Novel protective plate device for layer cooling roller way of hot-rolled plate strip production line

Abstract

The utility model relates to the technical field of layer cooling roller bed guard plates, in particular to a novel guard plate device for a layer cooling roller bed of a hot rolled strip production line, which comprises a guard plate body, a vertical connecting plate fixed on one side of the guard plate body, a connecting transverse plate fixed between the bottom end of the vertical connecting plate and the guard plate body, and an arc-shaped structure close to one end of the guard plate body. A pair of connecting holes is formed in the upper side of the connecting transverse plate. The utility model solves the problems that the span of the existing layer cooling roller bed guard plate is long, and the roller replacement time is long due to inconvenience in hoisting; the threads of the bearing seat are easy to rust, and the guard plate is not firmly fastened; and the side spraying bracket is welded on a protective plate, so that the side spraying is required to be disassembled for roller replacement.

Description

Technical Field

[0001] This utility model relates to the technical field of layered cooling roller conveyor guard plates, specifically to a novel guard plate device for layered cooling roller conveyors in hot-rolled strip production lines. Background Technology

[0002] The main function of the guard plates is to block water and guide the strip steel when it deviates from its course, preventing the strip head from hitting the guard plate and causing scrap steel. The original design had a long span between the guard plates on the cold roller conveyor, with one guard plate spanning five layers of cold rollers. The guard plates were fixed together with screws through bolt holes on the bearing seats of each layer of cold rollers.

[0003] The following problems exist with the cooling roller conveyor guard plate during use:

[0004] 1. The long span of the laminar flow roller guide plates makes lifting the plates extremely inconvenient and time-consuming when replacing rollers. 2. Because the laminar flow rollers require cooling water during the rolling process, the threaded holes on the roller bearing housings are prone to water ingress and corrosion, leading to thread failure and loss of fixing screws, resulting in loose guide plate engagement. 3. The laminar flow side spray bracket is welded to the guide plate. Due to the long length of the guide plate, the side spray must also be disassembled when replacing the rollers around the side spray, making roller replacement difficult. Utility Model Content

[0005] The technical problems to be solved by this utility model are: the existing cold roller conveyor guard plates have long spans, making hoisting inconvenient and causing long roll replacement times; the bearing seat threads are prone to corrosion, and the guard plates do not fit securely; the side spray bracket is welded to the guard plate, which increases the difficulty of roll replacement by requiring the removal of the side spray.

[0006] To solve the above problems, the technical solution adopted by this utility model is a new type of guard plate device for the cold roller conveyor of a hot-rolled strip production line, including a guard plate body, a vertical connecting plate fixed on one side of the guard plate body, a connecting horizontal plate fixed between the bottom end of the vertical connecting plate and the guard plate body, the guard plate body near one end having an arc-shaped structure, and a pair of connecting holes opened on the upper side of the connecting horizontal plate.

[0007] As a further embodiment of this utility model: a bearing seat structure is provided below the connecting horizontal plate, and the connecting horizontal plate is connected and fixed to the bearing seat structure by bolts.

[0008] As a further embodiment of this utility model, the vertical connecting plate has lifting holes on its side for easy hoisting.

[0009] As a further embodiment of this utility model: an arc-shaped groove is provided at the bottom of the guard plate body to reserve space for the rotation of the roller.

[0010] Compared with the prior art, the advantages of this utility model are as follows: In this application, the guard plate is installed separately on each roller and is joined together by two through bolts and the bearing seat of the cooling roller, which avoids the corrosion of the threaded hole in the original design. The guard plate can be replaced together with the cooling roller, saving about 50% of the time for replacing the cooling roller. The transition part between adjacent guard plates adopts an arc structure with a large chamfer transition to avoid the impact of the strip head on the guard plate. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a three-view drawing of the overall structure of a novel protective plate device for the cold roller conveyor in a hot-rolled strip production line according to this utility model.

[0013] Figure 2 This is a schematic diagram of the installation of the guard plate body in a novel guard plate device for the cold roller conveyor of a hot-rolled strip production line according to this utility model.

[0014] Figure 3 This is a top view of the installation of the guard plate body in a novel guard plate device for the cold roller conveyor of a hot-rolled strip production line according to this utility model.

[0015] In the attached image:

[0016] 1. Protective plate body; 2. Vertical connecting plate; 3. Connecting horizontal plate; 4. Bearing seat structure; 1.1. Arc groove; 2.1. Lifting hole; 3.1. Connecting hole. Detailed Implementation

[0017] 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.

[0018] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0019] Combined with appendix Figure 1-3 It can be seen that the protective plate body 1 is included, a vertical connecting plate 2 is fixed on one side of the protective plate body 1, a connecting horizontal plate 3 is fixed between the bottom end of the vertical connecting plate 2 and the protective plate body 1, the protective plate body 1 has an arc-shaped structure near one end, and a pair of connecting holes 3.1 are opened on the upper side of the connecting horizontal plate 3.

[0020] A bearing seat structure 4 is provided below the connecting horizontal plate 3, and the connecting horizontal plate 3 is connected and fixed to the bearing seat structure 4 by bolts; a lifting hole 2.1 is provided on the side of the vertical connecting plate 2 for easy hoisting; an arc groove 1.1 is provided at the bottom of the guard plate body 1 to reserve space for the rotation of the roller.

[0021] The working principle of this application is as follows: When installing the guard plate, firstly, a steel plate for fastening is welded to the upper surface of the laminar flow roller bearing seat structure 4. Before welding, the steel plate must be accurately positioned, and holes for bolt fastening are machined on the steel plate. After the steel plate welding is completed, the new guard plate can be installed. The connecting cross plate 3 is fastened together with the laminar flow roller bearing seat structure 4 using through bolts. When installing the new guard plate, attention should be paid to the orientation of the guard plate; the large chamfer between adjacent guard plates must face the rolling direction. See [link to relevant documentation]. Figure 3 If rollers need to be replaced, new protective plates must be pre-installed on the bearing seats of the rollers to be put into operation.

[0022] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A novel guard plate device for the cold roller conveyor of a hot-rolled strip production line, characterized in that: Includes a guard plate body (1), a vertical connecting plate (2) is fixed on one side of the guard plate body (1), a connecting horizontal plate (3) is fixed between the bottom end of the vertical connecting plate (2) and the guard plate body (1), the guard plate body (1) has an arc-shaped structure near one end, and a pair of connecting holes (3.1) are opened on the upper side of the connecting horizontal plate (3).

2. The novel guard plate device for the cold roller conveyor of a hot-rolled strip production line according to claim 1, characterized in that: The connecting horizontal plate (3) is provided with a bearing seat structure (4) below it, and the connecting horizontal plate (3) is connected and fixed to the bearing seat structure (4) by bolts.

3. The novel guard plate device for the cold roller conveyor of a hot-rolled strip production line according to claim 1, characterized in that: The vertical connecting plate (2) has a lifting hole (2.1) on its side.

4. A novel guard plate device for the cold roller conveyor of a hot-rolled strip production line according to claim 1, characterized in that: The bottom end of the guard plate body (1) is provided with an arc-shaped groove (1.1).

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