A shaft seal structure capable of storing lubricating grease

Abstract

The utility model is suitable for shaft seal technical field provides a kind of shaft seal structure that can store lubricating grease, including stator;Rotary sleeve is set in the rotor outside the stator, the rotor is equipped with the shell for protecting the rotor;Perforation for providing lubricating oil adding channel is set on the shell;Sleeve is set in the shell outside for storing solid lubricating oil sleeve;It is located in the sleeve tradition for providing solid lubricating oil replenishment channel's replenishment port;It is installed on the sleeve for closing the closure structure of replenishment port.The shaft seal structure that can store lubricating grease provided in the scheme sets stator, rotor, shell, perforation, sleeve, replenishment port and closure structure, can realize the sealed storage and automatic addition of lubricating grease, avoid shaft seal dry rotation while reducing manual labor intensity.

Description

Technical Field

[0001] This utility model belongs to the field of shaft seal technology, and in particular relates to a shaft seal structure that can store lubricating grease. Background Technology

[0002] A shaft seal is a mechanical seal used to prevent fluid (liquid or gas) from leaking from the gap between a rotating shaft and a stationary component, while also preventing external impurities from entering the equipment. It is widely used in various rotating machinery, such as pumps, compressors, turbines, and agitators, and is a key component for ensuring normal operation and extending the service life of equipment.

[0003] Existing shaft seals lack a corresponding structure for replenishing lubricating oil, relying heavily on manual application of lubricating oil during use. This results in frequent maintenance, and failure to replenish lubricating oil in a timely manner can lead to dry running of the shaft seal, affecting its service life. Utility Model Content

[0004] This utility model provides a shaft seal structure that can store lubricating grease, aiming to solve the problem mentioned in the background art that the existing shaft seals do not have a corresponding structure for replenishing lubricating oil, and rely on manual application of lubricating oil during use, resulting in high maintenance frequency. Failure to replenish lubricating oil in time will cause the shaft seal to run dry, affecting its service life.

[0005] To solve the above problems, this utility model is implemented as follows: a shaft seal structure for storing lubricating grease, comprising: a stator; a rotor rotatably sleeved outside the stator, the rotor having a housing for protecting the rotor; a through hole provided on the housing for providing a lubricating oil adding channel; a sleeve sleeved outside the housing for storing solid lubricating oil; a filling port provided on the sleeve for providing a solid lubricating oil replenishment channel; and a sealing structure installed on the sleeve for closing the filling port.

[0006] Preferably, the closure structure includes a retaining ring fixed to the outer wall of the sleeve, a cover plate that is engaged in the retaining ring and covers the outside of the feed port, and a fixing bolt threaded onto the retaining ring and threadedly connected to the cover plate.

[0007] Preferably, a connecting shaft is installed on the side of the stator and the rotor that are far apart from each other, a flange is fixed on each of the two connecting shafts, an isolation plate is fixed on the stator, and a silicone pad is installed on the isolation plate.

[0008] Preferably, a mounting plate is installed at the bottom of the sleeve, and a cooling chamber for assisting shaft seal cooling is provided between the mounting plate and the outer shell. The cooling chamber is provided with a material guiding structure for guiding the cooling medium in and out.

[0009] Preferably, the material guiding structure includes two connecting pipes fixed to the bottom of the mounting plate, threaded cylinders respectively installed at the bottom of the two connecting pipes, threaded blocks threaded inside the threaded cylinders, and inlet pipes and outlet pipes respectively fixed to the two threaded blocks. The inlet pipes and outlet pipes are used to guide the input and output of the cooling medium, respectively.

[0010] Preferably, the bottom of the cover plate is fixed with a sealing gasket that contacts the outer wall of the outer shell to prevent solid lubricating oil from melting and leaking, and both sides of the sleeve are fixed with side baffles for sealing the solid lubricating oil storage space and the cooling chamber.

[0011] Preferably, both of the threaded cylinders are fitted with anti-slip sleeves to increase grip friction, the threaded block is provided with an opening to provide a channel for the flow of cooling medium, the outer shell is made of metal and is coated with an anti-corrosion coating.

[0012] Preferably, the side baffle is provided with an observation window for indicating the remaining amount of solid lubricating oil, and the retaining ring is provided with a notch for accommodating the fixing bolt to maintain the flatness of the retaining ring surface.

[0013] Compared with related technologies, the shaft seal structure for storing lubricating grease provided by this utility model has the following advantages: Compared with existing technologies, the shaft seal structure for storing lubricating grease provided in this solution, through the setting of stator, rotor, housing, through hole, sleeve, filling port and sealing structure, can realize the sealed storage and automatic addition of lubricating grease, avoid dry running of shaft seal and reduce manual labor intensity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a shaft seal structure that can store lubricating grease, provided by this utility model; Figure 2 This is a side sectional view of the sleeve in this utility model. Figure 3 This is a schematic diagram of the assembly structure of the connecting pipe and the liquid inlet pipe in this utility model; Figure 4 This is a side view of the side baffle structure in this utility model.

[0015] Reference numerals in the attached diagram: 1. Stator; 2. Rotor; 3. Housing; 4. Through hole; 5. Sleeve; 6. Feed port; 7. Cover plate; 8. Sealing gasket; 9. Snap ring; 10. Fixing bolt; 11. Connecting shaft; 12. Flange; 13. Isolation plate; 14. Silicone gasket; 15. Mounting plate; 16. Cooling chamber; 17. Connecting pipe; 18. Threaded cylinder; 19. Threaded block; 20. Liquid inlet pipe; 21. Side baffle. Detailed Implementation

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0018] This utility model embodiment provides a shaft seal structure capable of storing lubricating grease, such as... Figure 1-4 As shown, the shaft seal structure for storing lubricating grease includes: a stator 1; a rotor 2 rotatably sleeved outside the stator 1, the rotor 2 having a housing 3 for protecting the rotor 2; a through hole 4 provided on the housing 3 for providing a lubricating oil adding channel; a sleeve 5 sleeved outside the housing 3 for storing solid lubricating oil; a filling port 6 provided on the sleeve 5 for providing a solid lubricating oil replenishment channel; and a sealing structure installed on the sleeve 5 for closing the filling port 6.

[0019] In this embodiment, by setting the through hole 4, a channel for adding lubricating oil is provided, making it more convenient to add lubricating oil and reducing maintenance difficulty. By setting the sleeve 5, solid lubricating oil is stored, which can automatically replenish the lubricating grease to the shaft seal, avoiding the situation where the shaft seal runs dry due to failure to replenish lubricating oil in time, and effectively extending the service life of the shaft seal. By setting the filling port 6 and the sealing structure, when the lubricating grease in the sleeve 5 is insufficient, new solid lubricating oil can be easily added through the filling port 6. After adding, the filling port 6 can be sealed with the sealing structure to prevent lubricating grease leakage and ensure the stable operation of the shaft seal structure.

[0020] In a further preferred embodiment of the present invention, the sealing structure includes a retaining ring 9 fixed on the outer wall of the sleeve 5, a cover plate 7 that is engaged in the retaining ring 9 and covers the outside of the feed port 6, and a fixing bolt 10 that is threadedly mounted on the retaining ring 9 and threadedly connected to the cover plate 7.

[0021] In this embodiment, the retaining ring 9 provides a stable installation position for the cover plate 7, allowing it to cover the material filling port 6 and prevent lubricating grease leakage. By setting the cover plate 7, the material filling port 6 is sealed, effectively preventing external impurities from entering the sleeve 5 and avoiding contamination of the lubricating grease. By setting the fixing bolt 10 and threading it onto the retaining ring 9 and connecting it to the cover plate 7, the cover plate 7 can be firmly fixed inside the retaining ring 9, enhancing the stability of the closed structure.

[0022] In a further preferred embodiment of the present invention, a connecting shaft 11 is installed on the side of the stator 1 and the rotor 2 that are far apart from each other, a flange 12 is fixed on both connecting shafts 11, an isolation plate 13 is fixed on the stator 1, and a silicone pad 14 is installed on the isolation plate 13.

[0023] In this embodiment, by setting a connecting shaft 11 and fixing a flange 12 on it, the effect of facilitating a stable connection between the shaft seal and external equipment is achieved, so that the stator 1 and rotor 2 can be reliably assembled with different equipment through the connecting shaft 11, thereby enhancing the versatility and adaptability of the device. By fixing an isolation plate 13 on the stator 1, the internal structure is separated and protected, which can ensure the stability of the device when installed on equipment with a protective shell.

[0024] In a further preferred embodiment of the present invention, an mounting plate 15 is installed at the bottom of the sleeve 5, and a cooling chamber 16 for assisting in cooling the shaft seal is provided between the mounting plate 15 and the outer shell 3. The cooling chamber 16 is provided with a material guiding structure for guiding the cooling medium in and out.

[0025] In this embodiment, the mounting plate 15 installed at the bottom of the sleeve 5 serves to separate the space. The cooling chamber 16 is set up to achieve the purpose of auxiliary shaft seal cooling, which can effectively reduce the heat generated by the shaft seal during operation, prevent the shaft seal performance from deteriorating or being damaged due to excessive temperature, and extend the service life of the shaft seal. By setting a material guiding structure on the cooling chamber 16, the cooling medium can smoothly enter and exit the cooling chamber 16 to form a circulating cooling, which improves the cooling efficiency, ensures that the shaft seal is always at a suitable working temperature, and improves the stability and reliability of the shaft seal operation.

[0026] In a further preferred embodiment of the present invention, the material guiding structure includes two connecting pipes 17 fixed to the bottom of the mounting plate 15, threaded cylinders 18 respectively installed at the bottom of the two connecting pipes 17, threaded blocks 19 threadedly installed in the threaded cylinders 18, and liquid inlet pipes 20 and liquid outlet pipes respectively fixed on the two threaded blocks 19. The liquid inlet pipes 20 and the liquid outlet pipes are used to guide the input and output of the cooling medium, respectively.

[0027] In this embodiment, the connecting pipe 17 serves to securely connect the mounting plate 15 to subsequent components. The threaded cylinder 18 and threaded block 19 facilitate the installation and disassembly of the inlet pipe 20 and the outlet pipe, making it easier to maintain and clean the material guiding structure. The inlet pipe 20 and the outlet pipe guide the cooling medium in and out respectively, forming a complete cooling circulation channel that can continuously provide cooling medium to the cooling chamber 16, effectively removing the heat generated by the shaft seal operation and achieving a good cooling effect.

[0028] In a further preferred embodiment of the present invention, a sealing gasket 8 is fixed at the bottom of the cover plate 7 to contact the outer wall of the outer shell 3 for preventing solid lubricating oil from melting and leaking, and side baffles 21 are fixed on both sides of the sleeve 5 for sealing the solid lubricating oil storage space and the cooling chamber 16.

[0029] In this embodiment, by fixing the sealing gasket 8 at the bottom of the cover plate 7 and making it contact the outer wall of the outer shell 3, a good sealing effect is achieved, which effectively prevents the solid lubricating oil in the sleeve 5 from leaking after melting due to heat, avoids the waste of lubricating oil and pollution of other parts of the equipment, and ensures the normal operation of the shaft seal structure. By fixing the side baffles 21 on both sides of the sleeve 5, the solid lubricating oil storage space is sealed on the one hand to prevent the lubricating oil from overflowing from the side and ensure the stable storage of the lubricating oil. On the other hand, the cooling chamber 16 is also sealed to prevent the leakage of cooling medium and maintain the cooling effect of the cooling chamber 16.

[0030] In a further preferred embodiment of the present invention, the outer walls of the two threaded cylinders 18 are fitted with anti-slip sleeves to increase grip friction, the threaded block 19 is provided with an opening for providing a channel for the flow of cooling medium, the outer shell 3 is made of metal and is coated with an anti-corrosion coating.

[0031] In this embodiment, by providing an anti-slip sleeve on the outer wall of the threaded cylinder 18, the grip friction is increased, allowing the operator to grip the threaded cylinder 18 more firmly when installing or removing the threaded block 19, avoiding slippage and improving the ease and safety of operation. By providing an opening on the threaded block 19, a channel for the flow of cooling medium is provided, ensuring that the cooling medium can circulate smoothly between the inlet pipe 20, the outlet pipe and the cooling chamber 16, thus enhancing the cooling effect. The metal material has a high heat exchange efficiency, which further increases the cooling effect.

[0032] In a further preferred embodiment of the present invention, the side baffle 21 is provided with an observation window for indicating the remaining amount of solid lubricating oil, and the retaining ring 9 is provided with a notch for accommodating the fixing bolt 10 to maintain the flatness of the surface of the retaining ring 9.

[0033] In this embodiment, by setting an observation window on the side baffle 21, the remaining amount of solid lubricating oil can be conveniently and intuitively viewed, which facilitates timely replenishment when the oil level is insufficient, avoids dry rotation of the shaft seal due to lack of lubricating oil, and effectively extends the service life of the shaft seal. By setting a notch on the retaining ring 9 to accommodate the fixing bolt 10, the surface flatness of the retaining ring 9 is maintained, reducing the risk of scratching caused by the protrusion of the fixing bolt 10.

[0034] In summary, compared with related technologies, this device, by setting up a stator 1, rotor 2, outer shell 3, through hole 4, sleeve 5, feeding port 6 and a closed structure, can realize the sealed storage and automatic addition of lubricating grease, avoid dry rotation of shaft seal and reduce manual labor intensity.

[0035] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A shaft seal structure capable of storing lubricating grease, characterized in that, include: stator; A rotor is rotatably mounted outside the stator, and the rotor is provided with a housing for protecting the rotor; A through hole is provided on the housing to provide a channel for adding lubricating oil; A sleeve fitted over the outer casing for storing solid lubricating oil; The sleeve is designed to provide a filling port for supplying solid lubricating oil. A sealing structure installed on the sleeve to close the feed inlet.

2. The shaft seal structure for storing lubricating grease as described in claim 1, characterized in that, The enclosed structure includes a retaining ring fixed to the outer wall of the sleeve, a cover plate that is engaged within the retaining ring and covers the outside of the feed port, and a fixing bolt threaded onto the retaining ring and threadedly connected to the cover plate.

3. The shaft seal structure for storing lubricating grease as described in claim 1, characterized in that, A connecting shaft is installed on the side of the stator and the rotor that are far apart from each other. A flange is fixed on each of the two connecting shafts. An isolation plate is fixed on the stator, and a silicone pad is installed on the isolation plate.

4. The shaft seal structure for storing lubricating grease as described in claim 1, characterized in that, A mounting plate is installed at the bottom of the sleeve, and a cooling chamber for auxiliary shaft seal cooling is provided between the mounting plate and the outer shell. The cooling chamber is provided with a material guiding structure for guiding the cooling medium in and out.

5. The shaft seal structure for storing lubricating grease as described in claim 4, characterized in that, The material guiding structure includes two connecting pipes fixed to the bottom of the mounting plate, threaded cylinders respectively installed at the bottom of the two connecting pipes, threaded blocks threaded inside the threaded cylinders, and inlet pipes and outlet pipes respectively fixed on the two threaded blocks. The inlet pipes and outlet pipes are used to guide the input and output of the cooling medium, respectively.

6. The shaft seal structure for storing lubricating grease as described in claim 2, characterized in that, The bottom of the cover plate is fixed with a sealing gasket that contacts the outer wall of the outer shell to prevent solid lubricating oil from melting and leaking. Both sides of the sleeve are fixed with side baffles to seal the solid lubricating oil storage space and the cooling chamber.

7. The shaft seal structure for storing lubricating grease as described in claim 5, characterized in that, Both of the threaded cylinders are fitted with anti-slip sleeves to increase grip friction on their outer walls. The threaded block is provided with an opening to provide a channel for the flow of cooling medium. The outer shell is made of metal and is coated with an anti-corrosion coating.

8. The shaft seal structure for storing lubricating grease as described in claim 6, characterized in that, The side baffle is provided with an observation window for indicating the remaining amount of solid lubricating oil, and the retaining ring is provided with a notch for accommodating the fixing bolt to maintain the flatness of the retaining ring surface.

Images