Mechanical sealing element stable in connection

Abstract

The utility model belongs to the technical field of mechanical sealing elements, and particularly relates to a mechanical sealing element stable in connection, which comprises a mounting seat, a plurality of section grooves are formed in one side of the mounting seat, movable adjusting blocks are arranged in the section grooves, a plurality of inserting grooves are formed in one side of each adjusting block, and the inserting grooves are connected with the section grooves. A top ring is arranged on one side of the outer portion of the mounting base, a plurality of inserting rods inserted into the inserting grooves are fixed to one side of the top ring, first springs arranged on the inserting rods in a sleeving mode are fixed to one side of the top ring, and a mounting disc in sliding contact with the adjusting block is fixed to the other end of each first spring. According to the mechanical sealing device, the screw pitch of the spring and the pressure of the top ring on the movable ring can be adjusted, so that a worker can adjust the pressure of the movable ring on the static ring according to actual requirements, the sealing requirements under the conditions of different media, different temperatures and different pressures can be met, the sealing effect of the mechanical sealing device is improved, medium leakage is avoided, and the service life of the mechanical sealing device is prolonged. And the practicability and the flexibility of the equipment are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical seals, and particularly relates to a mechanical seal with stable connection. Background Art

[0002] Mechanical seals are one of the precision and relatively complex mechanical basic components, and are widely used in various pumps, reaction synthesis kettles, turbine compressors, submersible motors and other equipment, and are key components of these equipment; a mechanical seal refers to a device that prevents fluid leakage by at least a pair of end faces (dynamic ring and static ring) perpendicular to the rotation axis being kept in contact and sliding relative to each other under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of auxiliary seals.

[0003] However, the pitch of the springs used in current mechanical seals is fixed and cannot be adjusted according to requirements, so the pressure of the top ring on the dynamic ring cannot be adjusted either, which makes it impossible for the staff to adjust the pressure of the dynamic ring on the static ring according to actual needs. In this way, it cannot meet the sealing requirements under different media, different temperatures and pressure conditions, reducing the sealing effect of the mechanical seal device, easily causing medium leakage, and further reducing the practicability and flexibility of the equipment. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a mechanical seal with stable connection, which can adjust the pitch of the spring and the pressure of the top ring on the dynamic ring, so that the staff can adjust the pressure of the dynamic ring on the static ring according to actual needs. In this way, it can meet the sealing requirements under different media, different temperatures and pressure conditions, improve the sealing effect of the mechanical seal device, avoid medium leakage, and further reduce the practicability and flexibility of the equipment.

[0005] The technical solution adopted by the utility model is specifically as follows:

[0006] A mechanical seal with stable connection includes a mounting seat. A plurality of adjustment grooves are formed on one side of the mounting seat. A movable adjustment block is arranged inside the adjustment grooves. A plurality of insertion grooves are formed on one side of the adjustment block. A top ring is arranged on the outer side of the mounting seat. A plurality of insertion rods inserted into the insertion grooves are fixed on one side of the top ring. A first spring sleeved on the insertion rods is fixed on one side of the top ring. The other end of the first spring is fixed with a mounting disc in sliding contact with the adjustment block. A dynamic ring is arranged on one side of the top ring. A sealing ring is arranged between the connection of the top ring and the dynamic ring. A static ring is arranged on one side of the dynamic ring. A slotted cross recess is arranged on one side of the adjustment block.

[0007] Further, scale lines are arranged on the outer wall of the adjustment block.

[0008] Further, a moving block is fixed to one end of the insertion rod located in the insertion slot. A turntable is rotatably installed on one side of the moving block. A second spring is fixed to one side of the turntable, and the other end of the second spring is fixed to the inner wall of the insertion slot.

[0009] Further, a plurality of fixing holes are formed in the outer wall of the mounting seat along the circumferential direction.

[0010] Further, a limiting block is arranged on the outer wall of the top ring, and a limiting groove cooperating with the limiting block is formed in the outer wall of the moving ring.

[0011] Further, the moving block is cylindrical in shape.

[0012] The technical effects achieved by the present utility model are as follows:

[0013] For a mechanical seal with stable connection of the present utility model, the first spring and the second spring are arranged. By using an external screwdriver to cooperate with the flat slot, the adjusting block can be rotated. The adjusting block is spirally connected with the adjusting groove, so that the adjusting block moves and presses the first spring and the second spring, thereby adjusting the pitch of the spring and adjusting the pressure of the top ring on the moving ring, enabling the staff to adjust the pressure of the moving ring on the stationary ring according to actual needs. In this way, it can meet the sealing requirements under different media, different temperatures and pressure conditions, improve the sealing effect of the mechanical seal device, avoid medium leakage, and further reduce the practicability and flexibility of the equipment. Description of the Drawings

[0014] Figure 1 is the front three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is the side sectional structural schematic diagram of the present utility model;

[0016] Figure 3 is the Figure 2 enlarged structural schematic diagram of area A in the present utility model.

[0017] In the drawings, the list of components represented by each reference numeral is as follows:

[0018] 1. Mounting seat; 2. Fixing hole; 3. Top ring; 4. Moving ring; 5. Stationary ring; 6. Adjusting groove; 7. Adjusting block; 8. Insertion slot; 9. Moving block; 10. Insertion rod; 11. First spring; 12. Mounting disc; 13. Flat slot; 14. Limiting block; 15. Second spring. Detailed Embodiment

[0019] In order to make the purpose and advantages of the present utility model clearer and more understandable, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model.

[0020] As Figures 1-3 shown, a mechanical seal with stable connection includes a mounting seat 1. A plurality of adjustment grooves 6 are provided on one side of the mounting seat 1. A movable adjustment block 7 is arranged inside the adjustment groove 6. The adjustment block 7 is screwed with the adjustment groove 6, so that when rotated, the adjustment block 7 can be moved. A plurality of insertion grooves 8 are provided on one side of the adjustment block 7. A top ring 3 is arranged on the outer side of one side of the mounting seat 1. A plurality of insertion rods 10 inserted into the insertion grooves 8 are fixed on one side of the top ring 3. A first spring 11 sleeved on the insertion rod 10 is fixed on one side of the top ring 3. The other end of the first spring 11 is fixed with a mounting disc 12 that is in sliding contact with the adjustment block 7. When rotating the adjustment block 7, the wear of the first spring 11 is reduced, and the rotation of the adjustment block 7 is also relatively smooth. A dynamic ring 4 is arranged on one side of the top ring 3. A sealing ring is arranged between the connection of the top ring 3 and the dynamic ring 4, which can effectively increase the sealing performance of the connection between the top ring 3 and the dynamic ring 4. A stationary ring 5 is arranged on one side of the dynamic ring 4. A slotted cross recess 13 is arranged on one side of the adjustment block 7. The arranged slotted cross recess 13 facilitates the easy rotation of the adjustment block 7 by an external screwdriver, which is relatively practical; the structure is simple and the operation is convenient. The pitch of the first spring 11 can be adjusted, so as to adjust the extrusion force of the top ring 3 on the dynamic ring 4, so that the dynamic ring 4 and the stationary ring 5 maintain a stable extrusion state, improving the stability and service life of the equipment; one end of the insertion rod 10 located in the insertion groove 8 is fixed with a moving block 9, making the movement of the insertion rod 10 relatively stable. A turntable is rotatably installed on one side of the moving block 9. A second spring 15 is fixed on one side of the turntable. The other end of the second spring 15 is fixed to the inner wall of the insertion groove 8. The setting of the second spring 15 has the same function as that of the first spring 11, which is to improve the sealed rotation of the top ring 3 driving the dynamic ring 4 and the stationary ring 5, improving the service life of the equipment; the shape of the moving block 9 is cylindrical. The cylindrical setting of the moving block 9 can match the insertion groove 8, so that when the moving block 9 moves stably in the insertion groove 8, it does not prevent the rotation of the adjustment block 7;

[0021] As Figures 1-3 shown, a scale line is provided on the outer wall of the adjustment block 7. When rotating the adjustment block 7, the moving distance of the adjustment block 7 can be clearly seen, which is relatively practical;

[0022] As Figures 1-2 shown, a plurality of fixing holes 2 are provided on the outer wall of the mounting seat 1 along the circumferential direction. Through the cooperation of the screws and the fixing holes 2, the mounting seat 1 can be stably fixed on the output shaft;

[0023] As Figure 1As shown, a limiting block 14 is provided on the outer wall of the top ring 3, and a limiting groove cooperating with the limiting block 14 is formed on the outer wall of the moving ring 4. It is relatively perfect that the rotation of the top ring 3 can drive the moving ring 4 to rotate, which is relatively practical.

[0024] The working principle of the present utility model is as follows: After the mounting seat 1, the fixing hole 2, the top ring 3, the moving ring 4 and the stationary ring 5 are installed, an external wrench can be inserted into the flat slot 13 and rotated. The adjusting block 7 is threadedly connected with the insertion slot 8. During the rotation of the adjusting block 7 and at the same time, it moves. The adjusting block 7 presses the first spring 11, and the moving block 9 presses the second spring 15, and adjusts the pitch of the first spring 11 and the second spring 15, and adjusts the pressing force of the top ring 3 on the moving ring 4, so that the moving ring 4 and the stationary ring 5 maintain a stable pressing state, thereby improving the stability of the connection between the moving ring 4 and the stationary ring 5.

[0025] The above is only the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present utility model. The structures, devices and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A mechanical seal with stable connection, characterized in that: The invention comprises a mounting seat (1), a plurality of adjustment grooves (6) are provided on one side of the mounting seat (1), a movable adjustment block (7) is provided inside the adjustment groove (6), a plurality of plug-in grooves (8) are provided on one side of the adjustment block (7), a top ring (3) is provided on the outer side of the mounting seat (1), a plurality of plug-in rods (10) inserted into the plug-in grooves (8) are fixed on one side of the top ring (3), a first spring (11) sleeved on the plug-in rods (10) is fixed on one side of the top ring (3), a mounting plate (12) in sliding contact with the adjustment block (7) is fixed on the other end of the first spring (11), a moving ring (4) is provided on one side of the top ring (3), a sealing ring is provided between the connection between the top ring (3) and the moving ring (4), a stationary ring (5) is provided on one side of the moving ring (4), and a straight groove (13) is provided on one side of the adjustment block (7).

2. A mechanical seal with stable connection according to claim 1, characterized in that: The outer wall of the adjustment block (7) is provided with scale lines.

3. A mechanical seal with stable connection according to claim 1, characterized in that: A moving block (9) is fixed to one end of the plug-in rod (10) located in the plug-in slot (8), a turntable is rotatably mounted on one side of the moving block (9), a second spring (15) is fixed to one side of the turntable, and the other end of the second spring (15) is fixed to the inner wall of the plug-in slot (8).

4. A mechanical seal with stable connection according to claim 1, characterized in that: A plurality of fixing holes (2) are provided on the outer wall of the mounting seat (1) along the circumferential direction.

5. A mechanical seal with stable connection according to claim 1, characterized in that: A limiting block (14) is arranged on the outer wall of the top ring (3), and a limiting groove cooperating with the limiting block (14) is opened on the outer wall of the moving ring (4).

6. A mechanical seal with stable connection according to claim 3, characterized in that: The moving block (9) is cylindrical in shape.

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