CN113937973A - Servo type driving motor on permanent magnet direct-drive ball mill - Google Patents

Servo type driving motor on permanent magnet direct-drive ball mill Download PDF

Info

Publication number
CN113937973A
CN113937973A CN202111381234.1A CN202111381234A CN113937973A CN 113937973 A CN113937973 A CN 113937973A CN 202111381234 A CN202111381234 A CN 202111381234A CN 113937973 A CN113937973 A CN 113937973A
Authority
CN
China
Prior art keywords
stator
power mechanism
follow
ball mill
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111381234.1A
Other languages
Chinese (zh)
Inventor
张炳义
尚勤贵
冯桂宏
王帅
卞浩田
吴鹏
尚金铎
高敏
陈高敏
尚金鸽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Quanxin Liquid Start Up Equipment Co ltd
Original Assignee
Henan Quanxin Liquid Start Up Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan Quanxin Liquid Start Up Equipment Co ltd filed Critical Henan Quanxin Liquid Start Up Equipment Co ltd
Priority to CN202111381234.1A priority Critical patent/CN113937973A/en
Publication of CN113937973A publication Critical patent/CN113937973A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02Details
    • H02K21/021Means for mechanical adjustment of the excitation flux
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • B02C17/24Driving mechanisms
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2201/00Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/03Machines characterised by aspects of the air-gap between rotor and stator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Food Science & Technology (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

本发明公开了一种永磁直驱球磨机上的随动式驱动电机,包括球磨机滚筒、定子动力机构、转子动力机构、支撑框架和转筒,定子动力机构连接在支撑框架的向心内侧,定子动力机构包括定子矽钢片、线圈、定子壳体、导轮、弹性压力装置;转子动力机构包括转子矽钢片、永磁体、隔磁铝板;转子动力机构设置在转筒的外表面,球磨机滚筒设置在转筒内表面,导轮设置在定子壳体向心内表面与转筒之间,弹性压力装置设置在支撑框架与定子壳体向心外表面之间,定子动力机构与转子动力机构组成随动式驱动电机;本结构设计新颖,可控制定子铁心与转子铁心之间的间隙恒定,使间隙设计的很小,减少永磁体用量,降低电机制造成本,同时极大程度减少或避免了电机转子偏心带来的影响,运行平稳。颠覆传统的理念,使电机偏心旋转运行依然能正常运行,免于频繁校正定子铁心与转子铁心之间的间隙,免于频繁维修更换轴承,不需要发生偏心后就要停机检修,连续工作时间更长,降低了检修次数,提高了生产效率。

Figure 202111381234

The invention discloses a follow-up drive motor on a permanent magnet direct drive ball mill, comprising a ball mill drum, a stator power mechanism, a rotor power mechanism, a support frame and a rotating drum. The power mechanism includes stator silicon steel sheet, coil, stator housing, guide wheel, and elastic pressure device; the rotor power mechanism includes rotor silicon steel sheet, permanent magnet, and magnetic isolation aluminum plate; the rotor power mechanism is arranged on the outer surface of the drum, and the ball mill drum It is arranged on the inner surface of the rotating drum, the guide wheel is arranged between the centripetal inner surface of the stator casing and the rotating drum, the elastic pressure device is arranged between the support frame and the centripetal outer surface of the stator casing, and the stator power mechanism and the rotor power mechanism are composed Follow-up drive motor; the structure design is novel, and the gap between the stator iron core and the rotor iron core can be controlled to be constant, so that the gap design is very small, the amount of permanent magnets is reduced, the manufacturing cost of the motor is reduced, and the motor is greatly reduced or avoided. The influence of rotor eccentricity, the operation is stable. Subvert the traditional concept, so that the eccentric rotation of the motor can still run normally, avoid frequent correction of the gap between the stator iron core and the rotor iron core, and avoid frequent maintenance and replacement of bearings. Longer, reduce the number of maintenance and improve production efficiency.

Figure 202111381234

Description

Servo type driving motor on permanent magnet direct-drive ball mill
Technical Field
The invention relates to the technical field of ball mill driving motors, in particular to a follow-up driving motor on a permanent magnet direct-drive ball mill.
Background
The ball mill is a device for crushing materials, and the basic principle of the ball mill is that a steel ball in a cylinder is lifted to a certain height by utilizing a rotating force to be thrown and dropped to crush the materials, the materials are crushed by mutual contact between the steel ball and the materials, the traditional ball mill needs to be provided with a complex transmission mechanism, a motor output shaft drives a pinion through a speed reducer, and the pinion drives a gear wheel to drive a rotary drum to rotate. The Chinese patent application No. 201610640563.6 discloses a permanent magnet synchronous motor direct-drive energy-saving ball mill, wherein a rotary drum is provided with a feeding shaft and a discharging end at two ends respectively, the rotary drum is sleeved in a sliding bearing, the sliding bearing is arranged on a bearing support frame, the surface of the rotary drum is sleeved with an annular motor, the annular motor is arranged on a motor support frame, the annular motor comprises a shell, a stator and a rotor, the shell is fixed on the motor support frame, a stator core and a stator winding are distributed in the stator, the stator is fixedly arranged in the shell, the rotor is a permanent magnet pole fixedly connected with a pole support frame, and the pole support frame is fixedly arranged on the shell of the rotary drum; the permanent magnet magnetic pole is directly arranged on the surface of the rotary drum, the rotary drum is directly driven by the annular motor, the complicated transmission mechanisms are completely eliminated, the operation is more stable, no transmission loss exists, the occupied area is less, more ball mills can be arranged in the same factory building, and the production efficiency is improved, and the energy conservation and emission reduction are facilitated. However, because the diameter of the roller of the ball mill is large, the roller is used as a rotor of a permanent magnet direct drive motor, the roller is deformed during mechanical manufacturing and material processing and assembly, and the ball mill is overlong, has overlarge weight and causes eccentric swing during operation due to the clearance and abrasion of a supporting system. The eccentricity causes uneven clearance between a stator core and a rotor core of the motor, further generates vibration and noise, increases loss, increases temperature rise and the like, and when the eccentricity is serious, the stator core and the rotor core can be contacted, the chamber sweeping phenomenon is generated, and the motor is damaged. Therefore, when the permanent magnet motor is applied to manufacturing products, the motor is prevented from sweeping the chamber only by increasing the gap between the rotor and the stator, the motor is required to be stopped frequently to calibrate and adjust the gap, the gap between the stator and the rotor of the direct-drive permanent magnet motor is increased, the using amount of the permanent magnet is increased, and the cost is increased. There is therefore a great need in the market for improved techniques to solve the above problems.
Disclosure of Invention
The invention aims to overcome the existing defects and provides a follow-up type driving motor on a permanent magnet direct-drive ball mill, which has novel structural design, can control the constant gap between a stator iron core and a rotor iron core, ensures that the gap design is very small, reduces the using amount of permanent magnets, reduces the manufacturing cost of the motor, greatly reduces or avoids the influence caused by the eccentricity of a motor rotor, and operates stably. The traditional concept is overturned, so that the motor can still normally operate in the eccentric rotation operation, the frequent correction of the gap between the stator core and the rotor core is avoided, the frequent maintenance and replacement of the bearing is avoided, the shutdown maintenance is not needed after the eccentricity occurs, the continuous working time is longer, the maintenance frequency is reduced, the production efficiency is improved, and the problems in the background art can be effectively solved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a follow-up driving motor on permanent magnetism direct drive ball mill, includes ball mill cylinder, stator power unit, rotor power unit, braced frame, rotary drum, its characterized in that: the stator power mechanism is connected to the centripetal inner side of the supporting frame and comprises a stator silicon steel sheet, a coil, a stator shell, a guide wheel and an elastic pressure device. The rotor power mechanism comprises a rotor silicon steel sheet, a permanent magnet and a magnetic isolation aluminum plate. The rotor power mechanism is arranged on the outer surface of the rotary drum, the ball mill rotary drum is arranged on the inner surface of the rotary drum, the guide wheel is arranged between the centripetal inner surface of the stator shell and the rotary drum, the elastic pressure device is arranged between the supporting frame and the centripetal outer surface of the stator shell, the stator power mechanism and the rotor power mechanism form a follow-up driving motor, and the permanent magnets and the rotor silicon steel sheets are uniformly distributed around the rotary drum rotary shaft; when the motor is powered on, a power mechanism of the rotor is driven to drive the rotary drum to rotate, a plurality of independent follow-up driving motors flexibly perform circumferential and radial follow-up motion under the eccentric state of the rotary drum of the ball mill, the gap between the stator and the rotor of the motor is controlled by the constant distance of a rolling guide wheel of the follow-up driving motor, the smaller the gap between the stator and the rotor is, the less the permanent magnet is used, the lower the manufacturing cost of the motor is, the higher the efficiency is, and the more obvious the electricity-saving effect is.
Furthermore, braced frame adopts the mode equipment of concatenation, and braced frame passes through the spiro union and installs on the pre-buried good basis with ground contact, and braced frame's concatenation mode is constituteed, and convenient transportation, braced frame periphery and both sides face movable seal prevent dust, water, to inside driving motor's influence.
Furthermore, the elastic pressure device comprises a connecting rod, a fixed screw rod, an adjusting nut and a pressure spring. A plurality of bosses are welded on the inner side of the supporting frame along the circumference, a plurality of small supporting pieces are screwed on the bosses, and the small supporting pieces support the connecting rod and the elastic pressure device. The stator shell is provided with a cavity, the lower end of the connecting rod penetrates through the small supporting piece to be inserted into the cavity for fixing, the fixing connection disc at the upper end of the connecting rod is provided with a through hole, a plurality of fixing lead screws penetrate through the connection disc through holes to be in threaded connection with the small supporting piece, an adjusting nut is arranged above the fixing lead screws, a pressure spring is arranged between the adjusting nut and the fixing connection disc of the connecting rod, and the adjusting nut plays a role in adjusting the radial pressure of the driving motor.
Further, the assembly position of the elastic pressure device is preferably assembled on the circumferential surface of the supporting frame, and the pressure spring is preferably a disc spring.
Furthermore, the elastic pressure device is arranged between the stator shell and the supporting frame, does not influence the disassembly of the stator power mechanism, can be arranged in the middle above the stator shell, and can also be arranged at two sides above the stator shell, namely, the elastic pressure device structure is arranged at the centripetal outer side of each stator shell and in the supporting frame and can be distributed at different parts of the inner circumference of the supporting frame.
Furthermore, a guide wheel fixing seat is fixed on the centripetal inner surface of the stator shell, the guide wheels are installed on the guide wheel fixing seat and are in contact with the outer surface of the rotary drum, four guide wheels are arranged on a single stator power mechanism and are arranged at the centripetal four corners of a chassis of the follow-up driving motor so as to obtain stability, the guide wheel mechanism comprises a guide wheel fixing seat, a pin shaft and a bearing, the distance between the centripetal outer arc surface of the guide wheel fixing seat and the centripetal inner arc surface of the stator shell can be adjusted during initial assembly of the guide wheels, the subsequent guide wheels can be adjusted after abrasion, the guide wheels are positioned and screwed after the distance is adjusted, the guide wheels of the follow-up driving motor are in constant-distance rolling contact with the outer surface of the rotary drum screwed on the periphery of the rotary drum, the gap between the stator core and the rotor core is ensured to be unchanged, the gap can be designed to be smaller, and the chamber sweeping phenomenon can not occur so as to damage the motor, the smaller the gap, the less the permanent magnet of the motor, the higher the efficiency, the more energy-saving the motor and the lower the cost.
Furthermore, the follow-up driving motor adopts a modular design, the stator power mechanism is independently arranged on the circumference of the rotary drum, and the follow-up driving motor is provided with a fan-shaped block shell mechanical structure, a silicon steel sheet, a water cooling pipeline, a coil, a testing system and an independent elastic pressure device which are independent of each other.
Furthermore, the supporting frame is provided with a stop block along the circumferential direction, the two circumferential ends of each follow-up driving motor are fixedly provided with a stop block, the contact surface of each stop block and the stator power mechanism is provided with a rubber block, the stop blocks are used for limiting the moving range of the stator power mechanism, the torque force of the driving motor running along the circumferential direction is stopped when the driving motor rotates forwards or backwards, and the adjacent stator silicon steel sheets are protected from being deformed due to collision.
Furthermore, the axial direction and the circumferential radial direction of the supporting frame can be continuously provided with a stop block, so that the stator power mechanism is subjected to limiting protection in all directions.
Further, the stator punching sheet of each stator module is respectively laminated and fastened, an arc-shaped stator pressing ring is utilized to compress and fix, a small-span coil is embedded into a stator groove, stator winding insulation and binding treatment are simultaneously performed, the manufactured stator module is integrally subjected to paint dipping treatment and drying, the manufacture and packaging of each module are completed, each stator module is installed and fixed on a fan-shaped stator shell, a guide wheel and an elastic pressure device are added, the stator punching sheet is distributed and installed in a supporting frame, a follow-up driving motor is formed by the stator punching sheet and a rotor power mechanism, and the follow-up driving motor is debugged and operated respectively or integrally.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention subverts the traditional concept and enables the eccentric rotation operation of the motor to still normally operate. The invention avoids frequently correcting the gap between the stator core and the rotor core and frequently maintaining and replacing the bearing, can still be used due to larger bearing abrasion, does not influence the motor efficiency, does not need to be stopped and overhauled after the eccentricity is generated like a motor with a traditional structure, has longer continuous working time and large size of a mill, is troublesome to overhaul, and reduces the overhauling frequency, namely improves the production efficiency.
2. The servo-type driving motor is arranged on the servo-type driving motor, the gap between the stator and the rotor of the motor is controlled by the constant distance of the rolling guide wheel of the servo-type driving motor, and the smaller the gap between the stator and the rotor is on the basis that the motor does not sweep the chamber during operation, the higher the motor efficiency is, the more obvious the electricity-saving effect is, the lower the motor manufacturing cost is, and the amplitude of the driving motor is released by the driving motor, so that the aim of stable operation is fulfilled.
3. The invention is provided with an elastic pressure device, a pressure spring of the elastic pressure device is in a semi-compression state when a roller of the ball mill is not eccentric, if the roller of the ball mill fluctuates upwards, the roller can push up a guide wheel on a servo-type driving motor stator power mechanism upwards to drive the stator power mechanism to move upwards, the pressure spring above continuously compresses, meanwhile, the pressure spring on the lower stator power mechanism pushes up the lower stator power mechanism upwards to ensure that the guide wheel of the lower stator power mechanism is still attached to the outer surface of the roller, so that the gap between the stator and the rotor is ensured to be unchanged, the roller of the ball mill resets downwards or continuously fluctuates downwards, the pressure spring of the upper stator power mechanism presses the upper stator power mechanism downwards, and the lower stator power mechanism is pressed downwards by the roller. Thereby ensuring that the clearance between the stator core and the rotor core is not changed when the motor is eccentrically vibrated.
Drawings
FIG. 1 is a schematic view of the overall assembly structure of the present invention;
FIG. 2 is a schematic view of a partial structure of a rotor power mechanism according to the present invention;
FIG. 3 is a schematic side view of the rotor power mechanism and a single stator power mechanism according to the present invention;
fig. 4 is a schematic structural diagram of an elastic device in a single stator power mechanism according to the present invention.
In the figure: 1 ball mill roller, 2 stator power units, 3 elastic pressure devices, 4 support frames, 5 rotor power units, 6 rotating cylinders, 7 adjusting nuts, 8 pressure springs, 9 connecting rods, 10 fixed lead screws, 11 cavities, 12 guide wheel fixing seats, 13 guide wheels, 14 follow-up driving motors, 15 connecting holes, 16 magnetic isolation aluminum plates, 17 rotor silicon steel sheets, 18 stator silicon steel sheets, 19 coils, 20 water cooling pipelines, 21 stator shells, 22 permanent magnets, 23 stoppers and 24 small support pieces.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The invention is described in detail with reference to the accompanying drawings, which provide a technical solution: a servo drive motor on a permanent magnet direct drive ball mill comprises a ball mill roller 1, a stator power mechanism 2, a rotor power mechanism 5, a support frame 4 and a rotating drum 6; the stator power mechanism is connected to the centripetal inner side of the support frame and comprises a stator silicon steel sheet 18, a coil 19, a stator shell 21, a guide wheel 13 and an elastic pressure device 3. The rotor power mechanism comprises a rotor silicon steel sheet 17, a permanent magnet 22 and a magnetism isolating aluminum plate 16, the rotor power mechanism is arranged on the outer surface of the rotary drum, the rotary drum is provided with a connecting hole 15 for flange mounting of the roller of the ball mill, the guide wheel is arranged between the centripetal inner surface of the stator shell and the rotary drum, the elastic pressure device is arranged between the support frame and the centripetal outer surface of the stator shell, the stator power mechanism and the rotor power mechanism form a follow-up driving motor 14, and the permanent magnet and the rotor silicon steel sheet of the rotor power mechanism are uniformly distributed around the rotary drum rotating shaft; when the motor is powered on, a power mechanism of the rotor is driven to drive the rotary drum to rotate, a plurality of independent follow-up driving motors flexibly perform circumferential and radial follow-up motion under the eccentric state of the rotary drum of the ball mill, the gap between a stator and a rotor of the motor is controlled by the constant distance of a rolling guide wheel of the follow-up driving motor, the smaller the gap between the stator and the rotor is on the basis that the motor does not sweep the chamber during operation, the higher the motor efficiency is, the more obvious the electricity-saving effect is, the lower the manufacturing cost of the motor is, the plurality of modularized follow-up driving motors are arranged on the outer surface of a rotor structure screwed on the periphery of the eccentric or vibrating rotary drum, the follow-up driving motors move along with the vibration of the rotary drum, the gap between a stator core and a rotor core is ensured to be unchanged, and the purpose of stable operation is achieved.
The braced frame adopts the mode equipment of concatenation, and braced frame passes through the spiro union and installs on the pre-buried good basis with ground contact, and braced frame's concatenation mode is constituteed, and convenient transportation, braced frame periphery and both sides face movable seal prevent dust, water, to inside driving motor's influence. Elastic pressure device one end is connected with braced frame, and the other end is connected with driving motor's stator casing, and elastic pressure device includes connecting rod 9, fixed screw 10, adjusting nut 7, pressure spring 8, and braced frame's inboard welding a plurality of boss, a plurality of little support piece 24 of spiro union on the boss, little support piece support connecting rod and elastic pressure device. The stator shell is provided with a cavity 11, the lower end of the connecting rod penetrates through the small support piece to be inserted into the cavity for internal fixation, the fixing connection disc at the upper end of the connecting rod is provided with a through hole, a plurality of fixing lead screws penetrate through the connection disc through holes to be in threaded connection with the small support piece, an adjusting nut is arranged above the fixing lead screws, a pressure spring is arranged between the adjusting nut and the fixing connection disc of the connecting rod, and the adjusting nut plays a role in adjusting the radial pressure of the driving motor. The assembly position of the elastic pressure device is preferably assembled on the circumferential surface of the supporting frame, the pressure spring is preferably a disc spring, and the elastic pressure device is used for buffering and consuming the amplitude transmitted to the driving motor when the rotary drum rotates and releasing the amplitude from the rotary drum; the elastic pressure device structures are arranged on the centripetal outer side of each driving stator shell and in the supporting frame and are distributed on different parts of the inner circumference of the frame, and the positions of each pressure device on the annular supporting frame are different, and the pressure settings are different; such as: when the frame is arranged right above the stator power mechanism, the self weight of the stator power mechanism is added with the attraction force of the permanent magnet, the elastic pressure can be set to be smaller, the frame is arranged right below the stator power mechanism, and the elastic pressure in the pressure device is correspondingly increased by a little because the self weight of the stator power mechanism sinks.
The elastic pressure device is arranged between the stator shell and the supporting frame and does not influence the disassembly of the stator power mechanism, can be arranged in the middle above the stator shell and also can be arranged at two sides above the stator shell, namely, the elastic pressure device structure is arranged at the centripetal outer side of each stator shell and in the supporting frame and can be distributed at different parts of the inner circumference of the supporting frame.
A guide wheel is arranged between the centripetal inner surface of a stator shell of the follow-up driving motor and the rotary drum, an elastic pressure device is arranged between the centripetal outer surface of the stator shell and the supporting frame, after the motor is powered on, a stator power mechanism drives a rotor power mechanism to drive the rotary drum and the rotary drum to rotate, a plurality of independent driving motors flexibly perform circumferential and radial follow-up under the eccentric state of the rotary drum, and the gap between a stator and a rotor of the motor is controlled by rolling the guide wheel of the driving motor at a constant distance so as to be controlled to be minimum; the follow-up driving motors are in modular design, are produced in a factory and produced in a flowing mode, are transported, are assembled on site, and are convenient to replace subsequently, and the plurality of follow-up driving motors with independent structures on the rotary drum are provided with independent sector shell mechanical structures, silicon steel sheets, cooling systems, coils, testing systems and independent elastic pressure systems.
The inner side surface of the stator shell is fixed with a guide wheel fixing seat 12, the guide wheels are installed on the guide wheel fixing seat and are in contact with the outer surface of the rotary drum, a single stator power mechanism is provided with four guide wheels, the guide wheels are arranged at four centripetal corner positions of a chassis of a follow-up driving motor to obtain stability, the guide wheel mechanism is provided with a guide wheel fixing seat, a pin shaft and a bearing, the distance between the centripetal outer side cambered surface of the guide wheel fixing seat and the centripetal inner surface cambered surface of the stator shell can be adjusted during initial assembly of the guide wheels, the subsequent guide wheels can be adjusted after abrasion, positioning and screwing are carried out after the distance is adjusted, the guide wheels of the follow-up driving motor are in constant-distance rolling contact with the outer surface of the rotary drum screwed on the periphery of the rotary drum, the gap between a stator iron core and a rotor iron core is ensured to be unchanged, the gap can be designed to be smaller, the phenomenon of sweeping cannot occur to damage the motor, the smaller gap is, and the use amount of permanent magnets of the motor is less, the higher the motor efficiency, the more energy-saving the motor and the lower the cost.
The follow-up driving motor adopts a modular design, the stator power mechanism is independently arranged on the circumference of the rotary drum, and the follow-up driving motor is provided with a fan-shaped block shell mechanical structure, a silicon steel sheet, a water cooling pipeline 20, a coil, a testing system and an independent elastic pressure device which are independent of each other.
The supporting frame is provided with the stop blocks 23 along the circumferential direction, the two ends of the circumferential direction of each follow-up type driving motor are fixedly provided with the stop blocks, the stop blocks are used for limiting the moving range of the stator power mechanism, the torsion force of the driving motor running along the circumferential direction is blocked when the driving motor rotates forwards or backwards, and the adjacent stator silicon steel sheets are protected from being deformed due to collision. The axial direction and the circumferential radial direction of the supporting frame can be continuously provided with a stop block, and the stator power mechanism is limited and protected from all directions. The contact surface of the stop block and the stator power mechanism is provided with a rubber block or other materials to reduce noise generated in collision, and one side of the support frame is provided with a plurality of small circular holes, so that the purpose of routing each drive motor waterway pipeline and each winding outgoing line via hole is facilitated.
The stator punching sheet of each stator module is respectively laminated and fastened, an arc-shaped stator pressing ring is utilized to compress and fix, a small-span coil is embedded into a stator groove, stator winding insulation and binding treatment are simultaneously performed, the manufactured stator module is integrally subjected to paint dipping treatment and drying, the manufacture and the encapsulation of each module are completed, each stator module is installed and fixed on a fan-shaped stator shell, a guide wheel and an elastic pressure device are added, the stator module is distributed and installed in a supporting frame, a follow-up driving motor is formed by the stator module and a rotor power mechanism, and the follow-up driving motor is respectively or integrally debugged and operated.
The water cooling system can be arranged on the periphery of the silicon steel sheet of the driving motor, a semicircular groove is excavated in the axial direction, a repeated S-shaped jointless copper pipe is placed, and an inlet and an outlet of the pipeline are led to the periphery of the driving motor to be connected with the soft high-pressure water pipeline. The traditional water tank mode can also be adopted to be arranged on the centripetal outer side surface of the stator shell for fixing the stator silicon steel sheet. The water pipe connected with the inlet and the outlet of the water cooling system is required to be flexible, such as a soft high-pressure water pipe, so that the water pipe of the water cooling system is ensured not to interfere with the movement of the stator power mechanism or be damaged due to the movement of the stator power mechanism.
A stator winding of a driving motor is controlled by a frequency converter, the stator winding consists of a plurality of short-pitch independent sub-windings and is arranged on a stator, three-phase wiring terminals led out by the sub-windings are respectively connected with terminals in a terminal box arranged on a machine shell, and terminal output ends of the terminal box connected with the sub-windings are respectively and electrically connected with the frequency converter by leading out through holes of a frame; the design of the low-voltage coil and the winding solves the problems that when the high-voltage alternating-current motor is used as a main driving motor of mechanical equipment, a high-voltage frequency converter with higher price is adopted, and the cost performance is lower; the control problem of a large current contactor of the low-voltage high-power alternating-current motor is solved; the problems of current grade, difficult cooling and the like when the low-voltage high-power alternating-current motor adopts a low-voltage high-power frequency converter for power supply are avoided
The driving motors are uniformly arranged in the supporting frame according to the circumference, the outer surface and the two side surfaces of the circumference of the frame are sealed after all the driving motors are assembled, the blower blows air into the driving motors, and air quantity is blown out from a circumferential gap between the stator and the roller through positive pressure, so that the internal cooling of the driving motors is completed, and the sealing of the driving motors on external dust, water and iron element grains is also completed.
When in use: the pressure spring of the elastic pressure device is in a semi-compression state when the roller of the ball mill is not eccentric, if the roller of the ball mill fluctuates upwards, the rotary drum can push up a guide wheel on a follow-up type driving motor stator power mechanism upwards to drive the stator power mechanism to move upwards, the pressure spring above continues to compress, meanwhile, the pressure spring on the lower stator power mechanism pushes the lower stator power mechanism upwards, the guide wheel of the lower stator power mechanism is still attached to the outer surface of the rotary drum, so that the gap between the stator and the rotor is ensured to be unchanged, the roller of the ball mill resets downwards or continues to fluctuate downwards, the pressure spring of the upper stator power mechanism presses the upper stator power mechanism downwards, and the lower stator power mechanism is pressed downwards by the rotary drum; the gap between the stator and the rotor of the motor is controlled by the constant distance of the rolling guide wheel of the follow-up driving motor, the smaller the gap between the stator and the rotor is on the basis that the motor does not sweep the chamber during operation, the higher the motor efficiency is, the more obvious the electricity-saving effect is, the less the permanent magnet is used, the lower the motor manufacturing cost is, the amplitude is released by the driving motor, so that the purpose of stable operation is achieved, and the distance can be adjusted between the centripetal outer cambered surface of the guide wheel fixing seat and the centripetal inner surface of the stator shell in the follow-up driving motor structure through the elastic pressure device. The invention subverts the traditional concept and enables the eccentric rotation operation of the motor to still normally operate. The invention avoids frequently correcting the gap between the stator core and the rotor core and frequently maintaining and replacing the bearing, can still be used due to larger bearing abrasion without influencing the motor efficiency, does not need to be stopped for maintenance after the eccentricity is generated like a motor with a traditional structure, has longer continuous working time and large size of a mill, is troublesome to maintain, and reduces the maintenance frequency, namely improves the production efficiency.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, the invention further resides in various changes and modifications which fall within the scope of the invention as claimed.

Claims (9)

1.一种永磁直驱球磨机上的随动式驱动电机,包括球磨机滚筒、定子动力机构、转子动力机构、支撑框架、转筒,其特征在于:所述定子动力机构连接在支撑框架的向心内侧,定子动力机构包括定子矽钢片、线圈、定子壳体、导轮、弹性压力装置,转子动力机构包括转子矽钢片、永磁体、隔磁铝板,转子动力机构设置在转筒的外表面,球磨机滚筒设置在转筒内表面,导轮设置在定子壳体向心内表面与转筒之间,弹性压力装置设置在支撑框架与定子壳体向心外表面之间,定子动力机构与转子动力机构组成随动式驱动电机,所述永磁体和转子矽钢片围绕转筒转轴均匀分布。1. a follow-up drive motor on a permanent magnet direct drive ball mill, comprising a ball mill drum, a stator power mechanism, a rotor power mechanism, a support frame, a rotating drum, it is characterized in that: the stator power mechanism is connected in the direction of the support frame. Inside the core, the stator power mechanism includes stator silicon steel sheets, coils, stator casings, guide wheels, and elastic pressure devices. The rotor power mechanism includes rotor silicon steel sheets, permanent magnets, and magnetic isolation aluminum plates. The rotor power mechanism is arranged outside the drum. The ball mill drum is arranged on the inner surface of the drum, the guide wheel is arranged between the inner surface of the stator housing and the drum, the elastic pressure device is arranged between the support frame and the outer surface of the stator shell, and the stator power mechanism is connected with The rotor power mechanism constitutes a follow-up drive motor, and the permanent magnets and rotor silicon steel sheets are evenly distributed around the rotating shaft of the drum. 2.根据权利要求1所述的一种永磁直驱球磨机上的随动式驱动电机,其特征在于:所述支撑框架采用拼接的方式组装,支撑框架通过螺接安装在与大地接触的预埋好的基础上。支撑框架内侧沿圆周焊接若干个凸台,凹台上螺接若干个小支撑件。2. The follow-up drive motor on a permanent magnet direct drive ball mill according to claim 1, characterized in that: the support frame is assembled by splicing, and the support frame is mounted on a pre-contact with the ground by screwing. Buried foundation. Several bosses are welded along the circumference on the inner side of the support frame, and several small supports are screwed on the concave platform. 3.根据权利要求1所述的一种永磁直驱球磨机上的随动式驱动电机,其特征在于:所述弹性压力装置包括连接杆、固定丝杆、调节螺母、压力弹簧。定子壳体上设置有凹腔,连接杆的下端穿过小支撑件插入凹腔内固定,连接杆上端的固定连接盘设置有过孔,有多个固定丝杆穿过连接盘过孔与小支撑架螺接,所述固定丝杆上方装有调节螺母,调节螺母与连接杆的固定连接盘之间设置有压力弹簧,调节螺母起调节驱动电机径向压力的作用。3 . The follow-up drive motor on a permanent magnet direct drive ball mill according to claim 1 , wherein the elastic pressure device comprises a connecting rod, a fixed screw rod, an adjusting nut and a pressure spring. 4 . The stator housing is provided with a cavity, the lower end of the connecting rod is inserted into the cavity through the small support to be fixed, the fixed connecting plate at the upper end of the connecting rod is provided with a through hole, and a plurality of fixed screw rods pass through the through hole of the connecting plate and the small hole. The support frame is screwed, an adjusting nut is installed above the fixed screw rod, a pressure spring is arranged between the adjusting nut and the fixed connecting plate of the connecting rod, and the adjusting nut plays the role of adjusting the radial pressure of the driving motor. 4.根据权利要求3所述的一种永磁直驱球磨机上的随动式驱动电机,其特征在于:所述弹性压力装置的装配位置优先装配在支撑框架圆周表面,压力弹簧优先选用碟簧。4. A follow-up drive motor on a permanent magnet direct drive ball mill according to claim 3, characterized in that: the assembling position of the elastic pressure device is preferentially assembled on the circumferential surface of the support frame, and the pressure spring is preferably a disc spring . 5.根据权利要求3所述的一种永磁直驱球磨机上的随动式驱动电机,其特征在于:所述弹性压力装置安装在定子壳体与支撑框架之间并且不影响定子动力机构拆卸即可,可安装在定子壳体上方的中部,也可安装在定子壳体上方的两侧,即所述弹性压力装置结构在每一个定子壳体的向心外侧与支撑框架之内设置,可分布在支撑框架内圆周的不同部位。5. A follow-up drive motor on a permanent magnet direct drive ball mill according to claim 3, wherein the elastic pressure device is installed between the stator housing and the support frame and does not affect the disassembly of the stator power mechanism That is, it can be installed in the middle part above the stator casing, or can be installed on both sides above the stator casing, that is, the elastic pressure device structure is arranged on the centripetal outer side of each stator casing and inside the supporting frame, which can be Distributed in different parts of the inner circumference of the support frame. 6.根据权利要求1所述的一种永磁直驱球磨机上的随动式驱动电机,其特征在于:所述定子壳体的向心内表面固定有导轮固定座,导轮安装在导轮固定座上,导轮与转筒外表面接触,单个所述定子动力机构设置有四个所述的导轮,导轮设置在随动式驱动电机底盘向心的四个角位置。6. A follow-up drive motor on a permanent magnet direct drive ball mill according to claim 1, characterized in that: a guide wheel fixing seat is fixed on the centripetal inner surface of the stator housing, and the guide wheel is installed on the guide wheel On the wheel fixing seat, the guide wheels are in contact with the outer surface of the drum, and the single stator power mechanism is provided with four guide wheels, and the guide wheels are arranged at four centripetal angular positions of the follower drive motor chassis. 7.根据权利要求1所述的一种永磁直驱球磨机上的随动式驱动电机,其特征在于:所述随动式驱动电机采用模块化设计,随动式驱动电机的定子动力机构独立的安装在转筒圆周上,有各自独立的扇形块壳体机械结构、矽钢片、水冷管道、线圈、测试系统以及独立的弹性压力装置。7. The follow-up drive motor on a permanent magnet direct drive ball mill according to claim 1, wherein the follow-up drive motor adopts a modular design, and the stator power mechanism of the follow-up drive motor is independent It is installed on the circumference of the drum, and has its own independent sector block shell mechanical structure, silicon steel sheet, water cooling pipeline, coil, test system and independent elastic pressure device. 8.根据权利要求1所述的一种永磁直驱球磨机上的随动式驱动电机,其特征在于:所述支撑框架沿着圆周方向,在每一个所述随动式驱动电机的周向两端要固定设置挡块,挡块与定子动力机构的接触面装有橡胶块,限制定子动力机构的活动范围,在驱动电机正转或反转时阻挡驱动电机顺圆周方向跑动的扭力,保护相邻的定子矽钢片不会发生碰撞造成形变。8. A follow-up drive motor on a permanent magnet direct drive ball mill according to claim 1, wherein the support frame is along the circumferential direction, and in the circumferential direction of each of the follow-up drive motors Blocks should be fixed at both ends, and the contact surface between the block and the stator power mechanism is equipped with rubber blocks to limit the movement range of the stator power mechanism, and block the torsion force of the drive motor running in the circumferential direction when the drive motor is rotating forward or reversely. Protect the adjacent stator silicon steel sheets from being deformed due to collision. 9.根据权利要求3所述的一种永磁直驱球磨机上的随动式驱动电机,其特征在于:每个定子模块的定子冲片分别叠压与紧固,利用弧形定子压圈进行压紧与固定,采用小跨距线圈嵌放入定子槽内,同时做好定子绕组绝缘和绑扎处理,将制作好的定子模块整体浸漆处理与烘干,完成每个模块的制作与封装,将每个定子模块安装固定在扇形定子壳体上,加上导轮与弹性压力装置,分布安装在支撑框架中,与转子动力机构组成随动式驱动电机,分别或整体调试与运行。9 . The follow-up drive motor on a permanent magnet direct drive ball mill according to claim 3 , wherein: the stator punching sheets of each stator module are laminated and fastened respectively, and an arc-shaped stator pressing ring is used to carry out Press and fix, use small-span coils to be embedded in the stator slots, and at the same time do a good job of insulating and binding the stator windings, dipping and drying the finished stator module as a whole, and complete the production and packaging of each module. Each stator module is installed and fixed on the fan-shaped stator housing, and the guide wheel and the elastic pressure device are added, which are distributed and installed in the support frame, and the rotor power mechanism forms a follow-up drive motor, which can be debugged and operated separately or as a whole.
CN202111381234.1A 2021-11-20 2021-11-20 Servo type driving motor on permanent magnet direct-drive ball mill Pending CN113937973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111381234.1A CN113937973A (en) 2021-11-20 2021-11-20 Servo type driving motor on permanent magnet direct-drive ball mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111381234.1A CN113937973A (en) 2021-11-20 2021-11-20 Servo type driving motor on permanent magnet direct-drive ball mill

Publications (1)

Publication Number Publication Date
CN113937973A true CN113937973A (en) 2022-01-14

Family

ID=79287150

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111381234.1A Pending CN113937973A (en) 2021-11-20 2021-11-20 Servo type driving motor on permanent magnet direct-drive ball mill

Country Status (1)

Country Link
CN (1) CN113937973A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115610002A (en) * 2022-10-10 2023-01-17 山东京御堂制药有限公司 A powder compacting device
CN116633075A (en) * 2023-06-05 2023-08-22 江苏海拓宾未来工业科技集团有限公司 High-speed permanent magnet motor of air suspension centrifugal blower and working method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112865462A (en) * 2021-01-28 2021-05-28 河南全新机电设备有限公司 Permanent magnet synchronous motor direct-drive energy-saving ball mill
CN112871323A (en) * 2021-02-03 2021-06-01 河南全新机电设备有限公司 Permanent magnet motor direct-drive vertical mill with vibration damping mechanism
CN112871324A (en) * 2021-01-28 2021-06-01 河南全新机电设备有限公司 Permanent magnet motor direct-drive vertical mill
CN113634332A (en) * 2021-07-28 2021-11-12 河南全新机电设备有限公司 Connecting device for direct-drive motor stator and stator support on ball mill
CN216356408U (en) * 2021-11-20 2022-04-19 河南全新机电设备有限公司 Servo type driving motor on permanent magnet direct-drive ball mill

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112865462A (en) * 2021-01-28 2021-05-28 河南全新机电设备有限公司 Permanent magnet synchronous motor direct-drive energy-saving ball mill
CN112871324A (en) * 2021-01-28 2021-06-01 河南全新机电设备有限公司 Permanent magnet motor direct-drive vertical mill
CN112871323A (en) * 2021-02-03 2021-06-01 河南全新机电设备有限公司 Permanent magnet motor direct-drive vertical mill with vibration damping mechanism
CN113634332A (en) * 2021-07-28 2021-11-12 河南全新机电设备有限公司 Connecting device for direct-drive motor stator and stator support on ball mill
CN216356408U (en) * 2021-11-20 2022-04-19 河南全新机电设备有限公司 Servo type driving motor on permanent magnet direct-drive ball mill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115610002A (en) * 2022-10-10 2023-01-17 山东京御堂制药有限公司 A powder compacting device
CN116633075A (en) * 2023-06-05 2023-08-22 江苏海拓宾未来工业科技集团有限公司 High-speed permanent magnet motor of air suspension centrifugal blower and working method thereof
CN116633075B (en) * 2023-06-05 2024-05-14 江苏海拓宾未来工业科技集团有限公司 A high-speed permanent magnet motor for an air suspension centrifugal blower and a working method thereof

Similar Documents

Publication Publication Date Title
CN216356408U (en) Servo type driving motor on permanent magnet direct-drive ball mill
CN113937973A (en) Servo type driving motor on permanent magnet direct-drive ball mill
CN112871323B (en) Permanent magnet motor direct-drive vertical mill with vibration damping mechanism
CN216356410U (en) Permanent magnet synchronous motor direct-drive energy-saving ball mill
NZ579065A (en) Stator arrangement of a generator for a wind turbine, were stator segments are radially surrounded by a rotor and the segments are mounted via rigid connections to a shaft
CN102716780B (en) Combined stator/rotor permanent-magnet outer rotor motor directly-driven vertical mill millstone
CN1639949A (en) Torque motor having a segment design
CN102716785B (en) Direct driving vertical mill millstone for combined fixed rotor permanent-magnet electric motor
CN112871324A (en) Permanent magnet motor direct-drive vertical mill
CN207265820U (en) Fixing bracket for permanent magnet synchronous motor nonshared control unit
CN102720013A (en) Direct drive structure of sewing machine
MX2013008584A (en) Tube mill.
CN103997171A (en) Novel birotor motor
CN106130290A (en) Annular permanent magnet gearless ball mill direct driving motor
CN204810084U (en) Totally closed horizontal birotor power generating equipment
WO2021027560A1 (en) Vibration motor
CN108326213A (en) The Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor directly drives
CN218339928U (en) Permanent magnet motor direct-drive vertical mill with bidirectional load buffer device
CN216356409U (en) Modular permanent magnet direct drive motor used on ball mill
CN208554369U (en) The kibbler roll that no frame permanent magnet synchronous motor directly drives
CN218162182U (en) Modularized motor for permanent-magnet direct-drive ball mill
CN105162299A (en) Fully-enclosed horizontal dual-rotor power generation equipment
CN208094378U (en) The screw washer that rimless combination type permanent-magnet synchronous motor directly drives
CN115498839A (en) Modularized motor for permanent-magnet direct-drive ball mill
CN208656597U (en) A kind of full-automatic motor rotor positioning assembly machine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination