CN221227305U - Permanent magnet direct-drive motor - Google Patents
Permanent magnet direct-drive motor Download PDFInfo
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- CN221227305U CN221227305U CN202323173389.3U CN202323173389U CN221227305U CN 221227305 U CN221227305 U CN 221227305U CN 202323173389 U CN202323173389 U CN 202323173389U CN 221227305 U CN221227305 U CN 221227305U
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- rotating shaft
- hollow rotating
- permanent magnet
- connecting device
- drive motor
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- 238000001816 cooling Methods 0.000 claims abstract description 56
- 238000005188 flotation Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims description 11
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 24
- 238000012423 maintenance Methods 0.000 abstract description 13
- 230000005389 magnetism Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a permanent magnet direct drive motor, which is used for a flotation machine and comprises the following components: the shell assembly is internally provided with a stator, a rotor is arranged in the stator, a hollow rotating shaft is arranged in the rotor, a non-driving end of the hollow rotating shaft is provided with a self-aligning roller bearing, and a driving end of the hollow rotating shaft is provided with an angular contact bearing; the connecting device is arranged at the outer side of the shell assembly, one end of the connecting device is used for being communicated with air source equipment, and the other end of the connecting device is communicated with the non-driving end of the hollow rotating shaft; the air cooling device is arranged at the top of the shell component and used for radiating heat of the shell component; the coupler is arranged at the driving end of the hollow rotating shaft and is used for connecting the driving end of the hollow rotating shaft with the stirring shaft of the flotation machine; and a sealing element is arranged between the connecting device and the air cooling device. Above-mentioned permanent magnetism directly drives motor, simple structure is convenient for assemble and dismantle, need not other auxiliary component, and the maintenance of being convenient for reduces maintenance time and cost, guarantees whole cooling effect, guarantees the reliable stability of motor operation.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a permanent magnet direct drive motor.
Background
The flotation equipment is commonly equipped with a driving system to realize the flotation process of materials in industries such as mines, coal washery, chemical industry and the like, and an asynchronous motor and a belt pulley are adopted to be rotationally connected to realize the driving of a hollow stirring shaft in related technologies, but the belt pulley in the mode has lower operation efficiency and needs frequent maintenance, so that the overall input cost of the equipment is higher and the operation efficiency is lower.
Based on the problem, a driving system is set as a permanent magnet direct-drive motor by a technician, a static air inlet pipeline of an air inlet device is connected with an output shaft of the motor through a rotary joint, the assembly connection mode of the rotary joint is strict, gas leakage or component damage can be caused by a little improper assembly connection mode, the maintenance time and the cost are increased, and the reliability and the stability of flotation operation are affected; in addition, the cooling system in the permanent magnet direct-drive motor usually adopts a water cooling structure, is limited more, is blocked easily by water cooling, is not uniform in cooling, and cannot guarantee a good cooling effect.
In summary, how to provide a permanent magnet direct drive motor with reduced maintenance time and cost and guaranteed better cooling effect is a problem to be solved by those skilled in the art.
Disclosure of utility model
In view of the above, the utility model aims to provide a permanent magnet direct-drive motor which has a simple structure, is convenient to assemble and disassemble, does not need other auxiliary components, is convenient to maintain, reduces maintenance time and cost, ensures the integral cooling effect, and ensures the reliable stability of motor operation.
In order to achieve the above object, the present utility model provides the following technical solutions:
A permanent magnet direct drive motor for a flotation machine, comprising:
The machine shell comprises a machine shell assembly, wherein a stator is arranged in the machine shell assembly, a rotor is arranged in the stator, a hollow rotating shaft is arranged in the rotor, a self-aligning roller bearing is arranged at the non-driving end of the hollow rotating shaft, and an angular contact bearing is arranged at the driving end of the hollow rotating shaft;
The connecting device is arranged at the outer side of the shell assembly, one end of the connecting device is used for being communicated with air source equipment, and the other end of the connecting device is communicated with the non-driving end of the hollow rotating shaft;
The air cooling device is arranged at the top of the shell assembly and used for radiating heat of the shell assembly;
The coupler is arranged at the driving end of the hollow rotating shaft and is used for connecting the driving end of the hollow rotating shaft with the stirring shaft of the flotation machine;
And the sealing piece is arranged between the connecting device and the air cooling device.
Preferably, the housing assembly includes:
A housing;
the upper end cover is arranged at the top of the shell, and the self-aligning roller bearing is arranged in a first bearing chamber between the upper end cover and the hollow rotating shaft;
The lower end cover is arranged at the bottom of the shell, and the angular contact bearing is arranged in a second bearing chamber between the lower end cover and the hollow rotating shaft.
Preferably, a first sealing element is arranged between the connecting device and the upper end cover, an outer cover is arranged on one side of the upper end cover, and a first framework oil seal is arranged between the outer cover and the hollow rotating shaft.
Preferably, a bearing sleeve is arranged in the lower end cover, the bearing sleeve is sleeved on the outer side of the hollow rotating shaft, and a second framework oil seal is arranged between the bearing sleeve and the hollow rotating shaft.
Preferably, the air cooling device includes:
The fan cover is arranged at the top of the upper end cover, the connecting device penetrates through the fan cover, and a second sealing piece is arranged between the connecting device and the fan cover;
the axial flow fan is arranged on the side part of the shell and is connected with the fan housing.
Preferably, the bottom of the coupler is connected with a pressing plate, and the coupler is connected with the hollow rotating shaft through the pressing plate.
Preferably, the bottom of the coupler is connected with a pressing plate, and the coupler is connected with the hollow rotating shaft through the pressing plate.
Preferably, a retainer ring is arranged at the top of the self-aligning roller bearing, and the retainer ring is clamped with the hollow rotating shaft to limit the deflection of the inner ring of the self-aligning roller bearing.
Preferably, one side of the outer cover is further provided with a wave spring, and the wave spring is clamped on the outer ring of the self-aligning roller bearing to provide an adjustable range.
Preferably, the connecting device is provided with a flange for connecting with an inflation tube of the external air source device.
Preferably, the shell is provided with a plurality of heat dissipation ribs.
The permanent magnet direct-drive motor comprises a shell component, a connecting device, an air cooling device, a sealing piece and a coupler, wherein a stator is arranged in the shell component, a rotor is arranged in the stator, a hollow rotating shaft is arranged in the rotor, the connecting device is arranged on the outer side of the shell component, the air cooling device is arranged on the top of the shell component and used for heat dissipation of the shell component, and the forced air cooling structure is simple in structure, convenient to assemble and disassemble and capable of guaranteeing good cooling and heat dissipation effects; the external air source equipment is communicated with the non-driving end of the hollow rotating shaft through the connecting device, so that air supply is realized, the coupler is arranged at the driving end of the hollow rotating shaft, so that the hollow rotating shaft is connected with a stirring shaft of the flotation machine, and the functions of driving stirring and air conveying are realized; the non-driving end of the hollow rotating shaft is provided with a self-aligning roller bearing so as to bear radial force and radial swing when the main shaft of the flotation machine swings, the driving end of the hollow rotating shaft is provided with an angular contact bearing so as to bear axial force generated by the weight of the motor and the flotation machine, and the safety and the reliability of operation are ensured and the better operation effect of the flotation machine is ensured through the angular contact bearing and the self-aligning roller bearing which are arranged in a targeted manner; in addition, be equipped with the sealing member between connecting device and forced air cooling device to prevent that the air current of fan from leaking, guarantee motor refrigerated operation effect, guarantee the steady reliability of whole motor operation. Above-mentioned permanent magnetism directly drives motor realizes the cooling effect of motor through the air cooling device who locates the casing subassembly top, realizes the intercommunication of outside air supply equipment and hollow pivot through the connecting device who locates the casing subassembly outside, realizes the drive of (mixing) shaft through the drive end of hollow pivot direct and the (mixing) shaft connection of flotation machine to satisfy the operation demand of flotation machine, simple structure is convenient for assemble and dismantle, need not other auxiliary component, the maintenance of being convenient for, reduction in maintenance time and cost guarantees the whole cooling effect, guarantees the reliable stability of motor operation.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a permanent magnet direct drive motor provided by the utility model;
FIG. 2 is an enlarged view of area A of FIG. 1;
fig. 3 is an enlarged view of region B in fig. 1.
In fig. 1 to 3, reference numerals include:
The air cooling device comprises a casing 1, a stator 2, a rotor 3, an air cooling device 4, a connecting device 5, an upper end cover 6, a lower end cover 7, bolts 8, a hollow rotating shaft 9, an angular contact bearing 10, a self-aligning roller bearing 11, a retainer ring 12, a wave spring 13, a bearing sleeve 14, a first framework oil seal 15, a coupler 16, a pressing plate 17, an outer cover 18, a first sealing piece 19, a second sealing piece 20, a second framework oil seal 21, an axial flow fan 41 and a fan housing 42.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The core of the utility model is to provide a permanent magnet direct-drive motor which has a simple structure, is convenient to assemble and disassemble, does not need other auxiliary parts, is convenient to maintain, reduces the maintenance time and cost, ensures the integral cooling effect and ensures the reliable stability of motor operation.
The utility model provides a permanent magnet driving motor which is used for a flotation machine and comprises a shell component, a connecting device 5, an air cooling device 4, a coupler 16 and a sealing element, and please refer to fig. 1.
The casing subassembly is the shell part of motor, is equipped with the stator in the casing subassembly, is equipped with rotor 3 in the stator 2, is equipped with hollow pivot 9 in the rotor 3, and hollow pivot 9 is the pivot of motor, inside has hollow structure, and when the motor starts, hollow pivot 9 obtains pivoted driving force.
The connecting device 5 is arranged on the outer side of the shell assembly, the air cooling device 4 is arranged on the top of the shell assembly, and external air source equipment is communicated with the non-driving end of the hollow rotating shaft 9 through the connecting device 5, namely, the air in the hollow rotating shaft 9 is supplied through the connecting device 5 so as to supply to the stirring shaft of the flotation machine.
The connecting device 5 and the air cooling device 4 are arranged on the outer side of the shell assembly, so that the assembly and the disassembly of the components are facilitated, the maintenance is facilitated, and the use cost and the maintenance cost are reduced.
Specifically, the connecting device 5 is in a fixed state when the motor is in operation, so that the safety of motor operation is ensured. The connection between the connecting device 5 and the shell component is detachable connection, the processing and the assembly of the connecting device 5 are simple and convenient, and the operation cost is reduced.
The air cooling device 4 is arranged at the top of the shell assembly and used for radiating the shell assembly, and ensures stable and uniform supply of cooling gas, ensures the overall radiating effect of the motor and ensures the safety and reliability of motor operation through a forced air cooling structure mode.
The coupler 16 is arranged at the driving end of the hollow rotating shaft 9, the hollow rotating shaft 9 is connected with the stirring shaft of the flotation machine through the coupler 16, and the supply of gas required by the flotation machine is ensured while the stirring shaft of the flotation machine is driven through the motor driving the hollow rotating shaft 9.
When the motor is in an operating state, the air cooling device 4 is started, the hollow rotating shaft 9 rotates to drive the stirring shaft of the flotation machine connected with the driving end of the hollow rotating shaft 9 to rotate so as to stir slurry or other materials, cooling and heat dissipation operation of the motor is realized through the air cooling device 4, and gas supply during slurry stirring is realized through communication of external gas source equipment and the hollow rotating shaft 9.
Further, a sealing element is arranged between the connecting device 5 and the air cooling device 4, so that the air flow of the air cooling device 4 is prevented from leaking, and stable and reliable air supply and cooling effect are ensured. The specific structural form of the sealing element is not limited, and can be a sealing ring, a sealing plug and the like.
In this embodiment, the specific structural form of the connecting device 5 is not limited, so as to facilitate installation, realize communication between the hollow rotating shaft 9 and external air source equipment, and ensure a relatively stable and reliable operation effect.
The air cooling device 4 is preferably a fan, so that the installation is convenient, and the operation is stable and reliable.
The permanent magnet direct-drive motor comprises a shell component, a connecting device 5, an air cooling device 4, a sealing element and a coupler 16, wherein a stator 2 is arranged in the shell component, a rotor 3 is arranged in the stator 2, a hollow rotating shaft 9 is arranged in the rotor 3, the connecting device 5 is arranged on the outer side of the shell component, the air cooling device 4 is arranged on the top of the shell component so as to be used for heat dissipation in the shell component, and the forced air cooling structure is simple in structure, convenient to assemble and disassemble and capable of guaranteeing good cooling and heat dissipation effects; the external air source equipment is communicated with the non-driving end of the hollow rotating shaft 9 through the connecting device 5, the air supply is realized, the coupler 16 is arranged at the driving end of the hollow rotating shaft 9, so that the hollow rotating shaft 9 is connected with a stirring shaft of the flotation machine, and the functions of driving stirring and air conveying are realized; the non-driving end of the hollow rotating shaft 9 is provided with a self-aligning roller bearing 11 so as to bear radial force and radial swing when a main shaft of the flotation machine swings, the driving end of the hollow rotating shaft 9 is provided with an angular contact bearing 10 so as to bear axial force generated by the weight of a motor and the flotation machine, and the safety and the reliability of operation are ensured and the better operation effect of the flotation machine is ensured through the angular contact bearing 10 and the self-aligning roller bearing 11 which are arranged in a targeted manner; in addition, a sealing element is arranged between the connecting device 5 and the air cooling device 4 so as to prevent the air flow of the fan from leaking, the operation effect of cooling the motor and ensure the stable and reliable operation of the whole motor; realize cooling effect of motor through the forced air cooling device of locating the casing subassembly top, realize the intercommunication of outside air supply equipment and hollow pivot 9 through locating the connecting device 5 in the casing subassembly outside, realize the drive of (mixing) shaft through the drive end of hollow pivot 9 direct with the (mixing) shaft connection of flotation machine to satisfy the operation demand of flotation machine, simple structure convenient to assemble dismantles, need not other auxiliary parts, the maintenance of being convenient for, reduction in maintenance time and cost guarantees whole cooling effect, guarantees the reliable stability of motor operation.
Based on the above embodiment, the housing assembly includes:
A housing 1;
The upper end cover 6 is arranged at the top of the shell 1, and a self-aligning roller bearing 11 is arranged in a first bearing chamber between the upper end cover 6 and the hollow rotating shaft 9;
The lower end cover 7 is arranged at the bottom of the shell 1, and an angular contact bearing 10 is arranged in a second bearing chamber between the lower end cover 7 and the hollow rotating shaft 9.
Referring to fig. 1, 2 and 3, the housing assembly specifically includes a housing 1, an upper end cover 6 disposed at the top of the housing 1, and a lower end cover 7 disposed at the bottom of the housing. The connection modes among the upper end cover 6, the lower end cover 7 and the shell 1 are all preferably bolts 8, and the method is simple and convenient.
A self-aligning roller bearing 11 is arranged in the first bearing chamber between the upper end cover 6 and the hollow rotating shaft 9, namely, the non-driving end of the motor is provided with the self-aligning roller bearing 11 so as to bear swinging radial force generated when the hollow rotating shaft 9 drives the stirring shaft of the flotation machine to rotate, and the safety and the reliability of the motor during operation are ensured.
An angular contact bearing 10 is arranged in the second bearing chamber between the lower end cover 7 and the hollow rotating shaft 9, namely, the angular contact bearing 10 is arranged at the driving end of the motor so as to bear the axial force generated by the weight of the motor and the rotor of the flotation machine, and the safety and the reliability of the operation are ensured.
Aiming at the structural form and the operation condition of the motor and the flotation machine, the angular contact bearing 10 and the aligning roller bearing 11 are pertinently arranged, the reliability of the whole operation is ensured, the structure is simple, the installation is easy, and the economical efficiency is better.
On the basis of any embodiment, a first sealing element 19 is arranged between the connecting device 5 and the upper end cover 6, one side of the upper end cover 6 is provided with an outer cover 18, and a first framework oil seal 15 is arranged between the outer cover 18 and the hollow rotating shaft 9.
Referring to fig. 1 and 2, a first sealing member 19 is disposed between the connecting device 5 and the upper end cover 6, and the connecting device 5 and the upper end cover 6 are preferably connected by bolts, so that the air of an external air source device is prevented from entering the first bearing chamber through the arrangement of the first sealing member 19, and good sealing performance of the first bearing chamber is ensured.
Through setting up first skeleton oil blanket 15 between enclosing cover 18 and hollow pivot 9, guarantee the indoor relative leakproofness of first bearing, avoid lubricating oil to reveal, guarantee the reliable stability of motor operation.
In addition, it should be noted that, for the structural form of the self-aligning roller bearing 11, the first skeleton oil seal 15 is a double-layer skeleton oil seal, so as to prevent dust or wet gas or liquid from entering the first bearing chamber, and ensure a better sealing effect. Of course, a plurality of first frame oil seals 15 may be provided, or other sealing forms may be combined, so long as an excellent sealing effect can be achieved.
On the basis of any embodiment, the bearing sleeve 14 is arranged in the lower end cover 7, the bearing sleeve 14 is sleeved on the outer side of the hollow rotating shaft 9, and a second framework oil seal 21 is arranged between the bearing sleeve 14 and the hollow rotating shaft 9.
Referring to fig. 1 and 3, the bearing housing 14 is disposed at the outer side of the hollow rotating shaft 9, and a second framework oil seal 21 is disposed therebetween to ensure the sealing effect in the second bearing chamber, avoid leakage of lubricating oil, and ensure the safety and reliability of operation.
On the basis of any of the above embodiments, the air cooling device 4 includes:
The fan housing 42 is arranged at the top of the upper end cover 6, the connecting device 5 passes through the fan housing 42, and the second sealing element 20 is arranged between the fan housing 42 and the connecting device;
the axial flow fan 41 is provided on the side of the casing 1 and connected to the fan housing 42.
Referring to fig. 1, the air cooling device 4 includes an axial flow fan 41 and a fan housing 42 connected thereto, wherein the fan housing 42 is hollow, so that the connecting device 5 passes through the fan housing 42 to supply air in the hollow rotating shaft 9.
The second sealing element 20 is arranged between the outer Zhou Hefeng covers 42 of the connecting device 5, so that the fan gas is prevented from leaking, stable and reliable air flow is provided, and the supply of the stirring shaft gas and the cooling effect of the motor are ensured.
Locate the lateral part of casing 1 with axial fan 41, provide the cooling air current from last to down to the casing subassembly through the fan housing 42 at casing 1 top, realize the forced air-cooled cooling to the inside of casing subassembly, simple structure, it is convenient to install, can guarantee comparatively stable even air current, guarantees the inside heat dissipation cooling effect of casing subassembly, guarantees the fail safe nature of motor operation.
In addition, a certain gap is arranged between the fan housing 42 and the upper end cover 6 of the motor so as to facilitate assembly and disassembly, and the gap can be set according to practical situations, and the second sealing element 20 can be installed after the fan housing 42 is installed.
On the basis of any of the above embodiments, the bottom of the coupling 16 is connected with a pressing plate 17, and the coupling 16 is connected with the hollow rotating shaft 9 through the pressing plate 17.
Referring to fig. 1, the pressing plate 17 is connected with the hollow rotating shaft 9 and is arranged at the tail part of the driving end of the hollow rotating shaft 9, the coupling 16 is connected with the hollow rotating shaft 9 through the pressing plate 17, the vertical (i.e. axial) shaking of the hollow rotating shaft 9 under the influence of gravity when being communicated with the stirring shaft is limited, the reliable stability of the hollow rotating shaft 9 is ensured, the connection strength between the stirring shaft of the flotation machine and the hollow rotating shaft 9 is ensured, and the safe reliability of the operation of the flotation machine is ensured.
On the basis of any embodiment, the top of the self-aligning roller bearing 11 is provided with a retainer ring 12, and the retainer ring 12 is clamped with the hollow rotating shaft 9 to limit the deflection of the inner ring of the self-aligning roller bearing 11.
Referring to fig. 1 and 2, a retainer ring 12 is arranged at the top of the self-aligning roller bearing 11, a mounting groove for mounting the retainer ring 12 is arranged on the hollow rotating shaft 9, and the retainer ring 12 is matched with the hollow rotating shaft 9 in a clamping way to limit the deflection of the inner ring of the self-aligning roller bearing 11 so as to ensure the operation performance of the self-aligning roller bearing 11 in bearing the radial force when the stirring shaft of the flotation machine swings and ensure the operation reliability and stability of the whole device.
In the present embodiment, the structural form and number of the check rings 12 are not limited, and the design is performed in accordance with the actual requirements.
On the basis of any one of the above embodiments, one side of the outer cover 18 is provided with a wave spring 13, and the wave spring 13 is clamped on the outer ring of the self-aligning roller bearing 11 to provide an adjustable range.
Referring to fig. 1 and 2, the wave spring 13 is disposed on one side of the outer cover 18 and is clamped on the outer ring of the self-aligning roller bearing 11, so that the outer ring of the self-aligning roller bearing 11 has a certain adjustable range by utilizing the elasticity of the wave spring 13.
On the basis of any of the above embodiments, the connecting device 5 is provided with a flange for connecting with an inflation tube of an external air source device.
The connecting device 5 is provided with a flange, the structure is simple, the connection between the connecting device 5 and an inflation tube of external air source equipment is realized through the flange, the effective supply of air in the stirring shaft is ensured, the connection is simple and convenient, the cost is lower, and the stirring shaft has better popularization value.
The practical form, the material and the like of the inflation tube are not limited, and the inflation tube is flexibly designed according to practical requirements.
On the basis of any one of the embodiments, the casing 1 is provided with a plurality of heat dissipation ribs.
The specific structural form of the radiating ribs arranged on the casing 1 is not limited, the use requirement is met, the radiating ribs are matched with the air cooling device 4, the overall cooling effect of the motor is guaranteed, and the stable and reliable operation performance of the motor is guaranteed.
The structural form, the distribution mode and the like of the radiating ribs are not limited, and the radiating ribs can be flexibly selected and designed according to actual requirements.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The permanent magnet direct drive motor provided by the utility model is described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (10)
1. A permanent magnet direct drive motor for a flotation machine, comprising:
The motor comprises a housing assembly, wherein a stator (2) is arranged in the housing assembly, a rotor (3) is arranged in the stator (2), a hollow rotating shaft (9) is arranged in the rotor (3), a self-aligning roller bearing (11) is arranged at the non-driving end of the hollow rotating shaft (9), and an angular contact bearing (10) is arranged at the driving end of the hollow rotating shaft (9);
The connecting device (5) is arranged on the outer side of the shell assembly, one end of the connecting device (5) is used for being communicated with air source equipment, and the other end of the connecting device (5) is communicated with the non-driving end of the hollow rotating shaft (9);
The air cooling device (4) is arranged at the top of the shell assembly and is used for radiating heat of the shell assembly;
The coupler (16) is arranged at the driving end of the hollow rotating shaft (9) and is used for connecting the driving end of the hollow rotating shaft (9) with the stirring shaft of the flotation machine;
The sealing piece is arranged between the connecting device (5) and the air cooling device (4).
2. The permanent magnet direct drive motor of claim 1, wherein the housing assembly comprises:
a housing (1);
The upper end cover (6) is arranged at the top of the shell (1), and the aligning roller bearing (11) is arranged in a first bearing chamber between the upper end cover (6) and the hollow rotating shaft (9);
The lower end cover (7) is arranged at the bottom of the shell (1), and the angular contact bearing (10) is arranged in a second bearing chamber between the lower end cover (7) and the hollow rotating shaft (9).
3. Permanent magnet direct drive motor according to claim 2, characterized in that a first sealing element (19) is arranged between the connecting device (5) and the upper end cover (6), an outer cover (18) is arranged on one side of the upper end cover (6), and a first framework oil seal (15) is arranged between the outer cover (18) and the hollow rotating shaft (9).
4. A permanent magnet direct drive motor according to claim 3, characterized in that a bearing sleeve (14) is arranged in the lower end cover (7), the bearing sleeve (14) is sleeved on the outer side of the hollow rotating shaft (9), and a second framework oil seal (21) is arranged between the bearing sleeve and the hollow rotating shaft.
5. A permanent magnet direct drive motor according to claim 3 or 4, characterized in that the air cooling device (4) comprises:
The fan cover (42) is arranged at the top of the upper end cover (6), and the connecting device (5) penetrates through the fan cover (42) and is provided with a second sealing piece (20) between the two;
And an axial flow fan (41) which is arranged on the side part of the shell (1) and is connected with the fan housing (42).
6. The permanent magnet direct drive motor according to claim 5, characterized in that a pressing plate (17) is connected to the bottom of the coupling (16), and the coupling (16) is connected with the hollow rotating shaft (9) through the pressing plate (17).
7. The permanent magnet direct drive motor according to claim 6, wherein a retainer ring (12) is arranged at the top of the self-aligning roller bearing (11), and the retainer ring (12) is clamped with the hollow rotating shaft (9) to limit the deflection of the inner ring of the self-aligning roller bearing (11).
8. The permanent magnet direct drive motor according to claim 7, wherein one side of the outer cover (18) is further provided with a wave spring (13), and the wave spring (13) is clamped on the outer ring of the self-aligning roller bearing (11) to provide an adjustable range.
9. Permanent magnet direct drive motor according to claim 8, characterized in that the connection means (5) are provided with flanges for connection with an inflation tube of an external air supply device.
10. The permanent magnet direct drive motor according to claim 9, wherein the housing (1) is provided with a plurality of heat dissipation ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323173389.3U CN221227305U (en) | 2023-11-23 | 2023-11-23 | Permanent magnet direct-drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323173389.3U CN221227305U (en) | 2023-11-23 | 2023-11-23 | Permanent magnet direct-drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221227305U true CN221227305U (en) | 2024-06-25 |
Family
ID=91545528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323173389.3U Active CN221227305U (en) | 2023-11-23 | 2023-11-23 | Permanent magnet direct-drive motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221227305U (en) |
-
2023
- 2023-11-23 CN CN202323173389.3U patent/CN221227305U/en active Active
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