CN210737648U - Milling cutter tooth assembly and double-wheel milling wheel - Google Patents
Milling cutter tooth assembly and double-wheel milling wheel Download PDFInfo
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- CN210737648U CN210737648U CN201920754281.8U CN201920754281U CN210737648U CN 210737648 U CN210737648 U CN 210737648U CN 201920754281 U CN201920754281 U CN 201920754281U CN 210737648 U CN210737648 U CN 210737648U
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- milling
- guide rail
- milling cutter
- cutter tooth
- hub
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Abstract
The utility model discloses a milling cutter tooth assembly and a double-wheel milling cutter wheel, which belong to the technical field of engineering machinery, and comprise a wheel hub, a milling mechanism, a guide rail and a base plate for fixing the guide rail, wherein the milling mechanism is pushed by the wheel hub to slide along the guide rail; the thickness of the section of the guide rail is gradually reduced from top to bottom. The utility model provides a milling cutter tooth subassembly, the scope is milled in easily controlling, can accomplish milling of base plate below rock-wall, avoids appearing milling the blind area, and whole milling process does not have the collision, long service life.
Description
Technical Field
The utility model belongs to the technical field of engineering machine tool, concretely relates to milling cutter tooth subassembly and double round milling cutter wheel.
Background
The double-wheel milling machine is the most advanced device for underground diaphragm wall construction, has the advantages of high milling efficiency, good grooving precision, strong stratum adaptability and the like, and has wide market prospect. The milling wheel is used as a core working device of the double-wheel milling, is directly contacted with a working medium, undertakes the tasks of milling and crushing the stratum and plays a key role in the whole construction efficiency.
The milling wheels are arranged on two sides of the base plate, and only do rotary motion around the central axis of the speed reducer without axial swing during working, so that a milling blind area with a certain width exists under the base plate to form a rock wall, and milling efficiency is influenced. At present, in order to solve the problems, in the prior art, a swing tooth mechanism is arranged on a milling wheel, and a rock wall below a substrate is milled and crushed through swing of swing teeth. However, the oscillating tooth mechanism has the problems of not-in-place oscillation, serious abrasion, short service life and the like, and the milling efficiency and the construction progress are seriously influenced.
The invention discloses a cutting tooth, a cutting wheel and a trencher (application number is 200410011503.5) which are hinged with each other, and provides a lever-type swing tooth structure, wherein the swing tooth rotates around a shaft by a guide ring colliding with a wear-resistant block, meanwhile, a stop piece is arranged on a rotating arm part to control the swinging angle, but the guide ring and the wear-resistant block are in rigid contact in the milling process and are accompanied with dynamic impact and collision, so that the stress on a pin shaft part is large, the phenomena of pin shaft abrasion and shaft sleeve fragmentation easily occur, the wear-resistant block is serious, and the phenomenon that the swing tooth does not swing in place often occurs. In addition, the invention discloses a central soil cutting tool (application number 201611008118.4) of a double-wheel milling machine, and provides a swing tooth mechanism based on a parallel four-bar linkage principle, wherein a side arm linkage is periodically pushed by a guide ring to swing a swing tooth, so that a lower dead zone is milled. Another invention relates to a double-wheel mill (application number 201010185351.6), which provides a magnetic-type swing tooth structure, wherein under the action of magnetic steel attraction, a milling cutter on a rotary cutter head is attracted to a central symmetrical plane of a speed reducer to mill blind areas and mill rocks, but enough attraction needs to be provided, when hard rocks are milled, the milling teeth are subjected to large milling resistance, the cutter head can be separated, and due to the action of magnetic force, the milling resistance is large, and the milling efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a milling cutter tooth subassembly and double round milling cutter wheel to solve among the prior art milling cutter tooth and easily bump with the base plate, the pendulum tooth pendulum is not in place, has the technical problem who mills the blind area.
The utility model provides a following technical scheme:
a milling cutter tooth assembly comprises a hub, a milling mechanism, a guide rail and a base plate for fixing the guide rail, wherein the milling mechanism is pushed by the hub to slide along the guide rail; the thickness of the section of the guide rail is gradually reduced from top to bottom.
Preferably, the milling mechanism comprises a sliding block sliding along the guide rail, a tooth holder fixedly connected with the sliding block, and milling teeth mounted on the tooth holder.
Preferably, a groove through which the sliding block can pass is formed in the hub, the sliding block is in clearance fit with the groove, and the sliding block can axially move along the hub while sliding along the guide rail.
Preferably, the end part of the sliding block is provided with a clamping block, the guide rail is provided with a sliding groove matched with the clamping block, and the clamping block slides along the sliding groove to drive the sliding block to slide along the guide rail.
Preferably, the cross section of the fixture block is in a T shape.
Preferably, the tooth holder is fixed on the sliding block through a plurality of bolts.
Preferably, the guide rail comprises a large guide rail and a small guide rail positioned inside the large guide rail, the large guide rail and the small guide rail are respectively positioned on the outer side and the inner side of the hub, and the section thicknesses of the large guide rail and the small guide rail are synchronously changed.
Preferably, the cross section of the guide rail is circular, the cross section of the upper half circumference of the guide rail is large in thickness, the cross section of the lower half circumference of the guide rail is small in thickness, and the cross section of the middle section of the guide rail is in smooth transition.
Preferably, the guide rail is assembled in a segmented mode and is fixed on the base plate in a bolt connection mode.
Preferably, both sides of the substrate are provided with a guide rail and a milling mechanism, and the guide rail and the milling mechanism are symmetrically distributed by taking the substrate as a center.
Preferably, the number of milling mechanisms is at least two.
Preferably, the number of the milling mechanisms is 4, and the milling mechanisms are symmetrically distributed on two sides of the substrate in pairs.
The double-wheel milling cutter comprises a milling cutter tooth assembly and a speed reducer, wherein a hub is mounted on the speed reducer.
Compared with the prior art, the utility model discloses the beneficial effect who reaches:
the guide rail in the utility model is fixed on the base plate, the milling mechanism is pushed by the hub to slide along the guide rail, and the movement track of the milling mechanism can be controlled by changing the thickness of the guide rail, thereby controlling the milling range, being applicable to the structure with a large speed reducer, being capable of completing the milling of the rock wall below the base plate and avoiding the milling blind zone; in addition, the section thickness of the guide rail is gradually reduced from top to bottom, and the milling mechanism can avoid collision with the substrate under the condition of expanding the milling range, so that the service life is long.
Drawings
Fig. 1 is a schematic structural view of a double-wheel milling wheel provided by an embodiment of the present invention after a wheel hub is removed;
FIG. 2 is a partial cross-sectional view of a dual wheel cutterhead provided by an embodiment of the present invention;
fig. 3 is a schematic view of an assembly structure of a slider and a hub provided by the embodiment of the present invention;
fig. 4 is a schematic view of an assembly structure of the sliding block, the large guide rail and the small guide rail provided by the embodiment of the present invention;
fig. 5 is a schematic view of an assembly structure of a slider and a tooth holder according to an embodiment of the present invention;
fig. 6 is a schematic view of an assembly structure of the slider and the gear seat at another view angle according to an embodiment of the present invention.
Labeled as: 11. a large guide rail; 12. a small guide rail; 13. a slider; 14. a tooth holder; 15. milling teeth; 16. a hub; 17. a bolt; 18. a clamping block; 19. a groove; 21. a speed reducer; 22. a rotation axis; 3. a substrate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that, in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention but do not require the present invention to be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. As used in the description of the present invention, the terms "front," "back," "left," "right," "up," "down" and "in" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1 and 2, the milling cutter tooth assembly comprises a hub 16, a milling mechanism, a guide rail and a base plate 3 for fixing the guide rail, wherein the milling mechanism is pushed by the hub 16 to slide along the guide rail; the thickness of the section of the guide rail is gradually reduced from top to bottom.
In this embodiment, the guide rail includes big guide rail 11 and the little guide rail 12 that is located big guide rail 11 inside, and big guide rail 11 and little guide rail 12 are located the outside and the inboard of wheel hub 16 respectively, and the cross-sectional thickness of big guide rail 11 and little guide rail 12 changes in step, and big, the cross-sectional shape of little guide rail is circular, and the first half circumference cross-sectional thickness of guide rail (11, 12) is big, and the second half circumference cross-sectional thickness is little, and the middle section thickness is gently transitive. The double-guide-rail form of the large guide rail 11 and the small guide rail 12 can accurately control the milling range, avoid the collision of the milling mechanism and the substrate 3, improve the structural stability of the milling cutter tooth assembly and be beneficial to prolonging the service life of the milling cutter tooth assembly.
As shown in fig. 1, 2, 5, and 6, two sides of the substrate 3 are provided with a guide rail and milling mechanisms, and the milling mechanisms are symmetrically distributed with the substrate 3 as a center, the number of the milling mechanisms is at least two, in this embodiment, four milling mechanisms are symmetrically distributed on two sides of the substrate 3. The milling mechanism comprises a sliding block 13 sliding along guide rails (11 and 12), a tooth holder 14 fixedly connected with the sliding block 13 and milling teeth 15 arranged on the tooth holder 14, and the tooth holder 14 is fixed on the sliding block 13 through a plurality of bolts 17, so that damaged parts can be replaced conveniently.
As shown in fig. 3, a groove 19 through which the slider 13 can pass is formed in the hub 16, the slider 13 is in clearance fit with the groove 19, when the hub 16 rotates around a rotation axis 22 of the reducer 21, the slider 13 is pushed to slide in the circumferential direction of the guide rails (11, 12), and the slider 13 moves in the groove 19 along the axial direction of the hub 16 according to the thickness change of the guide rails (11, 12); in addition, the sliding block 13 is arranged in the groove 19, so that the surface space of the hub 16 is not occupied, and the uniformity and flexibility of tooth arrangement on the surface of the hub 16 can be improved.
As shown in fig. 4, the end of the slider 13 is provided with a fixture block 18, the cross section of the fixture block 18 is T-shaped, the large guide rail 11 and the small guide rail 12 are provided with sliding grooves adapted to the fixture block 18, the fixture block 18 slides along the sliding grooves to drive the slider 13 to slide along the large guide rail 11 and the small guide rail 12, and further, the slider 13 slides strictly according to the structural form of the large guide rail 11 and the small guide rail 12.
As shown in fig. 1, the guide rails (11, 12) are assembled in segments and fixed on the base plate 3 in a bolt connection manner, so that the sliding block 13 can be installed and damaged parts can be replaced conveniently.
As shown in fig. 1, the double-wheel milling cutter comprises the milling cutter tooth assembly and a speed reducer 21, and a hub 16 is mounted on the speed reducer 21.
The utility model discloses a theory of operation does: during milling, the hub 16 rotates around the rotation axis 22 of the speed reducer 21 to drive the slider 13 installed in the groove to slide along the guide rails (11 and 12), the thickness of the guide rail on the upper half circle of the substrate 3 is large, the thickness of the guide rail on the lower half circle is small, along with the rotation of the hub 16, the milling teeth 15 move to the lower half circle along with the slider 13, due to the fact that the thickness of the guide rails (11 and 12) is small, the milling teeth 15 are close to the center line of the substrate 3, milling of rock walls below the substrate 3 can be completed, milling blind areas are avoided, when the milling teeth 15 move to the upper half circle along with the slider 13, the thickness of the guide rails (11 and 12) is increased, the milling teeth 15 are far away from the center line of the substrate 3, collision with the substrate 3 is avoided, and therefore.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (12)
1. The milling cutter tooth assembly is characterized by comprising a hub, a milling mechanism, a guide rail and a base plate for fixing the guide rail, wherein the milling mechanism is pushed by the hub to slide along the guide rail; the section thickness of the guide rail is gradually reduced from top to bottom; the milling mechanism comprises a sliding block sliding along the guide rail, a tooth holder fixedly connected with the sliding block and milling teeth arranged on the tooth holder.
2. The milling cutter tooth assembly according to claim 1, wherein the hub is provided with a groove through which the slider can pass, the slider is in clearance fit with the groove, and the slider can move axially along the hub while sliding along the guide rail.
3. The milling cutter tooth assembly according to claim 1 or 2, wherein a clamping block is arranged at an end of the sliding block, a sliding groove matched with the clamping block is arranged on the guide rail, and the clamping block slides along the sliding groove to drive the sliding block to slide along the guide rail.
4. The tooth milling cutter assembly of claim 3 wherein said cartridge has a T-shaped cross-sectional profile.
5. The milling cutter tooth assembly of claim 1 wherein said tooth holder is secured to said slide by a plurality of bolts.
6. The milling cutter tooth assembly of claim 1 wherein said rails include a large rail and a small rail located within the large rail, said large and small rails being located outside and inside of said hub, respectively, said large and small rails having synchronously varying cross-sectional thicknesses.
7. The cutter tooth milling assembly according to claim 1 or 6 wherein said guide rail is circular in cross-sectional shape, said guide rail having a large cross-sectional thickness in the upper half of the circumference and a small cross-sectional thickness in the lower half of the circumference, and a gradual transition in the cross-sectional thickness of the intermediate section.
8. The milling cutter tooth assembly of claim 1 wherein said rail is in segmented form and is bolted to said base plate.
9. The milling cutter tooth assembly of claim 1 wherein the base plate is provided with a guide rail and a milling mechanism on each side and is symmetrically disposed about the base plate.
10. The milling cutter tooth assembly of claim 1 wherein said milling mechanisms are at least two in number.
11. The milling cutter tooth assembly of claim 10 wherein said milling mechanisms are 4 in number and are symmetrically disposed on opposite sides of said base plate.
12. A two-wheeled milling cutter comprising a milling cutter tooth assembly according to any one of claims 1 to 11 and a speed reducer, the hub being mounted on the speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920754281.8U CN210737648U (en) | 2019-05-23 | 2019-05-23 | Milling cutter tooth assembly and double-wheel milling wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920754281.8U CN210737648U (en) | 2019-05-23 | 2019-05-23 | Milling cutter tooth assembly and double-wheel milling wheel |
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| Publication Number | Publication Date |
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| CN210737648U true CN210737648U (en) | 2020-06-12 |
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| CN201920754281.8U Active CN210737648U (en) | 2019-05-23 | 2019-05-23 | Milling cutter tooth assembly and double-wheel milling wheel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158693A (en) * | 2019-05-23 | 2019-08-23 | 江苏徐工工程机械研究院有限公司 | A kind of milling tooth assembly and Double-wheel milling milling wheel |
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2019
- 2019-05-23 CN CN201920754281.8U patent/CN210737648U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158693A (en) * | 2019-05-23 | 2019-08-23 | 江苏徐工工程机械研究院有限公司 | A kind of milling tooth assembly and Double-wheel milling milling wheel |
| CN110158693B (en) * | 2019-05-23 | 2024-03-01 | 江苏徐工工程机械研究院有限公司 | Milling cutter tooth assembly and double-wheel milling wheel |
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