CN105887638A - Milling machine cutting pick - Google Patents
Milling machine cutting pick Download PDFInfo
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- CN105887638A CN105887638A CN201610315293.1A CN201610315293A CN105887638A CN 105887638 A CN105887638 A CN 105887638A CN 201610315293 A CN201610315293 A CN 201610315293A CN 105887638 A CN105887638 A CN 105887638A
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- pick
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- wear
- cutting pick
- milling machine
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
- E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
- E01C23/088—Rotary tools, e.g. milling drums
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- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention provides a milling machine cutting pick, which mainly solves the technical problems of great eccentric wearing, great abrasion, short service life and the like of the existing pavement cutting pick. The milling machine cutting pick is mainly characterized in that the milling machine cutting pick comprises a cutting pick body, a wear-resistant circular ring and a cutting pick head, wherein the cutting pick body comprises a cutting pick body head, a large lug boss, a small lug boss and a cutting pick body rod part; the cutting pick body head part comprises a pyramid frustum and a lug boss; the wear-resistant circular ring is positioned on the small lug boss; a conical groove matched with the wear-resistant circular ring is arranged in the large lug boss; the rod part of the cutting pick body is in a cylindrical shape and is provided with an annular notch; the cutting pick head comprises a cutting pick seat and a cutting pick point; the cutting pick seat is in a pyramid frustum shape and is provided with a groove; the surface of the cutting pick point is a rotating surface; a wear-resistant coating is arranged on the cutting pick head. The rotation smoothness of the milling machine cutting pick can be ensured; the eccentric wearing is prevented; in addition, the wear-resistant performance of the milling machine cutting pick can be enhanced; the service life of the milling machine cutting pick is effectively prolonged. The milling machine cutting pick is mainly applied to asphalt pavement milling machines.
Description
Technical field
The invention belongs to machinery manufacturing technology field, relate to a kind of asphalt road plane milling machine, be specifically related to the milling machine pick of milling machine.
Background technology
Asphalt road plane milling machine is for carrying out milling and plane operation to bituminous paving, and the equipment of milling machine is milling and planing drum, during milling and plane operation, milling and planing drum High Rotation Speed, utilize the pick point of high intensity to impact road surface, thus milling road surface.In the prior art, milling machine pick is mainly made up of hard alloy pick point and medium carbon alloy steel pick body.In milling machine pick milling process, the pick point of pick and the head of pick body contact with each other with milling material and milling transition face and produce severe friction, the produced radial load of friction provides friction torque for pick, to guarantee to have when pick normally works spinning performance, enable pick uniformly normal wear.
But during practice of construction, asphalt concrete pavement is to be binder with high-consistency pitch, through mineral material pressure mixs such as high-temperature heating and quartz, sandstones, paves the most while hot, roll and form.Its main component has the elements such as silicon, calcium, aluminium, carbon, potassium, iron, and what content was more is silicon and calcium.In ground surface material, the hardness of hard grain is up to HV=900～1280, be equivalent to more than Rockwell hardness HRC67, than the hardness the highest (i.e. higher than milling machine pick body material hardness) after carburizing and quenching such as general steel alloy (such as 20CrMnTi), close with the hardness of hard alloy (HRC74～80), therefore the abrasion of pick point can quickly, and the fore-end abrasion of pick body is the most serious, in operation, the fore-end of pick body often weares and teares prior to hard alloy pick point, milling machine cutting pick head is made to lose the support protective effect to hard alloy pick point, so that hard alloy pick point is in the case of the most completely worn out, easily come off from the head entirety of milling machine pick body, cause milling machine cut tooth losing efficiency；And in the milling mechanism course of work, always have a certain proportion of pick be stuck in tool rest can not rotation, thus pick is sharp, pick body head only produces abrasion in side, produces eccentric wear.If the long-time eccentric wear of cutting pick head connecting pick point, then can produce excessive wear, now the hardness of pick point still has the most more than needed, as changed pick not in time, the cutting pick head then worn and torn is not enough to support pick point cutting bituminous paving and be broken off, and then begin to wear out tool rest, equipment is caused more major injury.Find that the abrasion of pick occurs mainly in pick point and the head of pick body by above-mentioned analysis.
Chinese Patent Application No.: 201420786840.0, Authorization Notice No.: CN204311334U, utility model is entitled: cutter of milling-planing machine, and this application scheme discloses a kind of cutter of milling-planing machine, including cutter head, pad and cutter hub；Cutter hub includes that round platform and cylinder, round platform and cylinder are fixedly connected into the cutter hub of desk lamp shape；Cutter head is fixing with the upper surface of round platform to be connected；Pad structure ringwise, ring set is also fixed on cylinder middle part；It is evenly arranged with jump ring in cylinder side face, pad bottom；It is uniformly arranged fluted at round platform side face；The A-shaped geometry of groove, upper notch is acute angle, and bottom is circular groove.The cutter hub of this utility model desk lamp shape makes cutter hub become shaped form with the groove of A font geometry on cutter hub, not only facilitate cutter hub when cutting to rotate, also ensure that the balance of down force, make whole tool wear uniform, achieve and strengthen cutter hub and the wearability of cutter head, the purpose of raising anti-impact force, and then improve operating efficiency, reduce use cost.But this utility model is in order to make pick even wearing, arranges groove on pick body, understands increasing friction force when cutting, and the pick body material of this utility model is abrasion-resistant stee so that pick body weares and teares faster, thus reduces the service life of pick.
Chinese Patent Application No.: 201520174354.8, Authorization Notice No.: CN204530410U, utility model is entitled: a kind of New polycrystal diamond composite sheet highway tooth, this application scheme discloses a kind of New polycrystal diamond composite sheet highway tooth, including toothholder, highway tooth steel body, cemented carbide base and composite polycrystal-diamond；Described highway tooth steel body is arranged on toothholder, and cemented carbide base is arranged on highway tooth steel body, and composite polycrystal-diamond is arranged on cemented carbide base.This utility model is that the high-wearing feature of composite polycrystal-diamond is applied on the highway tooth of milling machine, accelerates milling efficiency, improves the service life of highway tooth, decreases highway dental transition and changes number of times, and then reduce construction cost, improves operating efficiency.But this utility model is for the supporting role to composite polycrystal-diamond of the enhancing hard alloy base, highway tooth is fixed as an angle determined, make the highway tooth can not be around toothholder central rotation, the eccentric wear that so will result in highway tooth is serious, produce excessive wear, reduce the service life of milling machine pick.
The most effectively solve eccentric wear problem and the wear problem of pick body of pavement milling machine pick, and then extend the service life of milling machine pick, be that those skilled in the art are presently required and solve the technical problem that.
Summary of the invention
It is an object of the invention to provide a kind of pick body that can effectively solve in work progress easily wear and tear or easily produce the technical problems such as eccentric wear, the milling machine pick that can effectively extend again milling machine pick service life.
To achieve these goals, the technical solution adopted in the present invention is: it includes pick body 1, wear-resisting annulus 2 and the cutting pick head 3 being set with that cooperate, described cutting pick head 3 includes pick box 31 and the pick point 32 being mutually fixed into entirety, and pick box 31 is frustum structure, and pick point 32 is pointed cone structure；It is provided with wear-resistant coating in pick point 32 and pick box 31 front end or the periphery of cutting pick head 3；Described pick body 1 includes pick body head 11 and the pick body rod portion 14 being mutually fixed into entirety；In pick body head 11 front end of pick body 1, boss 112 is set, the end that connects in cutting pick head 3 is provided with the groove 311 matched with the boss 112 on pick body head 11, boss 112 engagement sleeves of pick body head 11 is contained in the groove 311 of cutting pick head 3, and the pick body head 11 of pick body 1 is connected with the periphery smooth-going of the pick box 31 of cutting pick head 3；It is provided with cone tank 121 bottom pick body head 11 rear end, wear-resisting annulus 2 inner ring is provided with the bulge loop 21 matched with cone tank 121, the inner ring bulge loop cooperation of wear-resisting annulus 2 is packed in pick body head 11 rear end cone tank 121, pick body head 11 periphery is protruded in the periphery of wear-resisting annulus 2, constitutes ledge structure.
Boss 112 of the present invention is polygon boss or cylindrical protrusions, and described groove 311 is cylindrical or polygonal grooves；Also can be provided with in pick body head 11 rear end consistent with pick box 31 tapering and connect end periphery terrace with edge of the same size 111, being provided with in pick body head 11 front end and be connected the boss 112 that end groove 311 matches with cutting pick head 3；Set gradually big boss 12 and the small boss 13 being mutually fixed into entirety at pick body head 11 rear portion of pick body 1, the outer circumference diameter of big boss 12 equals to or more than terrace with edge 111 periphery maximum gauge；Small boss 13 outer circumference diameter is less than big boss 12 external diameter, and close with the inner ring bulge loop diameter compatible of wear-resisting annulus 2, being provided with the cone tank 121 that the inner ring bulge loop with wear-resisting annulus 2 matches between big boss 12 and small boss 13, wear-resisting annulus 2 engagement sleeves is contained on small boss 13.
Bulge loop 21 of the present invention is protruding for taper or taper type, and protruding 21 highlight surface, wear-resisting annulus 2 one or both sides.
The present invention also can be provided with the groove 311 matched with the boss 112 on pick body head 11 on pick box 31.
Pick body 1 of the present invention may be used without soldering with the connected mode of cutting pick head 3 and is connected.
Cutting pick head 3 of the present invention may be used without hard alloy or high-speed steel is made, and described wear-resisting annulus 2 uses high-speed steel to be made.
Wear-resistant coating of the present invention is alternatively titanium nitride coating 33；The thickness of described titanium nitride coating 33 is 0.004～0.005mm.
Terrace with edge 111 of the present invention is alternatively positive terrace with edge, and the inclination angle of terrace with edge 111 is 78-82 °, and the polygonal limit number of terrace with edge 111 bottom surface is 8 to 12, terrace with edge 111 incline is provided with fillet, fillet a diameter of 2～4mm, terrace with edge 111 has the boss 112 of a diameter of 10～18mm, and height is 5～10mm.
Pick body rod portion 14 of the present invention is alternatively cylinder, and is provided with annular breach 141 at tail end, and the degree of depth of annular breach 141 is 3～3.5mm.
Pick box 31 of the present invention is alternatively positive prismatic table shape, and the inclination angle of terrace with edge is 78-82 °, and the polygonal limit number of terrace with edge bottom surface is 8 to 12, and terrace with edge incline is provided with fillet, fillet a diameter of 2～5mm；The crown circular diameter of described pick point 32 is 2～5mm, and crown cone angle is 40～70 °, a length of 15mm of described pick point, a length of the 15～20mm of described pick box 31；A diameter of 43mm of wear-resisting annulus 2, thickness is 4mm；The diameter of described big boss 12 and small boss 13 is respectively as 34mm and 21mm.
After using said structure, owing to the pick point of cutting pick head has certain cone angle, therefore the Milling Force of pick can effectively be reduced, and it is provided with arcwall face, therefore chip breaking that can be convenient and reliable, reduce the chip impact to pick box, thus be effectively reduced the abrasion of pick box, improve the service life of milling machine pick.
Owing to wear-resisting annulus is made up of high-speed steel, surface and bottom surface are tapered, cone tank on the surface of taper and the big boss of pick coordinates, the bottom surface of taper and the taper locating surface precise match of tool rest, when ensureing work, pick is in good Shaft alignment state in tool rest, reduces pick body rod portion and the abrasion in tool rest hole.
Compared with tradition milling machine pick, in addition to being provided with wear-resistant coating in cutting pick head, also have more pick box position, pick box and pick point are structure as a whole, the anti-wear performance of high-speed steel or hard alloy pick box owing to being provided with wear-resistant coating is significantly larger than the pick body head of tradition milling machine pick, and pick body head participates in milling hardly in such an embodiment, and therefore cutting pick head can be provided and the most effectively support by pick body, thus significantly increases the service life of milling machine pick.
When milling machine pick normally works, pick body can be with rotation in tool rest, owing to the pick box of pick body head and cutting pick head is positive water chestnut platform shape, pick and the rubbing action on road surface when therefore strengthening operation, be conducive to pick body rotation, it is to avoid cutting pick head and pick body head only produce abrasion in side so that cutting pick head and pick body head even wearing, thus efficiently solve the eccentric wear problem of milling machine pick, significantly increase the service life of milling machine pick.
Owing to this milling machine pick can effectively solve the pick body abrasion in work progress and the eccentric wear problem of milling machine pick, thus extend the service life of milling machine pick.So that milling machine pick bulk life time is improved so that the frequency changing milling machine pick in milling machine milling process is substantially reduced, thus improves milling efficiency.It is mainly applied on asphalt road plane milling machine.
Accompanying drawing explanation
Fig. 1 be the present invention partly cut open structural representation；
Fig. 2 is the assembling structural representation of cutting pick head, pick body and wear-resisting annulus；
Fig. 3 is the contour structures schematic diagram of pick body；
Fig. 4 is the contour structures schematic diagram of cutting pick head.
In figure: pick body 1, pick body head 11, terrace with edge 111, boss 112, big boss 12, cone tank 121, small boss 13, pick body rod portion 14, annular breach 141, wear-resisting annulus 2, bulge loop 21, cutting pick head 3, pick box (31), groove 311, pick point (32), wear-resistant coating 33.
Detailed description of the invention
With embodiment, the present invention is described in further details below in conjunction with the accompanying drawings.
Embodiment 1, refering to Fig. 1 to Fig. 4, the present invention it include cooperating pick body 1, wear-resisting annulus 2 and the cutting pick head 3 of suit, described cutting pick head 3 includes pick box 31 and the pick point 32 being mutually fixed into entirety, pick box 31 is frustum structure, and pick point 32 is pointed cone structure；It is provided with wear-resistant coating in pick point 32 and pick box 31 front end or the periphery of cutting pick head 3；Described pick body 1 includes pick body head 11 and the pick body rod portion 14 being mutually fixed into entirety；In pick body head 11 front end of pick body 1, boss 112 is set, the end that connects in cutting pick head 3 is provided with the groove 311 matched with the boss 112 on pick body head 11, boss 112 engagement sleeves of pick body head 11 is contained in the groove 311 of cutting pick head 3, and the pick body head 11 of pick body 1 is connected with the periphery smooth-going of the pick box 31 of cutting pick head 3；It is provided with cone tank 121 bottom pick body head 11 rear end, wear-resisting annulus 2 inner ring is provided with the bulge loop 21 matched with cone tank 121, the inner ring bulge loop cooperation of wear-resisting annulus 2 is packed in pick body head 11 rear end cone tank 121, pick body head 11 periphery is protruded in the periphery of wear-resisting annulus 2, constitutes ledge structure.The present invention is by using said structure, owing to the pick point of cutting pick head has certain cone angle, can effectively reduce the Milling Force of pick, and it is provided with arcwall face, therefore chip breaking that can be convenient and reliable, reduce the chip impact to pick box, thus be effectively reduced the abrasion of pick box, improve the service life of milling machine pick.
The present invention is compared with tradition milling machine pick, in addition to being provided with wear-resistant coating in cutting pick head, also have more pick box position, pick box and pick point are structure as a whole, the anti-wear performance of high-speed steel or hard alloy pick box owing to being provided with wear-resistant coating is significantly larger than the pick body head of tradition milling machine pick, and pick body head participates in milling hardly in such an embodiment, therefore cutting pick head can be provided and the most effectively support by pick body, thus significantly increases the service life of milling machine pick.
When milling machine pick normally works, pick body can be with rotation in tool rest, owing to the pick box of pick body head and cutting pick head is positive water chestnut platform shape, pick and the rubbing action on road surface when therefore strengthening operation, be conducive to pick body rotation, it is to avoid cutting pick head and pick body head only produce abrasion in side so that cutting pick head and pick body head even wearing, thus efficiently solve the eccentric wear problem of milling machine pick, significantly increase the service life of milling machine pick.
Raising due to milling machine pick bulk life time so that the frequency changing milling machine pick in milling machine milling process is substantially reduced, thus improves milling efficiency.
Embodiment 2, refering to Fig. 1 to Fig. 4, boss 112 of the present invention is polygon boss or cylindrical protrusions, and described groove 311 is cylindrical or polygonal grooves, described boss 112 and groove 311 preferred polygon boss and polygonal grooves with matching, to add the fastness of strong ties；Also can be provided with in pick body head 11 rear end consistent with pick box 31 tapering and connect end periphery terrace with edge of the same size 111, being provided with in pick body head 11 front end and be connected the boss 112 that end groove 311 matches with cutting pick head 3；Set gradually big boss 12 and the small boss 13 being mutually fixed into entirety at pick body head 11 rear portion of pick body 1, the outer circumference diameter of big boss 12 equals to or more than terrace with edge 111 periphery maximum gauge；Small boss 13 outer circumference diameter is less than big boss 12 external diameter, and close with the inner ring bulge loop diameter compatible of wear-resisting annulus 2, being provided with the cone tank 121 that the inner ring bulge loop with wear-resisting annulus 2 matches between big boss 12 and small boss 13, wear-resisting annulus 2 engagement sleeves is contained on small boss 13.Remaining is with embodiment 1.
Embodiment 3, refering to Fig. 1 to Fig. 4, bulge loop 21 of the present invention is protruding for taper or taper type, and protruding 21 highlight surface, wear-resisting annulus 2 one or both sides respectively.Remaining is with any of the above embodiment or the combination of 2 embodiments.
Embodiment 4, refering to Fig. 1 to Fig. 4, the present invention also can be provided with the groove 311 matched with the boss 112 on pick body head 11 on pick box 31.Owing to wear-resisting annulus is made up of high-speed steel, surface and bottom surface are tapered, cone tank on the surface of taper and the big boss of pick coordinates, the bottom surface of taper and the taper locating surface precise match of tool rest, when ensureing work, pick is in good Shaft alignment state in tool rest, reduces pick body rod portion and the abrasion in tool rest hole.Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 5, refering to Fig. 1 to Fig. 4, pick body 1 of the present invention may be used without soldering with the connected mode of cutting pick head 3 and is connected.Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 6, refering to Fig. 1 to Fig. 4, cutting pick head 3 of the present invention may be used without hard alloy or high-speed steel is made, and described wear-resisting annulus 2 uses high-speed steel to be made.Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 7, refering to Fig. 1 to Fig. 4, wear-resistant coating of the present invention is alternatively titanium nitride coating 33；The thickness of described titanium nitride coating 33 is 0.004～0.005mm.Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 8, refering to Fig. 1 to Fig. 4, terrace with edge 111 of the present invention is alternatively positive terrace with edge, the inclination angle of terrace with edge 111 is 78-82 °, the polygonal limit number of terrace with edge 111 bottom surface is 8 to 12, and terrace with edge 111 incline is provided with fillet, fillet a diameter of 2～4mm, having the boss 112 of a diameter of 10～18mm on terrace with edge 111, height is 5～10mm.Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 9, refering to Fig. 1 to Fig. 4, pick body rod portion 14 of the present invention is alternatively cylinder, and is provided with annular breach 141 at tail end, and the degree of depth of annular breach 141 is 3～3.5mm.Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 10, refering to Fig. 1 to Fig. 4, pick box 31 of the present invention is alternatively positive prismatic table shape, and the inclination angle of terrace with edge is 78-82 °, and the polygonal limit number of terrace with edge bottom surface is 8 to 12, and terrace with edge incline is provided with fillet, fillet a diameter of 2～5mm；Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 11, refering to Fig. 1 to Fig. 4, the crown circular diameter of pick point 32 of the present invention is 2～5mm, and crown cone angle is 40～70 °, a length of 15mm of described pick point.Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 12, refering to Fig. 1 to Fig. 4, a length of the 15～20mm of pick box 31 of the present invention；A diameter of 43mm of wear-resisting annulus 2, thickness is 4mm；Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 13, refering to Fig. 1 to Fig. 4, the diameter of big boss 12 of the present invention and small boss 13 is respectively as 34mm and 21mm.Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 14, refering to Fig. 1, Fig. 2, the surface of the wear-resisting annulus 2 of the present invention and bottom surface also can be provided with bulge loop 21, and described bulge loop 21 is taper or tapered protrusion, and a diameter of 43mm of wear-resisting annulus 2, thickness is 4mm.Remaining is with embodiment 1.
Embodiment 15, refering to Fig. 1, Fig. 2 and Fig. 4, cutting pick head 3 of the present invention has titanium nitride coating 33 by PVD method deposition.Remaining is with any of the above embodiment or the combination of 2 above example.
Embodiment 16, refering to Fig. 1, Fig. 2 and Fig. 4, the thickness of titanium nitride coating 33 of the present invention is 0.004～0.005mm.Remaining is with any of the above embodiment or the combination of 2 above example.
Claims (10)
1. a milling machine pick, it is characterized in that: it includes pick body (1), wear-resisting annulus (2) and the cutting pick head (3) being set with that cooperate, described cutting pick head (3) includes pick box (31) and pick point (32) being mutually fixed into entirety, pick box (31) is frustum structure, and pick point (32) is pointed cone structure；It is provided with wear-resistant coating in pick point (32) and pick box (31) front end or the periphery of cutting pick head (3)；Described pick body (1) includes pick body head (11) and the pick body rod portion (14) being mutually fixed into entirety；In pick body head (11) front end of pick body (1), boss (112) is set, connection end in cutting pick head (3) is provided with the groove (311) matched with the boss (112) on pick body head (11), boss (112) engagement sleeves of pick body head (11) is contained in the groove (311) of cutting pick head (3), and pick body head (11) of pick body (1) is connected with the periphery smooth-going of the pick box (31) of cutting pick head (3)；It is provided with cone tank (121) bottom pick body head (11) rear end, wear-resisting annulus (2) inner ring is provided with the bulge loop (21) matched with cone tank (121), the inner ring bulge loop cooperation of wear-resisting annulus (2) is packed in pick body head (11) rear end cone tank (121), pick body head (11) periphery is protruded in the periphery of wear-resisting annulus (2), constitutes ledge structure.
Milling machine pick the most according to claim 1, is characterized in that: described boss (112) is polygon boss or cylindrical protrusions, and described groove (311) is cylindrical or polygonal grooves；It is provided with in pick body head (11) rear end consistent with pick box (31) tapering and connects end periphery terrace with edge of the same size (111), being provided with in pick body head (11) front end and be connected the boss (112) that end groove (311) matches with cutting pick head (3)；Set gradually big boss (12) and the small boss (13) being mutually fixed into entirety at pick body head (11) rear portion of pick body (1), the outer circumference diameter of big boss (12) equals to or more than terrace with edge (111) periphery maximum gauge；Small boss (13) outer circumference diameter is less than big boss (12) external diameter, and close with the inner ring bulge loop diameter compatible of wear-resisting annulus (2), being provided with the cone tank (121) that the inner ring bulge loop with wear-resisting annulus (2) matches between big boss (12) and small boss (13), wear-resisting annulus (2) engagement sleeves is contained on small boss (13).
Milling machine pick the most according to claim 1, is characterized in that: described bulge loop (21) is taper or taper type projection, protruding (21) prominent wear-resisting annulus (2) surface, one or both sides.
Milling machine pick the most according to claim 1 and 2, is characterized in that: be provided with the groove (311) matched with the boss (112) on pick body head (11) on pick box (31).
Milling machine pick the most according to claim 1, is characterized in that: described pick body (1) uses soldering to be connected with the connected mode of cutting pick head (3).
Milling machine pick the most according to claim 1, is characterized in that: described cutting pick head (3) uses hard alloy or high-speed steel to be made, and described wear-resisting annulus (2) uses high-speed steel to be made.
Milling machine pick the most according to claim 1, is characterized in that: described wear-resistant coating is titanium nitride coating (33)；The thickness of described titanium nitride coating (33) is 0.004～0.005mm.
Milling machine pick the most according to claim 2, it is characterized in that: described terrace with edge (111) is positive terrace with edge, the inclination angle of terrace with edge (111) is 78-82 °, the polygonal limit number of terrace with edge (111) bottom surface is 8 to 12, terrace with edge (111) incline is provided with fillet, fillet a diameter of 2～4mm, terrace with edge (111) has the boss (112) of a diameter of 10～18mm, and height is 5～10mm.
Milling machine pick the most according to claim 1, is characterized in that: described pick body rod portion (14) is cylinder, and is provided with annular breach (141) at tail end, and the degree of depth of annular breach (141) is 3～3.5mm.
Milling machine pick the most according to claim 1, is characterized in that: described pick box (31) is positive prismatic table shape, and the inclination angle of terrace with edge is 78-82 °, and the polygonal limit number of terrace with edge bottom surface is 8 to 12, and terrace with edge incline is provided with fillet, fillet a diameter of 2～5mm；The crown circular diameter of described pick point (32) is 2～5mm, and crown cone angle is 40～70 °, a length of 15mm of described pick point, a length of the 15～20mm of described pick box (31)；A diameter of 43mm of wear-resisting annulus (2), thickness is 4mm；The diameter of described big boss (12) and small boss (13) is respectively as 34mm and 21mm.
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| CN201610315293.1A CN105887638A (en) | 2016-05-14 | 2016-05-14 | Milling machine cutting pick |
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| CN201610315293.1A CN105887638A (en) | 2016-05-14 | 2016-05-14 | Milling machine cutting pick |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235220A (en) * | 2018-09-18 | 2019-01-18 | 徐州锐马重工机械有限公司 | A kind of high efficiency cement pavement regenerating device and its working method |
| CN114892482A (en) * | 2022-07-13 | 2022-08-12 | 徐州徐工筑路机械有限公司 | Cold milling type milling machine for cleaning road surface |
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| CN109235220A (en) * | 2018-09-18 | 2019-01-18 | 徐州锐马重工机械有限公司 | A kind of high efficiency cement pavement regenerating device and its working method |
| CN114892482A (en) * | 2022-07-13 | 2022-08-12 | 徐州徐工筑路机械有限公司 | Cold milling type milling machine for cleaning road surface |
| CN114892482B (en) * | 2022-07-13 | 2022-09-27 | 徐州徐工筑路机械有限公司 | Cold milling type milling machine for cleaning road surface |
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