CN109551629A - A kind of two-wheel milling unit head and two-wheel milling deep mixer - Google Patents

A kind of two-wheel milling unit head and two-wheel milling deep mixer Download PDF

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Publication number
CN109551629A
CN109551629A CN201811221844.3A CN201811221844A CN109551629A CN 109551629 A CN109551629 A CN 109551629A CN 201811221844 A CN201811221844 A CN 201811221844A CN 109551629 A CN109551629 A CN 109551629A
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CN
China
Prior art keywords
milling
wheel
side plate
unit head
mounting rack
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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
Application number
CN201811221844.3A
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Chinese (zh)
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CN109551629B (en
Inventor
林立
林龙海
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Shanghai Landi Construction Machinery Co Ltd
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Shanghai Landi Construction Machinery Co Ltd
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Priority to CN201811221844.3A priority Critical patent/CN109551629B/en
Publication of CN109551629A publication Critical patent/CN109551629A/en
Application granted granted Critical
Publication of CN109551629B publication Critical patent/CN109551629B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806Details; Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806Details; Accessories
    • B28C5/0831Drives or drive systems, e.g. toothed racks, winches
    • B28C5/085Hydraulic drives

Abstract

The invention discloses a kind of two-wheel milling unit head and two-wheel milling deep mixers, the power head includes mounting rack, two milling wheels, power mechanism, mounting rack has front and rear sides plate, and the medial surface of the both side plate is equipped with a milling wheel, two milling wheels or so distribution;Power mechanism is set to mounting rack, and connects milling wheel, to drive the two millings wheel to reversely rotate;Two milling wheels are obliquely installed to both side plate inside respectively, make to be respectively formed an angle between the vertical plane of each milling wheel shaft line and the side plate where the milling wheel, which is acute angle.Present invention can assure that the cutting range of two milling wheels is enough when power head is transferred, and side plate not will receive pan soil obstruction when power head sinking, keep power head downlink smooth.The inclined design of milling wheel also makes milling wheel side push away after the milling wheel cutting soil body is mixed with cement slurry to mud formation side, squeeze, cement slurry is made to overflow to interior survey, mixes more evenly with the soil body, to effectively improve stirring efficiency.

Description

A kind of two-wheel milling unit head and two-wheel milling deep mixer
Technical field
The present invention relates to a kind of building foundation pit seepproof screen forming machinery, more particularly to a kind of two-wheel milling unit head and double Take turns milling deep mixer.
Background technique
China's building foundation pit seepproof screen forming machinery mainly has three axial length helical blade stirrer stake machines and two-wheel milling at present Cement soil deep blender both, wherein three axial length helical blade stirrer stake machine pile low efficiencys, energy consumption is high, verticality difficulty control System.Since two-wheel milling unit head revolving speed is higher, (maximum (top) speed can achieve two-wheel milling cement soil deep blender per minute 35 turns), cutting tips number is more, and special structure design characteristic ensures entirely to cut whipping process and stirs into compared with three axis drilling The stake time shortens half, greatly improves work efficiency;Power head sinks and above mentions through guide rod and the movement of guide sleeve precise match, has Effect ensures into pile verticality.In addition, using cutting stirring by the way of lowering energy-saving, energy consumption than three axis blenders saving 20% with On.However, there is also shortcomings for the power head of the two-wheel milling cement soil deep blender of the prior art: the rotation of its milling wheel The vertical plane of axis is parallel with the installation side plate where milling wheel, causes power head decentralization blade cut to be limited in scope, and power Side plate will receive pan soil obstruction when head sinks, and cause power head downlink not smooth enough.
Summary of the invention
The present invention provides a kind of two-wheel milling unit head and two-wheel milling deep mixers, and which overcome the prior arts Shortcoming present in two-wheel milling unit head.
The technical solution adopted by the present invention to solve the technical problems is: a kind of two-wheel milling unit head, including mounting rack, Two milling wheels, power mechanism, mounting rack have front and rear sides plate, and the medial surface of the both side plate is equipped with a milling wheel, and two Milling wheel or so distribution;Power mechanism is set to mounting rack, and connects milling wheel, to drive the two millings wheel to reversely rotate;Two Milling wheel is obliquely installed to both side plate inside respectively, the vertical plane and the side plate where the milling wheel for making each milling wheel shaft line Between be respectively formed an angle, which is acute angle.
Further, the angle is less than or equal to 12 °;The both side plate is obliquely installed respectively inwards, makes the installation Frame forms up-narrow and down-wide structure;The inclination angle of each side plate is respectively acute angle, and is less than or equal to 5 °.
Further, the power mechanism includes two groups, which is set to the both side plate one by one respectively, And each group power mechanism respectively includes hydraulic motor and turns speed reducer by the shell that hydraulic motor drives, the two millings wheel respectively with The shell that the shell of two groups of power mechanisms turns speed reducer coaxially connects, with housing into rotation.
Further, the medial surface of the both side plate is respectively equipped with fixing seat, and the shell of two groups of power mechanisms turns to slow down Machine, hydraulic motor are respectively arranged in the fixing seat of both side plate, and each shell turns vertical plane and its institute of the pivot center of speed reducer Side plate between be respectively formed an angle, to be adapted to by its heeling condition of milling wheel driven.
Further, each milling wheel respectively includes milling cutting insert, which circumferentially distributed has multiple millings along its Cut tooth.
Further, it is respectively arranged with crushing lateral pin on each milling tooth of the milling cutting insert, each lateral pin that crushes passes through respectively Wear the front and rear sides face of the milling tooth where it.
Further, each milling wheel respectively further comprises a cylinder-shaped rotor, and the rotor is by the power mechanism Driving rotation;The quantity of the milling cutting insert of each milling wheel be it is multiple, multiple milling cutting insert is socketed in the rotation respectively In vitro, and the milling tooth of each milling cutting insert is staggered with the milling tooth on adjacent milling cutting insert one by one respectively.
Further, the mounting rack further includes connector, which connects the both side plate, and sets on the connector There are hydraulic oil pipe and grout channels.
The present invention separately provides a kind of two-wheel milling deep mixer, and the milling unit head of the blender is aforementioned present invention institute The two-wheel milling unit head stated.
Further, the walking mechanism of the blender is step moving mechanism, including two stride assemblies and support are always At;Two stride assemblies are installed on the opposite two sides in support assembly bottom end of blender, and support assembly is installed on the rack of blender Assembly bottom end, and between two stride assemblies, the two strides assembly and support assembly interoperation, before realizing complete machine Into, retreat or turn to.
Compared to the prior art, the invention has the following advantages:
1, two milling wheels of the invention are obliquely installed to both side plate inside respectively, make the vertical plane of each milling wheel shaft line It is respectively formed an angle between the side plate where the milling wheel, which is acute angle, when so may insure power head decentralization The cutting range of two milling wheels is enough, and side plate not will receive pan soil obstruction when power head sinking, keep power head downlink smooth. In addition, this inclined design of milling wheel, also makes milling wheel side after the milling wheel cutting soil body is mixed with cement slurry to mud It forms side push away, squeeze, cement slurry is made to overflow to interior survey, be mixed more evenly with the soil body, to effectively improve stirring efficiency.
2, both side plate of the invention is obliquely installed respectively inwards, so that the mounting rack of power head is formed up-narrow and down-wide structure, just It is above mentioned in power head smooth, while hydraulic oil pipe can be mounted on to side plate lateral surface without interfering power head operation, and realized The convenient installation of hydraulic oil pipe.
3, the power mechanism of power head of the present invention using hydraulic motor with shell turn speed reducer in conjunction with acquisition low-speed big it is defeated Out, it instead of the low speed high torque hydraulic motor of import, realizes production domesticization, reduces by 50% or more power head cost.
4, it is respectively arranged with crushing lateral pin on each milling tooth of the milling cutting insert of power head of the present invention, can be improved stirring effect Rate, and widen the stirring range of end face.
5, blender of the invention preferably uses step moving mechanism, has grounding pressure small, is suitable for soft place, adds Work is convenient, manufacturing cost is low, the features such as rivet bolt or counterweight is not necessarily in work progress.
Invention is further described in detail with reference to the accompanying drawings and embodiments;But a kind of two-wheel milling of the invention is dynamic Power head and two-wheel milling deep mixer are not limited to the embodiment.
Detailed description of the invention
Fig. 1 is the D structure schematic diagram of power head of the invention;
Fig. 2 is the main view of power head of the invention;
Fig. 3 is the right view of power head of the invention;
Fig. 4 is the top view of power head of the invention;
Fig. 5 is the bottom view of power head of the invention;
Fig. 6 is the cross-sectional view of power head of the invention;
Fig. 7 is the D structure schematic diagram of power head mounting rack of the invention;
Fig. 8 is the right view of power head mounting rack of the invention;
Fig. 9 is the structural schematic diagram of power head of the invention wherein side plate;
Figure 10 is the D structure schematic diagram of blender of the invention;
Figure 11 is the main view of blender of the invention.
Specific embodiment
Embodiment, referring to Figure 1 shown in-Fig. 9, a kind of two-wheel milling unit head of the invention, including mounting rack 1, two are milled Wheel 2, power mechanism are cut, mounting rack 1 has front and rear sides plate 11, and the medial surface of the both side plate 11 is equipped with a milling wheel (i.e. milling wheel is located on the medial surface of side plate, but is not limited to be mounted on side plate), the distribution of two milling wheels 2 or so.Engine Structure is set to mounting rack 1, and connects milling wheel, to drive the two millings wheel 2 to reversely rotate;Two milling wheels 2 are respectively to both side plate 11 insides are obliquely installed, and make to be respectively formed a folder between the vertical plane of each milling wheel shaft line and the side plate where the milling wheel Angle beta (as shown in Figure 8), angle β are acute angle.
In the present embodiment, the angle β is less than or equal to 12 °, takes 6 ° of preferred values.The both side plate 11 tilts respectively inwards Setting, makes the mounting rack 1 form up-narrow and down-wide structure;Each side plate inclined angle alpha (angle i.e. between side plate and vertical plane, As shown in Figure 8) it is respectively acute angle, and is less than or equal to 5 °, takes 2 ° of preferred values.
In the present embodiment, the power mechanism includes two groups, which is set to the two sides one by one respectively Plate 11, and each group power mechanism respectively includes hydraulic motor 3 and turns speed reducer 4, two milling by the shell that hydraulic motor 3 drives The shell that wheel 2 turns speed reducer 4 with the shell of two groups of power mechanisms respectively coaxially connects, with housing into rotation.The both side plate 11 Medial surface bottom is respectively equipped with fixing seat, and the shell of two groups of power mechanisms turns speed reducer 4, hydraulic motor 3 is respectively arranged in two In the fixing seat 15 of side plate 11, and each shell turns to distinguish shape between the vertical plane of the pivot center of speed reducer 4 and the side plate where it At an angle β, to be adapted to the heeling condition by its milling wheel driven.The hydraulic motor 3 of each group power mechanism is The output shaft of high speed and high pressure hydraulic motor, hydraulic motor 3 connects the shell that shell turns speed reducer 4 by spline.Before each fixing seat 15 After penetrate through, and equipped with cover board 5,6 at the rear and front end of fixing seat 15, make that shell turns speed reducer 4 and hydraulic motor 3 is hidden in fixation In the chamber of seat 15;Shell turns to be additionally provided with float grease seal structure 7 between speed reducer 4 and fixing seat 15.
In the present embodiment, each milling wheel respectively includes milling cutting insert 21 and cylinder-shaped rotor 22, two milling wheels 2 The shell that rotor 22 turns speed reducer 4 with the shell of two groups of power mechanisms respectively coaxially connects one by one, specific rotor 22 with Shell turns speed reducer 4 and is connected by flange bolt.Milling cutting insert 21 along its it is circumferentially distributed have multiple milling teeth, and on each milling tooth point It is not provided with and crushes lateral pin 23, for improving stirring efficiency, and widen the stirring range of end face;Each lateral pin 23 that crushes extends through The front and rear sides face of milling tooth where it.The quantity of the milling cutting insert 21 of each milling wheel is multiple, multiple milling cutter Piece 21 is fixedly attached to respectively outside the rotor 22, and the milling tooth of each milling cutting insert 21 is respectively and on adjacent milling cutting insert 21 Milling tooth be staggered one by one.
In the present embodiment, the mounting rack 1 further includes connector 13, which connects the both side plate 11, and should Connector 13 is equipped with hydraulic oil pipe 14 and grout channels 13.The both side plate 11 respectively strip, and the both side plate 11 Top passes through the connector 13 and is attached, and the both side plate 11 1 is tilted to the left, another is tilted to the right, to realize two Milling wheel 2 or so is distributed.The two millings wheel 2 is equipped in the medial surface bottom of both side plate 11.Before the fixing seat 15 In the cover board that both ends are equipped with afterwards, one of cover board 5 is mounted on the side plate at 15 place of fixing seat, another cover board 6 is then installed On the rotor 22 of corresponding milling wheel.
In the present embodiment, 11 medial surface of side plate is additionally provided with recessing groove 111, for the crushing on neighbouring milling wheel Lateral pin 23 is stepped down, and when milling wheel being avoided to rotate, the corresponding lateral pin that crushes is interfered with side plate.It is respectively arranged in each side plate There is hydraulic oil channel 112, one end of each hydraulic oil channel 112 is respectively turned on the hydraulic oil pipe 14, and the other end connects the liquid Pressure motor 3.
Side where a kind of two-wheel milling unit head of the invention, the vertical plane of each milling wheel shaft line and the milling wheel The angle β being respectively formed between plate may insure that the cutting range of two milling wheels when power head decentralization is enough, and under power head Side plate not will receive pan soil obstruction when heavy, keep power head downlink smooth.In addition, this inclined design of milling wheel, also makes milling Wheel side pushes away mud formation side after the milling wheel cutting soil body is mixed with cement slurry, squeezes, cement slurry is made to overflow to interior survey, with The soil body mixes more evenly, to effectively improve stirring efficiency.
Both side plate of the invention is obliquely installed respectively inwards, and the mounting rack of power head can be made to form up-narrow and down-wide structure, It is above mentioned convenient for power head smooth, while hydraulic oil pipe can be mounted on to side plate lateral surface without interfering power head operation, and real The convenient installation of existing hydraulic oil pipe.The power mechanism of power head of the present invention using hydraulic motor with shell turn speed reducer in conjunction with acquisition it is low Fast large torque output realizes production domesticization instead of the low speed high torque hydraulic motor of import, reduces by 50% or more power head cost.
A kind of two-wheel milling unit head of the invention, can apply on two-wheel milling deep mixer, existing for replacing There is the two-wheel milling unit head of technology.
Referring to Figure 10, shown in Figure 11, a kind of two-wheel milling deep mixer of the invention, the blender includes that milling is dynamic Power head 120, support assembly 140, assembly 110 of getting on the bus, walking mechanism, dynamical system 60, wirerope 80, mast assembly 20, mast Support frame 30, hydraulic winch 40, guide rod 90, guide sleeve 100, operation control room 50.Get on the bus assembly 110, operation control room 50, dynamical system 60 is located on support assembly 140, and mast assembly 20, which is located at, gets on the bus on assembly 110, guide rod 90, hydraulic elevator Machine 40 is located on mast assembly 20, and guide sleeve 100, which is located at, gets on the bus on assembly 110, and guide rod 90 passes through guide sleeve 100;Steel wire Rope 80 is wound around on hydraulic winch 40, and one end bypasses connection guiding after the pulley assembly 10 for being located at 20 top of mast assembly 90 top of bar.The milling unit head 120 is two-wheel milling unit head described in aforementioned present invention, and is located at 90 bottom of guide rod End.
In the present embodiment, the walking mechanism of the blender is step moving mechanism, including two stride assemblies 70 and branch Support assembly 130;Two stride assemblies 70 are installed on 140 bottom end of support assembly or so opposite two sides, and support assembly 130 is installed on machine 140 bottom end of frame assembly, and between two stride assemblies 70, the two strides assembly 70 and 130 interoperation of support assembly, with reality Advance, retrogressing or the steering of existing complete machine.The step moving mechanism has grounding pressure small, is suitable for soft place, processing side Just, manufacturing cost is low, the features such as rivet bolt or counterweight is not necessarily in work progress.
In the present embodiment, the milling unit head 120 sinks and above mentions through 100 precise match of guide rod 90 and guide sleeve Movement, effectively ensures into pile verticality.
When work, dynamical system 60 (motor or diesel engine) drives high-pressure oil pump to generate high pressure oil, and high pressure oil passes through liquid Pressure control system enters the hydraulic motor of milling unit head 120, and hydraulic motor output shaft rotation drives shell to turn the shell of speed reducer Rotation, two milling wheels of milling unit head 120 are rotated with the shell that shell turns speed reducer respectively, are cut to realize to the soil body It cuts and crushes, be sufficiently stirred with cement slurry.
Whipping process: hydraulic winch 40 rotates, and guide rod 90 is transferred, the cutting of the milling unit head 120 stirring soil body and water Mud tentatively mixes.When milling unit head 120 sink cutting the soil body arrive projected depth when, hydraulicdirectional control valve switching operation, be oriented to Bar 90 above mentions, and two milling wheel rotation directions of milling unit head 120 change, and is above mentioned the secondary agitation of process.
Above-described embodiment is only used to further illustrate that a kind of two-wheel milling unit head of the invention and two-wheel milling deep layer stir Machine is mixed, but the invention is not limited to embodiments, it is to the above embodiments any according to the technical essence of the invention Simple modification, equivalent change and modification is fallen within the scope of protection of technical solution of the present invention.

Claims (10)

1. a kind of two-wheel milling unit head, including mounting rack, two milling wheels, power mechanism, mounting rack has front and rear sides plate, The medial surface of the both side plate is equipped with a milling wheel, two milling wheels or so distribution;Power mechanism is set to mounting rack, and even Milling wheel is connect, to drive the two millings wheel to reversely rotate;It is characterized by: two milling wheels are set to inclination on the inside of both side plate respectively It sets, makes to be respectively formed an angle between the vertical plane of each milling wheel shaft line and the side plate where the milling wheel, which is Acute angle.
2. two-wheel milling unit head according to claim 1, it is characterised in that: the angle is less than or equal to 12 °;It is described Both side plate is obliquely installed respectively inwards, and the mounting rack is made to form up-narrow and down-wide structure;The inclination angle of each side plate is respectively acute angle, And it is less than or equal to 5 °.
3. two-wheel milling unit head according to claim 1, it is characterised in that: the power mechanism includes two groups, this two Group power mechanism is set to the both side plate one by one respectively, and each group power mechanism respectively includes hydraulic motor and by hydraulic motor The shell of driving turns speed reducer, and the shell that the two millings wheel turns speed reducer with the shell of two groups of power mechanisms respectively coaxially connects, with With housing into rotation.
4. two-wheel milling unit head according to claim 3, it is characterised in that: the medial surface of the both side plate is respectively equipped with Fixing seat, the shell of two groups of power mechanisms turns speed reducer, hydraulic motor is respectively arranged in the fixing seat of both side plate, and each shell Turn to be respectively formed an angle between the vertical plane of the pivot center of speed reducer and the side plate where it, with by its drive The heeling condition of milling wheel is adapted to.
5. two-wheel milling unit head according to claim 1, it is characterised in that: each milling wheel respectively includes milling cutter Piece, the milling cutting insert circumferentially distributed have multiple milling teeth along its.
6. two-wheel milling unit head according to claim 5, it is characterised in that: divide on each milling tooth of the milling cutting insert It is not provided with crushing lateral pin, each front and rear sides face for crushing lateral pin and extending through the milling tooth where it.
7. two-wheel milling unit head according to claim 5 or 6, it is characterised in that: each milling wheel respectively further comprises One cylinder-shaped rotor, which is driven by the power mechanism rotates;The quantity of the milling cutting insert of each milling wheel is Multiple, multiple milling cutting insert is socketed in respectively outside the rotor, and the milling tooth of each milling cutting insert respectively with adjacent milling Milling tooth on blade is staggered one by one.
8. two-wheel milling unit head according to claim 1, it is characterised in that: the mounting rack further includes connector, should Connector connects the both side plate, and the connector is equipped with hydraulic oil pipe and grout channels.
9. a kind of two-wheel milling deep mixer, it is characterised in that: the milling unit head of the blender is to appoint in claim 1-8 Two-wheel milling unit head described in one.
10. two-wheel milling deep mixer according to claim 9, it is characterised in that: the walking mechanism of the blender For step moving mechanism, including two stride assemblies and support assembly;Two stride assemblies are installed on the support assembly bottom of blender Opposite two sides are held, support assembly is installed on the support assembly bottom end of blender, and between two stride assemblies, two stride Assembly and support assembly interoperation, to realize the advance, retrogressing or steering of complete machine.
CN201811221844.3A 2018-10-19 2018-10-19 Double-wheel milling power head and double-wheel milling deep mixer Active CN109551629B (en)

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Application Number Priority Date Filing Date Title
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CN109551629B CN109551629B (en) 2024-03-29

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8403101D0 (en) * 1984-04-18 1984-06-08 Dynapac Maskin Ab ROTATION HEAD IN THE FORM OF A CUTTING HEAD OR CUTTING HEAD
US5035071A (en) * 1988-10-14 1991-07-30 Bauer Spezialtiefbau Gmbh Trench wall cutter
US5626298A (en) * 1995-10-20 1997-05-06 Arnoldy; Adrian F. Tub grinder with rear discharge hammer mill and angled shear plates
US20040060386A1 (en) * 2002-09-26 2004-04-01 Lee Yeong Industrial Co., Ltd. Transmission mechanism of drilling/milling tool
US20050093282A1 (en) * 2003-10-10 2005-05-05 Wirtgen Gmbh Road milling machine with steering gear
CN106522204A (en) * 2016-11-30 2017-03-22 上海市机械施工集团有限公司 Double-layer four-wheel groove milling device and milling method based on same
CN108086381A (en) * 2018-01-25 2018-05-29 中铁工程机械研究设计院有限公司 Two-wheel flute milling machine and grooving mode based on sprocket transmission and milling
US20180160857A1 (en) * 2015-04-21 2018-06-14 De'longhi Braun Household Gmbh Hand blender blade with milling edge
CN108330954A (en) * 2018-04-24 2018-07-27 徐工集团工程机械股份有限公司 A kind of Double-wheel milling agitating device
CN209478552U (en) * 2018-10-19 2019-10-11 上海岚迪建机有限公司 Two-wheel milling unit head and two-wheel milling deep mixer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8403101D0 (en) * 1984-04-18 1984-06-08 Dynapac Maskin Ab ROTATION HEAD IN THE FORM OF A CUTTING HEAD OR CUTTING HEAD
US5035071A (en) * 1988-10-14 1991-07-30 Bauer Spezialtiefbau Gmbh Trench wall cutter
US5626298A (en) * 1995-10-20 1997-05-06 Arnoldy; Adrian F. Tub grinder with rear discharge hammer mill and angled shear plates
US20040060386A1 (en) * 2002-09-26 2004-04-01 Lee Yeong Industrial Co., Ltd. Transmission mechanism of drilling/milling tool
US20050093282A1 (en) * 2003-10-10 2005-05-05 Wirtgen Gmbh Road milling machine with steering gear
US20180160857A1 (en) * 2015-04-21 2018-06-14 De'longhi Braun Household Gmbh Hand blender blade with milling edge
CN106522204A (en) * 2016-11-30 2017-03-22 上海市机械施工集团有限公司 Double-layer four-wheel groove milling device and milling method based on same
CN108086381A (en) * 2018-01-25 2018-05-29 中铁工程机械研究设计院有限公司 Two-wheel flute milling machine and grooving mode based on sprocket transmission and milling
CN108330954A (en) * 2018-04-24 2018-07-27 徐工集团工程机械股份有限公司 A kind of Double-wheel milling agitating device
CN209478552U (en) * 2018-10-19 2019-10-11 上海岚迪建机有限公司 Two-wheel milling unit head and two-wheel milling deep mixer

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