Tube ice machine ice cutting device

Abstract

This application discloses an ice-cutting device for a tube ice machine, including an outer barrel and an ice outlet located on one side of the outer barrel. Inside the outer barrel is a rotatable turntable, on which several sawing shafts with saw blades are rotatably connected. A drive mechanism drives the sawing shafts to rotate on the turntable. The bottom center of the turntable is rotatably connected to the inside of the outer barrel via a support shaft. A rotating cylinder with an external gear ring is located at the top of the turntable. A transmission gear outside the outer barrel meshes with the external gear ring and is driven to rotate by a transmission motor. An ice-dropping plate with an ice-falling opening is located between the saw blades and the turntable. A guide structure is located between the bottom of the turntable and the ice outlet. The rotating cylinder contains reinforcing sheet metal. The outer barrel has a top protective frame and a bottom protective frame. This application achieves the effect of efficiently and stably cutting tube ice and guiding the cut tube ice to the ice outlet, while simultaneously improving the stability and durability of the device through the protective frames and reinforcing structure.

Description

Technical Field

[0001] This application relates to the field of tube ice production equipment, and in particular to ice cutting devices for tube ice machines. Background Technology

[0002] In the field of tube ice production equipment, the ice-cutting device of the tube ice machine is a key component for achieving efficient tube ice cutting, and its performance directly affects the uniformity, cleanliness, and production efficiency of the tube ice. In existing technologies, various ice-cutting devices have been proposed, but they often suffer from problems such as complex structure, high precision requirements, and high manufacturing costs.

[0003] In related technologies, Chinese patent CN111998583B discloses a novel tube ice machine ice cutting device. Its core structural principle is based on a dual-spindle drive system. By making the interior of the first spindle connected to the center of the turntable hollow, and inserting the second spindle inside the first spindle, the device is driven by a first motor and a second motor respectively. The aim is to achieve precise cutting of tube ice through independent revolution and rotation. On the other hand, Chinese patent CN111998582B discloses a tube ice machine ice cutting device. Its structural principle focuses on a single spindle drive combined with electric slip ring power supply. The spindle is hollow, and an electric slip ring is connected to its bottom end. The cable of the second motor is connected to the electric slip ring through the interior of the spindle to solve the power supply problem during rotation.

[0004] Regarding the aforementioned technologies, the applicant believes that the following defects exist: the spindle of the turntable needs to serve as both a drive shaft and a support shaft, requiring a support base to be installed inside the outer barrel. The spindle is rotatably connected to the outer barrel through the support base. In addition, the spindle also needs to be connected to the drive components, which complicates the spindle installation structure. Furthermore, the turntable needs to bear the falling ice tubes, which generates vibrations and exacerbates transmission instability. It requires a precision spindle system, which not only increases manufacturing costs (such as high-precision machining and sealing components) but also increases maintenance difficulty (such as disassembly and calibration difficulties), making it difficult to promote in low-cost applications. Summary of the Invention

[0005] In order to simplify the transmission structure and reduce the manufacturing and maintenance costs of the equipment, this application provides an ice cutting device for a tube ice machine.

[0006] The ice-cutting device for the tube ice machine provided in this application adopts the following technical solution: An ice-cutting device for a tube ice machine includes an outer barrel and an ice outlet located on one side of the outer barrel. A rotatable turntable is installed inside the outer barrel, and several sawing shafts are rotatably connected to the turntable. Saw blades are coaxially fixed to the upper ends of each sawing shaft. A drive mechanism for rotating the sawing shafts is installed on the turntable. A support shaft is connected to the center of the bottom of the turntable, and the turntable is rotatably connected to the inside of the outer barrel via the support shaft. A rotating cylinder is installed on the outer periphery of the top of the turntable, and an external gear ring is installed on the outer circumference of the rotating cylinder. A transmission gear is rotatably connected to the outside of the outer barrel, and the transmission gear meshes with the external gear ring for transmission. A drive motor is installed outside the outer barrel to drive the transmission gear to rotate.

[0007] By adopting the above technical solution, the turntable is rotatably connected to the inside of the outer barrel via a support shaft, replacing the traditional complex spindle system and simplifying the installation structure. A rotating cylinder and an external gear ring are installed on the top of the turntable, meshing with the transmission gears and transmission motor outside the outer barrel to achieve the turntable's revolution. This gear transmission method avoids the need for high-precision spindle assembly, reduces manufacturing costs and maintenance difficulty, while providing more precise transmission efficiency and improving the long-term stability of the equipment.

[0008] Preferably, an ice-dropping plate is provided between the saw blade and the turntable, and the ice-dropping plate is fixed on the turntable; an ice-dropping opening is provided on the ice-dropping plate at the position corresponding to the saw blade; the ice-dropping opening of the ice-dropping plate is connected to the interior of the turntable; an inclined guide structure is provided between the bottom of the turntable and the ice outlet to guide the tube ice in the turntable to the ice outlet; the ice-dropping plate is provided with several through holes.

[0009] By adopting the above technical solution, the ice-dropping plate is fixed on the turntable, which is equipped with an ice-dropping opening and a through hole. In conjunction with the guide structure inside the turntable, it can effectively guide the cut tube ice to fall smoothly and separate the water. The ice-dropping opening is connected to the inside of the turntable to ensure a smooth transition of the tube ice and reduce the ice fragments caused by collisions. The inclined design of the guide structure further guides the tube ice out of the ice-dropping opening, improving cutting efficiency and cleanliness. At the same time, the overall structure is simple and easy to maintain.

[0010] Preferably, the inner peripheral wall of the rotating drum is provided with a reinforcing sheet metal, which is located at the same height as the outer gear ring, and is used to support the inner peripheral wall of the rotating drum and the inner side of the outer gear ring.

[0011] By adopting the above technical solution, the inner circumferential wall of the rotating drum is reinforced with sheet metal and is located at the same height as the outer gear ring. This provides uniform support for the inner side of the rotating drum and the outer gear ring, enhances structural rigidity, and prevents the turntable from deforming under load. This ensures the meshing stability of the outer gear ring and the transmission gear, reduces transmission errors, extends the service life of the equipment, and the integrated design of the reinforced sheet metal does not add extra complexity.

[0012] Preferably, the reinforcing sheet metal is S-shaped and bypasses the lower ice openings corresponding to several saw blades, and the fixed connection points between the inner circumferential wall of the rotating drum and the two ends of the reinforcing sheet metal are symmetrically distributed.

[0013] By adopting the above technical solution, the reinforced sheet metal is S-shaped and bypasses the ice outlet, avoiding interference with the ice pipe's falling path. At the same time, the symmetrical distribution of fixing points between the inner circumference of the rotating drum and the reinforced sheet metal further optimizes the stress distribution and reduces local stress concentration. This design ensures smooth ice pipe flow while guaranteeing support strength, thus improving the reliability and efficiency of the equipment.

[0014] Preferably, the outer side of the outer barrel is provided with a top protective frame for accommodating the transmission gear, the transmission motor is installed at the top protective frame, and the output shaft of the transmission motor is coaxially and fixedly connected to the transmission gear.

[0015] By adopting the above technical solution, a top protective frame is set on the outside of the outer barrel to accommodate the transmission gears and transmission motor, providing external protection to prevent environmental factors (such as moisture or dust) from affecting the transmission components. This reduces the risk of failure, simplifies the maintenance process, and the integrated installation of the protective frame and the transmission motor makes the structure more compact and facilitates on-site debugging.

[0016] Preferably, the turntable has a receiving cavity, and several sawing shafts are inserted into the receiving cavity. The lower end of the support shaft extends to the inner bottom wall of the outer barrel and is fixedly connected to the outer barrel. The top of the support shaft is rotatably connected to the bottom of the turntable. The support shaft has a central hole extending through it along its axis. The driving mechanism includes a drive shaft and a driving component for driving the drive shaft to rotate. The drive shaft passes through the central hole and extends into the receiving cavity. A transmission belt for transmission is provided between the upper end of the drive shaft and several sawing shafts.

[0017] By adopting the above technical solution, a receiving cavity is set inside the turntable, a central hole is opened on the support shaft, the drive shaft passes through it and is connected to the sawing shaft through the transmission belt, realizing the centralized drive of the saw blade rotation; this design uses the central hole of the support shaft to transmit power, has a compact structure, reduces external transmission components, lowers the assembly precision requirements, and the transmission belt connection ensures the synchronous movement of multiple sawing shafts, improves cutting consistency, and the drive component is placed below the outer barrel, further simplifying the upper space.

[0018] Preferably, a bottom protective frame for accommodating the drive component is provided below the outer barrel.

[0019] By adopting the above technical solution, a bottom protective frame is set below the outer barrel to accommodate the drive components and provide sealed protection for the drive mechanism to prevent water or ice fragments from entering. This, together with the top protective frame, forms a complete protection system, which improves the durability of the equipment in humid environments and reduces the frequency of maintenance.

[0020] Preferably, the upper end of the support shaft is fixedly connected to the bottom of the turntable, and the lower end of the support shaft extends to the inner bottom wall of the outer barrel and is rotatably connected to the outer barrel. The drive mechanism includes several independent motors installed below the turntable, and each of the several independent motors corresponds to a several sawing shafts. The output shaft of each independent motor is coaxially and fixedly connected to the corresponding sawing shaft.

[0021] By adopting the above technical solution, the support shaft is rotatably connected to the bottom wall of the outer barrel, and the drive mechanism uses multiple independent motors, each of which directly drives the corresponding sawing shaft, eliminating the need for a central drive shaft and transmission belt. This decentralized drive method simplifies the transmission chain, reduces the number of parts, improves modularity, makes maintenance more convenient, and independent control allows for flexible adjustment of the saw blade speed to adapt to different cutting needs.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The turntable is rotatably connected to the inside of the outer barrel via a support shaft, replacing the traditional complex spindle system and simplifying the installation structure; the turntable revolves through the meshing of the rotating drum, external gear ring, and external transmission gear and transmission motor, avoiding the need for high-precision spindle assembly, reducing manufacturing costs and maintenance difficulty, and improving the long-term operational stability of the equipment. 2. The ice drop plate, in conjunction with the guide structure inside the turntable, guides the cut tube ice to fall smoothly and separates the water, ensuring a smooth transition of the tube ice, reducing ice fragments caused by collisions, improving cutting efficiency and cleanliness, and the overall structure is simple and easy to maintain; 3. The inner circumferential wall of the rotating drum is reinforced with sheet metal to provide uniform support for the inner side of the rotating drum and the outer gear ring, enhance structural rigidity, prevent the turntable from deforming under load, ensure the meshing stability of the outer gear ring and the transmission gear, reduce transmission errors, and extend the service life of the equipment. Attached Figure Description

[0023] Figure 1 This is a front view of the tube ice machine ice cutting device in Embodiment 1 of this application.

[0024] Figure 2 This is a top view of the tube ice machine ice cutting device in Embodiment 1 of this application.

[0025] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0026] Figure 4 This is a front view of the tube ice machine ice cutting device in Embodiment 2 of this application.

[0027] Figure 5 This is a top view of the tube ice machine ice cutting device in Embodiment 2 of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Outer barrel; 11. Top protective frame; 12. Bottom protective frame; 13. Ice outlet; 2. Turntable; 21. Receiving cavity; 22. Support shaft; 3. Ice drop plate; 31. Ice outlet; 32. Through hole; 4. Saw blade; 41. Saw shaft; 5. Drive component; 51. Drive shaft; 52. Transmission belt; 6. Transmission motor; 7. Transmission gear; 8. External gear ring; 9. Rotary drum; 91. Reinforcing sheet metal; 10. Independent motor. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] Example 1 The tube ice machine ice cutting device provided in this application embodiment refers to... Figures 1 to 3 The system includes an outer drum 1, a turntable 2, a sawing shaft 41, a saw blade 4, a drive mechanism, a support shaft 22, a rotating drum 9, an external gear ring 8, a transmission gear 7, and a transmission motor 6. The outer drum 1 has an ice outlet 13 on one side. The turntable 2 inside the outer drum 1 is rotatably connected via the support shaft 22. Several sawing shafts 41 are rotatably connected to the turntable 2, with saw blades 4 fixed to the upper ends of the sawing shafts 41. The drive mechanism drives the sawing shafts 41 to rotate. The rotating drum 9 is located on top of the turntable 2 and has an external gear ring 8 on its outer circumference. The transmission gear 7 outside the outer drum 1 meshes with the external gear ring 8 and is driven by the transmission motor 6. This structure allows the turntable 2 to revolve, enabling the cutting of the tube ice, reducing reliance on a high-precision spindle system, and improving transmission stability and equipment reliability.

[0031] Specifically, the outer barrel 1 is the external frame of the entire device, serving to protect the internal components and support the structure. It is typically cylindrical and can be made of materials such as stainless steel to ensure sufficient strength and corrosion resistance. Other suitable metals or alloys can also be selected based on actual needs. The ice outlet 13 is located on one side of the outer barrel 1 and serves as the channel for discharging the cut tube ice. Its location and size need to be determined based on the discharge volume and speed of the tube ice during actual production.

[0032] The turntable 2 is rotatably mounted inside the outer barrel 1 and is made of metal. Several mounting holes are provided on the upper surface of the turntable 2 for rotatable connection with the sawing shaft 41. The sawing shaft 41 is the component that drives the saw blade 4 to rotate and cut the pipe ice. It is typically a cylindrical shaft made of high-strength steel to ensure its stability and durability during high-speed rotation. The saw blade 4 is coaxially fixed to the upper end of the sawing shaft 41. It is circular in shape with sharp serrations on its edges and can be made of wear-resistant materials such as hard alloy to improve cutting efficiency and service life.

[0033] The drive mechanism is used to rotate several sawing shafts 41, providing the power for the saw blade 4 to cut. The support shaft 22 is connected to the center of the bottom of the turntable 2, serving as a support component for the rotation of the turntable 2. It is cylindrical in shape and rotatably connected to the inner bottom wall of the outer barrel 1 via bearings and other components. This connection method allows the turntable 2 to rotate smoothly. The support shaft 22 can be made of high-strength alloy steel to withstand the weight of the turntable 2 and the tube ice.

[0034] A cylindrical drum 9 is coaxially mounted on the top outer periphery of the turntable 2, with an external gear ring 8 on its outer circumference. The external gear ring 8 is a key structure that meshes with the transmission gear 7; its tooth profile and dimensions must be precisely designed according to transmission requirements and can be manufactured by forging or machining. The drum 9 can be made of metal to ensure its strength and rigidity. The transmission gear 7 is rotatably connected to the outside of the outer drum 1, meshing with the external gear ring 8 to transmit the power of the transmission motor 6 to the drum 9, thereby driving the turntable 2 to rotate. The transmission gear 7 can be made of materials such as gear steel, and undergoes heat treatment and precision machining to ensure its transmission accuracy and wear resistance. The transmission motor 6 is mounted outside the outer drum 1, and its output shaft is coaxially and fixedly connected to the transmission gear 7, providing power to the entire transmission system. The transmission motor 6 can be selected with appropriate power and speed according to actual needs to meet different production requirements.

[0035] An ice-falling plate 3 is installed between the saw blade 4 and the turntable 2. The ice-falling plate 3 is fixed to the turntable 2 and serves to guide the falling ice and separate water. The ice-falling plate 3 is typically a flat plate structure, made of metal or plastic, and possesses a certain degree of strength and corrosion resistance. An ice-falling opening 31 is provided on the ice-falling plate 3 at the position corresponding to the saw blade 4. The ice-falling opening 31 communicates with the interior of the turntable 2, ensuring that the cut ice can fall smoothly into the interior of the turntable 2. The ice-falling plate 3 also has several through holes 32, which allow water generated during the cutting process to drain out, maintaining the cleanliness of the ice.

[0036] A reinforcing sheet metal 91 is provided on the inner circumferential wall of the rotating drum 9. The reinforcing sheet metal 91 is located at the same height as the outer gear ring 8 and is used to support the inner circumferential wall of the rotating drum 9 and the inner side of the outer gear ring 8. The reinforcing sheet metal 91 is S-shaped and bypasses several ice-falling openings 31 corresponding to the saw blades 4 to avoid interference with the falling path of the pipe ice. The fixed connection points at both ends of the inner circumferential wall of the rotating drum 9 and the reinforcing sheet metal 91 are symmetrically distributed. This symmetrical distribution design can optimize stress distribution, reduce local stress concentration, and enhance the rigidity and stability of the structure. The reinforcing sheet metal 91 can be made of metal sheet and fixed to the inner circumferential wall of the rotating drum 9 by welding or bolting.

[0037] A top protective frame 11 is provided on the outer side of the outer tub 1 to accommodate the transmission gear 7. The top protective frame 11 protects the transmission gear 7 from damage caused by environmental factors such as moisture and dust. The top protective frame 11 can be made of metal sheet and is fixed to the outer side of the outer tub 1 by bolts or welding. The transmission motor 6 is installed at the top protective frame 11, and its output shaft is coaxially and fixedly connected to the transmission gear 7. This integrated installation method makes the structure more compact and facilitates on-site debugging and maintenance.

[0038] The turntable 2 has a receiving cavity 21, and the lower ends of several sawing shafts 41 are all inserted into the receiving cavity 21. In this embodiment, a bearing is installed on the outer periphery of the top of the support shaft 22, and the bearing enables rotation with the bottom of the turntable 2. The lower end of the support shaft 22 extends to the inner bottom wall of the outer barrel 1 and is fixedly connected to the outer barrel 1. The support shaft 22 has a central hole through it along its axis. The driving mechanism includes a drive shaft 51 and a driving component 5 for driving the drive shaft 51 to rotate. The drive shaft 51 passes through the central hole and extends into the receiving cavity 21. A bearing is installed at the upper section of the drive shaft 51, and the bearing enables rotational connection with the support shaft 22. A transmission belt 52 is provided between the upper end of the drive shaft 51 and the several sawing shafts 41 for transmission. The drive shaft 51 can be made of high-strength alloy steel, and the transmission belt 52 can be a synchronous belt, etc., to ensure the stability and reliability of the transmission. A bottom protective frame 12 is provided below the outer tub 1 to accommodate the drive component 5. The bottom protective frame 12 provides a sealed protection for the drive component 5, preventing water or ice fragments from entering. Together with the top protective frame 11, it forms a complete protective system, improving the equipment's durability in humid environments and reducing maintenance frequency. In this embodiment, the drive component 5 can consist of a motor and a synchronous belt. The lower end of the drive shaft 51 passes through the bottom protective frame 12, and the synchronous belt is fitted between the lower end of the drive shaft 51 and the motor output shaft, engaging to transmit motor power to the drive shaft 51, thereby driving the drive shaft 51 to rotate stably.

[0039] The implementation principle of this embodiment is as follows: the transmission motor 6 drives the transmission gear 7 to rotate, and the transmission gear 7 meshes with the outer gear ring 8 on the outer circumference of the rotating drum 9, causing the rotating drum 9 and the turntable 2 to revolve. At the same time, the driving component 5 of the driving mechanism drives the driving shaft 51 to rotate, and the driving shaft 51 drives several sawing shafts 41 to rotate through the transmission belt 52, thereby causing the saw blade 4 to rotate and realize the cutting of the tube ice. The cut tube ice falls into the interior of the turntable 2 through the lower ice opening 31 of the ice drop plate 3, and is then guided by the inclined guide structure to be discharged from the ice outlet 13. In this embodiment, the guide structure adopts the inclined plate structure commonly used in the prior art, that is, an inclined plate for transitioning the tube ice from the lower ice opening 31 to the turntable 2 is connected through the lower ice opening 31; and a slide is provided at the bottom of the turntable 2 to allow the tube ice to slide down; an inclined slide plate is provided between the slide plate and the ice outlet 13, and the inclined slide plate is fixed to the outer drum 1. While the slide plate rotates with the turntable 2, the outlet end of the slide plate always faces the inclined slide plate, so as to smoothly guide the tube ice to the ice outlet 13 using the inclined slide plate.

[0040] In this embodiment, the reinforced sheet metal 91 enhances the structural rigidity of the rotating drum 9 and the external gear ring 8, while the top protective frame 11 and the bottom protective frame 12 protect the transmission components and the drive component 5, respectively, thereby improving the stability and durability of the equipment. This structural design simplifies the transmission structure, reduces equipment manufacturing and maintenance costs, avoids the dependence of traditional ice-cutting devices on high-precision spindle systems, improves transmission stability, and is suitable for various tube ice production scenarios.

[0041] Example 2 The difference between this embodiment and Embodiment 1 lies in the composition of the drive mechanism and the connection method of the support shaft 22. In this embodiment, the drive mechanism includes several independent motors 10 mounted below the turntable 2. Each independent motor 10 corresponds to a sawing shaft 41, and the output shaft of the independent motor 10 is coaxially and fixedly connected to the corresponding sawing shaft 41. This distributed drive method eliminates the central drive shaft 51 and the transmission belt 52, simplifies the transmission chain, reduces the number of parts, and improves modularity. The independent motors 10 can independently control the speed of the sawing shaft 41 according to actual needs, making it more flexible to adapt to different tube ice cutting requirements. Each independent motor 10 can be a small servo motor, which has the advantages of small size, high power density, and high control precision. The independent motors 10 are fixed below the turntable 2 by bolts or other means, and their output shafts are coaxially connected to the sawing shaft 41 through couplings or other components to ensure stable power transmission. In addition, the upper end of the support shaft 22 is fixedly connected to the bottom of the turntable 2, and the lower end of the support shaft 22 extends to the inner bottom wall of the outer barrel 1 and is rotatably connected to the inner bottom wall of the outer barrel 1.

[0042] The implementation principle of this embodiment is as follows: each independent motor 10 directly drives the corresponding sawing shaft 41 to rotate, realizing the rotation of the saw blade 4 for tube ice cutting. This decentralized drive method makes maintenance more convenient. When a sawing shaft 41 or motor fails, only the corresponding part needs to be replaced, without disassembling and calibrating the entire transmission system. At the same time, independently controlling the speed of the saw blade 4 can better adapt to the cutting requirements of tube ice of different thicknesses and hardnesses, improving cutting accuracy and efficiency, further reducing equipment maintenance and operating costs, and improving the adaptability and reliability of the equipment.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An ice-cutting device for a tube ice machine, comprising an outer barrel (1) and an ice outlet (13) disposed on one side of the outer barrel (1), wherein a rotatable turntable (2) is disposed inside the outer barrel (1), and a plurality of sawing shafts (41) are rotatably connected to the turntable (2), and a saw blade (4) is coaxially fixedly connected to the upper end of each of the plurality of sawing shafts (41); characterized in that, The turntable (2) is provided with a drive mechanism for driving several sawing shafts (41) to rotate. A support shaft (22) is connected to the center of the bottom of the turntable (2). The turntable (2) is rotatably connected to the inside of the outer barrel (1) through the support shaft (22). A rotating cylinder (9) is provided on the outer periphery of the top of the turntable (2). An external gear ring (8) is provided on the outer periphery of the rotating cylinder (9). A transmission gear (7) is rotatably connected to the outside of the outer barrel (1). The transmission gear (7) meshes with the external gear ring (8) for transmission. A transmission motor (6) is provided on the outside of the outer barrel (1). The transmission motor (6) is used to drive the transmission gear (7) to rotate.

2. The ice-cutting device for a tube ice machine according to claim 1, characterized in that: An ice-dropping plate (3) is provided between the saw blade (4) and the turntable (2), and the ice-dropping plate (3) is fixed on the turntable (2); an ice-dropping opening (31) is provided on the ice-dropping plate (3) at the position corresponding to the saw blade (4); the ice-dropping opening (31) of the ice-dropping plate (3) is connected to the interior of the turntable (2); an inclined guide structure is provided between the bottom of the turntable (2) and the ice outlet (13) for guiding the tube ice in the turntable (2) to the ice outlet (13); the ice-dropping plate (3) is provided with several through holes (32).

3. The ice-cutting device for a tube ice machine according to claim 2, characterized in that: The inner peripheral wall of the rotating cylinder (9) is provided with a reinforcing sheet metal (91), which is located at the same height as the outer gear ring (8) and is used to support the inner peripheral wall of the rotating cylinder (9) and the inner side of the outer gear ring (8).

4. The ice-cutting device for a tube ice machine according to claim 3, characterized in that: The reinforcing sheet metal (91) is S-shaped and bypasses the lower ice opening (31) corresponding to several saw blades (4). The fixed connection points between the inner circumferential wall of the rotating drum (9) and the two ends of the reinforcing sheet metal (91) are symmetrically distributed.

5. The ice-cutting device for a tube ice machine according to claim 1, characterized in that: The outer barrel (1) is provided with a top protective frame (11) for accommodating the transmission gear (7). The transmission motor (6) is installed on the top protective frame (11), and the output shaft of the transmission motor (6) is coaxially and fixedly connected to the transmission gear (7).

6. The ice-cutting device for a tube ice machine according to any one of claims 1 to 5, characterized in that: The turntable (2) is provided with a receiving cavity (21), and a plurality of sawing shafts (41) are inserted into the receiving cavity (21). The lower end of the support shaft (22) extends to the inner bottom wall of the outer barrel (1) and is fixedly connected to the outer barrel (1). The top of the support shaft (22) is rotatably connected to the bottom of the turntable (2). The support shaft (22) has a central hole through it along the axis. The driving mechanism includes a drive shaft (51) and a driving component (5) for driving the drive shaft (51) to rotate. The drive shaft (51) is inserted into the central hole and extends into the receiving cavity (21). A transmission belt (52) for transmission is provided between the upper end of the drive shaft (51) and the plurality of sawing shafts (41).

7. The ice-cutting device for a tube ice machine according to claim 6, characterized in that: A bottom protective frame (12) for accommodating the drive component (5) is provided below the outer barrel (1).

8. The ice-cutting device for a tube ice machine according to any one of claims 1 to 5, characterized in that: The upper end of the support shaft (22) is fixedly connected to the bottom of the turntable (2), and the lower end of the support shaft (22) extends to the inner bottom wall of the outer barrel (1) and is rotatably connected to the outer barrel (1). The driving mechanism includes several independent motors (10) installed below the turntable (2). Each of the several independent motors (10) corresponds to a several sawing shafts (41). The output shaft of each independent motor (10) is coaxially fixedly connected to the corresponding sawing shaft (41).

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