High-torque hole-making drill rod

Abstract

The utility model discloses a high-torque cave-making drill rod, which relates to the field of industrial construction equipment and comprises a drill rod main body, a hole is arranged in the drill rod main body, a plurality of thread grooves are arranged on the inner wall of the hole, an internal rotation drill rod matched with the thread grooves is arranged in the hole, and a sampling device is arranged at the bottom of the internal rotation drill rod. The sampling device comprises a drilling bit, the drilling bit is connected with an internal rotation drilling rod, and a pair of guiding and collecting plates are symmetrically arranged on the two sides of the drilling bit. According to the utility model, the thread design is innovated and improved through the thread mechanics principle, so that the drilling force of the internal rotation drill rod is obviously enhanced, rock breaking and caving can be easily carried out in complex stratums such as hard rocks, the drilling efficiency and quality are effectively improved, and various complex mining operation requirements are met; and meanwhile, redundant geological materials during hole drilling are collected through the arranged sampling device, so that the materials are conveniently analyzed, and subsequent hole drilling operation is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of industrial construction equipment, concretely is a high torque cave drilling rod. BACKGROUND

[0002] In the exploitation field of oil, natural gas and other resources, efficient drilling operation is the key link to obtain resources. With the increasing of exploitation depth and difficulty, the requirement for the performance of drill pipe is also increasingly stringent. As one of the core tools for drilling operation, the performance of high torque cave drilling rod directly affects the exploitation efficiency and cost, so the development of high performance drill pipe is crucial to the industry development.

[0003] At present, there are various types of drill pipes in the market. These drill pipes can play a certain role in conventional exploitation operation, can meet the drilling demand under general geological conditions, and can ensure the smooth progress of basic exploitation work. They can realize drilling operation in relatively soft stratum and complete simple exploitation tasks.

[0004] In the prior art, when the conventional drill pipe is used, the drill pipe is first installed on the drilling machine, the drilling machine is driven to rotate the drill pipe, the cutting force generated by the rotation of the drill pipe is used to break the stratum, so as to realize drilling. During drilling, the rotation speed and the advancing speed of the drill pipe are adjusted according to the stratum condition, so as to complete the entire drilling operation.

[0005] However, the prior art has obvious deficiencies when facing complex stratum. When hard rock layer or special geological structure is encountered, the drilling force of the conventional drill pipe is insufficient, and it is difficult to efficiently perform cave forming operation. Especially in the aspect of thread design, the conventional thread pitch cannot effectively transmit torque, so that the drill pipe cannot fully exert the drilling force when rotating, which affects the efficiency and quality of drilling, and it is difficult to meet the increasing demand for complex exploitation, and when deep drilling is performed, the geological material is not collected, and subsequent geological analysis operation is difficult. INVENTION CONTENTS

[0006] Based on this, the purpose of the utility model is to provide a high torque cave drilling rod, so as to solve the technical problems of uneven sample processing, inconvenient operation, poor precision and low efficiency, and difficult collection of deep geological material in the prior art.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a high torque cave drilling rod, comprising a drill pipe body, a hole is formed in the drill pipe body, a plurality of thread grooves are arranged on the inner wall of the hole, an inner rotary drill pipe is arranged in the hole in cooperation with the thread grooves, a sampling device is arranged at the bottom of the inner rotary drill pipe, the sampling device comprises a drilling bit, the drilling bit is connected with the inner rotary drill pipe, and a pair of guide collection plates is symmetrically arranged on both sides of the drilling bit.

[0008] By adopting the technical scheme, the inner rotary drill rod is rotated out of the drill rod main body to drill the ground.

[0009] The utility model further sets up, the inner rotary drill rod is set up with the filter screen in the bottom with the drill hole drill head junction.

[0010] By adopting the technical scheme, the inner rotary drill rod is rotated out of the drill rod main body to drill the ground.

[0011] The utility model further sets up, the inner rotary drill rod is set up with the filter screen in the bottom with the drill hole drill head junction.

[0012] By adopting the technical scheme,

[0013] The utility model further sets up, the drill hole drill head top cooperation guide collection board with filter screen is provided with guide plate.

[0014] By adopting the technical scheme,

[0015] The utility model further sets up, the screw groove interval 0.45mm.

[0016] By adopting the technical scheme, through the small interval of setting, through the small interval of setting, make the drill rod obtain high torque, thereby enhance the strength of the drill rod's drilling.

[0017] Summarized above, the utility model mainly has following beneficial effect:

[0018] The utility model discloses through the principle of mechanics, the innovation improvement of screw thread design, let the inner rotary drill rod drill force significantly enhance, can easily break the rock and make the cave in the hard rock and other complex stratum, effectively promote the drilling efficiency and quality, satisfy various complex mining operation demand, and through the setting sample device when drilling the hole, the redundant geological material is collected, and the material is analyzed conveniently, and the subsequent drilling hole operation is convenient. ACCURACY OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the whole structure schematic diagram of the utility model; Figure 1 It is the structure schematic diagram of A place in;

[0021] Figure 3 It is the structure schematic diagram of B place in; Figure 1

[0022] Figure 4 It is the internal structure cross section view of the utility model;

[0023] Figure 5 ​This is an internal sectional view of the internal rotating drill rod of this utility model;

[0024] Figure 6 This is a schematic diagram of the sampling device of this utility model.

[0025] In the diagram: 1. Drill rod body; 2. Opening; 3. Internal rotating drill rod; 4. Sampling device; 5. Extraction cavity; 6. Filter screen; 7. Guide plate; 8. Drill bit; 9. Guide collection plate. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] A high-torque hole-making drill pipe, such as Figures 1-6 As shown, the system includes a drill rod body 1, with an opening 2 inside the drill rod body 1. The inner wall of the opening 2 is provided with several threaded grooves. An internally rotating drill rod 3 is provided inside the opening 2 to fit the threaded grooves. By engaging the internally rotating drill rod 3 with the several threaded grooves, when the drill rod body 1 or the internally rotating drill rod 3 rotates, the internally rotating drill rod 3 can move up and down inside the drill rod body 1 to perform drilling operations. Furthermore, a sampling device 4 is provided at the bottom of the internally rotating drill rod 3. Through the sampling device 4, geological materials can be sampled during drilling to facilitate subsequent drilling and opening operations.

[0029] Specifically, the sampling device 4 includes a drilling bit 8, which is connected to an inner rotating drill rod 3. A pair of guide collection plates 9 are symmetrically arranged on both sides of the drilling bit 8. When the inner rotating drill rod 3 rotates, it drives the drilling bit 8 to rotate, thereby performing drilling operations. As the inner rotating drill rod 3 presses down, it squeezes the geological material upward, so that the material is collected by the guide collection plates 8. In conjunction with this, a material collection cavity 5 is opened in the inner rotating drill rod 3. The material collection cavity 5 is connected to the other end of the inner rotating drill rod 3. A filter screen 6 is opened at the connection between the bottom of the inner rotating drill rod 3 and the drilling bit 8. The material entering the material collection cavity 5 is filtered through the filter screen 6, ensuring that smaller and lighter geological materials are collected first during drilling operations, while larger pieces of material remain on the drilling bit 8. When the main body of the drill rod 1 is removed, the larger geological materials can be collected.

[0030] The top of the drill bit 8 is equipped with a guide plate 7, which works in conjunction with the guide collection plate 9 and the filter screen 6 to guide the collected material to the filter screen 6.

[0031] Meanwhile, the thread groove interval is 0.45 mm, and the thread groove interval is 0.45, and through the small interval, the drilling force of the inner rotary drill rod 3 is enhanced through the small interval, and the drilling force of the drill rod is enhanced.

[0032] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make the modification, replacement and change of the embodiments without the creative contribution after reading the specification without departing from the principles and the purpose of the utility model, but as long as in the patent right claim range of the utility model, it is protected by the patent law.

Claims

1. A high-torque cavity-forming drill rod, comprising a drill rod body (1), characterized in that: The drill rod body (1) has an opening (2) inside. The inner wall of the opening (2) is provided with several threaded grooves. An internal rotating drill rod (3) is provided in the opening (2) in conjunction with the threaded grooves. A sampling device (4) is provided at the bottom of the internal rotating drill rod (3). The sampling device (4) includes a drilling bit (8). The drilling bit (8) is connected to the internal rotating drill rod (3). A pair of guide collecting plates (9) are symmetrically arranged on both sides of the drilling bit (8).

2. The high-torque cavity-making drill pipe according to claim 1, characterized in that: The inner rotary drill rod (3) has a material retrieval cavity (5) inside, and the material retrieval cavity (5) is connected to the other end of the inner rotary drill rod (3).

3. The high-torque cavity-making drill pipe according to claim 1, characterized in that: A filter screen (6) is provided at the connection between the bottom of the internal rotary drill rod (3) and the drill bit (8).

4. A high-torque cavity-making drill rod according to claim 1, characterized in that, The top of the drill bit (8) is equipped with a guide plate (7) in conjunction with the guide collection plate (9) and the filter screen (6).

5. A high-torque cavity-making drill rod according to claim 1, characterized in that: The thread groove spacing is 0.45 mm.

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