CN112251710A

CN112251710A - Medium frequency induction carburizing furnace

Info

Publication number: CN112251710A
Application number: CN202011174192.XA
Authority: CN
Inventors: 李磊; 余兆勇; 韩智源
Original assignee: Mingguang Jin Century Machinery Technology Co ltd
Current assignee: Mingguang Jin Century Machinery Technology Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-01-22

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 top of the furnace body is connected with a furnace cover through a telescopic device, an inner tank is coaxially connected in the furnace body, a heating layer is fixedly connected between the inner tank and the inner wall of the furnace body, an electric heating wire is fixedly connected in the heating layer, one side of the furnace body is connected with an air extracting device through a third pipe body, a fourth valve is fixedly connected on the third pipe body, the other side of the air extracting device is fixedly connected with an air purifying device, the air purifying device is fixedly connected with a first pipe body, the first pipe body is fixedly connected with a first valve, the air purifying device is also fixedly connected with a bent pipe through a fourth pipe body, the fourth pipe body is fixedly connected with a third valve, and the outer wall of the bent pipe is coaxially; the invention can improve the cooling efficiency of high-temperature gas and realize the quick movement of the device under the action of the rollers.

Description

Medium frequency induction carburizing furnace

Technical Field

The invention relates to the technical field of carburizing furnaces, in particular to a medium-frequency induction carburizing furnace.

Background

Carburizing is one kind of metal surface treatment, most of which is low carbon steel or low alloy steel, and the specific method is that a workpiece is put into an active carburizing medium and heated to a single-phase austenite region at 900-950 ℃, after the heat preservation is carried out for enough time, active carbon atoms decomposed from the carburizing medium are permeated into the surface layer of the steel part, thereby obtaining high carbon on the surface layer, the core still keeps the original components, and similarly, low temperature nitriding treatment is also carried out, which is a common heat treatment process of metal materials, when the existing carburizing furnace is in operation, if the heat preservation performance of the furnace body is poor, internal heat is easily diffused, the internal heat of the carburizing furnace is insufficient, further the cost is increased, resources are wasted, when the carburizing furnace is in operation, if the furnace cover needs to be lifted, the problem of inconvenient operation is caused by overhigh temperature, and the operation place is difficult to move when in use, the cooling device is difficult to move when the time for the cooling device is required to move a work place, so that the use time is wasted, after parts are machined, the cooling device is very important due to high-temperature operation, the cooling process of the existing equipment needs long time, and the machining efficiency is reduced. Therefore, a medium-frequency induction carburizing furnace is provided.

Disclosure of Invention

The invention aims to provide a medium-frequency induction carburizing furnace which has the advantages of being convenient to move and capable of cooling quickly, and solves the problems that in the prior art, a device is difficult to move, a furnace cover is difficult to lift, and the cooling efficiency of the device is low.

In order to achieve the purpose, the invention provides the following technical scheme: a medium frequency induction carburizing furnace comprises a furnace body, wherein the top of the furnace body is connected with a furnace cover through a telescopic device, the furnace body is internally and coaxially connected with an inner tank, a heating layer is fixedly connected between the inner tank and the inner wall of the furnace body, a heating wire is fixedly connected in the heating layer, one side of the furnace body is connected with an air extracting device through a third pipe body, a fourth valve is fixedly connected on the third pipe body, the other side of the air extracting device is fixedly connected with an air purifying device, the air purifying device is fixedly connected with a first pipe body, the first pipe body is fixedly connected with a first valve, the air purifying device is also fixedly connected with a bent pipe through a fourth pipe body, the fourth pipe body is fixedly connected with a third valve, the outer wall of the bent pipe is coaxially connected with a plurality of radiating fins, the bent pipe is positioned in a water tank, and the other, the water tank is characterized in that a second valve is connected to the second pipe body, the second pipe body extends to the outside of the water tank and is located the outside of the water tank, the second pipe body is connected with the furnace body through a fifth pipe body, a control switch is arranged on the outer wall of the water tank, and the air draft device, the heating wire, the fourth valve, the air purifying device, the first valve, the third valve and the second valve are all connected through a wire and the control switch.

Preferably, the telescoping device includes hydraulic pressure elevating gear, be connected with the mounting panel on the outer wall of furnace body perpendicularly, hydraulic pressure elevating gear's bottom fixed connection is at the top of mounting panel, one side of bell is connected with the backup pad, hydraulic pressure elevating gear's top fixed connection is in the bottom of backup pad, hydraulic pressure elevating gear carries out electric connection through wire and control switch.

Preferably, the outer wall of the furnace body is coaxially provided with an annular groove, the annular groove is internally and fixedly connected with a heat preservation layer, and the furnace body, the heating layer, the top of the inner tank and the bottom of the furnace cover are fixedly connected with sealing rings.

Preferably, the top of water tank is connected with the top cap, second body, fourth body all run through the top cap setting, fixedly connected with outlet pipe and inlet tube respectively from top to bottom on the side of water tank.

Preferably, the bottom of the furnace body is connected to the top of the placing seat, the bottom of the water tank is connected to the top of the supporting seat, one side of the supporting seat is vertically connected with the positioning plate, and one side of the positioning plate is connected with the side wall of the placing seat through the clamping plate.

Preferably, the bottom of the placing seat is fixedly connected with a plurality of rollers, and the bottom of the supporting seat is also fixedly connected with a plurality of rollers.

Preferably, the equal fixedly connected with installation pipe in bottom four corners department of placing the seat, coaxial coupling has the annular plate on the lower extreme inner wall of installation pipe, annular plate internal thread connection has the threaded rod, is located threaded rod end connection in the installation pipe has the limiting plate, the diameter of limiting plate is greater than the internal diameter of annular plate, the bottom coaxial coupling of threaded rod has anti-skidding seat.

Preferably, a placing groove is arranged on the side wall of the placing seat, one side of the clamping plate extends into the placing groove, a plurality of positioning holes are arranged at the top of the placing groove in a penetrating manner, positioning rods are coaxially arranged in the positioning holes, a sliding groove is arranged at the position corresponding to the top of the clamping plate, an inclined surface is arranged at one side of the sliding groove close to the placing groove, a groove is arranged in the sliding groove, the bottom of each positioning rod can be coaxially connected in the groove, the top of each positioning rod is fixedly connected to the bottom of the first transverse plate, a first spring is coaxially arranged on the positioning rod between the first transverse plate and the placing seat, the first spring is fixedly connected between the first transverse plate and the placing seat, a mounting groove is further arranged at the top of the placing seat, a sealing cover is fixedly connected at the top of the mounting groove, and a plurality of, the one end of V template and the bottom of first diaphragm offset, the equidistance is equipped with a plurality of first bar openings on the lateral wall of sealed lid, the other end of V template extends to sealed lid in through first bar opening, is located it is connected with the riser to rotate on the V template in the sealed lid, the top equidistance of sealed lid is equipped with a plurality of second bar openings, the top of riser extends to the outside of sealed lid through second bar opening, just the top fixed connection of riser is in the bottom of second diaphragm.

Preferably, the top fixedly connected with mount pad of bell, the bottom fixedly connected with driving motor of mount pad, driving motor carries out electric connection through wire and control switch, driving motor's output coaxial coupling has the pivot, driving motor's one end is kept away from in the pivot runs through the bell setting, just the pivot is rotated through sealed bearing and bell and is connected, the bottom coaxial coupling of pivot has the connecting seat, be equipped with a plurality of first flabellums along axial equidistance on the outer wall of connecting seat, first flabellum and connecting seat set up perpendicularly.

Preferably, the inner wall of the inner tank is telescopically connected with a push plate, the inner wall of one side of the inner tank is provided with a through hole, one side of the through hole is coaxially provided with a sliding groove, the sectional area of the sliding groove is larger than that of the through hole, one end of the push plate extends into the sliding groove through the through hole, the push plate positioned in the sliding groove is connected with a side plate, one side close to the through hole is fixedly connected with a second spring, the other side of the second spring is fixedly connected on the inner wall of the sliding groove, the second spring and the push plate are coaxially arranged, the bottom of the other end of the push plate is vertically connected with a connecting shaft, the outer part of the connecting shaft is rotationally connected with a positioning pipe, the outer wall of the positioning pipe is axially connected with a plurality of second fan blades, the lengths of the second fan blades are different, and a plurality of second fan blades are distributed in an elliptical shape, and the connecting shaft is positioned at the focus of the ellipse.

Compared with the prior art, the invention has the following beneficial effects:

1. the supporting seat and the placing seat are detachable, so that the device is convenient to mount and dismount, the supporting seat and the placing seat can play a good role in protecting a water tank and a furnace body, the service life of the device is prolonged, the device can be conveniently moved integrally under the action of the rollers, the strength of workers is greatly saved, and the working efficiency of the workers is improved.

2. The high-temperature gas in the inner tank can be transported into the bent pipe through the air draft device, the contact area between the bent pipe and the liquid in the water tank can be increased under the action of the heat radiating fins outside the bent pipe, so that the high-temperature gas can be quickly cooled, meanwhile, the air purification device can purify the gas, the pollution to the working environment is reduced by the purified gas, and the safety of the working environment is ensured.

3. According to the invention, through the arrangement of the hydraulic lifting device, the supporting plate and the mounting plate, the problems that the furnace cover is not easy to rise and inconvenient to operate in the prior art are solved, and the supporting plate can be driven to slide up and down through the telescopic operation of the hydraulic lifting device, so that the furnace cover can be driven to move up and down, and further, the operation of workers is facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a connection diagram of the elbow and the heat sink of the present invention;

FIG. 3 is a connection diagram of the water tank and the support base according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1;

FIG. 5 is a connection diagram of the supporting base and the placing base according to the present invention;

FIG. 6 is an enlarged view of a portion B of FIG. 5 in accordance with the present invention;

FIG. 7 is a connection diagram of the push plate and the inner tank according to the present invention;

FIG. 8 is a connection diagram of the alignment tube and the second blade of the present invention.

In the figure: 1. an air cleaning device; 2. a first valve; 3. a first pipe body; 4. a second valve; 5. a second tube body; 6. a water inlet pipe; 7. a water tank; 8. bending the pipe; 9. a heat sink; 10. a water outlet pipe; 11. a supporting seat; 12. an electric heating wire; 13. an inner tank; 14. a heating layer; 15. a top cover; 16. a third valve; 17. a third tube; 18. a first fan blade; 19. a rotating shaft; 20. A connecting seat; 21. an air draft device; 22. a fourth valve; 23. a furnace cover; 24. a drive motor; 25. a hydraulic lifting device; 26. mounting a plate; 27. a heat-insulating layer; 28. an annular groove; 29. a furnace body; 30. a placing seat; 31. a roller; 32. a fourth tube body; 33. clamping a plate; 34. positioning a plate; 35. a support plate; 36. a seal ring; 37. a fifth pipe body; 38. a mounting seat; 39. Sealing the bearing; 40. a control switch; 41. an anti-slip seat; 42. a threaded rod; 43. an annular plate; 44. a limiting plate; 45. installing a pipe; 46. a placement groove; 47. a bevel; 48. positioning a rod; 49. positioning holes; 50. a first spring; 51. a first transverse plate; 52. a V-shaped plate; 53. a U-shaped seat; 54. a first bar-shaped opening; 55. a second strip-shaped opening; 56. a second transverse plate; 57. A vertical plate; 58. a sealing cover; 59. mounting grooves; 60. a chute; 61. a groove; 62. a through hole; 63. pushing the plate; 64. a connecting shaft; 65. a positioning tube; 66. a second fan blade; 67. a sliding groove; 68. a side plate; 69. a second spring.

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. 1-8, a medium frequency induction carburizing furnace includes a furnace body 29, a furnace cover 23 connected to the top of the furnace body 29 through a telescopic device, an inner tank 13 coaxially connected in the furnace body 29, a heating layer 14 fixedly connected between the inner tank 13 and the inner wall of the furnace body 29, and an electric heating wire 12 fixedly connected in the heating layer 14, wherein the electric heating wire 12 is controlled by a control switch 40, so that the electric heating wire 12 works, and further the inner tank 13 can be heated, and further the normal proceeding of carburizing can be ensured.

Be connected with updraft ventilator 21 through third body 17 on one side of furnace body 29, fixedly connected with fourth valve 22 on the third body 17, the opposite side fixedly connected with air purification device 1 of updraft ventilator 21, the first body 3 of fixedly connected with on the air purification device 1, the first valve 2 of fixedly connected with on the first body 3, the air purification device 1 of setting can purify the filtration to the inside gas of furnace body 29, filter the back to gas, can open first valve 2 through control switch 40, can get rid of the gas after purifying in the furnace body 29 through first body 3, and then protected the environment of work, avoid causing the pollution of air.

Still through fourth body 32 fixedly connected with return bend 8 on the air purification device 1, fixedly connected with third valve 16 on the fourth body 32, coaxial connection has a plurality of fin 9 on the outer wall of return bend 8, return bend 8 is located inside water tank 7, the liquid of cooling usefulness has been put to the inside of water tank 7, heat exchange between through liquid and return bend 8, can cool down through the inside gas of return bend 8, set up fin 9 on the outer wall of return bend 8 simultaneously, very big increase the area of contact of return bend 8 and the inside liquid of water tank 7, and then improved the efficiency of cooling, when needing to cool down the operation, can open through control switch 40 control first valve 2, make the gas transportation in the furnace body 29 to return bend 8, high-temperature gas can carry out the heat exchange with liquid in the return bend 8, and then gaseous cooling has been realized.

The other end of return bend 8 is connected with second body 5, be connected with second valve 4 on the second body 5, second body 5 extends to 7 outsides of water tank, and the second body 5 that is located 7 outsides of water tank connects through fifth body 37 and furnace body 29, be equipped with control switch 40 on the water tank 7 outer wall, updraft ventilator 21, heating wire 12, fourth valve 22, air purification device 1, first valve 2, third valve 16, second valve 4 all connects through wire and control switch 40, the control of the 4 accessible control switch 40 of second valve of setting works, and the second valve 4 of setting can control fifth body 37, and then the gas in the steerable furnace body 29 enters into in the return bend 8.

Further, the telescoping device includes hydraulic pressure elevating gear 25, be connected with mounting panel 26 on the outer wall of furnace body 29 perpendicularly, hydraulic pressure elevating gear 25's bottom fixed connection is at the top of mounting panel 26, one side of bell 23 is connected with backup pad 35, hydraulic pressure elevating gear 25's top fixed connection is in the bottom of backup pad 35, hydraulic pressure elevating gear 25 carries out electric connection through wire and control switch 40, can improve the stability of being connected between hydraulic pressure elevating gear 25 and the furnace body 29 through the backup pad 35 that sets up, and hydraulic pressure elevating gear 25 accessible control switch 40's control, and then can realize hydraulic pressure elevating gear 25's concertina movement, hydraulic pressure elevating gear 25 that reciprocates can drive bell 23 and carry out the removal from top to bottom, and then realized the relative movement between bell 23 and the furnace body 29, staff's work efficiency has been improved.

Further, the coaxial ring channel 28 that is equipped with on the outer wall of furnace body 29, fixedly connected with heat preservation 27 in the ring channel 28, furnace body 29, zone of heating 14, the equal fixedly connected with sealing washer 36 in top of inner tank 13 and the bottom of bell 23, can play fine heat preservation effect to furnace body 29 through the heat preservation 27 that sets up, and then improve the holistic heat insulating ability of device effectively, when carrying out the carburization operation, can reduce the loss of heat in the furnace body 29, the normal clear of inside carburization operation has been guaranteed, the quality of processing also can be improved simultaneously, the sealing washer 36 that sets up has also improved furnace body 29, zone of heating 14, the leakproofness of connecting between inner tank 13 and the bell 23, the normal clear of the inside carburization operation of inner tank 13 has further been guaranteed.

Further, the top of water tank 7 is connected with top cap 15, the second body 5, fourth body 32 all runs through top cap 15 and sets up, fixedly connected with outlet pipe 10 and inlet tube 6 respectively from top to bottom on the side of water tank 7, the inlet tube 6 and the outlet pipe 10 and the pumping device that set up are connected, liquid with the cooling usefulness is transported to inside the water tank 7 through inlet tube 6, liquid with the cooling usefulness simultaneously can carry out and circulate in the inside of water tank 7, the liquid and the return bend 8 of circulation flow, the surface of fin 9 contacts, can realize the cooling of the inside high-temperature gas of return bend 8, liquid in the inlet tube 6 is by supreme removal down, high-temperature gas from top to bottom's removal, can increase the efficiency of cooling.

Further, the top at placing seat 30 is connected to the bottom of furnace body 29, the top at supporting seat 11 is connected to the bottom of water tank 7, one side of supporting seat 11 is connected with locating plate 34 perpendicularly, one side of locating plate 34 is connected with the lateral wall of placing seat 30 through cardboard 33, through the locating plate 34 that sets up, cardboard 33, can realize supporting seat 11 and place dismantling between the seat 30, the installation of staff to the device has been made things convenient for, and be convenient for the maintenance to the device, the seat 30 that places that sets up can play effectual guard action to furnace body 29, the supporting seat 11 that sets up simultaneously also can play the effect of protection to the bottom of water tank 7, and then can prolong device's life.

Further, place a plurality of gyro wheels 31 of bottom fixedly connected with of seat 30, also a plurality of gyro wheels 31 of fixedly connected with in the bottom of supporting seat 11, the gyro wheel 31 of setting has made things convenient for the staff to the removal of furnace body 29 and water tank 7, and the staff can remove the device to the place that needs to use fast, has not only made things convenient for the operation, and has saved a large amount of manpowers.

Further, the equal fixedly connected with installation pipe 45 in bottom four corners department of placing seat 30, coaxial connection has annular plate 43 on the lower extreme inner wall of installation pipe 45, annular plate 43 female connection has threaded rod 42, the threaded rod 42 end connection who is located installation pipe 45 has limiting plate 44, the diameter of limiting plate 44 is greater than the internal diameter of annular plate 43, the bottom coaxial connection of threaded rod 42 has anti-skidding seat 41, threaded connection between threaded rod 42 and the annular plate 43, can highly adjust placing of anti-skidding seat 41, and then contact and separation between anti-skidding seat 41 and the supporting plane have been realized, the effect of location has been played placing of placing seat 30, and then realized placing the stable of seat 30 and place.

Further, a placing groove 46 is arranged on the side wall of the placing seat 30, one side of the clamping plate 33 extends into the placing groove 46, a plurality of positioning holes 49 are arranged at the top of the placing groove 46 in a penetrating manner, positioning rods 48 are coaxially arranged in the positioning holes 49, a sliding groove 60 is arranged at a position corresponding to the top of the clamping plate 33, an inclined surface 47 is arranged at one side of the sliding groove 60 close to the placing groove 46, a groove 61 is arranged in the sliding groove 60, the bottom of the positioning rod 48 can be coaxially connected in the groove 61, the top of the positioning rod 48 is fixedly connected to the bottom of the first transverse plate 51, a first spring 50 is coaxially arranged on the positioning rod 48 between the first transverse plate 51 and the placing seat 30, the first spring 50 is fixedly connected between the first transverse plate 51 and the placing seat 30, a mounting groove 59 is also arranged at the top of the placing seat 30, a sealing cover 58 is fixedly connected at the top of, one end of the V-shaped plate 52 is abutted against the bottom of the first transverse plate 51, a plurality of first strip-shaped openings 54 are equidistantly arranged on the side wall of the sealing cover 58, the other end of the V-shaped plate 52 extends into the sealing cover 58 through the first strip-shaped openings 54, a vertical plate 57 is rotatably connected to the V-shaped plate 52 in the sealing cover 58, a plurality of second strip-shaped openings 55 are equidistantly arranged on the top of the sealing cover 58, the top of the vertical plate 57 extends to the outside of the sealing cover 58 through the second strip-shaped openings 55, the top of the vertical plate 57 is fixedly connected to the bottom of the second transverse plate 56, the clamping plate 33 can be pushed into the placing groove 46 by pushing the supporting seat 11, the bottom of the positioning rod 48 can be moved to the inclined plane 47, the supporting seat 11 is continuously pushed, the positioning rod 48 can be slid to the sliding groove 60, and under the elastic force of the first spring 50, the bottom of the positioning rod 48 can be moved into the groove, when not using, press second diaphragm 56, can drive riser 57 and rotate in the one end of V-arrangement board 52, simultaneously under the effect of U type seat 53 for the other end of V-arrangement board 52 rotates, and pivoted V-arrangement board 52 promotes first diaphragm 51 rebound, and the first diaphragm 51 of removal drives locating lever 48 and removes from spout 60, and stimulates supporting seat 11, can separate between supporting seat 11 and the seat 30 of placing.

Further, the top of the furnace cover 23 is fixedly connected with a mounting base 38, the bottom of the mounting base 38 is fixedly connected with a driving motor 24, the arrangement of the mounting base 38 improves the stability of the connection of the driving motor 24 on the top of the furnace cover 23, the driving motor 24 is electrically connected with a control switch 40 through a lead, the output end of the driving motor 24 is coaxially connected with a rotating shaft 19, one end of the rotating shaft 19, which is far away from the driving motor 24, penetrates through the furnace cover 23 and is arranged, the rotating shaft 19 is rotatably connected with the furnace cover 23 through a sealing bearing 39, the bottom of the rotating shaft 19 is coaxially connected with a connecting base 20, a plurality of first fan blades 18 are axially and equidistantly arranged on the outer wall of the connecting base 20, the first fan blades 18 and the connecting base 20 are vertically arranged, when the driving motor 24 rotates, the rotating shaft 19 can be driven to rotate on the furnace cover 23, under the, meanwhile, the whole sealing performance of the device is guaranteed, normal carburization operation is guaranteed, the rotating shaft 19 can drive the connecting seat 20 to rotate, the rotating connecting seat 20 can drive the connected first fan blades 18 to rotate, and then gas inside the inner tank 13 can be circulated, so that the medium gas can be in sufficient contact with the surface of a workpiece, the carburization efficiency is improved, the flowing speed of the internal gas can be increased when cooling operation is carried out, and the cooling efficiency is improved.

Further, a push plate 63 is telescopically connected to the inner wall of the inner tank 13, the push plate 63 is located below the first fan blade 18, a through hole 62 is formed in the inner wall of one side of the inner tank 13, a sliding groove 67 is coaxially formed in one side of the through hole 62, the sectional area of the sliding groove 67 is larger than that of the through hole 62, one end of the push plate 63 extends into the sliding groove 67 through the through hole 62, a side plate 68 is connected to the push plate 63 located in the sliding groove 67, a second spring 69 is fixedly connected to one side of the side plate 68 close to the through hole 62, the other side of the second spring 69 is fixedly connected to the inner wall of the sliding groove 67, the second spring 69 and the push plate 63 are coaxially arranged, a connecting shaft 64 is vertically connected to the bottom of the other end of the push plate 63, a positioning pipe 65 is rotatably connected to the outer portion of the connecting shaft 64, a plurality of second fan blades 66 are axially connected to the, the connecting shaft 64 is located at the focus of the ellipse, the push plate 63 is located below the first fan blade 18, the second fan blade 66 can rotate under the action of wind, the second fan blade 66 is distributed in an ellipse shape, so that the second fan blade 66 can generate centrifugal force in the rotating process, the second fan blade 66 can move in a left-right reciprocating mode, the heating wire 12 can heat gas around the inner wall of the inner tank 13 during operation, the reciprocating rotation of the second fan blade 66 can accelerate the flow of hot gas near the inner wall of the inner tank 13, and uniform heating of the heating wire 12 is achieved.

When the device is used, the device is electrically connected with a power supply device through a lead, the hydraulic lifting device 25 is controlled by the control switch 40 to perform telescopic motion, the moving hydraulic lifting device 25 can drive the furnace cover 23 to move out of the top of the furnace body 29, a workpiece to be processed is placed in the inner tank 13, the furnace cover 23 is moved to the top of the furnace body 29 through the control switch 40 again, the sealing performance of the whole device can be ensured under the sealing effect of the arranged sealing ring 36, the control switch 40 controls the second valve 4 and the fourth valve 22 to be closed, medium gas used for carburizing operation is conveyed into the inner tank 13, the electric heating wire 12 is controlled to work, the carburizing operation can be performed, the driving motor 24 rotates to drive the first fan blade 18 at the bottom of the furnace cover 23 to rotate, the rotating first fan blade 18 further accelerates the medium gas to flow in the device, thereby improving the contact between the medium gas and the surface of the workpiece and further improving the processing quality.

After the processing is finished, the device can be cooled, the second valve 4 and the fourth valve 22 are opened through the control switch 40, the first valve 2 is closed, the liquid used for cooling is transported into the water tank 7 through the water inlet pipe 6, the high-temperature gas in the inner tank 13 can be transported into the air purification device 1 through the air draft device 21, the high-temperature gas is purified, the purified high-temperature gas is transported into the elbow pipe 8, the contact area between the elbow pipe 8 and the liquid in the water tank 7 is increased through the arranged radiating fins 9, the cooling efficiency is further increased, the high-temperature gas moves from top to bottom, the liquid in the water tank 7 moves from bottom to top, the cooling efficiency can be accelerated, the cooled high-temperature gas moves into the fifth pipe 37 through the second pipe 5 and can be transported into the inner tank 13 again, and under the action of the rotating first fan blade 18, can accelerate the gaseous flow in inside, further improvement the efficiency of cooling, can close third valve 16 after the cooling is accomplished to open first valve 2, can make things convenient for the gaseous emission in device inside, under the purification effect of air purification device 1, can avoid gaseous pollution to the environment, improved operational environment's security simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a medium frequency induction carburizing furnace, includes furnace body (29), its characterized in that: the furnace is characterized in that the top of the furnace body (29) is connected with a furnace cover (23) through a telescopic device, an inner tank (13) is coaxially connected in the furnace body (29), a heating layer (14) is fixedly connected between the inner tank (13) and the inner wall of the furnace body (29), an electric heating wire (12) is fixedly connected in the heating layer (14), an air extracting device (21) is connected on one side of the furnace body (29) through a third pipe body (17), a fourth valve (22) is fixedly connected on the third pipe body (17), an air purifying device (1) is fixedly connected on the other side of the air extracting device (21), a first pipe body (3) is fixedly connected on the air purifying device (1), a first valve (2) is fixedly connected on the first pipe body (3), a bent pipe (8) is fixedly connected on the air purifying device (1) through a fourth pipe body (32), and a third valve (16) is fixedly connected on the fourth pipe body (32), coaxially connected has a plurality of fin (9) on the outer wall of return bend (8), return bend (8) are located inside water tank (7), the other end of return bend (8) is connected with second body (5), be connected with second valve (4) on second body (5), second body (5) extend to water tank (7) outside, and are located outside second body (5) of water tank (7) are connected through fifth body (37) and furnace body (29), be equipped with control switch (40) on water tank (7) outer wall, updraft ventilator (21), heating wire (12), fourth valve (22), air purification device (1), first valve (2), third valve (16), second valve (4) all connect through wire and control switch (40).

2. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the telescoping device includes hydraulic pressure elevating gear (25), be connected with mounting panel (26) on the outer wall of furnace body (29) perpendicularly, the bottom fixed connection of hydraulic pressure elevating gear (25) is at the top of mounting panel (26), one side of bell (23) is connected with backup pad (35), the top fixed connection of hydraulic pressure elevating gear (25) is in the bottom of backup pad (35), hydraulic pressure elevating gear (25) carry out electric connection through wire and control switch (40).

3. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the coaxial ring channel (28) that is equipped with on the outer wall of furnace body (29), fixedly connected with heat preservation (27) in ring channel (28), equal fixedly connected with sealing washer (36) in the bottom of the top of furnace body (29), zone of heating (14), inner tank (13) and bell (23).

4. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the top of water tank (7) is connected with top cap (15), second body (5), fourth body (32) all run through top cap (15) and set up, be on the side of water tank (7) from top to bottom respectively fixedly connected with outlet pipe (10) and inlet tube (6).

5. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the bottom of furnace body (29) is connected at the top of placing seat (30), the bottom of water tank (7) is connected at the top of supporting seat (11), one side of supporting seat (11) is connected with locating plate (34) perpendicularly, one side of locating plate (34) is connected through cardboard (33) and the lateral wall of placing seat (30).

6. The medium frequency induction carburizing furnace according to claim 5, characterized in that: the bottom of the placing seat (30) is fixedly connected with a plurality of rollers (31), and the bottom of the supporting seat (11) is also fixedly connected with a plurality of rollers (31).

7. The medium frequency induction carburizing furnace according to claim 5, characterized in that: place equal fixedly connected with installation pipe (45) in bottom four corners department of seat (30), coaxial coupling has annular slab (43) on the lower extreme inner wall of installation pipe (45), annular slab (43) female connection has threaded rod (42), is located threaded rod (42) end connection in installation pipe (45) has limiting plate (44), the diameter of limiting plate (44) is greater than the internal diameter of annular slab (43), the bottom coaxial coupling of threaded rod (42) has antiskid seat (41).

8. The medium frequency induction carburizing furnace according to claim 5, characterized in that: be equipped with standing groove (46) on the lateral wall of placing seat (30), one side of cardboard (33) extends to in standing groove (46), the top of standing groove (46) is run through and is equipped with a plurality of locating holes (49), coaxial locating lever (48) that are equipped with in locating hole (49), the top of cardboard (33) corresponds position department and is equipped with spout (60), one side that spout (60) are close standing groove (46) is equipped with inclined plane (47), be equipped with recess (61) in spout (60), but the bottom coaxial coupling of locating lever (48) is in recess (61), the top fixed connection of locating lever (48) is in the bottom of first diaphragm (51), is located coaxial being equipped with first spring (50) on first diaphragm (51), the locating lever (48) between placing seat (30), first spring (50) fixed connection is in first diaphragm (51), Placing between seats (30), the top of placing seat (30) still is equipped with mounting groove (59), the top fixedly connected with sealed lid (58) of mounting groove (59), it is connected with a plurality of V template (52) to rotate through U type seat (53) between locating lever (48), sealed lid (58), the one end of V template (52) offsets with the bottom of first diaphragm (51), the equidistance is equipped with a plurality of first bar opening (54) on the lateral wall of sealed lid (58), the other end of V template (52) extends to sealed lid (58) through first bar opening (54), be located rotate on the V template (52) in sealed lid (58) and be connected with riser (57), the top equidistance of sealed lid (58) is equipped with a plurality of second bar opening (55), the top of riser (57) extends to the outside of sealed lid (58) through second bar opening (55), and the top of the vertical plate (57) is fixedly connected to the bottom of the second transverse plate (56).

9. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the utility model discloses a bell, including bell (23), top fixedly connected with mount pad (38) of bell (23), the bottom fixedly connected with driving motor (24) of mount pad (38), driving motor (24) carry out electric connection through wire and control switch (40), the output coaxial coupling of driving motor (24) has pivot (19), the one end that driving motor (24) were kept away from in pivot (19) runs through bell (23) setting, just pivot (19) rotate through sealed bearing (39) and bell (23) and connect, the bottom coaxial coupling of pivot (19) has connecting seat (20), be equipped with a plurality of first flabellums (18) along axial equidistance on the outer wall of connecting seat (20), first flabellum (18) and connecting seat (20) set up perpendicularly.

10. The medium frequency induction carburizing furnace according to claim 1, characterized in that: the inner wall of inner tank (13) is connected with push plate (63) in a telescopic manner, one side inner wall of inner tank (13) is provided with through hole (62), one side of through hole (62) is coaxially provided with sliding groove (67), the sectional area of sliding groove (67) is larger than that of through hole (62), one end of push plate (63) extends into sliding groove (67) through hole (62), and is located push plate (63) in sliding groove (67) is connected with lateral plate (68), one side of lateral plate (68) close to through hole (62) is fixedly connected with second spring (69), the other side of second spring (69) is fixedly connected on sliding groove (67) inner wall, second spring (69) and push plate (63) are coaxially arranged, the other end bottom of push plate (63) is vertically connected with connecting shaft (64), connecting shaft (64) is externally connected with positioning tube (65) in a rotating manner, be connected with a plurality of second flabellum (66) along the axial on registration arm (65) outer wall, it is a plurality of the length of second flabellum (66) varies, and is a plurality of second flabellum (66) are oval-shaped and distribute, connecting axle (64) are located oval focus department.