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CN-121974089-A - Cereal cooling conveyor

CN121974089ACN 121974089 ACN121974089 ACN 121974089ACN-121974089-A

Abstract

The invention relates to the technical field of grain conveying, in particular to a grain cooling conveying device which comprises a pipe chain conveyor consisting of a closed pipeline, a metal chain and a disc scraper, wherein the metal chain is arranged in the pipeline to move, the disc scraper drives materials to move, and a circular seat is arranged at the center of the disc scraper. The grain cooling and conveying device has the advantages that the disc scraper can deflect through the core seat to form a gap, the bottom of a hardened material is enabled to generate a cavity by utilizing friction force of the pipe wall and collapse and loose, the problem of hardening and blocking of the material in the conveying process can be solved without an additional crushing device, the constraint effect of the reset spring ensures that the disc scraper is kept vertically and stably pushed when the loose material is conveyed, the reliability of hardening treatment and conventional conveying is considered, the grain conveying efficiency is effectively improved, the disc scraper is enabled to automatically rotate due to unbalance through the linkage of the bimetal temperature-sensing driving folding bracket and the balance ring, the cooling of a complete material pile is broken by utilizing the convex edges, and meanwhile heat dissipation of the material pile is realized.

Inventors

  • DAI MINGFEI
  • GAO HONGHAI
  • FAN ZHENGANG

Assignees

  • 山东冠县鑫恒祥面业有限公司

Dates

Publication Date
20260505
Application Date
20260313

Claims (8)

  1. 1. The grain cooling and conveying device is characterized by comprising a pipe chain conveyor consisting of a closed pipeline (1), a metal chain (2) and a disc scraper (3), wherein the metal chain (2) is arranged in the pipeline (1) to move and drives a material to move through the disc scraper (3); The center of the disc scraper (3) is provided with a circular seat (4), the circular seat (4) is provided with a through groove (5), a core seat (6) with a shaft is arranged in the through groove (5), the metal chain (2) is fixedly connected with the core seat (6), the disc scraper (3) is rotationally connected along the core seat (6) through the through groove (5), and notches at two sides of the through groove (5) are provided with bevel ports (7) for limiting the rotation angle of the disc scraper (3); The inclined opening (7) is internally provided with a caulking groove (8), and a reset spring (9) for restraining the position of the disc scraping plate (3) is arranged in the caulking groove (8).
  2. 2. The grain cooling and conveying device according to claim 1, wherein the outer ring of the round seat (4) is provided with a ring groove (10), and the disc scraper (3) is provided with an annular structure and is rotationally arranged along the ring groove (10); The back surface of the disc scraper (3) is provided with a balance ring (11), and the balance ring (11) and the disc scraper (3) are coaxially arranged through elastic ropes (12); Two grooves (13) are formed in the back surface of the disc scraper (3) in opposite directions, bimetallic strips (14) are fixedly arranged in the grooves (13), folding supports (15) are fixedly arranged at the free ends of the bimetallic strips (14), the folding supports (15) are folded into the grooves (13) when being positioned on the upper side of the disc scraper (3) and are not contacted with the balance ring (11), and the folding supports are unfolded to be clamped with the balance ring (11) when being positioned on the lower side; The disc scraper (3) is fixedly provided with a plurality of convex edges (16) towards the material surface.
  3. 3. The grain cooling and conveying device according to claim 1, wherein the upper side and the lower side of the disc scraper (3) are provided with mounting holes (17), thermoelectric generation pieces (18) are fixedly mounted in the mounting holes (17), two sides of each thermoelectric generation piece (18) are respectively positioned on a back material surface and a facing material surface of the disc scraper (3), and the thermoelectric generation pieces (18) are connected with sensors (19).
  4. 4. The grain cooling and conveying device according to claim 1, wherein the return spring (9) is a torsion spring, and two ends of the torsion spring are respectively abutted against the inner wall of the bevel opening (7) and the side wall of the through groove (5) of the disc scraper (3).
  5. 5. A grain cooling and conveying device according to claim 2, wherein the ribs (16) are uniformly distributed radially along the disc scraper (3) to the material surface, and the ends of the ribs (16) are provided with arc transition structures.
  6. 6. The grain cooling and conveying device according to claim 2, wherein the elastic ropes (12) are stainless steel wire core polyurethane elastic ropes, and four elastic ropes (12) are uniformly arranged along the circumferential direction of the balance ring (11).
  7. 7. A grain cooling and conveying device according to claim 3, wherein the outer surface of the thermoelectric generation piece (18) is covered with a high-temperature-resistant insulating coating, and a protective cover plate which is flush with the disc scraper (3) is arranged at the mounting opening (17).
  8. 8. The grain cooling and conveying device according to claim 1, wherein a lubricating grease layer is arranged on the matching surface of the round seat (4) and the core seat (6), and a polytetrafluoroethylene wear-resistant lining is arranged on the inner wall of the through groove (5).

Description

Cereal cooling conveyor Technical Field The invention relates to the technical field of grain conveying, in particular to a grain cooling conveying device. Background The grains are subjected to multi-ring treatment such as drying, cooling, conveying, storing and the like after being harvested, wherein the conveying ring after cooling directly influences the storage quality and the conveying efficiency of the grains. At present, equipment such as a pipe chain conveyor, a belt conveyor and the like is adopted for grain conveying, and although continuous conveying can be realized, a plurality of problems to be solved still exist in practical application: firstly, the grains possibly have hardening phenomena due to factors such as uneven moisture distribution, incomplete cooling and the like after cooling, especially in a large-scale conveying scene, hardening materials have poor fluidity and concentrated weight, are easy to accumulate and block in a conveying pipeline, not only lead to conveying interruption, but also possibly cause equipment part abrasion and grain rolling loss due to forced conveying, the existing conveying device lacks self-adaptive loosening functions for the hardening materials, needs manual shutdown cleaning and seriously affects the working efficiency. In addition, after part of grains do not reach the preset cooling standard in the pre-cooling flow and the high Wen Guwu enters the conveying link, if the grains are still conveyed in a dense material pile mode, heat is difficult to dissipate, local heat accumulation is easy to occur, and further the grains are mildewed and agglomerated, and the subsequent storage risk is increased. Moreover, the traditional conveying device is poor in sealing performance, dust leakage is easy to occur in the conveying process, grain loss and environmental pollution are caused, meanwhile, for abnormal working conditions such as substandard cooling, hardening of materials and the like in the conveying process, the existing equipment lacks real-time early warning capability, and workers are difficult to timely perceive and adjust the operation flow, so that problems are enlarged, and the overall production efficiency and the grain quality are affected. In addition, in the long-term use of the pipe chain conveyor, the matched parts of the scraping plate, the chain and the pipeline are easy to wear due to friction, the traditional scraping plate is fixed in structure, stable conveying of loose materials and self-adaptive adjustment under special working conditions are difficult to consider, so that equipment maintenance cost is increased, and service life is shortened. In view of this, we propose a grain cooling conveyor that has the loose hardened material of self-adaptation concurrently, the heat dissipation of secondary cooling, unusual operating mode early warning function. Disclosure of Invention The invention aims to provide a grain cooling and conveying device, which aims to solve the problems of low grain conveying efficiency, difficult quality control and high maintenance cost in the prior art. The grain cooling and conveying device comprises a pipe chain conveyor consisting of a closed pipeline, a metal chain and a disc scraper, wherein the metal chain is arranged in the pipeline to move, and the disc scraper drives materials to move; The center of the disc scraper is provided with a circular seat, the circular seat is provided with a through groove, a core seat with a shaft is arranged in the through groove, a metal chain is fixedly connected with the core seat, the disc scraper is rotationally connected along the core seat through the through groove, and notches at two sides of the through groove are provided with bevel ports for limiting the rotation angle of the disc scraper; The chute is formed in the bevel opening, and a reset spring for limiting the position of the disc scraping plate is arranged in the chute. Preferably, the outer ring of the circular seat is provided with a ring groove, and the disc scraping plate is of an annular structure and is rotationally arranged along the ring groove; the back material surface of the disc scraper is provided with a balance ring, and the balance ring and the disc scraper are coaxially arranged through elastic ropes; The back material surface of the disc scraper is provided with two grooves in opposite directions, bimetallic strips are fixedly arranged in the grooves, the free ends of the bimetallic strips are fixedly provided with folding brackets, when the folding brackets are positioned on the upper side of the disc scraper, the folding retraction grooves are not contacted with the balance ring, and when the folding brackets are positioned on the lower side of the disc scraper, the folding brackets are unfolded and clamped with the balance ring; the scraper disc is fixedly provided with a plurality of ribs towards the material surface. Preferably, the upper and lower both sides of disc scraper blad