Electric quantity detection protection device for belt conveyor

Abstract

The utility model relates to the field of belt conveyor protection device, concretely is a kind of electric quantity detection protection device for belt conveyor, including main belt conveyor and standby belt conveyor;Control cabinet;Detection part, and detection part includes detection piece and control piece;Power supply part;Pushing part;Horizontal shift box, the horizontal shift box is set in the top of material shifting box, and horizontal shift cavity is opened in the inside of horizontal shift box, and sliding slot is opened in the outer wall of the both sides of horizontal shift box, and horizontal shift plate is set in horizontal shift cavity, and horizontal shift plate both ends extend sliding slot, and first material inlet and second material inlet are respectively set in horizontal shift plate, first material inlet is communicated with first discharge cavity, and second material inlet is communicated with first standby cavity;Inlet box;Distribution block.After the overload phenomenon of main belt conveyor appears, promptly stop main belt conveyor and enable standby belt conveyor to bear heavy load, avoid the belt and driving motor damage of main belt conveyor, improve the overall service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor protection devices, and in particular to a power detection and protection device for belt conveyors. Background Technology

[0002] Belt conveyors, also known as belt conveyors, are widely used in various industries such as home appliances, electronics, electrical appliances, machinery, tobacco, injection molding, post and telecommunications, printing, and food.

[0003] In steel plants, belt conveyors are often used to transport steelmaking raw materials. However, during actual raw material transportation, when a section of the belt conveyor is traveling too fast, the downstream belt conveyors will be overloaded. This is not easily noticed by on-site personnel, making it difficult to stop the belt conveyor in time or to activate the backup belt conveyor with a higher load capacity. This causes wear on the belt and belt reducer, which can easily lead to damage to the belt and belt reducer after prolonged use, greatly shortening their service life. Utility Model Content

[0004] This utility model provides a power detection and protection device for belt conveyors. When the main belt conveyor is overloaded, it promptly stops the main belt conveyor and activates the backup belt conveyor with a higher load capacity, thus avoiding damage to the belt and drive motor of the main belt conveyor and improving the overall service life of the equipment.

[0005] To achieve the above objectives, this utility model provides a power detection and protection device for belt conveyors, comprising: Main belt conveyor and standby belt conveyor; A control cabinet is provided, which is located between the main belt conveyor and the standby belt conveyor. The bottom of the control cabinet is provided with multiple support columns, and the control cabinet has a control cavity and a power supply cavity. The detection unit includes a detection component and a control component. The detection component is located in the power control box of the main belt conveyor, and the control component is located in the control cavity. The detection component is connected to the control component, and the control component controls the standby belt conveyor. A power supply unit is disposed within the power supply cavity and supplies power to the control unit; A pushing unit is disposed at one end of the top of the control cabinet, and the pushing unit is controlled by the control component; A transfer box is provided on one side of the pusher. Multiple support rods are provided between the bottom of the transfer box and the top of the control cabinet. A first discharge chamber and a first preparation chamber are provided inside the transfer box. A discharge port and a preparation port are respectively provided on the outer walls of both sides of the transfer box. The discharge port is connected to the first discharge chamber, and the first preparation chamber is connected to the preparation port. A transverse transfer box is provided on the top of the transfer box. A transverse transfer cavity is opened inside the transverse transfer box. Sliding grooves are opened on both outer walls of the transverse transfer box. A transverse transfer plate is provided in the transverse transfer cavity. The two ends of the transverse transfer plate extend out of the sliding grooves. The transverse transfer plate is respectively provided with a first feeding port and a second feeding port. The first feeding port is connected to the first discharge cavity, and the second feeding port is connected to the first preparation cavity. The feeding box is located on the top of the transverse moving box. The feeding box has a hollow feeding slot. The top of the transverse moving cavity has a transverse moving boss. The feeding slot is opened at the center of the transverse moving boss. The feeding slot is connected to the transverse moving cavity through the feeding slot. The material distribution block has a first sliding groove symmetrically opened on both sides of the first and second feeding ports on the transverse plate, and a second sliding groove symmetrically opened on the transverse boss. The material distribution block slides in the first and second sliding grooves, and the material distribution block has adjacent dropping grooves and transfer grooves.

[0006] Furthermore, the detection device is an ammeter, which is used to detect the current of the belt drive motor in the main belt conveyor. The control device includes a PLC, intermediate relays, and an isolator group. The ammeter is connected to the PLC through a port, the power supply unit supplies power to the PLC, the output terminal of the isolator group is connected to the PLC through a port, the intermediate relay is connected to the belt drive motor in the main belt conveyor and the push unit port respectively, and the input terminal of the isolator group is connected to the intermediate relay through a port.

[0007] Furthermore, the power detection and protection device for the belt conveyor also includes an HMI (Human-Machine Interface) screen, which is located in the main control room and is connected to the PLC via a port.

[0008] Furthermore, the PLC includes a CPU module, a communication module, and a digital quantity module. The CPU module, the communication module, and the digital quantity module are connected through ports. The CPU module is connected to the HMI human-machine interface screen through a communication port, and the digital quantity module is connected to the output terminal of the isolator group through a port.

[0009] Furthermore, the pushing part includes a support base and a pushing component. The support base is disposed at one end of the top of the control cabinet, and the pushing component is disposed on the support base. The pushing component is a cylinder. The end of the pushing component near the transverse plate is connected to the end of the material distribution block near the transfer trough.

[0010] Furthermore, a first slider is symmetrically arranged at the bottom of the material distribution block, and a second slider is symmetrically arranged at the top of the material distribution block. The first slider slides in the first chute, and the second slider slides in the second chute. A material distribution plate is arranged between the material drop chute and the material transfer chute. The length of the material transfer chute is greater than the length of the material drop chute. A material drop ramp is arranged in the material transfer chute, and the material drop ramp is arranged on the side of the material transfer chute closer to the material drop chute. The length of the material drop ramp is the same as the length of the material drop chute. The material drop chute cooperates with the first material inlet, and the material transfer chute cooperates with the second material inlet.

[0011] Furthermore, the power detection and protection device for the belt conveyor also includes a limiting plate, which is disposed at the other end of the transverse plate and is located away from the pushing member.

[0012] Furthermore, the power detection and protection device for the belt conveyor also includes a reinforcement component, which includes multiple stiffening plates and multiple fixing columns. The stiffening plates are provided at both ends of the transverse plate and are located below the sliding groove. The stiffening plates are respectively connected to the transverse plate and the outer wall of the transverse box. One end of the fixing column is located at the bottom of both ends of the transverse plate, and the other end of the fixing column is located at the top of the control box cabinet.

[0013] Furthermore, the power detection and protection device for the belt conveyor also includes a first transfer component and a second transfer component. One end of the first transfer component is connected to the discharge port, and the other end of the first transfer component is located directly above the main belt conveyor. One end of the second transfer component is connected to the preparation port, and the other end of the second transfer component is located directly above the standby belt conveyor.

[0014] Compared with the prior art, the power detection and protection device for belt conveyors according to the present invention performs real-time detection on the drive motor of the main belt conveyor and sets up a control component. The control component is equipped with a system that processes the real-time data of the detection and judges the working status of the main belt conveyor based on the data. When the main belt conveyor motor is in an overload state, it can promptly activate the push unit to transfer the material to the standby belt conveyor and stop the main belt conveyor, thus avoiding overload operation of the main belt conveyor. At the same time, it can promptly notify on-site personnel to check the fault. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the working structure of a power detection and protection device for a belt conveyor according to the present invention. Figure 2 This is a schematic diagram of the overall structure of a power detection and protection device for a belt conveyor in the context of activating a standby belt conveyor, according to the present invention. Figure 3for Figure 2 A schematic diagram of the cross-sectional structure; Figure 4 This is a schematic diagram of the overall structure of a power detection and protection device for a belt conveyor under normal conditions. Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure; Figure 6 for Figure 5 A magnified schematic diagram of a portion of region A in the middle; Figure 7 This is a schematic diagram of the overall structure of the material distribution block in a power detection and protection device for a belt conveyor according to this utility model; and Figure 8 This is a schematic diagram of a current detection and control system in a power detection and protection device for a belt conveyor according to the present invention.

[0016] Figure label: 100. Main belt conveyor; 200. Standby belt conveyor; 1000. Control cabinet; 1100. Support column; 1200. Control compartment; 1300. Power supply compartment; 2100. Testing components; 2200. Control components; 2210. PLC; 2220. Intermediate relays; 2230. Isolator assembly; 2240. HMI (Human-Machine Interface) panel; 2300. Power supply unit; 3100. Pushing component; 3200. Load-bearing base; 4000. Transfer box; 4100. Support rod; 4200. First discharge chamber; 4300. First preparation chamber; 4400. Discharge port; 5000. Transverse transfer box; 5100. Transverse transfer cavity; 5200. Transverse transfer plate; 5210. First chute; 5300. Sliding groove opening; 5400. First feed inlet; 5500. Second feed inlet; 6000. Feed box; 6100. Feed inlet; 6200. Transverse shift boss; 6210. Feed inlet; 6220. Second chute; 7000. Material distribution block; 7100. First slider; 7200. Second slider; 7300. Material distribution plate; 7400. Material drop chute; 7500. Transfer chute; 7510. Material drop ramp; 8100. Limiting plate; 8200. Rib plate; 8300. Fixing column; 8400. First transfer component; 8500. Second transfer component. Detailed Implementation

[0017] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0018] like Figures 1-8 As shown, a power detection and protection device for a belt conveyor according to an embodiment of the present invention includes: Main belt conveyor 100, standby belt conveyor 200, control cabinet 1000, detection unit, power supply unit 2300, push unit, transfer box 4000, transverse transfer box 5000, feed box 6000 and distribution block 7000; The control cabinet 1000 is located between the main belt conveyor 100 and the standby belt conveyor 200. The standby belt conveyor 200 has a larger load-bearing capacity, which enables the standby belt conveyor 200 to perform standby transfer work without damage. Multiple support columns 1100 are set at the bottom of the control cabinet 1000. The control cabinet 1000 has a control cavity 1200 and a power supply cavity 1300. The detection unit includes a detection component 2100 and a control component 2200. The detection component 2100 is installed in the power control box of the main belt conveyor 100, and the control component 2200 is installed in the control cavity 1200. The detection component 2100 is connected to the control component 2200. The power supply unit 2300 is disposed inside the power supply cavity 1300, and the power supply unit 2300 supplies power to the control unit 2200; The push unit is located at one end of the top of the control cabinet 1000. The transfer box 4000 is located on one side of the pusher. Multiple support rods 4100 are provided between the bottom of the transfer box 4000 and the top of the control cabinet 1000. The transfer box 4000 has a first discharge chamber 4200 and a first preparation chamber 4300. The outer walls on both sides of the transfer box 4000 have discharge ports 4400 and preparation ports respectively. The discharge port 4400 is connected to the first discharge chamber 4200, and the first preparation chamber 4300 is connected to the preparation port. A transverse transfer box 5000 is set on the top of the transfer box 4000. A transverse transfer cavity 5100 is opened inside the transverse transfer box 5000. Sliding slots 5300 are opened on both outer walls of the transverse transfer box 5000. A transverse transfer plate 5200 is set inside the transverse transfer cavity 5100. The two ends of the transverse transfer plate 5200 extend out of the sliding slots 5300. The transverse transfer plate 5200 is respectively opened with a first feeding port 5400 and a second feeding port 5500. The first feeding port 5400 is connected to the first discharge cavity 4200, and the second feeding port 5500 is connected to the first preparation cavity 4300. The feed box 6000 is located on top of the transverse moving box 5000. The feed box 6000 is provided with a hollow feed inlet 6100. The transverse moving cavity 5100 is provided with a transverse moving boss 6200 on top. A feed inlet 6210 is opened at the center of the transverse moving boss 6200. The feed inlet 6100 is connected to the transverse moving cavity 5100 through the feed inlet 6210. The transverse plate 5200 has symmetrical first grooves 5210 on both sides of the first feed port 5400 and the second feed port 5500, and the transverse boss 6200 has symmetrical second grooves 6220. The material distribution block 7000 slides in the first groove 5210 and the second groove 6220. The material distribution block 7000 has adjacent drop chute 7400 and transfer chute 7500. When the upper-level belt conveyor and the lower-level main belt conveyor 100 are in normal working condition, one end of the upper-level belt conveyor is located above the feed box 6000. The material enters through the feed inlet 6100 of the feed box 6000, then passes through the feed inlet 6210 into the transverse transfer box 5000. At this time, the material distribution block 7000 is in the first position, that is, the material drop chute 7400 of the material distribution block 7000 is located below the feed inlet 6210. At the same time, the material distribution block 7000... The material drop chute 7400 of 000 coincides with the first feed port 5400 of the transverse plate 5200, and the pushing part is in the initial state. When the material enters the transverse box 5000, the material first falls into the material drop chute 7400, and continues to enter the first discharge chamber 4200 of the transfer box 400 through the first feed port 5400. The material then falls smoothly onto the belt of the next-level main belt conveyor 100 through the discharge port 4400 opened in the first discharge chamber 4200. However, when the upper-level belt conveyor experiences a fault of excessive transmission speed, the lower-level main belt conveyor 100 becomes overloaded. Specifically, the belt load on the main belt conveyor 100 increases, requiring the drive motor of the main belt conveyor 100 to operate under overload conditions to continue driving the belt. This increases the current required by the drive motor. The detection unit 2100 detects the real-time current data of the drive motor and feeds it back to the control unit 2200. The current data is compared with the current data of the drive motor under the full-load condition set by the programming system within the control unit 2200 to determine that the drive motor is overloaded. At this point, the system of the control unit 2200 sequentially controls the push unit, the standby belt conveyor 200, and the main belt conveyor 100. First, the control unit 2200 controls the push unit to extend, causing the material distribution block 7000 to slide away from the push unit on the transverse plate 5200 until the push unit reaches its maximum limit. At this point, the material distribution... The transfer chute 7500 of the dividing block 7000 is located below the inlet chute 6210, while the transfer chute 7500 of the dividing block 7000 cooperates with the second feed port 5500 of the transverse plate 5200. At this time, the dividing block 7000 is in the second position. The material falls into the transfer chute 7500 after passing through the inlet chute 6210. The material then falls from the transfer chute 7500 into the second feed port 5500 and continues to fall into the second preparation chamber of the transfer box 4000, and finally falls from the preparation port into the preparation chamber. While the main belt conveyor 200 is operating, the backup belt conveyor 200 starts simultaneously with the drive unit working, allowing materials to be transferred by the backup belt conveyor 200 in a timely manner. At this time, the control unit 2200 stops the main belt conveyor 100 to prevent it from running idle. The control unit 2200 also alarms the user to indicate an overload, allowing the user to check the upstream belt conveyor in a timely manner. After completing the inspection, the user can control the material distribution block 7000 to return to the first position and the main belt conveyor 100 to operate through the control unit 2200, so that the main belt conveyor 100 can carry out normal transfer work.

[0019] Furthermore, such as Figure 8 As shown, the detection component 2100 is an ammeter, which is used to detect the current of the belt drive motor in the main belt conveyor 100. The control component 2200 includes a PLC 2210, an intermediate relay 2220, and an isolator group 2230. The ammeter is connected to the PLC 2210 through a port. The power supply unit 2300 supplies power to the PLC 2210. The output terminal of the isolator group 2230 is connected to the PLC 2210 through a port. The intermediate relay 2220 is connected to the ports of the belt drive motor and the push unit in the main belt conveyor 100, respectively. The input terminal of the isolator group 2230 is connected to the intermediate relay 2220 through a port.

[0020] Preferably, the isolator group 2230 includes multiple isolators, wherein the isolators use linear optocoupler isolation technology to convert the input signal into an output, thereby achieving electrical isolation between the input, output and operating power supply, and is suitable for equipment and instruments that require electrical isolation.

[0021] Preferably, such as Figure 8 As shown, the intermediate relay 2220 is connected to the drive motor of the main belt conveyor 100 and the drive motor of the standby belt conveyor 200. The output terminal of PLC 2210 controls the operation of the drive motor through the isolator and the intermediate relay 2220. The intermediate relay 2220 has the function of protecting the contacts of PLC 2210 and stabilizing the voltage of the drive motor.

[0022] Furthermore, such as Figure 8 As shown, the power detection and protection device for the belt conveyor also includes an HMI (Human-Machine Interface) 2240, which is located in the main control room and connected to the PLC 2210 via a port. The HMI 2240 has real-time monitoring, control operation, and alarm management functions. Real-time monitoring displays the equipment status and visualizes it through charts / animations; control operation supports parameter setting, start / stop command issuance, and mode switching (such as manual / automatic); and alarm management defines thresholds to trigger alarms and records events.

[0023] Furthermore, the PLC2210 includes a CPU module, a communication module, and digital I / O modules. These modules are connected via ports. The CPU module connects to the HMI (Human Machine Interface) 2240 via a communication port, and the digital I / O modules connect to the output of the isolator group 2230 via a port. The communication module uses an Ethernet communication module, which is used by the HMI 2240 to connect to the CPU module within the PLC2210 for configuration programming and monitoring. The digital I / O modules (also known as switch I / O modules) are key components in industrial automation systems, used to process switch signal input / output control.

[0024] Preferably, the power detection and protection device for the belt conveyor also includes an analog module. The analog module is a core component in industrial automation systems for realizing analog signal acquisition and conversion. It is mainly divided into two categories: input modules and output modules. In this practical embodiment, the analog module adopts a 485 communication module. The 485 communication module has high communication accuracy, relatively simple wiring, and is easy for on-site personnel to operate.

[0025] Furthermore, such as Figure 2As shown, the pushing unit includes a support base 3200 and a pushing component 3100. The support base 3200 is located at one end of the top of the control cabinet 1000, and the pushing component 3100 is mounted on the support base 3200. The pushing component 3100 is a cylinder. The end of the pushing component 3100 is near the transverse plate 5200, and the output end of the pushing component 3100 is connected to the end of the material distribution block 7000 near the transfer chute 7500. When the pushing component 3100 is in its initial non-working state, the material distribution block 7000 at the output end of the pushing component 3100 is in the first position, ensuring that the material can fall normally onto the belt of the main belt conveyor 100. When the pushing component 3100 is started and in the maximum extended position, the material distribution block 7000 is in the second position, allowing the material to fall onto the belt of the standby belt conveyor 200.

[0026] Furthermore, such as Figure 3 , Figure 4 and Figure 7 As shown, a first slider 7100 is symmetrically arranged at the bottom of the material distribution block 7000, and a second slider 7200 is symmetrically arranged at the top of the material distribution block 7000. The first slider 7100 slides in the first slide groove 5210, and the second slider 7200 slides in the second slide groove 6220. A material distribution plate 7300 is arranged between the material drop chute 7400 and the material transfer chute 7500. The length of the material transfer chute 7500 is greater than the length of the material drop chute 7400. A material drop ramp 7510 is arranged in the material transfer chute 7500, and the material drop ramp 7510 is arranged on the side of the material transfer chute 7500 close to the material drop chute 7400. The length of the material drop ramp 7510 is the same as the length of the material drop chute 7400. The material drop chute 7400 cooperates with the first feed port 5400, and the material transfer chute 7500 cooperates with the second feed port 5500. The first slider 7100 is slidably engaged with the first slide groove 5210, and the second slider 7200 is slidably engaged with the second slide groove 6220, so that the material distribution block 7000 moves smoothly laterally on the transverse plate 5200. Since the length of the transfer trough 7500 is greater than the length of the second feed port 5500, a material discharge ramp 7510 is set in the transfer trough 7500 to assist the material in entering the second feed port 5500. When the material falls from the feed trough 6210 into the transfer trough 7500, the material first falls on the material discharge ramp 7510 to buffer the material, and the slope of the material discharge ramp 7510 assists the material in falling into the second feed port 5500.

[0027] Furthermore, such as Figure 2 and Figure 3 As shown, the power detection and protection device for the belt conveyor also includes a limiting plate 8100, which is disposed at the other end of the transverse plate 5200 and is located away from the pusher 3100. When the material distribution block 7000 is in the second position, the other end of the material distribution block 7000 contacts the limiting plate 8100, thereby further restricting the position of the material distribution block 7000.

[0028] Furthermore, such as Figure 4 As shown, the power detection and protection device for the belt conveyor also includes a reinforcement component, which includes multiple stiffening plates 8200 and multiple fixing columns 8300. Stiffening plates 8200 are provided at both ends of the transverse plate 5200, and are positioned below the sliding groove 5300. The stiffening plates 8200 are connected to the outer walls of the transverse plate 5200 and the transverse box 5000, respectively. One end of each fixing column 8300 is located at the bottom of both ends of the transverse plate 5200, and the other end is located at the top of the control cabinet 1000. The material distribution block 7000 moves laterally on the transverse plate 5200. The stiffening plates 8200 reinforce the connection between the transverse plate 5200 and the outer walls of the transverse box 5000. Simultaneously, the fixing columns 8300 are positioned between the transverse plate 5200 and the control cabinet 1000, thereby supporting both ends of the transverse plate 5200.

[0029] Furthermore, such as Figure 1 As shown, the power detection and protection device for the belt conveyor also includes a first transfer component 8400 and a second transfer component 8500. One end of the first transfer component 8400 is connected to the discharge port 4400, and the other end of the first transfer component 8400 is located directly above the main belt conveyor 100. One end of the second transfer component 8500 is connected to the material preparation port, and the other end of the second transfer component 8500 is located directly above the standby belt conveyor 200.

[0030] In the second embodiment of this utility model, the current value of the drive motor of the main belt conveyor 100 when it is idling is measured and recorded. The user can pre-enter the current value of the drive motor of the belt conveyor when it is idling in the programming program in the CPU module of PLC2210. When the meter reading meets the no-load value set by the system during actual production, the system will display an no-load operation alarm on the HMI human-machine interface screen 2240 and interlock to stop the main belt conveyor 100, thereby saving energy.

[0031] Preferably, based on the peak, flat, and valley times of the power system and the different electricity prices during these periods, and by comparing the data within the PLC2210, the usage time of the main belt conveyor 100 is statistically analyzed, and its operating time is adjusted to reasonably avoid peak periods. (Peak electricity price: 0.5 yuan / kWh, flat price: 0.3 yuan / kWh, valley price: 0.15 yuan / kWh) The belt's operating time period is then adjusted to utilize the low electricity price during valley periods for full-load production. Peak-shaving operation during peak periods achieves the effect of reducing electricity costs.

[0032] In the description of this utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" and their orientation or positional relationships are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. A power detection and protection device for belt conveyors, characterized in that, include: Main belt conveyor and standby belt conveyor; A control cabinet is provided, which is located between the main belt conveyor and the standby belt conveyor. The bottom of the control cabinet is provided with multiple support columns, and the control cabinet has a control cavity and a power supply cavity. The detection unit includes a detection component and a control component. The detection component is located in the power control box of the main belt conveyor, and the control component is located in the control cavity. The detection component is connected to the control component, and the control component controls the standby belt conveyor. A power supply unit is disposed within the power supply cavity and supplies power to the control unit; A pushing unit is disposed at one end of the top of the control cabinet, and the pushing unit is controlled by the control component; A transfer box is provided on one side of the pusher. Multiple support rods are provided between the bottom of the transfer box and the top of the control cabinet. A first discharge chamber and a first preparation chamber are provided inside the transfer box. A discharge port and a preparation port are respectively provided on the outer walls of both sides of the transfer box. The discharge port is connected to the first discharge chamber, and the first preparation chamber is connected to the preparation port. A transverse transfer box is provided on the top of the transfer box. A transverse transfer cavity is opened inside the transverse transfer box. Sliding grooves are opened on both outer walls of the transverse transfer box. A transverse transfer plate is provided in the transverse transfer cavity. The two ends of the transverse transfer plate extend out of the sliding grooves. The transverse transfer plate is respectively provided with a first feeding port and a second feeding port. The first feeding port is connected to the first discharge cavity, and the second feeding port is connected to the first preparation cavity. The feeding box is located on the top of the transverse moving box. The feeding box has a hollow feeding slot. The top of the transverse moving cavity has a transverse moving boss. The feeding slot is opened at the center of the transverse moving boss. The feeding slot is connected to the transverse moving cavity through the feeding slot. The material distribution block has a first sliding groove symmetrically opened on both sides of the first and second feeding ports on the transverse plate, and a second sliding groove symmetrically opened on the transverse boss. The material distribution block slides in the first and second sliding grooves, and the material distribution block has adjacent dropping grooves and transfer grooves.

2. The power detection and protection device for belt conveyors according to claim 1, characterized in that, The detection device is an ammeter, which is used to detect the current of the belt drive motor in the main belt conveyor. The control device includes a PLC, intermediate relays, and an isolator group. The ammeter is connected to the PLC through a port. The power supply unit supplies power to the PLC. The output terminal of the isolator group is connected to the PLC through a port. The intermediate relay is connected to the ports of the belt drive motor in the main belt conveyor and the push unit, respectively. The input terminal of the isolator group is connected to the intermediate relay through a port.

3. The power detection and protection device for belt conveyors according to claim 2, characterized in that, It also includes an HMI (Human-Machine Interface) screen, which is located in the main control room and is connected to the PLC via a port.

4. The power detection and protection device for belt conveyors according to claim 3, characterized in that, The PLC includes a CPU module, a communication module, and a digital quantity module. The CPU module, the communication module, and the digital quantity module are connected through ports. The CPU module is connected to the HMI human-machine interface screen through a communication port, and the digital quantity module is connected to the output terminal of the isolator group through a port.

5. The power detection and protection device for belt conveyors according to claim 1, characterized in that, The pushing part includes a support base and a pushing component. The support base is located at one end of the top of the control cabinet, and the pushing component is located on the support base. The pushing component is a cylinder. The end of the pushing component is close to the transverse plate, and the output end of the pushing component is connected to the end of the material distribution block close to the transfer trough.

6. The power detection and protection device for belt conveyors according to claim 5, characterized in that, The bottom of the material distribution block is symmetrically provided with a first slider, and the top of the material distribution block is symmetrically provided with a second slider. The first slider slides in the first chute, and the second slider slides in the second chute. A material distribution plate is provided between the material drop chute and the material transfer chute. The length of the material transfer chute is greater than the length of the material drop chute. A material drop ramp is provided in the material transfer chute. The material drop ramp is located in the material transfer chute on the side close to the material drop chute. The length of the material drop ramp is the same as the length of the material drop chute. The material drop chute cooperates with the first material inlet, and the material transfer chute cooperates with the second material inlet.

7. The power detection and protection device for belt conveyors according to claim 5, characterized in that, It also includes a limiting plate, which is disposed at the other end of the transverse plate and is located away from the pushing member.

8. The power detection and protection device for belt conveyors according to claim 1, characterized in that, It also includes a reinforcement component, which includes multiple stiffening plates and multiple fixing columns. The stiffening plates are provided at both ends of the transverse plate and are located below the sliding groove. The stiffening plates are respectively connected to the transverse plate and the outer wall of the transverse box. One end of the fixing column is located at the bottom of both ends of the transverse plate, and the other end of the fixing column is located at the top of the control box cabinet.

9. The power detection and protection device for belt conveyors according to claim 1, characterized in that, It also includes a first transfer component and a second transfer component. One end of the first transfer component is connected to the discharge port, and the other end of the first transfer component is located directly above the main belt conveyor. One end of the second transfer component is connected to the preparation port, and the other end of the second transfer component is located directly above the standby belt conveyor.

Images