Spinning rotor driving mechanism

Abstract

The utility model provides a spinning rotor driving mechanism which comprises a supporting seat, two sets of double-disc supporting indirect bearings, a spinning rotor, a driving motor and a pressurizing rubber ring, the double-disc supporting indirect bearings are arranged in the supporting seat side by side, the driving motor is arranged above the two sets of double-disc supporting indirect bearings, and the pressurizing rubber ring is arranged on the outer side of the driving motor in a sleeving mode. The pressurizing rubber ring and the two sets of double-disc supporting indirect bearings jointly form a triangular area, a rotating shaft of the spinning cup is clamped in the triangular area, the rotating shaft of the spinning cup is clamped through the pressurizing rubber ring and the two sets of double-disc supporting indirect bearings, the driving motor rotates to drive the pressurizing rubber ring to rotate, and the spinning cup is driven to rotate through friction force between the pressurizing rubber ring and the rotating shaft. Each spinning rotor is matched with one driving motor for driving, the spinning rotors are mutually independent, and the rotating speed of the spinning rotors can be controlled more simply and accurately; the same machine can be used for producing various products by using various spinning cups, can adapt to various application scenes, and improves the equipment utilization rate.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning equipment, in particular to a spinning cup driving mechanism applied to a rotor spinning machine. Background Art

[0002] The rotor drive mechanism is a mechanism on the rotor spinning machine that provides driving force to the rotor. There are currently two commonly used rotor drive methods, one is tangential belt drive, and the rotor bearings use rolling bearings; the other is direct motor drive, and the rotor bearings use magnetic bearings. Among them, the tangential belt drive method has large wear and power consumption, the rotors are interconnected, and the rotor speed control accuracy is not high. The motor direct drive method uses a magnetic levitation motor, which is costly and difficult to maintain later. Therefore, it is urgent to provide a new type of rotor drive mechanism. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a spinning cup driving mechanism.

[0004] The technical solution to be adopted by the utility model to solve its technical problems is: a spinning cup driving mechanism, comprising a support seat, a double-disc support indirect bearing, a spinning cup, a driving motor and a pressurized rubber ring, wherein the double-disc support indirect bearings are in two groups, which are arranged side by side inside the support seat, the driving motor is arranged above the two groups of double-disc support indirect bearings, and the pressurized rubber ring is sleeved on the outside of the driving motor, the pressurized rubber ring and the two groups of double-disc support indirect bearings jointly form a triangular area, the rotating shaft of the spinning cup is clamped in the triangular area, the rotating shaft of the spinning cup is clamped by the pressurized rubber ring and the two groups of double-disc support indirect bearings, the driving motor rotates, driving the pressurized rubber ring to rotate, and the friction between the pressurized rubber ring and the rotating shaft drives the spinning cup to rotate, thereby realizing the driving of the spinning cup, each spinning cup is equipped with a driving motor, and the spinning cups are independent of each other.

[0005] The pressure of the pressurized rubber ring on the spinning rotor needs to be limited within a reasonable range. When the spinning rotor starts, the static friction force between the pressurized rubber ring and the rotating shaft is converted into dynamic friction force. If the pressure is too small, the friction force generated is very small, and it cannot reach the force required in the acceleration stage of the spinning rotor start-up, and cannot drive the spinning rotor; if the pressure is too large, although the starting of the spinning rotor can be guaranteed, the load acting on the double-disc support indirect bearing is too large, which will cause the bearing temperature to increase and burn the bearing. Therefore, in order to adjust the pressure acting on the spinning rotor shaft, a pressure regulating component is also included. The pressure regulating component is arranged at the rear of the support seat, and one end is connected to the support seat, and the other end is connected to the drive motor. The pressure regulating component acts on the drive motor, so that the pressure generated by the pressurized rubber ring on the rotating shaft of the spinning rotor is adjustable, and the pressure can be adjusted within a certain range. The friction force between the pressurized rubber ring and the spinning rotor shaft is adjusted by adjusting the pressure.

[0006] There are many ways to implement the pressure regulating assembly. In this embodiment, a pressure regulating assembly is designed using the principle of a lever. Specifically, the pressure regulating assembly includes a fixed seat, a support plate, a pin shaft, an adjusting screw and a spring, wherein the fixed seat is connected to the support seat, the support plate includes a lever portion, a pin shaft hole is provided in the middle of the lever portion, the pin shaft is arranged in the pin shaft hole, the support plate is rotatably connected to the fixed seat through the pin shaft, the end of the pin shaft is limited by a retaining spring, the support plate and the fixed seat are connected together, and the fixed seat and the support plate can rotate relative to each other with the pin shaft as the rotating axis; an adapter portion is vertically provided at one end of the lever portion, an adapter plate is provided at the rear of the drive motor, the adapter plate is fixedly connected to the adapter portion by bolts, a threaded hole is provided at the other end of the lever portion, the adjusting screw is threadedly connected in the threaded hole, the lower end of the adjusting screw is connected to the upper end of the spring, the lower end of the spring is fixed in the cylindrical hole of the support seat, and the adjusting screw can rotate relative to the spring.

[0007] By utilizing the lever principle, the spring force can be converted into the pressure of the pressurized rubber ring on the spinning rotor shaft through the support plate. By adjusting the adjusting screw, the spring compression amount can be increased or decreased, the elastic force can be changed, and the pressure of the pressurized rubber ring on the spinning rotor can be adjusted.

[0008] Furthermore, the ratio of the outer diameter of the pressurized rubber ring to the outer diameter of the rotor shaft is at least 10: 1. The outer diameter of the pressurized rubber ring is much larger than the outer diameter of the rotor shaft, and the speed of the drive motor is only one tenth of the speed of the rotor, which greatly reduces the performance requirements of the drive motor.

[0009] When adjusting the pressure adjustment assembly through the adjusting screw, the pressure rubber ring will be displaced in the horizontal direction. However, due to the amplifying effect of the lever and the outer diameter ratio of the pressure rubber ring and the spinning rotor shaft, the horizontal displacement is very small and can be ignored, and does not affect the contact between the pressure rubber ring and the spinning rotor shaft and the application of pressure.

[0010] Furthermore, the double-disc supporting indirect bearing comprises a connecting shaft, a positioning wheel and a positioning rubber ring. There are two positioning wheels which are rotatably connected to the two ends of the connecting shaft respectively, and a positioning rubber ring is sleeved on the outer wall of the positioning wheel.

[0011] Preferably, the positioning rubber ring is made of rubber or polyurethane material.

[0012] Furthermore, it also includes a bearing fixing structure, which includes a positioning groove, an elastic tongue, a locking screw, and an annular groove provided on the bottom beam of the support seat, wherein the connecting shaft is embedded in the positioning groove, one end of the elastic tongue is fixed to the bottom beam by the locking screw, and the other end is embedded in the annular groove of the connecting shaft, generating a downward pressing force on the connecting shaft. The elastic tongue embedded in the annular groove can limit the axial movement of the connecting shaft and play the role of axial positioning. The radial movement of the connecting shaft can be limited by the positioning groove, thereby achieving radial positioning.

[0013] Furthermore, a plurality of cutting grooves are provided in the positioning groove to reduce friction.

[0014] Preferably, the pressure rubber ring is made of rubber or polyurethane material and is fixed on the driving motor by interference fit and gluing.

[0015] The beneficial effects of the utility model are:

[0016] (1) A speed-increasing transmission structure is used between the driving motor and the spinning rotor to reduce the performance requirements of the motor.

[0017] (2) Similar to the magnetic levitation motor drive, one motor corresponds to one spinning rotor, and the spinning rotors are relatively independent, which makes it easier and more accurate to control the spinning rotor speed.

[0018] (3) The working principle of this mechanism is similar to that of the tangential belt drive, but it uses a completely different structure. The tangential belt is replaced by a polyurethane rubber ring, and the pressure regulating device replaces the pressure wheel. Polyurethane has the advantages of long service life, low noise, and high transmission efficiency. Compared with the traditional structure, this structure can use polyurethane material transmission, so it also has better performance.

[0019] (4) The spinning rotor speed is controlled individually. The same machine can use multiple spinning rotors and produce multiple products at the same time. It can adapt to various application scenarios and improve equipment utilization.

[0020] (5) Compared with tangential belt drive, this mechanism does not require additional braking devices, which reduces failure points, improves equipment operation stability, simplifies the structure, and allows for a wide range of transmission materials to be selected, making it easier to upgrade to better transmission materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural schematic diagram of the spinning cup driving mechanism of the utility model.

[0023] Figure 2 It is a structural schematic diagram of the spinning cup driving mechanism of the utility model.

[0024] Figure 3It is a schematic diagram of the cross-sectional structure of the spinning cup drive mechanism along the spinning cup axis.

[0025] Figure 4 It is a schematic diagram of the connection between the double-disc support indirect bearing and the support seat.

[0026] Figure 5 It is a structural schematic diagram of the support plate.

[0027] Figure 6 It is a structural diagram of the bearing fixing structure.

[0028] Figure 7 It is a schematic diagram of the structure of a double-disc supported indirect bearing.

[0029] In the figure: 1. Spinning cup, 1.1. Cup body, 1.2. Rotating shaft, 2. Support seat, 2.1. Bottom beam, 2.2. Positioning groove, 2.3. Cutting groove, 3. Double disc support indirect bearing, 3.1. Positioning wheel, 3.2. Positioning rubber ring, 3.3. Connecting shaft, 3.4. Annular groove, 4. Driving motor, 4.1. Adapter plate, 5. Pressurized rubber ring, 6. Support plate, 6.1. Lever part, 6.2. Adapter part, 6.3. Pin hole, 6.4. Threaded hole, 6.5. Fixing hole, 7. Spring, 8. Adjusting screw, 9. Fixing seat, 10. Pin, 11. Retaining spring, 12. Limiting block, 13. Elastic tongue, 14. Locking screw. DETAILED DESCRIPTION

[0030] The present invention is now described in further detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the subject matter for which protection is sought is limited only by the attached claims and their equivalents.

[0031] like Figure 1-Figure 3As shown, a spinning cup driving mechanism of the utility model comprises a support seat 2, a double-disc support indirect bearing 3, a spinning cup 1, a driving motor 4 and a pressurized rubber ring 5, wherein the double-disc support indirect bearing 3 is divided into two groups, which are arranged side by side inside the support seat 2, the driving motor 4 is arranged above the two groups of double-disc support indirect bearings 3, and the pressurized rubber ring 5 is sleeved on the outside of the driving motor 4, the pressurized rubber ring 5 and the two groups of double-disc support indirect bearings 3 jointly form a triangular area, the rotating shaft 1.2 of the spinning cup 1 is clamped in the triangular area, and the rotating shaft 1.2 of the spinning cup 1 is clamped by the pressurized rubber ring 5 and the two groups of double-disc support indirect bearings 3, the front end of the rotating shaft 1.2 of the spinning cup 1 extends to the front side of the double-disc support indirect bearing 3, and the cup body 1.1 of the spinning cup 1 is provided at the end, and the rear end of the rotating shaft 1.2 is connected to the support seat 2 through a limit block 12, and the rotating shaft 1.2 can rotate around the axis relative to the limit block 12. The driving motor 4 rotates, driving the pressurized rubber ring 5 to rotate, and the friction between the pressurized rubber ring 5 and the rotating shaft 1.2 drives the spinning cup 1 to rotate, thereby driving the spinning cup 1. Each spinning cup 1 is equipped with a driving motor 4, and the spinning cups 1 are independent of each other. The ratio of the outer diameter of the pressurized rubber ring 5 to the outer diameter of the rotating shaft 1.2 of the spinning cup 1 is at least 10:1. The outer diameter of the pressurized rubber ring 5 is much larger than the outer diameter of the spinning cup 1 shaft, and the speed of the driving motor 4 is only one tenth of the speed of the spinning cup 1, which greatly reduces the performance requirements of the driving motor 4.

[0032] like Figure 2 and Figure 5As shown, in order to adjust the size of the pressure acting on the rotating shaft 1.2 of the spinning cup 1, a pressure regulating component is also included. The pressure regulating component is arranged at the rear of the support seat 2, and one end is connected to the support seat 2, and the other end is connected to the driving motor 4. The pressure regulating component acts on the driving motor 4, so that the pressure generated by the pressurized rubber ring 5 on the rotating shaft 1.2 of the spinning cup 1 is adjustable. The pressure can be adjusted within a certain range. There are many ways to implement the pressure regulating component. In this embodiment, a pressure regulating component is designed using the principle of a lever. Specifically, the pressure regulating component includes a fixed seat 9, a support plate 6, a pin 10, an adjusting screw 8 and a spring 7, wherein the fixed seat 9 is connected to the support seat 2, the support plate 6 includes a lever portion 6.1, and a pin hole 6.3 is provided in the middle of the lever portion 6.1. The pin 10 is arranged in the pin hole 6.3. The support plate 6 is rotatably connected to the fixed seat 9 through the pin 10. The end of the pin 10 is limited by a retaining spring 11 to connect the support plate 6 and the fixed seat 9 together. The fixed seat 9 and the support plate 6 can be The pin shaft 10 rotates relative to the rotating shaft 1.2; an adapter part 6.2 is vertically provided at one end of the lever part 6.1, an adapter plate 4.1 is provided at the rear of the driving motor 4, and corresponding fixing holes 6.5 are provided on the adapter plate 4.1 and the adapter part 6.2, and the adapter plate 4.1 is fixedly connected to the adapter part 6.2 by bolts arranged in the fixing holes 6.5; a threaded hole 6.4 is provided at the other end of the lever part 6.1, and the adjusting screw 8 is threadedly connected in the threaded hole 6.4, and the lower end of the adjusting screw 8 is connected to the upper end of the spring 7, and the lower end of the spring 7 is fixed in the cylindrical hole of the support seat 2, and the adjusting screw 8 can rotate relative to the spring 7.

[0033] By utilizing the lever principle, the elastic force of the spring 7 can be converted into the pressure of the pressurized rubber ring 5 on the rotating shaft 1.2 of the spinning cup 1 through the support plate 6. By adjusting the adjusting screw 8, the compression amount of the spring 7 can be increased or decreased, the elastic force can be changed, and the pressure of the pressurized rubber ring 5 on the spinning cup 1 can be adjusted.

[0034] like Figure 4 and Figure 7 As shown, the double-disc supporting indirect bearing 3 comprises a connecting shaft 3.3, a positioning wheel 3.1 and a positioning rubber ring 3.2. The positioning wheels 3.1 are two and are rotatably connected to the two ends of the connecting shaft 3.3 respectively. The outer wall of the positioning wheel 3.1 is sleeved with a positioning rubber ring 3.2. The positioning rubber ring 3.2 is made of rubber or polyurethane material.

[0035] like Figure 6As shown, it also includes a bearing fixing structure, which includes a positioning groove 2.2, an elastic tongue 13, a locking screw 14, and an annular groove 3.4 arranged on the bottom beam 2.1 of the support seat 2. The connecting shaft 3.3 is embedded in the positioning groove 2.2, one end of the elastic tongue 13 is fixed to the bottom beam 2.1 by the locking screw 14, and the other end is embedded in the annular groove 3.4 of the connecting shaft 3.3, which produces a downward pressing force on the connecting shaft 3.3. The elastic tongue 13 is embedded in the annular groove 3.4 to limit the axial movement of the connecting shaft 3.3 and play a role in axial positioning. The radial movement of the connecting shaft 3.3 can be limited by the positioning groove 2.2, thereby achieving radial positioning. A plurality of cutting grooves 2.3 are also provided in the positioning groove 2.2 to reduce friction. In this embodiment, preferably, the pressurized rubber ring 5 is made of polyurethane material, and the positioning rubber ring 3.2 is made of rubber.

[0036] Working principle:

[0037] The polyurethane pressurized rubber ring 5 is glued to the drive motor 4 by interference fit, and the drive motor 4 is powered on to drive the polyurethane pressurized rubber ring 5 to rotate. The elastic force of the spring 7 is converted into the pressure of the pressurized rubber ring 5 on the rotating shaft 1.2 of the spinning rotor 1 through a lever. By turning the adjusting screw 8, the elastic force of the spring 7 is adjusted to control the pressure of the pressurized rubber ring 5 on the rotating shaft 1.2 of the spinning rotor 1 within a reasonable range. The pressure and the gravity of the drive motor 4 generate friction between the pressurized rubber ring 5 and the rotating shaft 1.2 of the spinning rotor 1. Under the action of the friction, the pressurized rubber ring 5 rotates to drive the spinning rotor 1 to rotate.

[0038] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A spinning cup driving mechanism, characterized in that: It includes a support seat, a double-disc support indirect bearing, a spinning cup, a driving motor and a pressurized rubber ring, wherein the double-disc support indirect bearings are divided into two groups and arranged side by side inside the support seat, the driving motor is arranged above the two groups of double-disc support indirect bearings, and the pressurized rubber ring is sleeved on the outside of the driving motor, the pressurized rubber ring and the two groups of double-disc support indirect bearings jointly form a triangular area, the rotating shaft of the spinning cup is clamped in the triangular area, the rotating shaft of the spinning cup is clamped by the pressurized rubber ring and the two groups of double-disc support indirect bearings, the driving motor rotates, driving the pressurized rubber ring to rotate, and the friction between the pressurized rubber ring and the rotating shaft drives the spinning cup to rotate, each spinning cup is equipped with a driving motor, and the spinning cups are independent of each other.

2. The spinning cup drive mechanism according to claim 1, characterized in that: It also includes a pressure regulating component, which is arranged at the rear of the support seat, and one end of the pressure regulating component is connected to the support seat, and the other end is connected to the drive motor. The pressure regulating component acts on the drive motor to make the pressure generated by the pressurized rubber ring on the rotating shaft of the spinning cup adjustable.

3. The spinning cup driving mechanism according to claim 2, characterized in that: The pressure regulating assembly comprises a fixed seat, a support plate, a pin shaft, an adjusting screw and a spring, wherein the fixed seat is connected to the support seat, the support plate comprises a lever part, a pin shaft hole is provided in the middle part of the lever part, the pin shaft is arranged in the pin shaft hole, the support plate is rotatably connected to the fixed seat through the pin shaft, the end of the pin shaft is limited by a retaining spring, and the support plate and the fixed seat are connected together; a transfer part is vertically provided at one end of the lever part, the drive motor is fixedly connected to the transfer part, a threaded hole is provided at the other end of the lever part, the adjusting screw is threadedly connected in the threaded hole, the lower end of the adjusting screw is connected to the upper end of the spring, the lower end of the spring is fixed in the cylindrical hole of the support seat, and the adjusting screw can rotate relative to the spring.

4. The spinning cup driving mechanism according to claim 1, characterized in that: The ratio of the outer diameter of the pressurized rubber ring to the outer diameter of the spinning rotor shaft is at least 10:

1.

5. The spinning cup driving mechanism according to claim 1, characterized in that: The double-disc supporting indirect bearing comprises a connecting shaft, a positioning wheel and a positioning rubber ring. There are two positioning wheels which are rotatably connected to the two ends of the connecting shaft respectively. The outer wall of the positioning wheel is sleeved with a positioning rubber ring.

6. The spinning cup driving mechanism according to claim 5, characterized in that: The positioning rubber ring is made of rubber or polyurethane material.

7. The spinning cup driving mechanism according to claim 5, characterized in that: It also includes a bearing fixing structure, which includes a positioning groove, an elastic tongue, a locking screw and an annular groove arranged on the bottom beam of the support seat. The connecting shaft is embedded in the positioning groove, one end of the elastic tongue is fixed to the bottom beam by the locking screw, and the other end is embedded in the annular groove of the connecting shaft, thereby generating a downward clamping force on the connecting shaft.

8. The spinning cup driving mechanism according to claim 7, characterized in that: A plurality of cutting grooves are also provided in the positioning groove to reduce friction.

9. The spinning cup driving mechanism according to claim 1, characterized in that: The pressurized rubber ring is made of rubber or polyurethane material.

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