Pneumatic quick cut-off device

Abstract

The utility model relates to the technical field of shearing equipment, in particular to a pneumatic rapid cutting device which comprises a pneumatic telescopic rod, a shearing assembly, an adjusting assembly and a driving assembly, the shearing assembly is arranged at one end of the pneumatic telescopic rod, the adjusting assembly is arranged on the outer side of the pneumatic telescopic rod, and the driving assembly is arranged at the other end of the pneumatic telescopic rod. The shearing assembly comprises a connecting disc, first fixing blocks, an arc-shaped frame, a shearing blade, a first connecting plate, a second fixing block and a second connecting plate, the connecting disc is arranged on the outer side of the pneumatic telescopic rod, the first fixing blocks are arranged above the connecting disc, the arc-shaped frame is arranged on one side of each first fixing block, and the shearing blade is arranged on the arc-shaped frame. The arc-shaped frame is rotationally connected with the first fixing block; compressed air is adopted as a power source, instantaneous driving of the shearing assembly is achieved through the pneumatic telescopic rod, and through the composite connecting rod mechanism, linear motion is converted into meshing motion of the shearing blades to achieve rapid shearing.

Description

Technical Field

[0001] This utility model relates to the field of shearing equipment technology, and in particular to a pneumatic rapid cutting device. Background Technology

[0002] In the longwall mining operations of coal mines, the wire mesh cutting process in the triangular area has long relied on manual operation of ordinary wire mesh shears. Traditional wire mesh shears require repeated manual opening and closing operations, resulting in a long single cutting cycle. This leads to a serious mismatch between the processing efficiency of the triangular area and the advancing speed of the coal mining machine. When the coal mining machine is cutting, it is easy for uncut wire mesh to be rolled into the conveyor or wrapped around the drum, and there is also the risk of mechanical overload caused by drum jamming. Although existing wire mesh cutting devices have attempted to use hydraulic drive, there are problems such as system complexity, high maintenance costs, and insufficient explosion-proof performance, which make it difficult to meet the needs of special working conditions in underground coal mines.

[0003] Therefore, to address the above problems, a pneumatic rapid cutting device is proposed. It uses compressed air as a power source and achieves instantaneous drive of the shearing assembly through a pneumatic telescopic rod. Through a compound linkage mechanism, the linear motion is converted into the biting motion of the shearing blade to achieve rapid cutting. Utility Model Content

[0004] In order to overcome the problems of low efficiency, high labor intensity and many safety hazards caused by relying on manual operation in the daily use of traditional cutting devices.

[0005] The technical solution of this utility model is as follows: a pneumatic rapid cutting device, comprising a pneumatic telescopic rod, a shearing assembly, an adjusting assembly, and a driving assembly. The shearing assembly is located at one end of the pneumatic telescopic rod, the adjusting assembly is located on the outer side of the pneumatic telescopic rod, and the driving assembly is located at the other end of the pneumatic telescopic rod. The shearing assembly includes a connecting plate, a first fixing block, an arc-shaped frame, a shearing blade, a first connecting plate, a second fixing block, and a second connecting plate. The connecting plate is located on the outer side of the pneumatic telescopic rod, and the first fixing block is located above the connecting plate. Two sets of the first fixing blocks are provided, with one side of the first fixing block... There is an arc-shaped frame, which is rotatably connected to a first fixed block. A shearing blade is provided at one end of the arc-shaped frame, and the shearing blade is rotatably connected to the arc-shaped frame. A first connecting plate is provided on one side of the shearing blade, which connects to two sets of shearing blades and is rotatably connected to the two sets of shearing blades. A second fixed block is provided at one end of the pneumatic telescopic rod, and the second fixed block is rotatably connected to the pneumatic telescopic rod. A second connecting plate is provided on one side of the second fixed block, and there are two sets of second connecting plates. The two sets of second connecting plates are located on both sides of the second fixed block, and the second connecting plates are rotatably connected to the second fixed block and the arc-shaped frame, respectively.

[0006] Preferably, the pneumatic telescopic rod extends and retracts, causing the second fixed block to move linearly. The linear movement of the second fixed block pulls the second connecting plate, causing the arc frame to rotate. The rotation of the arc frame causes the two sets of shearing blades to rotate. The rotation of the shearing blades allows for rapid mesh cutting. The pneumatic telescopic rod uses compressed air as its power source, making operation simple and reducing the need for additional labor input for cutting and production downtime. It also ensures consistency in cutting coal with staggered blades or in parallel operations, improving work efficiency.

[0007] Preferably, the adjusting assembly includes a connecting ring and a bearing. The connecting ring is provided on the outer side of the pneumatic telescopic rod, and the bearing is provided on the outer side of the connecting ring. The bearing and the connecting ring are rotatably connected.

[0008] Preferably, the adjustment assembly also includes a fixing plate and a threaded tube, with a fixing plate on one side of the pneumatic telescopic rod and a threaded tube on one side of the fixing plate.

[0009] Preferably, the adjustment assembly also includes a threaded rod and a handle. The threaded rod is provided on the inner side of the threaded tube, and a handle is provided at one end of the threaded rod. The threaded rod and the threaded tube are threadedly connected.

[0010] Preferably, the adjustment component also includes a positioning groove. The positioning groove is provided below the connecting plate. Multiple sets of positioning grooves are provided and are evenly distributed in a circle on the lower surface of the connecting plate.

[0011] Preferably, the drive assembly includes a mounting plate and a pneumatic pump, with the mounting plate at one end of the pneumatic telescopic rod and the pneumatic pump located below the mounting plate.

[0012] Preferably, the drive assembly also includes a connecting pipe, with a connecting pipe provided on one side of the pneumatic pump. There are two sets of connecting pipes, and the two sets of connecting pipes are connected to the pneumatic telescopic rod.

[0013] The beneficial effects of this utility model are:

[0014] The pneumatic telescopic rod extends and retracts, causing the second fixed block to move linearly. This linear movement of the second fixed block pulls the second connecting plate, which in turn rotates the arc frame. The rotation of the arc frame then rotates the two sets of shearing blades, allowing for rapid mesh cutting. The pneumatic telescopic rod uses compressed air as its primary power source, making it easy to operate and reducing the need for additional labor input during production downtime. It also ensures consistent cutting of coal by staggered blades or parallel operations, thereby improving work efficiency. Attached Figure Description

[0015] Figure 1 The diagram shown is a first three-dimensional structural schematic of the pneumatic rapid cutting device of this utility model.

[0016] Figure 2The diagram shown is a second three-dimensional structural schematic of the pneumatic rapid cutting device of this utility model.

[0017] Figure 3 The diagram shown is a third-dimensional structural schematic of the pneumatic rapid cutting device of this utility model.

[0018] Figure 4 The diagram shown is a partial cross-sectional view of the pneumatic rapid cutting device of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Pneumatic telescopic rod; 101. Connecting plate; 102. First fixing block; 103. Arc frame; 104. Shearing blade; 105. First connecting plate; 106. Second fixing block; 107. Second connecting plate; 201. Connecting ring; 202. Bearing; 203. Fixing plate; 204. Threaded pipe; 205. Threaded rod; 206. Handle; 207. Positioning groove; 301. Mounting plate; 302. Pneumatic pump; 303. Connecting pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1 and Figure 2 This utility model provides an embodiment: a pneumatic rapid cutting device, including a pneumatic telescopic rod 1, a shearing assembly, an adjusting assembly, and a driving assembly. The shearing assembly is located at one end of the pneumatic telescopic rod 1, the adjusting assembly is located on the outer side of the pneumatic telescopic rod 1, and the driving assembly is located at the other end of the pneumatic telescopic rod 1. The shearing assembly includes a connecting plate 101, a first fixing block 102, an arc-shaped frame 103, a shearing blade 104, a first connecting plate 105, a second fixing block 106, and a second connecting plate 107. The connecting plate 101 is located on the outer side of the pneumatic telescopic rod 1, and the first fixing block 102 is located above the connecting plate 101. Two sets of the first fixing blocks 102 are provided, and an arc-shaped frame 103 is located on one side of the first fixing block 102. 03 is rotatably connected to the first fixing block 102. One end of the arc frame 103 is provided with a shearing blade 104, which is rotatably connected to the arc frame 103. A first connecting plate 105 is provided on one side of the shearing blade 104, which connects two sets of shearing blades 104 and is rotatably connected to the two sets of shearing blades 104. One end of the pneumatic telescopic rod 1 is provided with a second fixing block 106, which is rotatably connected to the pneumatic telescopic rod 1. A second connecting plate 107 is provided on one side of the second fixing block 106, and there are two sets of second connecting plates 107. The two sets of second connecting plates 107 are located on both sides of the second fixing block 106, and the second connecting plates 107 are rotatably connected to the second fixing block 106 and the arc frame 103, respectively.

[0022] Please see Figure 3 and Figure 4 In this embodiment, the adjustment assembly includes a connecting ring 201 and a bearing 202. The connecting ring 201 is located on the outer side of the pneumatic telescopic rod 1, and the bearing 202 is located on the outer side of the connecting ring 201. The bearing 202 and the connecting ring 201 are rotatably connected. The adjustment assembly also includes a fixing plate 203 and a threaded tube 204. The fixing plate 203 is located on one side of the pneumatic telescopic rod 1, and the threaded tube 204 is located on one side of the fixing plate 203. The adjustment assembly also includes a threaded rod 205 and a handle 206. The threaded rod 205 is located on the inner side of the threaded tube 204, and the handle 206 is located at one end of the threaded rod 205. The threaded rod 205 and the threaded tube 204 are threadedly connected. It also includes a positioning groove 207. The positioning groove 207 is provided on the lower part of the connecting plate 101. Multiple sets of positioning grooves 207 are evenly distributed in a circle on the lower surface of the connecting plate 101. In use, the connecting plate 101 can be rotated by rotating the bearing 202. The rotation of the connecting plate 101 can select the shearing structure and adjust the angle of the shearing structure. The threaded rod 205 can be rotated by rotating the handle 206. The rotation of the threaded rod 205 causes the threaded rod 205 to move linearly along the threaded tube 204. The linear movement of the threaded rod 205 inserts one end of the threaded rod 205 into the positioning groove 207 to lock the angle of the shearing structure.

[0023] The drive assembly includes a mounting plate 301 and a pneumatic pump 302. The mounting plate 301 is provided at one end of the pneumatic telescopic rod 1, and the pneumatic pump 302 is provided below the mounting plate 301. The drive assembly also includes a connecting pipe 303. The connecting pipe 303 is provided on one side of the pneumatic pump 302. There are two sets of connecting pipes 303. The two sets of connecting pipes 303 are connected to the pneumatic telescopic rod 1. In use, the pneumatic telescopic rod 1 is driven to extend and retract by starting the pneumatic pump 302.

[0024] When working, first operate the coal mining machine to cut to the predetermined position and then stop the machine. The operator holds the device and aligns the shearing component with the wire mesh to be cut. By adjusting the component, the angle of the fine-tuning bearing 202 is adjusted so that the blade and the wire mesh plane form the best shearing clamp.

[0025] Pressing the control valve of the pneumatic pump 302 starts the device, and compressed air drives the pneumatic telescopic rod 1 to extend instantaneously through the connecting pipe 303; when the second fixed block 106 moves in a straight line, it pulls the arc frame 103 to rotate around the axis of the first fixed block 102 through the second connecting plate 107, and the two sets of shearing blades 104 form a biting motion under the action of the linkage mechanism; when the mesh is completely cut, the control valve is released, and the pneumatic telescopic rod 1 retracts quickly under the action of the internal spring, and the shearing blades 104 open under the dual action of the return spring and the pneumatic thrust, forming a continuous operation capability;

[0026] When encountering inclined coal seams or special support structures, keep the pneumatic pump 302 in a stopped state, loosen the handle 206 to release the lock of the threaded rod 205; rotate the bearing 202 to drive the connecting plate 101 to rotate, and select the preset angle position through the dial indication: align the positioning groove 207 corresponding to the selected angle with the threaded rod 205, and tighten the handle 206 to the preset torque value; start the pneumatic pump 302 to conduct a load test, observe whether the shearing trajectory covers the target mesh area, and make secondary fine adjustments if necessary.

[0027] Through the above steps, the pneumatic telescopic rod 1 extends and retracts, driving the second fixed block 106 to move linearly. The linear movement of the second fixed block 106 pulls the second connecting plate 107, causing the arc frame 103 to rotate. The rotation of the arc frame 103 drives the two sets of shearing blades 104 to rotate. The rotation of the shearing blades 104 allows for rapid mesh cutting. The pneumatic telescopic rod 1 uses compressed air as its power source, making operation simple and reducing the need for additional labor input for cutting and production downtime. It also ensures consistency in cutting coal with staggered blades or in parallel operations, improving work efficiency.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pneumatic rapid cutting device, comprising a pneumatic telescopic rod (1); characterized in that: It also includes a shearing assembly, an adjusting assembly, and a driving assembly. One end of the pneumatic telescopic rod (1) is provided with a shearing assembly, the outside of the pneumatic telescopic rod (1) is provided with an adjusting assembly, and the other end of the pneumatic telescopic rod (1) is provided with a driving assembly. The shearing assembly includes a connecting plate (101), a first fixing block (102), an arc frame (103), a shearing blade (104), a first connecting plate (105), a second fixing block (106), and a second connecting plate (107). The outside of the pneumatic telescopic rod (1) is provided with a connecting plate (101), and the top of the connecting plate (101) is provided with a first fixing block (102). Two sets of the first fixing blocks (102) are provided, and an arc frame (103) is provided on one side of the first fixing block (102). The arc frame (103) and the first fixing block (102) are rotatably connected. A shearing blade (104) is provided at one end of the frame (103). The shearing blade (104) and the arc frame (103) are rotatably connected. A first connecting plate (105) is provided on one side of the shearing blade (104). The first connecting plate (105) connects two sets of shearing blades (104) and is rotatably connected to the two sets of shearing blades (104). A second fixing block (106) is provided at one end of the pneumatic telescopic rod (1). The second fixing block (106) and the pneumatic telescopic rod (1) are rotatably connected. A second connecting plate (107) is provided on one side of the second fixing block (106). There are two sets of second connecting plates (107). The two sets of second connecting plates (107) are located on both sides of the second fixing block (106). The second connecting plates (107) are rotatably connected to the second fixing block (106) and the arc frame (103) respectively.

2. The pneumatic rapid cutting device according to claim 1, characterized in that: The adjustment assembly includes a connecting ring (201) and a bearing (202). The connecting ring (201) is provided on the outside of the pneumatic telescopic rod (1), and the bearing (202) is provided on the outside of the connecting ring (201). The bearing (202) and the connecting ring (201) are rotatably connected.

3. The pneumatic rapid cutting device according to claim 2, characterized in that: The adjustment assembly also includes a fixing plate (203) and a threaded tube (204). The fixing plate (203) is provided on one side of the pneumatic telescopic rod (1), and the threaded tube (204) is provided on one side of the fixing plate (203).

4. A pneumatic rapid cutting device according to claim 3, characterized in that: The adjustment assembly also includes a threaded rod (205) and a handle (206). The threaded rod (205) is provided on the inner side of the threaded tube (204), and a handle (206) is provided at one end of the threaded rod (205). The threaded rod (205) and the threaded tube (204) are threadedly connected.

5. A pneumatic rapid cutting device according to claim 4, characterized in that: The adjustment assembly also includes a positioning groove (207). The positioning groove (207) is provided below the connecting plate (101). There are multiple sets of positioning grooves (207), and the multiple sets of positioning grooves (207) are evenly distributed in a circle on the lower surface of the connecting plate (101).

6. The pneumatic rapid cutting device according to claim 1, characterized in that: The drive assembly includes a mounting plate (301) and a pneumatic pump (302). The mounting plate (301) is provided at one end of the pneumatic telescopic rod (1), and the pneumatic pump (302) is provided below the mounting plate (301).

7. A pneumatic rapid cutting device according to claim 6, characterized in that: The drive assembly also includes a connecting pipe (303). A connecting pipe (303) is provided on one side of the pneumatic pump (302). There are two sets of connecting pipes (303), and the two sets of connecting pipes (303) are connected to the pneumatic telescopic rod (1).

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