CN214698833U

CN214698833U - Bearing water retaining ring of disc grinder

Info

Publication number: CN214698833U
Application number: CN202120793851.1U
Authority: CN
Inventors: 张�杰; 安克乾; 仲伟东; 李兆林
Original assignee: Zhejiang Shanying Paper Industry Co Ltd
Current assignee: Zhejiang Shanying Paper Industry Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-11-12
Anticipated expiration: 2031-04-16

Abstract

The utility model provides a disc mill bearing manger plate ring, it has solved the fixed inconvenient scheduling problem of manger plate ring, it includes the manger plate ring body that the semicircle ring body amalgamation that sets up by the symmetry formed, manger plate ring body cover is in the axis of rotation of disc mill and relative rather than the bearing gland of bearing room one side, the mounting hole that manger plate ring body center passes for supplying the axis of rotation, relative and the internal screw thread counter sink that has is opened respectively at the semicircle ring body both ends that the symmetry set up, threaded connection has fixing bolt between the counter sink of semicircle ring body, the mounting hole inboard of manger plate ring body is opened along circumference has the seal groove, install the sealing strip in the seal groove, leave the space between the bearing gland of manger plate ring body and bearing room. The utility model has the advantages of convenient installation, good sealing effect and the like.

Description

Bearing water retaining ring of disc grinder

Technical Field

The utility model belongs to the technical field of disc mill equipment, concretely relates to disc mill bearing manger plate ring.

Background

Disc mills, also known as disc mills or disc refiners. A continuous beating apparatus in the paper industry. Comprises a cast iron casing and a pair of or three metal or grindstone disks with knife grains carved on the surfaces. The pulp enters the disc space by gravity or pressure, is subjected to the beating action of friction and rubbing of the rotating disc and is discharged from the periphery of the grinding disc by centrifugal force. Several of them can be used in series. The sealing water pressure is low because the pulping sealing water is used for reuse and the scale in the pipeline is more. The dish grinds sealedly is that the packing is sealed, need enough pressurized's sealing water to cool off and lubricate because of the form is special, the packing is sealed because the pressure of sealing water is not enough, it is poor with the cooling effect to lubricate, lead to the packing temperature high by burn out and lose sealed effect, equipment can appear the medium and leak, the medium is washed and can get into the bearing room through bearing seal department on the equipment, lubricating oil nature is polluted and is leaded to the bearing to damage, cause equipment fault rate, unusual shut down the extension, work load increases, cost of maintenance increases. In addition, the conventional waterproof ring is inconvenient to install and fix on the rotating shaft, and the installation stability with the rotating shaft cannot be fully guaranteed.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses a sealing device [201720964916.8] of an engine water pump shaft coupling bearing, which adopts the structure that the inner diameter of a water retaining ring protrudes into the bearing, the outer diameter of the water retaining ring protrudes into the bearing, and the water retaining ring is sealed with the inner diameter clearance of an outer ring; the inner lip of the sealing ring is inclined towards the inside of the bearing and is in interference fit with the shaft, the outer lip of the sealing ring is inclined towards the outside of the bearing and is in interference fit with the inner surface of the inner diameter bulge of the water retaining ring, and the side lip of the sealing ring is inclined towards the direction of the outer ring of the bearing and is in interference fit with the inner side wall of the water retaining ring; the water pump shaft connecting bearing is characterized in that one side of the impeller is installed on the engine water pump shaft connecting bearing, the outer side wall of the water retaining ring protrudes out of the bearing end face on one side of the water seal, and the outer side wall of the water retaining ring is sunken in the bearing end face on the other side of the engine water pump shaft connecting bearing.

The scheme solves the problem of insufficient sealing performance of the bearing to a certain extent, but the scheme still has many defects, such as inconvenient installation of the water retaining ring and the disc mill bearing.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a reasonable in design, convenient and fixed disc mill bearing manger plate ring of disc mill installation.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this disc mill bearing manger plate ring, include the manger plate ring body that the semicircle ring body amalgamation that sets up by the symmetry formed, manger plate ring body cover is relative in the axis of rotation of disc mill and rather than the bearing gland of bearing room one side, the mounting hole that manger plate ring body center was passed for supplying the axis of rotation, the semicircle ring body both ends that the symmetry set up are opened respectively and are had relative and have the internal screw thread counter sink, threaded connection has fixing bolt between the counter sink of semicircle ring body, the mounting hole inboard of manger plate ring body is opened along circumference has the seal groove, install the sealing strip in the seal groove, leave the space between the bearing gland of manger plate ring body and bearing room. The semicircular ring body in the water retaining ring body can be separated, the water retaining ring body is conveniently and directly mounted on an assembled disc mill, and the sealing strip and the sealing groove on the inner side of the water retaining ring body prevent a medium from leaking and flowing into a bearing chamber.

In the bearing water retaining ring of the disc grinder, the mounting holes at the two ends of the semicircular ring body, which are close to the water retaining ring body, are provided with opposite clamping grooves, the sealing strip is in a circular ring shape, and the side surface of the sealing strip is provided with clamping bulges which are fixedly pressed with the clamping grooves. The joint groove is matched with the joint bulge, and the connection stability of the sealing groove and the sealing strip is guaranteed.

In the bearing water retaining ring of the disc grinder, one side of the semicircular ring body opposite to the two ends is provided with a plurality of mutually meshed limiting grooves and limiting strips, and the limiting grooves and the limiting strips are respectively arranged in a crossed manner. The limiting groove and the limiting strip facilitate the positioning of the semicircular ring body, and the dislocation looseness during rotation is avoided.

In the disc mill bearing water retaining ring, an adhesion layer is arranged between the sealing groove of the water retaining ring body and the sealing strip. The adhesion layer further improves the connection stability of the sealing strip, so that the sealing performance of the sealing strip on the inner side of the water retaining ring is improved.

In the bearing water retaining ring of the disc mill, one side of the mounting hole of the water retaining ring body, which is far away from the bearing gland, is provided with a limit ring which is convex relative to the mounting hole. The contact area of the mounting hole and the rotating shaft is increased by the limiting ring.

In the bearing water retaining ring of the disc grinder, the side surface of the limiting ring is provided with a plurality of connecting holes opposite to the side surface of the rotating shaft. The connecting holes on the side face of the limiting ring are kept fixed with the rotating shaft through the pin shaft, so that the water retaining ring and the rotating shaft are kept to rotate synchronously.

In the disc mill bearing water retaining ring, the outer side of the semi-circular ring body of the water retaining ring body is a conical surface, the outer diameter of one side, away from the bearing chamber, of the water retaining ring body is smaller than that of the other side of the water retaining ring body, and a fillet is formed at the outer side corner of the water retaining ring body. The outer side of the water retaining ring body is conical, and the end with larger area is kept opposite to the bearing chamber.

In the bearing water retaining ring of the disc mill, the inner side of the mounting hole of the water retaining ring body is a conical surface, the outer diameter of the mounting hole close to one side far away from the bearing chamber is smaller than the outer diameter of the other side, and a fillet is formed at the edge of the inner side of the mounting hole. The inner side of the mounting hole is conical and is opposite to the rotating bearing, so that lubricating oil in the bearing is well protected, and pollution of the lubricating oil is avoided.

In the bearing water retaining ring of the disc grinder, opposite step surfaces are arranged between opposite sides of the counter bores, sealing blocks are pressed and fixed between the step surfaces, and bolt holes for fixing bolts to penetrate through are formed in the centers of the sealing blocks. The sealing block plays a role in shock absorption and is convenient for fixing the bolt to be installed and fixed.

In the bearing water retaining ring of the disc mill, the outer ring of one side of the water retaining ring body, which is opposite to the bearing gland, is provided with an outer edge. The outer edge increases the protection area of the water retaining ring body to the bearing cover, and plays a good role in protecting the bearing.

Compared with the prior art, the utility model has the advantages of: the installation is convenient, and the installation stability with the disc grinder is better; the bearing gland of the bearing chamber is opposite to the water retaining ring body, so that the bearing lubricating oil is prevented from being polluted; the seal groove on the inner side of the water retaining ring body prevents media from leaking and flowing into the bearing chamber, and the operation stability of the disc grinder is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the semicircular ring body of the present invention;

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

in the figure, the water retaining ring body 1, the mounting hole 11, the sealing groove 12, the sealing strip 13, the semi-circular ring body 2, the counter bore 21, the fixing bolt 22, the clamping groove 23, the clamping protrusion 24, the limiting groove 25, the limiting strip 26, the adhesion layer 27, the disc grinder 3, the rotating shaft 31, the bearing chamber 32, the bearing gland 33, the outer edge 34, the limiting ring 4, the connecting hole 41, the step surface 5, the sealing block 51 and the bolt hole 52.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, the bearing water retaining ring for the disc mill comprises a water retaining ring body 1 formed by splicing symmetrical semi-circular ring bodies 2, wherein the water retaining ring body 1 is sleeved on a rotating shaft 31 of the disc mill 3 and is opposite to a bearing gland 33 on one side of a bearing chamber 32, the center of the water retaining ring body 1 is a mounting hole 11 for the rotating shaft 31 to pass through, two ends of the symmetrical semi-circular ring bodies 2 are respectively provided with a counter sink 21 which is opposite and has an internal thread, a fixing bolt 22 is in threaded connection between the counter sink 21 of the semi-circular ring bodies 2, the inner side of the mounting hole 11 of the water retaining ring body 1 is provided with a sealing groove 12 along the circumferential direction, a sealing strip 13 is installed in the sealing groove 12, and a gap is reserved between the water retaining ring body 1 and the bearing gland 33 of the bearing chamber 32. The semicircular ring body 2 in the water retaining ring body 1 is disassembled and then folded on the rotating shaft 31 of the disc grinder 3, the water retaining ring body is screwed and fixed through the fixing bolt 22, the sealing strip 13 on the inner side of the water retaining ring body 1 is clamped and fixed with the outer side of the rotating shaft 31, the medium of the disc grinder 3 is prevented from leaking and flowing into the bearing chamber 32, a gap is reserved between the water retaining ring body 1 and the bearing gland 33, and the normal rotation of the water retaining ring body 1 is not influenced.

Specifically, the mounting hole 11 that the semicircle ring body 2 both ends are close to the manger plate ring body 1 is opened and is had relative joint groove 23, and sealing strip 13 is the ring form and the side is provided with and compresses tightly fixed joint arch 24 with joint groove 23. The clamping grooves 23 at the two ends of the semi-circular ring body 2 are clamped and fixed with the clamping bulges 24 outside the sealing strips 13,

deeply, a plurality of mutually meshed limiting grooves 25 and limiting strips 26 are arranged on the opposite sides of the two ends of the semicircular ring body 2, and the limiting grooves 25 and the limiting strips 26 are respectively arranged in a crossed manner. After the limiting groove 25 and the limiting strip 26 are mutually inserted and meshed, the fixing bolt 22 is fixed with the counter sink 21, and the semi-annular body 2 is ensured not to be loosened.

Further, an adhesion layer 27 is arranged between the sealing groove 12 of the water retaining ring body 1 and the sealing strip 13. The adhesive layer 27 integrally connects the seal groove 12 and the seal strip 13, and fills a gap between the seal groove 12 and the seal strip 13.

Furthermore, a side of the mounting hole 11 of the water retaining ring body 1 away from the bearing gland 33 is provided with a limiting ring 4 protruding relative to the side. The limiting ring 4 is fixed with the semi-circular ring body 2 of the water retaining ring body 1, and the axial stability of the water retaining ring body 1 is ensured.

In addition, the side of the stop collar 4 is provided with a plurality of connecting holes 41 opposite to the side of the rotating shaft 31. The connecting holes 41 can be fixed by a pin or a clamp to limit the axial position of the water retaining ring body 1.

Meanwhile, the outer side of the semicircular ring body 2 of the water retaining ring body 1 is a conical surface, the outer diameter of one side, away from the bearing chamber 32, of the water retaining ring body 1 is smaller than that of the other side, and a fillet is formed at the outer side edge of the water retaining ring body 1.

As can be seen, the inner side of the mounting hole 11 of the water retaining ring body 1 is a conical surface, the outer diameter of one side of the mounting hole 11 close to the bearing chamber 32 is smaller than that of the other side, and a fillet is formed at the inner side edge of the mounting hole 11. The inner side and the outer side of the water retaining ring body 1 are respectively in a conical shape, so that the protection range of the water retaining ring body 1 to the bearing cover 33 is enlarged.

Obviously, opposite step surfaces 5 are arranged between opposite sides of the countersunk holes 21, a sealing block 51 is fixedly pressed between the step surfaces 5, and a bolt hole 52 for the fixing bolt 22 to pass through is arranged in the center of the sealing block 51. The sealing block 51 is cylindrical and is sleeved in the middle of the fixing bolt 22, and applies a certain pretightening force to the step surface 5.

Preferably, the outer ring of the water retaining ring body 1 on the side opposite to the bearing gland 33 is provided with an outer edge 34. The outer edge 34 is distributed along the circumferential direction of the water retaining ring body 1 and covers the bearing gland 33.

In summary, the principle of the present embodiment is: the semi-circular ring body 2 in the water retaining ring body 1 is pressed and fixed on the rotating shaft 31 through the fixing bolt 22, the sealing strip 13 on the inner side of the semi-circular ring body is attached and pressed with the rotating shaft 31, and the water retaining ring body 1 and the rotating shaft 31 are kept to rotate synchronously.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the water deflector ring body 1, the mounting hole 11, the sealing groove 12, the sealing strip 13, the semi-circular ring body 2, the counter bore 21, the fixing bolt 22, the clamping groove 23, the clamping protrusion 24, the limiting groove 25, the limiting strip 26, the adhesion layer 27, the disc grinder 3, the rotating shaft 31, the bearing chamber 32, the bearing gland 33, the outer rim 34, the limiting ring 4, the connecting hole 41, the step surface 5, the sealing block 51, the bolt hole 52 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A bearing water retaining ring of a disc mill comprises a water retaining ring body (1) formed by splicing symmetrically arranged semi-circular ring bodies (2), the water retaining ring body (1) is sleeved on a rotating shaft (31) of the disc grinder (3) and is opposite to a bearing gland (33) at one side of a bearing chamber (32) of the disc grinder, it is characterized in that the center of the water retaining ring body (1) is provided with a mounting hole (11) for a rotating shaft (31) to pass through, two ends of the symmetrically arranged semi-circular ring body (2) are respectively provided with opposite countersunk holes (21) with internal threads, a fixing bolt (22) is connected between the counter bores (21) of the semi-circular ring body (2) in a threaded manner, a sealing groove (12) is arranged on the inner side of the mounting hole (11) of the water retaining ring body (1) along the circumferential direction, seal groove (12) in install sealing strip (13), water retaining ring body (1) and bearing cover (33) of bearing room (32) between leave the space.

2. The disc mill bearing water retaining ring as defined in claim 1, wherein opposite clamping grooves (23) are formed at the two ends of the semicircular ring body (2) near the mounting holes (11) of the water retaining ring body (1), the sealing strip (13) is circular and has clamping protrusions (24) on the side thereof for pressing and fixing with the clamping grooves (23).

3. The bearing water retaining ring of the disc mill according to claim 1, wherein a plurality of mutually meshed limiting grooves (25) and limiting strips (26) are formed on the opposite sides of the two ends of the semi-circular ring body (2), and the limiting grooves (25) and the limiting strips (26) are respectively arranged in a crossed manner.

4. The disc mill bearing water retaining ring according to claim 1, characterized in that an adhesion layer (27) is arranged between the sealing groove (12) of the water retaining ring body (1) and the sealing strip (13).

5. The disc mill bearing water retaining ring as claimed in claim 1, wherein a limiting ring (4) protruding relative to the water retaining ring is arranged on one side of the mounting hole (11) of the water retaining ring body (1) far away from the bearing gland (33).

6. The bearing retaining ring of the disc mill according to claim 5, characterized in that the side of the limiting ring (4) is provided with a plurality of connecting holes (41) opposite to the side of the rotating shaft (31).

7. The disc mill bearing water retaining ring as claimed in claim 1, wherein the outer side of the semi-circular ring body (2) of the water retaining ring body (1) is a conical surface, the outer diameter of one side of the water retaining ring body (1) far away from the bearing chamber (32) is smaller than that of the other side, and a fillet is formed at the outer side corner of the water retaining ring body (1).

8. The bearing water retaining ring of the disc mill according to claim 7, wherein the inner side of the mounting hole (11) of the water retaining ring body (1) is a conical surface, the outer diameter of the mounting hole (11) close to one side far away from the bearing chamber (32) is smaller than that of the other side, and a fillet is formed at the inner side corner of the mounting hole (11).

9. The bearing splash ring of the disc mill according to claim 1, characterized in that opposite step surfaces (5) are arranged between opposite sides of the counter bore (21), a sealing block (51) is fixed between the step surfaces (5) in a pressing mode, and a bolt hole (52) for a fixing bolt (22) to pass through is formed in the center of the sealing block (51).

10. The disc mill bearing water retaining ring as claimed in claim 1, wherein an outer rim (34) is arranged on an outer ring of a side of the water retaining ring body (1) opposite to the bearing gland (33).