Rotating shaft sealing assembly with self-lubricating structure

By designing a self-lubricating rotary shaft seal assembly, the friction problem between the seal and the shaft is solved, achieving effective circulation and sealing of lubricating oil, and improving the operating efficiency and service life of the equipment.

CN223854848UActive Publication Date: 2026-01-30黄虎
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Patent Information

Application Number
CN202520482267.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-01-30
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

In traditional shaft seal assemblies, friction between the seal and the shaft is unavoidable during operation, and the lack of effective lubrication leads to accelerated wear.

Method used

A rotary shaft sealing assembly with a self-lubricating structure was designed, including a lubrication component and a leak-proof component. The rotating ring of the lubrication component drives the extrusion block to squeeze the sliding rod, allowing lubricating oil to enter the device. Combined with the compression of the sealing ring, the lubricating oil is tightly fitted, ensuring normal circulation of the lubricating oil in the system.

Benefits of technology

It reduces the coefficient of friction, decreases energy loss, improves equipment operating efficiency, extends the service life of the device, and prevents lubricating oil leakage from affecting the normal operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rotating shaft lubrication, and discloses a rotating shaft sealing assembly with a self-lubricating structure, which comprises a shell, the surface of the shell is fixedly connected with a lubricating assembly, and the interior of the shell is fixedly connected with a sealing assembly. According to the rotating shaft sealing assembly with the self-lubricating structure, through the arrangement of the lubricating assembly, when the rotating shaft sealing assembly is used, a first rotating ring can rotate, the first rotating ring drives an extrusion block to rotate when rotating, the extrusion block rotates to extrude a sliding rod, so that the sliding rod moves, and the sliding rod moves to drive a plug block to move; and the plug block moves to enable lubricating oil and the like in the oil storage tank to enter the device along the connecting pipe to lubricate the first rotating ring and the like, so that the friction coefficient can be reduced, the energy loss can be reduced, the operation efficiency of the equipment can be improved, meanwhile, the friction between the devices can be reduced, and the service life of the device is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rotating shaft lubrication technical field especially, relate to a kind of rotating shaft sealing assembly with self-lubricating structure. BACKGROUND

[0002] In various mechanical equipment, shaft seal plays a vital role. Whether in the pump, compressor, speed reducer in industrial production, or in automobile engine, aero-engine and other power equipment, shaft seal is the key component to ensure the normal operation of equipment. It mainly undertakes two important functions: one is to prevent the leakage of internal medium (such as liquid, gas, etc.) of equipment, to avoid causing resource waste, environmental pollution and harm to the environment and personnel around the equipment; the second is to prevent the invasion of dust, moisture, impurities and other external into the equipment, to prevent these foreign matters from causing wear, corrosion and other adverse effects to the internal parts of the equipment, so as to ensure the cleanliness and good working environment of the equipment, and prolong the service life of the equipment.

[0003] In the running process of the traditional shaft sealing assembly, the friction between the sealing element and the shaft is inevitable. If effective lubrication measures are lacking, the friction between the sealing element and the shaft surface will increase continuously with the continuous operation of the equipment, causing accelerated wear of the sealing element and the shaft. Therefore, a rotating shaft sealing assembly with self-lubricating structure is proposed. SUMMARY

[0004] The technical problem solved by the utility model is to provide a rotating shaft sealing assembly with self-lubricating structure, which has high practicality and can be operated simply, and has a simple structure. The problem of accelerated wear of the sealing element and the shaft caused by the continuous increase of friction between the sealing element and the shaft surface with the continuous operation of the equipment is solved.

[0005] To achieve the above purpose, the utility model is implemented by the following technical scheme: a rotating shaft sealing assembly with self-lubricating structure, comprising an outer shell, a lubricating assembly fixedly connected to the surface of the outer shell, a leak-proof assembly fixedly connected to the inside of the outer shell, a second sealing ring lap-connected to the bottom of the sealing assembly, a plurality of groups of screw holes provided on the surface of the outer shell, a plurality of groups of installation bolts threadedly connected to the inside of the screw holes, the lubricating assembly comprising an oil tank fixedly connected to the surface of the outer shell, a sliding rod slidingly connected to the inside of the oil tank, a plug fixedly connected to one end of the sliding rod, and a connecting spring sleeved on the outside of the sliding rod; the leak-proof assembly comprises a first sealing ring fixedly connected to the inside of the outer shell, and a connecting pipe fixedly connected to one side of the first sealing ring.

[0006] As a further scheme of the utility model, the other end of the connecting spring is fixedly connected to the inside of the first sealing ring, and the sliding rod is slidingly connected to the inside of the connecting pipe.

[0007] As a further scheme of the utility model, the inside of the shell is fixedly connected with a first fixed ring, and the surface of the first fixed ring is lap-jointedly connected with a first rotating ring, and the first rotating ring is arranged to enable the device to rotate.

[0008] As a further scheme of the utility model, the outside of the first rotating ring is fixedly connected with an extrusion block, and the inside of the first rotating ring is provided with a rubber ring, and the rubber ring is arranged to contact with external pipelines.

[0009] As a further scheme of the utility model, the outside of the rubber ring is lap-jointedly connected with a fixed ring, and the outside of the rubber ring is lap-jointedly connected with a second rotating ring, and the fixed ring is arranged to fix the rubber ring.

[0010] As a further scheme of the utility model, the surface of the second rotating ring is fixedly connected with four groups of mounting springs, the bottom surface of the second rotating ring is lap-jointedly connected with a second fixed ring, and the bottom surface of the second fixed ring is fixedly connected with a bottom cover, and the bottom cover is arranged to connect with the shell.

[0011] As a further scheme of the utility model, the surface of the oil storage tank is fixedly connected with an oil inlet pipe, and the outside of the oil inlet pipe is screwedly connected with a sealing cover, and the sealing cover is arranged to prevent lubricating oil from leaking out of the oil inlet pipe.

[0012] The utility model provides a rotary shaft sealing assembly with self -lubricating structure has the following beneficial effects:

[0013] 1、the rotary shaft sealing assembly with self -lubricating structure, through the setting of lubricating assembly, when the device is used, the first rotating ring will rotate, and the extrusion block is driven to rotate when the first rotating ring rotates, and the extrusion block is extruded to the sliding rod and moves, and the sliding rod moves and drives the plug to move, and the plug moves and makes the lubricating oil in the oil storage tank enter the inside of the device along the connecting pipe, and lubricates the first rotating ring, thereby can reduce the friction coefficient, reduce energy loss, improve the operation efficiency of equipment, and also can reduce the friction between devices, thereby increasing the service life of the device.

[0014] 2、The rotating shaft sealing assembly with self-lubricating structure, through the setting of the leakage prevention assembly and the second sealing ring, when sealing, the first sealing ring and the second sealing ring are extruded to tightly adhere, the first sealing ring and the second sealing ring cooperate to avoid the leakage of lubricating oil from the interface between the shell and the bottom cover, ensure the normal circulation and use of lubricating oil in the system, avoid the lubricating oil leakage to cause the insufficient lubrication of equipment and affect the normal operation of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the whole structure schematic view of the utility model;

[0016] Fig. 2 It is the sealing assembly structure schematic view of the utility model;

[0017] Fig. 3 It is the rubber ring structure schematic view of the utility model;

[0018] Fig. 4 It is the lubricating assembly structure schematic view of the utility model.

[0019] In the drawing: 1, shell;2, lubricating assembly;201, oil storage tank;202, sliding rod;203, plug;204, connecting spring;3, leakage prevention assembly;301, first sealing ring;302, connecting pipe;4, second sealing ring;5, first fixed ring;6, first rotating ring;7, extrusion block;8, rubber ring;9, fixed ring;10, second rotating ring;11, mounting spring;12, second fixed ring;13, bottom cover;14, mounting bolt;15, oil inlet pipe;16, sealing cover. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figs. 1 to 4The utility model provides a technical scheme: a rotary shaft sealing assembly with self -lubricating structure, including the shell 1, the surface fixed connection of shell 1 has lubricating assembly 2, through the setting of lubricating assembly 2, make the device can lubricate internal parts to guarantee the use efficiency of device, the inside fixed connection of shell 1 has the leakage prevention component 3, through the setting of leakage prevention component 3, can avoid lubricating oil etc. and thus interface leaks, the bottom lap joint of leakage prevention component 3 has the second sealing ring 4, the surface of shell 1 is set up with several groups of screw holes, the inside all screw thread connection of several groups of screw holes has installation bolt 14, lubricating assembly 2 includes the fixed connection of the oil tank 201 on the surface of shell 1, the inside slide connection of oil tank 201 has sliding rod 202, one end of sliding rod 202 is fixedly connected with plug block 203, and the outside of sliding rod 202 is sleeved with connecting spring 204;The leakage prevention component 3 includes the first sealing ring 301 fixedly connected in the inside of shell 1, and the side fixed connection of first sealing ring 301 has connecting pipe 302;

[0022] The other end of connecting spring 204 is fixedly connected to the inside of first sealing ring 301, and sliding rod 202 is slidably connected to the inside of connecting pipe 302, and the setting of connecting pipe 302 plays the role of allowing lubricating oil to enter the inside of the device.

[0023] The inside of shell 1 is fixedly connected with a first fixed ring 5, and the surface of first fixed ring 5 is lap jointed with a first rotating ring 6, and the setting of first rotating ring 6 plays the role of allowing the device to rotate.

[0024] The outside of first rotating ring 6 is fixedly connected with an extrusion block 7, and the inside of first rotating ring 6 is provided with a rubber ring 8, and the setting of rubber ring 8 plays the role of contacting with external pipelines.

[0025] The outside of rubber ring 8 is lap jointed with a fixed ring 9, and the outside of rubber ring 8 is lap jointed with a second rotating ring 10, and the setting of fixed ring 9 plays the role of fixing rubber ring 8.

[0026] The surface of second rotating ring 10 is fixedly connected with four groups of mounting springs 11, the bottom surface of second rotating ring 10 is lap jointed with a second fixed ring 12, and the bottom surface of second fixed ring 12 is fixedly connected with a bottom cover 13, and the setting of bottom cover 13 plays the role of connecting with shell 1.

[0027] The surface of oil tank 201 is fixedly connected with an oil inlet pipe 15, and the outside of oil inlet pipe 15 is screw-connected with a sealing cover 16, and the setting of sealing cover 16 plays the role of avoiding leakage of lubricating oil from oil inlet pipe 15.

[0028] In the utility model, the working steps of the device are as follows:

[0029] The first step: when the device is in use, the first rotating ring 6 rotates, and the first rotating ring 6 drives the extrusion block 7 to rotate, the extrusion block 7 rotates to extrude the sliding rod 202, so that the sliding rod 202 moves, the sliding rod 202 drives the plug block 203 to move, and the plug block 203 moves to make the lubricating oil in the oil storage tank 201 enter the inside of the device along the connecting pipe 302, and lubricate the first rotating ring 6 and the like.

[0030] The second step: when sealing, the first sealing ring 301 and the second sealing ring 4 are extruded to tightly fit, the first sealing ring 301 and the second sealing ring 4 cooperate to prevent the lubricating oil from leaking from the interface between the shell 1 and the bottom cover 13, and ensure the normal circulation and use of the lubricating oil in the system.

[0031] It should be noted that the device structure and the drawings mainly describe the principle of the utility model, and the power mechanism, the power supply system and the control system of the device are not completely described, and the power mechanism, the power supply system and the control system can be clearly known under the premise that the above-mentioned principles of the utility model are understood by the person skilled in the art, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art.

[0032] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional screw, rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, the structure and principle are known by the person skilled in the art through the technical manual or through the conventional experimental method.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A rotating shaft seal assembly with self-lubricating structure comprising a housing (1), characterized in that: The surface of the shell (1) is fixedly connected with a lubricating assembly (2), the inside of the shell (1) is fixedly connected with a leakage-proof assembly (3), the bottom of the leakage-proof assembly (3) is overlap-connected with a second sealing ring (4), the surface of the shell (1) is provided with a plurality of groups of screw holes, the inside of each group of screw holes is threadedly connected with a mounting bolt (14), The lubricating assembly (2) comprises an oil storage tank (201) fixedly connected to the surface of the shell (1), the inside of the oil storage tank (201) is slidably connected with a sliding rod (202), one end of the sliding rod (202) is fixedly connected with a plug (203), the outside of the sliding rod (202) is sleeved with a connecting spring (204); The leakage-proof assembly (3) comprises a first sealing ring (301) fixedly connected to the inside of the shell (1), one side of the first sealing ring (301) is fixedly connected with a connecting pipe (302).

2. A rotary shaft seal assembly with self-lubricating features as defined in claim 1, wherein: The other end of the connecting spring (204) is fixedly connected to the inside of the first sealing ring (301), and the sliding rod (202) is slidably connected to the inside of the connecting pipe (302).

3. A rotary shaft seal assembly with self-lubricating features as defined in claim 1, wherein: The inside of the shell (1) is fixedly connected with a first fixed ring (5), and the surface of the first fixed ring (5) is overlap-connected with a first rotating ring (6).

4. A rotary shaft seal assembly with self-lubricating features as defined in claim 3, wherein: The outside of the first rotating ring (6) is fixedly connected with an extrusion block (7), and the inside of the first rotating ring (6) is provided with a rubber ring (8).

5. A rotary shaft seal assembly with self-lubricating features as defined in claim 4, wherein: The outside of the rubber ring (8) is overlap-connected with a fixed ring (9), and the outside of the rubber ring (8) is overlap-connected with a second rotating ring (10).

6. A rotary shaft seal assembly with self-lubricating features as claimed in claim 5, wherein: The surface of the second rotating ring (10) is fixedly connected with four groups of mounting springs (11), the bottom surface of the second rotating ring (10) is overlap-connected with a second fixed ring (12), and the bottom surface of the second fixed ring (12) is fixedly connected with a bottom cover (13).

7. A rotary shaft seal assembly with self-lubricating features as described in claim 1, wherein: The surface of the oil storage tank (201) is fixedly connected with an oil inlet pipe (15), and the outside of the oil inlet pipe (15) is threadedly connected with a sealing cover (16).