CN218162182U

CN218162182U - Modularized motor for permanent-magnet direct-drive ball mill

Info

Publication number: CN218162182U
Application number: CN202222710155.7U
Authority: CN
Inventors: 张炳义; 尚勤贵; 冯桂宏; 王帅; 张成功; 尚金铎; 尚金鸽; 高敏; 陈高敏
Original assignee: Henan Quanxin Liquid Start Up Equipment Co ltd
Current assignee: Henan Quanxin Liquid Start Up Equipment Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2022-12-27
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a permanent magnetism directly drives modularization motor of using on ball mill, including ball mill barrel, modularization motor braced frame, the braced frame that the modularization motor on the ball mill was directly driven to the permanent magnetism divides two lamella installations from top to bottom, and the modularization motor is from the frame periphery suit of entad, can switch on the operation after spacing. When the rotary drum on the ball mill eccentrically rotates, the fluctuation generated at the eccentric part is transmitted to the modular motor through the guide wheel device, so that the modular motor is driven to radially follow up, the chamber sweeping phenomenon of the stator core and the rotor core can not occur in the follow-up process, and the guide wheel plays roles of indirectly controlling the gap and protecting the modular motor.

Description

Modularized motor for permanent-magnet direct-drive ball mill

Technical Field

The utility model relates to a ball mill drive technical field specifically is a permanent magnetism directly drives modularization motor that ball mill used.

Background

The ball mill is the key equipment for crushing the materials after the materials are crushed. It is widely used in the production industries of cement, silicate products, novel building materials, refractory materials, chemical fertilizers, black and white nonferrous metal ore dressing, glass ceramics and the like to carry out dry or wet grinding on various ores and other grindable materials.

The Chinese patent application number is 202122851968.3, and discloses a modular motor for a permanent magnet direct-drive ball mill, which comprises a ball mill roller, the modular motor, a rotor power mechanism, a supporting frame and a limiting device. The modularized motor is movably arranged on the centripetal inner side of a supporting frame and comprises a stator silicon steel sheet, a coil, a stator shell, a guide wheel and an elastic pressure device; the arrangement of the guide wheel of the modular motor in the patent keeps the air gap between the stator and the rotor constant, improves the production efficiency and saves energy; however, in practice, the rolling friction coefficient between the surface of the guide wheel of the modular motor and the rotary drum of the ball mill is too large, the surface of the guide wheel and a track in contact with the surface of the guide wheel are seriously abraded, and the service life is reduced; the ball mill driving motor structure is also provided with an elastic resistance device, the elastic resistance device has poor effect, and the ball mill driving motor structure has the problems of complex assembly and high production cost; in order to solve the technical problem, a modularized motor for a permanent magnet direct-drive ball mill is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, a modularization motor that permanent magnetism directly drives ball mill and uses is provided, the reasonable compactness of overall structure design, when improving production efficiency, the serious problem of wearing and tearing between guide pulley device and the rotary drum has been solved, prolonged equipment life, the stator, the air gap between the rotor designs for a short time, the use amount of permanent magnet has been reduced, and then manufacturing cost has been reduced, the whole assembly complicated problem in the background art also can be solved to the convenient assembling process of modularization motor.

In order to achieve the above object, the utility model provides a following technical scheme: a modularized motor for a permanent-magnet direct-drive ball mill comprises a ball mill roller, a rotary drum, a rotor power mechanism, a modularized motor, a supporting frame and a limiting device, wherein the rotor power mechanism is arranged on the outer surface of the rotary drum; the limiting device is arranged on the supporting frame and the modular motor and used for limiting the axial, circumferential and radial moving ranges of the modular motor; modularization motor includes stator coil, stator blade of silicon steel, motor casing, and motor casing comprises modularization motor casing backplate and modularization motor casing side board, upper and lower support connection board between stator blade of silicon steel and the modularization motor casing backplate, modularization motor casing backplate internal surface laminating braced frame surface.

Furthermore, an adjustable guide wheel device is installed between the modularized motor shell back plate and the rotary drum and comprises a guide wheel device top back plate, a guide wheel support, a pin shaft and a guide wheel, the guide wheel device top back plate is arranged on the outer surface of the modularized motor shell back plate, a square hole corresponding to the guide wheel support is formed in the modularized motor shell back plate, the guide wheel support centripetally corresponds to a hollowed-out position of the supporting frame through the square hole, the guide wheel device top back plate at the upper end of the guide wheel support is in threaded connection with the modularized motor shell back plate through an adjusting screw, a gasket is additionally arranged between the inner side of the guide wheel device top back plate at the upper end of the guide wheel support and the outer side of the modularized motor shell back plate, the gap between the rotor and the stator is determined by increasing and decreasing the gasket, the guide wheel is installed on the guide wheel support through the pin shaft, and the guide wheel penetrates through the supporting frame to be in rolling contact with the outer surface of the rotary drum.

Further, the guide wheel device is arranged on the outer side of the side panel of the modular motor shell, and a guide wheel support of the guide wheel device is in threaded connection with the side panel of the modular motor shell through an adjusting screw.

Further, stop device includes stop screw and sleeve, and the welding of the screw cap lower surface of stop screw has circularly to block the piece, and circularly blocks to separate to have the distance between piece and the modularization motor casing backplate, and the sleeve overlaps on the lead screw of stop screw, and the sleeve setting is in the circular via hole of modularization motor casing backplate, and the sleeve up end blocks terminal surface contact under the piece with circularly, terminal surface and gasket crimping at the braced frame surface under the sleeve, and the stop screw spiro union is in the screw thread on braced frame. The limiting device can also be arranged between the modular motor side panel and the frame side.

Furthermore, the supporting frame is set to be a circular structure, the supporting frame is a circular supporting frame, the modularized motor shell back plate is set to be a fan-shaped structure, and the modularized motor is a fan-shaped modularized motor.

Furthermore, the supporting frame is of a polygonal structure, the supporting frame is of a polygonal supporting frame, the modularized motor shell back plate is of a cuboid straight plate structure, and the modularized motor is a straight plate-shaped modularized motor.

Furthermore, the ball mill also comprises a fan, wherein the fan is connected with a modular motor on the ball mill through a ventilation pipe, and the part of the ventilation pipe connected with the modular motor adopts a hose structure.

Furthermore, braced frame is to the inboard extension board that has, punches on the extension board of entailing of circumference welded, and the spiro union has the side deep bead on the extension board, and the annular gap is left with the rotary drum surface to the side deep bead, and the inside amount of wind malleation of frame blows out from the annular gap, blocks inside external dust entering motor.

Furthermore, each stator module of the modular motor is provided with a support connecting plate, the upper end of the support connecting plate is welded and fixed on the inner surface of the back plate of the modular motor shell, the lower end of the support connecting plate is welded with the outer surface of the silicon steel sheet of the stator, and the axial side walls of the upper support connecting plate and the lower support connecting plate are provided with ventilation holes.

Further, the inner surface of the back plate of the modular motor shell and the outer surface of the supporting frame are in a free fit but unfixed form.

Compared with the prior art, the beneficial effects of the utility model are that:

the modularized motor can adopt a structure without guide wheels or a structure with guide wheels; the centripetal force borne by the modular motor is borne by the supporting frame, the friction force between the guide wheel and the rotary drum is reduced, and the abrasion degree is reduced; the inner surface of the back plate of the modularized motor shell and the outer surface of the supporting frame are freely attached but not fixed, so that the centripetal force borne by the modularized motor is borne by the supporting frame, and the problem of serious abrasion between a guide wheel device and a rotary drum is solved; if the rotary drum on the ball mill rotates under a perfect circle track, the size of an air gap between the stator and the rotor is determined by the fit degree of the back plate of the modularized motor shell and the supporting frame, and at the moment, the guide wheel and the rotary drum can be in view of the size of the gap between the stator and the rotor without contact; if the rotating drum has the eccentric rotation condition, the fluctuation generated at the eccentric position is transmitted to the modular motor through the guide wheel device, so that the modular motor is driven to perform radial follow-up, the chamber sweeping phenomenon of a stator and a rotor core is avoided in the process, and the guide wheel plays roles in indirectly controlling the gap and protecting the modular motor; the modularized motor is convenient to process, install and maintain, and the air gap between the stator and the rotor can be adjusted on site very small, so that the magnetic attraction of the permanent magnet is increased, the magnetic quantity is reduced during design, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic view of the structure of the circular support frame without guide wheel of the present invention;

FIG. 2 is a schematic view of the structure of the polygonal supporting frame without the guide wheel of the present invention;

FIG. 3 is a schematic view of the overall assembly structure of the round supporting frame with guide wheels of the present invention;

FIG. 4 is a schematic view of a first structure of the polygonal supporting frame with guide wheels according to the present invention;

FIG. 5 is a schematic view of a second structure of the polygonal supporting frame with guide wheels according to the present invention;

FIG. 6 is a schematic structural view of a rotor power mechanism and a rotary drum according to the present invention;

FIG. 7 is a schematic view of the structure of the circular support frame of the present invention;

FIG. 8 is a schematic view of the polygonal supporting frame structure of the present invention;

fig. 9 is a schematic structural view of the guide-pulley-free fan-shaped modular motor of the present invention;

fig. 10 is a schematic structural view of the fan-shaped modular motor with guide wheels of the present invention;

fig. 11 is a schematic structural view of the guide-wheel-free straight-plate-shaped modular motor of the present invention;

fig. 12 and 13 are schematic structural views of the guide-wheel-containing straight-plate-shaped modular motor of the present invention;

fig. 14 is a schematic structural view of the limiting device of the present invention;

fig. 15 is a schematic view of the sectional structure of the limiting device of the present invention;

fig. 16 is the overall assembly structure schematic diagram of the four-wheel modular motor of the present invention.

In the figure: 1 ball mill roller, 2 revolving drums, 3 rotor power mechanisms, 4 modular motors, 5 round supporting frames, 6 polygonal supporting frames, 7 limiting devices, 8 connecting screws, 9 rotor silicon steel sheets, 10 permanent magnets, 11 magnetic isolation aluminum plates, 12 supporting frames, 13 side wind shields, 14 stator silicon steel sheets, 15 coils, 16 upper and lower supporting connecting plates, 17 modular motor shell back plates, 18 vent holes, 19 sector modular motors, 20 straight plate modular motors, 21 guide wheels, 22 pin shafts, 23 guide wheel supports, 24 guide wheel device top back plates, 25 adjusting screws, 26 limiting screws, 27 sleeves, 28 fans, 29 ventilation pipes, 30 four-wheel structures and 31 modular motor shell side plates.

Detailed Description

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-16, the present invention provides a technical solution: the utility model provides a modularization motor that permanent magnetism directly drives ball mill and uses, the discharge end at ball mill cylinder 1 is equipped with the ring flange of being connected with rotary drum T template, also be the ring flange of former ball mill gear wheel, they are by the mutual spiro union of connecting screw 8, rotary drum 2 suit is in the outside of ball mill cylinder, in order to guarantee that the rotary drum surface can bear the non-deformation behind the pressure that comes from guide pulley 21, rotary drum 2 needs the casting to be processed into double-deck structural style, for the ease of transportation, the rotary drum structural design is upper and lower semicircle mosaic structure, super large diameter type ball mill also can adopt trisection mosaic structure, rotary drum surface suit separates magnetic aluminum plate 11, separate magnetic aluminum plate periphery spiro union rotor silicon steel sheet, inlay permanent magnet 10 between rotor silicon steel sheet 9 and the rotor silicon steel sheet, rotor power unit 3 and rotary drum spiro union constitute integrative structure on ball mill cylinder and are supported and rotatory work by the axle bush system at ball mill feeding and ejection of compact both ends, modularization motor 4 constitutes modularization driving motor with rotor power unit jointly.

In order to consider the stability and rigidity strength of the support frame to the support force of the modular motor, support frame structures are adopted on two axial sides of the modular motor, the support frame is a hollow support frame with high strength, the support frame can be a circular support frame 5 structure, the support frame can also be a polygonal support frame 6 structure, a connecting frame 12 is welded on the inner side of the support frame along the circumference, the bonding area of the outer circumferential surface of the support frame is large, and the rigidity force from the modular motor and a guide wheel support is borne; the centripetal extension plate is welded along the circumference on the centripetal inner side of the support frame, a plurality of side wind shields 13 are screwed on the extension plate, an annular gap is formed between the side wind shields and the surface of the rotary drum, and the wind blown by the fan is blown out from the gap, so that the influence of floating dust and the like of the external environment on a motor coil is prevented; after the whole assembly of braced frame is concatenation from top to bottom, the foundation screw spiro union on rethread upper and lower support frame and the ground, braced frame adopts the mode of concatenation, easy to assemble, dismantlement and transportation.

The side wind shield is composed of a plurality of baffles, and the connection mode is screw connection, so that when the air gap between the stator and the rotor of each modular motor is observed, the size of the air gap between the stator and the rotor can be observed only by detaching the baffles corresponding to each module, and an aiming eye hole can be arranged on the baffles to observe the air gap between the stator and the rotor.

The modularization motor includes the stator coil, stator blade of silicon steel, motor casing comprises modularization motor casing backplate and modularization motor casing side board, upper and lower support connection board between stator blade of silicon steel and the modularization motor casing backplate, the stator blade of silicon steel 14 of modularization motor is folded respectively by the punching sheet and is pressed and the fastening, utilize arc stator clamping ring to compress tightly and fix, coil 15 adopts little span mode, inlay it and put into the stator inslot, stator winding is insulating and ligature simultaneously done, stator winding three-phase outgoing line leads to on the terminal box in-connection terminal on the modularization motor backplate. The manufactured stator modules are integrally subjected to paint dipping treatment and drying to complete the manufacturing and packaging of each module, the upper ends of upper and lower support connecting plates 16 of each stator module are welded and fixed on the inner surface of a back plate 17 of a motor shell of the modular motor, the lower ends of the upper and lower support connecting plates are welded with the outer surface of a silicon steel sheet of the stator, and the axial side walls of the upper and lower support connecting plates are provided with vent holes 18, so that the heat of a stator core of the modular motor can be conveniently circulated.

In order to strengthen the strength of the modularized motor shell back plate 17, the shell back plate is formed by welding an upper plate, a lower plate and a middle support device, the structure composition of the modularized motor shell is determined according to the structure of a support frame, when the support frame is of a circular structure, the modularized motor shell back plate structure is of a fan-shaped structure, and the modularized motor is called as a fan-shaped modularized motor 19; when the supporting frame is a polygonal structure, the back plate structure of the modular motor housing is a rectangular straight plate structure, and the modular motor is called as a straight plate modular motor 20.

The outer surface of the supporting frame and the inner surface of the shell back plate are in free fit but not fixed, so that the centripetal force borne by the modular motor is borne by the supporting frame mainly, and the guide wheel bears a small amount of weight, thereby reducing the friction force between the guide wheel and the track.

When the rotary drum is of a perfect circle structure and the rigidity of the supporting frame is strong enough, the modularized motor can also adopt a structure without guide wheels, and the size of an air gap between the stator and the rotor is adjusted by adding a gasket between the back plate of the modularized motor shell and the supporting frame, so that the motor can normally run; but because the rotary drum can appear in the ball mill cylinder diameter greatly in the actual processing not be the perfect circle structure, just adopt the modularization motor structure that has the guide pulley this moment, the characterized in that of first kind of guide pulley device: an adjustable guide wheel device is installed between a back plate and a rotary drum of the modularized motor shell, a gap between the guide wheel and the rotary drum is set to be a minimum distance and is in contact rolling without bearing pressure, and the guide wheel plays a role in controlling the gap and buffering radial force and is called as a back plate adjusting guide wheel device. The second guide wheel device is characterized in that: an adjustable guide wheel device is installed between the side panel of the modular motor shell and the rotary drum, and the adjustable guide wheel device is called a side surface adjusting guide wheel device.

The back plate adjusting guide wheel device comprises a guide wheel 21, a pin 22, a guide wheel bracket 23 and a top back plate 24 of the guide wheel device; the top back plate of the guide wheel device is connected with the modular motor shell back plate through an adjusting screw 25 on a guide wheel support, so that the inner surface of the top back plate of the guide wheel device is attached to the outer surface of the modular motor shell back plate, when an air gap between a stator and a rotor does not meet the standard, the guide wheel support screw can be screwed, a gasket is added and subtracted between the top back plate of the guide wheel device and the outer surface of the modular motor shell back plate to adjust the distance between the guide wheel device and a rotary drum, two guide wheels are arranged on one modular motor, the left side and the right side of the modular motor are respectively provided with one guide wheel, and the guide wheels are respectively sleeved and placed in the centers of the hollow positions on the two sides of the supporting frame; one modular motor is generally provided with two guide wheel devices, but when the diameter of the ball mill roller is too large, the capacity of the modular motor is increased, and a four-guide wheel structure, namely a four-wheel structure 30, is designed.

The side surface adjusting guide wheel device comprises a guide wheel 21, a pin 22 and a guide wheel bracket 23; the medial surface of guide wheel bracket of guide wheel device passes through adjusting screw 25 with the lateral surface of modularization motor casing side board 31 to be connected, makes the medial surface of guide wheel bracket and the laminating of the lateral surface of modularization motor casing side board, when the air gap between stator, the rotor is nonconforming with the standard, can twist the adjusting screw who moves guide wheel bracket, and then adjusts the distance between guide wheel device and the rotary drum, be provided with four guide pulleys on the modularization motor, the left and right sides respectively sets up two.

When the guide wheel device is a back plate adjusting guide wheel device, a square hole of a guide wheel support is formed in the back plate of the shell of the modular motor, the guide wheel support is centripetally and correspondingly mounted with the hollowed part of the supporting frame through the square hole, a guide wheel in the guide wheel device is in rolling contact with the surface of a rotary drum, if the rotary drum on the ball mill rotates under a perfect circle track, a minimum distance is arranged between the guide wheel and the rotary drum, the guide wheel and the rotary drum are in contact rolling without bearing pressure, and the friction force between the guide wheel and the outer surface of the rotary drum is greatly reduced; if the rotating drum rotates eccentrically, the force generated at the maximum eccentric position is transmitted to the modular motor through the support of the guide wheel, so that the modular motor is released in a radial follow-up manner, and the chamber sweeping phenomenon of a stator core and a rotor core is avoided in the releasing process; the guide wheel plays a role in setting a gap and buffering a radial force, and further plays a role in preventing the raceway from being damaged; when the guide wheel device is seriously abraded or a bearing is replaced, the guide wheel device can be conveniently and independently detached, maintained and repaired on the basis of not detaching the modular motor structure.

The radial follow-up of the driving motor is related to the deflection of the peak of the rotating drum, the deflection of the peak passes through the driving motor, and the driving motor is restored to the original state after the follow-up movement; when the modular motor is initially installed, if shaking occurs between the centripetal inner surface of the back plate of the modular motor shell and the outer surface of the supporting frame, the modular motor shell and the supporting frame cannot be stably attached, at the moment, the limiting screw can be adjusted, the base plate is added on the lower end face of the sleeve and used for stabilizing the pressure of the back plate of the modular motor on the supporting frame, and the stability of the modular motor can be ensured; the thickness of the cushion plate can be increased or decreased to control the distance between the back plate of the modularized motor shell and the supporting frame, so that the size of an air gap between the stator and the rotor is controlled, the standard air gap is set to prevent the occurrence of a chamber sweeping phenomenon, and the aim of not damaging the motor is fulfilled; when the fit between the centripetal inner surface of the back plate of the modular motor shell and the outer surface of the supporting frame is not tight in the later period, the modular motor shell can be treated by the method. When the parts except the gasket between the centripetal inner surface of the back plate of the modular motor shell and the outer surface of the supporting frame are not tightly attached, a flexible sealing strip is bonded between the parts for sealing, and external floating dust cannot enter the inside, so that the insulation of the coil cannot be influenced.

The limiting device 7 consists of a limiting screw 26 and a sleeve 27, a circular blocking sheet is fixedly welded on the lower surface of a limiting screw cap, and a certain distance exists between the blocking sheet and the back plate of the modularized motor shell; the periphery of a screw rod of the limiting screw is sleeved with a sleeve, the sleeve is arranged in a circular through hole of the modular motor back plate, the upper end face of the sleeve is in contact with the lower end face of the blocking piece, and the lower end face of the sleeve is in compression joint with the gasket and then is in compression joint with the outer surface of the supporting frame; stop device spiro union is in the screw thread on braced frame, stop device restriction modularization motor's axial, circumference, activity ranges such as radial, block the torsion that modularization motor moved along the circumferencial direction when modularization motor corotation or reversal, it can not bump and cause deformation to protect adjacent stator silicon steel sheet, when the rotary drum has eccentric rotatory situation, let the power that eccentric department produced, on guide pulley supports conduction to modularization motor, make modularization motor do radial follow-up release, the circular piece that blocks of spacing screw this moment can be unlikely to modularization motor and break away from the frame at certain radial within range with its restriction. The limiting device can be another structure, and can be arranged at the position of the side panel 31 of the modular motor shell as long as the limiting device has a limiting function. Either one of them is selected.

The fan 28 is placed in an environment far away from the site of the ball mill with floating dust, a clean air source is connected with the modular motor on the ball mill through the air blower and the ventilation pipe 29, and the part of the ventilation pipe connected with the modular motor adopts a hose structure, so that the ventilation pipe does not interfere with the movement of the modular motor and is not damaged by the movement of the modular motor; inside clean wind regime blowed in the modularization motor through the tuber pipe, the circumference gap malleation between follow side deep bead and the cylinder was bloied out, had both accomplished the cooling of the inside iron core of driving motor and coil and accomplished the sealing of driving motor to external dust, water, iron element crystalline grain again.

The modularized motor shell back plate is provided with a power supply, a temperature gap testing system junction box and other system junction boxes, all modularized motors can be conveniently connected in parallel on site, a parallel circuit is arranged on a bridge wire box on the outer side surface of the frame and connected with a frequency converter, the frequency converter supplies power to drive the permanent magnet direct drive motor and the ball mill to operate after programming, and only part of the modularized motors can be driven to make the ball mill jigger or operate.

A frequency converter is adopted to control and drive a stator winding of the modular motor, the stator winding consists of a plurality of short-pitch independent sub-windings and is arranged on the stator, three-phase wiring terminals led out by the sub-windings are respectively connected with terminals in a wiring box arranged on a machine shell, and terminal output ends of the wiring box connected with the sub-windings are led out to be respectively connected with the frequency converter; in order to utilize a part of modular motors to turn a vehicle and increase or decrease load capacity and cut off the convenience of a part of modular motor power supplies at any time, low-voltage power supply is adopted in general design; high voltage power supply design can also be adopted; the modularized motor can be produced in a streamlined mode in a factory, transported, assembled on site and convenient to replace subsequently.

The foregoing shows and describes the general principles of the present invention, with its principal features and advantages, and further, various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a modularization motor that permanent magnetism directly drives ball mill and uses, includes ball mill cylinder, rotary drum, rotor power unit, modularization motor, braced frame and stop device, its characterized in that: the rotor power mechanism is arranged on the outer surface of the rotary drum, the rotary drum is in threaded connection with the outer end surface of the roller of the ball mill through a connecting plate, and the rotor power mechanism comprises a rotor silicon steel sheet, a permanent magnet and a magnetic isolation aluminum plate; the limiting device is arranged on the supporting frame and the modular motor and used for limiting the axial, circumferential and radial moving ranges of the modular motor; the modularization motor includes stator coil, stator blade of silicon steel, motor casing, and motor casing comprises modularization motor casing backplate (17) and modularization motor casing side board (31), the upper and lower support connection board between stator blade of silicon steel and the modularization motor casing backplate, the laminating braced frame surface of modularization motor casing backplate internal surface.

2. The modular motor for a permanent magnet direct drive ball mill as claimed in claim 1, wherein: an adjustable guide wheel device is arranged between the back plate of the modularized motor shell and the rotary drum, and the guide wheel device comprises a guide wheel device top back plate, a guide wheel bracket, a pin shaft, a guide wheel and a bearing; guide wheel device top backplate sets up in modularization motor casing backplate surface, it has the square hole corresponding with guide wheel support to open on the modularization motor casing backplate, guide wheel support centripetally corresponds with braced frame's fretwork department through the square hole, guide wheel device top backplate of guide wheel support upper end passes through adjusting screw and modularization motor casing backplate spiro union, the guide pulley passes through the round pin axle and installs on guide wheel support, the guide pulley passes braced frame and rotary drum surface rolling contact.

3. The modular motor for a permanent magnet direct drive ball mill as claimed in claim 2, wherein: the guide wheel device is arranged on the outer side of the side panel of the modular motor shell, and a guide wheel support of the guide wheel device is in threaded connection with the side panel of the modular motor shell through an adjusting screw.

4. The modular motor for a permanent magnet direct drive ball mill as claimed in claim 1, wherein: stop device includes stop screw and sleeve, and the welding has circularly to block the piece under the cap screw of stop screw, and circular blocking is equipped with the distance between piece and the modularization motor casing backplate, and the sleeve overlaps on stop screw's lead screw, and the sleeve setting is in the circular via hole of modularization motor casing backplate, and the sleeve up end blocks terminal surface contact under the piece with circular, terminal surface and gasket crimping at the braced frame surface down, and the stop screw spiro union is in the screw thread on braced frame.

5. The modular motor for a permanent magnet direct drive ball mill of claim 1, wherein: the support frame is set to be of a circular structure, the support frame is a circular support frame, the modularized motor shell back plate is set to be of a fan-shaped structure, and the modularized motor is a fan-shaped modularized motor.

6. The modular motor for a permanent magnet direct drive ball mill as claimed in claim 1, wherein: the support frame is of a polygonal structure, the support frame is of a polygonal support frame, the modularized motor shell back plate is of a cuboid straight plate structure, and the modularized motor is a straight plate-shaped modularized motor.

7. The modular motor for a permanent magnet direct drive ball mill as claimed in claim 1, wherein: the ball mill is characterized by further comprising a fan, wherein the fan is connected with a modular motor on the ball mill through a ventilation pipe, and the part, connected with the modular motor, of the ventilation pipe is of a hose structure.

8. The modular motor for a permanent magnet direct drive ball mill as claimed in claim 1, wherein: the supporting frame is characterized in that a centripetal extension plate is welded on the inner side of the supporting frame along the circumference, a side wind shield is connected to the extension plate in a threaded mode, and an annular gap is formed between the side wind shield and the surface of the rotary drum.

9. The modular motor for a permanent magnet direct drive ball mill as claimed in claim 1, wherein: the upper end of each upper and lower support connecting plate of each stator module of the modular motor is welded and fixed on the inner surface of the back plate of the modular motor shell, the lower end of each upper and lower support connecting plate is welded with the outer surface of the silicon steel sheet of the stator, and the axial side walls of the upper and lower support connecting plates are provided with ventilation holes.

10. The modular motor for a permanent magnet direct drive ball mill as set forth in any of claims 1-3, wherein: the inner surface of the back plate of the modular motor shell and the outer surface of the supporting frame are in a free fit but unfixed mode.