Hydraulic drilling rig lifting system

Abstract

The invention discloses a hydraulic drilling rig lifting system in the technical field of hydraulic drilling rigs. The hydraulic drilling rig lifting system aims at solving the problem that in the prior art, a hydraulic drilling rig lifting system conflicts between the derrick length and the transportation requirement. The method comprises the steps that firstly, a derrick outer section and a derrick inner section are arranged in a segmented mode, possibility is provided for an ultra-long derrick after segmented assembly, a single lifting oil cylinder is replaced by a lifting oil cylinder set, and separated transportation is achieved; the size of the derrick inner section is smaller than that of the derrick outer section, so that the corresponding derrick inner section subsection is embedded into the corresponding derrick outer section subsection, a single lifting oil cylinder is embedded into the derrick inner section, and the transition transportation volume is compressed; during operation, the drill pipe is disassembled into single sections and lifting oil cylinders and then is recombined to form a longer derrick, so that the operation requirements of two or more drill pipes are met; and the derrick length and transportation transition requirements are considered.

Description

Technical Field

[0001] The invention relates to a hydraulic drilling rig lifting system and belongs to the technical field of hydraulic drilling rigs. Background Art

[0002] The traditional hydraulic coalbed methane drilling rig lifting system uses an oil cylinder to drive the inner section of the derrick to slide up and down on the outer section to complete the lifting and lowering actions.

[0003] There's a correlation between the length of a single drill pipe, the stroke of the equipment's hoist cylinders, the effective travel of the top drive, and the derrick length. Traditional hydraulic CBM drilling rig hoist systems, due to the limited length of the derrick, generally only allow single-rod operation. To achieve dual-rod operation, the derrick must be lengthened. However, an excessively long derrick is difficult to transport and cannot meet the required road surface requirements for transitions between work areas.

[0004] Therefore, the existing hydraulic drilling rig lifting system has a conflict between the derrick length and the transportation requirements. Summary of the Invention

[0005] The purpose of this application is to overcome the deficiencies in the prior art and to provide a hydraulic drilling rig lifting system that takes into account both longer derrick lengths and transportation and transfer requirements.

[0006] To achieve the above objectives, this application is implemented using the following technical solutions: The present application provides a hydraulic drilling rig lifting system, comprising: Sliding components are distributed on the outer section of the derrick, the inner section of the derrick and the lifting cylinder group; The outer section of the derrick comprises a plurality of segments detachably connected to each other; The inner section of the derrick comprises a plurality of segments detachably connected to each other, and the segments of the inner section of the derrick are nested into the corresponding segments of the outer section of the derrick through the sliding assembly; The lifting cylinder group includes a plurality of cylinders that are detachably connected to each other, and the segments of the lifting cylinder group are nested into the corresponding segments of the inner section of the derrick through the sliding assembly.

[0007] In some embodiments of the present application, the segments of the outer mast section include a first segment of the outer mast section and a second segment of the outer mast section; the segments of the inner mast section include a first segment of the inner mast section corresponding to the first segment of the outer mast section and a second segment of the inner mast section corresponding to the second segment of the outer mast section; The sliding assembly includes a derrick outer section guide rail provided in the first section of the derrick outer section and the second section of the derrick outer section, and a derrick inner section guide wheel is provided on the outer wall of the first section of the derrick inner section and the outer side of the second section of the derrick inner section for sliding on the derrick outer section guide rail; The sliding assembly includes an inner section guide rail provided on the outer wall of the first section of the inner section of the derrick and outside the second section of the inner section of the derrick, and outer section guide wheels for sliding on the inner section guide rail are provided in the first section of the outer section of the derrick and the second section of the outer section of the derrick.

[0008] In some embodiments of the present application, a cylinder guide rail is provided in the inner section of the derrick; the lifting cylinder group includes a first cylinder and a second cylinder; The first oil cylinder and the second oil cylinder are provided with oil cylinder slots for sliding on the oil cylinder guide rails.

[0009] In some embodiments of the present application, the cylinder slot includes a third slider respectively arranged at the end of the first cylinder and the second cylinder, the third slider is symmetrically distributed along the axis of the first cylinder or the second cylinder, and the third slider opens a third groove, and the third groove is opened along the axis of the first cylinder or the second cylinder.

[0010] In some embodiments of the present application, the first section of the derrick outer section and the second section of the derrick outer section are respectively provided with corresponding first orifice plates at adjacent ends. When the first section of the derrick outer section and the second section of the derrick outer section are aligned, the adjacent first orifice plates overlap. The derrick outer section connecting pin is inserted into the overlapping bolt holes of the adjacent first orifice plates to achieve the connection between the first section of the derrick outer section and the second section of the derrick outer section. The first section of the inner section of the derrick and the second section of the inner section of the derrick are respectively provided with corresponding second orifice plates at adjacent ends. When the first section of the inner section of the derrick and the second section of the inner section of the derrick are aligned, the adjacent second orifice plates overlap. The connection between the first section of the inner section of the derrick and the second section of the inner section of the derrick is achieved by inserting the connecting pin of the inner section of the derrick into the overlapping bolt holes of the adjacent second orifice plates.

[0011] In some embodiments of the present application, the first section of the outer section of the derrick and the second section of the outer section of the derrick are respectively provided with corresponding bite plates at adjacent ends. When the first section of the outer section of the derrick and the second section of the outer section of the derrick are connected, the adjacent bite plates bite each other, and the bite plates are arranged along the straight edge of the cross-section of the first section of the outer section of the derrick or the second section of the outer section of the derrick.

[0012] In some embodiments of the present application, the first oil cylinder and the second oil cylinder are respectively provided with a third connecting plate at adjacent ends, and the third connecting plate is evenly provided with second bolt holes along the edge of the cross section. When the first oil cylinder and the second oil cylinder are aligned, the second bolt holes on the adjacent third connecting plates overlap respectively, and the connection between the first oil cylinder and the second oil cylinder is achieved by screwing the connecting bolts into the overlapping second bolt holes.

[0013] In some embodiments of the present application, the first oil cylinder and the second oil cylinder are respectively provided with interlocking anti-slip concave-convex structures at adjacent ends, and when the first oil cylinder and the second oil cylinder are connected, the adjacent interlocking anti-slip concave-convex structures interlock with each other; The large cavity of the first oil cylinder and the large cavity of the second oil cylinder are both provided with a large cavity quick change, and the large cavity quick change of the first oil cylinder and the large cavity quick change of the second oil cylinder are connected through a large cavity tube; the small cavity of the first oil cylinder and the small cavity of the second oil cylinder are both provided with a small cavity quick change, and the small cavity quick change of the first oil cylinder and the small cavity quick change of the second oil cylinder are connected through a small cavity tube.

[0014] In some embodiments of the present application, the large-cavity quick-change is connected in series with an explosion-proof valve.

[0015] In some embodiments of the present application, the large-cavity oil port and the small-cavity oil port of the second oil cylinder are arranged on the rod wall of the piston rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The hydraulic drilling rig hoisting system provided in this application first deploys the outer and inner sections of the derrick separately in sections. The assembled sections allow for the construction of extra-long derricks, and the use of a lifting cylinder assembly instead of a single lifting cylinder allows for separate transportation. The inner section is smaller than the outer section, so the corresponding inner section can be nested within the corresponding outer section, and the single lifting cylinder nested within the inner section, reducing the transport volume. During operation, the sections and lifting cylinders are disassembled and reassembled to form a longer derrick, meeting the needs of two or more drill pipes. This balances the derrick length and transport requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 is an overall side view of a derrick constructed by the hydraulic drilling rig hoisting system provided in this embodiment; Figure 2 This is a schematic diagram of the structure of the hydraulic drilling rig lifting system provided in this embodiment, in which the sections of the derrick outer section are connected; Figure 3 This is a schematic diagram of the structure of the hydraulic drilling rig lifting system provided in this embodiment, in which the inner sections of the derrick are connected; Figure 4This is a schematic cross-sectional view of the connection between the first oil cylinder and the second oil cylinder in the hydraulic drilling rig lifting system provided in this embodiment; Figure 5 2 is a schematic structural diagram of the first oil cylinder and the second oil cylinder in the hydraulic drilling rig lifting system provided in this embodiment; Figure 6 This is a structural diagram of the second section of the outer section of the derrick and its internal nesting structure during transportation in the hydraulic drilling rig lifting system provided in this embodiment; Figure 7 This is a structural diagram of the first section of the derrick outer section and its internal nested structure during transportation in the hydraulic drilling rig lifting system provided in this embodiment; Figure 8 yes Figure 1 A top view of In the picture: 1. Outer section of derrick; 2. Top drive; 3. Inner section of derrick; 4. Hoisting cylinder assembly; 5. Wire rope; 6. Goose head; 1-1, first section of the derrick outer section; 1-2, guide rail of the derrick outer section; 1-3, connecting pin of the derrick outer section; 1-4, guide wheel of the derrick outer section; 1-5, second section of the derrick outer section; 1-6, first orifice plate; 1-7, bite plate; 3-1, first section of the derrick inner section; 3-2, oil cylinder guide rail; 3-3, connecting pin of the derrick inner section; 3-4, second section of the derrick inner section; 3-5, guide rail of the derrick inner section; 3-6, guide wheel of the derrick inner section; 3-7, second orifice plate; 4-1, first oil cylinder; 4-2, explosion-proof valve; 4-3, large-cavity quick-change; 4-4, large-cavity tube; 4-5, connecting bolt; 4-6, second oil cylinder; 4-7, small-cavity oil port; 4-8, large-cavity oil port; 4-9, small-cavity quick-change; 4-10, small-cavity tube; 4-11, oil cylinder slot; 4-11-1, third slider; 4-11-2, third groove; 4-12, bite-type anti-skid concave-convex structure; 4-13, third connecting plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the present application / the present application's embodiments to clearly and completely describe the technical solutions of the present application / the present application's embodiments. Obviously, the described embodiments are only part of the embodiments of the present application / the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application / the present application, its application, or use. Example 1

[0020] This embodiment provides a hydraulic drilling rig lifting system to solve the problem in the prior art of the conflict between the length of the derrick and the transportation requirements.

[0021] refer to Figures 1 to 8The hydraulic drilling rig lifting system provided in this embodiment includes: Sliding components are distributed on the derrick outer section 1, the derrick inner section 3 and the lifting cylinder group 4; The outer section 1 of the derrick comprises a plurality of sections detachably connected to each other; The inner section 3 of the derrick includes multiple segments that are detachably connected to each other. The segments of the inner section 3 of the derrick are nested into the corresponding segments of the outer section 1 of the derrick through sliding assemblies. The lifting cylinder group 4 includes a plurality of cylinders detachably connected to each other, and the segments of the lifting cylinder group 4 are nested into the corresponding segments of the derrick inner section 3 through sliding components.

[0022] First, the outer mast section 1 and inner mast section 3 are deployed in sections. These sections, when assembled, allow for the construction of extra-long derricks. Lift cylinder groups 4 replace individual lift cylinders, enabling separate transport. The inner mast section 3 is smaller than the outer mast section 1. Therefore, corresponding inner mast section 3 sections can be nested within corresponding outer mast section 1 sections, and a single lift cylinder can be nested within the inner mast section 3, reducing the transport volume. During operation, the sections and lift cylinders are disassembled and reassembled to create a longer derrick, accommodating the needs of two or more drill pipes. This balances derrick length and transport requirements. Example 2

[0023] This embodiment provides a hydraulic drilling rig lifting system. This embodiment is optimized based on the first embodiment to improve the technical effect and refine the technical solution. For details not fully described in this embodiment, please refer to the first embodiment.

[0024] As one example, refer to Figure 2 and Figure 3 In this embodiment, a two-section derrick is taken as an example. The sections of the derrick outer section 1 include the first section 1-1 and the second section 1-5. The sections of the derrick inner section 3 include the first section 3-1 corresponding to the first section 1-1 and the second section 3-4 corresponding to the second section 1-5. The sliding assembly includes a derrick outer section guide rail 1-2 provided in the first section 1-1 of the derrick outer section and the second section 1-5 of the derrick outer section. The outer wall of the first section 3-1 of the derrick inner section and the outer side of the second section 3-4 of the derrick inner section are both provided with a derrick inner section guide wheel 3-6 for sliding on the derrick outer section guide rail 1-2. The sliding assembly includes an inner section guide rail 3-5 provided on the outer wall of the first section 3-1 of the inner section of the derrick and outside the second section 3-4 of the inner section of the derrick, and an outer section guide wheel 1-4 for sliding on the inner section guide rail 3-5 of the derrick is provided in the first section 1-1 of the outer section of the derrick and the second section 1-5 of the outer section of the derrick.

[0025] As one embodiment, a cylinder guide rail 3-2 is provided in the inner section 3 of the derrick; the lifting cylinder group 4 includes a first cylinder 4-1 and a second cylinder 4-6; the first cylinder 4-1 and the second cylinder 4-6 are provided with a cylinder slot 4-11 for sliding on the cylinder guide rail 3-2.

[0026] refer to Figure 6 and Figure 7 The first oil cylinder 4-1 can slide into the second section 3-4 of the inner mast section through the cooperation of the oil cylinder slot 4-11 and the oil cylinder guide rail 3-2. The second section 3-4 of the inner mast section slides into the second section 1-5 of the outer mast section through the two-way cooperation of the "outer mast section guide rail 1-2 and the inner mast guide wheel 3-6" and "inner mast guide rail 3-5 and the outer mast guide wheel 1-4." The two sets of slide rail and guide wheel systems can reduce the shaking caused by the two sections during transfer and transportation after they are connected, and prevent them from getting stuck. The rest is the same.

[0027] As one example, refer to Figure 5 The cylinder slot 4-11 includes a third slider 4-11-1 respectively arranged at the end of the first cylinder 4-1 and the second cylinder 4-6. The third slider 4-11-1 is symmetrically distributed along the axis of the first cylinder 4-1 or the second cylinder 4-6. The third slider 4-11-1 opens a third groove 4-11-2, and the third groove 4-11-2 is opened along the axis of the first cylinder 4-1 or the second cylinder 4-6.

[0028] As one example, refer to Figure 2 and Figure 3 The first section 1-1 of the outer mast section and the second section 1-5 of the outer mast section are each provided with a corresponding first orifice plate 1-6 at one adjacent end. When the first section 1-1 and the second section 1-5 are aligned, the adjacent first orifice plates 1-6 overlap. The outer mast section connecting pin 1-3 is inserted into the overlapping bolt holes of the adjacent first orifice plates 1-6 to connect the first section 1-1 and the second section 1-5 of the outer mast section; the first section 3-1 and the second section 3-4 of the inner mast section are each provided with a corresponding second orifice plate 3-7 at one adjacent end. When the first section 3-1 and the second section 3-4 of the inner mast section are aligned, the adjacent second orifice plates 3-7 overlap. The inner mast section connecting pin 3-3 is inserted into the overlapping bolt holes of the adjacent second orifice plates 3-7 to connect the first section 3-1 and the second section 3-4 of the inner mast section. This method completes the connection between the sections.

[0029] As one embodiment, the first section 1-1 of the outer section of the derrick and the second section 1-5 of the outer section of the derrick are respectively provided with corresponding bite plates 1-7 at adjacent ends. When the first section 1-1 of the outer section of the derrick and the second section 1-5 of the outer section of the derrick are connected, the adjacent bite plates 1-7 bite into each other, and the bite plates 1-7 are arranged along the straight edge of the cross section of the first section 1-1 of the outer section of the derrick or the second section 1-5 of the outer section of the derrick.

[0030] When the segments are spliced, the interlocking plates 1-7 can promote the force integration of the contact points between the first section 1-1 of the derrick outer section and the second section 1-5 of the derrick outer section, thereby reducing the possibility of eccentric fracture.

[0031] As one of the embodiments, the first cylinder 4-1 and the second cylinder 4-6 are respectively provided with a third connecting plate 4-13 at adjacent ends, and the third connecting plate 4-13 is evenly provided with second bolt holes along the edge of the cross section. When the first cylinder 4-1 and the second cylinder 4-6 are aligned, the second bolt holes on the adjacent third connecting plates 4-13 overlap respectively, and the connection between the first cylinder 4-1 and the second cylinder 4-6 is achieved by screwing the connecting bolts 4-5 into the overlapping second bolt holes.

[0032] Similar to the bite plate 1-7, the third connecting plate 4-13 also promotes the force integration between the first cylinder 4-1 and the second cylinder 4-6, and the second bolt holes of the third connecting plate 4-13 are evenly distributed along the edges of the first cylinder 4-1 and the second cylinder 4-6, and each pair of overlapping second bolt holes passes through the corresponding connecting bolt 4-5, which makes the connection more secure.

[0033] As one example, refer to Figure 4 The first cylinder 4-1 and the second cylinder 4-6 can be arranged "back to back", wherein the first cylinder 4-1 and the second cylinder 4-6 are respectively provided with a bite anti-skid concave-convex structure 4-12 at adjacent ends. When the first cylinder 4-1 and the second cylinder 4-6 are connected, the adjacent bite anti-skid concave-convex structures 4-12 bite each other; the first cylinder 4-1 and the second cylinder 4-6 are mainly output components, and the bite between the bite anti-skid concave-convex structures 4-12 can make the bite force between the first cylinder 4-1 and the second cylinder 4-6 continuously increase with the output torque of the piston rod.

[0034] The large chamber of the first oil cylinder 4-1 and the large chamber of the second oil cylinder 4-6 are both equipped with a large chamber quick-change 4-3, which are connected by a large chamber tube 4-4. The small chamber of the first oil cylinder 4-1 and the small chamber of the second oil cylinder 4-6 are both equipped with a small chamber quick-change 4-9, which are connected by a small chamber tube 4-10. As one embodiment, the small chamber tube 4-10 and the large chamber tube 4-4 can be made of a hose. By providing a quick-change head, the disassembly and assembly of the two oil cylinders can be met, and the hydraulic oil can also be interconnected.

[0035] As one embodiment, the large-cavity quick changer 4-3 is connected in series with an explosion-proof valve 4-2 to prevent explosion due to pressure overload.

[0036] As one embodiment, the large cavity oil port 4-8 and the small cavity oil port 4-7 of the second oil cylinder 4-6 are arranged on the rod wall of the piston rod, and the hydraulic oil is replenished through the piston rod.

[0037] As one example, refer to Figure 1 and Figure 6 , the goose head 6 can be connected to one of the segments of the derrick outer section 1 by bolts alone. After the derrick is unfolded, the goose head 6, the top drive 2 and the wire rope 5 can be installed one after another. Example 3

[0038] This embodiment provides a hydraulic drilling rig lifting system. This embodiment is optimized based on the first embodiment to improve the technical effect and refine the technical solution. For details not fully described in this embodiment, please refer to the first embodiment.

[0039] Figures 1 to 8 As shown, the lifting system includes: a derrick outer section 1, a top drive 2, a derrick inner section 3, a lifting cylinder assembly 4, a wire rope 5, and a goose head 6. The derrick inner section 3 is inserted into the derrick outer section 1. The lifting cylinder assembly 4 is connected to the derrick outer section 1 at one end and to the derrick inner section 3 at the other end. The goose head 6 is connected to the top of the derrick inner section 3. The wire rope 5 has one fixed end and the other end connected to the upper end of the top drive 2. The lifting cylinder assembly 4 extends and retracts, driving the derrick inner section 3, the goose head 6, and the top drive 2 to complete the lifting and lowering operations.

[0040] The lifting system includes: a mast outer section 1, a top drive 2, a mast inner section 3, a lifting cylinder assembly 4, a wire rope 5, and a goose head 6. The mast inner section 3 is inserted into the mast outer section 1. One end of the lifting cylinder assembly 4 is connected to the mast outer section 1, and the other end is connected to the mast inner section 3. The goose head 6 is connected to the top of the mast inner section 3. One end of the wire rope 5 is fixed, and the other end is connected to the upper end of the top drive 2. The lifting cylinder assembly 4 extends and retracts, driving the mast inner section 3, the goose head 6, and the top drive 2 to complete the lifting and lowering operations.

[0041] The derrick inner section 3 includes: a first derrick inner section 3-1, a cylinder guide rail 3-2, a derrick inner section connecting pin 3-3, a second derrick inner section 3-4, a derrick inner section guide rail 3-5, and a derrick inner section guide wheel 3-6. The first derrick inner section 3-1 is connected to the second derrick inner section 3-4 via the derrick inner section connecting pin 3-3. The derrick inner section guide wheel 3-6 is connected to the first derrick inner section 3-1 via bolts.

[0042] The lift cylinder assembly 4 includes: a first cylinder 4-1, an explosion-proof valve 4-2, a large-cavity quick-change unit 4-3, a large-cavity tube 4-4, connecting bolts 4-5, a second cylinder 4-6, a small-cavity oil port 4-7, a large-cavity oil port 4-8, a small-cavity quick-change unit 4-9, a small-cavity tube 4-10, and a cylinder retaining slot 4-11. The first cylinder 4-1 is connected to the second cylinder 4-6 via connecting bolts 4-5. The large-cavity oil port of the cylinder is connected via the explosion-proof valve 4-2, the large-cavity quick-change unit 4-3, and the large-cavity tube 4-4. The small-cavity oil port of the cylinder is connected via the small-cavity quick-change unit 4-9 and the small-cavity tube 4-10. The small-cavity oil port 4-7 is connected to the small-cavity oil port of the cylinder via a piston rod, while the large-cavity oil port 4-8 is connected to the large-cavity oil port of the cylinder via a piston rod. Cylinder retaining slots 4-11 are provided at both ends of the second cylinder 4-6 and the first cylinder 4-1.

[0043] During transportation, disassemble the derrick outer section connecting pin 1-3, the derrick inner section connecting pin 3-3, the lifting cylinder assembly connecting bolt 4-5, the large-chamber quick-change 4-3, and the small-chamber quick-change 4-9. The cylinder slot 4-11 slots into the cylinder guide rail 3-2, integrating the derrick inner section second section 3-4 and the first cylinder 4-1. The derrick outer section guide wheel 1-4 slots into the derrick inner section guide rail 3-5, integrating the derrick outer section second section 1-5 and the derrick inner section second section 3-4. The goosehead 6 is bolted to the top of the derrick inner section second section 3-4. This allows the derrick outer section second section 1-5, the derrick inner section second section 3-4, the lifting cylinder assembly second section 4-1, and the goosehead 6 to be transported as a single unit.

[0044] The cylinder slot 4-11 is slotted into the cylinder guide rail 3-2, allowing the mast inner section first section 1-1 and the second cylinder 4-6 to function as a single unit. The mast inner section guide wheel 3-6 is slotted into the mast outer section guide rail 1-2, allowing the mast outer section first section 1-1 and the mast inner section first section 3-1 to function as a single unit. This allows the mast outer section first section 1-1, the mast inner section first section 3-1, and the lifting cylinder assembly first section 4-6 to be transported as a single unit.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "provided in", "provided with", "located in", "installed", "set", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on specific circumstances. "Hinged" includes "rotational connection".

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hydraulic drilling rig lifting system, characterized in that: include, Sliding components are distributed on the derrick outer section (1), the derrick inner section (3) and the lifting cylinder group (4); The outer section of the derrick (1) comprises a plurality of segments detachably connected to each other; The inner section (3) of the derrick comprises a plurality of segments that are detachably connected to each other, and the segments of the inner section (3) of the derrick are nested into corresponding segments of the outer section (1) of the derrick through the sliding assembly; The lifting cylinder group (4) comprises a plurality of cylinders detachably connected to each other, and the segments of the lifting cylinder group (4) are nested into corresponding segments of the derrick inner section (3) through the sliding assembly.

2. The hydraulic drilling rig lifting system according to claim 1, characterized in that: The sections of the derrick outer section (1) include a first section (1-1) of the derrick outer section and a second section (1-5) of the derrick outer section; the sections of the derrick inner section (3) include a first section (3-1) of the derrick inner section corresponding to the first section (1-1) of the derrick outer section and a second section (3-4) of the derrick inner section corresponding to the second section (1-5) of the derrick outer section; The sliding assembly comprises a derrick outer section guide rail (1-2) provided in the first section (1-1) of the derrick outer section and the second section (1-5) of the derrick outer section, and a derrick inner section guide wheel (3-6) for sliding on the derrick outer section guide rail (1-2) is provided on the outer wall of the first section (3-1) of the derrick inner section and the outer side of the second section (3-4) of the derrick inner section. The sliding assembly comprises a derrick inner section guide rail (3-5) arranged on the outer wall of the first section (3-1) of the derrick inner section and outside the second section (3-4) of the derrick inner section; and a derrick outer section guide wheel (1-4) for sliding on the derrick inner section guide rail (3-5) is provided in the first section (1-1) of the derrick outer section and the second section (1-5) of the derrick outer section.

3. The hydraulic drilling rig lifting system according to claim 2, characterized in that: The inner section (3) of the derrick is provided with a cylinder guide rail (3-2); the lifting cylinder group (4) comprises a first cylinder (4-1) and a second cylinder (4-6); The first oil cylinder (4-1) and the second oil cylinder (4-6) are provided with oil cylinder clamping grooves (4-11) for sliding on the oil cylinder guide rail (3-2).

4. The hydraulic drilling rig lifting system according to claim 3, characterized in that: The oil cylinder slot (4-11) comprises a third slider (4-11-1) respectively provided at the end of the first oil cylinder (4-1) and the second oil cylinder (4-6); the third slider (4-11-1) is symmetrically distributed along the axis of the first oil cylinder (4-1) or the second oil cylinder (4-6); the third slider (4-11-1) is provided with a third groove (4-11-2); and the third groove (4-11-2) is provided along the axis of the first oil cylinder (4-1) or the second oil cylinder (4-6).

5. The hydraulic drilling rig lifting system according to claim 2, characterized in that: The first section (1-1) of the derrick outer section and the second section (1-5) of the derrick outer section are respectively provided with corresponding first orifice plates (1-6) at adjacent ends; when the first section (1-1) of the derrick outer section and the second section (1-5) of the derrick outer section are aligned, the adjacent first orifice plates (1-6) overlap; and the derrick outer section connecting pin (1-3) is inserted into the overlapping bolt holes of the adjacent first orifice plates (1-6) to achieve the connection between the first section (1-1) of the derrick outer section and the second section (1-5); The first section (3-1) of the derrick inner section and the second section (3-4) of the derrick inner section are respectively provided with corresponding second orifice plates (3-7) at adjacent ends. When the first section (3-1) of the derrick inner section and the second section (3-4) of the derrick inner section are aligned, the adjacent second orifice plates (3-7) overlap. The connection between the first section (3-1) of the derrick inner section and the second section (3-4) of the derrick inner section is achieved by inserting a derrick inner section connecting pin (3-3) into the overlapping bolt holes of the adjacent second orifice plates (3-7).

6. The hydraulic drilling rig lifting system according to claim 5, characterized in that: The first section (1-1) of the derrick outer section and the second section (1-5) of the derrick outer section are respectively provided with corresponding bite plates (1-7) at adjacent ends. When the first section (1-1) of the derrick outer section and the second section (1-5) of the derrick outer section are connected, the adjacent bite plates (1-7) bite into each other, and the bite plates (1-7) are arranged along the straight edge of the cross section of the first section (1-1) of the derrick outer section or the second section (1-5).

7. The hydraulic drilling rig lifting system according to claim 3, characterized in that: The first oil cylinder (4-1) and the second oil cylinder (4-6) are respectively provided with a third connecting plate (4-13) at adjacent ends. The third connecting plate (4-13) is evenly provided with second bolt holes along the edge of the cross section. When the first oil cylinder (4-1) and the second oil cylinder (4-6) are aligned, the second bolt holes on the adjacent third connecting plates (4-13) respectively overlap. The first oil cylinder (4-1) and the second oil cylinder (4-6) are connected by screwing connecting bolts (4-5) into the overlapping second bolt holes.

8. The hydraulic drilling rig lifting system according to claim 3, characterized in that: The first oil cylinder (4-1) and the second oil cylinder (4-6) are respectively provided with engaging anti-skid concave-convex structures (4-12) at adjacent ends, and when the first oil cylinder (4-1) and the second oil cylinder (4-6) are connected, the adjacent engaging anti-skid concave-convex structures (4-12) engage with each other; The large cavity of the first oil cylinder (4-1) and the large cavity of the second oil cylinder (4-6) are both provided with a large cavity quick change (4-3), and the large cavity quick change (4-3) of the first oil cylinder (4-1) and the large cavity quick change (4-3) of the second oil cylinder (4-6) are communicated with each other through a large cavity tube (4-4); the small cavity of the first oil cylinder (4-1) and the small cavity of the second oil cylinder (4-6) are both provided with a small cavity quick change (4-9), and the small cavity quick change (4-9) of the first oil cylinder (4-1) and the small cavity quick change (4-9) of the second oil cylinder (4-6) are communicated with each other through a small cavity tube (4-10).

9. The hydraulic drilling rig lifting system according to claim 8, characterized in that: The large cavity quick change (4-3) is connected in series with an explosion-proof valve (4-2).

10. The hydraulic drilling rig lifting system according to claim 8, characterized in that: The large chamber oil port (4-8) and the small chamber oil port (4-7) of the second oil cylinder (4-6) are arranged on the rod wall of the piston rod.

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