CN111979405A - Synchronous double-stepping furnace bottom and working method thereof - Google Patents
Synchronous double-stepping furnace bottom and working method thereof Download PDFInfo
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- CN111979405A CN111979405A CN202010830822.8A CN202010830822A CN111979405A CN 111979405 A CN111979405 A CN 111979405A CN 202010830822 A CN202010830822 A CN 202010830822A CN 111979405 A CN111979405 A CN 111979405A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/70—Furnaces for ingots, i.e. soaking pits
Abstract
The invention discloses a synchronous double-stepping furnace bottom and a working method thereof, wherein the synchronous double-stepping furnace bottom comprises two sets of parallel stepping devices and at least two sets of synchronous mechanisms arranged between the two sets of stepping devices; the stepping device comprises a lifting frame, a translation centering wheel, a translation frame, an inclined slideway, an inclined rail seat, a lifting hydraulic cylinder, a translation hydraulic cylinder, an upper supporting wheel, a horizontal rail seat, a lower supporting wheel and a lifting centering wheel; the synchronous mechanism comprises a guide rod, a butt joint seat arranged on one set of translation frame, a guide cylinder arranged on the other set of translation frame and a synchronous hydraulic cylinder capable of being locked, wherein the working end of the synchronous hydraulic cylinder is connected with the rear end of the guide rod, the periphery of the front part of the guide rod is in micro clearance fit in the guide cylinder so as to ensure that the guide rod is horizontally vertical to the translation frame, and when the front part of the guide rod passes through the guide cylinder and extends into the butt joint seat, the left side and the right side of the guide rod are in micro clearance fit with the butt joint seat, and. The invention can select the arrangement of single row long material and double row short material in the furnace to realize synchronous operation so as to carry out heating treatment.
Description
Technical Field
The invention belongs to the field of hot rolling heating furnaces, and particularly relates to a synchronous double-stepping furnace bottom and a working method thereof.
Background
Because of different specifications of the blanks of the heating furnaces, the material distribution in the furnaces can be realized by double-row short material distribution (the double furnace bottoms can stagger stepping action), and can also be realized by single-row long material distribution (the double furnace bottoms are required to simultaneously step action) for heating and stepping production. At present, the staggered material distribution of the double-step furnace bottoms is adopted in the market, the rhythm of a rolling mill is met, the maximum matching of productivity is realized, however, the material distribution of the two furnace bottoms is adopted to realize the step-by-step heating production with synchronous furnace bottoms when the single-row long material production cannot be realized.
Disclosure of Invention
The invention aims to provide a synchronous double-step furnace bottom and a working method thereof.
The technical scheme adopted by the invention is as follows:
a synchronous double-stepping furnace bottom comprises two sets of stepping devices arranged side by side and at least two sets of synchronous mechanisms arranged between the two sets of stepping devices; the stepping device comprises a lifting frame, a translation frame with translation centering wheels arranged at the bottom, a plurality of inclined slide ways with stop blocks arranged at the lower ends, a plurality of inclined track seats, a lifting hydraulic cylinder and a lifting hydraulic cylinder, wherein the cylinder bodies are hinged and fixed; the synchronous mechanism comprises a guide rod, a butt joint seat arranged on one set of translation frame, a guide cylinder arranged on the other set of translation frame and a synchronous hydraulic cylinder capable of being locked, wherein the working end of the synchronous hydraulic cylinder is connected with the rear end of the guide rod, the periphery of the front part of the guide rod is in micro clearance fit in the guide cylinder so as to ensure that the guide rod is horizontally vertical to the translation frame, and when the front part of the guide rod passes through the guide cylinder and extends into the butt joint seat, the left side and the right side of the guide rod are in micro clearance fit with the butt joint seat, and.
Further, the guide arm includes that the front portion is square and the front end is wedge-shaped guide arm body and establishes the antifriction plate in the anterior left and right sides of guide arm body, and the guide cylinder includes the guide cylinder body and establishes the antifriction plate of left and right sides and last downside in the guide cylinder body, and the butt joint seat includes the butt joint seat body and establishes the antifriction plate in the butt joint seat body left and right sides, is equipped with the backing plate on the guide arm between antifriction plate and the guide arm body, through the anterior and guide cylinder of backing plate adjustment guide arm and the clearance volume of butt joint seat.
Furthermore, the clearance between the left side and the right side of the guide rod and the guide cylinder is within 2mm, the clearance between the left side and the right side of the guide rod and the butt joint seat is within 5mm when the front part of the guide rod extends into the butt joint seat, and the single-side movement amount of the upper side and the lower side is within 200 mm.
Furthermore, the upper side and the lower side of the guide cylinder are provided with lubricating liquid holes which respectively point to the upper side and the lower side of the guide rod.
Furthermore, the working end of the synchronous hydraulic cylinder and the rear end of the guide rod are both connecting rings with bearings, the two connecting rings are connected through a connecting assembly, the connecting assembly comprises a connecting sleeve, two ends of the connecting sleeve are respectively sleeved on the two connecting rings, two connecting shafts are respectively matched with the two connecting rings to penetrate through the bearings on the two connecting rings, and two ends of each connecting shaft are installed on the connecting sleeve and fixed.
Furthermore, the guide cylinder and the butt joint seat are fixedly installed through respective bottom plate matched bolts, and supporting plates are arranged on the bottom plates.
Furthermore, an overhaul platform for overhauling the synchronous hydraulic cylinder is arranged on the translation frame.
Furthermore, an upper supporting wheel, a horizontal rail seat, a lower supporting wheel and a lifting centering wheel are arranged on two sides of the lifting frame, the horizontal moving centering wheels are arranged on two sides of the horizontal moving frame, the inclined slide way and the inclined rail seat are arranged below two sides of the lifting frame, the lifting centering wheel is positioned between the two lower supporting wheels, and the horizontal moving centering wheel is positioned between the two upper supporting wheels.
The working method of the synchronous double-stepping furnace bottom comprises the following steps:
when double rows of short materials are used, the guide rod does not extend into the butt joint seat, and the two translation frames are mutually independent; for each set of stepping device, the lifting hydraulic cylinder drives the translation frame to lift through the lifting frame, the translation hydraulic cylinder drives the translation frame to translate, and meanwhile, the lifting centering wheel and the translation centering wheel are respectively matched with the inclined rail seat and the horizontal rail seat to prevent deviation; for the two sets of stepping devices, the lifting and the translation of the two stepping devices are staggered, so that the heating production and stepping operation of the double rows of short materials in the furnace are realized.
When the material is long in a single row, the guide rod is controlled by the synchronous hydraulic cylinder to extend into the butt joint seat, the two translation frames are rigidly interlocked in the translation direction to realize synchronization, and a certain amount of movement is realized in the lifting direction; for each set of stepping device, the lifting hydraulic cylinder drives the translation frame to lift through the lifting frame, the translation hydraulic cylinder drives the translation frame to translate, and meanwhile, the lifting centering wheel and the translation centering wheel are respectively matched with the inclined rail seat and the horizontal rail seat to prevent deviation; for the two sets of stepping devices, the two sets of stepping devices perform synchronous actions of lifting and translation by taking displacement sensors on the lifting hydraulic cylinder and the horizontal transfer hydraulic cylinder as feedback, so that heating production and stepping operation of single-row long materials in the furnace are realized.
Furthermore, during single-row long material production, a displacement sensor on a lifting hydraulic cylinder of one set of stepping device is used for online control, a displacement sensor on a lifting hydraulic cylinder of the other set of stepping device is used for offline comparison, a displacement sensor on a translation hydraulic cylinder of one set of stepping device is used for online control, and a displacement sensor on a translation hydraulic cylinder of the other set of stepping device is used for offline comparison.
The invention has the beneficial effects that:
the invention can adopt one furnace to selectively realize the heating stepping production of single row long materials and double row short materials, thereby saving space, capital and energy; when a single row of long materials are produced, if the two sets of stepping devices are asynchronous, a steel billet can deviate or deflect on the movable beam and the fixed beam along with stepping, and an accident can occur when the steel billet is easily rubbed against the side wall of the furnace before tapping, so that the two sets of stepping devices are required to be synchronous (step adjustment is consistent), the two sets of stepping devices perform synchronous actions of lifting and translation by taking displacement sensors on a lifting hydraulic cylinder and a horizontal hydraulic cylinder as feedback, the frequent occurrence of alternating stress and the caused damage are reduced, the tonnage of lifting of the lifting frame is too heavy (generally can reach more than three hundred and fifty tons) and hard synchronization can not be realized, and the synchronous deviation can occur during lifting, so a certain amount of activity is left in the lifting direction, if the movable water beam (acting together with the translation frame) in the furnace props against the steel billet, the steel billet also only rises and falls in the height direction and cannot cause deflection, the side wall of the furnace can not be collided in the process of step discharging; the translation resistance of the translation frame is small (generally only dozens of tons), if the horizontal displacement has large deviation, the horizontal displacement is not allowed, soft synchronization (hydraulic control system and electrical detection comparison correction) and hard synchronization (synchronization mechanism) can be realized through the method, the front part of the guide rod extends into the butt joint seat, and the synchronous push rod is rigidly interlocked in the translation direction to bear the horizontal force and the horizontal torque in the horizontal direction.
Drawings
FIG. 1 is a front view of a double step hearth capable of synchronization in an embodiment of the present invention.
FIG. 2 is a side view of a double step hearth capable of synchronization in an embodiment of the present invention.
Fig. 3 is a top view of the arrangement of the synchronization mechanism between two sets of stepper devices in an embodiment of the present invention.
Fig. 4 is a schematic diagram of the docking of the synchronization mechanism in the embodiment of the present invention.
FIG. 5 is a cross-sectional view of a guide rod within a guide cylinder in an embodiment of the present invention.
FIG. 6 is a cross-sectional view of a guide bar within a docking station in an embodiment of the present invention.
In the figure: 1-a lower support wheel; 2-inclined slide way; 3, lifting the rack; 4-lifting centering wheel; 5-inclining the rail seat; 6-a translation frame; 7-upper support wheels; 8-horizontal rail seat; 9-translating the centering wheel; 10-a translational hydraulic cylinder; 11-a lifting hydraulic cylinder; 12-a burner; 13-a walking beam; 14-a steel billet; 15-furnace body; 16-a fixed beam; 17-a docking station; 18-a guide bar; 19-a guide cylinder; 20-synchronous hydraulic cylinder; 21-maintenance platform; 22-a connecting ring; 23-a connecting shaft; 24-connecting sleeves; 25-the guide cylinder body; 26-a wear plate; 27-lubricant hole; 28-a support plate; 29-a backing plate; 30-a guide rod body; 31-a bolt; 32-a bottom plate; 33-docking cradle body.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 to 4, a synchronous double-stepping furnace bottom comprises two sets of stepping devices arranged side by side and at least two sets of synchronous mechanisms arranged between the two sets of stepping devices; the stepping device comprises a lifting frame 3, a translation frame 6 with a translation centering wheel 9 is distributed at the bottom, a plurality of inclined slide ways 2 with stop blocks at the low ends, a plurality of inclined rail seats 5, lifting hydraulic cylinders 11 and a lifting hydraulic cylinder 10 which are hinged and fixed by cylinder bodies, an upper supporting wheel 7 and a horizontal rail seat 8 are distributed at the top of the lifting frame 3, a lower supporting wheel 1 and a lifting centering wheel 4 are distributed at the bottom, displacement sensors are arranged on the lifting hydraulic cylinders 11 and the lifting hydraulic cylinder 10, and the working ends are respectively hinged with the lifting frame 3 and the translation frame 6 (because the lifting frame 3 is stressed greatly when lifted, one lifting frame 3 is provided with two lifting hydraulic cylinders 11), the lifting frame 3 is supported on the corresponding inclined slide ways 2 through the lower supporting wheel 1 and prevented from shifting when being lifted through the sliding fit of the lifting centering wheel 4 and the corresponding inclined rail seats 5, the translation frame 6 is supported on the upper supporting wheel 7 and prevented from translating through the sliding fit of the translation centering wheel 9 Offsetting; the synchronous mechanism comprises a guide rod 18, a butt joint seat 17 installed on one set of translation frame 6, a guide cylinder 19 installed on the other set of translation frame 6 and a synchronous hydraulic cylinder 20 capable of being locked, the working end of the synchronous hydraulic cylinder 20 is connected with the rear end of the guide rod 18, the periphery of the front part of the guide rod 18 is in micro clearance fit in the guide cylinder 19 so as to ensure that the guide rod 18 is horizontally vertical to the longitudinal direction of the translation frame 6, when the front part of the guide rod 18 penetrates through the guide cylinder 19 and extends into the butt joint seat 17, the left side and the right side of the guide rod 18 are in micro clearance fit with the butt joint seat 17.
As shown in fig. 1 and 2, in the present embodiment, an upper supporting wheel 7, a horizontal rail base 8, a lower supporting wheel 1 and a lifting centering wheel 4 are all provided at both sides of the crane 3, a translational centering wheel 9 is provided at both sides of the translational frame 6, an inclined slide 2 and an inclined rail base 5 are provided below both sides of the crane 3, the lifting centering wheel 4 is located between the two lower supporting wheels 1, and the translational centering wheel 9 is located between the two upper supporting wheels 7.
As shown in fig. 4 to 6, in the present embodiment, the guide bar 18 includes a guide bar body 30 having a square front portion and a wedge-shaped front end, and wear plates 26 disposed on the left and right sides of the front portion of the guide bar body 30, the guide cylinder 19 includes a guide cylinder body 25, and wear plates 26 disposed on the left and right sides and the upper and lower sides in the guide cylinder body 25, the docking seat 17 includes a docking seat body 33 and wear plates 26 disposed on the left and right sides in the docking seat body 33, a backing plate 29 is disposed between the wear plates 26 on the guide bar 18 and the guide bar body 30, and the amount of clearance between the front portion of the guide bar 18 and the guide cylinder 19 and the. Wear-resisting plate 26 not only can wear-resisting but also can change, has improved whole life, and backing plate 29 has made things convenient for the adjustment of clearance volume, and the front portion of guide arm body 30 is the square, easy to assemble and clearance volume adjustment, and the front end is the wedge, conveniently leads to guide tube 19.
As shown in fig. 4, in the present embodiment, the working end of the synchronous hydraulic cylinder 20 and the rear end of the guide bar 18 are both connection rings 22 with bearings, the two connection rings 22 are connected by a connection assembly, the connection assembly includes a connection sleeve 24 with two ends respectively sleeved on the two connection rings 22, two connection shafts 23 respectively matched to pass through the bearings on the two connection rings 22, and two ends of the connection shaft 23 are mounted on the connection sleeve 24 and fixed. The connecting assembly is reliable in connection, convenient to assemble and disassemble and has a certain degree of freedom.
As shown in fig. 4, in the present embodiment, an inspection table 21 for inspecting the synchronous hydraulic cylinder is provided on the translation frame 6.
As shown in fig. 5, in the present embodiment, the guide cylinder 19 is provided with lubricant holes 27 on the upper and lower sides thereof, the lubricant holes 27 are directed to the upper and lower sides of the guide rod 18, respectively, and when in use, the lubricant is injected first and then the lubricant holes 27 are blocked, thereby playing a role of lubrication.
As shown in fig. 5 and 6, in the present embodiment, the guide cylinder 19 and the docking cradle 17 are fixed by fitting bolts 31 to respective bottom plates 32, and the bottom plates 32 are provided with support plates 28. The guide cylinder 19 and the butt-joint seat 17 are subjected to the side thrust of the guide rod 18, so that the connection is realized through the bottom plate 32, the support plate 28 is reinforced, and the structure is ensured to be reliable.
In the present embodiment, the clearance between the guide bar 18 and the guide tube 19 is within 2mm, the clearance between the guide bar 18 and the docking base 17 is within 5mm when the front portion of the guide bar 18 is inserted into the docking base 17, and the single-side movement amount of the upper and lower sides is within 200 mm.
The working method of the synchronous double-stepping furnace bottom comprises the following steps:
when double rows of short materials are used, the guide rod 18 does not extend into the butt joint seat 17, and the two translation frames 6 are mutually independent; for each set of stepping device, the lifting hydraulic cylinder 11 drives the translation frame 6 to lift through the lifting frame 3, the translation hydraulic cylinder 10 drives the translation frame 10 to translate, and meanwhile, the lifting centering wheel 4 and the translation centering wheel 9 are respectively matched with the inclined rail seat 5 and the horizontal rail seat 8 to prevent deviation; for the two sets of stepping devices, the lifting and the translation of the two stepping devices are staggered, so that the rapid production of double-row short material distribution is realized;
when a single row of long materials are produced, the synchronous hydraulic cylinder 20 controls the guide rod 18 to extend into the butt joint seat 17, the two translation frames 6 are rigidly interlocked in the translation direction to realize synchronization, and a certain amount of movement is generated in the lifting direction; for each set of stepping device, the lifting hydraulic cylinder 11 drives the translation frame 6 to lift through the lifting frame 3, the translation hydraulic cylinder 10 drives the translation frame 6 to translate, and the lifting centering wheel 4 and the translation centering wheel 9 are respectively matched with the inclined rail seat 5 and the horizontal rail seat 8 to prevent deviation; for the two sets of stepping devices, the lifting hydraulic cylinder 11 and the displacement sensor on the horizontal moving hydraulic cylinder 10 are used as feedback to carry out synchronous actions of lifting and translation, so that the production of single-row long material distribution is realized.
When a single row of long materials are produced, a displacement sensor on the lifting hydraulic cylinder 11 of one set of stepping device is used for on-line control, a displacement sensor on the lifting hydraulic cylinder 11 of the other set of stepping device is used for off-line comparison, a displacement sensor on the translation hydraulic cylinder 10 of one set of stepping device is used for on-line control, and a displacement sensor on the translation hydraulic cylinder 10 of the other set of stepping device is used for off-line comparison.
The invention can adopt a furnace (comprising a double-step furnace bottom) to selectively realize the distribution and the step heating of single-row long materials and double-row short materials, thereby saving space, funds and energy; when a single row of long materials are produced, if the two sets of stepping devices are asynchronous, a steel billet 14 can deviate or deflect on the movable beam 13 and the fixed beam 16 along with stepping, and the steel billet is easy to rub against the side wall 15 of the furnace before tapping, so that accidents occur, the two sets of stepping devices are required to be synchronous (step by step), the two sets of stepping devices perform synchronous actions of lifting and translation by taking displacement sensors on the lifting hydraulic cylinder 11 and the horizontal hydraulic cylinder 10 as feedback, frequent occurrence of alternating stress and excessive damage of a hard synchronous mechanism caused by the frequent occurrence of alternating stress are reduced, the lifting frame 3 is too heavy in lifting stress (generally more than 350 tons), the deviation in the height direction which can occur during lifting does not influence the stepping operation effect of the steel billet in the furnace, hard connection is not performed, only soft connection (hydraulic control and electrical detection comparison and correction) is performed, and a certain amount of activity is provided in the; the translation resistance of the translation frame 6 is small (generally only tens of tons) and large deviation is not allowed, so when rigid synchronization and soft synchronization control (hydraulic control and electrical detection) are used, the front part of the guide rod 18 extends into the butt joint seat 17 and is rigidly interlocked in the translation direction, and the synchronous push rod is enabled to bear horizontal force and horizontal torque in the horizontal direction.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a can synchronous pair of step stove bottom which characterized in that: comprises two sets of stepping devices which are arranged side by side and at least two sets of synchronous mechanisms which are arranged between the two sets of stepping devices; the stepping device comprises a lifting frame, a translation frame with translation centering wheels arranged at the bottom, a plurality of inclined slide ways with stop blocks arranged at the lower ends, a plurality of inclined track seats, a lifting hydraulic cylinder and a lifting hydraulic cylinder, wherein the cylinder bodies are hinged and fixed; the synchronous mechanism comprises a guide rod, a butt joint seat arranged on one set of translation frame, a guide cylinder arranged on the other set of translation frame and a synchronous hydraulic cylinder capable of being locked, wherein the working end of the synchronous hydraulic cylinder is connected with the rear end of the guide rod, the periphery of the front part of the guide rod is in micro clearance fit in the guide cylinder so as to ensure that the guide rod is horizontally vertical to the translation frame, and when the front part of the guide rod passes through the guide cylinder and extends into the butt joint seat, the left side and the right side of the guide rod are in micro clearance fit with the butt joint seat, and.
2. The synchronizable double-step hearth of claim 1, wherein: the guide arm includes that the front portion is square and the front end is wedge-shaped guide arm body and establishes the antifriction plate in the anterior left and right sides of guide arm body, and the guide cylinder includes the guide cylinder body and establishes the antifriction plate of this internal left and right sides of guide cylinder and downside, and the butt joint seat includes the butt joint seat body and establishes the antifriction plate of this internal left and right sides of butt joint seat, is equipped with the backing plate on the guide arm between antifriction plate and the guide arm body, through the anterior and guide cylinder of backing plate adjustment guide arm and the clearance volume to the seat.
3. The synchronizable double-stepping hearth according to claim 1 or 2, wherein: the clearance between the left side and the right side of the guide rod and the guide cylinder is within 2mm, when the front part of the guide rod extends into the butt joint seat, the clearance between the left side and the right side and the butt joint seat is within 5mm, and the unilateral activity of the upper side and the lower side is within 200 mm.
4. The synchronizable double-stepping hearth according to claim 1 or 2, wherein: and lubricating liquid holes are formed in the upper side and the lower side of the guide cylinder and point to the upper side and the lower side of the guide rod respectively.
5. The synchronizable double-step hearth of claim 1, wherein: the working end of the synchronous hydraulic cylinder and the rear end of the guide rod are both connecting rings with bearings, the two connecting rings are connected through a connecting assembly, the connecting assembly comprises a connecting sleeve, two connecting shafts and two connecting shafts, the two connecting sleeves are respectively sleeved on the two connecting rings at two ends, the two connecting shafts respectively penetrate through the bearings on the two connecting rings in a matched mode, and the two ends of each connecting shaft are installed on the connecting sleeve and fixed.
6. The synchronizable double-step hearth of claim 1, wherein: the guide cylinder and the butt joint seat are fixedly installed through respective bottom plate matched bolts, and supporting plates are arranged on the bottom plates.
7. The synchronizable double-step hearth of claim 1, wherein: and an overhauling platform for overhauling the synchronous hydraulic cylinder is arranged on the translation frame.
8. The synchronizable double-step hearth of claim 1, wherein: go up supporting wheel, horizontal rail seat, lower supporting wheel and lift centering wheel and all establish the both sides at the crane, the translation centering wheel is established in the both sides of translation frame, and slope slide and slope rail seat are established in the below of crane both sides, and the lift centering wheel is located between two lower supporting wheels, and the translation centering wheel is located between two upper supporting wheels.
9. A method of operating a synchronizable double-stepping hearth according to any one of claims 1 to 8, characterized in that:
when double rows of short materials are used, the guide rod does not extend into the butt joint seat, and the two translation frames are mutually independent; for each set of stepping device, the lifting hydraulic cylinder drives the translation frame to lift through the lifting frame, the translation hydraulic cylinder drives the translation frame to translate, and meanwhile, the lifting centering wheel and the translation centering wheel are respectively matched with the inclined rail seat and the horizontal rail seat to prevent deviation; for the two sets of stepping devices, the lifting and the translation of the two stepping devices are staggered, so that the heating production and stepping operation of the double rows of short materials in the furnace are realized.
When the material is long in a single row, the guide rod is controlled by the synchronous hydraulic cylinder to extend into the butt joint seat, the two translation frames are rigidly interlocked in the translation direction to realize synchronization, and a certain amount of movement is realized in the lifting direction; for each set of stepping device, the lifting hydraulic cylinder drives the translation frame to lift through the lifting frame, the translation hydraulic cylinder drives the translation frame to translate, and meanwhile, the lifting centering wheel and the translation centering wheel are respectively matched with the inclined rail seat and the horizontal rail seat to prevent deviation; for the two sets of stepping devices, the two sets of stepping devices perform synchronous actions of lifting and translation by taking displacement sensors on the lifting hydraulic cylinder and the horizontal transfer hydraulic cylinder as feedback, so that heating production and stepping operation of single-row long materials in the furnace are realized.
10. A method of operating a synchronizable double-stepping hearth according to claim 9, characterized in that: when the single-row long material is produced, the displacement sensor on the lifting hydraulic cylinder of one set of stepping device is used for on-line control, the displacement sensor on the lifting hydraulic cylinder of the other set of stepping device is used for off-line comparison, the displacement sensor on the translation hydraulic cylinder of one set of stepping device is used for on-line control, and the displacement sensor on the translation hydraulic cylinder of the other set of stepping device is used for off-line comparison.
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| CN202010830822.8A CN111979405B (en) | 2020-08-18 | 2020-08-18 | Synchronous double-stepping furnace bottom and working method thereof |
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| CN202010830822.8A CN111979405B (en) | 2020-08-18 | 2020-08-18 | Synchronous double-stepping furnace bottom and working method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5704783A (en) * | 1994-03-31 | 1998-01-06 | Thermoprocess Gmbh | Walking hearth furnace |
| CN2901206Y (en) * | 2006-04-30 | 2007-05-16 | 太原市通泽成套设备有限公司 | Double moving beam step blank material heating furnace |
| CN201514105U (en) * | 2009-07-10 | 2010-06-23 | 山东博大集团有限公司 | Furnace bottom step mechanical device |
| CN205119816U (en) * | 2015-08-07 | 2016-03-30 | 北京神雾环境能源科技集团股份有限公司 | Beam type heating furnace stove bottom subassembly |
| WO2018176756A1 (en) * | 2017-03-29 | 2018-10-04 | 江苏亚威机床股份有限公司 | Feeding mechanism for metal plate flanging machine |
| CN208348661U (en) * | 2018-05-25 | 2019-01-08 | 廊坊华元机电工程有限公司 | Hydraulic locking apparatus for the construction of horizontal directional drill method Pipeline Crossing Program |
-
2020
- 2020-08-18 CN CN202010830822.8A patent/CN111979405B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5704783A (en) * | 1994-03-31 | 1998-01-06 | Thermoprocess Gmbh | Walking hearth furnace |
| CN2901206Y (en) * | 2006-04-30 | 2007-05-16 | 太原市通泽成套设备有限公司 | Double moving beam step blank material heating furnace |
| CN201514105U (en) * | 2009-07-10 | 2010-06-23 | 山东博大集团有限公司 | Furnace bottom step mechanical device |
| CN205119816U (en) * | 2015-08-07 | 2016-03-30 | 北京神雾环境能源科技集团股份有限公司 | Beam type heating furnace stove bottom subassembly |
| WO2018176756A1 (en) * | 2017-03-29 | 2018-10-04 | 江苏亚威机床股份有限公司 | Feeding mechanism for metal plate flanging machine |
| CN208348661U (en) * | 2018-05-25 | 2019-01-08 | 廊坊华元机电工程有限公司 | Hydraulic locking apparatus for the construction of horizontal directional drill method Pipeline Crossing Program |
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| CN111979405B (en) | 2022-04-15 |
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