Bearing circulating lubricating device of disc separator

Abstract

The utility model discloses a bearing circulating lubrication device of a disc type separator, which comprises a vertical shaft, an oil guide ring, an upper bearing, a bearing seat, a spacer bush, a lower bearing, a belt pulley, an oil suction pipe and an oil pool, the vertical shaft is provided with an axial center hole with a closed upper end part, and the upper end of the vertical shaft is provided with a transverse hole communicated with the axial center hole; the oil guide ring is provided with an oil guide groove communicated with the transverse hole and an oil guide hole communicated with the oil guide groove, the oil guide hole is communicated with the position where the upper bearing is located, the upper end of the oil suction pipe is connected with the lower end of the vertical shaft, the lower end of the oil suction pipe extends into the oil pool, and the oil suction pipe is provided with a climbing through hole communicated with the axial center hole and an axial through hole communicated with the climbing through hole. The climbing through hole is a conical hole which is gradually enlarged from bottom to top in the axial direction, at least part of the bearing seat is located in the hollow cavity of the belt wheel and does not make contact with the inner wall of the belt wheel, and the belt wheel is provided with an inclined through hole communicated with the oil pool. The problems that bearing lubrication of a traditional disc separator is low in reliability and complex in structure are solved.

Description

Technical Field

[0001] This utility model relates to the field of disc separator technology, and in particular to a disc separator bearing circulating lubrication device. Background Technology

[0002] A disc separator typically consists of a rotating drum, a vertical shaft system, and a frame. The vertical shaft system drives the rotating drum to rotate at high speed. The vertical shaft system is supported by upper and lower bearings. In order to extend the bearing life and improve the stability and reliability of the separator's operation, a suitable lubrication method is required to lubricate the bearings.

[0003] Currently, there are two main methods for lubricating the bearings of disc separators:

[0004] (1) Oil bath lubrication: Lubrication is achieved by rotating a component submerged in an oil bath to bring oil to the surface of the friction component or the lubrication point.

[0005] (2) Centralized circulating lubrication: The lubricant is circulated by an oil pump and then delivered to each lubrication point for lubrication.

[0006] Oil bath lubrication requires submerging rotating parts (such as transmission gears) in an oil bath. As the spindle rotates, thin oil is splashed onto the surfaces of friction parts or lubrication points to achieve lubrication. This introduces considerable additional resistance to the transmission system, increasing energy consumption. Furthermore, the lubricating oil temperature rises due to high-speed, large-area agitation. Centralized circulating lubrication, on the other hand, requires an external oil pump to pump oil and deliver it to each lubrication point, increasing structural complexity and cost. Utility Model Content

[0007] To address the shortcomings of the existing technology, this utility model provides a bearing circulating lubrication device for a disc separator that has a simpler structure, lower energy consumption, more reliable lubrication, and more convenient maintenance.

[0008] This utility model is achieved using the following technical solution:

[0009] A bearing circulating lubrication device for a disc separator includes a vertical shaft, an oil guide ring, an upper bearing, a bearing housing, a spacer, a lower bearing, a pulley, an oil suction pipe, and an oil sump. The upper bearing, spacer, and lower bearing are sequentially installed in the bearing housing from top to bottom. The vertical shaft passes through the upper bearing, spacer, and lower bearing. The oil guide ring is sleeved on the vertical shaft above the upper bearing. The pulley is sleeved on the vertical shaft below the bearing housing. The vertical shaft has an axial center hole closed at its upper end, and a transverse hole communicating with the axial center hole at its upper end. The oil guide ring has a guide pipe communicating with the transverse hole. The oil tank and the oil guide hole connected to the oil guide tank are provided. The oil guide hole is connected to the location of the upper bearing. The upper end of the oil suction pipe is connected to the lower end of the vertical shaft. The lower end of the oil suction pipe extends into the oil tank. The oil suction pipe is provided with a climbing through hole connected to the axial center hole and an axial through hole connected to the climbing through hole. The climbing through hole is a tapered hole that gradually expands from bottom to top along the axial direction. The pulley has a hollow cavity inside. The bearing seat is at least partially located in the hollow cavity and does not contact the inner wall of the pulley. The pulley has an oblique through hole inside that connects the bearing seat and the oil tank.

[0010] Furthermore, a vent pipe extends laterally through the upper part of the oil suction pipe. The vent pipe has a transverse vent hole and a central vent hole that communicates with the transverse vent hole. The central vent hole is connected to the climbing through hole.

[0011] Furthermore, the cross-sectional shape of the axial through hole is plum blossom-shaped.

[0012] Furthermore, the oblique through holes are provided in multiple manner.

[0013] Furthermore, the upper end of the oil suction pipe is detachably connected to the lower end of the vertical shaft.

[0014] Furthermore, a first sealing structure is provided between the outer wall of the upper end of the oil suction pipe and the inner wall of the lower end of the vertical shaft.

[0015] Furthermore, an oil baffle is fitted on the upper end of the vertical shaft, and the oil baffle is located above the oil guide ring.

[0016] Furthermore, the oil baffle has a shoulder portion that abuts against the upper end face of the bearing housing, and the oil baffle extends at least partially into the interior of the bearing housing, with a second sealing structure provided between its outer wall and the inner wall of the bearing housing.

[0017] Furthermore, a lubrication oil passage is formed inside the bearing housing, and a temperature sensor and a flow sensor are installed in the lubrication oil passage.

[0018] Furthermore, it also includes an alarm, with the temperature sensor and flow sensor electrically connected to the alarm respectively.

[0019] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0020] When the pulley of this invention drives the vertical shaft to rotate at high speed, the vertical shaft drives the oil suction pipe to rotate. The lower end of the oil suction pipe agitates the lubricating oil near the pipe, giving it a certain rotational speed. Under the action of centrifugal force, the lubricating oil in the oil sump is drawn into the axial center hole of the vertical shaft through the axial through hole and the climbing through hole of the oil suction pipe. Then, it flows into the oil guide groove from the transverse hole at the upper end of the vertical shaft, and is then thrown out into the bearing housing from the oil guide hole. After that, the lubricating oil flows through the upper and lower bearings under the action of gravity, lubricating the bearings. Then, the lubricating oil flows downward through the inclined through hole back into the oil sump, forming a complete and effective automatic circulation loop for lubricating oil. Since the pulley is a hollow structure, the bearing housing is inserted into it without contact. After the lubricating oil flows out of the bearing housing, it flows directly into the pulley and then flows back into the oil sump through the inclined through hole without contacting the pulley. There is no need to add an additional return oil pipe, which simplifies the structure. The inclined through hole is more conducive to the return of lubricating oil and is also easy to process. In addition, the climbing through hole of the oil suction pipe is a tapered hole that gradually expands from bottom to top, which can provide the lubricating oil with the force to climb upward. On the one hand, it ensures that the lubricating oil can climb upward continuously, making lubrication more reliable. On the other hand, it helps to increase the climbing speed of the lubricating oil, effectively improving lubrication efficiency and lubrication effect. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the bearing circulating lubrication device of the disc separator according to an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of the oil suction pipe according to an embodiment of the present utility model;

[0023] Figure 3 for Figure 2 Sectional view of the structure at point AA;

[0024] In the diagram: 1. Vertical shaft; 11. Axial center hole; 12. Transverse hole; 2. Oil guide ring; 21. Oil guide groove; 22. Oil guide hole; 3. Upper bearing; 4. Bearing housing; 5. Spacer; 6. Lower bearing; 7. Pulley; 71. Angled through hole; 72. Locking nut; 73. Washer; 8. Oil suction pipe; 81. Climbing through hole; 82. Axial through hole; 83. Vent pipe; 84. Transverse vent hole; 85. Vent center hole; 86. First sealing structure; 9. Oil sump; 10. Oil baffle cover; 101. Shoulder; 102. Second sealing structure. Detailed Implementation

[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0026] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0027] like Figures 1-3 As shown, this utility model provides a bearing circulating lubrication device for a disc separator, including a vertical shaft 1, an oil guide ring 2, an upper bearing 3, a bearing seat 4, a spacer 5, a lower bearing 6, a pulley 7, an oil suction pipe 8, and an oil sump 9. The upper bearing 3, spacer 5, and lower bearing 6 are installed sequentially from top to bottom within the bearing seat 4. The vertical shaft 1 passes through the upper bearing 3, spacer 5, and lower bearing 6. The oil guide ring 2 is sleeved on the vertical shaft 1 above the upper bearing 3. The pulley 7 is sleeved on the vertical shaft 1 below the bearing seat 4. The vertical shaft 1 has an axial center hole 11 closed at its upper end, and a transverse hole 12 communicating with the axial center hole 11 at its upper end. The oil guide ring 2 has a transverse hole 12 communicating with the transverse hole. The oil guide groove 21 and the oil guide hole 22 connected to the oil guide groove 21 are connected. The oil guide hole 22 is connected to the position of the upper bearing 3. The upper end of the oil suction pipe 8 is connected to the lower end of the vertical shaft 1. The lower end of the oil suction pipe 8 extends into the oil pool 9. The oil suction pipe 8 is provided with a climbing through hole 81 connected to the axial center hole 11 and an axial through hole 82 connected to the climbing through hole 81. The climbing through hole 81 is a tapered hole that gradually expands from bottom to top along the axial direction. The pulley 7 has a hollow cavity inside. The bearing seat 4 is at least partially located in the hollow cavity and does not contact the inner wall of the pulley 7. The pulley 7 has an oblique through hole 71 that connects the bearing seat 4 and the oil pool 9.

[0028] In this embodiment, the pulley 7 is fixed to the vertical shaft 1 by the locking nut 72 and the washer 73. When the pulley 7 drives the vertical shaft 1 to rotate at high speed, the vertical shaft 1 drives the oil suction pipe 8 to rotate. The lower end of the oil suction pipe 8 agitates the nearby lubricating oil, giving the nearby lubricating oil a certain rotational speed. Under the action of centrifugal force, the lubricating oil in the oil pool 9 is driven to be sucked into the axial center hole 11 of the vertical shaft 1 through the axial through hole 82 and the climbing through hole 81 of the oil suction pipe 8. Then, it flows into the oil guide groove 21 from the transverse hole 12 at the upper end of the vertical shaft 1, and then is thrown out into the bearing seat 4 from the oil guide hole 22. After that, the lubricating oil... Under the influence of gravity, the lubricating oil flows downward through the upper bearing 3 and the lower bearing 6, lubricating the bearings. Then, the lubricating oil flows back into the oil sump 9 through the oblique through hole 71, forming a complete and effective automatic circulation loop for lubricating oil. Since the pulley 7 is a hollow structure, the bearing housing 4 is inserted into it without contact. After the lubricating oil flows out of the bearing housing 4, it flows directly into the interior of the pulley 7 and then flows back into the oil sump 9 through the oblique through hole 71. It will not contact the pulley 7, so there is no need to add an additional return oil pipeline. The structure is simplified, and the setting of the oblique through hole 71 is more conducive to the return of lubricating oil. At the same time, it is easy to process. In addition, the principle of the oil suction pipe 8 is that the vertical shaft 1 drives the oil suction pipe 8 to rotate, and the lower end of the oil suction pipe 8 agitates the nearby lubricating oil, so that the nearby lubricating oil obtains a certain rotational speed. Under the action of centrifugal force, the lubricating oil climbs upward along the conical surface of the climbing through hole 81, producing a "water suction" effect. After the climbing lubricating oil enters the axial center hole 11 of the vertical shaft 1, it is continuously pushed upward by the lubricating oil in the oil suction pipe 8 and discharged from the transverse hole 12 at the top, thereby lubricating the bearing. Since the climbing through hole 81 is a conical hole that gradually expands from bottom to top, it can provide an auxiliary force for the lubricating oil to climb upward. On the one hand, it ensures that the lubricating oil can climb upward continuously, making the lubrication more reliable. On the other hand, it helps to increase the climbing speed of the lubricating oil, effectively improving the lubrication efficiency and the lubrication effect.

[0029] In a preferred embodiment, a vent pipe 83 extends laterally through the upper part of the oil suction pipe 8. The vent pipe 83 has a transverse vent hole 84 and a central vent hole 85 communicating with the transverse vent hole 84. The central vent hole 85 is connected to the climbing through hole 81.

[0030] In this embodiment, the vent pipe 83 can connect with the outside to exhaust air after the oil suction pipe 8 is inserted into the oil tank 9, and can also expel the air inside the oil suction pipe 8, making the oil suction smoother.

[0031] In a preferred embodiment, the cross-sectional shape of the axial through hole 82 is quincunx-shaped. This increases the oil absorption area.

[0032] In a preferred embodiment, multiple oblique through holes 71 are provided. This can accelerate the return of lubricating oil to the oil sump 9.

[0033] In a preferred embodiment, the upper end of the oil suction pipe 8 is detachably connected to the lower end of the vertical shaft 1. This facilitates the replacement and disassembly of the oil suction pipe 8. Preferably, the oil suction pipe 8 and the vertical shaft 1 can be connected by a threaded connection.

[0034] In a preferred embodiment, a first sealing structure 86 is provided between the upper outer wall of the oil suction pipe 8 and the lower inner wall of the vertical shaft 1. The first sealing structure 86 enhances the sealing between the oil suction pipe 8 and the vertical shaft 1. The first sealing structure 86 is preferably a sealing ring, wherein the upper outer wall of the oil suction pipe 8 is provided with an annular groove for accommodating the sealing ring.

[0035] In a preferred embodiment, an oil baffle 10 is also fitted onto the upper end of the vertical shaft 1, and the oil baffle 10 is located above the oil guide ring 2. By providing the oil baffle 10, oil thrown out by the oil guide ring 2 is prevented from flying out.

[0036] In a preferred embodiment, the oil baffle 10 has a shoulder portion 101 that abuts against the upper end face of the bearing seat 4. The oil baffle 10 extends at least partially into the interior of the bearing seat 4, and a second sealing structure 102 is provided between its outer wall and the inner wall of the bearing seat 4. The shoulder portion 101 and the second sealing structure 102 cooperate with each other to improve the sealing performance between the oil baffle 10 and the bearing seat 4.

[0037] In a preferred embodiment, a lubrication oil passage is formed inside the bearing housing 4, and a temperature sensor and a flow sensor are installed within the lubrication oil passage. By installing the temperature sensor and flow sensor, the lubrication status of the bearing can be monitored in real time, ensuring that the bearing is lubricated, reducing machine malfunctions, and ensuring safe machine operation.

[0038] In a preferred embodiment, an alarm is also included, with the temperature sensor and flow sensor electrically connected to the alarm. The alarm can alert the operator when the lubrication circuit temperature is too high or the bearing loses lubrication.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A bearing circulating lubrication device for a disc separator, characterized in that, The assembly includes a vertical shaft (1), an oil guide ring (2), an upper bearing (3), a bearing housing (4), a spacer (5), a lower bearing (6), a pulley (7), an oil suction pipe (8), and an oil sump (9). The upper bearing (3), spacer (5), and lower bearing (6) are installed sequentially from top to bottom inside the bearing housing (4). The vertical shaft (1) passes through the upper bearing (3), spacer (5), and lower bearing (6). The oil guide ring (2) is sleeved on the vertical shaft (1) above the upper bearing (3). The pulley (7) is sleeved on the vertical shaft (1) below the bearing housing (4). The vertical shaft (1) has an axial center hole (11) closed at the upper end. The upper end of the vertical shaft (1) has a transverse hole (12) communicating with the axial center hole (11). The oil guide ring (2) has a guide pipe communicating with the transverse hole (12). The oil groove (21) and the oil guide hole (22) connected to the oil guide groove (21) are connected to the position of the upper bearing (3). The upper end of the oil suction pipe (8) is connected to the lower end of the vertical shaft (1). The lower end of the oil suction pipe (8) extends into the oil pool (9). The oil suction pipe (8) is provided with a climbing through hole (81) connected to the axial center hole (11) and an axial through hole (82) connected to the climbing through hole (81). The climbing through hole (81) is a tapered hole that gradually expands from bottom to top along the axial direction. The pulley (7) has a hollow cavity inside. The bearing seat (4) is at least partially located in the hollow cavity and does not contact the inner wall of the pulley (7). The pulley (7) has an oblique through hole (71) connecting the bearing seat (4) and the oil pool (9).

2. The bearing circulating lubrication device for the disc separator according to claim 1, characterized in that, The upper part of the oil suction pipe (8) is transversely penetrated by a vent pipe (83). The vent pipe (83) has a transverse vent hole (84) and a vent center hole (85) communicating with the transverse vent hole (84). The vent center hole (85) is connected to the climbing through hole (81).

3. The bearing circulating lubrication device for the disc separator according to claim 1, characterized in that, The cross-sectional shape of the axial through hole (82) is plum blossom shaped.

4. The bearing circulating lubrication device for the disc separator according to claim 1, characterized in that, The oblique through holes (71) are provided in multiple ways.

5. The bearing circulating lubrication device for the disc separator according to claim 1, characterized in that, The upper end of the oil suction pipe (8) is detachably connected to the lower end of the vertical shaft (1).

6. The bearing circulating lubrication device for the disc separator according to claim 1, characterized in that, A first sealing structure (86) is provided between the outer wall of the upper end of the oil suction pipe (8) and the inner wall of the lower end of the vertical shaft (1).

7. The bearing circulating lubrication device for the disc separator according to claim 1, characterized in that, An oil baffle (10) is also fitted on the upper end of the vertical shaft (1), and the oil baffle (10) is located above the oil guide ring (2).

8. The bearing circulating lubrication device for the disc separator according to claim 7, characterized in that, The oil baffle (10) has a shoulder (101) that abuts against the upper end face of the bearing seat (4). The oil baffle (10) extends at least partially into the interior of the bearing seat (4) and a second sealing structure (102) is provided between its outer wall and the inner wall of the bearing seat (4).

9. The bearing circulating lubrication device for the disc separator according to claim 1, characterized in that, The bearing housing (4) has a lubricating oil passage inside, and a temperature sensor and a flow sensor are installed in the lubricating oil passage.

10. The bearing circulating lubrication device for the disc separator according to claim 9, characterized in that, It also includes an alarm, with the temperature sensor and flow sensor electrically connected to the alarm respectively.

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