Protective device of hot line AGC position detection equipment

Abstract

The utility model relates to the field of AGC protection, in particular to a protection device of hot line AGC position detection equipment, which comprises a shell, a mounting groove is formed in the top of the shell, an AGC element is placed in the mounting groove of the shell, a top plate is placed on the outer wall of the top of the shell, threaded holes are formed in the outer walls of the top and the bottom of the shell, and the threaded holes are matched with the mounting groove. A through hole is formed in the top plate at the threaded hole, and a sealing assembly is arranged in the threaded hole; the sealing assembly comprises a sealing screw, a hollow groove formed in the center of the top end of the sealing screw and a contact rod slidably connected to the outer wall of the hollow groove. As the sealing screw enters, the contact rod compresses the hollow groove through the piston, oil in the hollow groove is extruded out of the capillary hole, the oil enters the threaded hole to be matched with the sealing screw to form an oil seal, and the joint is sealed; and moreover, the manufacturing process is simple, the weight is light, and the service life of the element is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of AGC protection, and particularly relates to a protection device for a hot wire AGC position detection device. Background Technique

[0002] Thickness accuracy is an important index for the product quality of a hot rolling mill. The quality of thickness accuracy control directly affects the performance of the strip steel. The AGC system is an extremely important part of the automatic control of a hot continuous rolling mill, and the AGC position detection device is the "eye" of AGC control. Once it is damaged, the control cannot be carried out and the rolling mill cannot continue to operate;

[0003] The AGC position detection device is installed inside the AGC hydraulic cylinder. The operating environment is harsh. If the electronic bin of the detection device gets damp or water enters, it will cause corrosion or short circuit of the electronic components. After the detection element is burned out, it will affect the normal operation of the detection device. Content of the Utility Model

[0004] The purpose of the utility model is to address the above-mentioned problems and deficiencies, and propose a protection device for a hot wire AGC position detection device: The outer shell material is a corrosion-resistant material, which can fully play a role in anti-corrosion, and has a simple manufacturing process, light weight, and can improve the service life of components, solving the problem of component damage caused by corrosion.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A protection device for a hot wire AGC position detection device, including an outer shell. An installation groove is opened at the top of the outer shell, and an AGC component is placed in the outer shell in the installation groove. A top plate is placed on the outer wall of the top of the outer shell, and threaded holes are opened on both the top and bottom outer walls of the outer shell. Through holes are opened at the positions of the threaded holes on the top plate, and a sealing component is provided in the threaded holes; The sealing component includes a sealing screw, a hollow groove opened at the center of the top end of the sealing screw, and a contact rod slidably connected to the outer wall of the hollow groove.

[0007] Preferably, a piston is screwed on the outer wall of the bottom end of the contact rod, and the piston is slidably connected to the inner wall of the hollow groove.

[0008] Preferably, equidistantly distributed capillary holes are opened on the outer wall of the sealing screw, and a washer is sleeved on the outer wall of the sealing screw.

[0009] Preferably, equidistantly distributed sealing grooves I are opened on the outer wall of the outer shell, and sealing rings are sleeved on both ends of the outer wall of the AGC component at the positions of the sealing grooves I.

[0010] Preferably, a second sealing groove is formed in the outer wall of the top of the housing, and a sealing ring is placed on the outer wall of the second sealing groove. A sealing gasket is placed on the outer wall of the top of the housing. The outer walls of the top of the sealing gasket and the sealing ring are in contact with the outer wall of the bottom of the top plate.

[0011] Preferably, the top plate and the outer wall of one end of the housing are staggered with each other, and grooves and protrusions adapted to each other are respectively provided on the outer walls of the top plate and the housing close to each other.

[0012] Preferably, the sealing rings at both ends of the AGC element are located at the center of the top plate and the center of the bottom of the housing.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. As the sealing screw enters, the contact rod compresses the hollow groove through the piston, and the oil inside the hollow groove is extruded from the capillary pores. The oil enters the threaded hole to cooperate with the sealing screw to form an oil seal, so as to seal the connection;

[0015] 2. The AGC element body is protected by metal and is easily corroded by corrosive liquids. The housing material of the present utility model is selected from nylon PA6 material, which can fully play the role of anti-corrosion, and has a simple manufacturing process, light weight, and improves the service life of the element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a protection device for a hot wire AGC position detection device proposed by the present utility model;

[0017] Figure 2 FIG. 2 is a schematic diagram of the unfolded structure of a protection device for a hot wire AGC position detection device proposed by the present utility model;

[0018] Figure 3 FIG. 3 is a schematic diagram of the bottom structure of a protection device for a hot wire AGC position detection device proposed by the present utility model;

[0019] Figure 4 FIG. 4 is a schematic diagram of a partial cross-sectional structure of a protection device for a hot wire AGC position detection device proposed by the present utility model;

[0020] Figure 5 FIG. 5 is a schematic diagram of the cross-sectional structure of a sealing screw of a protection device for a hot wire AGC position detection device proposed by the present utility model.

[0021] In the figure: 1 housing, 2 AGC element, 3 top plate, 4 threaded hole, 5 sealing assembly, 6 first sealing groove, 7 sealing ring, 8 sealing gasket, 9 second sealing groove, 10 sealing ring, 11 sealing screw, 12 washer, 13 hollow groove, 14 capillary pore, 15 contact rod, 16 piston. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Embodiment:

[0024] Referring to Figures 1-5 , it includes a housing 1. An installation groove is opened at the top of the housing 1, and an AGC element 2 is placed in the housing 1 in the installation groove. A top plate 3 is placed on the outer wall of the top of the housing 1, and threaded holes 4 are opened on both the outer walls of the top and bottom of the housing 1. A through hole is opened at the threaded hole 4 on the top plate 3, and a sealing assembly 5 is provided in the threaded hole 4. The body of the AGC element 2 is protected by metal and is easily corroded by corrosive liquids. The material of the housing 1 is selected as nylon PA6 material, which can fully play an anti-corrosion role, and the manufacturing process is simple. It is light in weight and convenient for installation;

[0025] The sealing assembly 5 includes a sealing screw 11, a hollow groove 13 opened at the center of the top end of the sealing screw 11, and a contact rod 15 slidably connected to the outer wall of the hollow groove 13. When the sealing screw 11 is installed, the contact rod 15 first contacts the end of the threaded hole 4. As the sealing screw 11 enters, the contact rod 15 compresses the hollow groove 13 through a piston 16, and squeezes the oil inside the hollow groove 13 out from the capillary holes 14. The oil enters the threaded hole 4 to form an oil seal with the sealing screw 11 to seal the connection.

[0026] A piston 16 is screwed on the outer wall of the bottom end of the contact rod 15, and the piston 16 is slidably connected to the inner wall of the hollow groove 13.

[0027] The outer wall of the sealing screw 11 is provided with capillary holes 14 distributed at equal intervals, and a washer 12 is sleeved on the outer wall of the sealing screw 11. The sealing screw 11 is screwed into the threaded hole 4 at the bottom of the housing 1, and the other end of the sealing screw 11 is fixed in the AGC element 2, thereby fixing the AGC element 2 in the housing 1 to avoid shaking.

[0028] Sealing grooves 1 6 are opened on the outer wall of the housing 1 at equal intervals, and sealing rings 7 are sleeved on both ends of the outer wall of the housing 1 and the AGC element 2 at the sealing grooves 1 6.

[0029] A sealing groove 2 9 is opened on the outer wall of the top of the housing 1, and a sealing ring 10 is placed on the outer wall of the sealing groove 2 9. A sealing gasket 8 is placed on the outer wall of the top of the housing 1. The top outer walls of the sealing gasket 8 and the sealing ring 10 are in contact with the bottom outer wall of the top plate 3. As the sealing screw 11 is tightened on the top plate 3, the top plate 3 compresses the sealing gasket 8 and the sealing ring 10 to seal the connection between the top plate 3 and the housing 1.

[0030] The top plate 3 intersects with the outer wall at one end of the outer shell 1, and grooves and protrusions adapted to each other are provided on the outer walls of the mutually approaching sides of the top plate 3 and the outer shell 1 respectively.

[0031] The sealing rings 7 at both ends of the AGC element 2 are located at the center of the top plate 3 and the center of the bottom of the outer shell 1. The intersecting structure of the top plate 3 and one end of the outer shell 1 further improves the sealing performance. The washer 12 on the sealing screw 11 seals the threaded hole 4 first, improving the overall sealing performance and preventing the internal AGC element 2 from being damaged.

[0032] Working principle: During use, place the AGC element inside the outer shell 1, and pass the wire harness of the AGC element 2 through the centers of the outer shell 1 and the top plate 3. The sealing ring 7 seals the wire harness. Use a tool to screw the sealing screw 11 into the threaded hole 4 at the bottom of the outer shell 1. The other end of the sealing screw 11 is fixed in the AGC element 2, thus fixing the AGC element 2 in the outer shell 1 to prevent shaking. Then, screw the sealing screw 11 into the threaded hole 4 at the top of the top plate 3 and the outer shell 1 to fix the whole in the cylinder body. The multiple sealing rings 7 on the outer wall of the outer shell 1 are used for sealing to prevent water vapor and other substances from entering the installation area. When installing the sealing screw 11, the contact rod 15 first contacts the end of the threaded hole 4. As the sealing screw 11 enters, the contact rod 15 compresses the hollow groove 13 through the piston 16, squeezing the oil inside the hollow groove 13 out through the capillary holes 14. The oil enters the threaded hole 4 to cooperate with the sealing screw 11 to form an oil seal for sealing the connection. As the sealing screw 11 is tightened on the top plate 3, the top plate 3 compresses the gasket 8 and the sealing ring 10 to seal the connection between the top plate 3 and the outer shell 1. The intersecting structure of the top plate 3 and one end of the outer shell 1 further improves the sealing performance. The washer 12 on the sealing screw 11 seals the threaded hole 4 first, improving the overall sealing performance and preventing the internal AGC element 2 from being damaged.

[0033] The body of the AGC element 2 is protected by metal and is easily corroded by corrosive liquids. The material of the outer shell 1 is selected as nylon PA6 material, which can fully play the role of anti-corrosion, and has a simple manufacturing process, is light in weight and convenient for installation.

[0034] In order to achieve the purpose of waterproof vapor in the design of the outer shell 1, six sealing grooves -6 are designed around the outer shell, and different numbers and sizes of sealing rings 7 can be configured according to different sealing requirements to achieve a good sealing effect.

[0035] The exemplary embodiments of the present utility model are described in detail with reference to the embodiments in the text. However, those skilled in the art can understand that, without departing from the concept of the present utility model, various modifications and alterations can be made to the above specific embodiments, and various combinations can be made to the technical features and structures proposed by the present utility model, without exceeding the protection scope of the present utility model. The protection scope of the present utility model is determined by the appended claims. The foregoing description of the specific exemplary embodiments of the present utility model is not intended to limit the present utility model to the precise forms disclosed, and it is obvious that many changes and variations can be made in accordance with the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present utility model, as well as various different selections and alterations. The scope of the present utility model is intended to be defined by the claims and their equivalents.

Claims

1. A protective device for a hot-wire AGC position detection device, comprising a housing (1), characterized in that: The top of the housing (1) is provided with a mounting groove, and the housing (1) is provided with an AGC element (2) in the mounting groove, a top plate (3) is placed on the top outer wall of the housing (1), and threaded holes (4) are provided on the top and bottom outer walls of the housing (1), a through hole is provided on the top plate (3) at the threaded hole (4), and a sealing component (5) is provided in the threaded hole (4); The sealing assembly (5) comprises a sealing screw (11), a hollow groove (13) formed at the center of the top end of the sealing screw (11), and a contact rod (15) slidably connected to the outer wall of the hollow groove (13).

2. The protective device of the hot-wire AGC position detection device according to claim 1, characterized in that: A piston (16) is threadedly connected to the outer wall of the bottom end of the contact rod (15), and the piston (16) is slidably connected to the inner wall of the hollow groove (13).

3. The protective device of the hot-wire AGC position detection device according to claim 1, characterized in that: The outer wall of the sealing screw (11) is provided with capillary holes (14) distributed at equal distances, and the outer wall of the sealing screw (11) is sleeved with a gasket (12).

4. The protective device of the hot-wire AGC position detection device according to claim 1, characterized in that: The outer wall of the housing (1) is provided with sealing grooves (6) distributed at equal distances, and the outer walls of the housing (1) at both ends of the sealing groove (6) and the AGC element (2) are both provided with sealing rings (7).

5. The protective device of the hot-wire AGC position detection device according to claim 1, characterized in that: The top outer wall of the housing (1) is provided with a second sealing groove (9), and a sealing ring (10) is placed on the outer wall of the second sealing groove (9). A sealing gasket (8) is placed on the top outer wall of the housing (1), and the top outer walls of the sealing gasket (8) and the sealing ring (10) are in contact with the bottom outer wall of the top plate (3).

6. The protective device of the hot-wire AGC position detection device according to claim 1, characterized in that: The top plate (3) and the outer wall at one end of the outer shell (1) are interlaced with each other, and the outer walls on one side of the top plate (3) and the outer shell (1) close to each other are respectively provided with matching grooves and protrusions.

7. The protective device of the hot-wire AGC position detection device according to claim 4, characterized in that: The sealing rings (7) at both ends of the AGC element (2) are located at the center of the top plate (3) and the center of the bottom of the housing (1).

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