A bored pile pile head cleaning device

Abstract

The application discloses a bored pile head cleaning equipment, which comprises a cleaning and transporting mechanism arranged on a tractor through a front hoisting mechanism; wherein the cleaning and transporting mechanism comprises a supporting shell, a driving wheel arranged at the top of the supporting shell, a tensioning outer diameter adjusting part arranged at the bottom of the supporting shell, a conveying track sleeved outside the driving wheel and the tensioning outer diameter adjusting part, and a plurality of cleaning shovels arranged on the conveying track; wherein the supporting shell is in a triangular structure, a reverse V-shaped channel is formed in the supporting shell, a discharge port communicating with the reverse V-shaped channel is formed at the top of the supporting shell, and the driving wheel is driven by a motor arranged on the side wall of the supporting shell. Compared with the traditional manual ring cutting cleaning technology, the application can accelerate the construction progress, save the mechanical cost, reduce the personnel investment, reduce the labor intensity of workers, stabilize the cleaning and transporting of the equipment, avoid the damage to the pile foundation, and improve the construction quality of the pile foundation.

Description

Technical Field

[0001] This invention relates to the field of pile head removal equipment technology, and more particularly to a pile head removal device for bored cast-in-place piles. Background Technology

[0002] Existing pile head removal technologies primarily employ traditional manual methods. These methods involve complex processes such as excavation, surveying and setting out, circumferential cutting, stripping reinforcing bars, breaking the pile head, and hoisting it away with a crane. This process is costly, inefficient, and involves numerous steps. Furthermore, during circumferential cutting, human error often damages the reinforcing bars, causing bending and deformation, which reduces their tensile strength. This weakens the connection between the pile and the foundation, creating a weak point when subjected to external forces. Additionally, the removal of the invalid pile portion is difficult to hoist, and the risk of it detaching during hoisting poses a safety hazard. Manual circumferential cutting also negatively impacts the health of workers; the powerful impact of pneumatic drills can injure the wrists and arms of operators, and the noise and dust generated create a poor working environment. Summary of the Invention

[0003] The purpose of this invention is to provide a drilled pile head removal device that solves the problem of cumbersome construction process for traditional pile head removal, improves work efficiency, and shortens the construction period.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This invention provides a pile head removal device for bored cast-in-place piles, including a removal mechanism mounted on a tractor vehicle via a front lifting mechanism;

[0006] The cleaning mechanism includes a support housing, a drive wheel located at the top of the support housing, a tensioning outer diameter adjustment part located at the bottom of the support housing, a conveyor track sleeved outside the drive wheel and the tensioning outer diameter adjustment part, and a plurality of cleaning shovels located on the conveyor track.

[0007] The supporting shell is a triangular structure with an inverted V-shaped channel inside, and a discharge port communicating with the inverted V-shaped channel is provided at the top of the supporting shell;

[0008] The drive wheel is driven by a motor mounted on the side wall of the support housing.

[0009] Furthermore, the tractor is also equipped with a cargo bed and a rear lifting mechanism;

[0010] The front hoisting mechanism and the rear hoisting mechanism have the same structure.

[0011] Or / and, wherein the front lifting mechanism includes a rotating column mounted on the front end of the tractor via a support bearing, a telescopic cylinder for adjusting the deflection of the rotating column, a boom hinged to the rotating column, a hydraulic cylinder for adjusting the lifting and deflection of the boom, and a lifting winch mounted on the boom.

[0012] The wire rope on the hoisting winch is connected to the upper end of the cleaning mechanism.

[0013] Furthermore, the external connection of the supporting shell is reinforced with ribs.

[0014] Furthermore, the tensioning outer diameter adjustment part includes a support base disposed at the bottom of the support housing, a longitudinal tensioning wheel disposed at the bottom of the support base and used to support the bottom of the conveyor track, two telescopic cylinders horizontally disposed on the support base, a horizontal slide seat disposed at the end of the telescopic cylinder, and a transverse tensioning wheel disposed on the horizontal slide seat and used to support the bottom side wall of the conveyor track.

[0015] Or / and, two transverse tensioning rollers are symmetrically arranged on the horizontal slide block.

[0016] Furthermore, multiple cleaning shovels are evenly spaced on the conveyor belt.

[0017] Compared with the prior art, the beneficial technical effects of this invention are as follows: In this application, the bottom of the removal equipment can be adjusted to a suitable diameter according to the required pile diameter using a hydraulic telescopic device, thus enabling the removal of pile heads of different diameters. Simultaneously, the equipment is connected to a special concrete shovel via a conveyor belt for pile head removal. Compared to the traditional pile head hoisting method, this improves transportation stability and reduces safety hazards. The construction process of this new pile head removal equipment optimizes the construction procedure, eliminating the need for concrete removal of the pile head after excavation. Compared to traditional manual circumferential cutting cleaning technology, this accelerates construction progress, saves machinery costs, reduces personnel input, and lowers the labor intensity of workers. Furthermore, the equipment is stable during removal, avoiding damage to the pile foundation and improving the construction quality of the pile foundation.

[0018] 1) By optimizing the process, cumbersome procedures were eliminated, work efficiency was improved, and the project schedule was guaranteed.

[0019] 2) The pile head removal device improves the traditional construction process, eliminating the need for circumferential cutting and breaking operations, thus avoiding damage to the reinforcing steel.

[0020] 3) The equipment uses a special concrete shovel fixed to the conveyor belt to remove concrete from the pile head. The removal process is safe and stable, avoiding potential safety hazards.

[0021] 4) In the pile head removal operation, the new pile head removal equipment has realized the transformation from manual construction to integrated mechanical removal construction, which has reduced the labor intensity of workers and ensured a good working environment. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the installation structure of the bored pile head removal device of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the bored pile head removal device of the present invention;

[0025] Figure 3 This is an external schematic diagram of the borehole pile head removal device of the present invention;

[0026] Figure 4 This is a schematic diagram of the top of the drilled pile head removal device of the present invention;

[0027] Figure 5 This is a schematic diagram of the bottom of the borehole pile head removal device of the present invention;

[0028] Figure 6 for Figure 5 A schematic diagram of the external mounting structure.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Tractor; 11. Cargo bed; 2. Rear lifting mechanism; 3. Front lifting mechanism; 4. Cleaning mechanism; 41. Support housing; 42. Discharge port; 43. Motor; 44. Cleaning shovel; 45. Drive wheel; 5. Tensioner outer diameter adjustment part; 51. Conveyor track; 52. Support seat; 53. Telescopic cylinder; 54. Lateral tensioner; 55. Longitudinal tensioner. Detailed Implementation

[0031] This embodiment discloses a drilled pile head removal device, including a removal mechanism 4 installed on a tractor 1 via a front hoisting mechanism 3;

[0032] The tractor unit 1 mainly includes a water tank and water pump, a small crane, a cargo bed, a fuel tank, outriggers, and a frame;

[0033] The water tank and pump are located behind the operator's cab and are equipped with a high-pressure water gun for washing away mud and slag layers from the cargo bed and conveyor. The washing process is quick and requires little water, conserving water resources. A small truck-mounted crane is mounted on the water tank to transport the cargo bed to the rear cargo bed. It is electrically raised and lowered upon power-on, making it compact, space-saving, and easy to operate. H-shaped folding outriggers are located in front of the front wheels to ensure the vehicle's operational performance and stability. The cargo bed, located on top of the vehicle, is used to load the removed mud and slag layers.

[0034] The front lifting mechanism 3 includes a hydraulic device, a column, an electric winch, a wire rope, and a telescopic boom. The hydraulic device has a fixing pin at its top that connects to the column, allowing control of the lifting system's rotation in the horizontal plane. One end of the hydraulic device is connected to the column via a fixing pin, and the other end is connected to the boom via a fixing pin, allowing control of the boom's movement in the vertical plane. The telescopic boom is connected to the column via a fixing pin, and an electric winch is installed on its upper part to pull the wire rope and control the raising and lowering of the pile head clearing equipment.

[0035] Specifically, a cargo bed 11 and a rear hoisting mechanism 2 are also installed on the tractor 1;

[0036] The front hoisting mechanism 3 and the rear hoisting mechanism 2 have the same structure.

[0037] The front lifting mechanism 3 includes a rotating column mounted on the front end of the tractor 1 via a support bearing, a telescopic cylinder for adjusting the deflection of the rotating column, a boom hinged to the rotating column, a hydraulic cylinder for adjusting the lifting and deflection of the boom, and a lifting winch mounted on the boom.

[0038] The wire rope on the hoisting winch is connected to the upper end of the cleaning mechanism 4.

[0039] like Figure 2 , 3 As shown in Figure 4, the cleaning mechanism 4 includes a support housing 41, a drive wheel 45 installed at the top inside the support housing 41, a tensioning outer diameter adjustment part 5 installed at the bottom of the support housing 41, a conveyor belt 51 sleeved outside the drive wheel 45 and the tensioning outer diameter adjustment part 5, and a plurality of cleaning shovels 44 installed on the conveyor belt 51.

[0040] The support housing 41 is a triangular structure with an inverted V-shaped channel inside it, and a discharge port 42 communicating with the inverted V-shaped channel is provided at the top of the support housing 41.

[0041] The drive wheel 45 is driven by a motor 43 mounted on the side wall of the support housing 41;

[0042] The motor 43 is connected to the drive wheel 45 via bearings and a coupling, providing power to the entire system. The drive wheel is covered with tracks and a special concrete shovel. The drive wheel drives the tracks and the special concrete shovel to rotate, clearing away the mud and slag layers from the pile head and discharging them from the discharge port into an outer material bag, thus achieving the purpose of cleaning. The lower hydraulic telescopic system can flexibly control the lower diameter to adapt to pile head cleaning operations of different diameters.

[0043] like Figure 3 As shown, the external connection of the support shell 41 is reinforced with ribs, specifically V-shaped connecting rods, to enhance the connection and support strength.

[0044] like Figure 5 As shown, in this embodiment, the tensioning outer diameter adjustment part 5 includes a support base 52 installed at the bottom of the support housing 41, a longitudinal tensioning wheel 55 installed at the bottom of the support base 52 and used to support the bottom of the conveyor track 51, two telescopic cylinders 53 horizontally installed on the support base 52, a horizontal slide installed at the end of the telescopic cylinder 53, and a transverse tensioning wheel 54 installed on the horizontal slide and used to support the bottom side wall of the conveyor track 51.

[0045] Specifically, two transverse tensioning wheels 54 are symmetrically installed on the horizontal slide block.

[0046] Multiple cleaning shovels 44 are evenly spaced on the conveyor belt 51;

[0047] This equipment, through a hydraulic telescopic device, can adjust the bottom of the equipment to the appropriate diameter based on the required pile diameter, enabling the removal of pile heads of different diameters. Simultaneously, the equipment connects to a special concrete shovel via a conveyor belt for pile head removal. Compared to traditional pile head hoisting methods, this improves transportation stability and reduces safety hazards. The new pile head removal equipment optimizes the construction process, eliminating the need for post-excavation concrete removal. Compared to traditional manual circumferential cutting techniques, it accelerates construction progress, saves on machinery costs, reduces personnel input, and lowers worker labor intensity. Furthermore, the equipment is stable during removal, preventing damage to the pile foundation and improving the overall construction quality.

[0048] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for removing the head of a bored pile, characterized in that: Including a cleaning mechanism (4) mounted on a tractor (1) via a front hoisting mechanism (3); The cleaning mechanism (4) includes a support housing (41), a drive wheel (45) disposed at the top inside the support housing (41), a tensioning outer diameter adjustment part (5) disposed at the bottom of the support housing (41), a conveyor track (51) sleeved on the outside of the drive wheel (45) and the tensioning outer diameter adjustment part (5), and a plurality of cleaning shovels (44) disposed on the conveyor track (51). The supporting shell (41) is a triangular structure with an inverted V-shaped channel inside it, and a discharge port (42) communicating with the inverted V-shaped channel is provided at the top of the supporting shell (41). The drive wheel (45) is driven by a motor (43) mounted on the side wall of the support housing (41); The tensioning outer diameter adjustment part (5) includes a support seat (52) disposed at the bottom of the support housing (41), a longitudinal tensioning wheel (55) disposed at the bottom of the support seat (52) and used to support the bottom of the conveyor track (51), two telescopic cylinders (53) horizontally disposed on the support seat (52), a horizontal slide seat disposed at the end of the telescopic cylinder (53), and a transverse tensioning wheel (54) disposed on the horizontal slide seat and used to support the bottom side wall of the conveyor track (51).

2. The bored pile head removal device according to claim 1, characterized in that: The tractor (1) is also equipped with a cargo bed (11) and a rear hoisting mechanism (2). The front hoisting mechanism (3) and the rear hoisting mechanism (2) have the same structure. Or / and, wherein the front lifting mechanism (3) includes a rotating column mounted on the front end of the tractor (1) via a support bearing, a telescopic cylinder for adjusting the deflection of the rotating column, a boom hinged on the rotating column, a hydraulic cylinder for adjusting the lifting and deflection of the boom, and a lifting winch mounted on the boom. The wire rope on the hoisting winch is connected to the upper end of the cleaning mechanism (4).

3. The pile head removal device for bored cast-in-place piles according to claim 1, characterized in that: The external connection of the supporting shell (41) is reinforced with ribs.

4. The bored pile head removal device according to claim 1, characterized in that: Two transverse tensioning rollers (54) are symmetrically arranged on the horizontal slide block.

5. The bored pile head removal device according to claim 1, characterized in that: Multiple cleaning shovels (44) are evenly spaced on the conveyor belt (51).

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