Roll bar protection structure and chain link

Abstract

A roller protection structure and chain links are disclosed. The roller protection structure includes multiple chain links arranged circumferentially along the roller, with adjacent chain links hinged together. By employing this structure, the chain links can wrap around the outer circumferential surface of the roller, providing protection and reducing roller wear, through the hinged connection between adjacent chain links and the circumferential arrangement of multiple chain links.

Description

Technical Field

[0001] This invention relates to the field of heat treatment equipment technology, and in particular to a roller protection structure and chain link. Background Technology

[0002] As one of the mainstream directions of automotive lightweighting technology, thermoforming technology is being used more and more widely in the passenger car body parts manufacturing industry.

[0003] Roller hearth furnaces are primarily used for heating and conveying sheet metal, and for achieving complete austenitization. A typical roller hearth furnace consists of a loading roller platform, furnace body, internal ceramic roller conveyor, discharge platform, heating system, and electrical control system. Sheets are loaded onto the loading roller platform, enter the furnace for heating, and are then rapidly conveyed to the discharge platform for forming and quenching. The internal ceramic roller conveyor consists of multiple parallel ceramic rollers supported at both ends by bearing seats. Ceramic rollers come in two types: solid and hollow. Hollow rollers are the most commonly used and are most susceptible to corrosion. A common method for corrosion protection is applying a special coating, but this coating technology is controlled by foreign companies and is not sold externally. Even imported coated rollers typically have a lifespan of only 8-10 months. In the latter half of their lifespan, corrosion from the coating on the steel plate causes nodules to form on the roller surface, resulting in changes in the roller's outer diameter. This affects the conveying of the material, and in severe cases, can lead to overlapping or significant deflection, preventing transfer to the next process. If corrosion reaches a certain level, the roller will break and fail.

[0004] Domestic companies have implemented a corrosion barrier by encasing ceramic rollers in heat-resistant steel pipes, welding one end to the ceramic roller. However, this method is only suitable for solid rollers where straightness and other shape tolerances can be relatively well controlled. The unique firing process of hollow rollers results in larger deviations in straightness and roundness, making it impossible to smoothly fit the heat-resistant steel pipes onto the hollow ceramic rollers. Even if they are fitted, they lack interchangeability. Furthermore, the coefficient of thermal expansion of the rollers differs from that of metals when heated, potentially leading to premature damage. Additionally, rollers that mate with steel pipes require special manufacturing, increasing replacement costs. Different diameter rollers necessitate different heat-resistant steel pipes. Therefore, a roller protection structure and linkage are urgently needed to provide protection for the rollers and reduce wear. Summary of the Invention

[0005] In view of the above-mentioned problems of the prior art, this application provides a roller protection structure and chain link to provide protection for the roller and reduce roller wear.

[0006] To achieve the above objectives, the first aspect of this application provides a roller protection structure, including multiple chain links, wherein the multiple chain links are arranged circumferentially along the roller, and two circumferentially adjacent chain links are hinged together.

[0007] By using the above structure, multiple chain links can be arranged along the circumference of the roller bar by hinged between two adjacent chain links, so that the chain links can wrap around the outer circumference of the roller bar, providing protection for the roller bar and reducing roller bar wear.

[0008] Furthermore, by adjusting the number of circumferential links on the roller bar, the roller bar protection structure can be adapted to roller bars of different diameters. This improves the adaptability of the roller bar protection structure.

[0009] As one possible implementation of the first aspect, the link includes: a main body portion, which is a rectangular sheet-like component; a first connecting portion, which is disposed at one side edge of the main body portion; and a second connecting portion, which is disposed at one side edge of the main body portion opposite to the first connecting portion, and the second connecting portion is hinged to the first connecting portion.

[0010] By adopting the above structure, the main body of the rectangular sheet structure can increase the coverage area of ​​the outer circumference of the roller bar through the hinge between the first connecting part and the second connecting part, thereby improving the protection effect of the roller bar.

[0011] As one possible implementation of the first aspect, the first connecting portion is located at the middle position of the edge of the main body portion; two second connecting portions are provided, respectively located at both ends of the edge of the main body portion, and the distance between the two second connecting portions is adapted to the first connecting portion.

[0012] By adopting the above structure, after the first connecting part and the second connecting part are hinged, the first connecting part is positioned between the two second connecting parts, thereby reducing the gap between two adjacent chain links and improving the protection effect on the roller.

[0013] As one possible implementation of the first aspect, it further includes: a connecting shaft, on which the first connecting portion and the second connecting portion of the circumferentially adjacent link pass.

[0014] The above provides a specific method for achieving a hinged connection between the first connecting part and the second connecting part. The first connecting part and the second connecting part achieve the hinged connection by rotating on the connecting shaft.

[0015] As one possible implementation of the first aspect, the plurality of said chain links are arranged along the axial direction of said roller.

[0016] By adopting the above structure, multiple chain links can be arranged along the axial direction of the roller, thereby improving the adaptability of the roller protection structure to the length of the roller.

[0017] A second aspect of this application provides a link for protecting a roller bar, wherein a plurality of the links are arranged circumferentially along the roller bar, and two circumferentially adjacent links are hinged together.

[0018] By using the above structure, multiple chain links can be arranged along the circumference of the roller bar by hinged between two adjacent chain links, so that the chain links can wrap around the outer circumference of the roller bar, providing protection for the roller bar and reducing roller bar wear.

[0019] Furthermore, by adjusting the number of circumferential links on the roller bar, the roller bar protection structure can be adapted to roller bars of different diameters. This improves the adaptability of the roller bar protection structure.

[0020] As a possible implementation of the second aspect, it includes: a main body portion, which is a rectangular sheet-like component; a first connecting portion, which is disposed at one side edge of the main body portion; and a second connecting portion, which is disposed at one side edge of the main body portion opposite to the first connecting portion, and the second connecting portion is hinged to the first connecting portion.

[0021] By adopting the above structure, the main body of the rectangular sheet structure can increase the coverage area of ​​the outer circumference of the roller bar through the hinge between the first connecting part and the second connecting part, thereby improving the protection effect of the roller bar.

[0022] As a possible implementation of the second aspect, the first connecting portion is located at the middle position of the edge of the main body portion; two second connecting portions are provided, respectively located at both ends of the edge of the main body portion, and the distance between the two second connecting portions is adapted to the first connecting portion.

[0023] By adopting the above structure, after the first connecting part and the second connecting part are hinged, the first connecting part is positioned between the two second connecting parts, thereby reducing the gap between two adjacent chain links and improving the protection effect on the roller.

[0024] As a possible implementation of the second aspect, the first connecting portion and the second connecting portion are disposed on one side surface of the main body portion.

[0025] With the above structure, when installing the chain links, one side of the main body can be set towards the roller, so that the side of the chain link facing away from the roller remains flat, thus avoiding affecting the conveying of the material.

[0026] As one possible implementation of the second aspect, the first connecting portion and / or the second connecting portion are formed by extending the main body portion outward and curling it.

[0027] By adopting the above structure, the first connecting part and the second connecting part are formed by extending the main body outward and winding it. This can reduce the production difficulty of the chain links, reduce production costs, and improve production efficiency.

[0028] As a possible implementation of the second aspect, the first connecting portion of one link and the second connecting portion of another link can be threaded onto the same connecting shaft.

[0029] The above provides a specific method for achieving a hinged connection between the first connecting part and the second connecting part. The first connecting part and the second connecting part achieve the hinged connection by rotating on the connecting shaft.

[0030] As a possible implementation of the second aspect, multiple chain links can be arranged along the axial direction of the roller.

[0031] By adopting the above structure, multiple chain links can be arranged along the axial direction of the roller, thereby improving the adaptability of the roller protection structure to the length of the roller.

[0032] These and other aspects of the invention will become more apparent from the following description of several embodiments. Attached Figure Description

[0033] The various features of the present invention and the relationships between them are further explained below with reference to the accompanying drawings. The drawings are exemplary; some features are not shown to scale, and some drawings may omit conventional features in the field of this application that are not essential to this application, or additional features that are not essential to this application may be shown. The combination of features shown in the drawings is not intended to limit the present application. Furthermore, throughout this specification, the same reference numerals refer to the same things. Specific descriptions of the drawings are as follows:

[0034] Figure 1 This is a three-dimensional structural diagram of the roller protection structure in the embodiments of this application;

[0035] Figure 2 for Figure 1 A three-dimensional structural diagram of the chain segment.

[0036] Explanation of reference numerals in the attached figures

[0037] 10 Roller protection structure; 20 Roller; 100 Chain link; 110 Main body; 120 First connecting part; 130 Second connecting part; 200 Connecting shaft. Detailed Implementation

[0038] The terms "first, second, third, etc." or similar terms such as module A, module B, module C, etc., used in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that a specific order or sequence may be interchanged where permitted so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0039] The term "comprising" as used in the specification and claims should not be construed as limiting itself to what follows; it does not exclude other elements. Therefore, it should be interpreted as specifying the presence of the mentioned features, integral components, but does not exclude the presence or addition of one or more other features, integrals, or components, or groups thereof. Thus, the statement "device comprising means A and B" should not be limited to a device consisting solely of components A and B.

[0040] The term "an embodiment" or "an embodiment" as used in this specification means that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in at least one embodiment of the invention. Therefore, the terms "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics can be combined in any suitable manner, as will be apparent to those skilled in the art from this disclosure.

[0041] The specific structure of the roller protection structure 10 in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0042] Figure 1 This is a three-dimensional structural diagram of the roller protection structure 10 in an embodiment of this application. Figure 1 As shown, the roller protection structure 10 in this embodiment includes multiple links 100 arranged circumferentially along the roller 20, with adjacent links 100 hinged together. By hinged adjacent links 100 and arranging multiple links 100 circumferentially along the roller 20, the links 100 can wrap around the outer circumferential surface of the roller 20, providing protection and reducing wear. Furthermore, by adjusting the number of links circumferentially connected to the roller 20, the roller protection structure 10 can be adapted to rollers 20 of different diameters. This improves the adaptability of the roller protection structure 10.

[0043] Figure 2 for Figure 1 A three-dimensional structural diagram of link 100 in the diagram. (See attached diagram.) Figure 2As shown, in some embodiments, the link 100 includes a main body 110, a first connecting portion 120, and a second connecting portion 130. The main body 110 is a rectangular sheet-like component. The first connecting portion 120 is located at one edge of the main body 110, and the second connecting portion 130 is located at the opposite edge of the main body 110. The second connecting portion 130 is hinged to the first connecting portion 120. The hinge between the first connecting portion 120 and the second connecting portion 130 in the rectangular sheet-like main body 110 increases the coverage area of ​​the outer periphery of the roller 20, thereby improving the protective effect on the roller 20.

[0044] In some embodiments, such as Figure 1 , Figure 2 As shown, the first connecting portion 120 is located at the middle of the edge of the main body portion 110, and two second connecting portions 130 are provided, respectively located at both ends of the edge of the main body portion 110. The distance between the two second connecting portions 130 is adapted to the distance between the first connecting portion 120. Therefore, after the first connecting portion 120 and the second connecting portion 130 are hinged, the first connecting portion 120 is positioned between the two second connecting portions 130, thereby reducing the gap between adjacent chain links 100 and improving the protection effect on the roller 20.

[0045] In some embodiments, such as Figure 1 As shown, the roller protection structure 10 in this embodiment of the application also includes a connecting shaft 200. The first connecting part 120 and the second connecting part 130 of the circumferentially adjacent chain link 100 are passed through the connecting shaft 200. The first connecting part 120 and the second connecting part 130 are hinged by rotating on the connecting shaft 200.

[0046] In some embodiments, such as Figure 1 As shown, multiple links 100 are arranged along the axial direction of the roller 20. By arranging multiple links 100 along the axial direction of the roller 20, the adaptability range of the roller protection structure 10 to the length of the roller 20 can be improved.

[0047] In some embodiments, such as Figure 1 As shown, the first connecting portion 120 and the second connecting portion 130 are disposed on one side surface of the main body portion 110. Therefore, when installing the chain links, one side surface of the main body portion 110 can be positioned towards the roller 20, thereby keeping the side surface of the chain link facing away from the roller 20 flat to avoid affecting the conveying of the material.

[0048] In some embodiments, such as Figure 2As shown, the first connecting portion 120 and / or the second connecting portion 130 are formed by extending and curling the main body portion 110 outward. By forming the first connecting portion 120 and the second connecting portion 130 by curling the main body portion 110 outward, the production difficulty of the chain links can be reduced, the production cost can be reduced, and the production efficiency can be improved.

[0049] The specific structure of the roller protection structure 10 of this application will be described in detail below with reference to the accompanying drawings, in a specific embodiment.

[0050] like Figure 1 , Figure 2 As shown, the roller protection structure 10 of this application includes multiple links 100 and a connecting shaft 200. Each link 100 includes a main body 110, a first connecting portion 120, and a second connecting portion 130. The main body 110 has a cuboid sheet structure. The first connecting portion 120 is located at the middle of one long edge of the main body 110. Two second connecting portions 130 are provided, located at the two ends of the other long edge of the main body 110. The length between the two second connecting portions 130 is the same as the length of the first connecting portion 120. When the two are aligned, the first main body 110 of one link 100 is located between the two second connecting portions 130 of the other link 100, completely filling the space between the two second connecting portions 130. The first connecting portion 120 and the second connecting portion 130 are provided with holes extending along the length direction of the main body portion 110. The connecting shaft 200 can pass through the holes of the first connecting portion 120 and the second connecting portion 130, allowing the first connecting portion 120 and the second connecting portion 130 to rotate on the connecting shaft 200. The first connecting portion 120 and the second connecting portion 130 can be, for example... Figure 1 The part shown extends outward from the main body 110 and is formed by curling. It can also be fixed to the main body 110 by welding or other means, and there is no limitation on this.

[0051] like Figure 1 As shown, the links 100 can be connected end to end to form a cylindrical shape, enclosing the roller 20 in the middle and providing protection for the roller 20. By changing the number of links 100 arranged circumferentially along the roller 20, the roller protection structure 10 can be adapted to rollers 20 of different diameters.

[0052] like Figure 1 As shown, the link 100 can be threaded onto the same connecting shaft 200, allowing the length of the roller protection structure 10 to be varied along the axial direction of the roller 20. Therefore, the number of links 100 arranged along the axial direction of the roller 20 can be adjusted to accommodate rollers 20 of different lengths.

[0053] like Figure 1As shown, the first connecting part 120 and the second connecting part 130 are disposed on the main body 110 biased towards the roller 20 side, so that the surface of the chain link 100 facing away from the roller 20 remains flat, thus avoiding affecting the conveying of the material sheet.

[0054] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present application has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A roller protection structure, characterized in that, The device includes multiple chain links and multiple connecting shafts. The chain links are arranged circumferentially along the roller, and adjacent chain links are hinged together by the connecting shafts. The chain links form a cylindrical shape by connecting end-to-end. By changing the number of chain links arranged circumferentially along the roller, it can accommodate rollers of different diameters. The chain links are also arranged axially along the roller. These axially arranged chain links pass through the connecting shafts, allowing the length of the roller protection structure to change axially along the roller. Each chain link includes: The main body is a rectangular sheet-like component; A first connecting portion is disposed at one side edge of the main body portion; the first connecting portion is disposed at the middle of the edge of the main body portion. The second connecting part is disposed on the edge of the main body opposite to the first connecting part. The second connecting part of one link is hinged to the first connecting part of another link. There are two second connecting parts, which are respectively disposed at both ends of the edge of the main body. The distance between the two second connecting parts is adapted to the first connecting part. A connecting shaft, wherein the first connecting portion and the second connecting portion of the circumferentially adjacent chain link pass through the same connecting shaft; The first connecting portion and the second connecting portion are disposed on the main body portion biased towards the side of the roller bar; the first connecting portion and the second connecting portion are formed by extending outward and curling the main body portion.

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