CN112227367B - Pile cutting method of pile cutting machine - Google Patents
Pile cutting method of pile cutting machine Download PDFInfo
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- CN112227367B CN112227367B CN202011058404.8A CN202011058404A CN112227367B CN 112227367 B CN112227367 B CN 112227367B CN 202011058404 A CN202011058404 A CN 202011058404A CN 112227367 B CN112227367 B CN 112227367B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- 238000001514 detection method Methods 0.000 claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims description 34
- 238000012544 monitoring process Methods 0.000 claims description 3
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/04—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by cutting-off under water
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Abstract
The invention provides a pile cutting method of a pile cutting machine, wherein the pile cutting machine comprises a machine base, a swing mechanism, a pile cutting detection device and a swing detection device; the outer wall surface of the machine base is provided with a fixing device, and the rotating device is arranged in the machine base; the pile cutting mechanism is positioned below the swing mechanism and connected with the swing mechanism; the steel pile is detected in real time through a pile cutting detection device, and the rotation detection device detects the rotation angle of the pile cutting mechanism in real time; the pile cutting driving device drives the pile cutting part to rotate, and the pile cutting extending device drives the pile cutting part to extend out of the pile cutting support to cut the steel pile; the pile cutting part is contacted with the steel pile in a rotating state and is cut; therefore, the pile cutting part can be prevented from being contacted with the steel pile and then rotated, so that the cutting opening on the steel pile clamps the pile cutting part, and the pile cutting part is damaged; the pile cutting machine has good control effect and long service life.
Description
Technical Field
The invention relates to the field of pile foundation cutting, in particular to a pile cutting method of a pile cutting machine.
Background
With the urbanization and industrialization development of China, the demands of domestic water and industrial water are increasing day by day, different types of diversion projects are being drawn up, expanded and newly built around the country, and in order to ensure the quality of water quality, reduce the water treatment cost and reduce the subsequent operation cost, the water intake head is expanding towards the middle of a river or a lake. The water intake head after expansion is mostly positioned at the position with water depth, flow urgency and wide water area; the working procedure of driving the steel pile into the water intake head and cutting the steel pipe pile underwater is carried out in the water intake head construction process; the existing construction and cutting of the steel pipe pile are not in place, manual multiple launching operation is needed, pile cutting efficiency is not high, and the problems that whether cutting is completed or not and procedures are complicated are not convenient to judge are solved.
An underwater pile cutting device is disclosed in Chinese patent application No. 201921149039.4, publication No. 2020.5.5; the underwater pile cutting device comprises an operation platform arranged on the water surface; a transverse bracket and a vertical bracket are vertically arranged on the operating platform; the vertical support is a lifting support, a driving wheel is arranged on the vertical support, and the driving wheel is connected with a driving motor for driving the driving wheel; the transverse bracket is provided with a guide wheel set, the bottom side of the transverse bracket is connected with a support plate, and the support plate is provided with a driven wheel set comprising a first driven wheel and a second driven wheel.
But the diamond wire saw of the pile cutting device is arranged on the outer wall of the pile foundation to be cut in a holding mode, and the diamond wire saw is driven by the driving mechanism to cut the pile foundation to be cut; the diamond wire saw can only cut the pile foundation to be cut along one direction; when cutting is carried out, a large friction force is generated between the diamond wire saw and a pile foundation to be cut, so that the cutting efficiency is low, and the service life of the diamond wire saw is short; meanwhile, the diamond wire saw is of a flexible structure, and the cutting direction of the diamond wire saw is easy to change up and down when the diamond wire saw is used for cutting the pile foundation to be cut; the plane can not be accurately cut, and the cutting effect is poor; thus, the pile cutting device is not suitable for working scenes with precision requirements on cutting surfaces; meanwhile, when cutting is carried out, the force which is applied to the diamond wire saw to approach the operating platform is used, so that the diamond wire saw is in friction with the pile foundation to be cut, and the diamond wire saw is used for cutting the pile foundation to be cut; the pile cutting device can only give unidirectional force to the diamond rope saw, when the diamond rope saw cuts the pile foundation to be cut, the diamond rope saw cannot be separated from the pile foundation to be cut, only after the diamond rope saw finishes cutting the pile foundation to be cut, the diamond rope saw can be separated from the pile foundation to be cut, once an error cutting point is selected, the error cutting point cannot be reselected in time, and only after one-time cutting is finished, correct cutting point cutting is selected; this has poor control effect.
Disclosure of Invention
The invention provides a pile cutting method of a pile cutting machine, which has good pile cutting effect and control effect.
In order to achieve the purpose, the technical scheme of the invention is as follows: a pile cutting method of a pile cutting machine comprises a machine base, a swing mechanism, a pile cutting detection device and a swing detection device; the outer wall surface of the machine base is provided with a fixing device, and the rotating device is arranged in the machine base; the pile cutting mechanism is positioned below the swing mechanism and connected with the swing mechanism;
the slewing mechanism comprises a slewing device and a transmission device; the rotating device passes through the transmission device and is arranged in the base; the transmission device comprises a transmission fixing piece and a transmission piece arranged on the transmission fixing piece; the rotating device comprises a rotating shaft, a rotating connecting piece and a rotating driving motor; the rotary connecting piece is connected with the rotating shaft; the rotary driving motor is fixed on the rotary connecting piece; the rotary driving motor is provided with a driving piece, and the driving piece is matched with the transmission piece;
the pile cutting mechanism device comprises a pile cutting support, a pile cutting driving device, a pile cutting extending device, a pile cutting connecting device and a pile cutting part, wherein the pile cutting driving device, the pile cutting extending device, the pile cutting connecting device and the pile cutting part are arranged in the pile cutting support; one end of the pile cutting connecting device and one end of the pile cutting extending device are respectively connected with the inner wall of the pile cutting support, one end of the pile cutting connecting device rotates on the cross section of the pile cutting support around the connecting position of the pile cutting connecting device and the inner wall of the pile cutting support, the pile cutting support is connected with the rotating device, and the rotating device drives the pile cutting support to rotate;
the pile cutting connecting device comprises a hinged moving part, a connecting piece and a fixing piece, wherein the hinged moving part is hinged with the inner wall of the pile cutting support; the connecting piece is connected with the hinged movable piece, and the fixed piece is connected with the connecting piece; the pile cutting part is arranged on the fixing part; the pile cutting driving device drives the pile cutting part to rotate; the pile cutting extending device is connected with the connecting piece; the pile cutting support is provided with a pile cutting opening; the pile cutting extending device drives the pile cutting part to penetrate through the pile cutting opening to extend out and retract the pile cutting support along the moving direction of the pile cutting connecting device;
the fixing device comprises a fixing supporting leg and an adjusting device; the adjusting device comprises an adjusting supporting foot and an adjusting piece; the adjusting piece is arranged on the adjusting arm brace;
the pile cutting method of the pile cutting machine comprises the following steps:
1) moving the pile cutting machine into the steel pile to be cut; fixing the steel piles; starting a pile cutting detection device and a rotation detection device;
2) the adjusting piece is far away from the outer wall of the machine base, the piece to be adjusted and the fixed supporting leg are both contacted with the inner wall surface of the steel pile, and the fixing device is stably fixed in the steel pile;
3) starting the pile cutting driving device, and driving the pile cutting part to rotate by the pile cutting driving device;
4) the pile cutting extension device drives the pile cutting part to extend out of the pile cutting support, and the pile cutting part cuts the steel pile; the pile cutting detection device detects the steel pile in real time, and step 5) is carried out according with the detection result;
5) the pile cutting extending device drives the pile cutting part to withdraw the pile cutting support, and the swing mechanism drives the pile cutting mechanism to rotate by a preset angle; judging whether pile cutting is finished or not, and repeating the step 4) if the pile cutting is not finished, until the swing mechanism drives the pile cutting mechanism to rotate 360 degrees, and the steel pile cutting is finished; carrying out step 6);
6) closing the pile cutting driving device, driving the pile cutting part to withdraw the pile cutting support by the pile cutting extending device, closing the pile cutting detection device and the rotation detection device by the adjusting part close to the outer wall of the machine base, and moving the pile cutting machine and the cut steel pile away.
Further, the coincidence detection result in the step 4) is as follows: the pile cutting member penetrates the steel pile.
Further, the rotation detection device carries out real-time monitoring, when the rotation angle of the pile cutting mechanism reaches a preset angle, the rotation detection device sends a signal to the rotation mechanism, and the rotation mechanism stops rotating.
Further, the preset angle is 25 °.
Further, the step 1) specifically comprises: the pile cutting machine is connected with a hanging beam of a crane, and the crane moves the pile cutting machine into the steel pile; the steel pile is fixed with a hanging beam of a crane; starting the pile cutting detection device and starting the rotation detection device.
According to the pile cutting method, the pile cutting machine is moved into the steel pile; fixing the steel piles; therefore, the cut steel pile can be conveniently lifted away. Then starting the pile cutting detection device and the rotation detection device; the pile cutting detection device detects the steel pile in real time, and the rotation detection device detects the rotation angle of the pile cutting mechanism in real time; therefore, the operation can be carried out according to the detection result, and the control effect is good; then the adjusting piece is controlled to be far away from the outer wall of the machine base, and the adjusting piece and the fixed supporting leg are in contact fixation with the inner wall surface of the steel pile; the pile cutting machine is fixed inside the steel pile through the fixing device, so that pile cutting is facilitated; then, the pile cutting driving device drives the pile cutting part to rotate, and the pile cutting extending device drives the pile cutting part to extend out of the pile cutting support to cut the steel pile; the pile cutting part is contacted with the steel pile in a rotating state and is cut; therefore, the pile cutting part can be prevented from being contacted with the steel pile and then rotated, so that the cutting opening on the steel pile clamps the pile cutting part, and the pile cutting part is damaged; the pile cutting effect is good, and meanwhile, when the cutting position of the steel pile is detected to be in accordance with the cutting position, the condition that the pile cutting part penetrates through the current cutting position of the steel pile is met, the next step is carried out, and then the pile cutting mechanism rotates; therefore, the pile cutting mechanism can be ensured to complete 360-degree rotation; separating the cut steel pile from the lower end of the steel pile; meanwhile, the rotation angle of the pile cutting mechanism is controlled to be 25 degrees each time; when the pile cutting detection device detects that the current cutting position is penetrated by the pile cutting part, the pile cutting mechanism rotates; can avoid having between the different cutting positions on the piling bar not to cut the position like this, can avoid the turned angle undersize simultaneously and lead to work efficiency low. And then after the steel pile cutting is finished, the pile cutting machine and the cut steel pile are lifted away through a lifting beam of a crane.
Drawings
Fig. 1 is a schematic structural view of a pile cutting machine using the present invention.
Fig. 2 is a schematic structural diagram of a pile cutting mechanism of the pile cutting machine.
Fig. 3 is an enlarged view of a in fig. 1.
Fig. 4 is a distribution schematic diagram of a fixing device of a pile cutting machine using the invention.
Fig. 5 is a using state diagram of the pile cutting part for withdrawing the pile cutting support of the pile cutting machine.
Fig. 6 is a using state diagram of the pile cutting part extending out of the pile cutting support of the pile cutting machine.
FIG. 7 is a flow chart of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-7; a pile cutting method of a pile cutting machine comprises a machine base 1, a swing mechanism 2, a pile cutting mechanism 3, a pile cutting detection device (not shown in the figure) and a swing detection device (not shown in the figure); in this embodiment, the pile cutting detection device is a pressure detector. Detecting whether the pile cutting part 35 cuts through the steel pile 5 by arranging a pile cutting detection device; detecting the rotation angle of the rotation mechanism 2 by arranging a rotation detection device; therefore, the pile cutting machine can be controlled according to the detection result. The outer wall surface of the machine base 1 is provided with a fixing device 4, the fixing device 4 is used for fixing the machine base 1, and the swing mechanism 2 is arranged in the machine base 1; the pile cutting mechanism 3 is positioned below the swing mechanism 2 and connected with the swing mechanism 2.
More than one group of fixing devices 4 are arranged; in the present embodiment, the fixing device 4 is provided with two sets; one group is arranged at the upper end of the outer wall surface of the machine base 1; the other group is arranged at the lower end of the outer wall surface of the machine base 1; thus, the fixing effect is good.
The set of fixing means 4 comprises a fixing arm 41 and adjusting means 42; more than one fixed supporting foot 41 and more than one adjusting device 42 are respectively arranged; in the present embodiment, two fixed braces 41 are provided, and one adjusting device 42 is provided. The fixed supporting feet 41 and the adjusting device 42 are uniformly distributed on the outer wall surface of the machine base 1 at the same horizontal height. The pile cutting machine can be fixed in the steel pile 5 through the fixing device 4 by arranging the fixed supporting feet 41; the setting of the adjusting device 42 enables the pile cutter to be fixed in steel piles 5 of different sizes.
The adjusting device 42 comprises an adjusting arm 421 and an adjusting piece 422; in this embodiment, the adjuster 422 is a hydraulic ram. The adjusting piece 422 is installed on the adjusting supporting foot 421, and the adjusting piece 422 is far away from and close to the outer wall surface of the machine base 1. The pile cutting machine can be fixed in steel piles 5 with different sizes by the adjusting piece 422 far away from and close to the outer wall surface of the machine base 1; when the adjusting piece 422 is far away from the outer wall surface of the machine base 1, the distance between the adjusting piece 422 and the outer wall surface of the machine base 1 is increased; at this time, the pile cutting machine can be arranged in the steel pile 5 with larger inner diameter; when the adjusting piece 422 is close to the outer wall surface of the machine base 1, the distance between the adjusting piece 422 and the outer wall surface of the machine base 1 is reduced; the pile cutting machine can be arranged in the steel pile 5 with smaller inner diameter size.
The outer wall surface of the machine base 1 is provided with a sealing door 11 communicated with the inside. The rotary device 21 arranged in the machine base 1 is overhauled by arranging the sealing door 11; meanwhile, the sealing door 11 is arranged in a sealing manner, so that water is prevented from entering the machine base 1 under the action of pressure, and further the rotating device 21 is prevented from being damaged.
The slewing mechanism 2 comprises a slewing device 21 and a transmission device 22; the transmission device 22 is arranged on the inner wall surface of the machine base 1, and the rotating device 21 penetrates through the transmission device 22 and is arranged in the machine base 1; the rotating device 21 rotates around the transmission device 22; the swing device 21 includes a rotation shaft 211, a swing link 212, and a swing driving device 213; in the present embodiment, the slewing drive device 213 is a hydraulic motor. The rotary connector 212 is connected with the rotating shaft 211; the rotary drive device 213 is fixed on the rotary connector 212; the rotary drive 213 is provided with a drive 214. The transmission device 22 comprises a transmission connecting fixing piece 221 and a transmission piece 222; the transmission piece 222 is installed on the transmission connection fixing piece 221; drive 222 is an annulus gear. The driving member 214 is an external gear that mates with the driving member 222. The driving member 214 is engaged with the driving member 222, and when the driving member 214 rotates, the driving member 222 should rotate, but since the outer wall surface of the base 1 is connected with the fixing device 4, the fixing device 4 is fixed inside the steel pile. The machine base 1 is fixed, the transmission member 222 is also fixed, when the driving member 214 rotates, the transmission member 222 cannot rotate, and thus the rotary driving device 213 is driven to rotate around the transmission member 222; meanwhile, the rotation driving device 213 is connected to the rotating shaft 211 through the rotation connector 212, so that when the rotation driving device 213 rotates, the rotating shaft 211 is driven to rotate, and thus the rotation of the rotating device 21 around the transmission device 22 is realized.
By arranging the rotation driving device 213, the rotation driving device 213 is arranged on the rotation connecting piece 212, and the rotation connecting piece 212 is arranged on the rotation shaft 211; under the action of the rotary driving device 213, the driving member 214 is engaged with the transmission member 222; the rotation driving device 213 rotates around the transmission member 222 by rotating; simultaneously, the rotating shaft 211 is driven to rotate; this achieves that the turning device 21 rotates about the transmission 222. The transmission piece 222 is fixed by arranging the transmission connecting fixing piece 221; by providing the transmission member 222, the rotating device 21 is rotated by the transmission member 222.
The pile cutting mechanism 3 device comprises a pile cutting driving device 32, a pile cutting extending device 33, a pile cutting support 31, a pile cutting connecting device 34 and a pile cutting part 35; in this embodiment, the pile cutting member 35 is a saw blade, the pile cutting driving device 32 is a hydraulic motor, and the pile cutting extension device 33 is a hydraulic cylinder. The pile cutting support 31 is connected with the rotating shaft 211, and the rotating shaft 211 drives the pile cutting support 31 to rotate; the pile cutting driving device 32, the pile cutting extending device 33, the pile cutting connecting device 34 and the pile cutting member 35 are all arranged in the pile cutting support 31; one end of the pile cutting connecting device 34 and one end of the pile cutting extending device 33 are respectively connected with the inner wall of the pile cutting support 31, one end of the pile cutting connecting device 34 rotates around the connecting position of the pile cutting connecting device 34 and the inner wall of the pile cutting support 31 on the cross section of the pile cutting support 31, the pile cutting piece 35 is installed at the other end of the pile cutting connecting device 34, the pile cutting driving device 32 is connected with the pile cutting piece 35, and the other end of the pile cutting extending device 33 is connected with the pile cutting connecting device 34; the pile cutting support 31 is provided with a pile cutting opening 311; the pile cutting extending device 33 drives the pile cutting member 35 to extend and retract the pile cutting support 31 through the pile cutting opening 311 along the moving direction of the pile cutting connecting device 34.
The pile cutting connection device 34 comprises a hinged movable part 341, a connecting part 342 and a connecting fixed part 343; the hinged movable piece 341 is hinged on the inner wall of the pile cutting support 31, the connecting piece 342 is connected with the hinged movable piece 341, and the connecting fixed piece 343 is connected with the connecting piece 342; the pile cutting member 35 is arranged at the lower end of the connecting and fixing member 343, and the pile cutting driving device 32 is arranged at the upper end of the connecting and fixing member 343; the pile cutting driving device 32 drives the pile cutting member 35 to rotate. The hinged movable piece 341 is hinged with the inner wall of the pile cutting support 31; the direction of movement of the hinged movable member 341 is thus specified after hinging; is connected with the hinged movable piece 341 through a connecting piece 342; so that the connecting member 342 moves in the moving direction of the hinge movable member 341; meanwhile, the connecting and fixing member 343 is provided with the pile cutting member 35 and is connected to the connecting member 342, so that the pile cutting member 35 also moves along the moving direction of the hinge movable member 341; the pile cutting driving device 32 is arranged to drive the pile cutting member 35 to rotate so as to cut the pile. The pile cutting extension device 33 is connected to a connection 342. The pile cutting extension device 33 is connected with the connecting piece 342, and the pile cutting extension device 33 drives the connecting piece 342 to move along the moving direction of the hinged movable piece 341.
The fixing device 4 is used for fixing the base 1; therefore, when the pile is cut, the machine base 1 cannot move; the pile cutting is more stable; the pile cutting mechanism 3 is driven to rotate by arranging a rotary structure, so that the pile cutting mechanism 3 can cut piles from different positions on the same horizontal line of the steel piles 5; thus, the use is convenient, and the pile cutting effect is good; the pile cutting extension device 33 is arranged to realize the movement of the position of the pile cutting part 35; when the pile needs to be cut, the pile cutting part 35 extends out of the pile cutting support 31; after pile cutting is finished, the pile cutting part 35 is retracted into the pile cutting support 31; thus, the occupied space is small; meanwhile, the pile cutting support 31 plays a role in protecting the pile cutting member 35; avoiding the pile cutting member 35 from being impacted and damaged when not in work; the pile cutting connecting device 34 is arranged, and the pile cutting extending device 33 drives the pile cutting member 35 to move along the moving direction of the pile cutting connecting device 34; thus, the moving direction of the pile cutting member 35 has directivity; the movement is more stable.
The invention comprises the following steps:
1) moving the pile cutting machine into the steel pile to be cut; fixing the steel piles; starting a pile cutting detection device and a rotation detection device;
2) the adjusting piece is far away from the outer wall of the machine base, the piece to be adjusted and the fixed supporting leg are both contacted with the inner wall surface of the steel pile, and the fixing device is stably fixed in the steel pile;
3) starting the pile cutting driving device, and driving the pile cutting part to rotate by the pile cutting driving device;
4) the pile cutting extension device drives the pile cutting part to extend out of the pile cutting support, and the pile cutting part cuts the steel pile; the pile cutting detection device detects the steel pile in real time, and step 5) is carried out according with the detection result;
5) the pile cutting extending device drives the pile cutting part to withdraw the pile cutting support, and the swing mechanism drives the pile cutting mechanism to rotate by a preset angle; judging whether pile cutting is finished or not, and repeating the step 4) if the pile cutting is not finished, until the swing mechanism drives the pile cutting mechanism to rotate 360 degrees, and the steel pile cutting is finished; carrying out step 6);
6) closing the pile cutting driving device, driving the pile cutting part to withdraw the pile cutting support by the pile cutting extending device, closing the pile cutting detection device and the rotation detection device by the adjusting part close to the outer wall of the machine base, and moving the pile cutting machine and the cut steel pile away.
The pile cutting method comprises the following steps:
the step 1) specifically comprises the following steps: the pile cutting machine is connected with a hanging beam of a crane, and the crane moves the pile cutting machine into the steel pile; the steel pile is fixed with a hanging beam of a crane;
the step 2) is specifically as follows: the piston rod of the adjusting piece is far away from the outer wall of the machine base, and the piston rod of the adjusting piece is in contact with the inner wall surface of the steel pile.
In the step 4), the coincidence detection result is as follows: the pile cutting member penetrates the steel pile. Detecting the pressure of the pile cutting driving device through the pile cutting detection device to judge whether the pile cutting part penetrates through the steel pile or not; the pressure value of a pile cutting driving device is recorded in advance when a pile cutting part does not cut the steel pile; recording the pressure value of the pile cutting driving device when the pile cutting member is cutting the steel pile; then comparing the two pressure values; if the numerical value is close to the preset value, judging that the pile cutting part penetrates through the steel pile; if the numerical value difference is larger, the pile cutting part is judged not to penetrate through the steel pile. In the step 5), a rotation detection device carries out real-time monitoring, when the rotation angle of the pile cutting mechanism reaches a preset angle, the rotation detection device sends a signal to the rotation mechanism, and the rotation mechanism stops rotating; in the present embodiment, the preset angle is 25 °.
The step 6) is specifically as follows: a piston rod of the adjusting piece is close to the outer wall of the machine base, and the piston rod of the adjusting piece is separated from the inner wall surface of the steel pile; and removing the pile cutting machine and the cut steel pile by a crane.
According to the pile cutting method, the pile cutting machine is moved into the steel pile; fixing the steel piles; therefore, the cut steel pile can be conveniently lifted away. Then starting the pile cutting detection device and the rotation detection device; the pile cutting detection device detects the steel pile in real time, and the rotation detection device detects the rotation angle of the pile cutting mechanism in real time; therefore, the operation can be carried out according to the detection result, and the control effect is good; then the adjusting piece is controlled to be far away from the outer wall of the machine base, and the adjusting piece and the fixed supporting leg are in contact fixation with the inner wall surface of the steel pile; the pile cutting machine is fixed inside the steel pile through the fixing device, so that pile cutting is facilitated; then, the pile cutting driving device drives the pile cutting part to rotate, and the pile cutting extending device drives the pile cutting part to extend out of the pile cutting support to cut the steel pile; the pile cutting part is contacted with the steel pile in a rotating state and is cut; therefore, the pile cutting part can be prevented from being contacted with the steel pile and then rotated, so that the cutting opening on the steel pile clamps the pile cutting part, and the pile cutting part is damaged; the pile cutting effect is good, and meanwhile, when the cutting position of the steel pile is detected to be in accordance with the cutting position, the condition that the pile cutting part penetrates through the current cutting position of the steel pile is met, the next step is carried out, and then the pile cutting mechanism rotates; therefore, the pile cutting mechanism can be ensured to complete 360-degree rotation; separating the cut steel pile from the lower end of the steel pile; meanwhile, the rotation angle of the pile cutting mechanism is controlled to be 25 degrees each time; when the pile cutting detection device detects that the current cutting position is penetrated by the pile cutting part, the pile cutting mechanism rotates; can avoid having between the different cutting positions on the piling bar not to cut the position like this, can avoid the turned angle undersize simultaneously and lead to work efficiency low. And then after the steel pile cutting is finished, the pile cutting machine and the cut steel pile are lifted away through a lifting beam of a crane.
Claims (5)
1. A pile cutting method of a pile cutting machine is characterized in that: the pile cutting machine comprises a machine base, a rotary mechanism, a pile cutting detection device and a rotary detection device; the outer wall surface of the machine base is provided with a fixing device, and the rotating device is arranged in the machine base; the pile cutting mechanism is positioned below the swing mechanism and connected with the swing mechanism;
the slewing mechanism comprises a slewing device and a transmission device; the rotating device passes through the transmission device and is arranged in the base; the transmission device comprises a transmission fixing piece and a transmission piece arranged on the transmission fixing piece; the rotating device comprises a rotating shaft, a rotating connecting piece and a rotating driving motor; the rotary connecting piece is connected with the rotating shaft; the rotary driving motor is fixed on the rotary connecting piece; the rotary driving motor is provided with a driving piece, and the driving piece is matched with the transmission piece;
the pile cutting mechanism device comprises a pile cutting support, a pile cutting driving device, a pile cutting extending device, a pile cutting connecting device and a pile cutting part, wherein the pile cutting driving device, the pile cutting extending device, the pile cutting connecting device and the pile cutting part are arranged in the pile cutting support; one end of the pile cutting connecting device and one end of the pile cutting extending device are respectively connected with the inner wall of the pile cutting support, one end of the pile cutting connecting device rotates on the cross section of the pile cutting support around the connecting position of the pile cutting connecting device and the inner wall of the pile cutting support, the pile cutting support is connected with the rotating device, and the rotating device drives the pile cutting support to rotate;
the pile cutting connecting device comprises a hinged moving part, a connecting piece and a fixing piece, wherein the hinged moving part is hinged with the inner wall of the pile cutting support; the connecting piece is connected with the hinged movable piece, and the fixed piece is connected with the connecting piece; the pile cutting part is arranged on the fixing part; the pile cutting driving device drives the pile cutting part to rotate; the pile cutting extending device is connected with the connecting piece; the pile cutting support is provided with a pile cutting opening; the pile cutting extending device drives the pile cutting part to penetrate through the pile cutting opening to extend out and retract the pile cutting support along the moving direction of the pile cutting connecting device;
the fixing device comprises a fixing supporting leg and an adjusting device; the adjusting device comprises an adjusting supporting foot and an adjusting piece; the adjusting piece is arranged on the adjusting arm brace;
the pile cutting method of the pile cutting machine comprises the following steps:
1) moving the pile cutting machine into the steel pile to be cut; fixing the steel piles; starting a pile cutting detection device and a rotation detection device;
2) the adjusting piece is far away from the outer wall of the machine base, the piece to be adjusted and the fixed supporting leg are both contacted with the inner wall surface of the steel pile, and the fixing device is stably fixed in the steel pile;
3) starting the pile cutting driving device, and driving the pile cutting part to rotate by the pile cutting driving device;
4) the pile cutting extension device drives the pile cutting part to extend out of the pile cutting support, and the pile cutting part cuts the steel pile; the pile cutting detection device detects the steel pile in real time, and step 5) is carried out according with the detection result;
5) the pile cutting extending device drives the pile cutting part to withdraw the pile cutting support, and the swing mechanism drives the pile cutting mechanism to rotate by a preset angle; judging whether pile cutting is finished or not, and repeating the step 4) if the pile cutting is not finished, until the swing mechanism drives the pile cutting mechanism to rotate 360 degrees, and the steel pile cutting is finished; carrying out step 6);
6) closing the pile cutting driving device, driving the pile cutting part to withdraw the pile cutting support by the pile cutting extending device, closing the pile cutting detection device and the rotation detection device by the adjusting part close to the outer wall of the machine base, and moving the pile cutting machine and the cut steel pile away.
2. The pile cutting method of the pile cutting machine according to claim 1, characterized in that: the coincidence detection result in the step 4) is as follows: the pile cutting member penetrates the steel pile.
3. The pile cutting method of the pile cutting machine according to claim 1, characterized in that: the step 5) specifically comprises the following steps: and the rotation detection device carries out real-time monitoring, and when the rotation angle of the pile cutting mechanism reaches a preset angle, the rotation detection device sends a signal to the rotation mechanism, and the rotation mechanism stops rotating.
4. A pile cutting method of a pile cutting machine according to claim 1 or 3, characterized in that: the preset angle is 25 °.
5. The pile cutting method of the pile cutting machine according to claim 1, characterized in that: the step 1) specifically comprises the following steps: the pile cutting machine is connected with a hanging beam of a crane, and the crane moves the pile cutting machine into the steel pile; the steel pile is fixed with a hanging beam of a crane; starting the pile cutting detection device and starting the rotation detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058404.8A CN112227367B (en) | 2020-09-30 | 2020-09-30 | Pile cutting method of pile cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| GB201413217D0 (en) * | 2014-07-25 | 2014-09-10 | Allspeeds Holdings Ltd | A subsea cutting tool and a blade therefor |
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| KR20160084821A (en) * | 2012-08-30 | 2016-07-14 | 바우어 머쉬넨 게엠베하 | Guide frame for guiding a cutting apparatus |
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| CN210308477U (en) * | 2018-08-31 | 2020-04-14 | 上海二十冶建设有限公司 | Automatic pile cutter |
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| JPH0220718A (en) * | 1988-07-08 | 1990-01-24 | Shimizu Corp | Steel pipe pile cutting device |
| JP2004084164A (en) * | 2002-08-22 | 2004-03-18 | Nippon Sharyo Seizo Kaisha Ltd | Removal method for existing pile and its device |
| CN201271953Y (en) * | 2008-05-16 | 2009-07-15 | 中冶天工建设有限公司 | Concrete pile cutting apparatus |
| KR20160084821A (en) * | 2012-08-30 | 2016-07-14 | 바우어 머쉬넨 게엠베하 | Guide frame for guiding a cutting apparatus |
| GB201413217D0 (en) * | 2014-07-25 | 2014-09-10 | Allspeeds Holdings Ltd | A subsea cutting tool and a blade therefor |
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| CN112227367A (en) | 2021-01-15 |
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