CN105821746A - Driving type pavement trenching machine - Google Patents
Driving type pavement trenching machine Download PDFInfo
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- CN105821746A CN105821746A CN201510009123.6A CN201510009123A CN105821746A CN 105821746 A CN105821746 A CN 105821746A CN 201510009123 A CN201510009123 A CN 201510009123A CN 105821746 A CN105821746 A CN 105821746A
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Abstract
The invention relates to a driving type pavement trenching machine which comprises a self-walking device and a trenching device, wherein two lifting arms on the self-walking device are connected with a rack; the trenching device comprises a rack, a cutter disc rack and a milling mechanism; a working cylinder is hinged to the lifting arms and the rack; a transverse adjusting cylinder and a guide column are mounted on the rack; the cutter disc rack comprises a connecting main body and a semi-circular cutter cover; the guide sleeve on the connecting main body sleeves the guide column; the milling mechanism is mounted on the cutter cover; scrap outlet holes are formed in a left side plate and a right side plate on one scrap outlet side of the cutter cover; scrap guide tubes are arranged at the scrap outlet holes of the left side plate and the right side plate; a disc-shaped cutter disc of the milling mechanism is mounted on a hydraulic motor; milling cutters comprise at least four arc-shaped cutter bases which are mounted on the cutter disc through fasteners and at least three milling heads fixed on the arc-shaped cutter bases. The driving type pavement trenching machine has the characteristics that the structure is simple, a pavement structure is not damaged when an optical cable groove is trenched, the working efficiency is high, and the depth of the trench and the trenching positions can be conveniently adjusted.
Description
Technical field
The present invention relates to a kind of driving-type road surface slotting machine, belong to road surface slotting machine tool technical field.
Background technology
Development along with fiber-optic communication project, optical-fibre communications coverage is more and more wider, but the optical cable laying as the communications infrastructure the most all uses provided underground, and generally require and carry out excavating operation at Colophonium, cement pavement, and need 300～600mm for burying the degree of depth of the groove putting optical cable underground, the road surface impact on optical cable could be reduced, thus be accordingly used in and bury the gash depth of optical cable underground and require deeper.Existing fluting apparatus and some milling equipment all cannot realize the ditching depth requirement of optical cable groove, as used excavator to excavate, road pavement structure can cause bigger destruction, and use manual type to carry out excavating groove, inefficiency, the most time-consumingly, long construction period, labor intensity is big, it is impossible to meet job requirements.Moreover the milling mechanism being currently used for road surface slotting machine uses monoblock type cutter head structure, each cutting plate for milling cutters is directly welded along the circumferencial direction of cutterhead, after one of them cutting plate for milling cutters damages, due to cutterhead discontinuity, cause the most again the damage of other cutting plate for milling cutters, not only affecting milling effect, and need to change whole cutterhead, working service is relatively costly.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, will not damage by pavement structure when to optical cable channel excavation, work efficiency is high, can facilitate the driving-type road surface slotting machine being adjusted groove depth and slotting position.
The present invention is that the technical scheme reaching above-mentioned purpose is: a kind of driving-type road surface slotting machine, it is characterised in that: including self-walking apparatus and grooving apparatus, self-walking apparatus is hinged with two lift arms, the load lifting cylinder being arranged on self-walking apparatus is hinged on the middle part of lift arm；Described grooving apparatus includes frame, cutterhead frame and milling mechanism, the front portion of frame is provided with pivoting support and lifting arm seat, and be hinged on bottom lift arm on lifting arm seat, one end of working cylinder is hinged on the bottom of lift arm, the other end is hinged on the pivoting support of frame, frame is provided with the lateral adjustments cylinder for controlling cutterhead frame transverse shifting and for the guide pillar guiding cutterhead frame transverse shifting；
Described cutterhead frame includes the connection main body for being connected with frame and is fixed in connection main body and the semicircular cutter cover of lower openings, the guide pin bushing connected in main body is sleeved on guide pillar, the end of lateral adjustments cylinder connects with being connected main body, milling mechanism is installed on cutter cover, cutter cover covers at the cutterhead of milling mechanism, cutter cover is positioned at the left plate of bits side and right plate is provided with crumb mouth, left plate and right plate are provided with crumb guiding pipe at crumb mouth, described cutter cover afterbody has Position limiting wheel frame, and position-limited wheel is arranged on Position limiting wheel frame；
Described milling mechanism includes hydraulic motor, cutterhead and milling cutter, hydraulic motor is arranged on cutter cover, discoidal cutterhead is arranged on the output shaft of hydraulic motor, described milling cutter includes four arc tool rests being arranged on cutterhead above by securing member and is fixed on the milling head of each arc tool rest more than three, and the arc-shaped seat at each milling head arcuately tool rest top is fixedly installed.
Wherein: the milling head on described arc tool rest includes at least one center milling head and the tilting oblique milling head of two or more, the Milling Centre axis of described center milling head is parallel with cutterhead radial central planes, tiltedly angle≤60 ° between Milling Centre axis and the cutterhead radial central planes of milling head, and the Milling Centre axis of oblique milling head is towards left side or/and right side is arranged.
Described arc tool rest has 6～10, and arc tool rest includes the L-shaped structure that riser and arc-shaped seat are constituted, and described arc tool rest is provided with installing hole on riser, and the riser of arc tool rest is arranged on cutterhead by fasteners through mounting holes.
The arc-shaped seat at the top of described arc tool rest is fixed with 4～8 milling heads, arc tool rest is fixedly arranged in the middle of center milling head, curved knife seat is positioned at milling head front portion, center and is evenly equipped with the oblique milling head that Milling Centre axis is arranged towards left side, rear portion is evenly equipped with the oblique milling head that Milling Centre axis is right, or curved knife seat is positioned at the front portion of center milling head and is evenly equipped with the oblique milling head that Milling Centre axis is arranged towards right side, rear portion is evenly equipped with the oblique milling head that Milling Centre axis is arranged towards left side, and the angle between Milling Centre axis and Milling Centre axis and the cutterhead radial central planes of oblique milling head is at 15～40 °.
The upper and lower of described frame is equipped with fixing guide pillar seat and movable guide pillar seat, movable guide pillar seat is by securing member installation frame, fixing guide pillar seat is welded in frame, fixing guide pillar seat and movable guide pillar seat are provided with guide pillar hole, and guide pillar is arranged in the guide pillar hole of respective fixing guide pillar seat and movable guide pillar seat.
The upper and lower of described connection main body is provided with 2～3 guide pin bushings vertically, and each guide pin bushing is sleeved on guide pillar.
Described frame lower is provided with wheel carrier, is arranged on wheel carrier with road wheel.
Described cutter cover is additionally provided with reinforcement gusset with being connected between main body.
Driving-type road surface slotting machine of the present invention uses self-walking apparatus and grooving apparatus, drives grooving apparatus to move ahead and operation of slotting continuously by self-walking apparatus, can improve working performance.The grooving apparatus of the present invention includes frame, be connected in frame cutterhead frame and milling mechanism, frame is hinged with the lift arm of self-walking apparatus by working cylinder, grooving apparatus is driven to rotate along its pin joint by the stretching motion of working cylinder, make the milling mechanism being connected to cutterhead frame along this hinged center axis thereof, make the cutterhead in cutterhead frame enter the duty of fluting.The present invention can be by working cylinder and be arranged on the position-limited wheel at cutterhead frame rear portion and can conveniently carry out the regulation of groove depth, and regulate cutterhead lateral attitude by the lateral adjustments cylinder between frame and cutterhead frame, structure is simple, compact, position and the degree of depth of fluting are controlled, easy to operate, applied widely.Hydraulic motor is directly installed on cutter cover by the present invention, and cutterhead is arranged on the output shaft of hydraulic motor, rotated by hydraulic motor milling cutter and the operation that carries out slotting, cutter cover covers on cutterhead simultaneously, the crumb guiding pipe that concrete block or stone can pass through on cutter cover when fluting is discharged, and effectively improves working environment.The milling cutter of the present invention uses the removable arc tool rest being arranged on cutterhead of more than four, and on each arc tool rest, it is fixed with the milling head of more than three, therefore in fluting operation, when one of them milling head damages, this arc tool rest can be individually replaced, because without changing whole cutterhead, so working service cost can be greatly lowered, there is preferable maintainability.The top of the milling head arcuately tool rest of the present invention is fixed, and each arc tool rest includes a center milling head and multiple oblique milling head, can be slotted by the milling head that multiple Milling Centres are different, not only cutterhead uniform force, and road pavement structural damage also can be down to minimum by the different milling head of multiple Milling Centre, and reduce natural environment influence, excavate total earth volume and controlled and backfill total earth volume to obtain controlling and the discharge of low stain thing.The present invention carries out the regulation of groove depth by working cylinder and position-limited wheel, can be adjusted by the Milling Centre of oblique milling head simultaneously, and energy cross-notching width is adjusted, can realize groove depth 300～600mm, groove width 40～120mm the fluting operation of optical cable groove.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of driving-type road surface slotting machine of the present invention.
Fig. 2 is the structural representation of grooving apparatus of the present invention.
Fig. 3 is the sectional structure schematic diagram of the A-A of Fig. 2.
Fig. 4 is the structural representation of milling head of the present invention.
Wherein: 1 self-walking apparatus, 1-1 lift arm, 2 frames, 2-1 lifts arm seat, 2-2 pivoting support, 2-3 activity guide pillar seat, 2-4 fixes guide pillar seat, 3 guide pillars, 4 cutterhead frames, 4-1 connects main body, 4-11 guide pin bushing, 4-2 cutter cover, 4-3 Position limiting wheel frame, 4-4 strengthens gusset, 5 crumb guiding pipes, 6 position-limited wheels, 7 load lifting cylinders, 8 working cylinders, 9 wheel carriers, 10 with road wheel, 11 cutterheads, 12 arc tool rests, 12-1 arc-shaped seat, 12-2 riser, 13 milling heads, 13-1 center milling head, 13-2 oblique milling head, 14 lateral adjustments cylinders, 15 hydraulic motors, 15-1 output shaft.
Detailed description of the invention
As shown in Figure 1, the driving-type road surface slotting machine of the present invention includes self-walking apparatus 1 and grooving apparatus, two lift arm 1-1 it are hinged with on self-walking apparatus 1, lift arm 1-1 can be hinged on the both sides of self-walking apparatus 1, lift arm 1-1 is connected with grooving apparatus, and the load lifting cylinder 7 being arranged on self-walking apparatus 1 is hinged on the middle part of lift arm 1-1, by the contractile motion of load lifting cylinder 7, make lift arm 1-1 drive grooving apparatus to move up and down, grooving apparatus can be placed on ground location or transporting position.The traverse gear of the present invention is existing car tractor or the crawler tractor of taking turns, or other type of motor vehicles.
As shown in Fig. 1～3, the grooving apparatus of the present invention includes frame 2, cutterhead frame 4 and milling mechanism, the front portion of frame 2 is provided with pivoting support 2-2 and lifting arm seat 2-1, it is hinged on bottom lift arm 1-1 on lifting arm seat 2-1, one end of working cylinder 8 is hinged on the bottom of lift arm 1-1, the other end is hinged on the pivoting support 2-2 of frame 2, stretching motion by workpiece cylinder, frame 2 band movable knife disc frame 4 is made to make cutterhead 11 along the hinged center rotating of its pivoting support 2-2, to control the degree of depth of excavation groove, load lifting cylinder 7 and the working cylinder 8 of the present invention can use oil cylinder or cylinder.As shown in 1, frame 2 bottom of the present invention is provided with wheel carrier 9, is arranged on wheel carrier 9 with road wheel 10, when grooving apparatus is placed on the ground, under self-walking apparatus 1 drives, grooving apparatus can be made to tow with car.As shown in Fig. 1～4, frame 2 of the present invention is provided with the lateral adjustments cylinder 14 for controlling cutterhead frame 4 transverse shifting and for the guide pillar 3 that cutterhead frame 4 transverse shifting is guided.
As shown in Fig. 1～3, the cutterhead frame 4 of the present invention includes that connection main body 4-1 for being connected with frame 2 and being fixed on connects in main body 4-1 and the cutter cover 4-2 of semicircular in shape of lower openings, the guide pin bushing 4-11 connected in main body 4-1 is sleeved on guide pillar 3, the end of lateral adjustments cylinder 14 connects with being connected main body 4-1, as shown in Figure 3, one end of the lateral adjustments cylinder 14 of the present invention is connected on the cylinder seat of frame 2, the other end connects with the hinged seat in connection main body 4-1 of cutterhead frame 4, convenient installation lateral adjustments cylinder 14.As shown in Figure 3, frame 2 upper and lower of the present invention is provided with fixing guide pillar seat 2-4 and movable guide pillar seat 2-3, movable guide pillar seat 2-3 is by securing member installation frame 2, fixing guide pillar seat 2-4 is welded in frame 2, fixing guide pillar seat 2-4 and movable guide pillar seat 2-3 is provided with guide pillar hole, the guide pillar 3 on top and bottom guide pillar 3 are arranged in the guide pillar hole of respective fixing guide pillar seat 2-4 and movable guide pillar seat 2-3, and side changes guide pillar 3.As shown in Figure 3, the present invention connects the upper and lower of main body 4-1 and is provided with 2～3 guide pin bushing 4-11, each guide pin bushing 4-11 vertically and is sleeved on guide pillar 3, makes cutterhead frame 4 can move horizontally smoothly along guide pillar 3.
As shown in Fig. 1～3, on cutter cover 4-2 of the present invention, milling mechanism is installed, cutter cover 4-2 covers at the cutterhead 11 of milling mechanism, cutter cover 4-2 is positioned at the left plate of bits side and right plate is provided with crumb mouth, left plate and right plate are provided with crumb guiding pipe 5 in crumb mouth, under cutter covers on the drive of working cylinder, when being in fluting job position, this crumb guiding pipe 5 is down-set, in time the concrete block in groove or stone can be discharged by crumb guiding pipe, can not only effectively improve working environment, and be also convenient for the landfill work in later stage.The present invention is to improve the bonding strength of cutter cover 4-2, cutter cover 4-2 is additionally provided with reinforcement gusset 4-4 with being connected between main body 4-1, the present invention is provided with Position limiting wheel frame 4-3 at the rear portion of cutter cover 4-2, position-limited wheel 6 is arranged on Position limiting wheel frame 4-3, can conveniently be regulated the milling degree of depth of cutterhead 11 by working cylinder 8 and position-limited wheel 6, meet the groove requirement of different groove depth.
As shown in Fig. 1～3, milling mechanism of the present invention includes hydraulic motor 15, cutterhead 11 and milling cutter, hydraulic motor 15 is arranged on cutter cover 4-2, and its output shaft 15-1 is arranged in cutter cover 4-2, discoidal cutterhead 11 is arranged on the output shaft 15-1 of hydraulic motor 15, the present invention is to improve reliability and the maintainability of hydraulic motor 15, the output shaft 15-1 of hydraulic motor 15 is provided with ring flange, on the ring flange of the output shaft 15-1 that cutter cover 4-2 is arranged on by securing member, drive cutterhead 11 to rotate by hydraulic motor 15 and carry out operation of slotting.
Such as Fig. 3, shown in 4, milling cutter of the present invention includes four arc tool rests 12 being arranged on cutterhead 11 above by securing member and is fixed on the milling 13 of more than three on each arc tool rest 12, the arc-shaped seat 12-1 at each milling 13 arcuately tool rest 12 top is fixedly installed, each milling 13 can uniform be welded on arc-shaped seat 12-1, the present invention uses dismountable arc tool rest 12, after milling 13 on an arc tool rest 12 wherein damages, only need to change this arc tool rest 12, and working service cost can be reduced.
See Fig. 1, 2, shown in 4, milling 13 on arc tool rest 12 of the present invention includes at least one center milling head 13-1 and the tilting oblique milling head 13-2 of two or more, the Milling Centre axis of center milling head 13-1 is parallel with cutterhead 11 radial central planes, tiltedly angle≤60 ° between Milling Centre axis and cutterhead 11 radial central planes of milling head 13-2, and the Milling Centre axis of oblique milling head 13-2 is towards left side or/and right side is arranged, milling 13 by multiple different Milling Centres, during cutterhead 11 rotary milling drum road surface, not only cutterhead 11 uniform force, and can road pavement structural deterioration be down to minimum.The arc tool rest 12 of the present invention has 6～10, as arc tool rest 12 uses 8, arc tool rest 12 is fixedly arranged in the middle of center milling head 13-1, and arc tool rest 12 is positioned at that the front portion of center milling head 13-1 is evenly equipped with oblique milling head 13-2 that Milling Centre axis arranges towards left side, rear portion is evenly equipped with the oblique milling head 13-2 that Milling Centre axis is arranged towards right side；Or the arc tool rest 12 of the present invention front portion that is positioned at center milling head 13-1 is evenly equipped with oblique milling head 13-2 that Milling Centre axis arranges towards right side, rear portion is evenly equipped with the oblique milling head 13-2 that Milling Centre axis is arranged towards left side, and tiltedly angle between milling head 13-2 and Milling Centre axis and cutterhead 11 radial central planes at 15～40 °, if this angle is at 30 ° or 35 °, by controlling this angle, the groove width of groove can be controlled.As shown in Figure 4, arc tool rest 12 of the present invention includes the L-shaped structure that riser 12-2 and arc-shaped seat 12-1 is constituted, arc tool rest 12 is provided with installing hole on riser 12-2, and the riser 12-2 of arc tool rest 12 is arranged on cutterhead 11 by fasteners through mounting holes, and mounting or dismounting arc tool rest 12 is efficient and convenient.
Claims (8)
1. a driving-type road surface slotting machine, it is characterized in that: include self-walking apparatus (1) and grooving apparatus, being hinged with two lift arms (1-1) on self-walking apparatus (1), the load lifting cylinder (7) being arranged on self-walking apparatus (1) is hinged on the middle part of lift arm (1-1)；Described grooving apparatus includes frame (2), cutterhead frame (4) and milling mechanism, the front portion of frame (2) is provided with pivoting support (2-2) and lifting arm seat (2-1), and lift arm (1-1) bottom is hinged in lifting arm seat (2-1), one end of working cylinder (8) is hinged on the bottom of lift arm (1-1), the other end is hinged on the pivoting support (2-2) of frame (2), lateral adjustments cylinder (14) for controlling cutterhead frame (4) transverse shifting is installed and for the guide pillar (3) that cutterhead frame (4) transverse shifting is guided in frame (2)；
Described cutterhead frame (4) includes the connection main body (4-1) for being connected with frame (2) and is fixed in connection main body (4-1) and the semicircular cutter cover (4-2) of lower openings, the guide pin bushing (4-11) connected in main body (4-1) is sleeved on guide pillar (3), the end of lateral adjustments cylinder (14) connects with being connected main body (4-1), on cutter cover (4-2), milling mechanism is installed, cutter cover (4-2) covers on cutterhead (11) place of milling mechanism, cutter cover (4-2) is positioned at the left plate of bits side and right plate is provided with crumb mouth, left plate and right plate are provided with crumb guiding pipe (5) at crumb mouth, described cutter cover (4-2) afterbody has Position limiting wheel frame (4-3), position-limited wheel (6) is arranged on Position limiting wheel frame (4-3)；
Described milling mechanism includes hydraulic motor (15), cutterhead (11) and milling cutter, hydraulic motor (15) is arranged on cutter cover (4-2), discoidal cutterhead (11) is arranged on the output shaft (15-1) of hydraulic motor (15), described milling cutter includes four arc tool rests (12) being arranged on cutterhead (11) above by securing member and is fixed on the milling head (13) of each arc tool rest more than (12) three, and the arc-shaped seat (12-1) at each milling head (13) arcuately tool rest (12) top is fixedly installed.
Driving-type road surface slotting machine the most according to claim 1, it is characterized in that: the milling head (13) on described arc tool rest (12) includes at least one center milling head (13-1) and the tilting oblique milling head (13-2) of two or more, the Milling Centre axis of described center milling head (13-1) is parallel with cutterhead (11) radial central planes, tiltedly angle≤60 ° between Milling Centre axis and cutterhead (11) radial central planes of milling head (13-2), and the Milling Centre axis of oblique milling head (13-2) is towards left side or/and right side is arranged.
Driving-type road surface slotting machine the most according to claim 1 and 2, it is characterized in that: described arc tool rest (12) has 6～10, arc tool rest (12) includes the L-shaped structure that riser (12-2) and arc-shaped seat (12-1) are constituted, described arc tool rest (12) is provided with installing hole on riser (12-2), and the riser (12-2) of arc tool rest (12) is arranged on cutterhead (11) by fasteners through mounting holes.
nullDriving-type road surface slotting machine the most according to claim 1 and 2，It is characterized in that: the arc-shaped seat (12-1) at the top of described arc tool rest (12) is fixed with 4～8 milling heads (13)，Arc tool rest (12) is fixedly arranged in the middle of center milling head (13-1)，Arc tool rest (12) is positioned at center milling head (13-1) front portion and is evenly equipped with the oblique milling head (13-2) that Milling Centre axis is arranged towards left side、Rear portion is evenly equipped with the oblique milling head (13-2) that Milling Centre axis is right，Or arc tool rest (12) is positioned at the front portion of center milling head (13-1) and is evenly equipped with the oblique milling head (13-2) that Milling Centre axis is arranged towards right side、Rear portion is evenly equipped with the oblique milling head (13-2) that Milling Centre axis is arranged towards left side，And the angle between Milling Centre axis and Milling Centre axis and cutterhead (11) radial central planes of oblique milling head (13-2) is at 15～40 °.
Driving-type road surface slotting machine the most according to claim 1, it is characterized in that: the upper and lower of described frame (2) is equipped with fixing guide pillar seat (2-4) and movable guide pillar seat (2-3), movable guide pillar seat (2-3) is by securing member installation frame (2), fixing guide pillar seat (2-4) is welded in frame (2), fixing guide pillar seat (2-4) and movable guide pillar seat (2-3) are provided with guide pillar hole, and guide pillar (3) is arranged in the guide pillar hole of respective fixing guide pillar seat (2-4) and movable guide pillar seat (2-3).
Driving-type road surface slotting machine the most according to claim 1 or 5, it is characterized in that: the upper and lower of described connection main body (4-1) is provided with 2～3 guide pin bushings (4-11) vertically, each guide pin bushing (4-11) is sleeved on guide pillar (3).
Driving-type road surface slotting machine the most according to claim 1, it is characterised in that: described frame (2) bottom is provided with wheel carrier (9), is arranged on wheel carrier (9) with road wheel (10).
Driving-type road surface slotting machine the most according to claim 1, it is characterised in that: described cutter cover (4-2) is additionally provided with reinforcement gusset (4-4) with being connected between main body (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009123.6A CN105821746B (en) | 2015-01-08 | 2015-01-08 | Driving-type road surface slotting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009123.6A CN105821746B (en) | 2015-01-08 | 2015-01-08 | Driving-type road surface slotting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105821746A true CN105821746A (en) | 2016-08-03 |
| CN105821746B CN105821746B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510009123.6A Expired - Fee Related CN105821746B (en) | 2015-01-08 | 2015-01-08 | Driving-type road surface slotting machine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620719Y (en) * | 2003-06-18 | 2004-06-16 | 河南省高远公路养护技术有限公司 | Asphalt road surface lateral milling and planing machine |
| CN2876159Y (en) * | 2005-09-05 | 2007-03-07 | 周夏英 | Kerf machine |
| CN201089878Y (en) * | 2007-09-25 | 2008-07-23 | 济南运达工程机械公司 | Dragging type machine for generating sheet pavement deceleration strip |
| CN201209234Y (en) * | 2008-06-06 | 2009-03-18 | 邢台市政建设集团有限公司 | Ragging and joint-cutting dual-purpose machine for concrete pavement |
| CN202509387U (en) * | 2012-02-23 | 2012-10-31 | 常州杰和机械有限公司 | Hydraulically-controlled self-propelled pavement cutting machine |
| CN204435189U (en) * | 2015-01-08 | 2015-07-01 | 常州杰和机械有限公司 | Driving-type road surface slotting machine |
-
2015
- 2015-01-08 CN CN201510009123.6A patent/CN105821746B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2620719Y (en) * | 2003-06-18 | 2004-06-16 | 河南省高远公路养护技术有限公司 | Asphalt road surface lateral milling and planing machine |
| CN2876159Y (en) * | 2005-09-05 | 2007-03-07 | 周夏英 | Kerf machine |
| CN201089878Y (en) * | 2007-09-25 | 2008-07-23 | 济南运达工程机械公司 | Dragging type machine for generating sheet pavement deceleration strip |
| CN201209234Y (en) * | 2008-06-06 | 2009-03-18 | 邢台市政建设集团有限公司 | Ragging and joint-cutting dual-purpose machine for concrete pavement |
| CN202509387U (en) * | 2012-02-23 | 2012-10-31 | 常州杰和机械有限公司 | Hydraulically-controlled self-propelled pavement cutting machine |
| CN204435189U (en) * | 2015-01-08 | 2015-07-01 | 常州杰和机械有限公司 | Driving-type road surface slotting machine |
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| CN105821746B (en) | 2017-11-14 |
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Granted publication date: 20171114 Termination date: 20190108 |
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