CN112589454A - Low-temperature-resistant stress corrosion-resistant thick-wall steel pipe and processing equipment thereof - Google Patents
Low-temperature-resistant stress corrosion-resistant thick-wall steel pipe and processing equipment thereof Download PDFInfo
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- CN112589454A CN112589454A CN202011368880.XA CN202011368880A CN112589454A CN 112589454 A CN112589454 A CN 112589454A CN 202011368880 A CN202011368880 A CN 202011368880A CN 112589454 A CN112589454 A CN 112589454A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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Abstract
The invention discloses a low-temperature-resistant stress corrosion-resistant thick-wall steel pipe and processing equipment thereof, which comprise a pipe body, wherein the pipe body comprises an outer pipe, an inner pipe, a steel core layer, a connecting core and a hoop strip, and further comprises a base, a quenching pipe forming mechanism, a cutting mechanism and a transmission mechanism.
Description
Technical Field
The invention relates to the field of seamless steel pipes and processing equipment thereof, in particular to a low-temperature-resistant stress corrosion-resistant thick-wall steel pipe and processing equipment thereof.
Background
In practical application, the seamless steel tube may bear low temperature and relatively large stress, if the steel tube has no reinforcing structure, the steel tube may deform or even crack under the action of expansion and contraction and external stress concentration, which affects the normal use performance of the steel tube and reduces the service life of the steel tube.
In the production process of the seamless steel pipe, the essential step is grinding and polishing, which is the key for converting a rough steel pipe obtained by smelting and quenching into a finished product of a refined steel pipe, and the distance between the existing grinding tools for grinding and polishing is usually fixed, so that the grinding tools need to be replaced when being applied to the processing of steel pipes with different apertures and sizes, and are troublesome.
Disclosure of Invention
The invention aims to provide a low-temperature-resistant stress corrosion-resistant thick-walled steel pipe and processing equipment thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high accuracy thick wall seamless steel pipe, contains the body, the body includes outer tube, inner tube, steel core layer, hookup core and strake, the outer tube is installed in the outside of inner tube, and the inside of inner tube has seted up cylindric cavity, outer tube and interior intersubular fixed mounting have the steel core layer, equidistance ground fixed mounting has the hookup core in the steel core layer, the one end and the inner tube outside fixed connection of hookup core, and the other end and the inboard fixed connection of outer tube of hookup core, the center department fixed mounting of steel core layer has the strake, and the both ends of strake respectively with adjacent hookup core fixed connection.
Preferably, the coupling core is disposed in a scattering manner in a triangular shape outward with the center of the pipe body as a circle.
Preferably, the connection part of the hoop strip and the connecting core is fixedly provided with an arc-shaped connecting block.
The utility model provides a processing equipment of low temperature resistant stress corrosion resistance thick wall steel pipe, includes the base, quenches into tub mechanism, cutting mechanism and transport mechanism, upper surface one side fixed mounting of base has the quenching to become tub mechanism, and the upper surface of base keeps away from one side fixed mounting who quenches into tub mechanism and has cutting mechanism, one side that the base is close to cutting mechanism installs transport mechanism, fixed mounting has the grinding machanism who has the slip adjustment structure in the base.
Preferably, grinding machanism includes fixed plate, adjusting part, damper, first emery wheel, fixing base, card and holds board and second emery wheel, fixed mounting has the fixed plate in the base, and the last fixed surface of fixed plate installs adjusting part, damper is installed symmetrically in adjusting part's both sides, adjusting part keeps away from one side of fixed plate and installs first emery wheel, and first emery wheel and body outer wall extrusion contact, one side fixed mounting that the base upper surface is close to the fixed plate has the fixing base, and has pegged graft the body in the fixing base, one side fixed mounting that the base was kept away from to the fixing base is held the board symmetrically, and holds and rotate in the board and be connected with the second emery wheel, second emery wheel and body outer wall extrusion contact.
Preferably, the adjusting part includes motor, slide rail, baffle, lead screw, movable block and fixed block, fixed surface one side fixed mounting has the motor on the fixed plate, and the fixed plate upper surface keeps away from one side fixed mounting of motor has the slide rail, the one end fixed mounting that the slide rail is close to the motor has the baffle, fixed mounting has the lead screw on the output of motor, and the lead screw alternates through the baffle, the one end cooperation that the motor was kept away from to the lead screw has the movable block, and movable block and slide rail sliding connection, one side fixed mounting that the baffle was kept away from to the slide rail has the fixed block, the upper surface of fixed block and movable block all rotates and installs first emery wheel.
Preferably, the damping assembly comprises a sleeve, a sliding column, a connecting frame and a spring, the sleeve is symmetrically and fixedly mounted on the upper surface of the fixing plate, the sliding column is inserted into the sleeve in a sliding mode, the connecting frame is symmetrically and fixedly mounted at the joint of the fixing plate and the sliding rail, one side, far away from the fixing plate, of the connecting frame is fixedly connected with one end of the sliding column, and the spring is mounted between the connecting frame and the sleeve.
Preferably, one side of the first grinding wheel, which is far away from the movable block and the fixed block, is provided with a limiting pipe sleeve.
Compared with the prior art, the invention has the beneficial effects that:
the connecting core is additionally arranged in the pipe body, the stable support is formed between the inner pipe and the outer pipe of the pipe body by utilizing the characteristic of stable triangular structure, the stress bearing range of the pipe body is enlarged, in addition, the steel core layer of the whole pipe body is divided into three parts by the connecting core, the deformation resistance of the pipe body under the low-temperature environment can be improved by mutual extrusion between the three parts, in the processing equipment of the pipe body, the distance between the grinding ends can be adjusted in real time by utilizing the screw rod structure, the purpose of adapting to grinding of the pipe bodies with different outer diameters is achieved, and the trouble of repeatedly replacing the grinding ends is avoided.
Drawings
FIG. 1 is a schematic cross-sectional view of a tubular body according to the present invention;
FIG. 2 is a schematic view of a first overall structure of the pipe machining apparatus according to the present invention;
FIG. 3 is a schematic view of a second overall structure of the pipe machining apparatus according to the present invention;
FIG. 4 is a schematic view of a grinding mechanism according to the present invention;
fig. 5 is a schematic structural diagram of the adjusting assembly of the present invention.
In the figure: 1. a pipe body; 11. an outer tube; 12. an inner tube; 13. a steel core layer; 14. a coupling core; 15. a hoop strip; 2. a base; 3. quenching the pipe forming mechanism; 4. a polishing mechanism; 41. a fixing plate; 42. an adjustment assembly; 421. a motor; 422. a slide rail; 423. a baffle plate; 424. a screw rod; 425. a movable block; 426. a fixed block; 43. a shock absorbing assembly; 431. a sleeve; 432. a traveler; 433. a connecting frame; 434. a spring; 44. a first grinding wheel; 45. a fixed seat; 46. a clamping plate; 47. a second grinding wheel; 5. a cutting mechanism; 6. and a transmission mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a low-temperature-resistant, stress-corrosion-resistant thick-walled steel pipe shown in the figure includes a pipe body 1, where the pipe body 1 includes an outer pipe 11, an inner pipe 12, a steel core layer 13, a coupling core 14 and a hoop strip 15, the outer pipe 11 is installed outside the inner pipe 12, a cylindrical cavity is opened inside the inner pipe 12, a steel core layer 13 is fixedly installed between the outer pipe 11 and the inner pipe 12, the coupling cores 14 are fixedly installed in the steel core layer 13 at equal intervals, one end of the coupling core 14 is fixedly connected to the outside of the inner pipe 12, the other end of the coupling core 14 is fixedly connected to the inside of the outer pipe 11, the hoop strip 15 is fixedly installed at the center of the steel core layer 13, and two ends of the hoop strip 15 are respectively fixedly connected to the adjacent coupling.
Referring to fig. 1, the coupling core 14 is disposed in a scattering manner in a triangular shape outward with the center of the pipe body 1 being a circle, and forms a stable support between the inner pipe 12 and the outer pipe 11 of the pipe body 1 by using the characteristic of a stable triangular structure, so as to increase the stress bearing range of the pipe body 1, and the coupling core 14 divides the steel core layer 13 of the entire pipe body 1 into three parts, so that the deformation resistance of the pipe body 1 in a low temperature environment can be improved by mutual extrusion therebetween.
Referring to fig. 1, the connecting portion between the hoop 15 and the connecting core 14 is fixedly provided with an arc-shaped connecting block, and the connecting block is arranged in an arc shape, so that not only can the connection fastening performance between the hoop 15 and the connecting core 14 be improved, but also the internal hard corners can be eliminated, and the deformation resistance of the pipe body 1 can be improved.
Referring to fig. 2 and 3, in the drawings, a processing apparatus for a low temperature resistant and stress corrosion resistant thick-walled steel pipe comprises a base 2, a quenching pipe forming mechanism 3, a cutting mechanism 5 and a transmission mechanism 6, wherein the quenching pipe forming mechanism 3 is fixedly installed on one side of the upper surface of the base 2, the cutting mechanism 5 is fixedly installed on one side of the upper surface of the base 2, which is far away from the quenching pipe forming mechanism 3, the transmission mechanism 6 is installed on one side of the base 2, which is close to the cutting mechanism 5, and a polishing mechanism 4 with a sliding adjustment structure is fixedly installed in the base 2, in the processing process of the steel pipe, a steel material is firstly made into a steel pipe blank through the quenching pipe forming mechanism 3, then the steel pipe blank is polished by the polishing mechanism 4 to obtain a refined steel pipe, then the refined steel pipe is separated by the cutting mechanism 5 according to a specific required length, and the obtained steel pipe finished product enters the, and (4) conveying the materials out through the conveying mechanism 6 for subsequent inspection.
Referring to fig. 4, the polishing mechanism 4 includes a fixing plate 41, an adjusting assembly 42, a damping assembly 43, a first grinding wheel 44, a fixing seat 45, a clamping plate 46 and a second grinding wheel 47, the fixing plate 41 is fixedly installed in the base 2, the adjusting assembly 42 is fixedly installed on the upper surface of the fixing plate 41, the damping assemblies 43 are symmetrically installed on two sides of the adjusting assembly 42, the first grinding wheel 44 is installed on one side of the adjusting assembly 42 away from the fixing plate 41, the first grinding wheel 44 is in pressing contact with the outer wall of the pipe body 1, the fixing seat 45 is fixedly installed on one side of the upper surface of the base 2 close to the fixing plate 41, the pipe body 1 is inserted into the fixing seat 45, the clamping plate 46 is symmetrically and fixedly installed on one side of the fixing seat 45 away from the base 2, the second grinding wheel 47 is rotatably connected in the clamping plate 46, the second grinding wheel 47 is in pressing contact with the, at first with the inside and outside footpath size of the steel pipe that needs to polish as the reference, adjust the interval of first emery wheel 44 through adjusting part 42 with the adaptation, then carry out preliminary burnishing and polishing to body 1 through second emery wheel 47, eliminate the burr, the rethread first emery wheel 44 carries out more comprehensive, cladding formula burnishing and polishing to body 1, makes the steel pipe finished product.
Referring to fig. 5, the adjusting assembly 42 includes a motor 421, a sliding rail 422, a baffle 423, a screw rod 424, a movable block 425 and a fixed block 426, one side of the upper surface of the fixed plate 41 is fixedly provided with the motor 421, one side of the upper surface of the fixed plate 41, which is away from the motor 421, is fixedly provided with the sliding rail 422, one end of the sliding rail 422, which is close to the motor 421, is fixedly provided with the baffle 423, an output end of the motor 421 is fixedly provided with the screw rod 424, the screw rod 424 penetrates through the baffle 423, one end of the screw rod 424, which is away from the motor 421, is matched with the movable block 425, the movable block 425 is slidably connected with the sliding rail 422, one side of the sliding rail 422, which is away from the baffle 423, is fixedly provided with the fixed block 426, the upper surfaces of the fixed block 426 and the movable block 425 are rotatably provided with a first grinding, the distance between the grinding wheel and the fixed block 426 is adjusted, namely the distance between the grinding wheel and the first grinding wheel 44 is adjusted, so that the purpose of grinding pipe bodies 1 with different outer diameters is achieved.
Referring to fig. 4, the damping assembly 43 includes a sleeve 431, a sliding column 432, a connecting frame 433, and a spring 434, the sleeve 431 is symmetrically and fixedly mounted on the upper surface of the fixing plate 41, the sliding column 432 is slidably inserted into the sleeve 431, the connecting frame 433 is symmetrically and fixedly mounted at the connection position of the fixing plate 41 and the sliding rail 422, one side of the connecting frame 433 away from the fixing plate 41 is fixedly connected with one end of the sliding column 432, and the spring 434 is mounted between the connecting frame 433 and the sleeve 431, in the damping assembly 43, the vibration during the polishing process can be effectively reduced through the sliding of the sliding column 432 and the sleeve 431 and the action of the spring 434, the deviation of the movable block 425 in the adjusting assembly 42 from the sliding rail 422 is reduced, and the adverse effect on the adjusting action is prevented.
Referring to fig. 4, a limit pipe sleeve is installed on a side of the first grinding wheel 44 away from the movable block 425 and the fixed block 426, so that the rotation of the first grinding wheel 44 is kept stable.
In this scheme, the theory of use of a low temperature resistant anti stress corrosion thick wall steel pipe and processing equipment is as follows: in the process of processing the steel pipe, a steel raw material is firstly made into a steel pipe blank through a quenching pipe forming mechanism 3, then the steel pipe blank is ground and polished through a grinding mechanism 4 to obtain a refined steel pipe, then the refined steel pipe is separated through a cutting mechanism 5 according to the specific required length, the obtained steel pipe finished product enters a transmission mechanism 6 and is conveyed out through the transmission mechanism 6 for subsequent inspection, in the grinding mechanism 4, firstly, the inner diameter and the outer diameter of the steel pipe to be ground are taken as reference, the distance between first grinding wheels 44 is adjusted through an adjusting assembly 42 to adapt, then, the pipe body 1 is primarily ground and polished through second grinding wheels 47 to eliminate burrs, then, the pipe body 1 is ground and polished more comprehensively and in a cladding mode through the first grinding wheels 44 to obtain a steel pipe finished product, in the adjusting assembly 42, a screw rod 424 is rotated through a control motor 421, therefore, the movable block 425 slides relative to the sliding rail 422, the distance between the movable block 425 and the fixed block 426 is adjusted, namely the distance between the movable block and the first grinding wheel 44 is adjusted, the purpose of grinding pipe bodies 1 with different outer diameters is achieved, in the shock absorption assembly 43, vibration in the grinding process can be effectively reduced through the sliding of the sliding column 432 and the sleeve 431 and the action of the spring 434, the deviation of the movable block 425 in the adjusting assembly 42 from the sliding rail 422 is reduced, and adverse effects on the adjusting action are prevented.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a low temperature resistant stress corrosion resistance thick wall steel pipe, contains body (1), body (1) includes outer tube (11), inner tube (12), steel core layer (13), hookup core (14) and hoop (15), the outside at inner tube (12) is installed in outer tube (11), and the inside of inner tube has seted up cylindric cavity, fixed mounting has steel sandwich layer (13) between outer tube (11) and inner tube (12), equidistance ground fixed mounting has hookup core (14) in steel sandwich layer (13), the one end and the inner tube (12) outside fixed connection of hookup core (14), and the other end and the outer tube (11) inboard fixed connection of hookup core (14), its characterized in that: and the center of the steel core layer (13) is fixedly provided with a hoop strip (15), and two ends of the hoop strip (15) are respectively and fixedly connected with the adjacent connecting cores (14).
2. A high precision thick wall seamless steel pipe according to claim 1, characterized in that: the connecting core (14) is arranged in a scattering manner in a triangular shape towards the outer side by taking the center of the pipe body (1) as a circle.
3. A high precision thick wall seamless steel pipe according to claim 1, characterized in that: and an arc-shaped connecting block is fixedly arranged at the connecting part of the hoop strip (15) and the connecting core (14).
4. The processing equipment of the thick-walled steel pipe with low temperature resistance and stress corrosion resistance as claimed in any one of claims 1, 2 and 3, comprising a base (2), a quenching pipe forming mechanism (3), a cutting mechanism (5) and a transmission mechanism (6), wherein the quenching pipe forming mechanism (3) is fixedly installed on one side of the upper surface of the base (2), the cutting mechanism (5) is fixedly installed on one side of the upper surface of the base (2) far away from the quenching pipe forming mechanism (3), the transmission mechanism (6) is installed on one side of the base (2) close to the cutting mechanism (5), and the processing equipment is characterized in that: a polishing mechanism (4) with a sliding adjusting structure is fixedly arranged in the base (2).
5. The automatic processing equipment of high-precision thick-wall seamless steel pipes according to claim 4, characterized in that: the grinding mechanism (4) comprises a fixing plate (41), an adjusting component (42), a damping component (43), a first grinding wheel (44), a fixing seat (45), a clamping plate (46) and a second grinding wheel (47), wherein the fixing plate (41) is fixedly installed in the base (2), the adjusting component (42) is fixedly installed on the upper surface of the fixing plate (41), the damping component (43) is symmetrically installed on two sides of the adjusting component (42), the first grinding wheel (44) is installed on one side, away from the fixing plate (41), of the adjusting component (42), the first grinding wheel (44) is in extrusion contact with the outer wall of the pipe body (1), the fixing seat (45) is fixedly installed on one side, close to the fixing plate (41), of the upper surface of the base (2), the pipe body (1) is inserted in the fixing seat (45), and the clamping plate (46) is symmetrically and fixedly installed on one side, away from the base (2, and a second grinding wheel (47) is rotatably connected in the clamping plate (46), and the second grinding wheel (47) is in extrusion contact with the outer wall of the pipe body (1).
6. The automatic processing equipment of high-precision thick-wall seamless steel pipes according to claim 5, characterized in that: the adjusting component (42) comprises a motor (421), a slide rail (422), a baffle (423), a screw rod (424), a movable block (425) and a fixed block (426), the motor (421) is fixedly arranged on one side of the upper surface of the fixed plate (41), and one side of the upper surface of the fixed plate (41) far away from the motor (421) is fixedly provided with a slide rail (422), a baffle plate (423) is fixedly arranged at one end of the sliding rail (422) close to the motor (421), a screw rod (424) is fixedly arranged at the output end of the motor (421), and the screw rod (424) penetrates through the baffle (423), one end of the screw rod (424) far away from the motor (421) is matched with a movable block (425), the movable block (425) is connected with the slide rail (422) in a sliding way, a fixed block (426) is fixedly arranged on one side of the slide rail (422) far away from the baffle (423), and the upper surfaces of the fixed block (426) and the movable block (425) are rotatably provided with a first grinding wheel (44).
7. The automatic processing equipment of high-precision thick-wall seamless steel pipes according to claim 5, characterized in that: damping component (43) include sleeve pipe (431), traveller (432), link (433) and spring (434), fixed surface fixed mounting of fixed plate (41) has sleeve pipe (431) symmetrically, it has traveller (432) to slide in sleeve pipe (431) to peg graft, fixed plate (41) and slide rail (422) junction fixed mounting has link (433) symmetrically, and link (433) keep away from one side of fixed plate (41) and the one end fixed connection of traveller (432), install spring (434) between link (433) and sleeve pipe (431).
8. The automatic processing equipment of high-precision thick-wall seamless steel pipes according to claim 6, characterized in that: and a limiting pipe sleeve is arranged on one side, away from the movable block (425) and the fixed block (426), of the first grinding wheel (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011368880.XA CN112589454A (en) | 2020-11-30 | 2020-11-30 | Low-temperature-resistant stress corrosion-resistant thick-wall steel pipe and processing equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011368880.XA CN112589454A (en) | 2020-11-30 | 2020-11-30 | Low-temperature-resistant stress corrosion-resistant thick-wall steel pipe and processing equipment thereof |
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| CN112589454A true CN112589454A (en) | 2021-04-02 |
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| CN202011368880.XA Pending CN112589454A (en) | 2020-11-30 | 2020-11-30 | Low-temperature-resistant stress corrosion-resistant thick-wall steel pipe and processing equipment thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117226527A (en) * | 2023-11-10 | 2023-12-15 | 中国电建集团山东电力建设第一工程有限公司 | Metal member trimming and leveling device for municipal engineering |
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| EP0105626A2 (en) * | 1982-09-03 | 1984-04-18 | Litton Industrial Products, Inc. | A truing and dressing device, and a dressing bar assembly, for a cylindrical grinding machine |
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| CN117226527A (en) * | 2023-11-10 | 2023-12-15 | 中国电建集团山东电力建设第一工程有限公司 | Metal member trimming and leveling device for municipal engineering |
| CN117226527B (en) * | 2023-11-10 | 2024-03-19 | 中国电建集团山东电力建设第一工程有限公司 | Metal member trimming and leveling device for municipal engineering |
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Application publication date: 20210402 |