CN219035340U

CN219035340U - Bearing sealing device of powder concentrator

Info

Publication number: CN219035340U
Application number: CN202223399767.5U
Authority: CN
Inventors: 李阳洋; 杨俊伟; 熊贵元; 何建忠; 刘攀锋; 罗立新; 王成斌; 姚崇武; 黄立新; 周小平
Original assignee: Sichuan Desheng Group Cement Co ltd
Current assignee: Sichuan Desheng Group Cement Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-16
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a bearing sealing device of a powder concentrator, which particularly relates to the technical field of bearing sealing, and comprises a powder concentrator body, wherein a bearing sealing shell is arranged in the powder concentrator body, a bearing part is arranged in the bearing sealing shell, a main shaft is inserted into the inner side of the bearing part along the vertical direction, one end part of the main shaft extends to the outer part of the powder concentrator body and is connected with a coupling, the other end of the coupling is connected with a driving shaft, an upper sealing cover and a lower sealing cover are respectively sleeved at the positions of the outer part of the main shaft, which are positioned at the upper end part and the lower end part of the bearing sealing shell, and the outer wall of the bearing sealing shell is connected with a port. The sealing structure of the bearing is simpler in structural design, the protective performance of the bearing can be effectively improved, the movable performance of the ball in the bearing part can be conveniently kept by oiling, the sealing performance of the bearing mounting part can be improved, and the designed structure is convenient to detach and replace.

Description

Bearing sealing device of powder concentrator

Technical Field

The utility model relates to the technical field of bearing sealing, in particular to a bearing sealing device of a powder concentrator.

Background

The powder selecting machine of the independent vertical mill in the cement production process plays a vital role in selecting powder during grinding, the ground material is brought up by high-speed rotating air flow in the mill and enters the powder selecting machine through the static blades, the material is screened under the high-speed rotation of the cage rotor, the screened fine particle material is brought out by waste gas and enters the cyclone barrel to be collected, the coarse particle material falls into the grinding disc through the cone barrel at the lower part to grind again, in the use process of the powder selecting machine, a rotor or other driving shafts are required to rotate and screen the material for better, and if the sealing performance of the general bearing structure is poor, oil leakage phenomenon occurs, so that the ball rotation is difficult, the resistance is large, the use effect is influenced, and the noise is large.

The utility model patent of China with the publication number of CN215171604U discloses a sealing device for a bearing at the lower part of a powder selecting machine of a cement vertical mill, and relates to the technical field of cement production equipment. Through setting up spacer sleeve, lip seal, maze and safety cover, reached the effect that separates the dust through tertiary seal, solved because this bearing adopts the lubricating grease lubrication, bearing upper portion is open space, leads to lubricating grease to hardly get into the packing department of lower part through the bearing, after a period of operation, leads to lower packing to damage very easily, after the dust gets into in a large number, causes the problem that the bearing damaged very easily.

The bearing sealing device designed by the above patent can achieve a good sealing effect, but in actual use, the structural design is more complex, the manufacturing process is inconvenient, the assembly is time-consuming, and the manufacturing cost is increased, so that under the effect of realizing good sealing, the problem can be avoided, and the problem that the field needs to be explored is solved.

Disclosure of Invention

The technical scheme of the utility model aims at the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and in order to overcome the defects of the prior art, the embodiment of the utility model provides a bearing sealing device of a powder concentrator, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a powder concentrator bearing sealing device, includes the powder concentrator organism, the internally mounted of powder concentrator organism has the bearing seal shell, the inside of bearing seal shell is provided with bearing portion, the inboard of bearing portion inserts along vertical direction and is equipped with the main shaft, the external connection that one end of main shaft extends to the powder concentrator organism has the shaft coupling, the other end of shaft coupling is connected with the drive shaft, the outside of main shaft is located upper and lower both ends position department of bearing seal shell and has cup jointed upper seal cover and lower seal cover respectively, the outer wall connection of bearing seal shell has the port, the end portion of port is connected with the twist cap, the inside of bearing seal shell is provided with the oil guide passageway with the inside intercommunication of port, the inside intercommunication of one end and bearing portion of oil guide passageway.

As a further improvement of the technical scheme of the utility model, a through hole for installing a bearing sealing shell is arranged in the powder concentrator body, and the edge of the bearing sealing shell is welded with the inner wall of the through hole in a seamless way.

As a further improvement of the technical scheme of the utility model, annular rubber clamping blocks are arranged at the bottom edge of the upper sealing cover and the top edge of the lower sealing cover, the annular rubber clamping blocks are adhered and fixed with the upper sealing cover and the lower sealing cover through adhesives, and the upper end and the lower end of the bearing sealing shell correspond to annular clamping grooves matched with the outer parts of the annular rubber clamping blocks in structure.

As a further improvement of the technical scheme of the utility model, the vertical sections of the annular rubber clamping block and the annular clamping groove are of trapezoid structures.

As a further improvement of the technical scheme of the utility model, the inside of the upper sealing cover and the inside of the lower sealing cover are respectively provided with a perforation for the spindle to pass through, and the inner wall of each perforation is provided with a rubber sealing ring.

As a further improvement of the technical scheme of the utility model, the edges of the upper sealing cover and the lower sealing cover are respectively provided with a convex ring, the convex rings are fixedly connected with the end parts of the bearing sealing shell through a plurality of bolts, and a plurality of connecting holes for the bolt connection are formed in the convex rings.

As a further improvement of the technical scheme of the utility model, the edge of the port is welded and fixed with the outer wall of the bearing enclosure, the outer surface of the port is provided with external threads, the inner wall of the screw cap is provided with an internal thread groove matched with the external thread structure, and the screw cap is connected with the port through threads.

The utility model has the beneficial effects that:

the sealing structure of the bearing is simpler in structural design, the protection performance of the bearing to the internal bearing can be effectively improved by the aid of the arranged bearing sealing shell, when the bearing is used, the movable performance of the balls in the bearing part is kept by opening the screwing cover and injecting lubricating oil, and the arranged screwing cover is convenient to assemble and disassemble and cannot leak oil;

2. through having cup jointed upper cover and lower closing cap respectively in the outside of main shaft is located the upper and lower both ends position department of bearing envelope, the bottom edge department of upper cover and the top edge department of lower closing cap all are provided with annular rubber fixture block to correspond the outside equal structure matched annular draw-in groove of annular rubber fixture block at the upper and lower both ends of bearing envelope, utilize annular rubber fixture block and the annular draw-in groove of structure matched that sets up, be convenient for make upper cover and lower closing cap and bearing envelope junction keep sealing performance, and the upper cover and the lower closing cap of design are convenient to dismantle the processing, can dismantle under the poor condition of annular rubber fixture block ageing sealing performance and change, and then keep the sealing performance of bearing junction.

Drawings

Fig. 1 is a cross-sectional view of the present utility model.

Fig. 2 is a schematic view of the external structure of the present utility model.

Fig. 3 is an enlarged view of the portion a of fig. 1 in accordance with the present utility model.

FIG. 4 is a schematic view of the upper cover of the present utility model.

The reference numerals are: 1. a powder selecting machine body; 2. a bearing enclosure; 3. a bearing part; 4. a main shaft; 5. a coupling; 6. a drive shaft; 7. an upper cover; 8. a lower cover; 9. perforating; 10. an annular rubber clamping block; 11. an oil guide channel; 12. a port; 13. screwing the cover; 14. a convex ring; 15. and a connection hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The bearing sealing device of the powder concentrator comprises a concentrator body 1, a bearing sealing shell 2 is arranged in the concentrator body 1, a bearing part 3 is arranged in the bearing sealing shell 2, a main shaft 4 is inserted into the inner side of the bearing part 3 along the vertical direction, one end part of the main shaft 4 extends to the outer part of the concentrator body 1 and is connected with a coupling 5, the other end of the coupling 5 is connected with a driving shaft 6, an upper sealing cover 7 and a lower sealing cover 8 are respectively sleeved on the outer part of the main shaft 4 at the upper end part and the lower end part of the bearing sealing shell 2, a port 12 is connected to the outer wall of the bearing sealing shell 2, a screwing cover 13 is connected to the end part of the port 12, an oil guide channel 11 communicated with the inner part of the port 12 is arranged in the bearing sealing shell 2, and one end part of the oil guide channel 11 is communicated with the inner part of the bearing part 3.

As shown in fig. 1-2, a through hole for installing a bearing shell 2 is arranged in the powder concentrator body 1, and the edge of the bearing shell 2 is welded with the inner wall of the through hole in a seamless manner, so that the bearing shell 2 is connected and fixed with the powder concentrator body 1.

As shown in fig. 1 and fig. 3-4, the bottom edge of the upper sealing cover 7 and the top edge of the lower sealing cover 8 are respectively provided with an annular rubber clamping block 10, the annular rubber clamping blocks 10 are adhered and fixed with the upper sealing cover 7 and the lower sealing cover 8 through adhesives, the upper end and the lower end of the bearing sealing shell 2 correspond to annular clamping grooves matched with the outer parts of the annular rubber clamping blocks 10 in structure, the vertical sections of the annular rubber clamping blocks 10 and the annular clamping grooves are of trapezoid structures, and the joint of the upper sealing cover 7 and the lower sealing cover 8 and the bearing sealing shell 2 can be kept sealing performance conveniently.

As shown in fig. 1-4, the inside of the upper sealing cover 7 and the lower sealing cover 8 are respectively provided with a through hole 9 for the spindle 4 to pass through, the inner wall of each through hole 9 is provided with a rubber sealing ring, the edges of the upper sealing cover 7 and the lower sealing cover 8 are respectively provided with a convex ring 14, the convex rings 14 are fixedly connected with the end parts of the bearing sealing shell 2 through a plurality of bolts, and a plurality of connecting holes 15 for the bolt connection are formed in the convex rings 14, so that the upper sealing cover 7, the lower sealing cover 8 and the bearing sealing shell 2 can be conveniently assembled and disassembled.

As shown in fig. 1-3, the edge of the port 12 is welded and fixed with the outer wall of the bearing enclosure 2, the outer surface of the port 12 is provided with external threads, the inner wall of the screw cap 13 is provided with an internal thread groove matched with the external thread structure, the screw cap 13 is connected with the port 12 through threads, connection and disassembly between the screw cap 13 and the port 12 are facilitated, and further the screw cap 13 can be opened to inject lubricating oil to maintain the activity of balls in the bearing part 3 when in use.

Working principle: the utility model designs a bearing sealing device of a powder concentrator, the specific structure is shown in the accompanying drawings 1-4 of the specification, the whole sealing structure of the bearing is simpler in design, the arranged bearing sealing shell 2 can effectively improve the protection performance of the internal bearing, and the arranged oiling channel structure is utilized, namely, the oil guide channel 11 arranged on the bearing sealing shell 2 is utilized, when the bearing sealing device is used, the screwing cover 13 is opened to inject lubricating oil to keep the movable performance of the balls in the bearing part 3, the arranged screwing cover 13 is convenient to assemble and disassemble, no oil leakage phenomenon occurs, meanwhile, the upper sealing cover 7 and the lower sealing cover 8 are respectively sleeved at the positions of the outer part of the main shaft 4 at the upper end and the lower end of the bearing sealing shell 2, the annular rubber clamping block 10 is respectively arranged at the bottom edge of the upper sealing cover 7 and the top edge of the lower sealing cover 8, the annular clamping block 10 is correspondingly matched with the annular clamping block 10 at the upper end and the lower end of the bearing sealing shell 2, the vertical sections of the annular rubber clamping block 10 and the annular clamping block are both trapezoidal structures, the upper sealing cover 7 and the lower sealing cover 8 are respectively connected with the annular sealing cover 8 through fixing the annular clamping blocks at the positions of the upper sealing cover 2, and the sealing cover 8 is convenient to change the sealing performance of the sealing cover is realized, and the sealing performance of the sealing cover is convenient to be replaced by the sealing cover is realized.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a powder concentrator bearing sealing device, includes powder concentrator organism (1), its characterized in that: the powder concentrator is characterized in that a bearing enclosure (2) is arranged in the powder concentrator body (1), a bearing part (3) is arranged in the bearing enclosure (2), a main shaft (4) is inserted into the inner side of the bearing part (3) along the vertical direction, a shaft coupling (5) is connected to the outer part of the main shaft (4) and extends to the powder concentrator body (1), a driving shaft (6) is connected to the other end of the shaft coupling (5), an upper sealing cover (7) and a lower sealing cover (8) are respectively sleeved at the positions of the upper end and the lower end of the bearing enclosure (2) outside the main shaft (4), a port (12) is connected to the outer wall of the bearing enclosure (2), a screwing cover (13) is connected to the end part of the port (12), and an oil guide channel (11) communicated with the inner part of the port (12) is arranged in the bearing enclosure (2), and one end part of the oil guide channel (11) is communicated with the inner part of the bearing part (3).

2. A powder concentrator bearing seal assembly as defined in claim 1 wherein: the powder concentrator is characterized in that a through hole for installing a bearing shell (2) is formed in the powder concentrator body (1), and the edge of the bearing shell (2) is welded with the inner wall of the through hole in a seamless mode.

3. A powder concentrator bearing seal assembly as defined in claim 1 wherein: the bearing sealing device is characterized in that annular rubber clamping blocks (10) are arranged at the bottom edge of the upper sealing cover (7) and the top edge of the lower sealing cover (8), the annular rubber clamping blocks (10) are adhered and fixed with the upper sealing cover (7) and the lower sealing cover (8) through adhesives, and the upper end and the lower end of the bearing sealing shell (2) correspond to annular clamping grooves matched with the annular rubber clamping blocks (10) in an external structure.

4. A powder concentrator bearing seal assembly as defined in claim 3 wherein: the vertical sections of the annular rubber clamping blocks (10) and the annular clamping grooves are of trapezoid structures.

5. A powder concentrator bearing seal assembly as defined in claim 1 wherein: the inside of upper closing cap (7) and lower closing cap (8) all is provided with perforation (9) that are used for main shaft (4) to pass, the inner wall of perforation (9) is provided with rubber seal.

6. A powder concentrator bearing seal assembly as defined in claim 1 wherein: the edge of upper closing cap (7) and lower closing cap (8) all is provided with bulge loop (14), pass through a plurality of bolt fixed connection between bulge loop (14) and the tip of bearing seal shell (2), the inside of bulge loop (14) is provided with a plurality of connecting hole (15) that are used for bolted connection.

7. A powder concentrator bearing seal assembly as defined in claim 1 wherein: the edge of the port (12) is welded and fixed with the outer wall of the bearing enclosure (2), an external thread is arranged on the outer surface of the port (12), an internal thread groove matched with the external thread structure is formed in the inner wall of the screw cap (13), and the screw cap (13) is connected with the port (12) through threads.