Quick-release feeding and clamping device of cold pilger mill

Abstract

The invention belongs to the technical field of cold pilger mills, and discloses a cold pilger mill quick-release feeding clamping device which comprises a mounting plate, a rotating sleeve is rotatably connected to the inner wall of the mounting plate, a rotating ring is fixedly connected to the end of the rotating sleeve, arc plates are mounted on the inner walls of the rotating ring, and connecting rods are fixedly connected to the inner walls of the two arc plates. The ends of the two connecting rods are fixedly connected with limiting plates, the outer walls of the two arc plates are sleeved with springs, and the ends of the two connecting rods are fixedly connected with end covers. In the moving process of the mounting frame, a sliding rod smoothly slides along the inner wall of an arc plate, meanwhile, a spring is gradually compressed, and a fourth motor controls the rotating path of a first gear to enable an extrusion plate to push a limiting plate to move, so that it is ensured that carrier rollers on the mounting frame can oppositely move by a corresponding distance, and the clamping requirements of pipelines with different diameters are met.

Description

Technical Field

[0001] The invention relates to the field of cold rolling tube mills, and more particularly to a quick-detachable feeding clamping device for cold rolling tube mills. Background Art

[0002] Oil casing, also known as petroleum casing, is a steel pipe used to support the well wall of oil and gas wells to ensure the normal operation of the entire oil well during the drilling process and after completion. Each well uses several layers of casing according to different drilling depths and geological conditions. These casings play an important role in fixing the well wall, preventing wellbore collapse, ensuring the circulation of drilling mud, and separating pressures at different levels.

[0003] When producing oil casing, the cold rolling mill changes the size, shape and mechanical properties of the pipe through cold rolling, and improves the precision and surface roughness of the pipe, which is crucial for oil casing. Oil casing needs to withstand complex downhole stress conditions during use. High-precision pipes can better adapt to these stresses and ensure the normal operation of the oil well. In the working process of the cold rolling mill, feeding is a key step. Through feeding, the pipe is sent into the cold rolling mill for processing.

[0004] In the existing technology, such as the document with announcement number CN221675324U, a high-speed cold rolling tube mill feeding mechanism is disclosed. In this document, a series of gears and worm gears are driven by a driving motor to finally drive the rotating wheel to rotate, and the tube is placed in the feeding frame. The rotating wheel clamps and conveys the tube to the feeding port of the cold rolling tube mill through friction. However, when the size of the tube changes, the size of the friction will be affected, resulting in unstable clamping, and the tube is prone to slipping during the conveying process. In actual production, the size of the tube will be different, and the device cannot be adjusted accordingly according to the change of the tube size, thereby limiting its scope of application. In view of this, we propose a quick-release feeding clamping device for a cold rolling tube mill. Summary of the invention

[0005] 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 quick-release feeding clamping device for a cold rolling tube mill, which solves the problem in the related art that when the size of the tube changes, the magnitude of the friction force will be affected, resulting in unstable clamping, and the tube is prone to slipping during transportation. In addition, in actual production, the size of the tube will be different, and the device cannot be adjusted accordingly according to the change in the size of the tube, which limits the technical problem of its scope of application.

[0006] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a quick-detachable feeding clamping device for a cold rolling tube mill comprises a mounting plate, the inner wall of the mounting plate is rotatably connected with a rotating sleeve, the end of the rotating sleeve is fixedly connected with a rotating ring, the inner wall of the rotating ring is mounted with arc plates, the inner walls of the two arc plates are fixedly connected with connecting rods, the ends of the two connecting rods are fixedly connected with limiting plates, the outer walls of the two arc plates are sleeved with springs, the ends of the two connecting rods are fixedly connected with end covers, the ends of the two connecting rods are fixedly connected with mounting frames, the inner walls of the two mounting frames are rotatably connected with rotating shafts, the circumferential outer walls of the two rotating shafts are fixedly connected with rollers, the outer walls of the two rollers are respectively fixedly connected to the corresponding two sliding rods, the outer wall of the rotating sleeve is sleeved with a driving ring, the driving ring is fixedly connected with a plurality of convex teeth, the inner wall of the driving ring is fixedly connected with two extrusion plates, and the two extrusion plates are respectively rotatably connected to the rotating sleeve.

[0007] Preferably, one end of the spring is fixedly connected to the end cover, and the other end of the spring is fixedly connected to the arc plate.

[0008] Preferably, the ends of the rotating sleeves are provided with mounting grooves, the arc plates are slidably connected to the inner walls of the mounting grooves, and the inner walls of the two mounting grooves are provided with two screw holes.

[0009] Preferably, bolts are inserted into the inner walls of the two arc plates, the ends of the bolts pass through the arc plates and extend to the outside thereof, and the ends of the bolts are threadedly connected to the corresponding screw holes.

[0010] Preferably, the outer wall of the rotating sleeve is fixedly connected to two second machine bases, the outer walls of the two second machine bases are fixedly connected to a fourth motor, the output ends of the fourth motors are fixedly connected to the drive shafts, the outer wall of the rotating ring is fixedly connected to two support plates, and the end of the drive shaft passes through the support plates and is rotatably connected thereto.

[0011] Preferably, the circumferential outer wall of the driving shaft is fixedly connected with a first gear, and the first gear is meshed with the convex teeth.

[0012] Preferably, two support frames are fixedly connected to the outer wall of the mounting plate, a guide rod is fixedly connected between the two support frames, a bidirectional threaded rod is rotatably connected between the two support frames, and the top of the bidirectional threaded rod passes through the support frame and extends to the outside thereof.

[0013] Preferably, a second motor is fixedly connected to the top of the support frame located above, and an output end of the second motor is fixedly connected to the bidirectional threaded rod.

[0014] Preferably, two lifting plates are provided between the two support frames, two ends of the guide rod respectively pass through the lifting plates and are slidably connected thereto, two ends of the bidirectional threaded rod respectively pass through the lifting plates and are threadedly connected thereto, the outer walls of the two lifting plates are fixedly connected to brackets, the inner walls of the two brackets are rotatably connected to output shafts, the circumferential outer walls of the two output shafts are fixedly connected to driving rollers, the outer walls of the two lifting plates are fixedly connected to third motors, and the output ends of the two third motors are respectively fixedly connected to the corresponding output shafts.

[0015] Preferably, the outer circumferential wall of the rotating sleeve is fixedly connected with an outer gear ring, the outer wall of the mounting plate is fixedly connected with a first machine base, the outer wall of the first machine base is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a second gear, and the second gear is meshed with the outer gear ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, during the movement of the mounting frame, the slide rod slides smoothly along the inner wall of the arc plate, and the spring is gradually compressed. The fourth motor controls the rotation path of the first gear to make the extrusion plate push the limit plate to move, thereby ensuring that the rollers on the mounting frame can move toward each other by a corresponding distance to meet the clamping requirements of pipes of different diameters.

[0018] 2. In the present invention, the bidirectional threaded rod is driven to rotate by the second motor, so that the two lifting plates move toward each other, and the lifting plates respectively drive the driving rollers to move, and the outer wall of the pipeline is clamped by the two driving rollers to adapt to the use of pipelines of different sizes. The output shaft is driven to rotate by the third motor, and the driving roller is driven to rotate by the output shaft, and the pipeline is moved by the driving roller to realize the transportation of the pipeline.

[0019] 3. In the present invention, when the pipeline needs to be rotated, the second motor rotates in the opposite direction, so that the two driving rollers can loosen the clamping of the pipeline. At this time, the start-up of the first motor drives the rotation of the second gear, and the meshing of the second gear with the outer gear ring causes the outer gear ring to start rotating. The rotation of the outer gear ring drives the rotation of the rotating sleeve, and then drives the pipeline to rotate through the roller.

[0020] 4. In the present invention, the arc plate is designed as a detachable structure. The arc plate can be easily removed by simply removing the bolts, thereby facilitating the replacement and maintenance of the rollers, providing great convenience for the replacement and maintenance work of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the installation structure of the lifting plate of the present invention;

[0024] Figure 3 It is a schematic diagram of the installation structure of the driving roller of the present invention;

[0025] Figure 4 It is a schematic diagram of the installation structure of the roller of the present invention;

[0026] Figure 5 It is a schematic diagram of the split structure of the arc plate of the present invention.

[0027] Explanation of the numbers in the figure: 1. Mounting plate; 2. Rotating sleeve; 3. Rotating ring; 4. Mounting groove; 5. Arc plate; 6. Bolt; 7. Screw hole; 8. Connecting rod; 9. Limiting plate; 10. Sliding rod; 11. End cover; 12. Spring; 13. Drive shaft; 14. First gear; 15. Support plate; 16. Extrusion plate; 17. Drive ring; 18. Protruding tooth; 19. Mounting frame; 20. Rotating shaft; 21. Support roller; 22. Outer gear ring; 23. First base; 24. First motor; 25. Second gear; 26. Support frame; 27. Guide rod; 28. Bidirectional threaded rod; 29. ​​Second motor; 30. Lifting plate; 31. Bracket; 32. Output shaft; 33. Drive roller; 34. Third motor; 35. Second base; 36. Fourth motor. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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.

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, a quick-release feeding clamping device for a cold rolling tube mill includes a mounting plate 1, the inner wall of the mounting plate 1 is rotatably connected to a rotating sleeve 2, the end of the rotating sleeve 2 is fixedly connected to a rotating ring 3, the inner wall of the rotating ring 3 is mounted with an arc plate 5, the inner walls of the two arc plates 5 are fixedly connected to connecting rods 8, the ends of the two connecting rods 8 are fixedly connected to limiting plates 9, the outer walls of the two arc plates 5 are sleeved with springs 12, the ends of the two connecting rods 8 are fixedly connected to end covers 11, the ends of the two connecting rods 8 are fixedly connected to mounting brackets 19, the inner walls of the two mounting brackets 19 are rotatably connected to rotating shafts 20, and the outer walls of the two rotating shafts 20 are fixedly connected There are rollers 21, and the outer walls of the two rollers 21 are fixedly connected to the corresponding two sliding rods 10 respectively. The outer wall of the rotating sleeve 2 is provided with a driving ring 17, and the driving ring 17 is fixedly connected with a plurality of convex teeth 18. The inner wall of the driving ring 17 is fixedly connected with two extrusion plates 16, and the two extrusion plates 16 are rotatably connected to the rotating sleeve 2 respectively. One end of the spring 12 is fixedly connected to the end cover 11, and the other end of the spring 12 is fixedly connected to the arc plate 5. The setting of the spring 12 enables the connecting rod 8 and the limit plate 9 to automatically adjust their positions when they are squeezed, so as to adapt to pipes of different diameters without manual adjustment, thereby improving the flexibility and applicability of the equipment.

[0032] like Figure 4 and Figure 5As shown, the ends of the rotating sleeve 2 are provided with mounting grooves 4, the arc plates 5 are slidably connected to the inner walls of the mounting grooves 4, the inner walls of the two mounting grooves 4 are provided with two screw holes 7, the inner walls of the two arc plates 5 are plugged with bolts 6, the ends of the bolts 6 penetrate the arc plates 5 and extend to the outside thereof, the ends of the bolts 6 are threadedly connected to the corresponding screw holes 7, the outer wall of the rotating sleeve 2 is fixedly connected to two second machine bases 35, the outer walls of the two second machine bases 35 are fixedly connected to fourth motors 36, the output ends of the fourth motors 36 are fixedly connected to the drive shaft 13, the outer wall of the rotating ring 3 is fixedly connected to two support plates 15, the end of the drive shaft 13 penetrates the support The support plate 15 is rotatably connected thereto, and the outer circumferential wall of the driving shaft 13 is fixedly connected with the first gear 14, which is meshed with the convex teeth 18; through the cooperation of the bolt 6 and the screw hole 7, the arc plate 5 can be easily installed in the mounting groove 4 of the rotating sleeve 2, and can also be easily disassembled. This design makes the replacement and maintenance of the roller 21 very convenient, reduces downtime, and improves production efficiency; the fourth motor 36 can accurately control the rotation of the driving ring 17 and the extrusion plate 16 through the meshing of the driving shaft 13 and the first gear 14 with the convex teeth 18, thereby achieving accurate clamping of the pipeline. This design ensures the stability and accuracy of feeding.

[0033] like Figure 2 and Figure 3 As shown, two support frames 26 are fixedly connected to the outer wall of the mounting plate 1, a guide rod 27 is fixedly connected between the two support frames 26, a bidirectional threaded rod 28 is rotatably connected between the two support frames 26, and the top of the bidirectional threaded rod 28 passes through the support frames 26 and extends to the outside thereof.

[0034] like Figure 2 and Figure 3 As shown, the second motor 29 is fixedly connected to the top of the support frame 26 located above, and the second motor 29 is installed on the top of the support frame 26, so that the maintenance and repair of the second motor 29 is more convenient. The output end of the second motor 29 is fixedly connected to the bidirectional threaded rod 28, and the bidirectional threaded rod 28 is driven by the second motor 29 to rotate, so that the position of the lifting plate 30 and the driving roller 33 can be easily adjusted to adapt to pipes of different sizes, thereby improving the adaptability and flexibility.

[0035] like Figure 2 and Figure 3As shown, two lifting plates 30 are arranged between the two support frames 26, two ends of the guide rod 27 respectively penetrate the lifting plates 30 and are slidably connected thereto, two ends of the bidirectional threaded rod 28 respectively penetrate the lifting plates 30 and are threadedly connected thereto, the outer walls of the two lifting plates 30 are fixedly connected with brackets 31, the inner walls of the two brackets 31 are rotatably connected with output shafts 32, the circumferential outer walls of the two output shafts 32 are fixedly connected with driving rollers 33, the outer walls of the two lifting plates 30 are fixedly connected with third motors 34, and the output ends of the two third motors 34 are fixedly connected to the corresponding output shafts 32; the second motor 29 drives the bidirectional threaded rod 28 to rotate, so that the two lifting plates 30 can move toward or oppositely, thereby adjusting the height and clamping force of the driving roller 33. This design enables the equipment to adapt to pipes of different sizes, thereby improving the versatility and flexibility of the equipment.

[0036] like Figure 2 , Figure 3 and Figure 4 As shown, the outer circumferential wall of the rotating sleeve 2 is fixedly connected with an outer gear ring 22, the outer wall of the mounting plate 1 is fixedly connected with a first base 23, the outer wall of the first base 23 is fixedly connected with a first motor 24, the output end of the first motor 24 is fixedly connected with a second gear 25, the second gear 25 is meshed with the outer gear ring 22, and the meshing of the second gear 25 with the outer gear ring 22 ensures the stability of the transmission. The gear transmission itself has the characteristics of constant transmission ratio and high transmission efficiency, thereby realizing smooth rotation.

[0037] Working principle: through the drive of the fourth motor 36, the power is transmitted to the driving shaft 13, and the first gear 14 is driven by the driving shaft 13 to start rotating. During the rotation of the first gear 14, the convex teeth 18 thereon interact with the driving ring 17, so that the driving ring 17 rotates accordingly. The rotation of the driving ring 17 drives the extrusion plate 16 to perform a circular motion. At this time, the extrusion plate 16 applies pressure to the limit plate 9. After being subjected to the force, the limit plate 9 pushes the connecting rod 8 to move toward the inside of the rotating ring 3;

[0038] The mounting frame 19 is pushed to move by the connecting rod 8. As the mounting frame 19 moves, the rollers 21 gradually approach the outer wall of the pipe, and the outer wall of the pipe is clamped by the rollers 21, thereby achieving the clamping function of the pipe.

[0039] When the mounting frame 19 moves, the slide bar 10 is driven to slide along the inner wall of the arc plate 5. When the slide bar 10 slides, the spring 12 is compressed, and the first gear 14 is driven by the fourth motor 36 to drive the drive ring 17 to rotate a certain path, so that the extrusion plate 16 pushes the limit plate 9 to move a certain distance. At this time, the rollers 21 on the mounting frame 19 can move toward each other by a certain distance, so that the pipe can be clamped according to its diameter;

[0040] The bidirectional threaded rod 28 is driven to rotate by the second motor 29, so that the two lifting plates 30 move toward each other, and the lifting plates 30 respectively drive the driving rollers 33 to move, and the outer wall of the pipeline is clamped by the two driving rollers 33 to adapt to the use of pipelines of different sizes, and the output shaft 32 is driven to rotate by the third motor 34, and the driving roller 33 is driven to rotate by the output shaft 32, and the pipeline is driven to move by the driving roller 33;

[0041] If the pipeline needs to be rotated, the second motor 29 only needs to be rotated in the opposite direction, so that the two driving rollers 33 can loosen the clamping of the pipeline. At this time, the start of the first motor 24 drives the rotation of the second gear 25, and the meshing of the second gear 25 with the outer gear ring 22 causes the outer gear ring 22 to start rotating. The rotation of the outer gear ring 22 drives the rotation of the rotating sleeve 2, and then drives the pipeline to rotate through the roller 21;

[0042] In addition, the arc plate 5 is designed as a detachable structure, and the arc plate 5 can be easily removed by simply removing the bolts 6, thereby facilitating the replacement and maintenance of the roller 21.

[0043] 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.

[0044] 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 quick-release feeding clamping device for a cold rolling mill, comprising a mounting plate (1), characterized in that: The inner wall of the mounting plate (1) is rotatably connected to a rotating sleeve (2), the end of the rotating sleeve (2) is fixedly connected to a rotating ring (3), the inner wall of the rotating ring (3) is mounted with an arc plate (5), the inner walls of the two arc plates (5) are fixedly connected to connecting rods (8), the ends of the two connecting rods (8) are fixedly connected to a limiting plate (9), the outer walls of the two arc plates (5) are sleeved with a spring (12), the ends of the two connecting rods (8) are fixedly connected to an end cover (11), and the ends of the two connecting rods (8) are fixedly connected to a mounting frame ( 19), the inner walls of the two mounting frames (19) are rotatably connected to a rotating shaft (20), the circumferential outer walls of the two rotating shafts (20) are fixedly connected to rollers (21), the outer walls of the two rollers (21) are respectively fixedly connected to the corresponding two sliding rods (10), the outer wall of the rotating sleeve (2) is provided with a driving ring (17), the driving ring (17) is fixedly connected to a plurality of convex teeth (18), the inner wall of the driving ring (17) is fixedly connected to two extrusion plates (16), and the two extrusion plates (16) are respectively rotatably connected to the rotating sleeve (2).

2. The quick-release feeding clamping device for cold rolling mill according to claim 1 is characterized in that: One end of the spring (12) is fixedly connected to the end cover (11), and the other end of the spring (12) is fixedly connected to the arc plate (5).

3. The quick-release feeding clamping device for cold rolling mill according to claim 1 is characterized in that: The ends of the rotating sleeves (2) are each provided with a mounting groove (4), the arc plate (5) is slidably connected to the inner wall of the mounting groove (4), and the inner walls of the two mounting grooves (4) are each provided with two screw holes (7).

4. The quick-release feeding clamping device for cold rolling mill according to claim 3 is characterized in that: Bolts (6) are inserted into the inner walls of the two arc plates (5), and the ends of the bolts (6) penetrate the arc plates (5) and extend to the outside thereof. The ends of the bolts (6) are threadedly connected to the corresponding screw holes (7).

5. The quick-release feeding clamping device for cold rolling mill according to claim 1 is characterized in that: The outer wall of the rotating sleeve (2) is fixedly connected to two second machine bases (35), the outer walls of the two second machine bases (35) are fixedly connected to fourth motors (36), the output ends of the fourth motors (36) are fixedly connected to the drive shaft (13), the outer wall of the rotating ring (3) is fixedly connected to two support plates (15), and the end of the drive shaft (13) passes through the support plate (15) and is rotatably connected thereto.

6. The quick-release feeding clamping device for a cold rolling mill according to claim 5, characterized in that: The outer circumferential wall of the driving shaft (13) is fixedly connected with a first gear (14), and the first gear (14) is meshed with a convex tooth (18).

7. The quick-release feeding clamping device for cold rolling mill according to claim 1 is characterized in that: Two support frames (26) are fixedly connected to the outer wall of the mounting plate (1), a guide rod (27) is fixedly connected between the two support frames (26), a bidirectional threaded rod (28) is rotatably connected between the two support frames (26), and the top of the bidirectional threaded rod (28) passes through the support frame (26) and extends to the outside thereof.

8. The quick-release feeding clamping device for a cold rolling mill according to claim 7, characterized in that: A second motor (29) is fixedly connected to the top of the support frame (26) located above, and an output end of the second motor (29) is fixedly connected to a bidirectional threaded rod (28).

9. The quick-release feeding clamping device for a cold rolling mill according to claim 8, characterized in that: Two lifting plates (30) are arranged between the two support frames (26), the two ends of the guide rod (27) respectively penetrate the lifting plates (30) and are slidably connected thereto, the two ends of the bidirectional threaded rod (28) respectively penetrate the lifting plates (30) and are threadedly connected thereto, the outer walls of the two lifting plates (30) are fixedly connected with brackets (31), the inner walls of the two brackets (31) are rotatably connected with output shafts (32), the circumferential outer walls of the two output shafts (32) are fixedly connected with driving rollers (33), the outer walls of the two lifting plates (30) are fixedly connected with third motors (34), and the output ends of the two third motors (34) are fixedly connected with the corresponding output shafts (32) respectively.

10. The quick-release feeding clamping device for a cold rolling mill according to claim 9, characterized in that: The outer circumferential wall of the rotating sleeve (2) is fixedly connected to an outer gear ring (22); the outer wall of the mounting plate (1) is fixedly connected to a first machine base (23); the outer wall of the first machine base (23) is fixedly connected to a first motor (24); the output end of the first motor (24) is fixedly connected to a second gear (25); the second gear (25) is meshed with the outer gear ring (22).

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