CN217275528U

CN217275528U - Material bridge clearing device of vacuum induction furnace

Info

Publication number: CN217275528U
Application number: CN202220163184.3U
Authority: CN
Inventors: 刘明辉; 李俊; 沈宝宏
Original assignee: Herz Special Metallurgy Plant Shanghai Co ltd
Current assignee: Herz Special Metallurgy Plant Shanghai Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-08-23
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to a vacuum induction furnace material bridging clearing device, include: a smelting crucible is arranged in the smelting chamber, and the corrugated pipe is connected and fixed on the smelting chamber through a flange; a driving mechanism is arranged above the corrugated pipe; the driving mechanism drives the material smashing rod to rotate the materials in the smelting crucible; can make things convenient for the on-the-spot workman to know the interior melting state of stove in real time through smelting room top observation window, master and smash the material stick direction and go deep into the crucible degree of depth, under the condition of not breaking vacuum, drive and smash the material stick and remove, through bellows and spheroid mechanism, can flexibly realize 0-60 wide-angle adjustment smash the material stick and move the orbit in smelting the crucible, destroy the solid state material inter-room distribution of metal bath upper portion "bridge" by force, make the irregular solid state material in upper portion fall into the molten metal, eliminate the "bridge" of intercrossing formation between the solid state material, the utility model has the advantages of compact structure, convenient to use, easy operation.

Description

Material bridge clearing device of vacuum induction furnace

Technical Field

The embodiment of the utility model relates to a clearing device, in particular to vacuum induction furnace material bridging clearing device.

Background

The vacuum induction melting furnace heats the furnace charge by utilizing eddy current generated in a metal conductor by electromagnetic induction under the vacuum condition so as to melt the metal. Specifically, an alternating current power supply with a certain frequency is generally divided into a medium frequency and a power frequency, an alternating magnetic field is generated when alternating current passes through a coil on a crucible, eddy current with a certain depth can be generated on the surface of a material to be smelted by the magnetic field according to the Faraday electromagnetic induction principle, and then the metal material in the crucible is melted by heating the eddy current. When the smelted material is a steel metal material, molten steel in an alternating magnetic field can generate relative motion under the action of electromagnetic field force, and then a stirring-like effect is generated according to the distribution condition of the magnetic field, so that the molten steel is turned over and smelted fully, and the smelted material is more uniform and high-quality.

In the preparation stage of smelting production of the vacuum induction furnace, according to the component requirements of smelting steel, the raw materials required by on-site configuration comprise pure iron blocks, ferrochrome blocks, nickel plates, ferromolybdenum blocks, ferroniobium blocks, chromium metal blocks, aluminum ingots and other solid materials which are melted and batched, the solid materials can cross over the upper part of the metal molten pool to form bridges, in order to avoid the formation of metal rings or bridges on liquid metal, operators in the present stage can tilt the furnace body forwards or backwards through a mechanical mechanism outside the smelting crucible to melt the bridges or the metal rings, in the actual operation process, particularly in the beginning stage of smelting, because the amount of liquid metal is small, the solid materials of the bridges on the upper part can not be melted through tilting the furnace body, namely, under the condition of no vacuum, the solid materials of the bridges on the upper part of the metal molten pool are forcedly broken through an external mechanical structural component to distribute among the solid materials, so that irregular solid materials on the upper part fall into molten metal, therefore, the elimination of the 'bridge' formed by the mutual crossing of the solid materials becomes an important technical problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model aims to provide a vacuum induction furnace material bridging clearing device who eliminates "bridging" that intercrossing formed between the solid-state material.

In order to achieve the above object, the utility model discloses an embodiment has designed a vacuum induction furnace material bridging clearing device, a serial communication port, include:

a smelting chamber, wherein a smelting crucible is arranged in the smelting chamber,

the corrugated pipe is fixedly connected to the smelting chamber through a flange;

a driving mechanism provided above the bellows;

the driving mechanism drives the material smashing rod to rotate the materials in the smelting crucible.

Further, a connecting flange is fixedly arranged above the smelting chamber; a second flange is arranged between the corrugated pipe and the driving mechanism; a first flange is arranged between the corrugated pipe and the connecting flange.

Further, an observation window is arranged above the smelting chamber; the connecting flange is arranged on one side of the observation window.

Further, the driving mechanism further includes:

the main driving shaft penetrates through the handle, the guide shaft seat, the first synchronous gear and the bracket, and is movably connected in the bracket; the penetrating handle, the guide shaft seat, the first synchronous gear and the support are sequentially coaxially sleeved on the main driving shaft from left to right, the support is fixed at the lower end of the driving shaft seat, and the guide shaft seat is fixed at the lower end of the driving shaft seat through a bolt;

the lower end of the driving shaft seat is connected with a second flange through a bolt, and a top cover is fixed at the upper end of the driving shaft seat through a bolt;

the driven shaft penetrates through the first bearing seat and the second bearing seat, a gear is arranged at the center of the driven shaft, and the first bearing seat, the gear, the second bearing seat and the second synchronous gear are sequentially and coaxially sleeved on the driven shaft from left to right; the second synchronous gear is coaxially connected with the gear;

a belt connecting the first synchronizing gear with the second synchronizing gear.

Furthermore, the first bearing seat and the second bearing seat are arranged above the driving shaft seat in opposite directions.

Further, the handle drives the main driving shaft to rotate to drive the first synchronous gear to rotate together, the belt drives the first synchronous gear and the second synchronous gear to drive the driven shaft to rotate together, the driven shaft drives the rack to move up and down, and the rack penetrates through the top cover and enters the driving shaft seat; the lower end of the rack is fixedly connected with a material smashing rod through a joint, and the material smashing rod moves up and down in the smelting crucible.

Furthermore, one end of the material smashing rod is sleeved on the rack, and the joint is connected with the rack through a key pin to fix the material smashing rod and the rack.

Furthermore, the material smashing rod penetrates through the connecting flange, the corrugated pipe and the driving mechanism, a metal mesh is fixed at the lower end of the material smashing rod, a ball body is arranged at one end of the material smashing rod, and the material smashing rod rotates within an angle of- ° in the smelting crucible through the ball body.

Furthermore, the ball body is in clearance fit with the ball seat, so that the ball body shakes on the ball seat to drive the material smashing rod to rotate in the smelting crucible at an angle of 0-60 degrees; the ball seat is fixed in the first flange through a connecting ring.

Furthermore, a plurality of groups of sealing rings are arranged between the material smashing rod and the second flange.

Compared with the prior art, the embodiment of the utility model, can make things convenient for the site worker to know the interior state of smelting in real time through the observation window of smelting room top, grasp smash the material stick direction and go deep into the crucible degree of depth, under the condition of not breaking vacuum, artifical hand handle drives smash the material stick and removes, through bellows and spheroid mechanism, can realize 0-60 wide-angle adjustment flexibly and smash the material stick and move the orbit in smelting the crucible, destroy the solid state material of molten metal bath upper portion "bridge" and distribute between, make the irregular solid state material in upper portion fall into the molten metal, thereby eliminate the "bridge" of intercrossing formation between the solid state material, further reduce workman intensity of labour, improve work efficiency. The lower end of the material pounding rod is provided with the metal mesh, so that scum on the surface of molten steel can be adsorbed by the metal mesh during molten steel casting or sampling operation. The utility model provides a vacuum induction furnace material bridging clearing device has compact structure, convenient to use, easy operation.

Drawings

FIG. 1: is a front view of the structure of the invention;

FIG. 2: is an enlarged view of the position I in FIG. 1;

FIG. 3: is a cross-sectional view A-A of FIG. 1;

FIG. 4: is an enlarged view of position II in FIG. 3;

FIG. 5: is an enlarged view of position III in FIG. 4;

FIG. 6: is a right view of the structure of the present invention;

FIG. 7: is an enlarged view of the position IV in FIG. 6;

FIG. 8: is a top view of the inventive structure;

in the drawings: 1-smelting chamber, 11-smelting crucible, 12-observation window, 2-connecting flange, 3-corrugated pipe, 31-first flange, 32-second flange, 4-driving mechanism, 41-driving shaft, 411-handle, 412-guide shaft seat, 413-first synchronizing gear, 414-bracket, 42-driving shaft seat, 421-top cover, 43-driven shaft, 431-first bearing seat, 432-second bearing seat, 433-gear, 434-second synchronizing gear groove, 44-belt, 5-rack, 51-joint, 6-material-smashing rod, 61-metal net, 62-sphere, 63-ball seat, 64-connecting ring and 65-sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

The utility model relates to a vacuum induction furnace material bridging clearing device, as shown in figures 1-8,

the method comprises the following steps: a melting crucible 11 is arranged in the melting chamber 1, and the melting crucible 11 is mainly used for melting liquid metal. The melting chamber 1 is mainly used for forming a vacuum state.

The corrugated pipe 3 is fixedly connected on the smelting chamber 1 through a flange; the bellows 3 mainly plays a role of connection.

A driving mechanism 4 is arranged above the corrugated pipe 3; the driving mechanism 4 mainly plays a role of driving the material smashing rod 6;

the driving mechanism 4 drives the material smashing rod 6 to rotate the material in the smelting crucible 11.

In the embodiment, under the condition of no vacuum, the driving mechanism 4 drives the material smashing rod 6 to move, the running track of the material smashing rod in the melting crucible can be flexibly adjusted by a large angle of 0-60 degrees through the corrugated pipe 3 and the ball mechanism, the distribution of solid materials of a bridge at the upper part of a metal melting pool is forcedly damaged, irregular solid materials at the upper part fall into molten metal, the bridge formed by mutual crossing of the solid materials is eliminated, the labor intensity of workers is further reduced, and the working efficiency is improved.

In order to achieve the technical problem, as shown in fig. 1, a connecting flange 2 is fixedly arranged above a smelting chamber 1; a second flange 32 is arranged between the corrugated pipe 3 and the driving mechanism 4; a first flange 31 is arranged between the bellows 3 and the connecting flange 2. This forms a flexible structure of the bellows 3 in a state where the vacuum is maintained. So that the driving mechanism 4 keeps flexibility in the process of driving the material smashing rod 6 to rotate, and the vacuum state of the smelting chamber 1 is not damaged.

In order to achieve the above technical problem, as shown in fig. 1, an observation window 12 is arranged above the smelting chamber 1; the connecting flange 2 is arranged on one side of the viewing window 12. The observation window 12 is mainly used for observing the condition in the smelting chamber 1, and the observation window 12 above the smelting chamber 1 can facilitate field workers to know the smelting state in the furnace in real time and master the direction of the material smashing rod 6 and the depth of the material smashing rod penetrating into the crucible.

In order to achieve the above technical problem, as shown in fig. 1 to 8, the driving mechanism 4 further includes:

a main driving shaft 41 penetrating the handle 411, the guide shaft seat 412, the first synchronizing gear 413 and the bracket 414, the main driving shaft 41 being movably connected in the bracket 414; the through handle 411, the guide shaft seat 412, the first synchronizing gear 413 and the bracket 414 are sequentially coaxially sleeved on the main driving shaft 41 from left to right, the bracket 414 is fixed at the lower end of the driving shaft seat 42, and the guide shaft seat 412 is fixed at the lower end of the driving shaft seat 42 through a bolt; the handle 411 drives the main drive shaft 41 to rotate.

The lower end of the driving shaft seat 42 is connected with the second flange 32 through a bolt, and the top cover 421 is fixed at the upper end of the driving shaft seat 42 through a bolt;

the driven shaft 43, the driven shaft 43 passes through the first bearing seat 431 and the second bearing seat 432, the gear 433 is arranged at the center position of the driven shaft 43, and the first bearing seat 431, the gear 433, the second bearing seat 432 and the second synchronous gear 434 are sequentially coaxially sleeved on the driven shaft 43 from left to right; the second synchronizing gear 434 is coaxially connected with the gear 433;

the belt 44 connects the first synchronizing gear 413 with the second synchronizing gear 434. The belt 44 is used for transmission between the first synchronizing gear 413 and the second synchronizing gear 434;

the handle 411 drives the main driving shaft 41 to rotate, drives the first synchronizing gear 413 to rotate, drives the second synchronizing gear 434 to rotate through the belt 44, drives the gear 433 to rotate, drives the rack 5 to move up and down, and finally drives the material smashing rod 6 to rotate.

In order to achieve the above technical problem, as shown in fig. 1 to 8, the first bearing seat 431 and the second bearing seat 432 are disposed above the driving shaft seat 42 in opposite directions, so as to form a fixed structure of the first bearing seat 431 and the second bearing seat 432.

In order to achieve the above technical problem, as shown in fig. 1 to 8, further, the handle 411 drives the main driving shaft 41 to rotate to drive the first synchronizing gear 413 to rotate together, the belt 44 drives the first synchronizing gear 413 and the second synchronizing gear 434 and drives the driven shaft 43 to rotate together, the driven shaft 43 drives the rack 5 to move up and down, and the rack 5 passes through the top cover 421 and enters the driving shaft seat 42; the lower end of the rack 5 is fixedly connected with a material smashing rod 6 through a joint 51, and the material smashing rod 6 moves up and down in the smelting crucible 11.

In order to achieve the technical problem, as shown in fig. 1 to 8, one end of the tamper 6 is sleeved on the rack 5, and the joint 51 fixes the tamper 6 and the rack 5 through a key pin connection. The structure that the rack 5 drives the material smashing rod 6 to rotate is ensured.

In order to realize the technical problem, as shown in fig. 1-8, the tamper 6 penetrates into the connecting flange 2, the bellows 3 and the driving mechanism 4, a metal mesh 61 is fixed at the lower end of the tamper 6, a ball 62 is arranged at one end of the tamper 6, and the tamper 6 rotates in the melting crucible at an angle of 0-60 degrees through the ball 62. The corrugated pipe 3 is ensured to form flexible connection in the rotation process of the material ramming rod 6.

In order to realize the technical problem, as shown in fig. 1-8, a ball 62 is in clearance fit with a ball seat 63, so that the ball 62 shakes on the ball seat 63 to drive the material smashing rod 6 to rotate in the melting crucible by an angle of 0-60 degrees; the ball seat 63 is fixed in the first flange 31 by a connection ring 64. The material ramming rod 6 is guaranteed to be capable of forming a flexible connecting structure in the rotating process.

In order to achieve the above technical problem, as shown in fig. 1 to 8, a plurality of sets of sealing rings 65 are arranged between the tamper bar 6 and the second flange 32. The sealing structure is mainly used for sealing the material smashing rod 6 and the second flange 32.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims

1. The utility model provides a vacuum induction furnace material bridging clearing device which characterized in that includes:

a smelting chamber (1), a smelting crucible (11) is arranged in the smelting chamber (1),

the corrugated pipe (3), the corrugated pipe (3) is fixed on the smelting chamber (1) through flange connection;

a drive mechanism (4), wherein the drive mechanism (4) is arranged above the corrugated pipe (3);

the driving mechanism (4) drives the material smashing rod (6) to rotate the materials in the smelting crucible (11).

2. The vacuum induction furnace material bridge clearing device according to claim 1, characterized in that a flange (2) is fixedly connected above the melting chamber (1); a second flange (32) is arranged between the corrugated pipe (3) and the driving mechanism (4); a first flange (31) is arranged between the corrugated pipe (3) and the connecting flange (2).

3. The vacuum induction furnace material bridge clearing device according to claim 2, characterized in that an observation window (12) is arranged above the melting chamber (1); the connecting flange (2) is arranged on one side of the observation window (12).

4. The vacuum induction furnace material bridge removal device according to claim 1, wherein the driving mechanism (4) further comprises:

the main driving shaft (41) penetrates through the handle (411), the guide shaft seat (412), the first synchronizing gear (413) and the support (414), and the main driving shaft (41) is movably connected in the support (414); the penetrating handle (411), the guide shaft seat (412), the first synchronizing gear (413) and the support (414) are sequentially and coaxially sleeved on the main driving shaft (41) from left to right, the support (414) is fixed at the lower end of the driving shaft seat (42), and the guide shaft seat (412) is fixed at the lower end of the driving shaft seat (42) through bolts;

the lower end of the driving shaft seat (42) is connected with a second flange (32) through a bolt, and a top cover (421) is fixed at the upper end of the driving shaft seat (42) through a bolt;

the driven shaft (43) penetrates through the first bearing seat (431) and the second bearing seat (432), a gear (433) is arranged at the center of the driven shaft (43), and the first bearing seat (431), the gear (433), the second bearing seat (432) and the second synchronous gear (434) are sequentially coaxially sleeved on the driven shaft (43) from left to right; the second synchronous gear (434) is coaxially connected with the gear (433);

a belt (44), the belt (44) connecting the first synchronizing gear (413) with the second synchronizing gear (434).

5. The vacuum induction furnace material bridge clearing device according to claim 4, wherein the first bearing seat (431) and the second bearing seat (432) are oppositely arranged above the driving shaft seat (42).

6. The vacuum induction furnace material bridge clearing device according to claim 4, wherein the handle (411) drives the main driving shaft (41) to rotate to drive the first synchronizing gear (413) to rotate together, the belt (44) drives the first synchronizing gear (413) and the second synchronizing gear (434) and drives the driven shaft (43) to rotate together, the driven shaft (43) drives the rack (5) to move up and down, and the rack (5) penetrates through the top cover (421) to enter the driving shaft seat (42); the lower end of the rack (5) is fixedly connected with a material smashing rod (6) through a joint (51), and the material smashing rod (6) moves up and down in the smelting crucible (11).

7. The vacuum induction furnace material bridge clearing device according to claim 6, wherein one end of the tamper bar (6) is sleeved on the rack (5), and the joint (51) fixes the tamper bar (6) and the rack (5) through key pin connection.

8. The vacuum induction furnace material bridge clearing device according to claim 7, wherein the material smashing rod (6) penetrates into the connecting flange (2), the corrugated pipe (3) and the driving mechanism (4), a metal net (61) is fixed at the lower end of the material smashing rod (6), a ball body (62) is arranged at one end of the material smashing rod (6), and the material smashing rod (6) can rotate in the melting crucible by an angle of 0-60 degrees through the ball body (62).

9. The vacuum induction furnace material bridge clearing device according to claim 8, characterized in that the ball body (62) is in clearance fit with the ball seat (63), so that the ball body (62) swings in the ball seat (63) to drive the material smashing rod (6) to rotate in the smelting crucible by an angle of 0-60 degrees; the ball seat (63) is fixed in the first flange (31) through a connecting ring (64).

10. The vacuum induction furnace material bridge clearing device according to claim 9, characterized in that a plurality of sets of sealing rings (65) are arranged between the material smashing rod (6) and the second flange (32).