CN115142414A

CN115142414A - Hydraulic pile driver

Info

Publication number: CN115142414A
Application number: CN202210857412.1A
Authority: CN
Inventors: 刘统久
Original assignee: Hebei University of Engineering
Current assignee: Hebei University of Engineering
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-10-04

Abstract

The invention relates to the technical field of pile drivers, in particular to a hydraulic pile driver which comprises a pile frame, a hydraulic cylinder and a pile hammer, wherein the hydraulic cylinder is arranged on the pile frame, the pile hammer is fixed with a piston rod of the hydraulic cylinder, the hydraulic pile driver also comprises a grabbing mechanism positioned right below the pile hammer, the grabbing mechanism comprises a turning plate which is hinged with the pile frame and can be vertically turned, a pushing device for driving the turning plate to turn, and two C-shaped-structure clamping plates which are symmetrically arranged on one side of the turning plate, sliding blocks are arranged on the clamping plates, sliding holes matched with the sliding blocks are formed in the turning plate in the width direction, and the two sliding blocks are connected through a double-head screw rod. According to the pile body vertical turning device, the clamping mechanism comprising the turning plate, the pushing device, the clamping plate, the sliding block, the sliding hole and the double-end screw rod is arranged, a pile body horizontally placed on the ground can be clamped through the clamping plate on the turning plate before piling, the pile body is vertically turned over by the pushing device, the pile body can be easily placed vertically, and the pile body placing before piling and the pile body stability during piling are facilitated.

Description

Hydraulic pile driver

Technical Field

The invention relates to the technical field of pile drivers, in particular to a hydraulic pile driver.

Background

The pile driver is a piling machine which utilizes impact force to drive a pile into a stratum, and can be divided into a drop hammer, a steam hammer, a diesel hammer, a hydraulic hammer and the like according to the power source of the movement of the pile hammer, the hydraulic hammer pile driver is driven by a diesel engine, the hydraulic pressure is used as the power, the hydraulic pressure can be adjusted according to different soil qualities of the stratum, so that the pile is driven by proper impact force, the hydraulic hammer pile driver is commonly used for piling a highway guardrail and constructing the highway guardrail, and the traditional hydraulic pile driver can cause large noise of a construction site due to the impact of the pile hammer and a pile body when in use.

The prior patent with publication number CN214573933U discloses a large-scale high-efficiency hydraulic pile driver for constructional engineering, which is characterized in that a pneumatic vibrator is fixedly connected to the lower end of a hydraulic rod, the hydraulic rod pushes the pneumatic vibrator to be fitted with the upper surface of a pile body, and the pneumatic vibrator transmits kinetic energy to the pile body, so that the lower end of the pile body can be quickly inserted into the ground, and the large-scale high-efficiency hydraulic pile driver has the advantages of high construction efficiency, low noise and the like. However, before the large efficient hydraulic pile driver for construction engineering is used, the pile body needs to be vertically placed by manpower or other equipment, and then the pile can be driven, so that the vertical placement of the pile body is extremely difficult for the pile body with large construction weight and long length, and the overall construction progress is finally influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a hydraulic pile driver, which enables a pile body to be easily and vertically placed and solves the problem that the existing pile body, especially the pile body with larger weight and longer length, is difficult to be vertically placed.

(II) technical scheme

In order to achieve the purpose that the pile body can be easily and vertically placed, the invention provides the following technical scheme: the utility model provides a hydraulic pile driver, includes pile frame, pneumatic cylinder and pile hammer, the pneumatic cylinder is installed on the pile frame, the pile hammer with the piston rod of pneumatic cylinder is fixed, hydraulic pile driver is still including being located snatch the mechanism under the pile hammer, snatch the mechanism include with the pile frame is articulated and can overturn perpendicularly turn over board, drive turn over the thrust unit and the symmetry of board upset and locate turn over the splint of two C type structures of board one side, be equipped with the slider on the splint, turn over on the board along width direction open have with the slide opening of slider looks adaptation, two connect through the double-end lead screw between the slider.

Optionally, a motor is installed on the turning plate, and the output end of the motor is fixed with one end of the double-end lead screw.

Optionally, the pushing device is an electric push rod, and two ends of the electric push rod are respectively hinged with the turning plate and the pile frame.

Optionally, one side of each of the two clamping plates opposite to the clamping plate is provided with a clamping wheel, and the wheel surface of each clamping wheel is in the shape of an inwards concave arc.

Optionally, each clamping plate is provided with a plurality of clamping wheels, and the clamping wheels are distributed along the length direction of the clamping plate at equal intervals.

Optionally, connecting seats are fixedly arranged on the pile frames on two sides of the turning plate, and one end of the turning plate is hinged to the connecting seats through a pin shaft.

Optionally, the hydraulic pile driver further comprises a trolley, the pile frame is mounted on a head of the trolley, and a hydraulic station for driving the hydraulic cylinder to act is mounted on the trolley.

(III) advantageous effects

Compared with the prior art, the invention provides a hydraulic pile driver, which has the following beneficial effects:

1. according to the pile driving device, the clamping mechanism comprising the turning plate, the pushing device, the clamping plate, the sliding block, the sliding hole and the double-end screw rod is arranged, the pile body horizontally placed on the ground can be clamped through the clamping plate on the turning plate before pile driving, the pushing device is utilized to vertically turn the pile body, the pile body can be easily and vertically placed, the pile body before pile driving and the pile body during pile driving are convenient to place and stable, and meanwhile the pile driving efficiency is improved;

2. according to the invention, the motor for driving the double-end screw rod to rotate is arranged on the turning plate, and the double-end screw rod is driven to rotate by the motor, so that the two clamping plates can be close to or far away from each other, and the function of clamping the pile body is better realized;

3. according to the pile driving device, the clamping wheels are arranged, so that the clamping wheels on the two clamping plates are clamped on the two sides of the pile body in the pile driving process, the pile body can be prevented from shaking, and meanwhile, the friction force between the pile body and the clamping plates when the pile body moves downwards is reduced, so that the resistance when the pile body moves downwards is reduced, and the pile driving efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a grasping mechanism according to the present invention;

fig. 3 is a schematic diagram of a disassembled structure of the grabbing mechanism of the present invention.

In the figure: 1. pile frames; 2. a hydraulic cylinder; 3. a grabbing mechanism; 30. turning over a plate; 300. a slide hole; 31. a splint; 310. a slider; 32. an electric push rod; 33. a double-end screw rod; 4. a trolley; 5. a pile hammer; 6. a clamping wheel; 7. a motor; 8. a connecting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1 to fig. 3, an embodiment of the present invention provides a technical solution: the utility model provides a hydraulic pile driver, including pile frame 1, pneumatic cylinder 2 and pile hammer 5, pneumatic cylinder 2 is installed on pile frame 1, pile hammer 5 is fixed with the piston rod of pneumatic cylinder 2, hydraulic pile driver is still including being located the grabbing mechanism 3 under pile hammer 5, it includes the board 30 that turns over that articulates and can overturn perpendicularly with pile frame 1 to grab mechanism 3, the drive turns over the thrust unit of board 30 upset and the splint 31 of two C type structures of board 30 one side are located to the symmetry, it is fixed with connecting seat 8 to be equipped with on the pile frame 1 that lies in turning over board 30 both sides, it is articulated through the round pin axle between board 30 one end and the connecting seat 8 to turn over, be equipped with slider 310 on the splint 31, it has the slide opening 300 with slider 310 looks adaptation to open along the width direction on the board 30 to turn over, connect through double-end lead screw 33 between two sliders 310, before the pile driving, utilize thrust unit to turn over board 30 to overturn 90 degrees perpendicularly downwards, after splint 31 presss from both sides the clamp and gets the pile body, the board 30 that the clamp gets the pile body upwards overturn perpendicularly 90 degrees, make the board 30 that gets the pile body is reset, make the vertical can be vertical, make the pile body can be vertical easily by the vertical, be carried out, be favorable to carry out, be gone on the pile driving, place, the stability of pile body and the stability and the efficiency when pile efficiency when having guaranteed.

In order to better clamp the pile body by the two clamping plates 31, on the basis of the above embodiment, the motor 7 is installed on the turning plate 30 in this embodiment, the output end of the motor 7 is fixed with one end of the double-head screw rod 33, and the double-head screw rod 33 is driven to rotate by the motor 7, so that the two clamping plates 31 can be close to or far away from each other, and the function of clamping the pile body is realized.

On the basis of the above embodiments, the pushing device in this embodiment is the electric push rod 32, two ends of the electric push rod 32 are respectively hinged with the turning plate 30 and the pile frame 1, and the pushing device may also be an air cylinder, an oil cylinder or other devices capable of achieving a telescopic function.

On the basis of above-mentioned embodiment, the just right one side of two splint 31 all is equipped with centre gripping wheel 6 in this embodiment, and the wheel face of centre gripping wheel 6 is convex of indent, is equipped with a plurality of centre gripping wheels 6 on every splint 31, and a plurality of centre gripping wheels 6 distribute along the length direction equidistance of splint 31, the pile in-process, and centre gripping wheel 6 can avoid the pile body to take place to rock simultaneously, when reducing the pile body and move down with splint 31 between the frictional force to reduce the resistance when the pile body moves down, improve pile efficiency.

On the basis of the above embodiments, the hydraulic pile driver in this embodiment further includes a trolley 4, the pile frame 1 is mounted on the head of the trolley 4, the trolley 4 is mounted with a hydraulic station for driving the hydraulic cylinder 2 to move, and the trolley 4 can facilitate the movement and transition of the hydraulic pile driver.

The working principle is as follows: during pile driving, the pile frame 1 is moved to the side of a pile body through the trolley 4, then the turning plate 30 is vertically turned for 90 degrees downwards towards one side of the pile body through the electric push rod 32, two clamping plates 31 on the turning plate 30 are located on two sides of the pile body, then the motor 7 is started, the motor 7 drives the double-end lead screw 33 to rotate clockwise, the double-end lead screw 33 drives the two clamping plates 31 to be close to each other, the two clamping plates 31 are clamped on two sides of the pile body, then the turning plate 30 which is clamped with the pile body is pushed and clamped to vertically turn for 90 degrees upwards and then reset, the pile body is vertically placed coaxially with the pile hammer 5, finally, downward impact force is provided for the pile hammer 5 through the hydraulic cylinder 2, and the bottom of the pile body is inserted into the ground under the impact of the pile hammer 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydraulic pile driver, includes pile frame (1), pneumatic cylinder (2) and pile hammer (5), install pneumatic cylinder (2) on pile frame (1), pile hammer (5) with the piston rod of pneumatic cylinder (2) is fixed, its characterized in that: the hydraulic pile driver is characterized by further comprising a grabbing mechanism (3) located under the pile hammer (5), wherein the grabbing mechanism (3) comprises a turning plate (30) which is hinged to the pile frame (1) and can be vertically turned, a driving device for driving the turning plate (30) to turn and clamping plates (31) which are symmetrically arranged on two C-shaped structures on one side of the turning plate (30), a sliding block (310) is arranged on the clamping plates (31), and a sliding hole (300) matched with the sliding block (310) is formed in the turning plate (30) in the width direction and connected with the sliding block (310) through a double-end lead screw (33).

2. A hydraulic pile driver as claimed in claim 1, characterised in that: the turning plate (30) is provided with a motor (7), and the output end of the motor (7) is fixed with one end of the double-end screw rod (33).

3. A hydraulic pile driver as claimed in claim 1, characterised in that: the pushing device is an electric push rod (32), and two ends of the electric push rod (32) are respectively hinged with the turning plate (30) and the pile frame (1).

4. A hydraulic pile driver as claimed in claim 1, characterised in that: and one side of the two clamping plates (31) opposite to each other is provided with a clamping wheel (6), and the wheel surface of each clamping wheel (6) is in the shape of an inwards concave arc.

5. Hydraulic pile driver according to claim 4, characterised in that: every be equipped with a plurality of centre gripping wheels (6) on splint (31), it is a plurality of centre gripping wheel (6) are followed the length direction equidistance of splint (31) distributes.

6. A hydraulic pile driver as claimed in claim 1, characterised in that: the pile frame (1) positioned on two sides of the turning plate (30) is fixedly provided with a connecting seat (8), and one end of the turning plate (30) is hinged with the connecting seat (8) through a pin shaft.

7. A hydraulic pile driver as claimed in claim 1, characterised in that: the hydraulic pile driver further comprises a trolley (4), the pile frame (1) is installed on the head of the trolley (4), and a hydraulic station for driving the hydraulic cylinder (2) to move is installed on the trolley (4).