Drill rod for multifunctional large-diameter forward and reverse drilling machine

Abstract

The utility model belongs to the technical field of drill rods, and particularly relates to a drill rod for a multifunctional large-diameter forward and reverse drilling machine, the drill rod comprises a spiral drill rod main body structure, a drill bit main body structure and a mounting structure, a depth adjusting groove is formed in the bottom of the spiral drill rod main body structure, and the drill bit main body structure is mounted in the depth adjusting groove; the size of the depth adjusting groove is larger than that of the drill bit main body structure, and the mounting structure is used for connecting the spiral drill rod main body structure with an external large-diameter forward and reverse drilling machine. During working, the spiral drill rod main body structure is driven to rotate, the mud scraping sliding seat is limited by the Z-axis guide rail, so that the drill bit main body structure can rotate along with the spiral drill rod main body structure to realize drilling work, and the length of the part, extending out of the depth adjusting groove, of the drill bit main body structure can be adjusted; the drill bit main body structure can drill into rocks with different depths, so that the drilling fluency of the spiral drill rod main body structure is improved, and the spiral drill rod main body structure can cope with foundations with different conditions.

Description

Technical Field

[0001] This utility model relates to a drill rod for forward and reverse drilling rigs, specifically a multi-functional large-diameter drill rod for forward and reverse drilling rigs. Background Technology

[0002] The construction of large-scale pumped-storage power stations mainly relies on the elevation difference between the upper and lower reservoirs in mountainous terrain to convert water into gravitational potential energy or electrical energy. The structures of a pumped-storage power station generally include upper and lower reservoirs and pressure pipelines. The upper reservoir is built in the upper part of the mountain; the lower reservoir is located in the lower part, utilizing existing reservoirs or constructing new ones; and the pressure pipelines are built inside the mountain. There are also underground powerhouses for installing generators, voltage regulating chambers for power transmission and transformation, and tailrace channels for power generation. With the increase in installed capacity of pumped-storage power stations, the water head of the power transmission system is higher, and the length of the pressure pipelines increases, resulting in large-scale vertical shaft and steeply inclined shaft engineering during construction, which is difficult and risky. Therefore, the efficient construction of vertical shafts and steeply inclined shafts has become one of the key issues restricting the construction of pumped storage power stations. The earliest method for constructing the pilot shaft of the pressure pipeline of pumped storage power stations using the climbing tank method has disadvantages such as dangerous working environment, high labor intensity for workers, and serious occupational injuries. Furthermore, as the length of the inclined shaft increases, the construction efficiency is low, and it has gradually been replaced by the reverse drilling method.

[0003] However, domestic research institutes and drilling companies have invented single-function products for vertical, inclined, and reverse drilling. Multifunctional large-diameter forward and reverse drilling rigs, especially those with non-adjustable drill bit lengths, have not yet been developed, making them unsuitable for handling rocks at different depths in the soil. Therefore, this application designs a drill rod for a multifunctional large-diameter forward and reverse drilling rig. Utility Model Content

[0004] The main objective of this disclosure is to provide a multifunctional large-diameter drill rod for forward and reverse drilling rigs, so as to effectively solve the problems raised by the inventors in the above-mentioned background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multifunctional large-diameter forward and reverse drilling rig drill rod includes a spiral drill rod main structure, a drill bit main structure, and an installation structure. The bottom of the spiral drill rod main structure is provided with a depth adjustment groove. The drill bit main structure is installed in the depth adjustment groove, and the size of the depth adjustment groove is larger than the size of the drill bit main structure. The installation structure is used to connect the spiral drill rod main structure to an external large-diameter forward and reverse drilling rig.

[0007] Preferably, the sidewall of the depth adjustment groove is fixedly equipped with several Z-axis guide rails arranged in a circular array, and a mud scraper slide is slidably installed on the Z-axis guide rail. The size of the mud scraper slide is adapted to the size of the depth adjustment groove, and the main body structure of the drill bit is fixedly installed at the bottom of the mud scraper slide.

[0008] Preferably, a built-in small electric push rod is fixedly installed at the bottom of the depth adjustment groove, and the output end of the built-in small electric push rod is connected to the mud scraper slide.

[0009] Preferably, the mud scraper slide has a central hole in the middle, and an I-shaped sleeve is rotatably installed in the central hole. The upper and lower ends of the I-shaped sleeve are located outside the mud scraper slide, and the output end of the built-in small electric push rod is fixedly connected to the top of the I-shaped sleeve.

[0010] Preferably, the mud scraper slide has a central hole in the middle, and an I-shaped sleeve is rotatably installed in the central hole. The upper and lower ends of the I-shaped sleeve are located outside the mud scraper slide, and the output end of the built-in small electric push rod is fixedly connected to the top of the I-shaped sleeve.

[0011] Preferably, the auger blades are fixedly installed on the side of the main structure of the auger drill rod, and the linear grooves are formed on the side of the main structure of the drill bit.

[0012] Preferably, the mounting structure includes a T-shaped balance seat, a drill pipe joint, and a disc spring. The T-shaped balance seat is fixedly mounted on the top of the main structure of the auger drill pipe, the drill pipe joint is fixedly connected to the top of the T-shaped balance seat, and the disc spring is fixedly connected between the T-shaped balance seat and the drill pipe joint. The drill pipe joint has an installation opening.

[0013] In view of this, compared with the prior art, the beneficial effects of this utility model are:

[0014] (i) In this application, the drill pipe joint and the mounting port are used to connect the external large-diameter forward and reverse drilling machine. The disc spring and T-shaped balance seat on the drill pipe joint are used to connect the main structure of the auger drill pipe and can ensure the overall strength of the connection structure, so that the main structure of the auger drill pipe can operate stably.

[0015] (ii) In this application, during operation, the main structure of the auger drill rod is driven to rotate. Since the mud scraper slide is limited by the Z-axis guide rail, the main structure of the drill bit can rotate with the main structure of the auger drill rod to realize drilling. The length of the part of the main structure of the drill bit extending out of the depth adjustment groove can be adjusted so that the main structure of the drill bit can drill into rocks of different depths, thereby improving the drilling smoothness of the main structure of the auger drill rod and being able to cope with different foundation conditions.

[0016] (III) In this application, the built-in small electric push rod works, which drives the mud scraper slide to move in the depth adjustment groove and move along the Z-axis guide rail, thereby enabling the drill bit body structure to move. The I-shaped sleeve protects the output end of the built-in small electric push rod. During the movement of the mud scraper slide, the soil can be cleared away to reduce the possibility of jamming. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic diagram of the drill rod structure for a multifunctional large-diameter forward and reverse drilling rig provided by this utility model;

[0018] Figure 2 As shown Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 As shown Figure 1 A schematic diagram of the main structure of the drill bit after it has been moved downwards;

[0020] Figure 4 The image shown is a top view of the main structure of the auger drill pipe.

[0021] Figure 5 The image shown is a top view of the mud scraper slide.

[0022] Figure 6 The image shown is a three-dimensional view of the I-shaped sleeve.

[0023] icon:

[0024] 1-Main structure of auger drill pipe; 101-Auger blade; 102-Depth adjustment groove; 2-Main structure of drill bit; 3-Z-axis guide rail; 301-End plate; 4-Scraper slide; 401-Linkage slide; 402-Center hole; 5-I-shaped sleeve; 6-Built-in small electric push rod; 7-T-type smooth seat; 8-Drill pipe joint; 801-Mounting port; 9-Disc spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 The present invention provides the following embodiments:

[0027] A multifunctional large-diameter forward and reverse drilling rig drill rod includes a spiral drill rod main structure 1, a drill bit main structure 2, and an installation structure. The bottom of the spiral drill rod main structure 1 has a depth adjustment groove 102. The drill bit main structure 2 is installed within the depth adjustment groove 102, and the size of the depth adjustment groove 102 is larger than the size of the drill bit main structure 2. The installation structure connects the spiral drill rod main structure 1 to an external large-diameter forward and reverse drilling rig. Several Z-axis guide rails 3 arranged in a circular array are fixedly installed on the side wall of the depth adjustment groove 102, and a mud scraper slide 4 is slidably installed on the Z-axis guide rails 3. The size of the mud scraper slide 4 is adapted to the size of the depth adjustment groove 102. The drill bit main structure 2 is fixedly installed at the bottom of the mud scraper slide 4. A screw conveyor blade 101 is fixedly installed on the side of the spiral drill rod main structure 1, and a linear groove is formed on the side of the drill bit main structure 2.

[0028] Specifically, a built-in small electric push rod 6 is fixedly installed at the bottom of the depth adjustment groove 102, and the output end of the built-in small electric push rod 6 is connected to the scraper slide 4. A central hole 402 is opened in the middle of the scraper slide 4, and an I-shaped sleeve 5 is rotatably installed in the central hole 402. The upper and lower ends of the I-shaped sleeve 5 are located outside the scraper slide 4, and the output end of the built-in small electric push rod 6 is fixedly connected to the top of the I-shaped sleeve 5.

[0029] Specifically, the side of the mud scraper slide block 4 has several linkage slide ports 401 arranged in a ring array. The Z-axis guide rail 3 is adapted to the linkage slide ports 401, and the Z-axis guide rail 3 slides through the linkage slide ports 401. The lower end of the Z-axis guide rail 3 is fixedly installed with a head plate 301, and the drill bit body structure 2 passes through the head plates 301.

[0030] Specifically, the installation structure includes a T-shaped balance seat 7, a drill pipe joint 8, and a disc spring 9. The T-shaped balance seat 7 is fixedly installed at the top of the main structure 1 of the spiral drill pipe, the drill pipe joint 8 is fixedly connected to the top of the T-shaped balance seat 7, and the disc spring 9 is fixedly connected between the T-shaped balance seat 7 and the drill pipe joint 8. An installation port 801 is provided on the drill pipe joint 8.

[0031] The specific implementation of this embodiment is as follows: the drill pipe joint 8 and the mounting port 901 are used to connect the external large-diameter forward and reverse drilling machine; the disc spring 9 and the T-shaped balance seat 7 on the drill pipe joint 8 are used to connect the main structure 1 of the spiral drill pipe and can ensure the overall strength of the connection structure, so that the main structure 1 of the spiral drill pipe can operate stably.

[0032] During operation, the main structure 1 of the auger drill rod is driven to rotate. Since the mud scraper slide 4 is limited by the Z-axis guide rail 3, the main structure 2 of the drill bit can rotate with the main structure 1 of the auger drill rod to realize drilling work. The length of the part of the main structure 2 of the drill bit extending out of the depth adjustment groove 102 can be adjusted, so that the main structure 2 of the drill bit can drill into rocks of different depths, thereby improving the drilling smoothness of the main structure 1 of the auger drill rod and being able to cope with different foundation conditions.

[0033] The built-in small electric push rod 6 operates, which drives the mud scraper slide 4 to move within the depth adjustment groove 102 and along the Z-axis guide rail 3, thereby enabling the drill bit body structure 2 to move. The I-shaped sleeve 5 protects the output end of the built-in small electric push rod 6. During the movement of the mud scraper slide 4, soil can be cleared away to reduce the possibility of jamming.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-functional large-diameter drill rod for forward and reverse drilling rigs, characterized in that: The system includes a spiral drill rod main structure (1), a drill bit main structure (2), and an installation structure. The spiral drill rod main structure (1) has a depth adjustment groove (102) at its bottom. The drill bit main structure (2) is installed in the depth adjustment groove (102), and the size of the depth adjustment groove (102) is larger than the size of the drill bit main structure (2). The installation structure is used to connect the spiral drill rod main structure (1) to an external large-diameter forward and reverse drilling machine.

2. The multifunctional large-diameter drill rod for forward and reverse drilling rigs according to claim 1, characterized in that: The side wall of the depth adjustment groove (102) is fixedly installed with several Z-axis guide rails (3) arranged in a ring array, and a mud scraper slide (4) is slidably installed on the Z-axis guide rail (3). The size of the mud scraper slide (4) is adapted to the size of the depth adjustment groove (102). The drill bit body structure (2) is fixedly installed at the bottom of the mud scraper slide (4).

3. The multifunctional large-diameter drill rod for forward and reverse drilling rigs according to claim 2, characterized in that: The bottom of the depth adjustment groove (102) is fixedly equipped with a built-in small electric push rod (6), and the output end of the built-in small electric push rod (6) is connected to the mud scraper slide (4).

4. The multifunctional large-diameter drill rod for forward and reverse drilling rigs according to claim 3, characterized in that: The mud scraper slide (4) has a central hole (402) in the middle, and an I-shaped sleeve (5) is rotatably installed in the central hole (402). The upper and lower ends of the I-shaped sleeve (5) are located outside the mud scraper slide (4), and the output end of the built-in small electric push rod (6) is fixedly connected to the top of the I-shaped sleeve (5).

5. The multifunctional large-diameter drill rod for forward and reverse drilling rigs according to claim 4, characterized in that: The side of the mud scraper slide (4) is provided with several linkage slides (401) arranged in a ring array. The Z-axis guide rail (3) is adapted to the linkage slides (401) and slides through the linkage slides (401). The lower end of the Z-axis guide rail (3) is fixedly installed with a head plate (301). The drill bit body structure (2) passes through the head plates (301).

6. The multifunctional large-diameter drill rod for forward and reverse drilling rigs according to claim 1, characterized in that: The auger blade (101) is fixedly installed on the side of the main structure (1) of the auger rod, and the linear groove is opened on the side of the main structure (2) of the drill bit.

7. The multifunctional large-diameter drill rod for forward and reverse drilling rigs according to claim 1, characterized in that: The installation structure includes a T-shaped balance seat (7), a drill pipe joint (8), and a disc spring (9). The T-shaped balance seat (7) is fixedly installed on the top of the main structure (1) of the spiral drill pipe. The drill pipe joint (8) is fixedly connected to the top of the T-shaped balance seat (7). The disc spring (9) is fixedly connected between the T-shaped balance seat (7) and the drill pipe joint (8). The drill pipe joint (8) has an installation port (801).

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