CN112080989B

CN112080989B - Scraper asphalt material clearing device for road and bridge construction asphalt paver

Info

Publication number: CN112080989B
Application number: CN202010944807.6A
Authority: CN
Inventors: 来荣国; 张恩桥; 李飞; 毛盛泰; 黄勇; 何燕芹
Original assignee: China Railway 25th Bureau Group Co Ltd; Fourth Engineering Co Ltd of China Railway 25th Bureau Group Co Ltd; Sixth Engineering Co Ltd of China Railway 25th Bureau Group Co Ltd
Current assignee: China Railway 25th Bureau Group Co Ltd; Fourth Engineering Co Ltd of China Railway 25th Bureau Group Co Ltd; Sixth Engineering Co Ltd of China Railway 25th Bureau Group Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-04-20
Anticipated expiration: 2040-09-10
Also published as: CN112080989A

Abstract

The invention discloses a scraper asphalt material clearing device for a road and bridge construction asphalt paver, which comprises a paver body, trundles, a hopper, a pull rope, a fixed pulley and a reset coil spring, wherein the bottom of the paver body is provided with a rotating shaft, the outer ends of the front side and the rear side of the rotating shaft are respectively connected with the trundles in a welding manner, the bottom of the hopper is provided with a pressing plate, the left end of a bottom plate is connected with a first scraper, the fixed pulley is connected onto the inner wall of the hopper through a bolt, limiting grooves are formed in the connecting plug board and the first scraper, and locking rods are connected with the limiting grooves. This road and bridge construction is scraper blade pitch material clearing device for asphalt paving machine, both sides all are provided with the connection doctor-bar around the first scraper blade, and connect the doctor-bar and be connected with the inside spread groove of first scraper blade through connecting the picture peg, when connecting the doctor-bar and appearing damaging like this, are convenient for dismantle the change to connecting the doctor-bar, and then bring conveniently for staff's operation.

Description

Scraper asphalt material clearing device for road and bridge construction asphalt paver

Technical Field

The invention relates to the technical field of road and bridge construction, in particular to a scraper asphalt material removing device for an asphalt paver for road and bridge construction.

Background

In road construction, there are asphalt roads and cement roads, and in the construction of the asphalt roads, asphalt needs to be laid on the road surface, usually, the mixture of the asphalt is poured into an asphalt spreader, the mixture is spread evenly on a road base layer through a blanking mechanism on the asphalt spreader, and then preliminary compaction and leveling are performed, so the asphalt spreader is common in the construction of roads and bridges.

However, the scrapers of the existing asphalt pavers have some disadvantages in use, such as:

firstly, a scraper is usually used in a hopper of an asphalt paver, when the asphalt mixture is fed, the asphalt mixture is turned through the scraper, so that the asphalt mixture falls better, the temperature of the asphalt mixture is reduced along with the increase of the storage time of the asphalt mixture, the asphalt mixture is easy to adhere to the inner wall of the hopper and is not easy to clean, and inconvenience is brought to the use of the hopper in the later period;

secondly, along with the decline of bituminous mixture temperature, also can appear gluing the phenomenon of material on the scraper blade, and the material on the scraper blade is difficult to be cleared up to reduced the practicality to the scraper blade, also reduced the availability factor of whole hopper, so we have proposed a road and bridge construction scraper blade pitch material clearing device for asphalt paving machine, so that solve the problem of proposing in the aforesaid.

Disclosure of Invention

The invention aims to provide a scraper asphalt material clearing device for a road and bridge construction asphalt paver, which aims to solve the problems that the prior scraper in the market is usually used in a hopper of the asphalt paver, when the asphalt mixture is fed, the asphalt mixture is turned through a scraper, so that the asphalt mixture falls better, the temperature of the asphalt mixture is reduced along with the increase of the storage time of the asphalt mixture, the asphalt mixture is easy to adhere to the inner wall of the hopper and is not easy to clear, the use of the hopper is inconvenient in the later period, the phenomenon of adhering materials can also occur on the scraper along with the reduction of the temperature of the asphalt mixture, and the materials on the scraper are not easy to clear, so that the practicability of the scraper is reduced, and the use efficiency of the whole hopper is also reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a scraper asphalt material clearing device for a road and bridge construction asphalt paver comprises a paver body, trundles, a hopper, a stay cord, a fixed pulley and a reset coil spring, wherein a rotating shaft is installed at the bottom of the paver body, the outer ends of the front side and the rear side of the rotating shaft are respectively welded with the trundles, the trundles are connected with a reciprocating screw rod through a transmission belt, the reciprocating screw rod is arranged in the hopper, the hopper is installed on the right side of the paver body, a pressing plate is arranged at the bottom of the hopper, the outer wall of the reciprocating screw rod is connected with a mounting plate, the left side of the mounting plate is connected with a limiting plate, the limiting plate is connected with the hopper through a groove, the groove is arranged on the inner wall of the hopper, a connecting plate is arranged at the top end of the mounting plate, one end, far away from the mounting plate, the one end of first scraper blade and stay cord is connected, and the other end of stay cord passes fixed pulley and the spring that restores to the throne is connected, fixed pulley bolted connection is on the inner wall of hopper, the spring that restores to the throne is installed on the fixed axle, and the fixed axle keeps away from the one end of first scraper blade and the hopper is connected, the bottom of mounting panel is provided with the second scraper blade, both sides all are provided with the connection doctor-bar around the first scraper blade, and are connected with the connection picture peg on the connection doctor-bar, the connection picture peg is connected through spread groove and first scraper blade, and the inside of first scraper blade is seted up to the spread groove, the spacing groove has all been seted up to the inside of connection picture peg and first scraper blade.

Preferably, the connection mode of the reciprocating screw rod and the hopper is bearing connection, and the thread turning directions of the front end and the rear end of the reciprocating screw rod are opposite.

Preferably, the mounting plates are connected to the multi-filament rod by a screw thread, and 2 mounting plates are provided, and the 2 mounting plates are symmetrically distributed about the longitudinal center line of the hopper.

Preferably, limiting plate and mounting panel formula structure as an organic whole, and the limiting plate passes through the recess and the hopper constitutes sliding construction to the link of limiting plate and recess is "T" font.

Preferably, the connecting plate is welded connection with bottom plate and mounting panel respectively, and the bottom plate is the slope form to there is the interval between the least significant end of bottom plate and the reciprocal lead screw.

Preferably, the first scraper blade is connected with the bottom plate in a rotating manner, and the first scraper blade and the bottom plate are always in a V shape.

Preferably, one end of the return coil spring, which is far away from the pull rope, is welded with the fixed shaft, and the fixed shaft is connected with the hopper through a bearing.

Preferably, the second scraper blade and the mounting plate are connected by bolts, and the bottom end of the second scraper blade is inclined.

Preferably, connect doctor-bar and connection picture peg formula structure as an organic whole, and connection picture peg and spread groove are the block connection to be threaded connection between spacing groove and the lock lever inside connection picture peg and the first scraper blade.

Compared with the prior art, the invention has the beneficial effects that: the asphalt material removing device of the scraper for the road and bridge construction asphalt paver,

(1) the reciprocating screw rod is arranged in the hopper and is connected with the rotating shaft in the caster through the transmission belt, the rotating directions of the threads at the front end and the rear end of the reciprocating screw rod are opposite, and the reciprocating screw rod is in threaded connection with the mounting plate, so that when the rotating shaft is driven to rotate by the running of the caster, the reciprocating screw rod can be driven to rotate, the mounting plate connected with the front end and the rear end of the reciprocating screw rod can move back and forth, the mounting plate drives the bottom plate and the first scraper plate to move together to clean the inner wall of the hopper, and the turning of asphalt mixture is not influenced at the same time, the practicability of the paver is improved, and power is saved,

(2) the first scraper blade is rotatably connected with the bottom plate, one end of the first scraper blade is connected with one end of the pull rope, the other end of the pull rope penetrates through the fixed pulley and is connected with the reset coil spring, and one end, far away from the pull rope, of the reset coil spring is welded with the fixed shaft, so that the bottom plate can be driven to move together when moving, and meanwhile, an included angle between the first scraper blade and the bottom plate is adjusted, so that a mixture stuck on the first scraper blade can be shaken off, the first scraper blade can be automatically cleaned, and the later-stage use efficiency of the first scraper blade is ensured;

(3) the front side and the rear side of the first scraper blade are provided with connecting scraper blades, and the connecting scraper blades are connected with the connecting grooves in the first scraper blade through the connecting plugboard, so that when the connecting scraper blades are damaged, the connecting scraper blades can be conveniently detached and replaced, and convenience is brought to operation of workers.

Drawings

FIG. 1 is a schematic overall front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the hopper of the present invention from above;

FIG. 3 is a schematic view of the inside of the hopper in a right view;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is a schematic view of a connection top view structure of a paver body and a rotating shaft according to the present invention;

FIG. 6 is a schematic view of a front cross-sectional structure of the connection of the mounting plate and the limiting plate of the present invention;

FIG. 7 is a schematic view of the connecting top-down structure of the first scraping plate and the connecting inserting plate of the invention.

In the figure: 1. a paver body; 2. a rotating shaft; 3. a caster wheel; 4. a drive belt; 5. a reciprocating screw rod; 6. a hopper; 7. pressing a plate; 8. mounting a plate; 9. a limiting plate; 10. a groove; 11. a connecting plate; 12. a base plate; 13. a first squeegee; 14. pulling a rope; 15. fixing the pulley; 16. a reset coil spring; 17. a fixed shaft; 18. a second squeegee; 19. connecting the scraping blade; 20. connecting the plugboards; 21. connecting grooves; 22. a limiting groove; 23. a locking lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a scraper asphalt material clearing device for a road and bridge construction asphalt paver comprises a paver body 1, a rotating shaft 2, trundles 3, a transmission belt 4, a reciprocating screw rod 5, a hopper 6, a pressing plate 7, a mounting plate 8, a limiting plate 9, a groove 10, a connecting plate 11, a bottom plate 12, a first scraper 13, a pull rope 14, a fixed pulley 15, a reset coil spring 16, a fixed shaft 17, a second scraper 18, a connecting scraper 19, a connecting inserting plate 20, a connecting groove 21, a limiting groove 22 and a locking rod 23, wherein the rotating shaft 2 is installed at the bottom of the paver body 1, the trundles 3 are welded and connected with the outer ends of the front side and the rear side of the rotating shaft 2, the trundles 3 are connected with the reciprocating screw rod 5 through the transmission belt 4, the reciprocating screw rod 5 is arranged inside the hopper 6, the hopper 6 is installed on the right side of the paver body 1, the pressing plate 7 is arranged at the, the left side of the mounting plate 8 is connected with a limiting plate 9, the limiting plate 9 is connected with the hopper 6 through a groove 10, the groove 10 is arranged on the inner wall of the hopper 6, the top end of the mounting plate 8 is provided with a connecting plate 11, one end of the connecting plate 11 far away from the mounting plate 8 is connected with a bottom plate 12, one end of the bottom plate 12 close to the side wall of the hopper 6 is connected with a first scraper 13, the first scraper 13 is connected with one end of a pull rope 14, the other end of the pull rope 14 passes through a fixed pulley 15 and is connected with a reset coil spring 16, the fixed pulley 15 is connected with the inner wall of the hopper 6 through a bolt, the reset coil spring 16 is arranged on a fixed shaft 17, one end of the fixed shaft 17 far away from the first scraper 13 is connected with the hopper 6, the bottom of the mounting plate 8 is provided with a second scraper, connecting plug board 20 is connected with first scraper blade 13 through connecting groove 21, and connecting groove 21 sets up in the inside of first scraper blade 13, and spacing groove 22 has all been seted up to connecting plug board 20 and the inside of first scraper blade 13, and the internal connection of spacing groove 22 has check lock lever 23.

The connection mode of the reciprocating screw rod 5 and the hopper 6 is bearing connection, and the screw threads at the front end and the rear end of the reciprocating screw rod 5 are opposite in rotating direction, so that the reciprocating screw rod 5 and the hopper 6 can be more firmly connected, the phenomenon of falling when the reciprocating screw rod is used is effectively prevented, and the stable use of the paver is ensured.

Mounting panel 8 and reciprocal lead screw 5's connected mode is threaded connection, and mounting panel 8 is provided with 2 to 2 mounting panels 8 are about the longitudinal center line symmetric distribution of hopper 6, like this when reciprocal lead screw 5 is rotatory, can drive mounting panel 8 and carry out the back-and-forth movement, make 2 mounting panels 8 simultaneously move in opposite directions or carry on the back mutually and move in addition, are convenient for to stirring of bituminous mixture, make the better unloading of bituminous mixture.

Limiting

plate

9 and 8 formula structures as an organic whole of mounting panel, and limiting plate 9 passes through recess 10 and hopper 6 constitutes sliding construction to the link of limiting plate 9 and recess 10 is "T" font, like this when mounting panel 8 removes, can make limiting plate 9 slide along recess 10, thereby make more steady that mounting panel 8 removed, the phenomenon of rocking appears in effective reduction, overall stability when guaranteeing this paver to use.

Connecting plate 11 is welded connection with bottom plate 12 and mounting panel 8 respectively, and bottom plate 12 is the slope form to there is the interval between bottom plate 12's the least significant end and reciprocal lead screw 5, can make connecting plate 11 and bottom plate 12 and mounting panel 8 between be connected more firm, like this in the use, can effectively avoid appearing the phenomenon that drops, and then when making mounting panel 8 remove, can drive connecting plate 11 and bottom plate 12 normal removal.

First scraper blade 13 and bottom plate 12's connected mode is for rotating the connection, and is "V" font all the time between first scraper blade 13 and the bottom plate 12, like this when bottom plate 12 removes, can drive first scraper blade 13 and remove, is convenient for adjust the contained angle between first scraper blade 13 and the bottom plate 12 moreover to can make the bituminous mixture who glues on first scraper blade 13 shake off, clear up by oneself first scraper blade 13, ensure first scraper blade 13's normal use.

One end and the fixed axle 17 welded connection of stay cord 14 are kept away from to reset coil spring 16, and the connected mode of fixed axle 17 and hopper 6 is the bearing connection, can be along with first scraper blade 13's pulling, receive and release the roll operation to stay cord 14 and reset coil spring 16, are convenient for fix first scraper blade 13, do not influence the removal of first scraper blade 13 simultaneously, guarantee the stability when first scraper blade 13 uses.

Second scraper blade 18 and mounting panel 8's connected mode is bolted connection, and second scraper blade 18's bottom is the slope form, can make second scraper blade 18 remove along with mounting panel 8 together, clears up the inside clearance efficiency of hopper 6, further improves the inside clearance efficiency of hopper 6.

Connect doctor-bar 19 and connect picture peg 20 formula structure as an organic whole, and connect picture peg 20 and spread groove 21 and be connected for the block, and connect picture peg 20 and be threaded connection between spacing groove 22 and the check lock lever 23 inside scraper blade 13, can scrape the clearance through connecting doctor-bar 19 to gluing's bituminous mixture on the 6 inner walls of hopper like this, and when damaging, be convenient for dismantle the change connecting doctor-bar 19, bring conveniently for staff's operation, the flexibility when the device uses has also been improved.

The working principle of the embodiment is as follows: when the scraper asphalt material removing device for the road bridge construction asphalt paver is used, as shown in figures 1 and 5, firstly, a worker puts asphalt mixture into a hopper 6 for storage, then a driver drives the paver body 1 to move and walk, because the caster wheel 3 is welded with the rotating shaft 2, the rotating shaft 2 can be driven to rotate together when the caster wheel 3 rotates, so that the rotating shaft 2 drives the reciprocating screw rod 5 to rotate through the transmission belt 4, as shown in figures 2 and 6, because the reciprocating screw rod 5 is in threaded connection with the mounting plate 8, and the threads at the front end and the rear end of the reciprocating screw rod 5 are opposite in rotation direction, when the reciprocating screw rod 5 rotates, the mounting plate 8 connected with the front end and the rear end can be driven to move back and forth, so that the limiting plate 9 on the mounting plate 8 slides along the groove 10, and the connection part between the limiting plate 9 and the groove 10 is in a T shape, therefore, the movement of the limiting plate 9 can be more stable, and the mounting plate 8 drives the connecting plate 11 and the bottom plate 12 to move more stably;

referring to fig. 3-4, since the bottom plate 12 and the first scraper 13 are connected by a shaft, the first scraper 13 is connected to one end of the pulling rope 14, and the other end of the pulling rope 14 passes through the fixed pulley 15 and is connected to the return coil spring 16, and one end of the return coil spring 16, which is far away from the pulling rope 14, is fixed to the fixed shaft 17, when the bottom plate 12 moves, the first scraper 13 can be driven to rotate, when the angle between the bottom plate 12 and the first scraper 13 is expanded to a certain degree, the first scraper 13 will move with the bottom plate 12, and at the same time, the pulling rope 14 is pulled to unwind, so that the return coil spring 16 is pulled by the pulling rope 14 to rotate, and further, the fixed shaft 17 is driven to rotate together, and with the movement of the first scraper 13, the mixture inside the hopper 6 will be turned over, and when the first scraper 13 moves to the moving position, the first scraper will move back with the, the included angle between the first scraper 13 and the bottom plate 12 is gradually reduced, the reset coil spring 16 drives the fixed shaft 17 to rotate and winds the pull rope 14, and 2 groups of the bottom plate 12 and the first scraper 13 are arranged, so that the mixture can be better stirred, the normal blanking operation of the asphalt material is ensured, and the asphalt material stuck on the first scraper 13 can be shaken off along with the change of the angle between the first scraper 13 and the bottom plate 12, so that the first scraper 13 can be automatically cleaned;

as shown in fig. 7, since the front and rear sides of the first scraper 13 are both provided with the connecting scrapers 19, and the connecting scrapers 19 are in fit connection with the inner wall of the hopper 6, the asphalt material adhered to the inner wall of the hopper 6 can be scraped, the cleaning of the inner wall of the hopper 6 can be realized, which is very convenient, not only effectively reduces the waste of the asphalt material, but also ensures the normal operation of the paver, when the connecting scrapers 19 need to be replaced, a worker can firstly rotate the locking rods 23 out of the connecting insertion plate 20 and the limiting grooves 22 in the first scraper 13, then move the connecting scrapers 19 and the connecting insertion plate 20 upwards together, so that the connecting insertion plate 20 gradually slides upwards along the connecting grooves 21 until the connecting insertion plate 20 and the connecting grooves 21 are completely separated, thus realizing the detachment between the connecting scrapers 19 and the first scraper 13, and then the worker can perform the replacement operation, it is convenient and improves the flexibility of the device when in use, which is the working process of the whole device, and the content which is not described in detail in the specification belongs to the prior art which is known by the professional in the field.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a road and bridge construction is scraper blade pitch material clearing device for asphalt paving machine, includes paver body (1), truckle (3), hopper (6), stay cord (14), fixed pulley (15) and reset coil spring (16), its characterized in that: the bottom of paver body (1) is installed pivot (2), and the equal welded connection in both sides outer end has truckle (3) around pivot (2), truckle (3) are connected with reciprocal lead screw (5) through driving belt (4), and reciprocal lead screw (5) set up in the inside of hopper (6), and hopper (6) install in the right side of paver body (1), the bottom of hopper (6) is provided with clamp plate (7), the outer wall and mounting panel (8) of reciprocal lead screw (5) are connected, and the left side of mounting panel (8) is connected with limiting plate (9), limiting plate (9) are connected through recess (10) and hopper (6), and recess (10) are seted up on the inner wall of hopper (6), the top of mounting panel (8) is provided with connecting plate (11), and connecting plate (11) keep away from the one end of mounting panel (8) and be connected with bottom plate (12), the one end that bottom plate (12) is close to hopper (6) lateral wall is connected with first scraper blade (13), the one end of first scraper blade (13) and stay cord (14) is connected, and the other end of stay cord (14) passes fixed pulley (15) and is connected with reset coil spring (16), fixed pulley (15) bolted connection is on the inner wall of hopper (6), reset coil spring (16) are installed on fixed axle (17), and fixed axle (17) keep away from the one end of first scraper blade (13) and hopper (6) and be connected, the bottom of mounting panel (8) is provided with second scraper blade (18), both sides all are provided with around first scraper blade (13) and connect scraper blade (19), and are connected with on connecting scraper blade (19) and connect picture peg (20), connect picture peg (20) and be connected through spread groove (21) and first scraper blade (13), and spread groove (21) are seted up in the inside of first scraper blade (13), limiting grooves (22) are formed in the connecting inserting plate (20) and the first scraper (13), and locking rods (23) are connected to the limiting grooves (22).

2. The scraper asphalt material clearing device for the road and bridge construction asphalt paver of claim 1, which is characterized in that: the reciprocating screw rod (5) is connected with the hopper (6) in a bearing mode, and the thread turning directions of the front end and the rear end of the reciprocating screw rod (5) are opposite.

3. The scraper asphalt material clearing device for the road and bridge construction asphalt paver of claim 1, which is characterized in that: the mounting plate (8) and the reciprocating screw rod (5) are connected in a threaded mode, 2 mounting plates (8) are arranged, and the 2 mounting plates (8) are symmetrically distributed about the longitudinal center line of the hopper (6).

4. The scraper asphalt material clearing device for the road and bridge construction asphalt paver of claim 1, which is characterized in that: limiting plate (9) and mounting panel (8) formula structure as an organic whole, and limiting plate (9) constitute sliding construction through recess (10) and hopper (6) to the link of limiting plate (9) and recess (10) is "T" font.

5. The scraper asphalt material clearing device for the road and bridge construction asphalt paver of claim 1, which is characterized in that: the connecting plate (11) is respectively connected with the bottom plate (12) and the mounting plate (8) in a welding mode, the bottom plate (12) is inclined, and a gap exists between the lowest end of the bottom plate (12) and the reciprocating screw rod (5).

6. The scraper asphalt material clearing device for the road and bridge construction asphalt paver of claim 1, which is characterized in that: the first scraper (13) is connected with the bottom plate (12) in a rotating mode, and the first scraper (13) and the bottom plate (12) are in a V shape all the time.

7. The scraper asphalt material clearing device for the road and bridge construction asphalt paver of claim 1, which is characterized in that: one end of the reset coil spring (16) far away from the pull rope (14) is welded with the fixed shaft (17), and the fixed shaft (17) is connected with the hopper (6) in a bearing mode.

8. The scraper asphalt material clearing device for the road and bridge construction asphalt paver of claim 1, which is characterized in that: the second scraper blade (18) and the mounting plate (8) are connected through bolts, and the bottom end of the second scraper blade (18) is inclined.

9. The scraper asphalt material clearing device for the road and bridge construction asphalt paver of claim 1, which is characterized in that: connect doctor-bar (19) and connection picture peg (20) formula structure as an organic whole, and connection picture peg (20) and spread groove (21) are connected for the block to be threaded connection between spacing groove (22) and check lock lever (23) inside connection picture peg (20) and first scraper blade (13).