Quenching device for drill bit production for petroleum drilling and production

Abstract

The utility model relates to the technical field of drill bit quenching, and discloses a quenching device for drill bit production for petroleum drilling and production, which comprises a cooling box, a U-shaped bracket is mounted at the top end of the cooling box, limiting guide rods penetrate through two sides of the top end of the U-shaped bracket, and connecting blocks are mounted at the bottom ends of the limiting guide rods. According to the automatic fixing device for the drill bit, a drill rod of the drill bit is preliminarily limited and fixed through the fixing cylinder, the drill bit is conveniently placed upwards by utilizing the structure of the fixing cylinder, and the drill rod in the middle is automatically extruded inwards by utilizing the arc-shaped structure and memory characteristics of the extrusion sheet, so that the automatic fixing effect on the drill bit is achieved, and the working efficiency is improved. The step of fixing the drill bits in the quenching operation is omitted, the operation efficiency can be improved, and due to the fact that the two ends of the extrusion piece can slide in the sliding grooves, the fixing barrel can achieve the fixing effect on the drill bits of different diameter specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bit quenching, in particular to a quenching device for producing a drill bit used in a petroleum drill. Background Art

[0002] Quenching is a heat treatment process that heats steel to above the critical temperature, keeps it warm for a certain period of time, and then cools it at a rate greater than the critical cooling rate to obtain an unbalanced structure dominated by martensite. In the process of oil extraction, drill bits are needed for drilling. In order to ensure the quality of drilling, the drill bits generally need to be quenched.

[0003] Chinese patent authorization announcement number CN218089681U discloses a quenching device for drill bit production, including a quenching box, a cylinder is fixedly installed on the top side of the quenching box, a lifting plate is fixedly welded on the output shaft of the cylinder, two slide grooves are opened on the front side of the quenching box, and the same sliding plate is slidably arranged in the two slide grooves. The operation is simple, and batches of drill bits can be quenched at the same time. The quenching is convenient for cooling the drill bits after quenching, which reduces the labor intensity of workers. The use effect is good and worthy of promotion. The above-mentioned prior art scheme has the following shortcomings: the device mainly realizes the mutual approach of the clamping plates by rotating the threaded rod, thereby realizing the clamping effect of the drill bit. However, since the rotation of the threaded rod in the structure needs to be performed manually, and since the drill bit needs to be heated downward, it is necessary to hold the drill bit at a certain height by hand in advance during the clamping process, and then clamp it. Its overall operating efficiency is average, so there is a certain room for improvement. Utility Model Content

[0004] The utility model aims to provide a quenching device for oil drill bit production, so as to solve the problem that the existing quenching device for oil drill bit production is not easy to quickly clamp and fix the drill bit proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A quenching device for producing a drill bit for an oil drill, comprising a cooling box, a U-shaped bracket is installed at the top of the cooling box, and both sides of the top of the U-shaped bracket are penetrated by limiting guide rods, the bottom ends of the limiting guide rods are installed with connecting blocks, and a movable sleeve is connected between the two connecting blocks, the top of the movable sleeve is penetrated by a fixed cylinder, and the inside of the fixed cylinder is evenly provided with a clamping mechanism to clamp the drill rod part of the drill bit, the outside of the limiting guide rod is sleeved with a movable plate, and the top of the movable plate is close to the U-shaped bracket. The top of the electric telescopic rod is connected to the top of the U-shaped bracket, the top of the U-shaped bracket above the fixed cylinder is correspondingly installed with an insulating cylinder, and the inside of the insulating cylinder is provided with an electromagnetic heating tube, the top of the cooling box below the movable sleeve is provided with a cooling groove, and the inside of the cooling groove is filled with coolant, the tops of both sides of the cooling groove are provided with closing mechanisms, and a refrigerator is provided on one side of the cooling box to cool the coolant.

[0006] Preferably, pressure rods are installed on both sides of the bottom end of the movable sleeve, and a docking groove is correspondingly opened at the bottom end of the cooling groove below the pressure rod, so that the pressure rod is used to facilitate opening and closing of the closing mechanism.

[0007] Preferably, the closing mechanism includes a flap installed on the top of the inner wall of the cooling groove, and one side of the flap forms a flip structure with the cooling groove through a connecting shaft, one side of the bottom end of the flap is connected to the inner wall of the cooling groove with two symmetrically arranged grooves, and two torsion springs are provided on the side of the flap away from the grooves.

[0008] Preferably, there are two groups, and each group has two grooves. The positions of the grooves are on the extension line of the limiting guide rod, and the cross-sectional size of the two grooves is matched with the cross-sectional size of the limiting guide rod.

[0009] Preferably, the position of the groove is staggered with the position of the pressure rod, and the bottom ends of the two pressure rods correspond to the top ends of the two flip covers respectively.

[0010] Preferably, the clamping mechanism includes a slide groove opened on the inner wall of the fixed cylinder, and two slide grooves are provided, and the slide grooves are distributed on the movable sleeve at intervals in the upper and lower parts, and sliders are installed inside the two slide grooves, and the outsides of the two sliders are connected to extrusion plates.

[0011] Preferably, the slider and the slide groove form an up-and-down sliding structure, and the extrusion sheet is an arc-shaped memory metal sheet.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The fixing tube is used to facilitate the preliminary positioning and fixing of the drill rod of the drill bit, and the structure of the fixing tube is used to facilitate the upward placement of the drill bit, and the arc-shaped structure and memory characteristics of the extrusion sheet are used to automatically squeeze the middle drill rod part inward, thereby achieving an automatic fixing effect on the drill bit, reducing the steps of fixing the drill bit during the quenching operation, which is beneficial to improving the operating efficiency. In addition, since the two ends of the extrusion sheet can slide inside the slide groove, the fixing tube can achieve the fixing effect of drill bits of different diameters, thereby improving their service life;

[0014] (2) The elastic action of the torsion spring is used to generate an upward force on the flap, so that the two flaps close the top of the cooling groove to reduce the diffusion of cold air outward. The action of the pressure rod is used to automatically open the cooling groove when the movable sleeve moves downward, so that the drill bit can be deeply immersed in the coolant for quenching and cooling. The elastic action of the torsion spring is used to automatically reset the flap to maximize the sealing of the cooling environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the movable sleeve of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixed cylinder section of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the cooling box of the present utility model.

[0020] Explanation of the reference numerals in the figure: 1. Cooling box; 2. Cooling groove; 3. Closing mechanism; 301. Flip cover; 302. Torsion spring; 303. Groove; 4. Refrigerator; 5. U-shaped bracket; 6. Electric telescopic rod; 7. Movable plate; 8. Limiting guide rod; 9. Connecting block; 10. Movable sleeve; 11. Fixed cylinder; 12. Insulating cylinder; 13. Electromagnetic heating tube; 14. Clamping mechanism; 1401. Slide groove; 1402. Sliding block; 1403. Extrusion sheet; 15. Press rod; 16. Docking groove. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 The utility model provides an embodiment: a quenching device for producing a drill bit for an oil drill, comprising a cooling box 1, a U-shaped bracket 5 is installed at the top of the cooling box 1, and both sides of the top of the U-shaped bracket 5 are penetrated by a limiting guide rod 8, and the bottom end of the limiting guide rod 8 is installed with a connecting block 9, and a movable sleeve 10 is connected between the two connecting blocks 9;

[0023] A pressure rod 15 is installed on both sides of the bottom of the movable sleeve 10, and a docking groove 16 is correspondingly opened at the bottom of the cooling groove 2 below the pressure rod 15, and the pressure rod 15 is used to facilitate the opening and closing of the closing mechanism 3;

[0024] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, when in use, the pressure rod 15 is used to make the movable sleeve 10 descend, so that the pressure rod 15 generates a downward pushing force on the flip cover 301 to separate and open the two flip covers 301, thereby facilitating the transfer of the drill bit to the interior of the cooling tank 2 for quenching and cooling;

[0025] A fixing tube 11 is passed through the top of the movable sleeve 10, and a clamping mechanism 14 is evenly arranged inside the fixing tube 11 to clamp the drill rod part of the drill bit;

[0026] The clamping mechanism 14 includes a slide groove 1401 formed on the inner wall of the fixed cylinder 11, and two slide grooves 1401 are provided. The slide grooves 1401 are spaced apart from each other on the movable sleeve 10. Slide blocks 1402 are installed inside the two slide grooves 1401, and the outsides of the two slide blocks 1402 are connected to extrusion sheets 1403.

[0027] The slider 1402 and the slide groove 1401 form an up-and-down sliding structure, and the extrusion sheet 1403 is an arc-shaped memory metal sheet;

[0028] Specifically, Figure 1 , Figure 2 and Figure 3As shown, when in use, the special structure and characteristics of the squeezing sheet 1403 are utilized to enable it to produce a squeezing effect inward, thereby combining with the fixing tube 11 to achieve an automatic clamping effect on the drill bit and the drill rod part, and the clamping operation only requires the drill rod to be fully inserted into the interior of the fixing tube 11, and the operation is simple and efficient;

[0029] The outside of the limiting guide rod 8 is sleeved with a movable plate 7, and the top of the movable plate 7 is installed on one side close to the U-shaped bracket 5, and the top of the electric telescopic rod 6 is connected to the top of the inside of the U-shaped bracket 5. The top of the U-shaped bracket 5 above the fixed cylinder 11 is correspondingly installed with an insulating cylinder 12, and the inside of the insulating cylinder 12 is provided with an electromagnetic heating tube 13. The top of the cooling box 1 below the movable sleeve 10 is provided with a cooling groove 2, and the inside of the cooling groove 2 is filled with coolant. Closing mechanisms 3 are provided at the tops of both sides of the inside of the cooling groove 2, and a refrigerator 4 is provided on one side of the cooling box 1 to facilitate cooling of the coolant.

[0030] The closing mechanism 3 includes a flip cover 301 installed on the top of the inner wall of the cooling groove 2, and one side of the flip cover 301 forms a flip structure with the cooling groove 2 through a connecting shaft, one side of the bottom end of the flip cover 301 is connected to the inner wall of the cooling groove 2 with two symmetrically arranged grooves 303, and one side of the flip cover 301 away from the grooves 303 is provided with two torsion springs 302;

[0031] There are two groups, and each group has two grooves. The position of the groove 303 is on the extension line of the limiting guide rod 8, and the cross-sectional size of the two grooves 303 matches the cross-sectional size of the limiting guide rod 8.

[0032] The position of the groove 303 is staggered with the position of the pressure rod 15, and the bottom ends of the two pressure rods 15 correspond to the top ends of the two flip covers 301 respectively;

[0033] Specifically, Figure 1 , Figure 4 As shown, when in use, the elastic effect of the torsion spring 302 is utilized to provide a certain supporting force to the bottom end of the flip cover 301, thereby facilitating the two flip covers 301 to remain closed and facilitating the flipability of the flip cover 301.

[0034] Working principle: When the utility model is used, the drill bit and the drill rod are first inserted into the interior of the fixed tube 11, so that the drill rod and the extrusion sheet 1403 are abutted against each other, so that the slider 1402 slides along the slide groove 1401 to a certain extent. Since the extrusion sheet 1403 has a memory reset function, the extrusion sheet 1403 exerts an inward extrusion effect on the drill rod, and the cooperation of multiple extrusion sheets 1403 is used to achieve the fixing effect of the drill bit;

[0035] Secondly, the electric telescopic rod 6 is started to shorten, so that the movable plate 7 pulls the limit guide rod 8 to rise, and then the movable sleeve 10 drives the fixed cylinder 11 to rise synchronously, so that the drill bit penetrates into the interior of the electromagnetic heating tube 13, and the electromagnetic heating tube 13 is started to heat the drill bit. When it is heated to a certain degree, the electric telescopic rod 6 is started to shorten to reset the drill bit. After standing for a period of time, the electric telescopic rod 6 is started again to extend, so that the movable sleeve 10 drives the pressure rod 15 to descend, so that the pressure rod 15 contacts and presses the flip cover 301, so that the flip cover 301 produces a flipping effect, and then the torsion spring 302 is compressed, so that the drill bit enters the interior of the coolant to achieve quenching cooling of the drill bit;

[0036] Finally, when the drill bit is completely moved to the coolant, the elastic action of the torsion spring 302 causes the flap 301 to reset, so that the two flaps 301 close the top of the cooling groove 2 to reduce the diffusion of cold air outward, and at the same time start the refrigerator 4 to allow the refrigerator 4 to continuously cool the coolant.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A quenching device for producing a drill bit for an oil drill, comprising a cooling box (1), characterized in that: A U-shaped bracket (5) is installed at the top of the cooling box (1), and both sides of the top of the U-shaped bracket (5) are penetrated by limiting guide rods (8), the bottom of the limiting guide rod (8) is installed with a connecting block (9), and a movable sleeve (10) is connected between the two connecting blocks (9), the top of the movable sleeve (10) is penetrated by a fixing cylinder (11), and the inside of the fixing cylinder (11) is evenly provided with a clamping mechanism (14) to facilitate clamping the drill rod part of the drill bit, the outside of the limiting guide rod (8) is sleeved with a movable plate (7), and the side of the top of the movable plate (7) close to the U-shaped bracket (5) is equipped with an electric A telescopic rod (6), the top end of the electric telescopic rod (6) is connected to the top end of the U-shaped bracket (5), the top end of the U-shaped bracket (5) above the fixed tube (11) is correspondingly installed with an insulating tube (12), and the inside of the insulating tube (12) is provided with an electromagnetic heating tube (13), the top end of the cooling box (1) below the movable sleeve (10) is provided with a cooling groove (2), and the inside of the cooling groove (2) is filled with cooling liquid, the top ends of both sides of the cooling groove (2) are provided with closing mechanisms (3), and a refrigerator (4) is provided on one side of the cooling box (1) to facilitate cooling of the cooling liquid.

2. A quenching device for producing a drill bit for a petroleum drill according to claim 1, characterized in that: Pressing rods (15) are installed on both sides of the bottom end of the movable sleeve (10), and a docking groove (16) is correspondingly provided at the bottom end of the cooling groove (2) below the pressing rod (15), so that the closing mechanism (3) can be opened and closed by using the pressing rod (15).

3. A quenching device for producing a drill bit for a petroleum drill according to claim 1, characterized in that: The closing mechanism (3) comprises a flap (301) mounted on the top of the inner wall of the cooling groove (2), and one side of the flap (301) forms a flip structure with the cooling groove (2) via a connecting shaft, one side of the bottom end of the flap (301) is connected to the inner wall of the cooling groove (2) with two symmetrically arranged grooves (303), and two torsion springs (302) are provided on the side of the flap (301) away from the grooves (303).

4. A quenching device for producing a drill bit for a petroleum drill according to claim 3, characterized in that: There are two groups, and each group has two grooves. The position of the groove (303) is on the extension line of the limiting guide rod (8), and the cross-sectional size formed by the two grooves (303) is compatible with the cross-sectional size of the limiting guide rod (8).

5. The quenching device for producing a drill bit for a petroleum drill according to claim 3, characterized in that: The position of the groove (303) is staggered with the position of the pressure rod (15), and the bottom ends of the two pressure rods (15) correspond to the top ends of the two flip covers (301) respectively.

6. A quenching device for producing a drill bit for a petroleum drill according to claim 1, characterized in that: The clamping mechanism (14) includes a slide groove (1401) opened on the inner wall of the fixed cylinder (11), and two slide grooves (1401) are provided. At the same time, the slide grooves (1401) are distributed on the movable sleeve (10) at intervals in the upper and lower parts. Slide blocks (1402) are installed inside the two slide grooves (1401), and the outsides of the two slide blocks (1402) are connected to extrusion plates (1403).

7. A quenching device for producing a drill bit for a petroleum drill according to claim 6, characterized in that: The slider (1402) and the slide groove (1401) form an up-and-down sliding structure, and the extrusion sheet (1403) is an arc-shaped memory metal sheet.

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