Planet wheel transmission structure for ice cream machine

Abstract

The utility model discloses a planet wheel transmission structure for an ice cream machine, which comprises a planet wheel carrier, a plurality of planet gears are arranged on the planet wheel carrier along the circumference, the planet gears are rotatably arranged on the planet wheel carrier, a first gear ring and a second gear ring are arranged on the outer side of the planet wheel carrier, and the first gear ring and the second gear ring are arranged on the outer side of the planet wheel carrier. The first gear ring and the second gear ring are longitudinally arranged in a spaced mode, and the planetary gear is meshed with the first gear ring and the second gear ring. A plurality of planetary gears are combined to form a power input element; and the second gear ring forms a power output element. The first gear ring and the second gear ring which are longitudinally arranged at an interval are adopted, the first gear ring is fixedly arranged on the mounting platform to play a role in transmission matching, and the second gear ring plays a role in power output, so that the overall size is reduced, and the size of a product can be smaller due to the miniaturization arrangement; the later product delivery and transportation cost can be reduced; and a user can conveniently store and place the product.

Description

Technical Field

[0001] The utility model relates to a planetary gear transmission structure used for an ice cream machine. Background Art

[0002] Prior art, such as Chinese utility model patent application document, publication number CN117752007A, discloses a control method for an ice cream machine. In this technology, a first output shaft and a second output shaft are provided through the motor. The first output shaft is connected to the knife shaft by a belt transmission, and the second output shaft is connected to the screw nut by a planetary gear set.

[0003] Based on the above, the existing planetary gear set is connected with the screw nut for transmission. The technical problem existing in the existing planetary gear set is that, affected by the existing planetary gear set structure, the volume of the planetary gear set is large. The large volume of the planetary gear set will increase the volume of the entire product and affect the product's factory transportation and user's use and storage. The existing planetary gear set structure is not suitable for this kind of small household appliance product and needs further improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a planetary gear transmission structure of an ice cream machine with a compact structure and a small volume.

[0005] A planetary gear transmission structure for an ice cream machine designed for this purpose comprises a planetary gear carrier, a plurality of planetary gears are arranged circumferentially on the planetary gear carrier, the planetary gears are rotatably arranged on the planetary gear carrier, a first gear ring and a second gear ring are arranged on the outer side of the planetary gear carrier, the first gear ring and the second gear ring are longitudinally spaced, and the planetary gears are respectively meshed with the first gear ring and the second gear ring;

[0006] A plurality of planetary gears are combined to form a power input element;

[0007] The second ring gear constitutes a power output element.

[0008] Preferably, a first magnetic transmission element is provided on the second gear ring, and the first magnetic transmission element is used for cooperating with the second magnetic transmission element to form power output.

[0009] Preferably, a transmission ring extending downward is provided on the second gear ring, and the first magnetic transmission element is provided on the transmission ring.

[0010] Preferably, a plurality of the first magnetic transmission elements are provided and arranged along the circumference of the transmission ring.

[0011] Compared with the prior art, the utility model has a first gear ring and a second gear ring disposed on the outside of the planetary wheel carrier, the first gear ring and the second gear ring are disposed longitudinally at intervals, the planetary gears mesh with the first gear ring and the second gear ring respectively; a plurality of planetary gears are combined to form a power input element; and the second gear ring constitutes a power output element. When an external force drives the planetary gear to rotate, since the planetary gear meshes with the first gear ring and the first gear ring is fixedly disposed, the planetary gear together with the planetary wheel carrier rotates relative to the first gear ring. During the rotation process, the planetary gear drives the second gear ring to rotate synchronously, thereby outputting power through the second gear ring. The utility model adopts a first gear ring and a second gear ring disposed longitudinally at intervals, the first gear ring is fixedly disposed on the mounting platform to play a transmission cooperation role, and the second gear ring plays a role of power output, so that the overall volume is reduced, and the miniaturized setting can make the size of the product more compact, which is conducive to reducing the cost of the later product transportation from the factory and facilitating the storage and placement of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of an ice cream machine;

[0013] Figure 2 It is one of the cross-sectional structural diagrams of the transmission structure of the ice cream machine;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of a planetary gear transmission structure;

[0015] Figure 4 It is a schematic diagram of the exploded structure of the planetary gear transmission structure;

[0016] Figure 5 It is a schematic diagram of the cross-sectional structure of the magnetic transmission structure;

[0017] Figure 6 The second schematic diagram of the cross-section structure of the transmission structure of the ice cream machine;

[0018] Figure 7 is a schematic diagram of the three-dimensional structure of the second gear ring;

[0019] Figure 8 It is a schematic diagram of the three-dimensional structure of the transmission ring and the columnar transmission part; DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-Figure 8, a planetary gear transmission structure for an ice cream machine, the ice cream machine includes a base 10, the base 10 is provided with a mounting platform 20 that can move longitudinally relative to the base 10, the mounting platform 20 is provided with a knife shaft 100 and a lifting assembly 40, the lifting assembly 40 is connected to the base 10 to drive the mounting platform 20 to move longitudinally relative to the base 10, the mounting platform 20 is provided with a motor 30 and a speed change assembly 50, the speed change assembly 50 is provided with a power input element 510 and a power output element 520, the motor shaft 310 of the motor 30 is drivingly connected with the power input element 510 and the knife shaft 100;

[0022] The power output element 520 is provided with a first magnetic transmission element 710, and the lifting assembly 40 is provided with a second magnetic transmission element 720. The first magnetic transmission element 710 and the second magnetic transmission element 720 are magnetically matched to make the power output element 520 rotate relative to the installation platform 20 to drive the lifting assembly 40 to operate.

[0023] During normal operation of the utility model, the motor can synchronously drive the speed change component to operate and drive the knife shaft to rotate. During this process, the speed change component cooperates with the first magnetic transmission element and the second magnetic transmission element to drive the lifting component to operate, so that the installation platform can move downward relative to the machine base, and the knife shaft rotates and moves downward at the same time. When the ice shaving depth of the knife head does not reach the preset descending height of the knife head, when the knife head is blocked by ice, and the resistance of the movement of the installation platform is greater than the suction force of the first magnetic transmission element and the second magnetic transmission element, the power output element and the lifting component rotate relative to each other, so that the lifting component is in a stationary state. At this time, the motor is still running to drive the knife shaft to rotate for shaving ice. When the knife head shaves out space, the knife head is no longer constrained by the movement resistance. The first magnetic transmission element and the second magnetic transmission element cooperate again to transmit, driving the lifting component to operate so that the installation platform and the knife shaft move downward to shave ice again.

[0024] In the utility model, under the cooperative transmission of the first magnetic transmission element and the second magnetic transmission element, when the sensor for sensing the position of the installation platform fails, when the installation platform moves to the maximum stroke, the installation platform is blocked and cannot move, and the resistance to the movement of the moving platform is greater than the suction force of the first magnetic transmission element and the second magnetic transmission element, the power output element and the lifting assembly rotate relative to each other, so that the lifting assembly is in a static state, thereby protecting the entire transmission system and avoiding damage to the transmission system.

[0025] During normal operation, the force of the power output element 520 driving the lifting assembly to rotate is F1, and the suction force of the first magnetic transmission element 710 and the second magnetic transmission element 720 is F2. During normal operation, F2>F1, so the power output element 520 drives the lifting assembly to operate, so that the installation platform moves up and down, and the knife shaft rotates to shave ice; when the limit switch used to sense the position of the installation platform fails or the bearing capacity of shaved ice is too large, F2<F1, the power output end 520 will move relative to the lifting assembly 40, that is, slip, at this time the lifting part will not move up and down, but the motor still drives the knife shaft to drive the knife head to shave ice.

[0026] See also Figure 3 and Figure 4 The speed change assembly 50 includes a planetary wheel carrier 540, on which a plurality of planetary gears 550 are arranged along a circumference, and the planetary gears 550 are rotatably arranged on the planetary wheel carrier 540, and a first gear ring 560 and a second gear ring 570 are arranged on the outer side of the planetary wheel carrier 540, and the planetary gears 550 are respectively meshed with the first gear ring 560 and the second gear ring 570, and the first gear ring 560 is fixedly arranged on the mounting platform 20, and the second gear ring 570 is rotatably arranged on the mounting platform 20;

[0027] A plurality of planetary gears 550 are combined to form a power input element 510;

[0028] A first driving gear 300 is disposed on the motor shaft 310 of the motor 30 , and the first driving gear 300 is disposed between the plurality of planetary gears 550 and meshes with the planetary gears 550 ;

[0029] The second ring gear 570 constitutes the power output element 520 .

[0030] The motor shaft 310 of the motor 30 drives the first drive gear 300 to rotate, and the first drive gear 300 drives the multiple planetary gears 550 to rotate. The planetary gears 550 are meshed with the first ring gear 560, so that the planetary gears 550 and the planetary wheel carrier 540 rotate relative to the first ring gear 560. During the rotation process, the planetary gears 550 drive the second ring gear 570 to rotate synchronously, thereby outputting power through the second ring gear 570 to drive the lifting assembly 40 to operate.

[0031] Furthermore, the first gear ring 560 is provided with a plurality of positioning posts 561 for positioning and cooperating with the mounting platform 20. During assembly, the positioning posts 561 are embedded in the positioning grooves of the mounting platform 20.

[0032] Furthermore, the motor shaft 310 is a gear shaft, and the first driving gear 300 and the motor shaft 310 are an integrated structure.

[0033] Furthermore, the planetary wheel carrier 540 is assembled by an upper wheel carrier and a lower wheel carrier using screws.

[0034] See also Figure 2 The lifting assembly 40 includes a first threaded transmission member 410 and a second threaded transmission member 420, the first threaded transmission member 410 is threadedly connected to the second threaded transmission member 420, the second threaded transmission member 420 is fixedly arranged on the machine base 10, the first threaded transmission member 410 is rotatably arranged on the mounting platform 20, and the second magnetic transmission element 720 is arranged on the first threaded transmission member 410.

[0035] Further, the first threaded transmission member 410 is a screw, and the second threaded transmission member 420 is a screw nut. A first guide rod 440 is provided on the mounting platform 20, and a second guide rod 430 is provided on the base 10. The first guide rod 440 and the second guide rod 430 are plugged and matched with each other for guidance.

[0036] The second gear ring 570 is provided with a transmission ring 580 extending downward, the first threaded transmission member 410 is provided with a columnar transmission part 530 plugged with the transmission ring 580, the second magnetic transmission element 720 is provided on the columnar transmission part 530, and the first magnetic transmission element 710 is provided on the transmission ring 580. Under normal operation, under the cooperation of the first magnetic transmission element and the second magnetic transmission element, the transmission ring 580 drives the columnar transmission part 530 to rotate synchronously. When the cutter head is blocked and cannot move, the lifting assembly cannot operate normally. At this time, the transmission ring 580 rotates relative to the columnar transmission part 530, and the columnar transmission part 530 remains stationary until the cutter head has space to move.

[0037] Furthermore, a mounting groove 531 is provided on the columnar transmission part 530 , and the second magnetic transmission element 720 is disposed in the mounting groove 531 .

[0038] The first magnetic transmission element 710 and the second magnetic transmission element 720 are both magnets, and the number of the magnets is set according to different magnetic force requirements.

[0039] Furthermore, a plurality of the first magnetic transmission elements 710 are provided and arranged along the circumference of the transmission ring 580 .

[0040] See also Figure 2 A transmission assembly 60 is provided on the mounting platform 20; the transmission assembly 60 includes a first gear 610, a second gear 620, a third gear 630, a fourth gear 640 and a fifth gear 650 which are sequentially connected in transmission connection, the first gear 610 is connected in transmission connection with the motor shaft 310, and the fifth gear 650 is connected in transmission connection with the knife shaft 100.

[0041] Furthermore, a transmission element 660 is provided on the mounting platform 20 , the fifth gear 650 is connected to the transmission element 660 for transmission, a coupling transmission groove 670 is provided on the transmission element 660 , and the upper end of the knife shaft 100 is coupled to the coupling transmission groove 670 for transmission.

[0042] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0044] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A planetary gear transmission structure for an ice cream machine, comprising a planetary gear carrier (540), a plurality of planetary gears (550) arranged along a circumference on the planetary gear carrier (540), the planetary gears (550) being rotatably arranged on the planetary gear carrier (540), characterized in that: A first gear ring (560) and a second gear ring (570) are arranged on the outer side of the planetary wheel carrier (540), the first gear ring (560) and the second gear ring (570) are arranged with a longitudinal interval, and the planetary gear (550) is respectively meshed with the first gear ring (560) and the second gear ring (570); A plurality of planetary gears (550) are combined to form a power input element (510); The second ring gear (570) constitutes a power output element (520).

2. The planetary gear transmission structure for an ice cream machine according to claim 1, characterized in that: The second gear ring (570) is provided with a first magnetic transmission element (710), and the first magnetic transmission element (710) is used to cooperate with the second magnetic transmission element (720) to transmit power to form power output.

3. The planetary gear transmission structure for an ice cream machine according to claim 2, characterized in that: A transmission ring (580) extending downward is arranged on the second gear ring (570), and the first magnetic transmission element (710) is arranged on the transmission ring (580).

4. The planetary gear transmission structure for an ice cream machine according to claim 3, characterized in that: The first magnetic transmission elements (710) are provided in plurality and are arranged along the circumference of the transmission ring (580).

5. The planetary gear transmission structure for an ice cream machine according to claim 1, characterized in that: The first gear ring (560) is provided with a plurality of positioning posts (561) for positioning and cooperating with the mounting platform (20).

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