CN208004705U - The Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor directly drives - Google Patents

Abstract

The utility model discloses a kind of Ring Rolling Machines that rimless combination type permanent-magnet synchronous motor directly drives, the Ring Rolling Machine includes mainly axial machine for rolling ring structure, radial machine for rolling ring structure and fixed frame, the both ends that the axial direction machine for rolling ring structure and the radial machine for rolling ring structure are located at the fixed frame are opposite, and driving motor is used to drive the movement of the Ring Rolling Machine；Driving motor is rimless combination type permanent-magnet synchronous motor, including opposite rotor assembly and stator module, stator module is comprising stator winding around the secter pat being integrally formed is poured with stator core, and multiple secter pat ring cloth and/or all cloth are on rotor assembly.Using power part as the mover of motor, motor combines together the utility model with mechanical part, reduces the driving intermediate link such as gear, reduction box, simplifies type of drive and structure, improve drive efficiency, reduce the loss of the energy.

Description

The Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor directly drives

Technical field

The utility model is related to roll over ring apparatus field, and in particular to a kind of rolling that rimless combination type permanent-magnet synchronous motor directly drives Ring machine.

Background technology

Ring Rolling Machine also known as pricks ring machine, cerclage machine, staving press, is that the widely used lasso forging production of bearing industry is special Forging equipment, the annular blank rolling forming for forging upper track preforming are to make ring generate continuous local plastic to become Shape, and then realize the plastic working technique of wall thickness reduction, enlarged-diameter, cross section profile forming.Currently, the axial direction of Ring Rolling Machine, diameter Driving to roll off roller generally uses motor, triangle driving belt, reduction box and transmission gear composition, roll off roller axial And radial movement mostly uses Hydraulic Cylinder, since intermediate transmission component is more, causes power attenuation larger, transmission accuracy compared with It is low, the problems such as speed of axial, radial roll off roller mismatches.In addition, currently used for the fluid pressure type thrust on large-scale ring rolling machine The position adjustment of roller arrangement, thrust roller is completed by manual rotation leading screw；But the ring processed on the Ring Rolling Machine of large-sized numerical control Part specification difference is larger, manually adjusts labor intensity height, and inefficient utilizes hydraulic-driven axially and radially roll off roller not easy to control Son physical location, these problems cause roll over workpiece processed forming accuracy it is not high.

Therefore, above-mentioned problem also needs further to be improved optimization.

Invention content

The utility model is to overcome the problems, such as described in the above-mentioned prior art, and it is straight to provide rimless combination type permanent-magnet synchronous motor The Ring Rolling Machine of drive is filled using a kind of rimless combination type permanent-magnet synchronous motor as axial roll off roller, radial roll off roller, machine frame movement It sets, axial drive means, the direct drive unit of radial drive, is fixed on moving frame and fixed frame, this practicality The novel part that power part is connected as the rotor of motor, motor combine together with mechanical part, reduce gear, reduction box Effect is matched to carry out directly Deng driving intermediate link, while using rimless combination type permanent-magnet synchronous motor and leading screw and nut mechanism Line moves, and to accurately control with ensureing to roll over roll location, simplifies type of drive and structure, improves drive efficiency, reduce the energy Loss.

The above-mentioned purpose of the utility model is achieved by the following technical programs.

A kind of Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor directly drives, the Ring Rolling Machine include mainly axial machine for rolling ring Structure, radial machine for rolling ring structure and fixed frame, the axial direction machine for rolling ring structure and the radial machine for rolling ring structure are located at the fixation The both ends of rack are opposite；The Ring Rolling Machine also includes driving motor, and the driving motor is used to drive the fortune of the Ring Rolling Machine It is dynamic；The axial direction machine for rolling ring structure includes the axis on the machine frame movement device, moving frame and the moving frame top that are sequentially connected To mobile device, axial roll off roller is installed in the moving frame；The radial direction machine for rolling ring structure includes the core being sequentially distributed Roller, radial roll off roller and radial-movement devices, the radial-movement devices are used to control moving radially for the radial roll off roller； The machine frame movement device, the axial moving device and the radial-movement devices include moving member and are set in described Mobile base on moving member, the moving member are used to adjust the displacement of the mobile base, and the moving member is mobile lead screw With the feed screw nut with the mobile lead screw linear movement cooperation, the feed screw nut and the mobile base are fixedly mounted, institute It includes the moving frame, axial roll off roller pedestal, radial roll off roller pedestal to state mobile base；The driving motor is rimless Combination type permanent-magnet synchronous motor, including rotor assembly and stator module；Wherein, the stator module and the rotor assembly phase Right, the magnetic field that the stator module provides a rotation drives the rotor assembly rotation；The stator module is fixed on described On fixed frame, the rotor assembly is directly connected with mobile lead screw/axial direction roll off roller/radial direction roll off roller；The stator module Include stator base, stator core and stator winding, the stator winding is wound in the stator core, the stator core For multiple integrally formed secter pats, each secter pat pours entirety for one, and the stator core is located at the rotor set The axial direction and/or circumferential direction of part；Between multiple secter pats are around the axial direction of the rotor assembly and/or circumferentially in full circle ring or uniformly Every the annular spread of distribution.

The utility model provides the cross wedge rolling mill roller that rimless combination type permanent-magnet synchronous motor directly drives, and driving motor is nothing Frame combination type permanent-magnet synchronous motor, including rotor assembly and stator module；Stator module for rotor assembly provide one rotation To drive roller rotational to move, the combination of the rimless combination type permanent-magnet synchronous motor refers to motor stator component in magnetic field For modular combination form, modules can control respectively, and flexible configuration, according to circumstances, stator can continuously be combined into circular ring shape, Also it is in the arc-shaped that combination can be spaced.For the utility model using power part as the mover of motor, it is one that motor melts with mechanical part Body reduces the driving intermediate link such as gear, reduction box, while using rimless combination type permanent-magnet synchronous motor and leading screw and nut mechanism It matches effect and moves along a straight line to replace hydraulic drive cylinder, simplify type of drive and structure, improve drive efficiency, reduce The loss of the energy.For the structure of rimless combination type permanent-magnet synchronous motor without fixed frame, the external form of stator module can be with rolling-mill housing Actual conditions be combined to design, convenient for matching installation with the cross wedge rolling mill roller, have fast response time, control essence High advantage is spent, while powerful energy output can be provided.

Preferably, the rotor assembly includes rotor pedestal and magnet steel substrate, and the magnet steel substrate is to paste or be embedded in Permanent-magnet material on rotor pedestal；The rotor pedestal is connected with the roll；The magnet steel substrate ring cloth and/or it is distributed in institute week It states on rotor pedestal, and opposite with the stator winding.

Preferably, the stator module is axially arranged at least one layer of stator core along it, and every layer of stator core is equal With the magnet steel substrate Relative distribution.

Preferably, there are air gaps, the both ends of the air gap also to set respectively between the stator base and the rotor pedestal There is at least two layers sealing ring disposed in parallel；It is in hook-like configuration, the hook to have a circle in the outer ring of the sealing ring and inner ring Structure and the ontology junction of the sealing ring are embedded with the resilient balls being distributed in a ring；The free end position of the hook-like configuration In the space that multiple sealing rings are formed, and the hook-like configuration interlocks and the stator base and the rotor base successively Seat contact free.The sealing ring forms line contact sealing using cambered surface and plane contact, described for plane-plane contact For sealing ring in rotary motion, friction is smaller, and double-deck design, improves the sealing performance of the sealing ring；And it is in center Symmetrical hook-shape structure is compared shaped like streamlined structure convenient for collecting dust to achieve the effect that secondary isolation reaches sealing It is more high-quality in general seal form sealing performance.

Preferably, the axial roll off roller includes upper axial roll off roller, the lower axial roll off of tilt distribution symmetrical above and below Roller；Radial machine for rolling ring structure described in the angle face that the axis of the lower axial roll off roller and the upper axial roll off roller is formed.On Lower inclination respectively and symmetrical axial roll off roller, for the wall thickness of ring to be reduced, enlarged-diameter.

Preferably, the lower axial roll off roller is identical with the upper axial roll off roll structure, includes successively from inside to outside The both ends of roll off axis, axle sleeve and axial roll off roller bearing, the axle sleeve are connected with bearing support, the bearing support and the roll off Axis and axial roll off roller bearing are interference fit；Multiple fastening nuts, the fastening nut are also arranged on the roll off axis Position for fixing the bearing support avoids the roll off shaft rotation from moving unstable.Electricity is synchronized using rimless combination type permanent-magnet Machine and leading screw and nut mechanism, which match, to be acted on to achieve the purpose that linear motion, to accurately control with ensureing moving frame position, Simplify type of drive and structure.

Preferably, the Internal and external cycle contact free of the axle sleeve and the bearing support, the axle sleeve is in " work " type or is total Two circle ring columns being nested of axis.

Preferably, it is additionally provided with cooling device on the stator module；The cooling device includes to be circular layout described The cooling air channel on cooling water pipe and/or the stator base in stator core, the direction of the cooling air channel with described turn The Plane of rotation of sub-component is vertical.The stator module generates the magnetic field of rotation and drives the rotation of the roll, can be with production Raw a large amount of heat, influences the normal operation of equipment, the heat band that the recirculated water in the cooling water pipe in time generates equipment Go out, secondly, the cooling air channel can also take away partial heat, and assistant reinforcement cooling function makes equipment keep a stabilization Suitable temperature, good cooling results ensure the stable of equipment.

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

1. rotor assembly is directly connect with driven part, stator module is fixed in corresponding rack, to reduce tooth Wheel, reduction box etc. drive intermediate link, simplify type of drive and structure, improve drive efficiency, realize the straight drive of Ring Rolling Machine.

2. adding the matched form of leading screw and nut mechanism to replace hydraulic drive cylinder using rimless combination type permanent-magnet synchronous motor Achieve the purpose that linear motion, to accurately control with ensureing to roll over roll location.

3. the stator base of rimless combination type permanent-magnet synchronous motor can with the structure of cooperating equipment, therefore without fixed form, Be conducive to the concrete structure for coordinating the moving frame and fixed frame and performance makes satisfactory permanent magnet synchronous motor, drop Low manufacturing cost.

4. improving the performance reliable for operation of machine, manufacturing cost and use cost is reduced, the loss of the energy is reduced.

5. permanent magnet synchronous motor has fast response time, the high advantage of control accuracy, while can provide powerful energy Output.

6. adding the sealed set inside motor, the sealing ring forms line contact sealing using cambered surface and plane contact, For plane-plane contact, for the sealing ring in rotary motion, friction is smaller, and double-deck design, improves described close The sealing performance of seal；And the hook-shape structure being centrosymmetric is shaped like streamlined structure, convenient for collecting dust to reach secondary Isolation achievees the effect that sealing, more high-quality compared to general seal form sealing performance, prevents dust from entering, while often locating Sealing ring be equipped with multilayer, improve sealing effect.

Description of the drawings

Fig. 1 is the schematic diagram for the Ring Rolling Machine that the rimless combination type permanent-magnet synchronous motor of embodiment 1 directly drives.

Fig. 2 is a kind of rimless combination type permanent-magnet synchronous motor of embodiment.

Fig. 3 be in Fig. 2 B to figure.

Fig. 4 is the sectional view of upper axial roll off roller/lower axial roll off roller of embodiment 1.

Fig. 5 is the enlarged drawing of the single-layer stator component of embodiment 2.

Fig. 6 is the scheme of installation of the sealing ring of embodiment 3.

Fig. 7 is the ring structure sectional view of embodiment 3.

Fig. 8 be in Fig. 7 A-A to figure.

Fig. 9 is the cooling device distribution schematic diagram of embodiment 4.

In figure：1, machine frame movement device；2, fixed frame；3, lower axial roll off roller；4, upper axial roll off roller；5, moving machine Frame；6, air gap；61, sealing ring；62, hook-like configuration；63, resilient balls；7, rotor assembly；71, rotor pedestal；72, magnet steel base Plate；8, stator module；81, stator base；82, stator core；83, stator winding；9, cooling water pipe；10, cooling air channel；11, Radial roll off roller；12, core roller；13, radial roll off roller pedestal；14, mobile lead screw；15, feed screw nut；16, axial roll off roller bottom Seat；20, rimless combination type permanent-magnet synchronous motor；21, motor mount；22, fastening nut；23, bearing support；24, roll off axis； 25, axial roll off roller bearing；26, axle sleeve.

Specific implementation mode

Clear, complete description is carried out to the technical solution of various embodiments of the utility model below with reference to attached drawing, it is clear that Described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.It is new based on this practicality The embodiment of type, those of ordinary skill in the art's obtained all other implementation without making creative work Example, belongs to the range that the utility model is protected.

It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition The concrete meaning of language in the present invention.

The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.

Embodiment 1

As shown in figures 1-4, a kind of Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor directly drives, institute are present embodiments provided It includes axial machine for rolling ring structure, radial machine for rolling ring structure and fixed frame 2, the axial direction machine for rolling ring structure and the diameter to state Ring Rolling Machine mainly The both ends that the fixed frame 2 is located to machine for rolling ring structure are opposite；The Ring Rolling Machine also includes driving motor, the driving Motor is used to drive the movement of the Ring Rolling Machine；The axial direction machine for rolling ring structure includes the machine frame movement device 1 being sequentially connected, movement The axial moving device on 5 top of rack 5 and the moving frame is equipped with axial roll off roller in the moving frame；The diameter Include the core roller 12 being sequentially distributed, radial roll off roller 11 and radial-movement devices, the radial-movement devices to machine for rolling ring structure For controlling moving radially for the radial roll off roller 11；The machine frame movement device 1, the axial moving device and the diameter The mobile base for including moving member to mobile device and being set on the moving member, the moving member are described for adjusting The displacement of mobile base, the moving member are mobile lead screw 14 and the feed screw nut with the mobile lead screw 14 linear movement cooperation 15, the feed screw nut 15 and the mobile base are fixedly mounted, and the corresponding mobile base is respectively the moving frame 5, axial roll off roller pedestal 16, radial roll off roller pedestal 13；The driving motor is rimless combination type permanent-magnet synchronous motor 20, packet Containing rotor assembly 7 and stator module 8；Wherein, the stator module 8 is opposite with the rotor assembly 7, and the stator module 8 carries The magnetic field rotated for one drives the rotor assembly 7 to rotate；The stator module 8 includes stator base 81, stator core 82 and stator winding 83, the stator winding 83 be wound in the stator core 82, the stator core 82 be six one at The secter pat of type, each secter pat pour entirety for one, and the stator core 82 is located at the axial direction of the rotor assembly 7 And/or it is circumferential；Six secter pats in full circle ring or are evenly spaced on around the axial direction and/or circumferential direction of the rotor assembly 7 Annular spread.Six modular stator modules 8 are distributed on the circumferential and axial of the rotor assembly 7, each described Stator module 8 is that vacuum pours sealing, and piecemeal is stand-alone integrated.The rotor assembly 7 includes rotor pedestal 71 and magnet steel substrate 72, the magnet steel substrate 72 is the permanent-magnet material pasted or be embedded on rotor pedestal 71；The rotor pedestal 71 be connected in On the axial roll off roller/radial direction roll off roller 11 of the mobile lead screw 14/；72 ring cloth of the magnet steel substrate and/or it is distributed in described turn week In sub-base, and it is opposite with the stator winding 83.The stator module 8 is axially arranged with two layers of stator core 82 along it, and every The layer stator core 82 with 72 Relative distribution of magnet steel substrate.

The combination of the rimless combination type permanent-magnet synchronous motor refers to that motor stator component is modular combination form, Modules can control respectively, flexible configuration, it is illustrated that in secter pat is shown is 6 combinations, according to circumstances, secter pat can Continuously be combined into circular ring shape, can also be spaced combination it is in the arc-shaped, number of combinations is organized in pairs, and can have various combinations, without 6 groups are only limitted to, can also be two groups, four groups or eight groups etc..The present embodiment is (fixed using rimless combination type permanent-magnet synchronous motor Sub- winding ring cloth and/or be distributed in week on the rotor pedestal), in addition, to independent stator winding only ring cloth or all cloth at described turn Motor in sub-base or they should all fall into the scope of protection of the utility model in the combination application of the machine.

Wherein, the axial roll off roller includes upper axial roll off roller 4, the lower axial roll off roller of tilt distribution symmetrical above and below 3；Radial machine for rolling ring structure described in the angle face that the axis of the lower axial roll off roller 3 and the upper axial roll off roller 4 is formed.

The lower axial roll off roller 3 is identical with upper axial roll off 4 structures of roller, includes roll off axis successively from inside to outside 24, axle sleeve 26 and axial roll off roller bearing 25, the both ends of the axle sleeve 26 are connected with bearing support 23, the bearing support 23 and institute It is interference fit to state roll off axis 24 and axial roll off roller bearing 25；It is also arranged with multiple fastening nuts on the roll off axis 24 22, the fastening nut 22 is used to fix the position of the bearing support 23, avoids the roll off axis 24 from rotating unstable.Using Rimless combination type permanent-magnet synchronous motor 20 and leading screw and nut mechanism match effect to replace hydraulic drive cylinder to reach straight line fortune Dynamic purpose simplifies type of drive and structure to accurately control with ensureing moving frame position.

Specifically, the Internal and external cycle contact free of the axle sleeve 26 and the bearing support 23, the axle sleeve 26 are in " work " type Or two circle ring columns being nested for coaxial line, preferably two circle ring columns being nested of coaxial line in the present embodiment.

The structure of multiple rimless combination type permanent-magnet synchronous motors is similar in the utility model, principle is identical；It is specific The component that structure size is matched therewith is related.

The utility model provides the cross wedge rolling mill roller that rimless combination type permanent-magnet synchronous motor directly drives, and driving motor is nothing Frame combination type permanent-magnet synchronous motor, including rotor assembly and stator module；Stator module for rotor assembly provide one rotation To drive roller rotational to move, the combination of the rimless combination type permanent-magnet synchronous motor refers to motor stator component in magnetic field For modular combination form, modules can control respectively, and flexible configuration, according to circumstances, stator can continuously be combined into circular ring shape, Also it is in the arc-shaped that combination can be spaced.For the utility model using power part as the mover of motor, it is one that motor melts with mechanical part Body reduces the driving intermediate link such as gear, reduction box, while using rimless combination type permanent-magnet synchronous motor and leading screw and nut mechanism It matches effect and moves along a straight line to replace hydraulic drive cylinder, simplify type of drive and structure, improve drive efficiency, reduce The loss of the energy.For the structure of rimless combination type permanent-magnet synchronous motor without fixed frame, the external form of stator module can be with rolling-mill housing Actual conditions be combined to design, convenient for matching installation with the cross wedge rolling mill roller, have fast response time, control essence High advantage is spent, while powerful energy output can be provided；Secondly, the design of stator module described in multilayer passes through rimless group Box-like permanent magnet synchronous motor directly drives equipment so that the utility model can provide the driving force of bigger, control more flexibility, Intelligence, when operating, are more uniform and stable, and noise is lower compared with traditional transmission noise, also more energy efficient.

Embodiment 2

It is directly driven as shown in figure 5, the utility model preferred embodiment is to provide a kind of rimless combination type permanent-magnet synchronous motor Ring Rolling Machine, the present embodiment is similar with the structure of embodiment 1 and operation principle, and difference from example 1 is that, this reality Apply the example stator module and be axially arranged with one layer of stator core 82 along it, and every layer of stator core 82 with the magnet steel base 72 Relative distribution of plate.

Embodiment 3

As can be seen from figures 6 to 8, the utility model preferred embodiment is to provide, the structure of the present embodiment and embodiment 1 or 2 It is similar with operation principle, and with embodiment 1 or 2 the difference is that, stator base described in the present embodiment and the rotor There are air gaps 6, the both ends of the air gap 6 to further respectively have at least two layers sealing ring 61 disposed in parallel between pedestal；It is described close It is in hook-like configuration 62 to have a circle in the outer ring of seal 61 and inner ring, and the hook-like configuration 62 is connect with the ontology of the sealing ring 61 Place is embedded with the resilient balls 63 being distributed in a ring；The free end of the hook-like configuration 62 is located at the formation of multiple sealing rings 61 Space in, and the hook-like configuration 62 successively staggeredly and the stator base and the rotor pedestal contact free.Stator pack Gap, that is, air gap 6 between part and rotor assembly 7 should not be allowed to dust to enter, and driving motor is not determined in rotation at present Sealing is set between sub-component and rotor assembly 7, therefore has certain requirement to use environment, and adding sealing ring can expand The use scope of rimless combination type permanent-magnet synchronous motor, you can use is under conditions of environment is more severe.

Embodiment 4

It is directly driven as shown in figure 9, the utility model preferred embodiment is to provide a kind of rimless combination type permanent-magnet synchronous motor Ring Rolling Machine, the present embodiment is similar with the structure of embodiment 1 or 2 or 3 and operation principle, and with the difference of embodiment 1 or 2 or 3 Place is, cooling device is additionally provided on stator module described in the present embodiment；The cooling device includes to be circular layout in institute State the cooling water pipe 9 in stator core and/or the cooling air channel 10 in the stator base, the direction of the cooling air channel 10 It is vertical with the Plane of rotation of the rotor assembly 7.The stator module 8 generates the magnetic field of rotation and drives turning for the roll It is dynamic, a large amount of heat can be supervened, the normal operation of equipment is influenced, the recirculated water in the cooling water pipe 9 is in time by equipment The heat of generation is taken out of, and secondly, the cooling air channel 10 can also take away partial heat, and assistant reinforcement cooling function makes to set Suitable temperature is stablized in standby holding one, and good cooling results ensure the stable of equipment.

The basic principles and main features and advantage of the utility model have been shown and described above, although having been shown and retouching The embodiments of the present invention are stated, for the ordinary skill in the art, it is possible to understand that new not departing from this practicality In the case of the principle and spirit of type a variety of change, modification, replacement and modification, the utility model can be carried out to these embodiments Range be defined by the appended claims and the equivalents thereof.

Claims (8)

1. a kind of Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor directly drives, the Ring Rolling Machine include mainly axial machine for rolling ring structure, Radial machine for rolling ring structure and fixed frame, the axial direction machine for rolling ring structure and the radial machine for rolling ring structure are located at the fixed frame Both ends it is opposite；It is characterized in that, the Ring Rolling Machine also includes driving motor, the driving motor is for driving the rolling ring The movement of machine；The axial direction machine for rolling ring structure includes on machine frame movement device, moving frame and the moving frame being sequentially connected The axial moving device in portion is equipped with axial roll off roller in the moving frame；The radial direction machine for rolling ring structure includes to divide successively The core roller of cloth, radial roll off roller and radial-movement devices, the radial-movement devices are used to control the diameter of the radial roll off roller To movement；The machine frame movement device, the axial moving device and the radial-movement devices include moving member and set The mobile base being located on the moving member, the moving member are used to adjust the displacement of the mobile base, and the moving member is Mobile lead screw and the feed screw nut coordinated with the mobile lead screw linear movement, the feed screw nut and the mobile base are fixed Installation, the mobile base include the moving frame, axial roll off roller pedestal, radial roll off roller pedestal；The driving electricity Machine is rimless combination type permanent-magnet synchronous motor, including rotor assembly and stator module；Wherein, the stator module and the rotor Component is opposite, and the magnetic field that the stator module provides a rotation drives the rotor assembly rotation；The stator module is connected In on the fixed frame, the rotor assembly is directly connected with mobile lead screw/axial direction roll off roller/radial direction roll off roller；It is described fixed Sub-component includes stator base, stator core and stator winding, and the stator winding is wound in the stator core, described fixed Sub- iron core is multiple integrally formed secter pats, and each secter pat pours entirety for one, and the stator core is located at described The axial direction and/or circumferential direction of rotor assembly；Multiple secter pats around the rotor assembly axial direction and/or it is circumferential in full circle ring or The annular spread being evenly spaced on.

2. the Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor according to claim 1 directly drives, which is characterized in that described turn Sub-component includes rotor pedestal and magnet steel substrate, and the magnet steel substrate is the permanent-magnet material pasted or be embedded on rotor pedestal； The rotor pedestal is connected with the roll；The magnet steel substrate ring cloth and/or be distributed in week on the rotor pedestal, and with it is described Stator winding is opposite.

3. the Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor according to claim 2 directly drives, which is characterized in that described fixed Sub-component is axially arranged at least one layer of stator core, and opposite with the magnet steel substrate point of every layer of stator core along it Cloth.

4. the Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor according to claim 2 directly drives, which is characterized in that described fixed There are air gap between sub-base and the rotor pedestal, the both ends of the air gap further respectively have at least two layers it is disposed in parallel close Seal；It is in hook-like configuration, the ontology of the hook-like configuration and the sealing ring to have a circle in the outer ring of the sealing ring and inner ring Junction is embedded with the resilient balls being distributed in a ring；The free end of the hook-like configuration is located at what multiple sealing rings were formed In space, and the hook-like configuration interlocks and the stator base and the rotor pedestal contact free successively.

5. the Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor according to claim 1 directly drives, which is characterized in that the axis Include upper axial roll off roller, the lower axial roll off roller of tilt distribution symmetrical above and below to roll off roller；The lower axial roll off roller and Radial machine for rolling ring structure described in the angle face that the axis of the upper axial roll off roller is formed.

6. the Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor according to claim 5 directly drives, which is characterized in that under described Axial roll off roller is identical with the upper axial roll off roll structure, includes roll off axis, axle sleeve and axial roll off successively from inside to outside The both ends of roller bearing, the axle sleeve are connected with bearing support, and the bearing support and the roll off axis and axial roll off roller bearing are equal For interference fit；Multiple fastening nuts are also arranged on the roll off axis, the fastening nut is for fixing the bearing support Position, avoid the roll off shaft rotation from moving unstable.

7. the Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor according to claim 6 directly drives, which is characterized in that the axis The Internal and external cycle contact free of set and the bearing support, the axle sleeve are in " work " type or two annulus columns being nested for coaxial line Body.

8. the Ring Rolling Machine that rimless combination type permanent-magnet synchronous motor according to claim 1 directly drives, which is characterized in that described fixed Cooling device is additionally provided on sub-component；The cooling device includes the cooling water pipe being circular layout in the stator core, And/or the cooling air channel in the stator base, the direction of the cooling air channel are vertical with the Plane of rotation of the rotor assembly.