Rotary drilling rig power head capable of assisting installation

Abstract

The utility model provides a rotary drilling rig power head capable of assisting installation, which belongs to the technical field of rotary drilling rigs and comprises a power head, one side of the power head is connected with a support, and the support is fixedly connected with a first slider capable of vertically sliding on a drilling mast. The support is connected with a vertical rod, the top of the vertical rod is connected with a limiting assembly, the limiting assembly can reduce shaking of the drill rod when the drill rod is hoisted and installed, and the drill rod makes contact with the limiting assembly firstly when the drill mast is lifted up. The limiting assembly is arranged, the drill rod is firstly in contact with the buffering arc plate of the limiting assembly during installation, then the drill mast is continuously erected under buffering of the reset spring, the drill rod is gradually erected, it can be guaranteed that the drill rod cannot collide with the drill mast all the time, meanwhile, the drill rod is limited, and the drill rod stably moves in the installation process; and the drill rod can stably move to the upper part of the driving hole of the power head.

Description

Technical Field

[0001] This utility model belongs to the field of rotary drilling rig technology, specifically relating to a rotary drilling rig power head that can assist in installation. Background Technology

[0002] The connection between the drill rod and the power head of a rotary drilling rig is a crucial step in its operation. A correct connection ensures stable equipment operation and improves construction efficiency and safety. During installation, the rotary drilling rig should first be placed on a stable, firm surface, and the power source should be turned off to prevent accidents caused by accidental starting during the connection process. Next, the operator must use a pulley system to slowly lift the drill rod. First, the drill mast is tilted forward to connect the drill rod to the pulley system. Then, the drill mast is slowly straightened until the drill rod is roughly aligned with the power head interface before being lowered to connect the drill rod to the power head. During the actual construction process, the balance and stability of the drill rod must be constantly monitored during hoisting to avoid swaying or collisions. This requires a high level of operator skill. Operating too quickly can cause collisions between the drill rod and the drill mast, and between the drill rod and the power head, resulting in damage to the drill rod. Therefore, a power head that assists in drill rod installation is essential, reducing collisions during installation and lessening the need for operator skill. Utility Model Content

[0003] To address the problems existing in the prior art, a rotary drilling rig power head that can assist in installation is proposed.

[0004] The technical solution of this utility model to solve the technical problem is as follows: a rotary drilling rig power head that can assist in installation, including a power head, a bracket connected to one side of the power head, a first slider that can slide vertically on the drill mast fixedly connected to the bracket; a vertical rod connected to the bracket, a limiting component connected to the top of the vertical rod, the limiting component can reduce the shaking of the drill rod when the drill rod is lifted for installation, and the drill rod contacts the limiting component first when the drill mast is lifted.

[0005] Preferably, the limiting component includes an outer sleeve, which is fixed to the upright. A crossbar is slidably connected inside the outer sleeve, with one end of the crossbar extending into the outer sleeve and the other end rotatably connected to a buffer arc plate. A return spring is connected between the end of the crossbar and the bottom end of the outer sleeve. A limiting block is connected to the bottom of the crossbar, and the end of the limiting block can press against the back of the buffer arc plate to limit the buffer arc plate. An annular stop is connected to the inner wall of the middle part of the outer sleeve to limit the crossbar.

[0006] Preferably, a guide groove is also provided on the inner wall of the sleeve, and a guide block is connected to the corresponding crossbar to guide the crossbar.

[0007] Preferably, the inner wall of the buffer arc plate is provided with a soft foot pad layer to reduce damage to the drill rod.

[0008] Preferably, the limiting component is connected to the power head via a connecting component. The connecting component includes two U-shaped clamps arranged opposite each other. One side of the U-shaped clamp is inserted into a groove opened at the bottom of the upright, and the other side is connected by a fixing bolt. The two U-shaped clamps are fitted around the bracket to realize the connection between the limiting component and the power head.

[0009] Preferably, one end of the U-shaped clamp that is inserted into the groove is connected to a baffle, and a locking nut is connected to the baffle, which is used to fix the clamp to the upright.

[0010] Preferably, a second slider that can slide vertically along the mast is also connected to the back of the mast.

[0011] Preferably, it also includes a coaxial assembly, which includes a fixed plate vertically connected to the power head, an electric telescopic cylinder connected to the fixed plate, a limiting arc plate connected to the telescopic end of the electric telescopic cylinder, a guide block connected to the bottom of the limiting arc plate, and a guide groove opened corresponding to the top of the power head. The guide block slides in the guide groove to guide the movement of the limiting arc plate. When the electric telescopic rod retracts, it can pull the end of the drill rod toward the drive hole of the power head.

[0012] Compared with existing technologies, the above technical solution has the following advantages or beneficial effects:

[0013] 1. This utility model, by setting a limiting component, ensures that the drill rod first contacts the buffer arc plate of the limiting component during installation, and then the drill mast is continuously straightened under the buffer of the return spring, so that the drill rod gradually becomes vertical. This ensures that the drill rod can never collide with the drill mast, and at the same time, it limits the drill rod, so that the drill rod can move stably during installation, ensuring that the drill rod can move stably to the upper part of the drive hole of the power head.

[0014] 2. This utility model uses a coaxial assembly to guide the drill rod as it falls into the drive hole. Under the action of the limiting assembly and the coaxial assembly, the drill rod and the drive hole are coaxially set, ensuring that the drill rod can be aligned and inserted into the drive hole. Attached Figure Description

[0015] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0018] Figure 3 This is a cross-sectional view of the limiting component.

[0019] Figure 4 This is a cross-sectional view of the connecting components.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Power head; 11. Drive hole; 2. Bracket; 3. Connecting assembly; 31. U-shaped clamp; 32. Groove; 33. Baffle; 34. Locking nut; 35. Fixing bolt; 4. First slider; 5. Upright rod; 6. Limiting assembly; 61. Outer sleeve; 62. Crossbar; 63. Buffer arc plate; 64. Guide groove; 65. Guide block; 66. Return spring; 67. Ring stop block; 68. Limiting block; 7. Second slider; 8. Coaxial assembly; 81. Fixing plate; 82. Electric telescopic cylinder; 83. Limiting arc plate; 84. Guide block; 85. Guide groove. Detailed Implementation

[0022] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present invention omits descriptions of well-known components and processing techniques and processes to avoid unnecessarily limiting the present invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0023] Example 1:

[0024] Please see Figures 1-4To prevent the drill rod from colliding with the drill mast during the installation of the rotary drilling rig drill rod and the power head, this embodiment proposes a rotary drilling rig power head that can assist in installation. The power head includes a power head 1, a bracket 2 connected to one side of the power head 1, a first slider 4 that can slide vertically on the drill mast fixedly connected to the bracket 2, a vertical rod 5 connected to the bracket 2, and a limiting component 6 connected to the top of the vertical rod 5. The limiting component 6 can reduce the shaking of the drill rod when it is lifted for installation, and the drill rod contacts the limiting component 6 first when the drill mast is lifted.

[0025] The limiting component 6 includes an outer sleeve 61, which is fixed to the upright 5. A crossbar 62 is slidably connected inside the outer sleeve 61. One end of the crossbar 62 extends into the outer sleeve 61, and the other end is rotatably connected to a buffer arc plate 63. The inner wall of the buffer arc plate 63 is provided with a soft foot pad to reduce damage to the drill rod. A return spring 66, which is a compression spring, is connected between the end of the crossbar 62 and the bottom end of the outer sleeve 61. The bottom of the crossbar 62 is connected to a limiting block 68, the end of which can press against the back of the buffer arc plate 63 to limit the buffer arc plate 63. An annular stop is connected to the inner wall of the middle part of the outer sleeve 61 to limit the crossbar 62. A guide groove 64 is also provided on the inner wall of the sleeve, and a guide block 65 is connected to the crossbar 62 to guide the crossbar 62.

[0026] Working principle:

[0027] During installation, the drill mast is first tilted and the drill rod is hoisted. After hoisting, the drill mast is straightened. During the straightening process, the bottom of the drill rod first contacts the buffer arc plate 63 of the limiting component 6. After contact, the buffer arc plate 63 adheres to the side wall of the drill rod under the action of the drill rod's gravity and rotates continuously as the drill mast is straightened. At this time, the drill mast and drill rod can be straightened quickly. Because the drill rod is limited by the limiting component 6, its movement trajectory will be relatively fixed, so it will not shake much and will not collide with the drill mast. After straightening, the limiting block 68 blocks the buffer arc plate 63 and the ring block 67 blocks the crossbar 62, so that the buffer arc plate 63 can no longer rotate, thus ensuring that the drill rod is vertical. At this time, the drill rod can be lowered to connect the drill rod to the power head 1, which protects the drill rod well.

[0028] Disassembly can be performed by simply reversing the operation; the crossbar 62 can pop out under the action of the return spring 66, ready for the next installation.

[0029] Example 2:

[0030] Please see Figure 3To facilitate the disassembly and replacement of the limiting component 6, in this embodiment, the limiting component 6 is connected to the power head 1 through the connecting component 3. The connecting component 3 includes two U-shaped clamps 31 arranged opposite to each other. One side of the U-shaped clamp 31 is inserted into the groove 32 opened at the bottom of the upright 5, and the other side is connected by a fixing bolt 35. The two U-shaped clamps 31 are fitted around the bracket 2 to realize the connection between the limiting component 6 and the power head 1.

[0031] One end of the U-shaped clamp 31 that is inserted into the groove 32 is connected to the baffle 33. The baffle 33 is connected to the locking nut 34, and the locking nut 34 is used to fix the connection with the upright 5.

[0032] In addition, the back of the upright 5 is also connected to a second slider 7 that can slide vertically along the drill mast. This allows the power head 1 to be set on the power head 1 independently without being connected to the power head 1, or to be connected to the bracket 2 of the power head 1 through the connecting component 3 and to the drill mast through the second slider 7, thus ensuring the stability of its buffering and limiting operation.

[0033] Example 3:

[0034] Please see Figures 1-2 The rest is the same as in Embodiment 1, except that this embodiment also includes a coaxial assembly 8. The coaxial assembly 8 includes a fixed plate 81 vertically connected to the power head 1. An electric telescopic cylinder 82 is connected to the fixed plate 81. The telescopic end of the electric telescopic cylinder 82 is connected to a limiting arc plate 83. The bottom of the limiting arc plate 83 is connected to a guide block 84. A guide groove 85 is opened at the top of the power head 1. The guide block 84 slides in the guide groove 85 to guide the movement of the limiting arc plate 83. When the electric telescopic rod retracts, it can pull the end of the drill rod toward the drive hole 11 of the power head 1.

[0035] During use, after the drill rod is protected by the limiting component 6 to ensure it is vertical, the drill rod moves downward under the action of the pulley block of the rotary drilling rig. However, since the connection between the drill rod and the drive hole 11 of the power head 1 requires high precision, the coaxial component 8 is set on the top of the power head 1. The limiting component 6 provides a thrust to the inside of the drill rod, and the coaxial component 8 provides a thrust to the outside, clamping and positioning the drill rod. When the drill rod is lowered into the working range of the coaxial component 8, the electric telescopic rod is activated, so that the limiting arc plate 83 clamps and positions the drill rod from the outside, ensuring that the drill rod and the power head 1 are coaxially set without the need for manual alignment, which can improve installation efficiency.

[0036] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

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