CN108149556A - A kind of cutter for road milling machine - Google Patents
A kind of cutter for road milling machine Download PDFInfo
- Publication number
- CN108149556A CN108149556A CN201711261265.7A CN201711261265A CN108149556A CN 108149556 A CN108149556 A CN 108149556A CN 201711261265 A CN201711261265 A CN 201711261265A CN 108149556 A CN108149556 A CN 108149556A
- Authority
- CN
- China
- Prior art keywords
- knife
- cutter
- point
- milling machine
- road milling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- E01C23/0885—Rotary tools, e.g. milling drums with vertical or steeply inclined rotary axis
Abstract
A kind of cutter of milling-planing machine belongs to milling machine part technical field, relates generally to a kind of cutter for road milling machine；The present invention is limited to conventional shape and structure to solve cutter of the prior art, and point of a knife easily generates non-uniform, abnormal abrasion during work, and service life is short, wear-resistant material utilization rate is low, ineffective problem；The present invention includes head, and head includes point of a knife, and point of a knife is mounted on receiving portion top, and point of a knife is included substantially in the first coniform work department, and the outer wall outwardly convex of the first work department forms the protrusion of several uniform annular arrays, and protrusion forms the second work department；The present invention realizes the longer service life of cutter, hence it is evident that reduces operating expenses.
Description
Technical field
A kind of cutter of milling-planing machine belongs to milling machine part technical field, relates generally to a kind of knife for road milling machine
Tool.
Background technology
Cutter is usually used in the machinery of ground maintenance, such as the cutting of road milling machine, pavement recycling machine or similar machine
On roller；The point of a knife of cutter is its direct working portion, with the pavement material that cuts off is needed to be in direct contact, so cutter structure for
The cutting effect of cutter has profound influence, however, cutter of the prior art is limited to conventional shape and structure, point of a knife during work
Non-uniform, abnormal abrasion is easily generated, service life is short, wear-resistant material utilization rate is low, ineffective problem.
Invention content
To solve the above-mentioned problems, the invention discloses a kind of cutter for road milling machine, simple in structure, work effects
Rate is high, operating expenses is low.
The object of the present invention is achieved like this：
A kind of cutter for road milling machine, including head, head includes point of a knife, and point of a knife is mounted on receiving portion top,
Point of a knife is included substantially in the first coniform work department, and the outer wall outwardly convex of the first work department forms several uniform annular arrays
The protrusion of arrangement, protrusion form the second work department, and the weight of the second work department accounts for 10%-the 20% of entire point of a knife weight.
Further, it is described protrusion include crowning with for crowning and the first work department outer wall are connected first
Partial duty face and the second local working face.
Further, the crowning has rise portion, maintaining part and the decline extended along the first work department generatrix direction
Portion.
The crowning is made of for a surfaces of revolution structure or several planes arranged at an angle or surface intersection.
Further, the maximum distance between First partial working face and the second local working face is less than protrusion to axis
Projected length on line direction is less than the length that protrusion extends along the second work department busbar, 5mm<D<10mm, 10mm<B<20mm,
15mm<C<25mm。
Further, first work department includes top surface and working face, and the top surface is the umbrella surfaces of revolution.
Further, the working face is that the curve being recessed to point of a knife central axes rotates the rotation to be formed around point of a knife central axes
Face structure.
Further, the cross section that top surface and working face connect is the first cross section, and any place cross section is on working face
Second cross section, the raised line composition imaginary section towards its raised outermost points after the projection on the second cross section, first
Diameter of section is less than second cross-sectional diameter and is less than or equal to imaginary section diameter.
Further, the protrusion has the maximum gauge h relative to working face, and maximum gauge h is the imaginary section
20%-the 30% of diameter
Further, the top surface angular range of the first work department is between 60 ° -100 °.
Further, point of a knife lower end is gap-matched mode intercalation in receiving portion, and uses brazing process will
The two connection is fixed, and the shape size of the point of a knife lower end is corresponding with the matching of the shape size of receiving portion.
Further, the cutter has the shank of fixed function, and point of a knife is made of superhard alloy material, under the point of a knife
End is arranged with several protrusions being evenly arranged around central axis.
Compared with prior art, the present invention having the advantages that, several flabellum shapes protrusion in the present invention is all wrapped
Several partial duty faces are included, and thus form the flabellum shape protrusion of same modality.The purpose and foundation designed in this way is to increase
Tool nose and the contact area on cutting ground, also, the waste material residue after being cut persistently connects with several flabellum shape protrusions
During touching, the form of similar fluid motion is caused, and generates additional driving frictional force, cutter is pushed to be fixed in cutter with this
Continuous rotary motion in seat, in this way, effectively being solved in the problem of conventional knife course of work.
Description of the drawings
Fig. 1 is the overall structure diagram of cutter of the present invention；
Fig. 2 is the structural front view of point of a knife of the present invention；
Fig. 3 is the structure left view of point of a knife of the present invention；
Fig. 4 is the structure top view of point of a knife of the present invention；
Fig. 5 is the structure bottom view of point of a knife of the present invention；
Fig. 6 is corner wear schematic diagram of the present invention；
Fig. 7 is cutter of the present invention and tool fixing seat assembly work schematic diagram；
Fig. 8 is point of a knife structure diagram of the prior art；
Fig. 9 is corner wear schematic diagram of the prior art；
Figure 10 is prior art cutter and tool fixing seat assembly work schematic diagram；
Specific embodiment
The specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
A kind of cutter for road milling machine of the present embodiment, as depicted in figs. 1 and 2, including head 1, head includes
Point of a knife 1.1, point of a knife 1.1 are mounted on 1.2 top of receiving portion, and point of a knife 1.1 is included substantially in the first coniform work department 2, and first
The outer wall outwardly convex of work department 2 forms the protrusion 4.1 of several uniform annular arrays, and protrusion 4.1 forms the second work department
4, the weight of the second work department accounts for 10%-the 20% of entire point of a knife weight.
The protrusion includes crowning 7 and the First partial work for crowning 7 to be connected with 2 outer wall of the first work department
Make the local working face 6 in face 5 and second.
The crowning 7 has rise portion, maintaining part and the falling portion extended along 4 generatrix direction of the second work department.
The crowning 7 is for a surfaces of revolution structure or by several planes arranged at an angle or surface intersection structure
Into.
The length that the point of a knife 1.1 is projected on axis L wherein is A, and protrusion 4.1 extends along 2 busbar of the first work department
Length is C, and raised 4.1 projected length on the L directions of central axes is B, the local working face 6 of First partial working face 5 and second
Between maximum distance for D, and D ＜ B ＜ C, each length range is in the present embodiment：5mm<D<10mm, 10mm<B<20mm,
15mm<C<25mm。
First work department 2 includes top surface 2.1 and working face 3, and the top surface 2.1 is the umbrella surfaces of revolution.
The working face 3 is to rotate the surfaces of revolution structure to be formed around point of a knife central axes to the curve that point of a knife central axes are recessed.
The cross section that top surface 2.1 and working face 3 connect is the first cross section, and any place cross section is the second cross section on working face 3, convex
It plays the line of its raised outermost points after the projection on the second cross section of face 7 and forms imaginary section, first cross-sectional diameter a
It is less than or equal to imaginary section diameter c less than second cross-sectional diameter b, described raised 4.1 have the maximum thickness relative to working face 3
H is spent, maximum gauge h is 20%-the 30% of the imaginary section diameter, and the range of each diameter of the present embodiment is specially：10mm
<a<20mm；15mm<b<25mm；20mm<c<30mm.In the case where not increasing or increasing by 1.1 material of point of a knife on a small quantity, by point of a knife
Carbide redistribution on 1.1, and optimize its operation shape, improve its stock utilization, performance is further excellent
Change, penetration capacity improves, and reduces cutting resistance, it is ensured that the high speed of travel and high efficiency of machine.
The 2.1 angle α range of top surface of first work department 2 is between 60 ° -100 °.
1.1 lower end 14 of point of a knife is gap-matched mode intercalation in receiving portion 1.2, and uses brazing process by two
Person, which connects, to fix.
The cutter has the shank 9 of fixed function, and point of a knife 1.1 is made of superhard alloy material.
The end portion 14 of the point of a knife 1.1 is equipped with several protrusions 13 being evenly arranged around central axis L, tool assembly
With stress during work evenly, it described raised 13 is used to, when point of a knife 1.1 and cutter receiving portion 1.2 are assembled, make axis direction
Location purposes, specifically protrusion 13 has certain height H2, certain interval can be paved between two fitting surfaces, and same
During Shi Caiyong soldering processes so that the solder of half Rong shape can be sufficient filling with the gap of cutter receiving portion 1.2 and point of a knife 1.1, this
Sample is when cutter works, even if greatly being impacted, also can guarantee that point of a knife 1.1 is firmly welded in cutter receiving portion 1.2,
It does not have and any comes off and loosen trend and phenomenon.
The point of a knife 1.1 is made of superhard alloy material, such as carbide, diamond, polycrystalline diamond or other and Buddha's warrior attendant
Stone is similar to the material of hardness.Carbide in point of a knife is the alloy that a kind of tungsten carbide and cobalt are formed, and tungsten carbide therein ensures foot
Enough hardness and wearability, and tungsten carbide particle is then bonded together by the cobalt of opposite " softer ", even if therefore ensuring that in highest
Under impact load, it may have ideally flexural strength.
As shown in fig. 7, in actual cut Ground Operation, tool shank 9 is mounted in tool fixing seat endoporus 11.1, two
Person keeps suitable elasticity, and the first work department 2 of tool nose is directly contacted with the second work department 4 with being cut ground 17,
And be all cut into the certain depth H on ground, with the continuous contact on ground 17 during, due to the effect of frictional force F, knife
Tool 8 rotates freely in tool fixing seat endoporus 11.1 around central axis L.This is in being surrounded for the point of a knife 1.1 of cutter 8
Mandrel line L is uniformly worn, and is conducive to extend the service life of cutter 8, and the point of a knife that the degree of wear is consistent, is also made cutting shape
Into the 17 lines depth of ground it is identical, interval is consistent, advantageous to subsequent working procedure in this way, makes final new to be laid with road surface more
Add smooth.
As shown in Figure 10, but conventional knife 12 is in actual cut Ground Operation, it is assumed that and depth H is equal to depth H 1, and
And along the direction of power f1, often because small with contact area of ground, usual only top surface umbrella working face 15 and part-conical
Shape working face 16 is contacted with ground 18 and waste material caused by cutting, enters the shank of tool along with some waste cut materials residue is understood
Portion 19 is in the gap 10.1 of tool fixing seat endoporus 20.1, forming certain clamping stagnation interfering edge, getting off in this way, total frictional force
The effect that cutter 12 can be driven to be rotated freely in tool fixing seat 20 is not achieved in F1.Namely f=f1, but F>F1.Therefore,
The point of a knife 16.1 of cutter 12 often generates non-uniform, abnormal abrasion, it has to replace cutter in advance, shorten cutter
Service life affects construction efficiency and increases operating expenses, meanwhile and the waste to point of a knife material.
Therefore, as shown in Figure 2, Figure 3 and Figure 4, several protrusions 4.1 in the present invention, all including several partial duty faces
5th, 6,7, and thus form the protrusion of same modality.The purpose and foundation designed in this way is to increase tool nose 1.1 and cutting
The contact area on ground 17, also, the waste material residue after being cut with during raised 4.1 continuous contacts of several flabellum shapes,
The form of similar fluid motion is caused, and generates additional driving frictional force F, pushes cutter continuous in tool fixing seat with this
Rotary motion, in this way, effectively being solved in the problem of 12 course of work of conventional knife.
It as shown in Fig. 2,6,8,9, is found with reference to long-term actual use, it is assumed that point of a knife 1.1 of the present invention and conventional point of a knife 16.1
Length A=A1, comparison diagram 6 and Fig. 9 are it can be found that point of a knife residue length after use in 100 hours of continuously constructing, this hair
Bright point of a knife 1.1 is significantly less than conventional point of a knife 16.1, i.e. S<S1；The size range of S is in 0-2mm, and the size range of S1 is in 5-10mm.
The length A of point of a knife 1.1 can be made full use of by showing the cutter 8 of the present invention, compared to conventional point of a knife 16.1, improve material use
Rate.Also, between the central axis L before the central axis M of the working face 2.1 of point of a knife 1.1 of the present invention after use and use
Distance is d；Between central axis L1 before the central axis M1 of the working face 15 of conventional point of a knife 16.1 after use and use
Distance is d1, it can clearly be seen that d<The size range of d1, d are in 0-2mm, and the size range of d1 is in 2-8mm.Show conventional point of a knife
16.1 generations are uneven, and abnormal abrasion shortens cutting-tool's used life, affects construction efficiency and increases construction cost
With, meanwhile and the waste to point of a knife material.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will illustrate
Book is as an entirety, and the technical solutions in each embodiment can also be properly combined, and forming those skilled in the art can manage
The other embodiment of solution.
Claims (10)
1. a kind of cutter for road milling machine, including head (1), head includes point of a knife (1.1), and point of a knife (1.1) is mounted on
Receiving portion (1.2) top, it is characterised in that：Including being substantially in coniform the first work department (2), first works point of a knife (1.1)
The outer wall outwardly convex in portion (2) forms the protrusion (4.1) of several uniform annular arrays, and raised (4.1) form the second work
Portion (4).
2. a kind of cutter for road milling machine according to claim 1, it is characterised in that：The protrusion includes crowning
(7) with the First partial working face (5) for crowning (7) to be connected with the first work department (2) outer wall and the second local work
Make face (6).
3. a kind of cutter for road milling machine according to claim 2, it is characterised in that：The crowning (7) has
Rise portion, maintaining part and the falling portion extended along the first work department (2) generatrix direction.
4. a kind of cutter for road milling machine according to claim 2, it is characterised in that：The point of a knife (1.1) is at it
The length projected on the L of central axes is A, and raised (4.1) are C along the length that the first work department (2) busbar extend, protrusion (4.1) to
Projected length on the L directions of central axes is B, the maximum distance between First partial working face (5) and the second part working face (6)
For D, and D ＜ B ＜ C.
5. a kind of cutter for road milling machine according to claim 1, it is characterised in that：First work department (2)
Including top surface (2.1) and working face (3), the top surface (2.1) is the umbrella surfaces of revolution.
6. a kind of cutter for road milling machine according to claim 5, it is characterised in that：The working face (3) be to
The curve of point of a knife central axes recess rotates the surfaces of revolution structure to be formed around point of a knife central axes.
7. a kind of cutter for road milling machine according to claim 6, it is characterised in that：Top surface (2.1) and working face
(3) cross section to connect is the first cross section, and any place cross section is the second cross section on working face (3), and crowning (7) is to the
The line of its raised outermost points forms imaginary section after projection on two cross sections, and it is transversal that first cross-sectional diameter is less than second
Face diameter is less than or equal to imaginary section diameter.
8. a kind of cutter for road milling machine according to claim 7, it is characterised in that：Protrusion (4.1) tool
There is 20% -30% that the maximum gauge h relative to working face (3), maximum gauge h are the imaginary section diameters.
9. a kind of cutter for road milling machine according to claim 1, it is characterised in that：The top of first work department (2)
Face (2.1) angle α range is between 60 ° -100 °.
10. a kind of cutter for road milling machine according to claim 1, it is characterised in that：Point of a knife (1.1) lower end
(14) mode intercalation is gap-matched in receiving portion (1.2), and the two is connected using brazing process and is fixed；The knife
Shank (9) with fixed function, point of a knife (1.1) are made of superhard alloy material, the end portion (14) of the point of a knife (1.1)
Equipped with several protrusions (13) being evenly arranged around central axis L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261265.7A CN108149556B (en) | 2017-12-04 | 2017-12-04 | Cutter for road milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261265.7A CN108149556B (en) | 2017-12-04 | 2017-12-04 | Cutter for road milling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108149556A true CN108149556A (en) | 2018-06-12 |
| CN108149556B CN108149556B (en) | 2022-07-01 |
Family
ID=62466466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711261265.7A Active CN108149556B (en) | 2017-12-04 | 2017-12-04 | Cutter for road milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108149556B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150054332A1 (en) * | 2013-08-26 | 2015-02-26 | Winchester E. Latham | Tooth and retainer |
| CN205347943U (en) * | 2015-12-24 | 2016-06-29 | 富耐克超硬材料股份有限公司 | Pavement milling machine tool bit with protection tooth |
| CN206070326U (en) * | 2016-07-29 | 2017-04-05 | 浙江华莎驰机械有限公司 | A kind of milling machine or paving machine cutter head |
| CN106638248A (en) * | 2016-12-31 | 2017-05-10 | 马鞍山奥天机械科技有限公司 | Pavement milling machine drill bit with inset ceramic rods |
| CN106978776A (en) * | 2017-04-13 | 2017-07-25 | 苏州凯通工程机械有限公司 | A kind of shank tools for road milling machine |
| CN207700015U (en) * | 2017-12-04 | 2018-08-07 | 苏州五元素机械制造有限公司 | A kind of cutter for road milling machine |
-
2017
- 2017-12-04 CN CN201711261265.7A patent/CN108149556B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150054332A1 (en) * | 2013-08-26 | 2015-02-26 | Winchester E. Latham | Tooth and retainer |
| CN205347943U (en) * | 2015-12-24 | 2016-06-29 | 富耐克超硬材料股份有限公司 | Pavement milling machine tool bit with protection tooth |
| CN206070326U (en) * | 2016-07-29 | 2017-04-05 | 浙江华莎驰机械有限公司 | A kind of milling machine or paving machine cutter head |
| CN106638248A (en) * | 2016-12-31 | 2017-05-10 | 马鞍山奥天机械科技有限公司 | Pavement milling machine drill bit with inset ceramic rods |
| CN106978776A (en) * | 2017-04-13 | 2017-07-25 | 苏州凯通工程机械有限公司 | A kind of shank tools for road milling machine |
| CN207700015U (en) * | 2017-12-04 | 2018-08-07 | 苏州五元素机械制造有限公司 | A kind of cutter for road milling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108149556B (en) | 2022-07-01 |
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Address after: 226007 plant 4, HUanpu modern industrial park, No. 3, Qilianshan Road, suxitong science and Technology Industrial Park, Nantong City, Jiangsu Province Applicant after: Jiangsu Wuyuan Machinery Manufacturing Co.,Ltd. Address before: 215400 No. 4 Zhengzhong Road, Ludu Town, Taicang City, Suzhou City, Jiangsu Province Applicant before: SUZHOU WUYUANSU MACHINERY MANUFACTURING Co.,Ltd. |
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