CN2869031Y

CN2869031Y - Induction heater cooling structure for High/medium frequency quenching machine tool

Info

Publication number: CN2869031Y
Application number: CNU200620109973XU
Authority: CN
Inventors: 付在再; 谢贵林
Original assignee: Changan Automobile Group Co Ltd
Current assignee: Changan Automobile Group Co Ltd
Priority date: 2006-02-18
Filing date: 2006-02-18
Publication date: 2007-02-14
Anticipated expiration: 2016-02-18

Abstract

The utility model provides a high or medium frequency induction heater cooling structure of quenching machine tool which comprises an induction heater and a quenching medium ejector arranged on the backside of the induction heater. A magnetizer is fixed to the heating coil of the induction heater, wherein the magnetizer taps off a branch pipe from the connected main pipe of the quenching medium ejector to be the quenching medium drench tube. The nozzle of the quenching medium drench tube is positioned on the upper side of the magnetizer of induction heater, and the organic quenching medium flowing from the drench tube nozzle continuously rinses the magnetizer fixed to the heating coil, not only at the same time continuously quenching and cooling the work piece with high frequency, but also constantly and directly cooling the magnetizer to prevent the magnetizer being heated, deformed and shed. Thus the overlong time of normal operation and stable performance of the magnetizer can be ensured, and the spot quenching of part of the large-scale ring and orbit parts can be proceeded continuously for an overlong time.

Description

The induction heater cooling structure of height/medium frequency quenching lathe

Technical field

The utility model relates to high frequency/medium frequency quenching machine tool technology, is specifically related to the induction heater cooling technology on the quenching machine.

Background technology

Height/medium frequency quenching lathe induction heater is to be made of heater coil, four parts such as magnetizer, cylinder manifold (pipe), web plate (pipe) and water-cooled tube attached on the heater coil.Load coil links to each other with output transformer on the high-frequency apparatus by web plate (pipe), and make electric current transfer to heater coil through cylinder manifold (pipe), the cooling-water flowing that is fed by water-cooled tube is behind hollow heater coil, flow out from the other end, thisly be called the indirect type of cooling by coil water quench and then the mode of taking away the magnetizer heat.If the accessory size of high-frequency quenching is little, be heated the regional little of quenching, heat-up time is not long, and the magnetizer surface temperature is not high, and the high-frequency quenching working process can normally be carried out.But when the continuous ultra-long time of high frequency, the heating quenching that do not stop (as large-scale ring ring face selective hardening), the radiant heat of zone generation influences and rising significantly because workpiece is heated attached to the meeting of the magnetizer surface temperature on the heater coil, the performance of magnetizer material is with instability, the magnetizer surface heat, smolder, even cracking comes off, and frequency heating quenched can't continue normally to carry out.

Summary of the invention

The purpose of this utility model is the deficiency at the prior art existence, propose a kind of high/the induction heater cooling structure of medium frequency quenching lathe, so that the continuous heating quenching of high frequency/intermediate frequency is long-time even ultra-long time normally carries out, with heat-affected zone of reducing the high-frequency quenching zone and the transitional region that reduces high-frequency quenching starting point and quenching end point.

The technical scheme that its technical problem that solves the utility model adopts is: a quenchant is installed above the magnetic conductor of height/medium frequency quenching lathe induction heater is watered the pouring pipe, drench the magnetizer that the effusive organic quenchant of the mouth of pipe constantly dashes suit on the pouring heater coil by watering, make in working long hours, constantly directly cool off magnetizer, its surface is constantly lowered the temperature to keep normal working temperature and state.To drench pipe be a bye-pass of being told by the main line to the quenchant injector of part high frequency jet quenchant that itself is had on height/medium frequency quenching lathe and quenchant waters, make to be pumped the Cooling Quenching medium of getting injection when spraying the parts quenching region surface, also spray the magnetizer on the heater coil.Spray the quenchant that dashes pouring magnetizer surface and can directly fall in the quenchant vat of lathe, will not waste.Reached high frequency long-time continuous heating quenching like this, and the purpose of magnetizer steady operation.

The beneficial effects of the utility model are: this structure is in quenchant high frequency continuous quenching cooling workpiece, also cool off magnetizer, guarantee magnetizer ultra-long time works better, make magnetizer do not generate heat, indeformable, do not come off, guarantee the magnetizer stable performance, can make that large-scale ring parts, class of track parts locally quench continuously, ultra-long time continues to carry out.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A profile of Fig. 1.

Among the figure: 1 heater coil, 2. magnetizer, 3. quenchant waters and drenches pipe, 4. quenchant injector, 5. garden ring parts 6. flow control valves, 7 main lines, 8 induction heaters.

Embodiment

Below in conjunction with drawings and Examples the utility model is described further:

In Fig. 1, be set with magnetizer 2 on the heater coil 1 of induction heater 8, the back of induction heater 8 is equipped with quenchant injector 4, in the main line 7 that is communicated with quenchant injector 4, divide and pick out a branch road, for watering, quenchant drenches pipe 3, quenchant waters heater coil 1 top that the mouth of pipe that drenches pipe 3 is set at induction heater, quenchant is constantly dashed drench the magnetizer 2 that adheres on the heater coil 1, water to drench on the pipe 3 at quenchant flow control valve 6 also is installed, be used to control the size of quenchant flow.

The magnetizer mode of operation that is cooled as can be seen in sectional view shown in Figure 2: when 5 rotations of large-scale garden ring parts, the upper and lower inclined-plane of V-type track of heater coil 1 local heating garden ring parts, quenchant injector 4 jet quenching along with 5 rotations of garden ring parts; Quenchant waters and drenches the also a part of quenchant of shunting from the main line of quenchant injector 4 of pipeline 3 simultaneously, constantly dashes from the heater coil top and drenches magnetizer 2, with cooling magnetizer 2, reduces its surface temperature.

Claims

1, the induction heater cooling structure of height/medium frequency quenching lathe includes induction heater (8) and is installed in the quenchant injector (4) at induction heater rear, is set with magnetizer (2) on the heater coil (1) of induction heater (8); It is characterized in that: divide to pick out a bye-pass in the main line (7) that is communicated with quenchant injector (4), drench pipe (3) for quenchant waters, quenchant waters magnetizer (2) top that the nozzle position that drenches pipe (3) is set at induction heater.

2, cooling structure according to claim 1 is characterized in that: quenchant waters to drench on the pipe (3) flow control valve (6) also is installed.