CN1303226C - Pit heating furnace cover for implementing sealing state work piece transfer - Google Patents
Pit heating furnace cover for implementing sealing state work piece transfer Download PDFInfo
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- CN1303226C CN1303226C CNB2005100273404A CN200510027340A CN1303226C CN 1303226 C CN1303226 C CN 1303226C CN B2005100273404 A CNB2005100273404 A CN B2005100273404A CN 200510027340 A CN200510027340 A CN 200510027340A CN 1303226 C CN1303226 C CN 1303226C
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- knife
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Abstract
The present invention relates to a furnace cover of a well type heating furnace for realizing to transfer workpieces in a sealed state in the field of metallic material heat treatment. In the present invention, a furnace cover external sealing cover is arranged on the upper part of a well type heating furnace; the inner part of the furnace cover external sealing cover is provided with two semi-opening translational furnace covers; the upper part of the furnace cover external sealing cover has a lower sealing groove; the lateral surface of the furnace cover external sealing cover is provided with a furnace cover opening-closing power mechanism; furnace body sealing rings are arranged on the upper part of the well type heating furnace and the inner sides of the two semi-opening translational furnace covers; a furnace hanging hook is buckled with a workpiece hanging hook; a sealing cover between furnace bodies is connected with an up-and-down movement drive mechanism of a sealing cover, the inner side of the sealing cover between furnace bodies is provided with an upper sealing knife edge, the outer side of the sealing cover between furnace bodies is provided with an injection hole of protective gas, and the lower part of the injection hole of protective gas is connected with a lower sealing knife edge; an upper sealing groove is arranged on the lower part of a vertical heating furnace, and the sealing cover between furnace bodies is inserted in an upper sealing groove by the upper sealing knife edge and is inserted in a lower sealing groove by the lower sealing knife edge. The present invention is especially suitable for processing long beam barrel type workpieces and can obviously reduce the degree of oxidation during the process of transferring workpieces.
Description
Technical field
What the present invention relates to is a kind of process furnace bell, specifically is the pit heating furnace cover of realizing sealing state work piece transfer between a kind of vertical heater and the pit furnace, is used for metallic substance thermal treatment field.
Background technology
For the thin-wall part of the long tubular of some major diameters, its material normally adopts steel alloy, because its amount of distortion is had strict requirement, therefore, conventional thermal treatment heating schedule is to transfer in the process furnace after heating of employing ladder or the preheating to heat again.And for the alloy steel piece of the thin-walled of the long tubular of major diameter, normally adopt and transfer to the technology that heats in the process furnace again after the preheating and handle.Common hearth type heat treatment and tranfer system have two kinds, and a kind of is preheating and heating in pit furnace in pit furnace, and its workpiece transfer is to be undertaken by crane, and the workpiece that this mode heats can produce serious oxidation and decarburization; Another kind of mode is to adopt pit furnace that workpiece is carried out preheating, then vertical heater (end charging) body of heater is moved to the top of pit furnace, and the method for hanging in the employing heats among workpiece is hung vertical heater (end charging).Compare with heating with preheating in conventional pit furnace at conventional pit furnace, the temperature that this method has reduced in the workpiece transfer process descends and the surface oxidation decarbonization degree, but can't be implemented in the workpiece transfer under the low or non oxidizing condition, though this method is adopted by some enterprises, not seeing has relevant report.
Find through literature search prior art; Yi Guang is in " industry heating " 1999 (1): in " development of aluminum alloy heat treatment facility and gordian technique " literary composition of delivering on the 20-24; introduced vertical heater (end charging); this type of furnace is to adopt the overhead system process furnace; stove is taked bottom feed; bell is located at the stove bottom and adopts two halves opposite opened structure; in the stove bottom portable quenching tank car is set; workpiece adopts the suspension type heating in stove; do not take seal approach between bell and suspension type suspension hook mechanism and the heating furnace body, so this type of furnace can't realize heating under the protective atmosphere and the workpiece transfer process is not oxidized.
Summary of the invention
The present invention is directed to the deficiencies in the prior art and defective, propose a kind of pit heating furnace cover structure that realizes sealing state work piece transfer, make it in the original advantage of maintenance equipment, realized the purpose that the workpiece low or non oxidizing shifts.
The present invention is achieved by the following technical solutions, and the present invention is made up of two portions, and a part is that the bell of pit furnace is overall, and second section is the seal closure building block of vertical heater bottom.They comprise: seal closure move up and down suspension hook, the lower seal edge of a knife in the driving mechanism, two halves opposite opened translation bell, furnace sealing circle, bell folding actuating unit, bell outer gland sealing cover, lower seal groove cavity, workpiece suspension hook, stove, go up seal closure between sealing groove, shielding gas filling orifice, the body of heater, on seal the edge of a knife.The overall mode of connection of its bell is: bell outer gland sealing cover is set on the top of pit furnace, the inside of bell outer gland sealing cover is provided with two halves opposite opened translation bell, top at bell outer gland sealing cover is provided with lower seal groove cavity, the side of bell outer gland sealing cover is provided with bell folding actuating unit, the furnace sealing circle is arranged on the top of pit furnace and the inboard of two halves opposite opened translation bell, two halves opposite opened translation bell is the heavy wall plate of the band thermal insulation layer of two semicircles, the heavy wall plate of the band thermal insulation layer of two semicircles of two halves opposite opened translation bell is carried out under the promotion of bell folding actuating unit and is opened and close action, there is perforate middle part at the heavy wall plate of the band thermal insulation layer of two semicircles of two halves opposite opened translation bell, bore size is greater than the diameter of workpiece suspension hook suspension rod, the workpiece suspension hook stretches out two halves opposite opened translation bell, is exposed to outside the two halves opposite opened translation bell.The mode of connection of seal closure building block is: the seal closure building block is arranged at the vertical heater below; seal closure and the seal closure driving mechanism that moves up and down is connected between the body of heater; the seal closure inboard is provided with the sealing edge of a knife between the body of heater; its arranged outside shielding gas filling orifice; its below is connected with the lower seal edge of a knife, and last sealing groove is arranged at the vertical heater bottom.
Vertical heater is by relative movement (removable vertical heater, also removable pit furnace moves to the top of pit furnace, with the fire door medullary ray and the pit furnace fire door medullary ray centering of vertical heater, suspension hook descends and the joining of workpiece suspension hook in the stove.Seal closure descends under seal closure moves up and down the driving mechanism effect between the body of heater; insert lower seal groove cavity with pit furnace and vertical heater sealing by the last sealing groove of last sealing edge of a knife insertion and the lower seal edge of a knife, charge into shielding gas by the shielding gas filling orifice.Open two halves opposite opened translation bell, the interior suspension hook of stove descends with the joining of workpiece suspension hook and promotes workpiece and enters in the vertical heater.Seal closure rises under seal closure moves up and down the driving mechanism effect between the body of heater; vertical heater is by relative movement (removable vertical heater; also removable pit furnace) to the top (is alignment with the fire door medullary ray of vertical heater and the medullary ray of vertical heater bell) of its bell that the bell lid is tight, carry out the heating under the protective atmosphere.So far the transfer process of whole work-piece is finished.
The seal closure and the last sealing edge of a knife and the lower seal edge of a knife adopt seal welding to connect as one between the body of heater, and its structure is round shape.Can pack into sand, liquid or materials such as packing and flexible sealing material of last sealing groove and lower seal groove cavity seal.
Because vertical heater is the structure that adopts bottom opening; after in workpiece hangs in stove; if after being filled with shielding gas in the stove; after seal closure rises under seal closure moves up and down the driving mechanism effect between the body of heater; because shielding gas is hot; can not overflow, thereby the bottom of having realized vertical heater still can make workpiece that oxidation does not take place under the situation of opening by bottom opening.
After two halves opposite opened translation bell closure; after in pit furnace, charging into protective atmosphere; stretch out gap between suspension rod and the two halves opposite opened translation bell at the workpiece suspension hook and have gas and overflow, can take at this position point naked light, thereby play the purpose that prevents air admission.
Two halves opposite opened translation bell and pit furnace sealing also can be adopted following structure, comprise: the bell sealing edge of a knife, bell sealing groove, the bell seal closure sealing edge of a knife, bell seal closure sealing groove, lifting actuating unit, its mode of connection is: the inside of bell outer gland sealing cover is provided with two halves and splits translation bell below the bell sealing edge of a knife is set, bell outer gland sealing cover below is provided with the bell seal closure sealing edge of a knife, and bell outer gland sealing cover links to each other with the lifting actuating unit.Bell sealing groove and bell seal closure sealing groove are arranged on the pit furnace.
Realize the disengagement between the bell sealing edge of a knife and the bell sealing groove during rising by the lifting actuating unit.Its action is, when two halves opposite opened translation bell carry out translation open with resultant motion before, the lifting actuating unit is carried out the action that rises, and makes between the bell sealing edge of a knife and the bell sealing groove to throw off, and does not influence the translational movement that bell seals the edge of a knife.After two halves opposite opened translation bell closure, the lifting actuating unit is carried out the action of falling, and the bell sealing edge of a knife is inserted within the bell sealing groove, realizes sealing.In whole process, the bell seal closure sealing edge of a knife is among the sealing medium that inserts in the bell seal closure sealing groove all the time, guarantees both sealings.
Compared with prior art, the present invention proposes to realize between a kind of vertical heater (end charging) and the pit furnace pit heating furnace cover structure of sealing state work piece transfer, is specially adapted to the processing to long shaft-like workpiece.Can obviously reduce the degree of oxidation in the workpiece transfer process.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 realizes sealed state workpiece transfer synoptic diagram for structure of the present invention
Fig. 3 local structure synoptic diagram of the present invention
Embodiment
As shown in Figure 1, the present invention includes: seal closure move up and down suspension hook 9, the lower seal edge of a knife 10 in the driving mechanism 1, two halves opposite opened translation bell 2, furnace sealing circle 3, bell folding actuating unit 4, bell outer gland sealing cover 5, lower seal groove cavity 7, workpiece suspension hook 8, stove, go up seal closure 13 between sealing groove 11, shielding gas filling orifice 12, the body of heater, on seal the edge of a knife 14.Its mode of connection is:
The top of pit furnace 6 is provided with bell outer gland sealing cover 5, the inside of bell outer gland sealing cover 5 is provided with two halves opposite opened translation bell 2, top at bell outer gland sealing cover 5 is provided with lower seal groove cavity 7, the side of bell outer gland sealing cover 5 is provided with bell folding actuating unit 4, furnace sealing circle 3 is arranged on the top of pit furnace 6 and the inboard of two halves opposite opened translation bell 2, two halves opposite opened translation bell 2 is the heavy wall plate of the band thermal insulation layer of two semicircles, the heavy wall plate of the band thermal insulation layer of two semicircles of two halves opposite opened translation bell 2 is carried out under the promotion of bell folding actuating unit 4 and is opened and close action, there is perforate middle part at the heavy wall plate of the band thermal insulation layer of two semicircles of two halves opposite opened translation bell 2, bore size is greater than the diameter of workpiece suspension hook 8 suspension rods, workpiece suspension hook 8 stretches out two halves opposite opened translation bell 2, be exposed to outside the two halves opposite opened translation bell 2 suspension hook 9 and 8 joinings of workpiece suspension hook in the stove.The bell of this part formation pit furnace is overall.
Seal closure 13 and the seal closure driving mechanism 1 that moves up and down is connected between the body of heater; the seal closure inboard is provided with the sealing edge of a knife 14 between the body of heater; its arranged outside shielding gas filling orifice 12; its below is connected with the lower seal edge of a knife 10; last sealing groove 10 is arranged at the vertical heater bottom; seal closure 13 inserts by the last sealing edge of a knife 14 and goes up sealing groove 11, and seal closure 13 inserts lower seal groove cavity 7 by the lower seal edge of a knife 10.This part constitutes the seal closure building block of vertical heater bottom, and the seal closure building block is arranged at vertical heater 15 belows.
As shown in Figure 2, vertical heater 15 is by relative movement (removable vertical heater 15, also removable pit furnace 6) moves to the top of pit furnace 6, with the fire door medullary ray and the pit furnace 6 fire door medullary ray centerings of vertical heater 15, suspension hook 9 descends and 8 joinings of workpiece suspension hook in the stove.Seal closure 13 descends under seal closure moves up and down driving mechanism 1 effect between the body of heater; go up sealing groove 11, pit furnace 6 and vertical heater 15 are sealed by the last sealing edge of a knife 14 insertions, inject shielding gas by shielding gas filling orifice 12 by the lower seal edge of a knife 10 insertion lower seal groove cavities 7.Open two halves opposite opened translation bell 2, the interior suspension hook 9 of stove descends with 8 joinings of workpiece suspension hook and promotes workpiece and enters in the vertical heater 15.Seal closure 13 rises under seal closure moves up and down driving mechanism 1 effect between the body of heater; vertical heater 15 is by relative movement (removable vertical heater 15; also removable pit furnace 6) to the top (is alignment with the fire door medullary ray of vertical heater 15 and the medullary ray of vertical heater bell) of its bell that the bell lid is tight, carry out the heating under the protective atmosphere.So far the transfer process of whole work-piece is finished.
Seal closure 13 adopts seal welding to connect as one with the last sealing edge of a knife 14 and the lower seal edge of a knife 10 between the body of heater, and its structure is round shape.Can pack into sand, liquid or materials such as packing and flexible sealing material of last sealing groove 11 and lower seal groove cavity 7 seal.
Because vertical heater 15 is the structures that adopt bottom opening; after in workpiece hangs in stove; if after being filled with shielding gas in the stove; after seal closure 13 rises under seal closure moves up and down driving mechanism 1 effect between the body of heater; because shielding gas is hot; can not overflow, thereby the bottom of having realized vertical heater 15 still can make workpiece that oxidation does not take place under the situation of opening by bottom opening.
As shown in Figure 3, two halves opposite opened translation bell 2 is with pit furnace 6 sealings or adopt following structure, comprise: the bell sealing edge of a knife 16, bell sealing groove 17, the bell seal closure sealing edge of a knife 18, bell seal closure sealing groove 19, lifting actuating unit 20, by the rising realization bell sealing edge of a knife 16 of lifting actuating unit 20 and the disengagement between the bell sealing groove 17.Its action is, when two halves opposite opened translation bell 2 carry out translation open with resultant motion before, lifting actuating unit 20 is carried out the action that rises, and makes between the bell sealing edge of a knife 16 and the bell sealing groove 17 to throw off, and does not influence the translational movement that bell seals the edge of a knife 16.After two halves opposite opened translation bell 2 closures, lifting actuating unit 20 is carried out the action of falling, and the bell sealing edge of a knife 16 is inserted within the bell sealing groove 17, realizes sealing.In whole process, the bell seal closure sealing edge of a knife 18 is among the sealing medium that inserts in the bell seal closure sealing groove 19 all the time, guarantees both sealings.
Claims (4)
1, a kind of pit heating furnace cover of realizing sealing state work piece transfer, comprise: two halves opposite opened translation bell (2), it is characterized in that, also comprise: the seal closure driving mechanism (1) that moves up and down, furnace sealing circle (3), bell folding actuating unit (4), bell outer gland sealing cover (5), lower seal groove cavity (7), workpiece suspension hook (8), suspension hook (9) in the stove, the lower seal edge of a knife (10), last sealing groove (11), shielding gas filling orifice (12), seal closure between the body of heater (13), the last sealing edge of a knife (14), the top of pit furnace (6) is provided with bell outer gland sealing cover (5), the inside of bell outer gland sealing cover (5) is provided with two halves opposite opened translation bell (2), on the top of bell outer gland sealing cover (5) lower seal groove cavity (7) is set, the side of bell outer gland sealing cover (5) is provided with bell folding actuating unit (4), furnace sealing circle (3) is arranged on the top of pit furnace (6) and the inboard of two halves opposite opened translation bell (2), suspension hook (9) and workpiece suspension hook (8) joining in the stove, the bell of this part formation pit furnace is overall; Seal closure between the body of heater (13) and the seal closure driving mechanism (1) that moves up and down is connected; the seal closure inboard is provided with the sealing edge of a knife (14) between the body of heater; its arranged outside shielding gas filling orifice (12); its below is connected with the lower seal edge of a knife (10); last sealing groove (10) is arranged at the vertical heater bottom; seal closure (13) is by sealing groove (11) in the last sealing edge of a knife (14) insertion; seal closure (13) inserts lower seal groove cavity (7) by the lower seal edge of a knife (10); this part constitutes the seal closure building block of vertical heater bottom, and the seal closure building block is arranged at vertical heater (15) below.
2, the pit heating furnace cover of realization sealing state work piece transfer according to claim 1, it is characterized in that, two halves opposite opened translation bell (2) is the heavy wall plate of the band thermal insulation layer of two semicircles, the heavy wall plate of the band thermal insulation layer of two semicircles of two halves opposite opened translation bell (2) is carried out under the promotion of bell folding actuating unit (4) and is opened and close action, there is perforate middle part at the heavy wall plate of the band thermal insulation layer of two semicircles of two halves opposite opened translation bell (2), bore size is greater than the diameter of workpiece suspension hook (8) suspension rod, workpiece suspension hook (8) stretches out two halves opposite opened translation bell (2), is exposed to outside the two halves opposite opened translation bell (2).
3, the pit heating furnace cover of realization sealing state work piece transfer according to claim 1, it is characterized in that, seal closure between the body of heater (13) is an one with the last sealing edge of a knife (14), the lower seal edge of a knife (10) seal welding, its structure is round shape, and last sealing groove (11) and lower seal groove cavity (7) are inserted sand, liquid or packing and flexible sealing material sealing.
4, pit heating furnace cover according to the described realization sealing state work piece transfer of claim (1), it is characterized in that, two halves opposite opened translation bell (2) adopts following sealing structure with pit furnace (6) sealing, comprise: the bell sealing edge of a knife (16), bell sealing groove (17), the bell seal closure sealing edge of a knife (18), bell seal closure sealing groove (19), lifting actuating unit (20), the inside of bell outer gland sealing cover (5) is provided with two halves and splits translation bell below the bell sealing edge of a knife (16) is set, bell outer gland sealing cover (5) below is provided with the bell seal closure sealing edge of a knife (18), bell outer gland sealing cover (5) links to each other with lifting actuating unit (20), and bell sealing groove (17) and bell seal closure sealing groove (19) are arranged on the pit furnace (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100273404A CN1303226C (en) | 2005-06-30 | 2005-06-30 | Pit heating furnace cover for implementing sealing state work piece transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100273404A CN1303226C (en) | 2005-06-30 | 2005-06-30 | Pit heating furnace cover for implementing sealing state work piece transfer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1718766A CN1718766A (en) | 2006-01-11 |
| CN1303226C true CN1303226C (en) | 2007-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100273404A Expired - Fee Related CN1303226C (en) | 2005-06-30 | 2005-06-30 | Pit heating furnace cover for implementing sealing state work piece transfer |
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| CN (1) | CN1303226C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002345B (en) * | 2015-07-07 | 2017-05-31 | 长兴县大云电炉制造有限公司 | A kind of continous way hub of motorcycle heat-treatment furnace |
| CN106322999A (en) * | 2016-10-10 | 2017-01-11 | 太湖县牛力模具制造有限公司 | Automatic press fit sealed large-size workpiece resistance-heated furnace |
| CN112267014A (en) * | 2020-09-17 | 2021-01-26 | 邯郸一三高研科技有限公司 | Annealing device for metal wire production |
| CN115505701B (en) * | 2022-09-28 | 2023-04-18 | 江苏金色工业炉股份有限公司 | Environment-friendly automatic heat treatment production line for accurate quenching of thin-wall long rod piece |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309171A (en) * | 1980-05-27 | 1982-01-05 | Granco Equipment, Inc. | Billet heating furnace with pressurized entrance seal |
| CN2410303Y (en) * | 2000-03-15 | 2000-12-13 | 彭景尧 | Multichamber continuous annealing furnace |
-
2005
- 2005-06-30 CN CNB2005100273404A patent/CN1303226C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309171A (en) * | 1980-05-27 | 1982-01-05 | Granco Equipment, Inc. | Billet heating furnace with pressurized entrance seal |
| CN2410303Y (en) * | 2000-03-15 | 2000-12-13 | 彭景尧 | Multichamber continuous annealing furnace |
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| Publication number | Publication date |
|---|---|
| CN1718766A (en) | 2006-01-11 |
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Granted publication date: 20070307 |