Novel belt press cutter

Abstract

This utility model relates to a novel belt shearing device. The novel belt shearing device includes an upper crossbar, a lower crossbar, an upper gate, a lower gate, and two bolts. Connecting blocks are provided at both ends of the upper and lower crossbars, and vertical through holes are formed on the connecting blocks. The vertical through holes at both ends of the upper and lower crossbars are vertically aligned, and each block is fitted with a bolt. N transverse threaded through holes are formed on both the upper and lower crossbars. N stepped through holes are formed on both the upper and lower gates. The stepped through holes on the upper gate are aligned one-to-one with the transverse threaded through holes on the upper crossbar, and each through hole is fitted with a screw. The stepped through holes on the lower gate are aligned one-to-one with the transverse threaded through holes on the lower crossbar, and each through hole is fitted with a screw. The exposed surfaces of the upper and lower gates form shearing surfaces. This novel belt shearing device has a simple structure, is easy to use, and is suitable for use in coal mines and other industrial and mining enterprises that require belt conveyors.

Description

Technical Field

[0001] This utility model relates to a novel belt cutter. Background Technology

[0002] Previously, before the conveyor belt was connected at the tunneling face, it was cut manually with a utility knife, which required two people to cut it. This method was unsafe, easily caused skin abrasions, and was inefficient, failing to achieve fast, safe and effective construction. Under the current situation of limited manpower, it resulted in a waste of manpower. Moreover, manual cutting of the conveyor belt could easily cause the belt connection to be crooked and the belt to run off track.

[0003] Chinese utility model patent CN2877997Y, published on March 14, 2007, discloses an underground steel cord conveyor belt cutting machine. It consists of a belt fixing device, a cutting device, and a blade holder moving device. The belt fixing device comprises a base, an upper plate, and belt clamping bolts, with the upper plate and base connected by bolts. The cutting device consists of a motor, a transmission belt, a saw blade, a limit switch, a handle, and a frame. The blade holder moving device consists of a transmission screw, a handwheel, and a guide rail. This cutting machine uses an electric motor to drive the saw blade to cut the steel cord conveyor belt. However, this design has high explosion-proof requirements, and the saw blade easily generates sparks when cutting the steel cord, making it unsuitable for use in underground coal mines with explosion-proof requirements.

[0004] Chinese utility model patent CN2877997Y, published on December 19, 2009, discloses a steel cable belt cutting machine, mainly composed of a blade holder, frame, base, and pressing bolts. The blade holder consists of a slotted box, driven sprocket, driving sprocket, chain, blade holder and cutting tool, motor, gearbox, and feed device. The feed device comprises two columns on the frame and a feed handwheel; the slotted box of the blade holder is mounted on the two columns, with the columns serving as vertical slides; a lead screw section is located on the column, and the feed handwheel is mounted on the lead screw section; rotating the feed handwheel allows it to move up and down along the column, thus moving the blade holder together. This cutting machine uses a chain to drive the cutting tool to cut the steel cable belt, resulting in high cutting resistance, complex structure, and inconvenient installation. Summary of the Invention

[0005] The technical problem to be solved by this utility model is how to overcome the above-mentioned defects of the prior art and provide a new type of belt cutter.

[0006] To solve the above-mentioned technical problems, this novel belt cutter is characterized by comprising an upper crossbar, a lower crossbar, an upper blade, a lower blade, and two bolts. Connecting blocks are provided at both ends of the upper and lower crossbars, and vertical through holes are opened on the connecting blocks. The vertical through holes at both ends of the upper and lower crossbars are vertically opposite each other. The two bolts are respectively inserted into the vertically opposite vertical through holes. N transverse threaded through holes are opened on the upper and lower crossbars respectively. N stepped through holes are opened on the upper and lower blades respectively. The stepped through holes on the upper blade are aligned one-to-one with the transverse threaded through holes on the upper crossbar, and each is fitted with a screw to fix the upper blade to the upper crossbar. The stepped through holes on the lower blade are aligned one-to-one with the transverse threaded through holes on the lower crossbar, and each is fitted with a screw to fix the lower blade to the lower crossbar. The exposed surfaces of the upper and lower blades form a shearing surface, where N is a positive integer and 3≤N≤9.

[0007] The upper and lower crossbars can be made of ordinary steel, while the upper and lower knife gates are preferably made of alloy materials with high hardness.

[0008] When using this device, place the belt to be cut between the upper and lower blades, as follows: Figure 5 As shown, by tightening the bolts on both sides with a manual or pneumatic wrench, the exposed sides of the upper and lower gate blades can be moved up and down alternately to cut the belt to be cut. This design ensures that no sparks are generated during the cutting process, making it safer.

[0009] As an optimization, the vertical through holes at one end of the upper and lower crossbars are elongated slots. In use, the nuts on one side of the bolts can be tightened first, causing the upper and lower blades on that side to stagger and cut the belt to be cut on that side. Then, the nuts on the other side of the bolts can be tightened, causing the upper and lower blades on that side to stagger and cut the belt to be cut on that side. This design is convenient, labor-saving, and has low resistance.

[0010] As an optimization, it also includes a pneumatic motor with a nut sleeve on its output shaft, which can be fitted onto the nut of the bolt. With this design, the pneumatic motor and the nut sleeve constitute a pneumatic wrench (commonly known as an air wrench in auto repair shops), which can be driven by high-pressure air from underground, eliminating the need for a motor and reducing explosion-proof requirements.

[0011] This novel belt cutter has a simple structure and is easy to use, making it suitable for use in coal mines and other industrial and mining enterprises that require belt conveyors. Attached Figure Description

[0012] The novel belt cutter of this utility model will be further described below with reference to the accompanying drawings:

[0013] Figure 1This is a three-dimensional structural diagram of the lower crossbar, lower blade, and screw in Embodiment 1 of this novel belt cutter (the three-dimensional structural diagram of the upper crossbar, upper blade, and screw is shown below). Figure 1 (Structural similarity);

[0014] Figure 2 yes Figure 1 The diagram shows the exploded disassembly of the lower crossbar, lower gate, and screw.

[0015] Figure 3 This is a three-dimensional structural schematic diagram of Embodiment 1 of the novel belt cutter;

[0016] Figure 4 yes Figure 3 The diagram shows an exploded disassembly of the novel belt cutter.

[0017] Figure 5 This is a three-dimensional structural diagram of the first embodiment of the new belt cutter in use.

[0018] In the diagram: 1 is the upper crossbar, 2 is the lower crossbar, 3 is the upper knife gate, 4 is the lower knife gate, 5 is the bolt, 51 is the nut, 6 is the connecting block, 7 is the vertical through hole, 8 is the horizontal threaded through hole, 9 is the stepped through hole, 10 is the screw, 11 is the belt to be cut, and 12 is the steel core inside the belt. Detailed Implementation

[0019] Implementation method one: such as Figure 1-5 As shown, this novel belt cutter includes an upper crossbar 1, a lower crossbar 2, an upper blade 3, a lower blade 4, and two bolts 5. Connecting blocks 6 are provided at both ends of the upper crossbar 1 and the lower crossbar 2. Vertical through holes 7 are formed on the connecting blocks 6, which are vertically aligned. The two bolts 5 are respectively inserted into the vertically aligned vertical through holes 7. The upper crossbar 1 and the lower crossbar 2 each have N transverse threaded through holes 8. The upper blade 3 and the lower blade 4 each have N stepped through holes 9. The stepped through holes 9 on the upper blade 3 are aligned one-to-one with the transverse threaded through holes 8 on the upper crossbar 1, and each is fitted with a screw 10 to fix the upper blade 3 to the upper crossbar 1. The stepped through holes 9 on the lower blade 4 are aligned one-to-one with the transverse threaded through holes 8 on the lower crossbar 2, and each is fitted with a screw 10 to fix the lower blade 4 to the lower crossbar 2. The exposed side of the upper switch 3 and the exposed side of the lower switch 4 form a shearing surface, where N is a positive integer and 3≤N≤9. Figure 1-5 In this case, N is 7.

[0020] The vertical through hole 7 at one end of the upper crossbar 1 and the lower crossbar 2 is a long slot hole.

[0021] Implementation method 2: It also includes a wind-driven motor, the output shaft of which is provided with a nut sleeve, which can be fitted onto the nut 51 of the bolt 5. The remaining structure is as described in implementation method 1, and the figure is omitted.

Claims

1. A novel belt cutter, characterized in that: The device includes an upper crossbar, a lower crossbar, an upper knife gate, a lower knife gate, and two bolts. Connecting blocks are provided at both ends of the upper and lower crossbars, and vertical through holes are opened on the connecting blocks. The vertical through holes at both ends of the upper and lower crossbars are vertically aligned. The two bolts are respectively inserted into the vertically aligned vertical through holes. N transverse threaded through holes are opened on the upper and lower crossbars respectively. N stepped through holes are opened on the upper and lower knife gates respectively. The stepped through holes on the upper knife gate are aligned one-to-one with the transverse threaded through holes on the upper crossbar, and each is fitted with a screw to fix the upper knife gate to the upper crossbar. The stepped through holes on the lower knife gate are aligned one-to-one with the transverse threaded through holes on the lower crossbar, and each is fitted with a screw to fix the lower knife gate to the lower crossbar. The exposed surfaces of the upper and lower knife gates form a shear surface. N is a positive integer, and 3 ≤ N ≤ 9.

2. The novel belt cutter according to claim 1, characterized in that: The vertical through holes at one end of the upper and lower crossbars are elongated slots.

3. The novel belt cutter according to claim 1, characterized in that: It also includes a wind-driven motor, the output shaft of which is equipped with a nut sleeve that can be fitted onto the nut of the bolt.

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