Tear detection device in belt operation process

Abstract

The utility model discloses a tearing detection device in a belt running process, belongs to the technical field of belt conveyor equipment, and is used for carrying out tearing detection and alarming on a running belt. According to the technical scheme, a detection cross rod is located below a belt, the U-shaped detection cross rod is matched with the bottom of the belt in shape, the lower portion of the detection cross rod is connected with a rotating shaft in a welded mode through two vertical connecting rods, the rotating shaft is parallel to the detection cross rod, and the two ends of the rotating shaft are rotationally connected with shaft sleeves respectively; the two shaft sleeves are fixed to a machine frame of the belt conveyor, the trigger iron is welded to one end of the rotating shaft, the front end of the trigger iron is opposite to the signal switch, the signal switch is fixed to the machine frame of the belt conveyor, and the receiving hopper and the counter weight frame are welded to the two sides of the rotating shaft respectively. And the material receiving hopper and the counterweight frame respectively generate rotating torque to enable the rotating shaft to rotate clockwise and anticlockwise. The belt tearing detection device is simple in structure and sensitive in detection, and belt tearing can be detected in two modes that materials penetrate through the belt and the belt is torn and leaks.

Description

Technical Field

[0001] The utility model relates to a device for detecting the tearing of a belt during the operation of a belt conveyor, belonging to the technical field of belt conveyor equipment. Background Art

[0002] The belt conveyor is mainly used to transport materials from one place to another. The belt conveyor is suitable for the transportation of various materials, including coal, ore, cement, chemical fertilizer, glass, sand, gravel, etc. During the operation of the belt conveyor, the belt often tears. Since the materials contain large objects inside, when they fall, they often smash holes in the belt and then cause tearing. Sometimes there are sharp objects such as iron in the materials, which can penetrate the belt. Holes appear in the belt and then the materials will flow out from the holes. At present, the existing tearing detection is at the tail of the belt conveyor, mainly detecting the edge frayed edges of the belt conveyor. It is impossible to detect whether the belt tears and leaks materials at the blanking outlet. For the situation where the belt tears and causes the belt to leak materials, it cannot alarm and stop the machine. Therefore, it is necessary to design a tearing detection device during the operation of the belt to detect the tearing caused by the impact of materials in time during the operation of the belt. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a tearing detection device during the operation of the belt. This tearing detection device can detect the tearing of the belt during the operation of the belt, timely discover the damage of the belt, avoid the further expansion of the belt damage, and reduce the maintenance cost of the belt.

[0004] The technical solution to solve the above technical problem is:

[0005] A tearing detection device during the operation of the belt, which includes a detection cross bar, a vertical connecting rod, a rotating shaft, a shaft sleeve, a trigger iron, a signal switch, a receiving hopper, and a counterweight frame. The detection cross bar is located below the belt, and the length direction of the detection cross bar is perpendicular to the running direction of the belt. Two vertical connecting rods are welded to the lower ends of both ends of the detection cross bar. The rotating shaft is welded to the lower end of the vertical connecting rod, and the rotating shaft is parallel to the detection cross bar. The two ends of the rotating shaft are respectively rotatably connected to the shaft sleeves, and the two shaft sleeves are respectively fixed on the frame of the belt conveyor. The trigger iron is vertically welded to one end of the rotating shaft, and the front end of the trigger iron faces the signal switch. The signal switch is fixed on the frame of the belt conveyor, and the signal switch is connected to the alarm device through a wire. A receiving hopper and a counterweight frame are respectively welded on both sides of the rotating shaft. The receiving hopper and the counterweight frame are respectively located in the incoming material direction of the forward direction of the belt operation, and the receiving hopper and the counterweight frame respectively generate the rotational torques that cause the rotating shaft to rotate clockwise and counterclockwise.

[0006] The above-mentioned tearing detection device during the operation of the belt, the detection cross bar is a U-shaped with both sides inclined outward, and the shape of the U-shaped matches the shape of the bottom of the belt. The distance between the rod body of the detection cross bar and the bottom of the belt is 20mm - 30mm.

[0007] The above-mentioned tearing detection device during the operation of the belt, the receiving hopper is a rectangular box, the receiving hopper is placed horizontally, the front end of the receiving hopper is welded to one side of the rotating shaft facing the advancing direction of the belt, the included angle between the bottom plane of the receiving hopper and the vertical connecting rod is 90 degrees, and the bottom plane of the receiving hopper is parallel and opposite to the lower surface of the belt.

[0008] The above-mentioned tearing detection device during the operation of the belt, the counterweight frame is a rectangular plate, the counterweight frame is placed horizontally, the rear end of the rectangular plate of the counterweight frame is vertically welded to the middle part of one side of the rotating shaft facing the incoming material direction of the belt, a counterweight block is assembled at the front end of the counterweight frame, and the counterweight frame and the counterweight block are detachably connected.

[0009] The above-mentioned tearing detection device during the operation of the belt, it also has a stop bar, the stop bar is located on one side of the rotating shaft in the incoming material direction of the belt, the lower end of the stop bar is vertically welded to the frame of the belt conveyor, the stop bar is parallel to the vertical connecting rod, and one end of the rotating shaft opposite to the stop bar has an L-shaped bend, the plane of the L-shaped bend is a vertical plane, and the upper horizontal rod of the L-shaped bend contacts the front side of the stop bar.

[0010] The beneficial effects of the present utility model are:

[0011] The detection cross bar of the present utility model is located below the belt, an object penetrating the belt can push the detection cross bar forward, the detection cross bar drives the rotating shaft to rotate clockwise through the vertical connecting rod, the trigger iron at the front end of the rotating shaft disengages from the signal switch, and the signal switch issues an alarm signal for belt tearing; when the belt tears and generates a crack, the material falls into the receiving hopper from the tear, the torque of the receiving hopper increases, driving the rotating shaft to rotate clockwise, and the signal switch can also be alarmed.

[0012] The structure of the present utility model is simple, the reaction is sensitive, and the maintenance is convenient. It can detect the belt by detecting two ways of material penetrating the belt and belt tearing and leaking material during the operation of the belt, can timely detect belt damage, avoid serious tearing of the belt, and reduce the maintenance cost of the belt. Brief Description of the Drawings

[0013] Figure 1 is the structural schematic diagram of the present utility model;

[0014] Figure 2 is Figure 1 Top view;

[0015] Figure 3 is Figure 1 Right view;

[0016] The reference numerals in the figure are as follows: belt 1, detection cross bar 2, vertical connecting rod 3, rotating shaft 4, shaft sleeve 5, trigger iron 6, signal switch 7, receiving hopper 8, counterweight frame 9, counterweight 10, and stop bar 11. Specific implementation manner

[0017] The utility model is composed of a detection cross bar 2, a vertical connecting rod 3, a rotating shaft 4, a shaft sleeve 5, a trigger iron 6, a signal switch 7, a receiving hopper 8, a counterweight frame 9, a counterweight 10, and a stop bar 11.

[0018] As shown in the figure, the detection cross bar 2 is located below the belt 1. The length direction of the detection cross bar 2 is perpendicular to the running direction of the belt 1. The detection cross bar 2 is a U-shaped with both sides inclined outward. The shape of the U-shaped matches the bottom shape of the belt 1. The distance between the rod body of the detection cross bar 2 and the bottom of the belt 1 is 20 mm - 30 mm.

[0019] As shown in the figure, two vertical connecting rods 3 are welded to the lower ends of both sides of the detection cross bar. The two vertical connecting rods 3 are parallel. Under normal circumstances, the two vertical connecting rods 3 are in a vertical position.

[0020] As shown in the figure, the rotating shaft 4 is welded and connected to the lower end of the vertical connecting rod 3. The rotating shaft 4 is parallel to the detection cross bar 2. The two ends of the rotating shaft 4 are respectively rotatably connected to the shaft sleeves 5. The two shaft sleeves 5 are respectively fixed on the frame of the belt conveyor.

[0021] As shown in the figure, a trigger iron 6 is vertically welded to one end of the rotating shaft 4. The trigger iron 6 is parallel to the vertical connecting rod 3. The front end of the trigger iron 6 faces the signal switch 7. The signal switch 7 is fixed on the frame of the belt conveyor. The signal switch 7 is connected to the alarm device through a wire. When the rotating shaft 4 is in the normal position, the trigger iron 6 faces the signal switch 7; when the rotating shaft 4 rotates, the trigger iron 6 separates from the signal switch 7, and the signal switch 7 emits an alarm signal.

[0022] As shown in the figure, a receiving hopper 8 and a counterweight frame 9 are respectively welded on both sides of the rotating shaft 4. The receiving hopper 8 and the counterweight frame 9 are respectively located in the forward direction and the incoming material direction of the running of the belt 1. The torque generated by the receiving hopper 8 and the counterweight frame 9 can cause the rotating shaft 4 to rotate clockwise and counterclockwise.

[0023] As shown in the figure, the receiving hopper 8 is a rectangular box. The receiving hopper 8 is horizontally placed. The front end of the receiving hopper 8 is welded to one side of the rotating shaft 4 facing the forward direction of the belt 1. The included angle between the bottom plane of the receiving hopper 8 and the vertical connecting rod 3 is 90 degrees. The bottom plane of the receiving hopper 8 is parallel and opposite to the lower surface of the belt 1. The receiving hopper 8 is used to receive the materials falling from the damaged opening of the belt.

[0024] As shown in the figure, the counterweight frame 9 is a rectangular plate, which is placed horizontally. The rear end of the rectangular plate of the counterweight frame 9 is vertically welded to the middle part of the rotating shaft 4 on the side facing the incoming direction of the belt 1. The front end of the counterweight frame 9 is equipped with a counterweight block 10. The counterweight frame 9 and the counterweight block 10 are detachably connected. The gravity of the counterweight frame 9 and the counterweight block 10 together constitute the rotational torque. The rotational torque of the counterweight frame 9 can be adjusted by adjusting the counterweight block 10.

[0025] The figure shows that a stopper 11 is provided on one side of the rotating shaft 4 in the direction of the belt 1. The lower end of the stopper 11 is vertically welded to the frame of the belt conveyor, and the stopper 11 is parallel to the vertical connecting rod 3. The end of the rotating shaft 4 opposite to the stopper 11 has an L-shaped bend, the L-shaped bend plane is a vertical plane, and the upper horizontal rod of the L-shaped bend contacts the front side of the spring stopper 11.

[0026] During operation, the torque of the counterweight frame 9 and the counterweight block 10 can make the rotating shaft 4 rotate counterclockwise, driving the vertical connecting rod 3 and the cross bar 2 to tilt to the rear of the belt, and the signal switch 8 will sound an alarm. In order to prevent this from happening under normal circumstances, the blocking rod 11 can block the rotation of the rotating shaft 4 through the L-shaped bend of the rotating shaft 4, so that the vertical connecting rod 3 and the detection cross bar 2 remain in a vertical state. When an object passes through the belt 1 and moves the detection cross bar 2, the detection cross bar 2 drives the rotating shaft 4 to rotate and sound an alarm. When the receiving hopper 8 rotates clockwise, the blocking rod 11 does not play a stopping role, and the sensitivity of the rotation of the receiving hopper 8 can be set by adjusting the weight of the counterweight block 10.

[0027] The use process of the utility model is as follows:

[0028] During use, when an object penetrates the belt, the object can move the detection crossbar 2, and the detection crossbar 2 drives the rotating shaft 4 to rotate through the connecting rod 3, so that the trigger iron 6 leaves the signal switch 7, generating a tear alarm; or the material is scattered through the belt tear and falls into the receiving hopper 8. The increase in the weight of the material in the receiving hopper 8 drives the rotating shaft 4 to rotate, so that the trigger iron 6 leaves the signal switch 7, generating a tear alarm. This device can detect belt tearing by detecting material penetration and belt leakage during operation. It has a simple structure, is easy to maintain, and reduces serious belt tearing.

[0029] An embodiment of the present utility model is as follows:

[0030] The total length of the detection crossbar 2 is 2200 mm and the diameter is 25 mm;

[0031] The length of the vertical connecting rod 3 is 660 mm and the diameter is 25 mm;

[0032] The length of the rotating shaft 4 is 2500 mm and the diameter is 25 mm;

[0033] The bushing 5 is of the model UCP205;

[0034] The signal switch 7 is of the model JS30-15PK;

[0035] The receiving hopper 8 has a length of 1460 mm, a width of 450 mm, and a height of 50 mm;

[0036] The counterweight frame 9 has a length of 300 mm, a width of 100 mm, and a thickness of 10 mm, and the counterweight 10 weighs 3 KG;

[0037] The diameter of the retaining rod 11 is 25 mm and the length is 200 mm.

Claims

1. A tearing detection device during the operation of a belt, characterized in that: It includes a detection cross bar (2), a vertical connecting rod (3), a rotating shaft (4), a shaft sleeve (5), a trigger iron (6), a signal switch (7), a material receiving hopper (8), and a counterweight frame (9). The detection cross bar (2) is located below the belt (1), and the length direction of the detection cross bar (2) is perpendicular to the running direction of the belt (1). Two vertical connecting rods (3) are welded to the lower ends of both sides of the detection cross bar (2). The rotating shaft (4) is welded and connected to the lower end of the vertical connecting rod (3), and the rotating shaft (4) is parallel to the detection cross bar (2). The two ends of the rotating shaft (4) are respectively rotatably connected to the shaft sleeves (5), and the two shaft sleeves (5) are respectively fixed on the frame of the belt conveyor. The trigger iron (6) is vertically welded to one end of the rotating shaft (4), and the front end of the trigger iron (6) faces the signal switch (7). The signal switch (7) is fixed on the frame of the belt conveyor, and the signal switch (7) is connected to the alarm device through a wire. The material receiving hopper (8) and the counterweight frame (9) are respectively welded on both sides of the rotating shaft (4). The material receiving hopper (8) and the counterweight frame (9) are respectively located in the forward direction and the incoming material direction of the running belt (1). The material receiving hopper (8) and the counterweight frame (9) respectively generate clockwise and counterclockwise rotation torques that cause the rotating shaft (4) to rotate.

2. The tearing detection device during the operation of the belt according to claim 1, wherein: The detection cross bar (2) is a U-shaped with both sides inclined outward, and the U-shaped shape matches the bottom shape of the belt (1). The distance between the rod body of the detection cross bar (2) and the bottom of the belt (1) is 20 mm - 30 mm.

3. The tear detection device during the operation of the belt according to claim 1, characterized in that: The material receiving hopper (8) is a rectangular box, and the material receiving hopper (8) is horizontally placed. The front end of the material receiving hopper (8) is welded to the side of the rotating shaft (4) facing the forward direction of the belt (1). The included angle between the bottom plane of the material receiving hopper (8) and the vertical connecting rod (3) is 90 degrees, and the bottom plane of the material receiving hopper (8) is parallel and opposite to the lower surface of the belt (1).

4. The tearing detection device during the operation of the belt according to claim 1, characterized in that: The counterweight frame (9) is a rectangular plate, and the counterweight frame (9) is horizontally placed. The rear end of the rectangular plate of the counterweight frame (9) is vertically welded to the middle part of the side of the rotating shaft (4) facing the incoming material direction of the belt (1). A counterweight block (10) is assembled at the front end of the counterweight frame (9), and the counterweight frame (9) and the counterweight block (10) are detachably connected.

5. The tearing detection device during the operation of the belt according to claim 1, wherein: It also has a stop bar (11). The stop bar (11) is located on the side of the rotating shaft (4) in the incoming material direction of the belt. The lower end of the stop bar (11) is vertically welded to the frame of the belt conveyor. The stop bar (11) is parallel to the vertical connecting rod (3). One end of the rotating shaft (4) opposite to the stop bar (11) has an L-shaped bend, the L-shaped bend plane is a vertical plane, and the upper horizontal bar of the L-shaped bend contacts the front side of the stop bar (11).

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