CN220134534U - Main machine for food processor and food processor - Google Patents

Abstract

The utility model relates to the technical field of food processing devices, in particular to a host machine for a food processing machine and the food processing machine, which comprise an upper end cover and a lower end cover which enclose a mounting cavity, wherein an upper support, a lower support and a planet wheel assembly arranged between the upper support and the lower support are arranged in the mounting cavity, an output hole is arranged on the bottom wall of the lower end cover, an output shaft extending out of the output hole is arranged on the lower support, an inner gear ring and a supporting part protruding inwards are arranged on the inner side of the lower end cover, the supporting part is positioned below the inner gear ring, the planet wheel assembly comprises planet wheels protruding outwards in the radial direction relative to the lower support, the periphery of the planet wheels is meshed with the inner gear ring, the bottom ends of the planet wheels are supported on the supporting part, and the bottom wall of the lower end cover and the bottom wall of the lower support are arranged in a separated mode. The smoothness and durability of the operation of the host are improved, and the operation noise is reduced.

Description

Main machine for food processor and food processor

Technical Field

The utility model relates to the technical field of food processing devices, in particular to a host machine for a food processing machine and the food processing machine.

Background

To the host computer of meat grinder, the output rotational speed of general motor is higher, in order to guarantee that the during operation can have great load torque, prevents simultaneously that vibrations, noise big problem from appearing because the rotational speed is higher, generally all needs to set up gear reduction box at the motor output, carries out the deceleration to the motor rotational speed to improve the load capacity of complete machine and reduce vibration noise.

As shown in fig. 1, a conventional reduction gearbox generally includes an upper end cover 10, an upper carrier 30 between which a lower end cover 20 is mounted, a planetary gear assembly 40, and a lower carrier 50, the side wall of the lower end cover 20 is provided with an inner gear ring 22 to engage with planetary gears 41 in the planetary gear assembly, the lower carrier 50 is provided with an output shaft 51, and the output shaft 51 protrudes from an output hole 21 of the lower end cover 20. Wherein, the lower end cover 20 is convexly provided with supporting ribs 200 to support the lower bracket 50, so that the whole planetary assembly realizes reliable limit.

Because the lower support needs to drive the stirring piece to rotate through the output shaft of the lower support to realize crushing, the lower support rotates at a high speed relative to the lower end cover, so that the supporting rib is in direct contact with the lower support, and smooth rotation of the lower support is not facilitated. In the prior art, grease is generally smeared at the supporting rib, however, if too much grease is smeared at the supporting rib, the risk of oil throwing is increased, if too little grease is smeared at the supporting rib, when the host machine continuously works for a long time, the grease at the supporting rib can be greatly lost, the friction between the supporting rib and the lower bracket can be increased along with the lengthening of the running time, the host machine is unstable in running, and the durability of the host machine is poor. In addition, as the planet gears are meshed with the annular gear to form radial contact, and the lower support is in supporting contact with the support ribs of the lower end cover, the contact points of the whole planet assembly and the lower end cover support are more, grease is required to be smeared at the planet gears, grease is required to be smeared between the support ribs and the lower support, and a grease smearing process is increased.

Disclosure of Invention

The utility model provides a host machine for a food processing machine and the food processing machine, and aims to solve the problem of unstable operation of the host machine on the premise of ensuring that a planetary assembly is limited reliably and runs permanently.

In order to achieve the above purpose, the utility model provides a host machine for a food processor, which comprises a motor and a reduction gearbox, wherein the reduction gearbox comprises an upper end cover and a lower end cover which enclose a mounting cavity, an upper support, a lower support and a planet wheel assembly arranged between the upper support and the lower support are arranged in the mounting cavity, an output hole is arranged on the bottom wall of the lower end cover, an output shaft extending out of the output hole is arranged on the lower support, an inner gear ring and a supporting part protruding inwards are arranged on the inner side of the lower end cover, the supporting part is positioned below the inner gear ring, the planet wheel assembly comprises planet wheels protruding outwards in the radial direction relative to the lower support, the periphery of the planet wheels is meshed with the inner gear ring, the bottom ends of the planet wheels are supported on the supporting part, and the bottom wall of the lower end cover and the bottom wall of the lower support are arranged in a separated mode.

According to the utility model, the planetary gear assembly comprises the planetary gears protruding outwards in the radial direction relative to the lower support, so that the contact area between the planetary gears and the lower support is reduced on the basis of realizing reliable transmission, and further friction and noise are reduced. Through set up supporting part in the inboard of lower extreme cover, the bottom support of planet wheel is on supporting part, to planet wheel axial support, only utilizes the contact between planet wheel and the lower extreme cover, realizes the holistic reliable spacing of planet subassembly and meshing transmission, compact structure does benefit to the direct wearing and tearing and the interference that the lower extreme cover caused the lower carriage, improves the smoothness and the persistence of host computer operation, reduces the running noise. The bottom wall of the lower end cover and the bottom wall of the lower support are arranged separately, so that the contact area and the contact point between the whole planetary assembly and the lower end cover are reduced, interference is avoided, and the operation is smooth; compared with the prior art, the oil does not need to be added between the lower end cover and the lower bracket, so that the oil coating process and the oil consumption are reduced, and the risk of oil throwing caused by excessive oil coating is reduced.

Preferably, the planet wheels are provided with external teeth, the ring gear is provided with internal teeth, and the external teeth are meshed with the internal teeth and are in clearance fit.

Because the output shaft of the lower bracket can receive great load in the process of driving the stirring piece to minced steak or vegetable, the deflection possibly occurs, therefore, clearance fit between the internal teeth and the external teeth is realized, the phenomenon that the planet gears are clamped in a rotating way when the lower bracket deflects is avoided, the host machine runs smoothly, the working noise is reduced, the contact area between the planet gears and the annular gear is further reduced through clearance fit between the internal teeth and the external teeth, the friction resistance is reduced, and the smoothness and the durability of the operation of the host machine are improved.

Preferably, the side wall of the lower end cover is inwards bent to form a step part, the step part is provided with an upward step surface, and the step surface forms a supporting part;

the side wall of the lower end cover is inwards bent to form the step part, so that the planetary gear is supported while the bottom size of the lower end cover is reduced, and the structure is compact. Meanwhile, the side face of the step part can play a certain guiding role in the process of installing the planetary assembly, and the assembly efficiency is improved. The side surface of the step part is utilized, and when the lower bracket deflects to a greater extent, the radial limiting effect is achieved on the lower bracket. The rotary coaxiality of the lower bracket is facilitated, and the running smoothness of the host is improved.

Preferably, the inner side wall of the lower end cover is convexly provided with a supporting plate, and the supporting plate forms a supporting part.

The supporting plate is arranged on the inner side wall of the lower end cover in a protruding mode to form the supporting portion, the structure of the lower end cover is further simplified, the supporting plate can support the planet gears, and meanwhile the supporting plate can serve as a reinforcing structure for the side wall of the lower end cover, and therefore structural strength of the lower end cover is reinforced.

Preferably, the lower bracket is clearance fitted with the side face of the support portion.

Through the side clearance fit with lower carriage and supporting part, compare under the condition of lower carriage and supporting part contact, further reduce the area of contact of lower carriage and lower extreme cover, reduce the lower carriage and rotate the risk of receiving the interference, improve the smoothness and the persistence of host computer operation, reduce the running noise. Moreover, the clearance fit of the side of the lower bracket with the support portion facilitates the installation of the lower bracket in place.

Preferably, the bottom wall of the lower end cover comprises a body for shielding the lower bracket and a ring rib protruding from the body to the lower bracket, and a gap is arranged between the ring rib and the bottom wall of the lower bracket.

The lower end cover comprises a body and a ring rib, the body realizes the integrity of the whole structure of the reduction gearbox, and the ring rib can play a role in blocking grease on the inner side of the lower end cover on one hand so as to prevent the grease from being thrown out; on the other hand, when the lower bracket deflects and the degree of deflection is too large, the lower bracket can be preferentially contacted with the annular rib rather than directly contacted with the body, so that the lower bracket is prevented from directly wearing the body of the lower end cover, and the contact area of the lower bracket and the annular rib is relatively small under the condition, so that the rotary interference is effectively prevented.

Preferably, the annular rib comprises a first annular rib surrounding the output hole and a second annular rib surrounding the outer side of the first annular rib, a first oil storage tank is formed between the outer side wall of the first annular rib and the inner side wall of the second annular rib, and a second oil storage tank is formed between the outer side wall of the second annular rib and the inner side wall of the lower end cover.

The first annular rib and the second annular rib are arranged to play a role in multiply blocking grease, so that a flowing path of the grease on the supporting surface of the lower end cover, which flows to the output hole, is more tortuous, and the difficulty of flowing the grease to the output hole is increased; the first oil storage tank is formed between the outer side wall of the first ring rib and the inner side wall of the second ring rib, and the second oil storage tank is formed between the outer side wall of the second ring rib and the inner side wall of the lower end cover, so that even if the grease at the inner side wall of the lower end cover is thinned due to heating, the second oil storage tank plays a temporary storage role on the grease flowing down, the grease is prevented from flowing out to the output hole further, and the grease temporarily stored in the second oil storage tank can play a lubricating role in the running process of the planetary gear assembly, so that the grease loss is avoided, the grease is fully utilized, the abrasion of the planetary gear assembly is reduced, and the friction noise is reduced; the first oil storage tank continues to store grease, avoids grease to be close to the output hole further, and consequently, second oil storage tank and first oil storage tank combine, realize blockking the effect of grease and collecting grease layer upon layer, on realizing reducing the basis of subassembly wearing and tearing, noise reduction, effectively reduce the reducing gear box and throw away oily risk, reduce the loss of grease, prevent that the edible material from being polluted, use cleaner and health, the clearance after omitting the grease and flow is troublesome, use more saving worry.

Preferably, the host computer still includes the fixed column with upper bracket fixed connection, and the lower carriage is equipped with the fixed slot, and the fixed column interference is pegged graft in the fixed slot makes upper bracket and lower carriage fixed connection.

The upper bracket and the lower bracket are connected through the fixing column, compared with the traditional mode of locking by adopting screws, the assembly process of the upper bracket and the lower bracket is further simplified, the assembly time is saved, the assembly efficiency is improved, and the assembly cost is saved.

Preferably, the fixed column is integrally and convexly arranged on the bottom surface of the upper bracket;

the fixing column is integrally arranged on the bottom surface of the upper bracket in a protruding mode, the step of fixedly connecting the fixing column with the upper bracket is omitted, the assembly process is further simplified, and the assembly time is saved.

Preferably, the upper bracket is provided with a fixing hole, and the fixing column is inserted in the fixing hole in an interference manner.

The fixed column and the upper bracket are in interference fit, and when the upper bracket and the lower bracket are assembled, the fixed column is inserted after the upper bracket and the lower bracket are aligned, so that the fixed column and the fixed slot of the lower bracket are aligned quickly and intuitively, and the operation is convenient.

Preferably, the upper bracket and the lower bracket are respectively provided with an upper through hole and a lower through hole corresponding to the end parts of the fixed columns, the inner bottom wall of the lower end cover is convexly provided with a first annular rib, a gap is arranged between the first annular rib and the bottom wall of the lower bracket, and the first annular rib is blocked between the lower through hole and the output hole along the radial direction.

Through setting up through-hole and lower through-hole for pour into grease, and make the periphery or the constant head tank that the grease effectively reach the fixed column, play lubricated effect. In order to avoid the grease to throw out from the output hole when the grease is too much, the first annular rib is blocked between the lower through hole and the output hole along the radial direction, so that the reduction gearbox is prevented from throwing oil, a gap is arranged between the first annular rib and the bottom wall of the lower bracket, friction and interference with the lower bracket are avoided, and the host machine runs smoothly.

The utility model also provides a food processor which comprises a stirring cup, a stirring piece arranged in the stirring cup, a cup cover covered on the stirring cup and the host machine, wherein the host machine is arranged above the cup cover, and the top end of the stirring piece is in transmission connection with the output shaft of the lower bracket.

The food processor provided by the utility model adopts the main machine in the food processing process, so that the working noise is effectively reduced, the operation of the main machine is smoother and lasting, the risk of oil throwing is reduced, and the use is cleaner and sanitary.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a reduction gearbox in the background art of the utility model.

Fig. 2 is a perspective view showing an exploded structure of a reduction gearbox according to the first and third embodiments of the present utility model.

Fig. 3 is a schematic cross-sectional view of a reduction gearbox according to the first and third embodiments of the present utility model.

Fig. 4 is an enlarged partial view of the portion a in fig. 3.

Fig. 5 is a partially enlarged schematic view of the portion B in fig. 3.

Fig. 6 is a schematic structural view of an upper bracket according to the first and third embodiments of the present utility model.

Fig. 7 is an exploded sectional view of a reduction gearbox according to the first and third embodiments of the present utility model.

Fig. 8 is a schematic diagram of a food processor according to the second and fourth embodiments of the present utility model.

Fig. 9 is a schematic cross-sectional view of a reduction gearbox according to another embodiment of the present utility model.

Fig. 10 is a schematic cross-sectional view of a reduction gearbox according to yet another embodiment of the present utility model.

Reference numerals illustrate:

100-host computer; 101-an electric motor; 102-a reduction gearbox; 103-stirring cup; 104-stirring piece; 105-cup cover; 106-positioning the shaft; 10-an upper end cap; 20-a lower end cap; 21-an output aperture; 22-an inner gear ring; 221-internal teeth; 23-a first ring rib; 24-second ring ribs; 25-a first oil reservoir; 26-a second oil reservoir; 30-upper support; 31-fixing the column; 32-upper through holes; 40-planetary wheel assembly; 41-planet wheels; 411-external teeth; 42-sun gear; 50-a lower bracket; 51-an output shaft; 52-a fixed groove; 53-lower through holes; 54-third ring ribs; 60-supporting part; 200-supporting ribs.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than as described herein, and therefore the scope of the present utility model is not limited by the specific embodiments disclosed below.

Embodiment one

As shown in fig. 2-7, the present embodiment provides a mainframe for a food processor, the mainframe includes a motor and a reduction gearbox 102, the reduction gearbox 102 includes an upper end cover 10 and a lower end cover 20 enclosing a mounting cavity, an upper support 30, a lower support 50 and a planetary gear assembly 40 disposed between the upper support 30 and the lower support 50 are disposed in the mounting cavity, an output hole 21 is disposed at a bottom wall of the lower end cover 20, an output shaft 51 extending from the output hole 21 is disposed at the lower support 50, an inner ring gear 22 and an inwardly protruding support portion 60 are disposed at an inner side wall of the lower end cover 20, the support portion 60 is disposed below the inner ring gear 22, the planetary gear assembly 40 includes a sun gear 42 and a planetary gear 41 which are mutually matched, the sun gear 42 is driven by the motor 101, the planetary gear 41 protrudes radially outwards relative to the lower support 50, an outer periphery of the planetary gear 41 is engaged with the inner ring gear 22, a bottom end of the planetary gear 41 is supported on the support portion 60, and a bottom wall of the lower end cover 20 and a bottom wall of the lower support 50 are separately disposed.

It should be noted that, the bottom wall of the lower end cap 20 includes a bottom wall body of the lower end cap 20 and a structure disposed on the bottom wall body, and it should be understood that the lower bracket 50 is completely spaced with respect to the lower end cap 20.

According to the utility model, the planetary gear assembly 40 comprises the planetary gears 41 protruding outwards in the radial direction relative to the lower support 50, so that the contact area between the planetary gears 41 and the lower support 50 is reduced on the basis of realizing reliable transmission, and further friction and noise are reduced. Through setting up supporting part 60 in the inboard of lower end cover 20, the bottom of planet wheel 41 supports on supporting part 60, to planet wheel 41 axial support, only utilizes the contact between planet wheel 41 and the lower end cover 20, realizes the whole reliable spacing of planet subassembly and meshing transmission, compact structure does benefit to the direct wearing and tearing and the interference that lower end cover 20 caused lower carriage 50, improves the smoothness and the persistence of host computer 100 operation, reduces the running noise. The bottom wall of the lower end cover 20 and the bottom wall of the lower bracket 50 are arranged separately, so that the contact area and the contact point between the whole planetary assembly and the lower end cover 20 are reduced, interference is avoided, and the operation is smooth; compared with the prior art, no grease is required to be added between the lower end cover 20 and the lower bracket 50, so that the oiling process and the using amount are reduced, and the risk of oil throwing caused by excessive grease smearing is reduced.

As shown in fig. 2, the planet wheel 41 is preferably provided with external teeth 411, the ring gear 22 is provided with internal teeth 221, and the external teeth 411 mesh with the internal teeth 221 and are in clearance fit.

Because the output shaft 51 of the lower bracket 50 receives a larger load in the process of mincing or chopping the stirring piece 104, the deflection may occur, and therefore, clearance fit between the inner teeth and the outer teeth is avoided, the rotation and clamping stagnation of the planet wheel 41 during deflection of the lower bracket 50 are avoided, so that the host 100 operates smoothly, the working noise is reduced, the contact area between the planet wheel 41 and the inner gear ring 22 is further reduced through clearance fit between the inner teeth and the outer teeth, the friction resistance is reduced, and the smoothness and durability of the operation of the host 100 are improved.

As shown in fig. 3, the side wall of the lower end cap 20 is preferably inwardly bent to form a stepped portion having an upward stepped surface, which constitutes the supporting portion 60.

The side wall of the lower end cover 20 is bent inwards to form a step part, so that the planetary gears 41 are supported while the bottom size of the lower end cover 20 is reduced, and the structure is compact. Meanwhile, the side face of the step part can play a certain guiding role in the process of installing the planetary assembly, and the assembly efficiency is improved. By using the side surface of the step portion, when the lower bracket 50 is biased to a large extent, the radial limiting effect is achieved on the lower bracket 50. The rotational coaxiality of the lower bracket 50 is facilitated, and the smoothness of the operation of the host 100 is improved.

Of course, the forming mode of the supporting portion is not limited to the above one, and in fact, in another embodiment, as shown in fig. 9, the outer side wall of the lower end cap 20 is a vertical wall, and the supporting portion 60 is a step portion protruding inward from the inner side wall of the lower end cap 20, and the step portion extends to be connected to the bottom wall of the lower end cap 20.

In still another embodiment, as shown in fig. 10, the inner side wall of the lower end cap 20 is convexly provided with a support plate, which constitutes the support portion 60. Specifically, the support plate may be an annular plate formed along the circumferential direction of the lower end cover, or may include a plurality of sub plates arranged at intervals along the circumferential direction of the lower end cover. Preferably, the support plate is suspended relative to the bottom wall of the lower end cover.

The support plate is arranged on the inner side wall of the lower end cover 20 in a protruding manner to form the support part 60, so that the structure of the lower end cover 20 is further simplified, the support plate can support the planet gears 41, and the support plate can serve as a reinforcing structure for the side wall of the lower end cover 20, so that the structural strength of the lower end cover 20 is reinforced.

Preferably, the lower bracket 50 is clearance fitted with the side of the supporting portion 60.

By clearance fit of the lower bracket 50 and the side surface of the supporting portion 60, the contact area between the lower bracket 50 and the lower end cover 20 is further reduced, the risk that the rotation of the lower bracket 50 is interfered is reduced, the smoothness and durability of the operation of the host 100 are improved, and the operation noise is reduced compared with the case that the lower bracket 50 is in contact with the supporting portion 60. Moreover, the side clearance fit of the lower bracket 50 with the support portion 60 facilitates the installation of the lower bracket 50 in place.

As shown in fig. 2, 3 and 4, preferably, the bottom wall of the lower end cap 20 includes a body shielding the lower bracket 50 and a ring rib protruding from the body toward the lower bracket 50, and a gap is provided between the ring rib and the bottom wall of the lower bracket 50. More preferably, as shown in fig. 2, the annular rib includes a first annular rib 23 surrounding the output hole 21 and a second annular rib 24 surrounding the outer side of the first annular rib 23, a first oil storage tank 25 is formed between the outer side wall of the first annular rib 23 and the inner side wall of the second annular rib 24, and a second oil storage tank 26 is formed between the outer side wall of the second annular rib 24 and the inner side wall of the lower end cover 20.

By arranging the first annular rib 23 and the second annular rib 24, the effect of multiple blocking of grease is achieved, so that a flowing path of the grease on the supporting surface of the lower end cover 20, which flows to the output hole 21, is more tortuous, and the difficulty of the grease flowing to the output hole 21 is increased; the grease that first oil storage tank 25 and second oil storage tank 26 are to flowing down plays the temporary storage effect, avoids grease to further flow to output hole 21, on realizing reducing the wearing and tearing of subassembly, noise reduction's basis, effectively reduces reduction gearbox 102 and throws away the oil risk, reduces the loss of grease, prevents that the food from being polluted, uses cleaner and health, and the clearance after omitting the grease and flowing out is troublesome, uses more and saves worry.

As shown in fig. 3 and 5, the host 100 preferably further includes a fixing post 31 fixedly connected to the upper bracket 30, and the lower bracket 50 is provided with a fixing groove 52, and the fixing post 31 is inserted into the fixing groove 52 in an interference manner so that the upper bracket 30 is fixedly connected to the lower bracket 50.

The upper bracket 30 and the lower bracket 50 are connected through the fixing column, and compared with the traditional mode of locking by using screws, the assembly process of the upper bracket 30 and the lower bracket 50 is further simplified, the assembly time is saved, the assembly efficiency is improved, and the assembly cost is saved.

In the present embodiment, for example, as shown in fig. 6, the fixing post 31 is preferably integrally protruded on the bottom surface of the upper bracket 30; the fixing column 31 is integrally and convexly arranged on the bottom surface of the upper bracket 30, so that the step of fixedly connecting the fixing column 31 with the upper bracket 30 is omitted, the assembly process is further simplified, and the assembly time is saved.

In another preferred embodiment, the upper bracket 30 is preferably provided with a fixing hole in which the fixing post is interference-fitted. The fixed column 31 and the upper bracket 30 are in interference fit, and when the upper bracket 30 and the lower bracket 50 are assembled, the fixed column can be inserted after being aligned, so that the fixed column and the fixed slot of the lower bracket 50 can be aligned quickly and intuitively, and the operation is convenient.

As shown in fig. 5, preferably, the upper bracket 30 and the lower bracket 50 are respectively provided with an upper through hole 32 and a lower through hole 53 corresponding to the ends of the fixing column 31, the inner bottom wall of the lower end cap 20 is convexly provided with a first annular rib 23, a gap is provided between the first annular rib 23 and the bottom wall of the lower bracket 50, and the first annular rib 23 is blocked between the lower through hole and the output hole 21 in the radial direction.

Through setting up through-hole 32 and lower through-hole 53 for pour in grease, and make the periphery or the constant head tank of grease effective arrival fixed column, play lubricated effect. In order to avoid the grease from being thrown out of the output hole 21 when the grease is too much, the first annular rib 23 is blocked between the lower through hole and the output hole 21 along the radial direction, so that the reduction gearbox 102 is prevented from throwing the oil, a gap is arranged between the first annular rib 23 and the bottom wall of the lower bracket 50, friction and interference with the lower bracket 50 are avoided, and the host 100 runs smoothly.

Second embodiment

As shown in fig. 8, the present embodiment provides a food processor including a stirring cup 103, a stirring member 104 provided in the stirring cup 103, a cup cover 105 provided to cover the stirring cup 103, and the main body 100 of embodiment 1, wherein the main body 100 is provided above the cup cover 105, and the top end of the stirring member 104 is in transmission connection with the output shaft 51 of the lower bracket 50.

As shown in fig. 8, when the food processor according to the present embodiment is used, the stirring member 104 is first placed in the stirring cup 103, the bottom end of the stirring member 104 is engaged with the positioning shaft 106, after the food is placed in the stirring cup, the cup cover 105 and the stirring cup 103 are covered, at this time, the top of the stirring member 104 is threaded out of the cup cover 105, and then the main unit is placed above the cup cover, so that the output shaft 51 of the lower bracket is engaged with the top end of the stirring member 104 in a plugging manner. Preferably, a coupling may be provided inside the output shaft of the lower bracket to cooperate with the top end of the stirring member 104.

According to the food processor provided by the utility model, in the food processing process, the host 100 is adopted, so that the working noise is effectively reduced, the host 100 operates more smoothly and durably, the risk of oil throwing is reduced, and the use is cleaner and sanitary.

Embodiment III

As shown in fig. 7, the present utility model provides a mainframe 100 for a food processor, including a motor 101 and a reduction gearbox 102, where the reduction gearbox 102 includes an upper end cover 10 and a lower end cover 20 enclosing a mounting cavity, an upper support 30, a lower support 50 and a planetary wheel assembly 40 disposed between the upper support 30 and the lower support 50 are disposed in the mounting cavity, an output hole 21 is disposed at a bottom wall of the lower end cover 20, an output shaft 51 extending from the output hole 21 is disposed at the lower support 50, a first annular rib 23 surrounding the output hole 21 and a second annular rib 24 surrounding an outer side of the first annular rib 23 are disposed at an inner bottom wall of the lower end cover 20 in a protruding manner, a first oil storage tank 25 is formed between an outer side wall of the first annular rib 23 and an inner side wall of the second annular rib 24, and a second oil storage tank 26 is formed between an outer side wall of the second annular rib 24 and an inner side wall of the lower end cover 20.

In the present embodiment, the supporting and limiting method of the planetary gear assembly including the upper carrier 30, the lower carrier 50, and the planetary gear assembly 40 is not limited, and in the present embodiment, the bottom surface of the planetary gear assembly 40 is preferably supported on the step surface of the step portion in the same manner as the supporting and limiting method provided in embodiment 1. Utilize the step portion not only to lengthen the outflow route of grease, prevent that the grease from throwing away, can also support the bottom surface of planet wheel subassembly 40, be favorable to the stability of structure, the structure is compacter, moreover, the bottom surface and the step portion axial support of planet wheel subassembly 40, thereby can directly paint the grease at the step portion, can improve the wearing and tearing of this position planet wheel subassembly 40, reduce operating noise, can utilize the step portion to hinder the grease to flow again, avoid the grease loss.

Indeed, in another preferred embodiment, the planet assemblies may be supported by the lower carrier at the first ring bar and/or the second ring bar. In still another preferred embodiment, a support part may be provided inside the lower end cover, and the support part supports the lower carrier, thereby supporting the entire planetary assembly.

According to the main machine 100 for the food processor, the first annular rib 23 and the second annular rib 24 surrounding the outer side of the first annular rib 23 are arranged on the inner bottom wall of the lower end cover 20 in a protruding mode, the effect of multiple blocking of grease is achieved, the flowing path of the grease on the supporting surface of the lower end cover 20, which flows to the output hole 21, is more tortuous, and the difficulty of flowing of the grease to the output hole 21 is increased; a first oil storage groove 25 is formed between the outer side wall of the first ring rib 23 and the inner side wall of the second ring rib 24, and a second oil storage groove 26 is formed between the outer side wall of the second ring rib 24 and the inner side wall of the lower end cover 20, so that even if the oil at the inner side wall of the lower end cover 20 is thinned due to heating, the second oil storage groove 26 plays a temporary storage role on the oil flowing down, so that the oil is prevented from flowing out to the output hole 21 further, and the oil temporarily stored in the second oil storage groove 26 can play a lubrication role in the running process of the planetary wheel assembly 40, so that the oil is prevented from being lost, the abrasion of the planetary wheel assembly 40 is reduced, and the friction noise is reduced; the first oil storage tank 25 continues to store grease, avoid grease to be close to the output hole 21 further, therefore, the second oil storage tank 26 and the first oil storage tank 25 combine, realize blockking grease layer by layer and collect the effect of grease layer by layer, on the basis that reduces the subassembly wearing and tearing, noise reduction is realized, effectively reduce reduction gearbox 102 and throw away the oil risk, reduce the loss of grease, prevent that the food from being polluted, use cleaner and sanitary, the clearance after omitting the grease and flowing out is troublesome, use more save worry.

As shown in fig. 3 and 4, preferably, the bottom wall of the lower bracket 50 is convexly provided with a third ring rib 54, the third ring rib 54 extends into the first oil storage tank 25, and the third ring rib 54 is in clearance fit with the tank wall of the first oil storage tank 25.

Through establish the third ring muscle 54 protruding at the diapire of lower carriage 50, third ring muscle 54 stretches into in the first oil storage tank 25 for the outflow route of grease is more tortuous, further prolongs the outflow route of grease and increases the grease and flow the degree of difficulty, promotes and prevents getting rid of oily effect, because third ring muscle 54 and the cell wall clearance fit of first oil storage tank 25, effectively avoids causing direct wearing and tearing between third ring muscle 54 and the lower extreme cover 20, reduces frictional noise.

Preferably, as shown in FIG. 4, the third annular rib 54 has a width W3 and the first oil reservoir 25 has a width W1, satisfying 1/3.ltoreq.W3/W1.ltoreq.2/3.

The width of the first annular rib 23 and the width of the first oil storage tank 25 meet 1/3 less than or equal to W3/W1 less than or equal to 2/3, the third annular rib can be provided with enough width, grease needs to spread along the width direction of the bottom end of the third annular rib, a good blocking effect is achieved on the grease, meanwhile, enough distance is reserved between the third annular rib and the side wall of the first oil storage tank 25 to avoid collision between the planetary wheel assembly 40 and the wall of the first oil storage tank 25 of the lower end cover 20 after rotating and deflecting, and therefore noise is reduced and grease is effectively prevented from being thrown out. If W3/W1 is smaller than 1/3, the width of the third ring rib may be smaller, the blocking effect on the grease may be poor, and if W3/W1 is larger than 2/3, the risk of the planet assembly 40 being deflected during rotation to collide with the first oil reservoir 25 may be increased.

More preferably, the side wall of the lower end cap 20 is inwardly protruded to form a stepped portion, and the side surface of the stepped portion is extended to the bottom wall of the lower end cap 20, and a second oil storage groove 26 is formed between the outer side wall of the second ring rib 24 and the inner side surface of the stepped portion.

The step part is arranged on the side wall of the lower end cover 20, the step surface and the side surface of the step part prolong the outflow path of grease on the inner side of the lower end cover 20, the difficulty of grease outflow is further increased, the side surface of the step part and the second annular rib 24 form the second oil storage groove 26, the temporary storage effect of the grease is realized, the grease outflow is further prevented, therefore, the risk of throwing the oil of the reduction gearbox 102 is further reduced, the food materials are prevented from being polluted, the use is cleaner and sanitary, the trouble of cleaning after the grease outflow is omitted, and the use is more worry-saving.

Preferably, as shown in fig. 4, the width of the second oil reservoir 26 is larger than the width of the first oil reservoir 25;

through setting the width of second oil storage tank 26 to be greater than the width of first oil storage tank 25, consequently, if carelessly outwards flow to the grease of bottom end cover 20 lateral wall department, at the in-process of flowing, can accomodate temporary storage by second oil storage tank 26 at the in-process of flowing through second oil storage tank 26, and then the grease that exists temporarily in second oil storage tank 26 continues to play the lubrication action to the rotation of planet wheel subassembly 40, realizes the maximize utilization of grease, also still further avoids the grease to flow to first oil storage tank 25, promotes and prevents throwing away the oily effect.

Preferably, the raised height of the first annular rib 23 is greater than the raised height of the second annular rib 24.

Through the protruding height that is greater than second ring muscle 24 with first ring muscle 23, to the grease that still needs to flow outwards that is not blockked by second ring muscle 24, because the protruding height of first ring muscle 23 becomes high and is effectively blockked in the outside of first ring muscle 23, avoid grease to be close to output hole 21 department further, therefore, the protruding height of first ring muscle 23 is greater than the protruding height of second ring muscle 24, on the route that the grease flows to output hole 21, the degree of difficulty of outflow increases gradually, realize good blocking effect, effectively solve the problem that the grease throwed away from output hole 21.

Since there is no need to support the planetary assembly by the first and second annular ribs in this embodiment, it is more preferable that both the first and second annular ribs 23, 24 are in clearance fit with the bottom wall of the lower bracket 50.

The first annular rib 23 and the second annular rib 24 are in clearance fit with the bottom wall of the lower support 50, so that the friction area between the lower support 50 and the lower end cover 20 can be reduced on the basis of blocking grease from flowing out of the output hole 21, and noise generated in the operation process of the planetary gear assembly 40 is reduced compared with the condition that the first annular rib 23 and the second annular rib 24 are in contact with the lower support 50.

Indeed, in another preferred embodiment, one of the first and second annular ribs may be in contact with the lower support for support.

Preferably, as shown in FIG. 4, the protrusion height H1 of the first annular rib 23 satisfies 1 mm.ltoreq.H2.ltoreq.3 mm.

If the height of the protrusion of the first annular rib 23 is too small, which is smaller than 1mm, the blocking effect on the grease is poor, and the risk of the grease flowing to the output hole 21 is high. Because the first annular rib 23 is close to the output hole 21 and the output shaft 51 relative to the second annular rib 24, and the output shaft 51 rotates at a high speed in the working state, if the protruding height of the first annular rib 23 is larger than 3mm, the first annular rib 23 may collide and interfere with the first annular rib 23 in the running process of the planetary gear assembly 40 if the deflection occurs, so that the first annular rib 23 is worn or noise is caused, therefore, the protruding height H1 of the first annular rib 23 satisfies that H1 is less than or equal to 1mm and less than or equal to 3mm, and the abrasion of the first annular rib 23 and the planetary gear assembly 40 can be avoided on the basis of solving the oil throwing problem, and the noise is reduced.

Preferably, as shown in fig. 4, the outer bottom wall of the lower end cover 20 is convexly provided with a surrounding rib 27, the inner side of the surrounding rib 27 forms the output hole 21, and the first annular rib 23 is far away from the axle center of the output hole 21 than the surrounding rib.

Through setting up and enclosing the muscle and forming output hole 21, do benefit to the length of extension output hole 21, further extension grease is from the outflow route of output hole 21 outflow, avoid the grease to throw away, first ring muscle 23 compares and encloses the muscle and keep away from the axle center of output hole 21, consequently, first fender muscle carries out the backstop before grease flow direction output hole 21, consequently, keep off the muscle through the second, first fender muscle, enclose the muscle and combine together to form the multichannel obstacle that blocks the grease outflow, effectively reduce reducing reduction gearbox 102 and throw away the oil risk, reduce the loss of grease, prevent that the food from being polluted, use cleaner and health, the clearance after omitting the grease outflow is troublesome, use more worry-saving.

Fourth embodiment

As shown in fig. 8, the present embodiment provides a food processor, which includes a stirring cup 103, a stirring member 104 provided in the stirring cup 103, a cup cover 105 provided on the stirring cup 103, and the main unit 100 of the third embodiment, wherein the main unit 100 is provided above the cup cover 105, and the top end of the stirring member 104 is in transmission connection with the output shaft 51 of the lower bracket 50.

As shown in fig. 8, when the food processor according to the present embodiment is used, the stirring member 104 is first placed in the stirring cup 103, the bottom end of the stirring member 104 is engaged with the positioning shaft 106, after the food is placed in the stirring cup, the cup cover 105 and the stirring cup 103 are covered, at this time, the top of the stirring member 104 is threaded out of the cup cover 105, and then the main unit is placed above the cup cover, so that the output shaft 51 of the lower bracket is engaged with the top end of the stirring member 104 in a plugging manner. Preferably, a coupling may be provided inside the output shaft of the lower bracket to cooperate with the top end of the stirring member 104.

In the food processing machine provided by the utility model, in the food processing process, the host 100 is adopted, so that the effect of multiple blocking of grease in the host 100 is realized, the flowing path of the grease on the supporting surface of the lower end cover 20, which flows to the output hole 21, is more tortuous, and the difficulty of flowing the grease to the output hole 21 is increased; the grease flowing down is temporarily stored, so that the grease is prevented from flowing out to the output hole 21 further, grease loss is avoided, the grease is fully utilized, abrasion of the planetary gear assembly 40 is reduced, and friction noise is reduced; on the basis of realizing reducing component abrasion and noise, the risk of throwing oil of the reduction gearbox 102 is effectively reduced, the loss of grease is reduced, the food materials are prevented from being polluted by the thrown grease, the use is cleaner and sanitary, the trouble of cleaning after the grease flows out is avoided, and the use is more worry-saving.

It should be noted that the reduction gearbox provided by the utility model can be a primary reduction gearbox or a secondary reduction gearbox. When the device is applied to a food processor, different rotation speed outputs can be realized, and the device can be matched with different stirring pieces to perform functions of high-speed meat mincing or low-speed flour mixing and the like.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The description as it relates to "first", "second", etc. in the present utility model is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

The technical solution protected by the present utility model is not limited to the above embodiments, and it should be noted that the combination of the technical solution of any one embodiment with the technical solution of other one or more embodiments is within the scope of the present utility model. While the utility model has been described in detail in the general context and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims (10)

1. The utility model provides a host computer for food processor, includes motor and reducing gear box, the reducing gear box is including enclosing upper end cover and the lower extreme cap of installation cavity, be equipped with upper bracket, lower carriage and set up the planet wheel subassembly between upper bracket and lower carriage in the installation cavity, the diapire of lower extreme cap is equipped with the output hole, the lower carriage be equipped with from the output shaft that the output hole stretches out, its characterized in that, the inboard of lower extreme cap is equipped with ring gear and inward convex supporting part, the supporting part is located the below of ring gear, the planet wheel subassembly includes relative the radial outside convex planet wheel of lower carriage, the periphery of planet wheel with the ring gear meshing, the bottom support of planet wheel is in on the supporting part, the diapire of lower extreme cap with the diapire separation setting of lower carriage.

2. A mainframe for a food processor as defined in claim 1, wherein the planet gear is provided with external teeth and the ring gear is provided with internal teeth, the external teeth meshing with and being in clearance fit with the internal teeth.

3. The main frame for a food processor according to claim 1, wherein the side wall of the lower end cover is inwardly bent to form a stepped portion, the stepped portion having an upwardly facing stepped surface, the stepped surface constituting the supporting portion;

or, the inner side wall of the lower end cover is convexly provided with a supporting plate, and the supporting plate forms the supporting part.

4. The main machine for a food processing machine of claim 1 wherein said lower bracket is clearance fit with a side of said support.

5. The main machine for a food processing machine according to claim 1, wherein the bottom wall of the lower end cover includes a body shielding the lower bracket and a ring rib protruding from the body toward the lower bracket, and a gap is provided between the ring rib and the bottom wall of the lower bracket.

6. The main frame of claim 5, wherein the ring rib comprises a first ring rib surrounding the output hole and a second ring rib surrounding the outer side of the first ring rib, a first oil storage tank is formed between the outer side wall of the first ring rib and the inner side wall of the second ring rib, and a second oil storage tank is formed between the outer side wall of the second ring rib and the inner side wall of the lower end cover.

7. The host machine of claim 1, further comprising a fixing post fixedly connected to the upper bracket, wherein the lower bracket is provided with a fixing groove, and wherein the fixing post is inserted into the fixing groove in an interference manner so that the upper bracket is fixedly connected to the lower bracket.

8. The main frame for a food processor of claim 7, wherein the fixing post is integrally protruded on the bottom surface of the upper bracket;

or, the upper bracket is provided with a fixing hole, and the fixing column is inserted in the fixing hole in an interference manner.

9. The main frame for a food processor according to claim 7, wherein the upper bracket and the lower bracket are respectively provided with an upper through hole and a lower through hole corresponding to the ends of the fixing posts, the inner bottom wall of the lower end cover is convexly provided with a first annular rib, a gap is arranged between the first annular rib and the bottom wall of the lower bracket, and the first annular rib is blocked between the lower through hole and the output hole along the radial direction.

10. A food processor characterized by: the stirring device comprises a stirring cup, a stirring piece arranged in the stirring cup, a cup cover covered on the stirring cup and a host machine according to any one of claims 1-9, wherein the host machine is arranged above the cup cover, and the top end of the stirring piece is in transmission connection with an output shaft of the lower bracket.