CN211099297U - Cast nail roller sleeve - Google Patents
Cast nail roller sleeve Download PDFInfo
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- CN211099297U CN211099297U CN201921641975.7U CN201921641975U CN211099297U CN 211099297 U CN211099297 U CN 211099297U CN 201921641975 U CN201921641975 U CN 201921641975U CN 211099297 U CN211099297 U CN 211099297U
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- cast
- sleeve body
- nails
- roller sleeve
- roller
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Abstract
The utility model belongs to the roller sleeve field of a roller press, in particular to a cast nail roller sleeve, which comprises a cylindrical roller sleeve body and a plurality of cast nails which are fixedly connected with the shaft sleeve body and are embedded on the roller sleeve body; the shaft sleeve body comprises a middle section and a residual edge section, wherein the middle section is arranged in the middle of the shaft sleeve body; the distance between two axially adjacent cast nails at the middle section is 1.4-1.6 times of the outer diameter of the cast nails; the distance between two axially adjacent cast nails of the edge section is 1.8 to 2.1 times of the outer diameter of the cast nail; two circumferentially adjacent cast nails of the shaft sleeve body are arranged at equal intervals. The staggered arrangement scheme designed by the cast nails can keep the abrasion speed of the middle part and the end part consistent, improve the utilization rate of the roller sleeve and reduce the production cost.
Description
Technical Field
The utility model belongs to the roller shell field of roll squeezer, concretely relates to cast nail roller shell.
Background
The roller sleeve of the high-pressure roller mill is a core component of the main machine equipment, and materials are changed into cakes filled with cracks under the action of high-pressure grinding of the materials and enter a powder concentrator system for separation. The roller sleeve can generate serious abrasion under the action of long-term extrusion, and the service life of the roller sleeve also influences the operation rate and the maintenance cost of equipment, so that the improvement of the wear-resisting service life of the roller surface is always the target of industrial personnel. The roller sleeve of the traditional high-pressure roller mill has a plurality of modes such as a surfacing roller sleeve, a composite casting roller sleeve, a cast nail roller sleeve and the like. The integral overlaying welding type and embedded overlaying welding type roll shafts belong to the early technology, are frequently applied in the cement industry all the time, and have the service life of 6000-8000 h; the composite casting type roller sleeve belongs to a middle-term technology, has certain application in the cement industry, and has the service life of 12000-16000 h; the hard alloy cast nail type roller sleeve is greatly developed in the field of ore grinding in the early stage, and the service life of the hard alloy cast nail type roller sleeve can reach more than 8000 h. In the cement industry, the cement is difficult to popularize and use due to overhigh manufacturing cost in the early stage, and in recent years, the cement is accepted by more users, so that the cement has a tendency of popularization and application gradually, and the service life of the cement can reach more than 20000 h. From the life perspective, carbide cast nail formula roll surface result of use is the best, but from the maintenance perspective, needs intensive punching and uses glue to bond on its roll surface, and the roll surface wearing and tearing need to change the cast nail to a certain extent, and the process cycle of dismantling and bonding cast nail is big in the degree of difficulty.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cast nail roller shell.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a cast nail roller sleeve comprises a cylindrical roller sleeve body and a plurality of cast nails which are fixedly connected with the roller sleeve body and are cast on the roller sleeve body in an embedding manner; the shaft sleeve body comprises a middle section and a residual edge section, wherein the middle section is arranged in the middle of the shaft sleeve body; the distance between two axially adjacent cast nails at the middle section is 1.4-1.6 times of the outer diameter of the cast nails; the distance between two axially adjacent cast nails of the edge section is 1.8 to 2.1 times of the outer diameter of the cast nail; two circumferentially adjacent cast nails of the shaft sleeve body are arranged at equal intervals.
The shaft sleeve body is divided into 4 sections along the axial direction, the middle section is 2 sections in the middle, and the edge section is the rest 2 sections.
The distance between two circumferentially adjacent cast nails of the shaft sleeve body is 1.8-2.1 times of the outer diameter of the cast nails.
Compared with the prior art, the beneficial effects of the utility model are that:
the cast nails adopt a specially designed staggered arrangement scheme, so that the abrasion speed of the middle part and the end part can be kept consistent, the utilization rate of the roller sleeve is improved, and the production cost is reduced.
Drawings
FIG. 1 is a schematic representation of a working surface of a cast nail sleeve;
FIG. 2 is a cross-sectional view of a sprue pin roller sleeve.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
Fig. 1-2 show a cast nail roller sleeve, which comprises a cylindrical roller sleeve body 1 and a plurality of cast nails 2 fixedly connected with the roller sleeve body and cast on the roller sleeve body in an embedding way; the shaft sleeve body comprises a middle section 11 arranged in the middle and a residual edge section 12; the distance between two axially adjacent cast nails at the middle section is 1.4-1.6 times of the outer diameter of the cast nails; the distance between two axially adjacent cast nails of the edge section is 1.8 to 2.1 times of the outer diameter of the cast nail; two circumferentially adjacent cast nails of the shaft sleeve body are arranged at equal intervals.
The shaft sleeve body is divided into 4 sections along the axial direction, the middle section is 2 sections in the middle, and the edge section is the rest 2 sections. The distance between two circumferentially adjacent cast nails of the shaft sleeve body is 1.8-2.1 times of the outer diameter of the cast nails.
By adopting the staggered arrangement scheme of the cast nail design, the abrasion speed of the middle part and the end part can be kept consistent, the utilization rate of the roller sleeve is improved, and the production cost is reduced.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (3)
1. The cast nail roller sleeve is characterized by comprising a cylindrical roller sleeve body and a plurality of cast nails which are fixedly connected with the roller sleeve body and are cast on the roller sleeve body in an embedding manner; the shaft sleeve body comprises a middle section and a residual edge section, wherein the middle section is arranged in the middle of the shaft sleeve body; the distance between two axially adjacent cast nails at the middle section is 1.4-1.6 times of the outer diameter of the cast nails; the distance between two axially adjacent cast nails of the edge section is 1.8 to 2.1 times of the outer diameter of the cast nail; two circumferentially adjacent cast nails of the shaft sleeve body are arranged at equal intervals.
2. The cast nail roller sleeve as claimed in claim 1, wherein the sleeve body is divided into 4 sections in an axial direction, the middle section is 2 sections in the middle, and the edge section is the remaining 2 sections.
3. The cast nail roller sleeve as claimed in claim 1, wherein the distance between two circumferentially adjacent cast nails of the sleeve body is 1.8-2.1 times of the outer diameter of the cast nails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921641975.7U CN211099297U (en) | 2019-09-29 | 2019-09-29 | Cast nail roller sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921641975.7U CN211099297U (en) | 2019-09-29 | 2019-09-29 | Cast nail roller sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211099297U true CN211099297U (en) | 2020-07-28 |
Family
ID=71686969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921641975.7U Active CN211099297U (en) | 2019-09-29 | 2019-09-29 | Cast nail roller sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211099297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114588968A (en) * | 2022-03-24 | 2022-06-07 | 武汉华材表面科技有限公司 | Roller press roller sleeve with uniformly-worn cast-in hard alloy stud |
-
2019
- 2019-09-29 CN CN201921641975.7U patent/CN211099297U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114588968A (en) * | 2022-03-24 | 2022-06-07 | 武汉华材表面科技有限公司 | Roller press roller sleeve with uniformly-worn cast-in hard alloy stud |
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