Evaporator of snowflake ice maker

Abstract

The utility model discloses an evaporator of a snowflake ice maker. The evaporator comprises an evaporator shell, an internal thread and a first bearing seat, a middle pipe is arranged on one side of the evaporator shell, and a driving shaft is arranged on the other side of the evaporator shell. The internal thread is arranged on the inner side wall of the evaporator shell, and the outer side of the evaporator shell is provided with an external thread; the outer threads on the surface of the evaporator shell and the inner threads on the inner side of the evaporator shell are used together in a matched mode, so that the wetting surface can be increased, the ice making efficiency is more effectively improved, and meanwhile the contact area between a refrigerant and the evaporator shell can be increased; the surface of the middle pipe of the evaporator shell and the surface of the driving shaft are each of a double-bearing structure, so that when the evaporator rotates, the shaking deviation is smaller, the rotating precision is higher, and good sealing can be formed through cooperation with common use of the first oil seal and the second oil seal.

Description

Technical Field

[0001] The utility model relates to the technical field of ice making machines, in particular to an evaporator for a flake ice machine. Background Art

[0002] The evaporator of the snowflake ice machine is used in the snowflake ice machine to make snowflakes. Liquid beverages or water are placed in the snowflake ice machine and then fall onto the evaporator body, instantly cooling the water or liquid attached to the outer surface of the evaporator to make snowflakes for consumption.

[0003] In the related technology, a solution of a rotary cylindrical evaporator for a snowflake ice machine (announcement number: CN217929295U) was discovered through searching. When in use, by setting an air pressure balance chamber, a piston plate, a sliding seal, a rotating seal, a limit rod, a limit block, a compression spring and a vent pipe, it is convenient to adjust the air pressure inside the cylinder body, and effectively avoid the axial force generated by the central axis due to the change of air pressure inside the cylinder body at the moment of starting and shutting down the snowflake ice machine, which is beneficial to improving the service life of the central axis.

[0004] However, since the central shaft uses the second bearing to provide rotation during the rotation, there is only one bearing, and the central shaft and the sealing ring swing, the shaking deviation during rotation, and the rotation accuracy is low. Since high-pressure refrigerant is introduced into the cylinder during operation, the refrigerant is easy to leak out through the sealing ring from the inside of the cylinder body; we have introduced an evaporator for a snowflake ice machine. Utility Model Content

[0005] The purpose of the utility model is to provide an evaporator for a snowflake ice machine to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an evaporator of a snowflake ice machine, comprising: an evaporator housing, an internal thread and a first bearing seat;

[0007] A middle tube is provided on one side of the evaporator shell, and a driving shaft is provided on the other side of the evaporator shell;

[0008] The inner thread is arranged on the inner side wall of the evaporator shell, and the outer side of the evaporator shell is provided with an outer thread. The outer thread on the surface of the evaporator shell and the inner thread on the inner side of the evaporator shell are used together. The outer thread can increase the water-wetting surface and more effectively improve the ice-making efficiency. The inner thread can increase the contact area between the refrigerant and the evaporator shell and improve the refrigeration efficiency.

[0009] The first bearing seat is sleeved on one side of the driving shaft, and a fixed shaft is arranged inside the first bearing seat, so that the driving shaft can rotate better inside the first bearing seat when it rotates. A second bearing seat is sleeved on one side of the middle tube, and the middle tube can rotate better inside the second bearing seat when it needs to rotate, so that the rotation is more stable. Two sealing rings are respectively installed on the inner sides of the first bearing seat and the second bearing seat to form a secondary seal to prevent leakage of internal high-pressure refrigerant.

[0010] The sealing mechanism includes a first bearing and a second bearing, the first bearing is sleeved on the surface of the fixed shaft, the first oil seal is sleeved on the surface of the fixed shaft and is located on one side of the first bearing, the second oil seal is sleeved on the surface of the fixed shaft and is located on one side of the first oil seal, and the second bearing is sleeved on the surface of the fixed shaft and is located on one side of the second oil seal. The arrangement of the first bearing and the second bearing can make the rotation of the driving shaft more stable, smoother, and with a smaller swing amplitude. At the same time, the first oil seal and the second oil seal are respectively sleeved on the surface of the fixed shaft, so that a double seal can be formed by using the first oil seal and the second oil seal. A rear cover is arranged inside the first bearing seat on the other side of the fixed shaft, and the arrangement of the rear cover can seal the first bearing seat.

[0011] Preferably, a third bearing is sleeved on the surface of the driving shaft inside the first bearing seat. The provision of the third bearing can allow the driving shaft to rotate more smoothly inside the first bearing seat.

[0012] Preferably, a fourth bearing is sleeved on the surface of the middle tube inside the second bearing seat. The setting of the fourth bearing can make the middle tube rotate more smoothly. A sealing gasket is connected to one side of the fourth bearing inside the second bearing seat. The setting of the sealing gasket can prevent external water from entering the interior of the second bearing seat, and can also prevent the lubricating oil inside the second bearing seat from leaking out.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) By using the external thread on the surface of the evaporator shell and the internal thread on the inside of the evaporator shell together, the water-wetting surface can be increased, which can more effectively improve the ice-making efficiency. At the same time, the contact area between the refrigerant and the evaporator shell can also be increased, thereby improving the cooling efficiency.

[0015] (2) The middle tube of the evaporator shell and the surface of the driving shaft are both equipped with a double bearing structure, namely, a first bearing seat and a second bearing seat, so that when the evaporator shell rotates, the shaking deviation is smaller and the rotation accuracy is higher. At the same time, the first oil seal and the second oil seal can be used together to block the external water and seal the oil inside the driving shaft to avoid oil leakage;

[0016] (3) A sealed waterproof isolation area can be formed by the waterproof grooves on the inner sides of the first bearing seat and the second bearing seat to prevent moisture, dust and other impurities from entering the interior of the third bearing and the fourth bearing inside the first bearing seat and the second bearing seat, which helps to keep the interior of the first bearing seat and the second bearing seat clean and reduce damage to the first bearing seat and the second bearing seat caused by external pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the sealing mechanism of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the utility model in a front view;

[0020] Figure 4 It is a schematic diagram of the structure of the utility model in three dimensions;

[0021] Figure 5 It is a schematic structural diagram of the evaporator housing, the second bearing seat and the first bearing seat of the utility model when they are disassembled.

[0022] In the figure: 1. Evaporator housing; 2. External thread; 3. Second bearing seat; 4. Middle pipe; 5. Driving shaft; 6. First bearing seat; 7. Internal thread; 8. Sealing gasket; 9. Fourth bearing; 10. Waterproof groove; 11. First bearing; 12. Second bearing; 13. Back cover; 14. First oil seal; 15. Second oil seal; 16. Fixed shaft; 17. Third bearing. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: an evaporator of a snowflake ice machine, comprising: an evaporator shell 1, a middle tube 4 is arranged on one side of the evaporator shell 1, and a driving shaft 5 is arranged on the other side of the evaporator shell 1;

[0025] An internal thread 7, wherein the internal thread 7 is arranged on the inner side wall of the evaporator housing 1, and an external thread 2 is arranged on the outer side of the evaporator housing 1;

[0026] A first bearing seat 6, wherein the first bearing seat 6 is sleeved on one side of the driving shaft 5, a fixed shaft 16 is arranged inside the first bearing seat 6, a second bearing seat 3 is sleeved on one side of the middle tube 4, and a waterproof groove 10 is provided inside the first bearing seat 6 and the second bearing seat 3;

[0027] The surface of the fixed shaft 16 is provided with a sealing mechanism, and the first bearing seat 6 and the driving shaft 5 are sealed by the first oil seal 14 and the second oil seal 15 of the sealing mechanism to prevent external water from entering the first bearing seat 6 and the driving shaft 5.

[0028] The sealing mechanism includes a first bearing 11 and a second bearing 12. The first bearing 11 is sleeved on the surface of a fixed shaft 16. The first oil seal 14 is sleeved on the surface of the fixed shaft 16 and is located on one side of the first bearing 11. The second oil seal 15 is sleeved on the surface of the fixed shaft 16 and is located on one side of the first oil seal 14. The second bearing 12 is sleeved on the surface of the fixed shaft 16 and is located on one side of the second oil seal 15. The arrangement of the first bearing 11 and the second bearing 12 can make the rotation of the driving shaft 5 more stable and smoother. At the same time, the first oil seal 14 and the second oil seal 15 are respectively sleeved on the surface of the fixed shaft 16, so that a double seal can be formed by using the first oil seal 14 and the second oil seal 15. The other side of the fixed shaft 16 is located inside the first bearing seat 6 and a rear cover 13 is arranged. The arrangement of the rear cover 13 can seal the first bearing seat 6.

[0029] A third bearing 17 is sleeved on the surface of the driving shaft 5 inside the first bearing seat 6 . The third bearing 17 can make the driving shaft 5 rotate more smoothly inside the first bearing seat 6 .

[0030] The interior of the second bearing seat 3 is located on the surface of the middle tube 4 and a fourth bearing 9 is sleeved thereon. The setting of the fourth bearing 9 allows the middle tube 4 to rotate more smoothly. The interior of the second bearing seat 3 is located on one side of the fourth bearing 9 and a sealing gasket 8 is connected thereto. The setting of the sealing gasket 8 can prevent external water from entering the interior of the second bearing seat 3 and also prevent the lubricating oil inside the second bearing seat 3 from leaking outward.

[0031] Specifically, when using the evaporator of the snowflake ice machine, the outer thread 2 on the surface of the evaporator shell 1 and the inner thread 7 on the inner side of the evaporator shell 1 are used together to increase the water-wetting surface, more effectively improve the ice-making efficiency, and also increase the contact area between the refrigerant and the evaporator shell 1, thereby improving the cooling efficiency;

[0032] The surfaces of the middle tube 4 and the driving shaft 5 of the evaporator housing 1 both adopt a double bearing structure (i.e., the first bearing seat 6 and the second bearing seat 3), so that when the evaporator housing 1 rotates, the shaking deviation is smaller and the rotation accuracy is higher. At the same time, the fixed shaft 16 inside the first bearing seat 6 is provided with a first oil seal 14 and a second oil seal 15. The first oil seal 14 and the second oil seal 15 are used together to block the external water and seal the oil inside the driving shaft 5 to avoid oil leakage. The first bearing 11 and the second bearing 12 respectively provided on the surface of the fixed shaft 16 can increase the rotation of the fixed shaft 16, thereby making the rotation more convenient.

[0033] At the same time, the waterproof groove 10 on the inner side of the first bearing seat 6 and the second bearing seat 3 can form a sealed waterproof isolation area to prevent moisture, dust and other impurities from entering the interior of the third bearing 17 and the fourth bearing 9 inside the first bearing seat 6 and the second bearing seat 3. The waterproof groove 10 can effectively prevent external contaminants such as water, dust, particles, etc. from entering the interior of the first bearing seat 6 and the second bearing seat 3, which helps to keep the interior of the first bearing seat 6 and the second bearing seat 3 clean and reduce damage to the first bearing seat 6 and the second bearing seat 3 caused by external pollution.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A snow ice machine evaporator, characterized in that: include: An evaporator shell (1), wherein a middle tube (4) is provided on one side of the evaporator shell (1), and a driving shaft (5) is provided on the other side of the evaporator shell (1); An internal thread (7), the internal thread (7) being arranged on the inner side wall of the evaporator shell (1), and an external thread (2) being arranged on the outer side of the evaporator shell (1); A first bearing seat (6), the first bearing seat (6) is sleeved on one side of the driving shaft (5), a fixed shaft (16) is arranged inside the first bearing seat (6), a second bearing seat (3) is sleeved on one side of the middle tube (4), and waterproof grooves (10) are provided on the inner sides of the first bearing seat (6) and the second bearing seat (3); A sealing mechanism is provided on the surface of the fixed shaft (16), and the first bearing seat (6) and the driving shaft (5) are sealed by a first oil seal (14) and a second oil seal (15) of the sealing mechanism to prevent external water from entering the first bearing seat (6) and the driving shaft (5).

2. The evaporator of a snow ice machine according to claim 1, characterized in that: The sealing mechanism comprises a first bearing (11) and a second bearing (12); the first bearing (11) is sleeved on the surface of a fixed shaft (16); the first oil seal (14) is sleeved on the surface of the fixed shaft (16) and is located on one side of the first bearing (11); the second oil seal (15) is sleeved on the surface of the fixed shaft (16) and is located on one side of the first oil seal (14); the second bearing (12) is sleeved on the surface of the fixed shaft (16) and is located on one side of the second oil seal (15); and a rear cover (13) is provided on the other side of the fixed shaft (16) and is located inside the first bearing seat (6).

3. The evaporator of a snow ice machine according to claim 1, characterized in that: A third bearing (17) is sleeved on the surface of the driving shaft (5) inside the first bearing seat (6).

4. The evaporator of a snow ice machine according to claim 1, characterized in that: A fourth bearing (9) is sleeved on the surface of the middle tube (4) located inside the second bearing seat (3), and a sealing gasket (8) is connected to one side of the fourth bearing (9) located inside the second bearing seat (3).

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