CN117060634A - Enhancement type unilateral cantilever type direct-drive motor - Google Patents
Enhancement type unilateral cantilever type direct-drive motor Download PDFInfo
- Publication number
- CN117060634A CN117060634A CN202310971815.3A CN202310971815A CN117060634A CN 117060634 A CN117060634 A CN 117060634A CN 202310971815 A CN202310971815 A CN 202310971815A CN 117060634 A CN117060634 A CN 117060634A
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- bearing
- drive motor
- end plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006835 compression Effects 0.000 claims abstract description 3
- 238000007906 compression Methods 0.000 claims abstract description 3
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 7
- 230000000670 limiting effect Effects 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses an enhanced single-side cantilever type direct-drive motor, and belongs to the technical field of motors. The motor includes: a connecting seat; the stator is fixedly connected to the connecting seat; the rotor shaft is rotatably arranged on the central axis of the stator in a penetrating way around the shaft; the rotor is coaxially arranged on the periphery of the stator, a first end of the rotor is synchronously connected with the rotor shaft, and a second end of the rotor is arranged in a suspending manner; the connecting seat is fixedly provided with a bearing mounting seat, and the bearing mounting seat is provided with an intermediate bearing; the second end of the rotor is fixedly connected with a positioning circular ring, the positioning circular ring corresponds to the middle bearing, and after the assembly, the outer ring of the middle bearing is in compression connection with the inner annular wall of the positioning circular ring. The invention can ensure that the outer rotor is not scratched with the stator during operation, thereby improving the operation stability of the motor.
Description
Technical Field
The invention relates to the technical field of motors, in particular to an enhanced single-side cantilever type direct-drive motor.
Background
External rotor motors are being used in a wide range of applications where a direct drive force is required, such as in mixing stations, washing machines, etc., because of their ability to provide a large torque. The outer rotor motor generally adopts a unilateral supporting cantilever structure, namely one end of the rotor is synchronously connected with the rotor shaft to provide support, the other end (output end) is suspended, and when the outer rotor motor works, the rotor performs cutting magnetic field movement and drives the rotor shaft to rotate together.
Because the output end of the outer rotor is not supported by a structure, the existing outer rotor motor is easy to deviate from the rotor to scratch with the stator, and further the motor is blocked. Therefore, various structures for preventing the rotor from rubbing against the stator are designed by the technical staff in the industry, for example, one scheme is that a blocking and protecting ring is arranged between the stator and the rotor, and when the rotor is offset and is about to interfere with the stator, the rotor interferes before the blocking and protecting ring, so that the rotor is prevented from further contacting the stator, and the aim of preventing rubbing against is achieved. The method has good effect under the condition of smaller length of the stator core, and once the length of the stator core exceeds 400mm (the corresponding magnetic steel length of the rotor also exceeds 400 mm), the interference between the rotor and the stop ring is too severe to cause structural member deformation, and finally the motor is damaged.
In view of this, a new solution is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to solve the problem that in the prior art, when the length of a stator iron core exceeds 400mm, a scratch phenomenon occurs between an outer rotor and a stator, and provides an enhanced single-side cantilever type direct-drive motor which can stably ensure that the outer rotor is not scratched with the stator during operation, thereby improving the operation stability of the motor.
In order to achieve the above purpose, the invention adopts the following technical means:
an enhanced single-sided cantilever direct drive motor comprising:
a connecting seat;
the stator is fixedly connected to the connecting seat;
the rotor shaft is rotatably arranged on the central axis of the stator in a penetrating way around the shaft;
the rotor is coaxially arranged on the periphery of the stator, a first end of the rotor is synchronously connected with the rotor shaft, and a second end of the rotor is arranged in a suspending manner;
the connecting seat is fixedly provided with a bearing mounting seat, and the bearing mounting seat is provided with an intermediate bearing; the second end of the rotor is fixedly connected with a positioning circular ring, the positioning circular ring corresponds to the middle bearing, and after the assembly, the outer ring of the middle bearing is in compression connection with the inner annular wall of the positioning circular ring.
As a further improvement, the connecting seat comprises a connecting seat and a stator seat which are coaxially butted and fixedly connected;
the bearing mounting seat is fixedly connected to the root of the stator seat.
As a further development, the root of the stator mount projects radially outwards by a ring of connecting flanges, on which the bearing mount is fixed by means of a number of fastening elements.
As a further improvement, the rotor comprises a rotor cylinder and a rotor end plate, wherein the rotor cylinder is fixedly connected to one side surface of the rotor end plate, and a permanent magnet is attached to the inner wall of the rotor cylinder; the center of the rotor end plate is synchronously coupled with the rotor shaft.
As a further improvement, the rotor end plate comprises a center ring and an end plate surface, wherein the center ring is sleeved on the rotor shaft, and a double bond is arranged between the center ring and the end plate surface;
the edge of the end plate surface is provided with a positioning sinking table, and the rotor barrel is clamped into the positioning sinking table during assembly and is fixed on the end plate surface through a fastening element.
As a further improvement, a rotor pressure plate is also included, which is fixedly connected to the end of the rotor shaft by a fastening element, and the edge of the rotor pressure plate abuts against the center ring.
As a further improvement, the stator comprises an iron core and a stator winding, wherein the stator winding is wound and positioned on the periphery of the iron core, and the iron core is sleeved on the surface of the stator seat after assembly.
As a further development, the positioning ring is further provided with a blocking rim which, after assembly, is shielded outside the intermediate bearing.
As a further improvement, the stator core length exceeds 400mm.
As a further improvement, the device further comprises a protective cover, wherein an opening of the protective cover is fixedly connected with the edge of the connecting seat.
Compared with the prior art, the invention has the following beneficial effects:
in the single-side cantilever type outer rotor structure, the running stability of a rotor suspension end completely depends on the control of a connecting end, and once the length of a rotor core exceeds a certain value, the running stability of the suspension end becomes increasingly uncontrollable; according to the enhanced single-side cantilever type direct-drive motor, the intermediate bearing is arranged at the second end of the rotor, so that the suspended end of the rotor can be sufficiently supported during operation, and the limiting structures are applied to the two ends of the rotor at the moment, so that the phenomenon of axial displacement of the single-side cantilever type outer rotor is avoided during operation, interference between the rotor and the stator is avoided, and the operation stability of the motor is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 illustrates a cross-sectional view of an enhanced single-sided cantilever direct drive motor of the present invention;
FIG. 2 shows a partial enlarged view at A in FIG. 1;
FIG. 3 shows a perspective view of the bearing cap of FIG. 1;
fig. 4 shows an assembly view of the core and stator windings of fig. 1.
Description of main reference numerals:
a connecting seat-101; a first flange-102; a second flange-103; bearing chamber-104; reinforcing ribs-105; a second bearing-106; a stator-201; a stator base-202; an iron core-203; stator windings-204; inner spigot-206; bearing cap-207; bearing mounting holes-208; a first bearing-209; -a connecting flange-210; bearing mount-211; an intermediate bearing-212; a rotor shaft-301; a rotor-401; rotor end plate-402; rotor cylinder-403; magnetic steel-404; center ring-405; end plate face-406; positioning the ring-408; a stop edge-409; rotor platen-410; and a protective cover-501.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "vertical," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other. Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
Examples
Referring to fig. 1, the present invention discloses an enhanced single-side cantilever type direct-drive motor (for convenience of description, hereinafter referred to as a motor), which is a permanent magnet synchronous motor, and includes a connection base 101, a stator 201, a rotor shaft 301, a rotor 401 and a protection cover 501. The motor of this embodiment is in a state in which its load end is vertically downward when in operation.
The connection base 101 is a structural base of the whole motor, and other structural components of the motor are directly or indirectly mounted thereon. In particular, in the present embodiment, the connection seat 101 includes a first flange 102, a second flange 103, and a bearing chamber 104 formed between the two flanges. The first flange 102, namely the side surface of the connecting seat 101 facing the inside of the motor, is used for installing other structural components connected with the motor; the second flange 103, i.e. the side of the connection block 101 facing the outside of the motor, is used for mounting loads or external devices. The second flange 103 is disposed parallel to the first flange 102, and the area of the second flange 103 is smaller than that of the first flange 102. The connecting seat 101 is further provided with a plurality of reinforcing ribs 105, the plurality of reinforcing ribs 105 are circumferentially distributed along the outer wall of the bearing chamber 104, each reinforcing rib 105 is connected with the first flange 102, the second flange 103 and the outer wall of the bearing chamber 104, and the reinforcing ribs 105 are used for enhancing the structural strength of the connecting seat 101. A second bearing 106 is mounted in the bearing chamber 104, the second bearing 106 being for connection to one end of the rotor shaft 301.
Referring to fig. 4, a stator 201 is fixedly connected to the connection base 101, and specifically, the stator 201 includes a stator base 202, an iron core 203, and a stator winding 204. The stator winding 204 is wound on the iron core 203, and the iron core 203 and the stator winding 204 are sleeved together and positioned on the outer surface of the stator base 202; the stator seat 202 is fixedly connected to one side of the first flange 102, so as to realize the fixed connection between the stator 201 and the connection seat 101. The structures and winding manners of the core 203 and the stator winding 204 are all known in the art, and are not described herein.
With continued reference to fig. 1, in the present embodiment, the stator base 202 is in a straight cylindrical shape, the outer wall of the stator base 202 is provided with a step (not shown) that is matched with the iron core 203, i.e. the inner wall of the iron core 203 matches with the shape of the step, so that when the stator 201 is assembled, the iron core 203 is only required to be sleeved on the stator base 202 from top to bottom until the step is supported at the bottom of the iron core 203, and the assembly can be completed, and the positioning is accurate, convenient and quick.
Referring to fig. 3 in combination, in the embodiment, an inner spigot 206 is disposed at the top end of the stator base 202, and the inner spigot 206 is connected to the top edge of the stator base 202. The top of the inner spigot 206 is also provided with a bearing cover 207, the area of the bearing cover 207 being larger than the opening area of the center of the inner spigot 206. The bearing cover 207 is fixed to the inner spigot 206 by a fastening member such as a screw, and a bearing mounting hole 208 is provided on the inner side of the bearing cover 207, i.e., the bearing mounting hole 208 faces the inside of the stator base 202. A first bearing 209 is mounted in the bearing mounting hole 208, and the first bearing 209 is used to connect one end of the rotor shaft 301. Those skilled in the art will appreciate that: the provision of the bearing cover 207 at the top end of the stator base 202 is for facilitating the mounting and processing of the first bearing 209, since the bearing cover 207 is a small part in relation to the stator base 202, the processing of the bearing cover 207 and the mounting of the first bearing 209 on the bearing cover 207 is much more convenient than the operation on the stator base 202. Of course, in other embodiments, the first bearing 209 may also be mounted directly on the stator base 202 or the female end 206.
Referring to fig. 1-2, specifically, the bottom of the stator base 202 is fixedly connected to the connection base 101, and the two are coaxially disposed. The root of the stator base 202 protrudes outwards in the radial direction to form a circle of connecting flange 210, one side of the connecting flange 210 facing the stator 201 is fixedly connected with a bearing mounting base 211, and an intermediate bearing 212 is sleeved on the bearing mounting base 211, namely, the inner ring of the intermediate bearing 212 is fixedly connected with the inner wall of the bearing mounting base 211.
Referring to fig. 1, in the present embodiment, a rotor shaft 301 is rotatably disposed on a central axis of the motor. Specific mention has been made above of: both ends of the rotor shaft 301 are connected to the first bearing 209 and the second bearing 106, respectively, thereby achieving positioning of the rotor shaft 301 within the motor.
The rotor 401 of the present embodiment is an outer rotor cantilever structure, the rotor 401 is coaxially disposed at the periphery of the stator 201, and a first end of the rotor 401 is synchronously coupled with the rotor shaft 301, and a second end of the rotor 401 is suspended. Specifically, rotor 401 includes rotor end plate 402, rotor cylinder 403, and magnetic steel 404. Rotor end plate 402 is a component that connects rotor 401 to rotor shaft 301, and when assembled, rotor shaft 301 passes through the central axis of rotor end plate 402, and the two are coupled in synchrony, for example, by a double bond. Specifically, the rotor end plate 402 includes a central ring 405 and an end plate surface 406, the rotor shaft 301 is inserted into the central ring 405, and a double-bond structure is disposed between the two; one end of the rotor cylinder 403 is fixedly connected to an edge of the end plate surface 406. The rotor cylinder 403 is a structure of the rotor 401 for generating electromagnetic driving force, the magnetic steel 404 is in a small sheet shape, is attached on the inner wall of the rotor cylinder 403 and extends over the whole inner wall, and the magnetic steel 404 is a permanent magnetic material for providing a static magnetic field; the rotor shaft 301, the rotor cylinder 403 and the rotor end plate 402 are coaxially provided, and rotate in synchronization with each other during operation. The double-bond structure is a common structure for realizing synchronous connection of the shaft and other components, and is not repeated here.
Referring to fig. 1, after assembly, a gap is left between the rotor 401 and the stator 201, which provides a movable space for the relative rotation of the two.
In this embodiment, the second end of the rotor 401 is fixedly connected to a positioning ring 408, the positioning ring 408 corresponds to the intermediate bearing 212, and after assembly, the outer ring of the intermediate bearing 212 is tightly pressed against the inner wall of the positioning ring 408. So far, the purpose of adding a limiting structure at the second end of the rotor 401 is achieved.
The motor can enhance the running stability of the motor due to the additional arrangement of the intermediate bearing 212 at the second end of the rotor 401, and the function principle is as follows:
in operation of the motor, rotor 401, rotor end plate 402 and rotor shaft 301 rotate as a unit relative to stator 201.
Because the stator 201 and the rotor 401 adopt multipolar design, each pole of the magnetic field generated by the stator 201 does not have too great change, mainly the dimensional tolerance of the rotor magnetic steel 404, the ovality of the rotor cylinder 403 and the coaxiality of the stator 201 and the rotor 401 are mainly caused, and the three are accumulated to cause uneven gaps of each pole, so that uneven circumferential magnetic pulling force applied to the rotor 140 all the places is caused, especially when the length of a stator core and the length of the rotor magnetic steel exceed 400mm, uneven magnetic pulling force applied to the rotor 401 is larger, the non-support end position is caused to deviate to one side, namely the actual rotating sub-shaft 301 line of the rotor 401 deviates from the initial position of the rotor magnetic steel, and then the stator 201 is scratched, so that the motor is blocked and cannot normally run.
The above phenomena are problems encountered by the outer rotor cantilever structure, and the second end of the rotor 401 is additionally provided with the intermediate bearing 212 in the embodiment, so that the suspended end of the rotor 401 can be sufficiently supported during operation, which is equivalent to applying a limiting structure at both ends of the rotor 401, thereby ensuring that the single-side cantilever type outer rotor does not generate an axial displacement phenomenon during operation, avoiding interference between the rotor 401 and the stator 201, and further improving the operation stability of the motor. The intermediate bearing 212 participates in operation and has a limiting effect on the relative positions of the rotor 401 and the stator 201; the whole scheme forms a set of three-bearing operation system, the added intermediate bearing 212 adopts the inner circle positioning and the outer circle operation, the bearings at the two ends of the rotor shaft 301 adopt the outer circle positioning and the inner circle operation, and the defect of a cantilever structure is perfectly solved.
Referring to fig. 1-2, preferably, the positioning ring 408 is further provided with a blocking edge 409, and the blocking edge 409 is formed by extending radially inward from an inner annular wall of the positioning ring 408, and the blocking edge 409 is shielded outside the intermediate bearing 212 after assembly, and the blocking edge 409 and the bearing mounting seat 211 together almost seal and enclose the intermediate bearing 212, so as to protect the intermediate bearing 212.
Preferably, the shaft diameter of the rotor shaft 301 is stepped, and the shaft diameters of the two ends of the rotor shaft 301 are respectively matched with the inner ring sizes of the first bearing 209 and the second bearing 106. After assembly, the thicker section of the middle of the rotor shaft 301 is just clamped between the two bearings, so that the rotor shaft 301 is prevented from being displaced along the axial direction.
In this embodiment, the opening of the protection cover 501 is fixedly connected to the edge of the connection seat 101. Because the structural base of the motor is the connecting seat 101, the protective cover 501 is only covered outside the rotor 401, and plays a role of isolation, and the protective cover 501 has no bearing function, therefore, the protective cover 501 of the motor can be in a thin shell shape, for example, in the embodiment, the thickness of the protective cover 501 is 4-5mm, and the weight of the protective cover is 40-50kg, so that the motor volume can be reduced, and the weight of the motor can be greatly reduced.
Referring to fig. 1, preferably, the first end of the rotor shaft 301 is further provided with a rotor pressing plate 410, the rotor pressing plate 410 is fixedly connected to the end of the rotor shaft 301 by a fastening element such as a screw, and the edge of the rotor pressing plate 410 abuts against the central ring 405 of the rotor end plate 402; at this time, the other end of the center ring 405 abuts against the inner ring of the first bearing 209, and the rotor pressing plate 410 further improves the connection stability between the rotor end plate 402 and the rotor shaft 301, so as to prevent the loosening phenomenon at the connection position of the two.
It should be noted that, in the motor of this embodiment, the length of the iron core of the stator 201 exceeds 400mm, and the rotor 401 can be kept stable during the operation of the motor through actual measurement, and no scratch phenomenon occurs, because the intermediate bearing 212 provides a supporting effect at the second end of the rotor 401. It will be apparent to those skilled in the art that the intermediate bearing 212 can be applied to a case where the length of the core of the stator 201 is less than 400mm, and the same advantageous effects as those of the present invention can be achieved, and thus the scope of the present invention is not limited to a case where the length of the core of the stator 201 exceeds 400mm.
Referring to fig. 2, in addition, in the above embodiment, the bearing mount 211 and the intermediate bearing 212 are mounted on the root of the stator base 202, however, it will be apparent to those skilled in the art that in other embodiments, the bearing mount 211 and the intermediate bearing 212 may be directly mounted on the connection base 101, and the same effect may be achieved.
The motor in the above embodiment is a permanent magnet synchronous motor, however, according to the present invention, the motor is not limited to a synchronous motor, and the present invention can be applied to other motor types, such as an asynchronous motor, so long as the rotor 401 of the motor is configured as an outer rotor cantilever structure according to the present invention, and the phenomenon of rubbing between the rotor 401 and the stator 201 can still be solved by the present invention. All kinds of solutions without departing from the spirit of the present invention should fall within the scope of the present invention.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications of the invention are intended to fall within the scope of the invention.
Claims (10)
1. An enhanced single-sided cantilever direct drive motor, comprising:
a connecting seat;
the stator is fixedly connected to the connecting seat;
the rotor shaft is rotatably arranged on the central axis of the stator in a penetrating way around the shaft;
the rotor is coaxially arranged on the periphery of the stator, a first end of the rotor is synchronously connected with the rotor shaft, and a second end of the rotor is arranged in a suspending manner;
the connecting seat is fixedly provided with a bearing mounting seat, and the bearing mounting seat is provided with an intermediate bearing; the second end of the rotor is fixedly connected with a positioning circular ring, the positioning circular ring corresponds to the middle bearing, and after the assembly, the outer ring of the middle bearing is in compression connection with the inner annular wall of the positioning circular ring.
2. The enhanced single-sided cantilever direct-drive motor according to claim 1, wherein the connecting base comprises a connecting base and a stator base, which are coaxially butted and fixedly connected;
the bearing mounting seat is fixedly connected to the root of the stator seat.
3. The enhanced single-sided cantilever direct drive motor according to claim 2, wherein the root portion of the stator base is radially outwardly protruded with a ring of connection flanges, and the bearing mount is fixed to the connection flanges by a plurality of fastening members.
4. The enhanced single-sided cantilever direct-drive motor according to claim 1, wherein the rotor comprises a rotor cylinder and a rotor end plate, the rotor cylinder is fixedly connected to one side of the rotor end plate, and permanent magnets are attached to the inner wall of the rotor cylinder; the center of the rotor end plate is synchronously coupled with the rotor shaft.
5. The enhanced single-sided cantilever direct drive motor according to claim 4, wherein the rotor end plate comprises a center ring and an end plate surface, the center ring is sleeved on the rotor shaft, and a double bond is arranged between the center ring and the end plate surface;
the edge of the end plate surface is provided with a positioning sinking table, and the rotor barrel is clamped into the positioning sinking table during assembly and is fixed on the end plate surface through a fastening element.
6. The enhanced single-sided cantilever direct drive motor according to claim 5, further comprising a rotor platen fixedly attached to an end of the rotor shaft by a fastening element, and wherein an edge of the rotor platen abuts the center ring.
7. The enhanced single-sided cantilever direct drive motor according to claim 2, wherein the stator includes a core and a stator winding, the stator winding being wound around the periphery of the core, the core being positioned on the stator housing surface after assembly.
8. The enhanced single-sided cantilevered direct drive motor of claim 1 wherein said positioning ring is further provided with a stop rim which is shielded outside said intermediate bearing after assembly.
9. The enhanced single-sided cantilever direct drive motor according to claim 1, wherein the stator core length exceeds 400mm.
10. The enhanced single-sided cantilever direct drive motor according to claim 1, further comprising a protective cover, wherein the opening of the protective cover is fixedly connected to the edge of the connection base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310971815.3A CN117060634A (en) | 2023-08-03 | 2023-08-03 | Enhancement type unilateral cantilever type direct-drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310971815.3A CN117060634A (en) | 2023-08-03 | 2023-08-03 | Enhancement type unilateral cantilever type direct-drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117060634A true CN117060634A (en) | 2023-11-14 |
Family
ID=88668469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310971815.3A Pending CN117060634A (en) | 2023-08-03 | 2023-08-03 | Enhancement type unilateral cantilever type direct-drive motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117060634A (en) |
-
2023
- 2023-08-03 CN CN202310971815.3A patent/CN117060634A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3136548B1 (en) | Axial air-gap rotary electric machine | |
| CN111470440B (en) | Permanent magnet motor built-in mining explosion-proof lifting equipment | |
| KR101120570B1 (en) | A process for mounting magnets in an electric motor rotor and electric motor rotor | |
| EP0363305A2 (en) | Combination motor endshield and pump housing | |
| US11285574B2 (en) | Magnetic-hydraulic double-suspension bearing experiment table | |
| US20220403875A1 (en) | Magnetic suspension bearing device, compressor and method of adjusting gap of catcher bearing | |
| EP3940924B1 (en) | Rotor of motor, method for maintaining rotor of motor, motor and wind-power electric generator set | |
| CN117060634A (en) | Enhancement type unilateral cantilever type direct-drive motor | |
| CN210957949U (en) | Inner rotor magnetic sheet structure | |
| CN202296744U (en) | A permanent magnet synchronous gearless tractor for a simply support structure | |
| WO2023087574A1 (en) | Motor framework, stator assembly, motor, compressor, and refrigeration device | |
| CN220492722U (en) | Outer rotor permanent magnet direct drive motor | |
| CN204089365U (en) | The motor of the firm fixed stator of energy | |
| EP0607429B1 (en) | Induction motor of the outer rotor-type | |
| CN220492769U (en) | Motor hoisting structure and direct-drive motor | |
| CN204425059U (en) | Rare earth magnet motor | |
| WO2011114758A1 (en) | Stator and dynamo-electric machine | |
| CN117375276B (en) | Disc motor with outer rotor structure | |
| CN211701795U (en) | Combined support for assembling and disassembling permanent magnet synchronous motor bearing | |
| CN220492723U (en) | Outer rotor structure and outer rotor motor | |
| KR102574791B1 (en) | Rotor with structure to reduce overhang magnetic path and permanent magnet motor including the same | |
| CN212518578U (en) | Rotor unit and hybrid excitation motor | |
| CN112003418B (en) | Magnetic suspension bearing, assembling method thereof and motor | |
| CN220492770U (en) | Axial buffer structure of direct-drive motor | |
| CN215498690U (en) | High-power suspension type permanent magnet direct drive motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |