CN208853454U - A kind of roll electromagnetic induction heater - Google Patents

Abstract

The utility model relates to a kind of devices of roll electromagnetic induction heating.The device mainly includes: inductor, power module, crossbeam and location mobile device, system control module.Inductor conveys energy to roll by electromagnetic induction and changes roller temperature.Inductor is axially arranged along roll, apart from roller surface certain distance.Power module is directly to be connected and adjust energy output with sensor component.Crossbeam and location mobile device are used to adjust the relative position of inductor and roll.System control module contains PLC and communication module, the coordination and control for whole system.One or more inductors are axially arranged in roll, can carry out temperature adjusting to roll different zones.The present apparatus can realize the heating of the target area of roll with offline mode or online mode to change the thermal forming of roll.The utility model can realize quick hot-rolling, fast roll changing, have the advantages that compact-sized, environmental protection and energy saving.

Description

A kind of roll electromagnetic induction heater

Technical field

The utility model belongs to plate and strip rolling technology field.More particularly to a kind of induction heating apparatus for roll, fit For the heating of various rolls, roller heat convex degree learning control and Strip Shape control.

Background technique

During strip-rolling, the factor for influencing to carry roll gap is varied.These factors include: incoming profile, original Beginning roll shape, roll thermal crown, bearing block gap etc..It is the feasible method for changing roll gap shape that roll heating, which generates roll thermal crown,.

There are many ways and means for roll heating method general at present, and while realizing roll heating, there is also each Kind drawback.One is heated using roller heating stove to roll integral outer.Roll comes into operation after heating in heating furnace, to Roll is down to after operating temperature or less to be loaded into furnace again and be heated, and operates repeatedly.This heating method uses Inconvenience influences the working efficiency of milling train.Another heating method is to the water flowing of roll inside, logical oil, heats.Pass through one The water or oil for determining temperature carry out the purpose that temperature control is realized in heat exchange with roll body.Although this heating method realizes the online of roll Heating, but there is very prominent drawback, for example, heating time is long, energy consumption is high, is heated roll thermal inertia greatly, roller temperature control Precision processed is low, use cost height etc..In addition, in the industrial production, also by the mode hot-rolling of roll frictional heat generation.Hot-rolling mistake Cheng Zhong, roll bear biggish throw-on pressure and high speed rotation.This mode, influences production efficiency, there is more energy waste, and And have an impact to the service life of roll.In order to enable roll to be rapidly achieved thermal balance, also there is first milling waste volume in production Method carries out the rolling of qualified material again after roll reaches thermal balance.Which influences production efficiency, and tissue production is inconvenient.

Utility model content

The technical issues of the utility model actual needs solves is: existing roll heating device, some devices can not be It is line heating, inefficiency, inconvenient to use；Other devices then have that heating time is too long, energy consumption is especially high, operating cost is high The problems such as enterprise, while there is also be heated the drawback that roll thermal inertia is big, roller temperature control precision is low.

The utility model aims to solve the problem that above-mentioned technical problem, and provides a kind of roll heating device, realizes the online of roll Or offline high efficiency heating, realize that roll partition heating and temperature accurately control, and entire heating system can easily be thrown Enter or withdraw from, heating process is flexibly controllable.

To achieve the goals above, the utility model takes following technical scheme:

A kind of induction heating apparatus is set on roll stand.Heating device is moved by inductor, power module, crossbeam, position Dynamic device, system control module composition.Inductor is installed on floating mount on splayed crossbeam, for adding to roller surface Heat；Power module is used to controllably convey energy to inductor.Crossbeam and location mobile device are used to inductor being moved to mesh Cursor position, to realize the heating to target position.Location mobile device is driven by hydraulic way, while having displacement sensor progress Monitoring position.System control module includes PLC and communication module, control and co-ordination for whole system.Communicate mould Block can be carried out using Ethernet or serial communication mode.According to the PLC program logic write, system control module can receive letter Number input and export after treatment, such as receive location mobile device each sensor signal and to its performer output control Signal；Real time status information or the write-in work order of power module are read by communication module.

The inductor has specially designed shape.Inductor heating surface is for plane or integral planar and in middle part band circle Arc slot；The section parallel with flat heated is rectangle like, hexagon or circular arc and polygon combined shaped.

The inductor is integral using electrical insulating material encapsulation, and encapsulating material is epoxy resin.

The inductor setting forces cooling duct and interface, channel to include electric component with inductor and be isolated, Ke Yitong Enter compressed air, the cooling mediums such as water, oil.

The inductor uses floating type mounting structure, i.e. inductor tail portion is equipped with spring with installation bolt, bolt. When installation, spring is not directly contacted with inductor with mounting plate between inductor and mounting plate, is in quick condition.It is logical The angular adjustment that bolt comes deformation extent the realization inductor and mounting plate of adjustment spring is crossed, to adapt to cylindrical roll surface.

The crossbeam uses the mounting structure in splayed configuration, to adapt to roll curved surfaces.Crossbeam material be stainless steel or Aluminium alloy.

Location mobile device is driven using hydraulic way, and is equipped with displacement sensor.The hydraulic system has liquid Pressure lock.

In the above-mentioned technical solutions, the working method of the utility model is: during roll rotation, crossbeam and position Inductor is positioned to predetermined position and is kept by mobile device, and power module adds roll by way of electromagnetic induction Heat.The region of inductor heating is adjacent domain other than the part and contact zone edge that roller surface is contacted with strip, the area The axial width in domain is not more than 300 millimeters.Inductor sense heating surface and roller surface gap are 2~25 millimeters.Power module The energy size of adjustable output, to guarantee the stabilization of roller temperature and Thermal Profile.

The inductor, can axially or radially moving or locking along roll under the driving of location mobile device.Sense Answer the radial position of device opposite rolls using special positioning method, i.e. the radial displacement oil cylinder of location mobile device makes inductor It is contacted with roller surface, trigger sensor, after system control mould receives sensor signal, control sensor is reversely retracted default Distance and lock in the position.Correspondingly, the axial position of inductor opposite rolls is moved by the axial direction of location mobile device Position oil cylinder pushing inductor is to target position and locks in the position.All oil cylinders are equipped with displacement sensor to supervise in real time Survey its change in displacement.

The beneficial effect of utility model device is that the utility model heating device is by the way of electromagnetic induction to roll Carry out high-efficiency heating.Inductor has the structure of optimization, adapts to roll external cylindrical surface demand for heat, can conveniently realize online Or offline heating and temperature are kept.While position regulator drives inductor to target position, power module can be adjusted Section output energy, accurately heats the subregion of roll to realize.

Detailed description of the invention

Fig. 1 is the utility model induction heating apparatus general structure schematic diagram；

Fig. 2 is the signal of system control module main devices；

Fig. 3 is several typical structure patterns of inductor in Fig. 1；

Shown in Fig. 4 is the relative positional relationship of inductor and crossbeam assembly and roll.Which illustrate the eight of crossbeam The floating type installation form of character form structure and inductor.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination attached drawing, is described in further detail technical solutions of the utility model.

As shown in Figure 1, heating device 8 by inductor 4, power module 7 (being installed in system control module 6), crossbeam and Location mobile device 5, system control module 6 form.4 floating mount of inductor is on crossbeam and location mobile device 5, for giving The heating of 2 surface of roll；Power module 7 is used to controllably convey energy to inductor 4.It crossbeam and is used for location mobile device 5 Inductor 4 is moved to target position, crossbeam and location mobile device are driven by oil cylinder, and real by corresponding position sensor When monitor its position, to realize heating to target position；System control module 6 containing programmable logic controller (PLC) (PLC) 9 and Communication module 10, control and co-ordination for whole system.As shown in Figure 2.

As shown in figure 3, inductor 4 has multiple structural forms.On the whole, inductor 4 is by encapsulating integral head 403, tail portion installation bolt 402, cooling duct 411 and connecting cable 412 form.Wherein, sense heating surface 401 can be in flat Face is also possible to planar band intermediate groove 404, is mainly used for adapting to arcuate surface.4 cross sectional shape of inductor can be six sides Shape, rectangle, the group of polygon and circular arc run shape etc. jointly.The head 403 of inductor 4 is packaged into one by insulating materials epoxy resin Body.

As shown in figure 4, beam structure is in splayed.Inductor 4 uses floating type mounting structure.I.e. on inductor head Spring 410 is equipped between 403 and crossbeam and location mobile device 5.410 sets of the spring is on bolt 402.Pass through tune The deformation extent of spring is saved, realizes that the angle of inductor and crossbeam adjusts.

When needing multiple inductors 4 to heat surface, inductor 4 can be staggered to multiple rows of.It in this way can be with Heating dead zone is avoided the occurrence of, 2 temperature consistency of working roll is kept.As shown in Figure 1.

8 course of work of this heating device are as follows: working roll 2 rotates, and inductor 4 is close to roll surface.Crossbeam and location mobile device 5 In the case where hydraulic system and oil cylinder act on entirely, so that inductor 4 is moved to target position and lock.Inductor can be along 2 axis of working roll To with move radially.Inductor 4 is passed through cooling medium, and system control module 6 makes power module 7 devote oneself to work, and heating starts.When Working roll 2 make it temperature when, inductor 4 stop to working roll 2 heat.Terminate in production, unit exception, fire etc. In the case of, inductive head 4 can quickly be withdrawn from and far from roll.

It is to be understood that: above description is representative instance of the invention, is not limitations of the present invention, In the utility model conception range, addition, transformation, replacement for being carried out etc. be should also belong to the protection scope of the utility model.

Claims (10)

1. a kind of roll electromagnetic induction heater is set on roll stand, it is characterised in that: heating device is by inductor, electricity Source module, crossbeam and location mobile device, system control module composition, inductor are fixed on crossbeam and location mobile device simultaneously It is connected with the power supply module, inductor is positioned to target position and kept by crossbeam and location mobile device, and inductor passes through electricity The mode of magnetic induction heats roll, and under the action of system control module, power module adjusts be output to induction in real time The energy of device.

2. roll electromagnetic induction heater as described in claim 1, it is characterised in that: inductor can along roll axial direction or It moves radially or locks.

3. roll electromagnetic induction heater as described in claim 1, it is characterised in that: inductor heating surface is plane or entirety Plane and middle part band arc groove, the section parallel with flat heated be rectangle like, hexagon or circular arc combined with polygon Shape.

4. roll electromagnetic induction heater as described in claim 1, it is characterised in that: inductor is sealed using electrical insulating material One is dressed up, encapsulating material is epoxy resin, and inductor tail portion is with installation bolt.

5. roll electromagnetic induction heater as described in claim 1, it is characterised in that: it is cooling logical that inductor is provided with pressure Road, the channel are isolated with the electric component encapsulated in inductor and can be passed through cooling medium.

6. roll electromagnetic induction heater as described in claim 1, it is characterised in that: inductor is tied using floating type installation Structure, i.e. inductor tail portion are equipped with spring, make adjustable angle between inductor and crossbeam by the tightness difference of spring.

7. roll electromagnetic induction heater as described in claim 1, it is characterised in that: crossbeam is equipped with the installation knot of splayed configuration Structure, crossbeam material are stainless steel or aluminium alloy.

8. roll electromagnetic induction heater as described in claim 1, it is characterised in that: location mobile device is by band hydraulic lock Hydraulic system driving, and be equipped with displacement sensor.

9. roll electromagnetic induction heater as described in claim 1, which is characterized in that the radial positioning of inductor opposite rolls Mode is that crossbeam with shift unit contacts inductor with roller surface, and subsequently reverse direction retracts fixed range and is locked in the position It sets.

10. roll electromagnetic induction heater as described in claim 1, it is characterised in that: the region of inductor heating is roll Adjacent domain other than part that surface is contacted with strip and contact zone edge, inductor sense heating surface and roller surface gap It is 2~25 millimeters.