CN115125813A - Milling drum and bituminous pavement milling machine - Google Patents
Milling drum and bituminous pavement milling machine Download PDFInfo
- Publication number
- CN115125813A CN115125813A CN202210963729.3A CN202210963729A CN115125813A CN 115125813 A CN115125813 A CN 115125813A CN 202210963729 A CN202210963729 A CN 202210963729A CN 115125813 A CN115125813 A CN 115125813A
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- 238000003801 milling Methods 0.000 title claims abstract description 199
- 239000010426 asphalt Substances 0.000 claims description 36
- 238000003723 Smelting Methods 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims 8
- 239000002828 fuel tank Substances 0.000 claims 2
- 239000003921 oil Substances 0.000 description 38
- 239000000463 material Substances 0.000 description 27
- 239000000428 dust Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Classifications
-
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
- E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
- E01C23/088—Rotary tools, e.g. milling drums
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention relates to a milling drum and a bituminous pavement milling machine, which effectively solve the technical problems that the milling cutter head of the existing milling drum is easy to damage and inconvenient to maintain, and comprises a milling drum rotor, a cutter holder and a milling cutter head which are detachably arranged on the milling drum rotor, wherein the cutter holder and the milling cutter head are spirally arranged on the milling drum rotor respectively.
Description
Technical Field
The invention relates to the technical field of road machinery, in particular to a milling drum and an asphalt pavement milling machine.
Background
The milling machine is used for milling a damaged layer of the asphalt pavement and then laying a new layer of asphalt pavement, and mainly comprises an engine, a frame, a milling drum, a milling depth adjusting system, a traveling system, a hydraulic adjusting unit, an aggregate conveying unit, steering, braking and other structures.
Milling drum is the core component of milling machine for directly acting on bituminous paving, and bituminous paving is harder, needs to carry out maintenance and service to milling cutter head after using a period of time each time, and milling cutter head can lead to damaging after long-time use, its leading reason is: firstly, bituminous paving is very hard, and mutual reaction force leads to milling the drill and damages, secondly when initial milling, mill the damage that the tool bit runs into bituminous paving initial stage and leads to, so often all adopt initial slow speed, then the mode of accelerating again reduces the damage.
When maintaining and maintaining, it is in the time of milling the drum to need to bore in milling the drum or will mill the drum and dismantle, when only maintaining and milling the tool bit, then adopt and creep into the interior mode maintenance of milling the drum, only just will mill the drum and dismantle when only milling the drum maintenance, when creeping into and milling the interior maintenance of drum, need rotate milling the drum, now generally adopt and directly rotate milling the drum with the hand, but it is very heavy to mill the drum, it is hard when bare-handed rotation, another kind adopts electronic mode, mill and install the motor alone on one side of milling the drum, keep off behind milling the drum and install control button additional, but need two people to cooperate just can use when maintaining at every time, because when the maintainer enters into milling the drum front side, can't touch control button, lead to the operation inconvenient.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a milling drum and an asphalt pavement milling machine, which effectively solve the technical problems that the milling cutter head of the existing milling drum is easy to damage and inconvenient to maintain.
The utility model provides a mill and dig drum, includes and mills the drum rotor and demountable installation mills the blade holder and mill the tool bit on milling the drum rotor, the blade holder is milling the drum rotor respectively with milling the tool bit spiral, its characterized in that, mill the tool bit side and correspond to install and arrange in the hydraulic telescoping cylinder unit of milling on the drum rotor, be fixed with the examination on the hydraulic telescoping cylinder unit and smelt the tool bit subassembly, the intercommunication has the oil return pipe of small bore on the hydraulic telescoping cylinder unit.
Preferably, the hydraulic telescopic cylinder unit comprises a hydraulic cylinder and a telescopic cylinder which is telescopic in the hydraulic cylinder, an oil supply port is formed in the lower end of the hydraulic cylinder, the oil supply port is connected with an oil supply pump through a pipeline, the oil supply pump is connected with an oil tank, an oil outlet is formed in the lower end of the telescopic cylinder, the oil outlet is connected with the oil supply pump through a pipeline, an electromagnetic valve is connected to the pipeline, and the upper end of the hydraulic cylinder is communicated with the oil tank through an oil return pipe with a small diameter.
Preferably, the trial-smelting tool bit assembly comprises two side plates fixed on the telescopic cylinder, a trial-smelting tool bit is rotatably connected between the two side plates through a trial-smelting shaft, a worm wheel arranged on the outer side of each side plate is sleeved on the trial-smelting shaft, a worm is meshed with the worm wheel, and a trial-smelting motor is meshed with the worm.
Preferably, the trial smelting nozzle is fixed on the rear side of the trial smelting tool bit, the trial smelting shaft is internally provided with a cavity and communicated with the trial smelting nozzle, and the trial smelting shaft is connected with a water supply unit.
Preferably, a plurality of polygonal notches are reserved on the milling drum rotor.
Preferably, one end of the milling drum rotor is fixed with an extension shaft, the extension shaft is sleeved with a pinion, the pinion is meshed with a gearwheel, the gearwheel is coaxially fixed with a one-way wheel, the one-way wheel is coaxially connected with a pull wheel, the pull wheel is sleeved with a coil spring, and the pull wheel is connected with a pull ring by bypassing the pulley block through a pull rope.
The asphalt pavement milling machine is characterized by comprising a milling drum, wherein a preheating unit capable of lifting is arranged in front of the milling drum, the preheating unit comprises a preheating shell capable of lifting, an infrared heater is arranged in the preheating shell, a longitudinal shaft penetrates through the rear side of the infrared heater, a plurality of cams are sleeved on the longitudinal shaft, and percussion bits are slidably mounted at the lower ends of the cams;
a supporting plate is fixed on the rear side of the preheating shell, a plurality of L-shaped arch drills are uniformly distributed at the lower end of the supporting plate, water channels are arranged in the arch drills, and the upper ends of the plurality of arch drills are communicated with a water distribution box through water distribution pipes.
Preferably, a front side plate is arranged in front of the milling drum, an arch bin and a conveyor belt are arranged on the front side plate, a negative pressure pipe is arranged below the front side plate, and the other end of the negative pressure pipe is arranged above the conveyor belt.
Preferably, mill and plane the drum rear side and be equipped with the unit that cleans that can go up and down, clean the unit rear side and be fixed with flat hopper, flat hopper department is fixed with the spiral feeding axle, and flat hopper rear end is connected with the storage silo, and the storage silo rear end tilt up is equipped with the feed bin, goes up inherent shaftless auger delivery piece in the feed bin.
Compared with the prior art, the invention has the following technical effects:
1. the invention can prolong the service life of the milling cutter head, reduce the replacement of the milling cutter head and reduce the cost.
2. The milling drum can be conveniently rotated, and the milling drum is convenient to maintain.
3. The invention can reduce milling dust and reduce air pollution.
4. The invention can preheat the asphalt pavement in advance, reduce the abrasion to the milling cutter head and accelerate the milling efficiency of the milling cutter head.
5. The asphalt material left by milling can be efficiently recycled without an independent manual work or a material collecting machine.
6. The invention has the advantages of multifunctional humanized practical improvement, market demand satisfaction and popularization value.
Drawings
Fig. 1 is an overall front view of the milling machine of the present invention.
Fig. 2 is a perspective view of the present invention.
FIG. 3 is a schematic front view of the present invention.
Fig. 4 is a perspective view of the milling drum of the present invention.
Fig. 5 is a schematic front view of the milling drum of the present invention.
Fig. 6 is a schematic view of the hydraulic telescopic cylinder unit of the present invention.
FIG. 7 is a schematic diagram of a preheating unit according to the present invention.
Fig. 8 is a schematic view of the milling drum rotation drive of the present invention.
Reference numerals:
1: milling drum rotor; 2: a tool apron; 3: milling a cutter head; 4: a hydraulic telescopic cylinder unit; 5: a trial milling cutter head assembly; 6: an oil return pipe; 7: a hydraulic cylinder; 8: a telescopic cylinder; 9: an oil supply port; 10: an oil supply pump; 11: an oil tank; 12: an oil outlet; 13: an electromagnetic valve; 14: a side plate; 15: trial-smelting the shaft; 16: trial smelting of a cutter head; 17: a worm gear; 18: a worm; 19: a trial motor; 20: trial smelting of the spray head; 21: a polygonal slot; 22: an extension shaft; 23: a pinion gear; 24: a bull gear; 25: a one-way wheel; 26: pulling a wheel; 27: a coil spring; 28: pulling a rope; 29: a pulley block; 30: a pull ring; 31: a preheating unit; 32: preheating the shell; 33: an infrared heater; 34: a longitudinal axis; 35: a cam; 36: a percussion drill bit; 37: a support plate; 38: performing arch drilling; 39: a water channel; 40: a water diversion pipe; 41: a front edge plate; 42: an arch storage bin; 43: a conveyor belt; 44: a negative pressure tube; 45: a cleaning unit; 46: leveling a hopper; 47: a screw feed shaft; 48: a storage bin; 49: feeding a bin; 50: shaftless spiral conveying sheet.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 8. The contents of the following examples are all referred to in the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The embodiment I discloses a milling drum, which mainly aims at the technical problems that the milling cutter head of the existing milling drum is easy to damage and inconvenient to maintain, the milling drum mainly comprises a milling drum rotor 1, a cutter seat 2 and a milling cutter head 3 which are detachably replaced on the milling drum rotor 1, and when the milling drum is repaired and replaced, the cutter seat 2 and the milling cutter head 3 are replaced by using special tools, wherein the replacement frequency of the milling cutter head 3 is the highest, the arrangement modes of the milling cutter head 3 on the milling drum rotor 1 are various, such as interval circumference type, spiral type, finish milling dense cloth type and the like, the invention takes one spiral type as an example, the cutter seat 2 and the milling cutter head 3 are spirally installed on the milling drum rotor 1, in the interval of the spiral cutter head, each milling cutter head 3 is correspondingly provided with an installation groove which is arranged on the milling drum rotor 1, and a hydraulic telescopic cylinder unit 4 is fixedly installed in the installation groove, be fixed with the examination on the hydraulic telescoping cylinder unit 4 and smelt tool bit subassembly 5, examination is smelted tool bit subassembly 5 and is smelted tool bit 16 including the examination, the examination is smelted tool bit 16 material, the quality, the precision, length is different in milling tool bit 3, but can mill bituminous paving, this examination is smelted tool bit 16 live time and is shorter, the initial milling in mainly used starting stage, it can change for milling tool bit 3 to wait to mill the normal back of mill drum rotational speed, this examination is smelted tool bit 16 and also need not install the blade holder, reduce the cost, also conveniently dismantle and maintain simultaneously, the life of extension milling tool bit 3, and the intercommunication has the oil return pipe 6 of small bore on the hydraulic telescoping cylinder unit 4.
The hydraulic telescopic cylinder unit 4 comprises a hydraulic cylinder 7 fixed in the mounting groove and a telescopic cylinder 8 telescopic in the hydraulic cylinder 7, when the hydraulic cylinder 7 is transversely arranged, an oil supply port 9 is formed in the lower end of the hydraulic cylinder 7, the oil supply port 9 is connected with an oil supply pump 10 through a pipeline, the oil supply pump 10 is connected with an oil tank 11, an oil outlet 12 is formed in the lower end in front of the telescopic cylinder 8, the oil outlet 12 is connected with the oil supply pump 10 through a pipeline, an electromagnetic valve 13 is connected to the oil supply and outlet pipelines and is responsible for opening and closing the pipelines, and the upper end of the hydraulic cylinder 7 is communicated with the oil tank 11 through an oil return pipe 6 with a small diameter.
In a specific embodiment, during initial use, the hydraulic telescopic cylinder unit 4 is started, the trial milling cutter head 16 is extended beyond the milling cutter head 3, the milling drum rotor 1 is lowered to contact the asphalt pavement, then the milling drum rotor 1 is started to rotate, at the moment, the trial milling cutter head 16 starts to mill the pavement, at the moment, the milling cutter head 3 is not in contact with the asphalt pavement, the damage to the cutter head during initial milling is maximum, at the moment, the trial milling cutter head 16 interacts with the asphalt pavement, the reaction force of the asphalt pavement on the trial milling cutter head 16 is opposite to that of the trial milling cutter head 16, so that the trial milling cutter head 16 starts to shrink backwards, then the milling drum rotor 1 is continuously controlled downwards, and the trial milling cutter head 16 slowly shrinks backwards.
The most important contraction is the initial extension of the telescopic cylinder 8, the oil supply pump 10 supplies oil to push the telescopic cylinder 8 to extend, the oil outlet 12 discharges oil, after the extension is finished, the electromagnetic valve 13 is closed, after the trial milling cutter head 16 interacts with the asphalt pavement, the telescopic cylinder 8 is supplied with the reactive force of the asphalt pavement, the telescopic cylinder 8 extrudes hydraulic oil, so that the hydraulic oil slowly returns to the oil tank 11 from the oil return pipe 6 with a small diameter, and when the trial milling cutter head 16 is flush with the milling cutter head 3, a laser sensor or a level sensor is correspondingly arranged on the milling drum, then a signal is sent to the electromagnetic valve 13, at the moment, the oil outlet 12 feeds oil, the oil supply port 9 discharges oil, so that the trial milling cutter head 16 contracts to be shorter than the milling cutter head 3, and along with the rotation of the milling drum, the trial milling cutter head 16 is slowly changed into the milling cutter head 3 to start normal work.
The invention mainly aims to improve the structure, wherein the related sensors and control systems are all the existing connection control technology, only the control is needed according to the function connection, the scope of the technical personnel in the field is not needed to be exceeded, the milling machine is mature in the prior art, and the related sensors and control systems are also related.
In the second embodiment, the trial-smelting tool bit assembly 5 comprises two side plates 14 on two side surfaces of the end of the telescopic rod 8, a trial-smelting tool bit 16 is rotatably connected between the two side plates 14 through a trial-smelting shaft 15, a worm wheel 17 is sleeved at the end of the trial-smelting shaft 15, the worm wheel 17 is arranged on the outer side of the side plates 14, the worm wheel 17 is meshed with a worm 18, the worm 18 is connected with a trial-smelting motor 19, and the trial-smelting motor 19 is a servo motor.
The rear side of the trial smelting tool bit 16 is also fixed with a trial smelting nozzle 20, the trial smelting nozzle 20 and the trial smelting tool bit 16 are located on the same plane and fixed by a clamping shell, a cavity is formed inside the trial smelting shaft 15 and communicated with the trial smelting nozzle 20, the trial smelting shaft 15 is rotatably connected with a water supply unit, and the water supply unit is used for supplying water for the trial smelting nozzle 20.
In the specific embodiment, when the milling drum mills the asphalt pavement, a large amount of dust is generated, water can wrap the dust and fall on the ground, after the trial milling cutter head 16 is switched to the milling cutter head 3, the laser sensor of the embodiment sends a signal to the trial milling motor 19, a servo motor program is set, the trial milling motor 19 drives the trial milling shaft 15 to rotate, the trial milling cutter head 16 and the trial milling spray head 20 rotate 180 degrees, the trial milling cutter head stops rotating after the position is switched, a signal is sent to the water supply unit, a water supply pipe of the water supply unit is rotationally connected with the trial milling shaft 15, when the trial milling shaft 15 rotates, the water supply unit does not rotate, openings are formed in the front end of the trial milling spray head 20 and the direction towards the milling cutter head 3, one part of the water supply unit is used for dust fall, the other part is used for wetting the asphalt pavement, the milling difficulty is reduced, the other part is used for washing and cleaning the milling cutter head 3, so that the milling cutter head 3 becomes clean, without affecting the efficiency of the milling cutter head 3.
In the third embodiment, a plurality of polygonal notches 21 are reserved on the milling drum rotor 1, and the notches may be pentagonal, hexagonal, octagonal, and the like.
When the milling drum needs to be repaired or maintained, the milling drum enters the milling drum, the milling drum rotor 1 needs to be rotated when the tool holders 2 or the milling cutter heads 3 at different positions need to be repaired, and when the milling drum does not rotate frequently, a special tool is inserted into the polygonal notch 21 and then rotates downwards, so that the milling drum rotor 1 rotates.
When the milling drum rotor 1 needs to rotate frequently, the pull rope 28 is pulled forcefully, the length of the pull rope 28 can meet the length of the milling drum rotor 1, and any position of a maintenance worker is met, the pull rope 28 is pulled, the pull rope 28 is labor-saving through the pulley block 29, the pull wheel 26 is driven to rotate, the pull wheel 26 drives the one-way wheel 25 to rotate, the one-way wheel 25 drives the large gear 24 to rotate, the large gear 24 drives the small gear 23 to rotate, the small gear 23 drives the milling drum rotor 1 to rotate, after hands are loosened, the coil spring 27 drives the pull rope 28 to reset, the pull wheel 26 rotates reversely, the inner shaft of the one-way wheel 25 is driven to rotate, the one-way wheel 25 does not drive the large gear 24 to rotate, therefore, the milling drum rotor 1 does not rotate, when the milling machine mills, the general milling direction is fixed, forward milling or reverse milling is performed, and only the one-way wheel 25 is idle and reverse.
Furthermore, the pulling wheel shaft of the pulling wheel 26 can be adjusted in a short distance, the large gear 24 and the small gear 23 can be disengaged by adjusting the distance, the large gear 24 is transversely moved to be engaged with the small gear 23 during maintenance, and the large gear 24 and the small gear 23 are disengaged during normal milling.
The fourth embodiment, an asphalt pavement milling machine comprises a milling drum, a preheating unit 31 capable of ascending and descending is arranged in front of the milling drum, the preheating unit 31 comprises a preheating shell 32 capable of ascending and descending, a hydraulic lifting system is fixed above the preheating shell 32, a red line heater 33 is arranged in the preheating shell 32, liquid nitrogen and air are mixed according to a certain proportion and then are combusted on the surface of an alloy sintered felt, most of heat generated by combustion is converted into infrared rays and heats an asphalt pavement, a partition plate is arranged in the preheating shell 32, a longitudinal shaft 34 penetrating through the preheating shell 32 is longitudinally arranged on the rear side of the partition plate, a plurality of uniformly distributed cams 35 are sleeved on the longitudinal shaft 34, an impact drill bit 36 is slidably arranged at the lower end of the cam 35 and used for vibrating and breaking the asphalt pavement, a support plate 37 is fixed on the rear side of the preheating shell 32, a plurality of L-shaped arch drills 38 are uniformly distributed at the lower end of the support plate 37, water channels 39 are reserved in the arched drill 38, the upper portions of the water channels 39 are communicated with the water distribution box through a plurality of water distribution pipes 40, and hot water is supplied into the water distribution box.
In the specific embodiment, in addition to the milling drum, a preheating unit 31 is arranged in front of the milling drum, one of the main reasons for abrasion of the milling bits 3 is that the asphalt pavement is too hard, the preheating unit 31 can relatively soften the asphalt pavement, which is convenient for milling of the milling bits 3, the preheating unit 31 includes a preheating housing 32, a hydraulic lifting system is fixed at the upper end of the preheating housing 32, an infrared heater 33 is fixed at the lower end inside the preheating housing 32, a longitudinal shaft 34 of the preheating housing 32 penetrates through the rear side of the infrared heater 33, a plurality of cams 35 are sleeved on the longitudinal shaft 34, an impact bit 36 is slidably mounted at the lower end of the cam 35, the impact bit 36 is used for vibrating and crushing the pavement, and is prepared for subsequent milling bits 3 in advance, and one end of the longitudinal shaft 34 is connected with a driving motor.
The water distribution box supplies hot water to the water channel 39 through the water distribution pipe 40, the hot water impacts the asphalt pavement along with the arch drill 38, the milling cutter head 3 is convenient to mill the pavement, and meanwhile the effect of performing dust fall treatment on the pavement in advance is achieved.
In the fifth embodiment, a front side plate 41 is arranged in front of the milling drum, an arch bin 42 is communicated above the front side plate 41, the arch bin 42 is connected with a conveying belt 43, a negative pressure pipe 44 is communicated below the front side plate 41, the other end of the negative pressure pipe 44 is arranged above the conveying belt 43, negative pressure drive is arranged in the negative pressure pipe 44, the milled asphalt material is arched to the arch bin 42 and conveyed by the conveying belt 43 when the milling cutter head 3 mills, while a part of the milled asphalt material falls on the ground and generates dust, the falling material is sucked away by the negative pressure pipe 44 and is sucked away, and finally the sucked material and the dust are collected on the conveying belt 43 and conveyed together.
Six embodiments, mill and dig drum rear side and be equipped with and clean unit 45, clean unit 45 including cleaning the drive storehouse, it is equipped with the motor to clean in the drive storehouse, clean the motor lower extreme and connect two clean brushes that the inward gathering was cleaned, it is equipped with the lift unit to clean the drive storehouse upper end, at the fixed shovel material unit that can go up and down of unit 45 rear side, shovel material unit includes flat hopper 46, be equipped with the lift unit on the flat hopper 46, flat hopper 46 opening part is fixed with spiral feeding shaft 47, drive unit is connected to spiral feeding shaft 47, flat hopper 46 rear end is connected with storage silo 48, storage silo 48 rear end tilt up is equipped with feed bin 49, feed bin 49 internal fixation is equipped with shaftless auger delivery piece 50, shaftless auger delivery piece 50 connects drive unit.
The milling cutter head 3 conveys a part of the asphalt material milled from the asphalt pavement away through the conveyor belt 43, and the other part of the asphalt material falls on the ground, generally, the asphalt material needs to be shoveled away by manual cooperation at the back, or the asphalt material is shoveled away by a shoveling machine.
The cleaning brush of the invention collects and cleans the asphalt materials inwards, the spiral feeding shaft 47 conveys the asphalt materials tightly to the storage bin 48 and then conveys the asphalt materials away through the shaftless spiral conveying pieces 50, and the intervals among the shaftless spiral conveying pieces 50 can convey the asphalt materials better.
And the lifting cooperation of the cleaning unit and the shoveling unit can be as follows:
firstly there are hydraulic lifting system and the control unit on cleaning the unit, hydraulic lifting system and the control unit on the shovel material unit, when milling the drum and milling, clean the unit decline and contact ground, shovel the material unit and be in the top position, when cleaning the unit and clean a certain time or distance or pile up the ration, the control unit makes and cleans the unit and rises, shovel the material unit and descends, shovel the material unit and accomplish the back with the material, shovel the material unit and rise, clean the unit and descend and continue.
And the cleaning unit is provided with a hydraulic lifting system and a control unit, and the material shoveling unit is independent of the lifting system and the control unit, does not need to be matched with the cleaning unit and is always in a descending position when in use.
And thirdly, the lifting assembly of the cleaning unit and the shoveling unit comprises a cleaning rack fixed on the cleaning unit and a shoveling rack fixed on the shoveling unit, a driving gear is meshed between the two racks together, the driving gear is connected with the driving unit, when the cleaning unit descends, but after the cleaning unit is gathered, the driving gear drives the cleaning unit to ascend, the shoveling unit descends, and when the cleaning unit is matched with the sensor to cross the gathered materials, the cleaning unit reversely ascends and descends to continue working.
Compared with the prior art, the invention has the following technical effects:
1. the invention can prolong the service life of the milling cutter head, reduce the replacement of the milling cutter head and reduce the cost.
2. The milling drum can be conveniently rotated, and the milling drum is convenient to maintain.
3. The invention can reduce milling dust and reduce air pollution.
4. The invention can preheat the asphalt pavement in advance, reduce the abrasion to the milling cutter head and accelerate the milling efficiency of the milling cutter head.
5. The asphalt material left by milling can be efficiently recycled without an independent manual work or a material collecting machine.
6. The invention has the advantages of multifunctional humanized practical improvement, market demand satisfaction and popularization value.
While the present invention has been described in detail with respect to the preferred embodiments thereof, it will be appreciated that the above description should not be construed as limiting the invention and that various modifications and alternatives thereof will be apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. The utility model provides a mill and dig drum, includes and mills plane drum rotor (1) and demountable installation blade holder (2) and milling cutter head (3) on milling plane drum rotor (1), blade holder (2) and milling cutter head (3) spiral are respectively milling plane drum rotor (1), its characterized in that, milling cutter head (3) side correspondence is installed and is arranged in hydraulic telescoping cylinder unit (4) on milling plane drum rotor (1), is fixed with on hydraulic telescoping cylinder unit (4) and tries on the smelting cutter head subassembly (5), and the intercommunication has oil return pipe (6) of small bore on hydraulic telescoping cylinder unit (4).
2. The milling drum as claimed in claim 1, characterized in that the hydraulic telescopic cylinder unit (4) comprises a hydraulic cylinder (7) and a telescopic cylinder (8) which is telescopic in the hydraulic cylinder (7), wherein a fuel supply port (9) is formed at the lower end of the hydraulic cylinder (7), the fuel supply port (9) is connected with a fuel supply pump (10) through a pipeline, the fuel supply pump (10) is connected with a fuel tank (11), a fuel outlet (12) is formed at the lower end of the telescopic cylinder (8), the fuel outlet (12) is connected with the fuel supply pump (10) through a pipeline, a solenoid valve (13) is connected on the pipeline, and the upper end of the hydraulic cylinder (7) is communicated with the fuel tank (11) through a small-diameter fuel return pipe (6).
3. Milling drum according to claim 1, characterized in that the trial milling cutter head assembly (5) comprises two side plates (14) fixed on the telescopic cylinder (8), a trial milling cutter head (16) is rotatably connected between the two side plates (14) through a trial milling shaft (15), a worm wheel (17) arranged on the outer side of the side plates (14) is sleeved and connected on the trial milling shaft (15), the worm wheel (17) is engaged with a worm (18), and the worm (18) is engaged with a trial milling motor (19).
4. Milling drum according to claim 3, characterized in that the trial milling cutter head (16) is fixed with a trial milling spray head (20) at the rear side, the trial milling shaft (15) is internally provided with a cavity and communicated with the trial milling spray head (20), and the trial milling shaft (15) is connected with a water supply unit.
5. Milling drum according to claim 1, characterised in that a plurality of polygonal notches (21) are reserved on the milling drum rotor (1).
6. Milling drum according to claim 1, characterized in that an extension shaft (22) is fixed to one end of the milling drum rotor (1), a pinion (23) is sleeved on the extension shaft (22), a gearwheel (24) is meshed with the pinion (23), a one-way wheel (25) is coaxially fixed to the gearwheel (24), a pull wheel (26) is coaxially connected to the one-way wheel (25), a coil spring (27) is sleeved on the pull wheel (26), and the pull wheel (27) is connected to a pull ring (30) by a pull rope (28) bypassing the pulley block (29).
7. The asphalt pavement milling machine is characterized by comprising a milling drum, wherein a preheating unit (31) capable of ascending and descending is arranged in front of the milling drum, the preheating unit (31) comprises a preheating shell (32) capable of ascending and descending, an infrared heater (33) is arranged in the preheating shell (32), a longitudinal shaft (34) penetrates through the rear side of the infrared heater (33), a plurality of cams (35) are sleeved on the longitudinal shaft (34), and an impact drill bit (36) is slidably mounted at the lower end of each cam (35);
a supporting plate (37) is fixed on the rear side of the preheating shell (32), a plurality of L-shaped arch drills (38) are uniformly distributed at the lower end of the supporting plate (37), a water channel (39) is arranged in each arch drill (38), and the upper ends of the plurality of arch drills (38) are communicated with a water distribution box through a water distribution pipe (40).
8. The bituminous pavement milling machine according to claim 7, characterized in that a front plate (41) is arranged in front of the milling drum, an arch bin (42) and a conveyor belt (43) are arranged on the front plate (41), a negative pressure pipe (44) is arranged below the front plate (41), and the other end of the negative pressure pipe (44) is arranged above the conveyor belt (43).
9. The asphalt pavement milling machine according to claim 8, wherein the rear side of the milling drum is provided with a lifting cleaning unit (45), the rear side of the cleaning unit (45) is fixed with a leveling hopper (46), a spiral feeding shaft (47) is fixed at the leveling hopper (46), the rear end of the leveling hopper (46) is connected with a storage bin (48), the rear end of the storage bin (48) is provided with an upward inclined feeding bin (49), and a shaftless spiral conveying piece (50) is inherent in the feeding bin (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210963729.3A CN115125813B (en) | 2022-08-11 | Milling drum and bituminous pavement milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210963729.3A CN115125813B (en) | 2022-08-11 | Milling drum and bituminous pavement milling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115125813A true CN115125813A (en) | 2022-09-30 |
| CN115125813B CN115125813B (en) | 2024-05-31 |
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