Pile foundation drilling device for hydraulic engineering

By combining a tracked chassis with a universal joint and a hydraulic positioning system, the problem of easy tipping over of pile foundation drilling equipment in complex terrain is solved, and stable positioning and drilling accuracy of the equipment are achieved in different terrains.

CN224413546UActive Publication Date: 2026-06-26PINGYUANHANYU ENG CO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PINGYUANHANYU ENG CO
Filing Date
2025-07-24
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing pile foundation drilling equipment is prone to displacement or overturning in complex terrain, affecting construction safety and drilling accuracy.

Method used

Employing a tracked chassis and adjustable mounting components, including universal joints and a hydraulic positioning system, ensures the stability of the equipment on various terrains and the vertical positioning of the drill pipe.

Benefits of technology

It improves the stability of the equipment in complex terrain, prevents tipping, and ensures the verticality of the borehole and construction safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to pile foundation drilling technical field discloses a pile foundation drilling device for hydraulic engineering, including drill head and control room, the drill head top rotatory connection has the drill rod, the drill rod one side is provided with the track, control room one side fixedly connected with the engine, the engine bottom rotatory connection has the track -laying, the track -laying both sides rotatory connection has a plurality of telescopic legs, telescopic leg bottom is provided with fixed assembly, the fixed assembly includes the foot, the foot is located telescopic leg bottom, the foot top rotatory connection has the universal shaft, the universal shaft outer wall rotatory connection has the upper bar, the upper bar top is provided with the lifting assembly. In the utility model, through the electric box drive screw rod rotation makes the foot and ground contact, the universal shaft makes the foot adapt to the ground of different angles, reaches the purpose of fixed equipment, makes equipment can adapt to different topography, solved the problem that equipment is easy to shift or dump under the complex topography.
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Description

Technical Field

[0001] This utility model relates to the field of pile foundation drilling, and in particular to a pile foundation drilling device for water conservancy projects. Background Technology

[0002] Piling equipment for water conservancy projects is a key piece of equipment in the foundation construction of water conservancy projects. It is mainly used in the foundation pile construction of projects such as river dams, dikes, and water conservancy hubs. It uses a power-driven drill bit to break and cut the foundation soil and rock to form pile holes that meet the design requirements, providing working space for subsequent pile foundation pouring. It is an important construction equipment to ensure the structural stability of water conservancy projects.

[0003] In existing technologies, commonly used pile foundation drilling equipment typically consists of a frame, power mechanism, drill rod, drill bit, and feed mechanism. The frame serves as the load-bearing foundation for the equipment and is used to install the various components. The power mechanism usually uses an electric motor or hydraulic motor, which transmits power to the drill rod through a transmission system, driving the drill bit to rotate at high speed. The feed mechanism controls the vertical feed of the drill rod and drill bit through a hydraulic cylinder or lead screw structure to achieve drilling operations. During the drilling process, some equipment is also equipped with a slag removal system, which removes the slag generated during drilling from the hole through mud circulation or spiral blades.

[0004] In water conservancy engineering construction, drilling operations often face complex terrains such as soft soil foundations on riverbanks, slopes, and uneven riverbeds. Existing pile foundation drilling equipment has limited adjustment capabilities in its support structure. When operating in such terrains, the bottom of the equipment is not in contact with the ground, resulting in uneven stress on the support points. During drilling, the interaction force between the drill bit and the soil generates horizontal reaction forces. In addition, the uneven weight distribution of the equipment itself makes it prone to horizontal displacement during operation. When there is a slope on the working surface or insufficient bearing capacity of the local foundation, the center of gravity of the equipment shifts, and the support structure cannot provide sufficient anti-overturning moment, causing the equipment to tip over, affecting construction safety and drilling accuracy. Therefore, a pile foundation drilling device for water conservancy engineering is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a pile foundation drilling device for water conservancy projects, which aims to improve the problem of equipment being prone to displacement or tipping over in complex terrain in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pile foundation drilling device for water conservancy projects includes a drill bit and a control room. A drill rod is rotatably connected to the top of the drill bit. A positioning component is provided on the outer wall of the drill rod. A track is provided on one side of the drill rod. The inner wall of the groove on the track engages with the side wall of the drill rod. An engine is fixedly connected to one side of the control room. A track is rotatably connected to the bottom of the engine. Multiple telescopic legs are rotatably connected to both sides of the track. A fixing component is provided at the bottom of the telescopic legs.

[0008] The fixing component includes a base foot located at the bottom of the telescopic leg. A universal joint is rotatably connected to the top of the base foot, and an upper rod is rotatably connected to the outer wall of the universal joint. A lifting component is provided at the top of the upper rod.

[0009] As a further description of the above technical solution:

[0010] The lifting assembly includes a threaded rod, which is rotatably connected to the inside of the upper rod and threadedly connected to the inner wall of the upper rod. An electrical box is fixedly connected to the top of the threaded rod, and a housing is fixedly connected to the outer wall of the electrical box.

[0011] As a further description of the above technical solution:

[0012] The upper rod is slidably connected to the inner wall of the outer casing, and a fixing plate is fixedly connected to the inner wall of the outer casing. The threaded rod passes through the fixing plate and extends to the outside, and the outer wall of the outer casing is fixedly connected to the inner wall of the telescopic leg.

[0013] As a further description of the above technical solution:

[0014] The positioning component includes a hydraulic rod located on one side of the track, with one end of the hydraulic rod fixedly connected to the side of the track.

[0015] As a further description of the above technical solution:

[0016] The other end of the hydraulic rod is rotatably connected to a rotating rod, and both ends of the rotating rod are rotatably connected to multiple outer rings.

[0017] As a further description of the above technical solution:

[0018] The inner ring is rotatably connected to the inner wall of the outer ring, and a fixing block is fixedly connected to one side of the inner ring.

[0019] As a further description of the above technical solution:

[0020] One side of the fixing block is fixedly connected to the inner wall of the track, and multiple outer rotating plates are rotatably connected to both ends of the outer ring. A positioning rod is rotatably connected to the inner wall of the outer rotating plate.

[0021] As a further description of the above technical solution:

[0022] Multiple inner rotating plates are rotatably connected to both ends of the inner ring. The inner wall of the inner rotating plate is rotatably connected to the other end of the positioning rod. A sliding shell is rotatably connected to the outer wall of each positioning rod, and the sliding shell is in contact with the outer wall of the drill rod.

[0023] This utility model has the following beneficial effects:

[0024] In this utility model, the screw rod is rotated by the electrical box to make the foot contact the ground, and the universal joint allows the foot to adapt to different angles of the ground, thereby achieving the purpose of fixing the equipment and enabling the equipment to adapt to different terrains, thus solving the problem of equipment being easy to shift or tip over in complex terrains.

[0025] In this invention, the outer rotating plate on the outer ring is moved and rotated by a hydraulic rod. At this time, multiple positioning rods and sliding shells tighten inward and come into contact with the drill rod. The sliding shell ensures that the drill rod can slide vertically, thereby fixing the horizontal position of the drill rod and ensuring that the position of the drill bit is the same as the set direction. This solves the problem that the force direction of the component deviates from the design value due to the tilt of the drill bit, which makes it impossible to guarantee the stability of the structure. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a pile foundation drilling device for water conservancy projects proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the inner ring structure of a pile foundation drilling device for water conservancy engineering proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the universal joint structure of a pile foundation drilling device for water conservancy projects proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the threaded rod structure of a pile foundation drilling device for water conservancy projects proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the sliding shell structure of a pile foundation drilling device for water conservancy projects proposed in this utility model.

[0031] Legend:

[0032] 1. Drill bit; 2. Inner ring; 3. Drill rod; 4. Track; 5. Control room; 6. Engine; 7. Foot; 8. Track; 9. Outer ring; 10. Hydraulic rod; 11. Rotating rod; 12. Upper rod; 13. Housing; 14. Universal joint; 15. Telescopic leg; 16. Electrical box; 17. Threaded rod; 18. Fixing plate; 19. Outer rotating plate; 20. Positioning rod; 21. Sliding shell; 22. Fixing block; 23. Inner rotating plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a pile foundation drilling device for water conservancy projects, including a drill bit 1 and a control room 5. The drill bit 1 is used to break soil and rock layers to achieve drilling function. A drill rod 3 is rotatably connected to the top of the drill bit 1. The drill rod 3 is used to transmit power and torque to drive the drill bit 1 to rotate. A positioning component is provided on the outer wall of the drill rod 3. A track 4 is provided on one side of the drill rod 3. The inner wall of the groove on the track 4 is engaged with the side wall of the drill rod 3. The track 4 is used to guide the movement trajectory of the drill rod 3 to ensure the verticality and stability of the drilling. An engine 6 is fixedly connected to one side of the control room 5. The engine 6 provides power to the entire device and drives the track 8 and the drill bit 1 to work. The track 8 is used to support and move the entire device. The track 8 is rotatably connected to the bottom of the engine 6. Multiple telescopic legs 15 are rotatably connected to both sides of the track 8. The telescopic legs 15 are used to adjust the height and level of the device to ensure working stability. A fixing component is provided at the bottom of the telescopic legs 15.

[0035] The fixing assembly includes a base foot 7, located at the bottom of the telescopic leg 15. The base foot 7 increases the contact area with the ground, improving the stability of the device. A universal joint 14 is rotatably connected to the top of the base foot 7, allowing the base foot 7 to be flexibly adjusted in multiple directions to adapt to uneven ground. An upper rod 12 is rotatably connected to the outer wall of the universal joint 14. The upper rod 12 supports and connects the lifting assembly, transmitting lifting force. The lifting assembly is located at the top of the upper rod 12, and includes a threaded rod 17 located inside the upper rod 12. The outer wall of the threaded rod 17 is threadedly connected to the inner wall of the upper rod 12. The threaded rod 17 rotates to raise and lower the upper rod 12, adjusting the height of the device. An electrical box 16 is fixedly connected to the top of the threaded rod 17, providing power to drive the threaded rod 17 to rotate. A housing 13 is fixedly connected to the outer wall of the electrical box 16, protecting the internal components and preventing dust and debris from entering. The inner wall of the upper rod 12 is slidably connected to the inner wall of the housing 13. A fixing plate 18 is fixedly connected to the inner wall of the housing 13, through which the threaded rod 17 passes. The fixing plate 18 is used to fix the threaded rod 17, ensuring its movement stability. The outer wall of the housing 13 is fixedly connected to the inner wall of the telescopic leg 15.

[0036] Reference Figure 1 , Figure 2 and Figure 5The positioning assembly includes a hydraulic rod 10, located on one side of the track 4. One end of the hydraulic rod 10 is fixedly connected to the side of the track 4, providing thrust to drive the rotating rod 11. The other end of the hydraulic rod 10 is rotatably connected to the rotating rod 11, which is rotatably connected to multiple outer rings 9. The rotating rod 11 converts the linear motion of the hydraulic rod 10 into the rotational motion of the outer rings 9. An inner ring 2 is rotatably connected to the inner wall of the outer rings 9. The outer rings 9 and inner rings 2 cooperate to realize the expansion and contraction of the positioning rod 20. A fixing block 22 is fixedly connected to one side of the inner ring 2, and one side of the fixing block 22 is fixedly connected to the inner wall of the track 4. The fixing block 22 is used for fixing... The inner ring 2 is fixed to ensure its stability. Multiple outer rotating plates 19 are rotatably connected to both ends of the outer ring 9. Positioning rods 20 are rotatably connected to the inner walls of the outer rotating plates 19. The outer rotating plates 19 and the inner rotating plates 23 are used to connect and drive the positioning rods 20 to achieve the positioning function. Multiple inner rotating plates 23 are rotatably connected to both ends of the inner ring 2. The inner walls of the inner rotating plates 23 are rotatably connected to the other end of the positioning rods 20. The positioning rods 20 are used to clamp and fix the drill rods 3 to prevent them from shifting. Each positioning rod 20 has a sliding shell 21 rotatably connected to its outer wall. The sliding shell 21 fits against the outer wall of the drill rod 3. The sliding shell 21 is used to reduce friction and ensure smooth contact between the positioning rods 20 and the drill rods 3.

[0037] Working principle: During the process of fixing the equipment, the corresponding switch in the control room 5 is activated first, and the electrical box 16 is activated through the circuit. At this time, the threaded rod 17 at the output end of the electrical box 16 rotates, causing the upper rod 12 to move down relative to the fixed plate 18 until the bottom foot 7 contacts the ground. The rotation of the universal joint 14 can make the bottom foot 7 adapt to different angles of the ground, thereby achieving the purpose of fixing the equipment and enabling the equipment to adapt to different terrains, solving the problem of equipment being easy to shift or tip over in complex terrains.

[0038] During the positioning process of drill bit 1 and drill rod 3, the corresponding switch in the control room 5 is first activated, which activates the hydraulic rod 10 via the circuit. The output end of the hydraulic rod 10 pushes the rotating rod 11 to move, thereby causing the outer ring 9 to rotate around the inner ring 2. The outer rotating plate 19 on the outer ring 9 moves and rotates together with the outer ring 9. At this time, multiple positioning rods 20 and sliding shell 21 tighten inward and stick to the drill rod 3. The sliding shell 21 ensures that the drill rod 3 can slide vertically, thereby achieving the purpose of fixing the horizontal position of the drill rod 3 and ensuring that the position of drill bit 1 is the same as the set direction. This solves the problem that the force direction of the component deviates from the design value due to the tilt of drill bit 1, which makes it impossible to guarantee the stability of the structure.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pile foundation drilling device for water conservancy projects, comprising a drill bit (1) and a control room (5), characterized in that: The drill bit (1) is rotatably connected to the top of the drill rod (3), and the drill rod (3) is provided with a positioning component on the outer wall. The drill rod (3) is provided with a track (4) on one side, and the inner wall of the groove on the track (4) is engaged with the side wall of the drill rod (3). The control room (5) is fixedly connected to one side of the engine (6), and the bottom of the engine (6) is rotatably connected to a track (8). Multiple telescopic legs (15) are rotatably connected to both sides of the track (8), and the bottom of the telescopic legs (15) is provided with a fixing component. The fixing component includes a base (7) located at the bottom of the telescopic leg (15). A universal joint (14) is rotatably connected to the top of the base (7). An upper rod (12) is rotatably connected to the outer wall of the universal joint (14). A lifting component is provided at the top of the upper rod (12).

2. The pile foundation drilling device for water conservancy projects according to claim 1, characterized in that: The lifting assembly includes a threaded rod (17), which is rotatably connected to the inside of the upper rod (12). The threaded rod (17) is threaded to the inner wall of the upper rod (12). An electrical box (16) is fixedly connected to the top of the threaded rod (17), and an outer shell (13) is fixedly connected to the outer wall of the electrical box (16).

3. The pile foundation drilling device for water conservancy projects according to claim 2, characterized in that: The upper rod (12) is slidably connected to the inner wall of the outer shell (13), and a fixing plate (18) is fixedly connected to the inner wall of the outer shell (13). The threaded rod (17) passes through the fixing plate (18) and extends to the outside. The outer wall of the outer shell (13) is fixedly connected to the inner wall of the telescopic leg (15).

4. The pile foundation drilling device for water conservancy projects according to claim 1, characterized in that: The positioning component includes a hydraulic rod (10), which is located on one side of the track (4), and one end of the hydraulic rod (10) is fixedly connected to one side of the track (4).

5. A pile foundation drilling device for water conservancy projects according to claim 4, characterized in that: The other end of the hydraulic rod (10) is rotatably connected to a rotating rod (11), and the two ends of the rotating rod (11) are rotatably connected to multiple outer rings (9).

6. The pile foundation drilling device for water conservancy projects according to claim 5, characterized in that: The inner wall of the outer ring (9) is rotatably connected to the inner ring (2), and a fixing block (22) is fixedly connected to one side of the inner ring (2).

7. A pile foundation drilling device for water conservancy projects according to claim 6, characterized in that: The fixed block (22) is fixedly connected to the inner wall of the track (4) on one side, and multiple outer rotating plates (19) are rotatably connected to both ends of the outer ring (9). The inner wall of the outer rotating plate (19) is rotatably connected to a positioning rod (20).

8. A pile foundation drilling device for water conservancy projects according to claim 7, characterized in that: Multiple inner rotating plates (23) are rotatably connected to both ends of the inner ring (2). The inner wall of the inner rotating plate (23) is rotatably connected to the other end of the positioning rod (20). Each positioning rod (20) has a sliding shell (21) rotatably connected to its outer wall. The sliding shell (21) is in contact with the outer wall of the drill rod (3).