Quenching cooler

Abstract

The invention relates to the technical field of drill rod machining, and discloses a quenching cooler which comprises a quenching material receiving mechanism, a rotary supporting mechanism and a spray cooling mechanism, the quenching material receiving mechanism comprises a plurality of conveying rollers, and the conveying rollers are used for receiving pipe materials output by a quenching furnace and driving the pipe materials to axially move; the conveying rollers can be alternately switched to a first height position and a second height position, and the second height position is located below the first height position; the rotary supporting mechanism comprises a supporting frame, driving wheels and a pressing wheel, the multiple driving wheels are arranged on the supporting frame in pairs and located between the first height position and the second height position, each pair of driving wheels are matched to support the pipe materials and drive the pipe materials to rotate, and the pressing wheel is used for pressing the rotating pipe materials; and the spray cooling mechanism is used for spraying cooling water to the rotating pipe material. According to the quenching cooling machine, efficient and uniform cooling of pipe materials is achieved, the quenching process requirement is met, labor input is reduced, and the forming quality and the machining efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of drill rod processing, in particular to a quenching cooling machine. Background Art

[0002] Trenchless drill pipe is manufactured from seamless steel pipes of various specifications, which are processed through multiple steps. The main processes include sawing, thickening, heat treatment, straightening, mechanical property testing, non-destructive testing, and threading. Heat treatment includes quenching, tempering, and surface treatment. The quenching process involves heating the drill pipe above a critical temperature, holding it at that temperature, and then rapidly cooling it to form a martensite or bainite structure, thereby increasing its hardness and wear resistance.

[0003] During the rapid cooling stage of the quenching process, the pipe material is generally cooled by water cooling or oil cooling. However, the pipe material heated to the critical temperature can reach 900°C, which makes manual loading and unloading inconvenient and inefficient, and can easily cause pipe material deformation. In addition, to ensure consistent structural changes, it is necessary to ensure uniform cooling as much as possible. The existing technology uses immersion cooling, which consumes a lot of coolant, is costly, and has a long cooling waiting time, requiring technical improvement. Summary of the Invention

[0004] The object of the present invention is to provide a quenching and cooling machine to solve the problems mentioned in the above background technology, realize automatic completion of the cooling process of the pipe material after quenching, and ensure the molding quality.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A quenching and cooling machine includes a quenching and material receiving mechanism, a rotating support mechanism, and a spray cooling mechanism, wherein:

[0007] The quenching material receiving mechanism includes a plurality of conveying rollers, which are used to receive the pipe material output from the quenching furnace and drive the pipe material to move axially. The conveying rollers can alternately switch to a first height position and a second height position, and the second height position is located below the first height position;

[0008] The rotary support mechanism includes a support frame, a driving wheel and a pressing wheel. A plurality of driving wheels are arranged in pairs on the support frame and are located between a first height position and a second height position. Each pair of driving wheels cooperates to support the pipe material and drive the pipe material to rotate. The pressing wheel is arranged above the driving wheel in a manner that can be raised and lowered. The pressing wheel is used to press the rotating pipe material.

[0009] The spray cooling mechanism is used to spray cooling water on the rotating pipe material.

[0010] As an optional solution, the axles of each pair of driving wheels are arranged side by side, and a first sprocket is provided on the axle of each driving wheel. A second sprocket is provided on one side of each pair of driving wheels, and the second sprockets are connected to the corresponding two first sprockets through a first chain respectively. The second sprockets are connected to each other through a transmission shaft, and any transmission shaft is driven to rotate by the first motor.

[0011] As an optional solution, a tensioning wheel is provided on the support frame and located between each second sprocket and the first sprocket, and the tensioning wheel is used to adjust the tension of the first chain.

[0012] As an optional solution, a rocker arm is hinged on the support frame, and a first driving cylinder is provided on the support frame to drive the rocker arm to swing up and down. A triangular wheel seat is provided at the swinging end of the rocker arm, and two pressing wheels are symmetrically and spaced apart on the triangular wheel seat. The two pressing wheels are in rolling contact with both sides of the pipe material.

[0013] As an optional solution, the quenching material receiving mechanism also includes a support roller, and a conveying shaft is provided on the support roller corresponding to each conveying roller, the conveying shaft extends to the rotating support mechanism, the conveying roller is installed at the end of the conveying shaft, and each conveying shaft is provided with a third sprocket. The third sprockets are connected by a second chain, and the second chain is driven by a second motor.

[0014] As an optional solution, the quenching material receiving mechanism also includes a roller support and a second drive cylinder. The bottom of the supporting roller is hinged to the roller support. The second drive cylinder is used to drive the supporting roller to rotate around the hinge point with the roller support to realize the switching of the conveying roller between the first height position and the second height position.

[0015] As an optional solution, the spray cooling mechanism includes a first spray pipe, which extends to one side of the rotating support mechanism and is aligned with the pipe material, and a first water baffle is provided on the other side of the rotating support mechanism.

[0016] As an optional solution, the spray cooling mechanism further includes a second spray pipe, which extends above the rotating support mechanism. A second water baffle is provided on the support frame for changing the flow direction of water outlet from the second spray pipe.

[0017] As an optional solution, a third driving cylinder is provided on the support frame, the second water baffle is hinged to the support frame, and the third driving cylinder is used to drive the second water baffle to rotate.

[0018] As an optional solution, the quenching and cooling machine also includes a unloading mechanism, and a unloading slope is provided on one side of the rotating support mechanism. The unloading mechanism includes a material stripping plate and a fourth drive cylinder. The material stripping plate is hinged to the support frame, and the fourth drive cylinder is used to drive the material stripping plate to rotate, so that the pipe material is transferred from the rotating support mechanism to the unloading slope.

[0019] Beneficial effects of the present invention:

[0020] The quenching cooling machine transfers the pipe material output from the quenching furnace to the rotating support mechanism through the quenching material receiving mechanism, ensuring the reliable support of the pipe material while driving the pipe material to rotate. The spray cooling mechanism then sprays cooling water on the rotating pipe material, thereby achieving efficient and uniform cooling of the pipe material, meeting the quenching process requirements, reducing labor input, and improving forming quality and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of a quenching cooling machine provided by an embodiment of the present invention;

[0022] Figure 2 1 is a top view of the lower half of the quenching and cooling machine provided by an embodiment of the present invention;

[0023] Figure 3 1 is a top view of the upper half of a quenching and cooling machine provided by an embodiment of the present invention;

[0024] Figure 4 1 is a structural diagram of a quenching material receiving mechanism according to an embodiment of the present invention;

[0025] Figure 5 It is a structural diagram of a rotary support mechanism involved in an embodiment of the present invention.

[0026] In the attached figure:

[0027] 1. Quenching and receiving mechanism; 11. Conveyor roller; 12. Support roller; 13. Conveyor shaft; 14. Third sprocket; 15. Second motor; 16. Roller support; 17. Second drive cylinder;

[0028] 2. Rotating support mechanism; 21. Support frame; 22. Driving wheel; 23. Pressure wheel; 24. First sprocket; 25. Second sprocket; 26. First motor; 27. Tensioning wheel; 28. Rocker; 29. ​​First driving cylinder;

[0029] 3. Spray cooling mechanism; 31. First spray pipe; 32. First water baffle; 33. Second spray pipe; 34. Second water baffle; 35. Third drive cylinder;

[0030] 4. Unloading mechanism; 41. Unloading slope; 42. Discharging plate; 43. Fourth driving cylinder. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0032] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first", "second", etc. are only used to distinguish in description and have no special meaning.

[0036] See also Figures 1 to 5 As shown, this embodiment provides a quenching and cooling machine, including a quenching and receiving mechanism 1, a rotating support mechanism 2 and a spray cooling mechanism 3, wherein:

[0037] The quenching material receiving mechanism 1 includes a plurality of conveying rollers 11, which are used to receive the pipe material output from the quenching furnace and drive the pipe material to move axially. The conveying rollers 11 can alternately switch to a first height position and a second height position, and the second height position is located below the first height position;

[0038] The rotating support mechanism 2 includes a support frame 21, a driving wheel 22, and a pressing wheel 23. A plurality of driving wheels 22 are arranged in pairs on the support frame 21 and are located between a first height position and a second height position. Each pair of driving wheels 22 cooperates to support the pipe material and drive the pipe material to rotate. The pressing wheel 23 is arranged above the driving wheel 22 in a manner that can be raised and lowered. The pressing wheel 23 is used to press the rotating pipe material.

[0039] The spray cooling mechanism 3 is used to spray cooling water on the rotating pipe material.

[0040] Thus, the pipe material output from the quenching furnace is transferred to the rotating support mechanism 2 through the quenching material receiving mechanism 1, ensuring that the pipe material is reliably supported while driving the pipe material to rotate, and then the spray cooling mechanism 3 sprays cooling water on the rotating pipe material, thereby achieving efficient and uniform cooling of the pipe material, meeting the quenching process requirements, reducing labor input, and improving molding quality and processing efficiency.

[0041] Optionally, the axles of each pair of drive wheels 22 are arranged side by side, and a first sprocket 24 is provided on the axle of each drive wheel 22. A second sprocket 25 is provided on one side of each pair of drive wheels 22. The second sprockets 25 are connected to the corresponding two first sprockets 24 respectively through a first chain, and the second sprockets 25 are connected to each other through a transmission shaft, and any transmission shaft is driven to rotate by the first motor 26.

[0042] Thus, the first motor 26 drives the transmission shaft and each second sprocket 25 on the transmission shaft to rotate synchronously, and then drives the corresponding first sprocket 24 and drive wheel 22 to rotate in coordination, so that each pair of drive wheels 22 can form reliable support and transmission for the pipe material, ensuring that the pipe material is evenly stressed during the rotation process to avoid deformation, and the smooth rotation is more conducive to the subsequent spraying of cooling water, thereby improving the cooling effect.

[0043] Furthermore, a tensioning wheel 27 is provided on the support frame 21 and located between each second sprocket 25 and the first sprocket 24 . The tensioning wheel 27 is used to adjust the tension of the first chain.

[0044] Therefore, by adjusting the tensioning wheel 27, it is ensured that the first chain maintains an appropriate tension state, avoiding transmission instability caused by chain relaxation, and further optimizing the support and transmission effect of the driving wheel 22 on the pipe material.

[0045] Optionally, a rocker arm 28 is hinged on the support frame 21, and a first driving cylinder 29 is provided on the support frame 21 to drive the rocker arm 28 to swing up and down. A triangular wheel seat is provided at the swinging end of the rocker arm 28, and two pressing wheels 23 are symmetrically and spaced apart on the triangular wheel seat, and the two pressing wheels 23 are in rolling contact with both sides of the pipe material.

[0046] Therefore, the first driving cylinder 29 controls the rocker arm 28 to swing up and down, thereby driving the two pressing wheels 23 to rise and fall synchronously, so that the pipe material can be moved in and out between the two driving wheels 22, and ensure that the pipe material is compressed while adapting to the requirements of different pipe diameters, maintaining stable rotation of the pipe material, and improving the position accuracy of the pipe material during rotation.

[0047] Optionally, the quenching material receiving mechanism 1 also includes a support roller 12, and a conveying shaft 13 is provided on the support roller 12 corresponding to each conveying roller 11, and the conveying shaft 13 extends toward the rotating support mechanism 2, and the conveying roller 11 is installed at the end of the conveying shaft 13. A third sprocket 14 is provided on each conveying shaft 13, and each third sprocket 14 is connected by a second chain, and the second chain is driven by a second motor 15.

[0048] Thus, the second chain is driven by the second motor 15 to drive the conveying shaft 13 and each conveying roller 11 to rotate synchronously, so that the pipe material is smoothly transferred to the rotating support mechanism 2 after being output from the quenching furnace, thereby achieving stable transportation.

[0049] Furthermore, the quenching material receiving mechanism 1 also includes a roller support 16 and a second drive cylinder 17. The bottom of the support roller 12 is hinged to the roller support 16. The second drive cylinder 17 is used to drive the support roller 12 to rotate around the hinge point with the roller support 16, thereby realizing the switching of the conveying roller 11 between the first height position and the second height position.

[0050] Thus, the second drive cylinder 17 adjusts the pitch angle of the support roller 12, thereby controlling the height position of the conveyor roller 11. When the conveyor roller 11 is at the first height position, the pipe material can be smoothly moved axially above the drive wheels 22. When the conveyor roller 11 is at the second height position, the pipe material smoothly falls between each pair of drive wheels 22, achieving automatic transfer of the pipe material. Given the length of the conveyor shaft 13, the pitch angle of the support roller 12 does not need to be very large; approximately 5° is sufficient for height adjustment. The drive wheels 22 are positioned in the swing path of the conveyor roller 11 to ensure accurate docking.

[0051] Optionally, the spray cooling mechanism 3 includes a first spray pipe 31 , which extends to one side of the rotating support mechanism 2 and is aligned with the pipe material. A first water baffle 32 is provided on the other side of the rotating support mechanism 2 .

[0052] Thus, the rotating pipe material is evenly sprayed and cooled through the first spray pipe 31 , and the first water baffle 32 can effectively prevent the cooling water from splashing.

[0053] Furthermore, the spray cooling mechanism 3 also includes a second spray pipe 33 , which extends to the top of the rotating support mechanism 2 , and a second water baffle 34 for changing the flow direction of water from the second spray pipe 33 is provided on the support frame 21 .

[0054] Therefore, the second spray pipe 33 is used to spray from top to bottom, and the second water baffle 34 accurately controls the water flow to ensure all-round cooling of the pipe material, improve cooling uniformity, prevent cooling water from scattering, and optimize the working environment.

[0055] Furthermore, a third driving cylinder 35 is provided on the support frame 21 , and the second water baffle 34 is hinged to the support frame 21 . The third driving cylinder 35 is used to drive the second water baffle 34 to rotate.

[0056] Therefore, the inclination angle of the second water baffle 34 is adjusted by the third driving cylinder 35, and the spraying range is flexibly controlled to meet the cooling requirements of pipes with different diameters and ensure the optimization of the cooling effect.

[0057] Optionally, the quenching cooling machine also includes a unloading mechanism 4, a unloading slope 41 is provided on one side of the rotating support mechanism 2, the unloading mechanism 4 includes a material transfer plate 42 and a fourth drive cylinder 43, the material transfer plate 42 is hinged on the support frame 21, and the fourth drive cylinder 43 is used to drive the material transfer plate 42 to rotate, so that the pipe material is transferred from the rotating support mechanism 2 to the unloading slope 41.

[0058] Therefore, by controlling the movement of the material stripping plate 42 through the fourth driving cylinder 43, the pipe material is smoothly lifted off the driving wheel 22 and guided to the unloading slope 41, ensuring smooth unloading of the pipe material and avoiding jamming or collision, thereby achieving an efficient and safe unloading process and further improving the smoothness and automation level of the overall production line.

[0059] Specific action process:

[0060] 1) The pipe material output from the quenching furnace is fed along the conveyor roller 11. At this time, the second drive cylinder 17 lifts the support roller 12, the conveyor roller 11 is at the first height position, and the pipe material moves axially to above the drive wheel 22;

[0061] 2) The second drive cylinder 17 contracts, the conveying roller 11 switches to the second height position, and the pipe material falls between each pair of drive wheels 22;

[0062] 3) The first motor 26 starts, driving each pair of drive wheels 22 to rotate synchronously, thereby driving the pipe to rotate. At the same time, the first drive cylinder 29 drives the rocker 28 to swing downward, driving the two pressing wheels 23 on the triangular wheel seat to press against the pipe to ensure the accurate position of the pipe;

[0063] 4) The first spray pipe 31 and the second spray pipe 33 are respectively started to spray and cool the rotating pipe material in all directions. At the same time, the third drive cylinder 35 adjusts the angle of the second water baffle 34 to optimize the spray range;

[0064] 5) After cooling is completed, the first drive cylinder 29 drives the rocker 28 to swing upward, releasing the pipe material, and the first motor 26 stops, the pipe material stops rotating, and the fourth drive cylinder 43 drives the material diverter plate 42 to rotate, guiding the pipe material smoothly to the discharge slope 41 for smooth discharge;

[0065] 6) All components are reset to prepare for the next round of pipe cooling to ensure continuous and efficient production.

[0066] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Quenching cooling machine, characterized in that, It comprises a quenching material receiving mechanism (1), a rotating support mechanism (2) and a spray cooling mechanism (3), wherein: The quenching material receiving mechanism (1) comprises a plurality of conveying rollers (11), the conveying rollers (11) being used to receive the pipe material outputted from the quenching furnace and drive the pipe material to move axially, the conveying rollers (11) being capable of switching alternately to a first height position and a second height position, the second height position being located below the first height position; The rotating support mechanism (2) comprises a support frame (21), a driving wheel (22) and a pressing wheel (23); a plurality of the driving wheels (22) are arranged in pairs on the support frame (21) and are located between the first height position and the second height position; each pair of the driving wheels (22) cooperates to support the pipe material and drive the pipe material to rotate; the pressing wheel (23) is arranged above the driving wheel (22) in a manner that allows it to be raised and lowered; and the pressing wheel (23) is used to press the rotating pipe material; The spray cooling mechanism (3) is used for spraying cooling water on the rotating pipe material.

2. The quenching cooling machine according to claim 1, characterized in that The axles of each pair of driving wheels (22) are arranged side by side, and a first sprocket (24) is provided on the axle of each driving wheel (22). A second sprocket (25) is provided on one side of each pair of driving wheels (22), and the second sprockets (25) are connected to the corresponding two first sprockets (24) respectively through a first chain, and the second sprockets (25) are connected to each other through a transmission shaft, and any of the transmission shafts is driven to rotate by a first motor (26).

3. The quenching cooling machine according to claim 2, characterized in that: A tensioning wheel (27) is provided on the support frame (21) and located between each of the second sprockets (25) and the first sprocket (24). The tensioning wheel (27) is used to adjust the tension of the first chain.

4. The quenching cooling machine according to claim 1, characterized in that A swing rod (28) is hinged on the support frame (21), and a first driving cylinder (29) is provided on the support frame (21) for driving the swing rod (28) to swing up and down. A triangular wheel seat is provided at the swinging end of the swing rod (28), and two pressing wheels (23) are symmetrically and spaced apart on the triangular wheel seat, and the two pressing wheels (23) are in rolling contact with both sides of the pipe material.

5. The quenching cooling machine according to claim 1, characterized in that The quenching material receiving mechanism (1) further comprises a supporting roller (12), a conveying shaft (13) is provided on the supporting roller (12) corresponding to each of the conveying rollers (11), the conveying shaft (13) extends toward the rotating support mechanism (2), the conveying rollers (11) are mounted on the ends of the conveying shafts (13), a third sprocket (14) is provided on each of the conveying shafts (13), and each of the third sprockets (14) is connected by a second chain, and the second chain is driven to move by a second motor (15).

6. The quenching cooling machine according to claim 5, characterized in that The quenching material receiving mechanism (1) further comprises a roller support (16) and a second driving cylinder (17), wherein the bottom of the supporting roller (12) is hinged to the roller support (16), and the second driving cylinder (17) is used to drive the supporting roller (12) to rotate around the hinge point with the roller support (16), thereby realizing the switching of the conveying roller (11) between the first height position and the second height position.

7. The quenching cooling machine according to claim 1, characterized in that The spray cooling mechanism (3) comprises a first spray pipe (31), the first spray pipe (31) extending to one side of the rotating support mechanism (2) and aligned with the pipe material, and a first water baffle (32) is provided on the other side of the rotating support mechanism (2).

8. The quenching cooling machine according to claim 7, characterized in that The spray cooling mechanism (3) further comprises a second spray pipe (33), the second spray pipe (33) extending to above the rotating support mechanism (2), and a second water baffle (34) for changing the water flow direction of the second spray pipe (33) is provided on the support frame (21).

9. The quenching cooling machine according to claim 8, characterized in that: A third driving cylinder (35) is provided on the support frame (21), the second water baffle (34) is hinged to the support frame (21), and the third driving cylinder (35) is used to drive the second water baffle (34) to rotate.

10. The quenching cooling machine according to claim 1, characterized in that The invention also includes a material discharge mechanism (4), a material discharge slope (41) is provided on one side of the rotary support mechanism (2), and the material discharge mechanism (4) includes a material discharge plate (42) and a fourth driving cylinder (43), the material discharge plate (42) is hinged to the support frame (21), and the fourth driving cylinder (43) is used to drive the material discharge plate (42) to rotate, so that the pipe material is transferred from the rotary support mechanism (2) to the material discharge slope (41).

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