CN213000223U - Multistage asphalt regeneration crushing device - Google Patents

Abstract

The utility model belongs to the field of solid waste treatment and discloses a multistage asphalt regeneration crushing device which comprises a shell and a power mechanism, wherein the power mechanism drives a crushing mechanism arranged in the shell to crush asphalt blocks entering the shell; the crushing mechanism comprises a plurality of crushing rollers arranged in a shell and a transmission assembly in transmission connection with the crushing rollers, and the transmission assembly is in transmission connection with a power mechanism; the crushing rollers are arranged side by side in pairs, a crushing gap is formed between every two adjacent crushing rollers, and the asphalt blocks entering the shell are crushed through the crushing gap at least twice; the transmission assembly comprises a fluted disc corresponding to each crushing roller, and the fluted disc of the crushing roller belonging to the same crushing gap is directly meshed for transmission. The utility model discloses a better crushing effect is realized in the design of two-stage crushing mechanism.

Description

Multistage asphalt regeneration crushing device

Technical Field

The utility model belongs to the technical field of solid useless processing, concretely relates to multistage pitch regeneration breaker.

Background

The asphalt pavement recycling technology is a whole set of process that old asphalt pavement needing to be renovated or abandoned is re-mixed with a regenerant, new asphalt, new aggregate and the like according to a certain proportion into a mixture after being dug, recovered, heated, crushed and screened by special pavement regeneration equipment, so as to meet certain pavement performance and be re-paved on the pavement. The pavement regeneration can not only satisfy the pavement performance requirement again, save a large amount of material resources and funds, reduce the construction cost, but also avoid the pollution of waste materials to the environment, realize industrial recycling economy and promote the ecological environment protection, is a specific practice for implementing strategic measures of 'conservation-minded society' and has very remarkable social and economic benefits.

Asphalt is considered to be a colloid dispersion system by the theory of asphalt colloid structure, and the dispersed phase of the asphalt is a micelle formed by adsorbing part of colloid by taking asphaltene as a core and is dispersed in a dispersion medium consisting of aromatic hydrocarbon and saturated hydrocarbon. Studies have shown that bitumen has better properties only if the relative proportions of the components in the bitumen satisfy a certain relationship. The essence of the deterioration of the quality of asphalt pavement is the aging of asphalt binder, i.e. the change of the components of asphalt cement, the reduction of aromatic components and the increase of colloid and asphaltene. The changes in the physical and mechanical properties of the asphalt caused by the "migration" of the chemical components of the asphalt can result in reduced penetration, reduced ductility, increased softening and brittle points, and increased hardening, embrittlement and reduced ductility of the asphalt. According to the theory of component regulation, the lost components are added into the aged asphalt, so that the proportion of the components is reconciled, and the performance of the asphalt can be recovered. Because the fresh soft asphalt contains more soft asphalt components, the performance of the old asphalt reaches a certain level through blending, thereby achieving the aim of asphalt regeneration.

The pretreatment stage of the regeneration process needs to crush the recycled asphalt blocks, the existing crushing equipment is a double-roller crusher which has the advantages of simple structure and less excessive crushing phenomenon, and the tooth form, the size and the arrangement on the roller surface can be changed along with the material property and can crush medium-hard and soft solids. However, the structure of the crushing roller used in the existing crusher cannot be directly applied to the asphalt treatment with certain viscosity, and the existing crushing roller is of a fixed structure and cannot be adjusted according to the feeding characteristic.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a multistage asphalt regeneration crushing device.

The utility model discloses the technical scheme who adopts does:

a multistage asphalt regeneration crushing device comprises a shell and a power mechanism, wherein the power mechanism drives a crushing mechanism arranged in the shell to crush asphalt blocks entering the shell;

the crushing mechanism comprises a plurality of crushing rollers arranged in a shell and a transmission assembly in transmission connection with the crushing rollers, and the transmission assembly is in transmission connection with a power mechanism;

the crushing rollers are arranged side by side in pairs, a crushing gap is formed between every two adjacent crushing rollers, and the asphalt blocks entering the shell are crushed through the crushing gap at least twice;

the transmission assembly comprises a fluted disc corresponding to each crushing roller, and the fluted disc of the crushing roller belonging to the same crushing gap is directly meshed for transmission.

The multistage treatment is that at least two layers of units for treatment are arranged on the movement track of the material in the same closed or semi-closed space, and the material is subjected to more than two complete treatment processes, so that the multistage treatment is obtained.

Among the existing crushing equipment, the material with certain hardness is mostly crushed, and the material is crushed into a small-volume solid under the action of certain extrusion force in the fixed gap formed by the double-roller structure. But to the solid material that has certain toughness, originally lay through the hot melt and form the structure of homogeneity density, destroy after retrieving directly through the extrusion difficult to realize better crushing effect again, then need optimize on current breaker to improve crushing efficiency.

The utility model discloses an on current individual layer breaker basis, integrated at least two-stage crushing roller structure that has in same casing, the accessible adopts different tool bit structures can adapt to different broken tasks. Because the shell is of a horizontal structure, each stage of crushing roller is horizontally arranged. In the utility model discloses in, every level contains two crushing roller structures, and vertical direction is the material direction of motion promptly. Through multistage structural design, can carry out different broken tasks in the crushing roller department on different layers, through having the regulation crushing roller interval, rotational speed and the broken head size to reach higher crushing efficiency, avoid the broken incomplete problem of single.

Further, the crushing roller comprises a first crushing roller and a second crushing roller which are sequentially arranged along the motion track of the asphalt block;

a first guide plate is arranged between the first crushing roller and the second crushing roller, is fixed on the inner wall of the shell and is used for guiding the material falling from the first crushing roller to enter the gap of the second crushing roller.

Further, the fluted disc comprises a first gear corresponding to the first crushing roller and a second gear corresponding to the second crushing roller;

the first gears are in direct meshing transmission, and the second gears are in direct meshing transmission;

a belt pulley A is arranged on any first gear and is in transmission connection with a belt pulley B arranged on any second gear;

the diameter of the belt pulley A is larger than that of the second gear.

The utility model discloses in, because the pitch piece that gets into originally has great or longer structural feature, need realize preliminary breakage earlier through the lower rotational speed of great interval, handle the intermediate material that forms uniform particle size earlier with the solid construction of bulky, then cut through the second crushing roller that the lower part accelerates the rotational speed to obtain final broken result. In order to realize speed regulation, a multi-gear structure is adopted, gears belonging to the same layer are directly meshed for transmission, and the crushing rollers on the same layer rotate oppositely, so that the requirements are met; the upper and lower layers of crushing rollers are driven by a belt, and the belt can rotate in the same direction.

Meanwhile, through the structural design of the large and small wheels, the rotating speed of the second crushing roller on the lower layer is higher than that of the first crushing roller, and the smaller crushed product can be obtained.

Further, the second crushing roller comprises a second roller body and a plurality of cutter heads arranged on the second roller body along the axial direction of the second roller body, and at least two circles of cutter heads are arranged on each cutter head; and a reserved area is arranged between every two adjacent rings of cutter heads and is used for inserting and rotating the corresponding cutter head on the adjacent second crushing roller during the matching to form a cutting effect.

It is worth to say that the second roller structure that sets up is the columnar body that has certain length, and the blade disc is the disk structure that the cover is established on second roller and is fixed through the bolt, and its axis length can be designed according to the user demand. For example, three cutter heads with the same size and mutually attached can be arranged on the second roller body, and then the cutter heads are sequentially arranged in the second roller body and then fixed by bolts. The hollow area is convenient for forming a staggered structure with the cutter discs of the adjacent second crushing rollers, so that the shearing effect on the materials is formed.

Furthermore, the surface of the second roller body is inwards sunken to form a plurality of clamping grooves extending along the axis direction, and the cutter head is provided with a convex block correspondingly matched and clamped with the clamping grooves.

Furthermore, a second guide plate for guiding the material to be discharged is arranged at the lower part of the second crushing roller, and a rectangular groove which is wider than the cutter head and facilitates the penetration of the rotary cutter head is formed in the inner concave surface of the second guide plate, which faces one side of the second crushing roller.

Further, the first crushing roller comprises a first roller body and a strip plate which is arranged around the axis of the first roller body at equal intervals, and a plurality of crushing heads are arranged on the strip plate.

Furthermore, first guide board is the arc structure to be equipped with a plurality of widths on its concave surface towards first crushing roller one side and be greater than the wedge groove of crushing head, the wedge groove is convenient for the deep rectangular channel of pivoted crushing head.

Furthermore, the power mechanism comprises a motor and a speed reducer which are arranged on the same base and are in transmission connection, and one end of the speed reducer is in transmission connection with any one of the first crushing rollers.

The utility model has the advantages that:

(1) the utility model realizes better crushing effect through the design of a two-stage crushing mechanism, and because the initially entering asphalt block has larger or longer structural characteristics, the initial crushing is realized through the larger interval and the lower rotating speed, the solid structure with large volume is firstly processed to form the intermediate material with uniform particle size, and then the intermediate material is cut through the second crushing roller with the lower part accelerating the rotating speed so as to obtain the final crushed product;

(2) the utility model can replace different cutter head structures according to the characteristics of feeding through the second crushing roller structure, so as to achieve better crushing effect and higher flexibility;

(3) the utility model realizes the speed regulation effect through the transmission structure of the big wheel and the small wheel by the transmission mechanism design matched with the two-stage crushing structure for transmission, and increases the rotating speed of the second crushing roller at the lower part to obtain smaller crushing grain diameter;

(4) the utility model discloses a be provided with the first roll body structure of detachable and slat structure, can reach the regulation effect through the mode of changing the slat to the size and the interval of broken head according to the characteristics of pan feeding, compare with prior art, then stand out its nimble changeable assembly characteristic.

Drawings

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

fig. 2 is a side view of the overall structure of the present invention;

FIG. 3 is a schematic axial view of another angle of the overall structure of the present invention;

FIG. 4 is an isometric view of the bottom opening viewing angle of the overall structure of the present invention;

fig. 5 is a top view of the overall structure of the present invention;

FIG. 6 is a schematic view of the assembly structure of the two-sided crushing roller of the present invention;

figure 7 is a side view of the invention in the state of figure 6;

FIG. 8 is a schematic view of a second crushing roller according to the present invention;

fig. 9 is an enlarged partial schematic view of a in fig. 8 according to the present invention;

FIG. 10 is a schematic view showing a disassembled structure of the first crushing roller according to the present invention.

In the figure: 1-housing, 2-motor, 3-reducer, 4-base, 5-belt cover, 6-top plate, 7-shaft seat, 8-window, 9-first gear, 10-second gear, 11-B belt pulley, 12-A belt pulley, 13-first crushing roller, 14-first guide plate, 15-second crushing roller, 15.1-second roller body, 15.2-cutter head, 15.3-cutter head, 15.4-clamping groove, 16-second guide plate, 17-discharge plate, 18-support.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

a multistage asphalt regeneration crushing device is used as pretreatment equipment in an asphalt recovery and regeneration process. The multistage treatment is that at least two layers of units for treatment are arranged on the movement track of the material in the same closed or semi-closed space, and the material is subjected to more than two complete treatment processes, so that the multistage treatment is obtained. Among the existing crushing equipment, the material with certain hardness is mostly crushed, and the material is crushed into a small-volume solid under the action of certain extrusion force in the fixed gap formed by the double-roller structure. But to the solid material that has certain toughness, originally lay through the hot melt and form the structure of homogeneity density, destroy after retrieving directly through the extrusion difficult to realize better crushing effect again, then need optimize on current breaker to improve crushing efficiency.

The embodiment specifically discloses a crushing device, which comprises a shell 1 and a power mechanism, wherein the power mechanism drives a crushing mechanism arranged in the shell 1 to crush asphalt blocks entering the shell 1; the crushing mechanism comprises a plurality of crushing rollers arranged in the shell 1 and a transmission assembly in transmission connection with the crushing rollers, and the transmission assembly is in transmission connection with a power mechanism; the crushing rollers are arranged side by side in pairs, a crushing gap is formed between the adjacent crushing rollers, and the asphalt blocks entering the shell 1 are crushed through the crushing gap at least twice; the transmission assembly comprises a fluted disc corresponding to each crushing roller and belongs to the fluted disc direct meshing transmission of the crushing rollers in the same crushing gap.

In the embodiment, on the basis of the existing single-layer crusher, at least two stages of crushing roller structures are integrated in the same shell 1, and different crushing tasks can be adapted by adopting different structures of the cutter head 15.3. Since the housing 1 is of a horizontal structure, each stage of crushing rolls is placed in a horizontal manner. In the utility model discloses in, every level contains two crushing roller structures, and vertical direction is the material direction of motion promptly. Through multistage structural design, can carry out different broken tasks in the crushing roller department on different layers, through having the regulation crushing roller interval, rotational speed and the broken head size to reach higher crushing efficiency, avoid the broken incomplete problem of single.

In which fig. 1 can be seen that the housing 1 is provided with a number of viewing windows 8 for checking the operating state of the internal crushing roller. Still be equipped with the axle bed 7 that is used for fixed crushing roller on casing 1 keeps away from motor one side, and the pivot of crushing roller is all worn out casing 1 and is spacing through axle bed 7. And axle bed 7 passes through the bolt fastening on casing 1 surface, dismantles axle bed 7 earlier and makes the pivot lose the restriction when needing to overhaul or change, and the crushing roller is taken off to the mode of rethread taking off the pivot.

Example 2:

the present embodiment discloses a crushing device, as shown in fig. 1-10, which includes a housing 1 and a power mechanism, wherein the power mechanism drives a crushing mechanism disposed in the housing 1 to crush asphalt blocks entering the housing 1. The shell 1 is of a cuboid structure, an opening is formed in the upper portion of the shell, and a top plate 6 is arranged at the opening and used for guiding materials to enter the shell 1.

The crushing mechanism comprises a plurality of crushing rollers arranged in the shell 1 and a transmission assembly in transmission connection with the crushing rollers, and the transmission assembly is in transmission connection with a power mechanism; the crushing rollers are arranged side by side in pairs, a crushing gap is formed between the adjacent crushing rollers, and the asphalt blocks entering the shell 1 are crushed through the crushing gap at least twice; the transmission assembly comprises a fluted disc corresponding to each crushing roller and belongs to the fluted disc direct meshing transmission of the crushing rollers in the same crushing gap. As can be seen in fig. 1, the power mechanism is the motor 2 and the speed reducer 3, and the speed reducer 3 is connected with the motor 2 through a belt, and a belt cover 5 is arranged outside the belt.

Wherein, the crushing roller comprises a first crushing roller 13 and a second crushing roller 15 which are arranged in sequence along the motion track of the asphalt block; between the first crushing roller 13 and the second crushing roller 15, there is a first guide plate 14 fixed to the inner wall of the housing 1 for guiding the material falling from the first crushing roller 13 into the gap between the second crushing roller 15. And the toothed disc comprises a first gear 9 corresponding to the first crushing roller 13 and a second gear 10 corresponding to the second crushing roller 15; the first gear 9 is in direct meshing transmission, and the second gear 10 is also in direct meshing transmission; a belt pulley A12 is arranged on the first gear 9 on the left side and is in transmission connection with a belt pulley B11 arranged on the second gear 10 on the lower part; the diameter of the a pulley 12 is larger than the second gear 10.

In this embodiment, since the initially entering asphalt block has a larger or longer structural feature, it is necessary to first perform primary crushing by a larger pitch and a lower rotation speed, and then process the solid structure with a large volume to form an intermediate material with a uniform particle size, and then perform cutting by the second crushing roller 15 with a lower rotation speed increased to obtain a final crushed product. In order to realize speed regulation, a multi-gear structure is adopted, gears belonging to the same layer are directly meshed for transmission, and the crushing rollers on the same layer rotate oppositely, so that the requirements are met; the upper and lower layers of crushing rollers are driven by a belt, and the belt can rotate in the same direction. Meanwhile, through the structural design of the large and small wheels, the rotating speed of the lower second crushing roller 15 is higher than that of the first crushing roller 13, and the small crushed products can be obtained.

The second crushing roller 15 comprises a second roller body 15.1 and a plurality of cutter heads 15.2 arranged on the second roller body 15.1 along the axial direction of the second roller body 15.1, and at least two circles of cutter heads 15.3 are arranged on the cutter heads 15.2; and a clearance area is arranged between the cutter heads 15.3 of the two adjacent circles, and the clearance area is used for the corresponding cutter head 15.3 on the adjacent second crushing roller 15 to insert and rotate during the rotation to form a cutting effect. The structure of the second roller body 15.1 is a cylindrical body with a certain length, and the cutter head 15.2 is a disc-shaped structure which is sleeved on the second roller body 15.1 and fixed through bolts, and the axial length of the cutter head can be designed according to the use requirement. For example, three cutter heads 15.2 having the same size and being attached to each other may be provided on the second roller body 15.1, and the cutter heads 15.2 are sequentially mounted and fixed by bolts. The empty area is convenient for forming a staggered structure with the cutter discs 15.2 of the adjacent second crushing rollers 15, so that the shearing effect on the materials is formed.

The surface of the second roller body 15.1 is inwards recessed to form a plurality of clamping grooves 15.4 extending along the axial direction, and the cutter head 15.2 is provided with a convex block correspondingly matched and clamped with the clamping grooves 15.4. And the lower part of the second crushing roller 15 is provided with a second guide plate 16 for guiding the material to be discharged, and the inner concave surface of the second guide plate 16 facing the side of the second crushing roller 15 is provided with a rectangular groove which is wider than the cutter head 15.3 and is convenient for the rotating cutter head 15.3 to go deep.

As can be seen in fig. 7, for holding the first guide plate 14 and the second guide plate 16 are a plurality of brackets 18 provided on the inner wall of the housing 1. And a discharging plate 17 is further provided at the lower part of the second guide plate 16, the discharging plate 17 is provided on the inner wall of the housing 1 and guides the material falling from the second guide plate 16 to fall out of the housing 1.

It is also worth mentioning that the first crushing roller comprises a first roller body and slats arranged at equal intervals around the axis of the first roller body, the slats being provided with a plurality of crushing heads. The first guide plate 14 is of an arc-shaped configuration and is provided on its inner concave surface on the side facing the first crushing roller 13 with a plurality of wedge-shaped grooves of a width greater than that of the crushing head, which are rectangular grooves facilitating penetration of the rotating crushing head. The power mechanism which is arranged in the shell 1 and used for providing a supporting effect for the first crushing roller 13 comprises a motor 2 and a speed reducer 3 which are arranged on the same machine base 4 and are in transmission connection, and one end of the speed reducer 3 is in transmission connection with any one first crushing roller 13.

Wherein preferably the first crushing roller 13 comprises a first roller body and a plurality of slats arranged about the first roller body axis; the slat is movably fixed on the first roller body, and the materials are extruded and crushed through a plurality of crushing heads arranged on the slat. The lath is fixed on the first roller body through the connecting piece, the connecting piece is provided with external threads, a plurality of groups of positioning grooves are arranged on the first roller body, and internal screw holes for screwing the connecting piece in are arranged in the positioning grooves.

The slat is the columnar structure, is equipped with a plurality of spacing grooves on its surface along the axis direction, and the slat setting is in the spacing inslot and carries out prepositioning through the inner wall of spacing groove. The positioning groove is of an inner triangular sinking groove structure formed by inwards sinking the outer wall of the first roller body, and a plurality of positioning blocks corresponding to the positioning groove are arranged on the side, opposite to the side where the ribbon board is provided with the crushing head, of the positioning groove and pass through the positioning blocks and the positioning groove; still be equipped with the fixed orifices that runs through slat and locating piece on the slat, the connecting piece is fixed from the fixed orifices that penetrates that is equipped with crushing head one side.

The slat is also provided with a fixed head which is provided with an end head with the same structure as the crushing head; the connecting piece is a fixed part which is a rod piece with external threads at the end part and is fixedly connected with the end head; the fixing head is also provided with an operating part, and the fixing head is caused to screw the fixing structure formed on the surface of the batten through matching transmission of the mounting tool and the operating part.

The utility model discloses in, the structure of integrated into one piece when broken head is made by the slat can adopt the metal material, and the slat is the concrete material, and the slat passes through the mould and once only pours the formation, and broken head then fixes in the mould when pouring, then forms the integral type structure after pouring. And a plurality of fixing hole structures are equidistantly arranged on the lath and penetrate through the whole lath in the direction vertical to the length direction of the lath. The connecting piece is inserted into the corresponding fixing hole, and is inserted into the corresponding inner screw hole after penetrating through the connecting piece to realize tensioning and fixing.

When the batten is installed, the batten needs to be aligned with the limiting groove, the positioning block is inserted into the corresponding positioning groove, and when the batten is attached to the batten in a natural state, the batten is fixed through screwing the connecting piece. The mode is a simple bolt fixing mode, but because whole structure is used in the breaker, and the pitch granule after the breakage has certain viscosity, in case block up in the hole, then be difficult to clear up, influence the equipment dismouting. In order to avoid the exposed holes, the expansion end arranged at the end part of the connecting piece is arranged to be an end head structure with a crushing and cutting function, so that the expansion end is blocked outside the fixing hole during fixing and has a crushing effect.

The operating part is a part for providing a force application point for the assembling tool for convenient transmission and matching, and the assembling tool mainly comprises a mounting tool commonly used by a person skilled in the art. The action part of the tool is connected with the operation part to realize matching, the tool applies power to cause the whole fixed head to rotate, and the fixed part at the other side of the fixed head is screwed into the corresponding inner screw hole to realize fixing.

The end and the crushing head are both provided with a plurality of convex rings, and the cutting effect on the asphalt is formed through the convex rings. The configuration of the collars on the ends of the crushing head and the fixed head, in this embodiment three layers, provides a transverse cutting effect on the asphalt mass as the entire first crushing roller 13 rotates, and also pushes the asphalt mass into the gap between the two first crushing rollers 13 for extrusion.

The fixed head is in a columnar structure, and the operating part is an inner hexagonal groove arranged on the end head. The structure of part of the fixed head is displayed, and the end part of the fixed head is provided with an inner hexagonal sinking groove which is assembled and disassembled by rotating an inner hexagonal tool.

In another scheme, the fixing head is of a cylindrical structure, the operating part is of a hexagonal prism structure arranged between the end head and the fixing part, and operation is carried out through tool clamping. The scheme disclosed in this embodiment can avoid the small-particle size material that the pitch crushing in-process produced to get into the jam condition that the hole caused difficult clearance completely, nevertheless owing to be setting up between end and fixed part, and adjacent broken head interval is nearer, then can influence dismouting efficiency, can adopt the spanner of special system to improve dismouting speed. It should be noted that, only after comparing the two embodiments, the mutual advantages and disadvantages of the three solutions are determined, which are comparative values, not general characteristics, and not representative of the fact that they cannot be realized. At least three rows of staggered crushing heads are arranged on the slats along the length direction, and at least three fixed heads are contained in the middle row of crushing heads.

The present invention is not limited to the above-mentioned alternative embodiments, and various other products can be obtained by anyone under the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims (8)

1. A multistage asphalt regeneration crushing device comprises a shell (1) and a power mechanism, wherein the power mechanism drives a crushing mechanism arranged in the shell (1) to crush asphalt blocks entering the shell (1); the method is characterized in that:

the crushing mechanism comprises a plurality of crushing rollers arranged in the shell (1) and a transmission assembly in transmission connection with the crushing rollers, and the transmission assembly is in transmission connection with a power mechanism;

the two crushing rollers are arranged side by side and form a crushing gap between the adjacent crushing rollers, and the asphalt block entering the shell (1) is crushed through the crushing gap at least twice;

the transmission assembly comprises a fluted disc which is arranged corresponding to each crushing roller, and the fluted discs of the crushing rollers belonging to the same crushing gap are directly meshed for transmission;

the crushing roller comprises a first crushing roller (13) and a second crushing roller (15) which are sequentially arranged along the motion track of the asphalt block;

a first guide plate (14) which is fixed on the inner wall of the shell (1) and is used for guiding the materials falling out of the first crushing roller (13) to enter the gap of the second crushing roller (15) is arranged between the first crushing roller (13) and the second crushing roller (15).

2. The multistage asphalt recycling crushing device according to claim 1, wherein: the fluted disc comprises a first gear (9) corresponding to the first crushing roller (13) and a second gear (10) corresponding to the second crushing roller (15);

the first gears (9) are in direct meshing transmission, and the second gears (10) are also in direct meshing transmission;

a belt pulley A (12) is arranged on any one of the first gears (9) and is in transmission connection with a belt pulley B (11) arranged on any one of the second gears (10);

the diameter of the A belt pulley (12) is larger than that of the second gear (10).

3. The multistage asphalt recycling crushing device according to claim 1 or 2, wherein: the second crushing roller (15) comprises a second roller body (15.1) and a plurality of cutter heads (15.2) arranged on the second roller body (15.1) along the axial direction of the second roller body (15.1), and at least two rings of cutter heads (15.3) are arranged on the cutter heads (15.2); and a clearance area is arranged between the cutter heads (15.3) of two adjacent circles, and the clearance area is used for the corresponding cutter head (15.3) on the adjacent second crushing roller (15) to insert and rotate during the matching process to form a cutting effect.

4. The multistage asphalt recycling crushing device according to claim 3, wherein: the second roll body (15.1) surface is inwards sunken to form many draw-in grooves (15.4) that extend along the axis direction, be equipped with on blade disc (15.2) and correspond the lug of cooperation joint with draw-in groove (15.4).

5. The multistage asphalt recycling crushing device according to claim 3, wherein: and a second guide plate (16) for guiding the material to be discharged is arranged at the lower part of the second crushing roller (15), and a rectangular groove with a width larger than that of the cutter head (15.3) and convenient for the penetration of the cutter head (15.3) in rotation is arranged on the inner concave surface of one side, facing the second crushing roller (15), of the second guide plate (16).

6. The multistage asphalt recycling crushing device according to claim 3, wherein: the first crushing roller (13) comprises a first roller body and battens which are arranged at equal intervals around the axis of the first roller body, and a plurality of crushing heads are arranged on the battens.

7. The multistage asphalt recycling crushing device according to claim 6, wherein: first guide board (14) are the arc structure to be equipped with a plurality of widths on its concave surface towards first crushing roller (13) one side and be greater than the wedge groove of broken head, the wedge groove is convenient for the deep rectangular channel of pivoted broken head.

8. The multistage asphalt recycling crushing device according to claim 1 or 2, wherein: the power mechanism comprises a motor (2) and a speed reducer (3) which are arranged on the same machine base (4) and are in transmission connection, and one end of the speed reducer (3) is in transmission connection with any one of the first crushing rollers (13).

Images