Intelligent unearthed belt conveyor for shield tunneling machine

Abstract

The utility model relates to the technical field of belt conveyors, in particular to an intelligent unearthed belt conveyor for a shield tunneling machine. The device comprises a belt frame, carrier rollers, an unearthing frame, a motor and a speed reducer, the carrier rollers are installed on the belt frame in an array mode, a conveying belt is installed on a supporting pipe, the unearthing frame is arranged on the right side of the belt frame, and the motor and the speed reducer are installed on one side of the unearthing frame. The device further comprises a detection mechanism, and the detection mechanism monitors the position of the muck truck and the capacity of dumped muck in real time through a height sensor and a position sensor so as to control starting and stopping of the belt conveyor.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, and particularly relates to an intelligent earth-excavating belt conveyor for a shield machine. Background Art

[0002] When the existing belt conveyor starts, all alarms of the belt conveyor need to be eliminated. Different types of shield belt conveyors have different starting methods, including star-delta starting, soft starting, and frequency conversion starting. The control room starts the belt conveyor through buttons and is equipped with audible and visual alarms. When the muck is full, the excavation outlet uses the intercom mode to notify the control room, or manually presses the muck-full button on the trailer to notify the control room, all of which adopt the manual mode.

[0003] At present, most of the erectors of shield machines adopt manual soil inspection and communicate through walkie-talkies. If manual inspection is used, there will be a situation where personnel are distracted, resulting in the belt conveyor not stopping in time and muck spilling. At the same time, since the start and stop of the belt conveyor are also manually controlled, it will also cause the muck truck to be full while the tunneling mode does not stop, resulting in an excessive soil chamber pressure; and there will also be errors in manual soil measurement, making the empty and full degrees of each muck carriage different, resulting in a difference between the earth-excavating volume and the standard volume.

[0004] Therefore, the present invention provides an intelligent earth-excavating belt conveyor for a shield machine to solve the above problems. Content of the Utility Model

[0005] The technical problem to be solved by the utility model: At present, most of the erectors of shield machines adopt manual soil inspection and communicate through walkie-talkies. If manual inspection is used, there will be a situation where personnel are distracted, resulting in the belt conveyor not stopping in time and muck spilling. At the same time, since the start and stop of the belt conveyor are also manually controlled, it will also cause the muck truck to be full while the tunneling mode does not stop, resulting in an excessive soil chamber pressure; and there will also be errors in manual soil measurement, making the empty and full degrees of each muck carriage different, resulting in a difference between the earth-excavating volume and the standard volume.

[0006] The utility model provides the following technical solutions: An intelligent earth-excavating belt conveyor for a shield machine, including a belt rack, idlers, an earth-excavating rack, a motor, and a speed reducer. The idlers are arrayed and installed on the belt rack, a conveyor belt is installed on the idlers, an earth-excavating rack is arranged on the right side of the belt rack, and a motor and a speed reducer are installed on one side of the earth-excavating rack; it further includes a detection mechanism, and the detection mechanism controls the start and stop of the belt conveyor by real-time monitoring of the position of the muck truck and the muck capacity dumped through a height sensor and a position sensor.

[0007] Preferably, the detection mechanism includes a position detection sensor and a height detection sensor. The position detection sensor is installed inside the earth-excavating rack; the height detection sensor is installed on the top of the earth-excavating rack; waterproof covers are provided on both the position detection sensor and the height detection sensor.

[0008] The position detection sensor can adopt a laser reflection sensor with a measurement range of 0 - 2 meters. This tooling can detect whether the slag truck at the soil outlet of the belt conveyor is in place. The output of the measurement sensor is 2 groups of digital quantities, one for normal use and the other for backup.

[0009] The height detection sensor can adopt a laser ranging sensor with a measurement range of 0 - 4 meters. Select the sensor output type, with PNP switch quantity and analog quantity dual output. This tooling can detect the soil capacity in the slag truck at the soil outlet of the belt conveyor. After the soil reaches the set value, it prompts the slag truck driver to move the slag truck. When the liquid level drops, the prompt and alarm disappear, and the belt conveyor runs normally. The output of the measurement sensor is 1 group of digital quantity and 1 group of analog quantity.

[0010] Preferably, a soil leveling mechanism is installed in the soil outlet frame. The soil leveling mechanism includes a telescopic rod, a moving slide rail, a moving motor, and a soil leveling rod. The telescopic rods are arrayed around the soil leveling mechanism. The moving slide rails are installed on the telescopic rods, the soil leveling rods are installed in the moving slide rails, and the moving motor is installed in the soil leveling rods.

[0011] Preferably, a main control cabinet is arranged on one side of the belt frame. The main control cabinet is provided with a main CPU, an electrical control box, and a control interface.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model detects the position of the slag truck of the belt conveyor and the height of the soil in the slag truck through the detection mechanism, cooperates with the main console and the main control cabinet, and transmits the data to the main control CPU through the PROFIBUS communication protocol. The main CUP controls the relevant actions such as the operation or stop of the belt conveyor, the acceleration and deceleration of the belt conveyor, and the stop of the propulsion through logical calculation, ensuring that the soil of the belt conveyor is smoothly filled into the slag truck without splashing and other phenomena. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is the overall schematic diagram of the present utility model;

[0016] Figure 2 It is the schematic diagram of the detection mechanism of the present utility model;

[0017] Figure 3Schematic diagram of the position of the telescopic rod of the present utility model;

[0018] Figure 4 Schematic diagram of the control of the main control cabinet of the present utility model;

[0019] Figure 5 Schematic diagram of the control of the substation of the present utility model;

[0020] Figure 6 Schematic diagram of the control principle of the present utility model.

[0021] In the figure: 1, belt rack; 2, idler roller; 3, soil outlet rack; 4, motor; 5, reducer; 6, detection mechanism; 61, position detection sensor; 62, height detection sensor; 7, soil leveling mechanism; 71, telescopic rod; 72, moving slide rail; 73, moving motor; 74, soil leveling rod; 8, main control cabinet; 81, main CPU; 82, electrical control box; 83, control interface. Specific implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Therefore, the detailed description of the embodiments of the present utility model below is not intended to limit the scope of the present utility model claimed, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "rear", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is usually placed during use. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0025] It should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] The embodiments of the present disclosure aim to solve the problems that most of the erectors of current shield machines use manual soil viewing and communication through walkie-talkies. If manual viewing is adopted, there will be a situation where personnel are distracted, resulting in the belt conveyor not stopping in time and the spillage of muck. At the same time, since the start and stop of the belt conveyor are also manually controlled, it will also lead to the situation that the muck truck is full while the tunneling mode does not stop, causing excessive soil chamber pressure; and there will also be errors when using manual soil measurement, making the empty and full levels of each muck carriage different, resulting in a difference between the muck output and the standard amount. In view of this, the embodiments of the present disclosure propose an intelligent muck conveyor for shield machines. The detection mechanism detects the position of the muck truck and the height of the muck in the muck truck, cooperates with the main console and the main control cabinet, and transmits the information to the main control CPU through the PROFIBUS communication protocol. The main CUP controls the running or stopping of the belt conveyor, the acceleration and deceleration of the belt conveyor, the related actions such as the stop of propulsion, etc. through logical calculation, so as to ensure that the muck on the belt conveyor is smoothly filled into the muck truck without spillage and other phenomena.

[0027] As Figures 1 to 6 As shown, an intelligent muck conveyor for a shield machine includes a belt rack 1, a roller 2, a muck discharging rack 3, a motor 4 and a speed reducer 5. The belt rack 1 is arrayed with rollers 2, and a conveyor belt is installed on the rollers. There is a muck discharging rack 3 on the right side of the belt rack 1, and a motor 4 and a speed reducer 5 are installed on one side of the muck discharging rack 3. It is characterized in that it further includes a detection mechanism 6. The detection mechanism 6 real-time monitors the position of the muck truck and the volume of the dumped muck through a height sensor and a position sensor, and then controls the start and stop of the belt conveyor.

[0028] By adopting the above detection device, it is possible to realize the automatic detection of the entry of the vehicle and the detection of the height of the muck in the carriage, and then jointly with the main control room to automatically close the belt conveyor after the carriage is full. Due to the design of the detection mechanism 6, the process of manual judgment can be avoided, which not only saves time and effort in installation, reduces labor and time, but also the various systems are interlocked, and the belt conveyor stops and starts logically, with high accuracy and small error rate, realizing the concept of cost reduction and efficiency improvement.

[0029] As Figures 2 to 3As shown, the detection mechanism 6 includes a position detection sensor 61 and a height detection sensor 62. The position detection sensor 61 is installed inside the soil excavation rack 3; the height detection sensor 62 is installed on the top of the soil excavation rack 3; waterproof covers are provided on both the position detection sensor 61 and the height detection sensor 62, and the waterproof covers are used to prevent the sensors from getting water in or being damaged when placed outside.

[0030] The position detection sensor 61 can adopt a laser reflection sensor with a measurement range of 0 - 2 meters. This tooling can detect whether the slag truck at the belt conveyor soil outlet is in place. The output of the measurement sensor is 2 groups of digital quantities, one group for normal use, and the other group can be used as a backup.

[0031] The height detection sensor 62 can adopt a laser ranging sensor with a measurement range of 0 - 4 meters. Select the sensor output type, with PNP switch quantity and analog quantity dual output. This tooling can detect the soil capacity in the slag truck at the belt conveyor soil outlet. After the soil reaches the set value, it prompts the slag truck driver to move the slag truck. When the liquid level drops, the prompt and alarm disappear, and the belt conveyor operates normally. The output of the measurement sensor is 1 group of digital quantity and 1 group of analog quantity.

[0032] As Figures 2 to 3 As shown, a soil leveling mechanism 7 is installed inside the soil excavation rack 3. The soil leveling mechanism 7 includes a telescopic rod 71, a moving slide rail 72, a moving motor 73, and a soil leveling rod 74. The telescopic rods 71 are arrayed around the soil leveling mechanism 7, and the telescopic rods 71 are used to adjust different heights to adapt to different specifications of slag trucks; the moving slide rail 72 is installed on the telescopic rod 71, and the moving slide rail 72 is used to limit the sliding direction of the soil leveling rod 74; the soil leveling rod 74 is installed inside the moving slide rail 72, and the soil leveling rod 74 levels the soil in the slag truck; the moving motor 73 is installed inside the soil leveling rod 74, and the moving motor 73 is used to drive the soil leveling rod 74 to slide on the moving slide rail 72;

[0033] During operation, the main control room drives the telescopic rod 71 to extend, so that the soil leveling rod 74 is flush with the outer frame of the slag truck. Then, the belt conveyor is started, and the belt conveyor transports the soil to the slag truck. When the height detection sensor 62 detects that the soil height in the slag truck reaches the specified position, the moving motor 73 is started. The moving motor 73 drives the soil leveling rod 74 to move inside the moving slide rail 72, so that the soil in the slag truck is leveled. Then, the belt conveyor is started again to transport the soil until the soil in the slag truck fills the entire carriage.

[0034] Since the soil forms a shape similar to a small mountain when transported by the belt conveyor to the slag truck, there are gaps left around the slag truck. By using the above-mentioned soil leveling mechanism 7, the gaps around the slag truck can be filled by the movement of the soil leveling rod 74, thereby improving its transportation efficiency.

[0035] As Figures 4 to 6 shown, a main control cabinet 8 is provided on one side of the belt rack 1. A main CPU 81, an electrical control box 82 and a control interface 83 are provided in the main control cabinet 8;

[0036] The detection signals of the position detection sensor 61 and the height detection sensor 62 pass through the substation system and are transmitted to the main CPU 81 through the PROFIBUS communication protocol. The main CPU 81 controls the operation or stop of the belt conveyor, the acceleration and deceleration of the belt conveyor, the propulsion stop and other related actions through logical calculation, ensuring that the belt conveyor is smoothly filled with muck into the muck truck without splashing and other phenomena.

[0037] Substations are formed by PLC modules and connected to the main PLC, so as to realize data interaction and achieve the control purpose. The substation CPU uses Siemens 200Smart and is equipped with a 24V control power supply. The signals of the position detection sensor 61 and the height detection sensor 62 are connected to the PLC substation. Through the PLC program logic, the detection range can be set, the position of the belt conveyor muck truck and the capacity of the belt conveyor muck truck can be determined, so as to control the running speed of the belt.

[0038] At the same time, the PROFINET interface of the electrical control cabinet is connected to the main PLC through a shielded communication line to realize data interaction. The sensor data acquisition is connected to the analog quantity module through a shielded twisted pair. The wiring method refers to the design schematic diagram. Through software testing, verify whether the functions of each module and data transmission are normal; the PLC analyzes and performs logical operations on the signals of the picked-up position detection sensor 61 and height detection sensor 62, confirms the position of the muck truck and the height of the muck in the muck truck, and feeds back to the control interface 83. Through the setting of the control interface 83, the belt conveyor is prohibited from running when the set height is exceeded to prevent muck overflow caused by excessive height.

[0039] The overall working process is as follows: Fix the position detection sensor 61 inside the soil excavation frame 3, specifically directly below the soil excavation outlet. When the slag truck passes by, the laser can be reflected back from the side wall of the slag truck compartment to locate that the slag truck has been in place or left. At the same time, the main control room drives the telescopic rod 71 to extend, so that the soil leveling rod 74 is flush with the outer frame on the slag truck. Install the height detection sensor 62 on the top of the soil excavation frame 3, and use the laser to detect the height of the slag in the slag truck to determine whether the slag truck is full. When the set height is reached, start the moving motor 73. The moving motor 73 drives the soil leveling rod 74 to move within the moving slide rail 72, so that the slag in the slag truck is leveled. Then start the belt conveyor again to transport the slag until the slag in the slag truck fills the entire compartment. When the entire compartment is full and the battery car continues to move forward, when the position detection sensor 61 detects the gap between adjacent compartments, stop the operation of the belt conveyor. When the next compartment is in place, start the belt conveyor, and work in a cycle. To prevent emergencies, an automatic and manual knob for the belt conveyor is added to the main control room cabinet. In the automatic position, it operates according to the intelligent mode. In the manual position, the belt conveyor operates in the normal mode.

[0040] Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An intelligent soil discharging belt conveyor for a shield machine, comprising a belt rack (1), a carrying roller (2), a soil discharging rack (3), a motor (4) and a speed reducer (5). The carrying rollers (2) are arrayedly installed on the belt rack (1), and a conveyor belt is installed on the carrying rollers. A soil discharging rack (3) is arranged on the right side of the belt rack (1), and a motor (4) and a speed reducer (5) are installed on one side of the soil discharging rack (3); characterized in that, It further includes a detection mechanism (6). The detection mechanism (6) monitors the position of the muck truck and the muck capacity dumped in real time through a height sensor and a position sensor, and then controls the start and stop of the belt conveyor.

2. The intelligent soil conveying belt machine for a shield machine according to claim 1, wherein: The detection mechanism (6) includes a position detection sensor (61) and a height detection sensor (62). The position detection sensor (61) is installed inside the soil excavation frame (3); the height detection sensor (62) is installed on the top of the soil excavation frame (3); waterproof covers are provided on both the position detection sensor (61) and the height detection sensor (62).

3. The intelligent soil conveying belt machine for a shield machine according to claim 2, wherein: A soil leveling mechanism (7) is installed inside the soil excavation frame (3). The soil leveling mechanism (7) includes a telescopic rod (71), a moving slide rail (72), a moving motor (73) and a soil leveling rod (74). The telescopic rods (71) are arrayed around the soil leveling mechanism (7). The moving slide rail (72) is installed on the telescopic rod (71). The soil leveling rod (74) is installed inside the moving slide rail (72). The moving motor (73) is installed inside the soil leveling rod (74).

4. The intelligent soil conveying belt machine for a shield machine according to claim 3, characterized in that: A main control cabinet (8) is provided on one side of the belt rack (1). A main CPU (81), an electrical control box (82) and a control interface (83) are provided inside the main control cabinet (8).

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