CN113249677A - Controllable atmosphere well type nitriding furnace - Google Patents
Controllable atmosphere well type nitriding furnace Download PDFInfo
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- CN113249677A CN113249677A CN202110694677.XA CN202110694677A CN113249677A CN 113249677 A CN113249677 A CN 113249677A CN 202110694677 A CN202110694677 A CN 202110694677A CN 113249677 A CN113249677 A CN 113249677A
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- furnace
- portal frame
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- transmission
- translation mechanism
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- 238000005121 nitriding Methods 0.000 title claims abstract description 28
- 230000003028 elevating effect Effects 0.000 claims abstract description 16
- 238000004320 controlled atmosphere Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 43
- 238000003825 pressing Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000009776 industrial production Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
Abstract
The invention provides a controlled atmosphere well type nitriding furnace, which enables a furnace cover to be opened and closed conveniently and quickly, is suitable for nitriding operation of a large workpiece, and meets the requirement of industrial production. It includes: the furnace shell is prefabricated in a mounting pit corresponding to the ground; a furnace lining disposed in an inner cavity of the furnace shell; the muffle and air duct assembly is arranged in an inner cavity of the furnace lining; the furnace cover is covered on the upper end opening of the muffle and air guide barrel assembly; portal frame lift translation mechanism, it includes portal frame, elevating system, translation mechanism, the both sides stand of portal frame supports in the track that corresponds the side through translation mechanism respectively, translation mechanism drive portal frame is whole to be set up along the track translation, be provided with elevating system on the crossbeam of portal frame, elevating system's lower part output is connected the bell, elevating system drives the bell elevating movement.
Description
Technical Field
The invention relates to the technical field of nitriding furnace structures, in particular to a controllable atmosphere shaft type nitriding furnace.
Background
The nitriding furnace comprises a cover type nitriding furnace and a well type nitriding furnace, when in actual use, a furnace shell of the well type nitriding furnace is arranged below the ground, the upper part of the furnace shell is covered with the furnace cover, the furnace cover needs external hoisting equipment for auxiliary installation when being opened or closed, and the hoisting equipment is used temporarily, so that the diameter of the existing well chamber nitriding furnace is relatively small, the maximum diameter of an inner cavity is only about 2 meters generally, the maximum charging amount is limited, and the use requirement of nitriding of some larger workpieces cannot be met; however, once the diameter of the inner cavity of the existing well type nitriding furnace is enlarged, the furnace cover cannot be normally opened or closed, so that a large-diameter well type nitriding furnace which can facilitate the opening and closing of the furnace cover is urgently needed.
Disclosure of Invention
Aiming at the problems, the invention provides a controlled atmosphere well type nitriding furnace, which enables a furnace cover to be opened and closed conveniently and quickly, is suitable for nitriding operation of larger workpieces and meets the requirement of industrial production.
Controllable atmosphere well nitriding furnace, its characterized in that, it includes:
the furnace shell is prefabricated in a mounting pit corresponding to the ground;
a furnace lining disposed in an inner cavity of the furnace shell;
the muffle and air duct assembly is arranged in an inner cavity of the furnace lining;
the furnace cover is covered on the upper end opening of the muffle and air guide barrel assembly;
portal frame lift translation mechanism, it includes portal frame, elevating system, translation mechanism, the both sides stand of portal frame supports in the track that corresponds the side through translation mechanism respectively, translation mechanism drive portal frame is whole to be set up along the track translation, be provided with elevating system on the crossbeam of portal frame, elevating system's lower part output is connected the bell, elevating system drives the bell elevating movement.
It is further characterized in that:
the rails on two sides are respectively arranged on two sides of one diameter of the furnace shell and used for supporting and guiding the upright columns on two sides of the portal frame;
the lower parts of the upright columns on two sides of the portal frame are fixedly provided with guide wheel sets, at least one wheel of each guide wheel set is respectively connected with a corresponding driving motor, the driving motors and the wheels are combined to form a translation mechanism, the driving motors on two sides synchronously act, and the portal frame integrally translates along a track;
the beam is provided with two groups of parallel lifting driving rods, the upper part of each group of lifting driving rods is provided with a transmission assembly, the two groups of lifting driving rods are arranged at two sides of the furnace cover with the same diameter, and the two groups of transmission assemblies are respectively connected with a power transmission end through transmission connecting rods;
the power output end comprises a lifting motor and a first transmission reduction gearbox, the output end of the lifting motor is connected with the input end of the first transmission reduction gearbox, the output ends of two sides of the first transmission reduction gearbox are respectively connected with transmission connecting rods at corresponding positions, the outer end of each transmission connecting rod is connected with a second transmission reduction gearbox at a corresponding position, the output end of the second transmission reduction gearbox is connected with a transmission nut, the transmission nut is in threaded connection with the upper screw rod end of a lifting driving rod, and the lifting motor synchronously drives the lifting driving rods at two sides and drives the furnace cover to lift;
every the stand inboard still is provided with perpendicular to the slide rail, and the outside of direction briquetting is inlayed and is adorned in perpendicular direction slide rail, the inboard pressure equipment of direction briquetting in the corresponding side outer fringe of bell, the direction briquetting pressure of both sides attaches in the corresponding side outer fringe of bell, ensures that the bell in-process can not take place to deflect, guarantees that follow-up bell lid dress position is accurate reliable.
After adopting above-mentioned technical scheme, the bell goes up and down through elevating system, later the portal frame makes the bell break away from the face area of muffle and air duct subassembly under translation mechanism's drive, then carry out getting of corresponding work piece and put, because the bell passes through the portal frame lift translation mechanism drive lift operation rather than matching, it makes the inner chamber diameter of whole well type nitriding furnace can expand 4 meters or even bigger, it makes the convenient and fast that opens and shuts of bell, and be applicable to the nitriding operation of great work piece, satisfy the industrial production demand.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged view of the part A of the present invention;
FIG. 3 is a schematic view of the enlarged structure at B of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the furnace comprises a furnace shell 10, a furnace lining 20, a muffle and air guide cylinder assembly 30, a furnace cover 40, a hoisting seat 41, a portal frame 50, a vertical column 51, a cross beam 52, a vertical slide rail 53, a guide pressing block 54, an oblique beam 55, a lifting mechanism 60, a lifting drive rod 61, an upper screw rod end 62, a second transmission reduction gearbox 63, a transmission connecting rod 64, a lifting motor 65, a first transmission reduction gearbox 66, a chain 67, a translation mechanism 70, a guide wheel group 71, a drive motor 72, a lower convex lateral movement prevention bulge 73 and a rail 80.
Detailed Description
A controlled atmosphere pit type nitriding furnace is shown in a figure 1-figure 3 and comprises a furnace shell 10, a furnace lining 20, a muffle and air duct assembly 30, a furnace cover 40 and a portal frame lifting and translating mechanism; the furnace shell 10 is prefabricated in a corresponding mounting pit on the ground; the furnace lining 20 is arranged in the inner cavity of the furnace shell 10; the muffle and air duct assembly 30 is arranged in the inner cavity of the furnace lining; the furnace cover 40 is covered on the upper end opening of the muffle and air duct assembly 30;
the portal frame lifting and translating mechanism comprises a portal frame 50, a lifting mechanism 60 and a translating mechanism 70, wherein two side columns 51 of the portal frame 50 are respectively supported on a rail 80 of a corresponding side through the translating mechanism 70, the translating mechanism 70 drives the whole portal frame 50 to translate along the rail 80, the lifting mechanism 60 is arranged on a cross beam 52 of the portal frame 50, the lower output end of the lifting mechanism 60 is connected with a furnace cover 40, and the lifting mechanism 60 drives the furnace cover 40 to lift.
In the specific implementation: the upright posts 51 on two sides of the portal frame 50 are supported on the rails 80 on two sides, the rails 80 on two sides are respectively arranged on two sides of one diameter of the furnace shell 10, the guide wheel sets 71 are fixedly arranged on the lower parts of the upright posts 51 on two sides of the portal frame 50, at least one wheel of each guide wheel set 71 is respectively connected with a corresponding driving motor 72, the driving motors 72 and the guide wheel sets are combined to form a translation mechanism, the driving motors 72 on two sides synchronously act, and the portal frame 50 integrally translates along the rails 80; the guide wheel set 71 is provided with a lower convex side shift prevention bulge 73, so that the guide of the guide wheel set 71 is accurate and reliable;
the beam 52 is provided with two groups of parallel lifting drive rods 61, the upper part of each group of lifting drive rods 61 is an upper screw rod end 62 after penetrating through the guide hole, the two groups of lifting drive rods 61 are arranged at two sides of the same diameter of the furnace cover 40, the two upper screw rod ends 62 are respectively in threaded connection with transmission nuts (shielded in the figure and belonging to a conventional screw rod nut connection mechanism), the transmission nuts are connected with the output end of the second transmission reduction gearbox 63 through a transmission structure, the transmission structure is a gear transmission structure, the input end of the second transmission reduction gearbox 63 is connected with the power output end through a transmission connecting rod 64, the power output end comprises a lifting motor 65 and a first transmission reduction gearbox 66, the output end of the lifting motor 65 is connected with the input end of the first transmission reduction gearbox 66, the output ends at two sides of the first transmission reduction gearbox 66 are respectively connected with the transmission connecting rod 64 at the corresponding position, the outer end of each transmission connecting rod 64 is connected with the second transmission reduction gearbox 63 at the corresponding position, the transmission nut is in threaded connection with an upper screw rod end 62 of the lifting driving rod 61, the lifting motor 65 synchronously drives the lifting driving rods 61 on the two sides to drive the furnace cover 40 to move up and down, and in the specific implementation process, the lower end of the lifting driving rod 61 hoists the hoisting seat 41 at the corresponding position of the furnace cover through the chain 67;
the inner side of each upright post 51 is also provided with a vertical slide rail 53, the outer side of each guide pressing block 54 is embedded in the vertical guide slide rail 53, the inner side of each guide pressing block 54 is pressed on the outer edge of the corresponding side of the furnace cover 40, and the guide pressing blocks 54 on the two sides are pressed on the outer edge of the corresponding side of the furnace cover 40, so that the furnace cover 40 is prevented from deflecting in the lifting process, and the covering position of the subsequent furnace cover 40 is ensured to be accurate and reliable;
the two vertical columns 51 and the cross beam 52 are reinforced by the oblique beam 55, so that the whole portal frame 50 is stable and reliable.
The working principle is as follows: the bell is gone up and down through stating the lift actuating lever of power take off end drive both sides, later the portal frame makes the bell break away from the face area of muffle and air duct subassembly under translation mechanism's drive, then carries out getting of corresponding work piece and puts, because the bell passes through the portal frame lift translation mechanism drive lift operation rather than matching, it makes the inner chamber diameter of whole well formula nitriding furnace can expand 4 meters or even bigger, and then is applicable to the nitriding operation of great work piece, satisfies the industrial production demand.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. Controllable atmosphere well nitriding furnace, its characterized in that, it includes:
the furnace shell is prefabricated in a mounting pit corresponding to the ground;
a furnace lining disposed in an inner cavity of the furnace shell;
the muffle and air duct assembly is arranged in an inner cavity of the furnace lining;
the furnace cover is covered on the upper end opening of the muffle and air guide barrel assembly;
portal frame lift translation mechanism, it includes portal frame, elevating system, translation mechanism, the both sides stand of portal frame supports in the track that corresponds the side through translation mechanism respectively, translation mechanism drive portal frame is whole to be set up along the track translation, be provided with elevating system on the crossbeam of portal frame, elevating system's lower part output is connected the bell, elevating system drives the bell elevating movement.
2. A controlled atmosphere shaft nitriding furnace according to claim 1, characterized in that: the rails on two sides are respectively arranged on two sides of one diameter of the furnace shell, and the rails on two sides are used for supporting and guiding the upright columns on two sides of the portal frame.
3. A controlled atmosphere shaft nitriding furnace according to claim 2, characterized in that: the lower part of the stand columns on two sides of the portal frame is fixedly provided with a guide wheel set, at least one wheel of the guide wheel set is respectively connected with a corresponding driving motor, and the driving motor and the wheel are combined to form a translation mechanism.
4. A controlled atmosphere shaft nitriding furnace according to claim 1, characterized in that: the furnace cover is characterized in that two groups of parallel lifting driving rods are arranged on the beam, transmission assemblies are arranged on the upper portions of the lifting driving rods, the two groups of lifting driving rods are arranged on the two sides of the same diameter of the furnace cover, and power conveying ends are connected between the two groups of transmission assemblies through transmission connecting rods respectively.
5. A controlled atmosphere shaft nitriding furnace according to claim 1, characterized in that: the power output end comprises a lifting motor and a first transmission reduction gearbox, the output end of the lifting motor is connected with the input end of the first transmission reduction gearbox, the output ends of the two sides of the first transmission reduction gearbox are respectively connected with transmission connecting rods at corresponding positions, the outer end of each transmission connecting rod is connected with a second transmission reduction gearbox at corresponding positions, the output end of the second transmission reduction gearbox is connected with a transmission nut, and the transmission nut is in threaded connection with the upper screw rod end of the lifting driving rod.
6. A controlled atmosphere shaft nitriding furnace according to claim 1, characterized in that: and the inner side of each upright post is also provided with a vertical slide rail, the outer side of each guide pressing block is embedded in the vertical guide slide rail, the inner side of each guide pressing block is pressed on the outer edge of the corresponding side of the furnace cover, and the guide pressing blocks on the two sides are pressed on the outer edge of the corresponding side of the furnace cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110694677.XA CN113249677A (en) | 2021-06-22 | 2021-06-22 | Controllable atmosphere well type nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110694677.XA CN113249677A (en) | 2021-06-22 | 2021-06-22 | Controllable atmosphere well type nitriding furnace |
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| Publication Number | Publication Date |
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| CN113249677A true CN113249677A (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110694677.XA Pending CN113249677A (en) | 2021-06-22 | 2021-06-22 | Controllable atmosphere well type nitriding furnace |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4289944A (en) * | 1977-12-19 | 1981-09-15 | Reese Thurston F | Apparatus for reheating, storing and conveying cast bars |
| CN201268713Y (en) * | 2008-10-15 | 2009-07-08 | 郭嘉毅 | Large-sized well type furnace cover running mechanism |
| CN203185349U (en) * | 2013-04-03 | 2013-09-11 | 云南聚焦科技有限公司 | Inspection shaft type furnace lid opening and closing mechanical arm for smoke guiding vehicle |
| WO2016103195A1 (en) * | 2014-12-24 | 2016-06-30 | Outotec (Finland) Oy | A sensing device for determining an operational condition in a molten bath of a top-submerged lancing injector reactor system |
| CN206281354U (en) * | 2016-11-24 | 2017-06-27 | 重庆金凯特殊钢制品有限公司 | Furnace cover lifting translates controlling organization |
| CN209816251U (en) * | 2019-04-28 | 2019-12-20 | 南京宝钻热处理有限公司 | Vacuum well type gas nitriding furnace with lifting structure |
| CN216404511U (en) * | 2021-06-22 | 2022-04-29 | 天龙科技炉业(无锡)有限公司 | Controllable atmosphere well type nitriding furnace |
-
2021
- 2021-06-22 CN CN202110694677.XA patent/CN113249677A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4289944A (en) * | 1977-12-19 | 1981-09-15 | Reese Thurston F | Apparatus for reheating, storing and conveying cast bars |
| CN201268713Y (en) * | 2008-10-15 | 2009-07-08 | 郭嘉毅 | Large-sized well type furnace cover running mechanism |
| CN203185349U (en) * | 2013-04-03 | 2013-09-11 | 云南聚焦科技有限公司 | Inspection shaft type furnace lid opening and closing mechanical arm for smoke guiding vehicle |
| WO2016103195A1 (en) * | 2014-12-24 | 2016-06-30 | Outotec (Finland) Oy | A sensing device for determining an operational condition in a molten bath of a top-submerged lancing injector reactor system |
| CN206281354U (en) * | 2016-11-24 | 2017-06-27 | 重庆金凯特殊钢制品有限公司 | Furnace cover lifting translates controlling organization |
| CN209816251U (en) * | 2019-04-28 | 2019-12-20 | 南京宝钻热处理有限公司 | Vacuum well type gas nitriding furnace with lifting structure |
| CN216404511U (en) * | 2021-06-22 | 2022-04-29 | 天龙科技炉业(无锡)有限公司 | Controllable atmosphere well type nitriding furnace |
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