Differential transmission structure for food processor

Abstract

The utility model discloses a differential transmission structure for a food processor. The differential transmission structure comprises a mounting platform, a threaded sleeve, a cutter shaft, a threaded matching part, a first differential gear, a second differential gear, a transmission gear module and a driving motor. The threaded sleeve and the cutter shaft rotate relative to the mounting platform, the cutter shaft partially extends into the threaded sleeve, and the threaded matching part is fixed to the cutter shaft and is in threaded connection with the threaded sleeve. The first differential gear drives the threaded sleeve to rotate, the second differential gear is in transmission with the cutter shaft, and the cutter shaft can axially move relative to the second differential gear. The transmission gear module is in transmission connection with the first differential gear and the second differential gear and is driven by the driving motor. During transmission, speed difference exists between the first differential gear and the second differential gear, and the cutter shaft axially moves while rotating by being matched with threaded connection. The structure does not need an additional differential module, the number of parts is reduced, assembly is simplified, cost is reduced, and the structure is suitable for position adjustment of the cutter shaft in the food processor.

Description

Technical Field

[0001] This utility model relates to the field of food processing machine technology, and in particular to a differential transmission structure for food processing machines. Background Technology

[0002] The prior art, such as the Chinese utility model patent application document, patent application number: 2025205873718, uses a differential speed module to create a speed difference between the sleeve and the cutter shaft, and then achieves the movement of the cutter shaft along the axial direction under the action of the threaded engagement.

[0003] Based on the above, the existing technology has the following technical problems: the additional setup of the differential module results in a large number of parts, high production costs, and many assembly processes, which is not conducive to reducing production costs and needs further improvement. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a differential transmission structure for a food processing machine.

[0005] A differential transmission structure for a food processing machine designed for this purpose includes a mounting platform;

[0006] A threaded sleeve, which is rotatably configured relative to the mounting platform;

[0007] A cutter shaft is rotatably disposed relative to the mounting platform and movable along an axial direction; the cutter shaft extends at least partially into the threaded sleeve.

[0008] A threaded mating part, which is fixedly connected to the cutter shaft and threadedly connected to the threaded sleeve;

[0009] A first differential gear is connected to the threaded sleeve to drive the threaded sleeve to rotate relative to the mounting platform.

[0010] The second differential gear is connected to the cutter shaft in a drive connection, and the cutter shaft is movable relative to the second differential gear along the axial direction.

[0011] A transmission gear module, which is rotatably configured relative to the mounting platform and is connected in transmission to the first differential gear and the second differential gear;

[0012] A drive motor, used to drive the transmission gear module to operate;

[0013] When the transmission gear module drives the first differential gear and the second differential gear to drive each other, there is a speed difference between the first differential gear and the second differential gear.

[0014] Preferably, the transmission gear module includes a transmission gear;

[0015] The transmission gear is connected to the drive motor.

[0016] The transmission gear meshes with the first differential gear and the second differential gear respectively;

[0017] The first differential gear and the second differential gear have a difference in the number of teeth.

[0018] Preferably, the transmission gear module includes two transmission gears;

[0019] The two transmission gears are connected to the drive motor.

[0020] One of the drive gears meshes with the first differential gear; the other drive gear meshes with the second differential gear.

[0021] The two transmission gears have a difference in the number of teeth.

[0022] Preferably, the lower end of the cutter shaft extends below the mounting platform;

[0023] The lower end of the cutter shaft is connected to a cutting tool; the cutting tool is positioned below the mounting platform.

[0024] Preferably, the installation platform is fixedly connected to a fixed sleeve, and the threaded sleeve is at least partially disposed within the fixed sleeve; the threaded sleeve is rotatably disposed relative to the fixed sleeve.

[0025] Preferably, the second differential gear is provided with a shaped shaft hole, and the cutter shaft is movably inserted into the shaped shaft hole.

[0026] Preferably, the threaded part is a nut.

[0027] Preferably, the threaded part is detachably connected to the end of the cutter shaft away from the cutter.

[0028] Preferably, the two transmission gears are an integral structure.

[0029] Preferably, the threaded sleeve is hollow inside and open at both the top and bottom, and the inner wall of the threaded sleeve is provided with a threaded structure, which is threadedly connected to the threaded mating part.

[0030] Compared with existing technologies, this invention provides a differential transmission structure for food processing machines. By setting up a transmission gear module that is simultaneously connected to both the first and second differential gears, the transmission gear module directly drives the first and second differential gears to form a speed difference. This eliminates the need for a separate differential module. The speed difference, combined with the threaded connection between the threaded part and the threaded sleeve, enables the cutter shaft to move along its axial direction. This structural design significantly reduces the number of parts, simplifies the assembly process, and effectively lowers production costs. Simultaneously, it ensures the cutter shaft can move axially while rotating, thus enhancing the market competitiveness of the food processing machine. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 2 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0033] Figure 3 This is the second three-dimensional structural schematic diagram of the present invention;

[0034] Figure 4 This is the third three-dimensional structural schematic diagram of the present invention;

[0035] Figure 5 This is a schematic diagram of the assembly of the cutter shaft and the second differential gear. Detailed Implementation

[0036] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0038] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0039] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0040] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0041] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0042] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "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 the embodiments of this application 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 the embodiments of this application.

[0043] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0044] See Figures 1-5A differential transmission structure for a food processing machine includes a mounting platform 10; a threaded sleeve 20 rotatably disposed relative to the mounting platform 10; a cutter shaft 30 rotatably disposed relative to the mounting platform 10 and movable along an axial direction; the cutter shaft 30 at least partially extending into the threaded sleeve 20; a threaded mating portion 310 fixedly connected to the cutter shaft 30 and threadedly connected to the threaded sleeve 20; and a first differential gear 40, which is kinetically connected to the threaded sleeve 20 to drive the threaded sleeve 20 to rotate relative to the mounting platform 10. The system includes: a second differential gear 50, which is connected to the cutter shaft 30 and is movable relative to the second differential gear 50 along its axial direction; a transmission gear module 60, which is rotatably arranged relative to the mounting platform 10 and is connected to the first differential gear 40 and the second differential gear 50; and a drive motor 70, which drives the transmission gear module 60 to operate. When the transmission gear module 60 drives the first differential gear 40 and the second differential gear 50, there is a speed difference between the first differential gear 40 and the second differential gear 50.

[0045] When the differential transmission structure used in the food processing machine is working, the drive motor starts and drives the transmission gear module to rotate relative to the mounting platform. Since the transmission gear module is simultaneously connected to the first differential gear and the second differential gear, its rotation will synchronously drive the first differential gear and the second differential gear to run.

[0046] The rotation of the first differential gear is transmitted to the threaded sleeve, causing the threaded sleeve to rotate relative to the mounting platform; the second differential gear drives the cutter shaft to rotate synchronously, and the cutter shaft can move relative to the second differential gear along the axial direction.

[0047] Due to the transmission characteristics of the gear module and the first and second differential gears, a speed difference is created when the first and second differential gears operate, resulting in a difference in rotation speed between the threaded sleeve and the cutter shaft. Under the action of this speed difference, the threaded mating part, which is fixedly connected to the cutter shaft, will undergo relative threaded movement with the threaded sleeve. Ultimately, this drives the cutter shaft to move relative to the mounting platform along its own axis while maintaining rotation, thereby meeting the needs of cutter shaft position adjustment during food processing.

[0048] See Figure 3The transmission gear module 60 includes a transmission gear 610; the transmission gear 610 is connected to the drive motor 70; the transmission gear 610 meshes with a first differential gear 40 and a second differential gear 50 respectively; the first differential gear 40 and the second differential gear 50 have a difference in the number of teeth. Due to the difference in the number of teeth between the first differential gear and the second differential gear, a speed difference is formed when they operate under the synchronous drive of the transmission gear, resulting in different rotational speeds between the threaded sleeve and the cutter shaft. Under the action of this speed difference, the threaded mating part fixedly connected to the cutter shaft and the threaded sleeve undergo relative threaded movement, ultimately driving the cutter shaft to move relative to the mounting platform along its own axis while maintaining rotation, thus meeting the requirements for cutter shaft position adjustment in food processing.

[0049] See Figure 4 The transmission gear module 60 includes two transmission gears 610; the two transmission gears 610 are connected to the drive motor 70; one transmission gear 610 meshes with the first differential gear 40; the other transmission gear 610 meshes with the second differential gear 50; the two transmission gears 610 have a difference in the number of teeth. Because of this difference in the number of teeth, when the two transmission gears drive the first and second differential gears synchronously under the drive of the drive motor, a speed difference is created, resulting in different rotational speeds between the threaded sleeve and the cutter shaft. Under this speed difference, the threaded mating part fixedly connected to the cutter shaft and the threaded sleeve undergo relative threaded movement, ultimately driving the cutter shaft to move relative to the mounting platform along its own axis while maintaining rotation, thus meeting the requirements for cutter shaft position adjustment in food processing.

[0050] In this invention, the diameters of the first differential gear 40 and the second differential gear 50 can be set to different specifications according to different differential requirements.

[0051] In this utility model, when a scheme with two transmission gears 610 is adopted, the two transmission gears 610 can be set to gears with different diameters to meet the speed difference requirements between the first differential gear and the second differential gear.

[0052] See Figure 2 The lower end of the cutter shaft 30 extends below the mounting platform 10; a cutter 320 is connected to the lower end of the cutter shaft 30; the cutter 320 is positioned below the mounting platform 10.

[0053] See Figure 1 and Figure 2 The mounting platform 10 is fixedly connected to a fixing sleeve 100, and the threaded sleeve 20 is at least partially disposed within the fixing sleeve 100; the threaded sleeve 20 is rotatably disposed relative to the fixing sleeve 100. The fixing sleeve 100 is installed on the mounting platform 10 using existing installation methods, such as bolt connection or riveting.

[0054] See Figure 5 The second differential gear 50 is provided with an irregularly shaped shaft hole 510, and the cutter shaft 30 is movably inserted into the irregularly shaped shaft hole 510. The irregularly shaped shaft hole 510 is a non-circular hole, and the shape of the cutter shaft 30 matches the irregularly shaped shaft hole 510. The purpose of this design is that after the cutter shaft 30 passes through the irregularly shaped shaft hole 510, both can rotate synchronously, and the cutter shaft 30 can also move relative to the second differential gear 50 along the axial direction.

[0055] See Figure 2 The threaded part 310 is a nut.

[0056] Furthermore, the threaded engagement portion 310 is detachably connected to the end of the cutter shaft 30 away from the cutter 320. The detachable connection can employ existing connection structures.

[0057] In an embodiment where the transmission gear module 60 employs two transmission gears 610, the two transmission gears 610 are an integral structure.

[0058] See Figure 2 and Figure 3 The threaded sleeve 20 is hollow inside and has openings at both the top and bottom. The inner wall of the threaded sleeve 20 is provided with a threaded structure, which is threadedly connected to the threaded mating part 310.

[0059] In this invention, the drive motor 70 can be fixedly installed on the mounting platform 10 or fixed in other positions of the food processing machine. The drive motor 70 only needs to be relatively fixed to the mounting platform 10.

[0060] In this utility model, the first differential gear 40, the second differential gear, and the transmission gear module 60 can be installed inside the mounting cavity of the mounting platform 10 or on the outside of the mounting platform 10, and the three can be connected for transmission.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A differential transmission structure for a food processing machine, characterized in that, Including the installation platform (10); A threaded sleeve (20) is rotatably disposed relative to the mounting platform (10); A cutter shaft (30) is rotatably disposed relative to the mounting platform (10) and movable along the axial direction; the cutter shaft (30) extends at least partially into the threaded sleeve (20); A threaded mating part (310) is fixedly connected to the cutter shaft (30) and threadedly connected to the threaded sleeve (20); The first differential gear (40) is connected to the threaded sleeve (20) to drive the threaded sleeve (20) to rotate relative to the mounting platform (10); The second differential gear (50) is connected to the cutter shaft (30) and the cutter shaft (30) is movable relative to the second differential gear (50) along the axial direction. A transmission gear module (60) is rotatably disposed relative to the mounting platform (10) and is connected in transmission to the first differential gear (40) and the second differential gear (50); A drive motor (70) is used to drive the transmission gear module (60) to operate; When the transmission gear module (60) drives the first differential gear (40) and the second differential gear (50) to drive each other, there is a speed difference between the first differential gear (40) and the second differential gear (50).

2. The differential transmission structure for a food processing machine according to claim 1, characterized in that, The transmission gear module (60) includes a transmission gear (610); The transmission gear (610) is connected to the drive motor (70) in a transmission connection; The transmission gear (610) meshes with the first differential gear (40) and the second differential gear (50) respectively; The first differential gear (40) and the second differential gear (50) have a difference in the number of teeth.

3. The differential transmission structure for a food processing machine according to claim 1, characterized in that, The transmission gear module (60) includes two transmission gears (610); The two transmission gears (610) are connected to the drive motor (70) in a transmission connection; One of the transmission gears (610) meshes with the first differential gear (40); the other transmission gear (610) meshes with the second differential gear (50); There is a difference in the number of teeth between the two transmission gears (610).

4. The differential transmission structure for a food processing machine according to claim 1, characterized in that, The lower end of the cutter shaft (30) extends below the mounting platform (10); The lower end of the cutter shaft (30) is connected to a cutter (320); the cutter (320) is positioned below the mounting platform (10).

5. The differential transmission structure for a food processing machine according to claim 1, characterized in that, The mounting platform (10) is fixedly connected to a fixed sleeve (100), and the threaded sleeve (20) is at least partially disposed inside the fixed sleeve (100); the threaded sleeve (20) is rotatably disposed relative to the fixed sleeve (100).

6. The differential transmission structure for a food processing machine according to claim 1, characterized in that, The second differential gear (50) is provided with a shaped shaft hole (510), and the cutter shaft (30) is movably inserted into the shaped shaft hole (510).

7. The differential transmission structure for a food processing machine according to claim 1, characterized in that, The threaded part (310) is a nut.

8. The differential transmission structure for a food processing machine according to claim 7, characterized in that, The threaded part (310) is detachably connected to the end of the cutter shaft (30) away from the cutter (320).

9. A differential transmission structure for a food processing machine according to claim 3, characterized in that, The two transmission gears (610) are an integral structure.

10. A differential transmission structure for a food processing machine according to claim 1, characterized in that, The threaded sleeve (20) is hollow inside and has openings at both the top and bottom. The inner wall of the threaded sleeve (20) is provided with a threaded structure, which is threadedly connected to the threaded mating part (310).

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