Equipment of CFG long spiral drilling machine drill bit

Abstract

The utility model discloses a CFG long spiral drilling machine drill bit device which comprises a hollow slurry feeding pipe, a fixing device is arranged on the hollow slurry feeding pipe, a rotating motor is arranged on the fixing device, and a slurry feeding pipe is arranged on the side face of the fixing device. Rotating blades are arranged along the outer circumference of the hollow slurry feeding pipe, and soil discharging grooves are formed in the rotating blades; a vibration ring is arranged in the drill bit, and a plurality of grout outlets are further formed in the drill bit. By optimizing the structure of the drill bit, the abrasion resistance, adaptability and drilling efficiency of the drill bit are improved, and the problems that an existing drill bit is poor in adaptability to different geologies, unsmooth in soil discharging and insufficient in abrasion resistance are solved, so that the construction efficiency is improved, and the construction cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, and more specifically to a device for a CFG long spiral drilling bit. Background Technology

[0002] CFG piles, as a commonly used foundation treatment method, are widely used in high-rise buildings, highways, bridges, and other engineering fields. Long spiral drilling rigs, as the main equipment for CFG pile construction, have drill bit designs that directly affect construction efficiency and pile quality. Currently, common long spiral drilling rig drill bits on the market have several problems. Firstly, existing drill bit structures are relatively simple, resulting in poor adaptability to different geological conditions. When facing complex geological conditions, such as hard rock layers or soft soil layers with high water content, the drilling efficiency of the drill bit is low, and it is prone to jamming and slippage, seriously affecting the construction progress. Secondly, existing drill bits have defects in soil removal; poor soil removal can lead to blockage inside the drill rod, increasing equipment wear and potentially causing safety accidents. Furthermore, some drill bits have insufficient wear resistance and short service life, and frequent drill bit replacements increase construction costs. Utility Model Content

[0003] This invention provides a device for a CFG long spiral drilling rig drill bit to solve the problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides a device for a CFG long spiral drilling rig drill bit, comprising: a hollow grout delivery pipe, a fixing device on the hollow grout delivery pipe, a rotary motor on the fixing device, and a grout delivery pipe on the side of the fixing device; rotating blades along the outer circumference of the hollow grout delivery pipe, and soil discharge grooves on the rotating blades; a vibrating ring inside the drill bit, and several grout outlets on the drill bit.

[0005] Preferably, the slurry delivery pipe is provided with several vent holes.

[0006] Preferably, the fixing device is equipped with a frequency converter to control the vibration frequency of the vibrating ring.

[0007] Compared with the prior art, the present invention has the following advantages:

[0008] Smooth Soil Removal: The efficient soil removal structure ensures that soil and debris can be removed in a timely and smooth manner, reducing the risk of drill rod blockage, reducing equipment wear, and improving the safety and stability of construction.

[0009] Excellent wear resistance: The wear-resistant reinforced structure significantly enhances the wear resistance of the drill bit, extends its service life, reduces the frequency of drill bit replacement, and lowers construction costs.

[0010] Improved drilling efficiency: The optimized auger blade design and soil discharge chute significantly improve the drill bit's breaking capacity and soil transport efficiency. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0012] Figure 1 The attached figure is a structural schematic diagram of this utility model.

[0013] Figure 2 The attached figure is a schematic diagram of the drill bit structure of this utility model.

[0014] Reference numerals in the attached drawings: 1. Rotary motor; 2. Grout delivery pipe; 3. Fixing device; 4. Grout conveying pipe; 5. Rotating blade; 6. Soil discharge trough; 7. Vent hole; 8. Drill bit; 9. Grout outlet; 10. Vibrating ring. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly. Furthermore, in the description of this application, unless otherwise stated, the term "multiple" refers to two or more. The term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0017] Please see the appendix Figure 1-2 The present invention discloses a CFG long spiral drilling rig drill bit device, comprising: a hollow grout delivery pipe 4, a fixing device 3 on the hollow grout delivery pipe 4, a rotary motor 1 on the fixing device 3, and a grout delivery pipe 2 on the side of the fixing device 3; a rotating blade 5 along the outer circumference of the hollow grout delivery pipe 4, and a soil discharge groove 6 on the rotating blade 5; a vibration ring 10 inside the drill bit 8, and a plurality of grout outlets 9 on the drill bit 8.

[0018] The hollow grout delivery pipe 4 enables grout delivery, ensuring the quality of pile formation during CFG pile construction. The rotary motor 1 on the fixing device 3 provides power to the drill bit 8 and the vibrating ring 10, ensuring stable rotation of the drill bit 8 for drilling operations. The vibrating ring 10 generates vibration to loosen the soil layer. The grout delivery pipe 2 is installed on the side, ensuring a rational grout delivery path and enabling efficient delivery of grout to the working area of ​​the drill bit 8, thus improving construction efficiency.

[0019] The rotating blades 5, arranged along the outer circumference of the hollow grout delivery pipe 4, can promptly discharge the cut soil when the drill bit 8 rotates, ensuring the continuity of drilling. The soil discharge grooves 6 on the rotating blades 5 further enhance the soil discharge capacity, making the soil discharge smoother, reducing soil accumulation in the borehole, lowering construction resistance, and improving construction efficiency.

[0020] The vibrating ring 10 inside the drill bit 8 generates micro-vibrations during drilling via a vibration source, which helps loosen the soil, reduce stuck drill bits, and improve drilling efficiency. Vibration further loosens the soil around the drill bit 8, facilitating drilling and allowing the grout to mix better with the soil, thus improving pile quality. Several grout outlets 9 on the drill bit 8 ensure that the grout is evenly distributed within the borehole, guaranteeing the quality of pile formation.

[0021] To further optimize the above technical solution, the slurry delivery pipe 2 is provided with several vent holes 7.

[0022] The vent 7 can expel air from the pipe during the grouting process, preventing air from accumulating inside the pipe and forming air resistance, ensuring smooth grouting, improving construction efficiency, and preventing unstable grouting pressure caused by air resistance, thus ensuring the quality of the pile.

[0023] To further optimize the above technical solution, the fixing device 3 is equipped with a frequency converter, which can control the vibration frequency of the vibration ring 10.

[0024] The frequency converter can control the vibration frequency of the vibrating ring 10. According to different geological conditions and construction requirements, the vibration frequency can be flexibly adjusted so that the drill bit 8 can better adapt to various complex construction environments, improve construction efficiency and pile quality. For example, in harder soil layers, the vibration frequency can be appropriately increased to enhance the loosening effect of the soil and facilitate drilling; in softer soil layers, the vibration frequency can be reduced to prevent excessive disturbance of the soil.

[0025] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for a CFG long spiral drilling rig drill bit, characterized in that, include: A hollow grout delivery pipe (4) is provided with a fixing device (3), a rotary motor (1) is provided on the fixing device (3), and a grout delivery pipe (2) is provided on the side of the fixing device (3); a rotating blade (5) is provided along the outer perimeter of the hollow grout delivery pipe (4), and a soil discharge trough (6) is provided on the rotating blade (5); a vibrating ring (10) is provided inside the drill bit (8), and several grout outlets (9) are also provided on the drill bit (8).

2. The device for the CFG long spiral drilling rig bit according to claim 1, characterized in that, The slurry delivery pipe (2) is provided with several vent holes (7).

3. The device for the CFG long spiral drilling rig bit according to claim 1, characterized in that, The fixing device (3) is equipped with a frequency converter, which can control the vibration frequency of the vibration ring (10).

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