Driving device of stirring frame of electric ice cream machine

Abstract

The utility model discloses a driving device of a stirring frame of an electric ice cream machine. The rotating shaft connecting piece comprises a first flange plate, a second hole, a second shaft sleeve and a connecting shaft, a first clamping column is arranged on the first shaft sleeve and the connecting shaft, second bolts are arranged on the first clamping column, the first flange plate is arranged on the four first bolts in a sleeving mode, the flange connecting piece comprises a second flange plate, a first sleeve and a third flange plate, the second flange plate is arranged on the four first bolts in a sleeving mode, and the outer end of the second flange plate is screwed and fixed through nuts. The first shaft sleeve and the second shaft sleeve are sleeved with the sleeve, the third flange plate is fixed to a fourth flange plate of the variable-speed motor, and a power output shaft, provided with a second clamping column, of the variable-speed motor is clamped in the first shaft sleeve with a clamping groove. Supporting is firm, stability is good, and noise is low.

Description

Technical Field

[0001] This utility model relates to a driving device, and more particularly to a driving device for the stirring rack of an electric ice cream machine. Background Technology

[0002] Currently, most electric ice cream machines use a drive mechanism where the motor's output shaft is directly connected to the mixing shaft via a pulley or a tubular bushing. For example, my utility model patent, "An Ice Cream Machine" (patent number ZL202020848822.6), uses a pulley connection: "Pulley 1 on the motor's power shaft is connected to pulley 2 via a transmission belt, and pulley 2 is mounted on the mixing shaft." Another patent, "An Ice Cream and Shaved Ice Machine" (patent number 202320633315.4), uses a direct tubular bushing connection: "The mixing shaft located at the center of the mixing tank extends through the bottom of the tank and connects to the output shaft of the variable-speed motor." The drawbacks of these two connection structures are that the rotating shaft must both rotate and provide full support, while the bottom of the mixing tank lacks other support, resulting in poor stability and a tendency to shake, vibrate, and generate significant noise during mixing. Multiple measures must be taken to reinforce the motor; otherwise, the stability will be further compromised, with more severe shaking, vibration, and noise. Summary of the Invention

[0003] The purpose of this invention is to provide a drive device for a stirring rack of an electric ice cream machine that is sturdy, stable, and quiet.

[0004] The technical solution adopted by this utility model is as follows: The driving device of this electric ice cream machine mixing rack has a hole at the center of the bottom of the mixing tank, around which four bolts are fixed. The rotating shaft connector includes a flange, four holes on the flange corresponding to the four bolts, a bushing fixed in the center hole of the flange, a connecting shaft fitted inside the bushing, and a bushing with a groove connected and fixed to the lower end of the connecting shaft. A four-sided retaining post is provided on the upper part of the connecting shaft, and bolts are provided on the four-sided retaining post. The four-sided retaining post and bolts of the connecting shaft pass through the hole and are located inside the mixing tank. The flange 1 is fitted onto the four bolts 1 through four holes 2. The bushing 3 of the mixing frame is fitted onto the four-sided retaining post 1 and is tightened and fixed by the nut on the bolt 2. The flange connection includes flange 2, sleeve 1, and flange 3. The four holes 3 on flange 2 are fitted onto the four bolts 1, and the outer end is tightened and fixed by the four nuts 1. The sleeve is fitted onto the outside of bushing 1 and bushing 2. Flange 3 is fixed to flange 4 of the variable speed motor through bolts and nuts. The power output shaft of the variable speed motor with retaining post 2 is fitted into bushing 1 with a retaining groove. Retaining post 2 is embedded in the retaining groove.

[0005] Furthermore, an oil seal is provided around the connecting shaft on the flange of the rotating shaft connector, and a rubber seal is provided outside the bushing.

[0006] Due to the adoption of the above technical solution, this utility model has the following beneficial effects: First, the flange one of the rotating shaft connector is tightly attached to the bottom of the mixing tank. The flange one is fixed together with the flange two of the flange connector by four bolts and nuts. The flange three of the flange connector is then fixed together with the flange four of the variable speed motor by four bolts and nuts. This changes the previous structure where the rotating shaft was used to support the mixing tank entirely, and instead, the structure is supported entirely by the flanges of the rotating shaft connector, the flanges of the flange connector, and the flange of the variable speed motor. The rotating shaft no longer provides support, but only handles rotation. The flange has a large area, a large fixing area, and a large support area, resulting in strong support and good stability. Good stability reduces shaking and vibration, naturally reducing noise. Second, an oil seal is provided around the connecting shaft, and a rubber sealing ring is provided outside the bushing two, providing good and tight sealing of the center hole one at the bottom of the mixing tank. Third, the structure is simple, easy to install and disassemble, and only requires fixing to the bottom of the variable speed motor. Attached Figure Description

[0007] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0008] Figure 1 This is a three-dimensional schematic diagram of the appearance of the stirring rack of this utility model installed inside the stirring tank;

[0009] Figure 2 This is a three-dimensional view of the front appearance of the mixing rack of this utility model;

[0010] Figure 3 This is a three-dimensional view of the finished appearance of the present invention after installation;

[0011] Figure 4 This is a three-dimensional view of the bottom appearance of the rotating shaft connector of this utility model;

[0012] Figure 5 This is an exploded perspective view of the present invention;

[0013] Figure 6 This is a three-dimensional view of the upper part of the rotating shaft connector of this utility model;

[0014] Figure 7 This is a three-dimensional view of the upper part of the flange connector of this utility model. Detailed Implementation

[0015] Example 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the drive device of this electric ice cream machine's mixing rack has a hole 2 at the center of the bottom of the mixing tank 1, with four bolts 3 fixed around the hole 2. The rotating shaft connector includes a flange 4, four holes 5 on the flange corresponding to the four bolts 3, a bushing 24 fixed in the center hole of the flange 4, a connecting shaft 23 fitted inside the bushing 24, and a bushing 9 with a groove 8 connected and fixed to the lower end of the connecting shaft 23. The upper part of the connecting shaft 23 has a four-sided retaining post 6, and a bolt 7 is provided on the four-sided retaining post 6. The four-sided retaining post 6 and the bolt 7 of the connecting shaft 23 pass through the hole 2 and are located inside the mixing tank 1. The flange 4 is fitted around the four bolts 3 through the four holes 5. On bolt 13, the bushing 311 of the mixing rack 10 is fitted onto the four-sided retaining post 16, and is tightened and fixed by nut 12 on bolt 27. The flange connection includes flange 213, sleeve 14, and flange 315. The four holes 316 on flange 213 are fitted onto the four bolts 13, and the outer end is tightened and fixed by four nuts 17. Sleeve 14 is fitted onto the outside of bushing 19 and bushing 24. Flange 315 is fixed to flange 419 of variable speed motor 18 by bolts and nuts. The power output shaft 21 of variable speed motor 18 with retaining post 220 is fitted into bushing 19 with retaining groove 8, and retaining post 220 is embedded in retaining groove 8. When in operation, the variable speed motor 18 is turned on, and the power output shaft 21 of the variable speed motor 18 rotates. Subsequently, the bushing 9, which is engaged with the power output shaft 21, and the connecting shaft 23, which is fixed to the bushing 9, rotate. The rotation of the connecting shaft 23 drives the stirring frame 10, which is secured to the four-sided locking post 6, to rotate together. The variable speed motor 18 is readily available on the market.

[0016] Example 2, a drive device for an electric ice cream machine stirring rack as described in Example 1, has an oil seal 22 on the flange 4 of the rotating shaft connector surrounding the connecting shaft 23, and a rubber sealing ring 25 outside the bushing 24.

Claims

1. A driving device for a stirring rack in an electric ice cream machine, characterized in that: The mixing tank (1) has a hole 1 (2) at the center of its bottom. Four bolts 1 (3) are fixed around the hole 1 (2). The rotating shaft connector includes a flange 1 (4), four holes 2 (5) on the flange 1 corresponding to the four bolts 1 (3), a bushing 2 (24) fixed in the center hole of the flange 1, a connecting shaft (23) fitted inside the bushing 2 (24), and a bushing 1 (9) with a groove (8) fixed to the lower end of the connecting shaft (23). The upper part of the connecting shaft (23) has a four-sided locking post 1 (6), and a bolt 2 (7) on the four-sided locking post 1 (6). The four-sided locking post 1 (6) and the bolt 2 (7) of the connecting shaft (23) pass through the hole 1 (2) and are located inside the mixing tank (1). The flange 1 is fitted onto the four bolts 1 (3) through the four holes 2 (5). The bushing three (11) of the frame (10) is fitted onto the four-sided retaining post one (6), and is tightened and fixed by the nut on the bolt two (7). The flange connection includes flange two (13), sleeve (14), and flange three (15). The four holes three (16) on flange two (13) are fitted onto the four bolts one (3), and the outer end is tightened and fixed by the four nuts one (17). The sleeve (14) is fitted onto the outside of bushing one (9) and bushing two (24). Flange three (15) is fixed to flange four (19) of variable speed motor (18) by bolts and nuts. The power output shaft (21) of variable speed motor (18) with retaining post two (20) is fitted into bushing one (9) with retaining groove (8). Retaining post two (20) is embedded in retaining groove (8).

2. A drive device for an electric ice cream maker stirring frame according to claim 1, characterized in that: On the flange one (4) of the rotating shaft connector, an oil seal (22) is provided around the connecting shaft (23), and a rubber seal ring (25) is provided outside the bushing two (24).

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