CN212983002U - Tidal type dipping, spraying and turbulent quenching equipment - Google Patents

Abstract

The utility model provides a tidal type soaks spouts torrent quenching equipment, including quenching groove shell, still include: the workpiece lifting system is provided with an automatic lifting guide rail and a quenching material fork moving up and down along the automatic lifting guide rail and is used for moving the workpiece on the quenching material fork to a quenching station; the quenching liquid tide fluctuation device is arranged at the rear part of the quenching tank shell, is provided with a tide liquid storage tank and a jacking mechanism which are connected through a sealing structure and is used for realizing the alternate conversion of slow air cooling and soaking-spraying turbulent quenching of the quenching liquid; the quenching liquid ring-driving turbulent quenching device is arranged at the front part of the quenching tank shell and is used for forming immersion-spraying turbulent quenching through forced convection circulation of the screw blades of the inner and outer rotors. The utility model improves the quenching intensity, increases the cooling uniformity, obtains more uniform and fine quenching tissues, and improves the obdurability and the machining performance of the workpiece. By switching air cooling and spray quenching, an ideal quenching curve is achieved to replace oil quenching and medium quenching.

Description

Tidal type dipping, spraying and turbulent quenching equipment

Technical Field

The utility model belongs to metalwork equipment for heat treatment field especially indicates a morning and evening tides formula soaks spouts turbulent quenching equipment.

Background

After the austenite of the workpiece is homogenized, quenching cooling equipment and a quenching cooling process are important for obtaining uniform and fine quenching structures. Conventional quench cooling equipment has two types of forced circulation schemes. A top-inserted stirrer with a large side-arranged volume is designed, wherein a stirring blade forms a downward liquid flow in a side-arranged guide cylinder, the downward liquid flow is reversed by an elbow and enters a tank bottom, and the downward liquid flow is reversed by an arc-shaped guide plate at the tank bottom and flows upwards to a high-temperature workpiece area for quenching. The scheme has the defects of more energy loss, low efficiency, low quenching intensity, formation of quenching soft spots, occupation of transverse space, low rotating speed, high vibration noise, more bearing faults and the like. The other design is a bottom-inserted fixed stirrer, the motor drives the blades to rotate through the input shaft at the bottom of the groove, a flow guide structure is not needed, but the defects that the longitudinal depth of a foundation pit is increased, the failure rate of a sealing structure is high, emptying and maintenance are difficult and time-consuming and the like exist.

SUMMERY OF THE UTILITY MODEL

To current side put top formula of inserting and insert the not enough of fixed agitator quenching equipment with the end, the utility model discloses a main aim at provides a morning and evening tides formula soaks spouts turbulent quenching equipment, improves the quenching intensity, increases the cooling homogeneity to obtain more even tiny quenching tissue, improve the obdurability and the machining performance of work piece. By switching air cooling and spray quenching, an ideal quenching curve is achieved to replace oil quenching and medium quenching.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a tide formula soaks spouts turbulent quenching equipment, includes quenching groove shell, still includes:

the workpiece lifting system is provided with an automatic lifting guide rail and a quenching material fork moving up and down along the automatic lifting guide rail and is used for moving the workpiece on the quenching material fork to a quenching station;

the quenching liquid tide fluctuation device is arranged at the rear part of the quenching tank shell, is provided with a tide liquid storage tank and a jacking mechanism which are connected through a sealing structure and is used for realizing the alternate conversion of slow air cooling and soaking-spraying turbulent quenching of the quenching liquid;

the quenching liquid ring-driving turbulent quenching device is arranged at the front part of the quenching tank shell and is used for forming immersion-spraying turbulent quenching through forced convection circulation of the screw blades of the inner and outer rotors.

By last, the utility model discloses an inside and outside double-deck stator and double-deck rotor realize soaking and spout the torrent function of quenching, use the quenching bath morning and evening tides fluctuation device of rearmounted quenching in the quenching tank shell to realize the slow air-cooling of quenching inslot and soak and spout the pulse alternate transform that torrent quenched. The quenching intensity of various workpieces is obviously enhanced during automatic quenching production, no quenching distortion exists, no pipeline transmission pressure loss exists, the cooling process is uniform and controllable, the quenching structure is more uniform and fine, the mechanical property of the product is more excellent, and the batch and automatic production requirements of the quenching and tempering line of the heat treatment furnace group can be met.

Optionally, the quenching liquid ring-drive turbulent quenching device comprises a flow guide cover shell, a flow guide cover reducing shell, an inner stator, an outer stator, an inner rotor, an outer rotor and a bottom pressure-equalizing distribution plate, wherein the lower part of the flow guide cover shell is connected with the flow guide cover reducing shell which is in a horn shape with a large upper part and a small lower part and is used for restraining the quenching liquid from flowing to a workpiece in a centralized manner;

the outer stator is fixedly embedded in the quenching tank shell, the outer periphery of the outer rotor is positioned on the inner periphery of the outer stator by virtue of the upper and lower groups of zirconia bearings, and the inner periphery of the outer rotor is positioned on the outer periphery of the inner stator by virtue of the upper and lower groups of zirconia bearings;

the inner stator upper flange is matched and fixed with the guide cover reducing shell lower flange, and the inner stator lower flange is tightly fixed with a bottom pressure equalizing and shunting plate flange positioned at the bottom of the quenching tank shell through a pin;

the outer periphery of the inner rotor is positioned on the inner periphery of the inner stator by means of an upper group of zirconia bearings and a lower group of zirconia bearings.

The two-layer annular rotor is driven by the inner and outer double-layer stator coils, wherein the propeller blades of the outer-layer rotor are clamped and welded in the double-layer cylindrical shell, the propeller blades of the inner-layer rotor are uniformly welded on the inner wall of the shell, and the rotor is shaftless. The electric energy is directly converted into the kinetic energy of quenching liquid flow, so that the dipping and spraying flow rate is achieved, the energy consumption efficiency is high, the equipment volume is reduced, the foundation pit civil engineering cost is reduced while the appearance is compact, and the full-automatic operation is realized.

Furthermore, the quenching liquid ring driving turbulent quenching device further comprises a guide cover shell supporting claw, wherein the periphery of the guide cover shell is of a steel plate and reinforcing rib structure, and the guide cover shell supporting claw on the upper part is connected with the inner wall of the quenching tank shell through a bolt.

By the above, when maintenance is needed, the guide cover shell, the guide cover reducing shell, the double-layer stator and the double-layer rotor are integrally lifted out through the guide cover shell supporting claw, and then the flange screw is disassembled to be decomposed into various parts, so that repair and update of the parts are facilitated.

Optionally, the jacking mechanism adopts four groups of hydraulic cylinders or air cylinders, the hydraulic cylinders or air cylinder bodies are fixed on the bottom plate of the quenching tank shell, and the moving rod heads of the hydraulic cylinders or air cylinders are fixed with the top water pushing plate by bolts.

From above, arrange the quenching liquid from the stock solution district to the quenching district through climbing mechanism rapidly, submerge high temperature work piece, realize soaking under the effect of quenching liquid ring-drive turbulent quenching device simultaneously and spout turbulent quenching. When the workpiece needs slow air cooling, the quenching liquid is rapidly pumped from the quenching area to the liquid storage area through the jacking mechanism.

Furthermore, the top water pushing plate is provided with four groups of cylinder sleeves for covering the moving rods of the hydraulic cylinders or the air cylinders.

The four groups of cylinders are arranged to cover the moving rods of the four groups of hydraulic cylinders or air cylinders, so that the horizontal operation of the quenching material fork above the quenching material fork can be avoided.

Drawings

FIG. 1 is a perspective view of the tidal type immersion-spray turbulent quenching apparatus of the present invention;

FIG. 2 is a front view of the present invention shown in FIG. 1, viewed from the heat treatment furnace toward the quenching bath;

FIG. 3 is a view from B-B of FIG. 2 according to the present invention;

FIG. 4 is a view A-A of FIG. 2 in accordance with the present invention;

FIG. 5 is a schematic view of the tidal immersion-spray turbulent quenching cycle of the present invention, wherein the dark-colored wave line (located at the upper portion) is the highest point of the liquid level during immersion-spray turbulent quenching, the light-colored wave line (located at the lower portion) is the lowest point of the liquid level during air cooling, and the dotted line (with an arrow) is the flow direction of the liquid flow during immersion-spray turbulent quenching;

fig. 6 is a perspective view of the top water pushing plate of the present invention;

fig. 7 is a front view of the top water pushing plate of the present invention;

fig. 8 is a side view of the top water push plate of the present invention;

fig. 9 is a bottom view of the top water pushing plate of the present invention;

fig. 10 is a first perspective view of the outer rotor of the present invention;

fig. 11 is a second perspective view of the outer rotor of the present invention;

figure 12 is a front view of figure 10 in accordance with the present invention;

fig. 13 is a top view of the present invention shown in fig. 10;

fig. 14 is a first perspective view of the inner rotor of the present invention;

fig. 15 is a second perspective view of the inner rotor of the present invention;

figure 16 is a front view of figure 14 in accordance with the present invention;

fig. 17 is a plan view of the present invention shown in fig. 14.

Reference numerals:

1-automatic lifting guide rail; 2-quenching a material fork; 3-a tidal reservoir; 4-a jacking mechanism; 5-a diversion cover shell supporting claw; 6-quenching tank shell; 7-the dome shell; 8-a workpiece; 9-a dome variable diameter shell; 10-an inner stator; 11-an outer stator; 12-inner rotor; 13-outer rotor; 14-bottom pressure equalizing and shunting plate; 15-top water pushing plate.

Detailed Description

The following describes the tidal type immersion-spray turbulent quenching apparatus in detail with reference to the attached fig. 1-17.

The tidal type dipping and spraying turbulent quenching equipment provided by the preferred embodiment of the utility model is shown in figures 1-17 and comprises a workpiece lifting system, a quenching liquid ring driving turbulent quenching device, a quenching liquid tide fluctuation device and a quenching tank shell 6. The workpiece lifting system consists of an automatic lifting guide rail 1 and a quenching material fork 2, and a produced workpiece 8 is supported on the quenching material fork 2. The quenching liquid ring-driving turbulent quenching device comprises a double-layer stator, a double-layer rotor, a guide cover shell 7, a guide cover shell supporting claw 5, a pressure-equalizing flow distribution plate 14 and the like which are positioned in a quenching tank shell 6, wherein an outer stator 11 of the quenching liquid ring-driving turbulent quenching device is embedded in the quenching tank shell 6, and the upper part of the guide cover shell 7 is fixed with the quenching tank shell 6 through bolts. The quenching liquid tide fluctuation device consists of a tide reservoir 3 and a jacking mechanism 4.

As shown in FIGS. 2 and 3, the sectional view B-B is taken at the center section of the jack 4 of the tidal fluctuation device of the quenching liquid. The quenching liquid tide fluctuation device is placed at the rear part of a high-temperature workpiece, and a quenching material fork 2 carries the workpiece 8 to be lowered to a quenching station in a quenching tank shell 6 along an automatic lifting guide rail 1. The device discharges quenching liquid from a liquid storage area to a quenching area rapidly through the jacking mechanism 4, submerges high-temperature workpieces, and simultaneously realizes the immersion-spraying turbulent quenching under the action of the quenching liquid ring-driving turbulent quenching device. When the workpiece needs slow air cooling, the device rapidly pumps the quenching liquid from the quenching area to the liquid storage area through the jacking mechanism 4. More specifically, as shown in fig. 5, the liquid flow circulation direction of the quenching liquid tide fluctuation device is indicated by a dot-dash line, at this time, the quenching liquid tide fluctuation device rises to the highest point, the liquid surface submerges the workpiece as shown by a dark wave line, and the flow velocity of the quenching liquid at the workpiece is greater than one meter per second. When the quenching liquid is in an unexpected strengthening phase transition temperature range, slow air cooling is needed, at the moment, the inner rotor and the outer rotor of the quenching liquid ring-driven turbulent quenching device stop rotating at a low speed, the quenching liquid tide fluctuation device falls to the position of the light-colored wavy line at the lowest point, and the workpiece is exposed out of the quenching liquid level. A sealing structure is designed between the jacking mechanism 4 behind the equipment and the tide reservoir 3, and the jacking mechanism 4 rapidly pushes the quenching liquid to a tide line to immerse the high-temperature workpiece through the top water pushing plate 15. The jacking mechanism 4 of the quenching liquid tide fluctuation device adopts four groups of hydraulic cylinders or air cylinders, the lower ends of the cylinder bodies of the hydraulic cylinders or the air cylinders are fixed on the bottom plate of the quenching tank shell 6, the moving rod heads of the hydraulic cylinders or the air cylinders are fixed with the top water pushing plate 15 through bolts, the moving rods of the hydraulic cylinders or the air cylinders move up and down in a reciprocating linear motion in the cylinder bodies, and the top water pushing plate 15 is lifted along with the moving rods under the pulling action. In order to avoid the horizontal operation of the quenching material fork 2 above, the top water pushing plate 15 is designed with four groups of cylinder sleeves to cover the moving rod of the hydraulic cylinder or the air cylinder. When flood spraying, the sealing structure prevents the quenching liquid from flowing into the lower space, and at the moment, the lower space sucks air from the top of the quenching tank shell 6 through the ventilation side cover of the side wall, wherein the sealing structure is an elastic sealing ring fixed on the periphery of the top water pushing plate 15, and the inner wall of the quenching tank shell 6 on the side of the quenching liquid ring driving turbulent quenching device is in close contact with the sealing ring so as to ensure the sealing between the upper cavity and the lower cavity when the quenching liquid ring slides up and down.

As shown in fig. 2 and 4, the sectional view a-a is located at the central section of the quenching tank shell, the quenching liquid ring-drive turbulent quenching device is placed in the quenching liquid at the lower part of the high-temperature workpiece, and consists of a guide cover shell supporting claw 5, a guide cover shell 7, a guide cover reducing shell 9, an inner stator 10, an outer stator 11, an inner rotor 12, an outer rotor 13 and a bottom pressure-equalizing and flow-dividing plate 14 which are located in the quenching tank shell 6. The two-layer annular double-layer rotor is driven by the inner and outer double-layer stator coils, as shown in fig. 10-17, the two-layer rotor is respectively welded with the propeller blades in different forms, wherein the propeller blades of the outer-layer rotor 13 are clamped and welded in the double-layer cylindrical shell, the propeller blades of the inner-layer rotor 12 are uniformly welded on the inner wall of the shell, and the rotor is shaftless.

As shown in fig. 3-4, outer stator 11 is fixed and inlayed in quenching groove shell 6, every group stator coil all uses the waterproof line of nylon sheath to twine on the stator core according to specific design, the stator core is assembled by the stainless steel side pipe and outer arc board, the welding of inner arc board that stack and is constituteed. The gaps of thirty groups of stator coils are inserted with the gold mica paper for isolation, the ring shape is closely arranged and the special mould is used for expanding and repairing, then the ring-drive pump stator shell is inserted from top to bottom to the bottom end for fixation, and the nylon sheath for keeping the waterproof wire of the coil is not scratched and damaged during the manufacturing process. And connecting the end parts of the thrown coils according to the connection, protecting the joints by using insulating sealing glue and a heat-shrinkable protective sleeve, enabling the connection taps to enter an external junction box through reserved through holes in the quenching tank shell 6, and connecting the connection taps with incoming line terminals of a special electric control device in a production line control cabinet in the junction box. And a spacer ring sheet is fixed on the upper part of the stator coil winding to prevent the stator coil winding from being scratched by the rotor. The outer rotor 13 outer periphery relies on upper and lower two sets of zirconia bearings pinpoint at outer stator 11 internal periphery, and outer rotor 13 inner periphery relies on upper and lower two sets of zirconia bearings to fix a position at inner stator 10 outer periphery equally. An upper flange of the inner stator 10 is matched and fixed with a lower flange of the guide cover reducing shell 9; the lower flange of the inner stator 10 is tightly fixed with a flange pin of a bottom pressure-equalizing flow-dividing plate 14 at the bottom of the quenching tank shell 6. The guide hood shell 7 is a stainless steel special-shaped reducing shell with the size 200 mm larger than the overall size of the workpiece and the quenching manipulator, and the guide hood reducing shell 9 connected with the lower part of the guide hood reducing shell plays a role in restraining the concentrated flow of quenching liquid to the workpiece. The periphery of the guide cover shell 7 is of a steel plate and reinforcing rib structure, and the guide cover shell supporting claws 5 on the upper portion are connected with the inner wall of the quenching tank shell 6 through bolts. The fixing structure of the diversion cover shell supporting claws 5 is generally designed to be more than four groups of even numbers, and the fixing structure can be seen to be symmetrically arranged along the circumference of the quenching station when the quenching tank is overlooked. The outer periphery of the inner rotor 12 is accurately positioned on the inner periphery of the inner stator 10 by two sets of zirconia bearings. Six hundred rubidium iron boron permanent magnets which are spliced into ten poles in groups are embedded in grooves processed on the circumferential surfaces of the inner rotor ring and the outer rotor ring, gaps of the permanent magnets are sealed by glue, and a magnetic gap of three millimeters is reserved between the permanent magnets and the inner stator ring and between the permanent magnets and the outer stator ring. And after the inner rotor and the outer rotor are manufactured and assembled, the bearing mounting surface is integrally ground, and a dynamic balance test is met by additionally arranging a welding counterweight plate. When the immersion-spraying turbulent quenching is carried out, the electric control system drives the current in the inner and outer stator coils to fluctuate periodically, the internal magnetic field rotates and commutates at a high speed along with the current, so that the permanent magnets embedded on the inner and outer rotors rotate in the circularly rotating magnetic field, the helical blades of the inner and outer rotors are driven to do work in a rotating manner, and the immersion-spraying turbulent quenching is realized. At the moment, the quenching liquid tide fluctuation device rises to the highest point.

The utility model discloses there is rings screw hole at the 6 four corners fixed knot of quenching groove shell design of cartridge type, hangs out whole quenching liquid ring and drives the torrent and quench the device when convenient maintenance. The waterproof cable of the inner stator and the outer stator of the quenching liquid ring-driven turbulent quenching device extends to a junction box on the outer side of the quenching tank wall through a through hole on the outer wall of the cylindrical quenching tank shell 6 and is connected with a driving control power supply circuit through a sealing plug.

Because the equipment arranged on the lower side of the quenching tank shell 6 has the possibility of being injured by a workpiece or other foreign matters, the equipment is provided with a filter screen through a liquid outlet on the stator shell and the bottom of the quenching fork. When the maximum overall dimension of the falling hard object is larger than the gap dimension of the propeller, the filter screen can block the hard object to avoid smashing the propeller blade. And small-size hard objects and ribbon-shaped soft objects cannot be wound to block the operation of the shaftless propeller blade, so that the stable operation reliability of preventing foreign body clamping damage and winding is realized.

When the device works, under the working condition that slow air cooling is needed, the spiral blades of the inner-layer rotor and the outer-layer rotor of the quenching liquid circulation are driven to rotate at a low speed or to be static, the quenching liquid tide fluctuation device falls to the bottom, and the quenching liquid level falls below a workpiece. Under the working condition of phase-change hardening, the spiral blades of the inner and outer rotors of the quenching liquid circulation are driven to rotate at high speed, the tide fluctuation device of the quenching liquid rises to the top, the workpiece is immersed in the quenching liquid level at the moment, and the spiral blades of the inner and outer rotors are forced to circulate in a convection manner to form immersion-spraying turbulent quenching. The metal surface passes through the film boiling stage quickly, the quenching intensity of a high-temperature area is improved remarkably, meanwhile, the cooling uniformity of the workpiece is improved through high-speed liquid flow, the obtained structure after quenching is more uniform, and the mechanical property of the workpiece is more excellent. The ideal quenching curve is gradually tightened by circularly and alternately switching air cooling and immersion-spray turbulent quenching, so that the product performance and distortion control superior to oil quenching and medium quenching are achieved.

When maintenance is needed, the guide cover shell 7, the guide cover reducing shell 9, the inner stator 10, the inner rotor 12 and the outer rotor 13 are integrally hung out through the guide cover shell supporting claws 5, then the flange screws are disassembled to be decomposed into various components, and then the components are respectively repaired and updated.

The utility model provides a tide formula soaks spouts torrent quenching equipment, multiplicable outer circulative cooling pipeline, external plate heat exchanger, closed cooling tower dispel the heat under the condition that the amount of production increases. Although the ring driving type pump takes the thirty-phase ten-pole brushless motor to drive the four-piece type inner and outer layer rotor propeller blades as an example, the quenching equipment of the utility model is not only applied to the heat treatment of the automatic tempering production line of the chamber furnace, but also applied to the quenching of batch parts with other shapes and specifications.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope of the claims.

Claims (5)

1. The utility model provides a tide formula soaks spouts turbulent quenching equipment, includes quenching groove shell (6), its characterized in that still includes:

the workpiece lifting system is provided with an automatic lifting guide rail (1) and a quenching material fork (2) moving up and down along the automatic lifting guide rail (1), and is used for moving a workpiece (8) on the quenching material fork (2) to a quenching station;

the quenching liquid tide fluctuation device is arranged at the rear part of the quenching tank shell (6), is provided with a tide liquid storage tank (3) and a jacking mechanism (4) which are connected through a sealing structure and is used for realizing the alternate conversion of slow air cooling and dip-spray turbulent quenching of the quenching liquid;

the quenching liquid ring-driving turbulent quenching device is arranged at the front part of the quenching tank shell (6) and is used for forming immersion-spraying turbulent quenching through forced convection circulation of the screw blades of the inner and outer layer rotors.

2. The tidal type dip-spray turbulent quenching equipment as claimed in claim 1, wherein the quenching liquid ring-drive turbulent quenching device comprises a flow guide cover shell (7), a flow guide cover reducing shell (9), an inner stator (10), an outer stator (11), an inner rotor (12), an outer rotor (13) and a bottom pressure equalizing and shunting plate (14), wherein the flow guide cover reducing shell (9) in a horn shape with a large upper part and a small lower part is connected to the lower part of the flow guide cover shell (7) and is used for restraining the concentrated flow of quenching liquid to a workpiece;

the outer stator (11) is fixedly embedded in the quenching tank shell (6), the outer periphery of the outer rotor (13) is positioned on the inner periphery of the outer stator (11) by virtue of an upper group of zirconia bearings and a lower group of zirconia bearings, and the inner periphery of the outer rotor (13) is positioned on the outer periphery of the inner stator (10) by virtue of an upper group of zirconia bearings and a lower group of zirconia bearings;

an upper flange of the inner stator (10) is matched and fixed with a lower flange of the guide cover reducing shell (9), and the lower flange of the inner stator (10) is tightly fixed with a flange pin of a bottom pressure-equalizing flow distribution plate (14) positioned at the bottom of the quenching tank shell (6);

the outer periphery of the inner layer rotor (12) is positioned on the inner periphery of the inner layer stator (10) by means of an upper group of zirconia bearings and a lower group of zirconia bearings.

3. The tidal type dip-spray turbulent quenching equipment as claimed in claim 2, wherein the quenching liquid ring-drive turbulent quenching device further comprises a guide hood shell supporting claw (5), the periphery of the guide hood shell (7) is of a steel plate and reinforcing rib structure, and the guide hood shell supporting claw (5) at the upper part is connected with the inner wall of the quenching tank shell (6) through a bolt.

4. The tidal type dip-spray turbulent quenching equipment as claimed in claim 1, wherein the jacking mechanism (4) adopts four groups of hydraulic cylinders or air cylinders, the hydraulic cylinders or air cylinders are fixed on the bottom plate of the quenching tank shell (6), and the moving rod heads of the hydraulic cylinders or air cylinders are fixed with the top water pushing plate (15) by using bolts.

5. The tidal flooding and turbulent quenching apparatus according to claim 4, wherein the top water pushing plate (15) is provided with four sets of barrel sleeves for housing the moving rods of the hydraulic or pneumatic cylinders.

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