Winding transmission assembly
By adopting a dual-bearing symmetrical support structure in the winding drive assembly, the problem of spindle shaft runout caused by one end being fixed and the length being too long was solved, thereby improving the stability of winding and the reliability of the equipment, and reducing mechanical wear and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YOUHAO INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing wire drawing and winding device, the spindle shaft is prone to jumping when rotating because it is fixed at one end, too long, and connected to a heavy winding drum. This causes the bearing to be subjected to repeated alternating stress, increasing the risk of breakage and affecting product quality and production efficiency.
The structure employs a dual-bearing symmetrical support structure. The first and second bearings at both ends of the sleeve form a support span, which limits the radial displacement of the long shaft. By rationally designing the ratio of the support span to the shaft diameter, the shaft system stiffness is optimized, ensuring the stability of the long shaft during high-speed rotation.
It effectively suppresses the jumping phenomenon caused by centrifugal force, improves winding accuracy and equipment reliability, and reduces mechanical wear and maintenance costs.
Smart Images
Figure CN224226369U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of winding machine equipment technology, and in particular to a winding drive assembly. Background Technology
[0002] In the field of wire drawing production, wire drawing and winding equipment is a key piece of equipment for achieving efficient winding of drawn monofilaments, and it is widely used in the processing and manufacturing of various materials such as chemical fibers and metal wires.
[0003] In existing technologies, the winding drive assembly of a wire drawing and winding device typically employs a structure where a spindle shaft is connected to a winding drum. Specifically, the centerlines of the spindle shaft and the winding drum are aligned, with one end of the spindle shaft fixedly connected to one end of the winding drum, and the other end connected to the winding device body via a bearing housing, and then driven by a motor via a belt. Driven by the motor, the motor transmits power to the spindle shaft via the belt, thereby rotating the winding drum and achieving the winding of the single filament. However, this traditional winding drive assembly has significant drawbacks. Due to actual production requirements, the spindle shaft is usually quite long, exceeding 3 meters. With such a long shaft, only one end is fixed via a bearing housing, while the other end is connected to the heavy winding drum. When the device is running, under the centrifugal force of rotation, the heavier end of the spindle bearing is prone to vibration. This vibration not only affects the flatness and uniformity of monofilament winding, reducing product quality, but also subjectes the spindle bearing to repeated alternating stresses over long-term operation, greatly increasing the risk of spindle shaft breakage, leading to frequent equipment failures, increased maintenance costs, and seriously affecting production efficiency and corporate economic benefits.
[0004] Therefore, it is urgent to improve and optimize the winding drive components of existing wire drawing and winding devices. Utility Model Content
[0005] The purpose of this application is to provide a winding transmission assembly to solve the problem in the prior art where the spindle shaft is fixed at one end, is too long, and is connected to a heavy winding drum. When rotating, the load-bearing end is prone to jumping, which leads to the spindle shaft being prone to breakage, affecting the winding quality of monofilament and production efficiency.
[0006] The embodiments of this application can be implemented through the following technical solutions:
[0007] A winding drive assembly includes a long shaft and a sleeve coaxially and limitingly connected to the outside of the long shaft, the sleeve being fixedly connected to a frame;
[0008] The two ends of the long shaft extend out of the two end faces of the sleeve, and the two ends of the sleeve are respectively limited by a first bearing and a second bearing. The center distance between the two bearings forms a support span L for the long shaft. The two ends of the long shaft rotate coaxially with respect to the sleeve under the radial support of the first bearing and the second bearing.
[0009] Furthermore, an axial limiting structure is provided at the connection between the long shaft and the sleeve to restrict the relative displacement of the two in the axial direction. The axial limiting structure is a shoulder that cooperates with the bearing retaining ring or a key that cooperates with the limiting groove. The first bearing and the second bearing are limited to their relative displacement in the axial direction by the bearing end caps at both ends of the sleeve.
[0010] Furthermore, both the first and second bearings are self-aligning ball bearings.
[0011] Furthermore, the inner rings of both the first and second bearings are interference-fitted with the journal of the long shaft, and the outer rings are transition-fitted with the sleeve.
[0012] Furthermore, the relationship between the support span L of the sleeve and the outer diameter D of the major axis is: 2D ≤ L ≤ 5D.
[0013] Furthermore, the support span L of the sleeve accounts for half of the axial length of the major axis.
[0014] Furthermore, the outer circumferential wall of the sleeve is symmetrically provided with multiple upright ears with bending angles on both sides along the axial direction. Each upright ear is evenly distributed along the circumference of the sleeve, and the bottom surface of its bending is located on the same horizontal plane. The upright ears are detachably fixedly connected to the frame.
[0015] Furthermore, the long shaft is made of alloy steel.
[0016] Furthermore, one end of the long shaft is fixedly connected to a pulley, and a motor is fixedly connected to the frame. The motor is connected to the pulley via a transmission belt.
[0017] Furthermore, the other end of the long shaft is fixedly connected to the take-up spool and passes through the limiting end faces at both ends of the take-up spool.
[0018] The winding drive assembly provided by the embodiments of this application has at least the following beneficial effects:
[0019] Compared to existing technologies where the spindle shaft is fixed at only one end by a bearing housing and a heavy winding drum is suspended at the other end, leading to vibration due to centrifugal force during operation, this winding transmission assembly adopts a dual-bearing symmetrical support structure. The first and second bearings at both ends of the sleeve form a support span L, providing bidirectional radial constraint on the long shaft. This design evenly distributes the load of the winding drum to the two bearings, avoiding eccentricity and vibration caused by unilateral force on the shaft. Simultaneously, the optimized ratio of the support span L to the outer diameter of the long shaft improves shaft stiffness, significantly suppressing vibration caused by centrifugal force. This allows the long shaft to maintain stable coaxial rotation even at high speeds, effectively improving winding accuracy and equipment reliability, and reducing mechanical wear and maintenance costs caused by vibration. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of a winding drive assembly according to the present application in a practical application scenario;
[0021] Figure 2 This is a three-dimensional structural schematic diagram of a winding transmission assembly according to this application;
[0022] Figure 3 This is a three-dimensional structural diagram of a winding drive assembly and a winding drum according to this application;
[0023] Figure 4 This is a side sectional view of the winding drive assembly and the winding drum in this application.
[0024] Numbers in the diagram
[0025] 1-Retracting spool; 11-Limiting end face; 2-Long shaft; 3-Sleeve; 31-Vertical lug; 4-First bearing; 5-Second bearing; 6-Pulley; 7-Bearing end cover; 8-Motor; 9-Transmission belt; S-Frame. Detailed Implementation
[0026] The present application will now be further described based on preferred embodiments and with reference to the accompanying drawings.
[0027] Furthermore, for ease of understanding, various components on the drawings have been enlarged or reduced, but this is not intended to limit the scope of protection of this application.
[0028] Singular forms of words also include plural meanings, and vice versa.
[0029] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, in the description of this application, in order to distinguish different units, the terms "first," "second," etc. are used in this specification, but these are not limited by the manufacturing order, nor should they be construed as indicating or implying relative importance. Their names may differ in the detailed description and claims of this application.
[0030] The vocabulary used in this specification is for illustrative purposes and is not intended to limit the scope of this application. It should also be noted that, unless otherwise expressly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection via an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of these terms in this application.
[0031] like Figures 1 to 4 As shown, a winding transmission assembly includes a long shaft 2 and a sleeve 3 coaxially and limitingly connected to the outside of the long shaft 2. The sleeve 3 is fixedly connected to the frame S. Both ends of the long shaft 2 extend out of the two end faces of the sleeve 3, with one end connected to a pulley 6 and the other end connected to a winding drum 1. The sleeve 3 forms a support span between the two ends of the long shaft 2. By reasonably designing the support span, the stability of the shaft when rotating or under stress is ensured.
[0032] Furthermore, the two ends of the sleeve 3 are respectively limited by a first bearing 4 and a second bearing 5. The inner and outer rings of the two bearings cooperate with and limit the long shaft 2 and the sleeve 3 respectively. The two ends of the long shaft 2 rotate coaxially under the radial support of the first bearing 4 and the second bearing 5, which makes the long shaft 2 more stable during the rotation and winding process, and effectively reduces the amplitude of the jump at the weighing end where the winding spool 1 is located.
[0033] In some preferred embodiments, such as Figure 2 , Figure 3 As shown, the outer circumferential wall of the sleeve 3 is symmetrically provided with multiple upright ears 31 with bending angles on both sides along the axial direction. Each upright ear 31 is evenly distributed along the circumference of the sleeve 3, and its bending bottom surface is located on the same horizontal plane. The bending bottom surface of the upright ear 31 is provided with a mounting through hole. The mounting through hole is connected to the frame S in a detachable fixed connection by bolts, nuts or screws, so as to realize the rigid assembly of the sleeve 3 and the frame S and increase the convenience of disassembly.
[0034] In some preferred embodiments, an axial limiting structure is provided at the connection between the long shaft 2 and the sleeve 3 to restrict the relative displacement of the two in the axial direction. The axial limiting structure ensures that the two maintain a relatively fixed positional relationship in the axial direction through a specific matching method (such as the matching of the shaft shoulder and the bearing retaining ring, the matching of the key and the limiting groove, etc.) so as to ensure the stability and reliability of the winding structure during operation.
[0035] In some preferred embodiments, such as Figure 4As shown, the first bearing 4 and the second bearing 5 are axially displaced relative to each other by the bearing end caps 7 at both ends of the sleeve 3. The bearing end caps 7 and the sleeve 3 are sealed by O-rings. A double-lip skeleton oil seal is provided between the long shaft 2 and the shaft hole of the bearing end cap 7. The combination of O-rings (between the bearing end cap and the sleeve) and double-lip skeleton oil seal (between the long shaft and the shaft hole of the bearing end cap) can achieve dual protection against oil leakage and dust through the synergy of static and dynamic sealing, thereby extending the bearing life and reducing maintenance costs.
[0036] In some preferred embodiments, the first bearing 4 and the second bearing 5 are self-aligning ball bearings. The inner rings of both the first bearing 4 and the second bearing 5 are interference-fitted with the journal of the long shaft 2, and the outer rings are transition-fitted with the sleeve 3. The unique double-row spherical raceway structure of the self-aligning ball bearing can automatically adjust the relative position of the inner and outer rings. When the long shaft 2 is misaligned at a certain angle due to misalignment of the bearing housing holes during installation or machining errors, the self-aligning ball bearing can automatically compensate for this deviation, keeping the two ends of the long shaft 2 concentric to a certain extent, ensuring that the equipment can operate smoothly even under poor installation conditions.
[0037] In some preferred embodiments, the support span L of the sleeve 3 is the axial distance between the centers of the first bearing 4 and the second bearing 5. The relationship between the support span L of the sleeve 3 and the outer diameter D of the long shaft 2 is: 2D ≤ L ≤ 5D. Preferably, the support span L of the sleeve 3 accounts for about half of the axial length of the long shaft 2, and the axial length of the long shaft 2 is about 3 meters. By reasonably matching the shaft diameter and the support spacing, the bending deformation of the long shaft during rotation can be effectively controlled, the overall rigidity of the shaft system can be improved, and the radial load and bending moment borne by the bearings at both ends can be evenly distributed. This avoids shaft vibration caused by excessive span or bearing overload caused by insufficient span. At the same time, it makes the force state at both ends of the long shaft tend to be symmetrical, further enhancing the stability and reliability of the transmission system, and taking into account both the rigidity and load balance of the mechanical transmission.
[0038] In some preferred embodiments, the long shaft 2 is made of alloy steel, preferably 40Cr alloy steel, to ensure surface hardness while maintaining high internal toughness, thus preventing brittle fracture of the shaft due to impact loads.
[0039] In some preferred embodiments, one end of the long shaft 2 is fixedly connected to the pulley 6, and a motor 8 is fixedly connected to the frame S. The motor 8 is connected to the pulley 6 via a transmission belt 9 and is used to drive the winding transmission assembly to rotate and wind up.
[0040] In some preferred embodiments, such as Figure 3As shown, the other end of the long shaft 2 is fixedly connected to the take-up drum 1 and passes through the limiting end faces 11 at both ends of the take-up drum 1. The two limiting end faces form a twisting winding space for limiting the twisted yarn. The long shaft extends to pass through the take-up drum 1, which can reduce the uneven centrifugal force during rotation, suppress vibration, and improve system stability.
[0041] The specific embodiments of this application have been described in detail above. For those skilled in the art, several improvements and modifications can be made to this application without departing from the principle of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. A winding drive assembly, characterized in that, include: A long shaft (2) and a sleeve (3) coaxially limited and connected to the outside of the long shaft (2), the sleeve (3) being fixedly connected to the frame (S); The two ends of the long shaft (2) extend out of the two end faces of the sleeve (3). The two ends of the sleeve (3) are respectively limited by a first bearing (4) and a second bearing (5). The center distance between the two bearings forms a support span L for the long shaft (2). The two ends of the long shaft (2) rotate coaxially with the sleeve (3) under the radial support of the first bearing (4) and the second bearing (5).
2. The winding drive assembly according to claim 1, characterized in that: An axial limiting structure is provided at the connection between the long shaft (2) and the sleeve (3) to restrict the relative displacement of the two in the axial direction. The axial limiting structure is a shoulder that cooperates with the bearing retaining ring or a key that cooperates with the limiting groove. The first bearing (4) and the second bearing (5) are limited to relative displacement in the axial direction by the bearing end caps (7) at both ends of the sleeve (3).
3. The winding drive assembly according to claim 1, characterized in that: The first bearing (4) and the second bearing (5) are self-aligning ball bearings.
4. The winding drive assembly according to claim 1, characterized in that: The inner rings of the first bearing (4) and the second bearing (5) are both interference-fitted with the journal of the long shaft (2), and the outer rings are both transition-fitted with the sleeve (3).
5. The winding drive assembly according to claim 1, characterized in that: The relationship between the support span L of the sleeve (3) and the outer diameter D of the long axis (2) is: 2D ≤ L ≤ 5D.
6. The winding drive assembly according to claim 1, characterized in that: The support span L of the sleeve (3) is half the axial length of the long axis (2).
7. The winding drive assembly according to claim 1, characterized in that: The sleeve (3) has multiple upright ears (31) with bending angles symmetrically arranged on both sides of the outer circumferential wall along the axial direction. Each upright ear (31) is evenly distributed along the circumference of the sleeve (3), and the bottom surface of its bending is located on the same horizontal plane. The upright ears (31) are detachably fixedly connected to the frame (S).
8. The winding drive assembly according to claim 1, characterized in that: The long shaft (2) is made of alloy steel.
9. The winding drive assembly according to claim 1, characterized in that: One end of the long shaft (2) is fixedly connected to the pulley (6), and a motor (8) is fixedly connected to the frame (S). The motor (8) is connected to the pulley (6) via a transmission belt (9).
10. The winding drive assembly according to claim 1, characterized in that: The other end of the long shaft (2) is fixedly connected to the take-up drum (1) and passes through the limiting end faces (11) at both ends of the take-up drum (1).