CN111576418B

CN111576418B - Vibrating rotary pile driver

Info

Publication number: CN111576418B
Application number: CN202010510932.6A
Authority: CN
Inventors: 张润民
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-10-29
Anticipated expiration: 2040-06-08
Also published as: CN111576418A

Abstract

The invention discloses a vibrating rotary pile driver. Comprises a pile body, a rotary pile body, a wheel disc and a chain wheel. The chain wheel and the chain wheel are arranged on the frame, a chain is arranged on the chain wheel, a steel wire rope is arranged on the chain wheel, the other end of the steel wire rope is fixedly connected with the chain on the chain wheel, the other end of the chain on the chain wheel is connected with the pile body, and the lower end of the pile body is connected with the rotating body through a bearing and a support. The pile body and the rotating pile body are of cylindrical structures, and the bottom of the rotating pile body is provided with a pile head of a pyramid structure. The upper end in the pile body is provided with a motor, and the lower end is provided with a stabilizer. The stabilizer through upper and lower pivot and bearing, support setting on pile body inside wall, the last pivot of stabilizer passes through the shaft coupling to be connected with the motor pivot, the lower pivot is connected with the universal joint shaft coupling, pile head inside be provided with the eccentric block, the eccentric block is connected with the universal joint shaft coupling through the pivot. Generally, the invention has the advantages of simple structure, low cost, clean energy, no pollution, low noise and no carbon dioxide emission.

Description

Vibrating rotary pile driver

Technical Field

The invention belongs to the technical field of machinery, and relates to a pile driver, in particular to a vibrating rotary pile driver which is clean in energy, free of pollution, low in noise and free of carbon dioxide emission.

Background

The pile driver consists of a pile hammer, a pile frame and accessory equipment. The pile hammer is attached between two parallel vertical guide rods (commonly called gantry) at the front part of the pile frame and is hoisted by a hoisting hook. The pile frame is a steel structure tower frame, and a winch is arranged at the rear part of the pile frame and used for hoisting a pile hammer; the front of the pile frame is provided with a guide frame consisting of two guide rods and used for controlling the piling direction so that the pile hammer can be accurately poured into the stratum according to the design direction; the power source of the pile hammer according to the movement can be divided into a drop hammer, a steam hammer, a diesel hammer, a hydraulic hammer and the like; at present, the diesel hammer pile driver relies on explosive force generated after diesel oil is combusted, and soil is squeezed to move outwards by vertical downward force generated by a piston and a pile head. Although the device has good effect for a long time, the device has the fatal defects of huge device, high cost, insufficient diesel combustion, waste gas pollution, carbon dioxide emission and the like.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the vibrating rotary pile driver which has the advantages of simple structure, low manufacturing cost, clean energy, no pollution, low noise and no carbon dioxide emission.

The purpose of the invention is realized as follows: a vibrating and rotating pile driver comprises a pile body, a rotating pile body, a chain wheel, a wheel disc, a chain arranged on the chain wheel and a steel wire rope arranged on the wheel disc; the wheel disc and the chain wheel are arranged on the frame.

The wheel disc is provided with three-phase power lines in parallel, and the power lines and the steel wire ropes are respectively arranged in two wheel grooves on the wheel disc; the wheel disc shaft is provided with three copper rings which are respectively connected with three power lines, and the wheel disc shaft is simultaneously provided with a speed reducer and a control motor for lifting the pile body.

A power line is fixedly arranged on the chain wheel; the chain and the power line are respectively connected with the steel wire rope and the power line on the wheel disc; the other end of the chain is connected with the pile body, and the other end of the power line is connected with the motor.

The pile body be the cylinder structure, be provided with the motor in the pile body upper portion, the lower part is provided with the stabilizer, the stabilizer sets up on the pile body inside wall through upper and lower pivot and bearing, support, the last pivot of stabilizer is connected with the motor pivot through the shaft coupling, the pivot is connected with the universal joint shaft coupling down.

The pile body is connected with the rotary pile body through a bearing and a bracket.

The rotating pile body is of a cylindrical structure, the bottom of the rotating pile body is provided with a pile head of a pyramid structure, an eccentric block is arranged inside the pile head, the eccentric block is arranged on the inner side wall of the pile head through an upper rotating shaft, a lower rotating shaft, a bearing and a support, and the upper rotating shaft of the eccentric block is connected with a universal joint coupler.

When the pile head and rotating pile body vibrating device works, a motor in the pile body is started firstly, so that the stabilizer and the eccentric block are driven to rotate at a high speed, and the pile head and the rotating pile body start to vibrate under the action of centrifugal force of the eccentric block; the reaction force generated by the rotation of the motor is set by the chain and the chain wheel, so that the pile body can be prevented from rotating in the direction of three hundred sixty degrees in the working process, and the purpose of limiting the rotation of the pile body is achieved; the gyro effect of the stabilizer during high-speed rotation makes the vibration moment of the pile head and the rotating pile body not be transmitted to the pile body and the frame to generate useless work.

Then starting a control motor arranged on the wheel disc to enable the pile head to enter a soil layer to strike soil to move outwards, and the reaction force generated by the soil moving outwards enables the pile head and the rotating pile body to generate a rotating moment in the direction opposite to that of the eccentric block; the bearing between the pile body and the rotary pile body is connected, so that the rotary torque does not need to be transmitted to the pile body and the frame to do useless work, and meanwhile, the pile head starts to rotate in the opposite direction; due to the particularity of the pyramid structure of the pile head, under the action of high-frequency vibration and low-speed rotation, the electric energy of the power supply can be more effectively converted into the kinetic energy for piling, so that the aim of piling is fulfilled.

Generally, the invention has the advantages of simple structure, low cost, clean energy, no pollution, low noise and no carbon dioxide emission, and is an ideal substitute product for the diesel pile driver.

Drawings

Fig. 1 is a schematic view of the overall operation structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the pile body and the rotating pile body of the invention.

In the figure: 1 is a pile body, 2 is a rotating pile body, 3 is a pile head, 4 is a chain, 5 is a chain wheel, 6 is a steel wire rope, 7 is a wheel disc, 8 is a motor, 9 is a stabilizer, 10 is a bearing, 11 is a universal joint coupler, 12 is an eccentric block bearing, 13 is a coupler, 14 is an eccentric block, 15 is a motor bearing, and 16 is a stabilizer bearing.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings; as shown in fig. 1-2, a vibratory rotary pile driver includes: a pile body 1; rotating the pile body 2; a hexagonal pyramid pile head 3; a sprocket 5 and a chain 4 disposed on the sprocket 5; rim plate 7 and the wire rope 6 of setting on rim plate 7, wire rope 6's the other end and 4 fixed connection of chain, the other end and the pile body 1 of chain 4 be connected, pile body 1 is the cylinder structure, its bottom is passed through bearing 10 and is connected with rotation pile body 2, rotation pile body 2 be the cylinder structure, its bottom is provided with the pile head 3 of hexagonal pyramid structure.

A power line is fixedly arranged on the chain 4 and connected with a motor 8 in the pile body, the other end of the power line and a steel wire rope 6 are arranged in two wheel grooves on the wheel disc 7 in parallel, three copper rings are arranged on a shaft of the wheel disc 7 and are respectively connected with three connectors of the power line, three carbon brushes are respectively arranged on the copper rings, and the carbon brushes are connected to a starting switch through wires; the wheel disc 7 is also provided with a speed reducer and a variable speed motor, and the variable speed motor is connected to the control switch through a lead.

The pile body 1 is made of steel materials with the diameter of 500 mm, the height of 2800 mm and the thickness of 20 mm, and the rotary pile body 2 is cast by steel materials with the diameter of 500 mm, the height of 2000 mm and the thickness of 150 mm; the pile head 3 is of a hexagonal pyramid structure and is cast by steel materials with the diagonal length of 500 mm and the height of 1000 mm at the bottom; the length of the chain 4 is 22 meters. The chain wheels 5 are provided with 4 chain wheels and the wheel discs 7 are provided with 1 chain wheel, and are arranged on the frame together. The pile driver can drive piles with the diameter of 500 mm and the depth of 20 m.

The motor 8 is a three-phase dipolar 90-kilowatt motor, and the motor bearing 15 is 2 sets of single-row radial bearings; the stabilizer 9 is cast by a solid iron material with the diameter of 400 mm and the height of 1000 mm; the bearing 16 is a 2-set cylindrical roller bearing; the bearing 10 is a self-aligning roller bearing; the eccentric block bearing 12 is a 2-set conical roller bearing, a rotating shaft with the diameter of 60 mm is arranged in the rotating pile body, and the rotating shaft is connected with the eccentric block 14 and the universal joint coupler 11.

During operation, after the motor 8 is started, the stabilizer 9 and the eccentric block 14 are driven to rotate at 2970 revolutions per minute, the eccentric block enables the pile head 3 and the rotary pile body 2 to vibrate at high frequency in the horizontal direction under the action of centrifugal force, and reaction force generated when the motor 8 rotates prevents the pile body from rotating through the arrangement of the chain 4.

Under the combined action of the gyro effect of the arranged universal joint coupler 11, the self-aligning roller bearing 10 and the stabilizer 9 during high-speed rotation, the kinetic energy of high-frequency vibration and low-speed rotation of the pile head 3 is prevented from being transmitted to the pile body to generate useless power, so that the kinetic energy of high-frequency vibration and low-speed rotation generated by the pile head 3 is more efficiently converted into useful power for hitting soil, and the purpose of piling is achieved.

In general, the invention has the advantages of low frame, deep pile driving, low equipment cost, no diesel oil, no pollution and the like.

Claims

1. A vibrating rotary pile driver comprises a pile body, a rotary pile body, a wheel disc, a chain wheel and a chain arranged on the chain wheel; the method is characterized in that: the wheel disc and the chain wheel are arranged on the frame, and a chain is arranged on the chain wheel; the other end of the steel wire rope is fixedly connected with a chain on the chain wheel; the other end of the chain on the chain wheel is connected with the pile body; the pile body is of a cylindrical structure, a motor is arranged in the upper part of the pile body, a stabilizer is arranged in the lower part of the pile body, and the stabilizer is arranged on the inner side wall of the pile body through a rotating shaft, a bearing and a bracket; the upper rotating shaft of the stabilizer is connected with a rotating shaft of the motor through a coupler, the rotating pile body is of a cylindrical structure, the bottom of the rotating pile body is provided with a pile head of a polygonal pyramid structure, and an eccentric block is arranged inside the pile head; the eccentric block is arranged on the inner side wall of the pile head through a rotating shaft, a bearing and a bracket.

2. A vibratory rotary pile driver as set forth in claim 1 wherein: there is a self-aligning roller bearing and a support connecting the pile body and the rotating pile body.

3. A vibratory rotary pile driver as set forth in claim 1 wherein: there is a universal joint coupling connecting the stabilizer rotating shaft and the eccentric block rotating shaft.