Drive mechanism for a domestic food mixer

Abstract

The utility model discloses a domestic food mixer's drive mechanism relates to food processing equipment technical field, including drive assembly, drive assembly includes the casing, the casing, gear ring, the inside top wall fixed mounting of casing has the servo motor, the inside wall fixed connection of casing has the baffle disc, the upper surface of baffle disc is equipped with the perforation, the bottom end of servo motor's rotation axis penetrates the perforation, and fixedly connected with planet carrier. The utility model discloses the design structure is reasonable, it can pass through the planetary transmission structure that gear ring, planetary gear, sun wheel jointly constitute, three planetary gears are equidistant concentric distribution, and the symmetrical force system is formed with planet carrier, sun wheel, makes the power of servo motor even transmission through multiple point meshing, effectively reduces single tooth stress load, compared with traditional single gear drive, and the structure transmission efficiency improves significantly, and can bear greater instantaneous load, solved the transmission jam problem that the existing drive mechanism led to because stress concentration.

Description

Technical Field

[0001] This utility model relates to the field of food processing equipment technology, specifically the drive mechanism of a household food mixer. Background Technology

[0002] In today's demand for convenient living, household food blenders have become indispensable assistants in many family kitchens due to their efficient food processing capabilities. Through a drive mechanism that powers the mixing blades, they perform operations such as blending and pulverizing various ingredients, greatly improving cooking efficiency and the convenience of food preparation. The drive mechanism, as the core component of the blender, directly determines its performance. Existing drive mechanisms can, to a certain extent, meet the basic operational requirements of household food blenders. For example, through the rational design of gear components and other structures, the motor speed can be adjusted, allowing the mixing blades to operate at an appropriate speed to complete tasks such as blending and pulverizing ingredients. However, existing drive mechanisms still have room for improvement. In terms of structural design, some drive mechanisms have low transmission efficiency, leading to low working efficiency. Therefore, we provide a drive mechanism for household food blenders to solve these problems. Utility Model Content

[0003] 1) Technical problems to be solved This utility model proposes a drive mechanism for a household food mixer, which solves the problem of transmission jamming caused by concentrated force in existing drive mechanisms through the cooperation between components such as the gear ring, planetary gears, and sun gear.

[0004] (ii) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a drive mechanism for a household food mixer, including a drive assembly, the drive assembly including a housing, the housing and a gear ring, a servo motor fixedly installed on the inner top wall of the housing, a baffle plate fixedly connected to the inner side wall of the housing, a through hole on the upper surface of the baffle plate, the bottom end of the rotating shaft of the servo motor passing through the through hole and fixedly connected to a planetary carrier, a sealing plate fixedly connected to the lower surface of the housing, and a through hole on the upper surface of the sealing plate; The tooth surfaces of the gear ring are meshed with three equidistant concentric planetary gears, and the center positions of the three planetary gears are meshed with a sun gear. The lower surface of the sun gear is fixedly connected to a drive shaft, and the bottom end of the drive shaft has a through hole.

[0005] Furthermore, the arc surface of the gear ring is fixedly connected to the inner wall of the housing, and the upper surfaces of the three planetary gears are rotatably connected to the three planetary gear shafts of the planet carrier.

[0006] Furthermore, the drive assembly is provided with a stabilizing mechanism, which includes a cylinder, the outer surface of which is fixedly connected to the inner wall of the through hole.

[0007] Furthermore, a circular through groove is provided at the top of the cylinder, and multiple layers of equidistant and concentric buffer cylinders are nested inside the circular through groove.

[0008] Furthermore, the outer surface of the outermost buffer cylinder is fixedly connected to the inner wall of the circular through groove, and buffer rings are fixedly connected between the multiple layers of buffer cylinders.

[0009] Furthermore, the buffer ring is made of rubber, and the buffer ring is fixedly connected to the adjacent buffer cylinders to form a whole.

[0010] Furthermore, two symmetrical bearings are fixedly installed on the inner wall of the innermost buffer cylinder, and the inner rings of the two bearings are fixedly connected to the outer surface of the drive shaft.

[0011] (iii) Beneficial effects: Compared with existing technologies, the drive mechanism of this household food blender has the following advantages: I. The drive mechanism of this household food blender utilizes a planetary transmission structure composed of a ring gear, planetary gears, and a sun gear. The three planetary gears are equidistantly and concentrically distributed, forming a symmetrical force system with the planet carrier and sun gear. This allows the servo motor's power to be evenly transmitted through multi-point meshing, effectively reducing the load on a single tooth. Compared to traditional single-gear transmissions, this structure significantly improves transmission efficiency and can withstand greater instantaneous loads, solving the transmission jamming problem caused by concentrated force in existing drive mechanisms. II. The drive mechanism of this household food blender incorporates a shaft stabilizing mechanism. A composite buffer structure is formed by multiple layers of buffer cylinders and rubber buffer rings. The rubber buffer rings possess excellent elastic deformation capabilities, absorbing radial runout during drive shaft rotation through their own deformation. Combined with the stable support of the bearings, this significantly reduces vibration amplitude. Simultaneously, the reduced vibration directly weakens collision noise between components. Combined with the smooth characteristics of planetary transmission, the overall operating noise is significantly lower than traditional drive mechanisms, improving user comfort. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 This is a three-dimensional front view structural diagram of the present invention; Figure 2This is a three-dimensional structural exploded view of the drive component of this utility model; Figure 3 This is a three-dimensional structural exploded view of the stabilizing mechanism of this utility model; Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 5 This utility model Figure 3 Enlarged structural diagram at point B. In the diagram: 1. Drive assembly; 101. Housing; 102. Servo motor; 103. Baffle; 104. Perforation; 105. Planetary carrier; 106. Planetary gear; 107. Gear ring; 108. Sun gear; 109. Drive shaft; 110. Sealing disc; 111. Through hole; 2. Shaft stabilizing mechanism; 201. Cylinder; 202. Circular through slot; 203. Buffer cylinder; 204. Buffer ring; 205. Bearing. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] The servo motor 102 in this utility model is a common electrical or hydraulic device in the prior art, and this application will not elaborate on its model or internal structure.

[0016] like Figure 1-5 As shown, this utility model provides a technical solution: a drive mechanism for a household food blender, including a drive assembly 1. The drive assembly 1 includes a housing 101, a gear ring 107, a servo motor 102 fixedly mounted on the inner top wall of the housing 101, a baffle 103 fixedly connected to the inner side wall of the housing 101, a through hole 104 opened on the upper surface of the baffle 103, the bottom end of the rotating shaft of the servo motor 102 passes through the through hole 104 and is fixedly connected to a planetary carrier 105, and a sealing disc fixedly connected to the lower surface of the housing 101. 110. A through hole 111 is provided on the upper surface of the sealing disc 110. Three equidistant and concentric planetary gears 106 are meshed on the tooth surface of the gear ring 107. A sun gear 108 is meshed at the center of the three planetary gears 106. A drive shaft 109 is fixedly connected to the lower surface of the sun gear 108. The bottom end of the drive shaft 109 passes through the through hole 111. The arc surface of the gear ring 107 is fixedly connected to the inner side wall of the housing 101. The upper surfaces of the three planetary gears 106 are rotatably connected to the three planetary gear shafts of the planet carrier 105.

[0017] The planetary transmission structure here is composed of the gear ring 107, planetary gear 106, and sun gear 108.

[0018] When the servo motor 102 starts, its rotating shaft drives the planetary carrier 105 to rotate synchronously. Since the three planetary gear shafts of the planetary carrier 105 are rotatably connected to the three planetary gears 106 respectively, and the tooth surfaces of the three planetary gears 106 simultaneously mesh with the gear ring 107 fixed on the inner side wall of the housing 101 and the sun gear 108 at the center, the planetary gears 106 will revolve around the inner side of the gear ring 107 under the drive of the planetary carrier 105. At the same time, due to the fixed constraint of the gear ring 107, they will rotate. This composite motion of revolution and rotation is transmitted to the sun gear 108 through gear meshing, driving the sun gear 108 to rotate at a specific speed, thereby driving the transmission shaft 109 fixedly connected to it to rotate, and finally outputting power to the mixing blade assembly of the mixer. The power of the servo motor 102 is evenly transmitted through multi-point meshing, effectively reducing the force load on a single tooth. Compared with the traditional single gear transmission, the transmission efficiency of this structure is significantly improved, and it can withstand a larger instantaneous load, solving the problem of transmission jamming caused by force concentration in the existing drive mechanism.

[0019] The drive assembly 1 is provided with a shaft stabilizing mechanism 2, which includes a cylinder 201. The outer surface of the cylinder 201 is fixedly connected to the inner wall of the through hole 111. A circular through groove 202 is opened at the top of the cylinder 201. Multiple layers of equidistant and concentric buffer cylinders 203 are nested inside the circular through groove 202. The outer surface of the outermost buffer cylinder 203 is fixedly connected to the inner wall of the circular through groove 202. Buffer rings 204 are fixedly connected between the multiple layers of buffer cylinders 203. The buffer rings 204 are made of rubber and are fixedly connected to the adjacent buffer cylinders 203. Two mutually symmetrical bearings 205 are fixedly installed on the inner wall of the innermost buffer cylinder 203. The inner rings of the two bearings 205 are fixedly connected to the outer surface of the drive shaft 109.

[0020] The bearing 205 here is a mature piece of equipment in the county-level technology, and its model or internal structure will not be described in detail here.

[0021] During power output, the stabilizing mechanism 2 plays a crucial auxiliary role: after the drive shaft 109 passes through the through hole 111 of the sealing disc 110, it is connected to the innermost buffer cylinder 203 through the bearing 205. The rubber buffer rings 204 between the multiple buffer cylinders 203 can absorb the radial vibration generated when the drive shaft 109 rotates. With the fixed support of the cylinder 201, it ensures that the drive shaft 109 always maintains a stable axis trajectory, avoiding transmission deviation or component wear caused by vibration, and significantly reducing the vibration amplitude. At the same time, the reduction of vibration directly weakens the collision noise between components. Combined with the smooth characteristics of planetary transmission, the overall operating noise is significantly lower than that of traditional drive mechanisms, improving user comfort.

[0022] Working principle: When the servo motor 102 starts, its rotating shaft drives the planetary carrier 105 to rotate synchronously. Since the three planetary gear shafts of the planetary carrier 105 are respectively rotatably connected to the three planetary gears 106, and the tooth surfaces of the three planetary gears 106 simultaneously mesh with the gear ring 107 fixed on the inner wall of the housing 101 and the sun gear 108 at the center, the planetary gears 106, driven by the planetary carrier 105, will revolve around the inner side of the gear ring 107. At the same time, due to the fixed constraint of the gear ring 107, they will rotate. This combined motion of revolution and rotation is transmitted to the sun gear 108 through gear meshing, driving the sun gear 108. The wheel 108 rotates at a specific speed, which in turn drives the drive shaft 109, which is fixedly connected to it, to rotate, and finally outputs power to the mixing blade assembly of the mixer. During the power output process, the shaft stabilizing mechanism 2 plays a key auxiliary role: after the drive shaft 109 passes through the through hole 111 of the sealing disc 110, it is connected to the innermost buffer cylinder 203 through the bearing 205. The rubber buffer rings 204 between the multiple buffer cylinders 203 can absorb the radial vibration generated when the drive shaft 109 rotates. With the fixed support of the cylinder 201, it ensures that the drive shaft 109 always maintains a stable axial trajectory and avoids transmission deviation or component wear caused by vibration.

[0023] In the description of this utility model, it should be understood that the terms "left," "right," "upper," "lower," "top," "bottom," "front," "rear," "inner," "outer," "back," and "middle," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation on this utility model. However, the above description is only a specific embodiment of this utility model and should not be used to limit the scope of implementation of this utility model. Therefore, substitutions of equivalent components, or equivalent changes and modifications made within the scope of protection of this utility model patent, should still fall within the scope of the claims of this utility model.

Claims

1. A drive mechanism for a household food blender, comprising a drive assembly (1), characterized in that: The drive assembly (1) includes a housing (101), a gear ring (107), a servo motor (102) fixedly mounted on the inner top wall of the housing (101), a baffle (103) fixedly connected to the inner side wall of the housing (101), a through hole (104) opened on the upper surface of the baffle (103), the bottom end of the rotating shaft of the servo motor (102) passes through the through hole (104) and is fixedly connected to a planetary carrier (105), a sealing disc (110) fixedly connected to the lower surface of the housing (101), and a through hole (111) opened on the upper surface of the sealing disc (110). The tooth surfaces of the gear ring (107) are meshed with three equidistant and concentric planetary gears (106), and the center of the three planetary gears (106) is meshed with a sun gear (108). The lower surface of the sun gear (108) is fixedly connected to a drive shaft (109), and the bottom end of the drive shaft (109) is through a through hole (111).

2. The drive mechanism of the household food mixer according to claim 1, characterized in that: The arc surface of the gear ring (107) is fixedly connected to the inner wall of the housing (101), and the upper surfaces of the three planetary gears (106) are rotatably connected to the three planetary gear shafts of the planet carrier (105).

3. The drive mechanism of the household food mixer according to claim 2, characterized in that: The drive assembly (1) is provided with a stabilizing mechanism (2), which includes a cylinder (201) whose outer surface is fixedly connected to the inner wall of the through hole (111).

4. The drive mechanism of the household food mixer according to claim 3, characterized in that: The top of the cylinder (201) is provided with a circular through groove (202), and multiple layers of equidistant and concentric buffer cylinders (203) are nested inside the circular through groove (202).

5. The drive mechanism of the household food mixer according to claim 4, characterized in that: The outer surface of the outermost buffer cylinder (203) is fixedly connected to the inner wall of the circular through groove (202), and buffer rings (204) are fixedly connected between the multiple layers of buffer cylinders (203).

6. The drive mechanism of the household food mixer according to claim 5, characterized in that: The buffer ring (204) is made of rubber, and the buffer ring (204) is fixedly connected to the adjacent buffer cylinder (203) to form a whole.

7. The drive mechanism of the household food mixer according to claim 4, characterized in that: The innermost buffer cylinder (203) has two mutually symmetrical bearings (205) fixedly installed on its inner wall. The inner rings of the two bearings (205) are fixedly connected to the outer surface of the drive shaft (109).

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