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CN-224221520-U - Main shaft component of multi-head classifier, classifying impeller assembly and multi-head classifier

CN224221520UCN 224221520 UCN224221520 UCN 224221520UCN-224221520-U

Abstract

The utility model relates to the technical field of graders, in particular to a main shaft component of a multi-head grader, a grading impeller assembly and the multi-head grader. The main shaft component of the multi-head classifier comprises a bearing seat, a bearing and a circulating lubrication system, wherein an oil inlet and an oil drain are formed in the bearing seat, the bearing is arranged in the bearing seat, and the circulating lubrication system is respectively connected with the oil inlet and the oil drain. The multi-head classifier classifying impeller assembly comprises an impeller and a main shaft component, wherein the impeller is connected with the right end of the main shaft. The multi-head classifier comprises a classifying impeller assembly of the multi-head classifier. The utility model increases a circulating lubrication system, so that the main shaft component can keep a lower temperature at a high rotating speed, the service life is prolonged, the overhaul and maintenance period of the whole main shaft component is prolonged, the rotating speed can be continuously increased on the basis of the existing rotating speed, and the equipment can still stably operate, thereby improving the powder selecting precision and efficiency of the classifier.

Inventors

  • TANG CHAOFA
  • ZHANG JIAN
  • OU JIAQING
  • SU XIAOJUN
  • LONG XIAOBO
  • RONG XINGUO
  • FENG KANG
  • LIANG XIANG

Assignees

  • 桂林鸿程矿山设备制造有限责任公司

Dates

Publication Date
20260512
Application Date
20250522

Claims (10)

  1. 1. A spindle assembly for a multi-headed classifier, comprising: The bearing seat (1), the bearing seat (1) is of a shell structure, and an oil inlet (1-1) and an oil discharge port (1-2) are formed in the bearing seat; a bearing (3), the bearing (3) is arranged in the bearing seat (1), and The circulating lubrication system (2), the circulating lubrication system (2) is respectively connected with the oil inlet (1-1) and the oil drain port (1-2), and the circulating lubrication system (2) is used for lubricating the bearing (3) in the process of enabling lubricating oil to flow from the oil inlet (1-1) to the oil drain port (1-2).
  2. 2. The spindle assembly of a multi-head classifier as claimed in claim 1, wherein the spindle assembly further comprises a spindle (4), the spindle (4) being mounted on the bearing (3).
  3. 3. The main shaft part of the multi-head classifier as claimed in claim 1, wherein the oil inlet (1-1) is arranged on the outer side above the bearing (3), and the oil outlet (1-2) is arranged on the outer side below the bearing (3) .
  4. 4. The spindle assembly of a multi-head classifier according to claim 1, wherein a plurality of bearings (3) are provided and distributed at both left and right ends in the bearing housing (1).
  5. 5. The main shaft component of the multi-head classifier as claimed in claim 4, wherein the oil inlet (1-1) is arranged between bearings (3) at the left end and the right end of the bearing seat (1), and an oil drain port (1-2) is arranged at the outer side below each bearing (3).
  6. 6. The spindle assembly of a multi-head classifier according to claim 1, further comprising end caps (5), wherein the end caps (5) are respectively arranged at the left end and the right end of the bearing seat (1).
  7. 7. A spindle assembly of a multi-head classifier as claimed in claim 6, wherein a non-contact seal assembly is provided between the end cap (5) and the bearing housing (1).
  8. 8. A classifying impeller assembly of a multi-head classifier, characterized by comprising an impeller (6) and a spindle unit according to any one of claims 1 to 7, said impeller (6) being connected to the right end of said spindle (4).
  9. 9. The classifying impeller assembly of a multi-head classifier as set forth in claim 8, wherein said classifying impeller assembly of a multi-head classifier further comprises a driving system (7), said driving system (7) being connected to the left end of said main shaft (4).
  10. 10. A multi-head classifier comprising a classifying impeller assembly according to any one of claims 8 to 9.

Description

Main shaft component of multi-head classifier, classifying impeller assembly and multi-head classifier Technical Field The utility model relates to the technical field of graders, in particular to a main shaft component of a multi-head grader, a grading impeller assembly and the multi-head grader. Background The classifier is a key device in the grinding industry, and is mainly used for classifying the particle size of powder materials so as to meet the requirements of different application scenes on the particle fineness and uniformity. The multi-head classifier is matched with a mill such as a vertical mill, a ball mill and the like to form a closed-circuit system, and is widely applied to classification of ultrafine powder in the industries such as nonmetal ore processing, metal powder processing, cement and building materials, chemical industry and new materials. In the conventional horizontal multi-head classifier, bearings are lubricated by filling grease, as shown in fig. 1, and the arrows in fig. 1 indicate grease inlets. With the improvement of the rotating speed demand, the bearing heats up seriously, and burns out the bearing when severe, so that the overhaul and maintenance period of the main shaft part is shortened, and the cost is increased. Disclosure of utility model The utility model aims to provide a main shaft component of a multi-head classifier, which solves the technical problem that a bearing is easy to heat and burn at a high rotating speed in the prior art. In order to achieve the above purpose, the utility model adopts the following technical scheme: A multi-headed classifier spindle assembly comprising: The bearing seat is of a shell structure, and is provided with an oil inlet and an oil outlet; A bearing provided in the bearing housing, and The circulating lubrication system is connected with the oil inlet and the oil drain port through pipelines respectively and is used for lubricating the bearing in the process of enabling lubricating oil to flow from the oil inlet to the oil drain port. According to the invention, by arranging the circulating lubrication system, lubricating oil can be fed from the oil inlet of the bearing seat, the bearing is lubricated in the bearing seat, the lubricating oil is discharged from the oil discharge port of the bearing seat after the bearing is lubricated, heat is taken away, and the lubricating oil returns to the circulating lubrication system for cooling and circulating lubrication. Furthermore, the main shaft component of the multi-head classifier further comprises a main shaft, the main shaft is arranged on the bearing, two ends of the main shaft respectively penetrate out of the bearing seat, one end of the main shaft is used for being connected with the impeller, and the other end of the main shaft is used for being connected with the driving system. Furthermore, the oil inlet is arranged on the outer side above the bearing, and the oil drain is arranged on the outer side below the bearing. The position relationship between the oil inlet and the oil outlet is to form a height difference so that lubricating oil can flow in the bearing seat depending on self gravity and fluidity, and on the other hand, the stroke between the oil inlet and the oil outlet is shortest as possible so that the lubricating oil can quickly take away heat and return to a circulating lubrication system. Furthermore, the bearing is provided with a plurality of bearings which are distributed at the left end and the right end in the bearing seat. More specifically, the left and right of the small machine type are respectively provided with a bearing, the right end of the large machine type is provided with two bearings, and the left end of the large machine type is provided with a bearing. Furthermore, the oil inlet is arranged between the bearings at the left end and the right end of the bearing seat, and the outer side of the lower part of each bearing is provided with an oil drain port, so that the collection of lubricating oil and the flow of lubricating oil are further accelerated. Furthermore, the main shaft part of the multi-head classifier also comprises two end covers which are respectively arranged at the left end and the right end of the bearing seat. The end cover is used for supporting and positioning the bearing on one hand and sealing the bearing seat cavity on the other hand, preventing the thin oil in the bearing seat cavity from coming out and preventing external dust from entering. Furthermore, a non-contact sealing component is arranged between the end cover and the bearing seat. The sealing component is of a non-contact thread structure. The non-contact type thread structure is adopted for sealing, the oil seal type contact sealing element is replaced, replacement is not needed, and the service life is longer. Further, the bearing is a ball bearing. Furthermore, when the ball of the bearing is positioned right below the bearing, the lower edge of th