CN112737256A - Directly-driven permanent magnet electric roller device - Google Patents
Directly-driven permanent magnet electric roller device Download PDFInfo
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- CN112737256A CN112737256A CN202011491040.2A CN202011491040A CN112737256A CN 112737256 A CN112737256 A CN 112737256A CN 202011491040 A CN202011491040 A CN 202011491040A CN 112737256 A CN112737256 A CN 112737256A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/04—Drums, rollers, or wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/22—Arrangements or mountings of driving motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/30—Rope, cable, or chain drums or barrels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention relates to a direct-drive permanent magnet electric roller lifting or conveying device, in particular to a direct-drive permanent magnet electric roller device. A direct-drive roller device of an internal permanent magnet motor comprises a first stator assembly, a second stator assembly, a rotor assembly, a static main shaft, a roller, a bearing, a first sealing assembly and a second sealing assembly. The rotor assembly is sleeved on the static main shaft through the rotor support and the bearing, and the first stator assembly and the second stator assembly are axially and symmetrically distributed by taking the rotor assembly as a center and are respectively connected to the two ends of the static main shaft through the bolt flanges. The roller is arranged on the outer circular surface of the rotor assembly of the permanent magnet motor through a roller mounting connecting bolt, and the whole electric roller device is arranged on a supporting seat of the system through two ends of the static main shaft or through a connecting hole of a stator shell in the stator assembly. The invention provides a permanent magnet direct-drive electric roller device which is simple, compact, efficient, reliable, good in control and simple in maintenance.
Description
Technical Field
The invention relates to a permanent magnet electric roller lifting or conveying device for direct drive, in particular to a direct drive permanent magnet electric roller device, which comprises a drive motor, a driven roller and an assembly method of the drive motor and the roller.
Background
A traditional roller lifting or conveying device is conventionally configured to be a motor-driven speed reducer, and is connected with a roller through a coupler to drive a belt or a steel wire rope to run. Most of motors with the configuration adopt alternating current asynchronous motors, direct current motors or electric excitation synchronous machines, the motor efficiency is low, the transmission chain is long, the occupied space is large, and regular maintenance is needed, so that mine equipment needs to be replaced by a device which is high in efficiency, simplified in transmission chain, compact in structural space, and simple to maintain or free of maintenance.
In recent years, the advanced technology of mine drum lifting or conveying equipment is mainly embodied in the following types:
1. the permanent magnet variable frequency motor replaces the traditional alternating current asynchronous motor, a direct current motor and an electric excitation synchronous machine, so that the efficiency and the system stability are improved, and the impact vibration is reduced.
2. The drum is directly driven by a low-speed large-torque permanent magnet motor, the motor is externally or internally mounted, a speed reducer is omitted, and a coupling is adopted for connection.
3. The roller is directly driven by a low-speed large-torque permanent magnet motor, the motor is externally or internally mounted, a speed reducer and a coupling are omitted, and a motor rotor is in suspension type and is rigidly or flexibly connected to the roller.
Patent No. CN105281517A, patent name: a belt conveyor direct-drive roller motor structure. The outer rotor and the roller are integrated, the roller is an outer rotor casing, only the space of the roller is occupied, the space of a speed reducer, a coupler and a motor is saved, a plurality of parts are saved, the structure is simple, the size space is further saved, and the outer rotor and the roller are suitable for the narrow working environment in a coal mine. The defect of this patent is that electric motor rotor and cylinder integration, the cylinder be the motor external rotor, and the permanent magnet directly inlays to put and installs in the cylinder inboard, and on the one hand, the inboard machining precision requirement of cylinder as the motor external rotor is very high, need be dismantled together with the cylinder when the motor is maintained to be changed, and the motor can not regard as a module alone to change, increases and maintains degree of difficulty and cost. On the other hand, when the drum is deformed due to winding of the steel wire rope or the angle of the drum needs to be adjusted during field installation, the motor rotor and the air gap can be influenced.
Patent No. CN103296805B, patent name: an internal external rotor permanent magnet motor direct-drive mine hoist. The low-speed large-torque permanent magnet motor is adopted to directly drive the roller, the motor is installed inside the roller, a speed reducer and a coupler are omitted, a transmission chain is simplified, and efficiency is improved. The motor and the roller are used as two independent devices and are respectively provided with respective bearing supports, a permanent magnet motor stator is sleeved on a static main shaft of the elevator through a stator support structure, and a motor outer rotor structure is sleeved on the static main shaft of the elevator through an inner motor bearing; the winding drum and the supporting structure thereof are sleeved on a static main shaft of the hoisting machine through an outer side bearing, and the outer rotor of the motor is connected to the inner side of the winding drum through a flexible connecting mechanism. The patent cancels a coupler and fully considers the difficult problems of uneven stress of a suspension type rotor structure and difficult control of a motor air gap. The flexible connection structure has the defects that a flexible connection structure is required to be added, the technical threshold of the flexible connection structure is high, the design calculation and processing are very complex, the cost is high, the flexible connection structure is generally applied to high-precision equipment, and regular maintenance or replacement is required.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and comprises the following aspects:
1. the traditional winch device needs to be provided with a reduction gearbox, a coupler and the like, and has the advantages of low efficiency, easy failure, poor reliability, more power consumption and low space utilization rate.
2. The direct-drive low-speed large-torque motor is arranged inside the roller, the outer rotor and the roller are integrated, the vibration impact of the roller has large deformation to an air gap of the motor, the motor and the roller are required to be detached together during maintenance, and the maintenance and the debugging are troublesome.
3. The direct-drive low-speed large-torque motor is arranged inside the roller, the outer rotor is connected to the roller through the flexible connecting device, the flexible device needs to be maintained regularly, and both the design processing technology threshold and the manufacturing and maintenance cost are higher.
The invention is realized by adopting the following technical scheme: a directly driven permanent magnet motorized pulley apparatus, including first stator assembly, second stator assembly, rotor assembly, static main shaft and cylinder; the rotor assembly comprises magnetic steel and a disc-shaped rotor support, magnetic steel grooves for mounting the magnetic steel are uniformly distributed in the rotor support, the magnetic steel is mounted in the magnetic steel grooves, shaft holes are formed in the rotor support, bearings are mounted in the shaft holes, the rotor support is sleeved on the static main shaft through the bearings, the outer circular surface of the rotor support is connected with the roller through bolts, and the first stator assembly and the second stator assembly respectively comprise a disc-shaped stator shell, a stator core and a stator coil; stator core evenly fixes the medial surface at stator casing, stator coil sets up on stator core, first stator subassembly, second stator subassembly is located rotor subassembly both ends about respectively, the left end of quiet main shaft and the stator casing of first stator subassembly are connected, quiet main shaft right-hand member and second stator subassembly's stator casing are connected, the stator casing and the sealed cooperation of cylinder left end of first stator subassembly, the stator casing and the sealed cooperation of cylinder right-hand member of second stator subassembly.
The motor module consisting of the first stator component, the second stator component, the rotor component and the static main shaft is arranged in the roller, the motor module can be taken as an integral module and can be conveniently disassembled from and assembled from two sides of the roller or replaced, the motor rotor component and the roller are mutually independent, the maintenance is convenient, the disassembly and the assembly of the roller can be realized without disassembling and assembling the roller, and the operation of an equipment system cannot be influenced; the roller is directly connected with the rotor component coaxially and directly for driving, and the transmission efficiency of the system is further improved. The roller is used as a motor protective shell, and the motor module does not need to be protected by a designed shell, so that the weight is reduced, and the cost and the size space are saved.
The invention adopts another technical scheme as follows: a directly driven permanent magnet motorized roller device comprises a first stator assembly, a rotor assembly, a disc-shaped cover plate, a static main shaft and a roller; the rotor assembly comprises magnetic steel and a disc-shaped rotor support, magnetic steel grooves for mounting the magnetic steel are uniformly distributed on the rotor support, the magnetic steel is mounted in the magnetic steel grooves, shaft holes are formed in the rotor support, bearings are mounted in the shaft holes, the rotor support is sleeved on the static main shaft through the bearings, the outer circular surface of the rotor support is connected with the roller through bolts, and the first stator assembly comprises a disc-shaped stator shell, a stator core and a stator coil; stator core evenly fixes the medial surface at stator casing, and stator coil sets up on stator core, and first stator subassembly, apron are located rotor subassembly both ends about respectively, and the left end of quiet main shaft and the stator casing of first stator subassembly are connected, quiet main shaft right-hand member and cover connection, the stator casing and the sealed cooperation of cylinder left end of first stator subassembly, apron and the sealed cooperation of cylinder right-hand member. The second stator assembly may be eliminated when the output torque margin of the overall device is too great.
The invention adopts another technical scheme as follows: a directly driven permanent magnet electric roller device comprises a first stator component, a second stator component, a left rotor component, a right rotor component, a static main shaft and a roller; the left rotor assembly and the right rotor assembly respectively comprise magnetic steel and a disc-shaped rotor support, magnetic steel grooves for mounting the magnetic steel are uniformly distributed on the rotor supports, the magnetic steel is mounted in the magnetic steel grooves, shaft holes are formed in the rotor supports, bearings are mounted in the shaft holes, the rotor supports are sleeved on the static main shaft through the bearings, the outer circular surface of each rotor support is connected with the corresponding roller through bolts, and each first stator assembly and each second stator assembly respectively comprise a disc-shaped stator shell, a stator core and a stator coil; stator core evenly fixes the medial surface at stator housing, stator coil sets up on stator core, first stator subassembly is located the left end of left side rotor subassembly, second stator subassembly is located the right-hand member of right side rotor subassembly, the left end of quiet main shaft and the stator casing of first stator subassembly are connected, quiet main shaft right-hand member and second stator subassembly's stator casing are connected, the stator casing and the sealed cooperation of cylinder left end of first stator subassembly, the stator casing and the sealed cooperation of cylinder right-hand member of second stator subassembly. When the drum is slender and needs to increase the supporting rigidity, one stator assembly can be matched with one rotor assembly, the whole device adopts two rotor assemblies, and the drum is supported by the two rotor assemblies.
The invention adopts another technical scheme as follows: a kind of direct-driven permanent magnet motorized pulley device, characterized by that: the motor module comprises a first stator component, a second stator component, a static main shaft and a rotor component; the rotor assembly comprises magnetic steel and a disc-shaped rotor support, magnetic steel grooves for mounting the magnetic steel are uniformly distributed in the rotor support, the magnetic steel is mounted in the magnetic steel grooves, shaft holes are formed in the rotor support, bearings are mounted in the shaft holes, the rotor support is sleeved on the static main shaft through the bearings, the outer circular surface of the rotor support is connected with the roller through bolts, and the first stator assembly and the second stator assembly respectively comprise a disc-shaped stator shell, a stator core and a stator coil; stator core evenly fixes the medial surface at stator casing, stator coil sets up on stator core, first stator subassembly, second stator subassembly is located rotor subassembly both ends about respectively, the left end of quiet main shaft and the stator casing of first stator subassembly are connected, quiet main shaft right-hand member and second stator subassembly's stator casing are connected, the sealed cooperation of the first stator subassembly stator casing and the cylinder left end of the motor module of the leftmost end in position, the sealed cooperation of the second stator subassembly stator casing and the cylinder right-hand member of the motor module of the rightmost end in position. When the torque of the whole device needs to be doubled, two motors can be connected in series, namely, the rotor assemblies in the two motor modules support one roller together.
In the above directly driven permanent magnet electric roller device, the manufacturing process of the stator core is as follows: firstly, winding and welding and fixing the stator punching sheet while punching a coil groove in a numerical control manner, and then drilling a bolt hole for fixing an iron core after the stator punching sheet is wound, welded and fixed firmly; and then uniformly embedding the coils into the coil grooves of the iron core along the axial direction, and after the wire connection of all coil embedded wires is finished, vacuum pouring the winding vacuum pouring sealant.
In the directly driven permanent magnet electric roller device, the stator casing is provided with the annular water channel. The annular water channel serves to cool the stator core and the coils.
In the above directly driven permanent magnet electric drum device, the stator casing is provided with an annular sealing groove; an annular sealing plate is arranged in the sealing groove, and the outer ring of the sealing plate is contacted with the inner circumferential surface of the roller.
In the above directly driven permanent magnet electric drum device, the outer circumferential surface of the stator casing serves as an annular sealing surface, and an annular sealing member is arranged between the annular sealing surface and the inner circumferential surface of the drum.
In the direct-drive permanent magnet electric roller device, the two ends in the roller are stepped circumferential surfaces, and the sealing plate and the annular sealing member are respectively contacted with the stepped circumferential surfaces.
In the direct-drive permanent magnet electric roller device, the fins are uniformly distributed on the left plane and the right plane of the rotor bracket.
The invention provides a permanent magnet direct-drive electric roller device which is simple, compact, efficient, reliable, good in control and simple in maintenance, and can be used for lifting and conveying systems of mines, metallurgy and the like.
Drawings
Fig. 1 is an overall structural view of the permanent magnet direct drive motorized pulley apparatus of the present invention.
Fig. 2 is a structural diagram of a stator assembly of a permanent magnet motor of the permanent magnet direct-drive electric roller.
Fig. 3a and 3b are a left side view and a cross-sectional view a-a of a permanent magnet motor stator housing of the permanent magnet direct drive motorized pulley of the present invention.
Fig. 4 is a structural diagram of a permanent magnet motor rotor assembly of the permanent magnet direct-drive electric roller.
Fig. 5 is a structure diagram of a permanent magnet motor rotor bracket and fins of the permanent magnet direct-drive electric roller.
Fig. 6a, 6b are left and side views of the drum 15 of the present invention.
Fig. 7 is a connection structure of the permanent magnet motor rotor assembly 30 and the drum 15 of the permanent magnet direct-drive motorized drum according to the present invention.
Fig. 8 is a view showing a structure of a sealing assembly between a drum and a motor of the apparatus of the present invention, i.e., a partially enlarged view of fig. 1.
Fig. 9 is a schematic structural diagram of a first preferred embodiment of the present invention.
Fig. 10 is a schematic structural view of a second preferred embodiment of the present invention.
Fig. 11 is a schematic structural diagram of a third preferred embodiment of the invention.
Fig. 12 is a schematic view of an electric machine module in a third preferred example of the invention.
FIG. 13 is a schematic view showing the structure of a drum according to the second and third preferred embodiments of the present invention.
Description of reference numerals: 20-a first stator component, 40-a second stator component, 30-a rotor component, 50-a first sealing component, 60-a second sealing component, 70-a cover plate, 100-a motor module, 1-a stator shell, 2-a stator core, 3-a stator coil, 4-magnetic steel, 5-a rotor support, 6-a fin, 7-a bearing, 8-a bearing cover, 9-a static spindle sleeve, 10-a static spindle, 11-a second stator component and a non-driving end connecting bolt, 12-a first stator component and a driving end connecting bolt, 13-a sealing plate, 14-a sealing element, 15-a roller, 16-a roller mounting connecting bolt and 17-winding vacuum pouring sealant.
1-1-first connecting hole, 1-2-second connecting hole, 1-3-third connecting hole, 1-4-sealing groove, 1-5 annular sealing surface and 1-6-annular water channel.
5-1-magnetic steel groove, 5-2-connecting bolt hole and 5-3 bolt hole.
15-1-connecting fixing hole, 15-2-sealing assembly matching surface.
Detailed Description
A direct-drive roller device of an internal permanent magnet motor comprises a first stator assembly 20, a second stator assembly 40, a rotor assembly 30, a static main shaft 10, a roller 15, a bearing 7, a first sealing assembly 50, a second sealing assembly 60 and the like. The rotor assembly 30 is sleeved on the static main shaft 10 through the rotor bracket 5 and the bearing 7, and the first stator assembly 20 and the second stator assembly 40 are axially and symmetrically distributed by taking the rotor assembly 30 as a center and are respectively connected to two ends of the static main shaft 10 through bolt flanges. The roller 15 is installed on the outer circular surface of the permanent magnet motor rotor assembly 30 through a roller installation connecting bolt 16, and the whole electric roller device is installed on a supporting seat of a system through two ends of the static main shaft 10 or through a connecting hole 1-2 of the stator casing 1 in the stator assembly 20.
The permanent magnets 4 in the rotor assembly 30 are circumferentially and sequentially embedded in the magnetic steel grooves 5-1 of the rotor support 5 of the permanent magnet motor according to the rule that N poles and S poles are alternately arranged.
The fins 6 in the rotor assembly 30 are circumferentially and uniformly distributed on the rotor support 5, so that the rotor drum 15 is supported, the rigidity and stability of the rotor support 5 are enhanced, and the fan function is realized to reduce the temperature rise.
The drum 15 can be used as a motor protection casing, a first sealing assembly 50 is arranged between one end of the drum 15 and the first stator assembly 20, and a second sealing assembly 60 is arranged between the other end of the drum 15 and the second stator assembly 40.
The invention is described in detail below with reference to the drawings and examples
Fig. 1 illustrates the main structure of a permanent-magnet direct-drive electric drum of the present invention, which mainly comprises: the first stator assembly 20, the second stator assembly 40, the rotor assembly 30, the first seal assembly 50, the second seal assembly 60, the bearing 7, the stationary main shaft 10 and the drum 15, wherein the first stator assembly 20 and the second stator assembly 40 are respectively connected with both ends of the stationary main shaft 10.
Fig. 2 shows a stator assembly structure diagram illustrating the invention, wherein each of the first stator assembly 20 and the second stator assembly 40 comprises a stator casing 1, a stator core 2, a stator coil 3 and a winding vacuum pouring sealant 17; the stator casing 1 and the stator core 2 are axially connected and fixed through bolts. Wherein 2 circumference evenly arranged of stator core have the coil groove, and stator core 2's manufacture technology is: firstly, winding and welding the stator punching sheet firmly while performing numerical control notching, and then drilling a bolt hole for fixing the iron core after the stator punching sheet is wound, welded and fixed firmly. And then the coils 3 are uniformly distributed and embedded into the coil slots of the iron core along the axial direction, and the winding vacuum pouring sealant 17 is poured in vacuum after the wire embedding and wiring of all the coils 3 are finished.
Fig. 3a, 3b show a left side view and a cross-sectional view of a stator casing 1 of the invention comprising: the water channel sealing structure comprises a first connecting hole 1-1, a second connecting hole 1-2, a third connecting hole 1-3, a sealing groove 1-4, an annular sealing surface 1-5 and an annular water channel 1-6. The first connecting holes 1-1 evenly distributed in the circumferential direction are used for connecting and fixing the stator shell and the static main shaft 10, the third connecting holes 1-3 are used for connecting the stator shell 1 and the stator core 2, and the annular water channels 1-5 are avoided in the layout of the third connecting holes 1-3. The whole direct-drive electric roller device is fixedly connected with a lifting system or a conveying system base through a second connecting hole 1-2 on the static main shaft or the stator casing. The annular water passages 1 to 6 function to cool the stator core 2 and the coils 3.
Fig. 4 shows a schematic structural diagram of a rotor assembly of the present invention, which mainly comprises: magnet steel 4, rotor support 5 and fin 6. The fins 6 and the rotor support 5 are welded and machined into a whole, the magnetic steel 4 is circumferentially and alternately arranged in the groove of the rotor support 5 according to the polarities N and S, and the matching surface of the magnetic steel 4 is coated with the double-component magnetic steel pouring sealant.
Fig. 5 shows a structural diagram of the rotor holder 5 and the fins 6 of the present invention, wherein the fins 6 are circumferentially uniformly distributed on the left and right planes of the rotor holder 5 near the outer circumferential surface and are symmetrically distributed on the left and right sides. The shape structure of the fins 6 can be designed into different wing shapes and quantities according to the ventilation and heat dissipation requirements in the motor, and can also be designed into different structures and quantities according to the rigidity and strength requirements of the rotor support 5. The rotor holder 5 includes: the magnetic steel mounting device comprises magnetic steel grooves 5-1 which are uniformly arranged in the circumferential direction and used for mounting magnetic steel, connecting bolt holes 5-2 used for connecting a bearing cover 8, and bolt holes 5-3 which are used for connecting the whole motor and the roller and are positioned on the outer circular surface.
Fig. 6a, 6b illustrate left and side views of the drum 15, comprising: the connecting and fixing hole 15-1 and the sealing component matching surface 15-2 are arranged, the connecting and fixing hole 15-1 is positioned on the circumferential surface of the roller, and the sealing component matching surface 15-2 is in a step shape and is positioned at the left end and the right end of the roller 15. The connecting and fixing hole 15-1 is used for mounting and fixing connection between the roller and the motor, and the sealing assembly matching surface 15-2 is used for mounting and matching the sealing element 14 and the sealing plate 13 between the roller and the motor.
Fig. 7 is a schematic diagram of a connection structure of the permanent magnet direct drive motor rotor 30 and the drum 15, wherein a connection fixing hole 15-1 on the drum 15 and a threaded hole 5-3 on the rotor bracket 5 are fixedly connected through a drum mounting connection bolt 16, and the drum mounting connection bolt 16 must not exceed the outer circumferential surface of the drum 15. Meanwhile, the inner circumferential surface of the drum 15 is engaged with the outer circumferential surface of the rotor frame 5 and supports the drum 15.
Fig. 8 illustrates the sealing structure between the stator assembly and the drum of the permanent magnet motor according to the present invention, wherein a first sealing assembly 50 and a second sealing assembly 60 are respectively installed at the matching position of the stator assembly and the drum, and each of the first sealing assembly and the second sealing assembly comprises a sealing plate 13 and a sealing member 14. The sealing grooves 1-4 on the stator casing 1 are matched with the sealing plate 13 to form a first seal for isolating dust and impurities, and the sealing surfaces 1-5 on the stator casing 1 are matched with the sealing element 14 to form a second seal for further isolation.
Fig. 9 is a block diagram of a first preferred application example of the present invention, which is a modular design, and when the output torque margin of the whole device is too large, the second stator assembly 40 is used as a module, and the module can be removed, that is, the non-drive end second stator assembly 40 is removed and replaced by a cover plate 70. The cover plate 70 is in sealing engagement with the drum by the first and second seal assemblies 50 and 60.
Fig. 10 is a schematic diagram of a preferred second application example of the present invention, the inside of the motor is also of a modular design, the first stator assembly 20, the second stator assembly 40 and the rotor assembly 30 are separate modules and can be combined freely, when the drum 15 is slender and needs to increase the supporting rigidity, the structure of fig. 10 can be adopted, that is, one stator assembly is provided with one rotor assembly 30, the whole device adopts two rotor assemblies 30, the drum is supported by the two rotor assemblies 30, two sets of bearings 7 are adopted, in this example, the schematic diagram of the drum 15 is shown in fig. 13, and the rigidity and stability of the drum 15 are greatly enhanced.
Fig. 11 is a schematic diagram of a preferred third application example of the present invention, in which the motor module 100 in the whole motorized pulley device is used as a module as shown in fig. 12, and when the torque of the whole device needs to be doubled, two motors 100 can be used in series, that is, the rotor assemblies 30 in the two motor modules 100 jointly support one pulley 15, and in this example, the schematic diagram of the structure of the pulley 15 is shown in fig. 13.
The invention has the beneficial effects that:
the motor module 100 can be taken as an integral module and can be conveniently disassembled from or replaced from two sides of the roller 15, the motor rotor assembly 30 and the roller 15 are mutually independent, the maintenance is convenient, the disassembly and the maintenance can be carried out without disassembling and assembling the roller 15, and the operation of an equipment system is not influenced;
the roller 15 and the rotor assembly 30 are coaxially and directly connected and directly driven, and the transmission efficiency of the system is further improved.
The roller 15 is used as a motor protection shell, and the motor module 100 does not need to be provided with a shell for protection, so that the weight is reduced, and the cost and the size space are saved;
a large space is formed between the roller 15 and the stator coil 3, and the cooling fins 6 on the rotor bracket 5 can extend into the space between the roller 15 and the stator coil 3, so that the convection heat dissipation of air in the motor is enhanced, and the temperature rise of the stator is reduced;
when the steel wire rope or the belt is wound to cause impact deformation of the roller or the angle of the roller 15 needs to be adjusted during field installation, the impact and deformation of the roller 15 are in the radial direction, the air gap of the motor module 100 is in the axial direction, and the impact deformation of the roller 15 cannot influence the air gap deformation of the motor 100.
The motor module 100 has a small axial dimension and a compact structure, and compared with a traditional radial motor, the motor volume can be reduced by more than 50%, the motor weight can be reduced by 30%,
the modular design, the motor module 100 can be used as a module as a whole, and the two motor modules 100 are axially connected in series to double the torque of the roller 15, as shown in fig. 11; inside the motor, the stator assembly 20 is used as a module, and two stator assembly 20 modules can be adopted to match with one rotor assembly 30 module, as shown in fig. 1; when the torque margin of the drum 15 is too large, one stator assembly module 40 can be subtracted, and one stator assembly 20 is adopted to match one rotor assembly 30, so that the drum torque is reduced, as shown in fig. 9.
Claims (10)
1. A kind of direct-driven permanent magnet motorized pulley device, characterized by that: comprises a first stator component (20), a second stator component (40), a rotor component (30), a static main shaft (10) and a roller (15); the rotor assembly (30) comprises magnetic steel (4) and a disc-shaped rotor support (5), magnetic steel grooves (5-1) for mounting the magnetic steel are uniformly distributed on the rotor support (5), the magnetic steel (4) is mounted in the magnetic steel grooves (5-1), a shaft hole is formed in the rotor support (5), a bearing (7) is mounted in the shaft hole, the rotor support (5) is sleeved on the static main shaft (10) through the bearing (7), the outer circular surface of the rotor support (5) is connected with the roller (15) through a bolt, and the first stator assembly (20) and the second stator assembly (40) both comprise a disc-shaped stator casing (1), a stator core (2) and a stator coil (3); stator core (2) evenly fix the medial surface in stator casing (1), stator coil (3) set up on stator core (2), first stator subassembly (20), second stator subassembly (40) are located rotor subassembly (30) both ends about respectively, the left end of quiet main shaft (10) and stator casing (1) of first stator subassembly (20) are connected, the stator casing (1) of quiet main shaft (10) right-hand member and second stator subassembly (40) are connected, stator casing (1) and cylinder (15) left end sealing fit of first stator subassembly (20), stator casing (1) and cylinder (15) right-hand member sealing fit of second stator subassembly (40).
2. A kind of direct-driven permanent magnet motorized pulley device, characterized by that: comprises a first stator component (20), a rotor component (30), a disc-shaped cover plate (70), a static main shaft (10) and a roller (15); the rotor assembly (30) comprises magnetic steel (4) and a disc-shaped rotor support (5), magnetic steel grooves (5-1) for mounting the magnetic steel are uniformly distributed on the rotor support (5), the magnetic steel (4) is mounted in the magnetic steel grooves (5-1), a shaft hole is formed in the rotor support (5), a bearing (7) is mounted in the shaft hole, the rotor support (5) is sleeved on the static main shaft (10) through the bearing (7), the outer circular surface of the rotor support (5) is connected with the roller (15) through a bolt, and the first stator assembly (20) comprises a disc-shaped stator casing (1), a stator core (2) and a stator coil (3); stator core (2) evenly fix the medial surface in stator casing (1), stator coil (3) set up on stator core (2), first stator subassembly (20), both ends about apron (70) are located rotor subassembly (30) respectively, the left end of quiet main shaft (10) and stator casing (1) of first stator subassembly (20) are connected, quiet main shaft (10) right-hand member and apron (70) are connected, stator casing (1) and cylinder (15) left end sealing fit of first stator subassembly (20), apron (70) and cylinder (15) right-hand member sealing fit.
3. A kind of direct-driven permanent magnet motorized pulley device, characterized by that: the stator comprises a first stator component (20), a second stator component (40), a left rotor component, a right rotor component (30), a static main shaft (10) and a roller (15); the left rotor assembly and the right rotor assembly (30) both comprise magnetic steel (4) and a disc-shaped rotor support (5), magnetic steel grooves (5-1) for mounting the magnetic steel are uniformly distributed in the rotor support (5), the magnetic steel (4) is mounted in the magnetic steel grooves (5-1), a shaft hole is formed in the rotor support (5), a bearing (7) is mounted in the shaft hole, the rotor support (5) is sleeved on a static main shaft (10) through the bearing (7), the outer circular surface of the rotor support (5) is connected with a roller (15) through a bolt, and the first stator assembly (20) and the second stator assembly (40) both comprise a disc-shaped stator casing (1), a stator core (2) and a stator coil (3); stator core (2) evenly fix the medial surface in stator casing (1), stator coil (3) set up on stator core (2), first stator subassembly (20) are located the left end of left side rotor subassembly (30), second stator subassembly (40) are located the right-hand member of right side rotor subassembly (30), the left end of quiet main shaft (10) and stator casing (1) of first stator subassembly (20) are connected, stator casing (1) of quiet main shaft (10) right-hand member and second stator subassembly (40) are connected, stator casing (1) and cylinder (15) left end sealing fit of first stator subassembly (20), stator casing (1) and cylinder (15) right-hand member sealing fit of second stator subassembly (40).
4. A kind of direct-driven permanent magnet motorized pulley device, characterized by that: the motor comprises a drum (15) and a plurality of motor modules which are connected in series and are positioned in the drum, wherein each motor module comprises a first stator component (20), a second stator component (40), a static main shaft (10) and a rotor component (30); the rotor assembly (30) comprises magnetic steel (4) and a disc-shaped rotor support (5), magnetic steel grooves (5-1) for mounting the magnetic steel are uniformly distributed on the rotor support (5), the magnetic steel (4) is mounted in the magnetic steel grooves (5-1), a shaft hole is formed in the rotor support (5), a bearing (7) is mounted in the shaft hole, the rotor support (5) is sleeved on the static main shaft (10) through the bearing (7), the outer circular surface of the rotor support (5) is connected with the roller (15) through a bolt, and the first stator assembly (20) and the second stator assembly (40) both comprise a disc-shaped stator casing (1), a stator core (2) and a stator coil (3); stator core (2) evenly fix the medial surface in stator casing (1), stator coil (3) set up on stator core (2), first stator subassembly (20), second stator subassembly (40) are located rotor subassembly (30) both ends about respectively, the left end of quiet main shaft (10) and stator casing (1) of first stator subassembly (20) are connected, the stator casing (1) of quiet main shaft (10) right-hand member and second stator subassembly (40) are connected, first stator subassembly (20) stator casing (1) and cylinder (15) left end seal fit of the motor module of the leftmost end in position, second stator subassembly (40) stator casing (1) and cylinder (15) right-hand member seal fit of the motor module of the rightmost end in position.
5. A direct drive permanent magnet motorized pulley apparatus according to claims 1-4, further comprising: the manufacturing process of the stator core (2) comprises the following steps: firstly, winding and welding and fixing the stator punching sheet while punching a coil groove in a numerical control manner, and then drilling a bolt hole for fixing an iron core after the stator punching sheet is wound, welded and fixed firmly; and then, uniformly embedding the coils (3) into the coil grooves of the iron core along the axial direction, and pouring the winding vacuum pouring sealant (17) in vacuum after the wire embedding and wiring of all the coils (3) are finished.
6. A direct drive permanent magnet motorized pulley apparatus according to claims 1-4, further comprising: an annular water channel (1-5) is arranged on the stator shell (1).
7. A direct drive permanent magnet motorized pulley apparatus according to claim 1, wherein: the stator casing (1) is provided with an annular sealing groove (1-4); an annular sealing plate (13) is arranged in the sealing grooves (1-4), and the outer ring of the sealing plate is contacted with the inner circumferential surface of the roller.
8. A direct drive permanent magnet motorized pulley apparatus according to claim 7, wherein: the outer circle surface of the stator casing (1) is used as an annular sealing surface (1-5), and an annular sealing element (14) is arranged between the annular sealing surface (1-5) and the inner circle surface of the roller.
9. A direct drive permanent magnet motorized pulley apparatus according to claim 8, wherein: two ends in the roller are stepped circumferential surfaces, and the sealing plate (13) and the annular sealing element (14) are respectively contacted with the stepped circumferential surfaces.
10. A direct drive permanent magnet motorized pulley apparatus according to claims 1-4, further comprising: fins (6) are uniformly distributed on the left plane and the right plane of the rotor bracket (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011491040.2A CN112737256B (en) | 2020-12-17 | 2020-12-17 | Directly-driven permanent magnet electric roller device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011491040.2A CN112737256B (en) | 2020-12-17 | 2020-12-17 | Directly-driven permanent magnet electric roller device |
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| CN112737256A true CN112737256A (en) | 2021-04-30 |
| CN112737256B CN112737256B (en) | 2022-04-26 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002310174A (en) * | 2001-04-18 | 2002-10-23 | Nsk Ltd | Bearing with motor |
| CN101710771A (en) * | 2009-11-20 | 2010-05-19 | 李茂林 | Electric motor |
| CN102948048A (en) * | 2010-06-23 | 2013-02-27 | 阿莫泰克有限公司 | Double-stator/double-rotor motor and direct actuator for washer using same |
| CN103840628A (en) * | 2012-11-19 | 2014-06-04 | 通用电气能源能量变换技术有限公司 | Axial flux machine |
| US20160072362A1 (en) * | 2014-09-05 | 2016-03-10 | Steve Michael Kube | Hybrid Axial Flux Machines and Mechanisms |
| CN108263979A (en) * | 2018-01-31 | 2018-07-10 | 湖北环电磁装备工程技术有限公司 | The hoist engine drum apparatus that a kind of no frame permanent magnet synchronous motor directly drives |
| CN112072858A (en) * | 2020-08-24 | 2020-12-11 | 银川威力传动技术股份有限公司 | Gate pump direct-drive permanent magnet motor |
-
2020
- 2020-12-17 CN CN202011491040.2A patent/CN112737256B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002310174A (en) * | 2001-04-18 | 2002-10-23 | Nsk Ltd | Bearing with motor |
| CN101710771A (en) * | 2009-11-20 | 2010-05-19 | 李茂林 | Electric motor |
| CN102948048A (en) * | 2010-06-23 | 2013-02-27 | 阿莫泰克有限公司 | Double-stator/double-rotor motor and direct actuator for washer using same |
| CN103840628A (en) * | 2012-11-19 | 2014-06-04 | 通用电气能源能量变换技术有限公司 | Axial flux machine |
| US20160072362A1 (en) * | 2014-09-05 | 2016-03-10 | Steve Michael Kube | Hybrid Axial Flux Machines and Mechanisms |
| CN108263979A (en) * | 2018-01-31 | 2018-07-10 | 湖北环电磁装备工程技术有限公司 | The hoist engine drum apparatus that a kind of no frame permanent magnet synchronous motor directly drives |
| CN112072858A (en) * | 2020-08-24 | 2020-12-11 | 银川威力传动技术股份有限公司 | Gate pump direct-drive permanent magnet motor |
Non-Patent Citations (1)
| Title |
|---|
| 王雷等: "煤矿全永磁电机系统驱动传动关键技术", 《煤矿安全》 * |
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| CN112737256B (en) | 2022-04-26 |
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