CN111588283B - Low-noise food processing machine - Google Patents
Low-noise food processing machine Download PDFInfo
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- CN111588283B CN111588283B CN201911065015.5A CN201911065015A CN111588283B CN 111588283 B CN111588283 B CN 111588283B CN 201911065015 A CN201911065015 A CN 201911065015A CN 111588283 B CN111588283 B CN 111588283B
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- 238000007789 sealing Methods 0.000 claims description 34
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Classifications
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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
- A47J43/046—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side
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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
- A47J43/0716—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the lower side
-
- 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
- A47J43/0716—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the lower side
- A47J43/0722—Mixing, whipping or cutting tools
-
- 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
- A47J43/085—Driving mechanisms for machines with tools driven from the lower side
Abstract
The invention discloses a low-noise food processing machine which comprises a motor, a stirring cup and a crushing knife arranged at the bottom of the stirring cup, wherein the crushing knife comprises a blade and a knife shaft, the bottom of the stirring cup is provided with a mounting hole for mounting a shaft sleeve, the knife shaft penetrates through the shaft sleeve to be in transmission fit with a motor shaft of the motor, the shaft sleeve comprises a rigid inner wall used for surrounding the knife shaft to limit the knife shaft, a rigid outer wall matched with the mounting hole and an elastic layer for separating the rigid inner wall and the rigid outer wall, the elastic layer comprises an elastic ring used for wrapping the top of the rigid inner wall from the upper side, and vibration generated by the knife shaft and the rigid inner wall can be transmitted into the stirring cup only through the elastic ring, so that the low-noise food processing machine can well play a role in isolating on the path of transmitting the noise into the stirring cup.
Description
Technical Field
The invention relates to the technical field of food processing, in particular to a low-noise food processing machine.
Background
With the improvement of living standard, people begin to make more and more demands on food, pay more attention to the magical and wonderful food hidden in various delicacies, and hope to obtain more nutrition in daily diet to improve the physical state of individuals, so that when the health preserving concept is more and more popular, common families are also equipped with various food processors.
A current common food processing machine, such as a wall breaking machine, mainly comprises a base with a motor arranged therein and a stirring cup arranged above the base, wherein the bottom of the stirring cup is provided with a mounting hole for mounting a shaft sleeve, and a cutter shaft of a crushing cutter penetrates through the shaft sleeve to be in transmission fit with a motor shaft of the motor, in the prior art, the shaft sleeve comprises a rigid inner wall, a rigid outer wall matched with the mounting hole and an elastic layer for spacing the rigid inner wall and the rigid outer wall, in order to solve the problems existing in the prior art, a patent with application number of 201720659891.0 (hereinafter, referred to as application 1) is provided with a limiting mechanism for limiting the circumferential rotation of the elastic layer between the rigid inner wall and the rigid outer wall, so that the circumferential movement of parts (the rigid inner wall, the elastic layer or the rigid outer wall) of the shaft sleeve in the working process is avoided, the noise reduction effect is achieved, in the patent with application number of 201821824498.3 (hereinafter, referred to as application 2), in order to reduce the abrasion of the shaft sleeve, a supporting surface is arranged at the upper end of the rigid inner wall of the shaft sleeve, thereby broken wall machine during operation has reduced the wearing and tearing to the axle sleeve, has promoted the life-span of product.
However, the following problems are present in the prior art, and in each of the applications 1 and 2: smash the sword arbor and directly or indirectly contact with the rigidity inner wall is hard, broken wall machine during operation, the wing of smashing the sword and arbor have certain swing when rotating, and the vibration of arbor causes and produces the vibration between its and the rigidity inner wall, and the vibration of arbor and rigidity inner wall can pass to in the stirring cup, passes to the external world through modes such as rim of a cup for broken wall machine produces great noise, brings the puzzlement for the user.
Disclosure of Invention
The present invention is directed to solving at least one of the above-mentioned problems in the art to a certain extent and to overcoming the shortcomings and drawbacks of the prior art, and to providing a low noise food processor.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a food preparation machine that noise is low, includes motor, stirring cup and install in the crushing sword of stirring cup bottom, crushing sword includes wing and arbor, stirring cup bottom is equipped with the mounting hole of installation axle sleeve, the arbor passes the motor shaft transmission fit of axle sleeve and motor, the axle sleeve is including being used for encircleing the arbor is in order to right the spacing rigid inner wall of arbor, with mounting hole complex rigid outer wall and interval rigid inner wall with the elastic layer of rigid outer wall, the elastic layer is including being used for from the upside parcel the elastic ring at rigid inner wall top.
Preferably, the rigid inner wall comprises an upper positioning ring, and the upper positioning ring is inserted into the elastic ring to limit the cutter shaft.
Preferably, the rigid inner wall comprises an upper positioning ring, and the lower side of the elastic ring is upwards concavely provided with a containing cavity for containing the upper positioning ring.
Preferably, the plane of the upper positioning ring is perpendicular to the axial direction of the cutter shaft.
Preferably, the elastic ring annularly wraps the cutter shaft, and the elastic ring is in clearance or sealing fit with the cutter shaft.
Preferably, the bottom of the stirring cup is provided with a cutter head, the mounting hole is formed in the cutter head, the elastic layer is provided with a sealing rib matched with the cutter head, and the sealing rib is formed by reversely extending the elastic ring.
Preferably, the upper surface of the elastic ring protrudes out of the upper surface of the matched part of the cutter head and the sealing rib.
Preferably, the elastic ring is convexly provided with a supporting piece for supporting the root part of the blade, and the supporting piece is used for limiting the swing amplitude of the crushing knife during rotation.
Preferably, the clearance between the supporting piece and the lower side of the blade root is a, a is less than or equal to 2mm, and the supporting piece and the elastic ring are integrally formed.
Preferably, the elastic layer is a silica gel ring, and the silica gel ring is integrally molded between the rigid inner wall and the rigid outer wall.
The above technical scheme of this application has following beneficial effect:
1. in the application, the shaft sleeve is installed by arranging the installation hole at the bottom of the stirring cup in the prior scheme, so that the cutter shaft is ensured to rotate along the axial direction of the cutter shaft, but because the cutter shaft of the crushing cutter is directly or indirectly in hard contact with the rigid inner wall, when the food processor works, the blades of the crushing cutter and the cutter shaft swing to a certain extent when rotating, the vibration of the cutter shaft causes the vibration between the cutter shaft and the rigid inner wall, the vibration of the cutter shaft and the rigid inner wall can be transmitted into the stirring cup and is transmitted to the outside through the cup mouth and other modes, so that the food processor generates larger noise, in the scheme, the elastic ring used for wrapping the top of the rigid inner wall from the upper side is arranged through the elastic layer, when the food processor works, because the rigid inner wall top is wrapped from the upper side by the elastic ring, the vibration generated by the cutter shaft and the rigid inner wall can be transmitted into the stirring cup through the elastic ring, and the elastic ring adopted in the scheme has an elastic effect, the effect of shaking the absorption can be played, so, when the noise of arbor and rigid inner wall direct impact or indirect collision product was to the transmission of stirring cup, the elastic ring can be fine on the route that above-mentioned noise spreads into the stirring cup isolation effect to can reduce the inside noise of food preparation machine stirring cup, play and shake the effect of making an uproar of falling.
2. In order to further improve the wrapping effect on the top of the rigid inner wall, the rigid inner wall comprises an upper positioning ring, the upper positioning ring is inserted into the elastic ring to limit the cutter shaft, the upper positioning ring is inserted into the elastic ring, the elastic ring realizes the all-around wrapping of the top of the rigid inner wall, namely the all-around wrapping of the upper positioning ring, when the vibration generated between the cutter shaft and the rigid inner wall is transmitted into the stirring cup, all directions of noise transmission are isolated through the all-around wrapping of the upper positioning ring, the noise transmission is better isolated, in addition, the upper positioning ring is inserted into the elastic ring, the structural strength of the elastic ring can be effectively improved, when the food processor works, the cutter shaft vibrates and is in contact with the elastic ring, the upper positioning ring is arranged in the elastic ring, the cutter shaft generates the compression in a small range to the elastic ring, and the elastic ring can ensure that the cutter shaft does not excessively deviate from the axial direction of the cutter shaft on the one hand, on the other hand, the vibration of the cutter shaft can be weakened, and the effect of reducing noise is achieved; in order to further improve the wrapping effect on the top of the rigid inner wall, the scheme can also be that the rigid inner wall comprises an upper positioning ring, the lower side of the elastic ring is upwards and concavely provided with a containing cavity for containing the upper positioning ring, the elastic ring wraps the top of the rigid inner wall from the upper side and the periphery, namely wraps the upper positioning ring from the upper side and the periphery, when the vibration generated between the cutter shaft and the rigid inner wall is transmitted into the stirring cup, the upper side and the periphery of the upper positioning ring are wrapped, so that the upward and the peripheral transmission of the noise are isolated, the transmission of the noise is better isolated, in addition, the structural strength of the elastic ring can be effectively improved by arranging the upper positioning ring in the containing cavity, when the food processing machine works, the cutter shaft vibrates and is contacted with the elastic ring, because the positioning ring is arranged in the containing cavity of the elastic ring, the cutter shaft can generate compression in a small range, and the elastic ring can ensure that the cutter shaft does not excessively deviate from the axial direction of the cutter shaft on the one hand, on the other hand, the vibration of the cutter shaft can be weakened, and the effect of reducing noise is achieved; for better spacing the arbor, go up the axial vertical of holding ring place plane and arbor, during the arbor vibration, because of last holding ring passes through elastic ring and arbor contact, go up the effect that the holding ring can effectively play the support, the vibration range of reduction arbor that can be better, noise reduction from the root cause that the noise produced promotes user experience.
3. In order to better prevent noise generated by vibration of the cutter shaft in the shaft sleeve from being transmitted to the stirring cup, the elastic ring is annularly wrapped on the cutter shaft in the scheme of the application, and the arrangement is such that the noise generated by vibration of the cutter shaft in the shaft sleeve is sealed or gaps of a transmission path are reduced; when elastic ring and arbor clearance fit scheme, reduced the noise that the arbor vibrates the production in the axle sleeve on the one hand and to the gap of stirring cup transmission, also can avoid elastic ring and arbor too much collision to lead to wearing and tearing fast simultaneously, effectively prolong elastic ring's life.
4. In order to strengthen the sealing and noise reduction of the shaft sleeve and the bottom of the stirring cup, the bottom of the stirring cup is provided with a cutter disc, a mounting hole is formed in the cutter disc, and an elastic layer is provided with a sealing rib matched with the cutter disc; furthermore, in order to simplify the manufacturing process of the elastic layer, the sealing rib is formed by reversely extending the elastic ring, the sealing rib and the elastic ring adopt an integrated scheme on the similar vertical height, the strength of the fitting is improved, in addition, the elastic layer comprises the elastic ring and the sealing rib, and the number of small fittings in the shaft sleeve is reduced, so that the problems of high installation difficulty and high cost of the shaft sleeve and the cutter head are avoided; specifically, the upper surface of the elastic ring protrudes out of the upper surface of the matched part of the cutter head and the sealing rib, so that when the food processing machine works, the cutter wing is easy to vibrate due to high-speed rotation, a certain swinging amplitude exists up and down, and the upper surface of the elastic ring protrudes out of the upper surface of the matched part of the cutter head and the sealing rib; on the other hand, the upper surface of the elastic ring protrudes out of the matching position of the cutter head and the sealing rib, so that the cutter head can be prevented from being touched when the cutter wing swings, the cutter wing is prevented from being in hard contact with the cutter head under the condition of high-speed rotation, and noise is reduced.
5. In order to reduce the radiography generated by the rotation of the blade due to the swing, the elastic ring is convexly provided with a supporting piece for supporting the root part of the blade, the supporting piece is used for limiting the swing amplitude when the crushing blade rotates, the supporting piece is arranged on the lower side of the root part of the blade, when the food processing machine works, the blade is easy to vibrate due to high-speed rotation, the upper side and the lower side have certain swing amplitude, the lower side of the root part of the blade firstly touches the supporting piece to generate a pressing force on the supporting piece and also the supporting piece generates an upward driving force on the root part of the blade by arranging the supporting piece on the lower side of the root part of the blade when the blade has certain swing amplitude, so the swing amplitude of the blade can be reduced due to the buffer action of the supporting piece, therefore, the supporting piece arranged on the lower side of the root part of the blade has the functions of vibration absorption, sound absorption and noise insulation, the noise generated by the vibration of the blade can be effectively reduced, in addition, the concentricity of the cutter shaft and the shaft sleeve can be improved by reducing the swing amplitude of the blade, reduce the collision of arbor and axle sleeve, the source that can the noise abatement produce on the one hand, on the other hand, the concentricity of arbor and axle sleeve improves and can effectively improve transmission efficiency, reduces energy loss. Specifically, the gap between the support piece and the lower side of the blade root is a, a is not more than 2mm, the swing amplitude of the blade is small, the noise generated by the swing of the blade is small, and the noise reduction requirement is low, so that the gap is formed between the upper side of the support piece and the lower side of the blade root, the situation that the blade presses the support piece when the swing amplitude is small is avoided, and on the other hand, the pressing force of the blade on the support piece when the swing amplitude is maximum can be reduced by arranging the gap, so that the abrasion of the blade on the support piece is reduced, and the service life of the support piece is prolonged; the supporting piece and the elastic ring are integrally formed, so that the structural strength of the supporting piece is effectively improved, and the supporting piece is prevented from rotating along with the blade.
6. The elastic layer is the silica gel circle, the integrative moulding plastics of silica gel circle is between rigidity inner wall and rigidity outer wall, connect the location through the silica gel circle between rigidity inner wall and rigidity outer wall, can improve rigidity inner wall and rigidity outer wall concentricity between rigidity inner wall and rigidity outer wall through moulding plastics silica gel circle an organic whole, guarantee rigidity inner wall and the concentric setting of rigidity outer wall, concentricity between mounting hole and arbor or bearing can be ensured to rigidity inner wall and the rigidity outer wall of concentric setting, and then ensure coaxial setting between motor output shaft and arbor, effectively reduce the wearing and tearing between arbor and rigidity inner wall or the silica gel circle, on the other hand, through ensuring coaxial setting between motor output shaft and arbor, can effectively improve power transmission efficiency.
Drawings
The invention is described in further detail below with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a food processor according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the stirring cup according to the first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the crushing cutter, the cutter head and the shaft sleeve according to the first embodiment of the invention.
Fig. 4 is a schematic structural diagram of an assembly of the crushing cutter, the cutter head and the shaft sleeve according to the first embodiment of the present invention.
Fig. 5 is a partial enlarged view of a1 indicated in fig. 4.
Fig. 6 is a partial enlarged view of a2 indicated in fig. 5.
Fig. 7 is a schematic structural diagram of the shaft sleeve according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of the assembly of the rigid inner wall, the rigid outer wall and the elastic layer according to the embodiment of the invention.
Fig. 9 is a schematic structural diagram of the shaft sleeve according to the second embodiment of the present invention.
Fig. 10 is a partial enlarged view of a3 indicated in fig. 9.
Fig. 11 is a schematic structural view of the assembly of the crushing cutter, the cutter head and the shaft sleeve according to the second embodiment of the present invention.
Fig. 12 is a partial enlarged view of a4 indicated in fig. 11.
Fig. 13 is another schematic structural diagram of the shaft sleeve according to the third embodiment of the present invention.
Fig. 14 is another schematic structural diagram of the shaft sleeve according to the third embodiment of the present invention.
Fig. 15 is a schematic structural diagram of the shaft sleeve according to the second embodiment of the present invention.
The corresponding reference numbers for the component names in the figures are as follows:
1. a stirring cup; 11. mounting holes; 2. a crushing knife; 21. a blade; 22. a cutter shaft; 3. a shaft sleeve; 31. a rigid inner wall; 311. an upper positioning ring; 312. hanging rubber ribs; 313. hanging a glue hole; 32. a rigid outer wall; 33. an elastic layer; 331. an elastic ring; 3311. an accommodating cavity; 332. sealing the ribs; 333. a support member; 4. a cutter head; 5. a wear layer; 61. oil sealing; 62. an isolation gasket; 63. a ball bearing; 7. a machine base.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples. It is to be understood that the embodiments represent only possible variations, individual components and functions are optional unless explicitly required, and the terms "comprises", "comprising" or any other variation thereof herein are intended to cover a non-exclusive inclusion, such that a process, method or apparatus that comprises a list of elements does not include only those elements but also other elements not explicitly listed, for purposes of making the objects, aspects and advantages of the embodiments of the present invention more apparent, and the embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The first embodiment is as follows:
in an exemplary embodiment of the present invention, as shown in fig. 1 to 8, an embodiment of the present invention provides a food processor with low noise, as shown in fig. 1 and 2, the food processor includes a base 7, a motor (not shown in the drawings), a stirring cup 1 mounted on the base, and a crushing blade 2 mounted at the bottom of the stirring cup 1, the crushing blade 2 includes blades 21 and a cutter shaft 22, the bottom of the stirring cup 1 is provided with a mounting hole 11 for mounting a bushing 3, and the cutter shaft 22 passes through the bushing 3 and is in transmission fit with a motor shaft of the motor.
In order to ensure concentricity of the arbor 22 and the sleeve 22, as shown in fig. 3, the sleeve 3 includes a rigid inner wall 31 for surrounding the arbor 21 to limit the arbor 21, a rigid outer wall 32 fitted to the mounting hole 11, and an elastic layer 33 for spacing the rigid inner wall 31 and the rigid outer wall 32.
In the existing scheme, the bottom of the stirring cup 1 is provided with the mounting hole 11 to mount the shaft sleeve 3, so that the cutter shaft 22 is ensured to rotate along the axial direction of the cutter shaft 22, but because the cutter shaft 22 of the crushing cutter 2 is directly or indirectly in hard contact with the rigid inner wall 31, when the food processor works, the blade 21 and the cutter shaft 22 of the crushing cutter 2 swing to a certain extent when rotating, the vibration of the cutter shaft 22 causes the vibration between the cutter shaft 22 and the rigid inner wall 31, the vibration of the cutter shaft 22 and the rigid inner wall 31 can be transmitted into the stirring cup 1 and transmitted to the outside through paths such as the cup opening of the stirring cup 1, and the food processor generates large noise.
In order to isolate the noise transmission, as shown in fig. 4 and 5, in the present application, the elastic layer 33 is provided with the elastic ring 331 for wrapping the top of the rigid inner wall 31 from the upper side, so as to set up, when the food processor is in operation, because the elastic ring 331 wraps the top of the rigid inner wall 31 from the upper side, the vibration generated by the knife shaft 22 and the rigid inner wall 31 can be transmitted into the stirring cup 1 through the elastic ring 331, the elastic ring 331 adopted in the present application has an elastic effect and can play a role of vibration absorption, therefore, when the noise generated by the knife shaft 22 and the rigid inner wall 31 directly or indirectly colliding with a product is transmitted to the stirring cup 1, the elastic ring 331 can play a good role of isolation on the path of the noise transmitted into the stirring cup 1, thereby reducing the noise inside the stirring cup 1 of the food processor and playing a role of vibration absorption and noise reduction.
The distance that elastic layer 33 wrapped up arbor 22 along arbor 22 axial is b, and the distance that elastic ring 331 wrapped up arbor 22 along arbor 22 axial is b, and 0.2mm is less than or equal to b and is less than or equal to 10mm, through selecting the distance that suitable elastic layer 33 wrapped up in arbor 22 axial, can guarantee the isolation to the noise of arbor 22 and rigid inner wall 31 direct collision or indirect collision product, can also avoid elastic layer 33 along the distance undersize isolation effect of arbor 22 axial parcel is poor, or elastic layer 33 along the distance of arbor 22 axial parcel is too big causes material waste, with high costs.
In order to further improve the parcel effect to the rigidity inner wall 31 top, as shown in fig. 5, rigidity inner wall 31 includes holding ring 311, goes up holding ring 311 and inserts elastic ring 331 is with right arbor 22 is spacing, through inserting holding ring 311 in elastic ring 331, elastic ring 331 realizes upper and lower and all-round parcel all around to rigidity inner wall 31 top, promptly to the all-round parcel of last holding ring 311, so set up, when the vibration that produces between arbor 22 and the rigidity inner wall 31 spreads into agitator cup 1, through the all-round parcel to last holding ring 311, all directions of noise transmission have been isolated, better isolation the transmission of noise.
In addition, the upper positioning ring 311 is inserted into the elastic ring 331, so that the structural strength of the elastic ring 331 can be effectively improved, when the food processor works, the cutter shaft 22 vibrates and contacts with the elastic ring 331, and because the upper positioning ring 311 is arranged in the elastic ring 331, the cutter shaft 22 generates compression in a small range on the elastic ring 331, on one hand, the elastic ring 331 can ensure that the cutter shaft 22 does not deviate from the axial direction of the cutter shaft 22 too much, on the other hand, the vibration of the cutter shaft 22 can be weakened, and the effect of reducing noise is achieved.
Further, for better spacing arbor 22, go up holding ring 311 place plane and arbor 22's axial vertical, during arbor 22 vibrates, because of last holding ring 311 passes through elastic ring 331 and arbor 22 contact, go up holding ring 311 and can effectively play the effect of support, the vibration range of reduction arbor 22 that can be better, noise reduction from the root cause that the noise produced promotes user experience.
In order to better prevent noise generated by vibration of the cutter shaft 22 in the shaft sleeve 3 from being transmitted to the stirring cup 1, the elastic ring 331 is annularly wrapped on the cutter shaft 22 in the scheme, and the noise generated by vibration of the cutter shaft 22 in the shaft sleeve 3 is sealed off or gaps of a transmission path are reduced to the transmission path of the stirring cup 1.
Specifically, the elastic ring 331 is in clearance or sealing fit with the knife shaft 22.
When elastic ring 331 and arbor 22 seal fit, laminating or interference fit promptly, can completely seal the noise that arbor 22 vibrated in axle sleeve 3 and produced to the route of stirring cup 1 transmission, make stirring cup 1 internal noise reduce to minimum, effectively promote user's use impression.
When the elastic ring 331 and the cutter shaft 22 are in clearance fit, the fit clearance is C, C is not less than 0.1mm and not more than 1mm, the elastic ring 331 and the cutter shaft are in clearance fit, and the proper fit clearance is C, so that on one hand, the gap of noise generated by vibration of the cutter shaft 22 in the shaft sleeve 3 to the stirring cup 1 is reduced, meanwhile, too much collision between the elastic ring 331 and the cutter shaft 22 can be avoided, the abrasion is fast, and the service life of the elastic ring 331 is effectively prolonged.
In order to enhance the sealing between the shaft sleeve 3 and the bottom of the stirring cup 1 and reduce noise, the bottom of the stirring cup 1 is provided with a cutter head 4, and a mounting hole 11 is formed in the cutter head 4.
In order to seal the cutter disc 4, as shown in fig. 6, the elastic layer 33 is provided with a sealing rib 332 matched with the cutter disc 4, and by arranging the sealing rib 332, when the shaft sleeve 3 is pressed into the cutter disc 4, the sealing rib 332 can be matched with an opening of the cutter disc 4, namely, the sealing rib 332 is matched with the cutter disc 4 at the mounting hole 11, so that the effect of sealing the opening of the cutter disc 4 can be achieved, and a waterproof sealing effect is achieved.
In addition, the opening of the cutter head 4 is matched with the sealing rib 332, so that the hard material is contacted with the flexible material, and the sealing rib 332 also plays a role in damping and absorbing vibration of the shaft sleeve 3.
Furthermore, in order to simplify the manufacturing process of the elastic layer 33, the sealing rib 332 is formed by reversely extending the elastic ring 331, the sealing rib 332 and the elastic ring 331 adopt an integrated scheme at a close vertical height, so that the strength of the fitting is improved, in addition, the elastic layer 33 comprises the elastic ring 331 and the sealing rib 332, so that too many small fittings are arranged in the shaft sleeve 3, and the problems of high installation difficulty and high cost of the shaft sleeve 3 and the cutter head 4 are avoided.
Specifically, the upper surface of the elastic ring 331 protrudes out of the upper surface of the matching part of the cutter head 4 and the sealing rib 332, so that when the food processor works, the cutter wing 21 is easy to vibrate due to high-speed rotation, and a certain swing amplitude exists up and down; on the other hand, the upper surface of the elastic ring 331 protrudes from the matching position of the cutter disc 4 and the sealing rib 332, so that the cutter disc 4 can be prevented from being touched when the blades 21 swing, the blades 21 are prevented from being in hard contact with the cutter disc 4 under the condition of high-speed rotation, and the noise is reduced.
Preferably, the height of the upper surface of the elastic ring protruding out of the matching part of the cutter head and the sealing rib is d2, and d2 is more than or equal to 0.5mm and less than or equal to 5 mm.
The elastic layer 33 is a silica gel ring, the silica gel ring is integrally injected between the rigid inner wall 31 and the rigid outer wall 32, the rigid inner wall 31 and the rigid outer wall 32 are connected and positioned through the silica gel ring, the concentricity of the rigid inner wall 31 and the rigid outer wall 32 can be improved by integrally injecting the silica gel ring between the rigid inner wall 31 and the rigid outer wall 32, the rigid inner wall 31 and the rigid outer wall 32 which are concentrically arranged can ensure the concentricity between the mounting hole 11 and the cutter shaft 22 or the bearing, further the coaxial arrangement between the motor output shaft and the cutter shaft 22 is ensured, the abrasion between the cutter shaft 22 and the rigid inner wall 31 or the silica gel ring is effectively reduced, on the other hand, the power transmission efficiency can be effectively improved by ensuring the coaxial arrangement between the motor output shaft and the cutter shaft 22.
In order to ensure the noise reduction and concentric correction effects of the elastic layer 33, the thickness of the elastic layer 33 is d1, d1 is more than or equal to 0.8mm and less than or equal to 5mm, the elastic layer 33 has the vibration reducing effect on a food processor, and the self-correction of the non-concentricity effect when the shaft of the crushing cutter 2 is not concentric with the motor shaft is realized, the noise insulation and noise absorption effects of the elastic layer 33 are related to the d1 value of the thickness of the elastic layer 33, the thicker the elastic layer is theoretically, the better the food processor is in consideration of space limitation, and in the application, the d1 is more than or equal to 0.8mm and less than or equal to 5 mm.
It can be understood that, in order to ensure the fixation of the rigid inner wall 31, the rigid outer wall 32 and the elastic layer 33, a fixing structure may be provided on the rigid inner wall and the rigid outer wall, as shown in fig. 8, and the rigid inner wall is provided with a glue hanging rib 312 and a glue hanging hole 313.
It can be understood that, the rigid inner wall 31 may be provided with components for cooperating with the rigid inner wall 31 and the cutter shaft, as shown in fig. 7, an oil seal 61, an isolation gasket 62 and a ball bearing 63 are provided in the rigid inner wall 31, and before the ball bearing 63 is pressed into the shaft sleeve 3, a layer of adhesive is also coated on an outer ring of the ball bearing 63, and the adhesive is coated to prevent the fixing from loosening due to the reasons of machining error, high temperature deformation, cold and hot shrinkage, etc. of the parts.
Example two:
the main difference between this embodiment and the first embodiment is that the food processor of this embodiment is provided with a support 333 for supporting the root of the blade 21.
Specifically, as shown in fig. 9 to 14, in order to reduce the contrast caused by the swing of the blade 21, as shown in fig. 9 and 10, a support 333 for supporting the root of the blade 21 is provided in an upwardly protruding manner on the elastic ring 331, the support 333 is provided for limiting the swing range of the crushing blade 2 when it rotates, and by providing the support 333 under the root of the blade 21, the blade 21 is likely to vibrate due to high-speed rotation and has a certain swing range in the vertical direction when the food processor operates, and by providing the support 333 under the root of the blade 21 and having a certain swing range in the vertical direction of the blade 21, the lower side of the root of the blade 21 first comes into contact with the support 333 to generate a pressing force on the support 333, and similarly, the support 333 generates an upward urging force on the root of the blade 21 to reduce the swing range of the blade 21 due to the cushioning effect of the support 333, so that the support 333 provided under the root of the blade 21 has a shock absorbing function, The noise generated by the vibration of the blade 21 can be effectively reduced due to the sound absorption and noise insulation effects.
In addition, the concentricity of the cutter shaft 22 and the shaft sleeve 3 can be improved by reducing the swing amplitude of the blade 21, the collision between the cutter shaft 22 and the shaft sleeve 3 is reduced, on one hand, the source of noise can be reduced, on the other hand, the concentricity of the cutter shaft 22 and the shaft sleeve 3 is improved, the transmission efficiency can be effectively improved, and the energy loss is reduced.
Specifically, as shown in fig. 11 and 12, a is a, a is not more than 2mm, the swing amplitude of the blade 21 is small, noise generated by swing of the blade 21 is small, and noise reduction requirements are low, so that a gap is provided between the upper side of the support 333 and the lower side of the root of the blade 21, so that the support 333 is prevented from being pressed by the blade 21 when the swing amplitude is small, and on the other hand, the pressing force of the blade 21 on the support 333 when the swing amplitude is maximum can be reduced by providing the gap, so that abrasion of the blade 21 on the support 333 is reduced, and the service life of the support 333 is prolonged; the support member 333 and the elastic ring 331 are integrally formed, so that the structural strength of the support member 333 is effectively improved, and the support member 333 is prevented from rotating along with the blade 21.
In order to better ensure the supporting effect of the support member 333 on the blade 21, both the structural strength of the support member 333 and the vibration damping effect of the support member 333 are considered, so in order to ensure the structural strength supported by the support member 333, the cross section of the support member 333 is set to be a structure with a small top and a large bottom in the present application, the supporting area of the bottom of the support member 333 is large, and the structural strength is high.
Similarly, the structure that the cross section of the support part 333 is small at the top and large at the bottom is also beneficial to improving the vibration reduction effect, that is, the larger the swing amplitude of the blade 21 is, the larger the compression amount of the support part 333 is, so that the support part can provide larger support force for the blade 21 when the swing amplitude of the blade 21 is larger, and the support effect of the support part 333 on the blade 21 can be ensured.
Specifically, as shown in fig. 9, the cross section of the support 333 is in a horn shape with an upward opening, the support 333 includes an annular side wall concentric with the cutter shaft 22, and the annular side wall is disposed away from the cutter shaft 22 in the direction of the root of the blade 21 along the cutter shaft 22, that is, the opening of the annular side wall is in a shape of a large top and a small bottom.
As shown in fig. 9 and 10, the wear-resistant layer 5 is provided on the support 333 and the lower side wall of the root portion of the blade 21, and the wear-resistant layer 5 is provided on the support 333 to enhance the wear resistance of the surface of the support 333 and prolong the friction life of the support 333, it can be understood that the wear-resistant layer 5 may be provided in various ways, a layer of wear-resistant paint may be sprayed on the surface of the support 333, or a layer of wear-resistant material may be attached to the surface of the support 333.
It can be understood that, as shown in fig. 13, the cross section of the support 333 may be in a "eight" shape, and the support 333 includes an annular sidewall concentric with the knife shaft 22, and the annular sidewall is disposed near the knife shaft 22 along the knife shaft 22 in the direction of the root of the blade 21, that is, the opening of the annular sidewall is in a shape of a small top and a large bottom.
It will be appreciated that the support 333 includes a circular side wall concentric with the arbor 22, as shown in fig. 14, the circular side wall being isosceles triangular in cross-section, i.e. the bottom center and the top center of the circular side wall are on the same vertical line.
The remaining aspects and effects of the food processor described in this embodiment are consistent with those of the embodiment, and will not be described herein again.
Example three:
the main difference between this embodiment and the first and second embodiments is that the lower side of the elastic ring 331 of the food processor of this embodiment is recessed upward to form a receiving cavity 3311 for receiving the upper positioning ring 311.
Specifically, as shown in fig. 15, in order to further improve the wrapping effect on the top of the rigid inner wall 31, the rigid inner wall 31 of the present solution includes an upper positioning ring 311, a containing cavity 3311 for containing the upper positioning ring 311 is formed in the lower side of the elastic ring 331 in an upward concave manner, the elastic ring 331 wraps the top of the rigid inner wall 31 from the upper side and around, i.e., the upper positioning ring 311 wraps from the upper side and around, when vibration generated between the cutter shaft 22 and the rigid inner wall 31 is transmitted into the stirring cup 1, the noise is isolated upward and transmitted around by wrapping the upper positioning ring 311 from the upper side and around, and the noise is better isolated.
In addition, the upper positioning ring 311 is arranged in the accommodating cavity 3311, so that the structural strength of the elastic ring 331 can be effectively improved, when the food processor works, the cutter shaft 22 vibrates and is in contact with the elastic ring 331, and because the positioning ring is arranged in the accommodating cavity 3311 of the elastic ring 331, the cutter shaft 22 can compress the elastic ring 331 within a small range, on one hand, the elastic ring 331 can ensure that the cutter shaft 22 does not deviate from the axial direction of the cutter shaft 22 too much, on the other hand, the vibration of the cutter shaft 22 can be weakened, and the effect of reducing noise is achieved.
The remaining aspects and effects of the food processor described in this embodiment are the same as those of the first and second embodiments, and are not described herein again.
It should be understood by those skilled in the art that the embodiments of the present invention are described above, but the present invention is not limited to the embodiments described above. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the embodiments of the invention as disclosed, and the scope of the embodiments of the invention as defined by the appended claims and their equivalents is deemed to be within the scope of the invention.
Claims (9)
1. The utility model provides a food preparation machine that noise is low, includes motor, stirring cup and install in the crushing sword of stirring cup bottom, it includes wing of a knife and arbor to smash the sword, stirring cup bottom is equipped with the mounting hole of installation axle sleeve, the arbor passes the motor shaft drive fit of axle sleeve and motor, the axle sleeve is including being used for encircleing the arbor is in order to right the spacing rigid inner wall of arbor, with mounting hole complex rigid outer wall and interval the rigid inner wall with the elastic layer of rigid outer wall, its characterized in that, the elastic layer is including being used for from the upside parcel the elastic ring at rigid inner wall top, the rigid inner wall includes the holding ring, it inserts to go up the holding ring the elastic ring is with right the arbor is spacing.
2. A low noise food processor as defined in claim 1, wherein said rigid inner wall includes an upper positioning ring, said resilient ring having a cavity recessed upwardly from an underside thereof for receiving said upper positioning ring.
3. A low noise food processor as defined in claim 1 or 2, wherein the upper positioning ring is located in a plane perpendicular to the axial direction of the arbor.
4. A low noise food processor as defined in claim 1, wherein said elastomeric ring annularly surrounds said arbor, said elastomeric ring being in clearance or sealing engagement with said arbor.
5. The low noise food processor of claim 1, wherein the blending cup includes a cutter head at a bottom thereof, the mounting hole is formed in the cutter head, the elastic layer includes a sealing rib engaged with the cutter head, and the sealing rib is formed by extending the elastic ring in a direction opposite to the direction of the elastic ring.
6. The low noise food processor of claim 5, wherein the elastomeric ring has an upper surface that projects above an upper surface of the impeller where the sealing rib engages the impeller.
7. A low noise food processor as defined in claim 1, wherein said resilient ring is provided with a support member protruding upwardly therefrom for supporting the root of said blade, said support member being adapted to limit the extent of oscillation of said crushing blade when rotated.
8. A low noise food processor as defined in claim 7, wherein the clearance between said support member and the underside of the root portion of said blade is a, a ≦ 2mm, said support member being integrally formed with said elastic ring.
9. A low noise food processor as defined in any of claims 1-2 and 4-8, wherein said elastic layer is a silicone ring integrally molded between said rigid inner wall and said rigid outer wall.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911065015.5A CN111588283B (en) | 2019-11-04 | 2019-11-04 | Low-noise food processing machine |
| PCT/CN2020/124648 WO2021088708A1 (en) | 2019-11-04 | 2020-10-29 | Food processor and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911065015.5A CN111588283B (en) | 2019-11-04 | 2019-11-04 | Low-noise food processing machine |
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| CN111588283B true CN111588283B (en) | 2021-12-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021088708A1 (en) * | 2019-11-04 | 2021-05-14 | 九阳股份有限公司 | Food processor and processing method thereof |
| CN216724290U (en) * | 2022-02-18 | 2022-06-14 | 九阳股份有限公司 | Mute food processing machine |
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