Pile cutting machine with protection function for constructional engineering
By installing cleaning and adjustment mechanisms on the pile cutter, the problem of dust entering the hydraulic cylinder is solved, thus improving equipment protection and maintenance convenience, and enhancing equipment stability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CHUANQIN CONSTR ENG CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-08
AI Technical Summary
Existing pile cutters lack protective features during use, and dust easily adheres to the surface of the drill rod and enters the hydraulic cylinder, causing equipment damage and resulting in poor practicality.
A pile cutter with a cleaning mechanism was designed, including protective components and an adjustment mechanism. The cleaning brush cleans the dust on the surface of the drill rod, and the stepper motor drives the gears and racks to achieve stable movement of the equipment. The hydraulic control box provides power to ensure the stability and disassembly of the hydraulic cylinder.
It effectively cleans dust from the surface of the drill rod, reduces the probability of dust entering the hydraulic cylinder, improves the protective effect of the equipment, facilitates maintenance, and enhances the stability and service life of the equipment.
Smart Images

Figure CN224213290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile cutting machine technology, specifically a pile cutting machine for construction engineering with protective functions. Background Technology
[0002] A pile cutter for construction engineering is a mechanical device that ensures construction safety and improves construction efficiency during pile cutting operations. The pile cutter moves to the location where pile cutting is needed via a traveling mechanism and is adjusted for stability. The hydraulic system is then activated, driving the pile cutting blade to rotate or reciprocate. Simultaneously, the safety device is engaged to ensure construction safety. Once the pile cutting blade contacts the concrete pile, it cuts the pile using the cutting force of the blade. The cut pile is then cleaned and transported by construction personnel or auxiliary equipment.
[0003] In existing technologies, such as the pile cutting machine for construction engineering disclosed in CN220150310U, a connecting ring is included. The top of the connecting ring has a rectangular connecting column, the top of the connecting column has a lifting ring, and the bottom of the connecting ring has a rectangular electric telescopic rod. This electric telescopic rod adjusts the position of the drill rod, improving adaptability to pile head height and connection stability. The drill rod can be replaced individually without replacing all components, improving the convenience of drill rod assembly and disassembly. The limiting inner groove column prevents the drill rod from deforming or bending due to excessive pressure, thus extending the service life of the drill rod.
[0004] Existing pile cutting machines use electric telescopic rods to adjust the position of the chisel, which improves adaptability to pile head height and connection stability. The chisel can be replaced individually without replacing all components. However, most pile cutting machines lack protective features during use. Dust generated during pile cutting easily adheres to the surface of the chisel, causing dust and impurities to easily enter the hydraulic cylinder during extension and retraction, damaging the pile cutting machine and resulting in poor practicality. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] Given that most of the pile cutting machines mentioned above or in the existing technology do not have protective effects during use, the dust generated during pile cutting easily adheres to the surface of the drill rod, causing dust and impurities on the surface of the drill rod to easily enter the hydraulic cylinder when the drill rod extends or retracts, damaging the pile cutting machine and making it impractical.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A protective pile cutter for construction engineering includes a fixed steel frame, a crossbar slidably connected to the inner side of the fixed steel frame, an adjusting component slidably connected to the outer surface of the crossbar, four hooks symmetrically fixed to the outer wall of the adjusting component, a lifting ring connected to the end of each of the four hooks, a hydraulic cylinder fixed to one side of the lifting ring, a cleaning mechanism for cleaning the drill rod on one side of the hydraulic cylinder, an adjusting mechanism for adjusting the drill rod at one end of the hydraulic cylinder, and an adjusting mechanism for adjusting the hydraulic cylinder on the inner side of the adjusting component.
[0009] The cleaning mechanism includes a protective component, which is fixed to one side of the hydraulic cylinder. Two mounting tubes are symmetrically fixed to the outer wall of the protective component. Springs are installed inside the two mounting tubes. The ends of the springs are connected to a movable rod. The ends of the movable rods pass through the inner wall of the protective component and are fixed with a cleaning brush.
[0010] As a further embodiment of this utility model: the adjusting mechanism includes a fixed chisel, which is fixed to the output end of the hydraulic cylinder, and a movable chisel is internally and telescopically connected to the fixed chisel.
[0011] As a further embodiment of this utility model: a fixing bolt is installed on the outer surface of the fixed rod, and the end of the fixing bolt is inserted into a fixing hole opened on the movable rod, and the inner wall of the cleaning brush is tightly fitted with the outer wall of the fixed rod.
[0012] As a further improvement of this utility model: the adjustment mechanism includes a stepper motor, which is fixed to the inside of the adjustment component by screws.
[0013] As a further improvement of this utility model: the power output shaft of the stepper motor is fixed with a gear, and one side of the gear meshes with a rack fixed inside the cross frame.
[0014] As a further improvement of this utility model, the side wall of the crossbar is fixed with a guide strip that matches the adjusting component.
[0015] As a further embodiment of this utility model: a fixing shell is fixed to the outer surface of the hydraulic cylinder, and a mounting bracket is fixed to the outer wall of the fixing shell by bolts.
[0016] As a further improvement of this utility model, a hydraulic control box is installed on the left side of the fixed steel frame.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This utility model uses a stepper motor inside the adjusting component to drive the gear meshing rack to rotate. When the gear rotates, the stepper motor drives the adjusting component to move horizontally on the crossbeam, thereby moving the pile cutter to a suitable position.
[0019] 2. This utility model uses four hooks fixed with steel wire ropes and lifting rings. The hooks are driven by a motor to raise and lower the steel wire ropes, so that the hydraulic cylinder is located outside the pile body that needs to be cut. The four hooks can raise and lower the hydraulic cylinder more stably, ensuring stability.
[0020] 3. This utility model uses a cleaning brush installed inside the protective component to clean dust and impurities adhering to the outer surface of the fixed drill rod. The spring inside the mounting tube can push the movable rod to move, thereby driving the cleaning brush to better contact the outer surface of the fixed drill rod, thus improving the cleaning effect and effectively reducing the entry of dust and impurities into the hydraulic cylinder, thus playing a protective role.
[0021] 4. This utility model allows for the disassembly of the hydraulic cylinder by unscrewing the bolts between the mounting bracket and the fixed shell, thus facilitating maintenance. Attached Figure Description
[0022] Figure 1 A three-dimensional structural diagram of a pile cutter for construction engineering with protective functions;
[0023] Figure 2 A three-dimensional structural diagram of the crossbeam in a pile cutter for construction engineering with protective functions;
[0024] Figure 3 This is a schematic cross-sectional view of the adjusting component in a protective pile cutter for construction engineering.
[0025] Figure 4 This is a schematic cross-sectional view of the fixed drill rod in a pile cutter for construction engineering with protective functions.
[0026] Figure 5 This is a cross-sectional structural diagram of a protective component in a pile cutter for construction engineering with protective functions.
[0027] In the diagram: 1. Fixed steel frame; 2. Horizontal frame; 3. Adjusting component; 4. Hook; 5. Lifting ring; 6. Hydraulic cylinder; 7. Protective component; 71. Mounting tube; 72. Spring; 73. Movable rod; 74. Cleaning brush; 8. Fixed chisel; 81. Movable chisel; 82. Fixing hole; 83. Fixing bolt; 9. Stepper motor; 91. Gear; 92. Rack; 10. Guide bar; 11. Fixed shell; 12. Mounting bracket; 13. Hydraulic control box. Detailed Implementation
[0028] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.
[0031] Example 1
[0032] Please see Figure 1 - Figure 5 This is the first embodiment of the present invention. This embodiment provides a pile cutter for construction engineering with protective function, including a fixed steel frame 1, a cross frame 2 slidably connected to the inner side of the fixed steel frame 1, a track wheel installed at the lower end of the fixed steel frame 1, an adjusting component 3 slidably connected to the outer surface of the cross frame 2, four hooks 4 symmetrically fixed to the outer wall of the adjusting component 3, a lifting ring 5 connected to the end of each of the four hooks 4, a hydraulic cylinder 6 fixed to one side of the lifting ring 5, a cleaning mechanism for cleaning the drill rod on one side of the hydraulic cylinder 6, an adjusting mechanism for adjusting the drill rod at one end of the hydraulic cylinder 6, and an adjusting mechanism for adjusting the hydraulic cylinder 6 on the inner side of the adjusting component 3.
[0033] The cleaning mechanism includes a protective component 7, which is fixed to one side of the hydraulic cylinder 6. Two mounting tubes 71 are symmetrically fixed to the outer wall of the protective component 7. Springs 72 are installed inside the two mounting tubes 71. The ends of the springs 72 are connected to movable rods 73. The ends of the movable rods 73 penetrate the inner wall of the protective component 7 and are fixed with cleaning brushes 74.
[0034] Specifically, a hydraulic control box 13 is installed on the left side of the fixed steel frame 1. A hydraulic pump is installed inside the hydraulic control box 13, and the hydraulic pump is connected to the hydraulic cylinder 6 through a pipeline.
[0035] Furthermore, the cleaning brush 74 installed inside the protective component 7 can clean the dust and impurities adhering to the outer surface of the fixed drill rod 8, and the spring 72 inside the mounting tube 71 can push the movable rod 73 to move, thereby driving the cleaning brush 74 to better contact the outer surface of the fixed drill rod 8, thus improving the cleaning effect.
[0036] Specifically, a fixed shell 11 is fixed to the outer surface of the hydraulic cylinder 6, and a mounting bracket 12 is fixed to the outer wall of the fixed shell 11 by bolts.
[0037] Furthermore, by unscrewing the bolts between the mounting bracket 12 and the fixed housing 11 on the hydraulic cylinder 6, the hydraulic cylinder 6 can be disassembled for easy maintenance.
[0038] In use, the pile cutter is first moved to a suitable position by the track wheels at the bottom of the fixed steel frame 1. A horizontal adjustment mechanism, such as a screw-driven adjustment, can be set between the fixed steel frame 1 and the horizontal frame 2 to adjust the horizontal position of the pile cutter. The cleaning brush 74 set in the protective part 7 can clean the dust and impurities adhering to the outer surface of the fixed drill rod 8. The spring 72 in the mounting tube 71 can push the movable rod 73 to move, thereby driving the cleaning brush 74 to better contact the outer surface of the fixed drill rod 8, thereby improving the cleaning effect and effectively reducing the entry of dust and impurities into the hydraulic cylinder 6, thus playing a protective role. The hydraulic cylinder 6 can be disassembled by unscrewing the bolts between the mounting frame 12 and the fixed housing 11 set on the hydraulic cylinder 6, so as to facilitate maintenance.
[0039] In summary, this protective pile cutter for construction projects can clean the dust and impurities adhering to the surface of the drill rod during use, thereby effectively reducing the entry of dust and impurities into the hydraulic cylinder 6 and playing a protective role. By unscrewing the bolts between the mounting bracket 12 and the fixed shell 11, the hydraulic cylinder 6 can be disassembled for easy maintenance.
[0040] Example 2
[0041] Please see Figure 1 - Figure 5 This is the second embodiment of the present utility model.
[0042] Specifically, the adjustment mechanism includes a fixed drill rod 8, which is fixed to the output end of the hydraulic cylinder 6. A movable drill rod 81 is telescopically connected inside the fixed drill rod 8. A fixing bolt 83 is installed on the outer surface of the fixed drill rod 8. The end of the fixing bolt 83 is inserted into a fixing hole 82 opened on the movable drill rod 81. The inner wall of the cleaning brush 74 is tightly fitted with the outer wall of the fixed drill rod 8.
[0043] Furthermore, by unscrewing the fixing bolts 83 on the fixed drill rod 8, the overall length of the drill rod can be adjusted, and the movable drill rod 81 can be disassembled and replaced individually.
[0044] Specifically, the adjustment mechanism includes a stepper motor 9, which is fixed to the inside of the adjustment component 3 by screws. A gear 91 is fixed to the power output shaft of the stepper motor 9, and a rack 92 fixed inside the crossbeam 2 is meshed on one side of the gear 91.
[0045] Furthermore, the stepper motor 9 inside the adjusting component 3 can drive the gear 91 to mesh with the rack 92 to rotate. Since the rack 92 is fixed to the cross frame 2, when the gear 91 rotates, the stepper motor 9 drives the adjusting component 3 to perform horizontal movement on the cross frame 2.
[0046] Specifically, the side wall of the crossbar 2 is fixed with a guide bar 10 that matches the adjusting component 3.
[0047] Furthermore, the guide strip 10 can serve as a guide.
[0048] In use, the stepper motor 9 inside the adjusting component 3 drives the gear 91 to mesh with the rack 92 and rotate. Since the rack 92 is fixed to the crossbeam 2, the rotation of the gear 91 causes the stepper motor 9 to drive the adjusting component 3 to move horizontally on the crossbeam 2. The guide bar 10 provides guidance, thus moving the pile cutter to a suitable position. The four hooks 4 are fixed with wire ropes and lifting rings 5, and the hooks 4 are driven by a motor to raise and lower the wire ropes, so that the hydraulic cylinder 6 is outside the pile body to be cut. The four hooks 4 can more stably raise and lower the hydraulic cylinder 6, ensuring stability. The hydraulic control box 13 contains a hydraulic pump that can deliver hydraulic oil, which transfers mechanical energy... The pressure energy is converted into liquid pressure and supplied to hydraulic cylinder 6 through pipelines. This causes hydraulic cylinder 6 to move the fixed drill rod 8, which in turn drives the movable drill rod 81 to break the pile body. After breaking, the hydraulic cylinder 6 is lifted by four hooks 4, bringing out the cut-off broken pile head and separating it from the pile body. Hydraulic cylinder 6 then drives the fixed drill rod 8 to reset. Workers can then remove the cut-off pile head. By unscrewing the fixing bolts 83 on the fixed drill rod 8, the fixing bolts 83 are separated from the fixing holes 82, thus releasing the fixation of the movable drill rod 81. At this point, the movable drill rod 81 can be pulled, thereby adjusting the overall length of the drill rod. The movable drill rod 81 can also be disassembled and replaced individually.
[0049] In summary, this protective pile cutter for construction projects can clean dust and impurities adhering to the surface of the drill rod during use, thereby effectively reducing the entry of dust and impurities into the hydraulic cylinder 6 and playing a protective role. By unscrewing the bolts between the mounting bracket 12 and the fixed housing 11, the hydraulic cylinder 6 can be disassembled for easy maintenance. Furthermore, the stepper motor 9 inside the adjusting component 3 can drive the gear 91 to mesh with the rack 92 to rotate. When the gear 91 rotates, the stepper motor 9 drives the adjusting component 3 to move horizontally on the crossbeam 2, thereby moving the pile cutter to a suitable position.
[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0051] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0052] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A pile cutter for construction engineering with protective function, comprising a fixed steel frame (1), characterized in that: The inner side of the fixed steel frame (1) is slidably connected to a cross frame (2), and the outer surface of the cross frame (2) is slidably connected to an adjusting member (3). Four hooks (4) are symmetrically fixed on the outer wall of the adjusting member (3). The ends of the four hooks (4) are all connected to a lifting ring (5). A hydraulic cylinder (6) is fixed on one side of the lifting ring (5). A cleaning mechanism for cleaning the drill rod is provided on one side of the hydraulic cylinder (6). An adjusting mechanism for adjusting the drill rod is provided at one end of the hydraulic cylinder (6). An adjusting mechanism for adjusting the hydraulic cylinder (6) is provided on the inner side of the adjusting member (3). The cleaning mechanism includes a protective component (7), which is fixed to one side of the hydraulic cylinder (6). Two mounting tubes (71) are symmetrically fixed to the outer wall of the protective component (7). Springs (72) are installed inside the two mounting tubes (71). A movable rod (73) is connected to the end of the spring (72). A cleaning brush (74) is fixed to the end of the movable rod (73) through the inner wall of the protective component (7).
2. A pile cutter for construction engineering with protective function according to claim 1, characterized in that: The adjustment mechanism includes a fixed drill rod (8), which is fixed to the output end of the hydraulic cylinder (6), and a movable drill rod (81) is internally telescopically connected to the fixed drill rod (8).
3. A pile cutter for construction engineering with protective function according to claim 2, characterized in that: The outer surface of the fixed drill rod (8) is fitted with a fixing bolt (83), and the end of the fixing bolt (83) is connected to a fixing hole (82) opened on the movable drill rod (81). The inner wall of the cleaning brush (74) is tightly fitted with the outer wall of the fixed drill rod (8).
4. A pile cutter for construction engineering with protective function according to claim 3, characterized in that: The adjustment mechanism includes a stepper motor (9), which is fixed to the inside of the adjustment member (3) by screws.
5. A pile cutter for construction engineering with protective function according to claim 4, characterized in that: The power output shaft of the stepper motor (9) is fixed with a gear (91), and one side of the gear (91) is engaged with a rack (92) fixed inside the cross frame (2).
6. A pile cutter for construction engineering with protective function according to claim 1, characterized in that: The side wall of the crossbar (2) is fixed with a guide bar (10) that matches the adjusting member (3).
7. A pile cutter for construction engineering with protective function according to claim 6, characterized in that: The outer surface of the hydraulic cylinder (6) is fixed with a fixed shell (11), and the outer wall of the fixed shell (11) is fixed with a mounting bracket (12) by bolts.
8. A pile cutter for construction engineering with protective function according to claim 7, characterized in that: A hydraulic control box (13) is installed on the left side of the fixed steel frame (1).
Citation Information
Patent Citations
Pile cutting machine for constructional engineering
CN220150310U