Wear-resistant mechanical seal transmission shaft

Abstract

The utility model discloses a wear-resistant mechanical seal transmission shaft, which relates to the field of mechanical seal transmission shafts, and comprises a rotating shaft machine body, a first rotating piece and a support plate, a lubricating component is arranged on the outer side of the middle section of the rotating shaft machine body, and the lubricating component comprises a fixed cover, a rolling ball, a limiting vertical plate and a cavity, the first rotating part is rotationally connected to the inner side of the upper end of the rotating shaft machine body, a second rotating part is rotationally connected to the inner side of the lower end of the rotating shaft machine body, and a mounting plate is arranged below the second rotating part. According to the wear-resistant mechanical seal transmission shaft, the lubricating assembly and the fixing rod are arranged, in the using process of the mechanical seal transmission shaft, the mechanical seal transmission shaft is lubricated, the wear resistance of the mechanical seal transmission shaft is improved, meanwhile, the mechanical seal transmission shaft is convenient to install, and the service life of the mechanical seal transmission shaft is prolonged. And the situation of loosening and falling in the subsequent use process is avoided, and workers can conveniently use the mechanical seal transmission shaft.

Description

Technical Field

[0001] The utility model relates to the field of mechanical seal drive shafts, and specifically to a wear-resistant mechanical seal drive shaft. Background Technique

[0002] A mechanical seal drive shaft is a shaft seal device used in rotating machinery, mainly applied to equipment such as centrifugal pumps, centrifuges, reactors, and compressors. It has the advantages of less leakage and long service life. Therefore, it is widely used as the main shaft seal method in these devices. It is an important shaft seal device used to prevent the leakage of media in rotating machinery and has extensive applications and important technical value.

[0003] However, there are still some deficiencies in the current mechanical seal drive shafts. The existing mechanical seal drive shafts have not been comprehensively considered in terms of the installation structure. During the use of the mechanical seal drive shaft, if the installation structure of the mechanical seal drive shaft is not comprehensively considered, the connection between the structures may not be tight enough, affecting the stability of the overall structure, and it may loosen and fall off during subsequent use, which is not convenient for the staff to use the mechanical seal drive shaft.

[0004] Therefore, it is urgent to improve this shortcoming. The utility model researches and improves the existing structure and deficiencies, and provides a wear-resistant mechanical seal drive shaft. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wear-resistant mechanical seal drive shaft to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A wear-resistant mechanical seal drive shaft, including a rotating shaft body, a first rotating member, and a support plate. A lubrication assembly is arranged on the outer side of the middle section of the rotating shaft body, and the lubrication assembly includes a fixed cover, rolling balls, limiting vertical plates, and a cavity. The first rotating member is rotatably connected to the inner side of the upper end of the rotating shaft body, and a second rotating member is rotatably connected to the inner side of the lower end of the rotating shaft body. And a mounting plate is arranged below the second rotating member, and a fixed rod is arranged below the mounting plate. The support plate is fixedly connected to the lower part of the mounting plate by bolts, and a fixed ring is welded to the outer wall of the support plate. And the bottom edge of the fixed ring is fixedly connected to a support vertical rod, and the bottom end of the support vertical rod is fixedly connected to a support seat.

[0007] Further, the fixed cover is arranged on the outer side of the rotating shaft body, and the upper and lower inner walls of the fixed cover are in contact with the outer wall of the rotating shaft body, and the rolling balls are snap-fitted and rotatably connected to the inner wall of the fixed cover.

[0008] Furthermore, the rolling ball is in contact with the outer wall of the rotating shaft body, and a limiting vertical plate is snap-fitted and rotatably connected to the outside of the rolling ball, and the limiting vertical plate is welded inside the fixed cover.

[0009] Furthermore, a cavity is provided inside the fixed cover, and the cavity is provided between the fixed cover and the limiting vertical plate.

[0010] Furthermore, a connecting block is welded to one side of the second rotating member, and the connecting block is welded to the center of the top of the mounting plate.

[0011] Furthermore, the fixing rod is welded to the center of the bottom of the mounting plate, and the fixing rod is connected through the center of the support plate.

[0012] Furthermore, a thread is provided on the outer wall of the fixing rod, and the fixing rod is rotatably connected to a hollow rod through the thread, and the hollow rod is arranged above the support seat.

[0013] Furthermore, a limiting rotating block is welded to the center of the bottom of the hollow rod, and the limiting rotating block is arranged at the center of the support seat, and a rotating block is welded to the bottom of the limiting rotating block, and the rotating block is arranged below the support seat.

[0014] The utility model provides a wear-resistant mechanical seal drive shaft, which has the following beneficial effects:

[0015] 1. The utility model is provided with a lubricating component. During the use of the mechanical seal drive shaft, the rolling ball is rotatably engaged inside the fixed cover. As the rolling ball rotates, the lubricant is gradually rolled out, thereby lubricating the mechanical seal drive shaft, improving the wear resistance of the mechanical seal drive shaft, avoiding damage during subsequent use, protecting the mechanical seal drive shaft, and facilitating the use of the mechanical seal drive shaft by the staff.

[0016] 2. The utility model is provided with a fixing rod. During the use of the mechanical seal drive shaft, the fixing rod is rotated into the hollow rod by using the thread, and then the mounting plate and the support plate are fixed by using bolts, thereby completing the installation of the mechanical seal drive shaft. The structure is simple, improving the installation efficiency of the staff, and the connection between the structures is tight, the structure is more stable, avoiding the situation of loose detachment during subsequent use, and facilitating the use of the mechanical seal drive shaft by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic diagram of a wear-resistant mechanical seal drive shaft of the utility model;

[0018] Figure 2 is a three-dimensional structure bottom view schematic diagram of a wear-resistant mechanical seal drive shaft of the utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the lubrication component of a wear-resistant mechanical seal drive shaft of the present utility model;

[0020] Figure 4 This is a schematic exploded view of the three-dimensional structure of the mounting plate-rotating block of a wear-resistant mechanical seal drive shaft of the present utility model.

[0021] In the figure: 1, rotating shaft body; 2, lubrication component; 201, fixed cover; 202, rolling ball; 203, limiting vertical plate; 204, cavity; 3, first rotating member; 4, second rotating member; 5, mounting plate; 6, connecting block; 7, fixing rod; 8, support plate; 9, fixing ring; 10, support vertical rod; 11, support seat; 12, hollow rod; 13, limiting rotating block; 14, rotating block. Specific embodiments

[0022] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0023] As Figures 1-3 shown, a wear-resistant mechanical seal drive shaft includes a rotating shaft body 1, a first rotating member 3 and a support plate 8. A lubrication component 2 is provided on the outer side of the middle section of the rotating shaft body 1, and the lubrication component 2 includes a fixed cover 201, a rolling ball 202, a limiting vertical plate 203 and a cavity 204. The fixed cover 201 is provided on the outer side of the rotating shaft body 1, and the upper and lower inner walls of the fixed cover 201 are in contact with the outer wall of the rotating shaft body 1. And the inner wall of the fixed cover 201 is engaged and rotatably connected with a rolling ball 202. The rolling ball 202 is in contact with the outer wall of the rotating shaft body 1, and the outer side of the rolling ball 202 is engaged and rotatably connected with a limiting vertical plate 203. And the limiting vertical plate 203 is welded inside the fixed cover 201. A cavity 204 is provided inside the fixed cover 201, and the cavity 204 is provided between the fixed cover 201 and the limiting vertical plate 203;

[0024] The specific operation is as follows. The staff fills the lubricant in the cavity 204 provided inside the fixed cover 201, and uses the limiting vertical plate 203 to engage and rotate the rolling ball 202 inside the fixed cover 201, and makes the surface of the rolling ball 202 in contact with the outer wall of the rotating shaft body 1. During subsequent use, as the rolling ball 202 rotates, the lubricant is gradually rolled out, improving the wear resistance of the mechanical seal drive shaft, protecting the mechanical seal drive shaft, and facilitating the staff to use the mechanical seal drive shaft.

[0025] As Figure 1 、 Figure 2 and Figure 4As shown in the figure, the first rotating member 3 is rotatably connected to the inner upper end of the rotating shaft body 1, and the second rotating member 4 is rotatably connected to the inner lower end of the rotating shaft body 1. A mounting plate 5 is arranged below the second rotating member 4. A connecting block 6 is welded to one side of the second rotating member 4, and the connecting block 6 is welded to the center of the top of the mounting plate 5. A fixing rod 7 is arranged below the mounting plate 5. The fixing rod 7 is welded to the center of the bottom of the mounting plate 5, and the fixing rod 7 is connected through the center of the support plate 8. The support plate 8 is fixedly connected to the mounting plate 5 by bolts. A fixing ring 9 is welded to the outer wall of the support plate 8, and a support vertical rod 10 is fixedly connected to the bottom edge of the fixing ring 9. The bottom end of the support vertical rod 10 is fixedly connected to a support seat 11. A thread is arranged on the outer wall of the fixing rod 7, and the fixing rod 7 is rotatably connected to a hollow rod 12 through the thread. The hollow rod 12 is arranged above the support seat 11. A limiting rotating block 13 is welded to the center of the bottom of the hollow rod 12, and the limiting rotating block 13 is arranged in the center of the support seat 11. A rotating block 14 is welded to the bottom of the limiting rotating block 13, and the rotating block 14 is arranged below the support seat 11;

[0026] The specific operation is as follows. The staff places the mounting plate 5 above the support plate 8, so that the fixing rod 7 arranged below the mounting plate 5 extends into the center of the support plate 8. At the same time, the staff can rotate the rotating block 14 arranged below the support seat 11, so that the hollow rod 12 welded above the rotating block 14 through the limiting rotating block 13 rotates, so that the fixing rod 7 gradually rotates into the interior of the hollow rod 12. When the fixing rod 7 enters a certain distance, the bottom of the mounting plate 5 contacts the top of the support plate 8, and then the mounting plate 5 and the support plate 8 are fixed by bolts, so as to complete the installation of the mechanical seal drive shaft, making the connection between the structures tight and the structure more stable, and facilitating the staff to use the mechanical seal drive shaft.

[0027] In summary, the wear-resistant mechanical seal drive shaft, according to Figures 1-4In the structure shown, during the use of the mechanical seal drive shaft, first, the staff fills the lubricant in the cavity 204 provided inside the fixed cover 201, and uses the limiting vertical plate 203 to engage and rotate the rolling ball 202 inside the fixed cover 201, and makes the surface of the rolling ball 202 contact the outer wall of the rotating shaft body 1. During subsequent use, as the rolling ball 202 rotates, the lubricant is gradually rolled out, thereby lubricating the mechanical seal drive shaft. Then, the staff places the mounting plate 5 above the support plate 8, so that the fixing rod 7 provided below the mounting plate 5 extends into the center of the support plate 8. At the same time, the staff can rotate the rotating block 14 provided below the support seat 11, so that the hollow rod 12 welded by the limiting rotating block 13 above the rotating block 14 rotates, so that the fixing rod 7 gradually rotates into the inside of the hollow rod 12. When the fixing rod 7 enters a certain distance, the bottom of the mounting plate 5 contacts the top of the support plate 8, and then the mounting plate 5 and the support plate 8 are fixed by bolts, thus completing the installation of the mechanical seal drive shaft. The structure is simple, which is convenient for the staff to use the mechanical seal drive shaft.

[0028] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described to better explain the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A wear-resistant mechanical seal drive shaft, comprising a rotating shaft body (1), a first rotating member (3) and a support plate (8), characterized in that, On the outer side of the middle section of the rotating shaft body (1), a lubrication component (2) is provided, and the lubrication component (2) includes a fixed cover (201), rolling balls (202), limiting vertical plates (203), and a cavity (204). The first rotating member (3) is rotatably connected to the inner side of the upper end of the rotating shaft body (1), and the second rotating member (4) is rotatably connected to the inner side of the lower end of the rotating shaft body (1). And a mounting plate (5) is provided below the second rotating member (4), and a fixing rod (7) is provided below the mounting plate (5). The support plate (8) is fixedly connected to the lower part of the mounting plate (5) by bolts, and a fixing ring (9) is welded to the outer wall of the support plate (8). And the bottom edge of the fixing ring (9) is fixedly connected to a support vertical rod (10), and the bottom end of the support vertical rod (10) is fixedly connected to a support seat (11).

2. The wear-resistant mechanical seal drive shaft according to claim 1, characterized in that, The fixed cover (201) is arranged on the outer side of the rotating shaft body (1), and the upper and lower inner walls of the fixed cover (201) are in contact with the outer wall of the rotating shaft body (1). And the rolling balls (202) are engaged and rotatably connected to the inner wall of the fixed cover (201).

3. A wear-resistant mechanical seal drive shaft according to claim 1, characterized in that, The rolling balls (202) are in contact with the outer wall of the rotating shaft body (1), and the limiting vertical plates (203) are engaged and rotatably connected to the outer sides of the rolling balls (202). And the limiting vertical plates (203) are welded inside the fixed cover (201).

4. A wear-resistant mechanical seal drive shaft according to claim 1, characterized in that, A cavity (204) is arranged inside the fixed cover (201), and the cavity (204) is arranged between the fixed cover (201) and the limiting vertical plates (203).

5. A wear-resistant mechanical seal drive shaft according to claim 1, characterized in that, A connecting block (6) is welded to one side of the second rotating member (4), and the connecting block (6) is welded to the center of the top of the mounting plate (5).

6. The wear-resistant mechanical seal drive shaft according to claim 1, wherein The fixing rod (7) is welded to the center of the bottom of the mounting plate (5), and the fixing rod (7) is connected through the center of the support plate (8).

7. A wear-resistant mechanical seal drive shaft according to claim 1, characterized in that, Threads are provided on the outer wall of the fixing rod (7), and the fixing rod (7) is rotatably connected to a hollow rod (12) through the threads. And the hollow rod (12) is arranged above the support seat (11).

8. A wear-resistant mechanical seal drive shaft according to claim 7, wherein, A limiting rotating block (13) is welded to the center of the bottom of the hollow rod (12), and the limiting rotating block (13) is arranged at the center of the support seat (11). And a rotating block (14) is welded to the bottom of the limiting rotating block (13), and the rotating block (14) is arranged below the support seat (11).

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