CN113999963A - High-performance heat treatment production line for large-caliber thin-wall seamless steel pipe - Google Patents
High-performance heat treatment production line for large-caliber thin-wall seamless steel pipe Download PDFInfo
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- CN113999963A CN113999963A CN202111194054.2A CN202111194054A CN113999963A CN 113999963 A CN113999963 A CN 113999963A CN 202111194054 A CN202111194054 A CN 202111194054A CN 113999963 A CN113999963 A CN 113999963A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 80
- 239000010959 steel Substances 0.000 title claims abstract description 80
- 238000010438 heat treatment Methods 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 93
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 230000008093 supporting effect Effects 0.000 claims description 45
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims 3
- 238000010030 laminating Methods 0.000 claims 2
- 239000000110 cooling liquid Substances 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 238000010791 quenching Methods 0.000 description 8
- 230000000171 quenching effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
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- 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
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
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- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/085—Cooling or quenching
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- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a high-performance heat treatment production line of a large-diameter thin-wall seamless steel pipe, wherein a detachable support mechanism is sleeved outside a cooling pipe, the support mechanism comprises a fixed ring assembly sleeved outside the cooling pipe, adjusting mechanisms are equidistantly arranged outside the fixed ring assembly, the other end of a length adjusting mechanism is connected with a buffer mechanism, balls contacted with the inner wall of the steel pipe are fixed at the other end of the buffer mechanism, the support mechanism is fixed by designing the fixed ring assembly sleeved outside the cooling pipe, the positions of the balls can be adjusted by the adjusting mechanisms, so that the balls are positioned at a proper position, the cooling pipe can be damped by the buffer mechanism and is tightly contacted with the interior of the steel pipe, the stability of the cooling pipe is ensured, the cooling pipe cannot be bent, sprayed cooling liquid is uniform, and the heat treatment quality of the steel pipe is ensured, and simultaneously, the steel pipe is prevented from being scratched by bending of the cooling pipe.
Description
Technical Field
The invention relates to the field of steel pipe heat treatment, in particular to a high-performance heat treatment production line for a large-caliber thin-wall seamless steel pipe.
Background
The heat treatment of the seamless steel pipe has the functions of improving the mechanical properties of the steel pipe and the precision steel pipe, eliminating residual stress and improving the cutting processability of steel pipe metal. The quenching includes surface quenching and integral quenching. Wherein the surface quenching has wide application because of small deformation, oxidation and decarburization, and has the advantages of high external strength, good wear resistance, good internal toughness and strong impact resistance. In order to improve the mechanical properties of surface-quenched parts, heat treatment such as quenching and tempering or normalizing is often performed as a preliminary heat treatment. When the steel pipe is subjected to heat treatment, an induction heating mode is usually adopted, and the machining efficiency of the steel pipe is improved on the premise of ensuring the quality of the steel pipe. The steel pipe is placed in an inductor, the inductor generates a magnetic field under the action of alternating current with certain frequency, the steel pipe generates induction current under the action of the magnetic field, the surface of the steel pipe is rapidly heated to a fire melting temperature, and water is sprayed to the surface of the seamless steel pipe immediately. The surface of the seamless steel pipe subjected to surface induction heating quenching is hard and wear-resistant, and the center of the seamless steel pipe keeps better strength and toughness. The heat treatment process generally comprises three processes of heating, heat preservation and cooling, and sometimes only comprises two processes of heating and cooling. These processes are connected with each other without interruption. Heating is one of the important steps of heat treatment. The heating methods for metal heat treatment are many, and charcoal and coal are used as heat sources at the earliest, and liquid and gas fuels are used recently. The application of electricity makes the heating easy to control and has no environmental pollution.
When the existing steel pipe heat treatment production line is used for quenching a steel pipe, the steel pipe slowly moves forwards while rotating through a pushing mechanism, after the steel pipe is heated, the outer side of the steel pipe is cooled through a cooler, meanwhile, the cooling pipe is inserted into the inner side of the steel pipe for internal cooling, so that the quenching purpose is achieved, the cooling pipe is usually supported through a support frame, when the tail end of the steel pipe is heated, in order to ensure that the steel pipe can be quenched in time, the position of the cooling pipe cannot change, but the cooling pipe is not supported by the support frame any more, so that in the cooling process, the far end of the cooling pipe sags due to the weight of the cooling pipe and the weight of cooling liquid in the cooling pipe, the cooling of the inner wall of the steel pipe is uneven, the heat treatment effect of the inner wall of the steel pipe is influenced, and even the cooling pipe bends to be in contact with the inner wall of the steel pipe due to the weight, thereby causing the cooling pipe to scratch the steel pipe and thus causing the product to be damaged.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a high-performance heat treatment production line for large-caliber thin-wall seamless steel pipes, which ensures the stability of a cooling pipe and prevents the cooling pipe from being bent, so that sprayed cooling liquid is uniform, the heat treatment quality of the steel pipes is ensured, and the steel pipes are prevented from being scratched by the bending of the cooling pipe.
In order to solve the technical problems, the invention provides the following technical scheme: the high-performance heat treatment production line for the large-caliber thin-wall seamless steel pipes comprises a cooling box, wherein a driving mechanism used for supporting the steel pipes is arranged on one side of the cooling box at equal intervals, the top end of the driving mechanism is movably connected with two disc parts connected through a chain, one side of the driving mechanism which is positioned on the far end of one side of the cooling box is provided with a height adjusting device, the top end of the height adjusting device is fixed with a cooling pipe extending to the inner side of the cooling box, the outer side of the cooling pipe is provided with rotary spray heads at equal intervals, supporting frames used for supporting the cooling pipe are uniformly arranged between the height adjusting device and the driving mechanism as well as between the driving mechanism and the cooling box, the other side of the cooling box is sequentially provided with a first heating box attached to the cooling box and a second heating box with a larger gap between the first heating box and the first heating box, and a driving mechanism is arranged between the first heating box and the second heating box, and a plurality of driving mechanisms are arranged at the other side of the second heating box in an equal distance.
As a preferred technical scheme of the invention, the outer side of the cooling pipe is sleeved with a detachable supporting mechanism, the supporting mechanism comprises a fixed ring assembly sleeved on the outer side of the cooling pipe, the outer side of the fixed ring assembly is equidistantly provided with adjusting mechanisms, the other end of the length adjusting mechanism is connected with a buffering mechanism, and the other end of the buffering mechanism is fixedly provided with a ball which is in contact with the inner wall of the steel pipe.
As a preferable technical scheme of the present invention, the fixing ring assembly includes an outer ring and an inner ring, wherein one parting surface of the outer ring is connected to the inner ring through a hinge and is openable, a gap is formed between the outer ring and the inner ring, the outer ring and the inner ring are connected through a connecting rod, two separable ends of the outer ring are welded with lugs, a fastener for forming the outer ring into a complete whole is arranged between the two lugs in a penetrating manner, and a fixing bolt for fixing the support mechanism is arranged in a penetrating manner on an inner side thread of the outer ring.
As a preferable technical scheme of the invention, the bottom end of the fixing bolt is movably connected with an anti-skid rubber pad which is abutted with the cooling pipe.
As a preferred technical scheme of the invention, the adjusting mechanism comprises a support sleeve, the support sleeve is equidistantly arranged on the outer side of the outer ring, a threaded rod penetrates through the inner side of the support sleeve, a limiting guide assembly is arranged between the support sleeve and the threaded rod, and the top end of the support sleeve is movably connected with a threaded ring screwed with the threaded rod.
As a preferable technical solution of the present invention, a threaded ring screwed with the threaded rod is disposed at the top end of the support sleeve, and a clamping block fastened with a clamping ring fixed at the outer side of the support sleeve is fixed at the bottom end of the threaded ring.
As a preferred technical scheme of the invention, the limiting guide assembly comprises a limiting block fixedly installed on the outer side of the bottom end of the threaded rod, and a limiting groove matched with the limiting block is formed in the outer side of the supporting sleeve.
As a preferable technical scheme of the invention, the buffer mechanism comprises a fixed sleeve, the inner side of the fixed sleeve is movably connected with a lifting rod, an elastic part positioned on the inner side of the fixed sleeve is placed between the bottom surface of the lifting rod and the bottom wall of the fixed sleeve, and the other end of the lifting rod is provided with a ball.
As a preferred technical scheme of the invention, the outer side of the fixed sleeve is provided with a sliding groove, and the outer wall of the bottom end of the lifting rod is fixed with a sliding block which is matched with the sliding groove and used for limiting the lifting rod.
As a preferred embodiment of the present invention, the elastic member may be a spring.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. the support mechanism is fixed by the aid of the fixing ring assembly sleeved on the outer side of the cooling pipe, the position of the ball can be adjusted by the adjusting mechanism, so that the ball is located at a proper position, the cooling pipe can be damped by the buffer mechanism, and the ball is in close contact with the inside of the steel pipe, so that the stability of the cooling pipe is guaranteed, the cooling pipe cannot be bent, sprayed cooling liquid is uniform, the quality of heat treatment of the steel pipe is guaranteed, and the steel pipe is prevented from being scratched by bending of the cooling pipe;
2. the clamping block is clamped with the clamping ring, so that the threaded ring and the supporting sleeve form a complete whole, the threaded ring can rotate, the threaded rod is guided by the matching of the limiting block and the limiting groove, the threaded rod can only move along the radial direction of the threaded rod, and the extending length of the threaded rod is changed by screwing the threaded ring and the threaded rod, so that the position of the ball is changed, the ball can be in close contact with a steel pipe, and the stability of the cooling pipe is ensured;
3. through having designed the lifter that sets up at the fixed sleeving inboard to be convenient for the lifter slide in the fixed sleeving inboard, through the cooperation of slider with the spout, make the lifter can not drop simultaneously, cushion and the shock attenuation to the cooling tube through the effect of elastic component, thereby guaranteed the stability of ball and steel pipe contact.
Drawings
FIG. 1 is a schematic perspective view of a production line according to the present invention;
FIG. 2 is a schematic perspective view of the supporting mechanism according to the present invention;
FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of a portion of the structure shown at B in FIG. 2 according to the present invention;
wherein: 1. a height adjustment device; 2. a support frame; 3. a cooling tube; 4. a support mechanism; 401. a fastener; 402. a tab; 403. an outer ring; 404. a connecting rod; 405. an inner ring; 406. a support sleeve; 407. a ball bearing; 408. a lifting rod; 409. a threaded rod; 410. a limiting block; 411. a limiting groove; 412. an anti-skid rubber pad; 413. fixing the bolt; 414. a clamping block; 415. a snap ring; 416. a threaded ring; 417. fixing the sleeve; 418. an elastic member; 419. a slider; 420. a chute; 5. rotating the spray head; 6. a cooling tank; 7. a first heating tank; 8. a second heating chamber; 9. a drive mechanism.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Examples
Referring to fig. 1, the invention provides a high-performance heat treatment production line for large-diameter thin-wall seamless steel tubes, the production line comprises a cooling tank 6, a driving mechanism 9 for supporting the steel tubes is equidistantly arranged on one side of the cooling tank 6, the top end of the driving mechanism 9 is movably connected with two disk pieces connected through a chain, the steel tubes are moved and rotated by the disk pieces with arc shapes and two disk pieces rotating in the same direction, a height adjusting device 1 is arranged on one side of the driving mechanism 9 positioned at the farthest end of one side of the cooling tank 6, a cooling tube 3 extending to the inner side of the cooling tank 6 is fixed at the top end of the height adjusting device 1, the height of the cooling tube 3 can be adjusted through the action of the height adjusting device 1, the cooling tube 3 is concentric with the steel tubes, so that the cooling uniformity of the inner walls of the steel tubes is ensured, and equidistantly-rotating spray heads 5 are arranged on the outer sides of the cooling tube 3, the supporting frames 2 used for supporting the cooling pipes 3 are arranged between the height adjusting device 1 and the driving mechanism 9, the two adjacent driving mechanisms 9 and the cooling box 6, the cooling pipes 3 can be stably supported through the supporting frames 2, meanwhile, the height of the cooling pipes 3 can be adjusted through the supporting frames 2, the cooling pipes 3 are supported through the height adjusting device 1 and the supporting frames 2, the stability of the cooling pipes 3 is guaranteed, the stability of the movement of the steel pipes is guaranteed through the driving mechanisms 9, and the steel pipes are supported at the same time;
as a further embodiment of the present embodiment, as shown in fig. 1, a first heating box 7 attached to the cooling box 6 and a second heating box 8 having a larger gap with the first heating box 7 are sequentially disposed on the other side of the cooling box 6, and a driving mechanism 9 is disposed between the first heating box 7 and the second heating box 8 to support the heated steel pipe, so as to prevent the steel pipe from softening and bending after being heated, and a plurality of driving mechanisms 9 are equidistantly disposed on the other side of the second heating box 8 to support and drive the steel pipe to be processed through the driving mechanism 9, so as to ensure the subsequent work.
As a further embodiment of this embodiment, as shown in fig. 1 and fig. 2, a detachable support mechanism 4 is sleeved outside the cooling pipe 3, the support mechanism 4 includes a fixed ring assembly sleeved outside the cooling pipe 3, so that the fixed ring assembly and the cooling pipe 3 form a stable whole, an adjusting mechanism is equidistantly arranged outside the fixed ring assembly, the other end of the length adjusting mechanism is connected with a buffer mechanism, and a ball 407 contacting with the inner wall of the steel pipe is fixed at the other end of the buffer mechanism;
when the device is used, the supporting mechanism 4 is fixed on the outer side of the cooling pipe 3 through the fixed ring assembly, the position of the ball 407 is adjusted through the adjusting mechanism, the supporting mechanism 4 is suitable for steel pipes with different diameters, the ball 407 is moved to a proper position through the adjusting mechanism, the ball 407 is in contact with the inner wall of the steel pipe after the supporting mechanism 4 is positioned on the inner side of the steel pipe, the cooling pipe 3 vibrates in the process of transferring cooling liquid, the cooling pipe 3 is damped through the buffer mechanism, the cooling pipe 3 and the support frame 2 are prevented from being abraded, and meanwhile, the ball 407 cannot be accurately adjusted to a proper position through the adjusting mechanism, so that the diameter of a circle at the farthest end of the balls 407 is larger than that of the inner wall of the steel pipe when the device is used, and the ball 407 can be stably contacted with the inner wall of the steel pipe through the buffer mechanism;
as a further implementation manner of this embodiment, as shown in fig. 2 and fig. 3, the fixed ring assembly includes an outer ring 403 whose parting surface is connected with the cooling pipe 3 by a hinge and an inner ring 405 with a gap therebetween, the outer ring 403 is connected with the inner ring 405 by a connecting rod 404, two separable ends of the outer ring 403 are welded with tabs 402, a fastener 401 for forming the outer ring 403 into a complete whole is inserted between the two tabs 402, the fastener 401 can be divided into a bolt penetrating through the tabs 402 and a nut screwed with a screw, a fixing bolt 413 for fixing the supporting mechanism 4 is inserted through an inner side thread of the outer ring 403, and the bottom end of the fixing bolt 413 is movably connected with an anti-skid rubber pad 412 abutting against the cooling pipe 3;
when needing to fix supporting mechanism 4, because the one end accessible hinged joint of outer loop 403, thereby can open and shut outer loop 403, rethread connecting rod 404 drives opening and shutting of inner ring 405, establish supporting mechanism 4 cover behind the outside of cooling tube 3, merge outer loop 403, rethread fastener 401 merges outer loop 403 into a complete whole, rotate fixing bolt 413 again, the removal through fixing bolt 413 promotes anti-skidding rubber pad 412 and cooling tube 3 in close contact with, thereby fix supporting mechanism 4, the stability of supporting mechanism 4 installation has been guaranteed, the dismantlement and the installation of supporting mechanism 4 of being convenient for simultaneously.
As a further embodiment of this embodiment, as shown in fig. 2 and 4, the adjusting mechanism includes a supporting sleeve 406, the supporting sleeve 406 is disposed at the outer side of the outer ring 403 at equal intervals, a threaded rod 409 penetrates through the inner side of the supporting sleeve 406, a limiting groove 411 matched with a limiting block 410 fixed at the outer side of the threaded rod 409 is formed at the outer side of the supporting sleeve 406, so that the threaded rod 409 can only move radially but cannot rotate, a threaded ring 416 screwed with the threaded rod 409 is disposed at the top end of the supporting sleeve 406, and a fixture block 414 engaged with a clamping ring 415 fixed at the outer side of the supporting sleeve 406 is fixed at the bottom end of the threaded ring 416, so that the threaded ring 416 and the supporting sleeve 406 form a relatively complete whole;
when the position of the ball 407 needs to be adjusted, the threaded ring 416 is rotated, and due to the screwing of the threaded ring 416 and the threaded rod 409 and the limit guiding function of the limit block 410 and the limit groove 411, the threaded rod 409 can only move along the radial direction of the support sleeve 406, so that the position of the ball 407 is changed.
As a further embodiment of this embodiment, as shown in fig. 2 and 4, the buffering mechanism includes a fixed sleeve 417 with a sliding slot 420 formed on the surface thereof, the inner side of the fixed sleeve 417 is movably connected with a lifting rod 408, and a slider 419 matched with the sliding slot 420 is fixed on the outer side of the lifting rod 408, so that the extension length of the lifting rod 408 is limited to a certain extent by the matching of the slider 419 and the sliding slot 420, an elastic member 418 located inside the fixed sleeve 417 is placed between the bottom surface of the lifting rod 408 and the bottom wall of the fixed sleeve 417, the elastic member 418 can be a spring, and a ball 407 is mounted at the other end of the lifting rod 408;
when the device is when using, because the cooling water sprays and goes out through rotatory nozzle 5, thereby make cooling tube 3 can take place certain vibration, thereby make and take place certain friction between cooling tube 3 and the support frame 2, thereby lead to the surface wear of cooling tube 3, influence life, when cooling tube 3 vibrates, effect through elastic component 418 makes ball 407 and steel pipe inner wall steady contact, thereby certain buffering cushioning effect has been played, thereby the stability of cooling tube 3 has been guaranteed, simultaneously when ball 407's position control is inaccurate, ball 407 meets with the inner wall of steel pipe and locates, elastic component 418 receives the extrusion, thereby the effect through a plurality of elastic components 418, make the inner wall contact of ball 407 and steel pipe stable, thereby guaranteed that cooling tube 3 has a better supporting effect.
In conclusion, the supporting mechanism 4 is fixed through the fixing ring assembly, after the supporting mechanism 4 is fixed at a proper position, the ball 407 is positioned at a proper position through the adjusting mechanism, the buffering mechanism is informed to pass through, the cooling pipe 3 can be buffered and damped, the supporting mechanism 4 can have a good supporting effect on the cooling pipe 3, the cooling pipe 3 is prevented from being bent, cooling liquid sprayed by the rotary spray head 5 is enabled to be uneven, good cooling cannot be achieved, crystalline phase tissues are enabled to be unevenly distributed, the quality of the inner wall of the steel pipe is affected, through the effect of the supporting mechanism 4, the stability of the steel pipe and the steel pipe are guaranteed to have good support, and the cooling pipe 3 is prevented from being bent and even being enabled to scratch the inner wall of the steel pipe by the cooling pipe 3.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel pipe is characterized in that: the production line includes cooler bin (6), actuating mechanism (9) that are used for carrying out the support to the steel pipe are arranged to one side equidistance of cooler bin (6), the top swing joint of actuating mechanism (9) has two disc spare of connecting through the chain, and is located one side of the most distal actuating mechanism (9) in cooler bin (6) one side and is provided with altitude mixture control equipment (1), the top of altitude mixture control equipment (1) is fixed with and extends to cooler bin (6) inboard cooling tube (3), just rotatory nozzle (5) have been arranged to the outside equidistance of cooling tube (3), altitude mixture control equipment (1) and actuating mechanism (9) and two adjacent actuating mechanism (9) and between actuating mechanism (9) and cooler bin (6) equipartition have been put and are used for carrying out support frame (2) that support to cooling tube (3), the opposite side of cooler bin (6) has arranged in proper order first heating box (7) of laminating with cooler bin (6) and with the first heating box (7) of laminating in proper order Leave second heating cabinet (8) in great space between a heating cabinet (7), just be provided with actuating mechanism (9) between first heating cabinet (7) and second heating cabinet (8), a plurality of actuating mechanism (9) have been arranged to the opposite side equidistance of second heating cabinet (8).
2. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel tube according to claim 1, characterized in that: the outside cover of cooling tube (3) is equipped with detachable supporting mechanism (4), supporting mechanism (4) establish the fixed ring subassembly in the cooling tube (3) outside including the cover, the outside equidistance of fixed ring subassembly is provided with adjustment mechanism, length adjustment mechanism's the other end is connected with buffer gear, buffer gear's the other end is fixed with ball (407) that contact with the inner wall of steel pipe.
3. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel tube according to claim 2, characterized in that: the fixing ring assembly comprises an outer ring (403) and an inner ring (405), wherein one parting surface of the outer ring is connected with the cooling pipe (3) through a hinge and can be opened, the inner ring (405) is provided with a gap, the outer ring (403) is connected with the inner ring (405) through a connecting rod (404), lugs (402) are welded at two separable ends of the outer ring (403), a fastener (401) for enabling the outer ring (403) to form a complete whole is arranged between the lugs (402), and a fixing bolt (413) for fixing the supporting mechanism (4) is arranged on the inner side thread of the outer ring (403) in a penetrating mode.
4. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel tube according to claim 3, characterized in that: the bottom end of the fixed bolt (413) is movably connected with an anti-skid rubber pad (412) which is abutted with the cooling pipe (3).
5. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel tube according to claim 4, characterized in that: the adjusting mechanism comprises a supporting sleeve (406), the supporting sleeve (406) is arranged on the outer side of the outer ring (403) in an equal distance mode, a threaded rod (409) is arranged on the inner side of the supporting sleeve (406) in a penetrating mode, a limiting guide assembly is arranged between the supporting sleeve (406) and the threaded rod (409), and a threaded ring (416) screwed with the threaded rod (409) is movably connected to the top end of the supporting sleeve (406).
6. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel tube according to claim 5, characterized in that: the top end of the support sleeve (406) is provided with a threaded ring (416) screwed with the threaded rod (409), and the bottom end of the threaded ring (416) is fixed with a clamping block (414) clamped with a clamping ring (415) fixed on the outer side of the support sleeve (406).
7. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel tube according to claim 6, characterized in that: the limiting guide assembly comprises a limiting block (410) fixedly mounted on the outer side of the bottom end of the threaded rod (409), and a limiting groove (411) matched with the limiting block (410) is formed in the outer side of the supporting sleeve (406).
8. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel tube according to claim 7, characterized in that: the buffer mechanism comprises a fixed sleeve (417), the inner side of the fixed sleeve (417) is movably connected with a lifting rod (408), an elastic piece (418) located on the inner side of the fixed sleeve (417) is placed between the bottom surface of the lifting rod (408) and the bottom wall of the fixed sleeve (417), and a ball (407) is mounted at the other end of the lifting rod (408).
9. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel tube according to claim 8, characterized in that: the outer side of the fixed sleeve (417) is provided with a sliding groove (420), and the outer wall of the bottom end of the lifting rod (408) is fixed with a sliding block (419) which is matched with the sliding groove (420) and used for limiting the lifting rod (408).
10. The high-performance heat treatment production line of the large-caliber thin-wall seamless steel tube according to claim 9, characterized in that: the resilient member (418) may be a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111194054.2A CN113999963A (en) | 2021-10-13 | 2021-10-13 | High-performance heat treatment production line for large-caliber thin-wall seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111194054.2A CN113999963A (en) | 2021-10-13 | 2021-10-13 | High-performance heat treatment production line for large-caliber thin-wall seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113999963A true CN113999963A (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111194054.2A Pending CN113999963A (en) | 2021-10-13 | 2021-10-13 | High-performance heat treatment production line for large-caliber thin-wall seamless steel pipe |
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| CN103305678A (en) * | 2013-06-20 | 2013-09-18 | 鞍山泰源实业有限公司 | Steel pipe inner wall hardening and quenching device and steel pipe inner wall hardening and quenching method |
| US20170073787A1 (en) * | 2014-07-25 | 2017-03-16 | Ihi Corporation | Cooling device and multi-chamber heat treatment device |
| CN207442259U (en) * | 2017-11-04 | 2018-06-01 | 泉州永兴船舶架子工贸有限公司 | A kind of control cabinet for being used to control ship circuit system |
| CN108953345A (en) * | 2018-08-17 | 2018-12-07 | 厦门瑞尔特卫浴科技股份有限公司 | The adjustable connection bolt group of one kind |
| CN209098731U (en) * | 2018-11-21 | 2019-07-12 | 常州市一马机械有限公司 | A kind of circulating combination cooling device of high intensity clod wash seamless steel pipe |
| CN211758842U (en) * | 2020-02-25 | 2020-10-27 | 杨仟妹 | Shearing device is used in production of hot rolling seamless steel pipe |
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- 2021-10-13 CN CN202111194054.2A patent/CN113999963A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103305678A (en) * | 2013-06-20 | 2013-09-18 | 鞍山泰源实业有限公司 | Steel pipe inner wall hardening and quenching device and steel pipe inner wall hardening and quenching method |
| US20170073787A1 (en) * | 2014-07-25 | 2017-03-16 | Ihi Corporation | Cooling device and multi-chamber heat treatment device |
| CN207442259U (en) * | 2017-11-04 | 2018-06-01 | 泉州永兴船舶架子工贸有限公司 | A kind of control cabinet for being used to control ship circuit system |
| CN108953345A (en) * | 2018-08-17 | 2018-12-07 | 厦门瑞尔特卫浴科技股份有限公司 | The adjustable connection bolt group of one kind |
| CN209098731U (en) * | 2018-11-21 | 2019-07-12 | 常州市一马机械有限公司 | A kind of circulating combination cooling device of high intensity clod wash seamless steel pipe |
| CN211758842U (en) * | 2020-02-25 | 2020-10-27 | 杨仟妹 | Shearing device is used in production of hot rolling seamless steel pipe |
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