Asphalt milling material stripping device

Abstract

The invention discloses an asphalt milling material stripping device, and belongs to the field of asphalt recovery treatment. The stripping device comprises a stripping mechanism, wherein the stripping mechanism comprises a first shell with an opening in the top; a stripping cavity assembly and a material throwing structure are installed in the first shell, the material throwing structure comprises a lower runner plate, the lower runner plate is connected with an upper runner plate through a pipe body, a feeding port is formed in the middle of the upper runner plate, a material distributing cone is arranged on the upper surface of the lower runner plate located under the feeding port, and a plurality of material throwing channels are arranged on the peripheral side of the pipe body; and the rotating directions of the material throwing structure and the stripping cavity assembly are opposite. By arranging the material throwing structure and the stripping cavity assembly which are opposite in rotation direction, when the asphalt milling material is thrown out by the material throwing structure, the asphalt milling material and an impact plate on the stripping cavity wall plate assembly which moves in the opposite direction generate proper impact force which ensures that aggregate is not broken; and high-quality stripping of the asphalt milling materials is completed under the common action of the friction force between the stones and the stripping cavity and the extrusion and rubbing force between the stones.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of asphalt recycling, in particular to an asphalt milling material stripping device. BACKGROUND

[0002] With the development of highway construction and maintenance industry, a large amount of waste asphalt mixture is generated. If these materials are simply discarded, not only a large amount of land resources is occupied, but also environmental pollution is caused, and the two valuable resources of asphalt and stone (aggregate) contained therein are greatly wasted. Therefore, efficient recycling and recycling of asphalt milling material has become the core problem of current highway construction and maintenance industry.

[0003] In the pretreatment link of efficient and high-quality separation of aggregate and asphalt, the existing milling material stripping device is mainly designed with a shot blasting material and a spiral blade stirring structure. The shot blasting mechanism can throw out the milling material, and the rotation of the spiral blade drives the milling material to be stirred in the box. The friction and rubbing effect of this stirring is poor, and in actual operation, only the loose part on the surface can be removed. Another design uses the principle of vertical shaft crusher, uses one-way rotation to throw material, and realizes stripping through collision, friction and extrusion in the crushing cavity. The stripping effect is improved, but it is difficult to achieve deep and thorough high-quality stripping.

[0004] Incomplete stripping means that there is still a lot of old asphalt on the surface of the aggregate, which not only reduces the effect of the recycled material, but also damages the adhesion of the new asphalt and the aggregate in the subsequent mixing process, ultimately resulting in the overall quality of the recycled mixture being difficult to meet the requirements of paving high-grade roads, limiting the range of application of asphalt milling material recycling, and increasing the difficulty of its popularization and application. SUMMARY

[0005] The present application provides an asphalt milling material stripping device, which can solve the problem of deep stripping of the existing stirring stripping equipment.

[0006] An asphalt milling material stripping device, comprising a stripping mechanism, the stripping mechanism comprising a first housing with an open top; a stripping cavity assembly and a material throwing structure are installed inside the first housing, the material throwing structure comprising a lower runner plate, the lower runner plate being connected with an upper runner plate through a pipe body, the middle part of the upper runner plate being provided with a feed port, a material distribution cone being arranged on the upper surface of the lower runner plate directly below the feed port, and a plurality of material throwing channels being arranged on the side of the pipe body; the rotation directions of the material throwing structure and the stripping cavity assembly are opposite; the stripping mechanism is installed on a ring-shaped support, the ring-shaped support being fixed to the top side of a device main body, an installation cavity being formed in the device main body, the bottom of the first housing being communicated with a discharge pipe, the discharge pipe being located in the installation cavity and penetrating the bottom of the device main body at the end.

[0007] Further, the stripping cavity assembly comprises an annular lining plate arranged at a position of the inner wall of the first shell, a first outer ring body is connected to the bottom end of the annular lining plate, a first inner ring body is connected to the inner wall of the first outer ring body through a connecting rod, and a plurality of first impact plates are arranged in a ring shape on the inner wall of the annular lining plate; a through hole is formed at the center of the bottom of the first shell, a first bearing is mounted at the through hole, an inner ring of the first bearing is assembled with a shaft tube, and the end of the shaft tube is fixed to the bottom side of the first inner ring body; an annular sealing ring is arranged on the inner wall of the through hole, and the annular sealing ring and the outer wall surface of the shaft tube are in sealing fit; impact blocks are detachably mounted on both sides of the throwing channel.

[0008] Further, motor supports are fixed to the outer top side of the device body on both sides of the stripping mechanism, a first motor and a second motor are respectively mounted on the two motor supports; the output ends of the first motor and the second motor are respectively extended to the inside of the mounting cavity, and first driving pulleys and second driving pulleys are respectively mounted at the ends of the two; a horizontal support plate is arranged in the mounting cavity, a first rotating shaft and a second rotating shaft are respectively mounted on the support plate through two bearing seats, second driven pulleys and first driven pulleys are mounted at the bottom ends of the first rotating shaft and the second rotating shaft, and the second driven pulleys and the second driving pulleys and the first driven pulleys and the first driving pulleys are all transmissionally connected through transmission belts; a gear ring is arranged on the outer wall surface of the shaft tube, and a gear meshing with the gear ring is mounted on the top of the second rotating shaft; the top of the first rotating shaft is connected to the bottom of the distributing cone.

[0009] Further, the first rotating shaft penetrates through the first inner ring body, and a second bearing is connected between the first inner ring body and the first rotating shaft.

[0010] Further, an opening for mounting a discharging pipe is formed at the bottom of the first shell between the first outer ring body and the first inner ring body.

[0011] Further, a hopper assembly is detachably mounted on the top of the stripping mechanism; the hopper assembly comprises an annular support plate mounted on the top end face of the first shell, a hopper body is mounted on the middle part of the annular support plate, and a protruding discharging port is communicated with the bottom side of the hopper body; the discharging port is located directly above the throwing structure.

[0012] Further, a first top plate is fixed to the top end face of the annular lining plate, a first mounting hole is formed in the middle part of the first top plate, a pipe body is fixed in the first mounting hole, a second top plate is arranged on the top of the pipe body, a second mounting hole is formed in the middle part of the second top plate, a groove body with an open top is mounted in the second mounting hole, a discharging pipe is connected to the bottom of the groove body, and the bottom end of the discharging pipe penetrates through the feeding port and extends into the throwing structure; The bottom end surface of the pipe body is slightly higher than the upper surface of the upper flow channel plate, and the first side reinforcing plate is connected between the second top plate and the groove body.

[0013] Further, the top end surface of the first shell is provided with a rubber sealing washer, the bottom side surface of the annular support plate abuts against the rubber sealing washer, the outer circumferential side of the annular support plate is provided with a notch, the outer wall surface of the first shell is provided with a protrusion, a hinge seat is arranged on the protrusion, a tension bolt is hingedly connected to the hinge seat through a hinge shaft, the tension bolt passes through the notch, and a stud segment of the tension bolt is threadedly connected with a wing nut abutting against the upper surface of the annular support plate.

[0014] Further, at least two second side reinforcing plates are connected between the bottom side surface and the inner wall surface of the hopper body, the top end surface of the second side reinforcing plate is provided with an arc-shaped support block, the inner side wall of the arc-shaped support block is provided with an arc-shaped protrusion, a rectangular hole is formed in the side wall of the hopper body located between the two second side reinforcing plate supports, a side plate is mounted at the rectangular hole, the side plate is provided with a plurality of vertical rectangular ventilation holes, and an arc-shaped baffle is further arranged, and a plurality of open grooves supported on the arc-shaped support blocks are formed in the two end surfaces of the baffle. During installation, the two ends of the arc-shaped support block are respectively inserted into the open grooves at the two ends of the arc-shaped support block, the outer wall surface of the baffle is attached to the inner wall surface of the hopper body, and the arc-shaped protrusion abuts against the inner wall surface of the baffle; a ventilation hole is formed in the inner wall of the hopper body located at the top of the rectangular hole, a second shell is arranged through the upper surface of the annular support plate, and a connecting ring is connected between the second shell and the top of the hopper body.

[0015] Further, a third side reinforcing plate is connected between the connecting ring and the hopper body, a hoisting block is mounted on the top surface of the connecting ring, a negative pressure hole is formed in the connecting ring or the second shell, and the negative pressure hole is connected to a negative pressure device through a negative pressure pipe.

[0016] 1、The present application sets the throwing structure and the stripping cavity assembly with opposite rotating directions, when the asphalt milling material is thrown out by the throwing structure, the impact plate on the reverse moving stripping cavity wall plate assembly is impacted with proper impact force to ensure that the aggregate is not broken, and the stripping of the asphalt milling material is completed under the combined action of the friction force between the stone and the stripping cavity and the extrusion and rubbing force between the stones; under the combined action of the proper impact force, the friction force and the extrusion and rubbing force, the aged asphalt film can be more completely and quickly stripped from the aggregate surface, so that the reclaimed aggregate with higher cleanliness and the fine aggregate with higher asphalt content and less broken aggregate are obtained.

[0017] 2、The impact blocks are detachably mounted on both sides of the throwing channel, and these impact blocks as wearing parts can be conveniently replaced, thereby reducing the maintenance cost and downtime, and meanwhile, the hopper assembly and the stripping mechanism are detachably connected through the wing nut and the tension bolt, so that the cleaning and maintenance are facilitated.

[0018] 3、The hopper assembly side wall is provided with rectangular ventilation holes and ventilation openings, and can be connected with negative pressure equipment, which can effectively extract the dust generated during work, significantly improve the working environment, and meet the environmental protection requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A schematic diagram of the peeling device structure is provided for the present application; Figure 2 A schematic diagram of the peeling device structure is provided for the present application; Figure 1 A schematic diagram of the peeling device structure is provided for the present application; Figure 3 Figure 2 A schematic diagram of the peeling device structure is provided for the present application; Figure 4 A schematic diagram of the peeling device structure is provided for the present application; Figure 2 A schematic diagram of the peeling device structure is provided for the present application; Figure 5 A schematic diagram of the peeling device structure is provided for the present application; Figure 6 A schematic diagram of the peeling device structure is provided for the present application; Figure 5 A schematic diagram of the peeling device structure is provided for the present application;

[0020] BRIEF DESCRIPTION OF DRAWINGS 1-hopper assembly, 10-annular support plate, 12-hopper body, 13-second side reinforcing plate, 14-rectangular hole, 15-arc-shaped support block, 16-baffle, 17-lifting block, 18-second housing, 21-first housing, 22-first inner ring body, 30-motor support, 31-first motor, 32-second motor, 33-support plate, 34-first rotating shaft, 35-second rotating shaft, 36-lower flow channel plate, 37-upper flow channel plate, 38-distributing cone, 101-slot, 121-discharge opening, 122-third side reinforcing plate, 123-connection ring, 141-side plate, 142-rectangular ventilation hole, 143-ventilation opening, 161-opening slot, 210-rubber sealing ring, 211-through hole, 212-first bearing, 213-shaft tube, 214-gear ring, 215-tensioning bolt, 216-protruding block, 220-first impact plate, 221-connection rod, 222-first outer ring body, 223-annular lining plate, 224-first top plate, 225-tube body, 226-second top plate, 227-groove body, 228-discharge pipe, 229-first side reinforcing plate, 301-annular support, 311-first driving pulley, 321-second driving pulley, 331-bearing seat, 341-second driven pulley, 351-first driven pulley, 352-gear, 371-tube body, 372-impact block. DETAILED DESCRIPTION

[0021] The specific embodiments of the present application are described in detail below, but it should be understood that the protection scope of the present application is not limited by the specific embodiments.​

[0022] As Figures 1-2 shown, the asphalt milling material stripping device provided by the embodiment of the application comprises a stripping mechanism 2, a hopper assembly 1 detachably mounted on the top of the stripping mechanism 2, and a device body 3 for supporting and mounting the stripping mechanism 2, the stripping mechanism 2 is mounted on an annular support 301 fixed on the top side of the device body 3, an installation cavity is formed in the device body 3, a discharge hole is formed in the bottom of a first shell 21, a discharge gate valve is mounted at the discharge hole, and the discharge hole is communicated with a discharge pipe located in the installation cavity and penetrating through the bottom of the device body 3.

[0023] The stripping mechanism 2 comprises a material throwing structure and a stripping cavity assembly rotating in opposite directions, the material throwing structure is located inside the stripping cavity assembly, and both the material throwing structure and the stripping cavity assembly are mounted in a first shell 21, and the top of the first shell 21 is open; the rotating speed of the material throwing structure is designed to be 600-700 rpm, and the rotating speed of the corresponding stripping cavity assembly is designed to be 300 rpm; low-speed operation avoids the impact of the stone material thrown at high speed on the impact plate 220 on the stripping cavity assembly, so that the excessive impact energy does not cause the stone material to be damaged.

[0024] Among them, as Figure 3 , the material throwing structure comprises a lower flow channel plate 36, the lower flow channel plate 36 is connected with an upper flow channel plate 37 through a pipe body 371, the middle part of the upper flow channel plate 37 is provided with a feeding port, the upper surface of the lower flow channel plate 36 located directly below the feeding port is provided with a material distribution cone 38, and the circumferential side of the pipe body 371 is provided with a plurality of material throwing channels; the stripping cavity assembly comprises an annular lining plate 223 arranged on the inner wall part of the first shell 21, the bottom end of the annular lining plate 223 is connected with a first outer ring body 222, the inner wall of the first outer ring body 222 is connected with a first inner ring body 22 through a connecting rod 221, and the inner wall of the annular lining plate 223 is provided with a plurality of first impact plates 220 distributed in a ring shape; a through hole 211 is formed in the center of the bottom of the first shell 21, a first bearing 212 is mounted at the through hole 211, the inner ring of the first bearing 212 is assembled with a shaft pipe 213, the end of the shaft pipe 213 is fixed to the bottom side of the first inner ring body 22, an annular sealing ring is arranged on the inner wall of the through hole 211, and the annular sealing ring and the outer wall surface of the shaft pipe 213 are in sealing cooperation; impact blocks 372 are detachably mounted on both sides of the material throwing channel.

[0025] By arranging the stripping cavity assembly and the material throwing structure rotating in opposite directions, the stone material is subjected to relative movement, rubbing and friction between the two; high-efficiency stripping of the asphalt milling material is realized, and the stripping efficiency and uniformity are improved through the combination of centrifugal throwing and reverse rubbing.

[0026] In use, the asphalt milling material is thrown into the top hopper assembly 1 and then enters the inside of the stripping mechanism 2; the stone material first falls on the distribution cone 38 in the center of the throwing structure and is evenly dispersed to the four sides of the stripping cavity; the thrown stone material is subjected to rubbing, friction, extrusion and other comprehensive effects with the impact plate of the stripping cavity moving in the opposite direction; the buffer baffle is installed at the lower end of the stripping cavity, which can be adjusted according to the stripping effect and the size of the added milling material to achieve sufficient effective stripping time for the asphalt milling material in the stripping mechanism 2; the stripped aggregate and debris are discharged from the discharge pipe at the bottom of the first shell 21; the stone material discharged from the discharge pipe is screened by the screening device to complete the separation of asphalt and stone material; in the above, the stone material falls into the throwing structure and first hits the distribution cone 38 in the center; the conical design of the distribution cone 38 can evenly disperse the falling stone material to the four sides of the throwing channel; the rotating throwing channel, like the impeller of a centrifugal pump, throws the stone material falling into it out along the channel; at this point, the stone material thrown out of the throwing structure hits the impact plate 220 on the stripping cavity assembly rotating in the opposite direction, and the rubbing, friction and shearing between the stone material and the surface of the impact plate 220 and between the stone materials can effectively knock and strip the tough and aged asphalt film from the surface of the aggregate.

[0027] In order to facilitate the rotation of the stripping cavity assembly and the throwing structure, motor supports 30 are fixed to the outer top side of the device body 3 on both sides of the stripping mechanism 2, and first and second motors 31 and 32 are respectively installed on the two motor supports 30; the first and second motors 31 and 32 respectively drive the throwing structure and the stripping cavity assembly to rotate.

[0028] Specifically, as Figures 2-3 , the output ends of the first and second motors 31 and 32 extend to the inside of the installation cavity, and the ends of the two are respectively provided with first and second driving pulleys 311 and 321; a horizontal support plate 33 is arranged in the installation cavity, and the first and second shafts 34 and 35 are respectively arranged on the support plate 33 through two bearing seats 331, and the bottom ends of the first and second shafts 34 and 35 are respectively provided with second and first driven pulleys 341 and 351, and the second driven pulley 341 and the second driving pulley 321, and the first driven pulley 351 and the first driving pulley 311 are connected through a transmission belt; a gear ring 214 is arranged on the outer wall surface of the shaft tube 213, and a gear 352 is arranged on the top of the second shaft 35 and engaged with the gear ring 214; the top of the first shaft 34 is connected to the bottom of the distribution cone 38; the first motor 31 drives the first shaft 34 to rotate at high speed through the belt, thereby driving the throwing structure to rotate, and the second motor 32 drives the second shaft 35 to rotate at high speed through the belt, and the second shaft 35 drives the stripping cavity assembly to rotate through the cooperation of the gear ring 214 and the gear 352.

[0029] The top of the first rotating shaft 34 passes through the first inner ring body 22, and a second bearing is connected between the first inner ring body 22 and the first rotating shaft 34; the bottom of the first housing 21 located between the first outer ring body 222 and the first inner ring body 22 is provided with an opening for installing the unloading pipe, so as to ensure that the stripped stone can fall smoothly and centrally from the gap between the first outer ring body 222 and the first inner ring body 22 into the unloading pipe, avoiding material accumulation.

[0030] Based on the above, in order to facilitate the control of the stone material entering the stripping mechanism 2 from the feeding hopper assembly 1, such as... Figures 5-6 The hopper assembly 1 provided by the present invention includes an annular support plate 10 installed on the top surface of the first housing 21. A hopper body 12 is installed in the middle of the annular support plate 10. A protruding discharge port 121 is connected to the bottom side of the hopper body 12. The discharge port 121 is located directly above the throwing structure.

[0031] like Figure 3 A first top plate 224 is fixed to the top surface of the annular liner 223. A first mounting hole is opened in the middle of the first top plate 224. A tube 225 is fixed in the first mounting hole. The bottom end of the tube 225 is slightly higher than the upper surface of the upper flow channel plate 37. A second top plate 226 is set on the top of the tube 225. A second mounting hole is opened in the middle of the second top plate 226. A trough 227 with an open top is installed in the second mounting hole. A feed pipe 228 is connected to the bottom of the trough 227. The bottom end of the feed pipe 228 passes through the feed inlet and extends into the throwing structure. The feed pipe 228 and the trough 227 form a flow guiding structure. The presence of this flow guiding structure can accurately guide the stone to enter from the feed inlet at the top of the throwing structure.

[0032] like Figure 4 A rubber sealing washer 210 is provided on the top surface of the first housing 21, and the bottom side of the annular support plate 10 abuts against the rubber sealing washer 210. The rubber sealing washer 210 ensures the sealing of the connection and prevents dust from escaping. A groove 101 is provided on the outer periphery of the annular support plate 10. A protrusion 216 is provided on the outer wall of the first housing 21, and a hinge seat 214 is provided on the protrusion 216. A tension bolt 215 is hinged to the hinge seat 214 through a hinge shaft. During installation, the annular support plate 10 is supported against the rubber sealing washer 210, and the tension bolt 215 is rotated to control the tension bolt 215 to pass through the groove 101. A wing nut that abuts against the upper surface of the annular support plate 10 is then threaded onto the stud section of the tension bolt 215.

[0033] The first side reinforcing plate 229 is connected between the second top plate 226 and the groove 227, and the at least two second side reinforcing plates 13 are connected between the bottom side of the hopper body 12 and the inner wall surface of the hopper body 12; the third side reinforcing plate 122 is connected between the connecting ring 123 and the hopper body 12; the first side reinforcing plate 229, the second side reinforcing plate 13 and the third side reinforcing plate 122 are arranged to enhance the structural strength of the connecting parts.

[0034] As Figures 5-6 The arc-shaped support blocks 15 are arranged on the top end surface of the second side reinforcing plate 13, and the inner wall surface of the arc-shaped support block 15 is provided with an arc-shaped protrusion; the rectangular holes 14 are arranged on the side wall of the hopper body 12 located between the two second side reinforcing plates 13, and the side plates 141 are mounted at the rectangular holes 14, and the side plates 141 are provided with a plurality of vertical rectangular ventilation holes 142; the arc-shaped baffle plates 16 are arranged, and a plurality of open grooves 161 are arranged on the two end surfaces of the baffle plates 16 and supported on the arc-shaped support blocks 15; during installation, the two ends of the arc-shaped support blocks 15 are respectively inserted into the open grooves 161 at the two ends of the arc-shaped support blocks 15; by adjusting the installation height of the baffle plates 16, the maximum stone storage capacity in the hopper assembly 1 during use can be adjusted, and the cooperation of the arc-shaped baffle plates and the arc-shaped support blocks can guide the flow of the stones; the side plates are detachable, and the blockage of the rectangular holes 14 can be easily cleaned.

[0035] The outer wall surface of the baffle plate 16 is attached to the inner wall surface of the hopper body 12, and the arc-shaped protrusion is abutted against the inner wall surface of the baffle plate 16; the ventilation opening 143 is arranged on the inner wall of the hopper body 12 located at the top of the rectangular hole 14, the upper surface of the annular support plate 10 is provided with the second shell 18 penetrating through, and the second shell 18 and the top of the hopper body 12 are connected by the connecting ring 123; the hoisting block 17 is mounted on the top surface of the connecting ring 123, and the hoisting block facilitates the hoisting and carrying of the entire hopper assembly; the negative pressure hole is arranged on the connecting ring 123 or the second shell 18, and the negative pressure hole is connected to the negative pressure equipment by the negative pressure pipe; the negative pressure equipment can be externally connected to the dust removal equipment, and a micro-negative pressure is formed in the hopper assembly 1, so that the dust generated during the feeding process into the hopper assembly 1 can be effectively collected.

[0036] The above disclosure is only a few specific embodiments of the present application, but the embodiments of the present application are not limited thereto, and any changes that can be thought of by those skilled in the art shall fall within the protection scope of the present application.

Claims

1. An asphalt millings material stripping device, characterized by, The peeling mechanism (2) comprises a top-opened first shell (21); The inside of the first shell (21) is internally provided with a peeling cavity assembly and a material throwing structure, the material throwing structure comprises a lower runner plate (36), the lower runner plate (36) is connected with an upper runner plate (37) through a pipe body (371), the middle part of the upper runner plate (37) is provided with a feeding port, the upper surface of the lower runner plate (36) located directly below the feeding port is provided with a distribution cone (38), and the circumferential side of the pipe body (371) is provided with a plurality of material throwing channels; The rotation directions of the material throwing structure and the peeling cavity assembly are opposite; The peeling mechanism (2) is mounted on an annular support (301), the annular support (301) is fixed on the top side of a device main body (3), the device main body (3) is internally formed with a mounting cavity, the bottom of the first shell (21) is communicated with a discharging pipe (20), and the discharging pipe (20) is located in the mounting cavity and penetrates through the bottom of the device main body (3) at the end.

2. An apparatus for stripping asphalt milled material as set forth in claim 1 wherein, The peeling cavity assembly comprises an annular lining plate (223) arranged at the inner wall part of the first shell (21), the bottom end of the annular lining plate (223) is connected with a first outer ring body (222), the inner wall of the first outer ring body (222) is connected with a first inner ring body (22) through a connecting rod (221), and the inner wall of the annular lining plate (223) is provided with a plurality of first impact plates (220) distributed in a ring shape. A through hole (211) is formed at the bottom center of the first shell (21), a first bearing (212) is mounted at the through hole (211), the inner ring of the first bearing (212) is assembled with a shaft pipe (213), and the end of the shaft pipe (213) is fixed to the bottom side of the first inner ring body (22). An annular sealing ring is arranged on the inner wall of the through hole (211), and the annular sealing ring is sealingly connected with the outer wall of the shaft pipe (213); Impact blocks (372) are detachably mounted on both sides of the material throwing channel.

3. A bituminous millings material stripping device as defined in claim 2 wherein, Motor supports (30) are fixed to the outer top side of the device main body (3) located on both sides of the peeling mechanism (2), a first motor (31) and a second motor (32) are respectively mounted on the two motor supports (30); The output ends of the first motor (31) and the second motor (32) extend into the inside of the mounting cavity, and the ends of the two are respectively provided with a first driving pulley (311) and a second driving pulley (321); A horizontal support plate (33) is arranged in the mounting cavity, a first rotating shaft (34) and a second rotating shaft (35) are respectively mounted on the support plate (33) through two bearing seats (331), second driven pulleys (341) and first driven pulleys (351) are mounted at the bottom ends of the first rotating shaft (34) and the second rotating shaft (35), and the second driven pulleys (341) and the second driving pulleys (321) and the first driven pulleys (351) and the first driving pulleys (311) are connected through transmission belts. The outer wall surface of the shaft tube (213) is provided with a gear ring (214), and the top of the second rotating shaft (35) is provided with a gear (352) engaged with the gear ring (214). The top of the first rotating shaft (34) is connected to the bottom of the distributing cone (38).

4. A bituminous millings material stripping device as defined in claim 3 wherein, The top of the first rotating shaft (34) passes through the first inner ring body (22), and the second bearing is connected between the first inner ring body (22) and the first rotating shaft (34).

5. An apparatus for stripping asphalt milled material as defined in claim 2 wherein, The bottom of the first shell (21) between the first outer ring body (222) and the first inner ring body (22) is provided with an opening for mounting a discharging pipe.

6. A bituminous millings material stripping device according to any one of claims 1-5, characterized in that The top of the stripping mechanism (2) is detachably mounted with a hopper assembly (1). The hopper assembly (1) comprises an annular support plate (10) mounted on the top end surface of the first shell (21), and a hopper body (12) mounted on the middle part of the annular support plate (10). The discharging port (121) is located directly above the material throwing structure.

7. An apparatus for stripping asphalt milled material as set forth in claim 6 wherein, The top end surface of the annular lining plate (223) is fixed with a first top plate (224), the middle part of the first top plate (224) is provided with a first mounting hole, and the first mounting hole is fixed with a pipe body (225). The top of the pipe body (225) is provided with a second top plate (226), the middle part of the second top plate (226) is provided with a second mounting hole, and the second mounting hole is mounted with a groove body (227) with an open top. The bottom of the groove body (227) is connected with a discharging pipe (228), and the bottom end of the discharging pipe (228) passes through the feeding port and extends into the material throwing structure. The bottom end surface of the pipe body (225) is slightly higher than the upper surface of the upper runner plate (37), and the first side reinforcing plate (229) is connected between the second top plate (226) and the groove body (227).

8. An asphalt millings material stripping device as defined in claim 7, wherein, The top end surface of the first shell (21) is provided with a rubber sealing gasket (210), and the bottom side surface of the annular support plate (10) abuts against the rubber sealing gasket (210). The outer circumferential side of the annular support plate (10) is provided with a notch (101). The outer wall surface of the first shell (21) is provided with a protrusion (216), the protrusion (216) is provided with a hinge seat (214), the hinge seat (214) is hingedly connected with a tensioning bolt (215) through a hinge shaft, and the tensioning bolt (215) passes through the notch (101) and is threadedly connected with a wing nut abutting against the upper surface of the annular support plate (10).

9. A bituminous millings material stripping device as recited in claim 6 wherein, The bottom side surface and the inner wall surface of the hopper body (12) are connected with at least two second side reinforcing plates (13), the top end surface of the second side reinforcing plate (13) is provided with an arc-shaped supporting block (15), and the inner side wall of the arc-shaped supporting block (15) is provided with an arc-shaped protrusion. Rectangular holes (14) are formed in the side wall of the hopper body (12) between the two second side reinforcing plate (13) supports, and side plates (141) are mounted at the rectangular holes (14). The side plates (141) are provided with a plurality of vertical rectangular ventilation holes (142). The arc-shaped baffle (16) is provided with a plurality of open grooves (161) at both ends of the baffle (16) and supported on the arc-shaped supporting blocks (15); During installation, both ends of the arc-shaped supporting blocks (15) are respectively inserted into the open grooves (161) at both ends of the arc-shaped supporting blocks (15); the outer wall surface of the baffle (16) is attached to the inner wall surface of the hopper body (12), and the arc-shaped protrusion is abutted against the inner wall surface of the baffle (16); A ventilation opening (143) is formed in the inner wall of the hopper body (12) at the top of the rectangular hole (14), the upper surface of the annular supporting plate (10) is provided with a penetrating second shell (18), and the second shell (18) and the top of the hopper body (12) are connected by a connecting ring (123).

10. A bituminous millings material stripping device as defined in claim 9 wherein, The connecting ring (123) and the hopper body (12) are connected by a third side reinforcing plate (122), the top surface of the connecting ring (123) is provided with a hoisting block (17), the connecting ring (123) or the second shell (18) is provided with a negative pressure hole, and the negative pressure hole is connected to a negative pressure device by a negative pressure pipe.

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