Driving device for stirring equipment and stirring equipment

Abstract

The utility model discloses a driving device for stirring equipment and the stirring equipment, the driving device comprises a shell, a driving assembly and a planetary gear component, the shell is provided with a first chamber and a second chamber which are arranged at intervals along the axial direction of the shell, the driving assembly is arranged in the first chamber and comprises a first driving shaft extending out of the first chamber, and the planetary gear component is arranged in the second chamber. The first driving shaft is suitable for being matched with the stirring piece, the planetary gear assembly is arranged in the second cavity and comprises a second driving shaft extending out of the second cavity, and the second driving shaft is suitable for being matched with the stirring piece. According to the driving device for the stirring equipment disclosed by the embodiment of the utility model, the driving device can output larger torque, and meanwhile, the miniaturization and compact arrangement of the driving device can be realized, so that the driving device has the advantages of small occupied space, low cost, low noise and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to stirring equipment technical field especially is involved in a kind of driving device and stirring equipment for stirring equipment. BACKGROUND

[0002] Existing stirring equipment (such as: chef machine, dough kneader etc.) is widely loved by domestic and foreign users due to its convenience, especially the user in the area where staple food is mainly food.

[0003] Among them, in the process of processing food by using stirring equipment, part of processing steps (such as: after flour is formed into a ball) need stirring equipment to output larger torque, at this time, if directly driven output by using motor, motor needs to be designed very large, correspondingly, the volume and weight of motor will increase, leading to the cost of motor will also be greatly improved, and further increase the cost of stirring equipment.

[0004] In the prior art, in order to solve the above problems, brush motor and worm gear cooperation driving, brush motor and belt wheel cooperation driving or brushless motor and worm gear cooperation driving are usually used, but the above driving modes have problems such as large noise and short service life of motor, which affect the user experience. UTILITY MODEL CONTENTS

[0005] The utility model aims at at least solving one of the technical problems existing in the prior art. For this purpose, the utility model provides a driving device for stirring equipment, which not only has compact structure, small space occupation and low cost, but also can output larger torque to ensure the working performance of the driving device, solving the technical problems of large size, high cost and large noise of the driving device in the prior art.

[0006] The utility model also aims at providing a stirring equipment with the above driving device.

[0007] The driving device for stirring equipment according to the utility model embodiment comprises an outer shell, a driving assembly and a planetary gear assembly. The outer shell has a first chamber and a second chamber arranged along the axial direction. The driving assembly is arranged in the first chamber and comprises a first driving shaft extending out of the first chamber. The first driving shaft is adapted to cooperate with a stirring piece. The planetary gear assembly is arranged in the second chamber and comprises a second driving shaft extending out of the second chamber. The second driving shaft is adapted to cooperate with the stirring piece.

[0008] According to the embodiment of the utility model, the driving assembly is arranged in the first chamber and the planetary gear assembly is arranged in the second chamber, so that the compact arrangement of the driving device is realized, the volume of the driving device is reduced, the miniaturization of the driving device is realized, the planetary gear assembly is arranged, the driving device can output higher and wider rotating speed and larger torque, the volume of the driving device is reduced, the cost of the driving device is reduced, the working performance of the driving device is ensured, the machining precision and surface quality of the planetary gear assembly are improved, the operation noise of the planetary gear assembly is reduced, the driving device of the utility model can output larger torque, has the advantages of compact structure, small space occupation, low cost and small noise and the like.

[0009] In some embodiments, the housing comprises a shell and first and second end covers arranged axially on both sides of the shell, at least part of the first end cover is arranged spaced apart from the shell to form the first chamber in the axial direction of the housing, and at least part of the second end cover is arranged spaced apart from the shell to form the second chamber.

[0010] In some embodiments, the maximum outer diameter of the housing is 85-110 mm.

[0011] In some embodiments, the maximum outer diameter of the housing is 90-100 mm.

[0012] In some embodiments, the maximum height of the housing is 55-80 mm.

[0013] In some embodiments, the maximum height of the housing is 60-75 mm.

[0014] In some embodiments, the driving assembly further comprises a rotor assembly and a stator assembly coupled together, at least one of the rotor assembly and the stator assembly is fixed to the shell and / or the first end cover, and the rotor assembly is coupled with the first driving shaft to drive the first driving shaft to rotate.

[0015] In some embodiments, the planetary gear assembly comprises a sun gear, an inner ring gear and a planetary gear set, the sun gear is coupled with the rotor assembly, the inner ring gear is fixed to the circumferential inner side of the second end cover and / or the shell, the planetary gear set comprises a plurality of planetary gears, a planetary carrier and the second driving shaft, the plurality of planetary gears and the second driving shaft are arranged in the planetary carrier respectively, and the plurality of planetary gears are engaged with the sun gear and the inner ring gear respectively.

[0016] In some embodiments, the first driving shaft and the second driving shaft are coaxially arranged.

[0017] In some embodiments, the reduction ratio of the planetary gear assembly is i, and the i satisfies 6≤i≤12.

[0018] In some embodiments, the gear modulus m of at least one of the sun gear, the planet gears and the ring gear satisfies: 0.6≤m≤1.25.

[0019] In some embodiments, the addendum circle diameter da1 of the sun gear satisfies: 8mm≤da1≤15mm.

[0020] In some embodiments, the driving device further comprises a stator assembly coupled with the rotor assembly, the stator assembly comprises a stator core, the outer diameter of the stator core is D, the root circle diameter of the ring gear is df3, and the driving device satisfies: 0.7≤df3 / D≤0.9.

[0021] In some embodiments, the planetary gear assembly is a multi-stage planetary gear assembly.

[0022] In some embodiments, the number of stages K of the multi-stage planetary gear assembly satisfies: K≤3.

[0023] In some embodiments, at least one first support bearing is provided between the second driving shaft and the housing.

[0024] In some embodiments, the first support bearings are multiple, and a spacing spacer is provided between adjacent first support bearings.

[0025] In some embodiments, the driving device further comprises a control module and a detection device, the detection device is configured to detect the operating state of the rotor assembly, and the control module is electrically connected with the detection device to control the input current of the driving device according to the detection result of the detection device.

[0026] In some embodiments, the detection device comprises a magnetic ring and a Hall component, the magnetic ring is sleeved on the first driving shaft, and the Hall component is provided on the housing and is used to sense the magnetic field change of the magnetic ring.

[0027] In some embodiments, the magnetic ring is located on the part of the first driving shaft that protrudes out of the housing.

[0028] In some embodiments, the housing is further provided with a protection member, the protection member protrudes out of the housing, and in the axial direction of the first driving shaft, the protection member protrudes out of the magnetic ring in the direction away from the housing.

[0029] In some embodiments, the minimum distance between the end surface of the protection member protruding out of the magnetic ring and the magnetic ring is L, and 0.5mm≤L≤5mm.

[0030] According to the stirring equipment of the embodiment of the utility model, through using preceding drive device, can make stirring equipment have small space occupation, low in cost, stirring performance is superior and the advantages such as small noise, improve user experience.

[0031] According to the stirring equipment of the embodiment of the utility model, through using preceding drive device, can make stirring equipment have small space occupation, low in cost, stirring performance is superior and the advantages such as small noise, improve user experience.

[0032] In some embodiments, the stirring equipment is a chef machine or a dough kneader.

[0033] Additional aspects and advantages of the utility model will become apparent from the following description, or will be appreciated by practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0035] Figure 1 It is the sectional view of drive device of some embodiments of the utility model.

[0036] Figure 2 It is the explosion drawing of drive device of some embodiments of the utility model.

[0037] Figure 3 It is the explosion drawing of planetary gear assembly of some embodiments of the utility model.

[0038] Figure 4 It is the side view of planetary gear assembly of some embodiments of the utility model.

[0039] Figure 5 It is the schematic diagram of planetary gear of some embodiments of the utility model.

[0040] Figure 6 It is the schematic diagram of sun gear of some embodiments of the utility model.

[0041] Figure 7 It is the sectional view of partial structure of drive device of some embodiments of the utility model.

[0042] Figure 8 It is the schematic diagram of inner gear ring of some embodiments of the utility model.

[0043] Figure 9 It is the schematic diagram of partial structure of stator assembly of some embodiments of the utility model.

[0044] Figure 10 It is the schematic diagram of partial structure of rotor assembly of some embodiments of the utility model.

[0045] Figure 11 An exploded view of the planetary gear assembly of some embodiments of the present application.

[0046] Figure 12 An exploded view of the partial structure of the driving device of some embodiments of the present application.

[0047] Figure 13 A side view of the partial structure of the driving device of some embodiments of the present application.

[0048] Figure 14 A schematic view of the magnetic ring of some embodiments of the present application.

[0049] Figure 15 A schematic view of the magnetic ring of some embodiments of the present application.

[0050] Figure 16 A schematic view of the Hall assembly of some embodiments of the present application.

[0051] Figure 17 An enlarged view of the partial structure of the driving device in Figure 1

[0052] Reference signs:

[0053] 1000, driving device;

[0054] 100, housing;

[0055] 110, protection piece; 120, shell; 130, first end cover; 140, second end cover;

[0056] 150, first cavity; 160, second cavity;

[0057] 900, driving assembly;

[0058] 200, rotor assembly; 210, rotor core; 220, second support bearing;

[0059] 310, first driving shaft;

[0060] 500, stator assembly; 510, stator core;

[0061] 400, planetary gear assembly;

[0062] 410, sun gear;

[0063] 420, inner ring gear;

[0064] 430, planetary gear assembly;

[0065] ​431, planet wheel; 432, planet carrier; 433, second drive shaft;

[0066] 600, first support bearing;

[0067] 700, spacer pad;

[0068] 800, detection device;

[0069] 810, magnetic ring;

[0070] 820, Hall assembly; 821, Hall plate; 822, Hall element. DETAILED DESCRIPTION

[0071] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for the purpose of explaining the present application, and cannot be understood as a limitation of the present application.

[0072] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "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 present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 a limitation of the present application.

[0073] The driving device 1000 for the stirring equipment according to the embodiments of the present application is described below with reference to the drawings of the specification.

[0074] In combination with the drawings shown in Figure 1 , Figure 2 and Figure 3 , the driving device 1000 for the stirring equipment according to the embodiments of the present application comprises a housing 100, a drive assembly 900 and a planetary gear assembly 400.

[0075] As shown in Figure 1 , the housing 100 has a first chamber 150 and a second chamber 160 arranged axially along it.

[0076] As shown in Figure 1As shown, the driving assembly 900 is arranged in the first chamber 150 and comprises a first driving shaft 310 extending out of the first chamber 150, the first driving shaft 310 being adapted to cooperate with the stirring member. In this way, the stirring member can be driven to rotate by the first driving shaft 310, so as to realize stirring of the stirring member on the to-be-stirred substance, thereby reducing the control difficulty of the stirring member.

[0077] Meanwhile, by arranging the driving assembly 900 in the first chamber 150, the compact arrangement of the driving device 1000 is realized, and meanwhile, the driving assembly 900 can be supported and protected by the shell 100, so as to improve the position stability of the driving assembly 900 and facilitate prolonging the service life of the driving assembly 900.

[0078] In some embodiments, an end of the first driving shaft 310 is provided with a first connecting portion, the first connecting portion being used for detachable connection with the stirring member. In this way, the cooperation between the first driving shaft 310 and the stirring member is facilitated, and meanwhile, the first driving shaft 310 can be cooperated with different types, thereby facilitating enriching the functions of the stirring device and improving the user experience.

[0079] Here, the first connecting portion can be a thread, a clamping groove or the like.

[0080] As shown, Figure 1 The planetary gear assembly 400 is arranged in the second chamber 160 and comprises a second driving shaft 433 extending out of the second chamber 160, the second driving shaft 433 being adapted to cooperate with the stirring member. In this way, the stirring member can be driven to rotate by the second driving shaft 433, so as to realize stirring of the stirring member on the to-be-stirred substance, thereby further reducing the control difficulty of the stirring member.

[0081] Meanwhile, by arranging the planetary gear assembly 400 in the second chamber 160, the compact arrangement of the driving device 1000 is realized, and meanwhile, the planetary gear assembly 400 can be supported and protected by the shell 100, so as to improve the position stability of the planetary gear assembly 400 and facilitate prolonging the service life of the planetary gear assembly 400.

[0082] That is, the application has two drive shafts (the first drive shaft 310 and the second drive shaft 433), the first drive shaft 310 cooperates with the rotor assembly 200, so that the first drive shaft 310 is directly driven by the rotor assembly 200 to output power, so that by driving control of the rotor assembly 200, higher and wider speed output can be realized, so as to increase the rotation speed of the stirring member connected to the first drive shaft 310, so that when the stirring member connected to the first drive shaft 310 is used to process food, high-speed processing of food can be realized, so as to facilitate grinding, meat grinding and other working conditions; the second drive shaft 433 cooperates with the planetary gear assembly 400, the planetary gear assembly 400 is used to reduce the speed and increase the output torque, so that the low-speed large-torque output of the driving device 1000 can be realized under the premise of ensuring the occupied space and low cost of the driving device 1000, at this time, when the stirring member connected to the second drive shaft 433 is used to process food, the stirring member connected to the second drive shaft 433 is used to knead dough and other working conditions.

[0083] Among them, in the process of kneading dough, the driving device 1000 needs to output 20Nm-40Nm torque.

[0084] At the same time, by improving the machining precision and surface quality of the planetary gear assembly 400, the running noise of the planetary gear assembly 400 can also be reduced, thereby reducing the running noise of the driving device 1000, so that the driving device 1000 can not only output larger torque, but also has the advantages of small occupied space, low cost and small noise.

[0085] In addition, the driving assembly 900 is arranged in the first chamber 150 and the planetary gear assembly 400 is arranged in the second chamber 160, which is beneficial to limiting the installation position and volume of the driving assembly 900 and the planetary gear assembly 400 by using the first chamber 150 and the second chamber 160, facilitating the compact and miniaturized arrangement of the driving device 1000, reducing the occupied space of the driving device 1000, and reducing the arrangement difficulty of the driving device 1000.

[0086] In some embodiments, as shown in Figure 1 The shell 100 includes a housing 120 and first and second end covers 130 and 140 arranged on both axial sides of the housing 120. In the axial direction of the shell 100, at least part of the first end cover 130 is spaced apart from the housing 120 to form a first chamber 150, and at least part of the second end cover 140 is spaced apart from the housing 120 to form a second chamber 160. The forming difficulty of the first and second chambers 150 and 160 is reduced, thereby reducing the installation difficulty of the driving assembly 900 and the planetary gear assembly 400, and facilitating the compact and miniaturized arrangement of the driving device 1000.

[0087] In summary, the outer shell 100 comprises the housing 120, the first end cover 130 and the second end cover 140, the first end cover 130, the housing 120 and the second end cover 140 are arranged in sequence in the axial direction of the rotor assembly 200, the rotor assembly 200 is arranged between the housing 120 and the first end cover 130, and at least part of the planetary gear assembly 400 is arranged between the housing 120 and the second end cover 140, so as to realize that the rotor assembly 200 and at least part of the planetary gear assembly 400 are arranged in the outer shell 100, and the axial ends of the first driving shaft 310 can be supported to ensure the working performance of the first driving shaft 310.

[0088] In some embodiments, in combination with Figure 1 and Figure 2 As shown in the figures, the housing 120 and the second end cover 140 are fixedly connected. So that the housing 120 and the second end cover 140 can support each other, thereby improving the positional stability of the housing 120 and the second end cover 140, and ensuring the performance of the housing 120 and the second end cover 140.

[0089] Here, the fixed connection can be screw connection, welding, bonding or clamping, etc.

[0090] In a specific example, the housing 120 and the second end cover 140 are fixedly connected by screws, which can ensure the connection strength of the housing 120 and the second end cover 140, and also make the housing 120 and the second end cover 140 form a detachable connection, thereby reducing the difficulty of assembling and disassembling the housing 120 and the second end cover 140, and improving the assembly efficiency of the planetary gear assembly 400.

[0091] In some embodiments, the maximum outer diameter of the outer shell 100 is 85mm-110mm. Here, the maximum outer diameter of the outer shell 100 can be understood as D1 shown in the figure. Figure 1 The above setting can make the outer shell 100 have a certain accommodation space, while avoiding the large volume of the outer shell 100, reducing the installation difficulty of the drive assembly 900 and the planetary gear assembly 400, and facilitating the compact and small size setting of the drive device 1000.

[0092] In some embodiments, the maximum outer diameter of the outer shell 100 is 85mm, 86mm, 87mm, 88mm, 89mm, 90mm, 91mm, 92mm, 93mm, 94mm, 95mm, 96mm, 97mm, 98mm, 99mm, 100mm, 101mm, 102mm, 103mm, 104mm, 105mm, 106mm, 107mm, 108mm, 109mm or 110mm, etc.

[0093] In some embodiments, the maximum outer diameter of the housing 100 is 90mm-100mm. Further optimizing the size of the housing 100, while making the housing 100 have a certain accommodation space, can also avoid the housing 100 being too large in volume.

[0094] In some embodiments, the maximum height of the housing 100 is 55mm-80mm. Here, the maximum height of the housing 100 can be understood as the H shown in FIG. 1, by setting the housing 100 to have a certain accommodation space, while also avoiding the housing 100 being too large in volume, reducing the difficulty of installing the drive assembly 900 and the planetary gear assembly 400, and facilitating the compact and small size setting of the drive device 1000. Figure 1 In some embodiments, the maximum height of the housing 100 is 55mm-80mm. Here, the maximum height of the housing 100 can be understood as the H shown in FIG. 1, by setting the housing 100 to have a certain accommodation space, while also avoiding the housing 100 being too large in volume, reducing the difficulty of installing the drive assembly 900 and the planetary gear assembly 400, and facilitating the compact and small size setting of the drive device 1000.

[0095] In some embodiments, the maximum height of the housing 100 is 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 71mm, 72mm, 73mm, 74mm, 75mm, 76mm, 77mm, 78mm, 79mm, or 80mm, etc.

[0096] In some embodiments, the maximum height of the housing 100 is 60mm-75mm. Further optimizing the size of the housing 100, while making the housing 100 have a certain accommodation space, can also avoid the housing 100 being too large in volume.

[0097] In some embodiments, in combination with the descriptions shown in Figure 1 and Figure 7 As shown in FIGS. 1-2, the drive device 1000 further includes a rotor assembly 200 and a stator assembly 500 coupled together, at least one of the rotor assembly 200 and the stator assembly 500 is fixed to the housing 120 and / or the first end cover 130, and the rotor assembly 200 is coupled with the first drive shaft 310 to drive the first drive shaft 310 to rotate. The first drive shaft 310 is directly driven by the rotor assembly 200 to output power, so that through the driving control of the rotor assembly 200, a higher and wider rotating speed can be output, thereby increasing the rotating speed of the stirring member connected to the first drive shaft 310, so that when the food is processed by the stirring member connected to the first drive shaft 310, high-speed processing of the food can be realized, thereby facilitating grinding, meat twisting, and other working conditions.

[0098] It should be noted that the coupling of the stator assembly 500 and the rotor assembly 200 means that the stator assembly 500 and the rotor assembly 200 can interact with each other and influence each other, so as to facilitate the control of the reciprocating rotation of the rotor assembly 200, so as to reduce the control difficulty of the rotor assembly 200, so as to realize the control of the reciprocating rotation of the first driving shaft 310, so as to ensure the control difficulty of the first driving shaft 310, and ensure the working performance of the first driving shaft 310.

[0099] In some embodiments, as shown in Figure 1 , the rotor assembly 200 includes a rotor core 210 and a permanent magnet, and the stator assembly 500 includes a stator core 510 and a stator winding. The stator winding and the permanent magnet cooperate to form a magnetic coupling between the stator assembly 500 and the rotor assembly 200, so that the stator assembly 500 and the rotor assembly 200 are reliably connected by a magnetic field, so as to facilitate the control of the reciprocating rotation of the rotor assembly 200, and reduce the rotation difficulty of the rotor assembly 200.

[0100] Among them, part of the structure of the rotor assembly 200 and the stator assembly 500 can also be seen from Figure 9 and Figure 10 .

[0101] In a specific example, the stator winding is supplied with three-phase alternating current to generate a rotating magnetic field, thereby realizing the driving of the reciprocating rotation of the rotor assembly 200.

[0102] In some embodiments, as shown in Figure 1 , the rotor assembly 200 is located in the shell 100, and the first driving shaft 310 is matched with the rotor assembly 200 to rotate synchronously. One end of the first driving shaft 310 extends out of the shell 100, and the first driving shaft 310 extending out of the shell 100 is adapted to cooperate with the stirring member. Here, it means that the rotor assembly 200 drives the extension out of the shell 100 to rotate synchronously in the process of rotation. Because one end of the extension out of the shell 100 extends out of the shell 100 and cooperates with the stirring member, it can be realized that the stirring member is driven by the rotor assembly 200, so as to facilitate the stirring of the stirring member, thereby reducing the control difficulty of the stirring member.

[0103] In some embodiments, as shown in Figure 1 and Figure 2 , the rotor assembly 200 is sleeved on the outer periphery of the first driving shaft 310 and is fixedly matched with the first driving shaft 310, so that the rotor assembly 200 can effectively drive the first driving shaft 310 to rotate synchronously in the process of rotation, so as to facilitate the driving of the stirring member by the first driving shaft 310, and reduce the operation difficulty of the stirring member.

[0104] In some embodiments, in combination with Figure 1 , Figure 3 and Figure 4As shown, the planetary gear assembly 400 comprises a sun gear 410, an inner ring gear 420 and a planetary gear assembly 430, the sun gear 410 is matched with the rotor assembly 200, the inner ring gear 420 is fixed to the circumferential inner side of the second end cover 140 and / or the shell 120, and the planetary gear assembly 430 comprises a plurality of planetary gears 431, a planetary carrier 432 and a second drive shaft 433 (the structure of the planetary gears 431 can also be referred to Figure 5 ), the plurality of planetary gears 431 and the second drive shaft 433 are respectively arranged in the planetary carrier 432, and the plurality of planetary gears 431 are respectively engaged with the sun gear 410 and the inner ring gear 420. Through the above arrangement, when it is needed to drive the stirring member to rotate by using the second drive shaft 433, the rotor assembly 200 is controlled to rotate, the rotor assembly 200 drives the sun gear 410 to rotate synchronously, the sun gear 410 drives the plurality of planetary gears 431 to rotate relative to the inner ring gear 420 in the process of rotating, and the plurality of planetary gears 431 drive the planetary carrier 432 to rotate, so as to realize the transmission of the rotating force to the second drive shaft 433, thereby realizing the transmission of the power by using the second drive shaft 433, achieving the purpose of driving the stirring member to rotate by using the second drive shaft 433, and ensuring the working performance of the driving device 1000.

[0105] It is worth noting that in the process of operation of the driving device 1000, the first drive shaft 310 and the second drive shaft 433 rotate at the same time, but the stirring member can be selected to be installed on the first drive shaft 310 or the second drive shaft 433 according to needs.

[0106] Among them, by fixing the inner ring gear 420 to the circumferential inner side of the second end cover 140 and / or the shell 120, the outer shell 100 can be used to support the inner ring gear 420, the positional stability of the inner ring gear 420 is improved, and the working performance of the inner ring gear 420 is ensured.

[0107] In some embodiments, the sun gear 410 is connected to one end of the first drive shaft 310 towards the planetary gear assembly 430, so as to realize the matching of the sun gear 410 with the rotor assembly 200, so that when the rotor assembly 200 reciprocatingly rotates, the sun gear 410 can be driven to rotate by using the first drive shaft 310, and the functional performance of the planetary gear assembly 400 is ensured.

[0108] Of course, in other embodiments, a plurality of teeth can also be directly arranged on the outer circumferential wall of one end of the first drive shaft 310 towards the planetary gear assembly 430 to form the sun gear 410, so as to reduce the connection difficulty of the sun gear 410 with the first drive shaft 310, ensure the connection strength of the sun gear 410 with the first drive shaft 310, and ensure that the sun gear 410 can be effectively driven to rotate by using the first drive shaft 310.

[0109] From the above structure, the driving device 1000 for the stirring equipment of the embodiment of the utility model, through the drive shaft (first drive shaft 310 and second drive shaft 433) of cooperation with rotor assembly 200 respectively, and the first drive shaft 310 is set to be directly connected with rotor assembly 200 and the second drive shaft 433 is set to be connected with rotor assembly 200 through planetary gear assembly 400, so that higher and wider rotational speed can be output by the first drive shaft 310 and larger torque can be output by the second drive shaft 433, so that multiple power can be output by one driving device 1000 to meet different functional requirements.

[0110] At the same time, the planetary gear assembly 400 is used to output larger torque, which is also helpful to reduce the volume of the driving device 1000 and reduce the cost of the driving device 1000, so as to ensure the working performance of the driving device 1000, and the machining precision and surface quality of the planetary gear assembly 400 can be improved to reduce the running noise of the planetary gear assembly 400, so that the driving device 1000 of the application not only can output larger torque, but also has the advantages of small space occupation, low cost and low noise.

[0111] That is, the driving device 1000 of the application adopts the form of rotor assembly 200 and planetary gear assembly 400 to realize the larger torque output of the driving device 1000, so that the driving device 1000 outputs large torque and stable speed.

[0112] It can be understood that, compared with the prior art, the planetary gear assembly 400 is combined with the rotor assembly 200, and the first drive shaft 310 directly connected to the rotor assembly 200 and the second drive shaft 433 directly connected to the planetary gear assembly 400 are arranged respectively to realize the dual-shaft output of the driving device 1000, so that multiple power can be output by one driving device 1000, and the driving device 1000 can output larger torque, so that the driving device 1000 not only can output larger torque, but also has the advantages of small space occupation, low cost and low noise.

[0113] In the description of the utility model, the features limited by "first" and "second" can include one or more of the features explicitly or implicitly, for distinguishing the description features, without order and without difference.

[0114] In some embodiments, the inner gear ring 420 is fixedly connected with the housing 120 to fix the inner gear ring 420 to the outer shell 100, so as to support the inner gear ring 420 by the outer shell 100 and improve the position stability of the inner gear ring 420 to ensure the working performance of the inner gear ring 420.

[0115] The fixed connection mentioned here can be an interference fit (fastening the internal gear ring 420 to the inside of the housing 120) or an adhesive fit, etc.

[0116] In some embodiments, multiple planetary gears 431 and a second drive shaft 433 are fixedly connected to a planetary support 432. When multiple planetary gears 431 rotate, they can drive the planetary support 432 to rotate, thereby enabling the planetary support 432 to drive the second drive shaft 433 to rotate, thus ensuring the working performance of the second drive shaft 433.

[0117] In some embodiments, such as Figure 1 As shown, the first drive shaft 310 and the second drive shaft 433 are coaxially arranged. This allows the same rotor assembly 200 to drive the first drive shaft 310 and the second drive shaft 433 to rotate, ensuring the rotational performance of the first drive shaft 310 and the second drive shaft 433. To a certain extent, this prevents the first drive shaft 310 and the second drive shaft 433 from shifting during rotation, thereby enabling the first drive shaft 310 and the second drive shaft 433 to effectively drive the agitator to rotate, thus ensuring the working performance of the agitator.

[0118] In some embodiments, the reduction ratio of the planetary gear assembly 400 is i, where i satisfies 6 ≤ i ≤ 12. When i is small, to achieve the same output torque, the torque output of the drive device 1000 needs to be made larger, thus increasing the size of the drive device 1000 and its cost. When i is large, although the torque output of the planetary gear assembly 400 can be increased and the output power of the drive device 1000 itself can be reduced, it also increases the friction of the planetary gear assembly 400 and the noise generated by the planetary gear assembly 400 during operation.

[0119] Therefore, this application sets the reduction ratio i of the planetary gear assembly 400 to satisfy 6≤i≤12. While ensuring that the drive device 1000 can output a large torque, it is also conducive to realizing the miniaturization design of the drive device 1000, and can reduce the size of the drive device 1000 and the noise generated by the drive device 1000 during operation, thereby improving the user experience.

[0120] In other words, the drive device 1000 of this application can not only output a large torque, but also has the advantages of small space occupation, low cost and low noise.

[0121] In specific examples, the reduction ratio i of the planetary gear assembly 400 is 6, 7, 8, 9, 10, 11 or 12, etc.

[0122] In some embodiments, the gear modulus m of at least one of the sun gear 410, the planet gears 431 and the ring gear 420 satisfies: 0.6≤m≤1.25. Wherein, when the modulus is smaller, the corresponding tooth thickness is thinner, the gear strength is weakened, and the small modulus can cause the processing difficulty to increase and the cost to increase; when the modulus is larger, the diameter of the division circle of the corresponding gear increases, the outer diameter of the gear increases, the volume of the planetary gear assembly 400 increases, which is not conducive to the miniaturization of the driving device 1000, and further affects the installation of the driving device 1000.

[0123] At the same time, for the sun gear 410, when the modulus is larger, the outer diameter of the sun gear 410 increases, and since the sun gear 410 is formed on the first driving shaft 310, a stepped shaft needs to be machined on the first driving shaft 310, which increases the manufacturing difficulty and processing cost of the first driving shaft 310.

[0124] Therefore, the gear modulus m of at least one of the sun gear 410, the planet gears 431 and the ring gear 420 is set to satisfy: 0.6≤m≤1.25, which reduces the processing difficulty and processing cost of the planetary gear assembly 400, and is also conducive to the miniaturization of the planetary gear assembly 400, so that the driving device 1000 has the advantage of small size.

[0125] In specific examples, the gear modulus m is 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2 or 1.25, etc.

[0126] In some embodiments, the diameter da1 of the addendum circle of the sun gear 410 satisfies: 8mm≤da1≤15mm. Wherein, when da1 is smaller, the strength of the sun gear 410 is weakened, and the service life is insufficient; when da1 is larger, since the sun gear 410 is formed on the first driving shaft 310, a stepped shaft needs to be machined on the first driving shaft 310, which increases the manufacturing difficulty and processing cost of the first driving shaft 310.

[0127] Therefore, the diameter da1 of the addendum circle of the sun gear 410 is set to satisfy: 8mm≤da1≤15mm, which ensures the structural strength of the sun gear 410, prolongs the service life of the sun gear 410, and also reduces the manufacturing difficulty and processing cost of the first driving shaft 310.

[0128] In specific examples, the diameter da1 of the addendum circle of the sun gear 410 is 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm or 15mm.

[0129] In some embodiments, as Figure 6As shown, the pitch circle of the sun gear 410 is set as d1, the addendum circle is da1, the dedendum circle is df1, the tooth height is h1, the addendum height is ha1, the dedendum height is hf1, and the modulus is m, so d1 = m * Z1, Z1 is the number of teeth of the sun gear 410, da1 = d1 + 2 * ha1, that is, da1 = m * Z1 + 2 * ha1. Through design and test verification, the design da1 satisfies: 8mm≤da1≤15mm, so as to effectively ensure the structural strength of the sun gear 410, prolong the service life of the sun gear 410, and reduce the manufacturing difficulty and processing cost of the first driving shaft 310.

[0130] In some embodiments, in combination with Figure 1 and Figure 7 As shown, the stator assembly 500 includes a stator core 510, the outer diameter of the stator core 510 is D, the diameter of the dedendum circle of the inner tooth ring 420 is df3, and the driving device 1000 satisfies: 0.7≤df3 / D≤0.9. When df3 / D is small, the radial space of the planetary gear assembly 400 is wasted; when df3 / D is small, the yoke of the inner tooth ring 420 is thinned, which affects the structural strength of the inner tooth ring 420, thereby shortening the service life of the inner tooth ring 420, or increasing the radial size of the planetary gear assembly 400, thereby increasing the volume of the planetary gear assembly 400, causing the driving device 1000 to require more installation space, which is not conducive to the miniaturization of the driving device 1000, and increases the installation difficulty of the driving device 1000.

[0131] Therefore, the outer diameter D of the stator core 510 and the diameter df3 of the dedendum circle of the inner tooth ring 420 are set to satisfy: 0.7≤df3 / D≤0.9, which avoids the waste of the radial space of the planetary gear assembly 400, while ensuring the structural strength of the inner tooth ring 420, facilitating the miniaturization of the driving device 1000, and reducing the installation difficulty of the driving device 1000.

[0132] In specific examples, df3 / D is 0.7, 0.71, 0.72, 0.73, 0.74, 0.75, 0.76, 0.77, 0.78, 0.79, 0.8, 0.81, 0.82, 0.83, 0.84, 0.85, 0.86, 0.87, 0.88, 0.89 or 0.9, etc.

[0133] In some embodiments, as Figure 8As shown, the pitch circle of the inner ring 420 is d3, the addendum circle is da3, the dedendum circle is df3, the tooth height is h3, the addendum height is ha3, the dedendum height is hf3, and the modulus is m, so d3 = m * Z3, Z3 is the number of teeth of the inner ring 420, df3 = d3 + 2 * h3, that is, df3 = m * Z3 + 2 * h3. Through design and test verification, df3 / D satisfies: 0.7 ≤ df3 / D ≤ 0.9, so as to avoid the waste of the radial space of the planetary gear assembly 400 to a certain extent, while ensuring the structural strength of the inner ring 420, and realizing the miniaturization of the driving device 1000 and reducing the installation difficulty of the driving device 1000.

[0134] In some embodiments, as shown in FIG. 4, the planetary gear assembly 400 is a multi-stage planetary gear assembly 400. Figure 11 As shown, the planetary gear assembly 400 is a multi-stage planetary gear assembly 400. The cooperation of the multi-stage planetary gear assembly 400 can enable the driving device 1000 to output greater torque, thereby realizing the working performance of the driving device 1000 while ensuring the volume of the driving device 1000.

[0135] In some embodiments, the number of stages K of the multi-stage planetary gear assembly 400 is less than or equal to 3. That is, the planetary gear assembly 400 can be a two-stage planetary gear assembly 400 or a three-stage planetary gear assembly 400, wherein more stages of the planetary gear assembly 400 will increase the parts of the planetary gear assembly 400 and increase the assembly difficulty of the planetary gear assembly 400, and cause the planetary gear assembly 400 to easily produce noise during operation.

[0136] Therefore, the number of stages K of the multi-stage planetary gear assembly 400 is set to be less than or equal to 3, which can ensure that the driving device 1000 can output greater torque, while reducing the assembly difficulty of the planetary gear assembly 400 and reducing the noise generated by the planetary gear assembly 400 during operation, and improving the user experience.

[0137] It should be noted that, Figure 11 As shown in FIG. 4, the planetary gear assembly 400 is a two-stage planetary gear assembly 400 as an example, and in other embodiments, the planetary gear assembly 400 can also be a three-stage planetary gear assembly 400.

[0138] In some embodiments, as shown in FIG. 4, the planetary gear assembly 400 is a multi-stage planetary gear assembly 400. The cooperation of the multi-stage planetary gear assembly 400 can enable the driving device 1000 to output greater torque, thereby realizing the working performance of the driving device 1000 while ensuring the volume of the driving device 1000. Figure 11 As shown, the planetary gear assembly 400 is a multi-stage planetary gear assembly 400. The cooperation of the multi-stage planetary gear assembly 400 can enable the driving device 1000 to output greater torque, thereby realizing the working performance of the driving device 1000 while ensuring the volume of the driving device 1000.

[0139] In some embodiments, as shown in FIG. 4, the planetary gear assembly 400 is a multi-stage planetary gear assembly 400. The cooperation of the multi-stage planetary gear assembly 400 can enable the driving device 1000 to output greater torque, thereby realizing the working performance of the driving device 1000 while ensuring the volume of the driving device 1000. Figure 1As shown, at least one first supporting bearing 600 is arranged between the second driving shaft 433 and the housing 100. Here, it is referred to that one first supporting bearing 600 or multiple first supporting bearings 600 can be arranged between the second driving shaft 433 and the housing 100, so as to support the second driving shaft 433 by the first supporting bearing 600, on the one hand, to enable the second driving shaft 433 to rotate relative to the housing 100 effectively, so as to ensure the working performance of the second driving shaft 433, and on the other hand, to avoid the second driving shaft 433 from being deflected and cantilevered after being pressed reversely by the processed object (for example, food), so as to ensure the service life of the driving device 1000.

[0140] In some embodiments, the first supporting bearing 600 is arranged between the second driving shaft 433 and the housing 100. Figure 1 and Figure 3 As shown, the first supporting bearing 600 is multiple, and a spacing gasket 700 is arranged between adjacent first supporting bearings 600. Here, by arranging multiple first supporting bearings 600, the position stability and rotation performance of the second driving shaft 433 can be ensured maximally by the multiple first supporting bearings 600.

[0141] Meanwhile, by arranging the spacing gasket 700 between adjacent first supporting bearings 600, the adjacent two first supporting bearings 600 are spaced apart, so as to avoid the collision of the adjacent first supporting bearings 600 to some extent, thereby prolonging the service life of the first supporting bearing 600, reducing the use cost of the first supporting bearing 600, and avoiding the noise generated by the collision of the adjacent first supporting bearings 600 to some extent, thereby reducing the noise generated by the planetary gear assembly 400 during operation.

[0142] In some embodiments, the spacing gasket 700 is formed as a rubber gasket, so as to ensure the working performance of the spacing gasket 700.

[0143] In some embodiments, the thickness of the spacing gasket 700 is 0.3mm-1mm. While ensuring the working performance of the spacing gasket 700, the occupied space of the spacing gasket 700 can be reduced, and the manufacturing cost of the spacing gasket 700 can be reduced, so that the driving device 1000 has the advantages of small size and low cost.

[0144] In a specific example, the first supporting bearing 600 is two, and the two first supporting bearings 600 are arranged in cooperation, so as to support the second driving shaft 433 while reducing the use cost of the first supporting bearing 600. Figure 1 and Figure 3 As shown, the first supporting bearing 600 is two, and the two first supporting bearings 600 are arranged in cooperation, so as to support the second driving shaft 433 while reducing the use cost of the first supporting bearing 600.

[0145] Optionally, the first supporting bearing 600 is two, and the two first supporting bearings 600 are arranged in cooperation, so as to support the second driving shaft 433 while reducing the use cost of the first supporting bearing 600. Figure 1 and Figure 3As shown, a spacing washer 700 is arranged between the first support bearing 600 and the planet carrier 432, close to the planet carrier 432, so as to avoid collision between the first support bearing 600 and the planet carrier 432 to some extent, thereby prolonging the service life of the first support bearing 600 and the planet carrier 432, and avoiding noise caused by collision to some extent, so as to reduce the noise generated by the planetary gear assembly 400 during operation.

[0146] In some embodiments, in combination with Figure 1 and Figure 2 As shown, the rotor assembly 200 includes a second support bearing 220, and the axial ends of the first driving shaft 310 extend towards the first end cover 130 and the housing 120 respectively and are rotatably connected with the first end cover 130 and the housing 120 through the second support bearing 220, so that the first driving shaft 310 can be effectively rotated while being supported by the first end cover 130 and the housing 120, thereby ensuring the working performance of the first driving shaft 310.

[0147] In some embodiments, in combination with Figure 1 , Figure 12 and Figure 13 As shown, the driving device 1000 further includes a control module and a detection device 800, the detection device 800 is configured to detect the operating state of the rotor assembly 200, and the control module is electrically connected with the detection device 800 to control the input current of the driving device 1000 according to the detection result of the detection device 800, so that the driving device 1000 can output stable rotating speed, thereby ensuring the working performance of the driving device 1000.

[0148] In a specific example, during the working process of the driving device 1000, the detection device 800 detects the operating state of the rotor assembly 200, after the detection is completed, the detection device 800 transmits the detection result to the control module, and the control module controls the input current of the driving device 1000 according to the received result, so as to control the rotating speed of the driving device 1000, so that the driving device 1000 can output stable rotating speed, thereby ensuring the working performance of the driving device 1000.

[0149] In some embodiments, in combination with Figure 12- Figure 16As shown, the detection device 800 comprises a magnetic ring 810 and a Hall component 820, the magnetic ring 810 is sleeved on the first driving shaft 310, and the Hall component 820 is arranged on the shell 100 and is used to sense the magnetic field change of the magnetic ring 810. Wherein, by sleeving the magnetic ring 810 on the first driving shaft 310, it can be ensured that the magnetic ring 810 can rotate synchronously according to the first driving shaft 310, so that when the Hall component 820 senses the magnetic field change of the magnetic ring 810, the position of the rotor assembly 200 can be perceived, and then the rotor assembly 200 can be conveniently controlled independently, so that the driving device 1000 can output stable rotating speed.

[0150] Wherein, the control of the rotor assembly 200 here can be the control of the steering and / or rotating speed of the rotor assembly 200.

[0151] Meanwhile, by arranging the Hall component 820 on the shell 100, the Hall component 820 can be supported by the shell 100, so as to improve the position stability of the Hall component 820, and then the working performance of the Hall component 820 is ensured, so as to improve the detection accuracy of the detection device 800.

[0152] In a specific example, the rotor assembly 200 and the stator assembly 500 are designed as an m-slot 2p-pole scheme, the detection device 800 comprises a magnetic ring 810 and a Hall component 820, the Hall component 820 is fixed on the first end cover 130, and the magnetic ring 810 is fixed on the first driving shaft 310. When the rotor assembly 200 rotates, the magnetic ring 810 rotates synchronously, the Hall component 820 senses the magnetic field change of the magnetic ring 810, the detection device 800 cooperates with the angle speed feedback of the Hall component 820, the PI (proportion-integral) parameters of the rotating speed ring and the current ring are adjusted reasonably to realize the stable output of the rotating speed of the driving device 1000, so as to ensure the working performance of the driving device 1000.

[0153] In some embodiments, in combination with Figure 14 , Figure 15 and Figure 16 As shown, the magnetic ring 810 is designed as an N / S ring alternation structure, the pole pair number of the magnetic ring 810 is pc, and pc=p or 1, wherein, Figure 14 A schematic of the pole pair number pc=5 of the magnetic ring 810 is shown, Figure 15 A schematic of the pole pair number pc=1 of the magnetic ring 810 is shown; the Hall component 820 comprises a Hall plate 821 and two Hall elements 822, and the included angle between the two Hall elements 822 is θ, wherein θ=(90+180*N) / pc, N=0, 1, 2, ……, so as to ensure the detection effect and accuracy of the Hall component 820, and thus the working performance of the driving device 1000 is ensured.

[0154] In some embodiments, in combination with Figure 1、 Figure 13 and Figure 17 As shown in

[0155] In some embodiments, in combination with Figure 12 、 Figure 13 and Figure 17 As shown in

[0156] In some embodiments, as shown in Figure 12 The protection piece 110 is formed in a half-open structure to facilitate the installation of the Hall component 820.

[0157] In some embodiments, the protection piece 110 is integrally formed on the first end cover 130. In this way, the protection piece 110 is arranged on the shell 100, and the connection strength between the protection piece 110 and the shell 100 is ensured, so that the relative position between the protection piece 110 and the shell 100 is stable, and the working performance of the protection piece 110 is ensured.

[0158] Of course, in other embodiments, the protection piece 110 can be connected to the first end cover 130 by welding, bonding or other connection methods, so as to be fixedly connected to the shell 100.

[0159] In some embodiments, as shown in Figure 17 The minimum distance between the end face of the protection piece 110 protruding from the magnetic ring 810 and the magnetic ring 810 is L, where 0.5mm≤L≤5mm. When L is small, due to the assembly error of the driving device 1000, the protection piece 110 cannot completely protect the magnetic ring 810, which affects the performance of the protection piece 110 and shortens the service life of the protection piece 110. When L is large, although the magnetic ring 810 can be better protected, the overall height of the driving device 1000 is increased, which is not conducive to the miniaturization design of the driving device 1000, and the manufacturing cost of the driving device 1000 is also increased.

[0160] Therefore, the present application sets the minimum distance L between the end face of the protection piece 110 protruding from the magnetic ring 810 and the magnetic ring 810 to satisfy 0.5mm≤L≤5mm, which not only ensures that the protection piece 110 can better protect the magnetic ring 810, but also facilitates the miniaturization design of the driving device 1000 and reduces the manufacturing cost of the driving device 1000.

[0161] In specific examples, the minimum distance L between the end face of the protection piece 110 protruding from the magnetic ring 810 and the magnetic ring 810 is 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm, etc.

[0162] The stirring equipment of the embodiments of the present application is described below.

[0163] The stirring equipment according to the embodiments of the present application comprises a driving device 1000 and a stirring piece.

[0164] Among them, the driving device 1000 is the aforementioned driving device 1000, and the specific structure of the driving device 1000 is not described here. The first driving shaft 310 and / or the second driving shaft 433 are provided with a stirring piece. Here, it means that one of the first driving shaft 310 and the second driving shaft 433 can be provided with a stirring piece, or both the first driving shaft 310 and the second driving shaft 433 can be provided with a stirring piece.

[0165] Among them, the stirring piece can be of various types, and the first driving shaft 310 corresponds to at least one type, and the second driving shaft 433 corresponds to at least one type, so as to drive different types of stirring pieces by the first driving shaft 310 and the second driving shaft 433 respectively, thereby enabling the stirring equipment to realize different functions and ensuring the working performance of the stirring equipment.

[0166] As can be seen from the above structure, the stirring equipment of the embodiments of the present application, by adopting the aforementioned driving device 1000, can have the advantages of small occupied space, low cost, excellent stirring performance, and small noise, etc., thereby improving the user experience.

[0167] In some embodiments, the stirring equipment is a chef machine or a dough kneader. Among them, the chef machine has the functions of kneading dough, beating eggs, stirring, juicing and grinding, etc., and the dough kneader mainly has the function of kneading dough. By setting the chef machine or the dough kneader to adopt the aforementioned driving device 1000, the working performance of the chef machine or the dough kneader can be effectively improved. Since when the chef machine adopts the aforementioned driving device 1000, different driving shafts (first driving shaft 310 or second driving shaft 433) can be used according to different functions of the chef machine, it ensures that the chef machine can output different torques when running different functions, thereby ensuring the performance of the chef machine and improving the user experience.

[0168] The stirring device of the present application will be described in detail below with reference to the accompanying drawings of the specification. The stirring device herein can be a chef machine or a dough kneader.

[0169] The stirring device comprises a driving device 1000 and a stirring member, as shown in Figure 1 、 Figure 2 and Figure 3 The driving device 1000 comprises a housing 100, a rotor assembly 200, a first driving shaft 310, a second driving shaft 433, a planetary gear assembly 400, a stator assembly 500, a control module and a detection device 800.

[0170] The rotor assembly 200 is located in the housing 100, and the stator assembly 500 comprises a stator core 510 with an outer diameter D, as shown in Figure 1 and Figure 7 The stator assembly 500 is coupled with the rotor assembly 200, the first driving shaft 310 is coupled with the rotor assembly 200 to rotate synchronously, one end of the first driving shaft 310 extends out of the housing 100 to define the first driving shaft 310, and the first driving shaft 310 is adapted to be coupled with the stirring member.

[0171] The reduction ratio i of the planetary gear assembly 400 satisfies 6≤i≤12, as shown in Figure 1 、 Figure 2 and Figure 3 The planetary gear assembly 400 comprises a sun gear 410, an inner ring gear 420 and a planetary gear assembly 430, the sun gear 410 is coupled with the rotor assembly 200, the diameter da1 of the addendum circle of the sun gear 410 satisfies 8mm≤da1≤15mm, the inner ring gear 420 is fixed to the housing 100, the diameter df3 of the dedendum circle of the inner ring gear 420 satisfies 0.7≤df3 / D≤0.9, the planetary gear assembly 430 comprises three planetary gears 431, a planetary carrier 432 and the second driving shaft 433, the three planetary gears 431 and the second driving shaft 433 are respectively arranged on the planetary carrier 432, the three planetary gears 431 are respectively engaged with the sun gear 410 and the inner ring gear 420, and the gear modulus m of the sun gear 410, the planetary gears 431 and the inner ring gear 420 satisfies 0.6≤m≤1.25.

[0172] The second driving shaft 433 and the first driving shaft 310 are coaxially arranged, as shown in Figure 1 The second driving shaft 433 extends out of the housing 100 to be adapted to be coupled with the stirring member, two first support bearings 600 are arranged between the second driving shaft 433 and the housing 100, and a spacing spacer 700 is arranged between adjacent first support bearings 600.

[0173] The planetary gear assembly 400 comprises a sun gear 410, an inner ring gear 420 and a planetary gear assembly 430, as shown in Figure 1 、 Figure 12 and Figure 13As shown in the figure, the detection device 800 comprises a magnetic ring 810 and a Hall component 820, the magnetic ring 810 is sleeved on the first driving shaft 310 and is located on the part of the first driving shaft 310 extending out of the shell 100, the Hall component 820 is arranged in the shell 100 and is used for sensing the magnetic field change of the magnetic ring 810 to realize the detection of the running state of the rotor assembly 200, and the control module is electrically connected with the detection device 800 to control the input current of the driving device 1000 according to the detection result of the detection device 800.

[0174] In combination with Figure 1 、 Figure 12 and Figure 17 As shown in the figure, the shell 100 is provided with a protection piece 110, the protection piece 110 protrudes out of the shell 100, in the axial direction of the first driving shaft 310, the protection piece 110 protrudes out of the magnetic ring 810 in the direction away from the shell 100, and the minimum distance L between the end surface of the protection piece 110 protruding out of the magnetic ring 810 and the magnetic ring 810 satisfies: 0.5mm≤L≤5mm.

[0175] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0176] The driving device 1000 for stirring equipment and other components of the stirring equipment according to the embodiments of the present application are known to those skilled in the art, and will not be described in detail here.

[0177] In the description of the present application, the description of the terms "embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above 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.

[0178] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A drive device for a stirring apparatus, characterized in that, Comprise: a housing having a first chamber and a second chamber arranged axially along the housing; a driving assembly arranged in the first chamber and comprising a first driving shaft extending out of the first chamber, the first driving shaft being adapted to cooperate with a stirring member; a planetary gear assembly arranged in the second chamber and comprising a second driving shaft extending out of the second chamber, the second driving shaft being adapted to cooperate with a stirring member.

2. The drive arrangement for a mixing apparatus according to claim 1, characterized in that The housing comprises a housing body and a first end cover and a second end cover arranged axially on both sides of the housing body, at least part of the first end cover is spaced apart from the housing body to form the first chamber in the axial direction of the housing, and at least part of the second end cover is spaced apart from the housing body to form the second chamber.

3. The drive arrangement for a mixing apparatus according to claim 1, characterized in that The maximum outer diameter of the housing is 85-110mm.

4. The drive arrangement for a mixing apparatus according to claim 3, characterized in that The maximum outer diameter of the housing is 90-100mm.

5. The drive apparatus for a stirring device according to claim 1, characterized by The maximum height of the housing is 55-80mm.

6. The drive arrangement for a mixing apparatus according to claim 5, characterized in that The maximum height of the housing is 60-75mm.

7. The drive arrangement for a mixing apparatus according to claim 2, characterized in that The driving assembly further comprises a rotor assembly and a stator assembly coupled to each other, at least one of the rotor assembly and the stator assembly is fixed to the housing body and / or the first end cover, the rotor assembly cooperates with the first driving shaft to drive the first driving shaft to rotate.

8. The drive arrangement for a mixing apparatus according to claim 7, characterized in that The planetary gear assembly comprises a sun gear, an inner ring gear and a planetary gear assembly, the sun gear cooperates with the rotor assembly, the inner ring gear is fixed to the circumferential inner side of the second end cover and / or the housing body, the planetary gear assembly comprises a plurality of planetary gears, a planetary carrier and the second driving shaft, the plurality of planetary gears and the second driving shaft are arranged in the planetary carrier respectively, and the plurality of planetary gears are respectively engaged with the sun gear and the inner ring gear.

9. The drive arrangement for a mixing apparatus according to claim 8, characterized in that The first driving shaft and the second driving shaft are coaxially arranged.

10. The drive arrangement for a mixing apparatus according to claim 8, characterized in that The reduction ratio of the planetary gear assembly is i, and the i satisfies 6≤i≤12.

11. The drive arrangement for a mixing apparatus according to claim 8, characterized in that The gear modulus m of at least one of the sun gear, the planetary gear and the inner ring gear satisfies: 0.6≤m≤1.

25.

12. The drive arrangement for a mixing apparatus according to claim 8, characterized in that The diameter da1 of the addendum circle of the sun gear satisfies: 8mm≤da1≤15mm.

13. The drive arrangement for a mixing apparatus according to claim 8, characterized in that The stator assembly comprises a stator core, the outer diameter of the stator core is D, the diameter of the root circle of the inner ring gear is df3, and the driving device satisfies: 0.7≤df3 / D≤0.

9.

14. The drive arrangement for a mixing apparatus according to claim 1, characterized in that The planetary gear assembly is a multi-stage planetary gear assembly.

15. A drive arrangement for a mixing apparatus according to claim 14, characterised in that, The number of stages K of the multi-stage planetary gear assembly is ≤3.

16. The drive arrangement for a mixing apparatus according to claim 1, characterized in that At least one first supporting bearing is arranged between the second driving shaft and the housing.

17. A drive arrangement for a mixing apparatus according to claim 16, characterised in that, The first supporting bearings are a plurality of, and a spacing pad is arranged between adjacent first supporting bearings.

18. The drive arrangement for a mixing apparatus according to claim 7, characterized in that Further comprising a control module and a detection device, the detection device is configured to detect the operating state of the rotor assembly, and the control module is electrically connected with the detection device to control the input current of the driving device according to the detection result of the detection device.

19. A drive arrangement for a mixing apparatus according to claim 18, characterised in that, The detection device comprises a magnetic ring and a Hall component, the magnetic ring is sleeved on the first driving shaft, and the Hall component is arranged on the housing and is used to sense the magnetic field change of the magnetic ring.

20. A drive arrangement for a mixing apparatus according to claim 19, characterised in that, The magnetic ring is located on a portion of the first drive shaft that protrudes from the housing.

21. A drive arrangement for a mixing apparatus according to claim 20, characterised in that, The housing is further provided with a protection member that protrudes from the housing, in the axial direction of the first drive shaft, the protection member protrudes from the magnetic ring towards a direction away from the housing.

22. The drive arrangement for a mixing apparatus as claimed in claim 21, wherein, The minimum distance between the end surface of the protection member that protrudes from the magnetic ring and the magnetic ring is L, wherein 0.5mm≤L≤5mm.

23. A stirring apparatus characterized by, Comprise: A drive device according to any one of claims 1-22; A stirring member, the first drive shaft and / or the second drive shaft is provided with the stirring member.

24. The apparatus of claim 23, wherein, The stirring device is a chef machine or a dough kneader.

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