A super-long-life spool structure

Abstract

This invention provides an ultra-long life spindle structure, comprising a spindle rod disposed within a spindle core tube. An oil shield is installed above the inner ring of a bearing on the spindle rod, with its lower edge positioned in the middle of a guide groove in the spindle core tube. Bearings are mounted along the inner wall of the spindle core tube on a stepped structure. The upper and lower bearings are connected as a single unit by a steel elastic tube, which has helical grooves milled on it. In this ultra-long life spindle structure, the spindle core utilizes a steel elastic tube to connect the upper and lower bearings, with helical grooves milled on the tube to facilitate the rise of lubricating oil to the upper bearing. The inner ring of a coil spring mates with the elastic tube, while the outer ring maintains a small gap with the spindle foot. This not only determines the spindle's center position but also provides lateral and longitudinal support for the lower bearing. The structure automatically adjusts its center position when the spindle rod vibrates, and absorbs vibration through the viscous damping of the multi-layered oil film formed between the coil springs.

Description

Technical Field

[0001] This utility model belongs to the field of textile spindle technology, specifically relating to a spindle structure with an ultra-long lifespan. Background Technology

[0002] The spindle is a core component of textile machinery, and its rotational stability directly affects yarn quality. Traditional spindles are prone to settling under axial loads in textile machinery, and the internal lubricating oil easily leaks out during rotation, leading to accelerated spindle wear and shortened spindle life. Traditional spindles lack an inner ring in the spindle rod bearing; the bearing seat itself is the bearing's inner ring. In cases of spindle rod wear, spindle bearing wear or damage, or lower support wear, the only solution on-site is to replace the spindle; repair is impossible. Utility Model Content

[0003] The main purpose of this utility model is to provide a spindle structure with an ultra-long service life, which reduces the possibility of spindle rod settling and the possibility of lubricating oil leakage. Customers can repair damaged upper and lower bearings themselves, thus reducing production costs.

[0004] To achieve the above objectives, this utility model provides an ultra-long life spindle structure, which includes a spindle rod disposed inside a spindle tube. An oil shield is disposed above the inner ring of a bearing on the spindle rod, and the lower edge of the oil shield is located in the middle of the guide groove of the spindle tube. A bearing is disposed on the stepped structure along the inner wall of the spindle tube. The bearing is connected to the upper and lower bearings into a whole by a steel elastic tube, and a spiral groove is milled on the elastic tube.

[0005] This invention provides an ultra-long-life spindle structure. The spindle core uses a steel elastic tube to connect the upper and lower bearings into a single unit. The elastic tube is milled with spiral grooves to facilitate the rise of lubricating oil to the upper bearing. The inner ring of the coil spring mates with the elastic tube, while the outer ring maintains a small gap with the spindle foot. This not only determines the spindle's center position but also provides lateral and longitudinal support for the lower bearing. It can automatically adjust its center position when the spindle vibrates, and simultaneously absorbs vibration through the viscous damping of the multi-layered oil film formed between the coil springs.

[0006] In one possible implementation, the top of the spindle tube has a first anti-overflow groove on its inner wall, and the top of the first anti-overflow groove is a barbed groove. When the spindle rotates, the lubricating oil is subjected to centrifugal force and is thrown towards the side wall, thereby preventing the lubricating oil from overflowing through the barbed groove.

[0007] In one possible implementation, a second anti-overflow groove is provided on the nail rod, the second anti-overflow groove being disposed on the outer wall of the nail rod and located inside the spindle tube, above the support rod. The second anti-overflow groove and the first groove form an oil barrier zone, further ensuring that the lubricating oil will not overflow or leak through double protection.

[0008] In one possible implementation, the top height of the second spill containment tank is lower than the top height of the first spill containment tank, and the bottom height of the second spill containment tank is higher than the bottom height of the first spill containment tank.

[0009] In one possible implementation, the bottom end of the spindle tube is provided with a perforated chip storage area for storing worn-off chips. A plug screw is located at the bottom of the spindle tube. Metal chips fall into the storage area through the perforated holes, preventing chips from embedding in the ball bearing tracks and causing jamming. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of an ultra-long lifespan spindle structure provided by this utility model;

[0011] Figure 2 This is a schematic diagram of the internal cross-section of an ultra-long lifespan spindle structure provided by this utility model. Detailed Implementation

[0012] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0013] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0014] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0015] See attached diagram. Figure 1 and Figure 2As shown in the figure, the ultra-long life spindle structure includes a spindle rod 1, which is set inside the spindle tube 2. An oil shield is set above the inner ring of the bearing on the spindle rod. The lower edge of the oil shield is located in the middle of the guide groove of the spindle tube. A bearing 3 is set on the stepped structure along the inner wall of the spindle tube. The bearing 3 is connected to the upper and lower bearings into a whole by a steel elastic tube. A spiral groove is milled on the elastic tube.

[0016] This invention provides an ultra-long-life spindle structure. The spindle core uses a steel elastic tube to connect the upper and lower bearings into a single unit. The elastic tube is milled with spiral grooves to facilitate the rise of lubricating oil to the upper bearing. The inner ring of the coil spring mates with the elastic tube, while the outer ring maintains a small gap with the spindle foot. This not only determines the spindle's center position but also provides lateral and longitudinal support for the lower bearing. It can automatically adjust its center position when the spindle vibrates, and simultaneously absorbs vibration through the viscous damping of the multi-layered oil film formed between the coil springs. The stepped structure has a combined angular contact bearing placed along the inner wall of the spindle tube. A guide groove is provided above the bearing. When the spindle rotates at high speed, the lubricating oil can rise appropriately through the shape of the spindle to lubricate the bearing. The rotation of the bearing cuts the lubricating oil and generates oil mist. The oil cover covers the oil mist and throws it into the guide groove of the spindle tube so that it flows back to the bearing. The spindle tube uses a steel elastic tube to connect the upper and lower bearings into a whole. The elastic tube is milled with a spiral groove to facilitate the rise of lubricating oil to the upper bearing. The spindle foot, as another key support component of the spindle, not only plays a supporting role, but also serves as an oil storage device to provide the necessary lubrication for the rotation of the spindle.

[0017] Spindle cores can be divided into two types: separate and connected. In the separate spindle core design, the upper bearing, lower bearing, spindle core, coil spring, and spindle foot are press-fitted together, and assembled with the spindle foot using elastic elements. All of these are installed inside the spindle foot. The outer ring of the coil spring maintains a small gap with the spindle foot, which not only determines the center position of the spindle but also provides lateral and longitudinal support for the lower bearing. The coil spring is made of spring steel sheet and can automatically adjust its center position when the spindle vibrates. At the same time, it absorbs vibration through the viscous damping of the multi-layer oil film formed between the coil springs.

[0018] The interconnected spindle uses a steel elastic tube to connect the upper and lower bearings into a single unit. This elastic tube is milled with spiral grooves to facilitate the rise of lubricating oil to the upper bearing. In addition, the viscous damping of multiple layers of oil film is used to absorb the vibration energy of the spindle, ensuring the smooth operation of the spindle.

[0019] In one possible implementation, the top end of the spindle tube 2 is provided with a first anti-overflow groove 61 on its inner sidewall, and the top end of the first anti-overflow groove 61 is configured as a barbed groove. When the spindle rotates, the lubricating oil is subjected to centrifugal force and will be thrown towards the sidewall, thereby preventing the lubricating oil from overflowing through the barbed groove.

[0020] In one possible implementation, a second anti-overflow groove 62 is provided on the nail rod. The second anti-overflow groove 62 is located on the outer wall of the nail rod, inside the spindle tube 2, and above the support rod 5. The second anti-overflow groove 62 and the first groove form an oil barrier, further ensuring that the lubricating oil will not overflow or leak through double protection.

[0021] In one possible implementation, the top height of the second spill containment tank 62 is lower than the top height of the first spill containment tank 61, and the bottom height of the second spill containment tank 62 is higher than the bottom height of the first spill containment tank 61.

[0022] In one possible implementation, the bottom end of the spindle tube 2 is provided with a perforated chip storage area 7, which is used to store chips that have fallen off due to wear. A plug screw 8 is provided at the bottom of the spindle tube 2. Metal chips fall into the storage area through the perforated holes to prevent chips from getting embedded in the track of the ball bearing 4 and causing jamming.

[0023] It is worth mentioning that those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spindle structure with an ultra-long lifespan, characterized in that, The device includes a spindle rod, which is disposed inside a spindle tube. An oil shield is provided above the inner ring of the bearing on the spindle rod. The lower edge of the oil shield is located in the middle of the guide groove of the spindle tube. A stepped structure is provided at the upper end of the spindle tube. A bearing is provided on the stepped structure along the inner wall of the spindle tube. The bearing is connected to the upper and lower bearings into a whole by a steel elastic tube. A spiral groove is milled on the elastic tube.

2. The ultra-long lifespan spindle structure according to claim 1, characterized in that, The top of the spindle tube has a first oil spill prevention groove on its inner wall, and the top of the first oil spill prevention groove is a barbed groove.

3. The ultra-long lifespan spindle structure according to claim 2, characterized in that, The spindle is provided with a second anti-overflow oil groove, which is located on the outer wall of the spindle and inside the spindle tube. The second anti-overflow oil groove is located above the support rod.

4. The ultra-long lifespan spindle structure according to claim 3, characterized in that, The top height of the second spill containment tank is lower than the top height of the first spill containment tank, and the bottom height of the second spill containment tank is higher than the bottom height of the first spill containment tank.

5. The ultra-long lifespan spindle structure according to claim 4, characterized in that, The bottom end of the spindle tube is provided with a hollowed-out chip storage area, which is used to store the chips that have fallen off due to wear. The bottom of the spindle tube is provided with a plug screw.

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