Energy-saving rolling disc assembly for high-speed spinning frame

Abstract

The utility model relates to an energy-saving rolling disc assembly for a high-speed spinning frame, which comprises a rolling disc made of engineering plastics, and is characterized in that the rolling disc comprises an outer end part matched with a transmission spindle tape, a middle shaft part with a main shaft mounting hole, and a center plate integrated with the outer end part and the middle shaft part, an annular groove is formed in the side, deviating from the center plate, of the middle shaft part in the main shaft installation hole, two nuts are connected to the position, at the annular groove, of the middle shaft part in an embedded mode in the circumferential direction, an elastic shaft sleeve with an opening is installed in the annular groove, the elastic shaft sleeve is made of metal, and screws connected to the nuts in a screwed mode abut against the elastic shaft sleeve. And the elastic shaft sleeve is connected with the main shaft and the rolling disc is connected to the main shaft. The device is low in cost and high in strength, does not damage the surface of the main shaft, and is convenient to disassemble or adjust the position.

Description

Technical Field

[0001] This utility model relates to an energy-saving roller assembly for high-speed spinning machines, belonging to the field of high-speed spinning machine roller technology. Background Technology

[0002] During spinning, the rollers rotate at high speed to tension the spindle belt, which then drives the spindle to work. In a ring spinning machine, the rollers are mounted on the main shaft. By increasing surface friction, the rollers prevent slippage between the spindle belt and the rollers during power transmission, thus significantly reducing twist unevenness.

[0003] Currently, there are three main types of assembly and fixing structures for the rollers and main shaft on high-speed spinning machines. The first type uses a combination of a metal bushing and a galvanized iron or plastic roller. The inner hole of the roller is conical, and the metal bushing is also conical, with external threads on one side. The metal bushing is placed inside the conical hole of the roller and then installed on the main shaft using a nut screwed onto it. This type of roller, due to the use of a metal bushing, not only has high cost but also increases the overall weight of the roller, resulting in high energy consumption and loud noise during operation.

[0004] Another type uses a combination of a metal bushing and a plastic roller, such as the high-speed spinning machine roller disclosed in CN201010730Y. This roller consists of a metal bushing and a plastic roller joined together. The plastic roller has a round hole, and the center hole of the metal bushing is a straight hole for the main shaft. The metal bushing has a threaded hole with a screw screw screwed inside to support the main shaft. This type of roller also suffers from high cost, heavy overall weight, and high energy consumption during operation. In particular, the screws, once tightened, directly press against the main shaft, easily damaging the main shaft surface. Furthermore, roller disassembly and replacement, as well as adjustments when switching between Z-twist and S-twist in single-tension spinning, are inconvenient.

[0005] Another type uses a combination of a plastic roller and a plastic bushing, such as the all-plastic roller for textile machinery disclosed in CN2187179Y. This roller consists of a cylindrical core hole with three equally radii distributed keys and a locking bushing with a certain taper. The locking bushing has three contraction slots and keyways that match the three equally radii distributed keys on the cylindrical core hole. The keyways are axially threaded to mate the cylindrical core hole with the locking bushing. A plastic locking nut is connected to the locking bushing through the threads. Tightening the nut makes the entire roller tightly connected to the rotating shaft. However, although the all-plastic roller can reduce the overall weight, it also has the problems of low strength and easy damage. Summary of the Invention

[0006] The purpose of this invention is to provide an energy-saving roller assembly for a high-speed spinning machine that is low in cost, high in strength, does not damage the surface of the main shaft, and is easy to disassemble or adjust.

[0007] The technical solution of this utility model to achieve the above-mentioned objectives is as follows: An energy-saving roller assembly for a high-speed spinning machine, comprising a roller made of engineering plastic, characterized in that: the roller includes an outer end portion that matches the drive spindle belt, an intermediate shaft portion having a main shaft mounting hole, and a web plate integral with the outer end portion and the intermediate shaft portion; the intermediate shaft portion has an annular groove in the main shaft mounting hole on the side offset from the web plate; two nuts are circumferentially fitted into the annular groove of the intermediate shaft portion; an open elastic bushing is installed in the annular groove; the elastic bushing is made of metal; screws screwed onto the nuts press against the elastic bushing, so that the elastic bushing is connected to the main shaft and the roller is connected to the main shaft.

[0008] This utility model relates to an energy-saving roller assembly for high-speed spinning machines. An annular groove is provided in the main shaft mounting hole on the side of the roller's central shaft offset from the web. An open elastic bushing is installed in the annular groove, and a nut is fitted into the central shaft. Therefore, when the screw screwed onto the nut presses against the metal elastic bushing, the elastic bushing contracts and connects to the main shaft, fixing the roller to the main shaft. This significantly reduces the roller's weight and energy consumption during operation, and also ensures stability during high-speed operation, further reducing noise. This utility model uses an engineering plastic roller combined with a metal elastic bushing, resulting in high overall strength and extended service life of the roller assembly. The screw presses against the elastic bushing, securing it to the main shaft without damaging the main shaft surface, and facilitates disassembly or repositioning of the roller assembly. Attached Figure Description

[0009] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0010] Figure 1 This is a schematic diagram of the structure of an energy-saving roller assembly for a high-speed spinning machine according to this utility model.

[0011] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of AA.

[0012] Figure 3 yes Figure 2 A magnified structural diagram at point I.

[0013] Figure 4 This is a schematic diagram of the structure of a roller disc according to this utility model.

[0014] Figure 5 This is a schematic diagram of another type of roller in this utility model.

[0015] Figure 6 This is a schematic diagram of the structure of the elastic bushing of this utility model.

[0016] Wherein: 1—roller, 1-1—outer end, 1-11—side rail, 1-2—width plate, 1-3—intermediate shaft, 1-31—main shaft mounting hole, 1-32—first end face, 1-33—annular groove, 1-34—second end face, 2—main shaft, 3—screw, 4—elastic bushing, 4-1—opening, 5—nut, 5-1—groove. Detailed Implementation

[0017] See Figures 1-6 As shown, this utility model discloses an energy-saving roller assembly for a high-speed spinning machine, comprising a roller 1 made of engineering plastic. The roller 1 is integrally injection molded from glass fiber reinforced engineering plastic or glass bead reinforced engineering plastic, giving the roller 1 advantages such as wear resistance, antistatic properties, environmental corrosion resistance, and resistance to chemical stress cracking. See [link to relevant documentation]. Figures 1-5 As shown, the roller disc 1 of this utility model includes an outer end portion 1-1 that mates with the transmission belt, an intermediate shaft portion 1-3 with a main shaft mounting hole 1-31, and a web plate 1-2 integral with the outer end portion 1-1 and the intermediate shaft portion 1-3. The intermediate shaft portion 1-3, on the side offset from the web plate 1-2, has an annular groove 1-33 within the main shaft mounting hole 1-31. The outer end portion 1-1, both end faces, the main shaft mounting hole 1-31, and the annular groove 1-33 of the roller disc 1 can all be machined, giving the roller disc 1 high precision. See Figures 1-5 As shown, in this utility model, two nuts 5 are circumferentially embedded in the intermediate shaft 1-3 at the annular groove 1-33. An elastic bushing 4 with an opening 4-1 is installed in the annular groove 1-33. The elastic bushing 4 is made of metal, giving it a certain degree of hardness and elasticity. The roller assembly has high strength. The screw 3 screwed onto the nut 5 presses against the elastic bushing 4, connecting the elastic bushing 4 to the main shaft 2 and connecting the roller 1 to the main shaft 2. Under the action of the screw 3, the elastic bushing 4 clamps the main shaft 2, restricting the axial and radial degrees of freedom of the roller 1 relative to the main shaft 2. This reduces the overall weight of the roller assembly and lowers energy consumption during operation, thus achieving energy saving. At the same time, the screw 3 is connected to the main shaft 2 through the elastic bushing 4. The screw 3 does not contact the main shaft 2, so it will not damage the surface of the main shaft 2, facilitating the disassembly or position adjustment of the roller assembly.

[0018] As shown in Figures 2-5, the outer circumference of the nut 5 of this invention is provided with at least one groove 5-1 or rib that engages with the intermediate shaft portion 1-3. The nut 5 is made of metal. During injection molding, the nut 5 is reliably embedded in the roller 1. The nut 5 is set in the intermediate shaft portion 1-3, which has radial holes communicating with both ends of the internal threaded hole of the nut 5. The screw 3 is screwed onto the nut 5 and rests on the elastic bushing 4. The included angle β between the central axes of the two nuts of this invention is between 90±10°, see [reference needed]. Figure 1As shown, the included angle β of the central axes of the two nuts 5 in this utility model is 90°. The center line of the opening of the elastic sleeve 4 coincides with the center line of the included angle of the two screws 3. Therefore, the two screws 3 are screwed onto the corresponding nuts 5 and pressed against the elastic sleeve 4 and close to the opening 4-1 side, which quickly narrows the opening 4-1 of the elastic sleeve 4, so that the elastic sleeve 4 is connected and fixed to the main shaft 2.

[0019] See Figure 2 , 3 and Figure 5 As shown, the width of the elastic sleeve 4 of this utility model is smaller than the width of the annular groove 1-33 on the intermediate shaft part 1-3, and the thickness of the elastic sleeve 4 is smaller than the depth of the annular groove 1-33 on the intermediate shaft part 1-3. This makes it convenient to install the elastic sleeve 4 in the annular groove 1-33 of the roller 1. When the spindle mounting hole 1-31 on the intermediate shaft part 1-3 is fitted onto the spindle 2, the annular groove 1-33 axially limits the elastic sleeve 4 so that it will not detach from the intermediate shaft part 1-3. Under the action of the screw 3, the opening 4-1 of the elastic sleeve 4 is reduced, thereby connecting the roller 1 to the spindle 2.

[0020] See Figure 2 , 4 As shown in Figure 5, the web plate 1-2 on the roller 1 of this utility model is perpendicular to the intermediate shaft, and the first end face 1-32 of the intermediate shaft part 1-3 is located inside the plane of the outer end 1-1 on the same side, and the second end face 1-34 of the intermediate shaft part 1-3 extends beyond the plane of the outer end 1-1 on the same side. The center line of the annular groove on the intermediate shaft part 1-3 is located outside the plane of the outer end 1-1 on the same side. While facilitating the disassembly or position adjustment of the roller 1, the roller assembly has good stability during high-speed operation.

[0021] The roller structure of this utility model is shown below. Figure 4 As shown, the outer end 1-1 of the roller 1 has a convex arc surface that matches the transmission belt, which is suitable for a double-disc transmission structure.

[0022] Another structure of the roller of this utility model is shown below. Figure 5 As shown, the outer end 1-1 of the roller 1 has an outwardly convex arc surface that matches the transmission belt, and the two sides of the outwardly convex arc surface are provided with outwardly extending flanges 1-11, which limit the transmission belt by means of the flanges 1-11 on both sides.

[0023] When the roller assembly of this utility model is installed on the main shaft 2, the elastic bushing 4 is first placed in the annular groove 1-33 of the roller 1, and the main shaft mounting holes 1-31 of each roller are fitted onto the main shaft 2. The two adjacent rollers 1 are rotated 90° relative to each other in the radial direction. The screws 3 on each roller 1 are screwed onto the corresponding nuts 5. The screws 3 are all tightened to connect the elastic bushing 4 to the main shaft 2. At this time, the main shaft is balanced by force, so that the roller assembly operates more smoothly and with less noise.

Claims

1. An energy-saving roller assembly for a high-speed spinning machine, comprising a roller (1) made of engineering plastic, characterized in that... The roller (1) includes an outer end (1-1) that matches the drive belt, an intermediate shaft (1-3) with a main shaft mounting hole (1-31), and a web plate (1-2) integral with the outer end (1-1) and the intermediate shaft (1-3). The intermediate shaft (1-3) has an annular groove (1-33) in the main shaft mounting hole (1-31) on the side opposite to the web plate (1-2). Two nuts (5) are circumferentially fitted into the annular groove (1-33) of the intermediate shaft (1-3). An elastic bushing (4) with an opening (4-1) is installed in the annular groove (1-33). The elastic bushing (4) is made of metal. A screw (3) screwed onto the nut (5) presses against the elastic bushing (4), so that the elastic bushing (4) is connected to the main shaft (2) and the roller (1) is connected to the main shaft (2).

2. The energy-saving roller assembly for a high-speed spinning machine according to claim 1, characterized in that: The nut (5) has at least one groove (5-1) or rib that engages with the intermediate shaft (1-3) on its outer periphery. The nut (5) is located inside the intermediate shaft (1-3), and the intermediate shaft (1-3) has radial holes that communicate with both ends of the threaded hole of the nut (5). The included angle β between the central axes of the two nuts is between 90±10°. The center line of the opening of the elastic bushing (4) coincides with the center line of the included angle between the two screws (3).

3. The energy-saving roller assembly for a high-speed spinning machine according to claim 1, characterized in that: The width of the elastic bushing (4) is less than the width of the annular groove (1-33) on the intermediate shaft part (1-3), and the thickness of the elastic bushing (4) is less than the depth of the annular groove (1-33) on the intermediate shaft part (1-3).

4. The energy-saving roller assembly for a high-speed spinning machine according to claim 1, characterized in that: The web plate (1-2) on the roller (1) is perpendicular to the intermediate shaft (1-3), and the first end face (1-32) of the intermediate shaft (1-3) is located inside the plane of the outer end (1-1) on the same side, and the second end face (1-34) of the intermediate shaft (1-3) extends beyond the plane of the outer end (1-1) on the same side. The center line of the annular groove on the intermediate shaft (1-3) is located outside the plane of the outer end (1-1) on the same side.

5. An energy-saving roller assembly for a high-speed spinning machine according to claim 1 or 4, characterized in that: The outer end (1-1) of the roller (1) has an outwardly convex arc surface that matches the transmission belt.

6. An energy-saving roller assembly for a high-speed spinning machine according to claim 1 or 4, characterized in that: The outer end (1-1) of the roller (1) has an outwardly convex arc surface that matches the transmission belt, and the two sides of the outwardly convex arc surface are provided with outwardly extending flanges (1-11).

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