drive the two racks 8 to move toward each other, and then the rack 8 drives the insertion rod 4 and the bottom end of the extrusion rod 201 to move through the fixed block 7, so that the two extrusion rods 201 are brought together at the same time, effectively avoiding the risk of the two extrusion rods 201 being offset when only one of the extrusion rods 201 is moved. At the same time, only one driving device is needed for simultaneous extrusion in three directions, which also greatly reduces energy consumption.

Claims

1. A mechanical seal testing device with a wide range of applications, comprising a mechanical seal testing device body (1), characterized in that: An extrusion assembly (2) is arranged above the main body (1) of the mechanical seal test device. The extrusion assembly (2) comprises two extrusion rods (201) arranged above the main body (1) of the mechanical seal test device. The two extrusion rods (201) are hinged to each other. The extrusion rods (201) are rotatably connected to a connecting plate (202). A rotating rod (203) is rotatably connected between the two connecting plates (202). A fixing plate (204) is installed on the outer wall of the rotating rod (203). An extrusion plate (205) is installed on the bottom of the fixing plate (204).

2. A mechanical seal testing device with a wide range of applications as claimed in claim 1, characterized in that: An extension pressing plate (3) is provided on both sides of the extrusion rod (201), the outer wall of the extension pressing plate (3) is connected to the outer wall of the extrusion rod (201), and a plurality of the extension pressing plates (3) correspond to each other.

3. A mechanical seal testing device with a wide range of applications as claimed in claim 1, characterized in that: The extrusion rod (201) is provided with a through slot (13), the inner wall of the through slot (13) is provided with a rotating shaft (14), and one end of the connecting plate (202) away from the rotating rod (203) extends to the inside of the through slot (13) and is rotatably connected to the outer wall of the rotating shaft (14).

4. A mechanical seal testing device with a wide range of applications as claimed in claim 1, characterized in that: A slide groove (6) is provided on the top of the main body (1) of the mechanical seal testing device, circular support plates (5) are provided on both sides of the extrusion rod (201), an insertion rod (4) is installed between the two circular support plates (5), the extrusion rod (201) is rotatably connected to the outer wall of the insertion rod (4), the circular support plate (5) is located inside the slide groove (6), and the outer wall of the circular support plate (5) is slidably connected to the inner wall of the slide groove (6).

5. A mechanical seal testing device with a wide range of applications as claimed in claim 4, characterized in that: A servo motor (12) is installed on the inner bottom wall of the slide groove (6), and the driving end of the servo motor (12) is connected to a gear (11). A fixing block (7) is installed at one end of each of the two insertion rods (4), and a rack (8) meshingly connected to the gear (11) is installed on the outer wall of the fixing block (7).

6. A mechanical seal testing device with a wide range of applications as claimed in claim 5, characterized in that: Two support rods (10) are installed on the inner bottom wall of the slide groove (6), a storage tray (9) is connected between the two support rods (10), and the storage tray (9) is installed on the top of the support rods (10).

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