CN209893926U - Online induction heating furnace of square billet - Google Patents

Abstract

The utility model relates to a square billet heating furnace, in particular to an online square billet induction heating furnace, which comprises a billet conveying device, a heater, a hot material turnover mechanism, a discharge platform and a power supply device which are connected in sequence; the blank conveying device comprises a motor, a driving shaft and a V-shaped roller, the V-shaped roller is detachably arranged on the driving shaft, the motor is connected with the driving shaft through a coupler, and the motor rotates to drive the V-shaped roller to rotate; the blank conveying device penetrates through the heater, the front end of the blank conveying device is provided with a discharging platform, and the rear end of the blank conveying device is provided with a hot material turnover mechanism; the hot material turnover mechanism consists of a driving shaft, a rocker arm and a material stirring rod, wherein the driving shaft is driven by a driving motor to rotate and is connected with the rocker arm, and the material stirring rod is arranged on the rocker arm; the power supply system provides electric energy for the whole device; the heater power is matched to the batch delivery unit run time. The utility model discloses can realize in the short time that the blank rapid heating reaches rolling temperature, reduce the oxidation time.

Description

Online induction heating furnace of square billet

Technical Field

The utility model relates to a square billet heating furnace, concretely relates to online induction heating furnace of square billet.

Background

With the development of economy and the improvement of science and technology, the domestic demand for the special steel product quantity is continuously increased. The special steel products are also developed in the directions of various varieties, various specifications, high precision, high performance, high technical content and high added value.

The increase of the demand causes special steel processing manufacturers to be more willing to invest in researching and developing special steels with high performance and high added value.

At present, a square billet is heated to a rolling temperature by a gas furnace, the heating time is long, and the surface of the billet is oxidized more; the temperature of the blank is supplemented before rolling through an induction furnace.

When the two types of furnace bodies are used for heating, the surface of the blank is oxidized more and the burning loss of the blank is increased due to long heating time. Although the adoption of the induction furnace for temperature compensation can reduce the oxidation time of the blank at high temperature, the early investment and the equipment maintenance cost of a user are increased, and the heating is completed by matching with other equipment, so that the production is not flexible enough.

When the gas furnace is adopted for heating, long-time equipment operation is caused, the gas consumption is high, the operation cost of enterprises is high, and the risk of overburning exists on the surface of a blank.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned defect, providing an online induction heating furnace of square billet, through induction heating with blank direct heating to rolling temperature in the short time, equipment opens and stops in a flexible way, can adopt an equipment to realize the production requirement of multiple steel, the flexibility of production improves greatly, the equipment maintenance overhauls convenient simple more, the disposable investment of equipment has been reduced simultaneously.

The technical scheme of the utility model: an online induction heating furnace for square billets comprises a billet conveying device, a heater, a hot material turnover mechanism, a discharge platform and a power supply device which are sequentially connected;

the blank conveying device comprises a motor, a driving shaft and a V-shaped roller, the V-shaped roller is detachably arranged on the driving shaft, the motor is connected with the driving shaft through a coupler, and the motor rotates to drive the V-shaped roller to rotate; the blank conveying device penetrates through the heater, the front end of the blank conveying device is provided with a discharging platform, and the rear end of the blank conveying device is provided with a hot material turnover mechanism;

the hot material turnover mechanism consists of a driving shaft, a rocker arm and a material stirring rod, wherein the driving shaft is driven by a driving motor to rotate and is connected with the rocker arm, and the material stirring rod is arranged on the rocker arm;

the power supply system provides electric energy for the whole device;

the heater power is matched to the batch delivery unit run time.

Preferably, the motor of the blank conveying device is a variable frequency motor, and a driving shaft of the blank conveying device is a hollow water-cooling shaft.

Preferably, the blanking table is a rigid support structure arranged at the front end of the blank conveying device, and an inclined guide roller is laid on the blanking table, so that a worker can overturn the blank onto the V-shaped roller.

Preferably, the discharging table is an automatic feeding table.

Preferably, the driving shaft of the blank conveying device is internally provided with a hollow shaft structure, one end part of the driving shaft is provided with a rotary water-cooling bearing, the other end of the driving shaft is provided with a sealing structure and is connected with the coupler, a water inlet pipe is further arranged inside the driving shaft, and water enters one end of the hollow shaft through the water inlet pipe, flows back to the water inlet and flows out through the water-cooling bearing.

Preferably, a blank detection device is further provided for monitoring the position of the blank so as to start and stop the operation of the apparatus.

The utility model has the advantages that:

1. the utility model can heat the blank to the rolling temperature in a short time from the normal temperature, thereby greatly reducing the oxidation time, and having less generated oxides and less burning loss; the device can detect the position of the blank through the blank detection device, the heater is automatically started after the blank enters the heater, and the power supply device is automatically powered off when the blank leaves the heater, so that the power supply of the device is started and stopped, and the production operation is flexible.

2. The induction heating furnace has an on-line heating capability.

3. The blank continuously runs, the cold end enters and the hot end exits.

Drawings

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

fig. 2 is a diagram of the position relationship of the components of the present invention:

in the figure: the method comprises the following steps of 1-a power supply system, 2-a hot material turnover mechanism, 3-a heater, 4-a discharging table, 5-a blank conveying device, 6-a motor, 7-a V-shaped roller, 8-a material poking rod and 9-a rocker arm.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various modifications and changes may be made by those skilled in the art after reading the teachings of the present invention, and that such equivalents also fall within the scope of the appended claims.

As shown in fig. 1, the online induction heating furnace for square billets comprises a billet conveying device 5, a heater 3, a hot material turnover mechanism 2, a discharging platform 4 and a power supply device 1 which are connected in sequence. The heater 3 power is matched to the batch delivery device 5 operating time. And a blank detection device is also arranged for detecting the position of the blank. The power supply system 1 supplies electric energy to the whole device.

The blank conveying device 5 comprises a motor 6, a driving shaft and a V-shaped roller 7, the V-shaped roller 7 is detachably arranged on the driving shaft, the motor 6 is connected with the driving shaft through a coupler, and the motor 6 rotates to drive the V-shaped roller 7 to rotate; the blank conveying device 5 passes through the heater 3, the front end of the blank conveying device is provided with a discharging platform 4, and the rear end of the blank conveying device is provided with a hot material turnover mechanism 2.

The hot material turnover mechanism 2 is composed of a driving shaft, a rocker arm 9 and a material stirring rod 8, the driving shaft is driven by a driving motor to rotate, the driving shaft is connected with the rocker arm 9, and the material stirring rod 8 is arranged on the rocker arm 9. The motor 6 of the blank conveying device 5 is a variable frequency motor, and a driving shaft of the blank conveying device is a hollow water-cooling shaft. The driving shaft of the blank conveying device 5 is internally provided with a hollow shaft structure, one end part of the driving shaft is provided with a rotary water-cooling bearing, the other end of the driving shaft is provided with a sealing structure and is connected with a coupler, a water inlet pipe is further arranged inside the driving shaft, and water enters one end of the hollow shaft through the water inlet pipe, flows back to the water inlet and flows out through the water-cooling bearing.

The blanking table 4 is a rigid support structure mounted at the front end of the blank conveying device 5, on which inclined guide rollers are laid, and the blank is placed thereon (another embodiment is an automatic feeding table).

The discharge table 4 serves for temporarily storing blanks. The worker firstly uses a crown block to place the blank on the discharging trolley, and the blank is turned over to the V-shaped roller 7 of the blank conveying device in a turning manner.

The heater 3 uses the electromagnetic induction heating principle to rapidly heat and raise the temperature of the blank passing through the heater.

During operation, blanks are placed on the discharging table 4 by using a crown block, the blanks are manually turned down one by one to enter the V-shaped rollers 7 of the blank conveying device 5, the V-shaped rollers 7 are driven to rotate by the rotation of the motor 6, the blanks are placed on the V-shaped rollers 7, the blanks are driven by the motor 6 to do linear motion, and the blanks placed on the rollers enter the heater 3; because the section of the blank is square, the vertical surface of the V-shaped roller 7 is 90 degrees, two right-angle edges of the square blank are respectively in line contact with the V-shaped roller 7, and when the V-shaped roller 7 rotates, the V-shaped roller 7 drives the blank to move forwards through friction force; heater 3 is through the principle of electromagnetic induction heating for the blank temperature risees, inside blank conveyor 5 sends the blank into heater 3 a bit by bit, because the drive of 5 motor 6 of blank conveyor, the blank is the motion of hot material tilting mechanism 2 always, when the blank reachs hot material tilting mechanism 2, its surface temperature satisfies rolling demand with core temperature, will heat the material upset through hot material tilting mechanism 2, place on the roll table before rolling, hot material tilting mechanism 2's driving shaft drive rocking arm 9 drives the shift fork and is curvilinear motion, it breaks away from the production line to drive the blank from V type roller 7. By calculation the blank placement position is exactly on the circumference passed by the kick-off bar 8, so that the blank is lifted from the blank conveyor and placed on the next stage of the conveyor. Physical movement of the blank is achieved.

Claims (6)

1. An online induction heating furnace for square billets is characterized by comprising a billet conveying device (5), a heater (3), a hot material turnover mechanism (2), a discharging platform (4) and a power supply system (1) which are sequentially connected;

the blank conveying device (5) comprises a motor (6), a driving shaft and a V-shaped roller (7), the V-shaped roller (7) is detachably mounted on the driving shaft, the motor (6) is connected with the driving shaft through a coupler, and the motor (6) rotates to drive the V-shaped roller (7) to rotate; the blank conveying device (5) penetrates through the heater (3), the front end of the blank conveying device is provided with a discharging platform (4), and the rear end of the blank conveying device is provided with a hot material turnover mechanism (2);

the hot material turnover mechanism (2) consists of a driving shaft, a rocker arm (9) and a material stirring rod (8), the driving shaft is driven by a driving motor to rotate, the driving shaft is connected with the rocker arm (9), and the material stirring rod (8) is arranged on the rocker arm (9);

the power supply system (1) provides electric energy for the whole device;

the power of the heater (3) is matched with the running time of the blank conveying device (5).

2. An in-line induction heating furnace for billets as claimed in claim 1, characterised in that: the motor (6) of the blank conveying device (5) is a variable frequency motor, and a driving shaft of the variable frequency motor is a hollow water-cooling shaft.

3. An in-line induction heating furnace for billets as claimed in claim 1, characterised in that: the discharging platform (4) is a rigid supporting structure arranged at the front end of the blank conveying device (5), an inclined guide roller is paved on the rigid supporting structure, and the blanks are placed on the inclined guide roller.

4. An in-line induction heating furnace for billets as claimed in claim 1, characterised in that: the discharging table (4) is an automatic feeding table.

5. An in-line induction heating furnace for billets as claimed in claim 1, characterised in that: the interior of a driving shaft of the blank conveying device (5) is of a hollow shaft structure, a rotary water-cooling bearing is installed at one end of the driving shaft, the other end of the driving shaft is of a sealing structure and is connected with a coupler, a water inlet pipe is installed in the driving shaft, water enters one end of the hollow shaft through the water inlet pipe and flows back to the water inlet, and the water flows out through the water-cooling bearing.

6. An in-line induction heating furnace for billets as claimed in claim 1, characterised in that: a blank detection device is also arranged.

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