CN114871377A

CN114871377A - Forging furnace for metal processing

Info

Publication number: CN114871377A
Application number: CN202210808871.0A
Authority: CN
Inventors: 张保玲; 张捷; 张豪; 高欢
Original assignee: Jiangsu Haoran New Materials Co ltd
Current assignee: Jiangsu Haoran New Materials Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-08-09
Anticipated expiration: 2042-07-11
Also published as: CN114871377B

Abstract

The invention relates to the technical field of forging furnaces, in particular to a forging furnace for metal processing, which comprises an inner chamber, wherein an outer furnace body coaxial with the inner chamber is sleeved on the outer side of the inner chamber, a plurality of nozzles are uniformly arranged on the side wall of the inner chamber in a penetrating manner, a connecting assembly is sleeved at the end part, opposite to a fuel conveying pipe, of each nozzle, an adjusting hemisphere is sleeved on the outer wall of one end, opposite to the fuel conveying pipe, of each nozzle, a locking assembly used for limiting the adjusting hemisphere is arranged on the side wall of the inner chamber, an expansion ball is sleeved on the outer wall of the fuel conveying pipe, and a traction assembly is sleeved on the outer side of the expansion ball; the double-layer structure is arranged in the forging furnace, and heat inside the forging furnace is isolated through the double-layer structure, so that heat loss in the operation process of the forging furnace can be effectively reduced; when working personnel process workpieces of different specifications and batches, the angle of the nozzle can be adjusted according to the requirements on the site, and then the heating area is adjusted, so that the energy utilization rate can be improved.

Description

Forging furnace for metal processing

Technical Field

The invention relates to the technical field of forging furnaces, in particular to a forging furnace for metal processing.

Background

Forging is a common process in a machining process, in order to enable a workpiece to achieve certain characteristics, high-temperature forging treatment needs to be carried out on the workpiece, the existing forging furnace can be divided into a flame heating furnace and an electric heating furnace, and metal is heated through different energy utilization modes.

However, some problems still remain in the use process of the existing forging furnace, heat loss is serious when the furnace body is opened and closed when the flame heating furnace is used, and when workpieces of different specifications are heated when the flame heating furnace is used, a worker is difficult to adjust the direction of a single flame, so that the heat utilization efficiency of the heating furnace is not ideal when the heating furnace is used.

In order to solve the problems exposed in the use process of the existing forging furnace, the forging furnace needs to be improved and optimized.

Disclosure of Invention

In order to solve the technical problems, the invention provides a forging furnace for metal processing, which has the characteristics of effectively avoiding excessive heat loss of a heating furnace and improving the energy utilization rate of the heating furnace.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a forging furnace for metalworking, includes interior chamber, the outside cover of interior chamber is equipped with the outer furnace body coaxial with interior chamber, the outer wall of interior chamber evenly is equipped with a plurality of baffles, every the other end of baffle all with outer furnace body inner wall connection, be provided with material conveying component in the interior chamber.

The lateral wall of inner chamber evenly runs through and is equipped with a plurality of nozzles, the one end of nozzle is connected with fuel delivery pipe, the tip cover that nozzle and fuel delivery pipe are relative is equipped with coupling assembling, the nozzle all overlaps with the one end outer wall that fuel delivery pipe is relative and is equipped with the regulation hemisphere, the lateral wall of inner chamber is provided with and is used for carrying out spacing locking Assembly to the regulation hemisphere, fuel delivery pipe's outer wall cover is equipped with the inflation ball, the outside cover of inflation ball is equipped with the subassembly that pulls.

The outer wall that the outside of fuel delivery pipe is located the interior chamber evenly is provided with a plurality of bracing pieces, the top of bracing piece is equipped with the adjustable ring, draw subassembly one end with the adjustable ring is connected.

As the preferred technical scheme of the forging furnace for metal processing, the material conveying assembly comprises guide rails symmetrically arranged on the inner wall of the inner cavity, sliding grooves are formed in the guide rails along the axis of the inner cavity, a traction belt is embedded in the sliding grooves, and a plurality of expansion columns are uniformly distributed on the traction belt.

According to the preferable technical scheme of the forging furnace for metal processing, the connecting assembly comprises extension rings which are respectively arranged at the end parts of the nozzle and the fuel conveying pipe, a limiting ring is sleeved on the outer wall of the nozzle or the fuel conveying pipe, the limiting ring and the extension rings are connected and locked in a screwing mode through threads, the two adjusting hemispheres are respectively sleeved on the side walls of the nozzle and the fuel conveying pipe, and the two adjusting hemispheres are connected in a screwing mode through threads.

As the preferred technical scheme of the forging furnace for metal processing, the locking assembly comprises locking rings which are screwed on the surfaces of the two sides of the inner cavity through threads, and the outer wall, positioned on the adjusting hemisphere, of the inner sides of the two locking rings is sleeved with a filling heat-insulating layer.

The outer walls of the nozzle and the fuel conveying pipe are all sleeved with a corrugated protection cylinder, and the other end of the corrugated protection cylinder is extruded and locked through a locking ring.

As a preferred technical scheme of the forging furnace for metal processing, the traction assembly comprises a limiting sleeve ring, a traction frame and a traction cylinder, the limiting sleeve ring is sleeved on the expansion ball in an interference connection fit mode, the traction frame is rotationally connected with the limiting sleeve ring through a rotating shaft, the traction cylinder is rotationally connected in the adjusting ring through the rotating shaft, one end of the traction frame penetrates through the traction cylinder, and one end of the traction frame, far away from the limiting sleeve ring, is provided with an adjusting bolt in a screwing mode through threads.

According to the preferable technical scheme of the forging furnace for metal processing, the top ends of the support rods are fixedly provided with the stabilizing rings which are connected end to end, and the bottom ends of the adjusting rings are embedded on the stabilizing rings and can rotate along the stabilizing rings.

According to the preferable technical scheme of the forging furnace for metal processing, two ends of the inner chamber are connected with sealing doors through rotating shafts, and heat insulation plates are embedded at two ends, located on the outer side of the sealing doors, of the outer furnace body.

The two ends of the outer furnace body, which are axially located along the outer furnace body, are connected and provided with an extension furnace body, and one end, far away from the sealing door, of the extension furnace body is connected and provided with a heat insulation door capable of being opened and closed through a rotating shaft.

As a preferred technical scheme of the forging furnace for metal processing, a plurality of exhaust pipes vertically penetrate through the top ends of the inner chamber and the outer furnace body.

The bottom of inner chamber and outer furnace body has seted up logical groove, leads to the inslot and rotates the installation through the axis of rotation and is equipped with the chip removal board that can deflect and open and shut.

As a preferred technical scheme of the forging furnace for metal processing, a plurality of telescopic rods symmetrically penetrate through the inner wall of the inner chamber, clamping blocks are arranged at the telescopic ends of the telescopic rods, and induction coils are arranged in the clamping blocks.

As a preferred technical scheme of the forging furnace for metal processing, the outer side of the adjusting ring is positioned on the side wall of the outer furnace body and is rotatably connected with an inspection window through a rotating shaft.

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

1. Be provided with bilayer structure in this forging furnace, completely cut off the heat of forging furnace inside through bilayer structure, can effectual reduction forging furnace operation in-process heat loss, the sealing door is opened the in-process and can is closed thermal-insulated door, and then makes the work piece that is heated can be carried the inside that extends the furnace body, opens and shuts through thermal-insulated door and sealing door spaced type to reduce the heat and run off in forging furnace both ends department, and then effectual promotion energy utilization efficiency.

2. The angle-adjustable nozzle is additionally arranged in the forging furnace, so that when workers process workpieces of different specifications in batches, the angle of the nozzle can be adjusted according to field requirements, the heating area is adjusted, the workpieces can be conveyed to the heating area to be heated in the conveying process, the rapid temperature rise of the workpieces is facilitated, and the energy utilization rate can be improved.

3. The nozzle is for dividing the body structure with the fuel delivery pipe design, and rotates through the inside of cavity including two regulation hemispheres, is convenient for to fill in the nozzle rotation region sealed, and the nozzle of being convenient for deflects, carries on spacingly through the check lock ring to the nozzle, and hoisting device stability in use, and the effectual gap region when avoiding the forge furnace use heat to pass through the nozzle motion runs off.

4. The cover is equipped with inflation ball and the spacing lantern ring on fuel conveying pipe, the traction frame is rotated through adjusting bolt and is pull in pulling a section of thick bamboo, and then drives the spacing lantern ring and deflect on the inflation ball, and then the gesture of adjustment fuel conveying pipe and nozzle, through the angle of this mode adjustment fuel conveying pipe and nozzle, can be so that the gesture of deflecting of nozzle keeps lasting stable, can not lead to the angle change because the nozzle uses for a long time, the structural posture stability when retention device uses, the equipment of being convenient for uses for a long time.

5. The supporting rod, the stabilizing ring and the adjusting ring are additionally arranged on the outer side of the fuel conveying pipe, the adjusting ring deflects on the stabilizing ring, the inclination angle of the fuel conveying pipe and the nozzle is adjusted, the adjusting hemisphere spliced into a sphere can be enabled to rotate on the side wall of the inner cavity conveniently, the posture of the nozzle is adjusted, and processing treatment is conducted on metal in the forging furnace conveniently.

Drawings

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view illustrating an inner structure of the thermal door of fig. 1 according to the present invention when it is opened.

Fig. 3 is a partial structural schematic diagram of fig. 2 in the present invention.

Fig. 4 is a schematic front view of the structure of fig. 3 according to the present invention.

FIG. 5 is a schematic view of a nozzle adjustment assembly according to the present invention.

FIG. 6 is a partial cross-sectional structural schematic view of a nozzle adjustment assembly of the present invention.

Fig. 7 is a schematic view of an induction coil structure according to the present invention.

In the figure: 1. an outer furnace body; 2. an access panel; 3. an extension furnace body; 4. a heat-insulating door; 5. a guide rail; 6. a traction belt; 7. a heat insulation plate; 8. a sealing door; 9. an inner chamber; 10. a partition plate; 11. an exhaust pipe; 12. a locking ring; 13. a nozzle; 14. a support bar; 15. an adjusting ring; 16. a chip removal plate; 17. a fuel delivery pipe; 18. an expansion ball; 19. a limiting lantern ring; 20. a traction frame; 21. a traction drum; 22. adjusting the bolt; 23. a corrugated protective cylinder; 24. a stabilizing ring; 25. adjusting the hemisphere; 26. filling a heat insulation layer; 27. an extension ring; 28. a limiting ring; 29. a positioning cylinder.

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.

Example 1

As shown in fig. 1 to 6, the forging furnace for metal processing disclosed in the present invention includes an inner chamber 9, the inner chamber 9 adopted in the present embodiment is a hollow octagonal prism structure, an outer furnace body 1 coaxial with the inner chamber 9 is sleeved outside the inner chamber 9, the outer furnace body and the inner chamber disclosed in the present embodiment are both made of heat insulating materials, which can reduce heat loss, a plurality of partition plates 10 are uniformly arranged on the outer wall of the inner chamber 9, the partition plates 10 keep the sealing between the chambers, can block heat transmission while enhancing the structural strength of the forging furnace, the other end of each partition plate 10 is connected with the inner wall of the outer furnace body 1, a material conveying assembly is arranged in the inner chamber 9, and a workpiece to be processed is transferred and transported through the material conveying assembly.

The lateral wall of interior chamber 9 evenly runs through and is equipped with a plurality of nozzles 13, the one end of nozzle 13 is connected with fuel delivery pipe 17, nozzle 13 that adopts in this embodiment is ceramic structure, can avoid on heat transmission goes to interior chamber 9, the tip cover that nozzle 13 is relative with fuel delivery pipe 17 is equipped with coupling assembling, nozzle 13 all overlaps with the one end outer wall that fuel delivery pipe 17 is equipped with and adjusts hemisphere 25, the lateral wall of interior chamber 9 is provided with and is used for carrying out spacing locking Assembly to adjusting hemisphere 25, fuel delivery pipe 17's outer wall cover is equipped with inflation ball 18, the outside cover of inflation ball 18 is equipped with pulls the subassembly, the regulation hemisphere 25 that adopts in this embodiment is thermal-insulated ceramic structure, two regulation hemispheres 25 can splice to the spheroid structure, be convenient for rotate in interior chamber 9 lateral wall, and then adjust nozzle 13's angle.

The outer wall that fuel delivery pipe 17's the outside is located inner chamber 9 evenly is provided with a plurality of bracing pieces 14, and the top of bracing piece 14 is equipped with adjusting ring 15, draws subassembly one end to be connected with adjusting ring 15, draws fuel delivery pipe 17 through drawing the subassembly, and then makes fuel delivery pipe 17 accomplish the deflection of fixed angle.

It is specific, the guide rail 5 of cavity 9 inner wall including the symmetry sets up for the material conveying subassembly, the spout has been seted up along interior cavity 9 axis in the guide rail 5, the gomphosis is equipped with traction belt 6 in the spout, it is equipped with a plurality of inflation posts to evenly arrange on traction belt 6, the cross-sectional structure of traction belt 6 that adopts in this embodiment is the I shape structure, the spout is for taking 6 matched with I shape recesses with traction, make traction belt 6 remain stable in transmission process, lead to traction belt 6 to take place to deflect in the spout when avoiding material quality great, be convenient for shift the transportation to the material.

Specifically, coupling assembling is including setting up the extension ring 27 at nozzle 13 and fuel delivery pipe 17 tip respectively, nozzle 13 or fuel delivery pipe 17's outer wall cover is equipped with spacing ring 28, spacing ring 28 closes with extending ring 27 through the screw soon and is connected the locking, two adjust hemisphere 25 and establish respectively the lateral wall at nozzle 13 and fuel delivery pipe 17, and two adjust hemisphere 25 and close the connection through the screw soon, two adjust hemisphere 25 concatenations and be a spheroid structure in this embodiment, and then be convenient for the free rotation of cavity 9 lateral walls including spheroidal structure, seal the packing in the gap region on cavity 9 lateral walls simultaneously, reduce the heat loss rate.

Specifically, the locking assembly comprises locking rings 12 which are screwed on the surfaces of the two sides of the inner cavity 9 through threads, and the outer wall of the inner sides of the two locking rings 12, which is positioned on the adjusting hemisphere 25, is sleeved with a filling heat insulation layer 26.

Nozzle 13 and fuel delivery pipe 17 outer wall all overlap and are equipped with a ripple protection section of thick bamboo 23, and the other end of a ripple protection section of thick bamboo 23 passes through the extrusion locking of check ring 12, and a ripple protection section of thick bamboo 23 can adopt the skin to plate the heat radiation reflection aluminium membrane in this embodiment, and the inlayer is provided with the component of thermal-insulated rubber pad, avoids the piece card at the outer wall of adjusting hemisphere 25, promotes thermal isolated effect simultaneously.

Specifically, draw the subassembly including the spacing lantern ring 19, traction frame 20 and draw a section of thick bamboo 21, spacing lantern ring 19 overlaps through the interference fit cover and establishes on expansion ball 18, traction frame 20 rotates with spacing lantern ring 19 through the pivot and is connected, rotate through the pivot in the adjustable ring 15 and connect and be equipped with and draw a section of thick bamboo 21, the one end of traction frame 20 runs through from drawing a section of thick bamboo 21, the one end that traction frame 20 kept away from spacing lantern ring 19 is equipped with adjusting bolt 22 through the screw thread closure soon, it is used for adjusting nozzle 13's orientation to draw its effect in this embodiment, and make nozzle 13 stable angle of keeping after the adjustment direction.

Specifically, the top ends of the support rods 14 are fixedly provided with stabilizing rings 24 connected end to end, the bottom ends of the adjusting rings 15 are embedded on the stabilizing rings 24 and can rotate along the stabilizing rings 24, the stabilizing rings 24 are annular expansion members in the embodiment, annular grooves are formed in the bottom ends of the adjusting rings 15, and the adjusting rings 15 are matched with the stabilizing rings 24 through interference.

Specifically, the two ends of the inner chamber 9 are connected through a rotating shaft and provided with sealing doors 8, the two ends of the outer furnace body 1 outside the sealing doors 8 are embedded with heat insulation plates 7, and the heat insulation plates 7 can be made of heat insulation ceramics and used for insulating heat.

The both ends that lie in outer furnace body 1 along the axial of outer furnace body 1 are connected and are equipped with extension furnace body 3, and the one end that extends furnace body 3 and keep away from sealing door 8 is connected through the pivot and is equipped with the insulated door 4 that can open and shut, and what can stagger when sealing door 8 and insulated door 4 use in this embodiment opens and closes to in reduce the heat loss rate.

Specifically, a plurality of exhaust pipes 11 vertically penetrate through the top ends of the inner chamber 9 and the outer furnace body 1.

Logical groove has been seted up to the bottom of interior chamber 9 and outer furnace body 1, and it is equipped with the chip removal board 16 that can deflect and open and shut to rotate the installation through the axis of rotation in leading to the groove, and the axis of rotation sets up at logical groove middle part along interior chamber 9 axial direction in this embodiment, and then makes chip removal board 16 use the axis of rotation to make a round trip to beat the pendulum and rotate.

Specifically, the lateral wall that the outside of adjustable ring 15 is located outer furnace body 1 rotates through the pivot to be connected and is equipped with access panel 2, and staff only need open access panel 2 and can adjust above-mentioned part when needs rotate adjustable ring 15 in this embodiment.

The working principle and the using process of the invention are as follows: in the using process of the forging furnace, a worker firstly opens the heat insulation door 4 and the sealing door 8, a workpiece to be processed is hung on the traction belt 6 through the hook, the expansion column on the traction belt 6 is convenient for the hook to hang, the traction belt 6 draws and displaces along the guide rail 5 during operation, and the workpiece is conveyed into the forging furnace.

During the use of the forging furnace, fuel is conveyed to the nozzle 13 through the fuel conveying pipe 17, is sprayed out through the nozzle 13, and is ignited to heat a workpiece passing through the forging furnace.

After the workpiece is heated to a preset temperature and for a long time, the traction belt 6 continues to pull the workpiece to move, the sealing door 8 in the traction direction of the traction belt 6 is opened at the moment, the heated workpiece reaches the inner side of the extension furnace body 3, then the sealing door 8 is closed, excessive heat loss in the inner chamber 9 is avoided, and a worker can open the heat insulation door 4 to take the workpiece out for reprocessing.

In the using process of the forging furnace, a worker can adjust the direction of the nozzle 13 according to the specification of a workpiece, so that flame sprayed out from the nozzle 13 can be directly opposite to the workpiece to be processed; when the worker adjusts the direction of the nozzle 13, the worker needs to manually open the access panel 2 and then manually rotate the adjusting bolt 22 to pull the traction frame 20.

Traction frame 20 draws one side displacement of in-process orientation traction section of thick bamboo 21, and then drive spacing lantern ring 19 and the inboard expansion ball 18 of spacing lantern ring 19 and move together, and then make fuel delivery pipe 17 the declination appear, fuel delivery pipe 17 deflects the in-process and drives nozzle 13 and together accomplish angle adjustment, the staff can manual rotation adjustable ring 15, when annular circular motion is done to adjustable ring 15 on stabilizing ring 24, can adjust nozzle 13's angle, make nozzle 13's shower nozzle can be towards treating the processing region, make the work piece of different specifications can be carried when the displacement transportation and treat the processing region and heat.

Nozzle 13 and fuel delivery pipe 17 adopt split type structure, can be convenient for replace fuel delivery pipe 17 or nozzle 13, nozzle 13 accomplishes the location through a location section of thick bamboo 29 and aims at in the fuel delivery pipe 17 connection process, spacing ring 28 cup joints when nozzle 13 or fuel delivery pipe 17's outer wall, can pass through the screw thread with extension ring 27 and close soon and be connected, make nozzle 13 and fuel delivery pipe 17 locking, the outside cover at nozzle 13 and fuel delivery pipe 17 is equipped with adjusts hemisphere 25, two adjust hemisphere 25 and connect through the screw thread soon, splice into the spheroid, be convenient for deflect in the inboard of two lock collars 12, be convenient for to nozzle 13 angle of adjustment.

All be equipped with a ripple protective barrel 23 in two outsides of adjusting hemisphere 25, ripple protective barrel 23 avoids adjusting hemisphere 25 and has the piece card in the gap region at rotatory in-process, promotes the stability when nozzle 13 adjusts, still is equipped with before two lock rings 12 and fills insulating layer 26, fills insulating layer 26 and further fills the gap between two lock rings 12, reduces the heat and passes through in the gap, and the forging furnace of being convenient for heats the processing to the metal.

Example 2

As shown in fig. 1 to 7, the present embodiment is different from embodiment 1 in that two telescopic rods symmetrically penetrate through the inner wall of the inner chamber 9, the telescopic rods may be electric telescopic rods, an arc-shaped clamping block is arranged at the telescopic end of the telescopic rod, an induction coil is arranged in the clamping block, and a large eddy current is generated in a metal workpiece during the energization process of the induction coil, so as to facilitate the heating treatment of the metal workpiece; the staff can also be equipped with rotatable drive roller in the flexible end installation of telescopic link, promotes the metal work piece displacement in the induction coil through drive roller.

In the description of this patent, it is to be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In this patent, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate agent, and may be used for communicating the inside of two elements or interacting relation of two elements, unless otherwise specifically defined, and the specific meaning of the terms in the patent may be understood by those skilled in the art according to specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The forging furnace for metal processing is characterized by comprising an inner chamber (9), wherein an outer furnace body (1) coaxial with the inner chamber (9) is sleeved on the outer side of the inner chamber (9), a plurality of partition plates (10) are uniformly arranged on the outer wall of the inner chamber (9), the other end of each partition plate (10) is connected with the inner wall of the outer furnace body (1), and a material conveying assembly is arranged in the inner chamber (9);

the utility model discloses a fuel injection device, including interior chamber (9), the lateral wall of interior chamber (9) evenly runs through and is equipped with a plurality of nozzles (13), the one end of nozzle (13) is connected with fuel delivery pipe (17), the tip cover that nozzle (13) and fuel delivery pipe (17) are relative is equipped with coupling assembling, nozzle (13) all overlaps with the one end outer wall that fuel delivery pipe (17) is relative and is equipped with regulation hemisphere (25), the lateral wall of interior chamber (9) is provided with and is used for carrying out spacing locking Assembly to regulation hemisphere (25), the outer wall cover of fuel delivery pipe (17) is equipped with expansion ball (18), the outside cover of expansion ball (18) is equipped with the traction assembly;

the outer wall that the outside of fuel delivery pipe (17) is located interior chamber (9) evenly is provided with a plurality of bracing pieces (14), the top of bracing piece (14) is equipped with adjustable ring (15), draw subassembly one end with adjustable ring (15) are connected.

2. The forging furnace for metal working as set forth in claim 1, wherein: the material conveying assembly comprises guide rails (5) which are symmetrically arranged on the inner wall of an inner cavity (9), sliding grooves are formed in the guide rails (5) along the axis of the inner cavity (9), a traction belt (6) is embedded in the sliding grooves, and a plurality of expansion columns are uniformly distributed on the traction belt (6).

3. The forging furnace for metal working as set forth in claim 1, wherein: coupling assembling is including setting up extension ring (27) at nozzle (13) and fuel delivery pipe (17) tip respectively, the outer wall cover of nozzle (13) or fuel delivery pipe (17) is equipped with spacing ring (28), spacing ring (28) close with extension ring (27) through the screw thread soon and are connected locking, two adjust hemisphere (25) and establish the lateral wall at nozzle (13) and fuel delivery pipe (17) respectively, and two adjust hemisphere (25) and close the connection soon through the screw thread.

4. The forging furnace for metal working as set forth in claim 1, wherein: the locking assembly comprises locking rings (12) which are screwed on the surfaces of the two sides of the inner cavity (9) through threads, and the outer walls, positioned on the adjusting hemispheres (25), of the inner sides of the two locking rings (12) are sleeved with filling heat-insulating layers (26);

nozzle (13) and fuel delivery pipe (17) outer wall all overlap and are equipped with a ripple protection section of thick bamboo (23), the other end of a ripple protection section of thick bamboo (23) is through lock ring (12) extrusion locking.

5. The forging furnace for metal working as set forth in claim 1, wherein: the traction assembly comprises a limiting sleeve ring (19), a traction frame (20) and a traction barrel (21), the limiting sleeve ring (19) is sleeved on an expansion ball (18) through interference fit, the traction frame (20) is rotationally connected with the limiting sleeve ring (19) through a rotating shaft, the traction barrel (21) is rotationally connected through the rotating shaft in the adjusting ring (15), one end of the traction frame (20) penetrates through the traction barrel (21), and one end, away from the limiting sleeve ring (19), of the traction frame (20) is provided with an adjusting bolt (22) through threaded screwing.

6. The forging furnace for metal working as set forth in claim 1, wherein: the top ends of the supporting rods (14) are fixedly provided with stabilizing rings (24) which are connected end to end, and the bottom ends of the adjusting rings (15) are sleeved on the stabilizing rings (24) and can rotate along the stabilizing rings (24).

7. The forging furnace for metal working as set forth in claim 1, wherein: two ends of the inner chamber (9) are connected with sealing doors (8) through rotating shafts, and heat insulation plates (7) are embedded at two ends of the outer furnace body (1) at the outer sides of the sealing doors (8);

the axial along outer furnace body (1) is located the both ends connection of outer furnace body (1) and is equipped with extension furnace body (3), the one end that sealed door (8) were kept away from in extension furnace body (3) is connected through the pivot and is equipped with thermal-insulated door (4) that can open and shut.

8. The forging furnace for metal working as set forth in claim 1, wherein: a plurality of exhaust pipes (11) vertically penetrate through the top ends of the inner chamber (9) and the outer furnace body (1);

the bottom of the inner chamber (9) and the bottom of the outer furnace body (1) are provided with through grooves, and chip removal plates (16) which can be deflected to open and close are rotatably arranged in the through grooves through rotating shafts.

9. The forging furnace for metal working as set forth in claim 1, wherein: the inner wall symmetry of inner chamber (9) is run through and is equipped with a plurality of telescopic links, and the flexible end of telescopic link is provided with the grip block, is equipped with induction coil in the grip block.

10. The forging furnace for metal working as recited in claim 1, wherein: the lateral wall that the outside of adjustable ring (15) is located outer furnace body (1) is rotated through the pivot and is connected and be equipped with access panel (2).