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CN-224227325-U - False twister spindle and false twister unit

CN224227325UCN 224227325 UCN224227325 UCN 224227325UCN-224227325-U

Abstract

The utility model relates to a false twister spindle and a false twister unit. The false twister spindle comprises a spindle body, an outer cylinder, a bearing, a plurality of balls, a gasket and an L-shaped damping ring. The outer cylinder is coaxially sleeved on the outer periphery side of the shaft body; the bearing is radially arranged between the shaft body and the outer cylinder; the plurality of balls are radially arranged between the shaft body and the outer cylinder, and are axially arranged on one side of the bearing; the L-shaped damping ring comprises an axial extension part and a radial extension part, wherein the axial extension part is arranged between the bearing and the outer cylinder in the radial direction, and the radial extension part is arranged between the bearing and the washer in the axial direction. The false twister spindle simplifies the design, makes the assembly process easier and reduces the manufacturing cost.

Inventors

  • DUAN YAOKAI
  • Matthias Royce
  • Wuwei Hong Xin'er
  • HAN HUIMIN
  • CHEN XINPING

Assignees

  • 舍弗勒技术股份两合公司

Dates

Publication Date
20260512
Application Date
20250424

Claims (10)

  1. 1. A spindle shaft of a false twister, characterized by comprising the following steps: A shaft body (1), An outer tube (7) coaxially fitted over the outer peripheral side of the shaft body (1); a bearing (6) provided between the shaft body (1) and the outer tube (7) in the radial direction; A plurality of balls (8) that are provided between the shaft body (1) and the outer tube (7) in the radial direction and that are provided on one side of the bearing (6) in the axial direction; a washer (3) radially fitted between the shaft body (1) and the outer cylinder (7) and axially provided on the side of the bearing (6) facing away from the balls (8), and -An L-shaped damping ring (5) comprising an axial extension (51) and a radial extension (52), wherein the axial extension (51) is arranged radially between the bearing (6) and the outer cylinder (7), and the radial extension (52) is arranged axially between the bearing (6) and the washer (3).
  2. 2. A false twister spindle according to claim 1, characterized in that an O-ring (41) is provided between the washer (3) and the radial extension (52).
  3. 3. A false twister spindle according to claim 2, characterized in that the washer (3) is provided with a receiving groove (31) corresponding to the O-ring (41) on the side axially facing the radial extension (52), the O-ring (41) being axially partially disposed in the receiving groove (31).
  4. 4. A false twister spindle according to claim 1, characterized in that a belleville spring (42) is arranged between the washer (3) and the radial extension (52).
  5. 5. A false twister spindle according to claim 4, characterized in that at least two of said belleville springs (42) are provided, adjacent two of said belleville springs (42) being oppositely disposed in the axial direction.
  6. 6. A false twister spindle according to claim 1, characterized in that a first shaft raceway (11) receiving the plurality of balls (8) is provided at a position corresponding to the plurality of balls (8) on the outer peripheral side of the shaft (1), and an outer cylinder raceway (71) receiving the plurality of balls (8) is provided at a position corresponding to the plurality of balls (8) on the inner peripheral side of the outer cylinder (7) so that the plurality of balls (8) are radially supported between the shaft (1) and the outer cylinder (7).
  7. 7. A false twister spindle according to claim 6, characterized in that in the axial direction the section of the outer cylinder (7) on the side of the bearing (6) facing away from the washer (3) has a narrowing section (72) extending towards the radially inner side, the outer cylinder raceway (71) being arranged on the inner circumferential side of the narrowing section (72).
  8. 8. A false twister spindle according to claim 1, characterized in that the outer diameter of the portion of the axial extension (51) axially directed towards the plurality of balls (8) is gradually reduced in size forming a damping ring chamfer (511).
  9. 9. The false twister spindle of claim 8, wherein said bearing (6) comprises a bearing roller (61) and a bearing outer ring (62), an outer diameter dimension of a portion of said bearing outer ring (62) in a direction axially toward said plurality of balls (8) is gradually reduced to form an outer ring chamfer (621), wherein said damper ring chamfer (511) is correspondingly formed on an outer peripheral side of said outer ring chamfer (621).
  10. 10. A false twister unit comprising at least one false twister spindle (100) of any one of claims 1 to 9.

Description

False twister spindle and false twister unit Technical Field The utility model relates to the technical field of textile machinery. In particular, the utility model relates to a false twister spindle and a false twister unit. Background In textile machines, texturing machines are used for synthetic fiber texturing processes. The texturing machine comprises a plurality of groups of false twister units. In the related art, there are three false twister spindles in each false twister unit. The false twister spindle is rotated at the same speed by a pulley mounted at one axial end. The friction disc is mounted on the false twister spindle. The false twister spindle rotates at a high speed during operation, and in order to reduce vibration during operation, a damping element is required to be used in the false twister spindle. The assembling process of the false twister spindle in the related art is very complex and the manufacturing cost is high. Moreover, axial play of the bearing can lead to misalignment and vibration of the bearing during operation. Accordingly, there is a need for a false twister spindle and false twister unit that is easy to assemble, relatively low cost, and capable of meeting damping vibration attenuation requirements. Disclosure of utility model In order to solve the technical problems, the utility model provides a false twister spindle and a false twister unit. In a first aspect, embodiments of the present utility model provide a false twister spindle comprising a shaft, an outer barrel, a bearing, a plurality of balls, a washer, and an L-shaped damping ring. The outer cylinder is coaxially sleeved on the outer periphery side of the shaft body; the bearing is radially arranged between the shaft body and the outer cylinder; the plurality of balls are radially arranged between the shaft body and the outer cylinder, and are axially arranged on one side of the bearing; the L-shaped damping ring comprises an axial extension part and a radial extension part, wherein the axial extension part is arranged between the bearing and the outer cylinder in the radial direction, and the radial extension part is arranged between the bearing and the washer in the axial direction. According to some alternative embodiments, an O-ring is disposed between the washer and the radially extending portion. According to some alternative embodiments, the washer is provided with a receiving groove corresponding to the O-ring on a side axially facing the radial extension, the O-ring axial portion being provided in the receiving groove. According to some alternative embodiments, a belleville spring is disposed between the washer and the radially extending portion. According to some alternative embodiments, at least two of the belleville springs are provided, and two adjacent belleville springs are oppositely arranged in the axial direction. According to some alternative embodiments, the outer circumferential side of the shaft is provided with a first shaft body raceway for receiving the plurality of balls at positions corresponding to the plurality of balls, and the inner circumferential side of the outer cylinder is provided with an outer cylinder raceway for receiving the plurality of balls at positions corresponding to the plurality of balls, so that the plurality of balls are radially supported between the shaft and the outer cylinder. According to some alternative embodiments, a section of the outer cylinder on a side of the bearing facing away from the washer has a narrowed section extending toward the radially inner side in the axial direction, the outer cylinder raceway being provided on the inner circumferential side of the narrowed section. According to some alternative embodiments, the axial extension tapers in outside diameter dimension in a portion axially toward the plurality of balls, forming a damping ring chamfer. According to some alternative embodiments, the bearing comprises a bearing roller and a bearing outer ring, wherein the outer diameter of the part of the bearing outer ring facing the plurality of balls in the axial direction is gradually reduced to form an outer ring chamfer, and the damping ring chamfer is correspondingly formed on the outer peripheral side of the outer ring chamfer. In a second aspect, embodiments of the present utility model provide a false twister unit comprising at least one false twister spindle as described in any of the above embodiments. With the false twister spindle of the above embodiment, first, one of the supporting members may be a conventional bearing, thereby simplifying the design of the false twister spindle, making the assembly process easier, and reducing the manufacturing cost. In addition, the other bearing forms the raceway directly on the outer peripheral side of the shaft body and the inner peripheral side of the outer cylinder, and the balls are disposed therein to be directly radially supported between the shaft body and the outer cylinder witho