Bucket wheel machine tail car alarm switch interlocking control system

Abstract

The invention relates to the technical field of interlocking control, and discloses a bucket wheel machine tail car alarm switch interlocking control system which comprises a system module assembly, the system module assembly comprises a bucket wheel machine control cabinet and a program control room control cabinet installed at a coal conveying end, and both the bucket wheel machine control cabinet and the program control room control cabinet are internally provided with two-way wireless communication modules. The bidirectional wireless communication module comprises a wireless signal transmitting and receiving device, and the wireless signal transmitting and receiving device is connected with an antenna. Bucket wheel machine single equipment and coal conveying program control linkage operation is achieved, two-way transmission is more stable, the material cost and the labor cost of wired communication cable construction are reduced, linkage operation and shutdown operation among multiple single equipment can be achieved in a coal conveying centralized control system through the wireless signal receiving and transmitting device, heat dissipation can be achieved, and the service life of the single equipment is prolonged. And impurities can be filtered during heat dissipation, so that the impurities are prevented from entering the cabinet body, and external wet air is prevented from influencing parts in the cabinet body during ventilation.

Description

Technical Field

[0001] The invention relates to the technical field of interlocking control, and in particular to an interlocking control system for an alarm switch of a tail car of a bucket wheel machine. Background Art

[0002] The traditional working modes of bucket wheel excavators in coal transportation systems of thermal power plants are generally stacking and reclaiming. In order to improve production efficiency, many thermal power plants have added a split-flow operation mode. In the split-flow mode, the position of the baffle plate in the coal drop hopper of the tail car of the bucket wheel excavator changes.

[0003] After searching, the patent with authorization publication number CN215973638U discloses a device for detecting coal blockage in the coal hopper of the tail car of a bucket wheel locomotive. An adapter is installed on one side of the top of the baffle of the system, and a rotating shaft is penetrated in the adapter. An inductive proximity switch is embedded in the center position of the top of the protective cover. When the central coal hopper is blocked by coal, the accumulated coal contacts the baffle through the through groove and is squeezed. The top of the baffle will rotate through the adapter shaft until the other side of the top of the baffle touches the bottom of the inductive proximity switch, forming a trigger switch circuit, thereby sending out an alarm signal.

[0004] However, the above patent has the following problems: after the alarm signal is detected, the lower belt cannot be stopped in an interlocking manner, the cables in the wired communication system of the bucket wheel machine are easily broken, and the heat dissipation effect of the control cabinet in the program control room is poor. Therefore, a bucket wheel machine tail car alarm switch interlocking control system is provided. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a bucket wheel excavator tail car alarm switch interlocking control system, which solves the problems that the current detection system cannot interlock and stop the lower belt after detecting the alarm signal, the cables in the bucket wheel excavator wired communication system are easily broken and damaged, and the control cabinet in the program control room has poor heat dissipation effect.

[0007] (II) Technical solution

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A bucket wheel machine tail car alarm switch interlocking control system, comprising a system module assembly, the system module assembly comprising a bucket wheel machine control cabinet and a program control room control cabinet installed at the coal conveying end, and the bucket wheel machine control cabinet and the program control room control cabinet are both provided with a two-way wireless communication module, the two-way wireless communication module comprises a wireless signal transceiver, and the wireless signal transceiver is connected to an antenna, and switch quantity communication signals can be exchanged between the two antennas, the program control room control cabinet is connected to the coal conveying belt control end, and the bucket wheel machine control cabinet is connected to the bucket wheel machine tail car pull rope switch through the two-way wireless communication module. The pull rope switch at the tail car of the bucket wheel machine and the coal blocking switch are connected. After the alarm signal is sent out by the pull rope switch and the coal blocking switch at the tail car of the bucket wheel machine, it is transmitted to the bucket wheel machine control cabinet through the two-way wireless communication module, and then transmitted to the control cabinet in the program control room through the bucket wheel machine control cabinet. The control cabinet in the program control room and the control end of the coal conveying belt are provided with interlocking lower-level belt shutdown conditions. According to the action of the pull rope switch and the coal blocking switch alarm signal at the tail car of the bucket wheel machine, the lower-level belt of the bucket wheel machine is immediately stopped. After detecting the operation of the coal conveying belt, the control cabinet in the program control room sends a wireless fault reset signal to the bucket wheel machine control cabinet, so that it controls the normal operation of the bucket wheel machine.

[0010] Furthermore, the bucket wheel excavator control cabinet and the program control room control cabinet are both connected to a power supply cabinet.

[0011] On the basis of the above scheme, the condition for stopping the interlocking lower belt is: the belt is deviated, and an angle control switch has been installed on site.

[0012] As a further solution of the present invention, the condition for stopping the interlocked lower belt is: emergency stop interlock, in which case the tail car pull rope switch and the coal blocking micro switch are used on site to work together.

[0013] Furthermore, the condition for stopping the interlocking lower belt is that the pull rope and coal blocking switch of the car are sent to the PLC in the control room by wireless transmission.

[0014] On the basis of the above scheme, the interlocked lower belt stopping condition is: the control room stops the next belt in an interlocked manner after receiving the stop command.

[0015] As a further solution of the present invention, the bucket wheel excavator control cabinet and the program control room control cabinet are both connected to a protection module, and the protection module includes a protection net, a temperature sensor, and a humidity sensor.

[0016] Furthermore, the bucket wheel excavator control cabinet and the program control room control cabinet are both provided with a monitoring module, and the monitoring module is connected to the terminal.

[0017] On the basis of the above scheme, the control cabinet of the program-controlled room includes a cabinet body, and heat dissipation ports and water baffles are opened on both sides of the cabinet body, a filter screen is arranged in the heat dissipation port, the water baffle is located on the upper part of the heat dissipation port, a heat dissipation fan and a water absorbent mesh are fixed by bolts on the inner wall of one side of the cabinet body near the heat dissipation port, and the water absorbent mesh is on one side of the heat dissipation fan, a temperature sensor is fixed by bolts on the inner wall of one side of the cabinet body, a humidity sensor is fixed on the inner wall of the other side, a camera is fixed by bolts inside the top of the cabinet body, a plurality of vertically placed fixing frames are fixed by bolts on the inner wall of one side of the cabinet body, and a plurality of fixing holes are provided on the fixing frames, and a plurality of mounting frames are fixed to the fixing frames through the fixing holes.

[0018] As a further solution of the present invention, a cabinet door is provided on one side of the cabinet, and an observation window is provided on the cabinet door, a battery is provided on the bottom inner wall of the cabinet, and a protective cover is provided on the top of the cabinet, and a wireless signal transceiver is provided on the protective cover.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention realizes the interlocking operation of the bucket wheel excavator unit equipment and the coal conveying program control, and the two-way transmission is more stable, reducing the material cost and labor cost of the wired communication cable construction. Through the wireless signal transceiver device, the interlocking operation and shutdown operation between multiple unit equipment can be realized in the coal conveying centralized control system.

[0021] 2. The present invention effectively improves the previous situation that the alarm signal of the bucket wheel machine can only send out an alarm but cannot allow the alarm signal of the bucket wheel machine to participate in the operation of stopping the belt in the coal conveying program control system.

[0022] 3. The present invention can connect the pull rope switch alarm signal in parallel by adding a coal blocking switch at the bucket of the bucket wheel machine tail car, so as to realize the function of chain stopping the lower belt after multiple alarm signals are triggered.

[0023] 4. The present invention can perform ventilation and heat dissipation through the provision of heat dissipation ports and heat dissipation fans, thereby preventing electronic devices in the cabinet from overheating and causing malfunctions. The provision of the filter net can filter impurities to prevent them from entering the cabinet. The provision of the water-absorbing mesh cloth can absorb moisture to prevent external humid air from affecting the components in the cabinet during ventilation.

[0024] 5. The present invention can adjust the position of the mounting frame by setting the fixing frame and the fixing holes, thereby facilitating the installation of components of different sizes in the cabinet, and can adjust the positions of different components to ensure the smoothness of the air duct during heat dissipation and ventilation, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the system framework structure of a bucket wheel machine tail car alarm switch interlocking control system proposed by the present invention;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a control cabinet in a program-controlled room of a bucket wheel machine tail car alarm switch interlocking control system proposed by the present invention;

[0027] Figure 3 The present invention provides a schematic cross-sectional structural diagram of a control cabinet in a program-controlled room of a bucket wheel locomotive tail car alarm switch interlocking control system.

[0028] In the figure: 1. cabinet body; 2. cabinet door; 3. observation window; 4. filter; 5. water baffle; 6. protective cover; 7. battery; 8. cooling fan; 9. water-absorbent mesh; 10. temperature sensor; 11. wireless signal transceiver; 12. camera; 13. fixing bracket; 14. mounting bracket; 15. humidity sensor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. It should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0030] Example 1

[0031] Reference Figure 1-3A bucket wheel machine tail car alarm switch interlocking control system includes a system module assembly, the system module assembly includes a bucket wheel machine control cabinet and a program control room control cabinet installed at the coal conveying end, and the bucket wheel machine control cabinet and the program control room control cabinet are both provided with a two-way wireless communication module, the two-way wireless communication module includes a wireless signal transceiver, and the wireless signal transceiver is connected to an antenna, and switch quantity communication signals can be exchanged between the two antennas to realize the interlocking operation of the bucket wheel machine single device and the coal conveying program control, and the two-way transmission is more stable, reducing the material cost and labor cost of the wired communication cable construction, and the interlocking operation and shutdown operation between multiple single devices can be realized in the coal conveying centralized control system through the wireless signal transceiver. The program control room control cabinet is connected to the coal conveying belt control end, and the bucket wheel machine control cabinet is connected to the bucket wheel machine tail car pull rope switch and the coal blocking switch through the two-way wireless communication module. After the pull rope switch and coal blocking switch at the tail car of the bucket wheel machine send out an alarm signal, it is transmitted to the bucket wheel machine control cabinet through the two-way wireless communication module, and then transmitted to the control cabinet in the program control room through the bucket wheel machine control cabinet. The control cabinet in the program control room and the coal conveyor belt control end are provided with interlocking lower belt shutdown conditions. According to the action of the pull rope switch and coal blocking switch alarm signals at the tail car of the bucket wheel machine, the lower belt of the bucket wheel machine is immediately stopped, which effectively improves the previous situation that the bucket wheel machine alarm signal can only send out an alarm but cannot allow the bucket wheel machine alarm signal to participate in the belt shutdown operation in the coal conveying program control system. After detecting the operation of the coal conveyor belt, the control cabinet in the program control room sends a wireless fault reset signal to the bucket wheel machine control cabinet, so that it controls the normal operation of the bucket wheel machine. By adding a coal blocking switch at the hopper of the tail car of the bucket wheel machine, the pull rope switch alarm signal can be connected in parallel, so as to realize the function of interlocking the lower belt shutdown after multiple alarm signals are triggered.

[0032] In the present invention, the bucket wheel excavator control cabinet and the program control room control cabinet are both connected to the power cabinet. The conditions for the interlocked lower belt shutdown are: the belt is deviated. An angle control switch has been installed on site, and the emergency shutdown is interlocked. In this case, the tail car pull rope switch and the coal blocking micro switch are used on site. The car's pull rope and coal blocking switch are sent to the control room PLC by wireless transmission. After the control room receives the shutdown command, the next level of belt (non-bucket wheel excavator belt) is interlocked and shut down.

[0033] In particular, the control cabinet of the program control room includes a cabinet 1, and both sides of the cabinet 1 are provided with heat dissipation ports and water baffles 5, a filter screen 4 is arranged in the heat dissipation port, the water baffle 5 is located at the upper part of the heat dissipation port, a heat dissipation fan 8 and a water-absorbing mesh 9 are fixed by bolts to the inner wall of one side of the cabinet 1 near the heat dissipation port, and the water-absorbing mesh 9 is on one side of the heat dissipation fan 8, and ventilation and heat dissipation can be performed through the arrangement of the heat dissipation port and the heat dissipation fan 8, thereby preventing the electronic devices in the cabinet from overheating and causing malfunctions, and the arrangement of the filter screen 4 can filter impurities to prevent them from entering the cabinet 1, and the arrangement of the water-absorbing mesh 9 can absorb moisture to prevent the external humid air from affecting the cabinet 1 during ventilation. The components in the cabinet 1 are fixed with a temperature sensor 10 on the inner wall of one side by bolts, and a humidity sensor 15 is fixed on the inner wall of the other side by bolts. A camera 12 is fixed to the top of the cabinet 1 by bolts. A plurality of vertically placed fixing frames 13 are fixed with bolts on the inner wall of one side of the cabinet 1, and a plurality of fixing holes are provided on the fixing frames 13. A plurality of mounting frames 14 are fixed to the fixing frames 13 through the fixing holes. The positions of the mounting frames 14 can be adjusted by setting the fixing frames 13 and the fixing holes, so that components of different sizes can be installed in the cabinet 1 conveniently, and the positions of different components can be adjusted to ensure the smoothness of the air duct during heat dissipation and ventilation, thereby improving the heat dissipation efficiency.

[0034] A cabinet door 2 is provided on one side of the cabinet 1, and an observation window 3 is provided on the cabinet door 2. A battery 7 is provided on the bottom inner wall of the cabinet 1, and a protective cover 6 is provided on the top of the cabinet 1. The protective cover 6 is provided with a wireless signal transceiver 11 for convenient signal transmission and reception.

[0035] Example 2

[0036] Reference Figure 1-3A bucket wheel machine tail car alarm switch interlocking control system includes a system module assembly, the system module assembly includes a bucket wheel machine control cabinet and a program control room control cabinet installed at the coal conveying end, and the bucket wheel machine control cabinet and the program control room control cabinet are both provided with a two-way wireless communication module, the two-way wireless communication module includes a wireless signal transceiver, and the wireless signal transceiver is connected to an antenna, and switch quantity communication signals can be exchanged between the two antennas to realize the interlocking operation of the bucket wheel machine single device and the coal conveying program control, and the two-way transmission is more stable, reducing the material cost and labor cost of the wired communication cable construction, and the interlocking operation and shutdown operation between multiple single devices can be realized in the coal conveying centralized control system through the wireless signal transceiver. The program control room control cabinet is connected to the coal conveying belt control end, and the bucket wheel machine control cabinet is connected to the bucket wheel machine tail car pull rope switch and the coal blocking switch through the two-way wireless communication module. After the pull rope switch and coal blocking switch at the tail car of the bucket wheel machine send out an alarm signal, it is transmitted to the bucket wheel machine control cabinet through the two-way wireless communication module, and then transmitted to the control cabinet in the program control room through the bucket wheel machine control cabinet. The control cabinet in the program control room and the coal conveyor belt control end are provided with interlocking lower belt shutdown conditions. According to the action of the pull rope switch and coal blocking switch alarm signals at the tail car of the bucket wheel machine, the lower belt of the bucket wheel machine is immediately stopped, which effectively improves the previous situation that the bucket wheel machine alarm signal can only send out an alarm but cannot allow the bucket wheel machine alarm signal to participate in the belt shutdown operation in the coal conveying program control system. After detecting the operation of the coal conveyor belt, the control cabinet in the program control room sends a wireless fault reset signal to the bucket wheel machine control cabinet, so that it controls the normal operation of the bucket wheel machine. By adding a coal blocking switch at the hopper of the tail car of the bucket wheel machine, the pull rope switch alarm signal can be connected in parallel, so as to realize the function of interlocking the lower belt shutdown after multiple alarm signals are triggered.

[0037] In the present invention, the bucket wheel excavator control cabinet and the program control room control cabinet are both connected to the power cabinet. The conditions for the interlocked lower belt shutdown are: the belt is deviated. An angle control switch has been installed on site, and the emergency shutdown is interlocked. In this case, the tail car pull rope switch and the coal blocking micro switch are used on site. The car's pull rope and coal blocking switch are sent to the control room PLC by wireless transmission. After the control room receives the shutdown command, the next level of belt (non-bucket wheel excavator belt) is interlocked and shut down.

[0038] In particular, the bucket wheel excavator control cabinet and the program control room control cabinet are both connected with a protection module, the protection module includes a protection net, a temperature sensor, and a humidity sensor. The bucket wheel excavator control cabinet and the program control room control cabinet are both equipped with a monitoring module, and the monitoring module is connected to the terminal.

[0039] In particular, the control cabinet of the program control room includes a cabinet 1, and both sides of the cabinet 1 are provided with heat dissipation ports and water baffles 5, a filter screen 4 is arranged in the heat dissipation port, the water baffle 5 is located at the upper part of the heat dissipation port, a heat dissipation fan 8 and a water-absorbing mesh 9 are fixed by bolts to the inner wall of one side of the cabinet 1 near the heat dissipation port, and the water-absorbing mesh 9 is on one side of the heat dissipation fan 8, and ventilation and heat dissipation can be performed through the arrangement of the heat dissipation port and the heat dissipation fan 8, thereby preventing the electronic devices in the cabinet from overheating and causing malfunctions, and the arrangement of the filter screen 4 can filter impurities to prevent them from entering the cabinet 1, and the arrangement of the water-absorbing mesh 9 can absorb moisture to prevent the external humid air from affecting the cabinet 1 during ventilation. The components in the cabinet 1 are fixed with a temperature sensor 10 on the inner wall of one side by bolts, and a humidity sensor 15 is fixed on the inner wall of the other side by bolts. A camera 12 is fixed to the top of the cabinet 1 by bolts. A plurality of vertically placed fixing frames 13 are fixed with bolts on the inner wall of one side of the cabinet 1, and a plurality of fixing holes are provided on the fixing frames 13. A plurality of mounting frames 14 are fixed to the fixing frames 13 through the fixing holes. The positions of the mounting frames 14 can be adjusted by setting the fixing frames 13 and the fixing holes, so that components of different sizes can be installed in the cabinet 1 conveniently, and the positions of different components can be adjusted to ensure the smoothness of the air duct during heat dissipation and ventilation, thereby improving the heat dissipation efficiency.

[0040] A cabinet door 2 is provided on one side of the cabinet 1, and an observation window 3 is provided on the cabinet door 2. A battery 7 is provided on the bottom inner wall of the cabinet 1, and a protective cover 6 is provided on the top of the cabinet 1. The protective cover 6 is provided with a wireless signal transceiver 11 for convenient signal transmission and reception.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bucket wheel machine tail car alarm switch interlocking control system, including a system module assembly, characterized in that: The system module assembly includes a bucket wheel excavator control cabinet and a program-controlled room control cabinet installed at the coal conveying end, and the bucket wheel excavator control cabinet and the program-controlled room control cabinet are both provided with a two-way wireless communication module, the two-way wireless communication module includes a wireless signal transceiver, and the wireless signal transceiver is connected to an antenna, and switch communication signals can be exchanged between the two antennas, the program-controlled room control cabinet is connected to the coal conveying belt control end, the bucket wheel excavator control cabinet is connected to the bucket wheel excavator tail car pull rope switch and the coal blocking switch through the two-way wireless communication module, and the bucket wheel excavator tail car pull rope switch and the coal blocking switch send out an alarm signal, which is transmitted to the bucket wheel excavator control cabinet through the two-way wireless communication module, and then transmitted to the program-controlled room control cabinet through the bucket wheel excavator control cabinet. The program-controlled room control cabinet and the coal conveying belt control end are provided with a chain lower belt shutdown condition, and the lower belt of the bucket wheel excavator is immediately stopped according to the action of the pull rope switch and the coal blocking switch alarm signal at the bucket wheel excavator tail car, and the program-controlled room control cabinet sends a wireless fault reset signal to the bucket wheel excavator control cabinet after detecting the operation of the coal conveying belt, so that it controls the bucket wheel excavator to operate normally.

2. A bucket wheel machine tail car alarm switch interlocking control system according to claim 1, characterized in that: The bucket wheel machine control cabinet and the program control room control cabinet are both connected to a power supply cabinet.

3. The bucket wheel machine tail car alarm switch interlocking control system according to claim 1, characterized in that: The condition for the chained lower belt to stop operating is: the belt is off track, and an angle control switch has been installed on site.

4. A bucket wheel machine tail car alarm switch interlocking control system according to claim 3, characterized in that: The conditions for stopping the interlocked lower belt are: emergency stop interlock. In this case, the tail car pull rope switch and the coal blocking micro switch are used together on site.

5. The bucket wheel machine tail car alarm switch interlocking control system according to claim 1, characterized in that: The stopping condition of the interlocking lower belt is: the pull rope and coal blocking switch of the car are sent to the PLC in the control room by wireless transmission.

6. The bucket wheel machine tail car alarm switch interlocking control system according to claim 1, characterized in that: The interlocked lower belt stopping condition is: the control room stops the next belt in an interlocked manner after receiving the stop command.

7. The bucket wheel machine tail car alarm switch interlocking control system according to claim 1, characterized in that: The bucket wheel excavator control cabinet and the program control room control cabinet are both connected with a protection module, and the protection module includes a protection net, a temperature sensor, and a humidity sensor.

8. The bucket wheel machine tail car alarm switch interlocking control system according to claim 7, characterized in that: The bucket wheel excavator control cabinet and the program control room control cabinet are both provided with monitoring modules, and the monitoring modules are connected to the terminal.

9. A bucket wheel machine tail car alarm switch interlocking control system according to claim 8, characterized in that: The control cabinet of the program control room comprises a cabinet (1), and both sides of the cabinet (1) are provided with heat dissipation ports and water baffles (5), a filter screen (4) is arranged in the heat dissipation port, the water baffle (5) is located above the heat dissipation port, a heat dissipation fan (8) and a water absorbent mesh (9) are fixed by bolts at a position near the heat dissipation port on the inner wall of one side of the cabinet (1), and the water absorbent mesh (9) is on one side of the heat dissipation fan (8), a temperature sensor (10) is fixed by bolts on the inner wall of one side of the cabinet (1), and a humidity sensor (15) is fixed by bolts on the inner wall of the other side, a camera (12) is fixed by bolts inside the top of the cabinet (1), and a plurality of vertically placed fixing frames (13) are fixed by bolts on the inner wall of one side of the cabinet (1), and a plurality of fixing holes are arranged on the fixing frames (13), and a plurality of mounting frames (14) are fixed by the fixing holes on the fixing frames (13).

10. A bucket wheel machine tail car alarm switch interlocking control system according to claim 9, characterized in that: A cabinet door (2) is provided on one side of the cabinet body (1), and an observation window (3) is provided on the cabinet door (2); a storage battery (7) is provided on the inner wall of the bottom of the cabinet body (1); and a protective cover (6) is provided on the top of the cabinet body (1), and a wireless signal transceiver (1) is provided on the protective cover (6).

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