CN221052592U

CN221052592U - Tubular pile cutting machine

Info

Publication number: CN221052592U
Application number: CN202322566589.9U
Authority: CN
Inventors: 胡丙炎; 张涛
Original assignee: Dezhou Hailian Hydraulic Technology Co ltd
Current assignee: Dezhou Hailian Hydraulic Technology Co ltd
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-05-31
Anticipated expiration: 2033-09-21

Abstract

The utility model provides a tubular pile cutting machine, which comprises: a main body and a pile cutting device; the main body is sleeved on the outer side of the tubular pile and is integrally arranged in a cylindrical shape; the pile cutting device is rotatably arranged at the bottom of the main body; the main body is provided with a clamping assembly for clamping the tubular pile; the main body further comprises a rotary supporting component which is used for driving the pile cutting device to rotate; and the pile cutting device is provided with a saw disc for cutting off the pipe pile. The tubular pile cutting machine is used as integral equipment, has compact structure, does not need to assemble equipment on site, is installed once and used for multiple times, greatly improves the pile cutting efficiency and saves the production cost; and the power line is not needed on site, so that the potential safety hazard that the power line is dragged to intercept the pile on site by manual pile interception is eliminated, and the safety of pile interception is improved. Meanwhile, the PLC terminal control system is arranged, so that automatic operation of equipment operation, monitoring and adjustment is realized, and the working efficiency of the equipment is improved.

Description

Tubular pile cutting machine

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a tubular pile cutting machine.

Background

The traditional tubular pile cutting has no special equipment, and takes hand-push type saw disc pile cutting and anchor ear pile cutting as examples, which are all manually pile cutting, and a plurality of persons are required to cooperate for operation; the manual installation and control are needed, a high-power mobile power supply is needed, and the power line is towed to walk during working, so that the working efficiency is low and certain potential safety hazards exist. Meanwhile, most pile cutting equipment is a piece of parts, the pile cutting equipment is required to be assembled and used on site, and the pile cutting equipment is disassembled after being used and then used for next pile cutting, so that time and labor are wasted. When the pipe pile is cut off, a crane is required to move the cut pipe pile to the empty space, so that the secondary cost is increased intangibly.

Disclosure of utility model

The utility model aims to provide a tubular pile cutting machine, which aims to solve at least one technical problem existing in the prior art.

In order to solve the technical problems, the utility model provides a tubular pile cutting machine, which is characterized by comprising the following components: a main body and a pile cutting device;

The pile cutting device is rotatably arranged at the bottom of the main body;

the main body is sleeved on the outer side of the tubular pile and is integrally arranged in a cylindrical shape;

the main body is provided with a clamping assembly for clamping the tubular pile;

The main body further comprises a rotary supporting component which is used for driving the pile cutting device to rotate;

And the pile cutting device is provided with a saw disc for cutting off the pipe pile.

Further, the clamping components are arranged in a plurality, the clamping components are arranged at the middle lower part of the outer side wall of the main body in a staggered manner in an upper layer and a lower layer, and each layer of the clamping components are circumferentially spaced along the outer side wall of the main body and are uniformly distributed.

The clamping assemblies arranged in a layered and staggered mode greatly improve the clamping force of the tubular pile, so that the stress of the tubular pile is consistent, and the potential safety hazard that the broken pile falls when the broken pile is lifted due to uneven stress is avoided; simultaneously, the clamping of different tubular pile heights can be satisfied.

Further, the clamping assembly comprises a first telescopic mechanism and an arc-shaped clamping plate, wherein the first telescopic mechanism is used for driving the arc-shaped clamping plate to approach and clamp or separate from and loosen the tubular pile;

The telescopic end of the first telescopic mechanism penetrates through the main body cylinder wall and then stretches into the main body cylinder, and is fixedly connected with the arc-shaped clamping plate;

the fixed end of the first telescopic mechanism is provided with a connecting flange; the main body outer side wall is correspondingly provided with a butt flange, and the butt flange is fixedly connected with the connecting flange and used for installing and fastening the clamping assembly.

The first telescopic mechanism is a telescopic cylinder or a telescopic cylinder.

Specifically, the arc clamping plates clamp the tubular pile when the telescopic end of the first telescopic mechanism stretches out, and the arc clamping plates loosen the clamped tubular pile when the telescopic end withdraws.

The arrangement of the arc clamping plates can increase the joint surface of the clamping assembly and the tubular pile wall, enlarge the clamping surface and improve the clamping force.

Further, a guide rod in the horizontal direction is arranged on the arc-shaped clamping plate and is used for guiding when the arc-shaped clamping plate is close to or far from the tubular pile;

the guide rod penetrates through the pipe wall of the main body and extends out of the outer side of the main body.

Further, the rotary support assembly is arranged at the bottom of the main body and comprises an inner disc and an outer disc;

The inner disc is fixedly connected with the main body;

The outer disc is rotatably sleeved outside the inner disc, and outer teeth are formed in the outer circumference of the outer disc.

Further, the outer teeth of the outer disc are meshed with an output gear of a first speed reducer, and the first speed reducer is fixedly connected with the main body;

And a main shaft of the first speed reducer is connected with an output shaft of the cycloid motor.

The cycloid motor and the first speed reducer drive the outer disc to rotate, and the rotation speed of the outer disc can be adjusted by controlling the flow of the cycloid motor.

Preferably, the pile cutting device comprises a pile cutting cylinder, wherein the pile cutting cylinder is coaxially arranged with the main body and fixedly connected with the outer disc.

Further, the pile cutting device further comprises a second telescopic mechanism, wherein the fixed end of the second telescopic mechanism is hinged with the outer side wall of the pile cutting cylinder, and the telescopic end of the second telescopic mechanism is hinged with the saw disc movable arm and used for driving the saw disc movable arm to approach or depart from the pipe pile.

Specifically, when the telescopic end of the second telescopic mechanism contracts, the saw disc movable arm approaches the tubular pile, and when the telescopic end of the second telescopic mechanism stretches out, the saw disc movable arm is far away from the tubular pile.

The second telescopic mechanism is a telescopic cylinder or a telescopic cylinder.

Further, one end of the saw disc movable arm is hinged with the outer side wall of the pile cutting cylinder, and the other end of the saw disc movable arm is fixedly connected with the second speed reducer box;

And a limit switch is arranged on the outer side wall of the pile cutting cylinder and used for limiting the saw disc movable arm.

Limiting switch's setting limits the position of saw disc movable arm, avoids forming striking harm when out of control

Further, a driving wheel and a driven wheel are arranged in the second speed reducer, and the driving wheel and the driven wheel are connected through a synchronous belt;

An output shaft of a driving motor is coaxially sleeved in the driving wheel, and the driving motor is fixedly arranged outside the second speed reducer box;

and a saw disc shaft is coaxially sleeved in the driven wheel.

Further, a saw disc is sleeved on the saw disc shaft and is spaced from the driven wheel, and saw disc clamping plates are fixedly arranged on two sides of the saw disc;

The outside of saw disc is provided with saw disc fender bracket.

The saw disc clamping plate increases the rigidity of the center of the saw disc, and prolongs the service life of the saw disc; the saw disc protection frame can protect the saw disc from being damaged by other external factors during working and also can avoid the saw disc from damaging staff during working.

Further, the outer side wall of the pile cutting cylinder is detachably provided with a plurality of supporting feet which are used for supporting the device after the pile cutting cylinder is moved to the ground.

Further, the second telescopic mechanism, the saw disc movable arm, the second speed reducer, the driving motor and the saw disc serve as a working unit, and a plurality of working units can be arranged according to actual needs.

Preferably, the damping device is arranged on the top of the main body;

the upper part of the outer side wall of the main body is uniformly provided with a plurality of stand columns at intervals along the circumferential direction, and the tops of the stand columns are provided with connecting frames for the fixed connection of the damping device.

The stand columns arranged at intervals enlarge the working field of workers and improve the installation efficiency of the tubular pile cutting device.

Further, the damping device comprises a damping frame, a main damping and a side damping;

The damping frame is fixedly connected with external hoisting equipment through an adjustable positioning pin shaft;

One end of the main damper is connected with the damping frame through a pin shaft, and the other end of the main damper is connected with the connecting frame through a pin shaft;

The two ends of the side damper are respectively hinged with an upper support and a lower support, the upper support is connected with the connecting frame and the damper frame through pin shafts, and the lower support is fixedly connected with the upright post.

The damping device reduces the swing amplitude of the main body during installation through viscous damping, thereby realizing quick alignment Ji Guanzhuang; the adjustable positioning pin shaft realizes the connection between the damping device and the hoisting equipment of different models.

Further, a joint bearing is arranged between the pin shaft and the shaft hole of the damping frame.

Further, the pile cutting device further comprises a PLC terminal control system, wherein the PLC terminal control system is used for controlling hydraulic flow in a hydraulic system, and further controlling the clamping force of the clamping assembly, the cutting speed of the saw disc and the rotation speed of the pile cutting device.

The automatic control, monitoring and adjustment of the tubular pile cutting machine are realized by the arrangement of the PLC control system, and the working efficiency of the equipment is greatly improved.

Specifically, after the telescopic end of the first telescopic mechanism stretches out to drive the arc clamping plates to clamp the tubular pile, the driving motor is started to drive the driving wheel and the driven wheel in the second speed reducer to rotate, and then the saw disc is driven to rotate; simultaneously, the telescopic end of the second telescopic mechanism is contracted inwards to drive the saw disc movable arm and the saw disc to approach the tubular pile to start pile cutting; when the saw disc cuts the tubular pile completely, the telescopic end of the second telescopic mechanism extends outwards, and the saw disc is far away from the tubular pile; then the cycloid motor is started to drive the outer disc and the pile cutting device to rotate for a certain angle, the telescopic end of the second telescopic mechanism is contracted inwards again, and the pile cutting operation is carried out on the saw disc; when the pipe pile is completely cut off, the cycloid motor stops working, and the telescopic end of the second telescopic mechanism stretches out outwards to drive the saw disc to leave the pipe pile outwards; and after the pile cutting machine and the broken pile are lifted by the excavator to the ground to be placed stably, the telescopic end of the first telescopic mechanism is retracted, and the arc clamping plates loosen the broken pile, so that one-cycle pile cutting operation is realized.

By adopting the technical scheme, the utility model has the following beneficial effects:

the tubular pile cutting machine provided by the utility model has the following advantages:

1. The tubular pile cutting machine is used as integral equipment, has a compact structure, occupies small space on site, does not need to assemble equipment on site, is installed once and used for multiple times, greatly improves the pile cutting efficiency and saves the production cost; as the matched accessory of the hoisting equipment, a power line is not needed on site, the potential safety hazard that the power line is dragged to intercept the pile on site by manual pile interception is eliminated, and the safety of pile interception is improved.

And 2. The PLC terminal control system is arranged, so that the automatic operation of equipment operation, monitoring and adjustment is realized, and the working efficiency of the equipment is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the utility model and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an assembled perspective view of a pile cutter according to an embodiment of the present utility model;

FIG. 2 is an assembled perspective view of the clamping assembly of the apparatus of FIG. 1;

FIG. 3 is an enlarged view of the device of FIG. 1 at A;

FIG. 4 is an assembled perspective view of the slewing bearing and clamping assemblies of the apparatus of FIG. 1;

FIG. 5 is an assembled perspective view of the pile cutting apparatus of the apparatus of FIG. 1;

FIG. 6 is an assembled perspective view of a second speed reducer of the apparatus of FIG. 1;

fig. 7 is an assembled perspective view of the main, side damping and body of the device of fig. 1.

Reference numerals:

100-a main body; 101-butt flange; 102-stand columns; 103-a connection rack; 110-a clamping assembly; 111-a first telescopic cylinder; 112-connecting flanges; 113-arc clamping plates; 114-a guide bar; 120-a slewing bearing assembly; 121-an inner disk; 122-outer disc; 123-a first speed reducer; 124-cycloid motor; 200-pile cutting device; 201-pile cutting cylinder; 202-a second telescopic cylinder; 203-saw disc movable arm; 204-saw disc; 205-saw disc clamping plate; 206-a saw disc protection frame; 207-driving a motor; 208-supporting legs; 210-a second speed reducer; 211-a driving wheel; 212-driven wheel; 213-synchronous belt; 214-sawing a disc shaft; 300-damping means; 301-a damping frame; 302-primary damping; 303-side damping; 304-a pin shaft; 305-an adjustable positioning pin; 306-upper support; 307-lower support; 400-excavator forearm; 500-tubular pile.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model is further illustrated with reference to specific embodiments.

As shown in fig. 1, the pile cutting machine provided in this embodiment is characterized by including: a main body 100 and a pile cutting device 200;

the pile cutting device 200 is rotatably provided at the bottom of the main body 100;

The main body 100 is sleeved outside the tubular pile 500 and is integrally arranged in a cylinder shape;

The body 100 is provided with a clamping assembly 110 for clamping the pipe pile 500;

The main body 100 further comprises a rotary support assembly 120 for driving the pile cutting device 200 to rotate;

The pile cutting device 200 is provided with a saw blade 204 for cutting the pipe pile 500.

The clamping assemblies 110 are provided with a plurality of layers, and are arranged at the middle lower part of the outer side wall of the main body 100 in a staggered manner, and each layer of clamping assemblies 110 are circumferentially spaced along the outer side wall of the main body 100 and uniformly distributed.

In this embodiment, six clamping assemblies 110 are staggered along the upper and lower layers of the outer sidewall of the main body 100, and three clamping assemblies are spaced apart and uniformly arranged.

The clamping assemblies 110 which are arranged in a layered and staggered mode greatly improve the clamping force on the tubular pile 500, so that the stress of the tubular pile 500 is consistent, and the potential safety hazard that broken piles fall off when the broken piles are lifted due to uneven stress is avoided; meanwhile, the clamping of different tubular piles 500 can be met.

As shown in fig. 2-3, the clamping assembly 110 includes a first telescopic mechanism and an arc-shaped clamping plate 113, the first telescopic mechanism being used for driving the arc-shaped clamping plate 113 to approach and clamp or separate from and loosen the pipe pile 500;

the telescopic end of the first telescopic mechanism penetrates through the cylinder wall of the main body 100 and then stretches into the cylinder body of the main body 100 to be fixedly connected with the arc clamping plate 113;

The fixed end of the first telescopic mechanism is provided with a connecting flange 112; the outer side wall of the main body 100 is correspondingly provided with a butt flange 101, and the butt flange 101 is fixedly connected with a connecting flange 112 for mounting and fastening the clamping assembly 110.

In this embodiment, the first telescopic mechanism is a first telescopic cylinder 111

Specifically, when the telescopic end of the first telescopic cylinder 111 extends, the arc-shaped clamping plates 113 clamp the tubular pile 500, and when the telescopic end retracts, the arc-shaped clamping plates 113 release the clamped tubular pile 500.

The arrangement of the arc clamping plates 113 can increase the joint surface between the clamping assembly 110 and the wall of the tubular pile 500, enlarge the clamping surface and improve the clamping force.

The arc clamping plates 113 are provided with guide rods 114 in the horizontal direction, and are used for guiding when the arc clamping plates 113 are close to or far from the tubular pile 500;

The guide rod 114 extends outside the main body 100 through the wall of the main body 100.

In this embodiment, two guide rods 114 are symmetrically disposed on the arc clamping plate 113 for guiding the arc clamping plate 113.

As shown in fig. 4, the swing support assembly 120 is disposed at the bottom of the main body 100, and includes an inner disc 121 and an outer disc 122;

the inner disc 121 is fixedly connected with the main body 100;

The outer disc 122 is rotatably sleeved outside the inner disc 121, and the outer circumference of the outer disc 122 is provided with external teeth.

The external teeth of the outer disc 122 are meshed with the output gear of the first speed reducer 123, and the first speed reducer 123 is fixedly connected with the main body 100;

The main shaft of the first speed reducer 123 is connected to the output shaft of the gerotor motor 124.

The cycloid motor 124 and the first speed reducer 123 drive the outer disc 122 to rotate, and the rotation speed of the outer disc 122 can be adjusted by controlling the flow of the cycloid motor 124.

As shown in fig. 5, the pile cutting device 200 includes a pile cutting cylinder 201, and the pile cutting cylinder 201 is coaxially disposed with the main body 100 and fixedly connected with the outer disc 122.

The pile cutting device 200 further comprises a second telescopic mechanism, wherein the fixed end of the second telescopic mechanism is hinged with the outer side wall of the pile cutting cylinder 201, and the telescopic end of the second telescopic mechanism is hinged with the saw disc movable arm 203 and is used for driving the saw disc movable arm 203 to approach or be far away from the pipe pile 500.

In this embodiment, the second telescopic mechanism is a second telescopic cylinder 202.

Specifically, when the telescopic end of the second telescopic cylinder 202 is contracted, the saw disc movable arm 203 approaches the pipe pile 500, and when the telescopic end of the second telescopic cylinder 202 is extended, the saw disc movable arm 203 is far away from the pipe pile 500.

One end of the saw disc movable arm 203 is hinged with the outer side wall of the pile cutting cylinder 201, and the other end is fixedly connected with the box body of the second speed reducer 210;

The outer sidewall of the pile cutting cylinder 201 is provided with a limit switch (not shown) for limiting the saw disc movable arm 203.

The position of the saw disc movable arm 203 is limited by the arrangement of a limit switch (not shown), so that impact damage caused by out-of-control is avoided

As shown in fig. 6, a driving wheel 211 and a driven wheel 212 are arranged in the second speed reducer 210, and the driving wheel 211 and the driven wheel 212 are connected through a synchronous belt 213;

An output shaft of a driving motor 207 is coaxially sleeved in the driving wheel 211, and the driving motor 207 is fixedly arranged outside the box body of the second speed reducer 210;

a saw disc shaft 214 is coaxially sleeved in the driven wheel 212.

In this embodiment, the driving motor 207 is a high-speed driving motor 207, and the rotational torque is increased by the deceleration of the second speed reducer 210, so that the cutting force of the saw blade 204 is increased.

A saw disc 204 is sleeved on the saw disc shaft 214 and is spaced from the driven wheel 212, and saw disc clamping plates 205 are fixedly arranged on two sides of the saw disc 204;

the outside of the saw disc 204 is provided with a saw disc guard 206.

The saw disc clamping plate 205 increases the rigidity of the center of the saw disc 204, and prolongs the service life of the saw disc 204; the saw disc protection frame 206 can protect the saw disc 204 from other external factors during operation and also can prevent the saw disc 204 from injuring staff during operation.

The outer side wall of the pile cutting drum 201 is detachably provided with a plurality of support legs 208 for supporting the device after the pile cutting is moved to the ground.

The second telescopic mechanism, the saw disc movable arm 203, the second speed reducer 210, the driving motor 207 and the saw disc 204 serve as a working unit, and a plurality of working units can be arranged according to actual needs.

In this embodiment, three working units and three legs 208 are provided at an even interval along the outer circumference of the stub shaft 201.

In addition, the damping device 300 is further included, and the damping device 300 is disposed on the top of the main body 100;

The upper part of the outer side wall of the main body 100 is uniformly provided with a plurality of columns 102 at intervals along the circumferential direction, and the tops of the columns 102 are provided with connecting frames 103 for the fixed connection of the damping device 300.

In this embodiment, the column 102 is provided with eight columns.

The stand columns 102 arranged at intervals enlarge the working field of workers and improve the installation efficiency of the tubular pile 500 pile cutting device 200.

As shown in fig. 7, the damping device 300 includes a damping mount 301, a main damping 302, and a side damping 303;

the damping frame 301 is fixedly connected with external hoisting equipment through an adjustable positioning pin shaft 305;

One end of the main damper 302 is connected with the damper rack 301 through a pin shaft 304, and the other end is connected with the connecting rack 103 through a pin shaft 304;

the two ends of the side damper 303 are respectively hinged with an upper support 306 and a lower support 307, the upper support 306 is connected with the connecting frame 103 and the damper 301 through a pin shaft 304, and the lower support 307 is fixedly connected with the upright post 102.

In this embodiment, the external hoisting device is an excavator, and the damping frame 301 is fixedly connected with the forearm of the excavator.

The damping device 300 reduces the swing amplitude of the main body 100 during installation by viscous damping, thereby realizing rapid alignment of the pipe piles 500; the adjustable positioning pin 305 enables the connection between the damping device 300 and different types of lifting equipment.

Further, a knuckle bearing is provided between the pin shaft 304 and the shaft hole of the damper rack 301.

Further, the hydraulic pile driver device further comprises a PLC terminal control system for controlling the hydraulic flow in the hydraulic system, so as to control the clamping force of the clamping assembly 110, the cutting speed of the saw disc 204, the rotation speed of the pile driver device 200 and the like.

The automatic control, monitoring and adjustment of the tubular pile 500 pile cutting machine are realized by the arrangement of the PLC control system, and the working efficiency of the equipment is greatly improved.

Specifically, when the telescopic end of the first telescopic cylinder 111 extends to drive the arc clamping plate 113 to clamp the tubular pile 500, the driving motor 207 is started to drive the driving wheel 211 and the driven wheel 212 in the second speed reducer 210 to rotate, so as to drive the saw disc 204 to rotate; simultaneously, the telescopic end of the second telescopic cylinder 202 is contracted inwards to drive the saw disc movable arm 203 and the saw disc 204 to approach the tubular pile 500 to start pile cutting; when the saw disc 204 cuts the tubular pile 500 completely, the telescopic end of the second telescopic mechanism extends outwards, and the saw disc 204 is far away from the tubular pile 500; then the cycloid motor 124 is started to drive the outer disc 122 and the pile cutting device 200 to rotate for a certain angle, the telescopic end of the second telescopic mechanism is contracted inwards again, and the saw disc 204 performs pile cutting operation again; when the pipe pile 500 is completely cut off, the cycloid motor 124 stops working, and the telescopic end of the second telescopic mechanism extends outwards to drive the saw disc 204 to leave the pipe pile 500 outwards; after the support leg 208 is installed, the excavator lifts the tubular pile 500 pile cutter and the broken pile to the ground to be placed stably, the telescopic end of the first telescopic cylinder 111 is retracted, and the arc-shaped clamping plate 113 loosens the broken pile, so that the tubular pile 500 pile cutting operation of one cycle is realized.

1. The tubular pile cutting machine is used as integral equipment, equipment is not required to be assembled on site, the tubular pile cutting machine is installed once and used for multiple times, the pile cutting efficiency is greatly improved, and the production cost is saved; as the matched accessory of the hoisting equipment, a power line is not needed on site, the potential safety hazard that the power line is dragged to intercept the pile on site by manual pile interception is eliminated, and the safety of pile interception is improved.

And 2. The PLC terminal control system is arranged, so that the automatic control of equipment operation, monitoring and adjustment is realized, and the working efficiency of the equipment is improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A pipe pile cutter, comprising: a main body and a pile cutting device;

The pile cutting device is rotatably arranged at the bottom of the main body;

2. A pipe pile cutter according to claim 1, wherein the clamping assemblies are arranged in a plurality of layers, the upper layers and the lower layers are staggered at the middle lower part of the outer side wall of the main body, and each layer of the clamping assemblies are circumferentially spaced and uniformly distributed along the outer side wall of the main body.

3. A pipe pile cutter according to claim 1, wherein the clamping assembly comprises a first telescopic mechanism and an arc-shaped clamping plate, the first telescopic mechanism being used for driving the arc-shaped clamping plate to approach and clamp or depart from and loosen the pipe pile;

4. A pipe pile cutter according to claim 3, wherein the arc clamping plates are provided with a guide rod in the horizontal direction for guiding when the arc clamping plates approach or depart from the pipe pile;

5. A pipe pile cutter according to claim 1, wherein a swivel support assembly is provided at the bottom of the body, comprising an inner disc and an outer disc;

The inner disc is fixedly connected with the main body;

6. The pipe pile cutter of claim 5, wherein the outer teeth of the outer disc are meshed with an output gear of a first speed reducer, and the first speed reducer is fixedly connected with the main body;

And the main shaft of the first speed reducer is coaxially connected with the output shaft of the cycloid motor.

7. A pipe pile cutter as defined in claim 6, wherein the pile cutter comprises a pile cutter barrel coaxially disposed with the body and fixedly connected to the outer disc.

8. A pipe pile cutter according to claim 7, wherein the pile cutter further comprises a second telescopic mechanism, the fixed end of the second telescopic mechanism is hinged to the outer side wall of the pile cutting cylinder, and the telescopic end of the second telescopic mechanism is hinged to the saw disc movable arm and is used for driving the saw disc movable arm to approach or separate from the pipe pile.

9. A tubular pile cutter according to claim 8, wherein one end of the saw disc movable arm is hinged with the outer side wall of the pile cutting cylinder, and the other end of the saw disc movable arm is fixedly connected with the second speed reducer box;

10. A pipe pile cutter according to claim 9, wherein a driving wheel and a driven wheel are arranged in the second speed reducer, and the driving wheel and the driven wheel are connected through a synchronous belt;

and a saw disc shaft is coaxially sleeved in the driven wheel.

11. A tubular pile cutter according to claim 10, wherein a saw disc is sleeved on the saw disc shaft and spaced from the driven wheel, and saw disc clamping plates are fixedly arranged on two sides of the saw disc;

The outside of saw disc is provided with saw disc fender bracket.

12. A pipe pile cutter as claimed in claim 7, wherein the outer side wall of the pile cutter is detachably provided with a plurality of legs for supporting the device after the broken pile is moved to the ground.

13. A pipe pile cutter according to claim 10, wherein the second telescopic mechanism, the saw disc movable arm, the second speed reducer, the driving motor and the saw disc are used as a working unit, and a plurality of working units can be arranged according to actual needs.

14. A pipe pile cutter as defined in claim 1, further comprising a damping device disposed on top of the body;

The upper part of the outer side wall of the main body is uniformly provided with a plurality of stand columns at intervals along the circumferential direction, and the tops of the stand columns are provided with connecting parts for the fixed connection of the damping device.

15. A pipe pile cutter as defined in claim 14, wherein the damping means comprises a damping frame, a primary damping and a side damping;

One end of the main damper is connected with the damping frame through a pin shaft, and the other end of the main damper is connected with the connecting part through a pin shaft;

The two ends of the side damper are respectively hinged with an upper support and a lower support, the upper support is connected with the connecting part and the damper frame through a pin shaft, and the lower support is fixedly connected with the upright post.

16. A pipe pile cutter as defined in claim 15, wherein a knuckle bearing is provided between the pin and the shaft bore of the damping mount.

17. A pipe pile cutter according to claim 1, further comprising a PLC terminal control system for controlling hydraulic flow in a hydraulic system to thereby control the clamping force of the clamping assembly, the cutting speed of the saw disc and the rotational speed of the pile cutter.