CN114673047B - Asphalt paver for municipal road and construction process - Google Patents

Abstract

The application relates to the technical field of asphalt pavers and discloses an asphalt paver for municipal roads and a construction process, which comprise a machine body, wherein one side of the machine body is provided with a controller, the inside of the machine body is provided with a hopper, the bottom of the hopper penetrates through the machine body and is provided with a blanking pipe through an electromagnetic valve, a first temperature sensor is arranged in the blanking pipe and is used for detecting the temperature value of asphalt flowing out along the blanking pipe, a scraper is arranged below the machine body, the outer surface of one side of the scraper, which is close to the blanking pipe, is provided with a second temperature sensor and is used for detecting the temperature value of the surface of the scraper, both sides of the scraper are connected with side baffles in a sliding manner, the side baffles are connected with the scraper through adjusting components, the problem that the height of the scraper for uniformly wiping asphalt is inconvenient to adjust is solved, the condition that uneven asphalt is frequently caused by asphalt wiping occurs, and the residual asphalt residues on the surfaces of the scraper and a moving plate cannot be thoroughly cleaned.

Description

Asphalt paver for municipal road and construction process

Technical Field

The application belongs to the technical field of asphalt pavers, and particularly relates to an asphalt paver for a municipal road and a construction process.

Background

The road surface machine is a machine for building roads, urban road surfaces, airport pavement surfaces and the like in civil engineering, and the asphalt paver is a common road surface machine, and is generally required to be used for paving and repairing the road surface.

And (3) uniformly paving the asphalt mixture on the road base layer, and performing preliminary compaction and leveling. The crawler type and the tire type are divided. The device consists of two parts, namely traction, paving, compaction and ironing. The former comprises a frame, a power device, a walking device, a machine body, a material door, a scraper conveyor, a spiral spreader, a cab and the like. The latter comprises a traction arm, a tap mechanism and an ironing device.

The application of China patent CN2021100616780 relates to a manual asphalt paver, which comprises a frame provided with travelling wheels, an asphalt storage tank arranged on the frame, a blanking groove and a vibrating mechanism, wherein the blanking groove comprises two side baffles distributed along the left-right direction and a bottom plate positioned between the two side baffles, one end of each side baffle is fixedly connected to the lower side wall of the machine body, each side baffle is provided with an inward flanging, and the bottom plate is supported on the inward flanging through a plurality of compression springs; the vibration mechanism comprises a sliding sleeve connected to the frame, an impact rod penetrating through the sliding sleeve and extending in the front-back direction, an impact bottom plate, and a connecting rod with one end connected to the impact rod through a first horizontal pin, wherein the other end of the connecting rod is eccentrically connected to the travelling wheel through a second horizontal pin, the first horizontal pin, the second horizontal pin and the axis of the travelling wheel are parallel, the asphalt paver has certain inconvenience in use, the height of a scraping plate which is uniformly smeared with asphalt is inconvenient to adjust, and uneven asphalt can be frequently smeared.

Meanwhile, the existing asphalt paver is used for placing high-temperature asphalt in a machine body, when the high-temperature asphalt falls to the ground along a blanking pipe, due to the principle of thermal expansion and contraction of asphalt, the volume of asphalt on the ground can be reduced relative to the volume of the asphalt discharged, and if the asphalt is paved according to the original proportion, gaps are formed in asphalt paving, so that uneven pavement is further caused, the quality of the pavement is reduced, and potential safety hazards exist.

Meanwhile, when the pavement paving machine is used for a long time, because asphalt itself has viscosity, the surfaces of the scraping plates and the side baffles can be adhered with part of asphalt, so that the subsequent paving work is hindered, the paving quality is reduced, and the pavement evenness is influenced.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the application provides the asphalt paver for the municipal road and the construction process, which effectively solve the problems that the height of a scraping plate for uniformly wiping asphalt in the prior art is inconvenient to adjust, uneven asphalt wiping often occurs, the spreading width cannot be adaptively adjusted according to the principle of expansion caused by heat and contraction caused by cold of asphalt, and asphalt adhered to the surfaces of the scraping plate and the side baffle is cleaned.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides an asphalt paving machine for municipal road, includes the organism, one side of organism is equipped with the controller, the inside of organism is equipped with the hopper, the bottom of hopper passes the organism and is equipped with the blanking pipe through the solenoid valve, the inside first temperature sensor that is equipped with of blanking pipe is used for detecting the temperature value along the pitch of blanking pipe outflow, the below of organism is equipped with the scraper blade, one side surface that the scraper blade is close to the blanking pipe is equipped with the second temperature sensor and is used for detecting the temperature value on scraper blade surface, the both sides of scraper blade all sliding connection has the side shield, the side shield passes through adjusting part with the scraper blade and is connected, one side that the scraper blade kept away from the blanking pipe is equipped with first fixed plate, the inside threaded connection of first fixed plate has first screw thread post, the bottom of organism is equipped with first motor, the output and first screw thread post fixed connection of first motor, first screw thread post surface is equipped with spacing subassembly;

the adjusting component comprises a supporting plate, the supporting plate is fixedly connected with the scraping plate, one side of the side baffle is contacted with the scraping plate, a second motor is arranged on one side, close to the supporting plate, of the side baffle, a second threaded column is arranged at the output end of the second motor, the second threaded column is in threaded connection with the supporting plate, and a fixing component is arranged on the other side of the second threaded column;

a sliding groove is formed in one side, far away from the scraping plate, of the supporting plate, a first electric telescopic rod is arranged in the sliding groove, a second electric telescopic rod is arranged at the output end of the first electric telescopic rod, the first electric telescopic rod and the second electric telescopic rod are vertically arranged, and a scraping knife is arranged at the output end of the second electric telescopic rod;

the side baffle is provided with a corrugated pipe at one side far away from the supporting plate, the other end of the corrugated pipe is provided with a moving plate, one side of the corrugated pipe close to the side baffle is provided with a calibration electromagnet, one side of the corrugated pipe close to the moving plate is provided with a magnetic block, and the magnetism of the calibration electromagnet is the same as that of the magnetic block;

controlling the moving distance of the second motor to drive the side baffle according to the rising height of the scraping plate driven by the first motor and the opening size of the electromagnetic valve, and controlling the energizing current of the calibration electromagnet to be larger when the temperature difference value detected by the first temperature sensor and the second temperature sensor is larger, wherein the moving distance of the moving plate to the end far away from the side baffle is larger; when the distance between the side baffle plate and the supporting plate is minimum, the calibration electromagnet is powered off, and the scraper is contacted with the side wall of the movable plate;

the method comprises the following steps:

s1, moving the machine body to a proper position, placing molten asphalt in the hopper, controlling an electromagnetic valve in a blanking pipe to be opened by the controller, enabling the asphalt in the hopper to fall to the ground along the blanking pipe, and detecting a temperature value in the blanking pipe by the first temperature sensor;

s2, the controller controls the first motor to start, the first motor drives the first threaded column to rotate, the first threaded column rotates to drive the first fixing plate to move upwards, and the scraping plate is driven to move upwards when the first fixing plate moves upwards so as to adjust the paving height of asphalt;

s3, according to the opening degree of the electromagnetic valve and the rising height of the scraping plate, the controller controls the second motor to start, the second motor starts to drive the second threaded column to rotate, the second threaded column drives the side baffle plates to move along the surface of the scraping plate through threaded connection with the supporting plate, and the gap between the two side baffle plates is reduced;

s4, detecting a room temperature value by the second temperature sensor, controlling the calibration electromagnet to be electrified to have magnetism by the controller according to the temperature difference value detected by the first temperature sensor and the second temperature sensor, and driving the movable plate stretching buffer spring to move away from the side baffle plate end by the calibration electromagnet through magnetic repulsive force of the calibration electromagnet and the magnetic block, wherein a gap between the two movable plates is further reduced;

s5, after the asphalt is paved by the cooperation of the scraping plate and the moving plate, the controller controls the second motor to start to drive the side baffle plate and the moving plate to move along the surface of the scraping plate, and asphalt adhered on the surface of the scraping plate is scraped clean;

s6, the controller controls the second motor to drive the side baffle to reversely move to the original position, at the moment, the controller controls the calibration electromagnet to be powered off, and the buffer spring drives the movable plate to restore to the original position under the action of self elastic force;

s7, the controller controls the first electric telescopic rod and the second electric telescopic rod to start together so as to drive the scraper to scrape asphalt adhered to the surface of the movable plate.

Compared with the prior art, the application has the beneficial effects that:

1. in operation, the first motor drives the first threaded column to rotate, and then the first threaded column and the first fixed plate are matched, so that the first fixed plate moves in the vertical direction, the height of the scraping plate is adjusted, the first fixed plate moves stably in the vertical direction through the matching of the positioning column and the first fixed plate, before the first threaded column rotates, the movable plate is driven to move downwards through the matching of the bottom electromagnet and the ferromagnetic limiting block, the limiting column is separated from the corresponding jack, the tension spring is in a tension state, the limitation on the positions of the fixed ring and the first threaded column is relieved, when the first threaded column does not need to be rotated, the movable plate is loosened, and then the tension spring drives the movable plate to move upwards, so that the limiting column is inserted into the jack, the positions of the fixed ring and the first threaded column are limited, the first threaded column and the ferromagnetic limiting block are prevented from rotating due to non-human factors, the vertical shaking of the scraping plate is avoided, the movable plate moves stably in the vertical direction through the matching of the second fixed plate and the limiting plate, and the limiting plate is prevented from being separated from the first rectangular hole through the matching of the second rectangular hole and the ferromagnetic limiting block;

2. the asphalt paving width is limited through the two side baffles, asphalt is prevented from sliding away from two sides of the scraping plate, the second threaded column is driven to rotate through the second motor, then the second threaded column moves relative to the supporting plate, the distance between the two side baffles is adjusted, accordingly, the width of asphalt scraping by the scraping plate can be adjusted, when the second threaded column does not need to rotate, the electric inserting rod is driven to penetrate through the corresponding positioning hole, the rotary table and the second threaded column are further fixed relative to the supporting plate, and the second threaded column is prevented from rotating relative to the supporting plate due to non-human factors.

3. According to the application, the problems of poor paving flatness caused by self expansion and contraction principle during high-temperature molten asphalt paving are jointly solved by arranging the first temperature sensor, the second temperature sensor, the calibration electromagnet, the magnetic block, the movable plate and the like, during actual use, the volume of asphalt falling along the blanking pipe is determined by the electromagnetic valve, then the first motor is controlled by the controller to start to drive the scraping plate to rise to a certain height to adjust paving thickness, the second motor is controlled according to the opening size of the electromagnetic valve to drive the moving distance of the side baffle plate, so that asphalt is ensured to be positioned in the scraping plate and the side baffle plate, the controller is controlled to drive the magnetic block and the movable plate to move a certain distance through magnetic repulsion force when the calibration electromagnet is electrified, the asphalt expansion and contraction volume is adjusted, road surface paving flatness is ensured, the process can effectively adjust the expansion and contraction characteristics of asphalt, the distance between the two movable plates is adjusted in a self-adaption mode, the required paving width is met, and the actual paving efficiency is further improved jointly.

4. According to the application, through the mutual matching of the components such as the first electric telescopic rod, the second electric telescopic rod and the scraper, the problem of cleaning residual asphalt residues on the surfaces of the scraper and the movable plate is solved, after the paving is completed, the second motor drives the side baffle plate and the movable plate to move on the surfaces of the scraper so as to clean the residual asphalt residues on the surfaces of the scraper, meanwhile, when the second motor drives the side baffle plate to move to the minimum value, even if the temperature difference value detected by the first temperature sensor and the second temperature sensor still exists at the moment, the controller still actively controls the calibration electromagnet to be powered off, the movable plate is driven to restore to the original position under the elastic force of the buffer spring, and at the moment, the first electric telescopic rod and the second electric telescopic rod are matched together to drive the scraper to move, so that the surfaces of the movable plate can be thoroughly and effectively cleaned.

5. This application is to further prescribing a limit to asphalt paving machine construction technology for municipal road, guarantees the planarization and the stability of asphalt construction to can thoroughly effectual clear away movable plate and scraper blade surface remaining pitch residue, and then guarantee the clean and tidy performance of device, avoid causing the hindrance to subsequent processing.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate the application and together with the embodiments of the application, serve to explain the application.

In the drawings:

FIG. 1 is a schematic view of the overall structure of the present application;

FIG. 2 is a schematic view of the structure of the scraper of the present application;

FIG. 3 is a schematic view of the structure of the adjusting assembly of the present application;

FIG. 4 is a schematic view of the elastic assembly of the present application;

FIG. 5 is an enlarged schematic view of FIG. 2A;

FIG. 6 is a schematic top view in partial cross-section of the flights and side guards of the application;

FIG. 7 is an enlarged schematic view of FIG. 6 at B;

fig. 8 is a process flow diagram of the present application.

In the figure: 1. a body; 2. a blanking pipe; 3. a fixed block; 4. a universal wheel; 5. a scraper; 6. side baffles; 7. a first fixing plate; 8. a first threaded post; 9. positioning columns; 10. a first motor; 11. a fixing ring; 12. a jack; 13. a movable plate; 14. a tension spring; 15. a second fixing plate; 16. a first rectangular hole; 17. a limiting plate; 18. a second rectangular hole; 19. a ferromagnetic limiting block; 20. a support plate; 21. a second threaded post; 22. a second motor; 23. a turntable; 24. positioning holes; 25. an electric inserting rod; 26. a handle; 27. a limit column; 28. a chute; 29. a first electric telescopic rod; 30. a second electric telescopic rod; 31. a scraper; 32. a controller; 33. a hopper; 34. a bellows; 35. calibrating an electromagnet; 36. a magnetic block; 37. a moving plate; 38. and a buffer spring.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application; all other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

First embodiment

The application is given by fig. 1 to 4, the application includes the organism 1, one side of organism 1 is equipped with controller 32, each electrical component of controller 32 electrical control, the inside of organism 1 is equipped with hopper 33, the bottom of hopper 33 passes organism 1 and is equipped with blanking pipe 2 through the solenoid valve, the opening size of blanking pipe 2 can be controlled to the solenoid valve, the inside pitch of hopper 33 can directly fall to subaerial follow-up paving work along blanking pipe 2, the bottom of organism 1 is equipped with a plurality of fixed blocks 3, the bottom of fixed block 3 is equipped with universal wheel 4, the below of organism 1 is equipped with scraper blade 5, both sides of scraper blade 5 all sliding connection has side shield 6, side shield 6 is connected through adjusting part with scraper blade 5, can realize the slip of side shield 6 at the scraper blade 5 surface through adjusting part, simultaneously scraper blade 5 can pave subaerial pitch, side shield 6 can protect the scraper blade 5 both sides, avoid pitch to slide out along the scraper blade 5 both sides and cause the unevenly pave.

Be equipped with first fixed plate 7 on the scraper blade 5, the first screw thread post 8 of the inside threaded connection of first fixed plate 7, first screw thread post 8 runs through first fixed plate 7, the connected mode of first screw thread post 8 and first fixed plate 7 is threaded connection, the top of first fixed plate 7 is equipped with two reference columns 9, reference column 9 runs through first fixed plate 7, the top of reference column 9 and the bottom fixed connection of organism 1 can carry out spacingly through reference column 9 to the removal of first fixed plate 7 effectively, and then improve the stability that first fixed plate 7 removed, guarantee the effect that scraper blade 5 paves ground pitch.

The bottom of organism 1 is equipped with first motor 10, and first motor 10's output and first screw thread post 8 fixed connection start through first motor 10 and drive first screw thread post 8 and rotate, thereby first screw thread post 8 rotates and drives first fixed plate 7 and move on the vertical direction, and then changes the height between scraper blade 5 and the ground, satisfies the adaptability requirement to the asphalt pavement of different road surfaces.

The outer surface of the first threaded column 8 is provided with a limiting component, the limiting component comprises a fixed ring 11 sleeved outside the first threaded column 8, a plurality of jacks 12 are formed in the top of the fixed ring 11, the fixed ring 11 is fixedly connected with the first threaded column 8, the bottom of the fixed ring 11 is provided with a movable plate 13, the top of the movable plate 13 is provided with a limiting column 27, and the movable plate 13 is connected with the machine body 1 through an elastic component.

The elastic component is including setting up in the second fixed plate 15 at fly leaf 13 top, first rectangular hole 16 has been seted up at the top of second fixed plate 15, be equipped with limiting plate 17 in first rectangular hole 16, the bottom of limiting plate 17 and the top fixed connection of fly leaf 13, the top of second fixed plate 15 and the bottom fixed connection of organism 1, the top of fly leaf 13 and the bottom of organism 1 pass through extension spring 14 to be connected, second rectangular hole 18 has all been seted up to the both sides inner wall of first rectangular hole 16, the inboard bottom of second rectangular hole 18 is equipped with spacing electro-magnet, sliding connection has ferromagnetic stopper 19 in second rectangular hole 18, ferromagnetic stopper 19 and limiting plate 17 fixed connection, before first motor 10 drives first screw thread post 8 rotation, controller 32 control limit electro-magnet circular telegram, limiting electro-magnet circular telegram can drive ferromagnetic stopper 19 decline to the minimum with the help of self magnetism, then ferromagnetic stopper 19 drives limiting plate 17 decline to the minimum, limiting plate 17 drives the bottom, limiting plate 13 moves down to the minimum, make spacing post 27 break away from corresponding jack 12, extension spring 14 is in the tensile spring 14 state, remove fixed ring 11 and first screw thread post 8 and first 8 limit stop limiting ring 10 and first screw thread post 8, when first motor 8 stops 8 and stop limiting ring 8, and stop position limiting electro-magnet 8, and 8 make the fixed position of first screw thread post 11 and stop, and stop factor is avoided rotating, and the fixed post 11.

The jacks 12 are uniformly distributed on the fixed ring 11 in circumference, the limiting columns 27 are positioned in one jack 12, two handles 26 are arranged on the machine body 1, and the machine body 1 is convenient to drive to move through the handles 26.

The adjusting component comprises a supporting plate 20, the supporting plate 20 is fixedly connected with the scraping plate 5, one side of the side baffle 6 is contacted with the scraping plate 5, a second motor 22 is arranged on one side, close to the supporting plate 20, of the side baffle 6, a second threaded column 21 is arranged at the output end of the second motor 22, the second threaded column 21 penetrates through the supporting plate 20, the second threaded column 21 is connected with the supporting plate 20 in a threaded mode, a fixed component is arranged on the other side of the second threaded column 21, the second motor 22 is controlled to start through a controller 32, the second motor 22 starts to drive the second threaded column 21 to rotate, the second threaded column 21 rotates to drive the side baffle 6 to horizontally move through a screw principle of the supporting plate 20, the distance between the two side baffles 6 is changed, asphalt paving width can be adjusted, asphalt adhered to the surface of the scraping plate 5 can be cleaned after asphalt paving is finished, and the clean performance of the surface of the scraping plate 5 is guaranteed.

The fixed subassembly includes carousel 23, carousel 23 and second screw thread post 21 keep away from backup pad 20 one side fixed connection, have seted up a plurality of locating holes 24 on the carousel 23, one side of backup pad 20 is equipped with two electronic inserted bars 25, and locating hole 24 is run through to the one end of electronic inserted bar 25, and when the carousel 23 need not rotate apart from finishing adjusting to the side shield 6, the drive electronic inserted bar 25 runs through corresponding locating hole 24, and then makes carousel 23 and second screw thread post 21 fixed relative backup pad 20, avoids second screw thread post 21 to rotate because of non-human factor relative backup pad 20.

Working principle: during operation, the controller 32 controls the first motor 10 to start to drive the first threaded column 8 to rotate, through the cooperation of the first threaded column 8 and the first fixed plate 7, make the first fixed plate 7 move in the vertical direction, and then adjust the height of the scraping plate 5, through the cooperation of the locating column 9 and the first fixed plate 7, make the first fixed plate 7 move steadily in the vertical direction, before the first threaded column 8 rotates, the controller 32 controls the limit electromagnet to electrify, the limit electromagnet electrifies and possesses magnetism and then attracts the ferromagnetic limit block 19 to make it descend to the lowest point along the second rectangular hole 18, the ferromagnetic limit block 19 descends, can drive the limiting plate 17 and the movable plate 13 at the bottom of the limit plate, make the limiting column 27 break away from the corresponding jack 12, the extension spring 14 is in the tensile state, remove the limit to the position of the fixed ring 11 and the first threaded column 8, when the first threaded column 8 does not need to rotate, and then the extension spring 14 drives the movable plate 13 to move upwards, make the limit column 27 insert into the jack 12, the position of the fixed ring 11 and the first threaded column 8 is avoided by the first limit plate 17 and the second threaded column 17 to move steadily along the second rectangular hole 17, the limit plate 17 and the second rectangular hole 17 is avoided.

The asphalt paving width is limited through the two side baffles 6, asphalt is prevented from sliding away from two sides of the scraping plate 5, the second motor 22 is controlled by the controller 32 to drive the second threaded column 21 to rotate, the second threaded column 21 moves relative to the supporting plate 20, the distance between the two side baffles 6 is adjusted, accordingly, the width of asphalt scraping by the scraping plate 5 can be adjusted, when the second threaded column 21 does not need to rotate, the electric inserting rod 25 is driven to penetrate through the corresponding positioning hole 24, the electric inserting rod 25 is fixed relative to the supporting plate 20, the turntable 23 and the second threaded column 21 are fixed relative to the supporting plate 20, the device is stable in structure, high in movement efficiency, capable of adaptively adjusting the height and width of asphalt paving, high in paving efficiency and good in paving effect, and accurate in adjustment.

Second embodiment

As shown in fig. 5 to 7, according to the first embodiment, after the hot-melted asphalt in the hopper 33 falls to the ground along the blanking pipe 2 during actual operation, the volume of the asphalt is reduced due to the principle of thermal expansion and contraction, and then the uneven road surface is caused during paving, and even the cracking of the road surface is caused, meanwhile, after long-time use, the surfaces of the scraping plate 5 and the side baffle 6 are adhered with part of asphalt, which can hinder the subsequent paving operation, in order to solve the above problems, the degree of thermal expansion and contraction of the asphalt under different environmental conditions is improved, and the paving smoothness of the road surface is ensured, and after the paving is completed, the asphalt paving machine for the municipal road is further provided with: the inside temperature value that is equipped with first temperature sensor in blanking pipe 2 is used for detecting the pitch that flows along blanking pipe 2, then this temperature value is the temperature initial value of pitch, one side surface that scraper blade 5 is close to blanking pipe 2 is equipped with second temperature sensor and is used for detecting the temperature value on scraper blade 5 surface, this temperature value is external environment temperature value, then there is the difference in temperature that first temperature sensor and second temperature sensor detected, this difference can lead to the pitch volume that flows along blanking pipe 2 to reduce by the principle of pitch expend with heat and contract with cold, and then after having determined to pave and height and width, because pitch volume reduces, and pave the height and can't be adjusted, consequently only can be through the regulation to the width of paving and then guarantee the planarization of paving.

The spout 28 has been seted up to one side of keeping away from scraper 5 of backup pad 20, is equipped with first electric telescopic handle 29 in the spout 28, and the output of first electric telescopic handle 29 is equipped with second electric telescopic handle 30, and first electric telescopic handle 29 and second electric telescopic handle 30 place perpendicularly, and the output of second electric telescopic handle 30 is equipped with scraper 31, and first electric telescopic handle 29 and second electric telescopic handle 30 drive scraper 31 motion jointly, and then can scrape away the pitch of gluing.

The side shield 6 is kept away from one side of backup pad 20 and is equipped with bellows 34, the other end of bellows 34 is equipped with movable plate 37, the bellows 34 is close to one side of side shield 6 and is equipped with calibration electromagnet 35, the bellows 34 is close to one side of movable plate 37 and is equipped with magnetic block 36, calibration electromagnet 35 is the same with magnetic block 36's magnetism, through the circular telegram electric current size of control calibration electromagnet 35, and then can control the travel distance of magnetic block 36, further can increase the distance between movable block 37 and the side shield 6, satisfy the adaptability change of paving width when pitch volume reduces, wherein bellows 34 mainly plays the connection guard action, can guarantee to realize the removal of movable plate 37.

The temperature of asphalt in the hopper 33 is 130-170 ℃, the height of the scraping plate 5 is controlled by controlling the height of the scraping plate during asphalt pavement, and the width of asphalt pavement is controlled by controlling the distance between the two side baffles 6, so that the paving smoothness of the asphalt pavement can be ensured.

When the distance between the side baffle 6 and the supporting plate 20 is minimum, the scraper 31 contacts with one side of the side baffle 6 away from the supporting plate 20, the scraper 31 is an L-shaped sliding plate, a buffer spring 38 is arranged in the corrugated pipe 34, one end of the buffer spring 38 is fixedly connected with one side of the side baffle 6, the other end of the buffer spring 38 is fixedly connected with one side of the moving plate 37, the scraper 31 contacts with one side of the side baffle 6 away from the supporting plate 20, namely, after the electromagnet 35 is powered off, the moving plate 37 can be driven to reversely move to the minimum distance under the elastic action of the buffer spring 38, and then the scraper 31 contacts with the moving plate 37, so that the control of the moving direction and the distance of the scraper 31 can be realized by means of the joint cooperation of the first electric telescopic rod 29 and the second electric telescopic rod 30, and asphalt adhered to the surface of the moving plate 37 can be removed.

When the device is used, the machine body 1 is moved to a proper position, high-temperature asphalt materials are filled in the hopper 33, the opening size of the electromagnetic valve is controlled through the controller 32 to control the volume of the high-temperature asphalt materials discharged along the blanking pipe 2, the limit electromagnet is controlled to be electrified, the limit electromagnet is controlled to descend, the ferromagnetic limit block 19 is further driven to be separated from the jack 12 by the limit electromagnet, the first motor 10 is started to drive the first threaded column 8 to rotate so as to adjust the height of the first fixed plate 7 to adjust the paving height of the scraping plate 5, after the height adjustment of the scraping plate 5 is completed, in order to ensure that asphalt on a road surface is completely paved, no excessive or too little situation causes waste or cracks to appear on the spiral road surface, the electric inserting rod 25 is started to be separated from the positioning hole 24 according to the opening size of the electromagnetic valve, the first electric telescopic rod 29 and the second electric telescopic rod 30 are respectively started to drive the scraping plate 31 to be separated from the side baffle 6, the second motor 22 is started to drive the second threaded column 21 to rotate, the second threaded column 21 is rotated to drive the scraping plate 5 to move along the side baffle 6 to meet the actual paving width, and the paving quality can be adjusted so as to ensure that paving quality is large.

At this moment, this pitch material falls to ground along blanking pipe 2, first temperature sensor detects the inside pitch temperature value of blanking pipe 2, simultaneously the second temperature sensor detects external temperature value, can calculate pitch and external environment's difference in temperature effectively with the help of two temperature values, simultaneously with the help of the velocity of movement of organism 1 bottom universal wheel 4 and the distance between scraper blade 5 and blanking pipe 2, calculate the time that scraper blade 5 arrived blanking pipe 2 bottom, and combine heat exchange efficiency and pitch expend with heat and contract with cold efficiency, can calculate effectively that pitch falls to ground along blanking pipe 2 and then to the volume variation when spreading with scraper blade 5, at this moment because pitch's volume is reduced, in order to satisfy the volume accuracy when actually spreading to pitch, because pitch material is too little causes the road surface to take place the condition of breaking when avoiding spreading, then controller 32 can control the circular telegram of calibrating electromagnet 35, can produce magnetic force after the circular telegram of calibrating electromagnet 35, with the help of the magnetic repulsion that exists between calibrating electromagnet 35, can effectively bring magnetic block 36 and tip's movable plate 37 along 6 side of keeping away from, and the volume variation between 6 side of this is reduced, and further realization of the volume variation to pitch.

Meanwhile, when asphalt is paved actually, the asphalt can impact and extrude the moving plates 37 on two sides, and the moving plates 37 can be effectively damped and buffered by the aid of the buffer springs 38, so that stability of asphalt paving is guaranteed, and the moving plates 37 are prevented from being offset and damaged due to long-time asphalt extrusion.

In the continuous paving process of the machine body 1, as the scraping plate 5 is in contact with the asphalt on the road surface at this time, the temperature value detected by the second temperature sensor on the surface of the scraping plate 5 rises to a certain value, and when the external temperature value is based on the initial value detected by the second temperature sensor, the high-temperature asphalt falling along the blanking pipe 2 subsequently reaches the road surface, as the asphalt which is paved still has an residual temperature, the residual temperature has an influence on the external environment temperature, the heat exchange efficiency of the asphalt falling along the blanking pipe 2 can be reduced, the reduction of the volume of the asphalt can be synchronously reduced, at this time, the controller 32 can control the energizing current of the calibration electromagnet 35 to be reduced, and then the magnetic force of the calibration electromagnet 35 to the magnetic block 36 is reduced, and the distance between the two moving plates 37 is adaptively changed, so that the change of the volume of the asphalt is satisfied.

In order to further meet the actual requirement, the controller 32 performs self-adaptive adjustment accounting according to the actual external environment temperature and a plurality of temperature values such as the first temperature sensor and the second temperature sensor, and further adjusts the current of the calibration electromagnet 35, thereby meeting the requirement of the actual environment.

After this organism 1 is accomplished and is spread, because the stickness of pitch itself, scraper blade 5 and movable plate 37 surface can glue some pitch, in order to clear away this pitch, guarantees its neatly nature constantly, avoids causing the influence to subsequent spreading, then controller 32 can control second motor 22 start, and second motor 22 start can drive movable plate 37 and remove along scraper blade 5 surface through the screw drive with backup pad 20, and then can clear away the remaining pitch in scraper blade 5 surface.

The asphalt residues on the surface of the moving plate 37 also need to be cleaned, at this time, when the second motor 22 reversely drives the moving plate 37 to recover, at this time, because the asphalt residues remain on the surface of the moving plate 37, the temperature value detected by the second temperature sensor is still greater than the initial room temperature value, the calibration electromagnet 35 is still electrified and has magnetism, a gap exists between the moving plate 37 and the side baffle 6, and the scraper 31 cannot scrape the residual asphalt residues on the surface of the moving plate 37 due to the gap of the scraper 31.

In order to solve the above problem, it is ensured that the surface of the movable plate 37 can be cleaned, when the second motor 22 drives the second threaded column 21 to rotate reversely to the maximum extent, that is, after the side baffle 6 is restored to the original position, the controller 32 can control the calibration electromagnet 35 to be powered off even if the temperature value detected by the second temperature sensor is still greater than the original temperature value, at this time, the movable plate 37 can be restored to the original position under the action of the elastic force of the buffer spring 38, and then the scraper 31 is driven to scrape residual asphalt on the surface of the movable plate 37 under the combined action of the first electric telescopic rod 29 and the second electric telescopic rod 30.

The device not only can be according to the clearance of two movable plates 37 of expansion with heat and contraction with cold principle self-adaptation regulation of pitch, and then to spreading the width and adjust, realize the complete paver to pitch, guarantee the effect of spreading, improve the efficiency of spreading, simultaneously when striking off the residual pitch on scraper blade 5 and movable plate 37 surface, the on-off electricity of calibrating electromagnet 35 can be adjusted in the self-adaptation to controller 32, and then satisfy scraper 31 to the joint of movable plate 37 fixed and strike off, further guarantee the cleaning performance of device, satisfy actual working requirement.

Third embodiment

As shown in fig. 8, a construction process of an asphalt paver for municipal roads, which relates to an asphalt paver for municipal roads, comprises the steps of:

s1, moving a machine body 1 to a proper position, placing molten asphalt in a hopper 33, controlling an electromagnetic valve in a blanking pipe 2 to be opened by a controller 32, enabling the asphalt in the hopper 33 to fall to the ground along the blanking pipe 2, and detecting a temperature value in the blanking pipe 2 by a first temperature sensor;

s2, the controller 32 controls the first motor 10 to start, the first motor 10 drives the first threaded column 8 to rotate, the first threaded column 8 rotates to drive the first fixing plate 7 to move upwards, and the scraping plate 5 is driven to move upwards when the first fixing plate 7 moves upwards so as to adjust the paving height of asphalt;

s3, according to the opening degree of the electromagnetic valve and the ascending height of the scraping plate 5, the controller 32 controls the second motor 22 to start, the second motor 22 starts to drive the second threaded column 21 to rotate, the second threaded column 21 drives the side baffle plates 6 to move along the surface of the scraping plate 5 through threaded connection with the supporting plate 20, and the gap between the two side baffle plates 6 is reduced;

s4, detecting a room temperature value by a second temperature sensor, controlling the calibration electromagnet 35 to be electrified and magnetic by the controller 32 according to the temperature difference value detected by the first temperature sensor and the second temperature sensor, and driving the movable plates 37 to stretch the buffer spring 38 to move towards the end far away from the side baffle 6 by the magnetic repulsive force of the calibration electromagnet 35 and the magnetic block 36, wherein the gap between the two movable plates 37 is further reduced;

s5, after the asphalt is paved by the cooperation of the scraping plate 5 and the moving plate 37, the controller 32 controls the second motor 22 to start to drive the side baffle 6 and the moving plate 37 to move along the surface of the scraping plate 5, and asphalt adhered on the surface of the scraping plate 5 is scraped clean;

s6, the controller 32 controls the second motor 22 to drive the side baffle 6 to reversely move to the original position, at the moment, the controller 32 controls the calibration electromagnet 35 to be powered off, and the buffer spring 38 drives the movable plate 37 to restore to the original position under the action of self elastic force;

and S7, the controller 32 controls the first electric telescopic rod 29 and the second electric telescopic rod 30 to start together so as to drive the scraper 31 to scrape asphalt adhered on the surface of the moving plate 37.

This application is to further prescribing a limit to asphalt paving machine construction technology for municipal road, guarantees the planarization and the stability of asphalt construction to can thoroughly effectual clear away movable plate 37 and scraper blade 5 surface remaining pitch residue, and then guarantee the clean and tidy performance of device, avoid causing the hindrance to subsequent processing.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. Asphalt paving machine for municipal road, including organism (1), its characterized in that: one side of the machine body (1) is provided with a controller (32), the inside of the machine body (1) is provided with a hopper (33), the bottom of the hopper (33) penetrates through the machine body (1) and is provided with a blanking pipe (2) through an electromagnetic valve, a first temperature sensor is arranged inside the blanking pipe (2) and used for detecting the temperature value of asphalt flowing out along the blanking pipe (2), the lower part of the machine body (1) is provided with a scraping plate (5), the outer surface of one side of the scraping plate (5) close to the blanking pipe (2) is provided with a second temperature sensor and used for detecting the temperature value of the surface of the scraping plate (5), two sides of the scraping plate (5) are respectively connected with a side baffle plate (6), the side baffle plate (6) is connected with the scraping plate (5) through an adjusting component, one side of the scraping plate (5) away from the blanking pipe (2) is provided with a first fixing plate (7), the inner thread of the first fixing plate (7) is connected with a first thread column (8), the bottom of the machine body (1) is provided with a first motor (10), the output end of the first motor (10) is close to the one side of the blanking pipe (2) is provided with the first thread column (8), and the first thread column (8) is provided with a first thread limiting component (8).

The adjusting assembly comprises a supporting plate (20), the supporting plate (20) is fixedly connected with the scraping plate (5), one side of the side baffle (6) is contacted with the scraping plate (5), a second motor (22) is arranged on one side, close to the supporting plate (20), of the side baffle (6), a second threaded column (21) is arranged at the output end of the second motor (22), the second threaded column (21) is in threaded connection with the supporting plate (20), and a fixing assembly is arranged on the other side of the second threaded column (21);

a sliding groove (28) is formed in one side, far away from the scraping plate (5), of the supporting plate (20), a first electric telescopic rod (29) is arranged in the sliding groove (28), a second electric telescopic rod (30) is arranged at the output end of the first electric telescopic rod (29), the first electric telescopic rod (29) and the second electric telescopic rod (30) are vertically arranged, and a scraper (31) is arranged at the output end of the second electric telescopic rod (30);

a corrugated pipe (34) is arranged on one side, far away from the supporting plate (20), of the side baffle (6), a movable plate (37) is arranged at the other end of the corrugated pipe (34), a calibration electromagnet (35) is arranged on one side, close to the side baffle (6), of the corrugated pipe (34), a magnetic block (36) is arranged on one side, close to the movable plate (37), of the corrugated pipe (34), and the magnetism of the calibration electromagnet (35) is identical with that of the magnetic block (36);

controlling the moving distance of the second motor (22) to drive the side baffle (6) according to the rising height of the scraping plate (5) driven by the first motor (10) and the opening size of the electromagnetic valve, and controlling the energizing current of the calibrating electromagnet (35) to be larger by the controller (32) when the temperature difference value detected by the first temperature sensor and the second temperature sensor is larger, wherein the moving distance of the moving plate (37) to the end far from the side baffle (6) is larger; when the distance between the side baffle (6) and the support plate (20) is minimum, the calibrating electromagnet (35) is powered off, and the scraper (31) is in contact with the side wall of the movable plate (37).

2. The asphalt paver for municipal roads according to claim 1, wherein: the limiting assembly comprises a fixed ring (11) sleeved outside a first threaded column (8), a plurality of jacks (12) are formed in the top of the fixed ring (11), the jacks (12) are uniformly distributed on the fixed ring (11) in circumference, the fixed ring (11) is fixedly connected with the first threaded column (8), a movable plate (13) is arranged at the bottom of the fixed ring (11), a limiting column (27) is arranged at the top of the movable plate (13), the movable plate (13) is connected with the machine body (1) through an elastic assembly, and the limiting column (27) is located in one of the jacks (12).

3. The asphalt paver for municipal roads according to claim 2, wherein: the elastic component is including setting up in the second fixed plate (15) at fly leaf (13) top, first rectangular hole (16) have been seted up at the top of second fixed plate (15), be equipped with limiting plate (17) in first rectangular hole (16), the bottom of limiting plate (17) and the top fixed connection of fly leaf (13), the top of second fixed plate (15) and the bottom fixed connection of organism (1), the top of fly leaf (13) is connected through extension spring (14) with the bottom of organism (1), second rectangular hole (18) have all been seted up to the both sides inner wall of first rectangular hole (16), the inboard bottom of second rectangular hole (18) is equipped with spacing electro-magnet, is equipped with ferromagnetic stopper (19) in second rectangular hole (18), ferromagnetic stopper (19) and limiting plate (17) fixed connection.

4. The asphalt paver for municipal roads according to claim 1, wherein: the temperature of asphalt in the hopper (33) is 130-170 ℃, the height of the scraping plate (5) is controlled by controlling the height of the scraping plate, and the width of asphalt pavement is controlled by controlling the distance between the two side baffles (6).

5. The asphalt paver for municipal roads according to claim 1, wherein: the fixed subassembly includes carousel (23), carousel (23) and second screw thread post (21) keep away from backup pad (20) one side fixed connection, a plurality of locating holes (24) have been seted up on carousel (23), one side of backup pad (20) is equipped with two electronic inserted bars (25), locating hole (24) are run through to one end of electronic inserted bar (25).

6. The asphalt paver for municipal roads according to claim 1, wherein: the machine body (1) is provided with two handles (26), the bottom of the machine body (1) is provided with a plurality of fixed blocks (3), the bottom of the fixed blocks (3) is provided with universal wheels (4), and the controller (32) electrically controls all electric elements.

7. The asphalt paver for municipal roads according to claim 1, wherein: two positioning columns (9) are arranged above the first fixing plate (7), the positioning columns (9) penetrate through the first fixing plate (7), and the top of each positioning column (9) is fixedly connected with the bottom of the machine body (1).

8. The asphalt paver for municipal roads according to claim 1, wherein: the scraper (31) is an L-shaped sliding plate, and the scraper (31) is contacted with one side surface of the side baffle (6) far away from the supporting plate (20).

9. The asphalt paver for municipal roads according to claim 1, wherein: the corrugated pipe (34) is internally provided with a buffer spring (38), one end of the buffer spring (38) is fixedly connected with one side of the side baffle plate (6), and the other end of the buffer spring (38) is fixedly connected with one side of the movable plate (37).

10. A construction process of an asphalt paver for municipal roads, which performs asphalt paving using the asphalt paver for municipal roads according to claim 9, comprising the steps of:

s1, moving the machine body (1) to a proper position, placing molten asphalt in the hopper (33), controlling an electromagnetic valve in the blanking pipe (2) to be opened by the controller (32), enabling the asphalt in the hopper (33) to fall to the ground along the blanking pipe (2), and detecting a temperature value in the blanking pipe (2) by the first temperature sensor;

s2, the controller (32) controls the first motor (10) to start, the first motor (10) drives the first threaded column (8) to rotate, the first threaded column (8) rotates to drive the first fixing plate (7) to move upwards, and the first fixing plate (7) drives the scraping plate (5) to move upwards when moving upwards so as to adjust the paving height of asphalt;

s3, according to the opening degree of the electromagnetic valve and the rising height of the scraping plate (5), the controller (32) controls the second motor (22) to start, the second motor (22) starts to drive the second threaded column (21) to rotate, and the second threaded column (21) drives the side baffle plates (6) to move along the surface of the scraping plate (5) through threaded connection with the supporting plate (20), so that the gap between the two side baffle plates (6) is reduced;

s4, detecting a room temperature value by the second temperature sensor, controlling the calibration electromagnet (35) to be electrified and provided with magnetism by the controller (32) according to the temperature difference value detected by the first temperature sensor and the second temperature sensor, and driving the movable plate (37) to stretch the buffer spring (38) to move towards the end far away from the side baffle (6) by the magnetic repulsive force of the calibration electromagnet (35) and the magnetic block (36), wherein the gap between the two movable plates (37) is further reduced;

s5, after the asphalt is paved by the scraper (5) and the moving plate (37) in a matched mode, the controller (32) controls the second motor (22) to start to drive the side baffle (6) and the moving plate (37) to move along the surface of the scraper (5), and asphalt adhered to the surface of the scraper (5) is scraped cleanly;

s6, the controller (32) controls the second motor (22) to drive the side baffle (6) to reversely move to the original position, at the moment, the controller (32) controls the calibration electromagnet (35) to be powered off, and the buffer spring (38) drives the movable plate (37) to restore to the original position under the action of self elastic force;

s7, the controller (32) controls the first electric telescopic rod (29) and the second electric telescopic rod (30) to be started together to drive the scraper (31) to scrape asphalt adhered to the surface of the movable plate (37).