CN212955499U

CN212955499U - Outer rotor motor and have outer rotor motor's spindle of frame electricity

Info

Publication number: CN212955499U
Application number: CN202021144541.9U
Authority: CN
Inventors: 陈拯民
Original assignee: Tongling Hardcore Technology Co ltd
Current assignee: Huzhou Hardcore Pai Technology Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-04-13
Anticipated expiration: 2030-06-19

Abstract

The utility model relates to an external rotor motor, external rotor motor includes stator, upper rotor and lower rotor, stator, upper rotor and lower rotor coaxial line set up, the stator is the disc, sets up between upper rotor and lower rotor, two disc-shaped terminal surfaces of stator respectively with the inboard relative of upper rotor inboard and lower rotor inboard; the upper rotor is fixedly connected with the lower rotor and is arranged in a manner of rotating relative to the stator. The outer rotor motor and the textile machine electric spindle with the outer rotor motor provided by the embodiment of the utility model have the advantages of stable rotation and small vibration; the spindle of the spinning machine with the outer rotor motor can keep small vibration in a wider speed range; because no transmission mechanism such as belt is needed, no transmission loss, low power consumption, small abrasion of machine parts and low noise are achieved.

Description

Outer rotor motor and have outer rotor motor's spindle of frame electricity

Technical Field

The utility model belongs to the technical field of the frame, concretely relates to external rotor electric machine and have frame electric spindle of external rotor electric machine.

Background

The spindle is one of the main parts for twisting and winding on spinning machine and is an assembly with two-point supported slender revolving shaft as main body. Spindles are provided on the roving frame, the spinning frame and the twisting frame. The quantity and the rotating speed of the spindle directly influence the production capacity of the corresponding process, and the quality of the spindle is closely related to the quality, the power consumption, the environmental noise, the labor productivity and the like of the yarn.

In practical application of a textile mill, a plurality of spindles are driven to rotate by one motor through a transmission device such as a belt, although the power of each spindle is not high, about 10W, considering the power loss of the motor in the process of driving the spindles to rotate through the transmission device, a motor with higher power is still required, so that the overall energy consumption of the textile mill is higher, the energy consumption index is particularly important for the textile industry with low profit margin, and the cost of electric energy in the textile industry accounts for more than 50% of the total cost. Meanwhile, as one motor drives a plurality of spindles simultaneously through a transmission device, the rotating speed of the spindles reaches thousands of revolutions per minute, the spindles are easy to vibrate, and the bobbin can jump during severe vibration, so that the yarn is broken or poorly formed, and a damping structure needs to be configured at the moment. In addition, the high speed rotation of the spindles can contribute to increased noise and wear on the machine parts.

Disclosure of Invention

In order to solve one of the technical problems, the utility model provides an outer rotor electric machine and have spinning machine electric spindle of outer rotor electric machine.

According to one aspect of the present invention, the outer rotor motor comprises a stator, an upper rotor and a lower rotor, the stator, the upper rotor and the lower rotor are coaxially arranged, the stator is disc-shaped and is arranged between the upper rotor and the lower rotor, and two disc-shaped end surfaces of the stator are respectively opposite to the inner side of the upper rotor and the inner side of the lower rotor; the upper rotor is fixedly connected with the lower rotor and is arranged in a manner of rotating relative to the stator.

In an embodiment of the present invention, the stator includes a winding support, a plurality of winding modules, and a shaft rod, the winding support is in a hollow tubular shape, the plurality of winding modules are disposed on a side wall of the winding support along a circumferential direction of the winding support, longitudinal axes of iron cores of the plurality of winding modules are parallel to each other, the shaft rod passes through a hollow portion of the winding support, and the shaft rod is fixedly connected with the winding support.

In an embodiment of the present invention, the winding support is an injection molded part or a non-magnetic metal part having an insulating surface.

In an embodiment of the present invention, the central positions of the two end surfaces of the winding support of the stator are respectively provided with a shaft rod extending along the axis.

In one embodiment of the present invention, the lower rotor includes a lower rotor base, a lower rotor silicon steel ring and a lower rotor magnetic steel, the lower rotor silicon steel ring and the lower rotor coaxial line are disposed on the inner side surface of the lower rotor base, the lower rotor magnetic steel is superposed on the surface of the lower rotor silicon steel ring, and the lower rotor magnetic steel is opposite to one end of the iron core of the plurality of winding modules;

the upper rotor comprises an upper rotor base, an upper rotor silicon steel ring and upper rotor magnetic steel, the upper rotor silicon steel ring is arranged on the inner side surface of the upper rotor base along with the coaxial line of the upper rotor, the upper rotor magnetic steel is superposed on the surface of the upper rotor silicon steel ring, and the upper rotor magnetic steel is opposite to the other end of the iron core of the winding modules.

In one embodiment of the present invention, the lower rotor base is disc-shaped, the inner side surface of the lower rotor base is provided with a lower rotor annular side wall, the inner diameter of the lower rotor annular side wall is substantially equal to the outer diameter of the lower rotor silicon steel ring, the lower rotor silicon steel ring is fixed at the bottom of the lower rotor annular side wall, and the superposed lower rotor silicon steel ring and the lower rotor magnetic steel do not exceed the lower rotor annular side wall;

the upper rotor base is disc-shaped, an upper rotor annular side wall is arranged on the inner side surface of the upper rotor base, the inner diameter of the upper rotor annular side wall is approximately equal to the outer diameter of an upper rotor silicon steel ring, the upper rotor silicon steel ring is fixed to the bottom of the upper rotor annular side wall, and the upper rotor silicon steel ring and the upper rotor magnetic steel ring which are overlapped do not exceed the upper rotor annular side wall.

In one embodiment of the present invention, the lower rotor silicon steel ring is fixed on the bottom of the lower rotor annular side wall by bonding; or the lower rotor silicon steel ring is provided with an opening and is fixed at the bottom of the annular side wall of the lower rotor in a reverse expansion mode;

the upper rotor silicon steel ring is fixedly bonded at the bottom of the annular side wall of the upper rotor; or the upper rotor silicon steel ring is provided with an opening and fixed at the bottom of the annular side wall of the upper rotor in a reverse expansion mode.

In an embodiment of the present invention, the upper rotor annular side wall is further connected to a rotor side wall, and the rotor side wall can be screwed to the outer side of the lower rotor annular side wall.

In one embodiment of the present invention, a first end of the shaft rod passing through the winding support is connected to the upper rotor through a first bearing disposed at an axial center position of the upper rotor base;

and the lower rotor base is provided with a shaft hole, and the second end of the shaft rod penetrating through the winding support is connected with the lower rotor through a second bearing arranged in the shaft hole.

In an embodiment of the present invention, the outer rotor motor further includes a connecting seat, the second end of the shaft rod passing through the winding support passes through the shaft hole, and the shaft rod passing through the shaft hole is connected to the connecting seat.

In an embodiment of the present invention, an outlet channel is provided in the shaft rod, and the electrical lead of the stator can be led out to the connecting seat.

According to another aspect of the utility model, the frame electricity spindle with external rotor electric machine includes as above external rotor electric machine and spindle blade, the spindle blade stretches out towards the outside of upper rotor with the fixed connection of last rotor coaxial line, the spindle blade can follow upper rotor rotates with lower rotor together.

The utility model has the advantages that: the embodiment of the utility model provides an external rotor electric machine and the frame electric spindle that has external rotor electric machine have rotate steady, the little advantage of vibration. The embodiment of the utility model provides a frame electric spindle with external rotor motor can keep less vibration in a wider speed range; because no transmission mechanism such as belt is needed, no transmission loss, low power consumption, small abrasion of machine parts and low noise are achieved.

Drawings

Fig. 1 is a part assembly view of a spindle of a spinning machine having an outer rotor motor according to an embodiment of the present invention.

Fig. 2 is a front view of an electric spindle of a textile machine with an outer rotor motor according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of an electric spindle of a textile machine having an outer rotor motor according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the present invention is not limited to the drawings and the following embodiments.

As used herein, the term "include" and its various variants are to be understood as open-ended terms, which mean "including, but not limited to. The terms "inner", "outer", "upper", "lower" and the like are used only to indicate a positional relationship between relative objects. The terms "first", "second" and the like are used merely to indicate different technical features and have no essential meaning.

The utility model provides a frame electric spindle with external rotor electric machine, including stator 1, go up rotor 2, lower rotor 3 and spindle pole 4. The stator 1, the upper rotor 2, the lower rotor 3 and the spindle blade 4 are coaxially arranged. The stator 1 is disc-shaped and is arranged between the upper rotor 2 and the lower rotor 3, and two disc-shaped end surfaces of the stator 1 are respectively opposite to the inner side of the upper rotor 2 and the inner side of the lower rotor 3. The upper rotor 2 is fixedly connected with the lower rotor 3 and is rotatably arranged relative to the stator 1. The spindle 4 is fixedly connected to the upper rotor 2 and extends out of the upper rotor 2, and the spindle 4 can rotate along with the upper rotor 2 and the lower rotor 3.

Specifically, as shown in fig. 1-3, the utility model discloses a frame electricity spindle with external rotor electric machine includes stator 1, last rotor 2, lower rotor 3, spindle pole 4 and connecting seat 5, stator 1, last rotor 2, lower rotor 3 and spindle pole 4 coaxial line set up.

The stator 1 is disc-shaped and comprises a winding carrier 11, a plurality of winding modules 12 and a shaft 13. The winding support 11 is hollow and tubular, the plurality of winding modules 12 are arranged on the side wall of the winding support 11 along the circumferential direction of the winding support 11, and the longitudinal axes of the iron cores 121 of the plurality of winding modules 12 are parallel to each other. The shaft 13 penetrates through the hollow part of the winding support 11, and the shaft 13 is fixedly connected with the winding support 11. Thereby, the shaft 13 is fixed with the winding support 11, and both ends of the shaft 13 are used for rotatably connecting the upper rotor 2 and the lower rotor 3. Wherein the shaft 13 is preferably a stainless steel piece; the winding support 11 is preferably an injection molded part, or the winding support 11 is preferably a non-magnetic metal part with an insulating surface, for example, the winding support 11 is a cast aluminum part, the surface of the winding support 11 is anodized, or the winding support 11 is a powder metallurgy stainless steel part, and the surface of the winding support 11 is insulated and sprayed with plastic.

Those skilled in the art will appreciate that the structure of the stator 1 of the present embodiment is merely an example, for example, the shaft 13 and the hollow tubular winding support 11 are not required to be provided, and the shaft extending along the axis may be provided only at the center position of the two end surfaces of the winding support 11 of the stator 1, respectively, and the same function may be achieved.

The stator 1 is arranged between the upper rotor 2 and the lower rotor 3, and two disc-shaped end surfaces of the stator 1 are respectively opposite to the inner side of the upper rotor 2 and the inner side of the lower rotor 3.

The lower rotor 3 comprises a lower rotor base 31, a lower rotor silicon steel ring 32 and lower rotor magnetic steel 33, the lower rotor silicon steel ring 32 and the lower rotor 3 are arranged on the inner side surface of the lower rotor base 31 in a coaxial mode, the lower rotor magnetic steel 33 is superposed on the surface of the lower rotor silicon steel ring 32, and the lower rotor magnetic steel 33 is opposite to one end of the iron core 121 of the winding modules 12. In this embodiment, preferably, the lower rotor base 31 is in a disk shape, the inner side surface of the lower rotor base 31 is provided with a lower rotor annular side wall 311, the inner diameter of the lower rotor annular side wall 311 is approximately equal to the outer diameter of the lower rotor silicon steel ring 32, the lower rotor silicon steel ring 32 is bonded and fixed at the bottom of the lower rotor annular side wall 311, or the lower rotor silicon steel ring 32 is provided with an opening and fixed at the bottom of the lower rotor annular side wall 311 in a reverse expansion manner. The stacked lower rotor silicon steel ring 32 and lower rotor magnetic steel 33 do not extend beyond the lower rotor annular sidewall 311.

Similar with lower rotor 3's structure, it includes rotor base 21, upper rotor silicon steel ring 22 and upper rotor magnet steel 23 to go up rotor 2, the setting of upper rotor silicon steel ring 22 and upper rotor 2 coaxial line is in on the inboard surface of upper rotor base 21, go up rotor magnet steel 23 superpose and be in upper rotor silicon steel ring 22 surface, it is relative with the other end of the iron core 121 of a plurality of winding modules 12 to go up rotor magnet steel 23. In this embodiment, it is preferable that the upper rotor base 21 has a disk shape, an upper rotor annular side wall 211 is provided on an inner surface of the upper rotor base 21, an inner diameter of the upper rotor annular side wall 211 is substantially equal to an outer diameter of the upper rotor silicon steel ring 22, and the upper rotor silicon steel ring 22 is bonded and fixed to a bottom of the upper rotor annular side wall 211, or an opening is provided in the upper rotor silicon steel ring 22 and fixed to a bottom of the upper rotor annular side wall 211 in a counter-expansion manner. The stacked upper rotor silicon steel ring 22 and upper rotor magnetic steel 23 do not extend beyond the upper rotor annular side wall 211.

The upper rotor 2 is fixedly connected with the lower rotor 3, in this embodiment, the upper rotor annular side wall 211 is further connected with a rotor side wall 6, and the rotor side wall 6 can be screwed on the outer side of the lower rotor annular side wall 311, so that the upper rotor 2 and the lower rotor 3 are fixed together.

The upper rotor 2 and the lower rotor 3 are rotatably disposed with respect to the stator 1. In this embodiment, the shaft 13 passes through the first end of the winding support 11 and is connected to the upper rotor 2 through the first bearing 24 disposed at the axial center of the upper rotor base 21. The lower rotor base 31 is provided with a shaft hole 312, and the shaft 13 passes through the second end of the winding support 11 and is connected with the lower rotor 2 through a second bearing 34 arranged in the shaft hole 312, so that the upper rotor 2 and the lower rotor 3 which are fixed together can rotate relative to the stator 1.

In addition, the shaft 13 passes through the second end of the winding support 11 and out of the shaft hole 312, the shaft 13 passing out of the shaft hole 312 is connected to the connecting base 5, and the connecting base 5 can fix the motor/electric spindle to a use position.

In order to lead the electrical lines 7 of the stator 1 out of the motor/spindle, a line outlet channel 131 is provided in the shaft 13, which enables the electrical lines 7 of the stator 1 to be led out to the connecting socket 5.

The spindle 4 is fixedly connected to the upper rotor 2 and extends out of the upper rotor 2, and the spindle 4 can rotate along with the upper rotor 2 and the lower rotor 3.

The utility model discloses the frame electric spindle has the external rotor motor, compares with the internal rotor motor, rotates more steadily, and vibrations are less.

The outer rotor motor is used in the spindle of the above embodiment of the present invention, and those skilled in the art can understand that the outer rotor motor is not limited to be applied to the spindle of the textile machine, therefore, the embodiment of the present invention further provides an outer rotor motor with the above structure, the outer rotor motor includes a stator 1, an upper rotor 2 and a lower rotor 3, the stator 1, the upper rotor 2 and the lower rotor 3 are coaxially disposed, the stator 1 is in a disc shape and disposed between the upper rotor 2 and the lower rotor 3, and two disc-shaped end surfaces of the stator 1 are respectively opposite to the inner side of the upper rotor 2 and the inner side of the lower rotor 3; the upper rotor 2 is fixedly connected with the lower rotor 3 and is rotatably arranged relative to the stator 1.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The outer rotor motor is characterized by comprising a stator (1), an upper rotor (2) and a lower rotor (3), wherein the stator (1), the upper rotor (2) and the lower rotor (3) are coaxially arranged;

the stator (1) is disc-shaped and is arranged between the upper rotor (2) and the lower rotor (3), and two disc-shaped end surfaces of the stator (1) are opposite to the inner side of the upper rotor (2) and the inner side of the lower rotor (3) respectively;

the upper rotor (2) is fixedly connected with the lower rotor (3) and is arranged in a rotatable manner relative to the stator (1).

2. The external rotor electric machine according to claim 1, wherein the stator (1) comprises a winding support (11), a plurality of winding modules (12) and a shaft rod (13), the winding support (11) is in a hollow tubular shape, the plurality of winding modules (12) are arranged on the side wall of the winding support (11) along the circumferential direction of the winding support (11), the longitudinal axes of the iron cores (121) of the plurality of winding modules (12) are parallel to each other, the shaft rod (13) penetrates through the hollow part of the winding support (11), and the shaft rod (13) is fixedly connected with the winding support (11).

3. The external rotor electric machine according to claim 2, characterised in that the winding carriers (11) are injection-moulded parts or non-magnetically conductive metal parts with insulating surfaces.

4. The external rotor electric machine according to claim 1, characterised in that the central position of the two end faces of the winding frame (11) of the stator (1) is provided with a shaft extending along the axis.

5. The external rotor electric machine according to claim 2, wherein the lower rotor (3) comprises a lower rotor base (31), a lower rotor silicon steel ring (32) and a lower rotor magnetic steel (33), the lower rotor silicon steel ring (32) and the lower rotor (3) are coaxially arranged on the inner side surface of the lower rotor base (31), the lower rotor magnetic steel (33) is superposed on the surface of the lower rotor silicon steel ring (32), and the lower rotor magnetic steel (33) is opposite to one end of the iron core (121) of the plurality of winding modules (12);

go up rotor (2) and include rotor base (21), last rotor silicon steel ring (22) and last rotor magnet steel (23), last rotor silicon steel ring (22) is in with the setting of last rotor (2) coaxial line on the inboard surface of going up rotor base (21), it is in to go up rotor magnet steel (23) superpose last rotor silicon steel ring (22) surface, last rotor magnet steel (23) are relative with the other end of iron core (121) of a plurality of winding modules (12).

6. The external rotor electric machine of claim 5, wherein the lower rotor base (31) is disc-shaped, a lower rotor annular side wall (311) is arranged on the inner side surface of the lower rotor base (31), the inner diameter of the lower rotor annular side wall (311) is approximately equal to the outer diameter of the lower rotor silicon steel ring (32), the lower rotor silicon steel ring (32) is fixed at the bottom of the lower rotor annular side wall (311), and the superposed lower rotor silicon steel ring (32) and lower rotor magnetic steel (33) do not exceed the lower rotor annular side wall (311);

go up rotor base (21) and be discoid, be provided with upper rotor annular lateral wall (211) on the inboard surface of going up rotor base (21), the internal diameter of going up rotor annular lateral wall (211) is roughly equal with the external diameter of upper rotor silicon steel ring (22), upper rotor silicon steel ring (22) are fixed in the bottom of last rotor annular lateral wall (211), and superpose upper rotor silicon steel ring (22) and upper rotor magnet steel (23) do not surpass upper rotor annular lateral wall (211).

7. The external rotor electric machine according to claim 6, characterized in that the lower rotor silicon steel ring (32) is adhesively fixed to the bottom of the lower rotor annular side wall (311); or the lower rotor silicon steel ring (32) is provided with an opening and fixed at the bottom of the lower rotor annular side wall (311) in a reverse expansion mode;

the upper rotor silicon steel ring (22) is fixedly bonded to the bottom of the annular side wall (211) of the upper rotor; or the upper rotor silicon steel ring (22) is provided with an opening and fixed at the bottom of the annular side wall (211) of the upper rotor in a mode of reversely expanding.

8. The external rotor electric machine according to claim 6, characterized in that a rotor side wall (6) is also connected to the upper rotor annular side wall (211), the rotor side wall (6) being screwable on the outside of the lower rotor annular side wall (311).

9. The external rotor electric machine according to claim 5, characterized in that the first end of the shaft (13) passing through the winding frame (11) is connected to the upper rotor (2) by a first bearing (24) arranged at the axial center of the upper rotor base (21);

the lower rotor base (31) is provided with a shaft hole (312), and the second end of the shaft rod (13) penetrating through the winding support (11) is connected with the lower rotor (3) through a second bearing (34) arranged in the shaft hole (312).

10. The external rotor electric machine according to claim 9, further comprising a connection socket (5), wherein the second end of the shaft (13) passing through the winding support (11) passes through the shaft hole (312), and the shaft (13) passing through the shaft hole (312) is connected to the connection socket (5).

11. The external rotor electric machine according to claim 10, characterised in that an outlet channel (131) is provided in the shaft (13) and can lead out the electrical lines (7) of the stator (1) to the connection sockets (5).

12. An electric spindle of a spinning machine with an outer rotor motor, characterized in that it comprises an outer rotor motor according to one of claims 1 to 11 and a spindle blade (4), said spindle blade (4) being fixedly connected coaxially to the upper rotor (2) and projecting towards the outside of the upper rotor (2), said spindle blade (4) being rotatable together with said upper rotor (2) and lower rotor (3).