CN207793825U - A kind of band handle chisel for road milling machine - Google Patents
A kind of band handle chisel for road milling machine Download PDFInfo
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- CN207793825U CN207793825U CN201721663544.1U CN201721663544U CN207793825U CN 207793825 U CN207793825 U CN 207793825U CN 201721663544 U CN201721663544 U CN 201721663544U CN 207793825 U CN207793825 U CN 207793825U
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- cutter hub
- milling machine
- interconnecting piece
- road milling
- band handle
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Abstract
A kind of band handle chisel for road milling machine belongs to milling machine part field, relates generally to a kind of milling machine chisel；The utility model is limited to conventional shape and structure to solve cutter in the prior art, and point of a knife easy tos produce non-uniform, abnormal abrasion when work, and service life is short, wear-resistant material utilization rate is low, ineffective problem；The utility model includes head, and head is mounted on cutter hub top, and the circumferential side wall of the cutter hub protrudes outward the protrusion to form several uniform annular arrays；The utility model realizes the longer service life of cutter, hence it is evident that reduces operating expenses.
Description
Technical field
A kind of band handle chisel for road milling machine belongs to milling machine part technical field, relates generally to a kind of milling machine
Chisel.
Background technology
It is usually used in the machinery of ground maintenance with handle chisel, such as road milling machine, pavement recycling machine or similar machine
It cuts on roller；The point of a knife of cutter is its direct working portion, is in direct contact with the pavement material cut off is needed, so cutter structure
There is profound influence for the cutting effect of cutter, however, cutter in the prior art is limited to conventional shape and structure, when work
Point of a knife easy tos produce non-uniform, abnormal abrasion, and service life is short, wear-resistant material utilization rate is low, ineffective to ask
Topic.
Invention content
To solve the above-mentioned problems, the invention discloses a kind of band handle chisel for road milling machine, simple in structure, works
Make that efficient, operating expenses is low.
The object of the present invention is achieved like this：
A kind of band handle chisel for road milling machine, including head, head are mounted on cutter hub top, and cutter hub is inserted in handle of a knife
Top, the circumferential side wall of the cutter hub protrude outward the protrusion to form several uniform annular arrays, and raised total weight accounts for entirely
The 1%-5% of cutter hub weight.
The protrusion side wall includes the first working face and the second working face, using the first working face and the second working face in work
With the waste material residue continuous contact on bottom surface during work, the form of similar movement is formed, additional frictional force is generated, is pushed away with this
Cutter constantly moves in fixed seat, avoids the irregular wear of cutter.
There is the protrusion length C that extends along cutter hub side wall, the length of the raised projection on cutter hub central axes to be
B, raised maximum width be A, between relationship be A<B<C.Size range is respectively：5mm<A<10mm； 10mm<B<
15mm；15mm<C<20mm.
The protrusion is formed around fixed axis by a curved surface or has several intersections to constitute.
The cutter hub includes transition part, and transition part side extends to form upper connection along cutter hub central axis to cephalad direction
The other side in portion, transition part extends to form lower interconnecting piece along the central axis of cutter hub to handle of a knife direction, and the outer diameter of upper interconnecting piece is small
In the outer diameter of lower interconnecting piece.
The side of the transition part rotates the surfaces of revolution formed by the first curve around the central axis of cutter hub, upper interconnecting piece
Side rotates the surfaces of revolution formed by the second curve around the central axis of cutter hub, and the side of lower interconnecting piece is by third curve around cutter hub
Central axis rotate the surfaces of revolution to be formed, the protrusion is located between upper connection and lower interconnecting piece.
The upper surface diameter of upper interconnecting piece is less than upper interconnecting piece and the cross-sectional diameter of transition part junction is less than lower connection
The cross-sectional diameter in portion and transition part junction；The protrusion has the maximum gauge of opposite cutter hub side wall, the maximum gauge
For the 20%-30% of lower interconnecting piece and the cross-sectional diameter numerical value of transition part junction, the advantage designed in this way is, is not increasing
In the case of adding or increasing cutter hub material on a small quantity, cutter hub material is redistributed, forms advantageous shape, and optimizes it and operates shape
State makes its stock utilization improve, and performance advanced optimizes, and penetration capacity improves, and reduces cutting resistance, it is ensured that machine
The high speed of travel and high efficiency.
The cutter hub top is equipped with receiving portion, and head includes top surface and work department, and work department is gap-matched mode and inlays
The two is connected and fixed in receiving portion, and using brazing process.
The top surface is umbrella working face, and the side of work department is frustum of a cone side, is cylinder between top surface and work department
Shape working face.
The apex angle range of top surface is in 60 ° -100 °.
The head is made of superhard alloy material, such as carbide, diamond, polycrystalline diamond or other and diamond class
Like the material of hardness.Carbide in point of a knife is a kind of alloy of tungsten carbide and cobalt composition, and tungsten carbide therein ensures enough
Hardness and wearability, and tungsten carbide particle is then bonded together by the cobalt of opposite " softer ", is therefore ensured that and is impacted even if in highest
Under load, it may have ideally flexural strength.
Compared with prior art, the present invention have the advantages that, several protrusions in the present invention, including the first work
Face, the second working face, the protrusion on cutter hub are water-drop-shaped.The purpose and foundation designed in this way is to reduce cutter hub and is milled object
Contact resistance between matter, and it is possible to effectively reinforce the intensity of cutter hub cutting parts, waste material residue after being cut with it is several
During raised continuous contact, the form of similar fluid motion is caused, and generates additional driving frictional force, band handle is pushed with this
Chisel continuous rotary motion in tool fixing seat, in this way, effective the conventional knife course of work the problem of
It solves.
Description of the drawings
Fig. 1 is the overall structure diagram of the invention with handle chisel；
Fig. 2 is the structural front view of cutter hub of the present invention；
Fig. 3 is cutter hub of the present invention and the structural schematic diagram of protrusion；
Fig. 4 is the structure top view of cutter hub of the present invention；
Fig. 5 is present invention band handle chisel and tool fixing seat assembly work schematic diagram；
Fig. 6 is that present invention band handle chisel wears schematic diagram；
Fig. 7 is cutter structure schematic diagram in the prior art；
Fig. 8 is prior art cutter and tool fixing seat assembly work schematic diagram；
Fig. 9 is tool wear schematic diagram in the prior art；
Specific implementation mode
The specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
A kind of band handle chisel for road milling machine of the present embodiment, as shown in Figure 1, including head 2, head 2 is installed
On 3 top of cutter hub, cutter hub 3 is mounted on the top of handle of a knife 4, and the circumferential side wall of the cutter hub 3 protrudes outward to form several uniform rings
The protrusion 3.1 in inversion water-drop-shaped of shape array, raised total weight account for the 1%-5% of entire cutter hub weight.Head 2 includes top
Face 2.1 and work department 2.3,3 top of the cutter hub are equipped with receiving portion 3.7, and work department 2.3 is gap-matched mode and is embedded in appearance
It receives in portion 3.7, and is connected and fixed the two using brazing process.
The top surface 2.1 is umbrella working face, and the side of work department 2.3 is frustum of a cone side, top surface 2.1 and work department
It is cylindrical work face 2.2 between 2.3, the apex angle α range of top surface 2.1 is in 60 ° -100 °.
As shown in figure 5, in actual cut Ground Operation, tool shank 4 is mounted in tool fixing seat 5, and the two is kept
Suitable elasticity, 1 head umbrella working face 2.1 of band handle chisel, cylindrical work face 2.2, conical working face 2.3 directly with
It it is cut the contact of ground 6, and along the direction of power f, is all cut into the certain depth H on ground, persistently connect with ground 6
During touching, due to the effect of frictional force F, band handle chisel 1 rotates freely in tool fixing seat endoporus 5.1 around central axis L.
This is to be conducive to extend band in order to which the head umbrella working face 2.1 with handle chisel 1 can uniformly be worn around central axis L
The service life of handle chisel 1, and the head 2 that the degree of wear is consistent also make the ground lines depth that cutting is formed identical, interval
Unanimously, advantageous to subsequent working procedure in this way, keep final new laying road surface more smooth.
As shown in figure 8, still conventional knife 10 is in actual cut Ground Operation, it is assumed that depth H is equal to depth H 1, and
It is often because small with 7 contact area of ground along the direction of power f1, usually only top surface umbrella working face 20.1 and part-conical
Shape working face 20.3 is contacted with ground 7 and waste material caused by cutting, enters cutter along with some waste cut materials residue is understood
Shank 40 forms certain clamping stagnation interfering edge, gets off in this way, total frictional force F1 reaches with 5.1 gap of tool fixing seat endoporus
Less than the effect that cutter 10 can be driven to be rotated freely in tool fixing seat endoporus 5.1.Therefore, the point of a knife 10.1 of cutter 10
Often rotate unsmooth, non-uniform, the abnormal abrasion of generation, it has to replace cutter in advance, shorten cutter uses the longevity
Life, affects construction efficiency and increases operating expenses, meanwhile, and the waste to point of a knife material.
As shown in Fig. 6,9, found in conjunction with long-term actual use, it is assumed that the present invention is with handle chisel head 2 and conventional knife head
The length A=A1 in portion 20, comparison diagram 6 and Fig. 9 are it can be found that the point of a knife residue after 100 hour uses of continuously constructing is grown
Degree, the present invention are significantly less than conventional knife head 20, i.e. S with handle chisel head 2<S1；The size range of S in 5-10mm, S1's
Size range is in 15-20mm.Show the length A that can make full use of head 2 with handle chisel 1 of the present invention, compares conventional knife
10, improve stock utilization.Also, central axis M and the use of working face 2.1 of the present invention with handle chisel 1 after use
The distance between preceding central axis L is d；The central axis M1 of the working face 10.1 of conventional knife 10 after use and use
The distance between preceding central axis L1 is d1, it can clearly be seen that d<The size range of d1, d are in 0-2mm, the size range of d1
In 2-8mm.It is uneven to show that conventional knife head 20 generates, abnormal abrasion shortens cutting-tool's used life, affects
Construction efficiency and operating expenses is increased, meanwhile, and the waste to point of a knife material.
Therefore, as shown in Fig. 2, in the present invention on cutter hub 3 circumferentially several raised 3.1, including the first working face
3.2, the second working face 3.3, the protrusion 3.1 on the cutter hub 3 of this implementation is water-drop-shaped, and raised 3.1 side wall includes the first work
Make face 3.2 and the second working face 3.3, the purpose designed in this way and foundation are connecing between reducing cutter hub 3 and being milled substance
Resistance is touched, and it is possible to effectively reinforce the intensity of cutter hub cutting parts, the waste material residue after being cut persistently connects with several protrusions
During touching, the form of similar fluid motion is caused, and generates additional driving frictional force, pushes band handle chisel 1 in knife with this
Has continuous rotary motion in fixed seat endoporus 5.1, in this way, effectively being solved in the problem of conventional knife course of work
Certainly.
Described raised 3.1 have the length C extended along cutter hub side wall, projection of the protrusion 3.1 on cutter hub central axes
Length is B, protrusion 3.1 maximum width be A, between relationship be A<B<C.
The specific size range of the present embodiment is respectively：5mm<A<10mm；10mm<B<15mm；15mm<C<20mm.
The protrusion is formed around fixed axis by a curved surface or has several intersections to constitute.
The cutter hub 3 includes transition part 3.4, and 3.4 side of transition part extends shape along cutter hub central axis to 2 direction of head
At upper interconnecting piece 3.5, the other side of transition part 3.4 extends to form lower interconnecting piece along the central axis of cutter hub 3 to 4 direction of handle of a knife
3.6, the outer diameter of upper interconnecting piece 3.5 is less than the outer diameter of lower interconnecting piece 3.6.
The side of the transition part 3.4 rotates the surfaces of revolution formed, upper connection by the first curve around the central axis of cutter hub 3
The side in portion 3.5 rotates the surfaces of revolution formed by the second curve around the central axis of cutter hub 3, and the side of lower interconnecting piece 3.6 is by
Three curves rotate the surfaces of revolution to be formed around the central axis of cutter hub 3, described raised 3.1 be located at upper connection 3.5 and lower interconnecting piece it
Between, the protrusion 3.1 of the present embodiment is between upper interconnecting piece and transition part.
As shown in Figure 2 and Figure 4, cutter hub 3 is column structure.
The upper surface diameter a of upper interconnecting piece 3.5 is less than the cross-sectional diameter b of upper interconnecting piece 3.5 and 3.4 junction of transition part
Less than the cross-sectional diameter c of lower interconnecting piece 3.6 and 3.4 junction of transition part；The protrusion (3.1) has 3 side wall of opposite cutter hub
Maximum gauge h, the maximum gauge h is the 20%-30% of diameter c numerical value, and each diameter is ranging from the present embodiment：
20mm<a<30mm；25mm<b<35mm；30mm<c<40mm.
The advantage designed in this way is, in the case where not increasing or increasing by 3 material of cutter hub on a small quantity, by 3 material weight of cutter hub
New distribution, forms advantageous shape, and optimize its operation shape, its stock utilization is made to improve, and performance advanced optimizes,
Penetration capacity improves, and reduces cutting resistance, it is ensured that protrusion 3.1 is to third described in the high speed of travel and high efficiency of machine
Cross section projects.
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
As a whole, the technical solutions in the various embodiments may also be suitably combined for book, and forming those skilled in the art can manage
The other embodiment of solution.
Claims (9)
1. a kind of band handle chisel for road milling machine, including head (2), head (2) are mounted on cutter hub (3) top, cutter hub
(3) it is inserted in handle of a knife (4) top, it is characterised in that：The circumferential side wall of the cutter hub (3) protrudes outward to form several uniform circular arrays
The protrusion (3.1) of row；
Described protrusion (3.1) side wall includes the first working face (3.2) and the second working face (3.3).
2. a kind of band handle chisel for road milling machine according to claim 1, it is characterised in that：The protrusion (3.1)
With the length C extended along cutter hub side wall, the length of the projection of raised (3.1) on cutter hub central axes is B, raised (3.1)
Maximum width be A, between relationship be A<B<C.
3. a kind of band handle chisel for road milling machine according to claim 1, it is characterised in that：Cutter hub (3) packet
Transition part (3.4) is included, transition part (3.4) side extends to form upper interconnecting piece along cutter hub central axis to head (2) direction
(3.5), the other side of transition part (3.4) extends to form lower interconnecting piece along the central axis of cutter hub (3) to handle of a knife (4) direction
(3.6), the outer diameter of upper interconnecting piece (3.5) is less than the outer diameter of lower interconnecting piece (3.6).
4. a kind of band handle chisel for road milling machine according to claim 3, it is characterised in that：The transition part
(3.4) side around the central axis of cutter hub (3) to the first curve from rotating the surfaces of revolution formed, the side of upper interconnecting piece (3.5)
Face rotates the surfaces of revolution formed by the second curve around the central axis of cutter hub (3), and the side of lower interconnecting piece (3.6) is by third curve
The surfaces of revolution to be formed is rotated around the central axis of cutter hub (3), the protrusion (3.1) is located at upper interconnecting piece (3.5) and lower interconnecting piece
(3.6) between.
5. a kind of band handle chisel for road milling machine according to claim 3, it is characterised in that：The upper interconnecting piece
(3.5) upper surface diameter a is less than upper interconnecting piece (3.5) and the cross-sectional diameter b of transition part (3.4) junction is less than lower connection
The cross-sectional diameter c in portion (3.6) and transition part (3.4) junction.
6. a kind of band handle chisel for road milling machine according to claim 5, it is characterised in that：The protrusion (3.1)
Maximum gauge h, the maximum gauge h with opposite cutter hub (3) side wall are the 20%-30% of diameter c numerical value.
7. a kind of band handle chisel for road milling machine according to claim 1, it is characterised in that：Cutter hub (3) top
End is equipped with receiving portion (3.7), and head (2) include top surface (2.1) and work department (2.3), work department (2.3) side of being gap-matched
Formula is embedded in receiving portion (3.7), and is connected and fixed the two using brazing process.
8. a kind of band handle chisel for road milling machine according to claim 7, it is characterised in that：The top surface (2.1)
Side for umbrella working face, work department (2.3) is frustum of a cone side, is cylindrical between top surface (2.1) and work department (2.3)
Working face (2.2).
9. a kind of band handle chisel for road milling machine according to claim 8, it is characterised in that：The top of top surface (2.1)
Angle α ranges are in 60 ° -100 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721663544.1U CN207793825U (en) | 2017-12-04 | 2017-12-04 | A kind of band handle chisel for road milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721663544.1U CN207793825U (en) | 2017-12-04 | 2017-12-04 | A kind of band handle chisel for road milling machine |
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| Publication Number | Publication Date |
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| CN207793825U true CN207793825U (en) | 2018-08-31 |
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| CN201721663544.1U Active CN207793825U (en) | 2017-12-04 | 2017-12-04 | A kind of band handle chisel for road milling machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049295A (en) * | 2017-12-04 | 2018-05-18 | 苏州五元素机械制造有限公司 | A kind of band handle chisel for road milling machine |
| CN114908652A (en) * | 2022-05-31 | 2022-08-16 | 江苏徐工工程机械研究院有限公司 | Milling cutter head, method for producing the milling cutter head, milling rotor and road milling machine |
-
2017
- 2017-12-04 CN CN201721663544.1U patent/CN207793825U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049295A (en) * | 2017-12-04 | 2018-05-18 | 苏州五元素机械制造有限公司 | A kind of band handle chisel for road milling machine |
| CN114908652A (en) * | 2022-05-31 | 2022-08-16 | 江苏徐工工程机械研究院有限公司 | Milling cutter head, method for producing the milling cutter head, milling rotor and road milling machine |
| CN114908652B (en) * | 2022-05-31 | 2023-10-03 | 江苏徐工工程机械研究院有限公司 | Milling cutter head, forming method thereof, milling rotor and pavement milling machine |
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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 Patentee after: Jiangsu Wuyuan Machinery Manufacturing Co.,Ltd. Address before: 215400 No. 4 Zhengzhong Road, Ludu Town, Taicang City, Suzhou City, Jiangsu Province Patentee before: SUZHOU WUYUANSU MACHINERY MANUFACTURING Co.,Ltd. |