Insulation sleeve for hot-rolled steel billet

Abstract

The utility model discloses a heat preservation sleeve for a hot-rolled steel billet. The heat preservation sleeve comprises a heat preservation sleeve body, side plates, a rotating device, a heat insulation plate, a supporting plate and a supporting column. The side plates are rotationally connected with the heat preservation sleeve body. The supporting columns are evenly distributed on the bottom side in the heat preservation sleeve. Two ends of the supporting plate are respectively connected with the supporting column and the heat-insulating plate; the rotating device comprises a hinge rod I, a hydraulic cylinder, a rotating arm and a hinge rod II; the hydraulic cylinder is connected with the insulation sleeve body; the two ends of the first hinge rod are rotationally connected with the extending end of the hydraulic cylinder and the middle of the rotary arm. Two ends of the rotating arm are rotationally connected with the heat-insulating sleeve body and the hinge rod II respectively; the hinge rod II is rotationally connected with the side plate; insulating layers are arranged in the insulating sleeve body and the side plates; the hydraulic cylinder is matched with the first hinge rod and the second hinge rod to achieve stretching and folding of the side plates, the heat preservation sleeve body is convenient to open and close, a steel billet can be lifted to be away from the heat preservation sleeve through the heat insulation plate of the supporting plate on the supporting column, heat preservation layers are prevented from being excessively deformed due to heating, and the service life of the heat preservation sleeve body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat preservation sleeves, in particular to a heat preservation sleeve for hot-rolled steel billets. Background Art

[0002] Hot-rolled steel strip is a key industrial material, widely used in a variety of fields, including construction, automotive, machinery manufacturing, and shipbuilding. It exhibits high strength, good toughness, and weldability. In the construction sector, hot-rolled steel strip is used to create steel structures such as steel frames and beams, which are widely used in large buildings, bridges, and highways. In the automotive industry, hot-rolled steel strip is used to manufacture vehicle body and engine components, providing sufficient strength and rigidity to ensure vehicle safety and stability. It is also used in machinery manufacturing to manufacture various mechanical components, such as gears, bearings, and transmissions.

[0003] During the hot-rolled strip production process, billet temperature management is a key factor in ensuring product quality and production efficiency. Due to the large spans of hot-rolling lines, heat loss during billet transportation becomes a technical challenge that needs to be addressed. To minimize heat loss and maintain billet temperature, insulation devices are typically installed at the junction of the front and rear conveyor rollers of the production line. This provides an insulated environment for the billets, minimizing heat exchange with the surrounding cold air.

[0004] Traditional insulation devices primarily consist of an insulation sleeve and a cover. The sleeve is installed inside the cover, directly contacting the steel billet. During actual production, because the bottom of the sleeve is in direct contact with the hot steel billet, the inner panel is susceptible to thermal deformation, affecting the insulation effect. Furthermore, the bottom insulation panel is typically welded to the base plate, making it difficult to replace the deformed inner panel alone. This often necessitates replacing the entire insulation sleeve, shortening the sleeve's service life and increasing production costs. Utility Model Content

[0005] The purpose of the utility model is to provide an insulation cover for hot-rolled steel billets, which improves the thermal insulation effect, facilitates the replacement of insulation boards, prolongs the service life, and reduces maintenance costs, so as to solve the technical problems that the bottom of the insulation cover directly contacts the high-temperature steel billet, causing the inner side plate to be easily deformed by heat, the insulation board is welded to the bottom plate, and is difficult to replace separately, which shortens the service life and increases the production cost.

[0006] In order to solve the above technical problems, the solutions adopted by the present invention are as follows:

[0007] A heat preservation sleeve for hot-rolled steel billets, comprising a heat preservation sleeve body, side plates, a rotating device, heat insulation plates, a support plate and support columns; there are two side plates, which are respectively rotatably connected to the bottom ends of both sides of the heat preservation sleeve body; there are several support columns, which are evenly distributed on the inner bottom side of the heat preservation sleeve; the bottom end of the support plate is connected to the support column, and the top end is connected to the heat insulation plate;

[0008] The rotating device includes a first hinge rod, a hydraulic cylinder, a rotating arm and a second hinge rod; the lower end of the hydraulic cylinder is fixedly connected to one end of the heat preservation sleeve body; one end of the first hinge rod is rotatably connected to the extending end of the hydraulic cylinder, and the other end is rotatably connected to the middle of the rotating arm. The first hinge rod moves by the telescopic movement of the hydraulic cylinder; one end of the rotating arm is rotatably connected to the lower side of one end of the heat preservation sleeve body, and the other end is rotatably connected to one end of the second hinge rod. The rotation of the first hinge rod drives the rotation of the rotating arm, thereby driving the rotation of the second hinge rod; the other end of the second hinge rod is rotatably connected to the side plate. When the second hinge rod rotates, it drives the side plate to open or close; there are two first hinge rods, rotating arms and second hinge rods, which are symmetrically installed on both sides of the hydraulic cylinder and are connected to the two side plates, so as to conveniently drive the side plates on both sides of the heat preservation sleeve body to extend or fold up at the same time; heat preservation layers are provided inside both the heat preservation sleeve body and the side plates, and the heat preservation layers can further heat-preserve the steel billets, extend the heat preservation time, and the whole is powered by an external power supply.

[0009] Furthermore, the rotating device is provided with a chute and a slider; the chute is opened on the surface of one end of the heat preservation sleeve body, above the hydraulic cylinder; the slider is fixedly installed on the extending end of the hydraulic cylinder; the first hinge rod is rotatably connected to the hydraulic cylinder through the slider; the chute and the slider match each other. The slider is slidably connected to the chute. When the hydraulic cylinder makes a telescopic movement, the telescopic displacement of the hydraulic cylinder is restricted within the range of the chute. At the same time, the first hinge rod is connected to the slider, and the first hinge rod is driven to move through the slider, thereby driving the second hinge rod at one end of the rotating arm to push the side plate to unfold.

[0010] Furthermore, there are two rotating devices, which are respectively installed at both ends of the heat preservation sleeve body and are connected to the side plates. The second hinge rods of the two rotating devices are respectively connected to both ends of the side plates. The side plates are pushed to unfold or close simultaneously through the second hinge rods, making the unfolding or closing of the side plates smoother. At the same time, it avoids the phenomenon that the device cannot be used due to the damage of the rotating device at any end of the heat preservation sleeve body.

[0011] Furthermore, the side plates are arranged in an L shape, and the two side plates match each other; the other end of the second hinge rod is rotatably connected to the corner of the side plate. By pulling the corner of the side plate through the second hinge rod, the two L-shaped side plates are closed into a "冂" shape to seal the heat preservation sleeve body and heat-preserve the steel billets.

[0012] Furthermore, the support plate is concavely arranged; the heat insulation board is detachably mounted on the support plate. The concavely arranged support plate facilitates the placement of the heat insulation board and facilitates the removal and installation of the heat insulation board on the support plate.

[0013] The working principle of this utility model is as follows:

[0014] When in use, the hydraulic cylinder is started to retract, driving the slider to move on the slide, and the slider drives the hinge rod 1 to rotate and extend outward, pushing the swing arm to rotate outward, thereby driving the hinge rod 2 at one end of the swing arm to push the side panel to expand, and after the side panel is expanded, the insulation cover body is opened, and the steel billet is hoisted onto the insulation board inside the insulation cover body. The hydraulic cylinder extends, driving the hinge rod 1 to rotate and retract, driving the swing arm to rotate inward, thereby driving the hinge rod 2 at one end of the swing arm to pull the side panel to retract, and the side panel is closed, sealing the insulation cover body, and insulating the steel billet through the insulation layer inside the insulation cover body and the side panel. When the insulation board is damaged, the side panel can be opened and the insulation board can be taken out from the pallet for replacement.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model drives the side panels on both sides of the insulation cover body to rotate through the hinge rod 1 of the rotating device, the hydraulic cylinder, the swing arm and the hinge rod 2, so as to facilitate the opening and closing of the insulation cover body. The steel billet is placed on the insulation plate of the support plate on the support column, and the steel billet is lifted away from the insulation cover to avoid excessive deformation of the insulation layer due to heat. The extension and retraction of the side panels are achieved through the cooperation of the hydraulic cylinder and the hinge rod, which facilitates the maintenance and replacement of the insulation plate inside the insulation cover body and extends the service life of the protective cover body.

[0017] 2. The slider of the utility model is connected to the output end of the hydraulic cylinder, and the slider is slidably connected to the slide groove, which can limit the telescopic displacement of the hydraulic cylinder within the range of the slide groove, thereby limiting the rotation angle of the swing arm and the hinge rod 2 through the hinge rod 1, limiting the opening angle of the side panel, and avoiding excessive opening that causes the internal temperature to dissipate faster and reduce the insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a front view structural diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the main structure of the thermal insulation cover of the present utility model.

[0021] In the figure: 1. Insulation sleeve body; 2. Slide groove; 3. Slider; 4. Hinge rod 1; 5. Hydraulic cylinder; 6. Swing arm; 7. Hinge rod 2; 8. Side panel; 9. Insulation layer; 10. Heat insulation board; 11. Support plate; 12. Support column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following is a further detailed description of the insulation cover for hot-rolled steel billets of the present invention in conjunction with the accompanying drawings: Example 1

[0025] A heat preservation cover for hot-rolled steel billets, comprising a heat preservation cover body 1, side plates 8, a rotating device, a heat insulation board 10, a support plate 11 and a support column 12; the side plates 8 are provided with two, respectively connected to the heat preservation cover body 1 for rotation; the support columns 12 are provided with a plurality of columns, which are evenly distributed on the inner bottom side of the heat preservation cover 1; the bottom end of the support plate 11 is connected to the support column 12, and the top end is connected to the heat insulation board 10; the rotating device comprises a hinge rod 4, a hydraulic cylinder 5, a swing arm 6 and a hinge rod 7; the lower end of the hydraulic cylinder 5 is fixed to one end of the heat preservation cover body 1 Fixed connection; one end of the hinge rod 4 is rotatably connected to the protruding end of the hydraulic cylinder 5, and the other end is rotatably connected to the middle part of the swing arm 6; one end of the swing arm 6 is rotatably connected to the lower side of one end of the insulation cover body 1, and the other end is rotatably connected to one end of the hinge rod 2 7; the other end of the hinge rod 2 7 is rotatably connected to the side plate 8; the hinge rod 1 4, swing arm 6 and hinge rod 2 7 are each provided with two, which are symmetrically installed on both sides of the hydraulic cylinder 5 and connected to the two side plates 8; the insulation cover body 1 and the side plates 8 are both provided with an insulation layer 9.

[0026] The working principle of this embodiment is as follows:

[0027] When in use, the hydraulic cylinder 5 is started to retract, driving the hinge rod 14 to rotate and extend outward, pushing the swing arm 6 to rotate outward, thereby driving the hinge rod 27 at one end of the swing arm 6 to push the side panel 8 to unfold, unfold the side panel 8, open the insulation cover body 1, and hoist the steel billet onto the insulation board 10 inside the insulation cover body 1. The hydraulic cylinder 5 extends, driving the hinge rod 14 to rotate and retract, driving the swing arm 6 to rotate inward, thereby driving the hinge rod 27 at one end of the swing arm 6 to pull the side panel 8 to retract, closing the side panel 8 and sealing the insulation cover body 1. The steel billet is insulated by the insulation layer 9 inside the insulation cover body 1 and the side panel 8. When the insulation board 10 is damaged, the side panel 8 can be opened and the insulation board 10 can be taken out from the pallet for replacement. Example 2

[0028] The difference from Example 1 is that the rotating device is provided with a slide groove 2 and a slider 3; the slide groove 2 is opened on the surface of the insulation cover body 1; the slider 3 is fixedly installed on the protruding end of the hydraulic cylinder 5; the hinge rod 1 4 is rotatably connected to the hydraulic cylinder 5 through the slider 3; the slide groove 2 and the slider 3 match each other; there are two rotating devices, which are respectively installed at the two ends of the insulation cover body 1 and connected to the side panel 8; the side panel 8 is set in an "L" shape, and the two side panels 8 match each other; the other end of the hinge rod 2 7 is rotatably connected to the corner of the side panel 8; the support plate 11 is concave; the insulation board 10 is detachably mounted on the support plate 11.

[0029] When the cam 2 is in the closed position, the cam 2 is in the closed position, and the cam 2 is in the closed position, so that the cam 2 is in the closed position, and the cam 2 is in the closed position, so that the cam 2 is in the closed position, and the cam 2 is in the closed position, so that the cam 2 is in the closed position, and the cam 2 is in the closed position, so that the cam 2 is in the closed position, and the cam 2 is in the closed position, so that the cam 2 is in the closed position, and the cam 2 is in the closed position, so that the cam 2 is in the closed position, and the cam 2 is in the closed position, so that the cam 2 is in the closed position, and the cam 2 is in the closed position, so that the cam 2 is in the closed position, and the cam 2 is in the closed position, so that the cam 2 is in the closed position,

[0030] The working principle of this embodiment is the same as that of embodiment 1.

[0031] The working principle of this embodiment is the same as that of embodiment 3.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat preservation cover for hot rolled steel billets, characterized in that: The heat-insulating sleeve comprises a heat-insulating sleeve body (1), side panels (8), a rotating device, a heat-insulating plate (10), a supporting plate (11) and a supporting column (12); the side panels (8) are provided with two, which are respectively connected to the heat-insulating sleeve body (1) in a rotational manner; the supporting columns (12) are provided with a plurality of columns, which are evenly distributed on the inner bottom side of the heat-insulating sleeve body (1); the bottom end of the supporting plate (11) is connected to the supporting column (12), and the top end is connected to the heat-insulating plate (10); The rotating device comprises a hinge rod 1 (4), a hydraulic cylinder (5), a swing arm (6) and a hinge rod 2 (7); the lower end of the hydraulic cylinder (5) is fixedly connected to one end of the insulation cover body (1); one end of the hinge rod 1 (4) is rotationally connected to the extended end of the hydraulic cylinder (5), and the other end is rotationally connected to the middle part of the swing arm (6); one end of the swing arm (6) is rotationally connected to the lower side of one end of the insulation cover body (1), and the other end is rotationally connected to one end of the hinge rod 2 (7); the other end of the hinge rod 2 (7) is rotationally connected to the side plate (8); the hinge rod 1 (4), the swing arm (6) and the hinge rod 2 (7) are each provided with two, symmetrically mounted on both sides of the hydraulic cylinder (5) and connected to the two side plates (8); the insulation cover body (1) and the side plates (8) are both provided with an insulation layer (9) inside.

2. The insulation cover for hot-rolled steel billets according to claim 1, characterized in that: The rotating device is provided with a slide groove (2) and a slider (3); the slide groove (2) is provided on the surface of the thermal insulation sleeve body (1); the slider (3) is fixedly mounted on the protruding end of the hydraulic cylinder (5); the hinge rod 1 (4) is rotatably connected to the hydraulic cylinder (5) through the slider (3); the slide groove (2) and the slider (3) match each other.

3. The insulation cover for hot-rolled steel billets according to claim 2, characterized in that: The rotating devices are provided with two, which are respectively mounted on the two ends of the thermal insulation sleeve body (1) and connected to the side plates (8).

4. The insulation cover for hot-rolled steel billets according to claim 1, characterized in that: The side panels (8) are arranged in an "L" shape, and the two side panels (8) match each other; the other end of the hinge rod (7) is rotatably connected to the corner of the side panel (8).

5. The insulation cover for hot-rolled steel billets according to claim 1, characterized in that: The support plate (11) is arranged in a concave shape; the heat insulation plate (10) is detachably mounted on the support plate (11).

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