Evaporator assembly of snowflake ice maker and snowflake ice maker

Abstract

The invention relates to the technical field of snowflake ice makers, in particular to an evaporator assembly of a snowflake ice maker, which comprises a support, a barrel is fixedly arranged on the support, a liquid inlet pipe and an air outlet pipe are arranged on the barrel, one end of the liquid inlet pipe is arranged in an inner cavity of the barrel, and the other end of the liquid inlet pipe is used for being connected with a liquid outlet of a refrigerating system. One end of the air outlet pipe is arranged in the inner cavity of the barrel, and the other end of the air outlet pipe is connected with an air outlet of a refrigerating system; a roller is rotatably arranged outside the roller body in a sleeving manner, and the roller is rotatably arranged on the bracket; a cavity is formed between the roller and the roller body, and the cavity is filled with a refrigerating medium; sealing devices are arranged between the two ends of the roller and the two corresponding ends of the roller body. Through the sealing device and the bearing structure between the drum body and the roller, the sealing design of the rotating shaft is simplified, the abrasion risk of a sealing piece is reduced, more importantly, the drum body does not need to rotate, and the sealing structure has the advantages of being simple and reliable, low in cost and long in service life.

Description

Technical Field

[0001] This invention relates to the field of shaved ice machine technology, and specifically to an evaporator assembly for a shaved ice machine and the shaved ice machine thereof. Background Technology

[0002] Snow scraping machines are currently available on the market. Their main structure includes a scraping system composed of a stainless steel roller, drive motor, ingredient dispenser, and ice scraper, as well as components such as a compressor and condenser. The roller has a stainless steel cavity structure, and its interior is connected to the refrigeration system. The lower part of its outer surface is immersed in the ingredient dispenser, and a fixed ice scraper is attached to its front side.

[0003] The connection structure between the drum and the shaft, the liquid inlet pipe, and the air return pipe is very complex. For example, Chinese patent CN216620356U includes a rotating drum with an internal cavity. A drive shaft is installed at one end of the rotating drum, and a rotating seat is provided at the other end of the rotating drum. A main shaft tube is inserted inside the rotating seat. The main shaft tube and the rotating seat can rotate relative to each other. A high-pressure pipe and a low-pressure pipe are inserted inside the main shaft tube and communicate with the cavity inside the rotating drum, and are relatively sealed to each other. The rotating seat includes a connecting seat at the end of the rotating drum. The connecting seat is hollow inside. A sleeve seat is screwed into the connecting seat. The sleeve seat is also hollow inside. The main shaft tube is installed in the sleeve seat. An organic seal is installed between the sleeve seat and the main shaft tube. The organic seal seals the gap between the sleeve seat and the main shaft tube.

[0004] The aforementioned existing technology has the following disadvantages: 1. The refrigerant pressure inside the rotating drum is relatively high, the drive motor connected to the outside of the drum needs to rotate, and the sealing at the rotating shaft is very difficult.

[0005] To address the aforementioned issues, existing technologies urgently need improvement. Summary of the Invention

[0006] The purpose of this invention is to provide an evaporator assembly for a shaved ice machine, which has the advantages of simple structure, reliable sealing, low cost and long service life.

[0007] This invention provides an evaporator assembly for a shaved ice machine, including a support frame. A cylinder is fixedly mounted on the support frame. The cylinder has a liquid inlet pipe and a gas outlet pipe. One end of the liquid inlet pipe is located inside the inner cavity of the cylinder, and the other end is used to connect to the liquid outlet of a refrigeration system. One end of the gas outlet pipe is located inside the inner cavity of the cylinder, and the other end is used to connect to the gas outlet of the refrigeration system. A roller is rotatably mounted on the outside of the cylinder, and the roller is rotatably mounted on the support frame. A cavity is formed between the roller and the cylinder, and the cavity is filled with refrigerant. Sealing devices are provided between the two ends of the roller and the corresponding ends of the cylinder.

[0008] Furthermore, the two ends of the roller are rotatably mounted on the support via bearings; bearings are provided between the two ends of the roller and the two ends of the cylinder so that the roller can rotate relative to the cylinder.

[0009] Furthermore, one end of the roller is provided with end one, and the other end of the roller is provided with end two. End one and end two are connected to the bracket by bearings.

[0010] Furthermore, the inner end of the first end is provided with a mounting recess, and the second end is provided with a mounting through hole; one end of the cylinder is provided with a mounting end one, and the other end of the cylinder is provided with a mounting end two. The mounting end one is provided in the mounting recess through a bearing, and the mounting end two passes through the mounting through hole and is fixed to the bracket. A bearing is provided between the mounting end two and the mounting through hole.

[0011] Furthermore, the second mounting end is provided with a through hole, and one end of the liquid inlet pipe and the air outlet pipe extends into the inner cavity of the cylinder through the through hole. The liquid inlet pipe and the air outlet pipe are welded to the through hole.

[0012] Furthermore, the outer end of the first end is provided with a drive hole, which facilitates connection with a drive device to drive the drum to rotate.

[0013] Furthermore, the sealing device includes a sealing ring disposed between the outer wall of the mounting end and the inner wall of the mounting recess, and a sealing ring disposed between the outer wall of the mounting end and the inner wall of the mounting through hole.

[0014] Furthermore, the sealing device also includes an oil seal disposed between the outer wall of the mounting end and the inner wall of the mounting through hole, the oil seal being disposed outside the corresponding sealing ring.

[0015] Furthermore, the sealing ring between the outer wall of the mounting end and the inner wall of the mounting recess is disposed between the corresponding bearing and the cylinder.

[0016] Furthermore, the present invention also provides a slush ice machine, including the aforementioned evaporator assembly and a tank for holding liquid to be frozen.

[0017] As can be seen from the above, the slush ice machine and its evaporator assembly provided by the present invention simplify the shaft sealing design and reduce the risk of seal wear through the sealing device and bearing structure between the cylinder and the drum. More importantly, the cylinder does not need to rotate, and its sealing structure has the advantages of being simple, reliable, low-cost and long-lasting. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the evaporator assembly of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the snow ice machine of the present invention.

[0020] In the picture:

[0021] 1. Drum; 2. Cylinder; 3. Refrigerant; 4. Inner cavity; 5. Sealing ring; 6. Oil seal; 7. Through hole; 8. Bearing; 9. Bracket; 10. Drive hole; 11. End 1; 12. End 2; 13. Liquid inlet pipe; 14. Weld seal; 15. Gas outlet pipe; 16. Tank; 17. Liquid; 21. Mounting end 1; 23. Mounting end 2; 111. Mounting recess; 121. Mounting through hole. Detailed Implementation

[0022] The technical solution of the present invention will be described below with reference to the accompanying drawings and embodiments.

[0023] In existing technologies, the connection structure between the rotating drum and the refrigeration system of shaved ice machines is complex. The end of the rotating drum and the main shaft tube need to withstand high-pressure sealing, resulting in high precision requirements for parts processing and easy wear. In traditional structures, the refrigerant is directly introduced into the rotating drum, and the dynamic sealing points are subjected to system pressure for a long time. During use, wear of the seals can easily lead to refrigerant leakage, significantly increasing the equipment failure rate.

[0024] To address these issues, researchers discovered that reducing the pressure rating of the sealing components was the key to breakthrough. Analysis revealed that separating the refrigerant circulation path from the rotating parts and employing indirect cooling allowed the dynamic sealing components to withstand only the low-pressure environment of the refrigerant. Based on this idea, a combined structure of a fixed cylinder and a rotating drum was designed. The refrigerant circulates within the fixed cylinder, while the refrigerant flows through the cavity between the rotating drum and the cylinder, achieving physical isolation between the heat exchange process and the mechanical motion.

[0025] like Figure 1As shown, the present invention proposes a structure including a support 9, on which a cylindrical body 2 is fixedly mounted. The cylindrical body 2 is provided with a liquid inlet pipe 13 and a gas outlet pipe 15. One end of the liquid inlet pipe 13 is located inside the inner cavity 4 of the cylindrical body 2, and the other end of the liquid inlet pipe 13 is used to connect to the liquid outlet of the refrigeration system. One end of the gas outlet pipe 15 is located inside the inner cavity 4 of the cylindrical body 2, and the other end of the gas outlet pipe 15 is used to connect to the gas outlet of the refrigeration system. A roller 1 is rotatably fitted around the cylindrical body 2, and the roller 1 is rotatably mounted on the support 9. A cavity for filling with refrigerant 3 is formed between the roller 1 and the cylindrical body 2, and sealing devices are provided between the two ends of the roller 1 and the corresponding two ends of the cylindrical body 2.

[0026] The bracket 9 is a support structure that supports the fixed cylinder 2 and the rotating drum 1. It can be formed by welding a metal frame and provides a stable mounting base for the cylinder 2 while supporting the rotation of the drum 1. The cylinder 2 is a fixed cavity directly connected to the refrigeration system, serving as a static passage for refrigerant circulation. The liquid inlet pipe 13 and the gas outlet pipe 15 are the refrigerant input and output channels, respectively. They can be copper pipes welded to the ends of the cylinder 2 to achieve fluid communication between the refrigeration system and the inner cavity 4 of the cylinder 2. The drum 1 is a rotating component sleeved on the outside of the cylinder 2. It can be a stainless steel cylinder mounted on the bracket 9 via bearings, with its inner wall forming an annular cavity with the outer wall of the cylinder 2. The cavity is a sealed space between the drum 1 and the cylinder 2. Specifically, a 5-50 mm annular gap can be created by controlling the diameter difference between the two to accommodate the refrigerant and achieve heat conduction. The refrigerant is an indirect heat transfer medium, specifically a thermally conductive silicone grease solution or ethylene glycol solution. It absorbs the cold energy transferred by the cylinder within the cavity and then exchanges heat with the inner surface of the drum 1.

[0027] Specifically, the refrigerant enters the inner cavity 4 of the cylinder 2 through the liquid inlet pipe 13, completes evaporation and heat absorption, and then returns to the refrigeration system through the gas outlet pipe 15. The cylinder 2 transfers its cooling capacity to the refrigerant surrounding its outer wall, and the rotating drum 1 drives the refrigerant to flow, enhancing heat exchange efficiency. Since the cylinder 2 is stationary, the liquid inlet pipe 13 and the gas outlet pipe 15 do not need to be connected to the rotating components, fundamentally eliminating the need for high-pressure dynamic sealing. The sealing device between the drum 1 and the cylinder 2 only needs to maintain the seal of the refrigerant under low pressure. Compared with the dynamic seals in the prior art that withstand the pressure of the refrigerant system, the sealing reliability is significantly improved, the structure is greatly simplified, and the cost is greatly reduced.

[0028] Compared to existing technologies, traditional solutions involve directly introducing refrigerant into a rotating drum, requiring simultaneous rotational support and high-pressure sealing between the drum end and the fixed pipe fittings. This solution, through the separation of the drum body 2 and the roller 1, keeps the high-pressure refrigerant circulation system completely stationary, with the rotating components only contacting the low-pressure refrigerant, transforming the high-pressure dynamic seal into a low-pressure static seal. This structural reconfiguration effectively reduces the pressure rating of the sealing components, slows down the wear rate of the seals, and extends the equipment's service life.

[0029] Through the above technical solution, this invention successfully decouples the refrigerant circulation path from the rotating parts, simplifying the sealing structure at the end of the drum. When the drum 1 rotates, it only needs to maintain a low-pressure seal for the refrigerant, improving the working environment of the seals and reducing the risk of refrigerant leakage. The rigid connection between the fixed drum 2 and the support 9 avoids dynamic interaction between the rotating parts and the piping, improving equipment operational stability and effectively controlling the failure rate. The overall structure, through functional zoning design, significantly improves equipment reliability while ensuring refrigeration efficiency.

[0030] The present invention further proposes that the two ends of the roller 1 are rotatably mounted on the bracket 9 by bearings, and the two ends of the roller 1 are provided with bearings 8 between the two ends of the roller 1 and the two ends of the cylinder 2 so that the roller 1 can rotate relative to the cylinder 2.

[0031] A bearing 8 is installed between the roller 1 and the support 2 to transfer the radial load of the roller 1 during rotation to the support 9, thus preventing the sealing structure from bearing excessive pressure. The addition of a bearing 8 between the roller 1 and the cylinder 2 forms a double rotational support structure, so that the relative movement between the cylinder 2 and the roller 1 only needs to bear the axial load, thereby reducing the stress on the sealing device.

[0032] Specifically, when drum 1 rotates, the bearings on bracket 9 provide radial support, ensuring the drum maintains a stable rotational trajectory. The bearing 8 between drum 1 and cylinder 2 further limits the radial offset between them, ensuring the coaxiality of cylinder 2 and drum 1. Therefore, the sealing device only needs to handle axial sealing requirements, avoiding uneven wear of the sealing surface caused by radial offset. Through the mechanical support of the double bearings, the radial load generated by the refrigeration system pressure is distributed to the bearing structure, and the sealing ring does not need to bear radial pressure, thereby reducing sealing accuracy requirements and component manufacturing costs.

[0033] The present invention further proposes that: one end of the roller 1 is provided with end 11, and the other end of the roller 1 is provided with end 22; end 11 and end 22 are connected to the bracket 9 by bearing 8. Simultaneously, the present invention further proposes that the inner end of end 11 is provided with a mounting recess 111, and end 22 is provided with a mounting through hole 121; one end of the cylinder 2 is provided with mounting end 21, and the other end of the cylinder 2 is provided with mounting end 22; mounting end 21 is provided in the mounting recess 111 by bearing, and mounting end 22 passes through the mounting through hole 121 and is fixed to the bracket 9; a bearing 8 is provided between mounting end 22 and mounting through hole 121.

[0034] Among them, end 11 refers to the connection structure on the first side of roller 1, which can be implemented in the form of an annular boss, with a mounting recess 111 machined on its inner end face to accommodate the mounting end of cylinder 2. End 2 12 refers to the connection structure on the second side of roller 1, which can be implemented in the form of a flange, etc., with a through mounting hole 121 machined inside to pass through the mounting end of cylinder 2.

[0035] Specifically, when the drum 1 rotates, end 11 and end 22 form double support points with the bracket 9 via independent bearings 8. The mounting recess 111 and the mounting end 21 of the cylinder 2 form a clearance fit via bearings 8, allowing the drum 1 to rotate freely around the axis of the cylinder 2. The mounting through hole 121 and the mounting end 22 of the cylinder 2 are connected by a through bearing 8, achieving both rotational support and allowing for a fixed connection between the cylinder 2 and the bracket 9. The symmetrical arrangement of the bearings 8 at both ends ensures that the force on the drum 1 is evenly distributed between the two support points during rotation, avoiding uneven wear caused by overload on one side of the bearing. The separate structural design of the mounting recess 111 and the mounting through hole 121 eliminates the need for additional transition connectors when assembling the drum 1 at both ends with the cylinder 2, directly achieving rotational support and axial positioning through the bearings.

[0036] The mounting recess 111 refers to a recessed structure located on the inner side of the end of the roller 1. It can be achieved by machining an annular groove to accommodate the mounting end 21 of the cylinder 2 and form a rotational support through the bearing 8. The mounting through hole 121 refers to a channel structure penetrating the end 12 of the roller 2. It can be achieved by drilling to form a through hole, allowing the mounting end 22 of the cylinder 2 to pass through and be fixed to the bracket 9. The mounting end 21 refers to the extension of one end of the cylinder 2. It can be achieved by a cylindrical structure coaxially welded to the cylinder, forming a rotating pair through a bearing embedded in the mounting recess 111. The mounting end 22 refers to the extension of the other end of the cylinder. It can be achieved by a stepped shaft structure, passing through the mounting through hole 121 and rigidly connected to the bracket 9.

[0037] The present invention further proposes that the second mounting end 22 is provided with a through hole 7, and one end of the liquid inlet pipe 13 and the air outlet pipe 15 extends into the inner cavity 4 of the cylinder 2 through the through hole 7.

[0038] The through hole 7 refers to the axial channel that passes through the mounting end 22. It can be formed by mechanical drilling. Its function is to provide a fixed channel for the liquid inlet pipe 13 and the gas outlet pipe 15, so as to decouple the refrigerant circulation system from the rotational motion of the drum 1.

[0039] Specifically, the through-hole 7 is configured as a static fluid channel, through which the liquid inlet pipe 13 and the gas outlet pipe 15 extend directly to the inner cavity 4 of the cylinder 2. A weld seal 14 is welded between the liquid inlet pipe 13, the gas outlet pipe 15, and the through-hole 7. Since the mounting end 22 is fixedly connected to the bracket 9, a static sealing interface is formed between the through-hole 7 and the pipeline. The sealing structure only needs to withstand the refrigerant pressure and does not need to adapt to rotational movement. When the drum 1 rotates, the cylinder 2 and the mounting end 22 remain stationary. The refrigerant 3 exchanges heat through the cavity between the outer wall of the cylinder 2 and the inner wall of the drum 1, and the refrigerant circulation system is independent of the movement of the drum 1. Thus, the sealing pressure of the fluid pipeline changes from dynamic sealing to static sealing, significantly reducing the risk of seal failure.

[0040] The liquid inlet pipe 13 and the air outlet pipe 15 are welded to the through hole 7 with a weld seal 14 to achieve a sealing effect. The sealing surface here is very small and the sealing effect is excellent.

[0041] The present invention further proposes to provide a drive hole 10 at the outer end of the end 11 of the roller 1, so as to facilitate connection with a drive device to drive the roller 1 to rotate.

[0042] The drive hole 10 refers to the mechanical interface structure located on the outer side of the end of the drum 1. It can be implemented using a circular through hole or a keyway structure, and is used to directly transmit rotational torque. The outer end refers to the end of the axial end face of the drum 1 that is away from the cylinder body 2.

[0043] Specifically, the drive hole 10 is located on the outer end face of the end 11 of the drum 1, and the drive shaft of the drive unit can be rigidly connected to this hole via a coupling or flange. The rotational power generated by the drive unit acts directly on the outer side of the end of the drum 1, eliminating the need for a transmission mechanism inside the drum. Since the transmission path of the driving force is completely independent of the refrigerant circulation channel inside the cylinder 2, the rotary sealing interface exists only at the bearing connection between the end of the drum 1 and the support 9. This layout eliminates the need for the liquid inlet pipe 13 and the gas outlet pipe 15 of the refrigeration system to pass through the inside of the drive shaft, thereby eliminating the dynamic sealing requirement between the rotating shaft and the pipe in the traditional structure.

[0044] The present invention further proposes to provide a sealing ring 5 between the outer wall of the mounting end 21 and the inner wall of the mounting recess 111, and to provide a sealing ring 5 between the outer wall of the mounting end 22 and the inner wall of the mounting through hole 121.

[0045] Specifically, when the roller 1 rotates relative to the cylinder 2, the sealing ring 5 between the outer wall of mounting end 1 21 and the inner wall of the mounting recess 111 fills the assembly gap between them through elastic deformation, preventing the refrigerant 3 or coolant from leaking axially. Simultaneously, the sealing ring 5 between the outer wall of mounting end 22 and the inner wall of the mounting through hole 121 undergoes radial compression, sealing the rotational gap at that location. The sealing ring 5 is directly embedded in the contact area of ​​the rotating mating surface, eliminating the need for an additional complex axial sealing mechanism.

[0046] The present invention further proposes to provide an oil seal 6 between the outer wall of the mounting end 22 and the inner wall of the mounting through hole 121, with the oil seal 6 arranged outside the corresponding sealing ring 5.

[0047] Among them, oil seal 6 refers to a dynamic sealing element with a lip-shaped sealing structure. Specifically, it can be implemented using a rotary oil seal made of rubber material with a metal skeleton. Its lip faces the sealing ring side and maintains contact and sealing with the rotating component through elastic deformation. The outer side refers to the direction away from the inner cavity of the cylinder 2 along the axial direction. The oil seal is set between the sealing ring 5 and the external environment, forming a double barrier of sealing ring 5-oil seal 6 from the inside out.

[0048] The present invention further proposes that the sealing ring 5 between the outer wall of the mounting end 21 and the inner wall of the mounting recess 111 be disposed between the corresponding bearing 8 and the cylinder 2.

[0049] The outer wall of mounting end 21 refers to the cylindrical outer surface where one end of the cylinder connects to the end of the roller 1. Specifically, it can be made of stainless steel to form an annular contact surface, used to establish an axial fit with the end of the roller. The inner wall of mounting recess 111 refers to the inner circumferential surface of the circular groove provided at the end of the roller 1. Specifically, it can be machined into a stepped structure using a turning process, used to accommodate the end of the cylinder and form an axial limiting space.

[0050] Specifically, the sealing ring 5 is arranged in the axial gap formed between the inner ring end face of the bearing 8 and the outer surface of the end of the cylinder 2. When the drum 1 rotates around the cylinder, the bearing 8 bears the radial load of the drum, while the sealing ring 5 only bears the axial static load generated by the refrigerant 3 between the cylinder 2 and the drum 1. The sealing ring 5 is located between the bearing 8 and the cylinder 2.

[0051] like Figure 1 As shown, the present invention further proposes a snow ice machine, including the aforementioned evaporator assembly and tank 16, the tank 16 being used to hold liquid 17 to be frozen.

[0052] The tank 16 is a container for holding the liquid to be frozen. It can be made of stainless steel and positioned below the drum 1, forming a spatial relationship with the evaporator assembly via a fixed support. Its function is to provide a stable space for the liquid, allowing the outer surface of the drum 1 to directly contact the liquid 17 for heat exchange. The evaporator assembly is a refrigeration unit consisting of the cylinder 2, the drum 1, and a sealing device. Specifically, it can be implemented by fixing the cylinder 2 to the support 9 and fitting a rotatable drum 1 around it. The cavity formed between the drum 1 and the cylinder 2 is filled with a refrigerant 3. Its function is to reduce the pressure of the sealing system through indirect refrigeration using the refrigerant 3, while maintaining the drum's rotation function.

[0053] Specifically, when drum 1 rotates under the drive of the drive device, the refrigerant inside the cylinder 2 circulates through the liquid inlet pipe 13 and the gas outlet pipe 15. The refrigerant 3 absorbs the cooling energy transferred from the cylinder 2 and cools the outer wall of drum 1. When the liquid 17 in the tank 16 comes into contact with the outer surface of the rotating drum, the heat is absorbed by the refrigerant to form an ice layer. Both ends of drum 1 are supported by bearings and equipped with a multi-seal structure to create pressure isolation between the rotating and stationary parts, preventing refrigerant or coolant leakage and contamination of the liquid. The tank 6 is set independently of the refrigeration system, which is convenient for disassembly and cleaning and does not affect the sealing performance of the evaporator components.

[0054] Compared to existing technologies, traditional methods directly charge high-pressure refrigerant into the rotating drum, causing the shaft sealing structure to be subjected to high pressure and prone to failure. This solution confines the high-pressure refrigerant to circulate within the fixed cylinder 2, with the drum 1 rotating only as a container for the refrigerant 3. The sealing system only needs to withstand the low pressure generated by the phase change of the refrigerant 3, significantly reducing the risk of seal wear. Simultaneously, the separate design of the tank 16 and the evaporator assembly physically isolates the liquid handling system from the refrigeration system, eliminating the potential for refrigerant leakage and liquid contamination.

[0055] Through the above technical solution, this invention solves the problem of refrigerant leakage caused by the failure of the high-pressure seal on the rotating shaft, and effectively isolates the liquid freezing process from the refrigerant circulation system. When the drum 1 rotates, its outer surface uniformly cools the liquid in the tank, forming a continuous ice layer and improving ice-making efficiency.

[0056] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these modifications are within the scope of protection of the present invention.

Claims

1. An evaporator assembly for a shaved ice machine, characterized in that: Including the support (9), A cylinder (2) is fixedly mounted on the bracket (9). The cylinder (2) is provided with an inlet pipe (13) and an outlet pipe (15). One end of the inlet pipe (13) is located in the inner cavity (4) of the cylinder (2), and the other end of the inlet pipe (13) is used to connect to the liquid outlet of the refrigeration system. One end of the outlet pipe (15) is located in the inner cavity (4) of the cylinder (2), and the other end of the outlet pipe (15) is used to connect to the outlet of the refrigeration system. The cylinder (2) is rotatably fitted with a roller (1), and the roller (1) is rotatably mounted on the support (9); A cavity (2) is formed between the roller (1) and the cylinder (2), and the cavity (2) is filled with refrigerant (3); A sealing device is provided between the two ends of the roller (1) and the corresponding two ends of the cylinder (2).

2. The evaporator assembly of a shaved ice machine according to claim 1, characterized in that: The roller (1) is rotatably mounted on the support (9) at both ends via bearings (8); bearings (8) are provided between the two ends of the roller (1) and the two ends of the cylinder (2) so that the roller (1) can rotate relative to the cylinder (2).

3. The evaporator assembly of a shaved ice machine according to claim 2, characterized in that: One end of the roller (1) is provided with end one (11), and the other end of the roller (1) is provided with end two (12). End one (11) and end two (12) are connected to the bracket (9) by bearing (8).

4. The evaporator assembly of a shaved ice machine according to claim 3, characterized in that: The inner end of the first end (11) is provided with a mounting recess (111), and the second end (12) is provided with a mounting through hole (121); one end of the cylinder (2) is provided with a mounting end (21), and the other end of the cylinder (2) is provided with a mounting end (22). The mounting end (21) is provided in the mounting recess (111) through a bearing (8), and the mounting end (22) passes through the mounting through hole (121) and is fixed with the bracket (9). A bearing (8) is provided between the mounting end (22) and the mounting through hole (121).

5. The evaporator assembly of a shaved ice machine according to claim 4, characterized in that: The second mounting end (22) is provided with a through hole (7). One end of the liquid inlet pipe (13) and the air outlet pipe (15) extends into the inner cavity (4) of the cylinder (2) through the through hole (7). The liquid inlet pipe (13) and the air outlet pipe (15) are welded together with the through hole (7) with a weld seal (14).

6. The evaporator assembly of a shaved ice machine according to claim 4, characterized in that: The outer end of the first end (11) is provided with a drive hole (10) to facilitate connection with a drive device to drive the roller (1) to rotate.

7. The evaporator assembly of a shaved ice machine according to any one of claims 1-6, characterized in that: The sealing device includes a sealing ring (5) disposed between the outer wall of the mounting end one (21) and the inner wall of the mounting recess (111), and a sealing ring (5) disposed between the outer wall of the mounting end two (22) and the inner wall of the mounting through hole (121).

8. The evaporator assembly of a shaved ice machine according to claim 7, characterized in that: The sealing device also includes an oil seal (6) located between the outer wall of the mounting end (22) and the inner wall of the mounting through hole (121), the oil seal (6) being located outside the corresponding sealing ring (5).

9. The evaporator assembly of a shaved ice machine according to claim 7, characterized in that: The sealing ring (5) between the outer wall of the mounting end (21) and the inner wall of the mounting recess (111) is located between the corresponding bearing (8) and the cylinder (2).

10. A shaved ice machine according to claim 7, characterized in that: The evaporator assembly according to any one of claims 1-6 further includes a tank (16) for holding liquid (17) to be frozen.

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