CN108060624A - A kind of asphalt hot-melt unit - Google Patents
A kind of asphalt hot-melt unit Download PDFInfo
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- CN108060624A CN108060624A CN201711297671.9A CN201711297671A CN108060624A CN 108060624 A CN108060624 A CN 108060624A CN 201711297671 A CN201711297671 A CN 201711297671A CN 108060624 A CN108060624 A CN 108060624A
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- device body
- fixedly connected
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- bevel gear
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/08—Apparatus for transporting and heating or melting asphalt, bitumen, tar, or the like
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a kind of asphalt hot-melt unit, driving shaft left end is fixedly connected with incomplete bevel gear, and lower cartridge is fixedly connected with turntable, and disk lower surface is fixedly connected with agitating roller；Sleeve lower end is socketed Step Shaft, wire rod thread connection retainer middle part, retainer fixed connection apparatus body, screw lower end fixed connection and sealing plate, sealing plate edge clamping fixture block, and fixture block is slidably connected guide groove, guide groove fixed connection apparatus inner body wall, sealing plate both sides set diversion pipe.The device is stored electric energy by solar panels provides electric power output in storing up electricity case for power unit, agitating roller rotation is heated evenly, accelerate to melt, and screw causes agitating roller realization to be stirred the pitch of different depth, the tiny venthole that pitch adds thermogenetic smog to be set by upper wall on the right side of device body filters, the harmful substance in flue gas is absorbed by aqueous, so that entering after air themperature rise inside device body in the high temperature aqueous in water tank.
Description
Technical field
The present invention relates to a kind of town road construction machines, are specifically a kind of asphalt hot-melt unit.
Background technology
, it is necessary to be heated at high temperature to solid asphalt raw material, after being allowed to fusing before the work such as asphalt pavement repairing, the cementation of fissures
It could carry out next step use.
Maintenance unit there is no relatively advanced heating unit at present in terms of pitch heating, it is each conserve unit can only use compared with
For simply backward tank barrel type asphalt heater, the device is complicated for operation, it is necessary to carry out firewood heating at the scene, and pitch heats
Not only the time is longer also very inconvenient, and pollution is big, and heated asphalt to fusing needs 4,5 hours, repaiies some maintenance unit such as mornings
Mending road surface or cementation of fissures work needs 4:00 AM to start heated asphalt of sending someone, and significantly increases the labor intensity and fatigue of maintenance worker
Degree.If maintenance sites heat, the time of wait is longer, and road surface vehicle flowrate is huge, and maintenance worker's time on road surface is longer,
Danger coefficient is virtually added, shortening means better Preservation worker in the road surface activity duration.
The content of the invention
It is an object of the invention to provide a kind of asphalt hot-melt unit, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical solution：
A kind of asphalt hot-melt unit, including device body；Described device body is mainly by driving shaft, master gear, Step Shaft, silk
Bar, water tank, snorkel and mica heating plate are formed, and outer wall lower end is fixedly connected with storing up electricity case, storing up electricity case on the left of described device body
Side wall sets charging hole, and storing up electricity case upper end sets solar panels, solar panels upper end rotary connecting device body, in device body
Wall is fixedly connected with mica heating plate；Upper end sets driving motor, driving motor left end rotation connection master on the right side of described device body
Moving axis, driving shaft left end are fixedly connected with incomplete bevel gear, and incomplete bevel gear top and the bottom are respectively provided with bevel gear, and not exclusively cone
Gear toothed portion engagement engagement bevel gear, bevel gear are fixedly connected with sleeve, and sleeve upper shaft holds rotary connecting device body top
Portion, lower cartridge are fixedly connected with turntable, and disk lower surface is fixedly connected with agitating roller；The sleeve lower end is socketed Step Shaft, step
Axis lower end is fixedly connected with screw, and wire rod thread connection retainer middle part, retainer fixed connection apparatus body, screw lower end is fixed
Sealing plate, sealing plate edge clamping fixture block are connected, and fixture block is slidably connected guide groove, in guide groove fixed connection apparatus body
Wall, sealing plate both sides set diversion pipe；The sealing plate lower end setting receiver, receiver fixed connection apparatus inner body wall,
Receiver both sides are in inverted cone-shaped, and vomit pipe, vomit pipe fixed connection apparatus body bottom portion, device body are connected in the middle part of receiver
Both sides lower end is rotatablely connected shifting roller；Exhaust fan is set on the upside of described device body right end, and exhaust fan is fixedly connected with driving shaft
Middle part, device body right side upper wall set tiny venthole, venthole communication seals chamber, annular seal space lower end connection gas-guide tube, dress
It puts body right hand external and water tank, gas-guide tube lower end joining water box bottom, water tank right end top connecting tube is set；Under the water tank
End is fixedly connected with air inlet, and air inlet connection snorkel, snorkel upper end communication apparatus body interior upper end, snorkel lower end is in
Two sections of bendings.
As further embodiment of the present invention：The water tank lower end sets liquid discharging tube, and stopcock is set on liquid discharging tube.
As further scheme of the invention：Connection feed inlet, feed inlet upper end are close above described device body left end
Envelope clamping end cap.
As further scheme of the invention：The Step Shaft surface sets strip boss, and sleeve inner sets strip
Groove.
As further scheme of the invention：The solar panels lower slide connection sliding block, sliding block rotation connection branch
Bar, strut right end sliding connecting device body.
As further scheme of the invention：The diversion pipe top is fixedly connected with Steel net.
As further scheme of the invention：The driving motor, mica heating plate and solar panels are electrically connected
Storing up electricity case and switch.
Compared with prior art, the beneficial effects of the invention are as follows：The device is stored electric energy in storing up electricity by solar panels
Electric power output is provided for power unit in case, sleeve drives the pitch of turntable and agitating roller rotating stirring device body interior to make it
It is heated evenly, quickening is melted, and turn and then drive sealing plate one side up and down under internal thread effect of the screw in the middle part of retainer
It rotates while moving up and down so that agitating roller realization is stirred the pitch of different depth on sealing plate, and shifting roller is realized
Device body uninterruptedly heats in the process of walking, live firewood is overcome to heat the defects of irremovable, pitch adds thermogenetic
The tiny venthole that smog is set by upper wall on the right side of device body filters, and the harmful substance in flue gas is inhaled by aqueous
It receives, so that entering after air themperature rise inside device body in the high temperature aqueous in water tank, cold air is avoided to be directly entered dress
Body interior is put so that temperature declines, the live load of increasing mica heating plate consumes electric energy, and open-heating is avoided to add
The thermal efficiency is low, the problems such as taking.
Description of the drawings
Fig. 1 is the structure diagram of asphalt hot-melt unit.
Fig. 2 is the structure diagram of solar panels and power supply box in asphalt hot-melt unit.
Fig. 3 is the sectional view of asphalt hot-melt unit middle sleeve and Step Shaft.
Fig. 4 is the top view of retainer in asphalt hot-melt unit.
In figure：1- device bodies；2- feed inlets；3- end caps；4- driving motors；5- driving shafts；6- exhaust fans；7- is incomplete
Bevel gear；8- bevel gears；9- sleeves；10- turntables；11- Step Shafts；12- agitating rollers；13- retainers；14- screws；15- is sealed
Disk；16- fixture blocks；17- guide grooves；18- receivers；19- vomit pipes；20- shifting rollers；21- annular seal spaces；22- gas-guide tubes；23-
Water tank；24- conduits；25- air inlets；26- snorkels；27- liquid discharging tubes；28- mica heating plates；29- solar panels；30- struts；
31- sliding blocks；32- storing up electricity casees.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
Please refer to Fig.1~4, in the embodiment of the present invention, a kind of asphalt hot-melt unit, including device body 1；Described device sheet
Body 1 is mainly made of driving shaft 5, master gear 8, Step Shaft 11, screw 14, water tank 23, snorkel 26 and mica heating plate 28；
1 left side outer wall lower end of described device body is fixedly connected with storing up electricity case 32, and 32 side wall of storing up electricity case sets charging hole, 32 upper end of storing up electricity case
Solar panels 29,29 upper end rotary connecting device body 1 of solar panels are set, and 1 lower slide connection sliding block 31 of solar panels is slided
Block 31 is rotatablely connected strut 30,30 right end sliding connecting device body 1 of strut, and 1 inner wall of device body is fixedly connected with mica heating
Plate 28 adjusts the angle of inclination of solar panels 29 by sliding 30 position of strut, utmostly absorbs solar energy, solar energy
Plate 29 converts solar energy into electric energy storage in storing up electricity case 32, and mica heating plate 28 has good insulation performance and high temperature resistant
Performance；Connection feed inlet 2 above 1 left end of described device body, 2 upper end of feed inlet sealing clamping end cap 3,1 right side of device body
Upper end sets driving motor 4,4 left end of driving motor rotation connection driving shaft 5, and 5 left end of driving shaft is fixedly connected with not exclusively cone tooth
Wheel 7, incomplete 7 half of bevel gear half with teeth is anodontia, and incomplete 7 top and the bottom of bevel gear are respectively provided with bevel gear 8, and not exclusively cone
7 toothed portion of gear engagement engagement bevel gear 8, bevel gear 8 are fixedly connected with sleeve 9, and 9 upper shaft of sleeve holds rotary connecting device sheet
1 top of body, 9 lower part of sleeve are fixedly connected with turntable 10, and 10 lower surface of turntable is fixedly connected with agitating roller 12, and driving motor 4, mica add
Hot plate 28 and solar panels 29 are electrically connected storing up electricity case 32 and switch, and opening end cap 3 is by feed inlet 2 into device body 1
Portion adds in asphalt stock, and end cap 3 is covered after blowing, presses switch so that 4 energization work of mica heating plate 28 and driving motor
Make, mica heating plate 28, which is powered, heats the pitch inside device body 1, and driving motor 4 drives driving shaft 5 to rotate and then drive
Incomplete bevel gear 7 follows rotations, the bevel gears 8 of 7 toothed portion of the incomplete bevel gear interval engagement top and the bottom of rotation thus
Band 9 reciprocal positive and negative rotation of moving sleeve, sleeve 9 drive the pitch inside 12 rotating stirring device body 1 of turntable 10 and agitating roller to make
It is heated evenly, and accelerates to melt.
9 lower end of sleeve is socketed Step Shaft 11, and 11 surface of Step Shaft sets strip boss, and 9 inside of sleeve sets strip
Groove, so that Step Shaft 11 can be moved up and down along sleeve 9 and cannot relatively rotated under boss and groove effect, Step Shaft
11 lower ends are fixedly connected with screw 14, and screw 14 is threadedly coupled 13 middle part of retainer, 13 fixed connection apparatus body 1 of retainer, silk
14 lower end fixed connection and sealing plate 15 of bar, 15 edge of sealing plate clamping fixture block 16, and fixture block 16 is slidably connected guide groove 17, is oriented to
17 fixed connection apparatus body of slot, 1 inner wall, 15 both sides of sealing plate set diversion pipe, and diversion pipe top is fixedly connected with Steel net,
The Step Shaft 11 of rotation drives screw 14 to rotate and then sealing plate 15 is driven to follow rotation, and screw 14 is in 13 middle part of retainer
Under threaded function up and down turn so that drive sealing plate 15 rotates while moving up and down so that agitating roller 12 realize to seal
The pitch of different depth is stirred on plate 15, and fixture block 16 can keep sealing plate edge steady, and the pitch after thawing passes through water conservancy diversion
The Steel net on pipe top flows down；15 lower end of sealing plate sets receiver 18, in 18 fixed connection apparatus body 1 of receiver
Wall, 18 both sides of receiver are in inverted cone-shaped, and 18 middle part of receiver connects vomit pipe 19,19 fixed connection apparatus body 1 of vomit pipe
Bottom, 1 both sides lower end of device body rotation connection shifting roller 20, the liquid pitch that Steel net flows down are trapped in receiver 18
Interior, opening vomit pipe 19 can discharge it, and be heated by the way that 20 realization device body 1 of shifting roller is uninterrupted in the process of walking,
The defects of overcoming live firewood heating irremovable.
Exhaust fan 6 is set on the upside of 1 right end of described device body, and exhaust fan 6 is fixedly connected with 5 middle part of driving shaft, device body 1
Right side upper wall sets tiny venthole, venthole communication seals chamber 21,21 lower end of annular seal space connection gas-guide tube 22, device body 1
Right hand external setting water tank 23,22 lower end joining water box of gas-guide tube, 23 bottom, 23 right end top connecting tube 24 of water tank, rotation
Driving shaft 5 drives the rotation generation negative pressure of exhaust fan 6 thermogenetic smog to be added to pump to annular seal space 21 1 inside pitch of device body
Interior, the larger dust of particle is filtered out by the tiny venthole that 1 right side upper wall of device body is set and is trapped in device sheet in smog
Inside body 1, the smog in annular seal space 21 is discharged into 23 bottom of water tank through gas-guide tube 22, by aqueous to the harmful substance in flue gas into
Row absorbs, and clean gas is discharged by conduit 24, simultaneously as the higher aqueous temperature caused in water tank 23 of the temperature of flue gas
Rise；23 lower end of water tank is fixedly connected with air inlet 25, and air inlet 25 connects snorkel 26,26 upper end communication apparatus of snorkel
1 inner upper end of body, 23 lower end of water tank set liquid discharging tube 27, and stopcock is set on liquid discharging tube 27, and 26 lower end of snorkel is curved in two sections
Curved, the flue gas inside 6 aspirator body 1 of exhaust fan causes air pressure to reduce, and surrounding air is entered by air inlet 25 ventilates
In pipe 26, and 26 lower end of snorkel is immersed in bending two ends shape in the high temperature aqueous in water tank 23 so that air themperature rise is laggard
Enter inside device body 1, cold air is avoided to be directly entered 1 inside of device body so that temperature decline, increases mica heating plate 28
Live load, consume electric energy, open-heating is avoided so that the efficiency of heating surface is low, take the problems such as, heating after the completion of rotate rotation
Valve can discharge the dirty water in water tank 23 through liquid discharging tube 27, inject new clean aqueous when reusing by conduit 24.
The present invention operation principle be：It opens end cap 3 and asphalt stock is added in the inside of device body 1 by feed inlet 2, put
End cap 3 is covered after material, presses switch so that the 4 energization work of mica heating plate 28 and driving motor, mica heating plate 28 are logical
Electricity heats the pitch inside device body 1, and driving motor 4 drives driving shaft 5 to rotate and then incomplete bevel gear 7 is driven to follow
It rotates, the bevel gear 8 of 7 toothed portion of the incomplete bevel gear interval engagement top and the bottom of rotation is so as to reciprocal positive and negative with moving sleeve 9
It rotates, sleeve 9 drives the pitch inside 12 rotating stirring device body 1 of turntable 10 and agitating roller to be heated evenly it, accelerates to melt
Change, adjust the angle of inclination of solar panels 29 by sliding 30 position of strut, utmostly absorb solar energy, solar panels
29 convert solar energy into electric energy storage in storing up electricity case 32, and mica heating plate 28 has good insulation performance and heat-resisting quantity
Can, the Step Shaft 11 of rotation drives screw 14 to rotate and then sealing plate 15 is driven to follow rotation, and screw 14 is at 13 middle part of retainer
The lower turn up and down of internal thread effect so that sealing plate 15 is driven to rotate while moving up and down so that the realization pair of agitating roller 12
The pitch of different depth is stirred on sealing plate 15, and fixture block 16 can keep sealing plate edge steady, and the pitch after thawing passes through
The Steel net on diversion pipe top flows down, and the liquid pitch that Steel net flows down is trapped in receiver 18, opens vomit pipe 19
It can discharge it, by the uninterrupted heating in the process of walking of 20 realization device body 1 of shifting roller, live firewood be overcome to heat
The defects of irremovable, the driving shaft 5 of rotation drive exhaust fan 6 to rotate and generate negative pressure by 1 inside pitch heating production of device body
Raw smog is pumped in annular seal space 21, the tiny ventilation that the larger dust of particle is set by 1 right side upper wall of device body in smog
Hole, which filters out, to be trapped in inside device body 1, and the smog in annular seal space 21 is discharged into 23 bottom of water tank through gas-guide tube 22, passes through aqueous
Harmful substance in flue gas is absorbed, clean gas is discharged by conduit 24, is made simultaneously as the temperature of flue gas is higher
The aqueous temperature obtained in water tank 23 rises, and surrounding air is entered by air inlet 25 in snorkel 26, and 26 lower end of snorkel is in
Bending two ends shape, which is immersed in the high temperature aqueous in water tank 23, causes air themperature to enter after raising inside device body 1, avoids cold
Air is directly entered 1 inside of device body so that temperature declines, and the live load of increasing mica heating plate 28 consumes electric energy, keeps away
The problems such as exempting from open-heating and so that the efficiency of heating surface is low, taking, the dirty water in water tank 23 can be passed through by rotating stopcock after the completion of heating
Liquid discharging tube 27 is discharged, and injects new clean aqueous when reusing by conduit 24.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of asphalt hot-melt unit, including device body（1）；Described device body（1）Mainly by driving shaft（5）, main tooth
Wheel（8）, Step Shaft（11）, screw（14）, water tank（23）, snorkel（26）With mica heating plate（28）It forms, which is characterized in that
Described device body（1）Left side outer wall lower end is fixedly connected with storing up electricity case（32）, storing up electricity case（32）Side wall sets charging hole, storing up electricity case
（32）Upper end sets solar panels（29）, solar panels（29）Upper end rotary connecting device body（1）, device body（1）Inner wall
It is fixedly connected with mica heating plate（28）；Described device body（1）Right side upper end sets driving motor（4）, driving motor（4）Left end
It is rotatablely connected driving shaft（5）, driving shaft（5）Left end is fixedly connected with incomplete bevel gear（7）, incomplete bevel gear（7）Top and the bottom
It is respectively provided with bevel gear（8）, and incomplete bevel gear（7）Toothed portion engagement engagement bevel gear（8）, bevel gear（8）It is fixedly connected
Sleeve（9）, sleeve（9）Upper shaft holds rotary connecting device body（1）Top, sleeve（9）Lower part is fixedly connected with turntable（10）, turn
Disk（10）Lower surface is fixedly connected with agitating roller（12）；The sleeve（9）Lower end is socketed Step Shaft（11）, Step Shaft（11）Lower end is consolidated
Determine connection wire rod（14）, screw（14）It is threadedly coupled retainer（13）Middle part, retainer（13）Fixed connection apparatus body（1）,
Screw（14）Lower end fixed connection and sealing plate（15）, sealing plate（15）Edge is clamped fixture block（16）, and fixture block（16）It is slidably connected
Guide groove（17）, guide groove（17）Fixed connection apparatus body（1）Inner wall, sealing plate（15）Both sides set diversion pipe；It is described close
Sealing plate（15）Lower end sets receiver（18）, receiver（18）Fixed connection apparatus body（1）Inner wall, receiver（18）Both sides are in
Inverted cone-shaped, receiver（18）Middle part connects vomit pipe（19）, vomit pipe（19）Fixed connection apparatus body（1）Bottom, device
Body（1）Both sides lower end is rotatablely connected shifting roller（20）；Described device body（1）Exhaust fan is set on the upside of right end（6）, pumping
Fan（6）It is fixedly connected with driving shaft（5）Middle part, device body（1）Right side upper wall sets tiny venthole, venthole communication seals chamber
（21）, annular seal space（21）Lower end connects gas-guide tube（22）, device body（1）Right hand external sets water tank（23）, gas-guide tube（22）
Lower end joining water box（23）Bottom, water tank（23）Right end top connecting tube（24）；The water tank（23）Lower end be fixedly connected into
Gas port（25）, air inlet（25）Connect snorkel（26）, snorkel（26）Upper end communication apparatus body（1）Inner upper end, ventilation
Pipe（26）Lower end is in two sections of bendings.
A kind of 2. asphalt hot-melt unit according to claim 1, which is characterized in that the water tank（23）Lower end sets tapping
Pipe（27）, liquid discharging tube（27）Upper setting stopcock.
A kind of 3. asphalt hot-melt unit according to claim 1, which is characterized in that described device body（1）Above left end
Connect feed inlet（2）, feed inlet（2）Upper end sealing clamping end cap（3）.
A kind of 4. asphalt hot-melt unit according to claim 1, which is characterized in that the Step Shaft（11）Surface sets item
Shape boss, sleeve（9）Inside sets strip groove.
A kind of 5. asphalt hot-melt unit according to claim 1, which is characterized in that the solar panels（1）Lower slide
Connection sliding block（31）, sliding block（31）It is rotatablely connected strut（30）, strut（30）Right end sliding connecting device body（1）.
6. a kind of asphalt hot-melt unit according to claim 1, which is characterized in that the diversion pipe top is fixedly connected with steel
Wire gauze filter.
A kind of 7. asphalt hot-melt unit according to claim 1, which is characterized in that the driving motor（4）, mica heating
Plate（28）And solar panels（29）It is electrically connected storing up electricity case（32）And switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297671.9A CN108060624A (en) | 2017-12-08 | 2017-12-08 | A kind of asphalt hot-melt unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711297671.9A CN108060624A (en) | 2017-12-08 | 2017-12-08 | A kind of asphalt hot-melt unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108060624A true CN108060624A (en) | 2018-05-22 |
Family
ID=62135467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711297671.9A Pending CN108060624A (en) | 2017-12-08 | 2017-12-08 | A kind of asphalt hot-melt unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN108060624A (en) |
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| CN108625268A (en) * | 2018-06-19 | 2018-10-09 | 佛山新籁工程科技有限公司 | A kind of multi-stag old concrete road breaker |
| CN108625308A (en) * | 2018-06-27 | 2018-10-09 | 佛山新籁工程科技有限公司 | A kind of municipal road construction alarming device |
| CN108857761A (en) * | 2018-06-12 | 2018-11-23 | 盐城市力铖汽车配件有限公司 | A kind of grinding device for multiple automotive brake padss that can polish simultaneously |
| CN112403759A (en) * | 2020-11-17 | 2021-02-26 | 陈意 | Fruit and vegetable planting spouts medicine device with movable type |
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| CN108625268A (en) * | 2018-06-19 | 2018-10-09 | 佛山新籁工程科技有限公司 | A kind of multi-stag old concrete road breaker |
| CN108625268B (en) * | 2018-06-19 | 2020-10-02 | 江西四季景观建设有限公司 | Multistage old concrete pavement crushing device |
| CN108625308A (en) * | 2018-06-27 | 2018-10-09 | 佛山新籁工程科技有限公司 | A kind of municipal road construction alarming device |
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Application publication date: 20180522 |