Directional drilling and reaming device for coal mine

Abstract

The utility model provides a directional drilling and reaming device for a coal mine. The directional drilling and reaming device comprises a mounting seat, a reaming part is further mounted on the mounting seat and comprises a reaming assembly and an adjusting assembly, the reaming assembly is mounted on the outer wall of the mounting seat, and the adjusting assembly is mounted in the mounting seat and used for adjusting the reaming diameter of the reaming assembly; the broaching assembly comprises a broaching blade, one end of the broaching blade is connected with the position, close to the guiding piece, of the mounting base, and the broaching blade is connected with the adjusting assembly. The other end of the reaming blade is connected with a reset piece which is connected with the installation base. The protruding size of the broaching blade arranged on the mounting base is adjusted through the adjusting assembly, then the broaching diameter of the directional hole is determined, broaching of the directional hole is achieved, after the device is used, the drill bit does not need to be manually disassembled and replaced, and the directional hole punching and broaching efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mining, in particular to a directional drilling and hole expanding device for coal mines. Background Art

[0002] As the mining depth of mines continues to increase, the hidden geological factors faced in the mine production process are becoming more and more complex, which seriously restricts the safety and sustainable production of mines. Directional drilling is one of the most direct and effective means of exploring and controlling hidden geological factors that cause disasters, and is of great significance to improving the safety level of mines.

[0003] At present, in underground coal mines, directional drilling is to open directional holes in the planned area by using directional drilling reamer. In the process of opening directional holes in underground coal mines, according to the purpose of construction, different diameters of orifice casings will be installed in the directional holes. In order to ensure the installation of the orifice casing, it is often necessary to expand the positioning hole. Although the existing directional drilling reamer can expand the hole at the location where the directional hole is opened, the drill bit structure of the directional drilling reamer is fixed and cannot be adjusted. In the process of opening the directional hole, the aperture opened by the directional drilling reamer is fixed. When the original directional hole needs to be expanded, the personnel need to disassemble the drill bit installed on the directional drilling reamer when drilling, and then replace the drill bit of different models, and then expand the position where the directional hole needs to be expanded to increase the aperture of the directional hole; although this operation can realize the expansion of the directional hole, it takes a long time to expand the hole and replace different drill bits, which leads to low efficiency in opening the directional hole; at the same time, the staff need to carry multiple drill bits of different models during the work process, which is a heavy burden for the staff. Utility Model Content

[0004] In order to solve the problem that the drill bit of the existing directional drilling reamer is fixed in size and inconvenient to adjust, and there is no reaming component thereon, which results in the need to replace the drill bit of different models when the directional hole needs to be expanded, which is time-consuming and labor-intensive, the utility model provides a directional drilling reaming device for coal mines.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a directional drilling and hole enlarging device for coal mines, comprising a guide member arranged on a mounting seat;

[0007] The mounting seat is also provided with a hole expanding part, the hole expanding part comprises a hole expanding component and an adjustment component, the hole expanding component is installed on the outer wall of the mounting seat, and the adjustment component is installed in the mounting seat and is used to adjust the hole expanding diameter of the hole expanding component;

[0008] The reaming assembly includes a reaming blade, one end of which is connected to a position on the mounting seat close to the guide member, and the reaming blade is connected to the adjustment assembly; the other end of the reaming blade is connected to a reset member, and the reset member is connected to the mounting seat.

[0009] Preferably, the adjustment assembly comprises a transmission assembly, the transmission assembly is connected to a pressing plate, and the pressing plate is connected to the reaming blade.

[0010] Preferably, the transmission assembly comprises a screw rod, the screw rod is rotatably mounted in the mounting seat, and one end of the screw rod is located at the position of the guide member on the mounting seat;

[0011] The screw rod is provided with a nut, the nut is connected to the extrusion disk, the end of the screw rod away from the guide piece is provided with a transmission motor, and the transmission motor is installed on the mounting seat.

[0012] Preferably, a limiting hole is provided on the extrusion disk, a limiting rod is passed through the limiting hole, the limiting rod is installed in the mounting seat, and the limiting rod is parallel to the screw rod.

[0013] Preferably, a mounting bracket is provided on the mounting seat, and the mounting bracket is connected to the transmission motor.

[0014] Preferably, a mounting groove is provided on the outer wall of the mounting seat, the reaming blade is connected by interference fit in the mounting groove, and one end of the mounting groove close to the guide member is movably connected to one end of the reaming blade, and the end of the reaming blade away from the guide member is connected to the reset member.

[0015] Preferably, the reset member comprises a fixing ring, the fixing ring is connected to the mounting seat, one end of a traction spring is connected to the fixing ring, and the other end of the traction spring is connected to the reaming blade.

[0016] Preferably, a protrusion is provided on the mounting seat at a position on the side of the mounting groove.

[0017] Preferably, the guide member comprises a mounting plate, a connecting head is connected to the mounting plate, and a directional drilling device is connected to the connecting head.

[0018] Preferably, a pipe connector is provided on the end of the mounting seat away from the guide member.

[0019] Compared with the prior art, the utility model has the following beneficial technical effects:

[0020] The utility model proposes a directional drilling reaming device for coal mines, which guides the device through a guide member to ensure the reaming accuracy and efficiency of the directional hole. When reaming the opened directional hole, the opening degree of the reaming blade in the reaming assembly is flexibly adjusted according to actual needs through an adjusting component, thereby achieving precise control of the reaming diameter, which not only meets the reaming operations under different geological conditions and engineering requirements, but also improves the adaptability and flexibility of the equipment. At the same time, a reset member is connected to one end of the reaming blade. After completing the reaming operation, the reaming blade can automatically reset to the initial state under the cooperation of the reset member and the adjusting component, without manual intervention, thereby greatly simplifying the operation process and improving work efficiency.

[0021] Furthermore, in the adjusting assembly of the device, the nut connected to the extrusion plate is driven by a screw rod to move along the limit rod under the action of the limit rod, thereby realizing the expansion of the reaming blade by extrusion. The operation process is simple and quick, and does not require complicated tools or complicated operating procedures. It not only improves the working efficiency, but also reduces the labor intensity of the operator, making the reaming operation more efficient and convenient, enhancing the stability and adaptability of the device, and reducing maintenance costs.

[0022] Furthermore, the sealing connection between the mounting groove and the reaming blade in the device prevents sand and gravel in the directional hole from entering the mounting seat during the reaming process, affecting the operation of the adjustment component, reducing the number of maintenance times and reducing maintenance costs.

[0023] Furthermore, the guide member in the device is connected to a connector via a mounting plate, and is connected to a directional drilling device or a guide tube via the connector. During use, the connection to the directional drilling device enables the device to open a directional hole and then expand the directional hole, so that the opening and expansion of the directional hole are completed through one operation of the device. When the connector is connected to the guide tube, the guide tube is located in the directional hole to position the device, thereby improving the accuracy of expanding the hole.

[0024] Furthermore, in the device, a pipe connector is provided on the mounting seat, and pipes are connected through the pipe connector to improve the stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is one of the overall structural schematic diagrams of a directional drilling and hole expansion device for coal mines proposed by the utility model;

[0026] Figure 2 This is the second overall structural schematic diagram of a directional drilling and hole expansion device for coal mines proposed by the utility model;

[0027] Figure 3 A cross-sectional view of a directional drilling and hole expansion device for coal mines proposed by the utility model

[0028] In the attached figure: 1. mounting seat; 2. pipe connector; 3. connector; 4. reaming part; 5. protrusion; 6. reaming assembly; 7. adjustment assembly; 8. reaming blade; 9. traction spring; 10. fixing ring; 11. mounting groove; 12. transmission motor; 13. mounting bracket; 14. screw; 15. extrusion disk; 16. limit rod; 17. mounting plate. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0034] See also Figure 1 to Figure 3 The utility model provides a directional drilling and hole-expanding device for coal mines, including a guide member provided on the lower end of a mounting seat 1, the guide member is used to move along the directional hole, position the directional hole, and guide the device;

[0035] See also Figure 1 to Figure 3 The mounting seat 1 is also provided with a hole reaming portion 4, the hole reaming portion 4 comprises a hole reaming component 6 and an adjustment component 7, the hole reaming component 6 is mounted on the outer wall of the mounting seat 1, and the adjustment component 7 is mounted in the mounting seat 1, and is used to adjust the hole reaming diameter of the hole reaming component 6, and reaming the directional hole so that the directional hole reaches the desired hole diameter;

[0036] The reaming assembly 6 includes a plurality of reaming blades 8, and a plurality of mounting grooves 11 are arranged at equal intervals on the outer wall of the mounting seat 1, and a reaming blade 8 is sealed and connected in each mounting groove 11. The sealing connection is to connect a sealing gasket between the mounting groove 11 and the reaming blade 8, and the lower end of each reaming blade 8 is hingedly connected at one end close to the guide member in each mounting groove 11, and a reset member is connected to the upper end of each reaming blade 8, and the reset member is connected to the mounting seat 1, and an adjustment assembly 7 is connected to the inner side wall of each reaming blade 8. The opening angles of the plurality of reaming blades 8 are synchronously adjusted through the adjustment assembly 7, so that the plurality of reaming blades 8 can synchronously reame the directional hole, thereby improving the reaming efficiency.

[0037] See also Figure 1 to Figure 3The adjusting assembly 7 includes a transmission assembly, which includes a screw 14. The screw 14 is vertically rotatably installed at the center position of the mounting seat 1, and one end of the screw 14 is located at the position of the lower end of the mounting seat 1. At the same time, the axis of the screw 14 is in line with the axis of the guide member, and the other end of the screw 14 is rotatably installed at the center position of the upper end face of the mounting seat 1. A nut is screwed on the screw 14, and the nut is fixedly connected to the extrusion disk 15. The outer wall of the extrusion disk 15 fits the inner end face of the reaming blade 8. In order to facilitate the adjustment of the protruding volume of the reaming blade 8, the extrusion disk 15 is arranged in a truncated cone shape, and the end with a smaller diameter is arranged toward the guide member. A limiting hole is arranged on the upper end face of the extrusion disk 15, which passes through its lower end face. A limit rod 16 is passed through the inside, and the limit rod 16 is vertically installed in the mounting seat 1, and the limit rod 16 is parallel to the screw 14. A transmission motor 12 is arranged on the upper end of the screw 14, and the output shaft of the transmission motor 12 is connected to the screw 14. A plurality of mounting brackets 13 are arranged at the center position of the upper end surface of the mounting seat 1, and the plurality of mounting brackets 13 are connected to the transmission motor 12. The transmission motor 12 makes the screw 14 rotate, and then under the limiting action of the limit rod 16, the limit rod 16 moves in the mounting seat 1 toward the direction close to the guide member, thereby pushing the upper end of the reaming blade 8 to move in the mounting groove 11 on the mounting seat 1, adjusting the protruding volume of the reaming blade 8, thereby changing the size of the reaming hole.

[0038] See also Figure 1 to Figure 3 The reset member includes a fixing ring 10, the upper end of which is fixed to the position of the upper end of the screw 14 connected to the mounting seat 1, and one end of a traction spring 9 is connected to the outer wall of the fixing ring 10, and the other end of the traction spring 9 is connected to the upper end of the reaming blade 8. When the position of the reaming blade 8 needs to be restored after the reaming is completed, the screw 14 is rotated by the transmission motor 12, and then under the limiting action of the limiting rod 16, the screw 14 moves in the mounting seat 1 along the limiting rod 16 in the direction away from the guide member, and the reaming blade 8 is retracted under the traction of the traction spring 9 to reduce the size of the reaming.

[0039] See also Figure 1 A protrusion 5 is provided on the mounting seat 1 at a position on the side of the mounting groove 11 .

[0040] See also Figure 1 to Figure 3 The guide member includes a mounting plate 17, which is mounted on the lower end of the mounting seat 1. The lower end of the screw 14 is rotatably connected to the inner end surface of the mounting plate 17. A connector 3 is connected to the outer end surface of the mounting plate 17. The connector 3 is connected to a directional drilling device or a guide tube. The movement of the device is guided by the directional drilling device or the guide tube so that it moves along the aperture of the directional hole to ensure the accuracy of the hole expansion.

[0041] See also Figure 1 to Figure 3A plurality of pipe connectors 2 are arranged on the end of the mounting seat 1 away from the guide member, and a plurality of pipe connectors 2 can be used to connect a plurality of pipes to improve stability.

[0042] During specific use, the user connects the connector 3 end of the device to the directional drilling equipment, and connects the pipe connector 2 to the pipe to be laid. The pipe to be laid can be laid in the traction box of the directional drilling equipment. During the laying process, the device as a whole expands the hole drilled by the directional drilling equipment. The operation of the transmission motor 12 drives the screw 14 to rotate, and drives the extrusion plate 15 to move downward. Under the extrusion of the extrusion plate 15 on the reaming blade 8, the reaming blade 8 rotates relative to the bottom, and the top expands outward to adjust the size of the reaming hole. When the female extrusion plate 15 moves upward, the reaming blade 8 is pulled inward by the traction of the traction spring 9 to reduce the size of the reaming hole.

[0043] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0044] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should take 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. The above content is only to illustrate the technical idea of ​​the utility model, and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the claims of the utility model.

Claims

1. A directional drilling and hole enlarging device for coal mines, characterized in that: The mounting seat (1) is provided with a guide member; The mounting seat (1) is also provided with a hole expanding portion (4), the hole expanding portion (4) comprising a hole expanding component (6) and an adjustment component (7), the hole expanding component (6) being installed on the outer wall of the mounting seat (1), and the adjustment component (7) being installed in the mounting seat (1) and being used to adjust the hole expanding diameter of the hole expanding component (6); The reaming assembly (6) comprises a reaming blade (8), one end of the reaming blade (8) being connected to a position on the mounting seat (1) close to the guide member, and the reaming blade (8) being connected to the adjustment assembly (7); the other end of the reaming blade (8) being connected to a reset member, and the reset member being connected to the mounting seat (1).

2. A directional drilling and hole enlarging device for coal mines according to claim 1, characterized in that: The adjustment assembly (7) comprises a transmission assembly, to which a pressing plate (15) is connected, and the pressing plate (15) is connected to the reaming blade (8).

3. A directional drilling and hole enlarging device for coal mines according to claim 2, characterized in that: The transmission assembly comprises a screw rod (14), the screw rod (14) being rotatably mounted in the mounting seat (1), and an end of the screw rod (14) being located at the position of the guide member on the mounting seat (1); The screw rod (14) is provided with a nut, the nut being connected to the extrusion disk (15); a transmission motor (12) is provided on the end of the screw rod (14) away from the guide member; the transmission motor (12) is mounted on the mounting seat (1).

4. A directional drilling and hole enlarging device for coal mines according to claim 3, characterized in that: A limiting hole is provided on the extrusion disk (15), a limiting rod (16) is inserted into the limiting hole, the limiting rod (16) is installed in the mounting seat (1), and the limiting rod (16) is parallel to the screw rod (14).

5. A directional drilling and hole enlarging device for coal mines according to claim 3, characterized in that: A mounting bracket (13) is provided on the mounting seat (1), and the mounting bracket (13) is connected to the transmission motor (12).

6. A directional drilling and hole enlarging device for coal mines according to claim 1, characterized in that: An installation groove (11) is provided on the outer wall of the installation seat (1), the reaming blade (8) is sealingly connected in the installation groove (11), and one end of the installation groove (11) close to the guide member is movably connected to one end of the reaming blade (8), and the end of the reaming blade (8) away from the guide member is connected to the reset member.

7. A directional drilling and hole enlarging device for coal mines according to claim 6, characterized in that: The reset member comprises a fixing ring (10), the fixing ring (10) being connected to the mounting seat (1), one end of a traction spring (9) being connected to the fixing ring (10), and the other end of the traction spring (9) being connected to the reaming blade (8).

8. A directional drilling and hole enlarging device for coal mines according to claim 6, characterized in that: A protrusion (5) is provided on the mounting seat (1) at a position on the side of the mounting groove (11).

9. A directional drilling and hole enlarging device for coal mines according to claim 1, characterized in that: The guide member comprises a mounting plate (17), a connecting head (3) is connected to the mounting plate (17), and a directional drilling device is connected to the connecting head (3).

10. A directional drilling and hole enlarging device for coal mines according to claim 1, characterized in that: A pipe connector (2) is provided on the end of the mounting seat (1) away from the guide member.

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