CN2461936Y

CN2461936Y - Multilayer rotary disk type bainite isothermal quenching appts.

Info

Publication number: CN2461936Y
Application number: CN 01200837
Authority: CN
Inventors: 孙一凡
Original assignee: Aixielin Industrial Furnace Engineering Beijing Co ltd
Current assignee: Aixielin Heat Treatment System (Beijing) Co.Ltd
Priority date: 2001-02-12
Filing date: 2001-02-12
Publication date: 2001-11-28
Anticipated expiration: 2011-02-12

Abstract

The utility model relates to a multilayer turntable type austempering device, which is used for the technologies of machine work and heat treatment, and comprises a casing, a quenching liquid stirring and heating system, a charging tray bracket and a positioning rotary driving device, a charging tray inlet and outlet mechanism and a material inlet and outlet mechanism. The utility model has the advantages of compact structure, small occupation of land, energy saving, high production efficiency, stable product quality and reliable performance, can fit continuous mass production, can better meet the technological requirement of austempering, and can truly ensure the constancy of temperature that is required to form bainite, so that bainite structure is uniform, and the quality of products is improved.

Description

Muli-layer turret style bainite austempering device

The utility model relates to the Equipment for Heating Processing in a kind of mechanical workout, particularly relates to a kind of muli-layer turret style bainite austempering device.

Austempering is to reduce heat treatment deformation, improves the important process method of part impact resistance and fracture toughness property.At present, in order to realize bainitic hardening, people are heated to austenitizing temperature with workpiece, then by hand or crane workpiece put into an isothermobath keep for some time (approximately a few hours), make the metallographic structure of workpiece become bainite.This device is simpler and cruder, can only single and mini-batch production production, can't realize continuous production in enormous quantities, and production efficiency is extremely low, unstable product quality; Because high temperature austenite cools to the process release of heat of the required lesser temps of bainite form, easily cause the isothermobath quench fluid temperature to rise, make quench fluid temperature depart from bainite and form required standard temperature, be unfavorable for guaranteeing the austempering quality; Because work support with the workpiece hardening liquid of coming in and going out, has increased the burden of crystal salt on the cleaning workpiece support virtually, the suction heat release of support has also influenced the samming of hardening liquid; Current technology can't be used on the continuous furnace, can't realize producing in enormous quantities, and is big and long in order to realize that the continuous production isothermobath will be done, and increases floor space, increased the waste of the energy.

The purpose of this utility model is to overcome the above-mentioned shortcoming of prior art, a kind of compact construction is provided, takes up an area of less, save the energy, energy continuous production in enormous quantities, the production efficiency height, the muli-layer turret style bainite austempering device of stable and reliable product quality, this device can satisfy the bainitic hardening processing requirement preferably, can guarantee really that bainite forms temperature required homoeostasis, make bainite structure even, improve the quality of products.

Our quenching and two processes of isothermal by analyze to find that austenite links to each other before and after the conversion of bainite can be divided into: quenching is that the austenite workpiece cools to bainite and forms required temperature in the short period (several seconds was by several minutes), and to be workpiece form temperature required maintenance (a few hours) for a long time at bainite to isothermal.The backwardness of existing isothermal equipment is to cause low, the ropy determinative of bainitic hardening productivity.When so our quenching technology is in front finished with legacy equipment, separately for isothermal process has designed a kind of specific equipment, in the hope of achieving the desired result.

For achieving the above object, the utility model muli-layer turret style bainite austempering device comprises: the side that possesses thermal insulation layer is communicated with the garden tubbiness housing of a rectangular slot, the hardening liquid stirring system, hardening liquid heating yarn system, multilayer rotating disk formula charging tray support in the dip quench liquid, the charging tray support further connects the position rotating drive unit; Charging tray turnover mechanism, charging tray turnover mechanism comprises the mechanical manipulator that can carry charging tray between rectangle notch and charging tray support back and forth; Feeding-discharging mechanism, feeding-discharging mechanism comprises and workpiece can be pushed in the rectangle notch place blank panel and can be with the pusher arm that release from charging tray through the workpiece of isothermal processes on the rectangular slot place charging tray, mechanical manipulator possesses the charging tray joist, and multilayer rotating disk formula charging tray support has the breach that can stretch into, mention and return for the charging tray joist of mechanical manipulator in each charging tray position.

Described multilayer rotating disk formula charging tray support can rotate a station successively under its position rotating drive unit drives, stop at the position that the charging tray that makes on the support is aimed at mechanical manipulator.

After the utility model adopts technique scheme, the workpiece that is heated to high temperature austenite is quenched (identical with the temperature of isothermobath in the preposition quenching device earlier, this temperature is the required temperature of bainite isothermal transformation) the stop short period (several seconds was by several minutes), make workpiece surface temperature reach quenching temperature and workpiece heart portion equals or a little more than surface temperature, make workpiece surface begin to form bainite product nuclears (or still being in austenitic state), then workpiece is changed in the isothermal quenching device, the bainite nucleus begins growth in the isothermal quenching device, and form new nucleus, (a few hours approximately) austenitic transformation is a bainite after the sufficiently long time of insulation, this disaggregating treatment mode can guarantee the homoeostasis of bainite isothermal temperature, makes bainite structure even.Its technological process is that workpiece enters the preposition of short duration time of quenching device stop after process furnace comes out, be transported on the empty charging tray on the mechanical manipulator of isothermal quenching device by the workpiece transfer mechanism afterwards, mechanical manipulator is delivered to charging tray on the multilayer rotating disk formula charging tray support together with workpiece, whenever, adorn a charging tray, station of multilayer rotating disk formula charging tray support rotation, the rest may be inferred, all piling on the multilayer rotating disk formula charging tray support up to workpiece, treat that first workpiece of putting into formally finishes the isothermal soaking time of technique initialization, the charging tray that mechanical manipulator will fill this workpiece shifts out together with workpiece, send into next operation and cool off cleaning, and the workpiece that empty charging tray is then packed into and transferred from preposition quenching device, this charging tray carries out isothermal processes with the room that workpiece is sent into multilayer rotating disk formula charging tray support by mechanical manipulator again together, so goes round and begins again and finishes the continuous operation of workpiece in the isothermal quenching device.Whole technological process charging tray support is immersed in the hardening liquid all the time, charging tray also only exposes hardening liquid in the short period of time of loading and unloading material, workpiece also is to enter hardening liquid when reaching isothermal temperature, so the hardening liquid homoiothermy is good, calorific loss is few, and this structure can make full use of the isothermobath space.

In a word, the utility model muli-layer turret style bainite austempering device compact construction, take up an area of less, save the energy, can adapt to continuous production in enormous quantities, the production efficiency height, constant product quality, dependable performance can satisfy the bainite isothermal quenching technique requirement preferably, can guarantee really that bainite forms temperature required homoeostasis, make bainite structure even, improve the quality of products.

Fig. 1 is a plan structure synoptic diagram of the present utility model;

Fig. 2 is that A-A of the present utility model is to structural representation.

Be further described below in conjunction with accompanying drawing, the utility model muli-layer turret style bainite austempering device comprises: the side that possesses thermal insulation layer is communicated with the garden tubbiness housing 1 of a rectangular slot, hardening liquid stirs the yarn system, hardening liquid heating yarn system, multilayer rotating disk formula charging tray support 2 in the dip quench liquid, charging tray support 2 further connects the position rotating drive unit; Charging tray turnover mechanism, charging tray turnover mechanism comprise the mechanical manipulator 4 that can carry charging tray 3 at rectangle notch and 2 on charging tray support back and forth; Feeding-discharging mechanism, feeding-discharging mechanism comprises and workpiece 5 can be pushed in the empty charging tray 3 in rectangle notch place and can be with the pusher arm 7 that release from charging tray 3 through the workpiece 5 of isothermal processes on the rectangle notch place charging tray 3, mechanical manipulator 4 possesses charging tray joist 6, and multilayer rotating disk formula charging tray support 2 has the breach that can stretch into, mention and return for the charging tray joist 6 of mechanical manipulator 4 in each charging tray 3 position.Described multilayer rotating disk formula charging tray support 2 can rotate a station successively under its position rotating drive unit drives, stop at the position that the charging tray 3 that makes on the support is aimed at mechanical manipulator 4.

Claims

1, a kind of muli-layer turret style bainite austempering device, it is characterized in that comprising: the side that possesses thermal insulation layer is communicated with the garden tubbiness housing (1) of a rectangular slot, the hardening liquid stirring system, hardening liquid heating yarn system, multilayer rotating disk formula charging tray support (2) in the dip quench liquid, charging tray support (2) further connects the position rotating drive unit; Charging tray turnover mechanism, charging tray turnover mechanism comprises can carry the mechanical manipulator (4) of charging tray (3) back and forth between rectangle notch and charging tray support (2); Feeding-discharging mechanism, feeding-discharging mechanism comprises and workpiece (5) can be pushed in the empty charging tray in rectangle notch place (3) and rectangle notch place charging tray (3) can be gone up the pusher arm (7) that release through the workpiece (5) of isothermal processes from charging tray (3), mechanical manipulator (4) possesses charging tray joist (6), multilayer rotating disk formula charging tray support (2) has the charging tray joist (6) that can supply mechanical manipulator (4) to stretch into, mention and return in each charging tray (3) position breach.

2, muli-layer turret style bainite austempering device according to claim 1, it is characterized in that described multilayer rotating disk formula charging tray support (2) is under its position rotating drive unit drives, can rotate a station successively, stop at the position that the charging tray (3) that makes on the support is aimed at mechanical manipulator (4).