CN108396623A - A kind of milling machine for being convenient for deashing and conveniently moving - Google Patents

A kind of milling machine for being convenient for deashing and conveniently moving Download PDF

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Publication number
CN108396623A
CN108396623A CN201810315429.8A CN201810315429A CN108396623A CN 108396623 A CN108396623 A CN 108396623A CN 201810315429 A CN201810315429 A CN 201810315429A CN 108396623 A CN108396623 A CN 108396623A
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CN
China
Prior art keywords
fixed
motor
fixedly connected
milling
room
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Granted
Application number
CN201810315429.8A
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Chinese (zh)
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CN108396623B (en
Inventor
陈晓娜
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Nanjing Fuzhong Automobile Equipment Technology Co.,Ltd.
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陈晓娜
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Priority to CN201810315429.8A priority Critical patent/CN108396623B/en
Publication of CN108396623A publication Critical patent/CN108396623A/en
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Publication of CN108396623B publication Critical patent/CN108396623B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088Rotary tools, e.g. milling drums
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/50Methods or devices for preventing dust by spraying or sucking

Abstract

The invention discloses a kind of milling machines for being convenient for deashing and conveniently moving,Including milling room,First motor is installed above the milling room,The side of the milling room is fixedly connected with the first belt pulley,Movable pulley is installed at the bosom position of first belt pulley,The side of the movable pulley is equipped with sliding rail by bolt,The side of first belt pulley is connected with connecting shaft,The both sides of the milling room are symmetrically installed with front-wheel,And one end of milling room is equipped with fixed bin,The side of the first motor is equipped with diesel-driven generator,The diesel-driven generator is fixedly arranged above fuel tank,The present invention is mounted with mobile wheel apparatus and rotates base device,First the bolt of movable pulley side is unscrewed,It is in relaxed state to make the first belt pulley,The depth on notcher fluting road surface is set to deepen,After reaching suitable depth,Movable pulley is fixed again,Avoid the problem of notcher is not easy to adjustment width as needed and depth.

Description

A kind of milling machine for being convenient for deashing and conveniently moving
Technical field
The invention belongs to field of mechanical technique, and in particular to a kind of milling machine for being convenient for deashing and conveniently moving.
Background technology
Small-size concrete milling machine is also known as small-sized milling machine, bridge floor milling machine, terrace milling machine or high ferro beam facing cut planer, It is the light-duty road and bridge face machinery of small-size multifunction for integrating milling, plucking, cleaning, polishing that it, which is a, in a word, with China The construction high speed development of highway and high-speed railway, small-size concrete milling machine are also increasingly recognized by transport development person With and favor, and practical to deck paving, bridge floor plucking extensively, the absolute altitude of high speed railway box beam bridge floor and rail bed plate is adjusted Gentle milling and plane operation, highway bridge floor, bridge faulting of slab ends, exceeded high-order bit carry out milling, leveling, and to different kinds of roads graticule Cleaning;Impaired ground polishing;Among the constructions of mattess, the operations such as contamination processing.
But there are some defects in milling machine currently on the market, be fitted without movable pulley and rotation during use Seat, notcher is not easy to adjustment width as needed and depth, is fitted without nozzle, generates a large amount of dusts, hinder user after Continuous operation, is fitted without exhaust fan, and the sundries such as clod after fluting stop that this milling machine moves, and are fitted without crawler belt, this milling Machine is not easy to move in concave-convex road surface.
Invention content
The purpose of the present invention is to provide a kind of milling machines for being convenient for deashing and conveniently moving, to solve above-mentioned background technology Middle proposition is fitted without movable pulley and rotation seat, and notcher is not easy to adjustment width as needed and depth, is fitted without spray Head generates a large amount of dusts, hinders user to continue operation, is fitted without exhaust fan, the sundries such as clod after fluting stop this milling The problem of planer moves, and is fitted without crawler belt, this milling machine is not easy to move, cause to topple in concave-convex road surface.
To achieve the above object, the present invention provides the following technical solutions:A kind of milling machine for being convenient for deashing and conveniently moving, Including milling room, first motor is installed above the milling room, the side of the milling room is fixedly connected with the first belt It takes turns, movable pulley is installed at the bosom position of first belt pulley, the side of the movable pulley is equipped with by bolt The side of sliding rail, first belt pulley is connected with connecting shaft, and the both sides of the milling room are symmetrically installed with front-wheel, and milling room One end fixed bin is installed, the side of the first motor is equipped with diesel-driven generator, and the top of the diesel-driven generator is solid Surely there is fuel tank.
Further, the both ends of the connecting shaft engage connection, two notchers with two notchers by gear One end be respectively and fixedly provided with fixed seat, and the inside of two notchers is rotatably connected to rotation seat by shaft, described wherein one It is fixed with two electric telescopic rods above a notcher, two electric telescopic rods are fixedly arranged above fixed plate, institute The side for stating rotation seat is installed with third motor.
Further, the side of the diesel-driven generator is installed with water tank, and the lower end of the water tank is fixedly connected with Water pipe, and the side of water tank is equipped with long-pending object case, the side of the water pipe is equipped with solenoid valve, and one end of water pipe is connected with product The lower inside of hydroecium, the ponding room is fixed with nine nozzles, and the outside of ponding room is equipped with fixed bin.
Further, the inner wall of the long-pending object case is installed with sound-proof material, and the interior side of product object case passes through hinge It is rotatably connected to folding door, one end of the long-pending object case is fixedly connected with exhaust fan, and the lower end of the exhaust fan is fixedly connected with The lower end of air hose, the air hose is fixedly connected with air hose mouth, and the side of the long-pending object case is equipped with AT89S52 controllers, and product Fixed case is installed, the side of the fixed case is fixedly connected with milling room below object case.
Further, the inner upper of the fixed case is installed with the second fixed link, under second fixed link Side is fixedly connected with support column, and the lower end of the support column is fixedly connected there are two the first fixed link, and two described first are fixed The both ends of bar are installed with idler wheel, and crawler belt, and the outside of another two idler wheel are equipped on the outside of idler wheel described in two of which Crawler belt is installed, the side of one of them idler wheel is connected with the second motor, second electricity by the second pulley rotation The side of machine is installed with fixed column.
Further, telescoping handle is fixedly connected at the upper side of the fixed column, the lower section of the telescoping handle is solid Dingan County is equipped with support plate, and one end of the support plate and the side of fixed case be fixedly connected by welding, the first motor, the Two motors, solenoid valve, exhaust fan, electric telescopic rod and third motor are electrically connected with AT89S52 controllers, described AT89S52 controllers are electrically connected with diesel-driven generator.
Compared with prior art, the present invention having the advantages that:
(1) present invention is mounted with mobile wheel apparatus and rotates base device, selects the notcher of suitable width as needed, leads to It crosses AT89S52 controllers and opens third motor, the work of third motor rotates rotation seat, makes two notcher being fixedly connected rotations Turn, suitable notcher is selected to be fixed perpendicular to ground, if fluting road surface depth needs to increase, first revolves the bolt of movable pulley side Pine is moved by sliding rail, and it is in relaxed state to make the first belt pulley, then opens two electric telescopic rods by AT89S52 controllers, So that two electric telescopic rods is pushed fixed seat and rotation seat, so that the depth on notcher fluting road surface is deepened, reach suitable depth Afterwards, then movable pulley is fixed, avoids the problem of notcher is not easy to adjustment width as needed and depth.
(2) present invention is mounted with ejecting device, opens solenoid valve by AT89S52 controllers, the water in water tank is made to pass through Water pipe flows into ponding room, and road surface is sprayed to by nine nozzles, and dust when road surface being made to be slotted is reduced, and is convenient for user Operation when avoiding using this milling machine operation, generates a large amount of dusts, hinders user to continue operation, influence user's body The problem of health.
(3) present invention is mounted with that exhaust fan device, the clod after fluting are not easy to this milling machine and are moved, passed through AT89S52 controllers open exhaust fan, are sucked the rubbish such as clod in air hose by air hose mouth, and product object case is being entered out of air hose Interior collection after the completion of work, can open folding door and handle rubbish clod, avoid the sundries such as the clod after fluting and stop this milling The problem of planer movement.
(4) present invention is mounted with crawler attachment, and the second motor, the second motor work band are opened by AT89S52 controllers Dynamic second pulley rotation, the second pulley rotation drive two idler wheel rotations, the crawler belt outside two idler wheel rotation drives to turn It is dynamic, just this milling machine is made to be moved, avoids the problem of this milling machine is not easy to move, cause to topple in concave-convex road surface.
Description of the drawings
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the rearview of the present invention;
Fig. 3 is the milling chamber interior structural schematic diagram of the present invention;
Fig. 4 is the fixed bin internal structure schematic diagram of the present invention;
Fig. 5 is the circuit block diagram of the present invention;
In figure:1- millings room, 2- diesel-driven generators, 3- fixed cases, 4- water tanks, 5- products object case, 6-AT89S52 controllers, Before 7- fixed columns, 8- rotation seats, 9- support plates, 11- sliding rails, 12- movable pulleys, the first belt pulleys of 13-, 14- first motors, 15- Wheel, 16- connecting shafts, 21- fuel tanks, the second belt pulleys of 31-, 32- crawler belts, the first fixed links of 33-, 34- support columns, 35- idler wheels, The second motors of 36-, the second fixed links of 37-, 41- fixed bins, 42- solenoid valves, 43- water pipes, 44- ponding room, 45- nozzles, 51- foldings Folded door, 52- sound-proof materials, 53- exhaust fans, 54- air hoses, 55- air hoses mouth, 71- telescoping handles, 81- fixed seats, 82- electric expansions Bar, 83- notchers, 84- gears, 85- shafts, 86- thirds motor, 87- fixed plates.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
- 5 are please referred to Fig.1, the present invention provides the following technical solutions:1. a kind of milling machine for being convenient for deashing and conveniently moving, Including milling room 1, the top of milling room 1 is equipped with first motor 14, and the side of milling room 1 is fixedly connected with the first belt pulley 13, movable pulley 12 is installed, movable pulley 12 slides, and makes the first belt pulley 13 in pine at the bosom position of first belt pulley 13 Relaxation state keeps groove depth adjustable, and the side of movable pulley 12 is equipped with sliding rail 11, the side of the first belt pulley 13 by bolt It is connected with connecting shaft 16, the both sides of milling room 1 are symmetrically installed with front-wheel 15, and one end of milling room 1 is equipped with fixed bin 41, the The side of one motor 14 is equipped with diesel-driven generator 2, and diesel-driven generator 2 is fixedly arranged above fuel tank 21.
2. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 1, the both ends of connecting shaft 16 pass through tooth Wheel 84 engages connection with two notchers 83, and one end of two notchers 83 is respectively and fixedly provided with fixed seat 81, and two notchers 83 Inside rotation seat 8 is rotatably connected to by shaft 85, the top of one of notcher 83 is fixed with two and electronic stretches Contracting bar 82, two electric telescopic rods 82 push notcher 83, and convenient for control groove depth, the top of two electric telescopic rods 82 is solid There are fixed plate 87, the side of rotation seat 8 to be installed with third motor 86, the work of third motor 86 makes the rotation of rotation seat 8 just surely It works in adjusting suitable notcher 83.
3. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 1, the side of diesel-driven generator 2 is fixed Water tank 4 is installed, the lower end of water tank 4 is fixedly connected with water pipe 43, and the side of water tank 4 is equipped with long-pending object case 5, and the one of water pipe 43 Side is equipped with solenoid valve 42, and solenoid valve 42 enters convenient for control water in ponding room 44, and one end of water pipe 43 is connected with ponding room 44, the lower inside of ponding room 44 is fixed with nine nozzles 45, and the outside of ponding room 44 is equipped with fixed bin 41.
4. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 3, the inner wall of product object case 5 are fixedly mounted There is sound-proof material 52, and the interior side of product object case 5 is rotatably connected to folding door 51 by hinge, one end of product object case 5, which is fixed, to be connected It is connected to exhaust fan 53, exhaust fan 53 handles the waste collections such as clod after fluting, is convenient for follow-up work, the lower end of exhaust fan 53 It is fixedly connected with air hose 54, the lower end of air hose 54 is fixedly connected with air hose mouth 55, and the side of product object case 5 is equipped with AT89S52 controls Device 6 processed, and the lower section of product object case 5 is equipped with fixed case 3, the side of fixed case 3 is fixedly connected with milling room 1.
5. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 4, the inner upper of fixed case 3 are fixed Second fixed link 37 is installed, the lower section of the second fixed link 37 is fixedly connected with support column 34, and the lower end of support column 34, which is fixed, to be connected First fixed link 33 there are two connecing, the both ends of two the first fixed links 33 are installed with idler wheel 35, two of which idler wheel 35 Outside crawler belt 32 is installed, crawler belt 32 moves convenient for this milling machine, and the outside of another two idler wheel 35 is equipped with crawler belt 32, In the side of an idler wheel 35 the second motor 36 is rotatably connected to by the second belt pulley 31, peace is fixed in the side of the second motor 36 Equipped with fixed column 7.
6. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 5, the upper side of fixed column 7 is fixed It is connected with telescoping handle 71, telescoping handle 71 is convenient for adjusting, and easy to use, the lower section of telescoping handle 71 is installed with support plate 9, one end and the side of fixed case 3 of support plate 9 are fixedly connected by welding, first motor 14, the second motor 36, solenoid valve 42, exhaust fan 53, electric telescopic rod 82 and third motor 86 are electrically connected with AT89S52 controllers 6, AT89S52 controllers 6 It is electrically connected with diesel-driven generator 2.
The operation principle and process for using of the present invention:Diesel oil will be added in the fuel tank 21 of this milling machine, passes through diesel generation It is that the power supply of this milling machine uses, then by topped up with water in water tank 4, the second electricity is opened by AT89S52 controllers 6 that machine 2, which is allowed to power generation, Machine 36, the work of the second motor 36 drive the rotation of the second belt pulley 31, the rotation of the second belt pulley 31 that two idler wheels 35 is driven to rotate, and two Crawler belt 32 outside the rotation drive of a idler wheel 35 rotates, and just this milling machine is made to be moved, when being moved to cement flooring need to slot, The notcher 83 of selection suitable width as needed opens third motor 86,86 work of third motor by AT89S52 controllers 6 Work rotates rotation seat 8, and two notchers being fixedly connected 83 is made to rotate, and selects suitable notcher 83 solid perpendicular to ground It is fixed, if fluting road surface depth needs to increase, first the bolt of 12 side of movable pulley is unscrewed, is moved by sliding rail 11, the first belt is made Wheel 13 is in relaxed state, then opens two electric telescopic rods 82 by AT89S52 controllers 6, and two electric telescopic rods 82 is made to push away Dynamic fixed seat 81 and rotation seat 8 make the depth on the fluting of notcher 83 road surface deepen, after reaching suitable depth, then fixed movement Wheel 12, opening first motor 14 makes the first belt pulley 13 rotate, and the rotation of the first belt pulley 13 drives connecting shaft 16 to rotate, connecting shaft 16 rotations make 84 engagement rotation of gear at both ends, notcher 83 just rotate and carry out fluting work, be beaten by AT89S52 controllers 6 Open electromagnetic valve 42 makes the water in water tank 4 pass through water pipe 43 and flows into ponding room 44, is sprayed to road surface by nine nozzles 45, makes Dust when road surface is slotted is reduced, and is convenient for user's operation, the clod after fluting to be not easy to this milling machine and moved, is led to It crosses AT89S52 controllers 6 and opens exhaust fan 53, sucked the rubbish such as clod in air hose 54 by air hose mouth 55, from air hose 54 It is interior to enter collection in product object case 5, after the completion of work, folding door 51 can be opened and handle rubbish clod, user can stand to support On plate 9, holds telescoping handle 71 and carry out the work of fluting road surface, it is practical and convenient.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (6)

1. a kind of milling machine for being convenient for deashing and conveniently moving, including milling room (1), it is characterised in that:The milling room (1) Top is equipped with first motor (14), and the side of the milling room (1) is fixedly connected with the first belt pulley (13), first skin Movable pulley (12) is installed, the side of the movable pulley (12) is equipped with cunning by bolt at the bosom position of belt wheel (13) The side of rail (11), first belt pulley (13) is connected with connecting shaft (16), and the both sides of the milling room (1) are symmetrically installed with Front-wheel (15), and the one end of milling room (1) is equipped with fixed bin (41), the side of the first motor (14) is equipped with diesel oil hair Motor (2), the diesel-driven generator (2) are fixedly arranged above fuel tank (21).
2. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 1, it is characterised in that:The connecting shaft (16) both ends engage connection with two notchers (83) by gear (84), and one end of two notchers (83) is fixed Have a fixed seat (81), and the inside of two notchers (83) is rotatably connected to rotation seat (8) by shaft (85), it is described wherein Two electric telescopic rods (82) are fixed with above one notcher (83), the top of two electric telescopic rods (82) is solid There are fixed plate (87), the side of the rotation seat (8) to be installed with third motor (86) surely.
3. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 1, it is characterised in that:The diesel oil hair The side of motor (2) is installed with water tank (4), and the lower end of the water tank (4) is fixedly connected with water pipe (43), and water tank (4) Side long-pending object case (5) is installed, the side of the water pipe (43) is equipped with solenoid valve (42), and one end connection of water pipe (43) There are ponding room (44), the lower inside of the ponding room (44) to be fixed with nine nozzles (45), and the external peace of ponding room (44) Equipped with fixed bin (41).
4. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 3, it is characterised in that:The long-pending object case (5) inner wall is installed with sound-proof material (52), and the interior side of product object case (5) is rotatably connected to folding door by hinge (51), one end of the long-pending object case (5) is fixedly connected with exhaust fan (53), and the lower end of the exhaust fan (53) is fixedly connected with wind It manages (54), the lower end of the air hose (54) is fixedly connected with air hose mouth (55), and the side of the long-pending object case (5) is equipped with AT89S52 controllers (6), and fixed case (3) is installed below product object case (5), side and the milling room of the fixed case (3) (1) it is fixedly connected.
5. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 4, it is characterised in that:The fixed case (3) inner upper is installed with the second fixed link (37), and support is fixedly connected with below second fixed link (37) Column (34), the lower end of the support column (34) are fixedly connected with that there are two the first fixed link (33), two first fixed links (33) both ends are installed with idler wheel (35), crawler belt (32) are equipped on the outside of idler wheel (35) described in two of which, and another Crawler belt (32) is installed on the outside of two idler wheels (35), the side of one of them idler wheel (35) passes through the second belt pulley (31) It is rotatably connected to the second motor (36), the side of second motor (36) is installed with fixed column (7).
6. a kind of milling machine for being convenient for deashing and conveniently moving according to claim 5, it is characterised in that:The fixed column (7) it is fixedly connected with telescoping handle (71) at the upper side of, support plate is installed with below the telescoping handle (71) (9), one end and the side of fixed case (3) of the support plate (9) are fixedly connected by welding, the first motor (14), Two motors (36), solenoid valve (42), exhaust fan (53), electric telescopic rod (82) and third motor (86) are controlled with AT89S52 Device (6) is electrically connected, and the AT89S52 controllers (6) are electrically connected with diesel-driven generator (2).
CN201810315429.8A 2018-04-10 2018-04-10 Milling machine convenient to deashing and remove convenience Active CN108396623B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810315429.8A CN108396623B (en) 2018-04-10 2018-04-10 Milling machine convenient to deashing and remove convenience

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810315429.8A CN108396623B (en) 2018-04-10 2018-04-10 Milling machine convenient to deashing and remove convenience

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CN108396623A true CN108396623A (en) 2018-08-14
CN108396623B CN108396623B (en) 2020-06-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109137697A (en) * 2018-10-30 2019-01-04 李娜 A kind of small building machinery concrete milling machine
CN112281613A (en) * 2020-10-30 2021-01-29 冷云清 Highway patching device with oil spout cooling effect

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CN201198558Y (en) * 2008-05-07 2009-02-25 长沙中联重工科技发展股份有限公司 Low pressure sprinkling adjustable system of milling and planing machine
EP2128340A1 (en) * 2008-05-28 2009-12-02 Air-tec AG Method and device for the removal of floor coverings
CN201694272U (en) * 2010-02-05 2011-01-05 陕西长大实业有限公司 Novel traveling crawler
CN102493325A (en) * 2011-12-17 2012-06-13 于健 Road surface milling machine
CN205474760U (en) * 2016-04-07 2016-08-17 姬新建 Bituminous paving who takes dust collecting equipment mills plane fluting all -in -one
CN106758732A (en) * 2016-12-30 2017-05-31 天津佰思特新材料科技有限公司 A kind of adjustable groover of walking highway twolip

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Publication number Priority date Publication date Assignee Title
CN201198558Y (en) * 2008-05-07 2009-02-25 长沙中联重工科技发展股份有限公司 Low pressure sprinkling adjustable system of milling and planing machine
EP2128340A1 (en) * 2008-05-28 2009-12-02 Air-tec AG Method and device for the removal of floor coverings
CN201694272U (en) * 2010-02-05 2011-01-05 陕西长大实业有限公司 Novel traveling crawler
CN102493325A (en) * 2011-12-17 2012-06-13 于健 Road surface milling machine
CN205474760U (en) * 2016-04-07 2016-08-17 姬新建 Bituminous paving who takes dust collecting equipment mills plane fluting all -in -one
CN106758732A (en) * 2016-12-30 2017-05-31 天津佰思特新材料科技有限公司 A kind of adjustable groover of walking highway twolip

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109137697A (en) * 2018-10-30 2019-01-04 李娜 A kind of small building machinery concrete milling machine
CN109137697B (en) * 2018-10-30 2020-08-18 李娜 Concrete milling machine for small-size construction machinery
CN112281613A (en) * 2020-10-30 2021-01-29 冷云清 Highway patching device with oil spout cooling effect
CN112281613B (en) * 2020-10-30 2022-06-17 五峰山通工程建设有限责任公司 Highway patching device with oil spout cooling effect

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