CN216628289U

CN216628289U - Food preparation machine with small vibration

Info

Publication number: CN216628289U
Application number: CN202122720156.5U
Authority: CN
Inventors: 朱泽春; 孙臣见; 苏荣清
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-05-31
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses a food processing machine with small vibration, which belongs to the technical field of food processing machines and comprises a main machine and a crushing cup, wherein a driving assembly is arranged in the main machine, the driving assembly comprises a motor with a rotating shaft, the cup bottom of the crushing cup is arranged in the main machine and is provided with a shaft hole, a crushing knife connected to the top end of the rotating shaft is arranged in the crushing cup, a bearing is sleeved on the upper part of the rotating shaft, the driving assembly also comprises a support arranged at the top of the motor, the support is provided with an installation cavity for installing the bearing, and the bearing is arranged in the installation cavity. Because the bearing is arranged in the mounting cavity on the support, a spring which is used for axially positioning the bearing and is adopted in the structure of the existing food processor can be cancelled, the mounting height of the bearing relative to the motor is effectively reduced, the length of the upper part of the rotating shaft can be reasonably reduced, the radial runout of the upper part of the rotating shaft when the motor works is favorably reduced, the vibration intensity of the motor is favorably reduced, the working noise of the crushing cutter is favorably reduced, and the working noise of the whole machine is favorably reduced.

Description

Food preparation machine with small vibration

Technical Field

The utility model relates to the technical field of food processing machines, in particular to a food processing machine with small vibration.

Background

The existing food processor generally comprises a main machine and a crushing assembly, wherein the crushing assembly comprises a crushing cup, a crushing cutter and a motor, and when the machine body works, the motor drives the crushing cutter to rotate at a high speed to cut and crush materials in the crushing cup, so that the purpose of processing food is achieved. For a washing-free food processor, a cup body of a grinding cup is fixed in a host, a rotating shaft of a motor extends into the cup body, a grinding knife is fixed at the top end of the rotating shaft, the rotating shaft is in rotatable fit with the cup body through a bearing, a sealing ring is sleeved on the rotating shaft, the rotating shaft is in sealed fit with the cup body through the sealing ring, and liquid in the grinding cup is prevented from flowing into the host downwards through a gap between the rotating shaft and the cup body. In order to keep the axial positioning of the sealing ring and the bearing, a spring is arranged between the motor and the cup body, the top end of the spring is abutted against the bearing, the bottom end of the spring is abutted against the motor, and the bearing and the sealing ring are kept axially stable through the elastic force of the spring. However, when the structure is adopted, the length of the upper part of the rotating shaft is longer, the radial runout of the upper end of the rotating shaft is larger when the machine body works, the working noise of the crushing cutter is larger easily, the vibration of the whole machine is stronger, and the use experience of a user is not improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides the food processor with small vibration, which reasonably shortens the length of a rotating shaft and lightens the vibration intensity and the working noise of a machine body.

In order to achieve the technical purpose, the food processing machine with small vibration provided by the utility model is characterized in that a driving assembly is arranged in a main machine, the driving assembly comprises a motor with a rotating shaft, the bottom of a crushing cup is arranged in the main machine and is provided with a shaft hole for the rotating shaft to extend into the crushing cup, a crushing cutter connected to the top end of the rotating shaft is arranged in the crushing cup, a bearing is sleeved on the upper part of the rotating shaft, the driving assembly further comprises a support arranged at the top of the motor, the support is provided with an installation cavity for installing the bearing, and the bearing is arranged in the installation cavity.

Preferably, the distance between the top end of the rotating shaft and the center of the motor is H, the total length of the rotating shaft is L, and H/L is more than or equal to 0.38 and less than or equal to 0.52.

Preferably, the distance between the top end of the rotating shaft and the center of the motor is 55 mm-85 mm.

Preferably, the rotating shaft is sleeved with a sealing ring above the bearing and a positioning seat between the sealing ring and the bearing, the rotating shaft and the cup bottom are in sealing fit through the sealing ring, and the positioning seat is positioned and the top of the positioning seat is abutted against the sealing ring.

Preferably, the support is provided with a convex ring surrounding the installation cavity, the top end of the convex ring is provided with a convex edge protruding towards the center of the installation cavity, the positioning part is abutted against the convex ring to realize positioning setting, and part of the positioning part is positioned on the inner periphery of the convex edge.

Preferably, the cup bottom is provided with a boss protruding downwards around the shaft hole, and the positioning seat and the sealing ring are located in the boss.

Preferably, the outer sleeve of the sealing ring is provided with a damping sleeve, and the damping sleeve is positioned in the boss.

Preferably, be equipped with location structure between positioning seat and the sealing washer, location structure includes location muscle and the constant head tank of mutually supporting, and the location muscle inlays in the constant head tank.

Preferably, the inner diameter of the shaft hole is larger than the outer diameter of the rotating shaft, and the top side of the sealing ring is provided with a lip edge extending into the shaft hole and tightly attached to the rotating shaft; and/or a plurality of sealing ribs which are distributed up and down are arranged on the inner peripheral wall of the sealing ring, and the sealing ribs are tightly attached to the rotating shaft.

Preferably, the driving assembly further comprises an air guide cover arranged outside the motor, the host is provided with a heat dissipation channel located at the bottom of the driving assembly, and the lower portion of the rotating shaft extends into the heat dissipation channel and is sleeved with a fan.

After the technical scheme is adopted, the utility model has the following advantages:

1. the food processor provided by the utility model has the advantages that the bearing sleeved on the upper part of the rotating shaft is arranged in the mounting cavity on the bracket, a spring used for axially positioning the bearing in the structure of the existing food processor can be omitted, the mounting height of the bearing relative to the motor is effectively reduced, the length of the upper part of the rotating shaft can be reasonably reduced, the radial runout of the upper part of the rotating shaft during the working of the motor is favorably reduced, the vibration strength of the motor is favorably reduced, the working noise of a crushing cutter is favorably reduced, and the working noise of the whole machine is favorably reduced.

2. The proportion of the upper part of the rotating shaft to the whole rotating shaft is reasonably set, so that the whole rotating shaft can better meet the damping requirement. If H/L is less than 0.38, the lower part of the rotating shaft is longer, and the radial runout amplitude of the lower part of the rotating shaft is larger when the machine body works, so that the whole vibration intensity of the rotating shaft is not favorably and reasonably reduced, and the working noise of the whole machine is not favorably reduced. If H/L is more than 0.52, the radial runout amplitude of the upper part of the rotating shaft is larger when the machine body works, so that the integral vibration intensity of the rotating shaft is not favorably and reasonably reduced, and the working noise of the whole machine is not favorably reduced.

3. The distance between the top end of the rotating shaft and the center of the motor is reasonably set, so that the rotating shaft meets the damping requirement and the crushing cutter meets the processing requirement. If the distance between the top end of the rotating shaft and the center of the motor is less than 55mm, the top end of the rotating shaft is lower relative to the crushing cup, and the position of the crushing knife in the crushing cup is also lower, so that the crushing knife can not meet the processing requirements of cutting and crushing materials. If the distance between the top end of the rotating shaft and the center of the motor is larger than 85mm, the radial runout of the upper part of the rotating shaft is larger when the motor works, and the working noise of the whole machine is not favorably reduced.

4. The rotating shaft and the cup bottom are in sealing fit through the sealing ring, and the liquid in the grinding cup is prevented from flowing downwards into the main machine through a gap between the rotating shaft and the cup bottom to cause adverse effects on electric elements in the main machine. The positioning seat is positioned and arranged, the top of the positioning seat is abutted to the sealing ring, the sealing ring is positioned in an effective axial direction through the positioning seat, and the stability of sealing fit between the rotating shaft and the cup bottom through the sealing ring is guaranteed.

5. The positioning seat supports and realizes the location setting on the protruding circle, makes the positioning seat receive axial positioning under the prerequisite that does not interfere the bearing through the conflict with the protruding circle, guarantees the structural stability of positioning seat. The part of positioning seat is located the inner periphery on protruding edge, makes the positioning seat receive effectual radial positioning through the cooperation with protruding edge, is favorable to improving the structural stability of positioning seat to be favorable to further improving the structural stability of sealing washer.

6. The positioning seat and the sealing ring are arranged in the boss of the cup bottom, the positioning seat and the sealing ring are effectively and radially positioned through the boss, the structural stability of the positioning seat and the sealing ring is improved, and the stability of sealing fit between the rotating shaft and the cup bottom through the sealing ring is improved.

7. The damping sleeve is established to the outside cover of sealing washer, realizes the flexible coupling between pivot and the crushing cup through the damping sleeve, is favorable to weakening the vibrations transmission between motor and the crushing cup to be favorable to further lightening the noise at work of complete machine.

8. Set up location muscle and constant head tank complex location structure between positioning seat and the sealing washer, further improve the radial stability of sealing washer through location structure to sealed complex stability between pivot and the bottom of cup can further be improved.

9. The top side of sealing washer sets up and stretches into in the shaft hole and hugs closely in the lip edge of pivot, sets up on the internal perisporium of sealing washer and hugs closely in changeing epaxial sealing rib, through lip edge, sealing rib reduce the cooperation area between sealing washer and the pivot when realizing sealed complex between pivot and the bottom of cup, can reduce the pivot when rotating and the life of sealing washer, be favorable to prolonging the sealing washer.

10. When the motor works, the rotating shaft drives the fan to rotate to form heat dissipation airflow which flows through the interior of the motor and is then discharged out of the host machine through the heat dissipation channel, the heat dissipation effect of the motor is greatly improved through the heat dissipation airflow, and the condition that the motor is burnt due to overhigh working temperature is avoided.

Drawings

FIG. 1 is a cross-sectional view of a food processor according to an embodiment;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view of a portion of a food processor according to an embodiment;

FIG. 4 is an exploded view of the seal ring and the positioning seat of the food processor according to the embodiment;

FIG. 5 is an exploded view of some of the components of a food processor according to one embodiment;

FIG. 6 is a cross-sectional view of a main body of a food processor according to an embodiment;

FIG. 7 is an enlarged view of a portion of a food processor according to a second embodiment of the present invention.

In the figure, 100-a main machine, 110-a heat dissipation channel, 200-a crushing cup, 210-an upper cup body, 220-a lower cup body, 230-a cup bottom, 231-a shaft hole, 232-a boss, 240-a crushing knife, 300-a motor, 310-a rotating shaft, 320-a bearing, 330-a sealing ring, 331-a lip edge, 332-a sealing rib, 340-a positioning seat, 341-a positioning edge, 350-a damping sleeve, 361-a positioning rib, 362-a positioning groove, 370-a fan, 400-a bracket, 410-a mounting cavity, 420-a convex ring, 421-a convex edge, 500-an air guide cover, 610-a control plate, 620-a liquid discharge valve and 630-a liquid discharge nozzle.

Detailed Description

The utility model is further described with reference to the following figures and specific examples. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used merely to indicate an orientation or positional relationship relative to one another as illustrated in the drawings, merely to facilitate describing and simplifying the utility model, and are not intended to indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore are not to be considered limiting of the utility model.

Example one

As shown in fig. 1 to 6, a food processor with small vibration according to an embodiment of the present invention includes a main body 100 and a grinding cup 200, wherein a driving assembly is disposed in the main body 100, the driving assembly includes a motor 300 having a rotating shaft 310, a cup bottom 230 of the grinding cup 200 is disposed in the main body 100 and has a shaft hole 231 for the rotating shaft 310 to extend into the grinding cup 200, and a grinding blade 240 connected to a top end of the rotating shaft 310 is disposed in the grinding cup 200. The upper portion of the rotating shaft 310 is sleeved with a bearing 320, the driving assembly further includes a bracket 400 disposed at the top of the motor 300, the bracket 400 is provided with a mounting cavity 410 for mounting the bearing 320, and the bearing 320 is disposed in the mounting cavity 410.

The bearing on the upper portion of the rotating shaft is sleeved in the mounting cavity of the support, a spring which is used for enabling the bearing to be axially positioned and is adopted in the structure of the existing food processor can be omitted, the mounting height of the bearing relative to the motor is effectively reduced, the length of the upper portion of the rotating shaft can be reasonably reduced, the radial runout of the upper portion of the rotating shaft during the working of the motor is favorably reduced, the vibration intensity of the motor is favorably reduced, the working noise of a crushing cutter is favorably reduced, and the working noise of the whole machine is favorably reduced.

In this embodiment, the grinding cup 200 includes an upper cup 210 and a lower cup 220 detachably engaged with each other, the lower cup 220 is fixed in the main body 100, and a bottom wall of the lower cup 220 forms a cup bottom 230. The motor 300 is suspended inside the main body 100 by a bracket 400, and the bracket 400 is fixed inside the main body 100 by bolts. The upper portion of the rotating shaft 310 passes through the bracket 400, and the mounting cavity 410 is disposed around the rotating shaft 310. Specifically, the bracket 400 is provided with a convex ring 420 enclosing the installation cavity 410, and the bearing 320 is arranged on the inner periphery of the convex ring 420. The radial positioning of the bearing 320 by the convex ring 420 is beneficial to improving the radial stability of the bearing 320, thereby being beneficial to improving the radial stability of the upper part of the rotating shaft 310.

In order to reduce the overall radial run-out of the rotating shaft 310, the length and the occupation ratio of the upper part of the rotating shaft 310 need to be reasonably set. The distance between the top end of the rotating shaft 310 and the center of the motor 300 is H, the total length of the rotating shaft 310 is L, H/L is more than or equal to 0.38 and less than or equal to 0.52, and H is more than or equal to 55mm and less than or equal to 85 mm. In this embodiment, H is preferably set to 65mm, and H/L is preferably set to 0.43.

The inner diameter of the shaft hole 231 is larger than the outer diameter of the rotating shaft 310, and the rotating shaft 310 is in clearance fit with the shaft hole 231. In order to prevent the liquid in the pulverizing cup 200 from flowing down into the main unit 100 through the gap between the rotating shaft 310 and the shaft hole 231 and affecting the performance of the main unit 100, the rotating shaft 310 is sleeved with a sealing ring 330 above the bearing 320, and the sealing ring 330 is used for realizing the sealing fit between the rotating shaft 310 and the cup bottom 230, thereby playing a role in preventing leakage.

In order to make the sealing ring 330 meet the sealing fit requirement and reduce the obstruction to the rotation of the rotating shaft 310, the top side of the sealing ring 330 is provided with a ring of lip 331 extending into the shaft hole 231, and the lip 331 is tightly attached to the rotating shaft 310. The matching area between the sealing ring 330 and the rotating shaft 310 is reduced through the lip 331, so that the friction force between the sealing ring 330 and the rotating shaft 310 during the rotation of the rotating shaft 310 can be reduced, the obstruction of the sealing ring 330 to the rotation of the rotating shaft 310 is reduced, and the service life of the sealing ring 330 is prolonged.

In order to ensure the axial stability of the sealing ring 330, a positioning seat 340 located between the sealing ring 330 and the bearing 320 is further sleeved on the rotating shaft 310, the positioning seat 340 is positioned, and the top of the positioning seat 340 abuts against the sealing ring 330. The sealing ring 330 is axially positioned by the positioning seat 340, so that the stability of the sealing fit between the rotating shaft 310 and the cup bottom 230 through the sealing ring 330 is ensured. In this embodiment, the bottom of the positioning seat 340 abuts against the convex ring 420 to achieve positioning, and interference to the bearing 320 can also be avoided.

In order to improve the stability of the positioning seat 340, the top end of the convex ring 420 is provided with a circle of convex edge 421 protruding toward the center of the mounting cavity 410, the inner edge of the bottom of the positioning seat 340 is provided with a circle of positioning edge 341 protruding downward, the positioning edge 341 is located on the inner periphery of the convex edge 421, the positioning seat 340 is radially positioned by the matching of the positioning edge 341 and the convex edge 421, which is favorable for improving the structural stability of the positioning seat 340, and is favorable for further improving the structural stability of the sealing ring 330.

Referring to fig. 4, a positioning structure is further disposed between the positioning seat 340 and the sealing ring 330, the positioning structure includes a positioning rib 361 and a positioning groove 362 that are matched with each other, and the positioning rib 361 is embedded in the positioning groove 362. In this embodiment, the bottom side of the sealing ring 330 is provided with a circle of positioning ribs 361, the top side of the positioning seat 340 is provided with a circle of positioning grooves 362 matched with the positioning ribs 361, and the radial stability of the sealing ring 330 is further improved through a positioning structure, so that the stability of the sealing fit between the rotating shaft 310 and the lower cup body 220 can be further improved.

The cup bottom 230 is provided with a boss 232 which protrudes downwards around the shaft hole 231, the positioning seat 340 and the sealing ring 330 are positioned in the boss 232, the positioning seat 340 and the sealing ring 330 are radially positioned through the boss 232, and the structural stability of the positioning seat 340 and the sealing ring 330 is improved.

In order to reduce the vibration transmission between the rotating shaft 310 and the lower cup 220, an elastic damping sleeve 350 is further sleeved outside the sealing ring 330, and the damping sleeve 350 is located inside the boss 232. The shock of the rotating shaft 310 is effectively absorbed through the shock-absorbing sleeve 350, the shock transmission between the rotating shaft 310 and the lower cup 220 is weakened, and the working noise of the whole machine is favorably reduced. In this embodiment, the damping sleeve 350 is sleeved outside the positioning seat 340.

In order to reduce the operating temperature of the motor 300, the driving assembly further includes an air guiding cover 500 disposed outside the motor 300, the main body 100 is provided with a heat dissipating channel 110 disposed at the bottom of the driving assembly, and the lower portion of the rotating shaft 310 extends into the heat dissipating channel 110 and is sleeved with a fan 370. An air inlet is arranged at the bottom side of the main body 100, and an air outlet is arranged at the rear side of the main body 100. When the motor 300 works, the rotating shaft 310 drives the fan 370 to rotate, so as to form a heat dissipation airflow which flows through the inside of the motor 300 after flowing from the air inlet and then flows out from the air outlet through the heat dissipation channel 110, and the heat inside the motor 300 is taken away by the heat dissipation airflow, thereby achieving the purpose of heat dissipation of the motor 300.

In order to realize the intelligent control of the machine body, a control panel 610 and a drain valve 620 are further arranged on the front side in the main machine 100, a liquid outlet is arranged at the bottom end of the lower cup 220, the drain valve 620 is arranged at the liquid outlet, and the drain valve 620 is connected with a drain nozzle 630 of which the front end extends out of the main machine 100. The electric elements such as the motor 300 and the drain valve 620 are controlled by the control board 610, and the control board 610 can control the start and stop of the motor 300, the on/off of the drain valve 620, and the like according to a set processing program.

When the machine body works, the rotating shaft 310 of the motor 300 drives the crushing cutter 240 to rotate at a high speed to cut and crush the materials in the crushing cup 200, and the rotating shaft 310 simultaneously drives the fan 370 to rotate to form heat dissipation airflow flowing through the inside of the motor 300. Because the bearing 320 is arranged in the mounting cavity 410 of the bracket 400 and the sealing ring 330 is axially positioned in the boss 323 through the positioning seat 340, the length of the upper part of the rotating shaft 310 is shortened compared with the existing structure, the radial runout amplitude of the top end of the rotating shaft 310 during the operation of the motor 300 is reduced, the vibration intensity of the motor 300 is favorably reduced, the working noise of the crushing cutter 240 is favorably reduced, and the working noise of the whole machine is favorably reduced.

It is understood that the grinding cup 200 may also be configured to cooperate with a cup body, a lid, and a hot plate.

It is understood that the center of the motor 300 described above refers to the center of gravity of the motor 300.

It is understood that the distance H between the top end of the rotating shaft 310 and the center of the motor 300 can be set to other reasonable distance values such as 55mm, 57mm, 60mm, 63mm, 66mm, 70mm, 73mm, 76mm, 78mm, 80mm, 82mm, 85mm, etc.

It is understood that H/L may be set to other reasonable ratios of 0.38, 0.4, 0.42, 0.45, 0.47, 0.49, 0.51, 0.52, etc.

It is understood that the positions of the positioning rib 361 and the positioning groove 362 can be interchanged.

It can be understood that, instead of the lip 331, a plurality of sealing ribs spaced up and down may be disposed on the inner peripheral wall of the sealing ring 330, and the sealing ribs are tightly attached to the rotating shaft 310.

It will be appreciated that the sealing ring 330 may also be provided with both a lip 331 and a sealing rib.

It is understood that the positioning edges 341 and the protruding edges 421 can be eliminated on the premise of satisfying the structural stability requirement.

Example two

Referring to fig. 7, in the present embodiment, the damping sleeve 350 is omitted, and the outer circumferential wall of the sealing ring 330 directly contacts the inner circumferential wall of the boss 232. Due to the elasticity of the sealing ring 330, the vibration transmission between the rotating shaft 310 and the lower cup 220 can be reduced to some extent to meet the requirement of vibration absorption.

In order to ensure the sealing effect between the cup bottom 230 and the rotating shaft 310, a plurality of sealing ribs 332 are disposed on the inner peripheral wall of the sealing ring 330, and the sealing ribs 332 are disposed up and down and tightly attached to the rotating shaft 310.

The other structures of the second embodiment are the same as those of the first embodiment, and are not described in detail here.

Other embodiments of the present invention than the preferred embodiments described above, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, should fall within the scope of the present invention defined in the claims.

Claims

1. The food processing machine with small vibration comprises a main machine and a crushing cup, wherein a driving assembly is arranged in the main machine, the driving assembly comprises a motor provided with a rotating shaft, the bottom of the crushing cup is arranged in the main machine and is provided with a shaft hole for the rotating shaft to extend into the crushing cup, and a crushing cutter connected to the top end of the rotating shaft is arranged in the crushing cup.

2. The food processor of claim 1, wherein the distance between the top end of the shaft and the center of the motor is H, the total length of the shaft is L, and 0.38H/L0.52.

3. The food processor of claim 1, wherein the distance between the top end of the shaft and the center of the motor is 55mm to 85 mm.

4. The food processor as defined in claim 1, wherein the shaft is sleeved with a sealing ring above the bearing and a positioning seat therebetween, the shaft and the cup bottom are in sealing engagement with each other via the sealing ring, the positioning seat is positioned and the top portion abuts against the sealing ring.

5. The food processor as defined in claim 4, wherein the bracket is provided with a convex ring enclosing the mounting cavity, the top end of the convex ring is provided with a convex edge protruding towards the center of the mounting cavity, and the positioning part is abutted against the convex ring to realize positioning arrangement and is partially positioned on the inner periphery of the convex edge.

6. The food processor of claim 4, wherein the cup bottom includes a downwardly projecting boss surrounding the axial bore, the locating seat and the sealing ring being located within the boss.

7. The food processor as defined in claim 6, wherein the outer sleeve of the sealing ring is provided with a damping sleeve, and the damping sleeve is positioned in the boss.

8. The food processor as defined in claim 4, wherein a positioning structure is disposed between the positioning seat and the sealing ring, the positioning structure includes a positioning rib and a positioning groove that are engaged with each other, and the positioning rib is embedded in the positioning groove.

9. The food processor as defined in claim 4, wherein the inner diameter of the shaft hole is larger than the outer diameter of the shaft, and the top side of the seal ring is provided with a lip edge extending into the shaft hole, the lip edge clinging to the shaft; and/or a plurality of sealing ribs which are distributed up and down are arranged on the inner peripheral wall of the sealing ring, and the sealing ribs are tightly attached to the rotating shaft.

10. The food processor as defined in any one of claims 1 to 9, wherein the driving assembly further comprises a wind scooper disposed outside the motor, the main body is provided with a heat dissipation channel disposed at a bottom of the driving assembly, and a lower portion of the rotating shaft extends into the heat dissipation channel and is sleeved with a fan.