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CN-121977011-A - Clamping structure and ceramic roller with same

CN121977011ACN 121977011 ACN121977011 ACN 121977011ACN-121977011-A

Abstract

A clamping structure and a ceramic roller with the same relate to the technical field of end connection of ceramic roller shafts and comprise a shaft sleeve, a locking piece and a sleeve, wherein the shaft sleeve is sleeved at the shaft end of the ceramic roller, external threads are arranged on the outer surface of the shaft sleeve, a round table-shaped inner cavity is formed in one end of the shaft sleeve, the threads are connected to the external threads of the shaft sleeve, the sleeve is sleeved on a central shaft of the ceramic roller and comprises an integrally formed connecting portion and a clamping head portion, the connecting portion is connected with the bottom of the inner cavity of the shaft sleeve, and the clamping head portion is located between the shaft sleeve and the locking piece. According to the clamping mechanism, the clamping force is higher, the structure is firmer, the maintainability is stronger, the looseness of the ceramic roller can be reduced, and the stable operation of the large-size ceramic roller can be maintained.

Inventors

  • ZHANG JIDONG

Assignees

  • 康姆罗拉有限公司

Dates

Publication Date
20260505
Application Date
20260309

Claims (8)

  1. 1. A clamping mechanism for clamping a ceramic roll, comprising: the shaft sleeve (1) is sleeved at the shaft end of the ceramic roller, an external thread (11) is arranged on the outer surface of the shaft sleeve (1), and a truncated cone-shaped inner cavity (12) is arranged at one end of the shaft sleeve (1); The locking piece (2) is in threaded connection with the external thread (11) of the shaft sleeve (1); the sleeve (3) is sleeved on the central shaft of the ceramic roller body (4), the sleeve (3) comprises a connecting portion (31) and a clamping head portion (32) which are integrally formed, the connecting portion (31) is connected with the bottom of an inner cavity (12) of the shaft sleeve (1), and the clamping head portion (32) is located between the shaft sleeve (1) and the locking piece (2).
  2. 2. The clamping mechanism according to claim 1, wherein the chuck part (32) is provided with a tightening cavity (321), first linear holes (322) and second linear holes (323) are formed in the inner wall of the chuck part (32) at equal intervals in a staggered manner, and the first linear holes (322) and the second linear holes (323) are all arranged through the tightening cavity (321).
  3. 3. The clamping mechanism of claim 2, wherein one end of the first linear bore (322) begins at an outer end of the collet portion (32) and is unconnected to an inner end of the collet portion (32); One end of the second linear hole (323) starts from the inner end of the chuck part (32) and is not connected with the outer end of the chuck part (32).
  4. 4. A clamping mechanism according to claim 3, wherein the lengths of the first linear hole (322) and the second linear hole (323) are 2/3-4/5 of the axial length of the chuck part (32), and the distance between the adjacent first linear hole (322) and second linear hole (323) is 1-3 mm.
  5. 5. Clamping mechanism according to claim 1, characterized in that the sleeve (3) is a resilient metal sleeve (3) made of spring steel or stainless steel or carbon steel.
  6. 6. Clamping mechanism according to claim 1, characterized in that the connection (31) of the sleeve (3) is screwed with the sleeve (1).
  7. 7. Clamping mechanism according to claim 1, characterized in that the inner wall of the sleeve (1) is provided with an annular stepped groove, the connecting part (31) of the sleeve (3) is embedded in the annular stepped groove, and the sleeve (3) can rotate around the central shaft of the ceramic roller relative to the sleeve (1).
  8. 8. A ceramic roller comprising a ceramic roller body (4) and a clamping structure according to any one of claims 1-7, said clamping structure being fitted over at least one end shaft portion of said ceramic roller body (4).

Description

Clamping structure and ceramic roller with same Technical Field The invention relates to the technical field of ceramic roller shaft end connection, in particular to a clamping structure suitable for a large-size ceramic roller and the ceramic roller with the clamping structure. Background In the field of industrial equipment manufacturing, the ceramic roller is widely applied to process scenes such as high-temperature sintering, glass forming, precise coating and the like as a key transmission part, and the reliability of a shaft end connecting structure directly influences the overall operation efficiency of equipment. The existing ceramic roller shaft end is connected with the ceramic roller shaft end in a mode of adopting tolerance ring connection, the clamping force is small, the clamping force is concentrated in a local contact area, the ceramic roller shaft end is easy to crack, and is easy to loosen especially under large-size load, the existing structure is easy to loosen under the working condition of large torsion, the transmission efficiency is reduced after long-term operation, frequent shutdown maintenance is needed, and stable operation of the large-size ceramic roller is severely limited. Disclosure of Invention In view of the foregoing, the present invention provides a clamping structure and a ceramic roller with the clamping structure, which at least partially solve the problems set forth in the background art. The technical scheme adopted by the invention is as follows: a first aspect of the present application provides a clamping structure for clamping a ceramic roller, comprising: The shaft sleeve is sleeved at the shaft end of the ceramic roller, an external thread is arranged on the outer surface of the shaft sleeve, and a truncated cone-shaped inner cavity is arranged at one end of the shaft sleeve; the locking piece is in threaded connection with the external thread of the shaft sleeve; the sleeve is sleeved on the central shaft of the ceramic roller and comprises a connecting part and a chuck part which are integrally formed, the connecting part is connected with the bottom of the inner cavity of the shaft sleeve, and the chuck part is positioned between the shaft sleeve and the locking piece. In a further embodiment, the chuck part is provided with a tightening cavity, the inner wall of the chuck part is provided with a first linear hole and a second linear hole at equal intervals in a staggered manner, and the first linear hole and the second linear hole are both arranged through the tightening cavity. In a further embodiment, one end of the first linear bore starts from the outer end of the collet and is unconnected to the inner end of the collet, and one end of the second linear bore starts from the inner end of the collet and is unconnected to the outer end of the collet. In a further embodiment, the lengths of the first linear hole and the second linear hole are 2/3-4/5 of the axial length of the chuck part, and the distance between the adjacent first linear hole and second linear hole is 1-3 mm. In a further embodiment, the sleeve is a resilient metal sleeve, and is made of spring steel or stainless steel or carbon steel. In a further embodiment, the connection portion of the sleeve is threadably connected to the sleeve. In a further embodiment, the inner wall of the shaft sleeve is provided with an annular stepped groove, the connecting part of the sleeve is embedded in the annular stepped groove, and the sleeve can rotate around the central shaft of the ceramic roller relative to the shaft sleeve. In a second aspect of the present application, there is provided a ceramic roller comprising a ceramic roller body and a clamping structure, the clamping structure being sleeved on at least one end shaft portion of the ceramic roller body. The beneficial effects obtained by the invention by adopting the structure are as follows: The axial extrusion force generated when the locking piece is screwed into the external thread of the shaft sleeve directly acts on the clamping head to generate controllable compression quantity, and the compression quantity is converted into uniform radial clamping force on the shaft part of the ceramic roller through the elastic rebound characteristic of the sleeve. The clamping structure improves the damping phenomenon of the clamping force in the operation of the large-size ceramic roller, and avoids the problem of connection loosening caused by insufficient clamping force, thereby remarkably improving the operation stability of equipment. Drawings Fig. 1 is a schematic perspective view of a clamping structure according to an embodiment of the present invention; FIG. 2 is a schematic view illustrating a disassembled structure of a clamping structure according to an embodiment of the present invention; FIG. 3 is a schematic view illustrating an internal structure of a sleeve according to an embodiment of the present invention; FIG. 4 is a schematic vi