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CN-224228873-U - Rubber asphalt pump

CN224228873UCN 224228873 UCN224228873 UCN 224228873UCN-224228873-U

Abstract

The utility model relates to a rubber asphalt pump, which comprises a screw, a pump shell and a rotary drum group. The pump shell is provided with a feeding pipe and a discharging pipe. The rotary drum group comprises a movable rotary drum and a fixed rotary drum. An end plate I is formed at one end of the movable rotary drum, an end plate II is formed at one end of the fixed rotary drum, and a plurality of strip-shaped slotted holes distributed at intervals around the circumferential direction are formed on the side walls of the two rotary drums. The open end of the moving drum extends into the stationary drum with a gap formed between the opposing peripheral surfaces. The first end plate is matched with the screw rod, so that the movable rotary drum can rotate synchronously with the screw rod. The second end plate is assembled at one end of the pump housing and faces the fixed drum to the feed pipe. The first end plate is provided with a plurality of through holes which can communicate the movable rotary drum with the pump shell. The screw is provided with a stirring paddle which can rotate synchronously with the screw to promote the material to flow into the movable rotary drum from the outside of the fixed rotary drum and to be conveyed into the pump shell. The utility model can simultaneously shear and mix the rubber asphalt in the process of conveying the rubber asphalt, thereby being beneficial to shortening the development time of the rubber asphalt.

Inventors

  • ZHANG SONGPENG
  • YANG SHUWEI

Assignees

  • 济南因特瑞路桥工程有限公司

Dates

Publication Date
20260512
Application Date
20250708

Claims (10)

  1. 1. The rubber asphalt pump comprises a motor unit (10), a screw (20) and a pump shell (30), wherein a feeding pipe (31) and a discharging pipe (32) are respectively arranged at two end sides of the pump shell (30), and a part of the screw (20) extends into the pump shell (30), and is characterized by further comprising a rotary drum group (60) comprising a movable rotary drum (61) and a fixed rotary drum (62); An end plate I (611) is formed at one end of the movable rotary drum (61), an end plate II (621) is formed at one end of the fixed rotary drum (62), and a plurality of strip-shaped slotted holes distributed at intervals around the circumferential direction are respectively arranged on the side walls of the two rotary drums; The end plate I (611) is matched with the screw rod (20) so that the movable rotary drum (61) can synchronously rotate with the screw rod (20), the end plate II (621) is fixedly assembled at one end of the pump shell (30) and the side wall of the fixed rotary drum (62) is opposite to the inner end of the feeding pipe (31), and a radial distance is formed between the outer peripheral surface of the fixed rotary drum (62) and the inner wall surface of the pump shell (30); a plurality of through holes (6112) which can be communicated with the movable rotary drum (61) and the pump shell (30) are formed on the end plate I (611) in a distributed manner; A stirring paddle (22) is arranged on a section of the screw (20) which is arranged in the movable rotary drum (61), and the stirring paddle (22) can rotate synchronously with the screw (20) to promote materials to flow into the movable rotary drum (61) from the periphery of the fixed rotary drum (62) and be conveyed to a pump cavity of the pump shell (30) through the through hole (6112).
  2. 2. The rubber asphalt pump as defined in claim 1, wherein the circumferential width of the strip-shaped slot provided on the side wall of the movable drum (61) is larger than the circumferential width of the strip-shaped slot provided on the side wall of the fixed drum (62).
  3. 3. The rubber asphalt pump as defined in claim 2, wherein the circumferential width of the strip-shaped slot provided on the side wall of the movable drum (61) is 1.2 to 3 times the circumferential width of the strip-shaped slot provided on the side wall of the fixed drum (62).
  4. 4. The rubber asphalt pump according to claim 1, wherein the outer diameter of the end plate one (611) is larger than the outer diameter of the fixed rotor (62), a radial flange having a ring shape is formed at an end port of the pump housing (30) opposite to the movable rotor (61), and an annular groove is formed on an inner peripheral surface of the radial flange, and a circumferential edge of the end plate one (611) is inserted into the annular groove.
  5. 5. The rubber asphalt pump as defined in claim 1, wherein the inner diameter of the feed pipe (31) is smaller than the axial length of the body of the fixed cylinder (62), and the side wall of the fixed cylinder (62) is axially centered opposite to the inner end of the feed pipe (31).
  6. 6. The rubberized asphalt pump according to any one of claims 1 to 5, further comprising a dispersion disk group (70); The dispersion disc group (70) comprises a plurality of first disc bodies (71) and a plurality of second disc bodies (72) which are the same in number; The outer diameter of the first disc body (71) is consistent with the inner diameter of the pump shell (30) and is larger than the outer diameter of the second disc body (72); The first and second plates (71, 72) are alternately arranged in the axial direction, the first plate (71) arranged at one end is opposite to the first end plate (611), and the second plate (72) arranged at the other end is opposite to the inner end of the discharge pipe (32); the axial center of the first disc body (71) is provided with a through hole part (712) for the screw rod (20) to pass through, and radial intervals are formed between the screw rod (20) and the opposite peripheral surfaces of the through hole part (712), the first disc body (71) is fixed in the pump shell (30), and the second disc body (72) can synchronously rotate with the screw rod (20); A plurality of circles of first cylinders (711) are uniformly distributed on two end surfaces of the first disc body (71), a plurality of circles of second cylinders (721) are uniformly distributed on two end surfaces of the second disc body (72), and the plurality of circles of first cylinders (711) distributed on the end surfaces of the first disc body (71) opposite to the second disc body (72) can extend between the two adjacent circles of second cylinders (721) respectively.
  7. 7. The rubber asphalt pump as defined in claim 6, wherein an axial distance is formed between the end face of the first cylinder (711) and the end face of the second plate (72), and an axial distance is formed between the end face of the second cylinder (721) and the end face of the first plate (71).
  8. 8. The rubber asphalt pump as defined in claim 6, wherein the first cylinder (711) and/or the second cylinder (721) are cylindrical.
  9. 9. The rubber asphalt pump according to claim 6, wherein the plurality of first plates (71) are connected in series to form a whole through the plurality of connecting rods (73), a plurality of bayonets (713) are formed on the side wall of the first plate (71) and distributed at intervals in the circumferential direction, a plurality of radial grooves which are matched with the bayonets (713) correspondingly are formed on the side wall of the connecting rods (73) and distributed at intervals in the axial direction, after the bayonets (713) are matched with the radial grooves, the connecting rods (73) can keep the axial positions among the first plates (71) relatively fixed, and the connecting rods (73) are matched with the pump shell (30) fixedly.
  10. 10. The rubber asphalt pump according to claim 9, wherein a ring-shaped groove is formed on the end face of one end plate (611) facing into the pump shell (30), and one end of the connecting rod (73) facing away from the rotary drum group (60) is fixedly connected with the end of the pump shell (30), and the other end of the connecting rod extends into the groove.

Description

Rubber asphalt pump Technical Field The utility model belongs to the technical field of asphalt raw material conveying devices, and particularly relates to a rubber asphalt pump. Background The rubber asphalt pump is a device for conveying rubber asphalt and is divided into a gear pump and a screw pump. The screw pump works in such a way that a spiral space is formed in the pump shell by the rotation of the screw, and the rubber asphalt gradually moves from the feeding pipe at the suction end to the discharging pipe at the discharge end along the spiral space under the pushing of the screw. The clearance between the screw rod and the pump shell is smaller, so that the rubber asphalt can be effectively sealed, and stable conveying is realized. However, the existing rubber asphalt pump only has a conveying function, and can not shear and/or disperse the rubber asphalt in the conveying process, so that the rubber asphalt needs to develop for a long time in a tank, a large amount of heat energy is consumed, and the aging degree of the rubber asphalt is relatively heavy. Disclosure of utility model The utility model aims to provide a rubber asphalt pump which can simultaneously shear and mix rubber asphalt in the process of conveying the rubber asphalt, thereby being beneficial to shortening the development time of the rubber asphalt. The technical scheme adopted by the utility model for solving the technical problems is that the rubber asphalt pump comprises a motor unit, a screw, a pump shell and a rotary drum set. One end of the screw rod is matched with the motor unit, so that the screw rod can rotate under the drive of the motor unit. The two ends of the pump shell are respectively provided with a feeding pipe and a discharging pipe for feeding in and discharging rubber asphalt materials. The screw rod is partially extended into the pump shell, so that the screw rod can convey the rubber asphalt material which is input into the pump shell by the feeding pipe towards one side of the discharging pipe in the rotating process, and output to associated external equipment through the discharging pipe. The rotor set includes a movable rotor and a stationary rotor. An end plate I is formed at one end of the movable drum, and an end plate II is formed at one end of the fixed drum. The movable rotary drum is matched with the screw and can synchronously rotate with the screw, specifically, an axle center hole is formed on the first end plate, and a key slot structure which is correspondingly matched with a key arranged on the screw is formed on the axle center hole. The fixed drum is relatively fixed at one end of the pump housing, the side wall of the fixed drum is opposite to the inner port of the feeding pipe, and a radial distance is formed between the outer peripheral surface of the fixed drum and the inner wall surface of the pump housing. Specifically, the end plate II is fixed at the port of the pump shell and is fixedly connected with an end seat fixedly supporting the end part of the pump shell. The open end of the moving drum extends into the stationary drum with a radial spacing between the opposing peripheral surfaces of the two drums. A plurality of strip-shaped slotted holes distributed at intervals around the circumference are respectively arranged on the side wall of the movable rotary drum and the side wall of the fixed rotary drum. A plurality of through holes which can be communicated with a cylinder cavity of the movable rotary cylinder and a pump cavity of the pump shell are distributed and formed on the surface of the first end plate. On the screw, an agitating paddle is arranged on a section thereof placed in the barrel cavity of the moving drum. The stirring paddle can synchronously rotate along with the screw rod, and can promote materials to flow into the movable rotary drum from the outer side of the fixed rotary drum and flow into the pump cavity of the pump shell through the through hole. Alternatively, the circumferential width of the strip-shaped slot provided on the side wall of the movable drum is larger than the circumferential width of the strip-shaped slot provided on the side wall of the fixed drum. Preferably, the circumferential width of the strip-shaped slot provided on the side wall of the movable drum is made 1.2 to 3 times the circumferential width of the strip-shaped slot provided on the side wall of the fixed drum. Optionally, the outer diameter of the first end plate is greater than the outer diameter of the stationary drum. A radial flange having an annular shape is formed at an end port of the pump housing opposite to the moving drum, and an annular groove is formed on an inner peripheral surface of the radial flange. The circumferential edge of the first end plate is inserted into the annular groove. Optionally, the inner diameter of the feed tube is less than the axial length of the body of the stationary drum and the side wall of the stationary drum is axially center