A belt pressure operation machine capable of switching between Additive and American installation modes and a switching method

Abstract

The present application relates to a pressure-operating machine and a conversion method that can be converted between the Additive and American installation modes, belonging to the technical field of pressure-operating machines, including a pressure-operating machine, the pressure-operating machine includes a bracket assembly, a lifting part, a slip device, a well control part, and a hydraulic control part. The slip device includes a fixed slip group and a movable slip group. The fixed slip group includes a movable anti-top slip, a fixed anti-top slip, a fixed load-bearing slip and an active turntable. The active turntable includes a turntable and an upper seat ring, and the movable slip group is connected to the turntable; the well control part includes an annular blowout preventer and a working blowout preventer, and the annular blowout preventer is connected to the fixed load-bearing slip, including a righting column, which is used to be installed between the movable anti-top slip and the lower load-bearing plate, and the fixed anti-top slip is arranged below the lower load-bearing plate to convert from a pressure-operating machine to an American pressure-operating machine. The present application has the effect of reducing the investment cost of oil production equipment.

Description

Technical Field

[0001] The present application relates to the technical field of belt pressure working machines, and in particular to a belt pressure working machine capable of switching between Canadian and American installation modes and a conversion method. Background Art

[0002] A pressure-operated machine is a device that can effectively implement drilling and well repair operations without the need for well killing or blowout operations. During the operation, it can avoid the pollution and damage of the production layer by the killing fluid, so that the mining potential and output can be protected to the maximum extent. Therefore, the pressure-operated machine is widely used in underbalanced drilling, small hole drilling, side drilling, pressure-operated tubing, pressure-operated casing, pressure-operated liner, pressure-operated cement plugs, pressure-operated bridge plugs, pressure-operated sand plugs, acidizing, fracturing, salvage, grinding and milling, cement squeezing or scrapped well operations, etc.

[0003] The plus-type pressure-operating machine is a device used for pressure-operating in oil and gas wells. It is mainly used for well repair, completion, testing and other operations under pressure at the wellhead. Its core feature is that it controls the pressure in the well through a sealing device without killing the well or releasing the blowout, ensuring the safety of the operation. The American-style pressure-operating machine is a device used for pressure-operating in oil and gas wells. It is derived from American technology and is widely used in oil and gas fields around the world. Its feature is that it can safely and efficiently perform well repair, completion, testing and other operations through sealing and pressure control technology under pressure at the wellhead.

[0004] In daily production, during conventional pressure completion construction, the added pressure operation machine is selected. The added installation structure is compact, the equipment hoisting modules are few, the disassembly and assembly speed is fast, and the construction efficiency is high. If the American pressure operation machine is selected during the drilling template construction of some ultra-high pressure wells, long horizontal sections, etc.

[0005] However, when oil wells are being exploited, both Canadian-type pressure-operating machines and American-type pressure-operating machines need to be used to adapt to different types of oil wells, resulting in high initial investment costs. Summary of the invention

[0006] In order to reduce the investment cost of oil production equipment, the present application provides a pressure-operating machine capable of switching between the Canadian and American installation modes and a conversion method.

[0007] In the first aspect, the present application provides a pressure working machine capable of switching between the Additive and American installation modes, which adopts the following technical solution: A pressure-operating machine capable of switching between a C-type and an American-type installation mode, comprising a C-type pressure-operating machine, the C-type pressure-operating machine comprising a bracket assembly, a lifting part, a slip device, a well control part, and a hydraulic control part, the slip device comprising a fixed slip group and a movable slip group, the fixed slip group comprising a movable anti-top slip, a fixed anti-top slip, a fixed load-bearing slip and an active turntable, the active turntable comprising a turntable and an upper seat ring, the movable slip group being connected to the turntable; The well control part includes an annular blowout preventer and a working blowout preventer, wherein the annular blowout preventer is connected to the fixed bearing slips, and the working blowout preventer is arranged on the lower bearing plate of the support assembly and connected to the annular blowout preventer; The lifting part includes four lifting cylinders, and the cylinder bodies of the lifting cylinders are arranged on the upper load-bearing plate of the bracket assembly and connected to the turntable; The hydraulic control part includes a plurality of hydraulic pipelines, connecting the hydraulic power source with other parts of the pressure working machine; a load-bearing column is arranged between the upper load-bearing plate and the lower load-bearing plate of the support assembly, and the traveling slip group and the well control part are both located between the load-bearing columns; It also includes a righting column, which is used to be installed between the movable anti-top slip and the lower bearing plate. The fixed anti-top slip is arranged below the lower bearing plate to convert the Canadian type belt pressure working machine into an American type belt pressure working machine.

[0008] Optionally, the righting column includes a fixed duct, a movable duct and a fixed plate, the movable duct is slidably sleeved in the fixed duct, two fixed plates are provided and are respectively fixed on the ends of the movable duct and the fixed duct, and are fixedly connected to the movable anti-top slip and the lower load-bearing plate by bolts.

[0009] Optionally, the fixed plate on the movable conduit is rectangular, and the fixed plate on the fixed conduit is circular.

[0010] Optionally, the straightening column also includes a straightening device, which includes a mounting ring, a mounting rod and a fixing ring, the mounting ring is fixedly sleeved on the fixing guide tube, the fixing ring is fixedly sleeved on the load-bearing column, and both ends of the mounting rod are respectively fixedly arranged on the mounting ring and the fixing ring.

[0011] Optionally, the mounting rod is a retractable structure.

[0012] Optionally, a raised flange and a five-way valve are provided below the lower bearing plate. The five-way valve is provided on the lower bearing plate, and the five-way valve is used for connecting and fixing the anti-top slip to the raised flange.

[0013] Optionally, it also includes a fixed slip maintenance platform and a raised working window operating platform, wherein the fixed slip maintenance platform is used for inspecting and maintaining the fixed anti-top slips and the fixed load-bearing slips.

[0014] Optionally, a telescopic ladder is further included, one side of the telescopic ladder is fixedly arranged on the upper operating platform, and the other side of the telescopic ladder is fixedly arranged on the lower operating platform, and the telescopic ladder is telescoped to the fixed slip maintenance platform.

[0015] Optionally, it also includes an associated cable pipe column, one end of which is fixedly arranged below the fixed slip maintenance platform, and the other end of which is fixed to the raised working window operating platform and is used to increase the height of the American-type belt pressure working machine.

[0016] In the second aspect, the present application provides a method for converting a belt pressure working machine capable of converting between the Canadian and American installation modes, and adopts the following technical solutions: Optionally, a conversion method for a belt pressure working machine capable of switching between the Additive and American installation modes, for converting a belt pressure working machine capable of switching between the Additive and American installation modes, further comprises; S1: When converting the A-type belt pressure machine to the American-type belt pressure machine, first separate the floating anti-top slips from the fixed anti-top slips. At this time, use a crane to hoist the fixed anti-top slips and the components below, and then use another hoist to hoist the righting column. Hoist the righting column between the floating anti-top slips and the lower bearing plate; S2: Then fix the floating guide tube on the floating anti-top slip through the fixing plate, and then install the lifting flange and the five-way valve on the lower bearing plate; S3: Installation of the straightening device: first fix the installation ring on the fixed guide tube, then sleeve the fixed ring on the load-bearing column to complete the installation of the straightening device; S4: stretch the telescopic ladder again so that the lower part of the telescopic ladder is installed on the fixed slip maintenance platform; S5: Then install the fixed slip maintenance platform and the raised working window operating platform to complete the conversion of the pressure-added working machine.

[0017] In summary, the present application includes at least one of the following beneficial technical effects: When converting the pumping machine, first separate the floating anti-top slip from the fixed anti-top slip. At this time, use a crane or other lifting equipment to lift the fixed anti-top slip and the components below. Then use another lifting equipment to lift the righting column. Lift the righting column between the floating anti-top slip and the lower bearing plate. Then fix the floating guide tube on the floating anti-top slip through the fixed plate. Then install the lifting flange and the five-way valve on the lower bearing plate. When installing the righting device, first fix the mounting ring on the fixed guide tube. Then sleeve the fixing ring on the bearing column. After that, complete the installation of the righting device. Then stretch the telescopic ladder so that the lower part of the telescopic ladder is installed on the fixed slip maintenance platform. Then install the fixed slip maintenance platform and the lifting work window operating platform. The conversion of the pumping machine with pressure is completed, thereby reducing the initial investment in oil production equipment. If the drilling formwork can be quickly transformed into the American equipment installation mode during the construction of some ultra-high pressure wells, long horizontal sections, etc., the American equipment uses a full-stroke straightening guide tube to meet the construction conditions of ultra-high pressure and other working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a pressure-adding type belt pressure-adding working machine in a belt pressure-adding working machine capable of switching between the pressure-adding type and the American type installation mode in an embodiment of the present application; Figure 2 It is a side view of a pressure-adding type ... Figure 3 It is a structural schematic diagram of a lifting mechanism in a pressure-type belt-pressing working machine in a pressure-type belt-pressing working machine that can switch between the pressure-type and American-type installation modes in an embodiment of the present application; Figure 4 It is a structural schematic diagram of an American-style belt pressure working machine in a belt pressure working machine that can switch between the Additive and American installation modes in an embodiment of the present application; Figure 5 It is a side view of an American-style belt pressure working machine in a belt pressure working machine that can switch between the Canadian-style and American-style installation modes in an embodiment of the present application; Figure 6 It is a plan view of a righting column in an American-style belt pressure working machine in a belt pressure working machine that can switch between the Canadian-style and American-style installation modes in an embodiment of the present application; Figure 7 It is a three-dimensional diagram of a righting column in an American-style belt pressure working machine in a belt pressure working machine that can switch between the Canadian and American installation modes in an embodiment of the present application; Figure 8 It is a structural schematic diagram of a straightening column and a straightening device in an American-style belt pressure working machine in a belt pressure working machine that can switch between the Additive and American installation modes in an embodiment of the present application.

[0019] Explanation of the reference numerals: 1. Fixed slip group; 11. Moving anti-top slip; 12. Fixed anti-top slip; 13. Fixed load-bearing slip; 14. Active turntable; 141. Turntable; 142. Upper seat ring; 2. Moving slip group; 3. Annular blowout preventer; 4. Working blowout preventer; 5. Upper load-bearing plate; 6. Lower load-bearing plate; 7. Lifting cylinder; 8. Righting column; 81. Fixed guide tube; 82. Moving guide tube; 83. Fixed plate; 9. Righting device; 91. Mounting ring; 92. Mounting rod; 93. Fixed ring; 10. Lifting flange; 15. Five-way valve; 16. Fixed slip maintenance platform; 17. Lifting working window operating platform; 18. Telescopic ladder; 19. Associated cable string; 20. Load-bearing column. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1 -Attached Figure 8This application is described in further detail.

[0021] The present application embodiment discloses a belt pressure working machine that can switch between the Canadian and American installation modes. Figure 1 , Figure 2 and Figure 3 The pressure-operating machine capable of switching between the C-type and American-type installation modes includes a C-type pressure-operating machine, which includes a bracket assembly, a lifting part, a slip device, a well control part, and a hydraulic control part. The slip device includes a fixed slip group 1 and a movable slip group 2. The fixed slip group 1 includes a movable anti-top slip 11, a fixed anti-top slip 12, a fixed load-bearing slip 13 and an active turntable 14. The active turntable 14 includes a turntable 141 and an upper seat ring 142. The movable slip group 2 is connected to the turntable 141. Reference Figure 1 , Figure 2 and Figure 3 The well control part includes an annular blowout preventer 3 and a working blowout preventer 4. The annular blowout preventer 3 is connected to the fixed bearing slip 13. The working blowout preventer 4 is arranged on the lower bearing plate 6 of the support assembly and is connected to the annular blowout preventer 3. Reference Figure 1 , Figure 2 and Figure 3 The lifting part includes four lifting cylinders 7, and the cylinder bodies of the lifting cylinders 7 are arranged on the upper bearing plate 5 of the bracket assembly and connected to the turntable 141; Reference Figure 1 , Figure 2 and Figure 3 The hydraulic control part includes a plurality of hydraulic pipelines, which connect the hydraulic power source with other parts of the pressure working machine; a load-bearing column 20 is arranged between the upper load-bearing plate 5 and the lower load-bearing plate 6 of the bracket assembly, and the traveling slip group 2 and the well control part are both located between the load-bearing columns 20; Reference Figure 2 and Figure 4 , and also includes a righting column 8, which is used to be installed between the movable anti-top slip 11 and the lower bearing plate 6. The fixed anti-top slip 12 is arranged below the lower bearing plate 6 to convert the Canadian type belt pressure working machine into an American type belt pressure working machine.

[0022] When the pressure-type operation machine is converted, the movable anti-top slip 11 is first separated from the fixed anti-top slip 12. At this time, a crane or other lifting equipment is used to lift the fixed anti-top slip 12 and the components below, and then another lifting equipment is used to lift the righting column 8, and the righting column 8 is lifted between the movable anti-top slip 11 and the lower bearing plate 6, and then the movable guide tube 82 is fixed to the movable anti-top slip 11 through the fixed plate 83, and then the lifting flange 10 and the five-way valve 15 are installed on the lower bearing plate 6; the righting device 9 is installed, first the mounting ring 91 is fixed to the fixed guide tube 81, and then the fixing ring 93 is sleeved on the bearing column 20, and the installation of the righting device 9 is completed, and then the telescopic ladder 18 is stretched so that the lower part of the telescopic ladder 18 is installed on the fixed slip maintenance platform 16, and then the fixed slip maintenance platform 16 and the lifting working window operating platform 17 are installed, and the conversion of the pressure-type operation machine is completed, thereby reducing the premise investment of the oil production equipment.

[0023] Reference Figure 5 and Figure 6 In the implementation of the present application, the righting column 8 includes a fixed conduit 81, a movable conduit 82 and a fixed plate 83. The movable conduit 82 is slidably sleeved in the fixed conduit 81. Two fixed plates 83 are provided and are respectively fixedly arranged at the ends of the movable conduit 82 and the fixed conduit 81, and are fixedly connected to the movable anti-top slip 11 and the lower bearing plate 6 by bolts; the movable conduit 82 is slidably arranged in the fixed conduit 81 and moves with the lift to facilitate the normal oil production.

[0024] Reference Figure 7 and Figure 8 In the embodiment of the present application, the fixing plate 83 located on the movable conduit 82 is rectangular, and the fixing plate 83 located on the fixed conduit 81 is circular; the rectangular fixing plate 83 is convenient for connection with the movable anti-top cava 11, and at the same time, it is convenient for bolts to fix the movable anti-top cava 11 and the fixing plate 83; the circular fixing plate 83 is connected to the fixed conduit 81 and the lower load-bearing plate 6, which is convenient for increasing the number of bolts to connect the fixed conduit 81 and the lower load-bearing plate 6.

[0025] Reference Figure 7 and Figure 8 In the embodiment of the present application, the straightening column 8 also includes a straightening device 9, which includes a mounting ring 91, a mounting rod 92 and a fixing ring 93. The mounting ring 91 is fixedly sleeved on the fixing guide tube 81, and the fixing ring 93 is fixedly sleeved on the load-bearing column 20. The two ends of the mounting rod 92 are respectively fixedly arranged on the mounting ring 91 and the fixing ring 93. When the straightening device 9 is installed, the mounting ring 91 is fixed to the fixing guide tube 81 by bolts, and the fixing ring 93 is sleeved on the load-bearing column 20, so that the straightening column 8 is installed in the load-bearing column, and the operation is simple and convenient.

[0026] Reference Figure 7 and Figure 8 In order to facilitate the adjustment of the distance between the mounting ring 91 and the fixing ring 93 and to facilitate the fixing of the upright column 8 on the load-bearing column, in the embodiment of the present application, the mounting rod 92 is a retractable structure.

[0027] Reference Figure 4 and Figure 6 In the embodiment of the present application, a lifting flange 10 and a five-way valve 15 are provided below the lower bearing plate 6. The five-way valve 15 is provided on the lower bearing plate 6. The five-way valve 15 is used to connect and fix the anti-top slip 12 to the lifting flange 10. Under the action of the lifting flange 10, it is convenient to lift the pressure-carrying machine and facilitate oil production operations. At the same time, under the action of the five-way valve 15, it is convenient to balance the pressure relief.

[0028] Reference Figure 4 Furthermore, it also includes a fixed cava maintenance platform 16 and a raised working window operating platform 17. The fixed cava maintenance platform 16 is used for inspecting and maintaining the fixed anti-top cava 12 and the fixed load-bearing cava 13; the fixed cava maintenance platform 16 is convenient for maintaining the fixed cava; under the action of the raised working window operating platform 17, it is convenient to lower the associated cable pipe column 19.

[0029] Reference Figure 4 In the embodiment of the present application, it also includes a telescopic ladder 18, one side of the telescopic ladder 18 is fixedly set on the upper operating platform, and the other side is fixedly set on the lower operating platform. The telescopic ladder 18 is telescoped to the fixed slip maintenance platform 16; under the action of the telescopic ladder 18, it is convenient for the operator to climb onto the pressure working machine for maintenance, etc.

[0030] Reference Figure 4 In the embodiment of the present application, it also includes an associated cable pipe column 19, one end of which is fixedly arranged below the fixed slip maintenance platform 16, and the other end is fixed to the raised working window operating platform 17, and is used to increase the height of the American-type belt pressure working machine.

[0031] The implementation principle of a belt pressure working machine capable of switching between the Additive and American installation modes in the embodiment of the present application is as follows: When the added pressure working machine is converted, the movable anti-top slip 11 is first separated from the fixed anti-top slip 12. At this time, a crane or other lifting equipment is used to lift the fixed anti-top slip 12 and the components below, and then another lifting equipment is used to lift the righting column 8, and the righting column 8 is lifted between the movable anti-top slip 11 and the lower bearing plate 6. Then the movable guide tube 82 is fixed to the movable anti-top slip 11 through the fixed plate 83, and then the lifting flange 10 and the five-way valve 15 are installed on the lower bearing plate 6. The righting device 9 is installed. First, the mounting ring 91 is fixed to the fixed guide tube 81, and then the fixing ring 93 is sleeved on the bearing column 20 to complete the installation of the righting device 9. Then the telescopic ladder 18 is stretched so that the lower part of the telescopic ladder 18 is installed on the fixed slip maintenance platform 16, and then the fixed slip maintenance platform 16 and the lifting working window operating platform 17 are installed to complete the conversion of the added pressure working machine, thereby reducing the premise investment of the oil production equipment.

[0032] The embodiment of the present application discloses a conversion method of a belt pressure working machine capable of switching between the Additive and American installation modes, which is used to convert the belt pressure working machine capable of switching between the Additive and American installation modes, and further includes: S1: When the Canadian type belt pressure machine is converted into the American type belt pressure machine, the movable anti-top slip 11 is first separated from the fixed anti-top slip 12. At this time, a crane is used to hoist the fixed anti-top slip 12 and the components below, and then another hoist is used to hoist the straightening column 8, and the straightening column 8 is hoisted between the movable anti-top slip 11 and the lower bearing plate 6; S2: Then, the movable conduit 82 is fixed on the movable anti-top slip 11 through the fixing plate 83, and then the lifting flange 10 and the five-way valve 15 are installed on the lower bearing plate 6; S3: installing the straightening device 9, first fixing the mounting ring 91 on the fixed guide tube 81, and then sleeve the fixing ring 93 on the load-bearing column 20, to complete the installation of the straightening device 9; S4: stretching the telescopic ladder 18 again so that the lower part of the telescopic ladder 18 is installed on the fixed slip maintenance platform 16; S5: The fixed slip maintenance platform 16 and the raised working window operating platform 17 are then installed to complete the conversion of the pressure-added belt operating machine.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A belt pressure machine capable of switching between the Canadian and American installation modes, characterized in that: The invention comprises a pressure-assisted operation machine, the pressure-assisted operation machine comprises a support assembly, a lifting part, a slip device, a well control part, and a hydraulic control part, the slip device comprises a fixed slip group (1) and a movable slip group (2), the fixed slip group (1) comprises a movable anti-top slip (11), a fixed anti-top slip (12), a fixed load-bearing slip (13) and an active turntable (14), the active turntable (14) comprises a turntable (141) and an upper seat ring (142), the movable slip group (2) is connected to the turntable (141); The well control part comprises an annular blowout preventer (3) and a working blowout preventer (4), wherein the annular blowout preventer (3) is connected to a fixed bearing slip (13), and the working blowout preventer (4) is arranged on a lower bearing plate (6) of the support assembly and connected to the annular blowout preventer (3); The lifting part comprises four lifting cylinders (7), the cylinder bodies of the lifting cylinders (7) are arranged on the upper load-bearing plate (5) of the bracket assembly and are connected to the turntable (141); The hydraulic control part includes a plurality of hydraulic pipelines, which connect the hydraulic power source with other parts of the pressure working machine; a load-bearing column (20) is arranged between the upper load-bearing plate (5) and the lower load-bearing plate (6) of the support assembly, and the traveling slip group (2) and the well control part are both located between the load-bearing columns (20); It also includes a righting column (8), which is used to be installed between the movable anti-top slip (11) and the lower bearing plate (6). The fixed anti-top slip (12) is arranged below the lower bearing plate (6) to convert the A-type belt pressure working machine into an American-type belt pressure working machine.

2. A belt pressure working machine capable of switching between the Additive and American installation modes according to claim 1, characterized in that: The upright post (8) comprises a fixed conduit (81), a movable conduit (82) and a fixed plate (83); the movable conduit (82) is slidably sleeved in the fixed conduit (81); two fixed plates (83) are provided and are respectively fixedly arranged at the ends of the movable conduit (82) and the fixed conduit (81), and are fixedly connected to the movable anti-top slip (11) and the lower bearing plate (6) by bolts.

3. A belt pressure working machine capable of switching between the Additive and American installation modes according to claim 2, characterized in that: The fixing plate (83) located on the movable conduit (82) is rectangular, and the fixing plate (83) located on the fixed conduit (81) is circular.

4. The belt pressure working machine capable of switching between the Additive and American installation modes according to claim 3, characterized in that: The upright post (8) further comprises an upright device (9), wherein the upright device (9) comprises a mounting ring (91), a mounting rod (92) and a fixing ring (93), wherein the mounting ring (91) is fixedly sleeved on the fixing guide tube (81), the fixing ring (93) is fixedly sleeved on the load-bearing post (20), and the two ends of the mounting rod (92) are respectively fixedly arranged on the mounting ring (91) and the fixing ring (93).

5. The belt pressure working machine capable of switching between the Additive and American installation modes according to claim 4, characterized in that: The mounting rod (92) is a telescopic structure.

6. The belt pressure working machine capable of switching between the Additive and American installation modes according to claim 1, characterized in that: A raised flange (10) and a five-way valve (15) are provided below the lower bearing plate (6). The five-way valve (15) is provided on the lower bearing plate (6). The five-way valve (15) is used to connect and fix the anti-top slip (12) to the raised flange (10).

7. The belt pressure working machine capable of switching between the Additive and American installation modes according to claim 1, characterized in that: It also comprises a fixed slip maintenance platform (16) and a raised working window operating platform (17), wherein the fixed slip maintenance platform (16) is used for inspecting and maintaining the fixed anti-top slips (12) and the fixed load-bearing slips (13).

8. The belt pressure working machine capable of switching between the Additive and American installation modes according to claim 7, characterized in that: It also comprises a telescopic ladder (18), one side of the telescopic ladder (18) is fixedly arranged on the upper operating platform, and the other side of the telescopic ladder (18) is fixedly arranged on the lower operating platform, and the telescopic ladder (18) is telescoped to the fixed slip maintenance platform (16).

9. The belt pressure working machine capable of switching between the Additive and American installation modes according to claim 7, characterized in that: It also includes an associated cable pipe column (19), one end of which is fixedly arranged below the fixed slip maintenance platform (16), and the other end of which is fixed to the raised working window operating platform (17) and is used to raise the height of the American-style belt pressure working machine.

10. A method for converting a belt pressure working machine capable of converting between the Additive and American installation modes, for converting the belt pressure working machine capable of converting between the Additive and American installation modes as claimed in any one of claims 1 to 9, characterized in that: Also includes; S1: When the pressure-type belt-pressing machine is converted into the American pressure-type belt-pressing machine, the movable anti-top slip (11) is first separated from the fixed anti-top slip (12). At this time, a crane is used to hoist the fixed anti-top slip (12) and the components below. Another hoisting device is then used to hoist the upright post (8). The upright post (8) is hoisted between the movable anti-top slip (11) and the lower bearing plate (6). S2: Then, the floating guide tube (82) is fixed to the floating anti-top slip (11) through the fixing plate (83), and then the lifting flange (10) and the five-way valve (15) are installed on the lower bearing plate (6); S3: installing the straightening device (9), first fixing the mounting ring (91) on the fixed guide tube (81), and then sleeve the fixing ring (93) on the load-bearing column (20), thus completing the installation of the straightening device (9); S4: further stretching the telescopic ladder (18) so that the lower part of the telescopic ladder (18) is installed on the fixed slip maintenance platform (16); S5: The fixed slip maintenance platform (16) and the raised working window operation platform (17) are then installed to complete the conversion of the pressure-added belt operation machine.

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