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CN-224226369-U - Rolling transmission assembly

CN224226369UCN 224226369 UCN224226369 UCN 224226369UCN-224226369-U

Abstract

The application relates to the technical field of winding machine equipment, in particular to a winding transmission assembly, which comprises a long shaft and a sleeve which is coaxially and limitedly connected to the outside of the long shaft, wherein the sleeve is fixedly connected with a frame, two ends of the long shaft respectively extend out of two end faces of the sleeve, a first bearing and a second bearing are respectively limited at two ends of the sleeve, the center distance between the two bearings forms a supporting span L of the long shaft, and the two ends of the long shaft are coaxially and rotatably moved relative to the sleeve under the radial support of the first bearing and the second bearing. The rolling transmission assembly adopts double-bearing symmetrical support, forms an effective support span through bearings at two ends of the sleeve, uniformly disperses load, improves rigidity of a shafting, remarkably inhibits running runout, improves rolling precision and equipment reliability, and reduces maintenance cost.

Inventors

  • WANG BAOTAO
  • ZHU JISEN

Assignees

  • 山东友皓智能装备有限公司

Dates

Publication Date
20260512
Application Date
20250623

Claims (10)

  1. 1. A wind-up transmission assembly, comprising: the long shaft (2) and the sleeve (3) are coaxially and limitedly connected to the outside of the long shaft (2), and the sleeve (3) is fixedly connected with the frame (S); The two ends of the long shaft (2) extend out of the two end surfaces of the sleeve (3) respectively, a first bearing (4) and a second bearing (5) are limited at the two ends of the sleeve (3) respectively, the center-to-center distance between the two bearings forms a supporting span L for the long shaft (2), and the two ends of the long shaft (2) are supported by the first bearing (4) and the second bearing (5) in a radial direction and move in a coaxial rotary mode relative to the sleeve (3).
  2. 2. The wrap-around transmission assembly of claim 1, wherein: the axial limiting structure for limiting the relative displacement in the axial direction is arranged at the joint of the long shaft (2) and the sleeve (3), the axial limiting structure is formed by matching a shaft shoulder with a bearing retainer ring or matching a key with a limiting groove, and the first bearing (4) and the second bearing (5) are limited by bearing end covers (7) at two ends of the sleeve (3) to be relatively displaced in the axial direction.
  3. 3. The wrap-around transmission assembly of claim 1, wherein: the first bearing (4) and the second bearing (5) are aligning ball bearings.
  4. 4. The wrap-around transmission assembly of claim 1, wherein: the inner rings of the first bearing (4) and the second bearing (5) are in interference fit with the shaft neck of the long shaft (2), and the outer rings are in transition fit with the sleeve (3).
  5. 5. The wrap-around transmission assembly of claim 1, wherein: The relation between the supporting span L of the sleeve (3) and the outer diameter D of the long shaft (2) is that L is more than or equal to 2D and less than or equal to 5D.
  6. 6. The wrap-around transmission assembly of claim 1, wherein: The supporting span L of the sleeve (3) occupies one half of the axial length of the long shaft (2).
  7. 7. The wrap-around transmission assembly of claim 1, wherein: The outer circumferential wall of the sleeve (3) is symmetrically provided with a plurality of vertical lugs (31) with bending angles along the axial two sides, the vertical lugs (31) are uniformly distributed along the circumferential direction of the sleeve (3), the bent bottom surfaces of the vertical lugs are positioned on the same horizontal plane, and the vertical lugs (31) are detachably and fixedly connected with the frame (S).
  8. 8. The wrap-around transmission assembly of claim 1, wherein: the long shaft (2) is made of alloy steel.
  9. 9. The wrap-around transmission assembly of claim 1, wherein: one end of the long shaft (2) is fixedly connected with the belt wheel (6), a motor (8) is fixedly connected to the frame (S), and the motor (8) is in transmission connection with the belt wheel (6) through a transmission belt (9).
  10. 10. The wrap-around transmission assembly of claim 1, wherein: the other end of the long shaft (2) is fixedly connected with the winding reel (1) and penetrates through limit end faces (11) at two ends of the winding reel (1).

Description

Rolling transmission assembly Technical Field The application relates to the technical field of winding machine equipment, in particular to a winding transmission assembly. Background In the wire drawing production field, the wire drawing coiling mechanism is a key device for realizing the efficient coiling of drawn monofilaments, and is widely applied to the processing and manufacturing of various materials such as chemical fibers, metal wires and the like. In the prior art, a winding transmission assembly of the wire drawing winding device generally adopts a structure form that a spindle shaft is connected with a winding reel, specifically, the spindle shaft is positioned on the same straight line with the center line of the winding reel, one end of the spindle shaft is fixedly connected with one end of the winding reel, and the other end of the spindle shaft is connected with a winding device body through a bearing seat and is in transmission connection with a motor by virtue of a belt. Under the drive of the motor, the motor transmits power to the spindle shaft through the belt, so that the winding reel is driven to rotate, and the winding operation of the monofilaments is realized. However, such conventional wrap-around drive assemblies have significant drawbacks. Spindle shaft lengths are typically long, up to about 3 meters and more, due to practical production requirements. In the case of such a long shaft, only one end of the spindle shaft is fixed by the bearing block, and the other end is connected to a winding drum having a large weight. When the device is operated, the bearing end of the spindle shaft is very easy to generate jumping phenomenon under the action of rotating centrifugal force. The jump not only can influence the flatness and uniformity of the winding of the monofilaments, reduce the product quality, but also can lead the spindle shaft to bear repeated alternating stress after long-term operation, greatly increase the risk of spindle shaft breakage, cause frequent equipment failure, increase the maintenance cost and seriously influence the production efficiency and the economic benefits of enterprises. Therefore, there is a need for improvements and optimizations to the winding drive assemblies of existing wire drawing winding devices. Disclosure of utility model The application aims to provide a winding transmission assembly, which solves the problems that in the prior art, a spindle shaft is easy to break due to the fact that one end of the spindle shaft is fixed, the length is too long and the spindle shaft is connected with a heavy winding reel, and the bearing end is easy to jump during rotation, so that the winding quality and the production efficiency of monofilaments are affected. The embodiment of the application can be realized by the following technical scheme: The winding transmission assembly comprises a long shaft and a sleeve which is coaxially and limitedly connected to the outside of the long shaft, and the sleeve is fixedly connected with a frame; The two ends of the long shaft extend out of the two end surfaces of the sleeve respectively, a first bearing and a second bearing are limited at the two ends of the sleeve respectively, the center distance between the two bearings forms a supporting span L for the long shaft, and the two ends of the long shaft are in coaxial rotary motion relative to the sleeve under the radial support of the first bearing and the second bearing. Further, the connection part of the long shaft and the sleeve is provided with an axial limiting structure for limiting relative displacement in the axial direction, the axial limiting structure is formed by matching a shaft shoulder with a bearing retainer ring or matching a key with a limiting groove, and the first bearing and the second bearing limit relative displacement in the axial direction through bearing end covers at two ends of the sleeve. Further, the first bearing and the second bearing are self-aligning ball bearings. Further, the inner rings of the first bearing and the second bearing are in interference fit with the shaft neck of the long shaft, and the outer rings are in transition fit with the sleeve. Further, the relation between the supporting span L of the sleeve and the outer diameter D of the long shaft is that L is more than or equal to 2D and less than or equal to 5D. Further, the supporting span L of the sleeve occupies one half of the axial length of the long shaft. Further, a plurality of vertical lugs with bending angles are symmetrically arranged on the outer circumferential wall of the sleeve along the two axial sides, the vertical lugs are uniformly distributed along the circumferential direction of the sleeve, the bent bottom surfaces of the vertical lugs are positioned on the same horizontal plane, and the vertical lugs are detachably and fixedly connected with the frame. Further, the long shaft is made of alloy steel. Further, one end of the long shaft is fix