High-performance mechanical sealing element with corrosion-resistant effect

Abstract

The utility model discloses a high-performance mechanical sealing element with a corrosion-resistant effect, which comprises a shell, a rotating shaft rotationally arranged in the middle of the shell, a fixed mounting sleeve arranged on the outer surface of the rotating shaft in a sleeving manner, and a fixed pressing block arranged in the middle of the fixed mounting sleeve in a penetrating manner, a rubber sealing sleeve and a lubricating oil pipe are fixed to the outer surface of the fixing pressing block, the lubricating oil pipe is fixedly installed at the upper end of the shell, and the connecting mechanism is arranged at the left end of the shell. According to the high-performance mechanical sealing piece with the corrosion-resistant effect, the fixed pressing block and the fixed mounting sleeve are conveniently mounted in the shell, lubricating oil is conveniently added to the connecting position through the arrangement of a first lubricating groove, a second lubricating groove and a lubricating oil pipe, the stability in the rotating process is improved, and by combining with the arrangement of a connecting mechanism, the sealing effect is improved. And the joint can be further reinforced and sealed, and the service life of the whole mechanical sealing assembly is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical seal related technical field, concretely is a kind of high-performance mechanical seal with corrosion-resistant effect. BACKGROUND

[0002] Mechanical seal refers to the device that prevents fluid leakage by at least one pair of end faces perpendicular to the axis of rotation, the main function of mechanical seal is to prevent fluid leakage, prevent pollution, reduce friction and wear, withstand pressure and temperature change, and improve machine efficiency and save raw materials, it is very widely used in centrifugal pump, compressor, reaction kettle and other equipment;

[0003] As the announcement number CN207131863U, discloses a kind of mechanical seal with corrosion resistance, including shaft sleeve, dynamic ring and static ring, shaft sleeve outer surface is covered with dynamic ring and static ring, static ring and shaft sleeve are fixedly connected by static ring seat, dynamic ring and dynamic ring seat are covered on shaft sleeve, dynamic ring one side is provided with baffle, baffle upper surface is placed with upper cover cylinder, dynamic ring seat upper surface is provided with lower cover cylinder, recess and protrusion, which are engaged with each other, are arranged on the combined surface of upper cover cylinder and lower cover cylinder, spring cavity is formed between upper cover cylinder, lower cover cylinder, dynamic ring, dynamic ring seat and shaft sleeve, spring is arranged between spring cavity, the spring is covered on the outer surface of the shaft sleeve here, the upper surface of the baffle of dynamic ring is provided with upper thread, the upper cover cylinder corresponding with the upper thread is provided with lower thread, the upper thread is matched with lower thread to connect dynamic ring and upper cover cylinder.The utility model is rationally designed, and the structure is simple, convenient to install, firm, has very good corrosion resistance, prolongs the service life of sealing ring piece;

[0004] However, the fastening between the components of the mechanical seal in the prior art is poor, which is prone to deformation during long-term use, affects the actual sealing effect, and is not convenient for adding lubricating oil for lubrication, the sealing assembly is relatively single, it is not convenient to reinforce the connection, and the service life is not long, for example, the above-mentioned comparative patent has the problem;

[0005] Therefore, we propose a kind of high-performance mechanical seal with corrosion-resistant effect to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of high-performance mechanical seal with corrosion-resistant effect to solve the problem of poor fastening between the components of the mechanical seal in the prior art, which is prone to deformation during long-term use, affects the actual sealing effect, and is not convenient for adding lubricating oil for lubrication, the sealing assembly is relatively single, it is not convenient to reinforce the connection, and the service life is not long.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: A high-performance mechanical sealing element with corrosion resistance effect, including shell, rotatingly installed in the middle part of the shell The fixed mounting sleeve is arranged on the outer surface of the rotating shaft;

[0008] Also includes:

[0009] The fixed pressing block is arranged in the middle part of the fixed mounting sleeve, and the outer surface of the fixed pressing block is fixed with a rubber sealing sleeve, which is arranged on the inner side wall of the fixed mounting sleeve, and the first sealing ring is arranged between the fixed pressing block and the shell.

[0010] Among them, the second sealing ring is arranged between the right end of the fixed pressing block and the fixed mounting sleeve, and the rotating shaft is respectively inserted in the middle part of the fixed pressing block and the fixed mounting sleeve.

[0011] The lubricating oil pipe is fixedly installed at the upper end of the shell.

[0012] The connecting mechanism is arranged at the left end of the shell, and is used for reinforcing and sealing between the shell and the rotating shaft.

[0013] Preferably, the upper end of the fixed pressing block is provided with a first lubricating groove, and the upper end of the fixed mounting sleeve is provided with a second lubricating groove.

[0014] Preferably, the second lubricating groove is arranged opposite the first lubricating groove, and the upper end of the second lubricating groove is connected with the bottom of the lubricating oil pipe.

[0015] Preferably, the left end of the fixed mounting sleeve is provided with a mounting rod, and the mounting rod is fixedly connected to the inner side wall of the shell, and the outer surface of the mounting rod is threadedly connected with a mounting cap for limiting, and the mounting cap is arranged on the left end of the fixed mounting sleeve.

[0016] Preferably, the mounting rod and the mounting cap are arranged at equal angles on the left end of the fixed mounting sleeve, and the mounting rod and the mounting cap drive the fixed mounting sleeve to constitute a dismounting structure on the inner side of the shell.

[0017] Preferably, the connecting mechanism comprises a connecting barrel fixedly connected to the left end of the shell, a connecting cap for limiting, a third sealing ring arranged between the left end of the connecting barrel and the connecting cap, and a fastening bolt for locking.

[0018] Preferably, the connecting cap is threadedly connected to the outer surface of the connecting barrel, and the connecting cap and the shell are limited by the fastening bolt.

[0019] Preferably, the connecting cap and the rotating shaft are connected through, and the connecting barrel and the rotating shaft are connected through.

[0020] Compared with the prior art, the high-performance mechanical sealing piece with corrosion resistance has the following beneficial effects: the installation rod and the installation cap are arranged, so that the fixed pressing block and the fixed mounting sleeve can be conveniently installed in the shell, and the first lubricating groove, the second lubricating groove and the lubricating oil pipe are arranged, so that the connecting part can be conveniently lubricated, the stability during rotation is improved, the connecting mechanism is arranged, the connecting part can be further reinforced and sealed, and the service life of the mechanical sealing assembly is prolonged.

[0021] 1. The first lubricating groove, the second lubricating groove and the lubricating oil pipe are arranged, the lubricating oil pipe, the second lubricating groove and the first lubricating groove are connected, so that the connecting part during rotation can be conveniently lubricated, and the stability during the whole rotation process is improved.

[0022] 2. The installation rod and the installation cap are arranged at the left end of the fixed mounting sleeve at equal angles, so that the fixed pressing block and the fixed mounting sleeve can be conveniently installed in the shell and conveniently disassembled.

[0023] 3. The connecting mechanism is arranged and comprises a connecting barrel, a connecting cap, a third sealing ring and a fastening bolt, so that the connecting part can be further reinforced and sealed. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 4 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 5 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 6 It is a schematic diagram of the overall structure of the utility model Figure 1 A enlarged structure schematic diagram in the utility model;

[0030] Figure 7 It is a schematic diagram of the overall structure of the utility model;

[0031] Figure 8 It is a schematic diagram of the overall structure of the utility model;

[0032] In the figure: 1, the shell; 2, the rotating shaft; 3, the first sealing ring; 4, the fixed pressing block; 5, the first lubricating groove; 6, the second sealing ring; 7, the fixed mounting sleeve; 8, the second lubricating groove; 9, the mounting rod; 10, the mounting cap; 11, the lubricating oil pipe; 12, the connecting mechanism; 13, the connecting cylinder; 14, the connecting cap; 15, the third sealing ring; 16, the fastening bolt. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Please refer to Figures 1-8 The present application provides the following technical solutions.

[0035] In order to solve the problem of poor fastening between components in the prior art, deformation occurs easily during long-term use, and the actual sealing effect is affected, therefore, the present embodiment provides a high-performance mechanical sealing element with corrosion resistance, which is provided with a shell 1, a rotating shaft 2, a first sealing ring 3, a fixed pressing block 4, a second sealing ring 6, a fixed mounting sleeve 7, a mounting rod 9 and a mounting cap 10. The fixed pressing block 4 is arranged through the middle part of the fixed mounting sleeve 7, and a rubber sealing sleeve is fixed to the outer surface of the fixed pressing block 4. The rubber sealing sleeve is arranged in close contact with the inner side wall of the fixed mounting sleeve 7. The first sealing ring 3 is arranged in close contact between the fixed pressing block 4 and the shell 1. The second sealing ring 6 is arranged in close contact between the right end of the fixed pressing block 4 and the fixed mounting sleeve 7. The rotating shaft 2 is respectively inserted into the middle part of the fixed pressing block 4 and the fixed mounting sleeve 7. The left end of the fixed mounting sleeve 7 is arranged through the mounting rod 9, and the mounting rod 9 is fixedly connected to the inner side wall of the shell 1. The outer surface of the mounting rod 9 is threadedly connected with the mounting cap 10 for limiting. The mounting cap 10 is arranged in close contact with the left end of the fixed mounting sleeve 7. The mounting rod 9 and the mounting cap 10 are arranged at equal angles at the left end of the fixed mounting sleeve 7. The mounting rod 9 and the mounting cap 10 drive the fixed mounting sleeve 7 to constitute a dismounting structure on the inner side of the shell 1. The fixed pressing block 4 and the fixed mounting sleeve 7 are respectively arranged around the rotating shaft 2. The fixed pressing block 4 presses and positions the first sealing ring 3. The fixed mounting sleeve 7 is arranged around the fixed pressing block 4. The second sealing ring 6 is arranged in close contact between the fixed mounting sleeve 7 and the fixed pressing block 4. The outer side of the fixed pressing block 4 is provided with a positioning key which is clamped and inserted into the inner side wall of the fixed mounting sleeve 7 to position the fixed pressing block 4 and the fixed mounting sleeve 7. Figure 2 ,Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the first sealing ring 3 and the second sealing ring 6 provide a good sealing effect. The mounting rod 9 is inserted into the left end of the fixed mounting sleeve 7. By rotating the mounting cap 10, which is threaded onto the outer surface of the mounting rod 9, the mounting cap 10 and the fixed mounting sleeve 7 are fitted together. This allows for convenient installation and positioning of the fixed mounting sleeve 7 and the fixed pressure block 4, facilitating easy assembly and disassembly. The installation is highly secure, preventing deformation during long-term use. Furthermore, the entire mechanical seal component is made of corrosion-resistant high-strength steel, effectively preventing corrosion by the medium and extending the service life of the overall mechanical seal assembly.

[0036] Example 2: Existing high-performance mechanical seals with corrosion resistance are inconvenient to lubricate at the joints. Therefore, a first lubrication groove 5, a second lubrication groove 8, and a lubrication oil pipe 11 are provided. The upper end of the fixing block 4 has the first lubrication groove 5, and the upper end of the fixing sleeve 7 has the second lubrication groove 8. The second lubrication groove 8 is aligned with the first lubrication groove 5, and the upper end of the second lubrication groove 8 is inserted into the bottom of the lubrication oil pipe 11. Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, lubricating oil is added to the lubricating oil pipe 11. The lubricating oil is added to the rotating shaft 2 through the lubricating oil pipe 11, the second lubricating groove 8 and the first lubricating groove 5, thereby maintaining the stability of the rotating shaft 2 during rotation.

[0037] Example 3: Existing high-performance mechanical seals with corrosion resistance have relatively simple sealing components, making it inconvenient to reinforce the connection points and resulting in a short service life. Therefore, a connecting mechanism 12 is provided. The connecting mechanism 12 includes a connecting cylinder 13 fixedly connected to the left end of the housing 1, a connecting cap 14 for limiting position, a third sealing ring 15 fitted between the left end of the connecting cylinder 13 and the connecting cap 14, and a fastening bolt 16 for locking. The connecting cap 14 is threaded onto the outer surface of the connecting cylinder 13, and the connecting cap 14 is limited to the housing 1 by the fastening bolt 16. Figure 1 and Figure 8 As shown, the connecting cap 14 is threaded onto the outer surface of the connecting cylinder 13. The connecting cap 14 and the rotating shaft 2, as well as the connecting cylinder 13 and the rotating shaft 2, are all through connections. A third sealing ring 15 is fitted between the connecting cap 14 and the connecting cylinder 13. The fastening bolt 16 locks the connecting cap 14 and the housing 1, thereby further improving the sealing effect of the overall mechanical seal.

[0038] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-performance mechanical seal with corrosion-resistant effect, comprising a shell (1), a rotating shaft (2) rotatably installed in the middle of the shell (1), and a fixed mounting sleeve (7) sleeved on the outer surface of the rotating shaft (2); characterized in that Further comprising: a fixed pressing block (4) which is arranged through the middle of the fixed mounting sleeve (7), and the outer surface of the fixed pressing block (4) is fixed with a rubber sealing sleeve which is arranged in close contact with the inner side wall of the fixed mounting sleeve (7), and a first sealing ring (3) is arranged in close contact between the fixed pressing block (4) and the shell (1); Wherein, a second sealing ring (6) is arranged in close contact between the right end of the fixed pressing block (4) and the fixed mounting sleeve (7), and the rotating shaft (2) is respectively inserted into the middle of the fixed pressing block (4) and the fixed mounting sleeve (7); A lubricating oil pipe (11) is fixedly installed at the upper end of the shell (1); A connecting mechanism (12) is arranged at the left end of the shell (1), and the connecting mechanism (12) is used for reinforcing and sealing between the shell (1) and the rotating shaft (2).

2. A high performance mechanical seal with corrosion resistant effect according to claim 1, characterized in that: A first lubricating groove (5) is formed in the upper end of the fixed pressing block (4), and a second lubricating groove (8) is formed in the upper end of the fixed mounting sleeve (7).

3. A high performance mechanical seal with corrosion resistant effect according to claim 2, characterized in that: The second lubricating groove (8) is arranged opposite to the first lubricating groove (5), and the upper end of the second lubricating groove (8) is connected with the bottom of the lubricating oil pipe (11) in plug connection.

4. A high performance mechanical seal with corrosion resistant effect as claimed in claim 1 wherein: A mounting rod (9) is arranged through the left end of the fixed mounting sleeve (7), and the mounting rod (9) is fixedly connected to the inner side wall of the shell (1), and the outer surface of the mounting rod (9) is threadedly connected with a mounting cap (10) for limiting, and the mounting cap (10) is arranged in close contact with the left end of the fixed mounting sleeve (7).

5. A high performance mechanical seal with corrosion resistant effect according to claim 4, characterized in that: The mounting rod (9) and the mounting cap (10) are arranged at equal angles at the left end of the fixed mounting sleeve (7), and the mounting rod (9) drives the fixed mounting sleeve (7) to constitute a dismounting structure in the inner side of the shell (1) in combination with the mounting cap (10).

6. A high performance mechanical seal with corrosion resistant effect as claimed in claim 1 wherein: The connecting mechanism (12) comprises a connecting barrel (13) fixedly connected to the left end of the shell (1), a connecting cap (14) for limiting, a third sealing ring (15) arranged in close contact between the left end of the connecting barrel (13) and the connecting cap (14), and a fastening bolt (16) for locking.

7. A high performance mechanical seal with corrosion resistant effect according to claim 6, characterized in that: The connecting cap (14) is threadedly connected to the outer surface of the connecting barrel (13), and the connecting cap (14) and the shell (1) are limited by the fastening bolt (16).

8. A high performance mechanical seal with corrosion resistant effect according to claim 7, characterized in that: The connecting cap (14) and the rotating shaft (2) are connected in penetration, and the connecting barrel (13) and the rotating shaft (2) are also connected in penetration.

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