CN212820195U

CN212820195U - Roller sleeve

Info

Publication number: CN212820195U
Application number: CN202021528699.6U
Authority: CN
Inventors: 周陶进
Original assignee: Chongqing Weishijie Energy Saving Technology Co ltd
Current assignee: Chongqing Weishijie Energy Saving Technology Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-03-30
Anticipated expiration: 2030-07-29

Abstract

The utility model provides a roller shell, roller shell surface is provided with a plurality of wear-resisting nails, and its improvement lies in: the outer end face of the wear-resistant nail is of a straight strip structure, and the axial direction of the wear-resistant nail is parallel to the axial direction of the roller sleeve; the wear-resistant nails form a plurality of protection rings, and each protection ring corresponds to a plurality of wear-resistant nails; wear-resistant nails corresponding to the single protection ring are distributed at equal intervals along the circumferential direction of the roller sleeve; the plurality of protection rings are distributed at zero intervals along the axial direction of the roller sleeve; the wear-resistant nails of the adjacent protection rings are arranged in a staggered manner. The utility model has the beneficial technical effects that: the utility model provides a roll sleeve is provided with the wear-resisting nail of crisscross distribution's bar on this roll sleeve, can effectively improve the structural performance of roll sleeve.

Description

Roller sleeve

Technical Field

The utility model relates to a roll extrusion formula crushed aggregates technique especially relates to a roller shell.

Background

The roller is a component in devices such as a roller press, a vertical mill and the like, and the devices are commonly used for crushing and grinding operations in industries such as mine, cement, metallurgy and the like; in order to facilitate processing and maintenance, the roller generally consists of a roller sleeve and a mandrel, wherein the roller sleeve is sleeved outside the mandrel; taking a roller press as an example, a typical roller press is generally provided with two parallel rollers, and materials are crushed under the extrusion action of the rollers after entering a gap between the two rollers; in actual engineering, the pressure to be borne by the roller sleeve can reach as high as 300MPa, the roller sleeve can also generate severe friction with materials in the operation process, and in addition, the roller sleeve can also be impacted by the materials in the feeding process, so that the roller sleeve is extremely easy to damage and wear; in order to improve the structural performance of the roller sleeve, in the prior art, a stud is generally arranged on the surface of the roller sleeve to protect the roller sleeve; there are problems in that: the terminal surface size of stud is less, skids easily when contacting with the material, influences the operating efficiency, because the stud diameter is less moreover, and the stud breaks because of the material strikes easily, and the structure destruction also takes place easily at the connection position of stud and roller shell, leads to equipment needs frequent maintenance, and the maintenance cost is higher, and is great to production influence.

SUMMERY OF THE UTILITY MODEL

To the problem in the background art, the utility model provides a roller shell, roller shell surface are provided with a plurality of wear-resisting nails, and its improvement lies in: the outer end face of the wear-resistant nail is of a straight strip structure, and the axial direction of the wear-resistant nail is parallel to the axial direction of the roller sleeve; the wear-resistant nails form a plurality of protection rings, and each protection ring corresponds to a plurality of wear-resistant nails; wear-resistant nails corresponding to the single protection ring are distributed at equal intervals along the circumferential direction of the roller sleeve; the plurality of protection rings are distributed at zero intervals along the axial direction of the roller sleeve; the wear-resistant nails of the adjacent protection rings are arranged in a staggered manner.

The technical advantages of the foregoing solution are mainly reflected in the following aspects: 1) the outer end face of the wear-resistant nail is of a straight strip structure, so that the wear-resistant nail is large in size in the axial direction of the roller sleeve, when the wear-resistant nail is in contact with materials, the sliding of the materials in the circumferential direction of the roller can be effectively reduced, and the material crushing efficiency can be improved; 2) due to the fact that the wear-resistant nails of the adjacent protection rings are arranged in a staggered mode, materials cannot easily slide in the axial direction of the roller, and material crushing efficiency can be further improved; 3) due to the reduction of sliding, the wear-resisting nail can effectively delay the wear progress of the wear-resisting nail, prolong the service life of the wear-resisting nail, prolong the maintenance period and reduce the maintenance cost; 4) because the size of the wear-resistant nail is large, when the wear-resistant nail is impacted by materials, the wear-resistant nail is not easy to damage, and the connecting part of the wear-resistant nail and the roller sleeve is not easy to damage, so that the impact resistance of the roller sleeve is improved; 5) the wear-resistant nails are relatively independent and can be replaced independently, so that the maintenance is convenient; 6) under the condition that the sizes of the outer peripheral surfaces of the roller sleeves are the same, the outer peripheral surfaces of the roller sleeves can be covered by a small number of wear-resistant nails (compared with studs), the processing complexity of the roller sleeves can be effectively reduced, and the production cost can be saved.

Preferably, the surface of the roller sleeve is provided with a plurality of grooves, the inner ends of the wear-resistant nails are embedded in the grooves, and the wear-resistant nails correspond to the grooves one to one; the inner end of the wear-resistant nail is embedded in the groove in an interference assembly mode or an adhesive mode.

Preferably, the wear-resistant nail is made of hard alloy materials.

Preferably, the axial length of the wear-resistant nail is 40-300mm, the width of the wear-resistant nail is 10-30mm, and the size of the exposed part of the wear-resistant nail in the radial direction of the roller sleeve is 1-20 mm.

Preferably, the distance between adjacent wear resistant nails belonging to the same protection ring is 20-80 mm.

Preferably, the outer end face edge of the wear-resistant nail is provided with a chamfer or a circular arc. After the chamfer or the arc is arranged, the possibility of breakage of the wear-resistant nail can be effectively reduced.

The utility model has the beneficial technical effects that: the utility model provides a roll sleeve is provided with the wear-resisting nail of crisscross distribution's bar on this roll sleeve, can effectively improve the structural performance of roll sleeve.

Drawings

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

the names corresponding to each mark in the figure are respectively: roller shell 1, wear-resisting nail 2, dabber 3.

Detailed Description

The utility model provides a roller shell, roller shell surface is provided with a plurality of wear-resisting nails 2, and its improvement lies in: the outer end face of the wear-resistant nail 2 is of a straight strip structure, and the axial direction of the wear-resistant nail 2 is parallel to the axial direction of the roller sleeve 1; the plurality of wear-resistant nails 2 form a plurality of protection rings, and each protection ring corresponds to the plurality of wear-resistant nails 2; the wear-resistant nails 2 corresponding to the single protection ring are distributed at equal intervals along the circumferential direction of the roller sleeve; the plurality of protection rings are distributed along the axial direction of the roller sleeve 1 at zero intervals; the wear resistant nails 2 of the adjacent protection rings are arranged in a staggered way.

Furthermore, a plurality of grooves are formed in the surface of the roller sleeve 1, the inner ends of the wear-resistant nails 2 are embedded in the grooves, and the wear-resistant nails 2 correspond to the grooves one to one; the inner end of the wear-resistant nail 2 is embedded in the groove in an interference assembly mode or an adhesive mode.

Further, the wear-resistant nail 2 is made of hard alloy materials.

Further, the axial length of the wear-resistant nail 2 is 40-300mm, the width of the wear-resistant nail 2 is 10-30mm, and the size of the exposed part of the wear-resistant nail 2 in the radial direction of the roller sleeve 1 is 1-20 mm.

Further, the distance between the adjacent wear resistant nails 2 belonging to the same protection ring is 20-80 mm.

Further, the edge of the outer end face of the wear-resistant nail 2 is provided with a chamfer or a circular arc.

Claims

1. The utility model provides a roller shell, roller shell surface is provided with a plurality of wear-resisting nails (2), its characterized in that: the outer end face of the wear-resistant nail (2) is of a straight strip structure, and the axial direction of the wear-resistant nail (2) is parallel to the axial direction of the roller sleeve (1); a plurality of wear-resistant nails (2) form a plurality of protection rings, and each protection ring corresponds to a plurality of wear-resistant nails (2); the wear-resistant nails (2) corresponding to the single protection ring are distributed at equal intervals along the circumferential direction of the roller sleeve; the plurality of protection rings are distributed along the axial direction of the roller sleeve (1) at zero intervals; the wear-resistant nails (2) of the adjacent protection rings are arranged in a staggered manner.

2. A roll shell according to claim 1, characterized in that: the surface of the roller sleeve (1) is provided with a plurality of grooves, the inner ends of the wear-resistant nails (2) are embedded in the grooves, and the wear-resistant nails (2) correspond to the grooves one to one; the inner end of the wear-resistant nail (2) is embedded in the groove in an interference assembly mode or an adhesive mode.

3. A roll shell according to claim 1, characterized in that: the wear-resistant nail (2) is made of hard alloy materials.

4. A roll shell according to claim 1, 2 or 3, characterized in that: the axial length of the wear-resistant nail (2) is 40-300mm, the width of the wear-resistant nail (2) is 10-30mm, and the size of the exposed part of the wear-resistant nail (2) in the radial direction of the roller sleeve (1) is 1-20 mm.

5. A roll shell according to claim 4, characterised in that: the distance between the adjacent wear-resistant nails (2) belonging to the same protection ring is 20-80 mm.

6. A roll shell according to claim 4, characterised in that: the edge of the outer end face of the wear-resistant nail (2) is provided with a chamfer or an arc.