A quenching device for oil casing production

Abstract

The invention discloses a quenching device for oil casing production, which belongs to the field of quenching devices and comprises a quenching frame, wherein a circular plate is arranged at the bottom of the inner cavity of the quenching frame, and further comprises: a rotating assembly, wherein the rotating assembly comprises a rotating rod fixedly mounted on the circular plate, wherein the rotating rod is rotatably mounted with the quenching frame, wherein a motor is fixedly mounted at the bottom of the quenching frame, wherein the output shaft of the motor is fixedly mounted with the bottom end of the rotating rod, wherein stirring rods are evenly fixedly mounted on the outer wall of the circular plate, wherein buffer blocks are evenly fixedly mounted on the top of the circular plate, wherein an anti-slip block is fixedly mounted on the top of each group of the buffer blocks, and wherein an oil casing body is arranged in the quenching frame; wherein bubbles can be made to rise to the liquid surface faster in the process of water quenching, wherein the existence of bubbles can be avoided so as to avoid the situation that an isolation layer is formed on the surface of the oil casing body, thereby reducing the contact area between metal and water and the cooling efficiency, thereby effectively improving the quenching effect.

Description

Technical Field

[0001] The invention relates to the field of quenching devices, and more specifically to a quenching device for oil casing production. Background Art

[0002] Oil casing is an important equipment used in oil and gas wells in the petroleum and natural gas industry. Its main function is to support the wellbore structure, isolate the fluids in different formations, and prevent the wellbore from collapsing. During the production process of oil casing, in order to improve the mechanical properties and durability of the oil casing, it needs to be quenched. Quenching is an important heat treatment process.

[0003] There are usually several ways to quench oil casing: oil quenching, water quenching, gas quenching, brine quenching and mixed quenching. For water quenching, during the water quenching process, the high-temperature oil casing will react with water when entering the water for cooling, and cause gas generation. These gases will form bubbles in the water. The presence of bubbles will form an isolation layer on the surface of the oil casing, which will not only reduce the contact area between the metal and water, but also affect the cooling efficiency, resulting in unsatisfactory quenching effect. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a quenching device for oil casing production, which can make bubbles rise to the liquid surface faster during the water quenching process, avoid the existence of bubbles forming an isolation layer on the surface of the oil casing body, thereby reducing the contact area between metal and water and the cooling efficiency, and further effectively improve the quenching effect.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A quenching device for oil casing production comprises a quenching frame, wherein a circular plate is arranged at the bottom of the inner cavity of the quenching frame;

[0007] Also includes:

[0008] A rotating assembly, the rotating assembly includes a rotating rod fixedly mounted on the circular plate, the rotating rod and the quenching frame are rotatably mounted, a motor is fixedly mounted on the bottom of the quenching frame, the output shaft of the motor is fixedly mounted on the bottom end of the rotating rod, stirring rods are evenly fixedly mounted on the outer wall of the circular plate, buffer blocks are evenly fixedly mounted on the top of the circular plate, an anti-sliding block is fixedly mounted on the top of each group of the buffer blocks, an oil casing body is arranged in the quenching frame, the bottom of the oil casing body is contacted with the top of each group of the anti-sliding blocks, and a vibration assembly is arranged in the bottom of the quenching frame.

[0009] Furthermore, the vibration assembly includes a fixed cavity opened in the bottom of the quenching frame, L-shaped rods are evenly arranged in the fixed cavity, the top end of each group of L-shaped rods is fixedly installed on the bottom of the circular plate, the top of the quenching frame is opened with a sliding groove adapted to the L-shaped rods, a fixing plate is evenly fixedly installed on one side of each group of L-shaped rods, a limiting plate is fixedly installed on one side of two adjacent groups of fixing plates close to the adjacent L-shaped rods, a fixing ball is arranged on one side of each group of limiting plates away from the adjacent L-shaped rods, each group of fixing balls is located between two adjacent groups of fixing plates, an elastic rod is fixedly installed on the bottom of each group of fixing balls, and the other end of each group of elastic rods is fixedly installed on the inner cavity top wall of the fixed cavity.

[0010] Furthermore, a reciprocating screw is fixedly mounted on the top of the rotating rod, a guide column is fixedly mounted on the top of the reciprocating screw, balls 1 are evenly rolled and mounted on the outer wall of the guide column, and each group of balls 1 is arranged in contact with the inner wall of the oil casing body.

[0011] Furthermore, a piston plate is threadedly mounted on the outer wall of the reciprocating screw, a sealing ring is fixedly mounted on the outer wall of the piston plate, the sealing ring is arranged in contact with the inner wall of the oil casing body, and through openings are evenly opened on the guide column.

[0012] Furthermore, the top of the quenching frame is evenly provided with slots, each group of the slots is located below the circular plate, the inner cavity of each group of the slots is slidably installed with a movable block, and a telescopic spring is fixedly installed between each group of the movable block and the bottom wall of the inner cavity of the adjacent slots.

[0013] Furthermore, a second ball is rollingly mounted on the top of each group of movable blocks, and grooves matching the second ball are evenly formed on the bottom of the circular plate.

[0014] Furthermore, each group of the balls 2 is arranged in contact with the inner cavity of the adjacent groove, and each group of the telescopic springs is in a compressed state in its initial state.

[0015] Furthermore, a sealing ring is fixedly mounted on the bottom of the circular plate, and the sealing ring is arranged in contact with the bottom wall of the inner cavity of the quenching frame.

[0016] Furthermore, each group of the slots and the slide grooves are located on the inner side of the sealing ring, and a fixed tube is fixedly installed on one side of the quenching frame.

[0017] Furthermore, a bottom plate is fixedly installed at the bottom of the motor, and support rods are evenly fixedly installed between the bottom plate and the bottom of the quenching frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) In this scheme, while the circular plate drives each group of buffer blocks to rotate, the anti-sliding block also drives the oil casing body to rotate, which can effectively improve the stability of the oil casing body during rotation. The stirring of the stirring rod can improve the uniformity of the water temperature in the quenching frame. At the same time, the bubbles will be affected by shear force and impact force, causing larger bubbles to be broken into smaller bubbles, which helps to increase the surface area of ​​the bubbles and make the bubbles rise to the liquid surface faster. This can avoid the existence of bubbles forming an isolation layer on the surface of the oil casing body, thereby reducing the contact area between metal and water and the cooling efficiency, and thus effectively improving the quenching effect.

[0020] (2) In this scheme, the circular plate drives each group of L-shaped rods to rotate, so that each group of fixed balls can reciprocate and hit the side walls of the adjacent limit plates and generate vibrations, which can vibrate the water inside the quenching frame. The vibration will cause the liquid to move periodically, thereby causing the bubbles to move in the water. The bubbles will flow along the liquid under the action of vibration, and increase the rupture and dispersion of the bubbles, further eliminating the bubbles, avoiding the uneven cooling caused by the existence of bubbles, and further causing uneven hardness distribution, which can effectively improve the overall performance of the oil casing body.

[0021] (3) This solution drives the piston plate to move up and down by rotating the reciprocating screw, which can realize the reciprocating replacement of water in the oil casing body and the quenching frame, achieve the uniformity of the overall water quenching temperature, effectively improve the quenching efficiency, and further effectively improve the quality of the final oil casing body. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 It is a cross-sectional view of the oil casing body of the present invention;

[0024] Figure 3 For the present invention Figure 2 A magnified view of the structure of the middle part A;

[0025] Figure 4 It is an overall cross-sectional view of the present invention;

[0026] Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle B section;

[0027] Figure 6 It is a schematic structural diagram of the L-shaped rod of the present invention.

[0028] Description of the numbers in the figure:

[0029] 1. Quenching frame; 2. Round plate; 3. Buffer block; 4. Anti-sliding block; 5. Oil casing body; 6. Rotating rod; 7. Motor; 8. Stirring rod; 9. Fixed cavity; 10. L-shaped rod; 11. Slide groove; 12. Fixed plate; 13. Limit plate; 14. Elastic rod; 15. Fixed ball; 16. Reciprocating screw; 17. Guide column; 18. Ball 1; 19. Piston plate; 20. Sealing ring; 21. Through port; 22. Slot; 23. Movable block; 24. Telescopic spring; 25. Ball 2; 26. Groove; 27. Sealing ring; 28. Bottom plate; 29. ​​Support rod; 30. Fixed tube. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 6 , a quenching device for oil casing production, comprising a quenching frame 1, a circular plate 2 is arranged at the bottom of the inner cavity of the quenching frame 1;

[0032] Also includes:

[0033] A rotating assembly includes a rotating rod 6 fixedly mounted on a circular plate 2, the rotating rod 6 is rotatably mounted with a quenching frame 1, a motor 7 is fixedly mounted at the bottom of the quenching frame 1, an output shaft of the motor 7 is fixedly mounted with the bottom end of the rotating rod 6, stirring rods 8 are evenly fixedly mounted on the outer wall of the circular plate 2, buffer blocks 3 are evenly fixedly mounted on the top of the circular plate 2, an anti-sliding block 4 is fixedly mounted on the top of each group of buffer blocks 3, an oil casing body 5 is arranged in the quenching frame 1, the bottom of the oil casing body 5 is contacted with the top of each group of anti-sliding blocks 4, and a vibration assembly is arranged in the bottom of the quenching frame 1.

[0034] The vibration assembly includes a fixed cavity 9 opened in the bottom of the quenching frame 1, L-shaped rods 10 are evenly arranged in the fixed cavity 9, the top of each group of L-shaped rods 10 is fixedly installed on the bottom of the circular plate 2, and a slide groove 11 adapted to the L-shaped rods 10 is opened on the top of the quenching frame 1. A fixed plate 12 is evenly fixedly installed on one side of each group of L-shaped rods 10, and a limiting plate 13 is fixedly installed on one side of two adjacent groups of fixing plates 12 close to the adjacent L-shaped rods 10. A fixed ball 15 is arranged on the side of each group of limiting plates 13 away from the adjacent L-shaped rods 10, and each group of fixed balls 15 is located between two adjacent groups of fixed plates 12. An elastic rod 14 is fixedly installed on the bottom of each group of fixed balls 15, and the other end of each group of elastic rods 14 is fixedly installed on the inner cavity top wall of the fixed cavity 9.

[0035] First, pour clean and room temperature water into the quenching frame 1. Using room temperature water can effectively avoid thermal shock caused by rapid temperature changes. Then, the oil casing body 5 after heat treatment is placed on the top of each group of anti-sliding blocks 4. Through the gravity of the oil casing body 5 itself, when the oil casing body 5 falls on the anti-sliding block 4, the buffer block 3 will be pressed by the anti-sliding block 4. The setting of the buffer block 3 can realize buffering of the oil casing body 5. Turn on the motor 7. The output shaft of the motor 7 drives the circular plate 2 to rotate through the rotating rod 6. When the circular plate 2 rotates, it will drive each group of buffer blocks 3 to rotate. The setting of the anti-sliding block 4 can increase the friction between the oil casing body 5 and the anti-sliding block 4. When the circular plate 2 drives each group of buffer blocks 3 to rotate, it will drive the oil casing body 5 to rotate through the anti-sliding block 4, which can effectively improve the stability of the oil casing body 5 during rotation. The rotation of the circular plate 2 will also drive the stirring rod 8 to rotate. The stirring rod 8 can be used to stir and mix the water in the quenching frame 1, thereby improving the uniformity of the water temperature in the quenching frame 1 and avoiding uneven water flow during water quenching, which will cause some areas to cool too fast or too slow, thereby causing uneven hardness distribution of the oil casing body 5. In addition, the high-temperature oil casing body 5 will react with the water when entering the water for cooling, and cause gas to be generated in the water to produce bubbles. Through the stirring of the stirring rod 8, the bubbles will be subjected to shear force and impact force, causing larger bubbles to be broken into smaller bubbles, which helps to increase the surface area of ​​the bubbles, allowing the bubbles to rise to the liquid surface faster, and avoiding the existence of bubbles forming an isolation layer on the surface of the oil casing body 5, thereby reducing the contact area between the metal and the water and the cooling efficiency, thereby effectively improving the quenching effect;

[0036] When the circular plate 2 rotates, it will also drive each group of L-shaped rods 10 to rotate. The L-shaped rods 10 move in the inner cavity of the slide groove 11. When the rod wall of the L-shaped rod 10 contacts the lower arc surface of the fixed ball 15 and continues to move, the L-shaped rod 10 will push the fixed ball 15 to deflect and bend the elastic rod 14 between the two adjacent groups of fixed plates 12. When the rod wall of the L-shaped rod 10 is separated from the lower half of the fixed ball 15, at this time, under the action of the elastic rod 14, the elastic rod 14 restores the initial state and drives the fixed ball 15 to move in the direction of the initial position. Under the inertia of the fixed ball 15 itself, the elastic rod 14 can drive the fixed ball 15 to hit the limit plate 13. By setting the two adjacent groups of fixed plates 12, it can be achieved. The fixed balls 15 are now guided to move, which plays a guiding role, so that the fixed balls 15 can stably collide with the limit plates 13. At this time, the circular plate 2 drives each group of L-shaped rods 10 to realize that each group of fixed balls 15 can reciprocate and collide with the side walls of adjacent limit plates 13 and generate vibrations during the rotation process, and the water inside the quenching frame 1 can be vibrated. The vibration will cause the liquid to move periodically, thereby causing the bubbles to move in the water. The bubbles will flow along the liquid under the action of vibration, and increase the rupture and dispersion of the bubbles, and further eliminate the bubbles, which can avoid the uneven cooling caused by the existence of bubbles, and then cause the uneven hardness distribution, and can effectively improve the overall performance of the oil casing body 5.

[0037] like Figures 2 to 4 As shown, a reciprocating screw 16 is fixedly installed on the top of the rotating rod 6, and a guide column 17 is fixedly installed on the top of the reciprocating screw 16. Balls 18 are evenly rolled and installed on the outer wall of the guide column 17. Each group of balls 18 is arranged in contact with the inner wall of the oil casing body 5.

[0038] A piston plate 19 is threadedly mounted on the outer wall of the reciprocating screw rod 16 , a sealing ring 20 is fixedly mounted on the outer wall of the piston plate 19 , the sealing ring 20 is arranged in contact with the inner wall of the oil casing body 5 , and through openings 21 are evenly opened on the guide column 17 .

[0039] The arc-shaped setting of the top of the guide column 17 can facilitate the sleeve of the oil casing body 5 on the guide column 17. Through the setting of each group of balls 18, after the oil casing body 5 is sleeved on the guide column 17, the oil casing body 5 will slide down quickly along the balls 18, so that the oil casing body 5 can be guided and transported, which is convenient for placement. At the same time, the setting of the balls 18 can reduce the friction generated by the oil casing body 5 during movement, and avoid the situation where the inner wall of the oil casing body 5 is damaged due to wear. The output shaft of the motor 7 drives the rotating rod 6 to rotate and also drives the reciprocating screw 16 to rotate synchronously. The rotation of the reciprocating screw 16 drives the piston plate 19 to move up and down. When the piston plate 19 moves up and down, it drives the sealing ring 20 to move synchronously on the inner wall of the oil casing body 5. The setting of the sealing ring 20 can realize the inner wall of the piston plate 19 and the oil casing body 5. The walls are sealed. When the piston plate 19 moves upward, the piston plate 19 draws the water in the quenching frame 1 into the oil casing body 5 and places it below the piston plate 19. Through the gap between the guide column 17 and the inner cavity wall of the oil casing body 5 and the setting of each group of through ports 21, the water above the piston plate 19 in the oil casing body 5 is squeezed out and discharged into the quenching frame 1. When the piston plate 19 moves downward, the piston plate 19 draws the water in the quenching frame 1 into the oil casing body 5 and places it above the piston plate 19. At the same time, the water below the piston plate 19 in the oil casing body 5 is squeezed out and discharged into the quenching frame 1. The water discharged into the quenching frame 1 can quickly achieve temperature uniformity under the stirring of the stirring rod 8. At this time, the water in the oil casing body 5 can be replaced to achieve uniformity of the overall water quenching temperature, which can effectively improve the quenching efficiency and further effectively improve the quality of the final oil casing body 5.

[0040] like Figure 4 and Figure 5 As shown, the top of the quenching frame 1 is evenly provided with slots 22, each group of slots 22 is located below the circular plate 2, a movable block 23 is slidably installed in the inner cavity of each group of slots 22, and a telescopic spring 24 is fixedly installed between each group of movable blocks 23 and the bottom wall of the inner cavity of the adjacent slots 22.

[0041] A second ball 25 is rotatably mounted on the top of each group of movable blocks 23 , and grooves 26 matching the second ball 25 are evenly formed on the bottom of the circular plate 2 .

[0042] Each group of balls 25 is disposed in contact with the inner cavity of the adjacent groove 26, and each group of telescopic springs 24 is in a compressed state in its initial state.

[0043] The output shaft of the motor 7 drives the circular plate 2 to rotate through the rotating rod 6. When the ball 25 moves out of the inner cavity of the groove 26, the ball 25 will move to the bottom plane of the circular plate 2. The ball 25 is squeezed downward by the circular plate 2. When the ball 25 moves downward, it squeezes the movable block 23 to slide downward in the inner cavity of the slot 22 and squeezes the telescopic spring 24. When the ball 25 moves to the position of the next group of grooves 26, under the action of the telescopic spring 24, the telescopic spring 24 returns to its initial state and pushes The movable block 23 drives the second ball 25 to move to the initial position, so that the second ball 25 can be inserted into the inner cavity of the groove 26 and impact. At this time, during the rotation of the circular plate 2, the second ball 25 can reciprocately impact the inner cavity of the groove 26 and vibrate the circular plate 2. The shock wave will be transmitted to the stirring rod 8, further increasing the vibration frequency, and once again improving the efficiency of eliminating bubbles by vibration, thereby effectively improving the water quenching effect of the oil casing body 5, and further effectively improving the mechanical properties and durability of the oil casing body 5.

[0044] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a sealing ring 27 is fixedly installed at the bottom of the circular plate 2 , and the sealing ring 27 is arranged in contact with the bottom wall of the inner cavity of the quenching frame 1 .

[0045] Each group of slots 22 and slide grooves 11 are located on the inner side of the sealing ring 27 , and a fixing pipe 30 is fixedly installed on one side of the quenching frame 1 .

[0046] A bottom plate 28 is fixedly mounted on the bottom of the motor 7 , and support rods 29 are evenly fixedly mounted between the bottom plate 28 and the bottom of the quenching frame 1 .

[0047] By setting the sealing ring 27, the circular plate 2 and the bottom wall of the inner cavity of the quenching frame 1 can be sealed. Since each group of grooves 22 and the slide groove 11 are located on the inner side of the sealing ring 27, water in the quenching frame 1 can be prevented from entering the inner cavity of the grooves 22 and the fixed cavity 9, thereby effectively protecting the components.

[0048] Working principle: First, pour clean and room temperature water into the quenching frame 1, and then place the heated oil casing body 5 on the guide column 17. The oil casing body 5 will slide down along the ball 18 to the anti-sliding block 4. The high-temperature oil casing body 5 will react with the water when entering the water for cooling, and cause gas to be generated in the water to produce bubbles. Turn on the motor 7, and the output shaft of the motor 7 drives the circular plate 2 to rotate through the rotating rod 6. The circular plate 2 drives the stirring rod 8 to rotate, which will stir the water temperature in the quenching frame 1 evenly and eliminate bubbles. At the same time, the cooperation of the L-shaped rod 10 and the fixed ball 15 can realize the quenching of the quenching frame. 1 generates vibration, which can eliminate bubbles. The rotating rod 6 will drive the reciprocating screw 16 to move synchronously during the rotation process, and the reciprocating screw 16 will drive the piston plate 19 to move up and down, which can replace and mix the water in the inner cavity of the oil casing body 5 with the water in the quenching frame 1, thereby improving the uniformity of water temperature. At the same time, during the rotation process, the circular plate 2, through the cooperation of the ball 25 and the groove 26, and under the action of the telescopic spring 24, hits the circular plate 2 and generates vibration, which further increases the vibration frequency and once again improves the effect of eliminating bubbles, thereby improving the effect of water quenching on the oil casing body 5.

[0049] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quenching device for oil casing production, comprising a quenching frame (1), wherein a circular plate (2) is arranged at the bottom of the inner cavity of the quenching frame (1). Features: Also includes: A rotating assembly, the rotating assembly comprising a rotating rod (6) fixedly mounted on the circular plate (2), the rotating rod (6) being rotatably mounted on the quenching frame (1), a motor (7) being fixedly mounted on the bottom of the quenching frame (1), an output shaft of the motor (7) being fixedly mounted on the bottom end of the rotating rod (6), stirring rods (8) being evenly fixedly mounted on the outer wall of the circular plate (2), buffer blocks (3) being evenly fixedly mounted on the top of the circular plate (2), an anti-sliding block (4) being fixedly mounted on the top of each group of the buffer blocks (3), an oil casing body (5) being arranged in the quenching frame (1), the bottom of the oil casing body (5) being arranged in contact with the top of each group of the anti-sliding block (4), and a vibration assembly being arranged at the bottom of the quenching frame (1); The vibration assembly comprises a fixed cavity (9) provided in the bottom of the quenching frame (1), L-shaped rods (10) are evenly arranged in the fixed cavity (9), the top of each group of the L-shaped rods (10) are fixedly mounted on the bottom of the circular plate (2), the top of the quenching frame (1) is provided with a slide groove (11) adapted to the L-shaped rods (10), a fixed plate (12) is evenly fixedly mounted on one side of each group of the L-shaped rods (10), and two adjacent groups of the fixed plates (12) are close to each other. A limiting plate (13) is fixedly mounted on one side of the adjacent L-shaped rods (10); a fixing ball (15) is arranged on the side of each group of limiting plates (13) away from the adjacent L-shaped rods (10); each group of fixing balls (15) is located between two adjacent groups of fixing plates (12); an elastic rod (14) is fixedly mounted on the bottom of each group of fixing balls (15); and the other end of each group of elastic rods (14) is fixedly mounted on the top wall of the inner cavity of the fixing cavity (9); When the circular plate (2) rotates, each group of L-shaped rods (10) is also driven to rotate. The L-shaped rods (10) move in the inner cavity of the slide groove (11). When the rod wall of the L-shaped rod (10) contacts the lower arc surface of the fixed ball (15) and continues to move, the L-shaped rod (10) pushes the fixed ball (15) to deflect between two adjacent groups of fixed plates (12) and bend the elastic rod (14). When the rod wall of the L-shaped rod (10) is separated from the lower half of the fixed ball (15), the elastic rod (14) restores its initial state under the action of the elastic rod (14) and drives the fixed ball (15) to its initial position. The fixed balls (15) are moved in the same direction as the fixed balls (15), and under the inertia of the fixed balls (15), the elastic rods (14) can drive the fixed balls (15) to collide with the limiting plates (13). By setting two adjacent groups of fixed plates (12), the fixed balls (15) can be guided to move, playing a guiding role, so that the fixed balls (15) can be stably collided with the limiting plates (13). At this time, the circular plates (2) drive the groups of L-shaped rods (10) to reciprocate and collide with the side walls of the adjacent limiting plates (13) during the rotation process, thereby generating vibrations, so that the water in the quenching frame (1) can be vibrated.

2. The quenching device for oil casing production according to claim 1 is characterized in that: A reciprocating screw (16) is fixedly mounted on the top of the rotating rod (6), a guide column (17) is fixedly mounted on the top of the reciprocating screw (16), and balls (18) are evenly and rollingly mounted on the outer wall of the guide column (17), and each group of balls (18) is arranged in contact with the inner wall of the oil casing body (5).

3. A quenching device for oil casing production according to claim 2, characterized in that: A piston plate (19) is threadedly mounted on the outer wall of the reciprocating screw rod (16), a sealing ring (20) is fixedly mounted on the outer wall of the piston plate (19), the sealing ring (20) is arranged in contact with the inner wall of the oil casing body (5), and through openings (21) are evenly formed on the guide column (17).

4. The quenching device for oil casing production according to claim 1 is characterized in that: The top of the quenching frame (1) is evenly provided with slots (22), each group of the slots (22) is located below the circular plate (2), a movable block (23) is slidably mounted in the inner cavity of each group of the slots (22), and a telescopic spring (24) is fixedly mounted between each group of the movable block (23) and the bottom wall of the inner cavity of the adjacent slot (22).

5. The quenching device for oil casing production according to claim 4 is characterized in that: A second ball (25) is rotatably mounted on the top of each group of the movable blocks (23), and grooves (26) matching the second ball (25) are evenly formed on the bottom of the circular plate (2).

6. A quenching device for oil casing production according to claim 5, characterized in that: Each group of the second rolling balls (25) is arranged in contact with the inner cavity of the adjacent groove (26), and each group of the telescopic springs (24) is in a compressed state in its initial state.

7. A quenching device for oil casing production according to claim 4, characterized in that: A sealing ring (27) is fixedly mounted on the bottom of the circular plate (2), and the sealing ring (27) is arranged in contact with the bottom wall of the inner cavity of the quenching frame (1).

8. A quenching device for oil casing production according to claim 7, characterized in that: Each group of the slots (22) and the slide grooves (11) are located on the inner side of the sealing ring (27), and a fixing tube (30) is fixedly mounted on one side of the quenching frame (1).

9. The quenching device for oil casing production according to claim 1, characterized in that: A bottom plate (28) is fixedly mounted on the bottom of the motor (7), and support rods (29) are evenly fixedly mounted between the bottom plate (28) and the bottom of the quenching frame (1).

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