Feeding slewing mechanism of cold pilger mill

Abstract

The invention belongs to the technical field of cold pilger mills, and discloses a feeding swing mechanism of a cold pilger mill, which comprises a fixing sleeve, a plurality of sliding rods are slidably connected to the outer wall of the circumference of the fixing sleeve, the end parts of the sliding rods penetrate through the fixing sleeve and extend into the fixing sleeve, and limiting sleeves are fixedly connected to the outer walls of the circumferences of the sliding rods. The outer wall of the circumference of each sliding rod is sleeved with a spring, the inner end of each sliding rod is fixedly connected with a hinged support, the inner wall of each hinged support is rotationally connected with a rotating shaft, the outer wall of the circumference of each rotating shaft is fixedly connected with a positioning wheel, the end of each hinged support is fixedly connected with a guide block, and a plurality of driving assemblies are installed on the outer wall of the fixing sleeve. When the connecting plate moves, the multiple extrusion blocks are driven to move, the multiple guide blocks are extruded through the extrusion blocks, the hinged supports are pushed to move when the guide blocks move, the hinged supports push the positioning wheels to clamp the outer walls of pipelines of different sizes, the multiple positioning wheels are distributed at different positions of the outer walls of the pipelines, and the stability of clamping the pipelines can be improved.

Description

Technical Field

[0001] The invention relates to the field of cold rolling mill, and more particularly to a feeding and rotating mechanism of the cold rolling mill. Background Art

[0002] Oil casing, also known as petroleum casing, is a steel pipe used to support the wall of oil and gas wells to ensure the normal operation of the entire oil well during the drilling process and after completion. When producing oil casing, a cold rolling mill is used to change the size or shape of the pipe. The cold rolling mill is a periodically working mechanism. Its main feature is that during the rolling process, the working frame together with the upper and lower rollers are driven by a crank connecting rod mechanism to allow the tube billet to move forward in a rolling manner, and the elastic deformation of the metal is used to achieve the rolling of the steel pipe, so that the tube billet produces rolling deformation on the wall reduction and sizing of the mandrel. Due to the reciprocating motion of the frame, the tube billet is continuously fed and rotated under the action of the feeding and rotating mechanism, and finally forms a finished steel pipe of the required specifications.

[0003] When the feeding and rotating mechanism in the existing technology is used, it is usually necessary to clamp the pipe through a claw seat. However, the existing claw seat can usually only clamp the straight end of the pipe, which makes the overall balance of the pipe poor. As a result, the stability of the pipe is poor when it rotates, which affects the subsequent processing of the pipe. In view of this, we propose a feeding and rotating mechanism for a cold rolling pipe mill. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a feeding and rotating mechanism of a cold rolling mill, which can improve the stability of pipe clamping through a plurality of positioning wheels distributed on the outer wall of the pipe.

[0005] In order to solve the above technical problems, the present invention provides a feeding and rotating mechanism of a cold rolling tube machine, including a fixed sleeve, a plurality of sliding rods are slidably connected to the circumferential outer wall of the fixed sleeve, the ends of the sliding rods pass through the fixed sleeve and extend into the interior thereof, the circumferential outer walls of the sliding rods are fixedly connected to the limiting sleeves, the circumferential outer walls of the sliding rods are sleeved with springs, the inner ends of the sliding rods are fixedly connected to hinge seats, the inner walls of the hinge seats are rotatably connected to rotating shafts, the circumferential outer walls of the rotating shafts are fixedly connected to positioning wheels, the ends of the hinge seats are fixedly connected to guide blocks, and the outer wall of the fixed sleeve is installed with a plurality of driving components, and the driving components are used to squeeze the guide blocks.

[0006] Furthermore, one end of the spring is fixedly connected to the limiting sleeve, and the other end of the spring is fixedly connected to the outer wall of the fixing sleeve.

[0007] Furthermore, the drive assembly includes multiple mounting plates, the ends of the mounting plates are fixedly connected to the fixing sleeves, the inner walls of the mounting plates are fixedly connected to hydraulic rods, the output ends of the hydraulic rods are fixedly connected to second slides, and the ends of the second slides are fixedly connected to connecting plates.

[0008] Furthermore, a second sliding hole is provided on the outer wall of the connecting plate, and a plurality of extrusion blocks are fixedly connected to the outer wall of the connecting plate. A reserved groove is provided on the outer wall of the extrusion block, and the reserved groove is suitable for sliding into the slide rod when the connecting plate moves, and the extrusion block squeezes the guide block when it moves.

[0009] Furthermore, the outer wall of the fixing sleeve is provided with a plurality of first sliding holes, the end of the fixing sleeve is provided with a plurality of second sliding grooves, the first sliding plate is slidably connected to the inner wall of the first sliding hole, and the second sliding plate is slidably connected to the inner wall of the second sliding groove.

[0010] Furthermore, it also includes a mounting seat, the top of which is fixedly connected to two supporting seats, the top of each supporting seat is fixedly connected to a slide rail, the top of each slide rail is provided with a first slide groove, the inner wall of the first slide groove is slidably connected to two sliding blocks, and the top of each sliding block is fixedly connected to a support plate.

[0011] Furthermore, two rotating sleeves are provided between the two slide rails, the rotating sleeves are rotatably connected to the support plates respectively, the inner wall of the rotating sleeve is fixedly connected to the outer wall of the fixed sleeve, and the circumferential outer wall of the rotating sleeve is fixedly connected with a gear ring.

[0012] Furthermore, a first motor is fixedly connected to the top of one of the support plates, and a first support block is fixedly connected to the top of two of the support plates. A drive shaft is rotatably connected between the two first support blocks, and an end of the drive shaft is fixedly connected to the first motor. Two first gears are fixedly connected to the circumferential outer wall of the drive shaft, and the first gears are meshed with a ring gear.

[0013] Furthermore, a second motor is fixedly connected to the top of the mounting seat, two second support plates are fixedly connected to the top of the mounting seat, an output shaft is rotatably connected between the two second support plates, an end of the output shaft is fixedly connected to the second motor, and a first bevel gear is fixedly connected to the circumferential outer wall of the output shaft.

[0014] Furthermore, a toothed plate is fixedly connected to the outer wall of the fixed sleeve, a plurality of connecting shafts are rotatably connected between the two support seats, the circumferential outer walls of the connecting shafts are fixedly connected to second gears, the toothed plate is meshed with the second gears, the circumferential outer wall of the connecting shafts is fixedly connected to a second bevel gear, the second bevel gear is meshed with the first bevel gear, a plurality of sleeves are rotatably connected to the circumferential outer wall of the output shaft, and the sleeves are rotatably connected to the connecting shafts.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the connecting plate moves, it drives multiple extrusion blocks to move, and the extrusion blocks squeeze multiple guide blocks respectively. When the guide blocks move, they push the hinge seat to move. The hinge seat pushes the positioning wheels to clamp the outer walls of pipes of different sizes. Multiple positioning wheels are distributed at different positions on the outer wall of the pipe, which can improve the stability of pipe clamping.

[0017] 2. The positioning wheel can flexibly adapt to pipes of different sizes through the push of the hinge seat and the extrusion block, which improves the versatility and flexibility of the equipment.

[0018] 3. The first motor drives the drive shaft, the first gear, the gear ring and the rotating sleeve to rotate, and finally drives the fixed sleeve and the pipeline to rotate. This gear transmission method has the characteristics of high transmission efficiency and good stability, and can ensure the accuracy and stability of the pipeline during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the installation structure of the rotating sleeve of the present invention;

[0022] Figure 3 It is a schematic diagram of the installation structure of the connecting shaft of the present invention;

[0023] Figure 4 This is a schematic diagram of the installation structure of the positioning wheel of the present invention;

[0024] Figure 5 It is a schematic diagram of the installation structure of the hydraulic rod of the present invention;

[0025] Figure 6 It is a schematic diagram of the installation structure of the connecting plate of the present invention.

[0026] Explanation of the numbers in the figure: 1. mounting seat; 2. supporting seat; 3. slide rail; 4. first slide groove; 5. slider; 6. supporting plate; 7. rotating sleeve; 8. gear ring; 9. first motor; 10. first support block; 11. driving shaft; 12. first gear; 13. second motor; 14. second support plate; 15. output shaft; 16. shaft sleeve; 17. first bevel gear; 18. connecting shaft; 19. second bevel gear; 20. second gear; 21. tooth plate; 22. fixing sleeve; 23. first slide hole; 24. second slide groove; 25. mounting plate; 26. hydraulic rod; 27. connecting plate; 28. first slide plate; 29. ​​second slide plate; 30. second slide hole; 31. slide rod; 32. limiting sleeve; 33. hinge seat; 34. rotating shaft; 35. positioning wheel; 36. guide block; 37. extrusion block; 38. reserved groove; 39. spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0030] like Figure 1 , Figure 4-Figure 6As shown, a feeding and rotating mechanism of a cold rolling tube mill comprises a mounting seat 1 and a fixed sleeve 22, a plurality of slide bars 31 are slidably connected to the circumferential outer wall of the fixed sleeve 22, the ends of the slide bars 31 penetrate the fixed sleeve 22 and extend to the inside thereof, the circumferential outer walls of the slide bars 31 are fixedly connected to the limiting sleeve 32, the circumferential outer walls of the slide bars 31 are sleeved with springs 39, the inner ends of the slide bars 31 are fixedly connected to hinge seats 33, the inner walls of the hinge seats 33 are rotatably connected to rotating shafts 34, the circumferential outer walls of the rotating shafts 34 are fixedly connected to positioning wheels 35, the ends of the hinge seats 33 are fixedly connected to guide blocks 36, a plurality of driving components are installed on the outer wall of the fixed sleeve 22, the driving components are used to squeeze the guide blocks 36, one end of the spring 39 is fixedly connected to the limiting sleeve 32, and the other end of the spring 39 is fixedly connected to the outer wall of the fixed sleeve 22.

[0031] like Figure 4-Figure 6 As shown, the driving assembly includes a plurality of mounting plates 25, the ends of the mounting plates 25 are fixedly connected to the fixing sleeves 22, the inner walls of the mounting plates 25 are fixedly connected to hydraulic rods 26, the output ends of the hydraulic rods 26 are fixedly connected to second slide plates 29, and the ends of the second slide plates 29 are fixedly connected to connecting plates 27;

[0032] A second sliding hole 30 is formed on the outer wall of the connecting plate 27, and a plurality of extrusion blocks 37 are fixedly connected to the outer wall of the connecting plate 27. A reserved groove 38 is formed on the outer wall of the extrusion block 37. The reserved groove 38 is suitable for sliding into the slide rod 31 when the connecting plate 21 moves, and the extrusion block 37 extrudes the guide block 36 when it moves.

[0033] The outer wall of the fixing sleeve 22 is provided with a plurality of first sliding holes 23 , the end of the fixing sleeve 22 is provided with a plurality of second sliding grooves 24 , the first slide plate 28 is slidably connected to the inner wall of the first sliding hole 23 , and the second slide plate 29 is slidably connected to the inner wall of the second sliding groove 24 .

[0034] When the connecting plate 27 moves, it drives multiple extrusion blocks 37 to move, and the extrusion blocks 37 squeeze the multiple guide blocks 36 respectively. When the guide blocks 36 move, they push the hinge seat 33 to move, and the hinge seat 33 pushes the positioning wheels 35 to clamp the outer walls of pipes of different sizes. The multiple positioning wheels 35 are distributed at different positions on the outer wall of the pipe, which can improve the stability of pipe clamping; the second slide plate 29 and the connecting plate 27 are pushed by the hydraulic rod 26, and then the extrusion blocks 37 are driven to squeeze the guide blocks 36, so that the positioning wheels 35 can fit closely to the outer walls of pipes of different sizes, thereby achieving stable clamping of the pipes; the setting of the spring 39 ensures that the slide bar 31 and the positioning wheel 35 can have a certain buffering and adaptive ability when subjected to external force, further improving the adaptability to pipes of different sizes.

[0035] like Figure 1 and Figure 2As shown, two supporting seats 2 are fixedly connected to the top of the mounting seat 1, and slide rails 3 are fixedly connected to the top of the supporting seats 2. A first slide groove 4 is opened on the top of the slide rail 3, and two sliders 5 are slidably connected to the inner wall of the first slide groove 4, and a support plate 6 is fixedly connected to the top of the slider 5.

[0036] like Figure 2 As shown, two rotating sleeves 7 are provided between the two slide rails 3, and the rotating sleeves 7 are rotatably connected to the support plates 6 respectively, the inner wall of the rotating sleeve 7 is fixedly connected to the outer wall of the fixed sleeve 22, and the circumferential outer wall of the rotating sleeve 7 is fixedly connected with a gear ring 8, one of the support plates 6 is fixedly connected to the top with a first motor 9, wherein the tops of the two support plates 6 are fixedly connected with a first support block 10, a driving shaft 11 is rotatably connected between the two first support blocks 10, the end of the driving shaft 11 is fixedly connected to the first motor 9, and the circumferential outer wall of the driving shaft 11 is fixedly connected with two first gears 12, and the first gear 12 is meshed with the gear ring 8; the first motor 9 drives the driving shaft 11, the first gear 12, the gear ring 8 and the rotating sleeve 7 to rotate, and finally drives the fixed sleeve 22 and the pipeline to rotate, which can ensure the stability of the pipeline during rotation.

[0037] like Figure 1 and Figure 3 As shown, a second motor 13 is fixedly connected to the top of the mounting base 1, two second support plates 14 are fixedly connected to the top of the mounting base 1, an output shaft 15 is rotatably connected between the two second support plates 14, an end of the output shaft 15 is fixedly connected to the second motor 13, and a first bevel gear 17 is fixedly connected to the outer circumferential wall of the output shaft 15;

[0038] The second motor 13 drives the second bevel gear 19 and the second gear 20 to rotate through the output shaft 15 and the first bevel gear 17, and then drives the fixed sleeve 22 and the pipeline to move forward and backward through the toothed plate 21;

[0039] A toothed plate 21 is fixedly connected to the outer wall of the fixed sleeve 22, and a plurality of connecting shafts 18 are rotatably connected between the two support seats 2. The circumferential outer walls of the connecting shafts 18 are fixedly connected to the second gears 20, and the toothed plate 21 meshes with the second gears 20. A second bevel gear 19 is fixedly connected to the circumferential outer wall of the connecting shaft 18, and the second bevel gear 19 meshes with the first bevel gear 17. A plurality of sleeves 16 are rotatably connected to the circumferential outer wall of the output shaft 15, and the sleeves 16 are rotatably connected to the connecting shafts 18.

[0040] When in use, the pipeline is placed in the fixing sleeve 22, and the plurality of hydraulic rods 26 respectively drive the second slide plate 29 to slide along the inner wall of the first slide groove 4 on the fixing sleeve 22, and the second slide plate 29 drives the connecting plate 27 to move, and the connecting plate 27 drives the first slide plate 28 to slide along the inner wall of the first slide hole 23;

[0041] When the connecting plate 27 moves, the multiple extrusion blocks 37 are driven to move, and the extrusion blocks 37 are used to squeeze the multiple guide blocks 36 respectively. When the guide blocks 36 move, the hinge seat 33 is pushed to move, and the hinge seat 33 pushes the positioning wheels 35 to clamp the outer walls of pipes of different sizes. The multiple positioning wheels 35 are distributed at different positions on the outer wall of the pipe, which can improve the stability of pipe clamping. At this time, the sliding rod 31 slides along the inner wall of the fixing sleeve 22, so that the spring 39 is stretched;

[0042] The first motor 9 drives the driving shaft 11 to rotate, the driving shaft 11 drives the first gear 12 to rotate, the first gear 12 drives the ring gear 8 to rotate, the ring gear 8 drives the rotating sleeve 7 to rotate, and the rotating sleeve 7 drives the fixed sleeve 22 to rotate, so that the pipeline can rotate;

[0043] The output shaft 15 is driven to rotate by the second motor 13, the first bevel gear 17 is driven to rotate by the output shaft 15, the second bevel gear 19 is driven to rotate by the first bevel gear 17, the second bevel gear 19 drives the plurality of second gears 20 to rotate, the gear plate 21 is driven to move by the second gear 20, and then the fixed sleeve 22 is driven to move, so that the pipeline can move forward and backward.

[0044] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A feeding and rotating mechanism of a cold rolling mill, comprising a fixed sleeve (22), characterized in that: The fixed sleeve (22) is slidably connected to a plurality of sliding rods (31), the ends of the sliding rods (31) penetrate the fixed sleeve (22) and extend into the interior thereof, the peripheral outer walls of the sliding rods (31) are fixedly connected to the limiting sleeves (32), the peripheral outer walls of the sliding rods (31) are sleeved with springs (39), the inner ends of the sliding rods (31) are fixedly connected to hinge seats (33), the inner walls of the hinge seats (33) are rotatably connected to rotating shafts (34), the peripheral outer walls of the rotating shafts (34) are fixedly connected to positioning wheels (35), the ends of the hinge seats (33) are fixedly connected to guide blocks (36), the outer wall of the fixed sleeve (22) is provided with a plurality of driving components, the driving components are used to squeeze the guide blocks (36).

2. The feeding and rotating mechanism of the cold rolling mill according to claim 1, characterized in that: One end of the spring (39) is fixedly connected to the limiting sleeve (32), and the other end of the spring (39) is fixedly connected to the outer wall of the fixing sleeve (22).

3. The feeding and rotating mechanism of the cold rolling mill according to claim 1, characterized in that: The drive assembly comprises a plurality of mounting plates (25), the ends of the mounting plates (25) being fixedly connected to the fixing sleeves (22), the inner walls of the mounting plates (25) being fixedly connected to hydraulic rods (26), the output ends of the hydraulic rods (26) being fixedly connected to second slide plates (29), and the ends of the second slide plates (29) being fixedly connected to connecting plates (27).

4. The feeding and rotating mechanism of the cold rolling mill according to claim 3, characterized in that: The outer wall of the connecting plate (27) is provided with a second sliding hole (30), the outer wall of the connecting plate (27) is fixedly connected with a plurality of extrusion blocks (37), the outer wall of the extrusion blocks (37) is provided with reserved grooves (38), the reserved grooves (38) are suitable for sliding into the sliding rods (31) when the connecting plate (21) moves, and the extrusion blocks (37) produce extrusion on the guide blocks (36) when they move.

5. The feeding and rotating mechanism of the cold rolling mill according to claim 4, characterized in that: The outer wall of the fixing sleeve (22) is provided with a plurality of first sliding holes (23), the end of the fixing sleeve (22) is provided with a plurality of second sliding grooves (24), the first sliding plate (28) is slidably connected to the inner wall of the first sliding hole (23), and the second sliding plate (29) is slidably connected to the inner wall of the second sliding groove (24).

6. The feeding and rotating mechanism of the cold rolling mill according to claim 5, characterized in that: It also comprises a mounting seat (1), the top of which is fixedly connected to two support seats (2), the top of which is fixedly connected to a slide rail (3), the top of which is provided with a first slide groove (4), the inner wall of which is slidably connected to two sliders (5), and the top of which is fixedly connected to a support plate (6).

7. The feeding and rotating mechanism of the cold rolling mill according to claim 6, characterized in that: Two rotating sleeves (7) are provided between the two slide rails (3), and the rotating sleeves (7) are respectively rotatably connected to the support plates (6). The inner wall of the rotating sleeve (7) is fixedly connected to the outer wall of the fixed sleeve (22), and the circumferential outer wall of the rotating sleeve (7) is fixedly connected to a gear ring (8).

8. The feeding and rotating mechanism of the cold rolling mill according to claim 7, characterized in that: A first motor (9) is fixedly connected to the top of one of the support plates (6), wherein first support blocks (10) are fixedly connected to the tops of two of the support plates (6), a drive shaft (11) is rotatably connected between the two first support blocks (10), an end of the drive shaft (11) is fixedly connected to the first motor (9), and two first gears (12) are fixedly connected to the circumferential outer wall of the drive shaft (11), and the first gears (12) are meshed with the ring gear (8).

9. The feeding and rotating mechanism of the cold rolling mill according to claim 8, characterized in that: A second motor (13) is fixedly connected to the top of the mounting seat (1), two second support plates (14) are fixedly connected to the top of the mounting seat (1), an output shaft (15) is rotatably connected between the two second support plates (14), an end of the output shaft (15) is fixedly connected to the second motor (13), and a first bevel gear (17) is fixedly connected to the circumferential outer wall of the output shaft (15).

10. The feeding and rotating mechanism of the cold rolling mill according to claim 9, characterized in that: The outer wall of the fixed sleeve (22) is fixedly connected with a toothed plate (21); a plurality of connecting shafts (18) are rotatably connected between the two support seats (2); the circumferential outer walls of the connecting shafts (18) are fixedly connected with second gears (20); the toothed plate (21) meshes with the second gears (20); the circumferential outer wall of the connecting shaft (18) is fixedly connected with a second bevel gear (19); the second bevel gear (19) meshes with the first bevel gear (17); the circumferential outer wall of the output shaft (15) is rotatably connected with a plurality of shaft sleeves (16); the shaft sleeves (16) are rotatably connected with the connecting shafts (18).

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