Petroleum pipe end sealing surface drilling device and method

Abstract

The invention belongs to the technical field of drilling devices, and discloses a petroleum pipe end sealing face drilling device and method.The petroleum pipe end sealing face drilling device comprises a pressing plate and a positioning sleeve, a fixing assembly is installed on the pressing plate, the end of the pressing plate is in threaded connection with two adjusting screw rods, and the end of the pressing plate is fixedly connected with two sliding rods. According to the invention, the positioning sleeve of the positioning hole and the positioning hole are directly used as drilling references, manual measurement marking is not needed, errors of manual marking are eliminated, the adjusting screw drives the clamping plate to slide along the sliding rod, the positioning sleeve is firmly abutted against the pipe end sealing surface, the positioning hole is ensured to be completely aligned with a preset drilling position, and the defect of large hole position deviation caused by manual marking is overcome; due to the symmetrical structure of the double adjusting screw rods and the double sliding rods, the clamping force of the clamping plates on the positioning sleeve is uniform and stable, the positioning sleeve is prevented from deviating due to drilling vibration, the positioning sleeve is prevented from being tightly attached to the pipe end sealing face, the problem that the hole position circle center deviation is large due to drilling vibration is solved, and it is ensured that the drilling precision meets the use requirement of the petroleum pipe end sealing face.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of drilling device, more particularly to a kind of oil pipe end sealing surface drilling device and method. BACKGROUND

[0002] In the field of oil and gas transportation, as the core transportation carrier, the drilling quality of the sealing surface of the oil pipe end directly determines the sealing and pressure resistance performance of the pipeline connection, and the sealing surface drilling needs to ensure the hole position accuracy and hole wall smoothness.If there is deviation in drilling, it is easy to cause uneven compression of the sealing element when the pipeline is connected, leading to oil and gas leakage, and even pipe end rupture under high pressure transportation conditions, causing major safety accidents and economic losses.

[0003] Currently, the operator needs to manually measure and mark the drilling position on the sealing surface of the pipe end before operating the traditional oil pipe end sealing surface drilling device, and then drill. During drilling, the drill bit may deviate due to vibration caused by contact with metal parts, resulting in large deviation of the hole center. In view of this, we propose a kind of oil pipe end sealing surface drilling device and method. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes an oil pipe end sealing surface drilling device and method, which sets a positioning sleeve with positioning holes, which directly serve as drilling reference without the need for manual measurement and marking, eliminating the error of manual marking. The symmetrical structure of the double-adjusting screw and double slide rod makes the clamping force of the clamping plate on the positioning sleeve uniform and stable, avoiding the deviation of the positioning sleeve caused by drilling vibration. The close fit of the positioning sleeve and the pipe end sealing surface solves the problem of large deviation of the hole center caused by drilling vibration, and ensures that the drilling accuracy meets the use requirements of the oil pipe end sealing surface.

[0005] An oil pipe end sealing surface drilling device includes a pressing plate and a positioning sleeve. The pressing plate is provided with a fixing assembly. Two adjusting screws are threadedly connected to the end of the pressing plate. Two slide rods are fixedly connected to the end of the pressing plate. Two clamping plates are threadedly connected to the adjusting screws. The clamping plates are slidably connected to the slide rods. The positioning sleeve is provided with a plurality of positioning holes on the end face. By rotating the adjusting screw, the clamping plate is driven to slide along the outer wall of the slide rod. The positioning sleeve is clamped against the end face of the oil pipe by the clamping plate, and the positioning hole is fixed at the drilling position of the end face of the oil pipe.

[0006] Preferably, the pressing plate is provided with a sliding groove on both sides. The fixing assembly includes a sliding block and a chain. The sliding block is slidably connected to the inner wall of the sliding groove. The top of the sliding block is provided with a clamping groove.

[0007] Preferably, the chain both ends are rotatably connected with adjusting bolts, outer wall of the adjusting bolt is threadedly connected with a clamping rod, the clamping rod is matched with the clamping groove, by rotating the adjusting bolt, the tightness of the chain can be adjusted.

[0008] Preferably, the positioning sleeve outer wall is threadedly connected with a plurality of positioning bolts, the positioning bolt end abuts against the oil pipe outer wall, and the positioning sleeve is positioned.

[0009] Preferably, the pressing plate bottom is provided with a V-shaped pressing groove, and the pressing plate is clamped on the oil pipe outer wall through the pressing groove.

[0010] Preferably, the pressing plate end is fixedly connected with a mounting plate, the mounting plate end is rotatably connected with a bidirectional threaded rod, and the bidirectional threaded rod both ends are threadedly connected with a positioning nut.

[0011] Preferably, the bidirectional threaded rod both ends are sleeved with a connecting lug, the connecting lug end is fixedly connected with an arc-shaped limiting plate, the bidirectional threaded rod both ends are threadedly connected with a locking nut, by rotating the locking nut and the positioning nut, the connecting lug is fixed, and the limiting plate abuts against the oil pipe outer wall.

[0012] Preferably, the drilling device further comprises two brackets, the bracket top is provided with a V-shaped groove, the bracket top V-shaped groove is provided with an adjusting frame, and the adjusting frame is a V-shaped structure.

[0013] Preferably, the drilling device further comprises an operation table, the operation table bottom is fixedly connected with two supporting plates, the supporting plate bottom is fixedly connected with a bottom plate, and the bracket is fixedly installed on the operation table top.

[0014] Preferably, a method for drilling the sealing surface of the oil pipe end comprises the following steps: S1, placing the oil pipe to be drilled on the V-shaped groove of the bracket on the operation table top, adjusting the adjusting frame according to the oil pipe diameter, adapting to different pipe diameters, keeping the oil pipe horizontal and the axis stable, and avoiding the pipe body shaking; S2, then clamping the pressing plate on the oil pipe outer wall through the V-shaped pressing groove at the bottom, sliding the sliding block in the sliding groove on both sides of the pressing plate, and aligning the clamping groove on the sliding block with the appropriate position of the oil pipe in the circumferential direction; S3, clamping the clamping rod at both ends of the chain into the clamping groove, rotating the adjusting bolt to tighten the chain, and firmly fixing the pressing plate on the oil pipe through the surrounding force of the chain and the pressing groove of the pressing plate; S4, rotating the bidirectional threaded rod on the mounting plate, adjusting the distance between the connecting lugs on both sides, and making the arc-shaped limiting plate fit the oil pipe outer wall; rotating the positioning nut and the locking nut respectively, and fixing the connecting lug; S5, the positioning sleeve is attached to the oil pipe end sealing surface, the adjusting screw at the end of the pressing plate is rotated, the clamping plate is driven to slide along the slide rod, the clamping plate tightly abuts the positioning sleeve from both sides on the oil pipe end surface; the positioning bolt on the outer wall of the positioning sleeve is rotated, the end thereof abuts against the outer wall of the oil pipe, further limiting the rotation of the positioning sleeve in the circumferential direction, and ensuring that the positioning hole on the positioning sleeve is aligned with the preset drilling position.

[0015] Compared with the prior art, the application has the following beneficial effects: In the application, the positioning hole of the positioning sleeve directly serves as a drilling reference, without the need for manual measurement and marking, and the error of manual marking is eliminated; the positioning sleeve is tightly abutted on the pipe end sealing surface by adjusting the screw to drive the clamping plate to slide along the slide rod, ensuring that the positioning hole is completely aligned with the preset drilling position, and solving the defect of large deviation of manually marked hole position. The symmetrical structure of the double adjusting screws and double slide rods makes the clamping force of the clamping plate on the positioning sleeve uniform and stable, avoiding the deviation of the positioning sleeve caused by drilling vibration; the close attachment of the positioning sleeve to the pipe end sealing surface solves the problem of large deviation of the hole center caused by drilling vibration, and ensures that the drilling precision meets the use requirements of the oil pipe end sealing surface. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the mounting structure of the electric drill of the present application; Figure 3 It is a schematic diagram of the mounting structure of the adjusting frame of the present application; Figure 4 It is a schematic diagram of the mounting structure of the clamping plate of the present application; Figure 5 It is a schematic diagram of the structure of the pressing plate of the present application; Figure 6 It is a schematic diagram of the mounting structure of the adjusting bolt of the present application; Figure 7 It is a schematic diagram of the mounting structure of the limiting plate of the present application.

[0018] Label explanation: 1, operation table; 2, support plate; 3, bottom plate; 4, first guide rod; 5, first adjusting screw; 6, mounting seat; 7, switching handle; 8, first feeding rocker; 9, fixed seat; 10, second guide rod; 11, height adjusting screw; 12, connecting block; 13, mounting frame; 14, electric drill; 15, drill bit; 16, second feeding rocker; 17, bracket; 18, adjusting frame; 19, pressing plate; 20, pressing groove; 21, sliding groove; 22, sliding block; 23, clamping groove; 24, clamping rod; 25, adjusting bolt; 26, chain; 27, positioning sleeve; 28, positioning hole; 29, positioning bolt; 30, adjusting screw; 31, sliding rod; 32, clamping plate; 33, mounting plate; 34, two-way threaded rod; 35, positioning nut; 36, locking nut; 37, limiting plate; 38, connecting lug. DETAILED DESCRIPTION

[0019] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. The specific embodiments of the present application will be described in detail below in conjunction with the drawings in the specification.

[0020] As shown in Figures 3-6 A kind of petroleum pipe end sealing surface drilling device, including pressing plate 19 and positioning sleeve 27, fixed component is installed on pressing plate 19, two adjusting screws 30 are threadedly connected at the end of pressing plate 19, two sliding rods 31 are fixedly connected at the end of pressing plate 19, clamping plate 32 is threadedly connected on two adjusting screws 30, clamping plate 32 is slidably connected with corresponding sliding rod 31 respectively, multiple positioning holes 28 are formed in the end face of positioning sleeve 27, by rotating adjusting screw 30, clamping plate 32 is driven to slide along the outer wall of sliding rod 31, positioning sleeve 27 is abutted on the end face of petroleum pipe by clamping plate 32, and positioning hole 28 is fixed at the drilling position of the end face of petroleum pipe.

[0021] By the structure of adjusting screw 30, clamping plate 32 and positioning sleeve 27, manual measurement and marking drilling position are not needed, positioning hole 28 of positioning sleeve 27 directly serves as drilling reference, and the problem of large deviation of traditional manual marking hole center can be solved. Clamping plate 32 slides along sliding rod 31 to adapt to petroleum pipes of different diameters, so that positioning sleeve 27 is always abutted on pipe end sealing surface, positioning sleeve 27 is prevented from deviating due to drilling vibration, and hole position accuracy is improved.

[0022] The symmetrical design of the double adjusting screws 30 and the double sliding rods 31 makes the clamping force of the clamping plate 32 on the positioning sleeve 27 uniform, prevents the positioning sleeve 27 from tilting due to uneven force, ensures that the positioning hole 28 is perpendicular to the sealing surface of the pipe end, and adapts to the pipe end drilling requirements of petroleum pipes of different specifications.

[0023] As shown in Figure 5 both sides of the pressing plate 19 are provided with sliding grooves 21, the fixing assembly includes sliding blocks 22 and chains 26, the sliding blocks 22 are in sliding connection with the inner walls of the sliding grooves 21, and the top of each sliding block 22 is provided with a clamping groove 23.

[0024] Both ends of each chain 26 are rotationally connected with adjusting bolts 25, the outer wall of each adjusting bolt 25 is threadedly connected with a clamping rod 24, the clamping rod 24 is in clamping connection with the clamping groove 23, and the tightness of the chain 26 can be adjusted by rotating the adjusting bolt 25.

[0025] The sliding of the sliding block 22 along the sliding groove 21 can adjust the fixing position of the chain 26, adapt to the circumferential size of petroleum pipes of different diameters, and avoid that the chain 26 cannot be fixed around due to that the diameter of the petroleum pipe is too large or too small; The clamping groove 23 provides a fixing point for the clamping rod 24, ensures that the two ends of the chain 26 are stably connected, and prevents the chain 26 from falling off.

[0026] The rotation of the adjusting bolt 25 can adjust the tightness of the chain 26, which can not only ensure the fixing force of the chain 26 on the pressing plate 19, but also avoid that the outer wall of the petroleum pipe is deformed due to that the chain 26 is too tight.

[0027] As shown in Figure 4 the outer wall of the positioning sleeve 27 is threadedly connected with a plurality of positioning bolts 29, the end of each positioning bolt 29 is in abutment with the outer wall of the petroleum pipe, and the positioning sleeve 27 is positioned.

[0028] The positioning bolt 29 fixes the positioning sleeve 27 from the outer wall of the petroleum pipe for the second time, limits the circumferential rotation of the positioning sleeve 27, avoids that the positioning sleeve 27 deviates with the rotation of the drill bit 15 during drilling, and further ensures that the reference of the positioning hole 28 is unchanged; The plurality of positioning bolts 29 are uniformly distributed, so that the positioning sleeve 27 is balanced in force, and the drilling scene of the pipe end material with large viscosity or high hardness is adapted.

[0029] As shown in Figure 5 the bottom of the pressing plate 19 is provided with a V-shaped pressing groove 20, and the pressing plate 19 is clamped on the outer wall of the petroleum pipe through the pressing groove 20.

[0030] The V-shaped pressing groove 20 is in abutment with the arc surface of the outer wall of the petroleum pipe, increases the contact area between the pressing plate 19 and the petroleum pipe, and improves the fixing stability of the pressing plate 19; The V-shaped structure of the pressing groove 20 can be automatically centered, ensures that the center of the pressing plate 19 is aligned with the axis of the petroleum pipe, and avoids that the pressing plate 19 deviates to cause the positional deviation of the subsequent positioning sleeve 27.

[0031] As Figure 4 And Figure 7 As shown in the figure, the end of the pressing plate 19 is fixedly connected with the mounting plate 33, the end of the mounting plate 33 is rotatably connected with the bidirectional threaded rod 34, and the two ends of the bidirectional threaded rod 34 are threadedly connected with the positioning nuts 35.

[0032] The two ends of the bidirectional threaded rod 34 are sleeved with the connecting ears 38, the ends of the connecting ears 38 are fixedly connected with the arc-shaped limiting plates 37, the two ends of the bidirectional threaded rod 34 are threadedly connected with the locking nuts 36, and the limiting plates 37 are abutted against the outer wall of the petroleum pipe by rotating the locking nuts 36 and the positioning nuts 35 to fix the connecting ears 38.

[0033] As Figure 3 As shown in the figure, the drilling device further comprises two brackets 17, the top of each bracket 17 is provided with a V-shaped groove, and the V-shaped groove in the top of the bracket 17 is provided with an adjusting frame 18.

[0034] As Figure 1 As shown in the figure, the drilling device further comprises an operation table 1, the bottom of the operation table 1 is fixedly connected with two supporting plates 2, the bottom of each supporting plate 2 is fixedly connected with a bottom plate 3, and the bracket 17 is fixedly installed on the top of the operation table 1.

[0035] The first adjusting lead screw 5 is rotatably connected to the operation table 1, the operation table 1 is fixedly connected with two first guide rods 4, the mounting seat 6 is installed on the first adjusting lead screw 5, the switching handle 7 is installed on the mounting seat 6, the first feeding crank 8 is installed on the mounting seat 6, the fixing seat 9 is installed on the first adjusting lead screw 5, the connecting block 12 is arranged above the fixing seat 9, the two second guide rods 10 are fixedly connected to the bottom of the connecting block 12, the ends of the second guide rods 10 penetrate through the fixing seat 9 and are slidably connected with the fixing seat 9, the height adjusting lead screw 11 is threadedly connected in the connecting block 12, the bottom of the height adjusting lead screw 11 is rotatably connected with the fixing seat 9, the mounting frame 13 is fixedly connected to the bottom of the second guide rod 10, the electric drill 14 is fixedly connected to the inner wall of the mounting frame 13, the drill bit 15 is fixedly connected to the end of the electric drill 14, the second feeding crank 16 is installed on the fixing seat 9, the first feeding crank 8 and the second feeding crank 16 are used for adjusting the front and back positions of the fixing seat 9, the height adjusting lead screw 11 is used for adjusting the height position of the mounting frame 13, the fixing seat 9 is slidably connected with the second guide rod 4, and the fixing seat 9 is threadedly connected with the first adjusting lead screw 5.

[0036] Working principle: the petroleum pipe to be drilled is placed in the V-shaped groove in the top of the bracket 17 of the operation table 1, the adjusting frame 18 is adjusted according to the diameter of the petroleum pipe, different pipe diameters are adapted, the petroleum pipe is kept horizontal and the axis is stable, and the pipe body is prevented from shaking; Then the pressing plate 19 is clamped on the outer wall of the petroleum pipe through the V-shaped pressing groove 20 at the bottom, the sliding blocks 22 in the sliding grooves 21 on the two sides of the pressing plate 19 are slid, and the clamping grooves 23 on the sliding blocks 22 are aligned with the circumferential appropriate positions of the petroleum pipe. Clamping rod 24 at both ends of chain 26 is clamped into clamping slot 23, and adjusting screw 25 is turned to tighten chain 26, and through the surrounding force of chain 26, pressing slot 20 of pressing plate 19 is matched, and pressing plate 19 is firmly fixed on the oil pipe.

[0037] Two-way threaded rod 34 on mounting plate 33 is turned, the distance between both sides of connecting ear 38 is adjusted, arc-shaped limiting plate 37 is adhered to the outer wall of the oil pipe, and connecting ear 38 is fixed by respectively turning positioning nut 35 and locking nut 36.

[0038] Positioning sleeve 27 is adhered to the sealing surface of the oil pipe end, adjusting screw rod 30 at the end of pressing plate 19 is turned, and clamping plate 32 is driven to slide along slide rod 31, so that clamping plate 32 tightly presses positioning sleeve 27 on the oil pipe end surface from both sides, positioning bolt 29 on the outer wall of positioning sleeve 27 is turned, the end thereof is abutted with the outer wall of the oil pipe, positioning sleeve 27 is further limited to rotate in the circumferential direction, and it is ensured that positioning hole 28 on positioning sleeve 27 is aligned with the pre-drilled hole position.

[0039] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application, and are not used to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A drilling device for the sealing surface of an oil pipe end, comprising a pressure plate (19) and a positioning sleeve (27), characterized in that: The pressure plate (19) is equipped with a fixing component. Two adjusting screws (30) are threaded to the end of the pressure plate (19). Two sliding rods (31) are fixedly connected to the end of the pressure plate (19). Each of the two adjusting screws (30) is threaded with a clamping plate (32). The clamping plate (32) is slidably connected to the corresponding sliding rod (31). The end face of the positioning sleeve (27) is provided with multiple positioning holes (28). By rotating the adjusting screw (30), the clamping plate (32) is driven to slide along the outer wall of the sliding rod (31). The clamping plate (32) presses the positioning sleeve (27) against the end face of the oil pipe, and fixes the positioning hole (28) at the drilling position of the end face of the oil pipe.

2. The drilling device for the sealing surface of an oil pipe end according to claim 1, characterized in that: The pressure plate (19) has grooves (21) on both sides. The fixing component includes a slider (22) and a chain (26). The slider (22) is slidably connected to the inner wall of the groove (21). The top of the slider (22) has a slot (23).

3. The drilling device for the sealing surface of an oil pipe end according to claim 2, characterized in that: Both ends of the chain (26) are rotatably connected to adjusting bolts (25). The outer wall of the adjusting bolt (25) is threaded with a locking rod (24). The locking rod (24) engages with the locking groove (23). By rotating the adjusting bolt (25), the tightness of the chain (26) can be adjusted.

4. The drilling device for the sealing surface of an oil pipe end according to claim 3, characterized in that: The outer wall of the positioning sleeve (27) is threaded with multiple positioning bolts (29), the ends of which abut against the outer wall of the oil pipe to position the positioning sleeve (27).

5. The drilling device for the sealing surface of an oil pipe end according to claim 4, characterized in that: The bottom of the pressure plate (19) is provided with a V-shaped pressure groove (20), and the pressure plate (19) is clamped to the outer wall of the oil pipe through the pressure groove (20).

6. The drilling device for the sealing surface of an oil pipe end according to claim 5, characterized in that: The pressure plate (19) is fixedly connected to an installation plate (33) at its end, and the installation plate (33) is rotatably connected to a bidirectional threaded rod (34) at its end. Both ends of the bidirectional threaded rod (34) are threaded with positioning nuts (35).

7. The drilling device for the sealing surface of an oil pipe end according to claim 6, characterized in that: Both ends of the bidirectional threaded rod (34) are fitted with connecting ears (38), and the ends of the connecting ears (38) are fixedly connected with arc-shaped limiting plates (37). Both ends of the bidirectional threaded rod (34) are threadedly connected with locking nuts (36). By rotating the locking nuts (36) and the positioning nuts (35), the connecting ears (38) are fixed, so that the limiting plates (37) abut against the outer wall of the oil pipe.

8. The drilling device for the sealing surface of an oil pipe end according to claim 7, characterized in that: It also includes two brackets (17), each bracket (17) having a V-shaped groove on its top. An adjustment bracket (18) is installed in the V-shaped groove on the top of the bracket (17), and the adjustment bracket (18) has a V-shaped structure.

9. The drilling device for the sealing surface of an oil pipe end according to claim 8, characterized in that: It also includes an operating table (1), the bottom of which is fixedly connected to two support plates (2), and the bottom of each support plate (2) is fixedly connected to a base plate (3). The bracket (17) is fixedly installed on the top of the operating table (1).

10. A method for drilling holes in the sealing surface of an oil pipe end, applicable to the oil pipe end sealing surface drilling device of claim 9, characterized in that, Includes the following steps: S1. Place the oil pipe to be drilled in the V-groove of the top bracket (17) of the operating table (1), and adjust the adjusting bracket (18) according to the diameter of the oil pipe to adapt to different pipe diameters, so that the oil pipe remains horizontal and the axis is stable. S2. Then, the pressure plate (19) is clamped onto the outer wall of the oil pipe through the V-shaped pressure groove (20) at the bottom. The slider (22) in the sliding groove (21) on both sides of the pressure plate (19) is slid so that the groove (23) on the slider (22) is aligned with the appropriate position in the circumference of the oil pipe. S3. Insert the locking rods (24) at both ends of the chain (26) into the slots (23), turn the adjusting bolts (25) to tighten the chain (26), and use the surrounding force of the chain (26) to cooperate with the pressure groove (20) of the pressure plate (19) to firmly fix the pressure plate (19) on the oil pipe. S4. Rotate the bidirectional threaded rod (34) on the mounting plate (33) to adjust the distance between the connecting ears (38) on both sides so that the arc-shaped limiting plate (37) fits against the outer wall of the oil pipe; rotate the positioning nut (35) and the locking nut (36) respectively to fix the connecting ears (38); S5. Place the positioning sleeve (27) against the sealing surface of the oil pipe end, rotate the adjusting screw (30) at the end of the pressure plate (19) to drive the clamping plate (32) to slide along the slide bar (31), so that the clamping plate (32) presses the positioning sleeve (27) against the oil pipe end face from both sides; rotate the positioning bolt (29) on the outer wall of the positioning sleeve (27) so that its end abuts against the outer wall of the oil pipe, further restricting the circumferential rotation of the positioning sleeve (27) and ensuring that the positioning hole (28) on the positioning sleeve (27) is aligned with the preset drilling position.

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