Replaceable roller
By setting mounting grooves, limiting buckles, and limiting pins on the roll body, the roll outer sleeve can be detached and replaced, solving the problem of high replacement cost of existing rolls and reducing the cost of use and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU YIHAO ROLLER CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-05-12
AI Technical Summary
Existing rolls require replacement of the entire roll after hard wear on the outer surface, resulting in high usage and maintenance costs.
A replaceable roll was designed. By setting an installation groove, a limiting ring, and a limiting pin on the roll body, the roll outer sleeve can be disassembled and replaced. The position of the roll outer sleeve is limited by the threaded connection and the limiting pin, so that it is securely installed.
The roll outer sleeve can be detached and replaced, reducing usage and maintenance costs.
Smart Images
Figure CN224222330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rolling mill technology, specifically a replaceable rolling mill roll. Background Technology
[0002] Rolls are tools that cause plastic deformation of metal. They are important consumable components that determine the efficiency of rolling mills and the quality of rolled materials. Rolls are important parts on rolling mills in steel mills. They use the pressure generated by the rolling of a pair or a group of rolls to roll steel. They mainly bear the dynamic and static loads during rolling, as well as the effects of wear and temperature changes.
[0003] A replaceable rolling mill roll is proposed in Chinese Patent Publication No. CN 213256273 U. Research on existing technology and the aforementioned patent reveals that existing rolling mill rolls require replacement of the entire roll after hard wear and damage to the outer surface, resulting in high usage and maintenance costs. Therefore, this utility model proposes a replaceable rolling mill roll. Summary of the Invention
[0004] Technical problems to be solved
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a replaceable roll.
[0006] Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a replaceable roll, comprising a roll body, an outer roll sleeve, an inner mounting groove, a connecting thread inside the mounting groove, a limit ring threadedly connected inside the mounting groove, a pin hole communicating with the mounting groove on one side, a limit pin inserted into the pin hole, a spring connected to one side of the limit pin, the end of the spring away from the limit pin fixed in the pin hole, and an annular limit groove inside the outer roll sleeve. One end of the limiting pin can be fitted into the inside of the annular limiting groove. By setting a pin hole and a limiting pin, and setting a threaded mounting groove and a limiting buckle, during installation, the roll outer sleeve is first fitted onto the roll body, and then the limiting buckle is rotated to limit the position of the roll outer sleeve on the roll body through the limiting pin, so that the roll outer sleeve is firmly installed on the roll body. The above structure makes the roll outer sleeve detachable and replaceable. After long-term use and wear, the roll outer sleeve can be easily replaced. This design of replacing only the roll outer sleeve can save on usage costs and shorten maintenance costs.
[0008] Preferably, a buckle plate is fixedly connected to one side of the limiting buckle, and the limiting buckle is provided with a connecting thread II inside.
[0009] Preferably, one end of the limiting buckle is provided with a beveled edge.
[0010] Preferably, one end of the limiting pin is provided with a beveled edge.
[0011] Preferably, a roller shaft is fixedly connected to the center of both ends of the roller body.
[0012] Preferably, there are multiple pin holes, and correspondingly, there are also multiple limiting pins.
[0013] Preferably, the roll is composed of an inner shell, an outer shell, and a corrugated reinforcing layer located between the inner shell and the outer shell.
[0014] Beneficial effects:
[0015] Compared with existing technologies, this replaceable roll has the following advantages:
[0016] This invention, by setting pin holes and limiting pins, and setting threaded mounting grooves and limiting buckles, allows the roll outer sleeve to be fitted onto the roll body first during installation. Then, by rotating the limiting buckle, the position of the roll outer sleeve on the roll body can be limited by the limiting pin, ensuring that the roll outer sleeve is firmly installed on the roll body. The above structure allows the roll outer sleeve to be disassembled and replaced, making it easy to replace after the surface of the roll outer sleeve wears down over a long period of use. This design, which only requires replacing the roll outer sleeve, can save on usage costs and shorten maintenance costs. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0021] Figure 4 This is a partial structural schematic diagram of the present invention;
[0022] Figure 5 This is a cross-sectional view of the outer sleeve of the roll of this utility model.
[0023] In the picture:
[0024] 1. Roll body; 2. Roll outer sleeve; 3. Mounting groove; 4. Connecting thread; 5. Limiting ring; 6. Pin hole; 7. Limiting pin shaft; 8. Spring; 9. Buckle plate; 10. Roll shaft; 204. Annular limiting groove; 501. Connecting thread two; 502. Beveled edge; 701. Beveled edge two; 201. Inner shell; 202. Outer shell; 203. Corrugated reinforcing layer. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-5 As shown, this utility model provides a technical solution: a replaceable roll, including a roll body 1, a roll outer sleeve 2, an installation groove 3 inside the roll body 1, a connecting thread 4 inside the installation groove 3, a limit ring 5 threadedly connected inside the installation groove 3, a pin hole 6 communicating with the installation groove 3, a limit pin 7 inserted into the pin hole 6, a beveled edge 701 at one end of the limit pin 7, a spring 8 connected to one side of the limit pin 7, and the end of the spring 8 away from the limit pin 7 fixed in the pin hole 6. There are multiple pin holes 6, and correspondingly multiple limiting pins 7. By setting pin holes 6 and limiting pins 7, and setting threaded mounting grooves 3 and limiting buckles 5, during installation, the roll outer sleeve 2 is first fitted onto the roll body 1, and then the position of the roll outer sleeve 2 on the roll body 1 is limited by the limiting pins 7 through the rotating limiting buckle 5, so that the roll outer sleeve 2 is firmly installed on the roll body 1. The above structure makes the roll outer sleeve 2 detachable and replaceable. After long-term use and wear, the roll outer sleeve 2 can be easily replaced. This design of only replacing the roll outer sleeve 2 can save on usage costs and shorten maintenance costs.
[0027] The roll outer sleeve 2 of this application has an annular limiting groove 204 inside, and one end of the limiting pin 7 can be adapted to be inserted into the annular limiting groove 204. The roll outer sleeve 2 is composed of an inner shell 201, an outer shell 202, and a corrugated reinforcing layer 203 located between the inner shell 201 and the outer shell 202.
[0028] Please refer to the following carefully. Figure 1 and Figure 2 A buckle plate 9 is fixedly connected to one side of the limiting buckle 5. The limiting buckle 5 has a connecting thread 501 inside. One end of the limiting buckle 5 has a beveled edge 502. A roll shaft 10 is also fixedly connected to the center of both ends of the roll body 1.
[0029] Working principle: When assembling and installing this device, firstly, the outer sleeve 2 of the roll is fitted onto the roll body 1. Then, by rotating the limiting buckle 5, the position of the outer sleeve 2 on the roll body 1 can be limited by the limiting pin 7, so that the outer sleeve 2 of the roll is firmly installed on the roll body 1. The above structure makes the outer sleeve 2 removable and replaceable.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A replaceable roll, comprising a roll body (1), characterized in that: The roll body (1) is provided with a roll outer sleeve (2) on the outside. The roll body (1) is provided with an installation groove (3) inside. The installation groove (3) is provided with a connecting thread (4) inside. The installation groove (3) is also threaded with a limit ring (5). A pin hole (6) is provided on one side of the installation groove (3) and communicates with it. A limit pin (7) is inserted into the part of the pin hole (6). A spring (8) is connected to one side of the limit pin (7). The end of the spring (8) away from the limit pin (7) is fixed in the pin hole (6). The inner side of the roll jacket (2) is provided with an annular limiting groove (204), and one end of the limiting pin (7) can be adapted to be inserted into the inner side of the annular limiting groove (204).
2. A replaceable roll according to claim 1, characterized in that: A buckle plate (9) is fixedly connected to one side of the limiting buckle (5), and a connecting thread (501) is provided inside the limiting buckle (5).
3. A replaceable roll according to claim 1, characterized in that: One end of the limiting buckle (5) is provided with a beveled edge (502).
4. A replaceable roll according to claim 1, characterized in that: One end of the limiting pin (7) is provided with a beveled edge (701).
5. A replaceable roll according to claim 1, characterized in that: Roller shafts (10) are also fixedly connected at the center of both ends of the roll body (1).
6. A replaceable roll according to claim 1, characterized in that: There are multiple pin holes (6), and there are also multiple corresponding limiting pins (7).
7. A replaceable roll according to claim 1, characterized in that: The roll jacket (2) consists of an inner shell (201), an outer shell (202), and a corrugated reinforcing layer (203) located between the inner shell (201) and the outer shell (202).