Self-suction high-speed revolving cup servo motor adopting air bearing

Abstract

The invention provides a self-suction high-speed revolving cup servo motor adopting an air bearing, and relates to a servo motor of a high-speed revolving cup spinning machine, the self-suction high-speed revolving cup servo motor comprises a high-speed servo motor, a sensor module, a revolving cup component and a control module, the high-speed servo motor comprises a machine base, and a front end cover and a rear end cover are installed at the front end and the rear end of the machine base respectively; the high-speed servo motor further comprises a stator and a rotor, the stator is located in the machine base, the rotor is located in the middle of the stator, the rotor and the main shaft are coaxially connected and rotate synchronously, air bearings are installed at the two ends of the rotor, the air bearings adopt the air flotation technology, and the sensor module is located in the high-speed servo motor. The control module is located at the outer end of the rear end cover. The rotor part is driven in a direct drive mode, the air bearing is adopted, the transmission efficiency is improved, the spinning speed is increased, and meanwhile the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention relates to a servo motor of a high-speed rotor spinning machine, in particular to a self-priming high-speed rotor servo motor using an air floating bearing. Background Art

[0002] Rotor spinning is also called air-spinning or free-end spinning. Among various new spinning methods, rotor spinning technology is the most mature and widely used spinning method. In cotton fiber processing, it can be used to spin combed cotton yarn, denim yarn, low-twist rotor yarn and waste yarn, etc. In non-cotton fiber processing, it can be used to spin wool and blended yarn and silk spinning waste rotor yarn, etc.

[0003] In the spinning industry, rotor spinning machines are a common spinning equipment, which are mainly used to spin synthetic fibers and other materials. Traditional rotor spinning machines usually use 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 the existing technology still has room for improvement. Summary of the invention

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

[0005] To achieve the above object, the present invention adopts the following technical solutions: A self-priming high-speed rotor servo motor using an air bearing comprises a high-speed servo motor, a sensor module, a rotor component and a control module. The high-speed servo motor comprises a base, and a front end cover and a rear end cover are respectively installed at the front and rear ends of the base. The high-speed servo motor also comprises 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 equipped with air bearings. The air bearings adopt air flotation technology, which can reduce the friction coefficient of the main shaft when rotating. 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. 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 inside the cup body at the junction of the two cones. The rotor component adopts a self-priming design to accommodate the fiber material generated during the spinning process and transport it to the spinning part.

[0006] Preferably, the high-speed servo motor includes a stator and a rotor, both of which are installed inside the base, the rotor is installed inside the stator, the rotor is fixedly connected to the main shaft, the front and rear ends of the base are respectively installed with a front cover and a rear cover, the rear end of the rear cover is installed with a rear cover, the front end of the main shaft passes through the middle part of the front cover and is fixedly connected to the rotor cup component, the rear end of the main shaft passes through the middle part of the rear cover and is connected to the heat dissipation module, and the heat dissipation module is located inside the rear cover.

[0007] 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 an annular structure, and is composed of a silicon steel body. An insulating winding is installed on the ring of the stator core, and the insulating winding includes a plurality of coils. The insulating winding passes through the interior of the stator core, and the two ends of the insulating winding are respectively sealed at the two ends of the stator core by sealing rings.

[0008] Preferably, the rotor is located inside the stator, and the rotor includes a rotor core and a rotor magnet. The rotor core is coaxially connected to the main shaft and rotates synchronously. The outer surface of the rotor core is provided with a mounting groove, and the rotor magnet is installed in the mounting 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.

[0009] Preferably, a pair 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.

[0010] Preferably, 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, a pressure sensor, etc.

[0011] Preferably, a front end cover and a rear end cover are respectively installed at the front and rear ends of the machine base, an axial hole for the main shaft to pass through is provided in the middle of the front end cover and the rear end cover, the end faces of the bearing seats of the front end cover and the rear end cover are respectively in contact with the two ends of the stator core, a rear cover is installed at the rear end of the rear end cover, the front end of the rear cover is in contact with the rear end of the machine base, the inner wall of the rear cover is close to the opening and connected to the outer edge of the rear end cover, the front end cover and the rear end cover are connected to the machine base by screws, and the rear cover is connected to the rear end cover by screws.

[0012] Preferably, the control module is located inside the rear cover and sleeved on the outer circumference of the main shaft, a gasket is arranged between the control module and the rear end cover, and a heat dissipation module is arranged between the control module and the rear end inner wall of the rear cover.

[0013] The beneficial effects of the present invention are as follows: the present invention adopts a high-speed servo motor as a 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 component, and the rotor component is driven to work in a direct drive manner, which simplifies the transmission system, improves the transmission efficiency, and reduces noise and failure rate; the bearing part of the high-speed servo motor adopts an air-floating bearing, and uses air-floating technology and gas as a 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 component is connected to the high-speed servo motor, and is used to accommodate the fiber material generated in the spinning process. The rotor component adopts a self-priming design, and the rotor component rotates at a high speed to generate suction, so that the single fiber is condensed on the spinning In the yarn cup condensation groove, the fibers are gathered into a circular spinning fiber ring, which can effectively collect the fibers and transport them to the spinning part, thereby increasing the spinning speed. The control system is connected to the high-speed servo motor, air bearing and rotor components to monitor and control the entire spinning process. At the same time, the control system can automatically adjust the speed of the high-speed servo motor, the air pressure of the air bearing and other parameters according to actual production needs to optimize the spinning process and ensure quality. The sensor module is located inside the high-speed servo motor and in contact with the air bearing. It can monitor the speed of the high-speed servo motor, the air pressure of the air bearing and other related parameters in real time, and transmit the data to the control system to achieve precise control and fault warning, thereby improving the intelligence of the equipment and facilitating timely maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the internal structure of an embodiment of the present invention; Figure numbers: 1-base; 2-stator core; 3-insulating winding; 4-rotor core; 5-rotor magnet; 6-main shaft; 7-air 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 DESCRIPTION

[0015] In order to provide a further understanding of the purpose, structure, features and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0016] A self-priming high-speed rotor servo motor using an air bearing includes a high-speed servo motor, a sensor module 8, a rotor component 10 and a control module 13. The high-speed servo motor adopts an inner rotor motor method, including a base 1, a main shaft 6 is installed inside the base 1, and a front cover 9 and a rear cover 11 are installed at the front and rear ends of the base 1 respectively. The rotor component 10 is located at the front end of the high-speed servo motor and contacts the outer end of the front cover 9. The rotor component 10 is fixedly connected to the main shaft 6. The high-speed servo motor directly drives the rotor component 10 to rotate through the main shaft 6. The rotor component 10 adopts a self-priming design to accommodate fiber materials generated during the spinning process. The high-speed servo The motor includes a stator and a rotor, which are used to convert mechanical energy and electrical energy. The stator is located inside the base 1 and contacts the inner wall of the base 1. The rotor is located in the middle of the stator. The rotor is coaxially connected to the main shaft 6 and rotates synchronously. The stator and the rotor respectively include an insulating winding 3 and a rotor magnet 5 for providing a magnetic field. Air bearings 7 are installed at both ends of the rotor. The air bearings 7 use air flotation technology 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.

[0017] The high-speed servo motor adopts an inner rotor motor, including a stator and a rotor, both of which 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, and the rotor is fixedly connected to the main shaft 6. The front and rear ends of the machine base 1 are respectively installed with a front cover 9 and a rear cover 11, and the rear end of the rear cover 11 is installed with a rear cover 12. The front end of the main shaft 6 passes through the middle of the front cover 9 and is fixedly connected to the rotor cup component 10, and the rear end of the main shaft 6 passes through the middle of the rear cover 11 and is connected to the heat dissipation module 14, and the heat dissipation module 14 is located inside the rear cover 12.

[0018] The stator includes a stator core 2 and an insulating winding 3, which are used to generate an induced potential. The stator core 2 is fixedly connected to the inner wall of the base 1. The stator core 2 is a ring-shaped structure composed of a silicon steel body. 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 interior of the stator core 2. The two ends of the insulating winding 3 are sealed at the two ends of the stator core 2 by sealing rings.

[0019] The rotor is located inside the stator and is used to generate a magnetic field. The rotor includes a rotor core 4 and a rotor magnet 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 a mounting groove, and the rotor magnet 5 is installed in the mounting groove. The rotor magnet 5 is made of permanent magnet steel material, and a gap is provided between the rotor magnet 5 and the annular inner wall of the stator core 2.

[0020] 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 flotation technology and use gas as a lubricant to 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 cover 9 and the rear cover 11.

[0021] A sensor module 8 is installed between the air bearing 7 and the front end cover 9 and between the air bearing 7 and the rear end cover 11. The sensor module 8 is located inside the high-speed servo motor and is sleeved on the outer periphery of the main shaft 6. The sensor module 8 rotates coaxially with the main shaft 6. The sensor module 8 is in contact with the air bearing 7. The sensor module 8 includes a speed sensor and a pressure sensor, etc., which are used to monitor the rotation speed of the high-speed servo motor, the air pressure of the air bearing and other related parameters in real time.

[0022] The front and rear ends of the machine base 1 are respectively installed with a front cover 9 and a rear cover 11. The middle parts of the front cover 9 and the rear cover 11 are provided with an axial hole for the main shaft 6 to pass through. The end faces of the bearing seats of the front cover 9 and the rear cover 11 are respectively in contact with the two ends of the stator core 2. The rear end of the rear cover 11 is installed with a rear cover 12. 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 close to the opening and connected to the outer edge of the rear cover 11. The front cover 9 and the rear cover 11 are connected to the machine base 1 by screws, and the rear cover 12 is connected to the rear cover 11 by screws.

[0023] The rotor component 10 is located at the front end of the front end cover 9 and is coaxially connected to the main shaft 6. The rotor component 10 is directly driven by a high-speed servo motor through the main shaft 6 and is used to accommodate the fiber material generated during the spinning process. The rotor component 10 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 9 and is sleeved on the first end of the main shaft 6. A condensation groove is provided inside the cup body at the junction of the two cones. The rotor component 10 adopts a self-priming design, which can effectively collect fibers and transport them to the spinning part.

[0024] The control module 13 is located inside the rear cover 12 and is sleeved on the outer periphery of the main shaft 6, and is used to monitor and control the entire spinning process. A gasket 15 is arranged between the control module 13 and the rear end cover 11. The gasket 15 plays a role in reducing wear and vibration. A heat dissipation module 14 is arranged between the control module 13 and the rear end inner wall of the rear cover 12. The heat dissipation module 14 is used to dissipate heat for the high-speed servo motor.

[0025] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned 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, changes and modifications made without departing from the spirit and scope of the present invention are all 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 inside the cup body at the junction of the two cones. The rotor component adopts a self-priming design 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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