Pile foundation rotary drilling hole forming device

Abstract

The utility model relates to road and bridge construction technical field, concretely is a kind of pile foundation rotary drilling rig hole forming device, including vehicle body, motor one, screw rod, movable box, motor two, drill rod and sludge discharge mechanism, motor one is fixedly installed on the surface of vehicle body, screw rod is fixedly connected with the output end of motor one, movable box is threadedly connected with the surface of screw rod, movable box is slidably connected with the inner wall of vehicle body, motor two is fixedly installed on the inner wall of movable box, drill rod is fixedly connected with the output end of motor two, sludge discharge mechanism is arranged on the surface of drill rod, sludge discharge mechanism includes auger, auger is fixedly connected with the surface of drill rod, the surface of movable box is fixedly connected with conveying pipe, conveying pipe is connected with sludge discharge pipe through surface penetration connection.The utility model, by setting sludge discharge mechanism, can convey the soil generated by drilling to away from stake hole or specific collection point, avoid the soil accumulation in stake hole vicinity to cause the influence drilling and subsequent operation, effectively improve the convenience of equipment for this.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge construction technology, and in particular to a rotary drilling device for pile foundations. Background Technology

[0002] Rotary drilling rigs are pile-building machines used for drilling operations in building foundation engineering. They have advantages such as fast construction speed, good hole quality, low environmental pollution, flexible and convenient operation, high safety performance and strong applicability. They have become the main hole-forming equipment for bored pile construction and are widely used in foundation engineering projects such as municipal construction, highway bridges, and high-rise buildings. When constructing sections such as highways, it is usually necessary to first drill holes in the ground to build foundation piles, so a rotary drilling rig is used to form a pile foundation.

[0003] Existing technologies, such as Chinese Patent Publication No. CN222253818U, disclose a rotary drilling pile-forming device, including a base. A vertical box is fixedly installed on the top left side of the base, a motor box is slidably installed on the left side of the vertical box, a protective box is fixedly installed on the left side of the motor box, a functional box is fixedly installed on the left side of the protective box, a drill cylinder is fixedly installed at the bottom of the motor box, and a common conveying cylinder is fixedly installed between the left side of the drill cylinder and the functional box; a first motor is fixedly installed on the inner wall of the bottom of the base. This utility model has a reasonable design. By setting up a rotary drilling mechanism, it can realize drilling into the ground through a drill rod, and can realize the purpose of transporting the soil generated by drilling upward into the through hole through a first auger. By setting up a conveying mechanism, it can realize the centralized discharge of soil through the discharge port for easy collection, and can realize the purpose of avoiding soil accumulation around the pile hole and avoiding blockage of the pile hole. However, the discharge port of the conveying mechanism set in this utility model is fixed and located at a high position, so it cannot transport the soil to a specific collection point as needed. In order to avoid instability of the center of gravity and affect the movement of the equipment, the conveying mechanism cannot be set too long, resulting in the discharge port being still relatively close to the pile hole.

[0004] To address the issue of soil accumulation near pile holes during rotary drilling of pile foundations, the soil generated during drilling is often carried out of the pile hole and thrown to its vicinity. As the drilling progresses deeper, the soil accumulates in large quantities around the pile hole, affecting drilling and subsequent operations. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that soil generated during drilling of pile foundation rotary drilling devices tends to accumulate near the pile hole in the existing technology, and to propose a pile foundation rotary drilling device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a rotary drilling device for pile foundations, comprising a vehicle body, a first motor, a screw, a movable box, a second motor, a drill rod, and a mud removal mechanism. The first motor is fixedly installed on the surface of the vehicle body. The screw is fixedly connected to the output end of the first motor. The movable box is threadedly connected to the surface of the screw and slidably connected to the inner wall of the vehicle body. The second motor is fixedly installed on the inner wall of the movable box. The drill rod is fixedly connected to the output end of the second motor. The mud removal mechanism is disposed on the surface of the drill rod and includes an auger fixedly connected to the surface of the drill rod. A conveying pipe is fixedly connected to the surface of the movable box. A mud removal pipe is connected through the surface of the conveying pipe. A connecting pipe is fixedly connected to the surface of the mud removal pipe. An adjusting pipe is fixedly connected to the surface of the connecting pipe. A rotating frame is rotatably connected to the inner wall of the mud removal pipe. The rotating frame is fixedly connected to the surface of the adjusting pipe. A hydraulic rod is fixedly installed on the surface of the movable box. A bracket is fixedly connected to the drive end of the hydraulic rod, and the bracket cooperates with the adjusting pipe.

[0007] Furthermore, both the drill rod and the auger are located inside the conveying pipe, the auger is adapted to the inner wall of the conveying pipe, and the auger cooperates with the mud discharge pipe.

[0008] Furthermore, the bracket is slidably connected to the surface of the regulating pipe, the bracket is slidably connected to the surface of the conveying pipe, and the hydraulic rods are in two sets and symmetrically arranged.

[0009] Furthermore, the sludge discharge pipe is inclined, the connecting pipe is a flexible hose, and the end of the adjusting pipe away from the connecting pipe is fixedly connected to an installation plate.

[0010] Furthermore, the inner wall of the conveying pipe is provided with an auxiliary mechanism, which includes a slide rod. The slide rod is slidably connected to the inner wall of the conveying pipe, and a movable plate is fixedly connected to the surface of the slide rod. There are two sets of slide rods arranged symmetrically.

[0011] Furthermore, a push plate is fixedly connected to the surface of the slide rod, a cam is fixedly connected to the surface of the drill rod, the cam cooperates with the push plate, a spring is sleeved and connected to the surface of the slide rod, one end of the spring is fixedly connected to the surface of the movable plate, and the other end of the spring is fixedly connected to the surface of the conveying pipe.

[0012] Furthermore, a first impact block is fixedly connected to the surface of the movable plate near the conveying pipe, and a second impact block is fixedly connected to the surface of the movable plate away from the conveying pipe.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting up a mud discharge mechanism, starting motor one drives the screw to rotate, causing the movable box to move downwards. At the same time, starting motor two causes the drill rod to rotate to achieve rotary drilling. During this process, to avoid mud splashing generated during drilling, an auger is used in conjunction with a conveying pipe to transport the mud upwards to the mud discharge pipe, and then it is discharged through a connecting pipe and an adjusting pipe. To prevent the discharged mud from accumulating near the pile hole, a hydraulic rod can be started to drive the bracket upwards, pushing the adjusting pipe and causing the rotating frame to rotate accordingly, thereby changing the angle of the adjusting pipe. This can guide the mud away from the pile hole or to a specific collection point, and also prevent the adjusting pipe from obstructing the continued drilling. The adjusting pipe can also be lengthened using an installation plate as needed. After drilling is completed, the hydraulic rod is started to drive the bracket downwards, causing the adjusting pipe to reset and retract, avoiding occupying too much space. By setting up a mud discharge mechanism, the mud generated during drilling can be transported to a location away from the pile hole or to a specific collection point, preventing mud from accumulating near the pile hole and affecting drilling and subsequent operations. This effectively improves the convenience of the equipment.

[0015] 2. In this utility model, by setting an auxiliary mechanism, when the second motor starts and rotates the drill rod, it drives the cam to rotate continuously and intermittently push the push plate. With the rebound effect of the spring, the slide bar moves back and forth continuously, which in turn drives the movable plate to move back and forth continuously. This causes the first impact block to continuously hit the connection between the mud discharge pipe and the conveying pipe, while the second impact block continuously hits the connection between the mud discharge pipe and the connecting pipe. The vibration generated by the impact allows the mud to enter the mud discharge pipe more smoothly from the conveying pipe, and then from the mud discharge pipe into the connecting pipe and the regulating pipe, avoiding mud blockage. By setting an auxiliary mechanism, the vibration generated by the continuous impact makes the mud discharge process smoother and avoids mud blockage, thus effectively improving the convenience of the equipment. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a rotary drilling device for pile foundations;

[0017] Figure 2 This utility model provides a cross-sectional structural diagram of the mud removal mechanism in a rotary drilling device for pile foundations.

[0018] Figure 3 This utility model provides a partially enlarged structural diagram of the mud removal mechanism in a rotary drilling device for pile foundations.

[0019] Figure 4 This utility model provides another partially enlarged structural schematic diagram of the mud removal mechanism in a rotary drilling device for pile foundations;

[0020] Figure 5 This utility model proposes a rotary drilling device for pile foundations. Figure 4 A schematic diagram of the structure at point A.

[0021] Legend:

[0022] 1. Car body; 2. Motor 1; 3. Screw; 4. Movable box; 5. Motor 2; 6. Drill rod; 7. Sludge discharge mechanism; 71. Screw conveyor; 72. Conveying pipe; 73. Sludge discharge pipe; 74. Connecting pipe; 75. Adjusting pipe; 76. Rotating frame; 77. Hydraulic rod; 78. Bracket; 79. Mounting plate; 8. Auxiliary mechanism; 81. Slide rod; 82. Movable plate; 83. Push plate; 84. Cam; 85. Spring; 86. Impact block 1; 87. Impact block 2. Detailed Implementation

[0023] Please see Figures 1-5 This utility model provides a technical solution: a rotary drilling device for pile foundations, comprising a vehicle body 1, a first motor 2, a screw 3, a movable box 4, a second motor 5, a drill rod 6, and a mud removal mechanism 7. The first motor 2 is fixedly installed on the surface of the vehicle body 1, the screw 3 is fixedly connected to the output end of the first motor 2, the movable box 4 is threadedly connected to the surface of the screw 3, the movable box 4 is slidably connected to the inner wall of the vehicle body 1, the second motor 5 is fixedly installed on the inner wall of the movable box 4, the drill rod 6 is fixedly connected to the output end of the second motor 5, and the mud removal mechanism 7 is disposed on the surface of the drill rod 6.

[0024] The specific setup and function of its sludge discharge mechanism 7 and auxiliary mechanism 8 will be explained in detail below.

[0025] In this embodiment: the mud discharge mechanism 7 includes an auger 71, which is fixedly connected to the surface of the drill rod 6. A conveying pipe 72 is fixedly connected to the surface of the movable box 4. A mud discharge pipe 73 is connected through the surface of the conveying pipe 72. A connecting pipe 74 is fixedly connected to the surface of the mud discharge pipe 73. An adjusting pipe 75 is fixedly connected to the surface of the connecting pipe 74. A rotating frame 76 is rotatably connected to the inner wall of the mud discharge pipe 73. The rotating frame 76 is fixedly connected to the surface of the adjusting pipe 75. A hydraulic rod 77 is fixedly installed on the surface of the movable box 4. A bracket 78 is fixedly connected to the drive end of the hydraulic rod 77. The bracket 78 cooperates with the adjusting pipe 75.

[0026] The effects achieved by the above components are as follows: the auger 71 and conveying pipe 72 are provided to facilitate the upward conveying of the soil generated during drilling to the mud discharge pipe 73; the mud discharge pipe 73, connecting pipe 74, and adjusting pipe 75 are provided to facilitate the discharge of the soil conveyed to the top of the conveying pipe 72 through the mud discharge pipe 73, connecting pipe 74, and adjusting pipe 75 to a location far from the pile hole or a specific collection point; the rotating frame 76, hydraulic rod 77, and bracket 78 are provided so that when the hydraulic rod 77 drives the bracket 78 upward, it pushes the adjusting pipe 75 to rotate the rotating frame 76, thereby adjusting the adjusting pipe 75 to an appropriate angle; when the hydraulic rod 77 drives the bracket 78 downward, the adjusting pipe 75 resets under its own weight, avoiding occupying too much space and affecting the movement of the equipment.

[0027] Specifically, the drill rod 6 and the auger 71 are both installed inside the conveying pipe 72. The auger 71 is adapted to the inner wall of the conveying pipe 72 and cooperates with the mud discharge pipe 73.

[0028] The effect achieved by the above components is as follows: the auger 71 is set up in conjunction with the conveying pipe 72 and the mud discharge pipe 73 to prevent the soil from being directly thrown to the vicinity of the pile hole and accumulating, which would affect drilling and subsequent operations.

[0029] Specifically, the bracket 78 is slidably connected to the surface of the regulating pipe 75, the bracket 78 is slidably connected to the surface of the conveying pipe 72, and the hydraulic rods 77 are in two sets and are symmetrically arranged.

[0030] The effects achieved by the above components are as follows: the sliding connection between the bracket 78 and the surfaces of the regulating pipe 75 and the conveying pipe 72 is to facilitate the movement of the regulating pipe 75 and to keep the up-and-down movement of the bracket 78 stable; the two sets of hydraulic rods 77 are provided to increase the stability of the bracket 78.

[0031] Specifically, the sludge discharge pipe 73 is inclined, the connecting pipe 74 is a flexible hose, and the end of the adjusting pipe 75 away from the connecting pipe 74 is fixedly connected to the mounting plate 79.

[0032] The effects achieved by the above components are as follows: the sludge discharge pipe 73 is inclined to facilitate the introduction of sludge into the connecting pipe 74; the connecting pipe 74 is set as a flexible hose to cooperate with the rotation of the regulating pipe 75; and the mounting plate 79 is set to facilitate the installation of an extension pipe on the regulating pipe 75 to adapt to different construction conditions.

[0033] Specifically, the inner wall of the conveying pipe 72 is provided with an auxiliary mechanism 8, which includes a slide rod 81. The slide rod 81 is slidably connected to the inner wall of the conveying pipe 72, and a movable plate 82 is fixedly connected to the surface of the slide rod 81. There are two sets of slide rods 81 arranged symmetrically.

[0034] The effects achieved by the above components are as follows: the sliding rod 81 is set to facilitate the movement of the movable plate 82; the movable plate 82 is set to facilitate the placement of the first impact block 86 and the second impact block 87; and the two sets of sliding rods 81 are set to increase structural stability.

[0035] Specifically, a push plate 83 is fixedly connected to the surface of the slide rod 81, a cam 84 is fixedly connected to the surface of the drill rod 6, the cam 84 cooperates with the push plate 83, and a spring 85 is sleeved and connected to the surface of the slide rod 81. One end of the spring 85 is fixedly connected to the surface of the movable plate 82, and the other end of the spring 85 is fixedly connected to the surface of the conveying pipe 72.

[0036] The effect achieved by the above components is as follows: the push plate 83, cam 84 and spring 85 are set so that when the drill rod 6 drives the cam 84 to rotate and contact the push plate 83, it pushes the push plate 83, slide rod 81 and movable plate 82 to move and tightens the spring 85, so that the second impact block 87 hits the connection between the mud discharge pipe 73 and the connecting pipe 74. When the cam 84 rotates to the point where it is no longer in contact with the push plate 83, the movable plate 82 is reset under the rebound action of the spring 85, so that the first impact block 86 hits the connection between the mud discharge pipe 73 and the conveying pipe 72.

[0037] Specifically, a first impact block 86 is fixedly connected to the surface of the movable plate 82 near the conveying pipe 72, and a second impact block 87 is fixedly connected to the surface of the movable plate 82 away from the conveying pipe 72.

[0038] The effects achieved by the above components are as follows: the first impact block 86 impacts the connection between the mud discharge pipe 73 and the conveying pipe 72, and the second impact block 87 impacts the connection between the mud discharge pipe 73 and the connecting pipe 74. The vibration generated by the impact makes the mud discharge process smoother and avoids the situation of mud blockage.

[0039] Working principle: By setting up the mud discharge mechanism 7, starting motor 2 drives screw 3 to rotate, causing movable box 4 to move downward. At the same time, starting motor 5 causes drill rod 6 to rotate to achieve rotary drilling. During this process, to avoid mud splashing from the drilling, auger 71 and conveying pipe 72 are used to transport the mud upward to mud discharge pipe 73, and then discharge it through connecting pipe 74 and regulating pipe 75. To prevent the discharged mud from accumulating near the pile hole, hydraulic rod 77 can be activated to drive bracket 78 upward, push regulating pipe 75 and cause rotating frame 76 to rotate accordingly, thereby changing the adjustment. The purpose of the 75-degree angle of the pipe is to guide the soil away from the pile hole or a specific collection point, and also to prevent the adjusting pipe 75 from obstructing the continued drilling. The adjusting pipe 75 can also be lengthened by using the mounting plate 79 as needed. After drilling is completed, the hydraulic rod 77 is activated to drive the bracket 78 downward, so that the adjusting pipe 75 is reset and retracted, avoiding taking up too much space. By setting up the mud discharge mechanism 7, the soil generated by drilling can be transported to a place away from the pile hole or a specific collection point, avoiding the accumulation of soil near the pile hole, which would affect drilling and subsequent operations. This effectively improves the convenience of the equipment.

[0040] Furthermore, by setting up an auxiliary mechanism 8, when the second motor 5 starts and rotates the drill rod 6, it drives the cam 84 to rotate continuously and intermittently push the push plate 83. With the rebound action of the spring 85, the slide rod 81 moves back and forth continuously, which in turn drives the movable plate 82 to move back and forth continuously. This causes the first impact block 86 to continuously hit the connection between the mud discharge pipe 73 and the conveying pipe 72, while the second impact block 87 continuously hits the connection between the mud discharge pipe 73 and the connecting pipe 74. The vibration generated by the impact allows the mud to enter the mud discharge pipe 73 more smoothly from the conveying pipe 72, and then enter the connecting pipe 74 and the regulating pipe 75 from the mud discharge pipe 73, avoiding mud blockage. By setting up the auxiliary mechanism 8, the vibration generated by the continuous impact makes the mud discharge process smoother and avoids mud blockage, thus effectively improving the convenience of the equipment.

Claims

1. A rotary drilling device for pile foundations, comprising a vehicle body (1), a first motor (2), a screw (3), a movable box (4), a second motor (5), a drill rod (6), and a mud removal mechanism (7), characterized in that: The first motor (2) is fixedly installed on the surface of the vehicle body (1). The screw (3) is fixedly connected to the output end of the first motor (2). The movable box (4) is threadedly connected to the surface of the screw (3). The movable box (4) is slidably connected to the inner wall of the vehicle body (1). The second motor (5) is fixedly installed on the inner wall of the movable box (4). The drill rod (6) is fixedly connected to the output end of the second motor (5). The mud removal mechanism (7) is set on the surface of the drill rod (6). The mud removal mechanism (7) includes an auger (71). The auger (71) is fixedly connected to the surface of the drill rod (6). The surface of the movable box (4) A conveying pipe (72) is fixedly connected, and a mud discharge pipe (73) is connected through the surface of the conveying pipe (72). A connecting pipe (74) is fixedly connected to the surface of the mud discharge pipe (73), and an adjusting pipe (75) is fixedly connected to the surface of the connecting pipe (74). A rotating frame (76) is rotatably connected to the inner wall of the mud discharge pipe (73). The rotating frame (76) is fixedly connected to the surface of the adjusting pipe (75). A hydraulic rod (77) is fixedly installed on the surface of the movable box (4). A bracket (78) is fixedly connected to the driving end of the hydraulic rod (77). The bracket (78) cooperates with the adjusting pipe (75).

2. The pile foundation rotary drilling device according to claim 1, characterized in that: The drill rod (6) and the auger (71) are both located inside the conveying pipe (72). The auger (71) is adapted to the inner wall of the conveying pipe (72) and is matched with the mud discharge pipe (73).

3. The pile foundation rotary drilling device according to claim 1, characterized in that: The bracket (78) is slidably connected to the surface of the regulating pipe (75), the bracket (78) is slidably connected to the surface of the conveying pipe (72), and the hydraulic rods (77) are in two sets and are arranged symmetrically.

4. The pile foundation rotary drilling device according to claim 1, characterized in that: The sludge discharge pipe (73) is inclined, the connecting pipe (74) is a flexible hose, and the end of the adjusting pipe (75) away from the connecting pipe (74) is fixedly connected to an installation plate (79).

5. The pile foundation rotary drilling device according to claim 1, characterized in that: The inner wall of the conveying pipe (72) is provided with an auxiliary mechanism (8), which includes a slide rod (81). The slide rod (81) is slidably connected to the inner wall of the conveying pipe (72). A movable plate (82) is fixedly connected to the surface of the slide rod (81). There are two sets of slide rods (81) arranged symmetrically.

6. A pile foundation rotary drilling hole forming device according to claim 5, characterized in that: A push plate (83) is fixedly connected to the surface of the slide rod (81), and a cam (84) is fixedly connected to the surface of the drill rod (6). The cam (84) cooperates with the push plate (83). A spring (85) is sleeved and connected to the surface of the slide rod (81). One end of the spring (85) is fixedly connected to the surface of the movable plate (82), and the other end of the spring (85) is fixedly connected to the surface of the conveying pipe (72).

7. The pile foundation rotary drilling device according to claim 5, characterized in that: A first impact block (86) is fixedly connected to the side surface of the movable plate (82) near the conveying pipe (72), and a second impact block (87) is fixedly connected to the side surface of the movable plate (82) away from the conveying pipe (72).

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