Cooling device for lower bearing of powder concentrator

Abstract

The utility model relates to the technical field of powder concentrators, in particular to a powder concentrator lower bearing cooling device which comprises a bearing seat, a lower bearing and a cooling assembly. The end face of the bearing seat is connected with a lower bearing, and a cooling assembly is arranged on the lower bearing. The cooling assembly comprises a cooling water cover, the cooling water cover comprises a first closed shell and a second closed shell, the first closed shell is arranged on the outer side of the lower bearing, and the second closed shell is correspondingly arranged on the other side of the lower bearing; the cooling assembly is arranged on the lower bearing of the powder concentrator, the running temperature of the lower bearing can be reduced through the arranged cooling assembly, heat generated by the lower bearing can be continuously brought out of equipment, long-term stable running of the lower bearing of the powder concentrator is guaranteed, and the service life of the powder concentrator is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of air classifier technology, specifically to a cooling device for the lower bearing of an air classifier. Background Technology

[0002] Chinese patent document CN216382273U discloses a water-cooling device for the lower bearing of a vertical mill classifier. It includes a classifier main shaft, which is rotatably mounted within the inner ring of a bearing. The outer ring of the bearing is fixedly installed within a bearing housing. A bearing housing cover plate is detachably connected to the upper part of the bearing housing, and a flange is detachably connected to the lower part of the bearing housing. A lubricating oil space is formed between the upper part of the flange and the bearing housing. A lower sealing plate is fitted to the lower part of the flange, and a cooling water space is formed between the upper part of the lower sealing plate and the lower part of the flange. The cooling water space is connected to a cooling water inlet and a cooling water outlet. This invention, by introducing cooling water into the cooling water inlet, allows the cooling water to directly enter the lower sealing plate and directly cool the bottom of the bearing housing. This directly cools the lubricating oil located above the bottom of the bearing housing, thereby cooling the bearing.

[0003] When the above-mentioned solutions and existing technologies are used for the lower bearing of the air classifier, the problem that often occurs is that the temperature of the lower bearing of the air classifier is too high, which often leads to an alarm state. In severe cases, the temperature may even exceed the limit, causing the equipment to stop and affecting production. This has a great impact on the service life of the air classifier and cannot meet the actual use requirements. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for the lower bearing of a classifier to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for the lower bearing of a classifier, comprising a bearing housing, a lower bearing, and a cooling assembly;

[0006] The bearing housing is connected to a lower bearing, and a cooling assembly is provided on the lower bearing.

[0007] The cooling assembly includes a cooling water cover, which includes a first enclosed housing and a second enclosed housing. The first enclosed housing is disposed on the outside of the lower bearing, and the second enclosed housing is disposed on the other side of the lower bearing.

[0008] Preferably, the sides of the first closed housing and the second closed housing are sealed together by a sealing strip, and a through hole is provided in the middle of the first closed housing and the second closed housing. The through hole is adapted to be connected to the lower bearing, and a flow channel is provided inside both the first closed housing and the second closed housing.

[0009] Preferably, the upper end faces of the first closed shell and the second closed shell are both provided with upper sealing plates, and the lower sealing plates are both provided with lower sealing plates.

[0010] Preferably, the upper sealing plate is fixedly connected to the lower bearing by a fixing bolt that passes through the lower sealing plate.

[0011] Preferably, a water inlet pipe is provided on the upper sealing plate of the first closed housing end face, and the other end of the water inlet pipe passes through the upper sealing plate and extends into the first closed housing.

[0012] Preferably, a water outlet pipe is provided on the upper sealing plate of the end face of the second closed shell, and the other end of the water outlet pipe passes through the upper sealing plate and extends into the second closed shell.

[0013] Preferably, the first closed outer shell is internally connected to a connecting shell, and the connecting shell is provided with a first flow limiting plate at equal intervals, and the second closed outer shell is internally provided with a second flow limiting plate at equal intervals.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model proposes a cooling device for the lower bearing of an air classifier. By installing a cooling component on the lower bearing of the air classifier, the operating temperature of the lower bearing can be reduced, and the heat generated by the lower bearing can be continuously carried away from the equipment, ensuring the long-term stable operation of the lower bearing of the air classifier and extending the service life of the air classifier. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the lower bearing cooling device of this utility model;

[0017] Figure 2 This is a top view of the internal structure of the lower bearing cooling device of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the cooling water cover of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Bearing housing; 2. Lower bearing; 3. First enclosed housing; 4. Second enclosed housing; 5. Through hole; 6. Flow channel; 7. Upper sealing plate; 8. Lower sealing plate; 9. Fixing bolt; 10. Inlet pipe; 11. Outlet pipe; 12. Sealing strip; 13. Connecting shell; 14. First flow limiting plate; 15. Second flow limiting plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1 to 4 This utility model provides three technical solutions:

[0023] Example 1: A cooling device for the lower bearing of a classifier, comprising a bearing housing 1, a lower bearing 2, and a cooling assembly;

[0024] The end face of the bearing housing 1 is connected to a lower bearing 2, and a cooling assembly is provided on the lower bearing 2;

[0025] The cooling assembly includes a cooling water cover, which includes a first enclosed housing 3 and a second enclosed housing 4. The first enclosed housing 3 is located on the outside of the lower bearing 2, and the second enclosed housing 4 is correspondingly located on the other side of the lower bearing 2. The first enclosed housing 3 and the second enclosed housing 4 are used to connect cooling water inside to circulate and remove the heat generated by the lower bearing 2 during operation.

[0026] Example 2: Based on Example 1, the sides of the first closed housing 3 and the second closed housing 4 are sealed together by a sealing strip 12. The sealing strip 12 is used to prevent cooling water leakage. A through hole 5 is provided in the middle of the first closed housing 3 and the second closed housing 4. The through hole 5 is adapted to be connected to the lower bearing 2. A flow channel 6 is provided inside both the first closed housing 3 and the second closed housing 4. The flow channel 6 is used for cooling water to flow.

[0027] The upper end faces of the first closed shell 3 and the second closed shell 4 are both provided with upper sealing plates 7, and the lower sealing plates 8 are both provided with lower sealing plates 8.

[0028] The upper sealing plate 7 is fixedly connected to the lower bearing 2 by a fixing bolt 9 that passes through the lower sealing plate 8. The fixing bolt 9 is used to fix the first closed housing 3 and the second closed housing 4 to the outside of the lower bearing 2.

[0029] Example 3: Based on Example 2, a water inlet pipe 10 is provided on the upper sealing plate 7 on the end face of the first closed shell 3. The water inlet pipe 10 is used for the entry of cooling water, and the other end of the water inlet pipe 10 passes through the upper sealing plate 7 and extends into the first closed shell 3.

[0030] A water outlet pipe 11 is provided on the upper sealing plate 7 on the end face of the second closed housing 4. The water outlet pipe 11 is used for the cooling water that has absorbed heat to flow out for cooling and recirculation. The other end of the water outlet pipe 11 passes through the upper sealing plate 7 and extends into the second closed housing 4.

[0031] The inlet pipe 10 and the outlet pipe 11 are connected and interconnected. In addition, a cooling water pool, pump and valve are fixedly connected to the connecting pipe in a conventional manner. The cooling water pool, pump and valve are located outside the air classifier.

[0032] The first enclosed housing 3 is internally connected to a connecting housing 13, and the connecting housing 13 is provided with a first flow limiting plate 14 at equal intervals. The second enclosed housing 4 is internally provided with a second flow limiting plate 15 at equal intervals. The first flow limiting plate 14 and the second flow limiting plate 15 can slow down the flow rate of the cooling water so that it can absorb more heat and continuously carry the heat generated by the lower bearing out of the equipment.

[0033] By adding a cooling water cover to the outer periphery of the lower bearing of the existing raw material classifier to allow access to circulating water, the heat transfer from the hot raw material powder to the lower bearing 2 is reduced through the flow of circulating water forming a heat insulation layer, ensuring the long-term stable operation of the lower bearing 2 and extending its service life.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for the lower bearing of an air classifier, characterized in that: Includes bearing housing (1), lower bearing (2), and cooling assembly; The bearing housing (1) is connected to a lower bearing (2) and a cooling assembly is provided on the lower bearing (2); The cooling assembly includes a cooling water cover, which includes a first closed housing (3) and a second closed housing (4). The first closed housing (3) is disposed on the outside of the lower bearing (2), and the second closed housing (4) is disposed on the other side of the lower bearing (2).

2. The cooling device for the lower bearing of a classifier according to claim 1, characterized in that: The sides of the first closed shell (3) and the second closed shell (4) are sealed and connected by a sealing strip (12). A through hole (5) is provided in the middle of the first closed shell (3) and the second closed shell (4). The through hole (5) is adapted to be connected to the lower bearing (2). A flow channel (6) is provided in both the first closed shell (3) and the second closed shell (4).

3. The cooling device for the lower bearing of a classifier according to claim 2, characterized in that: The upper end faces of the first closed shell (3) and the second closed shell (4) are both provided with upper sealing plates (7), and the lower sealing plates (8) are both provided with lower sealing plates (8).

4. A cooling device for the lower bearing of a classifier according to claim 3, characterized in that: The upper sealing plate (7) is fixedly connected to the lower bearing (2) by a fixing bolt (9) that passes through the lower sealing plate (8).

5. A cooling device for the lower bearing of a classifier according to claim 2, characterized in that: A water inlet pipe (10) is provided on the upper sealing plate (7) on the end face of the first closed shell (3), and the other end of the water inlet pipe (10) passes through the upper sealing plate (7) and extends into the first closed shell (3).

6. A cooling device for the lower bearing of a classifier according to claim 2, characterized in that: A water outlet pipe (11) is provided on the upper sealing plate (7) on the end face of the second closed shell (4), and the other end of the water outlet pipe (11) passes through the upper sealing plate (7) and extends into the second closed shell (4).

7. A cooling device for the lower bearing of a classifier according to claim 2, characterized in that: The first closed shell (3) is internally connected to a connecting shell (13), and the connecting shell (13) is provided with a first flow limiting plate (14) at equal intervals, and the second closed shell (4) is provided with a second flow limiting plate (15) at equal intervals.

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