Description:Specification
Drafting roller bearing device for textile machinery
technology
This Invention relates to the field of textile machinery technology, in particular to a drafting roller bearing device of textile machinery.
Background technology
Textile machinery such as drafting machines, combing machines, coiling machines, drawing frames, roughing machines, ring spinning machines, and jet spinning machines have functions such as opening, parallel spinning, drafting, blending, forming, and spinning of coarse yarns. Each textile machinery has a stretching device in which stretching operations are carried out.
The upper stretching roller in this stretching device plays an important role in fiber elongation. The surface of the upper stretching roller is coated with polymer or synthetic rubber rollers, and the softness of the rubber allows the fibers to better grip and control adjacent fibers, especially on floating fibers. When the upper roller runs continuously, the synthetic rubber roller in the upper draft roller will lose its hardness characteristics, thus affecting the draft quality. During long-term use, the surface of the roller will gradually become smooth, which increases the probability of material slippage and other stretching faults, leading to the winding of the roller.
In the existing stretching device, the bearing components are directly installed on the stretching roller shaft. Due to the stretching roller shaft extending throughout the entire length range of the stretching roller, the assembly time of the bearing components is longer. Moreover, in the existing structure, the bearing components may also come into contact with dust and fiber accumulation during normal operation or grinding. In addition, the existing upper roller bearings have a steel core, where the liner and ball bearings are connected to the journal of the steel core according to a certain tolerance. The steel core is tapered at the end of the bearing, and a small gap is formed between the bearing and the journal of the steel core, causing faster bearing wear and frequent bearing replacement. Due to the need for special tools for bearing replacement, it is also difficult to handle at the customer's place. In addition, if the bearing malfunctions, the entire traction roller assembly needs to be replaced, and the cost will also be higher.
Under normal operation, in order to maintain the surface hardness of the roller, it is necessary to regularly grind it. Roller grinding is essential for improving hardness and surface roughness. Due to regular grinding and improper installation and disassembly of the upper roller shaft, the ball bearings of the bearings are damaged, which can affect the performance of the bearings and overall result in excessive heat generation and depletion of lubricating oil. This also affects the service life of the bearings, shafts, and the durability of the upper draft roller.
Urgent need for a stretching roller bearing device to overcome the shortcomings of existing structures
Invention Content
To solve the above technical problems, the present Invention provides a stretching roller bearing device for textile machinery, which reliably connects the bearing shaft and the core shaft of the roller component through a fastening device.
The technical solution of this Invention is:
Including a roller component and bearing components set at both ends of the roller component axial direction, the roller component comprises a core shaft, which is sheathed with a rubber roller; The bearing component comprises a bearing shaft, which is fitted with a bearing, and the bearing shaft and the core shaft are reliably connected through a fastening device.
Its further technical solution is
The bearing shaft has two axial ends, where one end of the bearing shaft is assembled against the core shaft, and the bearing sleeve is located at the other end of the bearing shaft.
Its further technical solution is:
The fastening device comprises a chuck mechanism, and an axial groove is provided on the center of the end face where the core shaft is docked with the bearing shaft. The bearing shaft enters the axial groove of the core shaft through the chuck mechanism.
Its further technical solution is
The fastening device further includes a locking nut, which fastens the clamp mechanism and threads it onto the core shaft.
Its further technical solution is:
The end face of the bearing shaft far from the core shaft is equipped with a grinding center hole.
Its further technical solution is
The roller component and the bearing component are fixed on the grinding shaft at the center of the grinding machine through the grinding center hole.
Its further technical solution is:
The bearing assembly also includes a dust cover, which is set on the side of the bearing near the roller assembly.
Its further technical solution is:
The bearing shaft is equipped with an outer cover at one end near the grinding center hole.
The beneficial technical effect of this Invention is: a split type roller component and a bearing component, the bearing shaft of the bearing component and the core shaft of the roller component are reliably connected through a clamp mechanism and a locking nut device, making the disassembly and assembly of the roller component and bearing component very convenient; Moreover, during roller grinding, the roller components and bearing components are fixed on the grinding shaft in the center of the grinding machine through the grinding center hole, which does not require disassembly and is very convenient; The service life of bearings and rollers is also longer.
Illustration
Figure 1 is a schematic diagram of the overall position of the roller components and bearing components of the present Invention;
Figure 2 is a schematic diagram of the explosion of the fastening component of this Invention;
Figure 3 is a schematic diagram of the assembly and rotation of the fastening components of the present Invention;
Figure 4 is a schematic diagram of the position of the bearing component and the grinding shaft of the present Invention; Among them: 1. Roller components; 2. Mandrel; 3. Leather roller; 4. Bearing components; 5. Bearings; 6. Bearing shaft; 7. Dust cover; 8. Outer cover; 9. Clamp mechanism; 10. Lock the nut.
Embodiment
In order to have a clearer understanding of the technical means of the present Invention and to implement it according to the content of the manual, the specific implementation methods of the present Invention will be further described in detail below, combined with the drawings and embodiments. The following embodiments are used to illustrate the present Invention, but not to limit the scope of the present Invention.
As shown in Figures 1 to 4, the stretching roller bearing device of textile machinery includes a roller component 1 and bearing components 4 set at both axial ends of the roller component 1. The roller component 1 includes a core shaft 2, which is wrapped with a rubber roller 3. The rubber roller 3 can be an elastic outer body made of a composite or polymer and axially wrapped with a rubber roller 2. The bearing component 4 includes a bearing shaft 6, and the bearing shaft 6 is sleeved with a bearing 5. The bearing shaft 6 and the core shaft 2 are reliably connected through a clamping mechanism 9 and a locking nut 10 device.
Bearing shaft 6 has two axial ends, one end of which is assembled against the core shaft 2, and the other end face of bearing shaft 6 has a grinding center hole at the center. During the grinding process, the grinding center hole is used to fix roller assembly 1 and bearing assembly 4 on the grinding shaft 11 at the center of the grinding machine.
The bearing assembly 4 further includes a dust cover 7, which is located on the side of the bearing 5 near the roller assembly 1. The dust cover 7 can prevent dust/accumulation from entering the interior of the bearing 5, providing a relatively sealed environment for the bearing 5; It can also provide additional protection for the heat dissipation of the upper roller during operation.
In addition, to cover the bearing component 4, an outer cover 8 is provided at one end of the bearing shaft 6 near the grinding center hole.
As shown in Figure 2, there is a fastening device located between the roller component 1 and the bearing component 4, which includes a clamp mechanism 9 and a locking nut 10. That is, the bearing shaft 6 is assembled into the core shaft 2 through the clamp mechanism 9 and locked by the locking nut 10. Specifically, the outer surface of the joint between the core shaft 2 and the locking nut 10 is provided with radial threads that are matched with the locking nut 10; There is an axial groove at the center of the end face where the core shaft 2 and the bearing shaft 6 are connected. When the bearing shaft 6 enters the core shaft 2 through the clamp mechanism 9, the clamp mechanism 9 expands, and then the bearing shaft 6 is fixedly connected to the core shaft 2 through the thread tightening effect of the locking nut 10. Through this institution, both roller assembly 1 and bearing assembly 4 can be installed or removed simultaneously at any time.
Under normal operating conditions, roller assembly 1 will be placed in the traction device of the textile machinery, as shown in Figure 4. When roller grinding is required, bearing shaft 6 fixes roller assembly 1 in the center 11 of the grinding machine through the grinding center hole, that is, upper roller assembly 1 and bearing assembly 4 are fixed together in the grinding machine for grinding. After completing the grinding operation to improve the roughness and hardness of the roller surface, cover the bearing assembly 4 with the outer cover 8 and place it in the stretching device of the textile machinery.
The above is only a preferred embodiment of the present Invention and is not intended to limit the present Invention. It should be pointed out that for ordinary technical personnel in this field, several improvements and variations can be made without departing from the technical principles of the present Invention. These improvements and variations should also be considered as the scope of protection of the present Invention.
, Claims:We claim

1、A stretching roller bearing device for textile machinery, comprising a roller assembly (1) and bearing assemblies (4) arranged at the axial ends of the roller assembly (1), wherein the roller assembly (1) comprises a core shaft (2), and the core shaft (2) is sheathed with a connecting roller (3); The feature is that the bearing assembly (4) comprises a bearing shaft (6), which is fitted with a bearing (5), and the bearing shaft (6) and the core shaft (2) are reliably connected through a fastening device.
2、The stretching roller bearing device of the textile machinery according to claim 1, characterized in that: the bearing shaft (6) has two axial ends, wherein one end of the bearing shaft (6) is assembled against the core shaft (2), and the bearing (5) is sleeved on the other end of the bearing shaft (6).
3、The stretching roller bearing device of the textile machinery according to claim 1, characterized in that: the fastening device comprises a clamp mechanism (9), an axial groove is provided on the center of the end face where the core shaft (2) is docked with the bearing shaft (6), and the bearing shaft (6) enters the axial groove of the core shaft (2) through the clamp mechanism (9).
4、 The stretching roller bearing device of the textile machinery according to claim 1, characterized in that: the fastening device further comprises a locking nut (10), which fastens the chuck mechanism (9) and thread it onto the core shaft (2).
5、The drafting roller bearing device of the textile machinery as claimed in claim 1, characterized in that: a grinding center hole is provided on one end face of the bearing shaft (6) away from the core shaft (2).
6、The stretching roller bearing device of the textile machinery according to claim 5, characterized in that the roller assembly (1) and the bearing assembly (4) are fixed on the grinding shaft (11) at the center of the grinding machine through the grinding center hole.
7、The stretching roller bearing device of the textile machinery according to claim 1, characterized in that: the bearing assembly (4) further includes a dust cover (7), which is set on one side of the bearing (5) near the roller assembly (1).
8、
The drafting roller bearing device of the textile machinery according to claim 5, characterized in that: the bearing shaft (6) is equipped with an outer cover (8) at one end near the grinding center hole