Thin oil vibration exciter based on mechanical seal
By employing a thin oil vibrator with a mechanical seal, the mechanical seal structure utilizes centrifugal force to automatically compensate for wear on the sealing surface, thus solving the problem of lubricating oil leakage and extending the service life of the bearing.
Patent Information
- Application Number
- CN202520143676.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-15
AI Technical Summary
The lubricating oil in existing thin oil vibrators is prone to leakage, which leads to reduced service life, poor sealing performance, and affects the service life of components such as bearings.
The mechanical seal structure consists of dynamic and static sealing rings and an elastic ring. The ferrule on the intermediate shaft shoulder uses centrifugal force to automatically compensate for wear on the sealing surface and ensure effective supply of lubricating oil.
It achieves the lubrication effect of thin oil vibrator, prevents the problem of automatic compensation for sealing failure in simple structure, solves the problem of oil leakage in existing technology, ensures simple structure, effectively solves the problem of automatic compensation for wear of sealing surface, ensures structural sealing performance, and extends the service life of bearing.
Smart Images
Figure CN223690322U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of vibrating mechanical equipment, and particularly to a dilute oil exciter based on mechanical seal. BACKGROUND
[0002] The exciter is a device attached to some machines and equipment to generate exciting force. The lubrication and sealing performance of the exciter is directly related to its service life and reliability. Good lubrication can reduce friction and wear, and improve the operating efficiency of the equipment. The sealing performance directly affects the service life of the bearing and other components. Some exciters use traditional oil seal and oil spoon structure dilute oil lubrication mode, which is easy to cause lubricating oil leakage after long time use, and reduces the service life of the exciter. SUMMARY
[0003] In order to solve the above problems, the utility model provides a dilute oil exciter based on mechanical seal.
[0004] The technical scheme adopted by the utility model is:
[0005] The mechanical seal-based thin oil exciter comprises a shaft, an eccentric block, a box, bearings, end covers, a dynamic ring, a static ring, O-shaped sealing rings, pin shafts, springs I, fixed rings I, oil scoops, guide rods, springs II, fixed rings II, input end connectors, output end connectors and pressing plates; the box is provided with an oil inlet channel and an oil return channel; the eccentric block, the bearings, the end covers and the pressing plates are each two; the middle shaft shoulder of the shaft is provided with the fixed ring I; the fixed ring I is radially provided with a plurality of guide rods, the guide rods are each sleeved with the spring II, the front end of the guide rod is provided with the oil scoop, the oil scoop can be radially elongated under the action of centrifugal force when the shaft rotates and can be automatically retracted after the shaft stops rotating; the two bearings are installed on the two side shaft shoulders of the shaft; the two bearings are matched with the inner hole of the box; the dynamic ring and the static ring are sequentially installed on the outer side shaft shoulder of the shaft, the pin shaft is installed in the groove of the static ring, the spring I is sleeved on the pin shaft, and an axial mechanical seal is formed; the side surface of the end cover is provided with a labyrinth groove and an inner hole groove; the O-shaped sealing ring is installed in the inner hole groove of the end cover; the two end covers are respectively sleeved on the two side shaft necks of the shaft and are fixed on the box through screws, the inner ring of the O-shaped sealing ring is tightly matched with the outer ring of the static ring, the pin shaft and the spring I are simultaneously compressed, the inner side of the eccentric block is provided with a boss, the two eccentric blocks are respectively sleeved on the shaft, the boss of the eccentric block is matched with the labyrinth groove, and the two pressing plates are respectively pressed on the eccentric blocks and fix the two end surfaces of the shaft through screws; the input end connector is fixed with one of the eccentric blocks through a screw; the output end connector is fixed with the other one of the eccentric blocks through a screw; and the box is fixed on the fixed ring II through a bolt.
[0006] The mechanical seal-based thin oil exciter has the advantages that the mechanical seal-based thin oil excitter relies on the exciter mechanical seal structure composed of the dynamic and static sealing rings and the compression spring arranged in the shaft and the end cover, the middle shaft shoulder is provided with the oil throwing ring which can be stretched and retracted under the action of centrifugal force, the thin oil in the box can be continuously provided on the rolling bearing in the box in the working state of the exciter, and the bearing can be well lubricated. BRIEF DESCRIPTION OF DRAWINGS
[0007] The application will be further described in combination with the drawings of the application:
[0008] Figure 1 It is a structural schematic diagram of the utility model.
[0009] Figure 2 It is a partial enlarged view of the structure A of the utility model.
[0010] Figure 3 is a partial enlarged view of the structure B.
[0011] In the figure, 1. shaft, 2. eccentric block, 3. box, 4. bearing, 5. end cover, 6. moving ring, 7. static ring, 8. O-shaped sealing ring, 9. pin shaft, 10. spring I, 11. labyrinth groove, 12. fixed ring I, 13. oil spoon, 14. guide rod, 15. spring II, 16. oil inlet channel, 17. oil return channel, 18. fixed ring II, 19. input end connector, 20. output end connector, 21. pressing plate. DETAILED DESCRIPTION
[0012] The mechanical seal-based thin oil exciter comprises a shaft 1, an eccentric block 2, a box 3, a bearing 4, an end cover 5, a moving ring 6, a static ring 7, an O-shaped sealing ring 8, a pin shaft 9, a spring I 10, a fixed ring I 12, an oil spoon 13, a guide rod 14, a spring II 15, a fixed ring II 18, an input end connector 19, an output end connector 20 and a pressing plate 21; the box 3 is provided with an oil inlet channel 16 and an oil return channel 17; the eccentric block 2, the bearing 4, the end cover 5 and the pressing plate 21 each have two; a middle shaft shoulder of the shaft 1 is provided with the fixed ring I 12; the fixed ring I 12 is radially arranged with a plurality of guide rods 14, the guide rods 14 are each sleeved with the spring II 15, the front end of the guide rod 1 is provided with the oil spoon 13, the oil spoon 13 can be radially elongated under the action of centrifugal force when the shaft 1 rotates, and can automatically retract after the shaft 1 stops rotating; two bearings 4 are installed on the two side shaft shoulders of the shaft 1; the two bearings 4 are matched with the inner hole of the box 3; the moving ring 6 and the static ring 7 are sequentially installed on the outer side shaft shoulder of the shaft 1, the pin shaft 9 is installed in the groove of the static ring 7, the spring I 10 is sleeved on the pin shaft 9, forming an axial mechanical seal; the end cover 5 is provided with a labyrinth groove 11 and an inner hole groove on the side surface; the O-shaped sealing ring 8 is installed in the inner hole groove of the end cover 5; two end covers 5 are respectively sleeved on the two side shaft necks of the shaft 1, and are fixed on the box 3 through screws, at the same time, the inner ring of the O-shaped sealing ring 8 is tightly matched with the outer ring of the static ring 7, at the same time, the pin shaft 9 and the spring I 10 are compressed; the inner side of the eccentric block 2 is provided with a boss; two eccentric blocks 2 are respectively sleeved on the shaft 1, the boss of the eccentric block 2 is matched with the labyrinth groove 1; two pressing plates 21 are respectively pressed on the eccentric block 2, and the two end surfaces of the shaft 1 are fixed through screws; the input end connector 19 is fixed with one of the eccentric blocks 2 through a screw; the output end connector 20 is fixed with the other one of the eccentric blocks 2 through a screw; the box 3 is fixed on the fixed ring II 18 through a bolt.
[0013] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A mechanically sealed oil-dilution vibrator comprising a shaft, an eccentric, a housing, a bearing, an end cap, a running ring, a stationary ring, an O-ring seal, a pin, a spring I, a retaining ring I, a scoop, a guide rod, a spring II, a retaining ring II, an input connector, an output connector, and a pressure plate; characterized in that, The box is provided with an oil inlet channel and an oil return channel; the eccentric blocks, the bearings, the end covers and the pressing plates are each two; the middle shaft shoulder of the shaft is provided with the fixed ring I; the fixed ring I is radially provided with a plurality of the guide rods, the guide rods are all sleeved with the springs II, the guide rods have the oil scoops at the front ends, the oil scoops can be radially elongated under the action of centrifugal force when the shaft rotates and can be automatically retracted after the shaft stops rotating; the two bearings are installed on the two side shaft shoulders of the shaft; the two bearings are matched with the inner holes of the box; the movable ring and the static ring are installed on the outer side shaft shoulder of the shaft in sequence, the pin shaft is installed in the groove of the static ring, the spring 1 is sleeved on the pin shaft, and an axial mechanical seal is formed; the end cover side surface has a labyrinth groove and an inner hole groove; the O-shaped sealing ring is installed in the inner hole groove of the end cover; the two end covers are respectively sleeved on the two side shaft necks of the shaft, are fixed on the box through screws, simultaneously make the inner ring of the O-shaped sealing ring and the outer ring of the static ring closely cooperate, simultaneously press the pin shaft and the spring I; the inner side of the eccentric block is provided with a boss; the two eccentric blocks are respectively sleeved on the shaft, the boss of the eccentric block is matched with the labyrinth groove; the two pressing plates are respectively pressed on the eccentric blocks, and the two end surfaces of the shaft are fixed through screws; the input end connector is fixed with one of the eccentric blocks through a screw; the output end connector is fixed with the other one of the eccentric blocks through a screw; the box is fixed on the fixed ring II through a bolt.