CN114196904A - Medium frequency induction carburizing furnace - Google Patents
Medium frequency induction carburizing furnace Download PDFInfo
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- CN114196904A CN114196904A CN202111396861.2A CN202111396861A CN114196904A CN 114196904 A CN114196904 A CN 114196904A CN 202111396861 A CN202111396861 A CN 202111396861A CN 114196904 A CN114196904 A CN 114196904A
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- 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
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Abstract
The invention relates to the technical field of carburizing furnaces, in particular to a medium-frequency induction carburizing furnace, which comprises a furnace body, wherein the upper end of the outer surface of the furnace body is rotatably connected with a furnace cover, the bottom end of the furnace body is fixedly connected with a plurality of groups of supporting frames, the inner wall of the furnace body is provided with a heating element, the outer surface of the heating element is fixedly connected with an outer lining, the outer surface of the outer lining is fixedly connected with the inner wall of the furnace body, the inner wall of the heating element is fixedly connected with an inner lining, the bottom end of the inner lining is fixedly connected with the inner wall of the bottom end of the furnace body, the bottom end of the inner wall of the furnace body is provided with a primary groove, the inner wall of the primary groove is movably connected with a charging mechanism, and a knocking mechanism is arranged in the charging mechanism. The surface of the spherical workpiece is oxidized and decarburized, so that a layer of oxide skin is formed on the surface of the spherical workpiece, and carburization is influenced.
Description
Technical Field
The invention relates to the technical field of carburizing furnaces, in particular to a medium-frequency induction carburizing furnace.
Background
Carburizing means a process of infiltrating carbon atoms into a surface layer of steel, and is a process of making a low-carbon steel piece have a surface layer of high-carbon steel, and then quenching and low-temperature tempering are carried out to make the surface layer of the steel piece have high hardness and wear resistance, while the central part of the steel piece still maintains the toughness and plasticity of the low-carbon steel, so that it is necessary to carburize the steel piece in order to maintain the toughness and plasticity of the low-carbon steel.
The patent numbers are: CN202010551919.5 discloses a medium frequency induction carburizing furnace; comprises a furnace body; the cavity rotating shaft is inserted into the inner lining furnace cavity, and the bottom end of the cavity rotating shaft is rotatably connected to the inner wall of the bottom end of the furnace cavity through a bearing; the bottom end of the communicating air pipe is injected with carburizing gas through an air duct; a plurality of movable connecting rods are uniformly arranged on the outer wall of the cavity rotating shaft in the circumferential direction, and a friction net cylinder is connected onto the plurality of movable connecting rods; a plurality of arc-shaped grooves are uniformly formed in the upper end part and the lower end part of the annular mounting cylinder; spherical workpieces are rotationally clamped in the arc-shaped grooves of the two adjacent annular mounting cylinders, and a spring is arranged between the two adjacent annular mounting cylinders; a plurality of inserting columns are inserted into the cavity wall of the workpiece mounting net cylinder in a vertical direction, a locking ring is movably arranged at the top end of the workpiece mounting net cylinder, and the bottom ends of the inserting columns penetrate through the workpiece mounting net cylinder and are inserted into the supporting plate; the carburization of the spherical workpiece is more uniform, and the carburization effect of the spherical workpiece is further improved.
At present, oxidation and decarburization can be caused due to overhigh temperature and overlong heat preservation time in the carburizing process, so that a layer of oxide skin is formed on the surface of a workpiece, and the carburization is influenced.
Therefore, a medium-frequency induction carburizing furnace is provided.
Disclosure of Invention
The invention aims to provide a medium-frequency induction carburizing furnace, which mainly solves the problem that oxidation and decarburization are caused due to overhigh temperature and overlong heat preservation time in the carburizing process, so that a layer of oxide skin is formed on the surface of a workpiece to influence carburization.
In order to achieve the purpose, the invention provides the following technical scheme:
the medium-frequency induction carburizing furnace comprises a furnace body, wherein the upper end of the outer surface of the furnace body is rotatably connected with a furnace cover, and the furnace cover is used for preserving heat of a workpiece in the furnace body; the bottom end of the furnace body is fixedly connected with a plurality of groups of supporting frames which are used for supporting the furnace body; the heating element is arranged on the inner wall of the furnace body, and the heating element can enable the interior of the furnace body to reach a certain temperature for carburizing the surface of the workpiece; the heating element is electrically connected with an external power supply, an outer lining is fixedly connected to the outer surface of the heating element, the outer surface of the outer lining is fixedly connected with the inner wall of the furnace body, an inner lining is fixedly connected to the inner wall of the heating element, the bottom end of the inner lining is fixedly connected with the inner wall of the bottom end of the furnace body, and the outer lining and the inner lining are arranged to fix the heating element; a primary groove is formed in the bottom end of the inner wall of the furnace body, a charging mechanism is movably connected to the inner wall of the primary groove, and the charging mechanism is used for clamping workpieces; the bottom end of the inner wall of the primary groove is provided with a secondary groove, the inner wall of the secondary groove is rotatably connected with a rotating mechanism, and the rotating mechanism is used for providing power;
the charging mechanism comprises a base, a fixed seat, an arc-shaped groove, a top cover, a screw rod, a rotating shaft and a gear, wherein the inner wall of the primary groove is movably connected with the base, and the base is used for clamping the gear; the interior of the base is of a hollow structure, a plurality of groups of gears are arranged on the inner wall of the base, and the gears are used for transmitting power; the outer surfaces of a plurality of groups of gears are mutually meshed, the inner walls of the gears are fixedly connected with rotating shafts, a plurality of groups of beating mechanisms are vertically arranged on the outer surfaces of the rotating shafts in parallel, and the beating mechanisms can be driven to beat the surface of a workpiece through the rotating shafts so as to remove oxide skin on the surface of the workpiece, so that the phenomenon that the surface of the workpiece is oxidized and decarburized due to overhigh temperature and overlong heat preservation time in the carburization process is prevented, and a layer of oxide skin is formed on the surface of the workpiece to influence carburization;
the upper end of the rotating shaft penetrates through the upper end of the base, the outer surface of the upper end of the rotating shaft is rotatably connected with the top cover through a bearing, the other end of the rotating shaft penetrates through the bottom end of the base, the outer surface of the bottom end of the rotating shaft is rotatably connected with the inner wall of the base through a bearing, and the bearing is arranged to reduce the abrasion of the surface of the rotating shaft, so that the surface abrasion of the surface of the rotating shaft is prevented from being increased due to high temperature, a beating mechanism is prevented from swinging in the rotating process, certain noise can be generated, and certain damage can be caused to the surface of a workpiece;
a plurality of groups of fixed seats are vertically arranged between the base and the top cover in parallel and are used for clamping spherical workpieces; a plurality of groups of arc-shaped grooves are uniformly formed between every two adjacent groups of fixing seats, spherical workpieces are placed in the arc-shaped grooves, a plurality of groups of screw rods are arranged at the upper end of the top cover, and the screw rods are used for fixing the base, the fixing seats and the top cover, so that the spherical workpieces are prevented from falling off due to scattering in the moving process; the screw rod runs through the lower extreme of top cap and the upper end of fixing base according to this and with the upper end threaded connection of base, the surface of screw rod and the top threaded connection who is located the top cap have lock nut, be used for locking screw rod through setting up lock nut.
Preferably, the rotating mechanism comprises a motor, a transmission rod, a rotating disc and a first-level connecting rod, the motor is fixedly connected to the bottom end of the furnace body and located at the center, and the motor is arranged to drive the transmission rod to rotate; one end of an output shaft of the motor is fixedly connected with a transmission rod which is used for driving the rotating disc to rotate; the top end of the transmission rod penetrates through the inner wall of the secondary groove and is fixedly connected with a rotating disc, and the rotating disc is used for driving the primary connecting rod to rotate; the outer surface of the rotating disc is rotatably connected with the inner wall of the second-stage groove, the cross-shaped groove is formed in the upper end of the rotating disc, the inner wall of the cross-shaped groove is slidably connected with a first-stage connecting rod, the top end of the first-stage connecting rod is fixedly connected with the bottom end of a rotating shaft located at the center of the base, the first-stage connecting rod is used for driving the rotating shaft to rotate, and then the beating mechanism is driven to rotate to clean oxide skins on the surfaces of workpieces.
Preferably, the beating mechanism comprises a secondary connecting rod, a tertiary groove, a spring, a guide rod and an impact block, a plurality of groups of secondary connecting rods are uniformly arranged on the outer surface of the rotating shaft in an annular mode, and the secondary connecting rods are used for driving the impact block to rotate; the two-stage connecting rods are arranged in parallel in the vertical direction and correspond to the spherical workpieces, three-stage grooves are formed in one ends, away from the rotating shaft, of the two-stage connecting rods, springs are horizontally and fixedly connected to the inner walls of the three-stage grooves, and the springs are used for the guide rods to stretch and move; the other end of the spring is fixedly connected with a guide rod, the rotating diameter of the impact block can be adjusted through the guide rod, and the impact block can play a certain buffering role in cooperation with the spring when being extruded and impacted with the surface of the spherical workpiece, so that the surface of the spherical workpiece is prevented from being deformed to a certain extent due to the fact that the surface of the spherical workpiece is always impacted; the outer surface of the guide rod is connected with the inner wall of the three-level groove in a sliding mode, the other end of the guide rod is fixedly connected with an impact block, the outer surface of the impact block is connected with the outer surface of the spherical workpiece in a sliding mode, the spherical workpiece can be driven to rotate to a certain degree through the impact block, and meanwhile oxide skin on the surface of the spherical workpiece can be cleaned.
Preferably, the furnace body further comprises a cover opening mechanism, the cover opening mechanism comprises a fixed plate, a fixed frame, a connecting plate, a fixed rod and a sleeve, the fixed plate is fixedly connected to the outer surface of the furnace body, and the fixed plate is used for fixedly supporting the power unit; the upper end of the fixed plate is fixedly connected with a power unit which is used for driving the furnace cover to turn over; the outer surface of the furnace cover and the upper part of the fixed plate are fixedly connected with a connecting plate, and the connecting plate is used for driving the furnace cover to turn over by a power unit; the two ends of the connecting plate are hinged with fixing frames, and the fixing frames are used for fixing the connecting plate, so that the connecting plate can be assisted to rotate; the other end of the fixing frame is fixedly connected with the outer surface of the furnace body, one end, far away from the furnace cover, of the connecting plate is fixedly connected with a fixing rod, a sleeve is sleeved on the outer surface of the fixing rod, and the sleeve is sleeved on the surface of the fixing rod to prevent the power unit from knotting during expansion and contraction, so that the furnace cover cannot be turned over; the outer surface of the lower part of the sleeve is fixedly connected with the upper end of the power unit.
Preferably, the upper end of the top cover is fixedly connected with a plurality of lifting lugs, and the lifting lugs are used for mechanically moving the loading mechanism.
Preferably, the bearing is a SIAIF high-temperature-resistant bearing, so that the bearing is prevented from being deformed due to overhigh temperature in the furnace body.
Preferably, the power unit is set as a hydraulic cylinder and is used for enabling the furnace cover to stably work when being turned over.
Preferably, the inner wall of the arc-shaped groove is fixedly connected with a plurality of bumps, and the bumps are arranged for better cleaning oxide skin on the surface of the spherical workpiece; a certain gap is reserved between the bump and the spherical workpiece, and the spherical workpiece can rotate to a certain extent when being impacted by the certain gap.
Preferably, the bump is provided with a hemispherical structure for reducing the contact surface between the bump and the spherical workpiece, so that the surface carburization of the spherical workpiece is more uniform.
Preferably, the material of the lug is made of a material with a melting point higher than that of the spherical workpiece, so that the lug can be prevented from being extruded by the spherical workpiece to deform under the high-temperature condition due to long-time use, and the spherical workpiece can be prevented from falling from the fixed seat.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the beating mechanism is arranged for removing oxide skin on the surface of the spherical workpiece, so that the phenomenon that oxidation and decarburization are caused on the surface of the spherical workpiece due to overhigh temperature and overlong heat preservation time in the carburizing process is prevented, and a layer of oxide skin is formed on the surface of the spherical workpiece to influence carburization; the bearing is used for reducing the abrasion of the surface of the rotating shaft, the surface abrasion of the surface of the rotating shaft is prevented from being increased due to high temperature, the beating mechanism swings in the rotating process, certain noise can be generated, and certain damage can be caused to the surface of the spherical workpiece.
2. According to the invention, the rotating diameter of the impact block can be adjusted by arranging the guide rod, and the impact block can play a certain buffering role by matching with the spring when being extruded and impacted with the surface of the spherical workpiece, so that the surface of the spherical workpiece is prevented from being deformed to a certain extent due to always impacting the surface of the spherical workpiece; can drive spherical work piece through setting up the striking piece and carry out certain rotation, simultaneously, can clear up the cinder on spherical work piece surface.
3. In the invention, the bumps are arranged for better cleaning the oxide skin on the surface of the spherical workpiece; a certain gap is reserved between the lug and the spherical workpiece, so that the spherical workpiece can rotate to a certain extent when being impacted; the convex block is arranged to be of a hemispherical structure, so that the contact surface between the convex block and the spherical workpiece is reduced, and the surface carburization of the spherical workpiece is more uniform; the material through setting up the lug adopts and makes than spherical work piece melting point's material, can prevent that the lug from receiving the extrusion of spherical work piece to take place to warp because of using for a long time under the high temperature condition, leads to spherical work piece to drop from the fixing base.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a top view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at B in accordance with the present invention;
fig. 6 is a schematic view of the structure of the rotating disc and the primary connecting rod of the present invention.
In the figure: the furnace body 1, a primary groove 101, a secondary groove 102, the furnace cover 2, a support frame 3, a rotating mechanism 4, a motor 41, a transmission rod 42, a rotating disc 43, a primary connecting rod 44, a heating element 5, an inner lining 51, an outer lining 52, a charging mechanism 6, a base 61, a fixed seat 62, an arc-shaped groove 63, a projection 631, a top cover 64, a lifting lug 641, a screw 65, a locking nut 66, a rotating shaft 67, a gear 68, a beating mechanism 7, a secondary connecting rod 71, a tertiary groove 72, a spring 73, a guide rod 74, an impact block 75, a cover lifting mechanism 8, a fixed plate 81, a fixed bracket 82, a connecting plate 83, a fixed rod 84, a sleeve 85, a spherical workpiece 9 and a hydraulic cylinder 10.
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.
Referring to fig. 1 to 6, the present invention provides a technical solution:
a medium frequency induction carburizing furnace comprises a furnace body 1, wherein the upper end of the outer surface of the furnace body 1 is rotatably connected with a furnace cover 2, and the furnace cover 2 is used for preserving heat of a workpiece in the furnace body 1; the bottom end of the furnace body 1 is fixedly connected with a plurality of groups of supporting frames 3, and the supporting frames 3 are used for supporting the furnace body 1; the heating element 5 is arranged on the inner wall of the furnace body 1, and the heating element 5 can enable the interior of the furnace body 1 to reach a certain temperature for carburizing the surface of a workpiece; the heating element 5 is electrically connected with an external power supply, the outer surface of the heating element 5 is fixedly connected with an outer lining 52, the outer surface of the outer lining 52 is fixedly connected with the inner wall of the furnace body 1, the inner wall of the heating element 5 is fixedly connected with an inner lining 51, the bottom end of the inner lining 51 is fixedly connected with the inner wall of the bottom end of the furnace body 1, and the outer lining 52 and the inner lining 51 are arranged for fixing the heating element 5; the bottom end of the inner wall of the furnace body 1 is provided with a primary groove 101, the inner wall of the primary groove 101 is movably connected with a charging mechanism 6, and the charging mechanism 6 is arranged for clamping a workpiece; the bottom end of the inner wall of the first-stage groove 101 is provided with a second-stage groove 102, the inner wall of the second-stage groove 102 is rotatably connected with a rotating mechanism 4, and the rotating mechanism 4 is used for providing power;
the charging mechanism 6 comprises a base 61, a fixed seat 62, an arc-shaped groove 63, a top cover 64, a screw 65, a rotating shaft 67 and a gear 68, wherein the inner wall of the primary groove 101 is movably connected with the base 61, and the base 61 is arranged for clamping the gear 68; the interior of the base 61 is a hollow structure, the inner wall of the base 61 is provided with a plurality of groups of gears 68, and the gears 68 are used for transmitting power; the outer surfaces of the multiple groups of gears 68 are mutually meshed, the inner walls of the gears 68 are fixedly connected with the rotating shafts 67, the multiple groups of beating mechanisms 7 are vertically arranged on the outer surfaces of the rotating shafts 67 in parallel, and the beating mechanisms 7 can be driven to beat the surface of a workpiece by arranging the rotating shafts 67 so as to remove oxide skin on the surface of the workpiece and prevent the surface of the workpiece from being oxidized and decarbonized due to overhigh temperature and overlong heat preservation time in the carburizing process, so that a layer of oxide skin is formed on the surface of the workpiece to influence carburization;
the upper end of the rotating shaft 67 penetrates through the upper end of the base 61, the outer surface of the upper end of the rotating shaft 67 is rotatably connected with the top cover 64 through a bearing, the other end of the rotating shaft 67 penetrates through the bottom end of the base 61, the outer surface of the bottom end of the rotating shaft 67 is rotatably connected with the inner wall of the base 61 through a bearing, and the bearing is arranged to reduce the abrasion of the surface of the rotating shaft 67, so that the surface abrasion of the surface of the rotating shaft 67 is prevented from being increased due to high temperature, the beating mechanism 7 is prevented from swinging in the rotating process, certain noise can be generated, and certain damage can be caused to the surface of a workpiece;
a plurality of groups of fixing seats 62 are vertically arranged between the base 61 and the top cover 64 in parallel, and the fixing seats 62 are used for clamping the spherical workpiece 9; a plurality of groups of arc-shaped grooves 63 are uniformly formed between two adjacent groups of fixing seats 62, spherical workpieces 9 are placed in the plurality of groups of arc-shaped grooves 63, a plurality of groups of screw rods 65 are arranged at the upper end of the top cover 64, and the screw rods 65 are used for fixing the base 61, the fixing seats 62 and the top cover 64, so that the spherical workpieces 9 are prevented from falling off due to scattering in the moving process; the lower extreme that multiunit screw rod 65 ran through top cap 64 in proper order and the upper end of fixing base 62 and with the upper end threaded connection of base 61, the surface of screw rod 65 just is located the top threaded connection of top cap 64 and has lock nut 66, is used for locking screw rod 65 through setting up lock nut 66.
As an embodiment of the present invention, the rotating mechanism 4 comprises a motor 41, a transmission rod 42, a rotating disc 43 and a first-level connecting rod 44, the motor 41 is fixedly connected to the bottom end of the furnace body 1 and located at the central position, and the motor 41 is arranged to drive the transmission rod 42 to rotate; one end of an output shaft of the motor 41 is fixedly connected with a transmission rod 42, and the transmission rod 42 is used for driving the rotating disc 43 to rotate; the top end of the transmission rod 42 penetrates through the inner wall of the secondary groove 102 and is fixedly connected with a rotating disc 43, and the rotating disc 43 is used for driving the primary connecting rod 44 to rotate; the outer surface of the rotating disc 43 is rotatably connected with the inner wall of the second-stage groove 102, a cross-shaped groove is formed in the upper end of the rotating disc 43, the inner wall of the cross-shaped groove is slidably connected with the first-stage connecting rod 44, the top end of the first-stage connecting rod 44 is fixedly connected with the bottom end of the rotating shaft 67 located at the center of the base 61, the first-stage connecting rod 44 is used for driving the rotating shaft 67 to rotate, and then the beating mechanism 7 is driven to rotate to clean oxide skin on the surface of a workpiece.
As an embodiment of the present invention, the rapping mechanism 7 includes a secondary connecting rod 71, a tertiary groove 72, a spring 73, a guide rod 74 and an impact block 75, a plurality of sets of secondary connecting rods 71 are uniformly arranged in a ring shape on the outer surface of the rotating shaft 67, and the secondary connecting rods 71 are arranged to drive the impact block 75 to rotate; a plurality of groups of second-stage connecting rods 71 are arranged in parallel in the vertical direction and correspond to the spherical workpiece 9, a third-stage groove 72 is formed in one end, away from the rotating shaft 67, of each second-stage connecting rod 71, a spring 73 is horizontally and fixedly connected to the inner wall of each third-stage groove 72, and the springs 73 are used for enabling the guide rods 74 to move in a telescopic mode; the other end of the spring 73 is fixedly connected with a guide rod 74, the rotating diameter of the impact block 75 can be adjusted by arranging the guide rod 74, and the impact block 75 can play a certain buffering role by being matched with the spring 73 when being extruded and impacted with the surface of the spherical workpiece 9, so that the surface of the spherical workpiece 9 is prevented from being deformed to a certain extent due to the fact that the surface of the spherical workpiece 9 is impacted all the time; the outer surface of the guide rod 74 is in sliding connection with the inner wall of the three-stage groove 72, the other end of the guide rod 74 is fixedly connected with an impact block 75, the outer surface of the impact block 75 is in sliding connection with the outer surface of the spherical workpiece 9, the impact block 75 can drive the spherical workpiece 9 to rotate to a certain degree through arrangement, and meanwhile, oxide skin on the surface of the spherical workpiece 9 can be cleaned.
As an embodiment of the invention, the furnace body further comprises a cover opening mechanism 8, wherein the cover opening mechanism 8 comprises a fixing plate 81, a fixing frame 82, a connecting plate 83, a fixing rod 84 and a sleeve 85, the fixing plate 81 is fixedly connected to the outer surface of the furnace body 1, and the fixing plate 81 is arranged for fixedly supporting the power unit; the upper end of the fixed plate 81 is fixedly connected with a power unit which is used for driving the furnace cover 2 to turn over; a connecting plate 83 is fixedly connected to the outer surface of the furnace cover 2 and above the fixing plate 81, and the connecting plate 83 is used for driving the furnace cover 2 to turn over by a power unit; the two ends of the connecting plate 83 are hinged with fixing frames 82, and the fixing frames 82 are used for fixing the connecting plate 83, so that the connecting plate 83 can be assisted to rotate; the other end of the fixing frame 82 is fixedly connected with the outer surface of the furnace body 1, one end of the connecting plate 83, which is far away from the furnace cover 2, is fixedly connected with a fixing rod 84, a sleeve 85 is sleeved on the outer surface of the fixing rod 84, and the sleeve 85 is sleeved on the surface of the fixing rod 84 to prevent the power unit from knotting during expansion and contraction, so that the furnace cover 2 cannot be turned over; the lower outer surface of the sleeve 85 is fixedly connected with the upper end of the power unit.
In one embodiment of the present invention, a plurality of lifting lugs 641 are fixedly connected to the upper end of the top cover 64, and the lifting lugs 641 are configured to mechanically move the loading mechanism 6.
In one embodiment of the present invention, the bearings are SIAIF high temperature bearings to prevent the deformation of the bearings due to the excessive temperature in the furnace body 1.
As an embodiment of the invention, a power unit is provided as a hydraulic cylinder 10 for stable operation when the furnace lid 2 is turned.
As an embodiment of the present invention, a plurality of projections 631 are fixedly connected to the inner wall of the arc-shaped groove 63, and the projections 631 are used for better cleaning oxide skin on the surface of the spherical workpiece 9; a certain gap is left between the projection 631 and the spherical workpiece 9, and the spherical workpiece 9 can rotate to a certain extent when being impacted by the certain gap.
As an embodiment of the present invention, the projection 631 is provided in a hemispherical structure for reducing a contact surface between the projection 631 and the spherical workpiece 9, thereby making the surface carburization of the spherical workpiece 9 more uniform.
In one embodiment of the present invention, the bump 631 is made of a material having a melting point higher than that of the spherical workpiece 9, so that the bump 631 is prevented from being deformed by the spherical workpiece 9 due to long-term use under high temperature conditions, and the spherical workpiece 9 is prevented from falling from the fixing base 62.
The working principle is as follows: when a user needs to use the device, firstly, the sleeve 85 is retracted through the hydraulic cylinder 10 to drive the sleeve to move downwards, then the sleeve 85 drives the connecting plate 83 to rotate anticlockwise around the fixing frame 82 through the fixing rod 84, then the furnace cover 2 is driven to rotate through the connecting plate 83, further the furnace cover 2 is opened, then the charging mechanism 6 is placed into the furnace body 1 through the mechanical arm, the first-stage connecting rod 44 is inserted into the rotating disc 43, then the mechanical arm is moved out of the furnace body 1, then the sleeve 85 is extended out through the hydraulic cylinder 10 to drive the sleeve 85 to move upwards, the sleeve 85 drives the connecting plate 83 to rotate clockwise around the fixing frame 82 through the fixing rod 84, further the furnace cover 2 is driven to rotate through the connecting plate 83, further the furnace cover 2 is closed, and then the heating component is electrified to start to heat the spherical workpiece 9 in the furnace body 1;
when the heating process enters a heat preservation stage after the heating process is finished, starting the motor 41, driving the rotating disc 43 to rotate by the motor 41 through the transmission rod 42, driving the first-stage connecting rod 44 to rotate by the rotating disc 43, driving the rotating shaft 67 to rotate by the first-stage connecting rod 44, driving the rotating shafts 67 to synchronously rotate by the mutual meshing of the gears 68 on the outer surfaces of the rotating shafts 67, driving the impact block 75 to rotate by the rotating shaft 67 through the second-stage connecting rod 71 to extrude the surface of the spherical workpiece 9, so that oxide skin on the surface of the spherical workpiece 9 can be removed, and the phenomenon that the surface of the spherical workpiece 9 is oxidized and decarburized due to overhigh temperature and overlong heat preservation time in the carburizing process is prevented, so that a layer of oxide skin is formed on the surface of the spherical workpiece 9 to influence the carburization;
when the impact block 75 extrudes the surface of the spherical workpiece 9, the impact block 75 drives the guide rod 74 to extrude the spring 73 inwards along the inner wall of the three-stage groove 72, so that the rotating diameter of the impact block 75 can be adjusted, and the impact block 75 can play a certain buffering role by being matched with the spring 73 when being extruded and impacted with the surface of the spherical workpiece 9, so as to prevent the surface of the spherical workpiece 9 from deforming to a certain extent due to impacting the surface of the spherical workpiece 9 all the time;
after the carburizing process, the hydraulic cylinder 10 retracts to drive the sleeve 85 to move downwards, then the sleeve 85 drives the connecting plate 83 to rotate anticlockwise around the fixing frame 82 through the fixing rod 84, then the connecting plate 83 drives the furnace cover 2 to rotate, further the furnace cover 2 is opened, then the charging mechanism 6 is taken out from the furnace body 1 through the mechanical arm, and the carburizing process of the next group of workpieces is carried out.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a medium frequency induction carburizing furnace, includes furnace body (1), its characterized in that: the furnace cover (2) is rotatably connected to the upper end of the outer surface of the furnace body (1), a plurality of groups of support frames (3) are fixedly connected to the bottom end of the furnace body (1), a heating element (5) is arranged on the inner wall of the furnace body (1), the heating element (5) is electrically connected with an external power supply, an outer lining (52) is fixedly connected to the outer surface of the heating element (5), the outer surface of the outer lining (52) is fixedly connected with the inner wall of the furnace body (1), an inner lining (51) is fixedly connected to the inner wall of the heating element (5), the bottom end of the inner lining (51) is fixedly connected with the inner wall of the bottom end of the furnace body (1), a first-level groove (101) is formed in the bottom end of the inner wall of the furnace body (1), a charging mechanism (6) is movably connected to the inner wall of the first-level groove (101), a second-level groove (102) is formed in the bottom end of the inner wall of the first-level groove (101), the inner wall of the secondary groove (102) is rotatably connected with a rotating mechanism (4);
the charging mechanism (6) comprises a base (61), a fixing seat (62), an arc-shaped groove (63), a top cover (64), a screw rod (65), a rotating shaft (67) and gears (68), wherein the inner wall of the first-level groove (101) is movably connected with the base (61), the inside of the base (61) is arranged into a hollow structure, the inner wall of the base (61) is provided with a plurality of groups of gears (68), the outer surfaces of the plurality of groups of gears (68) are mutually meshed, the inner wall of each gear (68) is fixedly connected with the rotating shaft (67), the outer surfaces of the rotating shafts (67) are vertically arranged with a plurality of groups of beating mechanisms (7) in parallel, the upper end of each rotating shaft (67) penetrates through the upper end of the base (61), the outer surface of the upper end of each rotating shaft (67) is rotatably connected with the top cover (64) through a bearing, and the other end of each rotating shaft (67) penetrates through the bottom end of the base (61), just the bottom surface of axis of rotation (67) passes through the inner wall rotation connection of bearing and base (61), vertically install multiunit fixing base (62) between base (61) and top cap (64) side by side, adjacent two sets of multiunit arc wall (63), multiunit have evenly been seted up between fixing base (62) spherical work piece (9) have all been placed in arc wall (63), the upper end of top cap (64) is provided with multiunit screw rod (65), multiunit screw rod (65) run through the lower extreme of top cap (64) and the upper end of fixing base (62) according to this and with the upper end threaded connection of base (61), the surface of screw rod (65) and the top threaded connection who is located top cap (64) have lock nut (66).
2. The medium frequency induction carburizing furnace according to claim 1, characterized in that: slewing mechanism (4) include motor (41), transfer line (42), rolling disc (43) and one-level connecting rod (44), the bottom of furnace body (1) just is located central point and puts fixedly connected with motor (41), output shaft one end fixedly connected with transfer line (42) of motor (41), the top of transfer line (42) runs through inner wall and the fixedly connected with rolling disc (43) of second grade recess (102), the surface of rolling disc (43) rotates with the inner wall of second grade recess (102) to be connected, cross recess has been seted up to the upper end of rolling disc (43), the inner wall sliding connection of cross recess has one-level connecting rod (44), the top of one-level connecting rod (44) and the bottom fixed connection who is located axis of rotation (67) at base (61) center.
3. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the beating mechanism (7) comprises a secondary connecting rod (71), a tertiary groove (72), a spring (73), a guide rod (74) and an impact block (75), a plurality of groups of secondary connecting rods (71) are annularly and uniformly arranged on the outer surface of the rotating shaft (67), a plurality of groups of the secondary connecting rods (71) are arranged in parallel in the vertical direction and correspond to the spherical workpieces (9), one end of the second-level connecting rod (71) far away from the rotating shaft (67) is provided with a third-level groove (72), the inner wall of the three-stage groove (72) is horizontally and fixedly connected with a spring (73), the other end of the spring (73) is fixedly connected with a guide rod (74), the outer surface of the guide rod (74) is connected with the inner wall of the third-stage groove (72) in a sliding way, the other end of the guide rod (74) is fixedly connected with an impact block (75), and the outer surface of the impact block (75) is in sliding connection with the outer surface of the spherical workpiece (9).
4. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the automatic cover opening device is characterized by further comprising a cover opening mechanism (8), wherein the cover opening mechanism (8) comprises a fixing plate (81), a fixing frame (82), a connecting plate (83), a fixing rod (84) and a sleeve (85), the outer surface of the furnace body (1) is fixedly connected with a fixed plate (81), the upper end of the fixed plate (81) is fixedly connected with a power unit, a connecting plate (83) is fixedly connected on the outer surface of the furnace cover (2) and above the fixing plate (81), two ends of the connecting plate (83) are hinged with a fixed mount (82), the other end of the fixed mount (82) is fixedly connected with the outer surface of the furnace body (1), one end of the connecting plate (83) far away from the furnace cover (2) is fixedly connected with a fixed rod (84), the outer surface cover of dead lever (84) is equipped with sleeve (85), the below surface of sleeve (85) and the upper end fixed connection of power pack.
5. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the upper end of the top cover (64) is fixedly connected with a plurality of lifting lugs (641).
6. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the bearing is a SIAIF high-temperature resistant bearing.
7. The medium frequency induction carburizing furnace according to claim 4, characterized in that: the power unit is provided as a hydraulic cylinder (10).
8. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the inner wall of the arc-shaped groove (63) is fixedly connected with a plurality of protruding blocks (631), and a certain gap is reserved between the protruding blocks (631) and the spherical workpiece (9).
9. The medium frequency induction carburizing furnace according to claim 8, characterized in that: the bump (631) is configured as a hemispherical structure.
10. The medium frequency induction carburizing furnace according to claim 9, characterized in that: the material of the bump (631) is made of a material with a melting point higher than that of the spherical workpiece (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111396861.2A CN114196904A (en) | 2021-11-23 | 2021-11-23 | Medium frequency induction carburizing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111396861.2A CN114196904A (en) | 2021-11-23 | 2021-11-23 | Medium frequency induction carburizing furnace |
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| CN114196904A true CN114196904A (en) | 2022-03-18 |
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| CN202111396861.2A Pending CN114196904A (en) | 2021-11-23 | 2021-11-23 | Medium frequency induction carburizing furnace |
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| CN (1) | CN114196904A (en) |
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| CN111809136A (en) * | 2020-06-29 | 2020-10-23 | 张同玺 | Heat treatment carburizing process of high-temperature carburizing steel H10Cr4Mo4Ni4V |
| CN212274614U (en) * | 2020-04-22 | 2021-01-01 | 遂昌县鑫鼎特种铸造有限公司 | Stainless steel casting furnace |
| CN213591431U (en) * | 2020-10-21 | 2021-07-02 | 嘉兴市海杰科技股份有限公司 | Steel wire decorticator |
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2021
- 2021-11-23 CN CN202111396861.2A patent/CN114196904A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007010607A1 (en) * | 2005-07-21 | 2007-01-25 | Koyo Thermo Systems Co., Ltd. | Carburization method and carburization furnace |
| CN205613791U (en) * | 2016-03-14 | 2016-10-05 | 福建鼎信科技有限公司 | Stainless steel pickling for line steel band cinder strike extrusion device |
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