Vertical mill powder concentrator lower bearing sealing device

Abstract

The utility model discloses a sealing device for a lower bearing of a vertical mill powder concentrator, which relates to the technical field of powder concentrator equipment and comprises an inserting cylinder, a turntable is connected to the top of the inserting cylinder in a penetrating manner, a connecting thread is fixedly connected to the top of the turntable, and a connecting end is fixedly connected to the bottom of the inserting cylinder. The four corners of the connecting end are movably connected with connecting nuts, and the bottom of the connecting end is fixedly connected with a connecting cylinder. The cotton layer structure can reduce loss of lubricating oil of the lower shaft, the fixed cotton layer can be directly detached and replaced from the outer wall, the top of the inserting cylinder is sleeved with the rotary disc, the top of the rotary disc is connected with the connecting threads, the lower shaft can conveniently penetrate through the inserting cylinder through the rotary disc to be fixed, and the lower shaft is sleeved with the inserting cylinder. Connection is also tightened and fixed through the connecting threads, the lower shaft is installed inside more stably for sealed storage, the inner clamping ring plays a role in limiting installation and insertion of the lower shaft, the insertion position is kept in the middle, and the device and the lower shaft are connected more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of powder classifier equipment, in particular to a lower bearing sealing device of a vertical mill powder classifier. Background Art

[0002] Vertical mills are widely used in the building materials, chemical, and steel industries for grinding, drying, and separating cement raw materials, clinker, raw coal, and slag from steel mill blast furnaces. Currently, most vertical mills, both domestically and internationally, employ dynamic and static high-efficiency cage-type separators for separation. These separators primarily consist of a transmission, a rotating shaft, and a cage-type rotor. Bearings are located at both ends of the rotating shaft. The upper bearing is supported by the upper portion of the housing and bears the entire rotor weight. The lower bearing is located within the separator housing, with its bearing seat secured by multiple supporting rods.

[0003] The existing technology has the following problems:

[0004] 1. The existing vertical mill powder concentrator lower bearing sealing device operates in a dusty environment for a long time, and the lower bearing seat is prone to aging. Although there is a lubrication mechanism inside the lower bearing connection device, the internal structure has aged after long-term use, and the device is inconvenient to replace and disassemble;

[0005] 2. The existing vertical mill powder separator lower bearing sealing device is difficult to connect with the lower shaft. The connection with the lower shaft does not fit well and is prone to falling off. The connection is not tight and cannot achieve a good sealing and preservation effect. Summary of the Invention

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A lower bearing sealing device for a vertical mill powder separator comprises a plug-in cylinder, the top of the plug-in cylinder is connected through a turntable, the top of the turntable is fixedly connected to a connecting thread, the bottom of the plug-in cylinder is fixedly connected to a connecting end, the four corners of the connecting end are movably connected to connecting nuts, the bottom of the connecting end is fixedly connected to a connecting cylinder, and the bottom of the connecting cylinder is fixedly connected to a supporting bottom.

[0008] A further improvement of the technical solution of the present utility model is that a clamping ring is fixedly connected to the inner wall of the plug-in tube, a plug-in hole is opened at the bottom of the plug-in tube, and the connecting end includes a first connecting plate, and the four corners of the first connecting plate are connected to the second connecting plate through connecting nuts.

[0009] A further improvement of the technical solution of the present utility model is that: the bottom of the plug-in tube is fixedly connected with a first connecting plate, the interior of the plug-in hole is plugged with a fixed cotton layer, and the bottom of the second connecting plate is fixedly connected to the top of the connecting tube.

[0010] A further improvement of the technical solution of the present utility model is that: the supporting bottom includes a fixing plate, the outer wall of the fixing plate is fixedly connected to the mounting plate, the front side of the mounting plate is fixedly connected to the mounting box, and the front end of the mounting box is fixedly connected to the arc strip.

[0011] A further improvement of the technical solution of the present invention is that: the top of the fixing plate is fixedly connected to the bottom of the connecting tube, and the number of the mounting plates is four groups.

[0012] A further improvement of the technical solution of the present utility model is that: a mounting groove is opened on the top of the mounting box, a rotating shaft is fixedly connected to one side of the inner wall of the mounting groove, a cover plate is fixedly connected to the outer wall of the rotating shaft, and a sealing bag is fixedly connected to the inside of the mounting groove.

[0013] A further improvement of the technical solution of the present invention is that the sealing bag is installed inside the installation groove in a roll connection manner.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] The utility model provides a lower bearing sealing device for a vertical mill powder classifier, wherein the bottom of a plug-in cylinder is connected to a connecting end, a first connecting plate on the connecting end is connected to the plug-in cylinder, and a second connecting plate is connected to the connecting cylinder, and the two are connected by a connecting nut, which is mainly used to clamp and fix a fixed cotton layer, and the fixed cotton layer is installed at the bottom to support the lower shaft connection. At the same time, the cotton layer structure can reduce the loss of lubricating oil of the lower shaft, and the fixed cotton layer can be directly disassembled and replaced from the outer wall, making the device more convenient to use.

[0016] The utility model provides a lower bearing sealing device for a vertical mill powder classifier, wherein the top of the plug-in cylinder is sleeved with a turntable, and the top of the turntable is connected with a connecting thread, and the lower shaft is fixed after passing through the interior of the plug-in cylinder through the turntable, so that the lower shaft is sleeved and retained inside it, and the connection can also be tightened and fixed by the connecting thread, so that the lower shaft is more stably installed inside for sealed preservation, and at the same time, in order to stabilize the plug-in cylinder, the bottom is fixed by a supporting bottom support, so that the lower shaft can remain stable and not shake when inserted, and the inner wall of the plug-in cylinder is fixedly connected with a snap ring, which plays a limiting role in the installation and insertion of the lower shaft, so that the position of the plug-in can be maintained in the middle part, making the connection between the device and the lower shaft more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the lower bearing sealing device of the vertical mill powder separator of the present utility model;

[0018] Figure 2 This is a structural diagram of the connection end of the utility model;

[0019] Figure 3This is a schematic structural diagram of the support base of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the installation box of the utility model.

[0021] In the figure: 1. Connecting cylinder; 2. Turntable; 3. Connecting thread; 4. Connecting end; 5. Connecting nut; 6. Connecting cylinder; 7. Supporting bottom; 11. Snap ring; 12. Connecting hole; 41. First connecting plate; 42. Second connecting plate; 43. Fixed cotton layer; 71. Fixed plate; 72. Mounting plate; 73. Mounting box; 74. Arc bar; 75. Mounting groove; 76. Rotating shaft; 77. Cover plate; 78. Sealing bag. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the embodiments: Example

[0023] like Figure 1-4 As shown, the utility model provides a lower bearing sealing device for a vertical mill powder separator, comprising a plug-in cylinder 1, the top of the plug-in cylinder 1 is connected through a turntable 2, the top of the turntable 2 is fixedly connected to a connecting thread 3, the bottom of the plug-in cylinder 1 is fixedly connected to a connecting end 4, the four corners of the connecting end 4 are movably connected to connecting nuts 5, the bottom of the connecting end 4 is fixedly connected to a connecting cylinder 6, and the bottom of the connecting cylinder 6 is fixedly connected to a supporting bottom 7.

[0024] In this embodiment, the device can be made more convenient to use through the joint action of the plug-in tube 1, the turntable 2 and the support bottom 7. The top of the plug-in tube 1 is socketed with the turntable 2, and the top of the turntable 2 is connected to the connecting thread 3. The turntable 2 facilitates the lower shaft to pass through the interior of the plug-in tube 1 and then fix it, so that the lower shaft is socketed and retained inside it. The connection can also be tightened and fixed by the connecting thread 3, so that the lower shaft is more stably installed inside for sealed storage. At the same time, in order to stabilize the plug-in tube 1, the bottom is supported and fixed by the support bottom 7, so that the lower shaft can remain stable and not shake when inserted, reducing friction damage to the lower shaft. Example

[0025] like Figure 1-4 As shown, based on Example 1, the utility model provides a technical solution: preferably, a retaining ring 11 is fixedly connected to the inner wall of the plug-in tube 1, a plug-in hole 12 is provided at the bottom of the plug-in tube 1, and the connecting end 4 includes a first connecting plate 41, and the four corners of the first connecting plate 41 are connected to the second connecting plate 42 through connecting nuts 5.

[0026] The bottom of the plug-in tube 1 is fixedly connected to a first connecting plate 41 , the interior of the plug-in hole 12 is plugged with a fixed cotton layer 43 , and the bottom of the second connecting plate 42 is fixedly connected to the top of the connecting tube 6 .

[0027] In this embodiment, the device can be made more convenient to use through the joint action of the plug-in tube 1, the connecting end 4 and the connecting tube 6. The inner wall of the plug-in tube 1 is fixedly connected with a snap ring 11, and the snap ring 11 plays a limiting role in the installation and insertion of the lower shaft, so that the plug-in position can maintain the middle part, making the connection between the device and the lower shaft more stable. The bottom of the plug-in tube 1 is connected to the connecting end 4, and the first connecting plate 41 of the connecting end 4 is connected to the plug-in tube 1, and the second connecting plate 42 is connected to the connecting tube 6. The two are connected by a connecting nut 5, which is mainly used to clamp and fix the fixed cotton layer 43. The fixed cotton layer 43 is installed at the bottom to support the lower shaft connection. At the same time, the cotton layer structure can reduce the loss of lubricating oil of the lower shaft, and the fixed cotton layer 43 can be directly disassembled and replaced from the outer wall, making the device more convenient to use. Example

[0028] like Figure 1-4 As shown, based on Example 1, the utility model provides a technical solution: preferably, the support bottom 7 includes a fixed plate 71, the outer wall of the fixed plate 71 is fixedly connected to the mounting plate 72, the front side of the mounting plate 72 is fixedly connected to the mounting box 73, the front end of the mounting box 73 is fixedly connected to the arc strip 74, the top of the fixed plate 71 is fixedly connected to the bottom of the connecting tube 6, and the number of the mounting plates 72 is four groups.

[0029] A mounting groove 75 is provided at the top of the mounting box 73, a rotating shaft 76 is fixedly connected to one side of the inner wall of the mounting groove 75, a cover plate 77 is fixedly connected to the outer wall of the rotating shaft 76, a sealing bag 78 is fixedly connected to the inside of the mounting groove 75, and the sealing bag 78 is installed inside the mounting groove 75 by means of a roll connection.

[0030] In this embodiment, the joint action of the connecting tube 6 and the supporting bottom 7 can make the device more convenient to use. The supporting bottom 7 is connected to the mounting box 73 through the four sides of the fixing plate 71, which can play a supporting and fixing role. The interior of the mounting box 73 is provided with a mounting groove 75, and the interior of the mounting groove 75 is provided with a sealing bag 78. When the sealing bag 78 is used, the cover plate 77 can be opened and pulled out, and the connection of the lower shaft can be wrapped to seal the interface. The cover plate 77 can be clamped off when it is closed, making the device more convenient to use.

[0031] The following is a detailed description of the working principle of the lower bearing sealing device of the vertical mill powder separator.

[0032] like Figure 1-4As shown, when the lower bearing sealing device of the vertical mill powder classifier is in use, the top of the plug-in tube 1 is sleeved with the turntable 2, and the top of the turntable 2 is connected with the connecting thread 3. The turntable 2 facilitates the lower shaft to pass through the interior of the plug-in tube 1 and then fix it, so that the lower shaft is sleeved and kept inside it. The connection can also be tightened and fixed by the connecting thread 3, so that the lower shaft is more stably installed inside for sealing and preservation. At the same time, in order to stabilize the plug-in tube 1, the bottom is supported and fixed by the supporting bottom 7, so that the lower shaft can remain stable and not shake when inserted, reducing the friction damage of the lower shaft. The inner wall of the plug-in tube 1 is fixedly connected with a snap ring 11, which plays a limiting role in the installation and insertion of the lower shaft, so that the plug-in position can maintain the middle part, making the connection between the device and the lower shaft more stable. The bottom of the plug-in tube 1 is connected to the connecting end 4, and the first connecting end 4 The connecting plate 41 is connected to the plug-in tube 1, and the second connecting plate 42 is connected to the connecting tube 6. The two are connected by a connecting nut 5, which is mainly used to clamp and fix the fixed cotton layer 43. The fixed cotton layer 43 is installed at the bottom to support the lower shaft connection. At the same time, the cotton layer structure can reduce the loss of lubricating oil of the lower shaft. The fixed cotton layer 43 can be directly disassembled and replaced from the outer wall, making the device more convenient to use. The supporting bottom 7 is connected to the installation box 73 around the fixing plate 71, which can play a supporting and fixing role. The interior of the installation box 73 is provided with an installation groove 75, and the interior of the installation groove 75 is installed with a sealing bag 78. When the sealing bag 78 is used, the cover plate 77 can be opened and pulled out to wrap around the connection of the lower shaft so that the interface is sealed and preserved. The cover plate 77 can be clamped off, making the device more convenient to use.

[0033] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A lower bearing sealing device for a vertical mill powder separator, comprising a plug-in sleeve (1), characterized in that: The top of the plug-in cylinder (1) is connected to a turntable (2), the top of the turntable (2) is fixedly connected to a connecting thread (3), the bottom of the plug-in cylinder (1) is fixedly connected to a connecting end (4), the four corners of the connecting end (4) are movably connected to connecting nuts (5), the bottom of the connecting end (4) is fixedly connected to a connecting cylinder (6), and the bottom of the connecting cylinder (6) is fixedly connected to a supporting bottom (7).

2. The lower bearing sealing device of a vertical mill powder separator according to claim 1, characterized in that: A clamping ring (11) is fixedly connected to the inner wall of the plug-in tube (1), a plug-in hole (12) is provided at the bottom of the plug-in tube (1), and the connecting end (4) includes a first connecting plate (41), and the four corners of the first connecting plate (41) are connected to the second connecting plate (42) via connecting nuts (5).

3. The lower bearing sealing device of a vertical mill powder separator according to claim 2, characterized in that: The bottom of the plug-in tube (1) is fixedly connected to a first connecting plate (41), the interior of the plug-in hole (12) is plugged with a fixed cotton layer (43), and the bottom of the second connecting plate (42) is fixedly connected to the top of the connecting tube (6).

4. The lower bearing sealing device of a vertical mill powder separator according to claim 1, characterized in that: The supporting base (7) comprises a fixing plate (71), the outer wall of the fixing plate (71) is fixedly connected to a mounting plate (72), the front side of the mounting plate (72) is fixedly connected to a mounting box (73), and the front end of the mounting box (73) is fixedly connected to an arc-shaped strip (74).

5. The lower bearing sealing device of a vertical mill powder separator according to claim 4, characterized in that: The top of the fixing plate (71) is fixedly connected to the bottom of the connecting cylinder (6), and the number of the mounting plates (72) is four.

6. The lower bearing sealing device of a vertical mill powder separator according to claim 4, characterized in that: A mounting groove (75) is provided on the top of the mounting box (73), a rotating shaft (76) is fixedly connected to one side of the inner wall of the mounting groove (75), a cover plate (77) is fixedly connected to the outer wall of the rotating shaft (76), and a sealing bag (78) is fixedly connected to the interior of the mounting groove (75).

7. The lower bearing sealing device of a vertical mill powder separator according to claim 6, characterized in that: The sealing bag (78) is installed inside the installation groove (75) by means of a roll connection.

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