CN110158692B - Milling wheel - Google Patents
Milling wheel Download PDFInfo
- Publication number
- CN110158692B CN110158692B CN201910432486.9A CN201910432486A CN110158692B CN 110158692 B CN110158692 B CN 110158692B CN 201910432486 A CN201910432486 A CN 201910432486A CN 110158692 B CN110158692 B CN 110158692B
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- China
- Prior art keywords
- milling
- tooth
- hub
- wheel
- teeth
- 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.)
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- 238000003801 milling Methods 0.000 title claims abstract description 112
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000011435 rock Substances 0.000 abstract description 19
- 239000002893 slag Substances 0.000 abstract description 15
- 238000005299 abrasion Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
- E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
- E02F3/22—Component parts
- E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
- E02F3/241—Digging wheels; Digging elements of wheels; Drives for wheels digging wheels
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a milling wheel, which belongs to the technical field of engineering machinery and comprises a hub and a plurality of milling tooth assemblies, wherein each milling tooth assembly is spirally distributed on the outer circumferential surface of the hub, each milling tooth assembly comprises a tooth seat plate and milling teeth arranged on the tooth seat plate, and projections of adjacent milling teeth on the hub along the opening direction of the outer circle Zhou Zhan are overlapped with each other. The milling wheel provided by the invention has strong slag carrying capacity, can avoid the formation of a rock wall, and has less abrasion and long service life.
Description
Technical Field
The invention belongs to the technical field of engineering machinery, and particularly relates to a milling wheel.
Background
As one of the most advanced equipment for underground continuous wall construction, the double-wheel slot milling machine has the advantages of high construction efficiency, small peripheral disturbance, good slot forming quality and the like, and is increasingly widely applied to infrastructure construction. The construction principle is that a slurry protection wall and a working device milling wheel are adopted to mill and break a rock soil layer, a slag discharging system brings a mixture of rock slag and slurry to the ground, the mixture is filtered by a mud-water separation system, and the residual slurry is recycled to return to a tank section, so that the purpose of excavating and forming a tank is achieved. The milling wheel is used for breaking hard rock and soil layers, and stirring and conveying the milled rock and slag to a slag outlet.
The existing double-wheel slot milling machine is provided with milling blind areas in the width direction of the milling wheel according to a certain interval distance, so that a mud scraping plate arranged on a slag suction port can conveniently pass through. The stratum adaptability of the milling wheel with the dead zone in the middle is poor, a rock wall is easy to form at the dead zone in the milling process, the milling teeth and the tooth seat plate are worn, and even the milling wheel cannot be supported to continue to mill downwards; when the clay is in a sticky stratum, the clay at the dead zone can not be cut off in time, so that large clay blocks are easy to form; meanwhile, due to the existence of dead zones, the stirring slag carrying capacity of the milling wheel is poor, large mud blocks are precipitated outside the tank bottom and cannot be discharged out of the tank through the slag suction port in time, the accumulated mud blocks at the bottom are more and more, the tank bottom medium is layered, the thin mud is difficult to infiltrate downwards, the water is further evaporated due to heating in the continuous milling process of the milling wheel, the water content of the soil at the periphery of the milling wheel is smaller and smaller, the fluidity is worse and worse, the hardness is higher and higher, the soil wraps the milling wheel under the action of rotary extrusion of the milling wheel, a paste wheel is formed, the construction of the milling tank cannot be continued, the milling cutter frame needs to be lifted to the ground for manually removing the mud blocks, the construction efficiency is seriously influenced, and meanwhile, the stability of the tank wall is influenced by frequent lifting of the milling cutter frame in the deep tank construction, and the safety risk is brought.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a milling wheel with strong slag carrying capacity, which can avoid the formation of a rock wall, has less abrasion and long service life.
The invention provides the following technical scheme:
the utility model provides a milling wheel, includes wheel hub and a plurality of milling teeth subassembly, each milling teeth subassembly be spiral linear distribute in on the wheel hub outer circumference face, milling teeth subassembly includes the tooth bedplate and locates the milling teeth on the tooth bedplate, and adjacent milling teeth overlap joint each other along the projection of the external circle Zhou Zhan direction of wheel hub.
Preferably, one layer of tooth seat plates farthest from the milling center surface of the milling wheel are obliquely arranged in a direction away from the milling center surface, and the rest tooth seat plates are perpendicular to the outer circumferential surface of the hub.
Preferably, the inclination angle of the layer of tooth base plate farthest from the milling center surface of the milling wheel is 3-5 degrees.
Preferably, the hub is unfolded along the outer circumferential direction, milling teeth distributed on the same spiral line are positioned on the same straight line, are parallel to the straight lines where other milling teeth are positioned, and have an included angle of 30-45 degrees with the axis of the hub.
Preferably, along the axial direction of the hub, the vertical distance between adjacent milling teeth on the same spiral line is half of the width of the milling teeth.
Preferably, the hub further comprises a swing tooth, wherein the swing tooth is rotationally connected with a support, and the support is fixed on the surface of the hub.
Preferably, the width of the tooth holder plate gradually becomes smaller from the root to the top.
Preferably, the top edge of the tooth holder plate is arc-shaped.
Preferably, the milling teeth are mounted on the tooth base plate by nylon pins.
Preferably, the milling teeth are conical alloy heads or knife-type alloy heads.
Compared with the prior art, the invention has the beneficial effects that:
(1) The milling teeth assemblies are distributed on the outer circumferential surface of the hub in a spiral shape, projections of adjacent milling teeth on the hub along the direction of opening of the outer circle Zhou Zhan are overlapped with each other to form a non-blind area arrangement, so that the milling capability of the milling wheel on rock stratum is improved, the formation of a rock wall is avoided, and the abrasion of the milling teeth, a tooth seat plate and the swinging teeth is reduced.
(2) The spiral linear arrangement structure of the tooth seat plate improves the slag carrying capacity of the milling wheel, is beneficial to transferring rock and soil blocks milled at the bottom of the milling wheel to the position of the slag suction port in the center of the milling cutter frame, and avoids accumulation of rock and slag at the bottom of the milling cutter frame; in addition, the tooth seat plates are sequentially arranged in a spiral line structure, so that the tooth seat plates are protected from each other, an installation inclination angle is not required, eccentric wear of milling teeth is avoided, stress on welding seams of the tooth seat plates and the hub is reduced, and the service life of the milling wheel is prolonged.
Drawings
FIG. 1 is a schematic diagram of a cutterhead according to an embodiment of the present invention;
FIG. 2 is a side view of a cutterhead provided by an embodiment;
FIG. 3 is an expanded view of a hub of two juxtaposed cutterheads in an outer circumferential direction provided by an embodiment;
FIG. 4 is a projection of the hub provided by the embodiment in the direction of the opening of the outer circle Zhou Zhan;
marked in the figure as: 1. a hub; 2. a tooth base plate; 3. milling teeth; 4. nylon pins; 5. swinging teeth; 6. a hub axis; 7. a support; 8. a milling cutter rest center surface; 9. milling the center surface.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. The terms "front", "back", "left", "right", "upper", "lower" as used in the description of the present invention refer to directions in the drawings, and the terms "inner", "outer" refer to directions toward or away from the geometric center of a particular component, respectively.
1-2, a milling wheel comprises a wheel hub 1 and a plurality of milling tooth assemblies, wherein each milling tooth assembly is spirally distributed on the outer circumferential surface of the wheel hub 1, each milling tooth assembly comprises a tooth seat plate 2 and milling teeth 3 arranged on the tooth seat plate 2, and projections of adjacent milling teeth on the wheel hub 1 along the opening direction of the outer circle Zhou Zhan are overlapped with each other as shown in FIG. 4.
As shown in fig. 2, a layer of tooth seat plate 2 farthest from the milling center surface 9 of the milling wheel is obliquely arranged in a direction away from the milling center surface 9, so that the outer edge of the hub 1 and the end cover of the milling wheel are protected, the rest of tooth seat plates are perpendicular to the outer circumferential surface of the hub 1, the best stress is realized, and the abrasion of the milling teeth 3 and the tooth seat plate 2 can be reduced. The angle of the inclined angle beta of the layer of the tooth seat plate 2 farthest from the milling center surface 9 of the milling wheel is 3-5 degrees, the optimal stress is realized while the milling wheel is protected, and when the inclined angle beta is more than 5 degrees, the comprehensive stress of the tooth seat plate 2 is rapidly increased, and the abrasion degree is large.
As shown in fig. 3, the hubs 1 of two parallel milling wheels positioned on two sides of the central surface 8 of the milling cutter frame are unfolded along the outer circumferential direction, the milling teeth 3 distributed on the same spiral line are positioned on the same straight line and are parallel to the straight lines of other milling teeth, the included angle alpha between the milling teeth 3 and the hub axis 6 is 30-45 degrees, the milling teeth 3 form non-blind area arrangement, and when the alpha is in the range, the milling teeth 3 are less worn and can exert stronger milling strength. Along the axial direction of the hub 1, the vertical distance between adjacent milling teeth 3 on the same spiral line is half of the width of the milling teeth 3, so that the milling strength is ensured, and meanwhile, the pasting wheel caused by too close distance of each milling tooth 3 is prevented.
As shown in fig. 1, the milling wheel provided in this embodiment further includes a swinging tooth 5, the swinging tooth 5 is rotationally connected with a support 7, the support 7 is fixed on the surface of the hub 1, and the swinging tooth 5 is used for cutting a middle rock wall.
As shown in fig. 1, the width of the tooth seat plate 2 gradually decreases from the root to the top, and the top edge of the tooth seat plate 2 is arc-shaped, so that the abrasion suffered by the tooth seat plate 2 in the working process can be effectively reduced, and the service life of the tooth seat plate is prolonged.
As shown in fig. 1, the milling teeth 3 are mounted on the tooth holder plate 2 through nylon pins 4, so that the maintenance and replacement of the milling teeth 3 are facilitated. The milling teeth 3 are conical alloy heads or knife-shaped alloy heads, and when the conical alloy heads are installed, the rock breaking capacity of the milling wheel is high and the milling wheel is mainly applied to hard rock stratum, and when the knife-shaped alloy heads are installed, the milling wheel is mainly applied to milling of soft rock stratum.
The milling teeth assembly in this embodiment is spirally distributed on the outer circumferential surface of the hub 1, and projections of adjacent milling teeth 3 on the direction of opening the outer circle Zhou Zhan of the hub 1 overlap each other to form a non-blind area arrangement, so that the milling capability of the milling wheel on rock stratum is improved, the formation of rock walls is avoided, and the abrasion of the milling teeth 3, the tooth seat plates 2 and the swing teeth 5 is reduced. The spiral arrangement structure of the tooth base plates 2 improves the slag carrying capacity of the milling wheel, is beneficial to transferring the rock and soil blocks milled at the bottom of the milling wheel to the position of the slag suction port at the center of the milling cutter frame, and avoids the accumulation of rock and slag at the bottom of the milling wheel; in addition, the tooth seat plates 2 are sequentially arranged in a spiral line structure, are protected from each other, do not need to be provided with an installation inclination angle, avoid eccentric wear of the milling teeth 3, reduce stress at the welding seam of the tooth seat plates 2 and the hub 1, and prolong the service life of the milling wheel.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (7)
1. The milling wheel is characterized by comprising a wheel hub and a plurality of milling tooth assemblies, wherein each milling tooth assembly is spirally distributed on the outer circumferential surface of the wheel hub, each milling tooth assembly comprises a tooth seat plate and milling teeth arranged on the tooth seat plate, and projections of adjacent milling teeth on the wheel hub along the opening direction of the outer circle Zhou Zhan are overlapped with each other; one layer of tooth seat plates farthest from the milling center surface of the milling wheel are obliquely arranged in a direction away from the milling center surface, and the rest tooth seat plates are perpendicular to the outer circumferential surface of the hub; the inclination angle of the layer of tooth seat plate farthest from the milling center surface of the milling wheel is 3-5 degrees; and the hub is unfolded along the outer circumferential direction, milling teeth distributed on the same spiral line are positioned on the same straight line, are parallel to the straight lines where other milling teeth are positioned, and have an included angle of 30-45 degrees with the axis of the hub.
2. A cutterhead according to claim 1, wherein the vertical distance between adjacent cutterheads on the same spiral line is half the width of the cutterhead along the axial direction of the hub.
3. The cutterhead of claim 1, further comprising a wobble tooth rotatably coupled to a carrier, the carrier being secured to the hub surface.
4. A cutterhead according to claim 1 wherein the tooth plate tapers in width from root to tip.
5. A cutterhead according to claim 1 or 4 wherein the top edge of the tooth plate is arcuate.
6. A cutterhead in accordance with claim 1 wherein the cutterhead is mounted to the cutterhead by nylon pins.
7. A milling wheel according to claim 1, wherein the milling teeth are conical or knife-shaped alloy heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910432486.9A CN110158692B (en) | 2019-05-23 | 2019-05-23 | Milling wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910432486.9A CN110158692B (en) | 2019-05-23 | 2019-05-23 | Milling wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110158692A CN110158692A (en) | 2019-08-23 |
| CN110158692B true CN110158692B (en) | 2024-03-01 |
Family
ID=67632176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910432486.9A Active CN110158692B (en) | 2019-05-23 | 2019-05-23 | Milling wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110158692B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847269A (en) * | 2019-11-27 | 2020-02-28 | 江苏徐工工程机械研究院有限公司 | Milling wheel of slot milling machine for building construction and slot milling machine |
| CN111058363A (en) * | 2019-12-11 | 2020-04-24 | 江阴市勤丰金属制品有限公司 | Milling device |
| CN111021450A (en) * | 2019-12-12 | 2020-04-17 | 广州奔桥建筑科技有限公司 | Milling wheel assembly and double-wheel slot milling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4306363A (en) * | 1980-04-18 | 1981-12-22 | Unit Rig & Equipment Co. | Side cutter apparatus for an excavating machine |
| DE3519774A1 (en) * | 1985-06-03 | 1986-12-04 | Karl Bauer Spezialtiefbau GmbH & Co KG, 8898 Schrobenhausen | MILLING DEVICE FOR A SLOT WALL MILLING |
| US5248188A (en) * | 1992-06-15 | 1993-09-28 | Walgren Craig B | Chain for trencher apparatus |
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-
2019
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| Publication number | Publication date |
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| CN110158692A (en) | 2019-08-23 |
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