Vertical automatic connecting and detaching device for blowout prevention pipe

Abstract

The invention discloses a vertical automatic connection and disassembly device for blowout prevention pipes, which comprises a base, a rotating mechanism is mounted on the base, a plurality of blowout prevention pipes to be butted are vertically mounted on the rotating mechanism, and a lifting connection mechanism for connecting the blowout prevention pipes is arranged on one side of the rotating mechanism; the lifting connecting mechanism comprises a lifting mechanism arranged on the base, a lifting mechanism is arranged on the side, making contact with the rotating mechanism, of the lifting mechanism, power tongs used for being in butt joint with the blowout prevention pipe are installed on the top of the lifting mechanism, and the power tongs are arranged at the upper end of the lifting mechanism. Automatic connection of the blowout prevention pipes is achieved, the blowout prevention pipes are connected step by step through hydraulic control, manual participation is not needed in the whole connection process of the blowout prevention pipes, manual labor is successfully replaced by the device to achieve full automation of connection of the blowout prevention pipes, manual labor is reduced, meanwhile, personal safety is protected, and production efficiency is improved. And the labor cost in the cable blowout preventer is also greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wellhead operation device, in particular to a vertical automatic connecting and dismounting device for blowout preventer pipe. BACKGROUND

[0002] In cable logging, perforation and wireline testing, wellhead blowout preventer pipe string is used to control wellhead pressure, provide pressure transition zone and space for logging instrument string, and generally includes blowout preventer box, catcher, blowout preventer pipe and blowout preventer. The specific composition and overall height of the blowout preventer pipe string also vary according to parameters such as wellhead pressure and logging instrument length. How to quickly and safely butt joint the dozens of meters high blowout preventer pipe string and install it on the wellhead for construction operation is one of the problems faced by major oilfields in energy saving and efficiency improvement. The current traditional operation method uses large tonnage lifting equipment to complete the connection of the entire blowout preventer pipe string on the ground, and then uses the lifting equipment to lift the entire blowout preventer pipe string to complete the alignment and installation of the wellhead. However, there are problems such as slow manual butt joint of the blowout preventer pipe and high labor cost when connecting the blowout preventer pipe on the ground. At the same time, with the continuous development of industrialization, manual work will gradually be replaced by machinery. SUMMARY

[0003] In view of the above defects or deficiencies, the purpose of the present application is to provide a vertical automatic connecting and dismounting device for blowout preventer pipe.

[0004] To achieve the above purpose, the technical scheme of the present application is as follows: A vertical automatic connecting and dismounting device for blowout preventer pipe, comprising: a base, a rotating mechanism mounted on the base, a plurality of blowout preventer pipes to be butt jointed vertically mounted on the rotating mechanism, and a lifting connecting mechanism provided on one side of the rotating mechanism for connecting the blowout preventer pipes. The lifting connecting mechanism comprises: a sliding mechanism mounted on the base, a stand column mounted on the sliding mechanism, a lifting mechanism provided on the side of the stand column in contact with the rotating mechanism, a lifting mechanism mounted in the stand column, a power tongs mounted on the top of the lifting mechanism for dismounting the butt jointed blowout preventer pipes, and a horizontal telescopic mechanism mounted on the power tongs and provided above the lifting mechanism to drive the power tongs to perform dismounting action on the blowout preventer pipes grabbed by the lifting mechanism.

[0005] The rotating mechanism comprises: a blowout preventer pipe mounting seat rotatably provided on the base, and a power mechanism mounted on one side of the blowout preventer pipe mounting seat for pushing the blowout preventer pipe mounting seat to rotate; the blowout preventer pipe is clamped and mounted on the edge of the blowout preventer pipe mounting seat through a mounting slot.

[0006] The power mechanism comprises: a hydraulic cylinder, a pawl mounted on the movable end of the hydraulic cylinder, and a spring mounted between the end of the pawl and the hydraulic cylinder; the edge of the blowout preventer pipe mounting seat is provided with a ratchet structure matched with the pawl, and the mounting slot is provided on the ratchet structure.

[0007] The lifting mechanism comprises: a connecting rod hingedly mounted on one side of the column, a clamping seat hingedly mounted on the connecting rod, a plurality of synchronously openable and closable clamping pincers mounted on the clamping seat, a lifting cylinder mounted on the bottom of the clamping seat, the other end of the lifting cylinder being hingedly mounted on the bottom of the column, a clamping cylinder mounted on the clamping seat, the movable end of the clamping cylinder being connected with the clamping pincers, and the clamping cylinder driving the clamping pincers to clamp the blowout preventer.

[0008] The bottom of the column is further provided with a limiting cylinder, the movable end of the limiting cylinder being provided with a lower limiting part, and the other end of the lower limiting part being connected with the column; the lower end of the connecting rod is provided with an upper limiting part.

[0009] The lifting mechanism comprises: a lifting seat mounted in the column, a lifting cylinder mounted on the lifting seat, and the power pincer being mounted on the movable end of the lifting cylinder.

[0010] The sliding mechanism comprises: a linear track mounted on the base, the bottom of the column being mounted on a connecting seat, the connecting seat being mounted on the linear track, and a linear hydraulic cylinder being mounted on the connecting seat; the connecting seat is provided with a mounting disc, a rotating disc being mounted on the mounting disc through a pressing piece, the rotating disc being fixedly connected with the column, and a pushing hydraulic cylinder being arranged on the column for rotating fine adjustment.

[0011] The power pincer comprises: a mounting seat mounted on the lifting mechanism, a power pincer body being slidingly mounted in the mounting seat, a linear push-pull hydraulic cylinder being mounted on the mounting seat, and the movable end of the linear push-pull hydraulic cylinder being connected with the power pincer body; a horn-shaped guide seat being symmetrically mounted on the front end of the power pincer body, two gearboxes of the same structure being symmetrically mounted on the two sides of the horn-shaped guide seat, the gearboxes being clamped on the end of the blowout preventer, a power-providing hydraulic motor being connected with the gearboxes, and a thrust cylinder being mounted on the end of the gearbox for pushing the gearbox to move horizontally.

[0012] The gearbox is provided with a driving wheel connected with the hydraulic motor and a driven wheel group engaged with the driving wheel; a clamping roller is mounted on the driven wheel group, the thrust cylinder pushes the gearboxes to move towards each other, the clamping roller clamps the blowout preventer union nut, the hydraulic motor drives the two driving wheels to rotate in the same direction, drives the driven wheel group to rotate in the same direction, and unthreads the blowout preventer union nut through the clamping roller.

[0013] The base is provided with a supporting leg hydraulic cylinder for horizontal adjustment.

[0014] Compared with the prior art, the present application has the following beneficial effects: The application provides a vertical automatic connecting and dismounting device for blowout preventer pipes, which realizes the automation of the connection of the blowout preventer pipes by the rotation mechanism, the lifting mechanism, the lifting mechanism and the power tongs, and connects the blowout preventer pipes gradually through hydraulic control, and the whole process of the connection of the blowout preventer pipes does not need manual participation, the device successfully replaces the manual labor to realize the complete automation of the connection of the blowout preventer pipes, reduces the manual labor, protects the safety of the person, does not need manual participation in the process of using the vertical automatic connecting and dismounting device for blowout preventer pipes, reduces the safety of the person in the manual labor, and greatly reduces the labor cost in the cable blowout preventer device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the vertical automatic connecting and dismounting device for blowout preventer pipes. Figure 2 It is a side view of the vertical automatic connecting and dismounting device for blowout preventer pipes. Figure 3 It is a top view of the vertical automatic connecting and dismounting device for blowout preventer pipes. Figure 4 It is a schematic view of the rotation mechanism. Figure 5 It is a schematic view of the lifting mechanism. Figure 6 It is a schematic view of the lifting mechanism. Figure 7 It is a schematic view of the sliding mechanism. Figure 8 It is a schematic view of the power tongs. Figure 9 It is a schematic view of the internal structure of the gear box Figure 1 . Figure 10 It is a schematic view of the internal structure of the gear box Figure 2 . Figure 11 It is a schematic view of the internal structure of the gear box Figure 3 . Figure 12 It is a schematic view of the internal structure of the gear box Figure 4 .

[0017] In the diagram, 1—base, 1.1—linear track, 1.2—support leg cylinder, 2—rotation mechanism, 2.1—blowout preventer mounting base, 2.2—mounting groove, 2.3—pawl, 2.4—spring, 2.5—cylinder, 3—lifting mechanism, 3.1—clamping clamp, 3.2—clamping cylinder, 3.3—clamping seat, 3.4—connecting rod, 3.5—upper limit position, 3.6—lower limit position, 3.7—lifting cylinder, 3.8—limit cylinder, 4—lifting mechanism, 4.1—lifting seat, 4.2—lifting... 5—Power clamp; 5.1—Power clamp body; 5.2—Bell-shaped guide seat; 5.3—Thrust cylinder; 5.4—Gearbox; 5.5—Hydraulic motor; 5.6—Mounting seat; 5.7—Linear push-pull hydraulic cylinder; 6—Column; 6.1—Connecting seat; 6.2—Linear hydraulic cylinder; 6.3—Mounting plate; 6.4—Rotating plate; 6.5—Pressure piece; 6.6—Push hydraulic cylinder; 7—Blowout preventer; 5.4.1—Drive wheel; 5.4.2—Driven wheel assembly; 5.4.3—Clamping roller. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the protection scope of the present invention.

[0020] like Figures 1-3 As shown, the present invention provides a vertical automatic connection and disassembly device for blowout preventers, comprising: a base 1, a rotating mechanism 2 mounted on the base 1, a plurality of blowout preventers 7 to be connected being vertically mounted on the rotating mechanism 2, and a lifting connection mechanism for connecting the blowout preventers provided on one side of the rotating mechanism 2. The lifting connection mechanism includes: a sliding mechanism mounted on the base 1, a column 6 mounted on the sliding mechanism, a lifting mechanism 3 provided on the side of the column 6 that contacts the rotating mechanism 2, a lifting mechanism 4 installed inside the column 6, a power clamp 5 mounted on the top of the lifting mechanism 4 for disassembling and assembling the blowout preventer 7, and a horizontal telescopic mechanism mounted on the power clamp 5 to drive the power clamp 5 to be positioned above the lifting mechanism 3, thereby performing disassembly and assembly operations on the blowout preventer 7 gripped by the lifting mechanism 3.

[0021] The base 1 is the mounting base for all components and the hoisting platform for the entire equipment. It also serves as a counterweight to facilitate the detachment of the blowout preventer sealing surface during disassembly. The base 1 is equipped with outrigger cylinders 1.2 for horizontal adjustment to ensure the horizontal state of the entire device. The outrigger cylinders 1.2 are located at the four corners of the base 1, and the height of each corner outrigger cylinder 1.2 is adjusted hydraulically.

[0022] likeFigure 4 As shown, in the present application, the rotating mechanism 2 comprises: a blowout preventer mounting seat 2.1 rotatably arranged on the base 1, a power mechanism for pushing the blowout preventer mounting seat 2.1 to rotate is arranged on one side of the blowout preventer mounting seat 2.1; the blowout preventer 7 is clamped and mounted on the edge of the blowout preventer mounting seat 2.1 through a mounting groove 2.2.

[0023] For example, the power mechanism comprises: a liquid cylinder 2.5, a pawl 2.3 is arranged on the movable end of the liquid cylinder 2.5, a spring 2.4 is arranged between the end of the pawl 2.3 and the liquid cylinder 2.5; a ratchet structure matched with the pawl 2.3 is arranged on the edge of the blowout preventer mounting seat 2.1, and the mounting groove 2.2 is arranged on the ratchet structure.

[0024] Specifically, the rotating mechanism 2 is composed of the blowout preventer mounting seat 2.1, the mounting groove 2.2, the pawl 2.3, the spring 2.4 and the liquid cylinder 2.5, wherein the blowout preventer mounting seat 2.1 is used for bearing and fixing the blowout preventer, the bottom plate of the mounting seat is designed as a ratchet shape. The liquid cylinder 2.5 drives the pawl 2.3 to reciprocally drive the ratchet to rotate, the spring 2.4 is used for resetting the pawl 2.3, the mounting groove 2.2 is used for clamping and limiting the blowout preventer 7, and the whole rotating mechanism realizes the transposition of the blowout preventer.

[0025] As shown, Figure 5 The lifting mechanism 3 comprises: a connecting rod 3.4 hingedly arranged on one side of the stand 6, a clamping seat 3.3 is hingedly arranged on the connecting rod 3.4, a plurality of synchronous openable and closable clamping pincers 3.1 are arranged on the clamping seat 3.3; a lifting cylinder 3.7 is arranged on the bottom of the clamping seat 3.3, and the other end of the lifting cylinder 3.7 is hingedly arranged on the bottom of the stand 6; a clamping cylinder 3.2 is arranged on the clamping seat 3.3, the movable end of the clamping cylinder 3.2 is connected with the clamping pincers 3.1, and the clamping cylinder 3.2 drives the clamping pincers 3.1 to clamp the blowout preventer 7. A limiting cylinder 3.8 is further arranged on the bottom of the stand 6, a lower limiting part 3.6 is arranged on the movable end of the limiting cylinder 3.8, and the other end of the lower limiting part 3.6 is connected with the stand 6; an upper limiting part 3.5 is arranged on the lower end of the connecting rod 3.4.

[0026] Specifically, the lifting mechanism 3 is composed of clamping pincers 3.1, clamping cylinders 3.2, clamping seats 3.3, connecting rods 3.4, upper limit stops 3.5, lower limit stops 3.6, lifting cylinders 3.7, and limit cylinders 3.8. The clamping cylinders 3.2 and the clamping pincers 3.1 are both installed on the clamping seats 3.3, and the clamping pincers 3.1 are driven by the clamping cylinders 3.2 to clamp the blowout pipe. The connecting rods 3.4 connect the clamping seats 3.3 and the stand 6 together, and the clamping seats 3.3 carry the blowout pipe to rise and fall through the lifting cylinders 3.7. The upper limit stops 3.5 limit the two extreme positions of the clamping seats 3.3 in lowering and rising, and the lower limit stops 3.6 are installed on the stand 6 to limit the position of the blowout pipe during dismounting through the action of the limit cylinders 3.8. The stand 6 is installed on the base 1, and the lifting mechanism 4 is installed in the stand 6.

[0027] As shown in Figure 6 , the lifting mechanism 4 includes a lifting seat 4.1 installed in the stand 6, a lifting cylinder 4.2 installed on the lifting seat 4.1, and the power pincers 5 installed on the movable end of the lifting seat 4.1 and driven by the lifting cylinder 4.2 to lift and lower the lifting seat 4.1.

[0028] As shown in Figure 7 , the sliding mechanism includes a linear rail 1.1 installed on the base 1, a connecting seat 6.1 installed on the bottom of the stand 6, a linear hydraulic cylinder 6.2 installed on the connecting seat 6.1, a mounting disc 6.3 installed on the connecting seat 6.1, a rotating disc 6.4 installed on the mounting disc 6.3 through a pressing piece 6.5, and a pushing hydraulic cylinder 6.6 provided on the stand 6 for fine adjustment of rotation. The horizontal position and the butt joint angle can be adjusted according to the position of the blowout pipe 7 to be installed or dismounted.

[0029] As shown in Figures 8-12As shown, the power tongs 5 include a mounting seat 5.6 mounted on the lifting mechanism 4, a power tong body 5.1 slidingly mounted in the mounting seat 5.6, a linear push-pull hydraulic cylinder 5.7 mounted on the mounting seat 5.6, and an active end of the linear push-pull hydraulic cylinder 5.7 connected with the power tong body 5.1; the front end of the power tong body 5.1 is symmetrically provided with a horn-shaped guide seat 5.2 upward and downward, both sides of the horn-shaped guide seat 5.2 are symmetrically provided with gearboxes 5.4 of the same structure, the gearboxes 5.4 are clamped with the end of the blowout preventer 7, and the gearboxes 5.4 are connected with hydraulic motors 5.5 for power supply; the end of the gearbox 5.4 is provided with a thrust cylinder 5.3 for pushing the gearbox 5.4 to move horizontally. The gearbox 5.4 is provided with a driving wheel 5.4.1 connected with the hydraulic motor 5.5, and a driven wheel set 5.4.2 engaged with the driving wheel 5.4.1; the driven wheel set 5.4.2 is provided with a clamping roller 5.4.3; the thrust cylinder 5.3 pushes the gearbox 5.4 to move towards each other, and the clamping roller 5.4.3 clamps the blowout preventer nut; the hydraulic motor 5.5 rotates the two driving wheels 5.4.1 in the same direction, drives the driven wheel set 5.4.2 to rotate in the same direction, and unthreads the blowout preventer nut on the blowout preventer 7 through the clamping roller 5.4.3.

[0030] Specifically, the mounting seat 5.6 is fixed on the lifting seat 4.1 of the lifting mechanism 4, the horn-shaped guide seat 5.2 is connected to the upper and lower surfaces of the power tong body 5.1 and is symmetrically arranged, the center line of the horn-shaped guide seat 5.2 is on a straight line for guiding the blowout preventer upward and downward, the thrust cylinder 5.3 is used to drive the gearbox 5.4 to move to clamp the blowout preventer nut, the gearbox 5.4 is located in the mounting seat 5.1 and is driven by the hydraulic motor 5.5 to rotate the driving wheel in the gearbox 5.4 to unthread the blowout preventer nut on the blowout preventer.

[0031] When working, the thrust cylinder 5.3 pushes the gearbox 5.4 to move towards each other, and the clamping roller 5.4.3 clamps the blowout preventer nut.

[0032] When threading, the driving wheel 5.4.1 rotates clockwise, the driven wheel set 5.4.2 rotates counterclockwise through gear cooperation, the clamping roller 5.4.3 of the driven wheel set 5.4.2 rubs the blowout preventer nut to rotate the blowout preventer nut clockwise, and threading is completed.

[0033] When unthreading: the principle is the same as above, the driving wheel 5.4.1 rotates counterclockwise, the driven wheel set 5.4.2 rotates clockwise, the clamping roller 5.4.3 rotates the blowout preventer nut counterclockwise, and unthreading is completed.

[0034] The linear push-pull hydraulic cylinder 5.7, the linear hydraulic cylinder 6.2 and the pushing hydraulic cylinder 6.6 are used for fine adjustment when aligning the lifting blowout preventer, increase the degree of freedom, and reduce the action of the crane.

[0035] In the present application, in order to make the whole device control more intelligent, a control system is further included, which is connected with the rotating mechanism 2, the lifting mechanism 4, the lifting mechanism 3 and the power tong 5, and the control system includes hydraulic and electric control systems for driving the automatic operation of the whole blowout preventer automatic connecting device.

[0036] The working process of the present application is as follows: The connecting step is as follows: the operating column 6 is moved forward to the vicinity of the rotating mechanism 2, the lifting cylinder 4.2 of the lifting mechanism 4 lifts the power tong 5, the horizontal position of the power tong 5 is adjusted, the clamping cylinder 3.2 of the lifting mechanism 3 is operated to clamp the blowout preventer, the lifting cylinder 3.7 of the lifting mechanism 3 is operated to lift the blowout preventer to the installation position, the lifting cylinder 4.2 of the lifting mechanism 4 is operated to lower the power tong 5 to the connecting position, the blowout preventer to be connected is hoisted to the upper side of the power tong 5 and is slowly lowered to butt the two blowout preventers, the thrust cylinder 5.3 of the power tong 5 is operated to make the clamping roller 5.4.3 clamp the by-nut of the blowout preventer, the hydraulic motor 5.5 of the power tong 5 is operated to rotate, the driving wheel 5.4.1 is rotated clockwise, the driven wheel set 5.4.2 is rotated counterclockwise through gear cooperation, the clamping roller 5.4.3 of the driven wheel set 5.4.2 rubs the by-nut to drive the by-nut to rotate clockwise, and the make-up is completed. The clamping cylinder 3.2 and the thrust cylinder 5.3 of the lifting mechanism 3 are operated to release the blowout preventer and the by-nut, the connected blowout preventer string is hoisted by the crane, the hydraulic cylinder 2.5 of the rotating mechanism 2 is operated to make the blowout preventer change position, the hydraulic cylinder 2.5 of the rotating mechanism 2 is reset, and the above steps are repeated to connect all the blowout preventers. The dismounting step is as follows: the lifting cylinder 3.7 of the lifting mechanism 3 is operated to make it to the installation position, the limiting cylinder 3.8 of the lifting mechanism 3 is operated to support the lower limiting position, the blowout preventer string is slowly lowered to the lower limiting position by the crane, the clamping cylinder 3.2 of the lifting mechanism 3 is operated to clamp the blowout preventer, the lifting cylinder 4.2 and the linear push-pull hydraulic cylinder 5.7 of the lifting mechanism 4 are operated to make the power tong 5 to the connecting position, the thrust cylinder 5.3 of the power tong 5 is operated to clamp the by-nut of the blowout preventer, the hydraulic motor 5.5 of the power tong 5 is operated to rotate, the driving wheel 5.4.1 is rotated counterclockwise, the driven wheel set 5.4.2 is rotated clockwise, the by-nut is rotated counterclockwise, the by-nut is released, the thrust cylinder 5.3 is operated to release the by-nut, the lifting cylinder 4.2 of the lifting mechanism 4 is operated to lift the power tong 5, the limiting cylinder 3.8 of the lifting mechanism 3 is operated to lower the lower limiting position, the lifting cylinder 3.7 of the lifting mechanism 3 is operated to lower the blowout preventer to the transportation position, the clamping cylinder 3.2 of the lifting mechanism 3 is operated to release the blowout preventer, the lifting cylinder 3.7 of the lifting mechanism 3 is operated to make it to the installation position, the hydraulic cylinder 2.5 of the rotating mechanism 2 is operated to make the blowout preventer change position, the hydraulic cylinder 2.5 of the rotating mechanism 2 is reset, and the above steps are repeated to connect all the blowout preventers.

[0037] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of the present invention. Therefore, any improvements or modifications that may be made by those skilled in the art to certain parts of the present invention still embody the principles of the present invention and achieve the objectives of the present invention, and all fall within the scope of protection of the present invention.

Claims

1. A vertical automatic connection and disassembly device for blowout preventers, characterized in that, include: A base (1) is provided with a rotating mechanism (2) installed on the base (1). Multiple blowout preventers (7) to be docked are vertically installed on the rotating mechanism (2). A lifting connection mechanism for connecting the blowout preventers is provided on one side of the rotating mechanism (2). The lifting connection mechanism includes: a sliding mechanism installed on the base (1), a column (6) installed on the sliding mechanism, a lifting mechanism (3) provided on the side of the column (6) that contacts the rotating mechanism (2), a lifting mechanism (4) installed inside the column (6), a power clamp (5) installed on the top of the lifting mechanism (4) for disassembling and assembling the blowout preventer (7), a horizontal telescopic mechanism installed on the power clamp (5) to drive the power clamp (5) to be placed above the lifting mechanism (3) and to disassemble and assemble the blowout preventer (7) gripped by the lifting mechanism (3).

2. The automatic vertical connection and disassembly device for blowout preventers according to claim 1, characterized in that, The rotating mechanism (2) includes: a blowout preventer mounting base (2.1) rotatable on the base (1), and a power mechanism for driving the blowout preventer mounting base (2.1) to rotate is installed on one side of the blowout preventer mounting base (2.1); the blowout preventer (7) is engaged and installed on the edge of the blowout preventer mounting base (2.1) through the mounting groove (2.2).

3. The automatic vertical connection and disassembly device for blowout preventers according to claim 2, characterized in that, The power mechanism includes: a hydraulic cylinder (2.5), a pawl (2.3) is installed on the movable end of the hydraulic cylinder (2.5), and a spring (2.4) is installed between the end of the pawl (2.3) and the hydraulic cylinder (2.5); the edge of the blowout preventer mounting base (2.1) is provided with a ratchet structure that cooperates with the pawl (2.3), and the mounting groove (2.2) is provided on the ratchet structure.

4. The automatic vertical connection and disassembly device for blowout preventers according to claim 1, characterized in that, The lifting mechanism (3) includes: a connecting rod (3.4) hinged to one side of the column (6), a clamping seat (3.3) hinged to the connecting rod (3.4), and a plurality of synchronously openable clamping pliers (3.1) mounted on the clamping seat (3.3); a lifting cylinder (3.7) mounted at the bottom of the clamping seat (3.3), and the other end of the lifting cylinder (3.7) hinged to the bottom of the column (6); a clamping cylinder (3.2) mounted on the clamping seat (3.3), the movable end of the clamping cylinder (3.2) being connected to the clamping pliers (3.1), and the clamping cylinder (3.2) driving the clamping pliers (3.1) to clamp the blowout preventer (7).

5. The automatic vertical connection and disassembly device for blowout preventers according to claim 4, characterized in that, The bottom of the column (6) is also equipped with a limit cylinder (3.8), and a lower limit (3.6) is installed on the movable end of the limit cylinder (3.8). The other end of the lower limit (3.6) is connected to the column (6); an upper limit (3.5) is installed at the lower end of the connecting rod (3.4).

6. The automatic vertical connection and disassembly device for blowout preventers according to claim 1, characterized in that, The lifting mechanism (4) includes: a lifting seat (4.1) installed in the column (6), a lifting cylinder (4.2) installed on the lifting seat (4.1), and a power clamp (5) installed on the movable end of the lifting cylinder (4.2).

7. The automatic vertical connection and disassembly device for blowout preventers according to claim 1 or 6, characterized in that, The sliding mechanism includes: a linear track (1.1) mounted on the base (1); a connecting seat (6.1) mounted on the bottom of the column (6); the connecting seat (6.1) mounted on the linear track (1.1); a linear hydraulic cylinder (6.2) mounted on the connecting seat (6.1); an mounting plate (6.3) mounted on the connecting seat (6.1); a rotating plate (6.4) mounted on the mounting plate (6.3) via a pressure member (6.5); the rotating plate (6.4) being fixedly connected to the column (6); and a push hydraulic cylinder (6.6) for fine-tuning rotation on the column (6).

8. The automatic vertical connection and disassembly device for blowout preventers according to claim 1, characterized in that, The power clamp (5) includes: a mounting base (5.6) mounted on the lifting mechanism (4), a power clamp body (5.1) slidably mounted in the mounting base (5.6), a linear push-pull hydraulic cylinder (5.7) mounted on the mounting base (5.6), and the movable end of the linear push-pull hydraulic cylinder (5.7) connected to the power clamp body (5.1); a horn-shaped guide seat (5.2) is symmetrically mounted on the front end of the power clamp body (5.1), and gearboxes (5.4) with the same structure are symmetrically mounted on both sides of the horn-shaped guide seat (5.2), the gearboxes (5.4) clamp the end of the blowout preventer (7), and a hydraulic motor (5.5) for providing power is connected to the gearboxes (5.4); a thrust cylinder (5.3) for pushing the gearboxes (5.4) to move horizontally is mounted at the end of the gearboxes (5.4).

9. The automatic vertical connection and disassembly device for blowout preventer according to claim 8, characterized in that, The gearbox (5.4) is provided with a drive wheel (5.4.1) connected to the hydraulic motor (5.5) and a driven wheel assembly (5.4.2) meshing with the drive wheel (5.4.1); a clamping roller (5.4.3) is installed on the driven wheel assembly (5.4.2); the thrust cylinder (5.3) pushes the gearbox (5.4) to move in opposite directions; the clamping roller (5.4.3) clamps the blowout preventer undone nut; the hydraulic motor (5.5) drives the two drive wheels (5.4.1) to rotate in the same direction, driving the driven wheel assembly (5.4.2) to rotate in the same direction; and the clamping roller (5.4.3) unfastens the blowout preventer (7) undone nut.

10. The automatic vertical connection and disassembly device for blowout preventers according to claim 1, characterized in that, The base (1) is provided with a support leg cylinder (1.2) for horizontal adjustment.

Images