CN107989094A - A kind of cable laying ditch constructing device - Google Patents
A kind of cable laying ditch constructing device Download PDFInfo
- Publication number
- CN107989094A CN107989094A CN201711424580.7A CN201711424580A CN107989094A CN 107989094 A CN107989094 A CN 107989094A CN 201711424580 A CN201711424580 A CN 201711424580A CN 107989094 A CN107989094 A CN 107989094A
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- CN
- China
- Prior art keywords
- shell body
- driving
- wheel
- grooving
- hydraulic pressure
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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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/06—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging elements mounted on an endless chain
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of cable laying ditch constructing device,Including shell body,It is arranged at the grooving device of the shell body interior forward end,The grooving driving device being arranged on the left of the shell body Internal back end,It is symmetrically disposed on the advance wheel apparatus of the shell body both sides,The grooving device includes the hydraulic press for being arranged at the shell body upper front end,The hydraulic press is embedded in inside the shell body,The hydraulic press lower end is provided with hydraulic cylinder device,The hydraulic cylinder device includes hydraulic pressure outer shell and hydraulic pressure inner prop,The hydraulic pressure outer shell upper end is connected with the hydraulic press,The hydraulic pressure inner prop side wall is slidably connected with the outer inside wall of cylinder of the hydraulic pressure,Carrying out the excacation of cable laying ditch using the present apparatus, not only digging efficiency is high,Save a large amount of labours,The time of construction is greatly shortened at the same time,Reduce construction to inconvenient caused by traffic etc..
Description
Technical field
The present invention relates to cable laying engineering device technique field, is specifically a kind of cable laying ditch constructing device.
Background technology
China's national grid all spends the update work of substantial contribution progress city cable every year, in many cities
Portion, due to the foundation of the infrastructure such as a large amount of high buildings, overhead, occupies the space that overground cable is laid with, and overground cable is spread
If there is also certain peace circle security risk, therefore, many cities in China all gradually eliminate pylon and use the ground of cable
Lower laying, the excacation of conventional cable duct are carried out by manpower, and this form of construction work not only needs substantial amounts of manpower to spend
Take the substantial amounts of time, and the cable duct quality that manpower is excavated can not preferably be ensured, and carried out in city
The excacation of buried cable ditch often means that the construction in the section is restricted driving, the today especially spread unchecked in private car, cable
The traffic for having seriously affected construction section is laid with, therefore, design is a kind of efficiently useful, can replace manually carrying out cable duct digging
Work is dug to reduce the construction time, and the device for saving a large amount of labours is necessary.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of cable laying ditch constructing device, it can solve above-mentioned
Now in the art the problem of.
The present invention is achieved through the following technical solutions：A kind of cable laying ditch constructing device of the present invention, bag
Include shell body, be arranged at the grooving device of the shell body interior forward end, the digging being arranged on the left of the shell body Internal back end
Groove driving device, the advance wheel apparatus for being symmetrically disposed on the shell body both sides, the grooving device include being arranged at described outer
The hydraulic press on housing forward end top, the hydraulic press are embedded in inside the shell body, and the hydraulic press lower end is provided with hydraulic pressure
Cylinder assembly, the hydraulic cylinder device include hydraulic pressure outer shell and hydraulic pressure inner prop, and the hydraulic pressure outer shell upper end is connected with the hydraulic press,
The hydraulic pressure inner prop side wall is slidably connected with the outer inside wall of cylinder of the hydraulic pressure, is offered inside the shell body front end flexible
Groove, elevator is provided with the telescopic chute, and the elevator is slidably connected with the telescopic chute, the elevator upper end
It is connected with the hydraulic pressure inner prop lower end secure fit, the cavity of perforation before and after the elevator is internally provided with, in the cavity
Driven wheel is provided with, follower shaft is provided with the driven wheel center, the follower shaft both ends are forwarded using follower shaft
Dynamic to be connected in the wall of the cavity left and right ends, the shell body rear interior offers turn communicated with the telescopic chute
Dynamic chamber, described rotate in chamber are provided with driving wheel, drive sprocket axle, the drive sprocket axle right end are provided with the driving wheel center
It is rotatably assorted and is connected in the rotation chamber right end wall using drive wheel bearing, winding between the driving wheel and the driven wheel
There is grooving crawler belt, the grooving driving device includes the driving motor being arranged in the shell body above the rotation chamber,
Driving chamber is provided with the left of the driving motor, is connected on the right side of the driving chamber with the rotation chamber, the drive sprocket axle is left
End is rotatably assorted using drive wheel bearing to be connected in the rotation chamber left end wall, and the driving chamber upper end is provided with drive shaft,
The drive shaft right end is connected with the driving motor power, between the drive shaft left end and the driving chamber left end wall
The connection that is rotatably assorted is formed using driving bearing, drive belt is arranged between the drive shaft and the drive sprocket axle, it is described
The heat emission hole connected outside the shell body is provided with the right side of driving motor, the driving outer surface of motor is fixedly installed heat dissipation
Device.
As preferable technical solution, the advance wheel apparatus includes pedestal, the pedestal upper end with outside the shell body
The connection of portion side secure fit, is rotatably assorted in the middle part of the pedestal and is connected with hydraulically extensible column, the hydraulically extensible column with it is described
Hydraulic press is connected using hydraulic oil pipe, and the hydraulically extensible column includes external extension column and interior telescopic mast, and the pedestal lower end is set
There is support column, the support column upper end forms to be rotatably assorted and is connected with the pedestal lower end using hinge, the support column lower end
Formed to be rotatably assorted using hinge with the interior telescopic mast close to shell body side and be connected, the support column lower end is away from described outer
Housing side is provided with balance plate, the rear and front end of the balance plate lateral surface it is symmetrical and rotatably arranged with have feeder wheel and after
Into wheel, leading truck is arranged between the feeder wheel and the laggard wheel, is provided with the balance plate and the feeder wheel
The preceding stepper motor of power connector, the leading truck outside are provided with mud guard, and the mud guard is fixed with the support column to be connected
Connect.
As preferable technical solution, steel toe is evenly distributed with the grooving track outer surface, the steel toe is circular cone
Shape, the steel toe big end are fixedly connected with the grooving crawler belt.
As preferable technical solution, the radiator includes being fixedly connected and being uniformly distributed with the driving outer surface of motor
Radiating fin, the radiating fin is provided with more than four pieces, radiator fan is fixedly installed on the radiating fin.
As preferable technical solution, described four angular positions in shell body upper surface are respectively arranged with warning lamp.
The beneficial effects of the invention are as follows：The overall structure of the present invention is simple, safe and reliable to operation, easy to use, when this dress
Put when being in cable duct excacation, the work of driving motor drives drive belt rotation by drive shaft, drive belt rotate into
And driving driving wheel to rotate, driving wheel rotates and then drives grooving crawler belt to rotate, meanwhile, control hydraulic press work, so as to drive
Hydraulic cylinder device works, and hydraulic pressure inner prop gradually stretches out hydraulic pressure outer shell at this time, so as to promote elevator to push by hydraulic pressure inner prop, rises
Drop block pushes and then promotes driven wheel to move down, and driven wheel moves down and then drives grooving crawler belt front end to push and be gradually pressed into ground
In, ground soil is excavated, controls hydraulic cylinder device to stop work after grooving crawler belt is pressed into the depth needed in ground
Make, stepper motor works before then controlling, and preceding stepper motor work drives the present apparatus to advance, and grooving crawler belt is constantly by ground soil at this time
Excavate, and then form continuous and consistent width depth cable laying raceway groove, meanwhile, the work of hydraulically extensible column can adjust interior stretch
Contracting column stretches out the length outside external extension column and then the height of adjustable shell body support, so as to ensure that shell body advances steady
Property, carrying out the excacation of cable laying ditch using the present apparatus, not only digging efficiency is high, saves a large amount of labours, while significantly
The time for shortening construction, reduce construction to inconvenient caused by traffic etc..
Brief description of the drawings
For ease of explanation, the present invention is described in detail by following specific embodiment and attached drawing.
Fig. 1 is a kind of cable laying ditch constructing device front end internal structure schematic diagram of the present invention；
Fig. 2 is a kind of cable laying ditch constructing device left view internal structure schematic diagram of the present invention；
Fig. 3 is a kind of cable laying ditch constructing device rear end internal structure schematic diagram of the present invention；
Fig. 4 is a kind of overlooking the structure diagram of cable laying ditch constructing device of the present invention；
Fig. 5 is the structure diagram of the advance wheel apparatus of the present invention；
Fig. 6 is the feeder wheel of the present invention and the structure diagram of laggard wheel installation.
Embodiment
As shown in figs 1 to 6, a kind of cable laying ditch constructing device of the invention, including shell body 11, it is arranged at institute
State the grooving device of 11 interior forward end of shell body, the grooving driving device being arranged on the left of 11 Internal back end of shell body, right
Claim the advance wheel apparatus 21 for being arranged at 11 both sides of shell body, the grooving device includes being arranged at 11 front end of shell body
The hydraulic press 31 on top, the hydraulic press 31 are embedded in inside the shell body 11, and 31 lower end of hydraulic press is provided with hydraulic pressure
Cylinder assembly, the hydraulic cylinder device include hydraulic pressure outer shell 32 and hydraulic pressure inner prop 33,32 upper end of hydraulic pressure outer shell and the hydraulic pressure
Machine 31 connects, and 33 side wall of hydraulic pressure inner prop is slidably connected with 32 inner wall of hydraulic pressure outer shell, 11 front end of shell body
Inside offers telescopic chute 61, and elevator 12 is provided with the telescopic chute 61, and the elevator 12 is slided with the telescopic chute 61
Dynamic to be connected, 12 upper end of elevator is connected with the 33 lower end secure fit of hydraulic pressure inner prop, inside the elevator 12
Be provided with the cavity 63 of front and rear perforation, driven wheel 45 be provided with the cavity 63, be provided with 45 center of driven wheel from
The axis of a movable block 44,44 both ends of follower shaft are rotatably assorted using driven wheel bearing 41 is connected to the 63 left and right ends wall of cavity
In, 11 rear interior of shell body offers the rotation chamber 62 communicated with the telescopic chute 61, is set in the rotation chamber 62
There is driving wheel 49, drive sprocket axle 48 is provided with 49 center of driving wheel, 48 right end of drive sprocket axle uses drive sprocket axle
Hold 521 be rotatably assorted be connected to it is described rotation 62 right end wall of chamber in, be arranged between the driving wheel 49 and the driven wheel 45
Grooving crawler belt 42, the grooving driving device include the driving electricity being arranged in the shell body 11 of 62 top of rotation chamber
Machine 55,55 left side of driving motor are provided with driving chamber 64, and the right side of driving chamber 64 is connected with the rotation chamber 62, institute
State 48 left end of drive sprocket axle be rotatably assorted using drive wheel bearing 521 be connected to it is described rotation 62 left end wall of chamber in, the driving
64 upper end of chamber is provided with drive shaft 54, and 54 right end of drive shaft is connected with 55 power of the driving motor, the driving
Formed and be rotatably assorted connection using driving bearing 53 between 64 left end wall of 54 left end of axis and the driving chamber, the drive shaft 54 and
Drive belt 52 is arranged between the drive sprocket axle 48, the driving motor 55 drives the master by the drive belt 52
Driving wheel 49 rotates, and then drives the grooving crawler belt 42 to rotate, and 55 right side of driving motor is provided with the connection shell body
Heat emission hole 553 outside 11,55 outer surface of the driving motor are fixedly installed radiator.
Valuably, the advance wheel apparatus 21 includes pedestal 211,211 upper end of pedestal with outside the shell body 11
The connection of side secure fit, the middle part of pedestal 211, which is rotatably assorted, is connected with hydraulically extensible column, the hydraulically extensible column with it is described
Hydraulic press 31 is connected using hydraulic oil pipe, and the hydraulically extensible column includes external extension column 217 and interior telescopic mast 216, the pedestal
211 lower ends are provided with support column 212, and 212 upper end of support column is formed using hinge with 211 lower end of pedestal and is rotatably assorted
Connection, 212 lower end of support column form the company of being rotatably assorted close to 11 side of shell body and the interior telescopic mast 216 using hinge
Connect, 212 lower end of support column is provided with balance plate 219 away from 11 side of shell body, 219 lateral surface of balance plate
Rear and front end is symmetrical and rotatably arranged with having feeder wheel 215 and laggard wheel 2151, the feeder wheel 215 and the laggard wheel
Leading truck 214 is arranged between 2151, the advance with 215 power connector of feeder wheel is provided with the balance plate 219
Motor 218, the feeder wheel 215 is independently driven using the preceding stepper motor 218 and then drives the shell body 11 to move, described
The outside of leading truck 214 is provided with mud guard 213, and the mud guard 213 is fixedly connected with the support column 212, the gear mud
Plate 213 can play a protective role the feeder wheel 215, laggard wheel 2151 and leading truck 214.
Valuably, be evenly distributed with steel toe 43 on 42 outer surface of grooving crawler belt, the steel toe 43 be it is coniform, it is described
43 big end of steel toe is fixedly connected with the grooving crawler belt 42, by groove when the steel toe 43 can help to 42 grooving of grooving crawler belt
Middle soil is pushed aside and takes part soil out of.
Valuably, shell body 11 upper surface four angular position is respectively arranged with warning lamp 71, the warning lamp 71
Work when the present apparatus works, nearby personnel avoid in time for warning.
Valuably, the radiator includes being fixedly connected with driving motor 55 outer surface and equally distributed heat dissipation
Fin 551, the radiating fin 551 are provided with more than four pieces, radiator fan 552 are fixedly installed on the radiating fin 551,
By the heat absorption for driving motor 55 operationally to produce and dissipated by the radiating fin 551, dissipated by described
Hot-air fan 552 can increase the efficiency that the radiating fin 551 radiates, described to drive the heat that motor 55 produces from the heat emission hole
553 discharges.
During original state, the hydraulic press 31 is in stop working state, and the hydraulic pressure inner prop 33 is retracted in the hydraulic pressure
In outer shell 32,12 top end face of elevator is in 61 top end wall of telescopic chute and abuts state, the driving wheel 49 and institute
State driven wheel 45 and be in sustained height, the driving motor 55 and the preceding stepper motor 218 are in stop working state, the liquid
Pressure telescopic mast is in extended configuration, so that the feeder wheel 215 and laggard wheel 2151 are parallel with the shell body 11, so that
The shell body 11 is propped up, and the grooving crawler belt 42 is not contacted with ground.
When the present apparatus is in cable duct excacation, the driving motor 55 works, and the driving motor 55 is logical at this time
Crossing the drive shaft 54 drives the drive belt 52 to rotate, and the drive belt 52 rotates and then drives 49 turns of the driving wheel
Dynamic, the driving wheel 49 rotates and then drives the grooving crawler belt 42 to rotate, meanwhile, control hydraulic press 31 works, so as to drive
The hydraulic cylinder device work, the hydraulic pressure inner prop 33 gradually stretches out the hydraulic pressure outer shell 32 at this time, so as to pass through the hydraulic pressure
Inner prop 33 promotes the elevator 12 to push, and the elevator 12 pushes and then promotes the driven wheel 45 to move down, described driven
Wheel 45 moves down and then drives 42 front end of grooving crawler belt to push and be gradually pressed into ground, and ground soil is excavated, when
The grooving crawler belt 42 controls the hydraulic cylinder device to be stopped after being pressed into the depth needed in ground, before then controlling
Stepper motor 218 works, and the preceding work of stepper motor 218 drives the present apparatus to advance, and the grooving crawler belt 42 is constantly by ground at this time
Soil excavates, and then forms continuous and consistent width depth cable laying raceway groove, meanwhile, the hydraulically extensible column work,
It can adjust the length that the interior telescopic mast 216 is stretched out outside the external extension column 217 and then can adjust what the shell body 11 supported
Highly, so as to ensure the stationarity that the shell body 11 advances.
The beneficial effects of the invention are as follows：The overall structure of the present invention is simple, safe and reliable to operation, easy to use, when this dress
Put when being in cable duct excacation, the work of driving motor drives drive belt rotation by drive shaft, drive belt rotate into
And driving driving wheel to rotate, driving wheel rotates and then drives grooving crawler belt to rotate, meanwhile, control hydraulic press work, so as to drive
Hydraulic cylinder device works, and hydraulic pressure inner prop gradually stretches out hydraulic pressure outer shell at this time, so as to promote elevator to push by hydraulic pressure inner prop, rises
Drop block pushes and then promotes driven wheel to move down, and driven wheel moves down and then drives grooving crawler belt front end to push and be gradually pressed into ground
In, ground soil is excavated, controls hydraulic cylinder device to stop work after grooving crawler belt is pressed into the depth needed in ground
Make, stepper motor works before then controlling, and preceding stepper motor work drives the present apparatus to advance, and grooving crawler belt is constantly by ground soil at this time
Excavate, and then form continuous and consistent width depth cable laying raceway groove, meanwhile, the work of hydraulically extensible column can adjust interior stretch
Contracting column stretches out the length outside external extension column and then the height of adjustable shell body support, so as to ensure that shell body advances steady
Property, carrying out the excacation of cable laying ditch using the present apparatus, not only digging efficiency is high, saves a large amount of labours, while significantly
The time for shortening construction, reduce construction to inconvenient caused by traffic etc..
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, it is of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (5)
1. a kind of cable laying ditch constructing device, including shell body, be arranged at the shell body interior forward end grooving device,
It is arranged at the grooving driving device on the left of the shell body Internal back end, is symmetrically disposed on the feeder wheel dress of the shell body both sides
Put, it is characterised in that：The grooving device includes the hydraulic press for being arranged at the shell body upper front end, and the hydraulic press is inlayed
Inside the shell body, the hydraulic press lower end is provided with hydraulic cylinder device, the hydraulic cylinder device include hydraulic pressure outer shell and
Hydraulic pressure inner prop, the hydraulic pressure outer shell upper end are connected with the hydraulic press, the hydraulic pressure inner prop side wall and the outer inside wall of cylinder of the hydraulic pressure
It is slidably connected, offers telescopic chute inside the shell body front end, elevator, the lifting are provided with the telescopic chute
Block is slidably connected with the telescopic chute, and the elevator upper end is connected with the hydraulic pressure inner prop lower end secure fit, described
Elevator is internally provided with the cavity of front and rear perforation, is provided with driven wheel in the cavity, is provided with the driven wheel center
Dynamic mating connection is forwarded in the wall of the cavity left and right ends in follower shaft, the follower shaft both ends using follower shaft, institute
State shell body rear interior and offer the rotation chamber communicated with the telescopic chute, driving wheel is provided with the rotation chamber, it is described
Drive sprocket axle is provided with driving wheel center, the drive sprocket axle right end is rotatably assorted using drive wheel bearing is connected to described turn
In dynamic chamber right end wall, grooving crawler belt is arranged between the driving wheel and the driven wheel, the grooving driving device includes setting
The driving motor being placed in the shell body above the rotation chamber, the driving motor left side is provided with driving chamber, described
It is connected on the right side of the driving chamber with the rotation chamber, the drive sprocket axle left end is rotatably assorted using drive wheel bearing to be connected to
In the rotation chamber left end wall, the driving chamber upper end is provided with drive shaft, the drive shaft right end and the driving motor
Power cooperation connects, and the connection that is rotatably assorted is formed using driving bearing between the drive shaft left end and the driving chamber left end wall,
Drive belt is arranged between the drive shaft and the drive sprocket axle, it is described outer to be provided with connection on the right side of the driving motor
The heat emission hole of hull outside, the driving outer surface of motor are fixedly installed radiator.
A kind of 2. cable laying ditch constructing device according to claim 1, it is characterised in that：The advance wheel apparatus bag
Pedestal is included, the pedestal upper end is connected with the shell body exterior lateral sides secure fit, and be rotatably assorted connection in the middle part of the pedestal
There is hydraulically extensible column, the hydraulically extensible column is connected with the hydraulic press using hydraulic oil pipe, and the hydraulically extensible column includes outer
Telescopic mast and interior telescopic mast, the pedestal lower end are provided with support column, and the support column upper end uses hinge with the pedestal lower end
Chain forms the connection that is rotatably assorted, and the support column lower end is formed using hinge close to shell body side and the interior telescopic mast and rotated
It is connected, the support column lower end is provided with balance plate away from the shell body side, the balance plate lateral surface
Rear and front end is symmetrical and rotatably arranged with having feeder wheel and laggard wheel, before being arranged between the feeder wheel and the laggard wheel
Into crawler belt, the preceding stepper motor with the feeder wheel power connector is provided with the balance plate, is set on the outside of the leading truck
There is mud guard, the mud guard is fixedly connected with the support column.
A kind of 3. cable laying ditch constructing device according to claim 1, it is characterised in that：The grooving crawler belt appearance
Steel toe is evenly distributed with face, the steel toe is coniform, and the steel toe big end is fixedly connected with the grooving crawler belt.
A kind of 4. cable laying ditch constructing device according to claim 1, it is characterised in that：The shell body upper surface
Four angular positions are respectively arranged with warning lamp.
A kind of 5. cable laying ditch constructing device according to claim 1, it is characterised in that：The radiator includes
It is fixedly connected with the driving outer surface of motor and equally distributed radiating fin, the radiating fin is provided with more than four pieces,
Radiator fan is fixedly installed on the radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711424580.7A CN107989094A (en) | 2017-12-25 | 2017-12-25 | A kind of cable laying ditch constructing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711424580.7A CN107989094A (en) | 2017-12-25 | 2017-12-25 | A kind of cable laying ditch constructing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107989094A true CN107989094A (en) | 2018-05-04 |
Family
ID=62041496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711424580.7A Withdrawn CN107989094A (en) | 2017-12-25 | 2017-12-25 | A kind of cable laying ditch constructing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107989094A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50139389A (en) * | 1974-04-26 | 1975-11-07 | ||
| CN2646195Y (en) * | 2003-04-30 | 2004-10-06 | 长沙中联重工科技发展股份有限公司 | Pavement milling and planing machine with protective device against roadblock |
| CN204199163U (en) * | 2014-11-05 | 2015-03-11 | 沈海勇 | A kind of highway pavement cutting machine |
| CN205242229U (en) * | 2015-12-04 | 2016-05-18 | 魏玉峰 | Asphalt pavement milling and grooving all -in -one machine |
| CN206034262U (en) * | 2016-08-25 | 2017-03-22 | 唐异茂 | Pavement construction machinery cutting machine |
-
2017
- 2017-12-25 CN CN201711424580.7A patent/CN107989094A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50139389A (en) * | 1974-04-26 | 1975-11-07 | ||
| CN2646195Y (en) * | 2003-04-30 | 2004-10-06 | 长沙中联重工科技发展股份有限公司 | Pavement milling and planing machine with protective device against roadblock |
| CN204199163U (en) * | 2014-11-05 | 2015-03-11 | 沈海勇 | A kind of highway pavement cutting machine |
| CN205242229U (en) * | 2015-12-04 | 2016-05-18 | 魏玉峰 | Asphalt pavement milling and grooving all -in -one machine |
| CN206034262U (en) * | 2016-08-25 | 2017-03-22 | 唐异茂 | Pavement construction machinery cutting machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180504 |