A self-priming high-speed rotary cup servo motor using an air bearing

Abstract

The present invention provides a self-priming high-speed rotor servo motor using an air bearing, which relates to the servo motor of a high-speed rotor spinning machine. It includes a high-speed servo motor, and also includes a sensor module, a rotor component and a control module. The high-speed servo motor includes a machine base, and a front end cover and a rear end cover are respectively installed at the front and rear ends of the machine base. The high-speed servo motor further includes a stator and a rotor. The stator is located inside the machine base, and the rotor is located in the middle of the stator. The rotor is coaxially connected to the main shaft and rotates synchronously. Air bearings are installed at both ends of the rotor. The air bearing adopts air floating technology. The sensor module is located inside the high-speed servo motor, and the control module is located at the outer end of the rear end cover. The present invention drives the rotor component in a direct drive manner and adopts an air bearing, which improves the transmission efficiency, increases the spinning speed, and at the same time prolongs the service life of the equipment.

Description

Technical Field

[0001] The present invention relates to a servo motor for a high-speed rotor spinning machine, and particularly to a self-priming high-speed rotor servo motor using an air bearing. Background Art

[0002] Rotor spinning is also known as air-jet spinning or open-end spinning. Among various new spinning methods, rotor spinning technology is the most mature and widely used spinning method. In the processing of cotton fibers, it can spin combed cotton yarn, yarn for denim, low-twist rotor yarn, waste yarn, etc. In the processing of non-cotton fibers, it can spin wool and blended yarns, rotor yarns from spun silk waste, etc.

[0003] In the spinning industry, a rotor spinning machine is a common spinning device, which is mainly used for spinning materials such as synthetic fibers. Traditional rotor spinning machines usually adopt mechanical transmission, but this method has many problems, such as low transmission efficiency, high noise, and high maintenance costs. In recent years, servo motors have been widely used in the spinning field, which can improve spinning efficiency and reduce noise, but there is still room for improvement in the existing technology. Summary of the Invention

[0004] The purpose of the present invention is to improve the problems existing in the prior art, and to provide a self-priming high-speed rotor servo motor using an air bearing.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A self-priming high-speed rotor servo motor using an air bearing includes a high-speed servo motor, a sensor module, a rotor component, and a control module. The high-speed servo motor includes a machine base, and a front end cover and a rear end cover are respectively installed at the front and rear ends of the machine base. The high-speed servo motor further includes a stator and a rotor. The stator is located inside the machine base, and the rotor is located in the middle of the stator. The rotor is coaxially connected with the main shaft and rotates synchronously. Air bearings are installed at both ends of the rotor. The air bearings adopt air-floating technology, which can reduce the friction coefficient of the main shaft during rotation. The sensor module is located inside the high-speed servo motor and is used to monitor the parameters in the high-speed servo motor and transmit them to the control module. The control module is located at the outer end of the rear end cover and is used to monitor and control the entire spinning process;

[0007] The rotor cup component is located at the front end of the front end cover and is coaxially connected to the main shaft. The rotor cup component is directly driven by a high-speed servo motor through the main shaft. The rotor cup component includes a cup body formed by connecting two hollow truncated cones and a cylindrical cup handle. The cup handle abuts against the front end of the front end cover and is sleeved on the first end of the main shaft. A coagulation groove is provided at the junction of the two cones inside the cup body. The rotor cup component adopts a self-priming design and is used to accommodate the fiber material generated during the spinning process and transport it to the spinning part.

[0008] Preferably, the high-speed servo motor includes a stator and a rotor. Both the stator and the rotor are installed inside the machine base. The rotor is installed inside the stator. The rotor is fixedly connected to the main shaft. The front end cover and the rear end cover are respectively installed at the front and rear of the machine base. The rear cover is installed at the rear end of the rear end cover. The front end of the main shaft passes through the middle of the front end cover and is fixedly connected to the rotor cup component. The rear end of the main shaft passes through the middle of the rear end cover and is connected to the heat dissipation module. The heat dissipation module is located inside the rear cover.

[0009] Preferably, the stator includes a stator core and an insulating winding. The stator core is fixedly connected to the inner wall of the machine base. The stator core is a ring structure and is composed of silicon steel bodies. The insulating winding is installed on the ring of the stator core. The insulating winding includes a plurality of coils. The insulating winding passes through the inside of the stator core. The two ends of the insulating winding are respectively sealed at both ends of the stator core by sealing rings.

[0010] Preferably, the rotor is located inside the stator. The rotor includes a rotor core and rotor magnets. The rotor core is coaxially connected to the main shaft and rotates synchronously. An installation groove is provided on the outer surface of the rotor core. The rotor magnets are installed in the installation groove. The rotor magnets are made of permanent magnet steel materials. There is a gap between the rotor magnets and the annular inner wall of the stator core.

[0011] Preferably, paired air bearings are installed at both ends of the rotor. The air bearings adopt air bearing technology and use gas as a lubricant. The air bearings at both ends of the rotor are respectively located in the bearing seats of the front end cover and the rear end cover.

[0012] Preferably, sensor modules are installed between the air bearings and the front end cover and between the air bearings and the rear end cover. The sensor modules are located inside the high-speed servo motor and are sleeved on the outer periphery of the main shaft. The sensor modules rotate coaxially with the main shaft. The sensor modules are in contact with the air bearings. The sensor modules include speed sensors, pressure sensors, etc.

[0013] Preferably, front covers and rear covers are respectively installed at the front and rear ends of the machine base. A shaft hole for the main shaft to pass through is provided in the middle of the front cover and the rear cover. The end faces of the bearing seats of the front cover and the rear cover respectively abut against both ends of the stator core. A rear cover is installed at the rear end of the rear cover. The front end of the rear cover abuts against the rear end of the machine base. The inner wall of the rear cover is connected to the outer edge of the rear cover near the opening. The front cover and the rear cover are both connected to the machine base by screws, and the rear cover is connected to the rear cover by screws.

[0014] Preferably, the control module is located inside the rear cover and sleeved on the outer periphery of the main shaft. A gasket is provided between the control module and the rear cover, and a heat dissipation module is provided between the control module and the inner wall of the rear end of the rear cover.

[0015] The beneficial effects of the present invention are as follows: The present invention uses a high-speed servo motor as the driving device, which can provide sufficient power for the device; the main shaft of the high-speed servo motor is directly connected to the rotor cup component, and the rotor cup component is driven to work in a direct drive manner, simplifying the transmission system, improving the transmission efficiency, reducing the noise and failure rate; the bearing part of the high-speed servo motor adopts an air-floating bearing, and the air-floating technology is used, with gas as the lubricant, which can effectively reduce the friction coefficient when the main shaft rotates, reduce the wear of the motor, and extend the service life of the motor; the rotor cup component is connected to the high-speed servo motor and is used to accommodate the fiber material generated during the spinning process. The rotor cup component adopts a self-priming design. The high-speed rotation of the rotor cup component generates suction, making the single fibers condense in the condensation groove of the spinning cup and aggregating into a circumferential spinning fiber ring, which can effectively collect the fibers and transport them to the spinning part, improving the spinning speed; the control system is connected to the high-speed servo motor, the air-floating bearing and the rotor cup component, and is used to monitor and control the entire spinning process; at the same time, the control system can automatically adjust parameters such as the rotation speed of the high-speed servo motor and the air pressure of the air-floating bearing according to the actual production requirements to optimize the spinning process and ensure the quality; the sensor module is located inside the high-speed servo motor and is in contact with the air-floating bearing, and can real-time monitor relevant parameters such as the rotation speed of the high-speed servo motor and the air pressure of the air-floating bearing, and transmit the data to the control system to achieve precise control and fault warning, improving the intelligence level of the equipment and facilitating timely maintenance. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the internal structure of an embodiment of the present invention;

[0017] Reference numerals in the drawings: 1 - machine base; 2 - stator core; 3 - insulating winding; 4 - rotor core; 5 - rotor magnet; 6 - main shaft; 7 - air-floating bearing; 8 - sensor module; 9 - front cover; 10 - rotor cup component; 11 - rear cover; 12 - rear cover; 13 - control module; 14 - heat dissipation module; 15 - gasket. Detailed Embodiments

[0018] To further understand the purpose, structure, features and functions of the present invention, the following is a detailed description in conjunction with embodiments.

[0019] A self-priming high-speed rotor cup servo motor using an air bearing, comprising a high-speed servo motor, a sensor module 8, a rotor cup component 10 and a control module 13. The high-speed servo motor adopts an inner rotor motor mode and includes a machine base 1. A main shaft 6 is installed inside the machine base 1. A front end cover 9 and a rear end cover 11 are respectively installed at the front and rear ends of the machine base 1. The rotor cup component 10 is located at the front end of the high-speed servo motor and contacts the outer end of the front end cover 9. The rotor cup component 10 is fixedly connected to the main shaft 6. The high-speed servo motor directly drives the rotor cup component 10 to rotate through the main shaft 6. The rotor cup component 10 adopts a self-priming design and is used to accommodate the fiber material generated during the spinning process. The high-speed servo motor includes a stator and a rotor, which are used to convert mechanical energy and electrical energy. The stator is located inside the machine base 1 and contacts the inner wall of the machine base 1. The rotor is located in the middle of the stator. The rotor is coaxially connected and rotates synchronously with the main shaft 6. The stator and the rotor respectively include an insulating winding 3 and a rotor magnet 5, which are used to provide a magnetic field. Air bearings 7 are installed at both ends of the rotor. The air bearings 7 adopt air bearing technology and are used to reduce the friction coefficient during operation. The sensor module 8 is located inside the high-speed servo motor and is used to monitor the parameters in the high-speed servo motor and transmit them to the control module 13. The control module 13 is located at the outer end of the rear end cover 11 and is used to monitor and control the entire spinning process.

[0020] The high-speed servo motor adopts an inner rotor motor mode and includes a stator and a rotor. Both the stator and the rotor are installed inside the machine base 1. The machine base 1 is used to support and fix the stator. The rotor is installed inside the stator. The rotor is fixedly connected to the main shaft 6. The front end cover 9 and the rear end cover 11 are respectively installed at the front and rear of the machine base 1. A rear cover 12 is installed at the rear end of the rear end cover 11. The front end of the main shaft 6 passes through the middle of the front end cover 9 and is fixedly connected to the rotor cup component 10. The rear end of the main shaft 6 passes through the middle of the rear end cover 11 and is connected to the heat dissipation module 14. The heat dissipation module 14 is located inside the rear cover 12.

[0021] The stator includes a stator core 2 and an insulating winding 3, which are used to generate an induced electromotive force. The stator core 2 is fixedly connected to the inner wall of the machine base 1. The stator core 2 is of a ring structure and is composed of silicon steel bodies. The insulating winding 3 is installed on the ring. The insulating winding 3 includes a plurality of coils. The insulating winding 3 passes through the inside of the stator core 2. Both ends of the insulating winding 3 are sealed at both ends of the stator core 2 by sealing rings.

[0022] The rotor is located inside the stator and is used to generate a magnetic field. The rotor includes a rotor core 4 and rotor magnets 5. The rotor core 4 is coaxially connected to the main shaft 6 and rotates synchronously. The outer surface of the rotor core 4 is provided with mounting grooves, and the rotor magnets 5 are installed in the mounting grooves. The rotor magnets 5 are made of permanent magnet materials, and there is a gap between the rotor magnets 5 and the annular inner wall of the stator core 2.

[0023] Pairs of air bearings 7 are installed at both ends of the rotor to support and guide the rotation of the main shaft 6. The air bearings 7 adopt air bearing technology and use gas as a lubricant, which can reduce the friction coefficient of the main shaft 6 during rotation and reduce the wear of the high-speed servo motor. The air bearings 7 at both ends of the rotor are respectively located in the bearing seats of the front end cover 9 and the rear end cover 11.

[0024] Sensor modules 8 are installed between the air bearings 7 and the front end cover 9 and between the air bearings 7 and the rear end cover 11. The sensor modules 8 are located inside the high-speed servo motor and sleeved on the outer circumference of the main shaft 6. The sensor modules 8 rotate coaxially with the main shaft 6 and are in contact with the air bearings 7. The sensor modules 8 include speed sensors, pressure sensors, etc., and are used to monitor relevant parameters such as the rotation speed of the high-speed servo motor and the air pressure of the air bearings in real time.

[0025] The front end cover 9 and the rear end cover 11 are respectively installed at the front and rear ends of the machine base 1. The middle parts of the front end cover 9 and the rear end cover 11 are provided with shaft holes for the main shaft 6 to pass through. The end faces of the bearing seats of the front end cover 9 and the rear end cover 11 are respectively in contact with the two ends of the stator core 2. The rear end of the rear end cover 11 is installed with a rear cover 12, and the front end of the rear cover 12 is in contact with the rear end of the machine base 1. The inner wall of the rear cover 12 is connected to the outer edge of the rear end cover 11 near the opening. The front end cover 9 and the rear end cover 11 are both connected to the machine base 1 by screws, and the rear cover 12 is connected to the rear end cover 11 by screws.

[0026] The spinning cup component 10 is located at the front end of the front end cover 9 and is coaxially connected to the main shaft 6. The spinning cup component 10 is directly driven by the high-speed servo motor through the main shaft 6 and is used to accommodate the fiber materials generated during the spinning process. The spinning cup component 10 includes a cup body formed by connecting two hollow truncated cones and a cylindrical cup handle. The cup handle is in contact with the front end of the front end cover 9 and sleeved on the first end of the main shaft 6. A condensation groove is provided at the junction of the two cones inside the cup body. The spinning cup component 10 adopts a self-priming design and can effectively collect fibers and transport them to the spinning part.

[0027] The control module 13 is located inside the rear cover 12 and sleeved on the outer circumference of the main shaft 6, and is used to monitor and control the entire spinning process. A gasket 15 is provided between the control module 13 and the rear end cover 11, and the gasket 15 plays a role in reducing wear and vibration damping. A heat dissipation module 14 is provided between the control module 13 and the rear inner wall of the rear cover 12, and the heat dissipation module 14 is used to dissipate heat from the high-speed servo motor.

[0028] The present invention has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and refinements made without departing from the spirit and scope of the present invention fall within the scope of patent protection of the present invention.

Claims

1. A self-priming high-speed rotary cup servo motor using an air bearing, comprising a high-speed servo motor, characterized in that: It also includes a sensor module, a rotor component and a control module. The high-speed servo motor includes a base, and a front cover and a rear cover are respectively installed at the front and rear ends of the base. The high-speed servo motor also includes a stator and a rotor. The stator is located inside the base, and the rotor is located in the middle of the stator. The rotor is coaxially connected to the main shaft and rotates synchronously. Both ends of the rotor are installed with air bearings. The air bearings use air flotation technology to reduce the friction coefficient of the main shaft when it rotates. The sensor module is located inside the high-speed servo motor and is used to monitor the parameters in the high-speed servo motor and transmit them to the control module. The control module is located at the outer end of the rear cover and is used to monitor and control the entire spinning process. The rotor component is located at the front end of the front end cover and is coaxially connected to the main shaft. The rotor component is directly driven by a high-speed servo motor through the main shaft. The rotor component includes a cup body formed by two hollow truncated cones and a cylindrical cup handle. The cup handle is in conflict with the front end of the front end cover and is sleeved on the first end of the main shaft. A condensation groove is provided at the junction of the two cones inside the cup body. The rotor component adopts a self-priming design. The rotor component rotates at a high speed to generate suction, so that single fibers are condensed in the condensation groove of the spinning cup and gathered into a circumferential spinning fiber ring, which is used to accommodate the fiber material generated during the spinning process and transport it to the spinning part.

2. The self-priming high-speed rotary cup servo motor using an air bearing according to claim 1, characterized in that: The high-speed servo motor includes a stator and a rotor, both of which are installed inside a machine base. The rotor is installed inside the stator and is fixedly connected to the main shaft. A front end cover and a rear end cover are respectively installed at the front and rear of the machine base, and a rear cover is installed at the rear end of the rear end cover. The front end of the main shaft passes through the middle of the front end cover and is fixedly connected to the rotor cup component, and the rear end of the main shaft passes through the middle of the rear end cover and is connected to the heat dissipation module, and the heat dissipation module is located inside the rear cover.

3. The self-priming high-speed rotary cup servo motor using an air bearing according to claim 2, characterized in that: The stator includes a stator core and an insulating winding. The stator core is fixedly connected to the inner wall of the base. The stator core is an annular structure composed of a silicon steel body. An insulating winding is installed on the ring of the stator core. The insulating winding includes a plurality of coils. The insulating winding passes through the interior of the stator core. Both ends of the insulating winding are sealed at the two ends of the stator core by sealing rings.

4. The self-priming high-speed rotary cup servo motor using an air bearing according to claim 3, characterized in that: The rotor is located inside the stator, and includes a rotor core and a rotor magnet. The rotor core is coaxially connected to the main shaft and rotates synchronously. An installation groove is provided on the outer surface of the rotor core, and the rotor magnet is installed in the installation groove. The rotor magnet is made of permanent magnet steel material, and a gap is provided between the rotor magnet and the annular inner wall of the stator core.

5. The self-priming high-speed rotor servo motor using an air bearing according to claim 1, characterized in that: Pairs of air bearings are installed at both ends of the rotor. The air bearings adopt air flotation technology and use gas as a lubricant. The air bearings at both ends of the rotor are respectively located in the bearing seats of the front cover and the rear cover.

6. The self-priming high-speed rotary cup servo motor using an air bearing according to claim 5, characterized in that: A sensor module is installed between the air bearing and the front end cover and between the air bearing and the rear end cover. The sensor module is located inside the high-speed servo motor and is sleeved on the outer circumference of the main shaft. The sensor module rotates coaxially with the main shaft. The sensor module is in contact with the air bearing. The sensor module includes a speed sensor and a pressure sensor.

7. The self-priming high-speed rotary cup servo motor using an air bearing according to claim 3, characterized in that: The front and rear ends of the machine base are respectively installed with a front cover and a rear cover, and the middle parts of the front cover and the rear cover are provided with an axial hole for the main shaft to pass through, and the end faces of the bearing seats of the front cover and the rear cover are respectively in conflict with the two ends of the stator core, and the rear end of the rear cover is installed with a rear cover, the front end of the rear cover is in conflict with the rear end of the machine base, and the inner wall of the rear cover is close to the opening and connected with the outer edge of the rear cover, and the front cover and the rear cover are connected to the machine base by screws, and the rear cover is connected to the rear cover by screws.

8. The self-priming high-speed rotary cup servo motor using an air bearing according to claim 1, characterized in that: The control module is located inside the rear cover and sleeved on the outer periphery of the main shaft. A gasket is arranged between the control module and the rear end cover. A heat dissipation module is arranged between the control module and the rear end inner wall of the rear cover.

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