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CN-224221438-U - Recovery unit is smashed to abandonment asphalt mixture

CN224221438UCN 224221438 UCN224221438 UCN 224221438UCN-224221438-U

Abstract

The utility model relates to the technical field of asphalt crushing and recycling, in particular to a waste asphalt mixture crushing and recycling device which comprises a crushing box, a pair of crushing roller groups, a support, two rotating shafts penetrating through a support bearing seat, fan blades fixedly connected to the end parts of the rotating shafts and a driving assembly, wherein shaft holes are symmetrically formed in two side walls of the crushing box, the pair of crushing roller groups comprise conical guide pipes fixedly connected to the end parts of the crushing rollers, two hollow crushing rollers and a plurality of crushing teeth uniformly distributed along the outer circumference of the crushing rollers, two ends of each crushing roller are in rotary fit with the shaft holes of the crushing box through bearings, the fan blades are fixedly connected to the end parts of the rotating shafts, and the driving assembly is in transmission connection with the two rotating shafts to drive the fan blades to rotate. According to the utility model, through the arrangement of the bracket, the rotating shaft, the fan blades and the driving component, the effective dissipation of heat generated in the crushing process is realized, asphalt is prevented from being melted and stuck in equipment due to temperature rise, and the crushing efficiency and the normal operation of the equipment are ensured.

Inventors

  • YANG HUI
  • XIE PING
  • LI XUEFENG

Assignees

  • 内蒙古嘉欣建材有限公司

Dates

Publication Date
20260512
Application Date
20250529

Claims (8)

  1. 1. The utility model provides a recovery unit is smashed to abandonment bituminous mixture which characterized in that includes: the two side walls of the crushing box (2) are symmetrically provided with shaft holes; The pair of crushing roller groups comprises two hollow crushing rollers (4) and a plurality of crushing teeth (5) uniformly distributed along the outer circumference of the crushing rollers (4), and two ends of the crushing rollers (4) are in rotary fit with the shaft holes of the crushing box (2) through bearings; The conical guide pipes (6) are fixedly connected to the end parts of the crushing rollers (4), and the inner diameter of the inlet end of each guide pipe (6) is larger than that of the outlet end to form a tapered flow passage; the bracket (8) is fixedly connected to the outer wall of the crushing box (2) and is provided with symmetrically distributed bearing seats; The two rotating shafts (9) penetrate through the bearing seat of the bracket (8), and the rotating shafts (9) and the bearing seat form a running fit; the fan blades (13) are fixedly connected to the end parts of the rotating shafts (9); The driving component is in transmission connection with the two rotating shafts (9) to drive the fan blades (13) to rotate.
  2. 2. The device for crushing and recycling the waste asphalt mixture according to claim 1, wherein the driving assembly comprises a connecting shaft (11), a first gear (14) and two second synchronous wheels (12), the connecting shaft (11) penetrates through the bracket (8) and is rotationally connected with the bracket, the two second synchronous wheels (12) are respectively and fixedly connected with the connecting shaft (11) and the end part of one rotating shaft (9), and the two second synchronous wheels (12) are in transmission connection through a synchronous belt.
  3. 3. The device for crushing and recycling the waste asphalt mixture according to claim 2, wherein the driving assembly further comprises two first synchronous wheels (10), the two first synchronous wheels (10) are respectively and fixedly connected to the end parts of the corresponding rotating shafts (9), and the two first synchronous wheels (10) are in transmission connection through synchronous belts.
  4. 4. The device for crushing and recycling the waste asphalt mixture according to claim 3, wherein the driving assembly further comprises two second gears (15), a stepping motor (17), a fourth gear (18) and a third gear (16), the two second gears (15) are respectively and fixedly connected to the end parts of the corresponding first gears (14), the first gears (14) are meshed with one of the second gears (15), the third gear (16) is fixedly connected to the end parts of the crushing rollers (4), the fourth gear (18) is fixedly connected to the output end of the stepping motor (17), and the fourth gear (18) is meshed with the third gear (16).
  5. 5. The device for crushing and recycling the waste asphalt mixture according to claim 4, further comprising a frame (1), wherein the crushing box (2) is fixedly connected to the inner wall of the frame (1), and a feed hopper (3) is fixedly connected to the top of the crushing box (2).
  6. 6. The device for smashing and recycling the waste asphalt mixture according to claim 5, wherein the outer wall of the frame (1) is fixedly connected with a fixing frame (23), the inner wall of the fixing frame (23) is fixedly connected with a double-acting air cylinder (24), and the output end of the double-acting air cylinder (24) is fixedly connected with a connecting plate (25).
  7. 7. The device for crushing and recycling the waste asphalt mixture according to claim 6, further comprising an obliquely arranged mounting frame (19), wherein a screen (21) is fixedly connected to the inner wall of the mounting frame (19), a limiting frame (20) is fixedly connected to the top of the mounting frame (19), two sliding rods (22) are fixedly connected to the bottom of the mounting frame (19), the ends of the sliding rods (22) penetrate through the frame (1) and are in sliding connection with the frame, and the connecting plates (25) are fixedly connected with the two sliding rods (22).
  8. 8. The device for crushing and recycling the waste asphalt mixture according to claim 7, wherein a plurality of reinforcing ribs (7) are fixedly connected to the inner walls of the two crushing rollers (4).

Description

Recovery unit is smashed to abandonment asphalt mixture Technical Field The utility model relates to the technical field of asphalt crushing and recycling, in particular to a crushing and recycling device for waste asphalt mixture. Background Along with the development of road construction and maintenance industry, the recycling of the waste asphalt mixture becomes an important way for saving resources and reducing cost. In the treatment process of the waste asphalt mixture, pulverization is an indispensable pre-process. However, when the device in the prior art pulverizes asphalt, on one hand, a large amount of heat can be generated by high-speed friction between mechanical parts of the pulverizing equipment and asphalt materials, on the other hand, the pulverizing equipment continuously runs for a long time, and the parts of the device are heated up due to friction heat, so that the heat is difficult to quickly dissipate, the temperature of the asphalt is increased, the asphalt is locally melted, the melted asphalt can be adhered to the inside of the pulverizing equipment, structures such as pulverizing teeth, flow channels and the like are blocked, and the pulverizing efficiency and the normal operation of the equipment are affected. Disclosure of utility model Based on the technical problems that the device in the prior art can cause the asphalt to generate local melting phenomenon when crushing the asphalt, the melted asphalt can be adhered inside crushing equipment to block the crushing teeth, the flow channels and other structures, and the crushing efficiency and the normal operation of the equipment are affected, the utility model provides a waste asphalt mixture crushing and recycling device. The utility model provides a waste asphalt mixture smashing and recycling device which comprises a smashing box, a pair of smashing roller sets, a support, two rotating shafts penetrating through support bearing seats, fan blades fixedly connected to the end parts of the rotating shafts and a driving assembly, wherein the smashing roller sets are arranged on the support; Shaft holes are symmetrically arranged on the two side walls of the crushing box; The crushing roller sets comprise conical guide pipes fixedly connected to the end parts of the crushing rollers, two hollow crushing rollers and a plurality of crushing teeth uniformly distributed along the outer circumference of the crushing rollers, two ends of the crushing rollers are in rotary fit with shaft holes of the crushing box through bearings, and the inner diameter of the inlet end of each guide pipe is larger than the inner diameter of the outlet end of each guide pipe to form a tapered flow channel; the bracket is fixedly connected to the outer wall of the crushing box and is provided with symmetrically distributed bearing seats; The rotating shaft and the bearing seat form a rotating fit; fan blades fixedly connected to the end parts of the rotating shafts; the driving component is in transmission connection with the two rotating shafts so as to drive the fan blades to rotate. Preferably, the driving assembly comprises a connecting shaft, a first gear and two second synchronous wheels, wherein the connecting shaft penetrates through the bracket and is rotationally connected with the bracket, the two second synchronous wheels are respectively and fixedly connected with the connecting shaft and one of the end parts of the rotating shaft, and the two second synchronous wheels are in transmission connection through a synchronous belt. Preferably, the driving assembly further comprises two first synchronous wheels, the two first synchronous wheels are respectively and fixedly connected to the corresponding rotating shaft end parts, and the two first synchronous wheels are in transmission connection through a synchronous belt. Preferably, the driving assembly further comprises two second gears, a stepping motor, a fourth gear and a third gear, the two second gears are respectively and fixedly connected to the corresponding first gear end parts, the first gear is meshed with one of the second gears, the third gear is fixedly connected with the end parts of the crushing rollers, the fourth gear is fixedly connected to the output end of the stepping motor, and the fourth gear is meshed with the third gear. Preferably, the waste asphalt mixture smashing and recycling device further comprises a frame, wherein the smashing box is fixedly connected to the inner wall of the frame, and the top of the smashing box is fixedly connected with a feeding hopper. Preferably, the rack outer wall fixedly connected with mount, mount inner wall fixedly connected with double-acting cylinder, double-acting cylinder output fixedly connected with connecting plate. Preferably, the waste asphalt mixture smashing and recycling device further comprises an installation frame which is obliquely arranged, the inner wall of the installation frame is fixedly connected with a screen, t