CN116949273B - Uniform deep cooling treatment tank for roller - Google Patents
Uniform deep cooling treatment tank for roller Download PDFInfo
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- CN116949273B CN116949273B CN202311220138.8A CN202311220138A CN116949273B CN 116949273 B CN116949273 B CN 116949273B CN 202311220138 A CN202311220138 A CN 202311220138A CN 116949273 B CN116949273 B CN 116949273B
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- roller
- treatment tank
- distribution ring
- chuck
- rotary turbine
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- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 238000005507 spraying Methods 0.000 claims abstract description 28
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 238000005273 aeration Methods 0.000 claims abstract description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 70
- 238000009826 distribution Methods 0.000 claims description 48
- 229910052757 nitrogen Inorganic materials 0.000 claims description 35
- 239000007789 gas Substances 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 239000004744 fabric Substances 0.000 abstract description 3
- 230000000171 quenching effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
Abstract
The invention discloses a roller uniform deep cooling treatment tank, which comprises: work frame, slip table, deep-cooling subassembly of roll and fan, the fixed surface of work frame installs rotatory support, one side fixedly connected with of fan rotate the pipe that cup joints in rotatory support inboard, the other end fixedly connected with of pipe with the deep-cooling subassembly side fixedly connected's cloth gaseous ring seat of roll, the top surface fixed mounting of slip table has the positioning seat, one side of positioning seat is equipped with the chuck that the deep-cooling subassembly of subtend roll was arranged. According to the invention, by arranging the novel rolling type cryogenic treatment tank structure, the uniform rotation motion of the rolling type cryogenic component is driven by the driving motor to rotate relative to the roller clamped by the chuck, and the surface of the roller is uniformly sprayed, so that the problem of poor surface quenching effect caused by uneven spraying on the surface of the roller is avoided, and the air flow is conveyed by the fan to perform aeration, so that the spraying liquid is sprayed in a scattering state, and the spraying effect is improved.
Description
Technical Field
The invention relates to the technical field of roller production, in particular to a uniform deep-cooling treatment tank for rollers.
Background
The cryogenic treatment of the roller mainly adopts liquid nitrogen to directly spray. The cryogenic treatment is used as a supplementary process for common heat treatment, and is a process of placing materials in a certain low-temperature environment and treating the materials according to a certain process. Research and application of surface cryogenic treatment can effectively improve mechanical properties such as wear resistance, dimensional stability, strength, toughness and the like of the material, so that the quality of a product can be improved, the service life is prolonged, and the production cost is finally reduced. The cooling process of the quenched metal material can be continued by using ultralow-temperature liquid nitrogen (-196 ℃) as a cooling medium to reach a certain temperature far lower than room temperature, so that the residual austenite existing after conventional heat treatment is further transformed, and the performance of the metal material is improved. At present, a fan or a blower is commonly adopted in a common cryogenic treatment device to blow liquid nitrogen into equipment, so that the workpiece is cooled.
The existing cryogenic treatment tank mainly has a simple tank body structure, such as a public (bulletin) number: the homogenization cryogenic treatment method of the roller disclosed in CN114350928A and the cryogenic treatment tank adopted by the homogenization cryogenic treatment method are characterized in that the homogenization cryogenic treatment of the roller surface is realized by only modifying the cryogenic treatment tank, including optimizing the number, the structure, the position relation with the roller and the like of nozzles, designing a corresponding uniform atomization device, the uniform spraying of liquid nitrogen is realized, but the liquid nitrogen contacts the surface of the high-temperature roller, the liquid nitrogen is instantaneously gasified by the surface temperature of the roller to generate a gasification layer with a heat insulation function, so that the subsequent spraying liquid is in poor contact with the surface of the roller, in addition, the roller is in a static state in the treatment tank, the contact between the bottom surface of the roller and the bottom surface of the treatment tank cannot be in contact with the spraying liquid, the surface cooling effect is uneven, and the surface performance of the roller after quenching is poor. In view of the above, the present invention provides a roller uniform cryogenic treatment tank for solving the existing problems, and aims to solve the problems and improve the practical value by the technology.
Disclosure of Invention
The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the invention is as follows: a roll uniform cryogenic treatment tank comprising: the device comprises a working frame, a sliding table, a rolling cryogenic assembly and a fan, wherein a rotary support is fixedly arranged on the surface of the working frame, a guide pipe sleeved on the inner side of the rotary support in a rotating mode is fixedly connected to one side of the fan, a gas distribution ring seat fixedly connected with the side face of the rolling cryogenic assembly is fixedly connected to the other end of the guide pipe, a positioning seat is fixedly arranged on the top face of the sliding table, a chuck arranged opposite to the rolling cryogenic assembly is arranged on one side of the positioning seat, a liquid nitrogen feeding assembly fixed on the surface of the working frame is rotatably sleeved on the outer side of the rolling cryogenic assembly, and a pressure relief opening for exhausting is formed in the surface of the chuck;
the rotary deep cooling assembly comprises a roller, a circulation outer cylinder and a spraying inner cylinder which are sleeved in sequence, wherein a first rotary turbine and a second rotary turbine are rotatably arranged on two sides of an inner cavity of the roller, the spraying inner cylinder is sleeved on the inner side of the first rotary turbine, the spraying inner cylinder and the first rotary turbine are fixedly arranged on the inner side of the roller, gaps are formed among the roller, the first rotary turbine and the second rotary turbine, a plurality of aeration spray pipes are arranged on the inner side of the circulation outer cylinder, one end of each aeration spray pipe is communicated with an air distribution pipe and is communicated with the inner cavity of an air distribution ring seat through the air distribution pipe, and a plurality of evenly distributed liquid passing holes are formed in the surface of the spraying inner cylinder.
The present invention may be further configured in a preferred example to: the center of the chuck is the same as the center of the drum in height and is located on the same horizontal plane, the chuck is of a disc clamp structure and used for clamping the roller, a feeding hole used for the roller to enter is formed in one side of the drum, the feeding hole is located on the horizontal axis of the drum, and a movable sealing ring in interference butt with the inner side of the feeding hole is arranged on the surface of the chuck.
The present invention may be further configured in a preferred example to: the inside of work frame is equipped with the cover groove that is used for the slip table slip direction, the both sides of slip table are equipped with a plurality of balls with the inboard looks butt of cover groove, the surface of slip table is equipped with a plurality of supporting wheels that are used for removing the support.
The present invention may be further configured in a preferred example to: the liquid nitrogen feeding assembly comprises a liquid distribution ring and a storage tank, wherein the storage tank is fixedly arranged on one side of the liquid distribution ring and communicated with each other, a sealing slip ring is arranged on the surface of the liquid distribution ring, the sealing slip ring is rotationally sleeved on the outer side of a roller, a feeding hole communicated with the inner side of the liquid distribution ring is formed in the surface of the roller, and the feeding hole is circumferentially and uniformly arranged on the surface of the roller and located the inner side of the liquid distribution ring.
The present invention may be further configured in a preferred example to: the surface of cloth liquid ring, storage tank and cylinder all is equipped with thermal-insulated heat preservation, the intercommunication department of storage tank and cloth liquid ring is equipped with the gate that is used for controlling the liquid nitrogen and passes through.
The present invention may be further configured in a preferred example to: the first rotary turbine and the second rotary turbine are of impeller structures and are arranged in opposite directions of impeller blades, synchronous lantern rings are arranged on the inner sides of the first rotary turbine and the second rotary turbine, and the synchronous lantern rings are made of high-temperature-resistant rubber materials and are in interference sleeving connection with the surfaces of the rollers.
The present invention may be further configured in a preferred example to: the surface of the circulation outer cylinder is provided with a plurality of guide holes for liquid nitrogen to enter, the number of the aeration spray pipes is a plurality of aeration spray pipes which are uniformly distributed on the inner side of the circulation outer cylinder in the circumferential direction, and the aeration spray pipes are communicated with the gas distribution ring seat through gas distribution pipes.
The present invention may be further configured in a preferred example to: the fan is a vortex fan structure, the rotary support is of a bearing seat structure and is sleeved on the surface of the guide pipe, the liquid distribution ring and the bottom surface of the storage tank are fixedly connected with the surface of the working machine frame, ring teeth are arranged on the outer side of the roller, and a driving motor in transmission connection with the ring teeth is fixedly arranged on the surface of the working machine frame.
The beneficial effects obtained by the invention are as follows:
1. according to the invention, by arranging the novel rolling type cryogenic treatment tank structure, the uniform rotation motion of the rolling type cryogenic component is driven by the driving motor to rotate relative to the roller clamped by the chuck, and the surface of the roller is uniformly sprayed, so that the problem of poor surface quenching effect caused by uneven spraying on the surface of the roller is avoided, and the air flow is conveyed by the fan to perform aeration, so that the spraying liquid is sprayed in a scattering state, and the spraying effect is improved.
2. According to the invention, a circulation outer cylinder and a spraying inner cylinder structure are arranged in the rolling cryogenic assembly, and air is distributed by using an aeration spray pipe and an air distribution pipe, so that the outside air flow is introduced to enable liquid nitrogen to absorb heat and sublimate in the spraying inner cylinder under the contact of the liquid nitrogen, a low-temperature atmosphere environment is constructed, and even cooling of the surface of a roller is further ensured through the low temperature of the environment.
3. In the invention, the rolling cryogenic assembly and the chuck are adopted for joint sealing, and the relatively forbidden roller is used for sleeving the first rotary turbine and the second rotary turbine, so that the first rotary turbine and the second rotary turbine relatively move inside the roller to push liquid nitrogen inside the roller to circulate back to the central area of the roller, thereby forming a convection effect inside the roller, enabling a gasification layer on the surface of the roller to be quickly separated from the surface of the roller, and further improving the cooling effect.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a roll cryogenic assembly mounting structure according to an embodiment of the invention;
FIG. 3 is a schematic view of a surface structure of a sliding table according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a rolling cryogenic assembly and gas distribution ring base according to an embodiment of the invention;
FIG. 5 is a schematic cross-sectional view of a roll cryogenic assembly according to an embodiment of the invention;
FIG. 6 is a schematic view showing the internal structure of a drum according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a semi-cut surface of a liquid nitrogen dosing assembly according to one embodiment of the present invention.
Reference numerals:
100. a work rack; 110. a rotary support; 120. a driving motor;
200. a sliding table; 210. a positioning seat; 220. a chuck; 201. a support wheel; 202. a ball;
300. a roll cryogenic assembly; 310. a roller; 320. a circulation outer cylinder; 330. spraying an inner cylinder; 340. a first rotating turbine; 350. a second rotating turbine; 321. an aeration spray pipe; 322. an air distribution pipe; 331. a liquid passing hole; 351. a synchronization collar;
400. a blower; 410. a conduit; 420. a gas distribution ring seat;
500. a liquid nitrogen feeding component; 510. a liquid distribution ring; 520. a storage tank; 530. and a sealing slip ring.
Description of the embodiments
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
A roller uniform cryogenic treatment tank provided by some embodiments of the present invention is described below with reference to the accompanying drawings.
Referring to fig. 1 to 7, the invention provides a roller uniform deep cooling treatment tank, which comprises: the device comprises a working frame 100, a sliding table 200, a rolling cryogenic assembly 300 and a fan 400, wherein a rotary support 110 is fixedly arranged on the surface of the working frame 100, a guide pipe 410 which is rotationally sleeved on the inner side of the rotary support 110 is fixedly connected to one side of the fan 400, a gas distribution ring seat 420 which is fixedly connected with the side surface of the rolling cryogenic assembly 300 is fixedly connected to the other end of the guide pipe 410, a positioning seat 210 is fixedly arranged on the top surface of the sliding table 200, a chuck 220 which is arranged opposite to the rolling cryogenic assembly 300 is arranged on one side of the positioning seat 210, a liquid nitrogen feeding assembly 500 which is fixedly sleeved on the surface of the working frame 100 is rotationally sleeved on the outer side of the rolling cryogenic assembly 300, and a pressure relief opening for exhausting is formed in the surface of the chuck 220;
the rolling cryogenic assembly 300 comprises a roller 310, a circulation outer cylinder 320 and a spraying inner cylinder 330 which are sequentially sleeved, wherein a first rotary turbine 340 and a second rotary turbine 350 are rotatably arranged on two sides of an inner cavity of the roller 310, the spraying inner cylinder 330 is sleeved on the inner side of the first rotary turbine 340, the spraying inner cylinder 330 and the first rotary turbine 340 are fixedly arranged on the inner side of the roller 310, gaps are reserved among the roller 310, the first rotary turbine 340 and the second rotary turbine 350, a plurality of aeration spray pipes 321 are arranged on the inner side of the circulation outer cylinder 320, one ends of the aeration spray pipes 321 are communicated with a gas distribution pipe 322 and are communicated with the inner cavity of a gas distribution ring seat 420 through the gas distribution pipe 322, and a plurality of evenly distributed liquid passing holes 331 are formed in the surface of the spraying inner cylinder 330.
In this embodiment, the center of the chuck 220 is the same as the center of the cylinder 310 in height and is located on the same horizontal plane, the chuck 220 is a disc clamp structure for clamping the roller, a feeding hole for the roller to enter is formed in one side of the cylinder 310, the feeding hole is located on the horizontal axis of the cylinder 310, and a movable sealing ring in interference abutting connection with the inner side of the feeding hole is arranged on the surface of the chuck 220.
Specifically, the roller is inserted into the roller 310 for deep cooling treatment through the butt joint of the chuck 220 and the roller 310, and sealing is realized by the butt joint of the surface dynamic seal of the chuck 220 and the inner wall of the feed port, so that liquid nitrogen is prevented from leaking at the port of the roller 310.
In this embodiment, a sleeve groove for guiding the sliding table 200 in a sliding manner is provided on the inner side of the working frame 100, a plurality of balls 202 abutting against the inner side of the sleeve groove are provided on both sides of the sliding table 200, and a plurality of supporting wheels 201 for moving and supporting are provided on the surface of the sliding table 200.
Specifically, the sliding table 200 can be inserted into the inner side of the working frame 100 through the rolling and guiding of the supporting wheel 201 and the balls 202 on the surface of the sliding table 200, so that the chuck 220 is engaged with one side of the rolling cryogenic assembly 300, and the clamped roller is sleeved into the rolling cryogenic assembly 300.
In this embodiment, the liquid nitrogen feeding assembly 500 includes a liquid distribution ring 510 and a storage tank 520, the storage tank 520 is fixedly installed on one side of the liquid distribution ring 510 and is mutually communicated, a sealing slip ring 530 is arranged on the surface of the liquid distribution ring 510, the sealing slip ring 530 is rotationally sleeved on the outer side of the roller 310, a feeding hole communicated with the inner side of the liquid distribution ring 510 is arranged on the surface of the roller 310, and the feeding hole is uniformly distributed on the surface of the roller 310 in a circumferential paying-off manner and is located on the inner side of the liquid distribution ring 510.
Specifically, liquid nitrogen is injected into drum 310 through feed holes in the surface of drum 310 using tank 520 and with liquid distribution ring 510 engaged with drum 310.
Further, the surfaces of the liquid distribution ring 510, the storage tank 520 and the roller 310 are all provided with heat insulation layers, and a gate for controlling the liquid nitrogen to pass through is arranged at the communication part of the storage tank 520 and the liquid distribution ring 510.
In this embodiment, the first rotary turbine 340 and the second rotary turbine 350 are of impeller structures and are arranged in opposite directions of impeller blades, and the inner sides of the first rotary turbine 340 and the second rotary turbine 350 are provided with synchronous collars 351, and the synchronous collars 351 are made of high-temperature-resistant rubber materials and are used for interference sleeving with the surfaces of the rollers.
Specifically, the positioning of the roller and the first and second rotary turbines 340 and 350 is realized by sleeving the synchronous collar 351 on the surface of the roller, so that the first and second rotary turbines 340 and 350 are kept relatively static in the rotary motion of the roller 310, and the liquid nitrogen in the roller 310 is guided to a certain extent.
In this embodiment, the surface of the circulation outer cylinder 320 is provided with a plurality of guide holes for liquid nitrogen to enter, the number of the aeration spray pipes 321 is a plurality and uniformly distributed on the inner side of the circulation outer cylinder 320 in the circumferential direction, and the plurality of aeration spray pipes 321 are communicated with the gas distribution ring seat 420 through the gas distribution pipe 322.
In this embodiment, the fan 400 is a turbofan structure, the rotary support 110 is a bearing seat structure and is sleeved on the surface of the conduit 410, the bottom surfaces of the liquid distribution ring 510 and the storage tank 520 are fixedly connected with the surface of the working frame 100, ring teeth are arranged on the outer side of the roller 310, and the surface of the working frame 100 is fixedly provided with a driving motor 120 in transmission connection with the ring teeth.
Specifically, the fan 400 is rotatably supported by the rotary support 110, the seal slip ring 530 rotatably supports the drum 310, and the rolling motion of the rolling cryogenic assembly 300 is realized by the driving motor 120.
The working principle and the using flow of the invention are as follows:
when the roller cryogenic treatment tank is used, a roller to be treated is fixed on the surface of a chuck 220, and is pushed into the inner side of a working frame 100 by sliding through a supporting wheel 201 and a ball 202 on the surface of a sliding table 200, so that the roller is butted into the inner side of a rolling cryogenic assembly 300, a first rotary turbine 340 and a second rotary turbine 350 are fixedly sleeved on the surface of the roller through an inner side synchronous sleeve ring 351, the first rotary turbine 340 and the second rotary turbine 350 are kept synchronous and static with the roller, dynamic sealing on one side of the roller 310 is realized under the abutting action of the chuck 220 and the surface of the roller 310, the roller 310 is driven by a driving motor 120 to rotate, high-speed air flow is distributed through a guide pipe 410 and a gas distribution ring seat 420 under the operation of a fan 400, the air flow is dispersed through a gas distribution pipe 322 and an aeration spray pipe 321 under the operation of the fan 400, and the air flow can only overflow through a pressure relief opening on the surface of the chuck 220, the internal pressure of the roller 310 and the circulation outer cylinder 320 is caused to be greater than that of the spraying inner cylinder 330, so that liquid nitrogen enters the roller 310 and the circulation outer cylinder 320 through the storage tank 520 and then is sprayed to the surface of the roller through the liquid passing holes 331 under the action of air pressure, air flow is introduced from the outside to enable the liquid nitrogen to absorb heat and sublimate to construct a low-temperature atmosphere environment in the spraying inner cylinder 330 under the contact of the liquid nitrogen, the roller surface is further ensured to be uniformly cooled through the low temperature of the environment, the sublimated air causes the liquid nitrogen to be extremely unstable, the bumping phenomenon is generated, the spraying liquid is caused to be irregularly sprayed in a scattering shape, the action range of the liquid nitrogen and the roller surface is improved, in addition, the irregular spraying effectively avoids the blocking action of a roller surface gasification layer on the liquid nitrogen, the liquid nitrogen can be uniformly contacted with the roller surface, and the liquid nitrogen rotates relative to the roller 310 under the static action of the first rotary turbine 340 and the second rotary turbine 350, the liquid nitrogen in the roller 310 is pushed to flow to the central area of the roller 310, so that a convection effect is formed in the roller 310, the gasified layer on the surface of the roller is quickly separated from the surface of the roller, and the cooling effect is further improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
1. A roller uniform cryogenic treatment tank, comprising: the device comprises a working frame (100), a sliding table (200), a rolling cryogenic assembly (300) and a fan (400), wherein a rotary support (110) is fixedly arranged on the surface of the working frame (100), one side of the fan (400) is fixedly connected with a guide pipe (410) which is rotationally sleeved on the inner side of the rotary support (110), the other end of the guide pipe (410) is fixedly connected with a gas distribution ring seat (420) which is fixedly connected with the side surface of the rolling cryogenic assembly (300), the top surface of the sliding table (200) is fixedly provided with a positioning seat (210), one side of the positioning seat (210) is provided with a chuck (220) which is arranged opposite to the rolling cryogenic assembly (300), the outer side of the rolling cryogenic assembly (300) is rotationally sleeved with a liquid nitrogen feeding assembly (500) which is fixed on the surface of the working frame (100), and the surface of the chuck (220) is provided with a pressure relief opening for exhausting gas;
the rotary deep cooling assembly (300) comprises a roller (310), a circulation outer cylinder (320) and a spraying inner cylinder (330) which are sequentially sleeved, wherein a first rotary turbine (340) and a second rotary turbine (350) are rotatably arranged on two sides of an inner cavity of the roller (310), the spraying inner cylinder (330) is sleeved on the inner side of the first rotary turbine (340), the spraying inner cylinder (330) and the first rotary turbine (340) are fixedly arranged on the inner side of the roller (310), gaps are formed among the roller (310), the first rotary turbine (340) and the second rotary turbine (350), a plurality of aeration spray pipes (321) are arranged on the inner side of the circulation outer cylinder (320), one ends of the aeration spray pipes (321) are communicated with an air distribution pipe (322) and are communicated with the inner cavity of an air distribution ring seat (420) through the air distribution pipe (322), and a plurality of evenly distributed liquid passing holes (331) are formed in the surface of the spraying inner cylinder (330).
2. The uniform deep cooling treatment tank for rollers as claimed in claim 1, wherein the center of the chuck (220) is the same as the center of the roller (310) in height and is located on the same horizontal plane, the chuck (220) is a disc clamp structure for clamping the rollers, a feeding hole for the rollers to enter is formed in one side of the roller (310), the feeding hole is located on the horizontal axis of the roller (310), and a movable sealing ring in interference abutting connection with the inner side of the feeding hole is arranged on the surface of the chuck (220).
3. The roller uniform deep cooling treatment tank according to claim 1, wherein a sleeve groove for sliding guide of a sliding table (200) is arranged on the inner side of the working frame (100), a plurality of balls (202) which are abutted against the inner side of the sleeve groove are arranged on two sides of the sliding table (200), and a plurality of supporting wheels (201) for moving and supporting are arranged on the surface of the sliding table (200).
4. The roller uniform cryogenic treatment tank according to claim 1, wherein the liquid nitrogen feeding assembly (500) comprises a liquid distribution ring (510) and a storage tank (520), the storage tank (520) is fixedly arranged on one side of the liquid distribution ring (510) and communicated with each other, a sealing slip ring (530) is arranged on the surface of the liquid distribution ring (510), the sealing slip ring (530) is rotationally sleeved on the outer side of the roller (310), a feeding hole communicated with the inner side of the liquid distribution ring (510) is arranged on the surface of the roller (310) and is circumferentially and uniformly arranged on the inner side of the liquid distribution ring (510).
5. The uniform deep cooling treatment tank for rollers as claimed in claim 4, wherein the surfaces of the liquid distribution ring (510), the storage tank (520) and the roller (310) are respectively provided with a heat insulation layer, and a gate for controlling the liquid nitrogen to pass through is arranged at the communication part of the storage tank (520) and the liquid distribution ring (510).
6. The uniform deep cooling treatment tank for the roller according to claim 1, wherein the first rotary turbine (340) and the second rotary turbine (350) are of impeller structures and are arranged in opposite directions of impeller blades, synchronous lantern rings (351) are arranged on the inner sides of the first rotary turbine (340) and the second rotary turbine (350), and the synchronous lantern rings (351) are made of high-temperature-resistant rubber materials and are used for interference sleeving with the surface of the roller.
7. The roller uniform deep cooling treatment tank according to claim 1, wherein the surface of the circulation outer cylinder (320) is provided with a plurality of guide holes for liquid nitrogen to enter, the number of the aeration spray pipes (321) is a plurality and is uniformly distributed on the inner side of the circulation outer cylinder (320) in the circumferential direction, and the plurality of aeration spray pipes (321) are communicated with the gas distribution ring seat (420) through gas distribution pipes (322).
8. The uniform deep cooling treatment tank for rollers as claimed in claim 4, wherein the fan (400) is a turbofan fan structure, the rotary support (110) is a bearing seat structure and is sleeved on the surface of the guide pipe (410), the bottom surfaces of the liquid distribution ring (510) and the storage tank (520) are fixedly connected with the surface of the working frame (100), ring teeth are arranged on the outer side of the roller (310), and a driving motor (120) in transmission connection with the ring teeth is fixedly arranged on the surface of the working frame (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311220138.8A CN116949273B (en) | 2023-09-21 | 2023-09-21 | Uniform deep cooling treatment tank for roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311220138.8A CN116949273B (en) | 2023-09-21 | 2023-09-21 | Uniform deep cooling treatment tank for roller |
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| Publication Number | Publication Date |
|---|---|
| CN116949273A CN116949273A (en) | 2023-10-27 |
| CN116949273B true CN116949273B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311220138.8A Active CN116949273B (en) | 2023-09-21 | 2023-09-21 | Uniform deep cooling treatment tank for roller |
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| CN218503264U (en) * | 2022-09-28 | 2023-02-21 | 邯郸市得力标准件有限公司 | Circulating cooling device for bolt production |
| CN218620959U (en) * | 2022-11-08 | 2023-03-14 | 沈阳东博热工科技有限公司 | Pipe part heat treatment device |
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