Portable pile cutting device

Abstract

The present invention is a portable pile cutting device, comprising: a clamp, the clamp comprising a plurality of arc-shaped hoop pieces, two adjacent arc-shaped hoop pieces being hinged, and an arc track being provided on the top of the clamp; a sliding support portion, the sliding support portion comprising a slider, the slider being able to slide along the arc track, and a support arm being provided on the bottom of the slider for rotation; a sawing execution portion, the sawing execution portion comprising a sawing mechanism, the sawing mechanism being located on the support arm, the sawing mechanism comprising a saw disk, a protective cover being provided on the outer side of the saw disk, and the relative angle between the protective cover and the slider being unchanged during cutting. The synchronous connecting rod, support arm, slider, and protective cover of the present invention form a closed, parallelogram-shaped four-bar structure, so that while the support arm rotates around the hinge axis with the slider during cutting, the protective cover always maintains a fixed angle with the slider, so that it can still play a protective role when the knife is withdrawn, reducing safety hazards; the present invention has a simple structure, is not only convenient to carry, but also easy to disassemble and carry.

Description

Technical Field

[0001] The present invention relates to the technical field of pile cutting equipment, and in particular to a portable pile cutting device. Background Art

[0002] Pile cutting devices are primarily used to cut piles, such as pipe piles and wooden piles, to meet construction length requirements. Existing pile cutting devices suffer from the following major drawbacks: Most existing pile cutting devices are monolithic, making them difficult to carry and, due to their complex structure, inconvenient to install and maintain. Furthermore, the protective cover of existing pile cutting devices is often fixedly connected to the support arm where the sawing mechanism resides. While this provides effective protection during cutting, the saw blade is exposed towards the operator after retracting, posing a significant safety hazard. Summary of the Invention

[0003] The present invention aims to solve the deficiencies of the prior art and provides a portable pile cutting device.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0005] A portable pile cutting device comprising:

[0006] The clamp comprises a plurality of arc-shaped hoop pieces, which are sequentially connected to form a hoop piece belt. Two adjacent arc-shaped hoop pieces are hinged. The ends of the arc-shaped hoop pieces at both ends of the hoop piece belt are equipped with a clamp fixing mechanism for fixing during cutting. The top of the clamp is provided with an arc track.

[0007] The sliding support part includes a slider that can slide along the arc track, and a support arm is provided at the bottom of the slider for rotation;

[0008] The sawing execution part includes a sawing mechanism, which is located on the support arm. The sawing mechanism includes a saw disk, which is driven to rotate by a sawing drive device. A protective cover is provided on the outside of the saw disk, which is rotatably connected to the support arm. The relative angle between the protective cover and the slider remains unchanged when the knife is fed.

[0009] Furthermore, there are two arc-shaped hoop pieces.

[0010] Furthermore, the clamp fixing mechanism includes two fixing seats, which are respectively located at the ends of the two arc-shaped hoop pieces away from the hinge. The fixing seats are fixedly connected to the arc-shaped hoop pieces. During cutting, the two fixing seats are fixedly connected by fixing bolts and nuts. The fixing seats are provided with slots or holes for facilitating the insertion of fixing bolts.

[0011] Furthermore, a support shaft is fixed to one side of the top of the slider, the top of the support shaft is fixedly connected to the slider, the bottom of the support shaft is inserted into the arc track and slidably connected to it, and multiple support wheels are provided on the side of the middle of the slider close to the clamp, and the support wheels slide along the side wall of the clamp.

[0012] Furthermore, the sawing drive device is an electric motor or a hydraulic motor.

[0013] Furthermore, a synchronous connecting rod is provided between the protective cover and the slider. The synchronous connecting rod and the support arm are arranged parallel to each other and the two ends are hinged to the protective cover and the slider respectively.

[0014] Furthermore, the protective cover is provided with a handle for easy gripping when cutting.

[0015] The beneficial effects of the present invention are as follows: the synchronous connecting rod, support arm, slider and protective cover of the present invention form a closed, parallelogram four-link structure, so that when the support arm rotates around the hinge axis with the slider during the feeding process, the protective cover always maintains a fixed angle with the slider, so that it can still play a protective role when the knife is retracted, reducing safety hazards; the present invention has a simple structure, is not only convenient to carry, but also easy to disassemble and carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the present invention;

[0017] Figure 2 A top view of the present invention;

[0018] Figure 3 for Figure 1 Cross-sectional view at AA in the middle;

[0019] In the figure: 1-clamp; 11-arc-shaped hoop; 12-clamp fixing mechanism; 121-fixing seat; 122-fixing bolt; 123-nut; 13-arc-shaped track; 2-sliding support portion; 21-slider; 22-support arm; 23-support shaft; 24-support wheel; 3-sawing execution portion; 31-sawing mechanism; 311-saw disk; 312-sawing drive device; 32-protective cover; 33-synchronizing connecting rod; 34-handle;

[0020] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and examples:

[0022] As shown in the figure, a portable pile cutting device includes:

[0023] The clamp 1 includes a plurality of arcuate hoop pieces 11, which are sequentially connected to form a hoop piece belt. Two adjacent arcuate hoop pieces 11 are hinged. The ends of the arcuate hoop pieces 11 at both ends of the hoop piece belt are equipped with a clamp fixing mechanism 12 for fixing during cutting. The top of the clamp 1 is provided with an arcuate track 13;

[0024] The sliding support part 2 includes a slider 21 that can slide along the arc track 13. A support arm 22 is provided at the bottom of the slider 21 for rotation;

[0025] The sawing execution part 3 includes a sawing mechanism 31, which is located on the support arm 22. The sawing mechanism 31 includes a saw disk 311, which is driven to rotate by a sawing drive device 312. A protective cover 32 is provided on the outside of the saw disk 311. The protective cover 32 is rotatably connected to the support arm 22. When the knife is fed, the relative angle between the protective cover 32 and the slider 21 remains unchanged.

[0026] Furthermore, there are two arc-shaped hoop pieces 11 .

[0027] Furthermore, the clamp fixing mechanism 12 includes two fixing seats 121, which are respectively located at the ends of the two arc-shaped hoop pieces 11 away from the hinge. The fixing seats 121 are fixedly connected to the arc-shaped hoop pieces 11. When cutting, the two fixing seats 121 are fixedly connected by fixing bolts 122 and nuts 123. The fixing seats 121 are provided with slots or holes for facilitating the insertion of the fixing bolts 122.

[0028] Furthermore, a support shaft 23 is fixedly provided on one side of the top of the slider 21, the top of the support shaft 23 is fixedly connected to the slider 21, the bottom of the support shaft 23 is inserted into the arc track 13 and is slidably connected thereto, and a plurality of support wheels 24 are provided on one side of the middle of the slider 21 close to the clamp 1, and the support wheels 24 slide along the side wall of the clamp 1.

[0029] Furthermore, the sawing drive device 312 is an electric motor or a hydraulic motor.

[0030] Furthermore, a synchronous link 33 is provided between the protective cover 32 and the slider 21 . The synchronous link 33 and the support arm 22 are arranged parallel to each other and both ends of the synchronous link 33 are hinged to the protective cover 32 and the slider 21 respectively.

[0031] Furthermore, a handle 34 is provided on the protective cover 32 for easy gripping when cutting.

[0032] When the present invention is used, the motor or hydraulic motor is started, and the motor or hydraulic motor drives the saw disc 311 to rotate through the belt transmission mechanism. The operator controls the feed speed through the handle 34, and the synchronous connecting rod 33, the support arm 22, the slider 21, and the protective cover 32 form a closed, parallelogram-shaped four-bar structure. Therefore, during the feed process, the support arm 22 rotates around the hinge axis with the slider 21, and the protective cover 32 rotates relative to the support arm 22, so that it always maintains a fixed angle with the slider 21. In this way, the protective cover 32 can not only provide protection during cutting, but also will not rotate with the support arm 22 when retracting the knife. Instead, it will still maintain the same angle as when feeding, and can still play a protective role, reducing safety hazards. The present invention has a simple structure and is not only convenient to carry, but also easy to disassemble and carry. In addition, a spray nozzle for cooling and dust removal can be set on the protective cover 32, thereby improving cutting efficiency.

[0033] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A portable pile cutting device, characterized in that: include: A clamp (1), the clamp (1) comprises a plurality of arc-shaped hoop pieces (11), the plurality of arc-shaped hoop pieces (11) are sequentially connected to form a hoop piece belt, two adjacent arc-shaped hoop pieces (11) are hinged, the ends of the arc-shaped hoop pieces (11) at both ends of the hoop piece belt are provided with a clamp fixing mechanism (12) for fixing during cutting, and a curved track (13) is provided on the top of the clamp (1); A sliding support portion (2), the sliding support portion (2) includes a slider (21), the slider (21) can slide along the arc track (13), and a support arm (22) is rotatably provided at the bottom of the slider (21); A sawing execution part (3), the sawing execution part (3) includes a sawing mechanism (31), the sawing mechanism (31) is located on the support arm (22), the sawing mechanism (31) includes a saw disk (311), the saw disk (311) is driven to rotate by a sawing drive device (312), a protective cover (32) is provided on the outer side of the saw disk (311), the protective cover (32) is rotatably connected to the support arm (22), and the relative angle between the protective cover (32) and the slider (21) remains unchanged during cutting; A support shaft (23) is fixedly provided on one side of the top of the slider (21), the top of the support shaft (23) is fixedly connected to the slider (21), the bottom of the support shaft (23) is inserted into the arc track (13) and is slidably connected thereto, and a plurality of support wheels (24) are provided on one side of the middle of the slider (21) close to the clamp (1), and the support wheels (24) slide along the side wall of the clamp (1); A synchronous connecting rod (33) is provided between the protective cover (32) and the slider (21), the synchronous connecting rod (33) and the support arm (22) are arranged parallel to each other, and both ends are hinged to the protective cover (32) and the slider (21) respectively; The clamp fixing mechanism (12) includes two fixing seats (121), the two fixing seats (121) are respectively located at the ends of the two arc-shaped hoop pieces (11) away from the hinge, the fixing seats (121) are fixedly connected to the arc-shaped hoop pieces (11), and the two fixing seats (121) are fixedly connected by fixing bolts (122) and nuts (123) during cutting. The fixing seats (121) are provided with slots or jacks for facilitating the insertion of the fixing bolts (122).

2. The portable pile cutting device according to claim 1, characterized in that The number of arc-shaped hoop pieces (11) is two.

3. The portable pile cutting device according to claim 1, characterized in that The sawing drive device (312) is an electric motor or a hydraulic motor.

4. The portable pile cutting device according to claim 1, characterized in that The protective cover (32) is provided with a handle (34) for easy grasping during cutting.

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