CN215668085U - Modularized vertical lower suspension device - Google Patents
Modularized vertical lower suspension device Download PDFInfo
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- CN215668085U CN215668085U CN202122427773.6U CN202122427773U CN215668085U CN 215668085 U CN215668085 U CN 215668085U CN 202122427773 U CN202122427773 U CN 202122427773U CN 215668085 U CN215668085 U CN 215668085U
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Abstract
The utility model provides a modularized vertical lower suspension device, which relates to the technical field of converter steelmaking and is arranged between a converter shell and a backing ring, wherein the modularized vertical lower suspension device comprises a backing ring vertical lifting lug, a converter shell vertical lifting lug and a connecting rod, and two ends of the connecting rod are respectively connected with the backing ring vertical lifting lug and the converter shell vertical lifting lug in a rotating way; the supporting ring vertical lifting lug is provided with a supporting ring welding end face, the supporting ring welding end face can be matched with the outer wall of the supporting ring to form a supporting ring welding groove, and the supporting ring welding groove is gradually narrowed from the outer side to the inner side of the modular vertical lower suspension device; the furnace shell vertical lifting lug is provided with a furnace shell welding end face, the furnace shell welding end face can be matched with the outer wall of the furnace shell to form a furnace shell welding groove, and the furnace shell welding groove is gradually narrowed from the outer side to the inner side of the modular vertical lower suspension device; the device can be installed in place at one time when in use, the installation efficiency and the installation precision are improved, and only single-side welding is needed during installation, so that the installation efficiency is greatly improved.
Description
Technical Field
The utility model relates to the technical field of converter steelmaking, in particular to a modular vertical lower suspension device.
Background
The converter is a common device in the field of ferrous metallurgy, and a furnace shell needs to be matched with a backing ring in the using process. In actual production operation, the furnace shell and the trunnion ring can generate expansion deformation under the action of heat load, and further the displacement of the furnace shell and the trunnion ring in the radial direction and the axial direction is caused, if the relative displacement is limited, additional stress can be directly generated on the furnace shell and the trunnion ring, and the damage can be caused in severe cases. In order to avoid the above situation, a connecting device is generally used between the furnace shell and the backing ring, and the furnace shell and the backing ring can move relatively through the connecting device so as to reduce the influence of thermal expansion deformation. In the prior art, the connecting device has a problem in the installation stage, and when the lifting lugs are welded, double-sided welding is adopted, enough welding space needs to be reserved on two sides of the lifting lugs, so that the connecting rod, the pin shaft and related parts need to be detached to make up the welding space before the lifting lugs are welded, and the connecting rod, the pin shaft and the related auxiliary parts are reset and installed after the welding is finished. The reset process has higher requirements on the installation accuracy of the pin shaft, but because the weight of components such as the connecting rod and the pin shaft is larger, the installation accuracy of the pin shaft is difficult to effectively control in the reset process, so that the reset connecting device becomes a work with higher difficulty, longer time and higher cost, the installation process wastes time and labor, and the potential safety hazard is easy to appear in the installation process because the weight of the components such as the connecting rod is larger.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the technical problem to be solved by the embodiment of the utility model is to provide the modular vertical lower suspension device which can be integrally installed, so that the assembly process is more efficient and accurate, disassembly and reset are not needed during use, the installation difficulty is reduced, and potential safety hazards are prevented.
The utility model provides a modularized vertical lower suspension device, which is arranged between a furnace shell and a backing ring, and comprises a backing ring vertical lifting lug, a furnace shell vertical lifting lug and a connecting rod, wherein two ends of the connecting rod are respectively connected with the backing ring vertical lifting lug and the furnace shell vertical lifting lug in a rotating way;
the supporting ring vertical lifting lug is provided with a supporting ring welding end face, the supporting ring welding end face can be matched with the outer wall of the supporting ring to form a supporting ring welding groove, and the supporting ring welding groove is gradually narrowed from the outer side of the modular vertical lower suspension device to the inner side of the modular vertical lower suspension device;
the furnace shell welding end face can be matched with the outer wall of the furnace shell to form a furnace shell welding groove, and the furnace shell welding groove is gradually narrowed from the outer side of the modular vertical lower suspension device to the inner side of the modular vertical lower suspension device.
In a preferred embodiment of the present invention, one end of the trunnion ring welding groove, which is disposed on the inner side of the modular vertical lower suspension device, is a trunnion ring groove narrow end, and one end of the furnace shell welding groove, which is disposed on the inner side of the modular vertical lower suspension device, is a furnace shell groove narrow end;
the backing ring vertical lifting lug and the furnace shell vertical lifting lug are both connected with a back plate, the backing plate can block the backing ring groove narrow end and the furnace shell groove narrow end, and the part of the back plate extending out of the backing ring vertical lifting lug and the furnace shell vertical lifting lug is in a first length setting.
In a preferred embodiment of the present invention, the first length is 6mm to 12 mm.
In a preferred embodiment of the present invention, the groove angle of the backing ring welding groove and the groove angle of the furnace shell welding groove are both 15 ° to 60 °.
In a preferred embodiment of the present invention, the trunnion ring vertical lifting lug comprises two trunnion ring support plates arranged in parallel and a first trunnion shaft rotatably installed between the two trunnion ring support plates, the two trunnion ring support plates are both provided with the trunnion ring welding end faces, and the narrow ends of the two trunnion ring grooves are respectively arranged on two sides of the area sandwiched by the two trunnion ring support plates;
the furnace shell vertical lifting lug comprises two furnace shell supporting plates arranged in parallel and a second trunnion rotatably arranged between the two furnace shell supporting plates, the two furnace shell supporting plates are respectively provided with a welding end face of the furnace shell, and the narrow ends of the two furnace shell bevels are respectively arranged at two sides of an area clamped by the two furnace shell supporting plates;
and two ends of the connecting rod are respectively hinged with the first trunnion and the second trunnion.
In a preferred embodiment of the present invention, each of the backing ring welding end surfaces includes a first backing ring welding end surface and a second backing ring welding end surface, the first backing ring welding end surface is connected to the second backing ring welding end surface through an angle adjusting section, the first backing ring welding end surface is used for being connected to the bottom surface of the backing ring, and the second backing ring welding end surface is used for being connected to the side surface of the backing ring.
In a preferred embodiment of the present invention, each of the furnace shell welding end surfaces includes a first furnace shell welding end surface and a second furnace shell welding end surface, the first furnace shell welding end surface and the second furnace shell welding end surface are disposed at two sides of the second trunnion at an interval, and both the first furnace shell welding end surface and the second furnace shell welding end surface are used for connecting with an outer wall of the furnace shell.
In a preferred embodiment of the present invention, two ends of the first trunnion are respectively mounted on the two trunnion ring support plates through trunnion joint bearings, and two ends of the second trunnion are respectively mounted on the two furnace shell support plates through trunnion joint bearings;
the both ends of connecting rod all are equipped with rotates mounting structure, it includes sleeve and suit to rotate mounting structure connecting rod joint bearing on the sleeve, connecting rod joint bearing connects on the connecting rod, is located the both ends of connecting rod the sleeve is the suit respectively in first gudgeon with on the second gudgeon.
In a preferred embodiment of the present invention, two sides of the connecting rod knuckle bearing are respectively fastened with a first transparent cover, and both the first transparent covers are connected to the connecting rod;
two sides of the trunnion joint bearing are respectively provided with a second through cover and an end cover in a buckling manner, the end covers are covered at one end of the corresponding first trunnion or one end of the corresponding second trunnion, and the second through cover and the end covers are connected to the corresponding trunnion ring support plate or the furnace shell support plate;
and a shaft stacking ring sealing structure is arranged between the first transparent cover and the second transparent cover and the corresponding first trunnion or second trunnion, and a graphite packing sealing structure is arranged between the adjacent first transparent cover and the second transparent cover.
In a preferred embodiment of the present invention, the first transparent cover, the second transparent cover and the end cover are all connected to the corresponding trunnion ring support plate, the connecting rod or the furnace shell support plate through bolts and nuts.
The technical scheme of the utility model has the following remarkable beneficial effects:
1. the modularized vertical lower suspension device improves the welding end face of the backing ring on the vertical lifting lug of the backing ring and the welding end face of the furnace shell on the vertical lifting lug of the furnace shell, a backing ring welding groove is formed between the welding end face of the backing ring and the backing ring, a furnace shell welding groove is formed between the welding end face of the furnace shell and the furnace shell, the backing ring welding groove and the furnace shell welding groove are gradually narrowed from the outer side of the modularized vertical lower suspension device to the inner side of the modularized vertical lower suspension device to form a single groove structure, and when the single groove structure is adopted, only the outer side of the vertical lifting lug of the backing ring and the outer side of the vertical lifting lug of the furnace shell need to be welded, so that the problem that a welding space needs to be reserved by disassembling a lower connecting rod when the inner welding space of the vertical lifting lug of the backing ring and the vertical lifting lug of the furnace shell is insufficient is solved; the modularized vertical lower suspension device is integrally installed when in use, so that the problems of part loss caused by leaving welding space for dismounting, difficulty in guaranteeing the precision during resetting, safety risk brought by the dismounting process and the like are solved.
2. The narrow end of the backing ring groove and the narrow end of the furnace shell groove can be blocked by the backing plate on the backing ring vertical lifting lug and the furnace shell vertical lifting lug, and a molten pool can be formed in the backing ring welding groove and the furnace shell welding groove during welding, so that the backing ring vertical lifting lug and the backing ring, and the furnace shell vertical lifting lug and the furnace shell can be better fused, and the quality of a welding seam is ensured; meanwhile, the back plate can also prevent welding penetration, and the phenomenon that welding melt overflows to increase the welding slag cleaning amount is avoided.
3. The welding positions can be dispersed through the first backing ring welding end face and the second backing ring welding end face on the backing ring supporting plate and the first furnace shell welding end face and the second furnace shell welding end face on the furnace shell supporting plate, and the problem of welding stress caused by too concentrated welding seams is avoided.
4. The radial thermal expansion of the furnace shell relative to the trunnion ring can be effectively absorbed through the connecting rod joint bearing and the trunnion joint bearing.
5. The end cover, the first transparent cover, the second transparent cover, the shaft stacked ring sealing structure and the graphite packing sealing structure are matched for sealing the connecting rod joint bearing and the trunnion joint bearing, and the connecting rod joint bearing and the trunnion joint bearing are guaranteed to be well lubricated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the utility model as a matter of case.
FIG. 1 is a schematic view of a modular vertical underslung mounting arrangement;
FIG. 2 is a front view schematic of a modular vertical underslung;
FIG. 3 is a schematic perspective view of a modular vertical underslung;
FIG. 4 is a schematic cross-sectional view of a vertical lifting lug of the trunnion ring;
FIG. 5 is an enlarged view of a portion A of FIG. 4;
FIG. 6 is a schematic diagram of a welding groove structure of a backing ring;
FIG. 7 is a schematic sectional view of a vertical lifting lug of the furnace shell;
FIG. 8 is an enlarged view of a portion of FIG. 7 at B;
FIG. 9 is a schematic view of a furnace shell welding groove structure.
Reference numerals of the above figures:
100. a modular vertical lower suspension; 200. a furnace shell; 300. a backing ring;
1. the backing ring is vertical to the lifting lug; 11. a trunnion ring support plate; 12. a first trunnion; 13. welding an end face of the backing ring; 131. welding an end face of the first backing ring; 132. welding an end face of the second backing ring; 133. an angle adjusting section; 14. welding a groove on the backing ring; 141. a narrow end of a backing ring groove;
2. the furnace shell is vertical to the lifting lug; 21. a furnace shell support plate; 22. a second trunnion; 23. welding the end surface of the furnace shell; 231. welding an end face of the first furnace shell; 232. welding the end face of the second furnace shell; 24. welding a groove on a furnace shell; 241. a narrow end of a furnace shell groove;
3. a connecting rod; 31. a sleeve; 32. a connecting rod knuckle bearing; 321. a first transparent cover;
4. a back plate;
5. a trunnion knuckle bearing; 51. a second transparent cover; 52. an end cap;
6. the shaft is sealed by a laminated ring;
7. a graphite packing sealing structure;
8. a distance ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A modularized vertical lower suspension device 100 is arranged between a furnace shell 200 and a trunnion ring 300 as shown in figures 1, 2 and 3, the modularized vertical lower suspension device 100 comprises a trunnion ring vertical lifting lug 1, a furnace shell vertical lifting lug 2 and a connecting rod 3, and two ends of the connecting rod 3 are respectively connected with the trunnion ring vertical lifting lug 1 and the furnace shell vertical lifting lug 2 in a rotating way.
As shown in fig. 4 and 6, a trunnion ring welding end face 13 is arranged on the trunnion ring vertical lifting lug 1, the trunnion ring welding end face 13 can be matched with the outer wall of the trunnion ring 300 to form a trunnion ring welding groove 14, and the trunnion ring welding groove 14 is gradually narrowed from the outer side of the modular vertical lower suspension device 100 to the inner side of the modular vertical lower suspension device 100.
As shown in fig. 7 and 9, a furnace shell welding end surface 23 is arranged on the furnace shell vertical lifting lug 2, the furnace shell welding end surface 23 can be matched with the outer wall of the furnace shell 200 to form a furnace shell welding groove 24, and the furnace shell welding groove 24 is gradually narrowed from the outer side of the modular vertical lower suspension device 100 to the inner side of the modular vertical lower suspension device 100.
Specifically, a plurality of the modular vertical lower suspension devices 100 are arranged between the furnace shell 200 and the trunnion ring 300 at intervals, and the number of the modular vertical lower suspension devices 100 can be 3, 4 or more, which is not limited herein. When the modularized vertical lower suspension device 100 is used, the trunnion ring vertical lifting lugs 1 of the modularized vertical lower suspension device 100 are welded to the trunnion ring 300, the furnace shell vertical lifting lugs 2 of the modularized vertical lower suspension device 100 are welded to the furnace shell 200, the modularized vertical lower suspension device 100 can be installed in place at one time, only one-side welding is needed during welding, and the installation efficiency and the installation precision are improved.
In this embodiment, the end of the trunnion ring welding groove 14 disposed inside the modular vertical lower suspension device 100 is a trunnion ring groove narrow end 141, and the end of the furnace shell welding groove 24 disposed inside the modular vertical lower suspension device 100 is a furnace shell groove narrow end 241.
Specifically, the trunnion ring vertical lifting lug 1 comprises two trunnion ring supporting plates 11 arranged in parallel and a first trunnion 12 rotatably installed between the two trunnion ring supporting plates 11, trunnion ring welding end faces 13 are arranged on the two trunnion ring supporting plates 11, and narrow ends 141 of two trunnion ring grooves are respectively arranged on two sides of an area clamped by the two trunnion ring supporting plates 11. The vertical lifting lug 2 of the furnace shell comprises two furnace shell supporting plates 21 which are arranged in parallel and a second trunnion 22 which is rotatably arranged between the two furnace shell supporting plates 21, the two furnace shell supporting plates 21 are respectively provided with a furnace shell welding end surface 23, and the narrow ends 241 of the two furnace shell grooves are respectively arranged at two sides of the area clamped by the two furnace shell supporting plates 21.
In order to avoid the problem of welding stress caused by over-concentrated welding seams, in this embodiment, each trunnion ring welding end surface 13 includes a first trunnion ring welding end surface 131 and a second trunnion ring welding end surface 132, the first trunnion ring welding end surface 131 is connected to the second trunnion ring welding end surface 132 through an angle adjusting section 133, the first trunnion ring welding end surface 131 is used for being connected to the bottom surface of the trunnion ring 300, and the second trunnion ring welding end surface 132 is used for being connected to the side surface of the trunnion ring 300. The problem of stress concentration is solved through first trunnion ring welding terminal surface 131 and second trunnion ring welding terminal surface 132 dispersion welding seam position, separately sets up the outer wall of the first trunnion ring welding terminal surface 131 and the fitting trunnion ring 300 that second trunnion ring welding terminal surface 132 can be better simultaneously, has improved joint strength. Every stove outer shell welded end face 23 includes first stove outer shell welded end face 231 and second stove outer shell welded end face 232, first stove outer shell welded end face 231 and second stove outer shell welded end face 232 interval set up in the both sides of second trunnion 22, first stove outer shell welded end face 231 and second stove outer shell welded end face 232 all are used for being connected with the outer wall of stove outer shell 200, weld position has been disperseed through first trunnion ring welded end face 131 and second trunnion ring welded end face 132, weld length has been reduced, welding stress concentration has been avoided.
In order to form a molten pool in the trunnion ring welding groove 14 and the furnace shell welding groove 24 during welding, so that the welding quality is better, in this embodiment, the trunnion ring vertical lifting lug 1 and the furnace shell vertical lifting lug 2 are both connected with the back plate 4, the trunnion ring groove narrow end 141 and the furnace shell groove narrow end 241 can be blocked by the back plate 4, and the part of the back plate 4 extending out of the trunnion ring vertical lifting lug 1 and the furnace shell vertical lifting lug 2 is arranged in a first length L. The back plate 4 also serves to prevent solder-through. Specifically, the first length L is set to 8mm, and both the groove angle a of the trunnion ring welding groove 14 and the groove angle b of the furnace shell welding groove 24 are set to 35 °.
In the present embodiment, the two ends of the connecting rod 3 are hinged with the first trunnion 12 and the second trunnion 22, respectively. Specifically, two ends of a first trunnion 12 are respectively installed on two trunnion ring support plates 11 through trunnion joint bearings 5, and two ends of a second trunnion 22 are respectively installed on two furnace shell support plates 21 through trunnion joint bearings 5; both ends of connecting rod 3 all are equipped with and rotate mounting structure, rotate mounting structure and include sleeve 31 and the connecting rod joint bearing 32 of suit on sleeve 31, and connecting rod joint bearing 32 connects on connecting rod 3, and the sleeve 31 that is located the relative both sides of connecting rod 3 is the suit respectively on first trunnion 12 and second trunnion 22.
Specifically, when the trunnion joint bearing 5 is installed, distance rings 8 are respectively arranged between the sleeve 31 and the trunnion joint bearing 5 positioned on both sides of the sleeve 31, the distance rings 8 are respectively sleeved on the corresponding first trunnion 12 or second trunnion 22, and the trunnion joint bearing 5 can be prevented from moving on the first trunnion 12 or the second trunnion 22 through the distance rings 8.
In order to ensure that the connecting rod knuckle bearing 32 and the trunnion knuckle bearing 5 have good lubrication, in the present embodiment, as shown in fig. 5 and 8, first transparent covers 321 are respectively fastened to two sides of the connecting rod knuckle bearing 32, and both the first transparent covers 321 are connected to the connecting rod 3; two sides of the trunnion joint bearing 5 are respectively provided with a second transparent cover 51 and an end cover 52 in a buckling manner, the end cover 52 covers one end of the corresponding first trunnion 12 or one end of the second trunnion 22, and the second transparent cover 51 and the end cover 52 are both connected to the corresponding trunnion ring support plate 11 or the furnace shell support plate 21; an axial overlapping ring sealing structure 6 is arranged between the first transparent cover 321 and the second transparent cover 51 and the corresponding first trunnion 12 or second trunnion 22, and a graphite packing sealing structure 7 is arranged between the adjacent first transparent cover 321 and the second transparent cover 51.
Specifically, both ends of the first trunnion 12 and both ends of the second trunnion 22 can be sealed by end caps 52; a shaft laminated ring sealing structure 6 is arranged between a second transparent cover 51 on the first trunnion 12 and the distance ring 8 to form sealing, a shaft laminated ring sealing structure 6 is arranged between a first transparent cover 321 on the first trunnion 12 and the sleeve 31 on the first trunnion 12 to form sealing, and a graphite packing sealing structure 7 is arranged between the first transparent cover 321 on the first trunnion 12 and the second transparent cover 51 to form sealing; correspondingly, a shaft stacked ring sealing structure 6 is arranged between the second through cover 51 on the second trunnion 22 and the distance ring 8 to form sealing, and a graphite packing sealing structure 7 is arranged between the first through cover 321 on the second trunnion 22 and the sleeve 31 on the second trunnion 22 to form sealing.
In order to facilitate assembly of the components, specifically, screw holes are preset in the first transparent cover 321, the second transparent cover 51, the end cover 52, the trunnion ring support plate 11 and the furnace shell support plate 21, and during installation, the first transparent cover 321, the second transparent cover 51 and the end cover 52 are all connected to the corresponding trunnion ring support plate 11, the connecting rod 3 or the furnace shell support plate 21 through bolts and nuts.
When the welding device is used, the backing ring vertical lifting lug 1 is butted to a backing ring 300, a backing ring welding groove 14 is formed by the backing ring welding end face 13 and the outer wall of the backing ring 300, the narrow end 141 of the backing ring groove is blocked by the back plate 4, then, single-side welding operation is carried out, the first backing ring welding end face 131 is connected with the bottom face of the backing ring 300 in a welding mode, and the second backing ring welding end face 132 is connected with the side face of the backing ring 300 in a welding mode; meanwhile, the furnace shell vertical lifting lugs 2 are butted on the furnace shell 200, a furnace shell welding groove 24 is formed by the furnace shell welding end surface 23 and the outer wall of the furnace shell 200, the narrow end 241 of the furnace shell groove is blocked by the back plate 4, and then, one-side welding operation is carried out, so that the first furnace shell welding end surface 231 and the second furnace shell welding end surface 232 are connected with the outer wall of the furnace shell 200 in a welding mode.
The utility model has the beneficial effects that: the welding method is characterized in that a trunnion ring welding end face 13 on a trunnion ring vertical lifting lug 1 and a furnace shell welding end face 23 on a furnace shell vertical lifting lug 2 are improved, a trunnion ring welding groove 14 is formed between the trunnion ring welding end face 13 and a trunnion ring 300, a furnace shell welding groove 24 is formed between the furnace shell welding end face 23 and a furnace shell 200, the trunnion ring welding groove 14 and the furnace shell welding groove 24 are gradually narrowed from the outer side of a modular vertical lower suspension device 100 to the inner side of the modular vertical lower suspension device 100 to form a single groove structure, when the single groove structure is adopted, only the outer side of the trunnion ring vertical lifting lug 1 and the outer side of the furnace shell vertical lifting lug 2 need to be welded, and the problem that when the inner welding space of the trunnion ring vertical lifting lug 1 and the furnace shell vertical lifting lug 2 is insufficient, a lower connecting rod 3 needs to be disassembled to leave a welding space is solved; the modularized vertical lower suspension device 100 is installed as a whole when in use, so that the problems of part loss caused by leaving welding space for disassembly, difficulty in guaranteeing the precision during resetting, safety risks brought in the disassembly and assembly process and the like are avoided; the utility model can be installed in place once when in use, reduces the installation difficulty, improves the installation efficiency and the installation precision, and simultaneously only needs to be welded on one side when in installation, reduces the labor intensity of workers and greatly improves the installation efficiency.
The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (10)
1. A modularized vertical lower suspension device is arranged between a furnace shell and a backing ring and is characterized by comprising a backing ring vertical lifting lug, a furnace shell vertical lifting lug and a connecting rod, wherein two ends of the connecting rod are respectively connected with the backing ring vertical lifting lug and the furnace shell vertical lifting lug in a rotating way;
the supporting ring vertical lifting lug is provided with a supporting ring welding end face, the supporting ring welding end face can be matched with the outer wall of the supporting ring to form a supporting ring welding groove, and the supporting ring welding groove is gradually narrowed from the outer side of the modular vertical lower suspension device to the inner side of the modular vertical lower suspension device;
the furnace shell welding end face can be matched with the outer wall of the furnace shell to form a furnace shell welding groove, and the furnace shell welding groove is gradually narrowed from the outer side of the modular vertical lower suspension device to the inner side of the modular vertical lower suspension device.
2. The modular vertical underslung of claim 1 wherein the end of said trunnion ring welding groove disposed on the inside of said modular vertical underslung is a trunnion ring groove narrow end and the end of said furnace shell welding groove disposed on the inside of said modular vertical underslung is a furnace shell groove narrow end;
the backing ring vertical lifting lug and the furnace shell vertical lifting lug are both connected with a back plate, the backing plate can block the backing ring groove narrow end and the furnace shell groove narrow end, and the part of the back plate extending out of the backing ring vertical lifting lug and the furnace shell vertical lifting lug is in a first length setting.
3. The modular vertical underslung of claim 2, wherein said first length is between 6mm and 12 mm.
4. The modular vertical underslung of claim 1 or 2 wherein the bevel angle of said trunnion ring welding bevel and the bevel angle of said furnace shell welding bevel are both 15 ° to 60 °.
5. The modular vertical underslung device of claim 2, wherein said trunnion ring vertical lifting lug comprises two trunnion ring support plates arranged side by side and a first trunnion rotatably mounted between said two trunnion ring support plates, said trunnion ring welding end faces are provided on both said trunnion ring support plates, and narrow ends of two trunnion ring grooves are respectively provided on both sides of a region sandwiched by said two trunnion ring support plates;
the furnace shell vertical lifting lug comprises two furnace shell supporting plates arranged in parallel and a second trunnion rotatably arranged between the two furnace shell supporting plates, the two furnace shell supporting plates are respectively provided with a welding end face of the furnace shell, and the narrow ends of the two furnace shell bevels are respectively arranged at two sides of an area clamped by the two furnace shell supporting plates;
and two ends of the connecting rod are respectively hinged with the first trunnion and the second trunnion.
6. The modular vertical underslung of claim 5, wherein each said trunnion ring welded end surface comprises a first trunnion ring welded end surface and a second trunnion ring welded end surface, said first trunnion ring welded end surface being connected to said second trunnion ring welded end surface by an angle adjustment section, said first trunnion ring welded end surface being adapted to be connected to a bottom surface of said trunnion ring, said second trunnion ring welded end surface being adapted to be connected to a side surface of said trunnion ring.
7. The modular vertical underslung of claim 5 wherein each of said furnace shell welded end surfaces comprises a first furnace shell welded end surface and a second furnace shell welded end surface, said first furnace shell welded end surface and said second furnace shell welded end surface being spaced apart on opposite sides of said second trunnion, said first furnace shell welded end surface and said second furnace shell welded end surface being adapted to be coupled to an outer wall of said furnace shell.
8. The modular vertical underslung device of claim 5 wherein both ends of said first trunnion are mounted to said two trunnion ring support plates by trunnion knuckle bearings, respectively, and both ends of said second trunnion are mounted to said two furnace shell support plates by trunnion knuckle bearings, respectively;
the both ends of connecting rod all are equipped with rotates mounting structure, it includes sleeve and suit to rotate mounting structure connecting rod joint bearing on the sleeve, connecting rod joint bearing connects on the connecting rod, is located the both ends of connecting rod the sleeve is the suit respectively in first gudgeon with on the second gudgeon.
9. The modular vertical underslung device of claim 8, wherein first transparent covers are respectively fastened to both sides of said connecting rod knuckle bearing, and both of said first transparent covers are connected to said connecting rod;
two sides of the trunnion joint bearing are respectively provided with a second through cover and an end cover in a buckling manner, the end covers are covered at one end of the corresponding first trunnion or one end of the corresponding second trunnion, and the second through cover and the end covers are connected to the corresponding trunnion ring support plate or the furnace shell support plate;
and a shaft stacking ring sealing structure is arranged between the first transparent cover and the second transparent cover and the corresponding first trunnion or second trunnion, and a graphite packing sealing structure is arranged between the adjacent first transparent cover and the second transparent cover.
10. The modular vertical underslung of claim 9 wherein said first transparent cover, said second transparent cover and said end caps are each attached to a corresponding one of said trunnion ring support plate, said tie rod or said furnace shell support plate by bolts and nuts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122427773.6U CN215668085U (en) | 2021-10-09 | 2021-10-09 | Modularized vertical lower suspension device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122427773.6U CN215668085U (en) | 2021-10-09 | 2021-10-09 | Modularized vertical lower suspension device |
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| CN215668085U true CN215668085U (en) | 2022-01-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161053A (en) * | 2021-11-29 | 2022-03-11 | 中冶京诚工程技术有限公司 | Method for modularizing converter suspension device |
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2021
- 2021-10-09 CN CN202122427773.6U patent/CN215668085U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161053A (en) * | 2021-11-29 | 2022-03-11 | 中冶京诚工程技术有限公司 | Method for modularizing converter suspension device |
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