CN104790284A - Pavement grooving machine - Google Patents

Pavement grooving machine Download PDF

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Publication number
CN104790284A
CN104790284A CN201510148662.8A CN201510148662A CN104790284A CN 104790284 A CN104790284 A CN 104790284A CN 201510148662 A CN201510148662 A CN 201510148662A CN 104790284 A CN104790284 A CN 104790284A
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CN
China
Prior art keywords
cutting
cutting wheel
wheel support
road
slot
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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
CN201510148662.8A
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Chinese (zh)
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CN104790284B (en
Inventor
朱金凤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Keyi oil and gas engineering equipment Service Co. Ltd.
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朱金凤
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Publication date
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Priority to CN201510148662.8A priority Critical patent/CN104790284B/en
Publication of CN104790284A publication Critical patent/CN104790284A/en
Application granted granted Critical
Publication of CN104790284B publication Critical patent/CN104790284B/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
    • E01C23/09Devices 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 forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/0906Devices 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 forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
    • E01C23/0926Devices 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 forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters
    • E01C23/0933Devices 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 forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters rotary, e.g. circular-saw joint cutters

Abstract

The invention relates to a pavement grooving machine. The pavement grooving machine comprises a grooving device mounted at the front end of a driving device, wherein the driving device comprises a power station housing; a diesel tank, an electric control cabinet, a hydraulic control cabinet and a hydraulic oil tank are mounted in front of the power station housing; a diesel engine and an oil pump are mounted in the power station housing; caterpillar tracks are mounted below the power station housing and are driven by a hydraulic motor; the grooving device comprises a cutting wheel mounted on a cutting wheel bracket; the cutting wheel is driven by the hydraulic motor; a slag removal plate and a dustproof cover are mounted on the cutting wheel bracket; the slag removal plate is positioned in front of the cutting wheel; the dustproof cover is positioned behind the cutting wheel; a slag outlet is formed in the side surface of the cutting wheel bracket; the cutting wheel bracket is connected with the front end of the driving device through a sliding frame. The pavement grooving machine is small in size, light in weight and convenient to operate, is used for paving a cable and a pipeline, and is efficient and environment-friendly; grooves can be conveniently and quickly formed under the conditions of pavements such as concrete pavements and asphalt pavements; the pavements are protected and do not need to be grooved manually; meanwhile, the pavement grooving machine is provided with the dustproof cover, and raised dust during working can be effectively prevented.

Description

Road surface slot-cutting machine
Technical field
The present invention relates to engineering equipment technical field, particularly relate to the equipment for road surface fluting.
Background technology
In cable, pipeline laying process, need to offer mounting groove at the place of laying, pipeline, cable are buried in groove.In prior art, on road surface, fluting is generally artificial hand-held notcher and operates, its advantage be use flexibly, convenient, but its shortcoming existed is obvious: notcher is driven by diesel engine, and during work, vibration is large, and need larger hand-held power, labour intensity is large; The dust that fluting produces is many, affects the healthy and contaminated environment of workman; Groove depth and width are grasped by hand, and its control effects is not good, and larger to cell body outer road surface destructiveness when slotting.
Have the groover converted by sliding loader at present, be replaced with the groove cutter head of fluting by loader front end operate portions.This fluting function reduces the labour intensity of workman, avoid workman's dust suction too much, but it also exists following shortcoming: the system pressure of groover is little, and very require great effort when opening darker groove, efficiency is low; During fluting, airborne dust is comparatively large, although workman is isolated from driver's cabin, the pollution of large airborne dust to environment is larger; The build of groover is huge, is not suitable for the interior operations among a small circle such as narrow road.
Summary of the invention
The above-mentioned shortcoming that the applicant exists for prior art, provides a kind of road surface slot-cutting machine, realizes special computer for special use, improves system pressure, increases work efficiency, also avoid the impact of dust on environment.
The technical solution adopted in the present invention is as follows:
A kind of road surface slot-cutting machine, comprise the grooving apparatus being installed on drive unit front end, described drive unit comprises power station case, power station case front is provided with diesel fuel tanks, electrical control cubicles, hydraulic control cabinet and hydraulic oil container, diesel engine and oil pump are installed in power station case, crawler belt is installed in the below of power station case, and crawler belt is by fluid motor-driven; Grooving apparatus comprises the cutting wheel be installed on cutting wheel support, and cutting wheel is by fluid motor-driven; Cutting wheel support is provided with the scarfing cinder plate being positioned at cutting wheel front and the dust cover being positioned at cutting wheel rear, the side of cutting wheel support is with slag notch, and cutting wheel support is connected with the front end of drive unit by slippage frame.
Further improvement as technique scheme:
The front end of described drive unit is fixed with hoist cylinder, and the upper end of hoist cylinder is connected described slippage frame; Described slippage frame comprises the side seat board be fixed on hoist cylinder, sideslip oil cylinder and upper slip shaft setting up and down and lower slip shaft is fixed with between relative both sides seat board, be fixed with the middle seat board reinforced between upper slip shaft and lower slip shaft and slidably connect traversing parts, the side of traversing parts is connected with the piston rod of sideslip oil cylinder, and its opposite side is connected with cutting wheel support.
Traversing parts comprise relative biside plate, and to be connected oil cylinder fixing base by junction plate between biside plate, the piston rod of oil cylinder fixing base and sideslip oil cylinder is hinged; The upper end thereof pressurization oil cylinder of biside plate, the upper end thereof hole of the pressurization piston rod of oil cylinder and cutting wheel support is hinged, the lower end of biside plate and the lower end hinge hole of cutting wheel support hinged.
The side face of described cutting wheel is provided with cutting teeth, and the tooth axle of cutting teeth and the extrados tangent line of cutting wheel are with the angle of 42 °-46 °, and the wheel side of the relative cutting wheel of tooth axle of cutting teeth is with the drift angle of 3 °-8 °.
Described angle is 45 °, and described drift angle is 5 °.
One end of described scarfing cinder plate is articulated with the side of cutting wheel support by deep-slotted chip breaker, the other end is provided with the scarfing cinder hook coincide with cutting wheel support extrados, and the side of scarfing cinder plate is connected by oscillating oil cylinder with between the side of cutting wheel support.
One end and the cutting wheel support of dust cover are hinged, and its other end is provided with roller.
The side of cutting wheel support is with the baffle plate of slagging tap being positioned at slag notch place.
The side of cutting wheel support is with reinforcing rib.
Also comprise the wireless receiving module be installed in electrical control cubicles and the remote controller mated with described wireless receiving module, the course of work of groover described in remote controller Long-distance Control.
Beneficial effect of the present invention is as follows:
The present invention compares traditional mode of grooving manually, greatly reduces labour intensity, improves working environment, avoids health of human body to be affected; Compare the groover converted by sliding loader, have the feature of special computer for special use, improve system pressure, be suitable for deep trouth, opening of sipes is cut, it is applied widely; Good dustproof construction is set, dust pollution environment when avoiding grooving; Arrange rational cutting wheel, the destructiveness to ground during reduction grooving, improves the degree of accuracy of grooving.
Compact structure of the present invention, light, adopt crawler haulage structure, can trailer up and down voluntarily, also there are Non-follow control and wireless remote control two kinds of control modes, facilitate personnel's practical operation; On the pavement conditions such as cement, pitch, can output groove quickly and easily, for cable, the laying of pipeline, both protected road surface, did not need hand excavation, carried dust cover simultaneously, airborne dust when effectively can prevent work, high-efficiency environment friendly.
Accompanying drawing explanation
Fig. 1 is three-dimensional structure diagram of the present invention.
Fig. 2 is front view of the present invention.
Fig. 3 is the structure chart of cutting wheel of the present invention.
Fig. 4 is the structure chart of cutting wheel support of the present invention.
Fig. 5 is the structure chart of slippage frame of the present invention.
Fig. 6 is the structure chart of slippage parts of the present invention.
Fig. 7 is the structure chart of dust cover of the present invention.
In figure: 1, power station case; 2, hydraulic oil container; 3, hydraulic control cabinet; 4, electrical control cubicles; 5, diesel fuel tanks; 6, crawler belt; 7, slippage frame; 71, side seat board; 72, upper slip shaft; 73, lower slip shaft; 74, middle seat board; 8, hoist cylinder; 9, cutting wheel support; 91, to slag tap baffle plate; 92, slag notch; 93, upper end thereof hole; 94, lower end hinge hole; 95, reinforcing rib; 10, scarfing cinder plate; 101, deep-slotted chip breaker; 11, dust cover; 111, roller; 12, cutting wheel; 121, cutting teeth; 13, scarfing cinder hook; 14, traversing parts; 141, side plate; 142, oil cylinder fixing base; 15, sideslip oil cylinder; 16, pressurize oil cylinder; 17, oscillating oil cylinder.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 1 and Figure 2, the road surface slot-cutting machine of the present embodiment, comprise the grooving apparatus being installed on drive unit front end, drive unit comprises power station case 1, power station case 1 front is provided with diesel fuel tanks 5, electrical control cubicles 4, hydraulic control cabinet 3 and hydraulic oil container 2, be provided with diesel engine and oil pump in power station case 1, crawler belt 6 is installed in the below of power station case 1, and crawler belt 6 is by fluid motor-driven; Grooving apparatus comprises the cutting wheel 12 be installed on cutting wheel support 9, and cutting wheel 12 is by fluid motor-driven; Cutting wheel support 9 is provided with the scarfing cinder plate 10 being positioned at cutting wheel 12 front and the dust cover 11 being positioned at cutting wheel 12 rear, the side of cutting wheel support 9 is with slag notch 92, and cutting wheel support 9 is connected with the front end of drive unit by slippage frame 7.Diesel engine oil-feed pump provides power, and oil pump drives hydraulic motor work, and hydraulic motor drives crawler belt 6 to walk and cutting wheel 12 rotates grooving.
As shown in Fig. 1, Fig. 5, Fig. 6, the front end of drive unit is fixed with hoist cylinder 8, and the upper end of hoist cylinder 8 is connected slippage frame 7, and hoist cylinder 8 is for realizing the descending operation of slippage frame 7; Slippage frame 7 comprises the side seat board 71 be fixed on hoist cylinder 8, sideslip oil cylinder 15 and upper slip shaft 72 setting up and down and lower slip shaft 73 is fixed with between relative both sides seat board 71, be fixed with the middle seat board 74 reinforced between upper slip shaft 72 and lower slip shaft 73 and slidably connect traversing parts 14, the side of traversing parts 14 is connected with the piston rod of sideslip oil cylinder 15, and its opposite side is connected with cutting wheel support 9.Traversing parts 14 comprise relative biside plate 141, to be connected oil cylinder fixing base 142 between biside plate 141 by junction plate, and oil cylinder fixing base 142 is hinged with the piston rod of sideslip oil cylinder 15; The upper end thereof pressurization oil cylinder 16 of biside plate 141, the upper end thereof hole 93 of the pressurization piston rod of oil cylinder 16 and cutting wheel support 9 is hinged, the lower end of biside plate 141 and the lower end hinge hole 94 of cutting wheel support 9 hinged.Hoist cylinder 8 realizes the descending operation of slippage frame 7, is combined, controls the height of cutting wheel 12 with pressurization oil cylinder 16, thus controls the degree of depth and the pressure of grooving.
As shown in Figure 3, the side face of cutting wheel 12 is provided with cutting teeth 121, and the tooth axle of cutting teeth 121 and the extrados tangent line of cutting wheel 12 are with the angle of 42 °-46 °; The wheel side of the relative cutting wheel 12 of tooth axle of cutting teeth 121 is with the drift angle of 3 °-8 °.The density degree of the cutting teeth 121 relatively angle of cutting wheel 12 and drift angle, cutting teeth 121 is arranged for the road surface of unlike material, hardness respectively.In the present invention, cutting teeth 121 can be changed according to pavement behavior, and cutting teeth 121 comprises toothholder and tooth, and toothholder is welded on cutter unit, and tooth is inserted in toothholder, when replaceable after odontotripsis.Cutter unit is bolted on cutting wheel 12.In practical operation, when needing the density according to road conditions adjustment cutting teeth 121, cutter unit can be changed; When after odontotripsis, directly tooth can be changed.For general road conditions, angle is set to 45 °, drift angle is 5 °.
As shown in Figure 2, one end of scarfing cinder plate 10 is articulated with the side of cutting wheel support 9 by deep-slotted chip breaker 101, the other end is provided with the scarfing cinder hook 13 coincide with cutting wheel support 9 extrados, is connected between the side of scarfing cinder plate 10 with the side of cutting wheel support 9 by oscillating oil cylinder 17.Oscillating oil cylinder 17 promotes scarfing cinder plate 10 and swings, and scarfing cinder plate 10 is realized to the function put down or lift.Under groover off position, oscillating oil cylinder 17 receives the end, and scarfing cinder plate 10 is in pull-up state; During groover duty, along with cutting wheel 12 rotates, after groove depth reaches predetermined value, Artificial Control oscillating oil cylinder 17 works, and scarfing cinder plate 10 is put into the position on laminating road surface, plays scarfing cinder dustproof effect, and lay scarfing cinder hook 13, the disintegrating slag do not cleaned out in groove is taken up.
As shown in Figure 7, one end and the cutting wheel support 9 of dust cover 11 are hinged, and its other end is provided with roller 111; Dust cover 11 relies on free gravity to be articulated with on cutting wheel support 9, and the lower limb of dust cover 11 and earth surface, avoid airborne dust to produce.
As shown in Figure 4, the side of cutting wheel support 9 is with the baffle plate 91 of slagging tap being positioned at slag notch 92 place, and slag charge, for leading to the slag charge of grooving, is derived from slag notch 92 by baffle plate 91 of slagging tap.
As shown in Figure 4, for improving support strength, the side of cutting wheel support 9 is with reinforcing rib 95.
Control assembly (hydraulic control cabinet 3, electrical control cubicles 4, diesel engine and oil pump) in the present invention can be controlled by parameters manually, also remote control can be carried out, namely the wireless receiving module be installed in electrical control cubicles 4 and the remote controller mated with wireless receiving module can also be comprised, the course of work of remote controller Long-distance Control groover.
Small volume and less weight of the present invention, adopts crawler-tread, can upper and lower trailer voluntarily, has Non-follow control and wireless remote control two kinds of control modes, facilitates personnel's practical operation.At cement, the pavement conditions such as pitch can output 0 ~ 500mm degree of depth quickly and easily, the groove that 50mm is wide, for cable, the laying of pipeline, both protected road surface, did not need hand excavation, carried dust cover simultaneously, airborne dust when effectively can prevent work, high-efficiency environment friendly.
More than describing is explanation of the invention, and be not the restriction to invention, limited range of the present invention is see claim, and when without prejudice to spirit of the present invention, the present invention can do any type of amendment.

Claims (10)

1. a road surface slot-cutting machine, comprise the grooving apparatus being installed on drive unit front end, it is characterized in that: described drive unit comprises power station case (1), power station case (1) front is provided with diesel fuel tanks (5), electrical control cubicles (4), hydraulic control cabinet (3) and hydraulic oil container (2), power station case is provided with diesel engine and oil pump in (1), crawler belt (6) is installed in the below of power station case (1), and crawler belt (6) is by fluid motor-driven; Grooving apparatus comprises the cutting wheel (12) be installed on cutting wheel support (9), and cutting wheel (12) is by fluid motor-driven; Cutting wheel support (9) is provided with the scarfing cinder plate (10) being positioned at cutting wheel (12) front and the dust cover (11) being positioned at cutting wheel (12) rear, the side of cutting wheel support (9) is with slag notch (92), and cutting wheel support (9) is connected with the front end of drive unit by slippage frame (7).
2. road surface as claimed in claim 1 slot-cutting machine, is characterized in that: the front end of described drive unit is fixed with hoist cylinder (8), and the upper end of hoist cylinder (8) is connected described slippage frame (7); Described slippage frame (7) comprises the side seat board (71) be fixed on hoist cylinder (8), sideslip oil cylinder (15) and upper slip shaft (72) setting up and down and lower slip shaft (73) is fixed with between relative both sides seat board (71), be fixed with the middle seat board (74) reinforced between upper slip shaft (72) and lower slip shaft (73) and slidably connect traversing parts (14), the side of traversing parts (14) is connected with the piston rod of sideslip oil cylinder (15), and its opposite side is connected with cutting wheel support (9).
3. road surface as claimed in claim 2 slot-cutting machine, it is characterized in that: traversing parts (14) comprise relative biside plate (141), to be connected oil cylinder fixing base (142) by junction plate between biside plate (141), oil cylinder fixing base (142) is hinged with the piston rod of sideslip oil cylinder (15); Upper end thereof pressurization oil cylinder (16) of biside plate (141), piston rod and the upper end thereof hole (93) of cutting wheel support (9) of pressurization oil cylinder (16) are hinged, the lower end of biside plate (141) and the lower end hinge hole (94) of cutting wheel support (9) hinged.
4. road surface as claimed in claim 1 slot-cutting machine, it is characterized in that: the side face of described cutting wheel (12) is provided with cutting teeth (121), the tooth axle of cutting teeth (121) and the extrados tangent line of cutting wheel (12) are with the angle of 42 °-46 °, and the wheel side of the relative cutting wheel of tooth axle (12) of cutting teeth (121) is with the drift angle of 3 °-8 °.
5. road surface as claimed in claim 4 slot-cutting machine, it is characterized in that: described angle is 45 °, described drift angle is 5 °.
6. road surface as claimed in claim 1 slot-cutting machine, it is characterized in that: one end of described scarfing cinder plate (10) is articulated with the side of cutting wheel support (9) by deep-slotted chip breaker (101), the other end is provided with the scarfing cinder hook (13) coincide with cutting wheel support (9) extrados, is connected between the side of scarfing cinder plate (10) with the side of cutting wheel support (9) by oscillating oil cylinder (17).
7. road surface as claimed in claim 1 slot-cutting machine, is characterized in that: one end and the cutting wheel support (9) of dust cover (11) are hinged, and its other end is provided with roller (111).
8. road surface as claimed in claim 1 slot-cutting machine, is characterized in that: the side of cutting wheel support (9) is with the baffle plate of slagging tap (91) being positioned at slag notch (92) place.
9. road surface as claimed in claim 1 slot-cutting machine, is characterized in that: the side of cutting wheel support (9) is with reinforcing rib (95).
10. road surface as claimed in claim 1 slot-cutting machine, is characterized in that: also comprise the wireless receiving module be installed in electrical control cubicles (4) and the remote controller mated with described wireless receiving module, the course of work of groover described in remote controller Long-distance Control.
CN201510148662.8A 2015-03-31 2015-03-31 Road surface slot-cutting machine Active CN104790284B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105113767A (en) * 2015-08-15 2015-12-02 丁仁 Novel grooving machine
CN106592401A (en) * 2016-12-20 2017-04-26 中南安全环境技术研究院股份有限公司 Slotting equipment for additionally arranging dowel bars at joints of cement concrete pavement plates
CN107386082A (en) * 2017-08-23 2017-11-24 郑州大学 A kind of high-efficiency ground grooving apparatus
CN107974912A (en) * 2017-12-27 2018-05-01 李雨林 A kind of road and bridge construction road surface cutter device
CN110219228A (en) * 2018-06-19 2019-09-10 韩玉锐 A kind of road repair grooving apparatus
CN111926666A (en) * 2020-07-02 2020-11-13 丁丽丽 High-efficient patching device of bituminous paving for municipal works

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110184884B (en) * 2019-06-12 2021-07-06 台州市卢宏建筑装饰有限公司 Cement pavement template installation laminating machine

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US4456303A (en) * 1982-04-05 1984-06-26 Due Joseph E Machine and method for grooving pavement
WO1998009041A1 (en) * 1996-08-30 1998-03-05 Komatsu Ltd. Cutting device
CN1584214A (en) * 2004-05-21 2005-02-23 长沙中联重工科技发展股份有限公司 Anti-interference milling controlling method and controller for milling planar cutter
DE202009002459U1 (en) * 2009-02-20 2009-05-28 AS Baugeräte Alfred Söder Mobile implement
US20110203565A1 (en) * 2007-05-24 2011-08-25 Clark Equipment Company Vehicle-Mounted Hydraulic Slab Cutter
US20140028077A1 (en) * 2012-07-27 2014-01-30 DAVID L. PERKINS, Jr. Track driven slab saw
CN204662228U (en) * 2015-03-31 2015-09-23 朱金凤 Road surface slot-cutting machine

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Publication number Priority date Publication date Assignee Title
US4456303A (en) * 1982-04-05 1984-06-26 Due Joseph E Machine and method for grooving pavement
WO1998009041A1 (en) * 1996-08-30 1998-03-05 Komatsu Ltd. Cutting device
CN1584214A (en) * 2004-05-21 2005-02-23 长沙中联重工科技发展股份有限公司 Anti-interference milling controlling method and controller for milling planar cutter
US20110203565A1 (en) * 2007-05-24 2011-08-25 Clark Equipment Company Vehicle-Mounted Hydraulic Slab Cutter
DE202009002459U1 (en) * 2009-02-20 2009-05-28 AS Baugeräte Alfred Söder Mobile implement
US20140028077A1 (en) * 2012-07-27 2014-01-30 DAVID L. PERKINS, Jr. Track driven slab saw
CN204662228U (en) * 2015-03-31 2015-09-23 朱金凤 Road surface slot-cutting machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105113767A (en) * 2015-08-15 2015-12-02 丁仁 Novel grooving machine
CN106592401A (en) * 2016-12-20 2017-04-26 中南安全环境技术研究院股份有限公司 Slotting equipment for additionally arranging dowel bars at joints of cement concrete pavement plates
CN107386082A (en) * 2017-08-23 2017-11-24 郑州大学 A kind of high-efficiency ground grooving apparatus
CN107974912A (en) * 2017-12-27 2018-05-01 李雨林 A kind of road and bridge construction road surface cutter device
CN110219228A (en) * 2018-06-19 2019-09-10 韩玉锐 A kind of road repair grooving apparatus
CN111926666A (en) * 2020-07-02 2020-11-13 丁丽丽 High-efficient patching device of bituminous paving for municipal works

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