Toughened carbon steel forge piece quenching equipment for oil and gas equipment

Abstract

The utility model relates to the technical field of quenching of oil and gas equipment parts, in particular to strengthening and toughening carbon steel forge piece quenching equipment for oil and gas equipment, which comprises a quenching tank and a quenching basket for bearing carbon steel forge pieces, and a transfer mechanism for transferring the plane position of the quenching basket is arranged on one side of the quenching tank; and the transfer mechanism comprises a rotating column which is rotationally arranged, a guide piece is arranged on the rotating column, a transfer rod is arranged in the guide piece in a sliding mode, and a swing assembly used for adjusting the vertical height of the quenching basket is arranged on the transfer rod. The quenching basket below the quenching furnace can be directly transferred to the position above the quenching tank through the transferring mechanism, carbon steel forgings are quenched through the cooperation of the swing assembly, the transferring speed of the whole quenching basket is high, compared with traditional hoisting, the mutual cooperation reaction of the transferring mechanism and the swing assembly is faster, and the hoisting efficiency is improved. The quenching time of the carbon steel forgings from the discharging of the quenching furnace to the feeding of the quenching tank is effectively controlled, and the reject ratio of heat treatment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of quenching technology for oil and gas equipment parts, and in particular to a quenching equipment for toughening carbon steel forgings for oil and gas equipment. Background Technology

[0002] Surface heat treatment of forgings is a process that alters the microstructure and properties of a workpiece by heat-treating only its surface. This typically results in a surface with high hardness and wear resistance, while the core retains sufficient plasticity and toughness. In production, steel with a specific composition is first selected to ensure the core's mechanical properties meet requirements. Then, surface heat treatment methods are applied to strengthen the surface layer and achieve the desired performance. Surface heat treatment is broadly classified into two categories: surface quenching and surface chemical heat treatment.

[0003] The quenching time for carbon steel forgings used in existing oil and gas equipment should be controlled within half a minute from the time they exit the quenching furnace to the time they enter the quenching tank. This can improve the process quality and reduce the defect rate of heat treatment. However, since the carbon steel forgings are relatively small in shape, they need to be placed in a quenching basket when they come out of the quenching furnace. It takes a long time for operators to lift and move the quenching basket. Therefore, a quenching equipment for toughened carbon steel forgings used in oil and gas equipment is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quenching device for toughened carbon steel forgings used in oil and gas equipment, which solves the technical problem of long transfer time from the quenching basket to the quenching tank.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a quenching device for toughened carbon steel forgings for oil and gas equipment, comprising a quenching tank and a quenching basket for supporting carbon steel forgings, wherein a transfer mechanism for transferring the planar position of the quenching basket is provided on one side of the quenching tank.

[0006] The transfer mechanism includes a rotating column that is rotatably mounted, a guide member on the rotating column, a transfer rod that is slidably mounted inside the guide member, and a swing assembly on the transfer rod for adjusting the vertical height of the quenching basket.

[0007] Preferably, the swing assembly includes a drive screw rotatably disposed inside the transfer rod and an adjusting rod rotatably disposed at the end of the transfer rod;

[0008] The drive screw is fitted with a drive component via a threaded connection, the transfer rod has a rectangular groove that slides with the drive component, and the drive component is rotatably connected to a drive rod.

[0009] The end of the adjusting rod is connected to the quenching basket by a positioning pin. The adjusting rod is provided with a hinge seat, which is rotatably connected to the drive rod.

[0010] Preferably, the transfer rod is further provided with a drive motor, which is fixedly connected to one end of the drive screw.

[0011] Preferably, the guide member is provided with an adjustment assembly for adjusting the lateral position of the transfer rod. The adjustment assembly consists of an electric telescopic rod disposed on the guide member and a push block disposed on the transfer rod. The telescopic end of the electric telescopic rod is fixedly connected to the push block.

[0012] Preferably, the rotation range of the adjusting rod is between 0° and 110°.

[0013] Preferably, the height of the rotating column is greater than the height of the quenching tank.

[0014] By means of the above technical solution, this utility model provides a quenching equipment for toughened carbon steel forgings used in oil and gas equipment, which has at least the following beneficial effects:

[0015] 1. This utility model can directly transfer the quenching basket below the quenching furnace to the quenching tank above the quenching tank through the transfer mechanism, and complete the quenching of carbon steel forgings through the cooperation of the swing component. The transfer speed of the entire quenching basket is relatively fast. Compared with traditional hoisting, the cooperation between the transfer mechanism and the swing component is faster, effectively controlling the quenching time of carbon steel forgings from the quenching furnace to the quenching tank, and reducing the defect rate of heat treatment.

[0016] 2. This utility model enables the quenching basket to swing inside the quenching tank through the swinging component, thereby increasing the relative contact area between the carbon steel forging and the quenching liquid, thus improving the surface heat treatment quality of the carbon steel forging. Compared with the traditional method of vertically changing the height of the quenching basket, the swinging quenching basket can also maximize the fluidity of the quenching liquid and accelerate the discharge of impurities from the inside of the quenching basket to the outside, greatly increasing the practicality of the quenching equipment and solving the drawbacks of the single height adjustment of the traditional quenching basket. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the carbon steel forging quenching equipment of this utility model;

[0019] Figure 2 This is a schematic diagram of the transfer mechanism structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the swing component structure of this utility model;

[0021] Figure 4This is a schematic diagram of the working structure of the swing assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the swing structure of the quenching basket of this utility model.

[0023] In the diagram: 1. Quenching tank; 2. Quenching basket; 3. Transfer mechanism; 4. Swing assembly; 301. Rotating column; 302. Guide component; 303. Transfer rod; 304. Electric telescopic rod; 305. Push block; 401. Drive screw; 402. Adjusting rod; 403. Drive component; 404. Drive rod; 405. Hinge seat; 406. Drive motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] Please refer to Figures 1-5 A quenching device for toughening carbon steel forgings for oil and gas equipment includes a quenching tank 1 and a quenching basket 2 for supporting carbon steel forgings. A transfer mechanism 3 for transferring the planar position of the quenching basket 2 is provided on one side of the quenching tank 1.

[0026] The transfer mechanism 3 includes a rotating column 301 that is rotatably mounted, a guide member 302 that is mounted on the rotating column 301, a transfer rod 303 that is slidably mounted inside the guide member 302, and a swing assembly 4 that is mounted on the transfer rod 303 for adjusting the vertical height of the quenching basket 2.

[0027] Furthermore, the guide member 302 is provided with an adjustment assembly for adjusting the lateral position of the transfer rod 303. The adjustment assembly consists of an electric telescopic rod 304 disposed on the guide member 302 and a push block 305 disposed on the transfer rod 303. The telescopic end of the electric telescopic rod 304 is fixedly connected to the push block 305.

[0028] Furthermore, the height of the rotating column 301 is greater than the height of the quenching tank 1; only when the rotating column 301 is higher than the quenching tank 1 can the position of the quenching basket 2 in the horizontal plane be changed, otherwise the quenching basket 2 will not be able to contact the quenching liquid.

[0029] As can be seen from the above, the change of position of the quenching basket 2 in the horizontal plane is achieved by the transfer mechanism 3. Since the rotating column 301 can rotate (the rotation control of the rotating column 301 is in the prior art and will not be described in detail in this utility model, such as the rotation angle of the rotating column 301 can be directly controlled by a servo motor or the rotating column 301 can be rotated by a horizontally set motor through a worm gear), the rotation of the rotating column 301 can cause the guide 302 to rotate, thereby driving the quenching basket 2 and the swing assembly 4 to rotate around the central axis of the rotating column 301, thereby realizing the change of position of the quenching basket 2 in the horizontal plane;

[0030] The distance between the quenching basket 2 and the rotating column 301 can be adjusted by adjusting the component, so that the quenching basket 2 can better connect with the workpiece discharge port of the previous process, that is, the discharge port of the quenching furnace. The working principle of the adjusting component is as follows: the electric telescopic rod 304 works, and the telescopic end of the electric telescopic rod 304 will extend and retract accordingly, thereby driving the push block 305 to move. Since the push block 305 is fixedly set on the transfer rod 303, the relative distance between the quenching basket 2 and the rotating column 301 can be changed by controlling the electric telescopic rod 304. Example

[0031] Please refer to Figures 2-5 This embodiment is basically the same as Embodiment 1. This embodiment is made on the basis of Embodiment 1 and has the same beneficial effects as Embodiment 1. The same parts can be referred to each other, and will not be described in detail here.

[0032] The swing assembly 4 includes a drive screw 401 rotatably disposed inside the transfer rod 303 and an adjusting rod 402 rotatably disposed at the end of the transfer rod 303;

[0033] A drive component 403 is threadedly sleeved on the drive screw 401, and a rectangular groove is provided on the transfer rod 303 to cooperate with the sliding of the drive component 403. A drive rod 404 is rotatably connected to the drive component 403.

[0034] The end of the adjusting rod 402 is connected to the quenching basket 2 by a positioning pin. The adjusting rod 402 is provided with a hinge seat 405, which is rotatably connected to the drive rod 404.

[0035] Furthermore, a drive motor 406 is also provided inside the transfer rod 303, and the drive motor 406 is fixedly installed at one end of the drive screw 401.

[0036] As can be seen from the above, after the transfer mechanism 3 transfers the quenching basket 2 carrying the carbon steel forging to the top of the quenching tank 1, the swing assembly 4 can place the quenching basket 2 into the quenching liquid in the quenching tank 1, thereby completing the heat treatment; the specific operation is as follows: the drive motor 406 starts, which in turn drives the drive screw 401 to rotate. The rotation of the drive screw 401 can drive the drive component 403 to move to one side of the rotating column 301. Since the drive component 403 is rotatably connected to the drive rod 404, and the hinge seat 405 is rotatably set with the drive rod 404, when the drive component 403 moves, it can drive the adjusting rod 402 to rotate, changing the horizontal posture of the adjusting rod 402, such as... Figure 3 As shown, since the end of the adjusting rod 402 is connected to the quenching basket 2 by a positioning pin, the quenching basket 2 is rotatably set at the end of the adjusting rod 402. When the adjusting rod 402 rotates a certain angle, the quenching basket 2 will achieve a vertical posture under the influence of its own gravity.

[0037] When the adjusting rod 402 is rotated to the vertical position, that is, the adjusting rod 402 and the transfer rod 303 are set perpendicularly, the vertical height of the quenching basket 2 is at its lowest. In order to increase the quenching efficiency of the carbon steel forgings in the quenching basket 2, the drive motor 406 works, which causes the drive screw 401 to rotate intermittently in the forward and reverse directions. That is, the adjusting rod 402 is driven to swing left and right with the upper hinge point as the rotation center axis, thereby realizing the left and right swing of the quenching basket 2 in the quenching tank 1. This intermittent swing can not only improve the relative contact efficiency between the quenching liquid and the carbon steel forgings, but also allow the oxide debris that falls into the quenching basket 2 to be quickly discharged from the quenching basket 2 to the outside of the quenching basket 2, preventing the oxide debris from sticking to the carbon steel forgings and reducing the subsequent cleaning intensity.

[0038] Furthermore, the rotation range of the adjusting rod 402 is between 0° and 110°. When the rotation angle of the adjusting rod 402 is 0°, that is, the adjusting rod 402 and the transfer rod 303 are on the same axis, the horizontal position of the quenching basket 2 can be adjusted.

[0039] When the rotation angle of the adjusting rod 402 exceeds 90°, the adjusting rod 402 can swing intermittently within a certain range, which can regularly stimulate the oscillation of the quenching liquid, thereby improving the quenching efficiency.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Since the above embodiments are substantially similar to the method embodiments, their descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quenching device for toughening carbon steel forgings used in oil and gas equipment, comprising a quenching tank (1) and a quenching basket (2) for supporting the carbon steel forgings, characterized in that: The quenching tank (1) is provided with a transfer mechanism (3) on one side for transferring the planar position of the quenching basket (2); The transfer mechanism (3) includes a rotating column (301) that is rotatably arranged, a guide (302) is provided on the rotating column (301), a transfer rod (303) is slidably arranged in the guide (302), and a swing assembly (4) for adjusting the vertical height of the quenching basket (2) is provided on the transfer rod (303). The swing assembly (4) includes a drive screw (401) rotatably disposed inside the transfer rod (303) and an adjusting rod (402) rotatably disposed at the end of the transfer rod (303); The drive screw (401) is fitted with a drive component (403) via a threaded connection. The transfer rod (303) has a rectangular groove that slides with the drive component (403). The drive component (403) is rotatably connected to a drive rod (404). The end of the adjusting rod (402) is connected to the quenching basket (2) by a positioning pin. The adjusting rod (402) is provided with a hinge seat (405), which is rotatably connected to the driving rod (404).

2. The quenching equipment for toughened carbon steel forgings used in oil and gas equipment according to claim 1, characterized in that: The transfer rod (303) is also equipped with a drive motor (406), which is fixedly connected to one end of the drive screw (401).

3. The quenching equipment for toughened carbon steel forgings used in oil and gas equipment according to claim 1, characterized in that: The guide (302) is provided with an adjustment component for adjusting the lateral position of the transfer rod (303). The adjustment component consists of an electric telescopic rod (304) disposed on the guide (302) and a push block (305) disposed on the transfer rod (303). The telescopic end of the electric telescopic rod (304) is fixedly connected to the push block (305).

4. The quenching equipment for toughened carbon steel forgings used in oil and gas equipment according to claim 1, characterized in that: The rotation range of the adjusting rod (402) is between 0° and 110°.

5. The quenching equipment for toughened carbon steel forgings used in oil and gas equipment according to claim 1, characterized in that: The height of the rotating column (301) is greater than the height of the quenching tank (1).

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