CN216020644U - Food processor capable of reducing resonance noise - Google Patents

Abstract

The utility model discloses a food processing machine capable of reducing resonance noise, which comprises a machine body, a crushing cup, a crushing cutter and a crushing motor, wherein the crushing cup, the crushing cutter and the crushing motor are arranged on the machine body, the crushing motor is provided with an output shaft, the bottom of the crushing cup is provided with a shaft hole, the output shaft extends into the crushing cup through the shaft hole and is in transmission connection with the crushing cutter, the bottom of the crushing cup is provided with a crushing cup seat, the outer part of the output shaft is provided with a bearing, and a vibration damping structure is arranged between the bearing and the crushing cup seat. Because the output shaft and the crushing motor or the crushing cutter are in hard connection, the vibration amplitude can be transmitted in the rotating process, and the vibration reduction structure can reduce the swinging amplitude of the output shaft of the motor, thereby further reducing the noise generated by resonance.

Description

Food processor capable of reducing resonance noise

Technical Field

The utility model relates to the technical field of food processing, in particular to a food processing machine capable of reducing resonance noise.

Background

At present, the self-cleaning food preparation machine who appears in the market has solved the washing problem of user after the use, and this kind of model structure electrical apparatus itself is more complicated, so mostly all set up to frame structure, and the cup is smashed to the drink generally can't be dismantled, stretches into through the motor shaft and smashes in the cup, directly drives crushing blade and processes at the axle head, and it is rotatory to adopt the indirect blade that drives of shaft coupling to be different from traditional model.

However, the structure of this kind of mode is relatively longer because of the motor shaft stretches into, when the blade is high-speed rotatory, can arouse to rotate unstably by the material impact, because the motor shaft is connected with crushing sword and motor and be the stereoplasm, consequently can produce the resonance of certain range with the motor shaft, influences the steady of complete machine, and the local noise that produces between cup and motor also can be relatively great for user control operation's time experiences relatively poorly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a food processor capable of reducing resonance noise. The food processor can buffer and weaken the radial vibration of the motor shaft through the vibration reduction structure, thereby ensuring the stability of the whole machine and reducing the local noise between the cup body and the motor.

The technical problem of the utility model is mainly solved by the following technical scheme:

a food processor for reducing resonance noise, comprising: the crushing motor is provided with an output shaft, the bottom of the crushing cup is provided with a shaft hole, the output shaft extends into the crushing cup through the shaft hole and is in transmission connection with the crushing knife, the bottom of the crushing cup is provided with a crushing cup base, a bearing is arranged outside the output shaft, and a damping structure is arranged between the bearing and the crushing cup base.

Preferably, the vibration reduction structure comprises a bearing sleeve, and the bearing sleeve is fixedly connected with the outer wall of the bearing through an insert.

Preferably, the bearing sleeve is made of soft rubber, and the outer wall of the bearing sleeve is in clearance fit with the inner wall of the grinding cup seat.

Preferably, the gap value between the bearing sleeve and the grinding cup seat is a, and a is more than or equal to 0.3mm and less than or equal to 1 mm.

Preferably, the outer surface of the bearing sleeve is also provided with a convex rib.

Preferably, the convex ribs are coaxially arranged with the bearing sleeve and are continuously or alternately distributed on the outer circular surface of the bearing sleeve.

Preferably, the cross section of the convex rib is semicircular, trapezoidal, triangular or special-shaped, and at least two layers of the convex rib are arranged on the outer wall of the bearing sleeve.

Preferably, the highest point of the convex rib is in transition fit with the crushing cup base, and the gap value is b, which is more than or equal to-0.2 mm and less than or equal to b and more than or equal to +0.3 mm.

Preferably, a crushing support is further arranged between the crushing cup and the crushing motor, and a shock pad is arranged at the fixed connection position of the crushing support and the crushing motor.

Preferably, the shock pad can be made of butyl rubber.

Compared with the prior art, the beneficial effect of this application is:

1. the application provides a food preparation machine of reducible resonance noise, include the organism and set up in the crushing cup of organism, smash sword and crushing motor, the bottom of smashing the cup is provided with the shaft hole, and the lower extreme is equipped with downwardly extending's crushing cup stand, smashes the sword setting in smashing the cup, and the output shaft of crushing motor stretches into through the shaft hole and smashes the cup in, is connected with the transmission of smashing the sword, drives and smashes sword high-speed rotation. Output shaft and crushing sword and bearing are the stereoplasm and are connected, so smash the sword and strike with the material and make the output shaft produce radial vibration, and the outside cover of bearing is equipped with the damping structure, and the damping structure can carry out certain buffering protection to the output shaft including the bearing housing that adopts the flexible glue material, reduces the amplitude of oscillation of output shaft to further reduction is because the produced local noise of output shaft vibration.

2. In the food preparation machine that can reduce resonance noise that this application provided, bearing housing inside passes through inserts fixed connection with the bearing, and the outside and the crushing cup inner wall clearance fit of bearing housing, on the one hand, can cushion the vibration on the output shaft, increase the buffering adjustment space, on the other hand can ensure the sealed fit relation of bearing seal upper surface and crushing cup bottom, if bearing housing lateral wall and crushing cup cooperation interference, can lead to the bearing housing lateral wall to play certain supporting role to crushing cup, disperse the packing force of bearing seal and crushing cup bottom terminal surface, so just can arouse the sealed inefficacy of bearing seal upper surface and crushing cup, lead to the excessive output shaft position of thick liquid.

3. In the food preparation machine that can reduce resonance noise that this application provided, the clearance value of bearing housing and crushing bowl is a, and 0.3mm is less than or equal to a and is less than or equal to 1mm, and when an was less than 0.3mm, the bearing housing outer wall was too little with the inner wall clearance of crushing bowl, and when the output shaft began to vibrate, the bearing housing buffering was not enough, can lead to with crushing bowl inner wall produced great extrusion force, further influenced the bearing seal effectively sealed, and when a was greater than 1mm, the bearing housing outer wall was too big with the clearance of crushing bowl inner wall, can not effectively slow down the output shaft, and the amplitude of output shaft is great, still can produce stronger noise.

4. In the food preparation machine that can reduce resonance noise that this application provided, the surface of bearing housing still is equipped with a plurality of protruding muscle, supports through protruding muscle structure, ensures the clearance fit relation of bearing housing and crushing cup on the one hand, can not influence the assembly leakproofness problem of bearing seal, and on the other hand can also effectively cushion crushing sword and drive the radial wobbling range of output shaft, increase buffer space. The convex ribs are distributed continuously or at intervals to form a rib ring coaxial with the bearing sleeve, and the bearing sleeve is supported at multiple ends by arranging at least two layers of convex ribs, so that the circumferential stability of the bearing sleeve is ensured.

5. In the food processing machine capable of reducing the resonance noise, the highest point of the rib position of the convex rib on the bearing sleeve is generally in transition fit with the side wall of the grinding cup seat, or the fit clearance value is set to be b, the specific range is-0.2 mm and is not more than b and not more than +0.3mm, when b is less than-0.2 mm, the convex rib and the side wall of the grinding cup seat are excessively matched, the buffering effect is small, the assembly is easily influenced, when b is more than 0.3mm, the distance between the convex rib and the side wall of the grinding cup seat is far, and the amplitude of an output shaft is difficult to control.

6. In the food preparation machine that can reduce resonance noise that this application provided, still be provided with crushing support between crushing cup and the crushing motor, be used for supporting and fixed crushing cup through crushing support, nevertheless can conduct the vibration of crushing motor simultaneously, consequently can set up the shock pad usually in the junction, the shock pad of this application is different from the flexible glue, adopt the butyl rubber material, can reduce the vibration range of motor, can also absorb little amplitude, change vibration frequency, thereby the noise reduction.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic diagram of a food processor with reduced resonance noise according to an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of an output shaft of a food processor according to one embodiment of the present application;

fig. 3 is a partial cross-sectional view of a vibration reduction structure of a food processor according to an embodiment of the present application.

Icon: view A, output shaft partial view, view B and shock absorption structure partial view;

1-machine body, 2-grinding cup, 3-grinding knife, 4-grinding motor and 5-motor support;

21-shaft hole, 22-grinding cup seat;

41-output shaft, 42-bearing, 43-bearing sleeve, 44-shaft seal and 431-convex rib;

51-shock pad.

Detailed Description

The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.

In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "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 technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.

Please refer to fig. 1, which is a schematic diagram of a whole structure of a food processor capable of reducing resonance noise according to an embodiment of the present application. The utility model provides a food preparation machine of reducible resonance noise, includes organism 1 and the crushing cup 2 of setting on organism 1, smashes sword 3 and crushing motor 4, wherein, inside organism 1, the output of crushing motor 4 is provided with output shaft 41, smashes sword 3 and sets up in the cup bottom of smashing cup 2, smashes the bottom of cup axle center position of cup 2 and is equipped with shaft hole 21, and output shaft 41 passes through shaft hole 21 and smashes sword 3 drive connection.

The bottom of smashing cup 2 still is provided with the crushing cup 22 of downwardly extending, and is fixed with the output shaft 41 cooperation of smashing motor 4 through smashing cup 22, and the outside of output shaft 41 is provided with bearing 42, through damping structural connection between bearing 42's the outside and the crushing cup 22, and the damping subassembly includes bearing housing 43, and bearing 42's top still is provided with bearing seal 44, and it is sealed with smashing cup 22 butt through bearing seal 44.

In an operation process, the user drives through control crushing motor 4, drive crushing sword 3 through output shaft 41, crushing sword 3 is at the inside high-speed rotation of crushing cup, it is smashed to drive the interior material of cup and whip, it is rotatory to drive rivers simultaneously, under the impact of material, crushing sword 3 can take place the reaction force of certain degree, drive output shaft 41 radial oscillation, cushion through bearing housing 43, slow down output shaft 41's amplitude, reduce because of the produced noise of output shaft vibration, improve user's use and experience.

Referring to fig. 2, which is a partial cross-sectional view of an output shaft of a food processor according to an embodiment of the present application, referring to a view a, a bearing 42 is coaxially engaged with an output shaft 41, a bearing housing 43 is disposed on a side wall of the bearing 42, a shaft seal 44 is disposed above the bearing housing 43, the entire output shaft assembly is disposed inside a grinding cup 22, an outer wall of the bearing housing 43 abuts against an inner wall of the grinding cup, and the shaft seal 44 is pressed against a lower end surface of the grinding cup 22, so that a sealing is ensured between the shaft hole 21 and the lower side.

In an embodiment, the bearing sleeve 43 is made of soft rubber, when the output shaft 41 vibrates in the radial direction, the acting force acts on the bearing sleeve 43, and the bearing sleeve 43 has a good elastic buffering effect, so that the amplitude of the output shaft 41 can be reduced, and the local noise generated at the position of the output shaft 41 can be reduced.

Referring to fig. 3, which is a partial sectional view of the vibration damping structure of the food processor according to an embodiment of the present application, referring to the view B, the outer wall of the bearing sleeve 43 is further provided with a plurality of layers of ribs 431, the outer wall of the bearing sleeve 43 is in clearance fit with the inner wall of the grinding cup holder 22, and the ribs 431 are in transition fit with the inner wall of the grinding cup holder 22.

In an operation process, after the bearing sleeve 43 receives the acting force of the output shaft 41, when the acting force is too large, the acting force is transmitted to the inner wall of the crushing cup holder 22 after elastic deformation occurs, a certain friction force is correspondingly generated on the inner wall of the crushing cup holder 22, the pressing force of the shaft seal 44 above the bearing sleeve 43 and the end surface of the crushing cup holder 22 is further dispersed, and therefore the sealing performance of the shaft hole 21 of the crushing cup is affected, therefore, the bearing sleeve 43 is arranged to be in clearance fit with the inner wall of the crushing cup holder 22, the output shaft 41 has a larger swing space, the stress range is further enlarged, and the influence on the shaft seal 44 is avoided.

In one embodiment, the clearance between the bearing sleeve 43 and the grinding cup holder 22 is a, and a is greater than or equal to 0.3mm and less than or equal to 1mm, when the clearance a between the bearing sleeve 43 and the grinding cup holder 22 is less than 0.3mm, the distance between the bearing sleeve 43 and the grinding cup holder 22 is too close, and a relatively large acting force is easily generated on the side wall of the cup holder in the process of buffering the vibration of the output shaft 41, so that the shaft seal 44 is loosened; when the clearance value a between the bearing sleeve 43 and the grinding cup holder 22 is larger than 1mm, the distance between the bearing sleeve 43 and the grinding cup holder 22 is too far, the bearing sleeve 43 is easy to loosen, the swing amplitude of the output shaft 41 is too large, the output shaft cannot be effectively slowed down, and noise cannot be reduced.

The ribs 431 are coaxially arranged with the bearing sleeve 43 and can be continuously or alternately distributed on the outer circular surface of the bearing sleeve 43 in a surrounding way, the cross section of each rib 431 can be in a circular arc shape or a trapezoid shape or a triangle shape or a special shape, and at least two circles are arranged on the outer wall of the bearing sleeve 43.

In an embodiment, the rib 431 is set to two rings, the two ends of the bearing sleeve 43 are supported by the rib 431, the circumferential stability of the bearing sleeve 43 is ensured, the buffer space between the bearing sleeve 43 and the crushing cup holder 22 can be increased by setting the rib 431, the amplitude of the radial swing of the output shaft 41 driven by the crushing cutter 3 is effectively weakened, and the problem of the sealing assembly of the shaft seal 44 is not influenced.

In another embodiment, the highest point of the rib 431 is in transition fit with the grinding cup holder 22, the gap value is b, which is-0.2 mm or more and b is less than or equal to +0.3mm, when b is less than-0.2 mm, the interference fit between the rib 431 and the inner wall of the grinding cup holder 22 is excessive, which will affect the sealing of the upper shaft seal 44 under the vibration action of the output shaft 41, when b is greater than +0.3mm, the gap fit between the rib 431 and the inner wall of the grinding cup holder 22 is excessive, which results in the overlarge vibration amplitude of the output shaft 41 and weaker noise reduction effect.

Referring to fig. 1 again, the food processor shown in the present application is further provided with a grinding support 5 between the grinding cup 2 and the grinding motor 4, one end of the grinding support 5 fixes the grinding cup 2, and the other end is connected with the grinding motor 4, since the three are all hard connections, vibration can be transmitted through the connection, and by arranging the shock pad 51 at the bottom of the grinding support 5, the relative position relationship between the grinding cup 2 and the grinding motor 4 can be stable, and the vibration amplitude of the grinding motor 4 can be reduced.

In an embodiment, the material of shock pad 51 can adopt butyl rubber, and the butyl rubber material is better than the effect of shaking the vibrations in soft rubber material, sets up shock pad 51 in the position that crushing motor 4 can the direct contact, and further with the swing of the rotatory production of high speed of crushing sword 3 or the swing direct absorption that crushing motor 4 rotated and brought, change vibration frequency, further reduce the noise problem of complete machine, improve user's use experience.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a food preparation machine of reducible resonance noise, includes the organism and locates the crushing cup of organism, smashes sword and crushing motor, it is provided with the output shaft to smash the motor, it is provided with the shaft hole to smash the bottom of the cup, the output shaft stretches into in the crushing cup through the shaft hole, and with smash the sword transmission and be connected, its characterized in that, it is provided with and smashes the cup base to smash the bottom of the cup, the output shaft outside is provided with the bearing, be provided with the damping structure between bearing and the crushing cup base.

2. The food processor of claim 1, wherein the vibration reduction structure comprises a bearing sleeve, and the bearing sleeve is fixedly connected with the outer wall of the bearing through an insert.

3. The food processor as claimed in claim 2, wherein the bearing housing is made of soft rubber, and the outer wall of the bearing housing is in clearance fit with the inner wall of the grinding cup holder.

4. The food processor as claimed in claim 3, wherein the clearance between the bearing sleeve and the grinding cup seat is a, and a is 0.3 mm-1 mm.

5. The food processor as claimed in claim 2, wherein the outer surface of the bearing housing is further provided with ribs.

6. The food processor as claimed in claim 5, wherein the rib is disposed coaxially with the bearing housing and surrounds the outer circumferential surface of the bearing housing continuously or intermittently.

7. The food processor as claimed in claim 6, wherein the raised cross-section of the rib is semi-circular, trapezoidal, triangular or irregular, and the rib has at least two rings on the outer wall of the bearing housing.

8. A food processor as claimed in claim 5, wherein the ribs have a peak point in transition fit with the comminution cup and a clearance value of b-0.2 mm and b-0.3 mm.

9. The food processor as claimed in claim 1, wherein a motor bracket is further disposed between the grinding cup and the grinding motor, and a damping pad is disposed at a fixed connection between the motor bracket and the grinding motor.

10. The food processor as claimed in claim 9, wherein the cushion is made of butyl rubber.

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