Rock stratum drilling equipment for coal mining

Abstract

The invention relates to the field of rock stratum drilling, and discloses rock stratum drilling equipment for coal mining, which comprises a main body, a fixed frame and a movable frame are arranged at the upper end of the main body, a driving part is arranged at the upper end of the fixed frame, and two fixed parts are arranged on one side of the driving part. The rock stratum drilling equipment comprises a fixed frame, a movable frame, a driving component and an auxiliary component, the fixed component is located at the tail end of the fixed frame and the tail end of the movable frame, the other side of the driving component is provided with the auxiliary component, and the auxiliary component is mainly composed of a driving part and a cleaning part. When the drill rod is additionally arranged, the drill rod in the front keeps rotating and is slowly ejected forwards, so that the situation that the drill rod is difficult to restart or cannot be started and bears large twisting force in a short time can be prevented, and the auxiliary assembly can increase force acting on the drill rod on the premise that the size of equipment is not increased.

Description

Technical Field

[0001] The present invention relates to the technical field of rock formation drilling, and specifically to a rock formation drilling device for coal mine development. Background Art

[0002] In the patent application with the application publication number CN117759146B, it includes a drilling frame body, a guiding track, a lead screw motor I, a mounting frame, a drilling motor, a connecting head, an extension shaft, a drill bit, a storage mechanism, a locking mechanism, and a feeding mechanism. The guiding track is connected to the drilling frame body, and the mounting frame is slidably connected to the guiding track. A lead screw motor I is installed on the guiding track, and the lead screw of the lead screw motor I is threadedly connected to the mounting frame. A drilling motor is installed inside the mounting frame, and a connecting head is connected to the output shaft of the drilling motor. A storage mechanism is provided on the drilling frame body, and the extension shaft is stored inside the storage mechanism. The extension shaft can be installed at the bottom of the connecting head, and the drill bit can be installed at the bottom of the extension shaft or the connecting head. A locking mechanism is provided between the connecting head, the extension shaft, and the drill bit, and the locking mechanism is used to lock the extension shaft and the drill bit. A feeding mechanism for adding the extension shaft is provided on the storage mechanism. Advantages: When assembling the extension shaft, it is only necessary to control the extension shaft to move to align with the connecting head or the previous extension shaft, and then the locking mechanism inside the extension shaft can automatically complete the assembly of the extension shaft, making the operation more convenient and effectively improving the processing efficiency.

[0003] In the prior art including the above-mentioned patent, when adding an extension to the drill pipe, whether it is the traditional manual installation or the mechanical means in the above patent to replace manual docking, during this process, the already installed drill pipe needs to stop rotating, and after the docking is completed, it needs to be restarted. In this way, after the working drill pipe stops, it is extremely easy to cause difficulties in restarting due to insufficient lubrication, and repeated starting and stopping are also likely to cause the drill pipe to be subjected to a deflecting force, which increases with the extension of the drill pipe, and this will also reduce the service life of the drill pipe. Summary of the Invention

[0004] The problem to be solved by the present invention is that when loading and unloading the drill pipe, the working drill pipe needs to stop, which is likely to affect the service life of the drill pipe and also reduce the work efficiency.

[0005] To solve the above technical problems, the technical solution of the present invention is: A rock formation drilling device for coal mine development, including a main body, a fixed frame and a movable frame are provided at the upper end of the main body, a driving component is provided at the upper end of the fixed frame, two fixing components are provided on one side of the driving component, the fixing components are located at the ends of the fixed frame and the movable frame, and an auxiliary component is provided on the other side of the driving component. The auxiliary component is mainly composed of a driving part and a cleaning part.

[0006] Preferably, the fixing frame is rectangularly arranged, and a movable frame is slidably arranged on the outer side of the fixing frame. The movable frame is arranged in a "C" shape and is inserted into the fixing frame from the end thereof.

[0007] Preferably, the driving component is arranged at the front end of the movable frame. The two sides of the lower end of the driving component are connected to the front end of the movable frame. The driving component is slidably connected to the fixing frame. A first hydraulic rod is arranged in the middle of the fixing frame. One end of the first hydraulic rod is fixedly connected to the fixing frame, and the other end of the first hydraulic rod passes through the fixing frame and is fixedly connected to the movable frame.

[0008] Preferably, the fixing components are respectively fixedly arranged at the ends of the fixing frame and the movable frame. The fixing component on the fixing frame is used for fixing the drill pipe, and the fixing component on the movable frame is used for fixing the drill pipe and restricting the radial and axial displacements of the drill pipe.

[0009] Preferably, two second hydraulic rods are fixedly arranged at the lower end of the auxiliary component. The second hydraulic rods are arranged on both sides of the first hydraulic rod, and the other ends of the second hydraulic rods are fixedly connected to the fixing frame.

[0010] Preferably, the auxiliary component includes a housing. Drain ports are opened on both sides of the housing, and the drain ports are located between the front and rear driving parts of the auxiliary component.

[0011] Preferably, an installation block is arranged inside the housing above the drain port. The installation block is arranged in a half-ring shape. A plurality of scraping plates are fixedly arranged at the lower end of the installation block. The scraping plates are made of a material with good toughness. A number of cavities are opened inside the installation block.

[0012] Preferably, the cross-section of the cavity of the installation block is arranged in a T shape. A spring is fixedly arranged in each cavity of the installation block. The spring consists of two groups, with two springs in each group. A mass block is fixedly arranged between the springs. The mass block is arranged in the middle of the cavity and is slidably connected to the installation block.

[0013] Preferably, elastic pieces are fixedly arranged inside both ends of the mass block. The other ends of the elastic pieces are fixedly provided with movable blocks near the outer sides of the mass block. The outer ends of the movable blocks are located outside the installation block. Sunk grooves are opened on both sides of the installation block, and the sunk grooves are located at both ends of the cavity.

[0014] Preferably, cams are rotatably arranged on both sides of the installation block inside the housing. An annular slide rail is opened inside the cam. Four limit bolts are arranged inside the cam and are fixedly connected to the housing. The cam is connected to the driving part through a plug board and rotates together therewith.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) Under the action of the fixed frame, movable frame, driving component, fixing component and auxiliary component, when adding a drill pipe, the drill pipe in the front can be kept rotating and slowly pushed forward. Firstly, this can prevent the drill pipe from insufficient lubrication due to stopping rotation, which may lead to difficulties or inability to start the drill pipe again. It can also prevent the drill pipe from bearing a large torsional force in a short time, thereby extending the service life of the drill pipe. Secondly, it can ensure that the working efficiency will not be significantly reduced, and the fixing component can, to a certain extent, reduce the labor intensity of workers when carrying the drill pipe. Finally, the added auxiliary component can increase the force that can act on the drill pipe without increasing the volume of the equipment, thereby improving the working ability of the device. (2) Under the action of the cleaning part in the auxiliary component, when disassembling the drill pipe, the surface of the drill pipe can be cleaned, reducing the adhesion of mud and other dirt on its surface. Thus, it is convenient for workers to carry it and reduces the risk of slipping. Moreover, the cleaning part can clean itself without manual control and without using an additional driving component, thereby reducing the production cost while achieving the above purposes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic perspective view of the overall structure of the present invention; Figure 2 is a schematic view of the movable frame and the auxiliary component of the present invention after movement; Figure 3 is a schematic view of the internal structure of the mounting frame of the present invention; Figure 4 is a schematic perspective view of the auxiliary component of the present invention; Figure 5 is a schematic view of the internal structure of the auxiliary component of the present invention; Figure 6 is a schematic view of the internal structure of the mounting block of the present invention; Figure 7 is of the present invention Figure 6 the enlarged schematic view of part A in; Figure 8 is a schematic cross-sectional view of the cam of the present invention.

[0017] In the figure: 1, main body; 2, fixed frame; 3, movable frame; 4, driving component; 401, hydraulic rod 1; 5, fixing component; 6, auxiliary component; 601, hydraulic rod 2; 602, outer shell; 603, sewage outlet; 604, mounting block; 605, scraper; 606, spring; 607, mass block; 608, elastic sheet; 609, movable block; 610, sinking groove; 611, cam; 612, limit bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are a part rather than all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts fall within the scope of protection of the present disclosure.

[0019] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The similar words such as "including" or "comprising" used in the present disclosure mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. "Connection" or "connected" and other similar words are not limited to physical or mechanical connections, and may also include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0020] As Figures 1 to 8 shown, a rock drilling device for coal mine mining provided by the present invention includes a main body 1. A fixed frame 2 and a movable frame 3 are arranged at the upper end of the main body 1. A driving component 4 is arranged at the upper end of the fixed frame 2. Two fixing components 5 are arranged on one side of the driving component 4. The fixing components 5 are located at the ends of the fixed frame 2 and the movable frame 3. An auxiliary component 6 is arranged on the other side of the driving component 4. The auxiliary component 6 is mainly composed of a driving part and a cleaning part.

[0021] The fixed frame 2 is arranged in a rectangle. The movable frame 3 is slidably arranged on the outside of the fixed frame 2. The movable frame 3 is arranged in a "C" shape and is inserted into the end of the fixed frame 2.

[0022] The driving component 4 is arranged at the head end of the movable frame 3. The two sides of the lower end of the driving component 4 are connected to the head end of the movable frame 3. The driving component 4 is slidably connected to the fixed frame 2. A first hydraulic rod 401 is arranged in the middle of the fixed frame 2. One end of the first hydraulic rod 401 is fixedly connected to the fixed frame 2, and the other end of the first hydraulic rod 401 passes through the fixed frame 2 and is fixedly connected to the movable frame 3.

[0023] The fixing components 5 are respectively fixedly arranged at the ends of the fixed frame 2 and the movable frame 3. The fixing component 5 on the fixed frame 2 is used to fix the drill pipe, and the fixing component 5 on the movable frame 3 is used to fix the drill pipe and limit the radial and axial displacements of the drill pipe.

[0024] At the lower end of the auxiliary component 6, two second hydraulic rods 601 are fixedly arranged. The second hydraulic rods 601 are arranged on both sides of the first hydraulic rod 401, and the other ends of the second hydraulic rods 601 are fixedly connected to the fixing frame 2.

[0025] The auxiliary component 6 includes a housing 602. Sewage outlets 603 are provided on both sides of the housing 602, and the sewage outlets 603 are located between the front and rear driving parts of the auxiliary component 6.

[0026] Inside the housing 602, above the sewage outlet 603, an installation block 604 is arranged. The installation block 604 is arranged in a half-ring shape. At the lower end of the installation block 604, a plurality of scraping plates 605 are fixedly arranged. The scraping plates 605 are made of materials with good toughness. A number of cavities are provided inside the installation block 604.

[0027] The cross-section of the cavity of the installation block 604 is arranged in a T shape. In each cavity of the installation block 604, a spring 606 is fixedly arranged. The spring 606 consists of two groups, with two in each group. A mass block 607 is fixedly arranged between the springs 606. The mass block 607 is arranged in the middle of the cavity, and the mass block 607 is slidably connected to the installation block 604.

[0028] Inside the two ends of the mass block 607, elastic pieces 608 are fixedly arranged. The other ends of the elastic pieces 608 are fixedly provided with movable blocks 609 near the outside of the mass block 607. The outer ends of the movable blocks 609 are located outside the installation block 604. Sunk grooves 610 are provided on both sides of the installation block 604, and the sunk grooves 610 are located at both ends of the cavity.

[0029] Inside the housing 602, on both sides of the installation block 604, cams 611 are rotatably arranged. An annular slide rail is provided inside the cams 611. Four limit bolts 612 are arranged inside the cams 611, and the limit bolts 612 are fixedly connected to the housing 602. The cams 611 are connected to the driving parts through plug plates and rotate together.

[0030] The working principle and usage process of the present invention: When it is necessary to perform an installation operation on the drill pipe: The driving parts inside the auxiliary component 6 clamp the drill pipe and maintain the rotation speed before the driving component 4 releases, so that the rotation speed is the same as that of the driving component 4; After the driving component 4 releases the drill pipe, the rotation speed of the auxiliary component 6 decreases to half of the rotation speed of the driving component 4, and its propulsion speed also decreases accordingly, so that the drill pipe in the front rotates and advances slowly; Then, the driving component 4 moves backward under the action of the hydraulic rod 401, and the fixed component 5 located at the upper end of the movable frame 3 moves together and lifts the entire drill rod. When the movable frame 3 moves to the rear end, the driving component 4 clamps the new drill rod. At this time, the fixed component 5 located on the fixed frame 2 releases the drill rod. Then, the driving component 4 moves forward with the drill rod. During the forward movement, the speed of the new drill rod can be gradually increased to twice that of the previous drill rod, so that the new drill rod can be connected to the previous drill rod. After the connection is completed, the driving component 4 releases the drill rod again and returns to the end to re-clamp it. At this time, the overall drill rod speed increases and returns to normal drilling speed. When the newly installed drill rod has reached half of its stroke, the worker can place the new drill rod on the fixing component 5 and clamp the drill rod on the fixing frame 2 to wait for the next installation; When installing a new drill rod, it can also be placed while the driving component 4 is docking. When the driving component 4 is reset, the position of the drill rod can be corrected and during drilling, the fixing component 5 on the movable frame 3 is used to clamp the drill rod so that the drill rod moves together. After moving to the appropriate position, the current fixing component 5 is released and the drill rod is clamped by another fixing component 5 and waits for the next installation. It is worth mentioning that when the hydraulic rod 1 401 of the control driving component 4 is damaged or cannot be used, the hydraulic rod 2 601 under the auxiliary component 6 can replace the hydraulic rod 1 401 to extract the drill rod or continue drilling; When disassembling the drill pipe: When the driving component 4 extracts the drill rod, the drill rod rotates and passes under the scraper 605. The mud and other dirt adhering to its surface can be scraped off by the scraper 605 and discharged through the sewage outlet 603. As the driving part in the auxiliary component 6 rotates, the cam 611 can be driven to rotate and the movable block 609 can be used to push the mass block 607 in the direction of rotation. When it moves to the sink 610, the movable block 609 moves upward under the action of the spring 608 and leaves the range of the cam 611. At this time, the mass block 607 can move repeatedly in the cavity under the action of the spring 606, and the vibration generated can shake off the dirt on the surface of the scraper 605 and discharge it. It is worth mentioning that when disassembling the drill rod, the rotation speed of the auxiliary component 6 needs to be increased to twice the rotation speed of the driving component 4.

[0031] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A rock drilling equipment for coal mine exploitation, comprising a main body (1), characterized in that: A fixing frame (2) and a movable frame (3) are provided at the upper end of the main body (1). A driving component (4) is provided at the upper end of the fixing frame (2). Two fixing components (5) are provided on one side of the driving component (4). The fixing components (5) are located at the ends of the fixing frame (2) and the movable frame (3). An auxiliary component (6) is provided on the other side of the driving component (4). The auxiliary component (6) is mainly composed of a driving part and a cleaning part.

2. The rock stratum drilling equipment for coal mine exploitation according to claim 1, characterized in that: The fixing frame (2) is rectangularly arranged. The movable frame (3) is slidably arranged on the outside of the fixing frame (2). The movable frame (3) is in a "C" shape and is inserted into the fixing frame (2) from the end.

3. A rock drilling equipment for coal mine exploitation according to claim 1, characterized in that: The driving component (4) is arranged at the front end of the movable frame (3). The two lower sides of the driving component (4) are connected to the front end of the movable frame (3). The driving component (4) is slidably connected to the fixing frame (2). A first hydraulic rod (401) is arranged in the middle of the fixing frame (2). One end of the first hydraulic rod (401) is fixedly connected to the fixing frame (2), and the other end of the first hydraulic rod (401) passes through the fixing frame (2) and is fixedly connected to the movable frame (3).

4. A rock drilling equipment for coal mine exploitation according to claim 1, characterized in that: The fixing components (5) are respectively fixedly arranged at the ends of the fixing frame (2) and the movable frame (3). The fixing component (5) on the fixing frame (2) is used for fixing the drill pipe, and the fixing component (5) on the movable frame (3) is used for fixing the drill pipe and restricting the radial and axial displacements of the drill pipe.

5. A rock drilling equipment for coal mine exploitation according to claim 1, characterized in that: Two second hydraulic rods (601) are fixedly arranged at the lower end of the auxiliary component (6). The second hydraulic rods (601) are arranged on both sides of the first hydraulic rod (401). The other ends of the second hydraulic rods (601) are fixedly connected to the fixing frame (2).

6. The rock drilling equipment for coal mine exploitation according to claim 1, characterized in that: The auxiliary component (6) includes a housing (602). Sewage outlets (603) are opened on both sides of the housing (602). The sewage outlets (603) are located between the front and rear driving parts of the auxiliary component (6).

7. The rock drilling equipment for coal mine development according to claim 6, characterized in that: An installation block (604) is arranged inside the housing (602) above the sewage outlet (603). The installation block (604) is in a semi-circular ring shape. A plurality of scraping plates (605) are fixedly arranged at the lower end of the installation block (604). The scraping plates (605) are made of materials with good toughness. A number of cavities are opened inside the installation block (604).

8. A rock drilling device for coal mine exploitation according to claim 7, characterized in that: The cross-section of the cavity of the installation block (604) is T-shaped. A spring (606) is fixedly arranged in each cavity of the installation block (604). The spring (606) consists of two groups, with two in each group. A mass block (607) is fixedly arranged between the springs (606). The mass block (607) is arranged in the middle of the cavity and is slidably connected to the installation block (604).

9. The rock drilling equipment for coal mine exploitation according to claim 8, characterized in that: Both ends of the mass block (607) are fixedly provided with elastic pieces (608) inside. The other ends of the elastic pieces (608) are fixedly provided with movable blocks (609) near the outer sides of the mass block (607). The outer ends of the movable blocks (609) are located outside the mounting block (604). Sinking grooves (610) are formed on both sides of the mounting block (604). The sinking grooves (610) are located at both ends of the cavity.

10. A rock drilling equipment for coal mine exploitation according to claim 9, characterized in that: Cams (611) are rotatably provided on both sides of the mounting block (604) inside the housing (602). An annular slide rail is formed inside the cams (611). Four limit bolts (612) are provided inside the cams (611). The limit bolts (612) are fixedly connected to the housing (602). The cams (611) are connected to the driving part through inserting plates and rotate together.

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