Thin oil lubrication vibration exciter for vibrating screen
By using the sealing design of the labyrinth ring and the oil reservoir cap, and the circulating flow mechanism of the oil slinger, the leakage problem of the thin oil lubricated vibrator is solved, improving the utilization rate of lubricating oil and the start-up performance of the equipment.
Patent Information
- Application Number
- CN202520224433.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-12
AI Technical Summary
In the existing technology, thin oil lubricated vibrators are prone to leakage under high-frequency vibration, resulting in low lubricant utilization. In particular, the starting resistance increases in low-temperature environments, affecting the normal operation of the equipment.
It adopts a labyrinth structure and oil slinger design. The labyrinth ring forms a seal with the oil reservoir cap, and the oil slinger throws the lubricating oil into the oil reservoir cap to form a circulation flow and prevent leakage.
It effectively prevents lubricating oil leakage, improves lubricating oil utilization, reduces starting resistance, and ensures normal start-up and operation of equipment in low-temperature environments.
Smart Images
Figure CN223862230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibrator technology, specifically to a thin oil lubricated vibrator for vibrating screens. Background Technology
[0002] Most vibrators on the market currently use dry oil lubrication (grease lubrication). This is because dry oil lubrication is simple in structure and does not require auxiliary structures or equipment such as an oil tank. However, when the equipment is in a low-temperature environment, the viscosity of the grease increases, leading to increased starting resistance of the vibrator and increasing the starting load on the motor. Furthermore, changing the grease in dry oil lubrication is relatively difficult.
[0003] Therefore, users are gradually inclined to side-mounted vibrators with thin oil lubrication. However, thin oil has high fluidity and low viscosity, making it very easy to leak. When applied to vibrators, it will further aggravate the problem of lubricating oil leakage because the vibrator will generate high-frequency vibration loads. Utility Model Content
[0004] Therefore, this utility model provides a thin oil lubricated vibrator for vibrating screens to solve the problem of lubricating oil leakage caused by the use of thin oil lubrication in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] The vibrating screen lubricated with thin oil disclosed in this utility model is suitable for driving the rotation of the eccentric block, and includes:
[0007] A bearing housing, in which a bearing assembly is installed, and a bearing accessory is installed at each end of the bearing assembly;
[0008] The oil slinger plate abuts against the bearing accessory on its inner side and against the labyrinth ring on its outer side;
[0009] A pair of oil reservoir caps, with their outer sides forming a labyrinth structure with the pair of labyrinth rings, and their inner sides screwed and fixed to both ends of the bearing seat;
[0010] The oil slinger is mounted on the main shaft, and the main shaft drives the oil slinger to rotate and sling lubricating oil into the oil reservoir cover.
[0011] Furthermore, the oil reservoir cap includes:
[0012] The pressure ring body has mounting holes at its edges and a spindle hole at its center;
[0013] An oil storage structure is provided with a sealing groove on the outside, and the inner side of the oil storage structure is connected to the main oil tank.
[0014] An installation groove is provided on the outside of the pressure ring body, and the oil storage structure is provided on the inside of the pressure ring body.
[0015] Furthermore, an oil-blocking ring is provided directly above the main oil tank, and the oil-blocking ring is fixedly connected to the main oil tank to form an L-shaped structure.
[0016] Furthermore, the oil slinger includes a disc body, a raised edge, and a mounting hole. The spindle is inserted into the mounting hole, which is located at the center of the disc body. The raised edge is provided on the outer edge of the disc body, and the oil is slinged toward the oil storage cap through the raised edge.
[0017] Furthermore, the maze ring includes:
[0018] The end cap is fitted onto the main shaft at its center.
[0019] A labyrinth groove is provided on the back side of the end cap and embedded in the mounting groove.
[0020] Furthermore, a stepped surface is provided at the connection between the disc body and the raised edge, and the stepped surface and the oil blocking ring are assembled to form a guide oil groove.
[0021] Furthermore, the bearing assembly includes several parallel and series-connected roller bearings, with an isolation ring provided between two adjacent roller bearings.
[0022] Furthermore, the bearing housing is vertically provided with an oil filling hole.
[0023] This utility model has the following advantages:
[0024] The vibrating screen vibrator disclosed in this utility model uses a thin oil lubricating vibrator. When the vibrator is running, the bearing rollers agitate the lubricating oil, which inevitably causes the lubricating oil to surge. The main shaft drives the oil slinger to rotate, and the oil entering this position will be slinged onto the oil storage cap through the oil slinger, thereby achieving the technical effect of storing the outflowing lubricating oil. Compared with the prior art, it can effectively avoid lubricating oil leakage when using thin oil, and can make the lubricating oil circulate between the bearing and the oil storage cap, thereby significantly improving the utilization rate of lubricating oil. Attached Figure Description
[0025] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0026] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0027] Figure 1 A schematic diagram of the structure of the thin oil lubricated vibrator for the vibrating screen provided by this utility model;
[0028] Figure 2 Provided by this utility model Figure 1 A magnified view of a portion at point A;
[0029] Figure 3 A schematic diagram of the bearing assembly structure provided by this utility model;
[0030] Figure 4 A schematic diagram of the oil storage cap structure provided by this utility model;
[0031] Figure 5 A schematic diagram of the labyrinth ring structure provided by this utility model;
[0032] Figure 6 A schematic diagram of the oil slinger structure provided by this utility model;
[0033] In the diagram: 1 Bearing housing; 2 Labyrinth ring; 21 End cap; 22 Labyrinth groove; 3 Oil slinger; 31 Disc body; 32 Warped edge; 33 Assembly hole; 4 Bearing assembly; 41 Roller bearing; 42 Isolation ring; 5 Oil reservoir cover; 51 Pressure ring body; 52 Mounting hole; 53 Oil reservoir structure; 54 Main oil groove; 55 Mounting groove; 56 Main shaft hole; 57 Sealing groove; 6 Bearing accessories; 7 Main shaft; 8 Bearing accessories; 9 Oil blocking ring. Detailed Implementation
[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0035] Please refer to this as well. Figures 1-6The vibrating screen lubricated vibrator disclosed in this utility model is suitable for driving the eccentric block to rotate, thereby enabling the excited object to obtain a certain form and magnitude of vibration, so as to conduct vibration and strength tests on the object, or to calibrate vibration testing instruments and sensors. The technical solution will be described below by way of specific embodiments.
[0036] In one specific embodiment of this utility model, the thin oil lubricated vibrator for a vibrating screen includes a bearing housing 1, an oil slinger 3, and a pair of oil reservoir covers 5. A bearing assembly 4 is installed inside the bearing housing 1, and a bearing attachment 6 is installed at each end of the bearing assembly 4. The bearing attachment 6 abuts against the inner side of the oil slinger 3, thereby preventing contact between the bearing assembly 4 and the oil slinger 3 and thus avoiding interference between the parts. In this embodiment, the outer side of the oil slinger 3 abuts against the labyrinth ring 2 to prevent the oil slinger 3 from shifting along the main shaft. On the other hand, the labyrinth ring 2 and the oil reservoir covers 5 are sealed on the outer side, while the inner side of the oil reservoir covers 5 is fastened to the bearing housing 1 with bolts. The oil slinger 3 is sleeved on the main shaft 7. The main shaft 7 drives the oil slinger 3 to rotate and throw lubricating oil into the oil reservoir covers 5, thereby ensuring that the lubricating oil always circulates within the oil reservoir covers 5, thus preventing lubricating oil leakage.
[0037] In this embodiment, the bearing assembly 4 includes a plurality of parallel and connected roller bearings 41, and an isolation ring 42 is provided between two adjacent roller bearings 41.
[0038] In this embodiment, the oil reservoir cap 5 includes a pressure ring body 51, an oil storage structure 53, and a mounting groove 55. The pressure ring body 51 has mounting holes 52 along its edge. Fasteners fix the pressure ring body 51 to the bearing housing 1 through the mounting holes 52. A spindle hole 56 is provided at the center of the pressure ring body 51. The spindle 7 passes through the spindle hole 56 and, together with the oil storage structure 53 on the pressure ring body 51, forms an oil reservoir. The oil reservoir can store a certain amount of lubricating oil, forming an oil storage structure within the bearing housing for bearing lubrication. Furthermore, a sealing groove 57 is provided on the outer side of the oil storage structure 53, and a rubber sealing ring is provided inside the sealing groove 57 to prevent lubricating oil leakage.
[0039] In this embodiment, the mounting groove 55 is provided on the outside of the pressure ring body 51, while an oil storage structure 53 is provided on the inside of the pressure ring body 51. A sealing groove 57 is provided on the outside of the oil storage structure 53, and the inside of the oil storage structure 53 is connected to the main oil groove 54. On the other hand, an oil blocking ring 9 is provided directly above the main oil groove 54 and is fixedly connected to the main oil groove 54, forming an L-shaped structure.
[0040] In some embodiments, the oil slinger 3 includes a disc body 31, a raised edge 32, and a mounting hole 33. The spindle 7 is inserted into the mounting hole 33, which is located at the center of the disc body 31. The raised edge 32 is provided on the outer edge of the disc body 31, and the oil is slingered toward the oil reservoir cap 5 through the raised edge 32. In this embodiment, a raised edge 32 is designed on the side of the oil slinger 31 near the bearing assembly 4, and the raised edge 32 also serves as an oil-blocking surface. When the oil slinger 31 and the spindle 7 rotate together, the raised edge 32 will sling the oil splashed onto the surface of the oil guide disc toward the oil reservoir cap 5. At the same time, this shape can also prevent the oil splashed in the bearing chamber from entering the gap between the labyrinth ring 2 and the oil reservoir cap 5, so that the oil cannot enter the labyrinth groove 22 by splashing, thereby causing oil leakage.
[0041] In the previous embodiment, the labyrinth ring 2 includes an end cap 21 and a labyrinth groove 22. The center of the end cap 21 is sleeved on the main shaft 7, and the labyrinth groove 22 is provided on the back side of the end cap 21. The labyrinth groove 22 is embedded in the mounting groove 55.
[0042] Oil filling holes are vertically installed on the bearing housing 1. Specifically, an oil drain hole is drilled at an appropriate position at the bottom of the vibrator bearing housing 1, and an oil filling hole is drilled at an appropriate position at the top. This facilitates oil filling and oil changing operations. Since the positions of the oil holes need to be designed according to the specific conditions of the vibrating screen, they are not shown in the attached diagram.
[0043] In some embodiments, a stepped surface 10 is provided at the connection between the disc body 31 and the raised edge 32. The stepped surface 10 and the oil blocking ring 9 are assembled to form a guide oil groove 8. A stepped surface 10 is designed near the shaft hole of the disc body 31. After being assembled with the labyrinth ring 2, the stepped surface 10 forms the guide oil groove 8. The guide oil groove 8 guides a small amount of oil during operation and shutdown to the area below the vibrator, preventing oil from entering the labyrinth groove 22. During operation, oil entering this location will be thrown towards the oil reservoir cover 5 through the oil slinger 31, thereby causing the lubricating oil to circulate between the oil reservoir cover 5 and the bearing to prevent oil leakage.
[0044] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A vibrating screen vibrator lubricated with thin oil, suitable for driving a counterweight to rotate, characterized in that, include: The bearing housing (1) has a bearing assembly (4) installed inside, and a bearing accessory (6) is installed at each end of the bearing assembly (4); The oil slinger (3) abuts against the bearing attachment (6) on its inner side and against the labyrinth ring (2) on its outer side; A pair of oil reservoir caps (5) form a labyrinth structure with the pair of labyrinth rings (2) on the outside and are screwed to both ends of the bearing seat (1) on the inside. The oil slinger (3) is mounted on the main shaft (7), and the main shaft (7) drives the oil slinger (3) to rotate and sling the lubricating oil into the oil storage cover (5).
2. The oil-lubricated vibrator for a vibrating screen as described in claim 1, characterized in that, The oil reservoir cap (5) includes: The pressure ring body (51) has mounting holes (52) at its edge and a spindle hole (56) at its center; The oil storage structure (53) has a sealing groove (57) on its outer side, and the inner side of the oil storage structure (53) is connected to the main oil groove (54); An installation groove (55) is provided on the outside of the pressure ring body (51), and the oil storage structure (53) is provided on the inside of the pressure ring body (51).
3. The oil-lubricated vibrator for a vibrating screen as described in claim 2, characterized in that, An oil blocking ring (9) is provided directly above the main oil tank (54). The oil blocking ring (9) is fixedly connected to the main oil tank (54) and forms an L-shaped structure.
4. The oil-lubricated vibrator for a vibrating screen as described in claim 3, characterized in that, The oil-throwing disc (3) includes a disc body (31), a raised edge (32), and a mounting hole (33). The main shaft (7) is inserted into the mounting hole (33), which is located at the center of the disc body (31). The raised edge (32) is provided on the outer edge of the disc body (31), and the oil is thrown towards the oil storage cap (5) through the raised edge (32).
5. The thin oil-lubricated vibrator for a vibrating screen as described in claim 2, characterized in that, The maze ring (2) includes: End cap (21) is fitted onto the main shaft (7) at its center; A labyrinth groove (22) is provided on the back side of the end cap (21) and embedded in the mounting groove (55).
6. The oil-lubricated vibrator for a vibrating screen as described in claim 4, characterized in that, A stepped surface (10) is provided at the connection between the disc body (31) and the raised edge (32), and the stepped surface (10) and the oil blocking ring (9) are assembled to form a guide oil groove (8).
7. The oil-lubricated vibrator for a vibrating screen as described in claim 1, characterized in that, The bearing assembly (4) includes a plurality of parallel and series roller bearings (41), and an isolation ring (42) is provided between two adjacent roller bearings (41).
8. The oil-lubricated vibrator for a vibrating screen as described in claim 1, characterized in that, The bearing housing (1) is vertically provided with an oil filling hole.