CN111064290A - Knife tackle spare and iron core module - Google Patents
Knife tackle spare and iron core module Download PDFInfo
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- CN111064290A CN111064290A CN201811208246.2A CN201811208246A CN111064290A CN 111064290 A CN111064290 A CN 111064290A CN 201811208246 A CN201811208246 A CN 201811208246A CN 111064290 A CN111064290 A CN 111064290A
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- magnetic
- iron core
- rotary cutter
- blocks
- magnetic rotor
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/08—Driving mechanisms
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- 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
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- 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
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- 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
- H02K1/187—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to inner stators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a cutter assembly and an iron core module, wherein the cutter assembly comprises a first rotary cutter, a second rotary cutter and a magnetic mechanism, the second rotary cutter and the first rotary cutter are coaxially arranged, the magnetic mechanism comprises a first magnetic rotor, a second magnetic rotor and an iron core module, the first magnetic rotor is connected with the first rotary cutter to drive the first rotary cutter to rotate, the second magnetic rotor is connected with the second rotary cutter to drive the second rotary cutter to rotate, and the iron core module is positioned between the first magnetic rotor and the second magnetic rotor to enable the rotation directions of the first rotary cutter and the second rotary cutter to be opposite; the iron core module includes a plurality of iron core pieces that distribute along circumference, presss from both sides between two adjacent iron core pieces on the circumferential direction and is equipped with the fixed column, and the fixed column overcoat is equipped with the cushion collar. According to the knife assembly provided by the embodiment of the invention, the eddy current generated by the iron core module in the working process is reduced, the heat generation of the iron core module is reduced, the noise is reduced, and the user satisfaction is improved.
Description
Technical Field
The invention relates to the field of wall breaking machine equipment, in particular to a knife assembly and an iron core module.
Background
Broken wall machine on the existing market is mostly unidirectional rotating's knife tackle, realizes cutting and smashing edible material and medicinal material etc. through high-speed rotation, and along with the improvement of rotational speed, the noise also increases thereupon, has become the problem that the user more paid attention to the degree. The existing wall breaking machine knife tackle generates heat more seriously when the rotating speed is faster, and the use experience of a user and the service life of the knife tackle are influenced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the cutter assembly, and the noise of the cutter assembly in the rotating process is low, and the heat generation is relatively low.
The invention further provides the iron core module, and the iron core module is low in heat generation in the rotating process.
A knife assembly according to an embodiment of the invention comprises: a first rotary cutter; a second rotary cutter, the second rotary cutter and the first rotary cutter being coaxially disposed; the magnetic mechanism comprises a first magnetic rotor, a second magnetic rotor and an iron core module, the first magnetic rotor is connected with the first rotary cutter to drive the first rotary cutter to rotate, the second magnetic rotor is connected with the second rotary cutter to drive the second rotary cutter to rotate, and the iron core module is positioned between the first magnetic rotor and the second magnetic rotor to enable the first rotary cutter and the second rotary cutter to rotate in opposite directions; the iron core module comprises a plurality of iron core blocks distributed along the circumferential direction, a fixing column is clamped between every two adjacent iron core blocks in the circumferential direction, and a buffer sleeve is sleeved outside the fixing column.
According to the cutter assembly provided by the embodiment of the invention, the iron core module comprises the plurality of iron core blocks distributed along the circumferential direction, and the fixing column is erected between two adjacent iron core blocks in the circumferential direction, so that the eddy current generated by the iron core module in the working process is reduced, and the heat generation of the iron core module is reduced. In addition, because the cover is equipped with the cushion collar on the fixed column and has avoided the direct contact of iron core piece with the fixed column, has reduced the production of noise.
In some embodiments, the core block includes silicon steel sheets stacked in multiple layers along the axial direction.
In some specific embodiments, the thickness of each layer of silicon steel sheet is d, and d satisfies the following relation: d is more than or equal to 0.1mm and less than or equal to 1 mm.
In some embodiments, the surfaces of two core blocks adjacent to each other in the circumferential direction are provided with matching grooves, the matching grooves penetrate through the core blocks in the axial direction, the projections of the matching grooves on the end surfaces of the core modules are semicircular, and the fixing columns are cylindrical.
In some embodiments, the first magnetic rotor is sleeved on the core module, the first magnetic rotor comprising: the inner periphery of the first rotor sleeve is provided with a plurality of first mounting grooves which are distributed at intervals along the circumferential direction; the first magnetic blocks are installed in the first installation grooves in a one-to-one correspondence mode.
In some embodiments, the second magnetic rotor is disposed inside the core module, the second magnetic rotor comprising: the periphery of the second rotor sleeve is provided with a plurality of second mounting grooves which are distributed at intervals along the circumferential direction; the second magnetic blocks are installed in the second installation grooves in a one-to-one correspondence mode.
In some embodiments, the first magnetic rotor includes a plurality of first magnetic blocks arranged along the circumferential direction, the second magnetic rotor includes a plurality of second magnetic blocks arranged along the circumferential direction, the number of the first magnetic blocks is N1, the number of the second magnetic blocks is N2, the number of the magnetic core blocks is N3, and N1, N2 and N3 satisfy the following relations: 2 × N3 ═ N1+ N2.
In some specific embodiments, both N1 and N2 are even numbers.
According to an embodiment of the present invention, a core module includes: the iron core blocks are multiple and distributed along the circumferential direction; the fixing column is arranged between two adjacent iron core blocks; the buffer sleeve is sleeved on the fixed column; the two end covers are respectively positioned at two axial ends of the iron core block, and each end cover is provided with a positioning hole matched with the fixing column.
According to the iron core module provided by the embodiment of the invention, the iron core module comprises the plurality of iron core blocks distributed along the circumferential direction, and the fixing column is erected between two adjacent iron core blocks in the circumferential direction, so that the eddy current generated by the iron core module in the working process is reduced, and the heat generation of the iron core module is reduced. In addition, because the cover is equipped with the cushion collar on the fixed column and has avoided the direct contact of iron core piece with the fixed column, has reduced the production of noise. In some embodiments, the core block includes silicon steel sheets stacked in multiple layers along the axial direction.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a knife assembly according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a knife assembly according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a core module according to an embodiment of the present invention.
Fig. 4 is an exploded view of the structure shown in fig. 3.
Fig. 5 is a schematic structural view of a core block according to an embodiment of the present invention.
FIG. 6 is a schematic view of the assembly of the first rotary cutter and the first magnetic rotor of the embodiment of the present invention.
Fig. 7 is an exploded view of the structure shown in fig. 6.
FIG. 8 is a schematic view of the assembly of a second rotary cutter with a second magnetic rotor according to an embodiment of the present invention.
Fig. 9 is an exploded view of the structure shown in fig. 8.
Reference numerals:
a knife component 1,
A first rotary cutter 10,
A first cutter shaft 110, a first blade 120, a nut 130, a first oil seal 140, an oil seal 150, a shaft sleeve 160,
A second rotary cutter 20,
A second knife shaft 210, a second blade 220, a screw 230,
A magnetic force mechanism 30,
A first magnetic rotor 310,
A second magnetic rotor 320,
A second rotor bushing 321, a second mounting groove 3211, a second magnetic cover 322, a second magnetic block 323, a,
An iron core module 330,
A core block 331, a matching groove 3311, a fixed column 332, an end cover 333, a buffer sleeve 334,
A housing 40, and a joint 50.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A specific structure of the knife assembly 1 according to the embodiment of the present invention is described below with reference to fig. 1 to 9.
As shown in fig. 1-2 and 4, a cutter assembly 1 according to an embodiment of the present invention includes a first rotary cutter 10, a second rotary cutter 20, and a magnetic mechanism 30, wherein the second rotary cutter 20 and the first rotary cutter 10 are coaxially disposed, the magnetic mechanism 30 includes a first magnetic rotor 310, a second magnetic rotor 320, and an iron core module 330, the first magnetic rotor 310 is connected to the first rotary cutter 10 to rotate the first rotary cutter 10, the second magnetic rotor 320 is connected to the second rotary cutter 20 to rotate the second rotary cutter 20, and the iron core module 330 is located between the first magnetic rotor 310 and the second magnetic rotor 320 to rotate the first rotary cutter 10 and the second rotary cutter 20 in opposite directions. The iron core module 330 includes a plurality of iron core blocks 331 distributed along the circumferential direction, a fixing column 332 is sandwiched between two adjacent iron core blocks 331 in the circumferential direction, and a buffer sleeve 334 is sleeved outside the fixing column 332.
It can be understood that, during the rotation of the first and second magnetic rotors 310 and 320, an eddy current electric field is generated inside the core module 330, so that the core module 330 generates heat. The broken wall machine knife tackle that adopts magnetic rotor among the prior art adopts a complete iron core more, and this kind of structure has guaranteed the interact between two magnetic rotor, nevertheless because the iron core is complete structure, the vortex of production is great to it is comparatively serious to make generating heat of iron core. The iron core module 330 of the embodiment of the invention comprises a plurality of iron core blocks 331 distributed along the circumferential direction, and the partitioning structure can reduce eddy current generated by the iron core module 330 under the action of a magnetic field, so that the heat generation of the iron core module 330 in the working process is reduced.
In addition, because a fixing column 332 is erected between two iron core blocks 331 adjacent in the circumferential direction, a buffer sleeve 334 is sleeved outside the fixing column 332. Since the core module 330 is composed of a plurality of core blocks 331, the core blocks 331 are subject to magnetic field force during rotation of the first and second magnetic rotors 310 and 320, and may periodically flap the fixing posts 332 to generate noise. Therefore, the buffer sleeve 334 is sleeved on the fixed column 332, so that the direct contact between the iron core block 331 and the fixed column 332 is avoided, and the noise is reduced. In addition, the buffer sleeve 334 can reduce the vibration of the core block 331, thereby reducing the noise of the core module 330 during operation.
According to the knife assembly 1 of the embodiment of the invention, the iron core module 330 comprises the plurality of iron core blocks 331 distributed along the circumferential direction, and the fixing column 332 is erected between two adjacent iron core blocks 331 in the circumferential direction, so that the eddy current generated by the iron core module 330 in the working process is reduced, and the heat generation of the iron core module 330 is reduced. In addition, because the fixed column 332 is sleeved with the buffer sleeve 334, the direct contact between the iron core block 331 and the fixed column 332 is avoided, and the noise is reduced.
In some embodiments, as shown in fig. 5, the core block 331 includes silicon steel sheets stacked in multiple layers in the axial direction. It can be understood that the iron core block 331 is formed into a multi-layer superposed silicon steel sheet structure, eddy current generated inside the iron core block 331 is reduced, and the heat generation of the iron core block 331 is greatly reduced, so that the loss of the iron core block 331 is reduced, and the service life of the knife assembly 1 is prolonged.
In some specific embodiments, the thickness of each silicon steel sheet is d, and d satisfies the relation: d is more than or equal to 0.1mm and less than or equal to 1 mm. It can be understood that the thinner the thickness of the silicon steel sheet, the smaller the heat generation amount, but the thinner the thickness of the silicon steel sheet, the more difficult the production. After a plurality of tests, when the thickness of each layer of silicon steel sheet is controlled between 0.1mm and 1mm, the heating of the iron core block 331 can be greatly reduced, and the production cost of the iron core block 331 can be controlled. Of course, in other embodiments of the present invention, the thickness of each silicon steel sheet can be selected according to practical situations, and is not limited to the above range.
In some embodiments, as shown in fig. 4 to 5, the surfaces facing each other of the two core blocks 331 adjacent to each other in the circumferential direction form fitting grooves 3311, the fitting grooves 3311 penetrate the core blocks 331 in the axial direction, the projections of the fitting grooves 3311 on the end surfaces of the core modules 330 are semicircular, and the fixing posts 332 are cylindrical. It is understood that the fixing posts 332 fitted in the fitting grooves 3311 can ensure the stability of the core block 331 in the circumferential direction well, reducing the vibration of the core block 331 in the circumferential direction. Further, since the fixing posts 332 are cylindrical, and the projection of the fitting grooves 3311 on the end surface of the core module 330 is semicircular, such a shape better secures the stability of the plurality of core blocks 331 in the circumferential direction. Of course, in other embodiments of the present invention, the fitting groove 3311 and the fixing post 332 may be formed in any other shapes, and are not limited to the above shapes.
In some embodiments, as shown in fig. 2, 6-7, the first magnetic rotor 310 is sleeved on the iron core module 330, the first magnetic rotor 310 includes a first rotor sleeve 311 and a plurality of first magnetic blocks 313, an inner circumference of the first rotor sleeve 311 is provided with a plurality of first mounting grooves 3111 distributed at intervals along a circumferential direction, and the plurality of first magnetic blocks 313 are mounted in the plurality of first mounting grooves 3111 in a one-to-one correspondence. It can be appreciated that the first magnetic rotor 310 includes the first rotor cover 311 and the plurality of first magnetic blocks 313, which ensures both structural stability of the first magnetic rotor 310 and an effect of the magnetic field of the first magnetic rotor 310 on the core module 330. In addition, the first magnetic rotor 310 is externally sleeved on the core module 330, and the plurality of first magnetic blocks 313 are mounted on the inner circumference of the first rotor sleeve 311, that is, the circumferential surface of the first magnetic blocks 313 directly faces the circumferential surface of the core module 330, which further ensures the effect of the magnetic field of the first magnetic rotor 310 on the core module 330. Of course, in other embodiments of the present invention, the first magnetic rotor 310 may not be provided with the first rotor cover 311, and the first magnetic rotor 310 is directly formed by splicing the plurality of first magnetic blocks 313.
In some embodiments, as shown in fig. 2, 8-9, the second magnetic rotor 320 is disposed inside the core module 330, the second magnetic rotor 320 includes a second rotor sleeve 321 and a plurality of second magnetic blocks 323, the second rotor sleeve 321 is provided with a plurality of second mounting grooves 3211 at intervals along the circumferential direction on the outer circumference, and the plurality of second magnetic blocks 323 are mounted in the plurality of second mounting grooves 3211 in a one-to-one correspondence manner. It can be understood that the second magnetic rotor 320 includes a second rotor housing 321 and a plurality of second magnetic blocks 323, which can ensure structural stability of the second magnetic rotor 320 and ensure that the magnetic field of the second magnetic rotor 320 acts on the iron core module 330. In addition, the second magnetic rotor 320 is disposed inside the core module 330, and the plurality of second magnetic blocks 323 are mounted on the outer circumference of the second rotor case 321, that is, the circumferential surface of the second magnetic blocks 323 directly faces the circumferential surface of the core module 330, so that the effect of the magnetic field of the second magnetic rotor 320 on the core module 330 is further ensured. Of course, in other embodiments of the present invention, the second magnetic rotor 320 may not be provided with the second rotor sleeve 321, and the second magnetic rotor 320 is directly formed by splicing a plurality of second magnetic blocks 323.
In some embodiments, the first magnetic rotor 310 includes a plurality of first magnetic blocks 313 arranged along the circumferential direction, the second magnetic rotor 320 includes a plurality of second magnetic blocks 323 arranged along the circumferential direction, the number of the first magnetic blocks 313 is N1, the number of the second magnetic blocks 323 is N2, the number of the iron core blocks 331 is N3, and N1, N2 and N3 satisfy the following relations: 2 × N3 ═ N1+ N2. It can be understood that the number of the iron core blocks 331 is equal to the sum of the numbers of the first magnetic blocks 313 and the second magnetic blocks 323, so that the effect of the magnetic fields of the first magnetic rotor 310 and the second magnetic rotor 320 on the iron core blocks 331 can be better ensured, the stable rotation of the first rotary cutter 10 and the second rotary cutter 20 is ensured, and the segmentation effect of the cutter assembly 1 is improved. Advantageously, both N1 and N2 are even numbers. Of course, in other embodiments of the present invention, N1, N2, and N3 may be selected according to practical circumstances and are not limited to the above relationships.
Example (b):
the structure of the knife assembly 1 according to one embodiment of the present invention will be described below with reference to fig. 1 to 9.
As shown in fig. 1 to 2, the knife assembly 1 of the present embodiment includes a housing 40, a first rotary cutter 10, a second rotary cutter 20, and a magnetic mechanism 30. The second rotary cutter 20 and the first rotary cutter 10 are coaxially arranged, the first cutter shaft 110 is sleeved on the second cutter shaft 210, the first rotary cutter 10 comprises the first cutter shaft 110 and a first blade 120 connected to the first cutter shaft 110, and the second rotary cutter 20 comprises the second cutter shaft 210 and a second blade 220 connected to the second cutter shaft 210. The first blade 120 and the second blade 220 are located outside the housing 40, the magnetic mechanism 30 is located inside the housing 40, the first blade 120 is located below the second blade 220, the second blade 220 is locked at the top end of the second cutter shaft 210 through a screw 230, the first blade 120 is locked on the first cutter shaft 110 through a nut 130, a groove surrounding the first cutter shaft 110 is arranged on the end surface of the nut 130 facing the second blade 220, a first oil seal 140 is arranged in the groove, the first cutter shaft 110 is arranged on the housing 40 in a penetrating manner, a second oil seal 150 and a shaft sleeve 160 are further arranged at the matching position of the first cutter shaft 110 and the housing 40, and a connector 50 connected with a motor is arranged at the bottom of the first cutter shaft 110.
As shown in fig. 2, the magnetic mechanism 30 includes a first magnetic rotor 310, a second magnetic rotor 320, and an iron core module 330, the first magnetic rotor 310 is connected to the first cutter shaft 110 to rotate the first blade 120, the second magnetic rotor 320 is connected to the second cutter shaft 210 to rotate the second blade 220, and the iron core module 330 is located between the first magnetic rotor 310 and the second magnetic rotor 320 to reverse the rotation directions of the first rotary cutter 10 and the second rotary cutter 20.
As shown in fig. 6 to 7, the first magnetic rotor 310 is sleeved on the core module 330, the first magnetic rotor 310 includes a first rotor sleeve 311, two first magnetic covers 312 and a plurality of first magnetic blocks 313, the inner circumference of the first rotor sleeve 311 is provided with a plurality of first mounting grooves 3111 distributed at intervals along the circumferential direction, the plurality of first magnetic blocks 313 are mounted in the plurality of first mounting grooves 3111 in a one-to-one correspondence manner, and the two first magnetic covers 312 are respectively fastened at two axial ends of the first rotor sleeve 311 to prevent the first magnetic blocks 313 from moving axially in the first mounting grooves 3111. As shown in fig. 8 to 9, the second magnetic rotor 320 is disposed inside the core module 330, the second magnetic rotor 320 includes a second rotor sleeve 321, two second magnetic covers 322 and a plurality of second magnetic blocks 323, the second rotor sleeve 321 is provided at the periphery thereof with a plurality of second mounting grooves 3211 distributed at intervals along the circumferential direction, the plurality of second magnetic blocks 323 are mounted in the plurality of second mounting grooves 3211 in a one-to-one correspondence manner, and the two second magnetic covers 322 are respectively fastened to two axial ends of the second rotor sleeve 321 to prevent the second magnetic blocks 323 from moving axially in the second mounting grooves 3211. As shown in fig. 3 to 5, the iron core module 330 includes a plurality of iron core blocks 331 distributed along the circumferential direction, a fixing column 332 is interposed between two adjacent iron core blocks 331 in the circumferential direction, and a buffer sleeve 334 is sleeved outside the fixing column 332. The surfaces of two circumferentially adjacent core blocks 331 facing each other form fitting grooves 3311, the fitting grooves 3311 axially penetrate the core blocks 331, the projections of the fitting grooves 3311 on the end surfaces of the core modules 330 are semicircular, and the fixing posts 332 are cylindrical.
The number of the first magnetic blocks 313 is N1, the number of the second magnetic blocks 323 is N2, the number of the iron core blocks 331 is N3, and N1, N2 and N3 satisfy the following relational expression: 2 × N3 ═ N1+ N2.
A core module according to an embodiment of the present invention is described below with reference to fig. 3 to 5.
As shown in fig. 3 to 5, the core module 330 according to an embodiment of the present invention includes a plurality of core blocks 331, fixing columns 332, a buffer housing 334, and two end caps 333. The plurality of iron core blocks 331 are distributed along the circumferential direction, the fixing columns 332 are arranged between two adjacent iron core blocks 331, the buffer sleeves 334 are sleeved on the fixing columns 332, the two end covers 333 are respectively located at two axial ends of the iron core blocks 331, and each end cover 333 is provided with a positioning hole matched with the fixing column 332.
It can be understood that, since the core module 330 according to the embodiment of the present invention includes a plurality of core blocks 331 distributed along the circumferential direction, the partitioning structure can reduce the eddy current generated by the core module 330 under the action of the magnetic field, thereby reducing the heat generation of the core module 330 during the operation. In addition, because a fixing column 332 is erected between two iron core blocks 331 adjacent in the circumferential direction, a buffer sleeve 334 is sleeved outside the fixing column 332. Since the core block 330 is composed of a plurality of core blocks 331, the core blocks 331 are subject to magnetic field force during the rotation of the first and second magnetic rotors 310 and 320, and may periodically flap the fixed shaft to generate noise. Therefore, the buffer sleeve 334 is sleeved on the fixed column 332, so that the direct contact between the iron core block 331 and the fixed column 332 is avoided, and the noise is reduced. In addition, the buffer sleeve 334 can reduce the vibration of the core block 331, thereby reducing the noise of the core module 330 during operation.
According to the iron core module 330 of the embodiment of the invention, the iron core module 330 comprises the plurality of iron core blocks 331 distributed along the circumferential direction, and the fixing column 332 is erected between two adjacent iron core blocks 331 in the circumferential direction, so that the eddy current generated by the iron core module 330 in the working process is reduced, and the heat generation of the iron core module 330 is reduced. In addition, because the fixed column 332 is sleeved with the buffer sleeve 334, the direct contact between the iron core block 331 and the fixed column 332 is avoided, and the noise is reduced.
In some embodiments, the core block 331 includes silicon steel sheets stacked in multiple layers in the axial direction. It can be understood that the iron core block 331 is formed into a multi-layer superposed silicon steel sheet structure, eddy current generated inside the iron core block 331 is reduced, and the heat generation of the iron core block 331 is greatly reduced, so that the loss of the iron core block 331 is reduced, and the service life of the knife assembly 1 is prolonged.
Example (b):
a core module 330 according to one embodiment of the present invention is described below with reference to fig. 3-5.
As shown in fig. 3 to 5, the core module 330 of the present embodiment includes a plurality of core blocks 331, fixing posts 332, a buffer sleeve 334, and two end caps 333. The plurality of iron core blocks 331 are distributed along the circumferential direction, the fixing columns 332 are arranged between two adjacent iron core blocks 331, the buffer sleeves 334 are sleeved on the fixing columns 332, the two end covers 333 are respectively located at two axial ends of the iron core blocks 331, and each end cover 333 is provided with a positioning hole matched with the fixing column 332.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A knife assembly, comprising:
a first rotary cutter;
a second rotary cutter, the second rotary cutter and the first rotary cutter being coaxially disposed;
the magnetic mechanism comprises a first magnetic rotor, a second magnetic rotor and an iron core module, the first magnetic rotor is connected with the first rotary cutter to drive the first rotary cutter to rotate, the second magnetic rotor is connected with the second rotary cutter to drive the second rotary cutter to rotate, and the iron core module is positioned between the first magnetic rotor and the second magnetic rotor to enable the first rotary cutter and the second rotary cutter to rotate in opposite directions; the iron core module comprises a plurality of iron core blocks distributed along the circumferential direction, a fixing column is clamped between every two adjacent iron core blocks in the circumferential direction, and a buffer sleeve is sleeved outside the fixing column.
2. The knife assembly according to claim 1, wherein the core blocks comprise silicon steel sheets stacked in multiple layers in an axial direction.
3. The knife assembly according to claim 2, wherein the thickness of each layer of silicon steel sheet is d, and d satisfies the relation: d is more than or equal to 0.1mm and less than or equal to 1 mm.
4. The knife assembly according to claim 1, wherein the surfaces facing each other of two circumferentially adjacent core blocks form mating grooves which axially penetrate the core blocks, the projections of the mating grooves on the end surfaces of the core modules are semicircular, and the fixing posts are cylindrical.
5. The knife assembly of claim 1, wherein the first magnetic rotor is sheathed on the core module, the first magnetic rotor comprising:
the inner periphery of the first rotor sleeve is provided with a plurality of first mounting grooves which are distributed at intervals along the circumferential direction;
the first magnetic blocks are installed in the first installation grooves in a one-to-one correspondence mode.
6. The knife assembly of claim 1, wherein the second magnetic rotor is disposed inside the core module, the second magnetic rotor comprising:
the periphery of the second rotor sleeve is provided with a plurality of second mounting grooves which are distributed at intervals along the circumferential direction;
the second magnetic blocks are installed in the second installation grooves in a one-to-one correspondence mode.
7. The knife assembly of claim 1, wherein the first magnetic rotor comprises a plurality of first magnetic blocks arranged along the circumferential direction, the second magnetic rotor comprises a plurality of second magnetic blocks arranged along the circumferential direction, the number of the first magnetic blocks is N1, the number of the second magnetic blocks is N2, the number of the magnetic core blocks is N3, and the relations of N1, N2 and N3 are satisfied: 2 × N3 ═ N1+ N2.
8. The knife assembly of claim 7, wherein both N1 and N2 are even numbers.
9. A core module, comprising:
the iron core blocks are multiple and distributed along the circumferential direction;
the fixing column is arranged between two adjacent iron core blocks;
the buffer sleeve is sleeved on the fixed column;
the two end covers are respectively positioned at two axial ends of the iron core block, and each end cover is provided with a positioning hole matched with the fixing column.
10. The core module of claim 9 wherein the core blocks comprise silicon steel sheets stacked in multiple layers in an axial direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208246.2A CN111064290B (en) | 2018-10-17 | 2018-10-17 | Knife tackle spare and iron core module |
| PCT/CN2018/122530 WO2020077812A1 (en) | 2018-10-17 | 2018-12-21 | Cutter assembly and iron core module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208246.2A CN111064290B (en) | 2018-10-17 | 2018-10-17 | Knife tackle spare and iron core module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111064290A true CN111064290A (en) | 2020-04-24 |
| CN111064290B CN111064290B (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811208246.2A Active CN111064290B (en) | 2018-10-17 | 2018-10-17 | Knife tackle spare and iron core module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111064290B (en) |
| WO (1) | WO2020077812A1 (en) |
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| CN202602393U (en) * | 2012-04-20 | 2012-12-12 | 湖州永昌贝诗讬电器实业有限公司 | Insertion slot-type stator core |
| DE102012101757A1 (en) * | 2012-03-02 | 2013-09-05 | Vorwerk & Co. Interholding Gmbh | Electric motor for use in electrically operated food processor, has stator, where air flows through motor interior on stator inner side in flow direction and radially and outwardly disperses above stator and/or rotor |
| CN104882995A (en) * | 2015-06-17 | 2015-09-02 | 东莞市金霸电机制造有限公司 | Double-shaft motor |
| CN106464105A (en) * | 2014-04-30 | 2017-02-22 | 阿莫泰克有限公司 | Washing Machine Driving Apparatus And Washing Machine Including Same |
| CN108390478A (en) * | 2018-05-31 | 2018-08-10 | 广东美芝制冷设备有限公司 | Stator core, Stator and electrical machine |
| CN108400689A (en) * | 2018-05-17 | 2018-08-14 | 林峭 | A kind of double winding double-rotor machine and double-pole cooking machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5849075A (en) * | 1982-09-01 | 1983-03-23 | Matsushita Electric Ind Co Ltd | Stator for miniature motor |
| CN102599811B (en) * | 2012-01-15 | 2014-05-14 | 朱幕松 | Magnetic coupling water lubrication soybean milk maker without shaft seal |
| CN206651757U (en) * | 2016-11-08 | 2017-11-21 | 王雄才 | Double-pole stirs soy bean milk making machine |
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2018
- 2018-10-17 CN CN201811208246.2A patent/CN111064290B/en active Active
- 2018-12-21 WO PCT/CN2018/122530 patent/WO2020077812A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012101757A1 (en) * | 2012-03-02 | 2013-09-05 | Vorwerk & Co. Interholding Gmbh | Electric motor for use in electrically operated food processor, has stator, where air flows through motor interior on stator inner side in flow direction and radially and outwardly disperses above stator and/or rotor |
| CN202602393U (en) * | 2012-04-20 | 2012-12-12 | 湖州永昌贝诗讬电器实业有限公司 | Insertion slot-type stator core |
| CN106464105A (en) * | 2014-04-30 | 2017-02-22 | 阿莫泰克有限公司 | Washing Machine Driving Apparatus And Washing Machine Including Same |
| CN104882995A (en) * | 2015-06-17 | 2015-09-02 | 东莞市金霸电机制造有限公司 | Double-shaft motor |
| CN108400689A (en) * | 2018-05-17 | 2018-08-14 | 林峭 | A kind of double winding double-rotor machine and double-pole cooking machine |
| CN108390478A (en) * | 2018-05-31 | 2018-08-10 | 广东美芝制冷设备有限公司 | Stator core, Stator and electrical machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020077812A1 (en) | 2020-04-23 |
| CN111064290B (en) | 2021-06-18 |
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