Coal mine underground measurement-while-drilling directional drilling equipment

Abstract

The utility model provides coal mine underground measurement-while-drilling directional drilling equipment, which comprises a drill rod and a measurement-while-drilling instrument, a directional drilling structure is arranged at the end part of the drill rod, the directional drilling structure comprises a motor, a rotating plate is arranged at the output end of the motor, a drill bit is arranged on one side of the rotating plate, a reciprocating pushing structure is arranged between the rotating plate and the drill bit, and the reciprocating pushing structure is arranged on the other side of the rotating plate. A stone crushing structure is arranged on the drill bit, a reaming structure is arranged on the peripheral side of the drill bit, and a plurality of slag discharging grooves are formed in the peripheral side of the drill bit. According to the drilling device, the reciprocating pushing structure is installed between the rotating plate and the drill bit, the stone crushing structure is installed on the drill bit, the hole expanding structure is installed on the peripheral side of the drill bit, stone crushing can be conducted through the stone crushing structure, hole expanding can be conducted through the hole expanding structure, and therefore hard stone blocks are prevented from blocking the drill bit, and the drilling efficiency of the drilling device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a directional drilling device for measuring while drilling in underground coal mines. Background Art

[0002] Directional drilling originated in the field of oil and gas exploration and development. With the continuous development and deepening of drilling technology, this technology has gradually been introduced into new fields such as geological exploration and underground coal mine drilling. Directional drilling technology with near-bit measurement while drilling is a new technology in underground coal mine drilling engineering. It is currently mainly used in drilling projects such as underground coal mine gas extraction, flood control, and geological structure exploration. During the drilling process, drilling is mostly carried out by sliding the drill bit. The drill bit is mostly a conical structure, but it is easy to block the drill bit with harder rocks, resulting in low drilling efficiency.

[0003] To this end, the utility model provides a coal mine underground measurement-while-drilling directional drilling equipment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a directional drilling equipment for downhole measurement in coal mines to solve the problems raised in the above-mentioned background technology. The present invention can crush stones through the stone crushing structure and expand holes through the hole expanding structure, thereby preventing harder stones from blocking the drill bit and improving the drilling efficiency of the device.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a directional drilling equipment for measurement while drilling in a coal mine, including a drill rod and a measurement while drilling instrument, the end of the drill rod is equipped with a directional drilling structure, the directional drilling structure includes a motor, the output end of the motor is equipped with a turn plate, a drill bit is equipped on one side of the turn plate, a reciprocating pushing structure is installed between the turn plate and the drill bit, a stone crushing structure is installed on the drill bit, a hole expansion structure is installed on the peripheral side of the drill bit, and a plurality of slag discharge grooves are opened on the peripheral side of the drill bit.

[0006] Furthermore, the output end of the motor is fixedly connected to the rotating plate.

[0007] Furthermore, the reciprocating driving structure includes a motor, the motor is fixedly connected to the rotating plate, and a reciprocating screw is fixed to the output end of the motor, and the reciprocating screw corresponds to the drill bit.

[0008] Furthermore, a plurality of slide grooves are provided in the drill bit, wherein a thread is provided in one of the slide grooves, and the thread corresponds to the reciprocating screw.

[0009] Furthermore, a plurality of slide bars are fixed on the rotating plate, and the slide bars correspond to the slide grooves.

[0010] Furthermore, the stone crushing structure includes a plurality of bumps, which are fixedly connected to the drill bit and are located at the end of the drill bit.

[0011] Furthermore, the reaming structure includes a plurality of reaming blocks, and the reaming blocks are fixed to the peripheral side of the drill bit.

[0012] The beneficial effects of the utility model are as follows: the utility model provides a directional drilling device for measuring while drilling in a coal mine, comprising a rotary plate, a drill bit, a reciprocating driving structure, a stone crushing structure, and a hole expanding structure.

[0013] A reciprocating pushing structure is installed between the rotary plate and the drill bit, a stone crushing structure is installed on the drill bit, and a hole expansion structure is installed on the peripheral side of the drill bit. The stone crushing structure can be used to crush stones, and the hole expansion structure can be used to expand holes, thereby preventing harder stones from blocking the drill bit and improving the drilling efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Fig. 1 This is a schematic diagram of the overall assembly structure of a directional drilling equipment for measurement while drilling in coal mines according to the utility model;

[0015] Fig. 2 This is a schematic diagram of the assembly structure of a drill bit in a directional drilling device for measurement while drilling in a coal mine in accordance with the present invention;

[0016] Fig. 3 This is a schematic diagram of the assembly cross-sectional structure of a drill bit in a directional drilling device for measurement while drilling in a coal mine;

[0017] In the figure: 1. Drill rod; 2. Drill bit; 3. Motor; 4. Measurement while drilling instrument; 5. Rotating plate; 6. Sliding rod; 7. Reciprocating screw; 8. Slide; 9. Thread; 10. Bump; 11. Reaming block; 12. Slag discharge chute; 13. Motor. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figs. 1 to 3The utility model provides a technical solution: a directional drilling equipment for measuring while drilling in a coal mine, comprising a drill rod 1 and a measuring while drilling instrument 4, wherein a directional drilling structure is installed at the end of the drill rod 1, and the directional drilling structure comprises a motor 3, a rotary plate 5 is installed at the output end of the motor 3, a drill bit 2 is installed on one side of the rotary plate 5, a reciprocating pushing structure is installed between the rotary plate 5 and the drill bit 2, a stone crushing structure is installed on the drill bit 2, a hole expansion structure is installed on the peripheral side of the drill bit 2, and a plurality of slag discharge grooves 12 are opened on the peripheral side of the drill bit 2, wherein the measuring while drilling instrument 4 and the patent with announcement number CN115822451A disclose a detachable directional drilling tool combination structure and a measuring while drilling instrument used in the directional drilling method.

[0020] In this embodiment, the output end of the motor 3 is fixedly connected to the rotating plate 5, and the reciprocating driving structure includes a motor 13, which is fixedly connected to the rotating plate 5. The output end of the motor 13 is fixed with a reciprocating screw 7, which corresponds to the drill bit 2.

[0021] Specifically, the motor 3 can drive the rotating plate 5 to rotate, thereby driving the drill bit 2 to rotate, and the motor 13 can drive the reciprocating screw 7 to rotate, so that the reciprocating screw 7 pushes the drill bit 2 to move, which can assist in drilling and improve work efficiency.

[0022] A plurality of slide grooves 8 are provided in the drill bit 2 , wherein a thread 9 is installed in one of the slide grooves 8 , and the thread 9 corresponds to the reciprocating screw 7 . A plurality of slide rods 6 are fixed on the rotating plate 5 , and the slide rods 6 correspond to the slide grooves 8 .

[0023] Specifically, when the motor 13 is started, the motor 13 drives the reciprocating screw 7 to rotate, so that the reciprocating screw 7 pushes the drill bit 2 through the thread 9. At this time, the slide rod 6 slides in the slide groove 8, which can push the drill bit 2 to move back and forth on the basis of propulsion, thereby assisting drilling.

[0024] The stone crushing structure includes a plurality of protrusions 10 , which are fixedly connected to the drill bit 2 and are located at the end of the drill bit 2 . The hole expansion structure includes a plurality of hole expansion blocks 11 , which are fixed to the peripheral side of the drill bit 2 .

[0025] Specifically, the protrusion 10 at the end of the drill bit 2 can grind stones, and the hole can be enlarged by the enlarging block 11, thereby ensuring the drilling effect and preventing stones from blocking the drill bit 2.

[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A directional drilling equipment for measuring while drilling in a coal mine, comprising a drill rod (1) and a measuring while drilling instrument (4), characterized in that: The end of the drill rod (1) is equipped with a directional drilling structure, which includes a motor (3). The output end of the motor (3) is equipped with a rotating plate (5). A drill bit (2) is equipped on one side of the rotating plate (5). A reciprocating pushing structure is installed between the rotating plate (5) and the drill bit (2). A stone crushing structure is installed on the drill bit (2). A hole expansion structure is installed on the peripheral side of the drill bit (2). A plurality of slag discharge grooves (12) are opened on the peripheral side of the drill bit (2).

2. The coal mine underground measurement while drilling directional drilling equipment according to claim 1, characterized in that: The output end of the motor (3) is fixedly connected to the rotating plate (5).

3. The coal mine underground measurement while drilling directional drilling equipment according to claim 1, characterized in that: The reciprocating propulsion structure comprises a motor (13), the motor (13) is fixedly connected to the rotating plate (5), a reciprocating screw (7) is fixed to the output end of the motor (13), and the reciprocating screw (7) corresponds to the drill bit (2).

4. The coal mine underground measurement while drilling directional drilling equipment according to claim 3, characterized in that: A plurality of slide grooves (8) are provided in the drill bit (2), wherein a thread (9) is installed in one of the slide grooves (8), and the thread (9) corresponds to the reciprocating screw (7).

5. The coal mine underground measurement while drilling directional drilling equipment according to claim 4, characterized in that: A plurality of slide bars (6) are fixed on the rotating plate (5), and the slide bars (6) correspond to the slide grooves (8).

6. The coal mine underground measurement while drilling directional drilling equipment according to claim 1, characterized in that: The stone crushing structure comprises a plurality of bumps (10), the bumps (10) being fixedly connected to the drill bit (2), and the bumps (10) being located at the end of the drill bit (2).

7. The coal mine underground measurement while drilling directional drilling equipment according to claim 1, characterized in that: The reaming structure comprises a plurality of reaming blocks (11), and the reaming blocks (11) are fixed to the peripheral side of the drill bit (2).

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