Pile sawing machine

Abstract

The pile sawing machine comprises a saw blade assembly, a supporting structure and a driving mechanism capable of driving the saw blade assembly to move on the supporting structure, the saw blade assembly at least comprises a first rotating saw blade, a second rotating saw blade and a driving device, the first rotating saw blade and the second rotating saw blade are arranged in a coplanar mode, and the driving device drives the first rotating saw blade and the second rotating saw blade to rotate respectively or simultaneously. When the saw blade assembly moves on the supporting structure, the first rotating saw blade and the second rotating saw blade move on the plane where the saw blade assembly is located, and the moving track of the first rotating saw blade and the moving track of the second rotating saw blade overlap. According to the pile sawing machine, by arranging the two or more staggered saw blades, simultaneous cutting of the multiple saw blades is achieved, the stability of the saw blades is higher, and the cutting efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of construction machinery, and in particular to a pile sawing machine. Background Art

[0002] During the production and use of precast concrete piles, it is often necessary to cut the piles. Existing commonly used pile sawing devices include rope saw devices and single saw blade devices. Rope saw devices use rope saws with diamond beads, which have low pile sawing efficiency and high cost. In addition, there is a safety hazard of saw blade interruption and injury during pile sawing. Single saw blade devices usually require a circular saw blade that is more than twice the size of the pile to saw the pile, and have low stability and efficiency. There are also devices with small saw blades cutting around, but this device requires a high operating space when in use, and the pile sawing efficiency is not high. Summary of the invention

[0003] The present invention aims at solving the above problems and designs a pile saw. The technical means adopted by the present invention are as follows:

[0004] A pile saw machine includes a saw blade assembly, a support structure and a driving mechanism capable of driving the saw blade assembly to move on the support structure, the saw blade assembly includes at least a first rotating saw blade and a second rotating saw blade arranged in the same plane and a driving device for driving the first rotating saw blade and the second rotating saw blade to rotate separately or simultaneously, when the saw blade assembly moves on the support structure, the first rotating saw blade and the second rotating saw blade move on the plane where they are located and there is an overlapping part in the movement trajectories of the first rotating saw blade and the second rotating saw blade.

[0005] Furthermore, the driving mechanism can drive the saw blade assembly to perform lifting motion, and there is an overlapping portion between the movement trajectories of the first rotating saw blade and the second rotating saw blade in the horizontal direction.

[0006] Furthermore, the support structure includes a base and a support body fixed on the base, the driving mechanism includes a lead screw fixed on the support body, a first motor capable of driving the lead screw to rotate, and a nut block cooperating with the lead screw, and the nut block is fixedly connected to the saw blade assembly.

[0007] Furthermore, the saw blade assembly also includes a shell and a support plate arranged in the shell, the driving device includes a second motor and a third motor for driving a first rotating saw blade and a second rotating saw blade respectively, the first rotating saw blade, the second rotating saw blade, the second motor and the third motor are all fixed on the support plate, the shell is provided with an opening for the pile to pass through, and the first rotating saw blade and the second rotating saw blade are staggered up and down.

[0008] Furthermore, a brush capable of covering the opening is provided at the opening, and two parallel supporting plates are provided in the shell.

[0009] Furthermore, a storage space capable of containing water is provided in the base, forming a water tank structure without a top plate, and a water pump is provided in the storage space, and a water outlet of the water pump can spray water toward the saw blade assembly.

[0010] Furthermore, an accordion protective cover is provided on the outside of the lead screw, the support body is a longitudinally arranged plate-like structure, and the side panels of the shell are provided with fixing parts extending through both sides of the support body, and the fixing parts are fixed to each other with the nut block through a fixing plate.

[0011] Furthermore, the nut block is provided with a guide piece, and the support body is provided with a guide rail that cooperates with the guide piece.

[0012] Furthermore, the width of the overlapping portion of the moving tracks of the first rotating saw blade and the second rotating saw blade is 5 to 50 mm, preferably 5 to 20 mm, and more preferably 10 mm.

[0013] Compared with the prior art, the pile saw machine of the present invention realizes simultaneous cutting by multiple saw blades by providing two or more mutually staggered saw blades, and the saw blades have higher stability and cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model.

[0015] Figure 2 It is a main structural schematic diagram of an embodiment of the utility model.

[0016] Figure 3 yes Figure 2 AA section view.

[0017] Figure 4 yes Figure 2 Top view of the .

[0018] Figure 5 yes Figure 2 Left view of .

[0019] Figure 6 yes Figure 5 BB cross-sectional view.

[0020] Figure 7 yes Figure 5 CC cross-sectional view. DETAILED DESCRIPTION

[0021] like Figures 1 to 7As shown, a pile sawing machine includes a saw blade assembly 1, a support structure 2 and a driving mechanism capable of driving the saw blade assembly 1 to move on the support structure 2, wherein the saw blade assembly 1 includes at least a first rotating saw blade 11 and a second rotating saw blade 12 arranged in the same plane and a driving device for driving the first rotating saw blade 11 and the second rotating saw blade 12 to rotate respectively or simultaneously, and when the saw blade assembly moves on the support structure 2, the first rotating saw blade 11 and the second rotating saw blade 12 move on the plane where they are located and there is an overlapping part in the movement trajectory of the first rotating saw blade and the second rotating saw blade. The width of the overlapping part is 5 to 50 mm, preferably 5 to 20 mm, and more preferably 10 mm. In this embodiment, by setting two or more mutually staggered saw blades, multiple saw blades can be cut simultaneously, and the saw blades have higher stability and high cutting efficiency. In this embodiment, two saw blades are used as an example for explanation, and the diameter of a single saw blade is slightly larger than the width or diameter of the pile to achieve linear movement to complete the pile sawing operation.

[0022] As a preferred solution, the driving mechanism can drive the saw blade assembly 1 to move up and down, and the movement tracks of the first rotating saw blade 11 and the second rotating saw blade 12 overlap in the horizontal direction. In other words, the first rotating saw blade 11 and the second rotating saw blade 12 are arranged in an alternating manner up and down, and the saw blade assembly 1 saws the pile through vertical movement, which saves more horizontal space.

[0023] As a preferred embodiment, the support structure 2 includes a base 21 and a support body 22 fixed on the base 21, the driving mechanism includes a lead screw 31 fixed on the support body 22, a first motor 32 capable of driving the lead screw 31 to rotate, and a nut block 33 cooperating with the lead screw 31, and the nut block 33 is fixedly connected to the saw blade assembly 1.

[0024] As a preferred solution, the saw blade assembly 1 also includes a housing 13 and a support plate 14 disposed in the housing 13. The driving device includes a second motor 15 and a third motor 16 for driving the first rotating saw blade 11 and the second rotating saw blade 12, respectively. The first rotating saw blade 11, the second rotating saw blade 12, the second motor 15 and the third motor 16 are all fixed on the support plate 14. The housing 13 is provided with an opening 17 for the pile to pass through. Preferably, a brush 18 capable of covering the opening 17 is provided at the opening 17. Two support plates 14 disposed in parallel are disposed in the housing 13 to provide more stable support for the saw blade and the motor. Since water is required for cooling during the pile sawing process, the brush 18 is provided during the pile sawing process to prevent dust and sawdust from flying out and water from splashing, thereby preventing environmental pollution.

[0025] As a preferred solution, a storage space capable of accommodating water is provided in the base 21, forming a structure similar to a water tank, and a water pump 23 is provided in the storage space, and a water inlet of the water pump 23 is in the storage space, and a water outlet 24 of the water pump can spray water to the saw blade assembly 1, which plays a cooling role in the process of sawing piles. Preferably, the base 21 is set as a water tank structure without a top plate. When in use, a certain amount of water is filled in the base 21, and the water pump 23 sucks the water and sprays it into the shell for cooling, and then the water flows back to the storage space of the base 21 under the action of gravity for recycling.

[0026] As a preferred solution, an accordion protective cover 34 is provided on the outside of the lead screw 31 to prevent foreign objects from entering and not affect the movement of the saw blade assembly. A guide member 35 is provided on the nut block 33, and a guide rail 25 that cooperates with the guide member 35 is provided on the support body 22. The support body 22 is a plate-like structure arranged longitudinally, and a fixing portion 19 extending through both sides of the support body is provided on the side plate of the housing 13, and the fixing portion is fixed to the nut block 33 through a fixing plate 10. The plate-like support body 22 separates the drive mechanism and the saw blade assembly in space, thereby preventing debris generated during the sawing process from splashing and damaging the drive mechanism.

[0027] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A pile saw, characterized in that: The invention comprises a saw blade assembly, a support structure and a driving mechanism capable of driving the saw blade assembly to move on the support structure, wherein the saw blade assembly comprises at least a first rotating saw blade and a second rotating saw blade arranged in the same plane and a driving device for driving the first rotating saw blade and the second rotating saw blade to rotate separately or simultaneously, and when the saw blade assembly moves on the support structure, the first rotating saw blade and the second rotating saw blade move on the plane where they are located and there is an overlapping part in the movement trajectories of the first rotating saw blade and the second rotating saw blade.

2. The pile saw according to claim 1, characterized in that: The driving mechanism can drive the saw blade assembly to perform lifting motion, and the movement tracks of the first rotating saw blade and the second rotating saw blade have overlapping parts in the horizontal direction.

3. The pile saw according to claim 2, characterized in that: The support structure includes a base and a support body fixed on the base, and the driving mechanism includes a lead screw fixed on the support body, a first motor capable of driving the lead screw to rotate, and a nut block matched with the lead screw, and the nut block is fixedly connected to the saw blade assembly.

4. The pile saw according to claim 3, characterized in that: The saw blade assembly also includes a shell and a support plate arranged in the shell, the driving device includes a second motor and a third motor for driving a first rotating saw blade and a second rotating saw blade respectively, the first rotating saw blade, the second rotating saw blade, the second motor and the third motor are all fixed on the support plate, the shell is provided with an opening for the pile to pass through, and the first rotating saw blade and the second rotating saw blade are staggered up and down.

5. The pile saw according to claim 4, characterized in that: The opening is provided with a brush capable of covering the opening, and the shell is provided with two supporting plates arranged in parallel.

6. The pile saw according to claim 4, characterized in that: A holding space capable of holding water is arranged in the base, forming a water tank structure without a top plate. A water pump is arranged in the holding space, and a water outlet of the water pump can spray water toward the saw blade assembly.

7. The pile saw according to claim 4, characterized in that: An accordion protective cover is provided on the outside of the lead screw, the support body is a longitudinally arranged plate-like structure, and the side plates of the shell are provided with fixing parts extending through both sides of the support body, and the fixing parts are fixed to each other with the nut block through a fixing plate.

8. The pile saw according to claim 4, characterized in that: The nut block is provided with a guide piece, and the support body is provided with a guide rail matched with the guide piece.

9. The pile saw according to any one of claims 1 to 8, characterized in that: The width of the overlapping portion of the moving tracks of the first rotating saw blade and the second rotating saw blade is 5 to 50 mm.

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