Drilling rig and energy-saving reducing device thereof

Abstract

The present invention discloses a drilling rig and an energy-saving diameter reducing device thereof, the energy-saving diameter reducing device comprising: an energy-saving drive sleeve assembly and a clamping sleeve assembly, the energy-saving drive sleeve assembly comprising a drive sleeve body, an outer guide positioning portion arranged on the outer wall of the drive sleeve body, and an inner guide positioning portion arranged on the inner wall of the drive sleeve body; the outer guide positioning portion is used to cooperate with the inner wall of the rotary drilling power head assembly so that the energy-saving drive sleeve assembly is fixed relative to the rotary drilling power head assembly; the inner guide positioning portion cooperates with the outer wall of the drill rod assembly so that the drill rod assembly is locked or unlocked relative to the energy-saving drive sleeve assembly. During use, when the drill rod assembly does not need to be fully extended, the outer rod of the drill rod assembly can be disassembled to reduce energy consumption during drilling; in addition, when the drilling depth is limited, after disassembling the outer rod of the drill rod assembly, the influence of the outer diameter of the outer rod on the diameter of the borehole can be avoided, which is conducive to the excavation of holes with smaller diameters.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling equipment, and more specifically, to an energy-saving diameter-reducing device. In addition, the present invention also relates to a drilling rig comprising the energy-saving diameter-reducing device. Background Art

[0002] In the prior art, a drill rod assembly is generally provided with multiple sections of drill rods. During the drilling process, when the drilling depth is shallow, it may not be necessary to extend all the drill rods, but only part of the drill rods. For example, during the use of a four-section drill rod assembly, there is a situation where only the outer rod, the second rod, and the third rod need to be extended, and the core rod is not extended. During the drilling process, an unnecessary weight of the drill rod is added, which increases the energy consumption during the lifting and rotation processes.

[0003] Furthermore, when drilling deeper, the minimum hole diameter is generally determined by the diameter of the outermost rod of the drill pipe. Therefore, to drill a smaller hole, the outer rod diameter needs to be minimized. However, a smaller outer rod diameter reduces the overall strength of the drill pipe, and the drill pipe outer diameter determines the specifications of the rotary drilling rig, so a smaller rotary drilling rig is often required.

[0004] And, as Figure 1 、 2 As shown, in the prior art, since the outer rod of the drill rod assembly needs to be able to axially extend and retract relative to the rotary drilling power head assembly, it also needs to be able to rotate together. Therefore, a variable width chute 01 and an existing pressure plate 03 are provided. When in the pressurized state, as shown in FIG. Figure 1 As shown, one end of the existing key plate 02 is brought into contact with the existing pressure plate 03. In the soil-shaking state, the existing key plate 02 moves to one side of the existing pressure plate 03, which may easily cause misoperation when shaking off the soil. The existing key plate 02 shakes off the soil in the pressurized state, and the circumferential rotation gap is large, resulting in a large impact force. This position is prone to damage and cracking.

[0005] In summary, how to provide an energy-saving reducing device that can reduce energy consumption during the use of a drill pipe is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide an energy-saving reducing device. During use, when the drill rod assembly does not need to be fully extended, the outer rod of the drill rod assembly can be disassembled to reduce the energy consumption during the drilling process; in addition, when the drilling depth is limited, after disassembling the outer rod of the drill rod assembly, the influence of the outer diameter of the outer rod on the diameter of the drill hole can be avoided, which is conducive to the excavation of holes with smaller diameters.

[0007] Another object of the present invention is to provide a drilling rig comprising the energy-saving reducing device.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] An energy-saving reducing device comprises: an energy-saving driving sleeve assembly and a clamping sleeve assembly for fixing the energy-saving driving sleeve assembly to a rotary drilling power head assembly.

[0010] The energy-saving driving sleeve assembly includes a driving sleeve body, an outer guide positioning portion provided on the outer wall of the driving sleeve body, and an inner guide positioning portion provided on the inner wall of the driving sleeve body;

[0011] The outer guide positioning portion is used to cooperate with the inner wall of the rotary drilling power head assembly so that the energy-saving drive sleeve assembly is fixed relative to the rotary drilling power head assembly; the inner guide positioning portion cooperates with the outer wall of the drill rod assembly so that the drill rod assembly is locked or unlocked relative to the energy-saving drive sleeve assembly.

[0012] Preferably, the outer guide positioning portion includes a slide groove provided on the outer peripheral wall of the driving sleeve body and a pressure plate provided at the lower end of the slide groove, and the pressure plate is provided with a contact surface for abutting against the rotary drilling power head assembly;

[0013] The length direction of the sliding groove is arranged along the axial direction of the driving sleeve body, and the number of the sliding grooves is at least two.

[0014] Preferably, the inner guide positioning portion includes at least two inner key plates for cooperating with the grooves on the outer wall of the drill rod assembly, and the inner key plates are protruded along the axial direction of the drive sleeve body and are arranged on the inner wall surface of the drive sleeve body.

[0015] Preferably, the sliding groove and the inner key plate are evenly distributed along the circumference of the drive sleeve body.

[0016] Preferably, the upper end of the driving sleeve body is provided with a first slot for cooperating with a lifting tool, and the first slot is provided with a positioning pin slot for limiting the circumferential installation position of the lifting tool;

[0017] The first clamping groove is arranged along the circumferential direction of the driving sleeve body, and the positioning pin groove is arranged along the axial direction of the driving sleeve body.

[0018] Preferably, the ferrule assembly includes a ferrule body, a positioning ring for contacting the upper end surface of the rotary drilling power head assembly, and a clamping portion for engaging with or releasing the energy-saving drive sleeve assembly;

[0019] The positioning ring is arranged at the bottom end of the ferrule body, and the clamping portion is arranged on the outer peripheral side wall of the ferrule body.

[0020] Preferably, the clamping portion includes at least two clamping grooves arranged on the outer wall surface of the clamping sleeve body, a clamping member and a clamping pin that cooperate with the clamping grooves, and the clamping member is provided with a pin hole that cooperates with the clamping pin; the driving sleeve body is provided with a second clamping groove that cooperates with the clamping member.

[0021] Preferably, it further comprises a follower sleeve assembly, one end of which is connected to the drill rod assembly, and the other end of which is provided with a flange connection portion.

[0022] Preferably, the follower sleeve assembly includes a shock-absorbing pad and a semi-annular clamping plate for clamping connection with the drill rod assembly.

[0023] A drilling rig comprises a rotary drilling power head assembly, a drill rod assembly and any of the above energy-saving reducing devices.

[0024] When using the energy-saving reducing device provided by the present invention, it is first necessary to hoist the energy-saving drive sleeve assembly from the lower part of the rotary drilling power head assembly into the rotary drilling power head assembly using a hoist, and connect the energy-saving drive sleeve assembly to the clamping sleeve assembly so that the outer guide positioning portion cooperates with the inner wall of the rotary drilling power head assembly, and the energy-saving drive sleeve assembly is fixed relative to the rotary drilling power head assembly; then, the drill rod assembly is installed so that the inner guide positioning portion cooperates with the outer wall of the drill rod assembly, and the drill rod assembly is locked or unlocked relative to the energy-saving drive sleeve assembly. By controlling the rotation of the rotary drilling power head assembly, the energy-saving drive sleeve assembly and the drill rod assembly can be driven to rotate, and the drill rod assembly can be telescopically moved axially relative to the energy-saving drive sleeve assembly.

[0025] Compared with the prior art, in the process of using the energy-saving reducing device provided by the present invention, when the required drilling depth is relatively shallow and all drill rods do not need to be extended, at least one drill rod in the drill rod assembly can be disassembled, the remaining drill rods can be reassembled, and the assembled drill rod assembly can be coordinated with the energy-saving reducing device. During the drilling process, only the necessary drill rods are driven to rotate, which reduces the weight of the drill rod assembly that needs to be driven to rotate or extend during the drilling process, reduces energy consumption, and is conducive to saving energy consumption. In addition, during the drilling process, since the drilling diameter is related to the diameter of the outermost drill rod, when the outermost outer rod is removed, the applicable range of the drill rod for drilling holes with smaller diameters can be expanded. During use, only the outer rod of the drill rod assembly needs to be disassembled, and there is no need to change the model specifications of the rotary drilling rig. When the original drill rod assembly needs to be used normally, only the energy-saving reducing device needs to be disassembled and the outer rod of the drill rod assembly needs to be reinstalled. The use process is more convenient.

[0026] In addition, the present invention also provides a drilling rig including the above-mentioned energy-saving reducing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0028] Figure 1 It is a structural schematic diagram of the matching position of the existing key plate and the widened slide groove in the pressurized state in the prior art;

[0029] Figure 2 It is a structural diagram of the matching position of the existing key plate and the widened chute in the soil throwing state in the prior art;

[0030] Figure 3 This is a schematic diagram of the structure of the energy-saving reducing device provided in this solution installed on the rotary drilling power head assembly;

[0031] Figure 4 for Figure 3 Schematic diagram of the matching position of the power head key plate and the chute when the middle structure is in the pressurized state and the soil-throwing state;

[0032] Figure 5 It is a structural diagram of the energy-saving drive assembly;

[0033] Figure 6 It is a structural diagram of the ferrule assembly;

[0034] Figure 7 It is a structural diagram of the follower sleeve assembly;

[0035] Figure 8 This is a schematic diagram of the structure of the drill rod assembly after assembly of four drill rod sections;

[0036] Figure 9 is a structural diagram of the outer rod;

[0037] Figure 10 This is a schematic diagram of the structure of the second section of drill pipe;

[0038] Figure 11 This is a structural diagram of the third section of drill pipe;

[0039] Figure 12 This is a structural diagram of the fourth section of drill pipe;

[0040] Figure 13 It is a structural diagram of the spreader assembly.

[0041] Figure 1-2 middle:

[0042] 01 is the widened chute, 02 is the existing key plate, and 03 is the existing pressure plate;

[0043] Figure 3-13 middle:

[0044] 1 is the energy-saving drive sleeve assembly, 101 is the positioning pin groove, 102 is the first card slot, 103 is the inner key plate, 104 is the second card slot, 105 is the slide, 106 is the pressure plate, 107 is the upper end head, 108 is the steel pipe, 109 is the key bar, 110 is the lower end head, 2 is the card sleeve assembly, 21 is the card sleeve body, 22 is the card pin, 23 is the card plate, 3 is the follower sleeve assembly, 31 is the follower sleeve body, 301 is the law The flange connection part, 32 is a semi-annular clamping plate, 33 is a shock-absorbing pad, 4 is a sling assembly, 41 is a sling body, 42 is a sling pin, 5 is a rotary drilling power head assembly, 51 is a power head key plate, 6 is a drill rod assembly, 61 is an outer rod, 62 is the second section of the drill rod, 621 is an annular clamping groove, 63 is the third section of the drill rod, 64 is the fourth section of the drill rod, 65 is a water tray, 66 is a rubber pad, 67 is a spring seat, and 68 is an assembly pin. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] The core of the present invention is to provide an energy-saving diameter-reducing device. During use, when the drill rod assembly does not need to be fully extended, the outer rod of the drill rod assembly can be removed, reducing energy consumption during drilling. In addition, when drilling depth is limited, removing the outer rod of the drill rod assembly can also prevent the outer diameter of the outer rod from affecting the diameter of the drill hole, facilitating the excavation of smaller diameter holes. Another core of the present invention is to provide a drilling rig that includes the above-mentioned energy-saving diameter-reducing device.

[0047] Please refer to Figure 3-13 .

[0048] This specific embodiment discloses an energy-saving reducing device, comprising: an energy-saving driving sleeve assembly 1 and a clamping sleeve assembly 2 for fixing the energy-saving driving sleeve assembly 1 to a rotary drilling power head assembly 5.

[0049] The energy-saving driving sleeve assembly 1 includes a driving sleeve body, an outer guide positioning portion provided on the outer wall of the driving sleeve body, and an inner guide positioning portion provided on the inner wall of the driving sleeve body;

[0050] The outer guide positioning portion is used to cooperate with the inner wall of the rotary drilling power head assembly 5 so that the energy-saving drive sleeve assembly 1 is fixed relative to the rotary drilling power head assembly 5; the inner guide positioning portion cooperates with the outer wall of the drill rod assembly 6 so that the drill rod assembly 6 is locked or unlocked relative to the energy-saving drive sleeve assembly 1. Here, the locking or unlocking of the drill rod assembly 6 relative to the energy-saving drive sleeve assembly 1 refers to that in the pressurized state, the drill rod assembly 6 is locked relative to the energy-saving drive sleeve assembly 1, so that one end of the inner key plate 103 abuts against the pressure plate in the drill rod assembly 6, and the drill rod assembly 6 is axially fixed relative to the energy-saving drive sleeve assembly 1; in the soil-throwing state, the drill rod assembly 6 is unlocked relative to the energy-saving drive sleeve assembly 1, the inner key plate 103 moves to one side of the pressure plate in the drill rod assembly 6, and the drill rod assembly 6 is axially movable relative to the energy-saving drive sleeve assembly 1.

[0051] It should be noted that, during the setting process, the driving sleeve body can be set to a steel pipe 108. Of course, it can also be other structures that meet the requirements, which will not be elaborated here.

[0052] When using the energy-saving reducing device provided in this specific embodiment, it is first necessary to hoist the energy-saving drive sleeve assembly 1 from the lower part of the rotary drilling power head assembly 5 into the rotary drilling power head assembly 5 using a hoist, and connect the energy-saving drive sleeve assembly 1 with the clamping sleeve assembly 2 so that the outer guide positioning portion cooperates with the inner wall of the rotary drilling power head assembly 5, and the energy-saving drive sleeve assembly 1 is fixed relative to the rotary drilling power head assembly 5; then, the drill rod assembly 6 is installed so that the inner guide positioning portion cooperates with the outer wall of the drill rod assembly 6, and the drill rod assembly 6 is locked or unlocked relative to the energy-saving drive sleeve assembly 1. By controlling the rotation of the rotary drilling power head assembly 5, the energy-saving drive sleeve assembly 1 and the drill rod assembly 6 can be driven to rotate, and the drill rod assembly 6 can be telescopically moved axially relative to the energy-saving drive sleeve assembly 1.

[0053] Compared with the prior art, in the process of using the energy-saving reducing device provided by this specific embodiment, when the required drilling depth is shallow and all drill rods do not need to be extended, at least one section of the drill rod in the drill rod assembly 6 can be disassembled, the remaining drill rods can be reassembled, and the assembled drill rod assembly 6 can be coordinated with the energy-saving reducing device. During the drilling process, only the necessary drill rods are driven to rotate, which reduces the weight of the drill rod assembly 6 that needs to be driven to rotate or extend during the drilling process, reduces energy consumption, and is conducive to saving energy consumption. In addition, during the drilling process, since the drilling diameter is related to the diameter of the outermost drill rod, when the outermost outer rod 61 is removed, the applicable range of the drill rod for drilling holes with smaller diameters can be expanded, and during use, only the outer rod 61 of the drill rod assembly 6 needs to be disassembled, and there is no need to change the model specifications of the rotary drilling rig. When the original drill rod assembly 6 needs to be used normally, only the energy-saving reducing device needs to be disassembled and the outer rod 61 of the drill rod assembly 6 needs to be reinstalled; the use process is more convenient.

[0054] It should be noted that, in the process of using the energy-saving reducing device provided in this specific embodiment, the outer rod 61 of the original drill rod assembly 6 can be disassembled, for example, Figure 8 As shown, the original drill rod assembly 6 consists of four sections of drill rods, including an outer rod 61, a second section of drill rod 62, a third section of drill rod 63 and a fourth section of drill rod 64. The outer rod 61 can be disassembled, and the remaining second section of drill rod 62, third section of drill rod 63 and fourth section of drill rod 64 can be assembled and connected to the energy-saving reducing device. Alternatively, the outer rod 61 and the second section of drill rod 62 can be disassembled, and the remaining third section of drill rod 63 and fourth section of drill rod 64 can be assembled and connected to the energy-saving reducing device. The specific details will be determined based on actual conditions and will not be elaborated here.

[0055] On the basis of the above embodiment, the external guide positioning portion can include a slide groove 105 arranged on the outer peripheral wall of the drive sleeve body and a pressure plate 106 arranged at the lower end of the slide groove 105, and the pressure plate 106 is provided with a contact surface for abutting against the rotary drilling power head assembly 5; the length direction of the slide groove 105 is arranged along the axial direction of the drive sleeve body, and the number of the slide grooves 105 is at least two.

[0056] like Figure 5 As shown, the outer wall of the driving sleeve body is provided with a key bar 109, and a slide groove 105 is formed between the two key bars 109. Of course, the slide groove 105 can also be arranged in other ways, which will not be described here.

[0057] During the assembly process, a power head key plate 51 is provided on the inner wall of the rotary drilling power head assembly 5. When the energy-saving reducing device is installed into the rotary drilling power head assembly 5 from the bottom, the power head key plate 51 cooperates with the slide groove 105 until the lower end of the power head key plate 51 abuts against the contact surface of the pressure plate 106, and then the clamping sleeve assembly 2 is connected to the energy-saving drive sleeve assembly 1, so that the clamping sleeve assembly 2, the energy-saving drive sleeve assembly 1 and the rotary drilling power head assembly 5 are relatively fixed.

[0058] Compared with the setting of the widened chute 105 in the prior art, the chute 105 in this specific embodiment needs to cooperate with the rotary drilling power head assembly 5 in the width direction, so that the rotary drilling power head assembly 5 is fixed in the circumferential direction relative to the energy-saving drive sleeve assembly 1, and is in the pressurized state and the soil-throwing state. Figure 4 The position shown ensures that there will be no misoperation when throwing away the soil, the circumferential rotation gap is small, so the impact force is small, and this position is not easy to be damaged or cracked.

[0059] Based on the above embodiment, the inner guide positioning portion can include at least two inner key plates 103 for cooperating with the grooves on the outer wall of the drill rod assembly 6. The inner key plates 103 are protruded axially along the inner wall surface of the drive sleeve body.

[0060] During the assembly process, the inner key plate 103 of the energy-saving drive sleeve assembly 1 cooperates with the groove on the outer wall of the drill rod assembly 6, so that the energy-saving drive sleeve assembly 1 and the drill rod assembly 6 are relatively locked or unlocked.

[0061] Preferably, the slide grooves 105 and the inner key plates are evenly distributed along the circumference of the drive sleeve body; the number of the slide grooves 105 and the inner key plates can be set to be the same or different, which is determined according to actual conditions.

[0062] On the basis of the above embodiment, in order to facilitate the installation of the energy-saving drive sleeve assembly 1, a first card slot 102 for cooperating with a lifting tool can be provided at the upper end of the drive sleeve body. The first card slot 102 is provided with a positioning pin slot 101 for limiting the circumferential installation position of the lifting tool.

[0063] The first clamping groove 102 is arranged along the circumferential direction of the driving sleeve body, and the positioning pin groove 101 is arranged along the axial direction of the driving sleeve body.

[0064] The specific location and number of the first card slot 102 and the positioning pin slot 101 need to be set according to the structure of the lifting tool, and need to be able to successfully lift the energy-saving drive set assembly 1, which will not be elaborated here.

[0065] like Figure 13 As shown, the sling assembly 4 includes a sling body 41 and a sling pin 42. The sling body 41 is provided with three groups of clamping strips, each group of clamping strips is provided with a corresponding sling pin 42, and each sling pin 42 is provided with a corresponding movable iron chain; Figure 5 As shown, the upper end of the steel pipe 108 is provided with an annular upper end head 107, and the inner wall of the upper end head 107 is provided with a first card groove 102 along the axial direction, and the first card groove 102 is an annular inner groove, and each first card groove 102 is correspondingly provided with a positioning pin groove 101, and the positioning pin groove 101 is arranged along the axial direction of the energy-saving drive set assembly 1; during the hoisting process, the sling assembly 4 is first placed on the energy-saving drive set assembly 1, and the sling assembly 4 is lowered to the upper part of the energy-saving drive set assembly 1 by moving the sling body 41, and rotated until the card strip is matched with the first groove, and then the sling pin shaft 42 is movably connected to the sling body 41 through the iron chain, and the sling pin shaft 42 is matched with the positioning pin groove 101 to complete the connection between the hoisting assembly and the energy-saving drive set assembly 1. At this time, by driving the sling assembly 4 to move, the energy-saving drive set assembly 1 can be driven to move.

[0066] Preferably, an annular lower end head 110 may be provided at the lower portion of the steel pipe 108 .

[0067] Of course, the spreader assembly 4 is not limited to Figure 13 The structure shown can also be any other structure that meets the requirements.

[0068] On the basis of the above embodiment, the ferrule assembly 2 may include a ferrule body 21, a positioning ring for contacting the upper end surface of the rotary drilling power head assembly 5, and a clamping portion for engaging or releasing the energy-saving drive sleeve assembly 1;

[0069] The positioning ring is arranged at the bottom end of the ferrule body 21 , and the clamping portion is arranged on the outer peripheral side wall of the ferrule body 21 .

[0070] like Figure 3 As shown, the outer diameter of the positioning ring is larger than the inner diameter of the rotary drilling head assembly 5, so that the ferrule assembly 2 can be set on the upper end face of the rotary drilling head assembly 5. During the assembly process, first, the ferrule assembly 2 needs to be set on the upper end face of the rotary drilling head assembly 5 and preliminarily positioned; after the energy-saving drive sleeve assembly 1 is hoisted into the interior of the rotary drilling head assembly 5, the ferrule assembly 2 is rotated so that the clamping part is clamped to the corresponding position in the energy-saving drive sleeve assembly 1, thereby realizing a relatively fixed connection among the ferrule assembly 2, the energy-saving drive sleeve assembly 1 and the rotary drilling head assembly 5.

[0071] Furthermore, the clamping part can include at least two clamping grooves arranged on the outer wall surface of the clamping sleeve body 21, a clamping member 23 and a clamping pin 22 that cooperate with the clamping grooves, and the clamping member 23 is provided with a pin hole that cooperates with the clamping pin 22; the driving sleeve body is provided with a second clamping groove 104 that cooperates with the clamping member 23.

[0072] like Figure 5 、 Figure 6 As shown, during the assembly process, after the energy-saving drive sleeve assembly 1 is hoisted into the interior of the rotary drilling power head assembly 5, the clamping sleeve assembly 2 is rotated so that the card slot cooperates with the second card slot 104. At this time, the card plate 23 is inserted into the card slot, and the card plate 23 is extended into the second card slot 104. Then the bayonet 22 is inserted into the pin hole of the card plate 23, and the card plate 23 is positioned to connect the energy-saving drive sleeve assembly 1 with the clamping sleeve assembly 2; after the assembly is completed, the pressure plate 106 in the energy-saving drive sleeve assembly 1 is abutted against the power head key plate 51 of the rotary drilling power head assembly 5, and the lower surface of the positioning ring of the clamping sleeve assembly 2 is tightly fitted with the upper end face of the rotary drilling power head assembly 5, so that the clamping sleeve assembly 2, the energy-saving drive sleeve assembly 1 and the rotary drilling power head assembly 5 are relatively fixedly connected.

[0073] Based on the above embodiment, a follower sleeve assembly 3 may be further included. One end of the follower sleeve assembly 3 is connected to the drill rod assembly 6, and the other end of the follower sleeve assembly 3 is provided with a flange connection portion 301. The follower sleeve assembly 3 includes a follower sleeve body 31, a shock-absorbing pad 33, and a semi-annular clamping plate 32 for clamping connection with the drill rod assembly 6. The semi-annular clamping plate 32 is provided on the outer periphery of the follower sleeve body 31, and the shock-absorbing pad 33 is provided at the connection between the follower sleeve body 31 and the drill rod assembly 6.

[0074] During use, the semi-annular clamping plate 32 is engaged with the annular clamping groove 621 of the second drill rod section 62, and the flange connection portion 301 is used to connect to the sliding lifting device at the top of the positioning drill rod assembly 6. The provision of the shock-absorbing pad 33 can provide a shock-absorbing and buffering effect. Therefore, the follower sleeve assembly 3 can cooperate with the rotary drilling power head assembly 5 to assist in positioning, guiding, and shock absorption.

[0075] In another specific embodiment, the original drill rod assembly 6 is assembled as follows Figure 8 As shown, the drill pipe comprises four sections. During the drilling process, the outer rod 61 does not need to be extended. Therefore, only the second section 62, the third section 63 and the fourth section 64 of the drill pipe can be used during drilling. The specific steps are as follows:

[0076] Step 1: Disassemble the outer rod 61 of the original drill rod assembly 6, and reassemble the remaining second drill rod 62, third drill rod 63 and fourth drill rod 64, and replace the new water pan 65, rubber pad 66, spring seat 67 and assembly pin 68;

[0077] Step 2: Insert the semi-annular clamping plate 32 of the follower assembly 3 into the annular clamping groove 621 at the top of the new drill rod assembly 6 to fix the follower assembly 3 to the drill rod assembly 6. The flange connection portion 301 is connected to the flange of the disassembled follower frame on the rotary drill by bolts, and the disassembled follower frame, follower assembly 3 and drill rod assembly 6 are fixed together.

[0078] Step 3: Use the rotary drilling auxiliary winch to hoist the ferrule assembly 2 onto the upper surface of the rotary drilling power head assembly 5 and position it;

[0079] Step 4: Connect the spreader assembly 4 to the energy-saving drive assembly 1, lower the spreader body 41 to the upper part of the energy-saving drive assembly 1, rotate the clamping strip of the spreader body 41 into the first groove 102, where the first groove 102 is an annular inner groove, and connect the bayonet 22 to the spreader body 41 through an iron chain. Insert the bayonet 22 into the positioning pin groove 101 to complete the connection;

[0080] Step 5: Lift the sling assembly 4 from directly below the rotary drilling head assembly 5 and drive the energy-saving drive sleeve assembly 1 to be installed into the rotary drilling head assembly 5. The chute 105 engages with the power head key plate 51 inside the power head. The power head key plate 51 stops rising when it approaches the contact surface of the pressure plate 106. Insert the clamping plate 23 into the second clamping groove 104, which can be a square clamping groove, and insert the latch 22 into the clamping plate 23. This completes the installation and connection of the energy-saving drive sleeve assembly 1, the clamping sleeve assembly 2, and the rotary drilling head assembly 5.

[0081] Step 6: Pull out the latch 22, rotate and lift the lifting sling assembly 4, and remove the lifting sling assembly 4;

[0082] Step 7: First, hoist the drill rod assembly 6 and install the disassembled follower frame into the drilling mast guide rail, aligning the guide rail mounting position on the follower frame with the mast guide rail. Then, install the drill rod assembly 6 into the energy-saving drive sleeve assembly 1, and circumferentially position the inner key plate 103 with the slide groove on the drill rod.

[0083] Step eight, after the rotary drilling rig is ready for startup, drilling is performed according to a conventional operating procedure. During the drilling process, the energy-saving drive sleeve assembly 1 and the rotary drilling power head assembly 5 are relatively fixed.

[0084] In addition to the above-mentioned energy-saving reducing device, the present invention also provides a drilling rig including the energy-saving reducing device disclosed in the above-mentioned embodiment, the drilling rig includes a rotary drilling power head assembly, a drill rod assembly 6 and any of the above-mentioned energy-saving reducing devices. For the structures of other parts of the drilling rig, please refer to the prior art and will not be repeated in this article.

[0085] The first, second, third and fourth in the first slot 102 and the second slot 104, the second section of drill rod 62, the third section of drill rod 63 and the fourth section of drill rod 64 mentioned in this application document are only for distinguishing the different positions and there is no order of precedence.

[0086] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. Any combination of all the embodiments provided by the present invention is within the scope of protection of this invention and will not be described in detail here.

[0087] The above describes in detail the drilling rig and its energy-saving reducing device provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An energy-saving reducing device, characterized in that: include: An energy-saving drive sleeve assembly (1) and a clamping sleeve assembly (2) for fixing the energy-saving drive sleeve assembly (1) to a rotary drilling power head assembly (5), The energy-saving drive sleeve assembly (1) comprises a drive sleeve body, an outer guide positioning portion arranged on the outer wall of the drive sleeve body, and an inner guide positioning portion arranged on the inner wall of the drive sleeve body; The outer guide positioning portion is used to cooperate with the inner wall of the rotary drilling power head assembly (5) so that the energy-saving drive sleeve assembly (1) is fixedly arranged relative to the rotary drilling power head assembly (5); the inner guide positioning portion cooperates with the outer wall of the drill rod assembly (6) so that the drill rod assembly (6) is locked or unlocked relative to the energy-saving drive sleeve assembly (1); The outer guide positioning portion comprises a slide groove (105) provided on the outer peripheral wall of the driving sleeve body and a pressure plate (106) provided at the lower end of the slide groove (105), wherein the pressure plate (106) is provided with a contact surface for abutting against the rotary drilling power head assembly (5); The length direction of the sliding groove (105) is arranged along the axial direction of the driving sleeve body, and the number of the sliding grooves (105) is at least two; When the drill rod assembly (6) includes an outer rod (61), a second drill rod section (62), a third drill rod section (63), and a fourth drill rod section (64), and the outer rod (61) is disassembled, the remaining second drill rod section (62), the third drill rod section (63), and the fourth drill rod section (64) are assembled and connected to the energy-saving reducing device; When the drill rod assembly (6) includes an outer rod (61), a second drill rod section (62), a third drill rod section (63), and a fourth drill rod section (64), and the outer rod (61) and the second drill rod section (62) are disassembled, the remaining third drill rod section (63) and the fourth drill rod section (64) are assembled and connected to the energy-saving reducing device; The upper end of the drive sleeve body is provided with a first clamping groove (102) for cooperating with a lifting tool, and the first clamping groove (102) is provided with a positioning pin groove (101) for limiting the circumferential installation position of the lifting tool; The first clamping groove (102) is arranged along the circumference of the driving sleeve body, and the positioning pin groove (101) is arranged along the axial direction of the driving sleeve body; The ferrule assembly (2) comprises a ferrule body (21), a positioning ring for contacting the upper end surface of the rotary drilling power head assembly (5), and a clamping portion for engaging or releasing the energy-saving drive sleeve assembly (1); The positioning ring is arranged at the bottom end of the ferrule body (21), and the clamping portion is arranged on the outer peripheral side wall of the ferrule body (21).

2. The energy-saving diameter-reducing device according to claim 1, characterized in that: The inner guide positioning portion comprises at least two inner key plates (103) for cooperating with grooves on the outer wall of the drill rod assembly (6); the inner key plates (103) are protruding along the axial direction of the drive sleeve body and are arranged on the inner wall surface of the drive sleeve body.

3. The energy-saving diameter-reducing device according to claim 2, characterized in that: The sliding groove (105) and the inner key plate (103) are evenly distributed along the circumference of the drive sleeve body.

4. The energy-saving diameter-reducing device according to claim 1, characterized in that: The clamping portion includes at least two clamping grooves arranged on the outer wall surface of the clamping sleeve body (21), a clamping member (23) cooperating with the clamping grooves, and a clamping pin (22), wherein the clamping member (23) is provided with a pin hole cooperating with the clamping pin (22); the driving sleeve body is provided with a second clamping groove (104) cooperating with the clamping member (23).

5. The energy-saving diameter-reducing device according to any one of claims 1 to 4, characterized in that: It also includes a follower sleeve assembly (3), one end of which is connected to the drill rod assembly (6), and the other end of which is provided with a flange connection portion (301).

6. The energy-saving diameter-reducing device according to claim 5, characterized in that: The follower sleeve assembly (3) comprises a shock-absorbing pad (33) and a semi-annular clamping plate (32) for clamping and connecting with the drill rod assembly (6).

7. A drilling rig, characterized in that: It comprises a rotary drilling power head assembly, a drill rod assembly (6) and the energy-saving reducing device according to any one of claims 1 to 6.

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