Pneumatic cutting structure

Abstract

The utility model discloses a pneumatic cutting structure, which relates to the technical field of cutting saws and comprises a support frame, the support frame is an inverted U-shaped component, two opposite ends of the bottom of the support frame are provided with air cylinder push rods, opposite ends of the two air cylinder push rods are provided with pneumatic motors, opposite ends of the two pneumatic motors are provided with shells, and the shells are arranged on the support frame. An output shaft of the pneumatic motor extends into the shell, a saw blade is arranged at the extending end of the output shaft of the pneumatic motor, the bottom end of the saw blade extends out of the bottom of the shell, and two dust collection boxes are arranged at the positions, on the two sides of the saw blade, of the edge of the bottom of the shell. By arranging a series of structures, when cutting is conducted, the pneumatic cutting mechanism can conduct cutting according to the preset width, it is guaranteed that rocks or ore materials can be cut into the preset size, manual adjustment is not needed, the cutting efficiency is higher, dust is prevented from being driven by airflow to diffuse in a tunnel during cutting, and the cleanliness of air in the tunnel is higher.

Description

Technical Field

[0001] This utility model relates to the field of cutting saw technology, specifically a pneumatic cutting structure. Background Technology

[0002] Pneumatic cutting is a technology that uses compressed air as a power source to perform cutting operations. This cutting method is used in many industrial and manual operation scenarios. Pneumatic cutting tools are relatively safe to use in some flammable and explosive environments because they do not require electricity or other energy sources that may generate electric sparks.

[0003] In coal mine tunnel mining, pneumatic cutting structures are needed to cut rocks or minerals. Most existing pneumatic cutting structures are single saw blades, requiring users to cut at two or more locations to cut the material into blocks. This is inefficient and makes it impossible to precisely adjust the cutting width. Furthermore, dust is easily carried by the airflow during cutting and spreads throughout the tunnel, polluting the air inside. Utility Model Content

[0004] The purpose of this invention is to provide a wind-driven cutting structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic cutting structure, including a support frame, the support frame being an inverted U-shaped component, with cylinder push rods provided at both opposite ends of the bottom of the support frame, and pneumatic motors provided at opposite ends of the two cylinder push rods, with housings provided at opposite ends of the two pneumatic motors, the output shaft of the pneumatic motor extending into the housing, and a saw blade provided at the extended end of the pneumatic motor output shaft, with the bottom end of the saw blade extending out of the bottom of the housing, and two dust collection boxes provided at the bottom edges of the housing on both sides of the saw blade. Each of the dust collection boxes has an opening at its opposite ends. Each of the two dust collection boxes has a connecting tube at its top. The connecting tube is L-shaped, with its top extending out of the housing. A dust collection chamber is located at the extended end of the connecting tube. An air extraction fan is located on the top of the dust collection chamber. The dust collection chamber is a hollow square component. A dust collection box is detachably installed inside the dust collection chamber. Lifting rods are located at the four corners of the top of each dust collection box. A dust collection net is connected to the top of all four lifting rods, and the dust collection net is positioned higher than the connection point between the connecting tube and the dust collection chamber.

[0006] Preferably, extension frames are provided at the front and rear edges of the bottom of both housings. A connecting rod is sleeved inside the two extension frames on the same side. A reinforcing frame is provided at both ends of the two connecting rods. The top ends of the four reinforcing frames are connected to the bottom end of the support frame. The reinforcing frames fix the connecting rods under the support frame. The two connecting rods and the extension frames work together to reinforce the two housings and prevent the housings from shifting.

[0007] Preferably, each of the two housings is provided with a reinforcing limiting slider at its top end. The top ends of the two limiting sliders are movably connected to the bottom end of the support frame. The reinforcing limiting sliders can move linearly at the bottom end of the support frame and work in conjunction with the two connecting rods to limit the housing, ensuring that the housing does not deviate when it moves.

[0008] Preferably, the front end of the support frame is provided with an adapter pipe, and the two air outlets of the adapter pipe are respectively connected to the corresponding wind motors through hoses. The top of the adapter pipe is connected to an external air supply pipe, which delivers air to the corresponding wind motor position through the hoses.

[0009] Preferably, one end of the dust collection chamber is detachably fitted with a cover, which can seal the dust collection chamber to prevent the gas carrying dust from leaking out of the dust collection chamber, so as to facilitate the collection of dust.

[0010] Preferably, the top of the cover and the dust collection chamber are connected by a fixing rod, which fixes the cover to the front end of the dust collection chamber for easy disassembly. After disassembly, the dust collection box can be taken out from the dust collection chamber for centralized dust treatment.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This pneumatic cutting structure uses two saw blades driven by pneumatic motors. Two cylinder push rods drive the two pneumatic motors to perform linear motion, thereby adjusting the distance between the two saw blades. During cutting, the pneumatic cutting mechanism can cut according to the preset width, ensuring that rocks or minerals can be cut into the predetermined size without manual adjustment, resulting in higher cutting efficiency.

[0013] 2. This pneumatic cutting structure uses dust collection boxes located on both sides of the two saw blades. The dust collection boxes are connected to a dust collection chamber via pipes. During cutting, the air carrying dust is drawn into the dust collection chamber by the dust collection boxes. The dust is then removed by the dust capture net inside the dust collection chamber and collected. This prevents dust from being carried by the air and spreading in the tunnel during cutting, thus making the air in the tunnel cleaner. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the shell structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the dust collection chamber structure of this utility model in disassembled state.

[0017] In the diagram: 1. Support frame; 2. Adapter pipe; 3. Reinforcing frame; 4. Housing; 5. Connecting rod; 6. Pneumatic motor; 7. Cylinder push rod; 8. Reinforcing limit slider; 9. Extension frame; 10. Dust collection chamber; 11. Saw blade; 12. Fixing rod; 13. Cover; 14. Lifting rod; 15. Dust capture net; 16. Exhaust fan; 17. Through pipe; 18. Dust collection box; 19. Dust collection box. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] like Figures 1 to 3As shown, this embodiment of a pneumatic cutting structure includes a support frame 1, which is an inverted U-shaped component. At each of the two opposite ends of the bottom of the support frame 1, there is a cylinder push rod 7, i.e., a cylinder and a push rod assembly used in conjunction with it. At each opposite end of the two cylinder push rods 7, there is a pneumatic motor 6. The two cylinder push rods 7 can drive the two pneumatic motors 6 to perform relative linear motion. At each opposite end of the two pneumatic motors 6, there is a housing 4. The output shaft of the pneumatic motor 6 extends into the housing 4. A saw blade 11 is provided at the extended end of the output shaft of the pneumatic motor 6. The bottom of the housing 4 extends outwards, protecting the top of the saw blade 11. The saw blade 11 is driven to rotate by the pneumatic motor 6 for cutting. When the cylinder push rod 7 drives the pneumatic motor 6 to move linearly, the distance between the two saw blades 11 is adjusted to facilitate cutting at a predetermined width. Two dust collection boxes 18 are provided at the bottom edges of the housing 4 on both sides of the saw blade 11. Each dust collection box 18 has an opening at its opposite end, and each dust collection box 18 has a connecting pipe 17 at its top. The connecting pipe 17 is an L-shaped component, and its top extends outwards from the housing. At one end of the 4, the extension end of the connecting pipe 17 is provided with a dust collection chamber 10. An exhaust fan 16 is installed on the top of the dust collection chamber 10. The exhaust fan 16 draws air from the dust collection box 18 through the connecting pipe 17. The dust collection box 18 creates negative pressure on both sides of the saw blade 11, drawing in most of the dust generated during cutting. The dust then enters the dust collection chamber 10 through the dust collection box 18 and the connecting pipe 17. The dust collection chamber 10 is a hollow square component. A dust collection box 19 is detachably installed inside the dust collection chamber 10. Lifting rods 14 are installed at the four corners of the top of the dust collection box 19. The top is connected to a dust capture net 15, and the position of the dust capture net 15 is higher than the connection between the pipe 17 and the dust collection chamber 10. When the air carrying dust is inside the dust collection chamber 10, the air will pass through the dust capture net 15 and then be discharged by the exhaust fan 16. When the air passes through the dust capture net 15, the dust will be blocked by the dust capture net 15. The dust capture net 15 is a filter with fine pores, which will block the dust particles, so that most of the dust will remain on the dust capture net 15, and some larger dust particles will fall into the dust collection box 19 for centralized treatment.

[0021] Specifically, extension frames 9 are provided at the front and rear edges of the bottom of the two shells 4. The two extension frames 9 on the same side are connected to a connecting rod 5. Reinforcing frames 3 are provided at both ends of the two connecting rods 5. The tops of the four reinforcing frames 3 are connected to the bottom of the support frame 1. The reinforcing frames 3 fix the connecting rods 5 under the support frame 1. The two connecting rods 5 and the extension frames 9 work together to reinforce the two shells 4 so that the shells 4 will not shift.

[0022] Furthermore, each of the two housings 4 is provided with a reinforcing limiting slider 8 at its top. The top of each limiting slider is movably connected to the bottom of the support frame 1. The reinforcing limiting slider 8 can move linearly at the bottom of the support frame 1 and work in conjunction with the two connecting rods 5 to limit the housing 4, ensuring that the housing 4 will not deviate when it moves.

[0023] Furthermore, the front end of the support frame 1 is provided with an adapter pipe 2. The two air outlets of the adapter pipe 2 are connected to the corresponding wind motors 6 through hoses. The top of the adapter pipe 2 is connected to an external air supply pipe, which delivers air to the corresponding wind motor 6 through the hoses.

[0024] Furthermore, a cover 13 is detachably installed at one end of the dust collection chamber 10. The cover 13 can seal the dust collection chamber 10 to prevent the gas carrying dust from leaking out of the dust collection chamber 10, so as to facilitate the collection of dust.

[0025] Furthermore, the top of the cover 13 and the dust collection chamber 10 are connected together by a fixing rod 12. The fixing rod 12 fixes the cover 13 to the front end of the dust collection chamber 10 for easy disassembly. After disassembly, the dust collection box 19 can be taken out from the dust collection chamber 10 for centralized dust treatment.

[0026] The usage method of this embodiment is as follows: When using the pneumatic cutting structure, a robotic arm-driven cutting mechanism is installed on the top of the support frame 1 for position adjustment. During cutting, the two air outlets of the adapter pipe 2 are connected to the corresponding pneumatic motors 6 via hoses. An external air supply pipe is connected to the top of the adapter pipe 2, and the air is delivered to the corresponding pneumatic motor 6 position via hoses. The pneumatic motor 6 drives the saw blade 11 to rotate for cutting. The cylinder push rod 7 can drive the pneumatic motor 6 to perform linear motion to adjust the distance between the two saw blades 11. When used in conjunction with the robotic arm, a predetermined width can be set during cutting to facilitate the extraction of rock or mineral materials. The integrated pre-defined size is used. During cutting, the air extractor 16 draws air into the dust collection box 18 through the pipe 17. The dust collection box 18 creates negative pressure on both sides of the saw blade 11, drawing in the dust generated during cutting. The dust enters the dust collection chamber 10 through the dust collection box 18 and the pipe 17. When the dust-laden air is inside the dust collection chamber 10, it passes through the dust capture net 15 and is then discharged by the air extractor 16. When the air passes through the dust capture net 15, the dust is blocked by the dust capture net 15 and remains on the dust capture net 15. Some larger dust particles fall into the dust collection box 19 for centralized processing.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pneumatic cutting structure comprising a support frame (1), characterized in that: The support frame (1) is an inverted U-shaped part, the bottom of the support frame (1) is provided with a cylinder push rod (7) at two opposite ends, the opposite ends of the two cylinder push rods (7) are provided with a pneumatic motor (6), the opposite ends of the two pneumatic motors (6) are provided with a shell (4), the output shaft of the pneumatic motor (6) extends into the shell (4), the extending end of the output shaft of the pneumatic motor (6) is provided with a saw blade (11), and the bottom end of the saw blade (11) extends out of the bottom of the shell (4), the bottom edges of the shells (4) on both sides of the saw blade (11) are provided with two dust suction boxes (18), the opposite ends of the two dust suction boxes (18) are provided with openings, and the top ends of the two dust suction boxes (18) are provided with a through pipe (17), the through pipe (17) is an L-shaped part, one end of the through pipe (17) extends out of the shell (4), the extending end of the through pipe (17) is provided with a dust collection cabin (10), the top of the dust collection cabin (10) is provided with an air extractor (16), the dust collection cabin (10) is a hollow square part, and the dust collection cabin (10) is detachably provided with a dust collection box (19), the top end of the dust collection box (19) is provided with a lifting rod (14) at four corner positions, the top ends of the four lifting rods (14) are commonly connected with a dust capturing net (15), and the position of the dust capturing net (15) is higher than the position of the connection between the through pipe (17) and the dust collection cabin (10).

2. A wind cutting structure according to claim 1, wherein: The front and rear surfaces of the bottom of the two shells (4) are provided with an extension frame (9) at the edges, and the inside of the two extension frames (9) on the same side are commonly sleeved with a connecting rod (5), and the two ends of the connecting rod (5) are provided with a reinforcing frame (3), and the top ends of the four reinforcing frames (3) are commonly connected to the bottom end of the support frame (1).

3. The wind-driven cutting structure of claim 1, wherein: The top end of the two shells (4) is provided with a reinforcing and limiting sliding block (8), and the top end of the two reinforcing and limiting sliding blocks (8) is movably connected to the bottom end of the support frame (1).

4. The wind cutting structure of claim 1, wherein: The front end of the support frame (1) is provided with an adapter pipe (2), and the two air outlets of the adapter pipe (2) are connected with corresponding pneumatic motors (6) through hoses.

5. The wind-driven cutting structure of claim 1, wherein: One end of the dust collection cabin (10) is detachably provided with a cover (13).

6. A wind cutting structure according to claim 5, wherein: The top of the cover (13) and the dust collection cabin (10) are commonly connected with a fixing rod (12).

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