Bulk terminal belt conveyor with anti-tear device

Abstract

The utility model discloses a bulk cargo wharf belt conveyor with prevent tearing device relates to the field of belt conveying equipment, including frame, receiving material belt conveyor, be provided with the machine head hopper on the receiving material conveying belt of this receiving material belt conveyor, be provided with the receiving material belt conveyor on this machine head hopper upper hopper connection blanking belt conveyor, receiving material belt conveyor has the multiple sets of conveyer rollers that are evenly set along the length direction of frame and is located on the multiple sets of conveyer rollers and has receiving material conveying belt, still includes several groups of the opposite type photoelectric switch, the transmitter of opposite type photoelectric switch is symmetrically installed in the both sides of the frame at the tail of receiving material conveying belt and is perpendicular to the frame, and the receiver is installed to the opposite receiving material conveying belt face directly above the transmitter, compared with prior art, this application can monitor the edge state of belt in real time, and the anti -interference ability is strong, when the edge is retracted when the belt tearing leads, photoelectric switch triggers immediately, avoids tearing to enlarge, and the reliability is better, and it is not easy to cause the malfunction because of the accumulation of materials.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor equipment technology, and in particular to a bulk cargo terminal belt conveyor with an anti-tear device. Background Technology

[0002] Belt conveyors are indispensable core material conveying equipment in the production and operation of bulk cargo terminals, mainly responsible for the transfer of bulk cargo such as ore and coal from the unloading point to the subsequent storage yard. Due to limitations such as site conditions and production processes, belt conveyors are mostly single-unit series devices. Once damaged or malfunctioning, it will directly lead to the interruption of the production and operation of the entire bulk cargo terminal berth.

[0003] In actual operations, belt tearing accidents occur frequently. The main causes include: scratches from long, sharp objects mixed in with the unloading material, scrapes caused by detached parts of the equipment, and impacts from sharp edges of materials such as lump ore or bauxite. Among these, longitudinal tearing is the most common type—in minor cases, it only causes surface damage to the belt, while in severe cases, it can lead to the entire belt cracking completely along the longitudinal direction, resulting in prolonged shutdowns at the dock.

[0004] Traditional belt tear prevention devices rely on physical sensing principles, monitoring the belt by laying steel cables or trays at its base. When a tear occurs, material leaks from the crack into the tray, triggering limit switches and other electrical sensors, causing the device to start and stop the belt. However, this physical sensing method has significant limitations in dock environments: firstly, docks often experience severe weather such as strong winds and heavy rains, which can easily lead to malfunctions and frequent belt shutdowns; secondly, if the belt's sag after a tear does not reach the trigger threshold, the device is unlikely to start effectively, severely impacting its monitoring reliability. Utility Model Content

[0005] This invention provides a bulk cargo terminal belt conveyor with an anti-tear device, which can solve the problems of false alarms and low monitoring reliability of existing belt anti-tear devices.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: This bulk cargo terminal belt conveyor with an anti-tear device includes a frame, a receiving belt conveyor installed in the frame, a head funnel above the receiving conveyor belt, and a discharge belt conveyor connected to the upper part of the head funnel. The receiving belt conveyor has multiple sets of conveyor rollers evenly arranged along the length of the frame and the receiving conveyor belt located on the multiple sets of conveyor rollers. It also includes several sets of through-beam photoelectric switches. The transmitters of the through-beam photoelectric switches are symmetrically installed on both sides of the frame at the tail of the receiving conveyor belt and perpendicular to the frame. The receivers are installed directly above the receiving conveyor belt surface opposite the transmitters. The vertical projection of the transmitters and receivers of the through-beam photoelectric switches is located 5-8 mm on the inner end face of the outer sides of the receiving conveyor belt surface.

[0007] In the above-mentioned technical solution for the bulk cargo terminal belt conveyor with anti-tear device, a more specific technical solution can also be: the through-beam photoelectric switch is communicatively connected to the belt motion control module. When the receiving conveyor belt is torn and the belt surface shrinks as a whole, the receivers of the through-beam photoelectric switches on both sides of the receiving conveyor belt receive the signal from the transmitter, the through-beam photoelectric switch generates a switching signal, and the belt motion control module simultaneously receives the switching signals from both sides of the receiving conveyor belt and controls the receiving conveyor belt to stop moving.

[0008] In some possible implementations, the through-beam photoelectric switch is also communicatively connected to a belt misalignment alarm module. When the belt misalignment alarm module receives a switching signal from only one side of the through-beam photoelectric switch, it issues a belt misalignment alarm. The belt misalignment alarm module is also equipped with a corresponding belt misalignment adjustment device.

[0009] In some possible implementations, the deviation adjustment device includes a first adjustment flap and a first power cylinder. The first adjustment flap is disposed in the upper funnel of the machine head funnel opposite the material discharge end of the discharge belt conveyor. The front of the first adjustment flap faces the material discharge end of the discharge belt conveyor. The upper end of the first adjustment flap is hinged to the wall of the machine head funnel, and the lower end is a free end. The back of the first adjustment flap is connected to the first power cylinder.

[0010] In some possible implementations, the deviation adjustment device includes a second adjustment flap, a third adjustment flap, a second power cylinder, and a third power cylinder. The second adjustment flap and the third adjustment flap are respectively hinged to both sides of the receiving conveyor belt in the lower part of the funnel of the machine head, and the lower back of the second adjustment flap and the third adjustment flap are respectively connected to the second power cylinder and the third power cylinder.

[0011] In some possible implementations, the deviation adjustment device further includes a second adjustment flap, a third adjustment flap, a second power cylinder, and a third power cylinder. The second adjustment flap and the third adjustment flap are respectively hinged to both sides of the receiving conveyor belt in the lower part of the funnel of the machine head, and the lower back of the second adjustment flap and the third adjustment flap are respectively connected to the second power cylinder and the third power cylinder.

[0012] In some possible implementations, the cylinder bodies of the second power cylinder and the third power cylinder are each fixed to the corresponding side of the frame, and the lower back sections of the second and third adjusting flaps are respectively connected to the telescopic rods of the power cylinders.

[0013] In some possible implementations, the cylinder body of the first power cylinder is fixed to the outer wall of the upper part of the funnel of the machine head, the cylinder bodies of the second power cylinder and the third power cylinder are respectively fixed to the corresponding side of the frame, the lower back of the second adjusting flap and the third adjusting flap are respectively connected to the telescopic rod of the power cylinder, and the back of the first adjusting flap is connected to the telescopic rod of the first power cylinder.

[0014] In some possible implementations, the through-beam photoelectric switch is an infrared through-beam switch.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: 1. By using symmetrically arranged through-beam photoelectric switches on the frame at the tail of the receiving conveyor belt, the condition of the belt edge can be monitored in real time, and the anti-interference ability is strong. When the belt tears and the edge shrinks inward, the photoelectric switch is triggered immediately to prevent the tear from spreading. The reliability is better and it is less likely to cause malfunction due to material accumulation. Compared with the steel cable anti-tear device, the effectiveness is more guaranteed. Once a serious tear occurs in the conveyor belt and the conveyor belt overlaps, the through-beam photoelectric switch will be triggered to control the shutdown. Under harsh working conditions such as wet materials, this application can avoid the device from malfunctioning and affecting production, and can improve the production efficiency of the belt conveyor by about 10%.

[0016] 2. The vertical projection of the transmitter and receiver is located 5-8mm on the inner end face of the outer sides of the belt surface, which ensures detection sensitivity and prevents false alarms caused by normal belt vibration.

[0017] 3. Since the through-beam photoelectric switch is also connected to the belt misalignment alarm module, the belt misalignment alarm module can detect belt misalignment through the photoelectric switch signal on one side, realize early warning, and avoid problems such as belt wear and material spillage caused by misalignment; the belt misalignment alarm module is linked with the belt misalignment adjustment device to realize automatic correction of misalignment and improve the stability of the conveyor system.

[0018] 4. The first adjusting flap adjusts the angle via a power cylinder, buffering the impact of materials and reducing direct impact on the receiving conveyor belt, thus extending belt life. The second and third adjusting flaps can adjust the material drop width and position, ensuring that the material is evenly distributed on the receiving conveyor belt, reducing the risk of deviation and tearing caused by unilateral force.

[0019] 5. Integrating tear detection, deviation alarm, and material drop adjustment into the same system enables multi-dimensional protection and improves the overall reliability of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the side structure of this utility model.

[0022] Figure 3 This is a diagram showing the normal operation of the belt conveyor of this utility model.

[0023] Figure 4 This is a schematic diagram of the tearing structure of the belt conveyor of this utility model.

[0024] Figure 5 This is a schematic diagram of the belt conveyor misalignment structure of this utility model.

[0025] Figure 6 This is a control block diagram of the present invention.

[0026] Explanation of markings in the diagram: 1. Transmitter; 2. Receiver; 3. Drop conveyor belt; 4. Receiving conveyor belt, 4-1. Conveyor roller, 4-2. Receiving belt; 5. First adjusting flap; 6. First power cylinder, 6-1. First power cylinder body, 6-2. First power cylinder telescopic rod; 7. Second adjusting flap; 8. Second power cylinder, 8-1. Second power cylinder body, 8-2. Second power cylinder telescopic rod; 9. Third adjusting flap; 10. Third power cylinder, 10-1. Third power cylinder body, 10-2. Third power cylinder telescopic rod; 11. Frame; 12. Upper funnel; 13. Lower funnel; 14. Transverse connecting rod. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] like Figures 1-3 The embodiment shown in Embodiment 1 proposes a bulk cargo terminal belt conveyor with an anti-tear device, including a frame 11, a receiving belt conveyor 4 installed within the frame, a head funnel above the receiving conveyor belt 4-2 of the receiving belt conveyor, and a dropping belt conveyor 3 connected to the upper funnel 12 of the head funnel. The receiving belt conveyor 4 has multiple sets of conveyor rollers 4-1 evenly arranged along the length of the frame 11 and a receiving conveyor belt 4-2 located on the multiple sets of conveyor rollers 4-1, and also includes several sets of through-beam photoelectric sensors. The transmitter 1 of the through-beam photoelectric switch is symmetrically mounted on both sides of the frame 1 at the tail of the receiving conveyor belt 4-2 and perpendicular to the frame 1. The receiver 2 is mounted directly above the receiving conveyor belt surface opposite to the transmitter 1. The receiver 2 extends to the receiving belt 4-2 through a transverse connecting rod 14 mounted on the frame 1. The vertical projection of the transmitter 1 and receiver 2 of the through-beam photoelectric switch is located 5~8mm on the inner end face of the outer side of the receiving conveyor belt surface. This vertical projection position ensures detection sensitivity and prevents false alarms caused by normal belt vibration.

[0030] like Figure 4 and Figure 6 As shown, the through-beam photoelectric switch is connected to the belt motion control module. When the receiving conveyor belt tears and the belt surface shrinks inward, the receivers of the through-beam photoelectric switches on both sides of the receiving conveyor belt receive the signal from the transmitter. The through-beam photoelectric switches generate a switching signal. The belt motion control module receives the switching signals from both sides of the receiving conveyor belt and controls the receiving conveyor belt to stop moving, reducing the risk of material leakage and equipment damage, and lowering maintenance costs.

[0031] like Figure 5 and Figure 6 As shown, the through-beam photoelectric switch is also connected to the belt misalignment alarm module. When the belt misalignment alarm module receives a switching signal from the through-beam photoelectric switch on only one side, it will issue a belt misalignment alarm. The belt misalignment alarm module is also equipped with a corresponding misalignment adjustment device. The belt misalignment alarm module judges the belt misalignment by the signal from the photoelectric switch on one side, realizes early warning, and avoids problems such as belt wear and material spillage caused by misalignment.

[0032] like Figure 1 As shown, the deviation adjustment device includes a first adjusting flap 5 and a first power cylinder 6. The first adjusting flap is located in the upper funnel 12 of the machine head funnel, opposite the material discharge end of the discharge belt conveyor 3. The front of the first adjusting flap 5 faces the material discharge end of the discharge belt conveyor. The first adjusting flap is a bent plate. Its upper end 5-1 is hinged to the wall of the machine head funnel, and its lower end is a free end. The back of the first adjusting flap 5 is connected to the first power cylinder 6. The cylinder body 6-1 of the first power cylinder is on the outer wall of the upper funnel 12. The back of the first adjusting flap 5 is connected to the telescopic rod 6-2 of the first power cylinder. The angle of the first adjusting flap is adjusted by the extension and retraction of the power cylinder, which buffers the impact force of the material, reduces the direct impact on the conveyor belt, and extends the service life of the conveyor belt.

[0033] The deviation adjustment device also includes a second adjusting flap 7, a third adjusting flap 9, a second power cylinder 8, and a third power cylinder 10. The second adjusting flap 7 and the third adjusting flap 9 are hinged to both sides of the receiving conveyor belt 4-2 along the length direction inside the lower funnel 13 of the machine head funnel. The lower back of the second adjusting flap 7 and the third adjusting flap 9 are connected to the second power cylinder 8 and the third power cylinder 10, respectively. The cylinder body 8-1 of the second power cylinder 8 and the cylinder body 10-1 of the third power cylinder are fixed to the corresponding side of the frame 1. The lower back of the second adjusting flap 7 and the third adjusting flap 9 are connected to the telescopic rods 8-2 and 10-2 of the second power cylinder 8 and the third power cylinder 10, respectively. By telescoping the second power cylinder 8 and the third power cylinder 10, the tilt angle of the second adjusting flap 7 and the third adjusting flap 9 can be adjusted, thereby adjusting the material drop width and position of the lower funnel 13, so that the material is evenly distributed on the receiving conveyor belt, reducing the risk of deviation and tearing caused by unilateral force.

[0034] The through-beam photoelectric switch in this embodiment is an infrared through-beam switch.

[0035] In other embodiments, the deviation adjustment device may only include the second adjustment flap 7, the third adjustment flap 9, the second power cylinder 8, and the third power cylinder 10, without the first adjustment flap 5 and the first power cylinder 6, and the other structures are the same as in embodiment 1.

[0036] This utility model can be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model shall be included within the protection scope of this utility model.

Claims

1. A bulk cargo terminal belt conveyor with a tear-resistant device, comprising a frame, a receiving belt conveyor installed within the frame, a head funnel disposed above the receiving conveyor belt of the receiving belt conveyor, and a discharge belt conveyor connected to the upper part of the head funnel, the receiving belt conveyor having multiple sets of conveyor rollers evenly arranged along the length of the frame and the receiving conveyor belt located on the multiple sets of conveyor rollers, characterized in that: It also includes several sets of through-beam photoelectric switches. The transmitters of the through-beam photoelectric switches are symmetrically installed on both sides of the frame at the tail of the receiving conveyor belt and perpendicular to the frame. The receivers are installed directly above the receiving conveyor belt surface opposite to the transmitters. The vertical projection of the transmitters and receivers of the through-beam photoelectric switches is located 5-8 mm on the inner end face of the two outer sides of the receiving conveyor belt surface.

2. The bulk cargo terminal belt conveyor with tear-resistant device according to claim 1, characterized in that: The through-beam photoelectric switch is communicatively connected to the belt motion control module. When the receiving conveyor belt tears and the belt surface shrinks inward as a whole, the receivers of the through-beam photoelectric switches on both sides of the receiving conveyor belt receive the signal from the transmitter. The through-beam photoelectric switch generates a switching signal. The belt motion control module simultaneously receives the switching signals from both sides of the receiving conveyor belt and controls the receiving conveyor belt to stop moving.

3. The bulk cargo terminal belt conveyor with an anti-tear device according to claim 2, characterized in that: The through-beam photoelectric switch is also connected to the belt misalignment alarm module. When the belt misalignment alarm module receives a switching signal from only one side of the through-beam photoelectric switch, it issues a belt misalignment alarm. The belt misalignment alarm module is also equipped with a corresponding belt misalignment adjustment device.

4. The bulk cargo terminal belt conveyor with an anti-tear device according to claim 3, characterized in that: The deviation adjustment device includes a first adjustment flap and a first power cylinder. The first adjustment flap is disposed in the upper funnel of the machine head funnel opposite the material discharge end of the material discharge belt conveyor. The front of the first adjustment flap faces the material discharge end of the material discharge belt conveyor. The upper end of the first adjustment flap is hinged to the wall of the machine head funnel, and the lower end is a free end. The back of the first adjustment flap is connected to the first power cylinder.

5. The bulk cargo terminal belt conveyor with tear-resistant device according to claim 3, characterized in that: The deviation adjustment device includes a second adjustment flap, a third adjustment flap, a second power cylinder, and a third power cylinder. The second adjustment flap and the third adjustment flap are respectively hinged to both sides of the receiving conveyor belt in the lower part of the funnel of the machine head, facing the length direction of the conveyor belt. The lower back of the second adjustment flap and the third adjustment flap are respectively connected to the second power cylinder and the third power cylinder.

6. The bulk cargo terminal belt conveyor with an anti-tear device according to claim 4, characterized in that: The deviation adjustment device further includes a second adjustment flap, a third adjustment flap, a second power cylinder, and a third power cylinder. The second adjustment flap and the third adjustment flap are respectively hinged to both sides of the receiving conveyor belt in the lower part of the funnel of the machine head, facing the length direction of the material receiving conveyor belt. The lower back of the second adjustment flap and the third adjustment flap are respectively connected to the second power cylinder and the third power cylinder.

7. The bulk cargo terminal belt conveyor with tear-resistant device according to claim 5, characterized in that: The cylinder bodies of the second and third power cylinders are each fixed on the corresponding side of the frame, and the lower back sections of the second and third adjusting flaps are respectively connected to the telescopic rods of the power cylinders.

8. The bulk cargo terminal belt conveyor with tear-resistant device according to claim 6, characterized in that: The cylinder body of the first power cylinder is fixed on the outer wall of the upper funnel of the machine head funnel. The cylinder bodies of the second power cylinder and the third power cylinder are each fixed on the corresponding side of the machine frame. The lower back of the second adjusting flap and the third adjusting flap are respectively connected to the telescopic rod of the power cylinder. The back of the first adjusting flap is connected to the telescopic rod of the first power cylinder.

9. The bulk cargo terminal belt conveyor with an anti-tear device according to claim 3, characterized in that: The through-beam photoelectric switch is an infrared through-beam switch.

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