Pile cutting device and using method

By designing a pile cutting device with spray dust reduction unit, the problem of dust pollution in CFG pile construction is solved, and environmental protection and construction quality are improved.

CN120443647APending Publication Date: 2025-08-08MCC TIANGONG GROUP TIANJIN CO LTD
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Patent Information

Application Number
CN202510727304.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2025-08-08

AI Technical Summary

Technical Problem

At the CFG pile construction site, a large amount of dust is generated when manually using machine piles to cut off, resulting in environmental pollution and health hazards.

Method used

A pile cutting device is designed, including a movable vehicle body, a driving part and an actuator, equipped with a spray dust reduction unit, spraying liquid dust reduction through a spray head, and adjusting the height and spray position of the cutting assembly through an adjustment mechanism to adapt to different construction environments.

Benefits of technology

Effectively reduce dust pollution, protect staff health, improve construction quality and device service life, and is suitable for a diverse construction environment.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention provides a pile cutting device and a using method. The pile cutting device comprises a vehicle body. The pile cutting unit comprises a driving part and an executing part, the executing part comprises an adjusting mechanism connected with the vehicle body, a supporting body connected with the output end of the adjusting mechanism, a rotating shaft rotationally connected with the supporting body and a cutting assembly connected with the rotating shaft, and the driving part is connected with the supporting body to control the rotating shaft to move; the dust falling unit comprises a liquid storage container, a pumping part and a spraying part, the liquid storage container is connected with the vehicle body, the spraying part comprises a spraying adjusting mechanism and a spraying head, the spraying head is connected with the supporting main body through the spraying adjusting mechanism, and the pumping part can convey liquid in the liquid storage container to the spraying head. According to the using method of the pile cutting device, the height of the cutting assembly can be adjusted so that the pile can be moved or accurately cut, spraying is conducted through the spray head to reduce dust, and the position of the spray head can be adjusted. The pile cutting device has the beneficial effects that dust falling can be conducted during pile cutting, the pile cutting quality is guaranteed, and the service life of the pile cutting device is prolonged.
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Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a pile cutting device and a use method thereof. Background Art

[0002] In existing technology, CFG piles are cement fly ash gravel piles. They are variable-strength piles made by mixing gravel, stone chips, sand, fly ash, cement, and water using various pile-forming machines. They offer advantages such as high foundation bearing capacity, minimal settlement deformation, good workability, rapid stability, simple and easy construction, and low project costs. CFG piles are widely applicable and can be used in foundations such as sandy soil, silt, clay, silty soil, and miscellaneous fill. Due to the wide range of CFG pile applications and the diverse construction environments, manual pile breaking using machines remains the most common method of cutting CFG piles on construction sites. This process generates a large amount of dust, leading to serious dust pollution on-site, endangering the health of workers and causing environmental pollution. Given the wide range of CFG pile applications and the diverse construction environments, manual pile breaking using machines is often used, but this process generates a large amount of dust, endangering the health of workers and polluting the environment. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a pile cutting device and a method of use, which are particularly suitable for reducing dust pollution when cutting CFG piles.

[0004] The technical solution adopted by the present invention is: a pile cutting device, including a mobile unit, which includes a movable vehicle body; the pile cutting unit, which includes a driving part and an executing part, the executing part includes an adjusting mechanism, a supporting body, a rotating shaft and a cutting assembly, the adjusting mechanism is connected to the vehicle body, the output end of the adjusting mechanism is connected to the supporting body, the cutting assembly is rotatably connected to the supporting body through the rotating shaft, and the driving part is connected to the supporting body to control the movement of the rotating shaft; the dust reduction unit, which includes a liquid storage container, a pumping part and a spraying part, the liquid storage container is connected to the vehicle body, the spraying part includes a spray adjusting mechanism and a nozzle, the nozzle is connected to the supporting body through the spray adjusting mechanism, the spray adjusting mechanism can control the movement of the nozzle, and the pumping part is used to transport the liquid in the liquid storage container to the nozzle.

[0005] Furthermore, the spray adjustment mechanism includes a connecting body, a first sealing ring and a power assembly. The connecting body is connected to the supporting body, the rotating shaft is passed through the connecting body, an annular water storage chamber is provided in the connecting body, and the pumping part can transport the liquid in the liquid storage container to the annular water storage chamber. The first sealing ring is slidingly connected to the bottom of the annular water storage chamber. The power assembly is connected to the connecting body to control the circumferential rotation of the first sealing ring along the rotating shaft. The nozzle is connected to the first sealing ring and the input end of the nozzle is connected to the annular water storage chamber.

[0006] Furthermore, the spray adjustment mechanism also includes a rotating ring assembly, which is connected to the first sealing ring. The power assembly includes a first motor and a driving gear. The rotating ring assembly is configured with external teeth that can cooperate with the driving gear. The first motor is connected to the connecting body, and the output end of the first motor is connected to the driving gear to control the movement of the rotating ring assembly. The spray head is connected to the rotating ring assembly.

[0007] Furthermore, the spray adjustment mechanism also includes an adjustment body, a second sealing ring and a connecting pipe. The adjustment body is connected to the connecting body. The rotating shaft passes through the connecting body and the adjustment body in sequence and is connected to the cutting assembly. The rotating ring assembly and the driving gear are arranged in the adjustment body. The nozzle is slidingly connected to the adjustment body through the second sealing ring. The connecting pipe is inserted into the first sealing ring and the rotating ring assembly. The input end of the nozzle is connected to the annular water storage chamber through the connecting pipe.

[0008] Furthermore, the driving part includes a second motor, a first transmission wheel, a second transmission wheel and a transmission member. The second motor is connected to the supporting body, the output end of the second motor is connected to the first transmission wheel, the first transmission wheel is connected to the second transmission wheel through the transmission member, and the rotating shaft is connected to the supporting body through the second transmission wheel.

[0009] Furthermore, the supporting body includes a fixed box, a transmission box and a mounting frame, the adjusting mechanism includes two hydraulic rods respectively connected to the vehicle body, the fixed box is arranged between the two hydraulic rods and the telescopic end of the hydraulic rod is connected to the fixed box, the transmission box is connected to the fixed box, the mounting frame is connected to the transmission box, the second motor is connected to the fixed box, the first transmission wheel is arranged in the transmission box, and the second transmission wheel and the spray adjustment mechanism are respectively connected to the mounting frame.

[0010] Furthermore, the pumping part includes a pump and a transmission pipe, and the liquid storage container, the pump and the transmission pipe are connected in sequence to communicate with the nozzle.

[0011] Furthermore, the present invention also provides a method for using the pile cutting device, comprising the following steps:

[0012] Move the vehicle body to the working position, adjust the cutting assembly to the preset height through the adjustment mechanism, start the driving part to rotate the rotating shaft, and cut the pile through the cutting assembly; use the pumping part to transport the liquid in the liquid storage container to the nozzle to reduce dust, and the spray adjustment mechanism can control the movement of the nozzle to adjust the spraying position.

[0013] The advantages and positive effects of the present invention are as follows: due to the adoption of the above technical solution, dust generated by cutting CFG piles can be reduced, the health of workers can be protected, and environmental pollution can be reduced; the height of the cutting assembly can be adjusted by the adjustment mechanism to ensure the quality of pile cutting, and the pile cutting device can be easily moved to ensure that it is suitable for various CFG pile cutting environments, and the cutting assembly can be prevented from being damaged by collision with the ground during movement; it has the advantages of easy operation, can reduce environmental pollution, can be applied to various construction environments, and can ensure that the service life of the pile cutting device is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of an embodiment of the present invention;

[0015] Figure 2 It is a schematic diagram of the external structure of an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the connection relationship between the fixed box and the hydraulic rod in one embodiment of the present invention;

[0017] Figure 4 yes Figure 1 A magnified schematic diagram of point A;

[0018] In the picture:

[0019] 1. Car body 2. Fixed box 3. Second motor

[0020] 4. Transmission box 5. Hydraulic rod 6. Fixed block

[0021] 7. Mounting frame 8. Rotating shaft 9. First transmission wheel

[0022] 10. Connecting body 11. Adjusting body 12. Second sealing ring

[0023] 13. Rotating ring body 14. Gear ring 15. Annular water storage chamber

[0024] 16. First sealing ring 17. Connecting pipe 18. Nozzle

[0025] 19. First motor 20. Drive gear 21. Transmission tube

[0026] 22. Pump 23. Liquid replenishing valve 24. Liquid storage container

[0027] 25. Cutting assembly 26. Second transmission wheel DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in conjunction with the accompanying drawings. The described embodiments are only a part of the embodiments of the invention, rather than all the embodiments.

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0030] The embodiments described below with reference to the accompanying drawings are illustrative and intended only to explain the present invention and are not to be construed as limiting the present invention. In describing the present invention, it should be understood that terms such as "install," "connect," and "fix" are to be understood broadly, encompassing both direct and indirect connection, installation, or fixation, and the present invention is not intended to limit these terms.

[0031] like Figures 1 to 4 As shown, a schematic diagram of an embodiment of a pile cutting device of the present invention includes a moving unit, which includes a vehicle body 1, and the vehicle body 1 is provided with moving wheels for movement; the pile cutting unit, which includes a driving part and an executing part, the executing part includes an adjusting mechanism, a supporting body, a rotating shaft 8 and a cutting assembly 25, the adjusting mechanism is connected to the vehicle body 1, the output end of the adjusting mechanism is connected to the supporting body, the cutting assembly 25 is rotatably connected to the supporting body through the rotating shaft 8, the driving part is connected to the supporting body to control the rotational movement of the rotating shaft 8, and then drives the cutting assembly 25 to rotate to cut piles; the dust reduction unit, which includes a liquid storage container 24, a pumping part and a spraying part, the liquid storage container 24 is connected to the vehicle body 1, the spraying part includes a spray adjusting mechanism and a spray head 18, the spray head 18 is connected to the supporting body through the spray adjusting mechanism, the spray adjusting mechanism can control the movement of the spray head 18, and the pumping part is used to transport the liquid in the liquid storage container 24 to the spray head 18. This embodiment can not only spray to reduce dust during pile cutting operations, but the adjustment mechanism can also adjust the height of the cutting component 25 to ensure the construction quality under various pile cutting requirements. It can also prevent the cutting component 25 from colliding with the ground when moving in different ground environments, affecting its service life. The spray adjustment mechanism can also control the movement of the nozzle 18, adjust the spray position, and ensure the spray effect.

[0032] In this embodiment, the spray adjustment mechanism includes a connecting body 10, a first sealing ring 16, and a power assembly. The connecting body 10 is connected to the supporting body, and the rotating shaft 8 is provided through the connecting body 10. An annular water storage chamber 15 is provided in the connecting body 10. The pumping unit can transport the liquid in the liquid storage container 24 to the annular water storage chamber 15. The first sealing ring 16 is slidably connected to the bottom of the annular water storage chamber 15, and the annular water storage chamber 15 and the first sealing ring 16 are both distributed in a circle with the rotating shaft 8 as the center. The power assembly is connected to the connecting body 10 to control the circumferential rotation of the first sealing ring 16 along the rotating shaft 8. The spray head 18 is connected to the first sealing ring 16, and the input end of the spray head 18 is connected to the annular water storage chamber 15. The power assembly of this embodiment can control the synchronous movement of the first sealing ring 16 and the spray head 18 along the circumference of the rotating shaft 8, adjust the spray position, and ensure the spray effect under different construction environments.

[0033] In this embodiment, the spray adjustment mechanism further includes a rotating ring assembly connected to the first sealing ring 16. The power assembly includes a first motor 19 and a drive gear 20. The rotating ring assembly is configured with external teeth that mate with the drive gear 20. The first motor 19 is connected to the connecting body 10. The output end of the first motor 19 is connected to the drive gear 20 to control the rotational movement of the rotating ring assembly. The spray head 18 is connected to the rotating ring assembly. Preferably, the rotating ring assembly includes a rotating ring body 13, the exterior of the rotating ring body 13 is fixedly connected to the ring gear 14, the exterior of the ring gear 14 meshes with the drive gear 20. The bottom end of the first sealing ring 16 is connected to the rotating ring body 13, and the spray head 18 is connected to the rotating ring body 13. The first motor 19 can control the rotation of the drive gear 20 to drive the rotating ring assembly. When the rotating ring assembly rotates, the spray head 18 and the first sealing ring 16 can move synchronously along the circumference of the rotating shaft 8 to adjust the spray position. This embodiment has a simple structure and can achieve circumferential movement of the spray head 18 controlled by the first motor 19. The spray position can be flexibly adjusted to better ensure the spray effect.

[0034] In this embodiment, the spray adjustment mechanism also includes an adjustment body 11, a second sealing ring 12 and a connecting pipe 17. The adjustment body 11 is connected to the bottom of the connecting body 10. The bottom end of the rotating shaft 8 sequentially passes through the connecting body 10 and the adjustment body 11 and extends to the bottom of the adjustment body 11 and is connected to the cutting assembly 25. The rotating ring assembly and the driving gear 20 are arranged in the adjustment body 11. The output end of the first motor 19 extends into the adjustment body 11 and is connected to the driving gear 20. The bottom end of the first sealing ring 16 extends into the adjustment body 11 and is connected to the rotating ring assembly 25. The nozzle 18 is connected to the regulating body 11 through the second sealing ring 12. Preferably, the second sealing ring 12 can also rotate about the rotating shaft 8, thereby driving the nozzle 18 to move circumferentially along the rotating shaft 8. The connecting pipe 17 is inserted into the first sealing ring 16 and the rotating ring assembly. The top of the connecting pipe 17 is connected to the annular water storage chamber 15. The input end of the nozzle 18 passes through the second sealing ring 12 and extends to the rotating ring assembly to connect with the connecting pipe 17, thereby achieving communication between the input end of the nozzle 18 and the annular water storage chamber 15 through the connecting pipe 17. In this embodiment, the rotating ring assembly and the drive gear 20 are externally protected by the regulating body 11, thereby better ensuring the service life of the pile cutting device. The connection structure and assembly method in which the first sealing ring 16 is slidably connected to the connecting body 10 and seals and protects the annular water storage chamber 15, and the second sealing ring 12 is slidably connected to the adjusting body 11 and seals and protects the space for installing the driving gear 20 and the rotating ring assembly are both existing technologies and can be flexibly selected based on the common technical knowledge of technicians in this field, such as adding sealing rings, etc., which are not described separately in the present invention.

[0035] In this embodiment, the drive unit includes a second motor 3, a first transmission wheel 9, a second transmission wheel 26, and a transmission member. The second motor 3 is connected to the support body, and the output end of the second motor 3 is connected to the first transmission wheel 9. The first transmission wheel 9 is in transmission connection with the second transmission wheel 26 via the transmission member, and the rotating shaft 8 is connected to the support body via the second transmission wheel 26. Preferably, the first transmission wheel 9 and the second transmission wheel 26 are both pulleys, and the transmission member is a belt. The first transmission wheel 9 is in transmission connection with the second transmission wheel 26 via the belt to achieve power transmission. The second motor 3 can control the rotation of the first transmission wheel 9 and drive the rotation of the second transmission wheel 26 via the transmission member. The second transmission wheel 26 is rotatably connected to the support body. When the second transmission wheel 26 rotates, it drives the rotating shaft 8 to rotate and cuts the pile through the cutting assembly.

[0036] In this embodiment, the support body includes a fixed box 2, a transmission box 4, and a mounting frame 7. The adjustment mechanism includes two hydraulic rods 5, each fixedly connected to the top of the vehicle body 1. The fixed box 2 is located between the two hydraulic rods 5. The telescopic end of the hydraulic rod 5 is connected to the fixed box 2 via a fixed block 6. The transmission box 4 is fixedly connected to the bottom of the fixed box 2. The mounting frame 7 is connected to the transmission box 4. A first transmission wheel 9 is located within the transmission box 4. A second motor 3 is connected to the fixed box 2. The output end of the second motor 3 extends into the transmission box 4 and is connected to the first transmission wheel 9. The second transmission wheel 26 and the spray adjustment mechanism are respectively connected to the mounting frame 7. The hydraulic rods 5 not only accurately control the height of the cutting assembly to adapt to different environments or pile cutting height requirements and ensure pile cutting quality, but also can lift the cutting assembly before the pile cutting device moves to prevent the cutting assembly from colliding with the ground during movement, making it more suitable for various construction environments. The spray adjustment mechanism is used to adjust the position of the spray head 18, achieving adjustable pile cutting height, spray angle, or position, achieving precise pile cutting operations and dynamically adjusting dust reduction.

[0037] In this embodiment, the pumping unit includes a pump 22 and a transmission pipe 21. The liquid storage container 24, pump 22, and transmission pipe 21 are sequentially connected and communicate with the nozzle 18. Preferably, the transmission pipe 21 is a flexible hose, with its end away from the pump 22 extending into the annular water storage chamber 15. A refill valve 23 is provided at the top of the liquid storage container 24, and the bottom of the refill valve 23 extends into the interior of the liquid storage container 24. A handle is provided on the top of the vehicle body 1, and a controller is installed on the handle to facilitate the operator's operation of the pile cutting device through the controller.

[0038] On the other hand, the present invention also provides a method for using the pile cutting device, comprising the following steps:

[0039] During use, the vehicle body 1 is moved to the working position, and the cutting assembly 25 is adjusted to a preset height through the adjustment mechanism. Usually, the telescopic end of the hydraulic rod 5 drives the fixed block 6 to move downward, and the fixed block 6 drives the fixed box 2, the transmission box 4, the mounting frame 7, the rotating shaft 8 and the cutting assembly 25 to move downward synchronously until the cutting assembly 25 reaches the preset height.

[0040] The driving part is started to rotate the rotating shaft 8, and the pile is cut by the cutting assembly 25. Specifically, the second motor 3 is started to drive the first transmission wheel 9 to rotate. The first transmission wheel 9 drives the second transmission wheel 26 to rotate through the transmission member. The second transmission wheel 26 drives the rotating shaft 8 to rotate so that the blade of the cutting assembly 25 rotates to cut the CFG pile.

[0041] The liquid in the liquid storage container 24 is transported to the nozzle 18 through the pumping part to reduce dust. The spray adjustment mechanism can control the movement of the nozzle 18 to adjust the spray position. Specifically, the liquid in the liquid storage container 24 can be extracted by the pump 22, and then the liquid is input into the annular water storage chamber 15 through the transmission pipe 21. The liquid in the annular water storage chamber 15 is introduced into the nozzle 18 through the connecting pipe 17 and sprayed out to reduce dust generated by the cut CFG pile; the first motor 19 can control the rotation of the driving gear 20, and the driving gear 20 drives the rotating ring body 13 to rotate through the ring gear 14. The rotation of the rotating ring assembly can drive the first sealing ring 16 and the nozzle 18 to rotate synchronously, and the nozzle 18 drives the second sealing ring 12 to perform circular steering motion synchronously, so as to adjust the angle of the nozzle 18 or the spray position, thereby better ensuring the dust reduction effect.

[0042] When the pile cutting device needs to be moved, the operator controls the fixed block 6 to move upward through the hydraulic rod 5, thereby lifting the cutting assembly to a predetermined height, which facilitates movement and avoids collision with the cutting assembly during movement, thereby better ensuring that the pile cutting device can be applied to various construction environments.

[0043] The present invention is equipped with a movable vehicle body 1, a liquid storage container 24, and a nozzle 18. The fluid medium in the liquid storage container 24 is transported to the annular water storage chamber 15 through the transmission pipe 21 by the pump 22. The fluid medium is then input from the annular water storage chamber 15 into the connecting pipe 17, and then transported to the nozzle 18 through the connecting pipe 17 for spraying. This reduces dust generated by cutting CFG piles and protects the health of workers. The present invention is also equipped with a hydraulic rod 5. When the pile cutting device needs to be moved, the operator pushes the fixed block 6 through the telescopic end of the hydraulic rod 5, so that the fixed block 6 drives the fixed box 2, the second motor 3, the transmission box 4, the mounting frame 7, the rotating shaft 8, and the cutting assembly 25 to move upward to a predetermined position, thereby pushing the pile cutting device to move and preventing the blade of the cutting assembly 25 from striking stones on the ground during movement, causing damage to the assembly.

[0044] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A pile cutting device, characterized in that: include: a mobile unit comprising a movable vehicle body; The pile cutting unit includes a driving unit and an executing unit. The executing unit includes an adjusting mechanism, a supporting body, a rotating shaft, and a cutting assembly. The adjusting mechanism is connected to the vehicle body, the output end of the adjusting mechanism is connected to the supporting body, the cutting assembly is rotatably connected to the supporting body via the rotating shaft, and the driving unit is connected to the supporting body to control the movement of the rotating shaft. The dust reduction unit includes a liquid storage container, a pumping part and a spraying part. The liquid storage container is connected to the vehicle body. The spraying part includes a spray adjustment mechanism and a nozzle. The nozzle is connected to the supporting body through the spray adjustment mechanism. The spray adjustment mechanism can control the movement of the nozzle. The pumping part is used to transport the liquid in the liquid storage container to the nozzle.

2. The pile cutting device according to claim 1, characterized in that: The spray adjustment mechanism includes a connecting body, a first sealing ring and a power assembly. The connecting body is connected to the supporting body, the rotating shaft is passed through the connecting body, an annular water storage chamber is provided in the connecting body, the pumping part can transport the liquid in the liquid storage container to the annular water storage chamber, the first sealing ring is slidably connected to the bottom of the annular water storage chamber, the power assembly is connected to the connecting body to control the circumferential rotation of the first sealing ring along the rotating shaft, the nozzle is connected to the first sealing ring and the input end of the nozzle is communicated with the annular water storage chamber.

3. The pile cutting device according to claim 2, characterized in that: The spray adjustment mechanism also includes a rotating ring assembly, which is connected to the first sealing ring. The power assembly includes a first motor and a driving gear. The rotating ring assembly is configured with external teeth that can cooperate with the driving gear. The first motor is connected to the connecting body, and the output end of the first motor is connected to the driving gear to control the movement of the rotating ring assembly. The spray head is connected to the rotating ring assembly.

4. The pile cutting device according to claim 3, characterized in that: The spray adjustment mechanism also includes an adjustment body, a second sealing ring and a connecting pipe. The adjustment body is connected to the connecting body. The rotating shaft passes through the connecting body and the adjustment body in sequence and is connected to the cutting assembly. The rotating ring assembly and the driving gear are arranged in the adjustment body. The spray head is slidingly connected to the adjustment body through the second sealing ring. The connecting pipe is inserted into the first sealing ring and the rotating ring assembly. The input end of the spray head is connected to the annular water storage chamber through the connecting pipe.

5. The pile cutting device according to any one of claims 1 to 4, characterized in that: The driving part includes a second motor, a first transmission wheel, a second transmission wheel and a transmission member. The second motor is connected to the supporting body, the output end of the second motor is connected to the first transmission wheel, the first transmission wheel is connected to the second transmission wheel through the transmission member, and the rotating shaft is connected to the supporting body through the second transmission wheel.

6. The pile cutting device according to claim 5, characterized in that: The supporting body includes a fixed box, a transmission box and a mounting frame. The adjusting mechanism includes two hydraulic rods respectively connected to the vehicle body. The fixed box is arranged between the two hydraulic rods and the telescopic end of the hydraulic rod is connected to the fixed box. The transmission box is connected to the fixed box. The mounting frame is connected to the transmission box. The second motor is connected to the fixed box. The first transmission wheel is arranged in the transmission box. The second transmission wheel and the spray adjustment mechanism are respectively connected to the mounting frame.

7. The pile cutting device according to any one of claims 1 to 4, characterized in that: The pumping part includes a pump and a transmission pipe. The liquid storage container, the pump and the transmission pipe are connected in sequence to communicate with the spray head.

8. A method for using a pile cutting device, comprising the pile cutting device according to any one of claims 1 to 7, characterized in that: The following steps are included: The vehicle body is moved to the working position, the cutting assembly is adjusted to a preset height by the adjusting mechanism, the driving part is activated to rotate the rotating shaft, and the cutting assembly is used to cut the pile; The liquid in the liquid storage container is transported to the spray head through the pumping part to reduce dust, and the spray adjustment mechanism can control the movement of the spray head to adjust the spray position.