Food processor with good centering
By setting a limiting component between the moving gear ring and the housing of the food processing machine, the problem of poor alignment between the double gear and the gear shaft is solved, resulting in reduced noise and improved durability, ensuring smooth operation of the main unit and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HONGYANG HOME APPLIANCES
- Filing Date
- 2022-08-30
- Publication Date
- 2026-06-26
Smart Images
Figure CN116350103B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of food processing equipment technology, and more specifically to a food processing machine with good neutrality. Background Technology
[0002] A food processor with a dough-kneading function is available, comprising a meat grinder cup and a main unit. A dough-kneading rod is installed inside the meat grinder cup, a lid covers the upper opening of the meat grinder cup, and the main unit is installed above the lid. When the food processor is working, the motor inside the main unit drives the dough-kneading rod to rotate via a two-stage reduction gearbox, thereby mixing the ingredients inside the dough grinder cup.
[0003] The gearbox in the main unit has a double gear structure. The motor output is transmitted to the double gears via the sun gear. The double gears drive the planetary carrier and the moving ring gear, thus forming a two-stage output. The moving ring gear, after achieving two-stage reduction through the planetary carrier and the double gears, meshes with the kneading rod. During kneading, the dough is distributed on one side of the cup after forming a ball. Its position is constantly adjusted during the stirring process. Therefore, the dough exerts a large radial force on the kneading rod during operation. This radial force is transmitted to the inner wall of the gearbox housing through the moving ring gear. As a result, the entire gearbox bears the radial force transmitted from the lower kneading rod during operation and meshing. The moving ring gear wobbles during operation. Due to the internal structure of the double gear, the double gear meshes with the fixed gear and the moving ring gear with a certain wobble at the same time, causing the double gear to wobble. This results in high noise levels in the entire gearbox and misalignment of the double gears. During prolonged misalignment, the gear shaft and the double gears become poorly aligned. Over time, the misalignment of the double gears leads to reaming problems in the center shaft hole of the gear shaft and the double gears, causing the gearbox to fail. Summary of the Invention
[0004] The purpose of this invention is to provide a food processing machine with good centering, so as to solve the problems of poor centering between the double gears and the gear shaft and poor durability of the reduction mechanism caused by the double gear transmission of the main body of the existing food processing machine.
[0005] To achieve the above objectives, the present invention provides a food processing machine with good neutrality, including a main unit equipped with a motor and a reduction mechanism. The reduction mechanism includes a housing and a fixed gear ring, a double gear, a moving gear ring, and a planetary carrier that cooperate with each other. The motor shaft of the motor drives the double gear ring to rotate. The double gear ring includes an upper gear that meshes with the fixed gear ring and a lower gear that meshes with the moving gear ring. The housing surrounds the outer periphery of the moving gear ring. A limiting member is provided between the moving gear ring and the side wall of the housing. The limiting member includes a first limiting member and a second limiting member arranged sequentially along the axial direction of the housing. The moving gear ring is divided into a meshing section and an output section connected to the meshing section along the axial direction of the housing. The inner side of the meshing section meshes with the lower gear and its outer diameter is larger than that of the output section. The first limiting member is arranged around the upper part of the meshing section, and the second limiting member is arranged around the output section.
[0006] The food processing machine provided by the present invention has a limiting member between the moving gear ring and the side wall of the housing. The limiting member reduces the swing space between the moving gear ring and the side wall of the housing, thereby limiting the swing of the moving gear ring to a certain extent.
[0007] The limiting components specifically include a first limiting component and a second limiting component arranged sequentially along the axial direction of the housing. The inner side of the meshing section meshes with the lower gear and its outer diameter is larger than that of the output section. The first limiting component is arranged around the upper part of the meshing section, and the second limiting component is arranged around the output section. Therefore, in the horizontal direction, the first and second limiting components achieve an outward-to-inward sway limiting effect between the housing and the moving gear ring. In the vertical direction, the first and second limiting components work together. The second limiting component corrects the sway of the output section, i.e., the position near the source of the sway force, while the first limiting component corrects the upper sway of the meshing section. In particular, it can control the sway of the upper part of the meshing section, which refers to the part located more than half of the overall height of the meshing section. Therefore, the first limiting component restricts the swing space of the upper part of the meshing section, and together with the second limiting component, achieves an overall straightening effect on multiple points of the moving gear ring along the axial direction, reducing the radial wobble of the moving gear ring and improving rotational stability. Furthermore, because the actual oscillation of the moving gear ring is subject to a large torque from the workpiece, a first limiting component is added to the upper part of the meshing section, which is the furthest point of force application, to prevent excessive swaying at the output section due to the large force exerted by the second limiting component. Therefore, the first and second limiting components provide comprehensive alignment for the entire moving gear ring, allowing the radial force from the workpiece to be partially offset after being transmitted to the moving gear ring. This prevents the force from being fully transmitted to the lower gear and the upper gear of the double-toothed system, thus ensuring the alignment effect between the double-toothed system and the gear shaft, as well as the perpendicularity of the double-toothed system to the fixed gear ring. This ensures effective meshing transmission, prevents gear jamming, and allows the main unit to operate normally and smoothly.
[0008] By ensuring the alignment of the double gear teeth with the gear shaft, the problem of reaming is avoided, the operating noise of the main unit is reduced, the dynamic balance of the main unit is improved, the durability of the internal structure of the main unit is enhanced, and the service life is extended.
[0009] In addition, the outer diameter of the meshing section is larger than that of the output section, which is equivalent to the moving gear ring forming a constriction on the side near the output end, which facilitates the transmission connection with the workpiece and also achieves reliable and effective meshing with the double gear, making the main unit more practical.
[0010] Preferably, the first limiting member and / or the second limiting member are fixed to the outside of the moving gear ring and the outer side of the automatic gear ring protrudes outward.
[0011] The first and / or second limiting members are fixed to the outside of the moving gear ring to ensure reliable fixation. When the main unit is working, the first and / or second limiting members rotate with the moving gear ring to ensure effective limiting of the moving gear ring. Compared with the method of setting them on the housing, this reduces the probability of interference caused by the limiting members to the rotation of the moving gear ring. The outward protrusion of the first and / or second limiting members can reduce the wobble space between the housing and the moving gear ring, thereby effectively correcting the wobble of the moving gear ring.
[0012] Preferably, the first limiting member includes a rib protruding from the outside of the fixed gear ring, and the housing is provided with a support step that cooperates with the rib. The support step has a support surface that laterally blocks the rib and a limiting surface that surrounds the rib circumferentially.
[0013] By employing a combination of ribs and supporting steps, the moving gear ring is straightened. The supporting steps have a support surface that laterally blocks the ribs and a limiting surface that circumferentially surrounds them. The limiting surface provides radial straightening of the moving gear ring, while the support surface provides axial positioning under conditions of significant gear ring runout. This limits the runout of the moving gear ring, reduces radial wobble, and improves rotational stability.
[0014] Preferably, there is a clearance between the limiting surface and the outer surface of the rib.
[0015] There is a clearance between the limiting surface and the outer side of the rib. During the normal rotation of the moving gear ring, the limiting surface can avoid rotational interference with the rib, thus ensuring smooth transmission and normal operation of the host. In the event of wobbling of the moving gear ring, the limiting surface and the rib limit the wobbling, preventing excessive wobbling of the moving gear ring and ensuring the meshing perpendicularity of the moving gear ring, thereby improving the alignment effect of the gear shaft and the double gear.
[0016] Preferably, the clearance S1 satisfies 0.1mm≤S1≤0.3mm.
[0017] If the clearance S1 is too small (less than 0.1 mm), it may cause rotational interference to the moving gear ring, resulting in significant wear on the housing. If the clearance S1 is too large (greater than 0.3 mm), it may affect the radial limiting effect of the rib, causing the straightening effect on the moving gear ring to fail, which is not conducive to maintaining the stable operation of the moving gear ring.
[0018] Preferably, the limiting surface is provided with multiple ribs arranged at intervals along the circumference of the fixed gear ring, and an oil storage space is formed between adjacent ribs.
[0019] The limiting surface is provided with multiple ribs spaced apart along the circumference of the fixed gear ring. When the moving gear ring deflects a large amount, the ribs and the raised ribs cooperate to limit the further swing of the moving gear ring. At the same time, it avoids the limiting surface directly cooperating with the raised ribs, which would cause severe wear. An oil storage space is formed between adjacent ribs to avoid dry friction between the raised ribs and the ribs, and to avoid generating too much heat that would cause the shell to soften or become unstable. This ensures the effective limiting function of the shell and the anti-deflection strength of the moving gear ring.
[0020] Preferably, the first limiting member and / or the second limiting member are bearings, with the inner side of the bearing fixed to the outer side of the moving gear ring and the outer side of the bearing abutting against the side wall of the housing.
[0021] By using bearings, which have high strength, are easy to install, and have low component costs, assembly efficiency and accuracy can be improved while using bearings to radially limit the moving gear ring. This avoids large cumulative tolerances between the moving gear ring and the housing during assembly, helps maintain the smooth operation of the moving gear ring, and ensures the alignment of the double gear ring with the gear shaft.
[0022] Preferably, the engagement section and the output section are connected by a transverse transition section, the housing is provided with a transverse support corresponding to the transition section, and the limiting member also includes a third limiting member located between the support and the transition section.
[0023] A third limiting element is installed between the support and the transition section to achieve axial limiting of the moving gear ring. Therefore, along the axial direction, the first, second, and third limiting elements together form three points of support, which straighten the moving gear ring at multiple positions along the axial direction, thereby limiting the sway of the moving gear ring. In addition, if sway occurs during the operation of the moving gear ring, direct friction between the transition section and the support can be avoided by separating them with the third limiting element, thus protecting the moving gear ring, ensuring its wear resistance, and extending its service life.
[0024] Preferably, the third limiting member extends circumferentially along the transition section to form a ring.
[0025] The third limiting component extends circumferentially along the transition section to form a ring, which can achieve all-round multi-point support and limiting, thereby further improving the runout of the moving gear ring and the wear during operation, fully protecting the moving gear ring, thus ensuring the wear resistance of the moving gear ring and extending its service life.
[0026] Preferably, the housing includes a lower housing that is inserted into the side wall of the fixed gear ring, the lower housing surrounds the outer periphery of the movable gear ring, and the lower housing and the fixed gear ring are fixed by a fixing component.
[0027] The sidewall of the fixed gear ring is inserted into and fixed to the sidewall of the lower housing by a fixing component. This facilitates the protection of the double gear and the moving gear ring, and also facilitates the assembly of components. The lower housing surrounds the outer circumference of the moving gear ring, preventing other external components from interfering with its rotation and ensuring smooth rotation. This contributes to the overall structural reliability and stability of the main unit. The fixed gear ring and the lower housing are reliably fixed by the fixing component, ensuring the meshing perpendicularity of the fixed gear ring, double gear, and moving gear ring, thus guaranteeing the effectiveness of meshing and transmission. Attached Figure Description
[0028] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:
[0029] Figure 1 This is a schematic diagram of the structure of a food processing machine according to one embodiment of the present invention.
[0030] Figure 2 for Figure 1 A magnified view of part A in the middle.
[0031] Figure 3 This is a partially enlarged schematic diagram of the housing and moving gear ring mating structure in one embodiment of the present invention.
[0032] Figure 4 This is a schematic diagram of the lower housing structure in one embodiment of the present invention.
[0033] Figure 5 This is an exploded structural diagram of the host computer in one embodiment of the present invention.
[0034] Figure 6 This is a partially enlarged schematic diagram of the housing and moving gear ring mating structure in another embodiment of the present invention.
[0035] Figure 7 This is a partially enlarged schematic diagram of the housing and moving gear ring mating structure in one embodiment of the present invention.
[0036] Explanation of reference numerals in the attached figures:
[0037] 10-Motor; 11-Motor shaft; 20-Reduction mechanism; 30-Main unit; 40-Stirring cup; 41-Stirring component; 21-Shell; 211-Supporting surface; 212-Limiting surface; 2121-Ribs; 2122-Oil storage space; 213-Lower shell; 2131-Limiting protrusion; 214-Supporting part; 22-Fixed gear ring; 221-Limiting groove; 23-Double gear; 231-Upper gear; 232-Lower gear; 24-Moving gear ring; 241-Meshing section; 242-Output section; 243-Transition section; 25-Planetary carrier; 26-Limiting component; 261-First limiting component; 2611-Protruding rib; 262-Second limiting component; 263-Third limiting component; 264-Limiting gasket. Detailed Implementation
[0038] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.
[0039] It should be noted that many specific details are set forth in the following description in order 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.
[0040] like Figure 1 , Figure 2 As shown, in one embodiment of the present invention, a food processing machine with good neutrality is provided, including a main unit 30 equipped with a motor 10 and a reduction mechanism 20. The reduction mechanism 20 includes a housing 21 and a fixed gear ring 22, a double gear 23, a movable gear ring 24, and a planetary carrier 25 that mesh with each other. The motor shaft 11 of the motor 10 drives the double gear 23 to rotate. The double gear 23 includes an upper gear 231 that meshes with the fixed gear ring 22 and a lower gear 232 that meshes with the movable gear ring 24. The housing 21 surrounds the movable gear ring 24. A limiting member 26 is provided between the moving gear ring 24 and the side wall of the housing on the outer periphery. The limiting member 26 includes a first limiting member 261 and a second limiting member 262 arranged sequentially along the axial direction of the housing. The moving gear ring 24 is divided into a meshing section 241 and an output section 242 connected to the meshing section along the axial direction of the housing. The inner side of the meshing section 241 meshes with the lower gear 232 and its outer diameter is larger than that of the output section 242. The first limiting member 261 is arranged around the upper part of the meshing section 241, and the second limiting member 262 is arranged around the output section 242.
[0041] Specifically, such as Figure 1 The food processor also includes a mixing cup 40, within which a mixing element 41 is installed. The main unit 30 is positioned above the mixing cup 40 to drive the mixing element 41 to rotate. The mixing element 41 may include a dough-grinding rod or a meat grinder. The meat grinder and the dough-grinding rod are detachably connected to the output end of the planetary carrier 25 and the output end of the moving gear ring 24, respectively, enabling the food processor to perform both meat grinding and dough-grinding functions.
[0042] like Figure 1 and Figure 2 As shown, the food processing machine provided by the present invention has a limiting member 26 between the moving gear ring 24 and the side wall of the housing 21. The limiting member 26 reduces the swing space between the moving gear ring 24 and the side wall of the housing 21, thereby limiting the swing of the moving gear ring 24 to a certain extent.
[0043] The limiting member 26 specifically includes a first limiting member 261 and a second limiting member 262 arranged sequentially along the axial direction of the housing 21. The inner side of the meshing section 241 meshes with the lower gear 232 and its outer diameter is larger than that of the output section 242. The first limiting member 261 is arranged around the upper part of the meshing section 241, and the second limiting member 262 is arranged around the output section 242. Therefore, in the horizontal direction, the first limiting member 261 and the second limiting member achieve an inward sway limiting effect between the housing 21 and the moving gear ring 24; in the vertical direction, the first limiting member 261 and the second limiting member 262 work together. The second limiting member 262 corrects the sway of the output section 242, which is close to the source of the sway force, and the first limiting member 261 corrects the upper sway of the meshing section 241. In particular, it can control the upper sway of the meshing section 241, which is located at more than half of the overall height of the meshing section. This limits the swing space of the upper part of the meshing section 241, and together with the second limiting member 262, achieves an overall straightening effect on multiple points of the moving gear ring 24 along the axial direction, reduces the radial wobble of the moving gear ring 24, and improves the rotational stability. Furthermore, since the actual oscillation of the moving gear ring 24 is subject to a large torque from the workpiece, the upper part of the meshing section 241, as the furthest point of force application, is supported by a first limiting member 261 to prevent excessive swaying of the output section 242 due to the large force exerted by the second limiting member 262. Therefore, the first limiting member 261 and the second limiting member 262 provide comprehensive alignment for the moving gear ring 24, ensuring that the radial force of the workpiece is partially offset after being transmitted to the moving gear ring 24, preventing it from being fully transmitted to the lower gear 232 and the upper gear 231 of the double gear ring 23. This ensures the alignment effect between the double gear ring 23 and the gear shaft, as well as the perpendicularity of the meshing between the double gear ring 23 and the fixed gear ring 22, guaranteeing effective meshing transmission and preventing tooth jamming, thus ensuring the smooth and normal operation of the main unit.
[0044] By ensuring the alignment of the double gear 23 with the gear shaft, the problem of reaming is avoided, the operating noise of the main unit 30 is reduced, the dynamic balance of the main unit 30 is improved, the durability of the internal structure of the main unit is enhanced, and the service life is extended.
[0045] In addition, the outer diameter of the meshing section 241 is larger than the outer diameter of the output section 242, which means that the moving gear ring 24 forms a constriction on the side near the output end, which facilitates the transmission connection with the workpiece and also achieves reliable and effective meshing with the double gear 23, making the main unit more practical.
[0046] It should be noted that, as Figure 1 , Figure 2 In the embodiment shown, the outer diameter R1 of the upper gear 231 of the double gear 23 is greater than the outer diameter R2 of the lower gear 232. In fact, the double gear 23 can be a spur gear with the same upper and lower outer diameters, that is, the outer diameters of the upper gear 231 and the lower gear 232 are equal.
[0047] In a preferred embodiment, such as Figure 2 and Figure 3 As shown, the first limiting member 261 is fixed to the outside of the moving gear ring 24 and the outer side of the moving gear ring 24 protrudes outward.
[0048] Specifically, such as Figure 3 As shown, the first limiting member 261 includes a rib 2611 protruding from the outside of the fixed gear ring 22, and the housing 21 is provided with a support step that cooperates with the rib 2611. The support step has a support surface 211 that laterally blocks the rib and a limiting surface 212 that surrounds the rib in the circumferential direction.
[0049] The first limiting member 261 is fixed to the outside of the moving gear ring 24, thereby ensuring reliable fixation. When the main unit is working, the first limiting member 261 rotates with the moving gear ring 24, ensuring its effective limiting of the moving gear ring 24. Compared with the method of setting it on the housing 21, it reduces the probability of interference caused by the limiting member 26 to the rotation of the moving gear ring 24. The outward protrusion of the first limiting member 261 can reduce the sway space between the housing 21 and the moving gear ring 24, thereby effectively correcting the sway of the moving gear ring 24.
[0050] By employing a combination of a raised rib 2611 and a supporting step, the moving gear ring 24 is straightened. The supporting step has a supporting surface 211 that laterally blocks the raised rib and a limiting surface 212 that circumferentially surrounds the raised rib. Thus, the limiting surface 212 provides radial straightening for the moving gear ring 24, while the supporting surface provides axial positioning for the moving gear ring 24 under conditions of significant sway, thereby limiting the sway of the moving gear ring 24, reducing radial wobble, and improving rotational stability.
[0051] Specifically, such as Figure 2 , Figure 3 As shown, the second limiting member 262 is a bearing, preferably an oil-impregnated bearing. The inner side of the bearing is fixed to the outer side of the moving gear ring 24, and the outer side of the bearing abuts against the side wall of the housing 21.
[0052] By using bearings, which have high strength, are easy to install, and have low component costs, assembly efficiency and accuracy can be improved while using bearings to radially limit the moving gear ring 24. This avoids large cumulative tolerances between the moving gear ring 24 and the housing 21 during assembly, helps maintain the smooth operation of the moving gear ring 24, and ensures the alignment of the double gear 23 with the gear shaft.
[0053] Furthermore, a limiting gasket 264 supported by the housing 21 is provided at the bottom end of the bearing.
[0054] In a preferred embodiment, a clearance gap S1 is provided between the limiting surface 212 and the outer surface of the rib 2611.
[0055] There is a clearance between the limiting surface 212 and the outer surface of the rib 2611. During the normal rotation of the moving gear ring 24, the limiting surface 212 can avoid rotational interference with the rib 2611, thereby ensuring smooth transmission and normal operation of the host. In the event of wobbling of the moving gear ring 24, the limiting surface 212 and the rib 2611 limit the wobbling, preventing excessive wobbling of the moving gear ring 24 and ensuring the meshing perpendicularity of the moving gear ring 24, thereby improving the alignment effect of the gear shaft and the double gear 23.
[0056] More preferably, such as Figure 3 As shown, the clearance S1 satisfies 0.1mm≤S1≤0.3mm.
[0057] If the clearance S1 is too small (less than 0.1 mm), it may cause rotational interference to the moving gear ring 24, resulting in significant wear on the housing 21. If the clearance S1 is too large (greater than 0.3 mm), it may affect the radial limiting effect of the rib 2611, causing the straightening effect on the moving gear ring 24 to fail, which is not conducive to maintaining the stable operation of the moving gear ring 24.
[0058] In a preferred embodiment, such as Figure 4 and Figure 5 As shown, the limiting surface 212 is provided with multiple ribs 2121 arranged at intervals along the circumference of the fixed tooth ring 22, and an oil storage space 2122 is formed between adjacent ribs 2121.
[0059] The limiting surface 212 is provided with multiple ribs arranged at intervals along the circumference of the fixed gear ring 22. When the moving gear ring 24 has a large amount of sway, the ribs 2121 and the ribs 2611 cooperate to limit the further sway of the moving gear ring 24. At the same time, it avoids the limiting surface from directly cooperating with the ribs 2611, which would cause severe wear. An oil storage space 2122 is formed between adjacent ribs 2121 to avoid dry friction between the ribs 2121 and the ribs 2611, and to avoid generating too much heat that would cause the housing 21 to soften or become unstable. This ensures the effective limiting function of the housing 21 and the anti-sway strength of the moving gear ring 24.
[0060] Of course, it should be noted that the specific structure of the first limiting member 261 and the second limiting member 262 is not limited to the one described above. In fact, in another preferred embodiment, both the first limiting member 261 and the second limiting member 262 are bearings, such as... Figure 6 As shown; or, both the first limiting member 261 and the second limiting member 262 adopt the form of raised ribs; or the first limiting member 261 can be a bearing and the second limiting member 262 can be a raised rib.
[0061] It should also be noted that in this invention, the first limiting member 261 may be located only in the upper part of the meshing section, such as... Figure 1-5 As shown, in practice, based on this embodiment, the first limiting member 261 extends downward to laterally block the lower part of the engaging section, as... Figure 7 As shown.
[0062] The first limiting member 261 extends axially along the meshing section 241 to laterally block the upper and lower parts of the meshing section 241. This provides a more comprehensive radial limiting effect on the meshing section 241, further enhancing the radial limiting effect and helping to maintain the perpendicularity of the double gear 23 meshing with the fixed gear ring 22 and the moving gear ring 24, avoiding gear jamming and ensuring smooth operation of the main unit. The first limiting member 261 provides comprehensive support at the furthest point of the meshing section 241 where the yaw force is greatest, preventing excessive yaw at the output section 242 due to greater force caused by the second limiting member 262.
[0063] In a preferred embodiment, such as Figure 3 and Figure 5 As shown, the engagement section 241 and the output section 242 are connected by a transverse transition section 243. The housing 21 is provided with a transverse support 214 corresponding to the transition section 243. The limiting member 26 also includes a third limiting member 263 located between the support 214 and the transition section 243.
[0064] A third limiting member 263 is provided between the support part 214 and the transition section 243, thereby achieving axial limiting of the moving gear ring 24. Therefore, along the axial direction, the first limiting member 261, the second limiting member 262 and the third limiting member 263 together form a three-point support, which straightens the moving gear ring 24 at multiple positions along the axial direction, thereby limiting the sway of the moving gear ring 24. In addition, if sway occurs during the operation of the moving gear ring 24, the support part 214 and the transition section 243 can be prevented from directly rubbing against each other. The third limiting member 263 separates and protects the moving gear ring 24, thereby ensuring the wear resistance of the moving gear ring 24 and extending its service life.
[0065] More preferably, the third limiting member 263 extends circumferentially along the transition section 243 to form a ring.
[0066] The third limiting member 263 extends circumferentially along the transition section to form a ring, which can achieve all-round multi-point support and limiting, thereby further improving the wobble of the moving gear ring 24 and the wear during operation, fully protecting the moving gear ring 24, thus ensuring the wear resistance of the moving gear ring 24 and extending its service life.
[0067] The specific structure of the third limiting member 263 is not limited in this invention; for example, Figure 3 and Figure 5 In the middle, the third limiting member 263 is a wear-resistant pad fixed on the support part 214. The wear-resistant pad can be a bakelite pad or a Teflon pad.
[0068] More specifically, a protrusion that mates with a wear-resistant pad is provided on the bottom surface of the transition section 243.
[0069] The present invention does not limit the structure of the housing 21. In a preferred embodiment, such as Figure 5 As shown, the housing 21 includes a lower housing 213 that is inserted into the side wall of the fixed gear ring. The lower housing 213 surrounds the outer periphery of the movable gear ring 24, and the lower housing 213 and the fixed gear ring 22 are fixed by a fixing component.
[0070] The sidewall of the fixed gear ring 22 is inserted into and fixed to the sidewall of the lower housing 213 by a fixing assembly. This facilitates the protection of the double gear and the moving gear ring 24 and the assembly of the components. The lower housing 213 surrounds the outer periphery of the moving gear ring 24, preventing other external components from interfering with the rotation of the moving gear ring 24 and ensuring its smooth rotation. This ensures the reliability and stability of the entire main unit structure. The fixed gear ring 22 and the lower housing 213 are reliably fixed by the fixing assembly, ensuring the meshing perpendicularity of the fixed gear ring 22, the double gear 23, and the moving gear ring 24, thus guaranteeing the effectiveness of meshing and transmission.
[0071] The fixed gear ring 22 can mesh with the double gear and at the same time serve as a protective outer shell, which is reliably fixed to the lower shell 213. This ensures the meshing perpendicularity of the fixed gear ring 22, the double gear ring 23, and the moving gear ring 24, thus guaranteeing the effectiveness of meshing and transmission.
[0072] More specifically, such as Figure 5 As shown, the lower housing 213 is provided with a limiting protrusion 2131, and the fixed gear ring 22 is provided with a limiting groove 221 for the limiting protrusion 2131 to be inserted. The limiting protrusion 2131 is inserted into the limiting groove 221 to form a pre-fixed structure, and the lower housing and the fixed gear ring 22 are locked together by screws.
[0073] In the description of this invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0074] In this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.
[0075] The technical solutions protected by this invention are not limited to the above embodiments. It should be noted that any combination of the technical solutions of any embodiment with one or more other embodiments is within the protection scope of this invention. Although the invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this invention are within the scope of protection claimed by this invention.
Claims
1. A food processing machine with good neutrality, comprising a main unit equipped with a motor and a reduction mechanism, wherein the reduction mechanism includes a housing and mutually cooperating fixed gear ring, double gear ring, movable gear ring, and planetary carrier; the motor shaft of the motor drives the double gear ring to rotate; the double gear ring includes an upper gear meshing with the fixed gear ring and a lower gear meshing with the movable gear ring; the housing surrounds the outer periphery of the movable gear ring; characterized in that, A limiting member is provided between the movable gear ring and the side wall of the housing. The limiting member includes a first limiting member and a second limiting member arranged sequentially along the axial direction of the housing. The movable gear ring is divided into a meshing section and an output section connected to the meshing section along the axial direction of the housing. The inner side of the meshing section meshes with the lower gear and its outer diameter is larger than that of the output section. The first limiting member is arranged around the upper part of the meshing section, and the second limiting member is arranged around the output section.
2. The food processing machine with good neutrality according to claim 1, characterized in that, The first limiting member and / or the second limiting member are fixed to the outside of the moving gear ring and protrude outward from the outside of the moving gear ring.
3. The food processing machine with good neutrality according to claim 2, characterized in that, The first limiting member includes a rib protruding from the outside of the fixed gear ring. The housing is provided with a support step that cooperates with the rib. The support step has a support surface that laterally blocks the rib and a limiting surface that surrounds the rib circumferentially.
4. The food processing machine with good neutrality according to claim 3, characterized in that, There is a clearance between the limiting surface and the outer side of the protruding rib.
5. A food processing machine with good neutrality according to claim 4, characterized in that, The clearance S1 satisfies 0.1mm≤S1≤0.3mm.
6. A food processing machine with good neutrality according to claim 3, characterized in that... The limiting surface is provided with multiple ribs arranged at intervals along the circumference of the fixed gear ring, and an oil storage space is formed between adjacent ribs.
7. A food processing machine with good neutrality according to claim 1 or 2, characterized in that, The first limiting member and / or the second limiting member are bearings, the inner side of the bearing is fixed to the outer side of the moving gear ring, and the outer side of the bearing abuts against the side wall of the housing.
8. A food processing machine with good neutrality according to claim 1, characterized in that, The engagement section and the output section are connected by a transverse transition section. The housing is provided with a transverse support portion corresponding to the transition section. The limiting member also includes a third limiting member located between the support portion and the transition section.
9. A food processing machine with good neutrality according to claim 8, characterized in that, The third limiting member extends circumferentially along the transition section to form a ring.
10. A food processing machine with good neutrality according to claim 1, characterized in that, The housing includes a lower housing that is inserted into the side wall of the fixed gear ring. The lower housing surrounds the outer periphery of the movable gear ring, and the lower housing and the fixed gear ring are fixed by a fixing assembly.