Torpedo ladle opening cleaning tool bit device with cooling function and using method

Abstract

The invention discloses a torpedo ladle opening cleaning tool bit device with a cooling function. The torpedo ladle opening cleaning tool bit device comprises an upper lug base assembly, a cutter head assembly, a rotation assembly and a cooling mechanism. The upper lug assembly comprises an upper cover and an upper lug arranged on the upper cover; the cutterhead assembly comprises an inner cavity, a lower flange is fixedly arranged on the upper portion of the inner cavity, and a bottom cover is connected to the middle of the inner cavity. The rotary assembly comprises a rotary support, a hydraulic motor and a gear arranged on the hydraulic motor; the cooling mechanism comprises an oil outlet pipe and an oil inlet pipe; the slewing bearing is detachably connected between the upper cover and the lower flange, the upper cover, the inner cavity and the bottom cover jointly form an oil storage tank, the oil inlet pipe and the oil outlet pipe are arranged on the upper cover in a penetrating mode, the oil outlet pipe extends into the inner side of the oil storage tank, the hydraulic motor is arranged on the upper cover in a penetrating mode, and the gear is located on the inner side of the oil storage tank and connected with the slewing bearing in a meshed mode. When the hydraulic motor drives the gear to rotate, the gear drives the cutterhead assembly to rotate through the slewing bearing. By means of the cooling and lubricating device, the cooling and lubricating functions of rotating parts in the cutter head assembly can be achieved at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of tank mouth cleaning equipment for a mixing iron car, and in particular to a torpedo tank mouth cleaning cutter head device with a cooling function and a use method thereof. Background Art

[0002] Torpedo cars are long, torpedo-shaped molten iron tanks used in large blast furnaces. They are also called iron-mixing cars and play an important role in the transportation of molten iron in the modern metallurgical industry. Under actual working conditions, the temperature of the torpedo tank mouth is much lower than the temperature inside the tank. When molten iron is added to and poured out of the torpedo tank, and the tank car is vibrating during driving, the molten iron will slag at the mouth of the tank. In severe cases, the mouth of the tank will shrink or even become blocked, affecting the normal turnover efficiency of the molten iron. At present, torpedo tank cars usually use a tank mouth slag cleaning machine to clean the slag, which solves this problem very well. The mechanical arm drives the end rotating cutter disc assembly to make a relative displacement in the tank mouth, and the rotating cutter disc scrapes and cleans the residue at the tank mouth.

[0003] Since the actual temperature of the torpedo tank mouth is much higher than the temperature of the normal working environment, the temperature of the cutter disc assembly often rises sharply during the operation of the tank mouth slag cleaning machine, which seriously affects the service life of various components. For example, the rotating parts on the cutter disc assembly are easily invalidated due to lack of timely lubrication at high temperatures, resulting in damage to the parts. In addition, there is currently no cooling method for the slag cleaning machine cutter disc that is suitable for working in high temperature environments. In view of this, it is particularly important to solve the cooling problem of the slag cleaning machine cutter disc in the high temperature environment of the tank mouth. Summary of the invention

[0004] In view of the problems existing in the background technology, the present invention provides a torpedo tank mouth cleaning cutter head device with cooling function and a use method, by which the cooling and lubrication functions of the rotating parts inside the cutter disc assembly can be realized simultaneously.

[0005] The technical solution of the present invention to solve the technical problem is as follows:

[0006] According to one aspect of the present invention, a torpedo tank mouth cleaning cutter head device with a cooling function is provided, which includes an upper ear seat assembly, a cutter disc assembly, a rotating assembly and a cooling mechanism. The upper ear seat assembly comprises an upper cover which is generally circular and an upper ear seat arranged on the upper cover, and at least two connecting pins are arranged on the upper ear seat; the cutter disc assembly comprises an inner cavity body which is in the shape of a circular tube, a lower flange is fixedly arranged on the upper part of the inner cavity body, and a bottom cover is detachably connected to the middle part; the rotary assembly comprises a hydraulic motor, a gear arranged at the output end of the hydraulic motor, and a rotary bearing; the cooling mechanism comprises a plurality of oil outlet pipes and oil inlet pipes; wherein: the rotary bearing is connected between the upper cover and the lower flange and is detachably connected to both of them respectively, the upper cover, the inner cavity body and the bottom cover together constitute an oil storage tank, the oil inlet pipe and the oil outlet pipe are respectively arranged on the upper cover, the oil outlet pipe extends into the inner side of the oil storage tank, the hydraulic motor is arranged on the upper cover, the gear is located on the inner side of the oil storage tank and is meshed and connected with the rotary bearing, and when the hydraulic motor drives the gear to rotate, the gear drives the cutter disc assembly to rotate through the rotary bearing.

[0007] Furthermore, the slewing bearing includes a slewing bearing inner ring and a slewing bearing outer ring, a plurality of pairs of threaded holes are evenly arranged along the circumference between the bottom of the upper cover near the outer edge and the slewing bearing outer ring and are connected by bolts; a plurality of pairs of threaded holes are evenly arranged between the lower flange and the slewing bearing inner ring and are connected by bolts; an inner gear ring is arranged on the inner side of the slewing bearing inner ring, and the gear is meshed and connected with the inner gear ring of the slewing bearing inner ring.

[0008] Furthermore, a seal is provided between the lower flange and the outer ring of the slewing bearing.

[0009] Furthermore, an external cooling device is connected between the oil outlet pipe and the oil inlet pipe through a pipeline, and a first circulating pump and a second circulating pump are respectively arranged on two pipelines of the oil outlet pipe, the external cooling device and the oil inlet pipe.

[0010] Furthermore, the bottom end of the oil inlet pipe is flush with the bottom surface of the upper cover, and the oil outlet pipe is movably arranged on the upper cover.

[0011] Furthermore, a connecting ring is fixedly provided at the connection between the inner cavity and the bottom cover, and the connecting ring and the bottom cover are evenly provided with multiple pairs of threaded holes corresponding to each other and are connected by bolts.

[0012] Furthermore, a cylindrical protrusion is provided on the upper part of the bottom cover and is embedded in the inner side of the connecting ring. The cylindrical protrusion is provided with a plurality of annular grooves and a plurality of sealing rings are provided between the cylindrical protrusion and the connecting ring.

[0013] Furthermore, a plurality of handles are provided on the bottom surface of the bottom cover.

[0014] Furthermore, a circular protective plate is provided along the outer circumference of the upper part of the upper cover, and the protective plate includes two semicircular half-protective plate units, and end connecting plates are respectively provided at both ends of the half-protective plate units. An intermediate connecting plate is provided between the corresponding end connecting plates of the two half-protective plate units and is connected by bolts, and the intermediate connecting plate is connected and fixed to the top of the upper cover.

[0015] Furthermore, a plurality of vertical blade mounting seats are evenly arranged on the outside of the inner cavity of the cutter disc assembly, and a vertical blade is installed on each of the vertical blade mounting seats; a plurality of connecting blocks are evenly arranged on the outside of the lower flange, and a transverse blade mounting seat is installed on each of the connecting blocks, and a transverse blade is installed on each of the transverse blade mounting seats.

[0016] Furthermore, a plurality of arc-shaped ribs are respectively arranged between adjacent vertical blade mounting seats.

[0017] According to another aspect of the present invention, a method for using the torpedo can mouth cleaning cutter head device with cooling function described in the above technical solution is provided, using lubricating oil as a cooling medium, when the cutter head assembly is used to clean the high-temperature torpedo can mouth, the method comprises:

[0018] The cooled lubricating oil is sprayed into the oil storage tank through the oil inlet pipe. During the rotation of the cutter head assembly and under the action of its own impact force and separation force, the lubricating oil splashes to form small oil droplets and oil mist to lubricate the gear and the slewing bearing;

[0019] The high-temperature lubricating oil in the oil storage tank is extracted through the oil outlet pipe and cooled.

[0020] Compared with the prior art, the torpedo tank mouth cleaning blade device with cooling function and the use method of the present invention have the following beneficial effects:

[0021] (1) The torpedo tank mouth cleaning cutter head device with cooling function described in the present invention is novel, reasonable and simple in design, and requires little modification to the existing cutter disc assembly structure. The flange at the bottom of the upper ear seat assembly is used as an upper cover, and then the inner cavity in the cutter disc assembly and the bottom cover detachably connected to the middle of the inner cavity form an oil storage tank. The lubricating oil is used as a cooling medium and circulated back and forth through the oil inlet pipe, the oil storage tank, the oil outlet pipe, and the external cooling device through a circulating pump, and the cooled lubricating oil is continuously added to the oil storage tank, thereby completing the cooling of the cutter disc part. In addition, when the lubricating oil is sprayed into the oil storage tank through the oil inlet pipe and during the rotation of the cutter disc assembly, under the action of its own impact force and centrifugal force, the oil splashes to form small oil droplets and oil mist, which lubricates the output gear of the hydraulic motor and the slewing bearing at the upper end of the oil storage tank.

[0022] (2) The cooling medium selected by the present invention is a high-temperature resistant lubricating oil. Since the working environment of the cutter disc is an ultra-high temperature environment, when the cooling medium leaks under extreme conditions, the lubricating oil can be directly burned, avoiding the possibility of explosion when other cooling media leak in an ultra-high temperature environment.

[0023] (3) The device and method described in the present invention have the functions of cooling and energy saving and consumption reduction. During the actual operation of the tank mouth slag cleaning machine, the amount of lubricating oil in the oil storage tank can be adjusted in real time according to the length of time the cutter head assembly is working. When the cutter head assembly needs to run for a long time, the oil outlet pipe in the oil outlet hole can be moved upward to increase the amount of cooled lubricating oil in the oil storage tank to achieve a better cooling effect; when the cutter head assembly only needs to run for a short time, the oil outlet pipe in the oil outlet hole can be moved downward to reduce the amount of lubricating oil in the oil storage tank and reduce the operating energy consumption of the equipment.

[0024] (4) The present invention provides a disassembled bottom cover at the bottom of the oil storage tank. As the equipment runs longer, the lubricating oil in the oil storage tank needs to be replaced regularly. The bottom cover of the oil storage tank only needs to be removed to completely drain the lubricating oil. After the bottom cover is installed again, new lubricating oil can be added. The structure is simple and easy to operate. In addition, a sealing ring is also installed at the bottom cover to prevent leakage of oil in the oil storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 and Figure 2 Schematic diagram of the three-dimensional structure of the torpedo tank mouth cleaning blade device with cooling function from different viewing angles of the present invention;

[0026] Figure 3 It is a top view schematic diagram of a torpedo tank mouth cleaning cutter head device with a cooling function according to the present invention;

[0027] Figure 4 It is a bottom view schematic diagram of a torpedo tank mouth cleaning cutter head device with a cooling function according to the present invention;

[0028] Figure 5 It is a cross-sectional schematic diagram of a torpedo tank mouth cleaning cutter head device with a cooling function according to the present invention;

[0029] Figure 6 is a schematic diagram of the upper ear seat assembly of the present invention;

[0030] Figure 7 It is a schematic diagram of the cutter head assembly and the slewing bearing in the present invention;

[0031] Figure 8 It is a schematic diagram of the lubricating oil cooling process of the present invention;

[0032] In the figure: 1. upper ear seat assembly; 11. upper cover; 12. upper ear seat; 13. connecting pin; 14. protective plate; 141. semi-protective plate unit; 142. end connecting plate; 143. middle connecting plate; 2. cutter head assembly; 21. inner cavity; 22. lower flange; 23. bottom cover; 24. connecting ring; 25. handle; 26. sealing ring; 27. connecting block; 28. transverse blade mounting seat; 29. ​​vertical blade mounting seat; 210. vertical blade; 211. arc rib; 212. transverse blade; 31. hydraulic motor; 32. gear; 33. slewing bearing; 331. slewing bearing inner ring; 332. slewing bearing outer ring; 41. oil outlet pipe; 42. oil inlet pipe; 43. first circulating pump; 44. external cooling device; 45. second circulating pump; 5. oil storage tank; 6. sealing member. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the present disclosure belongs. "Up", "down", "left", "right", "front", "back" and the like used in the patent application specification and claims of the present disclosure are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly; "connected" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The parts not described in detail in the present invention are all known technologies of technicians in the field of this technology.

[0034] Embodiment 1:

[0035] As shown in the accompanying drawings, the present invention provides a torpedo tank mouth cleaning cutter head device with a cooling function, which includes an upper ear seat assembly 1, a cutter disc assembly 2, a rotary assembly and a cooling mechanism.

[0036] The upper ear seat assembly 1 includes an upper cover 11 which is generally circular and an upper ear seat 12 arranged on the upper cover 11. The upper ear seat 12 is provided with at least two connecting pins 13, which are used to connect with a mechanism that drives the entire cutter head device to move, such as a slag cleaning machine robot arm.

[0037] The cutter head assembly 2 is used to clean the accumulated slag at the mouth of the torpedo tank, and includes a cylindrical inner cavity 21, a lower flange 22 is fixedly arranged on the upper part of the inner cavity 21, and a bottom cover 23 is detachably connected in the middle; a plurality of vertical blade mounting seats 29 are evenly arranged on the outer side of the inner cavity 21, and a vertical blade 210 is respectively installed on each vertical blade mounting seat 29; a plurality of connecting blocks 27 are evenly arranged on the outer side of the lower flange 22, and a transverse blade mounting seat 28 is installed on each connecting block 27, and a transverse blade 212 is installed on each transverse blade mounting seat 28. When the cutter head assembly 2 rotates, the slag is cleaned from the tank mouth by each transverse blade 212 and the vertical blade 210. In order to improve the stability of the cutter head assembly 2, a plurality of arc-shaped ribs 211 are respectively arranged between each adjacent vertical blade mounting seat 29.

[0038] The rotary assembly is used to drive the cutter head assembly 2 to rotate, and includes a rotary bearing 33, a hydraulic motor 31 providing driving force, and a gear 32 arranged at the output end of the hydraulic motor 31. The rotary bearing 33 is arranged between the upper cover 11 and the lower flange 22 and is detachably connected to the two. The gear 32 is meshed with the rotary bearing 33. When the hydraulic motor 31 drives the gear 32 to rotate, the gear 32 drives the cutter head assembly 2 to rotate through the rotary bearing 33. Specifically, the rotary bearing 33 includes a rotary bearing inner ring 331 and a rotary bearing outer ring 332. Multiple pairs of threaded holes are evenly arranged along the circumference between the bottom of the upper cover 11 near the outer edge and the rotary bearing outer ring 332, and are connected by bolts; multiple pairs of threaded holes are evenly arranged between the lower flange 22 and the rotary bearing inner ring 331, and are connected by bolts; an inner gear ring is arranged inside the rotary bearing inner ring 331, and the gear 32 is meshed with the inner gear ring of the rotary bearing inner ring 331.

[0039] In this embodiment, the upper cover 11, the inner cavity 21 and the bottom cover 23 together form an oil storage tank 5 for storing a cooling medium for cooling the cutter disc mechanism 2. The cooling medium can be a high temperature resistant lubricating oil. While the cooling medium is transported to the cutter disc mechanism 2, the cooling medium is used to lubricate the rotating parts (such as the slewing bearing 33, the gear 32, etc.) in the cutter disc mechanism 2. The hydraulic motor 31 is arranged on the upper cover 11, and its output end passes through the upper cover 11 and is connected to the gear 32. The gear 32 is located inside the oil storage tank 5.

[0040] The cooling mechanism 4 includes a plurality of oil inlet pipes 42 for spraying the cooling medium (lubricating oil) into the oil storage tank 5 and an oil outlet pipe 41 for discharging the high-temperature cooling medium in the oil storage tank 5. Preferably, there are two oil inlet pipes 42 and two oil outlet pipes 41. Specifically, the upper cover 11 is provided with oil inlet and outlet holes adapted to the oil inlet pipe 42 and the oil outlet pipe 41. The oil inlet pipe 42 and the oil outlet pipe 41 are respectively penetrated through the oil inlet and outlet holes of the upper cover 11, and the oil outlet pipe 41 extends into the inner side of the oil storage tank 5. In a further preferred embodiment, the bottom end of the oil inlet pipe 42 is flush with the bottom surface of the upper cover 11, so that the lubricating oil is conveniently sprayed into the inner side of the oil storage tank 5. When the lubricating oil is sprayed into the oil storage tank 5 through the oil inlet pipe 42 and during the rotation of the cutter head assembly 2, the lubricating oil splashes under the action of its own impact force and centrifugal force to form small oil droplets and oil mist, which will lubricate the output gear 32 of the hydraulic motor 31 and the slewing bearing 33 at the upper end of the oil storage tank 5. The oil outlet pipe 41 is movable up and down and is arranged on the upper cover 11. The length of the oil outlet pipe 41 extending into the oil storage tank 5 can be adjusted in real time according to the operation time of the cutter head assembly 2 to change the storage amount of the cooling medium in the oil storage tank 5. When the cutter head assembly 2 needs to operate for a long time, the oil outlet pipe 41 in the oil outlet hole is moved upward to increase the amount of the cooled lubricating oil in the oil storage tank 5 to achieve a better cooling effect; when the cutter head assembly 2 only needs to operate for a short time, the oil outlet pipe 41 in the oil outlet hole is moved downward to reduce the amount of the lubricating oil in the oil storage tank and reduce the operating energy consumption of the equipment.

[0041] In order to improve the sealing performance of the cutter disc assembly 2 , as a preferred embodiment, a high temperature resistant seal 6 is provided between the lower flange 22 and the slewing bearing outer ring 332 .

[0042] In order to circulate the cooling medium, as a preferred embodiment, the oil outlet pipe 41 is connected to the external cooling device 44 through a pipeline, and the outlet of the external cooling device 44 is connected to the oil inlet pipe 42 through a pipeline. The two pipelines of the oil outlet pipe 41, the external cooling device 44 and the oil inlet pipe 42 are respectively provided with a first circulation pump 43 and a second circulation pump 45. The first circulation pump 43 is used to draw the heated lubricating oil in the oil storage tank 5 to the external cooling device 44 for cooling, and then the cooled lubricating oil is sent to the oil storage tank 5 through the second circulation pump 45 for further cooling and lubrication, so as to realize the circulation of the lubricating oil. It should be noted here that the external cooling device 44 can adopt any one of the cooling methods such as natural air cooling, forced air cooling, vapor compression refrigeration cooling, etc., and is not limited to a certain cooling method.

[0043] To facilitate the connection of the bottom cover 23 in the middle of the inner cavity 21, as a preferred embodiment, a connecting ring 24 is fixedly provided at the connection between the inner cavity 21 and the bottom cover 23. The connecting ring 24 and the bottom cover 23 are evenly provided with multiple pairs of threaded holes corresponding to each other and connected by bolts. The bottom cover 23 can be removed at any time to replace the lubricating oil used for cooling and lubrication in the oil storage tank 5. To improve the sealing performance between the inner cavity 21 and the bottom cover 23, as a further preferred embodiment, a cylindrical protrusion is provided on the upper part of the bottom cover 23 and embedded in the inner side of the connecting ring 24. The cylindrical protrusion is provided with multiple annular grooves and multiple sealing rings 26 are provided between the connecting ring 24.

[0044] In order to facilitate the disassembly and installation of the bottom cover 23 , a plurality of handles 25 are provided on the bottom surface of the bottom cover 23 . When disassembling and installing the bottom cover 23 , the operator can lift it by the handles 25 .

[0045] In order to protect the components on the bottom cover when the cutter head device is performing slag cleaning operations, a circular protective plate 14 is provided along the outer circumference of the upper part of the upper cover 11. The protective plate 14 includes two semicircular half-protective plate units 141. End connecting plates 142 are respectively provided at both ends of the half-protective plate units 141. An intermediate connecting plate 143 is provided between the corresponding end connecting plates 142 of the two half-protective plate units 141 and is connected by bolts. The intermediate connecting plate 143 is connected and fixed to the top of the upper cover 11.

[0046] Example 2

[0047] This embodiment provides a method for using the torpedo tank mouth cleaning cutter head device with a cooling function according to embodiment 1. Lubricating oil is used as a cooling medium. Before the initial use of the cutter disc assembly 2, a certain amount of lubricating oil is generally fed into the oil storage tank 5 through the oil inlet pipe 42. When the cutter disc assembly 2 is used to clean the high-temperature torpedo tank mouth, the method includes:

[0048] The hydraulic motor 31 drives the gear 32 to rotate, and the gear 32 drives the cutter head assembly 2 to rotate through the slewing bearing inner ring 331 .

[0049] The cooled lubricating oil is sprayed into the oil storage tank 5 through the oil inlet pipe 42. During the rotation of the cutter disc assembly 2, and under the action of its own impact force and separation force, a vortex is generated, causing the oil to splash to form small oil droplets and oil mist. The gear 32 and the slewing bearing 33 are lubricated by the small oil droplets and oil mist, while absorbing the heat of the cutter disc assembly 2, and then stored in the oil storage tank 5.

[0050] When the height of the oil in the oil storage tank 5 is above the bottom end of the oil outlet pipe 41 , the high-temperature lubricating oil in the oil storage tank 5 is drawn out through the oil outlet pipe 41 and cooled.

[0051] After the lubricating oil is extracted, it can be sent to the external cooling device 44, where it is cooled and then sent back to the oil storage tank 5, thereby recycling and saving the amount of lubricating oil used.

[0052] In this embodiment, the actual working environment of the cutter disc assembly 2 is an ultra-high temperature environment. The cooling medium used in the device is set to lubricating oil. Even if the device leaks lubricating oil under extreme conditions, the spilled lubricating oil will be directly ignited in the ultra-high temperature environment, avoiding the possibility of explosion in such a high temperature environment when using other cooling media.

Claims

1. A torpedo tank mouth cleaning cutter head device with cooling function, characterized in that: include: An upper ear seat assembly (1) comprises an upper cover (11) which is generally circular and an upper ear seat (12) arranged on the upper cover (11), wherein at least two connecting pins (13) are arranged on the upper ear seat (12); A cutter head assembly (2) comprises an inner cavity (21) in the shape of a circular tube, a lower flange (22) being fixedly arranged on the upper part of the inner cavity (21), and a bottom cover (23) being detachably connected to the middle part; A slewing assembly, comprising a hydraulic motor (31), a gear (32) arranged at an output end of the hydraulic motor (31), and a slewing bearing (33); A cooling mechanism comprising a plurality of oil outlet pipes (41) and an oil inlet pipe (42); The slewing bearing (33) is connected between the upper cover (11) and the lower flange (22) and is detachably connected to the upper cover (11), the inner cavity (21) and the bottom cover (23) together constitute an oil storage tank (5). The oil inlet pipe (42) and the oil outlet pipe (41) are respectively arranged on the upper cover (11), and the oil outlet pipe (41) extends into the inner side of the oil storage tank (5). The hydraulic motor (31) is arranged on the upper cover (11), and the gear (32) is located on the inner side of the oil storage tank (5) and is meshed with the slewing bearing (33). When the hydraulic motor (31) drives the gear (32) to rotate, the gear (32) drives the cutter head assembly (2) to rotate through the slewing bearing (33).

2. A torpedo tank mouth cleaning blade device with cooling function according to claim 1, characterized in that: The slewing bearing (33) comprises a slewing bearing inner ring (331) and a slewing bearing outer ring (332); a plurality of pairs of threaded holes are evenly arranged along the circumference between the bottom of the upper cover (11) near the outer edge and the slewing bearing outer ring (332) and are connected by bolts; a plurality of pairs of threaded holes are evenly arranged between the lower flange (22) and the slewing bearing inner ring (331) and are connected by bolts; an inner gear ring is arranged inside the slewing bearing inner ring (331), and the gear (32) is meshedly connected with the inner gear ring of the slewing bearing inner ring (331); and a sealing member (6) is arranged between the lower flange (22) and the slewing bearing outer ring (332).

3. The torpedo tank mouth cleaning blade device with cooling function according to claim 1, characterized in that: An external cooling device (44) is connected between the oil outlet pipe (41) and the oil inlet pipe (42) via a pipeline, and a first circulation pump (43) and a second circulation pump (45) are respectively arranged on two pipelines of the oil outlet pipe (41), the external cooling device (44) and the oil inlet pipe (42).

4. The torpedo tank mouth cleaning blade device with cooling function according to claim 1, characterized in that: The bottom end of the oil inlet pipe (42) is flush with the bottom surface of the upper cover (11), and the oil outlet pipe (41) is arranged on the upper cover (11) so as to be movable up and down.

5. The torpedo tank mouth cleaning blade device with cooling function according to claim 1, characterized in that: A connecting ring (24) is fixedly provided at the connection between the inner cavity (21) and the bottom cover (23); the connecting ring (24) and the bottom cover (23) are evenly provided with a plurality of pairs of threaded holes corresponding to each other and are connected by bolts.

6. A torpedo tank mouth cleaning blade device with cooling function according to claim 5, characterized in that: A cylindrical protrusion is provided on the upper part of the bottom cover (23) and is embedded in the inner side of the connecting ring (24); a plurality of annular grooves are formed on the cylindrical protrusion and a plurality of sealing rings (26) are provided between the cylindrical protrusion and the connecting ring (24).

7. The torpedo tank mouth cleaning blade device with cooling function according to claim 1, characterized in that: A plurality of handles (25) are provided on the bottom surface of the bottom cover (23).

8. The torpedo tank mouth cleaning blade device with cooling function according to claim 1, characterized in that: A circular protective plate (14) is arranged along the outer circumference of the upper part of the upper cover (11), and the protective plate (14) includes two semicircular semi-protective plate units (141). End connecting plates (142) are respectively arranged at both ends of the semi-protective plate units (141). An intermediate connecting plate (143) is arranged between the corresponding end connecting plates (142) of the two semi-protective plate units (141) and is connected by bolts. The intermediate connecting plate (143) is connected and fixed to the top of the upper cover (11).

9. The torpedo tank mouth cleaning blade device with cooling function according to claim 1, characterized in that: A plurality of vertical blade mounting seats (29) are evenly arranged on the outside of the inner cavity (21) of the cutter disc assembly (2), and each of the vertical blade mounting seats (29) is respectively mounted with a vertical blade (210); a plurality of connecting blocks (27) are evenly arranged on the outside of the lower flange (22), and each of the connecting blocks (27) is mounted with a transverse blade mounting seat (28), and each of the transverse blade mounting seats (28) is mounted with a transverse blade (212); and a plurality of arc-shaped ribs (211) are respectively arranged between adjacent vertical blade mounting seats (29).

10. A method for using the torpedo tank mouth cleaning blade device with cooling function as claimed in any one of claims 1 to 9, characterized in that: Lubricating oil is used as a cooling medium, and when the cutter head assembly (2) is used to clean the mouth of a high-temperature torpedo tank, the method comprises: The cooled lubricating oil is sprayed into the oil storage tank (5) through the oil inlet pipe (42); during the rotation of the cutter head assembly (2), and under the action of its own impact force and separation force, the lubricating oil splashes to form small oil droplets and oil mist to lubricate the gear (32) and the slewing bearing (33); The high-temperature lubricating oil in the oil storage tank (5) is extracted through the oil outlet pipe (41) and cooled.

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