Automatic operation system of earthwork exchange station in tunnel

Abstract

The utility model relates to the technical field of pipeline construction, in particular to an automatic operation system of an earthwork exchange station in a tunnel. Comprising an exchange station control system and a trolley control system. The exchange station control system comprises a stroke limiting sensor used for detecting the lifting state of a hopper and an exchange station control PLC. The trolley control system comprises four sets of photoelectric correlation sensors used for detecting the entering state of a trolley, a speed reduction sensor, a stop sensor, a weight sensor and a trolley control PLC. According to the utility model, through an advanced automation technology and an intelligent control means, the earthwork processing flow in the tunnel is optimized, and automatic excavation, loading, transportation and unloading of earthwork can be realized under the condition of unmanned operation or few-person operation, so that the construction efficiency is improved, the safety risk and environmental pollution are reduced, and modernization and intelligentization of tunnel construction are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, and particularly relates to an automatic operation system for an earthwork exchange station in a tunnel. Background Technique

[0002] During the tunnel construction process, the excavation, transportation, and treatment of earthwork are crucial links. In traditional tunnel construction methods, the operation of the earthwork exchange station in the tunnel mainly relies on manual command and the cooperation of mechanical equipment. Common treatment methods include using large machinery to load the earthwork onto transport vehicles, and then the vehicles transport the earthwork out of the tunnel. This method not only makes it difficult to coordinate manual command and mechanical operation, and is prone to waiting and idling phenomena, resulting in low overall construction efficiency, but also the tunnel environment is complex and the space is narrow, and collisions, overturning and other accidents are likely to occur during mechanical operation, bringing safety risks to construction workers. At the same time, dust and noise pollution are easily generated during the earthwork transportation process, affecting the construction environment and the quality of life of surrounding residents. With the development of technology, the automation and intelligence of earthwork treatment during the construction process have gradually become an important direction for the development of tunnel construction technology.

[0003] In order to improve the tunnel construction efficiency, ensure construction safety, and reduce environmental pollution, there is an urgent need for a system that can realize the automatic operation of the earthwork exchange station in the tunnel. Content of the Utility Model

[0004] Aiming at the above deficiencies of the prior art, the utility model proposes an automatic operation system for an earthwork exchange station in a tunnel.

[0005] The technical solution adopted by the utility model to achieve the above object is: an automatic operation system for an earthwork exchange station in a tunnel, characterized in that it includes an exchange station control system and a trolley control system;

[0006] The exchange station control system includes a travel limit sensor for detecting the lifting state of the hopper, an oil pressure sensor for detecting the jacking state of the jack, and an exchange station control PLC. The travel limit sensor is arranged on the upper part of the hoist, and the oil pressure sensor is arranged in the jack hydraulic pump station. The exchange station control PLC includes the following modules:

[0007] A preparation module: used to receive the trolley in-place signal from the trolley control PLC and make the exchange station perform a 10-second preparation;

[0008] An alarm module: used to receive the end signal of the preparation module and make the alarm sound a preparation alarm;

[0009] An execution module: used to receive the end signal of the alarm module and make the hopper of the exchange station perform a lifting action or the jack perform a jacking action;

[0010] Stop module: It is used to receive signals from the travel limit sensor and the oil pressure sensor to stop the hopper or the jack of the exchange station from rising.

[0011] Reset module: It is used to reset the system when the preparation module or the alarm module operates and the trolley moves away.

[0012] The trolley control system includes four groups of photoelectric pair sensors, deceleration sensors, stop sensors, weight sensors for detecting the entry state of the trolley and the trolley control PLC. The photoelectric pair sensors are connected to the lifting machine part and both sides of the jack part of the exchange station through sensor brackets. The length of the sensor bracket is equal to the length of the trolley. One photoelectric pair sensor is set at each of the head and tail sides of each part, and both are indented by a certain distance for parking error. The deceleration sensor and the stop sensor are respectively connected to the set deceleration point and stop point at the tunnel face and the tunnel entrance. The weight sensor is connected to the trolley. The trolley control PLC includes a full-load trolley control PLC and an empty-load trolley control PLC.

[0013] The full-load trolley control PLC includes the following modules:

[0014] Jack part travel module one: It is used to receive the full-load signal from the weight sensor to make the full-load trolley travel to the jack part.

[0015] Tunnel face travel module one: After the jack lifts the full-load hopper, the original full-load trolley travels to the tunnel face.

[0016] Lifting machine part travel module two: After the jack places the full-load hopper on the original empty-load trolley, the original full-load trolley travels to the lifting machine part.

[0017] Tunnel face travel module two: After the lifting machine places the empty-load hopper on the original full-load trolley, the original full-load trolley travels to the tunnel face.

[0018] The empty-load trolley control PLC includes the following modules:

[0019] Lifting machine part travel module one: It is used to receive the empty-load signal from the weight sensor to make the empty-load trolley travel to the lifting machine part.

[0020] Jack part travel module two: After the lifting machine lifts the empty-load hopper, the original empty-load trolley travels to the jack part.

[0021] Tunnel entrance travel module: After the jack places the full-load hopper on the original empty-load trolley, the original empty-load trolley travels to the tunnel entrance.

[0022] Both the full-load trolley control PLC and the empty-load trolley control PLC include:

[0023] Deceleration module: used to receive signals from deceleration sensors to decelerate the trolley;

[0024] Stop module: used to receive signals from stop sensors to stop the trolley.

[0025] The exchange station control PLC further includes a delay module: used for the exchange station to perform actions with a delay, and the time when the hopper lifts to the limit sensor is less than the end time of the delay; a counting module: used for the exchange station to perform counting alternation of lifting and lowering actions.

[0026] The photoelectric pair sensor retracts by 100 mm for parking error.

[0027] Both the exchange station control PLC and the trolley control PLC are connected to an emergency stop button, a display screen, a main switch, and an indicator light.

[0028] The utility model optimizes the earthwork handling process in the tunnel through advanced automation technology and intelligent control means, and can automatically excavate, load, transport, and unload earthwork under the condition of no or few operators, thereby improving construction efficiency, reducing safety risks and environmental pollution, and realizing the modernization and intelligentization of tunnel construction. Description of the Drawings

[0029] Figure 1 It is a schematic diagram of the sensor layout structure of the utility model;

[0030] In the figure: 1. Travel limit sensor; 2. Photoelectric pair sensor, 3. Deceleration sensor, 4. Stop sensor, 5. Weight sensor, 6. Oil pressure sensor, 7. Trolley track, A. Fully loaded trolley, B. Empty trolley. Detailed Embodiments Embodiment 1

[0031] As Figure 1 shown, an automated operation system for an earthwork exchange station in a tunnel includes an exchange station control system and a trolley control system;

[0032] The exchange station control system includes a travel limit sensor 1 for detecting the lifting state of the hopper, an oil pressure sensor 6 for detecting the jacking state of the jack, and an exchange station control PLC. The travel limit sensor 1 is arranged at the upper part of the lifter, and the oil pressure sensor 6 is arranged in the jack hydraulic pump station. The exchange station control PLC includes the following modules:

[0033] Preparation module: used to receive the trolley in-place signal from the trolley control PLC to make the exchange station perform a 10-second preparation;

[0034] Alarm module: used to receive the end signal of the preparation module to make the alarm sound a preparation alarm;

[0035] Execution module: It is used to receive the end signal of the alarm module to make the hopper of the exchange station perform a lifting action or the jack perform a jacking action;

[0036] Stop module: It is used to receive the signals of the travel limit sensor 1 and the oil pressure sensor 6 to make the hopper or the jack of the exchange station stop rising;

[0037] Reset module: It is used to reset the system when the preparation module or the alarm module acts and the trolley moves away;

[0038] The trolley control system includes four groups of photoelectric pair sensors 2, deceleration sensors 3, stop sensors 4, weight sensors 5 for detecting the entry state of the trolley and the trolley control PLC. The photoelectric pair sensors 2 are connected to the lifting machine part and both sides of the jack part of the exchange station through sensor brackets. The sensor brackets are equal in length to the trolley body. One photoelectric pair sensor 2 is set at each of the head and tail sides of each part, and both are indented by a certain distance for parking errors. The deceleration sensors 3 and stop sensors 4 are respectively connected to the deceleration points and stop points set at the face and the tunnel entrance. The weight sensor 5 is connected to the trolley. The trolley control PLC includes a full-load trolley control PLC and an empty-load trolley control PLC;

[0039] The full-load trolley control PLC includes the following modules:

[0040] Jack part travel module one: It is used to receive the full-load signal of the weight sensor to make the full-load trolley travel to the jack part;

[0041] Face travel module one: After the jack lifts the full-load hopper, the original full-load trolley travels to the face;

[0042] Lifting machine part travel module two: After the jack places the full-load hopper on the original empty-load trolley, the original full-load trolley travels to the lifting machine part;

[0043] Face travel module two: After the lifting machine places the empty-load hopper on the original full-load trolley, the original full-load trolley travels to the face;

[0044] The empty-load trolley control PLC includes the following modules:

[0045] Lifting machine part travel module one: It is used to receive the empty-load signal of the weight sensor to make the empty-load trolley travel to the lifting machine part;

[0046] Jack part travel module two: After the lifting machine lifts the empty-load hopper, the original empty-load trolley travels to the jack part;

[0047] Tunnel entrance travel module: After the jack places the full-load hopper on the original empty-load trolley, the original empty-load trolley travels to the tunnel entrance.

[0048] Both the full-load trolley control PLC and the empty-load trolley control PLC include:

[0049] A deceleration module: used to receive the signal from the deceleration sensor to decelerate the trolley;

[0050] A stop module: used to receive the signal from the stop sensor to stop the trolley.

[0051] The exchange station control PLC further includes a delay module: used for the exchange station to perform actions with a delay, and the time when the hopper is lifted to reach the limit sensor is less than the end time of the delay; a counting module: used for the exchange station to perform counting alternation of the lifting and lowering actions.

[0052] The photoelectric pair sensor retracts 100 mm for the parking error.

[0053] Both the exchange station control PLC and the trolley control PLC are connected to the emergency stop button, display screen, main switch, and indicator light. Embodiment 2

[0054] The application process of the present utility model is as follows:

[0055] The first step: The full-load trolley A receives the full-load signal from the weight sensor 5, so that the full-load trolley A travels to the jack part, and the empty-load trolley B receives the empty-load signal from the weight sensor 5, so that the empty-load trolley travels to the hoist part;

[0056] The second step: The hoist and jack of the exchange station receive the trolley in-position signal from the trolley control PLC, so that the hoist and jack of the exchange station perform a 10-second preparation;

[0057] The third step: When the preparation signal ends, the alarm sounds a preparation alarm;

[0058] The fourth step: When the alarm signal ends, the hoist and jack of the exchange station perform the actions of lifting and jacking;

[0059] The fifth step: After the jack lifts the full-load hopper, the original full-load trolley A travels to the heading face, and after the hoist lifts the empty-load hopper, the original empty-load trolley B travels to the jack part;

[0060] The sixth step: After the jack places the full-load hopper on the original empty-load trolley B, the original empty-load trolley B travels to the tunnel entrance, and at the same time, the original full-load trolley A travels to the hoist part;

[0061] The seventh step: After the hoist places the empty-load hopper on the original full-load trolley A, the original full-load trolley A travels to the heading face, thus completing one hopper interchange.

Claims

1. An automated operation system for an earthwork exchange station in a tunnel, characterized in that: Including exchange station control system and trolley control system; The exchange station control system includes a travel limit sensor for detecting the lifting state of the hopper, an oil pressure sensor for detecting the lifting state of the jack, and an exchange station control PLC. The travel limit sensor is arranged on the upper part of the lift, and the oil pressure sensor is arranged in the jack hydraulic pump station. The exchange station control PLC includes the following modules: Preparation module: used to receive the trolley in position signal from the trolley control PLC, so that the exchange station performs 10 seconds of preparation; Alarm module: used to receive the end signal of the preparation module and make the alarm send out the preparation alarm; Execution module: used to receive the end signal of the alarm module, so that the hopper of the exchange station performs the lifting action or the jack performs the lifting action; Stop module: used to receive signals from the travel limit sensor and the oil pressure sensor to stop the hopper or jack of the exchange station from rising; Reset module: used to reset the system when the preparatory module or alarm module is activated and the trolley is moved away; The trolley control system includes four groups of photoelectric opposing beam sensors, deceleration sensors, stop sensors, weight sensors and trolley control PLC for detecting the entry status of the trolley. The photoelectric opposing beam sensors are connected to the lifting part and the jack part of the exchange station at symmetrical positions on both sides through sensor brackets. The sensor bracket is equal to the length of the trolley. A photoelectric opposing beam sensor is arranged on the front and rear sides of each part, and they are all retracted a certain distance for parking error. The deceleration sensor and stop sensor are respectively connected to the deceleration point and stop point set at the face and the opening. The weight sensor is connected to the trolley. The trolley control PLC includes a fully loaded trolley control PLC and an unloaded trolley control PLC. The fully loaded trolley control PLC includes the following modules: Jack part moving module 1: used to receive the full load signal of the weight sensor and make the fully loaded trolley move to the jack part; Face moving module 1: used for lifting the fully loaded hopper with the jack, and then the fully loaded trolley moves to the face; Lifting part moving module 2: used for placing the fully loaded hopper on the original empty trolley with the jack, so that the original fully loaded trolley moves to the lifting part; The second tunnel face advancing module is used to lift the empty hopper onto the original fully loaded trolley and move the original fully loaded trolley to the tunnel face; The unloaded trolley control PLC includes the following modules: Lifting part moving module 1: used to receive the no-load signal of the weight sensor and make the no-load trolley move to the lifting part; Jack part moving module 2: used for lifting the empty hopper and moving the empty trolley to the jack part; Tunnel entrance advancing module: It is used to place the fully loaded hopper on the original empty trolley with a jack, and then move the original empty trolley to the tunnel entrance.

2. The automatic operation system of the earthwork exchange station in the tunnel according to claim 1, characterized in that: The fully loaded trolley control PLC and the unloaded trolley control PLC both include: Deceleration module: used to receive the signal from the deceleration sensor to slow down the car; Stop module: used to receive the signal from the stop sensor to stop the car.

3. The automatic operation system of the earthwork exchange station in a tunnel according to claim 1, characterized in that: The exchange station control PLC also includes a delay module: used for delaying the execution of actions at the exchange station, and the time for the hopper to reach the limit sensor is less than the delay end time; a counting module: used for counting and alternating the lifting and lowering actions executed by the exchange station.

4. The automatic operation system of the earthwork exchange station in a tunnel according to claim 1, characterized in that: The photoelectric beam sensor is retracted by 100 mm to allow for parking error.

5. An automated operation system for an earthwork exchange station in a tunnel according to any one of claims 1 to 4, characterized in that: The exchange station control PLC and the trolley control PLC are both connected to an emergency stop button, a display screen, a main switch, and an indicator light.

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