Transfer device

Abstract

The utility model discloses a transfer device, and relates to the technical field of transfer of an inner cover of an annular annealing furnace, the transfer device comprises at least two positioning assemblies, the positioning assemblies are fixed on an outer diameter positioning ring of the inner cover, and each positioning assembly comprises a base fixedly connected with the positioning ring, a positioning frame hinged to the base through a hinge shaft, and a plurality of positioning assemblies, the lifting belt is connected with the lifting hole in the positioning frame, and the positioning frame is connected with lifting equipment through the lifting belt for transferring; the locking unit is fixed to the side, close to the inner cover, of the positioning frame, and when the positioning frame is lifted upwards, the positioning frame and the inner cover extrude the locking unit to lock the positioning frame; wherein the upper end of the positioning frame, the hinge shaft and the lifting hole are sequentially far away from the inner cover, so that the positioning frame rotates around the hinge shaft in the process that the lifting belt lifts the positioning frame through the lifting hole, and the upper end of the positioning frame abuts against the outer wall of the inner cover.

Description

Technical Field

[0001] The present application belongs to the technical field of inner cover transportation of annular annealing furnaces, and specifically relates to a transportation device. Background Art

[0002] The inner cover of the annular annealing furnace is a proprietary device used to protect the steel coils in the cold-rolled silicon steel annular furnace and isolate them from the outside air during operation. The device is welded with a head and a cylinder segment, with an opening at the bottom and lifting lugs welded at the cylinder segment.

[0003] The inner cover product consists of a welded head, barrel, and lifting lugs. With a large diameter of 2200mm, all welded together using heat-resistant stainless steel, the product is heavy. Lifting during production and operation relies entirely on three sets of lifting lugs. This product is used within a silicon steel annealing furnace production line, where it is subjected to temperatures exceeding 1200°C for extended periods. The steel base metal in various locations has experienced some burn damage. Because the product is filled with a protective gas, the barrel and head are only exposed to air on one side, resulting in slower corrosion rates under the same temperature conditions. The lifting lugs, however, are exposed to the outside of the product and fully exposed to the hot air, leading to faster oxidation corrosion. This difference in corrosion rates results in a significantly shorter lifespan for the lifting lugs than the entire product. To maximize overall performance, damaged lifting lugs are typically replaced once during the product's lifespan. However, in some cases, lifting lug failure or repair of the inner cover may require lifting. Currently, this is achieved by using a robotic arm lifting device that activates three arm joints. This equipment is expensive and energy-intensive, and as a pneumatic device, it has a certain failure rate. Failure will seriously delay the production line's production rhythm. Summary of the Invention

[0004] The purpose of the present application is to provide a transfer device, which aims to at least to some extent solve the technical problem of being unable to transfer an annular annealing furnace when the annular annealing furnace has no lifting lugs or the lifting lugs are damaged.

[0005] To solve the above technical problems, this application adopts the following technical solutions:

[0006] The first aspect of an embodiment of the present application provides a transfer device for transferring the inner cover of an annular annealing furnace, the transfer device comprising at least two positioning components, the positioning component being fixed to the outer diameter positioning ring of the inner cover, the positioning component comprising: a base fixedly connected to the positioning ring; a positioning frame hinged to the base via a hinge shaft; a sling connected to a lifting hole on the positioning frame, the positioning frame being connected to a lifting equipment via the sling for transfer; a locking unit fixed to a side of the positioning frame close to the inner cover, when the positioning frame is lifted upward, the positioning frame and the inner cover squeeze the locking unit to lock the positioning frame; wherein the upper end of the positioning frame, the hinge shaft and the lifting hole are successively away from the inner cover, so that in the process of the sling lifting the positioning frame through the lifting hole, the positioning frame rotates around the hinge shaft, and the upper end of the positioning frame abuts against the outer wall of the inner cover.

[0007] In some embodiments, three positioning assemblies are provided, and the three positioning assemblies are divided into an equilateral triangle around the circumference of the positioning ring.

[0008] In some embodiments, the positioning frame includes: a first rod body, the lower end of which is hinged to the base, the upper end of the first rod body abuts against the outer wall of the inner cover, and the angle between the first rod body and the outer wall of the inner cover is greater than 0°; a second rod body, connected to the first rod body, and a hanging hole is provided at the end of the second rod body away from the sling.

[0009] In some embodiments, the first rod and the second rod are arranged vertically.

[0010] In some embodiments, the locking unit includes: a fixing plate welded to the side of the positioning frame above the inner cover; a locking pad fixed to the side of the fixing plate close to the inner cover. When the positioning frame is lifted upward, the positioning frame and the inner cover squeeze the locking pad to lock the positioning frame.

[0011] In some embodiments, the locking pad is a rubber pad.

[0012] In some embodiments, the inner cover is provided with a lifting lug, the number of the lifting lugs is the same as the number of the positioning components and corresponds one to one, and the bottom surface of the lifting lug abuts against and limits the upper end of the corresponding positioning frame.

[0013] In some embodiments, the positioning frame is made of high-temperature alloy steel.

[0014] In some embodiments, the lifting equipment is an overhead crane.

[0015] In some embodiments, one end of each of the slings is connected to the base, and the other end of each of the slings is connected to the boom of the overhead travelling crane after being connected directly above the inner cover.

[0016] It can be seen from the above technical solution that this application has at least the following advantages and positive effects:

[0017] A transfer device in the present application is lifted by setting a positioning component on the inner cover. The device has a simple structure, is easy to install and disassemble, has a simple and convenient lifting operation, is highly safe during the process, does not involve energy consumption, and plays a role in lifting and transporting cylindrical equipment with a large diameter where it is inconvenient to set lifting ears. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of a transfer device in an embodiment of the present application;

[0020] Figure 2 is a cross-sectional view of a transfer device in an embodiment of the present application;

[0021] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0022] The description of the accompanying drawings is as follows: 100, positioning assembly; 110, base; 120, positioning frame; 121, first rod; 122, second rod; 130, sling; 140, hinge shaft; 150, locking pad; 160, fixing plate; 200, inner cover; 210, lifting ear; 220, positioning ring. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to understand the present application more clearly, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0024] Figure 1 This is a schematic diagram of the structure of a transfer device in an embodiment of the present application. Figure 1As shown, the device is used to transport the inner cover 200 of the annular annealing furnace. The transport device includes at least two positioning assemblies 100, and the positioning assemblies 100 are fixed to the outer diameter positioning ring 220 of the inner cover 200. Specifically, there are three positioning assemblies 100, and the three positioning assemblies 100 are divided into a right triangle around the circumference of the positioning ring. The inner cover 200 is provided with damaged lifting ears 210. The number of the lifting ears 210 is the same as the number of the positioning assemblies 100, and they correspond one to one. The bottom surface of the lifting ear 210 abuts and limits the upper end of the corresponding positioning frame 120. By arranging the positioning assembly 100 on the inner cover 200 for lifting, the device has a simple structure, is easy to install and disassemble, and the lifting operation is simple and convenient. The process is highly safe and does not involve energy consumption. It plays a role in lifting and transportation for cylindrical equipment with a large diameter that is not convenient to set the lifting ear 210.

[0025] In other embodiments, if there is no lifting ear 210 on the inner cover 200 , transportation can also be achieved by abutting the positioning frame 120 against the outer wall of the inner cover 200 .

[0026] Figure 2 is a cross-sectional view of a transfer device in an embodiment of the present application; Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0027] like Figure 2 and Figure 3 As shown, the positioning assembly 100 includes: a base 110, which is fixedly connected to the positioning ring; a positioning frame 120, which is hinged to the base 110 through a hinge shaft 140; a sling 130, which is connected to the lifting hole on the positioning frame 120, and the positioning frame 120 is connected to the lifting equipment through the sling 130 for transportation; a locking unit, which is fixed to the side of the positioning frame 120 close to the inner cover 200, and when the positioning frame 120 is lifted upward, the positioning frame 120 and the inner cover 200 squeeze the locking unit to lock the positioning frame 120; wherein, the upper end of the positioning frame 120, the hinge shaft 140 and the lifting hole are successively away from the inner cover 200, so that when the sling 130 lifts the positioning frame 120 through the lifting hole, the positioning frame 120 rotates around the hinge shaft 140, and the upper end of the positioning frame 120 abuts against the outer wall of the inner cover 200.

[0028] In some embodiments, the positioning frame 120 includes: a first rod 121, the lower end of which is hinged to the base 110, the upper end of the first rod 121 abutting the outer wall of the inner cover 200, and the angle between the first rod 121 and the outer wall of the inner cover 200 being greater than 0°; a second rod 122 connected to the first rod, and a hanging hole is provided at the end of the second rod 122 away from the sling 130. The first rod 121 and the second rod 122 are arranged vertically and integrally formed. The lower end of the first rod 121 is provided with a connecting hole extending therethrough. The mounting frame is detachably hinged to the base 110 via a hinge shaft 140 passing through the connecting hole. Specifically, the hinge shaft 140 is a shaft pin.

[0029] In some embodiments, the locking unit includes: a fixing plate 160, welded to the side of the positioning frame 120 above the inner cover 200; a locking pad 150, fixed to the side of the fixing plate 160 close to the inner cover 200. When the positioning frame 120 is lifted upward, the positioning frame 120 and the inner cover 200 squeeze the locking pad 150 to lock the positioning frame 120.

[0030] In some embodiments, the locking pad 150 is a rubber pad. Specifically, the rubber pad is made of wear-resistant material.

[0031] In some embodiments, the positioning frame 120 is made of high-temperature alloy steel and is strong and durable.

[0032] In some embodiments, the lifting equipment is an overhead crane.

[0033] In some embodiments, one end of each of the slings 130 is connected to the base 110 , and the other end of each of the slings 130 is connected to the boom of the overhead crane directly above the inner cover 200 .

[0034] It can be seen from the above technical solution that this application has at least the following advantages and positive effects:

[0035] A transfer device in the present application is lifted by setting a positioning component on the inner cover. The device has a simple structure, is easy to install and disassemble, has a simple and convenient lifting operation, is highly safe during the process, does not involve energy consumption, and plays a role in lifting and transporting cylindrical equipment with a large diameter where it is inconvenient to set lifting ears.

[0036] Unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In this application, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0039] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0040] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A transfer device for transferring the inner cover of an annular annealing furnace, characterized in that: The transfer device includes at least two positioning components, which are fixed to the outer diameter positioning ring of the inner cover, and the positioning components include: Base, fixedly connected to the positioning ring: A positioning frame, hinged to the base via a hinge shaft; A lifting belt is connected to the lifting hole on the positioning frame, and the positioning frame is connected to the lifting equipment through the lifting belt for transportation; A locking unit is fixed to a side of the positioning frame close to the inner cover, and when the positioning frame is hoisted upward, the positioning frame and the inner cover squeeze the locking unit to lock the positioning frame; The upper end of the positioning frame, the hinge shaft and the lifting hole are successively away from the inner cover, so that when the sling lifts the positioning frame through the lifting hole, the positioning frame rotates around the hinge shaft and the upper end of the positioning frame abuts against the outer wall of the inner cover.

2. The transfer device according to claim 1, characterized in that There are three positioning assemblies, and the three positioning assemblies are divided into an equilateral triangle around the circumference of the positioning ring.

3. The transfer device according to claim 1, characterized in that The positioning frame includes: a first rod, the lower end of which is hinged to the base, the upper end of which is in contact with the outer wall of the inner cover, and the angle between the first rod and the outer wall of the inner cover is greater than 0°; The second rod is connected to the first rod, and a hanging hole is provided at one end of the second rod away from the sling.

4. The transfer device according to claim 3, characterized in that The first rod body and the second rod body are arranged vertically.

5. The transfer device according to any one of claims 1 to 4, characterized in that: The locking unit comprises: A fixing plate, welded to one side of the upper portion of the positioning frame and close to the inner cover; A locking pad is fixed to a side of the fixing plate close to the inner cover. When the positioning frame is lifted upward, the positioning frame and the inner cover squeeze the locking pad to lock the positioning frame.

6. The transfer device according to claim 5, characterized in that: The locking pad is a rubber pad.

7. The transfer device according to claim 1, characterized in that The inner cover is provided with lifting ears, the number of the lifting ears is the same as the number of the positioning components and corresponds one to one, and the bottom surface of the lifting ear abuts against and limits the upper end of the corresponding positioning frame.

8. The transfer device according to claim 1, characterized in that The positioning frame is made of high-temperature alloy steel.

9. The transfer device according to claim 1, characterized in that: The lifting equipment is an overhead crane.

10. The transfer device according to claim 9, characterized in that: One end of each of the slings is connected to the base, and the other end of each of the slings is connected to the boom of the overhead travelling vehicle after being connected just above the inner cover.

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