Impact-resistant work roll
By setting roller rings and heat dissipation holes on the work roll, combined with the toughness buffer of the shaft core and the design of the transition arc angle, the wear and breakage problems of traditional work rolls are solved, realizing efficient plate processing and high-quality production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU CHUANGHONG MACHINERY CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional work rolls are prone to wear, cracks and breakage during high-temperature billet rolling, and it is difficult to guarantee high precision and high quality of the sheet in cold rolling process. Existing technologies lack effective wear resistance and fatigue resistance.
Multiple roller rings are set on the shaft core, and heat dissipation holes are opened inside the shaft core. The roller rings are processed by contacting the plate. The toughness of the shaft core is used to buffer the impact force. Combined with the transition arc corner and sound insulation cotton, noise is reduced, thus achieving the stability and impact resistance of the roller rings.
It improves the service life and processing quality of the work rolls, ensures the dimensional stability and surface flatness of the sheet material, reduces noise and wear, and meets high-standard production requirements.
Smart Images
Figure CN224359142U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of work roll technology, and more specifically to an impact-resistant work roll. Background Technology
[0002] In the field of metal rolling, with the expansion of production scale and the increase of rolling speed, the loads on work rolls, such as pressure, impact force and friction, are constantly increasing. For example, in the hot rolling process, the contact between the high-temperature steel billet and the work roll generates a large impact force. Traditional work rolls are prone to wear, cracks or even breakage, affecting production efficiency and product quality. In order to adapt to this high-speed, heavy-load rolling condition, it is necessary to develop impact-resistant work rolls to improve the service life and stability of work rolls. In modern industrial production, the requirements for product quality and precision are getting higher and higher. For example, in the cold rolling process, in order to produce high-precision, high-quality sheet products, work rolls must not only have good wear resistance, but also excellent impact resistance to ensure the dimensional stability and surface quality of the work rolls during the rolling process, so that the thickness tolerance, surface flatness and other indicators of the sheet meet high standard requirements.
[0003] In the production process, the thickness and quality of the sheet material vary. As a result, the working rolls often require significant impact during the preparation process. Under prolonged impact and wear, the surface of the working rolls will be damaged, which will affect the processing quality of the working rolls. When the damage to the working rolls is severe, they may even be unable to make effective contact with the surface of the sheet material, making effective processing impossible.
[0004] A search revealed that Chinese Patent Publication No. CN201120445341.1 discloses a straightener work roll, which includes a work roll surface, a work roll transition section, and a bearing, wherein the connection between the work roll surface and the work roll transition section is an arc-shaped transition surface.
[0005] In the aforementioned patent, the working roller makes contact with the sheet material through its working roller surface during operation. Since the working roller surface needs to be straightened for different sheet material surfaces during production, it needs to have good wear resistance and fatigue resistance. However, the working roller surface in the aforementioned patent does not have any special treatment. As a result, when the working roller surface comes into contact with sheet materials of different materials during production, it is easy to cause damage to the roller surface. Therefore, in the long-term use, the working roller surface cannot effectively guarantee the straightening quality of the sheet material. Utility Model Content
[0006] The purpose of this invention is to provide an impact-resistant work roll. In this structure, multiple roller rings are arranged on the shaft core. During processing, the contact between the roller rings and the sheet metal, and the multiple heat dissipation holes inside the shaft core, provide good cooling and a certain degree of toughness to the shaft core. When the roller rings are processed in contact with different sheet metals, the shaft core evenly disperses the impact force when the roller rings are subjected to a large impact, thereby ensuring the stability of the roller rings during the production process and ensuring the processing quality of the sheet metal; thus solving the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An impact-resistant work roller includes a shaft core; the shaft core has a first roller diameter and a second roller diameter integrally formed at both ends; wherein, a concave ring is provided on the first roller diameter; and multiple keyways are formed at the end of the second roller diameter away from the shaft core; the keyways cooperate with a shaft head; wherein, multiple connecting pins are provided inside the shaft head; the connecting pins cooperate with the keyways; the cooperation between the connecting pins and the keyways ensures the stability of the shaft core driving the roller ring to rotate, and avoids the shaft head from spinning freely or rotating at inconsistent speeds;
[0009] As a further technical solution of this utility model, the surface of the shaft core is provided with multiple roller rings through bearings; the processing and production of the plate is realized through the contact between the roller rings and the surface of the plate.
[0010] As a further technical solution of this utility model, a heat dissipation hole is provided through the inside of the shaft core; the heat generated by the roller ring during operation is effectively transferred to the shaft core through the heat dissipation hole, thereby achieving the cooling effect of the shaft core;
[0011] As a further technical solution of this utility model, the cavity between the end of the second roller diameter and the inside of the shaft head is filled with sound-insulating cotton to reduce the noise generated between the shaft head and the second roller diameter.
[0012] As a further technical solution of this utility model, a transition arc angle is provided between the first roller diameter and the second roller diameter and the shaft core; this reduces the stress between the first roller diameter and the second roller diameter and the shaft core, and avoids breakage when subjected to large impacts.
[0013] As a further technical solution of this utility model, the distance between two adjacent roller rings can be effectively adjusted according to production needs, thereby meeting different production requirements.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, the roller ring is installed on the surface of the shaft core. The installation position of the roller ring can be effectively adjusted according to production needs, thus effectively meeting the different processing requirements of the sheet metal. The production process is completed through the contact between the roller ring and the sheet metal.
[0016] In this invention, when the roller ring processes plates of different materials, it may be subjected to varying degrees of impact. When the impact force on the roller ring is large, it will affect the processing quality of the roller ring. Therefore, multiple heat dissipation holes are opened inside the shaft core. The heat dissipation holes effectively cool the heat generated by the roller ring during the production process and transfer it to the shaft core, ensuring the stability of the installation between the shaft core and the roller ring. At the same time, the opening of the heat dissipation holes gives the shaft core a certain degree of toughness. When the impact force on the roller ring is transmitted to the shaft core, the toughness of the shaft core buffers the impact force, thereby ensuring the working efficiency and working quality of the roller ring.
[0017] In this invention, a transition arc angle is provided between the first and second roller diameters and the shaft core. This avoids hard impact between the first and second roller diameters and the shaft core during the operation of the working roller, which could cause breakage. A sound-insulating surface is filled between the second roller diameter and the shaft head, which effectively reduces the noise generated by the working roller during rotation. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0019] Figure 2 This utility model Figure 1 Another perspective structural diagram.
[0020] Figure 3 This utility model Figure 1 Side view.
[0021] Figure 4 This utility model Figure 3 AA sectional view.
[0022] Figure 5 This utility model Figure 1 A breakdown diagram.
[0023] In the diagram: 1-shaft core, 2-roller ring, 3-first roller diameter, 4-concave ring, 5-heat dissipation hole, 6-shaft head, 7-bearing, 8-second roller diameter, 9-keyway, 10-connecting pin. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-5 In this embodiment of the present invention, an impact-resistant work roller includes a shaft core 1; the shaft core 1 has a first roller diameter 3 and a second roller diameter 8 integrally formed at both ends; wherein, a concave ring 4 is provided on the first roller diameter 3; a plurality of keyways 9 are provided at the end of the second roller diameter 8 away from the shaft core 1; the keyways 9 cooperate with the shaft head 6; wherein, a plurality of connecting pins 10 are provided inside the shaft head 6; the connecting pins 10 cooperate with the keyways 9.
[0026] The surface of the shaft core 1 is provided with multiple roller rings 2 via bearings.
[0027] By adopting the above technical solution, the roller ring 2 is installed on the surface of the shaft core 1 during use. The installation position of the roller ring 2 can be effectively adjusted according to production needs, thus effectively meeting the different processing needs of the sheet metal. The work production is completed through the contact between the roller ring 2 and the sheet metal.
[0028] The shaft core 1 has a heat dissipation hole 5 through it.
[0029] In this embodiment, the cavity between the end of the second roller diameter 8 and the inside of the shaft head 6 is filled with sound insulation cotton.
[0030] By adopting the above technical solution, when the roller ring 2 processes and produces plates of different materials, the roller ring 2 may be subjected to different degrees of impact force. When the impact force on the roller ring 2 is large, it will affect the processing quality of the roller ring 2. Therefore, multiple heat dissipation holes 5 are opened inside the shaft core 1. The heat dissipation holes 5 effectively cool the heat generated by the roller ring 2 during the production process and transfer it to the shaft core 1, ensuring the stability of the installation between the shaft core 1 and the roller ring 2. At the same time, the opening of the heat dissipation holes 5 makes the shaft core 1 have a certain toughness. In this way, when the impact force on the roller ring 2 is transmitted to the shaft core 1, the toughness of the shaft core 1 can buffer the impact force, thereby ensuring the working efficiency and working quality of the roller ring 2.
[0031] In this embodiment, a transition arc angle is provided between the first roller diameter 3 and the second roller diameter 8 and the shaft core 1;
[0032] The spacing between two adjacent roller rings 2 can be effectively adjusted according to production needs;
[0033] By adopting the above technical solution, a transition arc angle is set between the first roller diameter 3 and the second roller diameter 8 and the shaft core 1. In this way, during the operation of the working roller, hard impact between the first roller diameter 3 and the second roller diameter 8 and the shaft core 1 is avoided, which could cause breakage. A sound insulation surface is filled between the second roller diameter 8 and the shaft head 6, which effectively reduces the noise generated by the working roller during rotation.
[0034] The working principle of this utility model is as follows: When in use, the roller ring 2 is installed on the surface of the shaft core 1. The installation position of the roller ring 2 can be effectively adjusted according to production needs, thus effectively meeting the different processing needs of the sheet metal. The production is completed through the contact between the roller ring 2 and the sheet metal.
[0035] When the roller ring 2 processes and produces plates of different materials, it may be subjected to different degrees of impact. When the impact force on the roller ring 2 is large, it will affect the processing quality of the roller ring 2. Therefore, multiple heat dissipation holes 5 are opened inside the shaft core 1. The heat dissipation holes 5 effectively cool the heat generated by the roller ring 2 during the production process and transfer it to the shaft core 1, ensuring the stability of the installation between the shaft core 1 and the roller ring 2. At the same time, the opening of the heat dissipation holes 5 gives the shaft core 1 a certain degree of toughness. When the impact force on the roller ring 2 is transmitted to the shaft core 1, the toughness of the shaft core 1 can buffer the impact force, thereby ensuring the working efficiency and working quality of the roller ring 2.
[0036] The first roller diameter 3 and the second roller diameter 8 are provided with a transition arc angle between them and the shaft core 1. This avoids hard impact between the first roller diameter 3 and the second roller diameter 8 and the shaft core 1 during the operation of the working roller, which could cause breakage. The sound insulation surface is filled between the second roller diameter 8 and the shaft head 6, which effectively reduces the noise generated by the working roller during rotation.
[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An impact-resistant work roll, characterized in that: Includes a shaft core (1); the shaft core (1) has a first roller diameter (3) and a second roller diameter (8) integrally formed at both ends; wherein, a concave ring (4) is provided on the first roller diameter (3); a plurality of keyways (9) are provided at the end of the second roller diameter (8) away from the shaft core (1); the keyways (9) cooperate with the shaft head (6); wherein, a plurality of connecting pins (10) are provided inside the shaft head (6); the connecting pins (10) cooperate with the keyways (9); a plurality of roller rings (2) are provided on the surface of the shaft core (1) through bearings.
2. The impact-resistant work roll according to claim 1, characterized in that: The shaft core (1) has a heat dissipation hole (5) through it.
3. The impact-resistant work roll according to claim 2, characterized in that: The cavity between the end of the second roller diameter (8) and the inside of the shaft head (6) is filled with sound insulation cotton.
4. The impact-resistant work roll according to claim 3, characterized in that: The first roller diameter (3) and the second roller diameter (8) are provided with a transition arc angle between them and the shaft core (1).
5. The impact-resistant work roll according to claim 1, characterized in that: The spacing between two adjacent roller rings (2) can be effectively adjusted according to production needs.