A pipe cutting device for concrete pipe piles

Abstract

The utility model relates to the technical field of building engineering relates to a kind of pipe cutting device for concrete pipe pile, it include: first frame body, second frame body and the connecting piece of second frame body being arranged between the first frame body, the first frame body is provided with several groups of broken module and limiting module in circular array, the broken module includes oil cylinder one and the limiting block one being set on the oil cylinder one piston rod, the limiting module includes oil cylinder two and the drill rod being set on the oil cylinder two piston rod, the second frame body is provided with several groups of positioning module in circular array, the positioning module includes oil cylinder three and the positioning block one being set on the oil cylinder three piston rod.The utility model is limited to the pipe pile after cutting by second frame body, prevent falling in the process of lifting, avoid secondary handling, reduce the risk of mechanical injury, improve work efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and to a pile cutting device for concrete pipe piles. Background Technology

[0002] A pile cutter is a type of engineering machinery suitable for quickly cutting off pile heads in pile foundation engineering. Pile cutters are applicable to the cutting of pile heads of various pile foundation types, such as cast-in-place piles and precast piles. Based on the shape of the cut pile head, they can be divided into circular pile cutters and square pile cutters.

[0003] During the operation of existing pile cutting machines, the cut piles may fall during the lifting process, requiring secondary handling, posing a risk of mechanical injury, and restricting work efficiency. Utility Model Content

[0004] This invention provides a pile cutting device for concrete pipe piles to solve the problems of the prior art.

[0005] The objective of this utility model can be achieved through the following technical solution: A pile cutting device for concrete pipe piles, comprising: a first frame, a second frame, and a connecting member disposed between the first frames and the second frame. The first frame is provided with a circular array of several sets of crushing modules and limiting modules. The crushing module includes a first hydraulic cylinder and a first limiting block disposed on the piston rod of the first hydraulic cylinder. The limiting module includes a second hydraulic cylinder and a chisel disposed on the piston rod of the second hydraulic cylinder. The second frame is provided with a circular array of several sets of positioning modules. The positioning module includes a third hydraulic cylinder and a first positioning block disposed on the piston rod of the third hydraulic cylinder.

[0006] In a further improvement, each of the three cylinders includes a cylinder body, a piston rod, a mounting surface one, a mounting section, and a mounting surface two. The mounting surface one is fitted onto the housing at the front end of the cylinder body via a step and is fixed to the frame with bolts. The end of the mounting section is located at the front end of the cylinder body and inserted into the frame. The mounting surface two is fitted onto the front end of the mounting section and is fixed to the frame with bolts. The piston rod is slidably disposed within the cylinder body and the mounting section.

[0007] As a further improvement, the cylinder block is provided with an oil inlet and an oil outlet, and both the oil inlet and the oil outlet are provided with a three-way oil pipe connector.

[0008] In a further improvement, the crushing module and the limiting module are provided in five groups, with each group of the crushing module and the limiting module spaced apart.

[0009] In a further improvement, the positioning module is provided in five groups, with each group of positioning modules corresponding to the crushing module.

[0010] In a further improvement, the connector is a chain.

[0011] Compared with the prior art, this utility model has the following advantages: Initial positioning is achieved by hydraulic cylinder one pushing limiting block one; hydraulic cylinder two drives the drill rod to penetrate the pipe pile to provide an anchor point; hydraulic cylinder three pushes positioning block one to further fix the pipe pile, ensuring stability during the cutting process; the crushing module and limiting module work together to efficiently crush concrete and achieve precise cutting; after cutting, the crushing module and limiting module reset, and the hoisting mechanism lifts the equipment to the storage point. During the lifting process, the positioning module limits the cut pipe pile to prevent it from falling, avoids secondary handling, reduces the risk of mechanical injury, and improves work efficiency and safety. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a partial structural schematic diagram of the present invention;

[0014] Figure 3 This is a schematic diagram of the structure of the hydraulic cylinder of this utility model.

[0015] In the diagram, 1. First frame; 2. Second frame; 3. Crushing module; 31. Cylinder 1; 32. Limiting block 1; 4. Limiting module; 41. Cylinder 2; 42. Chisel; 5. Positioning module; 51. Cylinder 3; 52. Positioning block 1; 6. Connecting piece; 71. Cylinder body; 711. Oil inlet; 712. Oil outlet; 72. Piston rod; 73. Mounting surface 1; 74. Mounting section; 75. Mounting surface 2. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The following is a description of the embodiments and appendices. Figures 1-3 The technical solution of this utility model will be further described below.

[0019] Example 1

[0020] A pile cutting device for concrete pipe piles includes: a first frame 1, a second frame 2, and a connecting member 6 disposed between the first frame 1 and the second frame 2. The first frame 1 is provided with a plurality of crushing modules 3 and limiting modules 4 arranged in a circular array. The crushing module 3 includes a first hydraulic cylinder 31 and a limiting block 32 disposed on the piston rod of the first hydraulic cylinder 31. The limiting module 4 includes a second hydraulic cylinder 41 and a chisel 42 disposed on the piston rod of the second hydraulic cylinder 41. The second frame 2 is provided with a plurality of positioning modules 5 arranged in a circular array. The positioning module 5 includes a third hydraulic cylinder 51 and a positioning block 52 disposed on the piston rod of the third hydraulic cylinder 51.

[0021] like Figures 1 to 3 As shown, when performing concrete pipe pile cutting operations, this utility model first installs the cutting device at the position to be cut. By controlling hydraulic cylinder 31, the limiting block 32 is pushed to make the device fit tightly against the pipe pile, achieving initial positioning and ensuring the stability and accuracy of the cutting device. Next, hydraulic cylinder 41 drives the chisel 42 to extend, and the tip of the chisel 42 firmly penetrates the concrete pipe pile, providing a stable anchor point for subsequent cutting operations and ensuring the stability of the device during the cutting process. During the cutting process, hydraulic cylinder 41 continues to drive the chisel 42 of the crushing module 3 to perform efficient crushing operations on the concrete pipe pile, achieving precise cutting. The crushing module 3 and the limiting module 4 work together to ensure the stability and safety of the cutting process. After completion, the crushing module 3 and the limiting module 4 are reset, and the hoisting mechanism lifts the equipment to the storage point. During the lifting process, the positioning module 5 limits the cut-off pipe pile to prevent the main body of the cut-off pipe pile from falling, avoids secondary handling by workers, reduces the risk of mechanical injury, and improves work efficiency and safety.

[0022] As a further preferred embodiment, the first cylinder 31, the second cylinder 41, and the third cylinder 51 each include a cylinder body 71, a piston rod 72, a first mounting surface 73, a mounting section 74, and a second mounting surface 75. The first mounting surface 73 is fitted onto the housing at the front end of the cylinder body 71 by a step and is fixed to the frame by bolts. The end of the mounting section 74 is located at the front end of the cylinder body 71 and inserted into the frame. The second mounting surface 75 is fitted onto the front end of the mounting section 74 and is fixed to the frame by bolts. The piston rod 72 is slidably disposed within the cylinder body 71 and the mounting section 74.

[0023] Specifically, mounting surface 73 is fitted onto the front housing of cylinder 71 via a stepped structure and fixed to the frame with bolts to ensure stable installation of the cylinder. Next, the end of mounting section 74 is positioned at the front end of cylinder 71 and inserted into the frame, achieving initial connection between the cylinder and the frame. Subsequently, mounting surface 75 is fitted onto the front end of mounting section 74 and further fixed to the frame with bolts, thereby enhancing the connection strength and stability between the cylinder and the frame. Finally, piston rod 72 is slidably positioned inside cylinder 71 and mounting section 74, ensuring smooth extension and retraction under hydraulic pressure. This enables precise control of various actuators (such as limit blocks, chisels, and positioning blocks), simplifying cylinder installation and maintenance, improving the reliability and durability of the entire pile cutting device, and ensuring stable operation of each cylinder under high-intensity working conditions.

[0024] As a further preferred embodiment, the cylinder 71 is provided with an oil inlet hole 711 and an oil outlet hole 712, and both the oil inlet hole 711 and the oil outlet hole 712 are provided with a three-way oil pipe connector.

[0025] As a further preferred embodiment, the crushing module 3 and the limiting module 4 are provided in five groups, with each group of the crushing module 3 and the limiting module 4 arranged at intervals.

[0026] Specifically, five sets of crushing modules 3 and five sets of limiting modules 4 are arranged alternately to form a uniform ring layout. This ensures that when cutting concrete pipe piles, the crushing modules 3 can apply crushing force to the pipe piles evenly, while the limiting modules 4 can effectively limit the displacement of the pipe piles, ensuring the stability and accuracy of the cutting process. The spaced arrangement design allows each crushing module 3 and limiting module 4 to fully perform its function, avoiding mutual interference between functional modules, and enhancing the reliability and efficiency of the entire pile cutting device.

[0027] As a further preferred embodiment, the positioning module 5 is provided in five groups, and each group of the positioning module 5 is provided in a corresponding manner to the crushing module 3.

[0028] As a further preferred embodiment, the connector 6 is a chain.

[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A pile-cutting device for concrete pipe piles, characterized in that, include: The first frame, the second frame, and the connecting piece of the second frame disposed between the first frame are provided. The first frame is provided with a circular array of several sets of crushing modules and limiting modules. The crushing module includes a first hydraulic cylinder and a first limiting block disposed on the piston rod of the first hydraulic cylinder. The limiting module includes a second hydraulic cylinder and a chisel disposed on the piston rod of the second hydraulic cylinder. The second frame is provided with a circular array of several sets of positioning modules. The positioning module includes a third hydraulic cylinder and a first positioning block disposed on the piston rod of the third hydraulic cylinder.

2. The pile cutting device for concrete pipe piles according to claim 1, characterized in that, The first, second, and third hydraulic cylinders each include a cylinder body, a piston rod, a mounting surface one, a mounting section, and a mounting surface two. The mounting surface one is fitted onto the housing at the front end of the cylinder body via a step and is fixed to the frame with bolts. The end of the mounting section is located at the front end of the cylinder body and inserted into the frame. The mounting surface two is fitted onto the front end of the mounting section and is fixed to the frame with bolts. The piston rod is slidably disposed within the cylinder body and the mounting section.

3. A pile-cutting device for concrete pipe piles according to claim 2, characterized in that, The cylinder block is provided with an oil inlet and an oil outlet, and both the oil inlet and the oil outlet are provided with a three-way oil pipe connector.

4. A pile-cutting device for concrete pipe piles according to claim 1, characterized in that, The crushing module and the limiting module are provided in five sets, with each set of the crushing module and the limiting module spaced apart.

5. A pile cutting device for concrete pipe piles according to claim 4, characterized in that, The positioning module is configured in five groups, with each group corresponding to the crushing module.

6. A pile-cutting device for concrete pipe piles according to claim 1, characterized in that, The connector is a chain.

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