Soil filling, tamping and guiding device for cement-soil compaction pile

Abstract

A main body of the soil filling and tamping guide device for the cement soil compaction pile is a guide cylinder, the size of the guide cylinder is larger than that of a rammed earth column head of an earth rammer, and a plurality of guide mechanisms are arranged on the side face of the guide cylinder in the axial direction of the guide cylinder at equal intervals. The guide mechanism at least comprises three guide wheel assemblies which are uniformly distributed on the side wall of the guide cylinder along the circumference, square holes are formed in the positions, corresponding to the guide cylinder, of the guide wheel assemblies, and rollers in the guide wheel assemblies extend into the guide cylinder from the square holes; butt joint plates are arranged on the upper portion and the lower portion of the guide cylinder, and the two ends of the butt joint plates are fixedly connected with the vertical stand columns; according to the device, the guiding cylinder is arranged to provide limiting guiding for the rammed earth column head, the swinging phenomenon of the rammed earth column head is avoided, sliding supporting is provided for the rammed earth column head in the mode that the guiding wheel assemblies are evenly arranged, the friction force between the rammed earth column head and the guiding cylinder in the free falling process is reduced, and the impact speed of the rammed earth column head is guaranteed; and the ramming precision and the ramming quality are improved.

Description

Technical Field

[0001] The utility model relates to the field of building construction equipment, in particular to a cement soil compaction pile filling and tamping guide device. Background Art

[0002] When constructing pile foundations in collapsible loess areas, it is necessary to drill holes in the soil mechanically or manually, then backfill the holes in layers with cement soil and compact them to form a dense pile body, which can effectively eliminate the collapsible nature of the loess.

[0003] During the drilling process, the drill rod or impact head pile pipe exerts an extrusion effect on the surrounding soil, increasing the density of the soil. Cement soil is then filled into the hole and compacted by a rammer, so that the pile itself also has higher strength. The pile body and the soil between the piles jointly bear the upper load to form a composite foundation, thereby improving the overall bearing capacity of the foundation.

[0004] The rammer tamps the soil by using a winch installed inside to lift a solid cylindrical hammer through a wire rope, and then releases the solid cylindrical hammer. The solid cylindrical hammer compacts the fill soil by vertical free fall under its own gravity. However, the solid cylindrical hammer will swing due to the lateral force during the lifting process, which affects the accuracy when the rammer is released again, resulting in poor ramming quality, which needs to be improved. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a cement-soil compaction pile fill tamping guide device.

[0006] The technical solution of the utility model is: a cement soil compaction pile filling tamping guide device, which is installed between the two vertical columns of the ramming machine. The main body of the device is a guide cylinder, and there is a certain distance between the lower end of the guide cylinder and the ground. The size of the guide cylinder is larger than the size of the ramming column head of the ramming machine, and the ramming column head can slide up and down in the guide cylinder. The side surface of the guide cylinder is provided with a plurality of guide mechanisms at equal intervals along its axial direction. The guide mechanism includes at least three guide wheel assemblies uniformly distributed on the side wall of the guide cylinder along the circumference, and the position of the guide wheel assembly corresponding to the guide cylinder is provided with square holes, and the rollers in the guide wheel assembly extend into the inside of the guide cylinder from the square holes, and the guide wheels are arranged vertically, and a rolling support force can be generated between the contact between the side surface of the ramming column head and the guide wheels; the upper and lower parts of the guide cylinder are provided with docking plates, which are a square plate body, and the two ends of the docking plate are fixedly connected to the vertical columns.

[0007] Preferably, the guide wheel assembly includes a U-shaped seat and a roller. Two ear plates are provided side by side on the inner side of the main board of the U-shaped seat, and a certain distance is provided between the two ear plates. The roller is connected between the two ear plates through a wheel axle. The U-shaped seat is fixedly connected to the square hole, and the size of the square hole is larger than the size of the roller.

[0008] Preferably, a triangular reinforcing rib is provided between the ear plate and the U-shaped seat, and the reinforcing rib is welded and fixed between the ear plate and the U-shaped seat.

[0009] Preferably, seat plates are provided radially at the upper and lower edges of the square hole, the seat plates extend outward from the guide cylinder by a certain distance, the U-shaped seat is matched and fitted between the two seat plates, and the seat plates and the U-shaped seat are fixedly connected by bolts.

[0010] Preferably, a triangular reinforcing rib B is provided between the seat plate and the outer side surface of the guide cylinder, and the reinforcing rib is welded and fixed between the seat plate and the guide cylinder.

[0011] Preferably, a triangular reinforcing rib C is provided at the connection between the docking plate and the guide cylinder. The reinforcing rib is welded and fixed between the docking plate and the guide cylinder, and bolt connection holes are provided at both ends of the docking plate.

[0012] Preferably, the guide wheel assembly is arranged upward to the upper end of the guide cylinder and downward to the lower end of the guide cylinder, and a protective cover can be provided on the outside of the guide wheel assembly.

[0013] The beneficial technical effect of the present utility model is that the device provides a limited guide for the rammed earth column head by setting a guide cylinder to avoid it from swinging, and provides sliding support for the rammed earth column head by evenly arranging the guide wheel assembly, thereby reducing the friction between the rammed earth column head and the guide cylinder during the free fall process, ensuring the impact speed of the rammed earth column head, and improving the accuracy and quality of ramming. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the three-dimensional structure of the device;

[0015] Figure 2 yes Figure 1 A partial enlarged view of

[0016] Figure 3 yes Figure 1 AA-direction cross-sectional structural diagram;

[0017] Figure 4 yes Figure 3 BB-direction cross-sectional structural diagram;

[0018] Figure 5 yes Figure 3 A partial enlarged view of

[0019] Figure 6 1. It is a schematic diagram of the three-dimensional structure of the guide wheel assembly;

[0020] Figure 7 It is a side structural schematic diagram of the device installed on a ramming machine.

[0021] In the figure, 01. Rammer, 11. Vertical column, 12. Rammed earth column head, 13. Wire rope, 02. Guide cylinder, 21. Square hole, 22. Seat plate, 23. Triangular reinforcement rib B, 24. Docking plate, 25. Triangular reinforcement rib C, 26. Bolt connection hole, 03. Guide wheel assembly, 31. U-shaped seat, 32. Roller, 33. Axle, 34. Ear plate, 35. Triangular reinforcement rib A, 36. Bolt. DETAILED DESCRIPTION

[0022] Example 1, see attached Figure 1 、 7 , a cement soil compaction pile filling tamping guide device, the device is installed between the two vertical columns 11 of the rammer 01, the main body of the device is a guide cylinder 02, the size of the guide cylinder is larger than the size of the rammed earth column head 12 of the rammer 01, the rammed earth column head 12 can slide freely in the guide cylinder 02, the side of the guide cylinder is provided with a plurality of guide mechanisms at equal intervals along its axial direction, the guide mechanism includes at least three guide wheel assemblies 03 uniformly distributed along the circumference on the side wall of the guide cylinder, this arrangement enables the guide wheel assembly to evenly cover the side of the guide cylinder, the position corresponding to the guide wheel assembly and the guide cylinder is provided with a square hole 21, the roller 32 in the guide wheel assembly 03 extends into the interior of the guide cylinder from the square hole 21, and the roller 32 extends a certain distance into the interior of the cylinder; the upper and lower parts of the guide cylinder 02 are provided with docking plates 24, the two ends of the docking plates are fixedly connected to the vertical columns 11, and the docking plate 24 is connected between the vertical columns 11 by a crossbeam to keep the guide cylinder 02 in a vertical state.

[0023] A triangular reinforcing rib 25 is provided at the connection between the docking plate 24 and the guide cylinder 02, and a bolt 36 connection hole 26 is provided at both ends of the docking plate. Bolts 36 are installed in the bolt connection holes to fix the docking plate 24 to the vertical column 11. The triangular reinforcing rib can improve the connection stability of the docking plate 24 and increase the impact force it can withstand.

[0024] The guide wheel assembly 03 is arranged upward to the upper end of the guide cylinder 02 and downward to the lower end of the guide cylinder 02 to ensure that the guide wheel assembly has sufficient coverage on the guide cylinder.

[0025] The working process of the guide device is: start the winch inside the rammer 01, the winch lifts the rammed earth column 12 through the wire rope 13, the rammed earth column moves upward in the guide cylinder 02, and stops after being lifted to a predetermined height. The lower end of the rammed earth column 12 cannot extend from the guide cylinder 02, and then the winch releases the wire rope 13, and the rammed earth column falls freely in the guide cylinder. During this process, the guide cylinder provides a limited guide for the rammed earth column 12 to prevent it from swinging. The evenly arranged guide wheels provide sliding support for the rammed earth column, reducing the friction between the rammed earth column 12 and the guide cylinder 02 during the free fall process, ensuring that the rammed earth column 12 has sufficient impact speed to impact and compact the fill in the foundation below.

[0026] Example 2, see attached Figure 2-6 Based on the first embodiment, this embodiment designs the guide wheel assembly 03 to include a U-shaped seat 31 and a roller 32. Two ear plates 34 are provided side by side on the inner side of the main body of the U-shaped seat. The two ear plates are arranged parallel to each other and have a certain distance between them. The roller is connected between the two ear plates 34 through a wheel axle 33. A bearing can be provided between the wheel axle and the ear plates. The U-shaped seat 31 is fixedly connected to the square hole 21. A triangular reinforcing rib 35 is provided between the ear plate and the U-shaped seat 31. The reinforcing rib improves the supporting strength of the ear plate 34 on the roller 32, thereby ensuring that the roller 32 has a stable and reliable rolling support force on the rammed earth column head 12.

[0027] A seat plate 22 is radially provided at the upper and lower edges of the square hole 21, and the U-shaped seat 31 is matched and fitted between the two seat plates. The seat plate 22 and the U-shaped seat 31 are fixedly connected by bolts 36. This connection method facilitates the installation or disassembly of the guide wheel assembly 03 at the square hole 21 of the guide cylinder 02, and facilitates later replacement and maintenance. A triangular reinforcement rib B 23 is provided between the seat plate and the outer side surface of the guide cylinder 02. The reinforcement rib is used to improve the stability of the seat plate 22 and ensure its fixed support force on the guide wheel assembly 03.

Claims

1. A cement soil compaction pile fill tamping guide device, which is installed between two vertical columns of a tamping machine and is characterized by: The main body of the device is a guide cylinder. The size of the guide cylinder is larger than the size of the ramming column head of the rammer. Several guide mechanisms are provided at equal intervals along the axial direction of the side of the guide cylinder. The guide mechanism includes at least three guide wheel assemblies evenly distributed along the circumference on the side wall of the guide cylinder. Square holes are provided at the positions corresponding to the guide wheel assemblies and the guide cylinder. The rollers in the guide wheel assemblies extend into the interior of the guide cylinder from the square holes. The upper and lower parts of the guide cylinder are provided with docking plates, and the two ends of the docking plates are fixedly connected to the vertical columns.

2. The guide device for compacting cement soil compaction piles according to claim 1, characterized in that: The guide wheel assembly includes a U-shaped seat and a roller. Two ear plates are arranged side by side on the inner side of the main body of the U-shaped seat. The roller is connected between the two ear plates through a wheel axle. The U-shaped seat is fixedly connected to the square hole.

3. The guide device for compacting cement soil compaction piles according to claim 2, characterized in that: A triangular reinforcing rib is provided between the ear plate and the U-shaped seat.

4. The guide device for compacting cement soil compaction piles according to claim 2, characterized in that: Seat plates are radially arranged at the upper and lower edges of the square hole, the U-shaped seat is matched and sleeved between the two seat plates, and the seat plate and the U-shaped seat are fixedly connected by bolts.

5. The guide device for compacting soil-cement compaction piles according to claim 4, characterized in that: A triangular reinforcing rib B is provided between the seat plate and the outer side surface of the guide cylinder.

6. The guide device for compacting cement soil compaction piles according to claim 1, characterized in that: A triangular reinforcing rib C is provided at the connection between the butt joint plate and the guide cylinder, and bolt connection holes are provided at both ends of the butt joint plate.

7. The guide device for compacting cement-soil compaction piles according to claim 1, characterized in that: The guide wheel assembly is arranged upward to the upper end of the guide cylinder and downward to the lower end of the guide cylinder.

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