Food processer capable of being accurately assembled

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses an accurately-assembled food processer which comprises a main machine, the main machine comprises a machine shell and a bottom cover, the machine shell and the bottom cover are enclosed to form an installation cavity provided with a motor assembly, and the motor assembly comprises a motor, a reduction gearbox upper cover, a gear assembly and an output shaft. A containing cavity for containing a gear assembly is defined by the reduction gearbox upper cover and the bottom cover, the reduction gearbox upper cover comprises a cover body and a gear ring integrally connected with the cover body and meshed with the periphery of the gear assembly, and the bottom cover comprises an output hole, a supporting part located on the periphery of the output hole and used for supporting the gear ring, a limiting piece protruding relative to the supporting part and located on the periphery of the gear ring and a fixing piece. The limiting piece is closer to the gear ring than the fixing piece, and the reduction gearbox upper cover further comprises a limiting matching piece matched with the limiting piece in a radial limiting mode and a fixing matching piece fixedly connected with the fixing piece. Accurate alignment of the upper cover and the bottom cover of the reduction gearbox is achieved, the coaxiality and meshing precision of the gear ring and the gear assembly are improved, and transmission noise is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of kitchen appliances, and particularly relates to an assembly-accurate food processor. BACKGROUND

[0002] The patent with the application number 202420433319.2 discloses a power assembly applied to a shredding machine, a gear containing cavity is formed by the bottom cover of the main machine and the power assembly, the gear assembly is arranged in the gear containing cavity, and the driving motor is fixed on the power assembly, so that the driving motor and the gear assembly are directly assembled on the bottom cover of the main machine after being integrated on the power assembly (or the upper cover of the speed reducer), the lower cover of the speed reducer is saved, the power assembly structure and the assembly process are effectively simplified, and the production efficiency is improved.

[0003] Generally, the gear assembly includes a gear assembly arranged outside the output shaft of the driving motor, a planetary support, the gear assembly is a sun gear and a planetary gear in meshing transmission with the sun gear, and correspondingly, a gear ring in meshing transmission with the planetary gear is arranged on the upper cover of the speed reducer. However, in the prior art, the upper cover of the speed reducer is directly assembled on the bottom cover of the main machine, and the upper cover of the speed reducer is fastened and buckled with the bottom cover body only through the fastener arranged outside the gear containing cavity. Therefore, during the assembly process, the gear ring part of the upper cover of the speed reducer is blindly inserted into the groove of the main machine bottom cover, and the assembler cannot intuitively and accurately align; in addition, the thickness of the gear ring is usually thin, the upper and lower butt joint positions of the bottom cover body supporting the gear ring are relatively narrow, and after the main machine bottom cover and the gear ring are limited by the thin end face of the gear ring and the bottom cover support, the main machine bottom cover and the upper cover of the speed reducer are directly fixed by using the fastener, so that the alignment accuracy of the upper cover of the speed reducer and the main machine bottom cover is poor, the installation position of the gear ring is deviated after the fastener is locked, the coaxiality between the gear ring and the gear assembly is poor, and the gear meshing degree is poor. When high-torque or high-load operation is performed, such as mixing flour or shredding micro-frozen food, the transmission noise problem is caused by the transmission jamming phenomenon of the gear relative to the swing. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of assembly-accurate food processor, under the premise of realizing the structure of simplified motor assembly by the direct installation of the upper cover of speed reducer and bottom cover, solve the problem of main machine transmission noise caused by the poor installation alignment accuracy of the upper cover of speed reducer and bottom cover.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a kind of assembly precision's food processor, including host computer, the host computer includes the casing of being provided with open mouth and the bottom cover of being fixed in the open mouth end of casing, the casing and the bottom cover are enclosed and form the installation cavity of installing motor assembly, the motor assembly includes motor, the reduction gearbox upper cover of being fixedly connected with motor, gear assembly, the output shaft of being transmission cooperation with gear assembly, the reduction gearbox upper cover and the bottom cover are enclosed and form the accommodation cavity of accommodating the gear assembly, the reduction gearbox upper cover includes cover body, and the gear ring of being integrally connected with cover body and being engaged in the outer periphery of gear assembly, the bottom cover includes the output hole for the output shaft to extend, the support portion located the outer periphery of the output hole and supporting gear ring, limiting piece and fixed part that are protruding relative to support portion and located the outer periphery of gear ring, the limiting piece is set close to gear ring compared with the fixed part, the reduction gearbox upper cover further includes the limiting cooperation piece of being radially limited cooperation with the limiting piece and the fixed cooperation piece of being fixedly connected with the fixed part.

[0007] The utility model provides a kind of assembly precision's food processor, through the reduction gearbox upper cover and the bottom cover are enclosed and form the accommodation cavity of accommodating the gear assembly, save additional arrangement reduction gearbox lower cover, simplify motor assembly part quantity, realize the compact of host computer structure, reduce host computer volume, realize host computer miniaturization.On this basis, the reduction gearbox upper cover includes cover body and the gear ring of being integrally connected with cover body and being engaged in the outer periphery of gear assembly, therefore, gear ring and reduction gearbox upper cover are combined into one, further simplify host computer structure, also reduce the error that gear ring exists relative to reduction gearbox upper cover split installation, improve assembly precision;Further, the bottom cover includes the support portion supporting gear ring, limiting piece and fixed part that are protruding relative to support portion and located the outer periphery of gear ring, through the limiting piece is set close to gear ring compared with the fixed part, limiting piece compared with fixed part has good guiding and righting effect to gear ring, in the process of reduction gearbox upper cover from top to bottom and bottom cover cooperation, if gear ring has the tendency of inclination and has deflection when, limiting piece close to gear ring can be prior to fixed part to gear ring and straighten, make it with bottom cover centring, through the radial limiting cooperation of limiting cooperation piece and limiting piece, realize the preinstallation of reduction gearbox upper cover and bottom cover, realize the accurate alignment of reduction gearbox upper cover and bottom cover, improve the coaxiality and meshing precision of gear ring and gear assembly, reduce transmission noise.After preinstallation of reduction gearbox upper cover and bottom cover, bottom cover supports gear ring through support portion, realize the axial location of gear ring and reduction gearbox upper cover, fixed part and fixed cooperation piece fixed connection realize the reliable assembly of reduction gearbox upper cover and bottom cover, connection is reliable, therefore, limiting piece and fixed part are respectively cooperated with limiting cooperation piece and fixed cooperation piece, realize the assembly precision of motor assembly high, transmission is reliable, transmission noise is small.

[0008] In a preferred embodiment, the support part is an annular surrounding plate which is in abutment with the gear ring, and the limiting part is connected to the outer side of the annular surrounding plate and protrudes from the end surface of the annular surrounding plate.

[0009] By setting the support part as an annular surrounding plate which is in abutment with the gear ring, the abutment position of the gear ring is determined directly according to the position of the annular surrounding plate. Meanwhile, the limiting part is connected to the outer side of the annular surrounding plate and protrudes from the end surface of the annular surrounding plate. When the gear ring deviates during the abutment process with the annular surrounding plate, the limiting part can right the gear ring to improve the coaxiality and meshing accuracy of the gear ring and the gear assembly, and reduce the transmission noise.

[0010] More preferably, the end surface of one of the annular surrounding plate and the gear ring is provided with a plug, and the end surface of the other is provided with a matching part which is in plug-in cooperation with the plug.

[0011] By setting the plug and the matching part which is in plug-in cooperation with the plug, the annular surrounding plate and the gear ring are not only axially supported and matched through the end surfaces, but also radially limited by the plug-in cooperation of the plug and the matching part. During the assembly of the upper cover and the bottom cover of the reduction gearbox, the accurate pre-installation position of the upper cover of the reduction gearbox is realized by the guidance and limitation of the limiting part to the gear ring. Then, the stable pre-installation position of the upper cover of the reduction gearbox is realized due to the radial limitation of the plug and the matching part. Finally, the reliable and stable connection of the upper cover and the bottom cover of the reduction gearbox is realized by the connection of the fixing part and the fixing matching part.

[0012] In a preferred embodiment, the bottom cover comprises a sunken groove which is formed by arching outward, the output hole is located at the groove bottom wall of the sunken groove, the side wall top end surface of the sunken groove supports the gear ring, and the support part is the side wall of the sunken groove.

[0013] Since the output shaft of the reduction gearbox is the output shaft of the planetary support in the gear assembly, the output shaft protrudes downward and corresponds to the output hole. Therefore, by setting the sunken groove which is formed by arching outward on the bottom cover, the sunken groove can accommodate the output shaft, avoid the output shaft protruding outward from the bottom cover, and protect the output shaft. Meanwhile, the groove wall of the sunken groove also forms a support part to axially support the gear ring, thereby improving the coaxiality and reliable connection of the gear ring and the bottom cover on the basis of protecting the output shaft.

[0014] More preferably, the inner surface and the outer surface of the side wall of the sunken groove are circular, the end surface of the side wall of the sunken groove matches the shape of the end surface of the gear ring, the food processor further comprises a cup cover which supports the main machine, the cup cover is provided with a mounting groove, the sunken groove is inserted into the mounting groove, and the side wall of the sunken groove is radially limited by the inner wall of the mounting groove.

[0015] By matching the end face of the side wall of the sink with the end face shape of the gear ring, there is a more obvious alignment guide effect during installation, and the end face of the sink wall fully and stably supports the gear ring, thereby improving the installation stability between the upper cover and the bottom cover of the reduction box; by inserting the sink into the installation slot of the cup cover, good alignment and cooperation of the main machine and the cup cover are achieved, and user operation is convenient.

[0016] In a preferred embodiment, the bottom cover further comprises an inner ring rib surrounding the edge of the output hole and an outer ring rib surrounding the inner ring rib, the support part is located at the outer periphery of the outer ring rib, and a first oil storage groove is formed between the inner ring rib and the outer ring rib.

[0017] By providing the inner ring rib and the outer ring rib surrounding the inner ring rib on the bottom cover, the support part is located at the outer periphery of the outer ring rib, and if the grease on the inner side of the gear ring flows down from the support part, it will be blocked layer by layer by the outer ring rib and the inner ring rib, and will not leak from the output hole, thereby increasing the difficulty of grease leakage. Moreover, the first oil storage groove is formed between the inner ring rib and the outer ring rib, and the grease will be temporarily stored in the first oil storage groove to avoid leakage from the output hole. In addition, since the inner ring rib surrounds the edge of the output hole, the strength of the bottom cover at the edge of the output hole is strengthened to avoid breakage of the bottom cover at the output hole.

[0018] More preferably, a second oil storage groove is formed between the outer side wall of the outer ring rib and the inner side wall of the support part, and the groove width of the second oil storage groove is greater than the groove width of the first oil storage groove.

[0019] By making the groove width of the second oil storage groove greater than the groove width of the first oil storage groove, most of the grease that flows down after passing through the support part is temporarily stored in the second oil storage groove, thereby further reducing the amount of grease flowing to the first oil storage groove, and further reducing the possibility of grease flowing out of the output hole.

[0020] More preferably, the gear assembly comprises a planet carrier provided with the output shaft, and an oil blocking rib is protruded on the end face of the planet carrier, and the oil blocking rib extends into the first oil storage groove.

[0021] By providing the oil blocking rib on the end face of the planet carrier, the oil blocking rib extends into the first oil storage groove to realize plug-in cooperation, thereby prolonging the path of grease leakage and preventing grease leakage.

[0022] In a preferred embodiment, the limiting part comprises a plug column, the limiting cooperation part comprises a plug slot for plug-in cooperation of the plug column, the plug column is a cylindrical column, or a cross-shaped column with a cross-shaped cross section, or a wire clamping column for clamping wires, or a screw column provided with an internal thread and locked with the plug slot by a screw.

[0023] By including the limiting column as a plug column and the limiting fitting part as a plug slot, precise alignment between the gear ring and the bottom cover can be achieved with only one plug column, thus simplifying the structure of the limiting part and the main machine structure, and of course, the alignment precision can be further improved with multiple plug columns. The plug column is in the form of a cylinder, which is simple in structure and easy to form. The plug column is in the form of a cross-shaped column, which is more intuitive and easy to identify, thus simplifying the alignment difficulty. The plug column is in the form of a wire clamping column, which can be reused, thus achieving compact structure and simplification. The plug column is provided with internal threads to achieve fixed connection with the plug slot, thus achieving reliable connection between the gear ring and the bottom cover on the basis of alignment guidance.

[0024] In a preferred embodiment, the limiting fitting part is the outer sidewall of the gear ring, the bottom cover is provided with a groove for mounting a safety switch, and the limiting part includes a first limiting rib arranged around the gear ring and a groove wall of the groove.

[0025] The first limiting rib and the groove wall are matched to achieve direct radial guidance and limiting of the gear ring, which is more direct and labor-saving in assembly, and the groove is used to mount the safety switch, thus achieving functional reuse and compact structure of the main machine.

[0026] In a preferred embodiment, the side of the fixing part is integrally provided with a protruding rib, and the protruding rib is limited to the outer periphery of the outer sidewall of the gear ring.

[0027] The protruding rib is integrally provided on the side of the fixing part and is limited to the outer periphery of the outer sidewall of the gear ring to achieve direct limiting of the outer sidewall of the gear ring, which also plays a role in guiding installation. The protruding rib also plays a role in strengthening the structure of the fixing part, thus making the connection between the fixing part and the fixing fitting part more reliable. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate certain illustrative embodiments of the present application and are used to explain the present application, but do not limit the present application. In the drawings:

[0029] Figure 1 It is a sectional view of the main machine in an embodiment of the present application;

[0030] Figure 2 It is a schematic view of the cooperation between the upper cover and the bottom cover of the reduction gearbox in an embodiment of the present application;

[0031] Figure 3 It is a schematic view of the structure of the upper cover of the reduction gearbox in an embodiment of the present application;

[0032] Figure 4This is a schematic diagram of the bottom cover in one embodiment of the present invention;

[0033] Figure 5 for Figure 1 A magnified view of part A in the middle;

[0034] Figure 6 for Figure 1 A magnified view of part B in the middle section;

[0035] Figure 7 This is an exploded view of the host computer in one embodiment of the present invention.

[0036] Figure 8 This is a cross-sectional view of the host in another embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of the bottom cover in another embodiment of the present invention.

[0038] List of components and reference numerals:

[0039] 10. Housing; 20. Motor assembly; 21. Motor; 22. Gearbox cover; 221. Cover; 222. Gear ring; 2221. Insert rib; 223. Limiting fitting; 224. Fixing fitting; 23. Gear assembly; 231. Sun gear; 232. Planet gear; 233. Planetary support; 2331. Oil baffle; 24. Output shaft; 30. Bottom cover; 31. Output hole; 32. Support part; 321. Annular surrounding plate; 3211. Fitting part; 33. Limiting part; 34. Fixing part; 35. Sink; 36. Inner ring rib; 37. Outer ring rib; 38. First oil reservoir; 39. Second oil reservoir; 40. First screw; 50. Shock absorber; 60. Second screw. Detailed Implementation

[0040] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0042] In addition, in the description of the utility model, it is understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0043] In the utility model, unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected, or can be communicated; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0044] In the utility model, unless otherwise expressly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through an intermediate medium. In the description of the specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The utility model provides a kind of assembly precision food processor in one embodiment, as shown in Figure 1 、 2 It includes host computer, host computer includes the casing 10 being provided with open mouth and the bottom cover 30 being fixed in the open mouth end of casing 10, casing 10 and bottom cover 30 are enclosed to form the installation cavity being installed with motor assembly 20, motor assembly 20 includes motor 21, the reduction gearbox upper cover 22 being fixedly connected with motor 21, gear assembly 23, the output shaft 24 being transmission cooperation with gear assembly 23, reduction gearbox upper cover 22 and bottom cover 30 are enclosed to form the accommodation cavity accommodating gear assembly 23, reduction gearbox upper cover 22 includes cover body 221, the gear ring 222 being integrally connected with cover body 221 and engaged in the outer periphery of gear assembly 23, in combination Figure 1 、 2As shown in the drawings, the bottom cover 30 includes an output hole 31 for the output shaft 24 to extend out, a supporting part 32 located at the outer periphery of the output hole 31 and supporting the gear ring 222, a limiting part 33 protruding relative to the supporting part 32 and located at the outer periphery of the gear ring 222, and a fixing part 34, the limiting part 33 is arranged closer to the gear ring 222 than the fixing part 34, and the upper cover of the reduction gearbox 22 further includes a limiting fitting part 223 in radial limiting cooperation with the limiting part 33 and a fixed fitting part 224 fixedly connected with the fixing part 34.

[0046] The food processor with high assembly precision provided by the utility model has the advantages that the accommodating cavity accommodating the gear assembly 23 is formed by the upper cover of the reduction gearbox 22 and the bottom cover 30, the additional lower cover of the reduction gearbox is omitted, the number of parts of the motor assembly 20 is simplified, the structure of the host computer is compact, the volume of the host computer is reduced, and the host computer is miniaturized. Figure 3 As shown in the drawings, the upper cover of the reduction gearbox 22 includes a cover body 221 and a gear ring 222 integrally connected with the cover body 221 and engaged at the outer periphery of the gear assembly 23, therefore, the gear ring 222 and the upper cover of the reduction gearbox 22 are combined into one, the structure of the host computer is further simplified, the error caused by the separate installation of the gear ring 222 relative to the upper cover of the reduction gearbox 22 is reduced, and the assembly precision is improved; furthermore, in combination with Figure 2 、 3 As shown in the drawings, the bottom cover 30 includes a supporting part 32 supporting the gear ring 222, a limiting part 33 protruding relative to the supporting part 32 and located at the outer periphery of the gear ring 222, and a fixing part 34, the limiting part 33 is arranged closer to the gear ring 222 than the fixing part 34, and the limiting part 33 has a good guiding and righting effect on the gear ring 222 than the fixing part 34, as shown in the drawings. Figure 2 As shown in the drawings, in the process of cooperating the upper cover of the reduction gearbox 22 with the bottom cover 30 from top to bottom, if the gear ring 222 has a tilting and swinging trend, the limiting part 33 close to the gear ring 222 can first correct the gear ring 222 than the fixing part 34, so that the gear ring 222 is centered with the bottom cover 30, the radial limiting cooperation between the limiting fitting part 223 and the limiting part 33 realizes the pre-installation of the upper cover of the reduction gearbox 22 and the bottom cover 30, the precise alignment of the upper cover of the reduction gearbox 22 and the bottom cover 30 is realized, the coaxiality and the meshing precision of the gear ring 222 and the gear assembly 23 are improved, and the transmission noise is reduced. After the pre-installation of the upper cover of the reduction gearbox 22 and the bottom cover 30, the bottom cover 30 supports the gear ring 222 through the supporting part 32, realizes the axial limiting of the gear ring 222 and the upper cover of the reduction gearbox 22, the fixing part 34 and the fixed fitting part 224 are fixedly connected to realize the reliable assembly of the upper cover of the reduction gearbox 22 and the bottom cover 30, and the connection is reliable, therefore, the limiting part 33 and the fixing part 34 are respectively cooperated with the limiting fitting part 223 and the fixed fitting part 224, the high assembly precision of the motor assembly 20 is realized, the transmission is reliable, and the transmission noise is small.

[0047] It should be noted that the specific form of the supporting part is not limited in the utility model, for example:

[0048] In a preferred embodiment, as shown in Figures 1-7 The support part 32 is an annular wall 321 which is in abutment with the ring gear 222, as shown in Figure 4 The limiting part 33 is connected to the outer side of the annular wall 321 and protrudes from the end face of the annular wall 321.

[0049] As shown in Figure 5 More preferably, one of the annular wall 321 and the ring gear 222 is provided with a plug-in rib, and the other is provided with a matching part which is in plug-in matching with the plug-in rib.

[0050] As shown in Figure 5 The end face of the ring gear 222 is provided with a plug-in rib 2221, and the end face of the annular wall 321 is provided with a matching part 3211, wherein the matching part 3211 is a matching rib which abuts the outer side of the plug-in rib 2221. Of course, the matching rib can also abut the inner side of the plug-in rib. Moreover, the matching part 3211 can also be a matching groove into which the plug-in rib 2221 is inserted.

[0051] In this embodiment, the support part 32 is an annular wall 321 which is in abutment with the ring gear 222, so that the abutment position of the ring gear 222 is determined directly according to the position of the annular wall 321. Meanwhile, the limiting part 33 is connected to the outer side of the annular wall 321 and protrudes from the end face of the annular wall 321. When the ring gear 222 deviates during the abutment process with the annular wall 321, the limiting part 33 can right the ring gear 222, so as to improve the coaxiality and meshing precision of the ring gear 222 and the gear assembly 23, and reduce the transmission noise.

[0052] By providing the plug-in rib and the matching part which is in plug-in matching with the plug-in rib, the annular wall 321 and the ring gear 222 are not only axially supported and matched through the end faces, but also radially limited by the plug-in matching plug-in rib and the matching part. During the assembly of the upper cover 22 and the bottom cover 30 of the reduction gearbox, the guiding and limiting of the ring gear 222 by the limiting part 33 can ensure the accuracy of the pre-installation position of the upper cover 22 of the reduction gearbox. Due to the radial limitation of the plug-in rib and the matching part, the pre-installation position of the upper cover 22 of the reduction gearbox is stable. Finally, the reliable and stable connection of the upper cover 22 of the reduction gearbox and the bottom cover 30 is achieved by the connection of the fixing part 34 and the fixing matching part 224.

[0053] In another preferred embodiment, as shown in Figure 8 , 9 The bottom cover 30 comprises a sunken groove 35 which is formed by arching outward, the output hole 31 is located at the groove bottom wall of the sunken groove 35, the side wall top end face of the sunken groove 35 supports the ring gear 222, and the support part 32 is the side wall of the sunken groove 35.

[0054] Optionally, in the embodiment, the side wall of the sink 35 is outwardly folded at the top end to form a flange, and the limiting member 33 is protruded above the flange to limit the gear ring. Preferably, the fixing member is fixed on the flange or the inner side wall of the bottom cover.

[0055] Since the output shaft 24 of the reduction gearbox is arranged in the output shaft 24 of the planetary support 233 in the gear assembly 23, the output shaft 24 protrudes downward and corresponds to the output hole 31. Therefore, by arranging the outwardly arched sink 35 on the bottom cover 30, the sink 35 can accommodate the output shaft 24, avoid the output shaft 24 protruding outwardly from the bottom cover 30, protect the output shaft 24, and at the same time, the sink wall of the sink 35 also forms a support part 32 to axially support the gear ring 222, thereby improving the coaxiality and reliable connection of the gear ring 222 and the bottom cover 30 on the basis of protecting the output shaft 24.

[0056] More preferably, in the embodiment, the inner surface and the outer surface of the side wall of the sink 35 are circular, the end surface of the side wall of the sink 35 matches the shape of the end surface of the gear ring 222, and the food processor further comprises a cup cover (not shown) supporting the main machine, the cup cover is provided with a mounting groove, the sink 35 is inserted into the mounting groove, and the outer side wall of the sink 35 is radially limited by the inner side wall of the mounting groove.

[0057] Of course, in other embodiments, the outer surface of the sink 35 can be polygonal, and correspondingly, the mounting groove of the cup cover is a polygonal groove, which not only realizes the radial limitation of the main machine and the cup cover, but also realizes the rotation-stopping limitation of the main machine and the cup cover. The inner surface of the side wall of the sink 35 can correspond to the outer surface or be circular.

[0058] By matching the end surface of the side wall of the sink 35 with the shape of the end surface of the gear ring 222, there is a more obvious alignment guiding effect during installation, and the end surface of the sink wall of the sink 35 has a comprehensive stable support for the gear ring 222, thereby improving the installation stability between the upper cover 22 of the reduction gearbox and the bottom cover 30; by inserting the sink 35 into the mounting groove of the cup cover, the main machine and the cup cover are well aligned and matched, and the user operation is convenient.

[0059] In addition, in a preferred embodiment of the utility model, as shown in Figure 4 The bottom cover 30 further comprises an inner ring rib 36 surrounding the edge of the output hole 31 and an outer ring rib 37 surrounding the inner ring rib 36, the support part 32 is located at the outer periphery of the outer ring rib 37, and the first oil storage groove 38 is formed between the inner ring rib 36 and the outer ring rib 37.

[0060] More preferably, as shown in Figure 6 , 7As shown, the gear assembly 23 comprises a sun gear 231, planet gears 232 meshing with the outer periphery of the sun gear 231, planet carriers 233 in transmission connection with the planet gears 232, and an output shaft 24 protruding from the end face of the planet carriers 233. The end face of the planet carriers 233 is provided with oil blocking ribs 2331 extending into the first oil storage groove 38.

[0061] By providing the oil blocking ribs 2331 on the end face of the planet carriers 233, the oil blocking ribs 2331 extend into the first oil storage groove 38 to achieve plug-in cooperation, thereby prolonging the path of the leaked oil and preventing the oil from leaking.

[0062] By providing the inner ring ribs 36 and the outer ring ribs 37 surrounding the inner ring ribs 36 on the bottom cover 30, the support portions 32 are located at the outer periphery of the outer ring ribs 37. If the oil on the inner side of the ring gear 222 flows down from the support portions 32, it will be blocked by the outer ring ribs 37 and the inner ring ribs 36, and will not leak from the output hole 31, thereby increasing the difficulty of oil leakage. Moreover, the first oil storage groove 38 is formed between the inner ring ribs 36 and the outer ring ribs 37, and the oil will be temporarily stored in the first oil storage groove 38 to avoid leakage from the output hole 31. In addition, since the inner ring ribs 36 are arranged around the edge of the output hole 31, the strength of the bottom cover 30 at the edge of the output hole 31 is strengthened, and the bottom cover 30 at the output hole 31 is prevented from being fragile and breaking.

[0063] In another more preferred embodiment, a second oil storage groove 39 is formed between the outer side wall of the outer ring ribs 37 and the inner side wall of the support portions 32, and the groove width of the second oil storage groove 39 is greater than the groove width of the first oil storage groove 38.

[0064] By making the groove width of the second oil storage groove 39 greater than the groove width of the first oil storage groove 38, most of the oil that flows down after passing through the support portions 32 is temporarily stored in the second oil storage groove 39, thereby further reducing the amount of oil flowing to the first oil storage groove 38, and further reducing the possibility of oil flowing out of the output hole 31.

[0065] In addition, it should be noted that the structure of the limiting member is not limited in the utility model, for example:

[0066] In the implementation example 1, the limiting member 33 comprises a plug-in column, and the limiting cooperation member 223 comprises a plug-in slot for plug-in cooperation of the plug-in column.

[0067] More specifically, referring to Figure 2 , 4 As shown, the plug-in column is a cross-shaped column with a cross-shaped cross section;

[0068] In fact, the plug-in column can also be a solid cylindrical column;

[0069] Alternatively, the plug-in column is a wire clamping column for clamping wires, and the wire clamping column can be provided with a clamping hook for clamping wires or the wire clamping column cooperates with the side wall of the bottom cover to press the wires;

[0070] Alternatively, the insertion post is a threaded bolt which is screwed into the insertion slot.

[0071] Correspondingly, the insertion slot is preferably shaped to match the insertion post, of course, when the insertion post is a cross-shaped cross post, the insertion slot can be either circular or cross-shaped.

[0072] By including the insertion post in the limiting post, the limiting fitting 223 includes the insertion slot, so that the precise alignment between the gear ring 222 and the bottom cover 30 can be achieved with only one insertion post, thus simplifying the structure of the limiting piece 33 and the structure of the main machine. Of course, in the case of multiple insertion posts, the alignment accuracy can be further improved. The insertion post is a cylinder, which is simple in structure and easy to form. The cross-shaped cross post can be more intuitive and easy to identify, simplifying the alignment difficulty. The wire clamping post can realize the reuse of the wire clamping post and achieve compact and simplified structure. The insertion post is provided with internal threads to achieve fixed connection with the insertion slot, which realizes reliable connection between the gear ring 222 and the bottom cover 30 on the basis of realizing alignment guidance.

[0073] Embodiment Example 2, in combination with Figure 4 The limiting fitting 223 is the outer side wall of the gear ring 222, the bottom cover is provided with a groove 332 for mounting a safety switch, and the limiting piece 33 includes a first limiting rib 331 arranged around the gear ring 222 and a groove wall of the groove 332.

[0074] Preferably, the first limiting rib 331 is integrally provided on the fixing piece 34. In fact, the first limiting rib 331 can also be arranged independently of the fixing piece.

[0075] Through the cooperation of the first limiting rib and the groove wall, direct radial guidance and limiting of the gear ring 222 are realized, the alignment is more direct, the assembly is labor-saving, and moreover, the groove simultaneously mounts the safety switch, realizing functional reuse, making the main machine structure compact.

[0076] Embodiment Example 3, the limiting piece 33 includes a convex rib integrally protruding from the side of the fixing piece 34, and the convex rib is limited to the outer periphery of the outer side wall of the gear ring 222.

[0077] Correspondingly, the limiting fitting 223 is the outer side wall of the gear ring 222, and the convex rib radially limits the outer side wall of the gear ring.

[0078] By integrally protruding the convex rib from the side of the fixing piece 34, the convex rib is directly limited to the outer periphery of the outer side wall of the gear ring 222 to directly limit the outer side wall of the gear ring 222, which also plays a role in guiding installation. At the same time, the convex rib also plays a role in structurally reinforcing the fixing piece 34, making the connection between the fixing piece 34 and the fixing fitting 224 more reliable.

[0079] It should be noted that the limit member in the different embodiments described above can be applied independently or in combination.

[0080] In addition, the specific structure of the fixing member is not limited, such as Figures 1-4 As shown, the fixing member 34 is a stud, the fixing matching member 224 is a threaded hole, and the first screw 40 locks the threaded hole and the stud to achieve the fixed connection of the upper cover 22 and the bottom cover 30 of the reduction gearbox.

[0081] Of course, the fixing member can also be a fixing column, and the fixing matching member is a fixing groove, and the fixing column and the fixing groove are fixed by heat melting.

[0082] In addition, the shell 10 and the bottom cover 30 can be fixed by the second screw 60 in combination Figure 7 with the above.

[0083] The parts not described in the utility model can be realized by using or referring to the existing technology.

[0084] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0085] The above only describes the embodiments of the utility model and is not used to limit the utility model. The utility model can be changed and varied in various ways for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the claim range of the utility model.

Claims

1. An assembled precision food processor, comprising a main machine, the main machine comprising a casing provided with an open end and a bottom cover fixed to the open end of the casing, the casing and the bottom cover enclosing a mounting cavity in which a motor assembly is mounted, the motor assembly comprising a motor, a reduction box upper cover fixedly connected with the motor, a gear assembly, and an output shaft in driving cooperation with the gear assembly, the reduction box upper cover and the bottom cover enclosing a containing cavity for accommodating the gear assembly, characterized in that, The upper cover of the reduction gearbox comprises a cover body and a gear ring integrally connected with the cover body and engaged with the outer periphery of the gear assembly, and the bottom cover comprises an output hole through which the output shaft extends, a supporting portion located at the outer periphery of the output hole and supporting the gear ring, a limiting member protruding relative to the supporting portion and located at the outer periphery of the gear ring, and a fixing member, the limiting member being located closer to the gear ring than the fixing member, and the upper cover of the reduction gearbox further comprises a limiting fitting member radially limiting the limiting member and a fixing fitting member fixedly connected with the fixing member.

2. The assembly precision food processor according to claim 1, wherein, The supporting portion is an annular surrounding plate abutting against the gear ring, and the limiting member is connected to the outer side of the annular surrounding plate and protrudes relative to the end face of the annular surrounding plate.

3. The precision assembled food processor of claim 2, wherein, The end face of one of the annular surrounding plate and the gear ring is provided with a plug, and the end face of the other one is provided with a fitting portion matched with the plug.

4. The assembly precision food processor according to claim 1, wherein, The bottom cover comprises a sunken groove formed by being arched outward, the output hole is located at the groove bottom wall of the sunken groove, the side wall top end face of the sunken groove supports the gear ring, and the supporting portion is the side wall of the sunken groove.

5. The precision assembled food processor of claim 4, wherein, The inner surface and the outer surface of the side wall of the sunken groove are circular, the end face of the side wall of the sunken groove is matched with the shape of the end face of the gear ring, and the food processor further comprises a cup cover supporting the main machine, the cup cover is provided with a mounting groove, the sunken groove is inserted into the mounting groove, and the side wall of the sunken groove is radially limited by the inner wall of the mounting groove.

6. The assembly precision food processor according to claim 1, wherein, The bottom cover further comprises an inner ring rib surrounding the edge of the output hole and an outer ring rib surrounding the inner ring rib, the supporting portion is located at the outer periphery of the outer ring rib, and a first oil storage groove is formed between the inner ring rib and the outer ring rib.

7. The precision assembled food processor of claim 6, wherein, The outer side wall of the outer ring rib and the inner side wall of the supporting portion form a second oil storage groove, and the groove width of the second oil storage groove is greater than the groove width of the first oil storage groove. Alternatively, the gear assembly comprises a planetary support provided with the output shaft, the end face of the planetary support is provided with an oil blocking rib, and the oil blocking rib extends into the first oil storage groove.

8. The assembly precision food processor according to claim 1, wherein, The limiting member comprises a plug column, the limiting fitting member comprises a plug groove matched with the plug column, the plug column is a cylindrical column, or a cross column with a cross section in the shape of a cross, or a wire clamping column for clamping wires, or a screw column provided with an inner thread and locked with the plug groove through a screw.

9. The assembly precision food processor according to claim 1, wherein, The limiting fitting member is the outer side wall of the gear ring, the bottom cover is provided with a groove for installing a safety switch, and the limiting member comprises a first limiting rib arranged around the gear ring and a groove wall of the groove.

10. The assembly precision food processor according to claim 1, wherein, The side portion of the fixing member is integrally provided with a protruding rib, and the protruding rib is limited in the outer periphery of the outer side wall of the gear ring.

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