Mechanical sealing element with self-lubricating structure
By designing the liquid storage tank and elastic ball in the mechanical seal, combined with the structure of rotating the sealing plate and snap buckle, the problems of inconvenience and leakage of lubricant oil in traditional seals are solved, and the lubricant is self-poured and fixed, improving the Sealing effect.
Patent Information
- Application Number
- CN202421024417.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-13
AI Technical Summary
Traditional mechanical seals are not convenient to add lubricant, and lubricant leakage is prone to occur.
A mechanical seal with a self-lubricating structure is designed, including a sealing shell and a sealing cover. The sealing block is equipped with a liquid storage tank and elastic balls. The lubricating oil is poured and fixed by rotating the sealing plate and snaps to avoid Liquid leak.
The process of convenient addition of lubricant oil is realized, while avoiding lubricant leakage, improving the convenience of seals and sealing effect.
Smart Images
Figure CN222255050U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical seals, in particular to a mechanical seal with a self-lubricating structure. Background Art
[0002] Mechanical seals are an indispensable key component in modern industry. They are widely used in various rotating machinery and equipment, playing an important role in preventing fluid leakage and maintaining the normal operation of the system. Their design and manufacturing quality are directly related to the working efficiency, safety and maintenance cost of the equipment.
[0003] Existing mechanical seals improve sealing and surface friction by adding lubricating oil. However, it is not convenient to add lubricating oil to traditional mechanical seals, and lubricating oil leakage is prone to occur. Therefore, a mechanical seal with a self-lubricating structure is proposed to solve the above problems. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a mechanical seal with a self-lubricating structure, aiming to improve the problem in the prior art that it is inconvenient to add lubricating oil and lubricating oil leakage easily occurs.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mechanical seal with a self-lubricating structure, comprising a sealing shell and a sealing cover, a sealing block is slidably connected to the inside of the sealing shell, a connecting hole is provided at the top of the sealing block, a shaft rod is fixedly connected to the inside of the connecting hole, a spring 2 is fixedly connected to the inside of the sealing shell, a liquid storage tank is provided at the top of each sealing block, elastic balls are installed inside the two liquid storage tanks, a mounting groove is provided at the top of each sealing block, a rotating drum is rotatably connected to the inner wall of the connecting hole, a sealing plate is fixedly connected to the outer wall of the rotating drum, the bottoms of the two sealing plates are arranged inside the mounting groove, card slots are provided on the left and right sides of the tops of the two sealing plates, a mounting hole is provided at the top of each sealing block, a buckle is slidably connected to the inside of the two mounting holes, a spring 3 is fixedly connected to the bottom ends of the two buckles, and a fixing mechanism is provided on the outer wall of the sealing cover.
[0006] As a further description of the above technical solution:
[0007] The fixing mechanism includes two fixing blocks, the adjacent sides of the two fixing blocks are fixedly connected to the outer wall of the sealing cover, the opposite sides of the two fixing blocks are slidably connected with a pull rod, the outer walls of the two pull rods are fixedly connected to a limiting plate, the opposite sides of the two limiting plates are fixedly connected with a spring 1, and the outer walls of the sealing blocks are provided with fixing holes.
[0008] As a further description of the above technical solution:
[0009] The ends of the two pull rods that are away from each other are both fixedly connected with pull rings.
[0010] As a further description of the above technical solution:
[0011] A sealing ring is fixedly connected to the bottom of the outer wall of the sealing block, and the outer wall of the sealing ring is arranged inside the sealing shell.
[0012] As a further description of the above technical solution:
[0013] The outer walls of the sealing blocks are fixedly connected with a plurality of copper tubes, and the top ends of the plurality of copper tubes are arranged at the bottom of the sealing cover.
[0014] As a further description of the above technical solution:
[0015] The bottom of the outer wall of the sealing shell is threadedly connected with a plurality of fixing bolts.
[0016] As a further description of the above technical solution:
[0017] The top of the sealing cover is fixedly connected with a handle.
[0018] As a further description of the above technical solution:
[0019] The outer walls of the two handles are fixedly connected with anti-slip sleeves.
[0020] The utility model has the following beneficial effects:
[0021] 1. In the utility model, the lubricating liquid is poured into the liquid storage tank, the shaft rod can be lubricated by the elastic ball bearing, the liquid storage tank can be opened and closed by rotating the sealing plate, and then fixed in the slot by a buckle, so as to fix the sealing plate, which makes it convenient to pour the lubricating oil and avoids liquid leakage.
[0022] 2. In the utility model, the pull rod is limited by a limit plate to prevent it from falling off. A spring is installed on the outer wall of the pull rod. The spring is squeezed by pulling the pull rod, and then the pull rod is loosened to be inserted into the fixing hole to complete the installation and fixation of the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a three-dimensional schematic diagram of a mechanical seal with a self-lubricating structure proposed by the utility model;
[0024] Figure 2 This is a cross-sectional view of a mechanical seal with a self-lubricating structure proposed by the utility model;
[0025] Figure 3This is a disassembled diagram of a mechanical seal with a self-lubricating structure proposed by the utility model.
[0026] Legend:
[0027] 1. Sealing shell; 2. Fixing mechanism; 201. Fixing block; 202. Pull rod; 203. Spring one; 204. Limiting plate; 205. Pull ring; 206. Fixing hole; 3. Sealing block; 4. Shaft rod; 5. Spring two; 6. Liquid storage tank; 7. Copper tube; 8. Elastic ball; 9. Mounting groove; 10. Connecting hole; 11. Rotating drum; 12. Sealing plate; 13. Slot; 14. Mounting hole; 15. Buckle; 16. Spring three; 17. Sealing ring; 18. Fixing bolt; 19. Sealing cover; 20. Handle; 21. Anti-slip cover. DETAILED DESCRIPTION
[0028] 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.
[0029] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a mechanical seal with a self-lubricating structure, including a sealing shell 1 and a sealing cover 19, a sealing block 3 is slidably connected inside the sealing shell 1, a connecting hole 10 is provided on the top of the sealing block 3, a shaft 4 is fixedly connected inside the connecting hole 10, a spring 5 is fixedly connected inside the sealing shell 1, a liquid storage tank 6 is provided on the top of the sealing block 3, elastic balls 8 are installed inside the two liquid storage tanks 6, a mounting groove 9 is provided on the top of the sealing block 3, and a rotating drum 11 is rotatably connected to the inner wall of the connecting hole 10 The outer wall of the rotating drum 11 is fixedly connected with a sealing plate 12, the bottoms of the two sealing plates 12 are arranged inside the mounting groove 9, the left and right sides of the tops of the two sealing plates 12 are provided with a card slot 13, the top of the sealing block 3 is provided with a mounting hole 14, the insides of the two mounting holes 14 are slidably connected with a buckle 15, the bottom ends of the two buckles 15 are fixedly connected with a spring three 16, the outer wall of the sealing cover 19 is provided with a fixing mechanism 2, the bottom of the outer wall of the sealing block 3 is fixedly connected with a sealing ring 17, and the outer wall of the sealing ring 17 is arranged inside the sealing shell 1.
[0030] Specifically, a seal 3 is installed inside the sealing shell 1, and a sealing ring 17 is provided between the sealing block 3 and the sealing shell 1 to improve the sealing effect. A spring 5 is installed at the bottom of the sealing block 3, a connecting hole 10 is provided at the top of the sealing block 3, and the shaft 4 is installed through the connecting hole 10. A liquid reservoir 6 is provided inside the sealing block 3, and the lubricating liquid is poured through the liquid reservoir 6. An elastic ball 8 is installed inside the liquid reservoir 6, and the shaft 4 can be lubricated by the elastic ball 8. A mounting groove 9 is provided at the top of the liquid storage tank 6, and the rotating drum 11 and the sealing plate 12 are installed through the mounting groove 9 and the connecting hole 10. Card slots 13 are provided on both sides of the sealing plate 12, and a mounting hole 14 is provided at the top of the sealing block 3. The buckle 15 is installed through the mounting hole 14, and a spring 16 is installed at the bottom end of the buckle 15. The liquid storage tank 6 can be opened and closed by rotating the sealing plate 12, and then the buckle 15 is fixed in the card slot 13, so that the sealing plate 12 is fixed, which can facilitate the pouring of lubricating oil and avoid liquid leakage.
[0031] Reference Figure 1 and Figure 3 The fixing mechanism 2 includes two fixing blocks 201, and the adjacent sides of the two fixing blocks 201 are fixedly connected to the outer wall of the sealing cover 19. The two fixing blocks 201 are slidably connected to the opposite sides with pull rods 202. The outer walls of the two pull rods 202 are fixedly connected to limit plates 204. The opposite sides of the two limit plates 204 are fixedly connected to springs 203. The outer walls of the sealing blocks 3 are provided with fixing holes 206, and the opposite ends of the two pull rods 202 are fixedly connected to pull rings 205.
[0032] Specifically, the fixing block 201 is fixedly installed by the sealing cover 19, and pull rods 202 are installed on both sides of the fixing block 201. A limiting plate 204 is installed on the outer wall of the pull rod 202. The pull rod 202 is limited by the limiting plate 204 to avoid falling off. A spring 203 is installed on the outer wall of the pull rod 202. The spring 203 is squeezed by pulling the pull rod 202, and then the pull rod 202 is loosened to be inserted into the fixing hole 206 to complete the fixed connection of the sealing cover 19.
[0033] Reference Figure 1 and Figure 3 The outer wall of the sealing block 3 is fixedly connected with multiple copper tubes 7, the top ends of the multiple copper tubes 7 are arranged at the bottom of the sealing cover 19, the bottom of the outer wall of the sealing shell 1 is threadedly connected with multiple fixing bolts 18, the top of the sealing cover 19 is fixedly connected with handles 20, and the outer walls of the two handles 20 are fixedly connected with anti-slip sleeves 21.
[0034] Specifically, a plurality of copper tubes 7 are fixed on the outer wall of the sealing block 3 , and the copper tubes 7 have good heat absorption and heat dissipation effects. A plurality of fixing bolts 18 are installed on the outer wall of the sealing shell 1 , and the fixing bolts 18 can improve the sealing firmness of the sealing shell 1 to the shaft 4 .
[0035] Working principle: First, when placing the lubricating oil, a seal 3 is installed inside the sealing shell 1, and a sealing ring 17 is used between the sealing block 3 and the sealing shell 1 to improve the sealing effect. A spring 5 is installed at the bottom of the sealing block 3, and a connecting hole 10 is opened at the top of the sealing block 3. The shaft 4 is installed through the connecting hole 10. A liquid reservoir 6 is opened inside the sealing block 3, and the lubricating liquid is poured through the liquid reservoir 6. An elastic ball 8 is installed inside the liquid reservoir 6, and the shaft 4 can be lubricated by the elastic ball 8. A mounting groove 9 is provided at the top of the liquid storage tank 6, and the rotating drum 11 and the sealing plate 12 are installed through the mounting groove 9 and the connecting hole 10. A card slot 13 is provided on both sides of the sealing plate 12, and a mounting hole 14 is provided at the top of the sealing block 3. The buckle 15 is installed through the mounting hole 14, and a spring 16 is installed at the bottom end of the buckle 15. The liquid storage tank 6 can be opened and closed by rotating the sealing plate 12, and then the buckle 15 is fixed in the card slot 13, so that the sealing plate 12 is fixed, which can facilitate the pouring of lubricating oil and avoid the leakage. In the event of liquid leakage, and when the sealing cover 19 is disassembled, the fixing block 201 is fixedly installed through the sealing cover 19, and pull rods 202 are installed on both sides of the fixing block 201, and a limiting plate 204 is installed on the outer wall of the pull rod 202. The pull rod 202 is limited by the limiting plate 204 to avoid falling off, and a spring 203 is installed on the outer wall of the pull rod 202. The pull rod 202 is pulled to drive the spring 203 to be squeezed, and then the pull rod 202 is loosened to be inserted into the fixing hole 206 to complete the fixed connection of the sealing cover 19.
[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A mechanical seal with a self-lubricating structure, comprising a sealing shell (1) and a sealing cover (19), characterized in that: The sealing shell (1) is slidably connected to a sealing block (3) at the top of the sealing block (3), a connecting hole (10) is provided at the inside of the connecting hole (10), a shaft (4) is fixedly connected at the inside of the sealing shell (1), a spring (5) is fixedly connected at the inside of the sealing shell (1), a liquid storage tank (6) is provided at the top of each sealing block (3), elastic balls (8) are installed at the inside of the two liquid storage tanks (6), a mounting groove (9) is provided at the top of each sealing block (3), and a rotating drum (11) is rotatably connected to the inner wall of the connecting hole (10). The outer wall of the rotating drum (11) is fixedly connected with a sealing plate (12), the bottoms of the two sealing plates (12) are arranged inside the mounting groove (9), the left and right sides of the tops of the two sealing plates (12) are provided with a clamping groove (13), the top of the sealing block (3) is provided with a mounting hole (14), the insides of the two mounting holes (14) are slidably connected with a buckle (15), the bottom ends of the two buckles (15) are fixedly connected with a spring three (16), and the outer wall of the sealing cover (19) is provided with a fixing mechanism (2).
2. A mechanical seal with a self-lubricating structure according to claim 1, characterized in that: The fixing mechanism (2) comprises two fixing blocks (201), the adjacent sides of the two fixing blocks (201) are fixedly connected to the outer wall of the sealing cover (19), the distant sides of the two fixing blocks (201) are slidably connected to a pull rod (202), the outer walls of the two pull rods (202) are fixedly connected to a limiting plate (204), the distant sides of the two limiting plates (204) are fixedly connected to a spring 1 (203), and the outer walls of the sealing blocks (3) are provided with fixing holes (206).
3. A mechanical seal with a self-lubricating structure according to claim 2, characterized in that: The ends of the two pull rods (202) that are away from each other are both fixedly connected with pull rings (205).
4. The mechanical seal with a self-lubricating structure according to claim 1, characterized in that: A sealing ring (17) is fixedly connected to the bottom of the outer wall of the sealing block (3), and the outer wall of the sealing ring (17) is arranged inside the sealing shell (1).
5. The mechanical seal with a self-lubricating structure according to claim 1, characterized in that: The outer wall of the sealing block (3) is fixedly connected to a plurality of copper tubes (7), and the top ends of the plurality of copper tubes (7) are arranged at the bottom of the sealing cover (19).
6. The mechanical seal with a self-lubricating structure according to claim 1, characterized in that: The bottom of the outer wall of the sealing shell (1) is threadedly connected with a plurality of fixing bolts (18).
7. The mechanical seal with a self-lubricating structure according to claim 1, characterized in that: The top of the sealing cover (19) is fixedly connected with a handle (20).
8. The mechanical seal with a self-lubricating structure according to claim 7, characterized in that: The outer walls of the two handles (20) are both fixedly connected with anti-slip sleeves (21).