Static pressure immersed tube method plain soil compaction pile impact device

Abstract

The utility model relates to the technical field of foundation pile impact devices, in particular to a static pressure immersed tube method plain soil compaction pile impact device which comprises two cross beams which are symmetrical to each other and fixedly installed on an external pile press, and U-shaped frames are fixedly installed on rod bodies at the ends of the two cross beams. A supporting frame is rotationally connected between the left side plate body and the right side plate body of the U-shaped frame through a rotating shaft, a driving motor is coaxially arranged at the end of the rotating shaft, a first hydraulic cylinder is fixedly installed on the top plate body of the supporting frame, a lower pressing disc is arranged at the tail end of a telescopic shaft of the first hydraulic cylinder, and second hydraulic cylinders are fixedly installed on the left side plate body and the right side plate body of the supporting frame. A clamping plate is arranged at the tail end of a telescopic shaft of the second hydraulic cylinder, guide holes are formed in the left side plate body and the right side plate body of the supporting frame, guide rods are fixedly installed on the side faces of the clamping plate, and the guide rods penetrate through the guide holes and are in sliding connection with the guide holes. According to the utility model, angle adjustment and clamping guide operation are facilitated, and dense pile impact is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pile impact devices, in particular to a static pressure pipe sinking method soil compaction pile impact device. Background Art

[0002] my country has a vast territory and complex and diverse geological conditions. Deep loess foundations are widely distributed, especially in the northwest region. With the rapid development of the economy, the requirements for the bearing capacity and stability of construction projects are increasing. In particular, the demand for ultra-deep foundation treatment has increased significantly. When performing compaction pile impact operations, although traditional bare soil compaction pile technology is widely used in the treatment of collapsible loess foundations, its treatment depth is generally controlled between 4 and 6 meters, which is difficult to meet the current needs of ultra-deep foundation treatment. In addition, traditional construction methods also have problems such as high construction costs, low construction efficiency, high noise, and serious mud and water pollution, which have brought considerable pressure to the environment.

[0003] In order to meet the current demand for ultra-deep foundation treatment in engineering construction, improve the bearing capacity and stability of the foundation, and at the same time reduce construction costs and reduce environmental pollution, improved technologies for soil compaction piles are usually adopted at present, such as using a device connected to a static pressure pile driver and a sinking tube to form a hole through static pressure sinking tubes, and then using a heavy hammer to compact the soil to form a pile.

[0004] The impact device of the static pressure pipe-sinking method of soil compaction pile mainly consists of a static pressure pile driver, a pipe sinking method, a movable pile tip, a bladder, a fixed tube, a rammer and a regulating mechanism. Its working principle is to press the pipe sinking method into the soil through the static pressure pile driver, and use the lateral extrusion effect during the pipe sinking hole-forming process to squeeze the soil in the pile hole to the surrounding area to form dense soil between piles. Subsequently, through the impact action of the rammer, the soil is backfilled and compacted in layers to form a high-strength pile body.

[0005] However, when using this type of static pressure tube-sinking method soil compaction pile impact device, the impact device is generally only capable of downward squeezing movement. The impact device is generally fixed to the corresponding fixed beam and lacks components that can be adjusted in angle or clamped to the end of the sinking tube for guidance. The inability to adjust the angle causes the position of the impact device to be misaligned with the position of the sinking tube, and the lack of clamping and guidance causes positional deviation during the downward pressure and impact process, affecting the use effect. In view of this, we proposed a static pressure tube-sinking method soil compaction pile impact device. Utility Model Content

[0006] The purpose of the present invention is to provide a static pressure pipe sinking method soil compaction pile impact device to solve the defects mentioned in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] The static pressure pipe-sinking method soil compaction pile impact device comprises two mutually symmetrical beams fixedly mounted on an external pile driver, a U-shaped frame fixedly mounted on the end rods of the two beams, a support frame is rotatably connected between the left and right side plates of the U-shaped frame via a rotating shaft, a drive motor is coaxially arranged at the end of the rotating shaft, a first hydraulic cylinder is fixedly mounted on the top plate of the support frame, a lower pressure plate is arranged at the end of the telescopic shaft of the first hydraulic cylinder, a second hydraulic cylinder is fixedly mounted on the left and right side plates of the support frame, a clamping plate is arranged at the end of the telescopic shaft of the second hydraulic cylinder.

[0009] Preferably, a rectangular groove is provided in the end rod body of the rotating shaft, and a rectangular plug rod is fixedly installed at the end of the output shaft of the driving motor. The rectangular plug rod is located in the rectangular groove and plugged into the rectangular groove.

[0010] Preferably, the cross-sections of the rectangular insertion rod and the rectangular groove are both rectangular, and the size of the rectangular insertion rod is adapted to the size of the rectangular groove.

[0011] Preferably, a fixed plate is fixedly mounted on the end of the telescopic shaft of the first hydraulic cylinder, and the lower pressure plate is fixedly mounted on the bottom surface of the fixed plate.

[0012] Preferably, a steel plate is fixedly mounted on the end of the telescopic shaft of the second hydraulic cylinder, and the clamping plate is fixedly mounted on the side surface of the steel plate.

[0013] Preferably, a wear-resistant and anti-slip layer is provided on the side surface of the clamping plate, and the thickness of the wear-resistant and anti-slip layer is between 0.2 cm and 0.5 cm.

[0014] Preferably, guide holes are provided on both the left and right side plates of the support frame, and guide rods are fixedly mounted on the side surfaces of the clamping plate. The guide rods pass through the guide holes and are slidably connected to the guide holes.

[0015] Preferably, an axial hole is provided on the left and right side plates of the U-shaped frame, and an annular groove concentrically arranged with the axial hole is provided on the left and right side plates of the U-shaped frame. The rotating shaft is located in the axial hole and is rotatably connected to the axial hole. A limiting protrusion is fixedly installed on the rotating shaft, and the end plate of the limiting protrusion is located in the annular groove and is rotatably connected to the annular groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model uses the cross beam and U-shaped frame as support, and the support frame and driving motor as support. The driving motor can be used to drive the support frame to rotate and adjust the direction of the support frame. In addition, the first hydraulic cylinder and the lower pressure plate can be used to drive the first hydraulic cylinder to move downward to achieve dense pile impact operation. The second hydraulic cylinder and the clamping plate can also be used to clamp the clamping plate on the immersed pipe for guiding operation, so that the downward impact process is not prone to position deviation, thereby achieving the effect of angle adjustment and guidance.

[0018] 2. The present invention provides an annular groove and a limiting protrusion, and utilizes the limiting protrusion to rotate until it abuts against the groove wall of the annular groove, thereby limiting the rotation angle of the rotating shaft to avoid excessive rotation angle that affects the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 It is a partial structural diagram of the utility model;

[0023] Figure 5 For this utility model Figure 4 Enlarged view of point B in the middle;

[0024] The meaning of each number in the figure is:

[0025] 1. Crossbeam; 10. U-shaped frame; 11. Axis hole; 12. Annular groove;

[0026] 2. Support frame; 20. Rotating shaft; 201. Rectangular groove; 21. Limiting protrusion; 22. Driving motor; 23. Rectangular insertion rod; 24. Guide hole; 25. First hydraulic cylinder; 251. Fixed plate; 252. Lower pressure plate; 26. Second hydraulic cylinder; 261. Steel plate; 27. Clamping plate; 271. Wear-resistant and anti-skid layer; 28. Guide rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: a static pressure pipe sinking method soil compaction pile impact device, comprising two mutually symmetrical crossbeams 1 fixedly mounted on an external pile driver, U-shaped frames 10 fixedly mounted on the end rods of the two crossbeams 1, a support frame 2 is rotatably connected between the left and right side plates of the U-shaped frame 10 via a rotating shaft 20, a drive motor 22 is coaxially arranged at the end of the rotating shaft 20, and the drive motor 22 is used to drive the support frame 2 to rotate, thereby realizing the angle adjustment operation;

[0029] Specifically, a first hydraulic cylinder 25 is fixedly mounted on the top plate of the support frame 2. A lower pressure plate 252 is provided at the end of the telescopic shaft of the first hydraulic cylinder 25. The first hydraulic cylinder 25 is used to drive the lower pressure plate 252 to move downward, thereby performing dense pile impact and downward pressure operations.

[0030] Specifically, a second hydraulic cylinder 26 is fixedly installed on the left and right side plates of the support frame 2, and a clamping plate 27 is provided at the end of the telescopic shaft of the second hydraulic cylinder 26. The second hydraulic cylinder 26 is used to drive the clamping plate 27 to clamp on the immersed tube, thereby achieving the effect of clamping and guiding.

[0031] In this embodiment, a rectangular groove 201 is provided in the end rod body of the rotating shaft 20, and a rectangular plug rod 23 is fixedly installed at the end of the output shaft of the driving motor 22. The rectangular plug rod 23 is located in the rectangular groove 201 and is plugged into and matched with the rectangular groove 201; the cross-sections of the rectangular plug rod 23 and the rectangular groove 201 are both rectangular, and the size of the rectangular plug rod 23 is adapted to the size of the rectangular groove 201 for stable plug-in assembly operations.

[0032] Specifically, a fixed plate 251 is fixedly installed at the end of the telescopic shaft of the first hydraulic cylinder 25, and the lower pressure plate 252 is fixedly installed on the bottom surface of the fixed plate 251 by multiple fastening bolts; a steel plate 261 is fixedly installed at the end of the telescopic shaft of the second hydraulic cylinder 26, and the clamping plate 27 is fixedly installed on the side of the steel plate 261 by multiple fastening bolts, which facilitates the fixed installation operation.

[0033] Furthermore, a wear-resistant and anti-slip layer 271 is provided on the side of the clamping plate 27. The wear-resistant and anti-slip layer 271 can be made of high manganese steel material, which has good wear resistance. The thickness of the wear-resistant and anti-slip layer 271 is between 0.2cm and 0.5cm, which can play an anti-slip protection effect.

[0034] In addition, guide holes 24 are provided on the left and right side plates of the support frame 2, and a guide rod 28 is fixedly installed on the side of the clamping plate 27. The guide rod 28 passes through the guide hole 24 and is slidably connected to the guide hole 24, thereby guiding the movement of the clamping plate 27.

[0035] It is worth noting that an axial hole 11 is provided on the left and right side plates of the U-shaped frame 10, and an annular groove 12 is provided on the left and right side plates of the U-shaped frame 10 which is concentric with the axial hole 11. The rotating shaft 20 is located in the axial hole 11 and is rotatably connected with the axial hole 11. A limiting protrusion 21 is fixedly installed on the rotating shaft 20, and the end plate of the limiting protrusion 21 is located in the annular groove 12 and is rotatably connected with the annular groove 12. After the limiting protrusion 21 is rotated to abut against the groove wall of the annular groove 12, the rotation angle of the rotating shaft 20 is limited to avoid excessive rotation angle of the rotating shaft 20.

[0036] When the static pressure pipe-sinking method soil compaction pile impact device of the present invention is in use, as the external pipe-sinking arrangement is completed and the foundation pile is inserted into the pipe-sinking position, the pile head of the external pile driver moves, driving the U-shaped frame 10 to move to the pipe-sinking position where the arrangement has been completed. At this time, the second hydraulic cylinder 26 is started and made to work. When the second hydraulic cylinder 26 works, the telescopic shaft on it extends and drives the clamping plate 27 to clamp on the pipe. Then the first hydraulic cylinder 25 is started and made to work. When the first hydraulic cylinder 25 works, the telescopic shaft on it extends and drives the lower pressure plate 252 to move downward, so that the foundation pile is pressed down into the pipe by the lower pressure plate 252, completing the impact operation.

[0037] In addition, when in use, the drive motor 22 can be connected to an external power source and made to work according to the direction of the immersed pipe and the foundation pile. When the drive motor 22 works, the output shaft thereon rotates to drive the support frame 2 to rotate, thereby realizing the angle adjustment operation.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A static pressure pipe sinking method soil compaction pile impact device, comprising two mutually symmetrical crossbeams (1) fixedly mounted on an external pile driver, characterized in that: A U-shaped frame (10) is fixedly mounted on the end rods of the two crossbeams (1), and a support frame (2) is rotatably connected between the left and right side plates of the U-shaped frame (10) via a rotating shaft (20), and a driving motor (22) is coaxially arranged at the end of the rotating shaft (20). A first hydraulic cylinder (25) is fixedly mounted on the top plate of the support frame (2), and a lower pressure plate (252) is arranged at the end of the telescopic shaft of the first hydraulic cylinder (25). A second hydraulic cylinder (26) is fixedly mounted on both the left and right side plates of the support frame (2), and a clamping plate (27) is arranged at the end of the telescopic shaft of the second hydraulic cylinder (26).

2. The static pressure pipe sinking method soil compaction pile impact device according to claim 1 is characterized by: A rectangular groove (201) is provided in the end rod body of the rotating shaft (20), and a rectangular plug rod (23) is fixedly mounted on the end of the output shaft of the driving motor (22). The rectangular plug rod (23) is located in the rectangular groove (201) and is plugged into and engaged with the rectangular groove (201).

3. The static pressure pipe sinking method soil compaction pile impact device according to claim 2 is characterized by: The cross-sections of the rectangular insertion rod (23) and the rectangular groove (201) are both rectangular, and the size of the rectangular insertion rod (23) matches the size of the rectangular groove (201).

4. The static pressure pipe sinking method soil compaction pile impact device according to claim 1, characterized in that: A fixed plate (251) is fixedly mounted on the end of the telescopic shaft of the first hydraulic cylinder (25), and the lower pressure plate (252) is fixedly mounted on the bottom surface of the fixed plate (251).

5. The static pressure pipe sinking method soil compaction pile impact device according to claim 1 is characterized by: A steel plate (261) is fixedly mounted on the end of the telescopic shaft of the second hydraulic cylinder (26), and the clamping plate (27) is fixedly mounted on the side surface of the steel plate (261).

6. The static pressure pipe sinking method soil compaction pile impact device according to claim 1, characterized in that: A wear-resistant and anti-slip layer (271) is provided on the side surface of the clamping plate (27), and the thickness of the wear-resistant and anti-slip layer (271) is between 0.2 cm and 0.5 cm.

7. The static pressure pipe sinking method soil compaction pile impact device according to claim 1, characterized in that: Guide holes (24) are provided on the left and right side plates of the support frame (2), and guide rods (28) are fixedly installed on the side surfaces of the clamping plate (27). The guide rods (28) pass through the guide holes (24) and are slidably connected to the guide holes (24).

8. The static pressure pipe sinking method soil compaction pile impact device according to claim 1, characterized in that: The left and right side plates of the U-shaped frame (10) are both provided with shaft holes (11), and the left and right side plates of the U-shaped frame (10) are both provided with annular grooves (12) arranged concentrically with the shaft holes (11). The rotating shaft (20) is located in the shaft holes (11) and is rotatably connected to the shaft holes (11). A limiting protrusion (21) is fixedly mounted on the rotating shaft (20), and an end plate of the limiting protrusion (21) is located in the annular groove (12) and is rotatably connected to the annular groove (12).

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