Hydraulic lifting foldable drilling rig mast and drilling rig

Abstract

The embodiment of the utility model provides a hydraulic lifting and folding drilling rig mast and a drilling rig, and relates to the field of drilling rig lifting and folding masts. It aims to improve the problem that the drilling rig lifting and folding mast has a complex structure and needs to rely on other component assemblies to meet the functional requirements. In the hydraulic lifting and folding drilling rig mast, the mast frame is fixed on the drilling rig base; the telescopic mast is slidably connected to the mast frame along a preset direction; the lifting cylinder is fixed to the mast frame along a preset direction, the lifting cylinder is connected to the telescopic mast, and the lifting cylinder is used to push the telescopic mast to move up and down along the preset direction; the rotator is slidably connected to the mast frame along the preset direction, and the feed cylinder is connected to the rotator, and the feed cylinder is used to push the rotator to move up and down along the preset direction. The drilling rig includes a hydraulic lifting and folding drilling rig mast. The telescopic mast and the rotator are both driven by hydraulic cylinders. Without reducing the existing functions, the structure is simplified, and it is easy to operate, load and unload, and carry.

Description

Technical Field

[0001] The utility model relates to the field of drilling rig lifting masts, in particular to a hydraulic lifting and folding drilling rig mast and a drilling rig. Background Art

[0002] The traditional drilling rig lifting mast adopts chain transmission, chain lifting and cylinder lifting equipment combined together to achieve lifting. The assembly parts are numerous and heavy, the wearing parts are high in loss, and it is not easy to maintain later. It can only meet the functional requirements of the work with the help of other parts assembly, which is not easy to load and unload and carry, and the production cost is high. Utility Model Content

[0003] The purpose of the utility model includes, for example, providing a hydraulic lifting and folding drilling rig mast, which can improve the problem that the drilling rig lifting mast has a complex structure and needs to rely on other component assemblies to meet functional requirements.

[0004] The purpose of the utility model also includes providing a drilling rig, which can improve the problem that the lifting mast of the drilling rig has a complex structure and needs to rely on other component assemblies to meet functional requirements.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the utility model provides a hydraulic lifting and folding drilling rig mast, comprising a mast frame, a telescopic mast, a lifting cylinder, a rotator and a feed cylinder, wherein the mast frame is used to be fixed on a drilling rig base; the telescopic mast is slidably connected to the mast frame along a preset direction; the lifting cylinder is fixed to the mast frame along a preset direction, the lifting cylinder is connected to the telescopic mast, and the lifting cylinder is used to push the telescopic mast to move up and down along the preset direction; the rotator is slidably connected to the mast frame along a preset direction, the feed cylinder is fixed to the mast frame along a preset direction, the feed cylinder is connected to the rotator, and the feed cylinder is used to push the rotator to move up and down along the preset direction.

[0007] In addition, the hydraulic lifting and folding drilling rig mast provided by the embodiment of the utility model may also have the following additional technical features:

[0008] Optionally, the mast frame includes a mast guide sleeve fixed along a preset direction; the telescopic mast is slidably inserted into the mast guide sleeve, and the telescopic mast is used to move up and down along the mast guide sleeve.

[0009] Optionally, the mast frame also includes a guide rail fixed along a preset direction; the mast guide sleeve and the lifting cylinder are fixed in the guide rail along a preset direction, the lifting cylinder is located below the telescopic mast, and the top end of the lifting cylinder is connected to the bottom end of the telescopic mast.

[0010] Optionally, the mast frame further comprises a guide rod fixed along a preset direction, wherein the guide rod is fixed to the guide rail; and the rotator is slidably connected to the guide rod along the preset direction.

[0011] Optionally, the guide rail comprises a first guide plate, a second guide plate and a third guide plate which are sequentially fixedly connected in a U-shape, and the first guide plate, the second guide plate and the third guide plate all extend along a preset direction; the mast guide sleeve is fixed to the first guide plate and the second guide plate at the same time; the third guide plate forms the guide rod;

[0012] The hydraulic lifting and folding drilling rig mast also includes a sliding block; the sliding block is fixed to the rotator and the sliding block is slidably connected to the third guide plate, the driving end of the feed cylinder is fixed to the sliding block, and the feed cylinder is used to drive the sliding block and the rotator to move up and down along the third guide plate.

[0013] Optionally, the mast frame also includes a positioning plate; the positioning plate is fixed horizontally, and the positioning plate is used to install the hexagonal transmission shaft of the rotator, and the feed cylinder, the guide rod and the guide rail are all fixed to the positioning plate.

[0014] Optionally, the mast frame further comprises a cylinder guide sleeve fixed on the positioning plate; the feed cylinder and the third guide plate are arranged side by side and spaced apart, and the top end of the feed cylinder is passed through and fixed in the cylinder guide sleeve.

[0015] Optionally, the hydraulic lifting and folding drilling rig mast also includes a crown block assembly, a crown block pulley, a lifter and a wire rope; the crown block assembly is fixed to the top of the telescopic mast, the crown block pulley is fixed on the crown block assembly, the wire rope is wound around the crown block pulley, one end of the wire rope is connected to the lifter, and the other end of the wire rope is used to connect to the winch.

[0016] Optionally, the hydraulic lift foldable drilling rig mast also includes a bracket assembly, a support seat and a lifting cylinder; the bracket assembly is used to be fixed on the drilling rig base, the support seat is fixed to the mast frame, and the bracket assembly is connected to the support seat through a bearing; the lifting cylinder is hinged to the mast frame, and the lifting cylinder is used to pull the mast frame to rotate around the bearing to drive the entire hydraulic lift foldable drilling rig mast to switch between a vertical state and a horizontal state.

[0017] The embodiment of the utility model further provides a drilling rig, which comprises a drilling rig base and a hydraulic lifting and folding drilling rig mast, wherein the hydraulic lifting and folding drilling rig mast is fixed on the drilling rig base.

[0018] The beneficial effects of the hydraulic lifting and folding drilling rig mast and the drilling rig of the embodiment of the utility model include, for example:

[0019] A hydraulic lifting and folding drilling rig mast comprises a mast frame, a telescopic mast, a lifting cylinder, a rotator and a feed cylinder. The mast frame is used to be fixed on a drilling rig base; the telescopic mast is slidably connected to the mast frame along a preset direction; the lifting cylinder is fixed to the mast frame along a preset direction, the lifting cylinder is connected to the telescopic mast, and the lifting cylinder is used to push the telescopic mast to move up and down along the preset direction; the rotator is slidably connected to the mast frame along a preset direction, the feed cylinder is fixed to the mast frame along a preset direction, the feed cylinder is connected to the rotator, and the feed cylinder is used to push the rotator to move up and down along the preset direction.

[0020] Without reducing the functions of the existing folding mast, the structure is simplified, the mast is multifunctional, easy to operate, load and unload, and transport; at the same time, the production cost is reduced, the environmental pollution is reduced, and the disassembly, transportation and overall work efficiency are improved.

[0021] The drilling rig, including the above-mentioned hydraulic lifting and folding drilling rig mast, can improve the problem that the drilling rig lifting mast has a complex structure and needs to rely on other component assemblies to meet functional requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the first structure portion of the hydraulic lifting and folding drilling rig mast provided in this embodiment;

[0024] Figure 2 A schematic diagram of the second structure portion of the hydraulic lifting and folding drilling rig mast provided in this embodiment;

[0025] Figure 3 A front view of a hydraulic lifting and folding drilling rig mast provided in this embodiment;

[0026] Figure 4 A side view of a hydraulic lifting and folding drilling rig mast provided for this embodiment;

[0027] Figure 5 A schematic diagram of the structure of a hydraulic lifting and folding drilling rig mast from a top view provided in this embodiment;

[0028] Figure 6A schematic diagram of the structure of the hydraulic lifting and folding drilling rig mast after it is lowered provided in this embodiment;

[0029] Figure 7 A schematic diagram of the structure of the hydraulic lifting and folding drilling rig mast after it is raised provided in this embodiment;

[0030] Figure 8 A structural schematic diagram of another embodiment of the hydraulic lifting and folding drilling rig mast provided in this embodiment;

[0031] Fig. 9 for Figure 8 A side view of a hydraulically liftable and foldable drilling rig mast is shown.

[0032] Icons: 10-Hydraulic lifting and folding drilling rig mast; 100-Mast frame; 110-Mast guide sleeve; 120-Guide rail; 121-First guide plate; 122-Second guide plate; 123-Third guide plate; 130-Positioning plate; 140-Cylinder guide sleeve; 150-Guide rod; 200-Telescopic mast; 210-Lifting cylinder; 300-Slewing device; 310-Feed cylinder; 320-Hexagonal transmission shaft; 400-Sliding block; 500-Crown crane assembly; 510-Crown crane pulley; 520-Lifter; 530-Wire rope; 540-Triangle bracket; 600-Bracket assembly; 610-Support seat; 620-Lifting cylinder; 630-Bearing; 700-Upper channel steel support; 710-Lower channel steel support; 800-Base; 810-Stabilizer mounting seat. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0037] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0038] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0039] Combine the following Figures 1 to 9 The hydraulic lifting and folding drilling rig mast 10 provided in this embodiment is described in detail.

[0040] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The embodiment of the utility model provides a hydraulic lifting and folding drilling rig mast 10, including a mast frame 100, a telescopic mast 200, a lifting cylinder 210, a rotator 300 and a feed cylinder 310. The mast frame 100 is used to be fixed on a drilling rig base; the telescopic mast 200 is slidably connected to the mast frame 100 along a preset direction; the lifting cylinder 210 is fixed to the mast frame 100 along a preset direction, the lifting cylinder 210 is connected to the telescopic mast 200, and the lifting cylinder 210 is used to push the telescopic mast 200 to move up and down along the preset direction; the rotator 300 is slidably connected to the mast frame 100 along the preset direction, the feed cylinder 310 is fixed to the mast frame 100 along the preset direction, the feed cylinder 310 is connected to the rotator 300, and the feed cylinder 310 is used to push the rotator 300 to move up and down along the preset direction.

[0041] It should be noted that the "preset direction" in the text can be the vertical direction when the hydraulic lifting and folding drilling rig mast 10 is in the erected state, and also includes the direction inclined at a certain angle range relative to the vertical direction. The specific inclination angle range is set according to the actual working state of the hydraulic lifting and folding drilling rig mast 10 that can be erected.

[0042] The telescopic mast 200, the lifting cylinder 210 and the feeding cylinder 310 are all arranged in a preset direction and are connected to the mast frame 100. The lifting cylinder 210 drives the telescopic mast 200 to rise or fall to complete the extension and retraction of the mast, and the feeding cylinder 310 drives the rotator 300 to rise or fall to complete the drilling and feeding work. The rotator 300 has a main shaft of the rotator 300, the upper part of the main shaft of the rotator 300 is used to match the faucet, and the lower part of the main shaft of the rotator 300 is used to connect the drill rod.

[0043] The telescopic mast 200 and the rotator 300 are driven by hydraulic cylinders. Without reducing the existing functions, the structure is simplified, easy to operate, load and unload and carry. The same functions as the traditional folding mast can reduce the production cost, reduce environmental pollution, and improve the efficiency of disassembly, handling and overall work.

[0044] Reference Figure 1 and Figure 2 In this embodiment, the mast frame 100 includes a mast guide sleeve 110 fixed along a preset direction; the telescopic mast 200 is slidably inserted into the mast guide sleeve 110, and the telescopic mast 200 is used to move up and down along the mast guide sleeve 110.

[0045] The lifting cylinder 210 drives the telescopic mast 200 to slide up and down along the mast guide sleeve 110. The mast guide sleeve 110 has a certain length along a preset direction and is used to guide and support the telescopic mast 200. The telescopic mast 200 is prevented from tilting during the lifting process, and stability can be guaranteed while simplifying the structure.

[0046] Reference Figure 1 , Figure 2 and Figure 5 In this embodiment, the mast frame 100 also includes a guide rail 120 fixed along a preset direction; the mast guide sleeve 110 and the lifting cylinder 210 are fixed in the guide rail 120 along a preset direction, the lifting cylinder 210 is located below the telescopic mast 200, and the top end of the lifting cylinder 210 is connected to the bottom end of the telescopic mast 200.

[0047] The lifting cylinder 210 and the telescopic mast 200 are arranged in the guide rail 120. The guide rail 120 supports and protects the lifting cylinder 210 and the telescopic mast 200, thereby improving the overall strength, improving the structural stability, and improving the drilling efficiency. At the same time, it enhances the protection effect and prolongs the service life of the lifting cylinder 210 and the telescopic mast 200.

[0048] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5In this embodiment, the mast frame 100 further includes a guide rod 150 fixed along a preset direction, and the guide rod 150 is fixed to the guide rail 120; the rotator 300 is slidably connected to the guide rod 150 along the preset direction.

[0049] The rotator 300 is driven by the feed cylinder 310 to move up and down along the guide rod 150. The guide rod 150 guides and supports the rotator 300. The guide rod 150 is fixed to the guide rail 120 to improve the structural strength and the accuracy of operating the drilling rig, thereby improving efficiency.

[0050] Reference Figure 1 and Figure 5 In this embodiment, the guide rail 120 includes a first guide plate 121, a second guide plate 122 and a third guide plate 123 which are fixedly connected in sequence in a "U" shape, and the first guide plate 121, the second guide plate 122 and the third guide plate 123 all extend along a preset direction; the mast guide sleeve 110 is fixed to the first guide plate 121 and the second guide plate 122 at the same time; the third guide plate 123 forms a guide rod 150; the hydraulic lifting and folding drilling rig mast 10 also includes a sliding block 400; the sliding block 400 is fixed to the rotator 300 and the sliding block 400 is slidably connected to the third guide plate 123, the driving end of the feed cylinder 310 is fixed to the sliding block 400, and the feed cylinder 310 is used to drive the sliding block 400 and the rotator 300 to move up and down along the third guide plate 123.

[0051] The guide rail 120 and the guide rod 150 are integrally formed with a "U" cross-section, the telescopic mast 200 is slidably connected to the guide rail 120 via the mast guide sleeve 110, and the rotator 300 is connected to the guide rail 120 via the guide rod 150, so that the telescopic mast 200 and the rotator 300 are connected together, which not only simplifies the structure, reduces the manufacturing cost, and facilitates operation, loading and unloading, and transportation, but also enhances the overall strength of the structure and improves the efficiency of disassembly, transportation and overall work.

[0052] Reference Figure 1 and Figure 2 In this embodiment, the mast frame 100 also includes a positioning plate 130; the positioning plate 130 is fixed horizontally, and the positioning plate 130 is used to install the hexagonal transmission shaft 320 of the rotator 300, and the feed cylinder 310, the guide rod 150 and the guide rail 120 are all fixed to the positioning plate 130.

[0053] The positioning plate 130 connects and fixes the guide rail 120, the mast guide sleeve 110, the hexagonal transmission shaft and the guide rod 150 together, thereby simplifying the structure and enhancing the overall strength.

[0054] Reference Figure 1 and Figure 2In this embodiment, the mast frame 100 also includes a cylinder guide sleeve 140 fixed on the positioning plate 130; the feed cylinder 310 and the third guide plate 123 are arranged side by side and spaced apart, and the top end of the feed cylinder 310 is passed through and fixed in the cylinder guide sleeve 140.

[0055] The feed cylinder 310 is vertically arranged and arranged side by side with the third guide plate 123, which can realize the raising and lowering of the rotator 300 in the simplest way and also improve the operation efficiency.

[0056] Reference Figure 1 and Figure 2 In this embodiment, the hydraulic lifting and folding drilling rig mast 10 also includes a crown block assembly 500, a crown block pulley 510, a lifting device 520 and a wire rope 530; the crown block assembly 500 is fixed to the top of the telescopic mast 200, the crown block pulley 510 is fixed to the crown block assembly 500, the wire rope 530 is wound around the crown block pulley 510, one end of the wire rope 530 is connected to the lifting device 520, and the other end of the wire rope 530 is used to connect to the winch.

[0057] Specifically, the hydraulic lifting and folding drilling rig mast 10 further includes a triangular bracket 540, and the overhead travelling vehicle assembly 500 is fixed to the top of the mast through the triangular bracket 540. The triangular bracket 540 is a symmetrical structure with the mast as the center line.

[0058] The lifting device 520 is used to lift the drill pipe and drilling tools. The crane assembly 500, the crane pulley 510, the lifting device 520 and the wire rope 530 are arranged on the top of the telescopic mast 200. When the telescopic mast 200 is raised or lowered, the crane assembly 500, the crane pulley 510, the lifting device 520 and the wire rope 530 are also raised or lowered together. There is no need to set up additional structures to install the crane assembly 500, the crane pulley 510, the lifting device 520 and the wire rope 530, which simplifies the structure and improves the operation efficiency.

[0059] Reference Figure 3 and Figure 4 In this embodiment, the hydraulic lifting and folding drilling rig mast 10 also includes a bracket assembly 600, a support seat 610 and a lifting cylinder 620; the bracket assembly 600 is used to be fixed on the drilling rig base, the support seat 610 is fixed to the mast frame 100, and the bracket assembly 600 and the support seat 610 are connected through a bearing 630; the lifting cylinder 620 is hinged to the mast frame 100, and the lifting cylinder 620 is used to pull the mast frame 100 to rotate around the bearing 630, so as to drive the entire hydraulic lifting and folding drilling rig mast 10 to switch between a vertical state and a horizontal state.

[0060] Specifically, one end of the jacking cylinder 620 is used to be fixed on the drilling rig base, and the other end of the jacking cylinder 620 is hinged to the mast frame 100. During the extension and retraction process of the jacking cylinder 620, the mast frame 100 is pulled to rotate around the bearing 630.

[0061] The mast is erected and retracted by the jacking cylinder 620. When working, the bracket assembly 600 and the mast frame 100 are both in a vertical state; when not working and needing to be retracted, the jacking cylinder 620 is retracted, pulling the mast frame 100 to rotate around the bearing 630, and then the mast frame 100 lies flat and supports on the bracket assembly 600, completing the recovery.

[0062] Reference Figure 1 , Figure 2 and Figure 4 In this embodiment, the mast frame 100 is a symmetrical structure centered on the hexagonal transmission shaft. The number of the telescopic mast 200, the lifting cylinder 210, the feed cylinder 310, the mast guide sleeve 110, the guide rail 120, the guide rod 150 and the cylinder guide sleeve 140 are all two. The mast frame 100 also includes a base 800. The two guide rails 120 are symmetrically fixed on the base 800. The two mast guide sleeves 110 are respectively fixed on the two guide rails 120. The two telescopic masts 200 are respectively slidably set on the two mast guide sleeves 110. 0, two lifting cylinders 210 are respectively arranged in two guide rails 120 and are respectively connected to the telescopic mast 200, two sliding blocks 400 are respectively slidably matched with two guide rods 150, the rotator 300 is fixed between the two sliding blocks 400, two feeding cylinders 310 are symmetrically fixed on the base 800, the two feeding cylinders 310 are respectively connected to the two sliding blocks 400, the positioning plate 130 is fixed between the two mast guide sleeves 110 and the two cylinder guide sleeves 140, and the cubic transmission shaft is fixed at the center of the positioning plate 130. The upper channel steel support 700 and the lower channel steel support 710 are used below the base 800 to realize the disengagement and support of the entire hydraulic lifting and folding drilling rig mast 10 lying flat and erecting.

[0063] The symmetrical structure can enhance the overall strength of the hydraulic lifting and folding drilling rig mast 10, and can also simplify the structure, facilitate disassembly and transportation, and improve the overall working efficiency.

[0064] Reference Figure 8 and Fig. 9 , another embodiment of a hydraulic lifting and folding drilling rig mast 10 is provided, wherein the connection position of the lifting cylinder 620, the rotator 300 and the bracket assembly 600 is movable, and a centralizer mounting seat 810 is fixed at the bottom of the base 800. The centralizer mounting seat 810 can be used to install a centralizer.

[0065] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 According to a hydraulic lifting and folding drilling rig mast 10 provided in this embodiment, the working principle of the hydraulic lifting and folding drilling rig mast 10 is:

[0066] Mast erection work: When the mast is not working, it is folded and retracted to a flat state under normal conditions. The mast erection and retraction are completed by the extension and retraction of the jacking cylinder 620.

[0067] Mast folding: supported by the bracket assembly 600 and through the bearing 630, under the action of external force, the lifting cylinder 620 pushes the mast to rotate around the bearing 630 to achieve the mast vertical and folding operation.

[0068] Mast extension and retraction: When the mast is extended or retracted, the lifting cylinder 210 and the telescopic mast 200 are used to extend and retract the mast to complete the work.

[0069] Rotary drilling work: The rotary work is connected to the steering gear by the power and the cross coupling, and then the steering gear changes direction to drive the hexagonal transmission shaft 320, and then the hexagonal transmission shaft 320 rotates the rotator 300 gearbox to transmit the rotary work. Under the rotary work, the feed cylinder 310 extends, shrinks and slides along the guide rod 150 to complete the drilling work.

[0070] Lifting rod work: The lifting rod work is that the lifting device 520 is connected to the required lifting object and then the wire rope 530 is guided by the crown block pulley 510, and the wire rope 530 is changed to connect with the winch to control the up and down lifting of the wire rope 530.

[0071] Functions of the wire rope 530 and the overhead crane: The drill rod and drilling tools can be quickly lifted and lowered during operation. The combined use of the wire rope 530, the overhead crane and the feed cylinder 310 of the rotator 300 can increase the lifting force and improve the comprehensive processing capability of buried and stuck drills.

[0072] The hydraulic lifting and folding drilling rig mast 10 provided in this embodiment has at least the following advantages:

[0073] The lifting cylinder 210 drives the telescopic mast 200 to rise or fall to complete the extension and retraction of the mast, and the feed cylinder 310 drives the rotator 300 to rise or fall to complete the drilling work. The telescopic mast 200 and the rotator 300 are both driven by hydraulic cylinders and do not require the aid of other component assemblies. Without reducing the function of the existing folding mast, the structure is simplified, multi-functional, easy to operate, load and unload, and carry; at the same time, it reduces production costs, reduces environmental pollution, and improves disassembly, transportation, and overall work efficiency.

[0074] The embodiment of the utility model further provides a drilling rig. The drilling rig comprises a drilling rig base and a hydraulic lifting and folding drilling rig mast 10, wherein the hydraulic lifting and folding drilling rig mast 10 is fixed on the drilling rig base. The drilling rig lifting mast is complex in structure and needs other components to complete the functional requirements.

[0075] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A hydraulic lifting and folding drilling rig mast, characterized in that: include: A mast frame (100), wherein the mast frame (100) is used to be fixed on a drilling rig base; A telescopic mast (200), wherein the telescopic mast (200) is slidably connected to the mast frame (100) along a preset direction; A lifting cylinder (210), wherein the lifting cylinder (210) is fixed to the mast frame (100) along a preset direction, the lifting cylinder (210) is connected to the telescopic mast (200), and the lifting cylinder (210) is used to push the telescopic mast (200) to move up and down along the preset direction; A rotator (300) and a feed cylinder (310); the rotator (300) is slidably connected to the mast frame (100) along a preset direction, the feed cylinder (310) is fixed to the mast frame (100) along a preset direction, the feed cylinder (310) is connected to the rotator (300), and the feed cylinder (310) is used to push the rotator (300) to move up and down along the preset direction.

2. The hydraulic lifting and folding drilling rig mast according to claim 1 is characterized in that: The mast frame (100) comprises a mast guide sleeve (110) fixed along a preset direction; the telescopic mast (200) is slidably arranged in the mast guide sleeve (110), and the telescopic mast (200) is used to move up and down along the mast guide sleeve (110).

3. The hydraulic lifting and folding drilling rig mast according to claim 2 is characterized in that: The mast frame (100) further comprises a guide rail (120) fixed along a preset direction; the mast guide sleeve (110) and the lifting cylinder (210) are fixed in the guide rail (120) along a preset direction; the lifting cylinder (210) is located below the telescopic mast (200); and the top end of the lifting cylinder (210) is connected to the bottom end of the telescopic mast (200).

4. The hydraulic lifting and folding drilling rig mast according to claim 3 is characterized in that: The mast frame (100) further comprises a guide rod (150) fixed along a preset direction, wherein the guide rod (150) is fixed to the guide rail (120); and the rotator (300) is slidably connected to the guide rod (150) along the preset direction.

5. The hydraulic lifting and folding drilling rig mast according to claim 4 is characterized in that: The guide rail (120) comprises a first guide plate (121), a second guide plate (122) and a third guide plate (123) which are fixedly connected in sequence and are in a U-shape, wherein the first guide plate (121), the second guide plate (122) and the third guide plate (123) all extend along a preset direction; the mast guide sleeve (110) is fixed to the first guide plate (121) and the second guide plate (122) at the same time; the third guide plate (123) forms the guide rod (150); The hydraulic lifting and folding drilling rig mast also includes a sliding block (400); the sliding block (400) is fixed to the rotator (300) and the sliding block (400) is slidably connected to the third guide plate (123); the driving end of the feed cylinder (310) is fixed to the sliding block (400), and the feed cylinder (310) is used to drive the sliding block (400) and the rotator (300) to move up and down along the third guide plate (123).

6. The hydraulic lifting and folding drilling rig mast according to claim 5, characterized in that: The mast frame (100) further comprises a positioning plate (130); the positioning plate (130) is fixed horizontally, and the positioning plate (130) is used to install the hexagonal transmission shaft (320) of the rotator (300); the feed cylinder (310), the guide rod (150) and the guide rail (120) are all fixed to the positioning plate (130).

7. The hydraulic lifting and folding drilling rig mast according to claim 6, characterized in that: The mast frame (100) further comprises a cylinder guide sleeve (140) fixed on the positioning plate (130); the feed cylinder (310) and the third guide plate (123) are arranged side by side and spaced apart, and the top end of the feed cylinder (310) is passed through and fixed in the cylinder guide sleeve (140).

8. The hydraulic lifting and folding drilling rig mast according to any one of claims 1 to 7, characterized in that: The hydraulic lifting and folding drilling rig mast also includes a crown block assembly (500), a crown block pulley (510), a lifting device (520) and a steel wire rope (530); the crown block assembly (500) is fixed to the top of the telescopic mast (200), the crown block pulley (510) is fixed to the crown block assembly (500), the steel wire rope (530) is wound around the crown block pulley (510), one end of the steel wire rope (530) is connected to the lifting device (520), and the other end of the steel wire rope (530) is used to be connected to a winch.

9. The hydraulic lifting and folding drilling rig mast according to any one of claims 1 to 7, characterized in that: The hydraulic lifting and folding drilling rig mast also includes a bracket assembly (600), a support seat (610) and a lifting cylinder (620); the bracket assembly (600) is used to be fixed on the drilling rig base, the support seat (610) is fixed to the mast frame (100), and the bracket assembly (600) and the support seat (610) are connected via a bearing (630); the lifting cylinder (620) is hinged to the mast frame (100), and the lifting cylinder (620) is used to pull the mast frame (100) to rotate around the bearing (630) to drive the entire hydraulic lifting and folding drilling rig mast to switch between a vertical state and a horizontal state.

10. A drilling rig, characterized in that: The drilling rig comprises a drilling rig base and a hydraulically liftable and foldable drilling rig mast as described in any one of claims 1 to 9, and the hydraulically liftable and foldable drilling rig mast is fixed on the drilling rig base.

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