Central through cable directional drill rod water tail for coal mine

Abstract

The utility model discloses a center through cable directional drill rod water tail for a coal mine, and aims to solve the problems that an existing drill rod water tail is simple in structure, easy to break down after being used for a long time, the stability needs to be improved, and repair and maintenance are difficult. The drill rod water tail is designed to be formed by combining the main pipe, the casing pipe, the connecting pipe, the first connector and the second connector, the main pipe, the casing pipe, the connecting pipe, the first connector and the second connector are connected through threads, the protruding part is arranged on the main pipe and matched with the casing pipe and the connecting pipe to limit the bearing, and the sealing rings are arranged on the casing pipe and the connecting pipe to conduct sealing protection on the bearing. And the fastening nut is further arranged, so that the connection stability is improved, the service life of the drill rod water tail is prolonged, the operation stability of the drill rod water tail is improved, and when a certain part breaks down, the part can be conveniently detached for maintenance or replacement.

Description

Technical Field

[0001] This utility model relates to the field of drilling, and more specifically, it relates to a center-guided directional drill rod with a water tail for coal mines. Background Technology

[0002] The fin in a drilling rig is a crucial component of drilling equipment, primarily used during rotary drilling. It is typically located at the top of the drill pipe, connecting the drill pipe to high-pressure water pipes or a mud pump system. The fin's main function is to act as a channel for drilling fluids (such as water and mud) to enter the drill pipe and flow to the drill bit, ensuring smooth fluid circulation during drilling. However, existing drill pipe fin structures are simple, prone to failure after prolonged use, their stability needs improvement, and maintenance is relatively difficult.

[0003] Based on the above, the purpose of this utility model is to provide a center-guided directional drill rod with a water tail for coal mines to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a center-guided directional drill rod tailpipe for coal mines. This utility model designs the drill rod tailpipe as a combination of a main pipe, a casing, a connecting pipe, a first connector, and a second connector, with most of them connected by threads. The main pipe is provided with a protrusion, which, together with the casing and the connecting pipe, limits the bearing, thereby improving the operational stability of the drill rod tailpipe. Furthermore, when a component malfunctions, it is easy to disassemble, repair, or replace it.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a water tailings for a center-guided directional drill rod in a coal mine, comprising a main pipe, a sleeve and a connecting pipe rotatably connected to the main pipe, a connecting structure between the sleeve and the connecting pipe that allows for detachable connection between the two, a connector head one for installing a water pipe threaded onto the connecting pipe, a connector head two for installing a drill rod threaded onto the side of the main pipe away from the connector head one, a plurality of bearings being provided between the main pipe and the sleeve, a protrusion for limiting the bearings being provided on the main pipe, a plurality of bearings being respectively provided on both sides of the protrusion, and the two ends of the bearings on both sides abutting against the protrusion and the sleeve or connecting pipe respectively.

[0006] By adopting the above technical solution, the drill pipe water tail is composed of a main pipe, casing, connecting pipe, connector one and connector two, and most of them are connected by threads. The main pipe is provided with a protrusion, which, together with the casing and connecting pipe, limits the bearing, thereby improving the stability of the drill pipe water tail. In addition, when a certain component fails, it is easy to disassemble and repair or replace it.

[0007] The present invention is further configured such that: the connecting structure includes a plurality of bolts, one end of which abuts against the connecting pipe, and the other end of the bolts is threadedly connected to the sleeve.

[0008] The present invention is further provided with a number of sealing rings on both the sleeve and the connecting pipe to prevent impurities from contacting the bearing.

[0009] The present invention is further configured such that a first fastening nut is threadedly connected to the side of the main tube near the second connector.

[0010] The present invention is further configured such that: the connecting structure includes a second fastening nut that is threadedly connected to the connecting pipe, and the connecting pipe is threadedly connected to the sleeve.

[0011] In summary, this utility model has the following beneficial effects:

[0012] This utility model designs the drill pipe tailpipe as a combination of a main pipe, a casing, a connecting pipe, a first connector, and a second connector, with most of them connected by threads. The main pipe has a protrusion that, together with the casing and connecting pipe, limits the bearing. Both the casing and connecting pipe are equipped with sealing rings to seal and protect the bearing. A fastening nut is also provided to improve the connection stability, thereby increasing the service life and operational stability of the drill pipe tailpipe. Furthermore, it is easy to disassemble and repair or replace a component if it malfunctions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model patent. Figure 1 This shows the overall structure of the present invention;

[0014] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model patent. Figure 2 This shows the internal structure of the drill pipe tailpipe;

[0015] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present utility model patent, showing the internal structure of the drill pipe tail.

[0016] In the diagram: 1. Main pipe; 2. Sleeve; 3. Connecting pipe; 4. Connector 1; 5. Connector 2; 6. Bearing; 7. Protrusion; 8. Sealing ring; 9. Bolt; 10. First fastening nut; 11. Second fastening nut. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "provided with," "set up / connected," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] Example 1: A water tailpipe for a center-guided directional drill rod in a coal mine, such as... Figures 1-2 As shown, it includes a main pipe 1, on which a sleeve 2 and a connecting pipe 3 are rotatably connected. A connection structure is provided between the sleeve 2 and the connecting pipe 3 to enable a detachable connection between the two. A connector 4 for installing a water pipe is threaded onto the connecting pipe 3. A connector 5 for installing a drill rod is threaded onto the side of the main pipe 1 away from the connector 4. Several bearings 6 are installed between the main pipe 1 and the sleeve 2. A protrusion 7 is machined on the main pipe 1 to limit the bearings 6. Several bearings 6 are respectively arranged on both sides of the protrusion 7. The two ends of the bearings on both sides abut against the protrusion 7 and the sleeve 2 or the connecting pipe 3, respectively.

[0022] Furthermore, the connecting structure includes several bolts 9, one end of which abuts against the connecting tube 3, and the other end of the bolts 9 is threadedly connected to the sleeve 2. The connecting tube is provided with several storage holes for storing the bolt heads.

[0023] Furthermore, both the sleeve 2 and the connecting pipe 3 are equipped with several sealing rings 8 to prevent impurities from contacting the bearing 6.

[0024] Furthermore, the main pipe 1 is threaded with a first fastening nut 10 on the side near the connector 2 5.

[0025] Furthermore, auxiliary grooves are machined on both sides of the main tube, which can assist tools such as wrenches in assembling and installing the drill rod tail section.

[0026] Working principle: The drill pipe water tail is composed of a main pipe 1, a casing 2, a connecting pipe 3, a first connector 4, and a second connector 5, and most of them are connected by threads. The main pipe 1 is provided with a protrusion 7, which works with the casing 2 and the connecting pipe 3 to limit the bearing 6. Both the casing 2 and the connecting pipe 3 are provided with sealing rings 8 to seal and protect the bearing 6, making the bearing run more stably and extending its service life. A fastening nut is also provided to improve the connection stability, improve the service life and operational stability of the drill pipe water tail, and make it easy to disassemble and repair or replace a component when it fails.

[0027] Example 2: A water tailpipe for a center-cable directional drill rod in a coal mine, such as... Figure 3 As shown, the difference from Embodiment 1 lies in the composition of the connection structure: the connection structure includes a second fastening nut 11 that is threadedly connected to the connecting pipe 3, and the connecting pipe 3 is threadedly connected to the sleeve 2.

[0028] Working principle: The threaded connection makes the connection between the connecting pipe 3 and the sleeve 2 more convenient, and the second fastening nut 11 can further improve the tightness of the connection between the connecting pipe 3 and the sleeve 2.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A central cable drill pipe water tail for coal mines, characterized in that: The system includes a main pipe (1), on which a sleeve (2) and a connecting pipe (3) are rotatably connected. A connecting structure is provided between the sleeve (2) and the connecting pipe (3) to allow for detachable connection. A connector (4) for installing a water pipe is threaded onto the connecting pipe (3). A connector (5) for installing a drill rod is threaded onto the side of the main pipe (1) away from the connector (4). Several bearings (6) are provided between the main pipe (1) and the sleeve (2). A protrusion (7) is provided on the main pipe (1) to limit the bearings (6). Several bearings (6) are respectively provided on both sides of the protrusion (7). The two ends of the bearings (6) on both sides abut against the protrusion (7) and the sleeve (2) or the connecting pipe (3) respectively.

2. The center cable directional drilling pipe water tail for coal mine according to claim 1, characterized in that: The connection structure includes several bolts (9) with one end abutting against the connecting pipe (3), and the other end of the bolts (9) is threadedly connected to the sleeve (2).

3. The center cable directional drilling pipe water tail for coal mine according to claim 1, characterized in that: Both the sleeve (2) and the connecting tube (3) are provided with several sealing rings (8) to prevent impurities from contacting the bearing (6).

4. The center cable directional drilling pipe water tail for coal mine according to claim 1, characterized in that: The main tube (1) is threaded with a first fastening nut (10) on the side near the connector (5).

5. A water tailpipe for a coal mine with a central cable guide as described in claim 1, characterized in that: The connection structure includes a second fastening nut (11) that is threadedly connected to the connecting tube (3), and the connecting tube (3) is threadedly connected to the sleeve (2).

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