CN216025277U

CN216025277U - Rolling mill

Info

Publication number: CN216025277U
Application number: CN202121764577.1U
Authority: CN
Inventors: 王金华
Original assignee: SHANDONG WEIYUAN NEW MATERIAL EQUIPMENT CO Ltd
Current assignee: SHANDONG WEIYUAN NEW MATERIAL EQUIPMENT CO Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-03-15
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a rolling mill which comprises a rack, wherein a barrel body is arranged on the rack, a main shaft positioned in the barrel body is rotatably arranged on the rack, a wear-resisting ring is fixedly arranged on the inner wall of the barrel body, a grinding roller support is fixedly arranged on the main shaft, a plurality of groups of mounting grooves are arranged on the grinding roller support, each group of mounting grooves comprises a plurality of mounting grooves which are vertically arranged on the grinding roller support, roll shafts which are in one-to-one correspondence with the mounting grooves are arranged among the grinding rollers, the roll shafts are arranged on the grinding roller support, the axial direction of each roll shaft is parallel to the axial direction of the main shaft, the roll shafts penetrate through the mounting grooves in the same group from top to bottom, wear-resisting rollers are arranged on the roll shafts, the wear-resisting rollers are provided with center holes, the roll shafts penetrate through the center holes, and the center holes are in clearance fit with the roll shafts. The wear-resisting roller deviates outwards under the action of centrifugal force in the rotating process of the grinding roller bracket, and materials between the wear-resisting roller and the wear-resisting ring are rolled.

Description

Rolling mill

Technical Field

The utility model relates to a rolling mill.

Background

The work efficiency of roll-in mill among the prior art is lower, and the working process is in addition great because the wearing and tearing that wear ring received, in addition adopts integral wear ring at present, is provided with the wear-resisting groove of multilayer on the same wear ring, when a wear-resisting groove wearing and tearing are great, need carry out the whole change to wear ring, and the installation of wear ring is dismantled comparatively inconveniently simultaneously. And the existing cylinder body adopts an integrally formed structure, and the installation of the cylinder body and the replacement and maintenance of the wear-resistant roller, the grinding roller bracket and the main shaft are inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the utility model provides the roll mill which has high material roll-in treatment efficiency and is convenient for wear-resistant replacement installation and maintenance, and replacement and maintenance of the wear-resistant roll, the grinding roll bracket and the main shaft.

The technical scheme of the utility model is as follows: the utility model provides a roll-in mill, includes the frame, install the barrel in the frame, rotate in the frame and install and be located main shaft in the barrel, barrel inner wall fixed mounting has wear ring, fixed mounting has the grinding roller support on the main shaft, be equipped with the multiunit mounting groove on the grinding roller support, every group mounting groove includes a plurality of the mounting groove of arranging from top to bottom on the grinding roller support, still be equipped with between the grinding roller with each group the mounting groove one-to-one the roller, the roller is installed on the grinding roller support, the axis direction of roller is on a parallel with the axis direction of main shaft, the roller from the top down passes each in the same group the mounting groove, be equipped with wear-resisting roller on the roller, wear-resisting roller has the centre bore, the roller passes the centre bore with roller clearance fit.

As a preferred technical scheme, an air duct which penetrates through the barrel up and down is arranged on the barrel wall of the barrel, and a wind wheel which is positioned below the grinding roller bracket is also arranged on the machine frame.

As a preferable technical scheme, the inner wall of the wear-resistant ring is provided with a wear-resistant groove, the wear-resistant groove corresponds to the wear-resistant roller, one side of the mounting groove, which is close to the main shaft, is provided with a grinding material groove for the wear-resistant roller to enter, the lower groove wall of the grinding material groove is inclined towards the lower oblique direction, and the upper groove wall of the grinding material groove is inclined towards the upper oblique direction.

Preferably, an arc transition surface is arranged between the wear-resistant groove and the inner wall of the wear-resistant ring.

As a preferred technical scheme, the wind wheel is fixedly installed on the main shaft.

As a preferred technical solution, the outer edge of the wind wheel is located inside the wind tunnel.

As a preferred technical scheme, a wear-resistant pad sleeved outside the roller shaft is arranged between the roller shaft and the grinding roller support, and the wear-resistant pad is detachably mounted on the grinding roller support.

Preferably, the wear-resistant ring has a key groove on its outer circumferential surface.

Preferably, the wear-resistant ring is provided in plurality, each wear-resistant ring is stacked together, and the axes of the wear-resistant rings coincide.

As a preferable technical scheme, the cylinder comprises at least two parts of cylinders, and splicing seams of the adjacent parts of cylinders are parallel to the axis of the cylinder.

Due to the adoption of the technical scheme, the roll mill comprises a frame, a cylinder body is arranged on the frame, a main shaft positioned in the cylinder body is rotatably arranged on the frame, a wear-resistant ring is fixedly arranged on the inner wall of the cylinder body, the main shaft is fixedly provided with a grinding roller bracket, the grinding roller bracket is provided with a plurality of groups of mounting grooves, each group of mounting grooves comprises a plurality of mounting grooves which are arranged up and down on the grinding roller bracket, the roll shafts which are in one-to-one correspondence with the mounting grooves are arranged between the grinding rolls and are mounted on the grinding roll bracket, the axial direction of the roll shaft is parallel to the axial direction of the main shaft, the roll shaft passes through the installation grooves in the same group from top to bottom, the roll shaft is provided with a wear-resistant roll, the wear-resistant roll is provided with a central hole, the roll shaft penetrates through the central hole, and the central hole is in clearance fit with the roll shaft. The wear-resisting roller deviates outwards under the action of centrifugal force in the rotating process of the grinding roller bracket, and materials between the wear-resisting roller and the wear-resisting ring are rolled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a cartridge in an embodiment of the utility model;

FIG. 3 is a cross-sectional view of a wear ring in an embodiment of the present invention;

fig. 4 is a partial enlarged view at I in fig. 3.

Detailed Description

As shown in fig. 1, 2, 3 and 4, a roll mill comprises a frame, wherein a cylinder 1 is installed on the frame, a main shaft 2 located in the cylinder 1 is installed on the frame in a rotating manner, wear-resistant rings 3 are fixedly installed on the inner wall of the cylinder 1, a grinding roller support 4 is fixedly installed on the main shaft 2, a plurality of sets of installation grooves 11 are arranged on the grinding roller support 4, each set of installation grooves comprises a plurality of installation grooves which are vertically arranged on the grinding roller support, roll shafts which correspond to the installation grooves in each set in a one-to-one manner are further arranged between the grinding rollers and are installed on the grinding roller support, the axial direction of each roll shaft 5 is parallel to the axial direction of the main shaft 2, the roll shafts 5 penetrate through the installation grooves 11 in the same set from top to bottom, wear-resistant rollers 6 are arranged on the roll shafts 5, each wear-resistant roller 6 is provided with a central hole 7, and each roll shaft 6 penetrates through the central hole, the central hole 7 is in clearance fit with the roll shaft 5.

As shown in figure 1, a wear-resistant pad sleeved outside the roll shaft is arranged between the roll shaft and the grinding roller bracket, and the wear-resistant pad 12 is detachably arranged on the grinding roller bracket. The roller shaft is taken down from the wear-resistant support, and the wear-resistant pad can be replaced, so that the cost pressure caused by the whole replacement of the grinding roller support when the grinding roller support is abraded greatly is avoided.

As shown in fig. 1, the inner wall of the wear-resistant ring 3 is provided with a wear-resistant groove 8, the wear-resistant groove 8 corresponds to the wear-resistant roller 6, when the grinding roller support 4 rotates, the wear-resistant roller 6 is tightly attached to the wear-resistant groove 8, one side of the mounting groove, which is close to the main shaft, is provided with an abrasive groove 15 for the wear-resistant roller to enter, the lower groove wall of the abrasive groove is inclined obliquely downward, and the upper groove wall of the abrasive groove is inclined obliquely upward. The abrasion-resistant roller deviates outwards under the action of centrifugal force in the rotating process of the grinding roller bracket, and materials between the abrasion-resistant roller and the abrasion-resistant ring and between the abrasion-resistant roller and the abrasive groove are rolled.

As shown in fig. 1 and 2, an air duct 9 penetrating the cylinder up and down is arranged on the cylinder wall of the cylinder, and a wind wheel 10 positioned below the grinding roller bracket is also arranged on the machine frame. The barrel comprises at least two parts, and the splicing seams of the adjacent barrels are parallel to the axis of the barrel. Under the negative pressure effect, from the bottom air inlet of equipment, to smashing the regional effect of cooling down that plays (smashing the in-process grinding roller and can producing a large amount of heats to rolling of bed of material). The crushed materials are conveyed to the bottom of the middle cylinder under the action of the wind wheel and are pumped away along the air channel under the action of negative pressure. The air channel, namely the channel of the material, is also a measure for cooling the equipment. The barrel comprises at least two parts, the splicing seams of the adjacent barrels are parallel to the axis of the barrel, a split structure is adopted, the disassembly and the assembly are convenient, and the assembly and the maintenance of a wear-resistant roller, a wear-resistant ring, a roller shaft and the like are convenient.

As shown in fig. 3 and 4, a circular arc transition surface 17 is provided between the wear-resistant groove 8 and the inner wall of the wear-resistant ring 3. The flow speed of the materials is improved, and the materials are prevented from being continuously rolled in the wear-resistant grooves to form hardening.

As shown in fig. 1, the wind wheel 10 is fixedly mounted on the main shaft 2.

The outer edge of the wind wheel 10 is positioned at the inner side of the air duct 9.

As shown in fig. 3, the wear ring has a key groove 16 on its outer circumferential surface. The keyway prevents the wear ring from moving with the barrel.

The rotor comprises an upper blade 13 and a lower blade 14.

As shown in fig. 1 and 3, the wear-resistant ring 3 is provided in plurality, and the wear-resistant rings 3 are stacked together with their axes coinciding with each other. The disassembly and assembly are convenient, and the maintenance cost is effectively reduced.

As shown in fig. 2, the cylinder comprises at least two partial cylinders, and the splicing seams of the adjacent partial cylinders are parallel to the axis of the cylinder.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a roll-in mill, its characterized in that, includes the frame, install the barrel in the frame, rotate in the frame and install and be located main shaft in the barrel, barrel inner wall fixed mounting has wear ring, fixed mounting has the grinding roller support on the main shaft, be equipped with the multiunit mounting groove on the grinding roller support, every group mounting groove includes a plurality of mounting grooves of arranging from top to bottom on the grinding roller support, still be equipped with between the grinding roller with each group the roller of mounting groove one-to-one, the roller is installed on the grinding roller support, the axis direction of roller is on a parallel with the axis direction of main shaft, the roller from the top down passes each in the same group the mounting groove, be equipped with wear-resisting roller on the roller, wear-resisting roller has the centre bore, the roller passes the centre bore and roller clearance fit.

2. The roller mill according to claim 1, wherein the cylinder wall of the cylinder is provided with an air duct which vertically penetrates through the cylinder, and the machine frame is further provided with a wind wheel which is positioned below the grinding roller bracket.

3. The roller mill according to claim 1, wherein the inner wall of the wear-resistant ring is provided with a wear-resistant groove corresponding to the wear-resistant roller, the side of the mounting groove adjacent to the main shaft is provided with an abrasive groove for the wear-resistant roller to enter, the lower groove wall of the abrasive groove is inclined obliquely downward, and the upper groove wall of the abrasive groove is inclined obliquely upward.

4. The roll mill of claim 3 wherein a radiused transition surface is provided between the wear groove and the inner wall of the wear ring.

5. A roller mill according to claim 2, wherein the wind wheel is fixedly mounted on the main shaft.

6. A roller mill according to claim 5, characterized in that the outer edge of the wind wheel is located inside the air duct.

7. The roller mill of claim 1 wherein a wear pad is disposed between said roller shaft and said mill roller support and around said roller shaft, said wear pad being removably mounted to said mill roller support.

8. The roll mill of claim 1 wherein the wear ring is splined on its outer circumference.

9. The roll mill of claim 1 wherein said wear ring is in plurality, each of said wear rings being stacked together with the axes of each of said wear rings being coincident.

10. A roller mill according to any one of claims 1 to 9, wherein the barrel comprises at least two partial barrels, adjacent the partial barrel splice being parallel to the barrel axis.