Ice cutting device for tube ice machine

Abstract

The present invention discloses an ice cutting device for a tube ice machine, comprising an outer barrel and an ice outlet arranged on one side of the outer barrel, wherein a rotatable turntable is arranged in the outer barrel; a main shaft is connected to the center of the bottom of the turntable, and the main shaft is driven by a first motor arranged outside the outer barrel; a plurality of sawing mechanisms are arranged on the turntable, and the sawing mechanisms include a sawing shaft rotatably arranged on the turntable, one end of the sawing shaft is connected to a saw blade, and the other end is connected to an output shaft of a second motor fixed to the bottom of the turntable. The first motor drives the main shaft to make the saw blade arranged on the turntable to perform an orbital motion around the center of the turntable; at the same time, the second motor arranged on the turntable drives the saw blade to rotate; when cutting tube ice, it is not attached to the outer barrel of the tube ice machine, and it forms an independent mechanism; it does not pass through gear transmission, so as to avoid metal dust pollution of the tube ice due to gear wear; the transmission drive is carried out from the bottom of the turntable, and the ice is dropped from the top of the turntable, without interfering with each other, which is convenient for installation and maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of tube ice production equipment, and in particular to an ice cutting device for a tube ice machine. Background Art

[0002] Tube ice machine is a type of ice maker. It is named because the ice cubes it produces are in the shape of hollow tubes. The ice-making part of the tube ice machine is the evaporator, which is composed of many vertical parallel steel tubes. The deflector on the top of the evaporator sprinkles water evenly into each steel tube in a spiral manner. Refrigerant flows in the space outside the steel tube and exchanges heat with the water in the tube, and the water in the tube gradually cools down and turns into ice. When the thickness of the tube ice reaches the desired value, the water stops flowing automatically. The hot gas of the refrigerant will enter the evaporator to melt the tube ice and fall off. When the tube ice falls, it is cut into sections by the ice cutting device.

[0003] The existing ice cutting devices on the market are: first, cutting by impacting the tube ice with a rotating cutter, such as the ice cutting device shown in patent publication number CN211012024U, but the tube ice produced by this method is not neat and has many debris; second, cutting by sawing, such as the ice cutting device shown in patent publication number CN102183111A, but the sawing mechanism is attached to the outer barrel of the tube ice machine, and cannot be an independent mechanism, and the size is large, and the mechanism is not convenient for installation and maintenance; in addition, the cutting and feeding movement of this type of ice cutting device is realized by the large gear on the outer ring of the turntable driven by the small gear, and the metal dust generated by the gear wear is directly mixed into the product, so it is not clean enough; and the cutting and feeding movement of the ice cutting device is driven by the shaft that runs through the inside of the tube ice machine barrel, and the power is transmitted from the top to drive the turntable at the lower end of the shaft to rotate, and the transmission shaft is large in size, which is difficult to manufacture and maintain. Therefore, the structure of the existing ice cutting device needs to be improved urgently. Summary of the invention

[0004] In view of this, the present invention proposes an ice cutting device for a tube ice machine, which can solve one of the above problems to at least a certain extent.

[0005] The technical solution of the present invention is achieved in this way:

[0006] A tube ice machine ice cutting device comprises an outer barrel and an ice outlet arranged on one side of the outer barrel, wherein a rotatable turntable is arranged in the outer barrel; a main shaft is connected to the center of the bottom of the turntable, and the main shaft is driven by a first motor arranged outside the outer barrel; a plurality of sawing mechanisms are arranged on the turntable, and the sawing mechanisms comprise a sawing shaft rotatably arranged on the turntable, one end of the sawing shaft is connected to a saw blade, and the other end is connected to the output shaft of a second motor fixed to the bottom of the turntable.

[0007] As a further optional solution for the ice cutting device of the tube ice machine, a support seat extends inward from the side wall of the outer barrel, and the support seat is located below the turntable. A cavity is provided inside the support seat, and the main shaft extends into the cavity and is rotatably connected to the support seat in a sealed manner; the first motor drives the main shaft in the cavity through a transmission belt or a transmission chain.

[0008] As a further optional solution for the tube ice machine ice cutting device, the main shaft is hollow, the bottom end of the main shaft is connected to an electric slip ring, the second motor is connected to an electric cable, the cable enters the main shaft and connects to the upper end of the electric slip ring, and the lower end of the electric slip ring is connected to a power line.

[0009] As a further optional scheme for the ice cutting device of the tube ice machine, an ice falling plate is arranged between the saw blade and the turntable, and the ice falling plate is fixed to the turntable through a support rod; an ice lowering port is arranged on the ice falling plate at a position corresponding to the saw blade; the ice lowering port of the ice falling plate is connected to an inclined plate for transferring the tube ice from the ice lowering port to the turntable; a slide that enables the tube ice to slide down is arranged at the bottom of the turntable; an inclined slide plate is arranged between the slide and the support seat, the inclined slide plate is fixed to the outer barrel, and is arranged at an angle to guide the tube ice to the ice outlet; a plurality of through holes are arranged on the inclined slide plate.

[0010] As a further optional solution of the ice cutting device of the tube ice machine, the ice outlet is connected to an ice outlet channel, and an inclined separation screen is arranged in the ice outlet channel. The separation screen includes a plurality of light rods arranged at intervals.

[0011] As a further optional solution of the ice cutting device of the tube ice machine, the second motor is covered with a protective cover, the protective cover is fixed on the turntable, and a sieve plate is provided at the bottom of the protective cover.

[0012] As a further optional solution of the tube ice machine ice cutting device, a water tank is connected below the outer barrel.

[0013] As a further optional solution for the ice cutting device of the tube ice machine, a base is provided on the turntable, and the sawing shaft is rotatably connected to the base; a bearing group is provided between the sawing shaft and the base; above and below the bearing group, the sawing shaft and the base are connected by a labyrinth seal with a non-contact seal.

[0014] As a further optional solution for the tube ice machine ice cutting device, the bearing group includes a first angular contact ball bearing, a second angular contact ball bearing and a non-contact double-sided sealed deep groove ball bearing arranged from top to bottom; the first angular contact ball bearing and the second angular contact ball bearing are installed relatively to each other, and a spacer sleeve is arranged between the first angular contact ball bearing, the second angular contact ball bearing and the deep groove ball bearing.

[0015] As a further optional scheme for the ice cutting device of the tube ice machine, the saw blade is sealed and connected to the upper end of the sawing shaft through a connecting plate, and the upper part of the sawing shaft is provided with a first shoulder and a second shoulder from bottom to top, and the end face of the first shoulder abuts against a shoulder sleeve for pressing the bearing group from top to bottom, and the outer side wall of the shoulder sleeve protrudes from the outer side face of the first shoulder; the upper end of the base is sealed and connected with a pressure cover, and a transition cover is provided between the shoulder sleeve and the pressure cover; a labyrinth sealing connection is formed between the shoulder sleeve and the transition cover, and a labyrinth sealing connection is formed between the transition cover and the sawing shaft, and the pressure cover is connected with the transition cover. A labyrinth seal connection is formed between the cover and the sawing shaft; a labyrinth seal connection is formed between the upper end surface of the pressure cover and the lower end surface of the connecting plate, and a V-shaped sealing ring is arranged between the pressure cover and the connecting plate; a third shoulder for supporting the bearing group from bottom to top is arranged on the inner wall of the base, and a sealing sleeve for pressing the bearing group from bottom to top is sleeved on the lower part of the sawing shaft; a labyrinth seal connection is formed between the sealing sleeve and the third shoulder of the base; a locking nut threadedly connected to the sawing shaft is arranged below the sealing sleeve; a dust cover connected to the base is arranged below the locking nut.

[0016] The beneficial effects of the present invention are as follows: the first motor drives the main shaft to rotate the turntable, so that the saw blade arranged on the turntable performs a revolution around the center of the turntable; at the same time, the second motor arranged on the turntable drives the saw blade to rotate; when cutting tube ice, it does not depend on the outer barrel of the tube ice machine, and forms an independent mechanism; it does not use gear transmission, so as to avoid the metal dust pollution of the tube ice caused by gear wear; the transmission drive is carried out from the bottom of the turntable, and the ice is dropped from the top of the turntable, without interfering with each other, and it is convenient for installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a sectional front view of an ice cutting device of a tube ice machine of the present invention;

[0019] Figure 2 It is a structural schematic diagram of an ice cutting device for a tube ice machine of the present invention;

[0020] Figure 3 It is a cross-sectional side view of an ice cutting device for a tube ice machine of the present invention;

[0021] Figure 4 A top view of an ice cutting device for a tube ice machine according to the present invention;

[0022] Figure 5 is a schematic diagram of the cooperation between the ice falling plate and the saw blade;

[0023] Figure 6 for Figure 2 A magnified view of middle;

[0024] Figure 7 is a cross-sectional schematic diagram of the sawing mechanism;

[0025] Figure 8 A diagram showing the connection structure between the sawing shaft and the base;

[0026] Fig. 9 for Figure 8 Enlarged view of B.

[0027] In the figure: 1, outer barrel; 11, support seat; 111, cavity; 12, inclined slide plate; 13, ice outlet; 14, ice outlet channel; 15, separation screen; 2, turntable; 21, main shaft; 22, first motor; 23, electric slip ring; 24, slideway; 3, sawing mechanism; 31, sawing shaft; 311, first shaft shoulder; 312, second shaft shoulder; 313, shoulder sleeve; 314, sealing sleeve; 315, locking nut; 32, saw blade; 321, connecting plate; 33, The second motor; 331. Protective cover; 332. Screen plate; 34. Base; 341. Pressure cover; 342. Transition cover; 343. V-shaped sealing ring; 344. Dust cover; 345. Third shaft shoulder; 35. Bearing group; 351. First angular contact ball bearing; 352. Second angular contact ball bearing; 353. Deep groove ball bearing; 354. Spacer; 4. Ice drop plate; 41. Support rod; 42. Ice outlet; 43. Inclined plate; 44. Ice guide plate; 5. Water tank. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] refer to Figure 1-9 , shows an ice cutting device for a tube ice machine, comprising an outer barrel 1 and an ice outlet 13 arranged on one side of the outer barrel 1, wherein a rotatable turntable 2 is arranged in the outer barrel 1; a main shaft 21 is connected to the center of the bottom of the turntable 2, and the main shaft 21 is driven by a first motor 22 arranged outside the outer barrel 1; a plurality of sawing mechanisms 3 are arranged on the turntable 2, and the sawing mechanisms 3 include a sawing shaft 31 rotatably arranged on the turntable 2, one end of the sawing shaft 31 is connected to a saw blade 32, and the other end is connected to the output shaft of a second motor 33 fixed at the bottom of the turntable 2. The output shaft of the second motor 33 is connected to the sawing shaft 31 through a flat key.

[0033] In this way, the outer barrel 1 undertakes the ice-making part of the tube ice machine, and the tube ice enters the outer barrel 1 from top to bottom; the first motor 22 drives the main shaft 21 to rotate the turntable 2, so that the saw blade 32 arranged on the turntable 2 revolves around the center of the turntable 2; at the same time, the second motor 33 arranged on the turntable 2 drives the saw blade 32 to rotate, so as to cut the tube ice; when cutting the tube ice, it is not attached to the outer barrel 1 of the tube ice machine, and it forms an independent mechanism; it does not use gear transmission to avoid metal dust pollution of the tube ice due to gear wear; the transmission drive is carried out from the bottom of the turntable 2, and the ice is dropped from the top of the turntable 2, without interfering with each other, which is convenient for installation and maintenance.

[0034] Specifically, in order to facilitate positioning and supporting the main shaft 21, refer to Figure 1, the side wall of the outer barrel 1 extends inwardly to form a support seat 11, the support seat 11 is located below the turntable 2, a cavity 111 is provided inside the support seat 11, the main shaft 21 extends into the cavity 111 and is rotatably connected to the support seat 11 in a sealed manner; the first motor 22 drives the main shaft 21 in the cavity 111 through a transmission belt or a transmission chain. In this way, the transmission mechanism of the electromechanical part of the main shaft 21 is separated in the cavity 111, and does not come into contact with ice or water, thereby avoiding a short circuit; in addition, in order to facilitate the power supply to the second motor 33, refer to Figure 1 and Figure 7 The main shaft 21 is hollow, the bottom end of the main shaft 21 is connected to an electric slip ring 23, the second motor 33 is connected to a cable, the cable enters the main shaft 21 and connects to the upper end of the electric slip ring 23, and the lower end of the electric slip ring 23 is connected to a power line. Figure 7 The side wall of the main shaft 21 is provided with a hole, and the cable can enter the interior of the main shaft 21 through the hole. In addition, in order to prevent water and ice from affecting the second motor 33, refer to Figure 2 and Figure 6 The second motor 33 is covered with a protective cover 331, and the protective cover 331 is fixed on the turntable 2. The protective cover 331 can reduce the contact of the second motor 33 with water and ice; in actual application, water may inevitably enter the protective cover 331. Figure 6 A sieve plate 332 may be provided at the bottom of the protective cover 331 to prevent water from staying and accumulating inside the protective cover 331 .

[0035] For details in the above scheme, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6An ice drop plate 4 is provided between the saw blade 32 and the turntable 2, and the ice drop plate 4 is fixed to the turntable 2 through a support rod 41; an ice drop port 42 is provided on the ice drop plate 4 at a position corresponding to the saw blade 32; the ice drop port 42 of the ice drop plate 4 is connected to an inclined plate 43 for transferring the tube ice from the ice drop port 42 to the turntable 2; a slide 24 for allowing the tube ice to slide down is provided at the bottom of the turntable 2; an inclined slide plate 12 is provided between the slide 24 and the support seat 11, the inclined slide plate 12 is fixed to the outer barrel 1, and is tilted to guide the tube ice to the ice outlet 13; a plurality of through holes are provided on the inclined slide plate 12. Specifically, the tube ice falls from top to bottom onto the ice-dropping plate 4, and there is a certain distance between the ice-dropping plate 4 and the saw blade 32, which is the cutting length of the tube ice. The distance between the ice-dropping plate 4 and the saw blade 32 can be adjusted by replacing the support rod 41; the saw blade 32 is driven to revolve and rotate by the first motor 22 and the second motor 33 respectively, and the saw blade 32 cuts the tube ice into segments, and the cut tube ice enters the ice-dropping port 42 on the ice-dropping plate 4, and then slides down the inclined plate 43 onto the turntable 2. The tray 2 is provided with an opening for the tube ice to pass through. The tube ice enters the slide 24 through the opening, slides down the slide 24 onto the inclined slide 12, and then slides from the inclined slide 12 to the ice outlet 13, and water flows down from the through hole on the inclined slide 12; wherein, the inclined plate 43, the slide 24 and the inclined slide 12 are all transition parts to prevent the tube ice from violently colliding when sliding to the ice outlet 13; naturally, when setting the slide 24, it is necessary to avoid the second motor 33 to make reasonable use of space. It should also be noted that the inclined plate 43 and the slide 24 rotate with the main shaft 21, while the inclined slide 12 is fixed to the outer barrel 1 and does not rotate.

[0036] Specifically, in the above solution, water and crushed ice are inevitably produced in the production of tube ice, and the existing ice cutting device can only separate water but not crushed ice by setting holes on the plate. Figure 1 and Figure 2 The ice outlet 13 is connected to an ice outlet channel 14, and an inclined separation screen 15 is arranged in the ice outlet channel 14. The separation screen 15 includes a plurality of light rods arranged at intervals. In this way, the separation screen 15 can separate water and crushed ice at the same time. In addition, referring to Figure 2 , a water tank 5 is connected to the lower part of the outer tub 1; thus, the water separated from the inclined slide 12 and the water and crushed ice separated from the separation screen 15 will fall into the water tank 5 for reuse. It should be noted that the support seat 11 does not completely block the internal passage of the outer tub 1, so that the water separated from the inclined slide 12 can enter the water tank 5.

[0037] Specifically in the above scheme, after the tube ice produced by the ice-making part of the tube ice machine falls onto the ice-dropping plate 4, it is cut by the saw blade 32. At the same time, since the saw blade 32 is in orbit, the upper surface of the saw blade 32 moves along the lower surface of the tube ice. When the saw blade 32 is separated from the tube ice, the tube ice falls back onto the ice-dropping plate 4. Since there is a certain distance between the saw blade 32 and the ice-dropping plate 4, in order to prevent the tube ice from falling onto the ice-dropping plate 4 and causing a violent collision and resulting in crushed ice, reference is made to FIG. Figure 4 and Figure 5 An ice guide plate 44 is provided on the ice falling plate 4. The ice guide plate 44 is located behind the moving direction of the saw blade 32. The ice guide plate 44 is provided with an inclined surface for guiding ice, so that the tube ice can slide along the inclined surface onto the ice falling plate 4, thereby avoiding severe collision.

[0038] Specifically in the above scheme, a maintenance window (not marked in the figure) can be set on the outer barrel 1. Through the maintenance window, after the equipment is installed and fixed, the sawing mechanism 3 can be taken out as a whole without disassembling the ice cutting device as a whole, so as to facilitate the replacement of the saw blade 32 and maintenance.

[0039] In some specific embodiments, when cutting tube ice, the water flow is turbulent and splashes, and the air humidity is high, so the sawing shaft 31 needs to be adequately protected; in addition, in order to ensure that the cut of the tube ice is flush, the sawing shaft 31 needs to maintain a high speed, so the sawing shaft 31 needs to reduce heat generation to avoid shortening the service life; Figure 7 , Figure 8 and Fig. 9 The turntable 2 is provided with a base 34, and the sawing shaft 31 is rotatably connected to the base 34; a bearing group 35 is provided between the sawing shaft 31 and the base 34; above and below the bearing group 35, the sawing shaft 31 and the base 34 are both connected by a non-contact sealed labyrinth seal. The non-contact sealed labyrinth seal connection can ensure the sealing performance while avoiding the frictional heat between the sawing shaft 31 and the base 34; on the one hand, it can reduce the heat to ensure the service life, and on the other hand, it can avoid the occurrence of debris contaminating the tube ice due to wear.

[0040] For details of the above scheme, please refer to Figure 8The bearing group 35 includes a first angular contact ball bearing 351, a second angular contact ball bearing 352 and a non-contact double-sided sealed deep groove ball bearing 353 arranged from top to bottom; the first angular contact ball bearing 351 and the second angular contact ball bearing 352 are relatively installed, and a spacer sleeve 354 is arranged between the first angular contact ball bearing 351, the second angular contact ball bearing 352 and the deep groove ball bearing 353. Among them, the arrangement of the first angular contact ball bearing 351 and the second angular contact ball bearing 352 can excellently withstand axial force, and the deep groove ball bearing 353 can withstand radial load and overturning moment. The three bearings can be combined to maintain rotation accuracy, and the three bearings are separated by the spacer sleeve 354, which is convenient for storing grease and reserving sufficient grease margin space, reducing grease stirring and heating, which is conducive to the sawing shaft 31 to withstand a higher speed, maintain rotation accuracy and withstand a higher overturning moment; so that the sawing shaft 31 can withstand a speed below 5000r / min.

[0041] Specifically, regarding the connection between the lower portion of the sawing shaft 31 and the base 34, refer to Figure 8 The inner wall of the base 34 is provided with a third shoulder 345 for supporting the bearing group 35 from bottom to top, and the lower part of the sawing shaft 31 is sleeved with a sealing sleeve 314 for pressing the bearing group 35 from bottom to top, wherein the third shoulder 345 supports the outer ring of the bearing group 35, and the sealing sleeve 314 supports the inner ring of the bearing group 35, and the sealing sleeve 314 forms a contact seal with the sawing shaft 31 through a sealing ring, and the sealing sleeve 314 rotates with the sawing shaft 31; the outer wall of the sealing sleeve 314 and the inner wall of the third shoulder 345 form a labyrinth seal connection; in order to prevent the sealing sleeve 314 from falling out, a locking nut 315 threadedly connected to the sawing shaft 31 is provided below the sealing sleeve 314; a dust cover 344 connected to the base 34 is provided below the locking nut 315, and the dust cover 344 has a certain waterproof effect in addition to dustproof.

[0042] Regarding the connection between the upper portion of the sawing shaft 31 and the base 34, refer to Figure 8 and Fig. 9The saw blade 32 is sealed and connected to the upper end of the sawing shaft 31 through a connecting plate 321. The upper part of the sawing shaft 31 is provided with a first shoulder 311 and a second shoulder 312 from bottom to top. The end surface of the first shoulder 311 abuts against a shoulder sleeve 313 for pressing the bearing group from top to bottom. The outer side wall of the shoulder sleeve 313 protrudes from the outer side surface of the first shoulder 311. The upper end of the base 34 is sealed and connected with a pressure cover 341. A transition cover 342 is provided between the shoulder sleeve 313 and the pressure cover 341. The pressure cover 341 is pressed against the outer ring of the bearing group through the transition cover 342, and the end of the first shoulder 311 is pressed against the inner ring of the bearing group through the shoulder sleeve 313. The shoulder sleeve 313 and the inner side wall of the shoulder sleeve 313 protrude from the outer side surface of the first shoulder 311. The sawing shaft 31 forms a contact seal, the shoulder sleeve 313 rotates with the sawing shaft 31, and the outer side surface and upper end surface of the shoulder sleeve 313 form a labyrinth seal connection with the transition cover 342; the inner side surface of the transition cover 342 forms a labyrinth seal connection with the outer side surface of the first shaft shoulder 311, and the upper end surface of the transition cover 342 forms a labyrinth seal connection with the end surface of the second shaft shoulder 312; the inner side surface of the pressure cover 341 forms a labyrinth seal connection with the outer side surface of the second shaft shoulder 312; the upper end surface of the pressure cover 341 forms a labyrinth seal connection with the lower end surface of the connecting plate 321, and an annular groove is formed between the pressure cover 341 and the connecting plate 321, and a V-shaped sealing ring 343 is arranged in the annular groove. It should be noted that the upper part of the sawing shaft 31 encounters more water splashes than the lower part, so the upper part of the sawing shaft 31 is provided with more than three labyrinth connections and a V-shaped sealing ring is further sealed to ensure good sealing performance.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ice cutting device for a tube ice machine, comprising an outer barrel and an ice outlet arranged on one side of the outer barrel, characterized in that: A rotatable turntable is arranged in the outer barrel; a main shaft is connected to the center of the bottom of the turntable, and the main shaft is driven by a first motor arranged outside the outer barrel; a plurality of sawing mechanisms are arranged on the turntable, and the sawing mechanisms include a sawing shaft rotatably arranged on the turntable, one end of the sawing shaft is connected to a saw blade, and the other end is connected to an output shaft of a second motor fixed to the bottom of the turntable; A support seat is extended inwardly from the side wall of the outer barrel, and the support seat is located below the turntable. A cavity is provided inside the support seat, and the main shaft extends into the cavity and is rotatably connected to the support seat in a sealed manner; the first motor drives the main shaft in the cavity through a transmission belt or a transmission chain; The main shaft is hollow, the bottom end of the main shaft is connected to an electric slip ring, the second motor is connected to an electric cable, the cable enters the main shaft and connects to the upper end of the electric slip ring, and the lower end of the electric slip ring is connected to a power line; A base is arranged on the turntable, and the sawing shaft is rotatably connected to the base; a bearing group is arranged between the sawing shaft and the base; above and below the bearing group, the sawing shaft and the base are connected by a non-contact labyrinth seal.

2. The ice cutting device for a tube ice machine according to claim 1, characterized in that: An ice drop plate is provided between the saw blade and the turntable, and the ice drop plate is fixed to the turntable through a support rod; an ice drop port is provided on the ice drop plate at a position corresponding to the saw blade; the ice drop port of the ice drop plate is connected to an inclined plate for transferring the tube ice from the ice drop port to the turntable; a slide for sliding the tube ice down is provided at the bottom of the turntable; an inclined slide plate is provided between the slide and the support seat, the inclined slide plate is fixed to the outer barrel, and is inclinedly arranged to guide the tube ice to the ice outlet; a plurality of through holes are provided on the inclined slide plate.

3. The ice cutting device of a tube ice machine according to claim 2, characterized in that: The ice outlet is connected to an ice outlet channel, and an inclined separation screen is arranged in the ice outlet channel. The separation screen includes a plurality of light rods arranged at intervals.

4. The ice cutting device for a tube ice machine according to claim 2 or 3, characterized in that: The second motor is covered with a protective cover, which is fixed on the turntable, and a sieve plate is provided at the bottom of the protective cover.

5. The ice cutting device for a tube ice machine according to claim 4, characterized in that: A water tank is connected below the outer barrel.

6. The ice cutting device for a tube ice machine according to claim 1, characterized in that: The bearing group includes a first angular contact ball bearing, a second angular contact ball bearing and a non-contact double-sided sealed deep groove ball bearing arranged from top to bottom; the first angular contact ball bearing and the second angular contact ball bearing are relatively installed, and spacers are arranged between the first angular contact ball bearing, the second angular contact ball bearing and the deep groove ball bearing.

7. The ice cutting device for a tube ice machine according to claim 6, characterized in that: The saw blade is sealed and connected to the upper end of the sawing shaft through a connecting plate. The upper part of the sawing shaft is provided with a first shoulder and a second shoulder from bottom to top. The end face of the first shoulder abuts against a shoulder sleeve for pressing the bearing group from top to bottom, and the outer side wall of the shoulder sleeve protrudes from the side of the first shoulder. The upper end of the base is sealed and connected with a pressure cover, and a transition cover is provided between the shoulder sleeve and the pressure cover. A labyrinth seal connection is formed between the shoulder sleeve and the transition cover, and a labyrinth seal connection is formed between the transition cover and the sawing shaft. A labyrinth seal connection is formed between the pressure cover and the sawing shaft. A labyrinth seal connection is formed between the upper end surface of the pressure cover and the lower end surface of the connecting plate, and a V-shaped sealing ring is arranged between the pressure cover and the connecting plate; the inner wall of the base is provided with a third shoulder for supporting the bearing group from bottom to top, and the lower part of the sawing shaft is sleeved with a sealing sleeve for pressing the bearing group from bottom to top; a labyrinth seal connection is formed between the sealing sleeve and the third shoulder of the base; a locking nut threadedly connected to the sawing shaft is arranged below the sealing sleeve; a dust cover connected to the base is arranged below the locking nut.

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