CN105798565B - A kind of jaw crusher cutting edge blade and its manufacture method - Google Patents
A kind of jaw crusher cutting edge blade and its manufacture method Download PDFInfo
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- CN105798565B CN105798565B CN201610374574.4A CN201610374574A CN105798565B CN 105798565 B CN105798565 B CN 105798565B CN 201610374574 A CN201610374574 A CN 201610374574A CN 105798565 B CN105798565 B CN 105798565B
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- upper slitter
- lower knife
- cutting edge
- jaw crusher
- edge blade
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a kind of jaw crusher cutting edge blade and its manufacture method, belong to mechanical bit technical field.The jaw crusher cutting edge blade of the present invention, the front end face of its upper slitter cutter hub is provided with upper slitter blade face, the front end face of lower knife cutter hub is provided with lower knife blade face, the upper slitter back side of cutting edge blade is machined with upper slitter docking platform, detent is machined with upper slitter docking platform, lower knife back face is machined with the lower knife docking platform corresponding with upper slitter docking platform, and positioning boss is machined with lower knife docking platform, and the accurate butt junction location at the upper slitter back side and lower knife back face is realized by the cooperation of detent and positioning boss；The manufacture method of the cutting edge blade of the present invention, its step are：Raw material preparation, the annealing of rough forging, the roughing of rough forging, heat treatment and finishing.The cutting edge blade of the present invention can ensure that clamping is stable, have high-wearing feature and impact resistance, and blade shear effect is good, efficiency high, service life length.
Description
Technical field
The invention belongs to mechanical bit and its manufacture method technical field, more specifically to a kind of jaw crusher
Cutting edge blade and its manufacture method.
Background technology
Scrap steel crusher is a kind of crusher for being used for producing steel scrap broken material, is mainly used in car, household electrical appliance
And the steel member such as steel scrap scraps break process.Wherein, jaw crusher is a kind of common processing steel scrap equipment, mainly logical
The break process that two blades up and down to cooperate realize the materials such as steel scrap is crossed, it uses hydraulic-driven, easy to operate, is easy to
Maintenance, suitable for cutting middle-size and small-size strip steel scrap.
Jaw crusher cutting edge blade is the critical piece on jaw crusher, and the quality of its structure and performance directly affects
The crushing effect of steel scrap.The positioning of existing jaw crusher cutting edge blade implements positioning by mounting hole locking entirely, may cause
After upper lower knife body is overlapping in shattering process, upper and lower edge can not be completely superposed, and angle of throat mouth dislocation up and down in use
Angle is increasing, so as to weaken the active force to steel scrap, not only makes the serious wear of blade, greatly shortens the use of blade
Life-span, and cause steel scrap shear surface can not remain a plane, broken waste steel quality is difficult to the quality water for reaching requirement
It is flat.
Further, since China's steel scrap is various in style, complicated, the applying working condition of disintegrating machine is also had nothing in common with each other, therefore just
There is high requirement to hardness, wearability and impact resistance all performances of jaw crusher cutting edge blade.But showed using China
When having jaw crusher to steel scrap progress break process, the performance of disintegrating machine cutting edge blade can not meet to various steel scraps
Broken requirement is carried out, blade shear efficiency is low, and blade easily wears, is broken and metaboly, gently then influences knife
The cutting effect of piece, can not ensure to be broken steel scrap cutting, heavy then cause the direct of cutting edge blade to scrap, and be brought to manufacturer
Larger economic loss.And when the hardness of disintegrating machine cutting edge blade does not reach requirement, under impact force action up and down
The easy mutual dislocation of blade, so as to further weaken the active force to steel scrap, reduce the crushing effect to steel scrap.
Therefore, the performance of jaw crusher cutting edge blade how is improved, can meet to break different steel scraps
Broken requirement, and the dislocation of cutting edge blade during use is prevented, the service life for extending cutting edge blade is needed badly during steel scrap crushes
Solve the problems, such as.The manufacturer of jaw crusher cutting edge blade is also perplexed by above mentioned problem always, but can not but look for all the time
To a preferable solution.
The content of the invention
1. invention technical problems to be solved
It is an object of the invention to overcome the existing jaw crusher cutting edge blade clamping in China unstable, dislocation is also easy to produce,
Blade abrasion is serious and the shear efficiency of inequality and blade is low, and shearing quality is poor, it is difficult to which satisfaction crushes to various steel scraps
The deficiency of processing requirement, there is provided a kind of jaw crusher cutting edge blade and its manufacture method.Using technical scheme,
Jaw crusher cutting edge blade clamping can be made stable, the blade docking of bottom knife is neat in guarantee, and significantly improves blade
Wearability and impact resistance, blade shear effect is good, efficiency high, service life length.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention is：
A kind of jaw crusher cutting edge blade of the present invention, including upper slitter and lower knife, described upper slitter include upper slitter cutter hub,
Described lower knife includes lower knife cutter hub, and the front end face of upper slitter cutter hub is provided with upper slitter blade face, and the front end face of lower knife cutter hub is provided with
Lower knife blade face, the upper slitter back side of the cutting edge blade are machined with upper slitter docking platform, positioning are machined with upper slitter docking platform
Groove, lower knife back face are machined with the lower knife docking platform corresponding with upper slitter docking platform, and it is fixed to be machined with lower knife docking platform
Position boss, the accurate butt junction location at the upper slitter back side and lower knife back face is realized by the cooperation of detent and positioning boss.
Further, described upper slitter and lower knife are made using rough forging, and the component of the rough forging is by weight
Percentages are：C：0.55~0.65%；Si：0.50~0.80%；Cr：1.00~1.30%；W：2.20~2.70%；Mn：
0.40%；Surplus is Fe.
Further, upper slitter mounting hole is machined with described upper slitter cutter hub, be machined with described lower knife cutter hub with
The corresponding lower knife mounting hole of upper slitter mounting hole, upper slitter and lower knife are carried out by the locking of upper slitter mounting hole and lower knife mounting hole
Installation is fixed.
Further, the described upper slitter back side is machined with upper slitter installation base, and described lower knife back face is machined with lower knife
Installation base, and described upper slitter mounting hole runs through upper slitter installation base and upper slitter cutter hub, under described lower knife mounting hole runs through
Knife installation base and lower knife cutter hub, and the bottom surrounding of upper slitter installation base and lower knife installation base is equipped with R type reinforcements.
A kind of manufacture method of jaw crusher cutting edge blade, its step are：
Step 1: raw material prepare：Described jaw crusher cutting edge blade is made of rough forging, the rough forging
Component be by weight percentage：C：0.55~0.65%；Si：0.50~0.80%；Cr：1.00~1.30%；W：2.20
~2.70%；Mn：0.40%；Surplus is Fe；
Step 2: the annealing of rough forging：Rough forging in step 1 is subjected to isothermal annealing processing；
Step 3: the roughing of rough forging：After step 2 makes annealing treatment, roughing is carried out to rough forging, is made
Leave the workpiece of allowance for finish；
Step 4: heat treatment：To carry out annealing-quench successively through the rough machined jaw crusher cutting edge blade of step 3-
Temper；
Step 5: to the jaw crusher cutting edge blade being heat-treated through step 4 carries out fine grinding successively, wire cutting adds
Work, finishing, wire cutting shaping and reconditioning polishing.
Further, the annealing temperature for carrying out isothermal annealing processing in step 2 to rough forging is 750~760 DEG C,
Soaking time 8~10 hours, then with 20 DEG C/h of cooling rate, slow cooling is to≤650 DEG C, air cooling of finally coming out of the stove.
Further, what is made annealing treatment in step 4 concretely comprises the following steps：Will be through the rough machined jaw crusher of step 3
Cutting edge blade is heated to 730~750 DEG C and is incubated 2~3 hours, then cools to 500 DEG C with the furnace, air cooling of finally coming out of the stove.
Further, Quenching Treatment concretely comprises the following steps in step 4：Carried out before the quenching of jaw crusher cutting edge blade
Secondary preheating：500~550 DEG C are warming up to for the first time, insulation is continuously heating to 750 DEG C and carries out second of preheating after 10 minutes, then
Insulation 10 minutes, 950 DEG C are finally warming up to, are incubated 15 minutes, and carry out oil quenching of coming out of the stove.
Further, the hardening media of oil quenching selects 32# machine oil in step 4.
Further, temper concretely comprises the following steps in step 4：By the jaw crusher cutting edge of quenched processing
Blade carries out first time tempering at a temperature of being placed in 180~200 DEG C, tempering insulation time is 2 hours, then at a temperature of 220 DEG C
Second of temper is carried out, tempering insulation time is 2.5 hours；Third time temper is finally carried out at a temperature of 250 DEG C,
Tempering insulation time is 2 hours.
3. beneficial effect
Using technical scheme provided by the invention, compared with prior art, there is following remarkable result：
(1) a kind of jaw crusher cutting edge blade of the invention, the upper slitter back side of its cutting edge blade are machined with upper slitter docking
Platform, detent is machined with upper slitter docking platform, lower knife back face is machined with the lower knife pair corresponding with upper slitter docking platform
Platform is connect, positioning boss is machined with lower knife docking platform, on the one hand can be real by the cooperation of detent and positioning boss
The accurate butt junction location at the existing upper slitter back side and lower knife back face so that it is more close after upper slitter is overlapping with lower knife docking, to broken useless
Steel, which is formed, makes a concerted effort, and then alleviates the abrasion of blade, improves the service life of blade, broken product is also more regular, carries
High shearing quality；On the other hand upper slitter and the fastness of lower knife positioning can be improved, prevents upper slitter and lower knife during use
Misplace, so as to influence shear effect, cause blade easily to wear, service life shortens.
(2) a kind of jaw crusher cutting edge blade of the invention, described upper slitter and lower knife are made using rough forging,
The component of the rough forging is by weight percentage：C：0.55~0.65%；Si：0.50~0.80%；Cr：1.00~
1.30%；W：2.20~2.70%；Mn：0.40%；Surplus is Fe, and the present invention is optimized by the component to blade and proportioning
Design, so as to improve the combination properties such as the hardness, wearability and impact resistance of blade from raw material, it is set to meet to use
It is required that.
(3) bottom of a kind of jaw crusher cutting edge blade of the invention, its upper slitter installation base and lower knife installation base
Surrounding is equipped with R type reinforcements, bears load-carrying ability with lower knife installation base so as to enhance upper slitter installation base, is advantageous to prevent
Only blade mounting holes ftracture during processing or use, eliminate the phenomenon that upper and lower knife docking is misfitted well, add
The blade that work obtains fullys meet drawing requirement, and blade shear effect is good, efficiency high.
(4) manufacture method of a kind of jaw crusher cutting edge blade of the invention, is entered by the component to blade and proportioning
Row optimization design, and the heat treatment temperature of disintegrating machine cutting edge blade and time etc. are added according to experimental study and long-term production experience
Work technological parameter optimizes regulation and control, and so as to significantly improve the performance of cutting edge blade, the wearability of gained blade is good, anti-
Impact is strong, and blade abrasion is serious when solving use existing manufacture method, is not durable, and breaking scrap is of poor quality and cutting edge is easily broken
The problem of splitting.
Brief description of the drawings
Fig. 1 is a kind of assembly structure diagram of jaw crusher cutting edge blade of the present invention；
Fig. 2 is the structural representation of the upper slitter of the present invention；
Fig. 3 is the structural representation of the lower knife of the present invention.
Label declaration in accompanying drawing：
1st, upper slitter；101st, upper slitter docking platform；102nd, upper slitter installation base；103rd, detent；104th, upper slitter mounting hole；
105th, upper slitter blade face；106th, upper slitter blade；107th, the upper slitter back side；2nd, lower knife；201st, lower knife docking platform；202nd, lower knife installation
Boss；203rd, positioning boss；204th, lower knife mounting hole；205th, lower knife blade face；206th, lower knife blade；207th, lower knife back face.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Heretofore described upper and lower, forward and backward, the positive, back side, side etc. represent that the word in orientation is for being easy to express,
Actual orientation is not limited to that, now each face of cutting edge blade of the present invention is explained：Upper (lower) knife back face is
Refer to the plane for being machined with docking platform and installation base, upper (lower) knife front refers to the plane relative with the back side, and front end face is knife
Blade surface, rear end face are the side relative with blade face.
Embodiment 1
As shown in Figure 1-Figure 3, a kind of jaw crusher cutting edge blade of the present embodiment, including upper slitter 1 and lower knife 2, it is described
Upper slitter 1 include upper slitter cutter hub, described lower knife 2 includes lower knife cutter hub, and the front end face of upper slitter cutter hub is provided with upper slitter blade face
105, the side that upper slitter blade face 105 intersects with upper slitter front is upper slitter blade 106, and the front end face of the lower knife cutter hub is provided with lower knife
Blade face 205, the side that lower knife blade face 205 intersects with lower knife front is lower knife blade 206.The upper slitter back side of the cutting edge blade
107 are machined with upper slitter docking platform 101, and detent 103 is machined with upper slitter docking platform 101, and lower knife back face 207 is machined with
The lower knife docking platform 201 corresponding with upper slitter docking platform 101, positioning boss 203 is machined with lower knife docking platform 201,
The accurate of the upper slitter back side 107 and lower knife back face 207 can be realized by the snap fit of detent 103 and positioning boss 203
Butt junction location, by upper slitter 1 and lower knife 2 be mutually twisted make upper slitter 1 and lower knife 2 dock it is overlapping after combination it is more close, to broken
Shred scrap, which is formed, makes a concerted effort, and then alleviates the abrasion of blade, improves the service life of blade, broken product is also more advised
Then, shearing quality is improved.In addition, upper slitter 1 can also be improved with by the engaging with positioning boss 203 of detent 103
Knife 2 install fastness and stability, avoid cutting edge clamping bad and use during cutting edge blade work it is unstable, upper slitter 1
Misplaced with lower knife 2 because cooperation is bad, so as to influence shear effect, it is difficult to keep face to be cut to remain a plane, and hold
It is easily caused the edge of a knife and produces heavy wear, shortens its service life.
The described upper slitter back side 107 is machined with upper slitter installation base 102, and described lower knife back face 207 is machined with corresponding
Lower knife installation base 202, and the upper slitter being machined with upper slitter installation base 102 through the installation base and upper slitter cutter hub is installed
Hole 104, the lower knife mounting hole 204 through the installation base and lower knife cutter hub is machined with lower knife installation base 202, makes the knife back
Face 107 fits with lower knife back face 207, and by the locking of upper slitter mounting hole 104 and lower knife mounting hole 204 to upper slitter 1 with
Knife 2 carries out installation fixation.Upper slitter 1 and lower knife 2 are protruded from by the way that upper slitter mounting hole 104 and lower knife mounting hole 204 are each extended over
The back side, so as to further improve the fastness that upper slitter 1 and lower knife 2 assemble fixation, prevent that clamping is unstable.But in cyclic force
The lower upper slitter installation base 102 of effect is easily broken with lower knife installation base 202, so as to influence the fixed installation of cutting edge blade.
Upper slitter mounting hole 104 is equal close to the positive one end of lower knife close to the positive one end of upper slitter and lower knife mounting hole 204 in the present embodiment
Counterbore is machined with, upper slitter installation base 102 and lower knife installation base 202 are processed as cylindrical structural, and upper slitter installation base
102 and the bottom surrounding of lower knife installation base 202 be equipped with R type reinforcements, so as to enhance upper slitter installation base 102 and lower knife
Installation base 202 bears load-carrying ability, is advantageous to prevent blade mounting holes from ftractureing during processing or use, well
Eliminating the phenomenon that the docking of upper and lower knife is misfitted, the blade for processing to obtain fullys meet drawing requirement, blade shear effect is good,
Efficiency high.
The upper slitter 1 of the present embodiment and lower knife 2 are made using rough forging, and the component of the rough forging is by weight percentage
It is calculated as：C：0.55%；Si：0.80%；Cr：1.20%；W：2.20%；Mn：0.40%；Surplus is Fe, the present embodiment combination knife
The structure design of piece, and design is optimized by the component to blade and proportioning, so as to improve the hard of blade from raw material
The combination properties such as degree, wearability and impact resistance, make it to meet requirement.
The manufacture method of the above-mentioned jaw crusher cutting edge blade of the present embodiment, its step are：
Step 1: raw material prepare：Described jaw crusher cutting edge blade is made of rough forging, the rough forging
Component be by weight percentage：C：0.55%；Si：0.80%；Cr：1.20%；W：2.20%；Mn：0.40%；Surplus is
Fe。
Step 2: the annealing of rough forging：Rough forging in step 1 is subjected to isothermal annealing processing, annealing temperature
Spend for 750 DEG C, soaking time 10 hours, then with 20 DEG C/h of cooling rate, slow cooling is to≤650 DEG C, air cooling of finally coming out of the stove.
Step 3: the roughing of rough forging：After step 2 makes annealing treatment, roughing is carried out to rough forging, is made
The workpiece of allowance for finish is left, its is rough machined to concretely comprise the following steps：1. to the upper slitter cutter hub of jaw crusher cutting edge blade with
Lower knife cutter hub carries out rough milling plane and side respectively respectively puts surplus 2mm into cuboid, length；2. drawn at the upper slitter back side 107
Line stamps knife mounting hole 104,2- φ 5mm, upper slitter docking platform 101 and detent 103 position line；3. rough mill upper slitter installation
Boss 102 is cylindrical and upper slitter docking platform 101, each made allowance 3mm, and it is cylindrical and add that machining center rough mills upper slitter installation base 102
Counterbore 2- φ 38.5mm, deep 16mm are bored in Qiang Zhu, detent 103, each made allowance 1mm, the front of upper slitter 1；4. in lower knife back face 207
The position line of knife mounting hole 204,2- φ 22mm and lower knife docking platform 201 is laid in line；5. rough mill outside lower knife installation base 202
Round and lower knife docking platform 201, each made allowance 3mm, cylindrical lower knife installation base 202 and Jia Qiang Zhu, positioning boss 203 are rough milled,
Each made allowance 1mm；Bore counterbore 2- φ 50mm, deep 23mm in the lower front of knife 2.
Step 4: heat treatment：- quenching-will be carried out successively through the rough machined jaw crusher cutting edge blade of step 3 to be tempered
Processing, wherein：
(1) what is made annealing treatment concretely comprises the following steps：750 will be heated to through the rough machined jaw crusher cutting edge blade of step 3
DEG C insulation 2 hours, then cool to 500 DEG C with the furnace, air cooling of finally coming out of the stove；
(2) Quenching Treatment concretely comprises the following steps：Secondary preheating is carried out before the quenching of jaw crusher cutting edge blade：Rise for the first time
To 500 DEG C, insulation is continuously heating to 750 DEG C and carries out second of preheating temperature after 10 minutes, then is incubated 10 minutes, is finally warming up to
950 DEG C, 15 minutes are incubated, and carries out oil quenching of coming out of the stove, the hardening media of oil quenching selects 32# machine oil in the present embodiment.
(3) temper concretely comprises the following steps：The jaw crusher cutting edge blade of quenched processing is placed in 190 DEG C of temperature
Lower progress first time tempering, tempering insulation time is 2 hours, and second of temper is then carried out at a temperature of 220 DEG C, is tempered
Soaking time is 2.5 hours；Third time temper is finally carried out at a temperature of 250 DEG C, tempering insulation time is 2 hours.
Step 5: to the jaw crusher cutting edge blade being heat-treated through step 4 carries out fine grinding successively, wire cutting adds
Work, finishing, wire cutting shaping and reconditioning polishing, wherein：
Fine grinding：Fine grinding upper slitter 1 and lower knife 2 liang of planes (front and the back side) to size meets tolerance, on fine grinding
The rear end face and two sides adjacent with rear end face of knife 1 and lower knife 2, it is ensured that rear end face and and rear end face after above-mentioned fine grinding
Two intersecting sides with cutter hub plane (cutter hub front or the back side) vertical, 1~1.5mm of made allowance.
Finishing：According to drawing requirement finish-milling upper slitter installation base 102 is cylindrical and Jia Qiang Zhu, detent 103, lower knife peace
Dress boss 202 is cylindrical and adds strong Zhu, positioning boss 203, it is ensured that between upper slitter mounting hole 104 and lower knife mounting hole 204, Yi Jiding
Coordinate between position groove 103 and positioning boss 203 close.
Wire cutting is molded：Upper lower knife body is assembled and fastened using bolt, the jaw of fastening has been assembled by drawing wire cutting
Disintegrating machine cutting edge is molded.
Existing jaw crusher cutting edge blade is in the breaking scrap course of work, especially when steel scrap hardness is higher, operating mode
When complex, because upper slitter 1 and the lower clamping of knife 2 are unstable, easily misplace, so as to cause blade abrasion serious, cutting edge
Easy fracture, docking are misfitted, and breaking scrap is of poor quality, and otch is irregular, it is difficult to meet requirement.These above-mentioned problems are
Perplex the larger problem of jaw crusher manufacturing firm and terminal client, and never solved well.
Based on problem above, the present embodiment passes through the setting of detent on upper slitter 103 and positioning boss (203) on lower knife
And upper slitter adds setting up for strong Zhu with the cylindrical root circular arc of lower knife mounting hole, it ensure that bottom knife quite coincide in docking,
The upper and lower identical rear knife edge face of knife docking is smooth.The uniform force when edge of a knife acts on steel scrap, work surface intensity increase, reduces shearing
Dynamics, and then the abrasion of blade is alleviated, while the hardness of the cutting edge is further adjusted, the service life of blade is improved,
The steel scrap shear off is neat, in the same size, improves shearing quality.
In addition, applying working condition and performance of the inventor according to jaw crusher cutting edge blade, and combine its experimental study knot
Fruit and long-term production experience, selection, processing technology and Technology for Heating Processing also to blade optimize design, so as to significantly improve
The performance of cutting edge blade, can effectively prevent cutting edge blade from being deformed during processing and use, the present embodiment
The wearability of gained blade is good, impact resistance is strong, high in machining efficiency, solves tight using blade abrasion during existing manufacture method
Weight, it is not durable, breaking scrap is of poor quality and the problem of cutting edge easy fracture, still is able to be commonly used to not of the same race under various complex working conditions
The break process of class steel scrap, the service life of jaw crusher cutting edge blade is substantially prolongs, reduce production cost, and ensure
The fragmentation quality of steel scrap.
Embodiment 2
A kind of jaw crusher cutting edge blade of the present embodiment, including upper slitter 1 and lower knife 2, described upper slitter 1 include upper slitter
Cutter hub, described lower knife 2 include lower knife cutter hub, and the front end face of upper slitter cutter hub is provided with upper slitter blade face 105, before lower knife cutter hub
End face is provided with lower knife blade face 205.The upper slitter back side 107 of the cutting edge blade is machined with upper slitter docking platform 101, upper slitter docking
Detent 103 is machined with platform 101, lower knife back face 207 is machined with the lower knife docking corresponding with upper slitter docking platform 101
Platform 201, positioning boss 203 is machined with lower knife docking platform 201, passes through the engaging with positioning boss 203 of detent 103
The accurate butt junction location at the upper slitter back side 107 and lower knife back face 207 can be realized by coordinating.The upper slitter of the present embodiment and the docking of lower knife are flat
The length of platform is less than the width of cutter hub, is more kissed so as to be further ensured that detent 103 engages with positioning boss 203
Close, docking is even closer, to ensure that blade face is all the time at grade up and down, strengthen the use intensity of blade, shock resistance and
It is anti-wear, so as to increase the service life of blade and increase economic efficiency.
The described upper slitter back side 107 is machined with upper slitter installation base 102, and described lower knife back face 207 is machined with corresponding
Lower knife installation base 202, and the upper slitter being machined with upper slitter installation base 102 through the installation base and upper slitter cutter hub is installed
Hole 104, the lower knife mounting hole 204 through the installation base and lower knife cutter hub is machined with lower knife installation base 202, makes the knife back
Face 107 fits with lower knife back face 207, and by the locking of upper slitter mounting hole 104 and lower knife mounting hole 204 to upper slitter 1 with
Knife 2 carries out installation fixation.Upper slitter mounting hole 104 is close close to the positive one end of upper slitter and lower knife mounting hole 204 in the present embodiment
Lower positive one end of knife is machined with counterbore, and upper slitter installation base 102 and lower knife installation base 202 are processed as cylindrical knot
Structure, and the bottom surrounding of upper slitter installation base 102 and lower knife installation base 202 is equipped with R type reinforcements.Above-mentioned upper slitter mounting hole
104 are processed as square opening, and lower knife mounting hole 204 is processed as circular port.
In the present embodiment, on upper slitter 1 and lower knife 2 side adjacent with its blade face be processed as with cutter hub rear end face and
The vertical plane in cutter hub front, and blade face is obliquely installed relative to the side, specifically, blade face and the angle of the side
α (i.e. up and down knife blade face relative to upper and lower knife cutter hub angle) 57 °~60 ° can be processed as the case may be so that knife
Piece is in optimum state, helps to reduce blade abrasion, improves shear strength, and extend blade service life.In the present embodiment
The angle α of upper and lower knife blade face and cutter hub is 57 °.Another side adjacent with its blade face processes on upper slitter 1 and lower knife 2
For roll over face, the folding face is vertical with cutter hub rear end face close to one section of plane of cutter hub rear end face, close to blade face one section of plane and
The angle β of blade face is less than 90 °, and being advantageous to knife up and down by this kind of structure design is tightly combined, and engagement is firm, and upper and lower knife
Keep at grade, enhancing broken dynamics of the cutting edge blade to steel scrap after blade surface engagement, improve shearing quality, and simultaneously
The distribution of force of cutting edge blade in use can be improved, be advantageous to prevent blade breakages and mitigate blade abrasion.
The upper slitter 1 of the present embodiment and lower knife 2 are made using rough forging, and the component of the rough forging is by weight percentage
It is calculated as：C：0.65%；Si：0.50%；Cr：1.00%；W：2.70%；Mn：0.40%；Surplus is Fe.
The manufacture method of the above-mentioned jaw crusher cutting edge blade of the present embodiment, its step are：
Step 1: raw material prepare：Described jaw crusher cutting edge blade is made of rough forging, the rough forging
Component be by weight percentage：C：0.65%；Si：0.50%；Cr：1.00%；W：2.70%；Mn：0.40%；Surplus is
Fe。
Step 2: the annealing of rough forging：Rough forging in step 1 is subjected to isothermal annealing processing, annealing temperature
Spend for 760 DEG C, soaking time 8 hours, then with 25 DEG C/h of cooling rate, slow cooling is to≤650 DEG C, air cooling of finally coming out of the stove.
Step 3: the roughing of rough forging：After step 2 makes annealing treatment, roughing is carried out to rough forging, is made
The workpiece of allowance for finish is left, its is rough machined to concretely comprise the following steps：1. to the upper slitter cutter hub of jaw crusher cutting edge blade with
Lower knife cutter hub carries out rough milling plane and side respectively respectively puts surplus 2mm into cuboid, length；2. drawn at the upper slitter back side 107
Line stamps knife mounting hole 104,2- φ 5mm, upper slitter docking platform 101 and detent 103 position line；3. rough mill upper slitter installation
Boss 102 is cylindrical and upper slitter docking platform 101, each made allowance 3mm, and it is cylindrical and add that machining center rough mills upper slitter installation base 102
Counterbore 2- φ 38.5mm, deep 16mm are bored in Qiang Zhu, detent 103, each made allowance 1mm, the front of upper slitter 1；4. in lower knife back face 207
The position line of knife mounting hole 204,2- φ 22mm and lower knife docking platform 201 is laid in line；5. rough mill outside lower knife installation base 202
Round and lower knife docking platform 201, each made allowance 3mm, cylindrical lower knife installation base 202 and Jia Qiang Zhu, positioning boss 203 are rough milled,
Each made allowance 1mm；Bore counterbore 2- φ 50mm, deep 23mm in the lower front of knife 2.
Step 4: heat treatment：- quenching-will be carried out successively through the rough machined jaw crusher cutting edge blade of step 3 to be tempered
Processing, wherein：
(1) what is made annealing treatment concretely comprises the following steps：730 will be heated to through the rough machined jaw crusher cutting edge blade of step 3
DEG C insulation 3 hours, then cool to 500 DEG C with the furnace, air cooling of finally coming out of the stove；
(2) Quenching Treatment concretely comprises the following steps：Secondary preheating is carried out before the quenching of jaw crusher cutting edge blade：Rise for the first time
To 550 DEG C, insulation is continuously heating to 750 DEG C and carries out second of preheating temperature after 10 minutes, then is incubated 10 minutes, is finally warming up to
950 DEG C, 15 minutes are incubated, and carries out oil quenching of coming out of the stove, the hardening media of oil quenching selects 32# machine oil in the present embodiment.
(3) temper concretely comprises the following steps：The jaw crusher cutting edge blade of quenched processing is placed in 200 DEG C of temperature
Lower progress first time tempering, tempering insulation time is 2 hours, and second of temper is then carried out at a temperature of 220 DEG C, is tempered
Soaking time is 2.5 hours；Third time temper is finally carried out at a temperature of 250 DEG C, tempering insulation time is 2 hours.
Step 5: to the jaw crusher cutting edge blade being heat-treated through step 4 carries out fine grinding successively, wire cutting adds
Work, finishing, wire cutting shaping and reconditioning polishing, wherein：
Fine grinding：Fine grinding upper slitter 1 and lower knife 2 liang of planes (front and the back side) to size meets tolerance, on fine grinding
The rear end face and two sides adjacent with rear end face of knife 1 and lower knife 2, it is ensured that rear end face and and rear end face after above-mentioned fine grinding
Two intersecting sides with cutter hub plane (cutter hub front or the back side) vertical, 1~1.5mm of made allowance.
Finishing：According to drawing requirement finish-milling upper slitter installation base 102 is cylindrical and Jia Qiang Zhu, detent 103, lower knife peace
Dress boss 202 is cylindrical and adds strong Zhu, positioning boss 203, it is ensured that between upper slitter mounting hole 104 and lower knife mounting hole 204, Yi Jiding
Coordinate between position groove 103 and positioning boss 203 close.
Wire cutting is molded：Upper lower knife body is assembled and fastened using bolt, the jaw of fastening has been assembled by drawing wire cutting
Disintegrating machine cutting edge is molded.
Embodiment 3
A kind of jaw crusher cutting edge blade of the present embodiment, including upper slitter 1 and lower knife 2, described upper slitter 1 include upper slitter
Cutter hub, described lower knife 2 include lower knife cutter hub, and the front end face of upper slitter cutter hub is provided with upper slitter blade face 105, before lower knife cutter hub
End face is provided with lower knife blade face 205.The upper slitter back side 107 of the cutting edge blade is machined with upper slitter docking platform 101, upper slitter docking
Detent 103 is machined with platform 101, lower knife back face 207 is machined with the lower knife docking corresponding with upper slitter docking platform 101
Platform 201, positioning boss 203 is machined with lower knife docking platform 201, passes through the engaging with positioning boss 203 of detent 103
The accurate butt junction location at the upper slitter back side 107 and lower knife back face 207 can be realized by coordinating.The upper slitter of the present embodiment and the docking of lower knife are flat
The length of platform is less than the width of cutter hub, is more kissed so as to be further ensured that detent 103 engages with positioning boss 203
Close, docking is even closer, to ensure that blade face is all the time at grade up and down, strengthen the use intensity of blade, shock resistance and
It is anti-wear, so as to increase the service life of blade and increase economic efficiency.
The described upper slitter back side 107 is machined with upper slitter installation base 102, and described lower knife back face 207 is machined with corresponding
Lower knife installation base 202, and the upper slitter being machined with upper slitter installation base 102 through the installation base and upper slitter cutter hub is installed
Hole 104, the lower knife mounting hole 204 through the installation base and lower knife cutter hub is machined with lower knife installation base 202, makes the knife back
Face 107 fits with lower knife back face 207, and by the locking of upper slitter mounting hole 104 and lower knife mounting hole 204 to upper slitter 1 with
Knife 2 carries out installation fixation.Upper slitter mounting hole 104 is close close to the positive one end of upper slitter and lower knife mounting hole 204 in the present embodiment
Lower positive one end of knife is machined with counterbore, and upper slitter installation base 102 and lower knife installation base 202 are processed as cylindrical knot
Structure, and the bottom surrounding of upper slitter installation base 102 and lower knife installation base 202 is equipped with R type reinforcements.Above-mentioned upper slitter mounting hole
104 are processed as square opening, and lower knife mounting hole 204 is processed as circular port.
In the present embodiment, on upper slitter 1 and lower knife 2 side adjacent with its blade face be processed as with cutter hub rear end face and
The vertical plane in cutter hub front, and the angle α of blade face and the side is 60 °.On upper slitter 1 and lower knife 2 with its blade face phase
Another adjacent side is processed as folding face, is advantageous to strengthen crushing force of the cutting edge blade to steel scrap by this kind of structure design
Degree, shearing quality is improved, and the distribution of force of cutting edge blade in use can be improved simultaneously, be advantageous to prevent blade from breaking
Split and mitigate blade abrasion.
The upper slitter 1 of the present embodiment and lower knife 2 are made using rough forging, and the component of the rough forging is by weight percentage
It is calculated as：C：0.60%；Si：0.65%；Cr：1.30%；W：2.50%；Mn：0.40%；Surplus is Fe.
The manufacture method of the above-mentioned jaw crusher cutting edge blade of the present embodiment, its step are：
Step 1: raw material prepare：Described jaw crusher cutting edge blade is made of rough forging, the rough forging
Component be by weight percentage：C：0.60%；Si：0.65%；Cr：1.30%；W：2.50%；Mn：0.40%；Surplus is
Fe。
Step 2: the annealing of rough forging：Rough forging in step 1 is subjected to isothermal annealing processing, annealing temperature
Spend for 755 DEG C, soaking time 9 hours, then with 30 DEG C/h of cooling rate, slow cooling is to≤650 DEG C, air cooling of finally coming out of the stove.
Step 3: the roughing of rough forging：After step 2 makes annealing treatment, roughing is carried out to rough forging, is made
The workpiece of allowance for finish is left, its is rough machined to concretely comprise the following steps：1. to the upper slitter cutter hub of jaw crusher cutting edge blade with
Lower knife cutter hub carries out rough milling plane and side respectively respectively puts surplus 2mm into cuboid, length；2. drawn at the upper slitter back side 107
Line stamps knife mounting hole 104,2- φ 5mm, upper slitter docking platform 101 and detent 103 position line；3. rough mill upper slitter installation
Boss 102 is cylindrical and upper slitter docking platform 101, each made allowance 3mm, and it is cylindrical and add that machining center rough mills upper slitter installation base 102
Counterbore 2- φ 38.5mm, deep 16mm are bored in Qiang Zhu, detent 103, each made allowance 1mm, the front of upper slitter 1；4. in lower knife back face 207
The position line of knife mounting hole 204,2- φ 22mm and lower knife docking platform 201 is laid in line；5. rough mill outside lower knife installation base 202
Round and lower knife docking platform 201, each made allowance 3mm, cylindrical lower knife installation base 202 and Jia Qiang Zhu, positioning boss 203 are rough milled,
Each made allowance 1mm；Bore counterbore 2- φ 50mm, deep 23mm in the lower front of knife 2.
Step 4: heat treatment：- quenching-will be carried out successively through the rough machined jaw crusher cutting edge blade of step 3 to be tempered
Processing, wherein：
(1) what is made annealing treatment concretely comprises the following steps：740 will be heated to through the rough machined jaw crusher cutting edge blade of step 3
DEG C insulation 2.5 hours, then cool to 500 DEG C with the furnace, air cooling of finally coming out of the stove；
(2) Quenching Treatment concretely comprises the following steps：Secondary preheating is carried out before the quenching of jaw crusher cutting edge blade：Rise for the first time
To 530 DEG C, insulation is continuously heating to 750 DEG C and carries out second of preheating temperature after 10 minutes, then is incubated 10 minutes, is finally warming up to
950 DEG C, 15 minutes are incubated, and carries out oil quenching of coming out of the stove, the hardening media of oil quenching selects 32# machine oil in the present embodiment.
(3) temper concretely comprises the following steps：The jaw crusher cutting edge blade of quenched processing is placed in 180 DEG C of temperature
Lower progress first time tempering, tempering insulation time is 2 hours, and second of temper is then carried out at a temperature of 220 DEG C, is tempered
Soaking time is 2.5 hours；Third time temper is finally carried out at a temperature of 250 DEG C, tempering insulation time is 2 hours.
Step 5: to the jaw crusher cutting edge blade being heat-treated through step 4 carries out fine grinding successively, wire cutting adds
Work, finishing, wire cutting shaping and reconditioning polishing, wherein：
Fine grinding：Fine grinding upper slitter 1 and lower knife 2 liang of planes (front and the back side) to size meets tolerance, on fine grinding
The rear end face and two sides adjacent with rear end face of knife 1 and lower knife 2, it is ensured that rear end face and and rear end face after above-mentioned fine grinding
Two intersecting sides with cutter hub plane (cutter hub front or the back side) vertical, 1~1.5mm of made allowance.
Finishing：According to drawing requirement finish-milling upper slitter installation base 102 is cylindrical and Jia Qiang Zhu, detent 103, lower knife peace
Dress boss 202 is cylindrical and adds strong Zhu, positioning boss 203, it is ensured that between upper slitter mounting hole 104 and lower knife mounting hole 204, Yi Jiding
Coordinate between position groove 103 and positioning boss 203 close.
Wire cutting is molded：Upper lower knife body is assembled and fastened using bolt, the jaw of fastening has been assembled by drawing wire cutting
Disintegrating machine cutting edge is molded.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (9)
1. a kind of jaw crusher cutting edge blade, including upper slitter (1) and lower knife (2), described upper slitter (1) include upper slitter cutter hub,
Described lower knife (2) includes lower knife cutter hub, and the front end face of upper slitter cutter hub is provided with upper slitter blade face (105), before lower knife cutter hub
End face is provided with lower knife blade face (205), it is characterised in that：The upper slitter back side (107) of the cutting edge blade is machined with upper slitter docking
Platform (101), detent (103) is machined with upper slitter docking platform (101), lower knife back face (207) is machined with and upper slitter pair
The corresponding lower knife docking platform (201) of platform (101) is connect, positioning boss (203) is machined with lower knife docking platform (201),
The accurate of the upper slitter back side (107) and lower knife back face (207) is realized by the cooperation of detent (103) and positioning boss (203)
Butt junction location；Described upper slitter (1) and lower knife (2) is made using rough forging, the component percentage by weight of the rough forging
Than being calculated as：C：0.55~0.65%；Si：0.50~0.80%；Cr：1.00~1.30%；W：2.20~2.70%；Mn：
0.40%；Surplus is Fe.
A kind of 2. jaw crusher cutting edge blade according to claim 1, it is characterised in that：Add on described upper slitter cutter hub
Work has upper slitter mounting hole (104), and the lower knife mounting hole corresponding with upper slitter mounting hole (104) is machined with described lower knife cutter hub
(204), upper slitter (1) and lower knife (2) install admittedly by the locking of upper slitter mounting hole (104) and lower knife mounting hole (204)
It is fixed.
A kind of 3. jaw crusher cutting edge blade according to claim 2, it is characterised in that：The described upper slitter back side
(107) upper slitter installation base (102) is machined with, described lower knife back face (207) is machined with lower knife installation base (202), and institute
The upper slitter mounting hole (104) stated runs through upper slitter installation base (102) and upper slitter cutter hub, and described lower knife mounting hole (204) is run through
Lower knife installation base (202) and lower knife cutter hub, and the bottom surrounding of upper slitter installation base (102) and lower knife installation base (202)
It is equipped with R type reinforcements.
4. a kind of manufacture method of jaw crusher cutting edge blade according to any one of claim 1-3, its feature exist
In：Its step is：
Step 1: raw material prepare：Described jaw crusher cutting edge blade is made of rough forging, the group of the rough forging
Divide and be by weight percentage：C：0.55~0.65%；Si：0.50~0.80%；Cr：1.00~1.30%；W：2.20~
2.70%；Mn：0.40%；Surplus is Fe；
Step 2: the annealing of rough forging：Rough forging in step 1 is subjected to isothermal annealing processing；
Step 3: the roughing of rough forging：After step 2 makes annealing treatment, roughing is carried out to rough forging, is made and leaves
The workpiece of allowance for finish；
Step 4: heat treatment：To carry out annealing successively through the rough machined jaw crusher cutting edge blade of step 3-quenching-be tempered
Processing；
Step 5: fine grinding, linear cutter, essence are carried out successively to the jaw crusher cutting edge blade being heat-treated through step 4
Processing, wire cutting shaping and reconditioning polishing.
A kind of 5. manufacture method of jaw crusher cutting edge blade according to claim 4, it is characterised in that：In step 2
The annealing temperature that isothermal annealing processing is carried out to rough forging is 750~760 DEG C, soaking time 8~10 hours, then with 20
DEG C/h cooling rate, slow cooling is to≤650 DEG C, air cooling of finally coming out of the stove.
A kind of 6. manufacture method of jaw crusher cutting edge blade according to claim 4, it is characterised in that：In step 4
Annealing concretely comprises the following steps：730~750 DEG C of insulations will be heated to through the rough machined jaw crusher cutting edge blade of step 3
2~3 hours, then cool to 500 DEG C with the furnace, air cooling of finally coming out of the stove.
A kind of 7. manufacture method of jaw crusher cutting edge blade according to claim 4, it is characterised in that：In step 4
Quenching Treatment concretely comprises the following steps：Secondary preheating is carried out before the quenching of jaw crusher cutting edge blade：It is warming up to 500 for the first time~
550 DEG C, insulation is continuously heating to 750 DEG C and carries out second of preheating after 10 minutes, then is incubated 10 minutes, is finally warming up to 950 DEG C,
Insulation 15 minutes, and carry out oil quenching of coming out of the stove.
A kind of 8. manufacture method of jaw crusher cutting edge blade according to claim 7, it is characterised in that：In step 4
The hardening media of oil quenching selects 32# machine oil.
A kind of 9. manufacture method of jaw crusher cutting edge blade according to claim 4, it is characterised in that：In step 4
Temper concretely comprises the following steps：Carried out at a temperature of the jaw crusher cutting edge blade of quenched processing is placed in into 180~200 DEG C
It is tempered for the first time, tempering insulation time is 2 hours, second of temper is then carried out at a temperature of 220 DEG C, when tempering is incubated
Between be 2.5 hours；Third time temper is finally carried out at a temperature of 250 DEG C, tempering insulation time is 2 hours.
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| CN108747248A (en) * | 2018-06-19 | 2018-11-06 | 安徽日升机械制造有限公司 | A kind of manufacturing method of the wear-resisting sewing machine cutting edge of high-precision |
| CN109576457A (en) * | 2018-12-19 | 2019-04-05 | 中钢集团邢台机械轧辊有限公司 | A kind of heat treatment method of cutting edge |
| CN110355390B (en) * | 2019-06-11 | 2021-02-12 | 郑州华菱超硬材料有限公司 | Ceramic adhesive cubic boron nitride cutter suitable for processing high-temperature alloy |
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| CN201711596U (en) * | 2010-07-02 | 2011-01-19 | 安徽天一重工股份有限公司 | Composite cutting edge for shearing hot steel billet |
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| JP4739614B2 (en) * | 2001-09-20 | 2011-08-03 | 株式会社テクノサカト | Crushing machine |
| JP2009101323A (en) * | 2007-10-25 | 2009-05-14 | Hitachi Constr Mach Co Ltd | Engine crushing attachment and engine dismantling machine |
| US8646709B2 (en) * | 2012-04-11 | 2014-02-11 | John R. Ramun | Jaw set with serrated cutting blades |
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|---|---|---|---|---|
| CN201711596U (en) * | 2010-07-02 | 2011-01-19 | 安徽天一重工股份有限公司 | Composite cutting edge for shearing hot steel billet |
| CN103433551A (en) * | 2013-09-04 | 2013-12-11 | 马鞍山市恒利达机械刀片有限公司 | Swinging type concave-convex shear blade and manufacturing method thereof |
| CN203900614U (en) * | 2014-06-04 | 2014-10-29 | 南阳汉冶特钢有限公司 | Reusable shear blade for hydraulic double side trim shear |
| CN205253205U (en) * | 2015-12-29 | 2016-05-25 | 烟台金山重工机械设备有限公司 | Novel smash pincers |
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