On-line changing hoisting device for float glass annealing furnace roller

Abstract

The application provides a hoisting device for online replacement of a float glass annealing furnace roller, comprising: a first bearing assembly, the first bearing assembly comprising a first shaft sleeve, a first fixing member, a first bearing and a first hoisting shell, the first bearing being arranged between the first shaft sleeve and the first hoisting shell; a second bearing assembly, the second bearing assembly comprising a second shaft sleeve, a second fixing member, a second bearing and a second hoisting shell, the second bearing being arranged between the second shaft sleeve and the second hoisting shell; the inner diameter of the first shaft sleeve and the inner diameter of the second shaft sleeve are both greater than the outer diameter of the annealing furnace roller, the first fixing member is connected to the first shaft sleeve and the annealing furnace roller, and the second fixing member is connected to the second shaft sleeve and the annealing furnace roller. The technical scheme of the application effectively solves the problems of low online replacement efficiency and great safety hazards of the existing annealing furnace roller in the prior art.

Description

Technical Field

[0001] This application relates to the technical field of online replacement of annealing furnace rollers, and more particularly to a hoisting device for online replacement of float glass annealing furnace rollers. Background Technology

[0002] In continuous float glass production lines, heat-resistant steel rollers are densely arranged at the top and bottom of annealing furnace zones I-IV to support and transport glass belts at 1100–180°C. After long-term operation, annular nodules with a diameter of 10-30 mm often appear on the roller surface due to the adhesion of sulfur, sodium, tin oxides, and flaking debris. This leads to indentations, stress spots, and even cracking on the lower surface of the glass, requiring periodic online grinding or offline replacement. A single annealing roller weighs approximately 600 kg, has a span of 4.3 m, and its end meshes with the main drive shaft outside the furnace via a φ180 mm herringbone gear. The bearing housing is fixed to a cantilevered gantry frame.

[0003] Some existing replacement methods involve: first, stopping the kiln to cool it down → manually removing the gear cover → two people simultaneously using pry bars to shift the gear backlash → then using two 2-ton hand-operated hoists to hook the roller necks and alternately lower them, allowing the rollers to slowly roll down the inclined rails onto a simple flatbed trolley. Because the platforms on both sides of the annealing kiln are less than 1 meter wide, and densely packed with thermocouples, air ducts, and cable trays above, the hoisting space is limited, and the hoist chains often become skewed. Furthermore, the gear meshing backlash is only 0.25 mm, making it easy for the gear teeth to chip when knocked off, and even causing the roller neck to bend. During the lowering process, if the roller's center of gravity shifts, it will accelerate down the inclined rails, and the 600 kg inertial impact force is enough to overturn the trolley. There have been several accidents where falling rollers have broken cooling ducts and broken operators' arms. The entire process takes an average of 90 minutes, requires six workers to operate, is labor-intensive, and involves long kiln shutdown times, directly impacting glass production and yield. For example, application number 201020519085.1, entitled "Online Replacement Device for Float Glass Annealing Furnace Track". Utility Model Content

[0004] One of the technical problems this application aims to solve is that the online replacement efficiency of annealing furnace rollers in the prior art is low and poses significant safety hazards.

[0005] To address the aforementioned technical problems, this application provides an online replacement and hoisting device for float glass annealing furnace rollers, comprising: a first bearing assembly, which includes a first bushing, a first fixing member, a first bearing, and a first hoisting housing, wherein the first bearing is disposed between the first bushing and the first hoisting housing; and a second bearing assembly, which includes a second bushing, a second fixing member, a second bearing, and a second hoisting housing, wherein the second bearing is disposed between the second bushing and the second hoisting housing; the inner diameter of the first bushing and the inner diameter of the second bushing are both larger than the outer diameter of the annealing furnace roller; the first fixing member is connected to the first bushing and the annealing furnace roller; and the second fixing member is connected to the second bushing and the annealing furnace roller.

[0006] Furthermore, the first bushing includes a first bushing body and a first base plate located at the end of the first bushing body. The first bushing body and the first base plate are integrally formed. The first base plate has a first threaded hole in the middle. The first threaded hole is coaxially arranged with the end machining hole of the annealing furnace roller. The first fastener is a bolt, which cooperates with the first threaded hole and the end machining hole.

[0007] Furthermore, the first bushing body has a first set screw hole that penetrates the first bushing body, and the first bearing assembly includes a first set screw that mates with the first set screw hole.

[0008] Furthermore, the first hoisting housing includes a first hoisting bearing cylinder and a first hoisting frame disposed on the outer wall of the first hoisting bearing cylinder, wherein the outer wall of the first bearing is interference-fitted with the inner wall of the first hoisting bearing cylinder.

[0009] Furthermore, the first hoisting bearing cylinder includes a first hoisting bearing cylinder body and a first hoisting bearing cylinder end cap, the first bushing has a first shoulder, the inner ring of the first bearing abuts against the first shoulder, the first bearing is interference-fitted into the first hoisting bearing cylinder body, and the first hoisting bearing cylinder end cap is disposed on the side of the first hoisting bearing cylinder body away from the first shoulder.

[0010] Furthermore, the hoisting device also includes: a third bearing assembly, in which the annealing furnace roller passes through, and the third bearing assembly is located between the first bearing assembly and the second bearing assembly; and a fourth bearing assembly, in which the annealing furnace roller passes through, and the fourth bearing assembly is located between the third bearing assembly and the second bearing assembly.

[0011] Furthermore, the third bearing assembly includes a third bearing and a first lifting adjustment housing, wherein the housing of the third bearing is interference-fitted within the first lifting adjustment housing.

[0012] Furthermore, the first hoisting adjustment housing includes a first hoisting adjustment housing cylinder, a first hoisting adjustment housing connecting frame, a first connecting plate, and a plurality of first adjusting bolts. The third bearing is disposed inside the first hoisting adjustment housing cylinder. The first hoisting adjustment housing connecting frame is connected to the outer wall of the first hoisting adjustment housing cylinder. The side of the first hoisting adjustment housing connecting frame away from the first hoisting adjustment housing cylinder has a plurality of adjusting threaded holes adapted to the plurality of first adjusting bolts. The first connecting plate has through holes corresponding to the plurality of adjusting threaded holes.

[0013] Furthermore, the first hoisting adjustment housing also includes a first force-applying bolt, and the middle part of the first connecting plate has a first force-applying threaded hole, with the first force-applying bolt passing through the first force-applying threaded hole.

[0014] Furthermore, the fourth bearing assembly has the same structure as the third bearing assembly.

[0015] By applying the technical solution of this application, when replacing the annealing furnace roller online, the first bearing assembly and the second bearing assembly, lifted by a gantry crane, are respectively positioned at both ends of the annealing furnace roller. The support frame of the annealing furnace roller is slowly removed, and the rolling annealing furnace roller engages with the first and second bearing assemblies, while the gears of the annealing furnace roller disengage. Since both the first and second bearing assemblies are equipped with bearings, the first and second lifting housings will not rotate with the rotation of the annealing furnace roller. After the annealing furnace roller stops rotating, it is fixed to the first and second bushings by the first and second fixing components, and the gantry crane can slowly place the annealing furnace roller into the trolley. The operation can be completed in half an hour using this lifting device, and the operator does not need to perform heavy physical labor such as prying, making the operation safer. The technical solution of this application effectively solves the problems of low efficiency and high safety hazards in the online replacement of annealing furnace rollers in the prior art. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This invention provides a schematic diagram of the overall structure of an online replacement and hoisting device for float glass annealing furnace rollers according to an embodiment of this application. Figure 2 It shows Figure 1 A partial structural diagram of the hoisting device.

[0018] Explanation of reference numerals in the attached figures: 10. First bearing assembly; 11. First bushing; 12. First fastener; 13. First bearing; 14. First lifting housing; 15. First set screw; 20. Second bearing assembly; 21. Second bushing; 22. Second fastener; 23. Second bearing; 24. Second lifting housing; 30. Third bearing assembly; 31. Third bearing; 32. First lifting adjustment housing; 321. First lifting adjustment housing cylinder; 322. First lifting adjustment housing connecting frame; 323. First connecting plate; 324. First adjusting bolt; 325. First force-applying bolt; 40. Fourth bearing assembly; 100. Annealing furnace roller; 200. Gear. Detailed Implementation

[0019] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0020] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0021] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0023] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0024] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0026] like Figure 1 and Figure 2 As shown, the technical solution of Embodiment 1 provides an online replacement and hoisting device for float glass annealing furnace rollers, including: a first bearing assembly 10 and a second bearing assembly 20. The first bearing assembly 10 includes a first bushing 11, a first fixing member 12, a first bearing 13, and a first hoisting housing 14, with the first bearing 13 disposed between the first bushing 11 and the first hoisting housing 14. The second bearing assembly 20 includes a second bushing 21, a second fixing member 22, a second bearing 23, and a second hoisting housing 24, with the second bearing 23 disposed between the second bushing 21 and the second hoisting housing 24. The inner diameter of both the first bushing 11 and the second bushing 21 is larger than the outer diameter of the annealing furnace roller. The first fixing member 12 is connected to the first bushing 11 and the annealing furnace roller, and the second fixing member 22 is connected to the second bushing 21 and the annealing furnace roller.

[0027] Applying the technical solution of this application, when replacing the annealing furnace roller online, the first bearing assembly 10 and the second bearing assembly 20, lifted by a gantry crane, are respectively positioned at both ends of the annealing furnace roller 100. The support frame of the annealing furnace roller 100 is slowly removed, and the rolling annealing furnace roller 100 engages with the first bearing assembly 10 and the second bearing assembly 20, while the gear 200 of the annealing furnace roller 100 disengages. Since both the first bearing assembly 10 and the second bearing assembly 20 are equipped with bearings, the first lifting housing 14 and the second lifting housing 24 will not rotate with the rotation of the annealing furnace roller 100. After the annealing furnace roller 100 stops rotating, it is fixed to the first bushing 11 and the second bushing 21 by the first fixing member 12 and the second fixing member 22. The gantry crane can then slowly place the annealing furnace roller 100 into the trolley. The operation can be completed in half an hour using this lifting device, and the operator does not need to perform heavy physical labor such as prying, making the operation safer. The technical solution of this embodiment effectively solves the problems of low online replacement efficiency and significant safety hazards of annealing furnace rollers in the prior art.

[0028] like Figure 1 and Figure 2 As shown, in this embodiment, the first bushing 11 includes a first bushing body and a first base plate located at the end of the first bushing body. The first bushing body and the first base plate are integrally formed. The first base plate has a first threaded hole in the middle, which is coaxially arranged with the end machining hole of the annealing furnace roller. The first fixing member 12 is a bolt, which cooperates with the first threaded hole and the end machining hole. The first fixing member 12 can prevent the annealing furnace roller 100 from moving axially or radially, which is beneficial to protecting the safety of the equipment and operators. The first fixing member 12, which is a bolt cooperating with the first threaded hole and the machining hole, has a compact structure, low processing cost, and convenient operation.

[0029] like Figure 1 As shown, in the technical solution of this embodiment, the second bushing 21 includes a second bushing body and a second base plate located at the end of the second bushing body. The second bushing body and the second base plate are integrally formed. The second base plate has a second threaded hole in the middle, and the second fixing member 22 is a bolt. The second bearing assembly 20 has the same structure as the first bearing assembly 10. When in use, it is symmetrically arranged at both ends of the annealing furnace roller 100, so that the force on the annealing furnace roller 100 is balanced.

[0030] like Figure 1 and Figure 2As shown, in this embodiment, the first bushing body has a first set screw hole penetrating through the first bushing body, and the first bearing assembly 10 includes a first set screw 15, which mates with the first set screw hole. The first set screw 15 can provide circumferential positioning for the annealing furnace roller 100. It should be noted that the second bushing body has a second set screw hole penetrating through the second bushing body, and the second set screw passes through the second set screw hole to provide circumferential positioning for the annealing furnace roller 100. The above structure is compact, has low processing cost, and is easy to operate.

[0031] like Figure 1 As shown, in this embodiment, the first lifting housing 14 includes a first lifting bearing cylinder and a first lifting frame disposed on the outer wall of the first lifting bearing cylinder. The outer wall of the first bearing 13 is interference-fitted with the inner wall of the first lifting bearing cylinder. The first lifting frame includes a plate and lifting holes disposed on the plate. The lifting straps pass through the lifting holes for lifting operations, thus avoiding the problem of the annealing furnace roller 100 coming off the lifting straps by directly binding the first lifting bearing cylinder. The structure of the second lifting housing 24 is similar to that of the first lifting housing 14, and the same method is used, so it will not be described again here.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, the first lifting bearing cylinder includes a first lifting bearing cylinder body and a first lifting bearing cylinder end cap. The first bushing 11 has a first shoulder, the inner ring of the first bearing 13 abuts against the first shoulder, and the first bearing 13 is interference-fitted into the first lifting bearing cylinder body. The first lifting bearing cylinder end cap covers the side of the first lifting bearing cylinder body away from the first shoulder. The axial movement of the first bearing 13 is limited by the shoulder and the end cap. The above structure is compact and relatively stable in use.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, the hoisting device further includes a third bearing assembly 30 and a fourth bearing assembly 40. The annealing furnace roller passes through the third bearing assembly 30, which is located between the first bearing assembly 10 and the second bearing assembly 20. The annealing furnace roller passes through the fourth bearing assembly 40, which is located between the third bearing assembly 30 and the second bearing assembly 20. The arrangement of the third bearing assembly 30 and the fourth bearing assembly 40 makes the hoisting operation of the annealing furnace roller 100 more stable. In use, the two ends of one sling are respectively suspended from the first bearing assembly 10 and the third bearing assembly 30, and the two ends of the other sling are respectively suspended from the second bearing assembly 20 and the fourth bearing assembly 40.

[0034] like Figure 1 and Figure 2As shown, in this embodiment, the third bearing assembly 30 includes a third bearing 31 and a first lifting adjustment housing 32. The outer shell of the third bearing 31 is interference-fitted into the first lifting adjustment housing 32. The third bearing 31 prevents the moving annealing furnace roller 100 from interfering with the first lifting adjustment housing 32. The interference fit of the outer shell of the third bearing 31 into the first lifting adjustment housing 32 prevents the third bearing 31 from detaching from the first lifting adjustment housing 32 during lifting operations. Furthermore, the first lifting adjustment housing 32 has an adjustment function, making the coordination between the lifting device and the annealing furnace roller 100 more convenient and faster. It should be noted that the fourth bearing assembly 40 includes a fourth bearing and a second lifting adjustment housing, which will not be described in detail here.

[0035] like Figure 1 and Figure 2 As shown, in this embodiment, the first hoisting adjustment housing 32 includes a first hoisting adjustment housing cylinder 321, a first hoisting adjustment housing connecting frame 322, a first connecting plate 323, and multiple first adjusting bolts 324. A third bearing 31 is disposed within the first hoisting adjustment housing cylinder 321. The first hoisting adjustment housing connecting frame 322 is connected to the outer wall of the first hoisting adjustment housing cylinder 321. The side of the first hoisting adjustment housing connecting frame 322 away from the first hoisting adjustment housing cylinder 321 has multiple adjusting threaded holes adapted to the multiple first adjusting bolts 324. The first connecting plate 323 has through holes corresponding to the multiple adjusting threaded holes. In use, coarse adjustment is performed by raising and lowering the gantry crane, followed by fine adjustment using the multiple first adjusting bolts 324. The structure of the multiple first adjusting bolts 324 makes the force on the annealing furnace roller 100 more balanced, and the above structure facilitates operation.

[0036] like Figure 1 and Figure 2 As shown in the technical solution of this embodiment, the first lifting adjustment housing 32 further includes a first force-applying bolt 325, and the first connecting plate 323 has a first force-applying threaded hole in the middle, with the first force-applying bolt 325 passing through the first force-applying threaded hole. The first force-applying bolt 325 makes it easy to balance the multiple first adjusting bolts 324, and the arrangement of the first force-applying bolt 325 also facilitates the connection of the lifting sling. It should be noted that there is a gap between the first connecting plate 323 and the first lifting adjustment housing connecting frame 322, which facilitates the connection of the lifting sling.

[0037] like Figure 1 As shown, in this embodiment, the fourth bearing assembly 40 has the same structure as the third bearing assembly 30. The fourth bearing assembly 40 also has the same structure as the third bearing 31, which facilitates fine-tuning of the fourth bearing assembly 40. In this embodiment, the first bearing assembly 10 and the second bearing assembly 20 have the same structure, and the third bearing assembly 30 and the fourth bearing assembly 40 have the same structure.

[0038] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0039] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A float glass annealing furnace roller online replacement and hoisting device, characterized in that, include: The first bearing assembly (10) includes a first bushing (11), a first fastener (12), a first bearing (13), and a first lifting housing (14). The first bearing (13) is disposed between the first bushing (11) and the first lifting housing (14). The second bearing assembly (20) includes a second bushing (21), a second fastener (22), a second bearing (23), and a second lifting housing (24). The second bearing (23) is disposed between the second bushing (21) and the second lifting housing (24). The inner diameter of the first bushing (11) and the inner diameter of the second bushing (21) are both larger than the outer diameter of the annealing furnace roller (100). The first fixing member (12) is connected to the first bushing (11) and the annealing furnace roller (100), and the second fixing member (22) is connected to the second bushing (21) and the annealing furnace roller (100).

2. The online replacement and hoisting device for float glass annealing furnace rollers according to claim 1, characterized in that, The first bushing (11) includes a first bushing body and a first base plate located at the end of the first bushing body. The first bushing body and the first base plate are integrally formed. The first base plate has a first threaded hole in the middle. The first threaded hole is coaxially arranged with the end machining hole of the annealing furnace roller (100). The first fastener (12) is a bolt. The bolt cooperates with the first threaded hole and the end machining hole.

3. The online replacement and hoisting device for float glass annealing furnace rollers according to claim 2, characterized in that, The first bushing body has a first set screw hole that penetrates the first bushing body, and the first bearing assembly (10) includes a first set screw (15) that engages with the first set screw hole.

4. The online replacement and hoisting device for float glass annealing furnace rollers according to claim 1, characterized in that, The first hoisting housing (14) includes a first hoisting bearing cylinder and a first hoisting frame disposed on the outer wall of the first hoisting bearing cylinder. The outer wall of the first bearing (13) is interference-fitted with the inner wall of the first hoisting bearing cylinder.

5. The online replacement and hoisting device for float glass annealing furnace rollers according to claim 4, characterized in that, The first hoisting bearing cylinder includes a first hoisting bearing cylinder body and a first hoisting bearing cylinder end cap. The first bushing (11) has a first shoulder. The inner ring of the first bearing (13) abuts against the first shoulder. The first bearing (13) is interference-fitted into the first hoisting bearing cylinder body. The first hoisting bearing cylinder end cap is located on the side of the first hoisting bearing cylinder body away from the first shoulder.

6. The online replacement and hoisting device for float glass annealing furnace rollers according to any one of claims 1 to 5, characterized in that, The hoisting device also includes: The third bearing assembly (30) is provided with the annealing furnace roller (100) passing through it, and the third bearing assembly (30) is located between the first bearing assembly (10) and the second bearing assembly (20). The fourth bearing assembly, wherein the annealing furnace roller passes through the fourth bearing assembly, and the fourth bearing assembly is located between the third bearing assembly (30) and the second bearing assembly (20).

7. The online replacement and hoisting device for float glass annealing furnace rollers according to claim 6, characterized in that, The third bearing assembly (30) includes a third bearing (31) and a first hoisting adjustment housing (32), wherein the outer shell of the third bearing (31) is interference-fitted within the first hoisting adjustment housing (32).

8. The online replacement and hoisting device for float glass annealing furnace rollers according to claim 7, characterized in that, The first hoisting adjustment housing (32) includes a first hoisting adjustment housing cylinder (321), a first hoisting adjustment housing connecting frame (322), a first connecting plate (323), and a plurality of first adjusting bolts (324). The third bearing (31) is disposed inside the first hoisting adjustment housing cylinder (321). The first hoisting adjustment housing connecting frame (322) is connected to the outer wall of the first hoisting adjustment housing cylinder (321). The side of the first hoisting adjustment housing connecting frame (322) away from the first hoisting adjustment housing cylinder (321) has a plurality of adjusting threaded holes adapted to the plurality of first adjusting bolts (324). The first connecting plate (323) has through holes corresponding to the plurality of adjusting threaded holes.

9. The online replacement and hoisting device for float glass annealing furnace rollers according to claim 8, characterized in that, The first hoisting adjustment housing (32) also includes a first force-applying bolt (325), and the first connecting plate (323) has a first force-applying threaded hole in the middle, and the first force-applying bolt (325) passes through the first force-applying threaded hole.

10. The online replacement and hoisting device for float glass annealing furnace rollers according to claim 6, characterized in that, The fourth bearing assembly (40) has the same structure as the third bearing assembly (30).

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