CN216020634U

CN216020634U - Food preparation machine with stable operation

Info

Publication number: CN216020634U
Application number: CN202122385997.5U
Authority: CN
Inventors: 朱泽春; 尚珅; 金剑; 任听听
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-03-15
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a food processor with stable operation, which comprises a host, wherein the host comprises a shell, a motor positioned in the shell and a reduction gearbox structure connected with the motor, the reduction gearbox structure comprises a first-stage reduction assembly and a second-stage reduction assembly, a fixing support is arranged on the reduction gearbox structure, and the reduction gearbox structure is fixedly arranged in the shell through the fixing support. After the reduction gearbox structure is fixed in the casing through the fixing support, when the host machine operates, collision or deflection between the reduction gearbox structure and the casing is obviously reduced, and noise is reduced; on the other hand, the reduction of deflection and play also leads to the reduction of two-stage abrasion, and the effective noise reduction is realized.

Description

Food preparation machine with stable operation

Technical Field

The utility model relates to the technical field of domestic appliances, in particular to a food processor with stable operation.

Background

The existing early food processing machines are mostly used in one machine, namely, only a first-stage speed reducing mechanism is arranged in a main machine. Compared with a two-stage speed reducing mechanism, the one-stage speed reducing mechanism has the advantages of smaller height, lower gravity center and lighter weight. Therefore, for the food processor only comprising the primary speed reducing mechanism, the fixing requirement of the primary speed reducing mechanism and the machine shell of the main machine is lower.

However, as the demand for one-machine-multiple-use food processors has become more and more intense, a one-machine-multiple-use food processor including a two-stage speed reduction mechanism has been developed. However, the arrangement of the secondary speed reducing mechanism greatly increases the overall height of the main machine, increases the weight of the main machine, improves the gravity center of the main machine, reduces the coaxiality of the first-stage planetary gear set and the second-stage planetary gear set of the secondary speed reducing mechanism, and is very easy to be unstable, and generate vibration and noise in the operation process of the main machine. In addition, the existing food processor with multiple functions does not consider how to fixedly install the secondary speed reducing mechanism in the machine shell so as to ensure the stability of two-stage output and reduce the noise and the vibration of the main machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a food processing machine with stable operation, which solves the problems of unstable two-stage output of a main machine of the food processing machine with a two-stage speed reducing mechanism and high noise and serious vibration or deflection caused by the operation of the two-stage speed reducing mechanism in a machine shell by arranging a fixing structure of the two-stage speed reducing mechanism and the machine shell.

In order to achieve the purpose, the utility model provides a food processor with stable operation, which comprises a host machine, wherein the host machine comprises a machine shell, a motor positioned in the machine shell and a reduction gearbox structure connected with the motor, the reduction gearbox structure comprises a first-stage reduction component and a second-stage reduction component, a fixing support is arranged on the reduction gearbox structure, and the reduction gearbox structure is fixedly arranged in the machine shell through the fixing support.

The two-stage speed reduction assembly in the reduction gearbox structure mainly causes noise and large vibration: on one hand, the two-stage abrasion is serious due to the low rotating speed and large torque of the second-stage speed reduction assembly; on the other hand, the reduction gearbox structure is not fixed in the casing and is unreliable in fixation, so that the reduction gearbox structure collides with the casing to generate noise during operation, and the reduction gearbox structure deflects to cause gravity center deviation, so that the whole host machine is easy to shake and the two-stage output is unstable. Therefore, in order to not damage the structures of the first-stage speed reduction assembly and the second-stage speed reduction assembly and realize the reliable fixation of the two-stage speed reduction assembly on the casing, the speed reduction box structure is provided with a fixed support and is fixedly arranged in the casing through the fixed support. After the reduction gearbox structure is fixed in the casing through the fixed support, the collision or deflection between the reduction gearbox structure and the casing is obviously reduced and the noise is reduced when the host machine operates. The reduction of the deflection of the reduction gearbox structure means that the risks of radial deflection and axial movement of the two-stage reduction assemblies are obviously reduced, on one hand, the coaxiality of the two-stage reduction assemblies is improved, and the stability of two-stage output of the host is ensured; on the other hand, the reduction of deflection and play also leads to the reduction of two-stage abrasion, and the effective noise reduction is realized.

Preferably, the fixed support is provided with an inserting part, the inner bottom surface of the casing is convexly provided with a first positioning part for limiting the radial degree of freedom of the fixed support, and the first positioning part and the inserting part are mutually inserted to realize the radial positioning of the reduction gearbox structure.

Because the height and the gravity center of the main machine provided with the two-stage speed reduction assembly are obviously higher than those of the main machine provided with only one-stage speed reduction assembly, the speed reduction box structure and the motor are easier to radially deflect in the casing. Through setting up first location portion and grafting portion and pegging graft each other in order to realize right the radial positioning of reducing gear box structure, the mode of pegging graft each other both easy to assemble can realize again that the good radial of reducing gear box structure is spacing.

Preferably, the casing includes a base, the first positioning portion is a plurality of first fixing columns which are arranged on the base and extend upwards, the inserting portion is a mounting hole which penetrates through the fixing support axially, and the first fixing columns penetrate through the mounting hole and are fastened with the fixing member to fix the reduction gearbox structure on the base.

In order to further simplify the installation relationship between the fixed support and the base of the casing and reduce the installation cost, the first positioning parts are a plurality of first fixed columns which are arranged on the base and extend upwards, and the inserting parts are installation holes which axially penetrate through the fixed support. Because this kind of arrangement, first fixed column is static, and the mounting hole that the reducing gear box structure passes through on the fixed bolster from last down pass first fixed column, the mounting hole can not shelter from first fixed column, has made things convenient for the location when installing. The first fixing column penetrates through the mounting hole to realize radial limiting of the first fixing column on the fixing support, so that radial limiting of the reduction gearbox structure is indirectly realized. On the basis of realizing radial spacing to the reducing gear box structure through mutual grafting of first fixed column and mounting hole, still set up first fixed column and pass the mounting hole and fasten with the mounting with the reducing gear box structure is fixed in on the base. The fixing piece and the first fixing column are fastened equivalently to axially fix the fixing support, and the reduction gearbox structure is indirectly fixed on the machine shell, so that radial and axial multidirectional fixing of the reduction gearbox structure is realized, stability of two-stage output of the reduction gearbox structure is guaranteed, and working noise of the reduction gearbox structure is reduced.

Preferably, a second fixing column extending upwards is arranged on the bottom cover of the casing, a vacancy avoiding position is arranged on the fixing support and avoids the installation hole, and the second fixing column is inserted into the vacancy avoiding position to realize circumferential rotation positioning of the fixing support.

In order to limit the circumferential rotation of the fixed support and further realize displaying the circumferential rotation of the reduction gearbox structure and influence the stability of the speed reduction output of the reduction gearbox structure, the bottom cover of the casing is further provided with a second fixed column which extends upwards, the fixed support is provided with a space avoiding position, and the second fixed column is inserted into the space avoiding position to realize the circumferential rotation positioning of the gear ring, so that the static state of the gear ring is ensured, the two-stage planetary wheel set rotates, and the precision of the two-stage output is improved.

Preferably, the casing includes upper cover and base, the internal surface of upper cover is equipped with the screw post to the downward protrusion, be equipped with the second fixed column that upwards extends on the bottom of casing, the second fixed column passes the vacancy of keeping away of fixed bolster with the screw post is pegged graft fixedly, the fixed bolster centre gripping is between the lateral wall of upper cover and the lateral wall of base.

The key of stable fixation of the reduction gearbox structure and the casing is to ensure that the casing is also reliably fixed, and the second fixing column is arranged to penetrate through the vacancy avoiding position of the fixing support to be fixedly connected with the screw column in an inserting mode so as to realize reliable fixation of the upper cover and the base. Because be equipped with on the fixed bolster and keep away the vacancy, the fixed bolster can not be interfered with the fixed of screw post to the second fixed column, can restrict the circumference rotation to the fixed bolster, can also realize the reliable fixed of upper cover and base. On this basis, still set up the fixed bolster centre gripping between the lateral wall of upper cover and the lateral wall of base to the realization is fixed to the centre gripping of fixed bolster, and then guarantees that the reducing gear box structure is fixed in the casing, guarantees the stability of two-stage output.

Preferably, the first level speed reduction subassembly includes first order planetary gear set and encloses to locate the first ring gear in the first order planetary gear set outside, the second level speed reduction subassembly includes the second level planetary gear set and encloses to locate the second ring gear in the second level planetary gear set outside, first ring gear and second ring gear fixed connection form whole ring gear, the fixed bolster is located on the whole ring gear.

The integral gear ring plays a role in radial limiting and coaxiality guaranteeing of the two-stage planetary gear set, and the function of righting and protecting the innermost layer is achieved. Therefore, the core point for righting and protecting the two-stage planetary gear set is also found by arranging the fixed support on the integral gear ring. After the fixing support and the casing are fixed, the fixing support is arranged on the integral gear ring which is directly contacted with the two-stage planetary gear set, so that the centralizing protection of the two-stage planetary gear set is further improved, the coaxiality of the two-stage planetary gear set is improved, the deflection or the play of the two-stage planetary gear set is prevented, and the stability of two-stage output is ensured.

Preferably, the fixed support is a plate-shaped structure which is outwards protruded at the joint of the first gear ring and the second gear ring along the radial direction of the integral gear ring, and the first gear ring, the second gear ring and the fixed support are integrally formed; or the fixed support and one of the first gear ring and the second gear ring are integrally formed, and the other gear ring is connected with the fixed support through a fixing piece.

The fixed support is arranged at the joint of the first gear ring and the second gear ring, so that the center of the fixed support is closer to the gravity center of the gear ring, the deflection of the gear ring is reduced, and the first gear ring and the second gear ring are distributed evenly.

Meanwhile, the first gear ring, the second gear ring and the fixed support are integrally formed, so that on one hand, the radial limiting of the gear ring on the two-stage planetary gear set is favorably ensured, and the coaxiality and the output stability of the two-stage planetary gear set are ensured; on the other hand, the fixed support is integrally formed on the gear ring, so that the processing technology is simplified, and when the fixed support is fixedly arranged with the base of the shell, the limit of the gear ring and the two-stage planetary gear set in the gear ring is more reliable. Of course, also can set up one of them integrated into one piece in fixed bolster and first ring gear and the second ring gear, another ring gear with the fixed bolster passes through the mounting and connects, makes first ring gear and second ring gear can adopt different materials like this, can adopt the metal material that the wearability is high, intensity is high to the second ring gear that adapts to the high moment of torsion of low rotational speed, and just can adopt the plastic material that the cost was handed over the end to the first ring gear that adapts to the low moment of torsion of high rotational speed, realizes giving medicine to the opposite sign, optimization cost. Meanwhile, reliable radial limiting of the planetary wheel set in each stage of gear ring can be realized, and the coaxiality and the output stability of the two stages of planetary wheel sets are ensured.

Preferably, the first-stage speed reduction assembly comprises a first-stage planetary gear set and a first gear ring arranged around the outer side of the first-stage planetary gear set, an upper cover plate is arranged above the first gear ring, and the fixed support is an upper cover plate; or the fixed bracket is fixedly connected to the upper cover plate.

Along the axial height of the reduction gearbox structure, the higher the horizontal height of the reduction gearbox structure is, the higher the gravity center is, the more easily the reduction gearbox structure deflects. The upper cover plate above the first gear ring is the highest position of the reduction gearbox structure, and the position point is fixed with the shell, namely the reduction gearbox structure is fixed in the whole height direction. Therefore, set up the fixed bolster into the upper cover plate in this scheme for the upper cover plate realizes that a board is multi-purpose, simplify the assembly scheme, can realize the fixed of upper cover plate and first ring gear, can realize the fixed point of fixed bolster and casing again and at the upper cover plate height department, whole direction of height's is fixed to the reducing gear box structure, thereby effectively promote the reliability that reducing gear box structure and casing are fixed, reduce the noise that reducing gear box structure and casing collided and the noise that the two-stage wearing and tearing produced, guarantee the stability of two-stage output. Of course, the fixing support can also be fixedly connected to the upper cover plate, namely the fixing support is fixedly connected with the upper cover plate and then fixed with the casing through the fixing support, so that the fixing support can not only enhance the strength of the upper cover plate and does not influence the fixation of the upper cover plate and the second gear ring, but also can realize the reliable fixation of the whole height of the reduction gearbox structure and the casing.

Preferably, the second-stage speed reduction assembly comprises a second-stage planetary gear set and a second gear ring surrounding the outer side of the second-stage planetary gear set, a lower cover plate is arranged below the second gear ring, and the fixed support is a lower cover plate; or the fixed bracket is fixedly connected with the lower cover plate.

The existing main machine of the food processor with the two-stage speed reduction assembly is characterized in that a lower cover plate of the existing main machine is arranged below a second gear ring and is fixedly connected with the second gear ring so as to realize axial limitation on a second-stage planetary gear set, and the stability of a second output end is ensured. In this scheme, in order to further simplify the assembly scheme, directly set up the fixed bolster into lower cover plate for lower cover plate one board is multi-purpose, can realize the fixed of lower cover plate and second ring gear and can realize with the fixed of casing again, and is fixed in the casing with whole reducing gear box structure. Of course, the fixing support can also be fixedly connected to the lower cover plate, namely the fixing support is fixedly connected with the lower cover plate and then fixed with the casing through the fixing support, so that the fixing support can not only enhance the strength of the lower cover plate and does not influence the fixation of the lower cover plate and the second gear ring, but also can realize the fixation of the reduction gearbox structure and the casing.

Preferably, a second positioning part for limiting the degree of freedom of the motor is further arranged on the inner side wall of the machine shell, and the second positioning part and the inner side wall of the machine shell are integrally formed.

On the basis that the reduction box structure is fixed on the shell, in order to further ensure the stability of two-stage output, the stable connection between the output end of the host and the first-stage reduction assembly is ensured. Therefore, a second positioning part for limiting the degree of freedom of the motor is further arranged on the inner side wall of the shell, and the stability of radial deflection or axial shaking of the motor is reduced through the second positioning part. Meanwhile, the second positioning portion and the inner side wall of the casing are integrally formed, the possibility that the second positioning portion and the inner side wall of the casing do not deflect or shake is guaranteed, the risk that the second positioning portion can effectively reduce radial deflection or axial shaking during operation of the motor is guaranteed, and therefore the output end of the host and the first-stage speed reduction assembly are stably connected, and the two-stage output stability of the host is guaranteed.

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 not to limit the utility model. In the drawings:

FIG. 1 is a schematic diagram of a food processor according to one embodiment of the present invention;

FIG. 2 is a schematic structural view of a main body and a lid of a food processor according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of area A indicated in FIG. 2;

FIG. 4 is an exploded view of a mainframe in accordance with one embodiment of the present invention;

FIG. 5 is an exploded view of the motor and reduction gearbox arrangement in accordance with one embodiment of the present invention;

FIG. 6 is an exploded view of the motor and reduction gearbox structure and the base of the enclosure in accordance with one embodiment of the present invention;

FIG. 7 is a top view of a ring gear with a fixed bracket mounted thereto in accordance with one embodiment of the present invention;

fig. 8 is an exploded view of a motor and reduction gearbox arrangement according to another embodiment of the present invention.

Description of reference numerals:

1-a host; 11-a housing; 111-upper cover; 1111-screw column; 1112-a second positioning portion; 112-a base; 1121-lower ring rib; 1122-first fixed column; 1123-second fixed column; 12-a motor; 2-processing the cup assembly; 21-a cup cover; 22-cup body; 23-a work piece; 3-a reduction gearbox structure; 31-first stage planetary gear set; 311-first stage planet wheel upper support; 312-first stage planets; 313-first stage planet wheel lower support; 314-first stage sun gear; 32-a second stage planetary gear set; 321-a second-stage planet wheel upper support; 322-second stage planets; 323-second stage planet wheel lower support; 324-a second stage sun gear; 33-a gear ring; 331-a first ring gear; 332-a second ring gear; 333-fixed support; 3331-mounting holes; 3332-avoidance of vacancies; 34-a lower cover plate; 341-upper ring rib; 35-upper cover plate; 4-a support part; 5-a shock pad; 6-inner partition board; 61-bearing.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with 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 invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

As shown in fig. 1 to 8, the utility model provides a food processor with stable operation, which comprises a processing cup assembly 1 and a main machine 1 matched with the processing cup assembly, wherein the processing cup assembly 2 comprises a cup body 21, a cup cover 21 covering the open end of the cup body 21 and a processing piece 23 positioned in the cup body 21. The bottom of the main machine 1 is matched with the cup cover 21, the main machine 1 comprises two output ends with different rotating speeds, and the upper end of the workpiece 23 penetrates through the cup cover 21 to be connected with one of the output ends of the main machine to realize transmission. When the workpiece 23 realizes a slow processing function, such as dough mixing, egg breaking, etc., the workpiece 23 is a dough mixing knife or an egg breaking tray, and the workpiece 23 is connected to the output end of the low-speed main machine; when the workpiece 23 performs a high-speed processing function such as meat grinding, crushing, etc., the workpiece 23 is a meat grinding cutter or a crushing cutter, and the workpiece 23 is connected to a high-speed main machine output terminal.

Specifically, as shown in fig. 1 to 4, the main machine 1 includes a housing 11, a motor 12 located in the housing 11, and a reduction gearbox structure 3 connected to the motor, the reduction gearbox structure includes a first-stage speed reduction assembly and a second-stage speed reduction assembly, the first-stage speed reduction assembly includes a first-stage planetary gear set 31 and a first gear ring 331 disposed on the outer side of the first-stage planetary gear set 31, and the second-stage speed reduction assembly includes a second-stage planetary gear set and a second gear ring 332 disposed on the outer side of the second-stage planetary gear set 32. The first ring gear 331 and the second ring gear 332 constitute the integral ring gear 33. The first-stage planetary gear set 31 and the second-stage planetary gear set 32 constitute the entire planetary gear set. The first-stage planetary gear set 31 comprises a first-stage sun gear 314 connected with the output end of the motor 12, a first-stage planetary gear 312 meshed with the first-stage sun gear 314, a first-stage planetary gear lower support 313 located below the first-stage planetary gear 312, and a high-speed output end located below the first-stage planetary gear lower support 313. The second-stage planetary gear set comprises a second-stage sun gear 324 connected below the first-stage planetary gear lower support 313, a second-stage planetary gear 322 meshed with the second-stage sun gear 324, and a second-stage planetary gear lower support 323 positioned below the second-stage planetary gear 322, and a low-speed output end is arranged below the second-stage planetary gear lower support 323. The casing 11 further includes a base 112 supporting and wrapping the reduction gearbox structure 3, and an upper cover 111 fixed to the base 112. The reduction gear box structure 3 further includes an upper cover plate 35 covering the upper opening of the first gear ring 331, and a lower cover plate 34 located below the second gear ring 332.

In the solution of the present invention, as shown in fig. 1 to 7, a fixing support 333 is provided on the reduction gearbox structure 3, and the reduction gearbox structure 3 is fixedly installed in the casing 11 through the fixing support 333.

The two-stage speed reduction assembly in the reduction gearbox structure 3 mainly causes noise and large vibration: on one hand, the two-stage abrasion is serious due to the low rotating speed and large torque of the second-stage speed reduction assembly; on the other hand, the reduction gearbox structure 3 is not fixed in the casing 11 and is unreliable in fixation, so that the reduction gearbox structure 3 collides with the casing 11 to generate noise during operation, and the reduction gearbox structure 3 deflects to cause gravity center deviation, so that the host 1 is easy to shake integrally and unstable in two-stage output. Therefore, in order to not damage the structures of the first-stage reduction assembly and the second-stage reduction assembly and realize the reliable fixation of the two-stage reduction assembly on the casing, the reduction gearbox structure 3 is provided with a fixing bracket 333, and the reduction gearbox structure 3 is fixedly arranged in the casing 11 through the fixing bracket 333. After the reduction gearbox structure 3 is fixed in the casing 11 through the fixing support 333, the collision or deflection between the reduction gearbox structure 3 and the casing 11 is obviously reduced and the noise is reduced when the host 1 operates. The reduction of the deflection of the reduction gearbox structure 3 means that the risks of radial deflection and axial movement of the two-stage reduction assemblies are obviously reduced, on one hand, the coaxiality of the two-stage reduction assemblies is improved, and the stability of two-stage output of the main machine 1 is ensured; on the other hand, the reduction of deflection and play also leads to the reduction of two-stage abrasion, and the effective noise reduction is realized.

The reduction gearbox structure 3 is fixedly arranged in the casing 11 through the fixing bracket 333 in various ways, and the following 2 preferred embodiments are provided in the application:

embodiment 1: the fixed support 333 is provided with an inserting part, the inner bottom surface of the housing 11 is convexly provided with a first positioning part for limiting the radial degree of freedom of the fixed support 111, and the first positioning part and the inserting part are inserted with each other to realize the radial positioning of the reduction gearbox structure 3.

Because the height and the gravity center of the main machine 1 provided with the two-stage speed reduction assembly are obviously higher than those of the main machine provided with only one-stage speed reduction assembly, the speed reduction box structure 3 and the motor 12 are easier to radially deflect in the shell 11. Under this embodiment, peg graft each other in order to realize right through setting up first locating part and grafting portion the radial positioning of reducing gear box structure 3, the mode of pegging graft each other both easy to assemble, can realize again that it is radial spacing to the good of reducing gear box structure 3.

Embodiment 2: as shown in fig. 4, the casing 11 includes an upper cover 111 and a base 112, a screw post 1111 is disposed on an inner surface of the upper cover 111 and protrudes downward, a second fixing post 1123 extending upward is disposed on the bottom cover 112 of the casing 11, the second fixing post 1123 passes through a space-avoiding position of the fixing bracket 333 and is inserted into and fixed with the screw post 1111, and the fixing bracket 333 is clamped between a sidewall of the upper cover 111 and a sidewall of the base 112.

In the embodiment 2, the key point of the reduction gearbox structure 3 and the machine shell 11 is to ensure that the fixation of the machine shell 11 is reliable. Therefore, in the present embodiment, the second fixing post is inserted 1123 through the clearance 3332 of the fixing bracket 333 and fixed with the screw post 1111, so as to reliably fix the upper cover 111 and the base 112. Because the fixing bracket 333 is provided with the clearance 3332, the fixing of the second fixing column 1123 and the screw column 1111 does not interfere with the fixing bracket 333, the circumferential rotation of the fixing bracket 333 can be limited, and the reliable fixing of the upper cover 111 and the base 112 can be realized. On the basis, the fixing support 333 is clamped between the side wall of the upper cover 111 and the side wall of the base 112, so that the fixing support 333 is clamped and fixed, the reduction gearbox structure 3 is further ensured to be fixed in the machine shell 11, and the stability of two-stage output is ensured.

Further, as shown in fig. 4 and 6, the casing 11 includes a base 112, the first positioning portion is a plurality of first fixing posts 1122 disposed on the base 112 and extending upward, the inserting portion is a mounting hole 3331 axially penetrating through the fixing bracket 333, and the first fixing posts 1122 penetrate through the mounting hole 3331 and are fastened to the fixing member to fix the reduction gear box structure 3 on the base 112.

Specifically, in order to further simplify the installation relationship between the fixing bracket 333 and the base 112 of the housing 11 and reduce the installation cost, the first positioning portion is configured as a plurality of first fixing posts 1122 disposed on the base 112 and extending upward, and the inserting portion is an installation hole 3331 axially penetrating through the fixing bracket 333. Due to the arrangement mode, the first fixing column 1122 is static, the reduction gearbox structure 3 penetrates through the first fixing column 1122 from top to bottom through the mounting hole 3331 in the fixing support 333, the first fixing column 1122 cannot be shielded by the mounting hole 3331, and positioning during mounting is facilitated. The first fixing column 1122 penetrates through the mounting hole 3331 to realize radial limiting of the first fixing column 1122 on the fixing support 333, so that radial limiting of the reduction gearbox structure 3 is indirectly realized. On the basis that radial limiting of the reduction gearbox structure 3 is achieved through mutual insertion of the first fixing column 1122 and the mounting hole 3331, the first fixing column 1122 is further arranged to penetrate through the mounting hole 3331 to be fastened with a fixing piece so as to fix the reduction gearbox structure 3 on the base 112. The fastening of the fixing member and the first fixing column 1122 is equivalent to the axial fixing of the fixing support 333, and the reduction gearbox structure 3 is indirectly fixed on the casing 11, so that the radial and axial multidirectional fixing of the reduction gearbox structure 3 is realized, the stability of two-stage output of the reduction gearbox structure 3 is ensured, and the working noise of the reduction gearbox structure is reduced.

Preferably, the fixing member is a screw, and the screw passes through the mounting hole 3331 from top to bottom and is inserted into the first fixing column 1122, so as to fasten the fixing bracket 333 to the base 112, and further, fix the entire reduction gear box structure 3 to the base 112. In order to further improve the stability of the connection of the fixing bracket and the base and the vibration between the fixing bracket and the base, a flexible shock absorption pad 5 is further arranged on the mounting hole 3331.

It can be understood that, in another embodiment of the present application, the first positioning portion may also be a plurality of first fixing posts 1122 disposed on the base 112 and extending upward, the inserting portion is a mounting hole 3331 axially penetrating through the fixing bracket 333, and the first fixing posts 1122 penetrate through the mounting hole 3331 to achieve radial limitation of the fixing bracket 333 by the first fixing posts 1122, thereby indirectly achieving radial limitation of the reduction gearbox structure 3. On this basis, the inner side wall of the casing 11 is provided with a limiting member for limiting the axial movement of the reduction gearbox structure, and the limiting member abuts against the upper surface of the fixed bracket, or the limiting member abuts against the upper surface of the upper cover plate 35 of the reduction gearbox structure 3.

Further, in a preferred embodiment of the present invention, as shown in fig. 6 and 7, a second fixing column 1123 extending upward is disposed on the bottom cover 112 of the casing 11, a clearance 3332 is disposed on the fixing bracket 333, the clearance 3332 is disposed to avoid the mounting hole 3331, and the second fixing column 1123 is inserted into the clearance 3332 to realize circumferential rotation positioning of the ring gear 333.

In order to limit the circumferential rotation of the fixing support 333 and influence the stability of the speed reduction output of the reduction gearbox structure 3, the bottom cover 112 of the casing 11 is further provided with a second fixing column 1123 extending upwards, the fixing support 333 is provided with a clearance position 3332, and the second fixing column 1123 is inserted into the clearance position 3332 to realize the circumferential rotation positioning of the fixing support 333, so that the static state of the gear ring 33 is guaranteed, but the rotation of the two-stage planetary gear set is realized, and the accuracy of the two-stage output is improved.

Meanwhile, a screw post 1111 installed in cooperation with the second fixing post 1123 is disposed on the upper cover 111 of the casing 11. The fixed installation of the bottom cover 112 and the upper cover 111 is realized by connecting the second fixing column 1123 with the screw column 1111 through the clearance 3332 from bottom to top.

Since the position of the fixing bracket 333 affects the reliability of fixing the reduction mechanism to the housing 11, the following preferred embodiments are provided for the fixing bracket of the present application:

embodiment 1: as shown in fig. 5, the first-stage speed reduction assembly provided in this embodiment includes a first-stage planetary gear set 31 and a first ring gear 331 surrounding the first-stage planetary gear set 31, the second-stage speed reduction assembly includes a second-stage planetary gear set 32 and a second ring gear 332 surrounding the second-stage planetary gear set 32, the first ring gear 331 and the second ring gear 332 are fixedly connected to form an integral ring gear 33, and a fixed carrier 333 is provided on the integral ring gear 33.

The integral gear ring 33 plays a role in radial limitation and coaxiality guarantee of the two-stage planetary gear set, and the function of righting and protecting the innermost layer is achieved. Thus, by locating the fixed carrier 333 on the ring gear 33, the core point of the two-stage planetary gear set centralizing guard is also found. After the fixing support 333 is fixed to the casing 11, the fixing support 333 is arranged on the integral gear ring 33 directly contacting with the two-stage planetary gear set, so that the centering protection of the two-stage planetary gear set is further improved, the coaxiality of the two-stage planetary gear set is improved, the deflection or the play of the two-stage planetary gear set is prevented, and the stability of two-stage output is ensured.

Further, a fixing bracket 333 is provided to protrude outward in the radial direction of the integrated ring gear 33 at the joint of the first ring gear 331 and the second ring gear 332, and the first ring gear 331, the second ring gear 331, and the fixing bracket 333 are integrally formed. By providing the fixed bracket at the junction of the first ring gear 331 and the second ring gear 332, the center of the fixed bracket 333 is brought closer to the center of gravity of the ring gear 33, so that the yawing of the ring gear 33 is reduced, and the first ring gear 331 and the second ring gear 332 are distributed evenly. Meanwhile, the first gear ring 331, the second gear ring 332 and the fixing bracket 333 are integrally formed. On one hand, the radial limiting of the gear ring 33 on the two-stage planetary wheel set is facilitated, and the coaxiality and the output stability of the gear ring are ensured; on the other hand, the fixing bracket 333 is integrally formed on the ring gear 33, which not only simplifies the processing technology, but also ensures that the limit of the ring gear 33 and the two-stage planetary gear set in the ring gear 33 is more reliable when the fixing bracket 333 is fixedly arranged with the base 112 of the casing 11. Of course, the first gear ring 331 and the second gear ring 332 may be fixed together by screws or ultrasonic welding.

It will be appreciated that a fixed bracket 333 may be provided integrally with one of the first gear ring 331 and the second gear ring 332, the other gear ring being connected to the fixed bracket by a fixing member. That is, the fixing bracket 333 is integrally formed with the first ring gear 331, and the second ring gear 332 is locked to the fixing bracket by a screw; alternatively, the fixed bracket 333 and the second ring gear 332 are integrally formed, and the first ring gear 331 is fixed to the fixed bracket 333 by means of screws, ultrasonic welding, or the like. However, it is not limited to screws or ultrasonic welding. Make first ring gear 331 and second ring gear 332 can adopt different materials like this, can adopt the high metal material of high, the intensity of the degree of wear height to the second ring gear 332 that adapts to the high moment of torsion of low rotational speed, and just can adopt the plastic material of cost trade end to the first ring gear 331 that adapts to the low moment of torsion of high rotational speed, realize the corresponding medicine of giving medicine to the opponent, optimize the cost. Meanwhile, reliable radial limiting of the planetary wheel set in each stage of gear ring can be realized, and the coaxiality and the output stability of the two stages of planetary wheel sets are ensured.

Embodiment 2: as shown in fig. 8, the first-stage speed reduction assembly includes a first-stage planetary gear set 31 and a first ring gear 331 surrounding the first-stage planetary gear set 31, an upper cover plate 35 is disposed above the first ring gear 331, and a fixed support 333 is disposed as the upper cover plate 35.

Along the axial height of the reduction gearbox structure 3, the higher the horizontal height is, the higher the gravity center is, the more easily the deflection is. The upper cover plate 35 above the first gear ring 331 is the highest position of the reduction gearbox structure 3, and fixing the position point with the casing is equivalent to fixing the reduction gearbox structure 3 in the whole height direction. Therefore, in the scheme, the fixing support 333 is set as the upper cover plate 35, so that the upper cover plate 35 is multipurpose, the assembly scheme is simplified, the fixing of the upper cover plate 35 and the first gear ring 331 can be realized, the fixing point of the fixing support 333 and the machine shell 11 can be realized at the height position of the upper cover plate 35, the whole height direction of the reduction gearbox structure 3 is fixed, the fixing reliability of the reduction gearbox structure 3 and the machine shell 11 is effectively improved, the noise generated by collision between the reduction gearbox structure 3 and the machine shell 11 and the noise generated by two-stage abrasion are reduced, and the stability of two-stage output is ensured.

It can be understood that the fixing bracket 333 may also be fixedly connected to the upper cover plate 35, that is, the fixing bracket 333 is fixed to the upper cover plate 35 through the fixing bracket 33 after being fixedly connected to the upper cover plate 35, so that the fixing bracket 333 not only can enhance the strength of the upper cover plate and does not affect the fixation of the upper cover plate 35 to the second ring gear 332, but also can reliably fix the overall height of the reduction gearbox structure 3 to the housing 11.

Embodiment 3: the difference between the

above embodiments

1 and 2 is that the second stage speed reduction assembly includes a second stage planetary gear set 32 and a second ring gear 332 surrounding the second stage planetary gear set 32, a lower cover plate 34 is disposed below the second ring gear 332, and the fixed carrier 333 is the lower cover plate 34.

The existing main machine of the food processor with the two-stage speed reduction assembly is characterized in that a lower cover plate of the existing main machine is arranged below a second gear ring and is fixedly connected with the second gear ring so as to realize axial limitation on a second-stage planetary gear set, and the stability of a second output end is ensured. In this embodiment, in order to further simplify the assembly scheme, the fixing bracket 333 is directly configured as the lower cover plate 34, so that the lower cover plate 34 is multipurpose, and the fixing of the lower cover plate 34 and the second gear ring 332 as well as the fixing of the whole reduction gearbox structure 3 to the casing 11 can be realized.

It can be understood that the fixing bracket 333 may also be fixedly connected to the lower cover plate 34, that is, the fixing bracket 333 is fixed to the casing 11 through the fixing bracket 333 after being fixedly connected to the lower cover plate 34, so that the fixing bracket 333 not only can enhance the strength of the lower cover plate 34 and does not affect the fixing of the lower cover plate 34 to the second ring gear 332, but also can fix the reduction gearbox structure 3 to the casing 11. However, the fixing reliability of the fixing bracket 333 provided to the lower cover 34 is slightly lower than that of the fixing bracket 333 provided to the upper cover 35.

In some preferred embodiments of the present invention, as shown in fig. 1, a second positioning portion 1112 for limiting the degree of freedom of the motor 12 is further disposed on an inner side wall of the housing 11, and the second positioning portion 1112 is integrally formed with the inner side wall of the housing 11. Specifically, the second positioning portion 1112 is integrally formed on the upper cover 111.

On the basis that the reduction box structure 3 is fixed on the casing 11, in order to further ensure the stability of the two-stage output, firstly, the output end of the main machine 1 is stably connected with the first-stage speed reduction assembly. For this reason, a second positioning portion 1112 for limiting the degree of freedom of the motor 12 is further disposed on the inner side wall of the housing 11, and the stability of radial runout or axial shaking of the motor 12 is reduced by the second positioning portion 112. Meanwhile, the second positioning portion 1112 and the inner side wall of the casing 11 are integrally formed, so that the possibility that the second positioning portion 1112 and the inner side wall of the casing 11 do not have deflection or shake is ensured, and the second positioning portion 112 can effectively reduce the risk of radial deflection or axial shake when the motor 12 operates, so that the connection stability of the output end of the main unit 1 and the first-stage speed reduction assembly and the stability of two-stage output of the main unit 1 are ensured.

In some preferred embodiments of the present invention, as shown in fig. 2, 4 and 7, an inner partition plate 6 extending radially inward is provided in the ring gear 33, the inner partition plate 6 divides the inner cavity of the ring gear 33 into a first cavity accommodating the first stage planetary gear set 31, and a second cavity accommodating the second stage planetary gear set 32, the first stage planetary gear set 31 is installed in the first cavity from top to bottom, and the second stage planetary gear set 32 is installed in the second cavity from bottom to top.

By providing the inner partition 6 extending radially inward in the ring gear 33, the inner partition 6 partitions the inner cavity of the ring gear 33 into a first cavity accommodating the first-stage planetary gear set 31 and a second cavity accommodating the second-stage planetary gear set 32, so that the first-stage planetary gear set 31 and the second-stage planetary gear set 32 at different speeds are not worn, thereby reducing the noise of operation. In addition, no wear occurs, and there is no relative friction between the lower surface of the first-stage planetary gear set 31 and the upper surface of the second-stage planetary gear set 32, thereby reducing the error of the output speed. Simultaneously, still through setting up first order planetary gear set 31 is from last down installing in first cavity, and second level planetary gear set 32 is from up installing in the second cavity down, compares like this that the two-stage planetary gear set is all from up the mode of installing down, and the degree of depth of installation is shallower, more convenient, also can not interfere between two-stage planetary gear sets. Preferably, the radial width of the first cavity is smaller than that of the second cavity, so that the whole gear ring is in a shape with a small top and a big bottom, and the stability is higher.

Further, as shown in fig. 7, in order to further improve the coaxiality of the two-stage planetary gear set, an annular bearing 61 is further disposed in the through hole of the inner partition plate 6, and the annular bearing 61 is used for radially limiting the output end of the first-stage planetary gear set 31, so as to ensure that the second-stage sun gear 324 is accurately inserted into the middle of the second-stage planetary gear 322 and meshed with the second-stage planetary gear 322. The preferred inner partition 6, first ring gear 331, and second ring gear 332 are integrally formed. More preferably, the inner partition 6, the first gear ring 331, the second gear ring 332, and the fixing bracket 333 are integrally formed.

It is understood that the inner partition plate 6 may be eliminated on the basis of the integral molding of the inner partition plate 6, the first ring gear 331 and the second ring gear 332, and the first-stage planetary gear set 31 and the second-stage planetary gear set 32 share the ring gear 33, but the form of the ring gear 33 is not limited. This approach, while improving the coaxiality of the two-stage planetary gear set, is somewhat inferior to the previous embodiment in preventing axial play and interference of the two-stage planetary gear set.

It will also be appreciated that the inner partition 6 may also be provided on one of the first and second ring gears 331, 332, the remaining ring gears being fixedly connected to the inner partition 6. The coaxiality of the scheme is slightly lower than that of the scheme that the inner partition plate 6, the first gear ring 331 and the second gear ring 332 are integrally formed, but the rotating speed of the first-stage planetary gear set is high, and the first-stage planetary gear set 31 and the second-stage planetary gear set 32 can be made of different materials because the second-stage planetary gear set 32 does not have special temperature requirements; of course, the first gear ring 331 and the second gear ring 332 may be made of different materials.

Further, in some preferred embodiments of the present application, as shown in fig. 2 to 4 and fig. 6, the reduction gearbox structure 3 further includes a bottom cover plate 34 located at the lower end of the gear ring 33, a support portion 4 for limiting the inclination of the bottom cover plate 34 is disposed on the base 112 of the casing 11, the support portion 4 is located below the bottom cover plate 34, the support portion 4 is disposed away from the center of the bottom cover plate 34, an upper ring rib 341 is disposed on the lower surface of the bottom cover plate 34, and a lower ring rib 1121 which is mutually inserted and matched with the upper ring rib 341 is disposed on the inner bottom surface of the base 112 of the casing 11.

In order to prevent the deflection of the reduction gearbox structure 3 from affecting the stability of output, a support part 4 for limiting the inclination of the bottom cover plate 34 is also arranged on the base 112, and the support part 4 is positioned below the bottom cover plate 34. When the two-stage planetary gear set deflects to drive the gear ring 33 to deflect, the bottom cover plate 34 connected with the gear ring 33 also deflects. At this time, the supporting portion 4 located below the bottom cover plate 34 abuts against the bottom cover plate 34 and assists the bottom cover plate 34 to return to the vertical direction, so that the ring gear 33 and the two-stage planetary gear set are driven to return to the normal direction. Meanwhile, in order to improve the aligning effect of the supporting portion 4, the supporting portion 4 is further disposed away from the center of the bottom cover plate 34. Thus, the moment arm of the support portion 4 increases and the force required to straighten the ring gear 33 by the support portion 4 decreases. Not only can effectively improve the righting effect, but also can avoid causing the abrasion of the bottom cover plate 34 to the supporting part 4.

In order to further reduce the radial runout of the reduction gearbox structure 3, an upper ring rib 341 provided on the lower surface of the bottom cover plate 34 and a lower ring rib 1121 provided on the inner bottom surface of the base 112 are inserted into each other to suppress the radial runout of the ring gear 33. And the ring gear 33 is enclosed outside the two-stage planetary gear set, so that the radial deflection of the two-stage planetary gear set is indirectly inhibited, and the coaxiality of the two-stage planetary gear set and the stability of each stage of output are further ensured. The stability is enhanced, so that the abrasion of the two-stage planetary gear set, the collision between the two-stage planetary gear set and the gear ring or the collision between the gear ring and the machine shell 11 are greatly reduced, and the noise generated by the work of the main machine is also reduced.

It is understood that, under another embodiment of the present application, the supporting portion 4 for limiting the inclination of the bottom cover plate 34 may be provided only on the base 112 of the casing 11, the supporting portion 4 is located below the bottom cover plate 34, and the supporting portion 4 is located away from the center of the bottom cover plate 34. In another embodiment of the present application, the upper ring rib 341 may be disposed only on the lower surface of the bottom cover 34, and the lower ring rib 1121, which is inserted into and engaged with the upper ring rib 341, is disposed on the inner bottom surface of the base 112 of the housing 11.

The technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the combination of the technical solution of any one embodiment and the technical solution of one or more other embodiments is within the protection scope of the present invention. Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims

1. The food processing machine is characterized in that the reduction gearbox structure is provided with a fixed support, and the reduction gearbox structure is fixedly arranged in the machine shell through the fixed support.

2. The food processor of claim 1, wherein the fixed bracket is provided with an insertion portion, the inner bottom surface of the housing is convexly provided with a first positioning portion for limiting the radial degree of freedom of the fixed bracket, and the first positioning portion and the insertion portion are inserted into each other to radially position the reduction gearbox structure.

3. The food processor of claim 2, wherein the housing includes a base, the first positioning portions are first fixing posts extending upwardly from the base, the insertion portion is a mounting hole axially passing through the fixing bracket, and the first fixing posts pass through the mounting hole and are fastened to the fixing member to fix the reduction box structure to the base.

4. The food processor as claimed in claim 3, wherein the bottom cover of the housing has a second fixing post extending upward, the fixing bracket has a space avoiding portion disposed to avoid the mounting hole, and the second fixing post is inserted into the space avoiding portion to realize circumferential rotation positioning of the fixing bracket.

5. The food processor as claimed in claim 1, wherein the casing includes an upper cover and a base, a screw post is protruded from an inner surface of the upper cover, a second fixing post extending upward is provided on a bottom cover of the casing, the second fixing post passes through the space of the fixing bracket and is inserted into and fixed with the screw post, and the fixing bracket is clamped between a sidewall of the upper cover and a sidewall of the base.

6. The food processor of claim 1, wherein the first reduction assembly comprises a first planetary gear set and a first gear ring surrounding the first planetary gear set, the second reduction assembly comprises a second planetary gear set and a second gear ring surrounding the second planetary gear set, the first gear ring and the second gear ring are fixedly connected to form an integral gear ring, and the fixed bracket is disposed on the integral gear ring.

7. The food processor with stable operation as claimed in claim 5, wherein the fixed bracket is a plate-shaped structure which is arranged at the joint of the first gear ring and the second gear ring and protrudes outwards along the radial direction of the integral gear ring, and the first gear ring, the second gear ring and the fixed bracket are integrally formed; or the fixed support and one of the first gear ring and the second gear ring are integrally formed, and the other gear ring is connected with the fixed support through a fixing piece.

8. The food processor capable of stably running according to claim 1, wherein the first-stage speed reduction assembly comprises a first-stage planetary gear set and a first gear ring arranged around the outer side of the first-stage planetary gear set, an upper cover plate is arranged above the first gear ring, and the fixed support is the upper cover plate; or the fixed bracket is fixedly connected to the upper cover plate.

9. The food processor with stable operation as claimed in claim 1, wherein the second-stage speed reduction assembly comprises a second-stage planetary gear set and a second gear ring surrounding the second-stage planetary gear set, a lower cover plate is arranged below the second gear ring, and the fixed support is the lower cover plate; or the fixed bracket is fixedly connected with the lower cover plate.

10. The food processor of any one of claims 1 to 9, wherein the inner side wall of the housing is further provided with a second positioning portion for limiting the degree of freedom of the motor, and the second positioning portion is integrally formed with the inner side wall of the housing.