CN211487892U - Composite roll shaft structure of rolling machine - Google Patents
Composite roll shaft structure of rolling machine Download PDFInfo
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- CN211487892U CN211487892U CN201921930714.7U CN201921930714U CN211487892U CN 211487892 U CN211487892 U CN 211487892U CN 201921930714 U CN201921930714 U CN 201921930714U CN 211487892 U CN211487892 U CN 211487892U
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- roll shaft
- roller
- shaft
- shaft sleeve
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Abstract
A composite roll shaft structure of a roll squeezer comprises a roll shaft and a roll shaft sleeve; the working outer circular surface of the roll shaft is provided with a plurality of short annular roll shaft sleeves, when a wear-resistant layer on the surface of each roll shaft sleeve peels off or is damaged by abrasion in the working process of the roll squeezer, and finally the roll shaft sleeves lose efficacy, only the roll shaft sleeves which lose efficacy need to be replaced, and other roll shaft sleeves can be continuously used, so that the cost for replacing the roll shaft sleeves is greatly reduced; in addition, the roller teeth with the isosceles trapezoid-shaped sections are arranged on the outer circumference of the roller shaft sleeve, so that the working area of the roller shaft sleeve is increased, the pressure intensity of the working surface of the roller shaft sleeve is reduced, the service life of the roller shaft sleeve is greatly prolonged, and the use cost of the roller shaft sleeve is correspondingly further reduced.
Description
Technical Field
The utility model relates to a roll squeezer roller technical field, concretely relates to compound roller structure of roll squeezer.
Background
The roller press is a machine which applies pressure to materials by utilizing two roller shafts to ensure that the rolled materials are crushed and decomposed; in the working process of the roller press, the surface of the roller shaft bears the pressure of 50-300MPa, so that the surface of the roller shaft is easy to generate peeling or abrasion damage of an abrasion-resistant layer, and finally the roller shaft is out of service and needs to be integrally replaced by a new roller shaft; however, the cost is extremely high when the roll shaft is integrally replaced, and in order to solve the problem, the existing roll shaft design generally adopts a bushing type roll shaft structure, namely a roll shaft sleeve is fixedly arranged on the working surface of the roll shaft, and when the roll shaft sleeve is stripped or damaged by abrasion, only the roll shaft sleeve needs to be replaced, so that the cost is greatly reduced compared with the cost for integrally replacing the roll shaft; however, in this structure, when the roller sleeve has a local wear-resistant layer peeling off or is worn and damaged, the whole roller sleeve needs to be replaced, and the cost is still high, so it is necessary to further reduce the cost for replacing the roller sleeve through the structural design.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the background art, the utility model discloses a composite roll shaft structure of a roll squeezer, which comprises a roll shaft and a roll shaft sleeve; the working outer circular surface of the roll shaft is provided with a plurality of short annular roll shaft sleeves, when a wear-resistant layer on the surface of each roll shaft sleeve peels off or is damaged by abrasion in the working process of the roll squeezer, and finally the roll shaft sleeves lose efficacy, only the roll shaft sleeves which lose efficacy need to be replaced, and other roll shaft sleeves can be continuously used, so that the cost for replacing the roll shaft sleeves is greatly reduced; in addition, the outer circular surface of the roller shaft sleeve is provided with the roller pressing teeth with the isosceles trapezoid cross sections, the roller pressing teeth increase the working area of the roller shaft sleeve and reduce the pressure of the working surface of the roller shaft sleeve, so that the service life of the roller shaft sleeve is greatly prolonged, and the use cost of the roller shaft sleeve is correspondingly further reduced.
In order to realize the utility model aims at, the utility model adopts the following technical scheme: a composite roll shaft structure of a roll squeezer comprises a roll shaft and a roll shaft sleeve; the roll shaft is a stepped shaft, and the roll shaft sleeve is in a short ring shape; the roller shaft sleeve is fixedly arranged on the outer circular surface in the middle of the roller shaft.
Further, a thrust shaft shoulder is arranged at the shaft end of the roll shaft close to the left side; the roller shaft sleeves are arranged in a plurality, wherein the roller shaft sleeve on the leftmost side is in contact with a thrust shaft shoulder which is used for axially positioning the roller shaft sleeves when the roller shaft is installed; a plurality of roller shell can be dismantled alone and change, when one or several roller shell appear damaging, only need to change the roller shell of damage, other roller shell can continue to use, have consequently reduced the cost of changing the roller shell.
Furthermore, the composite roll shaft structure of the roll squeezer also comprises a roll shaft sleeve compression ring; the roller shaft sleeve compression ring is in a ring plate shape, is arranged on the step surface of the right shaft end of the roller shaft and is fixedly connected with the roller shaft through a bolt; the roller shaft sleeve compression ring is in contact with the roller shaft sleeve arranged at the rightmost end on the roller shaft, so that the axial limiting of the roller shaft sleeve is realized, and the roller shaft sleeve is prevented from axially moving in the working process.
Further, rolling teeth are arranged on the outer circular surface of the roller shaft sleeve and close to the end surface of one side of the roller shaft sleeve, and the rolling teeth are isosceles trapezoids; the rolling teeth increase the effective working area of the roller shaft sleeve and reduce the working pressure on the surface of the roller shaft sleeve, so the service life of the roller shaft sleeve can be prolonged; in addition, in the actual working process of the roller shaft sleeve, rolled materials slide relative to the inclined planes on the two sides of the rolling teeth, so that the inclined planes on the two sides of the rolling teeth are abraded, the abrasion is used for eliminating fatigue microcracks generated in the working process of the roller shaft sleeve, the surface peeling caused by the further expansion and connection of the fatigue microcracks is prevented, and the service life of the roller shaft sleeve can be greatly prolonged; in addition, the roll pressing tooth structure arranged on the outer surface of the roll shaft sleeve can be used for conveniently detaching the roll shaft sleeve by using a pull code, so that the roll shaft sleeve is more convenient to replace; in addition, the isosceles trapezoid rolling teeth arranged on the roll shaft sleeve enable the pressure on the inclined planes on the two sides of the rolling teeth to be equal during working, axial acting force is prevented from being generated on the roll shaft, and therefore the service life of the bearings arranged at the two ends of the roll shaft is prolonged.
Furthermore, the roll shaft and the roll shaft sleeve are in interference fit.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a composite roll shaft structure of a roll squeezer, which comprises a roll shaft and a roll shaft sleeve; the working outer circular surface of the roll shaft is provided with a plurality of short annular roll shaft sleeves, when a wear-resistant layer on the surface of each roll shaft sleeve peels off or is damaged by abrasion in the working process of the roll squeezer, so that the roll shaft sleeves lose efficacy, only the roll shaft sleeves which lose efficacy need to be replaced, and the rest roll shaft sleeves can be continuously used, so that the cost for replacing the roll shaft sleeves is greatly reduced; in addition, the outer circular surface of the roller shaft sleeve is provided with the roller pressing teeth with the isosceles trapezoid cross sections, the roller pressing teeth increase the working area of the roller shaft sleeve and reduce the pressure of the working surface of the roller shaft sleeve, so that the service life of the roller shaft sleeve is greatly prolonged, and the use cost of the roller shaft sleeve is correspondingly further reduced.
Drawings
FIG. 1 is a schematic view of the appearance of a composite roll shaft of a roll press;
FIG. 2 is a partial cross-sectional view of a composite roll shaft of a roll press;
FIG. 3 is a schematic view of the exterior of the roller shaft;
FIG. 4 is a schematic view of the outer appearance of the roller shell;
fig. 5 is an appearance schematic diagram of a roller sleeve compression ring.
In the figure: 1. a roll shaft; 1.1, thrust shaft shoulders; 2. A roller sleeve; 2.1, rolling teeth; 3. roller shell clamp ring.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
A composite roll shaft structure of a roll squeezer comprises a roll shaft 1, a roll shaft sleeve 2 and a roll shaft sleeve compression ring 3; the roll shaft 1 is a stepped shaft, and a thrust shaft shoulder 1.1 is arranged at the end close to the left side shaft; the roller shaft sleeve 2 is in a short ring shape and is fixedly arranged on the outer circular surface of the middle part of the roller shaft 1, and the roller shaft 1 and the roller shaft sleeve 2 are in interference fit; the roller shaft sleeves 2 are arranged in a plurality, wherein the roller shaft sleeve 2 at the leftmost side is in contact with the thrust shaft shoulder 1.1; the roller shaft sleeve pressing ring 3 is in a ring plate shape, is arranged on the step surface of the roller shaft 1 close to the right shaft end, and is fixedly connected with the roller shaft 1 through a bolt; the roller shaft sleeve pressing ring 3 is arranged in contact with the roller shaft sleeve 2 arranged at the rightmost end of the roller shaft 1, and the roller shaft sleeve pressing ring 3 is pre-pressed on the roller shaft sleeve 2; and rolling teeth 2.1 are arranged on the outer circular surface of the roller shaft sleeve 2 and close to one side end surface, and the rolling teeth 2.1 are isosceles trapezoids.
When the composite roll shaft is used, the surface of the roll shaft sleeve 2 generates abrasion-resistant layer peeling or abrasion damage, so that the roll shaft sleeve fails, the roll shaft sleeve compression ring 3 is dismounted, and then the roll shaft sleeve 2 is sequentially dismounted from right to left by using a pull code until the damaged roll shaft sleeve 2 is dismounted; replacing and installing a new roller shaft sleeve 2, installing a roller shaft sleeve compression ring 3, and locking a bolt for connecting the roller shaft sleeve compression ring 3 with the roller shaft 1; when a new roll sleeve 2 is replaced, the roll sleeve 2 to be replaced is basically disposed at the middle position, and the roll sleeves 2 to be mounted again after being detached are disposed at both sides.
The part of the utility model not detailed is prior art.
Claims (5)
1. The utility model provides a compound roller structure of roll squeezer which characterized by: comprises a roll shaft (1) and a roll shaft sleeve (2); the roll shaft (1) is a stepped shaft, and the roll shaft sleeve (2) is in a short ring shape; the roll shaft sleeve (2) is fixedly arranged on the outer circular surface of the middle part of the roll shaft (1).
2. The composite roll shaft structure of a roll press according to claim 1, wherein: the roll shaft (1) is a stepped shaft, and a thrust shaft shoulder (1.1) is arranged at the end close to the left side shaft; the roller shaft sleeves (2) are arranged in a plurality, wherein the roller shaft sleeve (2) on the leftmost side is in contact with the thrust shaft shoulder (1.1).
3. The composite roll shaft structure of a roll press according to claim 1, wherein: the roller shaft sleeve pressing ring (3) is further included; the roller shaft sleeve pressing ring (3) is in a ring plate shape, is arranged on the step surface of the roller shaft (1) close to the right shaft end, and is fixedly connected with the roller shaft (1) through a bolt; the roller shaft sleeve pressing ring (3) is in contact with the roller shaft sleeve (2) arranged at the rightmost end of the roller shaft (1).
4. The composite roll shaft structure of a roll press according to claim 1, wherein: and the end surface of the outer circle surface of the roller shaft sleeve (2) close to one side is provided with a rolling tooth (2.1), and the rolling tooth (2.1) is in an isosceles trapezoid shape.
5. The composite roll shaft structure of a roll press according to claim 1, wherein: and the roll shaft (1) and the roll shaft sleeve (2) are in interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921930714.7U CN211487892U (en) | 2019-11-11 | 2019-11-11 | Composite roll shaft structure of rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921930714.7U CN211487892U (en) | 2019-11-11 | 2019-11-11 | Composite roll shaft structure of rolling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211487892U true CN211487892U (en) | 2020-09-15 |
Family
ID=72409081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921930714.7U Active CN211487892U (en) | 2019-11-11 | 2019-11-11 | Composite roll shaft structure of rolling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211487892U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112122874A (en) * | 2020-10-26 | 2020-12-25 | 冯白茹 | Rotating roller, rotating device and rotating system for rotating heavy pipe body |
| CN114192219A (en) * | 2021-11-15 | 2022-03-18 | 福建福清万年青水泥有限公司 | Slag crushing apparatus for cement production |
| CN115254312A (en) * | 2022-06-20 | 2022-11-01 | 华能国际电力股份有限公司营口电厂 | Medium speed pulverizer grinding roller cover with metal ceramic complex |
-
2019
- 2019-11-11 CN CN201921930714.7U patent/CN211487892U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112122874A (en) * | 2020-10-26 | 2020-12-25 | 冯白茹 | Rotating roller, rotating device and rotating system for rotating heavy pipe body |
| CN114192219A (en) * | 2021-11-15 | 2022-03-18 | 福建福清万年青水泥有限公司 | Slag crushing apparatus for cement production |
| CN114192219B (en) * | 2021-11-15 | 2023-01-06 | 福建福清万年青水泥有限公司 | Slag crushing apparatus for cement production |
| CN115254312A (en) * | 2022-06-20 | 2022-11-01 | 华能国际电力股份有限公司营口电厂 | Medium speed pulverizer grinding roller cover with metal ceramic complex |
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