Protective device for pressure sensor of rolling mill

Abstract

The utility model relates to a rolling mill pressure sensor protection device which is connected to a rolling mill housing and comprises a base, a base plate, positioning plates and a cover plate, a pressure sensor is arranged in an inner cavity of the base, the base plate is arranged at the bottom of the pressure sensor, the positioning plates are arranged on the two sides of the pressure sensor, and the cover plate is arranged on the base. The base covers the positioning plate, the cover plate covers the top of the pressure sensor, the cover plate is in bolted connection with the base, and sealant is smeared at the joint of the cover plate and the base. The pressure sensor has a waterproof function, the pressure sensor works in a closed space, damage of oil sludge, water and iron sheets to the pressure sensor is eliminated, and the service life of the pressure sensor is prolonged. A disc spring is arranged in a bolt connection structure of the cover plate and the base, so that pre-tightening force is formed between the cover plate and the pressure sensor, the pressure sensor is tightly contacted with the cover plate, and the pressure detection precision of the rolling mill is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling mills, in particular to a rolling mill pressure sensor protection device. Background Art

[0002] The finishing mill pressure is detected by a pressure sensor installed on the arch base.

[0003] Existing pressure sensor protection utilizes only a surface-mounted cover, resulting in an open assembly. This allows water, oil sludge, and metal sheets to enter the pressure sensor and cover. This poor waterproofing results in the pressure sensor being immersed in water and oil sludge for extended periods, causing frequent damage and further corrosion of the pressure sensor cover, leading to poor contact surfaces. This impacts rolling mill accuracy and shortens the life of the pressure sensor due to the uneven load-bearing surface.

[0004] Existing patent CN202366950U discloses a pressure sensor fixture for a refining mill, comprising a base and a machine base, the machine base being fixed to the base, a pressure sensor being fixed to the machine base, and drainage grooves being provided in the middle of both sides of the machine base. This patent lacks a protective device for the pressure sensor, making it susceptible to damage when exposed to contaminants such as oil sludge. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a rolling mill pressure sensor protection device to solve the problem that pollutants affect the detection accuracy of the sensor due to poor protection.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A rolling mill pressure sensor protection device, which is connected to the rolling mill arch and includes a base, a bottom plate, a positioning plate, and a cover plate. The pressure sensor is placed in the inner cavity of the base, the bottom plate is placed at the bottom of the pressure sensor, the positioning plates are placed on both sides of the pressure sensor, the base cover is arranged on the outside of the positioning plate, and the cover plate cover is arranged on the top of the pressure sensor. The cover plate is connected to the base with bolts, and sealant is applied to the connection between the cover plate and the base.

[0008] The base is a frame structure composed of two plywood and two end plates. The two plywood are clamped on both sides of the pressure sensor and are bolted to the rolling mill arch. The lower part of the plywood is provided with a through slot 1 for placement and positioning, and the upper part of the plywood is provided with a through slot 2 for matching the connection cover plate.

[0009] The second through slot of the clamping plate is connected by cooperating with the edge protrusion of the cover plate, and the cover plate and the clamping plate are connected by fastening bolts. A gap is provided between the plane of the second through slot and the bottom surface of the edge protrusion of the cover plate.

[0010] The fastening bolt is provided with a disc spring.

[0011] The positioning plate is connected to the rolling mill arch with bolts.

[0012] Compared with the existing technology, the beneficial effects of the utility model are:

[0013] This utility model is waterproof, and the pressure sensor operates in a closed space, eliminating damage to the pressure sensor from oil, mud, water, and iron sheets, thereby extending the life of the pressure sensor. A disc spring is provided in the bolted connection structure between the cover plate and the base, creating a pre-tightening force between the cover plate and the pressure sensor, ensuring close contact between the pressure sensor and the cover plate, and ensuring the accuracy of the rolling mill pressure detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Figure 2 It is a side view of the present utility model.

[0016] Figure 3 A top view of the base.

[0017] Figure 4 Schematic diagram of the structure of the splint.

[0018] In the figure: rolling mill arch 1, base 2, bottom plate 3, positioning plate 4, cover plate 5, pressure sensor 6, clamping plate 21, end plate 22, through slot 1 23, through slot 2 24, fastening bolts 25, disc spring 26. DETAILED DESCRIPTION

[0019] In the description of this utility model, it should be understood that the terms "first," "second," etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means more than two.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] like Figures 1-4A rolling mill pressure sensor protection device is connected to the rolling mill arch 1, and includes a base 2, a bottom plate 3, a positioning plate 4, and a cover plate 5. The pressure sensor 6 is placed in the inner cavity of the base 2, the bottom plate 3 is placed at the bottom of the pressure sensor 6, and the positioning plates 4 are placed on both sides of the pressure sensor 6. The positioning plates 4 are bolted to the rolling mill arch 1, and the positioning plates 4 limit the lateral displacement of the pressure sensor 6.

[0022] The base 2 is covered on the outside of the positioning plate 4, and the cover plate 5 is covered on the top of the pressure sensor 6. The cover plate 5 is connected to the base 2 with bolts, and sealant is applied to the connection between the cover plate 5 and the base 2.

[0023] The base 2 is a frame structure consisting of two clamping plates 21 and two end plates 22. The two clamping plates 21 clamp on both sides of the pressure sensor 6 and are bolted to the rolling mill arch 1. The inner bottom of each clamping plate 21 is provided with a through slot 23 for accommodating the positioning plate 4. The positioning plate 4 is entirely placed in the through slot 23. The inner side of the positioning plate 4 is flush with the inner side of the clamping plates 21, and at the same time serves as a limit for the pressure sensor 6. The inner top of each clamping plate 21 is provided with a through slot 24 for mating with the cover plate 5.

[0024] The second through-slot 24 of the clamping plate 21 engages with the edge protrusion of the cover plate 5, and the cover plate 5 and clamping plate 21 are connected by fastening bolts 25. A gap is provided between the plane of the second through-slot 24 and the bottom surface of the edge protrusion of the cover plate 5. The fastening bolts 25 are equipped with disc springs 26. When the cover plate 5 and clamping plate 21 are connected by fastening bolts 25, the lower surface of the top plate of the cover plate 5 is tightly fitted with the upper surface of the pressure sensor 6, ensuring the detection accuracy of the pressure sensor 6.

[0025] To make the purpose, technical solution, and technical effects of the present invention more clearly understood, the technical solutions in the embodiments of the present invention are now described clearly and completely. However, the embodiments described below are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art without inventive effort in conjunction with the embodiments of the present invention are also within the scope of protection of the present invention.

[0026] Example

[0027] A rolling mill pressure sensor protective device, connected to the rolling mill arch 1, comprises a base 2, a bottom plate 3, a positioning plate 4, and a cover plate 5. The pressure sensor 6 is positioned within the inner cavity of the base 2, and the bottom plate 3 is positioned beneath the pressure sensor 6. The cover plate 5 and bottom plate 3 are made of 42CrMov and heat-treated to achieve a surface hardness of HCR45-50, improving wear and corrosion resistance and ensuring rolling mill accuracy. Positioning plates 4 are positioned on either side of the pressure sensor 6 and bolted to the rolling mill arch 1, limiting lateral displacement of the pressure sensor 6.

[0028] The base 2 is covered on the outside of the positioning plate 4, and the cover plate 5 is covered on the top of the pressure sensor 6. The cover plate 5 is connected to the base 2 by bolts, and sealant is applied to the connection between the cover plate 5 and the base 2.

[0029] The base 2 includes two clamping plates 21 and two end plates 22. The two clamping plates 21 are symmetrically arranged. The ends of the two clamping plates 21 are respectively welded to the end plates 22 to form a frame structure. The two clamping plates 21 are clamped on both sides of the pressure sensor 6 and are bolted to the rolling mill arch 1. The inner bottom of each clamping plate 21 is provided with a through groove 1 23 for accommodating the positioning plate 4. The positioning plate 4 is entirely placed in the through groove 1 23. The inner side of the positioning plate 4 is flush with the inner side of the clamping plate 21, and at the same time, it serves as a limit for the pressure sensor 6. The inner top of each clamping plate 21 is provided with a through groove 2 24 for matching the connection cover plate 5.

[0030] The second through-slot 24 of the clamping plate 21 is engaged with the edge protrusion of the cover plate 5, and the cover plate 5 and the clamping plate 21 are connected by fastening bolts 25. A gap is provided between the plane of the second through-slot 24 and the bottom surface of the edge protrusion of the cover plate 5. The fastening bolts 25 are equipped with disc springs 26. This provides a pre-tightening force for the cover plate 5 during installation. When the cover plate 5 and the clamping plate 21 are connected by the fastening bolts 25, the lower surface of the top plate of the cover plate 5 is tightly fitted with the upper surface of the pressure sensor 6.

[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 variations may be made to these embodiments without departing from the principles and basic spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rolling mill pressure sensor protection device, characterized in that: The protective device is connected to the rolling mill arch and includes a base, a bottom plate, a positioning plate, and a cover plate. The pressure sensor is placed in the inner cavity of the base, the bottom plate is placed at the bottom of the pressure sensor, the positioning plate is placed on both sides of the pressure sensor, the base cover is arranged on the outside of the positioning plate, and the cover plate cover is arranged on the top of the pressure sensor. The cover plate is connected to the base with bolts, and sealant is applied to the connection between the cover plate and the base.

2. A rolling mill pressure sensor protection device according to claim 1, characterized in that: The base is a frame structure composed of two plywood and two end plates. The two plywood are clamped on both sides of the pressure sensor and are bolted to the rolling mill arch. The lower part of the plywood is provided with a through slot 1 for placement and positioning, and the upper part of the plywood is provided with a through slot 2 for matching the connection cover plate.

3. A rolling mill pressure sensor protection device according to claim 2, characterized in that: The second through slot of the clamping plate is connected by cooperating with the edge protrusion of the cover plate, and the cover plate and the clamping plate are connected by fastening bolts. A gap is provided between the plane of the second through slot and the bottom surface of the edge protrusion of the cover plate.

4. A rolling mill pressure sensor protection device according to claim 3, characterized in that: The fastening bolt is provided with a disc spring.

5. A rolling mill pressure sensor protection device according to claim 1, characterized in that: The positioning plate is connected to the rolling mill arch with bolts.

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