CN104985095B - Ball rolling technique - Google Patents
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- CN104985095B CN104985095B CN201510427539.XA CN201510427539A CN104985095B CN 104985095 B CN104985095 B CN 104985095B CN 201510427539 A CN201510427539 A CN 201510427539A CN 104985095 B CN104985095 B CN 104985095B
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Abstract
One ball rolling technique of the present invention, includes: step 0, get the raw materials ready；Step 1, heating: raw material is heated to rolling temperature required；Step 2, rolling: the ball rolling molding after heating；Step 3, sieve ball: the steel ball sieve ball after molding removes defective products, and the non-defective unit screened carries out branch；Step 4, quantitatively hello ball: the steel ball after branch quantitatively enters spiral quenching mechanism and quenches, and equal only one of which steel ball in each helicla flute of spiral quenching mechanism；Step 5, primary quenching: the steel ball after hot-roll forming is quenched；Step 6, secondary quenching: the steel ball after primary quenching in step 5 is carried out secondary quenching；Step 7, tempering；Step 8, cooling；Step 9, dress ball.One ball rolling technique of the present invention, steel ball production efficiency is high and the quality of production is good.
Description
Technical field
The present invention relates to a kind of ball rolling technique, belong to steel ball and prepare production technical field.
Background technology
At present, the steel ball mode of production typically has forging, rolling, semi-solid forming and casting four big classes；Due to the usage of trade and the use condition, integrated environment and the background that are limited to some special occasions such as mining processing industry, the conventional steel ball mode of production occupies sizable ratio with forging with rolling ball；
Among these, hot rolling steel ball is as a kind of brand-new Bar Rolling Process, it is that the manufacturing Technology of ball milling steel ball breaks through, the most gradually substitute forged steel ball, compared with the modes such as forging, hot rolling steel ball technique has the following characteristics that 1. hot rolling mode production efficiency is high, yield big, rolls ball production mechanization, automaticity is high, and employment is few, and interference from human factor is little, steady quality；2. hardness is high, quenching degree is good, metallographic structure is fine and close, crystal grain is tiny, indeformable, steel ball will not deform from the beginning to the end, not lose circle, and anti-wear performance is good, and impact flexibility is up to 12-35J/cm2, and percentage of damage is less than 1%；3. energy consumption is low, pollution-free, labor intensity is low, production cost is relatively low；4. shaping, geometric tolerances are little, steady quality；5. wear rate is low, and service life is long, be existing casting iron ball, 2 ~ 5 times of forged steel ball, and price is suitable；6. steel ball integral hardness is high, and its case hardness can reach 55-65HRC, and volume hardness reaches 50-62HRC, and inside and outside hardness equalizes, and difference of hardness < 5HRC, and hardness gradient is evenly distributed；7. impact flexibility is up to 12 ~ 35J/cm3；8. percentage of damage is low: anti-stripping is broken and resistant to breakage performance is typically cast forged steel ball more than 10 times, ball falling impact number of times more than 20,000 times, and actual percentage of damage is less than 1%, close to without broken；Based on above-mentioned advantage, hot rolling steel ball product is used widely, by the consistent favorable comment of domestic and international client in industries such as all kinds of black and nonferrous metal mine ore dressing plant, thermal power plant, cement plant, refractory factories；
Conventional hot-rolled steel ball producing process typically uses forging (rolling) steel ball iron and steel industry industry standard (YB/T 091-2005) professional production all size hot rolling ball milling steel ball, steel ball size scope is Φ 25-Φ 125mm, the blank that rolling ball milling steel ball uses is the hot rolled circular steel rod of various chemical composition, and its diameter is equal with steel ball nominal diameter；Conventional hot rolling steel ball main production flow process is as follows:
Step one, round steel bar, after inspection, cut into steel ball blank by cut lengths；
Step 2, steel ball blank are heated to suitable temperature before the rolling in continuous-type furnace；
After step 3, the steel billet of red heat state are admitted to hot-rolling mill, it is rotationally advancing between two rolls with special spiral type pass, and is rolled into steel ball continuously；
Step 4, roll into after red heat state steel ball immediately enter Equipment for Heating Processing and carry out-the tempering heat treatment that quenches, make steel ball obtain the highest and uniform hardness；
Step 5, through check qualified product be sent to finished room, mail to client after packing；
But, find through actual production, there is problem highlighted below during above-mentioned production hot rolling steel ball: step 3 front end lacks quantitative mechanism, thus cannot realize the rhythm of production of steady rate simultaneously；Quenching apparatus in step 4 is the most backward, causes its power consumption height, and quenching effect is poor, therefore needs improvement badly；Meanwhile, step 5 lacks corresponding mechanization pulping apparatus structure after completing, and uses manual type not only inefficient, and the recruitment cost day by day increased is greatly increased the production cost of enterprise.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that a kind of ball rolling technique producing efficient high-quality steel ball；This ball rolling production efficiency is high, and product quality is excellent, and the production technology of automatization greatly reduces the production cost of steel ball, is conducive to increasing the market competitiveness of enterprise.
The object of the present invention is achieved like this:
A kind of ball rolling technique, described technique includes following step:
Step 0, get the raw materials ready；Raw material steel grade is determined according to required end properties；Raw-material cut lengths is determined according to heating furnace specification；Determine that rolling is temperature required according to end properties.
Step 1, heating: raw material is heated to rolling temperature required；
Step 2, rolling: the ball rolling molding after heating；
Step 3, sieve ball: the steel ball sieve ball after molding removes defective products, and the non-defective unit screened carries out branch；Meanwhile, the non-defective unit filtered out in this step 3 is through carrying out conveying-type slow cooling；
Step 4, quantitatively hello ball: the steel ball after branch quantitatively enters spiral quenching mechanism and quenches, and equal only one of which steel ball in each helicla flute of spiral quenching mechanism；
Step 5, primary quenching: the steel ball after hot-roll forming is quenched；
Step 6, secondary quenching: the steel ball after primary quenching in step 5 is carried out secondary quenching；
Step 7, tempering；
Step 8, cooling；
Step 9, dress ball.
One ball rolling technique of the present invention, also carries out step 7a, Qiang Leng: first sent into by the steel ball after secondary quenching and cool down completely, carry out step 7 again after waiting steel ball cooling before carrying out step 7.
One ball rolling technique of the present invention, in step 7a, complete chiller is used to carry out the coldest, described complete chiller includes cooling pit, it is mounted on built-in fitting in the surrounding of described cooling pit and the hole wall of bottom, the built-in fitting being positioned on the hole wall of surrounding is welded with side plate through built on stilts section bar, the built-in fitting being positioned on the hole wall of bottom is welded with base plate through built on stilts section bar, four blocks of side plates and base plate constitute inner housing, and built on stilts formation ventilation voids between the hole wall of inner housing and surrounding and bottom, described base plate is provided with air vent；During use, utilizing blower fan to be poured into by wind in the ventilation voids between the hole wall of inner housing and surrounding and bottom, due to the non-perforate of side plate, cooling wind can only carry out air blast cooling via the steel ball that the air vent on base plate upwards blows out entering inner housing.
One ball rolling technique of the present invention, step 4 use Pneumatic quantitative mechanism quantitatively feed ball, described Pneumatic quantitative mechanism includes sensor, this sensor is installed on the helical axis of spiral quenching mechanism, the baffle plate connected is installed on cylinder or oil cylinder, and the piston rod of cylinder or oil cylinder on the gathering sill that branch mechanism is connected with spiral quenching mechanism be inserted in this gathering sill；The treated unit of the sensor controls an electromagnetic valve, this electromagnetic valve is serially connected on cylinder or the gas circuit of oil cylinder or oil circuit, so that when the helical axis of spiral quenching mechanism often turns over a circle, sensor-triggered is once so that spiral quenching mechanism once sent into by steel ball by the piston rod action of cylinder or oil cylinder.
One ball rolling technique of the present invention, step 5 use spiral quenching mechanism carry out primary quenching, described spiral quenching mechanism includes housing and media slot, described housing internal frame is provided with helical axis, described media slot is installed on housing bottom, so that housing and media slot constitute a dielectric cavity, it is provided with on described housing and is provided with two row's media ports along its length, two row's media ports lay respectively at the both sides of housing, and media port is connected with dielectric cavity, bottom media port and inner walls difference in height is steel ball size 1/2nd, and media port is horn-like, and this trumpet-shaped little head end is towards housing, big head section is towards dielectric cavity.
One ball rolling technique of the present invention, two row's media port non-equidistance arrangements, it is positioned at the media port dense arrangement of spiral quenching mechanism front end steel ball charging aperture, the most sparse arrangement of media port toward steel ball discharging opening direction, spiral quenching mechanism rear end, during so that high temperature steel ball has just enter into spiral quenching mechanism, there are enough cooling mediums that it is carried out Cooling Quenching, and when steel ball gradually cools down and during discharging backward, the cooling medium imported gradually decreases, the inlet of cooling medium is adjusted, so that quenching effect is more preferably according to steel ball variations in temperature.
One ball rolling technique of the present invention, step 6 use secondary translation quenching mechanism carry out secondary quenching, described secondary translation quenching mechanism includes frame, one end of described frame sets up driving shaft, the other end sets up driven shaft, described both ends of main drive shaft is respectively installed with drive sprocket, described driven shaft two ends are respectively installed with driven sprocket, in described frame, frame length direction is provided with conveyor mat, article two, the chain arranged along frame length direction is positioned at above conveyor mat, and drive sprocket, driven sprocket are all meshed with chain；Article two, connect between chain and have the band iron for carrying steel ball；The pitch of the chain combined by carrier bar is more than the diameter of steel ball；Meanwhile, the height of the carrier bar constituting chain is more than the radius of steel ball, thus prevents steel ball in transportation from dropping.
One ball rolling technique of the present invention, uses automatic ball feeding machine structure to carry out filling ball in step 9, described automatic ball feeding machine structure includes material-gathering device, ratary disk type direct through-connection equipment and translation conveyors of weighing,
Described material-gathering device includes transporting chain plate and is positioned at the loading head above transporting chain plate, a discharge door it is hinged with on the discharging opening of described loading head, vertically being provided with a discharging oil cylinder on the outer wall of described loading head, the piston rod of described discharging oil cylinder is articulated with on discharge door；Steel ball enters gathering sill after transporting chain plate, slips into ratary disk type direct through-connection equipment；
Described ratary disk type direct through-connection equipment includes support, and described support is provided with reductor, and the output shaft of described reductor is connected by the rotating disk main shaft that shaft coupling and are vertically arranged；The top of described rotating disk main shaft connects a horizontally disposed rotary disk, described rotary disk includes the central annular plate being set on rotating disk main shaft, peripheral annular plate is coaxially disposed with central annular plate, and connection has fan-shaped demarcation strip between central annular plate and peripheral annular plate, thus the anchor ring that central annular plate and peripheral annular plate are crowded around is divided into multiple sector region, and each sector region is provided with demarcation strip, demarcation strip is connected between two pieces of adjacent fan-shaped demarcation strips；Above-mentioned sector region is divided into capacious chamber in two separate chamber, and two separate chamber by demarcation strip can accommodate steel ball, the chamber roof capping that another volume is little；One fixed underpan is installed on described support, and fixed underpan is located at turn around below dish, described fixed underpan is provided with multiple ball-dropping hole, below each ball-dropping hole, is provided with ball guilding trough；
Described translation conveyors of weighing includes conveyer bridge, flyer chain conveyer belt is installed on described conveyer bridge, the bottom of described conveyer bridge is provided with weight sensor, and weight sensor is provided with four, four weight sensors lay respectively on four angles of conveyer bridge, so that it is the most accurate to weigh.
One ball rolling technique of the present invention, steel ball is directed in the chamber that rotary disk is bigger by the transporting chain plate of material-gathering device, rotating disk main shaft drives rotary disk to rotate, when the steel ball in rotary disk turns to above the ball-dropping hole of fixed underpan, steel ball falls to ball guilding trough via ball-dropping hole, thus landing is to translation conveyors of weighing.
One ball rolling technique of the present invention, in steel ball jumbo bag in ball guilding trough landing to chain conveyor；The weight information detected is transmitted to processing unit by weight sensor, it is provided with raster count device on ball guilding trough simultaneously, this raster count device is similarly connected to processing unit, and this processing unit is by Control transporting chain plate, discharging oil cylinder, reductor and the start and stop of flyer chain conveyer belt；When in weight sensor detects the jumbo bag on chain conveyor steel ball weigh less than value is set time, start discharging oil cylinder and continue steel ball falling, and drive reductor to drive rotary disk to continue to rotate ball, detect by the raster count device installed on ball guilding trough and measure so that measure the most accurate；When in weight sensor detects the jumbo bag on chain conveyor, the weight of steel ball reaches to arrange value, processing unit stops transporting chain plate, discharging oil cylinder and the action of reductor, now starts flyer chain conveyer belt and transmits the jumbo bag installing steel ball to translation conveyors top discharge.
Compared with prior art, the invention has the beneficial effects as follows:
Pneumatic quantitative mechanism of the present invention ensures that each helicla flute of spiral quenching mechanism helical axis is interior and only has a steel ball, it is ensured that the quality of quenching；
The setting by media slot of the spiral quenching mechanism of the present invention, so that only need to be connected with medium house steward, so that whole mechanism structure is the simplest with a pipeline；And the media port of horn-like design makes pressure medium bigger, it is possible to the steel ball in effective impact housing, improve quenching effect；Media port additionally by unequal-interval designs so that the steel ball of different phase can the hardening media of on-demand acquisition different flow, further increase quenching effect；
Hardening media can be imported in frame by secondary parallel-moving type quenching mechanism of the present invention easily, utilizes band iron carrying steel ball to move in hardening media, and simultaneously in band iron pushing course, steel ball rolls self, improves the quality of quenching；Carrier bar is higher than steel ball radius simultaneously, thus effectively prevents steel ball from dropping in quenching process；And by secondary quenching, steel ball performance improves 20 ~ 30%.
Automatic ball feeding machine structure of the present invention carries out discharging by funnelform loading head, and controls its discharging by discharging oil cylinder；Meanwhile, carry out efficient bulb separation by ratary disk type direct through-connection equipment, and carry out accurate measurement by translation conveyors of weighing；Whole process Automatic Control, not only efficiency is high and metering is accurate.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of ball rolling technique of the present invention.
Fig. 2 is the schematic flow sheet (removing complete cooling body) of ball rolling technique of the present invention.
Fig. 3 is the structural representation of the Pneumatic quantitative mechanism of ball rolling technique of the present invention.
Fig. 4 is the structural representation of the spiral quenching mechanism of ball rolling technique of the present invention.
Fig. 5 is the sectional view of the spiral quenching mechanism of ball rolling technique of the present invention.
Fig. 6 is the structural representation of the secondary translation quenching mechanism of ball rolling technique of the present invention.
Fig. 7 is the top view of the secondary translation quenching mechanism of ball rolling technique of the present invention.
Fig. 8 is the left side schematic view of Fig. 6 of the secondary translation quenching mechanism of ball rolling technique of the present invention.
Fig. 9 is the right side schematic view of Fig. 6 of the secondary translation quenching mechanism of ball rolling technique of the present invention.
Figure 10 is the top view of the complete chiller of ball rolling technique of the present invention.
Figure 11 is the side sectional view of the complete chiller of ball rolling technique of the present invention.
Figure 12 is the structural representation of the automatic ball feeding machine structure of ball rolling technique of the present invention.
Figure 13 is the top view of the automatic ball feeding machine structure of ball rolling technique of the present invention.
Figure 14 is the structural representation of the material-gathering device of ball rolling technique of the present invention.
Figure 15 is the side view of the material-gathering device of ball rolling technique of the present invention.
Figure 16 is the structural representation of the ratary disk type direct through-connection equipment of ball rolling technique of the present invention.
Figure 17 is the bulb separation view of the ratary disk type direct through-connection equipment of ball rolling technique of the present invention.
Figure 18 is the structural representation of the rotary disk of the ratary disk type direct through-connection equipment of ball rolling technique of the present invention.
Figure 19 is the structural representation of the translation conveyors of weighing of ball rolling technique of the present invention.
Figure 20 is the side view of the translation conveyors of weighing of ball rolling technique of the present invention.
Wherein:
Heating arrangements 1, rolling mechanism 2, hoisting mechanism 3, Shai Qiu mechanism 4, parallel-moving type conveying mechanism 5, branch mechanism 6, spiral quenching mechanism 7, tempering heating arrangements 8, distributor box 9, reductor 10, mair motor 11, secondary translation quenching mechanism 12, hoisting mechanism 13, cooling body 14, Pneumatic quantitative mechanism 15, complete chiller 16, automatic ball feeding machine structure 17；
Housing 7.1, media slot 7.2, media port 7.3, helical axis 7.4；
Frame 12.1, medium flange 12.2, driving shaft 12.3, drive sprocket 12.4, driven shaft 12.5, driven sprocket 12.6, chain 12.7, flat key 12.8, band iron 12.9, conveyor mat 12.10；
Sensor 15.1, cylinder or oil cylinder 15.2；
Cooling pit 16.1, hole wall 16.2, built-in fitting 16.3, built on stilts section bar 16.4, side plate 16.5, base plate 16.6, air vent 16.7；
Material-gathering device 17.1, ratary disk type direct through-connection equipment 17.2, translation conveyors 17.3 of weighing, translation conveyors 17.4；
Loading head 101, transporting chain plate 102, discharge door 103, discharging oil cylinder 104；
Support 201, reductor 202, rotating disk main shaft 203, rotary disk 204, fixed underpan 205, ball-dropping hole 206, ball guilding trough 207；
Central annular plate 204.1, peripheral annular plate 204.2, fan-shaped demarcation strip 204.3, demarcation strip 204.4；
Conveyer bridge 301, flyer chain conveyer belt 302, weight sensor 303.
Detailed description of the invention
See Fig. 1 ~ 20, a kind of ball rolling technique that the present invention relates to, described technique includes following step:
Step 0, get the raw materials ready: determine raw material steel grade according to required end properties；Raw-material cut lengths is determined according to heating furnace specification；Determine that rolling is temperature required according to end properties.
Step 1, heating: raw material enters heating arrangements 1 and is heated to rolling temperature required；
Step 2, rolling: the steel ball after heating enters rolling mechanism 2 roll forming；
Step 3, sieve ball: after the steel ball boosted mechanism 3 after molding promotes, utilizing Shai Qiu mechanism 4 to delete defective products, the non-defective unit screened enters Pneumatic quantitative mechanism 15 after gathering sill, parallel-moving type conveying mechanism 5 and the most a set of branch mechanism 6；
Preferably, the length of parallel-moving type conveying mechanism 5 is longer, thus plays the effect of slow cooling, as S-shaped or snakelike coiled fashion can be used to increase its delivered length in limited floor space；
Step 4, quantitatively hello ball: the steel ball feeding auger quenching mechanism 7 after molding is quenched by Pneumatic quantitative mechanism 15, and equal only one of which steel ball in each helicla flute of spiral quenching mechanism 7；
Preferably, described Pneumatic quantitative mechanism 15 includes sensor 15.1, this sensor 15.1 is installed on the helical axis of spiral quenching mechanism 7, the baffle plate connected is installed on the gathering sill that branch mechanism 6 is connected with spiral quenching mechanism 7 on cylinder or oil cylinder 15.2, and the piston rod of cylinder or oil cylinder 15.2 be inserted in this gathering sill；The treated unit of the sensor 15.1 controls an electromagnetic valve, this electromagnetic valve is serially connected on cylinder or the gas circuit of oil cylinder 15.2 or oil circuit, so that when the helical axis of spiral quenching mechanism 7 often turns over a circle, sensor 15.1 triggers once so that spiral quenching mechanism 7 once sent into by steel ball by the piston rod action of cylinder or oil cylinder 15.2；
Step 5, primary quenching (cooling): the steel ball after hot-roll forming is quenched；
nullThis step uses spiral quenching mechanism 7，Described spiral quenching mechanism 7 includes housing 7.1 and media slot 7.2，Described housing 7.1 internal frame is provided with helical axis 7.4，Described media slot 7.2 is installed on bottom housing 7.1，So that housing 7.1 and media slot 7.2 constitute a dielectric cavity (preferred housing 7.1 and media slot 7.2 are integral type structure)，It is provided with on described housing 7.1 and is provided with two row's media ports 7.3 along its length，Two row's media ports 7.3 lay respectively at the both sides of housing 7.1，And media port 7.3 is connected with dielectric cavity，Bottom media port 7.3 and housing 7.1 inwall difference in height is steel ball size 1/2nd，And media port 7.3 is that horn-like (and this trumpet-shaped little head end is towards housing 7.1，Big head section is towards dielectric cavity，Thus add the outlet pressure of medium，So that it can effectively impact the steel ball to be quenched in housing 7.1；And the quenching press medium of intensified pressure can break through the oxide-film of steel ball surface, thus improve the effect of quenching)；During work, media slot 7.2 is connected with medium house steward by Flange joint, and medium enters and quenches the steel ball of its inside through being entered housing 7.1 by media port 7.3 after dielectric cavity；Preferably, two row's media port 7.3 non-equidistance arrangements, it is positioned at media port 7.3 dense arrangement of spiral quenching mechanism 7 front end steel ball charging aperture, the most sparse arrangement of media port 7.3 toward steel ball discharging opening direction, spiral quenching mechanism 7 rear end, during so that high temperature steel ball has just enter into spiral quenching mechanism 7, there are enough cooling mediums that it is carried out Cooling Quenching, and when steel ball gradually cools down and during discharging backward, the cooling medium imported gradually decreases, the inlet of cooling medium is adjusted, so that quenching effect is more preferably according to steel ball variations in temperature；
Step 6, secondary quenching (cooling): the steel ball after primary quenching in step 5 is carried out secondary quenching；
nullIn this step，Use secondary translation quenching mechanism 12，Described secondary translation quenching mechanism 12 includes frame 12.1，One end of described frame 12.1 sets up driving shaft 12.3，The other end sets up driven shaft 12.5，Described driving shaft 12.3 two ends are respectively installed with drive sprocket 12.4，Described driven shaft 12.5 two ends are respectively installed with driven sprocket 12.6，In described frame 12.1, frame 12.1 length direction is provided with conveyor mat 12.10，Article two, the chain 12.7 arranged along frame 12.1 length direction is positioned at above conveyor mat 12.10，And drive sprocket 12.4、Driven sprocket 12.6 is all meshed (concretely with chain 12.7，Two drive sprockets 12.4 are meshed transmission respectively at two chains 12.7，Two driven sprockets 12.6 engage respectively at two chain 12.7 phase transmissions)；Described chain 12.7 is combined by carrier bar；Being provided with flat key 12.8 below described chain 12.7, for guiding chain 12.7, and prevent the carrier bar constituting chain 12.7 from scratching frame 12.1, connecting between two chains 12.7 has the band iron 12.9 for carrying steel ball；Described frame 12.1 one end is provided with medium entrance, and the other end is provided with media outlet, and connects medium entrance and media outlet by a closed loop cooling tower, thus constitutes a closed circulation, it is to avoid the loss of hardening media；Described frame 12.1 side is provided with medium flange 12.2, is used for connecting medium fairlead；And when using, driven shaft 12.5 end is steel ball import, and driving shaft 12.3 end is steel ball discharge end, now ensure that motor brings enough torque drive chains 12.7 when driving driving shaft 12.3；
Preferably, described frame 12.1 also setting up and has multiple tugboat axle, described tugboat axle two ends to be provided with tugboat, the wheel face of described tugboat is pressed together on chain 12.7, is used for improving pressure force, it is ensured that Steel ball conveyor steadily reliable；
Preferably, carrier bar the pitch of the chain 12.7 combined is more than the diameter of steel ball；Meanwhile, the height of the carrier bar constituting chain 12.7 is more than the radius of steel ball, thus prevents steel ball in transportation from dropping；
By secondary quenching, steel ball performance improves 20 ~ 30%；
Step 7, tempering；The boosted mechanism of steel ball 13 after secondary quenching is delivered to be tempered heating arrangements 8 and carries out temper；
Step 7a, Qiang Leng: before carrying out step 7, first send the steel ball after secondary quenching into complete chiller 16 and cool down completely, is promoted to be tempered heating arrangements 8 again and carries out temper after waiting steel ball cooling；
In this step, described complete chiller 16 includes cooling pit 16.1, it is mounted on built-in fitting 16.3 in the surrounding of described cooling pit 16.1 and bottom sump wall 16.2, the built-in fitting 16.3 being positioned on the wall 16.2 of surrounding hole is welded with side plate 16.5 through built on stilts section bar 16.4, the built-in fitting 16.3 being positioned on bottom sump wall 16.2 is welded with base plate 16.6 through built on stilts section bar 16.4, four blocks of side plates 16.5 and base plate 16.6 constitute inner housing, and built on stilts formation ventilation voids between inner housing and hole wall 16.2, described base plate 16.6 is provided with air vent 16.7；During use, utilizing blower fan to be poured into by wind in the ventilation voids of inner housing and hole wall 16.2, due to the non-perforate of side plate 16.5, cooling wind can only carry out air blast cooling via the steel ball that the air vent 16.7 on base plate 16.6 upwards blow out entering inner housing；
Step 8, cooling: tempering terminates rear steel ball and carries out cooling body 14 and cool down；
Step 9, dress ball: the steel ball after cooling enters automatic ball feeding machine structure 17 to carry out filling ball；
In this step, described automatic ball feeding machine structure 17 includes material-gathering device 17.1, ratary disk type direct through-connection equipment 17.2 and translation conveyors 17.3 of weighing,
Described material-gathering device 17.1 includes transporting chain plate 102 and is positioned at the loading head 101 above transporting chain plate 102, a discharge door 103 it is hinged with on the discharging opening of described loading head 101, vertically being provided with a discharging oil cylinder 104 on the outer wall of described loading head 101, the piston rod of described discharging oil cylinder 104 is articulated with on discharge door 103；Steel ball enters gathering sill after transporting chain plate 102, slips into ratary disk type direct through-connection equipment 17.2；
Described ratary disk type direct through-connection equipment 17.2 includes support 201, and described support 201 is provided with reductor 202, and the output shaft of described reductor 202 is connected by shaft coupling and a vertically arranged rotating disk main shaft 203；The top of described rotating disk main shaft 203 connects a horizontally disposed rotary disk 204, described rotary disk 204 includes the central annular plate 204.1 being set on rotating disk main shaft 203, peripheral annular plate 204.2 is coaxially disposed with central annular plate 204.1, and connection has fan-shaped demarcation strip 204.3 between central annular plate 204.1 and peripheral annular plate 204.2, thus the anchor ring that central annular plate 204.1 and peripheral annular plate 204.2 are crowded around is divided into multiple sector region, and each sector region is provided with demarcation strip 204.4, demarcation strip 204.4 is connected between two pieces of adjacent fan-shaped demarcation strips 204.3；Above-mentioned sector region is divided into capacious chamber in two separate chamber, and two separate chamber by demarcation strip 204.4 can accommodate steel ball, the chamber roof capping that another volume is little；One fixed underpan 205 is installed on described support 201, and fixed underpan 205 is located at turn around below dish 204, presses close to but do not contact between described rotary disk 204 and fixed underpan 205；And fixed underpan 205 is set on rotating disk main shaft 203, but fixed underpan 205 is connected with rotating disk main shaft 203 not transmission, described fixed underpan 205 is provided with multiple ball-dropping hole 206, is provided with ball guilding trough 207 below each ball-dropping hole 206；Preferably, each ball-dropping hole 206 is respectively positioned on different concentric rings, further, and described ball-dropping hole 206 reality and the corresponding coupling of capacious chamber on rotary disk 204 so that the steel ball in the big chamber of co-content is not derived via different ball-dropping holes 206；
During work, steel ball is directed in the chamber that rotary disk 204 is bigger by the transporting chain plate 102 of material-gathering device 17.1, rotating disk main shaft 203 drives rotary disk 204 to rotate, when above the steel ball in rotary disk 204 turns to the ball-dropping hole 206 of fixed underpan 205, steel ball falls to ball guilding trough 207 via ball-dropping hole 206, thus landing is to translation conveyors 17.3 of weighing；
Described translation conveyors 17.3 of weighing includes conveyer bridge 301, on described conveyer bridge 301, flyer chain conveyer belt 302 is installed, the bottom of described conveyer bridge 301 is provided with weight sensor 303, and weight sensor 303 is provided with four, four weight sensors 303 lay respectively on four angles of conveyer bridge 301, so that it is the most accurate to weigh；
The operation principle of whole automatic ball feeding machine structure 17 is: during work, in steel ball jumbo bag in ball guilding trough 207 landing to chain conveyor 302；The weight information detected is transmitted to processing unit by weight sensor 303, it is provided with raster count device on ball guilding trough 207 simultaneously, this raster count device is similarly connected to processing unit, and this processing unit is by Control transporting chain plate 102, discharging oil cylinder 104, reductor 202 and the start and stop of flyer chain conveyer belt 302；When in the jumbo bag that weight sensor 303 detects on chain conveyor 302 steel ball weigh less than value is set time, start discharging oil cylinder 104 and continue steel ball falling, and drive reductor 202 to drive rotary disk 204 to continue to rotate ball, detect by the raster count device installed on ball guilding trough 207 and measure so that measure the most accurate；When in the jumbo bag that weight sensor 303 detects on chain conveyor 302, the weight of steel ball reaches to arrange value, processing unit stops transporting chain plate 102, discharging oil cylinder 104 and the action of reductor 202, now starts flyer chain conveyer belt 302 and transmits the jumbo bag installing steel ball to translation conveyors 17.4 top discharge；
Additionally: it should be noted that above-mentioned detailed description of the invention is only a prioritization scheme of this patent, any change that those skilled in the art is done according to above-mentioned design or improvement, all within the protection domain of this patent.
Claims (9)
1. a ball rolling technique, it is characterised in that: described technique includes following step:
Step 0, get the raw materials ready；
Step 1, heating: raw material is heated to rolling temperature required；
Step 2, rolling: the ball rolling molding after heating；
Step 3, sieve ball: the steel ball sieve ball after molding removes defective products, and the non-defective unit screened carries out branch；Meanwhile, the non-defective unit filtered out in this step 3 is through carrying out conveying-type slow cooling；
Step 4, quantitatively goal: the steel ball after branch quantitatively enters spiral quenching mechanism and quenches, and equal only one of which steel ball in each helicla flute of spiral quenching mechanism；
Step 5, primary quenching: the steel ball after hot-roll forming is quenched；
Step 6, secondary quenching: the steel ball after primary quenching in step 5 is carried out secondary quenching；
Step 7, tempering；
Step 8, cooling；
Step 9, dress ball；
Using automatic ball feeding machine structure (17) to carry out filling ball in step 9, described automatic ball feeding machine structure (17) includes material-gathering device (17.1), ratary disk type direct through-connection equipment (17.2) and translation conveyors of weighing (17.3),
Described material-gathering device (17.1) includes transporting chain plate (102) and is positioned at the loading head (101) of transporting chain plate (102) top, a discharge door (103) it is hinged with on the discharging opening of described loading head (101), vertically being provided with a discharging oil cylinder (104) on the outer wall of described loading head (101), the piston rod of described discharging oil cylinder (104) is articulated with on discharge door (103)；Steel ball enters gathering sill after transporting chain plate (102), slips into ratary disk type direct through-connection equipment (17.2)；
Described ratary disk type direct through-connection equipment (17.2) includes support (201), and described support (201) is provided with reductor (202), and the output shaft of described reductor (202) is connected by shaft coupling and a vertically arranged rotating disk main shaft (203)；The top of described rotating disk main shaft (203) connects a horizontally disposed rotary disk (204), described rotary disk (204) includes the central annular plate (204.1) being set on rotating disk main shaft (203), peripheral annular plate (204.2) is coaxially disposed with central annular plate (204.1), and connection has fan-shaped demarcation strip (204.3) between central annular plate (204.1) and peripheral annular plate (204.2), thus the anchor ring that central annular plate (204.1) and peripheral annular plate (204.2) are crowded around is divided into multiple sector region, and each sector region is provided with demarcation strip (204.4), demarcation strip (204.4) is connected between two pieces of adjacent fan-shaped demarcation strips (204.3)；Above-mentioned sector region is divided into capacious chamber in two separate chamber, and two separate chamber by demarcation strip (204.4) can accommodate steel ball, the chamber roof capping that another volume is little；One fixed underpan (205) is installed on described support (201), and fixed underpan (205) is located at turn around dish (204) lower section, being provided with multiple ball-dropping hole (206) on described fixed underpan (205), each ball-dropping hole (206) lower section is provided with ball guilding trough (207)；
Described translation conveyors of weighing (17.3) includes conveyer bridge (301), flyer chain conveyer belt (302) is installed on described conveyer bridge (301), the bottom of described conveyer bridge (301) is provided with weight sensor (303), and weight sensor (303) is provided with four, four weight sensors (303) lay respectively on four angles of conveyer bridge (301), so that it is the most accurate to weigh.
2. a kind of ball rolling technique, it is characterised in that: step 3 use parallel-moving type conveying mechanism (5) carry out conveying-type slow cooling.
3. a kind of ball rolling technique, it is characterised in that: before carrying out step 8, carry out step 8a, Qiang Leng: first sent into by the steel ball after secondary quenching and cool down completely, after waiting steel ball cooling, carry out step 8 again.
null4. a kind of ball rolling technique，It is characterized in that: in step 7a，Complete chiller (16) is used to carry out the coldest，Described complete chiller (16) includes cooling pit (16.1)，It is mounted on built-in fitting (16.3) in the surrounding of described cooling pit (16.1) and the hole wall (16.2) of bottom，The built-in fitting (16.3) being positioned on the hole wall (16.2) of surrounding is welded with side plate (16.5) through built on stilts section bar (16.4)，The built-in fitting (16.3) being positioned on the hole wall (16.2) of bottom is welded with base plate (16.6) through built on stilts section bar (16.4)，Four pieces of side plates (16.5) and base plate (16.6) constitute inner housing，And built on stilts formation ventilation voids between the hole wall (16.2) of inner housing and surrounding and bottom，Air vent (16.7) it is provided with on described base plate (16.6)；During use, blower fan is utilized to be poured into by wind in the ventilation voids between the hole wall (16.2) of inner housing and surrounding and bottom, due to side plate (16.5) non-perforate, cooling wind can only carry out air blast cooling via the steel ball that the air vent (16.7) on base plate (16.6) upwards blows out entering inner housing.
5. a kind of ball rolling technique, it is characterized in that: step 4 uses Pneumatic quantitative mechanism (15) quantitatively feed ball, described Pneumatic quantitative mechanism (15) includes sensor (15.1), this sensor (15.1) is installed on the helical axis of spiral quenching mechanism (7), the baffle plate connected is installed on the gathering sill that branch mechanism (6) is connected with spiral quenching mechanism (7) on cylinder or oil cylinder (15.2), and the piston rod of cylinder or oil cylinder (15.2) be inserted in this gathering sill；The sensor (15.1) treated unit controls an electromagnetic valve, this electromagnetic valve is serially connected on cylinder or the gas circuit of oil cylinder (15.2) or oil circuit, so that when the helical axis of spiral quenching mechanism (7) often turns over a circle, sensor (15.1) triggers once so that spiral quenching mechanism (7) once sent into by steel ball by the piston rod action of cylinder or oil cylinder (15.2).
null6. a kind of ball rolling technique，It is characterized in that: step 5 uses spiral quenching mechanism (7) carry out primary quenching，Described spiral quenching mechanism (7) includes housing (7.1) and media slot (7.2)，Described housing (7.1) internal frame is provided with helical axis (7.4)，Described media slot (7.2) is installed on housing (7.1) bottom，So that housing (7.1) and media slot (7.2) constitute a dielectric cavity，It is provided with on described housing (7.1) and is provided with two row's media ports (7.3) along its length，Two row's media ports (7.3) lay respectively at the both sides of housing (7.1)，And media port (7.3) is connected with dielectric cavity，Bottom media port (7.3) and housing (7.1) inwall difference in height is steel ball size 1/2nd，And media port (7.3) is horn-like，And this trumpet-shaped little head end is towards housing (7.1)，Big head section is towards dielectric cavity.
7. a kind of ball rolling technique, it is characterized in that: two row's media port (7.3) non-equidistance arrangements, it is positioned at media port (7.3) dense arrangement of spiral quenching mechanism (7) front end steel ball charging aperture, media port (7.3) the most sparse arrangement toward steel ball discharging opening direction, spiral quenching mechanism (7) rear end, during so that high temperature steel ball has just enter into spiral quenching mechanism (7), there are enough cooling mediums that it is carried out Cooling Quenching, and when steel ball gradually cools down and during discharging backward, the cooling medium imported gradually decreases, the inlet of cooling medium is adjusted according to steel ball variations in temperature, so that quenching effect is more preferably.
null8. a kind of ball rolling technique，It is characterized in that: step 6 uses secondary translation quenching mechanism (12) carry out secondary quenching，Described secondary translation quenching mechanism (12) includes frame (12.1)，One end of described frame (12.1) sets up driving shaft (12.3)，The other end sets up driven shaft (12.5)，Described driving shaft (12.3) two ends are respectively installed with drive sprocket (12.4)，Described driven shaft (12.5) two ends are respectively installed with driven sprocket (12.6)，In described frame (12.1), frame (12.1) length direction is provided with conveyor mat (12.10)，Article two, the chain (12.7) arranged along frame (12.1) length direction is positioned at conveyor mat (12.10) top，And drive sprocket (12.4)、Driven sprocket (12.6) is all meshed with chain (12.7)；Article two, connect between chain (12.7) and have the band iron (12.9) for carrying steel ball；The pitch of the chain (12.7) combined by carrier bar is more than the diameter of steel ball；Meanwhile, the height of the carrier bar constituting chain (12.7) is more than the radius of steel ball, thus prevents steel ball in transportation from dropping.
9. a kind of ball rolling technique, it is characterized in that: steel ball is directed in the chamber that rotary disk (204) is bigger by the transporting chain plate (102) of material-gathering device (17.1), rotating disk main shaft (203) drives rotary disk (204) to rotate, when the steel ball in rotary disk (204) turns to ball-dropping hole (206) top of fixed underpan (205), steel ball falls to ball guilding trough (207) via ball-dropping hole (206), thus landing is to translation conveyors of weighing (17.3)；In steel ball jumbo bag in ball guilding trough (207) landing to chain conveyor (302)；The weight information detected is transmitted to processing unit by weight sensor (303), it is provided with raster count device on ball guilding trough (207) simultaneously, this raster count device is similarly connected to processing unit, and this processing unit is by Control transporting chain plate (102), discharging oil cylinder (104), reductor (202) and the start and stop of flyer chain conveyer belt (302)；When in the jumbo bag that weight sensor (303) detects on chain conveyor (302) steel ball weigh less than value is set time, start discharging oil cylinder (104) and continue steel ball falling, and drive reductor (202) to drive rotary disk (204) to continue to rotate ball, detect by the upper raster count device installed of ball guilding trough (207) and measure so that measure the most accurate；When in the jumbo bag that weight sensor (303) detects on chain conveyor (302), the weight of steel ball reaches to arrange value, processing unit stops transporting chain plate (102), discharging oil cylinder (104) and the action of reductor (202), now starts flyer chain conveyer belt (302) and transmits the jumbo bag installing steel ball to translation conveyors (17.4) top discharge.
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| CN106077414B (en) * | 2016-05-24 | 2017-12-29 | 江阴市华正金属科技有限公司 | A kind of small dimension steel ball production technology |
| CN108044004A (en) * | 2017-11-17 | 2018-05-18 | 江阴东邦钢球机械有限公司 | A kind of ball rolling system and its rolling mill practice |
| CN112126767A (en) * | 2020-09-04 | 2020-12-25 | 湖北钱潮精密件有限公司 | Quenching and tempering process of GCr15 steel ball |
| CN114540590B (en) * | 2022-01-14 | 2023-12-15 | 伊莱特能源装备股份有限公司 | Steel ball quenching device |
| CN115478139B (en) * | 2022-10-14 | 2023-09-08 | 铜陵市大成轧辊有限责任公司 | Quenching equipment for machining medium-high chromium copper grinding balls |
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| US1101675A (en) * | 1912-11-25 | 1914-06-30 | Johnston & Sharp Mfg Company | Machine for making solid balls. |
| US2409649A (en) * | 1944-06-06 | 1946-10-22 | David E Wells | Ball forming mill |
| CN102127629B (en) * | 2011-01-27 | 2012-10-10 | 常熟市非凡金属制品有限公司 | Steel ball bearing and transporting mechanism for steel ball tempering furnace |
| CN102443741B (en) * | 2011-11-15 | 2013-11-27 | 攀钢集团工程技术有限公司 | Manufacturing method for steel ball for ball mill |
| CN102758140B (en) * | 2012-07-04 | 2014-03-26 | 攀钢集团攀枝花钢铁研究院有限公司 | High-carbon microalloying steel ball and production process thereof |
| CN103205554B (en) * | 2013-04-08 | 2014-05-07 | 常熟市非凡金属制品有限公司 | Steel ball conveyor device |
| CN104263892B (en) * | 2014-09-19 | 2016-05-04 | 常熟非凡新材股份有限公司 | Rod iron is the cooling device of intermediate frequency furnace and the fit structure of steel ball quenching device for heating |
| CN104232872B (en) * | 2014-09-19 | 2016-04-06 | 常熟市非凡金属制品有限公司 | There is the steel ball quenching device to intermediate frequency furnace refrigerating function |
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