Connecting structure of roller and roller shaft
By using a movable pin and a return spring in the connection structure between the roll and the roll shaft, the problem of loose threaded rods was solved, the roll shaft was stably installed, and the performance and practicality were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU YIHAO ROLLER CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing connection structure between the roll and the roll shaft, the threaded rod may loosen, resulting in an unstable fixation and affecting the performance.
The design employs a movable pin and a return spring. The pin is inserted into the mounting hole and cavity of the roll body, combined with a threaded connection, which improves the installation firmness of the roll shaft and prevents loosening.
It enhances the connection stability between the roll and the roll shaft, improves the performance and practicality, and prevents loosening.
Smart Images
Figure CN224222329U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rolling mill technology, specifically a connection structure between a rolling mill and a rolling mill shaft. 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 connection structure between a roll and a roll shaft is proposed in a Chinese patent publication number CN222369948U. After studying the existing technology and the aforementioned patent, it was found that in the existing installation of rolls and roll shafts, threaded rods are mostly used for fixing. However, when the rolls and roll shafts are used to roll metal plates, the threaded rods may become loose, which will lead to the rolls and roll shafts not being fixed tightly, thus affecting the performance of the rolls.
[0004] Therefore, a connection structure between the roll and the roll shaft is proposed here. Summary of the Invention
[0005] Technical problems to be solved
[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a connection structure between a roll and a roll shaft.
[0007] Technical solution:
[0008] To achieve the above objectives, this utility model provides the following technical solution: a connection structure between a roll and a roll shaft, comprising a roll body and a roll shaft. Mounting holes are provided on both sides of the roll body, and a movable pin is provided inside each mounting hole. An insertion hole adapted to the pin is provided on the roll shaft. A cavity for mounting the pin is also provided inside the roll body. The pin is inserted into the cavity, and a return spring is sleeved on the pin. One end of the roll shaft is installed in the mounting hole of the roll body. The movable pin can limit the position of the roll shaft installed in the mounting hole, effectively improving the installation firmness of the roll shaft and preventing loosening between the roll body and the roll shaft, which would affect its performance. This effectively improves the performance of the device and enhances its practicality.
[0009] Preferably, the mounting hole is a threaded hole, and one end of the roll shaft is threaded into the interior of the mounting hole.
[0010] Preferably, one end of the pin is connected to a pull ring.
[0011] Preferably, one end of the cavity is connected to a cover plate, which is fixedly mounted on the roll body by screws.
[0012] Preferably, the cover plate has a second mounting hole inside for the pin shaft to pass through.
[0013] Preferably, the bottom of the insertion hole is threaded, and the pin is threaded a second time, and the pin is threadedly connected to the insertion hole.
[0014] Preferably, one end of the roll shaft is tapered, and the tapered end is inserted into the mounting hole.
[0015] Beneficial effects:
[0016] Compared with the prior art, the connection structure between the roll and the roll shaft has the following advantages.
[0017] The present invention has one end of the roll shaft installed in the mounting hole of the roll body. The position of the roll shaft installed in the mounting hole can be limited by the movable pin, which effectively improves the installation firmness of the roll shaft and avoids the phenomenon of loosening between the roll body and the roll shaft, which would affect its performance. This effectively improves the performance of the device and enhances its practicality. Attached Figure Description
[0018] 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.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0021] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0022] Figure 4 This is a schematic diagram of the structure of the roller shaft of this utility model.
[0023] Figure 5 This is a cross-sectional structural diagram of the present invention.
[0024] In the picture:
[0025] 1. Roll body; 2. Roll shaft; 3. Mounting hole; 4. Pin; 5. Insertion hole; 6. Cavity; 7. Return spring; 8. Cover plate; 9. Screw; 401. Pull ring; 402. Thread two; 801. Mounting hole two; 501. Thread. Detailed Implementation
[0026] 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.
[0027] Please see Figures 1-5 As shown, this utility model provides a technical solution: a connection structure between a roll and a roll shaft, including a roll body 1 and a roll shaft 2. Mounting holes 3 are provided on both sides of the roll body 1. One end of the roll shaft 2 is tapered, and the tapered end is inserted into the interior of the mounting hole 3. The tapered end design allows the roll shaft 2 to be smoothly inserted into the mounting hole 3, making it convenient and quick to use. A movable pin 4 is provided inside the mounting hole 3. The roll shaft 2 has an insertion hole 5 that matches the pin 4. The interior of the device 1 also has a cavity 6 for installing the pin 4. The pin 4 is inserted into the cavity 6 and a return spring 7 is sleeved on the pin 4. One end of the roll shaft 2 is installed in the mounting hole 3 of the roll body 1. The position of the roll shaft 2 installed in the mounting hole 3 can be limited by the movable pin 4, which effectively improves the installation firmness of the roll shaft 2 and avoids the phenomenon of loosening between the roll body 1 and the roll shaft 2, which would affect its performance. This effectively improves the performance of the device and enhances its practicality.
[0028] Please refer to the following carefully. Figure 2 , Figure 3 and Figure 5 Mounting hole 3 is a threaded hole, and one end of the roll shaft 2 is threaded into the inside of mounting hole 3. The threaded hole makes the installation of the roll shaft 2 more stable.
[0029] Please refer to the following carefully. Figure 3 One end of the pin 4 is connected to a pull ring 401. The pull ring 401 allows the pin 4 to be disengaged from the insertion hole 5 by the operator, thereby allowing the roll body 1 and the roll shaft 2 to be separated.
[0030] Please refer to the following carefully. Figure 1 and Figure 3One end of the cavity 6 is connected to a cover plate 8, which is fixedly installed on the roll body 1 by screws 9. The cover plate 8 has an installation hole 801 for the pin 4 to pass through. The cover plate 8 is designed to be detachable, so that the pin 4 can be easily removed when needed.
[0031] The bottom of the insertion hole 5 in this application is provided with a thread 501, and the pin 4 is provided with a thread 402. The pin 4 is threadedly connected to the insertion hole 5. This design makes the pin 4 more secure and thus improves the structural stability of the device.
[0032] Working principle: One end of the roll shaft 2 is installed in the mounting hole 3 of the roll body 1. The position of the roll shaft 2 installed in the mounting hole 3 can be limited by the movable pin 4, which effectively improves the installation firmness of the roll shaft 2 and avoids the phenomenon of loosening between the roll body 1 and the roll shaft 2, which would affect its performance.
[0033] 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.
[0034] 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 connection structure between a rolling mill roll and a rolling mill shaft, comprising a rolling mill roll body (1) and a rolling mill shaft (2), characterized in that: The roll body (1) is provided with mounting holes (3) on both sides. A movable pin (4) is provided inside the mounting hole (3). The roll shaft (2) is provided with an insertion hole (5) that is compatible with the pin (4). The roll body (1) is also provided with a cavity (6) for mounting the pin (4). The pin (4) is inserted into the cavity (6), and a return spring (7) is sleeved on the pin (4).
2. The connection structure between a rolling mill roll and a rolling mill shaft according to claim 1, characterized in that: The mounting hole (3) is a threaded hole, and one end of the roll shaft (2) is threaded into the interior of the mounting hole (3).
3. The connection structure between a rolling mill roll and a rolling mill shaft according to claim 1, characterized in that: One end of the pin (4) is connected to a pull ring (401).
4. The connection structure between a rolling mill roll and a rolling mill shaft according to claim 1, characterized in that: One end of the cavity (6) is connected to a cover plate (8), which is fixedly installed on the roll body (1) by screws (9).
5. The connection structure between a rolling mill roll and a rolling mill shaft according to claim 4, characterized in that: The cover plate (8) has an installation hole (801) inside for the pin (4) to pass through.
6. The connection structure between a rolling mill roll and a rolling mill shaft according to claim 1, characterized in that: The bottom of the insertion hole (5) is provided with a thread (501), and the pin (4) is provided with a thread (402). The pin (4) is threadedly connected to the insertion hole (5).
7. The connection structure between a rolling mill roll and a rolling mill shaft according to claim 1, characterized in that: One end of the roller shaft (2) is tapered, and the tapered end is inserted into the mounting hole (3).