CN214424926U

CN214424926U - High-precision long-life cylindrical roller bearing for coal mill

Info

Publication number: CN214424926U
Application number: CN202120492098.2U
Authority: CN
Inventors: 王传新
Original assignee: Dalian Wazhou Electric Power Petrochemical Bearing Co ltd
Current assignee: Dalian Wazhou Electric Power Petrochemical Bearing Co ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-10-19
Anticipated expiration: 2031-03-09

Abstract

The utility model discloses a high-precision long-life cylindrical roller bearing for a coal mill, which comprises an outer ring, wherein a plurality of groups of rotating grooves are uniformly arranged on the inner wall of the outer ring, the inner part of each rotating groove is rotatably connected with a cylindrical roller, the inner wall at the rear side of the rotating groove is provided with an oil guide groove, the oil guide groove is in a ring shape, the oil collecting groove is arranged inside the upper end of the outer ring, the middle part of the inner wall at the bottom end of the oil collecting groove is penetrated and provided with an oil outlet hole, the device can guide lubricating oil in the oil collecting groove into the oil guide groove through the inner wall at the bottom end of the oil collecting groove, and the lubricating oil can be further guided into the rotating groove through the annular oil guide groove and the rotating groove, thereby the lubricating oil can be uniformly coated on the surface of the cylindrical roller in the rotating groove for lubricating operation, the cylindrical roller is prevented from being worn due to long-time rotation, and the friction force with the inner ring is increased, the stability, the use accuracy and the service life of the rotation of the inner ring are influenced.

Description

High-precision long-life cylindrical roller bearing for coal mill

Technical Field

The utility model relates to a cylindrical roller bearing, in particular to long-life cylindrical roller bearing of high accuracy for coal pulverizer belongs to bearing technical field.

Background

The cylindrical roller bearing has the advantages that the rollers are arranged in parallel, the spacing retainers or the isolating blocks are arranged between the rollers, the rollers can be prevented from inclining or rubbing with each other, the increase of the rotating torque is effectively prevented, the cylindrical rollers are in line contact with the roller paths, the radial load capacity is high, the cylindrical roller bearing is suitable for bearing heavy load and impact load and is also suitable for high-speed rotation, and the cylindrical roller bearing is widely applied to the mechanical field;

current cylindrical roller bearing function singleness is generally manual to paint lubricating oil, but is not enough even, uses cylindrical roller to produce wearing and tearing easily for a long time, influences inner circle pivoted stability, influences the use accuracy on the one hand, and on the other hand influences life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a long-life cylindrical roller bearing of high accuracy for coal pulverizer to solve the coal pulverizer cylindrical roller bearing on the existing market that above-mentioned background art provided, long-time the use, cylindrical roller produces wearing and tearing easily, and frictional force increases, influences inner circle pivoted stability, use accuracy and life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: including the outer lane, a plurality of groups of rotation groove have evenly been seted up to the inner wall of outer lane, the inside rotation that rotates the groove is connected with cylindrical roller, the rear side inner wall that rotates the groove has been seted up and has been led the oil groove, just it is ring shape to lead the oil groove, the oil trap has been seted up to the upper end inside of outer lane, the bottom inner wall middle part of oil trap runs through and has been seted up the oil outlet, the top inner wall middle part of oil trap runs through and has seted up the oiling mouth, the internal thread connection of oiling mouth has the end cap, the inboard of outer lane is provided with the inner circle, the outside and the cylindrical roller of inner circle rotate to be connected.

As an optimal technical scheme of the utility model, there is the filter plate oil sump bottom inner wall through bolt fixed mounting, just filter the screen plate and arrange the oil outlet in directly over.

As a preferred technical scheme of the utility model, the vertical transparent scale that is provided with in left side on oil trap top, and the front side of scale is provided with transparent protecting film.

As the utility model discloses a preferred technical scheme, the groove has been seted up and has been accomodate to the upper end of oiling mouth, the top of end cap is run through and is accomodate groove swing joint.

As a preferred technical scheme of the utility model, the lower extreme outer wall cover of end cap is equipped with the sealing washer, just the sealing washer cooperatees with the size of end cap.

As a preferred technical scheme of the utility model, the spread groove has been seted up to the upper surface of end cap, the spread groove is the cross.

Compared with the prior art, the beneficial effects of the utility model are that: twist off the end cap and pour into the oil trap through the oil filler point lubricating oil into, twist the end cap, the bottom inner wall through the oil trap runs through and has seted up the oil outlet, can be leading-in to leading the oil groove to the lubricating oil in the oil trap, lead oil groove and rotation groove intercommunication through annular, further can lead to the leading-in rotation inslot of lubricating oil, thereby even coating carries out lubricated operation on the cylindrical roller surface that rotates the inslot, avoid cylindrical roller to rotate for a long time and produce wearing and tearing, lead to the frictional force increase with the inner circle, influence inner circle pivoted stability, use accuracy and life.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a right side view of the structure of the present invention;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is a schematic view of the structure of the part a of the present invention.

In the figure: 1. an outer ring; 2. a rotating groove; 3. a cylindrical roller; 4. an oil guide groove; 5. an oil sump; 6. an oil outlet hole; 7. a bolt; 8. a filter screen plate; 9. an oil filling port; 10. a plug; 11. a seal ring; 12. a receiving groove; 13. connecting grooves; 14. a graduated scale; 15. and an inner ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the novel oil-guiding structure comprises an outer ring 1, wherein a plurality of groups of rotating grooves 2 are uniformly formed in the inner wall of the outer ring 1, cylindrical rollers 3 are rotatably connected in the rotating grooves 2, an oil guiding groove 4 is formed in the inner wall of the rear side of each rotating groove 2, the oil guiding groove 4 is circular, an oil collecting groove 5 is formed in the upper end of the outer ring 1, oil outlet holes 6 are formed in the middle of the inner wall of the bottom end of the oil collecting groove 5 in a penetrating manner, an oil filling opening 9 is formed in the middle of the inner wall of the top end of the oil collecting groove 5 in a penetrating manner, an end cap 10 is connected with the internal thread of the oil filling opening 9, an inner ring 15 is arranged on the inner side of the outer ring 1, the outer side of the inner ring 15 is rotatably connected with the cylindrical rollers 3, the oil outlet holes 6 are formed in the inner wall of the bottom end of the oil collecting groove 5 in a penetrating manner, lubricating oil in the oil collecting groove 5 can be guided into the oil guiding groove 4 and is communicated with the rotating grooves 2 through the circular shape, further, the lubricating oil can be introduced into the rotating groove 2, and the surface of the cylindrical roller 3 in the rotating groove 2 can be uniformly coated for lubricating operation.

Preferably, the inner wall of the bottom end of the oil collecting tank 5 is fixedly provided with a filter screen plate 8 through a bolt 7, the filter screen plate 8 is arranged right above the oil outlet 6, and the filter screen plate 8 is arranged specifically, so that lubricating oil in the oil collecting tank 5 can be filtered.

Preferably, the transparent graduated scale 14 is vertically arranged on the left side of the top end of the oil collecting tank 5, and the transparent protective film is arranged on the front side of the graduated scale 14, so that the content of lubricating oil in the oil collecting tank 5 can be conveniently observed, and timely supplement is facilitated.

Preferably, the upper end of the oil filling port 9 is provided with a containing groove 12, the top end of the plug 10 penetrates through the containing groove 12 to be movably connected, the containing groove 12 is convenient for containing the plug 10, and the plug 10 is prevented from interfering with installation and use of the device.

Preferably, the outer wall of the lower end of the plug 10 is sleeved with a sealing ring 11, and the sealing ring 11 is matched with the plug 10 in size, so that the sealing performance of the plug 10 is improved.

Preferably, the connecting groove 13 is formed in the upper surface of the plug 10, and the connecting groove 13 is cross-shaped, so that a worker can conveniently unscrew and install the plug 10 by using a screwdriver.

The working principle is as follows: screw off end cap 10 when using in oiling mouth 9 lubricating oil injection oil catch bowl 5, screw up end cap 10, bottom inner wall through oil catch bowl 5 runs through and has seted up oil outlet 6, can be leading-in to leading in the oil groove 4 the lubricating oil in the oil catch bowl 5, lead oil groove 4 and rotation groove 2 intercommunication through annular, further can be leading-in rotation groove 2 to lubricating oil, thereby even coating is lubricated operation on the 3 surfaces of cylindrical roller in rotation groove 2, avoid cylindrical roller 3 to rotate for a long time and produce wearing and tearing, lead to the increase with the frictional force of inner circle 15, influence inner circle 15 pivoted stability, use accuracy and life.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

Claims

1. A long-life cylindrical roller bearing of high accuracy for coal pulverizer, including outer lane (1), its characterized in that: the inner wall of outer lane (1) has evenly seted up a plurality of groups and has rotated groove (2), the inside rotation that rotates groove (2) is connected with cylindrical roller (3), the rear side inner wall that rotates groove (2) has been seted up and has been led oil groove (4), just it is ring shape to lead oil groove (4), oil trap (5) have been seted up to the upper end inside of outer lane (1), oil outlet (6) have been seted up in running through in the middle part of the bottom inner wall of oil trap (5), the top inner wall middle part of oil trap (5) runs through and has been seted up oiling mouth (9), the internal thread connection of oiling mouth (9) has end cap (10), the inboard of outer lane (1) is provided with inner circle (15), the outside and cylindrical roller (3) of inner circle (15) rotate and are connected.

2. The high-precision long-life cylindrical roller bearing for a coal pulverizer as claimed in claim 1, wherein: the oil collecting tank (5) bottom inner wall passes through bolt (7) fixed mounting has filter screen board (8), just filter screen board (8) are arranged in the dead top of oil outlet (6).

3. The high-precision long-life cylindrical roller bearing for a coal pulverizer as claimed in claim 1, wherein: the left side of the top end of the oil collecting tank (5) is vertically provided with a transparent graduated scale (14), and the front side of the graduated scale (14) is provided with a transparent protective film.

4. The high-precision long-life cylindrical roller bearing for a coal pulverizer as claimed in claim 1, wherein: the upper end of the oil filling port (9) is provided with a containing groove (12), and the top end of the plug (10) penetrates through the containing groove (12) and is movably connected.

5. The high-precision long-life cylindrical roller bearing for a coal pulverizer as claimed in claim 1, wherein: the outer wall of the lower end of the plug (10) is sleeved with a sealing ring (11), and the sealing ring (11) is matched with the plug (10) in size.

6. The high-precision long-life cylindrical roller bearing for a coal pulverizer as claimed in claim 1, wherein: the upper surface of end cap (10) has seted up spread groove (13), spread groove (13) are the cross.